JPH07260172A - Hot water feeder - Google Patents

Abstract

PURPOSE:To provide a hot water feeder in which its temperature can be easily set to a desired temperature without looking at a hot water temperature setting part. CONSTITUTION:There are provided a mixed hot water temperature setting means 13 for setting a temperature of mixed hot water of hot water and cold water and a mixing ratio rate adjusting means 11 for adjusting a mixing ratio of hot water and the cold water in response to a set temperature set by a mixed hot water temperature setting means 13. The mixed hot water temperature setting means 13 has a plurality of switch inputting parts Si for the set temperature range and each of the switch inputting parts Si is maintained at each of the set temperatures.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply device capable of obtaining a mixed hot water having a desired temperature by adjusting the mixing ratio of hot water and water.

[0002]

2. Description of the Related Art Conventionally, in this type of hot water supply apparatus, as shown in FIG. 4, a hot water temperature setting knob 1 is used to set a mixed hot water temperature, and a switch knob 2 is operated to supply water to the faucet 3 side, the shower 4 side or the hot water supply side. This is to select the destination.

As shown in FIG. 5, the mixing ratio of the hot water and the water supplied from the hot water flow path 5 and the water flow path 6 is adjusted by a mixing valve 7 whose mixing hot water temperature is set by the hot water temperature setting knob 1. Then, the gas reaches the switching / flow rate control valve 9 through the mixed hot water flow path 8.
The switching / flow rate control valve 9 selects either the faucet 3 or the shower 4 by the switching knob 2 and adjusts the flow rate.

In the above structure, the operation for supplying hot water will be described. First, the hot water temperature setting knob 1 is operated to set a desired mixed hot water temperature, and the switching knob 2 is used to set the switching / flow rate control valve 9 to the faucet 3. Alternatively, switch to either shower 4. Then, when the switching knob 2 is switched to the shower 4 side, the mixed hot water set by the operation of the hot water temperature setting knob 1 is supplied from the shower 4.

[0005]

However, in the above conventional apparatus, when the user wants to change the set hot water temperature during the shower, the hot water temperature setting knob 1 is turned to reset the hot water temperature. There is almost no operation of the hot water temperature setting knob 1 by stopping the supply of water, and generally, the user operates the hot water temperature setting knob 21 with his eyes closed, or without looking at the hot water temperature setting knob 1. I was operating.

Therefore, depending on the operation amount of the hot water temperature setting knob 1, the hot mixed water may be suddenly supplied from the shower 4. The present invention has been made in view of the above problems, and an object thereof is to provide a hot water supply device that can easily set a desired temperature without looking at the hot water temperature setting unit.

[0007]

According to the present invention, there is provided a mixed hot water temperature setting means for adjusting the temperature of the mixed hot water in a hot water supply apparatus for adjusting the mixing ratio of hot water and water and discharging the mixed hot water having a desired temperature. A mixing ratio adjusting means for adjusting the mixing ratio based on the set temperature by the mixed hot water temperature setting means, wherein the mixed hot water temperature setting means has a plurality of switch input sections for the set temperature range, and each switch The input parts are characterized by being maintained at their respective set temperatures.

Further, the mixed hot water temperature setting means includes a plurality of switch input sections for a set temperature range, a plurality of heating means for heating each switch input section, and a plurality of detecting the temperature of each switch input section. The switch temperature detecting means and the temperature adjusting means for controlling the heating means based on the output of the switch temperature detecting means so that each switch input section maintains the set temperature.

[0009]

According to the present invention, since the plurality of switch input portions of the mixed hot water temperature setting means are maintained at their respective set temperatures, each can be touched with a fingertip or the like without looking at the hot water temperature setting means. The set temperature of the switch input section is known.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing an embodiment thereof. FIG. 1 is a schematic block diagram showing the configuration of the hot water supply device of the present invention. Incidentally, the above-mentioned conventional device (FIG. 4,
The same components as those in FIG. 5) are designated by the same reference numerals.

In FIG. 1, reference numeral 11 is a stepping motor as a mixing ratio adjusting means for controlling the opening of the mixing valve 7 and adjusting the mixing ratio of hot water and water from the hot water passage 5 and the water passage 6.
Reference numeral 12 denotes a mixed hot water temperature detecting means which is provided in the mixed hot water flow path 8 and detects the mixed hot water temperature, and is composed of a thermistor.

Reference numeral 13 denotes a mixed hot water temperature setting means for arbitrarily setting the mixed hot water temperature set temperature in the range of 33 to 43 degrees in steps of 1 degree.
Is a control unit for driving and controlling the stepping motor 11 based on the set temperature set by the mixed hot water temperature setting means 13 and the temperature detected by the mixed hot water temperature detecting means 12.

The mixed hot water temperature setting means 13 includes a switch portion 15, a heater portion 16 and a switch temperature detecting means 1.
7 and temperature adjusting means 18. As shown in FIG. 2, the switch unit 15 is set within the range of 33 to 43 degrees.
Eleven switch input sections S provided corresponding to each step
i (i = 1 to 11), and the heater section 16 is a heater Hi (i = 1 to 1) made of nichrome wire as 11 heating means provided on the lower surface of each switch input section Si.
Each switch input section Si is individually heated by 1).

The switch temperature detecting means 17 includes heaters Hi.
11 thermistors Ti (i = 1 to 1) provided on the lower surface of the
The temperature of each heater Hi is detected by 11). The temperature adjusting means 18 detects the output of each thermistor Ti at a preset temperature, for example, T1 = 33, T2 = 34,
The on / off control of each heater Hi is performed so that T11 = 43.

Further, the switch section 15 is provided with a light emitting means 2 for confirming the switch input section Si depressed at the time of depression.
1 is provided, and the light emitting means 21 includes eleven light emitting diodes Li provided in each switch input section Si.
(I = 1 to 11).

A switch unit 15 is connected to the control unit 14, and when any one of the switch input units Si is pressed, the pressed switch input unit Si controls the control unit 14.
A set temperature command signal is output to the control unit 14, and the control unit 14 drives and controls the stepping motor 11 so that the temperature detected by the mixed hot water temperature detection unit 12 becomes the set temperature. In this embodiment, hot water at 60 degrees and water at 10 degrees are supplied from the hot water flow path 5 and the water flow path 6.

Therefore, according to the present invention, since the mixed hot water temperature is set by operating the switch input section Si maintained at the same temperature as the set temperature, the sensible temperature transmitted from the fingertip without looking at the hot water temperature setting section. It can be set to a desired temperature.

Next, the hot water temperature setting operation of the hot water supply apparatus of the present invention will be described with reference to the flowchart of FIG. First,
The heater section 16 is heated by the temperature adjusting means 18, and the temperature of each switch input section Si of the switch section 15 is set to 3 in order from S1.
On / off control of each heater Hi is performed so as to be 3, 34, ..., 43 degrees (S1).

Next, it is determined whether any one of the switch input sections Si of the switch section 15 has been pressed, and if YES, the process proceeds to the next step S5 (S3). In step S5, the set temperature input in step S3 is output to the control section 14 as a set temperature command signal, and at the same time, the light emitting diode Li provided in the pressed switch input section Si is output.
Light up.

In the next step S7, it is determined whether or not hot water is currently being supplied. If YES, the process proceeds to step S9 and NO.
In case of, it returns to step S3. In step S9, the stepping motor 11 is driven and controlled so that the temperature detected by the mixed hot water temperature detecting means 12 becomes the set temperature input in step S3, the opening of the mixing valve 7 is controlled, and the process proceeds to step S11.

In step S11, it is judged whether an operation end command, that is, whether or not the power source is turned off. If YES, the hot water temperature setting operation is ended, and if NO, step S11.
Return to 3.

By the above operation, even when the user wants to change the set hot water temperature during the shower, the hot water temperature is set by the sensible temperature transmitted from the fingertip without looking at the hot water temperature setting section. The desired temperature can be set accurately and easily, and a hot water mixture having a temperature different from the desired temperature cannot be suddenly supplied due to an operation error.

In the above embodiment, the case where the opening ratio of the mixing valve 7 is controlled to adjust the mixing ratio of the hot water from the hot water passage 5 and the water from the water flow passage 6 has been described. 5 and the supply amount from the water channel 6 may be adjusted individually.

[0024]

As described above, according to the present invention, since the plurality of switch input portions of the mixed hot water temperature setting means are maintained at their respective set temperatures, the fingertips can be looked at without looking at the hot water temperature setting portion. You can know the set temperature of each switch input section by touching with.

Therefore, it is possible to accurately and easily set the temperature of the mixed hot water to a desired temperature by touching without looking at the hot water temperature setting portion, and a mixed hot water having a high temperature different from the desired temperature is suddenly supplied due to an operation error. There is nothing to do.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a hot water supply device of the present invention.

FIG. 2 is an external view showing a schematic configuration of a mixed hot water temperature setting means 13 of the apparatus of FIG. 1 embodiment.

FIG. 3 is a flowchart for explaining the contents of a hot water temperature setting operation of the hot water supply device of the present invention.

FIG. 4 is an external view of a conventional hot water supply device.

5 is a flow path configuration diagram of the conventional device shown in FIG.

[Explanation of symbols]

 1 Hot water temperature setting knob 2 Switching knob 3 Faucet 4 Shower 5 Hot water flow path 6 Water flow path 7 Mixing valve 8 Mixing hot water flow path 9 Switching and flow control valve 11 Stepping motor (mixing ratio adjusting means) 12 Thermistor (mixed hot water temperature detecting means) ) 13 mixed hot water temperature setting means 14 control section 15 switch section 16 heater section 17 switch temperature detecting means 18 temperature adjusting means 21 light emitting means

Claims (2)

[Claims] 1. A hot water supply device for adjusting the mixing ratio of hot water and water to discharge hot water having a desired temperature, and a hot water temperature setting means for setting the temperature of the hot water, and a setting by the hot water temperature setting means. And a mixing ratio adjusting means for adjusting the mixing ratio based on the temperature, wherein the mixed hot water temperature setting means has a plurality of switch input parts for a set temperature range, each switch input part to the respective set temperature. A hot water supply device characterized by being maintained. 2. The mixed hot water temperature setting means comprises a plurality of switch input parts for a set temperature range, a plurality of heating means for heating each switch input part, and a plurality of means for detecting the temperature of each switch input part. Switch temperature detecting means and temperature adjusting means for controlling the heating means based on the output of the switch temperature detecting means so that each switch input section maintains the respective set temperature. The hot water supply device according to claim 1.