JP7129593B2 - dishwasher - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing objects such as tableware stored in a washing tank.

A conventional dishwasher is shown in FIG. FIG. 6 is a longitudinal sectional view of a conventional dishwasher. A cleaning tank 115 is provided inside the main body 116 . A washing pump 117 for circulating washing water is provided at the bottom. An underframe 123 made of synthetic resin supports the lower portion of the cleaning tank 116, and has a substantially recessed portion 123a that opens downward on its lower surface. An intake passage 125 is formed together with the recessed portion 123a. A partition plate 127 is arranged inside the air intake passage 125 to form a fan casing 136 , and an exhaust fan 126 is arranged in the fan casing 136 . The fan motor 128 has its rotating shaft arranged in the vertical direction. An intake filter 129 is detachably attached from the front to the front surface of the underframe 123 forming the intake passage 126 . The suction surface 130 is provided on the lower surface of the underframe 123 .

With the above configuration, the air intake filter can be attached and detached forward from the main body, so that the operability of the air intake filter is improved.

Another conventional drawer-type dishwasher has an intake filter at the bottom of the washing tub, and is covered with a cover that hides the parts provided at the bottom. The air blower sucks outside air entering through a gap in the main body or the like.

JP-A-01-249029

However, in conventional dishwashers, since the intake filter is attached and detached from the front, the handle of the intake filter appears on the front and can be seen from the front, which impairs the appearance.

Another problem with other conventional drawer-type dishwashers is that although the air intake filter is provided at the bottom of the washing tank and cannot be seen from the front, the condition of the air intake filter cannot be confirmed because it is covered with a cover, and cleaning is not easy. There is

SUMMARY OF THE INVENTION An object of the present invention is to provide a dishwasher in which maintenance such as cleaning and replacement can be easily performed without the air intake filter being visible from the front.

In order to achieve the above object, the dishwasher of the present invention includes a main body, a dish basket for accommodating objects to be washed, a washing tank provided in the main body for accommodating the dish basket, and a dish basket for accommodating the dish basket. A door that opens and closes the cleaning tank in the front-rear direction, a cleaning device that cleans the object to be cleaned, a blower fan that introduces outside air into the cleaning tank, an intake path and an intake filter, and a lower part of the cleaning tank. and a control section for executing at least one of a washing process, a rinsing process and a drying process in the cleaning operation, wherein the undercover is provided at the front bottom of the cleaning tank for the intake of the intake passage. The air intake filter is fixed to the position of the air intake path opening by the undercover, and the air intake filter is replaced by removing the undercover while the cleaning tank is pulled forward. configured to allow

With this configuration, maintenance such as cleaning and replacement can be easily performed without the intake filter being visible from the front.

In the dishwasher of the present invention, maintenance such as cleaning and replacement can be easily performed without the air intake filter being visible from the front.

Side cross-sectional view of the dishwasher according to Embodiment 1 of the present invention A perspective view of the dishwasher according to the present embodiment as seen from below FIG. 2 is a perspective view of the essential parts of the dishwasher according to the present embodiment, viewed from below. A vertical cross-sectional view of the vicinity of the air intake path of the dishwasher according to the present embodiment. A perspective view of a dishwasher according to another embodiment of the present invention Side sectional view of a conventional dishwasher

The dishwasher of the first invention comprises
A main body, a dish basket for accommodating objects to be washed, a washing tank provided in the main body for accommodating the dish basket, a door for opening and closing the dish basket by moving it forward and backward, and washing the objects to be washed. a cleaning device, a blower fan, an intake path and an intake filter for introducing outside air into the inside of the cleaning tank, an under cover covering the lower part of the cleaning tank, and at least a washing process, a rinsing process and a drying process in the cleaning operation. and a control unit that performs any one of the above, wherein the undercover has an intake passage opening of the intake passage. With this configuration, maintenance such as cleaning and replacement can be easily performed without the intake filter being visible from the front.

In the second invention, particularly in the first invention,
The intake filter is configured to be replaceable by removing the undercover. This configuration facilitates maintenance such as cleaning and replacement.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the present invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a side cross-sectional view of a dishwasher according to Embodiment 1 of the present invention. Note that FIG. 1 shows a state in which the dishwasher is built into the system kitchen SK.

As shown in FIG. 1, the dishwasher of this embodiment includes a main body 1, a door 1a, a washing tank 2, a washing pump 6, a water supply valve 10 and the like. In the following embodiments, as shown in the drawings, the forward direction is the direction in which the door 1a and the cleaning tank 2 are pulled out, and the rearward direction is the direction in which the cleaning tank 2 is housed and the door 1a is closed. . Further, the installation side of the dishwasher is defined as the lower side, the opposite side is defined as the upper side, and the right side as viewed from the front of the door 1a is defined as the right side, and the left side as the left side.

Specifically, the washing tank 2 includes therein a dish basket 4, a washing nozzle 7, a drain port 8, a residue filter 8a, and the like. The cleaning tank 2 is provided inside the main body 1 so that it can be taken in and out in the front-rear direction. The cleaning tank 2 has an opening 2a on its upper surface. The opening 2a is closed by a lid 3 arranged inside the main body 1 when it is housed inside the main body 1. As shown in FIG. Objects 5 to be washed such as tableware are placed in the dish basket 4 . A door 1 a is provided in the front part of the cleaning tank 2 and opens and closes the front surface of the main body 1 . A water supply valve 10 is provided inside the rear portion of the main body 1 . When the water supply valve 10 is opened, it supplies cleaning water, such as tap water, to the cleaning tank 2 .

A cleaning device for cleaning the object 5 to be cleaned includes a cleaning pump 6, a cleaning nozzle 7, a heater 9, and the like. The cleaning pump 6 is provided outside the bottom surface of the cleaning tank 2 , and the cleaning nozzle 7 is provided at the bottom inside the cleaning tank 2 . The washing pump 6 pressurizes and supplies the washing water stored in the washing tank 2 to the washing nozzle 7, that is, pressure-feeds the water. The washing nozzle 7 sprays washing water toward the object 5 to be washed while rotating due to the reaction force of the pressure-fed washing water. The washing water sprayed from the washing nozzle 7 collides with the object 5 to be washed to wash the object. The washing water includes a washing liquid that contains a detergent and is sprayed onto the object 5 to be washed, and rinsing water for rinsing the object 5 to be washed.

A drain port 8 and a heater 9 are provided at the bottom of the cleaning tank 2 . The residue filter 8a is detachably attached to the drain port 8 and collects the residue washed and removed from the object 5 to be cleaned. The heater 9 heats the cleaning water stored in the cleaning tank 2 in the cleaning process. The heater 9 heats the drying air in the cleaning tank 2 in the drying process. A temperature sensor 11 is arranged outside the bottom surface of the cleaning tank 2 and detects the temperature of the cleaning tank 2 .

The cleaning pump 6 has a suction side connected to a drain port 8 and circulates cleaning water from which residue has been removed by a residue filter 8a. Further, the cleaning pump 6 is configured as a drain pump for draining cleaning water from which residues have been removed by reversing the direction of rotation of the motor during circulation. A drainage pump for drainage may be provided separately, and the cleaning pump 6 may be provided exclusively for circulating the cleaning water.

A drying device for drying the object 5 to be washed is provided between the washing tank 2 and the door 1a. The drying device includes an air supply passage 12 as a second communication passage, a communication passage 13 as an exhaust passage, a blower fan 14, an intake passage 15 to the blower fan 14, and an intake filter 16 provided in the intake passage 15. , an exhaust port 17, a heater 9, and the like. The air supply passage 12 and the communication passage 13 communicate between the inside of the cleaning tank 2 and the outside of the main body 1, respectively. The exhaust port 17 is provided in the door 1a.

A blower fan 14 is provided in the air supply passage 12 . An intake passage 15 is provided upstream of the blower fan 14 . An intake filter 16 is provided in the middle of the intake path 15 . The blower fan 14 introduces outside air into the cleaning tank 2 . Due to this introduction pressure, the air in the cleaning tank 2 is discharged outside from the exhaust port 17 via the communication passage 13 . The intake filter 16 collects dust and the like in the air that is taken in. The heater 9 heats the drying air introduced through the air supply passage 12 by the blower fan 14 in the drying process.

Under the cleaning tank 2, an undercover 18 is provided to cover the cleaning pump 6, piping, wiring, and the like. The undercover 18 covers these parts and improves the appearance when the cleaning tank 2 is pulled out from the main body 1. - 特許庁The undercover 18 has an intake passage port 15a that opens to the space inside the main body 1 .

Furthermore, a control unit 19 is provided in the space S2 between the cleaning tank 2 and the door 1a. The control unit 19 executes at least one of the washing process, the rinsing process, and the drying process in the washing operation, and controls the washing device, the blower fan 14, and the like. In particular, the blower fan 14 in the communication section is operated during the drying process. As a result, the object to be cleaned 5 and the inside of the cleaning tank 2 are efficiently dried, and the drying time is shortened.

FIG. 2 is a bottom perspective view of the dishwasher according to the present embodiment. FIG. 3 is a perspective view of the essential parts of the undercover 18 of the dishwasher according to the present embodiment, viewed from below. FIG. 4 is a longitudinal sectional view of the vicinity of the intake passage 15 of the dishwasher according to this embodiment.

An intake passage 15 and an intake passage opening 15 a are provided on the bottom surface of the undercover 18 . A lattice portion 16 a is provided on the upstream side of the intake filter 16 integrally with the undercover 18 . The lattice portion 16a protects the intake filter 16 when the dust collected by the intake filter 16 is sucked by a vacuum cleaner. The air intake filter 16 is temporarily fixed to the air intake path 15 on the cleaning tank 2 side. And it is completely fixed by fixing the undercover 18 .

Since the intake filter 16 is configured in this way, it is normally not visible from the outside and does not impair the appearance. The user can check the dirt condition of the intake filter 16 by pulling out the cleaning tank 2 . Then, the dust collected on the intake filter 16 can be sucked and cleaned by a vacuum cleaner or the like at an appropriate time. Also, the intake filter 16 can be replaced by removing the undercover 18 . By maintaining the air intake filter 16 in this manner, a decrease in air volume during the drying process is prevented, and a decrease in drying efficiency is suppressed.

In addition, in the above description, the intake filter 16 is provided on the bottom surface of the undercover 18, but the present invention is not limited to this. For example, as shown in FIG. 2, the left and right side surfaces 18a of the undercover 18 may be provided.

As described above, the main body 1, the dish basket 4 for accommodating the objects to be washed 5, the washing tank 2 provided in the main body 1 for accommodating the dish basket 4, and the dish basket 4 are opened and closed by inserting and removing them in the front-rear direction. a cleaning device such as a cleaning pump 6 for cleaning an object 5 to be cleaned; a blower fan 14 for introducing outside air into the interior of the cleaning tank 2; An undercover 18 for covering and a control unit 19 for executing at least one of the washing process, the rinsing process and the drying process in the washing operation. With this configuration, maintenance such as cleaning and replacement can be easily performed without the intake filter being visible from the front.

Further, in the dishwasher of the present embodiment, the cleaning tub 2 is of a drawer type, but the drawer type dishwasher as shown in FIG. 5 is also applicable. In FIG. 5, a cleaning tank 72 is constructed inside a main body 71 . The door 73 is supported by support rails 74 and slides back and forth to open and close the front opening 72 a of the cleaning tank 72 . The tableware basket 75 is supported by basket rails 76 and locked to the door 73 to slide back and forth. The air blower and the communication part are arranged inside the door 73 and have an exhaust port 77 on the front surface. The air blower can introduce external air from an opening 78 provided on the side surface or bottom surface of the door 73 .

INDUSTRIAL APPLICABILITY As described above, the dishwasher according to the present invention is useful as a household dishwasher because the intake filter is not visible from the front and maintenance such as cleaning and replacement can be easily performed.

REFERENCE SIGNS LIST 1 main body 1a door 2 washing tank 2a opening 3 lid 4 dish basket 5 object to be washed 6 washing pump 7 washing nozzle 8 drain port 9 heater 10 water supply valve 11 temperature sensor 12 air supply passage (second communication passage)
13 Communication passage 14 Blower fan 15 Intake passage 15a Intake passage port 16 Intake filter 16a Lattice portion 17 Exhaust port 18 Under cover 18a Side surface 19 Control unit 71 Main body 72 Cleaning tank 72a Front opening 73 Door 74 Support rail 75 Dish basket 76 Basket rail 77 Exhaust port 78 Opening SK System kitchen

Claims (1)

a main body, a dish basket for accommodating objects to be washed, a washing tank provided in the main body for accommodating the dish basket, a door for opening and closing the washing tank for accommodating the dish basket by inserting and removing the dish basket in the front-rear direction, and A cleaning device for cleaning an object to be cleaned, a blower fan, an air intake path and an air intake filter for introducing outside air into the interior of the cleaning tank, an under cover covering the bottom of the cleaning tank, and at least a washing step in the cleaning operation. , a control unit that executes either the rinsing process or the drying process,
The undercover has an intake path port of the intake path at the front bottom of the cleaning tank, and the intake filter is fixed by the undercover at the position of the intake path port,
The dishwasher is configured such that the intake filter can be replaced by removing the undercover while the washing tank is pulled forward .

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