JPH072262Y2 - Air conditioner for vehicle - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a vehicle air conditioner, and particularly for a vehicle in which the amount of air blown out from the driver's seat side air outlet and the passenger's seat side air outlet can be adjusted separately. Air conditioner

(Prior art and its problems) As an air conditioner for a vehicle, a driver's seat side and a passenger's seat side vent air outlets or heat air outlets are individually adjusted in air volume or temperature to obtain the feeling of each occupant. For example, Japanese Patent Application Laid-Open No. 58-1262 discloses an air conditioner that can be adjusted according to
No. 09, JP-A-57-178914.

However, in the above-mentioned Japanese Patent Laid-Open No. 58-126209, a relatively large size is provided in the space inside the connecting portion between the outlet and the outlet duct of the unit for individually adjusting the air volumes on the driver's side and the passenger's side. Since a single air volume distribution door is provided, it is necessary to provide a considerably large space as a pivoting space for the door in the above space, and the passage to the heater unit or each outlet may be enlarged, and therefore the installation is required. There is a problem that it is difficult to mount the vehicle, which has a limited space, on the front part of the vehicle compartment.

In Japanese Patent Laid-Open No. 178914/1982, a pair of air mix dampers are provided on the blowout side of the heater core in order to adjust the blowout temperatures on the driver's side and the passenger's side respectively. Since there is only one sheet on each of the left and right sides, there is also the problem that the rotation space for the door becomes large. Furthermore, in both of the above-mentioned two prior arts, the air volume adjusting door or the air-mix damper does not completely close the passage to the vent outlet, and the passage to the vent outlet is provided separately from these doors or dampers. A door is provided to selectively open and close the passage to the heat outlet, which is a factor that hinders downsizing of the air conditioner.

In particular, with the high performance of vehicle engines in recent years, various functional parts have come to be installed in the engine room and occupy a large space in the engine room. For this reason, for example, the transmission connected to the engine may be disposed below the center of the front part of the vehicle compartment, that is, just below the heater unit of the air conditioner, so that the air conditioner can be downsized. Is needed. In addition, there is a demand for downsizing of the air conditioner because of the recent needs to make the passenger compartment as wide as possible and to give passengers a comfortable feeling.

(Purpose of the Invention) The present invention has been made in view of the above points, and it is possible to make the air conditioner compact to provide a large vehicle interior space, and to provide the passenger seats of the driver seat and the passenger seat. An object of the present invention is to provide an air conditioner for a vehicle capable of individually adjusting the amount of air blown from the left and right outlets so as to fit the ring.

(Means for Solving the Problems) In order to achieve the above object, the vehicle air conditioner according to the present invention has two ventilation paths for blowing air to the upper part and the lower part of the vehicle compartment. One of the ventilation paths of the heater unit, which is divided into mutually facing openings in the air conditioning duct portion on the downstream side of the heater core of the heater unit, and the left and right outlets that branch from the openings and into the vehicle compartment. In a vehicle air conditioner comprising a left-side air passage and a right-side air passage, each of which is provided in the air-conditioning duct portion of the heater unit facing each opening of the left-side and right-side air passages. And a left and right air volume distribution door mechanism for independently adjusting the opening degree of each opening over the range from fully closed to fully opened, and the opening degree of each opening to the passenger compartment. Depending on the amount of solar radiation on the left and right And a control means for controlling the left and right air volume distribution dosing mechanisms so as to have different opening degrees.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic configuration diagram of a vehicle air conditioner according to an embodiment of the present invention.

In the figure, an inside / outside air switching door 2 is disposed on one end side of an air conditioning duct 1, and a blower 3, an evaporator 5 connected to a compressor 4, and a heater core 6 are sequentially disposed on the downstream side of the door 2 for evaporation. The cool air that has passed through the container 5 is passed through the heater core 6 and the heater core 6 by the air mix door 7.
The temperature is controlled by adjusting the ratio with the bypass. At the other end of the air conditioning duct 1, a defroster opening 8 reaching a defroster outlet (not shown), a vent opening 9 reaching a vent outlet described later, and a heat opening 10 reaching a heat outlet not shown (see FIG. 2). 2) is provided in each of the openings 8, 9 and 10, and as shown in FIG. 2, a defroster door 11, a louver door (air amount distribution door) 12, and a heat door, which will be described later. 13 are arranged respectively. The distributor 14 constitutes the heater unit 18 together with the heat core 6.

On the other hand, the control unit 19 of the air conditioner includes a solar sensor 21a provided on the driver's seat side, a solar sensor 21b provided on the passenger seat side, and another sensor 22 for detecting outside air temperature, room temperature, evaporator temperature, and the like. Connected, the sensors 21a, 21b and 22 supply respective detection signals to the control unit 19. An indoor temperature setting device 23 is connected to the control unit 19, and the setting device 23 supplies a command signal to the control unit 19.

Further, a control lever L of a control panel P, which will be described later, is connected to the control unit 19, and when the opening of the louver door 12 is manually adjusted, the control lever L (Fig. 4) is operated. A command signal corresponding to the position of is supplied to the control unit 19.

The control unit 19 performs arithmetic processing based on the various input signals, and based on the arithmetic results, the motor actuator 31 of the compressor 4 and the louver door 12 which will be described later.
Output a signal for driving.

3 (a) and 3 (b) show the structure of the vent opening 9 and the vent outlet according to the present invention, and the louver door of the vent opening 9.
FIG. 12 is a view showing an actuation mechanism of 12, in which left and right vent air passages (left and right air passages) 15a and 15b partitioned by the central partition wall 24 from the vent opening portion 9 are branched respectively as shown in FIG. It extends to the central vent outlet 16a and the side vent outlet 17a as the right (driver's seat side) outlet, and the central vent outlet 16b and the side vent outlet 17b as the left (passenger seat side) outlet.

The vent opening 9 is provided with the louver door 12. The louver door 12 includes a pair of first louver doors (right air amount distribution doors) 12a arranged at the driver seat side opening (inlet of the right side air passage) 12a of the vent opening 9 and a passenger side opening (left side air passage). And a pair of second louver doors (left air volume distribution doors) 12b arranged at the entrance 9b. The pair of first louver doors 12a are rods 30a.
And the pair of second louver doors 12b are connected to each other by a rod 30b.

On the other hand, an operating mechanism 20 is drivably connected to the louver door 12. That is, as shown in FIG. 3B, the motor actuator 31 is connected to the drive lever 34 via the lever 32 and the rod 33, and the drive lever 34 is rotated to the heater unit casing 18a via the support shaft 34a. Installed as possible. Cam grooves 35a, 35b are formed on the surface of the drive lever 34 facing the casing 18a side, and the cam grooves 35a, 35b are formed.
5b includes pins 37a, 3 fixed to relay levers 36a, 36b.
7b are slidably fitted together. Each relay lever 36
The a and 36b are rotatably attached to the heater unit casing 18a at one end, and the other ends are connected to corresponding door levers 39a and 39b through corresponding rods 38a and 38b. One end of the door lever 39a is united with one of the pair of first louver doors 12a so as to be rotatable about a common rotation support shaft, and the other end of the other door lever 39b is also one of the pair of second louver doors 12a. To be rotatable around one of the louver doors 12b around a common rotation support shaft.
It is installed on 18a. Therefore, when one of the pair of louver doors 12a or 12b provided with the add lever 39a or 39b is rotationally displaced by the operation of the motor actuator 31, the other louver door of the pair is at the same opening degree via the rod 30a or 30b. It is rotated and displaced.

With the above configuration, the operating mechanism 20 of the louver door 12 operates as follows.

When the air conditioner is in the automatic control mode, the motor actuator 31 rotates its lever 32 based on a command signal from the control unit 19, and the drive lever 34 rotates via the rod 33, and the drive lever 34 rotates. 34 cam grooves 35a,
Since the pins 37a and 37b respectively move along the groove of 35b, the relay levers 36a and 36b rotate following the shapes of the cam grooves 35a and 35b, respectively. The rotation of the relay levers 36a, 36b is performed by rotating the door levers 39a, 39b of the louver doors 12a, 12b via the rods 38a, 38b to rotate one of the pair of louver doors 12a, 12b. The other of the pair of louver doors rotates via 30b.

Next, FIG. 4 is a diagram showing the operation of the louver doors 12a and 12b, and shows the relationship between the turning angle θ of the lever 32 of the motor actuator 31 and the door opening α.

In the figure, the operation of the first louver door 12a on the driver seat side and the operation of the second louver door 12b on the passenger seat side are shown by a solid line and a chain line, respectively.

When the rotation angle θ of the lever 32 of the motor actuator 31 is the minimum angle θ _MIN , both the first louver door and the second louver door are fully closed, and the lever 32 of the motor actuator 31 rotates from θ _MIN to θ _1. Then, only the first louver door rotates from fully closed to fully open. Next, when the lever 32 of the motor actuator 31 rotates from θ ₁ to θ ₂ ,
The first louver door remains fully open, and only the second louver door rotates from fully closed to fully open. That is, when the rotation angle of the lever 32 of the motor actuator 31 is θ ₂ , both the first louver door and the second louver door are fully opened.

When the lever 32 of the motor actuator 31 further rotates from θ ₂ to θ _3, only the first louver door rotates from fully open to fully closed, and the second louver door remains in the fully open state.
When the lever 32 of the motor actuator 31 further rotates from θ ₃ to the maximum angle θ _MAX , the first louver door remains fully closed and only the second louver door rotates from fully open to fully closed, and the lever of the motor actuator 31 moves. When the rotation angle θ of 32 is the maximum angle θ _MAX , both the first louver door and the second louver door are fully closed again.

As described above, in the first louver door and the second louver door, the rotation angle θ of the lever 32 of the motor actuator 31 is the minimum angle θ.
Both are fully closed when _MIN or maximum angle θ _MAX , and both are fully open when θ is θ ₂ . Further, by the action of the one actuator 31 and the two cam grooves 35a, 35b, the first louver door and the second louver door can be independently rotated.

In the configuration described above, the control unit 19 of the air conditioner outputs the output of the solar radiation sensor 21a on the driver side (right side) and the output of the solar radiation sensor 21b on the passenger side (left side) when in the automatic control mode. The rotation angle θ of the lever 32 of the mode actuator 31 is determined according to the output difference and a command signal is sent to the mode actuator 31.

That is, it operates as follows according to the output difference between the left and right solar radiation sensors. First, when only the right side solar radiation is strong and the left side solar radiation is very weak, the rotation angle θ takes an angle between θ _{MIN and} θ ₁ and only the first louver door opens depending on the rotation angle θ. Only the driver's seat is blown. When the solar radiation on the right side is slightly stronger than the solar radiation on the left side, the rotation angle θ takes on an angle between θ ₁ and θ ₂ , the first louver door remains fully open, and the second louver door on the other side has the rotation angle. It rotates in the opening direction according to θ and is also blown to the passenger seat on the left side. Next, when the solar radiation on the right side is slightly weaker than the solar radiation on the left side, the rotation angle θ takes an angle between θ ₂ and θ ₃ , and the rotation angle θ
Accordingly, the air blown to the driver's seat on the right side when the first louver door rotates in the closing direction is weakened, and the other second louver door remains fully open. Further, when the solar radiation on the right side is very weak and only the solar radiation on the left side is strong, the rotation angle θ is from θ ₃ to θ _MAX.
The first louver door remains fully closed, the second louver door rotates in the closing direction in accordance with the rotation angle θ, and only the left passenger seat is blown.

On the other hand, when the automatic operation / manual operation switch (not shown) is used to switch to the manual operation, that is, in the manual operation mode, the control lever L (FIG. 4) of the panel P mounted in the vehicle compartment is operated in accordance with the operation position. Is sent to the motor actuator 31, and the lever 32 of the motor actuator 31 is rotated to a rotation angle corresponding to the position of the control lever L.

However, in the automatic control mode, when the louver door 12 of the vent opening 9 is fully closed and the ventilation to the vent ventilation passages 15a and 15b is stopped, any of the vents other than the vent vent is opened. Is designed to
In the manual operation mode, there is a possibility that all the air outlets will be fully closed, which may cause a problem such as an overload on the blower 3 of the air conditioning duct 1.

Therefore, in the manual operation mode, the mode actuator
The rotation range of the rotation angle θ of the lever 32 of 31 is limited to the range of θ ₁ to θ ₃ as shown in FIG. 4 so that neither the first louver door nor the second louver door is fully closed. I have to.

As described above, according to the present invention, the vent opening 9 is provided with two louver doors 12a and 12b for the left side and the right side, respectively. , The rotation space of the door can be greatly reduced,
Therefore, the space of the distribution unit 14 can be further reduced.

In addition, the vent opening 9 and, therefore, the vent ventilation passage 15a or 1
Since the opening area (opening) of 5b is controlled by the air flow distribution louver door 12 to an arbitrary opening over the range from fully closed to fully opened, conventionally, the vent opening 9 is opened and closed to open the vent outlet. Since it is not necessary to provide a door for selectively opening and closing the heat outlet, and therefore, the pivot space for the door can be reduced, the air conditioner can be made compact.

Furthermore, since one motor actuator drives both the left and right louver doors at the same time, it is possible to reduce the installation space of the operating mechanism device and reduce the number of parts, which contributes to cost reduction.

In the above embodiment, two or more air volume distribution louver doors are provided in each of the left and right openings of the vent opening, but the present invention is not limited to this, and two or more are provided in each of the left and right openings of the heat opening. The louver door for air flow distribution may be provided.

(Effect of the Invention) As described in detail above, according to the present invention, one of the two ventilation paths for blowing air to the upper part and the lower part of the vehicle compartment has the left and right air volume distribution doors. It is arranged in the duct part of the heater unit on the lower side of the heater core facing the respective openings of the left and right air passages, and both distribution doors are fully closed independently of the opening of each of the left and right air passages. It is configured to be adjustable from the opening to the full opening, and since each of the openings can be fully closed at the same time on the left and right sides, a ventilation passage (vent) that is separate from the distribution door to the upper part of the vehicle compartment. It is not necessary to arrange a door for selectively opening and closing the air passage to the air outlet) and the air passage to the lower part of the passenger compartment (passage to the heat air outlet), and both air passages can be made smaller and smaller. And the omission of the separate door The number of parts can be reduced. Therefore, the size and cost of the entire air conditioner can be reduced, and as a result, the air conditioner can be easily mounted on the vehicle.

Further, since the left and right air volume distribution doors are collectively arranged at one place in the duct portion of the heater unit, the mechanism for adjusting the opening degree of both distribution doors is simplified.

Further, since the left and right air volume distribution doors are each composed of two or more doors, the pivot space of each of the left and right air volume distribution doors can be small. Therefore, it is possible to reduce the size of the duct portion of the heater unit in which the left and right air flow distribution doors are arranged and the inlets of the left and right air passages face, and as a result, it is possible to reduce the size of the entire air conditioner. Therefore, the device can be easily mounted on the vehicle.

In addition, air conditioning can be separately performed to suit the feeling of the occupants on the driver side and the passenger side.

[Brief description of drawings]

1 is a schematic view showing a vehicular air conditioner according to the present invention in a sectional view taken along the line BB of FIG. 2, and FIG. 2 is a sectional view taken in the line AA of FIG. 1 showing a heat unit of the air conditioner. FIG. 3 (a) is a schematic view showing the distribution section of the vent, FIG.
3 (b) is a sectional view taken along the line CC of FIG. 3 (a) showing the operating mechanism of the louver door at the vent opening, and FIG.
It is explanatory drawing for demonstrating operation | movement of the louver door of the vent opening part by the operation mechanism of FIG. Duct ...... 1, Heater core ...... 6, Inlet ...... 9a, 9b, Left and right air volume distribution doors ...... 12a, 12b, Left and right air passages ...... 15a, 15b,
Left and right outlets …… 16a, 16b, 17a, 17b, control means …… 19, actuating mechanism …… 20

Claims (1)

[Scope of utility model registration request] 1. An air-conditioning duct part on the downstream side of a heater core of a heater unit, wherein the system has two ventilation paths for blowing air to an upper part and a lower part of the vehicle compartment. In the air conditioner for a vehicle, the left side air passage and the right side air passage, which are divided from each other and face each other and have a left side air outlet and a right side air outlet, respectively, branching from the opening portion to the vehicle interior, And two or more doors provided in the air conditioning duct portion of the heater unit facing the respective openings of the right-side air passage, and the opening of each of the openings is independently closed from fully closed to fully opened. Left and right air volume distribution door mechanisms that are adjusted over a range, and the left and right air volume distribution door mechanisms so that the opening of each of the openings corresponds to the left and right insolation to the vehicle interior Control means for controlling Vehicle air conditioning system, characterized in that are provided.