A soft-pack lithium battery safety performance testing device

Abstract

The present invention relates to the field of safety testing technology for battery production, and in particular to a safety performance testing device for soft-pack lithium batteries, comprising a bottom support cabinet, a top rail fixedly mounted on the upper end of the bottom support cabinet, an electric conveyor belt mounted inside the top rail, a main drive motor, an electric telescopic push rod, and an electric-controlled hydraulic push rod fixedly mounted on both sides of the top rail. A safety performance testing device for soft-pack lithium batteries of the present invention has an arc-shaped adjustment groove with a built-in electric-controlled annular adjustment bracket inside the top rail, and an annular lateral adjustment groove with a built-in electric telescopic push rod on the outer arc surface of the annular adjustment bracket. The electric telescopic push rod cooperates with the electric-controlled annular adjustment bracket to clamp and fix the lithium battery and adjust the angle, and then cooperates with the electric-controlled hydraulic push rod to squeeze both sides of the battery, so that the outer extrusion force surface of the lithium battery is more extensive, which greatly improves the scope of application and has higher simulation authenticity.

Description

Technical Field

[0001] The invention relates to the technical field of safety detection for battery production, in particular to a safety performance detection device for soft-pack lithium batteries. Background Art

[0002] A fuel cell is a chemical device that converts the chemical energy of a fuel directly into electrical energy, also known as an electrochemical generator. It is the fourth power generation technology after hydroelectric power generation, thermal power generation, and atomic power generation. Since fuel cells convert the Gibbs free energy part of the chemical energy of the fuel into electrical energy through electrochemical reactions, they are not limited by the Carnot cycle effect, so they are highly efficient. In addition, fuel cells use fuel and oxygen as raw materials. At the same time, there are no mechanical transmission parts, so there is no noise pollution, and very few harmful gases are emitted. It can be seen that from the perspective of saving energy and protecting the ecological environment, fuel cells are the most promising power generation technology.

[0003] During the processing and production of fuel cells, it is necessary to test the safety of the battery. The battery is charged by simulating the pressure state of the soft-pack battery cells in the module, and the battery safety performance under overcharging in a simulated pressurized environment is tested. However, most of the current pressurizing mechanisms have fixed structures and are limited to a single pressurizing position, resulting in relatively weak simulation authenticity. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved soft-pack lithium battery safety performance detection device is provided to solve the problem that most of the current pressurizing mechanisms have fixed structures and limited pressurizing positions, resulting in relatively weak simulation authenticity.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a soft-pack lithium battery safety performance detection device, comprising a bottom support cabinet, a top guide rail fixedly installed on the upper end of the bottom support cabinet, an electric conveyor belt installed inside the top guide rail, a main drive motor, an electric telescopic push rod and an electric-controlled hydraulic push rod fixedly installed on both sides of the top guide rail, an arc-shaped adjustment groove is provided inside the top guide rail, an annular adjustment bracket is movably installed inside the arc-shaped adjustment groove and located outside the electric conveyor belt, an annular lateral adjustment groove is provided on the outer arc surface of the annular adjustment bracket, four internal fixing seats for fixing the electric telescopic push rod are fixedly connected on the inner arc surface of the annular lateral adjustment groove, the inner side surface of the annular lateral adjustment groove is located at the edge position and has an integrated structure transmission gear ring, the main drive motor is fixedly installed inside the bottom support cabinet by bolts, the top end of the rotating shaft of the main drive motor is axially fixedly connected with an internal transmission gear, and the main drive motor is inserted into the annular lateral adjustment groove through the internal transmission gear to mesh with the transmission gear ring for transmission.

[0006] Furthermore, in order to cooperate with extrusion, fixation and storage, lateral storage grooves are opened on both sides of the top guide rail corresponding to the positions of the electric-controlled hydraulic push rods, the top end of the inner telescopic rod of the electric-controlled hydraulic push rod is axially fixedly connected with an internal extrusion plate, the inner side surface of the lateral storage groove and the outer connecting surface of the internal extrusion plate both have lateral inclined surfaces, the center position of the outer side surface of the internal extrusion plate is fixedly connected with an external assembly shaft cylinder protruding outward, and the top end of the telescopic rod of the electric-controlled hydraulic push rod is fixedly connected to the outer side surface of the internal extrusion plate by inserting into the external assembly shaft cylinder.

[0007] Furthermore, in order to reduce friction resistance, a plurality of lateral mounting grooves with built-in lateral rollers are provided on the inner plane of the arc-shaped adjustment groove.

[0008] Furthermore, in order to improve transmission stability, the inner side surface of the arc-shaped adjustment groove is provided with an arc-shaped internal limiting plate at the outer opening position for improving the assembly stability of the annular adjustment bracket.

[0009] Furthermore, in order to cooperate with clamping and fixing, an inner arc surface of the annular adjustment bracket is provided with an internal storage groove with a built-in L-shaped structure fixing clamp corresponding to the assembly end of the electric telescopic push rod.

[0010] Furthermore, in order to facilitate adjustment, an external transition opening that cooperates with the electric telescopic push rod is opened on the outer side surface of the top guide rail.

[0011] The beneficial effects of the present invention are:

[0012] A soft-pack lithium battery safety performance detection device of the present invention is provided with an arc-shaped adjustment groove with a built-in electric-controlled annular adjustment bracket inside the top guide rail, and an annular lateral adjustment groove with a built-in electric telescopic push rod is provided on the outer arc surface of the annular adjustment bracket. The lithium battery is clamped and the angle is adjusted by the electric telescopic push rod in cooperation with the electric-controlled annular adjustment bracket, and then the two sides of the battery are squeezed in cooperation with the electric-controlled hydraulic push rod, so that the outer side of the lithium battery is more extensively squeezed, the scope of application is greatly improved, and the simulation authenticity is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a partial cross-sectional view of the assembly end of the electric telescopic push rod in the present invention.

[0016] In the figure: 1. bottom support cabinet, 2. top guide rail, 3. electric conveyor belt, 4. main drive motor, 5. electric telescopic push rod, 6. electric hydraulic push rod, 7. arc adjustment groove, 8. ring adjustment bracket, 9. ring lateral adjustment groove, 10. internal fixing seat, 11. transmission gear ring, 13. internal transmission gear, 14. lateral storage groove, 15. internal extrusion plate, 16. external assembly shaft cylinder, 17. lateral roller, 18. lateral mounting groove, 19. arc internal limit plate, 20. fixed splint, 21. external transition port. DETAILED DESCRIPTION

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] Figure 1 and Figure 2 A soft-pack lithium battery safety performance detection device shown in the figure comprises a bottom support cabinet 1, a top guide rail 2 fixedly mounted on the upper end of the bottom support cabinet 1, an electric conveyor belt 3 mounted inside the top guide rail 2, a main drive motor 4, an electric telescopic push rod 5 and an electrically controlled hydraulic push rod 6 fixedly mounted on both sides of the top guide rail 2, an arc-shaped adjustment groove 7 is provided inside the top guide rail 2, an annular adjustment bracket 8 is movably mounted inside the arc-shaped adjustment groove 7 and located outside the electric conveyor belt 3, an annular lateral adjustment groove 9 is provided on the outer arc surface of the annular adjustment bracket 8, four internal fixing seats 10 for fixing the electric telescopic push rod 5 are fixedly connected on the inner arc surface of the annular lateral adjustment groove 9, an inner side surface of the annular lateral adjustment groove 9 is located at the edge position and has an integrated structure transmission gear ring 11, the main drive motor 4 is fixedly mounted inside the bottom support cabinet 1 by bolts, an internal transmission gear 13 is axially fixedly connected to the top end of the rotating shaft of the main drive motor 4, and the main drive motor 4 is inserted into the annular lateral adjustment groove 9 through the internal transmission gear 13 and meshes with the transmission gear ring 11 for transmission.

[0019] Embodiment: The electric conveyor belt 3, the main drive motor 4, the electric telescopic push rod 5 and the electric-controlled hydraulic push rod 6 are powered by an external power supply, and the opening and closing and operation are controlled by an external control switch. The electric telescopic push rod 5 drives the fixed clamp plate 20 to clamp and fix the outer corner of the battery. At the same time, the electric telescopic push rod 5 at the bottom drives the battery to lift up and leave the surface of the electric conveyor belt 3, so that the main drive motor 4 can control the annular adjustment bracket 8 to rotate, thereby changing the pressure surface of the battery. The pressure surface is changed by controlling the forward and reverse rotation of the main drive motor 4, and the adjustment operation is simple and convenient. The annular adjustment bracket 8 is installed between the two electric conveyor belts 3.

[0020] Furthermore, in order to cooperate with extrusion, fixation and storage, lateral storage grooves 14 are opened on both sides of the top guide rail 2 corresponding to the positions of the electric-controlled hydraulic push rod 6, and the top end of the inner telescopic rod of the electric-controlled hydraulic push rod 6 is axially fixedly connected with an internal extrusion plate 15, and the inner side surface of the lateral storage groove 14 and the outer connecting surface of the internal extrusion plate 15 both have lateral inclined surfaces, and the center position of the outer side surface of the internal extrusion plate 15 is fixedly connected with an outwardly protruding external assembly shaft cylinder 16, and the top end of the telescopic rod of the electric-controlled hydraulic push rod 6 is fixedly connected to the outer side surface of the internal extrusion plate 15 by inserting into the external assembly shaft cylinder 16.

[0021] Furthermore, in order to reduce friction resistance, a lateral mounting groove 18 with four built-in lateral rollers 17 is opened on the inner plane of the arc-shaped adjustment groove 7. Furthermore, in order to improve the transmission stability, the inner side surface of the arc-shaped adjustment groove 7 is located at the outer opening position and has an arc-shaped internal limit plate 19 for improving the assembly stability of the annular adjustment bracket 8.

[0022] Furthermore, in order to cooperate with clamping and fixing, an internal storage groove with a built-in L-shaped structure fixing clamp 20 is opened on the inner arc surface of the annular adjustment bracket 8 corresponding to the assembly end of the electric telescopic push rod 5. Furthermore, in order to cooperate with adjustment, an external transition port 21 that cooperates with the electric telescopic push rod 5 is opened on the outer surface of the top guide rail 2.

[0023] The beneficial effects of the present invention are as follows: a soft-pack lithium battery safety performance detection device of the present invention is provided with an arc-shaped adjustment groove 7 with a built-in electric-controlled annular adjustment bracket 8 inside the top guide rail 2, and an annular lateral adjustment groove 9 with a built-in electric telescopic push rod 5 is provided on the outer arc surface of the annular adjustment bracket 8. The lithium battery is clamped and the angle is adjusted by the electric telescopic push rod 5 in cooperation with the electric-controlled annular adjustment bracket 8, and then the two sides of the battery are squeezed in cooperation with the electric-controlled hydraulic push rod 6, so that the outer side of the lithium battery is more widely squeezed. The scope of application is greatly improved, and the simulation authenticity is higher.

[0024] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A soft-pack lithium battery safety performance testing device, comprising a bottom support cabinet (1), a top guide rail (2) fixedly mounted on the upper end of the bottom support cabinet (1), an electric conveyor belt (3) mounted inside the top guide rail (2), a main drive motor (4), an electric telescopic push rod (5), and an electric-controlled hydraulic push rod (6) fixedly mounted on both sides of the top guide rail (2), wherein: The top guide rail (2) is provided with an arc-shaped adjustment groove (7), and an annular adjustment bracket (8) is movably mounted on the periphery of the electric conveyor belt (3) inside the arc-shaped adjustment groove (7). An annular lateral adjustment groove (9) is provided on the outer arc surface of the annular adjustment bracket (8). Four internal fixing seats (11) for fixing the electric telescopic push rod (5) are fixedly connected on the inner arc surface of the annular lateral adjustment groove (9). The inner side surface of the annular lateral adjustment groove (9) is provided with an integral transmission gear ring (12) at the edge position. The main drive motor (4) is fixedly installed inside the bottom support cabinet (1) by bolts. The top end of the rotating shaft of the main drive motor (4) is axially fixedly connected with an internal transmission gear (13). The main drive motor (4) is inserted into the annular lateral adjustment groove (10) through the internal transmission gear (13) to mesh with the transmission gear ring (12) for transmission.

2. The soft-pack lithium battery safety performance detection device according to claim 1, characterized in that: The top guide rail (2) is provided with lateral receiving grooves (14) on both sides corresponding to the positions of the electric-controlled hydraulic push rod (6); the top end of the inner telescopic rod of the electric-controlled hydraulic push rod (6) is axially fixedly connected with an internal extrusion plate (15); the inner side surface of the lateral receiving groove (14) and the outer connecting surface of the internal extrusion plate (15) both have lateral inclined surfaces; the center position of the outer side surface of the internal extrusion plate (15) is fixedly connected with an outwardly protruding external assembly shaft cylinder (16); the top end of the telescopic rod of the electric-controlled hydraulic push rod (6) is fixedly connected to the outer side surface of the internal extrusion plate (15) by inserting into the internal assembly shaft cylinder (16).

3. The soft-pack lithium battery safety performance detection device according to claim 1, characterized in that: A plurality of lateral mounting grooves (18) with built-in lateral rollers (17) are provided on the inner plane of the arc-shaped adjustment groove (7).

4. The soft-pack lithium battery safety performance detection device according to claim 1, characterized in that: The inner side surface of the arc-shaped adjustment groove (7) is provided with an arc-shaped internal limiting plate (19) at the outer opening position for improving the assembly stability of the annular adjustment bracket (8).

5. The soft-pack lithium battery safety performance detection device according to claim 1, characterized in that: An inner arc surface of the annular adjustment bracket (8) corresponding to the assembly end of the electric telescopic push rod (5) is provided with an internal storage groove with a built-in L-shaped structure fixing clamp (20).

6. The soft-pack lithium battery safety performance detection device according to claim 1, characterized in that: An external transition opening (21) matching with the electric telescopic push rod (5) is provided on the outer side surface of the top guide rail (2).

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