JPH06117677A - Air-conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner in which a passenger's discomfort feeling can be reduced by varying a rotating period of an output shaft of a motor by agingly altering an applied voltage of the motor and approaching wind of a blower to natural wind. CONSTITUTION:When a driver or a fellow passenger closes a random switch 12, power is supplied to a random pattern generator 15, which generates motor application voltages V1-V6 from V1-V6 generators at random times T1-T6 generated from T1-1T6 generators and applies it to a motor 5. Then, a rotating period of a shaft of the motor 5 is varied at random to vary a swinging period thereby to approach wind of a blower to natural wind, thereby becoming time in contact with the wind not constant, and the passenger does not feel discomfort.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner used in an automobile or the like, and more particularly to an air conditioner for swinging air blown by a blower.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner used in an automobile or the like, an air outlet can be swung only manually, so that when the driver gets hot, the operator directs the outlet toward himself and becomes cool. The temperature was controlled by turning it to another place.

However, there is a problem in that the labor of operating the outlet is complicated, and an air conditioner for swinging the blown air has been put into practical use.

FIG. 6 is a view showing an instrument panel of an automobile, FIG. 7 is a perspective view showing a swing grill of an air conditioner, and FIG. 8 shows a swing device for swinging a register blade. It is a perspective view.

In the air conditioner, main equipment such as a compressor is arranged in the engine room of an automobile,
Only the outlet portion (swing grill) 1 is exposed on the instrument panel. The swing grill 1 includes five left and right register blades 2 that are swingably supported by the frame 1a, a swing device 3 that swings the register blades 2 in the direction of arrow DE, and a swing device 3
And a swing switch 4 for instructing a swing operation to a control unit (not shown) that controls the.

Further, the swinging device 3 has a motor 5, and a disc-shaped eccentric cam 7 is provided at the tip of an output shaft 6 of the motor 5.
Is fixed. A cylindrical protrusion 7a is provided at a predetermined position on the upper surface of the eccentric cam 7, and the protrusion 7a is provided.
An elongated hole 9 formed in a rod plate 8 that is movably supported only in the AB direction that changes the rotation of the eccentric cam 7 into swinging in the straight AB direction is fitted in a. Further, arm-shaped wings 8a, 8b are projected forward on both sides of the long hole 9 of the rod plate 8, and the holes formed at the tips of the wings 8a, 8b are provided in the central register blade 2. The protrusion 2a provided on the upper surface is rotatably fitted. Each of the register blades 2 is swingably connected to the connecting plate 10, whereby the central register blade 2 swings so that the other register blades 2 also swing.

Next, the operation will be described. When the driver turns on the swing switch 4, the swing switch 4
A control unit (not shown) supplies electric power to the motor 5 in response to an ON signal from the motor 5, and the motor 5 rotates in the direction of arrow C. Then, the eccentric cam 7 also rotates integrally with the output shaft 6 of the motor 5 in the direction of arrow C, and the projection 7a of the eccentric cam 7 changes its rotational position, so that the elongated hole 9 formed in the rod plate 8 is formed.
And the rotational movement of the eccentric cam 7 is linear A
The rod plate 8 swings in the AB direction by changing to swinging in the B direction.

When the rod plate 8 moves in the direction of the straight line AB, the register blade 2 at the center of the swing grill 1 moves.
The swinging shaft 2b is swung in the direction of the arrow DE to swing the air blown from the blower.

[0009]

As described above, in the conventional air conditioner, since the voltage applied to the motor 5 is constant, the rotation cycle of the output shaft 6 of the motor 5 is constant and the swing of the blade 2 is constant. Since the cycle is also constant, the cold wind (or warm air) hits the occupant at a constant intensity and at a constant cycle, which is far from the natural wind, which causes discomfort.

The present invention has been made in order to solve the above-mentioned problems, and the rotation speed of the output shaft 6 of the motor is changed by changing the voltage applied to the motor with time, and the wind of the blower is changed. It is an object of the present invention to provide an air conditioner that can approach the natural wind and reduce the discomfort of an occupant.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an air conditioner according to the present invention is a swingably supported blade that changes the direction of air blown from a blower. And a swinging means that swings the blade, a motor that drives the swinging means, and a random pattern voltage generation circuit that randomly changes the voltage applied to the motor over time, and randomly changes the rotation speed of the motor. It is characterized by being configured as described above.

[0012]

Based on the above structure, the air conditioner according to the present invention randomly changes the applied voltage applied to the motor by the random pattern voltage generation circuit with time to randomly change the rotation cycle of the shaft of the motor, and Reduces passenger discomfort by bringing the wind closer to natural wind.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a perspective view showing the configuration of the outlet of the air conditioner according to the present invention. It should be noted that the same components as those in FIGS. 6 to 8 are designated by the same reference numerals and the description thereof will be omitted.

At the outlet (swing grill) 1 of the air conditioner, as shown in FIG. 2, a plurality of register blades (not shown) swingably supported by a frame and the front surface of the register blade. Side upper and lower blades 11 which are arranged to be swingable in the vertical direction to change the blowing direction to the vertical direction, a swinging device 3 as a swinging means for swinging the register blade, and a swing switch 4 for instructing the swing of the register blade. And a random switch 12 are provided. The motor 5, the eccentric cam 7, and the elongated hole 9 of the rod plate 8 in the swing device 3 are provided on one side of the swing grill 1, and a control circuit and the like are housed under the motor 5. A circuit unit 13 is provided.

FIG. 1 is a block diagram showing the control circuit 14 housed in the circuit section 13.

The control circuit 14 includes a swing switch 4 and
Random switch 12 and random pattern generation circuit 1
5 and a swing pattern generation circuit 16, and the swing switch 4 selects application of voltage from the swing pattern generation circuit 16 to the motor 5, or the random switch 12 selects from the random pattern generation circuit 15 to the motor 5. It has become possible to choose to apply a voltage.

Further, the random pattern generation circuit 15 is
As shown in FIG. 3, a T1 generating circuit 17 for generating a random time T1, a T2 generating circuit 18 for generating a random time T2, ..., A T6 generating circuit 2 for generating a random time T6.
2, and a V1 generation circuit 2 for generating a motor applied voltage V1
3, a V2 generation circuit 24 for generating a motor applied voltage V2,
, And a V6 generation circuit 28 that generates a motor applied voltage V6, and the random times T1 to T6 and the motor applied voltages V1 to V6 change, for example, as shown in FIG.

Next, the operation of this embodiment will be described.
When the driver or passenger turns on the main switch (not shown) and turns on the swing switch 4, the control circuit 1
5, the power is supplied to the swing pattern generation circuit 16 of
The motor 5 starts rotating. Then, the eccentric cam 7 also rotates integrally with the output shaft of the motor 5, and the protrusion 7a of the eccentric cam 7
Moves in the long hole 9 formed in the rod plate 8 due to the change of the rotational position thereof, which causes the eccentric cam 7 to move.
Is changed to swing in the straight line AB direction, and the rod plate 8 swings in the AB direction. Then, when the rod plate 8 moves in the direction of the straight line AB, the register blade 2 swings around the swing axis of the central register blade 2 to the swing grill 1 to swing the air blown from the blower. At this time, the voltage applied to the motor 5 is a predetermined voltage as shown in FIG.

When the driver or fellow passenger turns on the random switch 12, the random pattern generation circuit 1
5, power is supplied to the random pattern generating circuit 15
Is a random time T1 to a random time T6 generated by the T1 generation circuit 17 to T6 generation circuit 22, as shown in FIG.
In addition, the V1 generating circuit 23 to V6 generating circuit 28 generate the motor applied voltage V1 to the motor applied voltage V6 and apply them to the motor 5. Then, the rotation cycle of the shaft 6 of the motor 5 changes at random so that the swing cycle changes, and the wind of the air blower approaches the natural wind, whereby the wind hit time is not constant and the occupant feels discomfort. Will disappear.

In the above embodiment, the random pattern is as shown in FIG. 4, but the present invention is not limited to this and other patterns may be used.

Further, although the random pattern generating circuit 15 and the swing pattern generating circuit 16 are provided in the above-mentioned embodiment, the swing pattern generating circuit 16 may be omitted.

[0022]

As described above, according to the present invention,
Since the applied voltage applied to the motor is configured to be randomly changed by the random pattern voltage generation circuit over time, the rotation cycle of the motor shaft can be randomly changed, and the wind of the blower can be brought close to natural wind. This makes it possible to reduce the occupant's discomfort because the time when the wind hits is not constant.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control circuit of an air conditioner according to the present invention.

FIG. 2 is a perspective view showing a configuration of an outlet of an air conditioner according to the present invention.

FIG. 3 is a block diagram showing a random pattern voltage generation circuit according to the present invention.

FIG. 4 is a time chart showing the operation of the present invention.

FIG. 5 is a time chart showing the operation of the embodiment.

FIG. 6 is a diagram showing an instrumental panel of a general automobile.

FIG. 7 is a perspective view showing a configuration of a blowout port portion of a conventional air conditioner.

FIG. 8 is a perspective view showing a conventional rocking device.

[Explanation of symbols]

 1 Blow-out Port Part 2 Register Blade 5 Motor 7 Eccentric Cam 8 Rod Plate 9 Long Hole 15 Random Pattern Generation Circuit

Claims (1)

[Claims] 1. A blower comprising: a swingably supported blade for changing the direction of air blown from a blower; a swinging means for swinging the blade; and a motor for driving the swinging means. An air conditioner for swinging air flow, characterized in that a random pattern voltage generating circuit for randomly changing a voltage applied to the motor over time is provided, and the rotation speed of the motor is randomly changed. .