CN215332111U

CN215332111U - Manual unlocking device for electronic lock and electronic lock for new energy automobile charging seat

Info

Publication number: CN215332111U
Application number: CN202121388821.9U
Authority: CN
Inventors: 黎欢乐; 曾绍鹏; 陈存勇
Original assignee: Yueqing Bada Optical Electrical Technology Co ltd
Current assignee: Yueqing Bada Optical Electrical Technology Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-28
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a manual unlocking device for an electronic lock with better performance and an electronic lock for a new energy automobile charging seat. The technical scheme adopted comprises the following steps: the unlocking rod, the pressure spring, the sleeve and the unlocking pull rope; the front end of the sleeve is provided with a fixed mounting seat connected with the electronic lock, and the unlocking rod is movably arranged in the fixed mounting seat; the unlocking pull rope is arranged in the sleeve in a penetrating mode, and the front end of the unlocking pull rope is connected with the unlocking rod; the compression spring is sleeved between the unlocking rod and the fixed mounting seat. Has the advantages that: the unlocking rod and the locking rod are arranged on the same central line, and when the unlocking pull rope is rapidly pulled and pulled, the stress is more uniform, so that the phenomenon of clamping cannot be caused, a sleeve protective pipe is arranged outside the unlocking pull rope, the bending of one degree can be provided on the layout of the automobile body, the clamping stagnation phenomenon is prevented, and meanwhile, the sleeve also plays a dustproof role.

Description

Manual unlocking device for electronic lock and electronic lock for new energy automobile charging seat

Technical Field

The utility model relates to an electronic lock for a new energy automobile charging seat.

Background

At present, new energy automobiles are rapidly developed and gradually replace traditional fuel oil automobiles, the charging and discharging requirements and standards of new energy are also different and improved, and the requirements on alternating current charging electronic locks are higher and higher. The electronic locks on the market at present are various in types, but have many corresponding problems, and the main defects are as follows: 1. the electronic lock emergency unlocking mode is connected with the motor transmission mechanism into a whole, namely the electronic lock drives the emergency unlocking pull rope to move back and forth while transmitting, so that the risk of clamping the pull rope by a vehicle body or other foreign matters exists, the function of the whole electronic lock (locking/unlocking) is failed, and the electric vehicle cannot be charged; 2. the manual unlocking device is usually driven to reset by a C-shaped unlocking sheet or a reset unlocking bevel gear arranged on the side surface of the unlocking rod, and the C-shaped unlocking sheet or the reset unlocking bevel gear is not on the same central line with the unlocking rod, so that the phenomenon of locking is easily caused when an unlocking pull rope of the manual unlocking device is quickly pulled; 3. most of the existing charging seat electronic locks adopt a rack transmission structure for locking and unlocking, and have large friction force with a shell guide groove during movement, and a rack injection molding part structure has deformation risk, so that the lock rod movement resistance is increased, and the structural life and the functional stability of a product are influenced; 4. most of existing electronic lock finished products are complex in assembly, multiple in assembly procedures, relatively high in cost, large in size after assembly, and inaccurate position feedback signal function is not available after part of electronic locks are locked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a manual unlocking device for an electronic lock and an electronic lock for a new energy automobile charging seat, which have better performance.

In order to solve the above problems, the technical scheme adopted by the utility model comprises: the unlocking rod, the pressure spring, the sleeve and the unlocking pull rope; the front end of the sleeve is provided with a fixed mounting seat connected with the electronic lock, and the unlocking rod is movably arranged in the fixed mounting seat; the unlocking pull rope is arranged in the sleeve in a penetrating mode, and the front end of the unlocking pull rope is connected with the unlocking rod; the compression spring is sleeved between the unlocking rod and the fixed mounting seat.

The manual unlocking device for the electronic lock is characterized in that: the front end of the unlocking rod is provided with a U-shaped connecting groove.

The manual unlocking device for the electronic lock is characterized in that: the rear end of the sleeve is provided with a fixing buckle.

The manual unlocking device for the electronic lock is characterized in that: the end part of the fixed buckle is provided with a waterproof sleeve.

The utility model provides a new energy automobile is electronic lock for charging seat, includes the casing and establishes motor in the casing, its characterized in that: the shell is internally provided with a driven gear threaded sleeve and a transmission screw rod, the driven gear threaded sleeve is provided with a worm wheel part and a straight gear part arranged at one end of the worm wheel part, the transmission screw rod is provided with a lock rod part and a worm part arranged at one end of the lock rod part, the transmission screw rod is in running fit with the worm wheel part of the driven gear threaded sleeve through the worm rod part, the motor drives the driven gear threaded sleeve to rotate through a straight gear, and the rotation of the driven gear threaded sleeve drives the transmission screw rod to move linearly; the front end of the worm part extends to form a manual unlocking connecting rod, and the manual unlocking device for the electronic lock is connected with any one of the manual unlocking devices through the manual unlocking connecting rod.

New energy automobile electronic lock for charging seat, its characterized in that: the travel switch is further arranged in the shell, a triggering portion used for triggering the travel switch to act is arranged on the transmission screw, the travel switch is connected with the switching PCB through a signal transmission line, and the switching PCB is connected with the position signal feedback line.

New energy automobile electronic lock for charging seat, its characterized in that: the shell is internally provided with limiting walls, and the transmission screw is provided with a limiting sliding block arranged between the limiting walls.

New energy automobile electronic lock for charging seat, its characterized in that: and a positioning turntable is arranged at the other end of the worm wheel part.

New energy automobile electronic lock for charging seat, its characterized in that: the left end of the shell is provided with a first sealing ring, the lock rod portion of the transmission screw rod is arranged in the first sealing ring, the right end of the shell is provided with a second sealing ring, and the manual unlocking connecting rod is arranged in the second sealing ring.

New energy automobile electronic lock for charging seat, its characterized in that: and the limiting sliding block is provided with a guide rail.

The manual unlocking device for the electronic lock and the electronic lock for the new energy automobile charging seat have the advantages that:

1. the unlocking rod and the locking rod are arranged on the same central line, and when the unlocking pull rope is rapidly pulled and pulled, the stress is more uniform, so that the phenomenon of clamping cannot be caused, a sleeve protective pipe is arranged outside the unlocking pull rope, the bending of one degree can be provided on the layout of the automobile body, the clamping stagnation phenomenon is prevented, and meanwhile, the sleeve also plays a dustproof role.

2. The lock rod main structure of the electronic lock adopts a transmission mode of the screw rod and the threaded sleeve, and locking/unlocking is realized by driving the linear motion of the screw rod to be driven by the rotary motion of the motor, so that the structure has good concentricity, relative motion friction force, small size, high stability and reliability;

3. this patent provides that the electronic lock finished product equipment is simple, and the process is few, and the leakproofness is good and small low-cost electronic lock, has the accurate signal position feedback function of locking simultaneously.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is an exploded view of the novel manual unlocking device for an electronic lock of the present invention;

FIG. 2 is a cross-sectional view of the novel manual unlocking means for the electronic lock of the present invention;

FIG. 3 is a schematic structural diagram of an electronic lock for a charging dock of a new energy vehicle according to the present invention;

FIG. 4 is a schematic view of a partial structure of an electronic lock for a charging dock of a new energy vehicle according to the present invention, showing an unlocked state;

fig. 5 is a schematic view of a partial structure of the electronic lock for the charging dock of the new energy vehicle according to the present invention, showing a locked state;

FIG. 6 is a schematic structural view of a driven tooth insert according to the present invention;

FIG. 7 is a sectional view taken along line A-A of FIG. 6;

FIG. 8 is a schematic view of the construction of the drive screw of the present invention;

fig. 9 is a schematic view of the connection between the manual unlocking connecting rod and the unlocking lever according to the present invention.

Detailed Description

Example 1:

as shown in fig. 1 to 2, the manual unlocking device for an electronic lock according to the present invention includes: an unlocking lever 24, a pressure spring 25, a sleeve 26 and an unlocking cord 27. The front end of the sleeve 26 is provided with a fixed mounting seat 28 connected with the electronic lock, and the fixed mounting seat 28 is provided with an annular clamping groove which is clamped and pulled with the edge of the shell of the electronic lock. The fixed mounting seat 28 and the sleeve 26 may be separated or integrated. The unlocking rod 24 is movably disposed in the fixed mounting seat 28. The unlocking pulling rope 27 penetrates through the sleeve 26, the front end of the unlocking pulling rope is connected with the unlocking rod 24, and a pulling ring is arranged at the rear end of the unlocking pulling rope 27. The pressure spring 25 is sleeved between the unlocking rod 24 and the fixed mounting seat 28.

Preferably, the front end of the unlocking lever 24 is provided with a "U" shaped connecting groove 29, and the locking lever in the electronic lock can be conveniently connected through the "U" shaped connecting groove 29.

Preferably, the rear end of the sleeve 26 is provided with a fixing buckle 30, and the fixing buckle 30 is provided with a splayed clamping foot to be conveniently fixed with a vehicle body. The end of the fixing buckle 30 is provided with a waterproof sleeve 31 to prevent moisture or dust from entering the pipe to influence the sliding of the steel wire rope.

Example 2:

as shown in fig. 3 to 9, the electronic lock for a new energy vehicle charging dock of the present invention includes a housing 1, and a motor 2, a driven gear screw 3, and a transmission screw 4 that are disposed in the housing 1. The motor 2 adopts a permanent magnet direct current speed reduction motor. The driven-tooth thread insert 3 has a worm gear portion 5 formed integrally therewith and a spur gear portion 6 provided at one end of the worm gear portion 5. The drive screw 4 is provided with a lock rod part 7 which is integrally formed and a worm part 8 which is arranged at one end of the lock rod part 7. And the worm part 8 of the transmission screw rod 4 is sleeved in the worm wheel part 5 of the driven tooth thread sleeve 3 and is in running fit with the worm wheel part. And a straight gear 9 is arranged on an output shaft of the motor 2, the straight gear 9 is meshed with the straight gear part 6 of the worm gear part 5, and then the motor 2 drives the driven gear thread sleeve 3 to rotate through the straight gear 9. The rotation of the driven-tooth thread insert 3 drives the transmission screw 4 to move linearly (push in or push back). The front end of the worm part 8 extends to form a manual unlocking connecting rod 17, and a clamp spring 32 is arranged at the top of the manual unlocking connecting rod 17. The manual unlocking means 18 for the electronic lock described in embodiment 1 is connected through the manual unlocking connecting rod 17. When in connection, the clamp spring 32 at the top of the manual unlocking connecting rod 17 is clamped in the U-shaped connecting groove 29 arranged at the front end of the unlocking rod 24.

Preferably, a travel switch 10 is further disposed in the housing 1, and a trigger portion 11 for triggering the travel switch 10 to operate is disposed on the transmission screw rod 4. The travel switch 10 is connected to the relay PCB 13 through a signal transmission line 12, and transmits a signal to the relay PCB 13. The switching PCB 13 is connected with a position signal feedback line 14 to feed back signals.

Preferably, a limiting wall 14 is arranged in the shell 1, and a limiting sliding block 15 arranged between the limiting walls 14 is arranged on the transmission screw rod 4. So as to play a role in limiting the movement of the transmission screw rod 4, when the transmission screw rod is pushed to the limiting wall of the front end shell, the travel switch is triggered, and meanwhile, the transmission screw rod stops moving forwards, so that the locking state is achieved.

Preferably, the left end of the casing 1 is provided with a first sealing ring 20, the locking rod portion 7 of the drive screw 4 is arranged in the first sealing ring 20, the right end of the casing 1 is provided with a second sealing ring 22, and the manual unlocking connecting portion 17 is arranged in the second sealing ring 22. So as to improve the sealing function of the electronic lock.

Preferably, the limiting sliding block 15 is provided with a guide rail 21, and the guide rail 21 is in sliding fit with a guide rail groove in the housing 1, so as to improve the moving stability of the transmission screw rod 4.

The working principle is as follows:

when the transfer PCB provides positive pulse in an unlocking state, the motor rotates positively, the driven gear screw sleeve is driven to rotate through the straight gear, the driven gear screw sleeve rotates to drive the transmission screw rod containing the worm part to advance linearly through rotation of the worm part, when the transmission screw rod advances to reach the limiting wall of the shell, the travel switch is triggered, meanwhile, the travel switch stops advancing to reach a locking state, after the travel switch (normally open) is triggered to be closed, a signal is transmitted to the transfer PCB through a signal transmission line (single-core wire), and then the signal is transmitted to a position signal feedback line in the outgoing line through the transfer PCB.

When the switching PCB board provides negative pulse in an upper locking state, the motor rotates reversely, the driven gear screw sleeve is driven to rotate by the straight gear, the driven gear screw sleeve rotates to drive the transmission screw rod containing the worm rod part to be pushed back linearly by the rotation of the worm wheel part, when the transmission screw rod retreats to the rear limiting wall of the shell, the transmission screw rod stops retreating, the travel switch is released to be normally opened during retreating of the transmission screw rod, signals are transmitted to the switching PCB board through signal transmission lines (single-core wires), and then the signals are transmitted to the position signal feedback line in the outgoing line through the switching PCB board.

When the unlocking is abnormal, the unlocking rod can be driven to move backwards by pulling the unlocking pull rope when the unlocking cannot be normally performed, so that the transmission screw rod is driven to move backwards to the limiting wall to realize unlocking, meanwhile, the driven gear screw sleeve is driven to rotate through the matching of the worm gear part and the worm part, the unlocking pull rope is released after unlocking is completed, and the unlocking rod and the unlocking pull rope are restored to the positions before the unlocking is performed (without driving the transmission screw rod) through the compression force of the pressure spring.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are included in the scope of the present invention.

Claims

1. A manual unlocking device for an electronic lock, comprising: an unlocking rod (24), a pressure spring (25), a sleeve (26) and an unlocking pull rope (27); the front end of the sleeve (26) is provided with a fixed mounting seat (28) connected with the electronic lock, and the unlocking rod (24) is movably arranged in the fixed mounting seat (28); the unlocking pull rope (27) penetrates through the sleeve (26), and the front end of the unlocking pull rope is connected with the unlocking rod (24); the pressure spring (25) is sleeved between the unlocking rod (24) and the fixed mounting seat (28).

2. The manual unlocking apparatus for an electronic lock according to claim 1, wherein: the front end of the unlocking rod (24) is provided with a U-shaped connecting groove (29).

3. The manual unlocking apparatus for an electronic lock according to claim 1, wherein: the rear end of the sleeve (26) is provided with a fixed buckle (30).

4. The manual unlocking apparatus for electronic locks according to claim 3, wherein: the end part of the fixed buckle (30) is provided with a waterproof sleeve (31).

5. The utility model provides a new energy automobile is electronic lock for charging seat, includes casing (1) and establishes motor (2) in casing (1), its characterized in that: the shell (1) is further internally provided with a driven gear threaded sleeve (3) and a transmission screw rod (4), the driven gear threaded sleeve (3) is provided with a worm wheel part (5) and a straight gear part (6) arranged at one end of the worm wheel part (5), the transmission screw rod (4) is provided with a lock rod part (7) and a worm rod part (8) arranged at one end of the lock rod part (7), the transmission screw rod (4) is in running fit with the worm wheel part (5) of the driven gear threaded sleeve (3) through the worm rod part (8), the motor (2) drives the driven gear threaded sleeve (3) to rotate through a straight gear (9), and the rotation of the driven gear threaded sleeve (3) drives the transmission screw rod (4) to move linearly; a manual unlocking connecting rod (17) extends from the front end of the worm part (8), and a manual unlocking device (18) for the electronic lock according to any one of claims 1 to 4 is connected with the manual unlocking connecting rod (17).

6. The electronic lock for the new energy automobile charging seat according to claim 5, wherein: still be equipped with travel switch (10) in casing (1), be equipped with on drive screw (4) and be used for triggering trigger portion (11) that travel switch (10) moved, travel switch (10) are connected with switching PCB board (13) through signal transmission line (12), switching PCB board (13) are connected with position signal feedback line (14).

7. The electronic lock for the new energy automobile charging seat according to claim 5, wherein: be equipped with limiting wall (23) in casing (1), be equipped with on drive screw (4) and arrange in limiting sliding block (15) between limiting wall (23).

8. The electronic lock for the new energy automobile charging seat according to claim 5, wherein: and a positioning turntable (16) is arranged at the other end of the worm wheel part (5).

9. The electronic lock for the new energy automobile charging seat according to claim 5, characterized in that: the left end of casing (1) is equipped with first sealing washer (20), establish lock lever portion (7) of drive screw (4) in first sealing washer (20), the right-hand member of casing (1) is equipped with second sealing washer (22), manual unblock connecting rod (17) are established in second sealing washer (22).

10. The electronic lock for the new energy automobile charging stand according to claim 7, characterized in that: and the limiting sliding block (15) is provided with a guide rail (21).