JPH0792269B2 - Blow-out adjustment device for air conditioner design - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air conditioner, and in particular, to adjusting the blowing direction for an air conditioner suitable for adjusting the blowing direction of the air flow blown from the air conditioner. Regarding the device.

[Prior art]

Conventionally, in this type of blowing direction adjusting device, for example,
As disclosed in Japanese Utility Model Laid-Open No. 123239/1983, the louver provided at the air outlet of a vehicle air conditioner is swung under the operation of an operation switch to blow out the air flow from the air outlet. There is a system in which the louver is stopped when the operation switch is released by swinging the.

[Problems to be solved by the invention]

However, in such a configuration, even if the occupant operates the operation switch so as to fix the blowing direction of the air flow in the specific direction, the louver does not stop at the position where the blowing direction of the air flow is fixed in the specific direction. There is a problem that it is difficult. Further, when confirming the stop position of the louver when it is stopped, it is necessary to visually check the louver or to perceive the blowing direction of the airflow sensationally, which is not preferable for smooth driving of the vehicle. .

Therefore, in order to cope with such a situation, the present invention intends to provide a blowout direction adjusting device that surely specifies a blowout direction of an airflow from an air conditioner to a desired direction only by a simple operation. To do.

[Means for solving problems]

In solving such problems, the structural features of the present invention are as follows.
A blower direction adjusting mechanism provided at the blower outlet of the air conditioner for adjusting the blowout direction of the air flow from the blower outlet by swinging the swing member, and a rotary electric motor that rotates in one direction when power is supplied from a power source. In a blow-out direction adjusting device including a rotating means for rocking the rocking member and an operating means for permitting a power supply from the power source to the rotary motor by a selective operation, a first annular ring connected to the power source. A fixed contact; second and third annular fixed contacts arranged concentrically with the first annular fixed contact; and first and second of these.
And a movable contact that slides in contact with the third annular fixed contact and that rotates in conjunction with the rotary motor about each concentric position of each of the annular fixed contacts. The insulating portion is formed at an angular position corresponding to the first swing position of the moving member, and the insulating portion is formed at the third annular fixed contact at an angular position corresponding to the second swing position of the swing member. Switch means for forming the
First fixed contact connected to the power source and connected to the first annular fixed contact, second fixed contact connected to the second annular fixed contact, and connected to the third annular fixed contact The operating means is composed of a changeover switch including a third fixed contact and a movable contact which is connected to the rotary motor and selectively switches on the first, second and third fixed contacts. There is something I did.

[Action effect]

With this configuration of the present invention, therefore, when the movable contact of the changeover switch is closed to the first fixed contact, the rotary motor allows the movable contact of the changeover switch and the first fixed contact to pass through. It is connected to the power source and receives power to rotate in one direction, and the rotating means causes the swing member of the blow-out direction adjusting mechanism to swing under the one-way rotation of the rotary electric motor to blow the air conditioner. The direction of air flow from the outlet is changed by swinging.

In such a state, when the movable contact of the changeover switch is switched to the second fixed contact, the rotary electric motor causes the movable contact of the changeover switch, the second fixed contact, and the second of the switch means. It is connected to the power source through the annular fixed contact, the first annular fixed contact and the movable contact of the switch means. Therefore, the movable contact of the switch means reaches the insulating portion of the second annular fixed contact during the rotation thereof to interrupt the second annular fixed contact, and the rotating means shuts off the rotary motor from the power source. In response to the action, the swing member is stopped at the first swing position.

If the movable contact of the changeover switch is switched to the third fixed contact, the rotary motor causes the rotary motor to move the movable contact, the third fixed contact, the third annular fixed contact of the switch means, and the third fixed contact. It is connected to the power source through one annular fixed contact and the movable contact of the switch means. Therefore, the movable contact of the switch means reaches the insulating portion of the third annular fixed contact during the rotation thereof to interrupt the third annular fixed contact, and the rotating means interrupts the rotation motor from the power source. In response to the action, the swing member is stopped at the second swing position.

In this way, the movable contact of the changeover switch is connected to the second,
By switching and turning on the third fixed contact, the rocking member can be stopped at its first and second rocking positions, and the blowing direction of the air flow by the blowing direction adjusting mechanism can be specified respectively. The person can continue the smooth driving operation of the vehicle while surely adjusting the blowing direction of the airflow to a desired direction without any extra operation other than simple switching of the changeover switch.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
The figure shows an example in which the blowing direction adjusting device according to the present invention is applied to a vehicle air conditioner. The blow-out direction adjusting device is operatively connected to the blow-out direction adjusting mechanism 10 provided at the blow-out port (located in front of the driver's seat) into the passenger compartment of the air conditioner of the vehicle, and the blow-out direction adjusting mechanism 10. Equipped with a servo mechanism 20, the blowing direction adjustment mechanism 10,
In FIG. 1, the connecting rod 13 is swung on the basis of the respective pivot shafts 11 to 11 of the plurality of louvers 12 to 12 corresponding to the reciprocating displacement in the left-right direction shown in FIG. Change the direction of air flow.

The servo mechanism 20 includes a DC electric motor and a speed reducer built in a casing 21, a rotary lever 23 fixed at a right angle to an output shaft 22 extending from the speed reducer through a peripheral wall of the casing 21, and a tip portion of the rotary lever 23. And a link rod 24 connected between the base end portion of the connecting rod 13 and. Then, in the servo mechanism 20, when the DC motor rotates in one direction, the speed reducer rotates in the same direction, and the rotary lever 23 similarly rotates about the output shaft 22 of the speed reducer as a link rod 24. In FIG. 1, the connecting rod 13 is reciprocated by reciprocating in the left-right direction while swinging in the vertical direction in the drawing. The DC motor of the servo mechanism 20 is grounded at its one input terminal and connected to the switching contact 31 of the switch 30 at the other input terminal.

The changeover switch 30 includes the movable contact 31 and the movable contact 31.
Is constituted by three fixed contacts 32, 33, 34 for selectively switching on and closing. The program switch mechanism 40 has a ring-shaped fixed contact 42 formed on a printed circuit board 41 fixed in place, and prints on the outside of the fixed contact 42 concentrically with the fixed contact 42 at predetermined intervals. Substantially annular fixed contacts 43, 44 formed on the substrate 41 and the fixed contacts 42
The movable contact 45 is pivotally supported on the printed circuit board 41 so as to rotate around the center 42a of the fixed contact 42 as a shaft while slidingly contacting the fixed contact 42.
Is connected to the fixed contact 33 of the changeover switch 30 and the positive side terminal + B of the DC power supply.

The fixed contact 43 is formed with a notch 43a, and the notch 43a is
It corresponds to the rotational position of the movable contact 45 which is wider than the width of the movable contact 45 and corresponds to the first predetermined swinging position of each louver 12 shown by the solid line in FIG. The fixed contact 44 is
It has a notch 44a, which is wider than the width of the movable contact 45 and corresponds to the rotational position of the movable contact 45 corresponding to the second predetermined swinging position of the louver 12 shown by the broken line in FIG. is doing.

In the present embodiment configured as described above, the changeover switch 30
When the movable contact 31 of is turned on to the fixed contact 33, the servo mechanism 20
The DC motor is fed from the DC power source through the fixed contact 33 and the movable contact 31 of the changeover switch 30 to rotate in one direction and rotate the speed reducer in the same direction. Then, the rotary lever 23 rotates according to the rotation of the speed reducer, the movable contact 45 of the program switch 40 rotates while slidingly contacting the fixed contacts 42, 43, 44, and the link rod 24 swings in the vertical direction. Reciprocating in the left-right direction, the connecting rod 13 of the blow-out direction adjusting mechanism 10 is reciprocatingly displaced in the left-right direction, and the louvers 12-12 move the pivots 11-11.
Swing with reference to. As a result, the blowing direction of the air flow blown from the air conditioner changes according to the swing of the louvers 12-12.

When the movable contact 31 of the changeover switch 30 is switched to the fixed contact 34 in such a state, the DC motor causes the movable contact 31 of the changeover switch 30, the fixed contact 34, the fixed contact 43 of the program switch mechanism 40, and the movable contact 45. And the fixed contact 42 to be connected to the DC power supply. Therefore, when the movable contact 45 of the program switch mechanism 40 reaches the notch 43a and is cut off from the fixed contact 43 under its rotation, the DC motor stops the power supply from the DC power supply and stops, and the speed reducer. Stops, and each rocking lever 12 stops at the position shown by the solid line in FIG. In other words, the driver
It is possible to stop each louver 12 at the first predetermined swing position and to reliably change the blowing direction of the air flow in the direction corresponding to the stop position only by closing the movable contact 31 into the fixed contact 34. .

In addition, in the state as described above, the movable contact of the changeover switch 30
When 31 is switched to the fixed contact 32, the DC motor causes the movable contact 31 of the changeover switch 30, the fixed contact 32, the fixed contact 44 of the program switch mechanism 40, the movable contact 45 and the fixed contact 42.
Is connected to the DC power source. For this reason, the movable contact 46 of the program switch mechanism 40 has a notch 44 under its rotation.
When it reaches a and is cut off from the fixed contact 44, the DC motor stops by cutting off the power supply from the DC power source, the speed reducer stops, and each louver 12 is moved to the position shown by the broken line in FIG. Stop at. In other words, the driver only needs to make the movable contact 31 of the changeover switch 30 into the fixed contact 32,
By stopping each louver 12 at the second predetermined swing position, the blowing direction of the airflow can be surely changed to the direction corresponding to this stop position.

Next, a modification of the embodiment will be described with reference to FIG. 2. In this modification, a relay is provided between the DC motor of the servo mechanism 20 and the changeover switch 30 described in the embodiment.
The characteristic of the configuration is that the 50s are connected. Relay 50
Is an electromagnetic coil 51, a ground fixed contact 52, and a fixed contact 53.
And the fixed contact 53 by exciting (or demagnetizing) the electromagnetic coil 51.
(Or ground fixed contact 52) is provided with a double throw contact 54, and one end of the electromagnetic coil 51 is grounded and the other end is connected to the movable contact 31 of the changeover switch 30. The fixed contact 53 is connected to the positive side terminal of the DC power supply, while the double throw contact 54 is connected to the other side input terminal of the DC motor.

In this modified example configured as above, the changeover switch 30
When the movable contact 31 of the relay 50 is turned on to the fixed contact 33, the electromagnetic coil 51 of the relay 50 is excited from the DC power source through the fixed contact 33 and the movable contact 31 of the changeover switch 30 to be excited and the double throw contact 54 is fixed. Throw in 53. Then, the DC motor causes the fixed contact 53 and the double throw contact of the relay 50 to flow from the DC power supply.
Power is supplied through 54 to rotate, and each louver 12 swings in the same manner as in the above embodiment to change the blowing direction of the air flow.

When the movable contact 31 of the changeover switch 30 is switched to the fixed contact 34 in such a state, the electromagnetic coil 51 of the relay 50 causes the movable contact 31, fixed contact 34 of the changeover switch 30, fixed contact 43 of the program switch mechanism 40, Moving contact 45 and fixed contact 42
Is connected to the DC power source. Therefore, the movable contact 45 of the program switch mechanism 40 has a notch 43 under its rotation.
When it reaches a and is cut off from the fixed contact 43, the electromagnetic coil 51 cuts off the power supply from the DC power source and degausses the double throw contact 54 into the ground fixed contact 52.
It is short-circuited by 54 and the ground fixed contact 52, and suddenly stops under the action of dynamic braking. As a result, the stopping of each louver 12 at the first predetermined swing position can be realized more reliably based on the dynamic braking action of the DC motor.

In addition, in the state as described above, the movable contact of the changeover switch 30
When 31 is switched to the fixed contact 32, the electromagnetic coil 51 is connected to the DC power source through the movable contact 31, the fixed contact 32 of the changeover switch 30, the fixed contact 44, the movable contact 45 and the fixed contact 42 of the program switch mechanism 40. It Therefore, the movable contact 45 of the program switch mechanism 40 is notched 44a under its rotation.
When it reaches the fixed contact 44 and is disconnected from the fixed contact 44, the electromagnetic coil 51 is disconnected from the DC power source and demagnetized to cause the double throw contact 54 to be connected to the ground fixed contact 52, and the DC motor is suddenly activated by the dynamic braking action as described above. Stop. As a result, it is possible to more reliably realize the stop of each louver 12 at the second predetermined swing position based on the dynamic braking action of the DC motor.

In carrying out the present invention, the number of fixed contacts of the changeover switch 30 and the number of fixed contacts having a defect of the program switch mechanism 40 may be appropriately changed as necessary. An insulating piece may be provided in the notch of the contact.

Further, in the above-described embodiment, an example in which the present invention is applied to a vehicle air conditioner has been described, but the present invention is not limited to this, and the present invention may be applied to various air conditioners.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention applied to a vehicle air conditioner, and FIG. 2 is a schematic view showing a modification of the embodiment. Explanation of symbols 10 …… Blowout direction adjusting mechanism, 12 …… Louver, 20 …… Servo mechanism, 23 …… Rotary lever, 30 …… Changeover switch, 40 ……
Program switch mechanism, 42, 43, 44 ... Fixed contact, 43a,
44a ... Notch.

Claims (1)

[Claims] 1. A blow-out direction adjusting mechanism which is provided at a blow-out port of an air conditioner and adjusts a blow-out direction of an air flow from the blow-out port by rocking a rocking member, and one direction when power is supplied from a power source. A blowing direction adjusting device comprising: a rotating unit that swings the swinging member by a rotating rotary motor; and an operating unit that allows power supply from the power source to the rotary motor by a selective operation. A first annular fixed contact, and the first
Second and third concentric ring-shaped fixed contacts
And a movable contact that slides in contact with the first, second and third annular fixed contacts and that rotates around the concentric positions of the annular fixed contacts in conjunction with the rotary electric motor. An insulating portion is formed at the second annular fixed contact at an angular position corresponding to the first swing position of the swing member, and the second annular fixed contact has the second swing member of the swing member. Switch means for forming an insulating portion at an angular position corresponding to the swing position of the first fixed contact, which is connected to the power source and to the first annular fixed contact, A second fixed contact connected to the second annular fixed contact, a third fixed contact connected to the third annular fixed contact, and the first, second and third connected to the rotary motor. It consists of a fixed contact and a movable contact that is selectively switched on. A blowing direction adjusting device for an air conditioner, characterized in that the operating means is constituted by a changeover switch.