KR100294866B1 - Dishwasher - Google Patents

Abstract

This invention aims at providing the dishwasher which is excellent in productivity while suppressing the deformation | transformation in manufacturing the heater pipe used for a dishwasher.

In order to achieve this object, in the present invention, the shape of the heat transfer member is set to a semi-cylindrical shape having substantially the same radius as the heater pipe shape, and is fixed by caulking the heater pipe and the heat transfer member.

Description

Dishwasher {DISHWASHER}

The present invention relates to a dishwasher, and more particularly to an improvement in the heater unit for converting the washing water into hot water.

Conventionally, in the dish washing machine, as shown in FIG. 4, the entire heater pipe 13 is covered with the heat transfer member 23, and as shown in FIG. The upper part is fixed with the fixing member 26 by a screw.

In addition, the structure of the heater part in a dishwasher is described, for example in Unexamined-Japanese-Patent No. 8-287913.

In the above configuration, coating the entire heater pipe 13 with the heat transfer member 23 may cause deformation of the heater pipe 13 due to high injection pressure during aluminum injection molding of the heat transfer member 23. Not only is it very difficult, but also the yield of the material is deteriorated.

On the other hand, when fixing the upper part of the heater pipe 13 with the fixing member 26 with a screw, it is necessary to process the outer periphery of the heater pipe 13 and the inner periphery of the heat transfer member 23 to a round shape. For this reason, since it was difficult to process, the air layer was easily generated between the outer periphery of the said heater pipe 13 and the inner periphery of the heat transfer member 23. In order to solve this, conventionally, it was necessary to necessarily use a filler with good heat transfer rate between the outer circumference of the heater pipe 13 and the inner circumference of the heat transfer member 23.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dishwasher with good productivity while suppressing deformation of the heater pipe.

In order to achieve the above object, a feature of the present invention is to make the shape of the heat transfer member into a semi-cylindrical shape of approximately the same radius as the heater pipe shape, and to fix the heater pipe and the heat transfer member to the coking structure of the heat transfer member. I'm having one.

In addition, the present invention is characterized in that the shape of the heat transfer member having a semi-cylindrical shape is larger than the diameter of the heater pipe in order to reduce the gap between the heater pipe and the heat transfer member contact surface, and at the same time, the heater pipe is pressurized and fixed to the heat transfer member. There is one in composition.

According to the above configuration, the fixing of the heat transfer member and the heater pipe is only performed by caulking after inserting the heater pipe into the heat transfer member, and high injection molding during the heat transfer member injection molding, as in the conventional case of covering the entire heater pipe with the heat transfer member. The pressure does not deform the heater pipe, it is easy to manufacture and the yield of the material is very good.

On the other hand, it is not necessary to process the outer circumference of the heater pipe and the inner circumference of the heat transfer member in a circular shape as in the prior art in which the upper part of the heater pipe is fixed by screws with a fixing member. In addition, by pressurizing the contact surface between the heat transfer member and the heater pipe, the heater pipe is deformed to adhere closely to the semi-cylindrical surface of the heat transfer member, so that the heater pipe is tight enough to be fixedly attached, and there is almost no air layer. .

1 is an external view of a dishwasher.

2 is a longitudinal cross-sectional view of the dishwasher.

Figure 3 (a) is a plan view showing the configuration of a heater of a conventional dish washing machine, (b) is a front view of (a).

Figure 4 (a) is a plan view showing the configuration of a heater of a dish washing machine for a conventional method, (b) is a front view of (a).

Fig. 5A is a plan view showing the configuration of the heater of the dish washing machine according to the present embodiment, (b) is a front view of (a), and (c) is indicated by a symbol B in (a) and (b). Detailed view of the caulking part.

<Explanation of symbols for the main parts of the drawings>

12: heater

13: heater pipe

23: heat transfer member

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is an external view of the dishwasher, Fig. 2 is a longitudinal sectional view of the dishwasher, Fig. 3 (a) is a plan view showing the configuration of the heater of the dish washing machine according to the conventional method, (b) is a front view of (a) 4A is a plan view showing the structure of a heater of a dish washing machine according to a conventional method, (B) is a front view of (a), and FIG. 5 (A) is a heater of the dish washing machine according to the present embodiment. (B) is the front view of (a), (c) is the detail view of the caulking part shown by the code | symbol B in (a) and (b).

In Fig. 1 and Fig. 2, reference numeral 1 denotes a dishwasher generically, and the dishwasher 1 has a box-shaped outer frame 2. In the outer frame 2, the dish storage tank 3 is arrange | positioned, The door 4 is provided in the front opening part. The step part 3a is provided in the lower part of the side wall of the tableware storage tank 3, and the lower basket 5 for tableware storage is detachably arrange | positioned at this step part 3a.

The rail 6 which moves back and forth is attached to the upper side wall of the dish storage tank 3, and this upper basket 7 for storing a dish is inserted by inserting the upper basket 7 for storing a dish into the rail 6; We can put in and out freely.

The feed pump 8 is arrange | positioned below the dish storage tank 3, and has the feed pump motor 9. The lower arm nozzle 10 which rotates with a center part as a support point is arrange | positioned directly under the lower basket 5 for dish storage, and the several small hole 10a is provided in the upper surface of the lower arm nozzle 10. As shown in FIG. The venturi tube 11b which transfers the washing water supplied by the water supply pump 8 to the upper arm nozzle 11 is arrange | positioned in the lower basket for dish storage.

In addition, an upper arm nozzle 11 that rotates with the center portion as a support point is disposed directly below the upper basket 7 for storing the dishes, and a plurality of small holes 11a are provided on the upper surface of the upper arm nozzle 11. This is provided. The exhaust duct 15 is arrange | positioned above the dish storage tank 3, and the exhaust duct 15 is connected to the exhaust port 16. As shown in FIG. The control panel 17 is arrange | positioned above the door 4, and the water supply solenoid valve 14 is arrange | positioned at the back surface of the dish container 3. The drain pump 18 shown in FIG. 2 is arrange | positioned beside the said water supply pump 8 below the dish storage tank 3.

The washing water circulation duct 24 is connected to the water storage unit 21 disposed at the bottom of the dish storage tank, and the heater pipe 13 made of copper is further connected to the other side of the washing water circulation duct 24. The washing water circulation duct 19 is connected to the feed water pump 8 from the pipe 13. The heater pipe 13 is provided with an aluminum die cast heat transfer member 23 which is integrally inserted with the heater 12. As shown in Fig. 5, the heat transfer member 23 has a semi-cylindrical shape having a diameter substantially the same as that of the heater pipe. After the heater pipe 13 is inserted, the heat transfer member 23 compresses the upper surface of the heater pipe 13 from the A direction. After the lower surface of the heater pipe 13 is brought into close contact with the semi-cylindrical surface of the heat transfer member 23, the portion B is caulked to fix the heater pipe 13 and the heat transfer member 23.

Here, the washing | cleaning, the water rinse, the warm water rinse, and the drying operation | movement of the dishwasher 1 which consist of the said structure are demonstrated.

First, the cleaning operation is energized through the water supply solenoid valve 14, the washing water is supplied to the dish storage tank 3, and the pump motor 9 is energized while the heater 12 is energized. 20 is rotated, water is sucked in from the water reservoir 21 disposed at the bottom of the dish storage tank 3, and is heated from the heater in the heater pipe 13 through the washing water circulation duct 24. After supplying the heat of the heat transfer member 23 to the water and heating the water, the inside of the lower arm nozzle 10 and the venturi tube from the washing water circulation duct 19, the water supply pump 8, and the pump protrusion 22 are provided. Pressure is supplied to 11b and supplied from the venturi tube 11b into the upper arm nozzle 11. Then, pressure water is directly injected from the small hole 10a of the lower arm nozzle 10 to the tableware in the lower basket 5 for storing the tableware, and the tableware is stored from the small hole 11a of the upper arm nozzle 11. By directly spraying pressure water on the dishes in the upper basket 7, the dirt adhering to them is peeled off and dispersed. At this time, the pressure water from the lower arm nozzle 10 and the upper arm nozzle 11 is sprayed over the entire area in the dish storage tank. If the cleaning has been performed for a predetermined time, the power supply of the pump motor 9 and the heater 12 is stopped to terminate the cleaning operation, and the drain pump 18 is energized to discharge the washing water in the dish storage tank 3 out of the washing machine. .

Next, the rinsing operation is repeated by the same operation as the cleaning operation. At this time, energization of the heater 12 is performed only during the hot water rinsing operation, and not during the other rinsing operation.

Finally, the drying operation is energized by a blower unit (not shown) to rotate the blower fan, and ventilate into the dishwasher 3 via a blower duct, a heater, and a blower passage disposed below the dishwasher 3. do. In addition, at this time, the heater turns on or off the electricity for a predetermined time and changes the cold air into the warm air. The warm air causes the water droplets and the remaining water to adhere to the dish storage tank 3, or the dish storage. The water droplets attached to the utensils stored in the lower basket 5 or the upper basket 7 are converted to steam and discharged out of the washing machine through the exhaust duct 15 and the exhaust port 16. Even if it is not necessary, the drying process by this heater is abbreviate | omitted to the model which only needs to complete washing of a tableware, and can reduce product cost by cold air drying.

And if the drying operation | movement was performed for a fixed time, operation | movement of the dishwasher 1 is complete | finished.

According to the present invention, the fixing of the heat transfer member and the heater pipe is only performed by caulking after inserting the heater pipe into the heat transfer member, and high injection pressure during the injection molding of the heat transfer member as in the conventional case of covering the entire heater pipe with the heat transfer member. It is easy to manufacture without deforming a heater pipe, and the yield of material is also very good.

On the other hand, it is not necessary to process the outer periphery of a heater pipe and the inner periphery of a heat-transfer member in a round shape like the conventional thing which fixes the upper part of a heater pipe with a fixing member with a screw. In addition, by pressurizing the contact surface between the heat transfer member and the heater pipe, the heater pipe is deformed to adhere closely to the semi-cylindrical surface of the heat transfer member, so that the heater pipe is tight enough to be fixedly attached and there is almost no air layer. It is excellent in all aspects of manufacturing workability and economical efficiency compared with the prior art.

Claims (2)

The tableware container, the tableware container are covered from the outside, and the main body constituting the outer shell, the washing pump serving as the washing water supply means for cleaning the tableware, and the washing water provided in the washing water circulation path outside the tableware container are replaced with hot water. A dishwasher having a heater, a heating member integrally formed with the heater, and a drain pump for discharging washing water out of the washer, The washing water circulation path of the heater section is made into a pipe shape, and the heat transfer member covering the periphery of the heater pipe is made into a semi-cylindrical shape having a shape substantially equal to the diameter of the heater pipe, and the fixing of the heater pipe and the heat transfer member is carried out. Dishwasher characterized in that the caulking structure. The tableware container, the tableware container are covered from the outside, and the main body constituting the outer shell, the washing pump serving as the washing water supply means for washing the tableware, and the washing water provided in the washing water circulation path outside the tableware container are replaced with hot water. In the dishwasher which has a heater, the heater which blows in external air and changes it into the warm air for dish drying, the heating member integrally comprised with the heater which changes washing water into hot water, and the drainage pump which discharges washing water out of a washing machine, The washing water circulation path of the heater section is made into a pipe shape, and the heat transfer member covering the circumference of the heater pipe is made into a semi-cylindrical shape having a shape substantially equal to the diameter of the heater pipe, and the fixing of the heater pipe and the heat transfer member is performed by A dishwasher comprising a caulking structure.