JPS5915633Y2 - electric moxibustion device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to an electric breathing device.

2. Description of the Related Art Conventionally, as a substitute for moxibustion therapy, there has been known an electric breath relief device configured to apply a pulse voltage to a breath relief iron using a heater such as a resistance wire.

However, in the conventional electric breathing device, no consideration was given to the voltage waveform applied to the breathing iron, and therefore, the same sufficient therapeutic effect as when using a trowel could not be obtained.

In order to improve the above-mentioned drawbacks, the creator of this device pursued the heat generation condition of conventional moxibustion therapy, and as a result, the temperature characteristics exerted on the human skin are as shown in Figure 9. When the temperature rises, it rises at a relatively gentle slope in about 10 seconds, and the maximum temperature is about 50°C to 90°C.
It has been found that effective moxibustion therapy can be carried out due to the property of rapidly descending after reaching a certain level.

On the other hand, the safety iron used in conventional electric moxibustion devices is nothing more than a gripping rod with a heating element attached to the tip, and even if the waveform of the pulse voltage applied to the heating element is Even if the temperature characteristic curve of the above-mentioned orifice is approximated, it is difficult to approximate the temperature characteristic of the resistance heating element on the skin due to the structure of the respiratory iron of the above-mentioned respiratory device.

In addition, since the heating element of the safety iron is small, it is difficult to attach it to the gripping rod, but in order to obtain the above-mentioned temperature characteristics, the rod that fixes the heating element is designed to have less heat effect. In order to do so, the fixing mechanism was complicated, and the manufacturing cost of the safety iron was high.

Furthermore, as mentioned above, the resistance heating element is heated rapidly, and therefore, it is easily damaged due to sudden thermal changes in the resistance heating element itself, and is unsatisfactory in terms of durability. Ta.

This invention was made to solve the various problems mentioned above.

The first objective is to provide an electric respiratory device with high therapeutic effects that has heat generation characteristics similar to those of other devices.

The second purpose of this invention is to attach a heat-generating part made of a resistor to the tip of a rod-shaped body made of a printed circuit board, etc., and to connect the heat-generating part to the rod-shaped body through a small space formed at the tip of the rod-shaped body. By attaching it to the heat generating part, the heat generating efficiency of the heat generating part is increased and the durability is increased, and by making the heat generating characteristic faithful to the waveform of the applied pulse voltage, it is possible to easily create a heat generating characteristic similar to that of the other heat generating part. The object of the present invention is to provide an electric breathing device that can be realized.

An embodiment of this invention will be described below with reference to the accompanying drawings.

In Figures 1 to 4, 1 is an ignition iron, and an insulating plate portion of the tip 3a is cut out at the tip of a long and narrow printed circuit board 3 with conductive metal foils 2, 2 pasted on both sides. Then, the metal foil parts 2a, 2a of the printed circuit board are made to protrude, and a groove 4 for heat insulation is formed, and this groove 4 is separated,
It is constructed by attaching a heat generating plate 5 of a small rectangular chip resistor.

As shown in FIG. 4, the heating plate 5 is a rectangular electrically insulating substrate, for example, 2.5 mm x 2.5 mm x 0.5 mm.
A metal film-like resistor 7 is formed on one side of a 6 mm alumina ceramic substrate 6 by vapor deposition or the like, and electrodes 8 are formed on both ends of the resistor 7.

The heat generating plate 5 is attached to the printed circuit board 3 so that its insulator side surface is the front side of the ceramic substrate 6.

By applying the insulator-side surface of the heating plate 5 to the breathing skin surface of the disaster victim, the pulse signal applied to the resistor 7 of the heating plate 5 is prevented from leaking to the victim. ing.

Both electrodes 8, 8 of this heating plate 5 are conductive metal foil portions 2a on both surfaces of the tip portion 3a of the printed circuit board 3, respectively.
It is soldered to 2a.

Solder is indicated by 9. Further, lead wires 10a,
10a is soldered.

As shown in FIG. 3, the ignition iron 1 is housed at the tip of a light pen-shaped plastic case 11 so that the surface of the ceramic substrate 6 of the heat generating plate 5 is exposed. A cap 12 is removably screwed onto the rear end of the cap.

Reference numeral 13 denotes a push button type switch for issuing a health emergency command, which is inserted into the electronic device 20 that applies voltage to the ignition iron.

By pressing the switch 13, the heating plate 5
As shown in FIG. 6, a pulse voltage with a sawtooth waveform is applied between the two electrodes 8, 8, and due to the heating action of the resistor 7,
The heating plate 5 is heated.

FIG. 5 is a specific circuit diagram showing an example of the electronic device 20 for power supply to a heating element.

In this electronic device 20, 21 is an electronic timer, for example, N
It is an integrated circuit module known as E555.

This electronic timer 21 includes a movable contact 13-1, a fixed contact 13-2, and a power switch 2 of the switch 13 of the ignition iron 1.
2, it is connected to a battery 23 which outputs a predetermined voltage, for example, 6.times.2, and is also connected to a time constant circuit 26 comprising a resistor 24 and a capacitor 25.

The output terminal 27 of the electronic timer 21 is connected to a waveform shaping circuit 32 consisting of a resistor 28, a variable resistor 29, a capacitor 30, and a diode 31, and a resistor 33.
and a delay circuit 35 connected to the capacitor 34.

The output terminal 36 of the waveform shaping circuit 32 is connected to the base of a driving transistor 38 which is complementary connected to a control transistor 37 supplied with power from the battery 23 via the power switch 22.

The collector of the control transistor 37 and the emitter of the drive transistor 38 are connected to one electrode 8 of the heat generating plate 5, and also connected to the other electrode 8 of the heat generating plate 5 and the negative terminal of the battery 23. ing.

Furthermore, another fixed contact 13- of the switch 13
3 is connected to a connection point between the resistor 33 and the capacitor 34 of the delay circuit 35.

A resistor 40 and a light emitting diode 41 are connected between the output side contact of the switch 22 and the negative terminal of the battery 23, and the light emitting diode 41 lights up when the switch 22 is closed, indicating that the electronic device 20 is ready for operation. It is designed to display that it is.

Further, a resistor 42,
A light emitting diode 43 is connected, and this light emitting diode 4
3 lights up when the heat generating plate 5 is supplied with power from the transistors 37 and 38 to indicate that it is in a state of respiratory distress.

Next, the operation of the electric breather having the above-mentioned configuration will be explained.

By closing the power switch 22, a predetermined voltage of the battery 23 is supplied to the circuit.

The normally closed contact 13-2 of the switch 13 is connected to the power supply via the resistor R2, and in this state, the electronic timer 21 does not operate and the output terminal 27 is at zero potential.

Therefore, the charge in the capacitor 30 of the waveform shaping circuit 32 is discharged through the diode 31 and the transistor (not shown) in the electronic timer 21, and the potential at the output terminal 36 is also approximately zero.

Here, the exposed surface of the heat-generating plate 5 at the tip of the breathing iron 1, that is, the breathing effect surface, is applied to the breathing area of the victim's skin, and then the switch 13 is activated momentarily.

That is, if the movable contact 13-1 of the switch 13 is momentarily switched to the fixed contact 13-3 side and then returned to the 13-2 side, a trigger pulse is input to the input terminal 2 of the electronic timer 21, and the electronic timer is activated. At the output terminal 27 of this electronic timer 21,
A rectangular pulse having a pulse width corresponding to the time constant of the time constant circuit 26 is output.

This rectangular pulse is transmitted through the diode 31 of the waveform shaping circuit 32.
The diode 31 becomes non-conductive, and charging of the capacitor 30 starts from the battery 23 via the variable resistor 29 and the resistor 28, and the variable resistor 29 and the resistor 28 of the waveform shaping circuit 32 The potential at the output terminal 36 rises exponentially in accordance with a time constant determined by the capacitor 30 and the capacitor 30.

The base potential of the driving transistor 38 rises in accordance with the rise in the potential of the output terminal 36, and the voltage amplified by the transistors 38 and 37 is applied to the heat generating plate 5 in accordance with this potential.

This time point is defined as t□. As a result, as shown in FIG. 6, a voltage that increases exponentially is applied to the heating plate 5 of the health care iron 1 during the time T determined by the time constant of the time constant circuit 26 from time t1, and heat is generated. Due to the heat generating action of the resistor 7 of the plate 5, the temperature of the ceramic substrate 6 of the heat generating plate 5 increases almost linearly.

Then, the voltage at the output terminal 27 of the electronic timer 21 becomes zero at time t2 when time T has elapsed from time t1, and the charge in the charged capacitor 30 of the waveform shaping circuit 32 is transferred to the diode 31. It is instantaneously discharged through a transistor (not shown) in the electronic timer 21.

Therefore, the potential of the output terminal 36, that is, the base potential of the transistor 38 becomes zero, and the outputs from the transistors 38 and 37 become zero.

As a result, the voltage applied to the heat generating plate 5 becomes zero immediately after time t2, as shown in FIG.
The temperature drops rapidly depending on the heat dissipation coefficient of itself and the skin.

In this way, as shown in FIG.
It receives a pulse signal with a roughly sawtooth waveform, performs one heat generation operation with temperature change characteristics that approximate the waveform of this pulse signal, and then applies a knife to the victim's skin to see the temperature of the skin when it generates heat. One breath effect similar to the trait is performed.

Next, a case will be described in which the movable contact 13-1 of the switch 13 is kept switched to the fixed contact 13-3 side.

Delay circuit 3 connected to output terminal 27 of electronic timer 21
The capacitor 34 of the delay circuit 35 is charged by the rectangular pulse of the output of the electronic timer 21, and when the operation of the electronic timer ends and the timer output becomes zero, the charge of the capacitor 34 of the delay circuit 35 is transferred to the resistor 33 and the capacitor 34. It is discharged through a transistor (not shown) in the electronic timer for a time determined by the time constant of .

Therefore, the terminal voltage of capacitor 34 decreases exponentially.

On the other hand, the output of the capacitor 34 is applied to the trigger input terminal 2 of the electronic timer 21 via the fixed contact 13-3 and the movable contact 13-1 of the switch 13, and when the voltage of the capacitor 34 drops to a certain potential, the electronic timer 21 will be triggered again.

As a result, the electronic timer 21 operates again in the same manner as described above, and by the action of the waveform shaping circuit 32 and the transistors 37 and 38, a sawtooth waveform pulse signal is applied to the heating plate 5 of the safety iron 1. Then, the heat generating plate 5 performs a breathing effect again.

In this way, the delay circuit 35 outputs a rectangular pulse to the output terminal 27 of the electronic timer 21 every time
The trigger pulse is repeatedly input to the electronic timer 21 at the delay time interval of the delay circuit 35, so that the heat generating plate 5 repeatedly performs the breath relief action at the delay time interval.

The heat generation level of the heat generating plate 5 of the health iron 1 can be changed at will by appropriately adjusting the resistance value of the variable resistor 29 of the waveform shaping circuit 32, that is, by appropriately adjusting the charging voltage of the capacitor 30. can.

In this way, the strength of the breath-taking effect can be changed at will.

In the above-described configuration, the safety iron 1 simply attaches a resistor 7 in the form of a metal film to the ceramic substrate 6 using a vapor deposition method or the like.
The chip resistor heating plate 5, which can be easily manufactured by providing the electrodes 8, 8, can be manufactured by soldering to the tip of the rod-shaped printed circuit board 3, and the structure is simple and the manufacturing cost is low. There are advantages.

In addition, the above-mentioned health iron 1 has a small heat generating plate 5 connected to the tip of a printed circuit board 3 by soldering with a heat insulating groove 4 in between. Thermal conduction of the heat generated by the resistor 7 to the printed circuit board 3 side,
That is, it is possible to suppress the dissipation of heat, and therefore, the pulsed power applied to the heat generating plate 5 can be efficiently exchanged with heat.
It can perform an ignition action.

Further, even if there is rapid thermal expansion of the ceramic substrate 6 when the heat generating plate 5 generates heat, the groove 4 allows the substrate 6 to
The reaction force received from the printed circuit board 3 can be effectively alleviated, and there is no risk that the heat generating plate 5 will be damaged or detached from the printed circuit board 3, and it can be made to have excellent mechanical strength. .

Furthermore, by efficiently generating heat from the heat generating plate 5, the heat generating plate 5 (ceramic substrate 6) can be heated with characteristics almost similar to the pulse voltage waveform applied to the heat generating plate 5. By simply adjusting the voltage waveform applied from 20 to the conductive metal foils 2, 2 of the printed circuit board 3 so that it approximates the skin temperature characteristic curve due to the hook shown in FIG. 9, an effect almost equivalent to the ignition effect by the hook can be obtained. can be obtained.

The skin temperature characteristic curve in FIG. 9 mentioned above is actually 'W3.
Measurements were obtained by placing 6 mg on the ignition point (Ashisanri) of the victim and lighting the flame.

This temperature characteristic graph shows that the skin temperature characteristics during the breath-related effects of the hatch rise linearly with a relatively gentle slope until 12 seconds after the hatch is ignited (indicated by time 0), and then the slope slows down slightly. It can be seen that the temperature reaches its peak at approximately 15 seconds, and then the temperature rapidly drops exponentially.

Next, based on the above experimental observations, an embodiment of an electric igniter that can obtain an effect similar to the ignition effect of a twine using the above-mentioned safety iron 1 will be described with reference to FIG.

In FIG. 7, 50 is the switch 1 of the above-mentioned safety iron 1.
3. For example, by operating an automatic return type pushbutton switch, the heating plate 5 is given an almost sawtooth cutting waveform that falls at an appropriate slope for a certain period of time from the peak that approximates the temperature characteristic curve in FIG. 9. This is an electric circuit that applies a pulse voltage of .

In this electric circuit 50, both 51 and 52 are electronic timers, which are integrated circuit modules similar to the electronic timer 21 described above.

Input terminal for triggering the above electronic timer 51 (indicated by ■)
A battery 58 outputs a constant DC voltage, for example 12V, through a first trigger pulse generation circuit 56 which is controlled by resistors 53 and 54, a capacitor 55, and the automatic reset type push button switch 13, and a power switch 57. is connected to.

This electronic timer 51 includes a first time constant circuit 62 consisting of a resistor 59, a variable resistor 60, and a capacitor 61.
is connected to the output terminal 63 of this electronic timer 51,
A relay 65 having a normally open contact 65a and a normally closed contact 65b, which will be described later, is connected via the resistor 64.

On the other hand, a trigger input terminal (indicated by ■) of the electronic timer 52 is connected to the battery 58 via a second trigger pulse generation circuit 69 consisting of resistors 66 and 67 and a capacitor 68, and the power switch 57. and is connected to the output terminal 63 of the electronic timer 51 via the capacitor 68 of the second trigger pulse generation circuit 69.

A second time constant circuit 72 formed from a resistor 70 and a capacitor 71 is connected to this electronic timer 52, and an output terminal 73 of this electronic timer 52 is connected via a resistor 74 to a normally open contact 75, which will be described later. a and normally closed contact 75 b
A relay 75 is connected.

Reference numeral 80 denotes a transistor for controlling the heat generating plate 5. The collector of this transistor 80 is connected to the output side contact of the power switch 57, and the emitter is connected to the electrode 8 of the heat generating plate 5. Another electrode 8 is connected to the negative terminal of the battery 58.

Reference numeral 81 denotes a driving transistor for the control transistor 80. The emitter of this transistor 81 is connected to the base of the control transistor 80, the collector is connected to the output side contact of the power switch 57, and the base is connected to the heat generating plate 5. The output terminal 83 of the power supply control circuit 82 is connected to the output terminal 83 of the power supply control circuit 82 .

In the power supply control circuit 82, one contact of the normally open contact 65a of the relay 65 is connected to the output side contact of the power switch 57 via a field effect transistor 84 and a resistor 85. The other contact point of 65 a is connected to the output terminal 83 of this power supply control circuit 82 .

This output terminal 83 is connected to the negative terminal of the battery 58 via a capacitor 86.

Further, between this output terminal 83 and the negative terminal of the battery 58, a normally closed contact 65b of the relay 65 and a low resistance 8
7 and the series connection body of the normally closed contact 75b of the relay 75, and the high resistance 88 and the normally open contact 75a of the relay 75.
are connected in parallel.

Between the output side contact of the power switch 57 and the negative terminal of the battery 58, there is a light emitting diode 9 that displays the operating state of the electric circuit 50, as in the electronic device 20 described above.
1 and a resistor 92 are connected.

Further, the emitter of the transistor 80 and the battery 58
A light emitting diode 93 and a resistor 9 are connected between the negative terminal of
4 is connected.

In the electric circuit 50 configured as described above, first, when the power switch 57 is closed and the light emitting diode 91 is turned on, when the push button switch 13 is pressed, the electronic timer 51 is activated.
It operates upon receiving a trigger pulse from the first trigger pulse generation circuit 56, and the first
A pulse signal having a pulse width corresponding to the time constant of the time constant circuit 62 is output.

Therefore, the relay 65 is excited by receiving the pulse signal through the resistor 64, and closes the contact 65a of the relay 65 of the power supply control circuit 82 during the time T1 corresponding to the time constant of the first time constant circuit 62. At the same time, contact 65b is opened.

Let this time point be t'o.

As a result, charging of the capacitor 86 is started by the output current of the constant current circuit from the field effect transistor 84 and the resistor 85 of the power supply control circuit 82 .

A voltage corresponding to the charging voltage of the capacitor 86, that is, a voltage that increases linearly, is applied to the base of the driving transistor 81, and is amplified by the transistors 81 and 80, and the heating plate 5 is supplied with power and heated.
The light emitting diode 93 lights up.

As the capacitor 86 is charged from time t'o, a voltage that increases almost linearly from zero voltage is applied to the heating plate 5, as shown by the solid line in FIG. 8a.

After that, a time T1 corresponding to the time constant of the first time constant circuit 62
At the elapsed point t1, the output terminal 63 of the electronic timer 51
becomes zero potential, that is, the relay 65 becomes de-energized.

Therefore, the contact 65a of this relay 65 opens and the contact 65b closes.

Also, at this time, the second trigger pulse generation circuit 69 is activated.

Therefore, the electronic timer 52 operates upon receiving the trigger pulse from the second trigger pulse generation circuit 69, and the electronic timer 51
Similarly, the relay 75 is excited during the time T2 corresponding to the time constant of the second time constant circuit 72.

Therefore, the time t when time T2 has elapsed from the above-mentioned time t'1
'2, the contact 75b of the relay 75 opens, and
Contact 75a closes.

As a result, the capacitor 86 charged up to the time t'1 is charged via the closed contact 75a and the high resistance 88 to a large voltage determined by the capacitor 86 and the high resistance 88. Discharge according to the time constant.

That is, a voltage that gradually decreases with a gentle slope is applied to the base of the driving transistor 81, and therefore, the voltage applied from the transistor 80 to the heat generating plate 5 is as shown in FIG. 8a in accordance with the discharge voltage of the capacitor 86. It gradually decreases almost linearly from time t'1 to time t'2 at a gentle slope.

Thereafter, the relay 75 becomes de-energized at time t'2,
The contact 75 b closes again, and the contact 75
a opens.

As a result, the charge in the capacitor 86 is almost instantaneously discharged through the closed contact 65b, the low resistance 87, and the closed contact 75b, so that the transistors 81 and 80 are turned off at time t2. Become.

Therefore, the heat generating action of the resistor 7 of the heat generating plate 5 is stopped.
Moreover, the light emitting diode 93 is also turned off to indicate that one breath relief action has been performed.

In addition, if the resistance value of the variable resistor 60 of the first time constant circuit 62 is changed as appropriate, that is, the operating time of the relay 65 is changed, the heating plate 5 at time 1/ is proportional to the magnitude of this resistance value. The peak value of the applied voltage can be changed.

In the electric circuit 50, the waveforms of various voltages applied to the heat generating plate 5 when the resistance value of the variable resistor 60 is varied are shown as waveform groups a to f indicated by dotted lines in FIG. 8a.

The pulse voltage groups of various peak values shown in FIG. 8a above are
The temperature graph shown in FIG. 8 was obtained as a result of measuring the temperature of the skin when each voltage was applied to the heating plate 5 of the ignition iron 1 and ignited.

In particular, the temperature characteristic curve shown by the solid line in FIG. 8A corresponding to the pulse voltage waveform shown by the solid line in FIG.
．． It can be seen that the characteristic curve almost coincides with the characteristic curve shown in FIG. 9 when 6 mg is ignited.

As described above, according to the electric type breather composed of the above-mentioned ignition iron 1 and the electric circuit 50, it goes without saying that it is possible to greatly simplify the breath relief work compared to the work caused by using a hatchet. It has the excellent advantage of being able to provide the same medical effect as the respiratory effects caused by .

As is clear from the above explanation, according to this invention, an appropriately heat-insulating space such as a groove is provided on the tip surface of a rod-shaped printed circuit board, and the tip of the printed circuit board is provided with a space through the space. By applying a pulse voltage with an approximately sawtooth waveform corresponding to the actually measured temperature characteristic curve of the breath during the fire caused by the fire, the ignition of the fire caused by the ignition of the fire was applied to a heat prevention iron constructed by attaching a small heat generating plate. The skin can be heated almost in accordance with the temperature characteristics, and high therapeutic effects similar to those for respiratory problems can be obtained.

In addition, the above-mentioned safety iron simply solders a small heat-generating plate formed by providing a resistor and an electrode on an electrically insulating board through the above-mentioned heat-insulating space to the tip of a rod-shaped printed circuit board. It has the advantage of having a simple structure and low manufacturing cost.

Furthermore, this invention suppresses the dissipation of the heat generation amount of the heat generating plate by interposing the space, improves the heat generation efficiency of the heat generating plate, and controls the waveform of the pulse voltage applied to the heat generating plate. Not only can you obtain the temperature characteristics of the heat generating plate as desired, but it is also highly durable, with no risk of accidents such as damage to the heat generating plate or separation of the heat generating plate from the printed circuit board of the body of the iron. It has the advantage of being extremely robust.

[Brief explanation of drawings]

Figure 1 is a perspective view illustrating the structure of the main parts of an electric breathing device according to an embodiment of this invention, Figure 2 is an enlarged perspective view of the main parts of the iron for breathing in Figure 1, and Figure 3 is a perspective view of the main parts of the electric breathing iron of this invention. FIG. 4 is an enlarged perspective view of the heating plate of the respiratory iron shown in FIG. 1; FIG. 5 is an electric circuit diagram of the electronic device of the respiratory iron shown in FIG. 1; Figure 6 shows the voltage pulse waveform applied to the heating plate in the circuit of Figure 5, Figure 7 is an electric circuit diagram of another embodiment of this invention, Figures 8a and 8 are the circuit diagram of Figure 7. 9 is a measurement graph of the operating characteristics of the device, showing the voltage pulse waveform applied to the heat generating plate and the temperature characteristics of the skin during the action of breathing pain, respectively. Figure 9 is a graph of the temperature characteristics of the skin measured during the action of breathing pain. . 1... Trowel for safety, 2... Conductive metal foil, 3... Printed circuit board, 4... Groove for heat insulation, 5... ... Heat generating plate, 6 ... Ceramic substrate, 7 ... Resistor, 8 ... Electrode, 9 ... Solder, 13 ... switch, 2
0...Electronic device, 21...Electronic timer, 26...Time constant circuit, 32...Waveform shaping circuit, 35...Delay Circuit, 50...
・Electrical circuit of health equipment, 51.52...Electronic timer, 56...First trigger pulse generation circuit, 62
...First time constant circuit, 69...Second trigger pulse generation circuit, 72...Second time constant circuit, 82...Power supply control circuit.

Claims (1)

[Scope of utility model registration request] A part of the insulating plate at the tip of one of the rod-shaped printed circuit boards with conductors formed on both sides of the insulating plate is cut out to make two conductive strips protrude, and a groove is formed in this notch, while
Two electrodes are provided at a predetermined interval on one surface of a plate-shaped heating resistor that is wider than the spacing between the two conductors, and
The protruding ends of both conductors of the printed circuit board are connected and fixed to the two electrodes, and the groove is positioned on one side of the heating resistor to form a safety iron. An electric breathing device characterized in that an output terminal of an electronic device that generates a waveform signal is connected to a conductor of the printed circuit board.