Withstand voltage test device for lithium battery shell

Abstract

The utility model discloses a withstand voltage testing device for a lithium battery shell, which comprises a supporting component, a first pressure testing component, a second pressure testing component and a third pressure testing component, the test workbench comprises a rotating motor, a material placing plate, a limiting block and a shaft seat; the rotating motors symmetrically penetrate through the middle of one side of the supporting seat, one end of each material placing plate is fixed to the front portion of the output end of the corresponding rotating motor, the limiting blocks are fixed to the upper ends of the material placing plates, the shaft seat penetrates through the middle of the other side of the supporting seat, and the middle of the other end of each material placing plate is connected with the middle of the shaft seat in a sleeved mode. The utility model discloses a lithium battery shell voltage withstanding test device, and aims to solve the problems that according to an existing lithium battery shell voltage withstanding test device, test pressure is applied through a lithium battery shell placed on a material placing table to complete voltage withstanding test, but after the lithium battery shell is subjected to the voltage withstanding test, the shell located on the material placing table after the test needs to be taken, time is consumed, and the working efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery shell pressure resistance test, in particular to a lithium battery shell pressure resistance test device. Background Art

[0002] The lithium battery shell is a key component of the lithium-ion battery system. It fixes and fully seals the internal electrochemical system. After the shell is produced and processed, a pressure test is a necessary inspection process.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing lithium battery shell pressure test device applies test pressure to the lithium battery shell placed on the material placement table to complete the pressure test. However, after the pressure test of the lithium battery shell, the shell on the material placement table needs to be removed after the test, which is time-consuming and affects the working efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure test device for a lithium battery shell, so as to solve the problem raised in the above background technology that the existing pressure test device for a lithium battery shell applies a test pressure to the lithium battery shell placed on a material placement table to complete the pressure test, but after the pressure test on the lithium battery shell, it is necessary to remove the shell on the material placement table after the test, which is time-consuming and affects the working efficiency.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is a pressure-resistant testing device for a lithium battery housing, comprising:

[0008] A supporting component, the supporting component comprising a supporting seat;

[0009] A test workbench, the test workbench comprising a rotating motor, a material placement plate, a limit block and an axle seat;

[0010] The rotating motor symmetrically passes through the middle of one side of the support seat, and the material placing plate is provided as a group, one end of which is fixed to the front of the output end of the rotating motor, the limit block is fixed to the upper end of the material placing plate, and the shaft seat passes through the middle of the other side of the support seat, and the middle of the other end of the material placing plate is sleeved with the middle of the shaft seat.

[0011] Furthermore, the inner sides of a group of the material placing plates are fitted together, and a material placing groove is provided in the middle section of the inner side of the upper end of the material placing plate.

[0012] Furthermore, the support component also includes a welding block and a positioning block;

[0013] The welding blocks are symmetrically welded to the front and rear lower parts of the support seat, and the positioning block is fixed to the lower end of the welding block.

[0014] Furthermore, it also includes a magnetic absorption component;

[0015] The magnetic absorption component includes a threaded column, a lower magnetic absorption plate and an upper magnetic absorption plate;

[0016] The threaded column is symmetrically threaded through the middle of the outer end of the limit block, and the lower magnetic plate is threaded on the inner side of the threaded column, and the upper magnetic plate is clamped on the upper end of the lower magnetic plate.

[0017] Furthermore, the lower magnetic attraction plate, the upper magnetic attraction plate and the shell are magnetically attracted to each other.

[0018] Further, it also includes a pressure test component;

[0019] The pressure test components include a connecting plate, a hydraulic cylinder and a rebound tester;

[0020] The connecting plate is fixed to the middle part of the upper end of the support seat, and the hydraulic cylinder passes through the connecting plate and extends out of the middle part of the upper end of the support seat, and the rebound tester is fixed to the lower part of the output end of the hydraulic cylinder.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] The utility model is provided with a rotating motor and a material placing plate. The material placing plates are arranged as a group to discharge materials for the shell to be tested. During the test, one group of material placing plates is at a relatively horizontal angle. After the pressure test of the lithium battery shell is carried out, the controlled rotating motor applies a rotating force to the connected material placing plates respectively, so that the one group of material placing plates tilt outwards. Relying on the gravity of the shell itself, the tested lithium battery shell can be quickly unloaded without manual intervention, thus saving time and labor and improving work efficiency.

[0023] Based on the above beneficial effects, a lower magnetic plate and an upper magnetic plate are provided. In the above-mentioned autonomous unloading of the lithium battery shell after the pressure test, the shell after unloading contacts the upper magnetic plate and the lower magnetic plate arranged at the outer end, and the upper magnetic plate and the lower magnetic plate are magnetically fixed to the shell, and the structure is limited so that when the placing plate returns to its original state, it will not move to the central position and affect the pressure test of other shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a left side view of the utility model;

[0026] Figure 2 It is a right side view of the utility model;

[0027] Figure 3 It is a schematic diagram of the material placement plate of the utility model;

[0028] Figure 4 This is a connection diagram of the support component and the pressure-resistant test component of the utility model.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 11. Support seat; 12. Welding block; 13. Positioning block;

[0031] 21. Rotating motor; 22. Material placing plate; 23. Limiting block; 24. Shaft seat;

[0032] 31. Threaded column; 32. Lower magnetic plate; 33. Upper magnetic plate;

[0033] 41. Connecting plate; 42. Hydraulic cylinder; 43. Rebound tester. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] See also Figure 1-4 As shown, this embodiment is a pressure test device for a lithium battery housing, comprising:

[0038] A supporting component, the supporting component includes a supporting seat 11;

[0039] The support seat 11 is set to be U-shaped and serves as a main mounting structure, and provides structural stability through contact with the contact surface;

[0040] The supporting component also includes a welding block 12 and a positioning block 13;

[0041] The welding block 12 is symmetrically welded to the front and rear lower parts of the support seat 11, and the positioning block 13 is fixed to the lower end of the welding block 12;

[0042] The welding block 12 is used to install the structure of the positioning block 13. By inserting and tightening the bolts in the screw holes on the positioning block 13, the positioning block 13 can be fixed, and then the support seat 11 can be structurally fixed.

[0043] The test workbench includes a rotating motor 21, a material placing plate 22, a limit block 23 and an axle seat 24;

[0044] The rotating motor 21 symmetrically passes through the middle of one side of the support seat 11, and the material placing plate 22 is provided as a group, one end of which is fixed to the front of the output end of the rotating motor 21, the limit block 23 is fixed to the upper end of the material placing plate 22, and the shaft seat 24 passes through the middle of the other side of the support seat 11, and the middle of the other end of the material placing plate 22 is sleeved with the middle of the shaft seat 24;

[0045] The rotating motor 21 is used to install the material placement plate 22 and provide the force required for angular rotation. The material placement plate 22 is used to place the lithium battery shell to be tested. The limit block 23 is used to limit the outer side of the placed shell to prevent it from falling off. The shaft seat 24 is used to rotate the material placement plate 22 and reduce the friction generated by the rotation.

[0046] The inner side of a set of material placing plates 22 is fitted, and a material placing groove is provided in the middle section of the inner side of the upper end of the material placing plates 22;

[0047] The fitting setting is convenient for placing materials on the shell, and the placing trough is used to define the structure of the shell to be tested;

[0048] It also includes pressure-resistant test parts;

[0049] The pressure test components include a connecting plate 41, a hydraulic cylinder 42 and a rebound tester 43;

[0050] The connecting plate 41 is fixed to the middle of the upper end of the support seat 11, and the hydraulic cylinder 42 passes through the connecting plate 41 and extends out of the middle of the upper end of the support seat 11, and the rebound hammer 43 is fixed to the lower part of the output end of the hydraulic cylinder 42;

[0051] The connecting plate 41 is used to install the hydraulic cylinder 42, and the hydraulic cylinder 42 is used to install the structure of the rebound tester 43, and can provide the force required for the up and down movement. The rebound tester 43 completes the pressure test on the lithium battery shell by acting on it. The specific principle is that the rebound tester 43 is usually composed of a spring-driven heavy hammer, and the heavy hammer strikes the impact rod that is in vertical contact with the surface of the object to be tested with constant kinetic energy. When the heavy hammer strikes materials such as concrete, the local material will be deformed and absorb part of the energy, while the other part of the energy is converted into the rebound kinetic energy of the heavy hammer. As the heavy hammer rebounds, this part of the kinetic energy is finally converted into potential energy. When the heavy hammer reaches the maximum rebound distance, the rebound tester 43 will record this distance, and this value can be used to evaluate the elastic modulus and stiffness of the material;

[0052] Working principle: The lithium battery shell to be tested is placed in advance in the material placement groove inside the upper end of the material placement plate 22 to limit its structure;

[0053] At this time, the controlled hydraulic cylinder 42 applies a downward force to the rebound hammer 43, and acts on the lithium battery housing to complete the pressure test of the lithium battery housing;

[0054] Next, after the pressure test of the lithium battery shell is completed, the controlled rotating motor 21 applies a rotating force to the material placing plates 22 connected to each other, so that the material placing plates 22 are tilted outwards and slide outwards under the influence of the gravity of the lithium battery shell itself, thereby completing the unloading;

[0055] In this step, the tested lithium battery shells are unloaded autonomously without manual intervention, saving time and effort and improving work efficiency.

[0056] See also Figure 3 As shown, this embodiment is based on the above embodiment 1 and further includes a magnetic absorption component;

[0057] The magnetic absorption component includes a threaded column 31, a lower magnetic absorption plate 32 and an upper magnetic absorption plate 33;

[0058] The threaded column 31 symmetrically threads through the middle of the outer end of the limit block 23, and the lower magnetic plate 32 is threaded on the inner side of the threaded column 31, and the upper magnetic plate 33 is clamped on the upper end of the lower magnetic plate 32;

[0059] The threaded column 31 fixes the structure of the lower magnetic plate 32, and the lower magnetic plate 32 fixes the structure of the upper magnetic plate 33, and the lower magnetic plate 32 and the upper magnetic plate 33 adsorb and limit the lithium battery shell after unloading;

[0060] The lower magnetic attraction plate 32, the upper magnetic attraction plate 33 and the housing are magnetically attracted to each other;

[0061] Magnetic attraction meets the needs of fixation;

[0062] Working principle: After the tested lithium battery shell is unloaded, the unloaded lithium battery shell contacts the lower magnetic suction plate 32 and the upper magnetic suction plate 33, and the lower magnetic suction plate 32 and the upper magnetic suction plate 33 are magnetically attracted to the lithium battery shell, and the structure is adsorbed and fixed;

[0063] This step can prevent the tested housing from moving to the central position when the material placement plate 22 returns to its original state, thereby affecting the withstand voltage test of other housings.

[0064] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pressure test device for a lithium battery housing, characterized in that: include: A supporting component, the supporting component comprising a supporting seat (11); A test workbench, the test workbench comprising a rotating motor (21), a material placement plate (22), a limit block (23) and an axle seat (24); The rotating motor (21) symmetrically passes through the middle of one side of the support seat (11), and the material placement plate (22) is provided as a group, one end of which is fixed to the front of the output end of the rotating motor (21), the limit block (23) is fixed to the upper end of the material placement plate (22), and the shaft seat (24) passes through the middle of the other side of the support seat (11), and the middle of the other end of the material placement plate (22) is sleeved with the middle of the shaft seat (24).

2. A pressure test device for a lithium battery housing according to claim 1, characterized in that: The inner sides of a group of material placing plates (22) are fitted together, and a material placing groove is provided in the middle section of the inner side of the upper end of the material placing plate (22).

3. A pressure test device for a lithium battery housing according to claim 1, characterized in that: The supporting component also includes a welding block (12) and a positioning block (13); The welding block (12) is symmetrically welded to the front and rear lower parts of the support seat (11), and the positioning block (13) is fixed to the lower end of the welding block (12).

4. A pressure test device for a lithium battery housing according to claim 1, characterized in that: Also includes a magnetic absorption component; The magnetic absorption component comprises a threaded column (31), a lower magnetic absorption plate (32) and an upper magnetic absorption plate (33); The threaded column (31) is symmetrically threaded through the middle of the outer end of the limit block (23), and the lower magnetic attraction plate (32) is threaded on the inner side of the threaded column (31), and the upper magnetic attraction plate (33) is clamped on the upper end of the lower magnetic attraction plate (32).

5. A pressure test device for a lithium battery housing according to claim 4, characterized in that: The lower magnetic attraction plate (32), the upper magnetic attraction plate (33) and the shell are magnetically attracted to each other.

6. A pressure test device for a lithium battery housing according to claim 1, characterized in that: It also includes components for withstand voltage testing; The pressure-resistant test component comprises a connecting plate (41), a hydraulic cylinder (42) and a rebound hammer (43); The connecting plate (41) is fixed to the middle part of the upper end of the support seat (11), and the hydraulic cylinder (42) passes through the connecting plate (41) and extends out of the middle part of the upper end of the support seat (11), and the rebound hammer (43) is fixed to the lower part of the output end of the hydraulic cylinder (42).

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