JPS5849837A - Air conditioner - Google Patents

Abstract

PURPOSE:To achieve the protection of a refrigeration cycle, a higher comfortableness of the heating and reduction in noises and vibrations by arranging a bypass air passage adapted to pass air during the cooling on the back of an air conditioner combining a cooler having a refrigeration cycle with a forced air feeding/exhausting combustor type heater. CONSTITUTION:In the heating, a knob 17 is pushed to stick out a check rod 16 toward a bypass 15 to close with a dampr 13 retained on a fixed support 26. Air 5 sucked from a suction port 4 passes through a heat exchanger 8 and a combustion chamber 7 and then, blown into the room as hot air from a diffusion port 1. On the other hand, in the cooling, the knob 17 is withdrawn to release the checking of the damper 13 with the checking rod 16. The air 5 pushes the dampler 13 to open, cooled in an evaporator 8 and then blown out from the diffusion port 1 passing through a set passage of the combustor 7 and the bypass 15. This permits a larger quantity of air for cooling but a smaller quantity of air for heating thereby enabling the protection of the refrigeration cycle, a higher comfortableness of the heating and reduction in noises and vibrations.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating and cooling engine that combines an air conditioner equipped with a refrigeration cycle and a heater equipped with a forced air supply and exhaust type combustor.

In this type of conventional air conditioner/heater, the evaporator and combustor are installed in the flow path of cold air and hot air to prevent damage, so a moderate amount of wind erosion is required. However, heating a pigeon coop does not require any amount of airflow during cooling, and if the wind speed from the outlet is not moderately controlled, it will feel cold. When cooling is required, if you switch the blower's motor tap and increase the rotation speed,
During heating, the noise is louder and the vibration of the cabinet increases. This invention is intended to eliminate the above-mentioned drawbacks. A bypass passage is formed on the back side of the air conditioner, and a bypass passage is formed at the entrance of the bypass passage. A damper is installed that opens the Ipass passage during cooling and closes it during heating.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.

A suction port 5 is provided at the lower part of the front side of the indoor unit (indoor unit) H, an outlet port 1 is provided at the upper part, and an evaporator 3,
A heat exchanger 8, a combustion chamber 7, a blower 2, and an operation/electrical box 11 are installed, and an air supply and exhaust pipe 9 is connected to the heat exchanger 8. A compressor 23, a condenser 22, and a blower 24 are installed in the outdoor unit. The discharge side of the compressor 23 is connected to the condenser 22, the condenser 22 is connected to the evaporator 3 via the refrigerant pipe 21, and the evaporator 3 is connected to the suction side of the compressor 23 via the refrigerant pipe 20. ing.

A bypass passage 15 is formed on the back side of the indoor unit) H via a partition plate 14, and a damper 13 is attached to the entrance thereof so as to be able to swing around a damper shaft 12 as a fulcrum. A damper 1 is provided at the lower end of the partition plate 14.
A stopper piece 26 is installed on the fixed receiver for stopping the receiver 3 in the closed position, and one end of the stopper rod 16 is made to protrude above the stopper piece 26 of the fixed receiver. One end of the stop rod 16 is connected to the partition plate 1
The insertion opening 19 is passed through the lower end of 4, the middle part is supported by a support 018, and a knob 17 is attached to the other end. The knob 17 is located on the outer wall surface of the operation/electrical box 11. Note that 25 represents the entire bypass device.

During heating, when the stopper 17 is pressed, the tip of the stopper rod 16 is connected to the bypass passage 1 as shown in FIGS. 2 and 3.
5 stands out. In this state, the fixed receiver of the damper 13 is stopped by the stopper piece 26 and is prevented from being opened by the stopper bar 16. The air 5 sucked in from the suction port 4 undergoes heat exchange with the heat exchanger 8 and the combustion chamber 7, becomes leakage air, passes through the blower 2, and blows out from the blowout port 1. In other words, during heating, the blown air flows only into the combustion chamber. pass.

During cooling, the knob 17 is pulled in to release the damper 13 from being restrained by the restraining rod 16, as shown in FIG. The suction air 5 undergoes heat exchange with the evaporator 3 to become cold air, passes through the passage where the combustor is installed and the bypass passage 15, and is discharged from the outlet 1 by the blower 2. The air 10 swings from the broken line state shown in FIG. 1 to the solid line state, and the bypass passage 15 is opened. That is, during cooling, the passage resistance in the air conditioner and heater is reduced and the air volume is increased. According to the invention described above, the following effects can be obtained.

(1) You can simplify the sequence by using one tap for the blower motor during heating and cooling.

(2) It is possible to adjust the ventilation resistance inside the aircraft, with a large air volume for cooling and a small air volume for heating, which can improve the film retention during the cold cycle and the comfort during heating.〇(3) Reduce noise and vibration. Can be made smaller.

[Brief explanation of the drawing]

1 and 2 are cross-sectional side views showing one embodiment of the present invention, with FIG. 1 showing the state during cooling operation, and FIG. 2 showing the state during heating operation. FIG. 3 is a perspective view showing the bypass passage and damper device in FIG. 2. 1...Air outlet 2...Blower 3...Evaporator
4...Suction port C...Combustion chamber 8...Heat exchanger
9... Supply and exhaust pipe 11... Operation and electrical box 1゛2...
・Damper shaft 13...Damper 14...Partition plate
15... Bypass passage 16... Stopping rod 17...
・Knob 18... Support port 19... Insertion port 22
...Condenser 23...Compressor 24...Blower
26...Fixed receiver is a stopper piece

Claims (1)

[Scope of Claims] In an air conditioner, a bypass ventilation passage is provided in a side passage in which an evaporator, a combustor, and a heat exchanger are arranged, and a bypass ventilation passage is provided with a means for ventilation only during cooling operation. The heating and cooling machine is running slowly. 2. An air-conditioning/heating machine according to claim 1, wherein the bypass ventilation path is formed protruding from the back side of the cooling/heating machine main body. 2. The air-conditioning/heating machine according to claim 2, wherein the KL9 means is a damper device that is opened by wind force and closed by a stop rod so as to ventilate only during cooling operation. 4. The damper device's restraining rod is operated on the front side of the air conditioner/heater body and inside the electrical box.