阅读说明：本技术 餐具清洗系统 (Tableware cleaning system ) 是由 北村将章 林润哉 于 2020-01-20 设计创作，主要内容包括：本发明提供一种餐具清洗系统。供热水器(1)的控制部(14)判定通过设置在第2供热水路(8)上的水量传感器(8a)检测到的淋浴头(4)处的热水量是否是规定阈值以上。当淋浴头(4)处的热水量是规定阈值以上时(步骤6中为“是”),控制部(14)进行控制,使得从供热水器(1)经由遥控器(2)向餐具清洗机(3)发送清洗暂停信号,餐具清洗机(3)接收清洗暂停信号,暂停清洗工序(步骤7)。(The invention provides a tableware cleaning system. A control unit (14) of a water heater (1) determines whether or not the amount of hot water at a shower head (4) detected by a water amount sensor (8a) provided in a 2 nd hot water supply path (8) is equal to or greater than a predetermined threshold value. When the amount of hot water in the shower head (4) is equal to or greater than a predetermined threshold value (YES in step 6), the control unit (14) controls the water heater (1) to transmit a washing pause signal to the dish washing machine (3) via the remote controller (2), and the dish washing machine (3) to receive the washing pause signal and pause the washing process (step 7).)

1. A dish washing system comprising a dish washing machine for washing dishes and a hot water supply device capable of supplying hot water to a plurality of water supply target units including the dish washing machine and communicating with the dish washing machine,

the dish washing system is characterized by comprising a control part,

the control unit performs the following control: the control unit performs a suppression control of limiting a supply amount of hot water to be supplied to the dish washing machine when there is a request for supplying hot water to the dish washing machine in a state where the supply amount of hot water to be supplied to a water supply target unit other than the dish washing machine is equal to or more than a predetermined threshold value; the suppression control is not performed when there is a request for supplying hot water to the dishwasher in a state where the supply amount of hot water supplied to the other water supply target portion is smaller than the predetermined threshold value.

2. The dish washing system of claim 1,

the hot water supply device is provided with a combustion device which works when hot water with a specified flow rate is supplied from the hot water supply device,

the prescribed threshold is the prescribed flow rate.

Technical Field

The present invention relates to a dish washing system including a dish washing machine and a hot water supply device.

Background

Conventionally, there is known a kitchen device in which a dish washing machine and a hot water supply device provided in a kitchen (System kitchen) or the like are connected so as to be able to communicate with each other (see, for example, japanese patent application laid-open No. 10-311599).

In the dish washing system described in japanese patent application laid-open No. 10-311599, the hot water supply device can supply hot water to a plurality of water supply target units including the dish washing machine, and when the hot water supply device supplies hot water to a water supply target unit other than the dish washing machine, the hot water supply to the dish washing machine is permitted only when the set temperature of the dish washing machine is substantially the same as the hot water supply set temperature, whereby the hot water temperature in the other water supply target units can be prevented from being changed.

However, in the dish washing system disclosed in japanese patent application laid-open No. 10-311599, even when the hot water supply device supplies hot water to a different water supply target unit other than the dish washing machine, when the set temperature of the dish washing machine is substantially the same as the hot water supply set temperature, the hot water is supplied from the hot water supply device to the dish washing machine, and therefore, the amount of hot water supplied to the different water supply target unit is greatly reduced by the use of hot water in the dish washing machine, and the user feels dissatisfied.

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in view of the above-described background, and an object of the present invention is to provide a dish washing system capable of suppressing a decrease in the amount of hot water supplied to another water supply target part due to the use of hot water in a dish washing machine.

Means for solving the problems

The dish washing system of the present invention includes a dish washing machine configured to wash dishes, and a hot water supply device configured to supply hot water to a plurality of water supply target units including the dish washing machine and to communicate with the dish washing machine, and is characterized by including a control unit configured to control: the control unit performs a suppression control of limiting a supply amount of hot water to the dish washing machine when there is a request for supplying hot water to the dish washing machine in a state where the supply amount of hot water to the other water supply target portion is equal to or greater than a predetermined threshold; the suppression control is not performed when there is a request for supplying hot water to the dishwasher in a state where the supply amount of hot water supplied to the other water supply target portion is smaller than the predetermined threshold value.

According to the present invention, since the suppression control is performed when the supply amount of the hot water supplied to the other water supply target portion is equal to or greater than the predetermined threshold value, it is possible to suppress a decrease in the supply amount of the hot water supplied to the other water supply target portion due to the use of the hot water in the dishwasher. When the supply amount of the hot water supplied to the other water supply target portion is smaller than the predetermined threshold value, the above-described suppression control is not performed, and therefore, the predetermined hot water can be supplied to the dishwasher.

In addition, it is preferable that the hot water supply device includes a combustion device that operates when hot water of a predetermined flow rate is supplied from the hot water supply device, and the predetermined threshold value is the predetermined flow rate.

The user may want to use a small amount of hot water in another water supply target portion. However, if the flow rate is small, water may be supplied to the combustion equipment when the combustion equipment is not in operation, or hot water at a predetermined temperature may not be supplied by repeating ignition and fire extinguishing.

According to the above configuration, when there is a request to supply hot water to the dishwasher in a state where water of a flow rate smaller than a predetermined flow rate required for operation of the combustion device is used in the other water supply target portion, the above suppression control is not performed on the dishwasher. When hot water is supplied to the dishwasher, water at a flow rate equal to or higher than a predetermined flow rate at which the combustion device operates is supplied. Therefore, when the dish washing machine is operated, the combustion device is operated to supply hot water from the hot water supply device to the other water supply target portion and the dish washing machine. This enables a small amount of hot water of a predetermined temperature to be used in other water supply target portions.

Drawings

Fig. 1 is an explanatory diagram showing a dish washing system according to an embodiment of the present invention.

FIG. 2 is a flow chart showing the operation of the dish washing system.

Detailed Description

An embodiment of the dish washing system of the present invention will be described with reference to fig. 1 and 2.

As shown in fig. 1, the dish washing system a includes a water heater 1 (hot water supply device), a remote controller 2 as a remote operation unit of the water heater 1, a dish washing machine 3 (water supply target unit) installed in a kitchen, a faucet installed in a hot water supply place 5 such as a bathroom or a sink, and a hot water tap (shower head 4 in the present embodiment) such as a shower.

The main hot water supply path 6 connected to the water heater 1 at the start end is branched into a 1 st hot water supply path 7 connected to the dishwasher 3 and a 2 nd hot water supply path 8 connected to the shower head 4 (water supply target portion). The 2 nd hot water supply path 8 is provided with a water amount sensor 8a that detects the amount of hot water flowing in the 2 nd hot water supply path 8 (the usage flow rate in the shower head 4). The water amount sensor 8a is connected to a control unit 14 of the water heater 1, which will be described in detail later.

The water heater 1 includes a heating device 9 (combustion device). When the dish washing machine 3 and the shower head 4 are used to generate water flow in the main hot water supply passage 6 and a predetermined flow rate is detected by the water flow sensor 6a provided in the main hot water supply passage 6, the heater 9 starts hot water supply by heating water to a desired temperature, and hot water supply of a so-called pre-stop type (first stop め type) is performed. The water flow sensor 6a may be provided inside the water heater 1.

The heating device 9 includes a gas burner 11 for burning gas supplied from the gas pipe 10 and a heat exchanger 13 for heating water supplied from the water supply pipe 12 by the combustion of the gas burner 11. The heating device 9 is controlled by a control unit 14 that collectively controls the water heater 1. The control unit 14 controls the heating device 9 based on the hot water supply temperature (for example, 35 to 80 ℃) set by the operation of the temperature setting unit 15 provided in the remote controller 2. The remote controller 2 includes a display unit 16, and the display unit 16 displays setting contents set by the operation of the temperature setting unit 15. The control unit 14 can operate even when the power supply of the water heater 1 is turned off.

The water heater 1 includes a communication unit 17 for communicating various information with the remote controller 2. As will be described later, the dishwasher 3 also includes a communication unit 18 for communicating various information with the remote controller 2. The remote controller 2 is provided with an operation switch 19 that can be switched between on and off, and the operation switch is configured to turn on the heating device 9 when water flows, and to turn off the heating device 9 when hot water is not required.

The remote controller 2 further includes a set temperature changing unit 20, a hot water supply operation monitoring unit 21, and a washing operation instruction unit 22. The detailed operation of these means will be described later, and the set temperature changing means 20 changes the set temperature set by the temperature setting means 15 to a temperature suitable for dish washing (for example, 60 ℃). The hot water supply operation monitoring unit 21 monitors whether or not the water heater main body is in the hot water supply operation. The washing operation instructing unit 22 instructs the dish washing machine 3 to start the washing operation.

The dish washing machine 3 has a dish storage chamber 23 for storing and washing dishes W to be washed. The dishes storage chamber 23 is supplied with hot water from a hot water supply pipe 24 connected to the 1 st hot water path 7. The hot water supply pipe 24 is provided with a water supply valve 25 that can be opened and closed. As will be described later in detail, when dish washing machine 3 is operated to perform washing and rinsing, water supply valve 25 is opened and closed.

A storage tank 26 for temporarily storing hot water supplied through the hot water supply pipe 24 is provided at a lower portion of the dishes storage chamber 23. The storage tank 26 is provided with a heater 27, and the heater 27 reheats and keeps warm the hot water stored in the storage tank 26 when the temperature of the hot water is lower than the activation temperature of the detergent. The hot water stored in the storage tank 26 is used as a cleaning liquid by feeding a detergent into a detergent feeding means not shown. Further, the dishwasher 3 is provided with a drying fan (not shown) which is rotated in a state where the heater 27 is operated, and warm air is sent into the dishes storage chamber 23 to dry the dishes W.

A washing pump 30 is connected to a lower portion of the storage tank 26, and the washing pump 30 sends out the washing liquid filtered by the residue filter 28 to a spray pipe 29 disposed in the dish storage chamber 23. The spray pipe 29 includes a plurality of spray nozzles (not shown) for spraying the cleaning liquid toward the dishes W. A drain pump 31 and a drain pipe 32 as drain means are connected to a lower portion of the storage tank 26. Although not shown, the drain pipe 32 is provided with a trap (トラップ) having an upper end located above the upper end of the storage tank 26.

The dishwasher 3 includes an operation switch 33 and a washing operation control unit 34 (control unit), and the user instructs washing of the dishes W by operating the operation switch 33, and when the operation is instructed by the washing operation instruction unit 22 and the operation switch 33, the washing operation control unit 34 controls the washing operation in the complicated steps of water supply, washing, draining, and drying. The dishwasher 3 further includes a notification unit 38 that notifies, for example, that the washing operation is in standby by display or voice.

Next, the operation of the present embodiment will be described with reference to a flowchart shown in fig. 2.

As shown in fig. 2, in step 1, the user operates the operation switch 33 (see fig. 1) (requests the supply of hot water to the dish washing machine 3) to operate the dish washing machine 3.

When the operation of the dishwasher 3 is started, the water is first drained (step 2), and after the drainage is completed, the washing process including the water supply is started (step 3). In the drain step, the washing operation control unit 34 operates the drain pump 31 to drain the water stored in the storage tank 26 through the drain pipe 32. At this time, the water supply of the dish washing machine 3 is not started.

In the dish washing system a, when the washing process is started by the dish washing machine 3, a washing process start signal is transmitted from the communication unit 18 of the dish washing machine 3 to the remote controller 2, and the remote controller 2 transmits a washing process start signal to the communication unit 17 of the water heater 1.

When the hot water supply unit 1 receives the cleaning process start signal, the control unit 14 of the hot water supply unit 1 determines whether or not the power supply of the hot water supply unit 1 is on (step 4). When the power supply of the water heater 1 is on (yes in step 4), the process proceeds to step 6, and when the power supply of the water heater 1 is not on (no in step 4), the control unit 14 of the water heater 1 turns on the power supply of the water heater 1 (step 5), and thereafter, the process proceeds to step 6.

In step 6, the control unit 14 of the water heater 1 determines whether or not the amount of hot water supplied to the shower head 4 (hereinafter, referred to as the amount of hot water supplied to the shower head 4) detected by the water amount sensor 8a provided in the 2 nd hot water supply path 8 is equal to or greater than a predetermined threshold value. In the present embodiment, the predetermined threshold value is set to the same value as the amount of water (predetermined flow rate) for heating the water to a desired temperature by operating the heating device 9, but the predetermined threshold value may be appropriately changed or may be set by the user.

When the hot water amount of the shower head 4 is equal to or more than the predetermined threshold value (yes in step 6), the controller 14 causes the water heater 1 to transmit a washing pause signal to the dish washing machine 3 via the remote controller 2, and the washing operation controller 34 of the dish washing machine 3 suspends (suppresses control of) the washing process upon receiving the washing pause signal (step 7). Then, step 6 is executed again.

On the other hand, when the hot water amount of the shower head 4 is not equal to or larger than the predetermined threshold value (smaller than the predetermined threshold value) (no in step 6), the controller 14 transmits a water supply permission signal from the water heater 1 to the dish washing machine 3 via the remote controller 2, and the washing operation controller 34 of the dish washing machine 3 receives the water supply permission signal and supplies water to perform washing (step 8).

The washing step is performed by the operation of the washing operation control unit 34, and specifically, a preliminary washing operation for washing off rough dirt of the dishes W is performed first, and then a main washing operation is performed. That is, in the preliminary cleaning operation, the water supply valve 25 is opened to store a predetermined amount of hot water in the storage tank 26, and when the predetermined amount of hot water is stored in the storage tank 26, the water supply valve 25 is closed. Then, the washing pump 30 is operated to spray the hot water in the storage tank 26 to the dishes W through the spray nozzle, and the drain pump 31 is operated to discharge the hot water that rises and falls with the dirt on the dishes W.

In the main washing operation, the water supply valve 25 is opened to store hot water in the storage tank 26, and when a predetermined amount of hot water is stored in the storage tank 26, a detergent is injected and the water supply valve 25 is closed. Then, the washing pump 30 is operated to spray the hot water (washing liquid) in the storage tank 26 toward the dishes W. At this time, the washing liquid rising and falling from the dirt on the dishes W passes through the storage tank 26 and the residue filter 28 again and is sprayed toward the dishes W by the washing pump 30. After the above-described washing operation is performed for a predetermined time, the washing operation control unit 34 stops the operation of the washing pump 30 and operates the drain pump 31. Thereby, the washing liquid falling together with the dirt of the dishes W is discharged through the drain pipe 32.

After the washing is completed (step 9), the washing operation control unit 34 of the dishwasher 3 starts the rinsing process (step 10), and transmits a rinsing process start signal to the water heater 1 via the remote controller 2. At this time, the water supply of the dish washing machine 3 is not started.

When the rinsing step start signal is received by the water heater 1, the control unit 14 of the water heater 1 determines whether or not the power supply of the water heater 1 is on (step 11). Hereinafter, step 11 to step 13 are the same steps as step 4 to step 6, and therefore the description thereof is simplified.

When the hot water amount of the shower head 4 is equal to or more than the predetermined threshold value (yes in step 13), the control unit 14 controls the water heater 1 to transmit a rinse pause signal to the dishwasher 3 via the remote controller 2, and the washing operation control unit 34 of the dishwasher 3 suspends (suppresses and controls) the rinsing process by receiving the rinse pause signal (step 14). Then, step 13 is executed again.

On the other hand, when the amount of hot water in the shower head 4 is not equal to or greater than (less than) the predetermined threshold (no in step 13), the control unit 14 controls the water supply permission signal to be transmitted from the water heater 1 to the dish washing machine 3 via the remote controller 2, and the washing operation control unit 34 of the dish washing machine 3 supplies water and performs rinsing in response to the water supply permission signal (step 15). In the rinsing step, the same treatment as in the above-described washing step performed without adding detergent is repeated, and hot water is sprayed to the dishes to rinse the dishes.

Next, after the rinsing is finished (step 16), the washing operation control unit 34 of the dishwasher 3 transmits a rinsing finish signal to the water heater 1 via the remote controller 2.

When the rinsing end signal is received in the water heater 1, the control unit 14 of the water heater 1 determines whether or not the power supply of the water heater 1 is on (step 17). When the power supply of the water heater 1 is on (yes in step 17), the controller 14 performs control to detect whether the water heater 1 is being used outside the dish washing machine 3 (shower head 4) (step 18). The detection is performed based on the amount of hot water detected by the water amount sensor 8a provided in the 2 nd hot water supply path 8.

When the water heater 1 is not used other than the dishwasher 3 (no in step 18), the control unit 14 controls to turn off the power supply of the water heater 1 (step 19), and then transmits a drying start signal to the dishwasher 3 via the remote controller 2.

When the power supply of the water heater 1 is not turned on (no in step 17), or when the water heater 1 is used other than the dishwasher 3 (yes in step 18), a drying start signal is transmitted to the dishwasher 3 via the remote controller 2.

Upon receiving the drying start signal, the washing operation control unit 34 of the dishwasher 3 performs drying (step 20). In the drying step, the drying fan is rotated while the heater 27 of the dish washing machine 3 is activated, and warm air is sent into the dish storing chamber 23 to dry the dishes W.

In the present embodiment, when the hot water amount of shower head 4 is equal to or greater than the predetermined threshold value (yes in steps 6 and 13), dish washing machine 3 suspends the washing step and the rinsing step (step 7), and therefore, it is possible to prevent the hot water amount of shower head 4 from decreasing due to the water supply operation in dish washing machine 3. This can prevent the amount of hot water in the shower head 4 from decreasing and causing the user to be dissatisfied.

If the hot water amount of the shower head 4 is not equal to or greater than the predetermined threshold value (no in steps 6 and 13), the dishwasher 3 can perform the washing step and the rinsing step. Thus, for example, when the shower head 4 uses a small amount of water (less than a value for operating the heating device 9), the dish washing machine 3 can be operated.

In the dish washing system a, there are cases where the user wants to use a small amount of hot water with the shower head 4. However, when the flow rate of the shower head 4 is small, the heating device 9 may be not operated to supply water, or may be repeatedly ignited and extinguished to supply no hot water at a predetermined temperature.

In the present embodiment, the predetermined threshold is set to a value (predetermined flow rate) at which the heating device 9 operates. According to this configuration, when there is a demand for supplying hot water to dishwasher 3 while shower head 4 is using water at a flow rate lower than the predetermined flow rate required for operation of heating device 9, the suppression control of dishwasher 3 is not performed (the washing step and the rinsing step are suspended). In the present embodiment, when hot water is supplied to dishwasher 3, hot water at a flow rate equal to or higher than a predetermined flow rate required for operation of heating device 9 is supplied. Therefore, by operating the dishwasher 3, the heating device 9 is also operated, and hot water of a predetermined temperature is supplied from the water heater 1 to the shower head 4 and the dishwasher 3. Thereby, a small amount of hot water at a given temperature at the shower head 4 can be used.

In the above embodiment, the hot water is supplied from the water heater 1 to the dish washing machine 3 and the shower head 4 which are water supply target portions, but the water supply target portion to which the hot water is supplied from the water heater 1 is not limited, and may be, for example, a hot water faucet, a hot water washing toilet seat, or the like.

In the above embodiment, when the hot water amount of the shower head 4 is equal to or more than the predetermined threshold value (yes in steps 6 and 13), the dish washing machine 3 may suspend the washing step and the rinsing step (steps 7 and 14), and at least the supply amount of the hot water to the dish washing machine 3 may be limited to be suppressed, or the washing step and the rinsing step may be performed using a water amount smaller than the normal water amount by a predetermined amount or less, instead of suspending the washing step and the rinsing step. In this case, the washing step and the rinsing step can be performed without suspending the washing step and the rinsing step, and the time required for washing dishes can be shortened.

In the above embodiment, step 9 and step 16 are set as the steps for finishing the cleaning or rinsing, but step 9 and step 16 may be set as the steps for determining whether the cleaning or rinsing is finished, and when the cleaning or rinsing is finished, the process proceeds to step 10 and step 17, and when the cleaning or rinsing is not finished, the process proceeds to step 6 and step 13 again. In this case, even when the shower head 4 starts to be used during use of the dishwasher 3, the amount of hot water in the shower head 4 can be prevented from being reduced.

In the above embodiment, steps 17 to 20 are performed. However, steps 17 to 20 may not be performed.

In the above embodiment, the water heater 1 and the dish washing machine 3 are connected so as to be able to communicate with each other via the remote controller 2. However, the water heater 1 and the dish washer 3 may be connected directly and in a communicable manner.

In the above embodiment, the water amount sensor 8a is provided in the 2 nd hot water supply path 8, but the water amount sensor 8a may be provided inside the dish washing machine 3 or in the hot water supply pipe 24. In this case, the amount of hot water in the dishwasher 3 is detected by the water amount sensor 8a, and the amount of hot water used in the shower head 4 can be estimated from the difference between the detected amount of hot water and the amount of hot water supplied from the hot water supply unit 1 detected by the water flow sensor 6 a.

In the above embodiment, the water heater 1 having the heating device 9 as the combustion device using the gas has been described, but the present invention can be implemented also in a water heater using electricity.