Signal pin of eddy current induction coil of common double-sided PCB (Printed Circuit Board)
By designing three sets of pins perpendicular to the eddy current induction coil on the PCB board, the inductance interference problem when the inductance coil signal is drawn is solved, ensuring the accuracy of the sine wave signal and being 120° to each other, and the accurate sampling and calculation of the signal is achieved.
Patent Information
- Application Number
- CN202422107147.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In the prior art, PCB eddy current induction coil signals are susceptible to the electric field of the inductor coil when they are drawn out, resulting in distortion of the waveform of the sine wave signal. The three groups of sine wave signals cannot reach 120° each other, affecting sampling accuracy and software calculations.
An ordinary double-sided PCB board eddy current induction coil signal pin is designed, and three sets of pins perpendicular to the plane of the eddy current induction coil are used. The positive and negative poles are connected to different PCB boards respectively to ensure that the vertical height of the pin is greater than 2.5mm, avoid inductive interference, and ensure that the three sets of sine wave signals are 120° each other.
It effectively prevents the waveform distortion of the inductor coil signal, ensures accurate sampling of the sine wave signal, and supports the accuracy of subsequent software calculations.
Smart Images
Figure CN223274285U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCB eddy current induction, and more specifically, to a signal pin of an eddy current induction coil of a common double-sided PCB. Background Art
[0002] At present, the application of PCB eddy current induction in China is only in theoretical research and has not been transformed into actual product application in enterprises. The main reason is that when the PCB eddy current coil signal is led out, the electric field of the inductor coil is interfered by the inductance of the lead-out circuit, resulting in the distortion of the sine wave signal waveform of the eddy current coil and the sine wave signals of the three groups of inductor coils cannot form a standard 120° angle with each other. As a result, the standard calculation formula principle cannot be followed when the sine wave sampling calculation is used in the later stage, resulting in inaccurate sine wave sampling data and ineffective application in products. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, the utility model provides a common double-sided PCB board eddy current induction coil signal pin, which ensures that the two eddy current induction sinusoidal wave signals of the double-sided PCB board are not interfered with by the inductance of other circuits. It solves the problem that the electric field of the inductor coil is interfered with by the inductance of the lead-out circuit, the sine wave signal waveform of the eddy current coil is distorted, and the accuracy of the subsequent electric sine wave sampling is affected. At the same time, the three groups of sine wave signals cannot be 120 degrees to each other, which makes software calculation and processing difficult to implement.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an ordinary double-sided PCB board eddy current induction coil signal pin, comprising a signal target wheel, a double-sided PCB board 1 is mounted on the upper surface of the signal target wheel, an eddy current induction coil is mounted on the upper surface of the double-sided PCB board 1, a double-sided PCB board 2 is mounted on the eddy current induction coil, and a pin is mounted on the lower surface of the double-sided PCB board 2.
[0005] As a preferred technical solution for the signal pins of the eddy current induction coil of a common double-sided PCB board of the present invention, the pins are provided in three groups, and each group has two pins.
[0006] As a preferred technical solution for the signal pins of the eddy current induction coil on a common double-sided PCB board of the present invention, the three groups of pins are perpendicular to the plane of the eddy current induction coil.
[0007] As the preferred technical solution for the signal pins of the eddy current induction coil of the ordinary double-sided PCB board of the utility model, the vertical height of the three groups of pins is greater than .mm.
[0008] As a preferred technical solution for the signal pins of the eddy current induction coil of a common double-sided PCB board of the present invention, the double-sided PCB board 1 and the double-sided PCB board 2 are electrically connected via pins.
[0009] As a preferred technical solution for the signal pin of the eddy current induction coil of the ordinary double-sided PCB board of the present invention, the positive pole of the pin is electrically connected to the double-sided PCB board 1, and the negative pole of the pin is electrically connected to the double-sided PCB board 2.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0011] The utility model adopts a double-sided PCB board to design an eddy current induction coil, and solves the design of the eddy current induction coil signal pin, thereby ensuring that the eddy current induced sine wave signal of the double-sided PCB board is not interfered with by the inductance of other circuits, and solves the problem that the electric field of the inductor coil is interfered with by the inductance of the lead-out circuit, the sine wave signal waveform of the eddy current coil is distorted, and the accuracy of the subsequent electric sine wave sampling is affected; at the same time, the three groups of sine wave signals cannot be 120 degrees to each other, making software calculation and processing difficult to implement. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional diagram of the utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the utility model;
[0014] Figure 3 This is a cross-sectional view of the utility model.
[0015] In the figure: 1. Signal target wheel; 2. Double-sided PCB board 1; 3. Eddy current induction coil; 4. Double-sided PCB board 2; 5. Pins. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0017] like Figures 1 to 3 As shown, the utility model provides a common double-sided PCB board eddy current induction coil signal pin, including a signal target wheel 1, a double-sided PCB board 2 is mounted on the upper surface of the signal target wheel 1, an eddy current induction coil 3 is mounted on the upper surface of the double-sided PCB board 2, a double-sided PCB board 4 is mounted on the eddy current induction coil 3, and a pin 5 is mounted on the lower surface of the double-sided PCB board 4;
[0018] After the design of the eddy current induction coil 3 on the double-sided PCB board 2 is completed, the lead-out method of the positive and negative pins 5 of the three sets of inductor coils is implemented as follows: the positive and negative pins 5 of the three sets of inductor coils are perpendicular to the plane of the eddy current induction coil 3 on the double-sided PCB board 2, and the vertical distance is greater than 2.5 mm. Afterwards, the circuits of the positive and negative pins 5 of the three sets of inductor coils can be arranged according to the normal design of general circuits, without affecting the fluctuation and deformation of the sinusoidal wave signal of the eddy current induction coil 3 and the sine waves of the three sets of inductor coils are 120 degrees to each other, thereby effectively solving the problem of sine wave waveform distortion of the inductor eddy current coil on ordinary double-sided PCB boards and the problem that the three sets of waveforms cannot be 120 degrees to each other.
[0019] Among them, there are three groups of pins 5, each group has two pins 5; the three groups of pins 5 are perpendicular to the plane of the eddy current induction coil 3; the vertical height of the three groups of pins 5 is greater than 2.5 mm; the double-sided PCB board 1 2 and the double-sided PCB board 2 4 are electrically connected through the pins 5; the positive pole of the pin 5 is electrically connected to the double-sided PCB board 1 2, and the negative pole of the pin 5 is electrically connected to the double-sided PCB board 2 4.
[0020] The working principle and use process of this utility model:
[0021] After the design of the eddy current induction coil 3 on the double-sided PCB board 2 is completed, the lead-out method of the positive and negative pins 5 of the three sets of inductor coils is implemented as follows: the positive and negative pins 5 of the three sets of inductor coils are perpendicular to the plane of the eddy current induction coil 3 on the double-sided PCB board 2, and the vertical distance is greater than 2.5 mm. Afterwards, the circuits of the positive and negative pins 5 of the three sets of inductor coils can be arranged according to the normal design of general circuits, without affecting the fluctuation and deformation of the sinusoidal wave signal of the eddy current induction coil 3 and the sine waves of the three sets of inductor coils are 120 degrees to each other, thereby effectively solving the problem of sine wave waveform distortion of the inductor eddy current coil on ordinary double-sided PCB boards and the problem that the three sets of waveforms cannot be 120 degrees to each other.
[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A signal pin of an eddy current induction coil on a common double-sided PCB, comprising a signal target wheel (1), characterized in that: A double-sided PCB board (2) is mounted on the upper surface of the signal target wheel (1), an eddy current induction coil (3) is mounted on the upper surface of the double-sided PCB board (2), a double-sided PCB board (4) is mounted on the eddy current induction coil (3), and a pin (5) is mounted on the lower surface of the double-sided PCB board (4).
2. The common double-sided PCB board eddy current induction coil signal pin according to claim 1, characterized in that: The pins (5) are provided in three groups, and each group has two pins (5).
3. The common double-sided PCB board eddy current induction coil signal pin according to claim 2, characterized in that: The three groups of pins (5) are perpendicular to the plane of the eddy current induction coil (3).
4. The common double-sided PCB board eddy current induction coil signal pin according to claim 3, characterized in that: The vertical heights of the three groups of pins (5) are greater than 2.5 mm.
5. The common double-sided PCB board eddy current induction coil signal pin according to claim 1, characterized in that: The double-sided PCB board 1 (2) and the double-sided PCB board 2 (4) are electrically connected via pins (5).
6. The common double-sided PCB board eddy current induction coil signal pin according to claim 5, characterized in that: The positive pole of the pin (5) is electrically connected to the double-sided PCB board (2), and the negative pole of the pin (5) is electrically connected to the double-sided PCB board (4).