JP4501774B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher having a so-called pre-cleaning process in which dish soil is swollen with atomized washing water.

Conventionally, in this type of dishwasher, in order to ensure the removal of dirt attached to tableware etc., the dirt attached to it is swollen with mist-like washing water (preliminary washing), and then There has been considered one that cleans (mainly cleans) the dirt by using mechanical force by washing water injection, chemical force by detergent, or the like (for example, see Patent Document 1). In order to accurately spray the atomized cleaning water on the tableware, a fan-type stirring means is provided in the cleaning tank or the like.
JP 2000-189375 A

  However, the conventional dishwasher has a problem that detergent particles or dirt particles are easily deposited and deposited on the atomizing means, resulting in a decrease in the stirring effect or failure.

  An object of the present invention is to solve the conventional problems, and to keep the stirring device in a good state at all times, to improve the precleanability with the atomized cleaning water, and to improve the efficiency of the cleaning itself. .

  In order to solve the above-described problems, a dishwasher according to the present invention contains an object to be cleaned such as tableware, a cleaning tank having an opening that is opened and closed by a lid, and cleaning water pressurized by a cleaning pump. A cleaning nozzle that sprays the cleaning area, a detergent atomizing device that supplies the sprayed detergent liquid to the cleaning area prior to spraying the cleaning water from the cleaning nozzle, and a detergent atomized by the detergent atomizing apparatus Stirring means for stirring the liquid, and the stirring means is configured to be washed with washing water.

  According to the present invention, it is possible to realize a dishwasher with greatly improved cleaning power.

  The first invention accommodates an object to be cleaned such as tableware and has a cleaning tank having an opening that is opened and closed by a lid, a cleaning nozzle for injecting cleaning water pressurized by a cleaning pump into a cleaning region, Prior to jetting of washing water from the washing nozzle, a detergent atomizing device for supplying atomized detergent liquid to a washing region, and a stirring means for stirring the detergent solution atomized by the detergent atomizing device are provided. The stirring means is configured to be washed with washing water. Therefore, the stirring means always maintains a good stirring function by washing with washing water.

  Specifically, the agitation means for washing with the washing water is provided with an agitation means in an area where the washing water sprayed by the washing nozzle is applied, or provided with an agitation means in the water supply path of the washing water to the washing tank. It is conceivable to wash the stirring means with flowing washing water.

  Furthermore, the agitation means is disposed in the water storage part of the washing tank, and the agitation means is disposed at a position higher than the water level of the water storage part in the preliminary washing process. In the process, it may be set below the water level of the water storage part, and may be washed by immersing in the water in the water storage part during the main cleaning process.

  And if this is operated at the time of washing | cleaning of a stirring means, washing | cleaning of a stirring means will be performed still more reliably.

(Embodiment 1)
1 to 3, the main body 1 of the dishwasher has a cleaning tank 4 in which an opening 3 that is opened and closed by a lid 2 is formed in the front. A water storage section 5 is formed below the cleaning tank 4, and the cleaning water supplied to the water storage section 5 is pumped up through the pump 6 and is jetted from the cleaning nozzle 7 to the cleaning tank 4. ing.

  The cleaning water sprayed from the cleaning nozzle 7 cleans an object to be cleaned 8 such as tableware stored in the cleaning tank 4, returns to the water storage unit 5, is filtered by a filter (not shown), and reaches the pump 6 again. . The water reservoir 5 is provided with a heater 9 so that the washing water is maintained at a predetermined temperature. The object to be cleaned 8 is stored in a table basket 12 that can freely enter and exit the cleaning tank 4 via rollers 11 that roll on rails 10 fixed on both sides of the cleaning tank 4.

  A water supply path 13 is led to the cleaning tank 4, and water supply is controlled by a water supply valve 14. In addition, a drying air outlet 17 is provided on the upper rear wall of the cleaning tank 4 to blow the outside air taken into the air passage 16 through the fan 15 into the cleaning tank 4 in order to dry the object 8 after cleaning. In addition, an exhaust port 19 equipped with a shutter 18 is provided at the top.

  In the lower part of the washing tank 4, a partition wall 21 having a water flow opening 20 is temporarily separated from the water storage part 5, and a recess 23 in which an atomizing device 22 is installed is formed.

  The atomizing device 22 is provided so as to surround the atomizing portion 28 when enclosing the antifreeze liquid 27 leaving the gas phase portion 26 in the atomizing case 25 in which the ultrasonic oscillator 24 is disposed obliquely on the inner bottom. And a cover 30 in which an outlet 29 is formed.

  When the ultrasonic generator 24 is oscillated by energization, the vibrating wall 31 set obliquely in the atomizing case 25 vibrates and vibrates when the ultrasonic oscillator 24 is oscillated by energization. The washing water surface stored in the recess 23 of the part 5 rises as shown in FIG. 2 and generates washing water particles, that is, fog. This mist is sent out from the outlet 29 and reaches the object 8 to be cleaned housed in the cleaning tank 4.

  A part of the concave portion 23 is set in the detergent storage portion 32, and the detergent 33 put in before the operation of the dishwasher starts to accumulate here using the guide wall 34 as a guide. Therefore, in the present embodiment, the cleaning water particles that are fogged contain the detergent 33. Of course, the generation of mist that does not include the detergent 33 is also conceivable, and any mist that swells the dirt of the article 8 to be cleaned may be used.

  In this embodiment, the agitation means 35 is provided in order to diffuse the washing water particles generated by the atomizing device 22, that is, the mist into the washing tank 4 with certainty. In FIG. 1 and FIG. 3, the installation differs depending on whether it is installed vertically or horizontally, but the functions are the same. That is, the stirring means 35 includes a stirring body 36 having a fan structure and a motor 37 that rotationally drives the stirring body 36.

  In the vertical installation type of FIG. 1, the stirring means 35 is vertically arranged above the atomizing section 28 in the cover 30. In the horizontal installation type of FIG. Are arranged laterally on the side of the atomizing section 28, and in both cases, the stirring body 36 agitates the particles of the cleaning water generated in the atomizing device 22 and sends it to the cleaning tank 4.

  A series of actions and operations of the dishwasher of the present embodiment will be described based on the control of the control device 38 provided on the lid 2. First, the lid 2 is opened, the tableware basket 12 is pulled out, and the article 8 to be cleaned such as tableware is stored therein, and the detergent 33 is charged into the detergent reservoir 32 from a predetermined detergent charging unit. Thereafter, the lid body 2 is closed, and the object to be cleaned 8 is set in the cleaning tank 4 together with the tableware basket 12, and an operation start is instructed.

  Here, the control device 38 opens the water supply valve 14 and supplies water for cleaning from the water supply path 13 to the water storage unit 5. The water supply valve 14 is controlled so that the supply amount of the first stage cleaning water becomes the low water level B. The low water level B is where all or part of the atomizing section 28 in the atomizing device 22 is in the washing water, and the stirring means 35 is located on the washing water surface.

  Next, a preliminary cleaning process is started. In this preliminary cleaning step, the atomizer 22 and the stirring means 35 start to operate. However, the washing water (including the detergent component in the present embodiment) generated through the atomizing device 22 is diffused into the washing tank 4 while being stirred by the stirring means 35 and is reliably attached to the tableware or the like. As a result, the dirt of the article to be cleaned 8 is swollen by the particles of cleaning water, and is easily washed off.

  After the lapse of a predetermined time, the operation of the atomizer 22 and the stirring means 35 is stopped to finish the preliminary washing process, and then the water supply valve 14 is opened again and the washing water is poured until the water storage section 5 reaches the high water level A. Add. This high water level A is where the stirring body 36 of the stirring means 35 can be sufficiently submerged in the wash water.

  When the replenishment of the washing water is completed, the heater 9 is energized to warm the washing water, the operation of the pump 6 is started, and the main washing process is started. The warmed cleaning water in the water storage section 5 is ejected from the cleaning nozzle 7 by the action of the pump 6, and the object 8 to be cleaned is cleaned. Since this dirt has swollen in the previous preliminary washing step, it is surely washed off with washing water. When the main cleaning process is completed, a rinsing process for supplying and draining water several times is performed, and the process proceeds to the final drying process.

  In the drying process, the shutter 18 that has been closed is opened to open the exhaust port 19, and in this state, the fan 15 is driven to introduce outside air into the cleaning tank 4 through the air passage 16. On the way, the outside air comes into contact with the heater 9 and is warmed to promote drying and sterilization of the object 8 to be cleaned. The above is the operation control by the control device 38.

  By the way, in this embodiment, the stirring body 36 of the stirring means 35 is sufficiently submerged in the cleaning water during the main cleaning process. Moreover, at this time, the wash water is circulating and flowing. Therefore, the agitator 36 is surely washed with the flowing washing water, and adhesion of detergent components or scales is prevented in advance. As a result, the diffusion of the washing water mist during the preliminary washing step is improved, and the swelling action of the dirt is remarkably enhanced.

(Embodiment 2)
FIG. 4 shows an embodiment in which the lid 4 is equipped with stirring means 35 so that the stirring body 36 faces the cleaning tank 4. The position in the cleaning tank 4 is set in a region where the cleaning water ejected from the cleaning nozzle 7 reaches, that is, a cleaning region. In addition, the same code | symbol is attached | subjected about the structure which exhibits the same effect | action as Embodiment 1, and the thing of this Embodiment 1 is used for description.

  In the second embodiment, the action of the stirrer 36 is the same as that in the first embodiment, but the stirrer 36 is set in a region where the cleaning water ejected from the cleaning nozzle 7 reaches, that is, a cleaning region. Therefore, the cleaning is performed more effectively.

(Embodiment 3)
FIG. 5 shows that the stirrer 36 of the stirring means 35 is also washed by the flow of water supplied from the water supply path 13. That is, in this embodiment, the water supply path 13 is extended to the vicinity of the stirring body 36 so that the supply water directly contacts the stirring body 36. Therefore, the agitator 36 is reliably purified by the washing water flowing into the water reservoir 5 and the washing water stored in the water reservoir 5.

  In the third embodiment, the same reference numerals are given to configurations that exhibit the same effects as those in the first and second embodiments, and the descriptions of the first and second embodiments are used. In addition, the installation position of the stirring body is not limited to the first, second, and third embodiments, and may be any as long as the cleaning water mist is sufficiently stirred and is in contact with the cleaning water.

  Furthermore, in any of the embodiments, if the stirrer is driven to rotate for cleaning, the purification can be performed more effectively. In this case, the rotation of the stirring body is sufficient at a very low speed.

  In this way, since the agitation means can be purified and its function can be maintained well, the dirt is swelled reliably in the preliminary washing process, and as a result, the washing of dishes and the like by the main washing is performed efficiently and reliably. It can be made.

  As described above, the dishwasher according to the present invention is a dishwasher or the like in which a detergent solution is atomized in advance and sprayed onto an object to be cleaned such as tableware, and then normal cleaning is performed. Useful as.

Sectional drawing of the dishwasher in Embodiment 1 of this invention Cross-sectional view of the main part of the atomizer of the dishwasher Cross-sectional view of the main part of the atomizer unit with different specifications of the dishwasher Sectional drawing of the dishwasher in Embodiment 2 of this invention Sectional drawing of the dishwasher in Embodiment 3 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 4 Washing tank 5 Water storage part 6 Pump 7 Washing nozzle 8 To-be-washed object 13 Water supply path 22 Atomizer 35 Stirring means

Claims (5)

A cleaning tank that contains an object to be cleaned such as tableware and has an opening that is opened and closed by a lid, a cleaning nozzle that sprays cleaning water pressurized by a cleaning pump into a cleaning region, and cleaning from the cleaning nozzle Prior to water jetting, it comprises an atomizing device for supplying the atomized detergent liquid to the washing region, and an agitating means for agitating the detergent liquid atomized by the atomizing device, and the agitating means comprises washing water A dishwasher configured to be washed by. The dishwasher according to claim 1, wherein a stirring means is provided in a washing area of the washing water by the washing nozzle. 2. The dishwasher according to claim 1, wherein a stirring means is provided in a water supply path of the washing water to the washing tank, and the stirring means is washed with washing water flowing in the water supply path. The agitation means is disposed in the water storage part of the washing tank, and the agitation means is disposed at a position above the water level in the pre-washing process in which the atomized detergent liquid is supplied to the washing region. The dishwasher according to claim 1, wherein in the main washing process in which washing water is sprayed from the water level, the washing water is set below the water level of the water storage section. The dishwasher according to any one of claims 1 to 4, wherein the stirring means is operated during purification of the stirring means.