KR200248034Y1 - Actuator structure for driving air conditioning damper of automobile - Google Patents

Abstract

The present invention relates to an actuator structure for driving an air conditioning damper, and in particular, to transfer the driving force of the worm installed in the drive shaft of the motor to the reduction gear body, and transmits the driving force transmitted to the reduction gear body as an output gear for operating the damper. By simplifying the structure by providing the motor, the reduction gear body and the output gear in the casing, and reducing the number of parts by reducing the number of parts by simplifying the number of power transmission gears which reduce and transmit the speed of the driving motor, The present invention relates to an actuator structure for driving an air conditioner damper in a vehicle which can reduce manufacturing process and improve manufacturing efficiency. The actuator structure for driving the air conditioning damper of the present invention has a motor 10, a worm 50 arranged on a drive shaft of the motor 10, and the worm 50 are engaged with the worm 50. The worm wheel 61 which decelerates the driving force, the reduction gear body 60 formed with the spiral gear portion 62 which is struck with the wheel wheel 61 and transmits the driving force deceleratingly, and is engaged with the reduction gear body 60 for power. The output gear 30, the motor 10, the reduction gear body 60 and the output gear 30 are seated, and the power terminal 80 is provided at one side. A lower casing 40b and an upper casing 40a coupled to an upper portion of the lower casing 40b and having a support hole 42 formed at one side thereof protrude a predetermined portion of the output gear 30.

Description

Actuator structure for air-conditioning damper driving of automobile

The present invention relates to an actuator structure for driving a damper for controlling the amount of cold / hot air in an air conditioner of a vehicle, and in particular, transmits a driving force of a worm installed in a drive shaft of a motor to a reduction gear body, and is transmitted to the reduction gear body. The driving force is transmitted to an output gear for operating the damper, and the motor, the reduction gear body and the output gear are provided in a casing to simplify the structure, and the number of power transmission gears that reduce and transmit the speed of the driving motor is simplified. The present invention relates to an actuator structure for driving air conditioner dampers in a vehicle which can reduce manufacturing costs and reduce manufacturing processes and improve manufacturing efficiency.

In general, an air conditioning module is installed between an instrument panel of an automobile and an engine room, and supplies air for indoor ventilation, as well as cold and warm air, through the ventilator of the instrument panel. Inside the air conditioning module is installed a device that generates cold and warm air, as well as a plurality of dampers to selectively supply the cool and warm air generated from these devices and air from the outside. It is. The damper is a throttle plate for regulating and supplying air for cooling / hot air and ventilation into a vehicle. In general, the damper is driven by an actuator that decelerates and outputs the rotational force of the motor. An example of this is shown in FIG. 1.

Conventionally, as shown in FIG. 1, the output gear 30 is pivotally driven at a predetermined angle by the driving force of the driving motor 10 via the reduction gear group 20 engaged with the worm 12 arranged on the motor shaft 11. I was. At this time, the reduction gear group 20, as shown, the first gear body 21 is directly engaged with the worm 12, the second gear body 22 meshed with the first gear body 21, the second gear body And a third gear body 23 meshed with 22. The first, second, and third gear bodies 21, 22, and 23 are continuously engaged to transmit power, and the driving force of the driving motor 10 is decelerated, and the force is doubled. Of course, the first, second, third gear bodies 21, 22, 23 are integrally paired with the large gears 21a, 22a, 23a and the small gears 21b, 22b, 23b on the same axis, respectively. The small gears 21b, 22b, and 23b and the large gears 21a, 22a, and 23a are sequentially engaged with each other to sequentially reduce power transmission. Accordingly, the small gear 23b of the third gear body 23 finally engages with the output gear 30.

Thus, the existing damper actuator has three spur gears to reduce the speed and double the rotational force of the drive motor to drive the output gear, thereby increasing the number of parts, and thus increasing the number of manufacturing processes, thereby increasing production costs as well as production efficiency. There was a falling lung. In particular, since gears of different sizes are formed in one gear body, the manufacturing is difficult and installation in the casing is also difficult, resulting in a high incidence of defects during assembly. In addition, since the motor and the gears are not provided in the casing, it is not only aesthetically pleasing, but also has a disadvantage of disassembling all the gears when reinstalling.

An object of the present invention is to solve the above-mentioned shortcomings, and by reducing the number of power transmission gears to reduce the speed of the driving motor to reduce the number of parts by reducing the number of manufacturing process while reducing the number of manufacturing process The present invention provides an actuator for driving an air conditioner damper for a vehicle that can improve efficiency. In addition, by providing a motor, a reduction gear body and an output gear in the casing to manufacture as a unit, the purpose is to quickly replace the unit in case of failure to reduce maintenance time, and to prevent corrosion due to external exposure of the components.

1 is a structural diagram showing a conventional automobile actuator,

Figure 2 is a perspective view showing the internal structure of the actuator according to the present invention,

Figure 3 is an enlarged partial perspective view showing the power transmission portion of the present invention in detail.

Explanation of symbols on the main parts of the drawings

10: drive motor 11: motor shaft

30: output gear 31: gear part

32: support shaft portion 40, 40a, 40b: casing

41: support protrusion 42: support hole

50: worm 60: reduction gear body

61: worm wheel 62: spiral gear

63: support shaft

According to the present invention, the actuator structure for driving the air conditioning damper includes a motor, a worm built in the drive shaft of the motor, a worm wheel engaged with the worm to decelerate the driving force of the motor, and the worm wheel is speeched to drive the driving force. A reduction gear body having a spiral gear unit for decelerating transmission, an output gear that is engaged with the reduction gear body to receive power, and operates the damper with the received power, the motor, the reduction gear body and the output gear are seated, It includes a lower casing having a power supply terminal and an upper casing coupled to an upper portion of the lower casing, and forming a support hole on one side to protrude a predetermined portion of the output gear.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail.

Figure 2 of the accompanying drawings shows the internal structure of the actuator according to the present invention.

As shown in the figure, the drive motor 10 is mounted on one side of the casing 40, which is formed by coupling the upper and lower plates 40a and 40b. A worm 50 is arranged on the shaft 11 of the drive motor 10, and the worm 50 is engaged with a worm wheel 61 that is substantially orthogonal thereto. The worm wheel 61 has the spiral gear portion 62 integrally laterally extended to the side thereof, and rotates integrally on the support shaft 63 horizontally supported by the pair of support protrusions 41 formed on the casing 40. do. The worm wheel 61 and the spiral gear portion 62 are referred to as the reduction gear body 60, and the spiral gear portion 62 of the reduction gear body 60 is engaged with the output gear 30 having a large diameter. The output gear 30 has its rotation axis formed in the vertical direction, and the gear portion 31 is formed along its outer circumferential surface. One side of the output gear 30 protrudes to the support hole 42 of the upper casing 40a to transmit a driving force. As described above, the worm wheel 61 and the output gear 30 are made of a helical gear, which has the advantage of extremely smooth transmission, low vibration sound, and high power. .

The output gear 30 has support holes 42 formed in the upper and lower plates 40a and 40b of the casing 40 corresponding to the support shaft portion 32 protruding upward and downward from the gear portion 31. Rotation is fixed to the The support shaft portion 32 of the output gear 30 is hollow, and an output shaft (not shown) is inserted therein to operate a damper (not shown). Reference numeral 70 denotes a printed circuit board (PCB), and reference numeral 80 denotes a terminal.

3 is a partially enlarged perspective view showing the power transmission portion of the present invention in detail, with reference to this drawing will be described in detail the power transmission system as follows.

The reduction gear body 60 which is engaged with the worm 50 built in the motor shaft 11 and decelerates the driving force of the driving motor 10 has a worm wheel 61 formed with a helical gear as shown, and the worm wheel 61 with the worm wheel 61. The spiral gear part 62 is made into the speech. In this way, since the worm wheel 61 and the spiral gear portion 62 are integrally formed and rotate on the support shaft 63, the worm wheel 61 is first decelerated by the rotation of the worm 50 and then the spiral gear portion 62 is rotated. ) And the output gear 30 also functions as a worm and a worm wheel to decelerate again. Of course, at this time, along with the deceleration, the driving force is multiplied and output through the output gear 30.

As described above, the present invention has the advantage of reducing the number of parts by simplifying the number of power transmission gears to reduce and transmit the speed of the drive motor. This not only reduces manufacturing costs but also improves manufacturing efficiency by reducing the number of manufacturing processes. In addition, since only one reduction gear is installed between the power input shaft and the power output shaft, the product is not only solid but also it can suppress the trouble of driving. It has an effect. In addition, the production of worm wheels and output gears by helical gears also has the advantage of smooth power transmission. In addition, by providing a motor, a reduction gear body and an output gear in the casing to manufacture a single unit, it is possible to quickly replace the unit in case of failure, thereby reducing the maintenance time, and to prevent corrosion due to external exposure of the components. .

Claims (2)

In the actuator structure for driving the air conditioning damper, Motor 10; A worm 50 arranged on the drive shaft of the motor 10; Gearbox 60 formed with a worm wheel 61 meshed with the worm 50 to decelerate the driving force of the motor 10 and a spiral gear portion 62 that is extended with the worm wheel 61 to decelerate and transfer the driving force. ); An output gear 30 engaged with the reduction gear body 60 to receive power and to operate the damper with the received power; A lower casing 40b on which the motor 10, the reduction gear body 60, and the output gear 30 are seated, and having a power supply terminal 80 at one side thereof; And An actuator for driving an air conditioning damper in a vehicle including an upper casing 40a coupled to an upper portion of the lower casing 40b and having a support hole 42 formed at one side thereof to protrude a predetermined portion of the output gear 30. rescue. The actuator structure of claim 1, wherein the worm wheel and the output gear comprise a helical gear.