Anti-interference circuit board for electric flame stove and electric flame stove

Abstract

This utility model discloses an anti-interference circuit board for an electric flame stove and an electric flame stove. The anti-interference circuit board for the electric flame stove includes a first circuit board and a second circuit board suspended above and parallel to the first circuit board. The signal generation circuit is disposed on the second circuit board, and the rectifier filter circuit, inverter circuit, and resonant boost circuit are all disposed on the first circuit board. The inverter circuit of the first circuit board is electrically connected to the signal generation circuit of the second circuit board via a pin socket. There is a gap between the second circuit board and the first circuit board; this gap serves to increase the distance between the signal generation circuit and other circuits, effectively reducing high-frequency interference and thus ensuring the stability of signal transmission.

Description

Technical Field

[0001] This utility model relates to the field of electric flame stove technology, and in particular to an anti-interference circuit board for an electric flame stove and an electric flame stove. Background Technology

[0002] As a modern kitchen cooking appliance, electric flame stoves have unique advantages in practical use. Compared with traditional gas stoves, electric flame stoves do not rely on gas pipelines but generate heat through electrical energy conversion, making them safer and more reliable. In addition, electric flame stoves are easy to operate, ignite quickly, and have high energy efficiency, which is of great significance for environmental protection and energy conservation.

[0003] Among them, the burner head of the electric flame stove is the most important part. The burner head is equipped with an electric flame component, which is used to generate an electric arc and transfer the heat of the electric arc to the pot body for stewing, steaming and stir-frying.

[0004] In existing technologies, such as the patent application publication number CN112097293A, a high-efficiency electric flame stove with external circulation of working medium is disclosed. The electric flame generation circuit includes a rectifier filter circuit, an inverter circuit, a resonant boost circuit, a signal generation circuit, and multiple parallel discharge point pairs. The signal generation circuit outputs an adjustable square wave signal to the inverter circuit, thereby controlling the inverter circuit to output an adjustable high-frequency square wave signal. This, in turn, causes the resonant boost circuit to output an adjustable and controllable high-voltage sine wave signal to the discharge point pairs, thereby generating an adjustable and stable open flame with adjustable output power and flame size, achieving functions such as heating. This solves the problems of uncontrollable and unstable electric flame generation in existing technologies.

[0005] However, the above-mentioned existing technology still has the following defects: all circuits are integrated on a single circuit board, and high voltage and high current often pass between the third and fourth switching transistors of the inverter bridge in the inverter circuit, and the circuit direction may also change. The instantaneously changing high voltage and high current signals will cause significant interference and impact on surrounding small signal circuits, such as signal generation circuits.

[0006] Therefore, in this utility model patent application, the applicant has carefully researched an anti-interference circuit board for an electric flame stove and an electric flame stove to solve the above problems. Utility Model Content

[0007] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide an anti-interference circuit board and an electric flame stove for electric flame stoves. It serves to increase the distance between the signal generation circuit and other circuits, effectively reducing high-frequency interference and thus ensuring the stability of signal transmission.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An anti-interference circuit board for an electric flame stove integrates an electric flame-generating circuit and electrically connects multiple parallel-connected discharge point pairs. The electric flame-generating circuit includes a rectifier and filter circuit, an inverter circuit, a resonant boost circuit, and a signal generation circuit. The rectifier and filter circuit, the inverter circuit, the resonant boost circuit, and the multiple discharge point pairs are sequentially and electrically connected. The inverter circuit is also electrically connected to the signal generation circuit.

[0010] The device includes a first circuit board and a second circuit board that is suspended above and parallel to the first circuit board. The signal generation circuit is disposed on the second circuit board. The rectifier filter circuit, inverter circuit, and resonant boost circuit are all disposed on the first circuit board. The inverter circuit of the first circuit board is electrically connected to and signal-connected to the signal generation circuit of the second circuit board through a pin socket. There is a gap between the second circuit board and the first circuit board.

[0011] As a preferred embodiment, the gap is 2 cm.

[0012] As a preferred embodiment, an insulating cloth is provided on the lower end surface of the first circuit board at the position where the projection of the second circuit board onto the first circuit board is located.

[0013] As a preferred embodiment, the insulating cloth is provided with a heat-dissipating aluminum base.

[0014] As a preferred embodiment, the pins are disposed on the second circuit board, and the socket is disposed on the first circuit board at the end away from the inverter circuit.

[0015] An electric flame stove includes an anti-interference circuit board as described above for an electric flame stove.

[0016] This utility model has significant advantages and beneficial effects compared with the prior art, specifically:

[0017] Its main function is to set the signal generation circuit separately on the second circuit board and suspend it parallel to the first circuit board, which can increase the distance between the signal generation circuit and other circuits, effectively reduce high-frequency interference, and thus ensure the stability of signal transmission.

[0018] Secondly, the 2cm gap helps to better avoid the effects of high-frequency interference, further ensuring the stability of signal transmission;

[0019] Furthermore, by placing the socket on the end of the first circuit board away from the inverter circuit, it can be kept away from the resonant boost circuit, thereby better avoiding the influence of high-frequency interference and further ensuring the stability of signal transmission.

[0020] Furthermore, an insulating cloth is provided at the position of the projection of the second circuit board onto the lower end surface of the first circuit board, and a heat dissipation aluminum base is provided on the insulating cloth, which improves the heat dissipation effect while preventing the heat dissipation aluminum base from directly contacting the lower surface of the first circuit board.

[0021] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the anti-interference circuit board structure for an electric flame stove according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0024] Explanation of reference numerals in the attached diagram:

[0025] 11. First circuit board

[0026] 12. Second circuit board

[0027] 13. Insert pin

[0028] 14. Socket

[0029] 15. Gap

[0030] 16. Insulating cloth

[0031] 17. Aluminum heat dissipation base. Detailed Implementation

[0032] Please refer to Figure 1 and Figure 2 As shown, this illustrates the specific structure of an embodiment of the present invention: an anti-interference circuit board for an electric flame stove, which integrates an electric open flame circuit and electrically connects multiple parallel discharge point pairs. The anti-interference circuit board for the electric flame stove includes a first circuit board 11 and a second circuit board 12 suspended above and parallel to the first circuit board 11.

[0033] The electric open flame circuit includes a rectifier and filter circuit, an inverter circuit, a resonant boost circuit, and a signal generation circuit; the rectifier and filter circuit, the inverter circuit, the resonant boost circuit, and multiple discharge point pairs are electrically connected in sequence, and the inverter circuit is also electrically connected to the signal generation circuit.

[0034] The signal generation circuit is located on the second circuit board 12, and the rectifier filter circuit, inverter circuit and resonant boost circuit are all located on the first circuit board 11. The inverter circuit of the first circuit board 11 is electrically connected to and signal-connected to the signal generation circuit of the second circuit board 12 through the pin 13 socket 14.

[0035] The pin 13 is disposed on the second circuit board 12, and the socket 14 is disposed on the first circuit board 11 at the end away from the inverter circuit. This is to avoid signal crosstalk between the resonant boost circuit and the signal generation circuit.

[0036] A gap 15 exists between the second circuit board 12 and the first circuit board 11. Preferably, the gap 15 is 2 cm. This gap 15 can avoid the influence of high voltage and high frequency interference, thereby reducing crosstalk.

[0037] An insulating cloth 16 is provided on the lower end surface of the first circuit board 11 at the position where the second circuit board 12 projects onto the first circuit board 11. A heat dissipation aluminum base 17 is provided on the insulating cloth 16.

[0038] By placing an insulating cloth 16 between the first circuit board 11 and the heat dissipation aluminum base 17, the heat dissipation aluminum base 17 is prevented from directly contacting the lower surface of the first circuit board 11, thereby reducing the oxidation rate of the lower surface of the first circuit board 11 caused by prolonged contact under magnetic influence.

[0039] Preferably, the insulating cloth 16 can be acetate cloth, which uses cellulose acetate cloth as the base material and has the characteristics of high temperature resistance, solvent resistance, and good aging resistance. It also has stable and reliable performance, good insulation, flame retardancy, and high viscosity.

[0040] An electric flame stove includes an anti-interference circuit board as described above for an electric flame stove.

[0041] The key design feature of this invention is that the signal generation circuit is separately placed on the second circuit board and suspended and parallel to the first circuit board. This serves to increase the distance between the signal generation circuit and other circuits, effectively reducing high-frequency interference and thus ensuring the stability of signal transmission.

[0042] Secondly, the 2cm gap helps to better avoid the effects of high-frequency interference, further ensuring the stability of signal transmission;

[0043] Furthermore, by placing the socket on the end of the first circuit board away from the inverter circuit, it can be kept away from the resonant boost circuit, thereby better avoiding the influence of high-frequency interference and further ensuring the stability of signal transmission.

[0044] Furthermore, an insulating cloth is provided at the position of the projection of the second circuit board onto the lower end surface of the first circuit board, and a heat dissipation aluminum base is provided on the insulating cloth, which improves the heat dissipation effect while preventing the heat dissipation aluminum base from directly contacting the lower surface of the first circuit board.

[0045] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An anti-interference circuit board for an electric flame stove, comprising an electric flame-generating circuit and electrically connected to multiple parallel discharge point pairs, the electric flame-generating circuit including a rectifier filter circuit, an inverter circuit, a resonant boost circuit, and a signal generation circuit; the rectifier filter circuit, the inverter circuit, the resonant boost circuit, and the multiple discharge point pairs are sequentially electrically connected, and the inverter circuit is also electrically connected to the signal generation circuit, characterized in that: The device includes a first circuit board and a second circuit board that is suspended above and parallel to the first circuit board. The signal generation circuit is disposed on the second circuit board. The rectifier filter circuit, inverter circuit, and resonant boost circuit are all disposed on the first circuit board. The inverter circuit of the first circuit board is electrically connected to and signal-connected to the signal generation circuit of the second circuit board through a pin socket. There is a gap between the second circuit board and the first circuit board.

2. The anti-interference circuit board for an electric flame stove according to claim 1, characterized in that: The gap is 2cm.

3. The anti-interference circuit board for an electric flame stove according to claim 1, characterized in that: An insulating cloth is provided on the lower end surface of the first circuit board at the position where the projection of the second circuit board onto the first circuit board is located.

4. The anti-interference circuit board for an electric flame stove according to claim 3, characterized in that: A heat-dissipating aluminum base is provided on the insulating cloth.

5. The anti-interference circuit board for an electric flame stove according to claim 1, characterized in that: The pins are disposed on the second circuit board, and the socket is disposed on the first circuit board at the end away from the inverter circuit.

6. An electric flame stove, characterized in that: It includes an anti-interference circuit board for an electric flame stove as described in any one of claims 1 to 5.

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