Adjustable tool for water immersion test of power storage battery pack

Abstract

The invention discloses a power storage battery pack water immersion test adjustable tool, which comprises a mounting seat, a fixing frame and a balancing weight, the mounting seat comprises a mounting plate, a bottom plate and supporting columns, the mounting plate and the bottom plate are square, the supporting columns are fixedly arranged at four corners between the mounting plate and the bottom plate, the fixing frame comprises fixing columns and a fixing plate, and the balancing weight is arranged on the fixing frame. The bottom of the fixing column is fixedly connected with the mounting plate through a threaded fastener, a fixing plate is fixedly mounted on the inner side of the fixing column, a battery pack mounting hole is formed in the fixing plate, and the two fixing frames are symmetrically and fixedly mounted on the top surface of the mounting plate; and balancing weights are fixedly connected to the middle parts of the front side, the rear side, the left side and the right side of the top surface of the bottom plate through threaded fasteners. And lifting rings at the four corners of the power storage battery pack or the system are stressed unevenly, so that the lifting position deforms, and water leakage is caused.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to an adjustable tooling for a water immersion test of a power battery pack. Background Art

[0002] With the rapid development of new energy vehicles, the dominant position of new energy vehicles is becoming increasingly prominent. As key components of new energy vehicles, the safety and reliability of power battery packs or systems have attracted much attention. Among them, the immersion test is one of the main tests to verify the sealing, safety and reliability of power battery packs or systems. If the power battery pack or system is accidentally immersed in seawater or water in different environments, there is a risk of explosion and combustion caused by short circuit caused by immersion in seawater or other water. Therefore, the waterproof performance of the power battery pack or system for electric vehicles is particularly important.

[0003] When the power battery pack or system is immersed in water, it is necessary to immerse it in a pool with a depth of 1.0m to 1.5m. Since the power battery pack or system is sealed and large in size, there is a certain resistance and buoyancy in the falling process after entering the water. Uneven force will cause the power battery pack or system to fall at an uncontrollable speed and tilt in the horizontal position. Therefore, a certain counterweight is required during the test. However, due to the particularity of the battery pack shell, the counterweight directly pressing on the shell may cause the shell to deform.

[0004] Due to the heavy weight of the power battery pack or system, it needs to be hoisted during the test. If the installation screw holes of the four corners of the power battery pack or system are directly hoisted, the lifting rope will deviate during the lifting and lowering process, and the four corner lifting rings of the power battery pack or system will be unevenly stressed, causing the lifting position to deform and cause the risk of water leakage. In addition, due to the diversity of sizes of power battery packs or systems, different sizes of tooling and reasonable counterweights need to be processed according to power battery packs or systems of different sizes and weights, which increases both costs and workload.

[0005] Therefore, it is necessary to develop and design a battery immersion test tooling that not only meets the requirements of the power battery pack or system immersion test, but also can adjust the counterweight, installation size and meet the lifting requirements. Summary of the invention

[0006] The technical problem to be solved by the present application is to provide an adjustable tooling for the immersion test of a power battery pack, so as to solve the technical problem that the lifting rope of the power battery pack is easily offset during the lifting process of the power battery pack for the immersion test, resulting in uneven force on the four corner lifting rings of the power battery pack or the system, causing deformation of the lifting position and causing water leakage.

[0007] In order to solve the above technical problems, the technical solution of the present application is: an adjustable tooling for immersion test of a power battery pack, comprising a mounting seat, a fixing frame and a counterweight, the mounting seat comprising a mounting plate, a bottom plate and a support column, the mounting plate and the bottom plate are both square, the support columns are fixedly arranged at the four corners between the mounting plate and the bottom plate, the fixing frame comprises a fixing column and a support plate, two of the fixing frames are a group symmetrically installed on both sides of the mounting plate, the bottom of the fixing column is fixedly connected to the mounting plate, the support plate is fixedly installed on the inner side of the fixing column, and a battery pack mounting hole is arranged on the support plate; the counterweight is fixedly connected to the front and rear sides and the middle of the left and right sides on the top surface of the bottom plate by threaded fasteners.

[0008] Preferably, two or more sets of the fixing brackets are provided on both the front and rear sides and the left and right sides of the top surface of the mounting plate, and the bottom of the fixing column is fixedly connected to the mounting plate by threaded fasteners.

[0009] Preferably, the fixing column includes a fixing plate, a column and a long bolt, the bottom of the column is fixedly connected to the fixing plate, the fixing plate is connected to the mounting plate by a threaded fastener, the column body is provided with a vertical long hole, one end of the long bolt is threadedly connected to the support plate and the other end passes through the long hole and is screwed with a nut.

[0010] Preferably, a lifting ring is threadedly connected above the fixing column.

[0011] Preferably, the counterweight block is square in shape, and U-shaped mounting holes are provided on both sides of the counterweight block. Studs are provided in the U-shaped mounting holes, and one end of the studs is connected to the base plate and the other end is screwed onto a nut.

[0012] Preferably, the mounting plate is evenly distributed with threaded mounting holes, the center distance between any two adjacent threaded mounting holes is 5 to 10 cm, and threaded fasteners are provided in the mounting holes to connect with the fixing columns.

[0013] Preferably, two or more rows of battery pack mounting holes are provided on the support plate.

[0014] The technical effects achieved by adopting the above technical solution are:

[0015] The power battery pack immersion test is carried out on the power battery pack by using the adjustable tooling for the power battery pack immersion test of the present application, and weight balance is achieved by matching the appropriate counterweight block; during the test, the power battery pack or system is hoisted through a fixed column to prevent deformation and damage to the power battery pack or system. The tooling not only meets the requirements of the power battery pack or system immersion test, but also can match power battery packs or systems of different sizes, and can also achieve functions such as reasonable weight balance, simple hoisting, and convenient connection. It avoids problems such as direct contact between the counterweight block and the power battery pack or system housing, deformation caused by direct hoisting, and the need to process multiple sets of tooling for different sizes.

[0016] Since two or more sets of the fixing frames are provided on both the front and rear sides and the left and right sides of the top surface of the mounting plate, and each set of the fixing frames is symmetrically arranged on the left and right sides, multiple supporting points can ensure that the power battery pack is firmly fixed.

[0017] Since the fixing frame includes a fixing plate, a column and a long bolt, the bottom of the column is fixedly connected to the fixing plate, the fixing plate is connected to the mounting plate by a threaded fastener, the column body is provided with a vertical long hole, one end of the long bolt is threadedly connected to the support plate and the other end passes through the long hole and is screwed with a nut, the installation height of the fixing plate can be adjusted by disassembling and assembling the long bolt, thereby facilitating the adjustment of the height of each supporting point of the power battery pack.

[0018] Since the upper part of the fixing column is threadedly connected with a lifting ring, the lifting work is performed by installing the lifting ring.

[0019] Since the mounting plate is evenly distributed with threaded mounting holes, the center distance between any two adjacent threaded mounting holes is 5 to 10 cm, and threaded fasteners are provided in the mounting holes to connect the fixing columns, the installation position of the fixing bracket can be adjusted to match power battery packs or systems of different sizes.

[0020] Since the support plate is provided with two or more rows of battery pack mounting holes, it is convenient to perform corresponding connection with battery packs of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the adjustable tooling structure for the water immersion test of the power battery pack of this application;

[0023] Figure 2 It is a schematic diagram of the structure of the fixing frame of this application;

[0024] Figure 3 It is a schematic diagram of the support plate structure of this application;

[0025] Figure 4 It is a schematic diagram of the structure of the counterweight block of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the adjustable tooling for installing the battery pack in the water immersion test of the power battery pack of the present application;

[0027] In the figure, 1. mounting base; 11. mounting plate; 12. bottom plate; 13. support column; 2. fixing frame; 21. fixing column; 22. support plate; 31. fixing plate; 32. column; 33. long bolt; 4. battery pack mounting hole; 5. counterweight; 6. lifting ring; 7. U-shaped mounting hole; 8. long hole; 9. battery pack. DETAILED DESCRIPTION

[0028] like Figure 1 and Figures 3 to 5 As shown, an adjustable tooling for immersion test of power battery pack includes a mounting seat 1, a fixing frame 2 and a counterweight 5. The mounting seat 1 includes a mounting plate 11, a bottom plate 12 and a support column 13. The mounting plate 11 and the bottom plate 12 are both square. Support columns 13 are fixedly arranged at the four corners between the mounting plate 11 and the bottom plate 12. The fixing frame 2 includes a fixing column 21 and a support plate 22. The bottom of the fixing column 21 is fixedly connected to the mounting plate 11 by threaded fasteners. The support plate 22 is fixedly installed on the inner side of the fixing column 21. The support plate 22 is provided with a battery pack mounting hole 4. Two fixing frames 2 are fixedly installed on the top surface of the mounting plate 11 symmetrically. Preferably, the support plate 22 is provided with more than two rows of battery pack mounting holes 4, which is convenient for corresponding connection with battery packs of different specifications. The mounting plate 11 is evenly distributed with threaded mounting holes. The center distance between any two adjacent threaded mounting holes is 5 to 10 cm. The installation position of the fixing frame 2 is adjusted to match power battery packs or systems of different sizes.

[0029] like Figures 1-2 As shown, the fixing column 21 includes a fixing plate 31, a column 32 and a long bolt 33. The column 32 is a square column. The bottom of the column 32 is fixedly connected to the fixing plate 31. The fixing plate 31 is connected to the mounting plate 11 by threaded fasteners. The body of the column 32 is provided with a vertical long hole 8 that passes through the front and back. One end of the long bolt 33 is threadedly connected to the support plate 22 and the other end passes through the long hole 8 and is screwed with a nut. The installation height of the fixing plate 31 can be adjusted by disassembling and assembling the long bolt 33, thereby facilitating the adjustment of the height of each supporting point of the power battery pack.

[0030] like Figures 1 to 5As shown, in order to ensure that the power battery pack is firmly fixed, two or more sets of fixing frames 2 are provided on the front and rear sides and the left and right sides of the top of the mounting plate 11, and each set of fixing frames 2 is symmetrically arranged on the left and right sides. The top of the fixing column 21 is threadedly connected to the lifting ring 6, and the lifting work is performed by installing the lifting ring 6. The top surface of the bottom plate 12 is fixedly connected to the front and rear sides and the middle of the left and right sides by threaded fasteners with a counterweight 5. The counterweight 5 is square, and U-shaped mounting holes 7 are provided on the left and right sides of the counterweight 5. Studs are installed in the U-shaped mounting holes 7 to connect the bottom plate 12. According to the quality of the tooling during the test, two or more counterweights 5 can be provided on each side of the bottom plate to keep the battery pack to be tested balanced.

[0031] The power battery pack immersion test is carried out on the power battery pack using the adjustable tooling for the power battery pack immersion test of the present application. The battery pack 9 is fixedly connected to each support plate 22 by threaded fasteners, and weight balance is achieved by matching appropriate counterweights 5. During the test, the battery pack is hoisted by the fixed column 21 to prevent the power battery pack or the system from being deformed and damaged.

[0032] The tooling not only meets the requirements of the immersion test of the power battery pack or system, but also can match power battery packs or systems of different sizes, and can also achieve the functions of reasonable weight balance, simple hoisting, and convenient connection. It avoids the deformation caused by the counterweight block 5 directly contacting the power battery pack or system shell and directly hoisting. The tooling can efficiently disassemble and assemble the power battery pack or system, and through reasonable weight balance, it protects the battery pack or system shell from deformation, and is compatible with the installation of battery packs or systems of different sizes, reducing the tooling processing cost.

[0033] It is obvious that the above description and record are only examples and are not intended to limit the disclosure, application or use of the present invention. Although the embodiments have been described in the embodiments and described in the drawings, the present invention is not limited to the specific examples of the teachings of the present invention as the best mode currently considered by the drawings and described in the embodiments, and the scope of the present invention will include any embodiment falling within the previous description and the attached claims.

Claims

1. An adjustable tooling for a power battery pack immersion test, characterized in that: include: A mounting seat, the mounting seat comprising a mounting plate, a bottom plate and support columns, the mounting plate and the bottom plate are both square, and the support columns are fixedly provided at four corners between the mounting plate and the bottom plate; A fixing frame, the fixing frame includes a fixing column and a support plate, two fixing frames are symmetrically installed on both sides of the mounting plate as a group, the bottom of the fixing column is fixedly connected to the mounting plate, the support plate is fixedly installed on the inner side of the fixing column, and the support plate is provided with a battery pack mounting hole; And a counterweight block, the counterweight block is fixedly connected to the top surface of the bottom plate at the front and rear sides and the middle of the left and right sides through threaded fasteners.

2. The adjustable tooling for water immersion test of power battery pack according to claim 1, characterized in that: Two or more sets of fixing frames are arranged on both the front and rear sides and the left and right sides of the top face of the mounting plate, and the bottom of the fixing column is fixedly connected to the mounting plate by threaded fasteners.

3. The adjustable tooling for water immersion test of power battery pack according to claim 2, characterized in that: The fixing column includes a fixing plate, a column and a long bolt. The column is a square column. The bottom of the column is fixedly connected to the fixing plate. The fixing plate is connected to the mounting plate by a threaded fastener. The column body is provided with a vertical long hole that passes through the front and back. One end of the long bolt is threadedly connected to the support plate and the other end passes through the long hole and is screwed with a nut.

4. The adjustable tooling for water immersion test of power battery pack according to claim 1, characterized in that: A lifting ring is connected above the fixing column.

5. The adjustable tooling for water immersion test of power battery pack according to claim 1, characterized in that: The counterweight block is square in shape, and U-shaped mounting holes are provided on both sides of the counterweight block. Studs are provided in the U-shaped mounting holes, and one end of the studs is connected to the bottom plate and the other end is screwed onto a nut.

6. The adjustable tooling for water immersion test of power battery pack according to claim 1, characterized in that: The mounting plate is evenly distributed with threaded mounting holes, and the center distance between any two adjacent threaded mounting holes is 5 to 10 centimeters. Threaded fasteners are arranged in the mounting holes to connect the fixing columns.

7. The adjustable tooling for water immersion test of power battery pack according to claim 1, characterized in that: The support plate is provided with two or more rows of battery pack mounting holes.

8. The adjustable tooling for water immersion test of power battery pack according to claim 1, characterized in that: Two or more counterweight blocks are arranged on each side of the bottom plate.

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