JPH04349017A - Car air conditioner - Google Patents

Abstract

PURPOSE:To achieve proper air conditioning, with which the power consumed by air conditioner device is suppressed and the wind quantity, temp., etc., are regulated as desired by each driver/passenger in the car cabin. CONSTITUTION:A switch capable of being turned by driver/passenger in each of the seats 2. Blowout holes 41a, 41b, 41c are formed in tone neighborhood of each seat 2 and coupled individually with an air conditioner unit 1 through connection ducts 3, 4, 5, 6. The positions of temp. controlling dampers 12 installed as corresponding to these ducts 3, 4, 5, 6 are controlled independently. Thereby the air whose temp. and blowing amount are regulated for each seat 2 according to the switch position operated by each driver/passenger, blows out selectively from the blowout holes 41a, 41b, 41c.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioning system, and more particularly to a seat air conditioning system in which each seat is provided with an air conditioning function so that the temperature can be adjusted for each seat.

0002

[Prior Art] Conventionally, in the case of a passenger car, a vehicle air conditioner blows temperature-controlled hot or cold air toward the passenger from an air outlet formed in the dashboard in front of the front seat. It has become.

0003

[Problems to be Solved by the Invention] However, this conventional air conditioner has a configuration in which hot or cold air is blown out from an air outlet opened in the dashboard at the front of the vehicle, so it is difficult to air condition the entire interior of the vehicle. This not only provided extra heat to parts other than the human body, but also drove the air conditioner even when there were passengers who did not require air conditioning, which was a waste of power. Generally, the number of passengers in a four-seat vehicle is approximately 1.4 on average, and this figure indicates that air conditioning is often applied to seats that are not required. Furthermore, since the entire cabin was air-conditioned, it was difficult to set the desired temperature for each person.

[0004] The present invention has been made to solve these problems, and by making air conditioning from near the human body, air conditioning for each seat, and air conditioning for each seat independent, it achieves significant power savings and improves the efficiency of each passenger. An object of the present invention is to provide a vehicle air conditioner that realizes appropriate air conditioning desired by the user.

[0005]

[Means for Solving the Problems] A vehicle air conditioner according to the present invention to achieve the above object includes a plurality of seats for occupants to sit on, an air conditioning unit that takes in air from outside or from inside the vehicle and performs air conditioning. A connection duct that independently connects the air conditioning unit and the air outlet near the plurality of seats, and an operating means attached near the seat and operable by the occupant of the seat, the state of the operating means being The present invention is characterized in that air whose temperature and air volume are adjusted accordingly for each seat is blown out from the air outlet.

[0006]

[Function] According to the vehicle air conditioner of the present invention, the temperature, humidity, air volume, etc. desired by the occupant can be set by operating the operation switch by the occupant in each seat, and power consumption exceeding the required power can be saved. At the same time, it creates a comfortable state according to the wishes of each passenger.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. A first embodiment of the present invention is shown in FIGS. 1 to 6. 1st
The air conditioner according to the embodiment is configured to guide conditioned air from the air conditioning unit 1 to each of the vehicle seats 2 (four seats in this case) through connection ducts 3, 4, 5, and 6. The air conditioning unit 1 includes an air intake port 7, an evaporator 8, a heater core 9, a partition plate 10 that allows air conditioning to be performed independently for each seat, a temperature control damper 12, and the like. The temperature control damper 12 is rotatably attached to the shaft rod 14, as shown in FIG. As shown in FIG. 3, a jig 15 is fixed to the temperature control damper 12 by screws 21 and 22, and a wire 16 is rotatably attached to this L-shaped jig 15 by a shaft 23. wire 1
6 is covered with a wire sheath 17, as shown in FIG. 2, and this wire sheath 17 is fixed by a presser 18. The other end of the wire 16 is connected to a temperature control lever (not shown).

The air conditioning unit 1 is vertically divided into four divided rooms by three partition plates 10, and the damper case 2 of each seat 2 is connected to the damper case 2 of each seat 2 by connecting ducts 3, 4, 5, and 6.
It is connected to 5. As shown in Figure 4, the damper case 2
5 has a fan 26, and the air taken into the fan 26 passes through a backflow prevention damper 28 and is blown out to each part of the human body on the seat by a first distribution damper 29 or a second distribution damper 30. The damper case 25 has distribution ports 25a, 25b, 25c, and 25d that selectively distribute air to the head, chest, thighs, and toes. The backflow prevention damper 28 is actuated by subtle dynamic pressure, and rotates in the direction of arrow a from the position shown in FIG. 4, but does not rotate in the direction of arrow b. That is, as shown in FIG. 5, the backflow prevention damper 28 is rotatably mounted around a shaft 34, is biased clockwise in FIG. 5 by a spring 31, and is biased clockwise in FIG. It is prevented from rotating clockwise from its position. The opening degree of the backflow prevention damper 28 is maintained at a position that balances the biasing force of the spring 31 and the delicate dynamic pressure that presses the inside of the damper case 25 in the direction of the arrow in the figure.

Distribution ports 25a, 25b, 25c shown in FIG.
, 25d are extension ducts 40a, 40b, 4 shown in FIG.
Connected by 0c and 40d. The conditioned air from the damper case 25 is transferred to extension ducts 40a and 40b.
, 40c, 40d through the outlet ducts 41a, 41b
, 41c, and 41d selectively emit air from the head, chest, thighs, and toes, respectively. Each seat 2 is provided with a fan switch (not shown) and a temperature control lever (not shown), which can be operated by the occupant of the seat and whose air volume can be adjusted.

For example, when the occupant of seat 2 on the right side of the front seat sets the fan switch to a predetermined air volume and selects the temperature control lever, the fan 26 rotates at a predetermined number of rotations according to the setting of the fan switch, and the fan 26 rotates at a predetermined rotation speed to achieve the predetermined air volume. from the air conditioning unit 1 through the connection duct 3 and the damper case 25 to the desired outlet 4 of the extension duct 40a, 40b, 40c, 40d.
Temperature control and air volume control air is selectively blown out from 1a, 41b, 41c, and 41d. The temperature control according to this embodiment is performed by setting the opening degree of the damper 12 using a temperature control lever.

For example, the connecting duct 3 of the four seats 2
If the air is blown only to seat 2 on the right side of the front seat to which the
Since the fan 26 of the other seat 2 is stopped, the air supplied to the fan of the seat 2 on the right side of the front seat is supplied to the evaporator from the air outlet 41a, 41b, 41c, 41d of the left side of the other front seat or the rear seat 2. The backflow damper 28 prevents the water from flowing backward into the heater core 9 and the heater core 9 . Note that when all fan switches are turned off during cooling, the electromagnetic clutch is turned off to save power. fan switch is 1
If the air flow rate is low, the expansion valve is automatically throttled to reduce the flow rate and save power.

A second embodiment of the invention is shown in FIGS. 7 and 8. In the second embodiment, a blower fan 44 is provided upstream of the evaporator 8 of the air conditioning unit 1. As shown in FIG. 8, the damper case 45 attached to the lower part of each seat 2 distributes air taken in from an air inlet 45a to a distribution port 45b.
Dampers 46 for the heads, thighs, and feet of 45c and 45d
, 47 and 48, the air volume to each part can be adjusted. Since the other components are the same as those in the first embodiment, substantially the same components are denoted by the same reference numerals and the explanation thereof will be omitted.

A third embodiment of the present invention is shown in FIGS. 9 and 10. In the third embodiment, a heater core 9 is installed in the air conditioning unit 1.
An air mix damper 50 is provided upstream of the heater core 9. A connecting duct 51 extends from the unit case 1a of the air conditioning unit 1 to one of the four seats 2, and an evaporator case 52 is connected to the end of the connecting duct 51. The evaporator case 52 houses an evaporator 53 and a blower fan 54. Each seat 2 is located downstream of the evaporator 53.
An air volume adjustment damper 55 for adjusting the air volume to each is attached. On the downstream side of the air volume adjustment damper 55, extension ducts 58, 59, and 60 are connected to the remaining three seats 2, and a windshield duct 61 is also connected. Air volume to each seat 2 and windshield is controlled by air volume adjustment damper 5
Adjusted by 5. Note that FIG. 10 shows an example of an air volume adjustment damper case provided under each seat. Distribution ports 62a, 62b, 62c, 62 of air volume adjustment damper case 62
Air volume adjustment dampers 63, 64, 65, and 66 for the head, chest, thighs, and toes are attached to d, respectively.

As a modification of the third embodiment, the evaporators 53 can be individually provided for the four seats 2, and four air volume adjusting dampers 55 can be provided for each of the four seats 2. Regarding other constituent parts, constituent parts that are substantially the same as those in the first embodiment are given the same reference numerals and explanations thereof will be omitted.

A fourth embodiment of the present invention is shown in FIG. Fourth
In the embodiment, a heater core 9 is provided downstream of the evaporator 8 of the air conditioning unit 1, and one air mix damper 67 is provided upstream of the heater core 9. Heater core 9
Three partition plates 68 are provided in the vertical direction on the downstream side, and four air flow paths are formed between these partition plates 68. These air flow paths are connected to connecting ducts 3, 4, 5, and 6, respectively.
is connected to. Seat 2 of connection duct 3, 4, 5, 6
A blower fan 70 is attached to the lower part of each seat 2, and the temperature of the air blown from the air outlet of each seat 2 is controlled by each blower fan 70. Fine temperature control of each seat 2 is performed by changing the rotation speed of the blower fan 70 of each seat 2. At this time, the useless ventilation fan 7
0 is stopped, the thermal efficiency of the evaporator 8 and heater core 9 can be improved. Regarding other constituent parts, constituent parts that are substantially the same as those in the first embodiment are given the same reference numerals, and explanations thereof will be omitted.

A fifth embodiment of the present invention is shown in FIG. Fifth
In the embodiment, the most downstream part of the connecting duct 3 is connected to the air outlets 72 and 73 of the right front door and the right rear door, and the most downstream part of the connecting duct 6 is connected to the air outlets 74 of the right front floor and the rear floor.
This is an example of connecting to 75. The connecting ducts 4 and 5 are connected to the left side air outlet corresponding to the connecting ducts 3 and 6. In this way, temperature-controlled air can be blown from the vicinity of the door on the right or left side of each seat 2, and temperature-controlled air can be blown upward from the floor of each seat 2. The other constituent parts are substantially the same as those shown in the second embodiment, so the substantially same constituent parts are denoted by the same reference numerals and the explanation thereof will be omitted.

A sixth embodiment of the present invention is shown in FIG. 6th
In the embodiment, four dampers 12 are provided in front of the heater core 9 in the vertical direction. The opening degrees of the four dampers 12 are set individually, and 12a, 12b, 1
The positions indicated by dotted lines 2c and 12d are cooling mode, respectively.
These are air mix mode, heating mode, and zero air volume mode. Each mode can be switched according to the opening degree of each damper 12, eliminating the need for individual blower fans, and making it possible to turn on and off the air volume with a single blower fan.

A seventh embodiment of the present invention is shown in FIG. 7th
In the embodiment, air passing through a heater core 9 provided on the downstream side of an evaporator 8 is divided into four stages of air flow channels in the upper and lower directions by a partition plate 10.
This is an example in which a film damper 80 is provided between the evaporator and the heater 23 to individually control air volume and temperature over the entire air flow path. Individual film dampers 80 are for air volume and temperature control for each seat.

An eighth embodiment of the present invention is shown in FIGS. 15 and 16.
Shown below. The eighth embodiment is an example in which the air supply duct guided to each seat 2 is made expandable and retractable when the seat 2 is moved back and forth. That is, a connecting duct 82 extends from the air conditioning unit on the heater unit side provided at the front of the vehicle to each seat 2, and a convex portion of an L-shaped intermediate duct 84 is inserted into a recess 82a formed at the end of each connecting duct 82. 84a is rotatably fitted, one end 86a of a second L-shaped intermediate duct 86 is inserted into the inner circumferential surface of the other end 84b so as to be expandable and retractable in the axial direction, and the convex portion 86b on the other end side is inserted into the inner peripheral surface of the other end 84b. It is rotatably attached to a recess 88a of a duct 88 on the damper case side attached to the damper case 2. Thereby, the duct 88 is movable to the left and right in FIG. 15 with respect to the connection duct 82 and in a direction perpendicular to the plane of the paper. That is, as shown in FIGS. 16(A) and 16(B), the damper case (not shown) is configured to be movable following the longitudinal and vertical movements of the seat 2.

Although several embodiments have been described above, the scope of the present invention is not limited to these embodiments, but can be modified and changed, and the scope can be determined by those skilled in the art. be.

[0021]

[Effects of the Invention] As explained above, according to the vehicle air conditioner of the present invention, the temperature, humidity, air volume, etc. desired by the occupant can be independently set by the operation of the occupant in each seat of the vehicle. Because the configuration allows for a comfortable driving experience by supplying air at the temperature, humidity, and air volume according to the passenger's wishes, it also eliminates the need to consume more driving force than is necessary, which reduces the energy source. This has the effect of reducing costs.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing a vehicle air conditioner according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a damper drive unit provided in a heater core of a vehicle air conditioner according to a first embodiment of the present invention.

FIG. 3(A) is a side view showing a connecting portion of the damper according to the first embodiment of the present invention. (B) is a plan view thereof.

FIG. 4 is a schematic configuration diagram showing a damper case provided in each seat according to the first embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view showing a backflow prevention damper according to a first embodiment of the present invention.

FIG. 6 is a schematic perspective view showing the air blowing position of the seat according to the first embodiment of the present invention.

FIG. 7 is a schematic perspective view showing a vehicle air conditioner according to a second embodiment of the present invention.

FIG. 8 is a schematic configuration diagram showing a damper case according to a second embodiment of the present invention.

FIG. 9 is a schematic configuration diagram showing a vehicle air conditioner according to a third embodiment of the present invention.

FIG. 10 is a schematic configuration diagram showing a damper case according to a third embodiment of the present invention.

FIG. 11 is a schematic configuration diagram showing a vehicle air conditioner according to a fourth embodiment of the present invention.

FIG. 12 is a schematic configuration diagram showing an air outlet according to a fifth embodiment of the present invention.

FIG. 13 is a schematic configuration diagram showing an air conditioning unit of a vehicle air conditioner according to a sixth embodiment of the present invention.

FIG. 14 is a schematic configuration diagram showing a damper of a heater core according to a seventh embodiment of the present invention.

FIG. 15 is a schematic configuration diagram showing a connection duct that connects an air conditioning unit and a damper case of each seat according to an eighth embodiment of the present invention.

FIG. 16(A) is a schematic plan view showing the approximate position of a connection duct according to an eighth embodiment of the present invention. (B) is its side view.

[Explanation of symbols]

1 Air conditioning unit 2 Seats 3, 4, 5, 6 Connection duct 7　Blower fan 8 Evaporator 9 Heater core 12 Temperature control damper

Claims (1)

[Claims] Claim 1: A plurality of seats on which passengers sit, an air conditioning unit that takes in air from inside or outside the vehicle interior and conditions the air, and an air outlet near the plurality of seats that is independent of the air conditioning unit. and a connecting duct connected to the seat, and an operating means that is installed near the seat and can be operated by the occupant of the seat, and air whose temperature and air volume are adjusted for each seat according to the state of the operating means is supplied to the seat. A vehicle air conditioner characterized in that air is emitted from an air outlet.