Liquid supply module and battery system

Abstract

The utility model relates to a liquid supply module and a battery system, the liquid supply module comprises a first box body, a working liquid box and an intermediate liquid box, the working liquid box is used for being connected with a galvanic pile module and providing electrolyte for the galvanic pile module or receiving electrolyte from the galvanic pile module; the intermediate liquid tank is connected to the working liquid tank in an on-off manner; one of the working liquid box and the intermediate liquid box is arranged in the first box body, the other one is arranged at the top of the first box body, and at least part of projection of the intermediate liquid box in the first direction covers at least part of the working liquid box. According to the liquid supply module disclosed by the invention, one of the working liquid tank and the intermediate liquid tank is arranged in the first tank body, the other one is arranged at the top of the first tank body, and at least part of projection of the intermediate liquid tank in the first direction covers at least part of the working liquid tank, so that the distance between the first tank body and the intermediate liquid tank is reduced, and extra occupied space is not increased; and the working liquid box and / or the intermediate liquid box are / is convenient to disassemble, assemble and replace, and waste liquid in the working liquid box is timely replaced.

Description

Technical Field

[0001] The present disclosure relates to the field of air batteries, and in particular, to a liquid supply module and a battery system. Background Art

[0002] Air batteries are electrochemical batteries whose positive electrode uses oxygen in the air as a reactant and whose negative electrode is usually a metal or other material that can release electrons. Air batteries have many advantages such as safety, environmental protection, and high energy density, and have good development and application prospects.

[0003] The air battery system includes a liquid supply module, which includes a working liquid tank for providing electrolyte to the battery stack module or receiving electrolyte from the battery stack module. In the related art, when the electrolyte in the working liquid tank needs to be replaced, it is necessary to transmit the electrolyte over a long distance, or transport new electrolyte to the working liquid tank for replacement. As a result, the electrolyte in the working liquid tank of the liquid supply module cannot be replaced in time, thereby affecting the use of the battery system. Utility Model Content

[0004] The purpose of the present disclosure is to provide a liquid supply module and a battery system, which at least partially solve the above technical problems by respectively arranging an intermediate liquid tank and a working liquid tank inside and outside of a first box body.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the present disclosure provides a liquid supply module, including a first box body; a working liquid tank, which is used to be connected to the battery stack module and to provide electrolyte to the battery stack module or to receive electrolyte from the battery stack module; and an intermediate liquid tank, which is used to store spare electrolyte and is connected to the working liquid tank in an on-off manner through a connecting pipeline; one of the working liquid tank and the intermediate liquid tank is arranged in the first box body, and the other is arranged on the top of the first box body and at least a part of the projection of the intermediate liquid tank in the first direction covers at least a part of the working liquid tank.

[0006] Optionally, the top of the first box body includes a first installation area and a second installation area, the bottom of the intermediate liquid tank is connected to the first installation area, the second installation area is used to connect to the battery stack module, and the working liquid tank is arranged in the first box body.

[0007] Optionally, the first installation area includes a connecting port and a support rod, the connecting port is connected to the interior of the first tank body and is used for connecting the pipeline between the working liquid tank and the intermediate liquid tank, and a plurality of the support rods are spaced apart at the connecting port to support the intermediate liquid tank.

[0008] Optionally, the liquid supply module also includes a heat dissipation unit for cooling the electrolyte in the working liquid tank and / or circulating through the working liquid tank and the fuel cell module; the heat dissipation unit includes a heat exchanger and a heat dissipation pipeline; the heat exchanger is respectively connected to the pipe group of the working liquid tank and the heat dissipation pipeline, so that the refrigerant in the heat dissipation pipeline and the electrolyte in the pipe group exchange heat in the heat exchanger.

[0009] Optionally, the heat exchanger and the heat dissipation pipeline are arranged on the top of the first box body and adjacent to the intermediate liquid tank; or, the heat exchanger and the heat dissipation pipeline are arranged inside the first box body and adjacent to the working liquid tank; or, the heat exchanger is arranged on the top and / or inside the first box body, part of the heat dissipation pipeline is located on the top of the first box body, and the remaining part of the heat dissipation pipeline is located inside the first box body.

[0010] Optionally, the heat dissipation unit also includes a cooler connected to the heat dissipation pipeline and used to cool the refrigerant in the heat dissipation pipeline. One of the heat exchanger and the cooler is arranged at the top of the first box body and adjacent to the intermediate liquid tank, and the other is arranged inside the first box body and adjacent to the working liquid tank.

[0011] Optionally, the heat exchanger is configured as a plate heat exchanger, the cooler includes a shell, heat dissipation fins connected to the shell and a fan connected to the heat dissipation fins, the heat dissipation pipeline passes through the shell and the heat dissipation fins, and the refrigerant in the heat dissipation pipeline circulates in the plate heat exchanger and the heat dissipation pipeline through a pump body.

[0012] Optionally, the liquid supply module further comprises a second box body arranged on the top of the first box body to be sleeved on the outer side of the intermediate liquid tank, and the second box body and the first box body together form an L-shaped box body.

[0013] Optionally, heat dissipation holes are provided on the first box body and / or the second box body.

[0014] According to a second aspect of the present disclosure, a battery system is provided, including a battery stack module and the above-mentioned liquid supply module, wherein the battery stack module is arranged on the top of the first box body and is connected to the working liquid tank through a pipe group.

[0015] Through the above technical solution, the liquid supply module disclosed in the present invention arranges one of the working liquid tank and the intermediate liquid tank in the first box body, and the other is arranged on the top of the first box body and at least part of the projection of the intermediate liquid tank in the first direction covers at least part of the working liquid tank, thereby reducing the distance between the working liquid tank and the intermediate liquid tank without increasing additional floor space, and facilitating the disassembly and replacement of the working liquid tank and / or the intermediate liquid tank; in addition, the spare electrolyte in the intermediate liquid tank can also be used to promptly replace the waste liquid in the working liquid tank to ensure the normal use of the battery system.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 is a schematic diagram of a liquid supply module provided in an embodiment of the present disclosure;

[0019] Figure 2 is a schematic diagram of a battery system provided by an embodiment of the present disclosure;

[0020] Figure 3 is a side view of a battery system provided by an embodiment of the present disclosure;

[0021] Figure 4 It is a top view of the first box provided in an embodiment of the present disclosure.

[0022] Description of Reference Numerals

[0023] 1-first box body; 11-first installation area; 111-connecting port; 112-support rod; 12-second installation area; 2-working liquid tank; 3-intermediate liquid tank; 4-connecting pipeline; 5-heat dissipation unit; 51-heat exchanger; 511-plate heat exchanger; 52-cooler; 53-heat dissipation pipeline; 6-pump body; 7-second box body; 8-heat dissipation hole; 9-fuel cell stack module; 10-tube group; 1001-liquid inlet pipe group; 1002-liquid outlet pipe group; A-first direction. DETAILED DESCRIPTION

[0024] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0025] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" refer to the "inside" and "outside" relative to the contour of the corresponding component itself; the "first direction" refers to the height direction of the liquid supply module and the battery system when they are working normally. Figures 1 to 3 In addition, the terms "first", "second", etc. used in the present disclosure are intended to distinguish one element from another and do not have order or importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.

[0026] The liquid supply module in the exemplary embodiment of the present disclosure will be described below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 4 As shown, in the first aspect of the present disclosure, a liquid supply module is provided, comprising a first box body 1, a working liquid tank 2 and an intermediate liquid tank 3, wherein the working liquid tank 2 is used to connect with the battery stack module 9 and to provide electrolyte to the battery stack module 9 or to receive electrolyte from the battery stack module 9; the intermediate liquid tank 3 is used to store spare electrolyte and is connected to the working liquid tank 2 through a connecting pipe 4 in a switchable manner; one of the working liquid tank 2 and the intermediate liquid tank 3 is arranged in the first box body 1, and the other is arranged on the top of the first box body 1, and at least part of the projection of the intermediate liquid tank 3 in the first direction A covers at least part of the working liquid tank 2. The working liquid tank 2 and the intermediate liquid tank 3 are arranged inside and outside the first box body 1, respectively, and the projections of the two in the first direction A overlap to a certain extent, so that the distance between the working liquid tank 2 and the intermediate liquid tank 3 can be reduced, and no additional space will be added, and the working liquid tank 2 and / or the intermediate liquid tank 3 can be easily disassembled and replaced; in addition, the spare electrolyte in the intermediate liquid tank 3 can also be used to replace the waste liquid in the working liquid tank 2 in a timely manner to ensure the normal use of the battery system.

[0028] In some embodiments of the present disclosure, Figure 1 and Figure 4As shown, the top of the first box body 1 includes a first installation area 11 and a second installation area 12 , the bottom of the intermediate liquid tank 3 is connected to the first installation area 11 , the second installation area 12 is used to connect to the stack module 9 , and the working liquid tank 2 is arranged in the first box body 1 . That is, the top of the first box body 1 can be used to set the intermediate liquid tank 3 and the battery stack module 9, wherein the second installation area 12 can be provided with a liquid connector and an electrical connector, the liquid connector can be used to connect the battery stack module 9 and the working liquid tank 2, so that the electrolyte in the working liquid tank 2 can circulate between the working liquid tank 2 and the battery stack module 9, and the electrical connector can be electrically connected to the battery stack module 9 to output the electrical energy of the battery stack module 9; this arrangement method can, on the one hand, support the intermediate liquid tank 3 and the battery stack module 9 by the first box body 1 to avoid the intermediate liquid tank 3 and the battery stack module 9 being directly stacked on the working liquid tank 2 and damaging the working liquid tank 2, and on the other hand, it can also avoid other external forces acting on the working liquid tank 2; and in order to facilitate the connection between the battery stack module 9 and the working liquid tank 2, the working liquid tank 2 can be arranged in the first box body 1 along the extension direction of the first box body 1, so that the battery stacks at different positions on the battery stack module 9 can be connected to the working liquid tank 2 through the tube group 10.

[0029] Specifically, Figure 4 As shown, the first installation area 11 may include a connection port 111 and a support rod 112. The connection port 111 is in communication with the interior of the first housing 1 and is used for connecting the pipelines between the working liquid tank 2 and the intermediate liquid tank 3. A plurality of support rods 112 are arranged at intervals at the connection port 111 to support the intermediate liquid tank 3. The pipelines passing through the connection port 111 between the working liquid tank 2 and the intermediate liquid tank 3 may include the connecting pipeline 4 and the heat dissipation pipeline 53 of the heat dissipation unit 5. Since the above pipelines may have multiple groups, a plurality of support rods 112 are arranged at intervals at the connection port 111 to ensure that the connection port 111 has sufficient gaps for multiple groups of pipelines to pass through; wherein, two support rods 112 may be configured, and the two support rods 112 may be arranged at intervals and in parallel at the connection port 111 to support the two ends of the bottom of the intermediate liquid tank 3 to ensure the stability of the intermediate liquid tank 3 after being placed on the support rods 112.

[0030] Alternatively, in some embodiments not shown in the figure, a plurality of support rods 112 may also be cross-arranged on the connection port 111 , as long as the connection port 111 is capable of allowing a plurality of pipelines to pass through.

[0031] In some embodiments, Figure 2 and Figure 3As shown, the liquid supply module may also include a heat dissipation unit 5 for cooling the electrolyte in the working liquid tank 2 and / or circulating through the working liquid tank 2 and the battery stack module 9; the heat dissipation unit 5 may include a heat exchanger 51 and a heat dissipation pipeline 53; the heat exchanger 51 is respectively connected to the pipe group 10 of the working liquid tank 2 and the heat dissipation pipeline 53, so that the refrigerant in the heat dissipation pipeline 53 and the electrolyte in the pipe group 10 exchange heat in the heat exchanger 51. The tube group 10 connected to the working liquid tank 2 may include an inlet tube group 1001 and an outlet tube group 1002, so that the electrolyte in the working liquid tank 2 can circulate between the working liquid tank 2, the inlet tube group 1001, the battery stack module 9 and the outlet tube group 1002. Part of the pipelines of the inlet tube group 1001 and / or the outlet tube group 1002 will be connected to the heat exchanger 51. Thus, the tube group 10 located in the heat exchanger 51 can achieve heat exchange with the refrigerant in the heat dissipation pipeline 53, so as to cool the electrolyte during the circulation of the electrolyte, thereby ensuring the normal operation of the entire battery system.

[0032] Specifically, Figure 2 and Figure 3 As shown, the heat exchanger 51 and the heat dissipation pipeline 53 can be arranged in a variety of ways. For example, the heat exchanger 51 and the heat dissipation pipeline 53 can be arranged on the top of the first box body 1 and adjacent to the intermediate liquid tank 3; or, the heat exchanger 51 and the heat dissipation pipeline 53 are arranged inside the first box body 1 and adjacent to the working liquid tank 2; in this way, the heat dissipation unit 5, the working liquid tank 2 and the intermediate liquid tank 3 can be arranged more compactly with each other, which not only ensures that the temperature of the electrolyte in the working liquid tank 2 can be maintained within the normal working temperature range, but also can reduce the overall volume of the liquid supply module as much as possible. Alternatively, since there may be multiple battery stacks in the battery stack module 9, multiple sets of liquid inlet and outlet pipelines for transporting electrolyte are required. In order to ensure the heat dissipation effect, the number of heat exchangers 51 and heat dissipation pipelines 53 and the space occupied will also increase accordingly. Based on this, the heat exchanger 51 can be arranged on the top and / or inside of the first box body 1, part of the heat dissipation pipeline 53 can be located at the top of the first box body 1, and the remaining part of the heat dissipation pipeline 53 is located inside the first box body 1. In this way, the space inside and outside the first box body 1 can be maximized and the volume of the liquid supply module can be reduced. In addition, this can also increase the length of the heat dissipation pipeline 53 and improve the cooling effect of the refrigerant in the heat dissipation pipeline 53.

[0033] In some embodiments of the present disclosure, Figure 2 and Figure 3As shown, the heat dissipation unit 5 may further include a cooler 52 connected to the heat dissipation pipeline 53 and used to cool the refrigerant in the heat dissipation pipeline 53. One of the heat exchanger 51 and the cooler 52 is arranged at the top of the first box body 1 and adjacent to the intermediate liquid tank 3, and the other is arranged inside the first box body 1 and adjacent to the working liquid tank 2. The cooler 52 can work together with the heat exchanger 51 to improve the heat dissipation effect of the heat dissipation unit 5. Specifically, the heat exchanger 51 can be configured as a plate heat exchanger 511. The cooler 52 may include a housing, heat dissipation fins connected to the housing, and a fan connected to the heat dissipation fins. The heat dissipation pipeline 53 passes through the housing and the heat dissipation fins. The refrigerant in the heat dissipation pipeline 53 circulates in the plate heat exchanger 511 and the heat dissipation pipeline 53 through the pump body 6. When the heat dissipation unit 5 is working, the pump body 6 will drive the refrigerant in the heat dissipation pipeline 53 to circulate in the plate heat exchanger 511 and the heat dissipation pipeline 53. When the refrigerant flows through the plate heat exchanger 511, it will exchange heat with the electrolyte in the liquid inlet pipe group 1001 or the liquid outlet pipe group 1002 to reduce the temperature of the electrolyte. At the same time, after the refrigerant after heat exchange passes through the cooler 52, the heat dissipation fins of the cooler 52 can be used to dissipate the heat of the refrigerant, and the fan is used to further cool the refrigerant and the heat dissipation fins to ensure that the heat dissipation unit 5 can continuously and efficiently dissipate the heat of the electrolyte and enable the battery system to operate normally.

[0034] Among them, multiple plate heat exchangers 511 and coolers 52 can be arranged. For example, multiple plate heat exchangers 511 can be arranged at intervals inside the first box body 1 and adjacent to the working liquid tank 2, and multiple coolers 52 can be arranged at intervals outside the first box body 1 along the first direction A, thereby improving the heat dissipation effect of the heat dissipation unit 5.

[0035] In some embodiments, Figure 2 and Figure 3 As shown, the liquid supply module also includes a second box body 7 arranged on the top of the first box body 1 to be sleeved on the outside of the intermediate liquid tank 3. The second box body 7 can provide certain protection for the intermediate liquid tank 3 and at least part of the heat dissipation unit 5 arranged adjacent to the intermediate liquid tank 3 to prevent the two from being damaged due to external forces. In addition, the second box body 7 can be located at one end of the top of the first box body 1 and extend along the first direction A to form an L-shaped box body together with the first box body 1. In this way, the space on the top of the first box body 1 occupied by the second box body 7 can be reduced, so that the battery stack module 9, the heat dissipation unit 5 and the second box body 7 can all be arranged on the top of the first box body 1, thereby saving the space occupied by the battery system.

[0036] In the embodiments of the present disclosure, Figure 2As shown, the first box body 1 and / or the second box body 7 are provided with heat dissipation holes 8, which can dissipate the heat inside the first box body 1 and / or the second box body 7, thereby ensuring that the inside of the first box body 1 and / or the second box body 7 is at a suitable working temperature.

[0037] The second aspect of the present disclosure provides a battery system, including a battery stack module 9 and the above-mentioned liquid supply module, wherein the battery stack module 9 is arranged on the top of the first box body 1 and connected to the working liquid tank 2 through a pipe group 10. In addition, the battery system has all the beneficial effects of the above-mentioned liquid supply module, which will not be repeated in this disclosure.

[0038] 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.

[0039] In summary, the present disclosure exemplarily illustrates the working process of the liquid supply module and the battery system.

[0040] The working liquid tank 2 is arranged inside the first box body 1, and the intermediate liquid tank 3 is arranged in the first installation area 11 located at the top of the first box body 1, which can reduce the distance between the working liquid tank 2 and the intermediate liquid tank 3 without increasing additional floor space, and facilitates the disassembly and replacement of the working liquid tank 2 and / or the intermediate liquid tank 3; the first installation area 11 can be used to install the battery stack module 9, and the heat dissipation unit 5 for cooling the electrolyte in the liquid supply module can be arranged adjacent to the intermediate liquid tank 3 and / or arranged in the first box body 1 adjacent to the working liquid tank 2, thereby integrating the battery stack module 9, the working liquid tank 2, the intermediate liquid tank 3 and the heat dissipation unit 5 on the first box body 1, reducing the space occupied by the battery system.

[0041] 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 in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0043] In addition, 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 liquid supply module, characterized in that: include: The first box; A working fluid tank, used to be connected to the battery stack module and to provide electrolyte to the battery stack module or receive electrolyte from the battery stack module; as well as An intermediate liquid tank, used for storing spare electrolyte and connected to the working liquid tank in an on-off manner through a connecting pipeline; One of the working liquid tank and the intermediate liquid tank is disposed in the first box body, and the other is disposed on the top of the first box body, and at least a portion of the projection of the intermediate liquid tank in the first direction covers at least a portion of the working liquid tank.

2. The liquid supply module according to claim 1, characterized in that: The top of the first box body includes a first installation area and a second installation area, the bottom of the intermediate liquid tank is connected to the first installation area, the second installation area is used to connect to the stack module, and the working liquid tank is arranged in the first box body.

3. The liquid supply module according to claim 2, characterized in that: The first installation area includes a connection port and a support rod. The connection port is communicated with the interior of the first tank body and is used for connecting the pipeline between the working liquid tank and the intermediate liquid tank. A plurality of support rods are spaced apart at the connection port to support the intermediate liquid tank.

4. The liquid supply module according to claim 2, characterized in that: The liquid supply module also includes a heat dissipation unit for cooling the electrolyte in the working liquid tank and / or circulating through the working liquid tank and the stack module; the heat dissipation unit includes a heat exchanger and a heat dissipation pipeline; the heat exchanger is respectively connected to the pipe group of the working liquid tank and the heat dissipation pipeline, so that the refrigerant in the heat dissipation pipeline and the electrolyte in the pipe group exchange heat in the heat exchanger.

5. The liquid supply module according to claim 4, characterized in that: The heat exchanger and the heat dissipation pipeline are arranged on the top of the first box body and adjacent to the intermediate liquid tank; or, The heat exchanger and the heat dissipation pipeline are arranged inside the first box body and adjacent to the working fluid tank; or, The heat exchanger is arranged on the top and / or inside of the first box, part of the heat dissipation pipeline is located on the top of the first box, and the remaining part of the heat dissipation pipeline is located inside the first box.

6. The liquid supply module according to claim 5, characterized in that: The heat dissipation unit also includes a cooler connected to the heat dissipation pipeline and used to cool the refrigerant in the heat dissipation pipeline. One of the heat exchanger and the cooler is arranged on the top of the first box body and adjacent to the intermediate liquid tank, and the other is arranged inside the first box body and adjacent to the working liquid tank.

7. The liquid supply module according to claim 6, characterized in that: The heat exchanger is configured as a plate heat exchanger, the cooler includes a shell, heat dissipation fins connected to the shell and a fan connected to the heat dissipation fins, the heat dissipation pipeline passes through the shell and the heat dissipation fins, and the refrigerant in the heat dissipation pipeline circulates in the plate heat exchanger and the heat dissipation pipeline through a pump body.

8. The liquid supply module according to any one of claims 1 to 7, characterized in that: The liquid supply module further comprises a second box body arranged on the top of the first box body so as to be sleeved on the outer side of the intermediate liquid tank, and the second box body and the first box body together form an L-shaped box body.

9. The liquid supply module according to claim 8, characterized in that: The first box body and / or the second box body are provided with heat dissipation holes.

10. A battery system, characterized in that: It comprises a battery stack module and a liquid supply module as described in any one of claims 1 to 9, wherein the battery stack module is arranged on the top of the first box body and is connected to the working liquid tank through a pipe group.

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