CN116367491A - High-voltage control box for liquid cooling, high-voltage battery control system and energy storage system - Google Patents

High-voltage control box for liquid cooling, high-voltage battery control system and energy storage system Download PDF

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Publication number
CN116367491A
CN116367491A CN202211638275.9A CN202211638275A CN116367491A CN 116367491 A CN116367491 A CN 116367491A CN 202211638275 A CN202211638275 A CN 202211638275A CN 116367491 A CN116367491 A CN 116367491A
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China
Prior art keywords
control box
liquid cooling
voltage
switch
battery
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CN202211638275.9A
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Chinese (zh)
Inventor
孙慧
廖宇梨
龚木红
肖雄
肖东明
杨美燕
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Hubei Eve Power Co Ltd
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Hubei Eve Power Co Ltd
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Priority to CN202211638275.9A priority Critical patent/CN116367491A/en
Publication of CN116367491A publication Critical patent/CN116367491A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

The invention 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, wherein the high-voltage control box for liquid cooling comprises a control box, and a control loop and a battery management system are horizontally arranged in the control box; the high-voltage battery control system comprises a high-voltage control box for liquid cooling, a battery and a liquid cooling box. The control loop and the battery management system are integrated in the control box, so that the control box is separated from the battery, the detachable connection of the battery and the control box is realized, and the battery/high-voltage control box is more convenient to maintain; the control loop and the battery management system in the control box are tiled in the control box, so that heat generated in the box body can be directly transmitted to the outside through the control box, and the 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 used as an independent original piece to be detachably connected with the battery, so that the battery and the high-voltage control box are modularized, and the high-voltage control box is easy to replace and maintain.

Description

High-voltage control box for liquid cooling, high-voltage battery control system and energy storage system
Technical Field
The invention 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
The high-voltage battery system, namely commonly called a battery pack, is generally formed by connecting battery modules in a serial/parallel connection mode and sealing the battery modules into a whole by a shell meeting various requirements. However, in practice, the high-voltage battery system needs to be equipped with accessories such as a Battery Management System (BMS), a cooling system, and a part of low-voltage/high-voltage harness in addition to the battery pack, but is usually installed in an automobile as a whole for ensuring safety and sealability, and is generally regarded as an entire battery pack from the external appearance to the general user.
At present, a battery pack integrating accessories such as a Battery Management System (BMS), a cooling system, part of low-voltage/high-voltage wire harnesses and the like shares a set of heat dissipation system with a battery, and the battery management system has poor heat dissipation effect, is easy to generate heat accumulation at the battery management system and has potential safety hazards; a Battery Management System (BMS) integrally formed with the battery is not detachable, and the battery is difficult to replace.
Therefore, a technical solution is needed to solve the technical problems of poor heat dissipation and difficult battery replacement of the existing battery management system.
Disclosure of Invention
The invention aims at: aiming at the technical problems that the existing battery management system is poor in heat dissipation and batteries are difficult to replace, the high-voltage control box for liquid cooling, the high-voltage battery control system and the energy storage system are provided.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the high-pressure control box for liquid cooling comprises a control box, wherein a control loop and a battery management system are arranged in the control box in a flat-laying mode.
According to the high-voltage control box for liquid cooling, the control loop and the battery management system are integrated in the control box, so that the control box and the battery are arranged separately, the detachable connection of the battery and the control box is realized, and the battery/high-voltage control box is more convenient to maintain; the control loop and the battery management system in the control box are tiled in the control box, so that heat generated in the box body can be directly transferred to the outside through the control box, and the damage of a control element caused by heat accumulation in the control box is avoided.
As a preferable scheme of the invention, the control loop comprises a positive pole loop, a negative pole loop and a main loop switch, the main loop switch comprises a positive pole switch and a negative pole switch, the positive pole loop comprises a positive pole input end, a positive fuse, a positive relay, a positive pole switch and a positive pole output end which are sequentially connected in series by adopting a first copper bar, and the negative pole loop comprises a negative pole input end, a negative fuse, a negative relay, a negative pole switch and a negative pole output end which are sequentially connected in series by adopting a second copper bar. The control loop is connected through copper bars, and the sectional area of each copper bar is 3 mm or 25mm 2 In particular, the cross-sectional area of the copper bar connected with the fuse is 5 x 25mm 2 And the heat dissipation area of the copper bar is increased.
As a preferable scheme of the invention, the control box comprises a front panel, the front panel is embedded with a knob switch, the knob switch is in control connection with the main loop switch, and the knob switch is arranged in a projection plane of the front panel. The knob switch is embedded on the front panel and is directly connected with the main loop switch, so that the main loop switch is directly controlled, and the knob switch can be used for manually controlling the main loop switch.
As a preferable scheme of the invention, the positive electrode input end, the positive electrode output end, the negative electrode input end and the negative electrode output end are all embedded in the front panel, the positive electrode input end and the negative electrode input end are positioned on the same side of the knob switch, and the positive electrode output end and the negative electrode output end are positioned on the other side of the knob switch. The positive electrode input end and the negative electrode input end are arranged on the same side, the positive electrode output end and the negative electrode output end are arranged on the same side, wiring is more convenient, wiring confusion can be avoided, and the control box is more convenient to install and set.
As a preferred scheme of the present invention, the battery management system includes a BMS master control, wherein the positive fuse, the positive relay, the negative fuse and the negative relay are located at one side of the main loop switch, and the BMS master control is located at the other side of the main loop switch. The BMS master control is arranged on one side far away from the control element, so that electromagnetic interference of the control element to the BMS master control is avoided.
As a preferable scheme of the invention, 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 relay are positioned at the same side of the main loop switch, the equalization module is connected in parallel with the positive relay, and the equalization module comprises a circulating relay and an equalization resistor which are connected in series. The arrangement of the equalization module can reduce the circulation influence among the battery clusters.
As a preferred embodiment of the present invention, the BMS master is located at the rear end of the control box. The balancing module generates heat during operation, so that the balancing module is arranged at intervals with the BMS master control and the balancing module.
As a preferable scheme of the invention, the front panel is embedded with a button switch, a power interface, an indicator light, a low-voltage communication interface and a diagnosis interface, one side of the button switch is provided with the button switch and the power interface, the other side of the button switch is provided with the indicator light, the low-voltage communication interface and the diagnosis interface, the indicator light, the low-voltage communication interface and the diagnosis interface are all in communication connection with the battery management system, and the button switch is connected between the power interface and the BMS main control in series. The signal area and the control area on the front panel are separated, so that the signal area and the control area are obviously separated, misoperation is avoided, meanwhile, wires are separated in the control box, and signal interference can be avoided.
As a preferable scheme of the invention, the BMS main control is connected with an acquisition wire harness and a communication wire harness, the acquisition wire harness and the communication wire harness are separated, the BMS main control is communicated with the power interface through a power wire harness, and the power wire harness is routed along the edge of the control box. The wiring is separated to avoid mutual influence between the wiring harnesses, electromagnetic interference is reduced, and the accuracy of acquisition and communication is improved.
As a preferable scheme of the invention, an arc barrier is arranged between the acquisition wire harness and/or the communication wire harness and the main loop switch. Through setting up the arc barrier, separate collection pencil and communication pencil, avoid producing electric arc breakdown and gather pencil and communication pencil when taking load operation main loop switch, the arc barrier is made for insulating material.
As a preferable scheme of the invention, the battery management system further comprises a temperature sensor and a current divider, wherein the current divider is connected in series with the positive electrode loop or the negative electrode loop, the temperature sensor is arranged in a control box, and the temperature sensor and the current divider are both connected with the communication wire harness. The temperature in the control box is monitored by setting a temperature sensor, and the current of the control loop is collected by setting a shunt.
As a preferable scheme of the invention, the positive fuse and the negative fuse are respectively provided with a micro switch, the micro switches, the positive relay and the negative relay are respectively in communication connection with the battery management system, and the main loop switch is in control connection with the battery management system. The relay is controlled by the micro switch, so that the relay and the main loop switch are controlled by the battery management system.
As a preferable scheme of the invention, the bottom of the positive fuse, the bottom of the positive relay and the bottom of the main loop 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 loop switch are all provided with the second copper bar, and the first copper bar and/or the second copper bar comprise soft copper bars. The copper bars are arranged below the components, so that the copper bars and the components are well contacted, heating is reduced, better moldability is provided for the soft copper bars, and the arrangement of the electronic components in the control box is conveniently realized.
As a preferred embodiment of the present invention, the front panel is provided with bonding points in an embedding manner, and/or the front panel is provided with an extension portion, and the extension portion is provided with a through hole. The bonding points are arranged on the front panel, so that the connection state of the bonding points can be directly seen; the through hole is used for being fixedly connected with the cabinet and fixing 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, wherein the battery is connected with the high-voltage control box for liquid cooling through a circuit, and the liquid cooling box is attached to the high-voltage control box for liquid cooling.
According to the high-voltage battery control system, the high-voltage control box for liquid cooling is used as an independent original piece and is detachably connected with the battery, so that the battery and the high-voltage control box are modularized, the battery/high-voltage control box is easy to replace and maintain, and the liquid cooling box and the high-voltage control box for liquid cooling are attached to each other, so that heat in the high-voltage control box for liquid cooling can be taken away in time when liquid in the liquid cooling box flows.
An energy storage system comprises a terminal resistance module and at least two high-voltage battery control systems, wherein the terminal resistance module is in communication connection with the high-voltage battery control systems through CAN.
According to the energy storage system, the terminal resistor module is arranged externally, so that the terminal resistor module is detachably connected with the high-voltage control box for liquid cooling, the high-voltage battery control system can be replaced to any position of communication at will, the high-voltage battery control system at the beginning end and the end of communication does not need to be provided with the terminal resistor module, and the universality of the high-voltage battery control system and the energy storage system is improved.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the high-voltage control box for liquid cooling, the control loop and the battery management system are integrated in the control box, so that the control box and the battery are arranged separately, the detachable connection of the battery and the control box is realized, and the battery/high-voltage control box is more convenient to maintain; the control loop and the battery management system in the control box are tiled in the control box, so that heat generated in the box body can be directly transferred to the outside through the control box, and the damage of a control element caused by heat accumulation in the control box is avoided.
2. According to the high-voltage control box for liquid cooling, disclosed by the invention, 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 a battery, an environment in which air cooling cannot be used is met through a liquid cooling heat dissipation mode, and the high-voltage control box has good economic value.
3. According to the high-voltage battery control system, the high-voltage control box for liquid cooling is used as an independent original piece and is detachably connected with the battery, so that the battery and the high-voltage control box are modularized, the battery/high-voltage control box is easy to replace and maintain, and the liquid cooling box and the high-voltage control box for liquid cooling are attached to each other, so that heat in the high-voltage control box for liquid cooling can be taken away in time when liquid in the liquid cooling box flows.
4. According to the energy storage system, the terminal resistor module is arranged externally, and the terminal resistor module is detachably connected with the high-voltage battery control system, so that the high-voltage battery control system can be replaced to any position of communication at will, the high-voltage battery control system at the beginning end and the ending end of communication does not need to be provided with the terminal resistor module, and the universality of the high-voltage battery control system and the energy storage system is improved.
Drawings
FIG. 1 is a schematic view of the internal structure of a high-pressure control box for liquid cooling;
FIG. 2 is a schematic view of the structure of a front panel of a high-pressure control box for liquid cooling;
FIG. 3 is a schematic view showing the external appearance of a high-pressure control box for liquid cooling;
FIG. 4 is a schematic diagram of a high voltage control circuit of a high voltage control box for liquid cooling;
fig. 5 is a schematic view of a connection terminal of the BMS master according to the present invention;
fig. 6 is a schematic diagram of the circuit control of the battery management system of the present invention.
Icon:
1-control box, 2-negative pole return circuit, 3-positive pole return circuit, 4-battery management system, 5-balanced module, 6-positive pole input, 7-positive fuse, 8-positive relay, 9-main return circuit switch, 10-positive pole output, 11-negative pole input, 12-negative fuse, 13-negative relay, 14-negative pole output, 15-front panel, 16-knob switch, 17-pilot lamp, 18-low voltage communication interface, 19-diagnostic interface, 20-power interface, 21-button switch, 22-acquisition harness, 23-communication harness, 24-power harness, 25-temperature sensor, 26-shunt, 27-loop current relay, 28-balanced resistor, 29-first copper bar, 30-second copper bar, 31-handle, 32-bonding point, 33-through hole, 41-BMS master.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The high-pressure control box for liquid cooling as shown in fig. 1-6 comprises a control box 1, wherein a control loop and a battery management system 4 are horizontally arranged in the control box 1.
Specifically, the control circuit includes positive circuit 3, negative circuit 2 and main circuit switch 9, main circuit switch 9 includes positive switch and negative switch, positive circuit 3 is including adopting positive input 6, positive fuse 7, positive relay 8, positive switch and the positive output 10 that first copper bar 29 established ties in proper order, negative circuit 2 includes adopting negative input 11, negative fuse (12), negative relay 13, negative switch and negative output 14 that second copper bar 30 established ties in proper order. The control loop is connected through copper bars, and the sectional area of each copper bar is 3 mm or 25mm 2 In particular, the cross-sectional area of the copper bar connected with the fuse is 5 x 25mm 2 And the heat dissipation area of the copper bar is increased.
Specifically, the control box 1 includes 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 loop switch 9, and the knob switch 16 is disposed in the projection plane of the main loop switch 9 on the front panel 15. The knob switch 16 is embedded on the front panel 15, and the knob switch 16 is directly connected with the main circuit switch 9, so that the main circuit switch 9 can be directly controlled, and the main circuit switch 9 can be manually controlled.
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. The positive electrode input end 6 and the negative electrode input end 11 are arranged on the same side, the positive electrode output end 10 and the negative electrode output end 14 are arranged 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.
Specifically, along the height direction of the control box 1, the setting position of the positive electrode input end 6 is lower than the setting position of the negative electrode input end 11, and the setting position of the positive electrode output end is lower than the setting position of the negative electrode output end 14. The positive electrode input end 6, the positive electrode output end 10, the negative electrode input end 11 and the negative electrode output end 14 are arranged in a specific mode, the arrangement mode is matched with the wire outlet mode of the battery, and the external wiring harness is convenient to wire.
Specifically, the battery management system 4 includes a BMS master 41, the positive fuse 7, the positive relay 8, the negative fuse 12 and the negative relay 13 are located at one side of the main loop switch 9, and the BMS master 41 is located at the other side of the main loop switch 9. The BMS master control 41 is arranged on one side far away from the control element, so that the interference of the electromagnetic waves generated by the operation of the control element to the BMS master control 41 is avoided.
Specifically, an equalization module 5 is disposed in the control box 1, the equalization module 5 is disposed at the rear end of the control box 1, the equalization module 5 and the positive relay 8 are located at the same side of the main loop switch 9, the equalization module 5 is connected in parallel with the positive relay 8, and the equalization module 5 comprises a circulating relay 27 and an equalization resistor 28 which are connected in series. The equalization module 5 is provided to reduce the effect of circulation between the battery clusters.
Specifically, the BMS master 41 is located at the rear end of the control box 1. The BMS main control 41 and the balancing module 5 are adjacently arranged, preferably, an interval is arranged between the BMS main control 41 and the wall of the control box 1 for convenient installation and maintenance, and the balancing module 5 generates heat during operation, so that the BMS main control 41 is arranged at intervals.
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 diagnosis interface 19, one side of the button switch 16 is provided with the button switch 21 and the power interface 20, the other side is provided with the indicator light 17, the low-voltage communication interface and the diagnosis interface 19, the indicator light 17, the low-voltage communication interface 18 and the diagnosis 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 main control 41. The signal area and the control area on the front panel are separated, so that the arrangement is more regular, the observation and the operation are convenient, meanwhile, the cross wiring of the communication line and other lines in the control box can be avoided, and the interference is avoided.
Specifically, the BMS main control 41 is connected with an acquisition wire harness 22 and a communication wire harness 23, the acquisition wire harness 22 and the communication wire harness 23 are separated and wired, the BMS main control 41 and the power interface 20 are communicated through a power wire harness 24, and the power wire harness 24 is wired along the edge of the control box 1. The separate wiring avoids mutual influence between the wire harnesses.
Specifically, an arc barrier is disposed between the collection harness 22 and/or the communication harness 23 and the main circuit switch 9. The collection wire harness 22/communication wire harness 23 is separated by the arc-isolating plate, so that the arc breakdown of the collection wire harness 22/communication wire harness 23 is avoided when the main loop switch 9 is operated under load, and the arc-isolating plate is made of insulating materials.
Specifically, the battery management system 4 further includes a temperature sensor 25 and a current divider 26, the current divider 26 is connected in series with the positive electrode loop 3 or the negative electrode loop 2, the temperature sensor 25 is disposed in the control box 1, and the temperature sensor 25 and the current divider 26 are both connected with the communication harness 23. The temperature in the control box 1 is monitored by providing a temperature sensor 25, and the current of the control loop is collected by providing a shunt 26.
Specifically, the positive fuse 7 and the negative fuse 12 are both provided with micro switches, the positive relay 8 and the negative relay 13 are all in communication connection with the battery management system 4, and the main loop switch 9 is in control connection with the battery management system 4.
Specifically, the bottom of the positive fuse 7, the bottom of the positive relay 8 and the bottom of the main loop switch 9 are all 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 loop switch 9 are all provided with the second copper bar 30, and the first copper bar 29 and/or the second copper bar 30 comprise soft copper bars. The copper bars are arranged below the components, so that the copper bars are guaranteed to have good machinability, the copper bars are guaranteed to be in good contact with the components, and heating is reduced.
Specifically, the front panel 15 is provided with a handle 31, the handle 31 includes a first handle portion and a second handle portion, the first handle portion is fixedly connected with the front panel 15, and the first handle portion is hinged with the second handle portion. The portable is convenient for carry, and first handle portion and the second handle portion of articulated connection are convenient for accomodate, do not influence daily use.
Specifically, the front panel 15 is embedded with the bonding point 32. The bonding point 32 is provided on the front panel 15, and the connection state of the bonding point 32 can be directly seen.
Specifically, the front panel 15 is provided with an extension portion, and the extension portion is provided with a through hole 33. The through hole 33 is used for fixedly connecting with the cabinet and fixing the control box 1.
According to the high-voltage control box for liquid cooling, the positive electrode loop 3, the negative electrode loop 2 and the battery management system 4 are integrated in the control box 1, so that the control box 1 is separated from a battery, the detachable connection of the battery and the control box 1 is realized, and the maintenance of the battery/high-voltage control box is more convenient; the positive pole return circuit 3, negative pole return circuit 2 and battery management system 4 in the control box 1 all tile in control box 1, make the heat that produces in the box can directly transmit the external world through control box 1, avoid the control element damage that the heat accumulation leads to in the control box 1.
Example 2
In the high-pressure control box for liquid cooling of this embodiment, the structure is substantially the same as that of embodiment 1, and the difference is that the front panel 15 is fitted with a display module, and the display module is connected to the battery management system 4 in a communication manner. The scarf display module can display monitoring data in real time, so that maintenance personnel can check the working state of the battery/high-voltage control box for liquid cooling conveniently.
Specifically, the display module is a liquid crystal display.
Example 3
In the high-voltage control box for liquid cooling of this embodiment, the configuration is substantially the same as that of embodiment 1, and the equalization module 5 is provided in the negative electrode circuit 2, and the equalization module 5 is connected in parallel with the negative relay 13, unlike embodiment 1.
Example 4
In the high-pressure control box for liquid cooling of the present embodiment, the configuration is substantially the same as that of embodiment 1, and the number of the temperature sensors 25 is different from that of embodiment 1.
Specifically, each electronic component in the control box 1 is provided with a separate temperature sensor 25.
Example 5
The high-voltage battery control system of the embodiment comprises a high-voltage control box for liquid cooling in embodiment 1, embodiment 2, embodiment 3 and embodiment 4, and further comprises a battery and a liquid cooling box, wherein the battery is in circuit connection with the high-voltage control box for liquid cooling, and the liquid cooling box is attached to the high-voltage control box for liquid cooling.
Specifically, the liquid cooling box with the bottom laminating setting of high pressure control sum, and/or, the liquid cooling box with the top laminating setting of high pressure control box for the liquid cooling.
According to the high-voltage battery control system, the high-voltage control box for liquid cooling is used as an independent original piece and is detachably connected with the battery, so that the battery and the high-voltage control box are modularized, the battery/high-voltage control box is easy to replace, maintenance is easy, and heat in the high-voltage control box for liquid cooling can be timely taken away when liquid in the liquid cooling box flows through the lamination of the liquid cooling box and the high-voltage control box for liquid cooling.
Example 6
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 systems through CAN communication.
Specifically, based on the characteristics of CAN communication, a termination resistor module needs to be connected to a communication line.
Specifically, the terminal resistor module can be connected with the high-voltage battery control system in a matched mode.
Specifically, the terminal resistor module is a resistor with a resistance value of 120 ohms.
Specifically, the terminal resistor module can be directly detachably connected with the communication interface of the high-voltage battery control system.
According to the energy storage system, the terminal resistor module is arranged externally, and the terminal resistor module is detachably connected with the high-voltage battery control system, so that the high-voltage battery control system for liquid cooling can be replaced to any position of communication at will, the high-voltage battery control system at the beginning end and the end of communication does not need to be internally provided with the terminal resistor module, and the universality of the high-voltage battery control system and the energy storage system is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (16)

1. The high-pressure control box for liquid cooling is characterized by comprising a control box (1), wherein a control loop and a battery management system (4) are arranged in the control box (1) in a flat way.
2. The high-voltage control box for liquid cooling according to claim 1, wherein the control circuit comprises a positive electrode circuit (3), a negative electrode circuit (2) and a main circuit switch (9), the main circuit switch (9) comprises a positive electrode switch and a negative electrode switch, the positive electrode circuit (3) comprises a positive electrode input end (6), a positive fuse (7), a positive relay (8), a positive electrode switch and a positive electrode output end (10) which are sequentially connected in series by adopting a first copper bar (29), and the negative electrode circuit (2) comprises a negative electrode input end (11), a negative fuse (12), a negative relay (13), a negative electrode switch and a negative electrode output end (14) which are sequentially connected in series by adopting a second copper bar (30).
3. The high-voltage control box for liquid cooling according to claim 2, wherein the control box (1) comprises a front panel (15), a knob switch (16) is embedded in the front panel (15), the knob switch (16) is in control connection with the main loop switch (9), and the knob switch (16) is arranged in a projection plane of the main loop switch (9) on the front panel (15).
4. A high-voltage control box for liquid cooling according to claim 3, wherein the positive electrode input end (6), the positive electrode output end (10), the negative electrode input end (11) and the negative electrode output end (14) are all embedded in the front panel (15), the positive electrode input end (6) and the negative electrode input end (11) are located on the same side of the knob switch (16), and the positive electrode output end (10) and the negative electrode output end (14) are located on the other side of the knob switch (16).
5. A high-voltage control box for liquid cooling according to claim 3, characterized in that the battery management system (4) comprises a BMS master (41), the positive fuse (7), the positive relay (8), the negative fuse (12) and the negative relay (13) are located at one side of the main loop switch (9), and the BMS master (41) is located at the other side of the main loop switch (9).
6. The high-voltage control box for liquid cooling according to claim 5, wherein an equalization module (5) is arranged in the control box (1), 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 positioned at the same side of the main loop switch (9), the equalization module (5) is connected in parallel with the positive relay (8), and the equalization module (5) comprises a loop relay (27) and an equalization resistor (28) which are connected in series.
7. The high-pressure control box for liquid cooling according to claim 6, wherein the BMS master control (41) is located at the rear end of the control box (1).
8. The high-voltage control box for liquid cooling according to any one of claims 5 to 7, wherein the front panel (15) is embedded with a button switch (21), a power interface (20), an indicator light (17), a low-voltage communication interface (18) and a diagnosis interface (19), one side of the knob switch (16) is provided with the button switch (21) and the power interface (20), the other side is provided with the indicator light (17), the low-voltage communication interface and the diagnosis interface (19), the indicator light (17), the low-voltage communication interface (18) and the diagnosis 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 main control (41).
9. The high-voltage control box for liquid cooling according to claim 8, wherein the BMS main control (41) is connected with an acquisition wire harness (22) and a communication wire harness (23), the acquisition wire harness (22) and the communication wire harness (23) are separated, the BMS main control (41) is communicated with the power interface (20) through a power wire harness (24), and the power wire harness (24) is routed along the edge of the control box (1).
10. The high-voltage control box for liquid cooling according to claim 9, wherein an arc barrier is provided between the collection harness (22) and/or the communication harness (23) and the main circuit switch (9).
11. The high-voltage control box for liquid cooling according to claim 9, wherein the battery management system (4) further comprises a temperature sensor (25) and a current divider (26), the current divider (26) is connected in series with the positive electrode loop (3) or the negative electrode loop (2), the temperature sensor (25) is arranged in the control box (1), and the temperature sensor (25) and the current divider (26) are both connected with the communication harness (23).
12. The high-voltage control box for liquid cooling according to any one of claims 2 to 4, wherein the positive fuse (7) and the negative fuse (12) are each provided with a micro switch, the positive relay (8) and the negative relay (13) are each in communication connection with the battery management system (4), and the main loop switch (9) is in control connection with the battery management system (4).
13. The high-voltage control box for liquid cooling according to any one of claims 2 to 4, wherein the first copper bar (29) is provided at the bottom of the positive fuse (7), the bottom of the positive relay (8) and the bottom of the main circuit switch (9), the second copper bar (30) is provided at the bottom of the negative fuse (12), the bottom of the negative relay (13) and the bottom of the main circuit switch (9), and the first copper bar (29) and/or the second copper bar (30) comprise soft copper bars.
14. A high-pressure control box for liquid cooling according to claim 3 or 4, characterized in that the front panel (15) is provided with an engagement point (32) and/or that the front panel (15) is provided with an extension provided with a through hole (33).
15. A high-voltage battery control system, which is characterized by comprising the high-voltage control box for liquid cooling according to any one of claims 1-14, a battery and a liquid cooling box, wherein the battery is in circuit connection with the high-voltage control box for liquid cooling, and the liquid cooling box is attached to the high-voltage control box for liquid cooling.
16. An energy storage system comprising a termination resistance module and at least two high voltage battery control systems according to claim 15, wherein the termination resistance module is in communication connection with the high voltage battery control system via CAN.
CN202211638275.9A 2022-12-20 2022-12-20 High-voltage control box for liquid cooling, high-voltage battery control system and energy storage system Pending CN116367491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211638275.9A CN116367491A (en) 2022-12-20 2022-12-20 High-voltage control box for liquid cooling, high-voltage battery control system and energy storage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211638275.9A CN116367491A (en) 2022-12-20 2022-12-20 High-voltage control box for liquid cooling, high-voltage battery control system and energy storage system

Publications (1)

Publication Number Publication Date
CN116367491A true CN116367491A (en) 2023-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211638275.9A Pending CN116367491A (en) 2022-12-20 2022-12-20 High-voltage control box for liquid cooling, high-voltage battery control system and energy storage system

Country Status (1)

Country Link
CN (1) CN116367491A (en)

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