Circuit for solving antenna interference caused by electromagnetic field generated by motor vibration in flat product

Abstract

The invention discloses a circuit for solving the problem that an antenna is interfered by an electromagnetic field generated by motor vibration in a flat product, and the circuit comprises a main circuit which comprises a power supply main line and a grounding main line; the motor control circuit comprises a first control circuit and a second control circuit, the first control circuit is arranged on the power supply main line, the second control circuit is arranged on the grounding main line, and a corresponding electrostatic impedor is arranged on the motor control circuit; the LC filter circuit is arranged on the power supply main line and the grounding main line, the LC filter circuit is composed of a filter inductor and a filter capacitor, and the LC filter circuit is provided with an opening switch. Interference signals in the circuit are isolated through the LC filter circuit, the problem that an electromagnetic field generated by vibration of the motor is diffused to a radio frequency circuit can be avoided, and therefore the problem that due to vibration work of the motor, the electromagnetic field interferes with an antenna, and the antenna signal is poor is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit design, and more specifically, to a circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product. Background Art

[0002] Tablet products are small, portable personal smart devices that use a touch screen as a basic input device. The biggest features of tablet products, such as tablet computers, are touch screen and handwriting recognition input functions, as well as powerful pen input recognition, voice recognition, gesture recognition capabilities, and mobility.

[0003] In the hardware composition of tablet products, an important device is the motor. The motor of ordinary tablet products is designed to be straight-through. When the motor is not vibrating, it does not interfere with the electromagnetic field. However, when the motor starts to vibrate, it will interfere with the antenna signal, affect the signal stability, and cause the signal to deteriorate. Summary of the invention

[0004] The purpose of the present invention is to provide a circuit to solve the problem of electromagnetic field interference with antenna generated by motor vibration in flat products. By setting up an LC filter circuit to isolate the interference signal in the circuit, the problem of the electromagnetic field generated by motor vibration spreading to the radio frequency circuit can be avoided, thereby solving the problem of electromagnetic field interference with antenna caused by motor vibration, resulting in poor antenna signal.

[0005] The first aspect of the present invention provides a circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a tablet product, comprising: A main circuit, the main circuit comprising a power main line and a ground main line; A motor control circuit, the motor control circuit comprising a first control circuit respectively arranged on the power main line and a second control circuit respectively arranged on the ground main line, wherein the motor control circuit is provided with a corresponding electrostatic resistor; The LC filter circuit is arranged on the power main line and the ground main line. The LC filter circuit is composed of a filter inductor and a filter capacitor, and the LC filter circuit has an opening switch.

[0006] In this solution, one end of the power main line is connected to the power input port, and the other end is connected to the positive pole of the motor access point. One end of the grounding main line is grounded, and the other end is connected to the negative pole of the motor access point.

[0007] In this solution, the first control circuit arranged on the power main line includes a first test point and a first electrostatic resistor, wherein the first interface of the first electrostatic resistor intersects with the first test point on the power main line, and the second interface of the first electrostatic resistor is grounded.

[0008] In this solution, the second control circuit arranged on the ground main line includes a second test point and a second electrostatic resistor, wherein the first interface of the second electrostatic resistor intersects with the second test point on the ground main line, and the second interface of the second electrostatic resistor is grounded.

[0009] In this solution, the specification parameters of the first electrostatic resistor and the second electrostatic resistor are consistent, wherein the specification parameters include voltage parameters and capacitance parameters, the voltage parameters include 5 V, and the capacitance parameters include 10 pF.

[0010] In this solution, the filter inductor of the LC filter circuit is arranged on the power main line, and the filter capacitor of the LC filter circuit is arranged between the power main line and the ground main line.

[0011] In this solution, one end of the filter inductor of the LC filter circuit is connected to the power input port, and the other end is connected to the intersection point where the first interface of the first electrostatic resistor and the first test point intersect.

[0012] In this solution, one end of the filter capacitor of the LC filter circuit is connected to the power input port, and the other end is connected to the grounding terminal on the grounding main line.

[0013] In this solution, the deviation accuracy of the nominal value of the filter inductor is 5%.

[0014] In this solution, the specification parameters of the filter capacitor include capacitance specification and voltage specification, wherein the capacitance specification is 1 uF and the voltage specification is 6.3 V.

[0015] A second aspect of the present invention further provides a circuit control method for solving the problem of electromagnetic field interference antenna generated by motor vibration in a tablet product, which is applied to any of the above-mentioned circuits for solving the problem of electromagnetic field interference antenna generated by motor vibration in a tablet product, wherein the method comprises the following steps: Detect the working status of the motor, where: If the motor is not in operation, the start switch of the preset LC filter circuit is not activated. If the motor is in working state, the start switch corresponding to the LC filter circuit is started to start the LC filter circuit to optimize the circuit.

[0016] The third invention of the present invention provides a circuit control system for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat product, comprising a memory and a processor, wherein the memory comprises a circuit control method program for solving the problem of electromagnetic field interference antenna generated by motor vibration, and the circuit control method program for solving the problem of electromagnetic field interference antenna generated by motor vibration is executed by the processor to implement the following steps: Detect the working status of the motor, where: If the motor is not in operation, the start switch of the preset LC filter circuit is not activated. If the motor is in working state, the start switch corresponding to the LC filter circuit is started to start the LC filter circuit to optimize the circuit.

[0017] A fourth aspect of the present invention provides a computer-readable storage medium, which includes a circuit control method program for a machine that solves the problem of motor vibration in a flat-panel product generating electromagnetic field interference to an antenna. When the circuit control method program for solving the problem of motor vibration in a flat-panel product generating electromagnetic field interference to an antenna is executed by a processor, the steps of a circuit control method for solving the problem of motor vibration in a flat-panel product generating electromagnetic field interference to an antenna as described in any of the above items are implemented.

[0018] The present invention discloses a circuit for solving the problem of electromagnetic field interference with antenna caused by motor vibration in a flat-panel product. By setting up an LC filter circuit to isolate the interference signal in the circuit, the problem of the electromagnetic field generated by the motor vibration spreading to the radio frequency circuit can be avoided, thereby solving the problem of electromagnetic field interference with antenna caused by the vibration of the motor, resulting in poor antenna signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to the present invention is shown; Figure 2 A flow chart of a circuit control method for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to the present invention is shown; Figure 3 A schematic diagram showing a circuit controlled by an open switch for solving the problem of electromagnetic field interference antenna generated by motor vibration in a tablet product of the present invention; Figure 4 A block diagram of a circuit for solving the problem of electromagnetic field interference with antenna generated by motor vibration in a flat-panel product of the present invention is shown. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0022] Figure 1 A schematic diagram of a circuit for solving the problem of electromagnetic field interference with antenna generated by motor vibration in a tablet product of the present application is shown.

[0023] like Figure 1 As shown, the present application discloses a circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a tablet product, comprising: A main circuit, the main circuit comprising a power main line and a ground main line; A motor control circuit, the motor control circuit comprising a first control circuit respectively arranged on the power main line and a second control circuit respectively arranged on the ground main line, wherein the motor control circuit is provided with a corresponding electrostatic resistor; The LC filter circuit is arranged on the power main line and the ground main line, and the LC filter circuit is composed of a filter inductor and a filter capacitor.

[0024] It should be noted that, in this embodiment, one end of the power main line 10 is connected to the power input port, and the other end is connected to the positive pole of the motor access point, and one end of the grounding main line 11 is grounded, and the other end is connected to the negative pole of the motor access point.

[0025] Furthermore, in one embodiment of the invention, the first control circuit 12 arranged on the power main line 10 includes a first test point 13 and a first electrostatic resistor 14, wherein the first interface of the first electrostatic resistor 14 intersects with the first test point 13 on the power main line 10, and the second interface of the first electrostatic resistor 14 is grounded.

[0026] Furthermore, in one embodiment of the invention, the second control circuit 15 arranged on the ground main line 11 includes a second test point 16 and a second electrostatic resistor 17, wherein the first interface of the second electrostatic resistor 17 intersects with the second test point 16 on the ground main line 11, and the second interface of the second electrostatic resistor 17 is grounded.

[0027] It should be noted that the specification parameters of the first electrostatic resistor 14 and the second electrostatic resistor 17 are consistent, wherein the specification parameters include voltage parameters and capacitance parameters, the voltage parameters include "5 V", and the capacitance parameters include "10 pF".

[0028] Furthermore, in one embodiment of the invention, the filter inductor 18 of the LC filter circuit is disposed on the power main line 10 , and the filter capacitor 19 of the LC filter circuit is disposed between the power main line 10 and the ground main line 11 .

[0029] It should be noted that, in this embodiment, one end of the filter inductor 18 of the LC filter circuit is connected to the power input port, and the other end is connected to the intersection of the first interface of the first electrostatic resistor 14 and the first test point 13 .

[0030] Furthermore, in one embodiment of the invention, one end of the filter capacitor 19 of the LC filter circuit is connected to the power input port, and the other end is connected to the ground terminal on the ground main line 11 .

[0031] Specifically, Figure 1 As shown, it can be seen that the filter inductor model in the LC filter circuit used in this embodiment is specifically R219, and the filter capacitor model is C7301. It should be noted that in this embodiment, the deviation accuracy of the nominal value of the filter inductor 18 is "5%", and the specification parameters of the filter capacitor 19 include capacitance specifications and voltage specifications, wherein the capacitance specification is "1 uF" and the voltage specification is "6.3 V".

[0032] Figure 2 A flow chart of a circuit control method for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to the present invention is shown; like Figure 2 As shown, the present application discloses a circuit control method for solving the problem that the motor vibration in a tablet product generates an electromagnetic field interfering with the antenna, which is applied to any of the above-mentioned circuits for solving the problem that the motor vibration in a tablet product generates an electromagnetic field interfering with the antenna, wherein the method comprises the following steps: Step S202, detecting the working state of the motor; Step S204, if the motor is not in operation, the start switch of the preset LC filter circuit is not activated; Step S206: If the motor is in working state, the start switch corresponding to the LC filter circuit is started to start the LC filter circuit to optimize the circuit.

[0033] It should be noted that in this embodiment, when controlling the circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a tablet product, a new start switch 20 is added, wherein, Figure 3 As shown, it is a schematic diagram of a circuit controlled by a start switch for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat product, wherein the opening and closing of the start switch 20 is related to the working state of the motor in the flat product. Specifically, in a specific application, the working state of the motor is detected. If the motor is in a non-working state, the start switch of the preset LC filter circuit is not started, such as Figure 3As shown, the start switch 20 controls the filter inductor 18 to be disconnected from the power main line 10, and controls the filter capacitor 19 to be disconnected from the ground main line 11. When the motor is in the working state, the start switch corresponding to the LC filter circuit is started, as shown in FIG. Figure 3 As shown, the filter inductor 18 is controlled to be connected to the power main line 10 by turning on the switch 20, and the filter capacitor 19 is controlled to be connected to the ground main line 11, so as to start the LC filter circuit to optimize the circuit.

[0034] Figure 4 The block diagram of a circuit control system of the present invention is shown to solve the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product.

[0035] like Figure 4 As shown, the present invention discloses a circuit control system for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product, including a memory and a processor, wherein the memory includes a circuit control method program for solving the problem of electromagnetic field interference antenna generated by motor vibration, and the circuit control method program for solving the problem of electromagnetic field interference antenna generated by motor vibration is executed by the processor to implement the following steps: Detect the working status of the motor, where: If the motor is not in operation, the start switch of the preset LC filter circuit is not activated. If the motor is in working state, the start switch corresponding to the LC filter circuit is started to start the LC filter circuit to optimize the circuit.

[0036] It should be noted that in this embodiment, when controlling the circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a tablet product, a new start switch 20 is added, wherein, Figure 3 As shown, it is a schematic diagram of a circuit controlled by a start switch for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat product, wherein the opening and closing of the start switch 20 is related to the working state of the motor in the flat product. Specifically, in a specific application, the working state of the motor is detected. If the motor is in a non-working state, the start switch of the preset LC filter circuit is not started, such as Figure 3 As shown, the start switch 20 controls the filter inductor 18 to be disconnected from the power main line 10, and controls the filter capacitor 19 to be disconnected from the ground main line 11. When the motor is in the working state, the start switch corresponding to the LC filter circuit is started, as shown in FIG. Figure 3 As shown, the filter inductor 18 is controlled to be connected to the power main line 10 by turning on the switch 20, and the filter capacitor 19 is controlled to be connected to the ground main line 11, so as to start the LC filter circuit to optimize the circuit.

[0037] A fourth aspect of the present invention provides a computer-readable storage medium, which includes a circuit control method program for a machine that solves the problem of motor vibration in a flat-panel product generating electromagnetic field interference to an antenna. When the circuit control method program for solving the problem of motor vibration in a flat-panel product generating electromagnetic field interference to an antenna is executed by a processor, the steps of a circuit control method for solving the problem of motor vibration in a flat-panel product generating electromagnetic field interference to an antenna as described in any of the above items are implemented.

[0038] The present invention discloses a circuit for solving the problem of electromagnetic field interference with antenna caused by motor vibration in a flat-panel product. By setting up an LC filter circuit to isolate the interference signal in the circuit, the problem of the electromagnetic field generated by the motor vibration spreading to the radio frequency circuit can be avoided, thereby solving the problem of electromagnetic field interference with antenna caused by the vibration of the motor, resulting in poor antenna signal.

[0039] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0040] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0041] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0042] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0043] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

Claims

1. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product, characterized in that: include: A main circuit, the main circuit comprising a power main line and a ground main line; A motor control circuit, the motor control circuit comprising a first control circuit respectively arranged on the power main line and a second control circuit respectively arranged on the ground main line, wherein the motor control circuit is provided with a corresponding electrostatic resistor; The LC filter circuit is arranged on the power main line and the ground main line. The LC filter circuit is composed of a filter inductor and a filter capacitor, and the LC filter circuit has an opening switch.

2. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 1, characterized in that: One end of the power main line is connected to the power input port, and the other end is connected to the positive pole of the motor access point. One end of the grounding main line is grounded, and the other end is connected to the negative pole of the motor access point.

3. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 2, characterized in that: The first control circuit arranged on the power main line includes a first test point and a first electrostatic resistor, wherein a first interface of the first electrostatic resistor intersects with the first test point on the power main line, and a second interface of the first electrostatic resistor is grounded.

4. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 3, characterized in that: The second control circuit arranged on the ground main line includes a second test point and a second electrostatic resistor, wherein a first interface of the second electrostatic resistor and the second test point intersect on the ground main line, and a second interface of the second electrostatic resistor is grounded.

5. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 4, characterized in that: The specification parameters of the first electrostatic resistor and the second electrostatic resistor are consistent, wherein the specification parameters include voltage parameters and capacitance parameters, the voltage parameters include 5 V, and the capacitance parameters include 10 pF.

6. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 5, characterized in that: The filter inductor of the LC filter circuit is arranged on the power main line, and the filter capacitor of the LC filter circuit is arranged between the power main line and the ground main line.

7. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 6, characterized in that: One end of the filter inductor of the LC filter circuit is connected to the power input port, and the other end is connected to the intersection point where the first interface of the first electrostatic resistor and the first test point intersect.

8. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 7, characterized in that: One end of the filter capacitor of the LC filter circuit is connected to the power input port, and the other end is connected to the grounding terminal on the grounding main line.

9. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 7, characterized in that: The deviation accuracy of the nominal value of the filter inductor is 5%.

10. A circuit for solving the problem of electromagnetic field interference antenna generated by motor vibration in a flat-panel product according to claim 8, characterized in that: The specification parameters of the filter capacitor include capacitance specification and voltage specification, wherein the capacitance specification is 1uF and the voltage specification is 6.3V.

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