CN215727316U

CN215727316U - Testing arrangement of lithium cell casing tensile properties

Info

Publication number: CN215727316U
Application number: CN202121980648.1U
Authority: CN
Inventors: 王震昊; 秦勇其; 李孟浩; 高波; 宋小佳
Original assignee: Ningde Zhenyu Auto Parts Co ltd
Current assignee: Ningde Zhenyu Auto Parts Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-02-01
Anticipated expiration: 2031-08-23

Abstract

A testing device for tensile property of a lithium battery shell comprises a protective structure, an auxiliary positioning structure and a base, wherein the top end of the base is fixedly connected with a mounting frame; the protective structure comprises a fixed baffle, a movable baffle is arranged on the outer side of the fixed baffle and is in sliding connection with the fixed baffle, a sliding groove is formed in the side face of the fixed baffle, a sliding block is fixedly connected to the inner side wall of the movable baffle, and the sliding block is clamped inside the sliding groove; the bottom end of the sliding block is provided with a hydraulic rod, the hydraulic rod is fixedly connected with the inner side wall of the fixed baffle, and the output end of the hydraulic rod is fixedly connected with the bottom end of the sliding block. According to the utility model, the height of the movable frame can be detected through the infrared distance measuring head, so that feedback is formed on the hydraulic rod, and the hydraulic rod can push the movable baffle plate to move outwards, so that the relative length between the movable baffle plate and the fixed baffle plate is adjusted, the protection range of the movable baffle plate and the fixed baffle plate is adjusted, and the safety is enhanced.

Description

Testing arrangement of lithium cell casing tensile properties

Technical Field

The utility model relates to the technical field of tensile test of lithium battery shells, in particular to a device for testing tensile property of a lithium battery shell.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as an anode material and uses a non-aqueous electrolyte solution, and unlike the lithium battery, the lithium battery is a primary battery and the lithium battery is a rechargeable battery; because the chemical characteristics of lithium metal are very active, the lithium metal has very high requirements on the environment in processing, storage and use, so the lithium battery is not applied for a long time, miniaturized equipment is increasingly increased along with the development of microelectronic technology at the end of the twentieth century, high requirements are provided for power supplies, and the lithium battery enters a large-scale practical stage.

Traditional lithium cell casing tensile test device's structure is generally all comparatively simple, lacks protective capacities when using, has certain potential safety hazard when the staff is close to the testing arrangement of work, and the staff of being not convenient for closely watches, and present testing arrangement is unfavorable for adjusting the use simultaneously, has certain limitation.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In order to solve the technical problems in the background art, the utility model provides a device for testing the tensile property of a lithium battery shell.

(II) technical scheme

The utility model provides a testing device for tensile property of a lithium battery shell, which comprises a protective structure, an auxiliary positioning structure and a base, wherein the top end of the base is fixedly connected with an installation frame;

the protective structure comprises a fixed baffle, a movable baffle is arranged on the outer side of the fixed baffle and is in sliding connection with the fixed baffle, a sliding groove is formed in the side face of the fixed baffle, a sliding block is fixedly connected to the inner side wall of the movable baffle, and the sliding block is clamped inside the sliding groove; the bottom end of the sliding block is provided with a hydraulic rod, the hydraulic rod is fixedly connected with the inner side wall of the fixed baffle, and the output end of the hydraulic rod is fixedly connected with the bottom end of the sliding block;

the auxiliary positioning structure comprises fixed plates, wherein an installation column is fixedly connected to the outer side surface of one fixed plate, a movable cavity is formed in the installation column, a movable plate is arranged in the movable cavity, a positioning column is fixedly connected to the right side surface of the movable plate, and a limiting column is fixedly connected to the left side surface of the movable plate; the movable plate is characterized in that a spring is arranged on the left side of the movable plate, the right end of the spring is sleeved on the surface of the positioning column, an electromagnet is arranged at the left end of the spring, and the electromagnet is fixedly connected with the inner side wall of the movable cavity.

Preferably, the mounting bracket is of a U-shaped structure, a movable frame is arranged inside the mounting bracket, the movable frame is connected with the mounting bracket in a sliding mode, and the two fixed plates are symmetrically distributed on the front side face of the movable frame.

Preferably, the base top and the equal rigid coupling in adjustable shelf bottom have mounting fixture, mounting fixture bilateral symmetry distributes has two infrared ray range finding heads, just infrared ray range finding head inlay in the base upper surface.

Preferably, the movable baffle and the fixed baffle are of a U-shaped structure, the surfaces of the movable baffle and the fixed baffle are respectively provided with a toughened glass window, two sides of the bottom end of the fixed baffle are respectively and fixedly connected with a first rotating shaft and a second rotating shaft, the outer end of the first rotating shaft is rotatably connected with the right end of the fixed plate through a bearing, the outer side surface of the right end of the fixed plate is fixedly connected with a motor, and the output end of the motor is fixedly connected with the outer end of the first rotating shaft.

Preferably, the outer end of the second rotating shaft is connected with the left end through a bearing in a rotating mode, the fixed plate is connected with the outer end of the second rotating shaft in a rotating mode, the positioning groove is formed in the outer end of the second rotating shaft, and the positioning column is connected with the positioning groove in a clamping mode.

Preferably, the positioning column and the positioning groove are both in a regular quadrilateral structure, and the movable plate and the movable cavity are both in a regular hexagon structure.

Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

1. the position of the fixed baffle can be adjusted through the motor, so that the fixed baffle can be used or stored, after the fixed baffle is adjusted, the electromagnet is powered off, at the moment, the movable plate can be pushed to slide along the movable cavity under the reaction of the spring until the positioning column is clamped in the positioning groove, and the fixed baffle can be fixed, so that the use is simple;

2. according to the utility model, the height of the movable frame can be detected through the infrared distance measuring head, so that feedback is formed on the hydraulic rod, and the hydraulic rod can push the movable baffle plate to move outwards, so that the relative length between the movable baffle plate and the fixed baffle plate is adjusted, the protection range of the movable baffle plate and the fixed baffle plate is adjusted, and the safety is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of a device for testing tensile properties of a lithium battery case according to the present invention.

Fig. 2 is a connection diagram of a movable baffle and a movable frame in the testing device for tensile property of a lithium battery shell provided by the utility model.

Fig. 3 is a connection diagram of a position-limiting column, a movable plate and a positioning column in the testing device for tensile property of a lithium battery case according to the present invention.

Reference numerals: 1. a base; 2. a mounting frame; 3. a movable frame; 4. a fixing plate; 5. a motor; 6. a movable baffle; 61. a slider; 7. fixing a baffle plate; 71. a chute; 72. a first rotating shaft; 73. a second rotating shaft; 731. positioning a groove; 8. a hydraulic lever; 9. fixing the clamp; 10. an infrared ranging head; 11. a toughened glass window; 12. mounting a column; 121. a movable cavity; 13. a spring; 14. an electromagnet; 15. a limiting column; 16. a movable plate; 17. a positioning column; 18. and a bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the device for testing tensile property of a lithium battery case provided by the utility model comprises a protection structure, an auxiliary positioning structure and a base 1, wherein a mounting frame 2 is fixedly connected to the top end of the base 1;

the protective structure comprises a fixed baffle 7, a movable baffle 6 is arranged on the outer side of the fixed baffle 7, the movable baffle 6 is connected with the fixed baffle 7 in a sliding manner, a sliding groove 71 is formed in the side surface of the fixed baffle 7, a sliding block 61 is fixedly connected to the inner side wall of the movable baffle 6, and the sliding block 61 is clamped in the sliding groove 71; the bottom end of the sliding block 61 is provided with a hydraulic rod 8, the hydraulic rod 8 is fixedly connected with the inner side wall of the fixed baffle 7, and the output end of the hydraulic rod 8 is fixedly connected with the bottom end of the sliding block 61;

the auxiliary positioning structure comprises fixed plates 4, wherein a mounting column 12 is fixedly connected to the outer side surface of one fixed plate 4, a movable cavity 121 is formed in the mounting column 12, a movable plate 16 is arranged in the movable cavity 121, a positioning column 17 is fixedly connected to the right side surface of the movable plate 16, and a limiting column 15 is fixedly connected to the left side surface of the movable plate 16; the left side of the movable plate 16 is provided with a spring 13, the right end of the spring 13 is sleeved on the surface of the positioning column 17, the left end of the spring 13 is provided with an electromagnet 14, and the electromagnet 14 is fixedly connected with the inner side wall of the movable cavity 121.

According to the utility model, firstly, a lithium battery shell is placed between two fixing clamps 9, the two fixing clamps 9 can fixedly clamp two ends of the lithium battery shell, then the motor 5 works, the motor 5 can drive the fixing baffle 7 to rotate through the first rotation 72 until the fixing baffle 7 is clamped at the front side of the lithium battery shell, then the electromagnet 14 is powered off, at the moment, the movable plate 16 can be pushed to slide along the movable cavity 121 under the reaction of the spring 13 until the positioning column 17 is clamped inside the positioning groove 731, and as the movable plate 16 and the movable cavity 121 are both in a regular hexagon structure, the positioning column 17 and the positioning groove 731 are both in a regular quadrilateral structure, so that the fixing baffle 7 can be fixed;

then can drive adjustable shelf 3 at this device during operation and move to the top, adjustable shelf 3 can stretch lithium cell casing, and infrared ray range finding head 10 can detect the height of adjustable shelf 3 simultaneously, then form the feedback to hydraulic stem 8, and hydraulic stem 8 can promote adjustable fender 6 to the outer end motion this moment, adjust the relative length between adjustable fender 6 and the fixed stop 7 with this, adjust the protective range of adjustable fender 6 and fixed stop 7 with this, strengthened the security.

In an optional embodiment, the mounting frame 2 is a U-shaped structure, the movable frame 3 is disposed inside the mounting frame 2, the movable frame 3 is slidably connected to the mounting frame 2, and the two fixing plates 4 are symmetrically distributed on the front side surface of the movable frame 3.

It should be noted that, it is convenient to fix the two fixing plates 4 and the front side surfaces of the two ends of the movable frame 3, so that the structure between the two fixing plates 4 can be conveniently installed, and the movable frame 3 can drive the fixing plates 4 to synchronously slide when moving.

In an optional embodiment, a fixed clamp 9 is fixedly connected to both the top end of the base 1 and the bottom end of the movable frame 3, two infrared ranging heads 10 are symmetrically distributed on both sides of the fixed clamp 9, and the infrared ranging heads 10 are embedded in the upper surface of the base 1.

It should be noted that the fixing clamp 9 is a two-jaw clamp in the prior art, two ends of the lithium battery shell can be fixedly clamped by the two fixing clamps 9, and the lithium battery shell can be stretched when the movable frame 3 moves to the top end, so as to test the tensile property of the lithium battery shell.

In an optional embodiment, the movable baffle 6 and the fixed baffle 7 are both U-shaped structures, the surfaces of the movable baffle 6 and the fixed baffle 7 are both provided with a toughened glass window 11, two sides of the bottom end of the fixed baffle 7 are respectively and fixedly connected with a first rotating shaft 72 and a second rotating shaft 73, the outer end of the first rotating shaft 72 is rotatably connected with the right end of the fixed plate 4 through a bearing 18, the right end of the outer side surface of the fixed plate 4 is fixedly connected with a motor 5, and the output end of the motor 5 is fixedly connected with the outer end of the first rotating shaft 72.

It should be noted that the front of the device can be protected by the movable baffle 6 and the fixed baffle 7, so that the safety of workers is enhanced; simultaneously be in motor 5 during operation can drive retaining panel 7 centers on the outer end of fixed plate 4 rotates, thereby it is adjustable retaining panel 7's position is convenient for operate lithium cell casing.

In an alternative embodiment, the outer end of the second rotating shaft 73 is rotatably connected to the fixing plate 4 at the left end through a bearing 18, a positioning groove 731 is formed at the outer end of the second rotating shaft 73, and the positioning column 17 is connected to the positioning groove 731 in a snap-fit manner.

It should be noted that the fixed baffle 7 can drive the second rotating shaft 73 to rotate synchronously when rotating, and after the position of the fixed baffle 7 is adjusted, the positioning column 17 can be clamped in the positioning groove 731 under the reaction of the spring 13, so as to fix the fixed baffle 7 in an auxiliary manner, and enhance the stability.

In an alternative embodiment, the positioning column 17 and the positioning groove 731 are both in a regular quadrilateral structure, and the movable plate 16 and the movable cavity 121 are both in a regular hexagonal structure.

It should be noted that the positioning column 17 and the positioning groove 731 are arranged in a regular quadrilateral structure, so that the fixed baffle 7 can be fixed when vertically upwards or vertically downwards, and the movable plate 16 and the movable cavity 121 are arranged in a regular hexagonal structure, so that the movable plate 16 and the movable cavity 121 can be prevented from rotating.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a lithium battery case tensile properties's testing arrangement which characterized in that: the device comprises a protection structure, an auxiliary positioning structure and a base (1), wherein the top end of the base (1) is fixedly connected with a mounting rack (2);

the protective structure comprises a fixed baffle (7), a movable baffle (6) is arranged on the outer side of the fixed baffle (7), the movable baffle (6) is connected with the fixed baffle (7) in a sliding mode, a sliding groove (71) is formed in the side face of the fixed baffle (7), a sliding block (61) is fixedly connected to the inner side wall of the movable baffle (6), and the sliding block (61) is clamped inside the sliding groove (71); the bottom end of the sliding block (61) is provided with a hydraulic rod (8), the hydraulic rod (8) is fixedly connected with the inner side wall of the fixed baffle (7), and the output end of the hydraulic rod (8) is fixedly connected with the bottom end of the sliding block (61);

the auxiliary positioning structure comprises fixed plates (4), a mounting column (12) is fixedly connected to the outer side face of one fixed plate (4), a movable cavity (121) is formed in the mounting column (12), a movable plate (16) is arranged in the movable cavity (121), a positioning column (17) is fixedly connected to the right side face of the movable plate (16), and a limiting column (15) is fixedly connected to the left side face of the movable plate (16); the movable plate (16) is provided with a spring (13) on the left side, the right end of the spring (13) is sleeved on the surface of the positioning column (17), the left end of the spring (13) is provided with an electromagnet (14), and the electromagnet (14) is fixedly connected with the inner side wall of the movable cavity (121).

2. The device for testing the tensile property of the lithium battery shell as claimed in claim 1, wherein: mounting bracket (2) are U type structure, inside adjustable shelf (3) that is equipped with of mounting bracket (2), adjustable shelf (3) with mounting bracket (2) sliding connection, and two fixed plate (4) symmetric distribution in adjustable shelf (3) leading flank.

3. The device for testing the tensile property of the lithium battery shell as claimed in claim 2, wherein: the infrared distance measuring device is characterized in that a fixing clamp (9) is fixedly connected to the top end of the base (1) and the bottom end of the movable frame (3), two infrared distance measuring heads (10) are symmetrically distributed on two sides of the fixing clamp (9), and the infrared distance measuring heads (10) are embedded in the upper surface of the base (1).

4. The device for testing the tensile property of the lithium battery shell as claimed in claim 1, wherein: adjustable fender (6) with fixed stop (7) are U type structure, adjustable fender (6) with fixed stop (7) surface all is equipped with toughened glass window (11), fixed stop (7) bottom both sides rigid coupling respectively have first pivot (72) and second pivot (73), bearing (18) and right-hand member are passed through to first pivot (72) outer end fixed plate (4) rotate to be connected, the right-hand member fixed plate (4) lateral surface rigid coupling has motor (5), just motor (5) output with first pivot (72) outer end rigid coupling.

5. The device for testing the tensile property of the lithium battery shell as claimed in claim 4, wherein: the outer end of the second rotating shaft (73) is connected with the left end in a rotating mode through a bearing (18) and the fixing plate (4), a positioning groove (731) is formed in the outer end of the second rotating shaft (73), and the positioning column (17) is connected with the positioning groove (731) in a clamping mode.

6. The device for testing the tensile property of the lithium battery shell as claimed in claim 5, wherein: the positioning column (17) and the positioning groove (731) are both in a regular quadrilateral structure, and the movable plate (16) and the movable cavity (121) are both in a regular hexagon structure.