CN219172164U

CN219172164U - Battery pack locking mechanism for small space

Info

Publication number: CN219172164U
Application number: CN202223396431.3U
Authority: CN
Inventors: 姚宇龙; 胡永榜; 牟东
Original assignee: Suzhou Hanteng New Energy Technology Co ltd
Current assignee: Suzhou Hanteng New Energy Technology Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-13
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to the technical field of electric automobiles, in particular to a battery pack locking mechanism for a small space, which comprises a fixed seat, a locking block and a stop block; the locking block is rotatably arranged on the fixed seat and is used for locking a locking shaft of the battery pack; the stop block is rotatably arranged on the fixed seat and used for locking the locking block. The utility model adopts the structure arrangement, plays a role in locking the lock shaft of the battery pack through the locking block, and plays a role in locking the locking block through the stop block, so that the purpose that the battery pack is fixed on the bracket is achieved, and the battery pack locking device is simple in structure, low in cost and better in locking effect.

Description

Battery pack locking mechanism for small space

Technical Field

The utility model relates to the technical field of electric automobiles, in particular to a battery pack locking mechanism for a small space.

Background

The existing battery pack arrangement mode of the electric vehicle is generally divided into a fixed type and a replaceable type, wherein the fixed type battery pack is generally fixed on the vehicle, and the vehicle is directly used as a charging object during charging; the replaceable battery pack is generally fixed on a bracket of the vehicle in a movable mounting manner, and the battery pack can be removed for independent replacement or charging operation, and is mounted on the vehicle after the replaced battery pack is charged.

At present, the replacing mode of the battery pack generally comprises various means such as manual and automatic, no matter which means, when the battery pack is mounted on a bracket of a vehicle, the bracket needs to lock the battery pack on the bracket, for example, a lock base and a locking mechanism with the bulletin number of CN213705146U, the lock base comprises a base body and a lock tongue, the lock tongue is rotatably arranged on the base body and is switched between a locking state and an unlocking state, so that a lock shaft can be separated from or enter a locking groove, when the lock is locked, the elasticity of a spring can enable the lock shaft to prop against the lock tongue, but vibration in the running process of the vehicle can cause the lock shaft to shake in the locking groove easily, so that the connection part of the battery pack and the vehicle is loose to cause unstable voltage, and excessive vibration can also cause the lock shaft to deviate from the locking groove.

Thus, there is room for improvement in the art.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a battery pack locking mechanism for a small space, which effectively solves the problem that a locking shaft shakes up and down and left and right in a locking groove due to vibration in the running process of a vehicle, so that the voltage is unstable.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the battery pack locking mechanism for the small space comprises a fixed seat, a locking block and a stop block; the locking block is rotatably arranged on the fixed seat and is used for locking a locking shaft of the battery pack; the stop block is rotatably arranged on the fixed seat and used for locking the locking block.

According to the scheme, the locking block is rotatably arranged on the fixing base through the first rotating piece, the stop block is rotatably arranged on the fixing base through the second rotating piece, the locking block is provided with the first positioning column, the first torsion spring is arranged between the first positioning column and the fixing base, the stop block is provided with the second positioning column, and the second torsion spring is arranged between the second positioning column and the fixing base.

According to the scheme, the first end of the locking block is provided with the bayonet part for locking the lock shaft, and the second end of the locking block is provided with the clamping groove part which is matched with the stop block for locking.

According to the scheme, the first end of the stop block is provided with the clamping part which is used for being matched and locked with the clamping groove part, and the second end of the stop block is provided with the handle part.

According to the scheme, one side of the locking block, which is close to the stop block, is provided with the arc-shaped outer edge part, one side of the stop block, which is close to the locking block, is provided with the inclined plane outer edge part, and the arc-shaped outer edge part is matched with the inclined plane outer edge part in a propping way.

According to the scheme, the fixing seat is provided with the stop block for limiting the locking block and the stop block.

According to the scheme, the locking device further comprises an unlocking device, and the unlocking device is matched with the handle part of the stop block.

The utility model has the beneficial effects that:

the utility model adopts the structure arrangement, plays a role in locking the lock shaft of the battery pack through the locking block, and plays a role in locking the locking block through the stop block, so that the purpose that the battery pack is fixed on the bracket is achieved, and the battery pack locking device is simple in structure, low in cost and better in locking effect.

Drawings

FIG. 1 is a schematic view of a locking mechanism of the present utility model;

FIG. 2 is an assembled schematic view of the locking mechanism and unlocking device of the present utility model;

FIG. 3 is a schematic view of a battery pack of the present utility model;

fig. 4 is a schematic view of the battery pack of the present utility model secured to a bracket.

In the figure: 1. a fixing seat; 11. a stop block; 2. a locking piece; 21. a clamping part; 22. an arc-shaped outer edge portion; 23. a clamping groove part; 3. a stopper; 31. a handle portion; 32. an inclined surface outer edge portion; 33. a fastening part; 4. a first rotating member; 5. a second rotating member; 6. unlocking means; 7. a locking mechanism; 8. a bracket; 9. a battery pack; 91. a lock shaft; 92. a flange portion.

Detailed Description

The technical scheme of the utility model is described below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 4, a battery pack locking mechanism for a small space according to the present utility model, wherein a locking mechanism 7 comprises a fixing base 1, a locking piece 2 and a stopper 3; the locking block 2 is rotatably arranged on the fixed seat 1, and the locking block 2 is used for locking a locking shaft 91 of the battery pack 9; the stop block 3 is rotatably installed on the fixed seat 1, and the stop block 3 is used for locking the locking block 2. The above constitutes the basic structure of the present utility model.

The utility model adopts the structure arrangement, the locking effect of the locking shaft 91 of the battery pack 9 is achieved through the locking block 2, and the locking effect of the locking block 2 is achieved through the stop block 3, so that the purpose that the battery pack 9 is fixed on the bracket 8 is achieved, and the structure is simple, and the cost is low.

In this embodiment, the locking piece 2 is rotatably mounted on the fixing base 1 through the first rotating member 4, the stop block 3 is rotatably mounted on the fixing base 1 through the second rotating member 5, a first positioning column is arranged on the locking piece 2, a first torsion spring is arranged between the first positioning column and the fixing base 1, a second positioning column is arranged on the stop block 3, and a second torsion spring is arranged between the second positioning column and the fixing base 1.

When the locking mechanism 7 is in a released state, the first torsion spring is in a stressed state, the second torsion spring is in an unstressed state, and when the locking block 2 locks the column lock shaft 91 and rotates to a locking state, the first torsion spring is in a stressed state, and the second torsion spring is in a stressed state; the first rotating piece 4 and the second rotating piece 5 can rotate, only the locking piece 2 and the stop block 3 can rotate relative to the fixed seat 1, and certainly, the locking piece can also be a circular fixed rod, and the locking piece 2 and the stop block 3 can rotate relative to the fixed seat 1 only by designing circular through holes in the locking piece 2 and the stop block 3 to be slightly larger than the diameter of the circular fixed rod.

In this embodiment, a first end of the lock block 2 is provided with a bayonet portion 21 for locking the lock shaft 91, and a second end of the lock block 2 is provided with a slot portion 23 for locking with the stopper 3. With such a configuration, the lock shaft 91 is locked by the locking portion 21, and the lock shaft 91 of the battery pack 9 is locked by the lock block 2.

It should be noted that, the cross section of the locking piece 2 preferably adopts a Z-shaped structure, a gap is formed between the first end of the locking piece 2 provided with the clamping portion 21 and the fixing seat 1, and the second end of the locking piece 2 provided with the clamping groove portion 23 is attached to the fixing seat 1, so that the purpose of the arrangement is mainly used for locking the flange portion 92 of the lock shaft 91, the size of the gap is matched with the thickness of the flange portion 92, the flange portion 92 can be accommodated, the flange portion 92 can be moved in and out, the flange portion 92 can be limited to swing back and forth, the opening of the clamping portion 21 is larger than the diameter of the lock shaft 91 and smaller than the diameter of the flange portion 92. In addition, the clamping part 21 is preferably an arc clamping part, so that the lock shaft 91 can conveniently enter and exit, meanwhile, the lock shaft 91 can drive the lock block 2 to rotate when being pushed in, and the lock shaft 91 can be prevented from swinging up and down and left and right when the lock shaft 91 is locked after the lock block 2 is locked by the stop block 3.

In this embodiment, a first end of the stopper 3 is provided with a locking portion 33 for locking with the locking groove 23, and a second end of the stopper 3 is provided with a handle portion 31. With such a configuration, the locking portion 33 is engaged with the inside of the locking groove portion 23, thereby achieving the locking effect of the lock block 2 by the stopper 3.

It should be noted that, the locking groove portion 23 and the locking portion 33 preferably have non-circular structures, such as triangular structures, square structures, etc., so that when the locking portion 33 is engaged in the locking groove portion 23, the locking piece 2 is completely locked, and the locking piece 2 is prevented from swinging due to shaking. In addition, the shape of the stop block 3 preferably adopts an L-shaped structure, and under the action of the first rotating member 4, the lever principle is achieved, that is, the lock block 2 can be driven to move up and down through the unlocking device 6, so that the lock block 2 is driven to rotate.

In this embodiment, an arc-shaped outer edge portion 22 is disposed on a side, close to the stop block 3, of the lock block 2, an inclined surface outer edge portion 32 is disposed on a side, close to the lock block 2, of the stop block 3, and the arc-shaped outer edge portion 22 is in abutting fit with the inclined surface outer edge portion 32. With such a structural arrangement, under the limiting effect of the first rotating member 4 and the second rotating member 5, when the locking piece 2 rotates, the stop block 3 can be driven to synchronously rotate.

It should be noted that, the shape of the lock block 2 preferably adopts an elliptical structure, and the lock block 2 and the stop block 3 change with the rotation of the lock block 2, so that the lock block 2 drives the stop block 3 to rotate.

In this embodiment, the fixing base 1 is provided with a stop block 11 for limiting the locking block 2 and the stop block 3. With such a structural arrangement, the stopper 11 serves to limit the lock block 2 and the stopper 3, and the lock block 2 and the stopper 3 are prevented from swinging back and forth along the first rotary member 4 and the second rotary member 5.

The gap between the stop block 11 and the fixing seat 1 is matched with the thicknesses of the locking block 2 and the stop block 3, so that the locking block 2 and the stop block 3 can rotate and the locking block 2 and the stop block 3 can be limited to swing back and forth.

In the present embodiment, an unlocking means 6 is further included, the unlocking means 6 being engaged with the handle portion 31 of the stopper 3. With such a structural arrangement, during unlocking, the handle portion 31 is driven to rotate by the unlocking device 6, so that the locking of the locking piece 2 by the stop block 3 is lost.

It should be noted that the unlocking device 6 may be either manual or automatic, such as a solenoid valve structure or other structures, and the unlocking device 6 may simultaneously drive the stop blocks 3 on the plurality of locking mechanisms 7 to act.

The working principle of the utility model is as follows:

when the locking mechanism 7 is in a released state, as shown in fig. 1, the first torsion spring is stressed, the second torsion spring is not stressed, the battery pack 9 is manually pushed, namely, the lock shaft 91 is pushed into the clamping part 21, the resistance of the first torsion spring is overcome under the action of force, the locking piece 2 is driven to rotate, meanwhile, the locking piece 2 drives the stop block 3 to rotate, when the locking piece 2 is locked by the stop block 3 until the clamping groove part 23 is matched and buckled with the clamping part 33, at the moment, the locking mechanism 7 is locked at a dead point position, and meanwhile, the battery pack 9 is locked under the action of torsion of the first torsion spring and the second torsion spring; that is, as the rotation of the locking block 2 and the stop block 3 changes, the first torsion spring and the second torsion spring are controlled to switch between stressed and unstressed;

when the locking mechanism 7 is in the locked state, as shown in fig. 2, the degree of freedom in the front-rear direction of the battery pack 9 is locked by the engagement of the locking portion 21 with the flange portion 92 of the lock shaft 91, and the degree of freedom in the up-down, left-right direction of the battery pack 9 is locked by the locking of the locking piece 2 by the stopper 3; compared with the prior art that only four degrees of freedom (only the degrees of freedom in the up-down, left-right directions) of the battery pack 9 can be controlled, the six degrees of freedom (the degrees of freedom in the up-down, left-right directions) of the battery pack 9 can be controlled, and the locking effect is better;

when the locking mechanism 7 is in the locked state, unlocking can be realized only by overcoming the resistance of the second torsion spring through the unlocking device 6, and the battery pack 9 is detached after returning to the unlocked state.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative, not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are all within the scope of the present utility model.

Claims

1. A battery package locking mechanism for little space, its characterized in that:

the locking mechanism (7) comprises a fixed seat (1), a locking block (2) and a stop block (3);

the locking block (2) is rotatably arranged on the fixed seat (1), and the locking block (2) is used for locking a lock shaft (91) of the battery pack (9);

the stop block (3) is rotatably arranged on the fixed seat (1), and the stop block (3) is used for locking the locking block (2).

2. A battery pack locking mechanism for small spaces as claimed in claim 1, wherein: the locking piece (2) is rotatably mounted on the fixing seat (1) through the first rotating piece (4), the stop block (3) is rotatably mounted on the fixing seat (1) through the second rotating piece (5), a first positioning column is arranged on the locking piece (2), a first torsion spring is arranged between the first positioning column and the fixing seat (1), a second positioning column is arranged on the stop block (3), and a second torsion spring is arranged between the second positioning column and the fixing seat (1).

3. A battery pack locking mechanism for small spaces as claimed in claim 2, wherein: the first end of the locking block (2) is provided with a bayonet part (21) for locking the lock shaft (91), and the second end of the locking block (2) is provided with a clamping groove part (23) which is matched and locked with the stop block (3).

4. A battery pack locking mechanism for small spaces as claimed in claim 2, wherein: the first end of the stop block (3) is provided with a clamping part (33) for being matched and locked with the clamping groove part (23), and the second end of the stop block (3) is provided with a handle part (31).

5. A battery pack locking mechanism for small spaces as claimed in claim 2, wherein: the locking piece (2) is close to one side of the locking piece (3) and is provided with an arc-shaped outer edge part (22), one side of the locking piece (3) close to the locking piece (2) is provided with an inclined plane outer edge part (32), and the arc-shaped outer edge part (22) is matched with the inclined plane outer edge part (32) in a propping mode.

6. A battery pack locking mechanism for small spaces as claimed in claim 1, wherein: the fixing seat (1) is provided with a stop block (11) for limiting the locking block (2) and the stop block (3).

7. A battery pack locking mechanism for small spaces as claimed in claim 1, wherein: the device also comprises an unlocking device (6), wherein the unlocking device (6) is matched with a handle part (31) of the stop block (3).