Thermal management testing device of power battery

Abstract

The utility model relates to the technical field of vehicle thermal management, and discloses a thermal management testing device of a power battery, which comprises a bottom plate, two side vertical plates and two upright vertical plates, a battery accommodating cavity is defined by the two side vertical plates and the two upright vertical plates, and the battery accommodating cavity is communicated with the bottom plate. According to the thermal management testing device for the power battery, the side vertical plates, the upright vertical plates and the bottom plate can be conveniently disassembled and assembled by personnel, so that the flexibility of the personnel in use of the testing device is greatly improved, the working efficiency of the personnel is improved, and the working efficiency of the personnel is improved. The problems that in the prior art, installation between a vertical plate and a bottom plate is achieved through a plurality of fastening screws, when a person needs to disassemble and assemble the testing device, a specific wrench tool needs to be used for screwing on or screwing off the fastening screws one by one, disassembly and assembly are tedious, and the flexibility of the testing device in use is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle thermal management technology, specifically to a thermal management testing device for power batteries. Background Technology

[0002] As the core energy supply component of pure electric vehicles, the safety, power performance, and energy density of power batteries are crucial to ensuring high safety, excellent driving experience, and low energy consumption in new energy vehicles. The characteristics of power batteries are significantly affected by ambient temperature. Whether in high-temperature environments, there are potential risks such as thermal runaway caused by heat accumulation in the battery, or in low-temperature environments, there are risks of energy and power degradation and accelerated battery aging. All of these require the battery system to have some effective thermal management components to ensure that the battery is in a good operating temperature range. During the battery production process, it is necessary to design battery thermal management based on information such as cell type, cell arrangement, and cell heating, and to conduct simulation to verify the effectiveness of the thermal management scheme.

[0003] According to Chinese Patent Publication No. CN218512587U, a thermal management testing device for power batteries is disclosed. This device comprises a base plate and a vertical plate, which are assembled and fixed to form a housing. The housing is used to house the battery cells to be tested. At least a portion of the base plate and / or at least a portion of the vertical plate has a heat exchange function. When testing the battery cells, the cells are placed in the housing. Based on the heat exchange function of at least a portion of the base plate and / or at least a portion of the vertical plate, heat exchange control such as cooling and heating can be achieved to simulate the temperature field distribution under different target thermal management schemes. This allows for simulation testing of the effects of different target thermal management schemes, verifying their effectiveness. The device is highly accurate, simple, and fast, saving time, reducing the risk of delays, and avoiding waste of manpower, resources, and costs.

[0004] However, in this technical solution, the installation between the upright plate and the base plate is achieved by multiple fastening screws. This means that when personnel need to disassemble or assemble the test device, they need to use specific wrenches to tighten or loosen the fastening screws one by one, which is cumbersome and reduces the flexibility of the test device during use. Therefore, we propose a thermal management test device for power batteries. Utility Model Content

[0005] The purpose of this invention is to provide a thermal management testing device for power batteries, which solves the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thermal management testing device for a power battery, comprising a base plate, two side plates, and two front plates. The two side plates and two front plates form a battery accommodating cavity. A fixed base frame is fixedly installed on the outer side of each side plate and front plate near its bottom. A positioning post is fixedly installed on the top of the base plate. Positioning holes are provided on the fixed base frame, and the positioning post movably passes through the positioning holes. A screw is rotatably connected to the bottom of the base plate via a bearing seat. A cross-shaped connecting frame is threaded onto the outer wall of the screw. Through holes are provided on all four sides of the base plate. The four ends of the cross-shaped connecting frame pass through the four through holes. Pressure plates are slidably connected to the four ends of the cross-shaped connecting frame. The pressure plates are engaged with the top of the fixed base frame. A knob is fixedly installed on the bottom of the screw.

[0007] Preferably, the bottom end of the pressure plate is provided with a limiting groove, and the four ends of the cross connecting frame are fixedly installed with limiting sliders. The limiting sliders are slidably connected with the limiting grooves. By setting the limiting sliders and limiting grooves, the pressure plate can be limited, so that the pressure plate can be fixedly slid on the cross connecting frame.

[0008] Preferably, the cross connecting frame is adapted to the through hole. By setting the through hole, the cross connecting frame can be limited to ensure the normal lifting and lowering operation of the cross connecting frame.

[0009] Preferably, connecting plates are fixedly installed on both sides of the upright plate, and connecting slots are opened on the inner side of the side plate. The connecting plates are engaged in the connecting slots. By setting the connecting plates and connecting slots, the two upright plates and the two side plates can be connected and limited, which further improves the stability of the battery housing cavity formed between the two side plates and the two upright plates and ensures the normal conduct of power battery testing.

[0010] Preferably, the connecting plate is adapted to the connecting slot.

[0011] Preferably, a support block is fixedly installed at the bottom end of the base plate, and the number of support blocks is four. By setting the support blocks, the base plate can be provided with a certain support function.

[0012] This invention provides a thermal management testing device for power batteries. This power battery thermal management testing device has the following advantages:

[0013] (1) The thermal management test device for power batteries facilitates the disassembly and assembly of the side uprights, front uprights and base plates, thereby greatly improving the flexibility of personnel in using the test device and improving the work efficiency of personnel. It solves the problem that in the existing technical solution, the installation between the uprights and the base plates is achieved by multiple fastening screws, which means that when personnel need to disassemble and assemble the test device, they need to use specific wrenches to tighten or loosen the fastening screws one by one, which is cumbersome and reduces the flexibility of the test device in use.

[0014] (2) The thermal management test device for the power battery can connect and limit the two upright plates and the two side upright plates by setting a connecting plate and a connecting slot, which further improves the stability of the battery accommodating cavity formed between the two side upright plates and the two upright plates, and ensures the normal conduct of the power battery test. It has a simple structure and strong practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front sectional view of the present invention.

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram of section B.

[0019] In the diagram: 1. Base plate; 2. Side plate; 3. Front plate; 4. Screw; 5. Cross connector; 6. Perforation; 7. Pressure plate; 8. Limiting slider; 9. Limiting groove; 10. Fixed base frame; 11. Connecting plate; 12. Connecting slot; 13. Positioning post; 14. Positioning hole; 15. Support block; 16. Knob. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1-4 As shown, this utility model provides a technical solution: a thermal management testing device for a power battery, including a base plate 1, two side plates 2 and two front plates 3. The two side plates 2 and the two front plates 3 form a battery accommodating cavity. A fixed base frame 10 is fixedly installed on the outer side of the side plates 2 and the front plates 3 near the bottom. A positioning post 13 is fixedly installed on the top of the base plate 1. A positioning hole 14 is opened on the fixed base frame 10. The positioning post 13 moves through the positioning hole 14. A screw 4 is rotatably connected to the bottom of the base plate 1 through a bearing seat. A cross connecting frame 5 is threaded on the outer wall of the screw 4. Through holes 6 are opened on the four sides of the base plate 1. The four ends of the cross connecting frame 5 pass through the four through holes 6 respectively. The four ends of the cross connecting frame 5 are slidably connected to pressure plates 7. The pressure plates 7 are snapped onto the top of the fixed base frame 10. A knob 16 is fixedly installed on the bottom of the screw 4.

[0024] The structure of the base plate 1, side plate 2 and front plate 3 and the specific power battery testing process are all disclosed technologies in the announcement number CN218512587U, entitled "Power Battery Thermal Management Testing Device". The base plate 1, side plate 2 and front plate 3 each include a heat exchange plate, a heat insulation plate and a fixing plate, so they are not described or drawn in detail in this article and the accompanying drawings.

[0025] Specifically, in the above technical solution, during installation, the thermal management testing device for the power battery can be directly assembled by forming a rectangle with two side plates 2 and two front plates 3, creating a battery housing cavity. The side plates 2 and front plates 3 then drive their respective fixed base frames 10 to contact the base plate 1, allowing the positioning pins 13 to penetrate the positioning holes 14. The pressure plate 7 can then be pushed towards the fixed base frame 10, positioning it above the fixed base frame 10. Then, the knob 16 is rotated, causing the screw 4 to rotate. The screw 4 drives the cross connecting frame 5 downwards, which in turn drives the pressure plate 7 downwards via the limiting slider 8, pressing the pressure plate 7 against the fixed base frame 10. This completes the installation and fixation of the two side plates 2 and the front plates 3 on the base plate 1. When disassembly of the thermal management testing device for the power battery is required, the knob 16 can be rotated in the opposite direction, causing the screw 4 to drive the cross connecting frame 5 downwards. The cross-shaped connecting bracket 5 moves upward, causing the pressure plate 7 to no longer press against the fixed base frame 10. Then, the pressure plate 7 is pulled outward so that it is no longer above the fixed base frame 10. Then, the side upright plate 2 and the front upright plate 3 can be pulled upward, causing the fixed base frame 10 to disengage from the positioning column 13. This completes the disassembly of the two side upright plates 2, the front upright plate 3, and the base plate 1. The above structure facilitates the disassembly and assembly of the side upright plates 2, the front upright plate 3, and the base plate 1, thereby greatly improving the flexibility of personnel in using the testing device and increasing their work efficiency. It solves the problem that in the existing technical solution, the installation between the upright plate and the base plate 1 is achieved by multiple fastening screws, which requires personnel to use specific wrenches to tighten or loosen the fastening screws one by one when disassembling or assembling the testing device. This is cumbersome and reduces the flexibility of the testing device in use.

[0026] Furthermore, a limiting groove 9 is provided at the bottom of the pressure plate 7, and limiting sliders 8 are fixedly installed at all four ends of the cross connecting frame 5. The limiting sliders 8 are slidably connected to the limiting groove 9.

[0027] By setting the limiting slider 8 and the limiting groove 9, the pressure plate 7 can be limited, so that the pressure plate 7 can be fixed and slid on the cross connecting frame 5.

[0028] Furthermore, the cross connector 5 is compatible with the perforation 6;

[0029] The perforation 6 can be used to limit the movement of the cross connecting frame 5, ensuring its normal lifting and lowering operation.

[0030] Furthermore, connecting plates 11 are fixedly installed on both sides of the upright plate 3, and connecting slots 12 are opened on the inner side of the side upright plate 2, and the connecting plates 11 are snapped into the connecting slots 12.

[0031] By setting the connecting plate 11 and the connecting slot 12, the two upright plates 3 and the two side upright plates 2 can be connected and limited, which further improves the stability of the battery accommodating cavity formed between the two side upright plates 2 and the two upright plates 3, and ensures the normal conduct of power battery testing.

[0032] Furthermore, the connecting plate 11 is adapted to the connecting slot 12.

[0033] Furthermore, four support blocks 15 are fixedly installed at the bottom end of the base plate 1.

[0034] Among them, by setting the support block 15, the base plate 1 can play a certain supporting role.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A thermal management testing device for power batteries, comprising a base plate (1), side plates (2), and a front plate (3), characterized in that: There are two side panels (2) and two front panels (3). The two side panels (2) and the two front panels (3) form a battery housing cavity. A fixed base frame (10) is fixedly installed on the outer side of each side panel (2) and the front panel (3) near its bottom. A positioning post (13) is fixedly installed on the top of the base plate (1). A positioning hole (14) is provided on the fixed base frame (10), and the positioning post (13) moves through the positioning hole (14). The bottom end of the base plate (1) is rotatably connected to a screw (4) via a bearing seat. A cross connecting frame (5) is threaded on the outer wall of the screw (4). The base plate (1) has through holes (6) on all four sides. The four ends of the cross connecting frame (5) pass through the four through holes (6). The four ends of the cross connecting frame (5) are slidably connected to pressure plates (7). The pressure plates (7) are snapped onto the top of the fixed base frame (10). A knob (16) is fixedly installed at the bottom end of the screw (4).

2. The thermal management testing device for power batteries according to claim 1, characterized in that: The pressure plate (7) has a limiting groove (9) at its bottom end, and the cross connecting frame (5) has limiting sliders (8) fixedly installed at all four ends. The limiting sliders (8) are slidably connected to the limiting grooves (9).

3. The thermal management testing device for power batteries according to claim 1, characterized in that: The cross connector (5) is adapted to the perforation (6).

4. The thermal management testing device for power batteries according to claim 1, characterized in that: Connecting plates (11) are fixedly installed on both sides of the upright plate (3), and connecting slots (12) are opened on the inner side of the side upright plate (2), and the connecting plates (11) are engaged in the connecting slots (12).

5. The thermal management testing device for power batteries according to claim 4, characterized in that: The connecting plate (11) is adapted to the connecting slot (12).

6. The thermal management testing device for power batteries according to claim 1, characterized in that: The bottom end of the base plate (1) is fixedly installed with a support block (15), and the number of the support blocks (15) is four.

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