KR101227394B1 - Door actuator of air conditioning system for automotive vehicles - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door actuator of a vehicle air conditioner, and is configured such that a plurality of doors can be driven by one door actuator, so that the number of parts can be reduced, manufacturing costs can be reduced, and products can be miniaturized and slimmed. The purpose is to make sure.
In order to achieve the above object, the present invention provides a door actuator of a vehicle air conditioner that rotates doors to adjust an opening angle. A first output shaft installed in the case so as to be connected, a second output shaft installed in the case so as to be connected to the other door, and a power transmission mechanism for transmitting power of the driving motor to any one selected from the first output shaft and the second output shaft. The power transmission mechanism includes: an intermediate gear that rotates by receiving power from a driving motor and swings between a first position and a second position; A first power transmission gear integrally installed on the first output shaft so as to be engaged with the intermediate gear swinged to the first position; A second power transmission gear integrally mounted to the second output shaft and elastically pressurized the intermediate gear to either one of the first position and the second position so as to be engaged with the intermediate gear swinged to the second position. Spring means; It is provided with a solenoid which is operated according to an applied control signal and swings the intermediate gear of one position to the other position.

Description

DOOR ACTUATOR OF AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

The present invention relates to a door actuator of a vehicle air conditioner, and more particularly, by configuring a plurality of doors can be driven by one door actuator, the number of parts can be reduced, manufacturing costs can be reduced, and the product The present invention relates to a door actuator of a vehicle air conditioner that can be miniaturized and slimmed.

The vehicle air conditioner includes various doors for adjusting the amount of opening of the air passage, and these doors are driven by the door actuator.

1 shows a view of the door actuator 1.

The door actuator 1 is installed on the outer surface of the air conditioning case 3 and is connected to the doors 5a and 5b installed inside the air conditioning case 3.

The door actuator 1 rotates the doors 5a and 5b at a specific angle while being driven by an applied power source. Therefore, the opening angles of the doors 5a and 5b are adjusted.

On the other hand, the door actuator 1 may control each door 5b individually, and may control the several door 5a at the same time through the cam 6 at the same time. Typically, Temp. Door 5b is independently controlled, and Mode Doors 5a, for example, Def Door, Vent Door, and Floor The door (Floor Door) and the like are controlled at the same time through the cam (6).

Therefore, the air conditioner usually includes a door actuator 1a for controlling the temporal door 5b and a door actuator 1b for controlling the mode doors 5a separately.

However, such a conventional air conditioner has two drawbacks (1a, 1b) is required to control the temp door (5b) and the mode door (5a), there is a disadvantage that the number of parts is increased, because of this disadvantage manufacturing cost There is a problem of being raised.

In addition, the conventional air conditioning apparatus has a disadvantage in that the size of the air conditioning case 3 is increased since the two door actuators 1a and 1b are installed in the air conditioning case 3, and because of these disadvantages, the air conditioning case 3 ), It is pointed out that a lot of installation space is required when installing.

In particular, since a large amount of installation space is required when the air conditioning case 3 is installed, there is a problem in that the interior space cannot be efficiently used, and there is a problem that it interferes with surrounding components. The drawback is that the layout must be reconsidered.

The present invention has been made to solve the above-mentioned conventional problems, the object is to improve the structure of the door actuator, the door actuator of the vehicle air conditioner that can drive two doors with one door actuator To provide.

Another object of the present invention is to provide a door actuator of a vehicle air conditioner that can reduce the number of parts by configuring two doors by one door actuator, thereby reducing the manufacturing cost. .

Another object of the present invention is to provide a door actuator of a vehicle air conditioner that can be miniaturized and slimmed by configuring a plurality of doors with only one door actuator.

It is still another object of the present invention to provide a door actuator of a vehicle air conditioner that prevents interference with peripheral components and makes more efficient use of interior space by configuring the air conditioning case to be miniaturized and slimmed. have.

In order to achieve the above object, the present invention, in the door actuator of the vehicle air conditioner for adjusting the opening angle by rotating the door, the case, a drive motor that is forward and reverse rotation in accordance with the control signal, and one of the door and A first output shaft installed in the case to be connected, a second output shaft installed in the case so as to be connected to the other door, and transmitting power of the driving motor to any one selected from the first output shaft and the second output shaft. And a power transmission mechanism, the power transmission mechanism comprising: an intermediate gear that rotates by receiving power from the driving motor and swings between a first position and a second position; A first power transmission gear integrally installed on the first output shaft so as to be engaged with the intermediate gear swinging to the first position; A second power transmission gear integrated with the second output shaft so as to be engaged with the intermediate gear swinging to the second position; and the intermediate gear to one of the first position and the second position. A spring for elastically pressing; It is characterized in that it comprises a solenoid which is operated according to the control signal applied to swing the intermediate gear of one position to the other position.

Preferably, the power transmission mechanism, at least one reduction gear for reducing the power of the drive motor; Among the reduction gears, a swing arm is installed to be swingable on a rotational center axis of the most downstream reduction gear, and the intermediate gear rotates to the swing arm so as to be engaged with the most downstream reduction gear. It is possible to install, the spring, the swing arm to press the swing arm to any one position so that the intermediate gear meshed with the most downstream side reduction gear can be pressed to any one of the first position and the second position, The solenoid is characterized in that it comprises a push member for pressing the swing arm to the other position so that the intermediate gear engaged with the most downstream gear reduction gear can swing from one position to the other position. .

According to the door actuator of the vehicle air conditioner according to the present invention, since two doors can be driven by one drive motor, two doors can be controlled by one door actuator.

Therefore, the number of parts can be reduced compared to the prior art in which two door actuators are required to control two doors. Therefore, there is an effect that the manufacturing cost can be greatly reduced.

In addition, since the present invention can drive a plurality of doors even if only one door actuator is provided, the size of the air conditioning case can be reduced in size and slimmer as compared with a conventional air conditioning case in which two door actuators are provided.

Therefore, the installation of the air conditioning case does not require much installation space. As a result, the arrangement is free and there is an effect that the interior space can be used more efficiently.

1 is a perspective view showing a door actuator of a conventional vehicle air conditioner;
Figure 2 is an exploded perspective view showing an exploded main part of the door actuator of the vehicle air conditioner according to the present invention,
3 is a cross-sectional view showing a coupling state of FIG.
4 is a view showing an operation example of the door actuator according to the present invention, a cross-sectional view showing a state of controlling the temporal door,
5 is a view showing an operation example of the door actuator according to the present invention, a cross-sectional view showing a mode door control mode.

Hereinafter, a preferred embodiment of a door actuator of a vehicle air conditioner according to the present invention will be described in detail with reference to the accompanying drawings (the same components will be described using the same reference numerals).

First, referring to FIGS. 2 and 3, the door actuator of the present invention includes a case 10, and the case 10 includes a drive motor 12, a first output shaft 14, and a second output shaft 16. This is installed.

The drive motor 12 rotates forward and backward in accordance with the control signal of the air conditioning apparatus.

The first output shaft 14 is rotated by receiving the driving force of the driving motor 12, the first output shaft 14 is rotated in this way, it is connected to the door (5b), for example, the temp door (5b) The temp door 5b is rotated.

The second output shaft 16 is rotated by receiving the driving force of the driving motor 12, and the second output shaft 16 which is rotated in this way is connected to another door 5a, for example, the mode door 5a. The mode door 5a is rotated.

The door actuator of the present invention includes a power transmission mechanism 20 for transmitting the power of the drive motor 12 to any one selected from the first output shaft 14 and the second output shaft 16.

The power transmission mechanism 20 includes a deceleration unit 30 for decelerating the power of the drive motor 12 and a power for transmitting the decelerated power to any one selected from the first output shaft 14 and the second output shaft 16. It includes a delivery unit 40.

The reduction unit 30 is composed of at least one reduction gear 32, 34, 36, 38 for reducing the power of the drive motor 12.

The reduction gears 32, 34, 36, and 38 may include a case (1) to be engaged with the first reduction gear 32 and the first reduction gear 32 installed on the motor shaft 12a of the driving motor 12. 10) to be engaged with the second reduction gear 34 rotatably installed in the third gear, the third reduction gear 36 and the third reduction gear 36 which are integrally rotated with the second reduction gear 34. A fourth reduction gear 38 is rotatably installed in the case 10.

The first reduction gear 32 and the second reduction gear 34 are composed of a worm gear, and the third reduction gear 36 has a diameter smaller than that of the second reduction gear 34. The fourth reduction gear 38 has a larger diameter than the second and third reduction gears 36.

The plurality of reduction gears 32, 34, 36, 38 configured as described above appropriately reduce the rotational force of the drive motor 12.

The power transmission unit 40 swings on the rotational center shaft 38a of the most downstream reduction gear 38, that is, the fourth reduction gear 38, among the reduction gears 32, 34, 36, 38. Swing) is provided with a swing arm 42 which is installed to be movable.

The power transmission unit 40 includes at least one intermediate gear 44 rotatably installed on the swing arm 42 so as to be engaged with the most downstream deceleration gear 38, that is, the fourth reduction gear 38. ), A first power transmission gear 46 installed on the first output shaft 14 to be engaged with the intermediate gear 44, and a second output shaft 16 to be engaged with the intermediate gear 44. A second power transmission gear 48 is provided.

The intermediate gears 44 include a first intermediate gear 44a that is directly engaged with the fourth reduction gear 38 and a second intermediate gear 44b that is engaged with the first intermediate gear 44a.

Since the intermediate gears 44 are installed on the swing arm 42 in engagement with the fourth reduction gear 38, the center of rotation 38a of the fourth reduction gear 38 together with the swing arm 42 is provided. Swing around). In particular, it swings between the "first position" (X) and the "second position" (Y) about the rotation center axis 38a.

The first power transmission gear 46 is engaged with the first intermediate gear 44a swinging at the "first position" (X), and the first power transmission gear 46 thus engaged is the deceleration part 30. The driving force of the drive motor 12 transmitted from the transmission to the first output shaft (14). Thus, the door 5b, for example, the temporal door 5b, which is connected to the first output shaft 14, is rotated. As a result, the opening angle of the temporal door 5b can be adjusted.

On the other hand, it is preferable that the first connecting gear 47 is provided between the first power transmission gear 46 and the first intermediate gear 44a.

The first connecting gear 47 has a large diameter gear portion 47a that can be meshed with the first intermediate gear 44a, and a large diameter gear portion 47a so as to be meshed with the first power transmission gear 46. It includes a small diameter gear portion 47b that is integrally installed in the).

The first connecting gear 47 appropriately decelerates the driving force of the driving motor 12 transmitted from the first intermediate gear 44a to the first power transmission gear 46.

The second power transmission gear 48 is engaged with the second intermediate gear 44b swinging at the "second position" (Y), and the second power transmission gear 48 thus engaged is the deceleration part 30. The driving force of the drive motor 12 transmitted from the transmission to the second output shaft (16). Thus, the door 5a, for example, the mode door 5a, which is connected to the second output shaft 16, is rotated. As a result, the opening angle of the mode door 5a can be adjusted.

On the other hand, it is preferable that a second connecting gear 49 is provided between the second power transmission gear 48 and the second intermediary gear 44b.

The second connecting gear 49 has a large diameter gear portion 49a that can be meshed with the second mediated gear 44b, and the large diameter gear portion 49a so as to be meshed with the second power transmission gear 48. It includes a small diameter gear portion (49b) integrally installed in the).

The second connecting gear 49 appropriately decelerates the driving force of the driving motor 12 transmitted from the second intermediate gear 44b to the second power transmission gear 48.

Again, referring to FIGS. 2 and 3, the power transmission unit 40 may use the intermediate gear 44 as one selected from the "first position" (X) and the "second position" (Y) as necessary. It is provided with a swing movement means capable of swing movement.

The swing movement means includes a spring 50 which elastically presses the intermediate gear 44 to any one of the "first position" (X) and the "second position" (Y), and the median elastically pressurized to either position. It includes a solenoid 52 that can move the gear 44 to the other position.

The spring 50 is a torsion spring, one side of which is supported by the swing arm 42, the other side of which is supported by the case 10, and the spring 50 thus supported swings the swing arm 42 in a "first position". Elastic pressing in the (X) direction. Therefore, the intermediate gear 44 provided on the swing arm 42 is elastically pressed in the "first position" (X) direction.

This allows the first intermediate gear 44a to always move to the "first position" (X). As a result, the first intermediary gear 44a can be maintained engaged with the first power transmission gear 46. Accordingly, the driving force of the driving motor 12 transmitted to the first intermediate gear 44a can be transmitted to the first output shaft 14 through the first power transmission gear 46.

The solenoid 52 has a push member 52a. When a control signal is applied, the solenoid 52 pushes the swing arm 42 in the "second position" (Y) direction as the push member 52a protrudes. . Therefore, the intermediate gear 44 provided in the swing arm 42 is pressed in the "second position" (Y) direction.

This allows the second intermediate gear 44b to move to the " second position " (Y). Accordingly, the second intermediate gear 44b can be engaged with the second power transmission gear 46. As a result, the driving force of the drive motor 12 transmitted to the second intermediate gear 44b can be transmitted to the second output shaft 16 through the second power transmission gear 48.

According to such a power transmission part 40, the drive motor 12 by configuring the intermediate gear 44 to swing in the "first position" (X) or "second position" (Y) as necessary, It is possible to selectively transmit the driving force of any one of the first output shaft 14 and the second output shaft (16).

Accordingly, the temporal door 5b connected to the first output shaft 14 and the mode door 5a connected to the second output shaft 16 can be selectively operated. Thus, it is possible to drive the two doors (5a, 5b) with one drive motor (12).

Next, an operation example of the present invention having such a configuration will be described with reference to FIGS. 4 and 5.

First, the door actuator of the present invention is installed on one side of the air conditioning case (3).

At this time, the first output shaft 14 is connected to the temporal door 5b, and the second output shaft 16 is connected to the mode door 5a. The connection with the mode doors 5a is made through the cam 6, and the connection with the temporal doors 5b is made through a separate link means or gear means (not shown).

Hereinafter, a process in which the door actuator of the present invention controls the temporal door 5b will be described with reference to FIG. 4.

First, when the power applied to the solenoid 52 is erased, the first intermediary gear 44a returns to the "first position" X by the elastic force of the spring 50.

The first intermediary gear 44a returned to the "first position" X is engaged with the first power transmission gear 46. The first intermediate gear 44a meshed with the first power transmission gear 46 transmits the driving force of the driving motor 12 to the first output shaft 14 and the temporal door 5b connected thereto. Thereby, the temporal door 5b is rotated and adjusted, As a result, the opening angle of the temporal door 5b is adjusted.

Next, a process of controlling the mode doors 5a by the door actuator of the present invention will be described with reference to FIG. 5.

First, when power is applied to the solenoid 52, the second intermediate gear 44b is swinging in the direction of the "second position" (Y) while being pressed by the push member 52a of the solenoid 52.

Then, the second mediated gear 44b swinging at the "second position" Y is engaged with the second power transmission gear 46. The second intermediate gear 44b meshed with the second power transmission gear 46 transmits the driving force of the driving motor 12 to the second output shaft 16 and the mode door 5a connected thereto. As a result, the mode door 5a is rotated and, as a result, the opening angle of the mode door 5a is adjusted.

According to the present invention having such a configuration, since two doors can be driven by one drive motor 12, two doors 5a and 5b can be controlled by one door actuator.

Therefore, the number of parts can be reduced compared to the prior art which requires two door actuators to control two doors 5a and 5b. Therefore, manufacturing cost can be reduced significantly.

In addition, since only a single door actuator can be installed to drive the plurality of doors 5a and 5b, the size of the air conditioning case 3 can be reduced in size and slimmer compared to the conventional air conditioner case 3 in which two door actuators are installed. can do.

Therefore, when installing the air conditioning case (3) does not require a lot of installation space. As a result, the arrangement is free and the interior space can be used more efficiently.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

1: Door Actuator 3: Air Conditioning Case
5a: Mode Door 5b: Temp.Door
6: Cam 10: Case
12: drive motor 14: first output shaft
16: second output shaft 20: power transmission mechanism
30: reduction unit 32: first reduction gear
34: 2nd reduction gear 36: 3rd reduction gear
38: fourth reduction gear 40: power transmission unit
42: swing arm 44: intermediate gear
46: first power transmission gear 47: first coupling gear
48: second power transmission gear 49: second coupling gear
50: Spring 52: Solenoid
52a: push member

Claims (5)

In the door actuator of the vehicle air conditioner for adjusting the opening angle by rotating the door (5a, 5b),
The first output shaft 14 installed in the case 10 to be connected to the case 10, the drive motor 12 is rotated forward and reverse according to the control signal, either the door (5b), and the other The second output shaft 16 installed in the case 10 and the power of the driving motor 12 are selected from the first output shaft 14 and the second output shaft 16 so as to be connected to the door 5a on the side. It includes a power transmission mechanism 20 for transmitting to any one, the power transmission mechanism 20,
An intermediate gear 44 that is rotated by the power of the drive motor 12 and swings between a first position X and a second position Y;
A first power transmission gear 46 integrally installed on the first output shaft 14 so as to be engaged with the intermediate gear 44 swinging to the first position X;
A second power transmission gear 48 integrally installed on the second output shaft 16 so as to be engaged with the intermediate gear 44 swinging to the second position Y;
A spring (50) for elastically pressing the intermediate gear (44) to either one of the first position (X) and the second position (Y);
Door actuator of the vehicle air conditioner, characterized in that it comprises a solenoid (52) for operating in response to the control signal applied to swing the intermediate gear (42) in any one position to the other position. The method of claim 1,
The power transmission mechanism 20,
At least one reduction gear for reducing the power of the drive motor 12;
Among the reduction gears, includes a swing arm (42) which is installed on the rotational center axis of the most downstream reduction gear to enable a swing movement,
The intermediate gear 44 is rotatably installed on the swing arm 42 so that the intermediate gear 44 can be engaged with the most downstream reduction gear.
The spring 50 has the swing arm so that the intermediate gear 44 meshed with the most downstream deceleration gear can be pressed to any one of the first position X and the second position Y. 42) to either position,
The solenoid 52 presses the swing arm 42 to the other position so that the intermediate gear 44 engaged with the most downstream gear reducer can swing from one position to the other position. Door actuator of a vehicle air conditioner, characterized in that it comprises a push member (52a). The method of claim 2,
The intermediate gear 44 is,
A first intervening gear 44a meshed directly with the lowest downstream reduction gear, and a second intervening gear 44b meshed with the first intermediary gear 44a;
The first intermediate gear 44a is engaged with the first power transmission gear 46 at the first position X, and the second intermediate gear 44a is at the second position Y. Door actuator of the vehicle air conditioner, characterized in that the meshed with the second power transmission gear (48). The method of claim 3,
Installed between the first intermediate gear 44a and the first power transmission gear 46 so as to reduce the power transmitted from the first intermediate gear 44a to the first power transmission gear 46. A first connecting gear 47;
Installed between the second intermediate gear 44b and the second power transmission gear 48 to slow down the power transmitted from the second intermediate gear 44b to the second power transmission gear 48. Door actuator of the vehicle air conditioner, characterized in that it further comprises a second connecting gear (49). The method according to any one of claims 1 to 4,
It further includes a mode door (5a) for adjusting the mode of the air conditioner, and a Temp. Door (5b) for adjusting the amount of cold and warm air,
The first output shaft 14 is connected to the temporal door (5b), the second output shaft 16 is connected to the mode door (5a) via a cam (6) characterized in that Door actuator.

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