JPH0628550U - Hot water supply device with water filling function - Google Patents

Abstract

(57) [Summary] [Purpose] In a hot water supply device with a water filling function that uses a water amount sensor, it is possible to fill water to the water level set by the user, regardless of the size of the bathtub. [Structure] 1 is a water heater with a water filling function, a heat exchanger 2 and a burner 3 for heating the water exchanger, a water amount sensor 5 on the outlet side of the heat exchanger 2, a water filling solenoid valve 9, and a heat exchanger. Exchanger 2
A hot water temperature detector 6 for detecting the temperature of the hot water is provided at a proper position. The control device 12 is provided with a maximum hot water filling amount selector switch 14 that switches the maximum hot water filling amount that can be set by the remote controller 13 in a plurality of steps. [Effect] There is no need to prepare a control device that varies the maximum amount of hot water depending on the size of the bathtub. It is less expensive than a water level sensor type device, and even once in a large capacity bath type compared to a conventional water level sensor type device. You can now fill the water with the operation.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water heater with a water filling function for filling a fixed amount of water into a bathtub, and a water filling amount setting means for a bath kettle with a water heater.

[0002]

[Prior art]

 As a conventional example that is technically closest to this invention, it has a water level sensor, a bath kettle with a water heater with a water filling function that stops the water filling when the water level reaches a certain level, and a water amount sensor. There is known a bath kettle with a hot water filling function that stops hot water filling after a certain amount of hot water is filled.

[0003]

[Problems to be solved by the device]

 However, in the case of using the water level sensor in such a conventional example, it is costly to use a highly accurate object, and the accuracy is low if an inexpensive object is used, and the water surface is not constant. There was a problem.

In addition, in the case of a bathtub having a large capacity, the one using the water amount sensor has an automatic water filling function, but the amount of water filling is not sufficient with one filling of water. There was a problem that the operation of additional hot water filling had to be performed again after the hot water filling had finished.

[0005]

[Means for Solving the Problems]

 The present invention has been made in view of such a conventional problem, and a switching means capable of setting the maximum amount of filling water according to the size of the bathtub in a water heater with a filling function using a water amount sensor. The purpose of the above is to solve the above problems.

[0006]

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an embodiment of the present invention. First, the structure will be described. 1 is a water heater with a water filling function, which has a heat exchanger 2, a burner 3 and the like inside. The inlet side of the heat exchanger 2 is connected to a water supply port 4, and the water supply port 4 is connected to a water supply source such as a water supply or a well pump.

A water flow switch 5 is provided between the heat exchanger 2 and the water supply port 4. A temperature detector 6 is provided at an appropriate position of the heat exchanger 2. The outlet side of the heat exchanger 2 is branched, and one side is connected to a faucet 7 for supplying hot water to a bathroom, a kitchen, a washroom or the like. The other branch is connected to a bath 11 through a water sensor 8, a water filling solenoid valve 9, and a check valve 10. Reference numeral 12 is a control device, 13 is a remote controller, and 14 is a maximum hot water filling amount changeover switch.

FIG. 2 is a detailed view of the remote controller 13 used in this invention. The remote controller 13 has a display unit 131 and an operation unit 132, and the display unit 131 displays a hot water supply temperature display 131a, a hot water filling temperature display 131b, a set water amount display 131c, a hot water filling display 131d, and the like. ing. Reference numeral 132a is an automatic hot water filling switch, 132b is a water amount setting switch, 132c is a hot water filling temperature setting switch, and 132d is a hot water supply temperature setting switch.

[0009]

[Action]

 First, the case of supplying hot water from the faucet will be described. When the faucet 7 attached to the bathroom, kitchen, etc. is opened, cold water flows into the heat exchanger 2 from the water supply source through the water supply port 4 and the water flow switch 5. At this time, the water flow switch 5 is turned on, the burner 3 starts to burn through the control device 12, and this heat causes the water passing through the inside of the heat exchanger 2 to be boiled up to the temperature displayed on the hot water supply temperature display 131a of the remote controller 13. In this way, hot water of a desired temperature can be supplied from the faucet 7.

Next, a case of automatically filling the bathtub 11 with hot water will be described. First, the water amount setting switch 132b is pushed. As a result, the minimum scale of 100 liters is displayed on the set water amount display 131c on the display unit 131. Depending on the size of the bathtub 11, this may be sufficient, but if it is too small, pressing it again will increase the volume to 150 liters, and then increase by 30 liters to reach the maximum set amount of 300 liters. At 300 liters, press the water volume setting switch 132b again to return to 100 liters.

When the desired amount of water has been set in this way, the desired temperature is then set with the hot water temperature setting switch 132c while observing the hot water temperature display 131b. That is, if you want to raise the set temperature, press the "↑" side switch, and if you want to lower it, press the "↓" side switch. This also applies to the operation of the hot water supply temperature setting switch 132d.

Then, when the automatic hot water filling switch 132a is pressed, the hot water filling solenoid valve 9 is opened through the control device 12, the hot water filling is started into the bathtub 11 through the check valve 10, and the water amount detected by the water amount sensor 8 is the above-mentioned value. The water filling solenoid valve 9 is opened until the amount of water displayed on the set water amount display 131c is reached.

Regardless of the setting of the hot water supply temperature display 131a, the burner 3 is controlled so as to reach the temperature displayed on the hot water supply temperature display 131b, and after the hot water filling is completed, the hot water supply temperature display 131a is displayed. Follow the settings in.

A bathtub with a filling volume of up to 300 liters can be used without any problem in the above-mentioned operation, but in the case of a large-capacity bathtub of 350 liters or 400 liters, the maximum size provided in the main controller 12 By switching the hot water filling switch 14 to the "400" side, the minimum scale of the set water amount display 131c is 150 liters, the second is 200 liters, and the maximum set amount is 400 liters by increasing by 40 liters. .

[0015]

[Effect of device]

 As described above, according to the present invention, since the maximum water filling amount switching switch is provided in the controller of the water heater main body, the water filling amount can be changed according to the setting of the remote controller, and the following effects can be obtained. It was

(1) It is not necessary to prepare a control device having a different maximum filling amount depending on the size of the bathtub (filling amount), and it is possible to easily cope with the trial operation at the installation site.

(2) Compared to the water level sensor type device, the performance is equivalent while the cost is reduced.

(3) Compared to the conventional water amount sensor type device, even if the water has a large capacity, the hot water filling operation can be performed only once, which improves usability.

[0019]

[Other Examples]

 A short-circuit wire or a short-circuit connector may be used instead of the maximum hot water filling switch, and 300 liters can be left when the short-circuit wire remains connected and 400 liters can be cut. Further, the maximum amount of hot water filling is not limited to 300 liters and 400 liters, and the number of switching stages can be set to 3 or more.

Further, although the present embodiment has been described based on the instantaneous hot water supply device, it is also possible to use a hot water storage hot water supply device. In the case of the hot water storage hot water supply device, the hot water supply pipe is branched to be referred to as the “hot water supply side”. It is easier to create a dedicated outlet for each, rather than the hot water side. The same thing can be done in the case of a bath kettle with a water heater in which a water heater and a bath kettle are housed in one casing.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a detailed view of the remote controller used in FIG.

[Explanation of symbols]

 1 Water Heater with Water Filling Function 2 Heat Exchanger 3 Burner 4 Water Supply Port 5 Water Flow Switch 6 Temperature Detector 7 Faucet 8 Water Volume Sensor 9 Water Filling Solenoid Valve 10 Check Valve 11 Bathtub 12 Control Device 13 Remote Control 131 Display 131a Hot Water Supply Temperature display 131b Hot water filling temperature display 131c Set water amount display 131d Hot water filling display 132 Operation part 132a Automatic hot water filling switch 132b Water amount setting switch 132c Hot water filling temperature setting switch 132d Hot water supply temperature setting switch 14 Maximum hot water filling switch

Claims (1)

[Scope of utility model registration request] 1. A water amount setting switch for setting the amount of hot water, a hot water supply temperature setting switch for setting hot water supply temperature, hot water filling temperature, a hot water filling temperature setting switch, and a display section for displaying these set values. A remote controller equipped with an automatic hot water filling switch for instructing automatic hot water filling, a heat exchanger inside, a burner for heating it, a water amount sensor provided on the outlet side of the heat exchanger, and a solenoid valve for hot water filling. In a hot water supply device having a temperature detector for detecting the temperature of hot water and a control device, the hot water filling device is provided with switching means for switching the maximum amount of hot water that can be set by a water amount setting switch in a plurality of stages. Hot water supply device with functions.