A burner

Abstract

The present invention discloses a burner, which comprises an air distribution plate and a combustion plate assembly. The air distribution plate is provided with through holes. Further included are a housing, an insulator and an ignition electrode. A combustion chamber is defined at the upper end of the housing. The combustion chamber is provided with fire holes, air inlet holes for air to enter and openings for gas to enter. One end of the insulator is embedded into the housing. The ignition electrode is arranged in the combustion chamber. The housing is installed at the through holes and its upper end protrudes from the through holes. It effectively integrates an extremely small fire combustion structure and an ignition structure. The structure is simple and compact. It can not only provide stable extremely small fire, but also achieve the purposes of reliable ignition and sensitive small fire induction. In addition, the ignition electrode is hidden in the combustion chamber, which not only has a beautiful appearance, but also is beneficial to extending the service life of the ignition electrode.

Description

Technical Field

[0001] The present invention relates to the technical field of burners, and particularly to a burner integrating a very small fire and an ignition structure. Background Art

[0002] With the increasing popularity of intelligent cooking, burners are not only required to have constant temperature and heat preservation functions, but also have higher and higher requirements for very small fires. In addition, due to ignition and safety requirements, ignition and flame sensing are standard configurations, but it is relatively difficult to have a concealed design. Variations of the ignition needle and poor contact of the ground electrode will reduce the reliability of ignition. To solve these problems, a burner integrating a very small fire and an ignition needle is proposed. Summary of the Invention

[0003] The present invention aims to solve at least one of the problems existing in the related prior art to a certain extent. For this purpose, the present invention provides a burner that integrates a very small fire and an ignition structure, and protects the integrated structure of the very small fire and ignition, so that the very small fire burns stably and is not easily extinguished, and protects the ignition electrode from the influence of surrounding wind, etc., improving the ignition reliability.

[0004] According to the above-provided burner, it is realized through the following technical solutions:

[0005] A burner includes a gas distribution plate and a combustion plate assembly. The gas distribution plate is provided with through holes, and the combustion plate assembly is arranged above the gas distribution plate and is provided with openings corresponding to the through holes. It further includes a housing, an insulator at least partially arranged in the housing, and an ignition electrode. A combustion chamber is formed at the upper end of the housing. The combustion chamber is provided with fire holes, air inlet holes for air to enter, and openings for gas to enter. The ignition electrode is arranged in the combustion chamber. The housing is installed at the through holes and its upper end protrudes from the through holes.

[0006] In some embodiments, the combustion chamber is formed by surrounding the housing and the top of the insulator. The fire holes are arranged at the top of the combustion chamber, and the air inlet holes are arranged on the side wall of the combustion chamber and are close to the insulator.

[0007] In some embodiments, a gas passage for gas to pass through is provided in the insulator, and the gas passage is communicated with the opening.

[0008] In some embodiments, it further includes a metal pipe for transporting gas. One end of the metal pipe is inserted into the gas passage, and the other end is used to connect to a gas source.

[0009] In some embodiments, the upper end of the metal pipe sequentially passes through the gas passage, the opening and extends into the combustion chamber, and one end of the ignition electrode faces the upper end of the metal pipe.

[0010] In some embodiments, it further includes an electrode connector, and the electrode connector is connected to the ignition electrode.

[0011] In some embodiments, the housing is made of metal, and a through hole communicating with the combustion chamber is provided on the side wall of the housing. One end of the ignition electrode is connected to the lower edge of the through hole, and the electrode connector is arranged at the lower end of the side wall of the housing and protrudes outward.

[0012] In some embodiments, the housing is integrally formed with the ignition electrode and the electrode connector respectively, and the ignition electrode and the through hole enclose a "V" shape.

[0013] In some embodiments, the through hole is provided at the center of the gas distribution plate. Correspondingly, the opening is provided at the center of the combustion plate assembly so that the combustion plate assembly has an annular structure.

[0014] In some embodiments, it further includes a protective cover, and the protective cover is arranged above the housing and can cover the top of the housing.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. The burner of the present invention effectively integrates the extremely small fire combustion structure and the ignition structure. It has a simple and compact structure. It can not only provide a stable extremely small fire, but also achieve the purposes of reliable ignition and sensitive small fire induction.

[0017] 2. By hiding the ignition electrode in the combustion chamber, not only is the appearance beautiful, but also the ignition electrode can be protected from the influence of surrounding wind, water spray, etc., which is beneficial to extending the service life of the ignition electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the burner in an embodiment of the present invention;

[0019] Figure 2 is Figure 1 a partial enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following embodiments are used to illustrate the present invention, but the present invention is not limited by these embodiments. Modifying the specific implementation manners of the present invention or equivalently replacing some technical features without departing from the spirit of the present invention scheme shall all be covered within the scope of the technical solution claimed by the present invention.

[0021] Such as Figure 1-2As shown, a burner of this embodiment includes a gas distribution plate 1 and an annular combustion plate assembly 2, the gas distribution plate 1 is provided with a through hole 11, the combustion plate assembly 2 is arranged above the gas distribution plate 1 and is provided with an opening corresponding to the through hole 11, wherein it also includes a shell 3, an insulator 4 at least partially arranged in the shell 3, and an ignition electrode 5, a combustion chamber 30 is formed at the upper end of the shell 3, the combustion chamber 30 is provided with a fire hole 301, an air inlet hole 302 for air to enter and an opening for gas to enter (not shown in the figure), the ignition electrode 5 is arranged in the combustion chamber 30, the shell 3 is installed at the through hole 11 and its upper end protrudes from the through hole 11. In this embodiment, the through hole 11 is arranged at the center of the gas distribution plate 1, and the opening is correspondingly arranged at the center of the combustion plate assembly 2 so that the combustion plate assembly 2 has a ring structure. The shell 3 is preferably made of metal. The shell 3, the insulator 4 and the ignition electrode 5 together constitute an ignition structure. The combustion chamber 30, the fire hole 301, the air inlet hole 302 and the opening for the gas to enter together constitute a very small fire combustion structure for providing stable combustion and not easy to extinguish.

[0022] A burner of this embodiment effectively integrates the very small fire combustion structure and the ignition structure, has a simple and compact structure, can not only provide a stable, not easy to extinguish very small fire, but also can achieve the purpose of reliable ignition, sensitive small fire sensing, etc. In addition, hiding the ignition electrode 5 in the combustion chamber 30, that is, the shell 3, not only has a beautiful appearance, but also can protect the ignition electrode 5 from the surrounding wind, water, etc., which is conducive to extending the service life of the ignition electrode 5.

[0023] Specifically, the upper end of the insulator 4 is embedded in the shell 3 and abuts against the inner wall of the shell 3 to prevent gas leakage between the shell 3 and the insulator 4. The combustion chamber 30 is formed by the shell 3 and the top of the insulator 4. The number of the fire holes 301 and the air inlet holes 302 are both several, and the several fire holes 301 are arranged at the top of the combustion chamber 30, and the several air inlet holes 302 are circumferentially arranged on the side wall of the combustion chamber 30 and close to the insulator 4 to ensure that the gas and air are evenly mixed, which is conducive to improving the completeness of the combustion of the very small fire.

[0024] Furthermore, a metal tube 6 for conveying gas is included. A gas channel for gas to pass through and connected to the opening is provided in the insulator 4. One end of the metal tube 6 is inserted into the gas channel and the other end is used to connect to the gas source. Thus, the provision of the metal tube 6 not only realizes the delivery of gas to the combustion chamber 30 through the gas channel, but also realizes the grounding of the ignition electrode 5, which is beneficial to improve the safety of the ignition structure. Preferably, the gas channel is provided at the center of the insulator 4 along the length direction of the insulator 4.

[0025] Preferably, the upper end of the metal tube 6 sequentially passes through the gas passage, the opening, and extends into the combustion chamber 30. One end of the ignition electrode 5 is connected to the side wall of the combustion chamber 30, i.e., the inner wall of the housing 3, and the other end faces the upper end of the metal tube 6. In this way, it can be ensured that the ignition electrode 5 breaks down the air at the gas concentration point and discharges to the metal tube 5, and the electric spark ignites the gas to form a very small flame burning in the combustion chamber 30. The ignition is efficient and reliable. At the same time, the burning stability of the very small flame is high, the windproof effect is good, and the problem that the very small flame is prone to extinguish is solved.

[0026] Furthermore, a through hole 303 communicating with the combustion chamber 30 is provided on the side wall of the housing 3 to further increase the air intake into the combustion chamber 30, which is beneficial to increasing the contact area between the ignition electrode 5 and the air, improving the ignition reliability, and enabling the very small flame to burn more fully. One end of the ignition electrode 5 is connected to the lower edge of the through hole 303, and the other end is inclined upward towards the metal tube 5, so that the ignition electrode 5 and the through hole 303 enclose a "V" shape. In this way, it can be ensured that the ignition electrode 5 ignites reliably and efficiently at the gas concentration point. At the same time, the ignition electrode 5 also plays a role in limiting the installation depth of the insulator 4.

[0027] Furthermore, an electrode connector 7 protruding outward is provided at the lower end of the side wall of the housing 3 near the ignition electrode 5 for connecting to the high-voltage ignition output end of the igniter. Preferably, the housing 3 is integrally formed with the ignition electrode 5 and the electrode connector 7 respectively, so that the ignition electrode 5 and the electrode connector 7 are reliably connected to the housing 3 and are easy to process and manufacture. In this embodiment, the electrode connector 7, the housing 3, the ignition electrode 5, the flame, and the metal tube 5 together constitute a flame detection circuit. The connection of this flame detection circuit is simple and reliable, the flame detection sensitivity is high, and it can be used as a detection component for flameout protection.

[0028] Furthermore, a protective cover 8 is further included. The protective cover 8 is arranged above the housing 3 and there is a gap between the protective cover 8 and the top of the housing 3. The protective cover 8 can simultaneously cover the top of the housing 3. In this way, the very small flame combustion structure and the ignition structure are hidden and protected, making the overall appearance of the burner beautiful and conducive to extending the service life of the integrated very small flame combustion structure and ignition structure. Preferably, the protective cover 8 is made of a metal material, and the length of the protective cover 8 is greater than the diameter of the through hole 11, so that the protective cover 8 plays a role in guiding the fire.

[0029] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A burner, comprising a gas distribution plate (1) and a combustion plate assembly (2). The gas distribution plate (1) is provided with a through hole (11), and the combustion plate assembly (2) is arranged above the gas distribution plate (1) and is provided with an opening corresponding to the through hole (11). Characterized in that, It further comprises a housing (3), an insulator (4) at least partially arranged inside the housing (3), and an ignition electrode (5). A combustion chamber (30) is formed at the upper end of the housing (3). The combustion chamber (30) is provided with flame holes (301), an air inlet hole (302) for air to enter, and an opening for gas to enter. The ignition electrode (5) is arranged inside the combustion chamber (30). The housing (3) is installed at the through hole (11) and its upper end protrudes from the through hole (11). The upper end of the insulator (4) is embedded into the housing (3) and abuts against the inner wall of the housing (3). The combustion chamber (30) is formed by enclosing the housing (3) and the top of the insulator (4). A gas passage for gas to pass through is provided inside the insulator (4), and the gas passage is communicated with the opening.

2. A burner according to claim 1, Characterized in that, The flame holes (301) are arranged at the top of the combustion chamber (30), and the air inlet hole (302) is arranged on the side wall of the combustion chamber (30) and is close to the insulator (4).

3. A burner according to claim 1, Characterized in that, It further comprises a metal pipe (6) for conveying gas. One end of the metal pipe (6) is inserted into the gas passage, and the other end is used for connecting to a gas source.

4. A burner according to claim 3, Characterized in that, The upper end of the metal pipe (6) sequentially passes through the gas passage, the opening and extends into the combustion chamber (30), and one end of the ignition electrode (5) faces the upper end of the metal pipe (6).

5. A burner according to claim 1, Characterized in that, It further comprises an electrode connector (7), and the electrode connector (7) is connected to the ignition electrode (5).

6. A burner according to claim 5, Characterized in that, The housing (3) is made of metal. A through hole (303) communicated with the combustion chamber (30) is provided on the side wall of the housing (3). One end of the ignition electrode (5) is connected to the lower edge of the through hole (303), and the electrode connector (7) is arranged at the lower end of the side wall of the housing (3) and protrudes outwards.

7. A burner according to claim 6, Characterized in that, The housing (3) is integrally formed with the ignition electrode (5) and the electrode connector (7) respectively. The ignition electrode (5) and the through hole (303) enclose a "V" shape.

8. A burner according to claim 1, Characterized in that, The through hole (11) is arranged at the center of the gas distribution plate (1). Correspondingly, the opening is arranged at the center of the combustion plate assembly (2) so that the combustion plate assembly (2) has an annular structure.

9. A burner according to any one of claims 1-8, characterized in that , it further includes a protective cover (8), and the protective cover (8) is arranged above the housing (3) and can cover the top of the housing (3).

Images