JPH08289868A - Dish washer - Google Patents

Abstract

PURPOSE: To efficiently perform washing in a short time regardless of the amount of objects to be washed by disposing a turntable on the bottom part of a washing tank where a washing water jetting nozzle and a drying air jetting nozzle are disposed, detecting that a basket body is mounted on the turntable and operating the respective jetting nozzles and the turntable in an optional mode. CONSTITUTION: When a lid body is opened and the objects to be washed such as dirty dishes or the like are held in hands and put inside the washing tank, a dish insertion detection sensor 13A senses it, a washing water pressurizing and supplying device 17 is operated, washing water is jetted from the washing water jetting nozzle and the objects to be washed are washed. Thereafter, when the objects to be washed which are tentatively put out are put inside the washing tank again, a blower motor 18 is turned on by the output of a dish insertion detection sensor 13B, hot air is blown out from the drying air jetting nozzle and drying is performed. In the case of washing small tableware such as small dishes and spoons, by housing the small tableware in a washing basket body and mounting the washing basket body on the turntable inside the washing tank, washing the drying are performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of efficiently cleaning objects to be cleaned in a short time regardless of the amount of dishes and pots (hereinafter referred to as objects to be cleaned) to be cleaned. The present invention relates to a dishwasher.

[0002]

2. Description of the Related Art As is well known, a conventional automatic dishwasher has a washing machine set in a washing tank below a washing basket.
A horizontally rotating cleaning water injection nozzle is installed, and while rotating the cleaning water injection nozzle, the cleaning water is sprayed from below the stationary cleaning basket to clean the objects to be cleaned stored in the cleaning basket. Most are configured to drop.

For this reason, in the above-mentioned conventional automatic dishwasher, since the washing water jet nozzle is rotated,
For example, when the cleaning tank and the cleaning basket are formed in a quadrangular shape, the cleaning water is not supplied to the four corners of the cleaning basket, so that uncleaned residue occurs and the cleaning water is supplied from below. When a large number of objects to be cleaned are stored in the cleaning basket, there is a problem that cleaning water is not supplied to the upper objects to be cleaned and cleaning is incomplete.

In order to solve such a problem, conventionally, there has been proposed a conventional example in which a spray of cleaning water is supplied to a portion where the cleaning water does not hit to remove dirt.
Even if such droplets of washing water are used, the direction in which the droplets fly depends on the amount and shape of the item to be washed stored in the washing basket, and it is very uncertain. , The amount of washing water, the jetting force of washing water, and the washing time must be set to be very long, so the power consumption and the amount of water used increase, and the tableware wears due to long-time powerful jetting, or However, it has a problem that it is easily damaged.

The present invention was devised in view of the above situation, and an object thereof is to efficiently operate in a short time even if a small amount of the object to be cleaned is irrespective of the amount of the object to be cleaned. It is an object of the present invention to provide a dishwashing apparatus that can clean an object to be cleaned, has no fear of damaging the object to be cleaned, and is very economical in power consumption and water consumption.

[0006]

In order to achieve the above object, in the present invention, a dishwasher is provided with a washing tank provided with a washing water jet nozzle and a dry air jet nozzle, and the washing tank. Tableware insertion detection means, a rotary table rotatably arranged at the bottom of the cleaning tank, a basket body mountable on the rotary table, and the basket body mounted on the rotary table. Based on the detection signal from the table detecting means, the means for supplying cleaning water to the cleaning water jet nozzle, the means for supplying the dry air jet nozzle, and the tableware insertion detecting means and / or the basket detecting means. The cleaning water jetting nozzle, the dry air jetting nozzle, and a control means for operating the turntable in an arbitrary mode are provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in the accompanying drawings.

As shown in FIG. 1, the dishwasher 1 according to this embodiment is connected to the right side of a sink K having a sink 3 in which a faucet 2 is arranged.

As shown in FIG. 2, this dishwashing apparatus 1 includes a washing water jet nozzle 11 and a dry air jet nozzle 12.
Cleaning tub 10 in which each is arranged, tableware insertion detection sensors 13A and 13B arranged in the cleaning tub 10, a rotary base 14 rotatably arranged at the bottom of the cleaning tub 10, and the rotation thereof. A cleaning basket 15 that can be mounted on the stand 14, a basket sensor 16 that detects that the cleaning basket 15 is mounted on the rotary base 14, and heated cleaning water are supplied to the cleaning water jet nozzle 11. Cleaning water pressurizing supply device 17 and blower motor 18 for supplying warm air to the dry air injection nozzle 12
And the operation switch panel 19 and control for operating the wash water injection nozzle 11, the dry air injection nozzle 12 and the rotary base 14 in an arbitrary mode based on the detection signals from the tableware insertion detection sensors 13A and 13B and / or the basket sensor 16. The device 20 is included.
Reference numeral 21 in FIG. 1 is a lid for opening and closing the cleaning tank 10 and inserting and removing the basket 15 into and from the cleaning tank 10.

The cleaning tank 10 is formed of a cylindrical waterproof tank body having a substantially U-shaped cross section, and the cleaning water injection nozzles 11 are provided at predetermined intervals along the circumferential direction of the inner surface thereof. The dry air jet nozzle 12 is arranged slightly below the position where the wash water jet nozzle 11 is arranged, and the tableware insertion detection sensors 13A, 1 are arranged.
A required number of 3B are arranged between the cleaning water jet nozzle 11 and the dry air jet nozzle 12.

A drain trap 22 is attached to the bottom of the cleaning tank 10, and the cleaning water supplied into the cleaning tank 10 is drained from the drain trap 22 to sewage.

The wash water injection nozzles 11 are connected to the wash water pressurizing and supplying device 17, respectively. In the wash water pressurizing and supplying device 17, after heating the tap water to a predetermined temperature,
The hot water is pressure-fed to each of the wash water jet nozzles 11 by a pressurizing pump, whereby hot water is jetted uniformly from the wash water jet nozzles 11 toward the inside of the washing tank 10.

The dry air injection nozzle 12 is connected to a blower motor 18 so as to communicate therewith.
Supplies heated air to a predetermined temperature and supplies it to the dry air injection nozzle 12, whereby hot air is uniformly blown from the dry air injection nozzle 12 toward the inside of the cleaning tank 10. In the illustrated embodiment, the cleaning tank 1
The case where one dry air jetting nozzle 12 is provided in No. 0 has been described as an example, but the present invention is not limited to this, and a plurality of dry air jetting nozzles 12 may be provided if necessary.

The tableware insertion detection sensors 13A and 13B and the basket sensor 16 are constituted by well-known sensors such as ultrasonic sensors or optical sensors.

The tableware insertion detection sensor 13A controls the washing water pressure supply device 17 to be turned on and off. When the tableware insertion detection sensor 13A senses a hand or an object to be washed, the washing water pressure supply device 13A is supplied. The device 17 is turned on, the cleaning water is sprayed from the cleaning water spray nozzle 11, and the dirt on the hand or the object to be cleaned is quickly removed. After that, when the hand or the object to be cleaned is moved away from the tableware insertion detection sensor 13A, the cleaning water pressure supply device 17 is automatically turned off.

The tableware insertion detection sensor 13B is for turning on and off the blower motor 18. When the tableware insertion detection sensor 13B senses a hand or an object to be washed, the blower motor 18 is turned on to inject dry air. Warm air is blown uniformly from the nozzle 12 toward the inside of the cleaning tank 10. After that, the hand and the object to be cleaned are put in the tableware insertion detection sensor 13
When moving away from B, the blower motor 18 is automatically turned off.

The turntable 14 is, as shown in FIGS. 3 and 4,
The washing water is washed by the aggregate connected to each other in a cross shape and the plurality of concentric ring members fixed to the aggregate.
It is configured so as to flow down toward the bottom of 0, and support rollers 23, 23, 23, 23 for supporting the rotary base 14 and the cleaning basket 15 in the lower part thereof, and a rotary shaft 2 for rotation.
4 and a stopper frame 25 for holding the cleaning basket 15 and a rectangular convex portion 26 made of a permanent magnet or the like on the upper portion. Of course, the portion of the rotary table 14 on which the cleaning basket 15 is placed may have a configuration in which the cleaning water flows down, and may be formed of, for example, a mesh body.

The supporting rollers 23, 23, 2
As shown in FIG. 2, 3, 23 are rotatably mounted on a shelf rail portion 27 protruding horizontally from the inner wall surface of the cleaning tank 10, and the rotary shaft 24 is a cleaning tank. It is connected to a rotary base drive motor 28 arranged below the unit 10. As the seal structure between the rotary shaft 24 and the bottom of the washing tub 10, for example, a known seal structure used in an electric washing machine can be applied, and a detailed description thereof will be omitted here.

On the other hand, the cleaning basket 15 is used for cleaning small dishes such as small plates and spoons, and is formed of a net-like rectangular parallelepiped having a size that allows the lid 21 to be opened and removed. , On the bottom, as shown in FIGS. 3 and 4,
A stopper frame 29 and a concave portion 30 formed at the center of the bottom portion are provided in a protruding manner, and the concave portion 30 is fitted and locked with the square convex portion 26.

The cage sensor 16 is disposed on the inner wall surface of the cleaning tank 10 and slightly above the rotary table 14.

As described above, the cleaning water pressurizing and supplying device 17 pumps hot water to each of the cleaning water jet nozzles 11 by a pressurizing pump, and is composed of a pressurizing pump, a heater and a motor. As shown in FIG. 2, the connection with the water supply is interrupted by the flow switch 31.

The blower motor 18 has the same structure as a known blower motor composed of a heater, a blower fan and a fan motor.

The operation switch panel 19 is used for the dishwasher 1.
5, which is arranged on the front surface of the cabinet body 4 of FIG. 5, is composed of, for example, the touch switch shown in FIG.
Switch 34 to switch to weak, basket wash selection switch 3
5, a switch group consisting of a draining selection switch 36 for only blowing air and a washing switch 37 for only washing,
It is composed of a plurality of LEDs 38 for displaying "temporary stop", "water", "hot water", and on / off states of "power supply". The touch switch itself has the same configuration as that of the conventional touch switch panel, and therefore detailed description thereof will be omitted here.

As shown in FIG. 6, the control unit 20 has a microprocessor (MPU) 39, and the signals from the tableware insertion detection sensors 13A and 13B and the basket sensor 16 and the operation switch panel 19 are used. When the selected operation signals are input, based on these signals,
An LED 38 for controlling ON / OFF of each of the washing water pressure supply device 17, the blower motor 18, and the rotary base drive motor 28, and for displaying the operation status of the dish washing device 1.
Is controlled to blink.

Next, a description will be given of the case of cleaning an article to be cleaned with the dishwasher 1 having the above-mentioned structure.
When the lid 21 is opened, the dishware or the dishwasher such as the pot and the frying pan is grasped in the hand and the dishwashing object is put into the washing tank 10, the dishwashing detection sensor 13A senses the dishing object. The tableware insertion detection sensor 13A turns on the cleaning water pressure supply device 17 to inject the cleaning water from the cleaning water injection nozzle 11 toward the object to be cleaned, and quickly removes dirt attached to the hand or the object to be cleaned. Drop it.

After that, when the hand or the object to be cleaned is moved away from the tableware insertion detection sensor 13A, the cleaning water pressurizing and supplying device 17 is automatically turned off, so that the dirt can be removed in a short time. The amount and amount of wash water used can be minimized. In particular, for households such as the elderly who rarely use the item to be washed at one time, the item to be washed can be easily and conveniently washed, which greatly improves the usability.

After that, when the object to be cleaned is put into the cleaning tank 10 again and the object to be cleaned is detected by the tableware insertion detection sensor 13B, the tableware insertion detection sensor 13B turns on the blower motor 18 and the dry air injection nozzle 12 Since the warm air is blown evenly toward the inside of the cleaning tank 10, the object to be cleaned can be dried quickly. After that, when the hand or the object to be cleaned is moved away from the tableware insertion detection sensor 13B, the blower motor 18 is automatically turned off, so that the power consumption of the blower motor 18 can be greatly saved.

In addition, when cleaning the inside of the washing tank 10
When cleaning small dishes such as a spoon, the pause switch 32 is turned on to insert the dish insertion detection sensors 13A, 1
Lock 3B so that it does not turn on.

In order to wash small dishes such as small plates and spoons from this state, the small baskets such as small plates and spoons are stored in the washing basket body 15, and the washing basket body 1 is washed.
5 is placed on the turntable 14 in the cleaning tank 10. At this time, the concave portion 30 of the cleaning basket 15 is fitted and locked with the square convex portion 26 of the rotary table 14 and positioned.

In this way, the cleaning basket 1 is attached to the turntable 14.
When 5 is placed, the basket sensor 16 detects this and the basket washing mode is set to the standby state.

From this state, the basket washing selection switch 35
When is turned on, the spray water is discharged from the wash water spray nozzle 11 for a fixed time (T ₁ ) according to the time chart shown in FIG. 7, and after the spray water is stopped, the dry air is discharged for a fixed time (T ₂ ). Warm air is blown from the spray nozzle 12 toward the inside of the cleaning tank 10 evenly, and after the elapse of a certain time, the delivery of the warm air is automatically stopped. The attached water droplets can be blown off and dried.

[0032]

As described above, in the dishwasher according to the present invention, regardless of the amount of the object to be washed, even a small amount of the object to be washed can be efficiently washed in a short time. It is possible to remove dirt from the object, there is no risk of damaging the object to be cleaned, and power consumption and water consumption are very economical.
It has many excellent effects.

[Brief description of drawings]

FIG. 1 is a perspective view of a sink in which a dishwasher according to an exemplary embodiment of the present invention is set.

FIG. 2 is an explanatory diagram showing a schematic configuration of the dishwasher.

FIG. 3 is a configuration explanatory view showing a connected state of a rotary table and a washing basket of the dishwasher.

FIG. 4 is a plan view of a cleaning basket body mounted on a rotary table of the dishwasher.

FIG. 5 is a front view showing an example of an operation switch panel arranged in the dishwasher.

FIG. 6 is a flowchart showing a configuration of a control device of the dishwasher.

FIG. 7 is an operation time chart of each mechanism during basket washing by the dishwasher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dishwasher 10 Washing tank 11 Washing water jet nozzle 12 Dry air jetting nozzle 13A, 13B Dish insertion detection sensor 14 Rotating table 15 Washing basket 16 Basket sensor 17 Washing water pressure supply device 18 Blower motor 19 Operation switch panel 20 Control device

Claims (1)

[Claims] 1. A washing tank in which a washing water jet nozzle and a dry air jet nozzle are arranged, a dish insertion detecting means arranged in the washing tank, and a rotatably arranged bottom portion of the washing tank. A rotary table, a basket that can be mounted on the rotary table, means for detecting that the basket is mounted on the rotary table, means for supplying cleaning water to the cleaning water injection nozzle, and Means for supplying to the dry air jetting nozzle, and control means for operating the washing water jetting nozzle, the dry air jetting nozzle and the turntable in an arbitrary mode based on the detection signal from the tableware insertion detecting means and / or the basket detecting means A dishwasher including: