JPH0595982A - Apparatus for generating air bubble in bath - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object to obtain a bubble generating device in a bath in which the temperature detection part can be easily adjusted and the function is highly reliable. [Structure] A control circuit unit for controlling a function by disposing a temperature detection unit 7 for detecting a temperature in the main body 1 and sending a signal to a control circuit unit 6 in the main body 1 corresponding to an upper layer portion in a bath. 6 is arranged in the main body 1 corresponding to the lower layer portion in the bath, the control circuit portion 6 is not affected by the temperature of the hot water floating in the upper layer portion due to convection, and electronic components of the control circuit 6 are provided. It is possible to increase the difference between the upper limit temperature of the temperature range in which is normally operated and the detection temperature of the temperature detection unit 7, and it is easy to adjust the detection temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for generating bubbles in a bath provided with means for preventing malfunction of a control circuit.

[0002]

2. Description of the Related Art In recent years, an in-bath bubble generating device has been widely used for the purpose of recovering from fatigue by the massage effect of bubbles in the bath and for maintaining health and beauty.

Conventionally, this type of bubble generating device in the bath has a structure as shown in FIGS. 2 and 3.

The structure will be described below with reference to FIGS. 2 and 3. In the figure, the main body 1 includes a battery 2 on the lower side, a motor 3 on the upper side, an operation unit 4 and a display unit 5 on the upper side of the motor 3, and a control circuit unit for controlling functions by operating the operation unit 4 on the side of the motor 3. 6 and the control circuit unit 6
Each of the temperature detection units 7 that detects the ambient temperature and sends a signal to the control circuit unit 6 is liquid-tightly installed. Motor 3
An impeller 8 is rotatably attached to the rotating shaft of the device, sucks hot water from a water suction port 9 and discharges a jet from a discharge port 10. Reference numeral 11 denotes an intake pipe, which supplies air into the jet flow by an ejector action.

In the above structure, the in-bath bubble generating device is detachably attached to the bath wall of the bathtub 14 by the suction plate 12, the mounting tool 13 or the like, or floated in the bath. In this state of use, the control circuit unit 6 and the temperature detection unit 7 are located in the upper layer portion near the water surface W in the bath, and the temperature detection unit 7 detects the ambient temperature of the control circuit unit 6 which rises in temperature due to the hot water in the upper layer portion. Then, the signal is sent to the control circuit unit 6.

This detection of the ambient temperature is intended to prevent electronic parts such as a microcomputer mounted in the control circuit section 6 from being malfunctioned due to thermal influence.
Generally, the temperature range in which the electronic components such as the microcomputer described above normally function is about -20 ° C to 70 ° C.
Therefore, the temperature detection unit 7 sends a signal to the control circuit unit 6 to stop its function when the ambient temperature of the control circuit unit 6 reaches about 60 ° C., so that electronic parts such as a microcomputer do not malfunction. As a result, malfunction of electronic components such as a microcomputer due to the temperature of hot water that is supplied from the boiler or the like to the bathtub 13 for repelling and floats to the upper layer by convection, for example, about 90 ° C., can be prevented. ing. The temperature of the hot water in the bathtub 13 is higher in the upper layer portion than in the lower layer portion, so that the temperature detecting unit 7
Are arranged in the main body 1 corresponding to the upper layer portion in the bath.
In addition, the control circuit unit 6 includes a motor 3, an operation unit 4, and a display unit 5.
It is installed near the to facilitate wiring work.

[0007]

In such a conventional in-bath bubble generating apparatus, since the control circuit section 6 is arranged in the main body 1 corresponding to the upper layer section in the bath, an electronic device such as a microcomputer is provided. The difference between the upper limit temperature of 70 ° C. in the temperature range in which the component functions normally and the temperature of 60 ° C. detected by the temperature detection unit 7 becomes small, the margin of adjustment of the detection temperature is small, the adjustment becomes difficult, and unnecessary. There is a problem that reliability is lacked by causing a function stop or causing a malfunction without stopping the function. Further, if the difference is increased, the difference from the bathing temperature becomes smaller, and the same problem as described above occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a highly reliable bubble generating device in a bath in which detection temperature can be easily adjusted.

[0009]

In order to achieve the above object, the present invention provides a control circuit section for controlling a function in a main body corresponding to a lower layer portion in a bath and detects a temperature in the main body. The temperature detecting part is arranged in the main body corresponding to the upper layer part in the bath.

[0010]

According to the present invention having the above-mentioned structure, the control circuit is not affected by the temperature of the hot water which is supplied to the bath at the time of recharging and is floated to the upper layer by convection. The difference between the upper limit temperature of the temperature range in which the electronic component normally functions and the temperature detected by the temperature detection unit can be increased.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

The same parts as those shown in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

The control circuit portion 6 is arranged in the main body 1 corresponding to the lower layer portion in the bath, in other words, in the lower portion of the main body 1.
In addition, the temperature detector 7 is the main body 1 corresponding to the upper layer part in the bath.
In other words, in other words, the main body 1 is located below the water surface W in the upper portion of the main body 1 and rises at the temperature of the upper layer portion of the hot water in the bathtub 14.
It is arranged to detect the temperature inside.

In the above structure, when hot water is supplied to the bathtub 14 from the boiler or the like for recharging, the hot water floats by convection and the temperature of the upper part in the main body 1 rises. When this temperature reaches the temperature detected by the temperature detecting unit 7, the temperature detecting unit 7 sends a signal to the control circuit unit 6 to stop the function of the control circuit unit 6. At this time, since the control circuit unit 6 is located at the lower portion of the main body 1, its ambient temperature is a temperature suitable for bathing or lower, and much lower than the temperature range 70 ° C. in which electronic parts such as a microcomputer normally function. The temperature is only around 40 ° C., for example.

Therefore, the temperature detected by the temperature detector 7 is
The temperature can be set to a temperature between 90 ° C. of hot water supplied from a boiler or the like and a temperature slightly higher than the bathing optimum temperature, for example, 50 ° C. This facilitates adjustment of the detection temperature of the temperature detection unit 7 and increases the margin between the detection temperature and the temperature of the hot water supplied or the appropriate bathing temperature, so that the control circuit unit 6 stops unnecessary functions. It is possible to improve reliability because it does not cause a malfunction or malfunction without stopping the function.

[0016]

As is apparent from the above description of the embodiments, according to the present invention, the control circuit portion for controlling the function is arranged in the main body corresponding to the lower layer portion in the bath, and the temperature inside the main body is controlled. By arranging the temperature detection part to detect the temperature in the main body corresponding to the upper layer part in the bath, the control circuit part is supplied to the bathtub at the time of repulsion, and the influence of the temperature of the hot water levitated to the upper layer part by convection It is possible to increase the difference between the upper limit temperature of the temperature range in which the electronic component such as the microcomputer normally functions and the temperature detected by the temperature detection unit without receiving the temperature.

As a result, it is possible to provide a highly reliable in-bath bubble generating device, which has a large margin for adjusting the detected temperature, is easy to adjust.

[Brief description of drawings]

FIG. 1 is a side sectional view of a bubble generating device in a bath according to an embodiment of the present invention.

FIG. 2 is a side sectional view of a conventional bubble generating device in a bath.

FIG. 3 is a perspective view showing a state in which the in-bath bubble generating device is attached to the bath.

[Explanation of symbols]

 1 Main body 6 Control circuit 7 Temperature detector

Claims (1)

[Claims] 1. A main body, a control circuit unit that is installed in the main unit, and controls functions, and a temperature detection unit that detects a temperature in the main body and sends a signal to the control circuit unit. An in-bath bubble generating device, wherein a control circuit section is provided in the main body corresponding to the lower layer portion in the bath, and the temperature detecting section is provided in the main body corresponding to the upper layer portion in the bath.