JP5938579B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher that is installed in a kitchen or the like and performs automatic cleaning and drying of an object to be cleaned.

  The structure of the dishwasher by a prior art is demonstrated. Conventionally, this type of dishwasher has been configured as shown in FIGS. Hereinafter, the configuration will be described. As shown in FIG. 5 to FIG. 7, the dishwasher 1 is provided with a washing tub 2 inside, a drainage port 3 is provided at the bottom of the washing tub 2, and a pump chamber communicating with the drainage port 3 is provided. A cleaning pump 5 driven by the cleaning motor 4 is provided, and the cleaning water is circulated through the cleaning tank 2 by the cleaning pump 5. In this circulation, the washing water is sucked into the washing pump 5 from the drain port 3 and is supplied from the washing pump 5 to the washing nozzle 6 (6a and 6b) disposed rotatably at the inner bottom portion of the washing tank 2. It is sprayed from the nozzle 6 toward the tableware 7, and after cleaning the tableware 7, it returns to the drain port 3 again.

  A cleaning water heater 8 is disposed between the cleaning nozzle 6 and the bottom of the cleaning tank 2. The control means 9 detects that the washing water has reached a predetermined temperature by the washing water temperature detection means 10 and stops energization of the heater 8. In addition, the tableware basket is configured so that the tableware 7 is arranged in an orderly manner above the cleaning nozzle 6 so that cleaning water can be effectively sprayed onto the tableware 7 and the tableware 7 can be cleaned efficiently. 11 is installed.

  Moreover, the washing tank 2 is opened forward, and a lid 12 that can be opened and closed forward is attached to the front surface thereof. The drain pump 13 is configured to suck the cleaning water from the drain port 3 and discharge the cleaning water to the outside through the drain hose 14. The cleaning water stored in the cleaning tank 2 is supplied from the water supply hose 15. When the water level detection means 16 communicating with the cleaning tank 2 detects that the cleaning water has been supplied to a predetermined water level, the control means 9 closes the water supply valve 17 and stops the supply of the cleaning water.

  The drying fan 18 takes air outside the cleaning tank 2 into the cleaning tank 2, transfers the heat generated by the heater 8 to the tableware 7, evaporates the cleaning water adhering to the surface of the tableware 7, and the lid 12. It discharges out of the washing tank 2 from the exhaust port 19 provided in the table, and the tableware 7 is configured to dry. A heater cover 20 made of sheet metal and provided with a plurality of holes is provided substantially horizontally above the heater 8 to prevent the user from accidentally touching the high-temperature heater 8 ( For example, see Patent Document 1).

Japanese Patent Laid-Open No. 11-346977

However, in the conventional dishwasher having the above-described configuration, the heater cover 20 has a top surface that is flat on both the top surface and the back surface, and is installed substantially horizontally. Therefore, when the drying operation is started after the cleaning operation, the heater cover 20 is provided. Innumerable water droplets remain on the top surface and the back surface of the top surface of the heater, and the heat for drying the dishes 7 from the heater 8 is taken away by evaporation of the water droplets remaining on the top surface and the back surface of the heater cover 20. As a result, the drying efficiency is reduced, and power is consumed more than necessary during the drying operation. Some conventional dishwashers have a heater 8 arranged parallel to the inclination of the bottom surface of the washing tub 2 and arranged in parallel to the heater 8 so that the heater cover 20 is inclined relative to the horizontal. Since it could not be secured sufficiently, a large amount of water droplets remained on the top surface and the back surface of the top surface of the heater cover 20 and had the same problem.

  The present invention solves the above-described conventional problems, and by suppressing the amount of water droplets remaining on the top surface and the back surface of the top surface of the heater cover, the drying efficiency of the dishes is improved, and more than necessary during the drying operation. The object is to provide a dishwasher that can be operated with reduced power consumption.

In order to solve the above-described conventional problems, the dishwasher of the present invention includes a heater cover that covers a substantially upper portion of the heater (heating means) , the top surface is formed in a substantially rectangular shape, and a plurality of through holes and a plurality of inclined surfaces. The plurality of inclined surfaces have an inclination in the lateral direction, and are configured such that the lowest point of the inclination is located directly above the heating means, and the top surface of the heater cover is The water droplets of the cleaning water remaining on the upper surface and the rear surface flow along the inclined surface and are dropped from the through hole to the lower side of the heater cover, and are dropped from the lowest point onto the heating means. Since water droplets drip along the inclined surface, reducing the amount of water droplets remaining on the top and back surfaces of the heater cover improves the drying efficiency of the dishes and consumes more power than necessary during the drying operation. Driving with reduced pressure is possible It is possible to provide a dishwasher.

  According to the present invention, the amount of water droplets remaining on the top surface and the back surface of the top surface of the heater cover is reduced, so that the heater cover out of the heat for drying tableware generated from the heater at the start of the drying operation after the cleaning operation. The amount of water droplets remaining on the top and back surfaces of the top surface can be reduced by evaporation, improving the drying efficiency of tableware, and enabling operation with less power consumption than necessary during drying operation. A dishwasher can be provided.

Side sectional view of the dishwasher according to Embodiment 1 of the present invention. Front sectional view of the dishwasher Plan sectional view of the dishwasher A perspective view showing a heater cover of the dishwasher Side view of a conventional dishwasher Front sectional view of the dishwasher Plan sectional view of the dishwasher

According to a first aspect of the present invention, there is provided a cleaning tank for storing an object to be cleaned, a heating means for heating cleaning water and air supplied into the cleaning tank, a blowing means for blowing air to the heating means, and a heating means A heater cover that covers substantially the top, and the heater cover is formed with a substantially rectangular top surface and provided with a plurality of through holes and a plurality of inclined surfaces, and the plurality of inclined surfaces are inclined in the short direction. The lowermost point of the slope is positioned directly above the heating means, and water droplets of cleaning water remaining on the top and back surfaces of the top surface of the heater cover are along the sloped surface. The dishwasher is configured to flow from the through hole to the lower side of the heater cover and to drop on the heating means from the lowest point . As a result, since water droplets drip along the inclined surface, the amount of water droplets remaining on the top surface and the back surface of the top surface of the heater cover can be kept low, improving the drying efficiency of the dishes, and more power than necessary during the drying operation. A dishwasher that can be operated with reduced consumption can be provided.

In addition , during cleaning operation, water droplets on the top and back surfaces of the heater cover can drip onto the heating means and promote washing away foreign substances such as leftovers adhering to the heating means. Occurrence of problems such as the generation of a strange odor during the drying operation can be suppressed.

Furthermore , since the inclination is provided in the short direction, the inclination angle of the inclined surface provided on the top surface of the heater cover is more than that in the case where the inclination is provided in the longitudinal direction as well as the conventional flat surface. The effect of dripping water droplets on the heating means or the bottom of the washing tank can be further increased.

According to a second aspect of the present invention, in the first aspect , the plurality of through holes are dishwashers formed so as to be elongated in a short direction, and water drops remaining on the heater cover are inclined in the short direction. When flowing along, it is possible to drop more water droplets on the heating means or on the bottom of the cleaning tank as compared with the case where the through hole is long in the longitudinal direction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
Hereinafter, the dishwasher in the 1st Embodiment of this invention is demonstrated. In addition, the same component as the dishwasher of the prior art example demonstrated with reference to FIGS. 5-7 is attached | subjected the same code | symbol, and description is abbreviate | omitted. The present invention is not limited to the present embodiment.

  As shown in FIGS. 1 to 3, the dishwasher 21 of the present embodiment is provided with a tableware basket 11 in a washing tank 22 provided therein, and the tableware 7 accommodated in the tableware basket 11 is washed. For this purpose, a rotatable cleaning nozzle 6 (6a and 6b) is provided, and cleaning water is sprayed onto the dishes 7 for cleaning.

  Between the cleaning nozzle 6 and the bottom of the cleaning tank 22, a heater 23 (heating means) for heating the cleaning water, which has a substantially circular cross section and is formed in a U shape, is disposed substantially horizontally. The control means 9 detects that the washing water has reached a predetermined temperature by the washing water temperature detection means 10, and stops energization of the heater 23.

  The drying fan 18 (air blowing means) takes the air outside the cleaning tank 22 into the cleaning tank 22, transfers the heat generated by the heater 23 to the dishes 7, and evaporates the cleaning water adhering to the surface of the dishes 7. The table 7 is configured to be discharged out of the washing tank 22 through the exhaust port 19 provided in the lid 12 and to dry the tableware 7.

  A heater cover 24 made of sheet metal and having a plurality of holes is provided substantially horizontally above the heater 23 so as to prevent the user from touching the high-temperature heater 23 by mistake.

  Hereinafter, the heater cover 24 will be described with reference to FIG. In FIG. 4, the heater cover 24 is made of sheet metal, and is formed by bending or punching a plate material such as stainless steel. The heater cover 24 has a substantially box shape in which the periphery of the substantially rectangular top surface 24a is bent downward.

  The top surface 24 a of the heater cover 24 is provided with a plurality of inclined surfaces 24 b that are inclined in the short direction of the heater cover 24. Each inclined surface 24b is provided with a plurality of through-holes 24c that are elongated in the lateral direction, that is, in the inclined direction. In this way, the water droplets adhering to the top surface and the back surface of the top surface 24a of the heater cover 24 during the cleaning process and the rinsing process are configured to easily drop on the heater 23 and the bottom of the cleaning tank 22. A part of the elongated through hole 24c is positioned such that its end is close to the lowest point 24d of the inclined surface 24b.

  The heater cover 24 is attached to the bottom of the cleaning tank 22 so as to cover the heater 23 from above. At this time, as shown in FIG. 3, the lowest slope of the inclined surface 24b provided on the top surface 24a of the heater cover 24 is provided. The point 24d is configured to be located immediately above the heater 23.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated. The basic operation of the dishwasher using the washing pump 5, the washing nozzle 6 (6a and 6b), the heater 23 and the like is the same as that of the conventional dishwasher. Hereinafter, operations and actions related to the characteristic configuration of the present invention, which are different from the conventional dishwasher, will be described in detail.

  When the cleaning process and the rinsing process are completed and the drying process is started, the control means 9 energizes the drying fan 18, and the drying air taken into the cleaning tank 22 is provided on the inner wall of the cleaning tank 22. The tableware 7 is dried by transferring heat generated in the heater 23 which is guided from 25 to the heater 23 and energized to the tableware 7.

  Here, if water droplets remain on the upper surface and the back surface of the top surface 24a of the heater cover 24 provided above the heater 23, the heat generated from the heater 23 is taken away by evaporation of the water droplets, and the tableware 7 Although drying efficiency is reduced and power is consumed more than necessary, according to the dishwasher according to the present invention, the top surface 24a of the heater cover 24 is provided with a plurality of through holes 24c and the heater cover 24. By providing a plurality of inclined surfaces 24b having an inclination in the short direction, the inclination angle can be increased as compared with the case of providing an inclination in the longitudinal direction as well as a flat surface as in the conventional example. Therefore, water drops remaining on the top surface and the back surface of the top surface 24 a of the heater cover 24 can be more easily dropped onto the heater 23 and the bottom of the cleaning tank 22.

  Further, since the lowest point 24d of the inclined surface 24b provided on the top surface 24a of the heater cover 24 is configured to be directly above the heater 23, the cleaning water that has flowed along the inclination is on the heater 23. The water droplets on the top surface and the back surface of the top surface 24a of the heater cover 24 are dripped onto the heater 23 during the cleaning operation, thereby facilitating washing away foreign substances such as leftovers attached to the heater 23. Generation | occurrence | production of malfunctions, such as a strange odor generate | occur | producing during a drying operation, can be suppressed when foreign materials, such as vegetables, adhere.

  Further, since the plurality of through holes 24c provided in the top surface 24a of the heater cover 24 are formed to be elongated along the inclination in the short direction of the heater cover 24, water droplets remaining between the holes are also prevented. The water drops remaining on the top surface 24a of the heater cover 24 can easily flow along the slope, and can be dripped more on the heater 23 and the bottom of the cleaning tank 22.

  In the present embodiment, the heater cover 24 is made of sheet metal, but may be formed by resin molding having heat resistance. Further, although the heater 23 is U-shaped, it may be W-shaped by extending the center of the bent portion of the U-shape to the vicinity of both ends of the heater 23.

  As described above, the dishwasher according to the present invention improves the drying efficiency of the dishes by reducing the amount of water droplets remaining on the top and back surfaces of the top surface of the heater cover after the washing and rinsing operation. Therefore, the present invention is useful as a dishwasher or the like that dries washing water by spraying washing water on the dishes and then drying by the heat generated by the heater.

5 Cleaning pump 6, 6a, 6b Cleaning nozzle 7 Tableware (object to be cleaned)
DESCRIPTION OF SYMBOLS 9 Control means 10 Washing water temperature detection means 11 Tableware basket 12 Cover 13 Drain pump 16 Water level detection means 17 Water supply valve 18 Blower fan for drying (blower means)
21 Dishwasher 22 Washing tank 23 Heater (heating means)
24 heater cover 24a top surface 24b inclined surface 24c through hole 24d lowest point of inclination

Claims (2)

A cleaning tank for storing an object to be cleaned, a heating means for heating cleaning water and air supplied into the cleaning tank, a blowing means for blowing air to the heating means, and a heater cover covering substantially above the heating means The heater cover has a top surface formed in a substantially rectangular shape and is provided with a plurality of through holes and a plurality of inclined surfaces, and the plurality of inclined surfaces have an inclination in a lateral direction and the inclination The lowermost point of the heater is positioned directly above the heating means, and water droplets of cleaning water remaining on the top and back surfaces of the top surface of the heater cover flow along the inclined surface, and the through hole The dishwasher is configured to drop from below the heater cover and drop onto the heating means from the lowest point . The dishwasher according to claim 1 , wherein the plurality of through holes are formed to be long in a short direction.