Battery replacement locking assembly and electric automobile

Abstract

The utility model provides a battery changing locking assembly and an electric automobile, the battery changing locking assembly comprises a shell, a lock pin, a rotating structure and a locking structure, the lock pin extends into the shell from one end of the shell, both the rotating structure and the locking structure are arranged in the shell, and the rotating structure allows the lock pin to extend into one end in the shell to enter; the rotating structure and the lock pin are matched to be in a locking state and an unlocking state, the rotating structure rotates to switch the locking state and the unlocking state, and in the unlocking state, the lock pin can enter or be separated from the rotating structure; the locking structure is matched with the rotating structure and locks the rotating structure or allows the rotating structure to rotate. The rotating structure is locked through the locking structure, so that the rotating structure cannot rotate freely, and the rotating structure and the lock pin are in a locked state; the locking structure unlocks the rotating structure by applying external force, the rotating structure can rotate to enter an unlocking state, unlocking of the lock pin and the rotating structure is achieved, and the reliability of locking or unlocking is improved.

Description

Technical Field

[0001] The utility model relates to the field of battery replacement devices, and in particular to a battery replacement locking assembly and an electric vehicle. Background Art

[0002] Battery electric vehicles (BEV) refer to vehicles that use onboard power as a power source, use motors to drive wheels, and comply with various requirements of road traffic and safety regulations. As their impact on the environment is relatively small compared to traditional vehicles, their prospects are widely optimistic.

[0003] It is a car that is completely powered by rechargeable batteries, such as lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and lithium-ion batteries. Electric vehicles have always been limited to certain specific applications and the market is relatively small. The main reason is that various types of batteries generally have serious disadvantages such as high prices, short lifespans, large dimensions and weights, and long charging times. In actual applications, the battery pack and body of an electric vehicle are often designed to be detachable. When the battery pack in use runs out of power, the old battery pack is removed and replaced with a new one, which is convenient for improving the endurance of the electric vehicle.

[0004] The existing Chinese patent application document with publication number CN216969412U discloses a magnetic locking part for a battery-changing locking mechanism, a battery-changing locking mechanism and an electric vehicle, which are used to lock the body locking pin. The magnetic locking part includes a locking bead, a locking bead retainer and a magnet. The locking bead retainer includes a locking section and a guide section. A center hole for the body locking pin to pass through and an accommodating cavity surrounding the center hole are formed inside the locking section. The locking bead is accommodated in the accommodating cavity and can move radially. The guide section is configured as a guide column, one end of the guide column is fixedly connected to the locking section, and the other end of the guide column is fixedly connected to the magnet.

[0005] The locking mechanism in the prior art uses magnetic parts for locking and unlocking, which has poor reliability and needs to be improved. Utility Model Content

[0006] In view of the defects in the prior art, the purpose of the present utility model is to provide a battery replacement locking assembly and an electric vehicle.

[0007] According to a battery replacement locking assembly and an electric vehicle provided by the utility model, the locking pin comprises a shell, a locking pin, a rotating structure and a locking structure, wherein the locking pin extends into the shell from one end of the shell, and the rotating structure and the locking structure are both arranged in the shell, and the rotating structure allows one end of the locking pin extending into the shell to enter; the rotating structure and the locking pin cooperate to include a locked state and an unlocked state, and the rotating structure rotates to switch between the locked state and the unlocked state, and in the unlocked state, the locking pin can enter or disengage from the rotating structure; the locking structure cooperates with the rotating structure and locks the rotating structure or allows the rotating structure to rotate.

[0008] Preferably, the rotating structure extends from one end of the shell to the other end of the shell in the shell, and the rotating structure includes a through groove whose length direction is parallel to the length direction of the shell, and the rotating structure also includes a locking groove whose length direction is perpendicular to the length direction of the shell, and the through groove and the locking groove are connected; the end of the locking pin extending into the shell includes a locking rod whose length direction is perpendicular to the length direction of the shell, and the locking rod slides with the through groove and the locking groove respectively.

[0009] Preferably, the locking rod extends into the rotating structure, one end of the locking rod extends out of the rotating structure, and both the passing groove and the locking groove do not allow the end of the locking rod extending out of the rotating structure to pass through.

[0010] Preferably, the locking structure includes a spring, a stop block and a bottom cover, the bottom cover is fixedly mounted on one end of the shell away from the locking pin, the spring and the stop block are both arranged in the shell, the outer contour of the stop block is a polyhedron, a groove matching the stop block is formed on the side of the bottom cover close to the stop block, and a through hole is formed in the middle of the groove; one end of the spring contacts the inner wall of the shell, and the other end of the spring contacts the stop block; the end of the rotating structure away from the locking pin cooperates with the stop block to lock or unlock.

[0011] Preferably, the size of the through hole is smaller than the cross-sectional size of the stop block, and the size of the through hole is larger than the cross-sectional size of one end of the rotating structure extending into the stop block.

[0012] Preferably, a polyhedral through groove is formed in the middle of the stop block, the shape of the end of the rotating structure away from the locking pin is adapted to the through groove, and the end of the rotating structure away from the locking pin is slidably matched with the through groove.

[0013] Preferably, the housing comprises an upper housing and a lower housing which are fastened together, a hole for allowing the rotating structure to pass through is formed between the upper housing and the lower housing, and the locking pin is mounted on the upper housing.

[0014] Preferably, a shaft sleeve is arranged between the rotating structure and the bottom wall of the upper shell.

[0015] Preferably, a rubber gasket is provided between the locking pin and the housing.

[0016] An electric vehicle provided by the utility model also includes a battery lifting lug, the battery lifting lug is fixedly connected to the shell, and the locking pin is connected to the vehicle body.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model locks the rotating structure through the locking structure in cooperation with the rotating structure, so that the rotating structure cannot rotate freely, thereby putting both the rotating structure and the locking pin in a locked state; by applying an external force, the locking structure releases the lock on the rotating structure, and the rotating structure can rotate into an unlocked state, thereby realizing the unlocking of the locking pin and the rotating structure. The use of a purely mechanical structure helps to improve the reliability of locking or unlocking.

[0019] 2. The utility model resets the stop block through a spring, thereby realizing automatic locking of the battery replacement locking assembly, which helps to improve the convenience of battery replacement.

[0020] 3. The utility model can ensure the sealing between the battery and the vehicle after locking by providing a rubber gasket, and provide axial tolerance during battery replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a cross-sectional view of the overall structure of the battery replacement locking assembly of the utility model;

[0023] Figure 2 This is a perspective view of the overall structure of the battery replacement locking assembly of the utility model;

[0024] Figure 3 This is a cross-sectional view of the locking structure of the utility model in a locked state;

[0025] Figure 4 This is a cross-sectional view of the locking structure of the utility model in the unlocked state.

[0026] Reference numerals:

[0027] Upper housing 1 Bushing 6

[0028] Lower housing 2 Spring 7

[0029] Lock pin 3 Stop block 8

[0030] Rubber gasket 4 Bottom cover 9

[0031] Rotating structure 5 Battery lifting lug 10 DETAILED DESCRIPTION

[0032] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0033] like Figure 1 and Figure 2 As shown, a battery replacement locking assembly provided by the utility model includes a housing, a lock pin 3, a rotating structure 5 and a locking structure. The lock pin 3 extends from one end of the housing into the housing. Both the rotating structure 5 and the locking structure are arranged in the housing. The rotating structure 5 allows the end of the lock pin 3 extending into the housing to enter. The cooperation between the rotating structure 5 and the lock pin 3 includes a locked state and an unlocked state. The rotating structure 5 rotates to switch between the locked state and the unlocked state. In the unlocked state, the lock pin 3 can enter or leave the rotating structure 5. The locking structure cooperates with the rotating structure 5 and locks the rotating structure 5 or allows the rotating structure 5 to rotate.

[0034] Under the action of external force, the locking structure is unlocked, and the rotating structure 5 can rotate. When the rotating structure 5 rotates to the unlocked state, the locking pin 3 can be separated from the rotating structure 5 to achieve unlocking.

[0035] Specifically, the shell of the present application has a certain structural strength, and the interior of the shell has a long strip or columnar chamber for accommodating the rotating structure 5 and the locking structure.

[0036] More specifically, the rotating structure 5 is cylindrical in shape as a whole. It should be noted that the rotating structure 5 of the present application includes multiple coaxially arranged cylinders of different diameters, which can be integrally formed or separately formed. The rotating structure 5 extends from one end of the shell to the other end of the shell in the shell. The rotating structure 5 includes a through groove whose length direction is parallel to the length direction of the shell. The rotating structure 5 also includes a locking groove whose length direction is perpendicular to the length direction of the shell, and the through groove and the locking groove are connected. One end of the locking pin 3 extending into the shell includes a locking rod whose length direction is perpendicular to the length direction of the shell, and the locking rod slides with the through groove and the locking groove respectively.

[0037] By providing a passing groove and a locking groove on the rotating structure 5, when the locking rod is located in the locking groove, the locking pin 3 and the rotating structure 5 are in a locked state, and the locking pin 3 cannot be separated from the rotating structure 5; when the locking rod is located in the passing groove, the locking pin 3 and the rotating structure 5 are in an unlocked state, and the locking pin 3 can enter or separate from the rotating structure 5, thereby realizing the switching of the locking pin 3 and the rotating structure 5 between the locked state and the unlocked state through the rotation of the rotating structure 5.

[0038] Further, the housing includes an upper housing 1 and a lower housing 2 fastened by bolts, a hole for allowing the rotating structure 5 to pass through is formed between the upper housing 1 and the lower housing 2, and the lock pin 3 is installed in the upper housing 1. The lock rod extends into the rotating structure 5, one end of the lock rod extends out of the rotating structure 5, and the end of the lock rod extending out of the rotating structure 5 is smoothly transitionally connected to the part of the lock rod located in the rotating structure 5, and both the through groove and the locking groove do not allow the end of the lock rod extending out of the rotating structure 5 to pass through, thereby improving the stability of the lock rod matching both the through groove and the locking groove.

[0039] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, more specifically, the locking structure includes a spring 7, a stopper 8 and a bottom cover 9. The bottom cover 9 is fixedly mounted on the end of the housing away from the lock pin 3. Both the spring 7 and the stopper 8 are arranged in the housing. The outer contour of the stopper 8 is a polyhedron. A groove matching the stopper 8 is formed on the side of the bottom cover 9 close to the stopper 8, and a through hole is formed in the middle of the groove. One end of the spring 7 contacts the inner wall of the housing, and the other end of the spring 7 contacts the stopper 8. The end of the rotating structure 5 away from the lock pin 3 cooperates with the stopper 8 to lock or unlock.

[0040] Furthermore, the size of the through hole is smaller than the cross-sectional size of the stop block 8 , and the size of the through hole is larger than the cross-sectional size of one end of the rotating structure 5 extending into the stop block 8 .

[0041] Furthermore, a polyhedral through groove is formed in the middle of the stop block 8, the shape of the end of the rotating structure 5 away from the locking pin 3 is adapted to the through groove, and the end of the rotating structure 5 away from the locking pin 3 is slidably matched with the through groove.

[0042] By adapting the shape of the stop block 8 to the end of the rotating structure 5 away from the locking pin 3, and the groove to the outer contour of the stop block 8, the rotating structure 5 is locked to prevent the rotating structure 5 from rotating. When the stop block 8 is pushed into the lower housing 2 by external force until the stop block 8 is completely separated from the end of the rotating structure 5 away from the locking pin 3, the locking structure releases the locking of the rotating structure 5, allowing the rotating structure 5 to rotate. The spring 7 can realize the reset of the stop block 8, which improves the convenience of battery replacement.

[0043] A shaft sleeve 6 is provided between the rotating structure 5 and the bottom wall of the upper shell 1 , which helps to improve the rotation stability of the rotating structure 5 .

[0044] A rubber gasket 4 is provided between the locking pin 3 and the housing to ensure the sealing between the battery and the vehicle after locking and to provide axial tolerance during battery replacement.

[0045] The utility model also provides an electric vehicle, such as Figure 1 As shown, it also includes a battery lifting ear 10, the battery lifting ear 10 is fixedly connected to the shell, and the locking pin 3 is connected to the vehicle body.

[0046] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A battery replacement locking assembly, characterized in that: The invention comprises a housing, a locking pin (3), a rotating structure (5) and a locking structure, wherein the locking pin (3) extends into the housing from one end of the housing, the rotating structure (5) and the locking structure are both arranged in the housing, and the rotating structure (5) allows the end of the locking pin (3) extending into the housing to enter; The cooperation between the rotating structure (5) and the locking pin (3) includes a locked state and an unlocked state. The rotating structure (5) rotates to switch between the locked state and the unlocked state. In the unlocked state, the locking pin (3) can enter or leave the rotating structure (5). The locking structure cooperates with the rotating structure (5) and locks the rotating structure (5) or allows the rotating structure (5) to rotate.

2. The battery replacement locking assembly according to claim 1, characterized in that: The rotating structure (5) extends from one end of the shell to the other end of the shell in the shell, the rotating structure (5) comprises a through slot whose length direction is parallel to the length direction of the shell, the rotating structure (5) also comprises a locking slot whose length direction is perpendicular to the length direction of the shell, and the through slot and the locking slot are connected; One end of the lock pin (3) extending into the housing comprises a lock rod whose length direction is perpendicular to the length direction of the housing, and the lock rod is respectively slidably matched with the passing groove and the locking groove.

3. The battery replacement locking assembly according to claim 2, characterized in that: The locking rod extends into the rotating structure (5), one end of the locking rod extends out of the rotating structure (5), and both the passing groove and the locking groove do not allow the end of the locking rod extending out of the rotating structure (5) to pass through.

4. The battery replacement locking assembly according to claim 1, characterized in that: The locking structure comprises a spring (7), a stop block (8) and a bottom cover (9); the bottom cover (9) is fixedly mounted on an end of the housing away from the locking pin (3); the spring (7) and the stop block (8) are both arranged in the housing; the outer contour of the stop block (8) is a polyhedron; a groove matching the stop block (8) is formed on a side surface of the bottom cover (9) close to the stop block (8); and a through hole is formed in the middle of the groove; One end of the spring (7) contacts the inner wall of the housing, and the other end of the spring (7) contacts the stop block (8); One end of the rotating structure (5) away from the locking pin (3) cooperates with a stop block (8) to lock or unlock.

5. The battery replacement locking assembly according to claim 4, characterized in that: The size of the through hole is smaller than the cross-sectional size of the stop block (8), and the size of the through hole is larger than the cross-sectional size of one end of the rotating structure (5) extending into the stop block (8).

6. The battery replacement locking assembly according to claim 4, characterized in that: A polyhedral through groove is formed in the middle of the stop block (8); the shape of the end of the rotating structure (5) away from the locking pin (3) is adapted to the through groove, and the end of the rotating structure (5) away from the locking pin (3) is slidably matched with the through groove.

7. The battery replacement locking assembly according to claim 1, characterized in that: The housing comprises an upper housing (1) and a lower housing (2) which are fastened together, a hole for allowing a rotating structure (5) to pass through is formed between the upper housing (1) and the lower housing (2), and the locking pin (3) is mounted on the upper housing (1).

8. The battery replacement locking assembly according to claim 7, characterized in that: A shaft sleeve (6) is arranged between the rotating structure (5) and the bottom wall of the upper shell (1).

9. The battery replacement locking assembly according to claim 1, characterized in that: A rubber gasket (4) is provided between the lock pin (3) and the housing.

10. An electric vehicle, characterized in that: The battery replacement locking assembly according to any one of claims 1 to 9 further comprises a battery lifting ear (10), wherein the battery lifting ear (10) is fixedly connected to the shell, and the locking pin (3) is connected to the vehicle body.

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