JP2006026146A - Static electric therapy apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a static electric therapy apparatus capable of imposing the arbitrary offset amount of electric potential on a living body by highly efficiently providing an arbitrary offset amount without making the apparatus heavier and larger, providing a waveform offset at a same ratio irrelevant to a loading state of a secondary side and having an extremely superior practical utility. <P>SOLUTION: This static electric therapy apparatus comprises a transformer, an AC voltage generating part generating an AC voltage to be inputted in a primary side of the transformer, and an electric field forming part forming an electric field by the AC voltage outputted from the secondary side of the transformer; and executes a static electric therapy for the living body in the electric field. The AC voltage generating part has a waveform generating part capable of forming a waveform whose positive voltage area and negative voltage area have same area but are asymmetric from each other, and inputs the offset waveform, which is so set that the negative voltage peak value becomes more than the positive voltage peak value, in the primary side of the transformer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric potential therapy device.

  Conventionally, by applying an AC high voltage to a living body as described in, for example, Japanese Patent No. 2609574 (Patent Document 1), an excitatory action by a positive voltage of an AC voltage and a sedative action by a negative voltage are given to the living body. Thus, there has been proposed an electric potential treatment device that stimulates metabolism of the living body and normalizes the functions of each part of the living body.

  For this, the voltage applied to the living body has a waveform in which the negative voltage peak value is larger than the positive voltage peak value, specifically, from an ideal ratio of positive / negative voltage ratio in the living body (positive 25: negative 75), A waveform having a positive voltage peak value to negative voltage peak value ratio (offset amount) of 25:75 is considered desirable.

  Therefore, in Patent Document 1, the peak value of the positive voltage and the negative voltage of the AC voltage input to the primary side of the transformer is changed to a circuit composed of a resistor and a diode having appropriate resistance values on the secondary side of the transformer. (Hereinafter referred to as “parallel circuit”), the offsets are set differently.

Japanese Patent No. 2609574

  However, when the power consumed by the resistance of the parallel circuit as described above becomes large (for example, when trying to obtain a large offset amount as described above), the offset amount is consumed by the parallel circuit and, of course, the efficiency is poor. In order to obtain a sufficient offset amount, it is necessary to increase the capacity of the transformer, resulting in an increase in weight and size.

  Further, since the offset amount changes due to the leakage current from the electric floor mat, an electric field cannot always be formed with the optimum offset amount, and a configuration that can arbitrarily switch the offset amount is desired. Is the current situation.

  In this case, it is certainly possible to change the offset amount by exchanging the resistance of the parallel circuit with one having a different resistance value, but the secondary side of the transformer becomes a high voltage. In addition, a high-voltage relay is required on the side, and switching the resistance value of the parallel circuit is extremely troublesome and impractical because of the high voltage in order to arbitrarily change the offset amount.

  The present invention has been made in view of the above situation, and it is not necessary to provide a resistor and a diode circuit on the secondary side of the transformer, and an arbitrary offset can be efficiently performed without increasing the weight and size of the device. It is possible to obtain a quantity, can apply a potential of an arbitrary offset amount to a living body, and can obtain an offset waveform regardless of the load condition on the secondary side. An electric potential treatment device is provided.

  The gist of the present invention will be described.

  The transformer includes an AC voltage generator that generates an AC voltage input to the primary side of the transformer, and an electric field generator that forms an electric field by the AC voltage output from the secondary side of the transformer. The alternating-current voltage generator has a waveform generator capable of forming a positive and negative asymmetric waveform with the same area in the positive voltage region and the negative voltage region. The present invention relates to a potential treatment device characterized in that an offset waveform set so that a negative voltage peak value is equal to or greater than a positive voltage peak value by a waveform generator is input to the primary side of the transformer. .

  2. The potential according to claim 1, wherein the waveform generating unit includes a positive voltage region forming unit that forms a waveform of a positive voltage region and a negative voltage region forming unit that forms a waveform of a negative voltage region. It relates to a treatment device.

  Further, the waveform generator may set the positive voltage peak value and the negative voltage peak value at an arbitrary stage within a ratio of the peak value of the positive voltage and the peak value of the negative voltage in the range of 50:50 to 10:90. Alternatively, the electric potential treatment device according to claim 1, wherein the electric potential treatment device is configured to be continuously switched.

  Since the present invention is configured as described above, an arbitrary offset amount can be efficiently obtained without increasing the weight and size of the apparatus, and a potential of an arbitrary offset amount can be applied to a living body. In addition, the potential therapeutic device can be obtained with extremely high practicality and can obtain a waveform offset to the same ratio regardless of the load condition on the secondary side.

  Further, in the invention described in claim 2, the present invention can be realized more easily and is more practical.

  In the invention according to claim 3, since the offset amount can be set more easily, the practicality is further improved.

  The preferred embodiment of the present invention (how to carry out the invention) will be briefly described, showing the operation of the present invention.

  The AC voltage input to the primary side of the transformer is boosted and output from the secondary-side electric field forming unit to form an electric field, and the living body is placed in the electric field, whereby potential treatment is performed on the living body.

  At this time, the AC voltage input to the primary side of the transformer has the same area in the positive voltage region and the negative voltage region, and a positive and negative asymmetric waveform, specifically, the duration differs in the positive voltage region and the negative voltage region. The offset waveform has the same area, and is boosted without direct current magnetizing the transformer.

  Since this offset waveform is a waveform in which the positive voltage region and the negative voltage region have the same area and different peak values, naturally, if the peak value is increased, the duration is shortened, and if the peak value is decreased, the duration is increased. .

  That is, the present invention increases the negative voltage peak value and shortens the duration (small positive voltage peak value and lengthens the duration) with the positive voltage region and the negative voltage region being the same area. Therefore, an offset is applied.

  Therefore, by inputting an asymmetric waveform in which the positive voltage peak value and the negative voltage peak value are set to a desired ratio (set to a desired offset amount) on the primary side, an electric field with an AC voltage having a desired offset amount is input. Can be formed.

  This is based on the fact that even if the waveform is offset, it can be boosted by a transformer if the positive and negative areas are the same. Therefore, it consists of a resistor and a diode on the secondary side that becomes a high voltage. There is no need to provide a parallel circuit, the circuit configuration can be simplified, and the problem of increased weight and size does not occur.

  In addition, since the parallel circuit does not exist on the secondary side of the transformer, the leakage current from the parallel circuit is eliminated, and the set offset amount can be prevented from changing. Furthermore, since the offset amount can be set to an arbitrary value where the areas of the positive voltage region and the negative voltage region are the same, potential treatment can always be performed at an arbitrary ratio.

  Further, since the offset waveform can be boosted by the transformer in proportion to the positive and negative peak values by making the positive and negative areas the same as described above, since there is no DC component, the transformer is DC magnetized. Therefore, the core material can be always boosted satisfactorily without magnetic saturation.

  In this regard, for example, when offset is performed by superimposing a direct current component on the alternating voltage, in addition to the problem of direct current magnetization, the positive and negative areas are not the same. If it is large, the living body will be negatively charged when added to the living body, but according to the present invention, such a problem does not occur.

  In addition, when a parallel circuit is provided as in the prior art, no current flows through the parallel circuit provided on the secondary side of the transformer, that is, a living body sits on a chair or the like provided with an electric field forming unit. If a load is not applied to the secondary side of the transformer, an offset waveform cannot be obtained, which is inconvenient when performing an explanation using an oscilloscope in a demonstration, for example. Without using the parallel circuit, a desired waveform is simply formed by the waveform generator, and this is input to the primary side of the transformer. Therefore, an offset waveform can be obtained regardless of the load condition on the secondary side. it can.

  For example, when the waveform generator has a positive voltage region forming unit that forms a waveform in the positive voltage region and a negative voltage region forming unit that forms a waveform in the negative voltage region, for example, the reverse of the PWM method A desired AC voltage waveform can be easily formed using a converter or the like.

  Further, for example, when the waveform generator is configured so that the ratio between the peak value of the positive voltage and the peak value of the negative voltage can be switched stepwise or continuously in the range of 50:50 to 10:90. The offset amount can be arbitrarily set easily.

  Specific embodiments of the present invention will be described with reference to the drawings.

  This embodiment includes a transformer, an AC voltage generator that generates an AC voltage input to the primary side of the transformer, and an electric field generator that forms an electric field using the AC voltage output from the secondary side of the transformer. A potential treatment device for performing potential treatment on a living body in this electric field, wherein the AC voltage generation unit has a positive voltage region and a negative voltage region that have the same area and can form a positive and negative asymmetric waveform. And an offset waveform set by the waveform generator so that the peak value of the negative voltage is larger than the peak value of the positive voltage is input to the primary side of the transformer.

  Specifically, the waveform generating unit includes a positive voltage region forming unit that forms a waveform of a positive voltage region and a negative voltage region forming unit that forms a negative voltage region, and a positive voltage peak value and a negative voltage The peak value of the positive voltage and the peak value of the negative voltage can be switched stepwise in a ratio of 50:50 to 10:90.

The waveform generator of this embodiment includes a CPU, an A / D converter, and a PWM (Pulse Width).
A control unit having a Modulation type inverse conversion device, and an operation unit and a display unit connected to the control unit.

  Further, the inverse conversion device includes an FET, and outputs a PWM pulse that forms a desired waveform by controlling and driving the FET by a previous FET driver, and the waveform generator A configuration in which a positive voltage region is formed (positive voltage region forming portion) and a negative voltage region is formed (negative voltage region forming portion) is provided.

  Each of the inverse conversion devices is connected to the primary side of the transformer via a capacitor for cutting a DC component. Further, a voltage dividing resistor for voltage measurement and a current limiting resistor for biological protection are provided on the secondary side of the transformer.

  A waveform forming program for forming an arbitrary AC voltage waveform is stored in the memory of the CPU, and the CPU sends data from the memory to the arithmetic device in response to an input from an operation switch as an operation unit. An arithmetic operation is performed, and the FET driver is driven to output a PWM pulse for forming a desired waveform by the inverse conversion device.

  In the present embodiment, the ratio of the positive voltage peak value to the negative voltage peak value (offset amount) is 50:50, 40:60, 30:70, 20:80, 10:90 by the operation of the operation switch. It is configured so that it can be automatically changed in five stages. In addition, you may comprise so that it can change in more steps, and you may comprise so that it can change in four steps or less. Moreover, you may comprise so that it can change continuously.

  Further, in the present embodiment, the peak value is set so that the area of the positive voltage region and the area of the negative voltage region are calculated by an arithmetic unit and both are equal. For example, in the case of 25:75 where the ratio is most desirable, the waveform is as shown in FIG. 2, that is, the ratio between the peak value and the duration is reversed between the positive voltage region and the negative voltage region. The resulting waveform.

  The PWM pulses are output separately for positive and negative, boosted by a transformer, and output. As shown in FIG. 1, this output is output from an electric field forming part built in the mat 1 in this embodiment, and forms an electric field around it.

  The output voltage waveform is A / D converted by the control unit by the voltage dividing resistor for measuring the output voltage and controlled to an arbitrary output, and is output to the display LCD or the display LED as the display unit.

  In addition, the code | symbol 2 in FIG. 1 is a local output terminal used when it is desired to make an electric field act on a part of living body.

  In this embodiment, the control unit, the transformer, the power supply circuit, the line filter, and the power supply unit including the power LED are housed in the box-shaped housing 3. That is, it can be made compact and easy to carry. In addition, the alternating voltage supplied to the primary side of a transformer can be changed by changing the output from a power supply part.

  The mat 1 including the electric field forming portion of this embodiment is laid on, for example, a chair 4 placed on an insulating sheet 5 that is insulated from the ground, and a living body sits on the chair 4 on which the mat 1 is laid and is in an electric field. Thus, the potential treatment is performed by waiting for a predetermined time. In the present embodiment, the mat 1 incorporating the electric field forming portion is laid on the chair 4, but may be laid on another place, for example, a futon. In other words, it may be installed anywhere as long as the insulation state is maintained.

  Since this embodiment is configured as described above, an AC voltage input to the primary side of the transformer is boosted and output from the secondary-side electric field forming unit to form an electric field, and a living body is placed in this electric field. Thus, when the potential treatment is performed on this living body, the alternating voltage input to the primary side of the transformer has the same area in the positive voltage region and the negative voltage region, and a positive and negative asymmetric waveform, specifically, the positive voltage region and This offset waveform has different durations and the same area in the negative voltage region, and is boosted without DC magnetizing the transformer.

  Since this offset waveform is a waveform in which the positive voltage region and the negative voltage region have the same area and different peak values, naturally, if the peak value is increased, the duration is shortened, and if the peak value is decreased, the duration is increased. .

  That is, the present invention increases the negative voltage peak value and shortens the duration (small positive voltage peak value and lengthens the duration) with the positive voltage region and the negative voltage region being the same area. Therefore, an offset is applied.

  Therefore, by inputting an asymmetric waveform in which the positive voltage peak value and the negative voltage peak value are set to a desired ratio (set to a desired offset amount) on the primary side, an electric field with an AC voltage having a desired offset amount is input. Can be formed.

  This is based on the fact that even if the waveform is offset, it can be boosted by a transformer if the positive and negative areas are the same. Therefore, in order to change the general offset amount, There is no need to provide a parallel circuit composed of a resistor and a diode on the secondary side, the circuit configuration can be simplified, and the problem of increased weight and size does not occur.

  Moreover, since the parallel circuit does not exist on the secondary side of the transformer, there is no leakage current from the parallel circuit, power consumption when offsetting can be reduced, and the set offset amount can also be prevented from changing. . Furthermore, since the offset amount can be set to an arbitrary value in which the areas of the positive voltage region and the negative voltage region are the same, potential treatment can always be performed at an arbitrary ratio.

  Further, since the offset waveform can be boosted by the transformer in proportion to the positive and negative peak values by making the positive and negative areas the same as described above, since there is no DC component, the transformer is DC magnetized. Therefore, the core material can be always boosted satisfactorily without magnetic saturation.

  In this regard, for example, when offset is performed by superimposing a direct current component on the alternating voltage, in addition to the problem of direct current magnetization, the positive and negative areas are not the same. If it is large, the living body will be negatively charged when added to the living body, but according to the present invention, such a problem does not occur.

  In addition, when a parallel circuit is provided as in the prior art, no current flows through the parallel circuit provided on the secondary side of the transformer, that is, a living body sits on a chair or the like provided with an electric field forming unit. If a load is not applied to the secondary side of the transformer, an offset waveform cannot be obtained, which is inconvenient when performing an explanation using an oscilloscope in a demonstration, for example. Without using the parallel circuit, a desired waveform is simply formed by the waveform generator, and this is input to the primary side of the transformer. Therefore, an offset waveform can be obtained regardless of the load condition on the secondary side. it can.

  In addition, the waveform generation unit includes a positive voltage region forming unit that forms a waveform in the positive voltage region and a negative voltage region forming unit that forms a waveform in the negative voltage region. This makes it possible to easily form a desired AC voltage waveform.

  In addition, the waveform generator is configured so that the ratio between the peak value of the positive voltage and the peak value of the negative voltage can be switched stepwise in the range of 50:50 to 10:90, so the offset amount can be set easily. It will be possible.

  Therefore, in this embodiment, it is possible to perform an appropriate potential treatment by setting an appropriate offset amount, and it is possible to efficiently obtain an arbitrary offset amount with a simple circuit configuration without causing an increase in weight and size. The potential therapeutic device can be applied to a living body with an appropriate potential for potential treatment, and can obtain an offset waveform regardless of the load condition on the secondary side.

  The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is a use condition figure of a present Example. It is a schematic explanatory drawing of the waveform of a present Example. It is a schematic explanatory drawing of the principal part of a present Example.

Claims (3)

  The transformer includes an AC voltage generator that generates an AC voltage input to the primary side of the transformer, and an electric field generator that forms an electric field by the AC voltage output from the secondary side of the transformer. The alternating-current voltage generator has a waveform generator capable of forming a positive and negative asymmetric waveform with the same area in the positive voltage region and the negative voltage region. An electric potential treatment device configured to input an offset waveform set by a waveform generator so that a peak value of a negative voltage is greater than or equal to a peak value of a positive voltage to the primary side of the transformer.   2. The electric potential therapy device according to claim 1, wherein the waveform generating unit includes a positive voltage region forming unit that forms a waveform of a positive voltage region and a negative voltage region forming unit that forms a waveform of a negative voltage region. . The waveform generator is configured to set a positive voltage peak value and a negative voltage peak value at an arbitrary stage or continuously in a ratio of a positive voltage peak value to a negative voltage peak value in a range of 50:50 to 10:90. The electric potential treatment device according to claim 1, wherein the electric potential treatment device is configured to be switched automatically.

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