CN219548668U - Charging small door self-locking actuator with emergency unlocking function - Google Patents

Abstract

A charging small door self-locking actuator with an emergency unlocking function comprises an actuator shell and a self-locking device; the actuator shell is internally provided with a containing cavity for containing the driving motor, and an output shaft is also arranged on the actuator shell in a penetrating way; the self-locking device comprises a shell, and a driving plate and a driven plate which are positioned in the shell and are in transmission connection; the driven plate is also provided with a locking ball in a penetrating way, the inner wall of the shell is correspondingly provided with a ball groove, the locking ball can be in butt fit in the ball groove, and the driving plate is provided with an avoidance gap; the emergency unlocking structure comprises an unlocking slide button which is slidably arranged on the shell in a penetrating way, and the unlocking slide button is connected with the emergency unlocking mechanism in the automobile body through an emergency pull rope; according to the utility model, even if the driving motor fails and can not be started for unlocking, emergency unlocking can be realized, so that the adaptability of the actuator to various emergency situations is improved.

Description

Charging small door self-locking actuator with emergency unlocking function

Technical Field

The utility model relates to the field of small charging door actuators, in particular to a small charging door self-locking actuator with an emergency unlocking function.

Background

The electric automobile is a vehicle which uses a vehicle-mounted power supply as power and uses a motor to drive wheels to run and meets various requirements of road traffic and safety regulations. The environmental impact is smaller than that of the traditional automobile, and the prospect is widely seen; the charging small door on the electric automobile is equivalent to the refueling small door in the traditional automobile, is an important protection measure for the energy input port of the automobile, is driven to open and close by a motor in an actuator, and is prevented from being manually opened when not driven by the motor, and a self-locking structure is generally added in the actuator of the charging small door to prevent the charging small door from being violently opened.

For example, chinese patent No. ZL 202110143069.X discloses: the locking motion mechanism of the actuator comprises an actuator body and a unidirectional output device, wherein the unidirectional output device comprises a fixed shell, a driving shaft, a driven output shaft and a first driving piece and a second driving piece which are arranged between the driving shaft and the driven output shaft; the driven output shaft is provided with a first linkage groove and a second linkage groove, the first driving piece is fixedly connected with the driving shaft, the first driving piece is inserted into the first linkage groove, and the second driving piece is at least partially positioned in the second linkage groove and forms clearance fit with the second linkage groove; the driving shaft is provided with a driving groove, the fixed shell is provided with a locking groove, the second driving piece is movably arranged in the driving groove, and the second driving piece can be clamped into or separated from the locking groove under the guidance of the driving groove. The utility model not only ensures the power transmission of the driving axial driven output shaft, but also cuts off the power transmission of the driven output axial driving shaft, and can effectively prevent the driving shaft from being driven by external force, thereby ensuring the safety in use.

However, as in the solution described in the above patent, the existing self-locking structure for the small charging door actuator has a problem that when the situation that the motor in the actuator cannot be started or is blocked in the automobile is encountered, the motor cannot drive the small charging door to open, and the small charging door cannot be manually opened due to the existence of the self-locking structure, so that the automobile falls into an embarrassing situation that the small charging door is locked and cannot be opened.

Disclosure of Invention

In order to overcome the defect that an actuator of a small charging door in the prior art cannot open the small charging door by external force when encountering an emergency situation that a motor cannot be started due to the existence of a self-locking structure, the utility model provides the small charging door self-locking actuator with an emergency unlocking function.

The technical scheme for solving the technical problems is as follows: a charge door self-locking actuator with emergency unlocking function, comprising:

the actuator shell is internally provided with a containing cavity for containing the driving motor, the actuator shell is also provided with an output shaft in a penetrating way, one end of the output shaft is positioned in the containing cavity, and the other end of the output shaft is positioned outside the actuator shell and connected with the charging small door;

the self-locking device comprises a shell, a driving plate and a driven plate, wherein the driving plate and the driven plate are positioned in the shell and are in transmission connection, the driving plate and a driving motor positioned in the accommodating cavity are in transmission connection, and the corresponding driven plate is in transmission connection with an output shaft in the accommodating cavity; the driven plate is also provided with a locking ball in a penetrating way, the inner wall of the shell is correspondingly provided with a ball groove, the locking ball can be in butt fit in the ball groove, so that the driven plate is limited to rotate relative to the shell, the driving plate is provided with a avoidance gap, the driving plate can rotate relative to the driven plate under the drive of a driving motor, the avoidance gap is enabled to rotate to correspond to the locking ball, the locking ball can be retracted into the avoidance gap, the fit with the ball groove is released, and the rotation limitation of the driven plate is further released;

the method also comprises the following steps:

the emergency unlocking structure comprises an unlocking slide button which is arranged on the shell in a sliding manner, the unlocking slide button is connected with an emergency unlocking mechanism in the automobile body through an emergency pull rope, the unlocking slide button is in butt fit with the driving plate, the unlocking slide button slides relative to the shell under the action of the emergency pull rope and can drive the driving plate to rotate relative to the driven plate, so that the locking balls can retract into the avoidance notch, and the restriction on the rotation of the driven plate is relieved.

In the use, under the condition that driving motor and urgent unblock structure all do not start, even pulling charge the tambour, owing to locking ball butt cooperation is in the ball inslot, restricted the rotation of driven plate, consequently driven shaft and output shaft also can't take place to rotate to ensure that charge the tambour can't be opened.

The structure of installing the unblock slide button on the shell is further, link up on the shell and seted up a smooth Niu Cao, the bottom of unblock slide button passes the slide button groove and stretches into to the inside of shell, the top of unblock slide button is located the outside of shell and can follow slide Niu Cao slides, the bottom of unblock slide button still protruding has a guide bar, and a guide slot has then been seted up on the inner wall of shell correspondingly, the guide bar slidable is pegged graft in the guide slot.

The unlocking slide block is matched with the driving plate in a further mode, an abutting protrusion is arranged on the periphery side of the driving plate, an abutting protruding hook is arranged at the bottom of the unlocking slide button towards the driving plate in a protruding mode, and the unlocking slide button is in abutting fit with the abutting protruding hook through the abutting protrusion, so that transmission connection between the unlocking slide button and the driving block is achieved.

The shell is further to the guide structure of urgent stay cord, still be provided with the guide holder on the shell, urgent stay cord pass the guide holder, and be located still protruding two spacing muscle and a spacing post that are equipped with on the guide holder, two spacing muscle are located respectively the front and back both sides of urgent stay cord to realize to urgent stay cord is horizontal spacing, and the lower lateral wall of guide holder and spacing post are then located respectively the upper and lower both sides of urgent stay cord, thereby realize to urgent stay cord is fore-and-aft spacing.

The driving plate is further provided with a section of locking rib towards the bulge of the driven plate in a matching mode of the driving plate and the locking balls, the locking rib is abutted to the rear side of the locking balls, so that the locking balls are in abutting matching with the ball grooves, and the avoidance notch is formed in the center of the locking rib.

The driving plate and the driven plate are further provided with a linkage rod in a protruding mode, the linkage rod is arranged on the driving plate in a protruding mode towards the driven plate, a linkage groove which is in plug-in fit with the linkage rod is formed in the corresponding driven plate, and the driven plate can be driven to rotate along with the linkage rod when the driving plate rotates.

The linkage rod and the linkage groove are matched in a further mode, and the linkage rod can slide along the linkage groove; when the linkage rod is in the sliding stroke relative to the linkage groove, the driving plate independently rotates relative to the driven plate; and when the linkage rod is in butt fit on the groove wall of the linkage groove after sliding, the driving plate drives the driven plate to rotate along with the linkage rod.

The structure of drive plate and driven plate is further, towards the holding intracavity protruding drive shaft that is equipped with on the drive plate, but on the driven plate then towards the holding intracavity protruding be equipped with a driven shaft, still link up on the drive plate and seted up a switching passageway, the driven shaft rotatable wears to establish in the switching passageway, thereby realize the rotation of drive plate and driven plate is connected.

The transmission structure between the driven shaft and the output shaft piece is further characterized in that an input gear is fixedly sleeved on the driven shaft, an output gear is fixedly sleeved on the output shaft, and the input gear and the output gear are in transmission connection through a transmission gear between the input gear and the output gear.

The normal unlocking and emergency unlocking modes of the utility model:

normal unlocking: the driving motor in the actuator shell drives the driving shaft to rotate, the driving plate rotates relative to the driven plate, the locking balls roll down from the locking ribs to fall into the avoidance notch after relative rotation, the restriction of the locking balls on the rotation of the driven plate is relieved, meanwhile, the linkage rod is propped against the groove wall of the linkage groove after sliding in the linkage groove, at the moment, the driving plate continues to rotate, the driven plate can be driven to rotate through the combined action of the linkage rod and the locking balls, and the driven plate can drive the output shaft to rotate through the transmission between the driven shaft and the output shaft, so that the charging small door is opened;

emergency unlocking: the emergency unlocking mechanism in the automobile body pulls the emergency stay cord, so that the emergency stay cord drives the unlocking slide button to slide along the slide button groove, the unlocking slide button pushes the driving plate to rotate relative to the driven plate, the same effect as that of normal unlocking can be achieved, the locking balls fall into the avoidance notch to release the restriction on the driven plate, and then the charging small door is manually pulled to be opened.

The utility model has the beneficial effects that:

1. the emergency unlocking structure is added on the self-locking device, and the driving plate can be pushed to rotate for unlocking by means of the arrangement of the emergency pull rope and the unlocking slide button, so that emergency unlocking can be realized even if the driving motor fails and unlocking can not be started, and the adaptability of the actuator to various emergency situations is improved;

2. the locking ball plays a limiting role on the rotation of the driven plate when the driven plate is not unlocked, and the locking ball can act on the driven plate together with the linkage rod after unlocking to enable the driven plate to rotate along with the driving plate, so that the transmission between the driving plate and the driven plate is quicker and more accurate.

3. The shell of the self-locking device is further provided with the guide seat to guide the emergency pull rope, so that the accuracy of the pulling direction of the emergency pull rope in the use process is ensured, and the unlocking slide button can accurately respond to realize emergency unlocking.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded view of the present utility model.

Fig. 3 is an exploded schematic view of the self-locking device of the present utility model.

Fig. 4 is a cross-sectional view of the self-locking device of the present utility model.

Fig. 5 is a schematic diagram of the internal structure of the self-locking device of the present utility model.

Fig. 6 is a schematic structural view of the upper case of the present utility model.

Fig. 7 is a schematic diagram of the transmission structure of the driven shaft and the output shaft of the present utility model.

Fig. 8 is a schematic structural view of the driving plate of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding and are not used to define any directional or sequential limitation.

Examples

The charging small door self-locking actuator with the emergency unlocking function is shown in combination with fig. 1 to 8, and comprises an actuator shell 1 and a self-locking device 3; the actuator shell 1 is internally provided with a containing cavity for containing a driving motor, the actuator shell 1 is also provided with an output shaft 2 in a penetrating way, one end of the output shaft 2 is positioned in the containing cavity, and the other end of the output shaft is positioned outside the actuator shell 1 and connected with a small charging door; the self-locking device 3 comprises a shell 4, a driving plate 5 and a driven plate 6 which are positioned in the shell 4 and are in transmission connection, the driving plate 5 and a driving motor positioned in the accommodating cavity are in transmission connection, and the corresponding driven plate 6 is in transmission connection with the output shaft 2 in the accommodating cavity; the driven plate 6 is also provided with a locking ball 7 in a penetrating way, the inner wall of the shell 4 is correspondingly provided with a ball groove 8, the locking ball 7 can be in abutting fit in the ball groove 8, so that the driven plate 6 is limited to rotate relative to the shell, the driving plate 5 is provided with a avoiding notch 9, the driving plate 5 can rotate relative to the driven plate 6 under the driving of a driving motor, the avoiding notch 9 is enabled to rotate to correspond to the locking ball 7, so that the locking ball 7 can be retracted into the avoiding notch 9 to release the fit with the ball groove 8, and further the limitation on the rotation of the driven plate 6 is released; the emergency unlocking structure comprises an unlocking slide button 10 which is arranged on the shell 4 in a sliding manner, the unlocking slide button 10 is connected with an emergency unlocking mechanism in an automobile body through an emergency pull rope 11, the unlocking slide button 10 is in butt fit with the driving plate 5, the unlocking slide button 10 slides relative to the shell 4 under the action of the emergency pull rope 11 and can drive the driving plate 5 to rotate relative to the driven plate 6, so that the locking balls 7 can retract into the avoidance notches 9, and the limitation on the rotation of the driven plate 6 is relieved.

In the use process of the embodiment, under the condition that the driving motor and the emergency unlocking structure are not started, even if the charging small door is pulled, the locking balls 7 are in abutting fit in the ball grooves 8, so that the rotation of the driven plate 6 is limited, the driven shaft 24 and the output shaft 2 cannot rotate, and the charging small door cannot be opened.

In this embodiment, a slide Niu Cao is provided on the housing 4, the bottom of the unlocking slide button 10 extends into the housing 4 through the slide button slot 12, the top of the unlocking slide button 10 is located outside the housing 4 and can slide along the slide button slot 12, a guide rib 13 is further provided on the bottom of the unlocking slide button 10, a guide slot 14 is provided on the inner wall of the housing 4, and the guide rib 13 is slidably inserted into the guide slot 14.

In this embodiment, an abutment protrusion 15 is disposed on the peripheral side of the driving plate 5, and an abutment protrusion 16 is disposed at the bottom of the unlocking slide button 10 toward the driving plate 5, so that the transmission connection between the unlocking slide button 10 and the driving block is realized by the abutment engagement of the abutment protrusion 15 and the abutment protrusion 16.

In this embodiment, the housing 4 is further provided with a guide seat 17, the emergency pull rope 11 passes through the guide seat 17, two limit ribs 18 and a limit post 19 are further provided on the guide seat 17 in a protruding manner, the two limit ribs 18 are respectively located at front and rear sides of the emergency pull rope 11, so as to achieve the transverse limit of the emergency pull rope 11, and the lower side wall of the guide seat 17 and the limit post 19 are respectively located at the upper and lower sides of the emergency pull rope 11, so as to achieve the longitudinal limit of the emergency pull rope 11.

In this embodiment, a section of locking rib 20 is provided on the driving plate 5 toward the driven plate 6, the locking rib 20 is abutted against the rear side of the locking ball 7, so that an abutting fit is formed between the locking ball 7 and the ball groove 8, and the avoidance gap 9 is formed at the center of the locking rib 20.

In this embodiment, the driving plate 5 is further provided with a linkage rod 21 protruding toward the driven plate 6, and the corresponding driven plate 6 is provided with a linkage groove 22 capable of forming a plug-in fit with the linkage rod 21, so that the driven plate 6 can be driven to rotate along with the linkage rod 21 when the driving plate 5 rotates.

In this embodiment, the link lever 21 is slidable along the link groove 22; when the driving plate 5 is in the sliding stroke of the linkage rod 21 relative to the linkage groove 22, the driving plate 5 is independently rotated relative to the driven plate 6; when the linkage rod 21 is in contact fit with the wall of the linkage groove 22 after sliding, the driving plate 5 drives the driven plate 6 to rotate.

In this embodiment, a driving shaft 23 is protruding toward the accommodating cavity on the driving plate 5, a driven shaft 24 is protruding toward the accommodating cavity on the driven plate 6, a transfer passage 25 is further provided on the driving plate 5, and the driven shaft 24 is rotatably inserted into the transfer passage 25, so as to realize rotational connection between the driving plate 5 and the driven plate 6.

In this embodiment, an input gear 26 is fixedly sleeved on the driven shaft 24, an output gear 27 is fixedly sleeved on the output shaft 2, and the input gear 26 and the output gear 27 are in transmission connection through a transmission gear 28 therebetween.

In this embodiment, the housing 4 is formed by assembling an upper shell 41 and a lower shell 42, the ball groove 8 and the slide button groove 12 are both formed on the upper shell 41, the guide seat 17 is disposed on one side of the upper shell 41, the guide seat 17 and the upper shell 41 are connected by sintering, and the guide groove 14 is formed on the lower shell 42.

Normal unlocking and emergency unlocking modes of the embodiment:

normal unlocking: the driving motor in the actuator shell 1 drives the driving shaft 23 to rotate, the driving plate 5 rotates relative to the driven plate 6, the locking balls 7 roll down from the locking ribs 20 to fall into the avoidance notches 9 after relative rotation, the limiting effect of the locking balls 7 on the rotation of the driven plate 6 is relieved, meanwhile, the linkage rod 21 slides in the linkage groove 22 and then abuts against the groove wall of the linkage groove 22, at the moment, the driving plate 5 continues to rotate, the driven plate 6 can be driven to rotate along with the rotation through the combined action of the linkage rod 21 and the locking balls 7, and the driven plate 6 can drive the output shaft 2 to rotate through the transmission between the driven shaft 24 and the output shaft 2, so that the charging small door is opened;

emergency unlocking: the emergency unlocking mechanism in the automobile body pulls the emergency pull rope 11, so that the emergency pull rope 11 drives the unlocking slide button 10 to slide along the slide button groove 12, the unlocking slide button 10 pushes the driving plate 5 to rotate relative to the driven plate 6, the same effect as that in normal unlocking can be achieved, the locking balls 7 fall into the avoidance notch 9 to release the limit on the driven plate 6, and then the charging small door is manually pulled to be opened.

The advantages of this embodiment are: be provided with urgent unblock structure, when the unable start-up of driving motor in the executor, also can realize the unblock of auto-lock ware through urgent unblock structure to open the little door that charges, make this executor obtain very big promotion to the adaptability of various emergency.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims (9)

1. A charge door self-locking actuator with emergency unlocking function, comprising:

the device comprises an actuator shell (1), wherein a containing cavity for containing a driving motor is formed in the actuator shell (1), an output shaft (2) is further arranged on the actuator shell (1) in a penetrating mode, one end of the output shaft (2) is located in the containing cavity, and the other end of the output shaft is located outside the actuator shell (1) and connected with a charging small door;

the self-locking device (3) comprises a shell (4), and a driving plate (5) and a driven plate (6) which are positioned in the shell (4) and in transmission connection, wherein the driving plate (5) is in transmission connection with a driving motor positioned in the accommodating cavity, and the corresponding driven plate (6) is in transmission connection with an output shaft (2) in the accommodating cavity; the driven plate (6) is further provided with a locking ball (7) in a penetrating way, the inner wall of the shell (4) is correspondingly provided with a ball groove (8), the locking ball (7) can be in abutting fit in the ball groove (8), so that the driven plate (6) is limited to rotate relative to the shell, the driving plate (5) is provided with a avoiding notch (9), the driving plate (5) can rotate relative to the driven plate (6) under the driving of a driving motor, the avoiding notch (9) rotates to correspond to the locking ball (7), and the locking ball (7) can be retracted into the avoiding notch (9) to release the fit with the ball groove (8), so that the rotation limitation of the driven plate (6) is released;

it is characterized in that the method also comprises the following steps:

the emergency unlocking structure comprises an unlocking slide button (10) which is arranged on the shell (4) in a sliding manner, the unlocking slide button (10) is connected with an emergency unlocking mechanism in an automobile body through an emergency pull rope (11), the unlocking slide button (10) is in butt fit with the driving plate (5), the unlocking slide button (10) slides relative to the shell (4) under the action of the emergency pull rope (11), and the driving plate (5) can be driven to rotate relative to the driven plate (6) so that the locking balls (7) can retract into the avoidance gaps (9), and the restriction on rotation of the driven plate (6) is relieved.

2. The charge door self-locking actuator with emergency unlocking function according to claim 1, wherein: the novel unlocking slide button is characterized in that a slide Niu Cao (12) is arranged on the shell (4) in a penetrating mode, the bottom of the unlocking slide button (10) penetrates through the slide button groove (12) to extend into the shell (4), the top of the unlocking slide button (10) is located outside the shell (4) and can slide along the slide Niu Cao (12), a guide rib (13) is further arranged at the bottom of the unlocking slide button (10) in a protruding mode, a guide groove (14) is correspondingly formed in the inner wall of the shell (4), and the guide rib (13) can be inserted into the guide groove (14) in a sliding mode.

3. The charge door self-locking actuator with emergency unlocking function according to claim 2, wherein: the driving plate (5) is provided with an abutting protrusion (15) on the periphery side, the bottom of the unlocking slide button (10) is provided with an abutting protruding hook (16) towards the driving plate (5), and the unlocking slide button (10) is in transmission connection with the driving block through abutting matching of the abutting protrusion (15) and the abutting protruding hook (16).

4. The charge door self-locking actuator with emergency unlocking function according to claim 1, wherein: the emergency stay cord (11) passes through the guide seat (17), two limit ribs (18) and one limit column (19) are further arranged on the guide seat (17) in a protruding mode, the two limit ribs (18) are respectively arranged on the front side and the rear side of the emergency stay cord (11), so that the emergency stay cord (11) is transversely limited, and the lower side wall of the guide seat (17) and the limit column (19) are respectively arranged on the upper side and the lower side of the emergency stay cord (11), so that the emergency stay cord (11) is longitudinally limited.

5. The charge door self-locking actuator with emergency unlocking function according to claim 1, wherein: the driving plate (5) is provided with a section of locking rib (20) towards the driven plate (6) in a bulge mode, the locking rib (20) is abutted to the rear side of the locking ball (7), so that the locking ball (7) and the ball groove (8) form abutting fit, and the avoidance notch (9) is formed in the center of the locking rib (20).

6. The charge door self-locking actuator with emergency unlocking function according to claim 1, wherein: the driving plate (5) is also provided with a linkage rod (21) towards the driven plate (6) in a protruding way, the corresponding driven plate (6) is provided with a linkage groove (22) which can form an inserting fit with the linkage rod (21), and the driven plate (6) can be driven to rotate along with the linkage rod (21) when the driving plate (5) rotates.

7. The charge door self-locking actuator with emergency unlocking function according to claim 6, wherein: the linkage rod (21) can slide along the linkage groove (22); when the linkage rod (21) slides relative to the linkage groove (22), the driving plate (5) independently rotates relative to the driven plate (6); when the linkage rod (21) is in butt fit on the groove wall of the linkage groove (22) after sliding, the driving plate (5) drives the driven plate (6) to rotate along with the linkage rod.

8. The charge door self-locking actuator with emergency unlocking function according to claim 1, wherein: the driving plate (5) is provided with a driving shaft (23) towards the accommodating cavity in a protruding manner, the driven plate (6) is provided with a driven shaft (24) towards the accommodating cavity in a protruding manner, the driving plate (5) is further provided with a through passage (25) in a penetrating manner, and the driven shaft (24) is rotatably arranged in the through passage (25) in a penetrating manner, so that the driving plate (5) is rotationally connected with the driven plate (6).

9. The charge door self-locking actuator with emergency unlocking function according to claim 8, wherein: an input gear (26) is fixedly sleeved on the driven shaft (24), an output gear (27) is fixedly sleeved on the output shaft (2), and the input gear (26) and the output gear (27) are in transmission connection through a transmission gear (28) between the input gear and the output gear.