JPH0522113U - Air conditioner for vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a vehicle air conditioner capable of selectively performing air conditioning of the entire passenger compartment and only the front seats. According to the present invention, in a vehicle air conditioner that circulates air-conditioned wind in a vehicle compartment to perform air conditioning of the vehicle compartment, a circulation fan provided between front and rear seats of the vehicle compartment, An air conditioner for a vehicle, comprising wind direction changing means for changing the blowing direction of the circulation fan to selectively circulate the air conditioned wind to the vicinity of the front seat including the driver's seat and the entire passenger compartment. Is configured.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle air conditioner.

[0002]

[Prior Art]

 FIG. 4 shows a side sectional view of a conventional air conditioner for a small automobile. In the figure, 1 is a compressor for air conditioning, 2 is a condenser, 3 is an expansion valve, 4 is an evaporator, 5 is a blower, 6 is a cool / hot air outlet, 7 is an air inlet, 8 is a steering wheel, and 9 is a driver's seat. 10 is a rear seat, 11 is a rear seat, and 12 is a small automobile.

The high-temperature, high-pressure refrigerant compressed by the compressor 1 is liquefied and condensed in the condenser 2, and is decompressed and expanded by the expansion valve 3. Further, the low-temperature liquid refrigerant is vaporized and evaporated in the evaporator 4, and the vaporized refrigerant is sucked into the compressor 1. Due to this action, the air that has passed through the evaporator 4 blows out the conditioned air (cool air is emitted in the case of cooling) from the cool / hot air outlet 6 by the operation of the blower 5. Further, the air circulated in the vehicle is sucked in from the air suction port 7 and circulates.

[0004]

[Problems to be solved by the device]

 The conventional vehicle air conditioner has the following problems to be solved.

That is, since the conventional device has a configuration in which the cold and warm air is spread over the entire passenger compartment assuming that all passengers are fully seated, the case where only a part of the passenger seats in the driver's seat or the front seat is present As a result, the extra space was cooled, resulting in waste.

Further, a large-sized blower 5 is required to allow the cool and warm air to reach the rear part of the vehicle, which hinders downsizing of the device.

In order to solve the above problems, it is an object of the present invention to provide a vehicle air conditioner capable of selectively air-conditioning the entire passenger compartment and only the front seats.

[0008]

[Means for Solving the Problems]

 The present invention is intended to provide the following vehicle air conditioners (1) and (2) as means for solving the above problems. (1) In a vehicle air-conditioning apparatus that circulates air-conditioned air in a vehicle compartment to air-condition the vehicle compartment, a circulation fan provided between front and rear seats of the vehicle compartment and the same circulation. A vehicle air conditioner characterized by comprising wind direction changing means for changing the blowing direction of the vehicle fan to selectively circulate the air conditioned wind around the front seats including the driver's seat and the entire passenger compartment. . (2) The vehicle air conditioner according to (1) above, further comprising a human body detection sensor that detects the presence or absence of a person in the seat and causes the wind direction changing means to select the wind direction. Harmony device.

[0009]

[Action]

 Since the present invention is constructed as described above, it has the following effects. (1) In the configuration of (1) above, a circulation fan is installed between the front seat and the rear seat of the vehicle compartment, and the air-conditioned wind is selectively supplied to the vicinity of the front seat and the entire vehicle compartment. Since the wind direction changing means for circulation is provided, when there is no person in the rear seat, the air direction changing means can be operated to circulate the air-conditioned wind only in the vicinity of the front seat, so that waste of air conditioning does not occur.

Further, in the case of air-conditioning the entire passenger compartment, the fan for circulation relays and urges the circulation of the air-conditioning air, so that the blower of the air-conditioning apparatus itself may be small. (2) In the configuration of (2) above, the human body detection sensor detects the presence or absence of a person in the rear seat, and whether the wind direction changing means is air conditioning only in the vicinity of the front seat or air conditioning of the entire passenger compartment. Is automatically selected and air-conditioned air is circulated, so that overall air conditioning and air conditioning only in the vicinity of the front seats can be selected quickly and accurately.

[0011]

【Example】

 First and second embodiments of the present invention will be described with reference to FIGS. The same components as those of the conventional example or the previous example are designated by the same reference numerals, and the description thereof will be omitted unless necessary.

First, a first embodiment will be described with reference to FIGS. 1 and 2. 1 and 2 are side cross-sectional views of this embodiment. FIG. 1 is a diagram showing a case where only a front portion of a vehicle compartment is air-conditioned, and FIG. 2 is a diagram showing a case where an entire vehicle compartment is air-conditioned.

In both figures, a circulating blower 13 composed of a blower fan 13 a and a rotatable guide 14 is provided as a cross-flow blower on the ceiling between the driver's seat and the rear seat of a small automobile. is set up. Other configurations are similar to those of the conventional example.

Next, the operation of the above configuration will be described. When the person is only in the driver's seat 9, the guide 14 rotates downward as shown in FIG. 1 to form the air flow around the driver's seat 9 as shown by the arrow.

When a driver is seated on the driver's seat 9 and the rear seats 10 and 11, the guide 14 of the circulation blower 13 rotates horizontally and backward as shown in FIG. Airflow is formed around the seats to air-condition the entire passenger compartment.

As described above, according to the present embodiment, when there is no person in the rear seats 10 and 11, the guide 14 can be operated downward to air-condition only the vicinity of the driver's seat 9, so the air-conditioning cost is reduced. There is an advantage that. Further, in the case of performing the entire air conditioning, the circulation blower 13 works as a relay device for sending the conditioned air to the rear of the vehicle compartment, so that the blower 5 can be small, and accordingly the air conditioner can be made small. There is.

Next, a second embodiment will be described with reference to FIG. FIG. 3 is a side sectional view of the present embodiment. A human body detection sensor 15 using infrared rays or the like for detecting whether or not a person is seated on the rear seats 10 and 11 is attached to the ceiling of the vehicle compartment. ing. The human body detection sensor 15 and the guide 14 of the circulation blower 13 are interlocked with each other by means not shown. When the human body detection sensor 15 detects a person on the rear seat 10 or the like, the guide 14 moves horizontally and rearward. If not, it is configured to rotate downward. Other than that, the configuration is the same as that of the first embodiment.

Since this embodiment is configured as described above, there are two cases shown in FIGS. 1 and 2 of the first embodiment, that is, a case where only the vicinity of the driver's seat 9 is air-conditioned, and a case where the entire vehicle compartment is air-conditioned. It is possible to automatically select and perform the two modes of air conditioning.

Further, according to the present embodiment, when the air conditioning is performed only in the vicinity of the driver's seat 9 or when the air conditioning of the entire vehicle compartment is performed without delay, the air conditioning is performed without delay, so that comfortable air conditioning is not performed. There is an advantage that air conditioning without waste, that is, energy saving air conditioning can be achieved at the same time.

[0020]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects (1) to (3). (1) When there is a person only in the driver's seat, the air-conditioning load can be reduced by about 30% because air conditioning can be performed only near the driver's seat (front seat) by operating the wind direction changing means. The load on the machine is reduced, and the fuel efficiency and running power of the vehicle are reduced. (2) When there are people in both the driver's seat and the rear seat, air conditioning is performed for the entire passenger compartment. At this time, the blower of the air conditioner should deliver the cool and warm air to the position of the circulation fan. After that, the circulation fan sends cool and warm air backward. Therefore, the blower of the air conditioner can be downsized.

(3) Due to the action of the human body detection centimeter, the wind direction changing means automatically selects the air-conditioning region with and without a person in the rear seat, so that the air-conditioning adjustment is appropriately performed and energy saving is achieved. Be beaten In addition, the operation load on the driver is reduced.

[Brief description of drawings]

FIG. 1 is a diagram of a driver's seat air conditioning state of a vehicle air conditioner according to a first embodiment of the present invention,

FIG. 2 is an air conditioning state diagram of the entire vehicle interior of the vehicle air conditioner according to the first embodiment;

FIG. 3 is a view showing a state of air conditioning in the entire vehicle compartment by detecting a human body in a rear seat of the vehicle air conditioner according to the second embodiment of the present invention;

FIG. 4 is an air conditioning state diagram showing a conventional vehicle air conditioner.

[Explanation of symbols]

 6 Cool / warm air outlet 13 Circulation blower 13a Fan 14 Guide 15 Human body detection sensor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Futa Furuta 1 Takamichi, Iwazuka-cho, Nakamura-ku, Nagoya-shi Mitsubishi Heavy Industries, Ltd. Nagoya Research Institute

Claims (2)

[Scope of utility model registration request] 1. A vehicle air conditioner that circulates air-conditioned air in a vehicle compartment to air-condition the vehicle compartment, and a circulation fan provided between a front seat and a rear seat of the vehicle compartment. An air conditioner for a vehicle, comprising: wind direction changing means for changing the blowing direction of the circulation fan to selectively circulate the air-conditioned air around the front seat including the driver's seat and the entire vehicle compartment. 2. The vehicle air conditioner according to claim 1, further comprising a human body detection sensor that detects the presence or absence of a person in a seat and causes the wind direction changing means to select the wind direction. Air conditioner.