CN209910938U

CN209910938U - Lithium battery drop test device

Info

Publication number: CN209910938U
Application number: CN201920464092.7U
Authority: CN
Inventors: 高普政
Original assignee: Guangzhou Jince Technology Co Ltd
Current assignee: Guangzhou Jince Technology Co Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-01-07
Anticipated expiration: 2029-04-08

Abstract

The utility model belongs to the technical field of battery testing, in particular to a lithium battery drop test device, which comprises an explosion-proof box, wherein a detection port is arranged at the center of the top of the explosion-proof box, telescopic frames are fixedly arranged at the left side and the right side of the detection port, the bottom of each telescopic frame is fixedly connected with the top of the explosion-proof box, the top of each telescopic frame is fixedly connected with a fixed plate, the center of the bottom of the fixed plate is fixedly connected with a clamping device through a cylinder, and an adjusting screw rod is arranged at the left side of the top of the explosion-proof box; under mutually supporting through clamping device, push pedal and cylinder, accessible clamping device realizes carrying out the centre gripping back to the lithium cell, carries out drop test automatically, and after the push pedal promoted the lithium cell, drives clamping device through the cylinder and carries out the centre gripping back to the lithium cell is automatic, falls once more, reduces manpower fixed mounting, and degree of automation is high, and has alleviateed staff's work burden.

Description

Lithium battery drop test device

Technical Field

The utility model belongs to the technical field of the battery test, concretely relates to lithium cell drop test device.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, and the lithium metal has very high requirements on the environment due to the very active chemical characteristics of the lithium metal, so that the lithium metal is processed, stored and used. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have become mainstream, and the lithium batteries can be roughly divided into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable.

Lithium batteries sold in the market at present need to achieve specified impact strength, otherwise, the lithium batteries collide during use or transportation, and burst due to insufficient strength. Therefore the lithium cell need be through the drop test of appointed height before the volume production, and the enterprise of most production lithium cells carries out the drop test through the manual work at present, take the appointed height with the lithium cell, the hand is let the lithium cell let its free fall, does not possess relevant detection and test equipment, the stability and the reliability that lead to the measured data are relatively poor, the degree of accuracy is not high, and the lithium cell can burst when falling to ground, if the position that the experimenter apart from bursting is very near, then there is certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a lithium cell drop test device has and can carry out the centre gripping test to the lithium cell automatically, and degree of automation is high, detect the characteristics that data reliability is high, factor of safety is higher.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium battery drop test device, includes explosion-proof case, the top center department of explosion-proof case has seted up the detection mouth, the left and right sides fixed mounting who detects the mouth has the expansion bracket, the bottom of expansion bracket with the top fixed connection of explosion-proof case, just the top and the fixed plate fixed connection of expansion bracket, fixed plate bottom center department passes through cylinder and clamping device fixed connection, the top left side of explosion-proof case is equipped with adjusting screw, fixed mounting has the threaded sleeve on the fixed plate, adjusting screw runs through the threaded sleeve and the output fixed connection who rotates the motor, rotate motor fixed mounting at the top of backup pad, adjusting screw's bottom pass through the bearing frame with explosion-proof case rotates the connection, the equal fixed mounting in both sides has the push pedal about the bottom of explosion-proof case.

Preferably, the clamping device comprises a shell, an electric push rod is fixedly mounted at the center of the top of an inner cavity of the shell, the output end of the electric push rod is fixedly connected with the top of the connecting plate, the left side and the right side of the bottom of the connecting plate are fixedly connected with the sliding plate through connecting rods, the bottom of the sliding plate is movably connected with the movable rod through connecting lugs, one side of the movable rod, far away from the sliding plate, is fixedly connected with the movable blocks, and clamping plates are fixedly mounted on the opposite sides of the two movable blocks.

Preferably, the top of the connecting plate is fixedly connected with the bottom of the inner cavity of the shell through a spring.

Preferably, the bottom of the inner cavity of the housing is provided with a slide rail matched with the moving block, and the moving block is slidably connected with the bottom of the inner cavity of the housing through the slide rail.

Preferably, the shell is of a concave structure, a groove matched with the sliding plate is formed in the side wall of the inner cavity of the shell, and the sliding plate is in sliding connection with the side wall of the inner cavity of the shell through the groove.

Preferably, the right side wall of the explosion-proof box is fixedly provided with a measuring rod, the top of the measuring rod is fixedly connected with the bottom of the supporting plate, the measuring rod is provided with scale marks, and the right side of the fixing plate is sleeved on the measuring rod.

Preferably, the center of the bottom of the explosion-proof box corresponds to the detection port and the clamping device.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in through mutually supporting of clamping device, push pedal and cylinder under, accessible clamping device realizes carrying out the centre gripping back to the lithium cell, carries out drop test automatically, and after the push pedal promoted the lithium cell, drives clamping device through the cylinder and carries out the centre gripping back to the lithium cell is automatic, falls once more, reduces manpower fixed mounting, and degree of automation is high, and has alleviateed staff's work burden.

The utility model discloses be equipped with an explosion-proof case, drop test goes on in the explosion-proof case, has effectively prevented the lithium cell explosion in drop test process to cause the emergence of incident. Thereby, the safety factor of the device is improved to be higher, and the use is safer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the explosion-proof case of the present invention;

FIG. 3 is a schematic view of the structure of the clamping device of the present invention;

in the figure: 1. an explosion-proof box; 2. a detection port; 3. a telescopic frame; 4. a fixing plate; 5. a threaded sleeve; 6. a bearing seat; 7. rotating the motor; 8. a support plate; 9. a measuring rod; 10. adjusting the screw rod; 11. a clamping device; 111. an electric push rod; 112. a connecting plate; 113. a connecting rod; 114. a slide plate; 115. a moving block; 116. a spring; 117. a clamping plate; 12. pushing the plate; 13. and a cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a lithium battery drop test device, including explosion-proof case 1, the top center department of explosion-proof case 1 has seted up detection mouth 2, the left and right sides fixed mounting of detection mouth 2 has expansion bracket 3, the bottom of expansion bracket 3 and explosion-proof case 1's top fixed connection, and expansion bracket 3's top and fixed plate 4 fixed connection, fixed plate 4 bottom center department passes through

cylinder

13 and 11 fixed connection of clamping device, explosion-proof case 1's top left side is equipped with adjusting screw 10, fixed mounting has threaded sleeve 5 on the fixed plate 4, adjusting screw 10 runs through threaded sleeve 5 and the output end fixed connection who rotates motor 7, it installs the top at backup pad 8 to rotate motor 7 fixed mounting, adjusting screw 10's bottom is passed through bearing frame 6 and is connected with explosion-proof case 1 rotation, the equal fixed mounting in bottom left and right sides of explosion-proof case 1 has push.

In this embodiment, the rotation motor 7 drives the adjusting screw 10 to rotate, and under the interact of adjusting screw 10, threaded sleeve 5 and measuring staff 9, the fixed plate 4 is driven to reciprocate to highly adjusting clamping device 11, thereby can detecting the falling condition of lithium cell under not high. The model of the rotary motor 7 is Y80M 1-20.75 KW, the air cylinder 13 can drive the clamping device 11 to move downwards, so that the lithium battery after falling is clamped and lifted, next falling test is carried out, the model of the air cylinder 13 is SC63 & 175, the electric push rod 111 is arranged in the clamping device 11 to provide power for fixing and releasing the lithium battery by the clamping device 11, the model of the electric push rod 111 is TJC-C1 stroke 35MM-45MM,

specifically, the clamping device 11 comprises a housing, an electric push rod 111 is fixedly mounted at the center of the top of an inner cavity of the housing, the output end of the electric push rod 111 is fixedly connected with the top of a connecting plate 112, the left side and the right side of the bottom of the connecting plate 112 are fixedly connected with a sliding plate 114 through connecting rods 113, the bottom of the sliding plate 114 is movably connected with a movable rod through a connecting lug, one side of the movable rod, which is far away from the sliding plate 114, is fixedly connected with moving blocks 115, and clamping plates 117 are fixedly mounted on the opposite sides of the; the connecting plate 112 is pushed by the electric push rod 111 to move downwards, and under the interaction of the connecting rod 113, the sliding plate 114 and the moving block 115, the two clamping plates 117 are driven to move back to back, so that the lithium battery is released, and the drop test of the lithium battery is carried out.

Specifically, the top of the connecting plate 112 is fixedly connected to the bottom of the inner cavity of the housing through a spring 116, and the spring 116 can buffer the movement of the connecting plate 112.

Specifically, the bottom of the inner cavity of the housing is provided with a slide rail adapted to the moving block 115, the moving block 115 is slidably connected to the bottom of the inner cavity of the housing through the slide rail, and the slide rail allows the moving block 115 to slide on the bottom of the inner cavity of the housing and limits the moving block 115.

Specifically, the shell is of a concave structure, a groove matched with the sliding plate 114 is formed in the side wall of the inner cavity of the shell, and the sliding plate 114 is in sliding connection with the side wall of the inner cavity of the shell through the groove; the grooves allow the sled 114 to slide on the inner chamber side walls of the housing and limit the sled 114.

Specifically, explosion-proof case 1's right side wall fixed mounting has graduated flask 9, and the top of graduated flask 9 and the bottom fixed connection of backup pad 8 are equipped with the scale mark on the graduated flask 9, and the right side of fixed plate 4 cup joints on the graduated flask 9. graduated flask 9 has the effect of supporting fixed support plate 8, and can remove the in-process at fixed plate 4 and lead to fixed plate 4, is equipped with the scale mark on the graduated flask 9 and is favorable to the staff to highly adjusting fixed plate 4.

Specifically, the bottom center of explosion-proof box 1 is located and is detected mouthful 2, clamping device 11 and corresponding for bottom center of explosion-proof box 1, detection mouthful 2, clamping device 11 are located same horizontal position, are favorable to clamping device 11 to carry out the centre gripping to the lithium cell after falling, can carry out the drop test repeatedly.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the connecting plate 112 is pushed to move downwards by starting the electric push rod 111, under the action of the connecting plate 112, the connecting rod 113 pushes the sliding plate 114 to slide downwards, thereby driving the moving block 115 to move rightwards, so that the two clamping plates 117 move oppositely, then the lithium battery is placed between the two clamping plates 117, the electric push rod 111 is started to drive the connecting plate 112 to move upwards, thereby the two clamping plates 117 clamp and fix the lithium battery, after fixation, the rotating motor 7 can be started to drive the adjusting screw rod 10 to rotate, under the interaction of the threaded sleeve 5 and the measuring rod 9, the fixing plate 4 is driven to move upwards and downwards, thereby after the proper height is adjusted, the electric push rod 111 is started to release the lithium battery, so that the lithium battery freely falls to the bottom of the inner cavity of the explosion-proof box 1, a drop test is carried out, after the drop, the push plates 12 on both sides of the, then the air cylinder 13 drives the clamping device 11 to clamp the lithium battery, and the drop test is carried out again.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lithium battery drop test device, includes explosion-proof case (1), its characterized in that: the explosion-proof box is characterized in that a detection port (2) is formed in the center of the top of the explosion-proof box (1), telescopic frames (3) are fixedly mounted on the left side and the right side of the detection port (2), the bottom of each telescopic frame (3) is fixedly connected with the top of the explosion-proof box (1), the tops of the telescopic frames (3) are fixedly connected with a fixed plate (4), the center of the bottom of the fixed plate (4) is fixedly connected with a clamping device (11) through a cylinder (13), an adjusting screw rod (10) is arranged on the left side of the top of the explosion-proof box (1), a threaded sleeve (5) is fixedly mounted on the fixed plate (4), the adjusting screw rod (10) penetrates through the threaded sleeve (5) and is fixedly connected with the output end of a rotating motor (7), the rotating motor (7) is fixedly mounted on the top of a supporting plate (8), and the bottom of the adjusting screw rod (10) is rotatably connected with the explosion-proof box, push plates (12) are fixedly mounted on the left side and the right side of the bottom of the explosion-proof box (1).

2. The lithium battery drop test device of claim 1, characterized in that: the clamping device (11) comprises a shell, an electric push rod (111) is fixedly mounted at the center of the top of an inner cavity of the shell, the output end of the electric push rod (111) is fixedly connected with the top of a connecting plate (112), the left side and the right side of the bottom of the connecting plate (112) are fixedly connected with a sliding plate (114) through connecting rods (113), the bottom of the sliding plate (114) is movably connected with movable rods through connecting lugs, one side, far away from the sliding plate (114), of each movable rod is fixedly connected with a movable block (115), and a clamping plate (117) is fixedly mounted on one side, opposite to the movable block (115).

3. The lithium battery drop test device of claim 2, characterized in that: the top of the connecting plate (112) is fixedly connected with the bottom of the inner cavity of the shell through a spring (116).

4. The lithium battery drop test device of claim 2, characterized in that: the bottom of the inner cavity of the shell is provided with a sliding rail matched with the moving block (115), and the moving block (115) is connected with the bottom of the inner cavity of the shell in a sliding mode through the sliding rail.

5. The lithium battery drop test device of claim 2, characterized in that: the shell is of a concave structure, a groove matched with the sliding plate (114) is formed in the side wall of the inner cavity of the shell, and the sliding plate (114) is in sliding connection with the side wall of the inner cavity of the shell through the groove.

6. The lithium battery drop test device of claim 1, characterized in that: the right side wall of the explosion-proof box (1) is fixedly provided with a measuring rod (9), the top of the measuring rod (9) is fixedly connected with the bottom of the supporting plate (8), scale marks are arranged on the measuring rod (9), and the right side of the fixing plate (4) is sleeved on the measuring rod (9).

7. The lithium battery drop test device of claim 1, characterized in that: the bottom center of the explosion-proof box (1) corresponds to the detection port (2) and the clamping device (11).