Actuator for electric ventilation opening of automobile

Abstract

The present invention relates to an actuator for an electric vent of an automobile, and more particularly, to an actuator for an electric vent of an automobile, which can prevent a gear portion and a motor from being deformed and damaged by an external force applied to an operation knob even when the operation knob is subjected to an external force. In order to achieve the purpose, the present invention comprises: a forward / reverse rotation motor (100) which is driven by a signal output by a control device (500) and generates a driving force to continuously rotate a shaft (600) in the forward / reverse direction; an input gear (110) that rotates in one side direction and the other side direction in accordance with the rotation direction of a shaft (600) according to the driving force generated by the forward / reverse rotation motor (100); a reduction gear unit (200) that receives the rotational force transmitted through the input gear (110) and rotates in one direction and the other direction; and a slide gear section (300) that receives the rotational force transmitted by the reduction gear section (200) and rotates in one side and the other side, the slide gear section (300) comprising: a slide housing (310) in which a first coupling groove (311) and a second coupling groove (312) are formed in communication with each other on the left and right sides, and in which serrated teeth (313) that mesh with the reduction gear section (200) are formed on the outer peripheral surface; a sliding shaft (320), one side of which is inserted into a first coupling groove (311) formed in the sliding housing (310); the sliding rubber (340) is fixedly arranged between the sliding shaft (320) and the inner side surface of the first combination groove (311); a sliding bush (330) that is inserted into and inserted into the first coupling groove (311) in which the sliding rubber (340) is provided so that the other side part of the sliding bush (330) is pushed into and pulled out of the second coupling groove (312) so as to selectively achieve key-groove-type assembly and separation on one side part of a sliding shaft (320) that is inserted through the first coupling groove (311) in which the sliding rubber (340) is provided; and a housing (400) that keeps the slide housing (310) and the reduction gear part (200) in a state in which one side of the slide bush (330) and the other side of the slide shaft (320) are pulled out to the outside in a state in which the slide housing (310) and the reduction gear part (200) are interlocked with each other.

Description

Technical Field

[0001] The present invention relates to an electric vent actuator for a car, and more particularly to an electric vent actuator for a car which can prevent a gear part and a motor from being deformed and damaged by the external force applied to the operating knob even when the operating knob is subjected to the external force. Background Art

[0002] Generally, the vents for exhausting air into the vehicle through the operation of the automobile air conditioning device include a central vent installed on the center console panel between the driver's seat and the front passenger seat, and a side vent installed on the anti-collision pad in front of the driver's seat and the front passenger seat.

[0003] This air vent is composed of multiple horizontal wings, vertical wings and operating knobs for operating them, and is installed on the center console panel or anti-collision pad for use.

[0004] However, the existing vents have the following problems: the horizontal wings installed at the outlet of the air duct for adjusting the wind direction in the up and down directions and the vertical wings arranged at the rear of the horizontal wings for adjusting the wind direction in the left and right directions can only be adjusted by the driver manually operating the operating knob.

[0005] Therefore, in order to solve the above-mentioned existing problems, electric vents have been developed and used in the past. That is, if the driving motor is driven forward or reversely by operating the switch, the driving force of the motor is received by the gears, so that the horizontal and vertical wings rotate to one side or the other and adjust the wind direction.

[0006] However, in the case of actuators used for existing electric vents, when a vehicle occupant applies external force by holding an operating knob in order to manually adjust the wind direction, the external force applied by the operating knob may cause deformation and damage to the gear portion and the motor, thereby resulting in high replacement and repair costs, and bringing about problems such as expensive maintenance costs.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent Document 1: Korean Patent Application No. 10-2018-0092227 Summary of the invention

[0010] Technical issues

[0011] The object of the present invention is to provide an actuator for an electric vent of an automobile in order to solve the above-mentioned existing problems, that is, even when a passenger in the automobile holds an operating knob and applies external force to manually adjust the wind direction, the gear part and the motor can be prevented from being deformed and damaged due to the external force applied to the operating knob.

[0012] Technical Solution

[0013] In order to achieve the above-mentioned purpose, the present invention includes: a forward and reverse motor 100, which is driven by a signal output by a control device 500 to generate a driving force to make the shaft 600 rotate continuously in the forward and reverse directions; an input gear 110, which rotates on one side and the other side according to the driving force generated by the forward and reverse motor 100 along the rotation direction of the shaft 600; a reduction gear part 200, which receives the rotation force transmitted by the input gear 110 and rotates on one side and the other side; and a sliding gear part 300, which receives the rotation force transmitted by the reduction gear part 200 and rotates on one side and the other side, and the sliding gear part 300 includes: a sliding housing 310, which is connected to the left and right sides and has a first coupling groove 311 and a second coupling groove 312, and is formed on the outer peripheral surface with a first coupling groove 311 and a second coupling groove 312. The serrated teeth 313 meshing with the reduction gear portion 200; the sliding shaft 320, one side of which is inserted into the first coupling groove 311 formed in the sliding housing 310; the sliding rubber 340, which is fixedly arranged between the sliding shaft 320 and the inner side surface of the first coupling groove 311; the sliding bushing 330, which selectively realizes keyway-type assembly and separation on one side of the sliding shaft 320 so that the other side is pushed in and out of the second coupling groove 312, and the sliding shaft 320 is inserted through the first coupling groove 311 provided with the sliding rubber 340; and the housing 400, when one side of the sliding bushing 330 and the other side of the sliding shaft 320 are pulled out to the outside, the sliding housing 310 and the reduction gear portion 200 maintain a state of mutual linkage.

[0014] On the other hand, the sliding rubber 340 is formed in a bellows shape to maintain a specified overlapping state between the outer side surface of one side of the sliding shaft 320 and the inner wall surface of the first coupling groove 311 of the sliding housing 310, thereby effectively generating static friction torque and absorbing slight dimensional changes, so that the operation of inserting the sliding shaft 320 into the first coupling groove 311 becomes easier.

[0015] Furthermore, at the outer side of one side of the sliding shaft 320 inserted into the first coupling groove 311, a fixing portion 321 is formed at the upper and lower parts, the outer side surface of which contacts the sliding rubber 340 and generates a specified friction torque, and a variable torque portion 322 is formed between the fixing portion 321 and the fixing portion 321, which opens left and right and generates a variable torque. A key 323 is formed at the end of one side of the sliding shaft 320 where the variable torque portion 322 and the fixing portion 321 are formed at the outer side, so that the assembly and separation of the sliding bushing 330 on one side of the sliding shaft 320 in a keyway manner becomes easier. More preferably, when the variable torque portion 322 enters the overlapping interval, it opens outward and generates a sliding phenomenon, so that the sliding shaft can idle.

[0016] On the other hand, the first coupling groove 311 formed by inserting the sliding housing 310 into one side of the sliding shaft 320 is located between the variable torque part 322 and the fixed part 321 , and the outer diameters of the left and right sides are smaller than those of the upper and lower parts, thereby forming an overlapping generation interval.

[0017] This indicates that when the variable torque portion 322 enters the overlapping interval, it opens outward and generates a sliding phenomenon, so that the sliding shaft can rotate idly.

[0018] Furthermore, an insertion groove 331 for inserting a key is formed in the other side portion of the sliding bushing 330 that is inserted and engaged with the second engaging groove 312 of the sliding housing 310, which indicates that when the sliding shaft 320 with one side portion inserted into the first engaging groove 311 of the sliding housing 310 rotates in one direction and the other direction, the sliding bushing 330 will also receive the rotational force and rotate in one direction and the other direction.

[0019] Effects of the Invention

[0020] According to the present invention, when the passengers in the vehicle hold the operating knob to apply external force in order to manually adjust the wind direction, the sliding gear part will slide, preventing the reduction gear part and the motor from being deformed and damaged due to the external force applied to the operating knob, making the maintenance and repair of the vehicle convenient, which is a very practical invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded perspective view showing the structure of the electric vent actuator for an automobile according to the present invention.

[0022] Figure 2 It is a perspective view showing an assembled state of the electric vent actuator for a vehicle according to the present invention.

[0023] Figure 3 It is a cross-sectional view showing an assembled state of the sliding gear portion for an actuator according to the present invention.

[0024] Figure 4 It is a perspective view showing an assembled state of the sliding gear portion for an actuator according to the present invention.

[0025] Figure 5 This is an exploded perspective view showing the assembled state of the sliding shaft and the sliding bushing for the actuator of the present invention.

[0026] Figure 6 This is an assembly cross-sectional view showing an assembled state of the sliding gear unit for an actuator according to the present invention.

[0027] Figure 7 It is a perspective view showing the meshing state of the sliding gear portion and the reduction gear portion of the present invention.

[0028] Figure 8 This is a perspective view showing an exploded state of a sliding bush in a sliding gear unit for an actuator according to the present invention.

[0029] Fig. 9 for Figure 3 A cross-sectional view along the A-A' line.

[0030] Fig.10 This is an enlarged cross-sectional view showing a state where a sliding rubber is mounted on a sliding gear portion for an actuator according to the present invention.

[0031] Fig.11 This is a perspective view showing a sliding shaft for an actuator according to the present invention.

[0032] Fig.12 It is a side view showing the sliding shaft for an actuator according to the present invention.

[0033] Fig.13 for Fig.12 Cross-sectional view along line BB'. DETAILED DESCRIPTION

[0034] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them.

[0035] Furthermore, the present invention can be implemented in other forms different from the shapes presented in the embodiments of the present invention, and is not limited to the embodiments described herein.

[0036] It should be noted that the drawings are schematic and not drawn to scale.

[0037] Figure 1 This is an exploded perspective view showing the structure of the electric vent actuator for an automobile according to the present invention. Figure 2 1 is a perspective view showing an assembled state of the electric vent actuator for a vehicle according to the present invention. Figure 3 2 is a cross-sectional view showing an assembled state of a sliding gear portion for an actuator of the present invention. Figure 4 1 is a perspective view showing an assembled state of a sliding gear portion for an actuator of the present invention. Figure 5 This is an exploded perspective view showing the assembly state of the sliding shaft and the sliding bushing for the actuator of the present invention. Figure 6 This is an assembly cross-sectional view showing an assembled state of the sliding gear portion of the actuator of the present invention. Figure 7 1 is a perspective view showing the meshing state of the sliding gear portion and the reduction gear portion of the present invention. Figure 8 This is a perspective view showing an exploded state of a sliding bush in a sliding gear portion for an actuator of the present invention. Fig. 9 for Figure 3 A-A' line cross-sectional view, Fig.10This is an enlarged cross-sectional view showing a state where a sliding rubber is installed on a sliding gear portion of an actuator according to the present invention. Fig.11 This is a perspective view showing a sliding shaft for an actuator of the present invention. Fig.12 1 is a side view showing a sliding shaft for an actuator of the present invention. Fig.13 for Fig.12 Cross-sectional view along line BB'.

[0038] like Figures 1 to 13 As shown, the electric vent actuator for a car of the present invention includes: a forward and reverse motor 100, which is driven by a signal output by a control device 500 to generate a driving force to make the shaft 600 rotate continuously in the forward and reverse directions; an input gear 110, which rotates in one direction and the other direction along the rotation direction of the shaft 600 according to the driving force generated by the forward and reverse motor 100; a reduction gear part 200, which receives the rotation force transmitted by the input gear 110 and rotates in one direction and the other direction; and a sliding gear part 300, which receives the rotation force transmitted by the reduction gear part 200 and rotates in one direction and the other direction, and the sliding gear part 300 includes: a sliding housing 310, which is connected to the left and right sides and has a first coupling groove 311 and a second coupling groove 312, and is formed on the outer peripheral surface A serrated tooth 313 is formed to mesh with the reduction gear portion 200; a sliding shaft 320, one side of which is inserted into a first coupling groove 311 formed in the sliding housing 310; a sliding rubber 340 is fixedly arranged between the sliding shaft 320 and the inner side surface of the first coupling groove 311; a sliding bushing 330 is selectively assembled and separated at one side of the sliding shaft 320 in a keyway-type manner so that the other side is pushed in and out of the second coupling groove 312, and the sliding shaft 320 is inserted through the first coupling groove 311 provided with the sliding rubber 340; and a housing 400, which keeps the sliding housing 310 and the reduction gear portion 200 in a mutually linked state when one side of the sliding bushing 330 and the other side of the sliding shaft 320 are pulled outward.

[0039] On the other hand, the sliding rubber 340 is formed in a bellows shape.

[0040] Furthermore, on the outer side of one side of the sliding shaft 320 inserted into the first coupling groove 311, a fixing portion 321 is formed at the upper and lower parts, and the outer side surface contacts the sliding rubber 340 and generates a specified friction torque. A variable torque portion 322 is formed between the fixing portions 321 and the fixing portions 321, and is opened to the left and right and generates a variable torque. A key 323 is formed at the end of one side of the sliding shaft 320 on the outer side where the variable torque portion 322 and the fixing portion 321 are formed.

[0041] On the other hand, the first coupling groove 311 formed by inserting the sliding housing 310 into one side of the sliding shaft 320 is located between the variable torque part 322 and the fixed part 321 , and the outer diameters of the left and right sides are smaller than those of the upper and lower parts, thereby forming an overlapping generation interval.

[0042] Also, an insertion groove 331 for inserting a key is formed recessed at the other side of the sliding bushing 330 that is inserted and coupled to the second coupling groove 312 of the sliding housing 310 .

[0043] As described above, the signal output by the control device 500 of the present invention causes the forward and reverse motor 100 to generate a driving force in the forward and reverse directions, so that the input gear 110 is combined with the shaft 600 rotating in one direction and the other direction. The input gear 110 is meshed with a side gear constituting the reduction gear part 200. The reduction gear part 200 is rotatably arranged in the housing 400 with the shaft 600 as the center. The other side gear constituting the reduction gear part 200 is meshed with the serrated teeth 313 formed on the outer peripheral surface of the sliding housing 310 constituting the sliding gear part 300.

[0044] On the other hand, when the sliding rubber 340 formed in a bellows shape is inserted into the first coupling groove 311 formed in the sliding housing 310, one side of the sliding shaft 320 is inserted and coupled to the second coupling groove 312, so that the other side of the sliding bushing 330 is inserted into the second coupling groove 312, so that the one side of the sliding shaft 320 inserted and coupled in the manner of being inserted into the second coupling groove 312 is selectively assembled with the other side in a keyway manner, thereby simultaneously transmitting the driving force of the motor 100.

[0045] Of course, if the sliding bushing 330 is not inserted and coupled to the second coupling groove 312 , the driving force of the forward and reverse motor 100 is only transmitted to the sliding shaft 320 .

[0046] Thus, according to the driving force generated by the forward and reverse motor 100 , the sliding shaft 320 or the sliding bush 330 receives the driving force and rotates in one direction and the other direction.

[0047] On the other hand, if external force is applied to the sliding shaft 320 or the sliding bushing 330, the sliding shaft or the sliding bushing 330 will rotate in the direction of the external force, and the sliding shaft 320 will generate idling and sliding due to the overlapping generation interval between the variable torque part 322 and the fixed part 321 formed in the first coupling groove 311 of the sliding housing 310, thereby preventing the reduction gear part 200 and the forward and reverse motor 100 from being damaged due to the external force applied to the sliding shaft 320 or the sliding bushing 330.

[0048] It should be understood that the embodiments described above are exemplary embodiments in all aspects and not restrictive embodiments. In the detailed description, the scope of the present invention should be represented by the scope of protection of the invention described later, and the meaning, scope of the scope of protection of the invention and all changes or modifications based on its equivalent concepts should be interpreted as being included in the scope of the present invention.

[0049] Description of Reference Numerals

[0050] 100: Forward and reverse motor

[0051] 110: Input gear

[0052] 200: Reduction gear unit

[0053] 300: Sliding gear part

[0054] 310: Sliding housing

[0055] 311: First binding groove

[0056] 312: Second binding slot

[0057] 313: Tooth

[0058] 320: Sliding shaft

[0059] 330: Sliding bushing

[0060] 340: Sliding rubber

[0061] 400: Shell

[0062] 500: Control device

[0063] 600: Axis

Claims

1. An actuator for an electric vent of an automobile, characterized in that: include: The forward and reverse motor (100) is driven by a signal output by the control device (500) to generate a driving force to make the shaft (600) rotate continuously in the forward and reverse directions; The input gear (110) rotates in one direction and the other direction according to the driving force generated by the forward and reverse motor (100) and the rotation direction of the shaft (600); The reduction gear part (200) receives the rotation force transmitted by the input gear (110) and rotates in one direction and the other direction; and The sliding gear part (300) receives the rotation force transmitted by the reduction gear part (200) and rotates in one direction and the other direction. The sliding gear part (300) comprises: The sliding housing (310) has a first coupling groove (311) and a second coupling groove (312) formed in communication on the left and right sides, and has sawtooth-shaped teeth (313) formed on the outer peripheral surface thereof for meshing with the reduction gear part (200); A sliding shaft (320), one side of which is inserted into a first coupling groove (311) formed in the sliding housing (310); A sliding rubber (340) is fixedly arranged between the sliding shaft (320) and the inner side surface of the first coupling groove (311); A sliding bushing (330) is selectively assembled and separated in a keyway manner on one side of a sliding shaft (320) so that the other side is pushed in and out of the second coupling groove (312), and the sliding shaft (320) is inserted through the first coupling groove (311) provided with the sliding rubber (340); and The housing (400) keeps the sliding housing (310) and the reduction gear part (200) in a state of being linked to each other when one side of the sliding bushing (330) and the other side of the sliding shaft (320) are pulled outward.

2. The electric vent actuator for a vehicle according to claim 1, characterized in that: The sliding rubber (340) is formed in a bellows shape.

3. The electric vent actuator for a vehicle according to claim 1, characterized in that: On the outer side of one side of the sliding shaft (320) inserted into the first coupling groove (311), a fixing part (321) is formed at the upper and lower parts, the outer side surface of which contacts the sliding rubber (340) and generates a specified friction torque, and a variable torque part (322) is formed between the fixing parts (321) and the fixing parts (321) and is opened to the left and right and generates a variable torque. A key (323) is formed at the end of one side of the sliding shaft (320) on the outer side where the variable torque part (322) and the fixing part (321) are formed.

4. The electric vent actuator for a vehicle according to claim 1, characterized in that: A first coupling groove (311) formed by inserting a coupled sliding housing (310) into one side of the sliding shaft (320) is located between the variable torque portion (322) and the fixed portion (321), and the outer diameters of the left and right sides are smaller than the outer diameters of the upper and lower parts, thereby forming an overlapping generation interval.

5. The electric vent actuator for a vehicle according to claim 1, characterized in that: An insertion groove (331) for inserting a key is formed in a recessed manner on the other side of the sliding bushing (330) that is inserted and coupled with the second coupling groove (312) of the sliding housing (310).

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