阅读说明：本技术 一种高频电磁感应控制电路 (High-frequency electromagnetic induction control circuit ) 是由 刘团芳 于 2020-11-10 设计创作，主要内容包括：本发明公开了一种高频电磁感应控制电路,包括：充电控制电路、电池控制保护、电池、主控MCU、显示控制、按键控制电路、驱动电路、高频加热电路、感应加热,其中所述充电控制电路是为所述电池提供所需的充电电压和充电电流,所述电池控制保护是检测充电电压和充电电流,所述电池为所述主控MCU供电,所述按键控制电路控制所述主控MCU运行工作,然后所述主控MCU输出电压经过所述驱动电路升压、升压后电压经过所述高频加热电路会高频振荡形成电磁波、产生高频的交变电压和电流、然后输出；输出的交变电压和电流通过所述感应加热会产生感应磁场形成涡流、金属物体在感应加热的电路中会发生电磁感应效应然后发热。(The invention discloses a high-frequency electromagnetic induction control circuit, which comprises: the device comprises a charge control circuit, a battery control protection circuit, a battery, a main control MCU, a display control circuit, a key control circuit, a drive circuit, a high-frequency heating circuit and an induction heating circuit, wherein the charge control circuit provides required charge voltage and charge current for the battery; the output alternating voltage and current can generate an induction magnetic field to form an eddy current through the induction heating, and the metal object can generate an electromagnetic induction effect in an induction heating circuit and then generate heat.)

1. A high frequency electromagnetic induction control circuit, comprising: the charging control circuit provides required charging voltage and charging current for the battery, the battery control protection detects whether the charging voltage and the charging current are qualified or not, the battery supplies power for the main control MCU, then the battery input voltage is detected by the main control MCU and indicated by the display control, whether the battery is in an undervoltage state or not is detected, the key control circuit controls the main control MCU to operate, then the main control MCU outputs voltage which is boosted by the driving circuit, and the boosted voltage can oscillate at high frequency through the high-frequency heating circuit to form electromagnetic waves, generate high-frequency alternating voltage and current and then output; the output alternating voltage and current can generate an induction magnetic field to form an eddy current through the induction heating, and the metal object can generate an electromagnetic induction effect in an induction heating circuit and then generate heat.

2. The high-frequency electromagnetic induction control circuit according to claim 1, wherein the charging control circuit is used for converting household 220V/23A alternating current into 5V/2A direct current charging voltage and charging current required by the battery.

3. The high-frequency electromagnetic induction control circuit according to claim 1, wherein the battery control protection is to detect whether the charging voltage and the charging current are in accordance with the voltage and the current required by the battery, and plays a role in overcurrent and overvoltage protection.

4. The battery adopts two or more batteries of any type, each battery adopts a serial or parallel connection mode, and the voltage can be input under a full-power state to supply power to the main control MCU and each circuit.

5. The high-frequency electromagnetic induction control circuit according to claim 1, wherein the main control MCU can detect whether the battery is in an undervoltage state after the battery is powered, and if the battery is in the undervoltage state, the main control MCU feeds back undervoltage information to the display control and charging control circuit, and the display control sends out an undervoltage signal, and the charging control circuit continues to charge the battery after receiving the feedback information until the battery is fully charged.

6. The high-frequency electromagnetic induction control circuit according to claim 1, wherein the key control circuit controls the main control MCU to stop working and operate, switches the working mode and power variation of the main control MCU, and the main control MCU can feed back the information of the stop working and operation status and the information of the working mode and power variation to the display control, and the display control displays each information.

7. A high frequency electromagnetic induction control circuit as claimed in claim 1, wherein said drive circuit is equivalent to a step-up transformer for stepping up a dc voltage inputted from said battery.

8. A high-frequency electromagnetic induction control circuit according to claim 1, wherein said high-frequency heating circuit is composed of a capacitor and an inductor, and is configured to generate and output a high direct-current voltage outputted from said drive circuit by oscillating the high direct-current voltage at a high frequency to form an electromagnetic wave, and to make the high direct-current voltage exhibit a periodic variation in forward and reverse directions, and to generate a high-frequency alternating voltage and current.

9. A high-frequency electromagnetic induction control circuit according to claim 1, wherein the induction heating is composed of a metal coil having a good electric conductivity and a metal container, and the metal coil generates an induction magnetic field in which the metal container itself generates heat by passing an alternating voltage and a current of a high frequency to be output.

Technical Field

The invention relates to a high-frequency electromagnetic induction control circuit. It further relates to circuits that can heat any metal conductor without the need to contact the metal conductor for power.

Background

Electromagnetic induction phenomenon refers to a conductor placed in a changing magnetic flux, which generates an electromotive force. The electromotive force is called induced electromotive force or induced electromotive force, the conductor is closed into a loop, the electromotive force drives electrons to flow to form induced current, the internal relation between electricity and magnetism is disclosed, an experimental foundation is laid for the mutual conversion between electricity and magnetism, a road is opened for people to obtain huge and cheap electric energy, and the invention has great significance; the discovery of the phenomenon of electromagnetic induction has marked the arrival of a significant industrial and technical revolution. The wide application of electromagnetic induction in electricians, electronic technology, electrification and automation has proved to play an important role in promoting social productivity and the development of scientific technology.

At present, the conventional heating principle is that a control circuit is connected to a metal resistor to output current and then the metal resistor heats, a circuit for heating a metal conductor by using an electromagnetic induction control circuit is not used, the output power during working is low, the heating amount is small, the heating temperature is uncontrollable, and the heating principle and the heating function are not innovative and do not meet related market requirements.

Disclosure of Invention

The invention aims to provide a high-frequency electromagnetic induction control circuit which can heat any conductor without a heating element. The method is used for solving the technical problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a high frequency electromagnetic induction control circuit, comprising: the charging control circuit provides required charging voltage and charging current for the battery, the battery control protection detects whether the charging voltage and the charging current are qualified or not, the battery supplies power for the main control MCU, then the battery input voltage is detected by the main control MCU and indicated by the display control, whether the battery is in an undervoltage state or not is detected, the key control circuit controls the main control MCU to operate, then the main control MCU outputs voltage which is boosted by the driving circuit, and the boosted voltage can oscillate at high frequency through the high-frequency heating circuit to form electromagnetic waves, generate high-frequency alternating voltage and current and then output; the output alternating voltage and current can generate an induction magnetic field to form an eddy current through the induction heating, and the metal object can generate an electromagnetic induction effect in an induction heating circuit and then generate heat.

Preferably, the charging control circuit is used for converting the household 220V/23A alternating current into a 5V/2A direct current charging voltage and charging current required by the battery.

Preferably, the battery control protection is to detect whether the charging voltage and the charging current are in accordance with the voltage and the current required by the battery, and plays a role in overcurrent and overvoltage protection.

Preferably, the battery adopts two or more batteries of any type, each battery adopts a series or parallel connection mode, and the battery can input voltage and supply power to the main control MCU and each circuit in a full-power state.

Preferably, the main control MCU can detect whether the battery is in an undervoltage state after the battery supplies power, and if the battery is in the undervoltage state, the main control MCU feeds the undervoltage information back to the display control and charging control circuit, the display control sends an undervoltage signal, and the charging control circuit continues to charge the battery after receiving the feedback information until the battery is fully charged.

Preferably, the key control circuit controls the main control MCU to stop working and operate, switches the working mode and power variation of the main control MCU, and the main control MCU can feed back the information of the working state and power variation to the display control, and the display control displays various information.

Preferably, the drive circuit is configured to boost a dc voltage input from the battery by a step-up transformer.

Preferably, the high-frequency heating circuit includes a capacitor and an inductor, and generates and outputs a high-frequency alternating voltage and a high-frequency alternating current by oscillating a high-frequency direct current voltage outputted from the driving circuit into an electromagnetic wave so that the high-frequency direct current voltage periodically changes in the forward and reverse directions.

Preferably, the induction heating is composed of a metal coil having good conductivity and a metal container, and the metal container itself generates heat in the induction magnetic field by generating the induction magnetic field by passing an output high-frequency alternating voltage and current through the metal coil.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the circuitry particularly pointed out in the written description and drawings.

Drawings

The present invention will be described in detail below with reference to the accompanying drawings so that the above advantages of the present invention will be more apparent. Wherein the content of the first and second substances,

FIG. 1 is a connection diagram of Q19

FIG. 2 is a connection diagram of J2

FIG. 3 is a connection diagram of Q9

FIG. 4 is a connection diagram of C1

FIG. 5 is a connection diagram of C20

FIG. 6 is a connection diagram of C23

FIG. 7 is a connection diagram of R15

FIG. 8 is a connection diagram of U10

FIG. 9 is a connection diagram of U1

FIG. 10 is a connection diagram of U3

FIG. 11 is a connection diagram of D4

FIG. 12 is a connection diagram of R48

FIG. 13 is a connection diagram of U8

FIG. 14 is a connection diagram of R73

FIG. 15 is a connection diagram of U2

FIG. 16 is a connection diagram of D10

FIG. 17 is a connection diagram of R9

FIG. 18 is a connection diagram of R55

FIG. 19 is a connection diagram of R81

FIG. 20 is a connection diagram of P73, P74 and P75

FIG. 21 is a connection diagram of C28

FIG. 22 is a connection diagram of R38

FIG. 23 is a connection diagram of R70

FIG. 24 is a connection diagram of D10

FIG. 25 is a connection diagram of C45

FIG. 26 is a connection diagram of R61

FIG. 27 is a schematic circuit diagram

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.

Specifically, as shown in fig. 1 to 3, in order to solve the disadvantages of the prior art, a high frequency electromagnetic induction control circuit includes: the charging control circuit provides required charging voltage and charging current for the battery, and after the input voltage of the battery is detected by the main control MCU, the display control circuit gives an indication to judge whether the battery is in an undervoltage state; if not, the main control MCU feeds information back to the battery, then the input voltage of the battery is boosted through the driving circuit, the boosted voltage is subjected to high-frequency oscillation through the high-frequency heating circuit to form electromagnetic waves, and high-frequency alternating voltage and current are generated and then output; the output alternating voltage and current can generate an induction magnetic field to form eddy current through the induction heating circuit, and the object can generate electromagnetic induction effect in the induction heating circuit and then generate heat, so that the electromagnetic energy is converted into heat energy.

Further, it is preferable that: the charging control circuit is used for converting the household 220V/23A alternating current into 5V/1A direct current charging voltage and charging current required by the battery; the battery adopts two batteries of 18650 models, each battery adopts a series connection mode of 3.7V, and 8.4V voltage can be input under a full-power state to supply power to the main control MCU and each circuit.

Further, it is preferable that: the main control MCU can detect whether the battery is in an underpower state after the power is supplied by the battery, if the battery is in the underpower state, the main control MCU can feed the underpower information back to the display control and charging control circuit, the display control sends an underpower signal, and the charging control circuit continues to charge the battery after receiving the feedback information until the battery is fully charged.

Further, it is preferable that: the driving circuit is equivalent to a step-up transformer for stepping up the dc voltage inputted from the battery.

Further, it is preferable that: the high-frequency heating circuit consists of a capacitor and an inductor, and can make the high direct-current voltage output by the driving circuit form electromagnetic waves through high-frequency oscillation, make the high direct-current voltage present periodic variation in positive and negative directions, generate high-frequency alternating voltage and current and then output the alternating voltage and current.

Further, it is preferable that: the induction heating is that alternating voltage and current output by a high-frequency heating circuit generate an induction magnetic field through the induction heating circuit to form eddy current, and a conductor generates electromagnetic induction effect in the induction heating circuit and then generates heat, so that electromagnetic energy is converted into heat energy, and the induction heating is very suitable for real life.