JP2000189523A - Potential treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an electric shock that a user suffers at the time of touching another conductor. SOLUTION: An electrode 15 detecting the human body potential of the user in contact with the user of a potential treatment device is provided and a filter 25 extracting discharged pulses from a potential waveform induced by a potential detecting electrode 15 and a comparator 26 inverting an output at the time of inputting the discharged pulses are provided to be connected with a control part 12. When the user touches a conductor and discharging is generated, the part 12 stops driving of a boosting transformer 13 and restarts energizing to an energizing sheet 14 a fixed period (several sec e.g.) later by a timer. Since the output of the transformer 13 is stopped by the first one wave of discharging, the user hardly feels the electric shock.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a potential therapy device for raising a human body to a high potential, and more particularly to a device for preventing an electric shock when a high potential human body touches another conductor. The present invention relates to a potential therapy device.

[0002]

2. Description of the Related Art It is known that when a high potential is applied to the human body, calcium ions in the blood increase, which has the effect of improving the health of an acid-inclined blood to make it weakly alkaline. A potential therapeutic device utilizing this potential action is commercially available.

As shown in FIG. 3, when using the electric potential treatment device 1, an insulating sheet 2 is laid on the floor, the plug of the cable 4 of the electric conduction sheet 3 is connected to the AC output jack of the electric potential treatment device, and the electric conduction sheet 3 is used. Is placed directly on the insulating sheet 2 or on a chair 5 or the like on the insulating sheet 2 so that the conductive sheet 3
When the user sits on the top, the human body in contact with the conductive sheet 3 has a high potential of several thousand volts with respect to the ground.
Incidentally, reference numeral 6 in the figure denotes an insulating mat on which a foot is placed.

When using a potential therapy device, it is necessary to maintain insulation between the user and the ground.
For example, when the insulation state is broken by touching a surrounding person or a metal object, a weak alternating current of a high voltage flows from the human body to the ground, which may cause an electric shock. Although this electric shock is not dangerous to the human body, it is unpleasant.

[0005] As a potential therapy device that has taken measures to prevent electric shock due to discharge, a resistor is inserted in series with the primary side circuit of a step-up transformer of the potential therapy device, and a discharge current is detected by a change in voltage across the resistor. There is known a configuration in which power supply is stopped when a current flows.

However, the current flowing at the time of discharging is very small and short, and it is difficult to distinguish it from high-frequency noise transmitted to the power supply line other than by discharging. Therefore, malfunction due to noise is likely to occur. Is inconvenient, and there is a problem in practicality.

Therefore, there arises a technical problem to be solved in order to reliably prevent electric shock due to electric discharge in the electric potential therapy device and to prevent malfunction due to noise to improve the practicality of the electric potential therapy device. An object of the present invention is to solve the above problems.

[0008]

SUMMARY OF THE INVENTION The present invention, which is proposed to achieve the above object, is directed to a potential treatment device which applies a high potential to a current-carrying body and applies a high potential to a human body via the current-carrying body. An electrode for detecting the potential of the human body, a filter for extracting a discharge pulse by removing an output potential waveform of the conductive body from a potential waveform induced on the electrode, and a potential for the conductive body according to the extracted discharge pulse. And a control circuit for stopping the output.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a circuit block of a potential therapy device 11, in which 12 is a control unit, and 13 is a step-up transformer. Reference numeral 14 denotes an energizing sheet, and 15 denotes an electrode which is brought into contact with a user of the potential therapy device to detect a human body potential of the user. Connected.

One end of the secondary winding of the step-up transformer 13 is connected to the primary side circuit through a resistor 18 of several tens of M ohms, and the other end of the secondary winding is connected through a resistor 19 of tens of M ohms. A high potential is applied to the conductive sheet 14 connected to the output jack 20 and connected to the output jack 20.

The control unit 11 includes a microcomputer 21
And a step-up transformer control circuit 22. An operation circuit board 23 is connected to the microcomputer 21. Although not shown, the operation circuit board 23 is provided with a start button, a stop button, a timer button, a voltage setting button, and an automatic course setting button. Each time the timer button is pressed, the treatment time is set to 20 minutes. , 40 minutes, and 60 minutes, and every time the voltage setting button is pressed, the output voltage becomes 3000 V, 6000 V, 900
It changes to 0V. For example, a time of 20 minutes and a voltage of 6000
If the voltage is set to V and the start button is pressed, the boosting transformer automatically stops after outputting 6000 V for 20 minutes.

If the automatic course selection button is pressed, an automatic course in which the output voltage changes stepwise during one cycle set at, for example, 20 minutes is executed. The program memory of the control unit stores a plurality of output pattern programs each having a different voltage change pattern as an automatic course, and an arbitrary automatic program can be selected.

The input jack 24 to which the cable 17 of the potential detecting electrode 15 is connected and the microcomputer 21
, A filter 25 and a comparator 26 are provided. The filter 25 removes the AC output waveform (50 Hz or 60 Hz) of the potential therapy device 11 from the potential signal detected via the potential detection electrode 15 and extracts only high frequency components. The comparator 26 inverts the output when the voltage signal passing through the filter 25 exceeds the reference voltage of the comparator 26, and the microcomputer 21 switches the on operation of the step-up transformer control circuit 22 off by the inverted signal. .

FIG. 2A shows a potential waveform of the energizing sheet 14, which is an AC wave of 50 Hz or 60 Hz. When a user on the energizing sheet 14 touches a metal or another person, FIG.
As shown in (B), the user discharges to another conductor, and a harmonic on a spike due to a voltage drop is superimposed on the AC waveform. At this time, as shown in FIG. 2 (C), harmonics due to discharge are extracted by the filter 25, and the output of the comparator 26 is inverted by the extracted pulse as shown in FIG. 2 (D). As a result, as shown in FIG. 2E, the microcomputer 21 turns off the step-up transformer control circuit 22 and cuts off the potential supply to the energizing sheet 14 for a certain time (for example, several seconds) by a timer.

In a conventional electric potential treatment device having no discharge detection circuit, while a user is in contact with a metal or another person, the electric potential treatment device is not connected to the electric potential treatment device.
Although the 0-cycle or 60-cycle electric shock is continuous and gives a very unpleasant sensation, the potential therapy device 11 of the present invention stops the potential output of the step-up transformer 13 in the first wave of the discharge. Almost no electric shock is felt.

The present invention is not limited to the above embodiment. For example, the pulse extracted by the filter 25 is extended through a pulse delay circuit to extend the pulse duration. Various modifications are possible within the technical scope of the present invention, such as a configuration in which the supply of potential is cut off, and it goes without saying that the present invention extends to those modifications.

[0017]

As described above, the potential therapy device of the present invention detects the potential of the human body directly by the electrodes, extracts the frequency component of the voltage change at the time of discharge, and stops the potential output at the time of discharge. With the configuration, the discharge of the human body can be reliably detected, the possibility of malfunction is reduced, and the potential output can be stopped in the first wave of the discharge.
At the time of discharge, the user hardly feels an electric shock, and the practicality of the electric potential therapy device is significantly improved.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram of a potential therapy device according to an embodiment of the present invention.

FIGS. 2A to 2E are timing charts of the operation of each unit of the electric potential therapy device.

FIG. 3 is an explanatory view showing a use state of the electric potential therapy device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 potential therapy device 12 control unit 13 step-up transformer 14 energizing sheet 15 potential detection electrode 21 microcomputer 22 step-up transformer control circuit 23 operation circuit board 25 filter 26 comparator

Claims (1)

[Claims] An electric potential treatment device for applying a high potential to a current-carrying body and applying a high potential to a human body through the current-carrying body. A potential therapy device comprising: a filter for removing a body output potential waveform to extract a discharge pulse; and a control circuit for stopping a potential output to a current-carrying body in accordance with the extracted discharge pulse.