JPH0827062B2 - Bath equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic bath hot water supply system using a remote control device.

2. Description of the Related Art In general, hot water supply to a bath is started by dropping the hot water into the bathtub at the time of bathing, and then manually operating a hot and cold water mixing tap while adjusting the hot water such as a shower or sashiyu.

4 and 5 are a conventional hot water supply piping system diagram for a bathroom and an external perspective view of related equipment. Reference numeral 101 is a heating source device, and a water supply pipe 104 in which a water stop valve 102 and a pressure reducing valve 103 are connected in the middle is connected to the lower part. The other branch of the water supply pipe is connected to the hot and cold water mixing tap 105 in the bathroom. On the other hand,
The hot water supply pipe 106 is from the upper part of the device 101
A safety valve 108 and a safety valve 108 are connected to the hot and cold water mixing valve 105. Either the shower 109 or the faucet 110 can be selectively used for the hot and cold water mixing valve 105 by switching the hot and cold water passage inside. That is, the hot and cold water mixing valve 105 is provided with the water supply knob 111,
Adjust the hot and cold water to your liking according to the opening / closing degree of the hot water supply knob 112, and operate the switching knob 113 to change the bathtub 114.
The shower 106 is selectively used for dropping the water from the faucet 110 and for supplying hot water.

Further, 115 is a hot water supply pressurizing pump, which is installed when the hot water supply pressure is low and a shower is used on the second floor or a high pressure such as a massage shower is required.

Problems to be Solved by the Invention However, in the above-described configuration, the hot water supply pressure pump 11
When 5 is not used, hot water decompressed by the pressure reducing valve 103 and water are supplied to the hot and cold water mixing tap 105, so that the hot and cold water mixing tap 1
Due to the pressure of the mixed water discharged from the shower 106 or the tap 110 of 05, it was impossible to use the shower on the second floor.
On the other hand, when the hot water supply pressure pump 115 is used, the conventional hot water supply pressure pump 115 starts and stops by detecting a change in the flow rate or water pressure in the hot water supply pipe caused by opening or closing of the hot and cold water mixing valve 105. Therefore, there was a problem that smooth tapping and stopping of water could not be performed due to the time lag of the operation, and pulsation occurred at a low flow rate. There is also a problem that the pressure balance of the hot water and the water changes greatly because the pressure is increased only in the hot water side circuit, which causes a large change in the hot water temperature of the mixed hot water.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to perform hot water supply with quick response by performing operation control by a remote controller.

Means for Solving the Problems In order to solve the above problems, a bath device according to the present invention comprises a hot-water storage water heater, and a mixing valve unit for mixing hot water from the water heater and water from the water supply to a set temperature. A direct current voltage driven pressure pump provided on the outlet side of the mixing valve unit, an electric water shutoff valve provided on the outlet side of the pressure pump, and an outlet of the water shutoff valve connected to the bathroom The hot water inlet unit provided, a DC voltage output control unit for controlling the operation of the pressurizing pump, the DC voltage output control unit, the mixing valve unit, and the water shutoff valve are connected to the mixing valve, the addition valve. This is a configuration provided with a pressure pump and a remote controller capable of opening / closing and opening / closing the water shutoff valve.

Operation With the above configuration, the pressure of the hot water supplied from the mixing valve unit to the hot water supply port unit is increased, and smooth hot water discharge, water stoppage, and hot water temperature adjustment can be performed.

Example Hereinafter, a bath apparatus according to an example of the present invention will be described with reference to the drawings.

In FIGS. 1A and 1B, reference numeral 1 is a hot water storage type water heater such as an electric water heater or a petroleum boiler.
A hot water supply pipe 10 having an air vent valve 9 is branched and extended to a bathroom 13, a kitchen, a washroom, and the like.

On the other hand, the water source is connected to general water supply, and a water supply pipe 12 having a pressure reducing valve 11 is extended to the water heater 1 and the bathroom 13.

A hot water supply pipe 10 and a water supply pipe 12 extending to a bathroom 13 are connected to a mixing valve unit 2, and this mixing valve unit is a DC voltage driven pressurizing pump (hereinafter referred to as pressurizing pump) 3, electric Hot water supply port unit provided near the bathtub 14 through a hot water supply pipe 16 having an electrically operated water shutoff valve (hereinafter referred to as a water shutoff valve) 4 such as a valve, solenoid valve, and thermal valve, and a vacuum break valve 15 Connected to 5.

Reference numeral 6 denotes a remote controller (hereinafter referred to as a remote controller) provided in the bathroom 13, which is a control unit of the mixing valve unit 2, a DC voltage output control unit of the pressurizing pump 3 (hereinafter referred to as an inverter control unit) 702, and a water stoppage. It is electrically connected at low voltage to a control unit 7 having the control of the valve 4.

Next, the operation unit of the remote controller 6 will be described with reference to FIG.

The remote controller 6 is provided with a switch section for operating the mixing valve unit 2, the pressurizing pump 3 and the water shutoff valve 4 via the control unit 7, and for the user to input the condition of hot water supplied from the hot water inlet unit 5. There is.

61 is a hot water temperature control switch having a high temperature side switch 62 and a low temperature side switch 63, 64 is a flow rate control switch having a large flow rate side switch 65 and a small flow rate side switch 66, and 67 is set by the hot water temperature control switch 61. It is a hot water temperature indicator showing the hot water temperature. Further, reference numeral 68 is a hot water supply switch which can alternately perform hot water discharge and water stop under the set conditions.

Next, the remote controller 6, the control unit 7, the mixing valve unit 2, the pressurizing pump 3 and the water shutoff valve 4 will be described in detail with reference to FIG.

When the user supplies hot water, the hot water supply switch 68 of the remote controller 6
When is operated, the signal is transmitted to the water shutoff valve control unit 701 and the flow rate comparison unit 704 in the control unit 7 at the same time, and the water shutoff valve 4 is opened, and at the same time, the inverter control unit 702 operates the pressurizing pump 3 to discharge hot water. Here, the DC output from the inverter control unit 702 controls the rotation speed of the pressurizing pump 3 so that the hot water discharge flow rate set by the flow rate adjusting switch 64 is achieved. Also,
The detection signal of the flow rate sensor 17 provided in the hot water supply pipe is always input to the flow rate comparison unit 704 during hot water discharge, and is compared with the flow rate setting value set by the flow rate adjustment switch 64 and input.
As a result, the inverter control unit 702 adjusts the flow rate to the set value.
Operates the pressure pump 3.

Even when the user operates the flow rate adjusting switch 64 to change the set flow rate while tapping hot water, the DC output voltage from the inverter control unit 702 is changed so that the newly set flow rate is obtained, and the pressurizing pump is also changed. The hot water flow rate is changed by changing the number of rotations of 3.

On the other hand, the hot water temperature set value of the hot water temperature adjusting switch 61 of the remote controller 6 is input to the hot water temperature comparing unit 705 of the control unit 7, where the hot water temperature sensor 18 provided in the mixing valve unit 2 is provided.
The hot water temperature is detected by the mixing valve control unit 703, and the hot water temperature is adjusted.

At this time, the set hot water temperature is displayed on the hot water temperature display 67. Similarly, when the hot water temperature adjustment switch 61 is operated during hot water to change the hot water temperature set value, the new hot water temperature set value input by the hot water temperature comparison unit 705 and the detected value of the hot water temperature sensor 18 are compared. Then, the mixing valve control unit 703 operates the mixing valve unit 2 so as to reach the new set hot water temperature, and the hot water temperature is adjusted.

In this embodiment, the inverter control unit 702, the water shutoff valve control unit 701,
An example in which the mixing valve control unit 703 is assembled in the control unit 7 is shown, but even if they are provided separately, the same operation and effect can be obtained by connecting the electric signal of the remote controller 6 to each of them. be able to.

According to the above configuration, the following effects can be obtained.

Hot water supply and water stoppage are performed by direct operation control of the water stop valve 4 and the pressurizing pump 3 at the same time by a signal from the remote controller 6, so that hot water supply with quick response without pressure fluctuation such as pulsation can be performed.

Even on the second floor or in a place where the water supply pressure is low, the action of the pressurizing pump 3 enables the use of a shower with a sufficient pressure and flow rate.

By changing the output of the inverter control unit 702 steplessly, the amount of hot water discharged can also be changed steplessly, and a shower with a smooth and comfortable feeling can be obtained.

By changing the output of the inverter control unit 702, a large flow rate and pressure can be obtained even if a small pressurizing pump 3 is used, so that the device is compact and space is saved.

By providing the pressurizing pump 3 on the outlet side of the mixing valve unit 2, a single pressurizing pump can pressurize and supply hot water mixed at an appropriate temperature, so that a stable hot water temperature can be obtained.

The use of a DC voltage driven pressurizing pump allows operation at low voltage and is relatively safe even in the event of an electrical leakage accident. In addition, even in the unlikely event of a power failure, backup with a DC power source such as a battery is possible, and a highly reliable and safe bath device can be obtained.

As described above, according to the bath device of the present invention, a DC voltage driven pressurizing pump, an electric water shutoff valve, and a hot water inlet unit are provided on the outlet side of the mixing valve unit in the above order, and
A DC voltage output control unit for controlling the operation of the pressurizing pump, a mixing valve unit, and a remote controller electrically connected to the water shutoff valve are provided, and the direct pressure pump, the water shutoff valve, and the mixing unit are directly synchronized with this signal. By starting, stopping, opening, and closing, it is possible to supply hot water with a stable hot water pressure to the hot water inlet unit, which improves usability when using a shower or the like. That is, since the pressurizing pump starts to operate simultaneously with the opening of the water shutoff valve in synchronization with the water shutoff valve based on the output from the remote controller, the pressurizing pump operates by the change in the flow rate or water pressure due to the opening of the water shutoff valve. There is no time lag between these two movements like those that begin to occur, smooth and stable tapping of water pressure is possible, and pulsation at low flow rate or fluctuation of hot water temperature of mixed hot water can be suppressed, Usability is improved. In addition, the amount of hot water discharged is not affected by the resistance of water from the mixing valve unit to the hot water supply port unit, and a large amount of hot water can be obtained with a compact pressure pump.

[Brief description of drawings]

1A is a schematic piping diagram of a bath apparatus according to an embodiment of the present invention, FIG. 1B is an external perspective view showing a piping system of the apparatus, FIG. 2 is an external perspective view of a remote controller of the apparatus, FIG. FIG. 4 is a block diagram of the same apparatus, FIG. 4 is a schematic piping diagram of a conventional bath apparatus, and FIG. 5 is an external perspective view showing a piping system of the conventional apparatus. 1 ... Water heater, 2 ... Mixing valve unit, 3 ... Pressurizing pump, 4 ... Water stop valve, 5 ... Hot water inlet unit, 6 ...
… Remote controller, 702 …… DC voltage output controller, 13 …… Bathroom.

Claims (1)

[Claims] Claim: What is claimed is: 1. A hot water storage type water heater, a mixing valve unit for mixing hot water from the water heater and water from the water supply to a set temperature, and a DC voltage drive unit provided on the outlet side of the mixing valve unit. A pressure pump, an electric water shutoff valve provided on the outlet side of the pressure pump, a hot water supply port unit connected to the outlet of the water shutoff valve and provided in the bathroom, and the operation of the pressure pump is controlled. A direct current voltage output control unit, a direct current voltage output control unit, a mixing valve unit, and a water stop valve electrically connected to the remote controller for controlling them, the pressurizing pump from the remote controller. A bath device that directly controls the start and stop of the output based on the output in synchronization with the stop valve.