CN107048993B - Pressure cooker - Google Patents
Pressure cookerDownload PDFInfo
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- CN107048993B CN107048993BCN201710352593.1ACN201710352593ACN107048993BCN 107048993 BCN107048993 BCN 107048993BCN 201710352593 ACN201710352593 ACN 201710352593ACN 107048993 BCN107048993 BCN 107048993B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及厨房电器技术领域，具体涉及一种压力锅。The invention relates to the technical field of kitchen appliances, in particular to a pressure cooker.
背景技术Background technique
电压力锅因其可进行高压烹饪，且具有烹饪效果好、节能、高效等优点，已成为了厨房的必备电器之一。The electric pressure cooker has become one of the must-have appliances in the kitchen because it can be used for high-pressure cooking, and has the advantages of good cooking effect, energy saving and high efficiency.
电压力锅的工作原理是利用限压阀来控制锅内压力，从而达到调节压力以及保护的作用。The working principle of the electric pressure cooker is to use the pressure limiting valve to control the pressure in the cooker, so as to achieve the functions of pressure regulation and protection.
控制限压阀目前有两种方案，第一种为用户用手拨动限压阀，使限压阀抬起，锅内气体从排气管排出。此排气方法安全隐患较大，用户的手直接与限压阀接触，排气管排出的高温蒸汽极易烫伤用户。第二种为通过电磁阀来控制限压阀，通过软件程序或按键控制电磁阀抬起限压阀来释放锅内压力。此方案较第一种安全性有很大提升，用户在主动排气时手已远离排气管。但两种方案并无针对用户误操作限压阀的保护设计，两种方案中限压阀均可被随意拨动，若用户在压力锅运行时误操作限压阀使限压阀抬起则排气管会瞬间喷出高温蒸汽烫伤用户。另外，压力锅还没有检测限压阀位置是否正确的方法，当用户漏装限压阀或限压阀位置不正确时会导致压力锅锅内压力异常。There are currently two options for controlling the pressure-limiting valve. The first is for the user to manually toggle the pressure-limiting valve to lift the pressure-limiting valve, and the gas in the pot is discharged from the exhaust pipe. This exhaust method has a great potential safety hazard. The user's hand is directly in contact with the pressure limiting valve, and the high-temperature steam discharged from the exhaust pipe can easily scald the user. The second is to control the pressure limiting valve through a solenoid valve, and control the solenoid valve to lift the pressure limiting valve through a software program or a button to release the pressure in the pot. Compared with the first one, this scheme has a great improvement in safety, and the user has kept his hands away from the exhaust pipe when actively exhausting. However, the two schemes have no protection design against the user's misoperation of the pressure-limiting valve. In both schemes, the pressure-limiting valve can be toggled at will. The trachea will instantly spray high-temperature steam and scald the user. In addition, the pressure cooker does not yet have a method for detecting whether the pressure limiting valve is in the correct position. When the user misses installing the pressure limiting valve or the pressure limiting valve position is incorrect, the pressure in the pressure cooker will be abnormal.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本发明实施例提供了一种压力锅，以解决现有技术中对压力锅的限压阀进行了误操作，导致安全隐患的问题。In view of this, the embodiments of the present invention provide a pressure cooker to solve the problem that the pressure limiting valve of the pressure cooker is misoperated in the prior art, resulting in potential safety hazards.
为此，本发明实施例提供了如下技术方案：To this end, the embodiments of the present invention provide the following technical solutions:
本发明提供了一种压力锅，包括盖体、设置在所述盖体上的排气管、限压阀，其中，所述限压阀套设在所述排气管的排气口处并用于对所述排气口进行密封或解除密封，所述压力锅还包括：限位装置，用于吸合所述限压阀或者断开与所述限压阀的吸合；控制器，根据所述压力锅当前的工作参数控制所述限位装置吸合所述限压阀或者断开与所述限压阀的吸合。The present invention provides a pressure cooker, comprising a cover body, an exhaust pipe arranged on the cover body, and a pressure limiting valve, wherein the pressure limiting valve is sleeved at the exhaust port of the exhaust pipe and used for To seal or unseal the exhaust port, the pressure cooker further includes: a limit device for pulling in the pressure limiting valve or disconnecting the pressure limiting valve; the controller, according to the The current working parameters of the pressure cooker control the limiting device to close the pressure limiting valve or disconnect the pressure limiting valve.
可选地，所述限位装置是电磁装置，所述电磁装置设置于所述限压阀的下方。Optionally, the limiting device is an electromagnetic device, and the electromagnetic device is disposed below the pressure limiting valve.
可选地，所述工作参数包括气压和/或温度；所述压力锅还包括：气压传感器，用于获取所述压力锅内部的气压；和/或，感温器件，用于获取所述压力锅内部的温度。Optionally, the working parameters include air pressure and/or temperature; the pressure cooker further includes: an air pressure sensor for obtaining the air pressure inside the pressure cooker; and/or a temperature sensing device for obtaining the pressure inside the pressure cooker temperature.
可选地，所述控制器还用于从所述气压传感器获取所述气压，在所述气压小于第一预定阈值时，控制所述限位装置吸合所述限压阀，在所述气压大于或者等于所述第一预定阈值时，控制所述限位装置断开与所述限压阀的吸合；或者，在所述温度小于第二预定阈值时，控制所述限位装置吸合所述限压阀，在所述温度大于或者等于所述第二预定阈值时，控制所述限位装置断开与所述限压阀的吸合。Optionally, the controller is further configured to acquire the air pressure from the air pressure sensor, and when the air pressure is less than a first predetermined threshold, control the limiting device to close the pressure limiting valve, and when the air pressure is lower than a first predetermined threshold When the temperature is greater than or equal to the first predetermined threshold, the limiting device is controlled to disconnect from the pressure limiting valve; or, when the temperature is less than the second predetermined threshold, the limiting device is controlled to be closed The pressure limiting valve, when the temperature is greater than or equal to the second predetermined threshold, controls the limiting device to disconnect from the pressure limiting valve.
可选地，在所述压力锅是手动排气式的压力锅的情况下，所述工作参数指示已完成工作时，所述控制器用于控制所述限位装置断开与所述限压阀的吸合。Optionally, when the pressure cooker is a manually vented pressure cooker, when the working parameter indicates that the work has been completed, the controller is configured to control the limiting device to disconnect the suction from the pressure limiting valve. combine.
可选地，在所述压力锅是利用电磁阀控制限压阀排气的压力锅时，所述控制器用于在所述电磁阀启动之前，控制所述限位装置断开与所述限压阀的吸合。Optionally, when the pressure cooker is a pressure cooker that uses a solenoid valve to control the exhaust of the pressure limiting valve, the controller is configured to control the limiting device to disconnect the pressure limiting valve before the solenoid valve is activated. suck.
可选地，还包括：压力传感器，用于获取所述限位装置和所述限压阀之间的压力；所述控制器还用于根据所述压力判断所述限位装置与所述限压阀之间的吸合程度。Optionally, it further includes: a pressure sensor for acquiring the pressure between the limiting device and the pressure limiting valve; the controller is further configured to determine the relationship between the limiting device and the limiting valve according to the pressure The degree of pull-in between the pressure valves.
可选地，还包括：报警器，用于从所述控制器接收报警信号，根据所述报警信号进行报警处理；其中，所述控制器在所述限位装置与所述限压阀之间未完全吸合时生成所述报警信号。Optionally, it also includes: an alarm device for receiving an alarm signal from the controller, and performing alarm processing according to the alarm signal; wherein the controller is between the limiting device and the pressure limiting valve The alarm signal is generated when the pull-in is not complete.
本发明实施例技术方案，具有如下优点：The technical solution of the embodiment of the present invention has the following advantages:
本发明实施例提供了一种压力锅，包括盖体、设置在盖体上的排气管、限压阀，其中，限压阀套设在排气管的排气口处并用于对排气口进行密封或解除密封，压力锅还包括：限位装置，用于吸合限压阀或者断开与限压阀的吸合，例如该限位装置可以是电磁装置；控制器，根据压力锅当前的工作参数控制限位装置吸合限压阀或者断开与限压阀的吸合。当压力锅在运行过程中时限位装置会将限压阀牢牢吸合，防止限压阀被随意拨动，当控制器判定压力锅需要排气时需先将限位装置断开然后再开通电磁阀或由用户手动排气。解决了现有技术中对压力锅的限压阀进行了误操作，导致安全隐患的问题，从而提升了压力锅的安全性，在压力锅运行过程中不会因为用户的误操作造成烫伤。An embodiment of the present invention provides a pressure cooker, comprising a cover body, an exhaust pipe disposed on the cover body, and a pressure limiting valve, wherein the pressure limiting valve is sleeved at the exhaust port of the exhaust pipe and used to control the exhaust port For sealing or unsealing, the pressure cooker also includes: a limit device for pulling in the pressure limiting valve or disconnecting the pressure limiting valve, for example, the limit device can be an electromagnetic device; a controller, according to the current work of the pressure cooker The parameter controls the limit device to close the pressure limiting valve or disconnect it from the pressure limiting valve. When the pressure cooker is running, the limit device will firmly close the pressure limiting valve to prevent the pressure limiting valve from being toggled at will. When the controller determines that the pressure cooker needs to be vented, the limit device should be disconnected first and then the solenoid valve will be turned on. Or manually vented by the user. The problem that the pressure limiting valve of the pressure cooker is mis-operated in the prior art is solved, which leads to a potential safety hazard, thereby improving the safety of the pressure cooker, and the user's misoperation will not cause burns during the operation of the pressure cooker.
本发明实施例提供的一种压力锅，包括：压力传感器，用于获取限位装置和限压阀之间的压力；控制器还用于根据压力判断所述限位装置与限压阀之间的吸合程度，在所述限位装置与限压阀之间未完全吸合时生成报警信号，并将报警信号发送至报警器，由报警器进行报警，提示用户想使压力锅开始运行时必须经电磁装置检测限压阀位置正确才可正常运行。A pressure cooker provided by an embodiment of the present invention includes: a pressure sensor for acquiring the pressure between a limit device and a pressure limiting valve; a controller is further configured to judge the pressure between the limit device and the pressure limiting valve according to the pressure The degree of pull-in, when the limit device and the pressure-limiting valve are not completely closed, an alarm signal is generated, and the alarm signal is sent to the alarm, and the alarm will alarm, prompting the user to start the pressure cooker. The electromagnetic device detects the correct position of the pressure limiting valve before normal operation.
附图说明Description of drawings
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式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，下面描述中的附图是本发明的一些实施方式，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的附图。In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.
图1是根据本发明实施例的压力锅的结构示意图；1 is a schematic structural diagram of a pressure cooker according to an embodiment of the present invention;
图2是根据本发明实施例的限压阀误操作保护流程图；FIG. 2 is a flow chart of misoperation protection of a pressure limiting valve according to an embodiment of the present invention;
图3是根据本发明实施例的限压阀位置判断流程图。FIG. 3 is a flow chart of determining the position of the pressure limiting valve according to an embodiment of the present invention.
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域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，都属于本发明保护的范围。In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
在本实施例中提供了一种压力锅，图1是根据本发明实施例的压力锅的结构示意图，如图1所示，该压力锅，包括盖体(1)、设置在盖体(1)上的排气管(2)、限压阀(3)、限位装置(4)和控制器，其中，该控制器可以位于该压力锅的外表面，通过有线或者无线方式连接至限位装置(4)，也可以位于压力锅的远端，通过无线方式连接至限位装置(4)，限压阀(3)套设在排气管(2)的排气口(201)处并用于对该排气口(201)进行密封或解除密封，限位装置(4)还用于吸合限压阀(3)或者断开与限压阀(3)的吸合，控制器根据压力锅当前的工作参数控制限位装置(4)吸合限压阀(3)或者断开与限压阀(3)的吸合。In this embodiment, a pressure cooker is provided. FIG. 1 is a schematic structural diagram of a pressure cooker according to an embodiment of the present invention. As shown in FIG. 1 , the pressure cooker includes a cover body (1) and a pressure cooker provided on the cover body (1). An exhaust pipe (2), a pressure limiting valve (3), a limiting device (4) and a controller, wherein the controller may be located on the outer surface of the pressure cooker and connected to the limiting device (4) by wire or wirelessly , can also be located at the far end of the pressure cooker, connected to the limiting device (4) wirelessly, and the pressure limiting valve (3) is sleeved at the exhaust port (201) of the exhaust pipe (2) and used to exhaust the The port (201) is sealed or unsealed, and the limit device (4) is also used to close the pressure limiting valve (3) or disconnect it from the pressure limiting valve (3). The controller controls the current working parameters of the pressure cooker. The limiting device (4) closes the pressure limiting valve (3) or disconnects the pressure limiting valve (3).
通过上述进一步包括限位装置和控制器的压力锅，由控制器根据压力锅内的工作参数控制限位装置吸合限压阀或者断开与限压阀的吸合，相比于现有技术中压力锅的限压阀可以被随意波动，在压力锅运行过程中可能会因为用户的误操作造成烫伤，本实施例中的压力锅，在限压阀下增加一个限位装置，当压力锅在运行过程中时限位装置会将限压阀牢牢吸合，防止限压阀被随意拨动，当控制器判定压力锅需要排气时需先将限位装置断开然后再开通电磁阀或由用户手动排气，解决了现有技术中对压力锅的限压阀进行了误操作，导致安全隐患的问题，从而提升了压力锅的安全性，在压力锅运行过程中不会因为用户的误操作造成烫伤。Through the above-mentioned pressure cooker further comprising a limiting device and a controller, the controller controls the limiting device to close the pressure-limiting valve or disconnect the pressure-limiting valve according to the working parameters in the pressure cooker, compared with the pressure cooker in the prior art The pressure-limiting valve can be fluctuated at will, which may cause burns due to user's misoperation during the operation of the pressure cooker. In the pressure cooker in this embodiment, a limit device is added under the pressure-limiting valve. When the pressure cooker is running, the limit is The device will firmly close the pressure-limiting valve to prevent the pressure-limiting valve from being toggled at will. When the controller determines that the pressure cooker needs to be vented, it must first disconnect the limiting device and then turn on the solenoid valve or manually ventilate by the user. This solves the problem that the pressure limiting valve of the pressure cooker is mis-operated in the prior art, resulting in potential safety hazards, thereby improving the safety of the pressure cooker, and the user's misoperation will not cause burns during the operation of the pressure cooker.
上述限位装置的主要作用在于吸合限压阀或者断开与限压阀的吸合，从而使得限压阀不被随意拨动，能在一定条件下吸合限压阀，并在另一定条件下断开与限压阀的吸合的器件都可以作为上述限位装置，在一个可选实施例中，上述限位装置可以是电磁装置，电磁装置设置于限压阀的下方，电磁装置磁力的大小、有无可以由电流控制，进而可以根据压力锅限压阀的磁性金属的含量调节电流的大小及方向来控制电磁装置与限位装置的吸合与断开吸合。The main function of the above limiting device is to close the pressure-limiting valve or disconnect the pressure-limiting valve, so that the pressure-limiting valve will not be moved at will, and it can pull in the pressure-limiting valve under certain conditions, and at another certain time. Any device that is disconnected from the pressure-limiting valve under certain conditions can be used as the limiting device. In an optional embodiment, the limiting device can be an electromagnetic device. The electromagnetic device is arranged below the pressure-limiting valve. The magnitude and presence of the magnetic force can be controlled by the current, and then the magnitude and direction of the current can be adjusted according to the content of the magnetic metal in the pressure limiting valve of the pressure cooker to control the attraction and disconnection of the electromagnetic device and the limiting device.
在上述工作参数为气压时，压力锅还包括用于获取压力锅内部气压的气压传感器，在气压传感器采集到的气压小于第一预定阈值时(该第一预定阈值可以根据实际情况灵活调整)，则此时压力锅不需要排气，控制器控制限位装置吸合限压阀，在气压传感器采集到的气压大于或者等于该第一预定阈值时，则此时判断压力锅需要排气，控制器控制限位装置断开与该限压阀的吸合。When the above working parameter is air pressure, the pressure cooker further includes an air pressure sensor for obtaining the air pressure inside the pressure cooker. When the air pressure collected by the air pressure sensor is less than the first predetermined threshold (the first predetermined threshold can be flexibly adjusted according to the actual situation), then this When the pressure cooker does not need to be vented, the controller controls the limit device to close the pressure limiting valve. When the air pressure collected by the air pressure sensor is greater than or equal to the first predetermined threshold, it is judged that the pressure cooker needs to be vented, and the controller controls the limit The device disconnects the suction from the pressure limiting valve.
电压力锅在工作过程中的压力由压力开关以及感温包共同监测，当锅内压力到达设定值时首先压力开关会断开，软件检测到压力开关断开时继电器就相应断开停止加热。若压力开关失效时，则通过感温包来判断，当锅内温度达到设定的保护值时则继电器会停止加热。因此，在上述工作参数为温度时，压力锅还包括用于获取压力锅内部温度的感温器件，在感温器件采集到的温度小于第二预定阈值时(该第二预定阈值可以根据实际情况灵活调整)，则此时判断压力锅不需要排气，控制器控制限位装置吸合该限压阀，在感温器件采集到的温度大于或者等于第二预定阈值时，则此时判断压力锅需要排气，控制器控制限位装置断开与该限压阀的吸合。The pressure of the electric pressure cooker in the working process is monitored by the pressure switch and the temperature sensor. When the pressure in the cooker reaches the set value, the pressure switch will be disconnected first. When the software detects that the pressure switch is disconnected, the relay will be disconnected accordingly to stop heating. If the pressure switch fails, it will be judged by the temperature sensor. When the temperature in the pot reaches the set protection value, the relay will stop heating. Therefore, when the above working parameter is temperature, the pressure cooker further includes a temperature sensing device for acquiring the internal temperature of the pressure cooker. When the temperature collected by the temperature sensing device is less than the second predetermined threshold (the second predetermined threshold can be flexibly adjusted according to the actual situation) ), then it is judged that the pressure cooker does not need to be vented, and the controller controls the limiting device to close the pressure limiting valve. When the temperature collected by the temperature sensing device is greater than or equal to the second predetermined threshold, then it is judged that the pressure cooker needs venting. , the controller controls the limit device to disconnect the suction with the pressure limiting valve.
对于手动排气式的电压力锅来说，压力锅在整个工作过程中均无排气的需要，待压力锅工作完成后才需用户手动排气。因此电磁装置在压力锅开始工作时吸合限压阀，工作完成即压力锅煮饭或者煲汤的程序全部运行完成后再抬起限压阀即可达到保护作用又未影响压力锅正常程序。对于利用电磁阀控制限压阀排气的压力锅来说，在压力锅工作过程中会有多次排气的现象，因此需要控制器在判定电磁阀动作前需先断开电磁装置，使限压阀能正常排气。限压阀误操作保护的具体流程步骤如图2所示。For a manually vented electric pressure cooker, the pressure cooker does not need venting during the entire working process, and the user does not need to manually ventilate the pressure cooker until the work is completed. Therefore, the electromagnetic device closes the pressure limiting valve when the pressure cooker starts to work. After the work is completed, that is, the pressure cooker cooking or soup cooking program is completed, and then the pressure limiting valve is lifted to achieve the protective effect without affecting the normal program of the pressure cooker. For the pressure cooker that uses the solenoid valve to control the exhaust of the pressure limiting valve, there will be multiple exhausts during the working process of the pressure cooker. Therefore, the controller needs to disconnect the electromagnetic device before judging the action of the solenoid valve, so that the pressure limiting valve Normal exhaust. The specific process steps of the misoperation protection of the pressure limiting valve are shown in Figure 2.
限压阀最重要的作用是压力锅过压的最后一道保护，当压力开关以及感温包均失效时，而恰巧继电器又一直保持吸合持续加热时则锅内的高压会顶起限压阀排气，来保证压力锅不会因过压而发生爆炸。因此控制器要严格设定好电磁装置的吸合条件，既可保证限压阀不会被儿童轻易拨动，又可保证在压力锅控制器失效时可被压力顶起排气。因此，在一个可选实施例中，还包括用于获取限位装置和限压阀之间的压力，控制器根据该压力判断限位装置与限压阀之间的吸合程度，从而控制器可以严格设定电流大小，电流大小可以根据具体的电磁装置参数来计算，对于电磁装置来说电流越大，吸合力越大，电流越小吸合力越小，保证吸合应力不能过大，避免因极端情况压力锅无法排气而爆炸。The most important function of the pressure limiting valve is the last protection of the overpressure of the pressure cooker. When the pressure switch and the temperature sensor fail, and the relay keeps closing and heating continuously, the high pressure in the cooker will lift the pressure limiting valve row. To ensure that the pressure cooker will not explode due to overpressure. Therefore, the controller must strictly set the suction conditions of the electromagnetic device, which can not only ensure that the pressure limiting valve will not be easily toggled by children, but also ensure that the pressure cooker controller can be pushed up and exhausted when the pressure cooker controller fails. Therefore, in an optional embodiment, it also includes a method for acquiring the pressure between the limit device and the pressure limiting valve, and the controller judges the degree of suction between the limit device and the pressure limiting valve according to the pressure, so that the controller The current size can be strictly set, and the current size can be calculated according to the specific electromagnetic device parameters. For the electromagnetic device, the larger the current, the greater the pull-in force, and the smaller the current, the smaller the pull-in force, to ensure that the pull-in stress cannot be too large. Avoid In extreme cases, the pressure cooker cannot be vented and exploded.
当用户想使压力锅开始运行时必须经电磁装置检测限压阀位置正确才可正常运行，因此，在一个可选实施例中，可以用电磁装置来检测限压阀是否正确安装，具体地，控制器根据限位装置和限压阀之间的压力判断限位装置与限压阀之间的吸合程度，从而可以对限压阀位置是否异常作出判断，在压力锅刚开始工作时，控制器判断限位装置与限压阀之间未完全吸合，说明限压阀位置异常，此时生成报警信号，并将生成的该报警信号发送至报警器进行报警，提示用户将限压阀摆放至正确的位置，具体地，该报警器可以是蜂鸣器也可以是显示器等。限压阀位置判断具体流程步骤如图3所示。When the user wants to make the pressure cooker start to run, it must be detected by the electromagnetic device that the pressure-limiting valve is in the correct position before normal operation. Therefore, in an optional embodiment, an electromagnetic device can be used to detect whether the pressure-limiting valve is installed correctly, specifically, control the The controller judges the suction degree between the limit device and the pressure limit valve according to the pressure between the limit device and the pressure limit valve, so that it can judge whether the position of the pressure limit valve is abnormal. When the pressure cooker first starts to work, the controller judges The limit device and the pressure-limiting valve are not completely closed, indicating that the pressure-limiting valve is in an abnormal position. At this time, an alarm signal is generated, and the generated alarm signal is sent to the alarm for an alarm, prompting the user to place the pressure-limiting valve to the The correct position, specifically, the alarm can be a buzzer or a display, etc. The specific process steps of the pressure limiting valve position judgment are shown in Figure 3.
综上所述，本发明提供的压力锅安全性得到了提升，在压力锅运行过程中不会因为用户的误操作造成烫伤。其次也可对限压阀在压力锅开始运行时的位置是否正确作出判断。To sum up, the safety of the pressure cooker provided by the present invention is improved, and the user's misoperation will not cause burns during the operation of the pressure cooker. Secondly, it is also possible to judge whether the position of the pressure limiting valve is correct when the pressure cooker starts to run.
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.
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| USD914447S1 (en) | 2018-06-19 | 2021-03-30 | Sharkninja Operating Llc | Air diffuser |
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