Solid-state lithium battery pack safety testing device

Abstract

The utility model relates to the field of safety testing devices, in particular to a solid-state lithium battery pack safety testing device which comprises a testing box and a supporting baffle, rotating blocks are fixedly connected to the left side and the right side of the supporting baffle, and a first screw is rotated to drive a connecting frame to horizontally slide along the supporting baffle to reach the position of a box opening; solid-state lithium battery packs of different sizes are placed between two clamping plates, then a rotating wheel is rotated to drive a bidirectional screw to rotate, the bidirectional screw rotates to drive the two clamping plates to move oppositely at the same time through two push plates and a push rod and clamp the lithium battery packs, at the moment, a first screw is rotated reversely, and then the lithium battery packs are clamped. The lithium battery pack is located in the middle of the supporting baffle, then the supporting baffle is driven by the rotating block to rotate, the lithium battery pack is located in different cavities, and safety testing can be carried out when the lithium battery pack is used in different environments through the heating module and the refrigerating module.

Description

Technical Field

[0001] This utility model relates to the technical field of safety testing devices, specifically a safety testing device for solid-state lithium battery packs. Background Technology

[0002] Battery packs can be connected in series or in parallel. Parallel battery packs require each battery to have the same voltage, and the output voltage is equal to the voltage of one battery. Parallel battery packs can provide a stronger current. Series battery packs do not have as many requirements. Battery packs usually need to be tested for performance before leaving the factory to ensure that their quality is up to standard.

[0003] A search revealed a battery pack reliability testing device disclosed in Chinese Patent Publication No. CN218158271U. This device conducts the entire testing process inside a housing, utilizing cooling fans on both sides of the upper part of the housing for heat dissipation, ensuring good ventilation and enhancing overall safety. The cooling fans are installed and fixed by connecting plates of the filter frame to connecting blocks on both sides of the upper part of the housing. When the cooling fans are inserted into the housing, the connecting plates rest on top of the housing, providing a limiting effect. At this point, the curved blocks can be slid to allow the lower... The square guide block slides outside the guide rod inside the connecting block. As the guide block slides, it drives the L-shaped connecting rod connected below to move to one side until the L-shaped connecting rod penetrates the connecting block and enters the movable groove B on one side of the connecting plate. At the same time, the locking block on one side of the L-shaped connecting rod also locks into the locking groove inside the vertical plate inside the movable groove B for fixation. Meanwhile, the movable rod connected to the arc-shaped block through the movable shaft can also rotate to one side under the drive of the movable shaft until it reaches the positioning hole inside and penetrates into the positioning block on the upper surface of the connecting plate to fix the whole.

[0004] However, this device cannot perform safety tests on lithium battery packs used in different environments. Lithium battery packs need to be used in different environments and temperatures during use, so the safety of lithium battery packs at different temperatures is particularly important. The inability to perform safety tests on lithium battery packs used in different environments may easily lead to problems such as explosions or unusability of lithium battery packs at high or low temperatures.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] The aforementioned background technology addresses the issue that existing technologies cannot perform safety tests on lithium battery packs used in different environments.

[0007] This utility model discloses a solid-state lithium battery pack safety testing device, including a test chamber and a support baffle. Rotating blocks are fixedly connected to both sides of the support baffle, and the outer surface of each rotating block is rotatably connected to the test chamber. A connecting frame is slidably connected to the inner wall of the support baffle, and two first screws are threadedly connected to the inner wall of the connecting frame. Four support plates are fixedly connected to the outer surface of the support baffle, and each support plate is rotatably connected to a corresponding first screw. A bidirectional screw is rotatably connected to the inner wall of the connecting frame, and a rotating wheel is fixedly connected to one end of each bidirectional screw. Two push plates are threadedly connected to the outer surface of the bidirectional screw, and a push rod is slidably connected to the inner wall of each push plate. Clamping plates are fixedly connected to the ends of the two push rods that are close to each other. A heating module is fixedly installed on the inner bottom wall of the test chamber, and a cooling module is fixedly installed on the inner top wall of the test chamber.

[0008] Furthermore, each of the push rods has a spring fitted onto its outer surface. The ends of the two springs that are far apart from each other are fixedly connected to the corresponding push plate, and the other ends are fixedly connected to the corresponding clamping plate.

[0009] Furthermore, each of the first screws has an internal hexagonal slot at one end, and the outer surface of the support baffle has a fixing slot. The inner wall of the fixing slot is fitted with a connector, and the outer surface of the connector can be inserted into both internal hexagonal slots.

[0010] Furthermore, each of the first screws is fixedly connected to a drive wheel at the end away from the corresponding internal hexagonal slot, and a drive belt is provided between the two drive wheels, with the outer surface of each drive wheel being connected to the drive belt for transmission.

[0011] Furthermore, a control panel is fixedly installed on the upper surface of the test chamber, and four sliding grooves are provided on the inner wall of the test chamber.

[0012] Furthermore, the test chamber is equipped with two blocking covers inside, and the outer surface of each blocking cover is slidably connected to a corresponding groove.

[0013] Furthermore, an observation window is fixedly installed on the outer surface of each of the two blocking covers, and an elastic plate is fixedly connected to the side of the two blocking covers that are close to each other. The outer surface of each elastic plate is engaged with the supporting baffle.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model comprises components such as a support baffle, a rotating block, a test chamber, a support plate, a first screw, a connecting frame, a bidirectional screw, a rotating wheel, a push plate, a push rod, a clamping plate, a heating module, and a cooling module. By rotating the first screw, the connecting frame slides horizontally along the support baffle until it reaches the chamber opening. Solid-state lithium battery packs of different sizes are placed between two clamping plates. Then, rotating the rotating wheel causes the bidirectional screw to rotate. The rotation of the bidirectional screw causes the two push plates and push rods to move the two clamping plates in opposite directions simultaneously, clamping the lithium battery packs. At this time, rotating the first screw in the opposite direction places the lithium battery packs in the middle of the support baffle. Then, the rotating block drives the support baffle to rotate, placing the lithium battery packs in different cavities. The heating and cooling modules enable safety testing of the lithium battery packs under different environmental conditions.

[0016] 2. This utility model, by setting up components such as a blocking cover, observation window, slide groove, elastic retaining plate, and support baffle, can complete the sealing of the test chamber by vertically inserting the blocking cover along the corresponding slide groove. Then, rotating the rotating block causes the support baffle to rotate around the central axis of the rotating block until the support baffle engages with the two elastic retaining plates. During this process, the support baffle will squeeze the elastic retaining plates to deform them. Then, the elastic retaining plates will reset when the support baffle is engaged with the elastic retaining plates. In this way, the test chamber can be divided into two cavities through the support baffle, thereby achieving the effect of quickly fixing the support baffle through the engagement between the elastic retaining plates and the support baffle. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the test chamber of this utility model;

[0020] Figure 3 This is a schematic diagram of the support baffle structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the bidirectional screw structure of this utility model.

[0022] In the diagram: 1. Test box; 2. Slide groove; 3. Block cover; 4. Elastic clamping plate; 5. Observation window; 6. Rotating block; 7. Support baffle; 8. Heating module; 9. Cooling module; 10. Fixing groove; 11. Connector; 12. Support plate; 13. First screw; 14. Hex socket; 15. Connecting frame; 16. Transmission wheel; 17. Transmission belt; 18. Push plate; 19. Double screw; 20. Rotary wheel; 21. Push rod; 22. Clamping plate; 23. Spring; 24. Control panel. Detailed Implementation

[0023] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0024] Please see Figure 1 - Figure 4 This utility model discloses a solid-state lithium battery pack safety testing device, comprising a test chamber 1 and a support baffle 7. Rotating blocks 6 are fixedly connected to both the left and right sides of the support baffle 7. The support baffle 7 is located inside the test chamber 1. By rotating the rotating blocks 6, the supporting baffle 7 rotates around its central axis. The outer surface of each rotating block 6 is rotatably connected to the test chamber 1. A connecting frame 15 is slidably connected to the inner wall of the support baffle 7. Two cross grooves are formed inside the support baffle 7, allowing the connecting frame 15 to slide horizontally along these grooves. Two first screws 13 are threadedly connected to the inner wall of the connecting frame 15. By rotating the first screws 13, the connecting frame 15 moves horizontally. Four support plates 12 are fixedly connected to the outer surface of the support baffle 7, each support plate 12 being rotatably connected to a corresponding first screw 13. Specifically, the support plates 12 support the first screws 13.

[0025] In a preferred embodiment, a bidirectional screw 19 is rotatably connected to the inner wall of the connecting frame 15. A rotating wheel 20 is fixedly connected to one end of the bidirectional screw 19. The bidirectional screw 19 is located on the side of the connecting frame 15 away from the first screw 13. By rotating the rotating wheel 20, the rotating wheel 20 will drive the bidirectional screw 19 to rotate. Two push plates 18 are threadedly connected to the outer surface of the bidirectional screw 19. The rotation of the bidirectional screw 19 will drive the two push plates 18 to move simultaneously along the bidirectional screw 19 in opposite directions. A push rod 21 is slidably connected to the inner wall of each push plate 18. The horizontal sliding of the push plate 18 will drive the corresponding clamping plate 22 to move in opposite directions through the corresponding push rod 21. The clamping plate 22 can clamp lithium battery packs of different sizes. An anti-slip pad is provided on the outer surface of each clamping plate 22. The clamping plate 22 is fixedly connected to the end of the two push rods that are close to each other.

[0026] In this embodiment, a heating module 8 is fixedly installed on the inner bottom wall of the test chamber 1, and a cooling module 9 is fixedly installed on the inner top wall of the test chamber 1. Specifically, the heating module 8 can heat the inside of the test chamber 1. When the lithium battery pack is below the support baffle 7, the heating module 8 is activated to heat the lithium battery pack. Then, when the lithium battery pack is above the support baffle 7, the heating module 8 stops, and the cooling module 9 is activated to cool the lithium battery pack. In this way, the safety of the lithium battery pack at different temperatures can be simulated through the heating module 8 and the cooling module 9.

[0027] In this embodiment, each push rod 21 is fitted with a spring 23 on its outer surface. The ends of the two springs 23 that are far apart from each other are fixedly connected to the corresponding push plate 18, and the other ends are fixedly connected to the corresponding clamping plate 22. Specifically, the springs 23 are designed to provide a certain buffer during the clamping of the lithium battery pack, preventing the lithium battery pack from being damaged by collision with the clamping plate 22 due to excessive instantaneous clamping force. During continuous clamping, the clamping force slowly increases until the lithium battery pack is completely clamped.

[0028] In this embodiment, each first screw 13 has an internal hexagonal groove 14 at one end, and a fixing groove 10 is provided on the outer surface of the support baffle 7. The fixing groove 10 is located on the side of the support baffle 7 away from the lithium battery pack. A connector 11 is snapped into the inner wall of the fixing groove 10. The outer surface of the connector 11 can be inserted into both internal hexagonal grooves 14. Specifically, by taking the connector 11 out of the fixing groove 10 and then inserting it into one of the internal hexagonal grooves 14, rotating the connector 11 can drive the first screw 13 to rotate.

[0029] In this embodiment, a transmission wheel 16 is fixedly connected to one end of each first screw 13 away from the corresponding internal hexagonal slot 14. A transmission belt 17 is provided between the two transmission wheels 16. The outer surface of each transmission wheel 16 is connected to the transmission belt 17. Specifically, the two transmission wheels 16 are connected by the transmission belt 17 so that the two transmission wheels 16 can rotate simultaneously, thereby driving the two first screws 13 to rotate simultaneously. The connecting frame 15 can be moved by the mutual cooperation of the two first screws 13.

[0030] In this embodiment, a control panel 24 is fixedly installed on the upper surface of the test chamber 1. The cooling module 9 and the heating module 8 can be adjusted through the settings of the control panel 24. Hot air rises and cold air falls, so the heating module 8 is located at the bottom and the cooling module 9 is located at the top, which can speed up the temperature control of the lithium battery pack. Four sliding grooves 2 are opened on the inner wall of the test chamber 1.

[0031] In this embodiment, the test chamber 1 is provided with two blocking covers 3 inside. The outer surface of each blocking cover 3 is slidably connected to the corresponding slide groove 2. Specifically, the slide groove 2 is set so that the blocking cover 3 can be inserted vertically along the corresponding slide groove 2, so that the blocking cover 3 can be quickly installed. At this time, the test chamber 1 can be closed by installing the two blocking covers 3.

[0032] In a preferred embodiment, an observation window 5 is fixedly installed on the outer surface of each blocking cover 3. The test conditions inside the test chamber 1 can be observed through the observation window 5. An elastic plate 4 is fixedly connected to the side of the two blocking covers 3 that are close to each other. The outer surface of each elastic plate 4 is engaged with the support baffle 7. Specifically, the elastic plate 4 is set so that the support baffle 7 engages with the two elastic plates 4 during the rotation of the support baffle 7 around the central axis of the rotating block 6. At this time, the support baffle 7 can be placed in a horizontal position. During this process, the support baffle 7 will squeeze the elastic plate 4 to deform it. Then the elastic plate 4 will reset when the support baffle 7 is engaged in the elastic plate 4.

[0033] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A solid-state lithium battery pack safety testing device, comprising a test chamber (1) and a support baffle (7), characterized in that: Rotating blocks (6) are fixedly connected to both the left and right sides of the support baffle (7). The outer surface of each rotating block (6) is rotatably connected to the test box (1). A connecting frame (15) is slidably connected to the inner wall of the support baffle (7). Two first screws (13) are threadedly connected to the inner wall of the connecting frame (15). Four support plates (12) are fixedly connected to the outer surface of the support baffle (7). Each support plate (12) is rotatably connected to the corresponding first screw (13). The inner surface of the connecting frame (15) is... The wall is rotatably connected to a bidirectional screw (19), one end of which is fixedly connected to a rotating wheel (20). The outer surface of the bidirectional screw (19) is threadedly connected to two push plates (18). Each push plate (18) has a push rod (21) slidably connected to its inner wall. The two push rods (21) are fixedly connected to a clamping plate (22) at their close ends. A heating module (8) is fixedly installed on the inner bottom wall of the test box (1), and a cooling module (9) is fixedly installed on the inner top wall of the test box (1).

2. The solid-state lithium battery pack safety testing device according to claim 1, characterized in that: Each push rod (21) has a spring (23) fitted on its outer surface. The ends of the two springs (23) that are far apart from each other are fixedly connected to the corresponding push plate (18), and the other ends are fixedly connected to the corresponding clamping plate (22).

3. The solid-state lithium battery pack safety testing device according to claim 1, characterized in that: Each of the first screws (13) has an internal hexagonal groove (14) at one end. The outer surface of the support baffle (7) has a fixing groove (10). The inner wall of the fixing groove (10) is fitted with a connector (11). The outer surface of the connector (11) can be inserted into both internal hexagonal grooves (14).

4. The solid-state lithium battery pack safety testing device according to claim 3, characterized in that: Each of the first screws (13) is fixedly connected to a drive wheel (16) at the end away from the corresponding internal hexagonal slot (14), and a drive belt (17) is provided between the two drive wheels (16), and the outer surface of each drive wheel (16) is connected to the drive belt (17) for transmission.

5. The solid-state lithium battery pack safety testing device according to claim 1, characterized in that: The test box (1) is fixedly mounted with a control panel (24) on its upper surface, and the inner wall of the test box (1) is provided with four sliding grooves (2).

6. The solid-state lithium battery pack safety testing device according to claim 5, characterized in that: The test chamber (1) is equipped with two blocking covers (3) inside, and the outer surface of each blocking cover (3) is slidably connected to the corresponding slide groove (2).

7. The solid-state lithium battery pack safety testing device according to claim 6, characterized in that: An observation window (5) is fixedly installed on the outer surface of each of the two blocking covers (3). An elastic plate (4) is fixedly connected to the side of the two blocking covers (3) that are close to each other. The outer surface of each elastic plate (4) is engaged with the support baffle (7).

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