JP3777505B2 - Dishwasher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dishwasher for washing dishes by spraying a steam beam like a jet shape.
[0002]
[Prior art]
Conventionally, a dishwasher using steam injection is known. FIG. 7 is a longitudinal sectional view showing the overall structure of such a conventional dishwasher, which is disclosed in, for example, Japanese Patent Laid-Open No. 10-262893.
[0003]
As shown in FIG. 7, this conventional dishwasher stores tableware 114 in a cleaning chamber 113 via a tableware placing basket 115 and stores cleaning water in a bottom surface portion 113 a of the cleaning chamber 113. This washing water is supplied from the water supply pipe 121 through the water supply valve 122, the water supply pipe 123, the heater 127, the branch valve 124, and the water supply pipe 125. The branch valve 124 has a function of selectively switching and supplying the cleaning water heated by the heater 127 to the water supply pipe 125 or 126. When the washing water is sent to the water supply pipe 125 side, the washing water is jetted from the jet nozzle 129 toward the tableware 114 placed on the tableware placing basket 115 in the washing chamber. Further, when the cleaning water is sent to the water supply pipe 126 side, it is supplied to the steam injection unit 130 and is injected into the cleaning chamber as steam. A fan 131 is provided in the vicinity of the steam injection unit 130 to stir the steam filled in the cleaning chamber. The cleaning water and steam sprayed into the cleaning chamber are collected at a drain outlet 113b provided in the bottom surface portion 113a, and are discharged out of the main body 111 through the drain pipe 132.
[0004]
In the conventional dishwasher having such a configuration, the water supply valve 122 is opened at the start of the cleaning operation, and the wash water, which is tap water supplied through the water supply pipe 121, is supplied from the water supply pipe 123 through the heater 127. To the branch valve 124. Then, the branch valve 124 opens the water supply pipe 126 side to supply cleaning water to the steam injection unit 130. Next, in the steam injection unit 130, the washing water is boiled to inject high-temperature steam, and the fan 131 starts air blowing operation to stir the high-temperature steam filled in the cleaning chamber 113 so that the dishes become dirty with the steam. To weaken the adhesive strength. Thereafter, the branch pipe 124 opens the water supply pipe 125 side to supply cleaning water to the cleaning water injection unit 128, and the cleaning water is injected from the injection nozzle 129 using the water pressure, and the dishes are washed with the injected cleaning water. And clean the dishes.
[0005]
[Problems to be solved by the invention]
However, in the conventional dishwasher, although steam is used, the steam is only used to weaken the adhesion of the dirt on the tableware, and serves only as an auxiliary function for the washing water to be jetted. For this reason, it was not effective for tea fumigation stains and lipsticks on cups, which had to be handled by hand after all.
[0006]
In addition, pet dishes, ashtrays, triangular corners, and sink sink center pockets that you don't want to wash by hand, but can be washed away with a dishwasher because of the quality of the dirt, had to be handwashed after all.
[0007]
In addition, pans of sizes that could not be accommodated in the main body, and ventilation fan blades had no effect, and eventually had to be hand-washed.
[0008]
The technical problem of the present invention is to make it possible to clean more cleanly than hand washing without requiring hand washing even for objects that are difficult or impossible to wash in the main body of the dishwasher.
[0009]
[Means for Solving the Problems]
The dishwasher according to claim 1 of the present invention contains a tableware basket in which tableware is placed in a cleaning tank inside the main body, and is rinsed with rinse water or rinse water heated by the first heating means. In a dishwashing machine for rinsing rinsing water from a spray nozzle toward the dishes, a boiler having a second heating means, a water supply means for supplying water to the boiler, and provided between the boiler and the water supply means A check valve, an external cleaning device having one end connected to the boiler and a jet nozzle at the other end, and an external cleaning device during energization of the first heating means, and the second heating on the boiler side When energization of the means is started, priority is given to power supply to the second heating means on the boiler side, the energization to the first heating means on the cleaning tank side is temporarily stopped, and the second heating means on the boiler side After the energization to the end, the temporary stop is automatically canceled and the first on the washing tank side A power supply control device for controlling to restart the power supply to the heating means, in which the provided.
[0010]
Moreover, the dishwasher which concerns on Claim 2 provides the trigger which opens and closes so that the jet nozzle can inject steam etc. freely in a jet nozzle .
[0011]
Moreover, the dishwasher according to claim 3 connects the external cleaning device to the dishwasher main body via the flexible communication pipe, and holds the external cleaning device in the dishwasher main body detachably. Means are provided.
[0013]
Further, the dishwasher according to claim 4 is provided with a newly installed jet nozzle in the cleaning tank for jetting steam generated from the boiler into the cleaning tank in a jet form, and a supply destination of the steam generated from the boiler. A switching valve for switching between the external cleaning device side and the cleaning tank inside is provided.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1. FIG.
FIG. 1 is a longitudinal sectional view showing the overall configuration of the dishwasher according to the first embodiment of the present invention, FIG. 2 is a front view showing an example of the operation unit, and FIG. 3 holds the operation unit of the external cleaning device. FIG. 4 is a flowchart for explaining the operation when the steam button is pressed during energization of the first heated hand throw.
[0015]
In FIG. 1, 1 is a main body of a dishwasher, 2 is a washing tub installed in the main body 1, 3 is tableware, 4 is a tableware basket placed in the washing tub 2 and placing the tableware 3, and 5 is washing A water storage tank 6 for storing water and rinsing water is a two-way valve type water supply means, and has a function of supplying cleaning water and rinsing water to the cleaning tank 2 or supplying steam water to the boiler 17. is doing. 14 is a water supply pipe for connecting the water supply means 6 and the water supply, and 7 is a water level detection means. Is the cleaning water and the rinsing water supplied to the cleaning tank 2 by the water supply means 6 appropriate for the cleaning and rinsing? It has a function to detect. Reference numeral 8 denotes a first heating unit, which has a function of heating the cleaning water and the rinsing water supplied to the cleaning tank 2 by the water supply unit 6. Reference numeral 9 denotes an injection nozzle, which has a function of injecting cleaning water and rinsing water heated by the first heating hand throw 8 onto the tableware 3 to perform cleaning and rinsing.
[0016]
10 is a cleaning pump that also serves as a water supply / drainage, 11 is a residue filter, 12 is a first circulation path, 13 is a second circulation path, and 15 is a drainage path, and the cleaning water supplied to the cleaning tank 2 by the water supply means 6 The rinsing water is sent from the water storage tank 5 through the first circulation path 12 to the second circulation path 13 during the forward rotation of the washing pump 10, and is sprayed from the spray nozzle 9 to the tableware 3 and sprayed. Water and rinsing water are collected in the water storage tank 5 from the bottom of the washing tank 2 and are circulated again. When the specified cleaning and rinsing process is completed, the cleaning pump 10 starts to reverse, and the cleaning water and rinsing water stored in the water storage tank 5 are drained from the drainage path 15 to the outside of the main body 1. Yes.
[0017]
Reference numeral 16 denotes a second heating means, and reference numeral 17 denotes a boiler including the second heating means 16. The boiler is supplied with water from the water supply means 6 and has a function of generating steam. Reference numeral 18 denotes an external cleaning device having a jet nozzle 19 at the tip and a trigger 18a for opening and closing the jet nozzle 19, and is detachably connected to a port 17a of the boiler 17 via a flexible communication pipe 21. The steam generated by the second heating means 16 can be jetted by the user operating it in a desired direction. 20 is a check valve installed between the water supply means 6 and the boiler 17 in order to ensure the pressure in the boiler 17, and 22 is an operation unit installed at the lower front of the main body 1, as shown in FIG. Various operation buttons such as a steam button 23 for generating steam and various operation confirmation LEDs such as an LED 24 for confirming whether the boiler 17 is in operation are provided.
[0018]
Further, the right side surface of the main body 1 is provided with a belt-like holding means 29 for detachably holding the external cleaning device 18 as shown in FIG. 3, and the external cleaning device 18 obstructs the door opening / closing operation. There is no. Here, an example in which the holding means 29 of the external cleaning device 18 is installed on the right side surface of the main body 1 is described as an example, but the installation position of the holding means 29 is not necessarily set on the right side surface of the main body 1. Needless to say, any of all surfaces including the surface having the operation unit 22 of the main body 1 may be used.
[0019]
In addition, here, the boiler 17 is arranged at the upper part in the main body 1 and the port 17a is protruded outward from the upper surface of the main body as an example. However, these installation positions are surfaces having an operation part. Any of all surfaces including (front surface) may be used.
[0020]
Next, operation | movement of the dishwasher of embodiment is demonstrated. In a normal dishwashing process, the washing water that has passed through the water supply pipe 14 is supplied to the washing tank 2 through the two-way valve type water supply means 6 switched to the washing tank 2 side, and is stored in the water storage tank 5. Washing water stored in the water storage tank 5 can be obtained by the water level detection means 7 in an amount appropriate for washing. When the cleaning water reaches an appropriate amount, the water supply by the water supply hand throw 6 is stopped and the cleaning process is started.
[0021]
When the cleaning process is started, the cleaning pump 10 is rotated forward, and the cleaning water is heated by the first heating hand dispense 8 while being sent to the cleaning pump 10 through the first circulation path 12, and the second circulation. The tableware 3 sprayed from the spray nozzle 9 via the path 13 and placed on the tableware basket 4 is washed. At this time, a detergent (not shown) is put in the washing water. The above operation is repeated until the cleaning process is completed, and when the cleaning process is completed, the cleaning pump 10 reverses and the cleaning water and the rinsing water stored in the water storage tank 5 are drained out of the main body 1 from the drainage path 15. Thereafter, rinsing is performed in the same number of times as in the cleaning, and one cycle of cleaning is completed. However, the rinse water is heated only for the final number of times specified, and no detergent is added during the rinse.
[0022]
Regardless of the normal dishwashing process, when the steam button 23 is pressed, the operation confirmation LED 24 is turned on, the two-way valve type of the water supply means 6 is switched to the boiler 17 side, and water supply to the boiler 17 is started. The second heating means is energized. Thereby, the water supplied to the boiler 17 boils and steam is generated. At this time, the pressure in the boiler 17 becomes high, but since the check valve 20 is provided between the water supply means 6 and the boiler 17, the water supply means 6 side steam does not flow backward.
[0023]
The steam generated in the boiler 17 is sent to the external cleaning device 18 through the communication tube 21 that can be rotated and bent. Here, the trigger 18a is directed toward the jet nozzle 19 of the external cleaning device 18 for things that cannot be washed in the main body 1, such as teacup fouling, lipstick on a cup, ashtray, triangular corner, etc. pulling the is a steam beam or the like from the jet nozzle 19 is injected, the injection pressure, such as hot a steam beam, soil components are removed.
[0024]
Here, the steam button 23 and the operation check LED 24 are described as an example provided in the operation unit 22, but the steam button 23 and the operation check LED 24 may be provided in the external cleaning device 18. You may provide in both the external washing | cleaning apparatus 18 and the operation part 22. FIG. Furthermore, the operation check LED 24 may not be provided as long as the switch can check the ON / OFF state.
[0025]
When the first heating hand throw 8 is energized when the steam button 23 is pressed, the power supply control device (not shown), as shown in the flowchart of FIG. The energization to 16 is controlled. That is, when the steam button 23 is turned on (step 1), it is determined whether or not the first heating hand pitch 8 is in an energized state at that time (step 2), and the first heating hand pitch 8 is energized. If it is in the state, the energization to the first heating hand throw 8 is temporarily stopped (step 3), the energization to the second heating hand throw 16 is started (step 4), and steam can be generated (step 4). Step 5). If it is determined in step 2 that the first heating hand throw 8 is not energized, the process skips to step 4 and immediately starts energizing the second heating hand throw 16 so that steam can be generated. Thereafter, when the steam button is turned off (step 6), it is determined whether or not the first heating hand throw 8 is in the energization pause state at that time (step 7). If it is not in the energization pause state, the process is terminated. If it is determined in step 7 that the first heating hand throw 8 is in the energization pause state, energization to the first heating hand throw 8 is resumed ( Step 8), the energization switching control processing of the first and second heating hand throws 8 and 16 is terminated. In this way, simultaneous energization of the first heating hand pitch 8 and the second heating hand pitch 16 is prevented.
[0026]
Embodiment 2. FIG.
FIG. 5 is a longitudinal sectional view showing the overall configuration of the dishwasher according to the second embodiment of the present invention, and FIG. 6 is a front view showing an example of the operation unit. In each figure, the first embodiment ( The same parts as those in FIGS. 1 and 2) are denoted by the same reference numerals, and the description thereof is omitted.
[0027]
In each figure, 25 is the switching valve, 26 is a jet nozzle provided in the cleaning tank, 27 is LED, 28 for checking the external jet such as a steam beam to check the cleaning bath jet such as a steam beam LED for. The other configuration is the same as that of the first embodiment (FIGS. 1 and 2) described above, and has all the functions of the first embodiment.
[0028]
In the dishwasher of this embodiment, when the steam button 23 is pressed, the external jet injection confirmation LED 27 is turned on. At this time, the switching valve 25 is switched is the external cleaning device 18 side, the boiler 17 is in operation, a steam beam or the like is injected from the jet nozzle 19 and pull the trigger 18a of the external cleaning device 18.
[0029]
When the steam button 23 is pressed again, the cleaning tank jet injection confirmation LED 28 is turned on. At this time, the switching valve 25 is switched into the cleaning tank a jet nozzle 26 side, the boiler 17 is in operation, a steam beam or the like is injected into the cleaning tank 2. For this reason, the washing | cleaning performance of tableware can be improved by the synergistic effect with an injection nozzle, without using a detergent. A plurality of jet nozzles 26 in the cleaning tank may be provided.
[0030]
Although the steam button 23, the external jet injection confirmation LED 27, and the cleaning tank jet injection confirmation LED 28 have been described as examples provided in the operation unit 22, these steam button 23, external jet injection The LED 27 for confirmation and the LED 28 for confirming jet injection in the cleaning tank may be provided in the external cleaning device 18 or in both the external cleaning device 18 and the operation unit 22. Furthermore, if it is a switch of the type which can confirm the state of ON / OFF, LED 27 for external jet injection confirmation and LED 28 for jet injection confirmation in a washing tank may not be required.
[0031]
【The invention's effect】
As described above, according to the invention of claim 1, the boiler having the second heating means, the water supply means for supplying water to the boiler, the check valve provided between the boiler and the water supply means, and one end thereof During the energization of the external cleaning device connected to the boiler and having the jet nozzle at the other end and the first heating means, the external cleaning device was used and the energization of the boiler-side second heating means was started. In this case, priority is given to the power supply to the second heating means on the boiler side, the power supply to the first heating means on the cleaning tank side is temporarily stopped, and the power supply to the second heating means on the boiler side is terminated. A power supply control device that automatically cancels the temporary stop and controls to resume energization of the first heating means on the washing tank side, so that it is difficult to wash in the main body, and the lipstick attached to the cup, Due to the quality of the pan, ventilator fan, and dirt that cannot be accommodated in the body Pet dishes in which it is hesitation to wash in the vessel washing machine, ashtray, triangular corner, also, such as sink sink of the center pocket, without having to hand-washing, was able to clean cleaning without the use of detergent. Further, the check valve can prevent the water supply means side steam and the like from flowing back, and can secure the pressure in the boiler. For this reason, the injection pressure from the jet nozzle can be increased, and the performance of washing without using a detergent can be improved. Further, the power supply control device that prioritizes power supply to the second heating means on the boiler side can avoid simultaneous energization to the first and second heating means, and can prevent excessive power consumption. It was.
[0032]
Further, according to the invention of claim 2 , since the trigger for opening and closing the jet nozzle so as to be able to spray freely is provided in the jet nozzle, the usability is improved.
[0033]
According to the invention of claim 3 , the external cleaning device is connected to the main body via the flexible communication pipe, and the holding means for detachably holding the external cleaning device is provided on the main body. Within the area that can be reached by the flexible communication pipe, the external cleaning device can be freely carried and the jet nozzle can be directed in a desired direction, so that the usability is improved and the external cleaning device can be easily stored.
[0035]
According to the invention of claim 4 , a jet nozzle in the cleaning tank for jetting steam generated from the boiler into the cleaning tank is newly installed, and the supply destination of the steam generated from the boiler is externally set. Since a switching valve for switching between the cleaning device side and the inside of the cleaning tank was provided, steam or the like could be supplied into the cleaning tank. For this reason, it was possible to improve the cleaning performance of dishes by using a synergistic effect with the spray nozzle without using a detergent.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an overall configuration of a dishwasher according to a first embodiment of the present invention.
FIG. 2 is a front view showing an example of an operation unit of the dishwasher according to the first embodiment.
FIG. 3 is a side view for explaining holding means for holding an operation part of the external cleaning device of the dishwasher according to the first embodiment.
FIG. 4 is a flowchart for explaining an operation when a steam button is pressed during energization of the first heated hand throw of the dishwasher according to the first embodiment.
FIG. 5 is a longitudinal sectional view showing an overall configuration of a dishwasher according to a second embodiment of the present invention.
FIG. 6 is a front view showing an example of an operation unit of the dishwasher according to the second embodiment.
FIG. 7 is a longitudinal sectional view showing an overall configuration of a conventional dishwasher.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body, 2 Washing tank, 3 Tableware, 4 Tableware basket, 6 Water supply means, 8 1st heating means, 9 Injection nozzle, 16 2nd heating means, 17 Boiler, 18 External washing apparatus, 19 Jet nozzle, 20 Check valve, 21 flexible communication pipe, 25 switching valve, 26 jet nozzle in washing tank, 29 holding means.

Claims (4)

A dish basket in which dishes are placed in a washing tank inside the main body is accommodated, and washing water and rinsing water or washing water and rinsing water heated by the first heating means are directed from the spray nozzle to the dishes. In dishwashers that spray and wash,
A boiler having a second heating means;
Water supply means for supplying water to the boiler;
A check valve provided between the boiler and the water supply means;
An external cleaning device having one end connected to the boiler and the other end having a jet nozzle;
When energization to the second heating means on the boiler side is started using the external cleaning device during energization to the first heating means, power is supplied to the second heating means on the boiler side , Temporarily stop energization to the first heating means on the washing tank side, and after the energization to the second heating means on the boiler side is finished, the temporary stop is automatically canceled, the washing tank side A power supply control device that controls to resume energization of the first heating means;
A dishwasher characterized by the provision of   2. The dishwasher according to claim 1, wherein a trigger for opening and closing steam or the like from a boiler is provided in the jet nozzle.   2. The dishwasher according to claim 1, wherein the external cleaning device is connected to the main body through a flexible communication pipe, and holding means for detachably holding the external cleaning device is provided on the main body. . In addition to newly installing a jet nozzle in the cleaning tank that jets steam generated from the boiler into the cleaning tank, the supply destination of steam generated from the boiler is between the external cleaning device side and the cleaning tank inside The dishwasher according to any one of claims 1 to 3 , further comprising a switching valve for switching.

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