CN210719625U

CN210719625U - Lithium battery drop test device

Info

Publication number: CN210719625U
Application number: CN201922328120.5U
Authority: CN
Inventors: 恽旻
Original assignee: WUXI PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE
Current assignee: Wuxi Inspection And Certification Institute
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-06-09
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a lithium battery drop test device, which comprises a test box, a motor connected to the inner top wall of the test box, a lead screw driven by the motor, a nut seat matched with the lead screw, a plurality of support plates hinged on the nut seat, lithium batteries placed on the support plates, and a cylinder connected on the nut seat; the testing box is characterized in that a hard rubber plate is paved on the inner bottom wall of the testing box, a door is arranged on the side wall of the testing box, a piston rod of the air cylinder is connected with the supporting plate, and the piston rod of the air cylinder makes telescopic motion to control the supporting plate to be in a horizontal state or an inclined downward state. The utility model provides a lithium cell drop test device places the lithium cell on the layer board through putting in the mouth, opens the door and can take out the lithium cell that drops, and is comparatively convenient, and the piston rod of cylinder returns and to contract and to make the layer board rotate downwards to make the lithium cell automatically drop to the stereoplasm rubber slab on, and fall highly can nimble control, practiced thrift the cost of labor, factor of safety is high, has improved efficiency of software testing.

Description

Lithium battery drop test device

Technical Field

The utility model relates to a photovoltaic product technology field especially relates to a lithium cell drop test device.

Background

Photovoltaic products are in a wide variety, such as photovoltaic glass, lithium ion batteries, inverters, and the like. Among them, a lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. The lithium ion battery has the characteristics of high specific energy, long cycle life, environmental friendliness and the like, and is a battery system with great development potential.

Before the lithium battery is put into use, various performances such as sealing performance, storage performance, falling performance and the like need to be detected, wherein the falling performance test method is that the fully charged lithium battery is manually fallen onto the hard rubber plate from a certain high position, and then the electrical performance, the appearance and the like of the lithium battery are detected, so that the manual operation wastes time and labor, the efficiency is low, and the lithium battery is easy to be accidentally damaged.

In view of the above, there is a need for an improved drop test device for lithium batteries in the prior art to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to disclose a lithium cell drop test device places the lithium cell on the layer board through putting in the mouth, opens the door and can take out the lithium cell that drops, and is comparatively convenient, and the piston rod of cylinder returns and to return and to make the layer board rotate downwards to make the lithium cell automatic drop to the stereoplasm rubber slab, and fall highly can nimble control, practice thrift the cost of labor, factor of safety is high, improves efficiency of software testing.

In order to achieve the purpose, the utility model provides a lithium battery drop test device, which comprises a test box, a motor connected on the top wall in the test box, a lead screw driven by the motor, a nut seat matched with the lead screw, a plurality of support plates hinged on the nut seat, a lithium battery placed on the support plates, and a cylinder connected on the nut seat; the testing box is characterized in that a hard rubber plate is paved on the inner bottom wall of the testing box, a door is arranged on the side wall of the testing box, a piston rod of the air cylinder is connected with the supporting plate, and the piston rod of the air cylinder makes telescopic motion to control the supporting plate to be in a horizontal state or an inclined downward state.

In some embodiments, the nut seat is a regular quadrangle, and the four support plates are respectively hinged on four sides of the nut seat.

In some embodiments, the cylinder further comprises a swash plate connected to the nut block, and the cylinder is mounted on the swash plate.

In some embodiments, the top wall of the test box is provided with a plurality of putting-in openings, and the putting-in openings are positioned right above the supporting plate.

In some embodiments, the door is a glass door.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a lithium cell drop test device places the lithium cell on the layer board through putting in the mouth, opens the door and can take out the lithium cell that drops, and is comparatively convenient, and the piston rod of cylinder returns and to contract and to make the layer board rotate downwards to make the lithium cell automatically drop to the stereoplasm rubber slab on, and fall highly can nimble control, practiced thrift the cost of labor, factor of safety is high, has improved efficiency of software testing.

Drawings

Fig. 1 is a schematic structural view of a lithium battery drop test device shown in the present invention;

fig. 2 is a schematic diagram of an internal structure of a lithium battery drop test device shown in the present invention;

fig. 3 is a schematic view of the connection of the nut holder and the carrier shown in fig. 2.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

As shown in fig. 1-3, the lithium battery drop test device comprises a test box 1, a motor 3 connected to the inner top wall of the test box 1, a lead screw 31 driven by the motor 3, and a nut seat 5 matched with the lead screw 31. The motor 3 drives the screw rod 31 to rotate, and the nut seat 5 makes linear lifting motion on the screw rod 31, so that the falling height can be flexibly adjusted, and the test is carried out in the test box 1, and the safety factor is high.

The nut seat structure is characterized by further comprising a plurality of supporting plates 6 hinged to the nut seat 5, in the embodiment, the nut seat 5 is a regular quadrangle, and the four supporting plates 6 are respectively hinged to four sides of the nut seat 5. The lithium battery 4 is placed on a pallet 6 so that the lithium battery 4 can be thrown down from several different directions for testing.

The hydraulic cylinder further comprises an air cylinder 7 connected to the nut seat 5, and in the embodiment, the hydraulic cylinder further comprises a sloping plate 8 connected to the nut seat 5, wherein the nut seat 5 and the sloping plate 8 are of an integrated structure. The cylinder block of the cylinder 7 is mounted on a swash plate 8. In the present embodiment, the number of the cylinders 7 is four.

The piston rod 71 of the air cylinder 7 is connected with the supporting plate 6, and the piston rod 71 of the air cylinder 7 makes telescopic motion to control the supporting plate 6 to be in a horizontal state or an inclined downward state.

And a hard rubber plate 9 is paved on the inner bottom wall of the test box 1. Four input ports 10 are seted up to test box 1 roof, input port 10 is located layer board 6 directly over, is convenient for put lithium cell 4 on layer board 6 through input port 10. The side wall of the test box 1 is provided with a door 2, so that the lithium battery 4 falling on the hard rubber plate 9 can be taken out conveniently. Door 2 is the glass door, is convenient for observe lithium cell 4 process of dropping.

The use method of the lithium battery drop test device comprises the following steps: the motor 3 drives the screw rod 31 to rotate, the nut seat 5 linearly moves on the screw rod 31 to be close to the putting-in opening 10, the motor 3 stops working, the lithium battery 4 is put on the supporting plate 6 through the putting-in opening 10, the motor 3 drives the screw rod 31 to reversely rotate, the nut seat 5 linearly moves on the screw rod 31 to descend to a distance of N meters, for example, about 1 meter from the hard rubber plate 9, the motor 3 stops working, the piston rod 71 of the air cylinder 7 retracts, the supporting plate 6 rotates downwards, the lithium battery 4 automatically drops on the hard rubber plate 9 from the supporting plate 6, the piston rod 71 of the air cylinder 7 extends, the supporting plate 6 is in a horizontal state again, the door 2 is opened, the lithium battery 4 is taken out, the operation is repeated, the lithium battery 4 is put on another supporting plate 6, and after a drop test is finished, the electrical performance and the appearance of the lithium battery 4 are.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A lithium battery drop test device is characterized by comprising a test box (1), a motor (3) connected to the inner top wall of the test box (1), a screw rod (31) driven by the motor (3), a nut seat (5) matched with the screw rod (31), a plurality of supporting plates (6) hinged on the nut seat (5), lithium batteries (4) placed on the supporting plates (6), and an air cylinder (7) connected to the nut seat (5); hard rubber plate (9) have been laid on the diapire in test box (1), test box (1) lateral wall is equipped with door (2), layer board (6) are connected in piston rod (71) of cylinder (7), telescopic motion is made in piston rod (71) of cylinder (7) with control layer board (6) and be horizontal state or slope down state.

2. The lithium battery drop test device according to claim 1, wherein the nut seat (5) is a regular quadrangle, and the four support plates (6) are respectively hinged to four sides of the nut seat (5).

3. The lithium battery drop test device according to claim 2, further comprising a sloping plate (8) connected to the nut seat (5), wherein the cylinder (7) is mounted on the sloping plate (8).

4. The lithium battery drop test device according to claim 1, wherein the top wall of the test box (1) is provided with a plurality of input ports (10), and the input ports (10) are positioned right above the supporting plate (6).

5. The lithium battery drop test device according to claim 1, wherein the door (2) is a glass door.