Battery assembly

A battery assembly and battery technology, applied in battery pack components, electrical components, circuits, etc., can solve problems such as battery damage, battery drop, inconvenience, etc.

Pending Publication Date: 2022-02-22
DARFON ELECTRONICS (SUZHOU) CO LTD +1
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AI-Extracted Technical Summary

Problems solved by technology

However, when the user disassembles the battery, it is usually necessary to hold the battery with one hand, and then unlock it with the other hand, so as to avoi...
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Method used

[0036] The present invention provides a battery assembly, which can be applied to electric bicycles, but not limited thereto. The battery assembly of the present invention can be applied to any device requiring a two-stage disassembly operation, so as to provide a safe and convenient way to disassemble the battery assembly. The structure and operation of each component of the battery assembly according to the embodiment of the present invention will be described in detail below with reference to the drawings.
[0053] As shown in the partial enlarged view of Fig. 6A and Fig. 6B, when the lock 220 changes from the locked state to the unlocked state, the drive shaft 224 moves toward the lock body 222 (i.e. retracts), so as to drive the locking member 210 along the unlocking The engaging state is released by moving away from the first engaging portion 122 in the direction D1 , and the battery unit 10 moves along the disengaging direction D2 from the first position to the second position where the locking member 210 is engaged with the second engaging portion 124 . For example, when the locking member 210 is disengaged from the first engaging portion 122, the battery unit 10 can move downward relative to the battery holder 20 by gravity (and the restoring force of the elastic member 240), and by The second engaging portion 124 is engaged with the locking member 210 and positioned at the second position. Specifically, the second locking portion 124 extends from the side of the locking portion 212 in the extending direction (ie, the unlocking direction D1) toward the locking portion 212 to engage the locking portion 212, so that the second locking portion 124 is in the unlocking direction. The thickness of the D1 can be adjusted according to actual needs, thereby effectively reducing the engaging space required between the battery unit 10 and the battery holder 20 . In this embodiment, as shown in FIGS. 6A and 6B , when the locking member 210 is disengaged from the first engaging portion 122, the elastic ...
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Abstract

The invention discloses a battery assembly. The battery assembly comprises a battery holder and a battery unit detachably arranged on the battery holder. The battery unit comprises a battery, a first clamping part and a second clamping part. The first clamping part and the second clamping part are arranged at the end of the battery, and the second clamping part can rotate along the end face of the end. The battery holder comprises a clamping piece which is selectively clamped to the first clamping part or the second clamping part so as to position the battery unit at the first position or the second position. When the clamping piece and the first clamping part move relatively in the unlocking direction to release clamping, the battery unit moves from the first position to the second position where the clamping piece is clamped to the second clamping part in the disengaging direction, the second clamping part is allowed to rotate along the end face to release clamping with the clamping piece, and the battery unit is moved again in the disengaging direction to disengage from the battery holder. The battery assembly can be applied to any device needing two-section type disassembly operation, and the battery assembly can be disassembled in a safe and convenient mode.

Application Domain

Cell component details

Technology Topic

Battery holderEngineering +4

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  • Battery assembly
  • Battery assembly
  • Battery assembly

Examples

  • Experimental program(1)

Example Embodiment

[0035] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are given in conjunction with the embodiments.
[0036] The present invention provides a battery assembly, which can be applied to an electric bicycle, but is not limited thereto. The battery assembly of the present invention can be applied to any device requiring a two-stage disassembly operation, so as to provide a safe and convenient way to disassemble the battery assembly. The structure and operation of each element of the battery assembly according to the embodiment of the present invention will be described in detail with reference to the drawings.
[0037] figure 1 It is a three-dimensional schematic diagram of a battery assembly according to an embodiment of the present invention. like figure 1 As shown, the battery assembly 1 includes a battery cell 10 and a battery holder 20 . The battery unit 10 is detachably arranged on the battery holder 20 . The battery unit 10 includes a battery 110 , a first engaging portion 122 and a second engaging portion 124 . The first engaging portion 122 and the second engaging portion 124 are disposed on the end portion 112 of the battery 110 , and the second engaging portion 124 can rotate along the end surface 1121 of the end portion 112 . The battery holder 20 includes a locking member 210 . The locking member 210 can selectively engage with the first engaging portion 122 or the second engaging portion 124 to position the battery unit 10 at the first position or the second position. When the locking member 210 and the first engaging portion 122 are along the unlocking direction D1 (marked at image 3 ) when the relative movement releases the engagement, the battery unit 10 moves along the disengagement direction D2 (marked at Figure 2A ) moves from the first position to the second position where the locking member 210 is engaged with the second engaging portion 124, and allows the second engaging portion 124 to rotate along the end face 1121 to release the engagement with the locking member 210, so that the battery The unit 10 is disengaged from the battery holder 20 .
[0038] Please also refer to figure 1 and Figure 2A ,in Figure 2A for figure 1 A partially enlarged exploded schematic diagram of the battery cell. Specifically, the battery 110 has opposite ends 112 and 114 in the longitudinal direction, wherein the end 112 is adjacent to the battery holder 20 , and the other end 114 is away from the battery holder 20 . The end surface 1121 is the surface of the end portion 112 facing the battery holder 20 . In this embodiment, the battery 110 is provided with a battery cover 130 at the end 112 , and the end surface 1121 can be the surface of the battery cover 130 facing the battery holder 20 . In this embodiment, the first engaging portion 122 and the second engaging portion 124 are two separate components. For example, the first engaging portion 122 can be a hook or an engaging surface formed on the battery cover 130 , and the second engaging portion 124 is a component rotatably disposed on the battery cover 130 .
[0039]In this embodiment, the battery unit 10 includes a movable member 120 . The second engaging portion 124 is disposed at one end of the movable member 120 , and the other end of the movable member 120 opposite to the second engaging portion 124 serves as the operating portion 126 . The operating portion 126 drives the movable member 120 to rotate after receiving the external force, thereby driving the second engaging portion 124 away from the locking member 210 to release the engaging. Specifically, the movable member 120 is rotatably disposed on the end portion 112, and the movable member 120 preferably rotates parallel to the end surface 1121, that is, the rotation axis of the movable member 120 is substantially parallel to the normal direction of the end surface 1121, or perpendicular to the end surface. 1121. The second engaging portion 124 may be a hook disposed at the end of the movable member 120 . The rotating shaft of the movable member 120 is preferably disposed between the second engaging portion 124 and the operating portion 126 , and the operating portion 126 is a column or block extending from the rotating shaft away from the second engaging portion 124 . In this embodiment, the second engaging portion 124 may be inclined at a predetermined angle relative to the operating portion 126 , that is, the angle between the second engaging portion 124 and the operating portion 126 is less than 180 degrees (for example, the movable member 120 is an arcuate rod). , so that the second engaging portion 124 is bent toward the first engaging portion 122 , thereby reducing the rotation space required for the second engaging portion 124 to release the engaging (or engaging) of the engaging member 210 , but this is not the case. limit. According to practical applications, the movable member 120 may have any suitable shape. For example, in another embodiment, the movable member 120 may be a linear rod, but not limited thereto. The second engaging portion 124 and the operating portion 126 are preferably disposed at opposite ends relative to the rotation axis of the movable member 120 , so that when the operating portion 126 is driven by an external force to rotate the movable member 120 , the second engaging portion 124 can be rotated accordingly. In other words, the rotation direction of the operation part 126 after receiving the external force is the same as the rotation direction of the second engaging part 124 , and the displacement direction of the external force receiving the operation part 126 is opposite to the displacement direction of the second engaging part 124 .
[0040] A pivot mechanism may be provided between the movable member 120 and the end portion 112 , so that the movable member 120 and the end portion 112 are rotatably connected, so that the movable member can rotate along the end surface 1121 of the end portion 112 . In this embodiment, the battery unit 10 has a positioning column 132 , the positioning column 132 is disposed on the end portion 112 , and the movable member 120 is rotatably sleeved on the positioning column 132 . For example, the positioning post 132 can be a protruding post disposed on the battery cover 130 and having a screw hole 1322 , and the movable member 120 has a through hole 128 corresponding to the positioning post 132 , so that the movable member 120 is sleeved on the positioning post through the through hole 128 . 132 , and is locked to the screw hole 1322 by the bolt 140 passing through the through hole 128 , so that the movable member 120 is rotatably sleeved on the positioning post 132 . Thereby, the positioning post 132 can be regarded as a rotation axis for the movable member 120 to rotate along the end surface 1121 , but it is not limited thereto. In another embodiment (not shown), the battery unit 10 may not have the positioning posts 132 , and the screw holes 1322 are directly formed on the end surface 1121 , and the movable member 120 is rotatably disposed on the end surface 1121 by means of the bolts 140 . Therefore, the bolt 140 can be regarded as a rotation shaft of the movable member 120 rotating along the end surface 1121 .
[0041] The positioning post 132 is preferably located on the side of the first engaging portion 122 relative to the disengagement direction D2, so that when the movable member 120 is sleeved on the positioning post 132, the second engaging portion 124, the first engaging portion 122 and the operating portion 126 The battery cells 10 are arranged in sequence along the disengagement direction D2 from the battery holder 20 , that is, the second engaging portion 124 , the first engaging portion 122 and the operating portion 126 are respectively located upstream, midstream and downstream of the disengaging direction D2 . In other words, when the disengagement direction D2 is downward disengagement, the second engaging portion 124 , the first engaging portion 122 and the operating portion 126 are arranged in sequence from top to bottom. The operating portion 126 drives the movable member 120 to rotate after receiving an external force. For example, when the user pushes the operating portion 126 , the movable member 120 is driven to rotate, thereby driving the second engaging portion 124 to move away from the locking member 210 accordingly. In the disengagement direction D2 , the second engaging portion 124 is at least partially located outside the first engaging portion 122 . In other words, in the unlocking direction D1, the second engaging portion 124 is closer to the battery holder 20 than the first engaging portion 122 is.
[0042] In this embodiment, the battery unit 10 may further include a torsion spring 150, and the torsion spring 150 is disposed between the positioning column 132 and the movable member 120, so that when the operation portion 126 is not subjected to external force, the second engaging portion 124 is kept at the position of the second engaging portion 124. At a position close to the first engaging portion 122 , and when the operating portion 126 receives an external force, the second engaging portion 124 rotates in a direction away from the first engaging portion 122 . In this embodiment, as Figure 2A As shown, the battery cell 10 has a positioning hole 134 , and the positioning hole 134 is provided in the end portion 112 . The torsion spring 150 is sleeved on the positioning post 132 of the end portion 112 of the battery 110 , so that the first end 152 of the torsion spring 150 is positioned in the positioning hole 134 , and the second end 154 of the torsion spring 150 is received by the end portion 112 (eg, the protruding portion). 160, described later) limit. The torsion spring 150 provides a pre-force to keep the second engaging portion 124 at a position close to the first engaging portion 122 , that is, at a position where it can interfere with the locking member 210 .
[0043] In this embodiment, the battery unit 10 further has a limiting portion 136 , and the limiting portion 136 is disposed on the end portion 112 . When the movable member 120 rotates, the limiting portion 136 restricts the rotation of the movable member 120 . Specifically, as Figure 2A As shown, the limiting portion 136 is an angular block having two adjacent side edges 1362 and 1364 , and the limiting portion 136 is adjacent to the positioning post 132 . When the movable member 120 is sleeved on the positioning post 132 , the movable member 120 covers the limiting portion 136 of the angle block. For example, if Figure 2B As shown, the movable member 120 may have a storage space 121 on the side facing the end portion 112 . When the movable member 120 is sleeved on the positioning post 132 , the limiting portion 136 is located in the storage space 121 . When the movable member 120 rotates along the end surface 1121 , the side walls 120a and 120b of the movable member 120 on both sides of the storage space 121 can selectively contact the two adjacent side edges 1362 and 1364 of the limiting portion 136 to limit the movement of the movable member 120 . Rotation range, but not limited to this. In another embodiment (not shown), the limiting portion may be a protrusion disposed outside the two side walls 120a and 120b of the movable member 120 to restrict the movable member 120 from rotating between the two protrusions, thereby limiting the movement of the movable member 120. Rotation range of the member 120.
[0044] In this embodiment, the battery unit 10 preferably further includes a protruding portion 160 , wherein the protruding portion 160 is disposed on the end portion 112 and protrudes toward the battery holder 20 to serve as a space for defining the second engaging portion 124 on the end portion 112 . . For example, two cylinders protrude from opposite sides of the battery cover 130 toward the battery holder 20 to serve as the protruding portions 160 , so that when the second engaging portion 124 is disposed on the end portion 112 , preferably at the vertical end surface 1121 The direction does not exceed the protrusion 160. That is, the protruding portion 160 may serve as a part for the battery cell 10 to be in contact with the battery holder 20 . Furthermore, in this embodiment, the protruding portion 160 can also be used as a limiting structure for restricting the second end 154 of the torsion spring 150 , for example, the second end 154 of the torsion spring 150 abuts against the lower side of the protruding portion 160 to provide The second engaging portion 124 maintains a pre-force at a position close to the first engaging portion 122 . In this embodiment, the battery unit 10 may further include a buffer material 165 , wherein the buffer material 165 is preferably disposed on the protruding portion 160 for contacting with the battery holder 20 . For example, the buffer material 165 may include an elastic material, such as rubber or polymer, to reduce the impact force when the battery cell 10 is in contact with the battery holder 20 , or to improve the tightness between the battery cell 10 and the battery holder 20 . , and the friction force between the battery unit 10 and the battery holder 20 can be increased, so as to slow down the movement speed of the battery unit 10 relative to the battery holder 20 .
[0045] Please also refer to figure 1 and image 3 ,in image 3 for figure 1 An exploded schematic view of the battery holder. In this embodiment, the battery holder 20 may further include a lock 220 , a base 230 and an elastic element 238 . The lock 220 is disposed on the battery holder 20 to couple with the locking member 210 . Specifically, the lock 220 and the locking member 210 are respectively disposed on opposite sides of the base 230 , and the elastic element 238 is disposed between the lock 220 and the locking member 210 . In response to the locking and unlocking of the lock device 220 , the locking member 210 can be restricted or allowed to move along the unlocking direction D1 . For example, when the lock 220 is in the locked state, the locking member 210 and the first engaging portion 122 are restricted from relative movement along the unlocking direction D1 to remain engaged; when the lock 220 is in the unlocked state, the locking member 210 is driven along the unlocking direction D1 move to release the engagement between the locking member 210 and the first engagement portion 122 .
[0046] The locking member 210 has a locking portion 212 , and the locking portion 212 protrudes outward, that is, protrudes in the direction of the battery unit 10 . The locking portion 212 can be in the form of a hook having a shape corresponding to the first engaging portion 122 and the second engaging portion 124 , so as to be engaged with the first engaging portion 122 or the second engaging portion 124 . The locking member 210 also has a coupling hole 214 for coupling with the lock 220 . In this embodiment, the coupling hole 214 has a first hole portion 214a and a second hole portion 214b that communicate with each other, and the diameter of the first hole portion 214a is larger than the diameter of the second hole portion 214b to form a gourd-shaped coupling hole 214.
[0047] The lock 220 includes a lock body 222 and a drive shaft 224 . The driving shaft 224 is connected to the lock body 222 , and is extended or retracted relative to the lock body 222 corresponding to the locking and unlocking of the lock body 222 , that is, extending or retracting parallel to the unlocking direction D1 . For example, the lock body 222 can be a key lock or a combination lock, and is set in a locked state or an unlocked state by a key or a password. When the lock body 222 is in the locked state, the drive shaft 224 is in an extended state relative to the lock body 222 . When the lock body 222 is in the unlocked state, the drive shaft 224 is in a retracted state relative to the lock body 222 . That is, the length of the drive shaft 224 extending relative to the lock body 222 is greater than the length of the drive shaft 224 extending relative to the lock body 222 when the drive shaft 224 is in the retracted state. The drive shaft 224 includes a neck section 226 and a head section 228 along the long axis direction, and the width (or radial diameter) of the neck section 226 perpendicular to the long axis direction (or telescopic direction) is smaller than that of the head section 228 perpendicular to the long axis The width (or radial diameter) in the direction (or telescopic direction). That is, the neck segment 226 is retracted relative to the head segment 228 .
[0048] The base 230 is preferably in the form of a hollow housing to allow the catch 210 to move in the base 230 relative to the base 230 . In this embodiment, the base 230 includes a side plate 232 and a seat body 234 . The base body 234 is a casing having an accommodating space 2342 inside, and the side plate 232 is disposed on the open side of the base body 234 to surround the accommodating space 2342 together with the base body 234 . The side plate 232 can be connected to the base body 234 by means of locking, snapping, adhering, welding, etc., but not limited thereto. The side plate 232 is adjacent to the lock 220 and has a through hole 2322 , and the base body 234 has an opening 2344 , and the through hole 2322 and the opening 2344 communicate with the accommodating space 2342 . The size of the through hole 2322 corresponds to the drive shaft 224 to allow the drive shaft 224 to pass therethrough, and the size of the opening 2344 at least corresponds to the locking portion 212 to allow the locking portion 212 (and the drive shaft 224 ) to protrude.
[0049] The lock 220 is disposed outside the side plate 232 , and the drive shaft 224 passes through the through hole 2322 and the accommodating space 2342 . The elastic element 238 (eg, a coil spring) is disposed between the side plate 232 and the locking member 210 , and is sleeved on the driving shaft 224 . The diameter of the first hole portion 214a corresponds to the head section 228 of the drive shaft 224, and the diameter of the second hole portion 214b corresponds to the neck section 226, so as to allow the drive shaft 224 to pass through the coupling hole 214 from the first hole portion 214a, so that the head The segment 228 is located on a side of the locking member 210 adjacent to the seat body 234 , and the neck segment 226 is located in the first hole portion 214 a of the coupling hole 214 . Therefore, during assembly, the drive shaft 224 can be moved toward the second hole portion 214b, so that the neck section 226 is engaged with the second hole portion 214b, so that the drive shaft 224 can be firmly coupled with the locking member 210 to form a linkage mechanism , and the locking portion 212 is exposed to the opening 2344 .
[0050] refer to Figure 4A and Figure 4B , Figure 4A is a schematic diagram of a battery assembly according to another embodiment of the present invention; Figure 4B for Figure 4A Partial exploded schematic diagram of the battery holder. like Figure 4A and Figure 4B As shown, the battery assembly 10 further includes an elastic member 240 , wherein the elastic member 240 is disposed on the battery holder 20 . When the locking member 210 is released from the engagement with the first engaging portion 122 or the second engaging portion 124 , the elastic member 240 provides a restoring force to urge the battery unit 10 to move in the disengaging direction D2 . Specifically, the elastic member 240 can be implemented in the form of a leaf spring, and can be fixed to the base 230 of the battery holder 20 by means of locking, snapping or the like. For example, the elastic member 240 has a connecting portion 242 , an extending portion 244 and a contact portion 246 . The connecting portion 242 is used for connecting with the battery holder 20 . The extension portion 244 extends from the connection portion 242 toward the disengaging direction D2 (eg, downward), so that the included angle between the extension portion 244 and the connection portion 242 is less than 180 degrees. The extension length of the extension portion 244 and the bending angle relative to the connection portion 242 can be selected according to the distance between the battery 110 and the connecting portion 242 when the battery unit 10 is kept at the first position and the restoring force that the elastic member 240 intends to exert on the battery 110 . Fold angle. The end of the extension portion 244 (ie the end away from the connecting portion 242 ) is preferably bent to form the abutting portion 246 , so as to ensure the contact with the battery unit 10 by the abutting portion 246 , but not limited thereto. In another embodiment, the end of the extension portion 244 may not have a bent portion, but the free end of the extension portion 244 serves as the abutment portion 246 that contacts the battery cell 10 .
[0051] Furthermore, the battery assembly 10 may further include a bracket 30 and a spacer 250 . The battery holder 20 can be disposed on the bracket 30 , and the gasket 250 is disposed between the bracket 30 and the elastic member 240 to adjust the distance between the battery holder 20 and the bracket 30 . Specifically, in this embodiment, the bracket 30 can be a component of the battery assembly 10 , so that the battery assembly 10 can be mounted on the frame of the electric bicycle through the bracket 30 , and the battery holder 20 can be adjusted with the spacer 250 . The distance between the brackets 30 can meet the space requirements of different frame designs without redesigning and changing the size of the base 230 . In another embodiment, the bracket 30 can be a frame of an electric bicycle, and the distance between the battery holder 20 and the frame of the electric bicycle can be adjusted by the spacer 250 . In addition, the connector 40 of the electric bicycle can also be disposed on the opposite end of the bracket 30 corresponding to the battery holder 20 , so that the distance between the connector 40 and the battery holder 20 is substantially equal to the length of the battery unit 10 along the long axis direction. Thereby, when the battery unit 10 is disposed on the battery holder 20, the electrical contact 116 of the battery unit 10 disposed on the end 114 of the battery 110 can be connected with the electrical contact 42 of the connector 40 (see Figure 5A ) is electrically connected, and the tightness is enhanced by the buffer material 165 to stably supply electric power to the driving device of the electric bicycle. like Figure 4B As shown, in this embodiment, the battery holder 20 , the elastic member 240 , the gasket 250 and the bracket 30 are connected to each other by bolts 142 and 144 respectively, but not limited thereto. In other embodiments, the battery holder 20 , the elastic member 240 , the gasket 250 and the bracket 30 can be connected to each other by means of clamping, welding or the like.
[0052] later, please refer to 5A to 7A , Figure 5A and Figure 6A The cross-sectional views of the battery holder 20 for positioning the battery unit 10 at the first position and the second position are respectively, and Figure 7A It is a cross-sectional view of the battery unit 10 being separated from the battery holder 20 . like Figure 5A and Figure 5B As shown in the partial enlarged view of , when the locking member 210 is engaged with the first engaging portion 122 , the battery holder 20 locates the battery unit 10 at the first position. The first position is the position where the battery unit 10 is combined with the battery holder 20 and locked. For example, in the first position, the lock 220 can be locked or unlocked. When the lock 220 is in the locked state, the drive shaft 224 is in an extended state and cannot move relative to the lock body 222, so that the locking member 210 and the first engaging portion 122 cannot move relative to each other in the unlocking direction D1, that is, the engaging state is maintained. Thus, the battery unit 10 is locked to the battery holder 20 , and the battery unit 10 is electrically connected to the connector 40 , that is, the electrical contact 116 is electrically connected to the electrical contact 42 . In this example, as Figure 5B As shown, when the battery holder 20 locates the battery unit 10 at the first position, the first engaging portion 122 engages with the engaging portion 212 along the extending direction of the engaging portion 212 (ie, the unlocking direction D1 ), and the battery 110 faces toward the engaging portion 212 . The bracket 30 presses against the elastic member 240 in the direction, so that the elastic member 240 is elastically deformed. like Figure 5B and 5C As shown, when the battery holder 20 locates the battery unit 10 in the first position, the pre-force (elastic force) of the torsion spring 150 keeps the second engaging portion 124 at a position close to the first engaging portion 122, that is, the first The projection of the second engaging portion 124 in the disengaging direction D2 is at least partially outside the first engaging portion 122 and partially overlaps with the engaging portion 212 of the engaging member 210 .
[0053] like Figure 6A and Figure 6B As shown in the partial enlarged view of , when the lock 220 changes from the locked state to the unlocked state, the drive shaft 224 moves toward the lock body 222 (ie, retracts), so as to drive the locking member 210 to move away from the first engaging portion along the unlocking direction D1 122 to release the engagement state, and the battery unit 10 moves from the first position along the disengagement direction D2 to the second position where the locking member 210 is engaged with the second engagement portion 124 . For example, when the locking member 210 and the first engaging portion 122 are released from the engagement, the battery unit 10 can move downward relative to the battery holder 20 by gravity (and the restoring force of the elastic member 240 ). The second engaging portion 124 is engaged with the locking member 210 and positioned at the second position. Specifically, the second engaging portion 124 extends from the side of the locking portion 212 in the extending direction (ie, the unlocking direction D1 ) toward the locking portion 212 to engage the locking portion 212 , so that the second engaging portion 124 is in the unlocking direction. The thickness on D1 can be adjusted according to actual needs, thereby effectively reducing the space required for engaging between the battery unit 10 and the battery holder 20 . In this example, as Figure 6A and 6B As shown, when the locking member 210 is released from the first locking portion 122, the elastic member 240 pressed and deformed by the battery 110 can provide elastic force (recovery force) to urge the battery unit 10 to move to the locking member along the disengagement direction D2 210 is a second position where the second engaging portion 124 is engaged. When the battery holder 20 locates the battery unit 10 at the second position, the lock 220 is still in the unlocked state, and can allow the second engaging portion 124 to rotate along the end surface 1121 . Specifically, as Figure 6B and Figure 6C As shown, when the battery holder 20 locates the battery unit 10 at the second position, the user can apply an external force F to the operating portion 126, so that the operating portion 126 is driven by the external force F to drive the movable member 120 to rotate, thereby driving the second engaging portion 124 is rotated away from the locking member 210 to release the engagement with the locking portion 212 . That is, when the user applies an external force F to the operating portion 126, the rotation axis of the movable member 120 is substantially parallel to the unlocking direction D1, and can be rotated parallel to the end surface 1121 along the rotation direction R1 (eg, clockwise) to the position shown by the dotted line, That is, a position away from the first engaging portion 122 . In this embodiment, the unlocking direction D1 is substantially perpendicular to the detaching direction D2, that is, the unlocking direction D1 and the detaching direction D2 are two substantially orthogonal directions, but not limited thereto. In other embodiments, the angle between the unlocking direction D1 and the disengaging direction D2 may be greater than or less than 90 degrees. also, Figure 2A The shown limiting portion 136 can be disposed in the overlapping area of ​​the movable member 120 and the movable member 120 shown in dotted lines to limit the rotation range of the movable member 120, so as to avoid excessive rotation of the movable member 120 caused by excessive external force F.
[0054] like Figure 7A and Figure 7B As shown, the operating portion 126 drives the movable member 120 to rotate after receiving the external force, thereby driving the second engaging portion 124 away from the engaging member 210 to release the engaging, the battery unit 10 can use gravity (and the restoring force of the elastic member 240 ) It moves relative to the battery holder 20 along the disengagement direction D2 again to disengage the battery holder 20 and the connector 40 . Furthermore, if Figure 7C As shown, when the battery unit 10 is disengaged from the battery holder 20 and the external force F is released, the torsion spring 150 can provide a restoring force to drive the movable member 120 to rotate parallel to the end surface 1121 in the reverse rotation direction R2 (eg, counterclockwise) to the point indicated by the dotted line. the position shown, that is Figure 5C A position close to the first engaging portion 122 is shown.
[0055] Furthermore, the lock 220 is set in the unlocked state, according to 5A to 7A The sequence shown is reversed to install the battery cell 10 in the battery holder 20 . Specifically, an external force F can be applied to the operating portion 126 to make the second engaging portion 124 move away from the locking portion 212 (ie, away from the first engaging portion 122 ), and move toward the installation direction (ie, the reverse of the disengaging direction D2 ) The battery unit 10 is pressed so that the battery unit 10 is mounted on the battery holder 20 and is electrically connected to the connector 40 .
[0056] To sum up, the battery assembly of the present invention can be applied to any device that requires a two-stage disassembly operation, so as to provide a safe and convenient way to disassemble the battery assembly.
[0057] The present invention has been described by the above-mentioned embodiments, however, the above-mentioned embodiments are for illustrative purposes only and not for limitation. Those skilled in the art will appreciate that the embodiments specifically described herein may incorporate other modifications of the illustrated embodiments without departing from the spirit of the invention. Accordingly, the scope of the present invention also encompasses such modifications and is limited only by the scope of the appended claims.
[0058] Of course, the present invention can also have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformation should belong to the protection scope of the appended claims of the present invention.

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