Inductance circuit board and electric flame stove

Abstract

The utility model discloses an inductance circuit board which comprises a substrate and a plurality of inductors arranged on the substrate. Each inductor comprises a winding arranged on the upper surface layer and the lower surface layer of the substrate and a magnetic core arranged in the center of the winding, each winding is composed of N layers of spiral coils, an insulating layer is arranged between every two layers of spiral coils, and the inductors are sequentially connected in series; and a layer of insulating film is laid on the surface of the substrate and covers the winding. According to the utility model, the plurality of inductors are arranged on the substrate and integrally form the inductor circuit board, and the spiral coils are laid on the upper and lower surfaces of the substrate, so that the height or width of the inductor circuit board is reduced, the whole inductor is more compact, and the inductor circuit board can be vertically arranged and also can be horizontally arranged; circuit arrangement requirements in different scenes are met, and circuit arrangement in the stove body is facilitated; the inductors are sequentially connected in series, so that the voltage borne by each inductor is relatively reduced, and the heat and energy loss generated by the inductors is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an inductance circuit board, and particularly relates to an electric flame cooker. BACKGROUND

[0002] The electric flame cooker is a kitchen cooker which generates high-temperature plasma flame by high-voltage electrode discharge to heat a pot. In the prior art, a high-voltage circuit usually uses a large inductance, a high-voltage capacitor and a high-voltage resistor to form a resonance circuit to achieve resonance effect. The large inductance occupies a large space and is not convenient for the design of electronic devices in the cooker body. In addition, the coil turns of the large inductance in the prior art generate more heat, which is large in energy loss and is not conducive to heat dissipation. SUMMARY

[0003] The utility model discloses to overcome the above-mentioned situation's insufficient, aims at providing a kind of technical scheme that can solve above-mentioned problem.

[0004] An inductance circuit board, comprising: a substrate and a plurality of inductances provided on the substrate; each inductance comprises a winding provided on the upper and lower surfaces of the substrate and a magnetic core provided at the center of the winding, the winding is composed of N layers of spiral coils, and an insulating layer is provided between each layer of spiral coils; the inductances are connected in series; an insulating film is provided on the surface of the substrate and covers the winding.

[0005] Preferably, the substrate is provided with at least 8 inductances.

[0006] Preferably, the spiral coils are flat, and the number of spiral coils of the same inductance is not more than 4.

[0007] Preferably, a plurality of openings are provided on the substrate, and the spiral coils of the same inductance close to the upper and lower surfaces of the substrate are electrically connected through the openings.

[0008] Preferably, the magnetic core is an E-shaped magnetic core.

[0009] An electric flame cooker, comprising any one of the above, further comprising a high-voltage capacitor and a high-voltage resistor, and the inductance circuit board, the high-voltage capacitor and the high-voltage resistor form a resonance circuit.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. The inductances are connected in series, which reduces the voltage each inductance bears, thereby reducing the heat and energy loss generated by the inductances.

[0012] 2. The utility model discloses a plurality of inductances are installed on the substrate and integrated to constitute an inductance circuit board, and the spiral coil is laid on the upper and lower surfaces of the substrate, so that the height or width of the inductance circuit board is reduced, the whole inductance is more compact, the inductance circuit board can be vertically installed or horizontally installed, and circuit arrangement requirements in different scenes are adapted, and circuit arrangement in the stove body is facilitated.

[0013] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Fig. 1 It is the internal structure schematic diagram of the electric flame stove of the utility model.

[0016] Fig. 2 It is the exploded view of the inductance circuit board.

[0017] Fig. 3 It is the cross section schematic diagram of the winding. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model.

[0020] Further, in the description of the utility model, unless there is another explicit provision and limitation, the terms "mounting", "connecting", "connection" and the like should be broadly understood, for example, it can be fixed connection, or it can be detachable connection, or integral connection, it can be mechanical connection, or it can be electrical connection, it can be direct connection, or it can be indirect connection through intermediate medium, it can be internal communication of two elements, it can be wireless connection, or it can be wired connection. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0021] In addition, the technical features involved in the different embodiments of the utility model described subsequently can be combined with each other as long as they do not conflict with each other.

[0022] Please refer to Figs. 1-3 In the embodiment of the utility model, an inductance circuit board comprises a substrate 100 and a plurality of inductances 200 arranged on the substrate 100.

[0023] Each of the inductances 200 comprises a winding 210 arranged on the upper and lower surfaces of the substrate 100 and a magnetic core 220 arranged at the center of the winding 210, the winding 210 is composed of a plurality of spiral coils 211, a plurality of inductances 200 are mounted on the substrate 100 and integrated to form an inductance circuit board, the spiral coils 211 are laid on the upper and lower surfaces of the substrate 100, so that the height or width of the inductance circuit board is limited, a larger inductive inductance 200 value can be realized in a limited space, the size of the inductance 200 is reduced, the entire inductance 200 is more compact, the inductance 200 circuit board can be installed vertically or horizontally, which adapts to the circuit layout requirements in different scenes and improves the flexibility of the circuit system, facilitating the circuit layout in the stove body.

[0024] The inductances 200 are connected in series one by one, the series inductances 200 will distribute voltage to each inductance 200, so that the voltage borne by each inductance 200 is relatively reduced, thereby reducing the heat and energy loss generated by the inductance 200.

[0025] As shown in Fig. 3 An insulating layer 300 is arranged between each layer of spiral coils 211, and an insulating film 400 is laid on the surface of the substrate 100 and covers the winding 210.

[0026] The substrate 100 is provided with at least 8 inductances 200, and more inductances 200 can be arranged according to different power supply parameters and other parameters, for example, 10, 12 or more, such design can flexibly adapt to power supplies of different frequency alternating currents. Such multi-inductance 200 series connection design can effectively disperse the load of the inductance 200, reduce the voltage on the single inductance 200 and reduce the energy loss in the circuit system.

[0027] As Figs. 2-3 shown, the spiral coil 211 is flat, the flat spiral coil 211 has larger cross-sectional area than the traditional circular coil, thus reducing the resistance of the conductor and reducing the resistance loss inside the coil. The spiral coil 211 of the same inductor 200 is not more than 4 layers, that is, the same inductor 200 is provided with two layers of spiral coils 211 on one side of the substrate 100 and two layers of spiral coils 211 on the other side of the substrate 100, which increases the heat dissipation surface and prevents the cross-influence and accumulation of heat of the spiral coil 211. In the embodiment, the spiral coil 211 on the same inductor 200 can also be provided with two layers according to other parameters.

[0028] As Fig. 3 shown, the substrate 100 is provided with a plurality of openings 110, and the spiral coils 211 close to the upper and lower surfaces of the substrate 100 of the same inductor 200 are electrically connected through the openings 110.

[0029] As Fig. 2 shown, the magnetic core 220 is an E-shaped magnetic core 220.

[0030] As Fig. 1 shown, in a second embodiment, an electric flame stove, comprising any of the above, further comprising a high-voltage capacitor 500 and a high-voltage resistor 600, and the inductor 200 circuit board and the high-voltage capacitor 500 and the high-voltage resistor 600 form a resonant circuit.

[0031] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. An inductor circuit board for use in an electric flame stove, comprising a substrate and a plurality of inductors disposed on the substrate; characterized in that: Each inductor includes windings disposed on the upper and lower surfaces of a substrate and a magnetic core disposed in the center of the windings. The windings are composed of N layers of spiral coils, with an insulating layer between each layer of spiral coils, and the inductors are connected in series. An insulating film is laid on the surface of the substrate and covers the windings.

2. The inductor circuit board according to claim 1, characterized in that, The substrate has at least 8 inductors.

3. The inductor circuit board according to claim 2, characterized in that, The spiral coil is flat in shape, and there are no more than 4 layers of spiral coils with the same inductance.

4. The inductor circuit board according to claim 3, characterized in that, The substrate has several openings, and the spiral coils of the same inductor, which are close to the upper and lower surfaces of the substrate, are electrically connected through the openings.

5. The inductor circuit board according to claim 1, characterized in that, The magnetic core is an E-shaped magnetic core.

6. An electric flame stove, characterized in that, Including any one of claims 1-5, it further includes a high-voltage capacitor and a high-voltage resistor, wherein the inductor circuit board, the high-voltage capacitor, and the high-voltage resistor constitute a resonant circuit.

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