WO2016104053A1

WO2016104053A1 - Air conditioner for motor vehicle

Info

Publication number: WO2016104053A1
Application number: PCT/JP2015/083457
Authority: WO
Inventors: 勝郎渡邉; 孝浩瀬戸
Original assignee: サンデンホールディングス株式会社; 株式会社ケーヒン
Priority date: 2014-12-25
Filing date: 2015-11-27
Publication date: 2016-06-30
Also published as: JP6434302B2; CN107107706B; CN107107706A; JP2016120822A

Abstract

The present invention suppresses power consumption, suppresses an increase in the number of components, and achieves a cost reduction and ease of control. Downstream of an air channel 3, a ventilation passage 22 that communicates with a foot discharge port 23 for a driver seat, a foot discharge port 24 for a rear seat, and a foot discharge port 25 for a passenger seat is partitioned by a second partition member 26 into the foot discharge port 23 for a driver seat, and all other foot discharge ports 24, 25. A foot damper 27 for a driver seat, said damper being capable of opening and closing the foot discharge port 23 for a driver seat, and an integrated foot damper 28, which is capable of integrally opening and closing the foot discharge ports 24, 25 for a rear seat and passenger seat, are provided upstream of the ventilation passage 22. By opening the foot damper 27 for a driver seat and closing the integrated foot damper 28, air is discharged in a concentrated manner only at the driver seat.

Description

Automotive air conditioner

The present invention relates to an automotive air conditioner, and more particularly to an automotive air conditioner performing single-seat centralized operation in which air is blown out intensively only in the driver's seat.

As an automotive air conditioner performing single-seat intensive operation in which air is blown out intensively only at the driver's seat, a device described in Patent Document 1 is known.
This device is provided in each of the first and second partition members that divide the air passage inside the air conditioning case into three passages on the driver's seat side, the rear seat side and the passenger seat side, and the air outlet of each air passage. An opening door capable of controlling the blowout of air into the vehicle compartment by opening and closing; a plate door openable and closable upstream of the air blowout ports of the first and second partition members so as to communicate with the respective air passages; It is comprised including.

In the above device, when there is a passenger only in the driver's seat, the driver opens the opening door of the air passage on the driver's seat side and closes the opening doors of the air passage on the passenger seat side and the rear seat side respectively. By opening the plate door by the pressure difference between the air passage on the side and the air passage on the rear and passenger sides, power consumption can be reduced by performing single-seat centralized operation in which only the driver's seat blows out air intensively. There is.

Japanese Patent No. 5125930

However, in Patent Document 1, an opening door for opening and closing the air outlet on the rear seat side is provided in the air path on the rear seat side, together with the opening doors of the air path on the driver seat side and the passenger seat side, There is a problem that the cost increases because the number of parts such as a dedicated damper and a link lever for its operation increases.

The present invention has been made by focusing attention to such conventional problems, and suppresses power consumption by performing single-seat centralized operation, and also achieves increase in the number of parts to achieve cost reduction and simplicity of control. It is an object of the present invention to provide an automotive air conditioning system that can

In order to solve the above problems, the present invention is an automotive air conditioner including a first partition member that divides an air passage inside an air conditioning case into two passages on a driver's seat side and a passenger seat side, which is downstream of the air passage. On the side, an air passage communicating with the air outlet on the driver's seat side and the air outlet on the passenger side, the air passage, an air outlet for the driver's seat, and an air outlet other than the air outlet for the driver's seat A second partition member for communicating with each other, a driver seat damper capable of opening and closing a ventilation path partitioned for communicating with the outlet for the driver's seat, and an outlet other than the outlet for the driver's seat And an integral type damper capable of integrally opening and closing a ventilation passage partitioned to communicate with a mouth, wherein the driver's seat damper is opened and the integral damper is closed, whereby the driver's seat is provided. From the mouth of Medium to be characterized by causing blown air.

According to the present invention, it is possible to suppress the increase in the number of parts by integrally closing the outlets other than the outlet for the driver's seat, thereby achieving the simplicity of cost reduction and control, and for partitioning for the driver's seat Power consumption can be suppressed by performing single-seat centralized operation in which air is blown out intensively from the blowout port.

The whole block diagram of the air conditioner for motor vehicles concerning one embodiment of the present invention Main part sectional view of air conditioner same as above Main part perspective view of air conditioner same as above Perspective view of driver's foot damper Perspective view of integrated foot damper

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a whole block diagram of a car air conditioner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the main part of the same air conditioner.
An air conditioner (HVAC (Heating Ventilation and Air Conditioning) unit) 1 is disposed in the cabin of a car (including an engine-driven car, an electric car, and a hybrid car), and is equipped with cabin air (inner air) or cabin outdoor air ( Take in the ambient air, adjust the temperature, and blow it out into the passenger compartment.

The air conditioner 1 includes an air intake port at one end and an air outlet at the other end. The air conditioner 1 includes a resin-made air conditioning case 2 that forms an air passage 3 therein.
On the inlet side of the air passage 3, the inside air intake 4 and the outside air intake 5, the inside / outside air switching door 6 for selectively switching these

intakes

4, 5, the filter 7, the air from the intakes 4, 5 A blower 8 for taking in and blowing air (inside air or outside air) is provided.
On the downstream side of the blower 8 of the air passage 3, an evaporator 9 which is a cooling heat exchanger is provided.

The evaporator 9 is a cooling heat exchanger of the heat pump cycle, and refrigerant condensed by an outdoor condenser (not shown) flows into the evaporator through the pressure reducing means during the cooling operation of the heat pump cycle and flows into the evaporator. The refrigerant thus heated is heated and evaporated by heat exchange with air. At this time, the air flowing through the evaporator 9 is cooled and provided for cooling the passenger compartment. During the heating operation of the heat pump cycle, the refrigerant bypasses the evaporator 9.

The air conditioner 1 also includes a first partition member (center plate) 10 that divides the downstream side of the evaporator 9 of the air passage 3 into parallel first and

second air passages

11 and 12.
Accordingly, the downstream side of the evaporator 9 of the air passage 3 is divided into the left and right parallel first air passages 11 (driver's seat side) and the second air passage 12 (passenger's seat side) by the partition members 10 arranged vertically. It is done.

That is, the air passing through the first air passage 11 is blown out to the driver's seat side including the driver's seat and the rear seat from

foot outlets

23, 24 described later, and the air passing through the second air passage 12 is a foot described later The air is blown out to the front passenger seat side including the front passenger seat and the rear seat from the

outlets

24 and 25.
The air conditioning case 2 is divided at the part of the partition member 10, and is joined integrally while sandwiching the partition member 10.

The first air passage 11 is also divided by the partition wall 13 into a heating passage 15 and a bypass passage 17. Although the bypass passage 17 is shown beside the heating passage 15 in FIG. 1, the bypass passage 17 is actually formed on the upper side of the heating passage 15 as shown in FIG.
The second air passage 12 is also divided by the partition wall 14 into a heating passage 16 and a bypass passage 18. Although the bypass passage 18 is shown beside the heating passage 16 in FIG. 1, the bypass passage 18 is actually formed on the upper side of the heating passage 16 as shown in FIG. In FIG. 2, the second air passage 12 is on the back side of the drawing with respect to the first air passage 11.

A heater core 19 is provided in the two

heating passages

15 and 16 as a heating heat exchanger. The heater core 19 is disposed across the two

heating passages

15 and 16.
Therefore, the

bypass passages

17 and 18 bypass the heating means (heater core 19).

The heater core 19 heats the air flowing through the heater core 19 using the engine cooling water (engine cooling water that has cooled the engine and received heat) as a heat medium, and is used to heat the vehicle interior.
During the cooling operation, heat exchange with air is not performed by closing the

air mix doors

20 and 21 described later, and the refrigerant passes as it is.

An indoor condenser (not shown) may be provided in series with the heater core 19 as a heating heat exchanger. In more detail, the heater core 19 is provided on the upstream side, the indoor condenser is provided on the downstream side, and the indoor condenser is disposed across the two

heating passages

15 and 16 similarly to the heater core 19.

The indoor condenser is a heating heat exchanger of the heat pump cycle, and the high-temperature, high-pressure gas refrigerant compressed by the compressor (not shown) flows into the indoor condenser during the heating operation of the heat pump cycle. Condensed and liquefied by heat exchange. At this time, the air flowing through the indoor condenser is heated and provided to heat the vehicle interior. During the cooling operation of the heat pump cycle, heat exchange with air is not performed due to the closing of the

air mix doors

20 and 21 described later, and the refrigerant passes as it is.

At this time, the heater core 19 is used as an auxiliary heating means suitable for an engine-driven automobile.
Therefore, in the case of an electric vehicle, an electric heater, in particular a PTC heater, is used as the auxiliary heating means in place of the heater core 19. The PTC heater heats the air by passing the air through the electrically heated heater element. Temperature control becomes easy by using a PTC heater especially as an electric heater.

An air mix door 20 is provided on the inlet side of the heating passage 15 and the bypass passage 17 in the first air passage 11.
The air mix door 20 controls the ratio of air flowing to the heating passage 15 and the bypass passage 17, and has a function of blocking the flow of air to the heating passage 15 during cooling operation.
An air mix door 21 is also provided on the inlet side of the heating passage 16 and the bypass passage 18 in the second air passage 12.
The air mix door 21 controls the ratio of air flowing to the heating passage 16 and the bypass passage 18 and has a function of blocking the flow of air to the heating passage 16 during the cooling operation.
By providing the two

air mix doors

20 and 21 separately so as to be adjustable in opening degree, it becomes possible to independently adjust the temperature independently.

The outlet side of the first air passage 11 (the outlet side joining portion between the heating passage 15 and the bypass passage 17) and the outlet side of the second air passage 12 (the outlet side joining portion between the heating passage 16 and the bypass passage 18) An air passage 22 is provided in which the temperature-controlled air in the

air passages

11 and 12 communicates with the

foot outlets

23, 24 and 25 described later.

In the ventilation path 22, it branches in three directions on the downstream side, and blows air toward the driver's seat, the driver's seat and the passenger's rear seat's passenger, and the passenger's seat's feet. A foot outlet 23 for the driver's seat, a foot outlet 24 for the rear seat on the driver's seat side and a passenger's seat side, and a foot outlet 25 for the passenger seat are provided.

A rear seat foot outlet 24 is located on an extension of the center plate 10 extending between the driver seat foot outlet 23 and the passenger seat foot outlet 25, that is, to the middle of the air passage 22. .
Thereby, the air having passed through the first air passage 11 passes through the foot outlet 23 for the driver's seat and the foot outlet 24 for the rear seat, and is blown out to the feet of the occupants of the driver's seat and the rear seat. The air that has passed through the air passage 12 passes through the rear seat foot outlet 24 and the front passenger seat outlet 25 and is blown out to the feet of the front passenger and the rear passenger.

On the outlet side of the first air passage 11, a second partition member (sub plate) 26 extending to the air passage 22 from the downstream side is provided, whereby the air passage 22 is a foot outlet for the driver's seat It is completely divided into 23 and

foot outlets

24 and 25 for the rear seat and the front passenger seat.

On the upstream side of the ventilation path 22, the driver's seat foot damper 27 capable of opening and closing the driver's seat air outlet 23 and the

air outlets

24 and 25 for the rear seat and the passenger's seat can be opened and closed integrally. An integrated foot damper 28 is provided.

A face outlet 29 for the driver's seat is provided on the outlet side of the first air passage 11 on the upstream side of the ventilation path 22 so as to blow out the temperature-controlled air toward the upper body of the driver's seat occupant.
As shown in FIG. 1, the face outlet 29 for the driver's seat is branched such that the blown-out air is directed from the center and the side of the vehicle interior to the occupant of the driver's seat.

On the outlet side of the second air passage 12 on the upstream side of the air passage 22, a face outlet 30 for the passenger seat is provided to blow out the temperature-controlled air toward the upper body of the passenger on the passenger seat.
Incidentally, as shown in FIG. 1, the face outlet 30 for the passenger seat is branched such that the blown air is directed from the center and the side of the vehicle interior to the passenger of the passenger seat.

The driver's seat face dampers 31 capable of opening and closing the

respective blowout ports

29, 30 and the passenger seat's face dampers 32 are provided in the driver's seat and the passenger's

seat face outlets

29, 30, respectively.

As air blowout ports, in addition to the

face blowout ports

29 and 30,

differential blowout ports

33 and 34 for removing the windshield etc. are provided. However, in order to blow out air having a uniform temperature between the driver's seat side and the passenger's seat side, the

differential blowout openings

33, 34 are disposed in common to the left and right, and these

differential blowout openings

33, 34 can be opened and closed. 35 are also common, but are shown separately in FIG. 1 for convenience.

Next, the sub plate 26, the driver's seat foot damper 27, and the integrated foot damper 28 will be described with reference to FIGS.
3 is a perspective view of the main part of the air conditioner 1, FIG. 4 is a perspective view of the foot damper 27 for the driver's seat, and FIG. 5 is a perspective view of the integrated foot damper 28.

As shown in FIG. 3, the sub plate 26 is formed in an L shape from the upstream side of the air passage 22 toward the foot outlet 23 for the driver's seat along the shape of the air passage 22. The foot outlet 23 is mounted so as to be completely isolated from the rear and front

passenger foot outlets

24, 25. As a result, the temperature-controlled air is guided so as to pass toward the driver's seat foot outlet 23 only in the air passage 22.

That is, the sub plate 26 divides the ventilation path 22 on the driver's seat side into the foot outlet 23 for the driver's seat and the foot outlet 24 for the rear seat of the driver's seat (and the front passenger's seat).
The shape of the sub plate 26 is not limited to the L-shape, and any shape as long as it has the above-described function may be used.

On the upstream side of the air passage 22 surrounded by the sub plate 26 and the inner wall of the air conditioning case 2, a driver seat foot damper 27 capable of opening and closing the driver seat foot outlet 23 is attached.
Thereby, the blowout of air from the foot outlet 23 for the driver's seat is controlled.

On the other hand, on the upstream side of the air passage 22 surrounded by the sub plate 26 and the inner wall of the air conditioning case 2 separated from the center plate 10, the

foot outlets

24 and 25 for the rear seat and the front passenger seat are integrated. An integral foot damper 28 which can be opened and closed is attached.
As a result, the blowout of air from each of the rear and front passenger

seat air outlets

24 and 25 is integrally controlled.

Here, as shown in FIGS. 4 and 5, the integrated foot damper 28 includes a recessed groove 36 into which the end edge portion of the center plate 10 can be inserted unlike the foot damper 27 for the driver's seat.
The recessed groove 36 is provided to avoid the interference of the center plate 10 when the integral foot damper 28 is opened and closed.
That is, the end edge portion of the center plate 10 is inserted into the recessed groove 36 and the integral foot damper 28 opens and closes in the longitudinal direction of the center plate 10.

Thus, in the air passage 22, the passage partitioned into the center plate 10 and the sub plate 26 and the passage partitioned into the center plate 10 and the inner wall of the air conditioning case 2 are each opened and closed integrally. It is possible to integrally control the blowout of the temperature-controlled air from each of the

foot outlets

24 and 25 for the front passenger seat and the front passenger seat.

According to the present embodiment, in the air passage 22, the foot plate outlet 23 for the driver's seat, and the sub plate 26 for completely separating the

foot outlets

24 and 25 for the rear seat and the passenger seat, respectively independently The following effects can be obtained by providing the driver's seat foot damper 27 that can be opened and closed and the integrated foot damper 28.
By opening the driver's seat foot damper 27 and closing the integrated foot damper 28, power consumption can be suppressed by performing single-seat centralized operation in which air is blown out intensively from the driver's seat foot outlet 23. Since the rear and front passenger

seat foot outlets

24 and 25 can be integrally closed, the number of parts can be reduced, and the cost can be reduced and the control can be simplified.

Further, according to the present embodiment, by closing the driver's seat foot damper 27 and opening the integrated foot damper 28 and the driver's seat face damper 31, the passenger (passenger seat and rear seat) other than the driver (driver's seat) The air can be blown toward the foot of the driver's seat, and the driver can blow air toward the upper body only.

In the above embodiment, the foot outlets 23 to 25 may be replaced by the face outlets, and the

face outlets

29 and 30 may be replaced by the foot outlets. In this case, air can be intensively blown out from the face outlet for the driver's seat.

The illustrated embodiment is merely an example of the present invention, and in addition to the one directly shown by the described embodiment, various improvements made by those skilled in the art within the scope of the claims can be made. It goes without saying that it is intended to cover changes.

1 ... Air conditioner (HVAC unit)
2 air conditioning case 3 air passage 4 inside air intake 5 outside air intake 6 inside / outside air switching door 7 filter 8 blower 9 evaporator 10 first partition member (center plate)
11 ... 1st air passage 12 ...

2nd air passage

13, 14 ...

Partition wall

15, 16 ...

Heating passage

17, 18 ... Bypass passage 19 ...

Heater core

20, 21 ... Air mix door 22 ... Ventilation passage 23 ... For driver's seat Foot outlet 24 for the driver's seat side and the passenger seat side's foot outlet 25 for the passenger seat foot outlet 26 for the passenger seat second partition member (sub plate)
27: driver's seat foot damper 28: integrated foot damper 29: driver seat face outlet 30: passenger seat face outlet 31: driver seat face damper 32: passenger seat face damper 33, 34: differential outlet 35 ... Damper for differential air outlet 36 ... recessed groove

Claims

An air conditioner for a motor vehicle comprising a first partition member for dividing an air passage inside an air conditioning case into two passages on a driver's seat side and a passenger seat side,
On the downstream side of the air passage, an air passage communicating with an outlet on the driver's seat side and an outlet on the passenger seat side,
A second partition member that divides the ventilation passage into communication with an outlet for the driver's seat and an outlet other than the outlet for the driver's seat;
A driver seat damper capable of opening and closing an air passage partitioned to communicate with the driver seat outlet;
An integral damper capable of integrally opening and closing a ventilation path partitioned to communicate with a blowoff port other than the blowout port for the driver's seat;
Is configured to include
An air conditioner for an automobile, characterized in that the driver seat damper is opened and the integrated damper is closed to blow out air intensively from the driver seat outlet.
The driver seat is provided with a recessed groove that opens and closes over the two passages partitioned by the first partition member, and the integrated damper avoids interference of the first partition member during the opening and closing operation. The air conditioner according to claim 1, wherein the air outlet other than the air outlet can be integrally opened and closed.
The automotive air conditioner according to claim 2, wherein an end edge portion of the first partition member is inserted into the recessed groove of the integrated damper.
The automobile according to claim 1, wherein the second partition member is formed along the shape of the air passage, from the upstream side of the air passage toward the outlet for the driver's seat. Air conditioner.
The automotive air conditioner according to claim 1, wherein each of the outlets is a foot outlet provided to blow air toward the feet of the occupant.
The automotive air conditioner according to claim 5, wherein the driver seat damper is opened and the integrated damper is closed to blow out air intensively from the driver seat foot outlet.
The air passage includes a face outlet for the driver's seat and a face damper for the driver's seat capable of opening and closing the face outlet for the driver's seat on the upstream side of the air passage.
By opening the face damper for the driver's seat and the integrated damper and closing the damper for the driver's seat, the air from the foot outlets other than the foot outlet for the driver's seat and the face outlet for the driver's seat The air conditioner according to claim 5, characterized in that
The automotive air conditioner according to claim 1, wherein each outlet is a face outlet provided to blow air toward the upper body of the occupant.
9. The automotive air conditioner according to claim 8, wherein the driver's seat damper is opened and the integrated damper is closed to blow out air intensively from the face outlet for the driver's seat.