CN220556640U - Motor electronic lock actuator for direct-current charging gun - Google Patents

Abstract

The utility model relates to the technical field of charging guns, in particular to a motor electronic lock actuator for a direct current charging gun, which comprises a hollow electronic lock shell, wherein a motor speed reducer and a micro switch are arranged in an inner cavity of the electronic lock shell, the micro switch is arranged below the motor speed reducer, a motor output shaft is arranged at the front end of the motor speed reducer, and the outer part of the motor output shaft is synchronously rotated and connected with a position feedback mechanism. The position feedback mechanism comprises a feedback wheel, a connecting shaft and a lock core, wherein the feedback wheel, the connecting shaft and the lock core are coaxially arranged, the feedback wheel and the connecting shaft are sequentially sleeved outside the motor output shaft from the back to the front, the feedback wheel is positioned in the inner cavity of the electronic lock shell, the connecting shaft is connected with the electronic lock shell in a penetrating mode, the lock core is sleeved at the front end of the connecting shaft and positioned outside the electronic lock shell, the lock core corresponds to the position of a manual button on the external charging gun, and the lock core can be locked in a buckling mode. The utility model can solve the technical problems of low product percent of pass, unstable locking and unlocking and high manufacturing cost caused by poor feedback of signals in the electronic lock of the traditional charging gun.

Description

Motor electronic lock actuator for direct-current charging gun

Technical Field

The utility model relates to the technical field of charging guns, in particular to a motor electronic lock actuator for a direct current charging gun.

Background

With the development of new energy technology, new energy automobiles are increasingly commonly used, and the new energy automobiles are usually charged by connecting a charging gun with a charging pile. The rifle that charges is as new energy automobile's core battery charging outfit, in the charging process, in order to improve reliability and the security in the charging process of rifle and vehicle charge, the inside of rifle that charges can set up the electronic lock usually.

At present, the types and styles of new energy automobile direct current charging guns on the market are more, and in the locking process of a conventional charging gun, an electronic lock is often invalid due to unstable motor signal feedback, so that the problems of high rejection rate and increased manufacturing cost are solved, and the electronic lock is locked, if the electronic lock fails, the manual reset unlocking is troublesome, and the charging gun lock device is easy to damage.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the motor electronic lock actuator for the direct current charging gun, which adopts a motor electronic lock signal feedback mode, has stable signal feedback state, can accurately control locking and unlocking, and can solve the technical problems of low product qualification rate, unstable locking and unlocking and high manufacturing cost caused by poor internal signal feedback contact of an electronic lock in the traditional charging gun.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a motor electronic lock actuator for a direct current charging gun, which comprises a hollow electronic lock shell, wherein a motor speed reducer and a micro switch are arranged in an inner cavity of the electronic lock shell, the micro switch is arranged below the motor speed reducer, the front end of the motor speed reducer is provided with a motor output shaft, and the outer part of the motor output shaft is synchronously connected with a position feedback mechanism in a rotating way;

the position feedback mechanism comprises a feedback wheel, a connecting shaft and a lock core which are coaxially arranged, the feedback wheel and the connecting shaft are sequentially sleeved outside the motor output shaft from the back to the front, the feedback wheel is located in an inner cavity of the electronic lock shell, the connecting shaft is connected with the electronic lock shell in a penetrating mode, the lock core is sleeved at the front end of the connecting shaft and located outside the electronic lock shell, the lock core corresponds to the position of a manual button on an external charging gun, and the lock core can be locked in a buckling mode.

By adopting the technical scheme, the motor output shaft is driven by the motor reducer to drive the position feedback mechanism to rotate, wherein when the feedback wheel rotates to the locking position, the micro switch under the trigger start is triggered to feed back and output a locking signal, the lock cylinder rotates to the locking position, and the mechanical lock button of the charging gun is clamped and locked; when the feedback wheel rotates to the unlocking position, the feedback wheel releases the micro switch to feed back and output an unlocking signal, the lock cylinder rotates to the unlocking position, and the charging gun button is released to unlock.

In some possible embodiments, the micro switch is provided with a contact reed, and the bottom end of the feedback wheel corresponds to the position of the contact reed. When the feedback wheel rotates to the locking position, the feedback wheel is abutted against the contact reed, and the micro switch is started to feed back and output a locking signal to lock; when the feedback wheel rotates to the unlocking position, the contact reed is loosened, and the micro switch outputs an unlocking signal in a feedback way to unlock.

In some possible embodiments, the electronic lock housing includes a hollow bottom shell and an upper cover covering an upper opening of the bottom shell, and the bottom shell is in sealing connection with the upper cover.

In some possible embodiments, the front end of the bottom shell is connected with an end cover, the connecting shaft penetrates through the front end face of the bottom shell, the front end of the connecting shaft penetrates through the end cover, and a containing cavity for the connecting shaft and the lock cylinder to rotate is formed in the end cover.

In some possible embodiments, a waterproof cover is connected between the bottom shell and the end cover in a sealing manner, and the waterproof cover is sleeved outside the connecting shaft and forms a sealing connection with the connecting shaft. When fixed connection between drain pan and the end cover, can fasten waterproof cover clamp between drain pan and end cover for improve the waterproof performance of sealing of drain pan, end cover and connecting axle mutual hookup location, avoid steam to get into in the electronic lock shell and cause the short circuit damage to inside motor reducer and micro-gap switch.

In some possible embodiments, the outer portion of the connecting shaft is sleeved with an O-ring, and the O-ring is positioned between the connecting shaft and the bottom shell to form a sealed connection. The O-shaped ring is made of rubber or silica gel, so that waterproof sealing performance of a connecting position between the connecting shaft and the bottom shell is improved, and meanwhile, shock absorption and abrasion between the connecting shaft and the bottom shell can be reduced.

In some possible embodiments, the front end of the connecting shaft is provided with an unlocking reset shaft, the front end of the end cover is provided with an unlocking hole, the unlocking reset shaft is located on the side face of the unlocking hole and corresponds to the position of the unlocking hole, and an external unlocking button can penetrate through the unlocking hole to be abutted with the unlocking reset shaft and drive the unlocking reset shaft to rotate to the unlocking position. When the electronic lock fails and cannot be unlocked normally, a user manually presses the unlocking button to abut against the unlocking reset shaft to rotate from the outside of the charging gun, then the connecting shaft is driven to rotate, the feedback wheel is driven to rotate to the unlocking position, the micro switch feeds back and outputs unlocking signals, the lock core releases the charging gun button to unlock, and therefore manual unlocking reset is achieved.

In some possible embodiments, the bottom shell is provided with a clamping block on at least two outer sides, the upper cover is provided with a clamping groove corresponding to the clamping block in position, and the clamping block is in snap fit with the clamping groove. Through setting up fixture block and draw-in groove and through the cooperation between the two, realize sealing connection between upper cover and the drain pan, easy to assemble dismantles.

In some possible embodiments, an upper cover waterproof board is disposed between the bottom shell and the upper cover, so as to improve the sealing waterproof performance of the connection position between the bottom shell and the upper cover.

In some possible embodiments, the rear end of the electronic lock shell is provided with a threading hole, the motor speed reducer and the micro switch are both connected with an electronic wire, the outside of the electronic wire is covered with a wire waterproof ring, the wire waterproof ring is arranged in the threading hole to form interference fit with the wire waterproof ring, and the electronic wire stretches out of the threading hole to be electrically connected with an external power supply.

The beneficial effects of the utility model are as follows:

according to the motor electronic lock actuator for the direct-current charging gun, the position feedback mechanism is arranged to be matched with the micro switch, the motor speed reducer drives the feedback wheel to rotate, the micro switch is triggered to feed back locking and unlocking signals, the signal feedback state is stable, locking or unlocking of the lock core can be accurately controlled, and the motor electronic lock actuator is simple in structure and low in manufacturing cost; when the electronic lock fails and can not be unlocked normally, the unlocking button is manually pressed to drive the unlocking reset shaft to rotate for unlocking, and the manual resetting unlocking is convenient and has good safety performance.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of a motor electronic lock actuator for a DC charging gun according to the present utility model;

FIG. 2 is a schematic diagram of the explosion structure of the motor electronic lock actuator for the DC charging gun according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the motor electronic lock actuator for the DC charging gun of the present utility model;

FIG. 4 is a schematic view of the internal structure of the motor electronic lock actuator without the cover of the present utility model;

FIG. 5 is a schematic view of the position of the micro switch in the bottom case according to the present utility model;

FIG. 6 is a schematic diagram of the positional relationship between an unlock button and a motor electronic lock actuator in the present utility model;

fig. 7 is a schematic view of the installation of the motor electronic lock actuator in a dc charging gun according to the present utility model.

The reference numerals in the figures illustrate: 1. an electronic lock housing; 11. a bottom case; 12. an upper cover; 13. an end cap; 131. a receiving chamber; 132. unlocking the hole; 14. a clamping block; 15. a clamping groove; 16. an upper cover waterproof board; 17. a threading hole; 2. a motor reducer; 21. a motor output shaft; 3. a micro-switch; 31. a contact spring; 4. a position feedback mechanism; 41. a feedback wheel; 42. a connecting shaft; 421. unlocking the reset shaft; 43. a lock core; 5. a waterproof cover; 6. an O-ring; 7. an electronic wire; 8. a waterproof wire ring; 100. a manual button; 200. an unlock button.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation.

In the description of the present embodiment, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "front", "rear", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience in describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element referred to has a specific direction, is configured and operated in a specific direction, and therefore, should not be construed as limiting the present utility model.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, in one embodiment of the present utility model, there is provided a motor electronic lock actuator for a direct current charging gun, comprising a hollow electronic lock housing 1, wherein a motor reducer 2 and a micro switch 3 are disposed in an inner cavity of the electronic lock housing 1. Wherein, micro-gap switch 3 is located the below of motor reduction gear 2, and the front end of motor reduction gear 2 is equipped with motor output shaft 21, and motor output shaft 21 adaptation is connected with synchronous pivoted position feedback mechanism 4. Wherein the rotating speed of the motor speed reducer 2 can reach 20000 revolutions per minute, and the speed reduction ratio is 1:150.

referring to fig. 2 and 3, the position feedback mechanism 4 includes a feedback wheel 41, a connecting shaft 42, and a lock cylinder 43 coaxially provided, and the motor output shaft 21, the feedback wheel 41, the connecting shaft 42, and the lock cylinder 43 are all connected by non-circular shafts and are mutually adapted in shape. The feedback wheel 41 and the connecting shaft 42 are made of POM material, and the lock cylinder 13 is made of zinc alloy material. The feedback wheel 41 and the connecting shaft 42 are sequentially sleeved outside the motor output shaft 21 from back to front, and the front end of the motor output shaft 21 is in plug-in fit with the rear end of the connecting shaft 42 to realize synchronous rotation connection of the feedback wheel and the connecting shaft. Referring to fig. 4, the feedback wheel 41 is located in the inner cavity of the electronic lock housing 1, the connecting shaft 42 penetrates through the electronic lock housing 1, the lock core 43 is sleeved at the front end of the connecting shaft 42 and located outside the electronic lock housing 1, and the lock core 43 corresponds to the position of the manual button 100 (refer to fig. 7) on the external charging gun and can be locked in a buckling manner. The motor reducer 2 drives the motor output shaft 21 to drive the position feedback mechanism 4 to rotate, wherein when the feedback wheel 41 rotates to an up locking position, the micro switch 3 below the trigger start is triggered to feed back and output a locking signal, and the lock cylinder 43 rotates to the up locking position to clamp and lock a mechanical lock button 100 (refer to fig. 6) of the charging gun; when the feedback wheel 41 rotates to the unlocking position, the feedback wheel 41 releases the micro switch 3 to feed back and output an unlocking signal, the lock cylinder 43 rotates to the unlocking position, and the charging gun button is released to unlock.

Referring to fig. 5, the micro switch 3 is provided with a contact reed 31, and the bottom end of the feedback wheel 41 is provided with an outwardly protruding portion, so that the feedback wheel 41 can be abutted against the contact reed 31 by rotating. When the motor reducer 2 drives the feedback wheel 41 to rotate to the locking position, the motor reducer abuts against the contact reed 31, and the micro switch 3 is started to feed back and output a locking signal to lock; when the feedback wheel 41 rotates to the unlocking position, the contact reed 31 is released, and the microswitch 3 outputs an unlocking signal in a feedback manner to unlock.

Referring to fig. 1 and 3, in another embodiment of the present utility model, an electronic lock housing 1 includes a hollow bottom case 11 and an upper cover 12 covering an upper opening of the bottom case 11, and the bottom case 11 is hermetically connected to the upper cover 12. Referring to fig. 4, the front end of the bottom shell 11 is connected with an end cover 13, a connecting shaft 42 penetrates through the front end surface of the bottom shell 11, the front end of the connecting shaft 42 penetrates through the end cover 13, and a containing cavity 131 for rotating the connecting shaft 42 and the lock cylinder 43 is arranged in the end cover 13. The bottom shell 11, the upper cover 12 and the end cover 13 are made of PP (glass fiber with 25 percent) or nylon materials. Referring to fig. 1 and 2, at least two outer sides of the bottom shell 11 are provided with clamping blocks 14, the upper cover 12 is provided with clamping grooves 15 corresponding to the clamping blocks 14, and the clamping blocks 14 and the clamping grooves 15 are in snap fit to realize the fixed connection between the upper cover 12 and the bottom shell 11, so that the upper cover is convenient to install and detach.

Referring to fig. 2 and 3, a waterproof cover 5 made of silica gel is hermetically connected between the bottom shell 11 and the end cover 13, and the waterproof cover 5 is sleeved outside the connecting shaft 42 and forms a sealed connection with the connecting shaft 42. When fixed connection between drain pan 11 and end cover 13, can press from both sides waterproof cover 5 clamp and fix between drain pan 11 and end cover 13 for improve the waterproof performance of sealing of drain pan 11, end cover 13 and connecting axle 42 mutual junction position, avoid steam to get into in the electronic lock shell 1 to inside motor reduction gear 2 and micro-gap switch 3 cause the short circuit damage.

Referring to fig. 1 and 6, the front end of the connection shaft 42 is provided with an unlocking reset shaft 421, and the front end of the end cover 13 is provided with an unlocking hole 132. The unlocking reset shaft 421 is located at a side surface of the unlocking hole 132 and corresponds to the position of the unlocking hole 132, and the external unlocking button 200 can penetrate through the unlocking hole 132 to be abutted with the unlocking reset shaft 421 and drive the unlocking reset shaft 421 to rotate to the unlocking position. When the electronic lock fails and cannot be unlocked normally, a user manually presses the unlocking button 200 from the outside of the charging gun to abut against the unlocking reset shaft 421 to rotate, then the connecting shaft 42 is driven to rotate, the feedback wheel 41 is driven to rotate to the unlocking position, the microswitch 3 feeds back and outputs an unlocking signal, and the lock cylinder 43 releases the charging gun button to unlock, so that manual unlocking reset is realized.

Referring to fig. 2 and 3, a threading hole 17 is formed in the rear end of the electronic lock shell 1, the motor reducer 2 and the micro switch 3 are connected with an electronic conducting wire 7, a silica gel wire waterproof ring 8 is wrapped outside the electronic conducting wire 7, the wire waterproof ring 8 is arranged in the threading hole 17 and forms interference fit with the threading hole, and the electronic conducting wire 7 extends out of the threading hole 17 to be electrically connected with an external power supply.

In another embodiment of the present utility model, as shown in fig. 3, an O-ring 6,O ring 6 is sleeved on the outer portion of the connecting shaft 42, and is positioned between the connecting shaft 42 and the bottom shell 11 to form a sealing connection. The O-shaped ring 6 is made of rubber or silica gel, so that waterproof sealing performance of the connecting position between the connecting shaft 42 and the bottom shell 11 is improved, and meanwhile, shock absorption and abrasion between the connecting shaft and the bottom shell can be reduced.

Referring to fig. 3, an upper cover waterproof board 16 made of silica gel is further disposed between the bottom shell 11 and the upper cover 12, so as to improve the sealing and waterproof performance of the connection position between the bottom shell 11 and the upper cover 12. The notch position of the upper opening part of drain pan 11 is located to upper cover waterproof board 16, and the lower surface of upper cover 12 is equipped with decurrent bellying, and the upper surface of upper cover waterproof board 16 is equipped with the recess of undercut, corresponds and the shape adaptation with the bellying position on upper cover 12, through the snap fit of this bellying and recess between upper cover 12 and the upper cover waterproof board 16, simultaneously through fixture block 14 and draw-in groove 15 snap fit, supports upper cover waterproof board 16 tightly locates between upper cover 12 and the drain pan 11, improves the water-proof effects.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Therefore, all technical solutions which are available to the person skilled in the art based on the prior art through logic analysis, reasoning or limited experiments according to the inventive concept are within the scope of protection defined by the claims.

Claims (10)

1. The motor electronic lock actuator for the direct current charging gun is characterized by comprising a hollow electronic lock shell (1), wherein a motor speed reducer (2) and a micro switch (3) are arranged in an inner cavity of the electronic lock shell (1), the micro switch (3) is arranged below the motor speed reducer (2), a motor output shaft (21) is arranged at the front end of the motor speed reducer (2), and a position feedback mechanism (4) is synchronously connected with the outside of the motor output shaft (21) in a rotating way;

the position feedback mechanism (4) comprises a feedback wheel (41), a connecting shaft (42) and a lock cylinder (43) which are coaxially arranged, the feedback wheel (41) and the connecting shaft (42) are sequentially sleeved outside the motor output shaft (21) from the back to the front, the feedback wheel (41) is located in an inner cavity of the electronic lock shell (1), the connecting shaft (42) is connected with the electronic lock shell (1) in a penetrating mode, the lock cylinder (43) is sleeved at the front end of the connecting shaft (42) and located outside the electronic lock shell (1), and the lock cylinder (43) corresponds to a position of a manual button (100) on an external charging gun.

2. The motor electronic lock actuator for a direct current charging gun according to claim 1, wherein the micro switch (3) is provided with a contact reed (31), and the bottom end of the feedback wheel (41) corresponds to the position of the contact reed (31).

3. The motor electronic lock actuator for a direct current charging gun according to claim 1, wherein the electronic lock housing (1) comprises a hollow bottom shell (11) and an upper cover (12) covering an upper opening of the bottom shell (11), and the bottom shell (11) is in sealing connection with the upper cover (12).

4. A motor electronic lock actuator for a direct current charging gun according to claim 3, characterized in that the front end of the bottom shell (11) is connected with an end cover (13), a connecting shaft (42) penetrates through the front end surface of the bottom shell (11), the front end of the connecting shaft (42) penetrates through the end cover (13), and a containing cavity (131) for rotating the connecting shaft (42) and the lock cylinder (43) is arranged in the end cover (13).

5. The motor electronic lock actuator for a direct current charging gun according to claim 4, wherein a waterproof cover (5) is connected between the bottom shell (11) and the end cover (13) in a sealing manner, and the waterproof cover (5) is sleeved outside the connecting shaft (42) and forms a sealing connection with the connecting shaft.

6. The motor electronic lock actuator for a direct current charging gun according to claim 4, wherein the O-shaped ring (6) is sleeved outside the connecting shaft (42), and the O-shaped ring (6) is positioned between the connecting shaft (42) and the bottom shell (11) to form a sealing connection.

7. The motor electronic lock actuator for a direct current charging gun according to claim 4, wherein an unlocking reset shaft (421) is provided at a front end of the connecting shaft (42), an unlocking hole (132) is provided at a front end of the end cover (13), the unlocking reset shaft (421) is located at a side surface of the unlocking hole (132) and corresponds to the unlocking hole (132), and an external unlocking button (200) can penetrate through the unlocking hole (132) to be abutted against the unlocking reset shaft (421) and drive the unlocking reset shaft (421) to rotate to an unlocking position.

8. A motor electronic lock actuator for a direct current charging gun according to claim 3, wherein, a clamping block (14) is arranged on at least two outer side surfaces of the bottom shell (11), a clamping groove (15) corresponding to the position of the clamping block (14) is arranged on the upper cover (12), and the clamping block (14) is in snap fit with the clamping groove (15).

9. A motor electronic lock actuator for a direct current charging gun according to claim 3, characterized in that an upper cover waterproof plate (16) is provided between the bottom case (11) and the upper cover (12).

10. The motor electronic lock actuator for the direct current charging gun according to claim 1, wherein a threading hole (17) is formed in the rear end of the electronic lock shell (1), the motor speed reducer (2) and the micro switch (3) are both connected with an electronic wire (7), a wire waterproof ring (8) is wrapped outside the electronic wire (7), the wire waterproof ring (8) is arranged in the threading hole (17) to form interference fit with the threading hole, and the electronic wire (7) extends out of the threading hole (17).