JPS62125911A - Air conditioning device for vehicle - Google Patents

Abstract

PURPOSE:To independently regulate the quantity and temperature of each of blow-out airs by making air which is sucked into a body case by means of a fan, flow out through upper and lower draft passages and upper and lower blow-out ports via air quantity regulating dampers respectively, after cooling said air by means of an evaporator. CONSTITUTION:Air inside a vehicle room or the open air is sucked into a body case 1 by means of a fan 2 and cooled when it passes through an evaporator 4. Then, the air is divided up and down by means of a partitioning board 6 and, when passing through an upper draft passage 8 and a lower draft passage 9, the proportion of air which passes through a heater 7 and air which bypasses the heater 7, is changed by means of air mix dampers 10, 11. The air that passes through the heater 7 is reheated by the heater 7 and, then, mixed with the air that bypasses the heater 7. Normally, since a connecting passage 16 is closed by an upper/lower passage connecting damper 17, the conditioned airs are blown out into the vehicle room through an upper blow-out port 12 and a lower blow-out port 14 having air quantity regulating dampers 13, 15 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to air conditioners for automobiles such as car air conditioners and trunk air conditioners.

(Prior art and its problems) In conventional air conditioners for automobiles, the volume and temperature of the conditioned air blown out from the upper outlet and the amount and temperature of the conditioned air blown out from the lower outlet are determined. cannot be controlled independently of each other. On the other hand, the amount of conditioned air and the comfortable range of temperature for the upper and lower parts of the vehicle differ for each passenger.

Therefore, with conventional devices, it is not possible to adjust the amount and temperature of conditioned air so as to simultaneously satisfy the comfort ranges of the upper and lower regions according to each person's preference. As a result, there is a problem in that it is not possible to meet a wide range of wishes from individual passengers.

(Means for Solving the Problems) The present invention was invented to solve the above problems, and its gist is to provide an integrated main body case and an air suction part of the main body case. with a fan installed in
an evaporator installed in the air passage on the downstream side of the fan; a partition plate that partitions the air passage into an upper air passage and an upper air passage on the downstream side of the evaporator; A heater that straddles the partition plate and partially occupies the upper and upper air ducts, and a heater that is installed in each of the upper and upper air ducts on the downstream side of the heater and that
an upper and lower air mix damper that adjusts the ratio of air that passes through the heater and air that bypasses the heater; at least two or more air outlets provided at the upper and lower sides of the main body case on the downstream side of the air mix damper; A vehicle for an automobile, comprising air volume adjustment dampers provided respectively, a communication passage communicating the upper and upper air passages on the downstream side of the air mix damper, and an upper and lower communication damper provided in the communication passage. It's in the air conditioner.

(Embodiment) An embodiment of the present invention is shown in the drawings, where ■ indicates an integrated body case disposed at the center in the width direction of the vehicle;
2 is a fan installed in the air suction part 3 of the main body case l;
4 is an evaporator installed in the air passage 5 on the downstream side of the fan 2; 6 is a partition plate downstream of the evaporator 4 that divides the air passage 5 into an upper air passage 8 and an upper air passage 9; and 7 is close to the evaporator 4. and installed across the partition plate 6 on the downstream side thereof,
A heater that partially occupies each of the upper air passage 8 and the upper air passage 9, 10 is an upper air mix damper installed in the upper air passage 8 on the downstream side of the heater 7, and 11 is an upper air passage on the downstream side of the heater 7. These air mix dampers 10.11 adjust the ratio of air passing through the heater 7 and air bypassing the heater 7. Reference numeral 12 denotes an air outlet provided at the upper part of the main body case 1 on the downstream side of the air mix damper 10, and an air volume adjusting damper 13 is provided at this air outlet 12. Reference numeral 14 denotes a lower outlet provided at the lower part of the main body case 1 on the downstream side of the air mix damper 11, and a wind Wk adjusting damper 15 is provided in the lower outlet 14. Reference numeral 16 denotes a communication passage that communicates the upper air passage 8 and the upper air passage 9 with each other on the downstream side of the air mix damper 10.11, and this communication passage 16 is provided with an upper and lower communication damper 17. 18 is ventilation passage, 19 is ventilation passage 1
8 is a defrost air outlet formed above the ventilation passage 1, and 20 is a foot air outlet formed below the ventilation passage 1, and this foot air outlet 20 is provided with an air volume adjusting damper 21.

A liquid refrigerant is supplied to the evaporator 4, and when air flows through the evaporator 4, it exchanges heat with the liquid refrigerant and is cooled, and at the same time, the liquid refrigerant evaporates and vaporizes.

The heater 7 is supplied with hot water that has been raised in temperature by cooling the engine, and when air passes through the heater 7, it is heated by exchanging heat with the hot water.

Air mix damper 1O1IL upper and lower communication damper 17, wind ff11! The damper 13.15.21 can be operated to occupy any opening between the solid line position and the dashed line position shown.

In this way, the air inside the vehicle or the outside air is sucked into the main body case l by the fan 2, and is cooled as it flows through the evaporator 4. Then, the air is divided vertically by the partition plate 6 and flows through the upper air passage 8 and the upper air passage 9. At this time, the air that passes through the heater 7 and the air that bypasses the heater 7 are separated by the air mix damper 10.11. The ratio can be changed. The air passing through the heater 7 is reheated as it passes through the heater 7, and then mixed with the air bypassing the heater 7. Thus, by adjusting the opening degree of the air mix damper 10.11, the temperature of the conditioned air flowing through the upper air passage 8 and the temperature of the conditioned air flowing through the upper air passage 9 can be arbitrarily adjusted independently.

Normally, the vertical communication damper 17 occupies the solid line position, and the communication path 1
6 is closed, the conditioned air that has flowed through the upper air passage 8 is blown out into the vehicle interior through the upper air outlet 12, and the conditioned air that has flowed through the upper air passage 9 is blown out through the lower air outlet 14 and into the air passage 18.
The air enters the vehicle, and is further blown out into the vehicle interior from the defrost outlet 19 and foot outlet 20. At this time, the air volume adjustment damper 13
By adjusting the opening degree of the upper air outlet 12, the air volume blown out from the upper air outlet 12 can be arbitrarily adjusted. Also, by arbitrarily adjusting the opening degree of the air volume adjustment damper 15, the air flow from the lower air outlet 14 to the ventilation passage 18 can be adjusted arbitrarily. You can arbitrarily adjust the amount of air blown out to the wind! By adjusting the opening degree of the adjustment damper 21, the ratio of the air volume blown out from the defrost outlet 19 and the foot outlet 20 can be arbitrarily adjusted.

If the vertical communication damper 17 is set to the position shown by the broken line and the vertical communication passage 16 is fully opened, the air passing through the upper air passage 8 and the upper air passage 9 will merge, so the maximum air volume will be set at the air outlet 12.19.2.
It is possible to blow out from one or more of 0. Note that if the air mix damper 10.11 is placed in the position shown by the solid line in the figure, maximum cooling performance can be achieved, and if it is placed in the position shown by the broken line in the figure, maximum heating performance can be achieved.

(Operations and Effects of the Invention) In the present invention, an integrated main body case, a fan installed in the air suction part of the main body case, and an evaporator installed in the air passage on the downstream side of the same fan, a partition plate that divides the air passage into an upper air passage and an upper air passage on the downstream side of the evaporator; and a partition plate that straddles the partition plate on the downstream side of the evaporator in proximity to the evaporator to partially occupy the upper and upper air passages. A heater, upper and lower air mix dampers that are installed in the upper and upper air passages on the downstream side of the heater and adjust the ratio of air passing through the heater to air bypassing the heater, and downstream of the air mix damper. at least two or more air outlets provided above and below the main body case on the side;
The fan consists of an air volume adjustment damper provided at each outlet, a communication path that communicates the upper and upper air passages downstream of the air mix damper, and an upper and lower communication damper provided in the communication path. The air sucked into the main body case flows through the evaporator and is cooled, and then is divided into the upper air duct and the upper air duct by the partition plate, and in the process of flowing through the upper air duct and the upper air duct, the air passes through the evaporator and is cooled. The temperature is adjusted independently by an air mix damper. Thereafter, the air is blown out from the upper and lower air outlets with the amount of air adjusted by the wind IT adjustment damper. Furthermore, if the upper and lower communication dampers are opened and the conditioned air flowing through the upper and upper air passages are merged, a large amount of air can be blown out from one or more of the air outlets. Since each device such as the evaporator, heater, upper and lower air mix dampers, and wind TG regulation damper is built into the integrated body case, the structure is simple and compact, and the upper and lower parts of the occupant The amount and temperature of the conditioned air blown to the area can be adjusted independently of each other, making it possible to improve the comfort level according to the wide range of wishes of the occupants, which vary from person to person.

[Brief explanation of drawings]

The drawing is a longitudinal sectional view showing one embodiment of the present invention.

Claims (1)

[Claims] An integrated main body case, a fan installed in the air suction part of the main body case, an evaporator installed in the air passage on the downstream side of the fan, and an upper air passage on the downstream side of the evaporator. a partition plate that partitions the upper and lower air passages into the upper and lower air passages; a heater that straddles the partition plate and partially occupies the upper and lower air passages on the downstream side of the evaporator; Upper and lower air mix dampers are installed in the lower air passages and adjust the ratio of air passing through the heater to air bypassing the heater, and upper and lower air mix dampers are provided at the upper and lower sides of the main body case downstream of the air mix dampers at least two or more air outlets, an air volume adjustment damper provided at each of the air outlets, a communication passage connecting the upper and lower air passages downstream of the air mix damper, and an upper and lower air flow passage provided in the communication passage. An air conditioner for an automobile characterized by comprising a communication damper.