JP6434302B2 - Automotive air conditioner - Google Patents

Description

  The present invention relates to an automotive air conditioner, and more particularly, to an automotive air conditioner that performs a one-seat concentrated operation in which only a driver's seat blows air intensively.

An apparatus described in Patent Document 1 is known as an automobile air conditioner that performs a one-seat concentrated operation in which only the driver's seat blows air intensively.
This device is provided in each of the first partition member and the second partition member for partitioning 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 that can control air blowing into the vehicle interior by opening and closing; a plate door that can be opened and closed so as to communicate with each air passage downstream of the air blowing ports of the first and second partition members; It is comprised including.

  In the above apparatus, when there is an occupant only in the driver's seat, the opening door of the air passage on the driver's seat side is opened and each opening door of the air passage on the passenger's seat side and the rear seat side is closed, so that the driver's seat The plate door opens due to the pressure difference between the air passage on the side and the air passage on the rear seat side and the passenger seat side, thereby reducing power consumption by performing one-seat concentrated operation in which only the driver's seat blows air intensively Yes.

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 passage on the rear seat side, together with the opening doors of the air passage on the driver seat side and the passenger seat side, Since the number of parts such as a dedicated damper and a link lever for operating the same increases, there is a problem that the cost is increased.

  The present invention has been made paying attention to such a conventional problem, and by reducing the power consumption by performing the one-seat concentrated operation, the increase in the number of parts is suppressed, and the cost is reduced and the control is simplified. An object of the present invention is to provide an automotive air conditioner.

In order to solve the above problems, the present invention provides an automotive air conditioner including a first partition member that partitions an air passage inside an air conditioning case into two passages on a driver's seat side and a passenger seat side, and downstream of the air passage. On the side, a ventilating path in which the temperature-controlled air communicates with an outlet on the driver seat side and an outlet on the passenger seat side, the outlet for the driver seat, and the outlet for the driver seat. A second partition member for partitioning to communicate with a blowing port other than the mouth, a damper for a driver seat capable of opening and closing a ventilation passage partitioned to communicate with the blowing port for the driver seat, and the driver seat An integrated damper capable of integrally opening and closing a ventilation passage that is partitioned to communicate with an outlet other than the outlet, and opening the driver seat damper and closing the integrated damper For the driver's seat Was from can out mouth intensively blown air, the integrated damper, the opening and closing operation in the longitudinal direction of the first partition member, comprise a groove to avoid interference with the first partition member during the opening and closing operation Thus, the air outlets other than the air outlet for the driver's seat can be integrally opened and closed .

  According to the present invention, the blowout ports other than the blowout port for the driver's seat can be integrally closed to suppress an increase in the number of parts, thereby reducing the cost and simplifying the control, and for the driver's seat. Power consumption can be suppressed by performing a one-seat concentrated operation in which air is intensively blown out from the blowout port.

1 is an overall configuration diagram of an automotive air conditioner according to an embodiment of the present invention. Cross-sectional view of the main part of the same air conditioner Perspective view of the main parts of the air conditioner Perspective view of foot damper for driver's seat Perspective view of integrated foot damper

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall configuration diagram of an automotive air conditioner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a main part of the same air conditioner.
An air conditioner (HVAC (Heating Ventilation and Air Conditioning) unit) 1 is disposed in a vehicle interior of an automobile (including an engine-driven automobile, an electric vehicle, and a hybrid vehicle), and is equipped with a vehicle interior air (inside air) or a vehicle exterior air ( Take outside air), adjust the temperature, and blow it out into the passenger compartment.

The air conditioner 1 includes a resin air conditioning case 2 having an air intake port on one end side and an air outlet port on the other end side and forming an air passage 3 therein.
On the inlet side of the air passage 3, the air from the inside air intake port 4 and the outside air intake port 5, the inside / outside air switching door 6 that selectively switches between these intake ports 4, 5, the filter 7, and the intake ports 4, 5 And a blower 8 that takes in (inside air or outside air) and blows air.
An evaporator 9, which is a cooling heat exchanger, is provided on the downstream side of the blower 8 in the air passage 3.

  The evaporator 9 is a heat exchanger for cooling the heat pump cycle. During the cooling operation of the heat pump cycle, the refrigerant condensed by the outdoor condenser (not shown) flows in through the decompression means, It is heated and evaporated by heat exchange. At this time, the air flowing through the evaporator 9 is cooled and used for cooling the passenger compartment. In 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 partitions the downstream side of the evaporator 9 of the air passage 3 into a first air passage 11 and a second air passage 12 that are arranged in parallel.
Accordingly, the downstream side of the evaporator 9 in the air passage 3 is partitioned into a left and right parallel first air passage 11 (driver seat side) and second air passage 12 (passenger seat side) by a partition member 10 arranged vertically. It has been.

That is, the air passing through the first air passage 11 is blown out from the foot outlets 23 and 24 described later to the driver seat side including the driver seat and the rear seat, and the air passing through the second air passage 12 is the foot described later. The air is blown out from the air outlets 24 and 25 to the passenger seat side including the passenger seat and the rear seat.
The air conditioning case 2 is divided at the partition member 10 and is integrally joined with the partition member 10 interposed therebetween.

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

A heater core 19 is provided in the two heating passages 15 and 16 as a heat exchanger for heating. 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 uses the engine cooling water (engine cooling water received after cooling the engine) as a heat medium, and the air flowing through the heater core 19 is heated to be used for heating the vehicle interior.
During the cooling operation, the air mix doors 20 and 21 described later are closed, so that heat exchange with the air is not performed and the refrigerant passes as it is.

  Note that an indoor condenser (not shown) may be provided in series with the heater core 19 as a heating heat exchanger. Specifically, the heater core 19 is provided on the upstream side, the indoor condenser is provided on the downstream side, and the indoor condenser is also disposed across the two heating passages 15 and 16 in the same manner as the heater core 19.

  The indoor condenser is a heat exchanger for heating of the heat pump cycle. During heating operation of the heat pump cycle, high-temperature and high-pressure gas refrigerant compressed by a compressor (not shown) flows in, and condensates and liquefies by heat exchange with air. Is done. At this time, the air flowing through the indoor condenser is heated and used for heating the passenger compartment. In the cooling operation of the heat pump cycle, the air mix doors 20 and 21 described later are closed, so that heat exchange with the air is not performed and the refrigerant passes as it is.

At this time, the heater core 19 is used as auxiliary heating means suitable for an engine-driven automobile.
Therefore, in the case of an electric vehicle, an electric heater, particularly a PTC heater is used as an auxiliary heating means instead of the heater core 19. The PTC heater heats air by passing air through an electrically heated heater element. Temperature control is facilitated by using a PTC heater as the 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 the air flowing to the heating passage 15 and the bypass passage 17 and has a function of blocking the air flow to the heating passage 15 during the 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 air flow to the heating passage 16 during the cooling operation.
By providing the two air mix doors 20 and 21 so that the opening degree can be adjusted separately, the left and right independent temperature adjustment is possible.

  The outlet side of the first air passage 11 (the outlet side merging portion between the heating passage 15 and the bypass passage 17) and the outlet side of the second air passage 12 (the outlet side merging portion between the heating passage 16 and the bypass passage 18) are The air passages 11 and 12 have air passages 22 through which the temperature-controlled air communicates with the foot outlets 23, 24, and 25 described later.

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

The rear seat foot outlet 24 is located between the driver seat foot outlet 23 and the passenger seat foot outlet 25, that is, on an extension line of the center plate 10 extending partway through the air passage 22. .
Thereby, the air that has 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 passengers in the driver's seat and the rear seat, The air that has passed through the two air passages 12 passes through the foot outlet 24 for the rear seat and the foot outlet 25 for the passenger seat, and is blown out to the feet of the passenger in the passenger seat and the rear seat.

  On the outlet side of the first air passage 11, a second partition member (sub-plate) 26 extending from the downstream side to the ventilation path 22 is provided, so that the ventilation path 22 is provided with a foot outlet for a driver's seat. 23 and the foot outlets 24 and 25 for the rear seat and the passenger seat are completely partitioned.

  On the upstream side of the ventilation path 22, a driver seat foot damper 27 that can open and close a driver's seat foot outlet 23 and a rear seat and passenger seat foot outlets 24 and 25 can be integrally opened and closed. 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 upstream of the ventilation path so as to blow out the temperature-controlled air toward the upper body of the driver's occupant.
As shown in FIG. 1, the face outlet 29 for the driver's seat branches so that the blown air is directed from the center and side of the passenger compartment to the driver's occupant.

On the outlet side of the second air passage 12 on the upstream side of the ventilation path, a face outlet 30 for the passenger seat is provided to blow out temperature-controlled air toward the upper body of the passenger in the passenger seat.
As shown in FIG. 1, the passenger seat face outlet 30 is branched so that the blown air is directed from the center and side of the passenger compartment to the passenger in the passenger seat.

  The driver seat and passenger seat face outlets 29, 30 are provided with a driver seat face damper 31 and a passenger seat face damper 32 that can open and close each outlet 29, 30.

  In addition, as the air blowing ports, differential blowing ports 33 and 34 for removing fog such as windshields are provided upstream of the face blowing ports 29 and 30. However, the differential outlets 33 and 34 are arranged in common on the left and right sides so as to blow out air at a uniform temperature on the driver side and the passenger side, and the differential outlets 33 and 34 can be opened and closed. 35 is also common, but is shown as a separate one 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 a main part of the air conditioner 1, FIG. 4 is a perspective view of a driver's foot damper 27, and FIG. 5 is a perspective view of an integrated foot damper 28.

  As shown in FIG. 3, the sub-plate 26 is formed in an L-shape along the shape of the ventilation path 22 from the upstream side of the ventilation path 22 toward the foot outlet 23 for the driver's seat. The foot outlet 23 is attached so as to be completely isolated from the foot outlets 24 and 25 for the rear seat and the passenger seat. Thus, the temperature-controlled air is guided so as to pass only toward the foot outlet 23 for the driver's seat in the ventilation path 22.

That is, the sub-plate 26 partitions the air passage 22 on the driver's seat side so as to communicate with 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 passenger seat).
Note that the shape of the sub-plate 26 is not limited to the L-shape, and any shape can be used as long as the above function is achieved.

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

On the other hand, on the upstream side of the air passage 22 surrounded by the inner wall of the air conditioning case 2 that separates the sub plate 26 and the center plate 10, foot outlets 24 and 25 for the rear seat and the passenger seat are respectively integrated. An integral foot damper 28 that can be opened and closed is attached.
As a result, the air blowing from the rear air outlets 24 and 25 for the front passenger seat is controlled integrally.

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

  As a result, in the ventilation path 22, the passage partitioned by the center plate 10 and the sub plate 26 and the passage partitioned by the center plate 10 and the inner wall of the air conditioning case 2 are integrally opened and closed. It is possible to integrally control the temperature-controlled air blow-out from the foot blow-out openings 24 and 25 for the passenger and passenger seats.

According to the present embodiment, in the ventilation path 22, the sub-plate 27 that completely separates the foot outlet 23 for the driver's seat and the foot outlets 24, 25 for the rear seat and the passenger seat independently. By providing the driver-operated foot damper 27 and the integrated foot damper 28 that can be opened and closed, the following effects can be obtained.
As the driver's seat foot damper 27 is opened and the integrated foot damper 28 is closed, power consumption can be suppressed by performing one-seat concentrated operation in which air is intensively blown out from the driver's seat foot outlet 23, Since the rear and front passenger foot outlets 24 and 25 can be closed together, the number of parts can be reduced, and cost reduction and control convenience can be achieved.

  Further, according to the present embodiment, the driver's seat foot damper 27 is closed, and the integrated foot damper 28 and the driver's seat face damper 31 are opened, so that passengers other than the driver (driver's seat) (passenger seat and rear seat) The air can be blown out toward the feet of the rear seat of the driver's seat, and the driver can blow out air toward only the upper body.

  Moreover, in the said embodiment, it is good also as a structure replaced so that the foot blowing ports 23-25 may be used as face blowing ports, and the face blowing ports 29 and 30 may be used as foot blowing ports. In this case, air can be intensively blown out from the face outlet for the driver's seat.

  The illustrated embodiments are merely examples of the present invention, and the present invention is not limited to those directly described by the described embodiments, and various improvements and modifications made by those skilled in the art within the scope of the claims. Needless to say, it encompasses changes.

1 ... Air conditioner (HVAC unit)
2 ... Air conditioning case 3 ... Air passage 4 ... Inside air inlet 5 ... Outside air inlet 6 ... Inside / outside air switching door 7 ... Filter 8 ... Blower 9 ... Evaporator 10 ... First partition member (center plate)
DESCRIPTION OF SYMBOLS 11 ... 1st air path 12 ... 2nd air path 13, 14 ... Partition walls 15, 16 ... Heating path 17, 18 ... Bypass path 19 ... Heater core 20, 21 ... Air mix door 22 ... Ventilation path 23 ... For driver's seat Foot outlet 24 for the driver's seat and passenger seat side rear foot outlet 25 ... passenger seat foot outlet 26 ... second partition member (sub-plate)
27 ... Driver's seat foot damper 28 ... Integrated foot damper 29 ... Driver's seat face outlet 30 ... Passenger face face outlet 31 ... Driver's seat face damper 32 ... Passenger seat face dampers 33, 34 ... Differential outlet 35 ... Differential outlet damper 36 ... Ditch

Claims (3)

An automotive air conditioner including a first partition member that partitions 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, a temperature-controlled air communicates with the driver side air outlet and the passenger side air outlet,
A second partition member that divides the ventilation path so as to communicate with an outlet for a driver's seat and an outlet other than the outlet for the driver's seat;
A damper for a driver's seat capable of opening and closing a ventilation passage partitioned to communicate with the outlet for the driver's seat;
An integrated damper capable of integrally opening and closing a ventilation path partitioned to communicate with an outlet other than the outlet for the driver seat;
Comprising
By opening the driver seat damper and closing the integrated damper, air is intensively blown out from the driver seat outlet ,
The integrated damper opens and closes in the longitudinal direction of the first partition member, and includes a concave groove that avoids interference of the first partition member during the opening and closing operation, thereby blowing out air other than the driver seat outlet. An automotive air conditioner characterized in that the mouth can be integrally opened and closed . Wherein each outlet is claim 1, characterized in that the passenger's feet foot outlet which is provided to blow air toward the, or face blowout port provided to blow air toward the upper body of the occupant The air conditioner for automobiles described in 1. Each of the outlets is a foot outlet provided to pass air toward the feet of the occupant,
The air passage is configured to include, on the upstream side of the ventilation path, a face outlet for a driver's seat, and a face damper for a driver's seat capable of opening and closing the face outlet for the driver's seat,
By opening the driver seat face damper and the integrated damper, and closing the driver seat damper, air flows from the foot outlets other than the driver seat outlet and the driver seat face outlet. The automobile air conditioner according to claim 1, wherein the air conditioner is blown out.