KR101749295B1 - Actuator for auto headlamp leveling system - Google Patents

Actuator for auto headlamp leveling system Download PDF

Info

Publication number
KR101749295B1
KR101749295B1 KR1020150179532A KR20150179532A KR101749295B1 KR 101749295 B1 KR101749295 B1 KR 101749295B1 KR 1020150179532 A KR1020150179532 A KR 1020150179532A KR 20150179532 A KR20150179532 A KR 20150179532A KR 101749295 B1 KR101749295 B1 KR 101749295B1
Authority
KR
South Korea
Prior art keywords
housing
sensor
shaft
motor
rotational force
Prior art date
Application number
KR1020150179532A
Other languages
Korean (ko)
Inventor
철 임
최정필
Original Assignee
주식회사 오토산업
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 오토산업 filed Critical 주식회사 오토산업
Priority to KR1020150179532A priority Critical patent/KR101749295B1/en
Application granted granted Critical
Publication of KR101749295B1 publication Critical patent/KR101749295B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/068—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F16H1/166—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with members rotating around axes on the worm or worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

An actuator for an auto headlamp leveling system includes a housing, a printed circuit board, a motor, a planetary gear assembly, a shaft, a control bar, and a rotation sensor. The printed circuit board is mounted in the housing. The motor is connected to the printed circuit board in the housing and generates forward and reverse rotational force. The planetary gear assembly receives and reduces the rotational force of the motor in the housing. The shaft rotates through the planetary gear assembly in the housing and receives the reduced rotational force. The adjustment bar is pulled out of the housing in a state of being screwed to the shaft, and is guided by the housing and reciprocates along the longitudinal direction. The rotation sensor detects the rotation position and the rotation direction of the shaft.

Figure R1020150179532

Description

[0001] The present invention relates to an actuator for an auto headlamp leveling system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuator employed in an auto head lamp leveling system for automatically adjusting an irradiation angle of a headlamp for a vehicle.

In general, bulb type lamps and high intensity discharge (HID) lamps are widely used as vehicle headlamps. The HID lamp is mainly used as a downward light lamp.

When the HID lamp is used as a headlamp for a vehicle, a leveling device for adjusting the angle of irradiation of the HID lamp must be installed. The leveling device is configured to adjust the angle of irradiation of the head lamp by vertically pivoting the reflector by the actuator. Recently, an auto head lamp leveling system, which automatically adjusts the irradiation angle of a headlamp for a vehicle, is applied to a vehicle for convenience of use.

Published Japanese Patent Application No. 10-2014-0059645 (published on May 16, 2014)

An object of the present invention is to provide an actuator for an auto head lamp leveling system capable of reducing noise during driving.

According to an aspect of the present invention, there is provided an actuator for an automatic head lamp leveling system, including a housing, a printed circuit board, a motor, a planetary gear assembly, a shaft, a control bar, and a rotation sensor. The printed circuit board is mounted in the housing. The motor is connected to the printed circuit board in the housing and generates forward and reverse rotational force. The planetary gear assembly receives and reduces the rotational force of the motor in the housing. The shaft rotates through the planetary gear assembly in the housing and receives the reduced rotational force. The adjustment bar is pulled out of the housing in a state of being screwed to the shaft, and is guided by the housing and reciprocates along the longitudinal direction. The rotation sensor detects the rotation position and the rotation direction of the shaft.

According to the present invention, when the irradiation angle of the head lamp is adjusted by the auto head lamp leveling system, the operating noise of the actuator can be reduced, thereby providing a comfortable driving environment for the driver.

According to the present invention, as compared with the variable resistance method, the resolving power for sensing the rotational position and the rotational direction of the shaft can be enhanced, so that the irradiation angle of the head lamp can be precisely controlled.

1 is a perspective view of an actuator for an auto head lamp leveling system according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of Fig. 1. Fig.
3 is a perspective view showing the inside of the actuator shown in Fig.
FIG. 4 is a side view showing the rotation sensor taken in FIG. 3; FIG.
Fig. 5 is a sectional view of Fig. 1. Fig.
FIG. 6 is a cross-sectional view showing an example of operation of the adjustment bar in FIG.
FIG. 7 is a side view showing an operation example of the actuator shown in FIG. 1. FIG.

The present invention will now be described in detail with reference to the accompanying drawings. Here, the same reference numerals are used for the same components, and a detailed description of known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

1 is a perspective view of an actuator for an auto head lamp leveling system according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of Fig. 1. Fig. 3 is a perspective view showing the inside of the actuator shown in Fig. FIG. 4 is a side view showing the rotation sensor taken in FIG. 3; FIG.

1 to 4, an actuator 100 for an automatic head lamp leveling system includes a housing 110, a printed circuit board 120, a motor 130, a planetary gear assembly 140, a shaft 150, an adjustment bar 160, and a rotation sensor 170.

The housing 110 is connected to the printed circuit board 120, the motor 130, the planetary gear assembly 140, the shaft 150, and the rotation sensor 170 in a state where the control bar 160 is drawn out. Accepts and protects internal components. The housing 110 may include a housing body 111 and a housing cover 116.

The housing main body 111 and the housing cover 116 each have an internal space and are formed in such a manner that portions facing each other are opened. The housing body 111 and the housing cover 116 form a space for accommodating the internal components in the assembled state. The housing main body 111 and the housing cover 116 can be assembled or disassembled to facilitate assembly or disassembly of the internal components in the housing 110. [

The housing main body 111 can be sealed by the gasket 117 at the assembling site with the housing cover 116. [ The housing main body 111 may have a coupling protrusion 112 at a portion where the control bar 160 is drawn out. The engaging projection 112 is engaged with the head lamp, and the joint portion with the head lamp can be sealed by the gasket 113.

The printed circuit board 120 is mounted in the housing 110. The circuit portion of the printed circuit board 120 is connected to the motor 130. The printed circuit board 120 may be connected to the motor 130 through a motor terminal coupled to the circuitry. The printed circuit board 120 may receive the motor driving signal from the control unit of the auto head lamp leveling system and output the motor driving signal to the motor 130.

The circuitry of the printed circuit board 120 is connected to the proximity sensor 176 of the rotation sensor 170. The printed circuit board 120 receives a signal from the proximity sensor 176 and outputs the signal to the control unit of the auto head lamp leveling system. The printed circuit board 120 may include a control module (not shown) for processing signals input from the proximity sensor 176. Meanwhile, the printed circuit board 120 may be connected to the connector 121 for signal input / output. The connector 121 may be disposed outside the housing 110 and connected to the auto head lamp leveling system through a wire harness.

The motor 130 is connected to the printed circuit board 120 in the housing 110. The motor 130 generates forward and reverse rotational force. The motor 130 can be controlled by the control unit of the auto head lamp leveling system to generate forward and reverse rotational force.

The planetary gear assembly 140 receives and reduces the rotational force of the motor 130 in the housing 110. In one example, the planetary gear assembly 140 includes a package 141, a sun gear 142, a ring gear 143, a plurality of planet gears 144, and a carrier 145.

The package 141 packages the sun gear 142, the ring gear 143 and the plurality of planetary gears 144 to prevent dust from being generated during operation of the gears 142, 143, 144 . The package 141 can be fixed within the housing 110 by a fixing structure provided in the housing 110. [

The sun gear 142 is disposed in the center of the package 141 and receives rotational force from the motor 130. The sun gear 142 may be supported by a support shaft 145a protruding from the center of the carrier 145 so as to be rotatable.

The ring gear 143 is disposed on the outer side of the sun gear 142 and concentrically with the sun gear 142 and formed on the inner wall of the package 141. The ring gear 143 may be made of a separate member and fixed to the inner wall of the package 141.

The planetary gears 144 are arranged along the circumference of the sun gear 142 between the sun gear 142 and the ring gear 143. Each of the planetary gears 144 is meshed with the sun gear 142 at one side, and meshed with the ring gear 143 at the other side.

The carrier 145 rotatably supports the planetary gears 144. The planet gears 144 can be rotatably supported on the carrier 145 by the shaft members 144a, respectively. The carrier 145 transmits rotational force generated by idle rotation of the planetary gears 144 to the shaft 150. More specifically, when the sun gear 142 rotates due to the rotational force of the motor 130, the planetary gears 144 rotate and revolve between the sun gear 142 and the ring gear 143. The carrier 145 is rotated by the revolution of the planetary gears 144, and the rotational force is transmitted to the shaft 150. At this time, the rotational force of the motor 130 input to the sun gear 142 is reduced and output to the shaft 150 through the carrier 145.

This planetary gear assembly 140 has the characteristic that all the gears 142, 143, 144 are always engaged, resulting in low operating noise. In addition, the planetary gear assembly 140 can convert the rotational force of the motor 130 into low speed and high torque and transmit the torque to the shaft 150, thereby further reducing the operating noise. Therefore, when the irradiation angle of the head lamp is adjusted by the auto head lamp leveling system, particularly when the irradiation angle of the head lamp is frequently adjusted according to the attitude of the vehicle during driving, the operating noise of the actuator 100 is reduced, Thereby providing a comfortable vehicle driving environment.

The motor 130 may provide a rotational force to the sun gear 142 via a worm 131 and a worm gear 132. The worm 131 is coaxially fixed to the drive shaft of the motor 130. The worm gear 132 is fixed coaxially with the sun gear 142 and engaged with the worm 131. The motor 130 is housed in the housing 110 with the drive shaft positioned in a direction perpendicular to the longitudinal direction of the shaft 150 so that the thickness of the housing 110 along the longitudinal direction of the shaft 150 can be reduced . Therefore, it is easy to apply the actuator 100 as a built-in head lamp.

The shaft 150 rotates through the planetary gear assembly 140 in the housing 110 by receiving the reduced rotational force. The shaft 150 is coaxially connected to the carrier 145 and rotates with the carrier 145. The shaft 150 may be formed with a male screw at an end thereof facing the adjustment bar 160.

The adjustment bar 160 is pulled out of the housing 110 while being screwed to the shaft 150. [ The adjustment bar 160 may have a recessed groove formed at an end thereof toward the shaft 150, and a female screw may be formed in the recessed groove. The female thread of the control bar 160 can be engaged with the male thread of the shaft 150. [

The control bar 160 is guided by the housing 110 and reciprocates along the longitudinal direction. At least two guide protrusions 161 may be formed around the portion where the control bar 160 is inserted into the housing 110. The housing 110 may be formed with guide grooves 110a for guiding the sliding movement of the adjusting bar 160 in the lengthwise direction while sandwiching the guide protrusions 161 therebetween. Therefore, as shown in FIGS. 5 and 6, when the shaft 150 is rotated in the forward and reverse directions, the control bar 160 can reciprocate along the longitudinal direction in a rotationally restrained state.

As shown in Fig. 7, the control bar 160 is coupled to the reflector 11 of the headlamp. The reflector 11 reflects the light radiated from the lamp 12 of the headlamp toward the front of the vehicle. The reflector 11 can be pivotally mounted in the headlamp in the vertical direction. The control bar 160 moves back and forth along the longitudinal direction to pivot the reflecting mirror 11 in the vertical direction, thereby adjusting the angle of irradiation of the head lamp.

The rotation sensor 170 senses the rotational position and the rotational direction of the shaft 150. The amount of movement of the control bar 160 is set according to the rotation position and the rotation direction of the shaft 150 and the angle of irradiation of the head lamp by the reflector can be set according to the movement amount of the control bar 160. [ Accordingly, when the information about the rotational position and the rotational direction of the shaft 150 is sensed by the rotation sensor 170 and provided to the control unit of the auto head lamp leveling system, the control unit determines, based on the information detected from the rotation sensor 170 The driving angle of the head lamp according to the vehicle posture can be adjusted to a set angle by driving and controlling the motor 130. [

2 to 4, the rotation sensor 170 includes sensor dogs 171, and a proximity sensor 176. The sensors 171, The sensor dogs 171 are arranged along the circumferential direction with respect to the center of the shaft 150 and rotate together with the shaft 150. The sensor dogs 171 may be formed in a disc member 172 coaxially fixed to the carrier 145. The disc member 172 penetrates the shaft 150 through the center. The sensor dogs 171 are arranged along the edge of the disc member 172 and protrude toward the printed circuit board 120, respectively.

The sensor dogs 171 may be arranged at the same pitch. As another example, the sensor dog 171 may be arranged to gradually increase or decrease the pitch along the circumferential direction. In this case, the direction of rotation of the sensor dogs can be easily detected. In addition, any one of the sensor dogs 171 may be used to detect the reference position, which is wider or narrower than the other sensor dogs.

The proximity sensor 176 is mounted on the printed circuit board 120 to be positioned on the rotational path of the sensor dogs 171 to sense one of the sensor dogs 171. In one example, the proximity sensor 176 may be an optical sensor. In this case, the proximity sensor 176 includes a light emitting portion 176a and a light receiving portion 176b. The light emitting portion 176a and the light receiving portion 176b are fixed to the sensor bracket via one sensor dog 171 on the rotation path of the sensor dogs 171. [

The light emitting portion 176a is arranged so that the light emitting portion faces the light receiving portion of the light receiving portion 176b. The light receiving portion 176b generates a pulse whenever the sensor dog 171 senses the sensor dog 171 when passing between the light emitting portion 176a and the sensor dog 171. [ The rotation position and the rotation direction of the shaft 150 can be detected from the pulse information. Since the rotational position and the rotational direction of the shaft 150 are detected by the combination of the sensor dogs 171 and the optical proximity sensor 176, the resolution can be increased as compared with the variable resistance method. Therefore, the irradiation angle of the head lamp can be precisely controlled. As another example, the proximity sensor may be a hall sensor. In this case, the sensor dogs are each made up of permanent magnets.

On the other hand, the gyro sensor 181 and the acceleration sensor 182 can be mounted on the printed circuit board 120. Information measured from the gyro sensor 181 and the acceleration sensor 182 may be provided to the control unit of the auto headlamp leveling system. The control unit sets the irradiation angle of the headlamp according to the vehicle posture based on the information measured from the gyro sensor 181 and the acceleration sensor 182 at the time of stopping or traveling the vehicle, The motor 130 can be driven and controlled.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation and that those skilled in the art will recognize that various modifications and equivalent arrangements may be made therein. It will be possible. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

110 .. Housing
120. Printed Circuit Board
130 .. Motor
140 .. Planetary gear assembly
142 .. Sun gear
143 .. ring gear
144 .. Planetary gear
145 .. Carrier
150 .. Shaft
160 .. Adjustment Bar
170 .. Rotation Detector
171 .. Sensor Dog
176 .. Proximity sensor

Claims (5)

housing;
A printed circuit board mounted within the housing;
A motor connected to the printed circuit board in the housing to generate forward and reverse rotational force;
A planetary gear assembly for receiving and decelerating a rotational force of the motor in the housing;
A shaft rotatably receiving a reduced rotational force through the planetary gear assembly in the housing;
A control bar withdrawn from the housing in a state of being screwed to the shaft and guided by the housing and reciprocating along the longitudinal direction; And
And a rotation sensor for sensing the rotation of the shaft,
The rotation sensor comprises:
Sensor dogs formed on the disk member so as to be arranged along the circumferential direction with respect to the center of the shaft and rotated together with the shaft,
And a proximity sensor mounted on the printed circuit board so as to be disposed on the rotation path of the sensor dogs and sensing one of the sensor dogs,
One of the sensor dogs is wider or narrower than the other sensor dogs and is used to sense the reference position,
Wherein the proximity sensor includes a light emitting portion and a light receiving portion, and the light emitting portion and the light receiving portion are fixed to the sensor bracket with one sensor dog interposed therebetween on the rotation path of the sensor dogs.
The method according to claim 1,
The planetary gear assembly includes:
Package,
A sun gear disposed in the center of the package and receiving rotational force from the motor,
A ring gear disposed on the outer side of the sun gear and concentrically with the sun gear and formed on an inner wall of the package,
A plurality of planetary gears arranged along the circumference of the sun gear between the sun gear and the ring gear and each having one side portion engaged with the sun gear and each other side portion meshed with the ring gear,
And a carrier for transmitting rotational force generated by revolution of the planetary gears to the shaft.
3. The method of claim 2,
A worm coaxially fixed to a drive shaft of the motor,
Further comprising a worm gear fixed coaxially with the sun gear to mesh with the worm.
delete The method according to claim 1,
Further comprising a gyro sensor and an acceleration sensor mounted on the printed circuit board.
KR1020150179532A 2015-12-15 2015-12-15 Actuator for auto headlamp leveling system KR101749295B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150179532A KR101749295B1 (en) 2015-12-15 2015-12-15 Actuator for auto headlamp leveling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150179532A KR101749295B1 (en) 2015-12-15 2015-12-15 Actuator for auto headlamp leveling system

Publications (1)

Publication Number Publication Date
KR101749295B1 true KR101749295B1 (en) 2017-06-21

Family

ID=59281951

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150179532A KR101749295B1 (en) 2015-12-15 2015-12-15 Actuator for auto headlamp leveling system

Country Status (1)

Country Link
KR (1) KR101749295B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107585319A (en) * 2017-09-09 2018-01-16 安徽工程大学 A kind of 90 degree of rotating illuminating light fixtures with planet gear reducing mechanism
KR20200058628A (en) * 2018-11-19 2020-05-28 미네베아미츠미 가부시키가이샤 Actuator and Method for controlling thereof and electronic device
KR20200058627A (en) * 2018-11-19 2020-05-28 미네베아미츠미 가부시키가이샤 Actuator and Method for controlling thereof and electronic device
KR20210137575A (en) * 2019-03-28 2021-11-17 다이슨 테크놀러지 리미티드 How to Determine Rotor Position of Brushless Permanent Magnet Motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014051256A (en) * 2012-09-10 2014-03-20 Takahata Precision Japan Co Ltd Vehicle headlamp leveling device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014051256A (en) * 2012-09-10 2014-03-20 Takahata Precision Japan Co Ltd Vehicle headlamp leveling device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107585319A (en) * 2017-09-09 2018-01-16 安徽工程大学 A kind of 90 degree of rotating illuminating light fixtures with planet gear reducing mechanism
KR20200058628A (en) * 2018-11-19 2020-05-28 미네베아미츠미 가부시키가이샤 Actuator and Method for controlling thereof and electronic device
KR20200058627A (en) * 2018-11-19 2020-05-28 미네베아미츠미 가부시키가이샤 Actuator and Method for controlling thereof and electronic device
KR102611102B1 (en) * 2018-11-19 2023-12-07 미네베아미츠미 가부시키가이샤 Actuator and Method for controlling thereof and electronic device
KR102648826B1 (en) * 2018-11-19 2024-03-20 미네베아미츠미 가부시키가이샤 Actuator and Method for controlling thereof and electronic device
KR20210137575A (en) * 2019-03-28 2021-11-17 다이슨 테크놀러지 리미티드 How to Determine Rotor Position of Brushless Permanent Magnet Motor
KR102631215B1 (en) 2019-03-28 2024-01-31 다이슨 테크놀러지 리미티드 How to determine the rotor position of a brushless permanent magnet motor

Similar Documents

Publication Publication Date Title
KR101749295B1 (en) Actuator for auto headlamp leveling system
CN102139659B (en) Actuator
JP4592706B2 (en) Electric lamp adjustment device
US10261174B2 (en) Laser radar device
US10466077B2 (en) Optical connection device, optical communication device, displacement detection device, and robot
KR102321099B1 (en) Rotating drive apparatus
KR101755513B1 (en) Vehicular headlamp actuating device
WO2018198912A1 (en) Container box and lighting device
CN111868440B (en) Motorized recessed spotlight with a toothed rack for rotation about a longitudinal axis
US8794807B2 (en) Vehicle lamp steering mechanism using gear transmission
JP2015233246A (en) Vehicular telescopic speaker structure
EP3061654B1 (en) Vehicular active stop and tail lamp module
WO2018199088A1 (en) Drive device and illumination device
JP2009026763A (en) Vehicular internal lighting corrector, and lighting and/or signaling device
WO2023085227A1 (en) Actuator and actuator assembly method
JP2006193144A (en) Headlight provided with levelling actuator of short size
KR0173817B1 (en) Headlamp aiming device
US20170314755A1 (en) Rotary light module
US20150184820A1 (en) Head lamp for vehicle
KR101413061B1 (en) Head lamp for vehicles
KR100585997B1 (en) Clutch structure of automotive mirror adjustment mechanism
US9523474B2 (en) Headlamp for vehicle
CN214154253U (en) Anti-interference dimming motor
JP6736514B2 (en) Drive device and lighting device
JP6736515B2 (en) Drive device and lighting device

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant