JPH01314616A - On-vehicle swing louver - Google Patents

Abstract

PURPOSE:To enable a control to be assumed as required by crews, and thereby secure comfort by suspending the actuation of a drive means when the capacity of blow-off air is detected to have been equal to or more than a specified value in an air plenum for conditioned air, which is equipped with louvers the blow-off direction of which can be changed by a drive means. CONSTITUTION:A vent air plenum which blows off conditioned air from an air conditioner into a cabin is provided with a swing louver assembly 33 equipped with plural sheets of lateral fins 31 which are rotatable around a horizontal axis, and with plural sheets of vertical fins 32 which can be freely rocked around a vertical axis in the inner side of the lateral fins. The vertical fins 32 are designed to be reciprocated right and left via a connecting member 37 with a motor 38 actuated. In this case, when terminal voltage of a blower which is controlled by signals operated based on the output signals of variable types of sensors is detected, the capacity of air blasting (the capacity of blow-off air) is obtained by a control circuit (not shown). And when the capacity of air blasting is judged to have been equal to or more than a definite one, the motor 38 is controlled to be suspended.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a swing louver for a vehicle in an air conditioner for a vehicle.

(Prior Art) Conventionally, there has been known an air conditioner for a vehicle in which a louver is disposed at an outlet for blowing out conditioned air into a vehicle interior, and the louver is driven by a driving means to change the blowing direction. ing.

In such devices, a device has been proposed in which the swinging speed of the swing louver is changed according to the amount of air blown out, aiming at the comfort of air-conditioned air (for example, see Utility Model Application Publication No. 185120/1983). ).

(Problem to be Solved by the Invention) However, in such devices, when it is hot, the air volume is large and the conditioned air is constantly applied to the body, and when it is steady, the air volume is small and the air is intermittently applied. It is not possible to perform control that meets the passenger's request to have air conditioned air applied to his or her body.In other words, when the air volume is high, it is usually hot weather, and in such cases, the passenger has a desire to have air conditioned air applied to his or her body at all times. However, if the swing speed of the swing louver is simply changed according to the amount of air being blown out, the occupants may not feel any discomfort.Furthermore, when the amount of air is low, it is usually when the weather is very hot. In such cases, passengers would like to have air conditioned air applied to their bodies intermittently rather than constantly, and changing the swinging speed of the swing louver in accordance with the amount of air being blown out would not meet the passenger's needs. It is considered that it does not match.

The present invention has been made in view of these points, and an object of the present invention is to provide a swing louver for a vehicle that can perform control that meets the above-mentioned requirements of the occupant and has improved comfort.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the invention of claim 1 provides an air outlet for blowing out conditioned air into a vehicle interior, and a louver disposed at the air outlet for making the blowing direction variable. and a driving means for driving the louver, a blowout air volume detection means for detecting the blowout volume of the conditioned air, and an output of the blowout air volume detection means, and when a detected value of the blowout air volume detection means is equal to or higher than a predetermined value. and control means for stopping the operation of the drive means. That is, when the amount of air being blown is large and the occupant does not want to be exposed to the conditioned air intermittently, the driving of the louver is stopped.

The invention according to claim 2 provides an outlet for blowing out conditioned air into the vehicle interior;
a louver disposed at the air outlet and capable of changing the air blowing direction;
a driving means for driving the louver; a blowout air volume detection means for detecting the blowout volume of the conditioned air; an occupant detection means for detecting the seating position of the occupant; a louver position detection means for detecting the direction of the louver; When the detected value of the blown air volume detection means receives the output of the blown air volume detection means and is equal to or greater than a predetermined value, the direction corresponding to the seating position detected by the occupant detection means matches the direction detected by the louver position detection means. and a control means for stopping the operation of the drive means only when the drive means is activated. That is, when the amount of air blown is large, it is thought that the occupants want to be exposed to the conditioned air at all times, so the drive of the louver is stopped when the conditioned air is blown in the direction of the occupant's seating position.

(Function) Since the control means stops the movement of the driving means for driving the louvers when the air volume is high, the conditioned air does not intermittently hit the body of the occupant when the air volume is large. According to the invention, the control means stops the operation of the driving means for driving the louver when the blowing air volume is equal to or higher than a predetermined value.
If the direction corresponding to the passenger's seating position matches the direction of the Louvani, the light will always shine on the passenger's body, and the air conditioning will be controlled to meet the passenger's needs.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

In Fig. 1 showing the overall configuration of an automobile air conditioner, 1
is a professional unit, which has a blower No. 3 arranged in the ventilation passage 2 of the air conditioner, an inside air intake 4 opened in a floor panel (not shown), and a first outside air intake 5 opened on the lower side of the floor. Air is selectively taken in by controlling the inside/outside air switching door 6.

On the downstream side of the proa unit 1, a tala unit 8 having an evaporator 7, a heater unit 112 having a heater core 9, an air mix door 10, and a control door 11 are connected in order.

The heater unit 12 adjusts the temperature of the air blown from the pro unit 1 by adjusting the opening degrees of both doors 10 and 11, and the conditioned air is supplied to the vehicle interior from the vent outlet 13, the heat outlet 14, and the differential outlet 15. Note that each of the air outlets 13, 14, and 15 is provided with a vent door 16, a heat door 17, and a differential door 18, respectively, so that the air volume can be adjusted.

A compressor 20 forms a refrigeration cycle together with the evaporator 4, and is driven by an engine 21. An electromagnetic clutch 22 is attached to the drive shaft of the compressor 20.
A pulley 23 fixed to the crankshaft of the engine 21 is linked to another pulley 24 fixed to the crankshaft of the engine 21 via a belt 25.

Note that 91 is an instrument panel provided with a temperature control register 42 and a fan switch 43, which will be described later. 92 is a radiator, 93 is a capacitor, 9
4 is an air temperature sensor that detects the temperature of the inlet portion of the heater core 9; 95 is an actuator that controls the opening degree of the air mix door 10 and the control door 11 that controls the amount of air blown from the heater core 9; 96 is the vent door 16 and the heat door 17, an actuator that controls opening and closing of the differential door 18;

As shown in FIGS. 2 and 3, the vent outlet 13 has four horizontal fins 31 rotatably supported in a casing 30 around a horizontal axis, and an inner side of the horizontal fins 31. Four vertical fins 3 are supported so as to be able to swing around a vertical axis.
A swing louver 33 is provided.

The horizontal fin 31 is a horizontal fin joint 3 that extends in the vertical direction.
4, and the blowing direction in the vertical direction can be adjusted by the passenger grasping and operating a grip part 31a provided on the second horizontal fin 31 from the bottom among the horizontal fins 31. .

On the other hand, the vertical fins 32 are connected by a vertical fin joint 35 extending in the horizontal direction, and the joint 35 is connected to a connecting member 37 via a spring member 36.
7 is connected to a swing louver motor 38, and the swing louver motor 38 is driven to cause the vertical fins 32 to reciprocate in the left-right direction. Since the vertical fin joint 35 and the connecting member 37 are connected via the spring member 36, the vertical fin 32 can also be moved by passing a finger between the horizontal fins 32 and operating the vertical fin 32. Therefore, even when the swing louver motor 38 is stopped, the blowing direction in the left and right direction of the vertical fin 32 can be adjusted.

In Fig. 4 showing the automatic control system of an air conditioner, 41 is an auto control unit which receives a signal from a temperature control register 42 for temperature setting, a signal from a fan switch 43 for air volume setting, and a signal from a fan switch 43 for automatic setting. a signal from the auto switch 44, a signal from the auto switch 44 and the air conditioner switch 45 for operating the compressor 20, a signal from the water temperature switch 46 for detecting the water temperature of the heater core 8, and a signal from the swing louver switch 47, respectively. is input. Also input are signals from a solar radiation sensor 47 that detects the amount of solar radiation, an outside air sensor 48 that detects outside temperature, and a duct sensor 9 that detects compressor ON/OFF and intake switching temperature differences.

On the other hand, depending on these signals, the air mix door 10 and the compressor 20 are
The room temperature is controlled by controlling the fan motor 54, and the room temperature is detected by the indoor sensor 55, inputted to the auto control unit 41, and feedback-controlled to a desired room temperature. At the same time, the mode actuator 56 switches the mode, the intake actuator 57 switches the intake, and the air conditioner relay 58 switches the compressor 20 automatically.

In the case of a manual air conditioner, as shown in FIG. 5, the control unit 61 receives a signal from the temperature setting variable resistor 61 (temperature setting VR) for temperature setting
A signal from the fan switch 43 to set the air volume, a signal from the mode changeover switch 63 to set the mode, an inside/outside air changeover switch 64 to change between inside and outside air, a signal from the air conditioner switch 10-chi 45, and a swing louver. Each signal from the switch 47 is manually input.

On the other hand, depending on these signals, the air mix door 10 and the compressor 20 are
The room temperature is controlled by controlling the fan motor 54. Further, the mode actuator 56 switches the mode, the intake actuator 57 switches the inside/outside air switching door 7, and the air conditioner relay 57 switches the compressor 20.

Next, the processing by the control unit 41 or the control unit 61 will be explained with reference to FIG.

When starting, the fan switch 43 (fan S
It is determined whether or not W) is ON (step S1), and if it is ON, to confirm whether the swing louver switch 47 (swing louver SW) is in the ON position, OFF position, or auto position. First, turn off
If it is the OFF position, it is further determined whether the swing louver switch 47 is in the ON position (step S3).

Swing louver switch 47 is in the ON position.

If so, it is in the auto position, so it is then determined whether the conditioned air is in the vent mode in which the conditioned air is blown only from the vent outlet 13 (step S4); if it is not the vent mode, all the outlet outlets 13, Step S5)
, if it is the pie level mode, it is determined whether the air flow rate (outflow air volume) is greater than or equal to a certain value (step S6), and if the air flow rate is greater than or equal to the certain value, the swing louver motor 3
8 to stop the swing of the vertical fins 32 (step S7), and if the swing louver motor 38 is not greater than a certain value, the swing louver motor 38 is continued to be driven (step S8). As is well known, the terminal voltage of the blower 3 of the blower unit 1 is controlled by a comprehensive signal calculated based on the signals from the various sensors and the temperature control register 42 described above, so that the amount of air blown is changed accordingly. Therefore, the amount of air blown can be determined from the overall signal or the blower terminal voltage.

In step S1, the fan switch 43 is OFF, in step S2, the swing louver switch 43 is in the OFF position, or in step S5.
If it is determined that the mode is not the pie level mode, the process immediately moves to step S7, and the swinging of the vertical fins 32 is stopped.

If the swing louver switch 47 is in the ON position as determined in step S3, the process moves to step S8 and swings.

Note that if it is determined in step S4 that the mode is vent mode, the process immediately moves to step S6.

In addition, if necessary, the horizontal fins 31 and the vertical fins 32
It is also possible to change the blowing direction of the conditioned air by adjusting the wind direction.

In the above embodiment, the swing of the vertical fins 32 of the louver 33 is simply stopped, but it is also possible to stop the swing toward the passenger.

That is, in addition to the auto control unit 41 or the control unit 61 shown in FIGS. 4 and 5, the swing louver left position sensor 71L and the swing louver right position sensor 71R provided for the left and right swing louvers, respectively, and the passenger seat A signal from the seating sensor 73 is input, thereby controlling the drive of the left swing louver motor 38L and the right swing louver motor 38H.

As shown in FIGS. 7 and 8, the passenger seat seating sensor 73 is connected to a seating sensor 73A1 that detects by pressure that a person is seated on the passenger seat 76, and the buckles 78a and 78b of the seat belt 77 of the passenger seat. There is a seating sensor 73B etc. that detects seating.

Also, in this case, for example, the left swing louver is the ninth
As shown in the figure, each of the vertical fins 81 is connected to one lever 82, and furthermore, the vertical fins 81 are connected to one lever 82.
A left swingel-bar motor 38L for driving is connected to. The inner upper end of the support shaft 81a is formed lower than the outer side by a predetermined depth, and each
Two pins 81b are erected.

A pin hole 82a is provided near the lever 82 in its length direction.
A pin 81b of each vertical fin 81 is loosely fitted into the pin hole 82a, and each vertical fin 81 moves in response to the left and right movement of the L/bar 82, and its support shaft 81
It is designed to swing while maintaining the same swing position around a. Further, a square bar 82b is attached to the right end of the lever 82 and is perpendicular to the main body of the lever 82, and a square bar 82b is attached to the lower surface of the square bar 82b over its entire length.
A sliding groove 82c is formed by cutting out b.

On the other hand, the left swing louver motor 38L is installed with its rotating shaft facing vertically, and is also equipped with a multi-stage reduction gear 38a, and a disc 84 is attached to the output shaft 38b of the reduction gear 38a. fixed in a concentric position. Further, as shown in an enlarged view in FIG. 10, one pin 84a having a certain eccentric distance from the center of the disk 84 is protruded from the upper surface of the disk 84, and the pin 84a is attached to the square rod 82b.
is slidably and rotatably engaged with the sliding groove 82c.

That is, when the output shaft 38b rotates at a low speed due to the rotation of the left swing louver motor 38L, the pin 84a reciprocates within the sliding groove 82b, and the lever 82 reciprocates in the length direction of the air intake port. , each vertical fin 81 is made to swing around its support shaft 81a. Therefore, a drive mechanism 86 that swings the vertical fin 81 around the support shaft 81a is configured by the link mechanism 85 that converts the swing motion of the disc 84 and the lever 82, and the left swing louver motor 38L.

Next, a swing louver left position sensor 71L that detects the reciprocating position of the lever 82 is attached to a part of the lever 82, and the left position sensor 71L is attached to a support member 88 as shown in FIG. Built-in and fixed. This left position sensor 71L includes a main body 71a made of an insulator such as a polymeric material, and a slider 71b that is slidably supported in the horizontal direction and that protrudes downward from the main body 71a. We are prepared. Four signal terminals SO, Sl, S2 and S3 are extended on the upper surface of the main body 71a, and depending on the sliding position of the slider 71b, the reference signal terminal SO is connected to the other signal terminals 81 to S3. It is designed to conduct to one.

On the other hand, a fixing member 89 made of an insulating material is attached to the lever 82 at a position corresponding to the left position sensor 71L.
The fixing member 8 is integrally attached to sandwich the fixing member 8.
A slider 71b of the left position sensor 71L is supported at the lower part of the notch 89a formed shallowly in the upper part of the slider 9. Then, the slider 71b reciprocates together with the lever 82,
When the slider 71b is located on the right side, the left position sensor 7
When the signal terminals SO and SL of 1L are in a conductive state with each other and the slider 71b is located near the center, the signal terminal SO
, S2 are in a conductive state and when the slider 71b is located on the left side, the signal terminal 5O1S3 is in a conductive state. By switching the connections of the signal terminals 81 to S3 in this manner, the swing position of the vertical fin 81 is detected.

The signal from the left position sensor 71L is inputably connected to the control unit 41 or 61 of the vehicle, and the control unit controls the operation of the drive mechanism 86 in accordance with the signal from the left position sensor 71L. ing.

Note that the right swing louver is also configured in the same manner as the left swing louver.

The flow of processing of the control unit will now be explained with reference to FIG. 13.

First, when starting, the fan switch 43 (fan S
It is determined whether W) is ON (step 511), and
If so, it is determined whether the swing louver switch 47 (swing louver SW) is OFF or not in step 512.
), if it is OFF, it is further determined whether the swing louver switch 47 is ON (step 813).

If the swing louver switch 47 is not ON, it is in the auto position, so it is then determined whether it is in vent mode (step 514), and if it is not in vent mode, it is determined whether it is in pie level mode. If it is the pie level mode, it is determined whether the air flow rate is above a certain value (step 516), and if the air blow rate is above a certain value, the process moves to step S19. If not, the left and right swing louver motors 38
Keep driving L and 38R and continue swinging left and right, that is, swinging the left and right swing louvers (Step 5
18).

In step S19, the passenger seat seating sensor 73 (seating SW
) is ON or not, and if it is ON, there is a passenger sitting in the passenger seat, so the swing louver left position sensor 71L
It is determined whether the left position of is ON (step 520).

If it is ON, the conditioned air is hitting the passenger in the front passenger seat, so by stopping the drive of the left swing louver motor 38L, the left swing is stopped, that is, the swing of the left swing louver is stopped (step 521). , so that the passenger in the passenger seat is always exposed to air conditioned air. On the other hand, O
If it is FF, left swing/L/-/<- motor 38L
, and the left swing, that is, the swing of the left swing louver is continued (step 522), and the determination in step S20 is repeated until the left position of the swing louver left position sensor 71L is turned ON.

At the same time, the swing louver right position sensor 7
Step 823) Determine whether the right position of 1R is ON or not.
If it is ON, the air conditioner is blowing out from the right swing louver toward the driver, so the swing of the right swing louver is stopped by stopping the drive of the right swing louver motor 38H.Step 524 ), the driver is constantly exposed to air-conditioned air. If it is OFF, the drive of the right swing louver motor 38H is maintained and the swing of the right swing louver is continued (step 525), and the determination in step 323 is repeated until the right position of the swing louver right position sensor 71R is turned ON. .

On the other hand, if the passenger seat seating sensor 73 is OFF, no passenger is seated in the passenger seat, and there is no need to blow air conditioned air toward the passenger seat. Step 5: Determine whether the position is ON or not.
26) If it is ON, the conditioned air is blowing towards the driver, so stop the swing of the left swing louver (Step 527), so that the conditioned air from the left swing louver always hits the driver. , if it is OFF, the swing of the left swing louver is continued (step 828), and the determination in step S26 is repeated until the right position of the swing louver left position sensor 71L is turned ON.

The fan switch 43 is OFF in the determination in step S11, the swing louver switch 43 is OFF in the determination in step S12, and furthermore, the fan switch 43 is OFF in the determination in step S12.
If it is determined in step 5 that it is not the pie level mode, step S1
Immediately move to step 7 and stop the swinging of the left and right swing louvers.

The swing louver switch 43 is determined in step 813.
If it is ON, it means that it is not in the auto position but in accordance with the passenger's wishes, so the process moves to step 818 and continues swinging the left and right swing louvers.

Note that if it is determined in step S14 that the vent mode is set,
The process immediately moves to step S16.

(Effect of the invention) According to the invention of claim 1, the control means stops the operation of the driving means for driving the louvers when the blowout air volume is equal to or higher than a predetermined value, so that when the air volume is large, the conditioned air is not activated. It no longer hits the occupant's body intermittently, eliminating discomfort for the occupant.

According to the second aspect of the invention, the control means stops the operation of the drive means when the blowout air volume is equal to or higher than a predetermined value, but stops when the drive means is in a direction opposite to the seating position of the occupant. Therefore, when the air volume is large, the conditioned air constantly hits the occupant's body, resulting in air conditioning control that meets the occupant's needs.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall configuration diagram of an air conditioner, FIGS. 2 and 3 are a plan sectional view and a side sectional view showing the structure of a swing louver of the air conditioner, and FIGS. Fig. 5 is an explanatory diagram of the control unit, Fig. 6 is a flowchart showing the processing flow of the control unit, Figs. 7 and 8 are explanatory diagrams of the passenger seat seating sensor, and Figs. 9 to 12 are air conditioning FIG. 13, which is a diagram showing another structure of the swing louver of the device, is a flowchart showing the flow of processing of the controller in another embodiment. 13...Vent outlet, 33...Swing louver, 38.38L, 38R...Swing louver motor, 41...Auto control unit, 43...
Fan switch, 61...control unit, 7
1L...Swing louver left position sensor, 71R...
- Swing louver right position sensor, 73... Passenger seat seating sensor, 73A, 73B... Seating sensor 73' Fig. 5 Fig. 6

Claims (2)

[Claims] (1) An outlet for blowing out conditioned air into the vehicle interior, a louver disposed at the outlet to make the blowing direction variable, a driving means for driving the louver, and an outlet for detecting the volume of the conditioned air. A swing for a vehicle, comprising: an air volume detection means; and a control means that receives an output of the blown air volume detection means and stops the operation of the drive means when the detected value of the blown air volume detection means is equal to or higher than a predetermined value. louver. (2) An outlet for blowing out conditioned air into the vehicle interior, a louver disposed at the outlet to make the blowing direction variable, a driving means for driving the louver, and an outlet for detecting the volume of the conditioned air. An air volume detection means, an occupant detection means for detecting the seated position of the occupant, a louver position detection means for detecting the direction of the louver, and a detection value of the output air volume detection means based on the output of the air flow detection means is a predetermined value. In the above case, the control means may be provided to stop the operation of the drive means only when the direction corresponding to the seating position detected by the occupant detection means and the direction detected by the louver position detection means match. Features swing louvers for vehicles.