Cooling test device for single cells

Abstract

The utility model relates to battery test technical field especially, it relates to cooling test device of single battery. Cooling test device of single battery includes fixed base, charge -discharge component, circulating drive part, two groups of cooling structures and clamping assembly, and fixed base is used for fixing single battery, and the butt joint end of charge -discharge component is respectively butt jointed with the positive pole and negative pole of single battery, and two groups of cooling structures are respectively optionally connected with circulating drive part, and circulating drive part is configured as drive cooling liquid circulation flow between cooling structure and circulating drive part, and each group of cooling structure all has the serpentine liquid cooling plate, and two serpentine liquid cooling plates in two groups of cooling structures are respectively arranged at the opposite two sides of single battery, and clamping assembly is configured as single battery and serpentine liquid cooling plate abutment fixed, satisfies the single -sided cooling test demand and both -sided cooling test demand to single battery, and the test effect to single battery is good.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, and in particular to a cooling testing device for a single battery cell. Background Technology

[0002] The optimal operating temperature for a battery is 10℃-45℃, and batteries generate heat during charging and discharging. In practical applications, to meet actual power demands, multiple individual batteries need to be connected in series and / or parallel to form a battery pack. Furthermore, to ensure the normal operation of the battery pack, a serpentine liquid cooling plate is required within the pack to cool the individual batteries. Currently, the cooling solutions for individual batteries using the serpentine liquid cooling plate within the battery pack include single-sided and double-sided cooling schemes. The single-sided cooling scheme uses a serpentine liquid cooling plate on one side of the individual battery to cool it. The double-sided cooling scheme uses serpentine liquid cooling plates on opposite sides of the individual battery to cool it.

[0003] In the early stages of single-cell research and development, to ensure product quality, it is necessary to simulate the actual usage scenarios of the single cell within the battery pack and conduct cooling tests. Existing solutions directly perform cooling tests after assembling multiple single cells into a battery pack, which is not effective for testing individual cells.

[0004] Therefore, there is an urgent need to invent a cooling test device for individual cells to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a cooling test device for a single cell, so as to realize single-sided cooling test and double-sided cooling test of a single cell, and meet the actual testing requirements.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A cooling test device for individual cells, used to perform single-sided cooling tests and double-sided cooling tests on individual cells. The cooling test device for individual cells includes:

[0008] A mounting bracket is used to secure the individual battery cell.

[0009] A charging and discharging assembly, wherein the terminals of the charging and discharging assembly are respectively connected to the positive and negative terminals of the individual battery cell;

[0010] A circulation drive unit and two sets of cooling structures, each set of which is selectively connected to the circulation drive unit. The circulation drive unit is configured to drive coolant to circulate between the cooling structures and the circulation drive unit. Each set of cooling structures has a serpentine liquid cooling plate, with two serpentine liquid cooling plates in each set of cooling structures respectively disposed on opposite sides of the individual battery cell; and

[0011] A clamping assembly configured to abut and secure the individual battery cell to the serpentine liquid cooling plate.

[0012] As an optional feature, each set of cooling structures further includes:

[0013] The circulation pipeline includes an inlet pipe and an outlet pipe. The circulation drive has a first inlet end and a first outlet end. The serpentine liquid cooling plate has a second inlet end and a second outlet end. The inlet pipe is configured to connect the first outlet end and the second inlet end, and the outlet pipe is configured to connect the first inlet end and the second outlet end.

[0014] As an optional solution, the cooling test device for the single cell also includes a first shunt, which has one input terminal and two output terminals. The input terminal of the first shunt is connected to the first liquid inlet terminal, and the two output terminals are selectively connected to the liquid inlet pipe.

[0015] And / or, the cooling test device for the single cell further includes a second shunt, the second shunt having two input terminals and one output terminal, the two input terminals of the second shunt being selectively connected to the liquid outlet pipe, and the output terminal of the second shunt being connected to the second liquid outlet.

[0016] As an optional solution, the liquid inlet pipe includes:

[0017] The main body of the first pipeline; and

[0018] The quick-release structure is provided between the first pipe body and the first liquid outlet end of the circulation drive component, and / or between the first pipe body and the second liquid inlet end of the serpentine liquid cooling plate.

[0019] As an optional solution, the quick-release structure includes a quick-release male connector and a quick-release female connector, wherein the quick-release male connector is mated and fixed with the quick-release female connector;

[0020] Either the quick-release male connector or the quick-release female connector is installed at the second liquid inlet end, and the other one is installed at one port of the first pipeline body;

[0021] And / or, either the quick-release male connector or the quick-release female connector is installed at the first liquid outlet end, and the other one is installed at the other port of the first pipeline body.

[0022] As an optional solution, the main body of the first pipe is a flexible hose;

[0023] And / or, the outer peripheral wall of the first pipe body is covered with a metal braided layer.

[0024] As an optional solution, the first distributor is equipped with a temperature detection element, which is used to detect the temperature of the coolant in the first distributor.

[0025] And / or, the second distributor is provided with a temperature detection element, which is used to detect the temperature of the coolant in the second distributor.

[0026] As an optional solution, the clamping assembly includes:

[0027] A fixing component is fixedly connected to the fixing base, and the fixing component is located on the side of the single cell away from the serpentine liquid cooling plate;

[0028] A clamping element is disposed on the side of the serpentine liquid cooling plate away from the individual battery cell; and

[0029] A connector is fixedly connected to the fixing member and the clamping member respectively. The position of the clamping member relative to the connector is adjustable along a first direction, which is the same as the direction opposite to the serpentine liquid cooling plate and the single battery cell.

[0030] As an optional solution, the charging and discharging assembly includes:

[0031] Charging and discharging main body;

[0032] A first docking component, a second docking component, and a connecting harness are provided. The first docking component and the second docking component are respectively mounted on the fixed base. The connecting harness connects the first docking component to the charging and discharging body and the second docking component to the charging and discharging body, respectively.

[0033] The first docking member and the second docking member each have the docking end. Either the first docking member or the second docking member is docked with the positive electrode of the single cell, and the other docking member is docked with the negative electrode of the single cell.

[0034] As an optional solution, the mounting base has a mounting groove for accommodating the individual battery cell.

[0035] The beneficial effects of this utility model are:

[0036] The single-cell cooling test device provided by this utility model uses a fixing base to fix the single cell and connects the docking terminals of the charging and discharging assembly to the positive and negative terminals of the single cell, respectively. This simulates the charging and discharging cycle of the single cell under actual working conditions. By setting up two sets of cooling structures, each set can be selectively connected to a cycle drive component. Each cooling structure has a serpentine liquid cooling plate, and the two serpentine liquid cooling plates within each cooling structure are respectively positioned on opposite sides of the single cell. The clamping assembly then abuts and fixes the serpentine liquid cooling plates to the single cell. When the cycle drive component drives the coolant to circulate between the cooling structure and the cycle drive component, the coolant within the serpentine liquid cooling plates can effectively cool the single cell. The system effectively cools the battery, enabling cooling tests on individual cells. Since the two cooling structures can be selectively connected to the cycle drive, when a dual-sided cooling test is required, the two cooling structures are connected to the cycle drive, allowing the two serpentine liquid cooling plates on opposite sides of the cell to cool it. When a single-sided cooling test is required, one cooling structure is connected to the cycle drive, while the other is disconnected, ensuring only one of the serpentine liquid cooling plates cools the cell. This satisfies both dual-sided and single-sided cooling test requirements, resulting in excellent testing performance for individual cells. Attached Figure Description

[0037] Figure 1 This is one of the structural schematic diagrams of the cooling test device for a single cell provided in this embodiment of the utility model for performing a unilateral cooling test on a single cell;

[0038] Figure 2 This is the second schematic diagram of the cooling test device for a single cell provided in this embodiment of the utility model, which performs a single-sided cooling test on a single cell.

[0039] Figure 3 This is one of the structural schematic diagrams of the cooling test device for a single cell provided in this embodiment of the utility model, which performs a double-sided cooling test on a single cell.

[0040] Figure 4 This is the second schematic diagram of the cooling test device for a single cell provided in this embodiment of the present invention, which performs a double-sided cooling test on a single cell.

[0041] Figure 5 This is a schematic diagram of the structure of the fixing base, charging and discharging assembly, single battery, a clamping assembly and a serpentine liquid cooling plate provided in the embodiment of this utility model;

[0042] Figure 6 This is a schematic diagram of the structure of a single battery cell, a serpentine liquid cooling plate, and an assembly clamping component provided in this embodiment of the utility model;

[0043] Figure 7 This is a structural schematic diagram of a single battery cell, two serpentine liquid cooling plates, two clamping members, and two connecting members provided in this embodiment of the utility model;

[0044] Figure 8 yes Figure 5 A cross-sectional schematic diagram;

[0045] Figure 9 This is a schematic diagram of the first distributor, the second distributor, a set of cooling structures, and the mounting bracket provided in this embodiment of the utility model.

[0046] In the picture:

[0047] 100. Fixing base; 110. Fixing slot;

[0048] 200. Clamping assembly; 210. Clamping element; 220. Connecting element; 230. Fixing element;

[0049] 300. Charging / discharging assembly; 310. First docking component; 320. Second docking component;

[0050] 400. Circulation pipe; 410. Inlet pipe; 411. Main body of the first pipe; 412. Quick-release structure; 4121. Quick-release male connector; 4122. Quick-release female connector; 420. Outlet pipe;

[0051] 500, serpentine liquid cooling plate;

[0052] 600. First shunt;

[0053] 700. Temperature sensing components;

[0054] 800. Mounting bracket; 810. First support plate; 820. Second support plate; 830. Vertical plate; 831. Slide groove;

[0055] 900. Second shunt;

[0056] 2000, single cell battery. Detailed Implementation

[0057] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0058] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] To meet actual power demands, multiple individual cells need to be connected in series and / or parallel to form a battery pack. Furthermore, to ensure the normal operation of the battery pack, a serpentine liquid cooling plate is required to cool the individual cells. Currently, the cooling solutions for individual cells using the serpentine liquid cooling plate within the battery pack include single-sided and double-sided cooling schemes. The single-sided cooling scheme uses a serpentine liquid cooling plate on one side of the individual cell to cool it. The double-sided cooling scheme uses serpentine liquid cooling plates on opposite sides of the individual cell to cool it. In the early stages of individual cell development, to ensure product quality, it is necessary to simulate the actual usage scenarios of the individual cells within the battery pack and conduct cooling tests. Existing solutions directly perform cooling tests after assembling multiple individual cells into a battery pack, which is not effective for individual cell testing.

[0061] To solve the above problems, such as Figures 1-4As shown, this embodiment provides a cooling test device for a single battery cell to perform single-sided and double-sided cooling tests on a single battery cell 2000. Specifically, the cooling test device for a single battery cell includes a fixing base 100, a charge / discharge assembly 300, a circulation drive, two sets of cooling structures, and a clamping assembly 200. The fixing base 100 is used to fix the single battery cell 2000. The docking ends of the charge / discharge assembly 300 are respectively docked with the positive and negative terminals of the single battery cell 2000. The two sets of cooling structures are selectively connected to the circulation drive, which is configured to drive the coolant to circulate between the cooling structures and the circulation drive. Each cooling structure has a serpentine liquid cooling plate 500. The two serpentine liquid cooling plates 500 in the two sets of cooling structures are respectively disposed on opposite sides of the single battery cell 2000. The clamping assembly 200 is configured to abut and fix the single battery cell 2000 to the serpentine liquid cooling plate 500.

[0062] The cooling test device for this single-cell battery uses a mounting base 100 to fix the single-cell battery 2000, and connects the docking terminals of the charging and discharging assembly 300 to the positive and negative terminals of the single-cell battery 2000 respectively. This simulates the charging and discharging cycle of the single-cell battery 2000 under actual working conditions. By setting two sets of cooling structures, each set of cooling structures can be selectively connected to the cycle drive component. Each cooling structure has a serpentine liquid cooling plate 500, and the two serpentine liquid cooling plates 500 in the two sets of cooling structures are respectively set on opposite sides of the single-cell battery 2000. The clamping assembly 200 abuts and fixes the serpentine liquid cooling plates 500 to the single-cell battery 2000. When the cycle drive component drives the coolant to circulate between the cooling structure and the cycle drive component, the coolant in the serpentine liquid cooling plates 500 can achieve cooling of the single-cell battery 2000. The cooling system enables cooling tests on individual cells 2000. Since the two cooling structures can be selectively connected to the cycle drive, when a double-sided cooling test of the individual cell 2000 is required, the two cooling structures are connected to the cycle drive, allowing the two serpentine liquid cooling plates 500 on opposite sides of the individual cell 2000 to cool it. When a single-sided cooling test is required, one of the two cooling structures is connected to the cycle drive, while the other is disconnected, ensuring that only one of the two serpentine liquid cooling plates 500 cools the individual cell 2000. This satisfies both single-sided and double-sided cooling test requirements for the individual cell 2000, resulting in good testing performance.

[0063] Optionally, the charging / discharging assembly 300 includes a charging / discharging body, a first docking member 310, a second docking member 320, and a connecting harness. The first docking member 310 and the second docking member 320 are respectively mounted on the fixing base 100. The connecting harness connects the first docking member 310 to the charging / discharging body and the second docking member 320 to the charging / discharging body, respectively. The first docking member 310 and the second docking member 320 each have a docking end. Either the first docking member 310 or the second docking member 320 is docked with the positive terminal of the single cell 2000, and the other docking member 320 is docked with the negative terminal of the single cell 2000. It should be noted that in this embodiment, the first docking member 310 is docked with the positive terminal of the single cell 2000, and the second docking member 320 is docked with the negative terminal of the single cell 2000. In other embodiments, the first docking member 310 may be docked with the negative terminal of the single cell 2000, and the second docking member 320 may be docked with the positive terminal of the single cell 2000. This embodiment does not impose a specific limitation. Furthermore, the specific structure and working principle of the charging and discharging body are existing technologies and will not be elaborated here.

[0064] In one of the alternative solutions, such as Figure 5 and Figure 6 As shown, the clamping assembly 200 includes a fixing member 230, a clamping member 210, and a connecting member 220. The fixing member 230 is fixedly connected to the fixing base 100 and is located on the side of the single cell 2000 away from the serpentine liquid cooling plate 500. The clamping member 210 is located on the side of the serpentine liquid cooling plate 500 away from the single cell 2000. The connecting member 220 is fixedly connected to the fixing member 230 and the clamping member 210 respectively. The position of the clamping member 210 relative to the connecting member 220 is adjustable along a first direction, which is the same as the direction opposite to the serpentine liquid cooling plate 500 and the single cell 2000. By setting the fixing member 230 on the side of the single cell 2000 away from the serpentine liquid cooling plate 500, setting the clamping member 210 on the side of the serpentine liquid cooling plate 500 away from the single cell 2000, and using the connecting member 220 to fix the fixing member 230 and the clamping member 210 respectively, and ensuring that the position of the clamping member 210 relative to the connecting member 220 is adjustable along the first direction, and ensuring that the first direction is in the same direction as the direction opposite to the serpentine liquid cooling plate 500 and the single cell 2000, the clamping member 210 can achieve the effect of clamping and fixing the serpentine liquid cooling plate 500 and the single cell 2000 along the first direction.

[0065] It should be noted that in this embodiment, the clamping member 210 is a long rod, and the connecting member 220 is a bolt. The two axial ends of the long rod extend out of both sides of the serpentine liquid cooling plate 500 along the first direction. The clamping assembly 200 has two fixing members 230 and two connecting members 220. The two axial ends of the long rod are respectively provided with one fixing member 230 and one connecting member 220. The threaded part of the bolt extends along the first direction. The bolt is threadedly fixed to the long rod and the fixing member 230 respectively, so as to improve the clamping effect of the serpentine liquid cooling plate 500 and the single battery 2000.

[0066] Understandably, a single clamping assembly 200 can clamp and secure a serpentine liquid cooling plate 500 to a single cell 2000. When a dual-sided cooling test of the single cell 2000 is required, two clamping assemblies 200 are needed to clamp and secure two serpentine liquid cooling plates 500 to the single cell 2000 respectively. However, this method of securing the cell with two clamping assemblies 200 is not only complex to operate, but also requires a large amount of space.

[0067] Therefore, such as Figure 7 As shown, when it is necessary to fix the serpentine liquid cooling plates 500 on opposite sides of the single cell 2000, clamping members 210 are set on the two sides of the serpentine liquid cooling plates 500 away from the single cell 2000, and the two clamping members 210 are fixedly connected by the connector 220. By utilizing the movement of the clamping members 210 relative to the connector 220, the two clamping members 210 jointly clamp and fix the two serpentine liquid cooling plates 500 to the single cell 2000, eliminating the need for the fixing member 230 in the clamping assembly 200, which greatly saves installation space, reduces the difficulty of operation, and improves the convenience of clamping.

[0068] like Figure 8 As shown, the mounting base 100 has a mounting groove 110 for accommodating the individual battery cell 2000. By accommodating the individual battery cell 2000 in the mounting groove 110, the individual battery cell 2000 is positioned and fixed, preventing the individual battery cell 2000 from moving during the fixing process with the serpentine liquid cooling plate 500.

[0069] Taking the single-sided liquid cooling test of a 2000-cell battery as an example, such as Figure 9As shown, each cooling structure also includes a circulation pipe 400, which includes an inlet pipe 410 and an outlet pipe 420. The circulation drive has a first inlet end and a first outlet end, and the serpentine liquid cooling plate 500 has a second inlet end and a second outlet end. The inlet pipe 410 is configured to connect the first outlet end and the second inlet end, and the outlet pipe 420 is configured to connect the first inlet end and the second outlet end. By connecting the first outlet end of the circulation drive and the second inlet end of the serpentine liquid cooling plate 500 through the inlet pipe 410, and connecting the second outlet end of the serpentine liquid cooling plate 500 and the first inlet end of the circulation drive through the outlet pipe 420, the coolant can circulate between the inlet pipe 410, the serpentine liquid cooling plate 500, the outlet pipe 420, and the circulation drive under the drive of the circulation drive, thus meeting the cooling test requirements of the single cell 2000. It should be noted that in this embodiment, the circulation drive component is a circulating chiller, which receives the high-temperature coolant and discharges it after cooling it down. The specific structure and working principle of the circulating chiller are existing technologies and will not be described in detail here.

[0070] Optionally, the cooling test device for a single battery cell further includes a first shunt 600 and a second shunt 900. The first shunt 600 has one input terminal and two output terminals. The input terminal of the first shunt 600 is connected to the first liquid inlet terminal, and the two output terminals are selectively connected to the liquid inlet pipe 410. The second shunt 900 has two input terminals and one output terminal. The two input terminals of the second shunt 900 are selectively connected to the liquid outlet pipe 420, and the output terminal of the second shunt 900 is connected to the second liquid outlet terminal. By setting the first shunt 600 so that the first liquid inlet terminal can be selectively connected to the liquid inlet pipe 410 in both cooling structures, and by setting the second shunt 900 so that the first liquid outlet terminal can be selectively connected to the liquid outlet pipe 420 in both cooling structures, both the assembly difficulty of the two cooling structures and the circulation drive component can be increased, as can the assembly efficiency of the two cooling structures and the circulation drive component can be improved. It should be noted that in other embodiments, only the first distributor 600 may be provided to connect the first liquid outlet and the liquid inlet pipes 410 in both sets of cooling structures, and only the second distributor 900 may be provided to connect the first liquid inlet and the liquid outlet pipes 420 in both sets of cooling structures. This embodiment does not impose specific limitations. It should also be noted that both the first distributor 600 and the second distributor 900 have plugs. When the circulation drive only needs to connect to one set of cooling structures, the plugs respectively block one output end of the first distributor 600 and one input end of the second distributor 900.

[0071] In an optional embodiment, the liquid inlet pipe 410 includes a first pipe body 411 and a quick-release structure 412. The quick-release structure 412 is provided between the first pipe body 411 and the first distributor 600, and between the first pipe body 411 and the second liquid inlet end of the serpentine liquid cooling plate 500. By disassembling the liquid inlet pipe 410 into the first pipe body 411 and the quick-release structure 412, and providing the quick-release structure 412 between the first pipe body 411 and the first distributor 600, rapid assembly and disassembly between the liquid inlet pipe 410 and the first distributor 600 can be achieved. By providing the quick-release structure 412 between the first pipe body 411 and the second liquid inlet end of the serpentine liquid cooling plate 500, rapid assembly and disassembly between the liquid inlet pipe 410 and the serpentine liquid cooling plate 500 can be achieved, further improving the assembly and disassembly efficiency. It should be noted that in other embodiments, the quick-release structure 412 may be provided only between the first pipe body 411 and the first distributor 600, or only between the first pipe body 411 and the serpentine liquid cooling plate 500. This embodiment does not make specific limitations.

[0072] Specifically, the quick-release structure 412 includes a quick-release male connector 4121 and a quick-release female connector 4122. The quick-release male connector 4121 and quick-release female connector 4122 are fixed together. When the quick-release structure 412 is located between the first pipe body 411 and the serpentine liquid cooling plate 500, either the quick-release male connector 4121 or the quick-release female connector 4122 is installed at the second liquid inlet end, and the other is installed at one port of the first pipe body 411. When the quick-release structure 412 is located between the first pipe body 411 and the first distributor 600, either the quick-release male connector 4121 or the quick-release female connector 4122 is installed at the output end of the first distributor 600, and the other is installed at the other port of the first pipe body 411. The specific structure and connection principle of the quick-release male connector 4121 and the second quick-release female connector 4122 are existing technologies and will not be described in detail here.

[0073] As an optional solution, the first pipe body 411 is a flexible hose. By making the first pipe body 411 a flexible hose, it can be bent according to actual installation requirements, thereby reducing the installation space and further meeting different installation needs. It should be noted that in this embodiment, the first pipe body 411 is made of rubber. Rubber material has good flexibility and a long service life. In other embodiments, the first pipe body 411 can also be made of other flexible materials with hydrophobic properties; this embodiment does not impose specific limitations.

[0074] In addition, the outer peripheral wall of the first pipe body 411 is covered with a metal braided layer. By wrapping the outer peripheral wall of the first pipe body 411 with a metal braided layer, the structural strength of the first pipe body 411 can be further enhanced, and the protection of the first pipe body 411 can be improved.

[0075] Understandably, the specific structure of the liquid outlet pipe 420 and the liquid inlet pipe 410 is the same, and for the sake of simplicity, it will not be described in detail here.

[0076] In an optional embodiment, the first shunt 600 and the second shunt 900 are equipped with temperature detection elements 700. The temperature detection element 700 installed at the first shunt 600 is used to detect the temperature of the coolant within the first shunt 600, and the temperature detection element 700 installed at the second shunt 900 is used to detect the temperature of the coolant within the second shunt 900. By installing temperature detection elements 700 at both the first shunt 600 and the second shunt 900, respectively, and by having each element detect the corresponding coolant temperature within the first shunt 600 and the second shunt 900, it is easier for operators to observe the coolant status, thereby ensuring the accuracy of the cooling test on the individual battery cells 2000. It should be noted that in this embodiment, the temperature detection element 700 is a temperature sensing wire and a temperature sensor. One end of the temperature sensing wire is connected to the temperature sensor, and the other end extends into either the first shunt 600 or the second shunt 900. The specific structure and working principle of the temperature sensing wire and temperature sensor are existing technologies and will not be elaborated here.

[0077] Optionally, in this embodiment, the cooling test device for a single battery cell further includes a mounting frame 800. The mounting frame 800 includes a vertical plate 830, a first support plate 810, and a second support plate 820. The vertical plate 830 has a groove 831 extending in the vertical direction. The first support plate 810 and the second support plate 820 are spaced apart in the vertical direction and slide in uniformly with the groove 831. The first support plate 810 is used to support the first shunt 600, and the second support plate 820 is used to support the second shunt 900. This improves the protection of the first shunt 600 and the second shunt 900, while allowing the position of the first shunt 600 and the second shunt 900 in the vertical direction to be adjusted according to actual needs, meeting different installation requirements and improving applicability.

[0078] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cooling test apparatus for a single-cell battery, used for performing single-sided cooling tests and double-sided cooling tests on a single-cell battery (2000), characterized in that, The cooling test device for a single battery cell includes: A mounting bracket (100) is used to fix the individual battery cell (2000). A charging and discharging assembly (300) has its terminals connected to the positive and negative terminals of the individual battery cell (2000), respectively. A circulation drive and two sets of cooling structures, each set of which is selectively connected to the circulation drive. The circulation drive is configured to drive coolant to circulate between the cooling structures and the circulation drive. Each set of cooling structures has a serpentine liquid cooling plate (500), with two serpentine liquid cooling plates (500) in each set of cooling structures respectively disposed on opposite sides of the single cell (2000). A clamping assembly (200) is configured to abut and fix the single cell (2000) to the serpentine liquid cooling plate (500).

2. The cooling test apparatus for a single battery cell according to claim 1, characterized in that, Each group of cooling structures also includes: A circulation pipe (400) includes an inlet pipe (410) and an outlet pipe (420). The circulation drive has a first inlet end and a first outlet end. The serpentine liquid cooling plate (500) has a second inlet end and a second outlet end. The inlet pipe (410) is configured to connect the first outlet end and the second inlet end, and the outlet pipe (420) is configured to connect the first inlet end and the second outlet end.

3. The cooling test apparatus for a single battery cell according to claim 2, characterized in that, The cooling test device for the single cell also includes a first shunt (600), which has one input terminal and two output terminals. The input terminal of the first shunt (600) is connected to the first liquid inlet terminal, and the two output terminals are selectively connected to the liquid inlet pipe (410). And / or, the cooling test device for the single cell further includes a second shunt (900), the second shunt (900) having two input terminals and one output terminal, the two input terminals of the second shunt (900) being selectively connected to the liquid outlet pipe (420), and the output terminal of the second shunt (900) being connected to the second liquid outlet terminal.

4. The cooling test apparatus for a single battery cell according to claim 2, characterized in that, The liquid inlet pipe (410) includes: First pipeline body (411); and A quick-release structure (412) is provided between the first pipe body (411) and the first liquid outlet end of the circulation drive component, and / or the quick-release structure (412) is provided between the first pipe body (411) and the second liquid inlet end of the serpentine liquid cooling plate (500).

5. The cooling test apparatus for a single battery cell according to claim 4, characterized in that, The quick-release structure (412) includes a quick-release male connector (4121) and a quick-release female connector (4122), wherein the quick-release male connector (4121) and the quick-release female connector (4122) are connected and fixed together; Either the quick-release male connector (4121) or the quick-release female connector (4122) is installed at the second liquid inlet end, and the other one is installed at one port of the first pipe body (411); And / or, either the quick-release male connector (4121) or the quick-release female connector (4122) is installed at the first liquid outlet end, and the other one is installed at the other port of the first pipe body (411).

6. The cooling test apparatus for a single battery cell according to claim 4, characterized in that, The first pipe body (411) is a flexible hose; And / or, the outer peripheral wall of the first pipe body (411) is covered with a metal braided layer.

7. The cooling test apparatus for a single battery cell according to claim 3, characterized in that, The first distributor (600) is provided with a temperature detection element (700), which is used to detect the temperature of the coolant in the first distributor (600); And / or, the second distributor (900) is provided with a temperature detection element (700) for detecting the temperature of the coolant in the second distributor (900).

8. The cooling test apparatus for a single cell according to any one of claims 1 to 7, characterized in that, The clamping assembly (200) includes: A fixing member (230) is fixedly connected to the fixing base (100), and the fixing member (230) is disposed on the side of the single cell (2000) away from the serpentine liquid cooling plate (500); A clamping member (210) is disposed on the side of the serpentine liquid cooling plate (500) away from the single cell (2000); and A connector (220) is fixedly connected to the fixing member (230) and the clamping member (210) respectively. The position of the clamping member (210) relative to the connector (220) is adjustable along a first direction, which is the same as the direction opposite to the serpentine liquid cooling plate (500) and the single battery (2000).

9. The cooling test apparatus for a single cell according to any one of claims 1 to 7, characterized in that, The charging and discharging assembly (300) includes: Charging and discharging main body; A first docking member (310), a second docking member (320), and a connecting harness are provided. The first docking member (310) and the second docking member (320) are respectively mounted on the fixed base (100). The connecting harness connects the first docking member (310) to the charging and discharging body and the second docking member (320) to the charging and discharging body. The first docking member (310) and the second docking member (320) each have the docking end. Either the first docking member (310) or the second docking member (320) is docked with the positive electrode of the single cell (2000), and the other one is docked with the negative electrode of the single cell (2000).

10. The cooling test apparatus for a single cell according to any one of claims 1 to 7, characterized in that, The mounting base (100) has a mounting groove (110) for accommodating the single battery cell (2000).

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