CN118099649A

CN118099649A - Battery fixing device and battery module

Info

Publication number: CN118099649A
Application number: CN202211491352.2A
Authority: CN
Inventors: 杨境佑; 谷德政
Original assignee: Taipu Power New Energy Changshu Co ltd
Current assignee: Taipu Power New Energy Changshu Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2024-05-28

Abstract

The application provides a battery fixing device and a battery module. The battery fixing module comprises a locking piece, a battery module and an anti-falling assembly, wherein the locking piece is arranged in a tube body of the frame and is used for axially butt-jointing the battery module. The anti-falling component comprises a stop piece and a pressing piece which are arranged on the end face in a protruding mode, and an elastic piece which is longitudinally arranged on the locking piece. The pressing piece is positioned below the stop piece and provided with a pressing part, a pivot setting part and a pushing part. The pivot setting part is arranged between the pressing part and the pushing part and is transversely pivoted on the end surface. The elastic member forms a boss in an axial direction, which has a supporting surface. When the battery module is displaced downwards at the locking position, the stop piece is propped against the supporting surface, so that the battery module is maintained at the unlocking position; at this time, the pushing portion is forced to move toward the elastic member, so that the stopper is separated from the supporting surface.

Description

Battery fixing device and battery module

Technical Field

The application relates to a battery fixing device and a battery module for an electric bicycle.

Background

In order to make the appearance of the electric bicycle compact, the battery module may be disposed in the lower tube or the tube. However, when a user removes the battery module, the battery module losing the supporting force suddenly drops; if the user is not ready in advance, the battery module is damaged by falling down the ground.

Disclosure of Invention

In order to solve the above problems, an object of the present application is to provide a battery fixing device and a battery module.

The application provides a battery fixing device which comprises a locking piece, a battery module and an anti-falling assembly. The locking piece is arranged in the pipe body of the frame and is used for axially butt-jointing the battery modules. The anti-falling assembly comprises an end surface stop piece, a pressing piece and an elastic piece, wherein the end surface stop piece is arranged on the battery module in a protruding mode, the pressing piece is arranged below the stop piece, and the elastic piece is longitudinally arranged on the locking piece. The pressing piece is provided with a pressing part, a pivot setting part and a pushing part, wherein the pivot setting part is positioned between the pressing part and the pushing part and is transversely pivoted on the end face. The elastic member forms a boss in an axial direction, which has a supporting surface. When the battery module is displaced downwards at the locking position, the stop piece is propped against the supporting surface, so that the battery module is maintained at the unlocking position; when the battery module is at the unlocking position, the pressing part is used for being pressed towards the battery module so as to drive the pushing part to push towards the elastic piece, and the stop piece is separated from the supporting surface.

The application also provides a battery module which is used for axially butt-jointing the locking piece arranged in the tube body of the frame. The battery module comprises a stop piece which is arranged on the end face of the battery module and protrudes axially, and a pressing piece which is positioned below the stop piece. The pressing piece is provided with a pressing part, a pivot setting part and a pushing part, wherein the pivot setting part is positioned between the pressing part and the pushing part and is transversely arranged on the end face. When the battery module is displaced downwards at the locking position, the stop piece is propped against the supporting surface of the protruding part of the elastic piece longitudinally arranged on the locking piece, so that the battery module is maintained at the unlocking position; when the battery module is at the unlocking position, the pressing part is used for being pressed towards the battery module so as to drive the pushing part to push towards the elastic piece, and the stop piece is separated from the supporting surface.

In summary, when the battery module of the present application is docked and locked to the locking member, the elastic member provides sufficient supporting force for the stopper to prevent the battery module from falling. Furthermore, the pressing member for unlocking is designed on the battery module, not on the locking member, and the user can hold the battery module locally when unlocking; the possibility that the battery module falls down to the ground due to carelessness of a user can be avoided.

Drawings

Fig. 1 is an assembly view of a battery fixing device of the present application;

FIG. 2 is an assembled schematic view of the battery fixing device of the present application;

Fig. 3 is a schematic view of a battery module according to the present application;

FIG. 4 is a schematic view of the locking member of the present application;

FIG. 5 is an enlarged partial schematic view of an end face of a battery module in an embodiment;

Fig. 6 is a partially enlarged schematic illustration of an end face of a battery module in another embodiment;

fig. 7 to 10 are schematic views of the battery module according to the present application during the locking process;

fig. 11 to 14 are schematic views of the battery module according to the present application during an unlocking process.

Reference numerals illustrate: 100-locking parts; 110-an elastic member; 112-a boss; 114-a support surface; 116-a first bend; 118-a second bend; 120-screw holes; 130-limit grooves; 140-platform; 150-lockset; 160-a lock tongue; 170-an alignment member; 200-battery modules; 202-end face; 204-grooves; 300-stop; 302-inclined plane; 304-horizontal plane; 310-pressing piece; 312-pressing part; 314—a pivot; 316—a propulsion section; 320-alignment groove; 330-torsion spring; 332-coil part; 334-a fixed end; 336-torsion ends; 340-a spring; 400-battery holder.

Detailed Description

Embodiments of the present application will be further illustrated by the following description in conjunction with the associated drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts. In the drawings, the shape and thickness may be exaggerated for simplicity and convenience. It is to be understood that components not specifically shown in the drawings or described in the specification are in a form known to those of ordinary skill in the art. Many variations and modifications may be made by one of ordinary skill in the art in light of the disclosure herein.

Please refer to fig. 1 and 2, which are an assembly drawing and an assembly intention of the battery fixing module of the present application, respectively. The battery fixture includes a locking member 100, a battery module 200, and an anti-crash assembly. Both ends of the battery module 200 correspond to the locking member 100 and the battery holder 400, respectively. The locking member 100 and the battery holder 400 are respectively disposed at two ends in the tube of the electric bicycle, wherein the locking member 100 is used for axially abutting the battery module 200 to lock and carry the first end (as shown in fig. 2) of the battery module 200, and the battery holder 400 carries the second end of the battery module 200. The anti-drop assembly is a plurality of assemblies or structures disposed or formed on the first ends of the locking member 100 and the battery module 200; in other words, the anti-falling component may be an external component independent of the locking member 100 and the battery module 200, or an internal component or structure belonging to the two components, which is not a limitation of the present application. The anti-crash assembly provides for docking, securing and releasing of the locking member 100 in relative position with the battery module 200.

Next, please refer to fig. 3 and 4, which are schematic diagrams of the battery module and the locking member according to the present application, respectively. The anti-falling assembly includes a stopper 300, a pressing member 310, and an elastic member 110. The stopper 300 is disposed at the end surface 202 of the battery module 200 facing the locking member 100, and the stopper 300 protrudes in the axial direction. The pressing member 310 may be integrally provided directly under the stopper 300, may be partially provided at substantially the same height as the stopper 300, or may partially pass through the stopper 300 in the longitudinal direction. In other words, the present application does not limit the position of the pressing piece 310 in the longitudinal direction near one end of the stopper 300 as long as the stopper 300 and the pressing piece 310 correspond to each other in the longitudinal direction. The pressing member 310 has a pressing portion 312, a pivot portion 314, and a pushing portion 316. The pressing portion 312 is located at an end of the pressing member 310 away from the stopper 300, the pushing portion 316 is located at an end of the pressing member 310 close to the stopper 300, and the pivoting portion 314 is laterally pivoted on the end face 202 and located between the pressing portion 312 and the pushing portion 316. When the user unlocks the battery module 200, the pressing portion 312 is used to bear the force applied by the user, so that the pushing portion 316 moves toward the locking member 100 about the pivot portion 314.

On the other hand, the elastic member 110 is longitudinally disposed on the locking member 100, and forms a protrusion 112 in the axial direction. When the battery module 200 is axially abutted against the locking member 100, the lateral position of the boss 112 is the same as or corresponds to the lateral positions of the stopper 300 and the pressing member 310. The boss 112 has a support surface 114, and the support surface 114 faces upward. In some embodiments, the elastic member 110 is a sheet body, which is bent to form the protruding portion 112 and the supporting surface 114. Preferably, the first end of the sheet body is provided with a screw hole 120, and the locking member 100 is provided with an internal thread (not shown), so that the first end of the sheet body can be locked on the locking member 100 by a screw, and the second end of the sheet body is a free end relatively moving in the axial direction. Preferably, the bottom of the locking member 100 is further provided with a limit groove 130, and the limit groove 130 is used for accommodating the second end of the sheet. The limiting groove 130 can limit the movable range of the second end in the axial direction, so that the second end can be abutted against the inner wall of the limiting groove 130 when pushed outwards, and permanent deformation caused by excessive displacement in the axial direction is avoided.

Although the protrusions 112 of the elastic sheet can provide a force for supporting the battery module 200, the elastic sheet may be permanently deformed to lose the supporting force due to the long-term use and the mass of the battery module 200. Thus, in some embodiments, the drop-resistant assembly further includes a platform 140 formed or disposed on the locking member 100, the platform 140 positioned to correspond to the resilient tab, and the platform 140 having the same shape in the axial direction as the support surface 114 of the boss 112. Whether the tab 112 of the spring is fully or partially seated against the platform 140, the platform 140 supports the mass of the battery module 200 across the spring, preventing permanent deformation of the spring. For the foregoing partial leaning, in some embodiments, the protruding portion 112 further has a first bending portion 116 and a second bending portion 118, which are respectively located at one end of the supporting surface 114 near the locking member 100 and the other end far from the locking member 100. The first bending portion 116 abuts against the locking member 100 or the platform 140, and the second bending portion 118 abuts against the stop member 300 to support the battery module 200. In other words, even if only a portion of the protrusion 112 abuts against the stopper 300, the other portion of the protrusion 112 may disperse the mass of the battery module 200, thereby preventing the elastic member 110 from being permanently deformed. In some embodiments, the included angle of the first bend 116 is inversely proportional to the supporting force of the supporting surface 114, e.g., the included angle of the first bend 116 is about 80 degrees or 85 degrees.

In some embodiments, the stop 300 has a ramp 302 and a horizontal surface 304. The inclined surface 302 faces upward and is located on a side of the stopper 300 different from the pressing piece 310, and the horizontal surface 304 faces downward and is located on a side of the stopper 300 facing the pressing piece 310. During the docking of the battery module 200 to the locking member 100, the inclined surface 302 is configured to contact and axially push the protruding portion 112 of the locking member 100, and the horizontal surface 304 is configured to longitudinally abut against the supporting surface 114 of the protruding portion 112 after the protruding portion 112 is axially reset.

In some embodiments, the end face 202 of the battery module 200 is further provided with an alignment groove 320 longitudinally, the locking member 100 is provided with an alignment member 170, and the alignment groove 320 and the alignment member 170 cooperate with each other to correspond to each other in a lateral position. When the battery module 200 is abutted against the locking member 100, the alignment member 170 can be longitudinally displaced in the alignment groove 320 without being laterally displaced, so as to prevent the battery module 200 from tilting or shifting. Similarly, the end surface 202 may also be provided with an alignment member 170, and the locking member 100 is correspondingly provided with an alignment slot 320 longitudinally. The alignment member 170 may be in the form of a longitudinally extending strip or block so long as it is axially convex. Preferably, the locking member 100 further has a lock 150 and a locking tongue 160, and the end surface 202 is further provided with a groove 204. Lock 150 is coupled to lock tongue 160 and is configured to control the axial reciprocation of lock tongue 160. The groove 204 is disposed between the alignment groove 320 and the pressing member 310, and corresponds to the locking tongue 160. Lock 150, locking tongue 160 and groove 204 are used to provide a second section of battery module 200 with locking. Specifically, when the battery module 200 is abutted to the locking member 100 and the protrusion 112 of the elastic piece is located below the stop member 300 by a distance, the recess 204 receives the locking tongue 160 and obtains an upward supporting force, thereby limiting the position of the battery module 200.

Fig. 5 and 6 are partial enlarged views of the end surfaces of the battery module according to various embodiments. In some embodiments, a torsion spring 330 is also provided on the end face 202 of the battery module 200. The torsion spring 330 has a coil portion 332, a fixed end 334 and a torsion end 336 extending from two ends of the coil portion 332, wherein the coil portion 332 and the fixed end 334 are fixed on the end surface 202, and the torsion end 336 is fixed in the pivot portion 314. In some embodiments, the battery module 200 further includes at least one spring 340 having one end fixed to the end surface 202 and the other end corresponding to or fixed to the pressing portion 312. The spring 340 may be an extension spring, a compression spring, or a coil spring. After the pressing portion 312 is forced and the pushing portion 316 rotates relative to the pivot portion 314, the pressing portion 312 can be restored to the original position by the torsion spring 330 or the spring 340.

Next, the process of docking the battery module 200 to the locking member 100 and completing the locking is described with reference to fig. 7 to 10. The battery module and the locking member of fig. 7 to 10 are cross-sectional views taken along the line AA' of fig. 3 and 4, respectively. As shown in fig. 7, after the second end of the battery module 200 is supported on the battery holder, the first end of the battery module 200 is docked to the locking member 100 from bottom to top. As shown in fig. 8, as the battery module 200 continues to move upward, the protrusion 112 of the elastic member 110 abuts against the protruding portion of the stopper 300 and gradually retreats toward the locking member 100 in the axial direction. As shown in fig. 9, until the boss 112 no longer abuts the protruding portion of the stopper 300, the boss 112 is reset toward the battery module 200 in the axial direction, and finally, the stopper is located above the boss 112 and stably abuts against the supporting surface 114 of the boss 112 downward by the mass of the battery module 200, which is defined as an unlock position. Battery module 200 and locking member 100 may also be provided with a second stage of locking, such as locks 150, locking tongue 160 and groove 204 described in the previous embodiments. Referring to fig. 10, as the battery module 200 moves further upward, the stopper no longer abuts against the supporting surface 114 of the protruding portion 112, which is defined as a locking position. On the other hand, the tongue 160 is abutted against the end face 202 and gradually retreats toward the locking member 100 in the axial direction. Until the tongue 160 is at the same level as the groove 204, at which point the tongue 160 no longer abuts the end face 202 and is axially reset toward the groove 204. Finally, the groove 204 accommodates the tongue 160 and is firmly supported on the tongue 160 downward by the mass of the battery module 200.

Next, a process of unlocking the battery module 200 and disengaging the locking member 100 will be described. If the second stage locking is provided with the locking member 100 and the battery module 200, the locking tongue 160 needs to be disengaged from the groove 204 to unlock the second stage locking before the first stage locking can be released. Please refer to fig. 11 and 12, which are cross-sectional views along the BB' line of fig. 3 and 4, respectively. As shown in fig. 11, the recess 204 accommodates the latch tongue 160, and the battery module 200 is firmly supported on the latch tongue 160 by its own mass, which is in the second stage locked state. As shown in fig. 12, when the user inserts the key to rotate the lock 150, the lock 150 will link the lock tongue 160, so that the lock tongue 160 moves back toward the locking member 100 in the axial direction to disengage from the groove 204. At this time, the battery module 200 loses the supporting force provided by the latch tongue 160 and drops down. Please refer to fig. 13 and 14, which are cross-sectional views along the line AA' of fig. 3 and 4, respectively. As shown in fig. 13, after the battery module 200 is displaced downward from the locked position, the stopper 300 is abutted against the support surface 114 of the boss 112, so that the battery module 200 is maintained in the unlocked position. By the cooperation of the stopper 300 and the boss 112, the battery module 200 is fixed to the locking member 100 without falling down the ground and causing damage even if the user does not hold the battery module 200 with the other hand during the rotation of the lock 150. As shown in fig. 14, in order to unlock the first stage of the battery module 200, the user must apply a force to the pressing portion 312 of the pressing member 310, so that the pushing portion 316 pushes the protruding portion 112 of the elastic member 110 to retreat toward the locking member 100 until the protruding portion 112 is disengaged from the stopper 300. This means that the user is likely to instinctively hold the battery module 200 with the left hand while holding the pressing part 312 of the pressing member 310 with the thumb of the left hand. Therefore, even if the battery module 200 loses the supporting force provided by the protrusion 112 and falls down, the left palm of the user holds the battery module 200. In other words, since the pressing member 310 for unlocking is designed on the end surface 202 of the battery module 200, not the locking member 100, the user may hold the battery module 200 while unlocking; such a design effectively reduces the possibility that the battery module 200 falls down to the ground due to the carelessness of the user.

The foregoing description is only illustrative of the preferred embodiments of the present application and is not to be construed as limiting the scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a battery fixing device, includes locking piece, battery module and prevents falling the subassembly, locking piece sets up in the body of frame, locking piece axial butt joint battery module, its characterized in that, prevent falling the subassembly and include:

the stop piece is arranged on the end face of the battery module, which faces the locking piece, in a protruding mode;

The pressing piece is positioned below the stop piece and is provided with a pressing part, a pivoting part and a pushing part, and the pivoting part is positioned between the pressing part and the pushing part and is transversely pivoted on the end face; and

An elastic member longitudinally disposed on the locking member and forming a boss in an axial direction, the boss having a supporting surface, wherein,

When the battery module is displaced downwards at the locking position, the stop piece is propped against the supporting surface, so that the battery module is maintained at the unlocking position;

when the battery module is at the unlocking position, the pressing part is used for being pressed towards the battery module so as to link the pushing part to push towards the elastic piece, so that the stop piece is separated from the supporting surface.

2. The battery fixing device according to claim 1, wherein one side of the stopper facing the pressing member has a horizontal plane and the other side has a slope, wherein,

When the battery module is displaced upwards, the stop piece pushes the elastic piece to close to the locking piece, the protruding portion moves along the inclined plane until the battery module is located at the locking position, the elastic piece is reset, and the supporting surface is located below the horizontal plane.

3. The battery fixing device according to claim 1, wherein the elastic member is a sheet body, the sheet body is bent to form the protruding portion and the supporting surface, a first end of the sheet body is fixed to the locking member, and a second end of the sheet body is a free end.

4. The battery fixing device according to claim 3, wherein a limiting groove is formed below the bottom of the locking member corresponding to the elastic member, and the second end of the sheet body moves in the limiting groove.

5. The battery holder of claim 1, wherein the drop-resistant assembly further comprises a platform disposed on the locking member, wherein a portion of the resilient member rests against the platform when the stop member is seated against the support surface.

6. The battery holder of claim 1, wherein the protrusion further comprises a first bending portion and a second bending portion, the first bending portion is located at one end of the support surface near the locking member, and the second bending portion is located at the other end of the support surface far from the locking member.

7. The battery holder of claim 6, wherein the angle of the first bend is inversely proportional to the supporting force of the supporting surface.

8. The battery fixing device according to claim 1, wherein the pivot portion is provided with a torsion spring.

9. The battery fixing device according to claim 1, wherein at least one spring is provided between the pressing portion and the end face.

10. A battery module for axially interfacing with a locking member disposed within a tube of a vehicle frame, the battery module comprising:

The stop piece is arranged on the end face of the battery module, facing the locking piece, and axially protrudes; and

The pressing piece is positioned below the stop piece and is provided with a pressing part, a pivot setting part and a pushing part, the pivot setting part is positioned between the pressing part and the pushing part and is transversely arranged on the end face, wherein,

When the battery module is displaced downwards at the locking position, the stop piece is propped against the supporting surface of the protruding part of the elastic piece longitudinally arranged on the locking piece, so that the battery module is maintained at the unlocking position;

11. The battery module of claim 10, wherein the stopper has a slope on a side different from the pressing member and a horizontal plane on a side facing the pressing member, wherein,

12. The battery module according to claim 10, wherein the pivot portion is provided with a torsion spring.

13. The battery module of claim 10, wherein at least one spring is disposed between the pressing portion and the end face.

14. The battery module of claim 10, further comprising an alignment slot longitudinally defined in the end face, the alignment slot cooperating with an alignment member disposed on the locking member for limiting lateral displacement of the battery module relative to the locking member.

15. The battery module of claim 14, further comprising a groove formed in the end surface, the groove corresponding to the locking position, cooperating with a locking tongue formed on the locking member, and located between the alignment groove and the pressing member, for receiving the locking tongue, so that the locking member and the battery module are fixed in relative positions.