WO2022007463A1 - 分气盘、燃烧器和燃气灶具 - Google Patents

分气盘、燃烧器和燃气灶具 Download PDF

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Publication number
WO2022007463A1
WO2022007463A1 PCT/CN2021/087631 CN2021087631W WO2022007463A1 WO 2022007463 A1 WO2022007463 A1 WO 2022007463A1 CN 2021087631 W CN2021087631 W CN 2021087631W WO 2022007463 A1 WO2022007463 A1 WO 2022007463A1
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WO
WIPO (PCT)
Prior art keywords
air distribution
air
gas
ring
cover
Prior art date
Application number
PCT/CN2021/087631
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English (en)
French (fr)
Inventor
张厚康
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 CN202010638751.1A external-priority patent/CN111780111A/zh
Priority claimed from CN202021294436.3U external-priority patent/CN212408668U/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 WO2022007463A1 publication Critical patent/WO2022007463A1/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
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • 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
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners

Definitions

  • the present application relates to the technical field of burners, and in particular, to a gas distribution plate, a burner and a gas cooker.
  • the gas distributor plate of the existing burner generally uses copper or die-casting aluminum as the raw material.
  • the die-casting aluminum upper cover plate is riveted with the die-casting aluminum lower cover plate
  • the other is that the copper upper cover plate and the die-casting aluminum lower cover plate are riveted.
  • Copper-aluminum lower cover plate riveted The upper cover plate and the lower cover plate of these two methods have complex structures and complicated forming processes, resulting in high production costs.
  • an object of the present application is to provide an air distribution pan.
  • Another object of the present application is to provide a burner including the above-mentioned air distribution plate.
  • Another object of the present application is to provide a gas cooktop including the above burner.
  • an air distribution tray comprising: an air distribution main body, the air distribution main body includes an air distribution seat and an air distribution cover connected with the air distribution seat, the air distribution plate is The air distribution body is provided with a first air flow channel; the air distribution ring is installed at the first air flow channel and cooperates with the air distribution seat and/or the air distribution cover to guide the first air flow Gas flow in the channel.
  • an air distribution plate includes an air distribution body and an air distribution ring.
  • the air distribution body includes an air distribution seat and an air distribution cover.
  • the air distribution seat is equivalent to the lower part of the prior art.
  • the main body of the cover plate, the air distribution cover is equivalent to the main body of the upper cover plate in the prior art, the air distribution seat and the air distribution cover are fixedly connected, and the air distribution ring and the air distribution main body are of a split structure, and are installed on the air distribution main body after molding. at the first airflow channel. Therefore, the air distribution plate includes at least three components: the air distribution seat, the air distribution cover and the air distribution ring.
  • the air distribution plate only includes two parts: the upper cover plate and the lower cover plate
  • this solution is equivalent to Since the air distribution ring is separated from the air distribution main body and processed separately, the structure of the air distribution main body is simplified, which is beneficial to simplify the structure of the air distribution cover and the air distribution seat, and the structure of the air distribution ring itself is also relatively simple.
  • the utility model is simple, thereby facilitating the simplification of the forming process of the air distribution plate, reducing the production cost, and making the air distribution plate highly manufacturable, which is favorable for mass production.
  • the air distribution plate according to the above-mentioned embodiments of the present application may also have the following additional technical features:
  • the gas distribution body is provided with an inner peripheral wall and an outer peripheral wall, the outer peripheral wall is sleeved on the outside of the inner peripheral wall, and the first airflow channel is formed on the inner peripheral wall and the outer ring. between the peripheral walls; the air dividing main body is provided with at least one air intake channel, and the air intake channel communicates with the first air flow channel.
  • the first airflow channel is formed between the inner ring peripheral wall and the outer ring peripheral wall. Since both the inner ring peripheral wall and the outer ring peripheral wall are annular structures of a whole circle, the first airflow channel is also an annular structure of a whole circle. In this way, after the gas transported by the air inlet channel enters the first airflow channel, it can flow along the first airflow channel to ensure that the gas can be diffused to the whole circle. Compared with the scheme of designing the first air flow channel into a non-full ring structure, this scheme is conducive to ensuring the uniformity of gas diffusion and the mixing uniformity of gas and air, avoiding the occurrence of intermittent distribution of gas leading to a circle of flames. Fragmentation occurs.
  • the inner peripheral wall is provided on the gas distribution seat, and the outer peripheral wall is provided on the gas distribution cover.
  • the air distribution seat and the air distribution cover cooperate to form the first airflow channel, and it is only necessary to reasonably design the size and position of the inner peripheral wall of the air distribution seat and the outer peripheral wall of the air distribution cover.
  • the space between the peripheral walls of the outer ring can form the first airflow channel.
  • this solution does not need to separately preset the space structure of the first air flow channel on the air distribution cover or the air distribution seat, which is beneficial to reduce the air distribution.
  • the slot-like structure on the air cover or the air distribution seat further simplifies the mold structure, further reduces the difficulty of demolding, further reduces the production cost, and further improves the manufacturability of the air distribution plate.
  • the air distribution body is provided with a second air flow channel, and the second air flow channel is located inside the first air flow channel;
  • the air distribution ring includes a drainage portion, and the drainage portion is in contact with the peripheral wall of the outer ring, and cover a part of the top opening of the first airflow channel.
  • the first airflow channel is located on the outside and is an outer channel, which can form an outer flame after the burner is ignited; the second airflow channel is located on the inner side, which is an inner channel and can form an inner flame after the burner is ignited.
  • the cooker has an inner ring flame and an outer ring flame when in use, which is beneficial to improve the heating uniformity, and also facilitates the user to adjust the fire power according to the needs.
  • the drainage part of the air distribution ring is in contact with the outer peripheral wall of the air distribution cover and covers a part of the top opening of the first airflow channel, which is equivalent to the drainage part covering the outer area of the top opening of the first airflow channel.
  • the gas after the gas enters the first airflow channel, it will be blocked by the drainage part, thus creating a tendency to pass the opening of the first airflow channel and flow to the inside, so as to avoid the loss caused by the flow of gas to the outside, and it is conducive to the full mixing and diffusion of the gas and the air. Thereby, it is beneficial to the burner to burn energy.
  • the gas will also have a tendency to rotate and flow along the first gas flow channel due to the blocking of the drainage portion, which is beneficial to the uniform diffusion of the gas.
  • the drainage portion extends along the circumferential direction of the first airflow channel and surrounds the central axis of the first airflow channel.
  • the drainage portion is annular, which is adapted to the shape of the air divider, which avoids partial protrusion of the air divider and simplifies the structure of the air divider, thereby simplifying the processing technology and reducing the production cost.
  • the annular drainage portion is adapted to the shape of the annular first airflow channel, and can drain the gas at each part of the circumference of the first airflow channel, thereby helping to improve the uniformity of gas diffusion.
  • the central axis of the second airflow channel is parallel or collinear with the central axis of the air divider; the central axis of the intake channel is inclined relative to the central axis of the second airflow channel; The central axis of the intake passage is inclined outward in the direction close to the air distribution ring.
  • the central axis of the second airflow channel is parallel or collinear with the central axis of the air divider, generally along a vertical direction.
  • the central axis of the intake passage is set to the above-mentioned inclined direction, and in the case of a plurality of intake passages, it is beneficial to reduce the distance between the inlets of the multiple intake passages, and it is convenient to pass one port to the multiple intake passages. Air supply, thereby simplifying the structure of the burner.
  • the air intake channel and the second air flow channel are provided on the air distribution seat; the number of the air intake channels is multiple, and the plurality of the air intake channels are along the circumferential direction of the air distribution seat interval setting.
  • the air inlet channel and the second air flow channel are arranged on the air distribution seat, which can greatly simplify the structure of the air distribution cover and simplify the assembly process of the air distribution cover and the air distribution seat.
  • Air is supplied to the first airflow channel through a plurality of air intake channels, so that multiple parts of the first airflow channel in the circumferential direction can take in air at the same time, and rotate and diffuse in multiple directions, thereby further improving the mixing uniformity of fuel gas and air.
  • the air distribution cover is provided with a positioning step; the air distribution ring is an annular plate-shaped structure, and the air distribution ring is supported and positioned by the positioning step.
  • the air dividing ring is designed as an annular plate-like structure, and the structure is very simple, and it is convenient to use a suitable process for forming as required.
  • the positioning steps of the air distribution cover can play a positioning and support role for the air distribution ring, thereby reducing the assembly difficulty of the air distribution ring.
  • the positioning step includes a first step surface and a second step surface, and two ends of the second step surface are respectively connected to the first step surface and the peripheral wall of the outer ring; Two-step surface support.
  • the first step surface, the second step surface, and the peripheral wall of the outer ring are connected in sequence, so that the air distribution cover roughly forms a two-step structure. Placing the air ring on the second step surface can ensure that the air distribution ring can shield the top opening of the first air flow channel so as to guide the air flow in the first air flow channel.
  • the air distribution ring is in an interference fit with the first stepped surface; or the air distribution ring is in clearance fit with the first stepped surface.
  • the air divider and the first step surface adopt an interference fit, which can ensure the positional accuracy of the air divider, prevent the air divider from moving at will, and improve the reliability of the use of the air divider.
  • the air distribution ring and the first step surface adopt a clearance fit method, which can prevent the friction between the air distribution ring and the air distribution main body during loading and unloading, resulting in sticking and other situations, which is beneficial to reduce the difficulty of loading and unloading.
  • the air distribution ring and the air distribution body are detachably connected.
  • the air distribution ring and the air distribution main body adopt a detachable connection method, which is convenient for users to install the air distribution ring or disassemble the air distribution ring as needed during use.
  • the firepower is relatively uniform; while the air distribution ring is removed, the firepower is relatively fierce. This increases the user's selection range, which is beneficial to improve the user's comfort.
  • the outer contour line of the top end of the gas distribution cover is circular, and the diameter of the outer contour line of the top end of the air distribution cover is in the range of 125 mm to 135 mm.
  • the outer diameter of the existing air distribution plate is generally based on the diameter of the top contour line of the air distribution cover. After research, it was found that the larger the outer diameter of the gas distribution plate, the better the dispersing ability of the gas.
  • the outer diameter of the existing gas distribution plate is generally within 120mm, but this solution increases the outer diameter of the air distribution plate to within the range of 125mm to 135mm, thereby improving the dispersing ability of gas and improving the effect of burning energy.
  • the air distribution ring is a stamping part; and/or the air distribution cover and the air distribution seat are die casting parts.
  • the air distribution ring adopts stamping parts, which can be prepared by ordinary stamping process or laser blanking process, which is beneficial to ensure the strength of the air distribution plate, and at the same time, the production process is simplified, and the manufacturability is high.
  • the air distribution cover and air distribution seat are made of die-casting parts, that is, they are integrally formed by the die-casting process.
  • one of the air distribution cover and the air distribution seat is provided with a positioning hole, and the other is provided with a positioning protrusion, and the positioning protrusion is in concave and convex cooperation with the positioning hole.
  • the positioning holes and the positioning protrusions can play a good positioning role in the assembly process of the air distribution cover and the air distribution seat, thereby reducing the assembly difficulty of the air distribution cover and the air distribution seat.
  • the height of the positioning protrusion is greater than the depth of the positioning hole, so that a part of the positioning protrusion can pass through the positioning hole and protrude out of the positioning hole, then the part of the positioning protrusion protruding from the positioning hole is flattened to make its area If the cross-sectional area is larger than the positioning hole, the separation of the air distribution cover and the air distribution seat can be prevented, and the air distribution cover and the air distribution seat can be connected.
  • a burner comprising: the gas distribution tray according to any one of the embodiments of the first aspect; a burner head, a first gas flow of the burner head and the gas distribution tray The channel is communicated and used for supplying air to the first air flow channel; the fire cover is arranged on the air distribution plate, and the fire cover is provided with a fire hole communicated with the first air flow channel.
  • the burner has all the beneficial effects of any of the above-mentioned embodiments because the burner includes the gas distribution plate provided by any of the above-mentioned embodiments of the first aspect, in This will not be repeated here.
  • a gas cooker including: a cooktop body; and a burner according to the embodiment of the second aspect, the burner being connected to the cooktop body.
  • the gas cooker provided according to an embodiment of the third aspect of this aspect because the gas cooker includes the burner provided by the embodiment of the second aspect, it has all the beneficial effects of any of the above-mentioned embodiments, and is omitted here. Repeat.
  • FIG. 1 is a schematic three-dimensional structural view of an air distribution plate provided according to an embodiment of the present application
  • Fig. 2 schematically shows the bottom view of the air distribution plate shown in Fig. 1;
  • Fig. 3 schematically shows the cross-sectional structural view of the air distributor plate shown in Fig. 2 in the direction A-A;
  • Fig. 4 schematically shows the front view structure diagram of the gas distribution plate shown in Fig. 1;
  • Fig. 5 is a schematic diagram of an exploded structure of an air distributor provided according to an embodiment of the present application.
  • FIG. 6 is a schematic three-dimensional structural view of a burner provided according to an embodiment of the present application.
  • Fig. 7 is a schematic partial exploded structural view of a gas cooker provided according to an embodiment of the present application.
  • FIG. 8 is a schematic structural block diagram of a gas cooktop provided according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a gas cooktop provided according to an embodiment of the present application.
  • an air distribution plate 1 provided according to an embodiment of the first aspect of the present application includes an air distribution main body 10 and an air distribution ring 20 .
  • the air distribution body 10 includes an air distribution seat 12 and an air distribution cover 11 connected to the air distribution seat 12 , and the air distribution body 10 is provided with a first airflow channel 13 .
  • the air distribution ring 20 is installed at the first air flow channel 13 and cooperates with the air distribution seat 12 and/or the air distribution cover 11 to guide the gas flow in the first air flow channel 13 .
  • an air distribution plate 1 is provided.
  • the air distribution plate 1 includes an air distribution body 10 and an air distribution ring 20.
  • the air distribution body 10 includes an air distribution seat 12 and an air distribution cover 11.
  • the air distribution seat 12 is equivalent to the main body of the lower cover plate in the prior art
  • the gas distribution cover 11 is equivalent to the main body of the upper cover plate in the prior art.
  • 10 is a split structure, and is installed at the first airflow channel 13 of the air distribution main body 10 after molding.
  • the air distribution plate 1 at least includes three components: the air distribution seat 12, the air distribution cover 11 and the air distribution ring 20.
  • the air distribution plate 1 only includes two parts: the upper cover plate and the lower cover plate.
  • This solution is equivalent to splitting the air distribution ring 20 from the air distribution main body 10 and forming it separately, which not only simplifies the structure of the air distribution main body 10, but also helps to simplify the structure of the air distribution cover 11 and the air distribution seat 12.
  • the structure of the air distribution ring 20 itself is relatively simple, so it is beneficial to simplify the molding process of the air distribution plate 1, reduce the production cost, and make the air distribution plate 1 highly manufacturable, which is conducive to mass production.
  • the first airflow channel 13 of the air distribution body 10 may be provided on the air distribution seat 12 or the air distribution cover 11 , or may be formed by the cooperation of the air distribution seat 12 and the air distribution cover 11 .
  • the air distribution ring 20 is installed at the first airflow channel 13, and can only cooperate with the air distribution seat 12, or only cooperate with the air distribution cover 11, or cooperate with the air distribution seat 12 and the air distribution cover 11 at the same time.
  • the way can include interference fit, clearance fit, fastener connection, welding, etc.
  • the first airflow channel 13 is a space for gas to flow
  • an air distribution ring 20 is arranged at the first airflow channel 13, so that the space structure and the physical structure coexist in this part of the air distribution plate 1, and it is easy to have a partial spatial structure. Thinning, narrowing, etc. Therefore, if the air distribution ring 20 is integrated on the air distribution cover 11 or the air distribution seat 12, the structure of the air distribution cover 11 or the air distribution seat 12 will be complicated. , and the difficulty of demolding during molding is high, and the manufacturability is low, which is not conducive to mass production.
  • the air distribution ring 20 is split out and processed separately, which can effectively avoid the above situation, simplify the structure of the air distribution cover 11 and the air distribution seat 12, thereby simplifying the mold structure and reducing the difficulty of demolding, thereby reducing the production cost. , and significantly improve the manufacturability of the gas distribution plate 1, which is beneficial to mass production.
  • the gas distribution body 10 is provided with an inner peripheral wall 121 and an outer peripheral wall 111 , as shown in FIG. 3 .
  • the outer peripheral wall 111 is sleeved outside the inner peripheral wall 121 .
  • the first airflow channel 13 is formed between the inner circumferential wall 121 and the outer circumferential wall 111 .
  • the air distribution body 10 is provided with at least one air intake passage 122 , as shown in FIGS. 2 and 3 .
  • the intake passage 122 communicates with the first airflow passage 13 .
  • the inner ring peripheral wall 121 is provided on the gas distribution seat 12 , as shown in FIG. 5 .
  • the outer ring peripheral wall 111 is provided on the gas distribution cover 11 , as shown in FIG. 5 .
  • the first airflow channel 13 is formed between the inner peripheral wall 121 and the outer peripheral wall 111 . Since the inner peripheral wall 121 and the outer peripheral wall 111 are both annular structures, the first airflow channel 13 is also A full circle of annular structures. In this way, after the gas transported by the intake passage 122 enters the first airflow passage 13, it can flow along the first airflow passage 13 to ensure that the gas can be diffused to the whole circle.
  • this scheme is conducive to ensuring the uniformity of gas diffusion, and is also conducive to the uniformity of mixing of gas and air, so as to avoid the intermittent distribution of gas leading to a circle.
  • the flames appear segmented.
  • the air distribution seat 12 and the air distribution cover 11 cooperate to form the first air flow channel 13. It is only necessary to reasonably design the size and position of the inner peripheral wall 121 of the air distribution seat 12 and the outer peripheral wall 111 of the air distribution cover 11. The space between the peripheral wall 121 and the outer peripheral wall 111 can form the first airflow channel 13 .
  • this solution does not need to separately preset the space for the first air flow channel 13 on the air distribution cover 11 or the air distribution seat 12
  • the structure is beneficial to reduce the slot structure on the air distribution cover 11 or the air distribution seat 12 , thereby further simplifying the mold structure, further reducing the difficulty of demolding, further reducing the production cost, and further improving the manufacturability of the air distribution plate 1 .
  • the air distribution body 10 is provided with a second air flow channel 123, as shown in FIG. 3 .
  • the second airflow channel 123 is located inside the first airflow channel 13 .
  • the air distribution ring 20 includes a drainage portion 21 , as shown in FIG. 3 .
  • the drainage portion 21 is in contact with the outer ring peripheral wall 111 and covers a part of the top opening of the first airflow channel 13 .
  • the first airflow channel 13 is located on the outer side and is an outer channel, which can form an outer flame after the burner 2 is ignited;
  • the second airflow channel 123 is located on the inner side and is an inner channel, which can be formed after the burner 2 is ignited.
  • Inner circle flame In this way, the cooker has an inner ring flame and an outer ring flame when in use, which is beneficial to improve the heating uniformity, and also facilitates the user to adjust the fire power according to the needs.
  • the drainage portion 21 of the air distribution ring 20 is in contact with the outer peripheral wall 111 of the air distribution cover 11 and covers a part of the top opening of the first airflow channel 13 , which is equivalent to that the drainage portion 21 covers the top opening of the first airflow channel 13 . the outer area. In this way, after the gas enters the first airflow channel 13, it will be blocked by the drainage portion 21, thereby creating a tendency to flow inwardly across the opening of the first airflow channel 13, avoiding the loss caused by the flow of gas to the outside, and is conducive to sufficient gas and air. Mixed and diffused, which is conducive to the burning of the burner 2 to gather energy.
  • the gas also tends to rotate and flow along the first airflow channel 13 due to the blocking of the drainage portion 21 , which is beneficial to the uniform diffusion of the gas.
  • the drainage portion 21 extends along the circumferential direction of the first airflow channel 13 and surrounds the central axis of the first airflow channel 13 .
  • the drainage portion 21 is annular and matches the shape of the air distribution ring 20 , which prevents the air distribution ring 20 from partially protruding and simplifies the structure of the air distribution ring 20 , thereby simplifying the processing technology and reducing the production cost.
  • the annular drainage portion 21 is adapted to the shape of the annular first airflow channel 13 , and can drain the gas at various parts of the first airflow channel 13 , thereby helping to improve the uniformity of gas diffusion.
  • the central axis of the second airflow channel 123 is parallel or collinear with the central axis of the air divider 20 .
  • the central axis of the intake passage 122 is inclined with respect to the central axis of the second airflow passage 123 .
  • the central axis of the intake passage 122 is inclined outward in a direction close to the air distribution ring 20 .
  • the central axis of the second airflow channel 123 is parallel to or collinear with the central axis of the air distribution ring 20, generally along the vertical direction.
  • the central axis of the intake passage 122 is set to the above-mentioned inclined direction, and for the case where the number of the intake passages 122 is multiple, it is beneficial to reduce the distance between the inlets of the multiple intake passages 122, and it is convenient to pass a port to multiple intake passages 122.
  • the intake passage 122 supplies air, thereby simplifying the structure of the combustor 2 .
  • the air intake passage 122 and the second air flow passage 123 are provided on the air distribution seat 12.
  • the number of the intake passages 122 is multiple. As shown in FIG. 2 , the multiple intake passages 122 are arranged at intervals along the circumferential direction of the air distribution seat 12 .
  • the air inlet passage 122 and the second air passage 123 are arranged on the air distribution seat 12 , which can greatly simplify the structure of the air distribution cover 11 and simplify the assembly process of the air distribution cover 11 and the air distribution seat 12 .
  • Air is supplied to the first air passage 13 through the plurality of air intake passages 122 , so that multiple parts in the circumferential direction of the first air passage 13 can be simultaneously supplied with air, and rotated and diffused in multiple directions, thereby further improving the uniformity of the mixing of fuel gas and air. sex.
  • the plurality of air intake passages 122 are evenly distributed along the circumferential direction of the air distribution seat 12 .
  • the number of the intake passages 122 is four, and the four intake passages 122 are evenly distributed along the circumferential direction of the air distribution seat 12 .
  • the gas distribution cover 11 is provided with a positioning step 112 , as shown in FIG. 3 .
  • the air distribution ring 20 is an annular plate-like structure, as shown in FIG. 5 .
  • the air divider 20 is supported and positioned by the positioning step 112 .
  • the air dividing ring 20 is designed as an annular plate-shaped structure, and the structure is very simple, and it is convenient to use a suitable process for forming as required.
  • the positioning step 112 of the air distribution cover 11 can play a positioning and support role for the air distribution ring 20 , thereby reducing the assembly difficulty of the air distribution ring 20 .
  • the positioning step 112 includes a first step surface 1121 and a second step surface 1122 , as shown in FIG. 3 .
  • Two ends of the second stepped surface 1122 are respectively connected to the first stepped surface 1121 and the outer peripheral wall 111 .
  • the air divider 20 is supported by the second stepped surface 1122 .
  • the first step surface 1121 , the second step surface 1122 , and the outer peripheral wall 111 are connected in sequence, so that the gas distribution cover 11 roughly forms a two-step structure, and the positioning step 112 is located outside the first airflow channel 13 and On the upper side, the air distribution ring 20 is placed on the second step surface 1122, so as to ensure that the air distribution ring 20 can block the top opening of the first airflow channel 13, so as to play a role in the airflow in the first airflow channel 13. guiding role.
  • the air distribution ring 20 is in an interference fit with the first stepped surface 1121 .
  • the air divider 20 and the first stepped surface 1121 adopt an interference fit, which can ensure the positional accuracy of the air divider 20, prevent the air divider 20 from moving at will, and improve the use of the air divider 20. reliability.
  • the air distribution ring 20 is in clearance fit with the first stepped surface 1121 .
  • the air ring and the first stepped surface 1121 adopt a clearance fit method, which can prevent the friction between the air distribution ring 20 and the air distribution body 10 during assembly and disassembly, resulting in sticking and other situations, which is beneficial to reduce the difficulty of assembly and disassembly.
  • the air distribution ring 20 is detachably connected to the air distribution main body 10 .
  • the air distribution ring 20 is detachably connected to the air distribution main body 10 , which is convenient for the user to install the air distribution ring 20 or disassemble the air distribution ring 20 as required during use.
  • the firepower is relatively uniform; while the air distribution ring 20 is removed, the firepower is relatively fierce. This increases the user's selection range, which is beneficial to improve the user's comfort.
  • the outer contour line 113 of the top end of the gas distribution cover 11 is circular. As shown in FIG. 4 , the diameter D of the outer contour line 113 of the top end of the gas distribution cover 11 is in the range of 125mm to 135mm, such as 125mm, 128mm, 130mm, 132mm, 135mm and so on.
  • the outer diameter of the existing air distribution plate 1 is generally based on the diameter of the top contour line of the air distribution cover 11 . After research, it is found that the larger the outer diameter of the gas distribution plate 1 is, the better the dispersing ability of the gas is.
  • the outer diameter of the existing gas distributor 1 is generally within 120mm, but this solution increases the outer diameter of the gas distributor 1 to within the range of 125mm to 135mm, thereby improving the dispersing ability of gas and improving the effect of burning energy.
  • the air distribution ring 20 is a stamping part.
  • the air distribution cover 11 and the air distribution seat 12 are die castings.
  • the air distribution ring 20 is made of stamping parts, which can be prepared by ordinary stamping process or laser blanking process, which is beneficial to ensure the strength of the air distribution plate 1, and at the same time, the production process is simplified, and the manufacturability is high.
  • the air distribution cover 11 and the air distribution seat 12 are die-casting parts, that is, they are integrally formed by the die-casting process, and have high structural strength, which is conducive to ensuring the strength of the air distribution plate 1, and the technology is mature, which is conducive to mass production.
  • one of the air distribution cover 11 and the air distribution seat 12 is provided with a positioning hole 124, and the other is provided with a positioning protrusion 114, and the positioning protrusion 114 and the positioning hole 124 are concave and convex, as shown in FIG. 3 shown.
  • the arrangement of the positioning holes 124 and the positioning protrusions 114 can play a good positioning role during the assembly process of the air distribution cover 11 and the air distribution seat 12, thereby reducing the air distribution cover 11 and the air distribution seat. 12 assembly difficulty.
  • the height of the positioning protrusions 114 is greater than the depth of the positioning holes 124 , so that a part of the positioning protrusions 114 can pass through the positioning holes 124 and protrude out of the positioning holes 124 , then the positioning protrusions 114 are protruded out of the positioning holes 124 .
  • the burner 2 provided according to an embodiment of the second aspect of the present application includes: the gas distribution plate 1 , the burner head 202 and the fire cover 204 according to any one of the embodiments of the first aspect. Since the burner 2 includes the gas distribution plate 1 provided by any embodiment of the above-mentioned first aspect, it has all the beneficial effects of any of the above-mentioned embodiments, which will not be repeated here.
  • the burner head 202 communicates with the first airflow channel 13 of the gas distribution plate 1 for supplying gas to the first airflow channel 13 .
  • the fire cover 204 is covered on the air distribution plate 1 , and the fire cover 204 is provided with a fire hole 206 communicating with the first airflow channel 13 .
  • the fire cover 204 includes a first fire cover 2042 and a second fire cover 2044.
  • the fire hole 206 of the first fire cover 2042 is communicated with the first airflow channel 13, and the fire hole 206 of the second fire cover 2044 is connected to the second airflow channel 123. Connected.
  • the first fire cover 2042 covers the first airflow channel 13
  • the second fire cover 2044 covers the second airflow channel 123
  • the gas is guided and burned by the fire cover 204 in the cavity formed between the fire cover 204 and the gas distributor 1 .
  • a gas cooktop 3 provided according to an embodiment of the third aspect of the present application includes a cooktop body 302 and the burner 2 according to the embodiment of the second aspect, and the burner 2 is connected to the cooktop body 302 .
  • the gas cooktop 3 includes the burner 2 provided by the above-mentioned embodiment of the second aspect, and thus has all the beneficial effects of any of the above-mentioned embodiments. This will not be repeated here.
  • the cooktop body 302 includes a casing 3022 , a panel 3028 , an air pipe 3030 , an ignition device 3026 , a flameout protection device 3024 , a valve body 3032 and other structures.
  • the flameout protection device 3024 includes a thermocouple 3034
  • the ignition device 3026 includes an ignition needle 3036 .
  • the panel 3028 is installed on the housing 3022, and is provided with operation parts such as knobs for connecting the ignition device 3026 and the flameout protection device 3024, for the user to control the gas cooker.
  • the burner 2 is set in the casing 3022, and the burner 2's burner head 202 is connected to a gas delivery pipe 3030, which is used to deliver gas to the burner 2, and a valve body 3032 is connected to the gas delivery pipe 3030.
  • a specific embodiment of the present application provides an air distribution tray 1 , which includes an air distribution cover 11 , an air distribution seat 12 and an air distribution ring 20 .
  • the air distribution ring 20 is an annular plate-like structure.
  • the air distribution ring 20 is also of annular structure as a whole, the inner wall surface is provided with positioning steps 112 and the outer ring peripheral wall 111, and the bottom is evenly provided with a plurality of positioning columns.
  • the air distribution seat 12 is provided with an inner peripheral wall 121 and four air inlet passages 122 evenly distributed along the circumferential direction. Positioning hole 124 .
  • the air distribution cover 11 and the air distribution seat 12 are die-casting parts, and the air distribution ring 20 is a stamping part.
  • the air distribution ring 20 is a stamping part.
  • the firmware is fixedly connected, and the air distribution ring 20 is pre-installed on the positioning step 112 of the air distribution cover 11 .
  • the user can remove the air distribution ring 20 as required.
  • This assembly method is simple in process and high in production efficiency.
  • the central axis of the second airflow channel 123 is along the vertical direction, the central axis of the air intake channel 122 is inclined with respect to the vertical direction, and the intake channel 122 extends outwardly in a downward direction.
  • a first airflow channel 13 is formed between the outer peripheral wall 111 of the air distribution seat 12 and the inner peripheral wall 121 of the air distribution cover 11 .
  • the inner peripheral area (ie the drainage portion 21 ) of the air distribution ring 20 covers the outer peripheral area of the first airflow passage 13 , so that the gas entering the first airflow passage 13 from the intake passage 122 has a tendency to flow upward and inward, which is beneficial to combustion Device 2 burns and gathers energy.
  • the first airflow channel 13 is an annular channel that communicates with the four air intake channels 122, and there is a second airflow channel 123 in the center, which is convenient for the gas to diffuse evenly and fully mix with the air.
  • both the air distribution cover 11 and the air distribution seat 12 are integrally formed by die casting process, and the air distribution ring 20 adopts laser blanking or stamping process, which not only ensures the strength of the air distribution plate 1, but also simplifies the production of the air distribution plate 1.
  • the technology has high manufacturability, is conducive to mass production, and reduces costs.
  • the gas can be fully mixed and diffused under the diversion of the gas dividing ring 20 , so that the burner 2 gathers energy and improves the efficiency of the burner 2 .

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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

一种分气盘（1），包括：分气主体（10），该分气主体（10）包括分气座（12）和与该分气座（12）相连的分气盖（11），该分气主体（10）设有第一气流通道（13）；分气圈（20），该分气圈（20）安装在该第一气流通道（13）处，并与该分气座（12）和/或该分气盖（11）相配合，用于引导该第一气流通道（13）内的气体流动。一种包括该分气盘（1）的燃烧器（2）以及一种包括上述燃烧器（2）的燃气灶具（3）。

Description

分气盘、燃烧器和燃气灶具
本申请要求于2020年07月06日提交到中国国家知识产权局、申请号为“202010638751.1”、申请名称为“分气盘、燃烧器和燃气灶具”的中国专利申请的优先权、于2020年07月06日提交到中国国家知识产权局、申请号为“202021294436.3”、申请名称为“分气盘、燃烧器和燃气灶具”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及燃烧器技术领域，具体而言，涉及一种分气盘、一种燃烧器和一种燃气灶具。
背景技术
目前，现有燃烧器的分气盘一般采用铜或压铸铝作为原材料，主要有两种方式：一种是压铸铝上盖板同压铸铝下盖板铆接，另一种是铜上盖板与铜铝下盖板铆接。这两种方式的上盖板和下盖板结构复杂，成型工艺复杂，导致生产成本高。
发明内容
为了解决上述技术问题至少之一，本申请的一个目的在于提供一种分气盘。
本申请的另一个目的在于提供一种包括上述分气盘的燃烧器。
本申请的又一个目的在于提供一种包括上述燃烧器的燃气灶具。
为了实现上述目的，根据本申请第一方面的一个实施例提供了一种分气盘，包括：分气主体，该分气主体包括分气座和与该分气座相连的分气盖，该分气主体设有第一气流通道；分气圈，该分气圈安装在该第一气流通道处，并与该分气座和/或该分气盖相配合，用于引导该第一气流通道内的气体流动。
根据本申请第一方面的一个实施例提供的分气盘，分气盘包括分气主体和分气圈，分气主体包括分气座和分气盖，分气座相当于现有技术中下盖板的主 体，分气盖相当于现有技术中上盖板的主体，分气座和分气盖固定连接，而分气圈与分气主体为分体式结构，成型后安装在分气主体的第一气流通道处。因此，分气盘至少包括分气座、分气盖和分气圈三个部件，相较于现有技术中分气盘只包括上盖板和下盖板两个部件的方案，本方案相当于将分气圈从分气主体上拆分下来，单独加工成型，既简化了分气主体的结构，从而有利于简化分气盖和分气座的结构，且分气圈本身的结构也较为简单，因而有利于简化分气盘的成型工艺，降低生产成本，且使得分气盘可制造性高，有利于大批量的生产。
另外，根据本申请的上述实施例中的分气盘还可以具有如下附加技术特征：
根据本申请的一个实施例，该分气主体设有内环周壁和外环周壁，该外环周壁套设在该内环周壁外侧，该第一气流通道形成在该内环周壁与该外环周壁之间；该分气主体设有至少一个进气通道，该进气通道与该第一气流通道连通。
在该实施例中，第一气流通道形成在内环周壁与外环周壁之间，由于内环周壁和外环周壁都是整圈的环形结构，因而第一气流通道也是整圈的环形结构。这样，进气通道输送的气体进入第一气流通道后，可以沿着第一气流通道流动，保证气体能够扩散至整圈。相较于将第一气流通道设计成非整圈环形结构的方案，本方案有利于保证气体扩散的均匀性，也有利于燃气与空气的混合均匀性，避免出现气体间断式分布导致一圈火焰出现分段的情况。
根据本申请的一个实施例，该内环周壁设在该分气座上，该外环周壁设在该分气盖上。
在该实施例中，分气座和分气盖配合形成第一气流通道，只需合理设计分气座的内环周壁和分气盖的外环周壁的尺寸和位置，装配后内环周壁和外环周壁之间的空间即可形成第一气流通道。相较于单独利用分气盖或单独利用分气座来形成第一气流通道的方案，本方案无需在分气盖或分气座上单独预设第一气流通道的空间结构，有利于减少分气盖或分气座上的槽孔类结构，从而进一步简化模具结构，进一步降低脱模难度，进而进一步降低生产成本，进一步提高分气盘的可制造性。
根据本申请的一个实施例，该分气主体设有第二气流通道，该第二气流通 道位于该第一气流通道内侧；该分气圈包括引流部，该引流部与该外环周壁接触，并覆盖该第一气流通道的顶部开口的一部分。
在该实施例中，第一气流通道位于外侧，为外侧通道，在燃烧器点燃后能够形成外圈火焰；第二气流通道位于内侧，为内侧通道，在燃烧器点燃后能够形成内圈火焰。这样，灶具使用时具有内圈火焰和外圈火焰，有利于提高加热均匀性，也便于用户根据需求调节火力大小。其中，分气圈的引流部与分气盖的外环周壁接触，并覆盖第一气流通道的顶部开口的一部分，相当于引流部覆盖了第一气流通道的顶部开口的外部区域。这样，气体进入第一气流通道后会受到引流部的阻挡，从而产生越过第一气流通道的开口并向内侧流动的趋势，避免燃气向外侧流动造成损失，且有利于燃气与空气充分混合扩散，从而有利于燃烧器燃烧聚能。同时，受到引流部的阻挡，气体也会产生沿着第一气流通道旋转流动的趋势，从而有利于燃气扩散均匀。
根据本申请的一个实施例，该引流部沿第一气流通道的周向延伸，并环绕第一气流通道的中心轴线。
在该实施例中，引流部呈环形，与分气圈的形状适配，避免了分气圈局部凸出，简化了分气圈的结构，从而简化加工工艺，降低生产成本。同时，环形的引流部与环形的第一气流通道的形状适配，能够对第一气流通道周圈各个部位的燃气进行引流，从而有利于提高燃气的扩散均匀性。
根据本申请的一个实施例，该第二气流通道的中心轴线与该分气圈的中心轴线平行或共线；该进气通道的中心轴线相对于该第二气流通道的中心轴线倾斜设置；沿着靠近该分气圈的方向，该进气通道的中心轴线朝外倾斜设置。
在该实施例中，第二气流通道的中心轴线与分气圈的中心轴线平行或共线，一般沿竖直方向。将进气通道的中心轴线设置成上述倾斜方向，对于进气通道的数量为多个的情况，有利于缩小多个进气通道的入口之间的距离，便于通过一个端口向多个进气通道供气，从而简化燃烧器的结构。
根据本申请的一个实施例，该进气通道和该第二气流通道设在该分气座上；该进气通道的数量为多个，多个该进气通道沿该分气座的周向间隔设置。
在该实施例中，将进气通道和第二气流通道设在分气座上，能够大大简化分气盖的结构，并简化分气盖与分气座的装配工序。通过多个进气通道向第一 气流通道供气，使得第一气流通道的周向多个部位能够同时进气，并多方位旋转扩散，从而有利于进一步提高燃气与空气的混合均匀性。
根据本申请的一个实施例，该分气盖设有定位台阶；该分气圈为环形板状结构，该分气圈被该定位台阶支撑并定位。
在该实施例中，将分气圈设计为环形板状结构，结构非常简单，便于根据需要采用适合的工艺进行成型。分气盖的定位台阶能够对分气圈起到定位作用和支撑作用，从而降低分气圈的装配难度。
根据本申请的一个实施例，该定位台阶包括第一台阶面和第二台阶面，该第二台阶面的两端分别连接该第一台阶面和该外环周壁；该分气圈被该第二台阶面支撑。
在该实施例中，第一台阶面、第二台阶面、外环周壁依次相连，使得分气盖大致形成两级台阶的结构，定位台阶位于第一气流通道的外侧和上侧，则将分气圈置于第二台阶面上，即可保证分气圈能够对第一气流通道的顶部开口进行遮挡，以对第一气流通道内的气流起到引导作用。
根据本申请的一个实施例，该分气圈与该第一台阶面过盈配合；或者该分气圈与该第一台阶面间隙配合。
在该实施例中，分气圈与第一台阶面采用过盈配合的方式，能够保证分气圈的位置准确性，并防止分气圈随意移动，提高分气圈的使用可靠性。
或者，分气圈与第一台阶面采用间隙配合的方式，能够防止装卸时分气圈与分气主体发生摩擦导致卡滞等情况，有利于降低装卸难度。
根据本申请的一个实施例，该分气圈与该分气主体可拆卸连接。
分气圈与分气主体采用可拆卸连接的方式，便于用户在使用过程中根据需要安装分气圈或者拆卸分气圈。装上分气圈，火力相对较均匀；而拆下分气圈，火力相对较猛。这增加了用户的选择范围，有利于提高用户的使用舒适度。
根据本申请的一个实施例，该分气盖的顶端外轮廓线呈圆形，该分气盖的顶端外轮廓线的直径在125mm至135mm的范围内。
现有的分气盘的外径一般以分气盖的顶端轮廓线的直径为准。经过研究后发现，分气盘的外径越大，燃气的分散能力相对较好。现有的分气盘的外径一般在120mm以内，而本方案将分气盘的外径增加至125mm至135mm范围内， 因而能够提高燃气的分散能力，提高燃烧聚能效果。
根据本申请的一个实施例，该分气圈为冲压件；和/或该分气盖和该分气座为压铸件。
分气圈采用冲压件，可以利用普通的冲压工艺，也可以利用激光落料等工艺进行制备，有利于保证分气盘的强度，同时简化了生产工艺，可制造性高。
分气盖和分气座采用压铸件，即均通过压铸工艺一体成型，结构强度高，有利于保证分气盘的强度，且工艺成熟，有利于大批量生产。
根据本申请的一个实施例，该分气盖和该分气座中的一个设有定位孔，另一个设有定位凸起，该定位凸起与该定位孔凹凸配合。
在该实施例中，定位孔和定位凸起的设置，在分气盖与分气座的装配过程中，能够起到良好的定位作用，从而降低分气盖与分气座的装配难度。进一步地，定位凸起的高度大于定位孔的深度，使得定位凸起的一部分可以穿过定位孔并凸出于定位孔，则将定位凸起凸出于定位孔的部分压平，使其面积大于定位孔的截面积，即可防止分气盖与分气座分离，起到连接分气盖与分气座的作用。
根据本申请第二方面的一个实施例提供了一种燃烧器，包括：如第一方面的实施例中任一项的分气盘；炉头，该炉头与该分气盘的第一气流通道连通，用于向该第一气流通道供气；火盖，该火盖盖设在该分气盘上，该火盖设有与该第一气流通道连通的火孔。
根据本申请第二方面的一个实施例提供的燃烧器，该燃烧器因包括上述第一方面的任一实施例提供的分气盘，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
根据本申请第三方面的一个实施例提供了一种燃气灶具，包括：灶具主体；和如第二方面的实施例的燃烧器，该燃烧器与该灶具主体相连。
根据本方面第三方面的一个实施例提供的燃气灶具，该燃气灶具因包括上述第二方面的实施例提供的燃烧器，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1示意了根据本申请一个实施例提供的分气盘的立体结构图；
图2示意了图1所示分气盘的仰视结构图；
图3示意了图2所示分气盘A-A向的剖视结构图；
图4示意了图1所示分气盘的主视结构图；
图5示意了根据本申请一个实施例提供的分气盘的分解结构图；
图6示意了根据本申请一个实施例提供的燃烧器的立体结构图；
图7示意了根据本申请一个实施例提供的燃气灶具的局部分解结构图；
图8示意了根据本申请一个实施例提供的燃气灶具的结构框图；
图9示意了根据本申请一个实施例提供的燃气灶具的结构图。
其中，图1至图9中的附图标记与部件名称之间的对应关系为：
1分气盘，10分气主体，11分气盖，111外环周壁，112定位台阶，1121第一台阶面，1122第二台阶面，113顶端外轮廓线，114定位凸起，12分气座，121内环周壁，122进气通道，123第二气流通道，124定位孔，13第一气流通道，20分气圈，21引流部；
2燃烧器，202炉头，204火盖，2042第一火盖，2044第二火盖，206火孔；
3燃气灶具，302灶具主体，3022壳体，3024熄火保护装置，3026点火装置，3028面板，3030输气管，3032阀体，3034热电偶，3036点火针。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范 围并不受下面公开的具体实施例的限制。
下面参照图1至图9描述根据本申请一些实施例提供的分气盘、燃烧器和燃气灶具。
如图1所示，根据本申请第一方面的一个实施例提供的分气盘1，包括：分气主体10和分气圈20。
具体地，分气主体10包括分气座12和与分气座12相连的分气盖11，分气主体10设有第一气流通道13。
如图1所示，分气圈20安装在第一气流通道13处，并与分气座12和/或分气盖11相配合，用于引导第一气流通道13内的气体流动。
根据本申请第一方面的一个实施例提供的分气盘1，分气盘1包括分气主体10和分气圈20，分气主体10包括分气座12和分气盖11，分气座12相当于现有技术中下盖板的主体，分气盖11相当于现有技术中上盖板的主体，分气座12和分气盖11固定连接，而分气圈20与分气主体10为分体式结构，成型后安装在分气主体10的第一气流通道13处。
因此，分气盘1至少包括分气座12、分气盖11和分气圈20三个部件，相较于现有技术中分气盘1只包括上盖板和下盖板两个部件的方案，本方案相当于将分气圈20从分气主体10上拆分下来，单独加工成型，既简化了分气主体10的结构，从而有利于简化分气盖11和分气座12的结构，且分气圈20本身的结构也较为简单，因而有利于简化分气盘1的成型工艺，降低生产成本，且使得分气盘1可制造性高，有利于大批量的生产。
具体地，分气主体10的第一气流通道13，可以设在分气座12上，也可以设在分气盖11上，也可以由分气座12和分气盖11配合形成。分气圈20安装在第一气流通道13处，可以仅与分气座12配合，也可以仅与分气盖11配合，也可以同时与分气座12和分气盖11配合，具体的配合方式可以包括过盈配合、间隙配合、紧固件连接、焊接等方式。
由于第一气流通道13为供气体流动的空间，因而在第一气流通道13处设置分气圈20，使得分气盘1的该部位存在空间结构与实体结构并存的情况，容易出现空间结构局部变细、变窄等情况。因此，如果将分气圈20集成在分气盖11或分气座12上，会导致分气盖11或分气座12的结构复杂，采用常用 的铸造工艺成型时，模具较为复杂，成本高，且成型时脱模难度高，可制造性低，不利于批量生产。
而本方案将分气圈20拆分出来，单独加工成型，可以有效避免上述情况，简化分气盖11和分气座12的结构，从而简化模具结构，并降低脱模难度，进而降低生产成本，并显著提高分气盘1的可制造性，有利于批量生产。
在本申请的一个实施例中，分气主体10设有内环周壁121和外环周壁111，如图3所示。外环周壁111套设在内环周壁121外侧。第一气流通道13形成在内环周壁121与外环周壁111之间。分气主体10设有至少一个进气通道122，如图2和图3所示。进气通道122与第一气流通道13连通。
具体地，内环周壁121设在分气座12上，如图5所示。外环周壁111设在分气盖11上，如图5所示。
在该实施例中，第一气流通道13形成在内环周壁121与外环周壁111之间，由于内环周壁121和外环周壁111都是整圈的环形结构，因而第一气流通道13也是整圈的环形结构。这样，进气通道122输送的气体进入第一气流通道13后，可以沿着第一气流通道13流动，保证气体能够扩散至整圈。
相较于将第一气流通道13设计成非整圈环形结构的方案，本方案有利于保证气体扩散的均匀性，也有利于燃气与空气的混合均匀性，避免出现气体间断式分布导致一圈火焰出现分段的情况。
同时，分气座12和分气盖11配合形成第一气流通道13，只需合理设计分气座12的内环周壁121和分气盖11的外环周壁111的尺寸和位置，装配后内环周壁121和外环周壁111之间的空间即可形成第一气流通道13。相较于单独利用分气盖11或单独利用分气座12来形成第一气流通道13的方案，本方案无需在分气盖11或分气座12上单独预设第一气流通道13的空间结构，有利于减少分气盖11或分气座12上的槽孔类结构，从而进一步简化模具结构，进一步降低脱模难度，进而进一步降低生产成本，进一步提高分气盘1的可制造性。
在本申请的一个实施例中，分气主体10设有第二气流通道123，如图3所示。第二气流通道123位于第一气流通道13内侧。分气圈20包括引流部21，如图3所示。引流部21与外环周壁111接触，并覆盖第一气流通道13 的顶部开口的一部分。
在该实施例中，第一气流通道13位于外侧，为外侧通道，在燃烧器2点燃后能够形成外圈火焰；第二气流通道123位于内侧，为内侧通道，在燃烧器2点燃后能够形成内圈火焰。这样，灶具使用时具有内圈火焰和外圈火焰，有利于提高加热均匀性，也便于用户根据需求调节火力大小。
其中，分气圈20的引流部21与分气盖11的外环周壁111接触，并覆盖第一气流通道13的顶部开口的一部分，相当于引流部21覆盖了第一气流通道13的顶部开口的外部区域。这样，气体进入第一气流通道13后会受到引流部21的阻挡，从而产生越过第一气流通道13的开口并向内侧流动的趋势，避免燃气向外侧流动造成损失，且有利于燃气与空气充分混合扩散，从而有利于燃烧器2燃烧聚能。
同时，受到引流部21的阻挡，气体也会产生沿着第一气流通道13旋转流动的趋势，从而有利于燃气扩散均匀。
在本申请的一个实施例中，引流部21沿第一气流通道13的周向延伸，并环绕第一气流通道13的中心轴线。
在该实施例中，引流部21呈环形，与分气圈20的形状适配，避免了分气圈20局部凸出，简化了分气圈20的结构，从而简化加工工艺，降低生产成本。同时，环形的引流部21与环形的第一气流通道13的形状适配，能够对第一气流通道13周圈各个部位的燃气进行引流，从而有利于提高燃气的扩散均匀性。
在本申请的一个实施例中，如图3所示，第二气流通道123的中心轴线与分气圈20的中心轴线平行或共线。进气通道122的中心轴线相对于第二气流通道123的中心轴线倾斜设置。沿着靠近分气圈20的方向，进气通道122的中心轴线朝外倾斜设置。
在该实施例中，第二气流通道123的中心轴线与分气圈20的中心轴线平行或共线，一般沿竖直方向。将进气通道122的中心轴线设置成上述倾斜方向，对于进气通道122的数量为多个的情况，有利于缩小多个进气通道122的入口之间的距离，便于通过一个端口向多个进气通道122供气，从而简化燃烧器2的结构。
在本申请的一个实施例中，进气通道122和第二气流通道123设在分气座 12上。进气通道122的数量为多个，如图2所示，多个进气通道122沿分气座12的周向间隔设置。
在该实施例中，将进气通道122和第二气流通道123设在分气座12上，能够大大简化分气盖11的结构，并简化分气盖11与分气座12的装配工序。通过多个进气通道122向第一气流通道13供气，使得第一气流通道13的周向多个部位能够同时进气，并多方位旋转扩散，从而有利于进一步提高燃气与空气的混合均匀性。
进一步地，多个进气通道122沿分气座12的周向均匀分布。在图2中，进气通道122的数量为四个，四个进气通道122沿分气座12的周向均匀分布。
在本申请的一个实施例中，分气盖11设有定位台阶112，如图3所示。分气圈20为环形板状结构，如图5所示。分气圈20被定位台阶112支撑并定位。
在该实施例中，将分气圈20设计为环形板状结构，结构非常简单，便于根据需要采用适合的工艺进行成型。分气盖11的定位台阶112能够对分气圈20起到定位作用和支撑作用，从而降低分气圈20的装配难度。
具体地，定位台阶112包括第一台阶面1121和第二台阶面1122，如图3所示。第二台阶面1122的两端分别连接第一台阶面1121和外环周壁111。分气圈20被第二台阶面1122支撑。
在该实施例中，第一台阶面1121、第二台阶面1122、外环周壁111依次相连，使得分气盖11大致形成两级台阶的结构，定位台阶112位于第一气流通道13的外侧和上侧，则将分气圈20置于第二台阶面1122上，即可保证分气圈20能够对第一气流通道13的顶部开口进行遮挡，以对第一气流通道13内的气流起到引导作用。
在本申请的一个实施例中，分气圈20与第一台阶面1121过盈配合。
在该实施例中，分气圈20与第一台阶面1121采用过盈配合的方式，能够保证分气圈20的位置准确性，并防止分气圈20随意移动，提高分气圈20的使用可靠性。
在本申请的另一个实施例中，分气圈20与第一台阶面1121间隙配合。
气圈与第一台阶面1121采用间隙配合的方式，能够防止装卸时分气圈20 与分气主体10发生摩擦导致卡滞等情况，有利于降低装卸难度。
在本申请的一个实施例中，分气圈20与分气主体10可拆卸连接。
分气圈20与分气主体10采用可拆卸连接的方式，便于用户在使用过程中根据需要安装分气圈20或者拆卸分气圈20。装上分气圈20，火力相对较均匀；而拆下分气圈20，火力相对较猛。这增加了用户的选择范围，有利于提高用户的使用舒适度。
在本申请的一个实施例中，分气盖11的顶端外轮廓线113呈圆形。如图4所示，分气盖11的顶端外轮廓线113的直径D在125mm至135mm的范围内，如125mm、128mm、130mm、132mm、135mm等。
现有的分气盘1的外径一般以分气盖11的顶端轮廓线的直径为准。经过研究后发现，分气盘1的外径越大，燃气的分散能力相对较好。现有的分气盘1的外径一般在120mm以内，而本方案将分气盘1的外径增加至125mm至135mm范围内，因而能够提高燃气的分散能力，提高燃烧聚能效果。
在本申请的一个实施例中，分气圈20为冲压件。分气盖11和分气座12为压铸件。
分气圈20采用冲压件，可以利用普通的冲压工艺，也可以利用激光落料等工艺进行制备，有利于保证分气盘1的强度，同时简化了生产工艺，可制造性高。
而分气盖11和分气座12采用压铸件，即均通过压铸工艺一体成型，结构强度高，有利于保证分气盘1的强度，且工艺成熟，有利于大批量生产。
在本申请的一个实施例中，分气盖11和分气座12中的一个设有定位孔124，另一个设有定位凸起114，定位凸起114与定位孔124凹凸配合，如图3所示。
在该实施例中，定位孔124和定位凸起114的设置，在分气盖11与分气座12的装配过程中，能够起到良好的定位作用，从而降低分气盖11与分气座12的装配难度。
进一步地，定位凸起114的高度大于定位孔124的深度，使得定位凸起114的一部分可以穿过定位孔124并凸出于定位孔124，则将定位凸起114凸出于定位孔124的部分压平，使其面积大于定位孔124的截面积，即可防止分 气盖11与分气座12分离，起到连接分气盖11与分气座12的作用。
如图6所示，根据本申请第二方面的一个实施例提供的燃烧器2，包括：如第一方面的实施例中任一项的分气盘1、炉头202和火盖204。该燃烧器2因包括上述第一方面的任一实施例提供的分气盘1，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
具体地，炉头202与分气盘1的第一气流通道13连通，用于向第一气流通道13供气。火盖204盖设在分气盘1上，火盖204设有与第一气流通道13连通的火孔206。
其中，火盖204包括第一火盖2042和第二火盖2044，第一火盖2042的火孔206与第一气流通道13连通，第二火盖2044的火孔206与第二气流通道123连通。
第一火盖2042封盖第一气流通道13，第二火盖2044封盖第二气流通道123，燃气在火盖204与分气盘1之间形成的腔体内由火盖204导向燃烧。
如图8所示，根据本申请第三方面的一个实施例提供的燃气灶具3，包括：灶具主体302和如第二方面的实施例的燃烧器2，燃烧器2与灶具主体302相连。
根据本方面第三方面的一个实施例提供的燃气灶具3，该燃气灶具3因包括上述第二方面的实施例提供的燃烧器2，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
具体地，如图7和图9所示，灶具主体302包括壳体3022、面板3028、输气管3030、点火装置3026、熄火保护装置3024、阀体3032等结构。熄火保护装置3024包括热电偶3034，点火装置3026包括点火针3036。面板3028安装在壳体3022上，并设有连接点火装置3026、熄火保护装置3024的旋钮等操作部，供用户操控燃气灶具。燃烧器2设在壳体3022内，燃烧器2的炉头202与输气管3030相连，输气管3030用于为燃烧器2输送燃气，输气管3030连接有阀体3032。
下面结合附图介绍一个具体实施例。
本申请的一个具体实施例提供了一种分气盘1，包括分气盖11、分气座12和分气圈20。分气圈20为环形板状结构。分气圈20整体也呈环形结构， 内壁面设有定位台阶112和外环周壁111，底部均匀设有多个定位柱。分气座12设有内环周壁121和四个沿周向均匀分布的进气通道122，进气通道122的出口贯穿内环周壁121，中部设有第二气流通道123，外部设有多个定位孔124。
分气盖11和分气座12为压铸件，分气圈20为冲压件，装配时将分气盖11的定位柱插入分气座12的定位孔124中，然后采用铆接工艺或者螺钉等紧固件固定连接，并把分气圈20预装在分气盖11的定位台阶112上即可。使用时用户可以根据需要将分气圈20拆下。这种装配方式工艺简单、生产效率高。
第二气流通道123的中心轴线沿竖直方向，进气通道122的中心轴线相对于竖直方向倾斜设置，且沿着由下向上的方向，进气通道122向外倾斜延伸。在四个进气通道122和分气圈20的配合下，进入第一气流通道13的燃气会多方位旋转扩散，与空气混合度高。
分气座12的外环周壁111与分气盖11的内环周壁121之间形成第一气流通道13。分气圈20的内周区域(即引流部21)覆盖第一气流通道13的外周区域，使得进气通道122进入第一气流通道13的气体有向上且向内流动的趋势，这有利于燃烧器2燃烧聚能。
同时，第一气流通道13为环形通道，连通四个进气通道122，且中心还有第二气流通道123，便于燃气均匀扩散，并与空气充分混合。
综上，分气盖11和分气座12均采用压铸工艺一体成型，分气圈20采用激光落料或者冲压工艺，既保证了分气盘1的强度，同时简化了分气盘1的生产工艺，可制造性高，有利于大批量的生产，降低了成本。同时，燃气在分气圈20的导流下能够充分混合扩散，使得燃烧器2聚能，提高了燃烧器2的效率。
在本申请中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”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申请和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本申请的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。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例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (16)

  1. 一种分气盘，其中，包括：
    分气主体，所述分气主体包括分气座和与所述分气座相连的分气盖，所述分气主体设有第一气流通道；
    分气圈，所述分气圈安装在所述第一气流通道处，并与所述分气座和/或所述分气盖相配合，用于引导所述第一气流通道内的气体流动。
  2. 根据权利要求1所述的分气盘，其中，
    所述分气主体设有内环周壁和外环周壁，所述外环周壁套设在所述内环周壁外侧，所述第一气流通道形成在所述内环周壁与所述外环周壁之间；
    所述分气主体设有至少一个进气通道，所述进气通道与所述第一气流通道连通。
  3. 根据权利要求2所述的分气盘，其中，
    所述内环周壁设在所述分气座上，所述外环周壁设在所述分气盖上。
  4. 根据权利要求2所述的分气盘，其中，
    所述分气主体设有第二气流通道，所述第二气流通道位于所述第一气流通道内侧；
    所述分气圈包括引流部，所述引流部与所述外环周壁接触，并覆盖所述第一气流通道的顶部开口的一部分。
  5. 根据权利要求4所述的分气盘，其中，
    所述引流部沿所述第一气流通道的周向延伸，并环绕所述第一气流通道的中心轴线。
  6. 根据权利要求4所述的分气盘，其中，
    所述第二气流通道的中心轴线与所述分气圈的中心轴线平行或共线；
    所述进气通道的中心轴线相对于所述第二气流通道的中心轴线倾斜设置；
    沿着靠近所述分气圈的方向，所述进气通道的中心轴线朝外倾斜设置。
  7. 根据权利要求6所述的分气盘，其中，
    所述进气通道和所述第二气流通道设在所述分气座上；
    所述进气通道的数量为多个，多个所述进气通道沿所述分气座的周向间隔 设置。
  8. 根据权利要求2至7中任一项所述的分气盘，其中，
    所述分气盖设有定位台阶；
    所述分气圈为环形板状结构，所述分气圈被所述定位台阶支撑并定位。
  9. 根据权利要求8所述的分气盘，其中，
    所述定位台阶包括第一台阶面和第二台阶面，所述第二台阶面的两端分别连接所述第一台阶面和所述外环周壁；
    所述分气圈被所述第二台阶面支撑。
  10. 根据权利要求9所述的分气盘，其中，
    所述分气圈与所述第一台阶面过盈配合；或者
    所述分气圈与所述第一台阶面间隙配合。
  11. 根据权利要求1至7中任一项所述的分气盘，其中，
    所述分气圈与所述分气主体可拆卸连接。
  12. 根据权利要求1至7中任一项所述的分气盘，其中，
    所述分气盖的顶端外轮廓线呈圆形，所述分气盖的顶端外轮廓线的直径在125mm至135mm的范围内。
  13. 根据权利要求1至7中任一项所述的分气盘，其中，
    所述分气圈为冲压件；和/或
    所述分气盖和所述分气座为压铸件。
  14. 根据权利要求1至7中任一项所述的分气盘，其中，
    所述分气盖和所述分气座中的一个设有定位孔，另一个设有定位凸起，所述定位凸起与所述定位孔凹凸配合。
  15. 一种燃烧器，其中，包括：
    如权利要求1至14中任一项所述的分气盘；
    炉头，所述炉头与所述分气盘的第一气流通道连通，用于向所述第一气流通道供气；
    火盖，所述火盖盖设在所述分气盘上，所述火盖设有与所述第一气流通道连通的火孔。
  16. 一种燃气灶具，其中，包括：
    灶具主体；和
    如权利要求15所述的燃烧器，所述燃烧器与所述灶具主体相连。
PCT/CN2021/087631 2020-07-06 2021-04-16 分气盘、燃烧器和燃气灶具 WO2022007463A1 (zh)

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