Tool for detecting battery leakage

Abstract

The tool comprises a box body frame, a bottom plate, two restraining plates and a plurality of restraining partition plates, the bottom plate is arranged at the bottom of the box body frame, a plurality of detection pieces are arranged on the bottom plate at intervals, the two restraining plates are arranged at one end of the interior of the box body frame respectively, and the two restraining partition plates are arranged at the other end of the interior of the box body frame respectively. The multiple restraining partition plates are arranged between the two restraining plates, at least two first containing grooves are formed in the sides, facing the restraining partition plates, of the restraining plates at intervals, and at least two second containing grooves are formed in the two sides of each restraining partition plate at intervals. And the two restraining plates and the plurality of restraining partition plates can slide in the box body frame. According to the utility model, liquid leakage can be judged by observing the color of the test paper with naked eyes, liquid leakage detection can be simultaneously carried out on a plurality of batteries, the whole structure is simple, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a tool for detecting battery leakage. Background Art

[0002] Leakage is the most common complaint among customers about batteries and modules. When welding the lithium-ion battery shell and cap, loose welding, unsealed welding, leaking welding, cold welding, cracks and fissures in the welds, etc. may cause battery leakage, affecting the normal use of the module, and in serious cases, there may be certain safety hazards. Currently, the commonly used methods for detecting battery leakage are mainly visual inspection, CCD inspection, helium inspection and other methods. It is difficult to avoid the problem of eye fatigue or neglect in visual inspection, and it is difficult to distinguish the sealing of the injection hole by the naked eye alone; and the use of CCD inspection and helium inspection has greatly increased the production cost to a certain extent, and CCD inspection may not be able to detect all capillary leakage batteries 100%. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems and provide a tool for detecting battery leakage.

[0004] The technical solution of the utility model: a tool for detecting battery leakage, comprising a box frame, a bottom plate, two restraint plates and a plurality of restraint partitions, the bottom plate is arranged at the bottom of the box frame, a plurality of detection parts are arranged on the bottom plate at intervals, two restraint plates are respectively arranged at one end inside the box frame, a plurality of restraint partitions are arranged between the two restraint plates, at least two first placement grooves are arranged on one side of the restraint plate facing the restraint partition, at least two second placement grooves are arranged on both sides of the restraint partition, and the two restraint plates and the plurality of restraint partitions can slide in the box frame.

[0005] Preferably, the box frame includes two fixing plates, two positioning strips and two bottom bars, the positioning strips and the bottom bar are arranged between the two fixing plates; first protrusions are arranged on both sides of the restraining plate, and second protrusions are arranged on both sides of the restraining partition.

[0006] Preferably, the box frame further comprises three limit rods, which are detachably connected to the two fixing plates respectively; a first U-shaped groove is provided in the middle of the restraining plate, and a second U-shaped groove is provided in the middle of the restraining partition.

[0007] Preferably, a plurality of supporting feet are provided at the bottom of the box frame.

[0008] Preferably, a buffer device is further included, which includes a push plate, a buffer plate and a plurality of springs. Both the push plate and the buffer plate can slide in the box frame, and a plurality of springs are provided between the push plate and the buffer plate.

[0009] Preferably, a cushion block is provided on one side of the push plate.

[0010] The beneficial effects of the utility model are as follows: in the utility model, one of the restraint plates is moved by an external driving device or manually pushed, the restraint plate is subjected to force to push the battery, and the battery pushes the restraint partition, forming a chain effect, and several batteries are clamped, so that the batteries are subjected to a certain extrusion pressure. If the welding of the injection hole is abnormal, electrolyte will flow out, and a color reaction will appear after the electrolyte contacts the PH test paper. The color of the test paper can be observed by the naked eye to determine whether there is leakage, and leakage detection can be performed on multiple batteries at the same time. The overall structure is simple, the operation is easy, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a stereoscopic diagram of the overall structure of the preferred embodiment of the utility model;

[0012] Figure 2 It is a top view of the overall structure of the preferred embodiment of the utility model;

[0013] Figure 3 It is a three-dimensional diagram of the bottom plate in the preferred embodiment of the utility model;

[0014] Figure 4 It is a three-dimensional diagram of a restraint plate in a preferred embodiment of the utility model;

[0015] Figure 5 It is a three-dimensional diagram of a restraint partition in a preferred embodiment of the utility model.

[0016] Figure markings: box frame 10, fixed plate 101, positioning bar 102, bottom rod 103, limit rod 104, bottom plate 2, detection piece 201, restraint plate 3, first placement groove 301, first protrusion 302, first U-shaped groove 303, restraint partition 4, second placement groove 401, second protrusion 402, second U-shaped groove 403, push plate 5, pad 501, buffer plate 6, spring 7. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Reference Figures 1 to 5A tool for detecting battery leakage, comprising a box frame 10, a bottom plate 2, two restraint plates 3 and a plurality of restraint partitions 4, wherein the bottom plate 2 is arranged at the bottom of the box frame 10, and a plurality of detection members 201 are arranged on the bottom plate 2 at intervals, and two restraint plates 3 are respectively arranged at one end inside the box frame 10, and a plurality of restraint partitions 4 are arranged between the two restraint plates 3, and at least two first placement grooves 301 are arranged at intervals on one side of the restraint plate 3 facing the restraint partition, and at least two second placement grooves 401 are arranged at intervals on both sides of the restraint partition 4, and the two restraint plates 3 and the plurality of restraint partitions 4 can slide in the box frame 10. In the utility model, during detection, several batteries after injection and sealing are inverted between the first placement groove 301 and the second placement groove 401 or between the two second placement grooves 401, and then the batteries are inverted between the restraint plate 3 and the restraint partition 4 or between the two restraint partitions 4. After the batteries are placed, there will be a gap between the restraint plate 3 and the restraint partition 4 or between the two restraint partitions 4. One of the restraint plates 3 is moved by an external driving device or manually pushed. The restraint plate 3 is forced to push the battery, and the battery pushes the restraint partition 4, forming a chain effect. Several batteries are clamped, so that the batteries are subjected to a certain extrusion pressure. If the welding of the injection hole is abnormal, electrolyte will flow out. After the electrolyte contacts the detection piece 201, a color reaction will appear. The color of the test paper can be observed with the naked eye to determine whether there is leakage. If there is a small defect in the welding of the battery sealing nail, squeezing is more conducive to the outflow of the electrolyte. Specifically, the detection part 201 is a PH test paper, which is located between the two poles of the battery and below the injection hole; the restraint plate 3 and the restraint partition 4 are both injection molded parts; the electrolyte is acidic, and the PH test paper will turn red after leakage; a number of protrusions are provided on the bottom plate 2, and the PH test paper is detachably set on the protrusions.

[0019] As a preferred embodiment of the utility model, it may also have the following additional technical features:

[0020] In this embodiment, the box frame 10 includes two fixed plates 101, positioning strips 102 and bottom bars 103, the positioning strips 102 and bottom bars 103 are arranged between the two fixed plates 101; the first protrusions 302 are arranged on both sides of the restraining plate 3, and the second protrusions 402 are arranged on both sides of the restraining partition 4. The top of the bottom bar 103 abuts against the bottom of the restraining plate 3 and the restraining partition 4 to support them, and the bottoms of the first protrusion 302 and the second protrusion 402 respectively abut against the top of the positioning strip 102, so that the restraining plate 3 and the restraining partition 4 can move linearly in the box frame 10. Specifically, the bottom plate 2 is arranged at the bottom of the two bottom bars 103.

[0021] In this embodiment, the box frame 10 further includes three limiting rods 104, which are detachably connected to the two fixing plates 101 respectively; a first U-shaped groove 303 is provided in the middle of the restraining plate 3, and a second U-shaped groove 403 is provided in the middle of the restraining partition 4, one limiting rod 104 cooperates with the first U-shaped groove 303 and the second U-shaped groove 403 respectively, and the other two limiting rods 104 are above the first protrusion 302 and the second protrusion 402 to prevent the restraining plate 3 and the restraining partition 4 from falling out of the box frame 10. Specifically, the limiting rod 104 is connected to the fixing plate 101 by bolts.

[0022] In this embodiment, a plurality of supporting feet are provided at the bottom of the box frame 10 so that the box frame 10 is at a certain distance from the ground or the desktop. When the PH test paper needs to be replaced, the bottom plate 2 can be directly pulled out from the bottom of the box frame 10.

[0023] In this embodiment, a buffer device is also included, which includes a push plate 5, a buffer plate 6 and a plurality of springs 7. The push plate 5 and the buffer plate 6 can slide in the box frame 10. A plurality of springs 7 are arranged between the push plate 5 and the buffer plate 6. When the push plate 5 is subjected to force, the buffer plate 6 is pushed to move by the plurality of springs 7. The buffer plate 6 gives a thrust to one of the restraining plates 3. When the battery is subjected to force, the battery gives a thrust to the restraining partition 4, forming a joint effect. A plurality of batteries are clamped and the spring 7 is compressed. When the push plate 5 is not subjected to force, the push plate 5 is subjected to the reaction force of the spring 7 and returns to its original position. Specifically, the push plate 5 and the buffer plate 6 are provided with placement holes, and both ends of the spring 7 are placed in the placement holes; the push plate 5 and the buffer plate 6 are provided with protrusions on both sides, and the bottom of the push plate 5 and the buffer plate 6 abuts against the top of the bottom rod 103, the bottom of the protrusion abuts against the top of the positioning bar 102, and the top of the protrusion abuts against the bottom of the limit rod 104.

[0024] In this embodiment, a cushion block 501 is provided on one side of the push plate 5. When the push plate 5 needs to be pushed manually, the cushion block 501 creates a gap between the fixed plate 101 and the push plate 5, making it convenient for the push plate 5 to be pushed manually.

[0025] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool for detecting battery leakage, characterized in that: The invention comprises a box frame (10), a bottom plate (2), two restraining plates (3) and a plurality of restraining partitions (4), wherein the bottom plate (2) is arranged at the bottom of the box frame (10), a plurality of detection parts (201) are arranged at intervals on the bottom plate (2), the two restraining plates (3) are respectively arranged at one end inside the box frame (10), a plurality of restraining partitions (4) are arranged between the two restraining plates (3), at least two first placement grooves (301) are arranged at intervals on one side of the restraining plate (3) facing the restraining partition, at least two second placement grooves (401) are arranged at intervals on both sides of the restraining partition (4), and the two restraining plates (3) and the plurality of restraining partitions (4) can slide inside the box frame (10).

2. The tool for detecting battery leakage according to claim 1, characterized in that: The box frame (10) comprises two fixed plates (101), positioning strips (102) and bottom bars (103), wherein the positioning strips (102) and bottom bars (103) are arranged between the two fixed plates (101); first protrusions (302) are arranged on both sides of the restraining plate (3), and second protrusions (402) are arranged on both sides of the restraining partition (4).

3. The tool for detecting battery leakage according to claim 2, characterized in that: The box frame (10) also includes three limit rods (104), which are detachably connected to the two fixing plates (101) respectively; a first U-shaped groove (303) is provided in the middle of the restraining plate (3), and a second U-shaped groove (403) is provided in the middle of the restraining partition (4).

4. The tool for detecting battery leakage according to claim 1, characterized in that: A plurality of supporting legs are provided at the bottom of the box frame (10).

5. The tool for detecting battery leakage according to claim 1, characterized in that: It also includes a buffer device, which includes a push plate (5), a buffer plate (6) and a plurality of springs (7). The push plate (5) and the buffer plate (6) can both slide in the box frame (10), and a plurality of springs (7) are provided between the push plate (5) and the buffer plate (6).

6. The tool for detecting battery leakage according to claim 5, characterized in that: A cushion block (501) is provided on one side of the push plate (5).

Images