Electromagnetic wave generating device

Abstract

The utility model discloses an electromagnetic wave generating device, which relates to the field of electromagnetic wave application and comprises a magnetic field generating circuit, a signal output end of the magnetic field generating circuit is connected with a printed coil, and the printed coil is printed and integrated on an insulating substrate, so that the printed coil and the insulating substrate form an integrated electromagnetic wave generating terminal. According to the utility model, the integrated electromagnetic wave generating terminal formed by the printed coil and the insulating substrate is adopted, so that the layout requirement of the electromagnetic wave generating terminal in a light and thin product is facilitated, the cost generated by the electromagnetic wave generating terminal is greatly reduced, and some existing problems of related products at present are solved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic wave applications, and more specifically, to an electromagnetic wave generating device. Background Technology

[0002] While electromagnetic waves can harm human health, certain frequencies can promote it. Furthermore, there are now specialized instruments that utilize electromagnetic waves as therapeutic methods. For example, people with burns or sprains can undergo physical therapy using electromagnetic waves; there are also applications in beauty and weight loss using electromagnetic waves; and electromagnetic wave therapy is used in mattresses and pillows.

[0003] However, most electromagnetic wave devices are currently large and expensive, making long-term use unsustainable and thus weakening their therapeutic effects. While mattresses and pillows with electromagnetic wave therapy functions integrate the electromagnetic wave generator into the product, current products primarily use electromagnetic wave generators or electromagnetic wave radiation plates. Electromagnetic wave generators are complex in structure and often include magnets, as described in publication number CN207506856U. Their size makes them unsuitable for thin and lightweight products; moreover, their unit price is high, requiring multiple generators for large-area applications, resulting in a very expensive final product. While electromagnetic wave radiation plates can be used in relatively thin and flat products, as described in publication number CN204617742U, their surface requires a rare-earth coating to generate electromagnetic waves, which also increases costs, making the final product expensive and hindering its widespread adoption. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electromagnetic wave generating device that addresses the shortcomings of the existing technology. This device not only meets the layout requirements of thin and light products, but also significantly reduces the cost of electromagnetic wave generating terminals.

[0005] The electromagnetic wave generating device of this utility model includes a magnetic field generating circuit. The signal output terminal of the magnetic field generating circuit is connected to a printed coil. The printed coil is printed and integrated on an insulating substrate so that the printed coil and the insulating substrate form an integrated electromagnetic wave generating terminal.

[0006] Preferably, the insulating substrate is a printed circuit board.

[0007] Preferably, the printed circuit board is a rigid PCB or a flexible circuit board.

[0008] Preferably, the surface of the printed coil is provided with an insulating protective coating.

[0009] Preferably, the insulating substrate is circular, elliptical, square, rectangular, or polygonal in shape.

[0010] Preferably, the printed coil has a spiral structure.

[0011] Preferably, the printed coil is disposed on one side of the insulating substrate, and two connection solder points are provided at the edge of the other side of the insulating substrate. One of the connection solder points is connected to one end of the printed coil located at the edge through a via, and the other connection solder point is connected to one end of the printed coil located at the center through a via and a printed wire.

[0012] Preferably, the magnetic field generating circuit includes a microcontroller, a 27th resistor, a 12th transistor, and a 5th inductor; the control terminal of the microcontroller is connected to the base of the 12th transistor through the 27th resistor, the emitter of the 12th transistor is grounded, the collector of the 12th transistor is connected to one end of a printed coil through the 5th inductor, and the other end of the printed coil is connected to a 5V voltage source.

[0013] Preferably, the fifth inductor is connected to one end of the printed coil via a current-limiting resistor.

[0014] Preferably, the 5V voltage source is supplied through a voltage regulator circuit consisting of a voltage regulator chip, two 104pF capacitors and two 470uF capacitors.

[0015] Beneficial effects

[0016] The advantages of this utility model are:

[0017] 1. The integrated electromagnetic wave generating terminal structure formed by printed coils and insulating substrates not only facilitates its layout in thin and light products, but also significantly reduces the cost of electromagnetic wave generating terminals, solving the existing problems of related products.

[0018] 2. The insulating substrate uses printed circuit boards, which have mature technology and are easy to manufacture; moreover, printed circuit boards are available in both rigid and flexible versions, and both meet the requirements for printed coil manufacturing. Different types of printed circuit boards can be selected for different products, which can better meet the diverse design needs of products. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the circular structure (rear view) of the electromagnetic wave generating terminal of the electromagnetic wave generating device of this utility model;

[0020] Figure 2 This is a schematic diagram of the elliptical structure (hidden on the back) of the electromagnetic wave generating terminal of the electromagnetic wave generating device of this utility model;

[0021] Figure 3 This is a schematic diagram of the square structure (hidden on the back) of the electromagnetic wave generating terminal of the electromagnetic wave generating device of this utility model;

[0022] Figure 4 This is a schematic diagram of the rectangular structure (hidden on the back) of the electromagnetic wave generating terminal of the electromagnetic wave generating device of this utility model;

[0023] Figure 5 This is a schematic diagram of the polygonal structure (hidden on the back) of the electromagnetic wave generating terminal of the electromagnetic wave generating device of this utility model;

[0024] Figure 6 This is a schematic diagram of the magnetic field generating circuit of this utility model;

[0025] Figure 7 This is a schematic diagram of the voltage regulator circuit of this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0027] See Figures 1-7 This utility model discloses an electromagnetic wave generating device, including a magnetic field generating circuit. The signal output terminal of the magnetic field generating circuit is connected to a printed coil 1, which is printed and integrated onto an insulating substrate 2, forming an integrated electromagnetic wave generating terminal. This embodiment integrates the printed coil 1 onto the insulating substrate 2, meeting the requirements of a thin and lightweight electromagnetic wave generating terminal. Furthermore, the insulating substrate 2 can be made of various materials, such as plastic, bakelite, and fiberglass, avoiding the use of expensive materials. Therefore, the integrated electromagnetic wave generating terminal formed by the printed coil 1 and the insulating substrate 2 not only facilitates its layout in thin and light products but also significantly reduces the cost of the electromagnetic wave generating terminal, solving some existing problems in related products.

[0028] Furthermore, the insulating substrate 2 in this embodiment is a printed circuit board, which has a mature process and is easy to manufacture.

[0029] Furthermore, the printed circuit board can be a rigid PCB or a flexible circuit board. That is, for different products, a rigid PCB or a flexible circuit board can be selected as the carrier for the printed coil 1 to meet specific needs. In addition, the printed coil 1 can be applied to single-layer PCBs, double-layer PCBs, or multi-layer PCBs.

[0030] In this embodiment, the surface of the printed coil 1 is provided with an insulating protective coating to prevent the copper foil, which serves as the coil, from being directly exposed, thus protecting the coil. Figure 1-5 As shown, the insulating substrate 2 can be circular, elliptical, square, rectangular, polygonal, or other irregular shapes to suit different product requirements. In the specific wiring, the printed coil 1 has a spiral structure and is located on one side of the insulating substrate 2. Two connection solder points 3 are located on the edge of the other side of the insulating substrate 2. One connection solder point 3 is connected to one end of the printed coil 1 at the edge via a via, and the other connection solder point 3 is connected to one end of the printed coil 1 at the center via a via and a printed conductor. The printed conductor and the connection solder point 3 are arranged on the same side. It should be noted that if the printed coil 1 is used on a single-layer PCB, the two connection solder points 3 can only be arranged on the same side as the printed coil 1, and the two connection solder points 3 can be directly connected to the beginning and end of the printed coil 1 respectively, without the need for printed conductors.

[0031] like Figure 6 As shown, the magnetic field generating circuit includes a microcontroller U1, a 27th resistor R27, a 12th transistor Q12, and a 5th inductor L5. The control terminal of the microcontroller U1 is connected to the base of the 12th transistor Q12 through the 27th resistor R27. The emitter of the 12th transistor Q12 is grounded, and the collector of the 12th transistor Q12 is connected to one end of the printed coil 1 through the 5th inductor L5. The other end of the printed coil 1 is connected to a 5V voltage source. Furthermore, a current-limiting resistor R14 is provided between the 5th inductor L5 and the printed coil 1. Figure 7 As shown, the 5V voltage source in this embodiment is supplied by a voltage regulator circuit consisting of a voltage regulator chip, two 104pF capacitors and two 470uF capacitors.

[0032] When the circuit is working, a 5V voltage source supplies power to one end of the printed coil 1. When current flows through the coil, the coil generates a magnetic field. The microcontroller U1 controls the twelfth transistor Q12 to output a frequency of 1Hz to 100Hz. That is, the change in current causes a change in the magnetic field strength. This change in magnetic field can excite the generation of electromagnetic waves, thus causing the printed coil 1 to generate electromagnetic waves of the corresponding frequency. The specific design of the printed coil 1 can be determined according to the following guidelines: First, determine the resistance value of the current-limiting resistor R14 and the inductance value of the fifth inductor L5, such as... Figure 6 The values ​​shown are 100R and 700UH. Next, determine the required electromagnetic wave frequency; then determine the line width of printed coil 1, and adjust the number of turns accordingly. During this process, the maximum number of turns for printed coil 1 cannot exceed 8mm, otherwise electromagnetic waves will not be generated.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. An electromagnetic wave generating device, characterized in that, It includes a magnetic field generating circuit, the signal output terminal of which is connected to a printed coil (1), the printed coil (1) is printed and integrated on an insulating substrate (2) so that the printed coil (1) and the insulating substrate (2) form an integrated electromagnetic wave generating terminal.

2. The electromagnetic wave generating device according to claim 1, characterized in that, The insulating substrate (2) is a printed circuit board.

3. The electromagnetic wave generating device according to claim 2, characterized in that, The printed circuit board is a rigid PCB or a flexible circuit board.

4. The electromagnetic wave generating device according to claim 1, characterized in that, The surface of the printed coil (1) is provided with an insulating protective coating.

5. An electromagnetic wave generating device according to any one of claims 1-4, characterized in that, The insulating substrate (2) is round, elliptical, square, rectangular or polygonal in shape.

6. An electromagnetic wave generating device according to any one of claims 1-5, characterized in that, The printed coil (1) has a spiral structure.

7. An electromagnetic wave generating device according to claim 6, characterized in that, The printed coil (1) is disposed on one side of the insulating substrate (2), and two connecting solder points (3) are provided at the edge of the other side of the insulating substrate (2). One of the connecting solder points (3) is connected to one end of the printed coil (1) located at the edge through a via, and the other connecting solder point (3) is connected to one end of the printed coil (1) located at the center through a via and a printed wire.

8. An electromagnetic wave generating device according to any one of claims 1-4, characterized in that, The magnetic field generating circuit includes a microcontroller (U1), a 27th resistor (R27), a 12th transistor (Q12), and a 5th inductor (L5). The control terminal of the microcontroller (U1) is connected to the base of the 12th transistor (Q12) through the 27th resistor (R27). The emitter of the 12th transistor (Q12) is grounded. The collector of the 12th transistor (Q12) is connected to one end of the printed coil (1) through the 5th inductor (L5). The other end of the printed coil (1) is connected to a 5V voltage source.

9. An electromagnetic wave generating device according to claim 8, characterized in that, The fifth inductor (L5) is connected to one end of the printed coil (1) through a current-limiting resistor (R14).

10. An electromagnetic wave generating device according to claim 9, characterized in that, The 5V voltage source is supplied through a voltage regulator circuit consisting of a voltage regulator chip, two 104pF capacitors, and two 470uF capacitors.

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