JP2005342385A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher which significantly improves the cleaning performance, can clean cooking stains which conventionally could not be cleaned before and exhibits significant cleaning performance against sticky stains such as lipstick. <P>SOLUTION: The dishwasher is so structured as to supply cleaning water used in a cleaning process to a cleaning tub 2 storing dishes 9 by a water supply valve 3, heats the cleaning water by a heater 10, and attach a detergent mist of particulates to cleaned objects by a mist generating means 15. The dishwasher significantly improves the cleaning performance by controlling a blower by a sensed temperature of a temperature sensing means 23 in a pretreatment process in which the detergent mist of particulates is attached to the dishes 9. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dishwasher that performs cleaning by spraying cleaning water onto tableware or the like.

  Conventionally, a general dishwasher is configured as shown in FIG. Hereinafter, the configuration will be described. As shown in FIG. 4, the dishwasher main body 1 has a washing tub 2 provided therein, and water or hot water is supplied into the washing tub 2 by a water supply valve 3. A drainage hole 4 is provided at the bottom of the washing tank 2, and a washing pump 5 that is connected to the drainage hole 4 and is driven by a motor is attached, and washing water is jetted from the washing nozzle 6 by the washing pump 5. It is configured to circulate inside. Further, the drain hole 4 is provided with a residue filter 7 for collecting the residue. A temperature detection means 8 composed of a thermistor is provided at the bottom of the cleaning tank 2.

  That is, the cleaning water supplied into the cleaning tank 2 passes through the residual filter 7 and is sucked into the cleaning pump 5 and supplied from the cleaning pump 5 to the cleaning nozzle 6 provided at the inner bottom of the cleaning tank 2. The washing water sprayed from the washing nozzle 6 circulates along a route that returns to the drain hole 4 after washing the tableware 9 and the like. At this time, the residue or the like dropped from the tableware 9 flows into the residue filter 7 together with the washing water, and the residue having a size that cannot pass through the residue filter 7 is collected by the residue filter 7.

  Further, a heater 10 for heating the cleaning water is provided between the cleaning nozzle 6 and the bottom of the cleaning tank 2, and tableware 9 and the like can be neatly arranged above the cleaning nozzle 6 so that the cleaning water is effectively supplied. A tableware basket 11 configured to be sprayed on the tableware 9 is installed for efficient cleaning. Further, the drain pump 12 discharges cleaning water through the drain hose 13 to the outside of the machine. The air blower 14 for drying is provided, and the heater 10 and the air blower 14 for drying are driven at the time of a drying process, thereby blowing warm air into the cleaning tank 2 to dry the dishes 9.

There has also been proposed a dishwasher having a water particle generation mechanism for improving cleaning performance, including an enzyme, and improving the cleaning performance by swelling of contaminants and the action of the enzyme (see, for example, Patent Document 1). .
JP 2000-189375 A

  However, in these conventional configurations, it is not possible to wash all the stains washed by the dishwasher. In particular, it is not good for dishes that are directly heated and cooked with scorch. For example, gratin, chawanmushi, etc. Further, even those having a water particle generation mechanism were effective only for specific contamination.

  The present invention solves the above-described conventional problems, greatly improves the cleaning performance, and can clean dishes that could not be cleaned conventionally, and uses a dishwasher at room temperature, water temperature, etc. The objective is to demonstrate stable and high cleaning performance regardless of the environment.

  In order to achieve the above-mentioned object, the present invention provides a cleaning tank for storing tableware, a water supply means for supplying cleaning water used in a cleaning process, a cleaning pump for pumping cleaning water, and a cleaning pumped by the cleaning pump. A cleaning nozzle that sprays water onto tableware, a heating unit that heats the cleaning water, a temperature detection unit that detects the temperature of the cleaning liquid, a blower, and a mist generating unit that attaches a fine detergent solution to the tableware. A pretreatment process in which the detergent mist of fine particles is scattered by the mist generating means, and a main cleaning process in which a cleaning pump is driven after the pretreatment process to inject cleaning water into tableware, and the mist generating means in the pretreatment process. And the heating means are driven, and the blower is controlled by the output of the temperature detecting means.

  Accordingly, the cleaning performance can be greatly improved by the surface activity of the fine particle detergent mist by having a pretreatment process for adhering the fine particle detergent mist to contaminants adhering to tableware and the like. Fine particle detergent mist stays in the lower part of the washing tank because it is heavier than air, but by controlling the air blower with the output of the temperature detection means, an upward flow is generated in the washing tank to efficiently remove the detergent mist. The cleaning tank can be filled to further improve the cleaning performance. As a result, regardless of the room temperature or the temperature of the supplied water, the amount of mist generated and the filling of the mist into the cleaning tank can be ensured and stable cleaning performance can be obtained.

  The dishwasher of the present invention can greatly improve the cleaning performance by having a pretreatment process in which fine particle detergent mist adheres to contaminants attached to tableware and the like. By controlling the drive, stable cleaning performance can be obtained.

  1st invention is a washing tank which stores tableware etc., a water supply means which supplies washing water used at a washing process, a washing pump which pumps washing water, and washing water pumped from a washing pump to tableware etc. The mist generation comprises: a cleaning nozzle for spraying, a heating means for heating the cleaning water, a temperature detection means for detecting the temperature of the cleaning liquid, a blower, and a mist generating means for adhering the fine particle detergent liquid to tableware, etc. A pretreatment process in which fine particle detergent mist is scattered by the means, and a main cleaning process in which the cleaning pump is driven after the pretreatment process to inject cleaning water onto the tableware, and the mist generating means and the heating means are driven in the pretreatment process The air blower is controlled by the output of the temperature detecting means, which ensures that the amount of mist generated and the mist can be filled in the cleaning tank regardless of the room temperature or the temperature of the supplied water. It is possible to obtain high cleaning performance not conventionally been.

  According to a second invention, in the first invention, the air blower is driven when the temperature T0 detected by the temperature detecting means at the start of operation is lower than a predetermined temperature. It is possible to reliably fill the inside, and to obtain a high cleaning performance that has never been achieved before.

  According to a third invention, in the first invention, the blower is driven when the detected temperature T1 of the temperature detecting means after a predetermined time has elapsed from the start of operation is lower than the predetermined temperature. The generated amount and the filling of the mist into the cleaning tank can be ensured, and high cleaning performance unprecedented can be obtained.

  According to a fourth invention, in any one of the first to third inventions, the air blower drive capability in the pretreatment process is controlled by the detected temperature T0 of the temperature detecting means at the start of operation. Regardless of this, the amount of mist generated and the filling of the mist into the cleaning tank can be ensured and high cleaning performance unprecedented can be obtained stably.

  In a fifth aspect of the invention according to any one of the first to third aspects, when the detection temperature T0 of the temperature detection means at the start of operation is lower than a predetermined temperature, the amount of air blown by the blower in the pretreatment process is increased. Therefore, when the room temperature is low, the amount of mist generated and the filling of the mist into the cleaning tank can be ensured, and a high cleaning performance unprecedented can be obtained stably.

  In a sixth aspect of the present invention, in any one of the first to fifth aspects, when the detected temperature T0 of the temperature detecting means at the start of operation is higher than a predetermined temperature, after driving the blower for a predetermined time in the pretreatment process, Drives the mist generating means and cools the washing tank when the temperature in the washing tank is high, so the upward flow is promoted in the washing tank and the mist can be reliably filled in the washing tank. Thus, it is possible to obtain a high cleaning performance that has not been achieved conventionally.

  7th invention controls the air blower in a pretreatment process by the detection temperature T1 of the temperature detection means after progress for a predetermined time from the start of operation in any one invention of the said 1st-6th. Regardless of the water temperature, the amount of mist generated and the filling of the mist into the washing tank can be reliably ensured and a high cleaning performance unprecedented can be obtained.

  According to an eighth invention, in any one of the first to sixth inventions, when the detected temperature T1 of the temperature detecting means after the elapse of a predetermined time from the start of operation is lower than the predetermined temperature, the air is sent by the blower in the pretreatment process. The air volume is increased, and when the temperature of the supplied water is low, the amount of mist generated and the filling of the mist into the cleaning tank can be reliably ensured, and high cleaning performance unprecedented can be obtained.

  According to a ninth invention, in any one of the first to eighth inventions, the air blower is configured by a dry air blower that blows air during the drying process of drying the tableware, so that a dedicated air blower is not required and is inexpensive. A small dishwasher can be realized.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description. Further, the present invention is not limited by this embodiment.

(Embodiment 1)
1 is a longitudinal sectional view of a dishwasher according to Embodiment 1 of the present invention, FIG. 2 is a front view of the dishwasher, and FIG. 3 is an enlarged sectional view of a mist generating means of the dishwasher. The mist generating means 15 scatters a high-concentration detergent solution obtained by dissolving a detergent with a small amount of water into the washing tub 2 and attaches the scattered fine particle detergent mist to the tableware 9 or the like.

  Specifically, as shown in FIG. 3, the mist generating means 15 includes an ultrasonic oscillation device 16, a case 17 that protects the ultrasonic oscillation device 16 from dirt, a transmission fluid 18 enclosed in the case 17, a case, 17 includes a cover 19 that covers 17. The cover 19 is provided with a hole 20 through which the generated mist passes. Further, the cover 19 also serves as a detergent container, and has a detergent charging portion 22 so that the detergent 21 does not touch the case 17 directly. The temperature detection means 23 is a thermistor provided on the lower surface of the cleaning tank 2 and detects the temperature of the cleaning water and the temperature of the machine body.

  A blower 25 having a blower opening 24 is provided in the vicinity of the mist generating means 15 so that the detergent mist generated from the mist generating means 15 can be effectively diffused into the cleaning tank 2. In this Embodiment, this air blower 25 is set as the structure which served as the dry air blower which ventilates dry air at the time of a drying process.

  The dishwasher in the present embodiment has a pretreatment process in which the detergent solution is scattered by the mist generating means 15 and left on the tableware 9 and the like. In this pretreatment process, the mist generation predetermined value for obtaining a predetermined mist generation amount is provided. After supplying water below the water level, the mist generating means 15 is driven to scatter the fine particle detergent mist. The supplied cleaning water is heated by a heater (heating means) 10 to generate convection in the cleaning tank 2 and to effectively fill the cleaning tank 2 with the detergent mist.

  In the pretreatment process, the blowing device 25 is driven and blown from the blowing port 24 provided in the vicinity of the mist generating device 15, thereby promoting the diffusion of the detergent mist into the cleaning tank 2.

  The operation and action of the above configuration will be described. First, a standard amount of detergent 21 is placed in the detergent charging part 22 of the mist generating means 15 and the operation is started. Water is supplied from a water supply valve (water supply means) 3 to a mist generation level 26 or less for obtaining a predetermined mist generation amount. In this case, the predetermined amount of water supply is set by a water amount detection means (not shown) that detects the amount of water. However, the water supply valve 3 having a constant flow rate may supply water for a predetermined time. Since the mist generation amount is inversely proportional to the water level, the mist generation amount can be increased by setting the water level lower than the mist generation predetermined water level 22 for obtaining the predetermined mist generation amount, and further effects can be expected.

  Next, when the ultrasonic oscillating device 16 of the mist generating means 15 is driven as a pretreatment process, ultrasonic waves are transmitted through the transmission fluid 18 and the case 17 to generate mist containing detergent components from the water surface. Since the detergent is put in the detergent inlet 22 provided on the cover 19 of the mist generating means 15, the cleaning water in the cover 19 has a very high detergent concentration. Therefore, a mist having a high detergent concentration is generated, and the detergent mist having a high concentration of fine particles is scattered in the cleaning tank 2. The fine-particle and high-concentration detergent mist adheres to the tableware 9 and the like, and the fine-particle detergent mist is chemically decomposed by the surface activity of the fine-particle and high-concentration detergent mist. . For this reason, it becomes possible to raise the stain | pollution | contamination adhering to tableware, especially stain | pollution | contamination, such as a lipstick and tea astringency, from the tableware surface.

  Further, the blowing device 25 is driven in the pretreatment process, and air is blown from the blowing port 24 provided in the vicinity of the mist generating device 15, thereby promoting the diffusion of the detergent mist into the cleaning tank 2. Further, when the detected temperature T0 at the start of operation, that is, the room temperature is low, the air blowing amount of the air blower 25 in the pretreatment process is increased (for example, the rotational speed of the air blower 25 is increased or the driving time is lengthened). When the detected temperature T1 of the temperature detection means 23 after the elapse of a predetermined time after the start of operation, that is, the feed water temperature is low, the air blowing amount of the blower 25 is increased (for example, the driving time of the blower 25 is set to (Table 1)). Show).

これにより、ヒータ１０の加熱による洗浄槽２内の対流効果が発生するまで、効果的に洗剤ミストを洗浄槽２内への充満短縮され、室温や給水される水温にかかわらず洗浄槽内への充満が短時間に確実にでき安定した洗浄性能を得ることができる。

Thereby, until the convection effect in the cleaning tank 2 due to the heating of the heater 10 occurs, the filling of the detergent mist into the cleaning tank 2 is effectively shortened, and the cleaning mist is supplied to the cleaning tank regardless of the room temperature or the temperature of the supplied water. Filling can be ensured in a short time and stable cleaning performance can be obtained.

  Further, when the detected temperature T0 of the temperature detecting means 23 at the start of operation is higher than a predetermined temperature (for example, when the temperature of the cleaning tank 2 is high, such as when the second operation is performed immediately after the first operation), pre-processing If the mist generating means 15 is driven after the air blower 25 is driven for a predetermined time in the process, the cleaning tank 2 can be cooled before the mist generating means 15 is driven. Even in such a case, the mist generating means 15 When driven, the upward flow in the cleaning tank 2 is promoted, so that the mist can be reliably filled in the cleaning tank, and high cleaning performance unprecedented can be obtained stably.

  Next, in the main cleaning step after the high-concentration detergent mist of fine particles is scattered from the mist generating means 15 in the pretreatment process, water is supplied for a predetermined time from the water supply valve 3 so that the cleaning pump 5 does not generate air mist or the like. The generated water level is 22 or more. In this embodiment, water is supplied for a predetermined time, but a predetermined amount of water may be set by a water amount detecting means (not shown) for detecting the amount of water. Thereby, the capability of the cleaning pump 5 can be exhibited stably, and a stable cleaning performance can be always obtained. When the water supply is completed, the heater 10 is energized to heat the cleaning water. Here, cleaning is performed by spraying cleaning water from the cleaning nozzle 6 by the cleaning pump 5. At this time, it effectively cleans 9 stains such as tableware that has been lifted by the action of detergent mist with a high concentration of fine particles.

  In addition, by using the air blower 25 also as a dry air blower that blows air during the drying process of drying the dishes, an inexpensive and small dishwasher can be realized without requiring a dedicated air blower.

  As described above, in the present embodiment, the mist generating means 15 has a pretreatment process in which fine detergent mist is scattered on the tableware 9 and the like, and the blower 25 is controlled by the output of the temperature detecting means 23. Thus, regardless of the room temperature or the temperature of the supplied water, the amount of mist generated and the filling of the mist into the cleaning tank can be reliably ensured, and high cleaning performance unprecedented can be obtained.

  Further, the blower drive capability in the pretreatment process is controlled by the detection temperature T0 of the temperature detection means at the start of operation and / or the detection temperature T1 of the temperature detection means after a predetermined time has elapsed from the start of operation. By doing so, the amount of mist generated and the filling of the mist into the washing tank can be ensured regardless of the room temperature or the temperature of the supplied water, and a high cleaning performance unprecedented can be obtained stably.

  Also, when the temperature in the cleaning tank is high by driving the mist generating means after driving the blower for a predetermined time in the pretreatment process when the detected temperature T0 of the temperature detecting means at the start of operation is higher than the predetermined temperature. In addition, since the cleaning tank is cooled, the upward flow is promoted in the cleaning tank, and the mist can be surely filled in the cleaning tank, and a high cleaning performance which is not conventionally achieved can be obtained stably.

  Moreover, an air blower is comprised by the dry air blower which ventilates at the time of the drying process which dries tableware, and can implement | achieve an inexpensive small dishwasher without requiring a dedicated air blower.

  As described above, the dishwasher according to the present invention has a pretreatment process in which fine particle detergent mist is attached to an object to be washed and left to stand, so that the cleaning power can be greatly improved. Since the cleaning performance can be further improved by controlling the air blower in the process, it is useful as a dishwasher or the like for cleaning by spraying cleaning water onto the tableware.

The longitudinal cross-sectional view of the dishwasher of Embodiment 1 of this invention Front view of the dishwasher Enlarged sectional view of the mist generating means of the dishwasher Vertical section of a conventional dishwasher

Explanation of symbols

2 Washing tank 3 Water supply valve (water supply means)
5 Washing pump 6 Washing nozzle 9 Tableware 10 Heater (heating means)
15 Mist generating means 23 Temperature detecting means 25 Blower

Claims (9)

A cleaning tank for storing tableware, a water supply means for supplying cleaning water used in the cleaning process, a cleaning pump for pumping the cleaning water, a cleaning nozzle for injecting the cleaning water pumped from the cleaning pump to the tableware, A heating means for heating the cleaning water, a temperature detecting means for detecting the temperature of the cleaning liquid, a blower, and a mist generating means for adhering the fine particle detergent liquid to tableware or the like, the fine mist detergent mist by the mist generating means A pre-treatment process for spraying and a main cleaning process for driving the washing pump after the pre-treatment process to inject washing water into tableware, etc., driving the mist generating means and the heating means in the pre-treatment process, and the temperature detecting means The dishwasher which controlled the said air blower by the output of No .. The dishwasher according to claim 1, wherein the air blower is driven when the detected temperature T0 of the temperature detecting means at the start of operation is lower than a predetermined temperature. The dishwasher according to claim 1, wherein the air blower is driven when the detected temperature T1 of the temperature detecting means after the elapse of a predetermined time from the start of operation is lower than the predetermined temperature. The dishwasher according to any one of claims 1 to 3, wherein the blower device in the pretreatment process is controlled by the detected temperature T0 of the temperature detecting means at the start of operation. The dishwasher according to any one of claims 1 to 3, wherein when the detected temperature T0 of the temperature detecting means at the start of operation is lower than a predetermined temperature, the amount of air blown by the blower in the pretreatment process is increased. 6. The mist generating unit is driven according to claim 1, wherein the mist generating unit is driven after the blowing device is driven for a predetermined time in the pretreatment process when the detected temperature T 0 of the temperature detecting unit at the start of operation is higher than the predetermined temperature. dishwasher. The dishwasher according to any one of claims 1 to 6, wherein the blower in the pretreatment process is controlled based on the detected temperature T1 of the temperature detecting means after a predetermined time has elapsed from the start of operation. The dishwashing according to any one of claims 1 to 6, wherein when the detected temperature T1 of the temperature detecting means after a predetermined time has elapsed from the start of operation is lower than the predetermined temperature, the amount of air blown by the blower device in the pretreatment process is increased. Machine. A dishwasher given in any 1 paragraph of Claims 1-8 which an air blower consists of a dry air blower which blows in the drying process of drying tableware.

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