A quick-change locking mechanism assembly for battery replacement and electric vehicle

Abstract

The present disclosure relates to the field of battery replacement for electric vehicles. The present disclosure provides a quick-change locking mechanism assembly for battery replacement and an electric vehicle, comprising a lock pin end (1) for fixed connection with a vehicle body and a battery end (2) for fixed connection with a battery pack, one end of the lock pin end (1) can extend into the battery end (2) along the axial direction, the battery end (2) can unlockably lock the lock pin end (1), and a buffer (3) is provided between the lock pin end (1) and the battery end (2). The quick-change locking mechanism assembly for battery replacement provided by the present disclosure can solve the problem of making the battery pack replaceable without damaging the vehicle body.

Description

Technical Field

[0001] The present disclosure relates to the field of battery replacement for electric vehicles, and in particular, to a quick-change locking mechanism assembly for battery replacement and an electric vehicle. Background Art

[0002] Electric vehicles are cars that are powered entirely by rechargeable batteries. Due to the serious disadvantages of various types of batteries, such as high price, short life, large size and weight, and long charging time, electric vehicles have been limited to certain specific applications and the market is relatively small.

[0003] In order to expand the scope of use of electric vehicles, battery packs need to provide power energy for electric vehicles for a long time. However, battery packs generally have the disadvantages of long charging time and insufficient storage capacity to meet the needs of long-term driving. Therefore, how to make the battery pack replaceable without damaging the vehicle body has become one of the key research directions. Summary of the invention

[0004] The purpose of the present disclosure is to provide a quick-change locking mechanism assembly for battery replacement, which can solve the problem of how to make the battery pack replaceable without damaging the vehicle body.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a quick-change locking mechanism assembly for battery replacement, including a locking pin end for fixedly connected to a vehicle body and a battery end for fixedly connected to a battery pack, one end of the locking pin end can extend axially into the battery end, and the battery end can unlockably lock the locking pin end, and a buffer is arranged between the locking pin end and the battery end.

[0006] Optionally, the buffer member is configured as an elastic member, and the elastic member is capable of elastic deformation in the axial direction.

[0007] Optionally, the buffer is formed as a rubber pad, an insertion hole is provided on the buffer, and the lock pin end can be inserted into the battery end through the insertion hole.

[0008] Optionally, a compression hole is formed on the rubber pad, and the compression hole radially extends from the insertion hole and penetrates the rubber pad.

[0009] Optionally, the buffer is detachably connected to a surface of the battery end facing the locking pin end.

[0010] Optionally, a connecting piece is provided on the buffer member, and a connecting groove for engaging with the connecting piece is provided on the battery end.

[0011] Optionally, the connecting member is configured as a snap-in block arranged circumferentially along the inner wall of the buffer, the snap-in block extends radially inward from the inner wall of the buffer, a connecting block is provided on a side of the battery end facing the locking pin end, the connecting block is provided with a center hole for inserting the locking pin end, the connecting block can extend into the insertion hole, and the connecting groove is provided on a side of the connecting block facing the buffer for snapping with the snap-in block.

[0012] Optionally, a first chamfer is provided at the opening of the central hole, and a second chamfer is provided on an outer wall of the connecting block facing the locking pin end.

[0013] Optionally, the lock pin end includes a vehicle body lock pin, and the battery end includes a locking piece that can be attracted by an external magnetic field, an elastic piece for supporting the locking piece, and a lock sleeve with a conical inner cavity. When there is no external magnetic field, the elastic piece supports the locking piece to be located in a locking position at a narrower part of the conical inner cavity. When an external magnetic field is applied, the locking piece overcomes the elastic force of the elastic piece under the attraction of the magnetic field and moves to an unlocking position at a wider part of the conical inner cavity. When in the locked position, the locking piece locks the vehicle body lock pin under the limit of the inner wall of the conical inner cavity. When in the unlocked position, the limit of the inner wall of the conical inner cavity on the locking piece is released, and the locking piece releases the vehicle body lock pin.

[0014] According to a second aspect of the present disclosure, there is provided an electric vehicle, wherein the vehicle body is fixedly connected to the lock pin end, and the battery pack is fixedly connected to the battery end.

[0015] Through the above technical solution, when the old battery pack needs to be removed from the vehicle body, the battery end unlocks the lock pin end, and the lock pin end is taken out from between the buffer and the battery end to complete the unlocking; when the battery pack needs to be installed on the vehicle body, the lock pin end is inserted into the battery end, and the battery end locks the lock pin end to complete the installation. During the operation of the vehicle, the buffer acts as a buffer between the lock pin end and the battery end, reducing the possibility of collision between the lock pin end and the battery end, reducing the damage to the vehicle body caused by shaking, and facilitating the replacement of the battery pack without damaging the vehicle body.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of a quick-change locking mechanism assembly for battery replacement according to an embodiment of the present disclosure;

[0019] Figure 2 It is a cross-sectional view of a quick-change locking mechanism assembly for battery replacement according to an embodiment of the present disclosure.

[0020] Description of Reference Numerals

[0021] 1. Lock pin end; 2. Battery end; 201. Locking piece; 202. Elastic piece; 203. Lock sleeve; 204. Conical inner cavity; 3. Buffer piece; 4. Insertion hole; 5. Compression hole; 6. Connecting piece; 7. Connecting groove; 8. Connecting block; 9. Center hole; 10. First chamfer; 11. Second chamfer. DETAILED DESCRIPTION

[0022] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0023] In the present disclosure, unless otherwise specified, directional terms such as "inner wall, outer wall" refer to the wall facing toward or away from the body lock pin; "axial" refers to the length direction along the body lock pin, and "circumferential" refers to the direction of circular motion with the "radial" as the center point.

[0024] Reference Figure 1 , Figure 2 In order to achieve the above-mentioned purpose, the present invention provides a quick-change locking mechanism assembly for battery replacement, including a lock pin end 1 for fixedly connected to the vehicle body and a battery end 2 for fixedly connected to the battery pack. One end of the lock pin end 1 can extend axially into the battery end 2, and the battery end 2 can unlockably lock the lock pin end 1. A buffer 3 is arranged between the lock pin end 1 and the battery end 2.

[0025] Through the above technical solution, when the old battery pack needs to be removed from the vehicle body, the battery terminal 2 unlocks the lock pin end 1, and the lock pin end 1 is taken out from between the buffer 3 and the battery terminal 2 to complete the unlocking; when the battery pack needs to be installed on the vehicle body, the lock pin end 1 is inserted into the battery terminal 2, and the battery terminal 2 locks the lock pin end 1 to complete the installation. During the operation of the vehicle, the buffer 3 acts as a buffer between the lock pin end 1 and the battery terminal 2, reducing the possibility of collision between the lock pin end 1 and the battery terminal 2, reducing the damage to the vehicle body caused by shaking, and facilitating the replacement of the battery pack without damaging the vehicle body.

[0026] As an optional embodiment, the buffer member 3 is configured as an elastic member 202, and the elastic member 202 can be elastically deformed in the axial direction. After the battery pack is installed in the vehicle, the battery pack shakes during driving, and the elastic member 202 can be deformed in the axial direction to absorb the impact force of the battery pack in the axial direction, thereby reducing the possibility of the battery pack hitting the vehicle during shaking, and reducing the damage to the vehicle body by the detachable structure of the battery pack.

[0027] As an optional embodiment, the buffer 3 is formed as a rubber pad, and an insertion hole 4 is formed on the buffer 3, and the lock pin end 1 can be inserted into the battery end 2 through the insertion hole 4. The rubber pad can absorb the impact force caused by the shaking of the battery pack and reduce the damage caused by the buffer 3 itself to the vehicle body.

[0028] As an optional embodiment, a compression hole 5 is provided on the rubber pad, and the compression hole 5 extends radially from the insertion hole 4 and penetrates the rubber pad. The compression hole 5 is provided on the rubber pad to increase the axial deformation capacity of the rubber pad, improve the rubber pad's ability to absorb the impact force of the battery pack, and further enhance the protection ability of the buffer 3 to the vehicle body.

[0029] Reference Figure 1 , Figure 2 As an optional embodiment, the buffer 3 is detachably connected to the side of the battery terminal 2 facing the lock pin end 1. When the buffer 3 is old, it is convenient to remove the old buffer 3 and replace it with a new buffer 3, thereby reducing the possibility that the buffer 3 cannot absorb the impact of the battery pack due to oldness.

[0030] As an optional embodiment, a connector 6 is provided on the buffer 3, and a connecting groove 7 for engaging with the connector 6 is provided on the battery terminal 2. The buffer 3 is mounted on the battery terminal 2 through the connector 6 and the connecting groove 7, so that the buffer 3 can protect the vehicle body during driving.

[0031] As an optional embodiment, the connector 6 is configured as a snap-in block disposed circumferentially along the inner wall of the buffer 3, the snap-in block extends radially inward from the inner wall of the buffer 3, a connector block 8 is disposed on the side of the battery terminal 2 facing the lock pin end 1, the connector block 8 is provided with a center hole 9 for inserting the lock pin end 1, the connector block 8 can extend into the insertion hole 4, and a connection groove 7 is disposed on the side of the connector block 8 facing the buffer 3, for snapping with the snap-in block. When the buffer 3 needs to be installed on the battery terminal 2, the snap-in block is snapped into the connection groove 7, which facilitates the installation of the buffer 3 on the battery terminal 2, and the lock pin end 1 can be inserted into the battery terminal 2 through the center hole 9, which facilitates the connection between the lock pin end 1 and the battery terminal 2.

[0032] As an optional embodiment, a first chamfer 10 is provided at the opening of the center hole 9, and a second chamfer 11 is provided on an outer wall of the connecting block 8 facing the lock pin end 1. The first chamfer 10 provides a guide for the lock pin end 1 when the lock pin end 1 is inserted into the battery end 2, and the second chamfer 11 provides a guide for the buffer member 3 when the buffer member 3 is removed or installed, so as to facilitate the removal of the buffer member 3.

[0033] Reference Figure 1 , Figure 2As an optional embodiment, the lock pin end 1 includes a body lock pin, and the battery end 2 includes a locking member 201 that can be attracted by an external magnetic field, an elastic member 202 for supporting the locking member 201, and a lock sleeve 203 with a conical inner cavity 204. In this embodiment, the elastic member 202 is configured as a compression spring, and the locking member 201 is configured as a accommodating disk and a locking bead. The accommodating disk can move axially under the action of a magnetic field, and the locking bead can move radially in the accommodating disk. When there is no external magnetic field, the elastic member 202 supports the locking member 201 to be located in a locking position at a narrower part of the conical inner cavity 204. When an external magnetic field is applied, the locking member 201 overcomes the elastic force of the elastic member 202 under the attraction of the magnetic field and moves to an unlocking position at a wider part of the conical inner cavity 204. When in the locked position, the locking member 201 locks the vehicle body lock pin under the limit of the inner wall of the conical inner cavity 204. When in the unlocked position, the limit of the inner wall of the conical inner cavity 204 on the locking member 201 is released, and the locking member 201 releases the vehicle body lock pin. When the old battery pack needs to be removed, an external magnetic field is set on the side of the battery terminal 2 away from the vehicle body. The external magnetic field attracts the accommodating disk to overcome the resistance of the compression spring and drive the locking bead to move downward. The accommodating disk enters the wider area of ​​the conical cavity, and the space for the locking bead to move in the radial direction is increased. The binding force of the locking bead on the vehicle body locking pin is weakened, and the vehicle body locking pin is pulled out to unlock the old battery pack. When installing a new battery pack, the external magnetic field is canceled, the battery pack is lifted with external force, and the vehicle body locking pin is inserted into the battery terminal 2. The locking member 201 overcomes the elastic force of the compression spring under the action of the external force. Downward, the locking bead displaces radially, and after the locking pin body is inserted, the thrust of the external force on the locking piece 201 is weakened. The locking piece 201 is reset to the narrower area of ​​the conical cavity under the action of the compression spring, and the locking bead clamps the groove under the pressure of the inner wall of the conical cavity to lock the body lock pin, thereby realizing the connection between the locking pin end 1 and the battery end 2, and installing the new battery pack on the body to realize convenient replacement of the battery pack. During the driving of the vehicle, the buffer 3 absorbs the impact force caused by the shaking of the battery pack, thereby reducing the damage of the battery pack to the body without affecting the replaceability of the battery pack.

[0034] According to another aspect of the present disclosure, an electric vehicle is provided, wherein a vehicle body is fixedly connected to a lock pin end 1 , and a battery pack is fixedly connected to a battery end 2 .

[0035] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0037] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A quick-change locking mechanism assembly for battery replacement, characterized in that: The battery pack comprises a locking pin end (1) for fixedly connecting to a vehicle body, and a battery end (2) for fixedly connecting to a battery pack, wherein one end of the locking pin end (1) can extend into the battery end (2) along the axial direction, and the battery end (2) can unlockably lock the locking pin end (1), a buffer (3) is arranged between the locking pin end (1) and the battery end (2), a connecting member (6) is arranged on the buffer (3), and the battery end (2) is provided with a connecting groove (7) for clamping with the connecting member (6), and the connecting member (6) is arranged along the axial direction. A clamping block is circumferentially arranged on the inner wall of the buffer (3), and the clamping block extends radially inward from the inner wall of the buffer (3). A connecting block (8) is arranged on a side of the battery end (2) facing the lock pin end (1), and the connecting block (8) is provided with a center hole (9) for inserting the lock pin end (1) into the battery end (2). The connecting block (8) can extend into the insertion hole (4) of the buffer (3). The connecting groove (7) is arranged on a side of the connecting block facing the buffer (3) and is used for clamping with the clamping block. The center hole (9) has a first chamfer (10) at its opening, and the connection block (8) has a second chamfer (11) on its outer wall facing the lock pin end (1). The lock pin end (1) includes a vehicle body lock pin, and the battery end (2) includes a locking member (201) that can be attracted by an external magnetic field, an elastic member (202) for supporting the locking member (201), and a lock sleeve (203) having a conical inner cavity (204). When there is no external magnetic field, the elastic member (202) supports the locking member (201) to be located in the conical inner cavity. When an external magnetic field is applied, the locking member (201) overcomes the elastic force of the elastic member (202) under the attraction of the magnetic field and moves to the unlocking position at the wider part of the conical inner cavity (204). When located at the locking position, the locking member (201) locks the body lock pin under the limit of the inner wall of the conical inner cavity (204). When located at the unlocking position, the limit of the locking member (201) by the inner wall of the conical inner cavity (204) is released, and the locking member (201) releases the body lock pin.

2. The quick-change locking mechanism assembly for battery replacement according to claim 1 is characterized in that: The buffer member (3) is configured as an elastic member, and the elastic member is capable of elastic deformation in the axial direction.

3. The quick-change locking mechanism assembly for battery replacement according to claim 2 is characterized in that: The buffer member (3) is formed as a rubber pad, an insertion hole (4) is provided on the buffer member (3), and the lock pin end (1) can be inserted into the battery end (2) through the insertion hole (4).

4. The quick-change locking mechanism assembly for battery replacement according to claim 3 is characterized in that: A compression hole (5) is provided on the rubber pad, and the compression hole (5) extends radially from the insertion hole and penetrates the rubber pad.

5. The quick-change locking mechanism assembly for battery replacement according to claim 1 is characterized in that: The buffer component (3) is detachably connected to a side of the battery end (2) facing the lock pin end (1).

6. An electric vehicle, comprising a vehicle body and a battery pack, characterized in that: The electric vehicle comprises the quick-change locking mechanism assembly for battery replacement according to any one of claims 1 to 5, the vehicle body is fixedly connected to the lock pin end (1), and the battery pack is fixedly connected to the battery end (2).

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