JP2003038407A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher restrained in leakage of drops caused in a discharge port by a high temperature and high humidity discharge air during drying operation. SOLUTION: The terminal end of the discharge port 4 provided on a front door 3 of the dishwasher is provided with a slit 4a formed substantially horizontally with the upstream side of discharge air a little inclined downward. The start end of the discharge port 4 is also provided with a slit 4b. Dew drops adhering to the surfaces of the slits 4a, 4b flow along the inclined surfaces of the slits 4a, 4b into a washing vessel, so that adhering water will not remain in the discharge port 4 so as to enough secure a discharge area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwashing apparatus having a mechanism for supplying outside air into a washing tank to dry dishes after the washing process.

[0002]

2. Description of the Related Art Conventionally, in a dishwasher equipped with a washing tank, after the washing and rinsing steps are completed, a blower is driven to supply the outside air into the washing tank and the exhaust port provided on the front surface of the door is used. There is known a dishwashing device that dries the dishes by discharging the air in the tank via the dishwasher.

[0003]

However, in the conventional dishwashing apparatus, when the high-temperature and high-humidity exhaust discharged from the washing tank passes through the exhaust port, the dew condensation water is generated by cooling the surface of the exhaust water. There was a problem such as that it leaked to the outside of the machine along the door surface and polluted the floor surface. Also, if a horizontal slit is provided at the end of the exhaust port, and if dew condensation water accumulates in a film form on the slit surface, a certain amount of exhaust air cannot be secured and the original drying performance may not be exhibited. It was

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a dishwashing apparatus which always secures the original drying performance and has less pollution to the surroundings. .

[0005]

In order to achieve the above object, in the present invention, the air outside the machine is supplied into the cleaning tank by driving the blower in the drying process, and the air adheres to the inside of the tank and the surface of the tableware. In a dishwashing apparatus that evaporates water droplets and discharges them through an exhaust port provided in a cleaning tank door, the exhaust port end has a slit provided in a substantially horizontal direction with the exhaust upstream side being slightly inclined downward.

Therefore, the dew condensation water generated when the high-temperature and high-humidity exhaust passes through the end of the exhaust port, the slit is inclined downward toward the inside of the tank, so that it is quickly dropped into the tank by its own weight and washed. Since it returns to the inside of the tank, it does not leak from the exhaust port and contaminate the surroundings, and it is possible to prevent the amount of exhaust gas from decreasing due to the dew condensation water staying in the slit void and reducing the exhaust port area.

Further, by providing a slit at the start end of the exhaust port, moisture in the exhaust gas is condensed when the high temperature and high humidity exhaust gas reaches the slit, so that the exhaust gas is exhausted when the exhaust gas reaches the end slit. The water content of the water is reduced, the occurrence of dew condensation at the terminal slit is suppressed, and the effect of preventing the dew condensation water from leaking out of the machine is further enhanced.

Further, as a preferred embodiment of the present invention, the slit provided at the exhaust port starting end constitutes a substantially horizontal air flow path with the exhaust inflow side being slightly inclined downward.

As a result, when high-temperature and high-humidity exhaust comes into contact with the starting slit, the moisture in the exhaust is condensed and drops into the cleaning tank. Therefore, when the exhaust reaches the end of the exhaust port, the moisture in the exhaust is already reduced. Therefore, it is possible to suppress the occurrence of dew condensation at the end slit.

Further, as a preferred embodiment of the present invention, the slit provided at the starting end of the exhaust port may be installed so as to be substantially vertical when the door is closed.

In this case, the dew condensation water generated on the surface of the starting end slit drops along the slit by its own weight into the cleaning tank. Therefore, when the exhaust reaches the end of the exhaust port, the water content in the exhaust has already decreased. , It is possible to suppress the occurrence of dew condensation at the terminal slit.

Further, as a general installation form of the dishwasher, there is a case where the dishwasher is installed under the cooking surface of the kitchen sink so as to be flush with the left and right storage member doors. In this case, it is assumed that high temperature and high humidity exhaust is discharged from the exhaust port provided on the front of the door and rises along the surface of the door, so that steam may come into contact with the curtain plate on the front of the sink located above the exhaust port. To be done.
Moreover, since the curtains of the sink are generally made of wood mainly from the standpoint of designability, exposure to high temperature and high humidity exhaust may cause stains, discoloration, etc., which may impair the design. There is.

Therefore, in the present invention, a member (protruding portion) that protrudes forward when the door is closed is provided on the upper side of the exhaust port.

Therefore, the high-temperature and high-humidity exhaust gas discharged from the inside of the cleaning tank rises almost directly above immediately after being discharged from the exhaust port to the outside of the machine, but once rises to the protruding portion, it rises once. The high-temperature and high-humidity exhaust discharged from the exhaust port is blocked because it is obstructed, guided along the lower surface of the protrusion, and guided to the front of the cleaning device, and starts rising again when it reaches the front end of the protrusion. When it reaches the position of the plate, it rises while keeping a sufficient distance to the front member, so that the design of the curtain plate is not damaged.

Further, when the dishwashing device is installed under the kitchen sink as described above, the entire device is located significantly below the user, which makes it difficult to operate, stop, and set the device. Accompany.

Therefore, as a preferred embodiment of the present invention,
Since the switch for operating the device, the self-luminous element for displaying the operation / setting status of the device, and the like are collectively arranged on the substantially vertical surface of the protruding portion on the upper side of the exhaust port, the dishwasher is installed in the kitchen as described above. Even when installed in the lower part of the sink, since the operation surface is provided at a position closer to the user, operability and visibility are improved.

Further, as a preferred embodiment of the present invention, one surface of the projecting portion is inclined slightly obliquely upward,
By providing the operation unit on that surface, the operability and the visibility are more significantly improved.

As a general form of a dishwasher, the door that closes the opening of the washing tank makes the inside of the door substantially horizontal when opened so that the dishes can be easily loaded and unloaded before and after washing. An example is known in which the structure can be supported when pulled out further forward. In this case, if the door is opened after the operation of the dishwasher is finished, water droplets adhering to the inner surface of the door may drip immediately below the door via the exhaust port provided through the door, which may contaminate the floor surface. To be done.

Therefore, in the present invention, since the starting end of the exhaust port penetrating the door is provided above the inner surface of the door when the door is open, it is possible to prevent water droplets from dripping on the floor surface through the exhaust port. You can do it.

Further, as a preferred embodiment of the present invention, in order to prevent the exhaust port from being exposed in the tank when the door is closed, the inner surface of the door facing the open end of the exhaust port cover provided so as to cover the exhaust port is provided. By providing a weir-shaped projection at an appropriate position, it is possible to block the water droplets adhering to the inner surface when the door is opening, when the water droplets try to flow toward the exhaust port, it is possible to prevent water droplets from dripping on the floor surface. The preventive effect can be further enhanced.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is an overall configuration diagram of a dishwashing apparatus according to an embodiment of the present invention. The dishwasher is shown in FIG.
As shown in FIG. 3, the sink is installed in the storage space below the sink 23. Further, the dishwasher has a frame 18, which forms the outside of the housing 1, a door 3, and the like, and forms the outer surface thereof. A filter 13 is provided at the bottom of the washing tank 19 to prevent the residual food attached to the dishes from flowing into the washing water storage portion, and a heater 11 for keeping the cleaning liquid at an appropriate temperature is provided in the storage portion. In addition, a dish basket 2 is provided inside the washing tank 19.
A washing nozzle 12 for washing the dishes placed on the table is provided. Further, outside the cleaning tank 19, at the bottom of the dishwasher, a cleaning pump 10 for sucking the cleaning water stored in the storage portion and delivering the cleaning water to the cleaning nozzle 12 is provided.

Further, a cleaning tank 19 is provided on the rear surface of the casing 1.
An air blower 15 for supplying outside air into the washing tank 19 for drying the dishes inside, a heater 16 for heating the air supplied from the air blower 15, and an air including the heater 16 and being supplied from the air blower 15. The air from the blower 15 is supplied to the cleaning tank 19 through the exhaust port 4 provided in the rear door 3 and the cleaning tank 1 is provided.
9 is discharged to the outside. Further, the door 3 has an exhaust port cover 5 that prevents the cleaning liquid from splashing out of the cleaning tank 19 through the exhaust port 4 during the cleaning process.

Further, a solenoid valve 8 for starting and stopping the supply of water from a water supply source or hot water obtained by heating water from a water supply source in a cleaning tank 19 is provided on the back surface of the casing 1. At the outer bottom of the casing 1, a drainage pump 14 for discharging the cleaning liquid in the storage part in the cleaning tank 19 after the cleaning process is completed.
Equipped with.

Further, outside the washing tank 3 and at the bottom of the front surface of the dishwasher, there is provided a control unit 7 for controlling the operations of the solenoid valve 8, the washing pump 10, the drainage pump 14, the blower 15, and the like.
On the upper part of the door 3, there is also provided an operation section 6 fixed to the housing 1 via fixing means 21 for operating / stopping the dishwasher, selecting an operation course, and the like.

Next, the operation of the dishwasher will be described.
When the user loads the tableware on the tableware basket 2 and puts in the detergent, and then turns on the operation switch (not shown) provided on the operation unit 6, the solenoid valve 8 is opened, and water from the water supply source or the water supply source is supplied. Hot water obtained by heating the water from
When the water is supplied into the cleaning tank 19 and the water level in the reservoir reaches a predetermined value (water amount), the water supply is stopped. At this time, the hot water or water supplied from the water supply port and the wash water made by the detergent introduced by the user are stored in the storage section.
Next, in this state, the washing pump 10 is operated and the washing water is ejected from the washing nozzle 12 to wash the dishes. Here, the cleaning nozzle 12 may be a so-called rotary nozzle that rotates by a water flow.

After continuing the washing operation for a predetermined time, the drainage pump 14 discharges the wash water stored in the storage portion to the outside of the dishwasher, and after the drainage pump 14 is stopped, the water from the water supply source or the water supply source is similarly supplied. The warm water obtained by heating the water from the above by the heating means is supplied to the cleaning tank 19, and the water supply is stopped when the water level in the storage portion reaches a predetermined value (water amount). Next, in this state, the washing pump 10 is operated, the washing water is ejected from the washing nozzle 12, and the dishes are rinsed. Note that this rinsing operation may be repeated a predetermined number of times.

When the rinsing operation is continued for a predetermined time, the drainage pump 14 discharges the hot water or water stored in the storage portion to the outside of the dishwasher, the drainage pump 14 stops operating, and then the blower 15 is activated. Depending on the drying operation content selected by the drying operation content selecting means provided in the operation unit 6, the drying heater 16 operates and the warm air or the normal temperature air blown by the blower 15 passes through the air blowing path 17 and the washing tank 19
A drying operation is performed to dry the tableware supplied to the table, and when the drying operation continues for a predetermined time, a series of operations is ended.

FIG. 2 is a detailed structural diagram of the exhaust port 4 and its surroundings. In the drying process, the blower 15 is driven to supply the dry air into the cleaning tank 19 to evaporate water droplets adhering to the surface of the object to be cleaned mounted on the tableware basket 2 and the exhaust port 4 provided on the door 3. In the dishwasher that discharges to the outside of the machine via the, a slit 4a that is configured in a substantially horizontal direction is provided at the end of the exhaust port 4 with the exhaust inflow side being slightly inclined.

Therefore, the dew condensation water generated when the high-temperature and high-humidity exhaust gas comes into contact with the slit 4a is inclined such that the surface forming the void of the slit 4a becomes lower upstream.
The condensed water adhering to the surface of the slit is quickly dropped by its own weight, flows through the bottom surface of the exhaust port 4 inclined toward the cleaning tank, and returns to the cleaning tank. Therefore, it may leak from the exhaust port and pollute the surroundings. In addition, it is possible to prevent a decrease in the amount of dry air caused by the condensed water droplets staying in the voids of the slit 4a and reducing the area of the exhaust port.

Further, the slit 4b is provided at the beginning of the exhaust port 4.
By providing the above, since the moisture in the exhaust gas is condensed when the high temperature and high humidity exhaust gas reaches the slit 4b, the water content in the exhaust gas is reduced when the exhaust gas reaches the terminal slit 4a.
The occurrence of dew condensation on the terminal slit 4a is suppressed.

Further, the slit 4 provided at the starting end of the exhaust port 4
b is configured in a substantially horizontal direction with the exhaust gas inflow side slightly inclined. As a result, when the high-temperature and high-humidity exhaust comes into contact with the slits 4b, the water content in the exhaust is condensed to form the cleaning tank 19
Since the water is dropped inside, when the exhaust reaches the end of the exhaust port 4, the water content in the exhaust has already decreased, and the occurrence of dew condensation in the slit 4a can be suppressed.

FIG. 3 is a view showing another embodiment of the exhaust port 4. The slit 4b provided at the start end of the exhaust port 4 is attached to the door 3
When installed so as to be substantially vertical in the closed state, the dew condensation water generated on the surface of the slit 4b drops into the cleaning tank 19 by its own weight along the slit 4b. The water content in the exhaust gas has already been reduced by the time when the pressure reaches, and it is possible to suppress the occurrence of dew condensation in the slit 4a.

FIG. 4 is a view showing a protruding structure provided on the upper portion of the door 3. As a general installation form of the dishwasher,
The kitchen sink may be installed below the cooking surface so as to be flush with the left and right storage member doors. In this case, in the process in which the high-temperature and high-humidity exhaust discharged from the exhaust port 4 provided on the front surface of the door 3 rises along the surface of the door 3, steam is generated on the curtain plate 22 on the front surface of the sink located above the exhaust port 4. It is assumed that they come into contact with each other.
Further, since the curtain plate 22 is generally made of wood mainly from the viewpoint of designability, it may stain or discolor when exposed to exhaust gas, which may impair the designability.

In the present embodiment, since the upper side of the exhaust port 4 is formed so as to project forward, the high temperature and high humidity exhaust exhausted from the exhaust port 4 has already been reached when the altitude of the curtain plate 22 is reached. Since it rises while maintaining a sufficient distance with respect to the curtain plate 22, the design of the surface of the curtain plate 22 is not damaged.

FIG. 5 shows another form of the protruding structure. In this form, the protrusion 24 is formed as a separate body from the exhaust port 4. The high temperature and high humidity exhaust discharged from the cleaning tank 19 is
Immediately after being discharged from the exhaust port 4 to the outside of the machine, it tries to rise almost directly above, but once it reaches the protruding portion 24, it is temporarily stopped from rising and is guided to the front of the dishwasher along the lower surface of the protruding portion 24. , When it reaches the front end of the protrusion 24, it starts to rise again. Therefore, the high-temperature and high-humidity exhaust exhausted from the exhaust port 4 already rises while maintaining a sufficient distance with respect to the curtain plate 22 when the altitude of the curtain plate 22 is reached, impairing the design of the surface of the curtain plate 22. There is nothing.

Further, when the dishwasher is installed under the kitchen sink as described above, the entire apparatus is located significantly below the user, which makes it difficult to operate, stop, and set the apparatus. Accompany. Therefore, an operation unit 6 in which a switch for operating the device, a self-luminous element for displaying the operation / setting status of the device, and the like are collected on the substantially vertical surface of the above-mentioned protruding structure of the exhaust port.
Was placed. Therefore, even when the dishwasher is installed under the sink as described above, the operation surface 6 is provided closer to the user, and thus the operability and visibility are improved.

Further, by sloping one surface of the projecting structure so as to face obliquely upward and providing the operating portion 6 on the surface, the operability and the visibility are more significantly improved.

It should be noted that the operating portion 6 and the projecting portion 24 described with reference to FIG. 5 are integrated to provide an operating portion on the front surface of the projecting portion 24, or the front surface of the projecting portion 24 is inclined obliquely upward and the operating portion is placed there. May be provided.

FIG. 6 is a view showing a state in which the door is opened in the dishwasher according to the embodiment of the present invention. As a general form of a dishwashing apparatus, the door 3 that closes the opening of the washing tank 19 facilitates loading and unloading of dishes before and after washing, so that the inner surface of the door 3 is substantially horizontal when opened and the dish basket 2 is opened.
Is structured so that it can be supported when it is pulled out forward from the cleaning tank 19. In this case, if the door 3 is opened after the operation of the dishwasher is finished, water droplets attached to the inner surface of the door may be dripped right below the door via the exhaust port 4 provided through the door 3 to contaminate the floor surface. There is.

Therefore, in this embodiment, since the starting end of the exhaust port 4 penetrating the door 3 is provided so as to be located above the inner surface of the door 3 when the door 3 is opened, water droplets can reach the floor surface through the exhaust port 4. It is possible to reliably prevent dripping.

FIG. 7 is a view showing the structure around the opening end of the exhaust port cover. Further, by providing a weir-like projection 3a at an appropriate position on the inner surface of the door 3 opposite to the opening end of the exhaust port cover 5 provided so that the exhaust port 4 is not exposed in the cleaning tank 19 when the door 3 is closed. When the door 3 is opened, water droplets attached to the inner surface can be dammed when the water droplets try to flow toward the exhaust port 4.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a dishwashing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing an exhaust port 4 and its peripheral structure.

FIG. 3 is a view showing another embodiment of the exhaust port 4 in the present invention.

FIG. 4 is a view showing a protruding structure provided on the upper portion of the door 3.

FIG. 5 is a view showing another form of the protruding structure provided on the upper portion of the door 3.

FIG. 6 is a diagram showing a state in which a door 3 is opened in the dishwasher according to the embodiment of the present invention.

FIG. 7 is a diagram showing a peripheral structure of an opening end of the exhaust port cover 5.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1: Housing, 2: Tableware basket, 3: Door, 3a: Weir-like protrusion provided on the door, 4: Exhaust port, 4a and 4b: Slit, 5: Exhaust port cover, 6: Operating part, 7 : Control unit, 8:
Water supply solenoid valve, 9: Water level detection means, 10: Circulation pump, 1
1: hot water heater, 12: nozzle, 13: filter, 1
4: Drain pump, 15: Blower: 16: Drying heater,
17: Blower route, 19: Cleaning tank, 20: Lower panel, 2
1: operation part support, 22: curtain plate, 23: sink, 24:
Protrusion

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuhiro Haraga             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. (72) Inventor Nobuyuki Maebashi             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. (72) Inventor Yoshihiro Ogami             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. (72) Inventor Kazuaki Tahara             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. F term (reference) 3B082 BB01 BE01

Claims (9)

[Claims] 1. A dishwasher having a cleaning tank containing an object to be cleaned and a blower for supplying outside air into the cleaning tank, wherein a high temperature and high humidity atmosphere retained in the cleaning tank is blown by the blower. The dishwashing device is characterized in that a substantially horizontal slit is provided at the end of the exhaust port discharged to the outside of the machine by the operation of so that the upstream side of the exhaust is inclined downward. 2. A dishwasher having a cleaning tank containing an object to be cleaned and a blower for supplying air outside the machine to the cleaning tank, wherein a high temperature and high humidity atmosphere retained in the cleaning tank is blown by the blower. A dishwasher characterized in that a plurality of slits are provided at the beginning and the end of the exhaust port that is discharged to the outside of the machine. 3. The dishwasher according to claim 2, wherein the slit arranged at the starting end of the exhaust port forms a substantially horizontal flow path that is inclined downward toward the exhaust upstream side. . 4. The dishwasher according to claim 2, wherein the slit arranged at the starting end of the exhaust port is provided in a substantially vertical direction. 5. The dishwasher according to claim 1, wherein a protrusion is provided on the upper side of the end of the exhaust port. 6. The dishwashing apparatus according to claim 5, wherein an operation section for operating the apparatus is provided on the surface of the protrusion. 7. The surface of the protrusion is inclined obliquely upward,
7. The dishwashing device according to claim 6, wherein an operating portion for operating the device is provided on the inclined surface. 8. A cleaning tank containing an object to be cleaned, an opening provided on the front surface or one side surface of the cleaning tank for loading / unloading the object to be cleaned, and a door used for opening / closing the opening. In a dishwasher having a blower that supplies air outside the machine into the cleaning tank, the starting end of the exhaust port that discharges the high temperature and high humidity atmosphere staying in the cleaning tank to the outside by the operation of the blower, A dishwasher characterized by being positioned above an inner surface of the door which is substantially horizontal when the door is opened. 9. The exhaust port provided on the inner surface of the door is covered with an exhaust port cover, and the exhaust port cover is provided at a position facing the open end of the exhaust port cover.
The dishwashing device according to claim 8, wherein a weir-shaped projection is provided.