Control method, device and equipment of charging gun system

Abstract

The present application discloses a control method, device, and equipment for a charging gun system, wherein the method comprises: obtaining a first current temperature of the charging gun line from a first temperature detection device, and obtaining a second current temperature of the charging gun head from a second temperature detection device; judging whether a heating mode or a cooling mode needs to be turned on based on the first current temperature and the second current temperature; if the heating mode needs to be turned on, controlling the water pump to operate, and controlling the three-way valve to open the liquid heating channel and close the liquid cooling channel to heat the charging gun line and / or the charging gun head; if the cooling mode needs to be turned on, controlling the water pump to operate, and controlling the three-way valve to open the liquid cooling channel and close the liquid heating channel to cool the charging gun line and / or the charging gun head. The technical solution provided by the present application can keep the charging gun and the charging gun line at a comfortable temperature, bringing a good charging experience to users of new energy vehicles.

Description

Technical Field

[0001] The present application relates to the field of vehicle charging technology, and in particular to a control method, device, and equipment for a charging gun system. Background Art

[0002] With the development of new energy technologies, new energy vehicles are increasingly capturing a larger share of the vehicle market. Charging is a common feature of all new energy vehicles, and plugging in a charging gun is a necessity for almost all new energy vehicle users. In the hot summer, the surface temperature of the charging gun is extremely high due to ambient temperatures and direct sunlight. In the cold winter, freezing rain and ice can make it difficult to unplug the gun, and the cable can even become so stiff that it's difficult to pull. These issues severely impact the charging experience for new energy vehicle users. Summary of the Invention

[0003] The embodiments of the present application provide a control method, device, and apparatus for a charging gun system, thereby maintaining a comfortable temperature for the charging gun and the charging gun cable, at least to a certain extent, and providing a good charging experience for users of new energy vehicles.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0005] According to a first aspect of an embodiment of the present application, a control method for a charging gun system is provided. The charging gun system includes a charging gun cable, a charging gun head, a liquid storage device, a water pump, a three-way valve, a liquid heating channel, a liquid cooling channel, a first temperature detection device, and a second temperature detection device. The liquid storage device is connected to the charging gun head via the water pump, the three-way valve, the liquid heating channel or the liquid cooling channel, and the charging gun cable in sequence. The method includes:

[0006] Acquire a first current temperature of the charging gun line from the first temperature detection device, and acquire a second current temperature of the charging gun head from the second temperature detection device;

[0007] determining whether to activate a heating mode or a cooling mode according to the first current temperature and the second current temperature;

[0008] When the heating mode needs to be turned on, the water pump is controlled to operate, and the three-way valve is controlled to open the liquid heating channel and close the liquid cooling channel to heat the charging gun wire and / or the charging gun head;

[0009] When the cooling mode needs to be turned on, the water pump is controlled to operate, and the three-way valve is controlled to open the liquid cooling channel and close the liquid heating channel to cool the charging gun wire and / or the charging gun head.

[0010] In some embodiments, determining whether to activate the heating mode or the cooling mode based on the first current temperature and the second current temperature includes:

[0011] When the first current temperature is lower than a first preset temperature or the second current temperature is lower than a second preset temperature, determining that the heating mode needs to be turned on, wherein the first preset temperature is lower than the second preset temperature;

[0012] When the second current temperature is greater than a third preset temperature, it is determined that the cooling mode needs to be turned on, wherein the third preset temperature is greater than the second preset temperature.

[0013] In some embodiments, when the heating mode needs to be turned on, controlling the water pump to operate includes:

[0014] In case the heating mode needs to be turned on, determining a current temperature difference between the first current temperature and the second current temperature;

[0015] A first rotational speed of the water pump is controlled according to the current temperature difference, the first current temperature, and the second current temperature.

[0016] In some embodiments, a heating component is provided in the liquid heating channel. After controlling the three-way valve to open the liquid heating channel and close the liquid cooling channel, the method further includes:

[0017] When the second current temperature reaches the third preset temperature, controlling the heating component to stop heating;

[0018] When the current temperature difference is less than a fourth preset temperature, controlling the water pump to stop running;

[0019] When the current temperature difference is greater than or equal to the fourth preset temperature, the rotational speed of the water pump is controlled to be lower than the first rotational speed.

[0020] In some embodiments, when the cooling mode needs to be turned on, controlling the water pump to operate includes:

[0021] When the cooling mode needs to be turned on, the second speed of the water pump is controlled according to the second current temperature.

[0022] In some embodiments, a cooling assembly is provided in the liquid cooling channel. After controlling the three-way valve to open the liquid cooling channel and close the liquid heating channel, the method further includes:

[0023] The cooling power of the cooling component is controlled according to the second current temperature, wherein the cooling power is positively correlated with the second current temperature.

[0024] In some embodiments, a cooling assembly is provided in the liquid cooling channel. After controlling the three-way valve to open the liquid cooling channel and close the liquid heating channel, the method further includes:

[0025] When the second current temperature is lower than the fifth preset temperature, the cooling assembly is controlled to stop cooling, and the rotation speed of the water pump is controlled to be lower than the second rotation speed.

[0026] According to a second aspect of an embodiment of the present application, a control device for a charging gun system is provided. The charging gun system includes a charging gun cable, a charging gun head, a liquid storage device, a water pump, a three-way valve, a liquid heating channel, a liquid cooling channel, a first temperature detection device, and a second temperature detection device. The liquid storage device is connected to the charging gun head via the water pump, the three-way valve, the liquid heating channel or the liquid cooling channel, and the charging gun cable in sequence. The device includes:

[0027] a temperature acquisition module, configured to acquire a first current temperature of the charging gun line from the first temperature detection device, and acquire a second current temperature of the charging gun head from the second temperature detection device;

[0028] a mode determination module, configured to determine whether a heating mode or a cooling mode needs to be turned on according to the first current temperature and the second current temperature;

[0029] a heating control module, configured to control the water pump to operate when the heating mode needs to be turned on, and to control the three-way valve to open the liquid heating channel and close the liquid cooling channel, so as to heat the charging gun cable and / or the charging gun head;

[0030] The cooling control module is used to control the operation of the water pump when the cooling mode needs to be turned on, and to control the three-way valve to open the liquid cooling channel and close the liquid heating channel to cool the charging gun line and / or the charging gun head.

[0031] According to a third aspect of an embodiment of the present application, a control device for a charging gun system is provided, comprising a processor and a memory, wherein the memory stores computer program instructions that can be executed by the processor, and when the processor executes the computer program instructions, the steps of the method described in any one of the first aspects above are implemented.

[0032] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor is prompted to implement the steps of the method described in any one of the first aspects above.

[0033] In this application, the first current temperature of the charging gun line is obtained from the first temperature detection device, and the second current temperature of the charging gun head is obtained from the second temperature detection device; based on the first current temperature and the second current temperature, it is determined whether the heating mode or the cooling mode needs to be turned on; if the heating mode needs to be turned on, the water pump is controlled to run, and the three-way valve is controlled to open the liquid heating channel and close the liquid cooling channel to heat the charging gun line and / or the charging gun head; if the cooling mode needs to be turned on, the water pump is controlled to run, and the three-way valve is controlled to open the liquid cooling channel and close the liquid heating channel to cool the charging gun line and / or the charging gun head. The technical solution provided by this application can keep the charging gun and the charging gun line at a comfortable temperature, bringing a good charging experience to users of new energy vehicles.

[0034] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, explaining the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0036] Figure 1 A schematic structural diagram of a charging gun system in one embodiment is shown;

[0037] Figure 2 A schematic flow chart of a control method for a charging gun system in one embodiment is shown;

[0038] Figure 3 A block diagram of a control device for a charging gun system according to an embodiment is shown;

[0039] Figure 4A schematic structural diagram of a control device of a charging gun system in one embodiment is shown.

[0040] Explanation of the accompanying drawings: 1-charging gun wire, 2-charging gun head, 3-liquid storage device, 4-water pump, 5-three-way valve, 6-liquid heating channel, 7-liquid cooling channel, 8-first temperature detection device, 9-second temperature detection device. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0043] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0044] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0045] It should also be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that shown or described.

[0046] In order to make those skilled in the art better understand this application, first combine Figure 1The charging gun system involved in this application is briefly described.

[0047] Figure 1 FIG1 shows a schematic diagram of the structure of a charging gun system in one embodiment. Figure 1 As shown, the charging gun system includes a charging gun line 1, a charging gun head 2, a liquid storage device 3, a water pump 4, a three-way valve 5, a liquid heating channel 6, a liquid cooling channel 7, a first temperature detection device 8, a second temperature detection device 9 and a control device of the charging gun system (not shown in the figure). The liquid storage device 3 is connected to the charging gun head 2 in sequence through the water pump 4, the three-way valve 5, the liquid heating channel 6 or the liquid cooling channel 7, and the charging gun line 1.

[0048] In some embodiments, the three-way valve 5 can control the opening and closing of the liquid heating channel 6 and the liquid cooling channel 7, thereby controlling the flow direction of the liquid. The liquid heating channel 6 is provided with a heating component (not shown), such as a PTC. The liquid in the liquid storage device 3 can be heated by the water pump 4, the three-way valve 5, and the liquid heating channel 6 to heat the charging gun cable 1 and the charging gun head 2. The liquid cooling channel 7 is provided with a cooling component (not shown), such as an air cooling device. The liquid in the liquid storage device 3 can be cooled by the water pump 4, the three-way valve 5, and the liquid cooling channel 7 to cool the charging gun cable 1 and the charging gun head 2.

[0049] The control device of the charging gun system is connected to the water pump 4, the three-way valve 5, the liquid heating channel 6, the liquid cooling channel 7, the first temperature detection device 8, and the second temperature detection device 9 for controlling and interacting with these devices.

[0050] In some embodiments, the charging gun system may also include a liquid level monitoring sensor, a hydraulic monitoring sensor, a flow rate sensor, etc., wherein the liquid level monitoring sensor is used to monitor the liquid level in the liquid storage device, so as to promptly remind the user to replenish the liquid in the liquid storage device; the hydraulic monitoring sensor is used to monitor the hydraulic pressure at the water pump outlet, so as to detect whether the water pump is operating normally based on the hydraulic pressure and the speed of the water pump; the flow rate sensor is used to monitor the liquid flow rate at the inlet and outlet of the liquid heating channel and the liquid cooling channel, so as to control the water pump speed according to the flow rate to avoid excessive or insufficient liquid flow.

[0051] Figure 2 FIG. 1 is a flow chart showing a control method for a charging gun system in one embodiment. Figure 2 As shown, a control method for a charging gun system is provided, which can be applied to a control device of the charging gun system, such as a controller, etc. The method can include the following steps 201 to 204.

[0052] In step 201 , a first current temperature of a charging gun line is obtained from a first temperature detection device, and a second current temperature of a charging gun head is obtained from a second temperature detection device.

[0053] It is understandable that the first temperature detection device can be set near the charging gun line to detect the temperature of the charging gun line in real time to obtain the first current temperature. The control device of the charging gun system can obtain the first current temperature from the first temperature detection device.

[0054] The second temperature detection device can be set near the charging gun head to detect the temperature of the charging gun head in real time to obtain a second current temperature. The control device of the charging gun system can obtain the second current temperature from the second temperature detection device.

[0055] In step 202, it is determined whether a heating mode or a cooling mode needs to be turned on according to the first current temperature and the second current temperature.

[0056] Generally speaking, the grip of the charging gun is optimal when the temperature at the grip is between 18°C ​​and 30°C, and an acceptable grip is between 10°C and 40°C. The charging gun cable becomes stiffer when the temperature is below 5°C. This temperature point varies slightly depending on the cable material. If the temperature of the charging gun cable and the charging gun tip is outside the normal range, activate heating or cooling mode to keep the charging gun and cable within a comfortable temperature range.

[0057] In some embodiments, when the first current temperature is lower than the first preset temperature or the second current temperature is lower than the second preset temperature, it is determined that the heating mode needs to be turned on, wherein the first preset temperature is lower than the second preset temperature; when the second current temperature is higher than the third preset temperature, it is determined that the cooling mode needs to be turned on, wherein the third preset temperature is higher than the second preset temperature.

[0058] It can be understood that when the first current temperature is lower than the first preset temperature (for example, 5°C), it indicates that the temperature of the charging gun wire is too low. In order to avoid the stiffness of the charging gun wire, it is necessary to turn on the heating mode and heat the charging gun wire; when the second current temperature is lower than the second preset temperature (for example, 10°C), it indicates that the temperature of the charging gun head is too low. In order to avoid affecting the grip of the human hand, it is necessary to turn on the heating mode and heat the charging gun head.

[0059] When the second current temperature is greater than the third preset temperature (for example, 40°C), it indicates that the temperature of the charging gun head is too high. In order to avoid affecting the grip of the hand and for charging safety considerations, the cooling mode needs to be turned on to cool the charging gun head.

[0060] In some embodiments, for charging piles that require a reservation for charging, step 202 can be executed in advance based on the reservation information. If there is no reservation charging information, it does not need to be executed, which can achieve a better effect of saving electricity.

[0061] In step 203 , when the heating mode needs to be turned on, the water pump is controlled to run, and the three-way valve is controlled to open the liquid heating channel and close the liquid cooling channel to heat the charging gun wire and / or the charging gun head.

[0062] It can be understood that by controlling the water pump to run and opening the liquid heating channel, the heating component in the liquid heating channel will heat the liquid, and the heat of the liquid can be transferred to the charging gun wire and the charging gun head to achieve heating of the charging gun wire and the charging gun head.

[0063] In some embodiments, when the heating mode needs to be turned on, the current temperature difference between the first current temperature and the second current temperature is determined; and the first speed of the water pump is controlled according to the current temperature difference, the first current temperature, and the second current temperature.

[0064] During implementation, the first speed can be positively correlated with the current temperature difference and negatively correlated with the first current temperature and the second current temperature. If it is determined that the heating mode needs to be activated, the absolute value of the difference between the first current temperature and the second current temperature is used as the current temperature difference. The greater the temperature difference, the faster the first speed of the water pump is, thereby accelerating the heating speed. The higher the first current temperature and the second current temperature, the slower the first speed of the water pump is.

[0065] In some embodiments, when the second current temperature reaches the third preset temperature, the heating component is controlled to stop heating; when the current temperature difference is less than the fourth preset temperature, the water pump is controlled to stop running; when the current temperature difference is greater than or equal to the fourth preset temperature, the speed of the water pump is controlled to be less than the first speed.

[0066] For example, if the third preset temperature is 40°C and the fourth preset temperature is 5°C, when the second current temperature is greater than or equal to 40°C, the heating component stops heating. If the current temperature difference is less than 5°C, the water pump stops running. If the current temperature difference is greater than or equal to 5°C, the water pump is controlled to run at a lower speed. If the first and second current temperatures determine that heating mode is needed again, the water pump and heating component can be restarted to start a new round of heating mode.

[0067] It is understandable that the specific heat capacity of the liquid is large, and the temperature can be maintained for a long time even if the heating component is not turned on. By controlling the heating component and the water pump speed, the energy consumption of the entire system can be reduced.

[0068] In step 204 , when the cooling mode needs to be turned on, the water pump is controlled to run, and the three-way valve is controlled to open the liquid cooling channel and close the liquid heating channel to cool the charging gun wire and / or the charging gun head.

[0069] It can be understood that by controlling the water pump to run and opening the liquid cooling channel, the cooling component in the liquid cooling channel will cool the liquid, thereby reducing the temperature of the charging gun wire and the charging gun head.

[0070] In some embodiments, when the cooling mode needs to be turned on, the second speed of the water pump is controlled according to the second current temperature.

[0071] During the implementation process, the second current temperature is positively correlated with the second rotational speed. The higher the second current temperature is, the faster the second rotational speed of the water pump is, so as to cool the charging gun head as quickly as possible.

[0072] In some embodiments, the cooling power of the cooling component can be controlled according to the second current temperature, wherein the cooling power is positively correlated with the second current temperature.

[0073] It is understandable that the higher the second current temperature is, the greater the cooling power of the cooling component is, so as to cool the coolant as quickly as possible.

[0074] In some embodiments, when the second current temperature is lower than the fifth preset temperature, the cooling assembly is controlled to stop cooling, and the rotation speed of the water pump is controlled to be lower than the second rotation speed.

[0075] Taking the fifth preset temperature of 18° C. as an example, if the second current temperature is less than 18° C., the cooling component stops cooling and controls the water pump to run at a lower speed to reduce energy consumption of the entire system.

[0076] Through the above solution, the charging gun wire and charging gun can be cooled and heated, so that the charging gun system can always maintain a suitable temperature. In the hot summer, users will not get burned when using the charging gun due to the high temperature of the charging gun. In the cold winter, the user will not be unable to unplug or plug the gun due to the low or harsh temperature, which brings a better charging experience to users.

[0077] The following describes an embodiment of the device of the present application, which can be used to implement the control method of the charging gun system in the above-mentioned embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the control method of the charging gun system in the above-mentioned embodiment of the present application.

[0078] Figure 3 The block diagram of the control device of the charging gun system in one embodiment is shown. The charging gun system includes a charging gun line, a charging gun head, a liquid storage device, a water pump, a three-way valve, a liquid heating channel, a liquid cooling channel, a first temperature detection device and a second temperature detection device. The liquid storage device is connected to the charging gun head via the water pump, the three-way valve, the liquid heating channel or the liquid cooling channel, and the charging gun line. Figure 3As shown, the control device of the charging gun system of an embodiment of the present application includes: a temperature acquisition module 301, which is used to obtain the first current temperature of the charging gun line from a first temperature detection device, and obtain the second current temperature of the charging gun head from a second temperature detection device; a mode judgment module 302, which is used to judge whether it is necessary to turn on the heating mode or the cooling mode according to the first current temperature and the second current temperature; a heating control module 303, which is used to control the operation of the water pump when the heating mode needs to be turned on, and control the three-way valve to open the liquid heating channel and close the liquid cooling channel to heat the charging gun line and / or the charging gun head; a cooling control module 304, which is used to control the operation of the water pump when the cooling mode needs to be turned on, and control the three-way valve to open the liquid cooling channel and close the liquid heating channel to cool the charging gun line and / or the charging gun head.

[0079] In some embodiments, the mode judgment module 302 is also used to determine that the heating mode needs to be turned on when the first current temperature is lower than the first preset temperature or the second current temperature is lower than the second preset temperature, wherein the first preset temperature is lower than the second preset temperature; and to determine that the cooling mode needs to be turned on when the second current temperature is higher than the third preset temperature, wherein the third preset temperature is higher than the second preset temperature.

[0080] In some embodiments, the heating control module 303 is also used to determine the current temperature difference between the first current temperature and the second current temperature when the heating mode needs to be turned on; and control the first speed of the water pump based on the current temperature difference, the first current temperature and the second current temperature.

[0081] In some embodiments, the heating control module 303 is also used to control the heating component to stop heating when the second current temperature reaches the third preset temperature; control the water pump to stop running when the current temperature difference is less than the fourth preset temperature; and control the water pump speed to be less than the first speed when the current temperature difference is greater than or equal to the fourth preset temperature.

[0082] In some embodiments, the cooling control module 304 is further configured to control a second speed of the water pump according to a second current temperature when the cooling mode needs to be activated.

[0083] In some embodiments, the cooling control module 304 is further configured to control the cooling power of the cooling component according to the second current temperature, wherein the cooling power is positively correlated with the second current temperature.

[0084] In some embodiments, the cooling control module 304 is further configured to control the cooling assembly to stop cooling and control the rotation speed of the water pump to be lower than the second rotation speed when the second current temperature is lower than the fifth preset temperature.

[0085] Based on the same inventive concept, the present application embodiment also provides a control device for a charging gun system, referring to Figure 4 , shows a structural schematic diagram of the control device of the charging gun system in an embodiment of the present application, wherein the control device of the charging gun system includes one or more memories 404, one or more processors 402, and at least one computer program (computer program instruction) stored in the memory 404 and executable on the processor 402. When the processor 402 executes the computer program, the method described above is implemented.

[0086] Among them, Figure 4 In the embodiment of the present invention, a bus architecture (represented by bus 400) is shown. Bus 400 may include any number of interconnected buses and bridges, and bus 400 links together various circuits including one or more processors represented by processor 402 and memory represented by memory 404. Bus 400 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 405 provides an interface between bus 400 and receiver 401 and transmitter 403. Receiver 401 and transmitter 403 may be the same component, namely a transceiver, which provides a unit for communicating with various other devices over a transmission medium. Processor 402 is responsible for managing bus 400 and general processing, while memory 404 may be used to store data used by processor 402 when performing operations.

[0087] Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium, in which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor is prompted to implement the steps of the method as described above.

[0088] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of this application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, the functional units may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0089] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0090] The units described as separate components may or may not be physically separate, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0091] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store computer program instructions.

[0092] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

Claims

1. A control method for a charging gun system, characterized in that: The charging gun system includes a charging gun cable, a charging gun head, a liquid storage device, a water pump, a three-way valve, a liquid heating channel, a liquid cooling channel, a first temperature detection device, and a second temperature detection device. The liquid storage device is connected to the charging gun head via the water pump, the three-way valve, the liquid heating channel or the liquid cooling channel, and the charging gun cable in sequence. A heating component is provided in the liquid heating channel. The method includes: Acquire a first current temperature of the charging gun line from the first temperature detection device, and acquire a second current temperature of the charging gun head from the second temperature detection device; determining whether to activate a heating mode or a cooling mode according to the first current temperature and the second current temperature; When the heating mode needs to be turned on, the water pump is controlled to operate, and the three-way valve is controlled to open the liquid heating channel and close the liquid cooling channel to heat the charging gun wire and / or the charging gun head; When the cooling mode needs to be turned on, the water pump is controlled to operate, and the three-way valve is controlled to open the liquid cooling channel and close the liquid heating channel to cool the charging gun line and / or the charging gun head; wherein, When the heating mode needs to be turned on, controlling the water pump to operate includes: In case the heating mode needs to be turned on, determining a current temperature difference between the first current temperature and the second current temperature; controlling a first speed of the water pump according to the current temperature difference, the first current temperature, and the second current temperature; After controlling the three-way valve to open the liquid heating channel and close the liquid cooling channel, the method further includes: When the second current temperature reaches a third preset temperature, controlling the heating component to stop heating; When the current temperature difference is less than a fourth preset temperature, controlling the water pump to stop running; When the current temperature difference is greater than or equal to the fourth preset temperature, the rotational speed of the water pump is controlled to be lower than the first rotational speed.

2. The control method of the charging gun system according to claim 1, characterized in that: The determining whether to activate the heating mode or the cooling mode according to the first current temperature and the second current temperature includes: When the first current temperature is lower than a first preset temperature or the second current temperature is lower than a second preset temperature, determining that the heating mode needs to be turned on, wherein the first preset temperature is lower than the second preset temperature; When the second current temperature is greater than a third preset temperature, it is determined that the cooling mode needs to be turned on, wherein the third preset temperature is greater than the second preset temperature.

3. The control method of the charging gun system according to claim 1, characterized in that: When the cooling mode needs to be turned on, controlling the water pump to operate includes: When the cooling mode needs to be turned on, the second speed of the water pump is controlled according to the second current temperature.

4. The control method of the charging gun system according to claim 3, characterized in that: A cooling assembly is provided in the liquid cooling channel. After controlling the three-way valve to open the liquid cooling channel and close the liquid heating channel, the method further includes: The cooling power of the cooling component is controlled according to the second current temperature, wherein the cooling power is positively correlated with the second current temperature.

5. The control method of the charging gun system according to claim 3, characterized in that: A cooling assembly is provided in the liquid cooling channel. After controlling the three-way valve to open the liquid cooling channel and close the liquid heating channel, the method further includes: When the second current temperature is lower than the fifth preset temperature, the cooling assembly is controlled to stop cooling, and the rotation speed of the water pump is controlled to be lower than the second rotation speed.

6. A control device for a charging gun system, characterized in that: The charging gun system includes a charging gun cable, a charging gun head, a liquid storage device, a water pump, a three-way valve, a liquid heating channel, a liquid cooling channel, a first temperature detection device, and a second temperature detection device. The liquid storage device is connected to the charging gun head via the water pump, the three-way valve, the liquid heating channel or the liquid cooling channel, and the charging gun cable in sequence. A heating component is provided in the liquid heating channel. The device includes: a temperature acquisition module, configured to acquire a first current temperature of the charging gun line from the first temperature detection device, and acquire a second current temperature of the charging gun head from the second temperature detection device; a mode determination module, configured to determine whether a heating mode or a cooling mode needs to be turned on according to the first current temperature and the second current temperature; a heating control module, configured to control the water pump to operate when the heating mode needs to be turned on, and to control the three-way valve to open the liquid heating channel and close the liquid cooling channel, so as to heat the charging gun cable and / or the charging gun head; A cooling control module is used to control the operation of the water pump when the cooling mode needs to be turned on, and to control the three-way valve to open the liquid cooling channel and close the liquid heating channel to cool the charging gun line and / or the charging gun head; wherein, The heating control module is further configured to, when the heating mode needs to be turned on, determine a current temperature difference between the first current temperature and the second current temperature, and control a first speed of the water pump according to the current temperature difference, the first current temperature, and the second current temperature; The heating control module is also used to control the heating component to stop heating when the second current temperature reaches the third preset temperature; control the water pump to stop running when the current temperature difference is less than the fourth preset temperature; and control the speed of the water pump to be less than the first speed when the current temperature difference is greater than or equal to the fourth preset temperature.

7. A control device for a charging gun system, comprising a processor and a memory, characterized in that: The memory stores computer program instructions that can be executed by the processor, and when the processor executes the computer program instructions, the steps of the method according to any one of claims 1 to 5 are implemented.

8. A charging gun system, characterized in that: include: A charging gun line, a charging gun head, a liquid storage device, a water pump, a three-way valve, a liquid heating channel, a liquid cooling channel, a first temperature detection device, a second temperature detection device, and a control device of the charging gun system according to claim 7, wherein, The liquid storage device is connected to the charging gun head in sequence through the water pump, the three-way valve, the liquid heating channel or the liquid cooling channel, and the charging gun line. The control device of the charging gun system is connected to the water pump, the three-way valve, the liquid heating channel, the liquid cooling channel, the first temperature detection device, and the second temperature detection device. A heating component is provided in the liquid heating channel.

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