Lock mechanism, lock system, quick exchange bracket assembly and electronic vehicle

Patent metadata

Field	Value
Publication number	US-12173531-B2
Application number	US-202217744723-A
Country	US
Kind code	B2
Filing date	May 15, 2022
Priority date	Dec 29, 2017
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

Provided is a lock mechanism, wherein the lock mechanism includes a lock base, the lock base is provided with an opening and a cavity extending from the opening, the opening is used for the lock shaft mounted to the battery pack to enter the cavity, the lock mechanism further includes: a lock assembly, the lock assembly is connected to one side of the lock base opposite the lock shaft, the lock assembly is moveable relative to the lock base, and the side of the lock base opposite the lock shaft extends into the cavity or exits the cavity; wherein, the lock assembly is capable of preventing the lock shaft from exiting the cavity from the opening when the lock assembly extends into the cavity; the lock assembly is capable of allowing the lock shaft to exit the cavity from the opening when the lock assembly exits the cavity.

First claim

The invention claimed is:

1. A lock system used for the battery pack, the lock system comprises a primary lock mechanism, the primary lock mechanism is provided with a locking linkage part and a lock base, the lock base is provided with an opening and a cavity extending from the opening, the opening is used for a lock shaft mounted on the battery pack to enter the cavity, the locking linkage part moves relative to the lock base to open or close the opening to unlock or lock the battery pack, wherein the lock system further comprises:
a secondary lock mechanism, the secondary lock mechanism is provided on a moving path of the locking linkage part, and is used to restrict the movement of the locking linkage part relative to the lock base to lock the battery pack;
the locking linkage part comprises a lock bolt and a lock connecting rod, the lock bolt is connected to the lock connecting rod and able to rotate relative to the locking base, the lock connecting rod is used to drive the lock bolt to rotate to unlock or lock the battery pack under the action of external force;
the secondary lock mechanism is able to move between a first position and a second position relative to the lock connecting rod;
wherein, when the secondary lock mechanism is in the first position, the secondary lock mechanism acts on the lock connecting rod to limit the movement of the lock connecting rod relative to the lock base;
when the secondary lock mechanism is in the second position, the secondary lock mechanism is disengaged from the lock connecting rod to allow movement of the lock connecting rod relative to the lock base.

2. The lock system according to claim 1 , wherein the secondary lock mechanism is provided on one side of the lock base opposite to the lock shaft of the battery pack;
the secondary lock mechanism comprises:
a first lower housing, the first lower housing is detachably connected to one side of the lock base opposite to the lock shaft, inside of the first lower housing is provided with a first accommodating cavity, and a side wall of the lower housing is provided with a penetration hole in communication with the first accommodating cavity;
a lock pin, the lock pin is located in the first accommodating cavity, and the lock pin is inserted through the penetration hole and is switchable between an extended state and a retracted state;
wherein, when the lock pin is in the extended state, the lock pin is located in the first position;
when the lock pin is in the retracted state, the lock pin is located in the second position;
preferably, the secondary lock assembly further comprises:
a power pin, the power pin acts on the lock pin, and the power pin can move relative to the lock pin to engage with or detach from the lock pin;
a first electromagnetic induction element, the first electromagnetic induction element is provided on the power pin, the first electromagnetic induction element is used for driving the power pin to apply an acting force to the lock pin in the retracting direction of the lock pin under the action of an external electromagnetic device;
a first elastic element, the first elastic element is connected to an end of the lock pin away from the cavity, the first elastic element abuts between the lock pin and the inner surface of the first accommodating cavity, the first elastic element is used to apply an acting force to the lock pin in an extending direction of the lock pin;
wherein, when the first electromagnetic induction element is attracted to the external electromagnetic device, the power pin is detached from the lock pin, and applies an acting force to the lock pin in a retracting direction, so that the lock pin is in the retracted state;
when the first electromagnetic induction element is detached from the external electromagnetic device, the first elastic element applies an acting force on the lock pin in the extending direction, and the power pin is engaged with the lock pin so that the lock pin is in the extended state.

3. The lock system according to claim 2 , wherein the lock pin is provided with:
an executive part, the executive part is used for acting on the top of the lock connecting rod;
a connecting part, the connecting part is connected to an end of the executive part away from the cavity, the connecting part is provided with a second accommodating cavity, and the second accommodating cavity is used for accommodating the power pin;
wherein, the first elastic element is connected to an end of the connecting part away from the executive part, the first elastic element abuts between the connecting part and the inner surface of the first accommodating cavity, the first elastic element applies an acting force to the connecting part in the extending direction;
preferably, the power pin has a head end and a tail end along the height direction, the head end of the power pin is embedded in the second accommodating cavity, and the first electromagnetic induction element is provided at the tail end of the power pin;
the inner surface of the second accommodating cavity is provided with a first inclined part, the head end of the power pin is provided with a second inclined part matching with the first inclined part;
wherein, when the power pin is engaged with the lock pin, the first inclined part is attached to the second inclined part;
when the power pin is detached from the lock pin, the second inclined part moves downward relative to the first inclined part and applies an acting force in the retracted direction to the lock pin, so that the lock pin is in the retracted state.

4. The lock system according to claim 3 , wherein a second elastic element is sleeved on the tail end of the power pin, and the second elastic element applies an acting force to the power pin in a direction close to the connection part;
preferably, the force applied by the second elastic element to the power pin is greater than the gravity of the power pin.

5. The lock system according to claim 3 , wherein the secondary lock mechanism further comprises an upper housing, the upper housing is pressing against and detachably connected to the first lower housing;
the upper housing is provided with a fourth accommodating cavity, and a first sensor is provided in the fourth accommodating cavity;
a second electromagnetic induction element is provided on the executive part;
wherein, the first sensor acts on the second electromagnetic induction element to detect that the executive part is in the extended state;
preferably, a second sensor is also provided in the fourth accommodating cavity, and the second sensor acts on the second electromagnetic induction element to detect that the executive part is in the retracted state;
preferably, the second electromagnetic induction element is magnetic steel.

6. The lock system according to claim 1 , wherein the secondary lock mechanism is used to press against the middle of the lock connecting rod;
and/or, the primary lock mechanism comprises three of the lock bases, three of the lock bolts are connected to the lock connecting rod, the three of the lock bolts and the three of the lock bases are configured to be correspondingly one-on-one;
and/or, one side of the lock connecting rod facing the lock base is further provided with an unlocking block, the unlocking block is an arc-shaped protrusion formed outward from the lock connecting rod, the top of the unlocking block is an inner arc groove recessed toward the lock connecting rod;
and/or, the lock system comprises a plurality of the secondary lock mechanism, and the plurality of the secondary lock mechanism is used for evenly pressing against the top of the lock connecting rod.

7. A quick exchange bracket assembly, wherein the quick exchange bracket assembly comprises a quick exchang

Assignees

• Shanghai Dianba New Energy Tech Co Ltd
• Aulton New Energy Autom Tech Group

Inventors

• Zhang Jianping
• Huang Chunhua
• Lan Zhibo

Classifications

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title

• E05B2047/0067

  Monitoring · CPC title

• E05B2047/0016

  with linearly reciprocating motion · CPC title

• E05B83/00

  Vehicle locks specially adapted for particular types of wing or vehicle (locks specially adapted for bicycles E05B71/00; locking arrangements for non-fixed vehicle roofs B60J7/185; latching means for sideboards or tailgates of open load compartments B62D33/037) · CPC title

• B60L53/80

  Exchanging energy storage elements, e.g. removable batteries · CPC title