JPS58153032A - Process for controlling dehumidification in air conditioning equipment - Google Patents

Abstract

PURPOSE:To eliminate a discomfort of occupants by arranging such that a fan may be started to operate even if a room humidity detected by a humidity controlling device is lower than a preset level in a preset time duration after a temporary standstill of fan adapted to blow an air into a room side heat exchanger when a compressor is stopped. CONSTITUTION:A humidity controlling device 203 and a temperature controlling device 204 are designed to close and open respectively at a higher and lower humidity and temperature in a room where an air conditioning equipment is operated. A switch 205 for switching between a cooling and dehumidifying operations is designed to bring its contacts A and B, and A and C to come into contact each other at cooling and dehumidifying operations respectively. When a room humidity is lowered than a preset level, the switch 205 is caused to close for stopping a compressor 101 and an outside fan 110. After a preset time duration, opening of the time switch 209 can cause an operating section 207a of relay 207 to open for closing the switch part 207b, thereby restarting merely a room side fan 109, even though the room humidity is low enough to keep a humidity controlling device closed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehumidification control method for an air conditioner.

Figure 1 shows a refrigeration cycle diagram of a conventional air conditioner with a gap of 11 (11).
．． Muroyu 1 side heat exchanger is 102. The first on-off valve is 103.
The aperture mechanism is +04. The indoor first heat exchanger is 105. The second opening/closing tf' is 106 degrees, and the aperture mechanism is 107 degrees. The second heat exchanger on the indoor side is 108 degrees, and the blower on the indoor side is 109 degrees. The outdoor air blower is indicated by +10.

During cooling operation, the first on-off valve 108tJ is closed and the second on-off valve +06 is open. Arrow 111 and arrow +1 are directed to the fidgeting heat exchangers 105, 108, and 102 by the indoor and outdoor air blowers 109 and +10.
2 blows a small amount of air to exchange heat. The refrigerant is compressed in the compressor lot, condensed in the outdoor heat exchanger +02, passed through the throttling mechanism 104, and then transferred to the indoor first heat exchanger 105.

It will be done.

1st opening/closing during lifting operation; f[l 08 &: J open 1
The second on-off valve 106 remains closed. The air blowers 109 and 110 on the indoor side and the outdoor side blow air as shown by arrow 111 and arrows 1 and 2, as in the case of cooling.

The refrigerant is compressed by the compressor +01, passes through the outdoor heat exchanger 102, the first on-off valve 103, and the indoor first heat exchanger 1.
05, it passes through the throttling mechanism 107, evaporates in the indoor second heat exchanger 108, and is sucked into the compressor 101 again.

During this dehumidification operation, the dehumidification operation is stopped when the humidity is adjusted by turning off the dehumidification operation by a signal from the humidity controller (not shown).
09 and +10, and the compressor 101 is stopped 1-. When the indoor air blower +09 stops, the moisture condensed on the surface of the indoor second heat exchanger 108 is prevented from reevaporating, but there is no air circulation in the room where the air conditioner is used. Unevenness occurs in temperature and humidity. In such a situation, the humidity controller cannot detect the accurate humidity in the room, and even if the Q1 degree in the room is above the level, the air conditioner will not restart, and this state will continue for a long time. It lasts for a while, so during this time, 1!14 areas of the occupants' lives will be harmed.

The present invention was invented to solve the above-mentioned conventional problems, and will be specifically explained below with reference to the drawings.

FIG. 2d shows an example of an electric circuit of an air conditioner suitable for carrying out the method of the present invention. The refrigeration cycle of the air conditioner is the same as that of the conventional example shown in FIG.

In FIG. 2, the compressor is 101. The first on-off valve is 10
3. The second on-off valve is 106. The indoor air blower is 109.
The outdoor air blower is 110. The power supply for the air conditioner is 201.
The operation switch is 202 degrees, and the humidity controller is 203 degrees. Temperature regulator lI': f: 204, cooling operation/dehumidification operation changeover switch (d 205).

The relays are shown as 206 to 2081, the time switch is shown as 209°, and the contacts are shown as tyfc. relay 2
The operating part of 06-208 is 206a-208u.

The switch portions are indicated by 20611-208++. The first on-off valve 103 and the second on-off valve 106 open when energized. The humidity controller 203 and the temperature controller 204 open.
The circuit is designed to close when the humidity and temperature in the room where the air conditioner is used are higher than the set values, and open when the humidity and temperature are lower than the set values. The switch 205 for switching between cooling operation and dehumidification operation has its contacts A and ■3 during cooling operation.
During dehumidification operation, the contacts A and 0 will be connected.
I'm here. When relay operation parts 206a and 20711 are not energized, their contacts 206b, 20? b is open circuit, and each contact 206b, 2071+ is closed when it is not energized.

When the relay operation unit 208a is energized, its contact 2
08 b is closed and 1 is not energized, contact 208
b becomes open circuit.

The time switch 209 closes when it is energized, and then opens after a certain period of time has elapsed.

During the ventilation operation, the power supply 20+ of the air conditioner is applied, and the operation switch 202 is set to 1 ventilation -1.

Then, since the operating portion 207a of the relay 207 is not energized, its switch portion 207b is closed, and the indoor air blower +09 is operated.

During cooling operation, 2fll of power is applied to the air conditioner and the operation switch 202 is set to 1 operation -1.

Then, contacts A and B of the changeover switch 205 for cooling operation and dehumidification operation are connected, and the second on-off valve +06 is energized and opened, and the operating portion 208a of the relay 208 is also energized, so the switch portion 208b is energized. is closed, the operating portion 206a of the relay 206 is energized, and its switch portion 206b is opened. As a result, relay 20
Since the operation part 7, minute 207a, is not energized, its contact 20? L+ is closed and the indoor air blower 109 is operated.

Further, the temperature controller 204 is closed when the set value J is high in the room where the air conditioner is being used, and the compressor +01 and the outdoor air blower +10 are operated. The temperature in the room where the air conditioner is used is lower than the set value of the temperature controller 204.

When the temperature controller 204 is turned off, the compressor lot and the outdoor air blower +10 are stopped. In this way, the indoor temperature is controlled by operating and stopping the compressor lot and the outdoor air blower 110 depending on the indoor temperature.1. Father, the humidity controller 203 is the switch part 2081 of the relay 208.
Since it is bypassed by +, cooling operation is performed regardless of its operation.

During dehumidification operation, the power supply 201 of the air conditioner is applied, and the operation switch 202 is set to [-operation-1].

Then, contact A and contact 0 of the 9) switching switch 205 for cooling operation and dehumidification operation are connected, and the first on-off valve +08 is energized and opened.

V-208 (7) Operation part 208a Since Vcid is not energized, its switch part j208b is open, so that the humidity in the room where the air conditioner is used is set to the humidity controller 203. When the temperature is higher, the operating part 206a of the relay 206 is energized and the switch part 206b is opened, so the operating part 207a of the relay 2C)7 is not energized, so the switch part 207b is closed, and the indoor air blower is closed. +09 is operated. In this state, when the indoor temperature is higher than the set value of the temperature controller 204, this circuit is closed, and the compressor +01 and the outdoor air blower +10 are also operated. Here, when the temperature in the room where the air conditioner is used is lower than the set value of the temperature controller 204, the temperature controller 204 is opened.
The operations of the compressor +01 and the outdoor blower +10 are stopped.

The temperature controller 204 adjusts the temperature in the room where the air conditioner is used, in the same manner as in the cooling operation. When the humidity in the room where the air conditioner is used becomes lower than the set value, the humidity controller 203 opens the circuit to stop the compressor 101 and the outdoor air blower +10, and also closes the operating section of the relay 206. 206n is no longer energized, its switch portion 206b is closed, and the operating portion 207n of the relay 207 is energized and the time switch 209 begins to operate. Father, switch part 207 of relay 207
b is opened by energizing its operating portion 207n, and the indoor air blower +09 is also stopped. After a certain period of time, the humidity in the room where the air conditioner is being used is low.
Even when the humidity regulator 203 is not closed, the time switch 209 opens and the relay 2 opens.
The operation part 207a of 07 is opened.

That switch part 20? +3 is closed, and the operation of only the indoor air blower 109 is resumed. Father, humidity controller 2
03 is opened and the compressor 101. If the temperature controller 203 is closed within a certain period of time after the operation of the indoor air blower 109 and the outdoor air blower 110 is stopped due to the humidity in the room where the air conditioner is used, the relay is activated. 2
The operation part 20611 of relay 207 is energized, the switch part 206b is opened, and the operation part 207 of relay 207 is turned on.
The switch part 207b is closed and the indoor air blower @ 109 is not operated, and depending on whether the temperature controller 204 is closed or open, the compressor 101 and the room The outer blower device 110 is in operation or stopped I.

In this manner, during dehumidification operation, the humidity and temperature in the room in which the room air conditioner is used are adjusted by the humidity controller 203 and the temperature controller 204.

As described above in detail with respect to the embodiments, in the present invention, the air conditioner is operated in dehumidifying mode.

When the indoor humidity detected by the humidity controller is lower than the set value, a future signal will cause the air blower to blow air to the indoor heat exchanger when the compressor stops. However, after a certain period of time, that is, a time sufficient for condensed moisture to drip onto the surface of the indoor heat exchanger, the air blower will continue to operate even if the indoor humidity detected by the humidity controller is lower than the set value. Since the device starts operating, it is possible to eliminate the discomfort felt by the occupants of the room due to the long-time stoppage of the blower, which is conventional.

However, the blower system stops at the same time as the compressor stops, and then stops for a certain period of time, which is long enough for the condensed water to drip onto the surface of the indoor heat exchanger, so the condensed water is not likely to re-evaporate. l! jJ+l can be done.

In addition, in the present invention, only the blower is operated after a certain period of time after the compressor is stopped, so the compressor, outdoor blower, and blower are operated after a certain period of time regardless of the indoor humidity. It also has the advantage of requiring less power than conventional systems that start at the same time.

[Brief explanation of drawings]

FIG. 1 is a system diagram showing a refrigeration cycle of a combined cooling/dehumidifying air conditioner, and FIG. 2 is a diagram showing an example of an electric circuit of an air conditioner suitable for carrying out the method of the present invention. 203... Humidity controller, 101... Compressor, 10
5゜108... Indoor heat exchanger, 1o9... Air blower. Attorney Akira Sakama Procedural amendment (voluntary) April zf, 1980, Harusho Shimada, Commissioner of the Japan Patent Office Display of the case 1982 Patent application No. 56267 Name of the invention Person who makes amendments to dehumidification control method for air conditioners Relationship to the case Patent applicant address: 2-5-1 Marunouchi, Shimo-shirota-ku, Tokyo Name (620) Mitsubishi Heavy Industries, Ltd. Agent Target of amendment 1) +31 Compression from line 175 to line 6 line 11 , chamber φ side heat exchange 5102. The first opening/closing 'JR' 106 is bent and 0.1 is compressed to 11'', and the chamber 1 heat exchanger 1f) 2
゜The first opening/closing step "passes through 103 and then 1 and 5111. 2) f'u)be/15ij l"'s 1 and ~1
] 4J1 is 5111 to 1. 3) (4) Be-719th line l A HC-1] A
,B. C-1 + Revised 11-. 4) (6) H/10 to 14 rfl' 1 cold no. i Gunbata V, 11.5 applies the power supply 201 of the air conditioner - 2nd opening/closing pull l' 1061 1 during cooling operation teeth! ! The air condition of the 11th aircraft? 11. Apply Ryo 2 [] 1, switch cold J sword 1st army rele, and remove l hired driver σ), switch Inochi 205) & connect point A and case point I3, and turn operation switch 202 [Connection]. Put it in the rotation. 2nd θ) opening/closing [10
61 and 81 cities. 5) f7j heh/1 division/j on lines 15 to 19,
Is the air conditioner on when operating ij? tN 2 [Apply Jl・
The first opening/closing valve 106 is opened. -1 (21 (During dehumidification operation, apply IL YuK 201 of the air conditioner, and connect switch 2 [ ] 5 for cooling and dehumidification operation) to connect terminal A and contact C. 3. Open and close the first operation;
t "103 opens when energized. Corrected to 11-1. 6) (7) 1 on line 719 opens when energized. 1 opens when energized. 1 7) (9) Base/1st row [switch 209 time up] 1 switch 2 [] 9 or time up 1
I am correcting this. 8) From 12n4t of fIO) BA/1 row 1, correct the air conditioner + lI machine to 1' 204t and the Js Rita P air conditioner to 111-.

Claims (1)

[Claims] When the indoor humidity detected by the humidity controller is lower than the set value during dehumidification operation of the air conditioner, the compressor is stopped by a signal to In a system that restarts compressor operation based on a future signal when the value exceeds the specified value. When the compressor stops, the blower that blows air to the indoor heat exchanger also stops for a while, but after a certain period of time, the indoor humidity detected by the humidity controller is lower than the set value, and the temperature drops to 1. A dehumidification control method for an air conditioner, characterized by starting operation of an air blower.