Cabinet structure and battery system

Abstract

The utility model relates to the technical field of batteries, in particular to a cabinet body structure and a battery system, a battery cabinet body is provided with a mounting cavity, a connecting port and an inserting port, the connecting port and the inserting port are oppositely arranged and are both communicated with the mounting cavity, when a battery module is assembled, the battery module can be inserted into the mounting cavity through the inserting port, and the mounting cavity is provided with the connecting port and the inserting port. The connecting plate is arranged at the connecting port, the connecting plate is provided with a communication interface, a high-voltage interface and a cooling interface, and the battery module in the mounting cavity can be directly connected with the communication interface, the high-voltage interface and the cooling interface by moving towards the connecting plate, so that high-voltage conduction, low-voltage communication and connection between the cooling interface and the battery module can be realized; according to the battery system, the cabinet body structure is arranged, and the battery module can be connected with each communication interface, each high-voltage interface and each cooling interface only by inserting the battery module towards the direction of the connecting plate, so that each interface does not need to be independently mounted, and convenience is provided for the assembly of the battery system.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and particularly relates to a cabinet structure and a battery system. Background Art

[0002] The battery power system has the advantages of high energy conversion efficiency, high environmental affinity, small volume, flexible installation location, short construction period, and low maintenance cost, and is the future development trend of power sources. A battery cabinet with the functions of storing and outputting electric energy mainly consists of lithium battery monomers, battery boxes, low-voltage lines, high-voltage busbars, etc.

[0003] For example, a standard cabinet of a battery energy storage system disclosed in a patent document with the publication number of CN204442022U includes a lithium-ion battery pack, a standard cabinet body, a battery management system, an active equalization module, and a data display screen. The supporting lithium-ion battery pack is installed and fixed on the guide rail of the standard cabinet body, and single batteries are connected by flexible copper bars; a battery management system and an active equalization module are equipped; the state information of the battery is displayed by a display screen on the front of the cabinet body; in addition, the cabinet is equipped with high-voltage aviation connectors as interfaces for electric energy input and output, and low-voltage aviation connectors as communication interfaces.

[0004] For the existing cabinet structure and battery system, high-voltage conduction, low-voltage communication, etc. between battery packs are all connected and fixed by independent and dispersed interfaces. The connection and fixing efficiency of each interface is low, and there is a certain danger. The later maintenance is cumbersome, and it requires installers and maintainers to have high professionalism. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and provide a cabinet structure and a battery system to solve the technical problem of difficult installation of the existing battery system.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, the utility model provides a cabinet structure, including:

[0008] A battery cabinet body, which is provided with an installation cavity, a connection port and an insertion port. The connection port and the insertion port are oppositely arranged and both communicate with the installation cavity. The insertion port is for a battery module to be inserted into the installation cavity; and

[0009] A connection plate, which is installed at the connection port. The connection plate is provided with a communication interface, a high-voltage interface and a cooling interface. The communication interface, the high-voltage interface and the cooling interface can be simultaneously inserted by the battery module sliding towards the connection plate.

[0010] In some embodiments, the installation cavity is provided with a plurality of spaced-apart sub-cavities, and each of the sub-cavities is respectively used for installing single cells of each battery module.

[0011] In some embodiments, the cabinet structure further includes a coolant unit, and the coolant unit is connected to the cooling interface for cooling the battery module through coolant.

[0012] In some embodiments, the cooling interface includes a plurality of coolant inlets and a plurality of coolant outlets, and each of the coolant inlets and each of the coolant outlets are respectively communicated with each of the sub-cavities. The coolant unit includes a coolant inlet pipe and a coolant outlet pipe. The coolant inlet pipe is connected to each of the coolant inlets, and the coolant outlet pipe is connected to each of the coolant outlets.

[0013] In some embodiments, the coolant inlet pipe includes a main inlet pipe and a plurality of inlet branch pipes, and each of the inlet branch pipes is respectively connected to each of the coolant inlets. The main inlet pipe is connected to each of the inlet branch pipes.

[0014] In some embodiments, the coolant outlet pipe includes a main outlet pipe and a plurality of outlet branch pipes, and each of the outlet branch pipes is respectively connected to each of the coolant outlets. The main outlet pipe is connected to each of the outlet branch pipes.

[0015] In some embodiments, a plurality of high-voltage interfaces are provided, and each of the high-voltage interfaces is respectively communicated with each of the sub-cavities. The cabinet structure further includes a plurality of conductive bars, and each of the conductive bars is respectively connected to two adjacent high-voltage interfaces.

[0016] In some embodiments, a plurality of communication interfaces are provided, and each of the communication interfaces is respectively communicated with each of the sub-cavities. The cabinet structure further includes a plurality of low-voltage communication lines, and each of the low-voltage communication lines is respectively connected to two adjacent communication interfaces.

[0017] In a second aspect, the present invention further provides a battery system, including a battery module and the above-mentioned cabinet structure. The battery module is inserted into the installation cavity through the insertion port and is slidably connected to the communication interface, the high-voltage interface, and the cooling interface by facing the connection plate.

[0018] In some embodiments, the battery module includes a plurality of battery boxes, and single cells are provided in the battery boxes. Each of the battery boxes is respectively slidably connected to each of the sub-cavities.

[0019] Compared with the prior art, the cabinet structure provided by the present utility model includes a battery cabinet body and an adapter plate. The battery cabinet body is provided with an installation cavity, an interface connection port, and an insertion port. The interface connection port and the insertion port are oppositely arranged and both communicate with the installation cavity. When assembling the battery module, the battery module can be inserted into the installation cavity through the insertion port. The adapter plate is installed at the interface connection port and is provided with a communication interface, a high-voltage interface, and a cooling interface. The battery module in the installation cavity can directly form connections with the communication interface, the high-voltage interface, and the cooling interface by moving towards the adapter plate, thus realizing the connections of high-voltage conduction, low-voltage communication, and the cooling interface with the battery module. By setting this cabinet structure in the battery system, only by inserting the battery module towards the adapter plate, the connections of the battery module with each communication interface, high-voltage interface, and cooling interface can be achieved, so that there is no need to install each interface separately, which provides convenience for the assembly of the battery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the cabinet structure provided by an embodiment of the present utility model;

[0021] Figure 2 is another schematic structural diagram of the cabinet structure provided by an embodiment of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the battery system provided by an embodiment of the present utility model;

[0023] Figure 4 is an exploded view of the battery system provided by an embodiment of the present utility model.

[0024] Among them, each reference numeral in the drawings:

[0025] 10 - battery cabinet body, 11 - installation cavity, 12 - insertion port

[0026] 13 - interface connection port, 20 - adapter plate, 21 - communication interface

[0027] 22 - high-voltage interface, 23 - cooling interface, 30 - coolant unit

[0028] 31 - coolant inlet pipe, 32 - coolant outlet pipe, 40 - conductive bar

[0029] 50 - low-voltage communication line, 60 - battery module, 61 - battery box

[0030] 111 - sub-cavity, 112 - sliding support, 231 - coolant inlet

[0031] 232 - coolant outlet, 311 - main inlet pipe, 312 - inlet branch pipe

[0032] 321 - main outlet pipe, 322 - outlet branch pipe, 611 - handle

[0033] 612 - Liquid inlet 613 - Liquid outlet 614 - Voltage output connector

[0034] 615 - Communication connector. Specific implementation manner

[0035] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] In order to solve the technical problem that in the prior art, there are a large number of interfaces such as high - voltage conduction and low - voltage communication for connecting the battery system and the battery module, making the installation difficulty of each interface large, the embodiment of the present utility model provides a cabinet structure and a battery system. Through the setting of the cabinet structure, the connection between the battery module and each interface can be realized only during the process of inserting the battery module, and the technical problem of large installation difficulty of the battery system in the prior art can be solved.

[0037] As Figures 1-4 shown, the cabinet structure provided by the embodiment of the present utility model includes a battery cabinet body 10 and an adapter plate 20. The battery cabinet body 10 is provided with an installation cavity 11, an insertion port 12 and an interface 13. The insertion port 12 and the interface 13 are oppositely arranged and both communicate with the installation cavity 11. The insertion port 12 is for the battery module 60 to be inserted into the installation cavity 11; the adapter plate 20 is installed on the interface 13. The adapter plate 20 is provided with a communication interface 21, a high - voltage interface 22 and a cooling interface 23. The communication interface 21, the high - voltage interface 22 and the cooling interface 23 can be simultaneously inserted by the battery module 60 sliding towards the adapter plate 20.

[0038] Specifically, the cabinet structure is composed of the battery cabinet body 10 and the adapter plate 20. The battery cabinet body 10 is provided with an installation cavity 11, an interface 13 and an insertion port 12. The interface 13 and the insertion port 12 are oppositely arranged and both communicate with the installation cavity 11. When assembling the battery module 60, the battery module 60 can be inserted into the installation cavity 11 through the insertion port 12. The adapter plate 20 is installed on the interface 13. The adapter plate 20 is provided with a communication interface 21, a high - voltage interface 22 and a cooling interface 23. The battery module 60 in the installation cavity 11 can directly form connections with the communication interface, the high - voltage interface 22 and the cooling interface 23 by moving towards the adapter plate 20, thus realizing the connections of high - voltage conduction, low - voltage communication and the cooling interface 23 with the battery module 60, and thus eliminating the need for separate installation of each interface, providing convenience for the assembly of the battery system.

[0039] It can be understood that the number of installation cavities 11 can be adaptively set according to the number of battery modules 60 to be installed. Each installation cavity 11 can be a cavity structure for installing only a battery module 60 formed by a single battery or for installing a battery structure formed by multiple single batteries.

[0040] As Figure 1 and 3 -4 shows, in this embodiment, the number of installation cavities 11 is two. The two installation cavities 11 are arranged at intervals, and the two installation cavities 11 are used to install two groups of battery modules 60.

[0041] As Figure 1 and 3 -4 shows, in this embodiment, the installation cavity 11 is provided with a number of spaced sub-cavities 111. Each sub-cavity 111 is respectively used for installing the single batteries of each battery module 60. Specifically, each sub-cavity 111 can be respectively used for installing a battery module 60 formed by multiple single batteries. When installing the battery module 60, only the single batteries of the battery module 60 need to be respectively inserted into each sub-cavity 111.

[0042] As Figure 1 and 3 -4 shows, in this embodiment, the side wall of the installation cavity 11 is provided with a sliding support frame 112. The sliding support frame 112 divides the installation cavity 11 to form each sub-cavity 111. When inserting each single battery, only need to place each single battery on the sliding support frame 112, and then slide it in the direction of the connection plate 20 through the sliding support frame 112, which provides convenience for the installation of the battery module 60.

[0043] It can be understood that the connection plate 20 can be a plate body made of any non-conductive insulating material.

[0044] In this embodiment, the connection plate 20 is made of plastic material.

[0045] In this embodiment, both the connection port 13 and the insertion port 12 are open structures formed on both sides of the battery cabinet body 10.

[0046] In this embodiment, after the communication interface 21 completes the low-voltage communication connection, it can communicate with the BMS. The BMS can monitor the status and control the functions of each single battery of the battery module 60.

[0047] In this embodiment, the high-voltage interface 22 can output the electric energy of the battery module to the outside after connecting the wire.

[0048] It can be understood that the cooling interface 23 can be connected to a liquid cooling device or an air cooling device to cool the battery module through water cooling or air cooling.

[0049] As Figure 2 and 4As shown, in one embodiment, the cabinet structure further includes a coolant unit 30. The coolant unit 30 is connected to the cooling interface 23 and is used to cool the battery module 60 through the coolant. Specifically, the battery module 60 can be cooled by the coolant introduced through the coolant unit 30.

[0050] As Figures 1-2 shown in FIGS. 3 and 4, in one embodiment, the cooling interface 23 includes a plurality of coolant inlets 231 and a plurality of coolant outlets 232. Each coolant inlet 231 and each coolant outlet 232 are respectively communicated with each sub-chamber 111. The coolant unit 30 includes a coolant inlet pipe 31 and a coolant outlet pipe 32. The coolant inlet pipe 31 is connected to each coolant inlet 231, and the coolant outlet pipe 32 is connected to each coolant outlet 232. Specifically, through the setting of the coolant unit 30 in the cabinet structure, during the cooling process of the battery module 60, the coolant passes through the coolant inlet pipe 31 and enters the coolant inlet 231, and then enters each single cell of the battery module 60 from the coolant inlet 231 to cool each single cell. After the coolant flows out of each single cell of the battery module 60, it enters the coolant outlet pipe 32 from the coolant outlet 232, and then exits from the coolant outlet 232.

[0051] As Figure 2 and 4 shown in FIGS. 3 and 4, in one embodiment, the coolant inlet pipe 31 includes a main inlet pipe 311 and a plurality of inlet branch pipes 312. Each inlet branch pipe 312 is respectively connected to each coolant inlet 231, and the main inlet pipe 311 is connected to each inlet branch pipe 312. Specifically, during the process of the coolant passing through the coolant inlet pipe 31, the coolant enters from the main inlet pipe 311 and is then evenly distributed to each inlet branch pipe 312. Each inlet branch pipe 312 enters each single cell of the battery module 60 from each coolant inlet 231 respectively, so as to realize the cooling of each single cell of the battery module 60.

[0052] As Figures 1-2 shown in FIGS. 3 and 4, in one embodiment, the coolant outlet pipe 32 includes a main outlet pipe 321 and a plurality of outlet branch pipes 322. Each outlet branch pipe 322 is respectively connected to each coolant outlet 232, and the main outlet pipe 321 is connected to each outlet branch pipe 322. Specifically, during the process of the coolant flowing out of the battery module 60, the coolant enters each outlet branch pipe 322 from each coolant outlet 232 of each single cell of the battery module 60, and then enters the main outlet pipe 321 from the outlet branch pipe 322, and finally exits from the main outlet pipe 321.

[0053] As Figures 1-2As shown in FIGS. 3 and 4, in one embodiment, a plurality of high-voltage interfaces 22 are provided, and each high-voltage interface 22 is respectively communicated with each sub-cavity 111. The cabinet structure further includes a plurality of conductive bars 40, and each conductive bar 40 is respectively connected to two adjacent high-voltage interfaces 22. Specifically, through the arrangement of the conductive bars 40, the voltages of the individual cells of the battery module 60 can be output through the conductive bars 40, realizing the electrical energy output of the battery system.

[0054] In this embodiment, the conductive bar 40 is embedded in the connection plate 20 through an in-mold injection process.

[0055] As Figures 1-2 shown in FIGS. 3 and 4, in one embodiment, a plurality of communication interfaces 21 are provided, and each communication interface 21 is respectively communicated with each sub-cavity 111. The cabinet structure further includes a plurality of low-voltage communication lines 50, and each low-voltage communication line 50 is respectively connected to two adjacent communication interfaces. Specifically, the low-voltage communication line 50 can communicate with the BMS, and then the BMS can monitor the states and control the functions of multiple individual cells.

[0056] In this embodiment, the low-voltage communication line 50 is installed on the connection plate 20 by fixing means such as bolts and cable ties.

[0057] As Figures 3-4 shown, an embodiment of the present invention further provides a battery system, including a battery module 60 and the above-mentioned cabinet structure. The battery module 60 is inserted into the installation cavity 11 through the insertion port 12, and is slidably connected to the communication interface 21, the high-voltage interface 22, and the cooling interface 23 by facing the connection plate 20. Specifically, by providing this cabinet structure, the battery system only needs to insert the battery module 60 in the direction of the connection plate 20 to realize the connection of the battery module 60 with each communication interface 21, high-voltage interface 22, and cooling interface 23, thus eliminating the need for separate installation of each interface and providing convenience for the assembly of the battery system.

[0058] As Figures 3-4 shown, in some embodiments, the battery module 60 includes a plurality of battery boxes 61, and single cells are provided in the battery boxes 61. Each battery box 61 is slidably connected to each sub-cavity 111 respectively. Specifically, each battery box 61 combines to form the battery module 60, and each battery box 61 is inserted into each sub-cavity 111 through the insertion port 12, and the installation of the battery module 60 in the installation cavity 11 can be realized.

[0059] As Figure 3 shown, in this embodiment, each battery box 61 is provided with a handle 611 for holding, which provides convenience for the disassembly and assembly of each battery box 61.

[0060] As Figure 4As shown in the figure, in this embodiment, on the side of each battery box 61 close to the connection plate 20, there are a liquid inlet 612, a liquid outlet 613, a voltage output connector 614 and a communication connector 615. Each liquid inlet 612 and each liquid outlet 613 are respectively connected to each coolant inlet 231 and each coolant outlet, each voltage output connector 614 is connected to each high-voltage interface 22, and each communication interface 21 is connected to each communication connector 615.

[0061] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A cabinet structure, characterized in that: include: The battery cabinet body is provided with an installation cavity, a connection port and an insertion port, the connection port and the insertion port are arranged opposite to each other and are both connected to the installation cavity, and the insertion port is provided for the battery module to be inserted into the installation cavity; and A connecting plate is installed at the connecting port, and the connecting plate is provided with a communication interface, a high-voltage interface and a cooling interface. The communication interface, the high-voltage interface and the cooling interface can simultaneously provide for the battery module sliding toward the connecting plate to be plugged in.

2. The cabinet structure according to claim 1, characterized in that: The installation cavity is provided with a plurality of spaced-apart sub-cavities, and each of the sub-cavities is used for installing a single battery of each battery module.

3. The cabinet structure according to claim 2, characterized in that: The cabinet structure also includes a cooling liquid unit, which is connected to the cooling interface and is used to cool the battery module by cooling liquid.

4. The cabinet structure according to claim 3, characterized in that: The cooling interface includes a plurality of coolant inlets and a plurality of coolant outlets, each of the coolant inlets and each of the coolant outlets are respectively connected to each of the sub-cavities, and the coolant unit includes a coolant inlet pipe and a coolant outlet pipe, the coolant inlet pipe is connected to each of the coolant inlets, and the coolant outlet pipe is connected to each of the coolant outlets.

5. The cabinet structure according to claim 4, characterized in that: The coolant inlet pipe comprises a main inlet pipe and a plurality of inlet branch pipes, each of the inlet branch pipes is connected to each of the coolant inlets respectively, and the main inlet pipe is connected to each of the inlet branch pipes.

6. The cabinet structure according to claim 4, characterized in that: The coolant outlet pipe comprises a main outlet pipe and a plurality of outlet branches, each of the outlet branches is connected to each of the coolant outlet ports, and the main outlet pipe is connected to each of the outlet branches.

7. The cabinet structure according to claim 2, characterized in that: There are a plurality of high-voltage interfaces, each of which is connected to each of the sub-cavities respectively. The cabinet structure also includes a plurality of conductive bars, each of which is connected to two adjacent high-voltage interfaces respectively.

8. The cabinet structure according to claim 2, characterized in that: There are a plurality of communication interfaces, each of which is connected to each of the sub-cavities respectively. The cabinet structure also includes a plurality of low-voltage communication lines, each of which is connected to two adjacent communication interfaces respectively.

9. A battery system, characterized in that: It comprises a battery module and the cabinet structure according to any one of claims 1 to 8, wherein the battery module is inserted into the installation cavity via the insertion port, and is connected to the communication interface, the high-voltage interface and the cooling interface by sliding toward the connecting plate.

10. The battery system according to claim 9, characterized in that: The battery module includes a plurality of battery boxes, each of which is provided with a single battery, and each of the battery boxes is slidably connected to each of the sub-cavities.

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