Sealing detection device for battery pack of electric vehicle

By designing a sealing detection device for electric vehicle battery packs, using structures such as a workbench, supporting vertical blocks, electric push rods, clamping blocks and rotating motors, combined with hydraulic cylinders and flaw detectors, automatic all-round detection of battery packs can be achieved, solving the problems of low efficiency and low precision of traditional detection methods, and improving the efficiency and accuracy of sealing detection.

CN223389346UActive Publication Date: 2025-09-26XINSUWANGHUA MEASUREMENT & CONTROL TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202422896219.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-09-26
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Traditional battery pack sealing detection methods are inefficient, inaccurate, and easily affected by subjective factors, making it difficult to fully evaluate sealing performance.

Method used

A sealing detection device for electric vehicle battery packs was designed. The device adopts a workbench, supporting vertical blocks, electric push rods, clamping blocks and rotating motors, combined with hydraulic cylinders and flaw detectors to realize automated detection. The device can perform all-round flaw detection by clamping, rotating and moving the battery pack.

Benefits of technology

The efficiency and accuracy of battery pack sealing detection are improved, the sealing performance can be comprehensively evaluated, and the subjective influence of manual detection is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric automobile battery pack sealing detection device comprising a bottom plate, vertical blocks are fixedly arranged on the two sides of the top of the bottom plate respectively, a horizontal moving mechanism is installed on the top of the bottom plate, an installation plate is fixedly arranged on the top of the horizontal moving mechanism, a workbench is fixedly installed on the top of the installation plate, and the workbench is provided with a clamping groove. A plurality of flaw detectors are installed in the middle of the top of the workbench in an embedded mode, a clamping block is fixedly arranged at one end of an electric push rod, the other end of the electric push rod is fixedly connected with a rotating motor, the rotating motor is fixedly arranged on a mounting block, and the side wall of the mounting block is fixedly connected with a supporting vertical block through a supporting rod; the battery pack sealing detection device solves the problems that a traditional battery pack sealing detection method mainly comprises manual detection, but the manual detection is low in efficiency and precision, is easily influenced by subjective factors, and is difficult to comprehensively evaluate the sealing performance of the battery pack.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery pack sealing detection, in particular to a battery pack sealing detection device for an electric vehicle. Background Art

[0002] With the rapid development of the electric vehicle industry, battery packs, as core components of electric vehicles, have attracted widespread attention for their safety, reliability, and service life. Sealing performance is a crucial step in the battery pack manufacturing process.

[0003] Traditional battery pack sealing detection methods mainly include manual detection, but manual detection is inefficient, low-precision, and easily affected by subjective factors, making it difficult to comprehensively evaluate the battery pack sealing performance. Therefore, the utility model proposes an electric vehicle battery pack sealing detection device to solve the above problems. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, the purpose of the present utility model is to provide an electric vehicle battery pack sealing detection device.

[0005] To achieve the above-mentioned objectives, the present invention provides a sealing detection device for an electric vehicle battery pack, comprising a base plate, vertical blocks are fixedly provided on both sides of the top of the base plate, a horizontal moving mechanism is installed on the top of the base plate, a mounting plate is fixedly provided on the top of the horizontal moving mechanism, a workbench is fixedly provided on the top of the mounting plate, a plurality of flaw detectors are embedded and installed in the middle position of the top of the workbench, supporting vertical blocks are fixedly provided on both sides of the top of the workbench, fixed blocks are respectively passed through and fixedly provided on both sides of the supporting vertical blocks, an electric push rod is fixedly provided on the side wall of the fixed block, a clamping block is fixedly provided on one end of the electric push rod, and a rotating motor is fixedly connected to the other end of the electric push rod, and the rotating motor is fixedly provided on the mounting block, and the side wall of the mounting block is fixedly connected to the supporting vertical block by a support rod, and a battery pack is clamped between the two clamping blocks.

[0006] Furthermore, the horizontal movement mechanism includes two slide rails, and the slide rails are installed in mounting grooves, which are opened on the top of the base plate.

[0007] Furthermore, an inverted U-shaped block is slidably mounted on each of the two slide rails, a connecting plate is mounted on the top of the inverted U-shaped block, and the mounting plate is fixedly connected to the top of the connecting plate.

[0008] Furthermore, a plurality of first positioning holes are opened on the top of the slide rail, and the slide rail is fixed in the installation groove by a first positioning screw. A plurality of second positioning holes are opened on the top of the connecting plate, and the connecting plate is installed and fixed to the inverted U-shaped block by a second positioning screw.

[0009] Furthermore, a hydraulic cylinder is fixedly provided through the outer side of one of the vertical blocks, and the telescopic end of the hydraulic cylinder is fixedly connected to a square block through a connecting block, and the square block is fixedly connected to the mounting plate.

[0010] Furthermore, vertical rods are fixedly provided on the front and rear sides of the bottom plate, and a plurality of flaw detectors are installed on the side walls of each vertical rod.

[0011] Furthermore, a positioning groove is provided on the inner side of the vertical block, a through hole is provided on the inner side of the positioning groove, the hydraulic cylinder is fixedly inserted into the through hole, a sleeve is fixedly sleeved on the fixed end of the through hole, and the sleeve is fixedly installed in the positioning groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Through the set workbench, supporting vertical block, electric push rod, clamping block and rotating motor, the electric push rod is started to extend, and the electric push rod drives the two clamping blocks to approach each other. The two clamping blocks clamp the battery pack to be tested and fix it. The flaw detector is embedded and installed on the top of the workbench, and the rotating motor and flaw detector are started to work. The rotating motor drives the electric push rod to rotate slowly, thereby driving the battery pack between the two clamping blocks to rotate. During the rotation process, the flaw detector can perform flaw detection on the surface of the battery pack, which can replace manual testing of the sealing of lithium battery packs, improve the detection efficiency, and solve the problem that the traditional battery pack sealing detection method mainly relies on manual testing, but manual testing is inefficient and low in accuracy, and is easily affected by subjective factors, making it difficult to fully evaluate the sealing performance of the battery pack;

[0014] 2. By setting up the inverted U-shaped block, vertical rod and hydraulic cylinder, the hydraulic cylinder is activated to extend and retract, and the hydraulic cylinder drives the mounting plate to move left and right, which in turn drives the clamped battery pack to move left and right. The flaw detector installed on the inner wall of each vertical rod can also perform flaw detection on the battery pack, further improving the accuracy of the battery pack sealing test;

[0015] 3. Through the first positioning hole and the second positioning hole and other structures, the slide rail is fixed in the installation groove by the first positioning screw, and the slide rail is easy to install and disassemble. The connecting plate is installed and fixed to the inverted U-shaped block by the second positioning screw, and the connecting plate and the inverted U-shaped block are easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the solutions in the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a stereogram provided by the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the present invention when no vertical rod is provided;

[0019] Figure 3 This is a three-dimensional diagram of the supporting vertical block provided by the utility model;

[0020] Figure 4 This is a three-dimensional diagram of the mounting plate provided by the utility model;

[0021] Figure 5 This is a three-dimensional diagram of the base plate provided by the utility model;

[0022] Figure 6 This is a three-dimensional diagram of the workbench provided by the utility model;

[0023] Figure 7 This is an enlarged schematic diagram of part A provided by the utility model;

[0024] Description of reference numerals:

[0025] 1. Mounting block; 2. Rotating motor; 3. Electric push rod; 4. Support rod; 5. Fixed block; 6. Clamping block; 7. Support vertical block; 8. Flaw detector; 9. Workbench; 10. Base plate; 11. Vertical block; 12. Slide rail; 13. First positioning hole; 14. Positioning slot; 15. Through hole; 16. Hydraulic cylinder; 17. Casing; 18. Inverted U-shaped block; 19. Connecting plate; 20. Mounting plate; 21. Second positioning hole; 22. Square block; 23. Connecting block; 24. Vertical rod; 25. Mounting slot. DETAILED DESCRIPTION

[0026] The following detailed description of the preferred embodiments of the present invention is provided in conjunction with the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art, thereby more clearly defining the scope of protection of the present invention. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are also within the scope of protection of the present invention.

[0027] The terms "including" and "having," as well as any variations thereof, in the specification and claims of this utility model and the accompanying drawings are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the specification and claims of this utility model and the accompanying drawings are used to distinguish between different items, not to describe a specific order.

[0028] See also Figure 1-7 , a sealing detection device for an electric vehicle battery pack comprises a bottom plate 10, vertical blocks 11 are fixedly provided on both sides of the top of the bottom plate 10, a horizontal moving mechanism is installed on the top of the bottom plate 10, a mounting plate 20 is fixedly provided on the top of the horizontal moving mechanism, a workbench 9 is fixedly installed on the top of the mounting plate 20, and a plurality of flaw detectors 8 are embedded and installed in the middle position of the top of the workbench 9, support vertical blocks 7 are fixedly provided on both sides of the top of the workbench 9, fixed blocks 5 are fixedly provided on both sides of the support vertical block 7, an electric push rod 3 is fixedly provided on the side wall of the fixed block 5, a clamping block 6 is fixedly provided on one end of the electric push rod 3, and a rotating motor 2 is fixedly connected to the other end of the electric push rod 3, which is fixedly provided on the mounting block 1, and the side wall of the mounting block 1 is fixedly connected to the support vertical block 7 through a support rod 4, and an electric push rod 3 is clamped between the two clamping blocks 6. Battery pack, through the set workbench 9, supporting vertical block 7, electric push rod 3, clamping block 6 and rotating motor 2 and other structures, start the electric push rod 3 to extend, the electric push rod 3 drives the two clamping blocks 6 to approach each other, the two clamping blocks 6 clamp the battery pack to be tested, and the flaw detector 8 is embedded and installed on the top of the workbench 9, start the rotating motor 2 and the flaw detector 8 to work, the rotating motor 2 drives the electric push rod 3 to rotate slowly, and then drives the battery pack between the two clamping blocks 6 to rotate. During the rotation process, the flaw detector 8 can perform flaw detection on the surface of the battery pack, which can replace manual testing of the sealing of the lithium battery pack, improve the detection efficiency, and solve the problem that the traditional battery pack sealing detection method mainly includes manual testing, but the manual testing is inefficient and not accurate, and is easily affected by subjective factors, making it difficult to fully evaluate the sealing performance of the battery pack;

[0029] As an improvement of the above technical solution, the horizontal movement mechanism includes a slide rail 12, which is provided with two slide rails 12. The slide rails 12 are installed in the mounting groove 25, and the mounting groove 25 is opened at the top of the base plate 10. The two slide rails 12 are respectively provided with an inverted U-shaped block 18 for sliding. The top of the inverted U-shaped block 18 is installed with a connecting plate 19, and the top of the connecting plate 19 is fixedly connected to the mounting plate 20. A hydraulic cylinder 16 is fixedly provided on the outer side of one of the vertical blocks 11. The telescopic end of the hydraulic cylinder 16 is fixedly connected to a square block 22 through a connecting block 23. The square block 22 is fixedly connected to the mounting plate 20. Vertical rods 24 are fixedly provided on the front and rear sides of the base plate 10, and each vertical rod 24 is fixedly provided with a vertical rod 24. Several flaw detectors 8 are installed on the side walls. A positioning groove 14 is provided on the inner side of the vertical block 11. A through-hole 15 is provided on the inner side of the positioning groove 14. A hydraulic cylinder 16 is fixedly inserted into the through-hole 15. A sleeve 17 is fixedly sleeved on the fixed end of the through-hole 15. The sleeve 17 is fixedly installed in the positioning groove 14. By activating the hydraulic cylinder 16 to extend and retract back and forth through the inverted U-shaped block 18, vertical rod 24, and hydraulic cylinder 16, the hydraulic cylinder 16 drives the mounting plate 20 to move left and right, thereby driving the clamped battery pack to move left and right. The flaw detector 8 installed on the inner wall of each vertical rod 24 can also perform flaw detection on the battery pack, further improving the accuracy of the battery pack sealing detection.

[0030] As an improvement of the above technical solution, a plurality of first positioning holes 13 are provided at the top of the slide rail 12, and the slide rail 12 is fixed in the mounting groove 25 by a first positioning screw. A plurality of second positioning holes 21 are provided at the top of the connecting plate 19, and the connecting plate 19 is installed and fixed to the inverted U-shaped block 18 by the second positioning screw. Through the structures such as the first positioning holes 13 and the second positioning holes 21, the slide rail 12 is fixed in the mounting groove 25 by the first positioning screw, and the slide rail 12 is easy to install and disassemble. The connecting plate 19 is installed and fixed to the inverted U-shaped block 18 by the second positioning screw, and the connecting plate 19 and the inverted U-shaped block 18 are easy to install and disassemble.

[0031] The working principle and usage of this utility model:

[0032] When in use, the electric push rod 3 is started to extend, and the electric push rod 3 drives the two clamping blocks 6 to approach each other. The two clamping blocks 6 clamp the battery pack to be tested and fix it. The flaw detector 8 is embedded and installed on the top of the workbench 9, and the rotating motor 2 and the flaw detector 8 are started to work. The rotating motor 2 drives the electric push rod 3 to rotate slowly, and then drives the battery pack between the two clamping blocks 6 to rotate. During the rotation process, the flaw detector 8 can perform flaw detection on the surface of the battery pack, which can replace manual testing of the sealing of the lithium battery pack, thereby improving the detection efficiency. The hydraulic cylinder 16 is started to extend and retract back and forth. The hydraulic cylinder 16 drives the mounting plate 20 to move left and right, which can drive the clamped battery pack to move left and right. The flaw detector 8 installed on the inner wall of each vertical rod 24 can also perform flaw detection on the battery pack, further improving the accuracy of the battery pack sealing detection. The slide rail 12 is fixed in the mounting groove 25 by the first positioning screw. The slide rail 12 is easy to install and disassemble. The connecting plate 19 is installed and fixed to the inverted U-shaped block 18 by the second positioning screw. The connecting plate 19 and the inverted U-shaped block 18 are easy to install and disassemble.

[0033] The above description is only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sealing detection device for an electric vehicle battery pack, characterized in that: The invention comprises a bottom plate (10), vertical blocks (11) are fixedly provided on both sides of the top of the bottom plate (10), a horizontal moving mechanism is installed on the top of the bottom plate (10), a mounting plate (20) is fixedly provided on the top of the horizontal moving mechanism, a workbench (9) is fixedly installed on the top of the mounting plate (20), a plurality of flaw detectors (8) are embedded and installed in the middle position of the top of the workbench (9), support vertical blocks (7) are fixedly provided on both sides of the top of the workbench (9), and the support vertical blocks ( A fixing block (5) is fixedly provided on both sides of the mounting block (7), an electric push rod (3) is fixedly provided on the side wall of the fixing block (5), a clamping block (6) is fixedly provided on one end of the electric push rod (3), and a rotating motor (2) is fixedly connected to the other end of the electric push rod (3), and the rotating motor (2) is fixedly provided on the mounting block (1), and the side wall of the mounting block (1) is fixedly connected to the supporting vertical block (7) through a support rod (4), and a battery pack is clamped between the two clamping blocks (6).

2. The electric vehicle battery pack sealing detection device according to claim 1, characterized in that: The horizontal movement mechanism includes a slide rail (12), two of which are provided. The slide rail (12) is installed in a mounting groove (25), and the mounting groove (25) is opened on the top of the base plate (10).

3. The electric vehicle battery pack sealing detection device according to claim 2, characterized in that: An inverted U-shaped block (18) is slidably mounted on each of the two slide rails (12). A connecting plate (19) is mounted on the top of each of the inverted U-shaped blocks (18). The top of each of the connecting plates (19) is fixedly connected to the mounting plate (20).

4. The electric vehicle battery pack sealing detection device according to claim 3, characterized in that: The top of the slide rail (12) is provided with a plurality of first positioning holes (13), and the slide rail (12) is fixed in the mounting groove (25) by means of first positioning screws. The top of the connecting plate (19) is provided with a plurality of second positioning holes (21), and the connecting plate (19) is installed and fixed to the inverted U-shaped block (18) by means of second positioning screws.

5. The electric vehicle battery pack sealing detection device according to claim 4, characterized in that: A hydraulic cylinder (16) is fixedly provided on the outside of one of the vertical blocks (11), and the telescopic end of the hydraulic cylinder (16) is fixedly connected to a square block (22) through a connecting block (23), and the square block (22) is fixedly connected to the mounting plate (20).

6. The electric vehicle battery pack sealing detection device according to claim 5, characterized in that: Vertical rods (24) are fixedly provided on the front and rear sides of the bottom plate (10), and a plurality of flaw detectors (8) are installed on the side walls of each vertical rod (24).

7. The electric vehicle battery pack sealing detection device according to claim 6, characterized in that: A positioning groove (14) is provided on the inner side of the vertical block (11), a through hole (15) is provided on the inner side of the positioning groove (14), the hydraulic cylinder (16) is fixedly inserted into the through hole (15), a sleeve (17) is fixedly sleeved on the fixed end of the through hole (15), and the sleeve (17) is fixedly installed in the positioning groove (14).