KR200221967Y1 - Actuator of Aircon for Vehicle - Google Patents

Abstract

The present invention relates to an actuator of an air conditioner for a vehicle, and an object thereof is to provide an actuator of an air conditioner for a vehicle that improves the structure of a variable resistor installed inside the actuator, thereby facilitating automation of the assembly process, and the motor shaft 31 on one side. The motor 30, which is extended to generate a rotational force, the motor worm 40 coupled to the motor shaft 31, and the deceleration gear group 50 is decoupled with the motor worm 40 to reduce the rotational speed 50 And, the output gear 60 is decelerated and rotated by the deceleration gear group 50, the variable resistor 70, the variable resistor provided to detect the rotation of the output gear 60 to send a signal to the outside The resistive film 72 is formed at one side thereof, and the perturbator 73 is connected to the output gear 60 at an upper side of the resistive film 72 to be in contact with the resistive film 72. The assembly that is integrally formed All.

Description

Actuator of vehicle air conditioner {Actuator of Aircon for Vehicle}

The present invention relates to an actuator of a vehicle air conditioner, and more particularly, to an actuator of a vehicle air conditioner that improves the structure of a variable resistor installed inside an actuator, thereby facilitating automation of the assembly process.

Generally, the air conditioner for a vehicle is applied to drive and control a flap provided in an air conditioner duct, and is inevitably applied due to various factors such as stopping degree, design utility, precision control, automatic adjustment, noise reduction, and durability improvement. There is a trend.

These actuators are largely divided according to the application, and include a recirculation actuator that controls two positions of the inside and the outside air for the inside and outside air control of the vehicle, and the driver's front and down direction and the glass for the wind direction adjustment. Distribution Actuator which controls 5 position to adjust the air volume in the direction and mixed direction, etc., and Mixed Actuator which controls the Multi Position to control the supply ratio of cold and warmth for temperature control. Mixing Actuator).

1 is an exploded perspective view showing such a conventional actuator. As shown therein, the case 2 is provided to form the outside of the actuator 1, and the motor 3 is fixedly installed on one side of the case 2. In addition, the motor shaft 3 extends to one side of the motor 3, and the motor shaft 3 has a plurality of reduction gear groups 5 to reduce the rotational speed of the motor 3 to increase the output torque. ) Is installed connected.

First, the motor worm (3) is installed on the motor shaft (3), the side of the motor worm (4) is a spur gear-shaped first to receive the rotational force by intersecting the shaft to have the function of the worm wheel first Gear 5a is installed. In addition, a gear having a different diameter is composed of two single layers in the first gear 5a, and a lower side having a larger diameter is provided with a second gear 5b which is separated from the first gear 5a.

Next, a lower side of the third gear 5c provided with a larger diameter is engaged with the upper side of the second gear 5b having a smaller diameter, and an upper side of the third gear 5c is provided with a smaller diameter. In addition, an output gear 6 is intersected on the upper side of the third gear 5c. The output gear 6 is a spur gear, and an output shaft 6a penetrating the lower surface of the case 2 is provided on the center side thereof. do.

On the other hand, the variable resistor 7 connected to the ECU (not shown) is provided on the upper portion of the output gear 6 so that the rotation angle of the flap (not shown) by detecting the rotation of the output gear (6). The variable resistor 7 slides a carbon resistor or a resistance winding to increase or decrease the resistance between terminals. There are various types of devices. In an actuator of a conventional vehicle air conditioner, a resistive film 8 coated with carbon is formed on a PCB and output. The gear 6 is made of phosphor bronze or berylnium and is provided with a perturbator 9 as a contact piece for connecting to the resistive film 8, whereby another contact is formed between the perturbator 9 and the resistive film 8. do.

In the conventional actuator of the vehicle air conditioner configured as described above, when the driver sets a predetermined temperature through the control panel, the ECU recognizes the set voltage value and the voltage signal of the variable resistor 7 which detects the rotation position of the air conditioner flap. The position of the direction to be moved is calculated and the actuator 1 is driven based on the calculation result. As a result, the motor 3 and the reduction gear group 5 of the actuator 1 are operated to operate the flap, and the ECU recognizes that the flap is at the required position through the variable resistor 7 and rotates the actuator 1. And a stop signal.

However, the actuator of such a conventional air conditioner for a vehicle has a resistive film coated with carbon, a perturbator is provided on the output gear, and a soldering process for wiring is required on the PCB, which makes the assembly process of the actuator complicated. . In other words, since the resistive film and the perturbator are formed separately on the PCB and the output gear during the assembly process of the variable resistor, the contact point of the resistive film and the perturbator must be combined. In addition, since the soldering process is required to extend the wiring to the outside, it is difficult to automatically assemble and there is a problem that the productivity decreases.

The present invention is to solve such a conventional problem, it is an object of the present invention to provide an actuator of a vehicle air conditioner that is easy to automate the assembly process by improving the structure of the variable resistor installed inside the actuator.

1 is an exploded perspective view showing an actuator of a conventional vehicle air conditioner.

2 is a perspective view showing an actuator of a vehicle air conditioner according to the present invention.

3 is an exploded perspective view showing an actuator of a vehicle air conditioner according to the present invention.

Explanation of symbols on the main parts of the drawings

10: actuator 20: case

30: motor 40: motor warham

50: reduction gear group 60: output gear

70: variable resistor 71: plate

72: resist film 73: perturbator

74: Terminal 75: Board

The actuator of the vehicular air conditioner of the present invention for achieving the above object is a motor shaft extending to one side to generate a rotational force, a motor worm coupled to the motor shaft, and the motor worm is engaged with the rotation speed In the actuator of the vehicle air conditioner is provided with a reduction gear group for decelerating, an output gear that is decelerated and rotated and decelerated with the reduction gear group, and a variable resistor to detect the rotation of the output gear to send a signal to the outside, the variable resistor The resistance film is formed on one side and the upper side of the resistance film is connected to the output gear is characterized in that the perturbator in contact with the resistance film is integrally formed.

Hereinafter, with reference to the drawings a preferred embodiment of the actuator of the vehicle air conditioner according to the present invention will be described in detail.

2 is a view showing an actuator of a vehicle air conditioner according to the present invention. As shown in the figure, a case 20 made of a plastic material which is separated into upper and lower sides is provided to form the outside of the actuator 10, and the inner side of the case 20 receives power supplied from the outside. The motor 30 is fixedly installed to generate a driving force.

And one side of the motor 30 is formed to extend the motor shaft 31 to the outside to transmit the rotational force generated from the motor 30 to the outside, this motor shaft 31 is generated from the motor 30 A plurality of reduction gear groups 50 are connected and installed to reduce the rotational speed and increase the output torque.

First, the motor worm 40 is provided on the motor shaft 31 is provided in the form of a helical gear, the side of the motor worm 40, the shaft is arranged to cross each other so as to have a function of the worm wheel to receive the rotational force A first gear 51 having a gear shape is provided.

Next, a gear having a different diameter is composed of two single layers in the first gear 51, and a second gear 52 having a lower diameter having a larger diameter is separated from the first gear 51.

In addition, a lower side of the third gear 53 provided with a larger diameter is engaged with the upper side of the second gear 52 having a smaller diameter, and an upper side of the third gear 53 is provided with a smaller diameter.

In addition, an output gear 60 is intersected on the upper side of the third gear 53. The output gear 60 is a spur gear and an output shaft 61 penetrating the lower surface of the case 20 on the center side thereof. The output shaft 61 is formed with a smaller diameter than the lower side, and both sides are cut in the axial direction.

On the other hand, the rotational force generated in the motor 30 is received through the motor worm 40, the first gear 51, the second gear 52, the third gear 53 to reduce the flap of the air conditioner (not shown) On the upper side of the output gear 60 is provided to adjust the) is provided with a variable resistor 70 connected to the ECU (not shown) to detect the rotation of the output gear 60 to check the rotation angle of the flap, the present invention Encapsulate Potentiometer is used to improve the linearity of resistance value and to facilitate the automation of assembly process.

As shown in Figure 3, the variable resistor 70 of the present invention is formed in the plate 71, the resistance film 72, the perturbator 73, the terminal 74, etc. are integrally formed to form a variable during the assembly process Automatic installation of the resistor 70 is easy.

First, the plate 71 is formed of a disc on one side and the other side is formed into a rectangular plate. The center of the disc side is formed in a circular shape, and the resist film 72 printed with carbon is formed on the outer circumferential surface of the center. Is formed.

Next, a rotating plate 75 is installed on the upper side of the resistive film 72 so as to be rotatable at the center of the plate 71. In the center of the rotating plate 75, both side surfaces thereof are circular rods cut in the axial direction. The output shaft 61 of the output gear 60 is provided in a shape corresponding to the output shaft 61 to be inserted and fixed.

Then, a perturbator 73 is provided between the rotating plate 75 and the resistive film 72. The perturbator 73 is fixed to the rotary plate 75 and is bent and installed on the intermediate side so as to be in close contact with both sides by generating elastic force on both sides of the rotary plate 75 and the resistive film 72.

In addition, the resistive film 72 is provided with a terminal 74 extending to the square plate side of the plate 71, which is fixed to the plate 71, and one end thereof is connected to the resistive film 72 and the other. The side is extended to the outside of the square plate side, when installed in the case 20 is projected to the outside of the case 20 is connected to the ECU through the connector.

In the actuator of the vehicular air conditioner of the present invention configured as described above, when the driver sets the temperature control sliding knob of the control operation panel to a predetermined temperature position, the ECU inputs the set voltage value and recognizes it as a voltage code, and at the same time, rotates the actuator 10. The voltage signal of the variable resistor 70 for detecting the position is also recognized.

Therefore, the ECU calculates the direction of movement of the air conditioner flap based on the detected voltage signal (voltage code) of the actuator 10 and the voltage code for the constant temperature position set by the driver, and based on the calculation result, the clockwise direction of the flap. Alternatively, a counterclockwise rotation direction and a movement signal to the next position are output. At this time, the actuator 10 operates the flap according to the movement signal of the ECU, and the ECU is turned on at the required position through the variable resistor 70. It recognizes that the rotation stop signal is output to the actuator (10).

In this way, the actuator 10 is manually operated according to a control signal for instructing the movement or stop of the ECU, and through the variable resistor 70, the ECU reads the rotation position of the flap as a voltage code.

As described in detail above, the actuator of the vehicle air conditioner according to the present invention, by providing a reduction gear group with a multi-stage spur gear, it can flexibly cope with various demands of customers (especially increase torque), variable resistor Since the structure of the plate, the resistive film, the perturbator and the terminal are integrally formed, there is no need for additional work other than the fixing work when assembling the variable resistor to the case. This simplifies the assembly process of the actuator and facilitates the automation of the assembly process, thereby improving productivity.

Claims (1)

The motor shaft is extended to one side to generate a rotational force, a motor worm coupled to the motor shaft, a reduction gear group that is meshed with the motor worm to decelerate the rotational speed, and the deceleration rotation with the deceleration gear group In the actuator of the vehicle air conditioner is provided with an output gear and a variable resistor to detect the rotation of the output gear to send a signal to the outside, The variable resistor 70 has a resistive film 72 formed on one side thereof, and a perturbator which is connected to the output gear 60 in contact with the resistive film 72 above the resistive film 72. 73) the actuator of the vehicle air conditioner, characterized in that integrally formed.