Voltage doubling rectifying circuit board and electric flame stove

Abstract

The utility model discloses a voltage-multiplying rectifying circuit board, which is used for an electric flame stove and comprises a printed circuit board (PCB) and a plurality of groups of voltage-multiplying units arranged on the PCB, an insulating partition plate is arranged in a gap between each group of voltage-multiplying units, and the insulating partition plate is a rectangular partition plate; the single-group voltage-multiplying unit comprises N diodes and capacitors, N is greater than 20, and the diodes and the capacitors are arranged on the upper surface and the lower surface of the PCB; insulating adhesive layers are laid on the surfaces of the voltage-multiplying unit and the insulating partition plate. According to the utility model, the insulating separator plates are arranged between the voltage-multiplying units, and the insulating adhesive layers with limited thickness are laid between the insulating separator plates and the voltage-multiplying units, so that good heat dissipation of the diodes and the capacitors of the voltage-multiplying units is ensured, and creepage between the voltage-multiplying units is prevented.

Description

Technical Field

[0001] The utility model specifically relates to the insulation of a voltage doubler rectifier circuit board. Background Art

[0002] The voltage doubler rectifier circuit board is a circuit board that provides a DC high voltage for the burner of an electric flame stove. Each voltage doubler unit is composed of multiple diodes and multiple capacitors. Since arcing occurs between each diode and capacitor, the existing technology usually wraps the surface of the diode and capacitor with insulating glue. However, the diode and capacitor need to be insulated, and the diode and capacitor themselves also need good heat dissipation. Therefore, the insulating glue can only be selected from materials with good insulation and thermal conductivity, and the thickness of the laid insulating glue is also limited, which makes it easy for creepage to occur between each group of voltage doubler units. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0004] A voltage doubling rectifier circuit board, comprising: a PCB board and a plurality of groups of voltage doubling units arranged on the PCB board; an insulating partition is arranged in the gap between each group of voltage doubling units, and the insulating partition is a rectangular partition; a single group of voltage doubling units comprises N diodes and capacitors, wherein N is greater than 20, and the diodes and capacitors are arranged on the upper and lower surfaces of the PCB board; an insulating adhesive layer is laid on the surfaces of the voltage doubling units and the insulating partitions;

[0005] Preferably, the PCB board is also provided with voltage doubling output terminals corresponding to the voltage doubling units one by one, and the voltage doubling output terminals are electrically connected to the corresponding voltage doubling units through tube wires;

[0006] Preferably, the blank space of the PCB board is hollowed out.

[0007] The utility model also provides an electric flame cooker, which is characterized by comprising any one of the above-mentioned voltage-doubling rectifier circuit boards.

[0008] Compared with the prior art, the utility model has the following advantages: the utility model provides insulating partitions between each group of voltage doubling units, and lays an insulating rubber layer of limited thickness between the insulating partitions and the voltage doubling units, thereby ensuring good heat dissipation of the diodes and capacitors of the voltage doubling units and preventing creepage between the voltage doubling units.

[0009] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model before the voltage doubling unit is sealed.

[0012] In the figure: 1. PCB board; 2. voltage doubling unit; 3. insulating partition; 5. voltage doubling output terminal. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0015] In addition, in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal communication of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] In addition, the technical features involved in the different embodiments of the present invention described later can be combined with each other as long as they do not conflict with each other.

[0017] See also Figure 1 In an embodiment of the utility model, a voltage doubling rectifier circuit board comprises: a PCB board 1 and a plurality of voltage doubling units 2 arranged on the PCB board 1;

[0018] An insulating partition 3 is provided in the gap between each group of voltage doubling units 2. The insulating partition 3 is a rectangular partition, and an insulating glue layer is laid on the surface of the voltage doubling unit 2 and the insulating partition 3. The insulating partition 3 can be made of epoxy resin material, or other materials with good insulation properties, and insulating glue is coated on the surface of the diode, capacitor and insulating partition 3 at the same time. This design prevents creepage from occurring in each group of voltage doubling units 2, and the diodes and capacitors can dissipate heat through thermal conductivity of the insulating glue with limited thickness.

[0019] A single voltage doubling unit 2 includes N diodes and capacitors, where N is greater than 20, and the diodes and capacitors are arranged on the upper and lower surfaces of the PCB board 1; the single voltage doubling unit 2 independently provides a voltage doubling high voltage for the arc effect for the corresponding single plasma torch on the furnace head, and separately arranging the diodes and capacitors on the upper and lower surfaces of the PCB board 1 is beneficial to heat dissipation and insulation.

[0020] The PCB board 1 is also provided with a voltage doubling output terminal 5 corresponding to the voltage doubling unit 2. The voltage doubling output terminal 5 is electrically connected to the corresponding voltage doubling unit 2 through a tube line; the voltage doubling output terminal 5 is electrically connected to the plasma torch on the corresponding furnace head.

[0021] The blank space of the PCB board 1 is hollowed out, which reduces the material of the PCB board 1 and reduces the cost, and prevents the PCB board 1 from generating creepage in a humid environment.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A voltage doubler rectifier circuit board for an electric flame cooker, characterized in that: It includes: a PCB board and a plurality of voltage doubling units arranged on the PCB board; An insulating partition is provided in the gap between each group of voltage doubling units, and the insulating partition is a rectangular partition; A single voltage doubling unit includes N diodes and capacitors, wherein N is greater than 20, and the diodes and capacitors are arranged on the upper and lower surfaces of the PCB board; An insulating rubber layer is laid on the surfaces of the voltage multiplier unit and the insulating partition.

2. The voltage doubler rectifier circuit board according to claim 1, characterized in that: The PCB board is also provided with voltage doubling output terminals corresponding to the voltage doubling units one by one, and the voltage doubling output terminals are electrically connected to the corresponding voltage doubling units through tube wires.

3. The voltage doubler rectifier circuit board according to claim 1, characterized in that: The blank space of the PCB board is hollowed out.

4. An electric flame cooker, characterized in that: A voltage doubler rectifier circuit board comprising any one of claims 1-3.

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