CN219180676U - Lithium battery protection board of electric vehicle - Google Patents

Abstract

The utility model relates to the technical field of lithium battery protection boards, in particular to an electric vehicle lithium battery protection board, which comprises a board body, wherein a mounting groove is formed in the board body, a mounting block for placing a lithium battery is arranged in the mounting groove, a cover plate is arranged on the mounting block through threads, vibration force generated by bumping in the running process of an electric vehicle is transmitted to a pressing rod and is enabled to move downwards, the pressing rod extrudes a first spring through a guide plate, the elastic force of the first spring is utilized to enable the guide plate to drive the pressing rod to move towards an initial state, so that shock absorption protection of the mounting block is realized, a rotating shaft is enabled to drive a driving gear to rotate through rotating the rotating plate, the driving gear drives a driven rack to horizontally move and enter a limiting cavity, the driven rack drives a sliding block to horizontally move, the sliding block and the mounting block are in movable counterbalance, and bolt fixing is carried out on the rotating plate through a threaded hole, so that rotation of the rotating shaft cannot occur due to external force.

Description

Lithium battery protection board of electric vehicle

Technical Field

The utility model relates to the technical field of lithium battery protection plates, in particular to an electric vehicle lithium battery protection plate.

Background

The battery protection board, as the name implies, is mainly aimed at a chargeable and protective integrated circuit board, and the lithium battery needs protection and is determined by its own characteristics. Because the material of the lithium battery determines that the lithium battery cannot be overcharged, overdischarged, overcurrent, short-circuited and ultrahigh-temperature charged and discharged, the lithium battery assembly always appears along with a protective plate with a sampling resistor and a current protector.

The lithium battery protection board that is put forward by chinese publication No. CN212113785U, including protection board main part and mount pad, the mount pad top is equipped with the chamber that holds that is used for holding lithium battery group. According to the technical scheme, the L-shaped movable plate is pressed and fixed through the limiting plugboard, so that the mounting seat is fixed, but because the electric vehicle jolts in the running process, the limiting plugboard is loosely inserted and can be influenced by jolts, a certain amplitude of movement can occur, friction is generated between the limiting plugboard and the L-shaped movable plate, the service lives of the limiting plugboard and the L-shaped movable plate are negatively influenced, and the L-shaped movable plate is not provided with a reset mechanism and can only be reset through a manual work, so that after the limiting plugboard is worn, the movable space of the limiting plugboard is larger, the limiting plugboard can move more easily, and if the L-shaped movable plate is too tightly inserted, the L-shaped movable plate is difficult to disassemble and the working efficiency of maintenance personnel is influenced.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, bump can occur in the running process of an electric vehicle, the limit plugboard is loosely inserted and can be influenced by the bump, and if an L-shaped movable plate is too tightly inserted, the disassembly is difficult.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an electric motor car lithium battery protection shield, includes the plate body, set up the mounting groove on the plate body, be provided with the installation piece that is used for placing the lithium cell in the mounting groove, install the apron through the screw thread on the installation piece, the buffer tank has been seted up to the mounting groove bottom, fixedly connected with on the installation piece can extend to the depression bar in the buffer tank, set up the guide way on the buffer tank inner wall, be provided with the deflector in the guide way, the welding has first spring between deflector and the buffer tank;

the plate body is provided with a fixing mechanism for carrying out buckle fixing on the mounting block.

Preferably, the guide grooves are longitudinally formed in the inner walls of the two sides of the buffer groove, and the guide plates are longitudinally sleeved in the guide grooves in a sliding mode.

Preferably, the fixed establishment is including setting up the chamber of accomodating that is linked together in the plate body and with the mounting groove, be provided with the pivot that extends to plate body top position in accomodating the chamber, fixed cover is equipped with the drive gear that is arranged in accomodating the chamber in the pivot, the spout has been seted up to the bottom position in accomodating the chamber, be provided with looks welded slider and second spring in the spout, fixedly connected with is connected with the driven rack of drive gear meshing on the slider, set up the spacing chamber that corresponds the setting with driven rack on the installation piece.

Preferably, the rotating shaft is longitudinally rotatably installed on the plate body through a bearing, one end of the rotating shaft extending to the upper side of the plate body is fixedly connected with a rotating plate, and a threaded hole for fixing bolts is formed between the rotating plate and the plate body.

Preferably, the sliding groove is horizontally arranged, the sliding block is horizontally sleeved in the sliding groove in a sliding manner, and the second spring is horizontally welded at the outer end position of the sliding groove.

Preferably, the limiting cavity is horizontally arranged at the lower end of the mounting block, and the driven rack can be horizontally sleeved in the limiting cavity in a sliding mode.

Compared with the prior art, the utility model has the following advantages:

1. the vibration force generated by jolt in the running process of the electric vehicle is transmitted to the compression bar and moves downwards, the compression bar extrudes the first spring through the guide plate, the guide plate drives the compression bar to move towards the initial state by utilizing the elastic force of the first spring, and the compression bar and the vibration force form a resistance force, so that the vibration protection of the mounting block is realized, and the negative influence of the vibration force on the lithium battery is reduced.

2. According to the utility model, the rotating plate is rotated, so that the rotating shaft drives the driving gear to rotate, the driving gear drives the driven rack to horizontally move and enter the limiting cavity, the driven rack drives the sliding block to horizontally move, the sliding block is movably propped against the mounting block, and the rotating plate is bolted through the threaded hole, so that the rotating shaft cannot rotate due to the action of external force, in this way, the dismounting work of the mounting block can be realized by only dismounting the bolt, and the improvement of the working efficiency of maintenance personnel is facilitated.

Drawings

Fig. 1 is a schematic structural view of a lithium battery protection plate for an electric vehicle according to the present utility model;

fig. 2 is a schematic diagram of a partial enlarged structure of an electric vehicle lithium battery protection board according to the present utility model;

fig. 3 is a schematic diagram of a connection structure of a driven rack, a driving gear and a rotating shaft of the lithium battery protection plate of the electric vehicle.

In the figure: 1. a plate body; 2. a mounting groove; 3. a mounting block; 4. a cover plate; 5. a buffer tank; 6. a compression bar; 7. a guide groove; 8. a guide plate; 9. a first spring; 10. a storage chamber; 11. a rotating shaft; 12. a drive gear; 13. a chute; 14. a slide block; 15. a second spring; 16. a driven rack; 17. and a limiting cavity.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, an electric vehicle lithium battery protection board comprises a board body 1, wherein a mounting groove 2 is formed in the board body 1, a mounting block 3 for placing a lithium battery is arranged in the mounting groove 2, and the following description is provided: the installation block 3 is internally provided with a soft cushion which can be propped against the lithium battery, thereby being beneficial to improving the safety of the lithium battery, and the installation block 3 is provided with a cover plate 4 through threads;

the bottom end of the mounting groove 2 is provided with a buffer groove 5, the mounting block 3 is fixedly connected with a compression bar 6 which can extend into the buffer groove 5, the inner walls at two sides of the buffer groove 5 are longitudinally provided with guide grooves 7, guide plates 8 are longitudinally sleeved in the guide grooves 7 in a sliding manner, first springs 9 are welded between the guide plates 8 and the buffer groove 5, and the guide plates 8 drive the compression bar 6 to move towards an initial state by utilizing the elastic force of the first springs 9, so that the compression bar 6 acts on the mounting block 3 to provide buffer protection for the mounting block 3;

the fixing mechanism used for carrying out buckle fixing on the installation block 3 is arranged in the plate body 1, and the stability of the installation block 3 can be guaranteed through the fixing mechanism, so that the stability of the lithium battery during running of the electric vehicle is guaranteed, and when maintenance is needed, the installation block 3 can be dismounted only by dismounting the bolts, and then the rotating plate is rotated;

further description: the fixing mechanism comprises a containing cavity 10 which is arranged on the plate body 1 and is communicated with the mounting groove 2, a rotating shaft 11 which extends to the position above the plate body 1 is arranged in the containing cavity 10, the rotating shaft 11 is longitudinally and rotatably arranged on the plate body 1 through a bearing, one end of the rotating shaft 11 which extends to the position above the plate body 1 is fixedly connected with a rotating plate, a threaded hole for fixing bolts is formed between the rotating plate and the plate body 1, the rotating plate is fixed through the threaded hole by bolts, so that the rotating shaft 11 cannot rotate, and the stability of the fixing mechanism is improved;

the driving gear 12 in the storage cavity 10 is fixedly sleeved on the rotating shaft 11, the sliding groove 13 is horizontally arranged at the bottom end position in the storage cavity 10, the sliding groove 13 is internally provided with a sliding block 14 and a second spring 15 which are welded with each other, the sliding block 14 is horizontally sleeved in the sliding groove 13 in a sliding manner, and the second spring 15 is horizontally welded at the outer end position of the sliding groove 13, and the following needs to be described: the sliding block 14 can be movably propped against the lower end of the mounting block 3, so that the lower end of the mounting block 3 is clamped and fixed;

the driven rack 16 which is meshed with the driving gear 12 is fixedly connected to the sliding block 14, the limiting cavity 17 which is arranged corresponding to the driven rack 16 is formed in the mounting block 3, the limiting cavity 17 is horizontally formed in the lower end position of the mounting block 3, the driven rack 16 can be horizontally sleeved in the limiting cavity 17 in a sliding mode, the clamping and fixing of the mounting block 3 are achieved through the driven rack 16 and the limiting cavity 17, the clamping and fixing of the mounting block 3 are achieved through the matching sliding block 14, and the stability of the mounting block 3 is improved.

The utility model can explain its functional principle by the following modes of operation:

the lithium battery is placed in the installation block 3, the cover plate 4 is in threaded connection with the installation block 3, the installation block 3 is placed in the installation groove 2, the pressure bar 6 enters the buffer groove 5 and is movably propped against the guide plate 8, when the pressure bar 6 is affected by vibration force generated by bumping of the electric vehicle and moves downwards, the pressure bar 6 drives the guide plate 8 to move downwards in the guide groove 7, the first spring 9 is extruded, and the guide plate 8 drives the pressure bar 6 to move vertically towards an initial state under the elastic force of the first spring 9, so that the installation block 3 is buffered and protected;

the rotating plate is rotated, so that the rotating shaft 11 rotates, the rotating shaft 11 drives the driving gear 12 to rotate, the driving gear 12 drives the driven rack 16 to horizontally move and enter the limiting cavity 17, the driven rack 16 drives the sliding block 14 to horizontally move in the sliding groove 13, the second spring 15 is stretched, the sliding block 14 and the mounting block 3 are movably abutted, and the rotating plate is fixed by bolts through threaded holes, so that the mounting block 3 is fixedly mounted.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides an electric motor car lithium battery protection shield, includes plate body (1), its characterized in that, install groove (2) have been seted up on plate body (1), be provided with in install groove (2) and be used for placing installation piece (3) of lithium battery, install apron (4) through the screw thread on install piece (3), buffer tank (5) have been seted up to install groove (2) bottom, fixedly connected with on install piece (3) pressure bar (6) that can extend to in buffer tank (5), guide slot (7) have been seted up on the inner wall of buffer tank (5), be provided with deflector (8) in guide slot (7), the welding has first spring (9) between deflector (8) and buffer tank (5);

the plate body (1) is internally provided with a fixing mechanism for carrying out buckle fixing on the mounting block (3).

2. The lithium battery protection plate for the electric vehicle according to claim 1, wherein the guide grooves (7) are longitudinally formed in inner walls at two sides of the buffer groove (5), and the guide plates (8) are longitudinally sleeved in the guide grooves (7) in a sliding manner.

3. The lithium battery protection plate for the electric vehicle according to claim 1, characterized in that the fixing mechanism comprises a storage cavity (10) which is arranged on the plate body (1) and is communicated with the mounting groove (2), a rotating shaft (11) which extends to the position above the plate body (1) is arranged in the storage cavity (10), a driving gear (12) which is arranged in the storage cavity (10) is fixedly sleeved on the rotating shaft (11), a sliding groove (13) is formed in the position of the inner bottom end of the storage cavity (10), a sliding block (14) and a second spring (15) which are welded are arranged in the sliding groove (13), a driven rack (16) which is meshed and connected with the driving gear (12) are fixedly connected to the sliding block (14), and a limiting cavity (17) which is correspondingly arranged with the driven rack (16) is formed in the mounting block (3).

4. The lithium battery protection plate for the electric vehicle according to claim 3, wherein the rotating shaft (11) is longitudinally rotatably installed on the plate body (1) through a bearing, one end of the rotating shaft (11) extending to the upper portion of the plate body (1) is fixedly connected with a rotating plate, and a threaded hole for fixing bolts is formed between the rotating plate and the plate body (1).

5. The lithium battery protection plate for the electric vehicle according to claim 3, wherein the sliding groove (13) is horizontally opened, the sliding block (14) is horizontally sleeved in the sliding groove (13) in a sliding manner, and the second spring (15) is horizontally welded at the outer end position of the sliding groove (13).

6. The lithium battery protection plate for the electric vehicle according to claim 3, wherein the limiting cavity (17) is horizontally arranged at the lower end of the mounting block (3), and the driven rack (16) is horizontally slidably sleeved in the limiting cavity (17).

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