WO2020047967A1 - 燃烧器和烹饪灶具 - Google Patents

燃烧器和烹饪灶具 Download PDF

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Publication number
WO2020047967A1
WO2020047967A1 PCT/CN2018/112325 CN2018112325W WO2020047967A1 WO 2020047967 A1 WO2020047967 A1 WO 2020047967A1 CN 2018112325 W CN2018112325 W CN 2018112325W WO 2020047967 A1 WO2020047967 A1 WO 2020047967A1
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WO
WIPO (PCT)
Prior art keywords
mixed gas
burner
ejection
side wall
gas tank
Prior art date
Application number
PCT/CN2018/112325
Other languages
English (en)
French (fr)
Inventor
孙明雪
林梦
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201821443508.9U external-priority patent/CN209042343U/zh
Priority claimed from CN201811020441.2A external-priority patent/CN109114553A/zh
Priority claimed from CN201811019301.3A external-priority patent/CN109000228A/zh
Priority claimed from CN201821444351.1U external-priority patent/CN209042348U/zh
Priority claimed from CN201811019302.8A external-priority patent/CN109000229A/zh
Priority claimed from CN201821443534.1U external-priority patent/CN208920052U/zh
Priority claimed from CN201811020444.6A external-priority patent/CN109000230B/zh
Priority claimed from CN201821443509.3U external-priority patent/CN209042344U/zh
Application filed by 佛山市顺德区美的洗涤电器制造有限公司 filed Critical 佛山市顺德区美的洗涤电器制造有限公司
Publication of WO2020047967A1 publication Critical patent/WO2020047967A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors

Definitions

  • the invention relates to the field of domestic cookers, in particular to a burner and a cooking cooker.
  • the burner in the related technology uses an ejection tube to mix gas and air.
  • the ejection tube is generally arranged horizontally or vertically.
  • the length of the ejection tube is limited, which results in a limited ejection distance, which may cause insufficient ejection, gas and air
  • Insufficient mixing can easily cause more carbon monoxide to be generated when the mixed gas is burned, and the thermal efficiency is low, which makes it difficult to meet the requirements of high-power burners.
  • embodiments of the present invention provide a burner and a cooking hob.
  • the burner according to the embodiment of the present invention includes a fire splitter, and the fire splitter includes a body and at least one ejection tube, the body is formed with a mixed gas tank; the at least one ejection tube is disposed below the body and is in contact with the The mixed gas tank is in communication.
  • the burner is placed horizontally, at least one of the ejection tubes is inclined relative to the horizontal direction, and an angle between the at least one of the ejection tubes and the horizontal direction is 26. ° -50 °.
  • An embodiment of the present invention further provides a cooking stove including a burner, the burner including a fire splitter, the fire splitter including a body and at least one ejection tube, and the body is formed with a mixed gas tank;
  • the at least one ejection tube is disposed below the main body and communicates with the mixed gas tank.
  • the burner and cooking stove can extend the length of the ejector tube without changing the height and lateral dimensions of the burner, enhance the ejection ability of the ejector tube, and make the gas and air
  • the mixing in the ejection tube is more sufficient, so that the combustion of the gas is more sufficient, the content of carbon monoxide is lower, which effectively improves the thermal efficiency of the burner, which is conducive to the application of high-power burners, and the appropriate inclination angle of the ejection tube can be set.
  • the miniaturization of the burner is favorable, the manufacturing difficulty and production cost of the burner can also be reduced.
  • FIG. 1 is a schematic perspective view of a burner according to an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of a burner according to an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view of the burner of FIG. 1 along the line III-III;
  • FIG. 4 is a schematic cross-sectional view of the burner of FIG. 2 taken along the line IV-IV;
  • FIG. 5 is a schematic perspective view of a bottom cup according to an embodiment of the present invention.
  • FIG. 6 is a schematic cross-sectional view of a bottom cup according to an embodiment of the present invention.
  • FIG. 7 is a schematic perspective view of a nozzle according to an embodiment of the present invention.
  • FIG. 8 is a schematic perspective view of a fire splitter according to an embodiment of the present invention.
  • FIG. 9 is another perspective view of the fire splitter according to the embodiment of the present invention.
  • FIG. 10 is another perspective view of the fire splitter according to the embodiment of the present invention.
  • FIG. 11 is a schematic plan view of a fire cover according to an embodiment of the present invention.
  • FIG. 12 is a schematic cross-sectional view of the burner of FIG. 1 along a line XII-XII;
  • FIG. 13 is a schematic cross-sectional view of the burner of FIG. 2 along the line XIII-XIII;
  • FIG. 14 is a schematic perspective view of a burner according to another embodiment of the present invention.
  • FIG. 15 is a schematic cross-sectional view of the burner of FIG. 14 along the XV-XV line;
  • FIG. 16 is a schematic perspective view of a fire splitter according to another embodiment of the present invention.
  • FIG. 17 is a schematic cross-sectional view of the fire extinguisher of FIG. 16 along the line XVII-XVII;
  • FIG. 18 is a schematic perspective view of a burner according to another embodiment of the present invention.
  • FIG. 19 is a schematic cross-sectional view of the burner of FIG. 18 along the line IXX-IXX;
  • FIG. 20 is a schematic cross-sectional view of the burner of FIG. 18 along the line XX-XX;
  • FIG. 21 is a schematic perspective view of a fire splitter according to another embodiment of the present invention.
  • FIG. 22 is a schematic cross-sectional view of the burner of FIG. 18 taken along line IXX-IXX of another embodiment
  • FIG. 23 is a schematic perspective view of a fire splitter according to another embodiment of the present invention.
  • 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 invention, the meanings of “multiple” and “multiple roots” are two or more than two exponential quantities, unless specifically defined otherwise.
  • the burner 100 may be used in a cooking range, for example, a household gas range (not shown).
  • a cooking range for example, a household gas range (not shown).
  • the burner 100 can be placed horizontally as shown in FIG. 4, installed on a gas stove, and connected to a gas source, so that the gas is ignited and burned by the burner 100 for cooking.
  • the burner 100 includes a bottom cup 10, a nozzle 20, a flame splitter 30, a fire cover 40, an ignition pin 50, and a thermocouple 60.
  • the bottom cup 10 may be made of cast iron, cast aluminum, or cast copper, and is substantially a round cup.
  • the bottom cup 10 includes a support surface 11 that is substantially circular and is located on top of the bottom cup 10 when the burner 100 can be placed horizontally as shown in FIG. 4.
  • the bottom cup 10 forms a primary air from the support surface 11 along the height direction of the bottom cup 10 (ie, the vertical direction in FIG. 4) to reach the chamber 12.
  • the primary air reaching the chamber 12 is substantially columnar and penetrates the support surface 11 to form a primary air inlet 121.
  • the primary air inlet 121 is symmetrical about a center line CL1 of the support surface 11 (or a diameter parallel to the center line CL1 in the support surface 11), and forms two straight edges 122 that are substantially parallel to the center line CL1 and connects the two straight edges.
  • the two arc edges 123 of 122 The two arc edges 123 basically fall on the same circle, and the circle where the two arc edges 123 are located is substantially concentric with the circle where the support surface 11 is located.
  • the ratio of the width of the primary air inlet 121 (the distance between the two straight edges 122) to the length of the diameter of the support surface 11 is between 1/2 and 1/4, and the length of the primary air inlet 121 (the two circular edges).
  • the ratio of the length of the 123 intercepting center line CL1) to the length of the diameter of the support surface 11 is between 3/5 and 9/10, that is, the primary air inlet 121 is elongated.
  • the primary air reaching chamber 12 is formed with a planar side wall 124 corresponding to the two straight sides 122, an arc wall 125 corresponding to the two arc sides 123, and a bottom surface 126 connecting the plane side wall 124 and the arc wall 125.
  • the planar sidewall 124 and the arc-shaped wall 125 are substantially perpendicular to the support surface 11, and the bottom surface 126 is substantially parallel to the support surface 11.
  • the shape of the primary air reaching the chamber 12 is regular, and the bottom cup 10 is convenient for molding and manufacturing.
  • the bottom cup 10 has a first mounting through-hole 13 and a second mounting through-hole 14 formed downward from the support surface 11 in the height direction of the bottom cup 10.
  • the straight lines of the centers of the first mounting through-hole 13 and the second mounting through-hole 14 are symmetrical with respect to the center line CL1 and are located on both sides of the primary air reaching the chamber 12 and pass through the centers of the first mounting through-hole 13 and the second mounting through-hole 14 The position near the center of the circle where the support surface 11 is located.
  • the bottom cup 10 further includes an outer circumferential side surface 15 and a nozzle holder 16 penetrating the outer circumferential side surface 15 and the corresponding arc-shaped wall 125 is formed at a position of an arc-shaped wall 125 near the bottom surface 126.
  • the nozzle holder 16 has a through-hole tube shape, penetrates the outside of the bottom cup 10 and the primary air reaches the chamber 12.
  • the nozzle holder 16 sequentially forms an external connection portion 161, a communication portion 162, and a nozzle mounting portion 163 that communicate with each other from the outside toward the inside of the chamber 12 from the primary air.
  • the outer connection portion 161 is located outside the bottom cup 10, and the nozzle mounting portion 163 is located inside the primary air reaching chamber 12.
  • the external connection portion 161 is substantially coaxial with the communication portion 162, and the center line CL2 of the external connection portion 161 and the communication portion 162 is substantially parallel to the support surface 11 and the orthographic projection on the support surface 11 falls on the center line CL1.
  • the external connection portion The outer contour of 161 is a hexahedral cylinder, the inner contour is a round through hole, the inner contour of the communication portion 162 is a round through hole, and the diameter is smaller than the inner contour of the outer connecting portion 161.
  • the orthographic projection of the center line CL3 of the nozzle mounting portion 163 on the support surface 11 also falls on the center line CL1, but it is disposed obliquely compared to the center line CL2 of the external connection portion 161 and the communication portion 162.
  • An internal thread (not shown) is formed in the inner contour of the nozzle mounting portion 163.
  • the nozzle 20 is basically a through-hole tube, and includes a head 21 and a connecting portion 22 extending substantially coaxially from the head 21.
  • the head 21 includes a substantially regular hexagonal columnar shape.
  • the outer contour of the connecting portion 22 corresponds to the inner contour of the nozzle mounting portion 163.
  • the outer contour of the connecting portion 22 is slightly larger than the inner contour of the nozzle mounting portion 163.
  • the connecting portion 22 includes an outer contour that is substantially cylindrical and is provided with external threads.
  • the nozzle 20 is formed at an end away from the head 21 from the connecting portion 22, extends along the center line CL4 direction of the nozzle 20, and is formed through the connecting portion 22 and the head 21.
  • the taper hole 23 is formed with a nozzle inlet 24 located at the connection portion 22 and a nozzle outlet 25 located at the head portion 21.
  • the fire splitter 30 may be made of cast iron, cast aluminum, or cast copper, and includes a body 31 and an ejection tube 32.
  • the main body 31 includes a substantially disk-shaped partition 311, and the partition 311 includes an upper surface 3111 and a lower surface 3112 opposite to the upper surface 3111.
  • the upper surface 3111 is located at the top of the partition plate 311 and is substantially parallel to the horizontal direction
  • the lower surface 3112 is located at the lower portion of the partition plate 311 and is substantially parallel to the horizontal direction.
  • the upper surface 3111 includes an outer edge 3113 and an inner edge 3114 that are substantially circular.
  • the inner edge 3114 includes a first inner edge 3115 that is substantially a superior arc segment and a second inner edge that is connected to the first inner edge 3115 and is a generally inferior arc segment.
  • Edge 3116 The circle where the first inner edge 3115 is located is substantially concentric with the circle where the outer edge 3113 is located, and the circle where the second inner edge 3116 is located is inscribed inside the circle where the outer edge 3113 is located.
  • the diameter of the circle in which the outer edge 3113 is located is greater than the diameter of the circle in which the first inner edge 3115 is located, and the diameter of the circle in which the first inner edge 3115 is located is greater than the diameter of the circle in which the second inner edge 3116 is located.
  • the center of the circle where the outer edge 3113 is located, the center of the circle where the first inner edge 3115 is located, and the center of the circle where the second inner edge 3116 is located substantially fall on the center line CL5 of the outer edge 3113.
  • the inner edge 3114 is in the shape of a fish mouth, which can improve the viewing of the appearance of the burner 100.
  • the partition plate 311 forms two inner ring secondary air passages 3117 in the inner edge 3114, so that the shielding portion 3118 remains.
  • the two inner ring secondary air passages 3117 are located on both sides of the center line CL5 and are symmetrical about the center line CL5.
  • the inner ring secondary air passage 3117 is substantially circular sector-shaped and is aligned with part of the first inner edge 3115 and part of the second inner edge 3116.
  • the angle of the arc length of the inner air secondary air passage 3117 is between 60 degrees and 90 degrees.
  • the shielding portion 3118 includes a body portion 31181 and a tail portion 31182.
  • the body portion 31181 is substantially circular and is connected to the second inner edge 3116.
  • the body portion 31181 is formed with a first positioning through hole 31183 and a second positioning through hole 31184 corresponding to the first mounting through hole 13 and the second mounting through hole 14, respectively, that is, the first positioning through hole 31183 and the second positioning
  • the center of the through hole 31184 is located on both sides of the center line CL5 and is symmetrical with respect to the center line CL5.
  • a straight line passing through the centers of the first positioning through hole 31183 and the second positioning through hole 31184 is near the center of the circle where the partition plate 311 is located.
  • the tail portion 31182 connects the body portion 31181 and the first inner edge 3115, and the size of the portion 31181 in the direction perpendicular to the center line CL5 gradually increases toward the first inner edge 3115.
  • the shielding portion 3118 has a fish shape.
  • the body portion 31181 resembles a fish body
  • the tail portion 31182 resembles a fish tail
  • the first positioning through-hole 31183 and the second positioning through-hole 31184 resemble fish eyes, which can improve the overall appearance.
  • the body 31 includes an outer edge sidewall 312 extending upward from the outer edge 3113 and an inner edge sidewall 313 extending upward from the inner edge 3114.
  • the inner edge sidewall 313 includes a first inner edge sidewall 3131 extending upward from the first inner edge 3115 and a second inner edge sidewall 3132 extending upward from the second inner edge 3116.
  • the outer edge side wall 312 and the inner edge side wall 313 have the same height and collectively define a mixed gas tank 314.
  • the mixed gas tank 314 includes a first mixed gas tank 3141 defined by the outer edge side wall 312 and the first inner edge side wall 3131, and a first mixed gas tank 3141 defined by the outer edge side wall 312 and the second inner edge side wall 3132.
  • Two mixed gas tanks 3142 are provided.
  • the first mixed gas tank 3141 is substantially annular
  • the second mixed gas tank 3142 is substantially circular. Both ends of the first mixed gas tank 3141 are in communication with the second mixed gas tank 3142.
  • a plurality of first fire orifices 3121 are formed on the top of the outer edge sidewall 312.
  • the first fire orifices 3121 are distributed along the circumferential direction of the outer edge sidewall 312 and penetrate the outer edge sidewall 312 along the radial direction of the outer edge sidewall 312.
  • a plurality of second fire apertures 31311 are formed on the top of the first inner edge side wall 3131.
  • the second fire apertures 31311 are distributed along the circumferential direction of the first inner edge side wall 3131 and along the radial direction of the first inner edge side wall 3131. Through the first inner edge sidewall 3131.
  • a plurality of third fire apertures 31321 are formed on the top of the second inner edge side wall 3132.
  • the third fire apertures 31321 are distributed along the circumferential direction of the second inner edge side wall 3132 and along the radial direction of the second inner edge side wall 3132. Through the second inner edge sidewall 3132.
  • the size of the first fire orifice 3121 is larger than the size of the second fire orifice 31311, and the size of the third fire orifice 31321 is larger than the size of the first fire orifice 3121.
  • the outer edge 3113 is used to form the outer ring flame. As the main firepower in the cooking process, the required amount of flame is large.
  • the inner edge 3114 is used to form the inner ring flame and is used to assist the outer ring flame, so the outer edge can be adjusted.
  • the size of the fire orifice of 3113 is larger than the size of the fire orifice of the inner edge 3114, but because the arc length of the second inner edge 3116 is shorter and near the center of the circle of the outer edge 3133, in order to make the cooking cooker more evenly heated inside and outside
  • the size of the fire orifice of the second inner edge 3116 can be adjusted to be larger than the size of the fire orifice of the outer edge 3113. In this way, adjusting the size of the fire orifice according to different positions can further facilitate more uniform heating inside and outside the cooking cooker.
  • the ejection tube 32 may be made of cast iron, cast aluminum, or cast copper, and has a substantially circular tube shape.
  • the ejection pipe 32 is formed with a gas inlet 321 and a gas outlet 322 communicating with the gas inlet 321.
  • the ejection pipe 32 is used to mix the gas and primary air entering from the gas inlet 321, and eject the mixed gas from the gas outlet.
  • the gas outlet 322 is in communication with the mixed gas tank 314 and is used to supply the mixed gas to the mixed gas tank 314.
  • the ejection tube 32 is fixedly connected to the body 31.
  • the ejection tube 32 and the main body 31 may be manufactured in an integrated process.
  • the ejection tube 32 and the main body 31 may be integrally formed by a mold, and then the tube hole of the ejection tube 32 is formed by a core drawing process.
  • the integrally formed ejection tube 32 and the main body 31 have better sealing performance, and can reduce the risk of air leakage of the burner 100.
  • the ejection tube 32 and the body 31 can also be manufactured by a non-integrated manufacturing process.
  • the ejection tube 32 and the body 31 can be assembled by welding after being formed separately, which is not limited herein.
  • the ejection tube 32 is fixedly connected to the partition plate 311 and penetrates the partition plate 311 so as to communicate with the mixed gas tank 314, or the gas outlet 322 is formed on the upper surface 3111.
  • the ejection pipe 32 is inclinedly disposed relative to the horizontal direction, or the ejection pipe 32 is inclinedly disposed relative to the partition plate 311 and fixedly connected.
  • the inclination angle of the ejection tube 32 relative to the partition plate 311 is substantially the same as the inclination angle of the center line CL3 of the nozzle mounting portion 163 relative to the support surface 11, between 25-60 degrees, and is installed behind the bottom cup 10
  • the ejection tube 32 is disposed coaxially with the nozzle 20.
  • the orthographic projection of the centerline CL6 of the ejection tube 32 on the upper surface 3111 substantially coincides with the centerline CL5, and the orthographic projection of the ejection tube 32 on the upper surface 3111 is substantially symmetrical about the centerline CL5.
  • the orthographic projection of the gas inlet 321 on the upper surface 311 is located in the tail portion 31182, the gas outlet 322 is located in the second mixed gas tank 3142, has an oval shape, and the long axis substantially falls on the center line CL5.
  • the ejection pipe 32 includes a first pipe section 323, a second pipe section 324, and a third pipe section 325 that are substantially coaxial, interconnected and communicated with each other from the gas inlet 321 to the gas outlet 322.
  • a gas inlet 321 is formed at one end of the first pipe section 323 away from the second pipe section 324, and the inner diameter gradually decreases toward the ejection pipe 32.
  • the inner diameter of the second pipe section 324 is substantially fixed.
  • the inner diameter of the third pipe section 325 gradually increases toward the outside of the ejection pipe 32, and the length distance along the center line CL6 direction is greater than the length distance of the second pipe section 324.
  • the fire splitter 30 further includes a space portion 33 extending downward from the lower surface 3112 and a limiting portion 34 extending downward from the space portion 33.
  • the spacer 33 is used to separate the support surface 11 and the lower surface 3112 and includes a bearing surface 331 corresponding to the support surface 11.
  • the bearing surface 331 is spaced from the lower surface 3112 and is substantially parallel to each other.
  • the firearm 30 moves downward in the vertical direction.
  • the limiting portion 34 is used to limit the horizontal movement of the flame splitter 30 on the support surface 11.
  • the spacer 33 includes a spacer 332 extending downward from the corresponding tail portion 31182 and a protrusion 333 extending from a side of the third pipe section 325 opposite to the body 31.
  • the limiting portion 34 includes a first clamping block 341 extending downward from the bearing surface 331 of the corresponding spacer block 332 and a second clamping block 342 extending downward from the bearing surface 331 of the corresponding projection 333.
  • the second projection block 342 matches the shape of the primary air inlet 121, and the orthographic projections of the first projection block 341 and the second projection block 342 on the upper surface 3111 are substantially symmetrical about the center line CL5.
  • the first clamping block 341 includes a first limiting side surface 3411 far from the second clamping block 342 and mating with the arc-shaped wall 125 and two first limiting planes 3412 mating with the two-plane planar side wall 124.
  • the second clamping block 342 includes a second limiting side 3421 far from the first clamping block 341 and mating with the arc-shaped wall 125.
  • the width of the first clamping block 341 (the distance between the two first limiting planes 3412 on both sides) matches the width of the primary air inlet 121 (the distance between the two straight edges 122).
  • the width of the first clamping block 341 is slightly less than one time. The width of the air inlet 121.
  • the fire cover 40 is substantially in the shape of a ring, and includes a fire cover outer contour 41 corresponding to the outer edge 3113 and a fire cover inner contour 42 corresponding to the inner edge 3114.
  • the nozzle 20 When assembling the components of the burner 100, the nozzle 20 is fixed to the nozzle holder 16 through the external thread of the connecting portion 22 and the internal thread of the nozzle mounting portion 163, and then the ignition needle 50 and the thermocouple 60 are respectively mounted on the support surface 11
  • the fire splitter 30 is positioned on the ignition pin 50 and the thermocouple 60 through the first positioning through-hole 31183 and the second positioning through-hole 31184, respectively, and is then mounted on the bottom cup 10
  • the ejection pipe 32 is located in the primary air reaching chamber 12.
  • the fire cover 40 is installed on the flame splitter 30 and covers the mixed gas tank 314.
  • the first clamping block 341 and the second clamping block 342 are nested in the primary air reaching chamber 12, the nozzle 20 is directly opposite the gas inlet 321, and the spacer 33 is spaced apart from the lower surface 3112 and the support surface 11 so that the air can be removed from
  • the gap 70 (see FIGS. 12 and 13) between the lower surface 3112 and the support surface 11 enters the primary air to reach the chamber 12, and can reach the outside of the inner edge sidewall 313 through the secondary air passage 3117 to provide air to the fire orifice.
  • the shielding portion 3118 completely shields the primary air from reaching the primary air inlet 121 of the chamber 12.
  • the ignition needle 50 and the thermocouple 60 are disposed in the vicinity of the middle of the burner 100. In this way, the user is prevented from damaging the ignition needle 50 and the thermocouple 60 due to possible collision during use.
  • the ejection tube 32 is in communication with the second mixed gas tank 3142 of the body 31.
  • the ejection tube 32 can use the principle of the Venturi effect to speed up the flow rate of the gas, increase the rate of gas discharge, and quickly transport the mixed gas to the second mixture.
  • the gas tank 3142 since the radial width of the second mixed gas groove 3142 is larger than the radial width of the first mixed gas groove 3141, when the burner 100 is operating, it can buffer the airflow ejected from the ejection pipe 32, which is beneficial to reduce the The impact caused by the flame of the two mixed gas tanks 3142 makes the flame of the body 31 more uniform.
  • the fire splitter 30 is positioned on the ignition pin 50 and the thermocouple 60 through the first positioning through hole 31183 and the second positioning through hole 31184 of the shielding portion 3118 and is mounted on the bottom cup 10.
  • the existing parts of the burner 100 are used for auxiliary positioning, which is beneficial to reducing the number of parts of the burner 100.
  • the shielding portion 3118 is located above the primary air inlet 121, which can effectively block debris from falling into the primary air reaching the chamber 12, avoiding the blockage of the primary air reaching the chamber 12, and is also beneficial to the burner 100 after use. Easy to clean. Since the body portion 31181 in the shielding portion 3118 is mainly used for shielding debris and positioning, the thickness of the body portion 31181 may be appropriately smaller than the thickness of the partition plate 311 to save material.
  • the flame splitter 30 is placed on the support surface 11 of the bottom cup 10 through the spacer 33.
  • the spacer portion 33 has a simple structure and is provided integrally with the flame splitter 30, which is beneficial to reduce the number of parts of the burner 100, shorten the assembly time, and improve production efficiency.
  • the arc length dimension of the spacer block 332 is larger than the arc length dimension of the convex block 333, the two ends of the spacer block 332 and the center point of the convex block 333 approximately form a triangle-shaped stable structure, so that the bottom cup 10 can more smoothly carry the branch.
  • the firearm 30 also helps reduce the size of the bump 333 and saves material costs.
  • the first clamping block 341 and the second clamping block 342 are nested in the primary air reaching chamber 12, and the first limiting side 3411 of the first clamping block 341 defines the left side of the firearm 30 on the bottom cup 10 in the horizontal direction.
  • the two first limiting planes 3412 on both sides of the first clamping block 341 define the forward and backward movement of the firearm 30 on the bottom cup 10 in the horizontal direction.
  • the first limiting planes 3412 on both sides of the first clamping block 341 are moved.
  • the vertical rotation of the fire splitter 30 is also limited.
  • the second limiting side 3421 of the second clamping block 342 defines the rightward movement of the firearm 30 on the bottom cup 10 in the horizontal direction.
  • first clamp block 341 and the second clamp block 342 together limit the horizontal movement of the firearm 30 on the bottom cup 10, and the first clamp block 341 and the second clamp block 342 have a simple structure and are integrated with the firearm 30. It is beneficial to reduce the number of parts of the burner 100, shorten the assembly time, and improve production efficiency. In addition, matching the first clamping block 341 and the second clamping block 342 with the primary air inlet 121 of the primary air reaching the chamber 12 eliminates the need to newly set other limiting grooves on the bottom cup 10, which is beneficial to simplifying the structure of the bottom cup 10, The manufacturing steps of the bottom cup 10 are reduced, and the production cost is reduced.
  • front and “rear” in FIG. 2 correspond to the directions of the vertical paper facing inward and vertical paper facing outward in FIG. 4, and “left” and “right” respectively correspond to the left in the horizontal direction in FIG. 4. And to the right in the horizontal direction.
  • the nozzle holder 16 is connected to a gas source (not shown) through an external connection portion 161, and the gas source is injected through the nozzle 20 directly opposite the gas inlet 321 of the ejection pipe 32, and the gas stream
  • the negative pressure is formed in the area near the second pipe section 324 in the ejection pipe 32, and the air that has reached the inside of the chamber 12 is drawn into the ejection pipe 32, and the gas and air are ejected from the gas outlet 322 after the ejection pipe 32 is mixed
  • the sprayed mixed gas is filled in the mixed gas tank 314 of the body 31 and sprayed from the fire hole of the body 31. After the electronic ignition of the ignition pin 50, the mixed gas is burned to form a flame ring for the user to cook food.
  • the thermocouple 60 can interrupt the gas transmission to avoid danger.
  • the thermal efficiency is low, and it is difficult to meet the requirements of the high-power burner 100.
  • the burner 100 according to the embodiment of the invention is placed horizontally (as shown in FIG. 4), for example, the bottom cup 10 of the burner 100 is placed horizontally on the bezel of a gas stove (not shown) ), The ejection tube 32 is disposed inclined relative to the horizontal direction.
  • the length of the ejection pipe 32 can be extended without changing the height and lateral dimensions of the burner 100, and the ejection ability of the ejection pipe can be enhanced, so that gas and air can pass through the ejection pipe 32
  • the intermediate mixing is more sufficient, so that the combustion of the gas is more sufficient, and the content of carbon monoxide is lower, which effectively improves the thermal efficiency of the burner 100 and is beneficial to be applied to the high-power burner 100.
  • the included angle between the ejection tube 32 and the horizontal direction is 26 ° -50 °.
  • the included angle between the ejection tube 32 and the horizontal direction is too large, the length of the ejection tube 32 is short and the ejection distance of the ejection tube 32 is short. Restricted, the injection effect is poor, it is difficult to meet the requirements of the high-power burner 100; or if the length of the ejection tube 32 and the height of the burner 100 are not changed, if the ejection tube 32 and the horizontal If the included angle is too small, the lateral dimension of the burner 100 is too large, which is not conducive to miniaturization of the burner 100.
  • Table 1 shows the relationship between the size of the angle between the ejection tube 32 and the horizontal direction and the increase ratio of the radial length of the gas outlet 322. Among them, the size of the included angle is negatively correlated with the growth ratio, and the smaller the included angle, the growth ratio increases exponentially.
  • the radial length of the gas outlet 322 becomes longer and increases exponentially, even exceeding the radial direction of the body 31 Size or the lateral dimension of the burner 100, it is easy to increase the difficulty in manufacturing; or if the length of the ejection tube 32 and the size of the orifice are unchanged, if the included angle between the ejection tube 32 and the horizontal direction is too small, The longer the radial length of the gas outlet 322 and the exponential growth, in order to ensure that the gas outlet 322 is located in the mixed gas tank 314, the radial size of the body 31 needs to be increased to the same degree. However, the oversized body 31 is not conducive to it. The miniaturization of the burner 100 also increases the manufacturing cost.
  • the included angle between the ejection pipe 32 and the horizontal direction is 26 ° -50 °, it is possible to reduce the manufacturing difficulty and production cost of the burner 100 even when the miniaturization of the burner 100 is favorable.
  • the ejection pipe 32 communicates with the second mixed gas tank 3142 of the body 31, after the mixed gas is ejected from the gas outlet 322, it is easy to cause an impact on the flame near the gas outlet 322, and the longer the radial length of the gas outlet 322 is The smaller the impact force of the mixed gas after being ejected, the radial length of the gas outlet 322 can be increased by appropriately adjusting the inclination angle of the ejection tube 32, which is beneficial to the flame of the body 31 being more uniform.
  • the body 31 includes a partition plate 311.
  • the body 31 is formed with at least two mixed gas grooves 314, and at least two mixed gas grooves 314 are located on the partition plate 311.
  • 32 is connected to the partition plate 311 and penetrates the portion of the partition plate 311 corresponding to the at least two mixed gas tanks 314 respectively so as to directly communicate with the at least two mixed gas tanks 314 respectively.
  • the ejection pipe 32 is formed with a gas inlet 321 and a gas outlet 322 communicating with the gas inlet 321.
  • the gas outlet 322 is connected to at least two mixed gas tanks 314 at the same time.
  • the ejection pipe 32 is used to mix the gas and primary air entering from the gas inlet 321.
  • the mixed gas is sprayed from the gas outlet 322.
  • the structure of the burner 100 can be simplified and the cost can be reduced.
  • the gas outlet 322 of the ejection pipe 32 is directly connected to at least two mixed gas tanks 314, which can prevent the mixed gas ejected from the ejection pipe 32 from causing over-atmosphere to the flame of a single mixed gas tank 314, which is conducive to flow impact and is beneficial for separation.
  • the flame of the firearm 30 is more uniform.
  • the partition plate 311 is substantially disc-shaped.
  • At least two mixed gas grooves 314 include a substantially circular inner ring mixed gas groove 82 and a substantially circular ring and the inner ring.
  • the mixed gas tank 82 is an outer ring mixed gas tank 81 provided substantially coaxially, and the outer ring mixed gas tank 81 surrounds the inner ring mixed gas tank 82.
  • the flame splitter includes a conduction channel 83 and a mixed gas reaching groove 3119.
  • the conduction channel 83 is formed on the partition plate 311 and communicates with the inner ring mixed gas groove 82 and the outer ring.
  • the mixed gas tank 81, the mixed gas reaching tank 3119 is formed from the partition 311 corresponding to the outer ring mixed gas tank 81 and the connecting portion of the ejection pipe 32, and the mixed gas reaches the tank 3119 and the conduction channel 83 and the outer ring mixed gas tank 81 Connected.
  • the ejection pipe 32 it is advantageous for the ejection pipe 32 to directly communicate with the inner ring mixed gas tank 82 and the outer ring mixed gas tank 81 through the conduction channel 83, so that the mixed gas can be simultaneously sent to the inner ring mixed gas tank 82 and the outer ring mixed gas tank 81.
  • the mixed gas reaching groove 3119 can further buffer the airflow ejected from the ejection pipe 32, which is beneficial to reduce the impact on the flame and make the flame of the flame splitter 30 more uniform.
  • the ejection pipe 32 is further formed with an inner ring inlet 3221 communicating with the inner ring mixed gas tank 82 and an outer ring inlet 3222 communicating with the outer ring mixed gas tank 81.
  • the area of the inner ring inlet 3221 is smaller than the outer ring inlet 3222 area.
  • the body 31 is formed with at least two mixed gas grooves 314, and the number of the ejection tubes 32 is at least two.
  • Each ejection tube 32 is disposed below the body 31 and In communication with a corresponding one of the mixed gas tanks 314, when the burner 100 is placed horizontally, the angle between the at least two ejection tubes 32 and the horizontal direction is 26 ° -50 °.
  • the length of the at least two ejection tubes 32 can be extended without increasing the height and lateral dimensions of the burner 100, and the ejection tubes 32 can be enhanced.
  • the ejection capacity makes the gas and air more fully mixed in the ejection pipe 32, so that the gas is burned more fully, and the content of carbon monoxide is lower, which effectively improves the thermal efficiency of the burner 100 and is beneficial to apply to high-power burners 100, and setting the proper inclination angle of the ejection tube 32 can reduce the manufacturing difficulty and production cost of the burner 100 under the condition that it is beneficial to the miniaturization of the burner 100.
  • the body 31 is formed with at least two mixed gas grooves 314, and the number of ejection tubes 32 is at least two.
  • Each ejection tube 32 is disposed below the body 31 and It communicates with a corresponding mixed gas tank 314.
  • the angle between at least one of the at least two ejection tubes 32 and the horizontal direction is 26 ° -50 °, and at least one ejection tube
  • the tube 32 is substantially perpendicular to the horizontal direction.
  • the ejection pipe 32 is in communication with the mixed gas tank 314 and a gas outlet 323 is formed at the communication point.
  • the mixed gas is transported from the ejection pipe 32 into the mixed gas tank 314 through the gas outlet 323.
  • the gas outlet 323 formed in the mixed gas tank 314 by the horizontally inclined ejection tube 32 is substantially oval
  • the gas outlet 323 formed in the mixed gas tank 314 by the vertical ejection tube 32 is substantially circular. shape.
  • the inclined ejection tube 32 can extend the length of the ejection tube 32 without changing the height and lateral dimensions of the burner 100, and enhance the ejection capability of the ejection tube 32, so that the gas and the The air is more fully mixed in the ejection tube 32, so that the gas is burned more fully, and the content of carbon monoxide is lower, which effectively improves the thermal efficiency of the burner 100.
  • the vertical ejection tube 32 can be used for auxiliary heating to meet the mixed gas tank. In the case of the required ejection capability of 314, the material of the ejection tube 32 can also be saved, and the manufacturing difficulty on the flame splitter 30 can be reduced.
  • the body 31 includes a substantially circular partition 311, and the partition 311 is provided with a first side wall 84, a second side wall 85, and a first side wall which are substantially circular.
  • Three side walls 86, at least two mixed gas grooves 314 include a first mixed gas groove 3141 defined by the first side wall 84 and the second side wall 85 to form a substantially annular shape, and a third side wall 86 defined to form a substantially
  • At least two ejection tubes 32 in the circular second mixed gas tank 3142 include an outer ejection tube 326 in direct communication with the first mixed gas tank 3141 and an inner ejection tube 327 in direct communication with the second mixed gas tank 3142.
  • the bottoms of cooking cookers such as pans, deep pans, soup pots and the like are mostly circular, and the first mixed gas tank 3141 having a substantially annular shape and the second mixed gas tank 3142 having a substantially circular shape are provided to form the body 31.
  • the flame ring matches the round bottom of the cooking cooker, so that the cooking cooker is better heated.
  • the shape of the partition plate 311 can also be oval.
  • the shape of the first mixed gas tank 3141 can also be oval
  • the shape of the second mixed gas tank 3142 can also be oval.
  • the outer ejection tube 326 communicates with the first mixed gas tank 3141 separately and directly, and forms a first gas outlet 3231 in the first mixed gas tank 3141, and the inner ejection tube 327 communicates with the second mixed gas tank 3142 separately and directly, A second gas outlet 3232 is formed in the second mixed gas tank 3142. In this way, the mixed gas supply of the first mixed gas tank 3141 and the second mixed gas tank 3142 can be prevented from interfering with each other.
  • the body 31 includes a substantially circular partition plate 311, and the partition plate 311 is provided with a first side wall 84, a second side wall 85, and a first side wall each having a substantially annular shape.
  • Three side walls 86, at least two mixed gas grooves 314 include a first mixed gas groove 3141 defined by the first side wall 84 and the second side wall 85 to form a substantially annular shape, and a third side wall 86 defined to form a substantially
  • At least two ejection tubes 32 in the circular second mixed gas tank 3142 include an outer ejection tube 326 in direct communication with the first mixed gas tank 3141 and an inner ejection tube 327 in direct communication with the second mixed gas tank 3142.
  • the included angle between the outer ejection tube 326 and the horizontal direction is 26 ° -50 °, and the inner ejection tube 327 is substantially perpendicular to the horizontal direction.
  • the first mixed gas tank 3141 is generally used as the main firepower of the burner 100 and needs to generate more flame or heat, so the outer ejection tube 326 is set to an angle between 15 ° and 75 ° with the horizontal direction. , The length of the outer ejection tube 326 can be prolonged, and the ejection capability of the outer ejection tube 326 can be enhanced, thereby effectively increasing the firepower generated by the first mixed gas tank 3141.
  • the second mixed gas tank 3142 is used for auxiliary heating, and the generated flame or heat is relatively small, so the inner ejection tube 327 is set to be substantially perpendicular to the horizontal direction. When the second mixed gas tank 3142 is satisfied, it can also save Material of the inner ejection tube 327.
  • the nozzle of the inner ejection tube 327 is also formed together, which eliminates the need for a core drawing process, which can further simplify the manufacture of the flame splitter 30 process.
  • an included angle between the outer ejection tube 326 and the horizontal direction is smaller than an included angle between the inner ejection tube 327 and the horizontal direction.
  • the first mixed gas tank 3141 is generally used as the main firepower of the burner 100, and needs to generate more flame or heat, and the second mixed gas tank 3142 is used for auxiliary heating, and the generated flame or heat is relatively small.
  • the angle between the outer ejection tube 326 and the horizontal direction By appropriately reducing the angle between the outer ejection tube 326 and the horizontal direction, the length of the outer ejection tube 326 can be extended, the ejection capability of the outer ejection tube 326 can be enhanced, and the first mixed gas can be effectively improved. Firepower generated by slot 3141.
  • the outer ejection tube 326 includes a buffer portion 3211 penetrating the partition plate 311 and formed with the second side wall 85.
  • the buffer portion 3211 bulges in the direction of the third side wall 86.
  • the buffer portion 3211 can expand the first gas outlet 3231 formed in the outer mixed gas tank 311 by the outer ejection tube 326, which is beneficial to reduce the ejection resistance of the outer ejection tube 326.
  • the buffer portion 3211 can expand the first gas outlet 3231 formed in the outer mixed gas tank 311 by the outer ejection tube 326, which is beneficial to reduce the ejection resistance of the outer ejection tube 326.
  • the mixed gas is ejected from the first gas outlet 3231, it is easy to cause an impact on the flame near the first gas outlet 3231.
  • the bulging degree of the buffer portion 3211 is set according to actual conditions, and is not limited herein.
  • the burner 100 includes a bottom cup 10.
  • the bottom cup 10 includes a support surface 11 and a self-supporting surface 11.
  • the primary air reaching cavity is opened downward in the height direction of the bottom cup 10.
  • the fire splitter 30 is installed in the bottom cup 10 and the outer ejection pipe 326 and the inner ejection pipe 327 are located in the primary air reaching the chamber 12.
  • the bottom cup 10 includes an outer ring intake pipe 19, an inner ring intake pipe 17 and a guide
  • the through pipe 18, the outer ring intake pipe 19 and the inner ring intake pipe 17 all extend until the primary air reaches the chamber 12 and faces the ejection pipe 326 and the inner ejection pipe 327, respectively. It communicates with the outer ring air intake pipe 19 and the inner ring air intake pipe 17 respectively.
  • the conduction pipe 18 communicates with the outer ring air intake pipe 19 and the inner ring air intake pipe 17, which is beneficial to realize the single or dual channel air intake mode of the burner 100.
  • the first air inlet of the conduction pipe 18 is connected to a gas source (not shown), and the second air inlet of the inner ring air pipe 17 is blocked, and the gas source passes through the air guide.
  • the through pipe 18 can be delivered to the outer ring intake pipe 19 and the inner ring intake pipe 17 respectively.
  • the dual-channel air intake method is adopted, the conduction pipe 18 and the inner ring intake pipe 17 are not connected, and the first intake port of the conduction pipe 18 and the second intake port of the inner ring intake pipe 17 may be separately connected to the gas gas. Source connected. In this way, different air intake methods can be adopted according to the actual situation, which is beneficial to realize the diversity of the air intake methods of the burner 100.
  • the combustor 100 includes an outer ring nozzle 87 and an inner ring nozzle 88
  • the bottom cup 10 includes an outer ring intake inclined pipe 191 located in the primary air reaching chamber 12 and communicating with the outer ring intake pipe 19 and
  • the inner ring inlet inclined pipe 162 located in the primary air reaching the chamber 12 and communicated with the inner ring inlet pipe 17
  • the outer ring nozzle 87 is installed on the outer ring inlet inclined pipe 191 and is substantially coaxial with the outer ejection pipe 326
  • the ring nozzle 88 is installed on the inner ring inlet inclined pipe 162 and is substantially coaxial with the inner ejection pipe 327.
  • the center line CL10 of the outer ring intake sloping tube 191 is substantially coaxial with the center line CL8 of the outer ejection tube 326, and the center line CL7 of the inner ring intake sloping tube 162 is substantially coaxial with the center line CL9 of the inner ring ejection tube 32. .
  • An embodiment of the present invention further provides a cooking stove.
  • the cooking stove includes a burner 100.
  • the burner 100 includes a fire splitter 30.
  • the fire splitter 30 includes a body 31 and at least one ejection tube 32.
  • the body 31 is formed with a mixed gas tank 314.
  • At least one ejection tube 32 is disposed below the body 31 and communicates with the mixed gas tank 314.
  • the included angle is 26 ° -50 °.
  • the length of the ejection tube 100 can be extended without changing the height and lateral dimension of the burner 100, and the ejection capacity of the ejection tube 100 can be enhanced, so that the gas and The air is more fully mixed in the ejector tube, so that the gas is burned more fully, the content of carbon monoxide is lower, the thermal efficiency of the burner 100 is effectively improved, it is beneficial to apply to high-power burners, and the proper tilt of the ejection tube is set The angle can reduce the manufacturing difficulty and production cost of the burner 100 under the condition that the burner 100 is miniaturized.
  • the burner 100 includes a fire splitter 30.
  • the fire splitter 30 includes a body 31 and an ejection tube 32.
  • the body 31 is formed with a mixed gas groove 314, and the ejection tube 32 is disposed below the body 31. And it is in communication with the mixed gas tank 314.
  • the ejection tube 32 is arranged obliquely relative to the horizontal direction, and the included angle between the ejection tube 32 and the horizontal direction is 26 ° -50 °.
  • the length of the ejection tube 32 can be extended and the ejection ability of the ejection tube 32 can be enhanced without changing the height and lateral dimensions of the burner 100.
  • the gas and air are more fully mixed in the ejection pipe 32, so that the combustion of the gas is more sufficient, the content of carbon monoxide is lower, the thermal efficiency of the burner 100 is effectively improved, it is beneficial to apply to a high-power burner, and the ejection is set
  • the proper inclination angle of the tube 32 can reduce the manufacturing difficulty and production cost of the burner 100 under the condition that the miniaturization of the burner 100 is favorable.
  • the body 31 includes a partition 311 including a substantially circular upper surface 3111 and a substantially circular outer edge 3113 and an inner edge 3114.
  • the outer edge 3113 and the inner edge 3114 are about the top A diameter of the surface 3111 is symmetrical.
  • the inner edge 3114 includes a first inner edge 3115 that is substantially circular and a second inner edge 3116 that is substantially circular and connected to the first inner edge 3115.
  • the body 31 includes an outer edge sidewall 312 extending upward from the outer edge 3113 and an upward extending from the inner edge 3114
  • the inner edge sidewall 313 includes a first inner edge sidewall 3131 extending upward from the first inner edge 3115 and a second inner edge sidewall 3132 extending upward from the second inner edge 3116.
  • the mixed gas tank 314 The first mixed gas groove 3141 surrounded by the outer edge sidewall 312 and the first inner edge sidewall 3131 and the second mixed gas groove 3142 surrounded by the outer edge sidewall 312 and the second inner edge sidewall 3132 are included.
  • the second mixed gas tank 3142 increases the volume of the mixed gas tank 314, which is beneficial for the mixed gas to be more fully mixed.
  • the ejection tube 32 is in communication with the second mixed gas tank 3412.
  • the radial width of the second mixed gas tank 3142 is larger than the radial width of the first mixed gas tank 3141, when the burner 100 is operating, it can buffer the airflow ejected from the ejection pipe 32, which is beneficial to reduce the The impact caused by the flame of the two mixed gas tanks 3142 makes the flame of the flame splitter 30 more uniform.
  • the fire splitter 30 includes a plurality of first fire orifices 3121 formed at the top of the outer edge side wall 312, and a plurality of second fire orifices 31311 formed at the top of the first inner edge side wall 3131 and A plurality of third fire orifices 31321 are formed on top of the second inner edge side wall 3132.
  • the flame splitter 30 forms an inner and outer ring flame, which is conducive to more uniform heating of the inside and outside of the cooking cooker.
  • the size of the first fire orifice 3121 is larger than the size of the second fire orifice 31311, and the size of the third fire orifice 31321 is larger than the size of the first fire orifice 3121.
  • adjusting the size of the fire orifice according to different positions can further facilitate more uniform heating inside and outside the cooking cooker.
  • the body 31 includes a shielding portion 3118 located in the inner edge 3114, and the shielding portion 3118 and the inner edge 3114 form an inner ring secondary air passage 3117 on both sides.
  • the external air can replenish the fire orifice of the inner edge 3114 through the secondary air passage 3117 of the inner ring, and the shielding portion 3118 can effectively block the sundries from falling into the primary air to reach the chamber 12 to prevent the primary air from reaching the cavity. Blockage of the chamber 12.
  • the burner 100 includes a bottom cup 10, an ignition pin 50, and a thermocouple 60.
  • the bottom cup 10 includes a support surface 11 and a self-supporting surface 11 that opens down the primary air reaching cavity along the height direction of the bottom cup 10.
  • the chamber 12 and the support surface 11 are provided with a first mounting through-hole 13 and a second mounting through-hole 14.
  • the ignition pin 50 and the thermocouple 60 are respectively installed in the first mounting through-hole 13 and the second mounting through-hole 14.
  • the first positioning through-hole 31183 and the second positioning through-hole 31184 of the shielding portion 3118, the first positioning through-hole 31183 and the second positioning through-hole 31184 are respectively positioned at the ignition pin 50 and the thermocouple 60 so that the fire splitter 30 is installed in the bottom cup 10 and the ejection tube 32 is located inside the primary air reaching chamber 12.
  • the fire splitter 30 includes a spacer 33.
  • the spacer 33 includes a spacer 332 provided on the shielding portion 3118 and a protrusion 333 provided on the ejection tube 32.
  • the support surface 11 passes through the spacer 332 and the protrusion.
  • 333 supports the flame splitter 30 and forms a gap 70 on both sides with the flame splitter 30.
  • the spacer 33 and the flame splitter 30 are integrally provided, which is beneficial to reduce the number of parts of the burner 100, shorten the assembly time, and improve production efficiency.
  • the gap 70 facilitates the replenishment of primary air to the chamber 12 through the gap 70 through the outside air.
  • the fire splitter 30 includes a limiting portion 34.
  • the limiting portion 34 includes a first clamping block 341 disposed on the spacer block 332 and a second clamping block 342 disposed on the ejection tube 32.
  • the block 341 and the second clamping block 342 together define the horizontal movement of the flame splitter 30 on the bottom cup 10.
  • the limiting portion 34 and the flame splitter 30 are integrally provided, which is beneficial to reduce the number of parts of the burner 100, shorten the assembly time, and improve production efficiency.
  • the combustor 100 includes a nozzle 20 located in the primary air reaching chamber 12, and the bottom cup 10 includes a nozzle holder 16.
  • the nozzle 20 is mounted on the nozzle holder 16 and is coaxial with the ejection tube 32.
  • the nozzle 20 it is beneficial for the nozzle 20 to spray directly toward the ejection pipe 32 and enhance the ejection ability.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

一种燃烧器(100)和烹饪灶具。燃烧器(100)包括分火器(30)，分火器(30)包括本体(31)和至少一根引射管(32)，本体(31)形成有混合气体槽(314)；至少一根引射管(32)设置在本体(31)下方且与混合气体槽(314)连通，当燃烧器(100)水平放置时，至少一根引射管(32)相较于水平方向倾斜设置，至少一根引射管(32)与水平方向之间的夹角为26°-50°。

Description

燃烧器和烹饪灶具
优先权信息
本发明请求2018年09月03日向中国国家知识产权局提交的、专利申请号为201811020444.6、201821443534.1、201811020441.2、201821443509.3、201811019301.3、201821444351.1、201811019302.8和201821443508.9的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本发明涉及家用灶具领域，特别涉及一种燃烧器和烹饪灶具。
背景技术
相关技术中的燃烧器采用引射管混合燃气和空气，引射管一般水平或者竖直设置，引射管的长度受限，从而导致引射距离受限，可能导致引射不足，燃气和空气混合不充分，容易导致混合气体燃烧时产生较多的一氧化碳，热效率较低，难以满足大功率的燃烧器的要求。
发明内容
有鉴于此，本发明的实施方式提供了一种燃烧器和烹饪灶具。
本发明实施方式的燃烧器包括分火器，所述分火器包括本体和至少一根引射管，所述本体形成有混合气体槽；所述至少一根引射管设置在所述本体下方且与所述混合气体槽连通，当所述燃烧器水平放置时，至少一根所述引射管相较于水平方向倾斜设置，至少一根所述引射管与所述水平方向之间的夹角为26°-50°。
本发明实施方式还提供了一种烹饪灶具，所述烹饪灶具包括燃烧器，所述燃烧器包括分火器，所述分火器包括本体和至少一根引射管，所述本体形成有混合气体槽；所述至少一根引射管设置在所述本体下方且与所述混合气体槽连通，当所述燃烧器水平放置时，至少一根所述引射管相较于水平方向倾斜设置，至少一根所述引射管与所述水平方向之间的夹角为26°-50°。
本发明实施方式的燃烧器和烹饪灶具通过倾斜设置引射管，可以在燃烧器高度和横向尺寸不变的情况下延长引射管的长度，增强引射管的引射能力，使燃气和空气在引射管中混合更加充分，从而使得燃气燃烧更加充分，一氧化碳的含量更低，有效地提高燃烧器的热效率，有利于应用于大功率的燃烧器，并且设置引射管适当的倾斜角度能够在有利于燃 烧器小型化的情况下，亦能降低燃烧器的制造难度和生产成本。
本发明的实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实施方式的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本发明实施方式的燃烧器的立体示意图；
图2是本发明实施方式的燃烧器的俯视示意图；
图3是图1的燃烧器沿III-III线的剖面示意图；
图4是图2的燃烧器沿IV-IV线的剖面示意图；
图5是本发明实施方式的底杯的立体示意图；
图6是本发明实施方式的底杯的截面示意图；
图7是本发明实施方式的喷嘴的立体示意图；
图8是本发明实施方式的分火器的立体示意图；
图9是本发明实施方式的分火器的另一立体示意图；
图10是本发明实施方式的分火器的又一立体示意图；
图11是本发明实施方式的火盖俯视示意图；
图12是图1的燃烧器沿XII-XII线的剖面示意图；
图13是图2的燃烧器沿XIII-XIII线的剖面示意图；
图14是本发明另一实施方式的燃烧器的立体示意图；
图15是图14的燃烧器沿XV-XV线的剖面示意图；
图16是本发明另一实施方式的分火器的立体示意图；
图17是图16的分火器沿XVII-XVII线的剖面示意图；
图18是本发明又一实施方式的燃烧器的立体示意图；
图19是图18的燃烧器沿IXX-IXX线的剖面示意图；
图20是图18的燃烧器沿XX-XX线的剖面示意图；
图21是本发明另一实施方式的分火器的立体示意图；
图22是图18的燃烧器沿IXX-IXX线的另一实施方式的剖面示意图；
图23是本发明又一实施方式的分火器的立体示意图；
具体实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“长度”、“宽度”、“厚度”、“边缘”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”、“多根”的含义是指数量两个或两个以上，除非另有明确具体的限定。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请一并参阅图1至图4，本发明的实施方式的燃烧器100可用于烹饪灶具，例如用于家用燃气灶(图未示)上。使用时，燃烧器100可以如图4所示水平放置、安装在燃气灶上，并与燃气气源连接，使燃气通过燃烧器100点燃燃烧，进行烹饪。
燃烧器100包括底杯10、喷嘴20、分火器30、火盖40、点火针50和热电偶60。
请一并参阅图5和图6，在本实施方式中，底杯10可采用铸铁或者铸铝或者铸铜等材料制成，并基本呈圆杯状。底杯10包括支撑面11，支撑面11基本呈圆形且当燃烧器100可以如图4所示水平放置时位于底杯10的顶部。
底杯10自支撑面11沿底杯10的高度方向(即图4中的竖直方向)向下形成一次空气到达腔室12。一次空气到达腔室12基本呈柱状，并贯穿支撑面11形成一次空气进口121。一次空气进口121关于支撑面11的一条中心线CL1(或者说支撑面11中与中心线CL1平行的直径)对称，并形成两条与中心线CL1基本平行的直边122和连接两条直边122的两条圆弧边123。两条圆弧边123基本落在同一个圆且两条圆弧边123所在的圆与支撑面11所在的圆基本同心。
一次空气进口121的宽度(两条直边122之间的距离)与支撑面11的直径的长度之比 在1/2到1/4之间，一次空气进口121的长度(两条圆弧边123截取中心线CL1的长度)与支撑面11的直径的长度之比在3/5到9/10之间，也即是一次空气进口121为长条状。一次空气到达腔室12形成有与两条直边122对应的平面侧壁124、与两条圆弧边123对应的圆弧壁125和连接平面侧壁124和圆弧壁125的底面126。平面侧壁124和圆弧壁125与支撑面11基本垂直，底面126与支撑面11基本平行。
如此，一次空气到达腔室12形状规则，底杯10方便成型、制造。
底杯10自支撑面11沿底杯10的高度方向向下形成有第一安装通孔13和第二安装通孔14。第一安装通孔13和第二安装通孔14的中心关于中心线CL1对称且位于一次空气到达腔室12的两侧，经过第一安装通孔13和第二安装通孔14的中心的直线靠近支撑面11所在的圆的圆心位置。
底杯10还包括外圆周侧面15并在一个圆弧壁125靠近底面126的位置形成有贯穿外圆周侧面15和对应的圆弧壁125的喷嘴座16。喷嘴座16呈通孔管状，贯穿底杯10的外部和一次空气达到腔室12。
喷嘴座16自外部向一次空气到达腔室12内部依次形成有相互连通的外连接部161、连通部162和喷嘴安装部163。外连接部161位于底杯10外部，喷嘴安装部163位于一次空气到达腔室12内。外连接部161与连通部162基本同轴，且外连接部161和连通部162的中心线CL2与支撑面11基本平行且在支撑面11上的正投影落在中心线CL1上，外连接部161的外轮廓为六面柱体，内轮廓为圆通孔，连通部162的内轮廓为圆通孔且直径比外连接部161的内轮廓小。喷嘴安装部163的中心线CL3在支撑面11上的正投影也落在中心线CL1上，但相较于且外连接部161和连通部162的中心线CL2倾斜设置。喷嘴安装部163的内轮廓形成有内螺纹(图未示)。
请一并参阅图7，在本实施方式中，喷嘴20基本呈通孔管状，并包括头部21和自头部21基本同轴延伸出来的连接部22，头部21包括基本正六边柱状的外轮廓，连接部22的外轮廓与喷嘴安装部163的内轮廓对应，例如连接部22的外轮廓略大于喷嘴安装部163的内轮廓。连接部22包括基本呈圆柱状且设置有外螺纹的外轮廓，喷嘴20形成有自连接部22远离头部21一端、沿喷嘴20的中心线CL4方向延伸、贯穿连接部22和头部21形成的锥孔23，锥孔23形成有位于连接部22的喷嘴进口24和位于头部21的喷嘴出口25。
请一并参阅图8至图10，在本实施方式中，分火器30可以采用铸铁或者铸铝或者铸铜等材料制成，并包括本体31和引射管32。
本体31包括基本呈圆盘状的隔板311，隔板311包括上表面3111和与上表面3111相背的下表面3112。当燃烧器100可以如图4所示水平放置时，上表面3111位于隔板311的顶部且与水平方向基本平行，而下表面3112位于隔板311的下部且与水平方向基本平行。
上表面3111包括基本呈圆形的外边缘3113和内边缘3114，内边缘3114包括基本为优弧段的第一内边缘3115和与第一内边缘3115连接且基本为劣弧段的第二内边缘3116。第一内边缘3115所在的圆与外边缘3113所在的圆基本同心，第二内边缘3116所在的圆与外边缘3113所在的圆内内切。外边缘3113所在的圆的直径大于第一内边缘3115所在的圆的直径，而第一内边缘3115所在的圆的直径大于第二内边缘3116所在的圆的直径。外边缘3113所在的圆的圆心、第一内边缘3115所在的圆的圆心和第二内边缘3116所在的圆的圆心基本落在外边缘3113的中心线CL5上。
如此，内边缘3114呈鱼嘴形，可以提高燃烧器100外观的观赏性。
隔板311在内边缘3114内形成两个内环二次空气通道3117，从而剩下遮挡部3118。两个内环二次空气通道3117分别位于中心线CL5两侧，并关于中心线CL5对称。内环二次空气通道3117基本呈圆形扇区状并与部分第一内边缘3115和部分第二内边缘3116对齐。内环二次空气通道3117的弧长所对应的角度在60度到90度之间。如此，遮挡部3118包括身部31181和尾部31182。
身部31181基本呈圆形，并与第二内边缘3116连接。身部31181形成有与第一安装通孔13和第二安装通孔14分别对应的第一定位通孔31183和第二定位通孔31184，也即是，第一定位通孔31183和第二定位通孔31184的中心位于中心线CL5的两侧且关于中心线CL5对称，经过第一定位通孔31183和第二定位通孔31184的中心的直线靠近隔板311所在的圆的圆心位置。
尾部31182连接着身部31181和第一内边缘3115，并且在垂直于中心线CL5方向上的尺寸自身部31181朝第一内边缘3115逐渐增大。
如此，遮挡部3118呈鱼形，例如身部31181仿似鱼身，尾部31182仿似鱼尾，第一定位通孔31183和第二定位通孔31184仿似鱼眼，如此可以提升整体外观。
本体31包括自外边缘3113向上延伸的外边缘侧壁312和自内边缘3114向上延伸的内边缘侧壁313。内边缘侧壁313包括自第一内边缘3115向上延伸的第一内边缘侧壁3131和自第二内边缘3116向上延伸的第二内边缘侧壁3132。外边缘侧壁312和内边缘侧壁313等高，并共同限定混合气体槽314。对应的，混合气体槽314包括由外边缘侧壁312与第一内边缘侧壁3131共同界定的第一混合气体槽3141和由外边缘侧壁312与第二内边缘侧壁3132共同界定的第二混合气体槽3142。第一混合气体槽3141基本呈环状，而第二混合气体槽3142基本呈圆形，第一混合气体槽3141的两端与第二混合气体槽3142连通。
外边缘侧壁312的顶部形成有多个第一火孔口3121，第一火孔口3121沿外边缘侧壁312的圆周方向分布且沿外边缘侧壁312的径向贯穿外边缘侧壁312。第一内边缘侧壁3131的顶部形成有多个第二火孔口31311，第二火孔口31311沿第一内边缘侧壁3131的圆周方 向分布且沿第一内边缘侧壁3131的径向贯穿第一内边缘侧壁3131。第二内边缘侧壁3132的顶部形成有多个第三火孔口31321，第三火孔口31321沿第二内边缘侧壁3132的圆周方向分布且沿第二内边缘侧壁3132的径向贯穿第二内边缘侧壁3132。第一火孔口3121的尺寸大于第二火孔口31311的尺寸，第三火孔口31321的尺寸大于第一火孔口3121的尺寸。
一般地，外边缘3113用于形成外环火焰，作为烹饪过程的主要火力，所需的火焰量较多，内边缘3114用于形成内环火焰，用于辅助外环火焰，所以可以调整外边缘3113的火孔口的尺寸大于内边缘3114的火孔口的尺寸，但由于第二内边缘3116的弧长较短且靠近外边缘3133的圆心附近位置，为使烹饪炊具内外加热得更加均匀，可以调整第二内边缘3116的火孔口的尺寸大于外边缘3113的火孔口的尺寸。如此，根据不同的位置调整火孔口的尺寸能够进一步有利于烹饪炊具内外加热得更加均匀。
引射管32可采用铸铁或者铸铝或者铸铜等材料制成，并基本呈圆管状。引射管32形成有气体进口321和与气体进口321连通的气体出口322，引射管32用于混合从气体进口321进入的燃气和一次空气，并从气体出口喷出混合气体。气体出口322与混合气体槽314连通，用于给混合气体槽314提供混合气体。
本实施方式中，引射管32与本体31固定连接。例如，引射管32和本体31可以采用一体成型的制造工艺，引射管32和本体31可以采用模具一体成型后再通过抽芯工艺形成引射管32的管孔。一体成型的引射管32和本体31密封性较好，能够降低燃烧器100的漏气风险。
可以理解，引射管32和本体31也可以采用非一体成型的制造工艺，例如，可以在引射管32和本体31各自成型后通过焊接的方式进行组装，在此不做限定。
具体的，引射管32与隔板311固定连接并贯穿隔板311从而与混合气体槽314连通，或者说，气体出口322形成于上表面3111。当燃烧器100如图4所示水平放置时，引射管32相较于水平方向倾斜设置，或者说引射管32相较于隔板311倾斜设置并固定连接。引射管32相较于隔板311的倾斜角度与喷嘴安装部163的中心线CL3相较于支撑面11的倾斜角度基本一致，在25-60度之间，并且安装于底杯10后的引射管32与喷嘴20同轴设置。
引射管32的中心线CL6在上表面3111上的正投影与中心线CL5基本重合，且引射管32在上表面3111上的正投影基本上关于中心线CL5对称。气体进口321在上表面311上的正投影位于尾部31182内，气体出口322位于第二混合气体槽3142内，呈椭圆状，且长轴基本上落在中心线CL5上的。
引射管32自气体进口321到气体出口322包括基本同轴、相互连接、连通的第一管段323、第二管段324和第三管段325。第一管段323远离第二管段324一端形成有气体进口321，且内径朝引射管32逐渐变小。第二管段324的内径基本固定。第三管段325的内径 朝引射管32外逐渐变大，且沿中心线CL6方向的长度距离大于第二管段324的长度距离。
分火器30还包括自下表面3112向下延伸的间隔部33和自间隔部33向下延伸的限位部34。间隔部33用于间隔开支撑面11与下表面3112并包括与支撑面11对应的承靠面331，承靠面331与下表面3112间隔设置并基本相互平行，承靠面331用于限定分火器30沿竖直方向向下的移动。限位部34用于限定分火器30在支撑面11上沿水平方向的移动。
本实施方式中，间隔部33包括自对应尾部31182向下延伸的间隔块332和自第三管段325与本体31相背一侧延伸出的凸块333。限位部34包括自对应间隔块332的承靠面331向下延伸的第一卡块341和自对应凸块333的承靠面331向下延伸的第二卡块342，第一卡块341和第二卡块342与一次空气进口121的形状配合，并且第一卡块341和第二卡块342在上表面3111上的正投影基本关于中心线CL5对称。
第一卡块341包括远离第二卡块342且与圆弧壁125配合的第一限位侧面3411和与两面平面侧壁124配合的两面第一限位平面3412。第二卡块342包括远离第一卡块341且与圆弧壁125配合的第二限位侧面3421。第一卡块341的宽度(两面第一限位平面3412之间的距离)与一次空气进口121的宽度(两条直边122之间的距离)配合，第一卡块341的宽度略小于一次空气进口121的宽度。
请一并参阅图11，在本实施方式中，火盖40基本呈圆环片状，并包括与外边缘3113对应的火盖外轮廓41和与内边缘3114对应的火盖内轮廓42。
在组装燃烧器100的零件时，喷嘴20通过连接部22的外螺纹与喷嘴安装部163的内螺纹连接固定在喷嘴座16上，然后将点火针50和热电偶60分别安装于支撑面11的第一安装通孔13和第二安装通孔14中，分火器30通过第一定位通孔31183和第二定位通孔31184分别定位于点火针50和热电偶60后安装在底杯10上，并使引射管32位于一次空气到达腔室12内，最后将火盖40安装在分火器30上并覆盖混合气体槽314。
其中，第一卡块341和第二卡块342嵌套在一次空气到达腔室12内，喷嘴20与气体进口321正对，间隔部33间隔开下表面3112与支撑面11，使得空气可以从下表面3112与支撑面11之间的空隙70(参阅图12和图13)进入一次空气达到腔室12，并可以通过二次空气通道3117到达内边缘侧壁313外以给火孔口提供空气，遮挡部3118完全遮挡一次空气达到腔室12的一次空气进口121。
在本实施方式中，将点火针50和热电偶60设置在燃烧器100的中部附近区域，如此，有利于防止用户在使用过程中由于可能出现的碰撞而损坏点火针50和热电偶60。
引射管32与本体31的第二混合气体槽3142连通，如此，引射管32利用文丘里效应的原理，能够加快气体的流速，提高气体的导出速率，将混合气体快速输送到第二混合气体槽3142中。此外，由于第二混合气体槽3142的径向宽度大于第一混合气体槽3141的径 向宽度，在燃烧器100工作时，能够缓冲从引射管32喷出的气流，有利于减小对第二混合气体槽3142的火焰造成的冲击，使本体31的火焰更加均匀。
分火器30通过遮挡部3118的第一定位通孔31183和第二定位通孔31184定位于点火针50和热电偶60并安装在底杯10上。如此，不单独设置定位件而是利用燃烧器100现有的零件进行辅助定位，有利于减小燃烧器100的零件数量。此外，遮挡部3118位于一次空气进口121的上方，能够有效地遮挡杂物掉落到一次空气到达腔室12内，避免一次空气到达腔室12的堵塞，并且还有利于燃烧器100在使用后容易进行清洁。由于遮挡部3118中的身部31181主要用于遮挡杂物和定位，所以身部31181的厚度可以适当小于隔板311的厚度以节省材料。
分火器30通过间隔部33安置在底杯10的支撑面11上。如此，间隔部33结构简单且与分火器30一体设置，有利于减小燃烧器100的零件数量，缩短组装时间，提高生产效率。此外，由于间隔块332的弧长尺寸大于凸块333的弧长尺寸，间隔块332的两端点和凸块333的中心点近似形成三角形状的稳定结构，从而使底杯10更加平稳地承载分火器30，也有利于减小凸块333的尺寸，节省材料成本。
第一卡块341和第二卡块342嵌套在一次空气到达腔室12内，第一卡块341的第一限位侧面3411限定了分火器30在底杯10上沿水平方向向左的移动，第一卡块341的两面第一限位平面3412分别限定了分火器30在底杯10上沿水平方向向前和向后的移动，第一卡块341的两面第一限位平面3412还限定了分火器30沿竖直方向的转动。第二卡块342的第二限位侧面3421限定了分火器30在底杯10上沿水平方向向右的移动。
如此，第一卡块341和第二卡块342共同限定分火器30在底杯10上沿水平方向的移动，第一卡块341和第二卡块342结构简单且与分火器30一体设置，有利于减小燃烧器100的零件数量，缩短组装时间，提高生产效率。此外，将第一卡块341和第二卡块342与一次空气到达腔室12的一次空气进口121配合，无需在底杯10上重新设置其他限位槽，有利于简化底杯10的结构，减少底杯10在制造上的工艺步骤，降低生产成本。
需要说明的是，图2中的“前”和“后”分别对应图4中垂直纸面向内和垂直纸面向外的方向，“左”和“右”分别对应图4中沿水平方向向左和沿水平方向向右的方向。
综上，在燃烧器100工作时，喷嘴座16通过外连接部161连接燃气气源(图未示)，燃气气源通过喷嘴20正对着引射管32的气体进口321喷射燃气，燃气气流造成引射管32内位于第二管段324附近的区域形成负压，将一次空气到达腔室12内的空气吸入引射管32，燃气和空气在引射管32混合后从气体出口322喷出，喷出的混合气体充盈在本体31的混合气体槽314中并从本体31的火孔口喷出，经过点火针50电子点火后，混合气体燃烧形成火焰环供给用户烹饪食物。
在喷嘴20向引射管32喷射燃气的过程中，一次空气到达腔室12内的空气受到燃气气流的作用而进入引射管32后，外界环境空气能够通过空隙70一部分进入一次空气到达腔室12进行补给，另一部分通过内环二次空气通道3117对内边缘侧壁313的火孔口进行补给，外边缘侧壁312的火孔口则直接通过周围环境空气进行补给，从而使得整个燃烧器100持续地进行工作。当燃烧器100异常熄火时，热电偶60能够中断燃气的输送，避免发生危险。
当燃烧器100中的燃气和空气混合不充分时，容易导致混合气体燃烧时产生较多的一氧化碳，热效率较低，难以满足大功率的燃烧器100的要求。为提高燃烧器100的综合性能，当发明实施方式的燃烧器100水平放置(如图4所示)时，例如，将燃烧器100的底杯10水平放置在燃气灶的炉圈(图未示)中，引射管32相较于水平方向倾斜设置。
如此，通过倾斜设置引射管32，可以在燃烧器100高度和横向尺寸不变的情况下延长引射管32的长度，增强引射管的引射能力，使燃气和空气在引射管32中混合更加充分，从而使得燃气燃烧更加充分，一氧化碳的含量更低，有效地提高燃烧器100的热效率，有利于应用于大功率的燃烧器100。
在本实施方式中，引射管32与水平方向之间的夹角为26°-50°。
具体地，在燃烧器100高度和横向尺寸不变的情况下，若设置引射管32与水平方向的夹角过大，则引射管32的长度较短，引射管32的引射距离受限，喷射效果较差，难以满足大功率的燃烧器100的要求；或者在引射管32的长度和燃烧器100的高度尺寸不变的情况下，若设置引射管32与水平方向的夹角过小，则燃烧器100的横向尺寸过大，不利于燃烧器100的小型化。
请一并结合参阅表1，表1为引射管32与水平方向之间的夹角的大小和气体出口322的径向长度的增长比例的关系。其中，夹角的大小和增长比例呈负相关关系，并且夹角越小，增长比例呈指数增大。
表1
Figure PCTCN2018112325-appb-000001
在燃烧器100高度和横向尺寸不变的情况下，若设置引射管32与水平方向的夹角过小，气体出口322的径向长度越长且呈指数增长，甚至超过本体31的径向尺寸或者燃烧器100 的横向尺寸，容易增加制造上的困难；或者在引射管32的长度和孔口的尺寸不变的情况下，若设置引射管32与水平方向的夹角过小，气体出口322的径向长度越长且呈指数增长，为保证气体出口322位于混合气体槽314内，本体31的径向尺寸需要同等程度地增大，然而，尺寸过大的本体31又不利于燃烧器100的小型化，同时又增加制造的成本。
所以，当引射管32和水平方向之间的夹角为26°-50°时，能够在有利于燃烧器100小型化的情况下，亦能降低燃烧器100的制造难度和生产成本。此外，由于引射管32与本体31的第二混合气体槽3142连通，混合气体从气体出口322喷出后，容易对气体出口322附近的火焰造成冲击，而气体出口322的径向长度越长，喷出后的混合气体的冲击力越小，所以通过适当调整引射管32的倾斜角度，能够增长气体出口322的径向长度，有利于本体31的火焰更加均匀。
请参阅图14至图15，在某些实施方式中，本体31包括隔板311，本体31形成有至少两个混合气体槽314，至少两个混合气体槽314位于隔板311上，引射管32与隔板311连接并分别贯穿隔板311对应至少两个混合气体槽314的部分从而分别直接与至少两个混合气体槽314连通。引射管32形成有气体进口321和与气体进口321连通的气体出口322，气体出口322同时连接至少两个混合气体槽314，引射管32用于混合从气体进口321进入的燃气和一次空气，并从气体出口322喷出混合气体。
如此，本发明实施方式的燃烧器100相较于相关技术的燃烧器在采用一根引射管32直接与至少两个混合气体槽314连通的情况下，可以简化燃烧器100的结构，降低成本，并且将引射管32的气体出口322直接连接至少两个混合气体槽314，能够避免引射管32喷出的混合气体对单个混合气体槽314的火焰造成过大气有利于流冲击，有利于分火器30的火焰更加均匀。
请参阅图16，在某些实施方式中，隔板311基本呈圆盘状，至少两个混合气体槽314包括基本呈圆形的内环混合气体槽82和基本呈圆环状且与内环混合气体槽82基本同轴设置的外环混合气体槽81，外环混合气体槽81包围内环混合气体槽82。
如此，通过设置外环混合气体槽81和内环混合气体槽82以形成外内环火焰，有利于燃烧器100对烹饪炊具内外加热得更加均匀。
请参阅图16至图17，在某些实施方式中，分火器包括导通通道83及混合气体到达槽3119，导通通道83形成在隔板311上且连通内环混合气体槽82和外环混合气体槽81，混合气体到达槽3119自隔板311对应外环混合气体槽81和引射管32连接部分下沉而形成，混合气体到达槽3119与导通通道83和外环混合气体槽81连通。
如此，有利于引射管32通过导通通道83直接连通内环混合气体槽82和外环混合气体 槽81，从而能够将混合气体同时输送到内环混合气体槽82和外环混合气体槽81。此外，混合气体到达槽3119能够进一步缓冲从引射管32喷出的气流，有利于减小对火焰造成的冲击，使分火器30的火焰更加均匀。
在某些实施方式中，引射管32还形成有连通内环混合气体槽82的内环进口3221及连通外环混合气体槽81的外环进口3222，内环进口3221的面积小于外环进口3222的面积。
如此，能够将大部分的混合气体输送到外环混合气体槽81，能够较好地满足外环混合气体槽81所需要的混合气体量。
请参阅图18至图21，在某些实施方式中，本体31形成有至少两个混合气体槽314，引射管32的数量至少为两个，每个引射管32设置在本体31下方且与对应一个混合气体槽314连通，当燃烧器100水平放置时，至少两根引射管32与水平方向之间的夹角均为26°-50°。
如此，本实施方式的燃烧器100通过设置至少两根倾斜的引射管32，可以在燃烧器100高度和横向尺寸不变的情况下延长至少两根引射管32的长度，增强引射管32的引射能力，使燃气和空气在引射管32中混合更加充分，从而使得燃气燃烧更加充分，一氧化碳的含量更低，有效地提高燃烧器100的热效率，有利于应用于大功率的燃烧器100，并且设置引射管32适当的倾斜角度能够在有利于燃烧器100小型化的情况下，亦能降低燃烧器100的制造难度和生产成本。
请参阅图22至图23，在某些实施方式中，本体31形成有至少两个混合气体槽314，引射管32的数量至少为两个，每个引射管32设置在本体31下方且与对应一个混合气体槽314连通，当燃烧器水平放置时，至少两根引射管32中有至少一根引射管32与水平方向之间的夹角为26°-50°，且至少一根引射管32与水平方向基本垂直。
在本实施方式中，引射管32与混合气体槽314连通，并在连通处形成气体出口323，如此，混合气体通过气体出口323从引射管32输送到混合气体槽314中。其中，与水平方向倾斜的引射管32在混合气体槽314内形成的气体出口323基本呈椭圆形，与水平方向垂直的引射管32在混合气体槽314内形成的气体出口323基本呈圆形。
本实施方式的燃烧器100中，倾斜的引射管32可以在燃烧器100高度和横向尺寸不变的情况下延长引射管32的长度，增强引射管32的引射能力，使燃气和空气在引射管32中混合更加充分，从而使得燃气燃烧更加充分，一氧化碳的含量更低，有效地提高燃烧器100的热效率，而垂直的引射管32可用于辅助加热，在满足混合气体槽314所需的引射能力的情况下，亦能够节省引射管32的材料和降低分火器30上的制造困难。如此，通过倾斜和垂直的引射管32的相互搭配，有利于应用于大功率的燃烧器100，并且设置引射管32适当的倾斜角度能够在有利于燃烧器100小型化的情况下，亦能降低燃烧器100的制造难度 和生产成本。
请结合参阅图21，在某些实施方式中，本体31包括基本呈圆状的隔板311，隔板311上设置有均基本为环状的第一侧壁84、第二侧壁85和第三侧壁86，至少两个混合气体槽314包括由第一侧壁84和第二侧壁85共同限定形成基本呈环状的第一混合气体槽3141以及由第三侧壁86限定形成基本呈圆状的第二混合气体槽3142，至少两根引射管32包括与第一混合气体槽3141直接连通的外引射管326和与第二混合气体槽3142直接连通的内引射管327。
具体地，烹饪炊具例如平底锅、深锅、汤锅等底部多为圆形，通过设置基本呈环状的第一混合气体槽3141和基本呈圆状的第二混合气体槽3142，使本体31形成与烹饪炊具的圆形底部相匹配的火焰圈，从而较好地实现对烹饪炊具的加热。可以理解，隔板311的形状也可以为椭圆状，相应的，第一混合气体槽3141的形状也可以为椭圆环状，第二混合气体槽3142的形状也可以为椭圆状。
此外，外引射管326单独且直接连通第一混合气体槽3141，并在第一混合气体槽3141内形成第一气体出口3231，内引射管327单独且直接连通第二混合气体槽3142，并在第二混合气体槽3142内形成第二气体出口3232，如此，能够使第一混合气体槽3141和第二混合气体槽3142的混合气体供应互不干扰。
请结合参阅图22，在某些实施方式中，本体31包括基本呈圆状的隔板311，隔板311上设置有均基本为环状的第一侧壁84、第二侧壁85和第三侧壁86，至少两个混合气体槽314包括由第一侧壁84和第二侧壁85共同限定形成基本呈环状的第一混合气体槽3141以及由第三侧壁86限定形成基本呈圆状的第二混合气体槽3142，至少两根引射管32包括与第一混合气体槽3141直接连通的外引射管326和与第二混合气体槽3142直接连通的内引射管327。外引射管326与水平方向之间的夹角为26°-50°，内引射管327与水平方向基本垂直。
具体地，第一混合气体槽3141一般作为燃烧器100的主要火力，需要产生较多的火焰或者热量，所以将外引射管326设置为与水平方向之间的夹角为15°-75°，能够较好地延长外引射管326的长度，增强外引射管326的引射能力，从而有效地提高第一混合气体槽3141产生的火力。第二混合气体槽3142用于辅助加热，产生的火焰或者热量相对较少，所以将内引射管327设置为与水平方向基本垂直，在满足第二混合气体槽3142的情况下，亦能够节省内引射管327的材料。此外，由于内引射管327垂直于本体31，在分火器30采用模具一体成型后，内引射管327的管口也一并形成，无需采用抽芯工艺，能够进一步简化分火器30的制造过程。
请参阅图19，在某些实施方式中，外引射管326与水平方向之间的夹角小于内引射管 327与水平方向之间的夹角。
具体地，第一混合气体槽3141一般作为燃烧器100的主要火力，需要产生较多的火焰或者热量，第二混合气体槽3142用于辅助加热，产生的火焰或者热量相对较少。通过适当减小外引射管326与水平方向之间的夹角，能够较好地延长外引射管326的长度，增强外引射管326的引射能力，从而有效地提高第一混合气体槽3141产生的火力。
请结合参阅图21，在某些实施方式中，外引射管326包括贯穿隔板311且与第二侧壁85形成的缓冲部3211，缓冲部3211朝第三侧壁86的方向隆起。
具体地，缓冲部3211能够扩大外引射管326形成在外混合气体槽311内的第一气体出口3231，有利于减小外引射管326的喷射阻力。此外，混合气体从第一气体出口3231喷出后，容易对第一气体出口3231附近的火焰造成冲击，而第一气体出口3231的开口越大，面积越大，喷出后的混合气体的冲击力越小，所以通过设置缓冲部3211有利于本体31的火焰更加均匀。
需要说明的是，缓冲部3211的隆起程度根据实际情况进行设定，在此不做限定。
请参阅图19至图20，在某些实施方式中，燃烧器100包括底杯10，底杯10包括支撑面11和自支撑面11沿底杯10的高度方向向下开设的一次空气到达腔室12，分火器30安装于底杯10并使外引射管326和内引射管327位于一次空气到达腔室12内；底杯10包括外环进气管19、内环进气管17和导通管18，外环进气管19和内环进气管17均延伸至一次空气到达腔室12内并分别朝向引射管326和内引射管327，导通管18位于一次空气到达腔室12外且分别与外环进气管19和内环进气管17连通。
具体地，导通管18连通外环进气管19和内环进气管17，有利于实现燃烧器100的单、双通道进气方式。当采用单通道进气时，将导通管18的第一进气口与燃气气源(图未示)连通，内环进气管17的第二进气口进行堵塞后，燃气气源通过导通管18可分别输送到外环进气管19和内环进气管17。当采用双通道进气方式时，导通管18与内环进气管17不连通，可将导通管18的第一进气口和内环进气管17的第二进气口分别与燃气气源连通。如此，可根据实际情况采用不同的进气方式，有利于实现燃烧器100进气方式的多样性。
在某些实施方式中，燃烧器100包括外环喷嘴87和内环喷嘴88，底杯10包括位于一次空气到达腔室12内且与外环进气管19连通的外环进气斜管191和位于一次空气到达腔室12内且与内环进气管17连通的内环进气斜管162，外环喷嘴87安装于外环进气斜管191后与外引射管326基本同轴，内环喷嘴88安装于内环进气斜管162后与内引射管327基本同轴。外环进气斜管191的中心线CL10与外引射管326的中心线CL8基本同轴，内环进气斜管162的中心线CL7与内环引射管32的中心线CL9基本同轴。
如此，有利于外环喷嘴87正对着外引射管326进行喷射，内环喷嘴88正对着内引射 管327进行喷射，增强外引射管326和内引射管327的引射能力。
本发明实施方式还提供了一种烹饪灶具，烹饪灶具包括燃烧器100，燃烧器100包括分火器30，分火器30包括本体31和至少一根引射管32，本体31形成有混合气体槽314；至少一根引射管32设置在本体31下方且与混合气体槽314连通，当燃烧器100水平放置时，至少一根引射管32相较于水平方向倾斜设置，至少一根引射管32与水平方向之间的夹角为26°-50°。
本发明实施方式的烹饪灶具通过倾斜设置引射管32，可以在燃烧器100高度和横向尺寸不变的情况下延长引射管100的长度，增强引射管100的引射能力，使燃气和空气在引射管中混合更加充分，从而使得燃气燃烧更加充分，一氧化碳的含量更低，有效地提高燃烧器100的热效率，有利于应用于大功率的燃烧器，并且设置引射管适当的倾斜角度能够在有利于燃烧器100小型化的情况下，亦能降低燃烧器100的制造难度和生产成本。
为进一步辅助说明本发明的精神，以下举例说明本发明的一些实施方式。
在某些实施方式中，本发明实施方式的燃烧器100包括分火器30，分火器30包括本体31和引射管32，本体31形成有混合气体槽314，引射管32设置在本体31下方且与混合气体槽314连通，当燃烧器100水平放置时，引射管32相较于水平方向倾斜设置，引射管32与水平方向之间的夹角为26°-50°。
如此，本发明实施方式的燃烧器100通过倾斜设置引射管32，可以在燃烧器100高度和横向尺寸不变的情况下延长引射管32的长度，增强引射管32的引射能力，使燃气和空气在引射管32中混合更加充分，从而使得燃气燃烧更加充分，一氧化碳的含量更低，有效地提高燃烧器100的热效率，有利于应用于大功率的燃烧器，并且设置引射管32适当的倾斜角度能够在有利于燃烧器100小型化的情况下，亦能降低燃烧器100的制造难度和生产成本。
在某些实施方式中，本体31包括隔板311，隔板311包括包括基本呈圆形的上表面3111和基本呈圆形的外边缘3113和内边缘3114，外边缘3113和内边缘3114关于上表面3111的一根直径对称，内边缘3114包括基本呈圆形的第一内边缘3115和基本呈圆形且与第一内边缘3115连接的第二内边缘3116，第一内边缘3115所在的圆与外边缘3113所在的圆同心，第二内边缘3116所在的圆与外边缘3113所在的圆内切；本体31包括自外边缘3113向上延伸的外边缘侧壁312和自内边缘3114向上延伸的内边缘侧壁313，内边缘侧壁313包括自第一内边缘3115向上延伸的第一内边缘侧壁3131和自第二内边缘3116向上延伸的第二内边缘侧壁3132，混合气体槽314包括外边缘侧壁312和第一内边缘侧壁3131围成的第一混合气体槽3141和外边缘侧壁312和第二内边缘侧壁3132围成的第二混合气体槽3142。
如此，第二混合气体槽3142增加了混合气体槽314的体积，有利于混合气体混合得更加充分。
在某些实施方式中，引射管32与第二混合气体槽3412连通。
如此，由于第二混合气体槽3142的径向宽度大于第一混合气体槽3141的径向宽度，在燃烧器100工作时，能够缓冲从引射管32喷出的气流，有利于减小对第二混合气体槽3142的火焰造成的冲击，使分火器30的火焰更加均匀。
在某些实施方式中，分火器30包括形成在外边缘侧壁312的顶部的多个第一火孔口3121、形成在第一内边缘侧壁3131的顶部的多个第二火孔口31311和形成在第二内边缘侧壁3132的顶部的多个第三火孔口31321。
如此，分火器30形成内外环火焰，有利于烹饪炊具内外加热得更加均匀。
在某些实施方式中，第一火孔口3121的尺寸大于第二火孔口31311的尺寸，第三火孔口31321的尺寸大于第一火孔口3121的尺寸。
如此，根据不同的位置调整火孔口的尺寸能够进一步有利于烹饪炊具内外加热得更加均匀。
在某些实施方式中，本体31包括位于内边缘3114内的遮挡部3118，遮挡部3118与内边缘3114形成两侧的内环二次空气通道3117。
如此，外界空气可通过内环二次空气通道3117对内边缘3114的火孔口进行补给，并且遮挡部3118能够有效地遮挡杂物掉落到一次空气到达腔室12内，避免一次空气到达腔室12的堵塞。
在某些实施方式中，燃烧器100包括底杯10、点火针50和热电偶60，底杯10包括支撑面11和自支撑面11沿底杯10的高度方向向下开设的一次空气到达腔室12，支撑面11设置有第一安装通孔13和第二安装通孔14，点火针50和热电偶60分别安装于第一安装通孔13和第二安装通孔14，本体31包括位于遮挡部3118的第一定位通孔31183和第二定位通孔31184，第一定位通孔31183和第二定位通孔31184分别定位于点火针50和热电偶60后使分火器30安装于底杯10并使引射管32位于一次空气到达腔室12内。
如此，有利于防止用户在使用过程中由于可能出现的碰撞而损坏点火针50和热电偶60，并且利用燃烧器100现有的零件进行辅助定位，有利于减小燃烧器100的零件数量。
在某些实施方式中，分火器30包括间隔部33，间隔部33包括设置在遮挡部3118的间隔块332和设置在引射管32的凸块333，支撑面11通过间隔块332和凸块333支撑分火器30并与分火器30形成两侧的空隙70。
如此，间隔部33与分火器30一体设置，有利于减小燃烧器100的零件数量，缩短组装时间，提高生产效率。此外，空隙70有利于外界空气通过空隙70对一次空气到达腔室 12进行补给。
在某些实施方式中，分火器30包括限位部34，限位部34包括设置在间隔块332上的第一卡块341和设置在引射管32的第二卡块342，第一卡块341和第二卡块342共同限定分火器30在底杯10上沿水平方向上的移动。
如此，限位部34与分火器30一体设置，有利于减小燃烧器100的零件数量，缩短组装时间，提高生产效率。
在某些实施方式中，燃烧器100包括位于一次空气到达腔室12内的喷嘴20，底杯10包括喷嘴座16，喷嘴20安装于喷嘴座16上且与引射管32同轴设置。
如此，有利于喷嘴20正对着引射管32进行喷射，增强引射能力。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (20)

  1. 一种燃烧器，其特征在于，包括分火器，所述分火器包括：
    本体，所述本体形成有混合气体槽；和
    设置在所述本体下方且与所述混合气体槽连通的至少一根引射管，当所述燃烧器水平放置时，至少一根所述引射管相较于水平方向倾斜设置，至少一根所述引射管与所述水平方向之间的夹角为26°-50°。
  2. 如权利要求1所述的燃烧器，其特征在于，所述本体包括隔板，所述隔板包括包括基本呈圆形的上表面和基本呈圆形的外边缘和内边缘，所述外边缘和所述内边缘关于所述上表面的一根直径对称，所述内边缘包括基本呈圆形的第一内边缘和基本呈圆形且与所述第一内边缘连接的第二内边缘，所述第一内边缘所在的圆与所述外边缘所在的圆同心，所述第二内边缘所在的圆与所述外边缘所在的圆内切；
    所述本体包括自所述外边缘向上延伸的外边缘侧壁和自所述内边缘向上延伸的内边缘侧壁，所述内边缘侧壁包括自所述第一内边缘向上延伸的第一内边缘侧壁和自所述第二内边缘向上延伸的第二内边缘侧壁，所述混合气体槽包括所述外边缘侧壁和所述第一内边缘侧壁围成的第一混合气体槽和所述外边缘侧壁和所述第二内边缘侧壁围成的第二混合气体槽。
  3. 如权利要求2所述的燃烧器，其特征在于，所述引射管与所述第二混合气体槽连通。
  4. 如权利要求2所述的燃烧器，其特征在于，所述分火器包括形成在所述外边缘侧壁的顶部的多个第一火孔口、形成在所述第一内边缘侧壁的顶部的多个第二火孔口和形成在所述第二内边缘侧壁的顶部的多个第三火孔口。
  5. 如权利要求4所述的燃烧器，其特征在于，所述第一火孔口的尺寸大于所述第二火孔口的尺寸，所述第三火孔口的尺寸大于所述第一火孔口的尺寸。
  6. 如权要求4所述的燃烧器，其特征在于，所述本体包括位于所述内边缘内的遮挡部，所述遮挡部与所述内边缘形成两侧的内环二次空气通道。
  7. 如权利要求6所述的燃烧器，其特征在于，所述燃烧器包括底杯、点火针和热电偶，所述底杯包括支撑面和自所述支撑面沿底杯的高度方向向下开设的一次空气到达腔室，所述支撑面设置有第一安装通孔和第二安装通孔，所述点火针和所述热电偶分别安装于所述第一安装通孔和第二安装通孔，所述本体包括位于所述遮挡部的第一定位通孔和第二定位通孔，所述第一定位通孔和所述第二定位通孔分别定位于所述点火针和所述热电偶后使所述分火器安装于所述底杯并使所述引射管位于所述一次空气到达腔室内。
  8. 如权利要求7所述的燃烧器，其特征在于，所述分火器包括间隔部，所述间隔部包 括设置在所述遮挡部的间隔块和设置在所述引射管的凸块，所述支撑面通过所述间隔块和所述凸块支撑所述分火器并与所述分火器形成两侧的空隙。
  9. 如权利要求8所述的燃烧器，其特征在于，所述分火器包括限位部，所述限位部包括设置在所述间隔块上的第一卡块和设置在所述引射管的第二卡块，所述第一卡块和所述第二卡块共同限定所述分火器在所述底杯上沿所述水平方向上的移动。
  10. 如权利要求7所述的燃烧器，其特征在于，所述燃烧器包括位于所述一次空气到达腔室内的多个喷嘴，所述底杯包括多个喷嘴座，所述多个喷嘴分别安装于所述多个喷嘴座上且分别与所述多个引射管同轴设置。
  11. 如权利要求1所述的燃烧器，其特征在于，所述本体包括隔板，所述本体形成有至少两个混合气体槽，所述至少两个混合气体槽位于所述隔板上，所述引射管与所述隔板连接并分别贯穿所述隔板对应所述至少两个混合气体槽的部分从而分别直接与所述至少两个混合气体槽连通。
  12. 如权利要求11所述的燃烧器，其特征在于，所述隔板基本呈圆盘状，所述至少两个混合气体槽包括基本呈圆形的内环混合气体槽和基本呈圆环状且与所述内环混合气体槽基本同轴设置的外环混合气体槽，所述外环混合气体槽包围所述内环混合气体槽。
  13. 如权利要求12所述的燃烧器，其特征在于，所述分火器包括导通通道及混合气体达到槽，所述导通通道形成在所述隔板上且连通所述内环混合气体槽和所述外环混合气体槽，所述混合气体到达槽自所述隔板对应所述外环混合气体槽和所述引射管连接部分下沉而形成，所述混合气体到达槽与所述导通通道和所述外环混合气体槽连通。
  14. 如权利要求1所述的燃烧器，其特征在于，所述本体形成有至少两个混合气体槽，所述引射管的数量至少为两个，每个所述引射管设置在所述本体下方且与对应一个所述混合气体槽连通，当所述燃烧器水平放置时，所述至少两根引射管与水平方向之间的夹角均为26°-50°。
  15. 如权利要求1所述的燃烧器，其特征在于，所述本体形成有至少两个混合气体槽，所述引射管的数量至少为两个，每个所述引射管设置在所述本体下方且与对应一个所述混合气体槽连通，当所述燃烧器水平放置时，所述至少两根引射管中有至少一根所述引射管与水平方向之间的夹角为26°-50°，且至少一根所述引射管与所述水平方向基本垂直。
  16. 如权利要求14所述的燃烧器，其特征在于，所述本体包括基本呈圆状的隔板，所述隔板上设置有均基本为环状的第一侧壁、第二侧壁和第三侧壁，所述至少两个混合气体槽包括由所述第一侧壁和所述第二侧壁共同限定形成基本呈环状的外环混合气体槽以及由所述第三侧壁限定形成基本呈圆状的内环混合气体槽，所述至少两根引射管包括与所述外环混合气体槽直接连通的外引射管和与所述内环混合气体槽直接连通的内引射管，所述外 引射管与所述水平方向之间的夹角小于所述内引射管与所述水平方向之间的夹角。
  17. 如权利要求15所述的燃烧器，其特征在于，所述本体包括基本呈圆状的隔板，所述隔板上设置有均基本为环状的第一侧壁、第二侧壁和第三侧壁，所述至少两个混合气体槽包括由所述第一侧壁和所述第二侧壁共同限定形成基本呈环状的外环混合气体槽以及由所述第三侧壁限定形成基本呈圆状的内环混合气体槽，所述至少两根引射管包括与所述外环混合气体槽直接连通的外引射管和与所述内环混合气体槽直接连通的内引射管，所述外引射管与所述水平方向之间的夹角为26°-50°，所述内引射管与所述水平方向基本垂直。
  18. 如权利要求16或17所述的燃烧器，其特征在于，所述外引射管包括贯穿所述隔板且与所述第二侧壁形成的缓冲部，所述缓冲部朝所述第三侧壁的方向隆起。
  19. 如权利要求16或17所述的燃烧器，其特征在于，所述燃烧器还包括底杯，所述底杯包括支撑面和自所述支撑面沿底杯的高度方向向下开设的一次空气到达腔室，所述分火器安装于所述底杯并使所述外引射管和所述内引射管均位于所述一次空气到达腔室内；所述底杯还包括外环进气管、内环进气管和导通管，所述外环进气管和所述内环进气管均延伸至所述一次空气到达腔室内并分别朝向所述外引射管和所述内引射管，所述导通管位于所述一次空气到达腔室外且分别与所述外环进气管和内环进气管连通。
  20. 一种烹饪灶具，其特征在于，所述烹饪灶具包括燃烧器，所述燃烧器包括分火器，所述分火器包括：
    本体，所述本体形成有混合气体槽；和
    设置在所述本体下方且与所述混合气体槽连通的引射管，当所述燃烧器水平放置时，所述引射管相较于水平方向倾斜设置，所述引射管与所述水平方向之间的夹角为26°-50°。
PCT/CN2018/112325 2018-09-03 2018-10-29 燃烧器和烹饪灶具 WO2020047967A1 (zh)

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