JPH0712827Y2 - Vehicle air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a vehicle air conditioner, and in particular, to a structure for blowing cooling air or clean air sent from a cooler unit provided with an air purifier into a passenger compartment through a duct. Regarding

[Prior Art] The number of vehicles equipped with an air conditioner, which is a so-called air conditioner, has been remarkably increasing in order to keep the indoor environment in a state desired by an occupant and realize comfortable vehicle traveling. Regardless of this, it is possible to set the desired in-vehicle temperature and ventilation state.

In such vehicle air conditioners, especially car coolers,
In recent years, not only the blowing of cooling air but also the type with an air purifier (air purifier) that can purify the air inside the vehicle without opening the windows has been developed, enabling more detailed air conditioning control. is there.

FIG. 7 is a schematic view showing a vehicle air conditioner with an air purifying function, which is arranged in the rear seat of the vehicle.

The figure shows the inside of the vehicle as viewed from the front, and the right roof side outlet 1 and the left roof side outlet 2 are formed in the roof portion above the rear seat side, and the rear tray T is formed inside the vehicle below the rear window glass Rw. An upper back blow-out port 3 also serving as a cool box and an air purifier suction port 4 are arranged on the upper side.

FIG. 8 (A) is an external perspective view of the rear cooler unit structure used in the apparatus shown in FIG. 1, and FIG. 8 (B) is a partial side sectional view thereof. The air taken in through the filter 7 from the suction port 6 driven by the blower motor 5 is cleaned by the air purifier 8 or cooled by the evaporator 9, and then is rotated by the fan 10 to rotate both ducts 11 and 12. Through the roof side outlets 1 and 2 into the car.

FIG. 9 shows an AA cross section in FIG.

As described above, the duct 11 for guiding the air from the rear cooler unit has the body 13 on the right roof side behind the passenger compartment.
There is an opening at the blowout port where a part of the notch is removed.

A housing 14 is attached to the outlet,
A retainer 16 in which a seal material 15 is inserted in a gap between the duct 11 and the duct 11 is provided in the retainer 16. The retainer 16 has a plurality of fins arranged in line so as to determine a blowing direction of air sent into the vehicle interior. A bush 19 to which a rod 18 carrying 17 is slidably fixed is fitted and fixed.

Then, the fins 17 can be adjusted to a maximum of 65 by manual operation by the occupant.
The blast angle can be adjusted manually within a range of degrees.

Therefore, at the time of purifying air or blowing cold air, the occupant can manually adjust and change the blowing direction of the air by manually operating the fins 17.

[Problems to be Solved by the Invention] However, in such a conventional air conditioner,
As described above, since the wind direction of the air blown into the passenger compartment is completely controlled manually, the air will continue to be blown in the same direction unless the passenger operates the fins 17 to change the angle. Become.

For this reason, unless the passengers reach out and adjust the wind direction on a regular basis, the wind that is blown will continue to hit only a certain place.For example, if a cold wind continues to hit only a specific person, It causes inconvenience and, in extreme cases, damages health.

Furthermore, although there is no problem in the case of cold air blowing where the occupant desires cool air, when the air purifier only needs to be purified, that is, when the air purifier operates independently, it is not possible to directly apply the air from the air outlet to the occupant. This is not desirable, and there is a great demand for it, especially when the winter is cold.

However, in the above-mentioned conventional device, the adjustment of the direction of the outlet is entirely entrusted to the manual operation of the occupant, so that each time the air purifier is operated, the user considers the position of the occupant and specifies the angle each time. There was a problem in that it had to turn in the direction, and it had to be very troublesome and troublesome.

Purpose of the Invention The present invention has been made in view of the above conventional problems, and its purpose is to provide an air conditioner for a vehicle capable of automatically setting an optimum air flow direction mode required in accordance with operating conditions of an air purifier and a cooler function. To provide a device.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a cooling unit or a cooling unit having a blower motor and an air purifier built therein through a filter and cooling air and / or purified air introduced into a duct from an outlet. An air conditioner for a vehicle that blows air into a passenger compartment, the wind direction changing plate being rotatably and reciprocally disposed at the outlet, a drive unit that repeatedly reciprocally rotates the wind direction changing plate, and an operation of the cooler unit. Setting means for selectively setting the state to the cold air blowing mode or the air cleaning mode, and when the operating state of the cooler unit is in the air cleaning mode and the wind direction changing plate comes to a predetermined position, it is turned on and When the limit switch for stopping the operation of the drive means and the operation state of the cooler unit are in the air cleaning mode and the limit switch is in the off state, And a control unit for turning on the driving means when the cooler unit is in the cold air blowing mode.

[Operation] According to the device of the present invention configured as described above, when the cooler unit is in the cool air blowing mode, the wind direction changing plate is repeatedly reciprocally rotated by the driving means to change the wind direction of the cool air blown into the vehicle interior. By the swinging action of the plate, the air is evenly diffused and blown into the vehicle interior, and the inconvenience of overly hitting a specific person does not occur.

On the other hand, when only the air cleaning mode is selectively set, the wind direction changing plate moves until it hits the limit switch, and at the same time, it is fixedly held in that position.

Therefore, by adjusting the position of the limit switch, it is possible to set the wind blown into the passenger compartment during the air cleaning so as not to hit the occupant.

[Embodiment] A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the structure of a blowout part of a vehicle air conditioner according to the present invention.

In the figure, a housing 22 is attached to an outlet that is an opening of the duct 20 into the vehicle compartment, and a plurality of vertical blades 24 are provided in the housing 22 as a wind direction changing plate that determines a blowing angle of air sent into the vehicle. A barrel 26 is provided that is reciprocally rotatable within a predetermined angle range.

In a conventional air conditioner, a blade that determines the air flow direction
All of the 24 angle operations must be adjusted manually by the occupant each time.Therefore, for example, the control to keep the cold air blown out evenly throughout the vehicle, like the swinging action of a fan, is performed. There is an inconvenience that the adjustment cannot be performed and that the air blown during the operation of the air purifier must be adjusted manually so as not to hit the occupant.

A feature of the present invention is to realize a vehicle air conditioner that can be automatically adjusted to an optimum air blowing (angle) mode according to the operating conditions of an air purifier and a cooler without bothering an occupant. As a result, the occupant can be freed from the troublesome work that involves the mental pain of having to operate the blade of the air outlet every time the cooler or air purifier is turned on, and the air conditioning environment inside the vehicle is always comfortable. It can be held.

In FIG. 1, the housing 22 has a geared motor 28.
Are supported and fixed, and a retainer 30 is fixed to the housing 22.

A cam 32 for converting its rotation into a linear motion is connected to the rotation shaft of the geared motor 28, and the cam 32 has a rod.
34 is slidably connected in the longitudinal direction of the retainer 30.

A clutch case 40 is placed and fixed on the rod 34, and a clutch arm protruding from the clutch case 40
42 is provided so as to be reciprocally slidable with a constant stroke in the same direction as the linear movement of the rod 34.

The clutch arm 42 is connected and fixed to the blade 24 in the barrel 26, whereby the clutch case 40 and the clutch arm 42 apply the driving force from the geared motor 28 to the blade.
It is understood that it plays a clutch function when transmitting to 24.

As is apparent from FIG. 2 showing a partial cross section of FIG. 1, a limit switch 52 for restricting the reciprocating rotation angle of the blade 24 described later is arranged at a predetermined position on the clutch case 40. .

Although not shown in the figure, a swing switch for starting the geared motor 28 and instructing the swing (reciprocal rotation) action of the blade 24 is incorporated.

As shown in FIG. 3B, a long hole 34a is cut in the rod 34, and when the cam 32 is fitted in the long hole 34a, the rotation of the cam 32 in the arrow direction causes a straight line of the rod 34. It will be converted into movement.

The operation of the device of the present invention constructed as above will be described below.

As described above, the device of the present invention has both the cooler function and the air purification function, and is characterized in that it is automatically set to the airflow direction adjustment mode of the outlet according to the respective operating conditions.

For this purpose, the determination circuit shown in FIG. 3 is built in, and the output is turned on / off, that is, the blade is swung (swing) at the outlet in response to an input signal from the air conditioner (component) to the determination circuit. Have decided whether to do.

A logic table of the input / output of the decision circuit is shown in FIG. From the figure,
Whether or not the determination circuit issues an operation command to the geared motor 28 is omitted in FIGS. 1 and 2, but a swing switch for instructing the swing action of the fan, evaporator, and blade 24 incorporated in the air conditioner. , And it is understood that it depends on whether or not each element of the limit switch 52 that restricts the operating range of the clutch arm is activated.

FIGS. 5A to 5D are schematic simplified diagrams showing the constituent actions of each of these elements.

First, if the fan is off, it means that both the cooler function and the air cleaning function are stopped, so the judgment circuit output is naturally off, and the evaporator is also stopped at this time.

If the evaporator is off, the fan is on, and the limit switch is off, it means that the air cleaning mode has been set and the blade is ready for operation.At this time, the judgment circuit output is turned on. It

Next, if the evaporator is off and the fan is on, but the limit switch is on, the clutch arm has reached the limit of its range of motion, which is specific to avoid blowing air on the occupants in air cleaning mode. Since it is a case where the clean air is to be sent out only in the position direction, the judgment circuit output is turned off in this case.

Further, even if the evaporator and the fan are turned on, if the swing switch is turned off, the occupant's intention does not require the swing action of the blade. Therefore, in this case as well, the determination circuit output is naturally off. Of course, if all of the fan, evaporator and swing switch are turned on, the determination circuit output is also turned on.

In this way, it is determined whether or not the blade 24 performs the swinging action, and in the case of performing the swinging action, the rotational movement of the geared motor 28 is transmitted to the cam 32 supported by the shaft, and the cam 32 causes the rod 34 to move in the left-right direction in FIG. Will be converted into a linear motion to.

As described above, the clutch case 40 is placed and fixed on the rod 34, and the blade 24 repeatedly and reciprocally rotates by a predetermined angle through the clutch arm 42 that moves integrally with the clutch case 40, thereby to cool the cooler. Purified air or cooling air sent from the unit through the duct can be uniformly and uniformly blown into the passenger compartment.

The blowing action by the continuous reciprocating rotation of the blade 24 is suitable in the case of the cooler mode aiming to receive the wind, but when it is desired to only purify the air instead of receiving the wind, the blowing port It is not preferable that the wind sent from the vehicle into the passenger compartment hits the passenger. This is a problem especially when the winter is cold.

Therefore, in the present invention, as described above, the limit switch for restricting the operating range of the clutch arm 42 is used.
52 is disposed and fixed on the retainer 30, whereby the clutch arm 42 abuts the limit switch 52 and the angle of the blade 24 can be fixed at that position at the point where the limit switch 52 is turned on. By setting the position of the limit switch in an arbitrary place in advance, it is possible to set the blowing air in the air cleaning mode so as not to hit the occupant.

That is, the third stage in the logical table of FIG. 4 corresponds to the situation in which it is desired to only purify the air without applying the blowing air to the occupant, and at this time, the fan is turned on to send the purified air into the passenger compartment. However, the evaporator is turned off because the cooler function is unnecessary. When the operation of the air cleaning mode starts in this state, if the clutch arm and the limit switch are apart at this start, the state is the same as that of the second stage mode, so the blade 24 moves by that distance. Then, the clutch arm contacts the limit switch and the limit switch is turned on, and at the same time, the determination circuit output is turned off, the swinging action of the blade 24 is stopped there, and the angle of the blade is set at that position, that is, preset. The occupant will be kept at an angle that does not hit the wind.

Of course, even when the cooler function or the cooler function and the air cleaning function are simultaneously operated, the swing action of the blade 24 can be arbitrarily stopped by turning off the swing switch.

Although the limit switch is fixed on the retainer in the above-described embodiment, the present invention is not limited to this. For example, as shown in FIG.
Allows sliding on the same axis and adjusts its position on the housing
It is also preferable to configure so that the above can be performed.

According to this, the wind direction can be adjusted by this operation during the manual adjustment, and the wind direction during the air purifier operation can be fixed at the position selected by this operation.

[Effects of the Invention] As described above, according to the present invention, a function for automatically adjusting the blowing angle of the air outlet of the air conditioner is provided, and on / off control of the swing mechanism is performed according to the operating conditions of the cooler function and the air cleaning function. In addition, in the air cleaning mode, the blade angle is automatically fixed in a fixed direction so that the wind is not applied to the occupant so that it is automatically controlled. A vehicular air conditioner capable of eliminating the trouble of adjusting the blowing direction and always maintaining a comfortable in-vehicle environment without manpower is realized.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an air outlet of a vehicle air conditioner according to the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is a configuration diagram of a determination circuit, and FIG. Output logic diagram, FIG. 5 is a configuration diagram of each element for supplying an input signal to the determination circuit, FIG. 6 is a configuration diagram showing a second embodiment of the present invention, FIG. 7 is a schematic diagram of the above device, and FIG. FIG. 9 is a concrete configuration diagram of the apparatus shown in FIG. 1, and FIG. 9 is a sectional view taken along the line A / A in FIG. 20 …… Duct 24 …… Blade 28 …… Geared motor 32 …… Cam 34 …… Rod 52 …… Limit switch

Continuation of the front page (72) Inventor Seiwa Seiwa 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (72) Inventor Makoto Miura 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (56) References JP 6117845 (JP, A) Actual development 48-24251 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. An air conditioner for a vehicle, which blows cooling air and / or purified air introduced into a duct through a filter from a cooler unit having a blower motor and an air purifier into an interior of a vehicle. A wind direction changing plate disposed at the mouth so as to be reciprocally rotatable, a drive unit for repeatedly rotating the wind direction changing plate in a reciprocating manner, and a setting for selectively setting an operating state of the cooler unit in a cool air blowing mode or an air cleaning mode. Means, a limit switch for operating the drive means to stop the operation of the drive means when the operating state of the cooler unit is in the air cleaning mode, and the wind direction changing plate has come to a predetermined position, When the operating condition is the air cleaning mode and the limit switch is off, and the operating condition of the cooler unit is cold air blowing. In the case of over-de, air conditioning system and having a control unit that turns on operating the drive means.