CN219412242U - Linear push-out driving device for door handle - Google Patents

Abstract

The utility model belongs to the technical field of automobile door handle accessories, and provides a linear push-out driving device of a door handle, which comprises: the device comprises a shell, an input worm, a helical worm and a push-out element, wherein a driving piece is arranged in the shell, the driving piece is provided with a driving shaft, the input worm is arranged at one end of the driving shaft, a fixing frame is arranged in the shell, one end of the driving shaft provided with the input worm is inserted into the fixing frame, the helical worm is rotatably arranged on the fixing frame and provided with a first helical end and a worm rod end, the first helical end is connected with the input worm, and the worm end is connected with the push-out element; the circumference of the fixing frame is provided with a noise reduction element. Compared with the prior art, the utility model has the advantages that the fixing frame is added in the driving device, so that the structural errors and assembly errors are concentrated on the fixing frame, and the fit tolerance and the structural tolerance of the transmission mechanism arranged between the upper cover and the lower cover of the shell are reduced, thereby reducing the noise generated by larger errors among the transmission of all parts.

Description

Linear push-out driving device for door handle

Technical Field

The utility model belongs to the technical field of automobile door handle accessories, and particularly relates to a linear push-out driving device of a door handle.

Background

With the continuous development of new energy automobiles, the automobiles are gradually changed from the traditional manual mechanization to the electric and intelligent directions.

The automobile door handle is an important component of an automobile door system, more and more automobiles begin to adopt hidden automobile door handles, some conventional mechanical operations are also developed towards the direction of electric operation, the application of driving devices is also more and more widely driven by the rapid development of electric operation, and because in the driving process of the driving devices in the market, the driving devices can generate higher noise due to the matching of a transmission mechanism, the influence on the whole use of the automobiles is felt, the sealing effect of the driving devices is poor, the risk of water seepage is easy to occur, and parts are easy to damage.

Disclosure of Invention

The utility model aims to solve the technical problem of the prior art, and provides a linear push-out driving device with better silencing and sealing effects for an automobile door handle.

The technical scheme adopted for solving the technical problems is as follows: provided is a linear push-out driving device for a door handle, comprising: the device comprises a shell, an input worm, a helical worm and a push-out element, wherein a driving piece is arranged in the shell, the driving piece is provided with a driving shaft, the input worm is arranged at one end of the driving shaft,

the shell is internally provided with a fixing frame, one end of the driving shaft provided with the input worm is inserted with the fixing frame, the helical worm is rotatably arranged on the fixing frame and is provided with a first helical end and a worm end, the first helical end is connected with the input worm, and the worm end is connected with the pushing element;

the periphery of the fixing frame is provided with a noise reduction element, and the noise reduction element is abutted against the shell;

the shell is provided with a push-out port, a sealing groove is formed in the push-out port, a sealing ring is sleeved on the push-out element, the sealing ring is positioned in the sealing groove, and a waterproof sleeve is sleeved on the outer side of the push-out port.

In the linear push-out driving device of the door handle, the push-out element is a helical screw, a second helical end is formed on the helical screw, and the second helical end is located in the fixing frame and meshed with the worm end.

In the linear push-out driving device of the door handle, the fixing frame is provided with the threaded hole, the helical screw rod is provided with the first threaded end, and the first threaded end is in threaded connection with the threaded hole.

In the linear push-out driving device of the door handle, the push-out element is set to be a screw rod and a helical gear nut, the screw rod and the helical gear nut are both arranged on the fixing frame, a third helical gear end is arranged on the outer wall of the helical gear nut and meshed with the worm end, an inner screw hole is formed in the helical gear nut, and a second thread end is arranged on the screw rod and is in threaded connection with the inner screw hole.

In the linear push-out driving device of the door handle, the end part of the screw rod, which is far away from the helical gear nut, is provided with a limiting part, the fixing frame is provided with a first limiting groove and a second limiting groove, the helical gear nut is rotatably arranged on the first limiting groove, the limiting part is positioned on the second limiting groove, and the limiting part can move along the axis direction of the screw rod to be movably abutted against the groove walls at the two ends of the second limiting groove.

In the linear push-out driving device of the door handle, the shell is provided with the storage groove, the driving piece is arranged in the storage groove, the other end, far away from the input worm, of the driving shaft of the driving piece is provided with the Hall element, the storage groove is provided with the Hall sensor, and the Hall sensor is positioned below the Hall element.

In the linear push-out driving device of the door handle, the noise reduction element is made of soft rubber, one end face of the soft rubber is attached to the outer wall of the fixing frame, and the other end face of the soft rubber is attached to the shell.

In the linear push-out driving device for a door handle, the housing is provided with a PIN angle connector, and the PIN angle connector is connected with an externally provided opponent.

Compared with the prior art, the utility model has the following beneficial effects:

1. the fixing frame is added in the driving device, so that structural errors and assembly errors are concentrated on the fixing frame, and the fit tolerance and the structural tolerance of the transmission mechanism between the upper cover and the lower cover of the shell are reduced, thereby reducing noise generated by larger errors between transmission of all parts;

2. soft rubber is locally arranged on the periphery of the mechanism fixing frame to enable the mechanism fixing frame to be in contact fit with the upper cover and the lower cover of the shell, so that vibration is reduced, noise can be further reduced, and the overall use feeling of the automobile is improved;

3. the push-out port of the shell is provided with the sealing ring and the waterproof sleeve, a double-sealing ring structure is adopted, the risk of moisture infiltration into the actuator can be effectively reduced through a secondary sealing effect, the corrosion of metal parts in the driving device is prevented, and the service life of the driving device is prolonged.

Drawings

Fig. 1 is a schematic structural view of a linear push-out driving device of a door handle in the first embodiment;

fig. 2 is an exploded view of a linear push-out driving device of a door handle in the first embodiment;

FIG. 3 is a schematic view showing the internal structure of the housing in the first embodiment;

FIG. 4 is a schematic diagram of a transmission mechanism in the first embodiment;

fig. 5 is a schematic structural view of a linear push-out driving device of a door handle in the second embodiment;

fig. 6 is an exploded view of a linear push-out driving device of a door handle in the second embodiment;

fig. 7 is a schematic view of the internal structure of the housing in the second embodiment;

fig. 8 is a schematic structural view of a transmission mechanism in the second embodiment;

fig. 9 is a structural cross-sectional view of the push-out port.

In the drawing the view of the figure,

1. a housing; 100. a fixing frame; 101. a noise reduction element; 102. a threaded hole; 103. a first limit groove; 104. the second limit groove; 105. a storage groove; 106. a Hall element; 107. a hall sensor; 108. a push-out port; 109. sealing grooves; 110. a seal ring; 111. a waterproof jacket; 112. PIN angle connector plug; 113. a positioning groove; 114. an upper cover; 115. a lower cover; 116. limiting material grooves; 117. a groove; 118. a gasket; 119. a metal pin;

2. inputting a worm;

3. a helical worm; 300. a first helical end; 301. a worm end;

4. a push-out member; 400. helical tooth screw rod; 401. a second helical end; 402. a screw rod; 403. a helical tooth nut; 404. a third beveled tooth end; 405. an inner screw hole; 406. a limit part; 407. a first threaded end; 408. a second threaded end;

5. a driving member.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Example 1

As shown in fig. 1 to 4, a linear push-out driving device of a door handle includes: a housing 1, an input worm 2, a helical worm 3 and a push-out element 4.

Specifically, install driver 5 in the casing 1, driver 5 is the micromotor in this application, be provided with constant head tank 113 in casing 1, mount 100 installs on constant head tank 113, mount 100 the noise reduction element 101 of mount 100 border is supported with casing 1 and is leaned on, mount 100 is inserted to the one end of the output shaft (drive shaft) of micromotor, and be provided with recess 117 on casing 1 next to mount 100, put the gasket 118 in recess 117, set up the gasket 118 and can prevent output shaft axial float, input worm 2 installs on this end of output shaft and is in mount 100, input worm 2 and output shaft interference fit, thereby be provided with the metal round pin 119 with interference fit in the skewed tooth worm 3 when rotating, metal round pin 119 is connected with mount 100 rotation, thereby skewed tooth worm 3 rotatable mounting is on mount 100, skewed tooth worm 3 is located the below of input worm 2, first skewed tooth end 300 and input worm 2 on one end, release element 4 is installed on casing 1, and release element 301 and release 4 worm element are engaged.

The noise reduction element 101 is set to be soft rubber in the application, but is not limited to soft rubber, and can be made of other noise reduction materials, and it is to be noted that the fixing frame 100 is installed in the upper cover 114 and the lower cover 115, and the fixing frame 100 is set, so that structural errors and assembly errors can be concentrated on the fixing frame 100, and direct fit tolerances and structural tolerances of the transmission mechanism directly installed on the upper cover 114 and the lower cover 115 are reduced, so that noise generated by direct transmission of each part due to larger errors is reduced, and soft rubber is locally arranged on the periphery of the fixing frame 100, so that the soft rubber is in contact fit with the upper cover 114 and the lower cover 115, and the noise can be reduced while vibration is reduced.

As shown in fig. 3, 4 and 9, the casing 1 is provided with a push-out port 108, the push-out element 4 can extend out of the push-out port 108 or retract back into the push-out port 108, because a gap exists between the push-out element 4 and the push-out port 108, external water is likely to infiltrate into the casing 1 through the gap, in order to improve the sealing and waterproof effects of the driving device, the casing 1 is provided with a sealing groove 109, the cylindrical surface of the push-out element 4 (helical screw 400) is sleeved with a sealing ring 110, and the sealing ring 110 is located at the sealing groove 109, thereby improving the overall sealing effect.

Further, as shown in fig. 3, the push-out port 108 of the casing 1 may be sleeved with a water-proof sleeve 111, so that the risk of water penetrating into the actuator can be effectively reduced, corrosion of metal parts in the driving device is prevented, and the service life of the driving device is prolonged.

Specifically, as shown in fig. 2 to 4, the push-out member 4 is provided as a helical screw 400, the helical screw 400 is provided on the mount 100 above the helical worm 3, a second helical end 401 is formed on the helical screw 400, and the second helical end 401 is engaged with the worm end 301 of the helical worm 3, so that the helical screw 400 can move on the housing 1 in the axial direction thereof when the helical worm 3 rotates.

Further, as shown in fig. 4, in order to enable the helical screw 400 to move in the axial direction more stably, the fixing frame 100 is provided with a threaded hole 102, a first threaded end 407 of the helical screw 400 is in threaded connection with the threaded hole 102, so as to promote the stability of the whole transmission mechanism, it is worth mentioning that the fixing frame 100 and the housing 1 are formed with a limiting groove 116, a second helical end 401 can move on the limiting groove 116 along the axial direction of the helical screw 400, and is movably abutted against two side walls of the limiting groove 116, and the width of the limiting groove 116 is set according to the limit meshing position of the second helical end 401 and the worm end 301 of the helical worm 3.

Specifically, as shown in fig. 3, a storage slot 105 is disposed on the housing 1, the driving element 5 is clamped in the storage slot 105, in order to control the movement value of the push-out element 4, a hall sensor 107 is further disposed on the storage slot 105, so as to prevent the driving element 5 from shaking during operation, promote overall fit tolerance and structural tolerance, and install a hall element 106 on the other end of the output shaft (driving shaft) of the micro-motor, where the hall element 106 is above the hall sensor 107, it is worth mentioning that a circuit board (not shown in the figure) is disposed in the housing 1, and the circuit board is connected with the driving element 5.

Specifically, as shown in fig. 1, a PIN angle connector 112 is provided on the housing 1, and the PIN angle connector 112 is connected to an external counterpart, thereby realizing an energizing signal.

It should be noted that, the casing 1 is divided into an upper cover 114 and a lower cover 115, after the assembly of the parts such as the transmission structure in the casing 1 is completed, the upper cover 114 and the lower cover 115 are welded together, so that the overall tightness of the driving device is improved, the water seepage phenomenon is prevented from occurring, the parts in the casing 1 are damaged, and the groove bodies such as the positioning groove 113, the storage groove 105, the sealing groove 109, the groove 117 and the like on the casing 1 are all formed by enclosing part of the groove body of the upper cover 114 and part of the groove body of the lower cover 115.

The working principle of the driving device is as follows: the PIN angle joint plug 112 of the lower cover 115 is installed with the hand piece joint plug and is communicated with the BCM or the door panel controller of the whole vehicle, the whole vehicle sends out an electric signal instruction, the driving piece 5 (micro motor) starts to work, the output shaft of the micro motor starts to rotate, thereby driving the input worm 2 to start to rotate, the input worm 2 is meshed with the first helical gear end 300 to rotate, the helical gear worm 3 is driven to rotate through the worm gear structure principle, the worm rod end 301 is meshed with the second helical gear end 401 to rotate, the helical gear worm 3 drives the helical gear screw 400 to rotate, and the helical gear screw 400 extends in a spiral straight line. Meanwhile, the Hall sensor 107 on the output shaft of the micro motor can record the rotation number of the helical screw rod 400, when the helical screw rod rotates for a certain step number, the Hall sensor 107 receives a signal and feeds back the signal to the whole vehicle, the whole vehicle gives out the signal, and the micro motor stops moving. Conversely, the motor is reversed and the telescopic rod is retracted.

Example two

As shown in fig. 5 to 8, in this embodiment, the push-out element 4 is set as a screw rod 402 and a helical nut 403, the screw rod 402 and the helical nut 403 are both disposed in the fixing frame 100, the left and right ends of the helical nut 403 have cylindrical connecting portions, the left and right sides of the first limiting groove 103 have connecting holes adapted to the cylindrical connecting portions, so that the helical nut 403 is rotatably disposed on the first limiting groove 103, the limiting portion 406 is disposed on the second limiting groove 104, and the limiting portion 406 can move along the axial direction of the screw rod 402 to movably abut against the two end groove walls of the second limiting groove 104, and further, the cylindrical surface of the push-out element 4 (screw rod 402) is sleeved with the sealing ring 110.

As shown in fig. 7 and 8, a third helical tooth end 404 is disposed on the outer wall of the helical tooth nut 403, the third helical tooth end 404 is meshed with the worm end 301, an inner screw hole 405 is disposed in the helical tooth nut 403, a second threaded end 408 is disposed on the screw rod 402, and the second threaded end 408 is in threaded connection with the inner screw hole 405.

The working principle of the driving device is as follows: the PIN angle joint plug 112 of the lower cover 115 is installed with the hand piece joint plug and is communicated with the BCM or the door panel controller of the whole vehicle, the whole vehicle sends out an electric signal instruction, the micro motor (the driving piece 5) starts to work, the output shaft of the micro motor starts to rotate and drives the input worm 2 to start rotating, the input worm 2 is meshed with the first helical gear end 300 to rotate through the worm gear structure principle, the input worm 2 drives the helical gear worm 3 to rotate, the worm rod end 301 drives the third helical gear end 404 to rotate, the helical gear worm 3 drives the helical gear nut 403 to rotate, and the helical gear nut 403 rotates to drive the screw 402 to stretch out to do linear motion through the screw nut principle. Meanwhile, the Hall sensor 107 on the output shaft of the micro motor can record the rotation number of the screw rod 402, after a certain step number is rotated, the Hall sensor 107 receives a signal and feeds back the signal to the whole vehicle, the whole vehicle gives out the signal, and the micro motor stops moving. Conversely, the motor is reversed and the telescopic rod is retracted.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims (8)

1. A linear push-out driving device of a door handle, comprising: the device comprises a shell, an input worm, a helical worm and a push-out element, wherein a driving piece is arranged in the shell, the driving piece is provided with a driving shaft, the input worm is arranged at one end of the driving shaft,

the shell is internally provided with a fixing frame, one end of the driving shaft provided with the input worm is inserted with the fixing frame, the helical worm is rotatably arranged on the fixing frame and is provided with a first helical end and a worm end, the first helical end is connected with the input worm, and the worm end is connected with the pushing element;

the periphery of the fixing frame is provided with a noise reduction element, and the noise reduction element is abutted against the shell;

the shell is provided with a push-out port, a sealing groove is formed in the push-out port, a sealing ring is sleeved on the push-out element, the sealing ring is positioned in the sealing groove, and a waterproof sleeve is sleeved on the outer side of the push-out port.

2. The linear push-out driving device of a door handle according to claim 1, wherein the push-out member is provided as a helical screw having a second helical end formed thereon, the second helical end being located in the holder and engaged with the worm end.

3. The linear push-out driving device of a door handle according to claim 2, wherein the fixing frame is provided with a threaded hole, the helical screw has a first threaded end, and the first threaded end is in threaded connection with the threaded hole.

4. The linear push-out driving device of a door handle according to claim 1, wherein the push-out element is a screw rod and a helical nut, the screw rod and the helical nut are both arranged on the fixing frame, a third helical end is arranged on the outer wall of the helical nut, the third helical end is meshed with the worm end, an inner screw hole is formed in the helical nut, and a second threaded end is arranged on the screw rod and is in threaded connection with the inner screw hole.

5. The linear push-out driving device for the door handle according to claim 4, wherein a limiting portion is formed at the end portion of the screw rod, far away from the helical gear nut, a first limiting groove and a second limiting groove are formed in the fixing frame, the helical gear nut is rotatably arranged on the first limiting groove, the limiting portion is located on the second limiting groove, and the limiting portion can move along the axis direction of the screw rod to movably abut against the groove walls at two ends of the second limiting groove.

6. The linear push-out driving device for a door handle according to claim 1, wherein the housing is provided with a storage groove, the driving member is disposed in the storage groove, a hall element is mounted on the other end of the driving shaft of the driving member, which is far away from the input worm, the storage groove is provided with a hall sensor, and the hall sensor is located below the hall element.

7. The linear push-out driving device of a door handle according to claim 1, wherein the noise reduction element is made of soft rubber, one end face of the soft rubber is abutted against the outer wall of the fixing frame, and the other end face of the soft rubber is abutted against the housing.

8. The linear push-out driving device for a door handle according to claim 1, wherein a PIN angle connector is provided on the housing, and the PIN angle connector is connected to an externally provided counterpart.