JPH06247136A - Air conditioner of vehicle - Google Patents

Abstract

PURPOSE:To prevent warm air stagnant in an air-conditioning unit or an air- conditioning duct from being blown on the faces or the like of occupants at the starting of the cooling operation, when the outside temperature is high in summer or the like. CONSTITUTION:When an ignition switch 61 is in the opening condition by turning OFF an ignition key when a driver gets out of a car, a control unit 45 drives an actuator 53 so as to advance a movable member 54. As a result, the vertical fins 51a and the lateral fins 51b of a louver means 51 are fluctuated to the direction where there is no occupant. Consequently, even though the occupant gets in again, turns ON the ignition key and operates an air conditioner, hot air stagnant in an air-conditioning duct 18 of the air conditioner blows out in the direction where no occupant is not present.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for vehicles such as automobiles.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 59-1851.
As described in Japanese Patent Publication No. 20, a louver means is provided at a blowout portion at the tip of an air conditioning duct, and the louver means is provided with a fin member swingably provided in a casing, and the fin member is swung. Therefore, an air conditioner for a vehicle is known which can blow out conditioned air in a direction desired by an occupant.

[0003]

However, during so-called parking when the air conditioner is temporarily stopped and the occupant gets out of the vehicle and gets on after a predetermined time has passed, during summer, the air conditioning unit and the air conditioning duct are heated by the solar heat. As the temperature of the air staying inside them rises, when the occupant gets on the vehicle again and operates the air conditioner, the warm air whose temperature has risen at the beginning of cooling is directed toward the occupant. It may be blown out toward you.

The present invention, when the outside temperature is high, such as in summer,
(EN) An air conditioner for a vehicle in which hot air staying inside an air conditioning unit or an air conditioning duct is prevented from hitting a passenger's face or the like at the start of cooling.

[0005]

According to a first aspect of the present invention, there is provided an air conditioner for a vehicle in which a louver means having a fin member swingably supported in a casing is provided at a blowout portion at a tip of an air conditioning duct. When a specific state detecting means for detecting a specific state of a vehicle, an actuator which is linked to a fin member of the louver means and swings the fin member, and an output of the specific state detecting means are received to detect a specific state of the vehicle And louver control means for swinging the fin member so that the fin member is oriented in a direction other than the occupant direction.

According to a second aspect of the present invention, in a vehicle air conditioner in which a louver means in which a fin member is swingably supported in a casing is provided at a blowout portion at the tip of the air conditioning duct, the temperature in the air conditioning duct is increased. Of the temperature detecting means for detecting the specific state of the vehicle, the specific state detecting means for detecting the specific state of the vehicle, the actuator linked with the fin member of the louver means for swinging the fin member, the temperature detecting means and the specific state detecting means. When the temperature in the air conditioning duct is equal to or higher than a predetermined temperature and a specific state of the vehicle is detected in response to the output, the actuator is controlled to swing the fin member so that the fin member is directed in a direction other than the occupant direction. The configuration is provided.

In the third aspect of the invention, the specific state detecting means is linked to the ignition switch and detects the open state of the ignition switch. According to a fourth aspect of the present invention, the solar switch is provided, and the solar switch is provided in the closed state of the solar switch to drive a solar fan by a solar cell provided in the roof part to ventilate the vehicle interior. Is connected to the solar switch and detects the closed state of the solar switch. The invention according to claim 5 has a temperature sensor for detecting the temperature inside or outside the vehicle compartment, and the specific state detection means is linked to the temperature sensor, and the temperature inside or outside the vehicle compartment is equal to or higher than a predetermined temperature. Is to detect.

According to a sixth aspect of the present invention, there is provided an air conditioner for a vehicle in which a louver means in which a fin member is swingably supported in a casing is provided at a blowout portion at a tip of an air conditioning duct. The fin member is made of a shape memory alloy so that the fin member faces away from the occupant when the temperature inside the vehicle exceeds a predetermined temperature.

Further, the invention of claim 7 is a vehicle air conditioner equipped with an air conditioner unit having a blower unit, which has a solar switch, and a solar cell provided on a roof portion when the solar switch is closed. With a solar device that drives a solar fan to ventilate the vehicle interior,
And a control unit which is linked to a solar switch of the solar device and operates a blower of the blower unit when the solar switch is in a closed state.

[0010]

According to the first aspect of the present invention, when the specific state of the vehicle is detected, the louver control means controls the actuator to swing the fin member in a direction other than the occupant direction.

According to the second aspect of the present invention, when the temperature inside the air conditioning duct is equal to or higher than a predetermined temperature and a specific state of the vehicle is detected, the louver control means controls the actuator so that the fin member is directed toward the occupant. Swing to face in a direction other than.

According to the third aspect of the invention, when the specific state detecting means detects that the ignition switch is in the open state, the actuator is actuated and the fin member is swung so that the fin member is directed to a direction other than the occupant direction. To be

According to the invention of claim 4, when the closed state of the solar switch is detected by the specific state detecting means, the actuator is actuated and the fin member is swung so that the fin member is directed to a direction other than the occupant direction.

According to the fifth aspect of the present invention, when the specific state detecting means detects that the temperature inside or outside the vehicle exceeds a predetermined temperature, the actuator is actuated and the fin member is moved in a direction other than the occupant direction. Be directed.

According to the sixth aspect of the present invention, the fin member of the louver means is deformed when the vehicle compartment temperature exceeds a predetermined value, and faces the direction other than the occupant direction.

According to the invention of claim 7, when the solar switch is closed and the solar fan is operating,
The control means actuates the blower of the blower unit to actively perform ventilation.

[0017]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1 showing an automobile equipped with an air conditioner, reference numeral 1 is an automobile, in which an air conditioner 4 for air conditioning in a vehicle compartment 3 is arranged in an engine room 2 at the front of the vehicle body.

As shown in FIG. 2, the air conditioner 4 has, in order from the upstream side, a blower unit 11 for pumping unadjusted air, and a cooler for cooling the unadjusted air pumped by the blower unit 11. Cooling unit 1
2. A heater unit 1 for selectively heating cooling air or unconditioned air that has passed through the cooling unit 12.
The air conditioning duct 18 for feeding the regulated air that has passed through the heater unit 13 and the heater unit 13, that is, the conditioned air, to the vehicle compartment 3 through each vent including the vent outlet 15, the heat outlet 16 and the defroster outlet 17. It is composed by.

The blower unit 11 has an outside air intake 21 connected to an outside air intake duct (not shown) and an inside air intake 22 communicating with the vehicle compartment 3 via a return duct (not shown). An air intake chamber 24 having an inside / outside air switching damper 23, a blower fan 25 for taking in outside air or inside air, that is, unconditioned air through the air intake chamber 24, and feeding the blower fan 25 to the downstream side. It is equipped with a blower motor 26 that is rotationally driven,
By adjusting the opening degree of the inside / outside air switching damper 23, one of the outside air and the inside air, or a mixture of both of the outside air and the inside air is pumped to the cooling unit 12.

The inside / outside air switching damper 23 is connected to an actuator (not shown) composed of an electric motor for driving the damper 23 to open / close.
All inside air circulation position (see the two-dot chain line) that closes the outside air intake 21 and opens the inside air intake 22 and all outside air introduction position that closes the inside air intake 22 and completely opens the outside air intake 31 (see solid line) ) And are taken.

The cooling unit 12 is equipped with a fin-tube type evaporator 31 connected to a compressor (not shown), and circulates the unadjusted air sent to the evaporator 31 by the blower unit 11 to the unadjusted air and the evaporator 31. It is configured to be cooled by heat exchange with the refrigerant to be cooled.

The heater unit 13 includes a heater core 32.
And the mixing dampers 33, 34 for adjusting the amount of air passing through the heater core 32. The heater unit 13 is controlled by setting the opening of the mixing dampers 33, 34.
It is configured to adjust the temperature of the conditioned air heated by. The mixing dampers 33 and 34 are each opened and closed by an actuator (not shown) such as an electric motor, and these actuators are operated based on the manual setting of the air conditioning mode setting switch of the operation panel.

The air conditioning duct 18 is equipped with a vent door 41, a heat door 42 and a defrost door 43 for switching to the air conditioning air blowing mode.
43 is connected to an actuator (not shown) such as an electric motor.

The air conditioner 4 has a control unit 45 (FIG.
The control unit 45 controls the actuator 53, which will be described later, as well as the doors 41 and 4 described above.
The actuators 2 and 43 and the inside / outside air switching damper 23 are controlled to operate, and the cooling unit 12 and the heater unit 13 are controlled to operate.

As shown in FIG. 3, vertical fins 51a and horizontal fins 51b, which serve as fin members, are provided at the tip of the air conditioning duct, specifically, at the vent outlet 15, as shown in FIG.
Louver means 5 which is swingably supported with respect to 1c.
1 is provided, and the tip end engaging portion 54a of the movable member 54, which is advanced and retracted by the actuator 53, engages with the engaging pin 52 provided upright from the horizontal fin 51b. Then, when the movable member 54 is advanced and projected by the driving of the actuator 53, the movable member 54 presses the engagement pin 52 to rotate the louver means 51 (see the chain double-dashed line in FIG. 3), and the vent Air is blown from the outlet 15 in a direction other than the direction of the occupant.

61 is ON / O by ignition key
An ignition switch for detecting FF, which is linked to the control unit 45.

Then, the ignition switch 61 is used.
Signal is received and the ignition is off,
The control unit 45 (louver control means) drives and controls the actuator 53 so that the vertical fins 51a and the horizontal fins 51b of the louver means 51 are swung so as to face in a direction other than the occupant direction, and the air conditioner is directed toward the occupant's face or the like. You can prevent the wind from blowing out.

Therefore, according to the above-described structure, when the driver gets off the vehicle 1, when the ignition key (not shown) is turned off, the ignition switch 61 is opened. Then, the control unit 45 receiving the signal from the ignition switch 61, for example, 5 to 5 after the ignition key is turned off.
After 10 minutes have passed, the actuator 53 is driven to move the movable member 54 forward to move the vertical fin 5 of the louver means 51.
The 1a and the horizontal fin 51b are swung in the direction in which no passenger is present.

As a result, even if the occupant gets on the vehicle again, the ignition key is turned on, and the air conditioner 4 is operated, the high temperature air accumulated in the air conditioning duct 18 of the air conditioner 4 is not occupied by the occupant. It is blown out in the direction.

After a lapse of a predetermined time, the control unit 45 drives the actuator 53 to drive the movable member 5.
4 is retracted, the tip end engaging portion 54a of the movable member 54
Louver means 51 based on the engagement relationship between the engagement pin 52 and the engagement pin 52.
The rocking prohibition of the (vertical fins 51a and the horizontal fins 51b) is released, and the occupant can turn the vertical fins 51a and the horizontal fins 51b toward the occupant so that the occupant receives the conditioned air directly on the face or the like. However, I do not feel any discomfort.

Further, in this case, a temperature sensor 62 for detecting the temperature in the air conditioning duct 18 is provided in the air conditioning duct 18, and if the temperature in the air conditioning duct 18 does not reach a predetermined temperature or higher, the conditioned air is blown by the occupant. Since the person does not feel uncomfortable even if the person receives it on the face, the actuator 53 can be controlled to operate only when the temperature inside the air conditioning duct 18 becomes equal to or higher than a predetermined temperature.

Further, the air conditioning duct 18 has
Instead of providing a temperature sensor 62 for detecting the temperature inside,
When the inside air temperature detection sensor 63 is provided in the vehicle interior or the outside air temperature detection sensor 65 is provided in the front portion of the radiator 64 (see FIG. 1), the air conditioning is performed when the temperature inside or outside the vehicle interior becomes equal to or higher than a predetermined temperature. Since it is estimated that the temperature of the air accumulated in the duct 18 or the like is higher than or equal to the predetermined temperature, the actuator 53 is activated only when the temperature inside or outside the vehicle is higher than or equal to the predetermined temperature. It can also be controlled.

Further, as shown in FIG. 4, the roof portion 71
A solar battery (not shown) is provided on the (sunroof), and a solar fan 73a provided in the trunk room 72 during parking,
In the case of an automobile having a ventilation device that drives the actuators 73b and 73b of the 73a by the solar cell to ventilate the interior of the passenger compartment 3 and prevent the temperature inside the passenger compartment 3 from rising, the ventilator is activated. When the solar switch 74 is closed, it is estimated that the outside air temperature is high and the temperature of the air in the air conditioning duct 18 is high. Therefore, when the solar switch 74 is closed, the actuator 53 is controlled to operate. You can also In addition, a first opening / closing switch 75 that opens between the actuator 53 and the solar cell and prohibits the operation of the actuator 53 when the blower is operated.
Is provided.

In each of the above embodiments, the conditioned air is prevented from flowing toward the occupant immediately after the start of cooling, but in addition, when the solar switch 74 is closed, the blower fan of the blower unit 11 is interlocked with it. By automatically operating 26 to perform ventilation, it is possible to control so that the temperature in the vehicle interior 3 does not rise too much. In this case, the second opening / closing switch 76 provided between the solar cell and the blower unit 11 is closed, and the blower fan 26
Can be driven by solar cells.

As shown in FIG. 5, the solar fan 72a
In order to improve the ventilation performance by the blower, a shutter door 81 is provided in the vicinity of the blower outlet 15 so as to be openable and closable, and a lever member 82 having a long hole 82a and a long hole 82a of the lever member 82 are provided.
L-shaped link member 83 with which the engagement pin 83a engages
Thus, the shutter door 81 takes an open position (see a chain double-dashed line in FIG. 5) and a closed position (see a solid line in FIG. 5), and when the blower fan 26 operates, the actuator 84 operates and moves. The member 85 is projected and the shutter door 81 is opened via the link member 83. When not needed, operate the lever member 82 to
It can be in the open position.

In the above embodiment, the direction of the fin member is changed in order to avoid the occupant from receiving the conditioned air having a high temperature. However, as shown in FIGS. The horizontal fin 91b behind the vertical fin 91a
Alternatively, the horizontal fins 91b may be configured to be deformed so as to guide the conditioned air in a direction other than the occupant direction when the temperature exceeds a predetermined temperature. That is, when the temperature does not exceed the predetermined temperature, it has a flat shape like a normal horizontal fin (see the solid line in FIG. 7). The direction is changed so that it is directed in a direction other than the occupant direction (Fig. 7).
See the chain double-dashed line).

When the temperature of the conditioned air drops due to the operation of the air conditioner 4, the horizontal fins 91b are cooled thereby, and the normal shape is restored. It should be noted that vertical fins can be similarly formed instead of the horizontal fins.

[0039]

As described above, according to the first aspect of the present invention, when the specific state of the vehicle is detected, the louver control means controls the actuator so that the fin member faces the direction other than the occupant direction. Since it is rocked, the warm air that has accumulated in the air conditioning duct during the summer etc. will not be blown out to the occupant's face etc. at the same time as the operation of the air conditioning unit, and it can be reliably removed without hitting the occupant's face etc. be able to.

According to a second aspect of the present invention, when the temperature inside the air conditioning duct is equal to or higher than a predetermined temperature and a specific state of the vehicle is detected,
The louver control means controls the actuator so that the fin member swings so as to face in a direction other than the occupant direction, so that the actuator is not inadvertently actuated, and it efficiently accumulates in the air-conditioning duct during the summer season. The hot air being blown can be prevented from being blown to the occupant's face or the like at the same time as the operation of the air conditioning unit.

According to the third aspect of the invention, when the specific state detecting means detects that the ignition switch is in the open state, the actuator is actuated and the fin member is directed to a direction other than the direction of the occupant. In the above, the warm air accumulated in the air conditioning duct will not be blown out to the occupant's face or the like at the same time as the operation of the air conditioning unit.

According to the fourth aspect of the invention, when the closed state of the solar switch is detected by the specific state detecting means, the actuator operates and the fin member is directed to a direction other than the direction of the occupant. The hot air being blown is not blown to the occupant's face or the like at the same time as the operation of the air conditioning unit.

According to the fifth aspect of the invention, when the specific state detecting means detects that the temperature inside or outside the vehicle exceeds a predetermined temperature, the actuator is actuated and the fin member is directed to a direction other than the occupant direction. Therefore, the hot air accumulated in the air conditioning duct in the summer or the like will not be blown to the occupant's face or the like at the same time as the operation of the air conditioning unit.

In the sixth aspect of the invention, the fin member of the louver means is formed of a shape memory alloy so that the fin member faces away from the occupant when the passenger compartment temperature exceeds a predetermined value. In such a case, the warm air collected in the air conditioning duct will not be blown to the occupant's face or the like at the same time as the operation of the air conditioning unit.

According to the seventh aspect of the invention, when the solar switch is closed and the solar fan is operating, the control means operates the blower of the air conditioning unit, so that high temperature air stays in the air conditioning duct. Therefore, the warm air accumulated in the air conditioning duct during the summer season will not be blown out to the occupant's face or the like at the same time as the operation of the air conditioning unit.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an automobile.

FIG. 2 is a schematic configuration diagram of an air conditioner.

FIG. 3 is a cross-sectional view near a vent outlet.

FIG. 4 is a schematic configuration diagram of a solar device.

FIG. 5 is a diagram showing a relationship between a vent outlet and a shutter door.

FIG. 6 is a view showing a normal state when the vertical fins are formed of a shape memory alloy.

7 is a cross-sectional view of the main part taken along the line VII-VII of FIG.

[Explanation of symbols]

 1 Automobile 4 Air conditioner 18 Air conditioning duct 45 Control unit (louver control means) 51,91 Louver means 51a, 91a Vertical fin (fin member) 51c Casing 53 Actuator 61 Ignition switch 62 Temperature sensor 63 Inside air temperature sensor 65 Outside air temperature sensor 71 Solar Switch 72a solar fan

Claims (7)

[Claims] 1. A specific state detection means for detecting a specific state of a vehicle in an air conditioner for a vehicle, wherein a louver means in which a fin member is swingably supported in a casing is provided at a blowout part at the tip of an air conditioning duct. And an actuator which is linked to the fin member of the louver means and swings the fin member, and when the output of the specific state detection means is received and a specific state of the vehicle is detected, the fin member is controlled by the actuator. An air conditioner for a vehicle, comprising: a louver control unit for swinging the louver so as to face in a direction other than the direction. 2. An air conditioner for a vehicle, wherein a louver means in which a fin member is swingably supported in a casing is provided at a blow-out portion at the tip of an air conditioning duct, and a temperature detection for detecting a temperature in the air conditioning duct. Means, a specific state detecting means for detecting a specific state of the vehicle, an actuator linked to the fin member of the louver means for swinging the fin member, receiving outputs of the temperature detecting means and the specific state detecting means,
When the temperature inside the air-conditioning duct is equal to or higher than a predetermined temperature and a specific state of the vehicle is detected, the actuator is controlled to swing the fin member so that the fin member is directed in a direction other than the occupant direction. A vehicle air conditioner. 3. The air conditioner for a vehicle according to claim 2, wherein the specific state detection means is linked to an ignition switch and detects an open state of the ignition switch. 4. A solar switch is provided, and the solar switch provided in the roof part drives a solar fan by the closed state of the solar switch to ventilate the interior of the vehicle. The air conditioner for a vehicle according to claim 2, wherein the air conditioner is linked to the solar switch and detects a closed state of the solar switch. 5. A temperature sensor for detecting the temperature inside or outside the vehicle compartment, wherein the specific state detecting means is linked to the temperature sensor to detect that the temperature inside or outside the vehicle compartment has reached a predetermined temperature or higher. The air conditioner for a vehicle according to claim 2, wherein 6. An air conditioner for a vehicle, wherein a louver means in which a fin member is swingably supported in a casing is provided at a blowout portion at the tip of an air conditioning duct, wherein the fin member of the louver means is a vehicle interior temperature. The vehicle air conditioner is characterized in that the fin member is formed of a shape memory alloy so that the fin member faces away from the occupant when the temperature exceeds a predetermined temperature. 7. An air conditioner for a vehicle, comprising an air conditioning unit having a blower unit, comprising: a solar switch, wherein a solar battery provided on a roof portion drives a solar fan when the solar switch is closed. An air conditioning system for a vehicle, comprising: a solar device for ventilating a vehicle interior; and a control unit that is linked to a solar switch of the solar device and operates a blower of the blower unit when the solar switch is closed. apparatus.