技术领域technical field
本实用新型属于乘用车动力电池领域，特别是涉及双箱体电池系统结构。The utility model belongs to the field of power batteries for passenger cars, in particular to a double-box battery system structure.
背景技术Background technique
随着各国对节能与环保的重视度越来越高，传统燃油车的电动化已成为汽车技术发展的主流方向。动力电池作为电动车的主要核心“三电”之一，占有非常重要的位置。电池系统在整车上的布置受制于布置空间限制，在现有技术中存在单箱体或多箱体之分。As countries pay more and more attention to energy conservation and environmental protection, the electrification of traditional fuel vehicles has become the mainstream direction of automotive technology development. As one of the main core "three electrics" of electric vehicles, power batteries occupy a very important position. The layout of the battery system on the vehicle is limited by the layout space, and there is a single box or multiple boxes in the prior art.
目前国内纯电动乘用车大部分动力电池采用单箱体方案，少数插电式车用动力电池采用双箱体方案，如图1所示，示出了现有技术中的一种双箱体电池系统结构。其中，在第一电池箱中包括有电池组A、总负继电器、总正继电器、预充继电器、预充电电阻、充电继电器、主保险丝、充电保险丝以及电池管理系统（Battery management system，BMS）主板，在第二电池箱中设置有电池组B和手动维修开关（Manual Service Disconnector，MSD），且在第一电池箱上设置有电机控制器高压连接器和车载充电机高压连接器，而在第一电池箱和第二电池箱之间通过箱间高压线束及连接器进行连接。At present, most power batteries of domestic pure electric passenger vehicles adopt a single-cabinet scheme, and a few plug-in vehicle power batteries adopt a double-cabinet scheme, as shown in Figure 1, which shows a double-cabinet scheme in the prior art Battery system structure. Among them, the first battery box includes a battery pack A, a total negative relay, a total positive relay, a pre-charging relay, a pre-charging resistor, a charging relay, a main fuse, a charging fuse, and a battery management system (Battery management system, BMS) motherboard , a battery pack B and a manual maintenance switch (Manual Service Disconnector, MSD) are set in the second battery box, and a motor controller high-voltage connector and a vehicle charger high-voltage connector are set on the first battery box. The first battery box and the second battery box are connected through inter-box high-voltage wire harnesses and connectors.
但是，现有的这种双箱体电池系统结构存在如下不足之处：由于电池系统分为两个电池箱，中间增加了高压连接器和线束。第一电池箱和第二电池箱分开运输时，虽然箱间高压连接器是处于断开状态， MSD也可手工断开，总负继电器默认状态是断开的。但是，由于箱间高压连接器一侧直接连接电池组A的正极，如果箱间高压连接器不小心短路时，则有触电风险；同时，由于箱间高压连接器的另一侧直接连接电池组B的负极，如果箱间高压连接器不小心短路时，则有触电风险；同理，如果第一电池箱与第二电池箱在安装过程中，如果箱间高压连接器短路，同样有触电风险。故现有的这种双箱电池系统在运输和安装过程中均存在安全性隐患。However, the existing double-box battery system structure has the following disadvantages: since the battery system is divided into two battery boxes, a high-voltage connector and a wiring harness are added in the middle. When the first battery box and the second battery box are transported separately, although the high-voltage connector between the boxes is disconnected, the MSD can also be disconnected manually, and the default state of the total negative relay is disconnected. However, since one side of the high-voltage connector between boxes is directly connected to the positive pole of battery pack A, if the high-voltage connector between boxes is accidentally short-circuited, there is a risk of electric shock; at the same time, since the other side of the high-voltage connector between boxes is directly connected to the battery pack If the negative pole of B is accidentally short-circuited between the high-voltage connectors between the boxes, there is a risk of electric shock; similarly, if the high-voltage connectors between the boxes are short-circuited during the installation process of the first battery box and the second battery box, there is also a risk of electric shock . Therefore, the existing double-box battery system has potential safety hazards during transportation and installation.
实用新型内容Utility model content
本实用新型所要解决的技术问题在于，提供一种双箱体电池系统结构，可以提高双箱体电池系统在独立运输和装车前的安全性。The technical problem to be solved by the utility model is to provide a double-box battery system structure, which can improve the safety of the double-box battery system before independent transportation and loading.
为了解决上述技术问题，本实用新型实施例的一方面提供一种双箱体电池系统结构，其包括有通过箱间高压线束及连接器连接的第一电池箱和第二电池箱，其中：In order to solve the above-mentioned technical problems, an aspect of the embodiment of the present invention provides a double-box battery system structure, which includes a first battery box and a second battery box connected by inter-box high-voltage wire harnesses and connectors, wherein:
第一电池箱中设置有第一电池组，在所述第一电池组的正极与箱间高压连接器第一连接端之间串接有第一手动维修开关，所述第一电池组的负极连接至总负继电器的第一端；所述箱间高压连接器第二连接端连接至总正继电器的第一端，所述总正继电器的第二端连接至主保险丝第一端，所述总负继电器的第二端与所述主保险丝的第二端连接至电机控制器高压连接器；The first battery box is provided with a first battery pack, and a first manual maintenance switch is connected in series between the positive pole of the first battery pack and the first connection end of the inter-box high-voltage connector, and the negative pole of the first battery pack connected to the first end of the total negative relay; the second connection end of the inter-box high voltage connector is connected to the first end of the total positive relay, the second end of the total positive relay is connected to the first end of the main fuse, the The second end of the total negative relay and the second end of the main fuse are connected to the motor controller high voltage connector;
第二电池箱中设置有第二电池组，所述第二电池组的负极与所述箱间高压连接器第三连接端之间串接有中间继电器，所述第二电池组的正极与所述箱间高压连接器第四连接端之间串接有第二手动维修开关；The second battery box is provided with a second battery pack, an intermediate relay is connected in series between the negative pole of the second battery pack and the third connection end of the inter-box high-voltage connector, and the positive pole of the second battery pack is connected to the third connection end of the inter-box high-voltage connector. A second manual maintenance switch is connected in series between the fourth connection end of the inter-box high-voltage connector;
其中，所述箱间高压连接器第一连接端与第三连接端之间存在连接关系，所述箱间高压连接器第二连接端与第四连接端之间存在连接关系。Wherein, there is a connection relationship between the first connection end and the third connection end of the inter-box high-voltage connector, and there is a connection relationship between the second connection end and the fourth connection end of the inter-box high-voltage connector.
其中，所述第一电池箱中进一步包括：Wherein, the first battery box further includes:
相互串接的预充电继电器和预充电电阻，连接在所述箱间高压连接器第二连接端与所述主保险丝第一端之间。The pre-charging relay and the pre-charging resistor connected in series are connected between the second connection end of the inter-box high-voltage connector and the first end of the main fuse.
其中，所述第一电池箱中进一步包括：Wherein, the first battery box further includes:
充电继电器，其第一端与所述箱间高压连接器第二连接端相连接，其第二端与充电保险丝第一端相连接；A charging relay whose first end is connected to the second connecting end of the inter-box high-voltage connector, and whose second end is connected to the first end of the charging fuse;
车载充电机高压连接器，其分别与所述充电保险丝第二端和所述总负继电器第二端相连接。The high-voltage connector of the on-board charger is respectively connected to the second end of the charging fuse and the second end of the total negative relay.
其中，所述第一电池组和第二电池组均由多个电芯串并联而成。Wherein, both the first battery pack and the second battery pack are formed by a plurality of battery cells connected in series and parallel.
其中，所述第一电池箱中进一步包括有电池管理系统主板。Wherein, the first battery box further includes a main board of a battery management system.
实施本实用新型，具有如下的有益效果：Implementing the utility model has the following beneficial effects:
本实用新型的通过在分别在第一电池箱的第一电池组两侧分别设置第一手动维修开关和总负继电器，以及在第二电池箱的第二电池组两侧分别设置第二手动维修开关和中间继电器，在第一电池箱和第二电池箱装车或分开运输时可以将第一手动维修开关和第二手动维修开关可以通过手动断开，以及总负电器和中间继电器设置成处于常开状态，从而使第一电池箱和第二电池箱的高压连接器总正和总负均不带高压电，提升电池系统安全性，特别是可以提高双箱体电池系统在运输过程中和装车前的安全性。The utility model sets the first manual maintenance switch and the total negative relay on both sides of the first battery group of the first battery box respectively, and sets the second manual maintenance switch on both sides of the second battery group of the second battery box respectively. Maintenance switch and intermediate relay, when the first battery box and the second battery box are loaded or transported separately, the first manual maintenance switch and the second manual maintenance switch can be disconnected manually, and the total negative electrical appliance and intermediate relay are set In this way, the high-voltage connectors of the first battery box and the second battery box are always in the normal open state, so that the total positive and total negative of the high-voltage connectors of the first battery box and the second battery box are not charged with high voltage, which improves the safety of the battery system, and especially improves the safety of the double-box battery system during transportation. Neutralize the safety before loading.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.
图1是现有的一种双箱体电池系统结构示意图；Fig. 1 is a schematic structural diagram of an existing double-box battery system;
图2是本实用新型提供的一种双箱体电池系统结构的一个实施例的示意图。Fig. 2 is a schematic diagram of an embodiment of a double-box battery system structure provided by the present invention.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
参见图2所示，示出了本实用新型提供的一种双箱体电池系统结构的一个实施例的示意图。在该实施例中，该双箱体电池系统结构包括有通过箱间高压线束及连接器连接的第一电池箱和第二电池箱，其中：Referring to FIG. 2 , it shows a schematic diagram of an embodiment of a double-box battery system structure provided by the present invention. In this embodiment, the double-box battery system structure includes a first battery box and a second battery box connected by inter-box high-voltage wire harnesses and connectors, wherein:
第一电池箱中设置有第一电池组（图中以电池组A标示），在第一电池组的正极与箱间高压连接器第一连接端（a端）之间串接有第一手动维修开关（MSD-A），第一电池组的负极连接至总负继电器的第一端；箱间高压连接器第二连接端（b端）连接至总正继电器的第一端，该总正继电器第二端连接至主保险丝的第一端，总负继电器的第二端与主保险丝的第二端连接至电机控制器高压连接器；The first battery box is provided with a first battery pack (marked by battery pack A in the figure), and a first manual Maintenance switch (MSD-A), the negative pole of the first battery pack is connected to the first terminal of the total negative relay; the second connection terminal (b terminal) of the inter-box high-voltage connector is connected to the first terminal of the total positive The second end of the relay is connected to the first end of the main fuse, and the second end of the total negative relay and the second end of the main fuse are connected to the motor controller high-voltage connector;
同时在该第一电池箱中进一步包括：At the same time, the first battery box further includes:
相互串接的预充电继电器和预充电电阻，该两者串接在箱间高压连接器第二连接端与主保险丝第一端之间；A pre-charging relay and a pre-charging resistor connected in series, the two are connected in series between the second connection end of the inter-box high-voltage connector and the first end of the main fuse;
充电继电器，其第一端与箱间高压连接器第二连接端相连接，其第二端与充电保险丝第一端相连接；A charging relay, the first end of which is connected to the second connecting end of the inter-box high-voltage connector, and the second end is connected to the first end of the charging fuse;
车载充电机高压连接器，其分别与充电保险丝第二端和总负继电器第二端相连接。The high-voltage connector of the on-board charger is connected to the second terminal of the charging fuse and the second terminal of the total negative relay respectively.
另外，第二电池箱中设置有第二电池组（图中以电池组B标示），第二电池组的负极与箱间高压连接器第三连接端之间串接有中间继电器，第二电池组的正极与述箱间高压连接器第四连接端之间串接有第二手动维修开关（MSD-B）；In addition, the second battery box is provided with a second battery pack (marked by battery pack B in the figure), and an intermediate relay is connected in series between the negative pole of the second battery pack and the third connection end of the high-voltage connector between the boxes. A second manual maintenance switch (MSD-B) is connected in series between the positive pole of the group and the fourth connection end of the inter-box high-voltage connector;
其中，箱间高压连接器第一连接端与第三连接端之间存在连接关系，即两者通过插接实现电连接；箱间高压连接器第二连接端与第四连接端之间存在连接关系，即两者通过插接实现电连接。Among them, there is a connection relationship between the first connection end and the third connection end of the inter-box high-voltage connector, that is, the two are electrically connected by plugging; there is a connection between the second connection end and the fourth connection end of the inter-box high-voltage connector. Relationship, that is, the two are electrically connected by plugging.
其中，第一电池组和第二电池组均由多个电芯串并联而成。另外，第一电池箱中进一步包括有电池管理系统主板（BMS主板）。在一个实施例中，中间继电器和BMS主板存在如下的关系，当BMS主板唤映醒后该中间继电器闭合，当BMS主板休眠后该中间继电器断开。在一个具体的应用场合，第一电池箱和第二电池箱可以分开运输，此时箱间高压连接器处于断开状态， 而第一手动维修开关和第二手动维修开关均可以实现手工断开，而中间继电器和总负继电器默认状态是断开的，这样第一电池箱和第二电池箱的总正和总负均不带高压电，不会产生诸如漏电的风险，从而可以提升电池系统运输过程或装车（安装在电动车中）前的安全性。Wherein, both the first battery pack and the second battery pack are formed by a plurality of battery cells connected in series and parallel. In addition, the first battery box further includes a battery management system mainboard (BMS mainboard). In one embodiment, the relationship between the intermediate relay and the BMS main board is as follows. When the BMS main board wakes up, the intermediate relay is closed, and when the BMS main board sleeps, the intermediate relay is disconnected. In a specific application, the first battery box and the second battery box can be transported separately. At this time, the high-voltage connector between the boxes is disconnected, and both the first manual maintenance switch and the second manual maintenance switch can be manually disconnected. Open, and the default state of the intermediate relay and the total negative relay is disconnected, so that the total positive and total negative of the first battery box and the second battery box do not carry high voltage, and there will be no risk such as leakage, so that the battery can be upgraded Security of the system during transport or prior to loading (installation in electric vehicles).
当第一电池箱和第二电池箱安装在电动车中，可以插上箱间高压连接器，手动设置好第一手动维修开关和第二手动维修开关，当BMS主板唤醒后，中间继电器即闭合，此时BMS主板可检测到总电压，后续电路运行时按照闭合总负继电器、闭合预充继电器、闭合总正继电器、断开预充继电器的顺序进行操作，这样可以使高压上电成功，从而提供电流给相关高压负载（如电机等）。When the first battery box and the second battery box are installed in the electric vehicle, you can plug in the high-voltage connector between the boxes, and manually set the first manual maintenance switch and the second manual maintenance switch. When the BMS main board wakes up, the intermediate relay will Closed, at this time the BMS main board can detect the total voltage, and the follow-up circuit operates in the order of closing the total negative relay, closing the pre-charging relay, closing the total positive relay, and disconnecting the pre-charging relay, so that the high voltage can be powered on successfully. Thereby providing current to relevant high-voltage loads (such as motors, etc.).
实施本实用新型，具有如下的有益效果：Implementing the utility model has the following beneficial effects:
本实用新型的通过在分别在第一电池箱的第一电池组两侧分别设置第一手动维修开关和总负继电器，以及在第二电池箱的第二电池组两侧分别设置第二手动维修开关和中间继电器，在第一电池箱和第二电池箱装车或分开运输时可以将第一手动维修开关和第二手动维修开关可以通过手动断开，以及总负电器和中间继电器设置成处于常开状态，从而使第一电池箱和第二电池箱的高压连接器总正和总负均不带高压电，提升电池系统安全性，特别是可以提高双箱体电池系统在运输过程中和装车前的安全性。The utility model sets the first manual maintenance switch and the total negative relay on both sides of the first battery group of the first battery box respectively, and sets the second manual maintenance switch on both sides of the second battery group of the second battery box respectively. Maintenance switch and intermediate relay, when the first battery box and the second battery box are loaded or transported separately, the first manual maintenance switch and the second manual maintenance switch can be disconnected manually, and the total negative electrical appliance and intermediate relay are set In this way, the high-voltage connectors of the first battery box and the second battery box are always in the normal open state, so that the total positive and total negative of the high-voltage connectors of the first battery box and the second battery box are not charged with high voltage, which improves the safety of the battery system, and especially improves the safety of the double-box battery system during transportation. Neutralize the safety before loading.
以上所揭露的仅为本实用新型一种较佳实施例而已，当然不能以此来限定本实用新型之权利范围，因此依本实用新型权利要求所作的等同变化，仍属本实用新型所涵盖的范围。What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot limit the scope of rights of the utility model. Therefore, the equivalent changes made according to the claims of the utility model are still covered by the utility model. scope.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480392.1UCN204046238U (en) | 2014-08-25 | 2014-08-25 | A kind of two box type battery system configuration |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480392.1UCN204046238U (en) | 2014-08-25 | 2014-08-25 | A kind of two box type battery system configuration |
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| CN204046238Utrue CN204046238U (en) | 2014-12-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420480392.1UExpired - LifetimeCN204046238U (en) | 2014-08-25 | 2014-08-25 | A kind of two box type battery system configuration |
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| CN (1) | CN204046238U (en) |
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| TWI787733B (en)* | 2021-02-09 | 2022-12-21 | 華碩電腦股份有限公司 | Electronic system |
| CN116545073A (en)* | 2023-06-29 | 2023-08-04 | 广汽埃安新能源汽车股份有限公司 | Battery safety protection circuit and control method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI787733B (en)* | 2021-02-09 | 2022-12-21 | 華碩電腦股份有限公司 | Electronic system |
| US12176739B2 (en) | 2021-02-09 | 2024-12-24 | Asustek Computer Inc. | Electronic system |
| CN116545073A (en)* | 2023-06-29 | 2023-08-04 | 广汽埃安新能源汽车股份有限公司 | Battery safety protection circuit and control method thereof |
| CN116545073B (en)* | 2023-06-29 | 2024-03-26 | 广汽埃安新能源汽车股份有限公司 | Battery safety protection circuit and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information | Inventor after:Wang Qingquan Inventor after:Wang Jun Inventor after:Lai Jijian Inventor after:Xiao Sha Inventor before:Wang Qingquan Inventor before:Wang Jun Inventor before:Lai Jijian Inventor before:Xiao Sha | |
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20220104 Address after:511400 No.36 Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after:GAC AION New Energy Vehicle Co.,Ltd. Address before:510000 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before:GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. | |
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term | Granted publication date:20141224 |