Manufacturing circuit of needleless electronic acupuncture device

The production of a needle-free electronic acupuncture device. This article introduces a needle-free electronic acupuncture device. It does not use needles and does not feel pain, but it can enjoy the benefits of acupuncture. 1. Circuit Description 　　Figure 1 is the circuit schematic diagram of the electronic acupuncture device. The power supply of the circuit is 9V battery B1. Switch S1 is used to turn on and off the electronic acupuncture device. It is structurally linked to the potentiometer R10. Resistor R1 is used to limit the power consumption of the circuit. R2-R4, C1 and 556 form a dual timer. When S2 is open, the charging and discharging time of C1 is about 0.5 seconds. When S2 is closed, the charging and discharging time of C1 is about 0.25 seconds. Pin ⑤ of ICl is the output of the first timer, which is sent to pin ⑧ of ICl via R5 and C3. This part forms the second timing circuit with R7, R8 and C4. The inductor pulse time is added to the base of transistor Q1 through current limiting resistor R8. When Ql is turned on, the primary of audio transformer T1 is grounded for a short time, and no current flows through T1. Capacitor C5 is charged through the primary of T1 when Q1 is turned off, and discharged through Q1 when Q1 is turned on, so that C5 is charged and discharged as T1 is powered on and cut off the current. The charging cycle slows down the rise and fall times of the pulses, and at the same time increases the duration of the pulse sent from T1, making the output waveform closer to a half sine wave. C6, D1 and R9 form the output waveform shaping circuit. Potentiometer R10 is used to adjust the pulse amplitude. The maximum pulse amplitude can reach about 200V, the pulse duration is 2ms, and the total current consumption does not exceed 10mA. 2. Production method: 　　The printed circuit board diagram is shown in Figure 2, and the component assembly diagram is shown in Figure 3. First install the integrated circuit socket, resistor and capacitor of ICl. When soldering the electrolytic capacitor C1, pay attention to the correct polarity, and then solder the diode. Also pay attention to polarity. When the printed board is connected to off-board components such as the potentiometer with switch (R10/S1), ping-pong switch S2 and transformer T1, a 4-inch long 22-gauge insulated wire can be used to connect. After welding the 9V Bl battery wiring, you can insert Q1 and ICl for welding. The welding direction of these two devices should be carefully checked. Then install the external components and place the printed board in the outer box. The outer box size is at least 4X2X1 inches. At one end of the outer box, use an electric drill to drill two holes to install R10/S1 and S2 respectively; install two sockets J1 and J2 with nuts on the side of the outer box. The two square pads for welding J1 and J2 on the printed board can be installed according to the Connect with wires at your convenience or solder J1 and J2 directly on the square pads. After J1 and J2 are welded, the printed board can be fixed in the outer box with screws and separation posts, and then all off-board components can be connected to the corresponding positions of the printed board with wires. 3. Adjustment and Usage Instructions Connect the 9V battery, turn on the power with R10/S1, then slowly rotate R10 to the middle position, put your arms on J1 and J2, then you can feel the speed of the pulse. It increases or decreases with the switching of S2. Then slowly turn R10 clockwise or counterclockwise to reduce or increase the "acupuncture" pulse intensity. 　　Figure 4 is a diagram of acupuncture points that can be used to treat various diseases with traditional acupuncture. If you suffer from a certain disease, you can select the appropriate acupoint according to Figure 4. You can place the socket J2 directly on the acupoint, and the other socket can be placed Any part with thin skin (as long as a pulse circuit is formed). In order to obtain the best therapeutic effect, the electronic acupuncture device can be used up to three times a day, each time for between 5 minutes and 15 minutes. 4. Use electrode pads. Many electronic acupuncture doctors now use electrode pads to attach to the skin at appropriate acupoints to treat diseases, so that a large area of ​​the entire nerve can be stimulated with acupuncture. Therefore, as long as this circuit is slightly modified, it can be made universal. The modification method is very simple. In fact, the two output terminals J2 and J1 of the electronic acupuncture device are extended to the electrode plate with wires, so that the electrode pad has only enough length to perform acupuncture stimulation along the beginning and end of the path. One end of the wire Use alligator clips or banana plugs to connect to J1 and J2. The other end can be soldered directly to the electrode hot plate. The electrode pad can be made of a copper sheet with good conductivity. A 2-inch square is enough. In order to make better contact with the skin, the surface of the electrode can be coated with a layer of conductive liquid to make the treatment effect better. When performing multiple treatments and saving conductive fluid, the electrodes can be temporarily placed in a plastic bag to prevent the conductive fluid from drying out quickly. Please refer to Figure 5 for instructions during use. Figure 5 lists the locations and directions of various nerves to facilitate your placement of the two electrodes for electronic acupuncture. The spinal system is the origin base of all nerves. It has a total of 31 nerves, which can be divided into 4 major groups. Among them, the cervical nerve group and sacral nerve group extend to the arms and legs, while the thoracic nerve group and lumbar nerve group are shown in Figure 5 Shown distributed to all parts of the body. The beginning and end of the nerve group can be viewed as lines marked C, S, T or L in Figure 5. During treatment, you can place two electrodes at the beginning and end of the nerve, or you can place them on only one section of the nerve, including the part where you feel pain. You should do several experiments to find the best pain location. . 　　1. Bronchitis; 12. Dizziness; 23. Neck spasm 34. Constipation; 45. Shoulder pain 2. High blood pressure; 13. Neck neuralgia; 24. Dizziness; 35. Knee joint pain; 46. Elbow joint pain ; 3. Shoulder pain 14. Asthma and cough; 25. General strain; 36. Swelling of thighs;