Battery cover plate air tightness testing device

Abstract

The utility model provides a kind of battery cover plate air tightness testing device, it is related to air tightness testing technical field, including test base, positioning member, fastening sealing member and press down fixing piece;Test base is opened with the test positioning groove matched with positioning member;Positioning member is detachably set in test positioning groove, and positioning member is used to position the battery cover plate of different specifications size;Fastening sealing member is set between test base and positioning member;Press down fixing piece is fixedly installed on test base, and press down fixing piece is used to fix the battery cover plate to be tested, and the air tightness of the battery cover plate to be tested is tested by test base.The utility model is detachably set by positioning member, can realize the positioning of the battery cover plate of different size specifications, and positioning plate is sealed and fixed by fastening sealing member, guarantees the good sealing property of test channel, to guarantee the accuracy of test result, with Simple structure, the characteristics that operation is convenient.

Description

field

[0001] This utility model relates to the field of airtightness testing technology, specifically to a battery cover airtightness testing device. Background Technology

[0002] Air tightness testing primarily targets the battery pack's casing, cover, and connectors to ensure that the battery pack's interior is not contaminated or intruded by external environmental impurities such as dust and moisture. This prevents safety accidents such as short circuits and explosions. Battery manufacturers and vehicle manufacturers generally require battery packs to meet an IP67 rating or higher. The typical usage of an air tightness tester involves connecting the tester to the component being tested. The air source, adjusted to the specified pressure via a pressure regulating valve within the instrument, is then used to inflate the component.

[0003] For example, patent application number 202323079221.6, entitled "Utility Model Patent for Battery Cover Airtightness Testing Device," includes a housing. A testing component is provided on the upper inner wall of the housing. A cover plate placement seat is fixedly connected to one side of the lower inner wall of the housing, and a clamping mechanism is provided on the other side of the lower inner wall. The clamping mechanism includes two support plates. The bottom ends of both support plates are fixedly connected to the lower inner wall of the housing. Two guide rods are fixedly connected to the upper part of one end of the opposite faces of the two support plates. Two clamping plates are sleeved on the outer surfaces of the two guide rods. A round rod is fixedly connected to one side of the top of each clamping plate. A movable plate is slidably connected to the top of both clamping plates. Sloping grooves for use with the two round rods are opened on both sides of the top of the movable plate. A first support seat is fixedly connected to one side of the lower inner wall of the housing. A first cylinder is fixedly connected to the top of the first support seat, and the output end of the first cylinder is fixedly connected to one end of the movable plate. This utility model, by setting a clamping mechanism, facilitates the fixing of the battery cover plate during airtightness testing, thereby improving the testing effect of the testing device. By setting a testing component, it facilitates rapid testing of the airtightness of the battery cover plate, thereby improving the efficiency of the testing device.

[0004] However, this utility model cannot perform airtightness testing on battery covers of different specifications and sizes, resulting in a narrow scope of application and certain defects.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide a battery cover airtightness testing device to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] An embodiment of this utility model provides a battery cover airtightness testing device, including a test base, a positioning component, a fastening sealing component, and a pressing fixing component;

[0009] The test base is provided with a test positioning groove that matches the positioning component;

[0010] The positioning component is detachably installed in the test positioning groove, and the positioning component is used to position battery cover plates of different sizes.

[0011] The fastening seal is disposed between the test base and the positioning member, and the fastening seal is used to fasten the positioning member;

[0012] The pressing fastener is fixedly installed on the test base. The pressing fastener is used to fix the cover plate of the battery under test, and the air tightness test of the cover plate of the battery under test is performed through the test base.

[0013] Furthermore, a test cavity is provided at the center of the test base, and a pressure port and a pressure sensor are provided on the bottom surface of the test cavity. The pressure port is used to pressurize the test cavity, and the pressure sensor is used to test the pressure change in the test cavity.

[0014] Furthermore, the positioning element includes a positioning plate, a sealing plate, and a mounting sealing gasket;

[0015] The positioning plate is slidably disposed in the test positioning groove. A through hole is provided at the center of the positioning plate and the through hole communicates with the test cavity. A sealing groove matching the battery cover is provided on the surface of the positioning plate.

[0016] The sealing plate is fixedly disposed at the end of the positioning plate, and the sealing plate is sealed to the opening of the test positioning groove.

[0017] The installation sealing gasket is disposed between the positioning plate and the inner wall of the test positioning groove.

[0018] Furthermore, the top of the sealing groove has a chamfered structure, and an elastic sealing gasket is provided inside the sealing groove.

[0019] Furthermore, the fastening seal includes a fastening shaft, a locking strip, and a locking ring;

[0020] The fastening shaft is rotatably mounted on the sealing plate;

[0021] The locking bar is fixedly installed on the fastening shaft, and the locking bar rotates synchronously with the fastening shaft;

[0022] The locking ring is fixedly installed on the test base, and the locking bar engages with the locking ring by rotation.

[0023] Furthermore, a guide strip is provided at the inlet of the locking ring, and a locking groove is provided at the end of the locking ring. When the locking strip is fully inserted, the locking strip engages with the locking groove.

[0024] Furthermore, a mounting hole is provided at the outer end of the fastening shaft, and a rotating shaft is inserted into the mounting hole.

[0025] Furthermore, the pressing fixing component includes a mounting bracket, a pressing cylinder, and a fixing plate;

[0026] The mounting bracket is fixedly installed on the test base;

[0027] The downward pressing cylinder is fixedly mounted on the mounting bracket, and the downward pressing cylinder is vertically mounted.

[0028] The fixing plate is fixedly mounted on the output shaft of the pressing cylinder, and the fixing plate is pressed down and fixed by the pressing cylinder to the cover plate of the battery to be tested.

[0029] The above-described solution of this utility model has at least the following beneficial effects:

[0030] This utility model, through the detachable positioning component, can achieve positioning of battery cover plates of different sizes and specifications. At the same time, the positioning component is sealed and fixed by a fastening sealing component, ensuring good sealing of the test channel, thereby ensuring the accuracy of the test results. It has the characteristics of simple structure and convenient operation. Attached Figure Description

[0031] Figure 1 A schematic diagram of the overall structure of a battery cover airtightness testing device provided by this utility model;

[0032] Figure 2 A schematic diagram of the positioning component structure of a battery cover airtightness testing device provided by this utility model;

[0033] Figure 3 A schematic diagram of the locking ring structure of a battery cover airtightness testing device provided by this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Test base; 2. Test positioning groove; 3. Test cavity; 4. Pressurization port; 5. Pressure sensor; 6. Positioning plate; 7. Sealing plate; 8. Mounting gasket; 9. Through hole; 10. Sealing groove; 11. Fastening shaft; 12. Locking strip; 13. Locking ring; 14. Mounting hole; 15. Guide strip; 16. Locking groove; 17. Mounting bracket; 18. Pressurizing cylinder; 19. Fixing plate. Detailed Implementation

[0036] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0037] like Figures 1 to 3 As shown, an embodiment of this utility model provides a battery cover airtightness testing device, including a test base 1, a positioning component, a fastening sealing component, and a pressing fixing component.

[0038] Specifically, the test base 1 has a test positioning groove 2 that matches the positioning component.

[0039] The positioning component is detachably installed in the test positioning groove 2, and the positioning component is used to position battery cover plates of different sizes.

[0040] The fastening seal is disposed between the test base 1 and the positioning member, and the fastening seal is used to fasten the positioning member.

[0041] The pressing fastener is fixedly installed on the test base 1. The pressing fastener is used to fix the cover plate of the battery to be tested, and the airtightness test of the cover plate of the battery to be tested is performed through the test base 1.

[0042] In this embodiment, a test cavity 3 is provided at the center of the test base 1. A pressurization port 4 and a pressure sensor 5 are provided on the bottom surface of the test cavity 3. The pressurization port 4 is used to pressurize the test cavity 3, and the pressure sensor 5 is used to test the pressure change in the test cavity 3.

[0043] In one specific embodiment, the positioning component includes a positioning plate 6, a sealing plate 7, and a mounting sealing gasket 8. The positioning plate 6 is slidably disposed within the test positioning groove 2. A through hole 9 is provided at the center of the positioning plate 6, and the through hole 9 communicates with the test cavity 3. A sealing groove 10 matching the battery cover is provided on the surface of the positioning plate 6. The sealing plate 7 is fixedly disposed at the end of the positioning plate 6, and the sealing plate 7 is sealed to the opening of the test positioning groove 2. The mounting sealing gasket 8 is disposed between the positioning plate 6 and the sealing plate 7 and the inner wall of the test positioning groove 2.

[0044] When an airtightness test is required on a battery cover, firstly, a positioning plate 6 matching the battery cover's specifications and dimensions is selected. Then, after selecting the positioning plate 6, it is inserted into the test positioning groove 2, with the positioning plate 6 and the inner wall of the test positioning groove 2 sealed together by a sealing gasket 8. Simultaneously, the end of the positioning plate 6 is connected to the side wall of the test positioning groove 2 via a sealing plate 7, achieving a sealed connection between the positioning plate 6 and the test positioning groove 2. Next, the battery cover to be tested is placed into the sealing groove 10, and a pressing fastener is used to fix the battery cover in place within the positioning groove. Finally, air is injected into the test cavity 3 through the pressure port 4. Injection into the test cavity 3 is stopped when the air pressure reaches the set value. At this point, the airtightness of the battery cover can be determined based on the change in the measured value of the pressure sensor 5.

[0045] To facilitate the placement of the battery cover to be tested into the sealing groove 10, the top of the sealing groove 10 has a chamfered structure. The chamfered top of the sealing groove 10 forms a bevel, which guides the battery cover to be tested into the groove, and an elastic sealing gasket is provided inside the sealing groove 10.

[0046] It should be noted that pressure sensor 5 can work with the controller and display screen to display the pressure value in real time. This technical solution is existing technology, and its specific circuit structure and control method will not be described in detail here.

[0047] Furthermore, the fastening seal includes a fastening shaft 11, a locking strip 12, and a locking ring 13.

[0048] Specifically, the fastening shaft 11 is rotatably mounted on the sealing plate 7.

[0049] The locking bar 12 is fixedly installed on the fastening shaft 11, and the locking bar 12 rotates synchronously with the fastening shaft 11.

[0050] The locking ring 13 is fixedly installed on the test base 1, and the locking bar 12 engages with the locking ring 13 by rotation.

[0051] In this embodiment, the outer end of the fastening shaft 11 is provided with a mounting hole 14, and a rotating shaft is inserted into the mounting hole 14. A guide strip 15 is provided at the inlet of the locking ring 13, and a locking groove 16 is provided at the end of the locking ring 13. When the locking strip 12 is fully inserted, the locking strip 12 engages with the locking groove 16.

[0052] After the positioning plate 6 is slidably installed into the test positioning groove 2, a cylindrical rod can be inserted into the mounting hole 14 and the fastening shaft 11 can be rotated. At this time, the locking strip 12 rotates together with the fastening shaft 11. The locking strip 12 enters along the guide strip 15 of the locking ring 13 and rotates to the locking groove 16. At this time, the locking ring 13 engages the locking strip 12, and the positioning plate 6 can be stably placed in the test positioning groove 2. The locking ring 13 has an elastic force on the locking strip 12 towards the test positioning groove 2, so that the sealing plate 7 abuts against the outer wall of the test positioning groove 2, improving the sealing performance between the sealing plate 7 and the test positioning groove 2.

[0053] Furthermore, the pressing fixing component includes a mounting bracket 17, a pressing cylinder 18, and a fixing plate 19.

[0054] Specifically, the mounting bracket 17 is fixedly mounted on the test base 1.

[0055] The downward pressing cylinder 18 is fixedly mounted on the mounting bracket 17, and the downward pressing cylinder 18 is vertically arranged.

[0056] The fixing plate 19 is fixedly mounted on the output shaft of the pressing cylinder 18, and the fixing plate 19 is pressed down and fixed by the pressing cylinder 18 to the cover plate of the battery to be tested.

[0057] In this embodiment, after the battery cover to be tested is placed in the sealing groove 10, the pressing cylinder 18 drives the fixing plate 19 to move down, and the fixing plate 19 applies pressure to the battery cover to be tested, so that the battery cover and the positioning plate 6 are in close contact, and the airtightness test can be performed on the battery cover to be tested.

[0058] Unlike existing technologies, this utility model has at least the following beneficial effects:

[0059] This utility model, through the detachable positioning component, can achieve positioning of battery cover plates of different sizes and specifications. At the same time, the positioning component is sealed and fixed by a fastening sealing component, ensuring good sealing of the test channel, thereby ensuring the accuracy of the test results. It has the characteristics of simple structure and convenient operation.

[0060] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A battery cover airtightness testing device, characterized in that: Includes test base, positioning components, fastening seals, and pressing and fixing components; The test base is provided with a test positioning groove that matches the positioning component; The positioning component is detachably installed in the test positioning groove, and the positioning component is used to position battery cover plates of different sizes. The fastening seal is disposed between the test base and the positioning member, and the fastening seal is used to fasten the positioning member; The pressing fastener is fixedly installed on the test base. The pressing fastener is used to fix the cover plate of the battery under test, and the air tightness test of the cover plate of the battery under test is performed through the test base.

2. The battery cover airtightness testing device according to claim 1, characterized in that: The test base has a test cavity at its center. A pressure port and a pressure sensor are provided on the bottom surface of the test cavity. The pressure port is used to pressurize the test cavity, and the pressure sensor is used to test the pressure change in the test cavity.

3. The battery cover airtightness testing device according to claim 1, characterized in that: The positioning component includes a positioning plate, a sealing plate, and a mounting sealing gasket; The positioning plate is slidably disposed in the test positioning groove. A through hole is provided at the center of the positioning plate and the through hole communicates with the test cavity. A sealing groove matching the battery cover is provided on the surface of the positioning plate. The sealing plate is fixedly disposed at the end of the positioning plate, and the sealing plate is sealed to the opening of the test positioning groove. The installation sealing gasket is disposed between the positioning plate and the inner wall of the test positioning groove.

4. The battery cover airtightness testing device according to claim 3, characterized in that: The top of the sealing groove has a chamfered structure, and an elastic sealing gasket is provided inside the sealing groove.

5. The battery cover airtightness testing device according to claim 3, characterized in that: The fastening and sealing components include a fastening shaft, a locking strip, and a locking ring; The fastening shaft is rotatably mounted on the sealing plate; The locking bar is fixedly installed on the fastening shaft, and the locking bar rotates synchronously with the fastening shaft; The locking ring is fixedly installed on the test base, and the locking bar engages with the locking ring by rotation.

6. The battery cover airtightness testing device according to claim 5, characterized in that: A guide bar is provided at the inlet of the locking ring, and a locking groove is provided at the end of the locking ring. When the locking bar is fully inserted, the locking bar engages with the locking groove.

7. The battery cover airtightness testing device according to claim 5, characterized in that: The fastening shaft has a mounting hole at its outer end, and a rotating shaft is inserted into the mounting hole.

8. The battery cover airtightness testing device according to claim 5, characterized in that: The pressing fastener includes a mounting bracket, a pressing cylinder, and a fixing plate; The mounting bracket is fixedly installed on the test base; The downward pressing cylinder is fixedly mounted on the mounting bracket, and the downward pressing cylinder is vertically mounted. The fixing plate is fixedly mounted on the output shaft of the pressing cylinder, and the fixing plate is pressed down and fixed by the pressing cylinder to the cover plate of the battery to be tested.

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