JPH08131391A - Condenser for dish washer/drier - Google Patents

Abstract

PURPOSE: To achieve a higher drying performance by surely removing steam mixed with air within a chamber in a dish washer/drier to which a circulation drying method is adopted. CONSTITUTION: A condenser 17 is provided in the course of a force circulation path 21 of air within a chamber to use water branching off a water supply pipe 3 for washing as cooling water of the condenser 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a condensing device for a dishwasher.

[0002]

2. Description of the Related Art In a dishwasher, when a circulation drying method is adopted in which the air in the refrigerator is forcedly circulated to dry the dishes in the drying process after the washing is finished, the air in the refrigerator in a high temperature and high humidity state remains unchanged. Since the efficiency of drying is poor when circulated, it has been conventionally practiced to condense the water vapor contained in the air in the refrigerator to remove water and then blow it into the refrigerator.

As a condensing method in this case, conventionally, the washing tank itself is cooled and the air in the refrigerator is blown against it, or the wall mounted inside the washing tank is cooled and the air in the refrigerator is blown to it. The steam was being condensed by hitting.

Further, the steam is cooled by using a circulation fan and a cooling fan installed in the circulation path and the cooling path of the internal air,
In some cases, condensation was performed.

[0005]

However, in the conventional condensation method as described above, there is a possibility that the condensation performance may be poor or that steam may leak from the circulation path.

Therefore, an object of the present invention is to improve the condensing performance without leaking steam to the outside.

[0007]

In order to achieve the above object, the present invention provides a dishwasher / dryer in which air in the refrigerator is forcedly circulated to dry the dishes at the time of the drying step after the washing. A condenser is provided in the middle of the forced circulation path of the internal air, and water branched from the water supply pipe for cleaning is used as cooling water for the condenser.

The condenser may be constructed such that the water branched from the water supply pipe is retained in the condenser, and the forced lubrication passage for the air in the refrigerator is passed through the condenser.

A fan is provided inside the condenser,
The water branched from the water supply pipe may be applied to the fan to be sprayed in the condenser.

Further, the water branched from the water supply pipe is retained in the condenser, the condenser is filled with a porous member, and the forced circulation path of the air in the refrigerator is connected to the lower inlet and the upper outlet of the condenser. It is also possible to have a configuration in which it is connected between and.

[0011]

According to the above construction, the condenser is provided in the middle of the forced circulator of the internal air, and the water separated from the water supply pipe for washing water is used for cooling the condenser, so that steam does not leak outside. And, the condensation performance is improved.

[0012]

EXAMPLES The examples shown in the accompanying drawings relate to dishwashers. The outline of the dishwasher will be described with reference to FIGS. 1 and 2.

First, when the door 1 is opened and the tableware basket containing the tableware is put in the washing tank 2 provided in the refrigerator, the door 1 is closed and the start button is operated, the water supply pipe 3 (FIG. 2) is opened. Water is then supplied from the water supply port 4 into the cleaning tank 2. The water in the cleaning tank 2 is guided from the bottom to the float chamber 5 and the water level is detected.

When the predetermined water level is reached, the pump 6 is driven and the heater 7 is energized, and the heated cleaning water is jetted from the nozzles 8 and 9 on the bottom surface and the ceiling surface of the cleaning tank 2 for cleaning. The cleaning water returns to the pump 6 through the tank 10 provided at the bottom of the cleaning tank 2.

When the cleaning is completed, the pump 6 is switched to the drain mode, and the water in the cleaning tank 2 is drained to the outside through the trap 11. Then move to the drying process. In the drying process, the blower 12 is driven, the air in the refrigerator is sucked from the suction port 13, and the blower port 14 is passed through the internal forced circulation path 21.
Blow out from inside.

A branch pipe 15 branched from the water supply pipe 3 is connected to the inside of the casing of the blower 12 through a valve 16, and the branch pipe 15 is bent downward in a U-shape inside the casing to form a condenser 17. It is configured (see FIGS. 2 and 3).

Branch pipe 15 exiting from the condenser 17
The lower end of the trap 11 is connected to the front of the trap 11, and the drain pipe 19 provided on the bottom surface of the blower pipe 18 forming a part of the forced circulation path 21 for the air in the refrigerator is similarly connected to the front of the trap 11. There is.

In the above dishwasher / dryer, when the drying process is started, the blower 12 is driven, the valve 16 is opened, and the cooling water is sent to the condenser 17. The air in the refrigerator sucked through the suction port 13 is cooled and condensed around the condenser 17. The water droplets generated by the condensation fall into the blower pipe 18 and are discharged through the drain pipe 19.

In the second embodiment shown in FIG. 4, the forced circulation path 2 for the air in the refrigerator between the suction port 13 and the blower 12 is provided.
A part of 1 is bent into a U shape and inserted into the condenser 17a. The branch pipe 1 is provided below the condenser 17a.
5 is connected to collect cooling water therein, and an overflow pipe 22 is connected to the upper part thereof. The overflow pipe 22 has the trap 1 as in the case of the first embodiment.
Connected in front of 1.

The drain pipe 19 is connected to the lowest portion of the forced circulation path 21 bent in a U shape, and the drain pipe 19 is connected to the drain pipe 19.
The tip of the is guided to the float chamber 5. The drain pipe 19 may be connected in front of the trap 11 as in the first embodiment. With such a configuration, cooling and condensation of the air in the refrigerator can be performed more reliably.

In the third embodiment shown in FIG. 5, a fan 24 driven by a motor 23 is provided inside the condenser 17b provided in the middle of the forced circulation path 21 for the air in the refrigerator.

On the other hand, a branch pipe 15 is provided in the middle of the water supply pipe 3 via a valve 16, the branch pipe 15 is inserted into a condenser 17b, and the cooling water sprayed from the branch pipe 15 is applied to the fan 24. It is like this.

The fan 24 is jetted from the branch pipe 15
The water hitting is contacted with the internal air sucked into the condenser 17b by the rotation of the fan 24, and cools and condenses the water vapor contained therein.

In the fourth embodiment shown in FIG. 6, an air pump 25 is provided in the middle of the forced circulation path 21 in place of the blower 12, and a condenser 17c is connected to the outlet side of the air pump 25. . The forced circulation path 21 is connected to the lower inlet and the upper outlet of the condenser 17c.

Inside the condenser 17c, a porous member such as a punching board 26 is provided in multiple layers, and a branch pipe 15 branched from the water supply pipe 3 through a valve 16 is connected to the lower portion thereof, and an upper portion thereof is connected thereto. The overflow pipe 22 is connected to.

When entering the drying process of the dishwasher and supplying cooling water from the branch pipe 15 into the condenser 17c and driving the air pump 25, air inside the refrigerator is blown into the condenser 17c, and the punching board 26 is blown. It is cooled and condensed while passing through the inside of the hole, then rises and returns to the inside of the refrigerator again.

When the circulation drying method is not adopted, the pipe on the outlet side of the condenser 17c is opened to the outside as shown by the chain double-dashed line in FIG. In this case, since the air discharged to the outside is dehumidified and cooled, it does not matter if it is discharged indoors.

[0028]

Since the present invention is as described above, the air in the refrigerator circulated for drying does not leak from the circulation passage. Further, since the water vapor is condensed and dehumidified during the circulation, there is an effect that the drying performance is improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a first embodiment.

FIG. 2 is a partially cutaway rear view of the above.

FIG. 3 is a partial schematic cross-sectional plan view of the same as above.

FIG. 4 is a schematic side view of a condenser portion of the second embodiment.

FIG. 5 is a partially cutaway perspective view of a condenser portion of a third embodiment.

FIG. 6 is a sectional view of a condenser portion of a fourth embodiment.

[Explanation of symbols]

 1 Door 2 Cleaning Tank 3 Water Supply Pipe 4 Water Supply Port 5 Float Chamber 6 Pump 7 Heater 8 Nozzle 9 Nozzle 10 Tank 11 Trap 12 Blower 13 Suction Port 14 Blowout Port 15 Branch Pipe 16 Valve 17, 17a, 17b, 17c Condenser 18 Blower Pipe 19 Drain pipe 21 Forced circulation path 22 Overflow pipe 24 Fan 25 Air pump 26 Punching board

Front page continuation (72) Inventor Takaaki Isshiki 1-20-5 Tenma, Kita-ku, Osaka City Zojirushi Mahobin Co., Ltd. (72) Inventor Kazuhiro Nishikawa 1-20-5 Tenma, Kita-ku, Osaka City Zojirushi Mahobin Stock In the company

Claims (4)

[Claims] 1. A dishwasher and dryer in which air is forcedly circulated in the refrigerator to dry the dishes at the drying step after completion of washing, and a condenser is provided in the middle of the forced circulation passage of the air in the refrigerator. A condensing device for a dishwasher, wherein water branched from a washing water supply pipe is used as cooling water for the condenser. 2. The dishwasher / dryer according to claim 1, wherein the water branched from the water supply pipe is retained in the condenser, and the forced circulation path of the air in the refrigerator is passed through the condenser. Condensing device. 3. A condenser for a dishwasher according to claim 1, wherein a fan is provided inside the condenser, and water branched from the water supply pipe is applied to the fan to be sprayed in the condenser. apparatus. 4. The water branched from the water supply pipe is retained in the condenser, a porous member is filled in the condenser, and a forced circulation path for the internal air is provided at a lower inlet and an upper outlet of the condenser. The condensing device for a dishwasher according to claim 1, wherein the condensing device is connected between