JPS6336810Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an air conditioner for an automobile.

Japanese Utility Model Application Publication No. 57-100513 has been known as an air conditioner for automobiles that improves the air-conditioned atmosphere.

Such a conventional device is configured to operate a shutter that opens and closes an auxiliary passage connected to an upper air outlet passage depending on the solar radiation state. In other words, it is configured to control the heat load condition only by solar radiation, and cannot handle heat load conditions other than solar radiation that affect the air conditioned atmosphere. Therefore, the air conditioned atmosphere during each blowout mode other than the time of solar radiation can be controlled according to the occupant's preference. It could not be adjusted arbitrarily.

The present invention has been developed in view of the above circumstances, and is designed to adjust the mixing ratio of cold air and hot air by opening and closing the control door and the upper door to increase the temperature of the upper air outlet in the bilevel mode. This air conditioner for automobiles is capable of controlling the temperature of the upper and lower blowing air individually according to the passenger's preference, and also has a heating mode from the lower air outlet and a cooling mode from the upper air outlet. The goal is to provide equipment.

Embodiments of the automotive air conditioner according to the present invention will be described below with reference to the drawings. First, Figures 1 to 6
A first embodiment of the present invention will be described based on the drawings. 1 and 2 are a side view and a plan view of the device of the present invention, and in both figures, 1 is a cooling unit, inside which a blower 2, an evaporator 3, and a heater core 4 are sequentially arranged from the upstream side. There is. An inside air intake port 5 and an outside air intake port 6 are opened on the blower 2 side of the cooling unit 1, and the intake amount or mixed amount of inside and outside air from these intake ports 5 and 6 is communicated to an intake door (not shown). It is now possible to adjust the The evaporator 3 is connected to equipment such as a compressor and a condenser (not shown) to form a cooling cycle with a well-known configuration. The heater core 4 takes in hot water from a high-temperature part of the engine cooling water circulation system and discharges it to the water pump inflow side of the circulation system, and a hot water flow rate control valve provided in the hot water inflow pipe 7. The amount of heating can be adjusted at 8. A bypass opening 10 with a control door 9 is provided between the evaporator 3 and the heater core 4 . An upper opening 12 having an upper door 11 is provided at the upper part of the downstream side of the heater core 4 . Each opening 1
0 and 12 are connected to each other by an upper duct 13. The upper duct 13 has air outlets 14 and 15 for blowing out conditioned air on the left and right sides of the upper part of the rear part of the vehicle compartment. The lower part of the heater core 4 on the downstream side has a lower opening 17 equipped with a lower door 16, and this lower opening 17 has lower openings 18 and 19 equipped with air outlets 18 and 19 for blowing out conditioned air to the left and right sides of the lower part of the rear part of the vehicle compartment. A duct 20 is connected.

Cooling unit 1 configured in this way
As shown in FIGS. 3 and 4, the passenger car 21
In this case, it is arranged, for example, in the rear trunk 22 so that air can be taken in from inside and outside, and the upper duct 13 is attached to the pillar and the inner surface of the roof.
A lower duct 20 is arranged under the rear seat. Also,
In a wagon vehicle, the cooling unit 1 is installed at any position in the rear space, for example, at the rear, on the side, or under the floor of the vehicle body. And the operation panel 23
By selecting each mode with the mode selection lever 24 provided in the door 9, 11, 16,
are now controlled to open and close. That is, only when the mode selection lever 24 is in the bilevel mode position, the control door 9
4, and the opening degree can be freely adjusted using a bilevel mode temperature control lever 25. Each mode and door 9, 11, 1
The relationship between the opening and closing states of 6 is as shown in FIG. In the upward blowing mode, the upper door 11 is opened, the lower door 16 is closed, and the control door 9 is opened in conjunction with the upper and lower doors 11 and 16. In addition, in the downward blowing mode, the upper door 11 is closed, the lower door 16 is opened, and the control door 9 is opened by the upper and lower doors 1.
It is closed in conjunction with 1 and 16. Furthermore, in the bilevel mode, both the upper and lower doors 11 and 16 are opened, but the control door 9 is
16, the opening degree can be freely adjusted using a separate bilevel mode temperature control lever 25. The intake lever 26 controls the opening and closing of the intake door, which adjusts the intake amount of internal and external air, and the temperature control lever 27 controls the opening and closing of the hot water flow rate control valve 8. Further, the blower 4 is controlled by a fan switch 28.

Note that 29 is an air conditioner switch that operates the evaporator 3, and 30 is a heater switch that controls and operates the electromagnetic hot water flow rate control valve 8.
The degree of heating is controlled by the temperature control lever 27. 31 is a front seat air conditioner.

The operation of the automotive air conditioner of the present invention configured as above will be explained. For cooling, turn off the heater switch 30 and set the mode selection lever 24 to the upward blow mode (face mode). As shown in FIG. 6, the control door 9 and the upper door 11 open, and the lower door 16 opens. The cold air from the evaporator 3 passes through the side passage opening 10 and the upper opening 12, passes through the upper duct 13, and is blown out from each outlet 14 and 15 to the upper part of the vehicle interior. In addition, when heating, turn on the heater switch 3.
0 is turned on and the mode selection lever 24 is set to the lower blow mode (foot mode), the lower door 1
6 are closed, and hot air that has passed through the evaporator 3 and the heater core 4 is blown out from the respective blow-off ports 18 and 19 to the lower part of the vehicle interior through the lower opening 17 and the lower duct 20. Furthermore, when the mode selection lever 24 is set to bilevel mode, the upper and lower doors 11,1
6 is opened, and the control door 9 can be controlled independently. Therefore, by adjusting the opening degree of the control door 9 with the temperature control lever 25 for bilevel mode, the amount of cold air passing through the side passage opening 10 is controlled, and as a result, this cold air and the upper part heated by the heater core 4 are controlled. By adjusting the amount of mixture with the warm air passing through the opening 12, the temperature of the conditioned air blown out from the blow-off ports 14 and 15 can be freely adjusted. Therefore, the temperature of the conditioned air blown out from the air outlets 14 and 15 of the upper duct 13 can be made different from the temperature of the air blown out from the air outlets 18 and 19 of the lower duct 20, and this temperature difference is also caused by the control door 9. Can be adjusted freely by adjusting the opening.

7 and 8 are a side view and a plan view showing a second embodiment of the device of the present invention, and in both figures, 1a is a cooling unit, which divides the inside of the heater core 4a into left and right halves. Correspondingly, the downstream side of the heater core 4a is divided into two by a partition wall 32, and two upper and lower openings 12a, 12b, 17a, and 17b are provided on the left and right sides. Each opening 12a, 12b, 17
a, 17b are upper and lower doors 11a, 11b, respectively;
16a and 16b. Also, side passage opening 10
A and 10b are provided on the left and right, and a control door 9 is installed on each side.
a and 9b are attached. This control door 9a,
9b may be opened and closed integrally or may be opened and closed individually, and such opening and closing operations may be performed by a motor actuator or a mechanical linkage. The left side passage opening 10b and the upper opening 12b are connected by an upper duct 13b,
Conditioned air is blown out from the air outlet 14a of the upper duct 13b to the upper left side of the vehicle interior. The right side passage opening 10a and the upper opening 12a are connected by an upper duct 13a, and conditioned air is blown out to the upper right side of the vehicle interior from the air outlet 15a of the upper duct 13a. Lower opening 17
Lower ducts 20a and 20b are connected to a and 17b, respectively, and conditioned air is blown out from each outlet 18a and 19a to the lower left and right sides of the vehicle interior, respectively. On the other hand, to divide the heater core 4a into two,
Since the heater core 4a consists of an upper tank and a lower tank, and each tank is connected by a large number of water pipes having fins, only the lower tank into which hot water flows can be divided into two by a partition wall in the center. For example, the hot water flow path can be divided into two, and hot water inflow pipes 7a and 7b each having hot water flow rate control valves 8a and 8b are connected to the left and right divided lower tanks. It is sufficient to provide one outflow pipe in the upper tank.

Therefore, if each hot water flow rate control valve 8a, 8b is controlled, the upper and lower ducts 13a, 13b, 20a, 2
The temperature of the conditioned air blown out through the upper duct 13 can be adjusted individually on the left and right sides, respectively, and in the bilevel mode, the opening degree of the control doors 9a and 9b can be freely adjusted independently.
It is possible to freely create a temperature difference between the conditioned air blown out through the lower ducts 20a and 20b and the conditioned air blown out through the lower ducts 20a and 20b. Each control door 9a, 9b is operated by a temperature control lever for left and right bilevel modes, and each hot water flow rate control valve 8a, 8b is operated by a temperature control lever for left and right, respectively.

As described above, the automotive air conditioner according to the present invention includes a blower, an evaporator, and a heater core provided downstream from the evaporator, and a control door is provided between the evaporator and the heater core, and a control door is provided between the evaporator and the heater core. A side passage opening through which the wind passes is provided, and an upper opening equipped with an upper door is provided at the upper part of the downstream side of the heater core, and each of these openings is connected with a duct to blow out conditioned air to the upper part of the vehicle interior. a lower air outlet provided with a lower door is provided at the lower part of the downstream side of the heater core, a duct is connected to the lower air outlet to blow out conditioned air to the lower part of the vehicle interior, and the control door is connected to the lower air outlet provided with a lower door. , when in the upper blowing mode and the lower blowing mode, the control door is connected in conjunction with the opening and closing operations of the upper door and the lower door, and in the bilevel mode, the control door is released from the interlocking with the upper and lower doors and becomes independent. This feature is characterized in that the opening can be adjusted to any desired opening position.

Therefore, it is possible to create a difference between the upper and lower outlet air temperatures, and this temperature difference can be freely adjusted according to the passenger's preference. It is very convenient, and also allows you to freely select a heating mode with lower airflow or a cooling mode with upper airflow, providing a comfortable air-conditioned atmosphere.

[Brief explanation of drawings]

1 to 6 show a first embodiment of the automotive air conditioner of the present invention, FIG. 1 is a side view of the device of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a view of the device of the present invention. Figure 4 is a side view of a passenger car equipped with the same, and Figure 4 is a rear view of the same.
FIG. 5 is a front view of the operation panel, FIG. 6 is a diagram showing the relationship between each mode and the opening/closing state of each door, FIG. 7 is a side view showing the second embodiment of the device of the present invention, and FIG. FIG. 2... Blower, 3... Evaporator, 4, 4a
... Heater core, 9, 9a, 9b ... Control door,
10, 10a, 10b... side passage opening, 11, 11
a, 11b...upper door, 12, 12a, 12b
...Top opening, 13, 13a, 13b...Top duct, 14, 14a, 15, 15a, 18, 18
a19, 19a...Air outlet, 16, 16a, 16
b...Lower door, 17, 17a, 17b...Lower opening, 20, 20a, 20b...Lower duct.

Claims (1)

[Scope of utility model registration request] It has a blower, an evaporator, and a heater core provided on the downstream side of the evaporator, and a control door is provided between the evaporator and the heater core, and a side passage opening through which air from the evaporator passes; At the top of the downstream side,
An upper opening provided with an upper door is provided, and each of these openings is connected by a duct to blow out conditioned air to the upper part of the vehicle interior, and a lower blower provided with a lower door is provided at the lower part of the downstream side of the heater core. An outlet is provided, and a duct is connected to the lower outlet to blow out conditioned air to the lower part of the vehicle interior, and when the control door is in the upper outlet mode and the lower outlet mode, the upper door and the lower door are opened and closed. The control door is connected so as to be interlocked with the operation, and in the bilevel mode, the control door is disengaged from the upper and lower doors and is adjusted independently to an arbitrary opening position. Automotive air conditioner.