CN215332049U

CN215332049U - Electronic lock for new energy automobile charging seat

Info

Publication number: CN215332049U
Application number: CN202121389139.1U
Authority: CN
Inventors: 黎欢乐; 曾绍鹏; 董善希
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 an electronic lock for a new energy automobile charging seat, which has more stable performance. The technical scheme adopted comprises the following steps: casing and establishing motor in the casing, still be equipped with passive tooth swivel nut, drive screw in the casing, passive tooth swivel nut has worm wheel portion and establishes the straight gear portion of worm wheel portion one end, drive screw has the locking lever portion and establishes the worm portion of locking lever portion one end, drive screw passes through the worm wheel portion with the worm wheel portion normal running fit of passive tooth swivel nut, the motor passes through the straight-tooth gear and drives passive tooth swivel nut rotates, the rotation of passive tooth swivel nut drives drive screw linear movement.

Description

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. 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; 2. 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 an electronic lock for a new energy automobile charging seat, which has more stable performance.

In order to solve the above problems, the technical scheme adopted by the utility model comprises: casing and establishing motor in the casing, its characterized in that: still be equipped with passive tooth swivel nut, drive screw in the casing, passive tooth swivel nut has worm wheel portion and establishes the straight gear portion of worm wheel portion one end, drive screw has lock lever portion and establishes the worm portion of lock lever portion one end, drive screw passes through worm wheel portion with the worm wheel portion normal running fit of passive tooth swivel nut, the motor passes through the straight-tooth gear and drives passive tooth swivel nut rotates, the rotation of passive tooth swivel nut drives drive screw rectilinear movement.

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: and the front end of the worm part extends to form a manual unlocking connecting rod.

New energy automobile electronic lock for charging seat, its characterized in that: the driven tooth threaded sleeve is connected with a manual unlocking mechanism through a manual unlocking connecting rod.

New energy automobile electronic lock for charging seat, its characterized in that: the bottom of the shell is provided with a positioning connecting buckle.

New energy automobile electronic lock for charging seat, its characterized in that: the end part of the shell is provided with a first sealing ring, and the lock rod part of the transmission screw rod is arranged in the first 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.

New energy automobile electronic lock for charging seat, its characterized in that: 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.

The electronic lock for the new energy automobile charging seat has the beneficial effects that:

1. 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;

2. 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 a schematic structural diagram of an electronic lock for a charging dock of a new energy vehicle according to the present invention, showing an unlocked state;

fig. 2 is a schematic structural view of the electronic lock for the charging dock of the new energy vehicle according to the present invention, showing a locked state;

FIG. 3 is a side view of the electronic lock for the charging stand of the new energy vehicle according to the present invention;

FIG. 4 is a schematic structural view of a driven tooth insert according to the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic view of the construction of the drive screw of the present invention.

Detailed Description

As shown in fig. 1 to 6, the electronic lock for a new energy automobile charging seat of the present invention includes a housing 1, and a motor 2, a driven gear screw 3 and a transmission screw 4 which 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).

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 23 is arranged in the shell 1, and a limiting sliding block 15 arranged between the limiting walls 23 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 other end of the worm part 5 is provided with a positioning turntable 16. The positioning rotary disc 16 is arranged in a positioning rotary disc mounting groove in the shell 1 to play a role in stabilizing the driven tooth screw sleeve 3.

Preferably, a manual unlocking connecting rod 17 extends from the front end of the worm part 8. The driven gear thread insert 3 is connected with a manual unlocking mechanism 18 through a manual unlocking connecting rod 17. The front end of the manual unlocking connecting rod 17 is provided with an annular mounting groove, and a clamp spring is arranged in the annular mounting groove to achieve the effect of being conveniently connected with the manual unlocking mechanism 18.

Preferably, the bottom of the housing 1 is provided with a positioning connection buckle 19. So as to be conveniently connected with the AC socket in a positioning way.

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 rod 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 and the normal unlocking cannot be realized, the manual unlocking mechanism can be pulled to drive the lock rod to move backwards, so that the manual emergency unlocking is realized.

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. 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: still be equipped with passive tooth swivel nut (3), drive screw (4) in casing (1), passive tooth swivel nut (3) have worm gear portion (5) and establish straight gear portion (6) of worm gear portion (5) one end, drive screw (4) have lock lever portion (7) and establish worm lever portion (8) of lock lever portion (7) one end, drive screw (4) pass through worm lever portion (8) with worm gear portion (5) normal running fit of passive tooth swivel nut (3), motor (2) drive through straight-teeth gear (9) passive tooth swivel nut (3) rotate, the rotation of passive tooth swivel nut (3) drives drive screw (4) linear movement.

2. The electronic lock for the new energy automobile charging seat according to claim 1, 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).

3. The electronic lock for the new energy automobile charging seat according to claim 1, 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).

4. The electronic lock for the new energy automobile charging seat according to claim 1, wherein: and a positioning turntable (16) is arranged at the other end of the worm wheel part (5).

5. The electronic lock for the new energy automobile charging seat according to claim 1, characterized in that: the front end of the worm part (8) extends to form a manual unlocking connecting rod (17).

6. The electronic lock for the new energy automobile charging seat according to claim 5, characterized in that: the driven gear threaded sleeve (3) is connected with a manual unlocking mechanism (18) through a manual unlocking connecting rod (17).

7. The electronic lock for the new energy automobile charging seat according to claim 1, characterized in that: the bottom of the shell (1) is provided with a positioning connecting buckle (19).

8. The electronic lock for the new energy automobile charging seat according to claim 1, characterized in that: the left end of casing (1) is equipped with first sealing washer (20), establish in drive screw (4) lock lever portion (7) first sealing washer (20).

9. The electronic lock for the new energy automobile charging seat according to claim 3, characterized in that: and the limiting sliding block (15) is provided with a guide rail (21).

10. The electronic lock for the new energy automobile charging seat according to claim 5, characterized in that: the right end of the shell (1) is provided with a second sealing ring (22), and the manual unlocking connecting rod (17) is arranged in the second sealing ring (22).