KR200221974Y1 - Actuator of Aircon for Vehicle - Google Patents

Abstract

The present invention relates to an actuator of an air conditioner for a vehicle, and its purpose is to provide a coupling structure to be detached from each other and integrally provided on both sides of the case provided on the upper and lower sides, so that the number of parts and the assembly process are easy. It is to provide an actuator of the air conditioner, the case 20 is formed in the upper and lower sides, the motor 30 is provided in the case 20, the motor 30 is formed on the motor shaft 31 extending to one side, At one end, an input worm 51 is formed to be engaged with the motor worm 40, and at the other end, a reduction gear 50 having a circular shaft having an output worm 52 integrally formed therein is engaged with the output worm 52 to the outside. An output gear 60 for transmitting rotational force, a perturbator 73 interworking with the output gear 60 and a variable resistor 70 integrally formed with a resistance film 72 in contact with the output gear 60, and the case separately formed One side of 20 The coupling protrusion 26 is integrally provided at the other side, and the coupling groove 22 is integrally provided at the other side so that the coupling protrusion 26 can be inserted therein.

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 by providing a coupling structure that is formed integrally with each other in the case formed separately up and down to engage with each other.

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 in the figure, the case 2 is formed to be separated into upper and lower sides so as to form the outside of the actuator 1, the inner cylindrical side of the lower case 2b provided on the lower side of the cylindrical cylindrical motor ( 3) is fixedly installed. 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), and the side of the motor worm (4) is provided with a plurality of spur gears that the shafts are intersected with each other so as to have a function of the worm wheel to receive the rotational force. The reduction gear group 5 is provided. The output gear 6 is meshed with the reduction gear group 5, and the output gear 6 is a spur gear, which protrudes upward and downward on the center side thereof, and the lower side penetrates the lower surface of the case 2. The output shaft 6a is provided.

Next, 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) can be detected by detecting the rotation of the output gear 6. The resistor 7 forms a carbon-coated resistive film 7a on the PCB, and the output gear 6 is provided with a perturbator 6b as a contact piece for connecting to the resistive film 7a.

On the other hand, the coupling structure is provided between the upper case (2a) and the lower case (2b) in order to combine the case 2 separated into the upper, lower side, the lower case (2b) protrudes upwards on the inner outer Is provided with a plurality of fastening rods (8b) provided in a hollow, the upper case (2a) is provided with a fastening hole (8a) formed to penetrate up and down.

Thus, when the upper case 2a is coupled to the upper side of the lower case 2b, the fastening hole 8a is disposed above the fastening rod 8b, and the screw 9 is inserted into the upper side of the fastening hole 8a. By fastening the lower case (2b) and the upper case (2a).

However, such a conventional actuator of a vehicle air conditioner requires a separate coupling member and a coupling step to couple the case provided to the upper and lower sides, thereby increasing the number of parts and the assembly process.

The present invention is to solve such a conventional problem, the object of the present invention is provided on both sides of the case provided in the upper and lower, each integrally provided with a coupling structure to be detached from each other to reduce the number of parts and the assembly process It is to provide an actuator of a vehicle air conditioner that becomes easy.

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

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

3 is a perspective view showing a coupled state of the case according to the present invention.

Figure 4 is an enlarged view showing a fastening protrusion according to the present invention.

Explanation of symbols on the main parts of the drawings

10: actuator 20: case

21: upper case 22: coupling groove

23: support bar 25: lower case

26: engaging projection 27: locking jaw

30: motor 40: motor warham

50: reduction gear 60: output gear

61: output shaft 70: variable resistor

Actuator of the vehicle air conditioner of the present invention for achieving the above object, the case is formed in the upper and lower sides, the motor is installed in the case and the motor worm is formed on the motor shaft extending to one side, and the motor worm at one end A physics input worm is formed, and at the other end, a reduction gear on a circular shaft having an output worm integrally formed therein, an output gear for transmitting rotational force to the outside by engaging the output worm, a perturbator interworking with the output gear, and a resistance film contacting the output gear In the actuator of the vehicle air conditioner having a variable resistor formed integrally formed, the coupling protrusion is integrally provided on one side of the separately formed case, the coupling groove is integrally provided on the other side so that the coupling protrusion can be removed. do.

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 an exploded perspective view showing an actuator of a vehicle air conditioner according to the present invention. As shown therein, a case 20 of plastic material is formed to be separated into upper and lower sides so as to form the outside of the actuator 10, and the inner side of the lower case 25 provided at the lower side has a cylindrical motor 30. ) Is fixedly installed. The motor shaft 31 is formed to extend to one side of the motor 30.

First, the motor worm 40 is provided on the motor shaft 31 is provided in the form of a helical gear, the motor worm 40 is provided with a reduction gear 50 that the shaft is arranged to cross each other to receive the rotational force, this The reduction gear 50 has one end of the input worm 51 is formed to be engaged with the motor worm 40, the output worm 52 is provided on the other end.

Next, the output worm 52 is disposed to be throttled with the output worm 52 is provided with a spur gear of a large diameter so as to have a function of the worm wheel, the output gear 60 is the lower case 25 ) Is arranged to be rotatable and an output shaft 61 protruding upward is installed at the center side thereof.

In addition, a variable resistor 70 connected to the ECU is provided on the upper side of the output gear 60 provided to adjust the flap (not shown) of the air conditioner so that the rotation angle of the flap can be checked by detecting the rotation of the output gear 60. do.

The variable resistor 70 has a resistive film 72 formed on one side of the plate-shaped plate 71, and the rotating plate 74 is interoperable with the output gear 60 on the upper side of the resistive film 72. It is provided, the inner side of the rotating plate 74 is provided with a perturbator 73 is interlocked with the one end is in contact with the resistive film 72, the resistive film 72 to the outside of the lower case 25 A terminal 75 extending and connected to the ECU via a connector is provided as an integrally encapsulated potentiometer.

On the other hand, as shown in Figure 3, the coupling structure formed integrally with each of the upper case 21 and the lower case 25 is provided to be removed from each other to reduce the number of parts and simplify the assembly process.

First, a plurality of coupling protrusions 26 protruding upward are provided inside the outer circumferential side of the lower case 25. The coupling protrusions 26 are formed integrally with the lower case 25 to be injection molded, and two are provided at the front and rear and one at the left and right sides, and the arrangement position is the case 20. It is not necessary to achieve exact symmetry considering the correlation with other components installed inside the module. In addition, the upper end of the coupling protrusion 26 is provided in a streamlined shape so as to be easily inserted into the coupling groove 22 to be rearranged, and a step is formed at the bottom thereof to form a locking step 27 (see FIG. 4).

Next, a coupling groove 22 is formed inside the outer circumferential side of the upper case 21 so as to correspond to the coupling protrusion 26 of the lower case 25. The coupling groove 22 forms a moving section to allow the coupling protrusion 26 to enter and move therein. The coupling groove 22 is elongated upwardly and downwardly, and smoothly moves the coupling protrusion 26 entering the interior thereof. Mostly open to the outer circumferential side of the upper case 21 so that the support bar 23 is provided so that the locking jaw (27) can be covered, the coupling groove 22 and the support bar (23) It is molded integrally with the upper case 21 to be injection molded. And between the support bar 23 and the inner surface of the coupling groove 22 is provided wider than the thickness of the engaging projection 26, narrower than the engaging jaw 27 provided on the front end of the engaging projection 26. When the locking jaw 27 is passed through the support bar 23 and the inside of the coupling groove 22, a stronger pressure may be applied thereto.

The actuator of the vehicle air conditioner according to the present invention configured as described above includes a motor 30, a reduction gear 50, an output gear 60, and a variable resistor 70 between the separately formed upper case 21 and lower case 25. Install the upper case 21 covers the upper case 21 to the upper side of the lower case 25 and presses the upper case 21 toward the lower case 25, wherein the engaging projection 26 provided on the lower case 25 is the upper It enters into the coupling groove 22 provided in the case 21. And since the outer circumferential side of the coupling groove 22 is mostly opened, the coupling protrusion 26 is to be moved smoothly inside the coupling groove 22. In addition, the engaging projection 26 enters the inside of the coupling groove 22 and passes through the support bar 23 while extending the support bar 23 to the outside, the locking jaw 27 is the support bar 23 After passing through the support bar 23 is restored to its original shape is in close contact with the locking jaw (27) is to prevent the separation of the locking jaw (27).

As described in detail above, the actuator of the air conditioner for a vehicle according to the present invention, because the locking projection is integrally provided on the lower case and the locking groove is integrally provided on the upper case, there is no need for a separate member for coupling the case There is an advantage that can be reduced and the assembly process is easy to improve the productivity of the product.

Claims (2)

A case formed separately from the upper and lower sides, a motor formed with a motor worm on a motor shaft extending to one side, and an input worm that is engaged with the motor worm at one end, and an output worm formed at the other end integrally with a circular shaft. In an actuator of a vehicle air conditioner having a reduction gear, an output gear which is engaged with the output worm to transmit the rotational force to the outside, and a variable resistor which is integrally formed with a perturbator interworking with the output gear and a resistance film in contact therewith, The coupling protrusion 26 is integrally provided at one side of the separated case 20, and the coupling groove 22 is integrally provided at the other side so that the coupling protrusion 26 can be inserted therein. Actuator. The method of claim 1, A locking jaw 27 is formed at the front end side of the coupling protrusion 26, and a support bar 23 is provided at one side of the coupling groove 22 to cover the locking jaw 27. Actuator of the air conditioner.