CN-224210891-U - Installation locking mechanism of electric automobile battery

Abstract

The utility model discloses an installation locking mechanism of an electric automobile battery, which adopts a split design of a first lock body and a second lock body, wherein the battery on the second lock body is quickly disassembled and assembled with the first lock body on the electric automobile through a lock tongue, the assembly precision requirement is low, the whole structure is compact, the installation locking mechanism is suitable for limited space layout of the electric automobile, the vertical and parallel switching of a pressing strip and a waist-shaped hole is realized through 90-degree rotation of the lock tongue, the mechanical interlocking structure is formed by combining the screw drive of an unlocking nut, the pressing strip vertically presses two sides of a connecting groove during locking, the stable locking force is provided, the unexpected loosening caused by vibration during the running of the automobile is effectively avoided, the safety is improved, the reversely rotated nut can be quickly separated during unlocking, the operation is simple and convenient, the reliability is high, the disassembly efficiency is improved, the installation locking mechanism is high in reliability, the operation convenience and the safety are realized, the requirements of quick replacement and stable locking of the electric automobile battery can be met, the maintenance cost is reduced, and the application prospect of the installation locking mechanism is remarkable.

Inventors

• Ye Gaogao
• Ling Yaping
• WANG WEI
• CHEN YUE

Assignees

• 泽清新能源科技有限公司

Dates

Publication Date

20260508

Application Date

20250516

Claims (10)

1. 1. The electric automobile battery installation locking mechanism is characterized by comprising a first lock body (1), a second lock body (2), a lock tongue (3) and an unlocking nut (4), wherein the first lock body (1) is fixedly connected to an electric automobile, and the second lock body (2) is connected with the first lock body (1) through the lock tongue (3) in a matching manner so as to install a battery (5) fixedly connected to the second lock body (2) to the electric automobile.
2. 2. The mounting locking mechanism according to claim 1, wherein the first lock body (1) is provided with a through groove (11), the lock tongue (3) passes through the through groove (11) to be rotationally connected with the first lock body (1), one end of the lock tongue (3) passing through the through groove (11) is provided with a vertically arranged pressing bar (31), and two sides of the through groove (11) are provided with first limiting blocks (12) to limit the rotation angle between the lock tongue (3) and the first lock body (1).
3. 3. The mounting locking mechanism according to claim 2, wherein the first limiting block (12) limits the rotation angle between the lock tongue (3) and the first lock body (1) between a first angle and a second angle, when the lock tongue (3) rotates to the first angle, the pressing bar (31) is parallel to the through groove (11), and can be adapted to pass through the through groove (11), when the lock tongue (3) rotates to the second angle, the pressing bar (31) passing through the through groove (11) abuts against the first limiting block (12), and is vertically pressed on two sides of the through groove (11).
4. 4. The mounting locking mechanism according to claim 2, characterized in that a first through hole (21) and a second through hole (22) which are communicated with each other are axially arranged in the second lock body (2), and the unlocking nut (4) is adaptively arranged in the second through hole (22) and is in threaded connection with the lock tongue (3) which slides through the first through hole (21).
5. 5. The mounting locking mechanism according to claim 4, characterized in that the outer diameter of the unlocking nut (4) is larger than the inner diameter of the first through hole (21), the unlocking nut (4) abutting against the end wall of the first through hole (21).
6. 6. The mounting locking mechanism according to claim 4, wherein a first baffle (32) is arranged in the middle of the lock tongue (3), the first baffle (32) is slidably arranged in the first through hole (21), a first friction plate (33), a second friction plate (34) and a first spring (35) are sleeved on the lock tongue (3), and the first spring (35) is connected between the first friction plate (33) and the second friction plate (34) in a compressed mode, so that the first friction plate (33) is kept in tight contact with the first baffle (32), and the second friction plate (34) is kept in tight contact with the unlocking nut (4).
7. 7. The mounting locking mechanism according to claim 6, wherein a second limiting block (36) is arranged on the side wall of the baffle plate (32), a fan-shaped limiting groove (23) corresponding to the second limiting block (36) is arranged on the inner wall of the first through hole (21), and the second limiting block (36) is slidably connected in the fan-shaped limiting groove (23) so as to limit the rotation angle between the lock tongue (3) and the second lock body (2).
8. 8. The mounting locking mechanism according to claim 7, characterized in that a first check ring (24) is fixedly arranged in the second through hole (22), a first latch (25) is arranged on the first check ring (24), a second check ring (26) corresponding to the first check ring (24) is arranged on the unlocking nut (4), and a second latch (27) meshed with the first latch (25) is arranged on the second check ring (26).
9. 9. The mounting locking mechanism according to claim 8, characterized in that the second check ring (26) is slidably connected with the unlocking nut (4) and can slide axially along the unlocking nut (4), the end of the unlocking nut (4) is provided with a second baffle (41), and a second spring (28) is connected between the second check ring (26) and the second baffle (41) in a compressed manner.
10. 10. The mounting locking mechanism according to claim 9, characterized in that the side wall of the unlocking nut (4) is of polygonal structure, and the second check ring (26) is fitted on the polygonal side wall of the unlocking nut (4) through a polygonal inner hole adaptation in the middle.

Description

Installation locking mechanism of electric automobile battery Technical Field The utility model belongs to the technical field of electric vehicle battery replacement, relates to a battery fixing structure, and particularly relates to an installation locking mechanism of an electric vehicle battery. Background Along with the rapid development of electric automobile technology, electric automobiles gradually become mainstream travel tools due to the advantages of environmental protection, energy conservation and the like. However, the charging time of the electric automobile is long due to the bottleneck of the current battery charging technology, and particularly the problem of insufficient charging efficiency in a long-distance travel scene is particularly remarkable. In order to solve the technical problem, a battery quick replacement scheme is provided in the industry, namely, a full-power battery is replaced by a low-power battery, and a quick energy supplementing mode similar to the traditional fuel vehicle refueling mode is realized, so that user experience is improved. In the existing battery power conversion technology, in order to ensure stable locking of a battery during running of a vehicle, a multiple fixing structure is generally adopted. For example, after the locking mechanism completes primary locking, a fixing piece (such as a bolt, a buckle and the like) is additionally arranged for secondary reinforcement, so that the battery is prevented from loosening or even falling off due to vibration or impact under complex road conditions. However, this design has the following drawbacks: The secondary fixing mechanism increases the complexity of the whole structure, occupies more installation space and improves the manufacturing cost. Complicated operation, namely, locking and secondary fixing are needed to be performed step by step in the power conversion process, so that the time consumption of the locking and unlocking process is increased, and the power conversion efficiency is affected. The automation difficulty is high, and the action of the secondary fixing mechanism needs to be additionally controlled in the scene of the power exchange station, so that the control logic and the mechanical structure of the automatic power exchange system are more complex, and the construction and operation cost is further increased. Disclosure of utility model In order to solve the technical problems in the background art, the utility model provides an installation locking mechanism of an electric automobile battery, which has a self-locking function, realizes stable locking and anti-loosening of the battery, and has the advantages of high integration level, simple and convenient operation and adaptation to the automatic power change requirement. The aim of the utility model can be achieved by the following technical scheme: The installation locking mechanism of the electric automobile battery comprises a first lock body, a second lock body, a lock tongue and an unlocking nut, wherein the first lock body is fixedly connected to the electric automobile, and the second lock body is connected with the first lock body through the lock tongue to be matched with the first lock body so as to install the battery fixedly connected to the second lock body on the electric automobile. Further, a through groove is formed in the first lock body, the lock tongue penetrates through the through groove to be connected with the first lock body in a rotating mode, one end of the lock tongue penetrating through the through groove is provided with a pressing bar which is arranged vertically, and two sides of the through groove are provided with first limiting blocks to limit the rotating angle between the lock tongue and the first lock body. Further, the first limiting block limits the rotation angle between the lock tongue and the first lock body between a first angle and a second angle, when the lock tongue rotates to the first angle, the pressing strip is parallel to the through groove and can penetrate through the through groove in an adapting mode, and when the lock tongue rotates to the second angle, the pressing strip penetrating through the through groove abuts against the first limiting block and is vertically pressed on two sides of the through groove. Further, a first through hole and a second through hole which are mutually communicated are axially formed in the second lock body, and the unlocking nut is adaptively arranged in the second through hole and is in threaded connection with the lock tongue which slides through the first through hole. Further, the unlocking nut has an outer diameter greater than an inner diameter of the first through hole, and the unlocking nut abuts against an end wall of the first through hole. Further, the middle part of the lock tongue is provided with a first baffle, the first baffle is arranged in the first through hole in a sliding manner, the lock tongue is sleeved with a first fric