JP4285635B2 - Air conditioner for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a left-right independent control type vehicle air conditioner that supplies independent temperature-controlled air to a driver side and a passenger side.
[0002]
[Prior art]
Conventionally, in a vehicle air conditioner, a technique has been proposed in which temperature-controlled air is controlled independently on the left and right sides of a driver side and a passenger side (assist side) in accordance with a set temperature of an occupant. This type of vehicle air conditioner is, for example, as disclosed in Patent Document 1, with a partition that divides the air conditioning duct into a pair of air conditioning ducts on the downstream side of the cooling unit, and intermediate between the air conditioning ducts. A pair of air mix dampers that independently adjust the air flow to the installed heater core, and the temperature control air that is temperature-controlled independently by each air mix damper is communicated to each air conditioning duct. The left and right defroster air outlets (front seat air outlets), foot air outlets, ventilator air outlets, and the like are supplied to the vehicle interior.
[0003]
Further, in the vehicle air conditioner, an upper ventilator outlet (rear seat outlet) for supplying temperature-controlled air to the rear seat for the purpose of improving the comfort of not only the front seat occupant but also the rear seat occupant. ) Has been proposed on the instrument panel. The rear seat outlet used in this type of vehicle air conditioner is, as disclosed in Patent Document 2, for example, opened at the center in the vehicle width direction on the instrument panel and upward in the rear of the vehicle interior. The air conditioning duct is connected to the ventilator air outlet and the temperature-controlled air branched from the ventilator duct is guided to the rear seat air outlet.
[0004]
Furthermore, in recent years, as a vehicle air conditioner, a left and right independent control type vehicle air conditioner having a rear seat outlet on an instrument panel has been proposed. In this type of vehicle air conditioner, the rear seat outlet is generally connected to the left and right ventilator ducts via a single air mix duct, branched from each ventilator duct and mixed in the air mix duct. The temperature-controlled air (mixed air) is guided to the rear seat passengers.
[0005]
[Patent Document 1]
JP-A-11-20456 [0006]
[Patent Document 2]
Japanese Patent Laid-Open No. 2000-94925
[Problems to be solved by the invention]
By the way, in the vehicle air conditioner provided with the rear seat outlet as described above, when the passenger is not in the rear seat, the temperature control air from the rear seat outlet is adjusted to the front passenger (front seat). It is desirable that the rear louver of the rear seat outlet is configured to be capable of adjusting the wind direction to the left and right.
[0008]
However, in a left and right independently controlled vehicle air conditioner equipped with a rear seat outlet, the temperature control air supplied from the rear seat outlet to the passenger compartment is generally mixed air from the left and right ventilator ducts. Therefore, supplying such mixed air to the driver or passenger in the front seat may give the passenger a sense of incongruity. In particular, when the set temperatures on the left and right are significantly different, the temperature of the mixed air supplied from the rear seat outlet is greatly different from the intended one of the driver and passenger. Supplying wind) to the front seat occupant may cause a sense of incongruity to the occupant.
[0009]
The present invention has been made in view of the above circumstances, and is a left and right independent control type vehicle air conditioner capable of adjusting the temperature independently on the driver side and the passenger side. An object of the present invention is to provide a vehicle air conditioner capable of supplying an appropriate temperature-controlled air according to each set temperature when the outlet is used for an occupant receiving temperature-controlled air separately set on the left and right. And
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the invention according to claim 1 has an air conditioning duct in which a right occupant side air conditioning duct part and a left occupant side air conditioning duct part are partitioned, and each of the air conditioning duct parts is independent of each other. In the vehicle air conditioner capable of separately supplying the temperature-controlled air temperature adjusted to the passenger compartment on the right occupant side and the left occupant side, the right occupant air conditioning duct unit and the left occupant air conditioning duct unit communicate with each other. And a louver capable of adjusting the direction of the temperature-controlled air blown from the air outlet between the right occupant side and the left occupant side, and the right occupant air conditioning duct portion when the louver is in a neutral position And the left occupant-side air conditioning duct portion communicates equally with the air outlet, and when the louver is tilted to the right occupant side, the communication between the left occupant air conditioning duct portion and the air outlet is limited, The louver is tilted toward the left occupant Characterized in that a temperature-adjusted air switching means for limiting the communication between the right passenger side air-conditioning duct and the air outlet when you are.
[0012]
According to a second aspect of the present invention, there is provided the vehicle air conditioner according to the first aspect of the present invention, wherein the temperature control air switching means is interposed between the right air conditioning duct, the left air conditioning duct and the outlet. A temperature control wind switching door swinging in the air mix duct, wherein the temperature control wind switching door is linked to the louver via a link mechanism.
[0013]
According to a third aspect of the present invention, there is provided the vehicle air conditioner according to the first aspect , wherein the temperature control air switching means is interposed between the right air-conditioning duct, the left air-conditioning duct and the outlet. A temperature-controlled air switching door that swings through the door drive means in the air mix duct, wherein the door drive means is based on a signal from an angle detection means for detecting a tilt angle of the louver. The air conditioning switching door is driven.
[0014]
The vehicle air conditioner according to a fourth aspect of the present invention is the vehicle air conditioner according to the second or third aspect, wherein the temperature-controlled air switching door has a rib at an end on the outlet side. It is characterized by.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 relate to a first embodiment of the present invention, FIG. 1 is a schematic configuration diagram of a vehicle air conditioner, FIG. 2 is a perspective view of an instrument panel, and FIG. It is operation | movement explanatory drawing.
[0016]
In FIG. 1, reference numeral 1 denotes a left and right independent control type vehicle air conditioner that can supply independent temperature-controlled air to the driver side and the passenger side based on input from the operation panel 4. Has an air-conditioning duct 3 housed in an instrument panel 2 (see FIG. 2).
[0017]
On the most upstream side of the air-conditioning duct 3, a pair of inside air suction ports 5 for taking in air in the vehicle interior and an outside air suction port 6 for taking in air outside the vehicle compartment are opened. An intake door 7 is provided. An intake door actuator 8 composed of a servo motor or the like is connected to the intake door 7, and the intake door 7 is appropriately rotated by the intake door actuator 8.
[0018]
In the air conditioning duct 3, a blower fan 10 and a cooling unit 11 are sequentially arranged on the downstream side of the inside and outside air suction ports 5 and 6.
[0019]
The blower fan 10 is rotatably accommodated in a scroll case formed in the air conditioning duct 3. A blower motor 10 a is connected to the blower fan 10, and the blower fan 10 rotates the blower fan 10 according to the applied voltage so that the blower fan 10 generates a predetermined air flow in the air conditioning duct 3. It has become.
[0020]
The cooling unit 11 is exposed over the entire surface of the air conditioning duct 3 on the downstream side of the blower fan 10. The cooling unit 11 constitutes a refrigeration cycle together with a compressor or the like (not shown), and cools and dehumidifies the circulating air when the compressor is turned on.
[0021]
Further, on the downstream side of the cooling unit 11, there is provided a partition wall 17 that partitions the air conditioning duct 3 into a driver side air conditioning duct portion 15 and a passenger side air conditioning duct portion 16 along the air flow direction. A heater core 18 is disposed in the middle of the duct portions 16 and 17.
[0022]
The heater core 18 is partially exposed in the middle of the air conditioning duct portions 15 and 16 on the downstream side of the cooling unit 11. The heater core 18 heats the circulating air by using engine coolant (not shown) as a heat source.
[0023]
Air mix dampers 19 and 20 are disposed in the vicinity of the heater core 18 in the air conditioning duct portions 15 and 16. Damper actuators 21 and 22 each composed of a servo motor or the like are connected to the air mix dampers 19 and 20, respectively, and the air mix dampers 19 and 20 are individually rotated by the damper actuators 21 and 22. It is like that.
[0024]
Further, in the driver side air conditioning duct portion 15, a defroster duct 25, a foot duct 27, and a ventilator duct 29 are communicated with the downstream side of the heater core 18, and downstream of these ducts 25, 27, 29 are connected to each other. A defroster outlet 35, a foot outlet 37, and a ventilator outlet 39 (see FIG. 2) disposed on the driver side on the instrument panel 2 are communicated with each other. Further, in the driver side air conditioning duct section 15, a defroster damper 45, a foot damper 47, and a ventilator damper 49 are disposed in the vicinity of the upstream ends of the ducts 25, 27, and 29. Each of the dampers 45, 47, and 49 is provided with actuators 55, 57, and 59 each including a servo motor, and the dampers 45, 47, and 49 are individually rotated by the actuators 55, 57, and 59. It comes to be moved.
[0025]
Similarly, a defroster duct 26, a foot duct 28, and a ventilator duct 30 are communicated with the downstream side of the heater core 18 in the passenger-side air conditioning duct unit 16. The defroster outlet 36, the foot outlet 37, and the ventilator outlet 40 (see FIG. 2) arranged on the passenger side on the instrument panel 2 are communicated with each other. Further, in the passenger-side air conditioning duct section 16, a defroster damper 46, a foot damper 48, and a ventilator damper 50 are disposed in the vicinity of the upstream ends of the ducts 26, 28, and 30. Each of the dampers 46, 48, 50 is connected to each of the actuators 56, 58, 60 constituted by servo motors, etc., and the dampers 46, 48, 50 are individually rotated by the actuators 56, 58, 60. It comes to be moved.
[0026]
In addition, a single air mix duct 65 is communicated between the ventilator ducts 29 and 30, and a rear seat air outlet 66 serving as an air outlet is communicated downstream of the air mix duct. . That is, the rear seat outlet 66 communicates with the driver side air conditioning duct portion 15 and the passenger side air conditioning duct portion 16 via the air mix duct 65. Here, the rear seat outlet 66 is mainly for supplying temperature-controlled air to the rear seat occupant, and is opened at the center in the vehicle width direction on the instrument panel 2 toward the rear upper part of the vehicle interior. (See FIG. 2).
[0027]
Further, the temperature control air blown from the rear seat outlet 66 is supplied to the front seat occupant (front seat driver or passenger) as needed. Thus, a louver 67 capable of adjusting the direction of the temperature-controlled air between the driver side and the passenger side is provided.
[0028]
Further, inside the air mix duct 65, a temperature control air switching door 70 as a temperature control air switching means for switching the communication state between the air conditioning duct portions 15 and 16 and the rear seat outlet 66 is swingable. The temperature control air switching door 70 is connected to the louver 67 via the link mechanism 71.
[0029]
The link mechanism portion 71 is slidably connected to the cam groove 73, the arm portion 72 swinging integrally with the louver knob 69, the cam groove 73 provided in the temperature control air switching door 70, and the free end of the arm portion 72. And a cam pin 74 to be configured. The temperature-controlled air switching door 70 is operated by the link mechanism portion 71 to change the communication state between the air conditioning duct portions 15 and 16 and the rear seat outlet 66 according to the air direction adjusted by the louver 67. It is supposed to switch to.
[0030]
More specifically, in the present embodiment, when the louver 67 is in the neutral position, the temperature control air switching door 70 is positioned in the neutral position, and the driver side air conditioning duct portion 15 and the passenger side air conditioning duct portion 16 are reared. It communicates equally with the seat outlet 66 (see FIGS. 1 and 3A).
[0031]
Further, when the louver 67 is tilted to the driver side by the operation of the louver knob 69, the temperature control wind switching door 70 is tilted to the passenger side through the link mechanism portion 71, and the ventilator duct 30 (that is, the passenger side air conditioning duct portion 16). And the rear seat outlet 66 are restricted (see FIG. 3B). As shown in the figure, when the amount of tilt of the louver 67 toward the driver side is maximum, the temperature control air switching door 70 is configured to block communication between the passenger side air conditioning duct portion 16 and the rear seat outlet 66. It has become.
[0032]
On the contrary, when the louver 67 is tilted to the passenger side by the operation of the louver knob 69, the temperature control air switching door 70 is tilted to the driver side through the link mechanism portion 71, and the ventilator duct 29 (that is, the driver side air conditioning duct portion 15). ) And the rear seat outlet 66 are restricted (see FIG. 3C). As shown in the figure, when the amount of tilt of the louver 67 toward the passenger side is maximum, the temperature control air switching door 70 is configured to block communication between the driver side air conditioning duct portion 15 and the rear seat outlet 66. It has become.
[0033]
Here, as shown in FIG. 1, in order to effectively realize the supply of temperature-controlled air to the rear seat passenger when the louver 67 is set to the neutral position, the louver 67 should be of a diffusion type. Is desirable. Further, as shown in FIG. 3A, when the temperature control air switching door 70 is in the vicinity of the neutral position, a turbulent flow is generated in the air mix duct 65 to control the temperature control air from the air conditioning duct portions 15 and 16. Is preferably provided with ribs 75 at the end on the rear seat outlet 66 side.
[0034]
Next, the control system of the vehicle air conditioner 1 will be described.
[0035]
In FIG. 1, the code | symbol 80 shows an air-conditioning control apparatus. The air conditioning control device 80 is housed inside the instrument panel 2 and is constituted by a known microcomputer including a CPU, a ROM, a RAM, and the like.
[0036]
The air conditioning control device 80 is connected to the operation panel 4 and various sensors such as a temperature sensor, a solar radiation amount sensor, and a water temperature sensor (not shown). The air conditioning control device 80 sets the suction mode to the air conditioning duct 3, the blowing mode from the air conditioning duct 3 and the like based on various signals from these switches and sensors, and the amount of air blown from the air conditioning duct 3 The target temperature and the like on the driver side and passenger side are set.
[0037]
The air conditioner control device 80 is connected to the above-described various actuators 8, 21, 22, 55, 56, 57, 58, 59, 60, the blower motor 10a, and the like, and operates based on the above-described various settings. It comes to control.
[0038]
More specifically, the air conditioning control device 80 selectively opens and closes the inside and outside air intake ports 5 and 6 by controlling the rotation of the intake door 7 through the intake door actuator 8, and the air to the air conditioning duct 3 is opened and closed. For example, the suction mode is set to the inside air circulation mode or the outside air introduction mode.
[0039]
In addition, the air conditioning control device 80 controls the blower motor 10a drive control to control the amount of temperature-controlled air blown from the air conditioning duct 3.
[0040]
Further, the air conditioning control device 80 individually controls the amount of air flowing through the heater core 18 in each air conditioning duct portion 15, 16 by controlling the rotation of each air mix damper 19, 20 through each actuator 21, 22. Then, temperature-controlled air corresponding to each target temperature on the driver side and passenger side is generated. That is, the temperature of the air after passing through the cooling unit 11 divided into the driver side air conditioning duct portion 15 and the passenger side air conditioning duct portion 16 is individually adjusted by controlling the flow amount to the heater core 18 individually. The
[0041]
The air conditioning control device 80 controls the rotation of the dampers 45, 47, and 49 through the actuators 55, 57, and 59 and controls the rotation of the dampers 46, 48, and 50 through the actuators 56, 58, and 60. Mode, the ducts 25, 27, 29 and the ducts 26, 28, 30 are selectively opened and closed, and the temperature-controlled air blowing mode into the passenger compartment of the air conditioning ducts 15, 16 is controlled. Is set to, for example, a face mode, a bi-level mode, a foot mode, or a defroster mode.
[0042]
As a result, the temperature-controlled air whose temperature is adjusted by the driver side air conditioning duct unit 15 is appropriately supplied from the defroster outlet 35, the foot outlet 37, or the ventilator outlet 39 to the vehicle interior according to the outlet mode. The temperature-controlled air whose temperature has been adjusted by the passenger-side air conditioning duct unit 16 is appropriately supplied from the defroster air outlet 36, the foot air outlet 38, or the ventilator air outlet 40 to the vehicle interior according to the air outlet mode.
[0043]
Further, when the blowing mode is set to the face mode or the bi-level mode, a part of the temperature-controlled air introduced into the ventilator ducts 29 and 30 is branched and supplied to the vehicle interior also from the rear seat outlet 66. It is.
[0044]
In this case, when the louver 67 is set to the neutral position, the rear seat outlet 66 supplies the temperature-controlled air from the driver side air conditioning duct portion 15 and the passenger side air conditioning duct portion 16 to the passengers in the rear seat. . That is, when the louver 67 is in the neutral position, the temperature adjustment air switching door 70 is positioned in the neutral position, and the driver side air conditioning duct unit 15 and the passenger side air conditioning duct unit 16 are in equal communication with the air mix duct 65, thereby The air conditioning ducts 15 and 16 supply substantially the same amount of temperature-controlled air to the mix duct 65, and after these are mixed in the air mix duct 65, they are supplied to the passengers in the rear seats. In that case, in the air mix duct 65, the turbulent flow by the effect | action of the rib 75 is produced | generated by the temperature control wind from each air-conditioning duct parts 15 and 16, and these are mixed mutually.
[0045]
When the louver 67 is tilted to the driver side, the rear seat outlet 66 mainly supplies the temperature-controlled air from the driver side air conditioning duct portion 15 to the front seat driver. That is, when the louver 67 is tilted to the driver side, the temperature control air switching door 70 is tilted to the passenger side to restrict communication between the passenger-side air conditioning duct portion 16 and the air mix duct 65, thereby 65 is mainly supplied with temperature-controlled air from the driver-side air conditioning duct portion 15 and is supplied to the driver side of the front seat.
[0046]
When the louver 67 is tilted to the passenger side, the rear seat outlet 66 mainly supplies the temperature-controlled air from the passenger-side air conditioning duct 16 to the front seat passenger. That is, when the louver 67 is tilted to the passenger side, the temperature control air switching door 70 is tilted to the driver side to restrict the communication between the driver side air conditioning duct portion 15 and the air mix duct 65, thereby The temperature-controlled air is mainly supplied from the passenger-side air-conditioning duct 16 to 65 and supplied to the passenger side of the front seat.
[0047]
According to such an embodiment, each of the driver-side air conditioning duct portion 15 and the passenger-side air conditioning duct portion 16 is provided in the air mix duct 65 communicating with the rear seat outlet 66 according to the wind direction adjusted by the louver 67. By providing the temperature control air switching door 70 for switching the communication state between the air conditioning duct portions 15 and 16 and the rear seat outlet 66, when the rear seat outlet 66 is used for a front passenger, Appropriate temperature control air according to each set temperature on the passenger side can be supplied.
[0048]
Next, FIGS. 4 and 5 relate to the second embodiment of the present invention, FIG. 4 is a schematic configuration diagram of a temperature control air switching door, and FIG. 5 is a schematic configuration diagram showing a modification of the temperature control air switching door. is there. The present embodiment is mainly different from the first embodiment described above in that the operation of the temperature control air switching door 70 is performed using the actuator 86 instead of the link mechanism 71. In addition, about the same structure, the same code | symbol is attached | subjected and description is abbreviate | omitted.
[0049]
As shown in FIG. 4, the louver 67 is provided with a louver angle sensor 85 as angle detection means for detecting a tilt angle of the louver knob 69 (that is, the louver 67) toward the driver side or the passenger side. In the present embodiment, the louver angle sensor 85 is connected to the shaft portion of the louver knob 69 and outputs the detected tilt angle signal to the air conditioning control device 80.
[0050]
In the air mix duct 65, an actuator 86 is provided at the base of the temperature control air switching door 70 as a door driving means for rotating the temperature control air switching door 70 based on the tilt angle signal from the louver angle sensor 85. It has been.
[0051]
The actuator 86 is driven and controlled by the air conditioning control device 80. For example, when the louver 67 is tilted to the driver side, the temperature control air switching door 70 is tilted to the passenger side according to the tilt angle. When the louver 67 is tilted to the passenger side, the temperature control air switching door 70 is tilted to the driver side according to the tilt angle.
[0052]
Here, in the present embodiment, as shown in FIG. 5, a multistage switch 87 whose contact position is switched according to the tilt angle of the louver 67 may be used as the angle detection means.
[0053]
According to such embodiment, there can exist an effect substantially the same as the above-mentioned 1st Embodiment.
[0054]
In each of the above-described embodiments, an example in which the single temperature control air switching door 70 is applied as the temperature control air switching means has been described. However, the present invention is not limited to this, and for example, a driver A pair of temperature control air switching doors that individually open and close the communication between the air vent duct on the side ventilator duct and the air mix duct on the passenger side ventilator duct may be provided. It may be provided.
[0055]
In the above-described embodiment, the defroster outlets 35 and 36 are also individually adjusted in temperature. However, the temperature control air separately set on the left and right is mixed and blown out. Alternatively, it may be adjusted according to the set temperature on the driver side.
[0056]
Moreover, in the above-mentioned embodiment, although the example which applied this invention to the rear-seat blower outlet provided in the instrument panel was shown, you may apply to the blower outlet provided in the roof trim etc. besides this .
[0057]
【The invention's effect】
As described above, according to the present invention, when using the air outlet to which the left and right temperature-controlled air is mixed and supplied to the occupant receiving the temperature-controlled air set separately for the left and right, It is possible to supply an appropriate temperature-controlled air according to the temperature.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a vehicle air conditioner according to a first embodiment of the present invention. FIG. 2 is a perspective view of an instrument panel. FIG. 3 is an operation of a temperature-controlled air switching door. Explanatory diagram FIG. 4 is a schematic configuration diagram of a temperature control air switching door according to a second embodiment of the present invention. FIG. 5 is a schematic configuration diagram showing a modification of the temperature control air switching door. ]
DESCRIPTION OF SYMBOLS 1 ... Vehicle air conditioner 2 ... Instrument panel 3 ... Air conditioning duct 15 ... Driver side air conditioning duct part 16 ... Passenger side air conditioning duct part 65 ... Air mix duct 66 ... Rear seat outlet (air outlet)
67 ... Louver 70 ... Temperature control wind switching door (temperature control wind switching means)
71 ... Link mechanism 75 ... Rib 85 ... Louver angle sensor (angle detection means)
86 ... Actuator (door drive means)
87 ... Multistage switch (angle detection means)

Claims (4)

The right occupant side air conditioning duct part and the left occupant side air conditioning duct part have an air conditioning duct that is partitioned inside, and the temperature adjustment air temperature adjusted independently in each of the above air conditioning duct parts is applied to the right occupant side and the left occupant In the vehicle air conditioner that can be individually supplied to the passenger compartment on the side,
The outlet connected to the right occupant air conditioning duct and the left occupant air conditioning duct;
A louver capable of adjusting the direction of the temperature-controlled air blown out from the air outlet between the right occupant side and the left occupant side;
When the louver is in the neutral position, the right occupant air conditioning duct portion and the left occupant air conditioning duct portion are equally communicated to the outlet, and the left occupant is tilted to the right occupant side. Temperature control air switching means for restricting communication between the side air-conditioning duct part and the air outlet, and restricting communication between the right occupant air-conditioning duct part and the air outlet when the louver is tilted to the left occupant side ; A vehicle air conditioner comprising: The temperature control air switching means is a temperature control air switching door swinging in an air mix duct interposed between the right air conditioning duct and the left air conditioning duct and the air outlet ,
The temperature-adjusted air switching door for a vehicle air conditioning system according to claim 1, characterized in that it is linked to the louvers through the linkage mechanism. The temperature control air switching means is a temperature control air switching door that swings via a door driving means in an air mix duct interposed between the right air conditioning duct and the left air conditioning duct and the outlet. And
The door drive means, vehicular air conditioning apparatus according to claim 1, wherein the driving the temperature control air switching door on the basis of a signal from the angle detection means for detecting a tilt angle of the louver. The tempering air switching door for a vehicle air conditioning system according to claim 2 or claim 3 wherein characterized in that it has a rib on an end portion of the outlet side.

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