JPH0552425A - Method for controlling circulating pump in bathwater heater - Google Patents

Abstract

(57) [Summary] [Purpose] A method for controlling a circulation pump of a bath kettle,
An object of the present invention is to provide a method using a self-priming circulation pump, which can prevent the self-priming time of the circulation pump from becoming long even when the bath water is operated in a weak circulation mode. [Structure] The bath water is circulated in the bathtub 13 by the self-priming circulation pump 14 so that it can be heated, and the operation of the circulation pump is switched between strong and weak depending on the strong circulation mode and weak circulation mode of the bath water. A method for controlling the circulation pump of a bathtub device capable of
Even when the weak circulation mode is commanded, the circulation pump is strongly operated until the water flow detection switch 16 in the circulation path detects the water flow.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating pump control method for a bath kettle device.

[0002]

2. Description of the Related Art Conventionally, for example, in a bath pot device having a bubble bath operation function, the bath water is strongly circulated to the bath pot during the bubble bath operation and weaker than in the bubble bath operation at other times. Cycle the bath water, such as by circulating it 2
It may be performed in more than one mode. And in that case
The operation of the circulation pump is switched depending on the strength of the circulation mode.

[0003]

However, in the case where the circulation pump is a self-priming pump, when the pump is weakly operated in accordance with the circulation mode, the circulation pump is operated at the start of the pump operation. It has a drawback that the self-priming time before starting to send water becomes long.

Therefore, the present invention solves the above-mentioned drawbacks of the prior art and uses a self-priming type circulation pump, and the self-priming time of the circulation pump is long even when the bath water is operated in the weak circulation mode. It is an object of the present invention to provide a method for controlling a circulation pump of a bathtub device that can prevent such a situation.

[0005]

In order to achieve the above object, the method of the present invention enables the bath water to be circulated and heated in a bath kettle by a self-priming circulation pump, and the circulation pump is operated. A method for controlling the circulation pump of a bath hook device, wherein the bath water is switched between strong and weak circulation modes depending on whether the circulation mode is weak circulation mode is commanded at the start of circulation operation. However, the circulation pump is strongly operated until the water flow detection switch of the circulation path detects the water flow.

[0006]

Even if the weak circulation mode is set, the circulation pump is strongly operated until the water flow detection switch detects the water flow in the circulation path, so that the self-priming time of the circulation pump is shortened. That is, the time from the start of pump operation to the circulation of bath water is shortened. Of course, when the circulation is started, the circulation pump is switched to the weak operation corresponding to the weak circulation mode, so that the circulation can be performed in the predetermined circulation mode without any problem.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings. FIG. 1 is an overall configuration diagram of a bathtub device in which the method of the present invention is implemented, and FIG. 2 is a flowchart showing an embodiment of the method of the present invention. The water in the bathtub 10 is guided from the circulation fitting 11 through the circulation path 12 to the bath kettle 13. A self-priming circulation pump 14 and a heat exchanger 15 are provided in the bath kettle 13, and a water flow detection switch 16 is provided in the circulation path 12. Information on the water flow detection switch 16 is input to the controller 17. In response to a command from the remote controller 18, the controller 17 controls each part of the device according to a predetermined program. The circulation fitting 11 has an air introduction pipe.
19 and its on-off valve 20 are connected.

A strong circulation mode and a weak circulation mode can be set as the circulation mode of the bath water. For example, in the strong circulation mode, the circulation pump 14 is operated strongly and the air introduction pipe 19
Air is introduced from and the strong operation of the bubble bath is performed. Further, in the weak circulation mode, the circulation pump 14 is weakly operated and the additional heating operation is performed. In addition, weak operation of the bubble bath is done.

Next, the controller of the circulation pump 14 when the bath pot device is operated in a bubble bath or is reheated.
An example of control by 17 will be described with reference to FIG. Remote control now
When the circulating operation as the reheating operation or the bubble bath operation is instructed by the 18 (step 51), the controller 17 thereby starts the circulation pump 14 in the strong operation (step 52). Then, wait for the ON signal from the water flow detection switch 16 (signal indicating that water flow has occurred) (step
53) When turned on, it is judged whether or not the commanded circulation operation is in the weak circulation mode (step 54), and if it is in the weak circulation mode, the circulation pump 14 is switched to the weak operation (step 55). If it is not in the weak circulation mode (strong circulation mode), the operation is continued as it is (step 56).

In the above-described embodiment, there are two types of circulation modes, strong and weak. However, even when the circulation mode is more than that, the circulation pump can be strongly operated until the water flow detection switch is turned on. The present invention includes such cases in its scope.

[0011]

According to the present invention, which has the above-mentioned structure,
According to the circulating pump control method for a bathtub device described in, in the bathtub device using the self-priming circulation pump, the water flow detection switch detects the water flow from the start of the circulation operation even when the weak circulation mode is instructed. Until then, since the circulation pump is strongly operated, the self-priming time from the start of the circulation pump operation to the circulation of bath water can be shortened. Moreover, the circulation condition of the bath water can be reliably adjusted to the specified circulation mode.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a bathtub device in which the method of the present invention is implemented.

FIG. 2 is a flowchart showing an embodiment of the method of the present invention.

[Explanation of symbols]

 10 Bathtub 12 Circulation path 13 Bath kettle 14 Self-priming circulation pump 16 Water flow detection switch 17 Controller

Claims (1)

[Claims] 1. The bath water is circulated in a bath kettle by a self-priming circulation pump so that it can be heated, and the operation of the circulation pump is switched between strong and weak in accordance with a strong circulation mode and a weak circulation mode of the bath water. A method for controlling the circulation pump of a bathtub device capable of
A circulating pump control method for a bathtub device, wherein the circulating pump is strongly operated until the water flow detection switch in the circulation path detects a water flow even when a weak circulation mode is commanded.