KR200489020Y1

KR200489020Y1 - Actuator apparatus having damping means

Info

Publication number: KR200489020Y1
Application number: KR2020170006207U
Authority: KR
Inventors: 김형하; 최정순; 강인철; 이진석
Original assignee: 계양전기 주식회사
Priority date: 2017-12-01
Filing date: 2017-12-01
Publication date: 2019-04-18

Abstract

The present invention relates to an actuator device provided with damping means. The present invention relates to a control apparatus for a vehicle, comprising: a housing having an installation space formed therein; power means provided in the installation space and provided with a motor to provide a turning force; A decelerating means for decelerating the rotation of the rotor shaft of the power means to transmit the decelerated rotation to the cooperating shaft of the operating means; And a damping means which is made of a material having elasticity to elastically support the end portion of the rotor shaft and reduce the clearance. In the present invention, the end portion of the rotor shaft is not supported by the set screw but is supported by damping means made of an elastic material. Since the damping means elastically supports the end portion of the rotor shaft, the operation of precisely assembling a separate set screw to reduce the axial clearance of the rotor shaft can be omitted.

Description

[0001] The present invention relates to an actuator apparatus having damping means,

The present invention relates to an actuator device, and more particularly, to an actuator device in which a rubber damping means is mounted on an actuator for tilting and telescoping operation of a steering column.

In order to improve the safety of the vehicle and to facilitate the operation of the driver, various devices are installed in the vehicle. Among them, the steering device is a device that allows the driver to freely change the traveling direction of the vehicle by turning the steering wheel. So that the driver can advance the vehicle in a desired direction.

Recently, as the concept of automobiles has changed with the increase of income and the improvement of living standards, the existing simple transportation system is now becoming a living space. In addition, as the time spent in the automobile increases, the development of a more comfortable and comfortable automobile is required, and thus the quality of various devices is rapidly increasing. As one of such trends, mounting of a tilt and telescopic steering apparatus using a driving motor that adjusts a relative position of a steering wheel to a driver is gradually expanded so that a driver can easily operate the steering wheel while comfortably operating.

Here, the motor-driven steering column system using a driving motor means that the position of the steering wheel used in a passenger car is adjusted by the driving force of the motor, and the tilt operation And telescope manipulation.

First, the tilting operation is to adjust the steering angle of the steering wheel in accordance with the posture of the driver sitting on the driver's seat. The telescope operation is performed by increasing or decreasing the length of the steering column to match the driver's body shape, .

An actuator including a motor is used as an apparatus for such tilt and telescopic manipulation. A separate gearbox can be combined with the actuator to provide a deceleration function, which allows strong torque and smooth operation.

Inside the actuator, a set screw is used to support the rotation shaft and reduce the clearance of the shaft. The set screw supports one end of the rotary shaft. The set screw must also bear the external force applied in the axial direction. For example, when a strong external force is applied to the steering device in a state where the actuator is assembled in the steering device, such an external force is transmitted to the set screw through the rotation shaft of the actuator.

However, such a set screw needs to be separately assembled to the actuator, and since the clearance between the set screw and the rotating shaft must be adjusted appropriately, precise work is required. Therefore, the assembling of the set screw has a problem of poor workability.

The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to replace a conventional set screw with a duster damper to omit a separate set screw assembly operation.

According to an aspect of the present invention for achieving the above object, the present invention provides a motorcycle comprising: a housing having a mounting space formed therein; power means provided in the mounting space and provided with a motor to provide rotational force; An operating means that is installed in parallel with the power means and that converts the rotational motion into a linear motion while rotating by the rotational force transmitted from the power means; and a control means that decelerates the rotation of the rotational axis of the power means to transmit to the interlocking shaft of the operating means And damping means provided in the installation space and supporting the end portion of the rotor shaft of the power means but made of an elastic material so as to elastically support the end portion of the rotor shaft and reduce the clearance, The damping means comprises a rubber damper made of an elastic material and installed at an end portion of the housing space of the housing, Located between the damper and the end portion of the rotor shaft includes a thrust plate for supporting the rotor shaft, an outer surface of the thrust plate facing the rubber damper is in close contact with the stone projecting portion is brought into close contact with the rubber damper.

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The rubber damper has a cylindrical shape, and the thrust plate has a disc shape having a diameter larger than that of the rubber damper.

In the rubber damper, an opening channel is penetrated along a direction supporting the rotor shaft.

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The housing adjacent to the damping means is provided with honeycomb-shaped dispersion reinforcing ribs to disperse an external force applied to the rotary shaft transmitted through the damping means.

At least a part of the rubber damper of the damping means is located in the seating groove in the installation space of the housing, and an empty space is formed between the remaining part of the rubber damper coming off the seating groove and in contact with the thrust plate, and the inner surface of the installation space.

The following effects can be expected by the present invention as described above.

In the present invention, the end portion of the rotor shaft is not supported by the set screw but is supported by damping means made of an elastic material. Since the damping means elastically supports the end portion of the rotor shaft, it is possible to omit an operation of precisely assembling a separate set screw to reduce the axial clearance of the rotor shaft, thereby improving workability.

Particularly, since the damping means is made of an elastic material, it can cope with various axial tolerances. Therefore, since it is not necessary to work to reduce the clearance in accordance with the clearance tolerance generated in the assembling or production process, work by an expert can be omitted, and as a result, work hours and working time can be reduced.

In the present invention, the housing adjacent to the damping means has a honeycomb-shaped dispersion reinforcing rib, which effectively disperses the external force transmitted from the rotor shaft to the damping means. Accordingly, durability and stability of the entire actuator including the housing are improved.

1 is a perspective view showing a configuration of a tilt operation device to which an embodiment of an actuator device provided with damping means according to the present invention is applied.
Fig. 2 is a perspective view showing a connection structure between a motor shaft and deceleration means constituting the present invention; Fig.
Fig. 3 is an exploded perspective view showing the structure of the damping means constituting the present invention in an exploded manner; Fig.
4 is a sectional view taken along the line I-I 'in Fig.
5 is a perspective view showing a shape of a housing main body constituting the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not conceived.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) can be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be " connected, " " coupled, " or " connected. &Quot;

An actuator device (hereinafter referred to as an "actuator device") provided with damping means according to the present invention can be used as an actuator for tilting and telescopic operation of a steering device. Hereinafter, the actuator for the tilting operation of the steering apparatus will be described as an example.

When the interlocking shaft 65, which will be described below, is rotated, the output nut 80 is moved linearly while the hinge And finally rotates the steering device. As a result, the actuator device according to the present invention enables the linear movement of the output nut 80.

The structure of the present invention can be largely divided into a power unit 30, an operation unit 60 and a deceleration unit G. [ This is divided by function of each constitution, and it is not precisely classified by each constituent element. For example, some of the deceleration means (G) may be shared with the power means (30) and the operation means (60). 1, the operation of the power means 30 is in the direction of arrow 1, and the rotation of the deceleration means G in the direction orthogonal thereto is made in the direction of arrow 2, The power passing through the means G is transmitted to the operating means 60 to cause the operating means 60 to rotate in the direction of arrow ③. Finally, the output nut 80 is linearly moved in the direction of arrow 4 (see Fig. 1).

The appearance and skeleton of the present invention are formed by the housing 10. The housing 10 is located between the power means 30 and the operating means 60 and has a deceleration means G therein. At least a part of the power means (30) and at least a part of the operating means (60) are installed inside the housing (10). That is, in the present invention, the housing 10 is composed of the housing main body 21 and the housing cover 11, and the power unit 30, the operating unit 60, Means G can be installed. The housing 10 may be made of a lightweight plastic insert, or it may be made of die casting.

1, the housing main body 21 has a substantially cuboid shape close to a hexahedron, and the power means 30 and the operating means 60 are extended in parallel with each other do. As described below, the interlocking shaft 65 of the operating means 60 is exposed to the outside, but the rotor shaft 45 of the power means 30 is not exposed to the outside. When the housing main body 21 and the housing cover 11 are separated from each other, the installation space is exposed inside. In the installation space, the interlocking shaft 65, the rotor shaft 45, Respectively.

A mounting bracket 25 is provided on one side of the housing 10. The mounting bracket 25 protrudes in one direction from the housing main body 21 so that the actuator of the present invention can be fixed at a specific position. To this end, the mounting bracket 25 is formed with a bracket hole (not shown).

Referring to FIG. 4, a damping housing 27 protrudes from the end of the housing main body 21, and a seating groove 28 is inserted into the damping housing 27. The seating groove 28 is provided with a rubber damper 53 of the damping means described below. Since the damping means including the rubber damper 53 is located inside the damping housing 27, it is not exposed to the outside.

As shown in FIG. 5, the housing 10 has a dispersion reinforcing rib 29. The dispersion reinforcing ribs 29 are continuously connected with a honeycomb-shaped concave-convex structure on the outer surface of the housing main body 21. The dispersion reinforcing ribs 29 are connected to a position adjacent to the damping housing 27. This structure can serve to disperse the external force applied to the rotor shaft transmitted through the damping means. Of course, the dispersion reinforcing ribs 29 also serve to enhance the strength and durability of the entire housing 10. The dispersion reinforcing ribs 29 are formed in such a manner that the relatively protruding portions and the recessed portions 29 'which are relatively recessed are continuously connected.

Next, the power means 30 will be described. The power means 30 is installed in the left-right direction of the housing 10 and is provided with a motor to provide a turning force. The power means 30 is largely composed of a yoke assembly, an armature assembly, and a brush card assembly.

Inside the yoke case 31 constituting the yoke assembly, there are a rotor shaft 45, a permanent magnet, and a brush card assembly. The brush card assembly transmits an externally applied current to the rotor of the armature assembly through the main power supply unit 51, and the brush is configured to contact the commutator. When the commutator on the rotor shaft 45 maintains contact with the brush in the state where the assembling of the power means 30 is completed, the contact surface of the commutator is brought into contact with the outer end of the rotor shaft 45 and a region adjacent to the bearing (not shown) Located. The main power unit 51 may be regarded as a kind of connector.

A drive gear 48 is provided on the rotor shaft 45 of the armature assembly. The driven gear 68 is engaged with the first reduction gear 108 of the deceleration means G in the present embodiment so that the drive gear 48 is engaged with the deceleration means G together with the driven gear 68. In this embodiment, All. The driving gear 48 rotates together with the rotor shaft 45, and is engaged with the first reduction gear 108 to rotate to decelerate. In this embodiment, the driving gear 48 is a worm, and the first reduction gear 108 engaged with the worm gear is a worm gear. The drive gear 48 may also be seen as part of the deceleration means G.

A part of the front portion of the rotor shaft 45 of the power unit 30 is accommodated in the installation space of the housing 10. [ More precisely, a part of the front portion of the rotor shaft 45 is located inside the housing 10, and the most protruding portion is connected to the deceleration means G. [ More precisely, the front portion of the rotary shaft 45 is engaged with the first reduction gear 108 of the deceleration means G. [

The rotor shaft 45 is supported by damping means. The damping means is installed in the installation space and supports an end portion of the rotor shaft 45 of the power means but is made of an elastic material so as to elastically support the end portion of the rotor shaft 45 and reduce the clearance . The damping means is composed of a plurality of parts as described below, and is located inside the installation space of the housing 10 without being exposed to the outside.

3 and 4, the damping means mainly comprises a rubber damper 53 and a thrust plate 54. The rubber damper 53 is made of an elastic material and is installed at the end of the installation space of the housing 10. The thrust plate 54 is disposed between the rubber damper 53 and the end portion of the rotor shaft 45 And supports the rotor shaft 45. As a result, the rotor shaft 45, the thrust plate 54, and the rubber damper 53 are positioned in this order.

The rubber damper 53 has a cylindrical shape, and an opening channel 53 'penetrates the rubber damper 53 along a direction supporting the rotor shaft. The opening channel 53 'is a kind of ventilation hole for allowing the air to escape during the compression of the rubber damper 53. The opening channel 53 'completely penetrates the rubber damper 53. The rubber damper 53 is made of an elastic material such as a rubber material. When the external force is applied, the rubber damper 53 is elastically deformed. When the external force is removed, the rubber damper 53 can be restored to a circular shape.

4, when the rubber damper 53 is installed in the installation space, one side of the rubber damper 53 is supported at the end of the installation space, and the other side of the rubber damper 53 protrudes into the installation space and is in close contact with the thrust plate 54. At least a part of the rubber damper 53 of the damping means is located in the seating groove 28 in the installation space of the housing and is separated from the seating groove 28 to be in close contact with the thrust plate 54, And an empty space is formed between the inner surface and the inner surface. Therefore, the front portion closely attached to the thrust plate 54 can be elastically deformed to some extent in the direction of increasing the diameter because it is displaced from the seating groove 28 inside the installation space.

The thrust plate (54) is in the form of a disk having a larger diameter than the rubber damper (53). The thrust plate 54 may have a polygonal shape so that it is not arbitrarily rotated, or may have a plurality of protruding portions at the edges as shown in FIG. Unlike the rubber damper 53, the thrust plate 54 can be made of a relatively hard material. In this embodiment, the thrust plate 54 is a synthetic resin material. If the thrust plate 54 is omitted, the end portion of the rotor shaft 45 is directly connected to the rubber damper 53. Due to the material of the rubber damper 53, a large frictional force is generated during the rotation of the rotor shaft 45 . Therefore, the thrust plate 54 is positioned between the rotor shaft 45 and the rubber damper 53 to prevent this.

A contact projection 54 'protrudes from the outer surface of the thrust plate 54 facing the rubber damper 53. The contact protrusion 54 'is a portion which is substantially in contact with the rubber damper 53 and protrudes for more secure contact with the rubber damper 53. The contact protrusion 54 'has a flat outer surface, so that the contact area with the rubber damper 53 can be widened.

As described above, the housing adjacent to the damping means is provided with honeycomb-shaped dispersed reinforcing ribs 29, so that the external force applied to the rotor shaft transmitted through the damping means can be dispersed.

On the other hand, a thrust bush 55 is coupled to the end of the rotor shaft 45. The thrust bushing 55 is assembled so as to surround the end portion of the rotor shaft 45 to fill the gap between the rotor shaft 45 and the inner surface of the installation space. So that it can be rotated more smoothly. Reference numeral 55 'denotes a bush hole into which the rotor shaft 45 is fitted.

Next, the operation means (60) receives the rotational force of the power means (30) and rotates to convert rotational motion into linear motion of the output nut (80). The operating means (60) is installed in the housing (10) in a direction parallel to the power means (30).

The operating means 60 is rotated in conjunction with the rotation of the rotor shaft 45 and has a rotation axis parallel to the rotor shaft 45 and at least a part thereof is located inside the installation space of the housing 10 And has an interlocking shaft 65. As a result, the interlocking shaft 65 has a rotation axis parallel to the rotor shaft 45. At least a part of the interlocking shaft 65 is located inside the housing 10, more precisely, inserted through one opening in the installation space, and a part of the end portion extends toward the installation through hole (not shown) .

A part of the front portion of the interlocking shaft 65 of the operating means 60 is accommodated in the installation space of the housing 10 so that the most projecting portion is engaged with the first reduction gear 108 of the deceleration means G . As a result, the deceleration means G is connected to the power means 30 and the operating means 60, and deceleration is performed through the deceleration means G. [

As described above, in the present invention, both the rotor shaft 45 and the interlocking shaft 65 are located inside the single housing 10. Accordingly, the rotor shaft 45 and the interlocking shaft 65 may be formed of two separated housings 10, or the shaft clearance may be smaller than that of an actuator having a separate gear box, and the operation reliability can be improved. In other words, since it is not necessary to assemble the gear box, which is a separate piece, to the motor and the interlocking shaft 65, not only the assembling property is improved, but also the intertwining occurring during the assembling process is prevented.

The driven shaft 65 is provided with a driven gear 68. The driven gear 68 is engaged with the interlocking shaft 65 and is rotated together to engage with the second reduction gear 118 of the reduction gear G. [ The driven gear 68 makes the rotating direction of the interlocking shaft 65 parallel to the rotating direction of the rotor shaft 45 in conjunction with the second reduction gear 118 of the speed reducing means G. [ To this end, in this embodiment, the driven gear 68 is a worm gear, and the second reduction gear 118 is a worm engaged with the worm gear. The drive gear 48 and the driven gear 68 may be considered to constitute a part of the deceleration means G. [

An output nut 80 is coupled to the interlocking shaft 65. The output nut 80 linearly moves along the interlocking shaft 65 to perform a tilting function of the steering apparatus. Although not shown, there is a nut screw on the inner side of the output nut 80 corresponding to the lead screw of the interlocking shaft 65. The output nut 80 linearly moves along the interlocking shaft 65 while the lead screw and the nut screw rotate. Since the output nut 80 is connected to the outer bracket, it can move linearly without rotating along the interlocking shaft 65. For reference, the interlocking shaft 65 itself may be regarded as a lead screw.

The decelerating means G is a means for reducing the rotational speed of the power means 30 and increasing the size of the power source. The decelerating means G is provided in the installation space of the housing main body 21 in a vertical direction 1). The deceleration means G includes a plurality of gears to decelerate driving of the power means 30 and transmit the decelerated means G to the operating means 60.

2, the deceleration means G includes a first reduction gear 108 and a second reduction gear 108 disposed on the lower portion and the upper portion of the reduction shaft 100 on the basis of the reduction shaft 100 installed in the installation space of the housing main body 21, A reduction gear 118 is provided. The first reduction gear 108 is installed on the reduction shaft 100 and rotates in engagement with the driving gear 48 provided on the rotor shaft 45 of the power unit 30. The driving gear 48 is a worm The first reduction gear 108 is a worm gear. Accordingly, deceleration is performed between the driving gear 48 and the first reduction gear 108. Here, the reduction ratio is determined according to the gear ratio of the drive gear 48, which is the worm, and the first reduction gear 108, which is the worm gear.

The second reduction gear 118 is installed on the reduction shaft 100 at a height different from that of the first reduction gear 108. The second reduction gear 118 is connected to a driven gear 68). Here, the second reduction gear 118 is a worm and the driven gear 68 is a worm gear. Therefore, deceleration is performed again between the second reduction gear 118 and the driven gear 68. Here, the reduction ratio is determined according to the gear ratio of the second reduction gear 118, which is the worm, and the driven gear 68, which is the worm gear.

As a result, deceleration is performed through the deceleration means G constituting the present invention, and the deceleration is performed through the deceleration means G between the driving gear 48 and the first reduction gear 108 and between the second reduction gear 118 and the driven gear 68 Stage deceleration structure in which deceleration is performed. Therefore, the interlocking shaft 65 can have a large torque, which enables smooth and smooth operation of the output nut 80.

At the lower end and the upper end of the deceleration means G, there are rotating base plates 101 and 102, respectively. These serve to rotatably support the lower end and the upper end of the reduction shaft 100 of the deceleration means G and are inserted into the upper and lower ends of the installation space of the housing 10, respectively.

Next, the operation of the actuator according to the present invention will be described.

In view of the function of the actuator according to the operation, as the output nut 80 moves, the bracket (hinge) coupled to the output nut 80 rotates to change the fixing angle of the steering apparatus. The linear movement of the output nut 80 can be naturally performed by the power means 30, the operating means 60 and the decelerating means G provided therebetween.

First, the power means 30 operates. When no electric current is supplied to the brush card assembly through the main power source unit 51, the electric current is transmitted to the rotor of the armature assembly and the shaft of the brush is rotated. The worm, which is the driving gear 48 connected to the rotor shaft 45, is also rotated. The driving gear 48 rotates inside the housing 10 and interlocks with the deceleration means G. [ More precisely, the drive gear 48 is engaged with the first reduction gear 108 of the deceleration means G to rotate the deceleration shaft 100. In this process, first-order deceleration occurs.

When the reduction shaft 100 rotates, the driven gear 68 engaged with the second reduction gear 118 of the reduction shaft 100 rotates. In this process, a second-order deceleration occurs. Therefore, in the present invention, a total of two deceleration occurs due to the deceleration means (G).

The decelerating means G performs two direction changes together with the decelerating function to convert the rotation direction of the rotor shaft 45 and the rotation direction of the interlocking shaft 65 in parallel and reduce the rotation speed to perform a deceleration function . Of course, in this process, the torque increases and the tilt angle of the steering apparatus can be smoothly rotated. In addition, the operating means 60 can be configured parallel to the power means 30 through two turns, thereby reducing the overall size of the actuator.

When the driven gear 68 is rotated, the operating means 60 operates. The operating means 60 is a part which actually operates the steering column, and converts the rotational motion into a linear motion. More precisely, when the interlocking shaft 65 is rotated, the output nut 80 linearly moves along the interlocking shaft 65, and the output nut 80 rotates the bracket (hinge) To adjust.

At this time, the rotor shaft 45 can be reduced in the axial clearance by the damping means. The damping means is located inside the housing 10 to replace the set screw. The rubber damper 53 of the damping means can elastically support the end portion of the rotor shaft 45 to eliminate the clearance between the end of the rotor shaft 45 and the interior of the housing 10. [ In particular, since the damping means is made of an elastic material, it can cope with various axial tolerances. Therefore, it is not necessary to work to reduce the clearance in accordance with the clearance tolerance generated in the assembling or production process, so that work by an expert can be omitted.

In addition, the honeycomb-shaped dispersion reinforcing ribs 29 in the housing adjacent to the damping means can effectively disperse the external force generated in the rotating process of the rotor shaft and transmitted to the damping means.

Meanwhile, the actuator according to the present invention can be equally applied to a configuration for tilting and telescopic operation of a steering column. Although not shown, the actuator may be used as an actuator for telescopic operation. Here, instead of the output nut 80, a telescopic nut is applied. The telescopic nut also linearly moves along the interlocking shaft 65 to allow the steering device to move back and forth. Thus, the actuator according to the present invention can be used in common.

It should be understood that the present invention is not necessarily limited to these embodiments because all of the elements constituting the embodiment according to the present invention are described as being combined or operated as a single unit. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined in the art.

The description above is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in this specification are intended to illustrate and not to limit the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

10: housing 11: housing cover
21: housing main body 30: power means
45: Rotor shaft 53: Rubber damper
54: Thrust plate 55: Thrust bush
60: operating means 65: interlocking shaft
80: Output nut 100: Deceleration axis
108: first reduction gear 118: second reduction gear
G: Deceleration means

Claims

A housing having an installation space formed therein,
Power means provided in the installation space and provided with a motor to provide rotational force,
An operating means which is installed in parallel with the power means in the installation space and converts the rotary motion into a linear motion while being rotated by the rotational force transmitted from the power means;
Deceleration means for decelerating the rotation of the rotor shaft of the power means and transmitting the decelerated rotation to the interlocking shaft of the operation means,
And damping means installed in the installation space to support an end portion of the rotor shaft of the power means and made of an elastic material so as to elastically support an end portion of the rotor shaft while reducing the clearance,
The damping means
A rubber damper made of an elastic material and installed at an end portion of the housing space,
And a thrust plate positioned between the rubber damper and an end portion of the rotor shaft to support the rotor shaft,
And the damping means is provided on the outer surface of the thrust plate facing the rubber damper so as to be in close contact with the rubber damper.

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The actuator device according to claim 1, wherein the rubber damper has a cylindrical shape, and the thrust plate has a circular plate shape having a larger diameter than the rubber damper.

4. The actuator device according to claim 3, wherein the rubber damper is provided with damping means through which an opening channel penetrates along a direction supporting the rotor shaft.

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The damping device according to any one of claims 1, 3 and 4, wherein the housing adjacent to the damping means is provided with honeycomb-shaped dispersion strengthening ribs to disperse an external force applied to the rotor shaft transmitted through the damping means Wherein the damping means comprises a damping means.

[2] The apparatus of claim 1, wherein at least a portion of the rubber damper of the damping means is located in a mounting recess in the installation space of the housing, between the remaining part of the rubber damper contacting the thrust plate and the inner surface of the installation space, Wherein the damping means is formed on the outer circumferential surface.