WO2021017866A1

WO2021017866A1 - Anti-arc electric flame stove

Info

Publication number: WO2021017866A1
Application number: PCT/CN2020/102392
Authority: WO
Inventors: 卢驭龙
Original assignee: 卢驭龙
Priority date: 2019-07-26
Filing date: 2020-07-16
Publication date: 2021-02-04
Also published as: CN210568645U

Abstract

An anti-arc electric flame stove, comprising: a case (1), PCBAs (2) which are provided in the case (1), transformers (3) which are provided in the case (1) and are electrically connected to the PCBAs (2), and burners (4) which are mounted on the case (1) and are electrically connected to the transformers (3). The case (1) is an insulating box body, and insulating partitions (121) are provided between the transformers (3) and the PCBAs (2). The insulating box body (1) may prevent the production of high voltage arcs between high voltage areas, which are formed by high voltages generated by the transformers (3), and an inner wall of the case (1). The insulating partitions (121) are provided between the transformers (3) and the PCBAs (2) so that high pressure arcs will not be produced between high pressure areas, which are formed by high voltages generated by the transformers (3), and the PCBAs (2).

Description

Pull-proof arc electric flame stove

This application claims the priority of the Chinese patent application filed at the Chinese Patent Office on July 26, 2019, with the application number 201921202043.2 and the invention title "Anti-pulling arc electric flame stove", the entire content of which is incorporated into this application by reference in.

Technical field

The application relates to the field of electric heating equipment, in particular to an anti-pull arc electric flame stove.

Background technique

The principle of the electric flame stove is to generate an electric flame by high voltage. Specifically, the transformer provides high voltage to the ion head and then generates an electric flame at the ion head. The inventor found that when the electric flame stove is in use, a high-voltage arc is easily generated inside the cabinet ( In electricity, when the voltage between two conductors penetrates the air layer to form an arc, the air will generate a large amount of electrons after the arc is formed, and the conductivity will increase rapidly. Even if the distance between the two conductors continues to increase, the arc cannot be extinguished. The phenomenon is to pull the arc).

technical problem

One of the objectives of the embodiments of the present application is to provide an anti-pulling arc electric flame stove, aiming to solve the problem of high-voltage arcing easily generated in the cabinet of the electric flame stove.

Technical solutions

In order to solve the above technical problems, the technical solutions adopted in the embodiments of this application are:

An anti-pull arc electric flame stove is provided, which includes a chassis, and a Printed Circuit Board (PCBA) set in the chassis. +Assembly) assembly, a transformer arranged in the chassis and electrically connected with the PCBA assembly, and a furnace head installed on the chassis and electrically connected with the transformer; the chassis is an insulating box; the An insulating partition is arranged between the transformer and the PCBA assembly.

In one embodiment, the chassis includes a box bottom shell and a box surface shell detachably connected to the box bottom shell, the box bottom shell and the box surface shell enclose a containing cavity, the PCBA assembly and the The transformers are all arranged in the containing cavity.

In one embodiment, the PCBA assembly and the transformer are both fixedly connected to the box surface shell.

In one embodiment, a gap is formed between the PCBA assembly and the transformer and the bottom of the bottom case.

In an embodiment, the insulating partition is formed by extending the box surface shell toward the bottom of the box bottom shell.

In one embodiment, the box bottom shell is clamped with the box face shell; the box face shell is provided with a snapping protrusion, and the box bottom shell is provided with a fitting protrusion Card slot.

In one embodiment, a first connecting post is provided on the box face shell, and a first connecting block is provided on the transformer; the first connecting post is provided with a first threaded hole, and the first connecting block is provided with There is a first through hole; a first screw is arranged between the first connecting block and the first connecting column, and the first screw penetrates the first through hole and is threadedly connected with the first threaded hole.

In one embodiment, a second connecting post is provided on the box surface shell, and a second connecting block is provided on the PCBA assembly; the second connecting post is provided with a second threaded hole, and the second connecting block A second through hole is opened; a second screw is provided between the second connecting block and the second connecting column, and the second screw penetrates the second through hole and is threadedly connected with the second threaded hole .

In one embodiment, the insulating partition is a plastic plate.

In one embodiment, the chassis is a plastic box.

Beneficial effect

The beneficial effect of the anti-pull arc electric flame stove provided by the embodiments of the present application is that the cabinet is selected as an insulating box, which can avoid the high-voltage arc generated between the high-voltage area formed by the transformer and the inner wall of the cabinet, and can also avoid the transformer and the inner wall of the cabinet. A high-voltage arc is generated between the high-voltage area at the connection of the furnace head and the inner wall of the cabinet. At the same time, there is an insulating partition between the transformer and the PCBA assembly, so there is no high-voltage arc between the high-voltage area formed by the high voltage generated by the transformer and the PCBA assembly, which effectively avoids the high-voltage arc in the cabinet of the electric flame stove. The phenomenon has improved the safety of the electric flame stove.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only for the present application. For some embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of the overall structure of an anti-pull arc electric flame stove in an embodiment of the application;

Figure 2 is a cross-sectional view along line A-A in Figure 1;

Figure 3 is a partial enlarged view of B in Figure 2;

In the picture:

1. Chassis; 11. Box bottom shell; 12. Box face shell; 121. Insulating partition plate; 122. The first connecting column; 123. The second connecting column; 13. The containing cavity;

2. PCBA assembly; 21. The second connection block;

3. Transformer; 31. The first connecting block; 4. Furnace head.

Embodiments of the invention

In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and are not used to limit the application.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply the pointed device Or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "multiple" means two or more than two, unless otherwise specifically defined.

The implementation of this application will be described in detail below in conjunction with specific embodiments.

As shown in Figures 1 to 3, an embodiment of the present application proposes an anti-pull arc electric flame stove, which includes a chassis 1, a PCBA (Printed Circuit Board) set in the chassis 1. +Assembly) components, a transformer 3 installed in the chassis 1 and electrically connected to the PCBA component 2, and a furnace head 4 installed on the chassis 1 and electrically connected to the transformer 3; chassis 1 is an insulating box; transformer 3 and PCBA components An insulating partition 121 is provided between 2.

In the embodiment of the present application, the case 1 is selected as an insulating case, which can avoid the high-voltage arc generated between the high voltage area formed by the high voltage generated by the transformer 3 and the inner wall of the case 1, and can also avoid the connection between the transformer 3 and the furnace head 4 A high-voltage arc is generated between the high-voltage area and the inner wall of the chassis 1. At the same time, an insulating partition 121 is provided between the transformer 3 and the PCBA assembly 2, so there is no high voltage arc between the high voltage area formed by the high voltage generated by the transformer 3 and the PCBA assembly 2, thereby effectively avoiding the cabinet of the electric flame stove. 1 The phenomenon of high-voltage arc drawn in the interior improves the safety of the electric flame stove.

Please refer to FIG. 2, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, the cabinet 1 includes a box bottom shell 11 and a box surface shell 12 detachably connected to the box bottom shell 11, and the box bottom shell 11 and the box surface The shell 12 encloses to form an accommodating cavity 13, and the PCBA assembly 2 and the transformer 3 are both arranged in the accommodating cavity 13. The case 1 includes a case bottom shell 11 and a case surface shell 12 detachably connected, so that the PCBA assembly 2 and the transformer 3 in the accommodating cavity 13 can be easily disassembled, and assembled, replaced and repaired.

Please refer to FIG. 2, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, the PCBA assembly 2 and the transformer 3 are fixedly connected to the cabinet 12. That is to say, during the assembly process of the electric flame stove, the PCBA assembly 2 and the transformer 3 can be fixedly connected to the cabinet shell 12, and then the PCBA assembly 2, the transformer 3 and the cabinet shell 12 are integrally connected with the cabinet bottom shell 11 to complete The assembly of the electric flame stove can effectively reduce the difficulty of installation and improve the processing efficiency compared with the installation operation in the bottom shell 11 of the box.

Please refer to FIG. 2, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, a gap is formed between the PCBA assembly 2 and the transformer 3 and the bottom of the bottom shell 11 of the box. That is to say, the PCBA assembly 2 and the transformer 3 are both in the "floating" state. When the outside of the electric flame cooker accidentally splashes water into the cabinet 1, the PCBA assembly 2 and the transformer 3 will not come into contact with the water, so as to ensure the electric flame stove in the process of use. safety.

Please refer to FIG. 2, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, the insulating partition 121 is formed by extending the box surface shell 12 toward the bottom of the box bottom shell 11. That is, the insulating partition 121 and the box surface shell 12 are an integral piece, and there is no gap formed by the connection between it and the box surface shell 12, which further ensures that the high voltage area formed by the high voltage generated by the transformer 3 and the PCBA assembly 2 will not generate high voltage. Pull the arc.

Please refer to FIG. 2, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, the box bottom shell 11 and the box surface shell 12 are clamped; the box surface shell 12 is provided with a clamping protrusion, and the box bottom shell 11 is provided with a clamping groove adapted to the clamping protrusion. The box bottom shell 11 and the box face shell 12 are clamped together, which can realize quick disassembly and assembly, and is convenient for assembly and maintenance. Of course, in other embodiments, the box bottom shell 11 and the box face shell 12 can also be connected in a detachable manner such as screw connection, which is not exclusively limited here. Correspondingly, a sealing ring can also be provided between the bottom shell 11 and the top shell 12 to prevent water from entering the cabinet 1 from the surface of the cabinet 1 to further ensure the safety of the electric flame stove.

Please refer to Figures 2 and 3, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, a first connecting post 122 is provided on the box surface shell 12, and a first connecting block 31 is provided on the transformer 3 The first connecting column 122 is provided with a first threaded hole, the first connecting block 31 is provided with a first through hole; the first connecting block 31 and the first connecting column 122 are provided with a first screw, the first screw penetrates the first The through hole is threadedly connected with the first threaded hole.

Please refer to Figures 2 and 3, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, a second connecting post 123 is provided on the box surface shell 12, and a second connecting block is provided on the PCBA assembly 2 21; The second connecting post 123 is provided with a second threaded hole, and the second connecting block 21 is provided with a second through hole; a second screw is provided between the second connecting block 21 and the second connecting post 123, and the second screw penetrates the first Two through holes are threadedly connected with the second threaded hole.

Please refer to FIG. 2 and FIG. 3, as another specific embodiment of the anti-pull arc electric flame stove provided by the present application, the insulating partition 121 is a plastic plate. And it can be a high temperature resistant plastic board.

Please refer to Figures 2 and 3, as another specific implementation of the anti-pull arc electric flame stove provided by the present application, the cabinet 1 is a plastic box. And it can be a high temperature resistant plastic box.

Obviously, the above-mentioned embodiments of the present application are only used to clearly illustrate the examples of the present application, and are not intended to limit the implementation manners of the present application. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. Any modification, equivalent replacement and improvement made within the spirit and principle of this application shall be included in the protection scope of the claims of this application.

Claims

The anti-pull arc electric flame stove is characterized in that it comprises a chassis, a PCBA assembly arranged in the chassis, a transformer arranged in the chassis and electrically connected with the PCBA assembly, and installed on the chassis and connected to The furnace head is electrically connected to the transformer; the chassis is an insulating box; an insulating partition is arranged between the transformer and the PCBA assembly.
The anti-pull arc electric flame stove of claim 1, wherein the cabinet comprises a box bottom shell and a box surface shell detachably connected to the box bottom shell, and the box bottom shell is enclosed with the box surface shell An accommodating cavity is formed, and the PCBA assembly and the transformer are both arranged in the accommodating cavity.
The anti-pull arc electric flame cooker according to claim 2, wherein the PCBA assembly and the transformer are both fixedly connected to the cabinet surface shell.
The anti-pull arc electric flame stove of claim 3, wherein a gap is formed between the PCBA assembly and the transformer and the bottom of the bottom shell of the box.
The anti-pull arc electric flame stove according to claim 3, wherein the insulating partition is formed by extending the box surface shell in a direction close to the bottom of the box bottom shell.
The anti-pull arc electric flame stove according to claim 2, wherein the box bottom shell is clamped with the box surface shell; the box surface shell is provided with a clamping protrusion, and the box bottom shell is A clamping groove adapted to the clamping protrusion is opened.
The anti-pull arc electric flame stove according to any one of claims 2-6, wherein a first connecting column is provided on the box surface shell, and a first connecting block is provided on the transformer; A connecting column is provided with a first threaded hole, and the first connecting block is provided with a first through hole; a first screw is provided between the first connecting block and the first connecting column, and the first screw penetrates The first through hole is threadedly connected with the first threaded hole.
The anti-pull arc electric flame stove according to any one of claims 2-6, wherein a second connecting column is provided on the box surface shell, and a second connecting block is provided on the PCBA assembly; The second connecting column is provided with a second threaded hole, and the second connecting block is provided with a second through hole; a second screw is provided between the second connecting block and the second connecting column, the second screw It penetrates the second through hole and is threadedly connected with the second threaded hole.
The anti-pull arc electric flame stove according to any one of claims 1-6, wherein the insulating partition is a plastic plate.
The anti-pull arc electric flame stove according to any one of claims 1-6, wherein the cabinet is a plastic box.