Hidden door handle actuator

Abstract

The utility model discloses a hidden door handle actuator which comprises a push rod, a rotation driving piece and a transmission mechanism. The transmission mechanism comprises a positioning shaft, a first straight gear, a second straight gear and a third straight gear; the first straight gear is fixedly arranged on the output shaft of the rotary driving part in a sleeving manner; the second straight gear is rotationally arranged on the output shaft of the rotary driving part in a sleeving manner; the third straight gear is rotationally arranged on the positioning shaft in a sleeving manner; the actuator has the advantages that the spur gears replace worm and gear transmission, transmission efficiency can be improved, the spur gears are meshed, the abrasion rate is smaller, the service life of the actuator can be prolonged, in addition, the first spur gear and the second spur gear are assembled on the output shaft of the rotation driving part at the same time, and the service life of the actuator is prolonged. The third straight gear and the fourth straight gear are assembled on the positioning shaft at the same time, when the number of gears in the actuator is large, the number of steel shafts can be reduced, and the space occupied by the transmission mechanism is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of actuators, in particular to a hidden door handle actuator. Background Art

[0002] The actuator is an electrical component that can extend the door handle. When assembled and used, the hidden door handle can be slowly popped out from the inside of the car body, making the appearance of the car body more technological. The existing door handle actuators (such as a hidden door handle actuator disclosed in application number 202011217667.9) generally have a worm and worm gear structure as the transmission method. The transmission efficiency of the worm gear is relatively low (generally 20%-25%), and it is not as efficient as the spur gear transmission (generally >85%). Under the same input torque, the output efficiency of the spur gear is higher, and the output torque will naturally be greater. The worm wheel will cause greater wear on the worm tooth profile, which can easily reduce the service life of the actuator. In addition, since the worm and worm wheel are fixedly mounted on different steel shafts respectively, when the product structure has more gears, more steel shafts are used, and the internal space of the product will be larger. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and to propose a hidden door handle actuator to solve the technical problems in the prior art that the transmission efficiency of the worm and worm gear structure is low and when the product structure has more gears, it occupies a large internal space of the product.

[0004] In order to achieve the above technical objectives, the technical solution of the utility model provides a hidden door handle actuator, including:

[0005] Putting;

[0006] Rotating driving member;

[0007] The transmission mechanism includes a positioning shaft, a first spur gear fixedly mounted on the output shaft of the rotating drive member, a second spur gear rotatably mounted on the output shaft of the rotating drive member, a third spur gear rotatably mounted on the positioning shaft and having its two ends meshed with the first spur gear and one end of the second spur gear respectively, a fourth spur gear rotatably mounted on the positioning shaft and having one end meshed with the other end of the second spur gear, and a fifth spur gear connected to the push rod and meshed with the other end of the fourth spur gear.

[0008] Furthermore, the push rod, the output shaft of the rotation driving member and the positioning shaft are parallel to each other, and the positioning shaft is located between the push rod and the rotation driving member.

[0009] Furthermore, the push rod has a screw section and a smooth section, a screw hole is coaxially opened on the fifth spur gear, and the fifth spur gear is coaxially sleeved on the screw section of the push rod through the screw hole, and the screw hole is threadedly connected to the screw section of the push rod.

[0010] Furthermore, the transmission mechanism also includes a first limiting ring, which is fixedly sleeved on the end of the rotating driving member, and the inner side wall of the first limiting ring is in sliding contact with the side wall of the second spur gear.

[0011] Furthermore, the transmission mechanism also includes two second limiting rings, which are respectively fixed on both sides of the fifth spur gear, and the push rod passes through the two second limiting rings.

[0012] Furthermore, the hidden door handle actuator also includes a shell, which has a cavity, the screw section of the push rod is arranged in the cavity, the smooth section of the push rod rotates and extends to the outside of the shell, the rotating drive member is fixed in the cavity, the transmission mechanism is arranged in the cavity, both ends of the positioning shaft are fixedly connected to the shell, and the two second limit rings are rotatably connected to the shell.

[0013] Furthermore, the hidden door handle actuator also includes a limit block, which is slidably disposed in the cavity, and the end of the push rod is rotatably connected to the limit block.

[0014] Furthermore, the hidden door handle actuator also includes a shock-absorbing block, which is made of rubber material and fixed in the cavity. During the axial movement of the limit block along the push rod, it can abut against or separate from the shock-absorbing block.

[0015] Furthermore, the hidden door handle actuator also includes a sealing ring, which is arranged at the connection between the smooth section of the push rod and the shell.

[0016] Furthermore, the rotating drive member is a motor.

[0017] Compared with the prior art, the beneficial effects of the utility model include: when in use, the first spur gear and the third spur gear form a primary transmission, the third spur gear and the second spur gear form a secondary transmission, the second spur gear and the fourth spur gear form a tertiary transmission, and the fourth spur gear and the fifth spur gear form a fourth transmission. In the utility model, spur gears replace the worm gear transmission, which can improve the transmission efficiency, and the meshing between the spur gears has a smaller wear rate, which can increase the service life of the actuator. In addition, the first spur gear and the second spur gear are simultaneously assembled on the output shaft of the rotating drive member, and the third spur gear and the fourth spur gear are simultaneously assembled on the positioning shaft. When the number of gears in the actuator is large, the number of steel shafts can be reduced, thereby reducing the space occupied by the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a three-dimensional structural schematic diagram of a hidden door handle actuator provided by the utility model after omitting the shell cover;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of a hidden door handle actuator provided by the utility model;

[0020] Figure 3 yes Figure 1 A three-dimensional structural schematic diagram of a transmission mechanism in a hidden door handle actuator;

[0021] In the figure: 100 - push rod, 111 - screw rod section, 112 - smooth section, 200 - rotating drive member, 300 - transmission mechanism, 310 - positioning shaft, 320 - first spur gear, 330 - second spur gear, 340 - third spur gear, 350 - fourth spur gear, 360 - fifth spur gear, 370 - first limiting ring, 380 - second limiting ring, 400 - housing, 410 - cavity, 420 - bottom housing, 430 - housing cover, 500 - limiting block, 600 - shock absorbing block, 700 - sealing ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The utility model provides a hidden door handle actuator, the structure of which is as follows Figure 1 - Figure 3 As shown, it includes a push rod 100, a rotating driving member 200 and a transmission mechanism 300, wherein the transmission mechanism 300 includes a positioning shaft 310, a first spur gear 320 fixedly mounted on the output shaft of the rotating driving member 200, a second spur gear 330 rotatably mounted on the output shaft of the rotating driving member 200, a third spur gear 340 rotatably mounted on the positioning shaft 310 and having its two ends meshed with one end of the first spur gear 320 and the second spur gear 330 respectively, a fourth spur gear 350 rotatably mounted on the positioning shaft 310 and having one end meshed with the other end of the second spur gear 330, and a fifth spur gear 360 connected to the push rod 100 and meshed with the other end of the fourth spur gear 350.

[0024] When in use, by manipulating the rotating driving member 200, the output shaft of the rotating driving member 200 can be rotated, and the first spur gear 320 can be driven to rotate, and the third spur gear 340 can be driven to rotate through the first spur gear 320, and the second spur gear 330 can be driven to rotate through the third spur gear 340, and the fourth spur gear 350 can be driven to rotate through the second spur gear 330, and the fifth spur gear 360 can be driven to rotate through the fourth spur gear 350, and the power can be transmitted to the push rod 100 through the fifth spur gear 360, so that the push rod 100 moves, and the first spur gear 320 and the third spur gear 340 form a primary transmission, and the third spur gear 340 and the The second spur gear 330 forms a two-stage transmission, the second spur gear 330 and the fourth spur gear 350 form a three-stage transmission, and the fourth spur gear 350 and the fifth spur gear 360 form a four-stage transmission. In the utility model, spur gears replace the worm gear transmission, which can improve the transmission efficiency, and the meshing between the spur gears has a smaller wear rate, which can increase the service life of the actuator. In addition, the first spur gear 320 and the second spur gear 330 are simultaneously assembled on the output shaft of the rotating drive member 200, and the third spur gear 340 and the fourth spur gear 350 are simultaneously assembled on the positioning shaft 310. When the number of gears in the actuator is large, the number of steel shafts can be reduced, thereby reducing the space occupied by the transmission mechanism 300.

[0025] As a preferred embodiment, please refer to Figure 1 The push rod 100, the output shaft of the rotating driving member 200 and the positioning shaft 310 are parallel to each other, and the positioning shaft 310 is located between the push rod 100 and the rotating driving member 200, so that the third spur gear 340 and the fourth spur gear 350 are arranged between the rotating driving member 200 and the push rod 100, and the first spur gear 320 and the third spur gear 340 form a primary transmission, the third spur gear 340 and the second spur gear 330 form a secondary transmission, the second spur gear 330 and the fourth spur gear 350 form a tertiary transmission, and the fourth spur gear 350 and the fifth spur gear 360 form a fourth transmission, thereby transmitting power to the push rod 100, so that the push rod 100 moves.

[0026] As a preferred embodiment, please refer to Figure 1The push rod 100 has a screw segment 111 and a smooth segment 112. A screw hole is coaxially opened on the fifth spur gear 360, and the fifth spur gear 360 is coaxially sleeved on the screw segment 111 of the push rod 100 through the screw hole. The screw hole is threadedly connected to the screw segment 111 of the push rod 100. When the fifth spur gear 360 rotates, the push rod 100 can be moved along its axial direction through the threaded connection between the screw hole and the screw segment 111 of the push rod 100, so that the rotation of the rotating drive member 200 can be converted into the movement of the push rod 100 along its axial direction through the transmission mechanism 300.

[0027] As a preferred embodiment, please refer to Figure 1 and Figure 3 The transmission mechanism 300 also includes a first limiting ring 370, which is fixedly sleeved on the end of the rotating driving member 200. The inner side wall of the first limiting ring 370 is in sliding contact with the side wall of the second spur gear 330, so that the second spur gear 330 is limited by the first limiting ring 370 to prevent the second spur gear 330 from falling off the output shaft of the rotating driving member 200.

[0028] As a preferred embodiment, please refer to Figure 1 and Figure 3 The transmission mechanism 300 also includes two second limiting rings 380, and the two second limiting rings 380 are respectively fixed on both sides of the fifth spur gear 360. The push rod 100 passes through the two second limiting rings 380, and the fifth spur gear 360 can be limited by the two second limiting rings 380.

[0029] As a preferred embodiment, please refer to Figure 2 The hidden door handle actuator also includes a shell 400, which has a cavity 410. The screw section 111 of the push rod 100 is arranged in the cavity 410, and the smooth section 112 of the push rod 100 rotates and extends to the outside of the shell 400. The rotating drive member 200 is fixed in the cavity 410, and the transmission mechanism 300 is arranged in the cavity 410. Both ends of the positioning shaft 310 are fixedly connected to the shell 400, and the two second limiting rings 380 are rotatably connected to the shell 400. The push rod 100, the rotating drive member 200, and the transmission mechanism 300 are accommodated and supported by the shell 400.

[0030] As a preferred embodiment, please refer to Figure 1The hidden door handle actuator also includes a limit block 500, which is slidably disposed in the cavity 410, and the end of the push rod 100 is rotatably connected to the limit block 500, so that the push rod 100 is limited by the limit block 500 to prevent the push rod 100 from rotating with the rotation of the fifth spur gear 360.

[0031] As a preferred embodiment, please refer to Figure 1 The hidden door handle actuator also includes a shock-absorbing block 600, which is made of rubber material and fixed in the cavity 410. During the axial movement of the limit block 500 along the push rod 100, the limit block 500 can abut against or separate from the shock-absorbing block 600. The shock-absorbing block 600 can alleviate the impact of the limit block 500 with the shell 400 when it retreats.

[0032] As a preferred embodiment, please refer to Figure 1 The hidden door handle actuator further includes a sealing ring 700, which is disposed at the connection between the smooth section 112 of the push rod 100 and the housing 400 to improve the sealing performance.

[0033] As a preferred embodiment, the rotation driving member 200 is a motor, so that the first spur gear 320 can rotate.

[0034] As a preferred embodiment, please refer to Figure 1 and Figure 2 The shell 400 includes a bottom shell 420 and a shell cover 430. The cavity 410 is opened on the bottom shell 420. The shell cover 430 is fixedly disposed on the bottom shell 420. The shell cover 430 and the bottom shell 420 are laser welded in a whole circle to achieve extremely high sealing performance.

[0035] In order to better understand the present invention, the following Figure 1 - Figure 3 The working principle of the technical solution of the utility model is described in detail:

[0036] When in use, by manipulating the rotary drive member 200, the output shaft of the rotary drive member 200 can be rotated, and the first spur gear 320 can be driven to rotate, and the third spur gear 340 can be driven to rotate through the first spur gear 320, and the second spur gear 330 can be driven to rotate through the third spur gear 340, and the fourth spur gear 350 can be driven to rotate through the second spur gear 330, and the fifth spur gear 360 can be driven to rotate through the fourth spur gear 350, and power can be transmitted to the push rod 100 through the fifth spur gear 360, so that the push rod 100 moves, and when the fifth spur gear 360 rotates, it can be screwed to the screw segment 111 of the push rod 100 through the screw hole, and under the limiting action of the limit block 500, the push rod 100 can be moved along its axial direction, so that the smooth segment 112 of the push rod 100 can be adjusted. The length of the housing 400 is extended outward, the first spur gear 320 and the third spur gear 340 form a primary transmission, the third spur gear 340 and the second spur gear 330 form a secondary transmission, the second spur gear 330 and the fourth spur gear 350 form a tertiary transmission, and the fourth spur gear 350 and the fifth spur gear 360 form a fourth transmission. In the utility model, spur gears replace the worm gear transmission, which can improve the transmission efficiency, and the meshing between the spur gears has a smaller wear rate, which can increase the service life of the actuator. In addition, the first spur gear 320 and the second spur gear 330 are simultaneously assembled on the output shaft of the rotating drive member 200, and the third spur gear 340 and the fourth spur gear 350 are simultaneously assembled on the positioning shaft 310. When the number of gears in the actuator is large, the number of steel shafts can be reduced, thereby reducing the space occupied by the transmission mechanism 300.

[0037] The utility model provides a hidden door handle actuator with the following beneficial effects:

[0038] (1) The first spur gear 320 and the third spur gear 340 form a primary transmission, the third spur gear 340 and the second spur gear 330 form a secondary transmission, the second spur gear 330 and the fourth spur gear 350 form a tertiary transmission, and the fourth spur gear 350 and the fifth spur gear 360 form a quaternary transmission. The multi-stage transmission can improve the transmission ratio of the gears and increase the thrust of the push rod 100;

[0039] (2) Spur gears replace worm gears to improve transmission efficiency, and the meshing between spur gears has a lower wear rate, which can increase the service life of the actuator;

[0040] (3) The first spur gear 320 and the second spur gear 330 are simultaneously mounted on the output shaft of the rotating drive member 200, and the third spur gear 340 and the fourth spur gear 350 are simultaneously mounted on the positioning shaft 310. When the number of gears in the actuator is large, the number of steel shafts can be reduced, thereby reducing the space occupied by the transmission mechanism 300.

[0041] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A hidden door handle actuator, characterized in that: include: Putting; Rotating driving member; The transmission mechanism includes a positioning shaft, a first spur gear fixedly mounted on the output shaft of the rotating drive member, a second spur gear rotatably mounted on the output shaft of the rotating drive member, a third spur gear rotatably mounted on the positioning shaft and having its two ends meshed with the first spur gear and one end of the second spur gear respectively, a fourth spur gear rotatably mounted on the positioning shaft and having one end meshed with the other end of the second spur gear, and a fifth spur gear connected to the push rod and meshed with the other end of the fourth spur gear.

2. The hidden door handle actuator according to claim 1, characterized in that: The push rod, the output shaft of the rotation driving member and the positioning shaft are parallel to each other, and the positioning shaft is located between the push rod and the rotation driving member.

3. The hidden door handle actuator according to claim 1, characterized in that: The push rod has a screw section and a smooth section. A screw hole is coaxially opened on the fifth spur gear, and the fifth spur gear is coaxially sleeved on the screw section of the push rod through the screw hole. The screw hole is threadedly connected to the screw section of the push rod.

4. The hidden door handle actuator according to claim 1, characterized in that: The transmission mechanism further comprises a first limiting ring, which is fixedly sleeved on the end of the rotating driving member, and the inner side wall of the first limiting ring is in sliding contact with the side wall of the second spur gear.

5. The hidden door handle actuator according to claim 3, characterized in that: The transmission mechanism further includes two second limiting rings, which are respectively fixed on both sides of the fifth spur gear, and the push rod passes through the two second limiting rings.

6. The hidden door handle actuator according to claim 5, characterized in that: It also includes a shell, which has a cavity. The screw section of the push rod is arranged in the cavity. The smooth section of the push rod rotates and extends to the outside of the shell. The rotating drive member is fixed in the cavity. The transmission mechanism is arranged in the cavity. Both ends of the positioning shaft are fixedly connected to the shell, and the two second limit rings are rotatably connected to the shell.

7. The hidden door handle actuator according to claim 6, characterized in that: It also includes a limit block, which is slidably arranged in the cavity, and the end of the push rod is rotatably connected to the limit block.

8. The hidden door handle actuator according to claim 7, characterized in that: It also includes a shock-absorbing block, which is made of rubber material and fixed in the cavity. During the axial movement of the limit block along the push rod, it can abut against or separate from the shock-absorbing block.

9. The hidden door handle actuator according to claim 6, characterized in that: It also includes a sealing ring, which is arranged at the connection between the smooth section of the push rod and the shell.

10. The hidden door handle actuator according to claim 1, characterized in that: The rotating driving member is a motor.

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