CN214424258U

CN214424258U - Electric actuator of vehicle hidden door handle mechanism

Info

Publication number: CN214424258U
Application number: CN202022398525.9U
Authority: CN
Inventors: 许宁宁; 贺海亮; 刘培海
Original assignee: Ningbo Hengshuai Co ltd
Current assignee: Ningbo Hengshuai Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-10-19
Anticipated expiration: 2030-10-26

Abstract

The electric actuator of the hidden door handle mechanism for the vehicle comprises an output gear, a bearing, a shaft seal, a speed reducer, a direct current motor and an elastic sealing sleeve, wherein the output gear is fixed on an output shaft of the speed reducer, a cylindrical bearing, the shaft seal and the cylindrical bearing are sequentially arranged in an inner hole of an output shaft end shell of the speed reducer, the direct current motor is connected with the speed reducer through a motor output shaft, the elastic sealing sleeve is sleeved on a shell of the direct current motor and the speed reducer, a wire harness positioning sleeve is further arranged on the outer circle of the elastic sealing sleeve to fix a wire harness, and the wire harness penetrates through the elastic sealing sleeve to be connected and conducted with the direct current motor. The utility model discloses an electric actuator seals water-proof effects well, and the assembly is simple, and production efficiency is high, and is with low costs, also convenient dismantlement and maintenance simultaneously.

Description

Electric actuator of vehicle hidden door handle mechanism

Technical Field

The utility model relates to an electric actuator of automobile-used hidden door handle mechanism.

Background

Because the possibility of water leakage exists in the two positions of the automobile side window glass and the hidden door handle, the electric actuator used by the hidden door handle mechanism is required to have a waterproof function, otherwise, the electric actuator is subjected to a short-circuit fault after water enters, so that the function of the hidden door handle mechanism is failed.

The waterproof structure that current electric actuator adopted does: the motor and the speed reducer are sleeved after the shell and the end cover are welded and combined, a wire harness consisting of a power line and a signal line of the motor is sealed by glue pouring at a wire harness leading-out port, and the matching part of the opening end surface of the shell and the shell of the speed reducer is coated with glue by the whole circumference.

Disclosure of Invention

The utility model aims to solve the technical problem that to prior art situation and provide an electric actuator of automobile-used hidden door handle mechanism, its easy to produce, convenient dismantlement.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the electric actuator of the hidden door handle mechanism for the vehicle comprises an output gear, a bearing, a shaft seal, a speed reducer, a direct current motor and an elastic sealing sleeve, wherein the output gear is fixed on an output shaft of the speed reducer, a cylindrical bearing, the shaft seal and the cylindrical bearing are sequentially arranged in an inner hole of an output shaft end shell of the speed reducer, the direct current motor is connected with the speed reducer through a motor output shaft, the elastic sealing sleeve is sleeved on a shell of the direct current motor and the speed reducer, a wire harness positioning sleeve is further arranged on the outer circle of the elastic sealing sleeve to fix a wire harness, and the wire harness penetrates through the elastic sealing sleeve to be connected and conducted with the direct current motor.

Preferably, the inner side of the shaft seal is provided with an arc sealing lip to seal with the output shaft, the water side is provided with a concave arc lip, the holding force of the arc sealing lip on the output shaft can be increased when the water pressure is increased, the waterproof pressure is increased, the convex arc lip is arranged on the water-free side, so that the arc sealing lip has enough strength, the upper end surface and the lower end surface are arranged to be positioned with cylindrical bearings on two sides of the shaft seal, and the outer circular surface is arranged to seal with an inner hole of a shell of the planetary gear reducer.

Preferably, the outer circular surface of the closed end of the elastic sealing sleeve is provided with a wire harness hole, the inner side of the wire harness hole is provided with a sealing ring, and the sealing section of the wire harness penetrates through the wire harness hole and is sealed by the sealing ring, so that the sealing effect is better.

Preferably, the end face of the elastic sealing sleeve is provided with an air tightness detection hole, the sealing plug is arranged to seal the air tightness detection hole, and the inner wall of the elastic sealing sleeve is provided with an air flow channel to the planetary gear reducer shell, so that the reduction gear can be subjected to sealing detection.

Preferably, a sealing part is arranged on the wall of the air tightness detection hole, a guide arc is arranged on the end face of the sealing plug, the sealing plug is arranged in the air tightness detection hole to play a guide role, and an anti-falling ring is arranged to be matched with a positioning surface of the elastic sealing sleeve to prevent the sealing plug from falling off.

More specifically, the speed reducer is a planetary gear speed reducer, a sun gear is arranged on a motor shaft of the direct current motor, and the sun gear is meshed with a planet gear of the planetary gear speed reducer.

Preferably, the speed reducer comprises a shell and a speed reducer end cover, the shell is fixed to the speed reducer end cover, and the end face of the speed reducer end cover is provided with a sound-absorbing noise-reducing hole, so that noise of the speed reducer can be reduced.

Preferably, inhale the sound and fall the noise orifice portion and the bottom and be equipped with arc horn mouth and oval counter sink face respectively, inhale the sound effect better like this.

Preferably, the other end of the shell of the planetary gear reducer is attached to the bottom surface of the reducer end cover, the shell of the planetary gear reducer is fixedly connected with the reducer end cover, and the reducer end cover is fixedly connected with the end surface of the direct current motor, so that the connection sealing performance is good.

Preferably, the wire harness positioning sleeve and the elastic sealing sleeve are integrated, so that the independent manufacture of parts of the wire harness positioning sleeve can be omitted, and meanwhile, the assembly can be omitted, and the cost is reduced.

Compared with the prior art, the utility model has the advantages of: the shaft seal is arranged on the output shaft of the planetary gear reducer of the electric actuator for waterproof sealing, the elastic sealing sleeves are arranged outside the direct current motor and the planetary gear reducer and respectively form sealing with the direct current motor, the outside of the planetary gear reducer and a wire harness for waterproofing, the sealing and waterproof effect is good, the assembly is simple, the production efficiency is high, the cost is low, and meanwhile, the disassembly and the maintenance are convenient.

The elastic sealing sleeve is provided with an air tightness detection hole and a corresponding sealing plug for sealing, so that the air tightness detection of the electric actuator can be realized, and the requirement for sealing the whole electric actuator can be met.

Drawings

Fig. 1 is a schematic view of an electric actuator of a hidden door handle mechanism for a vehicle according to an embodiment of the present invention.

Fig. 2 is an exploded view of an electric actuator of a hidden door handle mechanism for a vehicle according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of an electric actuator of a hidden door handle mechanism for a vehicle according to an embodiment of the present invention.

Fig. 4a and 4b are schematic structural views of the shaft seal according to the embodiment of the present invention.

Fig. 5a, 5b, 5c are schematic structural diagrams of the reducer end cover according to the embodiment of the present invention.

Fig. 6a, 6b, 6c, 6d, 6e are schematic structural views of the elastic sealing sleeve according to the embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a sealing plug according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of the wire harness positioning sleeve according to the embodiment of the present invention.

Detailed Description

The invention will be further described with reference to the following embodiments.

As shown in fig. 1 to 8, an electric actuator of a hidden door handle mechanism for a vehicle includes a snap ring gasket 10, an output gear 20, a split washer 30, an output gasket 40, a cylindrical bearing 50, a shaft seal 60, a cylindrical bearing 70, a planetary gear reducer 80, a cylindrical pin 90, a reducer end cover 100, a sun gear 110, a bolt 120, a dc motor 130, an elastic sealing sleeve 140, a sealing plug 150, a wire harness positioning sleeve 160, and a wire harness 170.

The inner hole of the planetary gear reducer housing 802 at the output shaft 801 end of the planetary gear reducer 80 is sequentially provided with the cylindrical bearing 50, the shaft seal 60 and the cylindrical bearing 70, the outer circles of the cylindrical bearing 50 and the cylindrical bearing 70 are fixed in the inner hole of the housing 802, the inner circle and the surface of the output shaft 801 slide and rub and support the output shaft 801, and the shaft seal 60 and the output shaft 801 and the housing 802 form a waterproof sealing structure respectively.

The housing 802 is further provided with a mounting screw hole 8021 through which it is mounted to a place of use.

An output gasket 40 is arranged on an output shaft 801 of the planetary gear reducer 80, and a split washer 30 is arranged in a groove of the output shaft 801 to limit the output shaft 801.

An output gear 20 is further arranged on the output shaft 801 and used for torque output of the electric actuator, and a snap ring gasket 10 is arranged in the other groove of the output shaft 801 and used for limiting the output gear 20.

The motor shaft 1301 of the direct current motor 130 is provided with a sun gear 110, the sun gear is meshed with a planet gear of a planet gear reducer, the torque of the direct current motor 130 is transmitted to the planet gear reducer 80, the end face of the reducer end cover 100 and the direct current motor 130 is fixedly connected through a bolt 120, the other end of a shell 802 of the planet gear reducer 80 is attached to the bottom face of the reducer end cover 100, and a cylindrical pin 90 is arranged to fixedly connect the shell 802 of the planet gear reducer 80 and the reducer end cover 100.

An elastic sealing sleeve 140 is arranged outside the direct current motor 130 and the planetary gear reducer 80 which are fixedly connected for waterproof sealing, a sealing plug 150 is arranged on the end face of the elastic sealing sleeve 140, a wiring harness positioning sleeve 160 is arranged on the outer circle of the elastic sealing sleeve to fix a wiring harness 170, and the wiring harness 170 penetrates through the elastic sealing sleeve 140 to be connected and conducted with the direct current motor 130.

Fig. 4a is a perspective view of the shaft seal 60, fig. 4b is a schematic sectional view thereof, an arc sealing lip 601 is disposed on the inner side of the shaft seal 60 to form a waterproof sealing structure with the output shaft 801, a concave arc lip 602 is disposed on the water side to increase the holding force of the arc sealing lip 601 on the output shaft 801 when the water pressure is increased, and increase the waterproof pressure, a convex arc lip 603 is disposed on the water-free side to make the arc sealing lip 601 have sufficient strength, an upper end surface 606 and a lower end surface 604 are disposed to be positioned with the

cylindrical bearings

50 and 70 on both sides of the shaft seal 60, and an outer circular surface 605 is disposed to form a waterproof sealing structure with the inner hole of the housing 802 of the planetary gear reducer 80.

Fig. 5a is a perspective view of the reducer end cover 100, fig. 5b is a top view thereof, fig. 5c is a H-H cross-sectional view of fig. 5b, the center of the reducer end cover 100 is provided with a positioning hole 1005 and a motor spigot 1303 for matching and positioning, so as to ensure the concentricity of the dc motor 130 and the planetary gear reducer 80, the outer circle is provided with a cylindrical pin hole 1004, the planetary gear reducer 80 is fixedly connected with the cylindrical pin 90, the end surface is provided with a sound-absorbing and noise-reducing hole 1001, and the mouth and the bottom of the sound-absorbing and noise-reducing hole 1001 are respectively provided with an arc-shaped bell mouth 1002 and an oval counter bore surface 1003, so as to play a role in absorbing sound and reducing noise.

Fig. 6a is a perspective view of the elastic sealing sleeve 140, fig. 6b is a top view thereof, fig. 6c is an enlarged view of a partial cross-section from E to E of fig. 6b, fig. 6d is a schematic structural view of the elastic sealing sleeve 140, fig. 6E is a cross-sectional view from F to F of fig. 6d, the elastic sealing sleeve 140 is provided with a sealing ring 1401 at an inner hole of an open end to form a waterproof sealing structure with a housing 802 of the planetary gear reducer 80, guide arcs 14012, fixing grooves 1402 and anti-rotation clips 14011 are respectively provided at an outer circumferential surface for assembly guidance, axial limitation and circumferential limitation of the wire harness positioning sleeve 160, a wire harness hole 1407 is provided at an outer circumferential surface of a closed end and a sealing ring 1408 is provided inside the wire harness hole 1407 to allow the wire harness 170 to pass through and cooperate with a sealing section 1701 of the wire harness 170 to form a waterproof sealing structure, see fig. 1.

The sealing end is provided with an air tightness detection hole 1403, a sealing ring 1408 is arranged on the inner side of the air tightness detection hole 1403, the end face is provided with a positioning surface 1404 and an air inlet groove 1406, the inner hole surface of the elastic sealing sleeve 140 is provided with an air vent groove 1409, the air inlet pipe and the sealing ring 1401 are detected to form sealing to prevent air leakage, high-pressure air enters from the air inlet groove 1406 and enters the shell 802 of the planetary gear reducer 80 through the air vent groove 1409 to be detected in the air tightness, and the inner side face of the sealing end of the elastic sealing sleeve 140 is further provided with a positioning platform 14010 to axially position the direct current motor 130.

As shown in fig. 7, a guiding arc 1501 is arranged on the end surface of the sealing plug 150, the air tightness detection hole 1403 installed in the elastic sealing sleeve 140 plays a guiding role, a drop-proof ring 1502 is arranged to be matched with a positioning surface 1404 of the elastic sealing sleeve 140 to prevent the sealing plug 150 from dropping, and a cylindrical surface 1503 and a sealing ring 1405 of the air tightness detection hole 1403 are arranged to form a waterproof sealing structure.

As shown in fig. 8, the harness positioning sleeve 160 is provided with a mounting hole 1601 which is embedded in the fixing groove 1402 of the elastic sealing sleeve 140 for axial limiting, a positioning surface 1603 is provided to match with the positioning hole 1602 and the fixing section 1702 of the harness 170, the fixing section 1702 passes through the positioning hole 1602, and the positioning hole 1602 fixes the harness 170, as shown in fig. 1.

Claims

1. The utility model provides an electric actuator of automobile-used hidden door handle mechanism which characterized in that: the output gear is fixed on an output shaft of the speed reducer, a cylindrical bearing, a shaft seal and a cylindrical bearing are sequentially arranged in an inner hole of an output shaft end shell of the speed reducer, the direct current motor is connected with the speed reducer through a motor output shaft, the elastic sealing sleeve is sleeved on a shell of the direct current motor and the speed reducer, a wire harness positioning sleeve is further arranged on the outer circle of the elastic sealing sleeve to fix a wire harness, and the wire harness penetrates through the elastic sealing sleeve to be connected and conducted with the direct current motor.

2. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 1, wherein: the inner side of the shaft seal is provided with an arc sealing lip for sealing with an output shaft, the water side is provided with a concave arc lip, the water-free side is provided with a convex arc lip, the upper end surface and the lower end surface are positioned with cylindrical bearings on two sides of the shaft seal, and the outer circular surface is arranged for sealing with an inner hole of a shell of the planetary gear reducer.

3. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 1, wherein: the outer circular surface of the closed end of the elastic sealing sleeve is provided with a wire harness hole, the inner side of the wire harness hole is provided with a sealing ring, and the sealing section of the wire harness penetrates through the wire harness hole and is sealed by the sealing ring.

4. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 1, wherein: the end face of the elastic sealing sleeve is provided with an air tightness detection hole, the sealing plug is arranged to seal the air tightness detection hole, and an air flow channel is arranged on the inner wall of the elastic sealing sleeve to reach the planetary gear reducer shell.

5. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 4, wherein: the wall of the air tightness detection hole is provided with a sealing part, the end face of the sealing plug is provided with a guide arc, the sealing plug is arranged in the air tightness detection hole to play a role in guiding, and an anti-drop ring is arranged to be matched with a positioning surface of the elastic sealing sleeve.

6. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 1, wherein: the speed reducer is a planetary gear speed reducer, a sun gear is arranged on a motor shaft of the direct current motor, and the sun gear is meshed with a planet gear of the planetary gear speed reducer.

7. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 1, wherein: the speed reducer comprises a shell and a speed reducer end cover, wherein the shell is fixed with the speed reducer end cover, and the end face of the speed reducer end cover is provided with a sound-absorbing noise-reducing hole.

8. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 7, wherein: the sound-absorbing noise-reducing hole part and the bottom part are respectively provided with an arc-shaped horn mouth and an oval counter bore surface.

9. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 6, wherein: the other end of the shell of the planetary gear reducer is attached to the bottom surface of the reducer end cover, the shell of the planetary gear reducer is fixedly connected with the reducer end cover, and the reducer end cover is fixedly connected with the end face of the direct current motor.

10. The electric actuator of a hidden door handle mechanism for a vehicle as claimed in claim 1, wherein: the wire harness positioning sleeve and the elastic sealing sleeve are integrated.