CN111347860A

CN111347860A - Locking device for battery replacement, locking and unlocking device and electric vehicle

Info

Publication number: CN111347860A
Application number: CN201910939176.6A
Authority: CN
Inventors: 叶庆丰; 戴有发; 邱胜国; 周爱军; 袁丹
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-30

Abstract

The invention provides a locking device for battery replacement, which comprises a locking body for locking a battery locking shaft; the locking body comprises a lock base and a lock tongue; wherein, the lock base is fixed on the vehicle body frame to form a fixed support; the lock tongue is pivoted in the lock base; one end of the lock tongue extends to form a connecting end connected with a locking or unlocking driving force; the lock base is provided with an opening, and one end of the lock tongue protrudes to form a first limiting part; the battery lock shaft can enter the lock base along the opening; when the lock tongue body is in a locking state, the lock tongue and the lock base form a clamping area of the battery lock shaft, and the first limiting part is used for limiting the battery lock shaft to move out of the lock base. The invention further relates to a locking and unlocking device and an electric vehicle. The novel energy vehicle battery locking device is ingenious in design, reasonable in structure, simple and reliable in unlocking mode, convenient to popularize and apply and capable of meeting the requirement of quick battery replacement of the novel energy vehicle, and the battery locking device is connected with the vehicle body by adopting a high-efficiency and reliable locking structure mechanism.

Description

Locking device for battery replacement, locking and unlocking device and electric vehicle

Technical Field

The invention belongs to the field of quick replacement of batteries, and particularly relates to a locking device for battery replacement, a locking and unlocking device and an electric vehicle.

Background

With the increasingly widespread use of various new energy vehicles such as electric vehicles and hybrid vehicles, technologies related to the quick change of batteries and the like are becoming the subject of attention and research.

The weight of a battery in the new energy vehicle is large, and the connection between the battery and the vehicle body is easily influenced by the shake and inertia in the process of travel; meanwhile, in order to realize quick replacement of the battery, the connecting structure needs to have the capability of quick unlocking; under the circumstance, an efficient and reliable locking structure mechanism is urgently needed to be designed to realize the connection between the new energy vehicle battery and the vehicle body.

Disclosure of Invention

In order to overcome the defects of the prior art, the locking device for battery replacement provided by the invention adopts a high-efficiency and reliable locking structure mechanism to realize the connection between the battery of the new energy vehicle and the vehicle body, the unlocking mode is simple and reliable, and the requirement of quick battery replacement of the new energy vehicle is met.

The invention provides a locking device for battery replacement, which comprises a locking body for locking a battery locking shaft; the lock body comprises a lock base and a lock tongue; wherein the content of the first and second substances,

the lock base is fixed on the vehicle body frame to form a fixed support;

the lock tongue is pivoted in the lock base; one end of the lock tongue extends to form a connecting end connected with a locking or unlocking driving force;

the lock base is provided with an opening, and one end of the lock tongue protrudes to form a first limiting part; a battery lock shaft is accessible along the opening into the lock base;

when the lock tongue body is in a locked state, the lock tongue and the lock base form a clamping area of the battery lock shaft, and the first limiting part is used for limiting the battery lock shaft to move out of the lock base.

Preferably, the connecting end protrudes beyond the lock base.

Preferably, an interference part extends from one end of the lock tongue.

Preferably, the opening is located in a side wall of the lock base.

Preferably, the opening extends in a horizontal direction so that the battery lock shaft enters the lock base in an in-horizontal-plane direction.

Preferably, the lock base comprises a first housing, a second housing; wherein the content of the first and second substances,

the first shell and the second shell are mutually assembled to form an accommodating cavity of the lock bolt; the lock tongue is pivoted with the inner wall of the first shell and/or the second shell through a rotating shaft.

Preferably, the first housing and/or the second housing is provided with a contact block for limiting the rotation of the lock bolt.

Preferably, the latch body further includes a reset member contacting the latch bolt for forming a restoring force for restoring the latch bolt to the locked state or the unlocked state.

Preferably, the inner wall of the first limiting part is provided with a first limiting end face used for abutting against the battery lock shaft.

Preferably, the first limiting end surface is a plane.

Preferably, a first fillet is arranged on one side face of the first limiting part, and the tail end of the first fillet borders on the first limiting end face.

Preferably, the tail end of the first limiting end face is a first arc face, and the first arc face is used for limiting the battery lock shaft.

A locking and unlocking device comprises the lock body and a connecting rod; wherein the content of the first and second substances,

the connecting rod is provided with a plurality of connecting structures used for connecting the connecting ends of the clamping lock bodies, and the external unlocking mechanism pushes the driving part of the connecting rod so that the clamping lock bodies can be locked or unlocked simultaneously.

Preferably, the driving portion is located between two adjacent latch bodies.

An electric vehicle comprises a vehicle body provided with a battery, wherein the vehicle body is provided with the locking and unlocking device; the connecting rod of the locking and unlocking device is arranged on one side of a fixed bracket for mounting a battery.

Preferably, the electric vehicle comprises a chassis, and the locking and unlocking device is fixed on the chassis.

Compared with the prior art, the invention has the beneficial effects that:

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic view of an overall structure of a latch body according to an embodiment of the present invention;

FIG. 2 is a partial front elevational view of the latch body in a locked condition in accordance with one embodiment of the present invention;

FIG. 3 is a partial structural elevational view of the latch body in one embodiment of the present invention;

FIG. 4 is a partial structural elevational view of the latch body in an unlocked position in accordance with one embodiment of the present invention;

FIG. 5 is a schematic view of a latch bolt according to an embodiment of the present invention;

FIG. 6 is a schematic view of an overall structure of a locking/unlocking device according to an embodiment of the present invention;

shown in the figure:

the battery lock comprises a first shell 111, a second shell 112, an opening 113, a bolt 120, a connecting end 121, an abutting part 122, a first limiting part 123, a first fillet 1231, a clamping area 124, a first arc surface 1241, a first limiting end face 1242, a first shaft 130, a battery lock shaft 200, a connecting rod 300 and a driving part 310.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

The locking device for replacing batteries, as shown in fig. 1, comprises a latch body 100 for locking a battery lock shaft 200; the latch body 100 includes a lock base, a locking tongue 120; wherein the content of the first and second substances,

the lock base is fixed on the vehicle body frame to form a fixed support;

the locking bolt 120 is pivoted in the lock base; one end of the bolt 120 extends to form a connecting end 121 connected with a locking or unlocking driving force; in this embodiment, as shown in fig. 1 and 2, the latch tongue 120 is pivotally connected to the inner wall of the lock base through the first shaft 130, so that the installation is fast and efficient.

The lock base is provided with an opening 113, and one end of the bolt 120 protrudes to form a first limiting part 123; a battery lock shaft 200 may enter the lock base along the opening 113;

when the latch bolt body 120 is in a locked state, the latch bolt 120 and the lock base form a clamping area 124 of the battery lock shaft 200, and the first limiting portion 123 is used for limiting the battery lock shaft 200 to move out of the lock base. In this embodiment, as shown in fig. 4, when the battery lock shaft 200 is located at the opening 113 and has not reached the locking position, the latch tongue 120 is lifted by the driving force, so that the first position-limiting part 123 is moved away from the opening 113, thereby allowing the battery lock shaft 200 to enter; when the battery lock shaft 200 reaches the locking position, the latch tongue 120 rotates counterclockwise as shown in fig. 4 under the driving force, the first position-limiting portion 123 blocks the battery lock shaft 200 to perform a locking function, and the locking state is shown in fig. 2.

The connecting end 121 can be connected with the unlocking driving force in a welding, screwing and riveting mode; in a preferred embodiment, the connecting end 121 extends beyond the lock base. As shown in fig. 1 and 6; the connecting end 121 is provided with a screw hole and is hinged with the connecting rod 300 in a mode of screwing a rotating shaft, and the connecting end 121 extends out of the lock base, so that the installation and maintenance are facilitated.

As shown in fig. 4 and 5, an interference portion 122 extends from one end of the latch tongue 120. The abutting part 122 is used for being matched with the inner wall of the lock base to realize the rotation limit of the bolt 120 and prevent the bolt 120 from rotating excessively and being incapable of returning; the shape of the interference portion 122 may be configured as a strip, a block, or an arc, which is not intended to limit the scope of the present invention.

In a preferred embodiment, as shown in FIG. 4, the opening 113 is located in a side wall of the lock base. In one embodiment, the opening 113 extends in a horizontal direction such that the battery lock shaft 200 enters the lock base in an in-horizontal direction. Therefore, the battery has more bearing structures in the vertical direction, and the battery is prevented from directly falling due to inertia or vibration.

In a preferred embodiment, as shown in fig. 1, the lock base includes a first housing 111, a second housing 112; wherein the content of the first and second substances,

the first shell 111 and the second shell 112 are assembled with each other to form an accommodating cavity of the locking bolt 120; the latch tongue 120 is pivotally connected to the inner wall of the first casing 111 and/or the second casing 112 through a rotating shaft.

In one embodiment, the latch body 100 further includes a restoring member (not shown) contacting the latch tongue 120 for forming a restoring force for restoring the latch tongue 120 to the locked state or the unlocked state; the first housing 111 and/or the second housing 112 are provided with a contact block (not shown) for limiting the rotation of the latch bolt 120. On one hand, the reset piece is protected, and the condition that the reset piece cannot be restored due to over-rotation is prevented; on the other hand, the dead point formed by over-rotation of the locking tongue 120 is prevented from generating structural failure. It should be understood that the reset member may be configured as a tension spring, a compression spring, a torsion spring, a coil spring, etc., and any structure or device capable of providing a reset force is within the scope of the present invention.

In a preferred embodiment, as shown in fig. 5, the inner wall of the first position-limiting portion 123 is provided with a first position-limiting end face 1242 for abutting against the battery lock shaft 200. The first limit end face 1242 is a plane. A first fillet 1231 is arranged on one side of the first limiting part 123, and the end of the first fillet 1231 borders the first limiting end face 1242. The end of the first limiting end face 1242 is a first arc face 1241, and the first arc face 1241 is used for limiting the battery lock shaft 200. In this embodiment, the first limiting end face 1242 extends along the tangential direction of the first arc face 1241 to form a limiting face of the battery lock shaft 200, and meanwhile, the end of the first limiting end face 1242 forms a first fillet 1231 through a chamfer, so that the first fillet 1231 ensures smooth transition in the process of contacting the battery lock shaft 200, thereby preventing unnecessary mechanical collision.

A locking and unlocking device comprises the lock body 100 and a connecting rod 300; wherein the content of the first and second substances,

the connecting rod 300 is provided with a plurality of connecting structures for connecting the connecting ends 121 of the latch bodies 100, and the external unlocking mechanism pushes the driving part 310 of the connecting rod 300, so that the latch bodies 100 are locked or unlocked simultaneously. In this embodiment, as shown in fig. 6, the driving portion 310 is jacked or pushed by the external unlocking mechanism, so that the connecting end 121 of the three sets of locking bodies 100 is driven to rotate clockwise, the first limiting portion 123 is lifted and separated from contact with the battery locking shaft 200, and the battery locking shaft 200 is in a free state at this time, thereby realizing quick unlocking of the battery. When locking, the accessible configuration resets and utilizes the resilience force to assist the locking, cooperates the motion of drive division 310 simultaneously for drive three sets of kayser bodies 100's link 121 counter-clockwise turning simultaneously, realize locking fast.

As shown in fig. 6, in order to distribute the unlocking driving force relatively uniformly, the driving portion 310 is located between two adjacent latch bodies 100.

The invention also relates to an electric vehicle which comprises a vehicle body provided with a battery, wherein the vehicle body is provided with the locking and unlocking device; the link 300 of the locking and unlocking device is disposed at a side of a fixing bracket for mounting a battery. It should be understood that any electric vehicle using the locking and unlocking device of the present embodiment is within the scope of the present invention. In a preferred embodiment, the electric vehicle comprises a chassis, and the locking and unlocking device is fixed on the chassis.

The novel energy vehicle battery locking device is ingenious in design, reasonable in structure, simple and reliable in unlocking mode, convenient to popularize and apply and capable of meeting the requirement of quick battery replacement of the novel energy vehicle, and the battery locking device is connected with the vehicle body by adopting a high-efficiency and reliable locking structure mechanism.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The locking device for replacing the battery comprises a clamping lock body (100) for locking a battery locking shaft (200); the method is characterized in that: the latch body (100) includes a lock base, a locking tongue (120); wherein the content of the first and second substances,

the lock base is fixed on the vehicle body frame to form a fixed support;

the lock tongue (120) is pivoted in the lock base; one end of the lock tongue (120) extends to form a connecting end (121) connected with a locking or unlocking driving force;

the lock base is provided with an opening (113), and one end of the bolt (120) protrudes to form a first limiting part (123); a battery lock shaft (200) is accessible to the lock base along the opening (113);

when the lock tongue body (120) is in a locking state, the lock tongue (120) and the lock base form a clamping area (124) of the battery lock shaft (200), and the first limiting part (123) is used for limiting the battery lock shaft (200) to move out of the lock base.

2. The locking device for battery replacement as claimed in claim 1, wherein: the connecting end (121) extends out of the lock base.

3. The locking device for battery replacement as claimed in claim 1, wherein: an interference part (122) extends from one end of the lock tongue (120).

4. The locking device for battery replacement as claimed in claim 1, wherein: the opening (113) is located in a side wall of the lock base.

5. The locking device for battery replacement as claimed in claim 4, wherein: the opening (113) extends in a horizontal direction so that the battery lock shaft (200) enters the lock base in a horizontal plane.

6. The locking device for battery replacement as claimed in claim 1, wherein: the lock base comprises a first shell (111), a second shell (112); wherein the content of the first and second substances,

the first shell (111) and the second shell (112) are assembled with each other to form a containing cavity of the bolt (120); the lock tongue (120) is pivoted with the inner wall of the first shell (111) and/or the second shell (112) through a rotating shaft.

7. The locking device for battery replacement as claimed in claim 6, wherein: and the first shell (111) and/or the second shell (112) are/is provided with a contact block for limiting the rotation of the lock tongue (120).

8. The locking device for battery replacement as claimed in claim 1, wherein: the latch body (100) further includes a reset member contacting the latch tongue (120) for forming a restoring force for restoring the latch tongue (120) to the locked state or the unlocked state.

9. The locking device for battery replacement as claimed in claim 1, wherein: the inner wall of the first limiting part (123) is provided with a first limiting end face (1242) used for being abutted against the battery lock shaft (200).

10. The locking device for battery replacement as claimed in claim 9, wherein: the first limit end face (1242) is a plane.

11. The lock-up device for battery replacement as claimed in claim 9 or 10, wherein: one side of the first limiting part (123) is provided with a first fillet (1231), and the tail end of the first fillet (1231) borders on the first limiting end face (1242).

12. The lock-up device for battery replacement as claimed in claim 9 or 10, wherein: the tail end of the first limiting end face (1242) is a first arc face (1241), and the first arc face (1241) is used for limiting the battery lock shaft (200).

13. A locking and unlocking device, characterized in that: comprising a latch body (100) according to any one of claims 1 to 12, a link (300); wherein the content of the first and second substances,

the connecting rod (300) is provided with a plurality of connecting structures used for connecting the connecting ends (121) of the clamping lock bodies (100), and the external unlocking mechanism pushes the driving parts (310) of the connecting rod (300) so that the clamping lock bodies (100) can be locked or unlocked simultaneously.

14. The locking and unlocking device according to claim 13, wherein: the driving part (310) is positioned between two adjacent latch bodies (100).

15. The utility model provides an electric motor car, is including the automobile body of installing the battery which characterized in that: the vehicle body is provided with the locking and unlocking device as claimed in claim 13 or 14; the link (300) of the locking and unlocking device is disposed at one side of a fixing bracket for mounting a battery.

16. The electric vehicle of claim 15, wherein: the electric vehicle comprises a chassis, and the locking and unlocking device is fixed on the chassis.