Circuit board structure, burner head and electric gas range

Abstract

The application discloses a circuit board structure, a furnace head and an electric gas stove. The circuit board structure comprises a circuit board main body; a first conductive ring and a second conductive ring divide the circuit board main body into an outer ring circuit board, a middle ring circuit board and an inner ring circuit board; the first conductive ring and the second conductive ring are electrically connected with two poles of a power supply respectively; a plurality of first pin holes are arranged on the outer ring circuit board, and any first pin hole is electrically connected with the first conductive ring; the middle ring circuit board is provided with a plurality of second pin holes, and any second pin hole is electrically connected with the second conductive ring; the inner ring circuit board is provided with a plurality of third pin holes and a plurality of fourth pin holes, any third pin hole is electrically connected with the first conductive ring, and any fourth pin hole is electrically connected with the second conductive ring. According to the application, the arrangement of the circuit board is changed, a part of plasma needles is connected with a positive pole of the power supply, and another part of plasma needles adjacent to the part is connected with a negative pole of the power supply, so that a stable plasma flame is generated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric gas stoves, in particular to a circuit board structure, a burner and an electric gas stove. BACKGROUND

[0002] The electric gas stove is a new type of stove that uses the characteristics of plasma to form a hot plasma by high-voltage electric breakdown of air, converts electric energy into heat energy, and finally obtains a hot plasma beam with ideal functions, generates a hot plasma beam with flame-like characteristics to heat the pot for cooking. In the prior art, the plasma needle head is connected to the live wire, and the pot is connected to the zero line. Once the pot is removed, the zero line will be disconnected, and the plasma flame will disappear. Tossing the pot is a common operation in Chinese cooking, and the disappearance of the plasma flame will affect the cooking effect. Therefore, a more stable electric gas stove ionization technology is needed. SUMMARY

[0003] Therefore, the present application provides a circuit board structure, a burner and an electric gas stove to solve the problem of unstable plasma flame in the prior art, and the plasma flame disappears when the pot is removed.

[0004] To achieve one or part or all of the above purposes or other purposes, the present application provides a circuit board structure for an electric gas stove, comprising a circuit board body;

[0005] A first conductive ring and a second conductive ring are arranged on the circuit board body, and the first conductive ring and the second conductive ring divide the circuit board body into an outer ring circuit board, a middle ring circuit board and an inner ring circuit board;

[0006] The first conductive ring is electrically connected to one pole of a power supply, and the second conductive ring is electrically connected to another pole of the power supply;

[0007] A plurality of first needle holes are arranged on the outer ring circuit board in a circumferential direction, any first needle hole is electrically connected to the first conductive ring, the middle ring circuit board is provided with a plurality of second needle holes arranged in a circumferential direction, any second needle hole is electrically connected to the second conductive ring; a plurality of third needle holes and a plurality of fourth needle holes are arranged on the inner ring circuit board, the third needle holes and the fourth needle holes are arranged in a spaced manner, any third needle hole is electrically connected to the first conductive ring, and any fourth needle hole is electrically connected to the second conductive ring.

[0008] Further, the circuit board structure further comprises a plurality of capacitor components, any first needle hole and the first conductive ring are electrically connected through a capacitor component, any second needle hole and the second conductive ring are electrically connected through a capacitor component, any third needle hole and the first conductive ring are electrically connected through a capacitor component, and any fourth needle hole and the second conductive ring are electrically connected through a capacitor component.

[0009] Further, the capacitor components are all straight-in capacitors.

[0010] Further, any of the first pinhole, the second pinhole, the third pinhole and the fourth pinhole is connected with a conductive sheet, and the conductive sheet is provided with an electrical connection point, and the capacitor component is electrically connected with the pinhole through the electrical connection point.

[0011] Further, the capacitor component is composed of one patch capacitor or a plurality of patch capacitors connected in series.

[0012] Further, the circuit board body is provided with a plurality of hollow structures, and the patch capacitor is installed on the hollow structure.

[0013] Further, the inner ring circuit board is connected with an electrical connection sheet, and the plurality of third pinholes are electrically connected with the electrical connection sheet, and the electrical connection sheet is electrically connected with the first conductive ring.

[0014] Further, the circuit board body is further connected with a conductive rod, and the electrical connection sheet is provided with at least one connection end, and any of the connection ends is electrically connected with the first conductive ring through the conductive rod.

[0015] To achieve one or part or all of the above purposes or other purposes, the application further proposes a furnace head, which comprises the circuit board structure of any of the above.

[0016] To achieve one or part or all of the above purposes or other purposes, the application further proposes an electric gas stove, which comprises the furnace head.

[0017] The implementation of the embodiment of the application will have the following beneficial effects:

[0018] After the above circuit board structure is adopted, the plasma needle connected to the first pinhole and the third pinhole is connected to one pole of the power supply through the first conductive ring, the plasma needle connected to the second pinhole and the fourth pinhole is connected to the other pole of the power supply through the second conductive ring, and the plasma flame is generated between the plasma needle connected to the positive pole and the plasma needle connected to the negative pole. During cooking, the plasma flame is stable, and even if the pot is taken up, the plasma flame will not disappear. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0020] wherein:

[0021] Figure 1 a structural schematic diagram of one embodiment of the circuit board structure proposed by the present application;

[0022] Figure 2 a structural bottom view schematic diagram of the circuit board body in another embodiment of the circuit board structure proposed by the present application;

[0023] Figure 3 a structural bottom view schematic diagram of the circuit board body in another embodiment of the circuit board structure proposed by the present application;

[0024] Figure 4 a structural schematic diagram of another embodiment of the circuit board structure proposed by the present application after being connected with electrodes;

[0025] Figure 5 a structural schematic diagram of one embodiment of the circuit board structure proposed by the present application after being connected with electrodes;

[0026] Figure 6 a structural schematic diagram of one embodiment of the burner proposed by the present application;

[0027] Figure 7 a structural schematic diagram of another embodiment of the burner proposed by the present application.

[0028] Reference signs:

[0029] 1, circuit board body; 11, outer ring circuit board; 111, first pin hole; 12, middle ring circuit board; 121, second pin hole; 13, inner ring circuit board; 131, third pin hole; 132, fourth pin hole; 133, electrically connecting piece; 14, conductive piece; 141, electrically connecting point; 15, hollow structure; 16, conductive rod;

[0030] 2, first conductive ring;

[0031] 3, second conductive ring;

[0032] 4, capacitor assembly. DETAILED DESCRIPTION

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The terms "comprises", "comprising", "includes", "including", "has", "having" and their variants are intended to be inclusive and allow for items not only containing something but also consisting of something. The terms "first", "second", and the like, do not denote any order, quantity, or importance, but rather are used to identify one object from another.

[0034] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the described embodiments are merely examples from a whole class of comparable embodiments which those skilled in the art will readily appreciate.

[0035] In order to make the technical personnel in the art better understand the scheme of the application, the technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings.

[0036] With reference to Figures 1 to 7 The application provides a circuit board structure for an electric gas stove, which comprises a circuit board body 1.

[0037] The circuit board body 1 is provided with a first conductive ring 2 and a second conductive ring 3, and the first conductive ring 2 and the second conductive ring 3 divide the circuit board body 1 into an outer ring circuit board 11, a middle ring circuit board 12 and an inner ring circuit board 13.

[0038] The first conductive ring 2 is used for electrically connecting with one pole of a power supply, and the second conductive ring 3 is used for electrically connecting with another pole of the power supply.

[0039] The outer ring circuit board 11 is provided with a plurality of first pin holes 111 arranged in a circumferential direction, any first pin hole 111 is electrically connected with the first conductive ring 2, the middle ring circuit board 12 is provided with a plurality of second pin holes 121 arranged in a circumferential direction, any second pin hole 121 is electrically connected with the second conductive ring 3, and the inner ring circuit board 13 is provided with a plurality of third pin holes 131 and a plurality of fourth pin holes 132, the third pin holes 131 and the fourth pin holes 132 are arranged at intervals, any third pin hole 131 is electrically connected with the first conductive ring 2, and any fourth pin hole 132 is electrically connected with the second conductive ring 3.

[0040] In the embodiment, the electric stove burner is internally provided with a plurality of plasma needles, one end of the plasma needle is inserted into the circuit board main body 1 through the needle head, and the other end is connected to the plasma head. After the electric stove is connected to the power supply, a part of the plasma needles are connected to the positive pole of the power supply, and the other part of the plasma needles are connected to the negative pole of the power supply. The plasma needles connected to the positive pole and the plasma needles connected to the negative pole are arranged adjacent to each other. The air between the two plasma heads is ionized to generate a plasma flame, and a high temperature similar to a flame is generated. The user can use the plasma flame for cooking.

[0041] The overall structure of the circuit board is a circular sheet. The first conductive ring 2 is electrically connected to one pole of the power supply, and the second conductive ring 3 is electrically connected to the other pole of the power supply. The first conductive ring 2 and the second conductive ring 3 are both made of metal materials with good conductivity, such as silver, aluminum, or copper. After being made into metal foils, they are attached to the circuit board main body 1.

[0042] After the electric stove is connected to the power supply, the positive pole is connected to the first conductive ring 2. The first needle hole 111 and the third needle hole 131 are both electrically connected to the first conductive ring 2. The plasma needles inserted into the first needle hole 111 and the third needle hole 131 are connected to the positive pole. The negative pole is connected to the second conductive ring 3. The second needle hole 121 and the fourth needle hole 132 are both electrically connected to the second conductive ring 3. The plasma needles inserted into the second needle hole 121 and the fourth needle hole 132 are connected to the negative pole. Since the first needle hole 111 is located on the outer ring circuit board 11, and the second needle hole 121 is located on the middle ring circuit board 12, the distance between the plasma needles inserted into the first needle hole 111 and the plasma needles inserted into the second needle hole 121 is small. The former is connected to the positive pole of the power supply, and the latter is connected to the negative pole of the power supply. The air between them is ionized and generates a plasma flame.

[0043] The third needle hole 131 and the fourth needle hole 132 are both located on the inner ring circuit board 13. Since the cross-sectional area of the inner ring circuit board 13 is small, the third needle hole 131 and the fourth needle hole 132 can be arranged adjacent to each other, or as shown, two third needle holes 131 can be arranged between two fourth needle holes 132. Figure 1 The third needle hole 131 can be connected to the first conductive ring 2 through a wire, or an electrical connection end can be provided on the inner ring circuit board 13 to connect to the positive pole of the power supply. The fourth needle hole 132 is electrically connected to the second conductive ring 3, thereby being connected to the negative pole of the power supply. Obviously, connecting the first conductive ring 2 and the electrical connection end to the negative pole of the power supply, and connecting the second conductive ring 3 to the positive pole of the power supply, can also achieve the technical solution and generate a stable plasma flame.

[0044] Since the circuit board body 1 is connected with multiple plasma needles, each plasma needle is connected with the circuit board body 1 through a needle hole, the outer ring circuit board 11, the middle ring circuit board 12 and the inner ring circuit board 13 are all circumferentially distributed with needle holes, the multiple first needle holes 111 are arranged in a circle, therefore, the plasma needles connected to the first needle holes 111 are also arranged in a circle, similarly, the plasma needles connected to the second needle holes 121 are also distributed in a circle, compared with linear distribution, this arrangement can accommodate more plasma needles on the circuit board, and the maximum power that the electric gas stove can reach is improved.

[0045] In one embodiment, the circuit board structure further comprises multiple capacitor components 4, any first needle hole 111 and the first conductive ring 2 are electrically connected through a capacitor component 4, any second needle hole 121 and the second conductive ring 3 are electrically connected through a capacitor component 4, any third needle hole 131 and the first conductive ring 2 are electrically connected through a capacitor component 4, and any fourth needle hole 132 and the second conductive ring 3 are electrically connected through a capacitor component 4.

[0046] In this embodiment, by arranging multiple capacitor components 4, the capacitor components 4 can stabilize the voltage during operation, so that the plasma head works more stably and the heating is more stable.

[0047] The first conductive ring 2 is circumferentially provided with multiple first conductive ends, the second conductive ring 3 is also circumferentially provided with multiple second conductive ends, one end of the capacitor component 4 located on the outer ring circuit board 11 is electrically connected with the first needle hole 111, and the other end is electrically connected with the first conductive end; one end of the capacitor component 4 located on the middle ring circuit board 12 is electrically connected with the second needle hole 121, and the other end is electrically connected with the second conductive end; one end of a part of the capacitor components 4 located on the inner ring circuit board 13 is electrically connected with the third needle hole 131, and the other end is connected to the first conductive ring 2 through a wire, or directly connected to one pole of the power supply through a wire, one end of another part of the capacitor components 4 located on the inner ring circuit board 13 is electrically connected with the fourth needle hole 132, and the other end is connected to the second conductive end.

[0048] In one embodiment, the capacitor components 4 are all straight insertion capacitors.

[0049] In this embodiment, as shown in Figures 2 to 4 the capacitor components 4 are all straight insertion capacitors, one end of each straight insertion capacitor is connected to a needle hole through a wire, and the other end is connected to a conductive ring through a wire. The straight insertion capacitors are fixed on the bottom of the stove head through hot melt glue, and the hot melt glue can also play a heat dissipation role to prevent the capacitor components 4 from being damaged due to high temperature.

[0050] In one embodiment, a conductive sheet 14 is connected to any of the first pinhole 111, the second pinhole 121, the third pinhole 131 and the fourth pinhole 132, and an electrical connection point 141 is arranged on the conductive sheet 14, and the capacitor assembly 4 is electrically connected to the pinhole through the electrical connection point 141.

[0051] In the embodiment, since the straight insertion capacitor cannot be conducted through the metal wiring on the circuit board like the patch capacitor, the straight insertion capacitor is connected to the power supply through the lead wires at two ends, and the conductive sheet 14 is fixed on the circuit board, and the conductive sheet 14 is provided with an opening with the same size as the first pinhole 111, the second pinhole 121, the third pinhole 131 and the fourth pinhole 132, so that one end of the straight insertion capacitor can be electrically connected to the plasma needle through the electrical connection point 141.

[0052] In one embodiment, the capacitor assembly 4 is composed of one patch capacitor or a plurality of patch capacitors connected in series.

[0053] In the embodiment, the patch capacitor has a small volume, and the plurality of patch capacitors are electrically connected to each other through the metal wiring on the circuit board to form a capacitor assembly 4, and the electrical connection between the capacitor assembly 4 and the plasma needle and the electrical connection between the capacitor assembly 4 and the conductive end are both achieved through the metal wiring. When the capacitor assembly 4 is a patch capacitor, the inner ring circuit board 13 is provided with an electrical connection end directly connected to one pole of the power supply, and the capacitor assembly 4 on the inner ring circuit board 13 can be electrically connected to one pole of the power supply through the electrical connection end.

[0054] In one embodiment, the circuit board body 1 is provided with a plurality of hollow structures 15, and the patch capacitors are arranged on the hollow structures 15.

[0055] In the embodiment, the patch capacitors are arranged on the hollow structures 15, so that after the circuit board is installed on the furnace head, the hot melt adhesive can cover each patch capacitor through the hollow structure 15, increase the contact area between the hot melt adhesive and the patch capacitor, and make the heat dissipation effect better. Specifically, during the working process of the circuit board, the temperature of the capacitor assembly 4 rises, and after the hot melt adhesive is arranged, since the hot melt adhesive is a phase change material, when the temperature of the capacitor assembly 4 rises, the hot melt adhesive absorbs the heat generated by the capacitor assembly 4 to change from solid state to molten state. This process is an endothermic process, which ensures that the temperature of the capacitor assembly 4 will not be too high. Since the patch capacitor has a small volume, although the temperature may be high, the specific heat capacity of the hot melt adhesive is large, and the absolute value of the heat generated by the patch capacitor is not large relative to the hot melt adhesive, so the hot melt adhesive far away from the capacitor assembly 4 is still in solid state and will not melt completely; after the power supply is turned off, the temperature of the capacitor assembly 4 decreases, and the temperature of the hot melt adhesive gradually returns to room temperature, and the hot melt adhesive returns to solid state.

[0056] In addition, the volume of the directly-inserted capacitor is large, and in order to realize stable fixation of the circuit board and timely heat dissipation, the volume of the hot melt adhesive required is more, and the cost is more expensive than that of the surface-mounted capacitor. In view of cost saving, the surface-mounted capacitor can be used to replace the directly-inserted capacitor. Taking the cost of a common burner as an example, when the surface-mounted capacitor is used, the cost can be saved by about 60 yuan in the amount of hot melt adhesive used compared with the directly-inserted capacitor, and the economic benefit is significant.

[0057] In an embodiment, the inner ring circuit board 13 is connected with an electric connecting sheet 133, and the plurality of third pin holes 131 are electrically connected with the electric connecting sheet 133. The electric connecting sheet 133 is electrically connected with the first conductive ring 2.

[0058] In an embodiment, the circuit board body 1 is further connected with a conductive rod 16, and the electric connecting sheet 133 is provided with at least one connecting end. Any connecting end is electrically connected with the first conductive ring 2 through the conductive rod 16.

[0059] In the embodiment, the conductive rod 16 can be provided with one or more. When only one conductive rod 16 is provided, one end of the conductive rod 16 is connected to the electric connecting sheet 133, and the other end is connected to the first conductive ring 2. After the power is turned on, the current is conducted from the first conductive ring 2 to the conductive rod 16, and then conducted to the electric connecting sheet 133 through the conductive rod 16, and then conducted to the third pin hole 131 through the capacitor assembly 4. When a plurality of conductive rods 16 are provided, one end of any conductive rod 16 is connected to the connecting end of the electric connecting sheet 133, and the other end is connected to the first conductive ring 2.

[0060] Because the specifications and sizes of the electric gas stove are different, the number of the plasma needles is different, and the size of the circuit board structure is different, the circuit board body 1 is provided in a circular shape, and the included angle between adjacent plasma needles connected to the outer ring circuit board 11 and the included angle between adjacent plasma needles connected to the middle ring circuit board 12 can be equal. When the size of the circuit board body 1 is limited, the number of the plasma needles that can be accommodated on the inner ring circuit board 13 can be adjusted according to the specifications of the electric gas stove and the user's demand, that is, the number of the connecting ends on the electric connecting sheet 133 is adjusted.

[0061] With reference to Figures 6 to 7 The application also provides a burner, which comprises the circuit board structure.

[0062] In the embodiment, the burner of the electric gas stove comprises a shell, the circuit board structure, the plasma needle, and the plasma head. The burner further comprises a heat dissipation cavity and a heat dissipation assembly between the plasma head and the circuit board structure, which can reduce the influence of the high temperature of the plasma head on other structures of the electric gas stove.

[0063] The application also provides an electric gas stove, which comprises the burner.

[0064] Obviously, the above-described embodiments are only some embodiments but not all the embodiments of the present application, the preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent replacements to some technical features therein. Any equivalent structure made by using the content of the specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A circuit board structure for an electric gas burner, characterized in that The circuit board structure comprises a circuit board body; The circuit board body is provided with a first conductive ring and a second conductive ring, both of which are silver, aluminum or copper metal foils attached to the surface of the circuit board body to divide the circuit board body into an outer ring circuit board, a middle ring circuit board and an inner ring circuit board; The first conductive ring is used for electrical connection with one pole of a power supply, and the second conductive ring is used for electrical connection with another pole of the power supply; The outer ring circuit board is provided with a plurality of first pin holes arranged in a circumferential direction, any of the first pin holes being electrically connected with the first conductive ring, the middle ring circuit board is provided with a plurality of second pin holes arranged in a circumferential direction, any of the second pin holes being electrically connected with the second conductive ring, the inner ring circuit board is provided with a plurality of third pin holes and a plurality of fourth pin holes, the third pin holes and the fourth pin holes being arranged at intervals, any of the third pin holes being electrically connected with the first conductive ring, and any of the fourth pin holes being electrically connected with the second conductive ring; The inner ring circuit board is connected with an electric connecting piece, the plurality of third pin holes are electrically connected with the electric connecting piece, the circuit board body is further connected with a conductive rod, the electric connecting piece is provided with at least one connecting end, and any of the connecting ends is electrically connected with the first conductive ring through the conductive rod.

2. A circuit board structure according to claim 1, wherein The circuit board structure further comprises a plurality of capacitor assemblies, any of the first pin holes and the first conductive ring being electrically connected through a capacitor assembly, any of the second pin holes and the second conductive ring being electrically connected through a capacitor assembly, any of the third pin holes and the first conductive ring being electrically connected through a capacitor assembly, and any of the fourth pin holes and the second conductive ring being electrically connected through a capacitor assembly.

3. A circuit board structure according to claim 2, wherein The capacitor assemblies are all straight insertion capacitors.

4. A circuit board structure according to claim 3, wherein Any of the first pin holes, the second pin holes, the third pin holes and the fourth pin holes is connected with a conductive piece, the conductive piece is provided with an electric connecting point, and the capacitor assembly is electrically connected with the pin hole through the electric connecting point.

5. The circuit board structure of claim 2, wherein The capacitor assembly is composed of one patch capacitor or a plurality of patch capacitors connected in series.

6. A circuit board structure according to claim 5, wherein The circuit board body is provided with a plurality of hollow structures, and the patch capacitors are installed on the hollow structures.

7. A burner tip, characterized by The burner head comprises the circuit board structure of any of claims 1-6.

8. An electric gas burner, characterized in that The electric gas stove comprises the burner head of claim 7.

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