WO2020047937A1

WO2020047937A1 - Burner and cooker

Info

Publication number: WO2020047937A1
Application number: PCT/CN2018/109357
Authority: WO
Inventors: 林梦; 孙明雪
Original assignee: 佛山市顺德区美的洗涤电器制造有限公司
Priority date: 2018-09-04
Filing date: 2018-10-08
Publication date: 2020-03-12

Abstract

A burner (100) and a cooker. An inner ring gas mixing cavity (50) and an outer ring gas mixing cavity (60) are formed in the burner (100). The burner (100) comprises a bottom cup (10). The bottom cup (10) comprises a main body (11) which is basically in a disk shape, and an inner ring ejection pipe (12) and an outer ring ejection pipe (13) which are formed on the lower side of the main body (11) and respectively communicated with the inner ring gas mixing cavity (50) and the outer ring gas mixing cavity (60). An inner ring ejection pipe inlet (121) is formed on the inner ring ejection pipe (12). An outer ring ejection pipe inlet (131) is formed on the outer ring ejection pipe (13). The inner ring ejection pipe inlet (121) and the outer ring ejection pipe inlet (131) are basically located at the two opposite ends of one diameter (CL1) of the main body (11). In the burner (100) of the cooker, the inner ring ejection pipe inlet (121) and the outer ring ejection pipe inlet (131) are spaced, so that mutual negative pressure interference therebetween can be reduced, ejection performance is improved, and burning is more stable.

Description

Burner and cooking stove

Priority information

This application claims the priority and rights of the patent applications filed with the State Intellectual Property Office of China on September 4, 2018, with patent application numbers of 201811027340.8 and 201821444197.8, and the entire contents of which are hereby incorporated by reference.

Technical field

The present application relates to the field of domestic stoves, and in particular, to a burner and a cooking stove.

Background technique

Existing burners may use multiple ejector tubes to supply different flame rings. However, the ejection tube is provided with a small interval between the intake ports of the ejection tube. A small air inlet gap may cause negative pressure interference when the burner is working, which will affect the ejection performance, have weak wind resistance, and risk of flameout.

Summary of the Invention

Embodiments of the present application provide a burner and a cooking stove.

The burner of the embodiment of the present application is formed with an inner ring gas mixing chamber and an outer ring gas mixing chamber, and the burner includes:

A bottom cup comprising a main body and an inner ring ejection tube and an outer ring ejection tube formed on a lower side of the main body and in communication with the inner ring gas mixing cavity and the outer ring gas mixing cavity, respectively; The inner ring ejection tube is formed with an inner ring ejection tube inlet, the outer ring ejection tube is formed with an outer ring ejection tube inlet, the inner ring ejection tube inlet and the outer ring ejection tube inlet are substantially located at Opposite ends of one diameter of the body.

In the burner of the embodiment of the present application, the inlet of the inner ring ejection tube and the inlet of the outer ring ejection tube are spaced to a great extent, so that the negative pressure interference between them can be reduced, the ejection performance can be improved, and the combustion can be more stable .

The cooking stove according to the embodiment of the present application includes the burner of the above embodiment, the burner is formed with an inner ring gas mixing cavity and an outer ring gas mixing cavity, and the burner includes:

In the burner of the cooking hob according to the embodiment of the present application, the inlet of the inner ring ejection tube and the inlet of the outer ring ejection tube are spaced to a great extent, so that the negative pressure interference between each other can be reduced and the ejection performance can be improved. Burning is more stable.

Additional aspects and advantages of the present application will be given in part in the following description, part of which will become apparent from the following description, or be learned through practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

1 is an exploded perspective view of a burner according to an embodiment of the present application;

2 is a schematic perspective view of a burner according to an embodiment of the present application;

3 is a schematic plan view of a burner according to an embodiment of the present application;

4 is a schematic cross-sectional view of the burner in FIG. 3 along the line IV-IV;

5 is a schematic partial perspective view of a burner implemented in the present application;

6 is a schematic cross-sectional view of the burner in FIG. 3 along the VI-VI line;

FIG. 7 is another perspective view of the burner implemented in the present application.

8 is a schematic plan view of a bottom cup according to an embodiment of the present application;

9 is another schematic plan view of a bottom cup according to an embodiment of the present application;

FIG. 10 is a schematic plan view of a fire splitter according to an embodiment of the present application; FIG.

11 is a schematic cross-sectional view of the fire splitter in FIG. 11 taken along the line XI-XI;

12 is a schematic plan view of an inner fire cover according to an embodiment of the present application;

13 is a schematic cross-sectional view taken along the line XIII-XIII in FIG. 12;

14 is a schematic plan view of an outer fire cover according to an embodiment of the present application;

15 is a schematic cross-sectional view taken along the line XV-XV in FIG. 14.

Description of main component symbols: burner 100, bottom cup 10, main body 11, inner ring ejection tube 12, inner ring ejection tube inlet 121, inner ring ejection tube outlet 122, outer ring ejection tube 13, outer ring ejection Tube inlet 131, outer ring ejection tube outlet 132, bearing surface 111, inner ring air inlet groove 112, inner ring air inlet opening 1121, first predetermined arc length 11211, outer ring air inlet groove 113, outer ring air inlet opening 1131, second predetermined arc length 11311, inner ring mixing chamber 114, inner ring gas outlet opening 1141, third predetermined arc length 11411, outer ring mixing chamber 115, outer ring gas outlet opening 1151, fourth predetermined arc length 11511, inner Ring nozzle holder 14, outer ring nozzle holder 15, flame splitter 20, inner ring chamber 21, inner ring channel 22, outer ring chamber 23, outer ring channel 24, inner fire cover 30, inner ring fire hole 31, inner ring The inner wall 32, the outer fire cover 40, the outer ring fire hole 41, the outer ring inner wall 42, the inner ring gas mixing chamber 50, and the outer ring gas mixing chamber 60.

detailed description

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application.

In the description of this application, it should be understood that the terms "row direction", "column direction", "center", "longitudinal", "transverse", "length", "width", "thickness", "edge" , "Up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", The azimuth or position relationship indicated by "clockwise", "counterclockwise" is based on the azimuth or position relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply the device or element referred to. It must have a specific orientation and be constructed and operated in a specific orientation, so it cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, the meanings of “multiple” and “multiple roots” are two or more than two exponential quantities, unless specifically defined otherwise.

In the description of this application, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense unless explicitly stated and limited otherwise. For example, they may be fixed connections or removable. Connected, or integrated. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless explicitly stated and limited otherwise, the "first" or "under" of the second feature may include the first and second features in direct contact, and may also include the first and second features. Not directly, but through another characteristic contact between them. Moreover, the first feature is "above", "above", and "above" the second feature, including that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature is higher in level than the second feature. The first feature is “below”, “below”, and “below” of the second feature, including the fact that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature is less horizontal than the second feature.

The following disclosure provides many different implementations or examples for implementing different structures of the present application. To simplify the disclosure of this application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the application. Furthermore, the application may repeat reference numerals and / or letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, examples of various specific processes and materials are provided in this application, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

Please refer to FIG. 1 to FIG. 3 together. The burner 100 according to the embodiment of the present application may be used in the cooking range according to the embodiment of the present application, for example, a household gas range (not shown). When in use, the burner 100 can be placed horizontally, installed on a gas stove, and connected to a gas source to burn gas through the burner 100 for cooking.

Please refer to FIGS. 4 to 7 together. The burner 100 according to the embodiment of the present application is formed with an inner ring gas mixing cavity 50 and an outer ring gas mixing cavity 60. During operation, the burner 100 may form an inner ring flame and an outer ring flame. The inner ring mixing chamber 50 and the outer ring mixing chamber 60 supply gas to the inner ring flame and the outer ring flame, respectively. The burner 100 includes a bottom cup 10, which includes a main body 11, an inner ring ejection tube 12, and an outer ring ejection tube 13. The main body 11 is substantially disc-shaped, and the inner ring ejection tube 12 and the outer ring ejection tube 13. It is formed on the lower side of the main body 11 and communicates with the inner ring gas mixing chamber 50 and the outer ring gas mixing chamber 60, respectively. The inner ring ejection tube 12 is formed with an inner ring ejection tube inlet 121, the outer ring ejection tube 13 is formed with an outer ring ejection tube inlet 131, the inner ring ejection tube inlet 121 and the outer ring ejection tube inlet 131 are basically located in the main body The opposite ends of a diameter CL1 of 11.

Generally, existing burners may use multiple ejector tubes to supply different flame rings. However, the installation of the ejection tube has a problem that the interval between the intake ports of the ejection tube is small. A small air inlet gap may cause negative pressure interference when the burner is working, which will affect the ejection performance, have weak wind resistance, and risk of flameout.

In the burner 100 according to the embodiment of the present application, the inner ring ejection tube inlet 121 and the outer ring ejection tube inlet 131 are largely spaced apart. In this way, the negative pressure interference between each other can be reduced, the ejection performance is improved, and the combustion is more stable.

It can be understood that when the burner 100 is working, the inner ring gas mixing chamber 50 supplies the inner ring flame gas, the outer ring gas mixing chamber 60 supplies the outer ring flame gas, and the inner ring ejection tube 12 is the inner ring gas mixing chamber. 50 gas supply, and the outer ring ejection tube 13 supplies gas to the outer ring gas mixing chamber 60. In the embodiment of the present application, the bottom cup 10 may be made of metal materials such as cast iron, aluminum, and copper, which may be integrally formed by a mold or formed by machining.

Please refer to FIG. 8 and FIG. 9 together. In some embodiments, the inner ring ejection tube 12 and the outer ring ejection tube 13 are disposed substantially horizontally and are located on both sides of the diameter CL1 of the main body 11. The inner ring ejection tube 12 and The axis of the outer ring ejection tube 13 is substantially parallel to the diameter CL1.

In this way, it is possible to greatly increase the ejection distance of the inner ring ejection tube and the outer ring ejection tube 13 to increase the distance between the inner ring ejection tube inlet 121 and the outer ring ejection tube inlet 131 as far as possible. Ejection performance.

In some embodiments, the main body 11 includes a bearing surface 111, the bearing surface 111 is substantially circular, and the main body 11 has an inner ring air inlet groove 112 and an outer ring inlet formed downward from the bearing surface 111 along the height direction of the main body 11.气槽 113。 The air tank 113. The inner ring intake groove 112 penetrates the bearing surface 111 and communicates with the inner ring ejection pipe inlet 121, and the outer ring intake groove 113 penetrates the bearing surface 111 and communicates with the outer ring ejection pipe inlet 131. The inner ring air intake groove 112 is formed with an inner ring air inlet opening 1121 on the bearing surface 111, and the outer ring air intake groove 113 is formed with an outer ring air inlet 1131 on the bearing surface 111. The inner ring air inlet 1121 and the outer ring The annular air inlet opening 1131 is located at two opposite ends of a diameter of the bearing surface 111.

In this way, the inner ring air inlet groove 112 can provide primary air for the inner ring flame, and the outer ring air inlet groove 113 can provide primary air for the outer ring flame. At the same time, the inner ring air inlet groove 112 and the outer ring air inlet groove 113 can be separated to a great extent, which can reduce the negative air pressure interference between the two and ensure that the inner ring ejection tube 12 and the outer ring lead The amount of primary air in the nozzle 13 makes the combustion more stable.

It can be understood that, in this embodiment, a diameter of the bearing surface 111 is the diameter CL1 of the main body 11, that is, the diameter of the bearing surface 111 may be the diameter of the main body 11, and a similar situation occurs in the following embodiments. When you can refer to here to understand. In the examples shown in FIGS. 4 to 7, the inner ring air intake groove 112 is located at the end where the inner ring ejection pipe inlet 121 is located, and the outer ring air intake groove 113 is located at the end where the outer ring ejection pipe inlet 131 is located.

In some embodiments, the area of the inner ring air intake opening 1121 is smaller than the area of the outer ring air intake opening 1131.

Specifically, in general, the combustion power of the inner ring flame of the burner 100 is lower, less gas is required, and less primary air is required. The outer ring flame is used as the main flame for heating the cooker. There is more gas, higher power, and more primary air is required. Therefore, this can be achieved by setting the area of the inner ring air intake opening 1121 smaller than the area of the outer ring air intake opening 1131. The specific area can be adjusted according to the combustion power required by the inner ring flame and the outer ring flame, and can be set according to actual needs.

In some embodiments, the inner ring ejection tube 12 is further formed with an inner ring ejection tube outlet 122 communicating with the inner ring ejection tube inlet 121, and the outer ring ejection tube 13 is further formed with an outer ring ejection tube inlet. 131 communicating outer ring ejection tube outlet 132. The main body 11 also has an inner ring mixing chamber 114 and an outer ring mixing chamber 115 along the height direction of the main body 11 along the height direction of the main body 11. The inner ring ejection tube outlet 122 communicates with the inner ring mixing cavity 114 and the outer ring ejection tube exit. 132 communicates with the outer ring mixing chamber 115. The inner ring mixing chamber 114 and the outer ring mixing chamber 115 both penetrate the bearing surface 111, and an inner ring gas outlet opening 1141 and an outer ring gas outlet opening 1151, an inner ring gas outlet opening 1141, and an outer ring gas outlet opening are formed on the bearing surface 111, respectively. 1151 is located at opposite ends of a diameter CL1 of the bearing surface 111 (as shown in FIG. 8).

Specifically, in the examples shown in FIGS. 4 to 7, the inner ring ejection tube outlet 122 is located at the end where the outer ring ejection tube inlet 131 is located, and the outer ring ejection tube outlet 132 is located at the inner ring ejection tube inlet 121. The end.

In this way, the ejection distance of the inner ring ejection tube 12 and the outer ring ejection tube 13 can be greatly increased, the ejection performance is improved, and the gas and air are more fully mixed.

It can be understood that, in the examples shown in FIG. 4 to FIG. 7, the inner ring mixing chamber 114 and the outer ring inlet groove 113 are located at the end of the outer ring ejection pipe inlet 131, and the two are misaligned and disconnected from each other. The ring mixing chamber 115 and the inner ring air inlet groove 112 are located at an end where the inner ring ejection pipe inlet 121 is located. The two are misaligned and disconnected.

In this way, the inner ring ejection pipe 12 communicates with the inner ring intake groove 112 and the inner ring mixing chamber 114, and the primary air that enters the inner ring ejection pipe 12 from the inner ring intake groove 112 and the inner ring ejection pipe 12 After the preliminary mixing, the inner ring mixing chamber 114 can be further fully mixed, so that it can be burned more fully during combustion, and more CO is prevented from being generated during combustion. At the same time, the outer ring ejection pipe 13 communicates with the outer ring intake groove 113 and the outer ring mixing chamber 115, and the primary air entering the outer ring ejection pipe 13 from the outer ring intake groove 113 can be combined with the gas in the outer ring ejection pipe 13 After the preliminary mixing, the mixture can be further fully mixed outside the outer ring mixing chamber 115 to enable it to burn more fully during combustion and prevent more CO from being generated during combustion.

Referring to FIG. 8, in some embodiments, the inner ring air inlet opening 1121 is substantially circular sector-shaped and extends counterclockwise from a position near the outer edge of the bearing surface 111 and corresponding to the inner ring ejection tube inlet 121. The first predetermined arc length 11211, the outer ring air inlet opening 1131 is basically a circular sector shape, and extends a second predetermined arc length counterclockwise from a position near the outer edge of the bearing surface 111 and corresponding to the outer ring ejection tube inlet 131 11311. The outer arc edge and inner arc edge of the inner ring air inlet opening 1121 and the outer ring air intake opening 1131 are concentric with the bearing surface 111. The radii are substantially the same, and the first predetermined arc length 11211 is substantially the same as the second predetermined arc length 11311. Further, in the example shown in FIG. 8, in order to realize that the area of the inner ring air inlet opening 1121 is smaller than that of the outer ring air inlet opening 1131, the outer ring air outlet opening 1151 may be extended into the inner ring air inlet opening 1121 to reduce the inner area. The area of the ring air inlet opening 1121 is such that the inner ring air inlet opening 1121 is smaller than the outer ring air inlet opening 1131.

Please refer to FIG. 8 again. In some embodiments, the area of the inner ring air outlet opening 1141 is smaller than the area of the outer ring air outlet opening 1151.

Generally, during the use of the burner 100, the power of the inner ring flame is low and the flame range is small. If too much intake air may cause insufficient combustion, resulting in low thermal efficiency. Therefore, setting the area of the inner ring gas outlet opening 1141 to be smaller than the area of the outer ring gas outlet opening 1151 can prevent too much mixed gas entering the inner ring from causing insufficient combustion.

In addition, please refer to FIG. 8. In some embodiments, the inner ring air outlet opening 1141 is substantially circular sector-shaped and is clockwise from a position corresponding to the outer ring ejection tube outlet 122 near the outer edge of the bearing surface 111. The third predetermined arc length 11411 is extended. The outer ring air outlet opening 1151 has a substantially circular sector shape, and extends a fourth predetermined arc length 11511 clockwise from a position close to the outer edge of the bearing surface 111 and corresponding to the outer ring ejection tube outlet 132. The outer arc edge and inner arc edge of the inner ring air outlet opening 1141 and the outer ring air outlet opening 1151 are concentric with the bearing surface 111. In the example shown in FIG. 8, in order to make the area of the inner ring air outlet opening 1141 smaller than the area of the outer ring air outlet opening 1151, the radius difference between the outer arc edge and the inner arc edge of the inner ring air outlet opening 1141 can be set to be larger than the outer radius. The difference in radius between the outer arc edge and the inner arc edge of the ring gas outlet opening 1151 is small and / or the length of the third predetermined arc length 11411 is set to be shorter than the length of the fourth predetermined arc length 11511.

Please refer to FIG. 5, FIG. 7, and FIG. 8. In some embodiments, the depth of the inner ring mixing chamber 114 gradually decreases in the clockwise direction, and the outer ring ejection tube 13 and the inner ring mixing chamber 114 The orthographic projections on the abutment surface 111 interfere with each other. The depth of the outer ring mixing chamber 115 gradually becomes shallower in the clockwise direction, and the orthographic projection of the inner ring ejection tube 12 and the outer ring mixing chamber 115 on the bearing surface 111 interfere with each other.

In this way, the space above the inner ring ejection tube 12 and the outer ring ejection tube 13 can be effectively used while ensuring the height of the bottom cup 10, so that the space of the inner ring mixing chamber 114 and the outer ring mixing chamber 115 is as much as possible. Larger, so that the gas and air can be more fully mixed, and the inner ring mixing chamber 114 and the outer ring mixing chamber 115 are set with a certain slope to reduce air flow resistance and improve the performance of the burner 100. At the same time, it is beneficial to reduce the overall height of the burner 100, and the burner 100 can be made more compact.

In some embodiments, the bottom cup 10 further includes an inner ring nozzle holder 14 communicating with the inner ring air inlet groove 112 and an outer ring nozzle holder 15 communicating with the outer ring air inlet groove 113. Both the inner ring nozzle holder 14 and the outer ring nozzle holder 15 have a through-hole tubular shape. The inner ring nozzle holder 14 is used to install an inner ring nozzle (not shown), and the outer ring nozzle holder 15 is used to install an outer ring nozzle (not shown).

The inner ring nozzle holder 14 corresponds to the inner ring ejection tube 12, and the outer ring nozzle holder 15 corresponds to the outer ring ejection tube 13. The gas is injected into the inner ring ejection pipe 12 through the inner ring nozzle installed on the inner ring nozzle holder 14, and the gas flow velocity is relatively large. When the gas is injected into the inner ring ejection pipe 12, negative pressure is formed. The air is sucked into the inner ring air inlet groove 112 and enters the inner ring jet pipe 12 through the inner ring jet pipe inlet 121 to be initially mixed with the gas, and then further mixed in the inner ring mixing chamber 114. Similarly, the gas is injected into the outer ring ejection tube 13 through an outer ring nozzle installed on the outer ring nozzle holder 15, and the gas flow velocity is large. When the gas is injected into the outer ring ejection tube 13, a negative pressure is formed. At this time, the outside air will be sucked into the outer ring air inlet groove 113 and enter the outer ring jet tube 13 through the outer ring jet tube inlet 131 to perform preliminary mixing with the gas, and then be further mixed in the outer ring mixing chamber 115.

It can be understood that, in this embodiment, both the inner ring nozzle holder 14 and the outer ring nozzle holder 15 may be integrally formed with the main body 11, or may be separately formed, and connected by welding or the like.

Please refer to FIG. 10 and FIG. 11 together. In some embodiments, the burner 100 further includes a fire splitter 20, which is disposed on the main body 11 of the bottom cup 10. The fire splitter 20 is formed with an inner ring chamber 21, The inner ring channel 22, the outer ring chamber 23, and the outer ring channel 24. The inner ring chamber 21 and the outer ring chamber 23 are annular, the inner ring channel 22 communicates with the inner ring chamber 21 and the inner ring mixing chamber 114 on the bottom cup 10, and the outer ring channel 24 communicates with the outer ring chamber 23 and The outer ring mixing chamber 115 on the bottom cup 10. The inner ring channel 22 is inclined toward the inside of the inner ring chamber 21, and the outer ring channel 24 is inclined toward the outside of the outer ring chamber 23.

In this way, the length of the inner ring channel 22 can be as long as possible while ensuring the height of the flame splitter 20. In this way, the gas and the primary air can be more fully mixed, and the pressure shock can be prevented from being caused by excessive pressure, which improves the performance of the burner. At the same time, when manufacturing the flame splitter 20, it can be easily manufactured by the upper and lower demolding processes, which improves the manufacturing efficiency and yield and reduces the manufacturing cost.

It can be understood that the inner ring chamber 21 of the firearm 20 and the inner ring mixing chamber 114 on the bottom cup 10 communicate to form the inner ring gas mixing chamber 50 of the burner 100, and the outer ring chamber 23 and the bottom of the firearm 20 The outer ring mixing chamber 115 on the cup 10 communicates with the outer ring gas mixing chamber 60 of the burner 100.

Please refer to FIG. 12 to FIG. 15. In some embodiments, the burner 100 further includes an inner fire cover 30 and an outer fire cover 40 that cooperate with the flame splitter 20. The inner fire cover 30 and the outer fire cover 40 are arranged concentrically. The cover 40 is provided with an outer ring fire hole 41 communicating with the outer ring chamber 23, and the inner fire cover 30 is provided with an inner ring fire hole 31 communicating with the inner ring chamber 21. When the burner 100 is placed horizontally, the inner ring fire hole 31 and the outer ring The orthographic projection of the central axis of the ring fire hole 41 on the horizontal plane and the radial direction of the burner 100 form a first angle α, the first angle α is 0 ° -45 °, the inner ring fire hole 31 and the outer ring fire The central axis of the hole 41 and the central axis of the burner 100 form a second included angle β, and the angle of the second included angle β ranges from 45 ° to 90 °.

In this way, the mixed gas can be ejected from the inner ring fire hole 31 and the outer ring fire hole 41 and is ignited to form an inner ring flame and an outer ring flame. The existence of the first included angle α and the second included angle β can form a rotating flame that gathers inward, and improves heating efficiency. In addition, when the first included angle α is too large, it is not conducive to the convergence of the flame. When the second included angle β is too small, the angle of the fire hole to the axial direction of the burner 100 is too small. During use, external residues and dirt Easy to enter the fire hole and block the fire hole. Therefore, setting the first included angle α at 0 ° -45 ° and the second included angle β at 45 ° -90 ° can make the flame of the burner 100 more converge and not easily block the fire hole.

Specifically, the inner ring fire hole 31 communicates with the inner ring chamber 21, and the mixed gas in the inner ring gas mixing chamber 50 can be ejected from the inner ring fire hole 31 to form an inner ring flame, and the outer ring fire hole 41 and the outer ring The chamber 23 communicates, and the mixed gas in the outer ring gas mixing chamber 60 can be ejected from the outer ring fire hole 41 to form an outer ring flame,

It can be understood that, in the examples of FIG. 12 and FIG. 14, the inner ring fire hole 31 and the outer ring fire hole 41 are arranged to rotate substantially counterclockwise to the center. In other embodiments, the inner ring fire hole 31 and the outer ring fire hole 41 can also be rotated clockwise to the center, which is not particularly limited.

In addition, it can also be understood that the first included angle α formed radially by the inner ring fire hole 31 and the outer ring fire hole 41 and the burner 100 and the second included angle β formed by the central axis of the burner 100 may be the same. It can be different, as long as it is within the range specified above.

It should be noted that the inner fire cover 30 cooperates with the inner ring chamber 21 of the firearm 20, the inner fire cover 30 defines the inner ring gas mixing chamber 50 of the burner 100, and the outer fire cover 40 and the outer ring chamber of the firearm 20 23 cooperation, the outer fire cover 40 defines an outer ring gas mixing chamber 60 of the burner 100.

In some embodiments, the outer fire cover 40 includes an outer ring inner wall 42, the inner fire cover 30 includes an inner ring inner wall 32, an outer ring fire hole 41 is provided on the outer ring inner wall 42, and an inner ring fire hole 31 is provided on the inner ring inner wall 32 on.

As such, the inner ring fire hole 31 faces the inner side of the inner fire cover 30 and the outer ring fire hole 41 faces the inner side of the outer fire cover 40. In this way, the burner 100 can form a cohesive flame, which can reduce the diffusion of heat to the outside and further improve the thermal efficiency.

Please refer to FIG. 4 to FIG. 7 again. When the burner 100 according to the embodiment of the present application is operating, the inner ring nozzle injects gas to the inner ring ejection pipe 12, and the gas flow velocity is relatively large. Negative pressure draws the primary air from the outside into the inner ring air intake groove 112 and the inner ring ejection tube 12 (the dashed arrows in FIGS. 4 and 5 indicate the inner ring primary air intake direction). Then, once the air and gas are initially mixed in the inner ring ejection tube 12 and then enter the inner ring mixing chamber 114 for further mixing, and then enter the inner ring channel 22 of the firearm 20 through the inner ring gas outlet opening 1141, and then pass through the inner ring channel 22 It is introduced into the inner ring chamber 21 and finally sprayed out through the inner ring fire hole 31 to form an inner ring flame. In addition, the outer ring nozzle injects gas to the outer ring ejection pipe 13, and the gas flow velocity is relatively large. A negative pressure is formed in the outer ring ejection pipe 13, and the primary air from the outside is drawn into the outer ring intake groove 113 and the outer ring ejection pipe. Nozzle 13 (the dotted arrows in FIGS. 6 and 7 indicate the primary air intake direction of the outer ring). Then, once the air and gas are initially mixed in the outer ring ejection tube 13 and then enter the outer ring mixing chamber 115 for further mixing, and then enter the outer ring channel 24 of the firearm 20 through the outer ring gas outlet opening 1151, and then pass through the outer ring channel 24 It is introduced into the outer ring chamber 23 and finally sprayed out through the outer ring fire hole 41 to form an outer ring flame.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “exemplary embodiments”, “examples”, “specific examples”, or “some examples”, etc., means that the embodiments are combined The specific features, structures, materials, or characteristics described by the examples are included in at least one implementation or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same implementation or example. Moreover, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more implementations or examples.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims

A burner characterized in that the burner is formed with an inner ring gas mixing cavity and an outer ring gas mixing cavity, and the burner includes:

A bottom cup, the bottom cup including a main body having a substantially disc shape, and an inner ring ejection tube and an outer ring formed on a lower side of the main body and in communication with the inner ring gas mixing cavity and the outer ring gas mixing cavity, respectively A ring ejection tube, the inner ring ejection tube is formed with an inner ring ejection tube inlet, the outer ring ejection tube is formed with an outer ring ejection tube inlet, the inner ring ejection tube inlet and the outer ring The ejection tube inlet is located at substantially opposite ends of one diameter of the body.
The burner of claim 1, wherein the body includes a substantially circular bearing surface, and the body is formed with:

An inner ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the inner ring ejection tube, the inner ring air inlet groove is formed with an inner ring air inlet opening on the abutment surface; and

An outer ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the outer ring ejection tube, the outer ring air inlet groove has an outer ring air inlet opening formed on the abutment surface, and the inner ring The air inlet opening and the outer ring air inlet are located at opposite ends of a diameter of the bearing surface.
The burner of claim 1, wherein the body includes a substantially circular bearing surface, and the body is formed with:

An inner ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the inner ring ejection tube, the inner ring air inlet groove is formed with an inner ring air inlet opening on the abutment surface; and

An outer ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the outer ring ejection tube, the outer ring air inlet groove has an outer ring air inlet opening formed on the abutment surface, and the inner ring The area of the air intake opening is smaller than the area of the outer ring air intake opening.
The combustor according to claim 3, wherein the inlet opening of the inner ring is substantially circular sector-shaped and is close to the outer edge of the bearing surface and corresponds to the inlet of the inner ring ejection tube Extends the first predetermined arc length counterclockwise;

The outer ring air inlet opening is substantially circular sector-shaped and extends a second predetermined arc length counterclockwise from a position near the outer edge of the bearing surface and corresponding to the outer ring ejection tube inlet;

Outer arc edges and inner arc edges of the inner ring air intake opening and the outer ring air intake opening are concentric with the bearing surface;

The radius of the outer arc edge and the inner arc edge of the inner ring air intake opening and the outer ring air intake opening are substantially the same; the first predetermined arc length is substantially the same as the second predetermined arc length;

The inner ring ejection tube is formed with an inner ring ejection tube outlet that communicates with the inner ring ejection tube inlet, and the outer ring ejection tube forms an outer ring ejection tube that communicates with the outer ring ejection tube inlet. A tube outlet, the body is formed with:

An inner ring mixing chamber that penetrates the abutment surface and communicates with the inner ring ejection tube outlet, the inner ring mixing chamber is formed with an inner ring gas outlet opening on the abutment surface; and

An outer ring mixing chamber that runs through the bearing surface and communicates with the exit of the outer ring ejector tube, the outer ring mixing chamber forms an outer ring gas outlet opening on the bearing surface, and the outer ring gas outlet opening Protrude into the inner ring air intake opening so that the area of the inner ring air intake opening is smaller than the area of the outer ring air intake opening.
The combustor according to claim 1, wherein the inner ring ejection tube forms an inner ring ejection tube outlet which communicates with the inner ring ejection tube inlet, and the outer ring ejection tube forms an external ejection tube. The main body of the outer ring ejection tube is connected to the outer ring ejection tube inlet, and the main body includes a substantially circular bearing surface. The main body is formed with:

An inner ring mixing chamber that penetrates the abutment surface and communicates with the inner ring ejection tube outlet, the inner ring mixing chamber is formed with an inner ring gas outlet opening on the abutment surface; and

An outer ring mixing chamber that runs through the bearing surface and communicates with the outer ring ejection tube outlet, the outer ring mixing chamber forms an outer ring gas outlet opening on the bearing surface, and the inner ring gas outlet opening And the outer ring air outlet opening is located at two opposite ends of a diameter of the bearing surface.
The combustor according to claim 1, wherein the inner ring ejection tube forms an inner ring ejection tube outlet which communicates with the inner ring ejection tube inlet, and the outer ring ejection tube forms an external ejection tube. The main body of the outer ring ejection tube is connected to the outer ring ejection tube inlet, and the main body includes a substantially circular bearing surface. The main body is formed with:

An inner ring mixing chamber that penetrates the abutment surface and communicates with the inner ring ejection tube outlet, the inner ring mixing chamber is formed with an inner ring gas outlet opening on the abutment surface; and

An outer ring mixing chamber passing through the bearing surface and communicating with the outer ring ejection tube outlet, the outer ring mixing chamber forming an outer ring gas outlet opening on the bearing surface, and the inner ring gas outlet opening Is smaller than the area of the outer ring air outlet.
The burner according to claim 6, wherein the inner ring gas outlet opening is substantially in a circular sector shape and is located near the outer edge of the bearing surface and corresponding to the exit of the inner ring ejection tube. The position extends clockwise a third predetermined arc length;

The outer ring gas outlet opening is substantially circular sector-shaped and extends clockwise a fourth predetermined arc length from a position close to the outer edge of the bearing surface and corresponding to the exit of the outer ring ejection tube;

The outer arc edge and the inner arc edge of the inner ring air outlet opening and the outer ring air outlet opening are concentric with the bearing surface;

The radius difference between the outer arc edge and the inner arc edge of the inner ring gas outlet opening is smaller than the radius difference between the outer arc edge and the inner arc edge of the outer ring gas outlet opening and / or the third predetermined arc length is smaller than the fourth The predetermined arc length.
The burner of claim 1, wherein the axes of the inner ring ejection tube and the outer ring ejection tube are substantially horizontal and located on both sides of the diameter, and the inner ring ejection tube and The axis of the outer ring ejection tube is substantially parallel to the diameter, and the inner ring ejection tube is formed with an inner ring ejection tube outlet communicating with the inner ring ejection tube inlet, and the outer ring ejection tube An outer ring ejection tube outlet communicating with the outer ring ejection tube inlet is formed, the main body includes a substantially circular bearing surface, and the main body is formed with:

An inner ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the inner ring ejection tube, and the inner ring air inlet groove forms an inner ring air inlet opening on the abutment surface; the inner ring The air intake opening is substantially in a circular sector shape and extends a first predetermined arc length counterclockwise from a position near the outer edge of the abutment surface and corresponding to the inlet of the inner ring ejection tube;

An outer ring air inlet groove that runs through the abutment surface and communicates with the inlet of the outer ring ejection tube, the outer ring air inlet groove has an outer ring air inlet opening formed on the abutment surface, and the outer ring The air inlet opening is substantially circular sector-shaped and extends a second predetermined arc length counterclockwise from a position near the outer edge of the bearing surface and corresponding to the outer ring ejection tube inlet. The inner ring air inlet opening And the outer arc edge and the inner arc edge of the outer ring air intake opening are concentric with the bearing surface;

An inner ring mixing chamber passing through the bearing surface and communicating with the inner ring ejection tube outlet, the inner ring mixing chamber has an inner ring gas outlet opening on the bearing surface, and the inner ring gas The opening is substantially circular sector-shaped and extends a third predetermined arc length clockwise from a position near the outer edge of the abutment surface and corresponding to the exit of the inner ring ejector tube; and

An outer ring mixing chamber that runs through the bearing surface and communicates with the exit of the outer ring ejector tube, the outer ring mixing chamber forms an outer ring gas outlet opening on the bearing surface, and the outer ring gas outlet opening A substantially circular sector shape extends clockwise for a fourth predetermined arc length from a position near the outer edge of the abutment surface and corresponding to the exit of the outer ring ejection tube.
The burner according to any one of claims 5, 6, and 8, wherein the inner ring gas outlet opening has a substantially circular sector shape, and the depth of the inner ring mixing chamber is clockwise. The upper part gradually becomes shallower, and the orthographic projection of the outer ring ejection tube and the inner ring mixing chamber on the bearing surface interfere with each other;

The outlet opening of the outer ring is substantially in the shape of a circular sector. The depth of the outer ring mixing chamber gradually decreases in a clockwise direction. The inner ring ejection tube and the outer ring mixing chamber are at The orthographic projections on the bearing surfaces interfere with each other.
The burner according to any one of claims 5, 6, and 8, wherein the burner further comprises a fire splitter provided on the main body, the fire splitter forming:

A ring-shaped inner ring chamber;

An inner ring channel connecting the inner ring chamber and the inner ring mixing chamber, the inner ring channel is inclined toward the inner portion of the inner ring chamber;

An annular outer ring chamber; and

An outer ring channel connecting the outer ring chamber and the outer ring mixing chamber, and the outer ring channel is inclined to the outside of the outer ring chamber.
The burner according to claim 10, wherein the burner further comprises an inner fire cover and an outer fire cover which cooperate with the fire splitter, and the inner fire cover and the outer fire cover are arranged concentrically, so The outer fire cover is provided with an outer ring fire hole communicating with the outer ring chamber. The inner fire cover is provided with an inner ring fire hole communicating with the inner ring chamber. When the burner is placed horizontally, the inner The orthographic projection of the central axis of the ring fire hole and the outer ring fire hole on the horizontal plane and the radial direction of the burner form a first angle, the first angle is 0 ° -45 °, the The central axis of the inner ring fire hole and the outer ring fire hole forms a second included angle with the central axis of the burner, and the angle of the second included angle ranges from 45 ° to 90 °.
A cooking cooker, comprising a burner, the burner is formed with an inner ring gas mixing cavity and an outer ring gas mixing cavity, and the burner includes:

A bottom cup, the bottom cup including a main body having a substantially disc shape, and an inner ring ejection tube and an outer ring formed on a lower side of the main body and in communication with the inner ring gas mixing cavity and the outer ring gas mixing cavity, respectively A ring ejection tube, the inner ring ejection tube is formed with an inner ring ejection tube inlet, the outer ring ejection tube is formed with an outer ring ejection tube inlet, the inner ring ejection tube inlet and the outer ring The ejection tube inlet is located at substantially opposite ends of one diameter of the body.
The cooking hob according to claim 12, wherein the main body includes a substantially circular bearing surface, and the main body is formed with:

An inner ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the inner ring ejection tube, the inner ring air inlet groove is formed with an inner ring air inlet opening on the abutment surface; and

An outer ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the outer ring ejection tube, the outer ring air inlet groove has an outer ring air inlet opening formed on the abutment surface, and the inner ring The air inlet opening and the outer ring air inlet are located at opposite ends of a diameter of the bearing surface.
The cooking hob according to claim 12, wherein the main body includes a substantially circular bearing surface, and the main body is formed with:

An inner ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the inner ring ejection tube, the inner ring air inlet groove is formed with an inner ring air inlet opening on the abutment surface; and

An outer ring air inlet groove that penetrates the abutment surface and communicates with the inlet of the outer ring ejection tube, the outer ring air inlet groove has an outer ring air inlet opening formed on the abutment surface, and the inner ring The area of the air intake opening is smaller than the area of the outer ring air intake opening.
The cooking hob according to claim 14, wherein the air inlet opening of the inner ring is substantially in a circular sector shape and is near the outer edge of the bearing surface and corresponds to the inlet of the inner ring ejection tube Extends the first predetermined arc length counterclockwise;

The outer ring air inlet opening is substantially circular sector-shaped and extends a second predetermined arc length counterclockwise from a position near the outer edge of the bearing surface and corresponding to the outer ring ejection tube inlet;

Outer arc edges and inner arc edges of the inner ring air intake opening and the outer ring air intake opening are concentric with the bearing surface;

The radius of the outer arc edge and the inner arc edge of the inner ring air intake opening and the outer ring air intake opening are substantially the same; the first predetermined arc length is substantially the same as the second predetermined arc length;

The inner ring ejection tube is formed with an inner ring ejection tube outlet that communicates with the inner ring ejection tube inlet, and the outer ring ejection tube forms an outer ring ejection tube that communicates with the outer ring ejection tube inlet. A tube outlet, the body is formed with:

An inner ring mixing chamber that penetrates the abutment surface and communicates with the inner ring ejection tube outlet, the inner ring mixing chamber is formed with an inner ring gas outlet opening on the abutment surface; and

An outer ring mixing chamber that runs through the bearing surface and communicates with the exit of the outer ring ejector tube, the outer ring mixing chamber forms an outer ring gas outlet opening on the bearing surface, and the outer ring gas outlet opening Protrude into the inner ring air intake opening so that the area of the inner ring air intake opening is smaller than the area of the outer ring air intake opening.
The cooking hob according to claim 12, wherein the inner ring ejection tube forms an inner ring ejection tube outlet which communicates with the inner ring ejection tube inlet, and the outer ring ejection tube forms an external ejection tube. The main body of the outer ring ejection tube is connected to the outer ring ejection tube inlet, and the main body includes a substantially circular bearing surface. The main body is formed with:

An inner ring mixing chamber that penetrates the abutment surface and communicates with the inner ring ejection tube outlet, the inner ring mixing chamber is formed with an inner ring gas outlet opening on the abutment surface; and

An outer ring mixing chamber that runs through the bearing surface and communicates with the outer ring ejection tube outlet, the outer ring mixing chamber forms an outer ring gas outlet opening on the bearing surface, and the inner ring gas outlet opening And the outer ring air outlet opening is located at two opposite ends of a diameter of the bearing surface.
The cooking hob according to claim 12, wherein the inner ring ejection tube forms an inner ring ejection tube outlet which communicates with the inner ring ejection tube inlet, and the outer ring ejection tube forms an external ejection tube. The main body of the outer ring ejection tube is connected to the outer ring ejection tube inlet, and the main body includes a substantially circular bearing surface. The main body is formed with:

An inner ring mixing chamber that penetrates the abutment surface and communicates with the inner ring ejection tube outlet, the inner ring mixing chamber is formed with an inner ring gas outlet opening on the abutment surface; and

An outer ring mixing chamber passing through the bearing surface and communicating with the outer ring ejection tube outlet, the outer ring mixing chamber forming an outer ring gas outlet opening on the bearing surface, and the inner ring gas outlet opening Is smaller than the area of the outer ring air outlet.
The cooking hob according to claim 17, wherein the air outlet opening of the inner ring has a substantially circular sector shape and is located near the outer edge of the bearing surface and corresponding to the exit of the inner ring ejection tube. The position extends clockwise a third predetermined arc length;

The outer ring gas outlet opening is substantially circular sector-shaped and extends clockwise a fourth predetermined arc length from a position close to the outer edge of the bearing surface and corresponding to the exit of the outer ring ejection tube;

The outer arc edge and the inner arc edge of the inner ring air outlet opening and the outer ring air outlet opening are concentric with the bearing surface;

The radius difference between the outer arc edge and the inner arc edge of the inner ring gas outlet opening is smaller than the radius difference between the outer arc edge and the inner arc edge of the outer ring gas outlet opening and / or the third predetermined arc length is smaller than the fourth The predetermined arc length.
The cooking hob according to claim 16 or 17, wherein the burner further comprises a fire splitter provided on the main body, the fire splitter forming:

A ring-shaped inner ring chamber;

An inner ring channel connecting the inner ring chamber and the inner ring mixing chamber, the inner ring channel is inclined toward the inner portion of the inner ring chamber;

An annular outer ring chamber; and

An outer ring channel connecting the outer ring chamber and the outer ring mixing chamber, and the outer ring channel is inclined to the outside of the outer ring chamber.
The cooking hob according to claim 19, wherein the burner further comprises an inner fire cover and an outer fire cover which cooperate with the fire splitter, and the inner fire cover and the outer fire cover are arranged concentrically, so The outer fire cover is provided with an outer ring fire hole communicating with the outer ring chamber. The inner fire cover is provided with an inner ring fire hole communicating with the inner ring chamber. When the burner is placed horizontally, the inner The orthographic projection of the central axis of the ring fire hole and the outer ring fire hole on the horizontal plane and the radial direction of the burner form a first angle, the first angle is 0 ° -45 °, the The central axis of the inner ring fire hole and the outer ring fire hole forms a second included angle with the central axis of the burner, and the angle of the second included angle ranges from 45 ° to 90 °.