Two-lock device of battery

Abstract

The invention relates to the technical field of electric vehicles, and discloses a two-lock device of a battery, which comprises a battery lock arranged in a frame and a battery unit provided with a battery end cover, and the battery lock comprises a first holding part and a second holding part; a first held part and a second held part are arranged on the battery end cover, and the second held part is located at the upstream position of the first held part in the direction of detaching the battery unit from the frame; the first holding part can abut against the first held part so as to hold the battery unit at the first holding position; or the first holding part is separated from the first held part so as to unlock the first lock between the battery lock and the battery end cover; after the first lock is unlocked, the second holding part can abut against the second held part so as to hold the battery unit at the second holding position; or the second held part is separated from the second holding part so as to unlock the second lock between the battery lock and the battery end cover. The disassembly of the battery unit is safer, and the battery unit is prevented from being clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a two-way locking device for a battery. Background Art

[0002] Electric-assisted bicycles typically use lithium batteries as their power source. Large-capacity batteries are quite heavy, so many manufacturers design them between the wheels to achieve a balanced center of gravity. Another key consideration is whether the battery should be internally mounted. Internally mounted batteries create a more streamlined frame, appealing to riders' aesthetic preferences. Tube-mounted batteries maintain optimal weight distribution while also minimizing impact on the frame's aerodynamics.

[0003] In order to maintain the overall beauty of the frame, the tube-hidden battery is generally embedded in the tube from the bottom of the tube and fixedly connected to the tube by mechanical locking. In the prior art, the battery unit and the frame are locked and unlocked by a battery lock, but the battery lock in the prior art is a single lock, which is prone to safety problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a two-way lock device for a battery, which solves the technical problem in the prior art that the battery lock is a single lock and is prone to safety problems.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides a battery double lock device, comprising a battery lock arranged in a vehicle frame and a battery unit provided with a battery end cover, wherein the battery double lock device is used to lock the battery unit in the vehicle frame or unlock the battery unit from the vehicle frame;

[0007] The battery lock includes a first holding portion and a second holding portion;

[0008] The battery end cover is provided with a first held portion and a second held portion, wherein the second held portion is located upstream of the first held portion in the direction of removing the battery unit from the vehicle frame;

[0009] The first retaining portion can abut against the first retained portion to retain the battery unit in a first retaining position; or the first retaining portion is separated from the first retained portion to unlock the first lock between the battery lock and the battery end cover; after unlocking the first lock, the second retaining portion can abut against the second retained portion to retain the battery unit in a second retaining position; or the second retained portion is separated from the second retaining portion to unlock the second lock between the battery lock and the battery end cover.

[0010] The battery lock of the two-way lock device of the battery is provided with a first holding portion and a second holding portion, and the battery end cover is provided with a first held portion and a second held portion. The first holding portion can abut against the first held portion to hold the battery unit in the first holding position; or the first holding portion is separated from the first held portion to unlock the first lock between the battery lock and the battery end cover; after unlocking the first lock, the second holding portion can abut against the second held portion to hold the battery unit in the second holding position; or the second held portion is separated from the second holding portion to unlock the second lock between the battery lock and the battery end cover, so that the battery unit can be completely unlocked after two unlocking steps, and the removal of the battery unit is safer;

[0011] The second retained portion of the battery's two-way locking device is located upstream of the first retained portion in the direction of removing the battery unit from the frame. There is no need to set the second retained portion as a structure that is more protruding than the first retained portion, thereby avoiding the problem that the more protruding second retained portion may be stuck in the second retaining portion due to too small a stroke and the battery cannot be removed.

[0012] As a preferred solution of the above-mentioned two-way lock device for the battery, the battery end cover is provided with a mounting groove on the end surface facing the battery lock, the second retained portion is movable along the depth direction of the mounting groove and is disposed in the mounting groove, and a first elastic member is provided between the second retained portion and the mounting groove;

[0013] The battery end cover is provided with a two-way lock and unlocking assembly, which is configured to drive the second retained portion to move in a direction of retracting into the mounting slot and compress the first elastic member to disengage from the second retaining portion.

[0014] The second retaining portion is movably disposed in the mounting slot along the depth direction of the mounting slot, and the second lock unlocking assembly on the battery end cover can drive the second retained portion to move in a direction of retracting into the mounting slot, so that the second retained portion is disengaged from the second retaining portion, thereby unlocking the second lock;

[0015] The first elastic member between the second held portion and the mounting groove can drive the second held portion to automatically reset without manual reset.

[0016] As a preferred solution of the above-mentioned battery-powered two-way lock device, the two-way lock unlocking component includes:

[0017] an unlocking assembly, the unlocking assembly being arranged on the battery end cover and movable along a first direction, the unlocking assembly being movable along the first direction between a locked position and an unlocked position to retain the battery unit in a second retaining position or to unlock the second lock, the first direction being arranged parallel to the battery end cover;

[0018] The unlocking assembly is provided with a first inclined surface abutting against the second retained portion. The unlocking assembly moves from the locking position toward the unlocking position to drive the second retained portion to retract into the installation slot.

[0019] The unlocking assembly is supported against the second retained portion by the first inclined surface, thereby converting the movement of the unlocking assembly in a direction parallel to the battery end cover into the movement of the second retained portion in the depth direction of the mounting groove. The unlocking assembly has a simple structure and is easy to prepare.

[0020] As a preferred solution of the above-mentioned battery-powered two-way lock device, the two-way lock unlocking component further includes:

[0021] A second elastic member is used to drive the unlocking assembly to reset.

[0022] The second elastic member is configured to drive the unlocking assembly to reset, thereby achieving automatic reset of the unlocking assembly.

[0023] As a preferred solution of the above-mentioned battery two-way lock device, the unlocking component includes:

[0024] Two groups of driving arms, the two groups of driving arms are spaced apart, the bottom of each group of driving arms is provided with the first inclined surface, and the first inclined surface of each group of driving arms abuts against a group of the second retained portions;

[0025] An unlocking button is connected to the two groups of driving arms, and extends out of the battery end cover when the unlocking button is in the locked position.

[0026] The unlocking assembly cooperates with the two groups of second retained parts through two groups of driving arms, so that the battery lock is locked more securely; and when unlocking is performed through the unlocking button, the two groups of second retained parts can be unlocked at the same time.

[0027] As a preferred solution of the above-mentioned battery-powered two-way lock device, a guide channel is provided on the driving arm, and the guide channel extends along the first direction;

[0028] The battery end cover is provided with a guide member, which is inserted into the guide channel. The driving arm moves along the first direction to move the guide member relative to the guide channel.

[0029] The provision of the guide channel and the guide member can guide the movement of the unlocking component and prevent the movement of the unlocking component from being deflected.

[0030] As a preferred solution of the two-way locking device of the above-mentioned battery, a limiting protrusion is provided on one of the first inclined surface and the second retained portion, and a limiting groove is provided on the other. When the unlocking assembly is in the locked position, the limiting protrusion can extend into the limiting groove.

[0031] The limiting protrusion can extend into the limiting groove when the unlocking assembly is in the locked position, thereby preventing the unlocking assembly from falling out of the battery end cover.

[0032] As a preferred solution of the above-mentioned two-way locking device of the battery, the first retaining portion is located further upstream of the second retaining portion in the direction of removing the battery unit from the vehicle frame.

[0033] The above arrangement allows the battery unit to move a longer distance from the first holding position to the second holding position, making it easier to remove the battery unit from the vehicle frame after unlocking the second lock.

[0034] As a preferred solution of the above-mentioned two-way lock device for the battery, the first retaining portion is a lock tongue of the battery lock;

[0035] The second retaining portion is a step structure provided on the battery lock seat of the battery lock.

[0036] The first retaining portion is a lock tongue of the battery lock, which locks the first retained portion and facilitates unlocking the first retained portion by driving the lock tongue;

[0037] The second retaining portion is a step structure, which is simple and easy to prepare.

[0038] As a preferred solution for the above-mentioned two-way lock device of the battery, a lock seat spring is provided on the battery lock. When the battery unit is locked in the frame, the lock seat spring is abutted against the battery unit. The lock seat spring is configured to drive the battery unit to move in the direction of leaving the frame when the first lock is unlocked.

[0039] The arrangement of the lock seat shrapnel can drive the battery unit to move in a direction away from the vehicle frame when the first lock is unlocked, so as to automatically enter the locking position of the second lock.

[0040] Beneficial effects of the present invention:

[0041] The present invention proposes a two-stage lock device for a battery. The battery lock of the two-stage lock device is provided with a first retaining portion and a second retaining portion, and the battery end cover is provided with a first retained portion and a second retained portion. The first retaining portion can abut against the first retained portion to retain the battery unit in the first retaining position; or the first retaining portion is separated from the first retained portion to unlock the first stage lock between the battery lock and the battery end cover; after unlocking the first stage lock, the second retaining portion can abut against the second retained portion to retain the battery unit in the second retaining position; or the second retained portion is separated from the second retaining portion to unlock the second stage lock between the battery lock and the battery end cover, so that the battery unit can be completely unlocked after two stages of unlocking, and the removal of the battery unit is safer;

[0042] The second retained portion of the battery's two-way locking device is located upstream of the first retained portion in the direction of removing the battery unit from the frame. There is no need to set the second retained portion to a structure that is more protruding than the first retained portion, thereby avoiding the problem that the second retained portion is stuck by the second retaining portion and the battery unit cannot be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a first structural schematic diagram of the double-lock device of the battery provided by the present invention in the first holding position;

[0044] Figure 2 This is an exploded view of the two-way lock device of the battery provided by the present invention;

[0045] Figure 3 It is a structural schematic diagram of the battery unit and battery lock provided by the present invention;

[0046] Figure 4 It is a structural diagram of the battery lock provided by the present invention;

[0047] Figure 5 It is a structural schematic diagram of the battery unit provided by the present invention;

[0048] Figure 6 This is a second structural schematic diagram of the double-lock device of the battery provided by the present invention in the first holding position;

[0049] Figure 7 yes Figure 6 Sectional view along line AA;

[0050] Figure 8 yes Figure 7 Enlarged view of point D in the middle;

[0051] Figure 9 yes Figure 6 Cross-sectional view along line BB;

[0052] Figure 10 yes Figure 9 Enlarged view of point E in the middle;

[0053] Figure 11 This is a first structural schematic diagram of the double-lock device of the battery provided by the present invention in the second holding position;

[0054] Figure 12 This is a second structural schematic diagram of the two-way lock device of the battery provided by the present invention in the second holding position;

[0055] Figure 13 yes Figure 12 Cross-sectional view along CC line;

[0056] Figure 14 yes Figure 13 Enlarged view of point F in the middle;

[0057] Figure 15 This is a schematic diagram of the structure of the battery-powered dual-lock device provided by the present invention after unlocking the second lock;

[0058] Figure 16 It is a structural diagram of the unlocking component provided by the present invention;

[0059] Figure 17 It is a structural schematic diagram of the second retained portion provided by the present invention.

[0060] In the picture:

[0061] 1. Frame; 10. Installation window;

[0062] 2. Battery cell; 21. Battery body; 22. Battery end cap; 23. Second end cap;

[0063] 2201, mounting groove; 2202, groove; 2203, first guide groove; 2204, second guide groove;

[0064] 221, first held portion;

[0065] 222, second held portion; 2221, abutting portion; 2222, baffle; 2220, limiting protrusion;

[0066] 223, first elastic member;

[0067] 224, guide member;

[0068] 3. Battery lock; 30. Battery lock seat; 301. Limiting groove; 31. First retaining portion; 32. Second retaining portion; 33. Lock seat spring;

[0069] 4. Secondary lock unlocking assembly; 41. Unlocking assembly; 411. Driving arm; 4111. First inclined surface; 4112. Position limiting groove; 4113. Guide channel; 412. Unlocking button; 4121. Unlocking connector; 4122. Button portion; 42. Second elastic member;

[0070] 5. Battery holder. DETAILED DESCRIPTION

[0071] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0072] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0073] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0074] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0075] Electric-assisted bicycles typically use lithium batteries as their power source. Large-capacity batteries are quite heavy, so many manufacturers design them between the wheels to achieve a balanced center of gravity. Another key consideration is whether the battery should be internally mounted. Internally mounted batteries create a more streamlined frame, appealing to riders' aesthetic preferences. Tube-mounted batteries maintain optimal weight distribution while also minimizing impact on the frame's aerodynamics.

[0076] To maintain the overall aesthetics of the frame, tube-mounted batteries are typically embedded into the tube from below and secured to the tube via a mechanical lock. Conventional technology uses a battery lock to lock and unlock the battery unit and the frame. However, these conventional battery locks are single-use, potentially leading to safety issues.

[0077] In order to solve the above problems, Figures 1-15 As shown, this embodiment provides a battery two-way locking device, including a battery lock 3 provided in a frame 1 and a battery unit 2 provided with a battery end cover 22. The battery two-way locking device is used to lock the battery unit 2 in the frame 1 or unlock the battery unit 2 from the frame 1; Figure 4 As shown, the battery lock 3 includes a first holding portion 31 and a second holding portion 32; Figure 5 As shown, the battery end cover 22 is provided with a first held portion 221 and a second held portion 222. The second held portion 222 is located upstream of the first held portion 221 in the direction of removing the battery unit 2 from the vehicle frame 1. The first holding portion 31 can abut against the first held portion 221 to hold the battery unit 2 in the first holding position (see Figure 1 and 7 ); or the first holding portion 31 is separated from the first held portion 221 to unlock the first lock between the battery lock 3 and the battery end cover 22; after unlocking the first lock, the second holding portion 32 can abut against the second held portion 222 to hold the battery unit 2 in the second holding position (see Figure 11 or the second retained portion 222 is disengaged from the second retaining portion 32 to unlock the second lock between the battery lock 3 and the battery end cover 22, ie, the battery unit 2 is unlocked after two locks.

[0078] The battery unit 2 of the battery's two-way locking device can be completely unlocked only after two unlocking steps, making the removal of the battery unit 2 safer; the second retained portion 222 of the battery's two-way locking device is located upstream of the first retained portion 221 in the direction of removing the battery unit 2 from the frame 1, and there is no need to set the second retained portion 222 to a structure that is more protruding than the first retained portion 221, thereby avoiding the problem that the second retained portion 222 is stuck by the second retaining portion 32 and the battery unit 2 cannot be removed.

[0079] Alternatively, as Figure 2 As shown, the vehicle frame 1 is a tubular structure, and a mounting window 10 is provided on the side wall of the vehicle frame 1 . The battery unit 2 is installed in the vehicle frame 1 through the mounting window 10 or the battery unit 2 is taken out through the mounting window 10 .

[0080] Optionally, a battery holder 5 is provided in the frame 1, and the battery holder 5 is spaced apart from the battery lock 3 and is respectively provided at both ends of the installation window 10. One end of the battery unit 2 is arranged opposite to the battery holder 5 and can be installed on the battery holder 5. The other end of the battery unit 2 is arranged opposite to the battery lock 3 and can be locked in or unlocked in the frame 1 through the battery lock 3.

[0081] Specifically, the battery unit 2 is formed into a substantially rectangular parallelepiped having a longitudinal direction. The battery unit 2 is configured to be retained in a first holding position by the battery lock 3 and the battery holder 5, thereby enabling power to be supplied to components electrically connected to the battery holder 5 via the battery holder 5. The components electrically connected to the battery holder 5 include an electric assembly, which includes at least one of an auxiliary drive unit, an electric transmission, an electric suspension, an electric seatpost, a display device, a computer, and an electric operating device.

[0082] Furthermore, the battery unit 2 includes a battery main body 21, and a battery end cover 22 is provided at the end of the battery main body 21 opposite to the battery lock 3, and the battery end cover 22 and the battery lock 3 can be locked or unlocked; a second end cover 23 is provided at the end of the battery main body 21 not opposite to the battery lock 3, and the second end cover 23 can be installed on the battery holder 5 or removed from the battery holder 5.

[0083] like Figure 5 As shown, the first retained portion 221 and the second retained portion 222 are both arranged on the battery end cover 22, and a groove 2202 is provided on the battery end cover 22. The side wall of the groove 2202 is provided with the first retained portion 221, and the first retaining portion 31 can extend into the groove 2202 and abut against the first retained portion 221 to retain the battery unit 2 in the first retaining position.

[0084] Optionally, the end surface of the battery end cover 22 facing the battery lock 3 is concavely provided with a mounting groove 2201, and the second retained portion 222 is moved along the depth direction of the mounting groove 2201 and is disposed in the mounting groove 2201 (see Figure 10 ), a first elastic member 223 is provided between the second retained portion 222 and the mounting slot 2201; a second lock unlocking assembly 4 is provided on the battery end cover 22, and the second lock unlocking assembly 4 is used to drive the second retained portion 222 to move in the direction of retracting the mounting slot 2201, and compress the first elastic member 223 to disengage from the second retaining portion 32, thereby unlocking the second lock; the first elastic member 223 between the second retained portion 222 and the mounting slot 2201 can drive the second retained portion 222 to automatically reset without manual reset.

[0085] Specifically, if Figure 5 As shown, the second lock unlocking assembly 4 includes an unlocking assembly 41, which is arranged on the battery end cover 22 and moves along the first direction. The unlocking assembly 41 moves between the locked position and the unlocked position along the first direction to keep the battery unit 2 in the second holding position or unlock the second lock. When the unlocking assembly is in the locked position, the battery unit 2 is kept in the second holding position. When the unlocking assembly 41 is in the unlocked position, the second lock can be unlocked. The first direction is parallel to the battery end cover 22; the unlocking assembly 41 is provided with a first inclined surface 4111 (see Figure 16 ), the unlocking assembly 41 moves from the locked position to the unlocked position, driving the second retained portion 222 to retract into the mounting groove 2201. The unlocking assembly 41 abuts against the second retained portion 222 via the first inclined surface 4111, thereby converting the movement of the unlocking assembly 41 in a direction parallel to the battery end cover 22 into movement of the second retained portion 222 in the depth direction of the mounting groove 2201. The unlocking assembly 41 has a simple structure and is easy to manufacture.

[0086] Alternatively, as Figure 5 As shown, the second-way lock unlocking assembly 4 further includes a second elastic member 42 , and the second elastic member 42 is used to drive the unlocking assembly 41 to reset, so as to realize automatic reset of the unlocking assembly 41 .

[0087] In some embodiments, the second elastic member 42 is a spring that extends along the moving direction of the unlocking assembly 41 , with one end of the spring abutting against the unlocking assembly 41 and the other end abutting against the protrusion of the battery end cover 22 .

[0088] like Figure 5 and Figure 16 As shown, the unlocking assembly 41 includes a driving arm 411 and an unlocking button 412. The driving arms 411 are provided in two groups, and the two groups of driving arms 411 are arranged at intervals. The first held portion 221 is provided between the two groups of driving arms 411. The bottom of each group of driving arms 411 is provided with a first inclined surface 4111. The first inclined surface 4111 of each group of driving arms 411 abuts against a group of second held portions 222 (see Figure 5 The unlocking button 412 is connected to two sets of driving arms 411. When the unlocking button 412 is in the locked position, it extends out of the battery end cover 22. The unlocking assembly 41, through the two sets of driving arms 411, respectively cooperates with the two sets of second retained portions 222, thereby making the battery lock 3 more securely locked. Furthermore, when the unlocking button 412 is used to unlock, both sets of second retained portions 222 are simultaneously unlocked.

[0089] In this embodiment, the unlock button 412 includes an unlock connector 4121 and a button portion 4122. The unlock connector 4121 is connected between the two sets of driving arms 411, forming a "ㄩ"-shaped structure. The button portion 4122 is connected to the side of the unlock connector 4121 where the driving arms 411 are not provided, and is located in the middle of the unlock connector 4121. The battery end cover 22 is provided with a first guide groove 2203 and a second guide groove 2204, and the second guide groove 2204 is connected to the groove 2202. The driving arms 411 move along the first guide groove 2203, and the button portion 4122 moves along the second guide groove 2204.

[0090] Two groups of second elastic members 42 are symmetrically arranged between the two groups of driving arms 411, so that the unlocking button 412 can move stably along the first guide groove 2203 and the second guide groove 2204 to avoid being stuck.

[0091] Furthermore, the driving arm 411 is provided with a guide channel 4113 extending in a first direction. The battery end cover 22 is provided with a guide member 224 extending through the guide channel 4113. The driving arm 411 moves in the first direction, causing the guide member 224 to move relative to the guide channel 4113. The provision of the guide channel 4113 and the guide member 224 guides the movement of the unlocking assembly 41, preventing the unlocking assembly 41 from moving skewed.

[0092] In this embodiment, the guide member 224 is a screw, the stud of which is connected to the battery end cover 22, and the nut of which extends out of the guide channel 4113, thereby preventing the driving arm 411 from separating from the battery end cover 22. Furthermore, a stopper is provided on the second guide groove 2204 to stop the button portion 4122, preventing the unlocking button 412 from separating from the battery end cover 22. In other embodiments, other methods can be used to prevent the driving arm 411 from separating from the battery end cover 22, which are not limited here.

[0093] like Figure 17 As shown, the second retained portion 222 includes a supporting portion 2221 and stop plates 2222 located at both ends of the supporting portion 2221 . The stop plates 2222 are arranged higher than the supporting portion 2221 . The driving arm 411 is located between the two stop plates 2222 and resists the supporting portion 2221 .

[0094] Optionally, a limiting protrusion 2220 is provided on one of the first inclined surface 4111 and the second retained portion 222, and a limiting groove 4112 is provided on the other. When the unlocking assembly 41 is in the locked position, the limiting protrusion 2220 can extend into the limiting groove 4112. When the unlocking assembly 41 is in the locked position, the limiting protrusion 2220 can extend into the limiting groove 4112 to prevent the unlocking assembly 41 from falling out of the battery terminal cover 22.

[0095] like Figure 16 As shown, a limiting groove 4112 is provided on the first inclined surface 4111. Figure 17 As shown, a limiting protrusion 2220 is provided on the supporting portion 2221 of the second retained portion 222. When the unlocking button 412 is pressed to unlock, the limiting protrusion 2220 disengages from the limiting groove 4112 so that the first inclined surface 4111 presses the second retained portion 222 to move toward the bottom of the mounting groove 2201, thereby enhancing the hand feel. When the unlocking button 412 is reset, the limiting protrusion 2220 can be re-extended into the limiting groove 4112 to avoid excessive reset of the unlocking button 412.

[0096] Optionally, the first retaining portion 31 is located further upstream of the second retaining portion 32 in the direction of removing the battery unit 2 from the vehicle frame 1. This arrangement allows the battery unit 2 to move further from the first retaining position to the second retaining position, facilitating removal of the battery unit 2 from the vehicle frame 1 after unlocking the second lock.

[0097] Specifically, the battery lock 3 includes a battery lock base 30, on which a lock core is mounted. The lock core is in transmission connection with a lock tongue hinged at one end to the battery lock base 30. The lock tongue is a first retaining portion 31. By turning the lock core with a key, the lock tongue is driven into the groove 2202 and abuts against the first retained portion 221, thereby retaining the battery unit 2 in the first retaining position. By turning the lock core with a key, the lock tongue is driven out of the groove 2202 and disengaged from the abutment with the first retained portion 221, thereby unlocking the first lock. Specifically, the locking and unlocking structure of the lock core of the battery lock 3 belongs to the prior art and will not be described in detail here.

[0098] Optionally, the battery lock seat 30 is provided with a concave retaining groove 301, and a second retaining portion 32 is provided at the downstream end of the retaining groove 301 in the direction of battery removal. The second retained portion 222 can extend into the retaining groove 301 and can move within the retaining groove 301 to abut against the second retaining portion 32. In this embodiment, the second retaining portion 32 is a stepped structure provided on the wall of the retaining groove 301, which prevents further movement of the battery unit 2. The second retaining portion 32 has a simple structure and is easy to manufacture.

[0099] Optionally, a lock seat shrapnel 33 is provided on the battery lock seat 30, and the lock seat shrapnel 33 is provided on the side of the battery lock seat 30 facing the inside of the frame 1. When the battery unit 2 is locked in the frame 1, the lock seat shrapnel 33 is abutted against the battery unit 2. The lock seat shrapnel 33 is configured to drive the battery unit 2 to move in the direction of leaving the frame 1 when the first lock is unlocked, so that the battery unit 2 automatically enters the locking position of the second lock.

[0100] Unlocking process of battery unit 2:

[0101] like Figure 1 As shown, the battery unit 2 is locked in the vehicle frame 1 , and the battery unit 2 is maintained in the first holding position;

[0102] When unlocking the battery unit 2, the key is used to rotate the lock cylinder, driving the first retaining portion 31 to separate from the first retained portion 221, unlocking the first lock. The battery unit 2 is ejected outward by the lock seat spring 33. At this time, the second retaining portion 32 is abutted against the second retained portion 222, and the battery unit 2 is retained in the second retaining position.

[0103] Afterwards, the unlock button 412 is pressed to drive the driving arm 411 to press the second retained portion 222 to retract into the mounting slot 2201 , so that the second retained portion 222 escapes from the second retaining portion 32 , thereby unlocking the second lock and allowing the battery unit 2 to be removed.

[0104] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The battery's two-way locking device is characterized by: The invention comprises a battery lock (3) arranged in a vehicle frame (1) and a battery unit (2) provided with a battery end cover (22), wherein the battery double lock device is used to lock the battery unit (2) in the vehicle frame (1) or unlock the battery unit (2) from the vehicle frame (1); The battery lock (3) comprises a first holding portion (31) and a second holding portion (32); A first retained portion (221) and a second retained portion (222) are provided on the battery end cover (22), wherein the second retained portion (222) is located upstream of the first retained portion (221) in the direction of removing the battery unit (2) from the vehicle frame (1); The first retaining portion (31) can abut against the first retained portion (221) to retain the battery unit (2) in a first retaining position; or the first retaining portion (31) can be disengaged from the first retained portion (221) to unlock the first lock between the battery lock (3) and the battery end cover (22); After unlocking the first lock, the second retaining portion (32) can abut against the second retained portion (222) to retain the battery unit (2) in the second retaining position; or the second retained portion (222) is disengaged from the second retaining portion (32) to unlock the second lock between the battery lock (3) and the battery end cover (22).

2. The battery double lock device according to claim 1, characterized in that: The battery end cover (22) is provided with a recessed mounting groove (2201) on the end surface facing the battery lock (3); the second retained portion (222) is arranged in the mounting groove (2201) by moving along the depth direction of the mounting groove (2201); and a first elastic member (223) is provided between the second retained portion (222) and the mounting groove (2201); A second lock and unlocking assembly (4) is provided on the battery end cover (22), and the second lock and unlocking assembly (4) is configured to drive the second retained portion (222) to move in a direction of retracting into the mounting groove (2201), and compress the first elastic member (223) to disengage from the second retaining portion (32).

3. The battery double lock device according to claim 2, characterized in that: The two-way lock unlocking component (4) comprises: an unlocking assembly (41), the unlocking assembly (41) being arranged on the battery end cover (22) and being movable along a first direction, the unlocking assembly (41) being movable along the first direction between a locked position and an unlocked position to keep the battery unit (2) in a second holding position or unlock the second lock, the first direction being arranged parallel to the battery end cover (22); The unlocking component (41) is provided with a first inclined surface (4111) that abuts against the second retained portion (222), and the unlocking component (41) moves from the locked position toward the unlocked position to drive the second retained portion (222) to retract into the installation slot (2201).

4. The battery double lock device according to claim 3, characterized in that: The second lock unlocking component (4) further comprises: A second elastic member (42), wherein the second elastic member (42) is used to drive the unlocking component (41) to reset.

5. The battery double lock device according to claim 3, characterized in that: The unlocking component (41) comprises: Two groups of driving arms (411), the two groups of driving arms (411) are arranged at intervals, the bottom of each group of driving arms (411) is provided with the first inclined surface (4111), and the first inclined surface (4111) of each group of driving arms (411) abuts against a group of the second retained portions (222); An unlocking button (412), the unlocking button (412) is connected to the two sets of driving arms (411), and the unlocking button (412) extends out of the battery end cover (22) when in the locked position.

6. The battery double lock device according to claim 5, characterized in that: The driving arm (411) is provided with a guide channel (4113), and the guide channel (4113) extends along the first direction; A guide member (224) is provided on the battery end cover (22), and the guide member (224) is inserted into the guide channel (4113). The driving arm (411) moves along the first direction to move the guide member (224) relative to the guide channel (4113).

7. The battery double lock device according to claim 3, characterized in that: A limiting protrusion (2220) is provided on one of the first inclined surface (4111) and the second retained portion (222), and a limiting groove (4112) is provided on the other; when the unlocking assembly (41) is in the locked position, the limiting protrusion (2220) can extend into the limiting groove (4112).

8. The battery-powered double-lock device according to any one of claims 1 to 7, characterized in that: The first retaining portion (31) is located upstream of the second retaining portion (32) in the direction of removing the battery unit (2) from the vehicle frame (1).

9. The battery double lock device according to claim 8, characterized in that: The first retaining portion (31) is a lock tongue of the battery lock (3); The second retaining portion (32) is a step structure provided on the battery lock seat (30) of the battery lock (3).

10. The battery-powered double-lock device according to any one of claims 1 to 7, characterized in that: The battery lock (3) is provided with a lock seat spring piece (33); when the battery unit (2) is locked in the vehicle frame (1), the lock seat spring piece (33) abuts against the battery unit (2); and the lock seat spring piece (33) is configured to drive the battery unit (2) to move in a direction away from the vehicle frame (1) when the first lock is unlocked.

Images