CN215889666U

CN215889666U - Composite lock for electric vehicle tail box

Info

Publication number: CN215889666U
Application number: CN202122045688.3U
Authority: CN
Inventors: 丁瑞荣; 蔡万波
Original assignee: Changzhou Wujin Huarui Electronic Co Ltd
Current assignee: Changzhou Wujin Huarui Electronic Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-02-22
Anticipated expiration: 2031-08-27

Abstract

The utility model belongs to the technical field of trunk locks, and relates to a composite lock for a trunk of an electric vehicle, which comprises a lock shell, a locking mechanism and an unlocking mechanism, wherein the locking mechanism and the unlocking mechanism are arranged in the lock shell, the locking mechanism comprises a lock hook and a lock tongue capable of limiting the lock hook, the unlocking mechanism comprises an electric unlocking assembly and a mechanical unlocking assembly, the lock tongue can release the limitation on the lock hook under the action of the electric unlocking assembly or the mechanical unlocking assembly, the lock hook and the lock tongue are both rotatably arranged in the lock shell, a lock hook torsion spring is arranged between the lock hook and the lock shell, an arc-shaped lock groove for sliding in and out of a lock buckle is formed in the lock hook, a clamping block is arranged on one side of the arc-shaped lock groove, a clamping groove matched with the clamping block is formed in the lock tongue, and a position switch in the lock shell and corresponding to the lock hook is further arranged in the position and connected with a driving PCB signal. The utility model can realize the electric unlocking of the tail box lock and the manual unlocking of the tail box lock, and has the advantages of simple structure, stability, reliability, small occupied structural space, good waterproof performance, few parts, low cost and the like.

Description

Composite lock for electric vehicle tail box

Technical Field

The utility model belongs to the technical field of trunk locks, and particularly relates to a composite lock for a trunk of an electric vehicle.

Background

In daily life, electric vehicles are very popular among consumers because they are light, fast and convenient, and manufacturers have a trunk and a trunk lock at the rear of a vehicle seat in order to better satisfy the requirement of users for storing articles or tools.

At present, the trunk lock for the existing electric vehicle is mostly manually opened, but when the electric vehicle is tightly stored in a parking space or a user is shopping, and more articles cannot be left out, the manual unlocking is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and shortcomings in the prior art, and provides the composite lock for the electric vehicle tail box, which can be unlocked electrically and manually, is stable and reliable, occupies small structural space, has good waterproof performance, few parts and is low in cost.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an electric motor car is composite lock for boot, includes the lock shell to and the mechanism and the release mechanism of locking of setting in the lock shell, the mechanism of locking includes the latch hook and can carries out spacing spring bolt to the latch hook, release mechanism includes electronic unblock subassembly and mechanical unblock subassembly, the spring bolt can be under the effect of electronic unblock subassembly or mechanical unblock subassembly the spacing to the latch hook of unblock.

Preferably, the lock hook and the lock tongue are both rotatably arranged in the lock shell, and a lock hook torsion spring is arranged between the lock hook and the lock shell.

Preferably, the latch hook is provided with an arc-shaped lock groove for the latch to slide in and out, one side of the arc-shaped lock groove is provided with a clamping block, and the spring bolt is provided with a clamping groove matched with the clamping block.

Preferably, the electric unlocking assembly comprises a driving motor and a transmission assembly arranged between the driving motor and the lock tongue, and the transmission assembly comprises a rotating part connected with the driving motor and a push-pull part arranged between the rotating part and the lock tongue.

Preferably, the rotating member includes a worm wheel engaged with a worm on an output shaft of the driving motor and a swing gear engaged with the worm wheel.

Preferably, the push-pull piece comprises a push-pull rod and a transmission torsion spring arranged between the push-pull rod and the swing gear, and one end of the push-pull rod, which is far away from the transmission torsion spring, is connected with the lock tongue through a connecting pin.

Preferably, the worm wheel is a duplicate gear, and the swinging gear is not designed with full teeth and is abutted against the worm wheel under the action of the transmission torsion spring.

Preferably, the mechanical unlocking assembly comprises a mechanical unlocking piece, and the mechanical unlocking piece is positioned on one side of the bolt far away from the push-pull rod and penetrates through the outer side of the lock shell.

Preferably, a position switch in signal connection with the driving PCB is further arranged at a position corresponding to the lock hook in the lock case.

After the technical scheme is adopted, the composite lockset for the trunk of the electric vehicle provided by the utility model has the following beneficial effects:

according to the utility model, through the dual design of the electric unlocking assembly and the mechanical unlocking assembly, the electric unlocking of the tail box lock can be realized, and the manual mechanical unlocking of the tail box lock can also be realized; through the design of the lock hook and the lock tongue, when the lock hook is in a locking state, the lock tongue can limit the position of the lock hook; through the design of the lock hook torsion spring, the stability of the reset of the lock hook can be ensured when the lock tongue relieves the limit of the lock hook; through the design of non-full teeth of the swing gear, the driving motor can be ensured to be separated from the swing gear after unlocking and resetting are realized through the swing gear so as to realize idle running, the driving motor is ensured not to be locked, and the service life of the driving motor is prolonged; through the design of the transmission torsion spring, the swinging gear can be guaranteed to be always pressed on the worm wheel, so that the swinging gear is smoothly meshed with the worm wheel during unlocking and resetting; the elasticity of the lock hook when the lock tongue is extruded into the lock can be ensured; the unlocking force of the driving motor can be stored in the transmission torsion spring when the resistance of the lock hook is overlarge in the unlocking process, and the lock hook can be automatically unlocked when the resistance of the lock hook is released, so that the unlocking operation does not need to be executed again; through the design of the position switch, the driving PCB can judge the locking or unlocking state more clearly and accurately, so that the stability and reliability of the driving PCB in controlling the driving motor are ensured. Therefore, the utility model has the advantages of simple structure, stability, reliability, small occupied structural space, good waterproof performance, few parts, low cost and the like.

Drawings

Fig. 1 is a schematic structural diagram of a composite lock for a trunk of an electric vehicle according to the present invention.

Wherein: the lock comprises a lock shell 1, a lock hook 2, a lock tongue 3, a lock hook torsion spring 4, an arc-shaped lock groove 5, a clamping block 6, a clamping groove 7, a driving motor 8, a worm 9, a worm wheel 10, a swing gear 11, a push-pull rod 12, a transmission torsion spring 13, a connecting pin 14, a mechanical unlocking piece 15, a driving PCB16 and a position switch 17.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings and detailed description, in which it is to be understood that the embodiments described are merely illustrative of some, but not all embodiments of the utility model. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The utility model discloses a composite lock for a trunk of an electric vehicle, which comprises a lock shell 1, a locking mechanism and a unlocking mechanism, wherein the locking mechanism and the unlocking mechanism are arranged in the lock shell 1, as shown in figure 1.

The locking mechanism comprises a locking hook 2 and a locking tongue 3, the locking tongue 3 can limit the locking hook 2 when the locking hook 2 is in a locking state, specifically, the locking hook 2 is arranged at a position corresponding to an opening at the top of the lock case 1 for inserting a locking buckle, an arc-shaped locking groove 5 matched with the opening is formed in the locking hook 2, the locking hook 2 is rotatably arranged in the lock case 1, and a locking hook torsion spring 4 is arranged between the locking hook 2 and the lock case 1 and used for ensuring the resetting stability of the locking hook 2 after the limit is removed; the lock tongue 3 is straight rod-shaped, and its middle part is connected with lock shell 1 rotation, and upper portion cooperatees with latch hook 2, and the lower part is connected with release mechanism, and is concrete, arc locked groove 5 one side of latch hook 2 is equipped with fixture block 6, be equipped with on the lock tongue 3 with fixture block 6 matched with draw-in groove 7, the lock of latch hook 2 is realized through the cooperation of draw-in groove 7 and fixture block 6 to lock tongue 3.

The unlocking mechanism comprises an electric unlocking assembly and a manual unlocking assembly, electric unlocking of the tail box lock can be achieved, manual unlocking of the tail box lock can be achieved, and the lock tongue 3 can be used for releasing limitation on the lock hook 2 under the action of the electric unlocking assembly or the manual unlocking assembly.

The electric unlocking assembly comprises a driving motor 8 and a transmission assembly arranged between the driving motor 8 and the lock tongue 3, the transmission assembly can transmit the power of the driving motor 8 to the lock tongue 3 to push the lock tongue 3 to remove the limit of the lock hook 2, and specifically, the transmission assembly comprises a rotating part connected with the driving motor 8 and a push-pull part arranged between the rotating part and the lock tongue 3; the rotating part comprises a worm wheel 10 meshed with a worm 9 on an output shaft of the driving motor 8 and a swing gear 11 meshed with the worm wheel 10, the worm wheel 10 is a duplicate gear, the swing gear 11 is of a non-full-tooth design, namely, both ends of teeth meshed with the swing gear 11 and the worm wheel 10 are of a smooth design, and the rotating part is used for ensuring that the driving motor 8 drives the bolt 3 through the swing gear 11 to realize unlocking and resetting and then is separated from the swing gear 11 to realize idle running, ensuring that the driving motor 8 cannot generate locked rotation, and prolonging the service life of the driving motor 8; the push-pull piece comprises a push-pull rod 12 and a transmission torsion spring 13 arranged between the push-pull rod 12 and the swing gear 11, one end of the push-pull rod 12 far away from the transmission torsion spring 13 is connected with the bolt 3 through a connecting pin 14, through the design of the transmission torsion spring 13,

the mechanical unlocking assembly comprises a mechanical unlocking piece 15, the mechanical unlocking piece 15 is located on one side, away from the push-pull rod 12, of the bolt 3 and penetrates through the outer side of the lock shell 1, during use, the acting force of the transmission torsion spring 13 is overcome to the direction of the push-pull rod 12, the mechanical unlocking piece 15 is pushed to push the bolt 3 to realize unlocking, and after unlocking is completed, the bolt 3 can reset under the action of the transmission torsion spring 13.

The position of the lock shell 1 corresponding to the lock hook 2 is also provided with a position switch 17 in signal connection with the drive PCB16, and the position switch is used for sending an unlocking or locking signal to the drive PCB16, and controlling the forward and reverse rotation and rotation time of the drive motor 8 through the drive PCB16, so that the judgment of the locking or unlocking state by the drive PCB16 can be clearer and more accurate, and the stability and reliability of controlling the drive motor 8 to work can be ensured.

The utility model relates to a working principle of a composite lock for a tail box of an electric vehicle, which comprises the following steps: when the lock is locked, a lock catch on the tail box cover mechanically extrudes the lock hook 2 in the opening downwards through the opening on the lock shell 1, the lock hook 2 overcomes the acting force of the lock hook torsion spring 4 to rotate, when the lock hook 2 extrudes and overcomes the acting force of the transmission torsion spring 13 to jack the lock tongue 3, and the lock tongue 3 resets under the action of the transmission torsion spring 13 to realize the matching of the clamping block 6 and the clamping groove 7, so that the locking can be realized; during manual unlocking, the lock tongue 3 is pushed to rotate by overcoming the acting force of the transmission torsion spring 13 through the mechanical unlocking piece 15, the limit on the lock hook 2 is removed, the lock hook 2 resets and unlocks under the action of the lock hook torsion spring 4, then, the mechanical unlocking piece 15 is loosened, and the lock tongue 3 can reset under the action of the transmission torsion spring 13; during electric unlocking, the driving PCB16 receives an unlocking instruction and controls the driving motor 8 to rotate forwards, driving force is transmitted to the worm wheel 10 through the worm 9, the worm wheel 10 drives the oscillating gear 11 and the transmission torsion spring 13 to rotate together, the transmission torsion spring 13 pulls the push-pull rod 12, so that the lock tongue 3 is pulled to rotate to release the limit of the lock hook 2, the lock hook 2 is reset and unlocked under the action of the lock hook torsion spring 4, at the moment, the lock hook 2 is pressed to the position switch 17, the position switch 17 transmits an unlocking signal to the driving PCB16, the driving PCB16 changes the rotating direction of the driving motor 8, an action opposite to unlocking is performed, the worm wheel 10 drives the oscillating gear 11 and the transmission torsion spring 13 to rotate in the opposite direction, and the transmission torsion spring 13 pushes the push-pull rod 12 to return to the initial position, so that the lock tongue 3 is reset.

The above operations are circulated in this way, and the unlocking and locking actions can be repeatedly completed.

In conclusion, the composite lock for the trunk of the electric vehicle, provided by the utility model, can realize electric unlocking of the trunk lock and manual unlocking of the trunk lock, has the advantages of simple structure, stability, reliability, small occupied structural space, good waterproof performance, few parts, low cost and the like, has great market value, and is worthy of wide popularization and application.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an electric motor car is compound lock for boot, includes lock shell (1) to and the mechanism and the release mechanism of locking of setting in lock shell (1), its characterized in that: the locking mechanism comprises a locking hook (2) and a locking tongue (3) capable of limiting the locking hook (2), the unlocking mechanism comprises an electric unlocking assembly and a mechanical unlocking assembly, and the locking tongue (3) can release limiting of the locking hook (2) under the action of the electric unlocking assembly or the mechanical unlocking assembly.

2. The composite lock for the trunk of the electric vehicle as claimed in claim 1, wherein: the lock hook (2) and the lock tongue (3) are both rotatably arranged in the lock shell (1), and a lock hook torsion spring (4) is arranged between the lock hook (2) and the lock shell (1).

3. The composite lock for the trunk of the electric vehicle as claimed in claim 1, wherein: the lock hook is characterized in that an arc-shaped lock groove (5) for the lock catch to slide in and out is formed in the lock hook (2), a clamping block (6) is arranged on one side of the arc-shaped lock groove (5), and a clamping groove (7) matched with the clamping block (6) is formed in the lock tongue (3).

4. The composite lock for the trunk of the electric vehicle as claimed in claim 1, wherein: the electric unlocking assembly comprises a driving motor (8) and a transmission assembly arranged between the driving motor (8) and the lock tongue (3), and the transmission assembly comprises a rotating part connected with the driving motor (8) and a push-pull part arranged between the rotating part and the lock tongue (3).

5. The composite lock for the trunk of the electric vehicle as claimed in claim 4, wherein: the rotating part comprises a worm wheel (10) meshed with a worm (9) on an output shaft of the driving motor (8) and a swinging gear (11) meshed with the worm wheel (10).

6. The composite lock for the trunk of the electric vehicle as claimed in claim 5, wherein: the push-pull piece comprises a push-pull rod (12) and a transmission torsion spring (13) arranged between the push-pull rod (12) and the swing gear (11), and one end, far away from the transmission torsion spring (13), of the push-pull rod (12) is connected with the bolt (3) through a connecting pin (14).

7. The composite lock for the trunk of the electric vehicle as claimed in claim 6, wherein: the worm wheel (10) adopts a duplicate gear, and the swinging gear (11) is not designed with full teeth and is tightly pressed on the worm wheel (10) under the action of a transmission torsion spring (13).

8. The composite lock for the trunk of the electric vehicle as claimed in claim 6, wherein: the mechanical unlocking assembly comprises a mechanical unlocking piece (15), wherein the mechanical unlocking piece (15) is positioned on one side, away from the push-pull rod (12), of the bolt (3) and penetrates through the outer side of the lock shell (1).

9. The composite lock for the trunk of the electric vehicle as claimed in claim 1, wherein: and a position switch (17) in signal connection with the drive PCB (16) is further arranged in the lock shell (1) at a position corresponding to the lock hook (2).