Cell short circuit performance detection device

Abstract

The utility model relates to the technical field of battery cell performance detection matching devices, in particular to a battery cell short circuit performance detection device which comprises a connecting plate, an end baffle, an upper protection plate, a through groove, a sliding block, a core shaft, a contact head, a connecting block, an electric push rod, a push strip, a mounting groove, a roll shaft and a positioning knob. The end baffle is fixedly connected to the surface, close to the left end, of the connecting plate, one end of the upper protection plate is slidably connected with the upper end of the end baffle, the through groove is formed in the middle of the upper protection plate in a penetrating mode, the number of the sliding blocks is at least two, and the sliding blocks are slidably connected into the through groove. A threaded groove is formed in the outer surface of the core shaft, the core shaft is vertically connected to the middle of each sliding block in a threaded mode, the lower end of the core shaft penetrates through the lower surface of the sliding block, and the device has the effects that the battery cell body can be rapidly straightened, the adjustment convenience is good, and rapid and stable connection is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell performance detection supporting devices, and in particular to a battery cell short-circuit performance detection device. Background Art

[0002] Battery cells are the core components of energy storage devices in the modern new energy field. They are the power source of power equipment based on electric energy. During the assembly process of battery cells, they are mostly stacked in form, connected in series or in parallel to form modules of a certain power and volume, and positive and negative electrodes are set for connection of various electrical equipment. During use, the stability of the battery cells is relatively important and is the basis for the widespread use of battery cells. Therefore, during the production process of manufacturers, the battery cells also need to be tested, especially the short-circuit performance test, to obtain whether the safety control module of the battery cell is working normally, whether the battery cell is hot and deformed, and whether the current exceeds the set safety value. However, since the stacked battery cells are heavy, after taking the sample, they need to be placed on the testing platform, which is inconvenient to place and adjust the position. The battery cells cannot be quickly straightened and the electrodes cannot be quickly connected. Therefore, the existing desktop testing platform needs to be improved to solve these problems. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this application is to provide a battery cell short-circuit performance detection device that can quickly align the battery cell, has good adjustment convenience, and can achieve fast and stable connection.

[0004] The above-mentioned application objectives of this application are achieved through the following technical solutions:

[0005] A short-circuit performance detection device for a battery cell comprises: a connecting plate, an end baffle, an upper guard plate, a through slot, a sliding block, a core shaft, a contact head, a connecting block, an electric push rod, a push bar, a mounting slot, a roller shaft and a positioning knob. The connecting plate has a rectangular appearance, the end baffle is fixedly connected to the surface of the connecting plate near the left end, one end of the upper guard plate is slidably connected to the upper end of the end baffle, the through slot is opened in the middle of the upper guard plate, at least two sliding blocks are provided, the sliding blocks are respectively slidably connected in the through slot, the outer surface of the core shaft is provided with a threaded groove, and the core shaft is respectively vertically threadedly connected to each The middle part of the sliding block, the lower end of the core shaft passes through the lower surface of the sliding block, the contact heads are rotatably connected to the lower ends of the core shafts respectively, the connecting block is fixedly connected to the surface of the right end of the connecting plate, the connecting end of the electric push rod is fixedly connected to the surface of the connecting block facing the end baffle side, the middle part of the pushing bar is fixedly connected to the telescopic end of the electric push rod, the mounting grooves are symmetrically opened on the surfaces on both sides of the middle position of the connecting plate, the rollers are equidistantly rotatably connected in each mounting groove, the positioning knob is arranged at the upper end of the sliding block, and the middle of the positioning knob is threadedly connected to the outer surface of the core shaft respectively.

[0006] Optionally, it also includes support legs, which are fixedly connected to the lower surface of the four corners of the connecting plate in a rectangular array.

[0007] Optionally, it also includes a slide groove, which is symmetrically opened on the surface of the connecting plate near both sides, and the lower ends of the pushing bars are slidably connected to the slide grooves respectively.

[0008] Optionally, a reinforcement seat is further included, the reinforcement seat has a trapezoidal appearance, and the reinforcement seat is fixedly connected to the surface of the push bar facing the electric push rod.

[0009] Optionally, an adjustment handle is further included, wherein the adjustment handle is fixedly connected to the upper surface of the end where the upper guard plate is connected to the end baffle.

[0010] Optionally, it also includes scale lines, which are equidistantly arranged on the upper surface of the upper guard plate corresponding to both sides of the through slot.

[0011] Optionally, it also includes a control module, which is fixedly connected to the surface of the left end of the connecting plate, the input end of the control module is electrically connected to the output end of the external power supply, and the output end of the control module is electrically connected to the upper end of the core shaft.

[0012] This battery cell short-circuit performance testing device can move the battery cell body through the provided electric push rod, and then quickly adjust the position of the battery cell body and connect it through the provided push bar and end baffle, greatly reducing the time consumed in moving and placing the battery cell during the existing testing process;

[0013] The battery cell short-circuit performance detection device is equipped with a roller in the mounting groove at the bottom, which can reduce the friction resistance of the battery cell body during movement, making it easier to move, helping to increase the alignment speed, and making the operation more flexible and convenient to adjust.

[0014] The battery cell short-circuit performance detection device is provided with a contact head that can change position, thereby quickly connecting the positive and negative poles of the battery cell. Under the adjustment of the provided positioning knob, a stable connection is achieved without loosening, ensuring that the test is carried out normally, greatly reducing manual labor intensity, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure provided by the embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the left end structure provided by an embodiment of the present application;

[0017] Figure 3 This is a schematic diagram of the bottom structure provided in an embodiment of the present application.

[0018] Figure markings: 1. Connecting plate; 2. End baffle; 3. Upper guard plate; 4. Through slot; 5. Sliding block; 6. Core shaft; 7. Contact head; 8. Connecting block; 9. Electric push rod; 10. Push bar; 11. Mounting slot; 12. Roller; 13. Positioning knob; 14. Support leg; 15. Slide slot; 16. Reinforcement seat; 17. Adjustment handle; 18. Scale line; 19. Control module; 20. Battery cell body. DETAILED DESCRIPTION

[0019] The present application is further described in detail below with reference to the accompanying drawings.

[0020] In order to more clearly understand the technical solutions presented in the embodiments of the present application, the working principle of the existing battery cell short-circuit performance detection device is first introduced.

[0021] After the existing battery cells are manufactured and tested, several samples will be randomly selected to test the short-circuit performance of the battery cells. Since the current during the short-circuit process of the battery cells is large, they need to be placed on a special support platform for operation to ensure rapid fire extinguishing in unexpected situations and stability during the testing process. Therefore, the battery cells need to be placed on the testing platform. However, since the battery cells are heavy, after being placed using a forklift or other transport device, the placement of the battery cells is not regular enough and cannot be well connected to the electrodes used for testing. The position needs to be adjusted. However, since the battery cells are heavy and inconvenient to move, the adjustment and connection process is time-consuming, resulting in low detection efficiency. Therefore, it is necessary to improve the existing desktop testing equipment to solve these problems.

[0022] See also Figure 1 and Figure 2 , which is a short-circuit performance detection device for a battery cell disclosed in an embodiment of the present application, comprising: a connecting plate 1, an end baffle 2, an upper guard plate 3, a through slot 4, a sliding block 5, a core shaft 6, a contact head 7, a connecting block 8, an electric push rod 9, a push bar 10, an installation slot 11, a roller 12 and a positioning knob 13. The connecting plate 1 has a rectangular appearance, the end baffle 2 is fixedly connected to the surface of the connecting plate 1 near the left end, one end of the upper guard plate 3 is slidably connected to the upper end of the end baffle 2, the through slot 4 is opened in the middle position of the upper guard plate 3, at least two sliding blocks 5 are provided, and the sliding blocks 5 are respectively slidably connected in the through slot 4, the outer surface of the core shaft 6 is provided with a threaded groove, and the core shaft 6 is respectively A vertical thread is connected to the middle of each sliding block 5, the lower end of the core shaft 6 passes through the lower surface of the sliding block 5, the contact heads 7 are respectively rotatably connected to the lower ends of the core shafts 6, the connecting block 8 is fixedly connected to the surface of the right end of the connecting plate 1, the connecting end of the electric push rod 9 is fixedly connected to the surface of the connecting block 8 facing the end baffle 2, the middle part of the pushing bar 10 is fixedly connected to the telescopic end of the electric push rod 9, the mounting grooves 11 are symmetrically opened on the surfaces on both sides of the middle position of the connecting plate 1, the roller shafts 12 are respectively equidistantly rotatably connected in each mounting groove 11, the positioning knob 13 is set at the upper end of the sliding block 5, and the middle of the positioning knob 13 is respectively threadedly connected to the outer surface of the core shaft 6.

[0023] Specifically, the connecting plate 1 is used to provide a platform for connection and fixation, so as to support the components and the battery cell body 20 without deformation. The end baffle 2 is able to contact one end of the battery cell body 20 and block it, so as to quickly straighten it, thereby facilitating the improvement of the adjustment speed. The upper guard plate 3 is able to protect the upper end of the battery cell body 20 on the one hand, to avoid dangerous phenomena such as splashing in accidental situations, and to connect the core shaft 6 at the upper end. The core shaft 6 can slide on the through groove 4 following the sliding block 5, so that the contact head 7 at the lower end of the core shaft 6 can be moved to different positions, and can be connected to different electrode positions in conjunction with the movement of the upper guard plate 3. The contact head 7 is made of a copper alloy material with good conductivity and high hardness, and the core shaft 6 adopts a double-layer or multi-layer structure, with an insulating ceramic material on the outside and a copper core on the inside. , and connect cables and other lines at the upper end for detecting conductive use. The provided connecting block 8 can connect one end of the electric push rod 9, and then the push bar 10 moves on the surface of the connecting plate 1 under the extension and contraction of the electric push rod 9, so that the push bar 10 contacts one side of the battery body 20 and pushes it to the side of the end baffle 2 to correct its position. The provided mounting groove 11 can be used to connect several rollers 12, thereby reducing friction resistance during the pushing process of the battery body 20. It should be noted that the mounting groove 11 needs to be opened symmetrically and its width cannot be too large to ensure the support firmness of the connecting plate 1 and avoid the phenomenon of insufficient firmness when using a heavier battery body 20. The provided positioning knob 13 can fix the adjusted position of the core shaft 6, so that its position remains at a limited position to ensure stability during the detection process.

[0024] See also Figure 3 As another specific embodiment provided by the application, it also includes support legs 14, which are fixedly connected to the lower surface of the four corners of the connecting plate 1 in a rectangular array.

[0025] Specifically, the support legs 14 can firmly support the connecting plate 1 at a certain height, which is convenient for operation and connection of equipment.

[0026] See also Figure 2 As another specific embodiment provided in the application, it also includes a slide groove 15, which is symmetrically opened on the surface of the connecting plate 1 near both sides, and the lower ends of the push bars 10 are slidingly connected to the slide grooves 15 respectively.

[0027] Specifically, the arrangement of the slide groove 15 can limit the travel trajectory of the push bar 10 , thereby preventing it from being deflected and improving the neatness of the adjustment.

[0028] See also Figure 2As another specific embodiment provided in the application, it also includes a reinforcement seat 16, which has a trapezoidal appearance and is fixedly connected to the surface of the push bar 10 facing the electric push rod 9.

[0029] Specifically, the provision of the reinforcement seat 16 can disperse the pushing force of the electric push rod 9 so that it is distributed at each position of the pushing bar 10, which helps to improve the stability during the pushing process and extend the service life.

[0030] See also Figure 1 As another specific embodiment provided by the application, it also includes an adjustment handle 17, which is fixedly connected to the upper surface of the end where the upper guard plate 3 is connected to the end baffle 2.

[0031] Specifically, the arrangement of the adjustment handle 17 can more conveniently move the end baffle 2, thereby facilitating the adjustment process.

[0032] See also Figure 2 As another specific embodiment provided by the application, it also includes scale lines 18, which are equidistantly arranged on the upper surface of the upper guard plate 3 corresponding to both sides of the through groove 4.

[0033] Specifically, the setting of the scale lines 18 makes it easier to observe the adjusted position of each sliding block 5, facilitates rapid adjustment of the position of the contact head 7, and helps to improve the connection speed.

[0034] See also Figure 1 As another specific embodiment provided by the application, it also includes a control module 19, which is fixedly connected to the surface of the left end of the connecting plate 1, the input end of the control module 19 is electrically connected to the output end of the external power supply, and the output end of the control module 19 is electrically connected to the upper end of the core shaft 6.

[0035] Specifically, the control module 19 is configured to control the on / off switches of sensors, etc., control the extension and retraction of the electric push rod 9, and collect relevant detection data to realize an automatic detection process.

[0036] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A battery cell short circuit performance detection device, characterized in that: include: A connecting plate (1), an end baffle (2), an upper guard plate (3), a through groove (4), a sliding block (5), a core shaft (6), a contact head (7), a connecting block (8), an electric push rod (9), a push bar (10), a mounting groove (11), a roller shaft (12) and a positioning knob (13), wherein the connecting plate (1) has a rectangular appearance, the end baffle (2) is fixedly connected to the surface of the connecting plate (1) near the left end, one end of the upper guard plate (3) is slidably connected to the upper end of the end baffle (2), the through groove (4) is opened through the middle position of the upper guard plate (3), at least two sliding blocks (5) are provided, and the sliding blocks (5) are respectively slidably connected in the through groove (4), the outer surface of the core shaft (6) is provided with a threaded groove, and the core shaft (6) is respectively vertically threadedly connected to each The middle part of the sliding block (5), the lower end of the core shaft (6) passes through the lower surface of the sliding block (5), the contact heads (7) are respectively rotatably connected to the lower ends of the core shafts (6), the connecting block (8) is fixedly connected to the surface of the right end of the connecting plate (1), the connecting end of the electric push rod (9) is fixedly connected to the surface of the connecting block (8) facing the end baffle (2), the middle part of the pushing bar (10) is fixedly connected to the telescopic end of the electric push rod (9), the mounting groove (11) is symmetrically opened on the surfaces on both sides of the middle position of the connecting plate (1), the roller shaft (12) is respectively equidistantly rotatably connected in each mounting groove (11), the positioning knob (13) is set at the upper end of the sliding block (5), and the middle part of the positioning knob (13) is respectively threadedly connected to the outer surface of the core shaft (6).

2. A battery cell short-circuit performance detection device according to claim 1, characterized in that: It also includes support legs (14), which are fixedly connected to the lower surface of the four corners of the connecting plate (1) in a rectangular array.

3. The battery cell short-circuit performance detection device according to claim 1, characterized in that: It also includes a slide groove (15), which is symmetrically opened on the surface of the connecting plate (1) close to both sides, and the lower ends of the pushing strips (10) are respectively slidably connected to the slide grooves (15).

4. The battery cell short-circuit performance detection device according to claim 1, characterized in that: It also includes a reinforcement seat (16), the reinforcement seat (16) has a trapezoidal appearance, and the reinforcement seat (16) is fixedly connected to the surface of the push bar (10) on the side facing the electric push rod (9).

5. The battery cell short-circuit performance detection device according to claim 1, characterized in that: It also includes an adjustment handle (17), wherein the adjustment handle (17) is fixedly connected to the upper surface of the end where the upper guard plate (3) is connected to the end baffle (2).

6. The battery cell short-circuit performance detection device according to claim 1, characterized in that: It also includes scale lines (18), which are equidistantly arranged on the upper surface of the upper guard plate (3) corresponding to both sides of the through slot (4).

7. The battery cell short-circuit performance detection device according to claim 1, characterized in that: It also includes a control module (19), the control module (19) is fixedly connected to the surface of the left end of the connecting plate (1), the input end of the control module (19) is electrically connected to the output end of the external power supply, and the output end of the control module (19) is electrically connected to the upper end of the core shaft (6).

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