Battery system

Abstract

The utility model relates to a battery system which comprises an electric pile module and a liquid supply module, the electric pile module comprises a first box body and an electric pile unit, and a first partition plate is arranged in the first box body; mounting cavities are respectively formed between the first partition plates and / or between the first box body and the first partition plates; a connecting part is arranged on the side wall of the mounting cavity; each mounting cavity is used for arranging an electric pile unit, the liquid supply module comprises a second box body, a working liquid box is arranged in the second box body, and the first box body is connected with the top of the second box body. According to the galvanic pile module disclosed by the invention, the plurality of mounting cavities for mounting the galvanic pile units are formed in the first box body, so that a worker can adjust the number of the galvanic pile units arranged in the galvanic pile module so as to adjust the power and the capacity of the galvanic pile module; in addition, the galvanic pile units and the mounting cavities are arranged in a one-to-one correspondence manner, so that the galvanic pile units are convenient to disassemble and assemble, and the maintenance efficiency of the galvanic pile module is improved.

Description

Technical Field

[0001] The present disclosure relates to battery energy storage technology, and in particular, to a battery system. Background Art

[0002] With the development of society and the increasing energy demand of various devices and systems, the development of high-energy-density batteries is needed to meet power supply requirements. Currently, the power and capacity of the stack modules in battery systems cannot be adjusted in a timely manner according to demand, and the stacks in the modules are difficult to disassemble and assemble. This leads to high costs for replacing the stack modules and also affects the efficiency of stack maintenance. Utility Model Content

[0003] The purpose of the present disclosure is to provide a battery system to facilitate adjustment of the number of battery stack units in a battery stack module, thereby at least partially solving the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present disclosure provides a battery system, including: a battery stack module, including a first box body and a battery stack unit, the first box body has a plurality of first partitions arranged at intervals along the first direction; an installation chamber is formed between two adjacent first partitions, and / or between the two inner walls of the first box body in the first direction and the first partitions adjacent to the two inner walls respectively; a connecting portion is provided on the side wall of the installation chamber; each of the installation chambers is used to set up a battery stack unit, so that the battery stack unit can be connected to the connecting portion; and a liquid supply module, including a second box body, a working liquid tank for accommodating electrolyte is provided inside the second box body, the first box body is connected to the top of the second box body, and the working liquid tank can be connected to the connecting portion through a liquid supply pipe group, so that the electrolyte can circulate between the working liquid tank and the battery stack unit.

[0005] Optionally, the battery stack unit includes at least one battery stack, and each battery stack is provided with a matching portion that can be connected to the connecting portion.

[0006] Optionally, the mating part includes a first mating part and a second mating part located on one side of the fuel cell stack, the first mating part and the second mating part are arranged at intervals, and each is connected to the liquid supply pipe group through the connecting part; wherein, one of the first mating part and the second mating part is used to be connected to the liquid inlet pipe group of the liquid supply pipe group, and the other is used to be connected to the liquid outlet pipe group of the liquid supply pipe group.

[0007] Optionally, a plurality of mounting positions arranged side by side and used to install the battery stack are provided in the mounting chamber, the connecting portion is arranged in one-to-one correspondence with the mounting position, a guide portion is formed on at least one side of the mounting position in the second direction, and a guide matching portion that can be adapted to the guide portion is provided on the battery stack, and the battery stack can slide along the extension direction of the guide portion toward the side close to the connecting portion through the guide matching portion.

[0008] Optionally, the first box body includes an opening arranged opposite to the connecting portion, and the guide portion is constructed as a guide block extending from the opening along the second direction; the guide matching portion is constructed as a guide surface that can fit with at least one side wall of the guide block.

[0009] Optionally, a first inclined surface is formed on a side of the guide block close to the fuel cell stack, and the guide surface is recessed toward the middle of the fuel cell stack so as to be in contact with the first inclined surface and at least a portion of the top surface of the fuel cell stack.

[0010] Optionally, the guide blocks are provided on both sides of the mounting position in the second direction; the guide surfaces are formed on both sides of the battery stack in the second direction, so that the two guide surfaces on the battery stack are provided in one-to-one correspondence with the two guide blocks.

[0011] Optionally, a display panel is provided on the outer side wall of the first box.

[0012] Optionally, ventilation holes are provided on the outer side walls of the first box body and / or the second box body.

[0013] Optionally, the battery system also includes a heat dissipation module and an intermediate liquid tank, the heat dissipation module is arranged adjacent to the battery stack module and / or is arranged in the liquid supply module; the intermediate liquid tank is arranged on the top of the second tank body and adjacent to the first tank body, and the intermediate liquid tank can be connected to the working liquid tank in an on-off manner.

[0014] Through the above technical solution, a plurality of installation chambers for installing battery stack units are formed on the first box body of the battery stack module disclosed in the present invention, so that the staff can appropriately adjust the number of battery stack units arranged in the battery stack module according to needs, thereby adjusting the power and capacity of the battery stack module, improving the applicability of the battery stack module, and reducing the cost of replacing the battery stack module; in addition, the battery stack units and the installation chambers are arranged in a one-to-one correspondence, which can also facilitate the disassembly and assembly of the battery stack units and improve the maintenance efficiency of the battery stack module, and the working fluid tank is located in the second box body, and the battery stack module is connected to the top of the second box body, which can also improve the utilization of space and reduce the space occupied by the battery stack module and the working fluid tank.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is an exploded schematic diagram of a fuel cell module provided by an embodiment of the present disclosure;

[0018] Figure 2 is a front view of a fuel cell module provided by an embodiment of the present disclosure;

[0019] Figure 3 is a rear view of a fuel cell module provided by an embodiment of the present disclosure;

[0020] Figure 4 is a schematic structural diagram of a fuel cell module provided in an embodiment of the present disclosure;

[0021] Figure 5 is a rear view of a fuel cell module provided by an embodiment of the present disclosure;

[0022] Figure 6 1 is a schematic structural diagram of a guide portion of a stack module provided in an embodiment of the present disclosure;

[0023] Figure 7 is a structural diagram of a battery system provided by an embodiment of the present disclosure;

[0024] Figure 8 It is a side view of the first box body and the second box body provided by the embodiment of the present disclosure.

[0025] Description of Reference Numerals

[0026] 100-fuel cell stack module; 1-first housing; 101-opening; 200-liquid supply module; 201-second housing; 202-working liquid tank; 2-connecting part; 3-first partition; 4-installation chamber; 41-installation position; 42-guide part; 421-guide block; 4211-first inclined plane; 5-fuel cell stack unit; 51-fuel cell stack; 52-matching part; 521-first matching part; 522-second matching part; 53-guide matching part; 531-guide surface; 6-fuel cell supply pipe group; 61-liquid inlet pipe group; 62-liquid outlet pipe group; 7-display panel; 8-ventilation hole; 9-first connecting chamber; 10-second connecting chamber; 11-second partition; 12-heat dissipation module; 13-intermediate liquid tank; A-first direction; B-second direction. DETAILED DESCRIPTION

[0027] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0028] In this disclosure, unless otherwise stated, directional words such as "inside" and "outside" refer to the "inside" and "outside" relative to the outline of the corresponding component itself; "first direction" refers to the height direction of the first box body. Specifically, reference can be made to Figures 1 to 3 The "up-down direction" shown in the figure; the "second direction" refers to the direction extending from the opening of the first housing toward one side of the connecting portion. Furthermore, the terms "first," "second," "third," etc., used in this disclosure are intended to distinguish one element from another and do not have a sequential or significant meaning. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise indicated, identical reference numerals in different drawings represent identical or similar elements. The above definitions are intended solely to explain and illustrate this disclosure and should not be construed as limiting this disclosure.

[0029] The battery system in an exemplary embodiment of the present disclosure will be described below with reference to the accompanying drawings.

[0030] refer to Figures 1 to 8 As shown (where Figure 1 Only the overall structure of the battery stack and the first box is shown. For details, see Figures 2 to 8), provides a battery system, including a stack module 100 and a liquid supply module 200, wherein the stack module 100 includes a first box body 1 and a stack unit 5, the first box body 1 has a plurality of first partitions 3 arranged at intervals along a first direction A; an installation cavity 4 is formed between two adjacent first partitions 3, and / or between the two inner side walls of the first box body 1 in the first direction A and the first partitions 3 adjacent to each other on the two inner side walls; a connecting portion 2 is provided on the side wall of the installation cavity 4; each installation cavity 4 is used to set a stack unit 5, so that the stack unit 5 can be connected to the connecting portion 2 The liquid supply module 200 includes a second box body 201, and a working liquid tank 202 for accommodating an electrolyte is provided inside the second box body 201. The first box body 1 is connected to the top of the second box body 201. Specifically, the second box body 201 may be provided with a liquid connector to ensure that the working liquid tank 202 can be connected to the connecting part 2 through the liquid supply pipe group 6, so that the electrolyte can circulate between the working liquid tank 202 and the battery stack unit 5. Of course, the second box body 201 may also be provided with an electrical connector to be electrically connected to the battery stack module 100, thereby outputting the electrical energy of the battery stack module 100. After the stack unit 5 of the stack module 100 is arranged in the installation chamber 4, it is connected to the connection part 2 of the first box body 1, so that the electrolyte in the working liquid tank 202 can circulate between the stack module 100 and the working liquid tank 202 of the battery system through the liquid supply pipe group 6 under the action of the pump body, ensuring that the stack module 100 can operate normally and output electrical energy; the number of stack units 5 arranged in the stack module 100 can be appropriately adjusted according to demand, thereby adjusting the power and capacity of the stack module 100 and improving the applicability of the stack module 100. range, reducing the cost of replacing the battery stack module 100; in addition, the battery stack unit 5 and the installation chamber 4 are arranged in a one-to-one correspondence. When replacing or increasing or decreasing the number of the battery stack unit 5, it is only necessary to take out the corresponding battery stack unit 5 from the installation chamber 4. Based on this, it is convenient to disassemble and assemble the battery stack unit 5, and the maintenance efficiency of the battery stack module 100 is improved. The working fluid tank 202 is located in the second box body 201, and the battery stack module 100 is connected to the top of the second box body 201, which can also improve the utilization of space and reduce the space occupied by the battery stack module 100 and the working fluid tank 202.

[0031] In addition, if Figure 7 and Figure 8The first housing 1 may include two adjacent connecting chambers arranged in the second direction B, namely, a first connecting chamber 9 and a second connecting chamber 10. The first connecting chamber 9 and the second connecting chamber 10 are separated by a second partition 11, wherein a first partition 3 is provided in the first connecting chamber 9, i.e., the second partition 11 forms the side wall of the installation chamber 4, and the connecting portion 2 is provided on the second partition 11; at least part of the liquid supply pipe group 6 is provided in the second connecting chamber 10, and the working liquid tank 202 is connected to the connecting portion 2 on the second partition 11 through the liquid supply pipe group 6 in the second connecting chamber 10, so that the electrolyte can flow into or out of the battery stack unit 5 through the liquid supply pipe group 6. As a result, the second partition 11 can separate the liquid supply pipe group 6 from the battery stack unit 5, making it easier for staff to replace and repair the liquid supply pipe group 6 and the battery stack unit 5.

[0032] In the embodiments of the present disclosure, Figures 1 to 3 、 Figure 7 and Figure 8 As shown, the battery stack unit 5 may include at least one battery stack 51, and each battery stack 51 is provided with a mating portion 52 that can be connected to the connecting portion 2. For example, 7 installation chambers 4 can be provided on the first box body 1 of the present disclosure, that is, 7 battery stack units 5 can be provided, and each battery stack unit 5 can include 4 battery stacks 51 with a rated power of approximately 3kw. Thus, the entire battery stack module 100 can have 7 battery stack units 5, a total of 28 battery stacks 51. After these 7 battery stack units 5 are connected in series, the rated voltage of the battery stack module 100 can be 57.6V, the current is 1505.3A, the rated capacity is 3627KWH, and the rated power is 80KW, ensuring that the battery system can operate continuously at full power for about 46 hours. Of course, the number of battery stacks 51 can also be appropriately increased or decreased according to demand to adapt to different application scenarios.

[0033] In some embodiments, as Figure 5 As shown, the mating portion 52 may include a first mating portion 521 and a second mating portion 522 located on one side of the battery stack 51. The first mating portion 521 and the second mating portion 522 are spaced apart and are each connected to the liquid supply pipe group 6 through the connecting portion 2. One of the first mating portion 521 and the second mating portion 522 is used to connect to the liquid inlet pipe group 61 of the liquid supply pipe group 6, and the other is used to connect to the liquid outlet pipe group 62 of the liquid supply pipe group 6. When the battery stack module 100 is in operation, the electrolyte in the working liquid tank 202 will flow through the liquid inlet pipe group 61 and the junction of the first mating portion 521 and the connecting portion 2 in sequence under the action of the pump body to enter the battery stack 51. Subsequently, the electrolyte in the battery stack 51 will flow through the junction of the second mating portion 522 and the connecting portion 2 and the liquid outlet pipe group 62 in sequence to flow back to the working liquid tank 202. At this point, a single electrolyte cycle is formed to ensure the normal operation of the battery system.

[0034] In some embodiments of the present disclosure, Figure 2 As shown, a plurality of mounting positions 41 arranged side by side and used to mount the battery stack 51 can be provided in the mounting chamber 4, the connecting portion 2 and the mounting position 41 are arranged in a one-to-one correspondence, a guide portion 42 is formed on at least one side of the mounting position 41 in the second direction B, and a guide fitting portion 53 that can be adapted to the guide portion 42 is provided on the battery stack 51. The battery stack 51 can slide along the extension direction of the guide portion 42 toward the side close to the connecting portion 2 through the guide fitting portion 53. In the process of installing the battery stack 51, it is only necessary to match the guide fitting portion 53 on the battery stack 51 with a part of the guide portion 42 in the mounting position 41, so that the battery stack 51 can be smoothly sent into the mounting chamber 4 by directly pushing the battery stack 51, and the fitting portion 52 on the battery stack 51 is connected to the connecting portion 2. When the battery stack 51 needs to be removed, the battery stack 51 is directly pulled to the outside of the mounting chamber 4, and the battery stack 51 can slide smoothly out of the mounting chamber 4 along the guide portion 42, thereby improving the efficiency of disassembling and assembling the battery stack 51.

[0035] Specifically, if Figure 2 As shown, the first box body 1 includes an opening 101 arranged opposite to the connecting portion 2, and the guide portion 42 is constructed as a guide block 421 extending from the opening 101 along the second direction B; the guide matching portion 53 is constructed as a guide surface 531 that can be fitted with at least one side wall of the guide block 421. The box door of the first box body 1 can be set at the opening 101 by a hinge. When disassembling the battery stack 51, the box door is opened to expose the opening 101, and the battery stack 51 can be installed into the installation position 41 or removed from the installation position 41 through the opening 101. After the disassembly is completed, the box door is closed to ensure the sealing of the first box body 1 and form protection for the battery stack 51. In the process of installing or removing the battery stack 51 from the installation position 41, the guide surface 531 of the battery stack 51 can be fitted with the side wall of the guide block 421 to ensure that the battery stack 51 moves stably along the guide block 421, thereby facilitating the disassembly and assembly of the battery stack 51.

[0036] In addition, a handle can be provided on the side wall of the battery stack 51 to facilitate the staff to pick up the battery stack 51. In order to avoid interference between the side wall of the first box body 1 and the handle, which affects the installation of the battery stack 51 into the installation chamber 4, an avoidance groove that is adapted to the shape of the handle can be provided on the side wall of the first box body 1.

[0037] In the embodiments of the present disclosure, Figure 2 、 Figures 4 to 6As shown, a first inclined surface 4211 is formed on the side of the guide block 421 near the cell stack 51. The guide surface 531 is recessed toward the center of the cell stack 51 to abut against the first inclined surface 4211 and at least a portion of the top surface of the cell stack 51. The inclined surface allows the guide block 421 and the cell stack 51 to be abutted against each other. Compared to other structures, the inclined surface is simpler to set and form, simplifying the molding process of the guide block 421 and the guide surface 531 of the cell stack 51.

[0038] Among them, such as Figure 2 As shown, guide blocks 421 are provided on both sides of the mounting position 41 in the second direction B. Guide surfaces 531 are formed on both sides of the battery stack 51 in the second direction B, so that the two guide surfaces 531 on the battery stack 51 correspond to the two guide blocks 421. In other words, when the battery stack 51 is installed in or removed from the mounting position 41, the guide blocks 421 on both sides ensure the stability of the battery stack 51 during sliding.

[0039] In some embodiments of the present disclosure, Figure 1 As shown, a display panel 7 is provided on the outer wall of the first box body 1. The display panel 7 can be provided on the box door of the first box body 1. The box door forms the side wall of the first box body 1 to display information such as the current and voltage of the battery system, the electrolyte temperature and protection temperature, power, and the electrolyte usage time, so as to facilitate the staff to monitor the battery stack module 100 and the battery system.

[0040] In addition, if Figure 1 As shown, ventilation holes 8 may be further provided on the outer side walls of the first box body 1 and / or the second box body 201 to dissipate the heat in the installation chamber 4 and ensure the normal operation of the stack module 100.

[0041] In an embodiment of the present disclosure, the battery system may further include a heat dissipation module 12 and an intermediate liquid tank 13. The heat dissipation module 12 is disposed adjacent to the stack module 100 and / or within the liquid supply module 200. The intermediate liquid tank 13 is disposed on top of the second housing 201 and adjacent to the first housing 1. The intermediate liquid tank 13 is connectable to the working liquid tank 202. Under the action of the pump, the electrolyte within the working liquid tank 202 of the liquid supply module 200 flows into the stack module 100 through the liquid inlet pipe assembly 61 and flows back into the working liquid tank 202 from the liquid outlet pipe assembly 62. During this process, the heat dissipation module 12 continuously cools the electrolyte to ensure the normal operation of the battery system. The intermediate liquid tank 13 also contains electrolyte, which can be used to replace the waste liquid in the working liquid tank 202, thereby improving the liquid replacement efficiency of the battery system.

[0042] The heat dissipation module 12 may be configured as a plate heat exchanger.

[0043] In addition, the battery system of the present disclosure may be an air battery system, such as an aluminum-air battery system, a zinc-air battery system, or a lithium-air battery system, etc., and the present disclosure is not limited to this.

[0044] In summary, the present disclosure exemplarily illustrates the working process of the battery system.

[0045] When the battery system is working, the staff can set different numbers of battery stack units 5 and battery stacks 51 in the installation chamber 4 as needed. After determining the specific number, the staff can place the battery stack 51 into the installation chamber 4. During this process, the guide surfaces 531 on both sides of the battery stack 51 in the second direction B will fit into the first inclined surface 4211 of the guide block 421 in the installation position 41. Then the battery stack 51 can be pushed smoothly into the installation position 41, so that the matching part 52 of the battery stack 51 and the connecting part 2 on the first box body 1 are docked and configured, thereby ensuring that the electrolyte in the working liquid tank 202 flows through the liquid inlet pipeline, the battery stack 51 and the liquid outlet pipeline and then flows back to the working liquid tank 202, ensuring the normal operation of the battery system. A plurality of installation chambers 4 for installing the fuel cell units 5 are formed on the first box body 1 of the fuel cell module 100 of the present disclosure, so that the staff can appropriately adjust the number of fuel cell units 5 arranged in the fuel cell module 100 according to the needs, thereby adjusting the power and capacity of the fuel cell module 100, improving the scope of application of the fuel cell module 100, and reducing the cost of replacing the fuel cell module 100; in addition, the fuel cell units 5 and the installation chambers 4 are arranged in a one-to-one correspondence, which can also facilitate the disassembly and assembly of the fuel cell units 5 and improve the maintenance efficiency of the fuel cell module 100, and the working fluid tank 202 is located in the second box body 201, and the fuel cell module 100 is connected to the top of the second box body 201, which can also improve the utilization of space and reduce the space occupied by the fuel cell module 100 and the working fluid tank 202.

[0046] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0048] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery system, characterized in that: include: The stack module comprises a first box and a stack unit, wherein the first box has a plurality of first partitions spaced apart along a first direction; An installation cavity is formed between two adjacent first partitions, and / or between two inner side walls of the first box in the first direction and the first partitions adjacent to the two inner side walls; a connecting portion is provided on the side wall of the installation cavity; each installation cavity is used to accommodate one of the battery stack units, so that the battery stack unit can be connected to the connecting portion; and The liquid supply module includes a second box body, a working liquid tank for containing electrolyte is provided inside the second box body, the first box body is connected to the top of the second box body, and the working liquid tank can be connected to the connecting part through a liquid supply pipe group so that the electrolyte can circulate between the working liquid tank and the battery stack unit.

2. The battery system according to claim 1, wherein: The battery stack unit includes at least one battery stack, and each battery stack is provided with a matching portion that can be connected to the connecting portion.

3. The battery system according to claim 2, characterized in that The mating portion includes a first mating portion and a second mating portion located on one side of the fuel cell stack, the first mating portion and the second mating portion are spaced apart and are each connected to the liquid supply tube assembly through the connecting portion; Wherein, one of the first matching portion and the second matching portion is used to be connected to the liquid inlet pipe group of the liquid supply pipe group, and the other is used to be connected to the liquid outlet pipe group of the liquid supply pipe group.

4. The battery system according to claim 2, characterized in that The installation chamber is provided with a plurality of installation positions arranged side by side and used to install the battery stack. The connecting portion is arranged in a one-to-one correspondence with the installation position. The installation position is formed with a guide portion on at least one side of the second direction. The battery stack is provided with a guide matching portion that can be adapted to the guide portion. The battery stack can slide along the extension direction of the guide portion toward the side close to the connecting portion through the guide matching portion.

5. The battery system according to claim 4, characterized in that The first box body includes an opening arranged opposite to the connecting portion, and the guide portion is configured as a guide block extending from the opening along the second direction; The guide matching portion is configured as a guide surface that can fit with at least one side wall of the guide block.

6. The battery system according to claim 5, characterized in that A first inclined surface is formed on a side of the guide block close to the fuel cell stack, and the guide surface is recessed toward the middle of the fuel cell stack so as to be in contact with the first inclined surface and at least a portion of the top surface of the fuel cell stack.

7. The battery system according to claim 5, characterized in that The guide blocks are provided on both sides of the installation position in the second direction; the guide surfaces are formed on both sides of the battery stack in the second direction, so that the two guide surfaces on the battery stack are provided in a one-to-one correspondence with the two guide blocks.

8. The battery system according to claim 1, wherein: A display panel is provided on the outer side wall of the first box.

9. The battery system according to claim 1, wherein: Ventilation holes are provided on the outer side walls of the first box body and / or the second box body.

10. The battery system according to any one of claims 1 to 9, characterized in that: The battery system also includes a heat dissipation module and an intermediate liquid tank. The heat dissipation module is arranged adjacent to the battery stack module and / or arranged in the liquid supply module; the intermediate liquid tank is arranged on the top of the second tank body and adjacent to the first tank body, and the intermediate liquid tank can be connected to the working liquid tank in an on-off manner.

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