CN215717855U

CN215717855U - Battery pack lock

Info

Publication number: CN215717855U
Application number: CN202120810641.9U
Authority: CN
Inventors: 丁瑞荣; 彭正荣
Original assignee: Changzhou Wujin Huarui Electronic Co Ltd
Current assignee: Changzhou Wujin Huarui Electronic Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2022-02-01
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to the technical field of battery packs, in particular to a battery pack lock which comprises a lock hook, a position switch, a resistor and a motor push-pull mechanism, wherein the lock hook is rotatably arranged in a lock shell and is provided with a torsion spring; the position switch is arranged on one side of the lock hook; the blocking iron is rotatably arranged in the lock shell, and one end of the blocking iron is in a hook shape and is matched with the lock hook; the motor push-pull mechanism comprises a push-pull shaft, a transmission torsion spring, a swing gear, a gear set, a worm and gear mechanism and a motor, the other end of the iron resistor is connected with the push-pull shaft, the transmission torsion spring is connected with the swing gear, the swing gear is a part of gear and is connected with the worm and gear mechanism through the gear set, and the worm and gear mechanism is driven by the motor. The utility model ensures that the motor can not be locked, reduces the occupied space of the structure and reduces the cost.

Description

Battery pack lock

Technical Field

The utility model relates to the technical field of battery packs, in particular to a battery pack lock.

Background

In order to obtain longer driving range, the electric automobile needs to be charged or the battery pack needs to be replaced. And have battery package lock between battery package and the electric automobile, current battery package lock occupation space is big, and the locked rotor appears in the motor easily moreover.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems that the battery pack lock occupies large space and the motor is easy to cause locked rotation in the related technology, and provides the battery pack lock, wherein the swing gear is a partial gear, and when the swing gear rotates to the part without teeth, the fourth gear is separated from the swing gear to realize idle rotation, so that the motor is ensured not to cause locked rotation; the elasticity when the sear goes into the lock to and hold the motor power of unlocking when the latch hook resistance is too big in the unlocking process in the torsional spring, treat the automatic unblock of latch hook resistance release, need not to carry out the operation of unblanking once more, need not to use two pressure springs to realize, consequently, structure occupation space reduces, and the cost is reduced.

In order to solve the technical problems, the utility model is realized by the following technical scheme: a battery pack lock, comprising:

the lock hook is rotatably arranged in the lock shell and is provided with a torsion spring;

the position switch is arranged on one side of the lock hook;

the blocking iron is rotatably arranged in the lock shell, and one end of the blocking iron is in a hook shape and is matched with the lock hook;

the motor push-pull mechanism comprises a push-pull shaft, a transmission torsion spring, a swinging gear, a gear set, a worm and gear mechanism and a motor, wherein the other end of the iron resistor is connected with the push-pull shaft, the transmission torsion spring is connected with the swinging gear, the swinging gear is a part of gear and is connected with the worm and gear mechanism through the gear set, and the worm and gear mechanism is driven by the motor.

Preferably, the push-pull shaft is provided with a waterproof sleeve.

Preferably, the worm and gear mechanism comprises a worm and a worm wheel, the worm wheel comprises a first gear meshed with the worm and a second gear meshed with the gear set, and the first gear and the second gear rotate coaxially.

Preferably, the gear set comprises a third gear and a fourth gear which rotate coaxially, the third gear is meshed with the second gear, and the fourth gear is meshed with the swinging gear.

Preferably, one end of the transmission torsion spring is mounted on a rotating shaft of the gear set, and the other end of the transmission torsion spring is connected with the push-pull shaft.

Preferably, a through hole is formed in one end of the push-pull shaft, and the other end of the stop iron penetrates through the through hole in the push-pull shaft.

Compared with the prior art, the utility model has the beneficial effects that: the swing gear is a partial gear, when the part without teeth of the swing gear is rotated, the fourth gear is separated from the swing gear to realize idle rotation, so that the motor is ensured not to be locked; the elasticity when the sear goes into the lock to and hold the motor power of unlocking when the latch hook resistance is too big in the unlocking process in the torsional spring, treat the automatic unblock of latch hook resistance release, need not to carry out the operation of unblanking once more, need not to use two pressure springs to realize, consequently, structure occupation space reduces, and the cost is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic view of the internal structure of the present invention.

In the figure:

1. the locking mechanism comprises a locking hook 2, a torsion spring 3, a position switch 4, a stop iron 5 and a push-pull shaft; 6. the device comprises a transmission torsion spring, 7, a swing gear, 8, a gear set, 9, a worm gear mechanism, 901, a worm, 902, a worm wheel, 10, a motor, 11, a waterproof sleeve, 12 and a lock shell.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 to 3, a battery pack lock comprises a lock hook 1, a position switch 3, a resistor 4 and a motor push-pull mechanism, wherein the lock hook 1 is rotatably installed in a lock case 12 through a rotating shaft, a torsion spring 2 is installed on the lock hook 1, specifically, the torsion spring 2 is sleeved on the rotating shaft of the lock hook 1, and one end of the torsion spring is connected with the lock hook 1; the position switch 3 is arranged on one side of the lock hook 1; the iron resistor 4 is rotatably arranged in the lock shell 12, and one end of the iron resistor 4 is in a hook shape and is matched with the hook shape at the front end of the lock hook 1; the motor push-pull mechanism comprises a push-pull shaft 5, a transmission torsion spring 6, a swing gear 7, a gear set 8, a worm and gear mechanism 9 and a motor 10, the other end of the iron resistor 4 is connected with the push-pull shaft 5, the transmission torsion spring 6 is connected with the swing gear 7, the swing gear 7 is a partial gear (namely, only the outer side of a partial circumference is provided with teeth, but not the whole circumference is provided with teeth), the swing gear 7 is connected with the worm and gear mechanism 9 through the gear set 8, and the worm and gear mechanism 9 is driven by the motor 10.

In one embodiment, a waterproof jacket 11 is mounted on the push-pull shaft 5.

In one embodiment, the worm gear mechanism 9 includes a worm 901 and a worm wheel 902, and the worm wheel 902 includes a first gear engaged with the worm 901 and a second gear engaged with the gear group 8, and the first gear and the second gear rotate coaxially.

In one embodiment, gear set 8 includes a third gear and a fourth gear that rotate coaxially, the third gear meshing with the second gear, and the fourth gear meshing with wobble gear 7.

In one embodiment, the transmission torsion spring 6 has one end mounted on the rotation shaft of the gear set 8 and the other end connected to the push-pull shaft 5, so that the push-pull shaft 5 can be driven by the motor 10 to extend or retract.

In one embodiment, a through hole is formed at one end of the push-pull shaft 5, and the other end of the blocking iron 4 penetrates through the through hole on the push-pull shaft 5, so that the blocking iron 4 can rotate under the driving of the push-pull shaft 5, thereby realizing the engagement or disengagement with the locking hook 1.

The specific working process is as follows:

when the lock is unlocked, the motor 10 rotates forwards to drive the worm 901 to rotate, then the first gear and the second gear are driven to rotate, the second gear drives the third gear which is meshed with the second gear to rotate when rotating, and further drives the fourth gear to rotate, the swing gear 7 which is meshed with the fourth gear is driven to rotate when rotating, the transmission torsion spring 6 rotates along with the second gear, so that the push-pull shaft 5 is driven to retract linearly, the iron block 4 is pulled open, namely, the hook-shaped part at the front end of the iron block 4 is separated from the hook-shaped part at the front end of the lock hook 1, and the lock hook 1 springs open under the action of the torsion spring 2, so that the lock is unlocked. Because the swing gear 7 is a partial gear, when the part of the swing gear 7 without teeth is rotated, the fourth gear is separated from the swing gear 7 to realize idle rotation, so that the motor is prevented from rotating in a blocked way; the transmission torsion spring 6 ensures that the teeth of the swing gear 7 are pressed on the fourth gear, thereby ensuring smooth meshing during reverse rotation; when the lock is unlocked, the lock tongue on the lock hook 1 is pressed to the position switch 3, and an unlocking signal is given to the controller.

During resetting, the motor 10 rotates reversely to drive the worm 901 to rotate, then drives the first gear and the second gear to rotate, the second gear drives the third gear engaged with the second gear to rotate when rotating, and further drives the fourth gear to rotate, the swing gear 7 engaged with the fourth gear is driven to rotate when rotating, the transmission torsion spring 6 rotates along with the second gear, so that the push-pull shaft 5 is driven to extend out, then the stopper 4 is pushed to the locking position, and the front end of the stopper 4 is matched with the front end of the lock hook 1, so that resetting is realized.

Locking: after the blocking iron 4 is reset, the door catch presses the locking hook 1, and the locking hook 1 pushes the blocking iron 4 open, so that locking is achieved.

The above embodiments are preferred embodiments of the present invention, and those skilled in the art can make variations and modifications to the above embodiments, therefore, the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A battery pack lock, comprising:

the lock hook (1) is rotatably arranged in the lock shell (12), and a torsion spring (2) is arranged on the lock hook (1);

the position switch (3), the said position switch (3) is mounted to one side of the latch hook (1);

the iron resistor (4) is rotatably arranged in the lock shell (12), one end of the iron resistor (4) is hook-shaped and is matched with the lock hook (1);

the motor push-pull mechanism comprises a push-pull shaft (5), a transmission torsion spring (6), a swinging gear (7), a gear set (8), a worm and gear mechanism (9) and a motor (10), wherein the other end of the iron resistor (4) is connected with the push-pull shaft (5), the transmission torsion spring (6) is connected with the swinging gear (7), the swinging gear (7) is a partial gear, the swinging gear (7) is connected with the worm and gear mechanism (9) through the gear set (8), and the worm and gear mechanism (9) is driven by the motor (10).

2. The battery pack lock of claim 1, wherein: and a waterproof sleeve (11) is arranged on the push-pull shaft (5).

3. The battery pack lock of claim 1, wherein: the worm and gear mechanism (9) comprises a worm (901) and a worm gear (902), the worm gear (902) comprises a first gear meshed with the worm (901) and a second gear meshed with the gear set (8), and the first gear and the second gear rotate coaxially.

4. The battery pack lock of claim 3, wherein: the gear set (8) comprises a third gear and a fourth gear which rotate coaxially, the third gear is meshed with the second gear, and the fourth gear is meshed with the swinging gear (7).

5. The battery pack lock of claim 1, wherein: one end of the transmission torsion spring (6) is arranged on a rotating shaft of the gear set (8), and the other end of the transmission torsion spring is connected with the push-pull shaft (5).

6. The battery pack lock of claim 1, wherein: one end of the push-pull shaft (5) is provided with a through hole, and the other end of the iron block (4) penetrates through the through hole in the push-pull shaft (5).