技术领域Technical Field
本申请涉及电池热量管理领域，具体而言，涉及模组加热系统、电池系统及动力汽车。The present application relates to the field of battery thermal management, and more specifically, to a module heating system, a battery system and a power vehicle.
背景技术Background Art
随着新能源技术的推广及发展，新能源电池系统的运用愈发广泛，纯电动或混合动力汽车的使用也变得越发普及。组成电池系统的电池模组在充放电过程中通常会因电芯电极分布或自然对流等因素，导致电池模组不同位置之间存在较大温差，其中尤以电池模组的靠近正极端的部位与靠近负极端的部位之间的温差较为突出，进而影响到电池模组的充放电性能及使用寿命。With the promotion and development of new energy technologies, the application of new energy battery systems has become more and more extensive, and the use of pure electric or hybrid vehicles has become more and more popular. During the charging and discharging process, the battery modules that make up the battery system usually have large temperature differences between different positions of the battery modules due to factors such as the distribution of the battery cell electrodes or natural convection. The temperature difference between the part close to the positive end and the part close to the negative end of the battery module is particularly prominent, which in turn affects the charging and discharging performance and service life of the battery module.
发明内容Summary of the invention
有鉴于此，本申请的目的在于提供一种模组加热系统、电池系统及动力汽车，其能够根据电池模组不同电极端所对应的侧面区域的温度调节针对该侧面区域的加热功率，减小电池模组的正极端部区域与负极端部区域之间的温差，使电池模组的正极端部温度与负极端部温度趋于一致，从而提高电池模组的充放电性能，延长电池模组的使用寿命。In view of this, the purpose of the present application is to provide a module heating system, a battery system and a power vehicle, which can adjust the heating power of the side area according to the temperature of the side area corresponding to different electrode ends of the battery module, reduce the temperature difference between the positive end area and the negative end area of the battery module, and make the temperature of the positive end and the negative end of the battery module tend to be consistent, thereby improving the charging and discharging performance of the battery module and extending the service life of the battery module.
第一方面，本申请实施例提供一种模组加热系统，所述模组加热系统包括第一加热膜、第二加热膜、第一感温件、第二感温件及分压组件；In a first aspect, an embodiment of the present application provides a module heating system, the module heating system comprising a first heating film, a second heating film, a first temperature sensing element, a second temperature sensing element and a pressure dividing component;
所述第一加热膜与电池模组的第一侧面区域接触，所述第二加热膜与所述电池模组的第二侧面区域接触，其中所述第一侧面区域靠近所述电池模组的正极端设置，所述第二侧面区域靠近所述电池模组的与所述正极端相对的负极端设置，所述第一加热膜与所述第二加热膜分别对各自接触的侧面区域进行加热；The first heating film contacts a first side region of the battery module, and the second heating film contacts a second side region of the battery module, wherein the first side region is arranged close to the positive terminal of the battery module, and the second side region is arranged close to the negative terminal of the battery module opposite to the positive terminal, and the first heating film and the second heating film heat the side regions they contact respectively;
所述第一感温件与所述第一侧面区域接触，所述第二感温件与所述第二侧面区域接触，其中所述第一感温件与所述第二感温件分别对各自接触的侧面区域进行温度感知；The first temperature sensing member is in contact with the first side area, and the second temperature sensing member is in contact with the second side area, wherein the first temperature sensing member and the second temperature sensing member respectively sense the temperature of the side areas they are in contact with;
所述分压组件与所述第一感温件接触，并与所述第一加热膜电性连接，用于根据所述第一感温件传导的温度对所述第一加热膜的工作电压进行调整，使所述第一加热膜的工作电压与所述第一感温件传导的温度负相关；The voltage divider component is in contact with the first temperature sensing element and is electrically connected to the first heating film, and is used to adjust the working voltage of the first heating film according to the temperature conducted by the first temperature sensing element, so that the working voltage of the first heating film is negatively correlated with the temperature conducted by the first temperature sensing element;
所述分压组件与所述第二感温件接触，并与所述第二加热膜电性连接，用于根据所述第二感温件传导的温度对所述第二加热膜的工作电压进行调整，使所述第二加热膜的工作电压与所述第二感温件传导的温度负相关。The voltage divider component is in contact with the second temperature sensing element and is electrically connected to the second heating film, and is used to adjust the working voltage of the second heating film according to the temperature conducted by the second temperature sensing element, so that the working voltage of the second heating film is negatively correlated with the temperature conducted by the second temperature sensing element.
在可选的实施方式中，所述分压组件包括第一膨胀结构及第一滑动变阻器；In an optional embodiment, the voltage dividing assembly includes a first expansion structure and a first sliding rheostat;
所述第一膨胀结构与所述第一感温件接触，并根据所述第一感温件传导的温度改变结构体积；The first expansion structure contacts the first temperature sensing member and changes the structure volume according to the temperature conducted by the first temperature sensing member;
所述第一膨胀结构与所述第一滑动变阻器的滑片粘连，并在所述第一膨胀结构的体积改变时带动所述第一滑动变阻器上的滑片进行滑动，用于调整所述第一滑动变阻器的电阻值，使所述第一滑动变阻器的电阻值与所述第一感温件传导的温度正相关；The first expansion structure is adhered to the sliding piece of the first sliding rheostat, and drives the sliding piece on the first sliding rheostat to slide when the volume of the first expansion structure changes, so as to adjust the resistance value of the first sliding rheostat so that the resistance value of the first sliding rheostat is positively correlated with the temperature conducted by the first temperature sensing element;
所述第一滑动变阻器与所述第一加热膜串联，用于对所述第一加热膜的工作电压进行分压。The first sliding resistor is connected in series with the first heating film and is used to divide the working voltage of the first heating film.
在可选的实施方式中，所述分压组件包括第一热敏电阻，其中所述第一热敏电阻的电阻值与温度正相关；In an optional embodiment, the voltage divider component includes a first thermistor, wherein the resistance value of the first thermistor is positively correlated with the temperature;
所述第一热敏电阻与所述第一感温件接触，并与所述第一加热膜串联，用于根据所述第一感温件传导的温度对所述第一加热膜的工作电压进行分压。The first thermistor is in contact with the first temperature sensing element and is connected in series with the first heating film, and is used to divide the working voltage of the first heating film according to the temperature conducted by the first temperature sensing element.
在可选的实施方式中，所述分压组件还包括第二膨胀结构及第二滑动变阻器；In an optional embodiment, the voltage dividing assembly further includes a second expansion structure and a second sliding rheostat;
所述第二膨胀结构与所述第二感温件接触，并根据所述第二感温件传导的温度改变结构体积；The second expansion structure is in contact with the second temperature sensing member and changes its structure volume according to the temperature conducted by the second temperature sensing member;
所述第二膨胀结构与所述第二滑动变阻器的滑片粘连，并在所述第二膨胀结构的体积改变时带动所述第二滑动变阻器上的滑片进行滑动，用于调整所述第二滑动变阻器的电阻值，使所述第二滑动变阻器的电阻值与所述第二感温件传导的温度正相关；The second expansion structure is adhered to the sliding piece of the second sliding rheostat, and drives the sliding piece on the second sliding rheostat to slide when the volume of the second expansion structure changes, so as to adjust the resistance value of the second sliding rheostat so that the resistance value of the second sliding rheostat is positively correlated with the temperature conducted by the second temperature sensing element;
所述第二滑动变阻器与所述第二加热膜串联，用于对所述第二加热膜的工作电压进行分压。The second sliding resistor is connected in series with the second heating film and is used to divide the working voltage of the second heating film.
在可选的实施方式中，所述分压组件还包括第二热敏电阻，其中所述第二热敏电阻的电阻值与温度正相关；In an optional embodiment, the voltage divider component further includes a second thermistor, wherein the resistance value of the second thermistor is positively correlated with the temperature;
所述第二热敏电阻与所述第二感温件接触，并与所述第二加热膜串联，用于根据所述第二感温件传导的温度对所述第二加热膜的工作电压进行分压。The second thermistor is in contact with the second temperature sensing element and is connected in series with the second heating film, and is used to divide the working voltage of the second heating film according to the temperature conducted by the second temperature sensing element.
在可选的实施方式中，所述分压组件包括连接件、第三膨胀结构、第四膨胀结构、第三滑动变阻器及第四滑动变阻器；In an optional embodiment, the voltage dividing assembly includes a connecting member, a third expansion structure, a fourth expansion structure, a third sliding rheostat and a fourth sliding rheostat;
所述第三膨胀结构与所述第一感温件接触，并根据所述第一感温件传导的温度改变结构体积；The third expansion structure contacts the first temperature sensing member and changes its structure volume according to the temperature conducted by the first temperature sensing member;
所述第四膨胀结构与所述第二感温件接触，并根据所述第二感温件传导的温度改变结构体积；The fourth expansion structure contacts the second temperature sensing member and changes its structure volume according to the temperature conducted by the second temperature sensing member;
所述第三膨胀结构与所述第四膨胀结构相向设置，所述连接件设置在所述第三膨胀结构与所述第四膨胀结构之间，并与所述第三膨胀结构及所述第四膨胀结构粘连，用于在所述第三膨胀结构与所述第四膨胀结构的作用下沿靠近所述第三膨胀结构或所述第四膨胀结构的方向移动；The third expansion structure and the fourth expansion structure are arranged opposite to each other, the connecting member is arranged between the third expansion structure and the fourth expansion structure, and is adhered to the third expansion structure and the fourth expansion structure, and is used to move in a direction close to the third expansion structure or the fourth expansion structure under the action of the third expansion structure and the fourth expansion structure;
所述连接件与所述第三滑动变阻器的滑片固定连接，并与所述第四滑动变阻器的滑片固定连接，用于在所述连接件移动时带动所述第三滑动变阻器上的滑片及所述第四滑动变阻器上的滑片进行滑动，其中所述第三滑动变阻器的电阻值与所述第四滑动变阻器的电阻值负相关；The connecting member is fixedly connected to the sliding piece of the third sliding rheostat and the sliding piece of the fourth sliding rheostat, and is used to drive the sliding piece on the third sliding rheostat and the sliding piece on the fourth sliding rheostat to slide when the connecting member moves, wherein the resistance value of the third sliding rheostat is negatively correlated with the resistance value of the fourth sliding rheostat;
所述第三滑动变阻器与所述第一加热膜串联，用于对所述第一加热膜的工作电压进行分压；The third sliding resistor is connected in series with the first heating film, and is used to divide the working voltage of the first heating film;
所述第四滑动变阻器与所述第二加热膜串联，用于对所述第二加热膜的工作电压进行分压。The fourth sliding resistor is connected in series with the second heating film and is used for dividing the working voltage of the second heating film.
在可选的实施方式中，所述第一感温件与所述第二感温件均为毛细管。In an optional embodiment, the first temperature sensing member and the second temperature sensing member are both capillaries.
在可选的实施方式中，所述第一加热膜内的加热体与所述第二加热膜内的加热体均为曲折状结构。In an optional embodiment, the heating body in the first heating film and the heating body in the second heating film are both zigzag structures.
第二方面，本申请实施例提供一种电池系统，所述电池系统包括电池模组及前述实施方式中任意一项所述的模组加热系统，所述模组加热系统与所述电池模组接触，用于对所述电池模组进行加热处理。In a second aspect, an embodiment of the present application provides a battery system, which includes a battery module and a module heating system as described in any one of the aforementioned embodiments, wherein the module heating system is in contact with the battery module and is used to heat the battery module.
第三方面，本申请实施例提供一种动力汽车，所述动力汽车包括动力车体及前述实施方式所述的电池系统，所述电池系统与所述动力车体电性连接，用于向所述动力车体提供电能。In a third aspect, an embodiment of the present application provides a power vehicle, which includes a power vehicle body and the battery system described in the aforementioned embodiment, wherein the battery system is electrically connected to the power vehicle body for providing electrical energy to the power vehicle body.
相对于现有技术而言，本申请具有以下有益效果：Compared with the prior art, this application has the following beneficial effects:
本申请通过第一感温件对电池模组的靠近正极端的第一侧面区域进行温度感知，通过第二感温件对该电池模组的靠近负极端的第二侧面区域进行温度感知，其中正极端与负极端相对设置，并由分压组件根据第一感温件传导的温度调整与第一侧面区域接触的第一加热膜的工作电压，由分压组件根据第二感温件传导的温度调整与第二侧面区域接触的第二加热膜的工作电压，使每个加热膜的工作电压与其接触的侧面区域的温度负相关，两个侧面区域中的温度高的区域处的加热功率相较于温度低的区域处的加热功率更小，从而减小电池模组的正极端部区域与负极端部区域之间的温差，使电池模组的正极端部与负极端部的温度趋于一致，提高电池模组的充放电性能，延长电池模组的使用寿命。The present application senses the temperature of a first side area near the positive end of the battery module through a first temperature sensing component, and senses the temperature of a second side area near the negative end of the battery module through a second temperature sensing component, wherein the positive end and the negative end are arranged opposite to each other, and the voltage divider component adjusts the working voltage of the first heating film in contact with the first side area according to the temperature conducted by the first temperature sensing component, and the voltage divider component adjusts the working voltage of the second heating film in contact with the second side area according to the temperature conducted by the second temperature sensing component, so that the working voltage of each heating film is negatively correlated with the temperature of the side area it contacts, and the heating power at the high temperature area in the two side areas is smaller than the heating power at the low temperature area, thereby reducing the temperature difference between the positive end area and the negative end area of the battery module, making the temperatures of the positive end and the negative end of the battery module tend to be consistent, improving the charging and discharging performance of the battery module, and extending the service life of the battery module.
为使本申请的上述目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附附图，作详细说明如下。In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
图1为本申请实施例提供的电池系统的结构组成示意图；FIG1 is a schematic diagram of the structure of a battery system provided in an embodiment of the present application;
图2为本申请实施例提供的分压组件的安装示意图之一；FIG2 is one of the installation schematic diagrams of the voltage divider assembly provided in the embodiment of the present application;
图3为本申请实施例提供的分压组件的安装示意图之二；FIG3 is a second schematic diagram of the installation of the voltage divider assembly provided in an embodiment of the present application;
图4为本申请实施例提供的分压组件的安装示意图之三；FIG4 is a third installation diagram of a voltage divider assembly provided in an embodiment of the present application;
图5为本申请实施例提供的分压组件的安装示意图之四；FIG5 is a fourth schematic diagram of the installation of the voltage divider assembly provided in an embodiment of the present application;
图6为本申请实施例提供的分压组件的安装示意图之五。FIG. 6 is a fifth installation diagram of the voltage divider assembly provided in an embodiment of the present application.
图标：10-电池系统；100-模组加热系统；200-电池模组；210-正极端；220-负极端；230-第一侧面区域；240-第二侧面区域；110-第一加热膜；120-第二加热膜；130-第一感温件；140-第二感温件；150-分压组件；151-第一膨胀结构；152-第一滑动变阻器；153-第一热敏电阻；154-第二膨胀结构；155-第二滑动变阻器；156-第二热敏电阻；157-连接件；158-第三膨胀结构；159-第四膨胀结构；161-第三滑动变阻器；162-第四滑动变阻器。Icons: 10-battery system; 100-module heating system; 200-battery module; 210-positive terminal; 220-negative terminal; 230-first side area; 240-second side area; 110-first heating film; 120-second heating film; 130-first temperature sensing element; 140-second temperature sensing element; 150-voltage divider assembly; 151-first expansion structure; 152-first sliding rheostat; 153-first thermistor; 154-second expansion structure; 155-second sliding rheostat; 156-second thermistor; 157-connector; 158-third expansion structure; 159-fourth expansion structure; 161-third sliding rheostat; 162-fourth sliding rheostat.
具体实施方式DETAILED DESCRIPTION
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该申请产品使用时惯常摆放的方位或位置关系，或者是本领域技术人员惯常理解的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the application is used, or are the orientation or position relationship commonly understood by technical personnel in this field. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
此外，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。In addition, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
在本申请的描述中，还需要说明的是，术语“第一”和“第二”等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。In the description of the present application, it should also be noted that the relational terms such as the terms "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互结合。In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
请参照图1，图1是本申请实施例提供的电池系统10的结构组成示意图。在本申请实施例中，所述电池系统10包括电池模组200及模组加热系统100，所述模组加热系统100与所述电池模组200接触，用于对所述电池模组200进行加热处理，以减小所述电池模组200的正极端部区域与负极端部区域之间的温差，使所述电池模组200的正极端部区域与负极端部区域的温度趋于一致，从而提高该电池模组200的充放电性能，延长该电池模组200的使用寿命。其中，所述电池模组200的正极端部为该电池模组200内排列的绝大部分电芯的正极所在的空间部位，所述电池模组200的负极端部为该电池模组200内排列的绝大部分电芯的负极所在的空间部位。Please refer to FIG. 1, which is a schematic diagram of the structure of a battery system 10 provided in an embodiment of the present application. In the embodiment of the present application, the battery system 10 includes a battery module 200 and a module heating system 100, and the module heating system 100 is in contact with the battery module 200, and is used to heat the battery module 200 to reduce the temperature difference between the positive terminal region and the negative terminal region of the battery module 200, so that the temperature of the positive terminal region and the negative terminal region of the battery module 200 tends to be consistent, thereby improving the charge and discharge performance of the battery module 200 and extending the service life of the battery module 200. Among them, the positive terminal of the battery module 200 is the spatial part where the positive poles of most of the battery cells arranged in the battery module 200 are located, and the negative terminal of the battery module 200 is the spatial part where the negative poles of most of the battery cells arranged in the battery module 200 are located.
在本申请实施例中，所述电池模组200包括相对设置的正极端210及负极端220，其中所述正极端210为所述电池模组200的靠近绝大部分电芯的正极所在的一端，所述负极端220为所述电池模组200的靠近绝大部分电芯的负极所在的一端。所述电池模组200还包括第一侧面区域230及第二侧面区域240，所述第一侧面区域230为所述电池模组200的侧面上的靠近所述正极端210的区域，所述第二侧面区域240为所述电池模组200的侧面上的靠近所述负极端220的区域。In the embodiment of the present application, the battery module 200 includes a positive terminal 210 and a negative terminal 220 that are arranged opposite to each other, wherein the positive terminal 210 is the end of the battery module 200 close to the positive electrode of most of the battery cells, and the negative terminal 220 is the end of the battery module 200 close to the negative electrode of most of the battery cells. The battery module 200 also includes a first side region 230 and a second side region 240, wherein the first side region 230 is the region on the side of the battery module 200 close to the positive terminal 210, and the second side region 240 is the region on the side of the battery module 200 close to the negative terminal 220.
在本申请实施例中，所述模组加热系统100包括第一加热膜110、第二加热膜120、第一感温件130、第二感温件140及分压组件150，其中所述第一加热膜110用于对所述电池模组200的第一侧面区域230进行加热处理，所述第二加热膜120用于对所述电池模组200的第二侧面区域240进行加热处理，所述第一感温件130用于对所述第一侧面区域230进行温度感知，所述第二感温件140用于对所述第二侧面区域240进行温度感知，所述分压组件150用于对所述第一加热膜110的工作电压进行调整，并对所述第二加热膜120的工作电压进行调整，以调整所述第一加热膜110与所述第二加热膜120各自的加热功率，使所述电池模组200的正极端部区域与负极端部区域的温度逐渐趋于一致，减小所述电池模组200的正极端部区域与负极端部区域之间的温差，从而提高所述电池模组200的充放电性能，延长所述电池模组200的使用寿命。In the embodiment of the present application, the module heating system 100 includes a first heating film 110, a second heating film 120, a first temperature sensing element 130, a second temperature sensing element 140 and a pressure dividing component 150, wherein the first heating film 110 is used to heat the first side area 230 of the battery module 200, the second heating film 120 is used to heat the second side area 240 of the battery module 200, the first temperature sensing element 130 is used to sense the temperature of the first side area 230, and the second temperature sensing element 140 is used to sense the temperature of the second side area 240 performs temperature sensing, and the voltage divider component 150 is used to adjust the working voltage of the first heating film 110 and the working voltage of the second heating film 120, so as to adjust the heating power of the first heating film 110 and the second heating film 120 respectively, so that the temperature of the positive end area and the negative end area of the battery module 200 gradually tend to be consistent, and the temperature difference between the positive end area and the negative end area of the battery module 200 is reduced, thereby improving the charging and discharging performance of the battery module 200 and extending the service life of the battery module 200.
在本实施例中，所述第一加热膜110与所述电池模组200的第一侧面区域230接触，用于对所述第一侧面区域230进行加热处理，以调整所述电池模组200的正极端部温度；所述第二加热膜120与所述电池模组200的第二侧面区域240接触，用于对所述第二侧面区域240进行加热处理，以调整所述电池模组200的负极端部温度。In this embodiment, the first heating film 110 is in contact with the first side area 230 of the battery module 200, and is used to heat the first side area 230 to adjust the positive terminal temperature of the battery module 200; the second heating film 120 is in contact with the second side area 240 of the battery module 200, and is used to heat the second side area 240 to adjust the negative terminal temperature of the battery module 200.
在本实施例中，所述第一感温件130与所述第一侧面区域230接触，用于对所述第一加热膜110作用下的所述第一侧面区域230的温度进行感知；所述第二感温件140与所述第二侧面区域240接触，用于对所述第二加热膜120作用下的所述第二侧面区域240的温度进行感知。In this embodiment, the first temperature sensing element 130 is in contact with the first side area 230 for sensing the temperature of the first side area 230 under the action of the first heating film 110 ; the second temperature sensing element 140 is in contact with the second side area 240 for sensing the temperature of the second side area 240 under the action of the second heating film 120 .
在本实施例中，所述分压组件150与所述第一感温件130接触，用于接收由所述第一感温件130传导的所述第一侧面区域230的温度。所述分压组件150与所述第一加热膜110电性连接，用于根据所述第一感温件130传导的温度对所述第一加热膜110的工作电压进行调整，使所述第一加热膜110的工作电压与所述第一感温件130传导的温度负相关，即若所述第一侧面区域230的温度越高，则所述第一加热膜110的工作电压越小，所述第一加热膜110的加热功率越小，该第一加热膜110可向所述第一侧面区域230提供的热量越少。In this embodiment, the voltage-dividing component 150 is in contact with the first temperature-sensing element 130, and is used to receive the temperature of the first side area 230 conducted by the first temperature-sensing element 130. The voltage-dividing component 150 is electrically connected to the first heating film 110, and is used to adjust the working voltage of the first heating film 110 according to the temperature conducted by the first temperature-sensing element 130, so that the working voltage of the first heating film 110 is negatively correlated with the temperature conducted by the first temperature-sensing element 130, that is, if the temperature of the first side area 230 is higher, the working voltage of the first heating film 110 is smaller, the heating power of the first heating film 110 is smaller, and the first heating film 110 can provide less heat to the first side area 230.
在本实施例中，所述分压组件150与所述第二感温件140接触，用于接收由所述第二感温件140传导的所述第二侧面区域240的温度。所述分压组件150与所述第二加热膜120电性连接，用于根据所述第二感温件140传导的温度对所述第二加热膜120的工作电压进行调整，使所述第二加热膜120的工作电压与所述第二感温件140传导的温度负相关，即若所述第二侧面区域240的温度越低，则所述第二加热膜120的工作电压越大，所述第二加热膜120的加热功率越大，该第二加热膜120可向所述第二侧面区域240提供的热量越多。In this embodiment, the voltage-dividing component 150 is in contact with the second temperature-sensing element 140, and is used to receive the temperature of the second side area 240 conducted by the second temperature-sensing element 140. The voltage-dividing component 150 is electrically connected to the second heating film 120, and is used to adjust the working voltage of the second heating film 120 according to the temperature conducted by the second temperature-sensing element 140, so that the working voltage of the second heating film 120 is negatively correlated with the temperature conducted by the second temperature-sensing element 140, that is, if the temperature of the second side area 240 is lower, the working voltage of the second heating film 120 is greater, the heating power of the second heating film 120 is greater, and the second heating film 120 can provide more heat to the second side area 240.
在本实施例中，所述模组加热系统100通过所述分压组件150根据所述电池模组200不同侧面区域的温度调节针对该侧面区域的加热功率，使两个侧面区域中的温度高的区域处的加热功率相较于温度低的区域处的加热功率更小，从而减小电池模组200的正极端部区域与负极端部区域之间的温差，并确保所述电池模组200的正极端部与负极端部的温度逐渐趋于一致，提高所述电池模组200的充放电性能，延长所述电池模组200的使用寿命。In this embodiment, the module heating system 100 adjusts the heating power for different side areas of the battery module 200 according to the temperature of the side areas through the voltage divider component 150, so that the heating power at the high temperature area of the two side areas is smaller than the heating power at the low temperature area, thereby reducing the temperature difference between the positive end area and the negative end area of the battery module 200, and ensuring that the temperature of the positive end and the negative end of the battery module 200 gradually tend to be consistent, thereby improving the charging and discharging performance of the battery module 200 and extending the service life of the battery module 200.
可选地，请参照图2，图2是本申请实施例提供的分压组件150的安装示意图之一。在本实施例的第一种实施方式中，所述分压组件150包括第一膨胀结构151、第一滑动变阻器152、第二膨胀结构154及第二滑动变阻器155。Alternatively, please refer to FIG. 2 , which is one of the schematic diagrams of the installation of the voltage dividing assembly 150 provided in the embodiment of the present application. In the first implementation of the present embodiment, the voltage dividing assembly 150 includes a first expansion structure 151 , a first sliding resistor 152 , a second expansion structure 154 and a second sliding resistor 155 .
具体地，所述第一膨胀结构151与所述第一感温件130接触，并根据所述第一感温件130传导的温度改变结构体积。所述第一膨胀结构151与所述第一滑动变阻器152的滑片粘连，并在所述第一膨胀结构151的体积改变时带动所述第一滑动变阻器152上的滑片进行滑动，用于调整所述第一滑动变阻器152的电阻值，使所述第一滑动变阻器152的电阻值与所述第一感温件130传导的温度正相关，即若所述第一侧面区域230的温度越高，则所述第一滑动变阻器152的电阻值越大。所述第一滑动变阻器152与所述第一加热膜110串联，用于对所述第一加热膜110的工作电压进行分压，即若所述第一滑动变阻器152的电阻值越大，则所述第一加热膜110的工作电压越小，所述第一加热膜110的加热功率越小。Specifically, the first expansion structure 151 contacts the first temperature sensing element 130 and changes the structure volume according to the temperature conducted by the first temperature sensing element 130. The first expansion structure 151 adheres to the sliding piece of the first sliding rheostat 152 and drives the sliding piece on the first sliding rheostat 152 to slide when the volume of the first expansion structure 151 changes, so as to adjust the resistance value of the first sliding rheostat 152 so that the resistance value of the first sliding rheostat 152 is positively correlated with the temperature conducted by the first temperature sensing element 130, that is, if the temperature of the first side area 230 is higher, the resistance value of the first sliding rheostat 152 is larger. The first sliding rheostat 152 is connected in series with the first heating film 110 and is used to divide the working voltage of the first heating film 110, that is, if the resistance value of the first sliding rheostat 152 is larger, the working voltage of the first heating film 110 is smaller, and the heating power of the first heating film 110 is smaller.
所述第二膨胀结构154与所述第二感温件140接触，并根据所述第二感温件140传导的温度改变结构体积。所述第二膨胀结构154与所述第二滑动变阻器155的滑片粘连，并在所述第二膨胀结构154的体积改变时带动所述第二滑动变阻器155上的滑片进行滑动，用于调整所述第二滑动变阻器155的电阻值，使所述第二滑动变阻器155的电阻值与所述第二感温件140传导的温度正相关，即若所述第二侧面区域240的温度越低，则所述第二滑动变阻器155的电阻值越小。所述第二滑动变阻器155与所述第二加热膜120串联，用于对所述第二加热膜120的工作电压进行分压，即若所述第二滑动变阻器155的电阻值越小，则所述第二加热膜120的工作电压越大，所述第二加热膜120的加热功率越大。The second expansion structure 154 contacts the second temperature sensing member 140 and changes the structure volume according to the temperature conducted by the second temperature sensing member 140. The second expansion structure 154 adheres to the sliding piece of the second sliding rheostat 155 and drives the sliding piece on the second sliding rheostat 155 to slide when the volume of the second expansion structure 154 changes, and is used to adjust the resistance value of the second sliding rheostat 155 so that the resistance value of the second sliding rheostat 155 is positively correlated with the temperature conducted by the second temperature sensing member 140, that is, if the temperature of the second side area 240 is lower, the resistance value of the second sliding rheostat 155 is smaller. The second sliding rheostat 155 is connected in series with the second heating film 120, and is used to divide the working voltage of the second heating film 120, that is, if the resistance value of the second sliding rheostat 155 is smaller, the working voltage of the second heating film 120 is larger, and the heating power of the second heating film 120 is larger.
其中，所述第一膨胀结构151可以是随温度的增高发生膨胀并随温度的降低发生收缩的热敏结构，也可以是随温度的增高发生收缩并随温度的降低发生膨胀的热敏结构；所述第二膨胀结构154可以是随温度的增高发生膨胀并随温度的降低发生收缩的热敏结构，也可以是随温度的增高发生收缩并随温度的降低发生膨胀的热敏结构。所述第一膨胀结构151与所述第二膨胀结构154的与温度相关的形变特性可根据需求进行不同的选择。The first expansion structure 151 may be a thermosensitive structure that expands with increasing temperature and contracts with decreasing temperature, or a thermosensitive structure that contracts with increasing temperature and expands with decreasing temperature; the second expansion structure 154 may be a thermosensitive structure that expands with increasing temperature and contracts with decreasing temperature, or a thermosensitive structure that contracts with increasing temperature and expands with decreasing temperature. The temperature-related deformation characteristics of the first expansion structure 151 and the second expansion structure 154 may be selected differently according to requirements.
可选地，请参照图3，图3是本申请实施例提供的分压组件150的安装示意图之二。在本实施例的第二种实施方式中，所述分压组件150包括第一热敏电阻153、第二膨胀结构154及第二滑动变阻器155，其中所述第一热敏电阻153的电阻值与温度正相关。Optionally, please refer to Figure 3, which is a second schematic diagram of the installation of the voltage divider assembly 150 provided in the embodiment of the present application. In the second implementation of this embodiment, the voltage divider assembly 150 includes a first thermistor 153, a second expansion structure 154 and a second sliding rheostat 155, wherein the resistance value of the first thermistor 153 is positively correlated with the temperature.
具体地，所述第一热敏电阻153与所述第一感温件130接触，并与所述第一加热膜110串联，用于根据所述第一感温件130传导的与所述第一侧面区域230对应的温度，对所述第一加热膜110的工作电压进行分压，其中，若所述第一侧面区域230的温度越高，则所述第一热敏电阻153的电阻值越大，所述第一加热膜110的工作电压越小，所述第一加热膜110的加热功率越小。Specifically, the first thermistor 153 is in contact with the first temperature sensing element 130 and is connected in series with the first heating film 110, and is used to divide the working voltage of the first heating film 110 according to the temperature corresponding to the first side area 230 conducted by the first temperature sensing element 130, wherein, if the temperature of the first side area 230 is higher, the resistance value of the first thermistor 153 is larger, the working voltage of the first heating film 110 is smaller, and the heating power of the first heating film 110 is smaller.
所述第二膨胀结构154与所述第二感温件140接触，并根据所述第二感温件140传导的温度改变结构体积。所述第二膨胀结构154与所述第二滑动变阻器155的滑片粘连，并在所述第二膨胀结构154的体积改变时带动所述第二滑动变阻器155上的滑片进行滑动，用于调整所述第二滑动变阻器155的电阻值，使所述第二滑动变阻器155的电阻值与所述第二感温件140传导的温度正相关，即若所述第二侧面区域240的温度越低，则所述第二滑动变阻器155的电阻值越小。所述第二滑动变阻器155与所述第二加热膜120串联，用于对所述第二加热膜120的工作电压进行分压，即若所述第二滑动变阻器155的电阻值越小，则所述第二加热膜120的工作电压越大，所述第二加热膜120的加热功率越大。The second expansion structure 154 contacts the second temperature sensing member 140 and changes the structure volume according to the temperature conducted by the second temperature sensing member 140. The second expansion structure 154 adheres to the sliding piece of the second sliding rheostat 155 and drives the sliding piece on the second sliding rheostat 155 to slide when the volume of the second expansion structure 154 changes, and is used to adjust the resistance value of the second sliding rheostat 155 so that the resistance value of the second sliding rheostat 155 is positively correlated with the temperature conducted by the second temperature sensing member 140, that is, if the temperature of the second side area 240 is lower, the resistance value of the second sliding rheostat 155 is smaller. The second sliding rheostat 155 is connected in series with the second heating film 120, and is used to divide the working voltage of the second heating film 120, that is, if the resistance value of the second sliding rheostat 155 is smaller, the working voltage of the second heating film 120 is larger, and the heating power of the second heating film 120 is larger.
其中，所述第二膨胀结构154可以是随温度的增高发生膨胀并随温度的降低发生收缩的热敏结构，也可以是随温度的增高发生收缩并随温度的降低发生膨胀的热敏结构。此时，所述第二膨胀结构154的与温度相关的形变特性可根据需求进行不同的选择。The second expansion structure 154 may be a thermosensitive structure that expands with increasing temperature and contracts with decreasing temperature, or may be a thermosensitive structure that contracts with increasing temperature and expands with decreasing temperature. In this case, the temperature-related deformation characteristics of the second expansion structure 154 may be selected differently according to requirements.
可选地，请参照图4，图4是本申请实施例提供的分压组件150的安装示意图之三。在本实施例的第三种实施方式中，所述分压组件150包括第一膨胀结构151、第一滑动变阻器152及第二热敏电阻156，其中所述第二热敏电阻156的电阻值与温度正相关。Optionally, please refer to Figure 4, which is a third installation schematic diagram of the voltage divider assembly 150 provided in the embodiment of the present application. In the third implementation of this embodiment, the voltage divider assembly 150 includes a first expansion structure 151, a first sliding rheostat 152 and a second thermistor 156, wherein the resistance value of the second thermistor 156 is positively correlated with the temperature.
具体地，所述第一膨胀结构151与所述第一感温件130接触，并根据所述第一感温件130传导的温度改变结构体积。所述第一膨胀结构151与所述第一滑动变阻器152的滑片粘连，并在所述第一膨胀结构151的体积改变时带动所述第一滑动变阻器152上的滑片进行滑动，用于调整所述第一滑动变阻器152的电阻值，使所述第一滑动变阻器152的电阻值与所述第一感温件130传导的温度正相关，即若所述第一侧面区域230的温度越高，则所述第一滑动变阻器152的电阻值越大。所述第一滑动变阻器152与所述第一加热膜110串联，用于对所述第一加热膜110的工作电压进行分压，即若所述第一滑动变阻器152的电阻值越大，则所述第一加热膜110的工作电压越小，所述第一加热膜110的加热功率越小。Specifically, the first expansion structure 151 contacts the first temperature sensing element 130 and changes the structure volume according to the temperature conducted by the first temperature sensing element 130. The first expansion structure 151 adheres to the sliding piece of the first sliding rheostat 152 and drives the sliding piece on the first sliding rheostat 152 to slide when the volume of the first expansion structure 151 changes, so as to adjust the resistance value of the first sliding rheostat 152 so that the resistance value of the first sliding rheostat 152 is positively correlated with the temperature conducted by the first temperature sensing element 130, that is, if the temperature of the first side area 230 is higher, the resistance value of the first sliding rheostat 152 is larger. The first sliding rheostat 152 is connected in series with the first heating film 110 and is used to divide the working voltage of the first heating film 110, that is, if the resistance value of the first sliding rheostat 152 is larger, the working voltage of the first heating film 110 is smaller, and the heating power of the first heating film 110 is smaller.
所述第二热敏电阻156与所述第二感温件140接触，并与所述第二加热膜120串联，用于根据所述第二感温件140传导的与所述第二侧面区域240对应的温度，对所述第二加热膜120的工作电压进行分压，其中，若所述第二侧面区域240的温度越低，则所述第二热敏电阻156的电阻值越小，所述第二加热膜120的工作电压越大，所述第二加热膜120的加热功率越大。The second thermistor 156 is in contact with the second temperature-sensing element 140 and is connected in series with the second heating film 120, and is used to divide the working voltage of the second heating film 120 according to the temperature corresponding to the second side area 240 conducted by the second temperature-sensing element 140, wherein, if the temperature of the second side area 240 is lower, the resistance value of the second thermistor 156 is smaller, the working voltage of the second heating film 120 is larger, and the heating power of the second heating film 120 is larger.
其中，所述第一膨胀结构151可以是随温度的增高发生膨胀并随温度的降低发生收缩的热敏结构，也可以是随温度的增高发生收缩并随温度的降低发生膨胀的热敏结构。此时，所述第一膨胀结构151的与温度相关的形变特性可根据需求进行不同的选择。The first expansion structure 151 may be a thermosensitive structure that expands with increasing temperature and contracts with decreasing temperature, or may be a thermosensitive structure that contracts with increasing temperature and expands with decreasing temperature. In this case, the temperature-related deformation characteristics of the first expansion structure 151 may be selected differently according to requirements.
可选地，请参照图5，图5是本申请实施例提供的分压组件150的安装示意图之四。在本实施例的第四种实施方式中，所述分压组件150包括第一热敏电阻153及第二热敏电阻156，其中所述第一热敏电阻153的电阻值与温度正相关，所述第二热敏电阻156的电阻值与温度正相关。Optionally, please refer to Figure 5, which is a fourth installation diagram of the voltage divider component 150 provided in the embodiment of the present application. In the fourth implementation of the present embodiment, the voltage divider component 150 includes a first thermistor 153 and a second thermistor 156, wherein the resistance value of the first thermistor 153 is positively correlated with the temperature, and the resistance value of the second thermistor 156 is positively correlated with the temperature.
具体地，所述第一热敏电阻153与所述第一感温件130接触，并与所述第一加热膜110串联，用于根据所述第一感温件130传导的与所述第一侧面区域230对应的温度，对所述第一加热膜110的工作电压进行分压，其中，若所述第一侧面区域230的温度越高，则所述第一热敏电阻153的电阻值越大，所述第一加热膜110的工作电压越小，所述第一加热膜110的加热功率越小。Specifically, the first thermistor 153 is in contact with the first temperature sensing element 130 and is connected in series with the first heating film 110, and is used to divide the working voltage of the first heating film 110 according to the temperature corresponding to the first side area 230 conducted by the first temperature sensing element 130, wherein, if the temperature of the first side area 230 is higher, the resistance value of the first thermistor 153 is larger, the working voltage of the first heating film 110 is smaller, and the heating power of the first heating film 110 is smaller.
所述第二热敏电阻156与所述第二感温件140接触，并与所述第二加热膜120串联，用于根据所述第二感温件140传导的与所述第二侧面区域240对应的温度，对所述第二加热膜120的工作电压进行分压，其中，若所述第二侧面区域240的温度越低，则所述第二热敏电阻156的电阻值越小，所述第二加热膜120的工作电压越大，所述第二加热膜120的加热功率越大。The second thermistor 156 is in contact with the second temperature-sensing element 140 and is connected in series with the second heating film 120, and is used to divide the working voltage of the second heating film 120 according to the temperature corresponding to the second side area 240 conducted by the second temperature-sensing element 140, wherein, if the temperature of the second side area 240 is lower, the resistance value of the second thermistor 156 is smaller, the working voltage of the second heating film 120 is larger, and the heating power of the second heating film 120 is larger.
可选地，请参照图6，图6是本申请实施例提供的分压组件150的安装示意图之五。在本实施例的第五种实施方式中，所述分压组件150包括连接件157、第三膨胀结构158、第四膨胀结构159、第三滑动变阻器161及第四滑动变阻器162。Alternatively, please refer to Figure 6, which is a fifth installation diagram of the voltage dividing assembly 150 provided in the embodiment of the present application. In the fifth implementation of the present embodiment, the voltage dividing assembly 150 includes a connecting member 157, a third expansion structure 158, a fourth expansion structure 159, a third sliding resistor 161 and a fourth sliding resistor 162.
具体地，所述第三膨胀结构158与所述第一感温件130接触，并根据所述第一感温件130传导的温度改变结构体积。所述第四膨胀结构159与所述第二感温件140接触，并根据所述第二感温件140传导的温度改变结构体积。所述第三膨胀结构158与所述第四膨胀结构159相向设置，所述连接件157设置在所述第三膨胀结构158与所述第四膨胀结构159之间，并与所述第三膨胀结构158及所述第四膨胀结构159粘连，用于在所述第三膨胀结构158与所述第四膨胀结构159的作用下沿靠近所述第三膨胀结构158或所述第四膨胀结构159的方向移动。Specifically, the third expansion structure 158 contacts the first temperature sensing member 130, and changes the structural volume according to the temperature conducted by the first temperature sensing member 130. The fourth expansion structure 159 contacts the second temperature sensing member 140, and changes the structural volume according to the temperature conducted by the second temperature sensing member 140. The third expansion structure 158 and the fourth expansion structure 159 are arranged facing each other, and the connecting member 157 is arranged between the third expansion structure 158 and the fourth expansion structure 159, and adheres to the third expansion structure 158 and the fourth expansion structure 159, and is used to move in a direction close to the third expansion structure 158 or the fourth expansion structure 159 under the action of the third expansion structure 158 and the fourth expansion structure 159.
所述连接件157与所述第三滑动变阻器161的滑片固定连接，并与所述第四滑动变阻器162的滑片固定连接，用于在所述连接件157移动时带动所述第三滑动变阻器161上的滑片及所述第四滑动变阻器162上的滑片进行滑动，其中所述第三滑动变阻器161的电阻值与所述第四滑动变阻器162的电阻值负相关，所述第三滑动变阻器161的电阻值与所述第一侧面区域230和所述第二侧面区域240之间的温度差值正相关。The connecting member 157 is fixedly connected to the sliding piece of the third sliding rheostat 161 and to the sliding piece of the fourth sliding rheostat 162, and is used to drive the sliding piece on the third sliding rheostat 161 and the sliding piece on the fourth sliding rheostat 162 to slide when the connecting member 157 moves, wherein the resistance value of the third sliding rheostat 161 is negatively correlated with the resistance value of the fourth sliding rheostat 162, and the resistance value of the third sliding rheostat 161 is positively correlated with the temperature difference between the first side area 230 and the second side area 240.
所述第三滑动变阻器161与所述第一加热膜110串联，用于对所述第一加热膜110的工作电压进行分压，即若所述第三滑动变阻器161的电阻值越大，则所述第一加热膜110的工作电压越小，所述第一加热膜110的加热功率越小。所述第四滑动变阻器162与所述第二加热膜120串联，用于对所述第二加热膜120的工作电压进行分压，即若所述第四滑动变阻器162的电阻值越小，则所述第二加热膜120的工作电压越大，所述第二加热膜120的加热功率越大。The third sliding rheostat 161 is connected in series with the first heating film 110, and is used to divide the working voltage of the first heating film 110, that is, if the resistance value of the third sliding rheostat 161 is larger, the working voltage of the first heating film 110 is smaller, and the heating power of the first heating film 110 is smaller. The fourth sliding rheostat 162 is connected in series with the second heating film 120, and is used to divide the working voltage of the second heating film 120, that is, if the resistance value of the fourth sliding rheostat 162 is smaller, the working voltage of the second heating film 120 is larger, and the heating power of the second heating film 120 is larger.
其中，若所述第三膨胀结构158为随温度的增高发生膨胀并随温度的降低发生收缩的热敏结构，且所述第四膨胀结构159为随温度的增高发生膨胀并随温度的降低产生收缩的热敏结构，则当所述连接件157沿靠近所述第四膨胀结构159的方向移动时，表明所述第一侧面区域230和所述第二侧面区域240之间的温度差值增大，此时所述第三滑动变阻器161的电阻值增大，所述第四滑动变阻器162的电阻值减小，即第一加热膜110的加热功率变小，第二加热膜120的加热功率变大，而当所述连接件157沿靠近所述第三膨胀结构158的方向移动时，表明所述第一侧面区域230和所述第二侧面区域240之间的温度差值减小，此时所述第三滑动变阻器161的电阻值减小，所述第四滑动变阻器162的电阻值增大，即第一加热膜110的加热功率变大，第二加热膜120的加热功率变小。Among them, if the third expansion structure 158 is a thermosensitive structure that expands with increasing temperature and contracts with decreasing temperature, and the fourth expansion structure 159 is a thermosensitive structure that expands with increasing temperature and contracts with decreasing temperature, then when the connecting member 157 moves in a direction close to the fourth expansion structure 159, it indicates that the temperature difference between the first side area 230 and the second side area 240 increases, at this time, the resistance value of the third sliding rheostat 161 increases, and the resistance value of the fourth sliding rheostat 162 decreases, that is, the heating power of the first heating film 110 decreases, and the heating power of the second heating film 120 increases, and when the connecting member 157 moves in a direction close to the third expansion structure 158, it indicates that the temperature difference between the first side area 230 and the second side area 240 decreases, at this time, the resistance value of the third sliding rheostat 161 decreases, and the resistance value of the fourth sliding rheostat 162 increases, that is, the heating power of the first heating film 110 increases, and the heating power of the second heating film 120 decreases.
若所述第三膨胀结构158为随温度的增高发生收缩并随温度的降低发生膨胀的热敏结构，且所述第四膨胀结构159为随温度的增高发生收缩并随温度的降低产生膨胀的热敏结构，则当所述连接件157沿靠近所述第三膨胀结构158的方向移动时，表明所述第一侧面区域230和所述第二侧面区域240之间的温度差值增大，此时所述第三滑动变阻器161的电阻值增大，所述第四滑动变阻器162的电阻值减小，即第一加热膜110的加热功率变小，第二加热膜120的加热功率变大，而当所述连接件157沿靠近所述第四膨胀结构159的方向移动时，表明所述第一侧面区域230和所述第二侧面区域240之间的温度差值减小，此时所述第三滑动变阻器161的电阻值减小，所述第四滑动变阻器162的电阻值增大，即第一加热膜110的加热功率变大，第二加热膜120的加热功率变小。If the third expansion structure 158 is a thermosensitive structure that contracts as the temperature increases and expands as the temperature decreases, and the fourth expansion structure 159 is a thermosensitive structure that contracts as the temperature increases and expands as the temperature decreases, then when the connecting member 157 moves in a direction close to the third expansion structure 158, it indicates that the temperature difference between the first side area 230 and the second side area 240 increases, and at this time, the resistance value of the third sliding rheostat 161 increases, and the resistance value of the fourth sliding rheostat 162 decreases, that is, the heating power of the first heating film 110 decreases, and the heating power of the second heating film 120 increases. When the connecting member 157 moves in a direction close to the fourth expansion structure 159, it indicates that the temperature difference between the first side area 230 and the second side area 240 decreases, and at this time, the resistance value of the third sliding rheostat 161 decreases, and the resistance value of the fourth sliding rheostat 162 increases, that is, the heating power of the first heating film 110 increases, and the heating power of the second heating film 120 decreases.
在本申请实施例中，所述模组加热系统100通过图2、图3、图4、图5及图6所示的分压组件150中的任意一种，实现对电池模组200的不同侧面区域处的加热功率的调节操作，使两个侧面区域中的温度高的区域处的加热功率相较于温度低的区域处的加热功率更小，从而减小电池模组200的正极端部区域与负极端部区域之间的温差，并确保所述电池模组200的正极端部与负极端部的温度逐渐趋于一致，提高所述电池模组200的充放电性能，延长所述电池模组200的使用寿命。In the embodiment of the present application, the module heating system 100 realizes the adjustment operation of the heating power at different side areas of the battery module 200 through any one of the voltage divider components 150 shown in Figures 2, 3, 4, 5 and 6, so that the heating power at the high temperature area of the two side areas is smaller than the heating power at the low temperature area, thereby reducing the temperature difference between the positive end area and the negative end area of the battery module 200, and ensuring that the temperatures of the positive end and the negative end of the battery module 200 gradually tend to be consistent, thereby improving the charging and discharging performance of the battery module 200 and extending the service life of the battery module 200.
在本申请实施例中，所述第一感温件130与所述第二感温件140均为毛细管，用于确保所述第一感温件130可将所述第一侧面区域230的温度传导给所述分压组件150，确保所述第二感温件140可将所述第二侧面区域240的温度传导给所述分压组件150。In the embodiment of the present application, the first temperature sensing element 130 and the second temperature sensing element 140 are both capillaries, which are used to ensure that the first temperature sensing element 130 can transfer the temperature of the first side area 230 to the pressure dividing component 150, and ensure that the second temperature sensing element 140 can transfer the temperature of the second side area 240 to the pressure dividing component 150.
在本申请实施例中，所述第一加热膜110内的用于实现加热效果的加热体与所述第二加热膜120内的用于实现加热效果的加热体均为曲折状结构，其中每个加热膜中的加热体的曲折延伸方向与所述电池模组200内电芯的长度延伸方向垂直，用于在电芯发生膨胀现象时确保加热体能够相应地进行舒展运动，避免加热体发生断裂。In the embodiment of the present application, the heating body in the first heating film 110 for achieving the heating effect and the heating body in the second heating film 120 for achieving the heating effect are both zigzag structures, wherein the zigzag extension direction of the heating body in each heating film is perpendicular to the length extension direction of the battery cell in the battery module 200, which is used to ensure that the heating body can stretch accordingly when the battery cell expands, thereby avoiding breakage of the heating body.
本申请还提供一种动力汽车，所述动力汽车包括动力车体及上述的电池系统10，所述电池系统10与所述动力车体电性连接，用于向所述动力车体提供电能，确保所述动力车体能够正常行驶。The present application also provides a power vehicle, which includes a power vehicle body and the above-mentioned battery system 10, wherein the battery system 10 is electrically connected to the power vehicle body and is used to provide electrical energy to the power vehicle body to ensure that the power vehicle body can travel normally.
综上所述，在本申请实施例提供的一种模组加热系统、电池系统及动力汽车中，本申请通过第一感温件对电池模组的靠近正极端的第一侧面区域进行温度感知，通过第二感温件对该电池模组的靠近负极端的第二侧面区域进行温度感知，其中正极端与负极端相对设置，并由分压组件根据第一感温件传导的温度调整与第一侧面区域接触的第一加热膜的工作电压，由分压组件根据第二感温件传导的温度调整与第二侧面区域接触的第二加热膜的工作电压，使每个加热膜的工作电压与其接触的侧面区域的温度负相关，两个侧面区域中的温度高的区域处的加热功率相较于温度低的区域处的加热功率更小，从而减小电池模组的正极端部区域与负极端部区域之间的温差，使电池模组的正极端部与负极端部的温度趋于一致，提高电池模组的充放电性能，延长电池模组的使用寿命。In summary, in a module heating system, a battery system and a power vehicle provided in an embodiment of the present application, the present application senses the temperature of a first side area of the battery module close to the positive end through a first temperature sensing component, and senses the temperature of a second side area of the battery module close to the negative end through a second temperature sensing component, wherein the positive end and the negative end are arranged opposite to each other, and the voltage divider component adjusts the working voltage of the first heating film in contact with the first side area according to the temperature conducted by the first temperature sensing component, and the voltage divider component adjusts the working voltage of the second heating film in contact with the second side area according to the temperature conducted by the second temperature sensing component, so that the working voltage of each heating film is negatively correlated with the temperature of the side area it contacts, and the heating power at the high temperature area in the two side areas is smaller than the heating power at the low temperature area, thereby reducing the temperature difference between the positive end area and the negative end area of the battery module, making the temperatures of the positive end and the negative end of the battery module tend to be consistent, improving the charging and discharging performance of the battery module, and extending the service life of the battery module.
以上所述，仅为本申请的各种实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。The above are only various implementations of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864361.3ACN110474132B (en) | 2019-09-12 | 2019-09-12 | Module heating system, battery system and electric vehicle |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864361.3ACN110474132B (en) | 2019-09-12 | 2019-09-12 | Module heating system, battery system and electric vehicle |
| Publication Number | Publication Date |
|---|---|
| CN110474132A CN110474132A (en) | 2019-11-19 |
| CN110474132Btrue CN110474132B (en) | 2024-10-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910864361.3AActiveCN110474132B (en) | 2019-09-12 | 2019-09-12 | Module heating system, battery system and electric vehicle |
| Country | Link |
|---|---|
| CN (1) | CN110474132B (en) |
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