JP3094602B2 - Air conditioner for toilet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet air conditioner provided with a refrigeration cycle.

[0002]

2. Description of the Related Art A toilet air conditioner in which a condenser is arranged in a low tank is disclosed in Japanese Patent Application Laid-Open No. 2-115632. This toilet air conditioner radiates the heat generated in the condenser to the washing water in the low tank, thereby eliminating the need for an outside air intake / exhaust duct and reducing costs. It can be installed.

[0003]

However, when the flushing water is drained from the low tank and the condenser is exposed in the low tank, the amount of heat radiation is reduced until the water supply is completed, or the heat cannot be released. However, there is a problem that the cooling capacity is lowered and sufficient cold air cannot be obtained. The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a toilet air conditioner capable of cooling even from the start of water supply to the completion of water supply.

[0004]

As a specific means for solving the above-mentioned problems, there is provided a refrigeration cycle in which a refrigerant compressor, a condenser, a decompression device and an evaporator are sequentially connected, and a low tank for storing washing water is provided. In the toilet air conditioner in which the condenser is arranged, a sub-tank is provided in the low tank, a part of the condenser is arranged, and a water supply port corresponding to the sub-tank so as to start supplying water for washing from the sub-tank. An air conditioner for a toilet is provided.

[0005]

The operation of the toilet air conditioner is as follows. During the washing, the washing water in the sub-tank provided in the low tank is not drained, and since a part of the condenser is immersed, the heat is not dissipated. Further, by starting water supply from the water supply port corresponding to the sub tank, the flush water in the sub tank overflows to the low tank, and the flush water in the sub tank is replaced every time water is supplied.

[0006]

【Example】

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a toilet air conditioner. Refrigeration cycle A provided in the toilet air conditioner
Represents a refrigerant compressor 2, a condenser 3,
It comprises a pressure reducing device 4 composed of a capillary tube 4a and the like, an evaporator 5 provided with a blower 5a, and an accumulator 6. The condenser 3 has a refrigerant inflow pipe 8 and a refrigerant outflow pipe 9 formed at both ends of a zigzag bent portion 7 and is connected to the refrigerant circulation path 1.
0, and a part 7a of the zigzag bent portion 7 is disposed in a sub-tank 12 provided in the low tank 11.

A water supply pipe 13 is provided in the low tank 11.
And the downward water supply port 14 faces the upper opening of the sub tank 12. The water supply pipe 12 has a water supply valve 15.
Is provided. When the water level of the rinsing water w supplied into the low tank 11 reaches the set water level, the water supply valve 15 is closed by the operation of the float 16 that rises following the water level and stops the water supply. In the low tank 11, washing water w
A drain valve 17 for flowing the water to the toilet 10a of the flush toilet 10, an overflow pipe, and the like (not shown) are provided.

[0008] The operation of the refrigeration cycle A provided in the toilet air conditioner of the above configuration is already well known.
The operation of the condenser 3 will be mainly described below. Condenser 3
The high-temperature and high-pressure gas refrigerant sent to is cooled by the washing water w in the low tank 11 and the sub tank 12 and condensed and liquefied.

After the flush toilet 10 is used, when the drain valve 17 is opened and flush water w flows from the low tank 11 to the toilet bowl 10a, the water level of the low tank 11 drops and the zigzag bent portion 7 is exposed. However, the washing water w in the sub-tank 12 provided in the low tank 11 is not drained, the part 7a of the zigzag bent portion 7 remains immersed, and the heat radiation from the condenser 3 is not completely disabled. . In addition, the float 16 descends following the descending water level of the low tank 11, and the water supply valve 15 is opened to immediately supply water to the sub tank 12 from the downward water supply port 14 so that the flush water w in the sub tank 12 is discharged. It overflows to the low tank 11 and is replaced with new washing water w.

FIG. 2 shows the characteristics of the refrigeration cycle A in the above operating state. However, the temperature of the washing water w at the time of water supply is 20
℃, the capacity of the washing water w stored in the low tank 11 is 8
Liters. After 20 minutes have passed since the start of the operation after the water supply, the washing water w rises to about 38 ° C. Therefore, the amount of heat radiation from the condenser 3 is reduced, and the cooling capacity of the refrigeration cycle A is reduced from about 510 kcal / h to 470 kcal / h.
h.

Here, when the flush water w is drained from the low tank 11 using the flush toilet 10, the sub-tank 12
When no is used, the cooling capacity drops sharply as shown by the dashed line diagram in FIG. Further, immediately after the flushing water w flows from the low tank 11, the heat radiation from the condenser 3 becomes impossible, and the pressure of the high-pressure gas refrigerant further increases, so that the power consumption increases. Also, even if the condenser 3 is submerged by supplying water, it takes about 2 minutes for the cooling capacity to recover to the initial state without the high pressure of the gas refrigerant immediately decreasing, and during this time sufficient cooling capacity is exhibited. Can not.

On the other hand, the cooling capacity of the refrigeration cycle A in the present embodiment is reduced by about 5 kcal / h as shown by the solid line when the washing water w is drained, but it immediately starts to recover and the initial cooling time is short. Reach cooling capacity.

(Second Embodiment) FIG. 3 shows a second embodiment of the present invention.
8 and a downward water supply port 24 provided above are disposed substantially diagonally, and a partition plate 23 is provided on the bottom surface of the low tank 21 so that the low tank 21 is disposed on the drain valve placement side 21a.
And the water supply port arrangement side 21b.
The sub-tank 22 is located below 1b. The height of the partition plate 23 is about one-fourth of the water level at the completion of the water supply to the low tank 21. Then, a substantially central portion of the zigzag bent portion 27 of the condenser 13 is laid over the partition plate 23.

When the drain valve 28 is opened to drain the flushing water w, the flushing water w at the water level equal to the height of the partition plate 22 remains on the water supply port side 21b of the low tank 21 without being drained. The lower part of the zigzag bent portion 27 located at the position 21b remains immersed, and the heat radiation from the condenser 13 is not completely disabled. In addition, the float 26 descends following the water level of the descending low tank 21,
Immediately after the water supply valve 25 is opened, water supply from the downward water supply port 24 to the water supply port arrangement side 21b, which is the sub tank 22, starts vigorously, and the washing water w remaining on the water supply port arrangement side 21b.
Over the partition plate 23 to the drain valve arrangement side 21a. The cooling capacity characteristics of the refrigeration cycle A in the above operation state are substantially the same as those of the first embodiment, and therefore the description thereof will be omitted.

[0015]

According to the present invention, the water for washing in the sub-tank provided in the low tank is not drained at the time of washing, and a part of the condenser is immersed. By supplying water from the water inlet corresponding to the sub-tank, the flushing water in the sub-tank overflowed to the low tank first, and the flushing water in the sub-tank was replaced every time water was supplied. There is an effect that it is possible to provide an air conditioner for a toilet that can exhibit a sufficient cooling capacity until the completion of water supply.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a toilet air conditioner according to the present invention.

FIG. 2 is a graph showing the cooling capacity of the refrigeration cycle according to the present invention.

FIG. 3 is a sectional view of a raw tank according to a second embodiment.

[Explanation of symbols]

2. Refrigerant compressor, 3,13 ... Condenser, 4 ... Decompression device, 5 ... Evaporator, 7, 27 ... Zigzag bent part, 7a ... Part, 11 , 21 ... Low tank, 1
2,22 ... sub tank, 14,24 ... water inlet,
A: Refrigeration cycle, w: Rinse water.

Claims (1)

(57) [Claims] An air conditioner for a toilet, comprising a refrigeration cycle in which a refrigerant compressor, a condenser, a decompression device, and an evaporator are sequentially connected, and wherein the condenser is disposed in a low tank for storing washing water, wherein a sub tank is provided in the low tank. And a part of the condenser is disposed, and a water supply port is made to correspond to the sub-tank so as to start supplying water for washing water from the sub-tank.