JP2001258813A - Dish washing dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the drying performance in a dish washing dryer to shorten the drying time. SOLUTION: This dish washing dryer comprises a washing tank 3 for housing washing matter 1, an air tank 17 for storing compressed air, an opening and closing valve 20 for opening and closing the air tank 17, and an injection part 22 for injecting the air in the air tank 17 into the washing tank 3. Since the water drops adhered to the washing matter 1 can be blown off by injecting the compressed air stored in air tank 17 into the washing tank 3 through the injection part 22 to reduce the water content to be dried, the drying performance can be enhanced to shorten the drying time. By using the air tank 17, a flow with high and high flow rate can be easily obtained even in a small-sized device, and the residual water collected with in the rim 25 of the bottom of a dish can be surely blown off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher and a dishwasher used in ordinary households and the like.

[0002]

2. Description of the Related Art Conventionally, there is a dishwasher of this type as described in Japanese Patent Application Laid-Open No. Hei 8-215128. As shown in FIG. 6, in this apparatus, an object 1 to be washed such as tableware is set in a washing basket 2 and then stored in a washing tank 3, and after the detergent is charged, the operation of the apparatus is started. First,
The water supply valve 4 operates to supply a predetermined amount of washing water to the washing tank 3, and then the washing pump 5 pressurizes the washing water and jets it from the washing nozzle 6. At this time, the heating element 7 provided in the cleaning tank 3
The cleaning process is performed while heating the cleaning water.

[0003] When the washing process for a predetermined time is completed, the washing water containing dirt is discharged out of the machine by the drainage pump 8, and fresh washing water is supplied. The cleaning pump 5 is operated, and the cleaning water is injected again from the cleaning nozzle 6 to rinse the object 1 to be cleaned, such as detergent or garbage (food that has adhered as dirt to tableware or the like). This rinsing step is performed about three times in succession, and when the rinsing step is completed, the washing water is discharged outside the machine.

Subsequently, a drying step is performed, and outside air is blown as indicated by arrows in FIG. By operating the blower 9, outside air is blown into the blowing nozzle 11 through the blowing path 10, supplied to the cleaning tank 3 from a blowing hole provided in the blowing nozzle 11, and dried to be cleaned 1. Are discharged from the exhaust port 12 to the outside of the machine. This drying step is performed for a predetermined time, and the operation of the dishwasher is ended.

In the drying step, the air is blown to promote the evaporation of water droplets adhered to the object 1 to be cleaned, thereby increasing the drying speed. However, the cleaning is performed by energizing the heating element 7 or providing a heating device in the air passage 10. By raising the temperature in the tank 3,
More evaporation can be promoted. Also, the blowing nozzle 1
By forming a slit-shaped air blowing hole in 1, the air velocity of the air blowing can be increased, the residual water adhering to the article 1 to be cleaned is blown off, and the drying time can be further shortened.

Further, the thread bottom of the tableware (a concave portion at the bottom of the tableware outside)
Drying performance was further improved by blowing away the residual water accumulated in the tank.

[0007] In addition, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent Application Publication No. 29-29, there is a configuration in which water is adhered to an object to be cleaned 1 by blowing off air by using an air pump to improve drying performance.

[0008]

However, in the conventional dishwasher / dryer, the air blown by the blower 9 is directly blown onto the object 1 to be washed, such as tableware, so that water droplets and thread bottoms adhered to the object 1 to be washed. In order to blow off the residual water, a blower 9 having a very high capacity is required. In particular, high pressure (high speed) is required to blow off the residual water remaining at
And it is necessary to inject air at a high flow rate. In general, a blower has a large air volume but a low pressure, and in order to obtain a high pressure, a large-sized and high-speed rotation is required, and accordingly, there is a problem that a device becomes large and an operation noise becomes extremely loud. I was In addition, when a small blower is used, there is a problem that the residual water does not sufficiently blow off and the drying performance is not improved.

When an air pump is used, high-pressure air can be easily obtained, but the flow rate is very small.
A sufficient effect could not be obtained, and in this case, a large air pump had to be used.

[0010]

According to the present invention, there is provided a cleaning tank for storing an object to be cleaned, an air tank for storing compressed air, an on-off valve for opening and closing the air tank, And an injection unit for injecting the air in the air tank into the cleaning tank.

According to the invention, compressed air is stored in the air tank, and the compressed air is released by opening / closing the on-off valve.
In addition, a flow with a high flow rate can be easily obtained. The object to be cleaned can be washed and dried by injecting the compressed air from the injection unit into the washing tank. After the washing or rinsing step, air can be blown from the spray unit toward the dishes, washing baskets, washing tubs, etc. to which water droplets have adhered, so that the water droplets that have adhered can be blown off and the amount of water to be dried is reduced. Performance can be improved and drying time can be shortened.

[0012] In addition, it usually takes several hours to dry the residual water accumulated on the yarn bottom of tableware only by blowing air. However, if compressed air is used, it can be blown off instantaneously. It is very effective and can greatly increase satisfaction after use.

[0013] In addition, in the case of the conventional configuration in which compressed air is injected from the ventilation duct, high-speed air reaches only a limited portion near the outlet, and water droplets cannot be sufficiently blown off.

Further, in order to spread the cleaning tank over the entire cleaning tank, the size of the air tank is increased. However, by using a jetting portion having a relatively small jet diameter of the air tank and jetting it to a location where the amount of water droplets is large, efficient jetting can be performed, the required amount of air can be reduced, and the size of the air tank can be reduced. In addition, by adjusting the injection diameter and angle of the injection unit, the injection speed and the injection angle can be set to the optimum state.

[0015] Further, if the conventional blower is used in combination with the blower, it is sufficient to blow out large water droplets, which are not easily dried by the blower alone, with compressed air and dry only the small water droplets with the blower, without enlarging the air tank. , Efficient drying can be performed.

Further, since the air injection energy is large,
If the air in the air tank is jetted to the object to be cleaned before or during the cleaning, it is possible to drop off the garbage and the like attached to the object to be cleaned, and it is possible to enhance the cleaning effect.

[0017]

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a cleaning tank for storing an object to be cleaned, an air tank for storing compressed air, an on-off valve for opening and closing the air tank.
And an injection unit for injecting the air in the air tank into the cleaning tank.

According to the present invention, the compressed air stored in the air tank is sprayed from the spraying section into the cleaning tank, whereby water droplets attached to the object to be cleaned can be blown off, and the amount of water to be dried is reduced. Therefore, the effect of improving the drying performance and shortening the drying time can be obtained. In addition, by using an air tank, a high-speed and high-flow flow can be easily obtained even with a small device, and residual water accumulated at the thread bottom of tableware can be reliably blown off.

Further, if the conventional air blower is used, large water droplets, which cannot be easily dried by the air blow, are blown off with compressed air, and only the small water droplets are dried by the air blower, without enlarging the air tank.
Efficient drying can be performed.

In addition, since the air injection energy is large,
If the air in the air tank is jetted to the object to be cleaned before or during the cleaning, it is possible to drop off the garbage and the like attached to the object to be cleaned, and it is possible to enhance the cleaning effect.

In the dishwasher / dryer according to the second aspect of the present invention, a plurality of injection units are provided. Since water droplets and residual water pools after the washing and rinsing steps are present at many and multiple locations, more water droplets can be blown off by using a plurality of injection units. Also, there is a thread bottom portion of only hot water in which a large amount of residual water is accumulated, but the number of the hot water alone is provided. Can blow off water. In addition, the amount of water droplets adhering to the washing basket other than the object to be washed and the wall surface of the washing tank is larger than the amount of water droplets adhering to the object to be washed, and compressed air is also injected into the washing basket and the washing tank. In addition, the amount of water drops on the washing basket and the wall surface can be reduced, and the satisfaction after the operation is completed can be improved.

A dishwasher according to a third aspect of the present invention is provided with a switching valve for switching the flow of compressed air.
Instead of injecting simultaneously from all the injection units, the injection unit that injects can be switched by opening and closing the on-off valve once. If the place where the tableware is placed or the place where the water droplets remain is detected, the compressed air can be injected only to that part, and the efficient and efficient injection can be performed.

Further, since the number of injections can be reduced by this, the number of noises generated by the opening / closing of the on-off valve and the injection is reduced, and the troublesome driving noise can be reduced. In addition, when the air tank is small, if the injection is performed simultaneously from a plurality of injection units, the amount of air injected from one injection unit, that is, the amount of energy, becomes small, and it becomes impossible to fly water droplets sufficiently. By using a valve, the number of injection points with one opening and closing of the on-off valve is reduced,
By increasing the amount of air injected from each injection unit,
Water droplets can be blown off sufficiently. After the on-off valve is opened, compressed air is stored in the air tank, and when a predetermined pressure is reached, the switching valve is switched and the on-off valve is opened again.If only one or a few on-off valves are used, many Strong compressed air can be sequentially ejected from the ejecting section, so that a wide range of water droplets can be blown off and the capacity of the air tank can be reduced.

According to the dishwasher of the fourth aspect of the present invention, the on-off valve opens and closes a plurality of times, so that water droplets that could not be blown off by one injection can be blown off reliably. In particular, in order to blow off a large amount of puddles such as residual water at the yarn bottom all in one injection, a large injection energy is required, and it is necessary to enlarge the air tank or increase the air pressure, leading to an increase in the size of the device. . However, even if the energy of one injection is small, the residual water may be blown off by several injections. By performing the injection several times, the air tank and the like can be made small, and the apparatus can be downsized. Further, even if the injection energy is sufficiently large, the water once blown off may adhere to or accumulate on the object to be cleaned again. By spraying a plurality of times, such re-adhered water can be blown off. Also, by spraying at the time of washing and drying,
It can be used for both cleaning and spraying.

[0025] In the dishwasher-dryer according to the fifth aspect of the present invention, the jetting unit is provided near the wall surface of the washing tank, and has a small protrusion into the washing tank. It will not be. Further, there is no danger that the tableware and the washing basket come into contact with the jetting unit and the jetting unit is damaged. Also, the water drops
Injecting compressed air from an ejection section provided near the top surface is very effective for blowing off water droplets, since it easily accumulates on the top of the object to be washed, including the thread bottom portion of the tableware placed face down.

In the dishwasher according to a sixth aspect of the present invention, the jetting portion is provided so as to protrude from a wall surface of the washing tank.
If the distance between the compressed air injection part and the water droplets is far, the energy of the injection will be much smaller and it will be difficult to fly the water droplets.To blow away the distant water droplets, it is necessary to use a large air tank or increase the air pressure There is.

However, if the jetting portion is provided so as to protrude from the wall surface of the cleaning tank, compressed air can be jetted from a short distance even to water droplets attached to the object to be cleaned near the center of the cleaning tank. Can be reliably dropped. That is, all the water droplets in the cleaning tank can be blown off without increasing the size of the apparatus. Washing baskets for setting tableware are often two-tiered, and the top part of the tableware stored in the lower part where water droplets tend to adhere is located in the center of the washing tank, and a large amount of water accumulated in this part Water droplets can also be easily blown off.

According to a seventh aspect of the present invention, there is provided a dishwasher comprising a washing basket for setting an object to be washed in a washing tank, and an ejection section provided in the washing basket. , Compressed air can be jetted from the closest distance to the object to be cleaned, and many water droplets can be blown off even with weak jetting energy. In addition, the jetting unit can be easily installed at a position where the jet can be jetted to the point of contact with the object to be cleaned together with the cleaning basket in which water droplets are likely to remain.

Further, if the air guide path for guiding the compressed air to the injection section is formed integrally with the washing basket, there is no problem in taking in and out of tableware and the like. Further, when the air guide path also serves as a washing basket, an increase in the number of parts and an increase in cost can be suppressed. In addition, since there is a rotating nozzle that injects washing water below the tableware and water is accumulated in the washing tank during washing, it is not possible to inject compressed air from below the washing tank to below the tableware. Although it is difficult, by providing the jetting unit in the washing basket, it is possible to jet the compressed air even to the lowest point of the tableware where water droplets easily accumulate.

The dishwasher / dryer according to claim 8 of the present invention has a structure in which a washing basket for setting an object to be washed is arranged in a washing tank, and a rough setting position of the object to be washed is defined in the washing basket. The ejection unit is provided above the set position. In order to store more objects to be washed in a limited-capacity washing tank, many washing baskets specify the standard tableware installation position with a cage pin or the like. Tableware etc. are set and used at the position. For this reason, when the jetting unit is provided above the standard set position, the compressed air can be jetted reliably onto the object to be cleaned.

In many cases, the cleaning water for cleaning is sprayed from below the cleaning tank, but this structure does not directly hit the upper surface of the object to be cleaned. For this reason, water is sprayed from below and collided with the top surface to collect water that falls and is dropped onto the upper surface of the tableware, for example, by providing irregularities on the top surface of the washing tank. If the portion is formed in a convex shape, many water droplets can be dropped on the upper surface of the object to be cleaned located below the jetting portion, and the performance of cleaning and rinsing can be improved.

In the dishwasher according to the ninth aspect of the present invention, the jetting section has a variable jetting direction, so that compressed air can be jetted over a wide range from one jetting section, and the number of jetting sections can be reduced. Further, even if the tableware is set at a position other than the standard specified position, the attached water droplets can be surely blown off.

[0033] A dishwasher according to claim 10 of the present invention comprises:
The injection unit is configured integrally with the cleaning tank, so that the number of parts can be reduced and there is no danger of water leakage even without using a seal configuration between the cleaning tank and the injection unit.

[0034]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a sectional view of a dishwasher according to Embodiment 1 of the present invention.

In FIG. 1, an object 1 to be washed such as tableware is set in a washing basket 2 and housed in a washing tank 3. There is a water supply valve 4 for supplying cleaning water to the cleaning tank 3, a cleaning pump 5 for pressurizing the cleaning water, and a cleaning water nozzle 6 for jetting the cleaning water.
Is provided with a plurality of injection holes 13. The washing tank 3 includes a filter 10 for collecting residual vegetables and a heating element 7 for heating, and includes a temperature sensor 15 for detecting the temperature of the washing tank. In addition, a drain pump 8 for discharging cleaning water and a blower 9 for sending air to the cleaning tank 3 are provided, and a blowing path 10 for guiding the air blown by the blower 9 to the cleaning tank 3 and an exhaust port 12 for discharging are cleaned. It is provided in the tank 3.

An air tank 17 for storing compressed air is provided.
, An air pump 18 as air compression means, and the air guide path 1
An opening / closing valve 20 for opening / closing the cleaning tank 9 and a check valve 21 are installed outside the cleaning tank 3.
9. A plurality of injection units 22 having small-diameter injection ports communicating with the nozzle 9.
Is provided. As shown in the figure, the jetting unit 22 is located above the tableware set at a standard setting position determined by a set pin 23 provided on the washing basket, and the jetting unit 22 is integrated with the washing tank 3. It is configured.

Next, the operation and the operation will be described. First, the object 1 to be washed such as tableware is set in the washing basket 2 and then the washing tank 3 is set.
After the detergent is put in, the operation of the apparatus is started.
The cleaning process is performed in the following order: a cleaning process for removing dirt from the article 1 to be cleaned, a rinsing step for flowing the attached detergent and garbage, and a drying step for drying water droplets attached to the article 1 to be cleaned. First, the water supply valve 4 operates to supply a predetermined amount of cleaning water to the cleaning tank 3,
Subsequently, the cleaning pump 5 pressurizes the cleaning water and jets it from the cleaning nozzle 6. At this time, the heating element 7 such as a sheath heater provided in the cleaning tank 3 is energized, and the cleaning process is performed while heating the cleaning water. Further, the temperature sensor 15 detects the temperature of the cleaning tank 3, and when the temperature reaches a predetermined temperature or higher, the power supply to the heating element 7 is stopped.

When the washing process for a predetermined time is completed, the washing water containing dirt is discharged out of the machine by the drainage pump 8, and fresh washing water is supplied. The cleaning pump 5 is operated to inject the cleaning water again from the cleaning nozzle 6 to rinse the object 1 to be cleaned to which the detergent, the residual vegetables, and the like have adhered. After the operation for a predetermined time, the operation of discharging the washing water and supplying the washing water again is repeated, and this rinsing step is continuously performed about three times. Finally, the washing water is discharged out of the machine, and the rinsing step is completed.

Subsequently, a drying step is performed, and by operating the blower 9, the outside air is blown into the washing tank 3 through the blowing path 10 as shown by an arrow in FIG. . At this time, the heating element 7 is energized, and the evaporation of water droplets adhering to the article 1 is promoted by the effects of both air blowing and temperature. Further, during this drying process, the operation of opening and closing the on-off valve 20 is performed several times for a very short time.
Each time the on-off valve 20 is opened, the compressed air 24 stored in the air tank 17 is injected from the injection unit 22 to blow off water droplets attached to the article 1 to be cleaned.

Further, the residual water can be blown off by spraying the residual water accumulated on the thread bottom 25 such as a tea cup. The air pump 18 compresses the air in the air tank 17. When the air tank 17 reaches a predetermined pressure, the operation of the air pump 18 is stopped, and when the pressure is reduced, the operation is restarted. The check valve 21 prevents the flow of air from the air tank 17 to the air pump 18, and prevents the pressure in the air tank 17 from decreasing even when the operation of the air pump 18 is stopped. These drying steps are performed for a predetermined period of time, and the operation of the dishwasher is ended. By this series of steps, the washing and drying of the contaminated object 1 can be performed.

In the drying step, the compressed air 24 stored in the air tank 17 is jetted from the jetting section 22 and used, so that water droplets attached to the article 1 to be washed such as tableware can be blown off, and the water to be evaporated and dried Since the amount can be greatly reduced, the drying speed is dramatically improved. In addition, it takes a long time to dry the residual water accumulated in the thread bottom 25 of the tableware only by blowing air as in the related art, and often does not dry even after 24 hours. However, if the compressed air 24 is used, it can be blown off instantaneously, so that the injection to the yarn bottom 25 is very effective, and the satisfaction after use can be drastically increased.

Also, if the conventional blower 9 is used in combination with the blower 9, large water droplets, which are not easily dried by the blower alone, can be blown off by the compressed air 24, and only small water droplets can be dried by the blower 9, so that the air tank is enlarged. Without drying, efficient drying can be performed.

The capacity of the air tank 17 is several hundred ml.
Even if the pressure is stored as a gauge pressure of about 50 to 200 kPa, the residual water accumulated in the yarn bottom 25 can be reliably blown off. A high pressure (high speed) and high flow rate flow can be easily obtained with a small volume. However, this is not the case if air is blown directly from a blower or air pump. If the air tank 17 is used, if the injection is performed for a very short time of 1 second or less, a flow rate of 0.1
5 m ³ / min, while the injection pressure of about 100kPa is obtained, the degree of the blower normally used for drying air flow 0.3 m ³
/ Min, the pressure is about 0.03 kPa, and the flow rate is large, but the pressure is about 1/3000, and the injection capacity is far lower.

A high-performance turbofan has an advantage that a flow rate of 1.5 m ³ / min and a pressure of about 25 kPa can be obtained, and the injection can be continuously supplied.
Because of the following and large and extremely noisy, it is difficult to mount it on equipment installed in a kitchen. On the other hand, when the air pump is directly used, the pressure can be 100 kPa or more with the air pump of the level used in this embodiment.
The flow rate is 0.001 m ³ / min or less, and it is impossible to blow air at all. It should be noted that, if a large compressor is used, about 0.1 m ³ / min is possible, but it is an industrial apparatus and cannot be mounted on a dishwasher due to its size and noise. Therefore, the air tank 17
With the use of, downsizing and noise reduction can be realized.

Further, if the conventional structure is such that the compressed air is injected from the air duct, the high-speed air can reach only a limited portion near the outlet, and the water droplet cannot be sufficiently blown off. Further, the air tank 17 becomes large in order to spread the cleaning tank 3 as a whole. However, if the jetting portion 22 having a relatively small jetting diameter is used and jetting is performed at a location where the amount of water droplets is large, efficient jetting can be performed, the required amount of air can be reduced, and the size of the air tank 17 can be reduced. Further, by adjusting the injection diameter and angle of the injection unit 22, the injection speed and the injection angle can be set to the optimum state.

Further, since a plurality of jetting parts 22 are provided, water drops and remaining water pools existing at a large number and at a plurality of locations can be efficiently blown off. Further, the number of the yarn bottoms 25 containing only the hot water in which a large amount of residual water is stored is not shown because there are as many as the number of the hot water alone, but there are usually about four, and it is difficult to blow them off with one injection. Therefore, by providing the plurality of injection portions 22, the compressed air 24 can be injected to each yarn bottom portion, and the residual water can be reliably blown off.

The on-off valve 20 is controlled to open and close a plurality of times, so that water drops that could not be blown off by one injection can be blown off without fail. In particular, yarn bottom 2
In order to blow off a large amount of puddle such as residual water in 5 in a single injection, a large injection energy is required, and it is necessary to enlarge the air tank 17 or increase the air pressure.
This leads to an increase in the size of the device. However, even if the energy of one injection is small, the residual water may be blown off by several injections,
By performing a plurality of injections, the air tank 17 can be made smaller, and the device can be made smaller.

In order to store a high pressure with a large capacity, the size of the air compression means 18 is also increased.
By repeating the cycle in which the air tank 17 is pressurized to a predetermined pressure and then jetted again, not only can the air tank 17 be miniaturized, but also the air compression means 18 can be miniaturized. It becomes possible to incorporate it into the main body. Further, even if the injection energy is sufficiently large, the water once blown off may adhere to or accumulate on the object to be cleaned again. By spraying a plurality of times, such re-adhered water can be blown off.

The jetting unit 22 is provided in the vicinity of the wall surface of the cleaning tank 3 and projects little into the cleaning tank 3.
There is no hindrance to taking the article 1 in and out. Also,
Although the washing basket 2 is configured to be used by being pulled out forward with the door 26 opened, the washing basket 2 does not hinder the taking-in / out operation of the washing basket 2, and the tableware 1 and the washing basket 2 come into contact with the injection unit 22. However, there is no possibility that the injection unit 22 is damaged.
In addition, drop of water starts with thread bottom 25 of tableware which was put down,
Injecting the compressed air 24 from the ejecting unit 22 provided near the top surface is very effective for blowing off water droplets because it is likely to accumulate on the top of the article 1 to be cleaned.

The washing basket 2 is provided with a set pin 23 so that bowls such as tea bowls, plates, cups, hot water and the like can be easily set. Usually, the tableware 1 and the like are set at that position. Used. Therefore, when the injection unit 22 is provided above the standard set position, the compressed air 24 can be reliably injected to the object 1 to be cleaned.

In many cases, the cleaning water for cleaning is sprayed from below the cleaning tank 3, but in this structure, the jet does not directly hit the upper surface of the article 1 to be cleaned. Therefore, cleaning tank 3
For example, water is sprayed from below and collided with the top surface, and the water that falls after falling on the top surface is collected and dropped on the upper surface of the tableware 1 to improve the washing and rinsing performance.
If the ejection section 22 is formed in a convex shape, many water drops can be dropped on the upper surface of the cleaning target 1 located below the ejection section 22, and the performance of washing and rinsing can be improved.

Further, the injection section 22 is formed integrally with the wall surface of the cleaning tank 3, so that the number of parts can be reduced. In particular, when the cleaning tank 3 is made of resin, it can be easily integrated. In addition, there is no need to use a seal configuration between the cleaning tank 3 and the injection unit 22, and there is no possibility of water leakage. In addition, as shown in FIG. 2, not only the injection unit 22 but also the air guide path 19 and the air tank 17 can be integrally formed with the cleaning tank 3, so that the apparatus can be simplified.

In this embodiment, since the air pump 18 is provided, even if the air pressure in the air tank 17 is reduced, the compressed air can be immediately supplied to the air tank 17 without replacing the air tank 17. It is possible to perform multiple injections. Also, by using this, the volume of the air tank 17 can be reduced, and the size of the device itself can be reduced.

Since one injection from the air tank 17 is a very short time of one second or less, the amount of outflow from the air tank 17 can be small, and a plurality of injections can be performed. Although the water droplets can be sufficiently blown off by a very short injection, the invention is not limited to the short injection and may be an injection of 1 second or more. Also, the number of injections is not limited to a plurality of injections, but may be only one.

Although the spraying unit is configured to spray the tableware 1, the compressed air 24 is sprayed to the wall of the washing basket 2 and the washing tub 3, so that the water droplets on the washing basket 2 and the wall are sprayed. The amount can be reduced, and the satisfaction after the operation is completed can be increased.

Although the injection unit 22 is arranged above the tableware arrangement, it need not be directly above, but may be in the vicinity of it. Further, as long as the jet air 24 has a spread, the water droplets can be reliably blown off even if the location is not particularly limited. Further, even if the set position of the object 1 to be washed is not specified in the tableware basket 2, water drops can be dropped. In addition, four injection units 22 are provided on the top surface of the washing tank 3, but may be installed at any location such as a back surface, a bottom surface, and a washing basket, and the number is not limited.

Although the jetting section 22 and the cleaning tank 3 are integrally formed, the jetting section may be made of resin and formed as a separate body, such as a stainless steel cleaning tank, to form the jetting section. Sometimes it is easy to do.

Although the air tank 17 is installed separately from the outside of the cleaning tank 3, the air tank 17 may be of any form, and may be installed inside the cleaning tank 3 or formed integrally with the cleaning tank 3. Or you may.

Although an air pump is built in as the air compressing means 18 for compressing the air in the air tank 17, other structures such as a structure that can supply compressed air from the outside and a device that can replace the air tank 17 containing compressed air can be used. It may be a configuration. Although an air pump is used as the air compression means 18, the same effect can be obtained by using other means, such as utilizing the water pressure of feed water or utilizing the heating expansion of gas using a heating device such as a heater. Is obtained.

Although the name of the tank is the air tank 17, the storage fluid is not limited to air, and the same effect can be obtained even if the storage fluid is nitrogen gas, argon gas, or steam such as water vapor.

Although the air tank 17 and the air pump 17 are provided separately, the same effect can be obtained even when they are integrally formed, and the check valve 21 need not be used. Further, the air tank 17, the air pump 18, the on-off valve 20, and the check valve 21 can be integrally formed. The same effect can be obtained even if a plurality of air tanks 17 are provided.

Although only one on-off valve 20 is shown in the figure, a plurality of on-off valves may be used, such as using one on-off valve for each injection unit 22 or providing an on-off valve for every several injection units. When the valve is used, the amount of air released from each injection unit increases, and high injection energy can be obtained.

When the on-off valve 20 is configured to open automatically when the pressure in the air tank 17 reaches a predetermined pressure, the on-off valve 20 acts as a safety valve for preventing the air tank 17 from rising above the predetermined pressure. Safety can be improved. Further, when air is supplied to the air tank 17 by the air compression means 18 as in the present embodiment, the injection is performed if the air pressure is accumulated, and the accumulated pressure is again increased to a predetermined pressure without controlling the opening and closing of the on-off valve 20. Then, the injection and the injection of the compressed air can be automatically performed, and electrical control regarding the injection is not required.

In the present embodiment, an example is shown in which air is injected from the air tank 17 during the drying process. However, by jetting air before the drying process, during the cleaning process, and during the rinsing process, it can be used for cleaning. When the air in the air tank 17 is jetted during the washing and rinsing steps, it acts so as to remove residual vegetables and the like adhering to the article 1 to be washed, thereby improving the washing performance. In addition, after washing, residual vegetables that have reattached to the tableware 1 or the like and remain on the yarn bottom can be blown off, and the performance and satisfaction of cleaning can be improved. In addition, by opening and closing the on-off valve 20 a plurality of times and performing a plurality of injections, it is also possible to use it for both cleaning and injection.

The present invention relates to a system for injecting air from the air tank 17, and does not limit a cleaning system, a configuration, a drying system, or the like. In addition, all the other embodiments show examples in which the present invention is applied to a dishwasher and dryer. However, similar effects can be obtained when the present invention is also applied to a dishwasher and a dishdryer. The same effect can be obtained even if the door is not a table-top type but a built-in type, and the opening / closing direction of the door is not limited to a front opening door, and the same applies to a horizontal opening or an upper opening.

(Embodiment 2) FIG. 3 is a sectional view of a dishwasher according to Embodiment 2 of the present invention, in which the same components as those in Embodiment 1 shown in FIG.

As shown in FIG. 3, a switching valve 27 is provided in the middle of the air guide path 19 for guiding compressed air from the air tank 17 to the injection units 22 and 28, and the injection unit 22 is provided on the top surface of the washing tank. , The injection unit 28 is provided in the washing basket 2. FIG.
The description of the water supply valve 4, the blower 9, and the blow path 10 shown in FIG.

Basically, the same effects as those of the first embodiment can be obtained. Therefore, the description is omitted. However, the jetting unit 28 is provided in the cleaning basket 2, and the object 1 to be cleaned is set in the cleaning basket 2. Therefore, the compressed air 24 can be jetted from the closest distance to the object 1 to be cleaned, and many water droplets can be blown off even with a weak jetting energy. As shown in FIG.
If the air guide path 29 for guiding the compressed air to 8 and the washing basket 2 are integrally formed, there is no hindrance to taking the tableware 1 and the like in and out. Further, the air guide path 29 can also serve as a part of the washing basket 2, and in this case, an increase in the number of parts and an increase in cost can be suppressed.

At the lowest point of the tableware 1, the waterdrops adhered to the tableware 1 gather and remain until the end of the drying process. In addition, since the residual water at the contact point between the washing basket 2 and the tableware 1 is hard to dry, the spraying from below is very effective for removing water droplets. However, there is a washing nozzle 6 for spraying washing water below the washing basket 2 and water is accumulated in the washing tank 3 during washing. Injecting the air 24 is difficult. Therefore, as in the present embodiment, by providing the washing unit 2 with the spraying unit 28, the compressed air 24 can be easily sprayed to the lowest point of the tableware 1 or the point of contact with the washing basket 2 and drying. It greatly contributes to speed improvement.

Further, a switching valve 27 for switching the flow of the compressed air is provided, and the number of the injection sections to be injected is switched by opening / closing the on-off valve once instead of simultaneously injecting from all the injection sections 22 and 28. It has a configuration. When the air tank 17 is small, if simultaneous injection is performed from a plurality of injection units, the amount of air injected from one injection unit, that is, the amount of energy, becomes small, and it becomes impossible to fly water droplets sufficiently. By using 27, it is possible to reduce the number of injection points by one opening and closing of the on-off valve 20 and increase the amount of air injected from the individual injection units 22 and 28, so that water droplets can be sufficiently blown. After the on-off valve 20 is opened, compressed air is stored in the air tank 17, and when a predetermined pressure is reached, the switching valve 27 is switched and the on-off valve 20 is opened again, without increasing the capacity of the air tank 17. , The number of injection units can be increased,
This leads to downsizing of the device.

In the figure, two systems are switched. For example, in the case of performing injection from a five-system injection unit, five on-off valves are required. However, if a switching valve is used, only one on-off valve is required.

It is also possible to detect the place where the tableware 1 is placed or the place where water droplets remain, and to inject compressed air only to that part, so that efficient and efficient injection can be performed. . In addition, since the number of injections can be reduced, the number of times of noise generated due to the opening and closing of the on-off valve 20 and the injection decreases,
It is possible to reduce troublesome driving noise.

The connecting portion 3 between the air guide passage 29 and the washing tank 3
0 is detachable, the door 2
At the time of opening 6, the washing basket can be pulled out and used, so that the usability is not impaired.

(Embodiment 3) FIG. 4 is a cross-sectional view of a dishwasher according to Embodiment 3 of the present invention, in which the same components as those in Embodiment 1 shown in FIG.

As shown in FIG. 4, in the present embodiment, a switching valve 27 is provided in the middle of the air guide path 19 for guiding the compressed air from the air tank to the injection section, and the injection section 22 is provided near the top surface of the cleaning tank. ,
The injection unit 31 is provided at a position protruding from the wall surface. The description of the water supply valve 4, the blower 9, and the blowing path 10 shown in FIG. 1 is omitted.

The same effect as that of the first embodiment can be obtained. However, the jetting unit 31 is provided so as to protrude from the wall surface of the cleaning tank 3, and is configured to remove water droplets adhered to the article 1 to be cleaned near the center of the cleaning tank 3. The compressed air 24 can also be jetted from a very short distance, and this water droplet can be reliably dropped.

If the distance between the compressed air injection unit 22 and the water droplet is large, the energy of the injection is significantly reduced, and the water droplet is difficult to fly. Therefore, in order to blow a distant water droplet,
It is necessary to use a large air tank 17 or to increase the air pressure. However, if the jetting unit 31 is provided so as to protrude from the wall surface of the cleaning tank 3, the compressed air 24 can be jetted from a short distance even to water droplets attached to the object 1 to be cleaned near the center of the cleaning tank 3. In addition, all water droplets in the cleaning tank 3 can be blown off without increasing the size of devices such as the air tank 17 and the air pump 18. As shown in the figure, the washing basket 2 on which the tableware 1 is set has many upper and lower stages, and the top of the tableware stored in the lower stage where water droplets easily adhere is located in the center of the washing tank 3, A large amount of water droplets accumulated in this portion can be easily blown off.

Further, when the jetting unit is provided in the washing basket 2, a sealing structure of the attaching / detaching unit is required, but when the jetting unit is protruded from the washing tank, no special structure is required.

(Embodiment 4) FIG. 5 is a sectional view of a dishwasher according to Embodiment 4 of the present invention, and the same reference numerals are given to the same components as those in Embodiment 1 shown in FIG.

As shown in FIG. 5, in the present embodiment, the injection units 32 and 33 have a configuration in which the injection direction can be changed, and an electric motor is provided as an injection direction changing unit 34 for changing the direction of the injection unit 32. . Further, the injection unit 33 is configured so that the injection unit swings by the injection force of the compressed air 24 by itself.

The injection section 32 is rotated by the electric motor 34, so that the compressed air 24 can be injected from a single injection section 32 over a wide range, and the number of injection sections can be reduced. Further, even when the tableware 1 is set at a position other than the standard specified position, the water droplets attached to the tableware 1 can be reliably blown off.

The jetting section 33 is a tubular body formed of an elastic body, and automatically swings with the jetting of air, jetting compressed air over a wide range, and can blow off water droplets. It should be noted that the same effect can be obtained by rotation or the like other than swinging.

The injection direction changing means 34 is not limited to the electric motor, but may be any structure capable of changing the injection direction, and may be an electric device such as a solenoid or an air cylinder using air from an air tank. Similar effects can be obtained.
Further, a structure that can be adjusted and fixed by hand may be used.

[0085]

As described above, according to the present invention, a cleaning tank for storing an object to be cleaned, an air tank for storing compressed air, an on-off valve for opening and closing the air tank, and cleaning of air in the air tank. A spray unit that sprays water into the cleaning tank, and sprays the compressed air stored in the air tank into the cleaning tank to blow off water droplets attached to the object to be cleaned. , The effect of improving the drying performance and shortening the drying time can be obtained.
In addition, by using an air tank, a high-speed and high-flow flow can be easily obtained even with a small device, and residual water accumulated at the thread bottom of tableware can be reliably blown off.

Further, by providing a plurality of injection portions, water droplets remaining at a large number and at a plurality of locations can be efficiently blown off. Further, when a switching valve for switching the flow of the compressed air is provided, the amount of air, that is, the amount of energy injected from each of the injection units can be increased, and water droplets can be sufficiently blown. Further, the size of the air tank can be reduced.

When the on-off valve is opened and closed a plurality of times, water drops that could not be blown off by a single injection can be reliably blown off.

When the jetting unit is provided in the vicinity of the wall surface of the washing tub, the projection into the washing tank is small. There is no danger of the jet part being damaged by the contact of the nozzle.

When the jetting section is provided so as to protrude from the wall surface of the cleaning tank, compressed air can be jetted from a short distance to water droplets attached to the object to be cleaned near the center of the cleaning tank. All water droplets in the cleaning tank can be blown off without increasing the size of the apparatus.

When a washing basket for setting an object to be washed is provided in the washing tank, and the jetting unit is provided in the washing basket, compressed air can be jetted from the closest distance to the object to be washed.
Many droplets can be blown off even with a weak injection energy.

Further, when the jetting unit is provided above the set position of the object to be cleaned, the compressed air can be reliably jetted to the object to be cleaned, and the washing water during cleaning is supplied to the jetting unit. Since many water drops are collected and dropped on the upper surface of the object to be cleaned located below the jetting unit, the cleaning and rinsing performance can be improved.

When the injection direction of the injection unit is variable, compressed air can be injected from one injection unit over a wide range, and the number of injection units can be reduced.

Further, when the injection unit is formed integrally with the cleaning tank, the number of parts can be reduced, and there is no danger of water leakage even without using a seal structure between the cleaning tank and the injection unit.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a dishwasher / dryer according to a first embodiment of the present invention.

FIG. 2 is a sectional view of another dishwasher / dryer of the first embodiment.

FIG. 3 is a sectional view of a dishwasher according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a dishwasher according to a third embodiment of the present invention.

FIG. 5 is a sectional view of a dishwasher according to a fourth embodiment of the present invention.

FIG. 6 is a cross-sectional view of a conventional dishwasher and dryer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 To-be-washed thing (tableware etc.) 3 Cleaning tank 17 Air tank 18 Air pump (air compression means) 20 On-off valve 22, 28, 31, 32, 33 Injection part 27 Switching valve

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaki Yura 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 3B082 EE03

Claims (10)

[Claims] 1. A cleaning tank for storing an object to be cleaned, an air tank for storing compressed air, an on-off valve for opening and closing the air tank, and an injection unit for injecting air from the air tank into the cleaning tank. Dishwasher and dryer. 2. The dishwasher / dryer according to claim 1, wherein a plurality of injection units are provided. 3. The dishwasher / dryer according to claim 1, further comprising a switching valve for switching a flow of the compressed air. 4. The on-off valve opens and closes a plurality of times.
The dishwasher / dryer according to any one of claims 1 to 3. 5. The dishwasher / dryer according to claim 1, wherein the injection unit is provided near a wall surface of the washing tank. 6. The dishwasher / dryer according to claim 1, wherein the injection unit protrudes from a wall surface of the washing tank. 7. The dishwasher / dryer according to claim 1, wherein a washing basket for setting an object to be washed is arranged in a washing tank, and an injection unit is provided in the washing basket. 8. A cleaning basket for setting an object to be cleaned in a cleaning tank, wherein the cleaning basket has a configuration in which a rough set position of the object to be cleaned is determined, and an injection unit is provided above the set position. A dishwasher / dryer according to any one of claims 1 to 7. 9. The dishwasher / dryer according to claim 1, wherein the spraying section has a variable spraying direction. 10. The dishwasher / dryer according to claim 1, wherein the injection unit is formed integrally with the washing tank.