JPH08332167A - Dishwasher - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a dishwasher that drives a washing pump and a blower fan with a single electric motor and cools the electric motor in a more space-saving configuration. [Structure] This dishwasher / dryer includes a washing tank 1, a dish basket 9 for storing dishes and the like, a washing pump 4 for circulating washing water in the washing tank, and an electric motor 5 for driving the washing pump 4. Blower fan 6, cleaning nozzle 7 having an injection hole for spraying cleaning water on dishes and the like, blower port 14 opened inside the cleaning tank, intake port 18 opened outside the machine, said blower port 14 and intake air A blower path 15 that connects the ports to each other, and the electric motor 5 and the blower fan 6 are internally provided in the blower path 15, and a ventilation port that connects the outside to the blower path that communicates the interior part with the blower port. 16 is provided, and a valve 17 that opens and closes the ventilation path is provided in the ventilation path between the ventilation port 14 and the ventilation port 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dish washer / dryer in which a cleaning pump and a blower fan are driven by a single electric motor and the electric motor is cooled in a space-saving configuration.

[0002]

2. Description of the Related Art A conventional dishwasher / dryer will be described below.

As shown in FIG. 10, a conventional dishwasher / dryer is one in which a dish basket 31 containing a dish 30 and the like is stored in a predetermined place, and then a detergent is added to start the operation.

When the operation is started, first the water supply valve 26
Operates to supply the cleaning water 27 to the cleaning tank 25. Then, whether or not a predetermined amount of cleaning water 27 is supplied is detected by a supply amount detector (not shown) of the cleaning water 27, and if the predetermined amount of cleaning water 27 is supplied, the operation of the water supply valve 26 is terminated. Then, the supply of the cleaning water 27 is completed. Subsequently, the washing pump 28 pressurizes the washing water 27 and sprays it with the detergent from the washing nozzle 29. Thus, the cleaning process is performed. In this cleaning step, the heating element 32 provided in the cleaning tank 25 is energized to heat the cleaning water 27 to a predetermined cleaning temperature.

After a washing process for a predetermined time, the dishes 3
The wash water 27 containing dirt washed off from 0 etc. is discharged to the outside of the machine by the drainage pump 33. Subsequently, the cleaning water 27 is newly supplied and jetted again from the cleaning nozzle 29,
A step of rinsing the dishware 30 and the like that are soiled with a detergent or a residual food (food that has adhered to the dishware as dirt is called a residual food) is executed. When this rinsing step is completed, the cleaning water 27 is discharged to the outside of the machine again. This rinse step is repeated 3 times in succession. At this time, the residual food is collected in the filter 34 provided in the cleaning tank 25.

When the rinsing step is completed, the heating element 32 is energized to start the drying step of drying the dishes 30 and the like. In this drying process, the air outside the machine is blown by the blower 35.
It is sent to and heated. Then, the heated air is supplied to the washing tank 25 to dry the dishes 30 and the like, and the exhaust port 3
It is discharged from 6 through the machine. When the drying process for a predetermined time is completed, the tableware 30 and the like are dried. In this way, the operation of the dishwasher is completed.

[0007]

However, the conventional dishwasher / dryer has the following problems.

In the conventional dishwasher / dryer, a washing pump 28 for pressurizing the washing water 27 to inject the washing water 27 from the washing nozzle 29, a drainage pump 33 for discharging the washing water 27 to the outside of the machine, and air outside the machine are provided. Blower 35 supplied to the cleaning tank 25
There is a washing pump 28, a drainage pump 33, and a blower 35.
Are provided with electric motors 40, 41, 42 for driving the pumps 37, 38 and the blower fan 39, respectively. Therefore, since the dishwasher / dryer is equipped with three electric motors, there is a problem in that the dishwasher / dryer cannot be constructed in a space-saving and low-cost manner.

Therefore, in order to solve the problem of the conventional structure as described above, the inventors have provided a blower fan 43 on the electric motor 40 for driving the washing pump 28 as shown in FIG. Proposal to provide a dishwasher / dryer in which a blower fan 43 is installed inside a blower path 44 that connects the washing tank 25 to the outside (Japanese Patent Application No. 62-238063, etc.)
are doing. With such a configuration, the washing pump 28 operates in the washing and rinsing steps by driving the electric motor 40, the washing water 27 is sprayed from the washing nozzle 29 to wash the dishes 30, and the blower fan 43 operates in the drying step. By operating, the outside air is supplied into the cleaning tank 25 through the ventilation path 44 to dry the dishes 30 and the like.

The configuration shown in FIG. 11 has the following problems. That is, the fan 45 for cooling the electric motor 40 is provided between the electric motor 40 and the blower fan 43 to cool the electric motor 40. However, in this structure, the cleaning pump 28 has two fans. The cleaning pump 28 cannot be configured to save space. Further, the blower fan 43 for blowing the air outside the machine into the cleaning tank 25 and the blower path 44 obstruct the electric motor 40.
Since it is difficult to supply air to the electric motor 40, the electric motor 40 cannot be cooled efficiently. On the other hand, if an electric motor that does not need to be cooled during driving is used, as shown in FIG.
Since the fan 45 that cools the electric motor 40 can be removed, the cleaning pump 28 can have a space-saving structure. However, with this configuration, the conventional electric motor 40, which requires cooling during driving, cannot be used, so that the cleaning pump 28 cannot be configured at low cost.

In view of the above problems, it is a first object of the present invention to make the cleaning pump more space-saving and to cool the electric motor driving the cleaning pump.

A second object is to open and close the air blowing path without controlling the valve that opens and closes the air blowing path in each of the steps of cleaning, rinsing and drying.

A third object is to detect and control the amount of wash water supplied without separately providing a water supply amount detector.

A fourth object is to open and close the air flow path without providing a valve for opening and closing the air flow path.

[0015]

In order to achieve the first object, the first means of the present invention is to circulate a washing tank, a tableware basket for storing dishes and the like, and washing water in the washing tank. A washing pump, an electric motor for driving the washing pump, a blower fan, a washing nozzle having an injection hole for injecting washing water to dishes and the like, a blowing port opened in the washing tank, and an intake air opened outside the machine. A blower path that connects the blower port and the intake port, the electric motor and the blower fan are installed inside the blower path, and the outside is connected to the blower path that connects the interior part and the blower port. (EN) A dishwasher / dryer having a ventilation opening and a valve for opening and closing the ventilation path in the ventilation path between the ventilation openings.

Further, in order to achieve the second object, the second means of the present invention is, in addition to the first means, a float that moves up and down depending on the water level of the washing water and a buoyancy of the float as a driving source. A dishwasher / dryer characterized by having a valve for opening and closing a path.

Further, in order to achieve the third object, the third means of the present invention is, in addition to the second means, an element for detecting the supply amount of washing water by using the buoyancy of the float as a driving source, and the element. According to another aspect of the present invention, there is provided a dishwasher / dryer characterized in that a control device having means for controlling the supply of wash water is provided.

Further, in order to achieve the fourth object, the fourth means of the present invention is characterized in that, in addition to the first means, a blower port is provided below the water level of the washing water in the washing step. Is to provide a dishwasher and dryer.

[0019]

In the first means of the present invention, the electric motor for driving the cleaning pump and the blower fan are provided inside the blower path, and a ventilation port is provided to connect a part of the blower path to the outside of the blower, and the blower path is blown. By providing a blower valve that opens and closes the path, in the washing and rinsing process, the washing pump operates by driving the electric motor to perform washing. At this time, the blowing fan also operates. Therefore, since the air outside the machine is supplied to the electric motor, the electric motor that is generating heat by driving is cooled. When the blower valve is de-energized, the air outside the machine, which has cooled the electric motor, is not supplied into the cleaning tank through the blower path and the blower opening, but is discharged to the outside from the blower opening.

Further, in the drying process, the blower fan operates by driving the electric motor. At this time as well, since air outside the machine is supplied to the electric motor, the electric motor which is generating heat by driving is cooled. Then, by energizing the blow valve, the outside air that has cooled the electric motor is supplied into the cleaning tank through the blow path and the blow port. At this time, since the air outside the machine is heated by the electric motor when the electric motor is cooled, it becomes hot air and is supplied to the washing tank, dishes, etc. to heat and dry the dishes, etc. Therefore, the heat generated by the electric motor can be used for drying dishes and the like.

As described above, the blower fan can be operated by the electric motor for operating the washing pump, and the electric motor can be surely cooled in each step of washing, rinsing and drying, so that the washing pump has a space-saving structure. The blower fan can be driven by one electric motor. And
The electric motor can be reliably cooled, and the heat generated by the electric motor in the drying process can be used for drying dishes and the like.

Further, in the second means, by providing an opening / closing valve for opening and closing the air blowing path by using the buoyancy of the float as a drive source, the cleaning water is supplied and the float rises in the cleaning and rinsing steps. When the float rises, the on-off valve operates and closes the ventilation path. Therefore, the air that has cooled the electric motor by the operation of the blower fan is discharged to the outside of the machine from the ventilation port when it is sent to the blower path.

In the drying process, the float does not rise because the washing water is not supplied. Therefore, since the opening / closing valve opens the ventilation path, the air that has cooled the electric motor by the operation of the ventilation fan is supplied to the cleaning tank, dishes, etc. through the ventilation path and the ventilation port.

Therefore, since the opening / closing valve operates by using the buoyancy of the float as a driving source to open / close the air blowing path, it is possible to control the opening / closing valve opening / closing the air blowing path in each step of cleaning, rinsing and drying. The air flow path can be opened and closed with a simple configuration.

Further, in the third means, by providing an element for detecting the amount of wash water supplied by using the buoyancy of the float as a drive source and a controller for controlling the supply of wash water by this element, In the washing and rinsing process, washing water is supplied, the float rises, and the on-off valve operates. Then, when a predetermined amount of cleaning water is supplied, the opening / closing valve closes the blower opening due to the rise of the float. At this time, the switch of the element that detects the water supply amount by the operation of the open / close valve is turned on.
Therefore, the control device determines that the predetermined amount of cleaning water has been supplied, terminates the supply of cleaning water, and drives the electric motor to drive the cleaning pump. Therefore, the buoyancy of the float can be used as a driving source to detect the amount of wash water supplied, and the water supply can be terminated.

Therefore, since the predetermined water supply amount can be detected only by providing the element for detecting the supply amount of the cleaning water in the vicinity of the on-off valve, it is not necessary to separately provide a device for detecting the supply amount of the cleaning water. It is possible to detect and control the supply amount of wash water with a low cost, a space-saving and a simple configuration.

Further, in the fourth means, the blower port is provided below the water level of the wash water in the washing process, so that the wash water blocks the blower port in the washing and rinsing process. Therefore, the air that has cooled the electric motor by the operation of the blower fan is not supplied to the inside of the cleaning tank through the blower path and the blower port, but is discharged from the blower port to the outside of the machine.

Further, in the drying step, since the washing water is discharged to the outside of the machine, the air that has cooled the electric motor by the operation of the blower fan is supplied to the washing tank, dishes, etc. through the blower port and the blower path. .

Therefore, since the blowing path can be opened and closed by the water level of the washing water, it is not necessary to provide a valve in the blowing path, and the blowing path can be opened and closed with a low cost and a simple structure. .

[0030]

【Example】

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a cleaning tank, 2 is cleaning water 3
A water supply valve 4 for supplying water into the cleaning tank 1 is a cleaning pump, and an electric motor 5 for driving the cleaning pump 4 is provided with a blower fan 6. A cleaning nozzle 7 is provided with a plurality of spray holes 8 for spraying the cleaning water 3. Reference numeral 9 is a tableware basket that stores the tableware 10 and the like in the cleaning tank 1, 11 is a drainage pump that discharges the cleaning water 3, 12 is a filter that collects leftovers, and 13 is a heating element. Reference numeral 14 denotes a blower port for supplying the air outside the machine to the inside of the cleaning tank 1, and reference numeral 15 denotes a blower path connecting the blower port 14 and the outside of the machine. Inside the blower path 15, the electric motor 5 and the blower fan 6 are installed. 16 is a ventilation port that connects the ventilation path 15 to the outside of the machine, 17 is a ventilation valve that opens and closes the ventilation path, and the ventilation port 14
It is provided in the ventilation path 15 between the ventilation port 16 and the ventilation port 16. 18
Is an intake port and 19 is an exhaust port.

The operation of the above configuration will be described below. Put a predetermined amount of detergent into the washing tank 1 and
0 is stored in the tableware basket 9 and the operation is started. Here, the cleaning water 3 is supplied by first energizing the water supply valve 2. When the wash water 3 reaches a predetermined amount, the electric motor 5 is driven and the wash pump 4 operates. When the cleaning pump 4 operates, the cleaning water 3 containing detergent is pressurized and supplied to the cleaning nozzle 7, and the cleaning water 3 is sprayed from the spray holes 8 provided in the cleaning nozzle 7. In this way, the washing process of washing the tableware 10 and the like is performed. In this cleaning process, the heating water 13 is heated to heat the cleaning water 3 to a predetermined temperature. After the cleaning process for a predetermined time, the cleaning water 3 containing dirt and the like washed off from the tableware 10 and the like is drained by the drainage pump 11. Then, the washing water 3 is newly supplied to the washing nozzle 7
A step of rinsing the dishes 10 and the like contaminated with detergents and leftovers is performed by spraying from the spray holes 8 provided in the. After completion of this step, the wash water 3 is discharged out of the machine. Also in this step, the cleaning water 3 is rinsed by the heating element 13 and heated to a predetermined temperature. Then, this process is repeated three times in succession to complete the rinsing process. The leftover food is the filter 1 provided in the cleaning tank 1.
Collected within 2. After the rinsing process is completed, the process proceeds to the drying process.

In the drying process, as shown in FIG.
The air blower fan 6 operates by driving, and the outside air is sent into the cleaning tank 1 through the air blow passage 15. Then, the outside air supplied to the washing tank 1 dries the washed tableware 10 and the like and is discharged to the outside of the machine through the exhaust port 19. In this way, the dishes 10 and the like are dried for a predetermined time, the drying process is finished, and the operation of the dishwasher is finished.

According to the first embodiment of the present invention thus constructed, as shown in FIG. 1, in the cleaning and rinsing process, the cleaning pump 4 is operated by driving the electric motor 5 to perform cleaning. However, the blower fan 6 also operates at this time. Therefore, the air outside
Since it is supplied from 8 to the electric motor 5, the electric motor 5 which is generating heat by driving is cooled. And the blow valve 1
The air outside the machine, which is obtained by cooling the electric motor 5 by deenergizing the electric motor 7, is supplied to the cleaning tank 1 through the air passage 15 and the air outlet 14.
It is not supplied inside, but is discharged out of the machine through the ventilation port 16.

In the drying step, the blower fan 6 operates by driving the electric motor 5 as shown in FIG. Also at this time, the air outside the machine is supplied to the electric motor 5 from the intake port 18, so that the electric motor 5 which is generating heat by driving is also cooled in the drying step. And
The air outside the machine, which has cooled the electric motor 5 by energizing the blower valve 17, is supplied into the cleaning tank 1 through the blower path 15 and the blower port 14. At this time, the air outside the machine cools the electric motor 5 and is heated by the electric motor 5 at the same time as it is heated by the electric motor 5 to be supplied to the cleaning tank 1 and the dishes 10 to heat the dishes 10 and the like. And then dried. Therefore, the heat generated by the electric motor 5 can be used for drying the tableware 10 and the like.

From the above, the blower fan 6 can be operated by the electric motor 5 for operating the cleaning pump 4, and the electric motor 5 can be surely cooled in each step of cleaning, rinsing and drying, so that space saving is achieved. With the configuration, the cleaning pump 4 and the blower fan 6 can be driven by one electric motor 5. Then, the electric motor 5 can be reliably cooled, and the heat generated by the electric motor 5 in the drying process can be used for drying the tableware 10 and the like.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings. The overall structure is the same as that of the first embodiment, so the explanation is omitted. However,
In FIG. 3 and FIG. 4, 20 is an opening / closing valve that opens and closes the blowing path 15, and 21 is a float. When the cleaning water 3 is supplied, the float 21 moves up to operate the opening / closing valve 20.

According to the second embodiment of the present invention thus constructed, in the cleaning and rinsing process, as shown in FIG. 3, the cleaning water 3 is supplied to raise the float 21. When the float 21 rises, the on-off valve 20 operates to close the air blowing path 15. Therefore, the air that has cooled the electric motor 5 by the operation of the blower fan 6 is discharged to the outside of the machine from the ventilation port 16 when being sent to the blower path 15.

Further, in the drying step, as shown in FIG. 4, the float 21 does not rise because the cleaning water 3 is not supplied. Therefore, the on-off valve 20 opens the ventilation path 15.
Therefore, the air that has cooled the electric motor 5 by the operation of the blower fan 6 is supplied to the cleaning tank 1, the dishes 10, and the like via the blower path 15 and the blower port 14.

Therefore, since the opening / closing valve 20 operates by using the buoyancy of the float 21 as a drive source to open / close the blowing path 15, the opening / closing valve 20 for opening / closing the blowing path 15 in each step of cleaning, rinsing and drying. The blower path 15 can be opened and closed with a simple configuration without controlling.

(Embodiment 3) A third embodiment of the present invention will be described below with reference to the drawings. The overall structure is the same as that of the first and second embodiments, and the description is omitted.
However, in FIGS. 5 and 6, 22 is a water supply amount detecting element,
23 is a switch of the water supply amount detecting element 22, 24 is a wash water 3
In the control device for controlling the water supply of the above, the switch 23 of the water supply amount detecting element 22 is turned on by the operation of the opening / closing valve 20,
It will be FF. Then, the water supply amount detection element 22 is turned on.
Then, the control device 24 determines that the cleaning water 3 has been supplied in a predetermined amount and terminates the supply of the cleaning water 3.

According to the third embodiment of the present invention thus constructed, in the cleaning and rinsing process, as shown in FIG. 6, the cleaning water 3 is supplied to raise the float 21,
The on-off valve 20 operates. Then, when the cleaning water 3 is supplied in a predetermined amount, the opening / closing valve 20 closes the blower port 15 due to the rise of the float 21. At this time, the switch 23 of the water supply amount detection element 22 is turned on by the operation of the opening / closing valve 20, so that the control device 24 determines that the predetermined amount of the cleaning water 3 has been supplied and terminates the supply of the cleaning water 3 and the electric motor 5 is driven to drive the cleaning pump 4. Therefore, the supply amount of the wash water 3 can be detected by using the buoyancy of the float 21 as a drive source.

Therefore, since the predetermined water supply amount can be detected only by providing the water supply amount detecting element 22 in the vicinity of the on-off valve 20, there is no need to separately provide a device for detecting the water supply amount of the wash water 3, and the low water supply amount can be achieved. It is possible to detect and control the water supply amount of the cleaning water 3 at a cost, in a space-saving and with a simple configuration.

As shown in FIG. 7, a water supply amount detecting element 22 may be provided near the float 21 to detect the water supply amount of the cleaning water 3.

(Embodiment 4) A fourth embodiment of the present invention will be described below with reference to the drawings. The overall structure is the same as that of the first embodiment, so the explanation is omitted. However,
8 and 9, the blower port 14 is provided at a position lower than the water level of the cleaning water 3 during the cleaning and rinsing process.

According to the fourth embodiment of the present invention thus constructed, in the washing and rinsing process, as shown in FIG. 8, the blower port 14 is provided at a position lower than the water level of the washing water 3. Therefore, the cleaning water 3 blocks the blower port 14. Therefore, the air that has cooled the electric motor 5 by the operation of the blower fan 6 is not supplied into the cleaning tank 1 through the blower path 15 and the blower opening 14, but is discharged from the blower opening 16 to the outside of the machine.

In the drying process, as shown in FIG. 9, the cleaning water 3 is discharged to the outside of the machine, so that the air that has cooled the electric motor 5 by the operation of the blower fan 6 is blown out from the blower port 14.
And is supplied to the cleaning tank 1, the dishes 10 and the like via the air passage 15. Therefore, since the blowing path 15 can be opened / closed by the water level of the cleaning water 3, it is not necessary to provide a valve in the blowing path 15, and the blowing path 15 can be opened / closed with a low cost and a simple configuration. it can.

[0048]

As described above, according to the present invention, the washing tank, the dish basket for storing dishes and the like, the washing pump for circulating the washing water in the washing tank, the electric motor for driving the washing pump, and the cooling of the electric motor. Fan, a cleaning nozzle having an injection hole for spraying cleaning water to dishes, a ventilation port for injecting air outside the machine into the cleaning tank, and a ventilation path connecting the ventilation port and the outside of the machine. And, by providing a ventilation fan inside the ventilation path, providing a ventilation port that connects a part of the ventilation path and the outside of the machine, and having a ventilation valve that opens and closes the ventilation path in the ventilation path between the ventilation port, In the cleaning and rinsing process, the cleaning pump is operated by driving the electric motor to perform cleaning, and at this time, the blower fan also operates. Therefore, since the air outside the machine is supplied to the electric motor, the electric motor which is generating heat by driving is cooled. When the blower valve is de-energized, the air outside the machine, which has cooled the electric motor, is not supplied into the cleaning tank through the blower path and the blower opening, but is discharged to the outside from the blower opening.

In the drying process, the blower fan operates by driving the electric motor. At this time as well, the air outside the machine is supplied to the electric motor, so that the electric motor that is generating heat by driving is cooled. Then, by energizing the blow valve, the outside air that has cooled the electric motor is supplied into the cleaning tank through the blow path and the blow port. At this time, since the air outside the machine is heated by the electric motor when the electric motor is cooled, it becomes hot air and is supplied to the washing tank, dishes, etc. to heat and dry the dishes, etc. Therefore, the heat generated by the electric motor can be used for drying dishes and the like.

As described above, the blower fan can be operated by the electric motor for operating the cleaning pump, and the electric motor can be surely cooled in each step of cleaning, rinsing and drying, so that the cleaning pump has a space-saving structure. The blower fan can be driven by one electric motor. And
It is possible to provide a dishwasher that can reliably cool the electric motor and can use the heat generated by the electric motor in the drying process to dry dishes and the like.

Further, according to the present invention, by providing the opening / closing valve for opening / closing the air blowing path by using the buoyancy of the float as a drive source, the washing water is supplied in the washing and rinsing steps to raise the float. When the float rises, the on-off valve operates and closes the ventilation path. Therefore, the air that has cooled the electric motor by the operation of the blower fan is discharged to the outside of the machine from the ventilation port when it is sent to the blower path.

In the drying process, the float does not rise because the washing water is not supplied. Therefore, since the opening / closing valve opens the ventilation path, the air that has cooled the electric motor by the operation of the ventilation fan is supplied to the cleaning tank, dishes, etc. through the ventilation path and the ventilation port.

Therefore, since the opening / closing valve operates by using the buoyancy of the float as a driving source to open / close the air blowing path, it is possible to control the opening / closing valve opening / closing the air blowing path in each step of cleaning, rinsing and drying. It is possible to provide a dishwasher that can open and close the ventilation path with a simple configuration.

The present invention also provides a cleaning and rinsing process by providing an element for detecting the amount of wash water supplied using the buoyancy of the float as a drive source and a control device provided with means for controlling the supply of wash water by this element. At, the flush water is supplied, the float rises, and the on-off valve operates. And
When a predetermined amount of washing water is supplied, the on-off valve closes the blower opening due to the rise of the float. At this time, since the switch of the element that detects the water supply amount is turned on by the operation of the opening / closing valve, the control device determines that a predetermined amount of cleaning water has been supplied, terminates the supply of cleaning water, and drives the electric motor. Drive the wash pump. Therefore, the buoyancy of the float can be used as a driving source to detect the amount of wash water supplied, and the water supply can be terminated.

Therefore, since the predetermined water supply amount can be detected only by providing the element for detecting the supply amount of the cleaning water in the vicinity of the on-off valve, it is not necessary to separately provide a device for detecting the supply amount of the cleaning water. It is possible to provide a dishwasher which is low in cost, space-saving, and can detect and control the supply amount of wash water with a simple configuration.

Further, according to the present invention, the blower port is provided below the water level of the wash water in the washing process, so that the wash water blocks the blower port in the washing and rinsing process. Therefore, the air that has cooled the electric motor by the operation of the blowing fan is not supplied into the cleaning tank through the blowing path and the blowing port,
It is discharged from the ventilation port to the outside of the machine.

Further, in the drying step, since the washing water is discharged to the outside of the machine, the air which has cooled the electric motor by the operation of the blower fan is supplied to the washing tank, dishes, etc. through the blower port and the blower path. .

Therefore, since the blowing path can be opened and closed by the water level of the washing water, it is not necessary to provide a valve in the blowing path, and the blowing path can be opened and closed with a low cost and a simple structure. A dishwasher can be provided.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of a drying process of the dishwasher according to the first embodiment of the present invention.

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

FIG. 4 is a partial vertical sectional view showing a drying process of the dishwasher according to the second embodiment of the present invention.

FIG. 5 is a vertical sectional view of a dishwasher / dryer according to a third embodiment of the present invention.

FIG. 6 is a vertical cross-sectional view showing the washing process of the dishwasher according to the third embodiment of the present invention.

FIG. 7 is a partial vertical cross-sectional view around a ventilation path of a dishwasher according to a third embodiment of the present invention.

FIG. 8 is a partial longitudinal sectional view of a dishwasher / dryer according to a fourth embodiment of the present invention.

FIG. 9 is a partial vertical cross-sectional view showing a drying process of a dishwasher according to a fourth embodiment of the present invention.

FIG. 10 is a vertical sectional view of a conventional dishwasher / dryer.

FIG. 11 is a vertical sectional view of another conventional dishwasher / dryer.

FIG. 12 is a vertical sectional view of another conventional dishwasher / dryer.

[Explanation of symbols]

 1 Cleaning Tank 3 Cleaning Water 4 Cleaning Pump 5 Electric Motor 6 Blower Fan 7 Cleaning Nozzle 8 Injection Hole 13 Heating Element 14 Blower Port 15 Blower Route 16 Vent Port 17 Blower Valve 20 Open / Close Valve 21 Float 22 Water Supply Detection Element 24 Control Device

Claims (4)

[Claims] 1. A washing tank, a basket for storing dishes and the like, and a washing pump for circulating the washing water in the washing tank,
An electric motor that drives the cleaning pump, a blower fan, and a cleaning nozzle having a spray hole that sprays cleaning water onto dishes and the like,
A blower opening opened in the cleaning tank, an intake opening opened outside the machine, and a blower path connecting the blower opening and the intake opening,
An electric motor and the blower fan are installed inside the blower path,
A dishwasher having a ventilation port that connects the exterior to a ventilation path that connects the interior part and the ventilation port, and has a valve that opens and closes the ventilation path between the ventilation port and the ventilation port. 2. The dishwasher / dryer according to claim 1, further comprising a float that moves up and down depending on the level of the wash water, and a valve that opens and closes a ventilation path by using the buoyancy of the float as a drive source. 3. The dishwasher / dryer according to claim 2, further comprising an element for detecting the amount of wash water supplied by using the buoyancy of the float as a drive source, and a control device having means for controlling the supply of wash water by the element. . 4. The dishwasher / dryer according to claim 1, wherein the ventilation port is provided below the water level of the washing water in the washing step.