Double-position feedback electronic lock of new energy automobile charging seat

Abstract

The utility model discloses a double-position feedback electronic lock for a charging seat of a new energy automobile. According to the technical scheme, the emergency unlocking device comprises a shell, a motor arranged in the shell, a PCB arranged at the bottom of the motor and connected with the motor, a lock rod telescopically arranged at the front end of the shell and an emergency unlocking pull rod arranged at the rear end of the shell, and an output shaft of the motor is meshed with a transmission shaft tooth through a conical tooth. The other end of the transmission shaft tooth is meshed with the rack through the sector tooth. The electronic lock has the advantages that 1, the electronic lock can meet the requirements of a multi-wire system electronic lock with one-way position feedback or two-way position feedback; 2, the transmission volume is small, the thrust is large, and the stability is good;

Description

Technical Field

[0001] The utility model belongs to the field of new energy electric vehicles, and particularly relates to an electronic lock for a charging seat of a new energy vehicle. Background Art

[0002] The electronic lock for a charging seat of a new energy vehicle is used for locking after the charging gun of a new energy vehicle is docked with the charging seat to ensure the safety of the charging process. The structure of the traditional electronic lock for a charging seat of a new energy vehicle includes: a housing, a motor arranged in the housing, a speed change gear set arranged on the output shaft of the motor, a transmission shaft gear meshed with the speed change gear set, a locking rack meshed with the transmission shaft gear, and a lock rod arranged at the front end of the locking rack. The existing disadvantages are: there is only single-direction position feedback. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an electronic lock with double-position feedback for a charging seat of a new energy vehicle.

[0004] To solve the above problems, the technical solution adopted by the utility model includes: a housing, a motor arranged in the housing, a PCB board arranged at the bottom of the motor and connected thereto, a lock rod telescopically arranged at the front end of the housing, and an emergency unlocking pull rod arranged at the rear end of the housing. The characteristics are: the output shaft of the motor is engaged with a transmission shaft gear through a bevel gear, and the other end of the transmission shaft gear is engaged with a rack through a sector gear; the rack is connected to the lock rod through a front connecting part, and a front trigger protrusion is arranged on one side corresponding to the front connecting part, the rack is connected to the emergency unlocking pull rod through a rear connecting part, and a rear trigger protrusion is arranged on one side corresponding to the rear connecting part; a first micro switch cooperating with the front trigger protrusion is arranged at the front end of the PCB board, and a second micro switch cooperating with the rear trigger protrusion is arranged at the rear end of the PCB board.

[0005] The electronic lock with double-position feedback for a charging seat of a new energy vehicle is characterized in that: a positioning protrusion is arranged at the end of the sector gear.

[0006] The electronic lock with double-position feedback for a charging seat of a new energy vehicle is characterized in that: the bottom of the rack is provided with a first slide rail and a second slide rail arranged side by side, and a first chute and a second chute which are respectively in sliding fit with the first slide rail and the second slide rail are arranged in the housing.

[0007] The electronic lock with double-position feedback for a charging seat of a new energy vehicle is characterized in that: the emergency unlocking pull rod is hung on the rack through a pull plate at the front end.

[0008] The dual-position feedback electronic lock for a new energy vehicle charging seat is characterized in that: a third slide rail is provided at the lower end of the pull plate, and a fourth slide rail is provided at the upper end; a third chute slidably engaged with the third slide rail is provided at the bottom of the housing; a protective plate is provided inside the housing, and a fourth chute slidably engaged with the fourth slide rail is provided on the protective plate.

[0009] The dual-position feedback electronic lock for a new energy vehicle charging seat is characterized in that: a return spring is provided at the rear end of the pull plate.

[0010] The dual-position feedback electronic lock for a new energy vehicle charging seat is characterized in that: a pull rod sealing ring and a pull rod sealing ring fixing cover are provided at the connection between the emergency unlocking pull rod and the housing.

[0011] The dual-position feedback electronic lock for a new energy vehicle charging seat is characterized in that: a wire harness sealing ring and a wire harness sealing ring fixing cover are provided at the end of the housing.

[0012] The dual-position feedback electronic lock for a new energy vehicle charging seat is characterized in that: a housing cover is provided on the housing, and mounting hole columns are provided on the housing cover.

[0013] The advantages of the dual-position feedback electronic lock for a new energy vehicle charging seat of the present utility model are as follows:

[0014] 1. The electronic lock can be compatible with the requirements of multi-wire electronic locks with single-direction position feedback or bi-directional position feedback;

[0015] 2. The transmission has a small volume, a large thrust, and good stability.

[0016] The present utility model will be further described below in conjunction with the accompanying drawings of the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the electronic lock of the present utility model;

[0018] Figure 2 is an exploded view of the new electronic lock of the present utility model;

[0019] Figure 3 is a cross-sectional view of the new electronic lock of the present utility model;

[0020] Figure 4 is a schematic internal structure diagram of the new electronic lock of the present utility model;

[0021] Figure 5 is a schematic connection diagram of the transmission shaft gear and the rack of the present utility model;

[0022] Figure 6 is a schematic structural diagram of the rack of the present utility model;

[0023] Figure 7It is a schematic structural view of the housing of the present utility model;

[0024] Figure 8 It is a schematic structural view of the drawplate of the present utility model. Detailed implementation manners

[0025] Referring to Figure 1-8 As shown, the dual-position feedback electronic lock for a new energy vehicle charging seat of the present utility model includes a housing 1, a motor 2 provided in the housing 1, a PCB board 3 provided at the bottom of the motor 2 and connected thereto, a lock rod 4 telescopically provided at the front end of the housing 1, and an emergency unlocking pull rod 5 provided at the rear end of the housing 1. The output shaft of the motor 2 is engaged with a transmission shaft gear 7 through a bevel gear 6. The other end of the transmission shaft gear 7 is engaged with a rack 9 through a sector gear 8. The rack 9 is connected to the lock rod 4 through a front connecting portion 10 and fixed by a first pin 35. A front trigger protrusion 11 is integrally formed on one side of the rack 9 corresponding to the front connecting portion 10. The rack 9 is connected to the emergency unlocking pull rod 5 through a rear connecting portion 12, and a rear trigger protrusion 13 is integrally formed on one side of the rack 9 corresponding to the rear connecting portion 12. A first microswitch 14 cooperating with the front trigger protrusion 11 is provided at the front end of the PCB board 3, and a second microswitch 15 cooperating with the rear trigger protrusion 13 is provided at the rear end of the PCB board 3.

[0026] Preferably, a positioning protrusion 16 is provided at the end of the sector gear 8 for positioning after the sector gear 8 rotates in place to limit the sliding stroke of the rack 9.

[0027] Preferably, the bottom of the rack 9 is provided with a first slide rail 17 and a second slide rail 18 arranged side by side, and first slide grooves 19 and second slide grooves 20 which are respectively in sliding fit with the first slide rail 17 and the second slide rail 18 are provided in the housing 1, so that the sliding of the rack 9 is more stable.

[0028] Preferably, the emergency unlocking pull rod 5 is hooked to the rear connecting portion 12 of the rack 9 through a drawplate 21 at the front end. The drawplate 21 and the emergency unlocking pull rod 5 are fixed by a second pin 37. The front end of the drawplate 21 and the rear connecting portion 12 are usually movably connected by a hanging platform 36 for convenient assembly. A third slide rail 22 is provided at the lower end of the drawplate 21, and a fourth slide rail 24 is provided at the upper end. A third slide groove 25 which is in sliding fit with the third slide rail 22 is provided at the bottom of the housing 1, and a guard plate 26 is provided in the housing 1. A fourth slide groove 27 which is in sliding fit with the fourth slide rail 24 is provided on the guard plate 26 to improve the sliding stability of the drawplate 21. The guard plate 26 is fixed in the housing 1 by screws.

[0029] Preferably, a return spring 28 is provided at the rear end of the drawplate 21 for resetting the emergency unlocking pull rod 5.

[0030] Preferably, a pull rod sealing ring 29 and a pull rod sealing ring fixing cover 30 are provided at the connection between the emergency unlocking pull rod 5 and the housing 1 to achieve sealing of the connection. A wire harness sealing ring 31 and a wire harness sealing ring fixing cover 32 are provided at the end of the housing 1. The wire harness passes through the wire harness sealing ring 31 and is connected to the PCB board 3 to achieve sealing of the wire harness.

[0031] Preferably, a housing cover 33 is provided on the housing 1, and mounting hole columns 34 are provided on the housing cover 33 to facilitate the installation of the housing 1.

[0032] Working principle:

[0033] Locking process: The power supply provides a forward current to the positive and negative electrodes of the motor, the motor rotates forward, drives the transmission shaft gear and the rack to move, the movement of the rack causes the lock rod to move forward. When the rack reaches the locking position, the front trigger protrusion of the rack triggers the first micro switch, the first micro switch changes from open to closed, and the PCB board transmits the position signal.

[0034] Unlocking process: The power supply provides a reverse current to the positive and negative electrodes of the motor, the motor rotates in reverse, drives the transmission shaft gear and the rack to move, the movement of the rack causes the lock rod to move backward. When the rack reaches the unlocking position, the rear trigger protrusion of the rack triggers the second micro switch, the second micro switch changes from open to closed, and the PCB board transmits the position signal.

[0035] As described above, it is not a limitation in any form to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to the above-disclosed structure and technical content to be equivalent implementation cases of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A dual-position feedback electronic lock for a new energy vehicle charging seat, comprising a housing (1), a motor (2) arranged inside the housing (1), a PCB board (3) arranged at the bottom of the motor (2) and connected thereto, a lock rod (4) telescopically arranged at the front end of the housing (1), and an emergency unlocking pull rod (5) arranged at the rear end of the housing (1), characterized in that: The output shaft of the motor (2) is engaged with the transmission shaft gear (7) through a bevel gear (6), and the other end of the transmission shaft gear (7) is engaged with a rack (9) through a sector gear (8); the rack (9) is connected to the lock rod (4) through a front connecting portion (10), and a front trigger protrusion (11) is provided on one side corresponding to the front connecting portion (10), the rack (9) is connected to the emergency unlocking pull rod (5) through a rear connecting portion (12), and a rear trigger protrusion (13) is provided on one side corresponding to the rear connecting portion (12); a first microswitch (14) cooperating with the front trigger protrusion (11) is provided at the front end of the PCB board (3), and a second microswitch (15) cooperating with the rear trigger protrusion (13) is provided at the rear end.

2. The dual-position feedback electronic lock for a new energy vehicle charging stand according to claim 1, characterized in that: A positioning protrusion (16) is provided at the end of the sector gear (8).

3. The dual-position feedback electronic lock for a new energy vehicle charging socket according to claim 1, wherein: First sliding rails (17) and second sliding rails (18) are arranged side by side at the bottom of the rack (9), and a first sliding groove (19) and a second sliding groove (20) which are respectively in sliding cooperation with the first sliding rails (17) and the second sliding rails (18) are provided in the housing (1).

4. The dual-position feedback electronic lock for a new energy vehicle charging seat according to claim 1, characterized in that: The emergency unlocking pull rod (5) is hooked to the rack (9) through a pull plate (21) at the front end.

5. The dual-position feedback electronic lock for a new energy vehicle charging seat according to claim 4, characterized in that: A third sliding rail (22) is provided at the lower end of the pull plate (21), and a fourth sliding rail (24) is provided at the upper end. A third sliding groove (25) which is in sliding cooperation with the third sliding rail (22) is provided at the bottom of the housing (1), a guard plate (26) is provided in the housing (1), and a fourth sliding groove (27) which is in sliding cooperation with the fourth sliding rail (24) is provided on the guard plate (26).

6. The dual-position feedback electronic lock for a new energy vehicle charging seat according to claim 4, characterized in that: A return spring (28) is provided at the rear end of the pull plate (21).

7. The dual-position feedback electronic lock for a new energy vehicle charging seat according to claim 1, characterized in that: A pull rod sealing ring (29) and a pull rod sealing ring fixing cover (30) are provided at the connection of the emergency unlocking pull rod (5) and the housing (1).

8. The dual-position feedback electronic lock for a new energy vehicle charging dock according to claim 1, characterized in that: A wire harness sealing ring (31) and a wire harness sealing ring fixing cover (32) are provided at the end of the housing (1).

9. The dual-position feedback electronic lock for a new energy vehicle charging socket according to claim 1, characterized in that: A housing cover (33) is provided on the housing (1), and mounting hole columns (34) are provided on the housing cover (33).

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