Burner and gas stove

Abstract

The present invention discloses a burner, comprising an outer ring fire cover, wherein the burner is provided with a first area and a second area arranged alternately along the outer circumference of the outer ring fire cover, wherein a plurality of circular fire holes are evenly distributed on the first area, and a plurality of strip fire holes are evenly distributed on the second area. The present invention also discloses a gas stove, wherein the burner is installed thereon, so that the heating area is increased, the flame is more stable, and the thermal efficiency is improved. The present invention arranges the strip fire holes and the circular fire holes alternately, so that the pots and pans on the stove rack are heated more evenly, and a temperature sensor is also arranged in the burner, so that the temperature of the bottom of the pots and pans can be detected in real time.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas stoves, and in particular, relates to a burner, and more particularly, to a gas stove having the burner. Background Art

[0002] Household gas stoves are important kitchen appliances in people's daily lives. With the improvement of people's living standards, people have higher and higher requirements for the performance of gas stoves. Gas stoves mainly consist of four parts: gas supply system, combustion system, auxiliary system and ignition system. The main component of the combustion system is the burner. The burner is the main part of the household stove, which allows stable, safe and effective combustion. The traditional gas system will have unstable flames, small heating area and uneven heating when in use.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a burner, the purpose of which is to solve the problem of unstable flame of a gas stove and increase the heating area.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A burner includes an outer ring fire cover. The burner is provided with a first area and a second area distributed along the outer circumference of the outer ring fire cover. The first area and the second area are arranged in an alternating manner. The first area is provided with a plurality of circular fire holes, and the second area is provided with a plurality of strip fire holes.

[0007] Furthermore, a furnace rack is arranged on the burner, and claws extending to above the outer ring fire cover are provided on the furnace rack, and the claws are arranged correspondingly above the first area, so that the circular fire holes heat the pot after heat transfer through the claws; a second area is arranged between adjacent claws, so that the strip fire holes directly heat the pot on the furnace rack.

[0008] Furthermore, the circular fire holes and the strip fire holes are arranged in a circle around the circumference of the outer ring fire cover, and the center of the circular fire hole and the center of the strip fire hole are on a circle with the same diameter; preferably, the area of ​​the second area where the strip fire holes are provided is larger than the area of ​​the first area where the circular fire holes are provided; further preferably, the area of ​​the circular fire hole is smaller than the area of ​​the strip fire hole.

[0009] Furthermore, the strip fire hole extends radially along the outer ring fire cover, with one end of the strip fire hole facing the center of the burner and the other end extending to the outer periphery of the outer ring fire cover and provided with an outward opening; preferably, the outer peripheral side of the outer ring fire cover is a conical surface that gradually slopes downward from the inner periphery to the outer periphery, so that the strip fire hole sprays flames at an angle to increase the heating area.

[0010] Furthermore, the burner includes a fire cover seat, an outer ring fire cover is sleeved on the fire cover seat, an external mixing chamber is formed between the outer ring fire cover and the fire cover seat, and the external mixing chamber ignites outward through the strip fire hole and the circular fire hole; the fire cover seat is provided with a limiting surface that contacts the outer ring fire cover, so that the limiting surface of the fire cover seat is in limiting contact with the outer peripheral wall of the outer ring fire cover to close the end opening of the strip fire hole.

[0011] Furthermore, the strip fire holes penetrate the outer ring fire cover to form a fire outlet guide groove connected to the outer mixing chamber; the outer periphery of the outer ring fire cover extends toward the inner part of the outer mixing chamber to extend the length of the fire outlet guide groove formed by the strip fire holes.

[0012] Furthermore, at least one radially arranged fire transfer slot is provided on the outer ring fire cover, and the fire transfer slot extends from the inner periphery of the outer ring fire cover along the radial direction of the outer ring fire cover to between the centers of adjacent strip-shaped fire holes.

[0013] Furthermore, a center hole is axially arranged at the center of the burner, and a temperature sensor is installed in the center hole.

[0014] Furthermore, the burner includes an inner ring fire cover, an inner ring through hole is provided in the center of the inner ring fire cover, a fire cover seat through hole is provided in the center of the fire cover seat, the inner ring through hole and the fire cover seat through hole are coaxially arranged to form a center hole, a temperature sensor extending axially along the center hole is installed inside the center hole, and a probe of the temperature sensor protrudes from the inner ring fire cover to detect the bottom temperature of the pot mounted above the burner.

[0015] A gas stove is equipped with the burner mentioned above.

[0016] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0017] 1. The burner is provided with a first area and a second area arranged alternately along the outer circumference of the outer ring fire cover. The first area is evenly distributed with a plurality of circular fire holes, and the second area is evenly distributed with a plurality of strip fire holes. The circular fire holes are used to transmit fire to the bracket, and the strip fire holes are used to heat the pots on the stove rack, thereby increasing the heating area, making the pots heated more evenly, improving the heating efficiency, and better satisfying the users.

[0018] 2. Through the above arrangement, the strip fire holes are arranged at intervals so that the fire from adjacent fire holes is not interfered with. The strip fire holes are arranged radially so that the radial width of the flame is larger and the fire area is increased. The strip fire holes in the present invention have longer fire guide grooves to ensure the stability of the fire flame.

[0019] 3. The strip fire holes are radially and spaced apart, with one end facing the center of the burner and the other end having an opening outward. This arrangement is easy to process.

[0020] 4. A center hole is set at the center of the combustion system. A temperature sensor is installed in the center hole to detect the temperature at the bottom of the pot to prevent dry burning.

[0021] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0023] Figure 1 is an assembly diagram of a burner in an embodiment of the present invention;

[0024] Figure 2 2 is a schematic diagram of the structure of the inner ring fire cover in an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of the structure of the outer ring fire cover in an embodiment of the present invention;

[0026] Figure 4 2 is a schematic diagram of the structure of the fire cover seat in the embodiment of the present invention;

[0027] Figure 5 is a cross-sectional view of a burner in an embodiment of the present invention.

[0028] Description of the main components in the figure: 1. Inner ring fire cover; 11. Inner ring fire hole; 12. Inner ring flange; 13. Inner ring through hole; 2. Outer ring fire cover; 21. First area; 211. Circular fire hole; 22. Second area; 221. Strip fire hole; 23. Inner periphery; 24. Fire transfer gap; 3. Fire cover seat; 31. External gas channel; 32. Inner ring wall; 321. Slot; 33. Fire cover seat through hole 33; 34. Internal gas channel; 35. Outer ring wall; 36. Limiting surface; 361. Convex rib; 37. Eddy current slope; 371. Eddy current rib; 4. Internal mixing chamber; 5. External mixing chamber; 6. Center hole; 7. Temperature sensor.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0031] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figures 1 to 5 As shown, a burner described in an embodiment of the present invention includes an outer ring fire cover 2, and the burner is provided with a first area 21 and a second area 22 distributed along the outer circumference of the outer ring fire cover 2, the first area 21 and the second area 22 are arranged in an alternating manner, the first area 21 is provided with a plurality of circular fire holes 211, and the second area 22 is provided with a plurality of strip fire holes 221.

[0034] In the embodiment of the present invention, the burner includes an outer ring fire cover 2, and a first area 21 and a second area 22 are provided on the outer peripheral wall of the outer ring fire cover 2. A furnace rack is arranged on the burner, and the furnace rack is provided with support claws extending to the top of the outer ring fire cover 2. The support claws are correspondingly arranged above the first area 21, so that the circular fire holes 211 heat the pot after heat transfer through the support claws; the second area 22 is arranged between adjacent support claws, so that the strip fire holes 221 directly heat the pot on the furnace rack.

[0035] In the above arrangement, the first area 21 with the circular fire holes 211 and the second area 22 with the strip-shaped fire holes 221 are arranged in a staggered manner, thereby preventing the heat of the flame from being transferred to the grate and reducing heat loss.

[0036] In an embodiment of the present invention, the circular fire holes 211 and the strip fire holes 221 are arranged in a circle around the circumference of the outer ring fire cover 2, the center of the circular fire hole 211 and the center of the strip fire hole 221 are on a circle with the same diameter, the area of ​​the second region 22 where the strip fire hole 221 is provided is larger than the area of ​​the first region 21 where the circular fire hole 211 is provided; preferably, the area of ​​the circular fire hole 211 is smaller than the area of ​​the strip fire hole 221; the strip fire hole 221 extends radially along the outer ring fire cover 2, one end of the strip fire hole 221 faces the center of the burner, and the other end extends to the outer periphery of the outer ring fire cover 2 and is provided with an outward opening; preferably, the outer peripheral side of the outer ring fire cover 2 is a conical surface that gradually tilts downward from the inner periphery 23 to the outer periphery, so that the strip fire hole 221 tilts to spray flames to increase the heating area.

[0037] Through the above arrangement, the firing area of ​​the strip fire hole 221 is 3 to 4 times larger than that of the traditional circular fire hole 211, thereby increasing the heating area and making the bottom of the pot heated more evenly; the strip fire holes 221 are arranged at intervals so that the fires of adjacent fire holes are not interfered with, and the strip fire holes 221 are arranged radially so that the radial width of the flame is larger and the firing area is increased; the strip fire holes in the present invention are easy to process.

[0038] In an embodiment of the present invention, the burner includes a fire cover seat 3, an outer ring fire cover 2 is sleeved on the fire cover seat 3, an external mixing chamber 5 is formed between the outer ring fire cover 2 and the fire cover seat 3, and the external mixing chamber 5 ignites outward through the strip fire hole 221 and the circular fire hole 211; a limiting surface 36 in contact with the outer ring fire cover 2 is provided on the fire cover seat 3, so that the limiting surface 36 of the fire cover seat 3 is in limited contact with the outer peripheral wall of the outer ring fire cover 2 to close the end opening of the strip fire hole 221; the strip fire hole 221 penetrates the outer ring fire cover 2 to form a fire outlet guide groove connected to the external mixing chamber; the outer periphery of the outer ring fire cover 2 extends toward the inside of the external mixing chamber 5 to extend the length of the fire outlet guide groove formed by the strip fire hole 221.

[0039] In the above arrangement, the strip-shaped fire hole 221 has a fire guide groove with a length of about 10 mm, so that the fire flame is more stable.

[0040] In the embodiment of the present invention, at least one radially arranged fire transfer slit 24 is provided on the outer fire ring cover 2 , and the fire transfer slit 24 extends radially from the inner periphery 23 of the outer fire ring cover 2 to between the centers of adjacent strip-shaped fire holes 221 along the outer fire ring cover 2 .

[0041] Embodiment 1

[0042] like Figure 5 As shown, a burner described in this embodiment has a center hole 6 axially provided at the center of the burner, and a temperature sensor 7 is installed in the center hole 6 to prevent the cooker from drying out.

[0043] In this embodiment, the burner includes an inner ring fire cover 1, an inner ring through hole 13 is provided at the center of the inner ring fire cover 1, a fire cover seat through hole 33 is provided at the center of the fire cover seat 3, the inner ring through hole 13 and the fire cover seat through hole 33 are coaxially arranged to form a center hole 6, a temperature sensor 7 extending axially along the center hole 6 is installed inside the center hole 6, and the probe of the temperature sensor 7 protrudes from the inner ring fire cover 1 to detect the bottom temperature of the pot mounted above the burner.

[0044] Embodiment 2

[0045] like Figures 1 to 5 As shown, a gas stove described in this embodiment is equipped with the burner in the above embodiment, which ensures a larger heat load and also improves the thermal efficiency.

[0046] In this embodiment, the burner is a flat disc-shaped structure. Figure 1 The burner includes a fire cover seat 3, an outer ring fire cover 2 and an inner ring fire cover 1, and the outer ring fire cover 2 and the inner ring fire cover 1 are buckled on the fire cover seat 3.

[0047] In this embodiment, the fire cover seat 3 includes an inner ring wall 32, an outer ring wall 35 and a limiting surface 36 in contact with the outer peripheral wall of the outer ring fire cover 2. The outer ring fire cover 2 is sleeved on the fire cover seat 3, and an outer mixing chamber 5 is formed between the fire cover seat 3 and the outer ring fire cover 2. The inner ring fire cover 1 is sleeved on the inner ring wall 32, and the wall of the inner ring through hole 13 and the wall of the fire cover seat through hole 33 are plugged in; the inner ring through hole 13 is arranged along the axial direction of the inner ring fire cover 1, and the outer wall of the inner ring fire cover 1 and the wall of the inner ring through hole 13 form an inner mixing chamber 4.

[0048] In this embodiment, the inner ring fire cover 1, the outer ring fire cover 2 and the fire cover seat 3 are coaxially arranged, and the fire cover seat 3 is provided with an inner ring wall 32 for the inner ring fire cover 1 to be buckled and an outer ring wall 35 for the outer ring fire cover 2 to be buckled, the inner ring wall 32 and the outer ring wall 35 protrude and extend upward, the inner periphery 23 of the outer ring fire cover 2 is limitedly plugged in with the outer ring wall 35, the outer peripheral wall of the outer ring fire cover 2 is limitedly contacted with the limiting surface 36 of the fire cover seat 3, so as to seal and buckle the outer ring fire cover 2 on the fire cover seat 3, the outer wall of the inner ring fire cover 1 is plugged and fixed with the inner ring wall 32, the through hole wall of the inner ring fire cover 1 is clamped with the through hole wall of the fire cover seat 3, so as to seal and buckle the inner ring fire cover 1 on the fire cover seat 3.

[0049] In this embodiment, the periphery of the outer ring fire cover 2 is provided with a first area 21 and a second area 22 arranged in an interlaced manner, the first area 21 is provided with a circular fire hole 211, and the second area 22 is provided with a strip fire hole 221, both of which are connected to the outer mixing chamber 5; the inner ring fire cover 1 is provided with an inner ring fire hole 11, which is connected to the inner mixing chamber 4, and the outer ring fire cover 2 is provided with a fire transfer gap 24, which transfers the fire from the inner ring fire hole 11 to the strip fire hole 221 of the outer ring fire cover 2, and an ignition porcelain needle is provided between the inner ring fire cover 1 and the outer ring fire cover 2, and after the ignition porcelain needle ignites the inner ring fire hole 11, it is transferred to the strip fire hole 221 and the circular fire hole 211 of the outer ring through the fire transfer gap 24.

[0050] Embodiment 3

[0051] like Figure 1 and Figure 2 As shown, the burner described in this embodiment includes an inner ring fire cover 1, which is a columnar body and includes an inner ring through hole 13, an inner ring outer wall and an inner ring flange 12. The inner ring through hole 13 is arranged along the axial direction of the inner ring fire cover 1, and the inner ring outer wall and the inner ring through hole 13 wall form an inner mixing chamber 4. The inner mixing chamber 4 is closed at one end and is open at the other end and connected to the fire cover seat 3.

[0052] In this embodiment, an inner ring through hole 13 is provided at the center of the inner ring fire cover 1, and a fire cover seat through hole 33 is provided at the center of the fire cover seat 3. The inner ring through hole 13 and the fire cover seat through hole 33 are coaxially arranged to form a center hole 6. A temperature sensor 7 is installed inside the center hole 6 to detect the temperature of the bottom of the pot and prevent dry burning from damaging the pot.

[0053] In this embodiment, a circle of inner ring fire holes 11 are evenly arranged on the outer wall of the inner ring fire cover 1. The inner ring fire cover 1 is sleeved on the fire cover seat 3 to form an inner mixing chamber 4. The fire cover seat 3 is provided with at least one internal gas channel 34 connected to the inner mixing chamber 4, which is used to transport a mixture of internal gas and air to the inner mixing chamber 4. The inner mixing chamber 4 is connected to the inner ring fire holes 11.

[0054] In this embodiment, the inner ring fire cover 1 is sleeved on the fire cover seat 3, and the fire cover seat 3 is provided with an inner ring wall 32 which is limitedly plugged into the inner ring fire cover 1, the through hole wall of the inner ring fire cover 1 is limitedly contacted with the wall of the through hole 33 of the fire cover seat, and the outer wall of the inner ring fire cover 1 is limitedly plugged into the inner ring wall 32 of the fire cover seat 3.

[0055] In this embodiment, an inner ring flange 12 protruding outward is provided on the outer wall of the inner ring fire cover 1, and a slot 321 is provided on the fire cover seat 3 corresponding to the position where the ignition magnetic needle is installed. The slot 321 is installed in conjunction with the inner ring flange 12 on the inner ring fire cover 1 to provide positioning for the installation of the inner ring fire cover 1. When the outer wall of the inner ring fire cover 1 is plugged and fixed with the inner ring wall 32, the inner ring flange 12 is installed in the slot 321, so that the inner ring flange 12 is arranged above the ignition porcelain needle, which can prevent the soup from flowing onto the ignition porcelain needle and damaging the porcelain needle.

[0056] Embodiment 4

[0057] like Figure 1 and Figure 3 As shown, the burner described in this embodiment includes an outer ring fire cover 2, which is in a circular ring shape as a whole. A first area 21 and a second area 22 are provided on the outer periphery of the outer ring fire cover 2, and the first area 21 and the second area 22 are arranged alternately. A furnace rack is provided on the burner, and the support claws of the furnace rack extend outward to the top of the outer ring fire cover 2. A circular fire hole 211 is provided in the first area 21, and a strip fire hole 221 is provided in the second area 22. The strip fire hole 221 penetrates the outer peripheral wall of the outer ring fire cover 2 and is provided with an opening at one end outward. The outer peripheral wall of the outer ring fire cover 2 is inclined downward, so that the strip fire hole 221 tilts to spray flames to increase the heating area.

[0058] In this embodiment, a first area 21 and a second area 22 are provided on the outer periphery of the outer ring fire cover 2, and the first area 21 and the second area 22 are arranged alternately; a grate is placed on the burner of the combustion system device, and the first area 21 is arranged opposite to the claws of the grate for transmitting fire to the claws, and the second area 22 is distributed between adjacent claws of the grate for heating the pot. The strip fire holes 221 and the circular fire holes 211 are arranged alternately, which avoids the heat of the flame from being transferred to the grate, reduces heat loss, increases the heating area, and heats the bottom of the pot more evenly.

[0059] In this embodiment, the outer ring fire cover 2 is sleeved on the fire cover seat 3, and the fire cover seat 3 is provided with a limiting surface 36 that contacts the outer ring fire cover 2. The inner periphery 23 of the outer ring fire cover 2 is snap-fitted with the outer ring wall 35 of the fire cover seat 3, and the outer peripheral wall of the fire cover seat 3 is in limiting contact with the limiting surface 36 of the outer ring fire cover 2. An external mixing chamber 5 is formed between the outer ring fire cover 2 and the fire cover seat 3, and the external mixing chamber 5 is connected to the strip fire hole 221.

[0060] In the present embodiment, the strip fire hole 221 penetrates the outer peripheral wall of the outer ring fire cover 2 to form a fire guide groove, and the outer periphery of the outer ring fire cover extends toward the inside of the outer mixing chamber to extend the length of the fire guide groove formed by the strip fire hole to improve the stability of the fire flame; the strip fire hole 221 in the present embodiment has a fire guide groove with a length of 10 mm to ensure that the fire flame is more stable.

[0061] In this embodiment, at least one fire transfer gap 24 is provided on the outer fire ring cover 2 to transfer the inner fire ring to the outer fire ring. The fire transfer gap 24 extends radially from the inner periphery 23 of the outer fire ring cover 2 to between the centers of adjacent strip-shaped fire holes 221 along the outer fire ring cover 2.

[0062] Embodiment 5

[0063] like Figure 1 , Figure 4 and Figure 5 As shown, the burner described in this embodiment includes a fire cover seat 3, the cross-section of the fire cover seat 3 is circular, and it includes an inner ring and an outer ring. The inner ring is provided with an inner gas channel 34 connected to the inner gas mixing chamber 4, and a mixture of gas and air is transported to the inner gas mixing chamber 4. The outer ring includes an outer gas channel 31 connected to the outer gas mixing chamber 5, and a mixture of gas and air is transported to the outer gas mixing chamber 5.

[0064] In this embodiment, the inner ring fire cover 1, the outer ring fire cover 2 and the fire cover seat 3 are coaxially arranged, and the outer ring fire cover 2 and the inner ring fire cover 1 are both sleeved on the fire cover seat 3, so that the burner as a whole has a flat disc-shaped structure.

[0065] In this embodiment, a fire cover seat through hole 33 is provided in the center of the fire cover seat 3. The fire cover seat through hole 33 and the inner ring through hole 13 are coaxially arranged to form a center hole 6. A temperature sensor 7 is installed inside the center hole 6 to detect the temperature of the bottom of the pot to prevent dry burning.

[0066] In this embodiment, the fire cover seat 3 includes an inner wall of a fire cover seat through hole 33, an inner annular wall 32, an outer annular wall 35 and a limiting surface 36. The inner wall of the through hole and the through hole wall of the inner ring fire cover 1 are plugged and fixed, the outer wall of the inner ring fire cover 1 and the inner annular wall 32 are fixed and installed in a limiting manner to form an inner mixing chamber 4. The outer annular wall 35 and the inner periphery 23 of the outer ring fire cover 2 are clamped and fixed, and the limiting surface 36 of the fire cover seat 3 and the outer peripheral wall of the outer ring fire cover 2 are in limiting contact to form an outer mixing chamber 5.

[0067] In this embodiment, the limiting surface 36 is inclined upward, and a circle of convex ribs 361 is provided on its outer periphery to limit the outer peripheral wall of the outer ring fire cover 2.

[0068] In this embodiment, a slot 321 is provided on the inner ring wall 32, and the slot 321 cooperates with the inner ring flange 12 on the inner ring fire cover 1 to provide positioning for the installation of the inner ring fire cover 1. When the outer wall of the inner ring fire cover 1 is plugged and fixed to the inner ring wall 32, the inner ring flange 12 is installed in the slot 321.

[0069] In this embodiment, the fire cover seat 3 is provided with an internal gas passage 34 communicating with the internal gas mixing chamber 4 , which is used for conveying a mixture of the internal gas and air to the internal gas mixing chamber 4 .

[0070] In the present embodiment, at least one external gas channel 31 connected to the external gas mixing chamber 5 is provided on the fire cover seat 3, which is used to transport the mixture of gas and air to the external gas mixing chamber 5. In the present embodiment, three external gas channels 31 are provided, each of which is arranged in an arc-shaped structure, and the arc bending directions of the three gas channels are the same. Preferably, the opening cross-sectional area of ​​the external gas channel 31 connecting to the external mixing chamber is larger than the opening cross-sectional area of ​​the external gas channel 31 connecting to the fire cover seat 3, so as to adjust the flow rate into the external gas mixing chamber 5.

[0071] like Figure 5 As shown, the arrow in the figure indicates the direction of gas flow.

[0072] In this embodiment, at least two vortex slopes 37 located in the external mixing chamber 5 are provided on the surface of the fire cover seat 3 facing the outer ring fire cover 2, and vortex ribs 371 are provided between adjacent vortex slopes 37 to facilitate the formation of vortices in the external mixing chamber 5. One end of the vortex slope 37 is higher than the other end, which can enable the gas and air to be fully mixed in the external mixing chamber 5, thereby improving the combustion efficiency.

[0073] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A burner, comprising an outer ring fire cover, characterized in that: The burner is provided with a first area and a second area distributed along the outer circumference of the outer ring fire cover, the first area and the second area are arranged in an alternating manner, the first area is provided with a plurality of circular fire holes, and the second area is provided with a plurality of strip-shaped fire holes; The burner comprises a fire cover seat, an outer ring fire cover is sleeved on the fire cover seat, an outer mixing air chamber is formed between the outer ring fire cover and the fire cover seat, and the outer mixing air chamber ignites outward through the strip fire hole and the circular fire hole; a limiting surface in contact with the outer ring fire cover is provided on the fire cover seat, so that the limiting surface of the fire cover seat is in limiting contact with the outer peripheral wall of the outer ring fire cover to close the end opening of the strip fire hole; The fire cover seat is provided with at least one external gas passage connected to the external gas mixing chamber, and the external gas passage is used for conveying a mixture of gas and air to the external gas mixing chamber.

2. A burner according to claim 1, characterized in that: A furnace frame is arranged on the burner, and claws are arranged on the furnace frame and extend to the top of the outer ring fire cover. The claws are arranged above the first area accordingly, so that the circular fire holes heat the pot after heat transfer through the claws; a second area is arranged between adjacent claws, so that the strip fire holes directly heat the pot on the furnace frame.

3. A burner according to claim 1, characterized in that: The circular fire holes and the strip fire holes are arranged in a circle around the circumference of the outer ring fire cover, and the centers of the circular fire holes and the strip fire holes are on circles with the same diameter.

4. A burner according to claim 3, characterized in that: The area of ​​the second region provided with the strip-shaped fire holes is larger than the area of ​​the first region provided with the circular fire holes.

5. A burner according to claim 4, characterized in that: The area of ​​the circular fire hole is smaller than that of the strip fire hole.

6. A burner according to any one of claims 1 to 5, characterized in that: The strip fire hole extends radially along the outer ring fire cover, one end of the strip fire hole faces the center of the burner, and the other end extends to the outer periphery of the outer ring fire cover and is provided with an outward opening.

7. A burner according to claim 6, characterized in that: The outer peripheral side of the outer ring fire cover is a conical surface which gradually slopes downward from the inner periphery to the outer periphery, so that the strip-shaped fire holes spray out flames at an angle to increase the heating area.

8. A burner according to claim 6, characterized in that: The strip fire hole penetrates the outer ring fire cover to form a fire outlet guide groove connected to the outer mixing chamber; the outer periphery of the outer ring fire cover extends toward the inner part of the outer mixing chamber to extend the length of the fire outlet guide groove formed by the strip fire hole.

9. A burner according to any one of claims 1 to 5, characterized in that: The outer ring fire cover is provided with at least one radially arranged fire transfer slot, which extends from the inner periphery of the outer ring fire cover along the radial direction of the outer ring fire cover to between the centers of adjacent strip-shaped fire holes.

10. A burner according to any one of claims 1 to 5, characterized in that: A center hole is axially arranged at the center of the burner, and a temperature sensor is installed in the center hole.

11. A burner according to claim 10, characterized in that: The burner includes an inner ring fire cover, an inner ring through hole is provided in the center of the inner ring fire cover, a fire cover seat through hole is provided in the center of the fire cover seat, the inner ring through hole and the fire cover seat through hole are coaxially arranged to form a center hole, a temperature sensor extending axially along the center hole is installed inside the center hole, and a probe of the temperature sensor protrudes from the inner ring fire cover to detect the bottom temperature of the pot mounted above the burner.

12. A gas stove, characterized in that: A burner according to any one of claims 1 to 11 is installed.

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