Battery extrusion device

Abstract

The utility model belongs to the technical field of extrusion devices, and particularly relates to a battery extrusion device which comprises a test shell, a movable clamp is movably arranged on the left side of the inner bottom wall of the test shell, a static clamp is fixedly mounted on the right side of the inner bottom wall of the test shell, and baffle plates are arranged on the sides, close to each other, of the movable clamp and the static clamp. Four positioning strips distributed in an annular array are fixedly installed on the side faces of the baffle plates, and a battery to be tested is fixed between the two baffle plates. According to the utility model, a battery to be tested is arranged between the movable clamp and the static clamp, and the second electric telescopic rod drives the movable clamp to move towards the static clamp, so that the battery is positioned, namely, the end part of the battery is fixed among the four positioning strips on the baffle disc, and then the battery can be tested through the needling assembly; and the extrusion test of the battery can be directly realized through the second electric telescopic rod, that is, the two baffle plates extrude the battery to be tested, so that the extrusion test operation of the battery has selectivity and is used as required.

Description

Technical Field

[0001] The utility model relates to an extrusion device, in particular to a battery extrusion device. Background Art

[0002] The explosion-proof performance of batteries is one of the standards for evaluating battery quality. During the inspection process, the batteries are squeezed through an extrusion test device, and pressurization is used to determine whether the batteries will catch fire or explode. Generally, several test samples are taken from a batch of batteries and placed in a battery squeeze test device for testing. Only when all samples meet the standards can the safety performance of the batteries be ensured.

[0003] In battery testing, for extrusion conditions, the battery is usually placed on an extrusion table, with one side of the battery in contact with the extrusion device and the other side in contact with a rigid wall, and the extrusion device performs an extrusion test on the battery. In the prior art, when different areas of the battery need to be tested, the fixing device needs to be removed and the position needs to be adjusted. The adjustment steps are cumbersome, which reduces the test efficiency and results in poor overall test performance. Utility Model Content

[0004] The main purpose of the present disclosure is to provide a battery squeezing device to effectively solve the problems raised by the inventor in the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A battery squeezing device comprises a test shell, wherein a dynamic clamp is movably provided on the left side of the inner bottom wall of the test shell, and a static clamp is fixedly installed on the right side of the inner bottom wall of the test shell, baffles are provided on the sides of the dynamic clamp and the static clamp close to each other, four positioning strips distributed in a circular array are fixedly installed on the side of the baffle, a battery to be tested is fixed between the two baffles, and a puncture assembly is provided on the inner top wall of the test shell.

[0007] Preferably, a second electric telescopic rod is fixedly mounted on the left inner wall of the test shell, and an output end of the second electric telescopic rod is fixedly connected to a movable clamp, and the movable clamp is slidably connected to the inner bottom wall of the test shell.

[0008] Preferably, a steering shaft is rotatably mounted on one side of the dynamic clamp and the static clamp that are close to each other, and a baffle is fixedly mounted on the other end of the steering shaft.

[0009] Preferably, the right end of the steering shaft on the static clamp is fixedly connected with a reduction gear, a driving motor is fixedly installed on the side of the static clamp, and the output shaft of the driving motor is fixedly connected with a driving gear, and the driving gear is meshed with the reduction gear.

[0010] Preferably, the acupuncture assembly includes a first electric telescopic rod, a pressure plate and a high temperature resistant extrusion head, wherein the first electric telescopic rod is fixedly mounted on the inner top wall of the test shell, and the output end of the first electric telescopic rod is fixedly connected to the pressure plate, and the high temperature resistant extrusion head is arranged at the bottom of the pressure plate.

[0011] Preferably, a plurality of evenly distributed threaded openings are provided at the bottom of the pressing plate, and the top end of the high temperature resistant extrusion head is a threaded end, and the threaded end is screwed into one of the threaded openings.

[0012] In view of this, compared with the prior art, the beneficial effects of the utility model are:

[0013] (I) In the present application, the battery to be tested is placed between the dynamic clamp and the static clamp (two baffles), and the second electric telescopic rod moves the dynamic clamp toward the static clamp, thereby positioning the battery, that is, the end of the battery is fixed between the four positioning strips on the baffle, and then the battery can be tested by the needle puncture assembly. The battery can also be directly squeezed through the second electric telescopic rod, that is, the two baffles squeeze the tested battery, so that the battery squeeze test operation is selective and can be used according to needs.

[0014] (ii) In the present application, during the needle puncture extrusion test, the first electric telescopic rod drives the pressure plate to move downward, so that the high temperature resistant extrusion head descends and squeezes the battery. The battery can also be turned over before the test, and the driving motor drives the driving gear to rotate. Under the meshing transmission of the reduction gear, the steering shaft on the right drives the baffle to rotate, so as to test different surfaces of the battery to improve the comprehensiveness of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic diagram of the structure of the battery extrusion device provided by the utility model;

[0016] Figure 2 Shown is a side view of the baffle;

[0017] Figure 3 Shown is a bottom view of the pressure plate;

[0018] Figure 4 Shown is a perspective view of a high temperature resistant extrusion head.

[0019] icon:

[0020] 1-test housing; 2-dynamic fixture; 3-static fixture; 4-blocking plate; 5-positioning bar; 6-first electric telescopic rod; 7-pressing plate; 8-high temperature resistant extrusion head; 9-steering shaft; 10-driving motor; 11-driving gear; 12-reduction gear; 13-second electric telescopic rod; 14-threaded port. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 , the utility model provides the following embodiments:

[0023] A battery extrusion device comprises a test shell 1, a dynamic clamp 2 is movably provided on the left side of the inner bottom wall of the test shell 1, and a static clamp 3 is fixedly installed on the right side of the inner bottom wall of the test shell 1, a baffle 4 is provided on the side where the dynamic clamp 2 and the static clamp 3 are close to each other, four positioning bars 5 distributed in a ring array are fixedly installed on the side of the baffle 4, a battery to be tested is fixed between the two baffles 4, a needle puncture assembly is provided on the inner top wall of the test shell 1, the needle puncture assembly comprises a first electric telescopic rod 6, a pressure plate 7 and a high temperature resistant extrusion head 8, the first electric telescopic rod 6 is fixedly installed on the inner top wall of the test shell 1, and the output end of the first electric telescopic rod 6 is fixedly connected to the pressure plate 7, and the high temperature resistant extrusion head 8 is arranged at the bottom of the pressure plate 7.

[0024] Specifically, a second electric telescopic rod 13 is fixedly installed on the left inner wall of the test housing 1 , and an output end of the second electric telescopic rod 13 is fixedly connected to the movable clamp 2 , and the movable clamp 2 is slidably connected to the inner bottom wall of the test housing 1 .

[0025] Specifically, a steering shaft 9 is rotatably installed on the side where the dynamic clamp 2 and the static clamp 3 are close to each other, and a baffle plate 4 is fixedly installed on the other end of the steering shaft 9. The right end of the steering shaft 9 on the static clamp 3 is fixedly connected with a reduction gear 12. A driving motor 10 is fixedly installed on the side of the static clamp 3, and the output shaft of the driving motor 10 is fixedly connected with a driving gear 11, which meshes with the reduction gear 12.

[0026] Specifically, a plurality of evenly distributed threaded openings 14 are provided at the bottom of the pressing plate 7, and the top end of the high temperature resistant extrusion head 8 is a threaded end, and the threaded end is screwed into one of the threaded openings 14, so as to facilitate the disassembly and assembly of the high temperature resistant extrusion head 8, and the installation position is diverse to realize the testing of different positions of the battery.

[0027] The specific implementation method of this embodiment is as follows: the battery to be tested is placed between the dynamic clamp 2 and the static clamp 3 (two baffles 4), and the second electric telescopic rod 13 moves the dynamic clamp 2 toward the static clamp 3, and then the battery is positioned, that is, the end of the battery is fixed between the four positioning bars 5 on the baffle 4, and then the test can be carried out through the needle assembly. The battery extrusion test can also be directly achieved through the second electric telescopic rod 13, that is, the two baffles 4 squeeze the battery to be tested, so that the battery extrusion test operation is selective and can be used according to needs;

[0028] During the needle puncture extrusion test, the first electric telescopic rod 6 drives the pressure plate 7 to move downward, so that the high temperature resistant extrusion head 8 descends and squeezes the battery. The battery can also be turned over before the test. The driving motor 10 drives the driving gear 11 to rotate. Under the meshing transmission of the reduction gear 12, the steering shaft 9 on the right drives the baffle 4 to rotate, so as to test different surfaces of the battery to improve the comprehensiveness of the test.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A battery extrusion device, characterized in that: The invention comprises a test shell (1), wherein a movable clamp (2) is movably provided on the left side of the inner bottom wall of the test shell (1), and a static clamp (3) is fixedly installed on the right side of the inner bottom wall of the test shell (1), a baffle (4) is provided on the side where the movable clamp (2) and the static clamp (3) are close to each other, and four positioning strips (5) distributed in a circular array are fixedly installed on the side of the baffle (4), and a battery to be tested is fixed between the two baffles (4), and a puncture assembly is provided on the inner top wall of the test shell (1).

2. A battery extrusion device according to claim 1, characterized in that: A second electric telescopic rod (13) is fixedly mounted on the left inner wall of the test housing (1), and the output end of the second electric telescopic rod (13) is fixedly connected to the movable clamp (2), and the movable clamp (2) is slidably connected to the inner bottom wall of the test housing (1).

3. A battery extrusion device according to claim 2, characterized in that: A steering shaft (9) is rotatably mounted on one side of the movable clamp (2) and the static clamp (3) that are close to each other, and a baffle (4) is fixedly mounted on the other end of the steering shaft (9).

4. A battery extrusion device according to claim 3, characterized in that: The right end of the steering shaft (9) on the static clamp (3) is fixedly connected to a reduction gear (12), a driving motor (10) is fixedly installed on the side of the static clamp (3), and the output shaft of the driving motor (10) is fixedly connected to a driving gear (11), and the driving gear (11) is meshed with the reduction gear (12).

5. A battery extrusion device according to claim 4, characterized in that: The acupuncture assembly comprises a first electric telescopic rod (6), a pressing plate (7) and a high temperature resistant extrusion head (8), wherein the first electric telescopic rod (6) is fixedly mounted on the inner top wall of the test housing (1), and the output end of the first electric telescopic rod (6) is fixedly connected to the pressing plate (7), and the high temperature resistant extrusion head (8) is arranged at the bottom of the pressing plate (7).

6. A battery extrusion device according to claim 5, characterized in that: The bottom of the pressing plate (7) is provided with a plurality of evenly distributed threaded openings (14), the top end of the high temperature resistant extrusion head (8) is a threaded end, and the threaded end is screwed into one of the threaded openings (14).

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