Temperature control device for battery cell test

Abstract

The utility model relates to the technical field of battery cell testing, and provides a temperature control device for battery cell testing, which comprises two end tubes, a plurality of temperature control tubes, a side plate and a heat conduction filler, the temperature control tubes are fixedly arranged between the two end tubes and are hermetically communicated with the two end tubes, and the axes of the plurality of temperature control tubes are positioned in the same plane; the side plate is arranged on one side of the plurality of temperature control pipes in an abutting manner, and one side, far away from the temperature control pipes, of the side plate is used for placing a battery cell; the heat conduction filler is arranged between the temperature control pipe and the side plate in a filling mode. According to the utility model, the plurality of temperature control pipes are arranged on one side, far away from the battery cell, of the side plate, and the heat conduction filling is arranged between the temperature control pipes and the side plate, so that a uniform heat supply effect can be provided for the battery cell, and the accuracy of a battery test result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric core test, especially to a temperature control device for electric core test. BACKGROUND

[0002] The test result of the electric core cannot accurately evaluate the application performance of the electric core in the battery pack because the environment temperature of the electric core during the test is not similar to that in the battery pack, therefore, it is necessary to set a temperature control device on the electric core test device to make the test temperature environment of the electric core consistent with the temperature environment in the battery pack.

[0003] The utility model discloses a kind of temperature control mechanisms for testing new energy battery, including bottom box, the bottom box upper surface is fixedly installed with the side plate of two, the bottom box and side plate are equipped with temperature control mechanism, the temperature control mechanism includes respectively fixedly installed in the opposite side surface of two side plates No. one circulation pipe and No. two circulation pipe, the bottom box inner chamber lower surface is fixedly installed with liquid supply pump, the liquid supply pump outlet end is fixedly installed with liquid outlet elbow pipe.The temperature control mechanism for testing new energy battery, by setting temperature control mechanism on bottom box and side plate, battery surface can be cooled when battery surface temperature is higher than set temperature, until battery surface temperature reaches appropriate temperature, to further can make battery surface keep constant temperature, solved the problem that battery cannot keep constant temperature when battery is heated easily during the process of detecting battery and charging and discharging experiment.

[0004] In the above technical scheme, in order to control the temperature of the battery to be tested, a circulation pipe is arranged on the side plate, the circulation pipe is in contact with the surface of the battery, and the cooling medium or heating medium in the circulation pipe is in heat transfer with the battery. However, the circulation pipe is a S-shaped tubular structure, which can only contact with part of the surface of the battery, resulting in uneven temperature control effect of the battery, which affects the accuracy of the battery test result. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a temperature control device for electric core test, which can provide uniform heating effect for the electric core and improve the accuracy of the battery test result.

[0006] The technical scheme of the utility model is implemented as follows: the utility model provides a temperature control device for electric core test, which comprises two end pipes, a plurality of temperature control pipes, a side plate and a heat-conducting filler, wherein,

[0007] The temperature control pipes are fixedly arranged between the two end pipes and are in sealed communication therewith, and the axes of the plurality of temperature control pipes are located in the same plane.

[0008] The side plate is arranged on one side of the plurality of temperature control pipes, and the side away from the temperature control pipes is used for placing the battery cell.

[0009] The heat-conducting filler is arranged between the temperature control pipes and the side plate.

[0010] On the basis of the above technical scheme, preferably, the end pipe comprises a water tank and a water receiving pipe, wherein,

[0011] The temperature control pipes are fixedly arranged on the water tank and communicate with the inside of the water tank;

[0012] One end of the water receiving pipe is fixedly arranged on the water tank and communicates with the inside of the water tank, and the water receiving pipe and the temperature control pipes are oppositely arranged on two sides of the water tank.

[0013] Further preferably, the side plate is provided with a clamping groove.

[0014] The water tank comprises a box body and a clamping hook, the clamping hook is fixedly arranged on the box body and is clamped with the clamping groove.

[0015] Further preferably, the side plate is provided with two, and the two side plates are arranged on two sides of the temperature control pipes, respectively.

[0016] Further preferably, the water tank further comprises a fixing bolt, a threaded hole is arranged on one of the side plates, a stepped hole is arranged on the other side plate, the fixing bolt is connected in the threaded hole through thread cooperation and abuts against the inner wall of the stepped hole, and the fixing bolt penetrates one of the box bodies.

[0017] Further preferably, the cross section of the clamping hook is L-shaped, and the directions of the two clamping hooks connected with the two side plates are opposite.

[0018] Further preferably, the water tank comprises a box body and a plurality of water receiving pipes, one end of the water receiving pipe is fixedly arranged on the box body and communicates with the inside of the box body, the plurality of water receiving pipes correspond to the plurality of temperature control pipes one by one, and the end of the water receiving pipe away from the box body is inserted into the corresponding temperature control pipe.

[0019] Further preferably, the end pipe further comprises a pipe valve, and the pipe valve is fixedly arranged in the water receiving pipe.

[0020] On the basis of the above technical scheme, preferably, further comprising a rack, and the end pipe is fixedly arranged on the rack.

[0021] On the basis of the above technical scheme, preferably, the plurality of temperature control pipes are arranged in parallel and at intervals.

[0022] The temperature control device for battery cell testing has the following beneficial effects compared with the prior art:

[0023] (1) By setting multiple temperature control pipes on the side of the side plate away from the battery cell, and setting heat-conducting filling between the temperature control pipes and the side plate, uniform heating effect can be provided for the battery cell, thereby improving the accuracy of the battery test results;

[0024] (2) By setting the clamping hook, the fixing bolt and the connecting pipe, the side plate, the temperature control pipe and the end pipe can be conveniently disassembled and assembled, thereby improving the use convenience of the temperature control device, and by setting the clamping hook connected with the two side plates in opposite directions, the fixing firmness of the side plate and the end pipe can be improved;

[0025] (3) By setting the pipe valve, the flow of the heating medium or the cooling medium in the device can be adjusted, so that the temperature control device is suitable for different working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 It is a sectional view of the temperature control pipe in the temperature control device for battery cell testing of the present application;

[0028] Figure 2 It is a sectional view of the clamping hook in the temperature control device for battery cell testing of the present application;

[0029] Figure 3 It is an explosion view of the box body in the temperature control device for battery cell testing of the present application;

[0030] Figure 4 It is an explosion view of the fixing bolt in the temperature control device for battery cell testing of the present application;

[0031] Figure 5 It is a perspective view of the temperature control device for battery cell testing of the present application.

[0032] Wherein: 1, end pipe; 11, water tank; 111, box body; 112, clamping hook; 113, fixing bolt; 114, connecting pipe; 12, water inlet pipe; 13, pipe valve; 2, temperature control pipe; 3, side plate; 301, clamping groove; 302, threaded hole; 303, stepped hole; 4, heat-conducting filling; 5, rack. DETAILED DESCRIPTION

[0033] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] like Figures 1-5 As shown, the present invention provides a temperature control device for testing battery cells, comprising two end tubes 1, a temperature control tube 2, a side plate 3, a thermally conductive filler 4, and a frame 5. The device utilizes the circulating flow of a medium within it to control the temperature of the tested battery cells, including both heating and cooling.

[0035] Two end pipes 1 are arranged opposite each other and spaced apart. One end pipe 1 is connected to the outlet of the medium circulation device, and the other end pipe 1 is connected to the inlet of the medium circulation device. A temperature control pipe 2 is fixedly installed between the two end pipes 1. The two ends of the temperature control pipe 2 are sealed and connected to the two end pipes 1 respectively. When the medium circulation device is started, the medium first flows along one end pipe 1 into the temperature control pipe 2, and then flows back into the circulation device through the other end pipe 1 to realize the circulation of the medium, so that the medium and the temperature control pipe 2 can exchange heat and adjust the temperature of the temperature control pipe 2 to be consistent with the temperature required for cell detection.

[0036] Temperature control tube 2 is used to heat or cool the battery cell so that the temperature of the battery cell meets the requirements. In order to improve the temperature control efficiency of temperature control tube 2 in controlling the temperature of the battery cell, multiple temperature control tubes 2 are set, and both ends of multiple temperature control tubes 2 are connected to two end tubes 1. Preferably, multiple temperature control tubes 2 are set in parallel and spaced apart to improve their uniformity of arrangement.

[0037] When the temperature control tube 2 directly contacts the battery cell, there will be a gap between them, resulting in uneven heating or cooling of the battery cell. To address this, the axes of multiple temperature control tubes 2 are aligned in the same plane, i.e., multiple temperature control tubes 2 are coplanar. The side plate 3 is abutted against one side of the multiple temperature control tubes 2. A thermally conductive filler 4 is filled between the temperature control tubes 2 and the side plate 3. The direct heat exchange between the temperature control tubes 2 and the side plate 3, and the indirect heat exchange between the temperature control tubes 2 and the side plate 3 via the thermally conductive filler 4, allow the side plate 3 to heat up or cool down quickly and evenly. Then, the side of the side plate 3 away from the temperature control tubes 2 is in direct contact with the surface of the battery cell, allowing for rapid and stable heating or cooling of the battery cell, thus improving the accuracy of the battery cell test results. The thermally conductive filler 4 can be made of a material with good thermal conductivity, such as thermally conductive silicone.

[0038] like Figure 5As shown, the end pipe 1 includes a water tank 11, a water receiving pipe 12 and a pipe valve 13, the temperature control pipe 2 is fixedly arranged on the water tank 11 and communicates with the inside of the water tank 11, one end of the water receiving pipe 12 is fixedly arranged on the water tank 11 and communicates with the inside of the water tank 11, the water receiving pipe 12 and the temperature control pipe 2 are oppositely arranged on the two sides of the water tank 11, and the two water receiving pipes 12 are respectively connected with the inlet and outlet of the medium circulating device, such as Figure 1 As shown, after the medium flows into the water tank 11 from the water receiving pipe 12, the medium can be buffered first, and then the medium is divided into each temperature control pipe 2, and finally the medium in each temperature control pipe 2 is collected into another water tank 11 and flows back to the medium circulating device along another water receiving pipe 12.

[0039] The pipe valve 13 is fixedly arranged in the water receiving pipe 12, and the opening and closing and the flow of the medium in the water receiving pipe 12 can be adjusted by controlling the pipe valve 13, so as to adjust the heat conduction effect of the temperature control device; in order to realize automatic control, the pipe valve 13 preferably adopts an electromagnetic valve, cooperates with a temperature sensor on the battery and an automatic adjusting system to realize automatic adjustment of the medium flow and opening and closing.

[0040] The rack 5 is used for bearing the temperature control device, and the end pipe 1 is preferably fixedly arranged on the rack 5, so that the temperature control pipe 2 is not in contact with the rack 5.

[0041] As shown, Figure 2 Two side plates 3 are arranged, and the two side plates 3 are arranged on the two sides of the temperature control pipe 2, one side plate 3 can be used for placing the battery, and the other side plate 3 is used for being in contact with the rack 5, the side plate 3 in contact with the rack 5 provides a good supporting effect for the temperature control device, so that the fixing of the temperature control device and the rack 5 is more stable; the two side plates 3 can also be used for placing the battery at the same time, so that not only the amount of the battery accommodated by the temperature control device can be increased, but also the temperature of the battery on both sides of the device can be kept consistent.

[0042] In order to facilitate transportation and maintenance of the temperature control device, the temperature control pipe 2 and the side plate 3 are preferably detachably fixedly connected with the end pipe 1.

[0043] The water tank 11 includes a box body 111, a clamping hook 112, a fixing bolt 113 and a plurality of connecting pipes 114, the clamping hook 112 is fixedly arranged on the box body 111, the side plate 3 is provided with a clamping groove 301, and the clamping hook 112 is clamped with the clamping groove 301; as shown, Figure 2As shown, preferably, the cross section of the clamping hook 112 is L-shaped, and the inner diameter of the clamping groove 301 is enlarged, the clamping hook 112 is first inserted into the clamping groove 301, and then the clamping hook 112 is slid to be clamped with one end of the clamping groove 301, so as to realize the quick assembly of the side plate 3 and the box body 111; preferably, the directions of the two clamping hooks 112 connected with the two side plates 3 are opposite, that is, when the two side plates 3 are installed, the sliding directions of the two side plates 3 are opposite, so that when the box body 111 slides without the two side plates 3, the problem that the box body 111 is separated from the two side plates 3 is avoided.

[0044] As shown in the drawings, Figure 4 A threaded hole 302 is formed in one side plate 3, and a stepped hole 303 is formed in the other side plate 3. The front end of the fixing bolt 113 is connected in the threaded hole 302 through threaded cooperation, and the rear end of the fixing bolt 113 abuts against the inner wall of the stepped hole 303, so as to clamp and fix the two side plates 3 on both sides of the box body 111; in order to improve the fixing firmness of the side plate 3 and the end pipe 1, preferably, the fixing bolt 113 penetrates one box body 111, and the fixing bolt 113 does not communicate with the inside of the box body 111, so that a corresponding closed cylinder needs to be arranged in the box body 111, and preferably, the fixing bolt 113 penetrates the box body 111 connected with the inlet of the medium circulating device, that is, a corresponding closed cylinder is arranged in the box body 111 connected with the inlet of the medium circulating device, so as to avoid that the closed cylinder affects the uniformity of the medium flowing into the plurality of temperature control pipes 2.

[0045] As shown in the drawings, Figure 3 One end of the connecting pipe 114 is fixedly arranged on the box body 111 and communicates with the inside thereof. The plurality of connecting pipes 114 correspond to the plurality of temperature control pipes 2 one by one. The end of the connecting pipe 114 away from the box body 111 is inserted into the temperature control pipe 2 corresponding thereto, so as to facilitate the installation and disassembly of the temperature control pipe 2 and the water tank 11.

[0046] The working principle of the temperature control device for testing the battery cell is as follows:

[0047] After the battery cell to be tested is placed on the side plate 3, the temperature control medium is injected into one of the water connecting pipes 12, and the temperature control medium flows in the path of medium circulating device→water connecting pipe 12→water tank 11→temperature control pipe 2→water tank 11→water connecting pipe 12→medium circulating device, so as to realize the adjustment of the temperature of the battery cell; during the period, the flow of the medium can be controlled by adjusting the pipe valve 13, so as to change the temperature control efficiency of the temperature control device; since the side plate 3 abuts against the plurality of temperature control pipes 2, and the gap between the two is filled by the heat-conducting filler 4 with good heat-conducting performance, the temperature of the side plate 3 in contact with the battery cell can be quickly and uniformly changed, so that the temperature of the battery cell is also quickly and uniformly changed, and the accuracy of the battery cell detection result is improved.

[0048] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A temperature control device for testing a battery cell, characterized by: It comprises two end pipes (1), multiple temperature control pipes (2), side plates (3) and heat-conducting fillings (4), wherein, The temperature control pipes (2) are fixedly arranged between the two end pipes (1) and are in sealed communication with the same, and the axes of the multiple temperature control pipes (2) are located in the same plane; The side plates (3) are arranged on one side of the multiple temperature control pipes (2) and are used for placing battery cells away from the temperature control pipes (2); The heat-conducting fillings (4) are arranged between the temperature control pipes (2) and the side plates (3).

2. The temperature control device for testing a battery cell according to claim 1, wherein: The end pipe (1) comprises a water tank (11) and a water receiving pipe (12), wherein, The temperature control pipes (2) are fixedly arranged on the water tank (11) and are in communication with the inside of the same; One end of the water receiving pipe (12) is fixedly arranged on the water tank (11) and is in communication with the inside of the same, and the water receiving pipe (12) and the temperature control pipes (2) are oppositely arranged on the two sides of the water tank (11).

3. The temperature control device for testing a battery cell according to claim 2, wherein: The side plates (3) are provided with clamping grooves (301); The water tank (11) comprises a box body (111) and a clamping hook (112), the clamping hook (112) is fixedly arranged on the box body (111) and is clamped with the clamping groove (301).

4. The temperature control device for testing a battery cell according to claim 3, wherein: The side plates (3) are provided with two, and the two side plates (3) are arranged on the two sides of the temperature control pipes (2), respectively.

5. The temperature control device for testing a battery cell according to claim 4, wherein: The water tank (11) further comprises a fixing bolt (113), one of the side plates (3) is provided with a threaded hole (302), and the other of the side plates (3) is provided with a stepped hole (303), the fixing bolt (113) is connected in the threaded hole (302) through threaded cooperation and abuts against the inner wall of the stepped hole (303), and the fixing bolt (113) penetrates one of the box bodies (111).

6. The temperature control device for testing a battery cell according to claim 5, wherein: The cross section of the clamping hook (112) is L-shaped, and the directions of the two clamping hooks (112) connected with the two side plates (3) are opposite.

7. The temperature control device for testing a battery cell according to claim 3, wherein: The water tank (11) comprises a box body (111) and multiple water receiving pipes (114), one end of the water receiving pipe (114) is fixedly arranged on the box body (111) and is in communication with the inside of the same, the multiple water receiving pipes (114) correspond to the multiple temperature control pipes (2) one by one, and one end of the water receiving pipe (114) away from the box body (111) is inserted into the corresponding temperature control pipe (2).

8. The temperature control device for testing a battery cell according to claim 2, wherein: The end pipe (1) further comprises a pipe valve (13), and the pipe valve (13) is fixedly arranged in the water receiving pipe (12).

9. The temperature control device for testing a battery cell according to claim 1, wherein: It further comprises a rack (5), and the end pipe (1) is fixedly arranged on the rack (5).

10. The temperature control device for testing a battery cell according to claim 1, wherein: The multiple temperature control pipes (2) are arranged in parallel and at intervals.

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