JP2006326022A - Dish washer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer, decreasing the convection of washing water to efficiently raise the water temperature in a washing process, eliminating unevenness in steaming by steam before it enters the washing process and adhesion of mist to dishes in the mist process to improve steaming to the dishes and adhesion of mist, thereby heightening the washing efficiency. <P>SOLUTION: A weir for restraining the convection of water in the washing vessel is provided in a middle position between a heater for heating washing water and a drain port, whereby boiling can be efficiently performed quickly to improve steaming to stains and adhesion of mist so that the dishes can be washed and finished well. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dishwasher for washing dishes by spraying washing water from a washing nozzle toward the dishes.

  Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 8, the cleaning tank 1 is provided with a mist generating device 2 for generating a mist by making the cleaning liquid into fine particles, a heater 3 and a cleaning nozzle 5 for injecting cleaning water. Tableware basket 7 that accommodates 6 is arranged. A heater cover 4 is provided above the heater 3 to prevent small tableware from falling on the heater 3. The washing water in the washing tank 1 is warmed by the heater 3, sucked from the drain port 10 through the residue filter 9 by the pump 8, and pumped to the washing nozzle 5. The tableware 6 disposed and accommodated in the tableware basket 7 is cleaned by the cleaning water sprayed from the cleaning nozzle 5 (see, for example, Patent Document 1).
JP 2001-61756 A

  However, in such a conventional dishwasher, in the washing process, the washing water on the heater 3 is convected to the drain port 10 toward the front end side of the heater cover 4, and the boiled washing water is drained. There was a problem that the cold wash water from the drain port 10 flows into the heater 10 and flows into the heater 3 side, which takes time for boiling water.

  In addition, it takes time to fill the cleaning tank 1 with the mist generated from the mist generating device 2 in the mist process before entering the cleaning process. There was a problem of variation.

  The present invention solves the above-mentioned conventional problems, and can reduce the convection of the washing water on the heater 3 and increase the water temperature efficiently and at the same time, and improves the steaming and mist adhesion to dirt on the tableware. The object is to provide a dishwasher with improved cleaning efficiency.

  In order to achieve the above object, the present invention is provided with a heater at the bottom of the cleaning tank, and provided with a weir for suppressing convection of water in the cleaning tank at an intermediate position between the heater and the drain port.

  This reduces the convection of the washing water on the heater so that boiling water can raise the water temperature efficiently and quickly, and it can be used to efficiently evaporate and clean mists on the dishes. It is.

  ADVANTAGE OF THE INVENTION The dishwasher of this invention can implement | achieve the dishwasher which improved the washability of the tableware accommodated in a tableware basket, and improved cleaning efficiency.

  1st invention, the washing tank which stores tableware, the washing nozzle which is provided in the inside of the washing tank and injects washing water to the tableware, the heater which is provided in the bottom of the washing tank and heats washing water, A dam that suppresses convection of water in the cleaning tank at a middle position between the heater and the drain port, and includes a drain port provided at the bottom of the cleaning tank and a pump that sends the cleaning water from the drain port to the cleaning nozzle. As a result, it is possible to efficiently heat the hot water, and to steam the dirt attached to the tableware and attach the mist in an early time, thereby improving the cleaning efficiency.

  According to a second aspect of the present invention, in the first aspect of the present invention, the weir is arranged on the downstream side where the convection of the cleaning water occurs with respect to the heater.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the weir is positioned at a height higher than the bottom of the cleaning tank, so that the supply of water to the pump during cleaning and drainage is not hindered. Washing water can be jetted well from the washing nozzle during washing, and water remaining in the washing tank under the heater can be reduced even during drainage. Moreover, clogging of the residue at the weir can be prevented.

  According to a fourth aspect of the present invention, in the first to third aspects of the present invention, since the weir is configured to be removable, dirt and the like on the weir can be easily cleaned.

  According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, a heater cover is provided above the heater, and a weir is provided at an end of the heater cover on the drain outlet side, so that water convection is more efficiently performed. In addition to deterrence, it is possible to prevent the weir from shifting or coming off. Moreover, since it can be removed together with the heater cover, cleaning of dirt and the like adhering to the weir can be performed more easily.

  According to a sixth aspect of the present invention, in the first to fourth aspects of the present invention, the weir is erected from the bottom of the cleaning tank, so that it can be integrated with the bottom of the cleaning tank by resin molding, can be configured at low cost, and Therefore, the mold structure can be simplified.

  According to a seventh aspect of the present invention, in the first to sixth aspects of the present invention, by providing a mist generating device for generating mist by making cleaning water into fine particles in front of the heater in the cleaning tank, it is possible to efficiently perform boiling water. Since the temperature rise of the water temperature can be accelerated, the amount of mist generated can be increased, and the time required for filling the mist inside the washing tank can be shortened by the generation of the rising air flow accompanying the temperature rise of the water temperature. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The basic configuration of the dishwasher is the same as that of the conventional example shown in FIG. 8, and the same components are denoted by the same reference numerals and description thereof is omitted. Further, the present invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a dishwasher according to Embodiment 1 of the present invention, and FIGS. 2 and 3 are enlarged views of essential parts of the dishwasher.

  In FIG. 1, a pair of left and right rotatable cleaning nozzles 5 are provided at the bottom of the cleaning tank 1, and a heater 3 that heats the cleaning water and warms it at a substantially central portion in the left-right direction in front of the bottom. Is provided. A residue filter 9 is provided on the right side of the heater 3 in front of the cleaning nozzle 5 so as to cover the drain port 10. And the tableware basket 7 which accommodates the tableware 6 is arrange | positioned above the pair of right and left washing nozzles 5. A heater cover 4 is provided above the heater 3 in order to prevent small tableware from falling on the heater 3.

  When a desired cleaning course is selected using an operation panel (not shown) provided in front of the dishwasher and the start button is pressed, the cleaning water in the cleaning tank 1 is warmed by the heater 3 in the cleaning process, and the pump 8 The tableware 6 placed and accommodated in the tableware basket 7 is washed by the washing water sucked from the drainage port 10 through the residue filter 9 and pumped to the washing nozzle 5 and sprayed vigorously from the washing nozzle 5. ing.

  Further, a mist generating device 2 for generating a mist by making the cleaning liquid into fine particles inside the cleaning tank 1 is disposed at the bottom of the cleaning tank 1 and slightly above the heater 3. The mist of the cleaning liquid generated by the mist generating device 2 is mainly used in the mist process performed prior to the cleaning process. It penetrates into the dirt and raises the dirt from the surface of the tableware 6 to facilitate washing in the subsequent washing process.

  As shown in FIG. 2, the heater cover 4 is configured by combining wires, and the downstream side where the cleaning water convects, that is, the tip closer to the residue filter 9 and the drainage port 10 is bent toward the bottom of the cleaning tank 1. is there. A stainless steel plate is fixed to a portion of the heater cover 4 bent in the direction of the bottom of the cleaning tank 1 by means such as adhesion to form a weir 11 that suppresses convection of the cleaning water.

  Next, the operation and action of the dishwasher configured as described above will be described.

  In the case of a configuration without a weir as in the prior art, in the cleaning process, the cleaning water on the heater 3 was convected to the drain port 10 toward the tip of the heater cover 4 and boiled by boiling water. The washing water flows into the drain port 10 and the cold washing water in the drain port 10 flows into the heater 3 side, and it takes time for boiling water. In the present embodiment of the present invention, the heater cover 4 By installing the weir 11, the convection of the washing water can be eliminated, the water on the heater 3 can be boiled at once, and steam can be quickly discharged to increase the steaming effect.

  Further, in the mist process, the mist generated on the heater 3 is generated by the mist generator 2 so that the mist can be quickly raised by the generation of the rising air current due to the rapid boiling of water, so that the stains attached to the tableware 6 disposed above. In addition to increasing the amount of mist adhering to the basin, it is possible to quickly fill the entire washing tank 1 with mist and increase the amount of mist adhering to the entire dirt on the tableware 6 placed in the tableware basket 7.

(Embodiment 2)
Since the basic configuration and operation of the dishwasher are the same as those in the first embodiment, detailed description thereof is omitted, and only differences from the first embodiment will be described.

  As shown in FIG. 3, the weir 11 is attached to an intermediate position between the heater 3 and the drain outlet 10 at the bottom of the cleaning tank 1. A recess 1 a is provided at the bottom of the cleaning tank 1, and a weir 11 made of a stainless steel plate is inserted into the recess 1 a so that the weir 11 is erected from the bottom of the cleaning tank 1.

  In the present embodiment, since the weir 11 is configured to be attached to the bottom of the cleaning tank 1, even in a configuration without the heater cover 4 or a configuration in which the weir 11 cannot be attached to the heater cover 4, The same effect as in the first mode can be obtained.

  In the present embodiment, the weir is configured as a separate part from the cleaning tank, but the same effect can be obtained even if a part of the bottom of the cleaning tank protrudes upward and is configured integrally with the cleaning tank.

(Embodiment 3)
4 and 5 are enlarged views of the main part of the dishwasher according to the third embodiment of the present invention, and FIGS. 6 and 7 show the state where the heater cover or weir of the dishwasher according to the third embodiment of the present invention is removed, respectively. It is a principal part enlarged view shown. Since the basic configuration and operation of the dishwasher are the same as those in the first or second embodiment, detailed description thereof will be omitted, and only differences from the first or second embodiment will be described.

  4 and 5, the weir 11 is mounted at a position higher than the bottom of the cleaning tank 1 to provide a gap 12 between the bottom of the cleaning tank 1 and the weir 11 so that water is supplied to the pump in the cleaning process or the draining process. This is a configuration that can prevent the clogging of the residue at the weir 11 without hindering the supply of water.

  In FIG. 4, the weir 11 is bonded to the downstream side surface of the heater cover 4 where the cleaning water convects, as in the first embodiment shown in FIG. The difference from the first embodiment is that the lower side of the weir 11 is positioned higher than the bottom of the cleaning tank 1 and a gap 12 is formed between the lower end of the weir 11 and the bottom of the cleaning tank 1. It is a point.

  Further, in FIG. 5, the weir 11 is formed in a substantially L shape, and, similarly to the second embodiment shown in FIG. 3, one end 11a thereof is inserted into the recess 1a formed in the cleaning tank 1, and the cleaning tank 1 is erected from the bottom.

  4 and 5, the gap 12 is formed between the lower end of the weir 11 and the bottom of the cleaning tank 1, so that water can be smoothly supplied to the pump during cleaning and drainage. The cleaning water can be jetted well from the cleaning nozzle at the time of cleaning, and the remaining water in the cleaning tank under the heater can be reduced even at the time of draining. It is also possible to prevent clogging of residues at the weir.

  In the configuration shown in FIG. 4, the weir 11 can be attached and detached together with the heater cover 4 as shown in FIG. 6. In the case of the configuration shown in FIG. 5, as shown in FIG. 7, the weir 11 configured as a separate part from the heater cover 4 is configured to be detachable. In any of the above configurations, the weir 11 can be easily attached and detached from the bottom of the cleaning tank 1, so that the dirt attached to the weir 11 can be easily cleaned.

  As described above, the dishwasher according to the present invention can quickly heat the hot water before washing, and can effectively steam and adhere mist, so that the dishwasher using the heater for hot water is used. Etc. are useful.

The longitudinal cross-sectional view of the dishwasher of Embodiment 1 of this invention The principal part enlarged view of the dishwasher of Embodiment 1 of this invention The principal part enlarged view of the dishwasher of Embodiment 2 of this invention The principal part enlarged view of the dishwasher of Embodiment 3 of this invention The principal part enlarged view of the dishwasher of Embodiment 3 of this invention The principal part enlarged view which shows the state which removed the heater cover of the dishwasher of Embodiment 3 of this invention. The principal part enlarged view which shows the state which removed the weir of the dishwasher of Embodiment 3 of this invention Vertical section of a conventional dishwasher

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing tank 2 Mist generator 3 Heater 4 Heater cover 5 Washing nozzle 6 Tableware 7 Tableware basket 8 Washing pump (pump)
9 Remaining filter 10 Drain port 11 Weir 12 Air gap

Claims (7)

A cleaning tank for storing dishes, a cleaning nozzle provided inside the cleaning tank for injecting cleaning water to the dishes, a heater provided at the bottom of the cleaning tank for heating the cleaning water, and provided at the bottom of the cleaning tank A dishwasher comprising: a drain port; and a pump for sending cleaning water from the drain port to the cleaning nozzle, and a weir for suppressing convection of water in the cleaning tank at an intermediate position between the heater and the drain port. The dishwasher according to claim 1, wherein the weir is arranged downstream of the heater where convection of the washing water occurs. The dishwasher according to claim 1 or 2, wherein the weir is positioned at a higher position than the bottom of the washing tank. The dishwasher according to any one of claims 1 to 3, wherein the weir is configured to be removable. The dishwasher according to any one of claims 1 to 4, wherein a heater cover is provided above the heater, and a weir is provided at an end of the heater cover on a drain outlet side. The dishwasher according to any one of claims 1 to 4, wherein the weir is erected from the bottom of the washing tank. The dishwasher according to any one of claims 1 to 6, further comprising a mist generating device for generating mist by making cleaning water into fine particles in front of the heater in the cleaning tank.

Images