A high-voltage control box for liquid cooling, a high-voltage battery control system and an energy storage system

Abstract

The present application relates to the field of high-voltage battery control, and particularly relates to a high-voltage control box for liquid cooling, a high-voltage battery control system and an energy storage system, wherein the high-voltage control box for liquid cooling comprises a control box, and a control loop and a battery management system are arranged in the control box; the high-voltage battery control system comprises the high-voltage control box for liquid cooling, a battery and a liquid cooling box. By integrally arranging the control loop and the battery management system in the control box, the control box is arranged separately from the battery, and detachable connection of the battery and the control box is realized, so that the maintenance of the battery / high-voltage control box is more convenient; the control loop and the battery management system in the control box are both arranged in the control box, so that the heat generated in the box can be directly transmitted to the outside through the control box, and damage of control elements caused by heat accumulation in the control box is avoided; the high-voltage control box for liquid cooling in the high-voltage battery control system is detachably connected with the battery as a separate component, so that the battery and the high-voltage control box are modularized, and are easy to replace and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of high-voltage battery control, in particular to a high-voltage control box for liquid cooling, a high-voltage battery control system and an energy storage system. BACKGROUND

[0002] The high-voltage battery system, commonly known as the battery pack, is generally connected by series / parallel connection of battery modules and installed on the automobile as a whole in a shell that meets various requirements. However, in fact, in addition to the battery pack, the high-voltage battery system also needs to be equipped with a battery management system (BMS), a cooling system and some low-voltage / high-voltage wiring harness accessories. In order to ensure safety and sealing, they are usually installed as a whole on the automobile, and ordinary users usually think it is a whole battery pack from the appearance.

[0003] At present, the battery pack integrating the battery management system (BMS), the cooling system and some low-voltage / high-voltage wiring harness accessories has a heat dissipation system shared by the battery management system and the battery. The battery management system has poor heat dissipation effect, and heat accumulation is easy to occur at the battery management system, which has safety hazards. The battery management system (BMS) integrated with the battery as a whole is not detachable, and the battery is difficult to replace.

[0004] Therefore, there is an urgent need for a technical solution to solve the technical problems of poor heat dissipation of the existing battery management system and difficulty in replacing the battery. SUMMARY

[0005] The present application aims to solve the technical problems of poor heat dissipation of the existing battery management system and difficulty in replacing the battery, and provides a high-voltage control box for liquid cooling, a high-voltage battery control system and an energy storage system.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] A high-voltage control box for liquid cooling, comprising a control box, the control circuit and the battery management system are arranged in the control box.

[0008] The high-voltage control box for liquid cooling of the present application integrates the control circuit and the battery management system in the control box, so that the control box is separated from the battery and detachable connection of the battery and the control box is realized, which is more convenient for maintenance of the battery / high-voltage control box. The control circuit and the battery management system in the control box are arranged flatly in the control box, so that the heat generated in the box can be directly transferred to the outside through the control box, avoiding damage of the control components caused by heat accumulation in the control box.

[0009] As a preferred scheme of the present application, the control circuit comprises a positive electrode circuit, a negative electrode circuit and a main circuit switch, the main circuit switch comprises a positive electrode switch and a negative electrode switch, the positive electrode circuit comprises a positive electrode input end, a positive electrode fuse, a positive electrode relay, the positive electrode switch and a positive electrode output end connected in series by a first copper bar, and the negative electrode circuit comprises a negative electrode input end, a negative electrode fuse, a negative electrode relay, the negative electrode switch and a negative electrode output end connected in series by a second copper bar. The control circuit is connected by the copper bars, and the cross-sectional area of the copper bars is 3*25 mm 2 , in particular, the cross-sectional area of the copper bar connected with the fuse is 5*25 mm 2 , so as to increase the heat dissipation area of the copper bar.

[0010] As a preferred scheme of the present application, the control box comprises a front panel, a knob switch is embedded in the front panel, the knob switch is connected with the main circuit switch, and the knob switch is arranged in the projection plane of the main circuit switch on the front panel. By embedding the knob switch on the front panel and directly connecting the knob switch with the main circuit switch, the direct control of the main circuit switch is realized, and the knob switch can be used to manually control the main circuit switch.

[0011] As a preferred scheme of the present application, the positive electrode input end, the positive electrode output end, the negative electrode input end and the negative electrode output end are embedded in the front panel, the positive electrode input end and the negative electrode input end are located on the same side of the knob switch, and the positive electrode output end and the negative electrode output end are located on the other side of the knob switch. By arranging the positive electrode input end and the negative electrode input end on the same side and arranging the positive electrode output end and the negative electrode output end on the same side, the wiring is more convenient, the wiring confusion can be avoided, and the control box is more convenient to install and set.

[0012] As a preferred scheme of the present application, the battery management system comprises a BMS master control, the positive electrode fuse, the positive electrode relay, the negative electrode fuse and the negative electrode relay are located on one side of the main circuit switch, and the BMS master control is located on the other side of the main circuit switch. By arranging the BMS master control on the side away from the control element, the electromagnetic interference of the control element on the BMS master control during operation is avoided.

[0013] As a preferred scheme of the present application, an equalization module is arranged in the control box, the equalization module is arranged at the rear end of the control box, the equalization module and the positive electrode relay are located on the same side of the main circuit switch, the equalization module and the positive electrode relay are connected in parallel, and the equalization module comprises a circulating current relay and an equalization resistor connected in series. The arrangement of the equalization module can reduce the circulating current influence between the battery clusters.

[0014] As a preferred scheme of the present application, the BMS master control is located at the rear end of the control box. The equalization module generates heat during operation, so it needs to be arranged separately from the BMS master control and the equalization module.

[0015] As a preferred scheme of the present application, the front panel is provided with a button switch, a power interface, an indicator, a low-voltage communication interface and a diagnostic interface, the button switch and the power interface are arranged on one side of the rotary knob switch, and the indicator, the low-voltage communication interface and the diagnostic interface are arranged on the other side of the rotary knob switch, the indicator, the low-voltage communication interface and the diagnostic interface are in communication connection with the battery management system, and the button switch is connected in series between the power interface and the BMS master control. The signal area and the control area on the front panel are arranged separately, the separation is obvious, misoperation is avoided, and meanwhile, the wires are separated in the control box, so that signal interference is avoided.

[0016] As a preferred scheme of the present application, the BMS master control is connected with a collection wire harness and a communication wire harness, the collection wire harness and the communication wire harness are separated in wire arrangement, the BMS master control is in communication with the power interface through a power wire harness, and the power wire harness is arranged along the edge of the control box. The wires are separated to avoid mutual influence between the wire harnesses, electromagnetic interference is reduced, and the accuracy of collection and communication is improved.

[0017] As a preferred scheme of the present application, an arc separation plate is arranged between the collection wire harness and / or the communication wire harness and the main circuit switch. The arc separation plate is made of insulating material, and separates the collection wire harness and the communication wire harness, so that arc breakdown of the collection wire harness and the communication wire harness is avoided when the main circuit switch is operated with load.

[0018] As a preferred scheme of the present application, the battery management system further comprises a temperature sensor and a shunt, the shunt is connected in series with the positive electrode circuit or the negative electrode circuit, the temperature sensor is arranged in the control box, and the temperature sensor and the shunt are connected with the communication wire harness. The temperature sensor is arranged to monitor the temperature in the control box, and the shunt is arranged to collect the current of the control circuit.

[0019] As a preferred scheme of the present application, the positive fuse and the negative fuse are both provided with a micro switch, the micro switch, the positive relay and the negative relay are in communication connection with the battery management system, and the main circuit switch is in control connection with the battery management system. The micro switch is arranged to control the relay, so that the relay and the main circuit switch are both controlled by the battery management system.

[0020] As a preferred scheme of the present application, the bottom of the positive fuse, the bottom of the positive relay and the bottom of the main circuit switch are all provided with the first copper bar, the bottom of the negative fuse, the bottom of the negative relay and the bottom of the main circuit switch are all provided with the second copper bar, and the first copper bar and / or the second copper bar comprises a soft copper bar. The copper bar is arranged below the components, which ensures good contact between the copper bar and the components, reduces heat generation, and the soft copper bar provides better moldability, facilitating the arrangement of electronic components in the control box.

[0021] As a preferred scheme of the present application, the front panel is provided with a bonding point for a bonding strap, and / or the front panel is provided with an extension part, and the extension part is provided with a through hole. The bonding point is arranged on the front panel, and the connection state of the bonding point can be directly observed. The through hole is used for fixedly connecting with a cabinet, and the control box is fixed.

[0022] A high-voltage battery control system comprises the above-mentioned liquid-cooled high-voltage control box, and further comprises a battery and a liquid-cooled tank, the battery is circuit-connected with the liquid-cooled high-voltage control box, and the liquid-cooled tank is arranged in close contact with the liquid-cooled high-voltage control box.

[0023] The liquid-cooled high-voltage control box is detachably connected with the battery as a separate component, so that the battery and the high-voltage control box are modularized, the battery / high-voltage control box is easy to replace, and maintenance is easy. The liquid-cooled tank is arranged in close contact with the liquid-cooled high-voltage control box, so that the liquid in the liquid-cooled tank can timely take away the heat in the liquid-cooled high-voltage control box when flowing.

[0024] A high-voltage battery control system comprises the above-mentioned liquid-cooled high-voltage control box, and further comprises a battery and a liquid-cooled tank, the battery is circuit-connected with the liquid-cooled high-voltage control box, and the liquid-cooled tank is arranged in close contact with the liquid-cooled high-voltage control box.

[0025] The terminal resistance module is arranged outside, so that the terminal resistance module is detachably connected with the liquid-cooled high-voltage control box, the high-voltage battery control system can be randomly replaced to any position for communication, and the high-voltage battery control systems at the start and end of communication do not need to be provided with the terminal resistance module, thereby improving the versatility of the high-voltage battery control system and the energy storage system.

[0026] As described above, by adopting the above technical scheme, the present application has the following advantages:

[0027] 1. The high-voltage control box for liquid cooling of the application, by integrating the control loop and the battery management system in the control box, the control box is separated from the battery, realizing the detachable connection of the battery and the control box, and the maintenance of the battery / high-voltage control box is more convenient; the control loop and the battery management system in the control box are all laid flat in the control box, so that the heat generated in the box can be directly transmitted to the outside through the control box, avoiding damage to the control elements caused by heat accumulation in the control box.

[0028] 2. The high-voltage control box for liquid cooling of the application, the positive electrode loop / negative electrode loop and the battery management system are integrated in the control box, so that the control box is detachably connected with the battery, and the liquid cooling heat dissipation mode is used to meet the environment where air cooling cannot be used, and has good economic value.

[0029] 3. The high-voltage battery control system of the application, the high-voltage control box for liquid cooling is detachably connected with the battery as a separate component, so that the battery and the high-voltage control box are modularized, the battery / high-voltage control box is easy to replace, and the maintenance is easy; by adhering the liquid cooling box and the high-voltage control box for liquid cooling, the heat in the high-voltage control box for liquid cooling can be timely removed when the liquid in the liquid cooling box flows.

[0030] 4. The energy storage system of the application, by externally arranging the terminal resistance module, and detachably connecting the terminal resistance module with the high-voltage battery control system, the high-voltage battery control system can be randomly replaced to any position of communication, and the high-voltage battery control systems at the start and end of communication do not need to be internally arranged with terminal resistance modules, improving the universality of the high-voltage battery control system and the energy storage system. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is an internal structure diagram of a high-voltage control box for liquid cooling;

[0032] Figure 2 It is a structure diagram of a front panel of a high-voltage control box for liquid cooling;

[0033] Figure 3 It is a schematic diagram of the appearance structure of a high-voltage control box for liquid cooling;

[0034] Figure 4 It is a high-voltage control circuit diagram of a high-voltage control box for liquid cooling;

[0035] Figure 5 It is a wiring terminal diagram of the BMS master control of the application;

[0036] Figure 6 It is a circuit control diagram of the battery management system power supply of the application.

[0037] Icon:

[0038] 1-Control box, 2-Negative circuit, 3-Positive circuit, 4-Battery management system, 5-Battery equalization module, 6-Positive input terminal, 7-Positive fuse, 8-Positive relay, 9-Main circuit switch, 10-Positive output terminal, 11-Negative input terminal, 12-Negative fuse, 13-Negative relay, 14-Negative output terminal, 15-Front panel, 16-Rotary switch, 17-Indicator light, 18-Low-voltage communication interface, 19-Diagnostic interface, 20-Power interface, 21-Push-button switch, 22-Data acquisition harness, 23-Communication harness, 24-Power harness, 25-Temperature sensor, 26-Shunt, 27-Circulating current relay, 28-Battery equalization resistor, 29-First copper busbar, 30-Second copper busbar, 31-Handle, 32-Ground point, 33-Through hole, 41-BMS main controller. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings.

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0041] Example 1

[0042] like Figures 1-6 The high-voltage control box for liquid cooling shown includes a control box 1, in which a control circuit and a battery management system 4 are laid out flat.

[0043] Specifically, the control circuit includes a positive circuit 3, a negative circuit 2, and a main circuit switch 9. The main circuit switch 9 includes a positive switch and a negative switch. The positive circuit 3 includes a positive input terminal 6, a positive fuse 7, a positive relay 8, a positive switch, and a positive output terminal 10, connected in series using a first copper busbar 29. The negative circuit 2 includes a negative input terminal 11, a negative fuse (12), a negative relay 13, a negative switch, and a negative output terminal 14, connected in series using a second copper busbar 30. The control circuit is connected via copper busbars with a cross-sectional area of ​​3*25mm. 2 In particular, the cross-sectional area of ​​the copper busbar connected to the fuse is 5*25mm. 2 This increases the heat dissipation area of ​​the copper busbar.

[0044] Specifically, the control box 1 comprises a front panel 15, the front panel 15 is embedded with a knob switch 16, the knob switch 16 is in control connection with the main circuit switch 9, and the knob switch 16 is arranged in the projection plane of the main circuit switch 9 on the front panel 15. By embedding the knob switch 16 on the front panel 15 and directly connecting the knob switch 16 with the main circuit switch 9, direct control of the main circuit switch 9 is realized, and manual control of the main circuit switch 9 can be performed.

[0045] Specifically, the positive input end 6, the positive output end 10, the negative input end 11 and the negative output end 14 are all embedded in the front panel 15, the positive input end 6 and the negative input end 11 are located on the same side of the knob switch 16, and the positive output end 10 and the negative output end 14 are located on the other side of the knob switch 16. By arranging the positive input end 6 and the negative input end 11 on the same side and arranging the positive output end 10 and the negative output end 14 on the same side, wiring is more convenient, wiring confusion can be avoided, and the control box 1 is more convenient to install and set.

[0046] Specifically, along the height direction of the control box 1, the arrangement position of the positive input end 6 is lower than that of the negative input end 11, and the arrangement position of the positive output end is lower than that of the negative output end 14. The specific arrangement mode of the positive input end 6, the positive output end 10, the negative input end 11 and the negative output end 14 is adapted to the wire outlet mode of the battery, and external wiring is facilitated.

[0047] Specifically, the battery management system 4 comprises a BMS main control 41, the positive fuse 7, the positive relay 8, the negative fuse 12 and the negative relay 13 are located on one side of the main circuit switch 9, and the BMS main control 41 is located on the other side of the main circuit switch 9. The BMS main control 41 is arranged on the side away from the control element, so as to avoid electromagnetic interference of the control element on the BMS main control 41.

[0048] Specifically, the control box 1 is provided with an equalization module 5, the equalization module 5 is arranged at the rear end of the control box 1, the equalization module 5 and the positive relay 8 are located on the same side of the main circuit switch 9, the equalization module 5 and the positive relay 8 are connected in parallel, and the equalization module 5 comprises a circulating current relay 27 and an equalization resistor 28 connected in series. The arrangement of the equalization module 5 can reduce the circulating current influence between the battery clusters.

[0049] Specifically, the BMS master 41 is located at the rear end of the control box 1. The BMS master 41 is arranged adjacent to the equalization module 5, preferably, a space is provided between the BMS master 41 and the wall of the control box 1 for installation and maintenance, and the equalization module 5 generates heat during operation, so it is necessary to be spaced apart from the BMS master 41.

[0050] Specifically, the front panel 15 is embedded with the button switch 21, the power interface 20, the indicator light 17, the low-voltage communication interface 18 and the diagnostic interface 19. The button switch 21 and the power interface 20 are arranged on one side of the rotary switch 16, and the indicator light 17, the low-voltage communication interface and the diagnostic interface 19 are arranged on the other side. The indicator light 17, the low-voltage communication interface 18 and the diagnostic interface 19 are all in communication connection with the battery management system 4, and the button switch 21 is connected in series between the power interface 20 and the BMS master 41. The signal area and the control area on the front panel are arranged separately, which is more regular, convenient for observation and operation, and can avoid the interference of the communication lines and other lines in the control box.

[0051] Specifically, the BMS master 41 is connected with the collection wire harness 22 and the communication wire harness 23. The collection wire harness 22 and the communication wire harness 23 are arranged separately. The BMS master 41 is in communication with the power interface 20 through the power wire harness 24, and the power wire harness 24 is arranged along the edge of the control box 1. Separate arrangement of the wire harnesses can avoid mutual influence.

[0052] Specifically, the collection wire harness 22 and / or the communication wire harness 23 are provided with arc separation plates between the main circuit switch 9. By arranging the arc separation plates, the collection wire harness 22 / communication wire harness 23 are separated, so as to avoid arc breakdown of the collection wire harness 22 / communication wire harness 23 when the main circuit switch 9 is operated with load. The arc separation plates are made of insulating material.

[0053] Specifically, the battery management system 4 further comprises a temperature sensor 25 and a shunt 26. The shunt 26 is connected in series with the positive electrode circuit 3 or the negative electrode circuit 2. The temperature sensor 25 is arranged in the control box 1. The temperature sensor 25 and the shunt 26 are connected with the communication wire harness 23. The temperature sensor 25 is arranged to monitor the temperature in the control box 1, and the shunt 26 is arranged to collect the current of the control circuit.

[0054] Specifically, the positive fuse 7 and the negative fuse 12 are both provided with micro switches. The micro switches, the positive relay 8 and the negative relay 13 are all in communication connection with the battery management system 4. The main circuit switch 9 is in control connection with the battery management system 4.

[0055] Specifically, the bottom of the positive fuse 7, the bottom of the positive relay 8 and the bottom of the main circuit switch 9 are provided with the first copper bar 29, the bottom of the negative fuse 12, the bottom of the negative relay 13 and the bottom of the main circuit switch 9 are provided with the second copper bar 30, and the first copper bar 29 and / or the second copper bar 30 comprise a soft copper bar. The copper bar is arranged below the components, which ensures good processability of the copper bar and good contact between the copper bar and the components, thereby reducing heat generation.

[0056] Specifically, the front panel 15 is provided with a handle 31, the handle 31 comprises a first handle part and a second handle part, the first handle part is fixedly connected with the front panel 15, and the first handle part is hingedly connected with the second handle part. The hingedly connected first handle part and second handle part facilitate storage and do not affect daily use.

[0057] Specifically, the front panel 15 is provided with a bonding point 32. The bonding point 32 is arranged on the front panel 15, and the connection state of the bonding point 32 can be directly observed.

[0058] Specifically, the front panel 15 is provided with an extension part, and the extension part is provided with a through hole 33. The through hole 33 is used for fixedly connecting the control box 1 with a cabinet.

[0059] The high-voltage control box for liquid cooling of the embodiment is provided with the positive electrode circuit 3, the negative electrode circuit 2 and the battery management system 4, which are integrated in the control box 1, so that the control box 1 is separated from the battery, and the detachable connection between the battery and the control box 1 is realized, thereby making the maintenance of the battery / high-voltage control box more convenient. The positive electrode circuit 3, the negative electrode circuit 2 and the battery management system 4 in the control box 1 are all laid flat in the control box 1, so that the heat generated in the box body can be directly transmitted to the outside through the control box 1, thereby avoiding damage to the control components caused by heat accumulation in the control box 1.

[0060] Embodiment 2

[0061] The high-voltage control box for liquid cooling of the embodiment has substantially the same structure as that of Embodiment 1, and is different from Embodiment 1 in that the front panel 15 is provided with a display module, and the display module is in communication connection with the battery management system 4. The display module can display monitoring data in real time, thereby facilitating maintenance personnel to check the working state of the battery / high-voltage control box for liquid cooling.

[0062] Specifically, the display module is a liquid crystal display screen.

[0063] Embodiment 3

[0064] The high voltage control box for liquid cooling of the embodiment has substantially the same structure as that of the embodiment 1, and is different from the embodiment 1 in that the equalization module 5 is arranged in the negative loop 2, and the equalization module 5 is connected in parallel with the negative relay 13.

[0065] Embodiment 4

[0066] The high voltage control box for liquid cooling of the embodiment has substantially the same structure as that of the embodiment 1, and is different from the embodiment 1 in that the temperature sensor 25 is arranged as a plurality of temperature sensors.

[0067] Specifically, each electronic component in the control box 1 is provided with a separate temperature sensor 25.

[0068] Embodiment 5

[0069] The high voltage battery control system of the embodiment comprises the high voltage control box for liquid cooling of the embodiment 1 / embodiment 2 / embodiment 3 / embodiment 4, and further comprises a battery and a liquid cooling box, wherein the battery is connected in circuit with the high voltage control box for liquid cooling, and the liquid cooling box is arranged in abutment with the high voltage control box for liquid cooling.

[0070] Specifically, the liquid cooling box is arranged in abutment with the bottom of the high voltage control box, and / or the liquid cooling box is arranged in abutment with the top of the high voltage control box for liquid cooling.

[0071] The high voltage battery control system of the embodiment comprises the high voltage control box for liquid cooling of the embodiment 1 / embodiment 2 / embodiment 3 / embodiment 4, and further comprises a battery and a liquid cooling box, wherein the battery is connected in circuit with the high voltage control box for liquid cooling, and the liquid cooling box is arranged in abutment with the high voltage control box for liquid cooling.

[0072] Embodiment 6

[0073] The energy storage system of the embodiment comprises a terminal resistance module and at least two high voltage battery control systems of the embodiment 5, wherein the terminal resistance module is connected with the high voltage battery control system through CAN communication.

[0074] Specifically, based on the characteristics of CAN communication, the terminal resistance module needs to be connected on the communication line.

[0075] Specifically, the terminal resistance module can be connected with the high voltage battery control system in cooperation.

[0076] Specifically, the terminal resistance module is a resistor with a resistance of 120 ohms.

[0077] Specifically, the terminal resistance module can be directly connected with the communication interface of the high voltage battery control system in a detachable manner.

[0078] The energy storage system of the embodiment can be replaced at any position of communication by externally arranging the terminal resistance module and detachably connecting the terminal resistance module with the high-voltage battery control system, and the high-voltage battery control system at the start and end of communication does not need to internally arrange the terminal resistance module, thereby improving the versatility of the high-voltage battery control system and the energy storage system.

[0079] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-pressure control box for liquid cooling, characterized in that, Includes a control box (1), in which a control circuit and a battery management system (4) are laid out flat. The battery management system (4) includes a BMS master controller (41), which is located on the side away from the control element and is located at the rear end of the control box (1). The control circuit includes a positive circuit (3), a negative circuit (2) and a main circuit switch (9). The main circuit switch (9) includes a positive switch and a negative switch. The positive circuit (3) includes a positive input terminal (6), a positive fuse (7), a positive relay (8), a positive switch and a positive output terminal (10) connected in series by a first copper busbar (29). The negative circuit (2) includes a negative input terminal (11), a negative fuse (12), a negative relay (13), a negative switch and a negative output terminal (14) connected in series by a second copper busbar (30). The positive fuse (7), the positive relay (8), the negative fuse (12) and the negative relay (13) are located on one side of the main circuit switch (9), and the BMS master controller (41) is located on the other side of the main circuit switch (9).

2. The high-pressure control box for liquid cooling as described in claim 1, characterized in that, The control box (1) includes a front panel (15), on which a rotary switch (16) is embedded. The rotary switch (16) is connected to the main circuit switch (9) and is located within the projection surface of the main circuit switch (9) on the front panel (15).

3. The high-pressure control box for liquid cooling as described in claim 2, characterized in that, The positive input terminal (6), the positive output terminal (10), the negative input terminal (11), and the negative output terminal (14) are all embedded in the front panel (15). The positive input terminal (6) and the negative input terminal (11) are located on the same side of the rotary switch (16), and the positive output terminal (10) and the negative output terminal (14) are located on the other side of the rotary switch (16).

4. A high-pressure control box for liquid cooling as described in claim 2, characterized in that, The control box (1) is equipped with an equalization module (5), which is located at the rear end of the control box (1). The equalization module (5) and the positive relay (8) are located on the same side of the main circuit switch (9). The equalization module (5) and the positive relay (8) are connected in parallel. The equalization module (5) includes a circulating current relay (27) and an equalization resistor (28) connected in series.

5. A high-pressure control box for liquid cooling as described in claim 4, characterized in that, The front panel (15) is embedded with a push button switch (21), a power interface (20), an indicator light (17), a low-voltage communication interface (18), and a diagnostic interface (19). The push button switch (21) and the power interface (20) are provided on one side of the rotary switch (16), and the indicator light (17), the low-voltage communication interface, and the diagnostic interface (19) are provided on the other side. The indicator light (17), the low-voltage communication interface (18), and the diagnostic interface (19) are all connected to the battery management system (4) for communication. The push button switch (21) is connected in series between the power interface (20) and the BMS main controller (41).

6. A high-pressure control box for liquid cooling as described in claim 5, characterized in that, The BMS main controller (41) is connected to a data acquisition harness (22) and a communication harness (23). The data acquisition harness (22) and the communication harness (23) are routed separately. The BMS main controller (41) is connected to the power interface (20) through a power harness (24). The power harness (24) is routed along the edge of the control box (1).

7. A high-pressure control box for liquid cooling as described in claim 6, characterized in that, An arc-blocking plate is provided between the acquisition harness (22) and / or the communication harness (23) and the main circuit switch (9).

8. A high-pressure control box for liquid cooling as described in claim 6, characterized in that, The battery management system (4) also includes a temperature sensor (25) and a shunt (26). The shunt (26) is connected in series to the positive electrode circuit (3) or the negative electrode circuit (2). The temperature sensor (25) is located in the control box (1). Both the temperature sensor (25) and the shunt (26) are connected to the communication harness (23).

9. A high-pressure control box for liquid cooling as described in any one of claims 2 to 3, characterized in that, Both the positive fuse (7) and the negative fuse (12) are equipped with micro switches. The micro switches, the positive relay (8) and the negative relay (13) are all communicatively connected to the battery management system (4). The main circuit switch (9) is controlled by the battery management system (4).

10. A high-pressure control box for liquid cooling as described in any one of claims 2 to 3, characterized in that, The bottom of the positive fuse (7), the bottom of the positive relay (8), and the bottom of the main circuit switch (9) are all provided with the first copper busbar (29), and the bottom of the negative fuse (12), the bottom of the negative relay (13), and the bottom of the main circuit switch (9) are all provided with the second copper busbar (30). The first copper busbar (29) and / or the second copper busbar (30) include soft copper busbars.

11. A high-pressure control box for liquid cooling as described in claim 2 or 3, characterized in that, The front panel (15) is fitted with a grounding point (32), and / or the front panel (15) is provided with an extension, the extension being provided with a through hole (33).

12. A high-voltage battery control system, characterized in that, The high-voltage control box for liquid cooling, as described in any one of claims 1-11, further includes a battery and a liquid cooling box, wherein the battery is electrically connected to the high-voltage control box for liquid cooling, and the liquid cooling box is fitted and disposed in close contact with the high-voltage control box for liquid cooling.

13. An energy storage system, characterized in that, It includes a terminating resistor module and at least two high-voltage battery control systems as described in claim 12, wherein the terminating resistor module is connected to the high-voltage battery control system via CAN communication.

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