Upper air inlet burner and gas cooker

Abstract

The upper air inlet burner is divided into a left gas groove and a right gas groove through a partition plate and an outer ring gas groove, and gas entering from an outer ring gas inlet hole can flow to the left gas groove and the right gas groove through two gas flow channels respectively, so that the flow speed of the gas can be reduced, the gas and air can be mixed more sufficiently, and the combustion efficiency is improved. And meanwhile, the fuel gas in the left fuel gas groove and the fuel gas in the right fuel gas groove can flow forwards in the opposite directions, and then the fuel gas concentration at all positions in the outer ring fuel gas groove can be more uniform. By arranging the arc-shaped baffles, when gas flows to the outer ring gas groove from the communicating holes and collides with the outer ring wall, the arc-shaped baffles can prevent the gas from continuously flowing upwards, so that the flow speed of the gas is reduced, the gas can flow forwards to the side, away from the communicating holes, of the outer ring gas groove, and therefore the gas in the outer ring gas groove can be distributed more evenly. In addition, the utility model further discloses a gas cooker with the upper air inlet burner.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas appliance technical field, especially an upper air inlet burner and gas stove. BACKGROUND

[0002] The upper air inlet burner usually comprises a distributor, a center fire cover and an outer ring fire cover, the distributor is provided with a center gas groove and an outer ring gas groove, and the distributor is further provided with a center injection pipe and an outer ring injection pipe, the gas entering the outer ring gas groove from the outer ring injection pipe can only flow in a clockwise direction or an anticlockwise direction, that is, can only flow in one direction, which leads to slow mixing speed of the gas and air, insufficient mixing and high gas concentration on one side of the outer ring gas groove close to the gas outlet of the outer ring injection pipe, and further leads to uneven gas distribution in the outer ring gas groove, affecting the combustion effect of the outer ring fire. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides an upper air inlet burner, which can make the gas distribution in the outer ring gas groove more uniform, the gas and air mixing more sufficient, and the combustion effect of the outer ring fire improved.

[0004] The upper air inlet burner according to the embodiment of the utility model, including: base, air inlet seat, be equipped with in the below of the base, the air inlet seat open with center air inlet channel and two outer ring air inlet channel, the lateral wall of the air inlet seat open with center air inlet hole and outer ring air inlet hole, the center air inlet hole with the center air inlet channel intercommunication, the outer ring air inlet hole with two the outer ring air inlet channel intercommunication, air outlet seat, be equipped with in the above of the base, the air outlet seat open with center air outlet channel and two outer ring air outlet channel with the center air inlet channel, two outer ring air inlet channel one to one correspondence intercommunication, the air outlet seat still install with the center air outlet channel intercommunication center nozzle and with two the outer ring air outlet channel corresponding intercommunication outer ring nozzle, fire divider, install in the above of the base, the upper surface of the fire divider open with center gas groove and outer ring gas groove, the outer ring gas groove around set in the outer periphery of the center gas groove, the center gas groove above cover set with center fire cover, the outer ring gas groove above cover set with outer ring fire cover, center ejector pipe, be equipped with in the below of the fire divider and with the center gas groove intercommunication, the air inlet end of the center ejector pipe faces the center nozzle, two outer ring ejector pipes, be equipped with in the below of the fire divider and with the outer ring gas groove intercommunication, two The outer ring ejector pipe is arranged side by side along the left and right direction, and the front end of two the outer ring ejector pipe one to one correspondence faces two the outer ring nozzle, wherein, still including baffle and arc baffle, the inner ring wall of the outer ring gas groove open with the rear end of two the outer ring ejector pipe corresponding intercommunication communication hole, the baffle is arranged in the outer ring gas groove and is located between two The communication hole, the baffle divides the outer ring gas groove into left gas groove and right gas groove, the arc baffle is equipped with in the above of the baffle and extends to the left and right sides of the baffle, the arc baffle can shield part the left gas groove and part the right gas groove.

[0005] The upper air inlet burner according to the embodiment of the utility model has at least the following beneficial effects:

[0006] In the upper air inlet burner, the gas entering from the outer ring air inlet hole can be distributed to two gas flow channels, the gas is respectively delivered to the left gas groove and the right gas groove through the two gas flow channels, so that the gas in the left gas groove and the gas in the right gas groove can flow in opposite directions, and the gas concentration at each position in the outer ring gas groove is more uniform, and in the above structure, the gas flowing from the outer ring air inlet hole can be distributed to two gas flow channels, so that the flow rate of the gas can be reduced, the mixing of the gas and air is more sufficient, the sufficient combustion of the gas is facilitated, and the combustion efficiency is improved. In addition, by arranging the arc-shaped baffle, when the gas flows from the communication hole to the outer ring gas groove and hits the outer ring wall, the arc-shaped baffle can block the gas from flowing upward, so that the flow rate of the gas is reduced and the flow direction of the gas is changed, and then the gas flows forward to the side of the outer ring gas groove away from the communication hole, so that the gas distribution in the outer ring gas groove is more uniform, and the combustion effect of the upper air inlet burner is improved.

[0007] According to some embodiments of the utility model, the communication channel for connecting the two outer ring air inlet channels is arranged in the air inlet seat, and the outer ring air inlet hole is arranged in the side wall of one of the outer ring air inlet channels or the side wall of the communication channel.

[0008] According to some embodiments of the utility model, the center air inlet channel and the two outer ring air inlet channels are arranged in the up-down direction, and the center air inlet hole and the outer ring air inlet hole are arranged on the front side wall of the air inlet seat; the center air inlet channel and the two outer ring air inlet channels extend downward to the bottom wall of the air inlet seat and form air input holes in the bottom wall of the air inlet seat.

[0009] According to some embodiments of the utility model, the communication channel is arranged at the back side of the two outer ring air inlet channels, the two outer ring air inlet channels are arranged at the left side and the right side of the center air inlet channel, and the outer ring air inlet hole is arranged in the side wall of the outer ring air inlet channel at the left side of the center air inlet channel; the left end of the communication channel extends to the left side wall of the air inlet seat.

[0010] According to some embodiments of the utility model, the center injection pipe and the outer ring injection pipe are arranged at the back side of the air inlet seat and in the front-back direction, and the two communication holes are arranged at the back end of the corresponding outer ring injection pipe; the bottom wall of the left gas groove and the bottom wall of the right gas groove are gradually arranged upward from back to front, so that the back end of the outer ring injection pipe is located above the bottom wall of the outer ring gas groove, and the front end of the outer ring injection pipe is located below the bottom wall of the outer ring gas groove.

[0011] According to some embodiments of the utility model, the base is equipped with a first mounting part located at the rear side of the air inlet seat, the spark distributor is equipped with a second mounting part corresponding to the first mounting part, one of the first mounting part and the second mounting part is provided with a slot, the other is provided with a plug-in column capable of being plugged with the slot, the periphery of the slot is provided with a first guide surface, or the plug-in end of the plug-in column is provided with a second guide surface, the upper end of the air inlet seat is provided with a supporting surface, when the first mounting part and the corresponding second mounting part are plugged with each other, the front side bottom wall of the outer ring gas groove is overlapped on the supporting surface.

[0012] According to some embodiments of the utility model, the spark distributor, the partition plate, the center ejector pipe and the two outer ring ejector pipes are integrally formed, the base, the air inlet seat and the air outlet seat are integrally formed.

[0013] According to some embodiments of the utility model, the arc-shaped baffle extends from the outer ring wall of the outer ring gas groove to the inner ring wall in the radial direction of the outer ring gas groove, and a gap is formed between the inner side edge of the arc-shaped baffle and the inner ring wall of the outer ring gas groove.

[0014] According to some embodiments of the utility model, the support frame comprises a mounting plate and support plates located at opposite sides of the mounting plate, the support plates are bent downward from the edges of the mounting plate, the lower edges of each support plate are outwardly bent to form a folded edge, the folded edge is provided with a mounting hole, at least one recess is arranged between the mounting plate and the support plates, the side wall of the recess forms a reinforcing rib connecting the lower side wall of the mounting plate and the inner side wall of the support plate.

[0015] The base is provided with three downwardly extending support feet mounted on the mounting plate, two of the support feet are arranged close to one of the support plates, and the other support foot is arranged close to the other support plate.

[0016] The gas stove according to the embodiments of the utility model is provided with the upper air inlet burner of any one of the above embodiments.

[0017] The gas stove according to the embodiments of the utility model has at least the following beneficial effects:

[0018] In the gas stove according to the embodiments of the utility model, the upper air inlet burner of any one of the above embodiments is arranged, which can make the gas in the outer ring gas groove more uniformly distributed and the gas and air more fully mixed, thereby better improving the gas combustion efficiency of the gas stove during use, and facilitating the use of the gas stove, which is beneficial to improving the user experience.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the top-inlet burner according to an embodiment of the present utility model;

[0022] Figure 2 This is another schematic diagram of the top-inlet burner according to an embodiment of the present utility model;

[0023] Figure 3 This is a partial schematic diagram of the top-inlet burner according to an embodiment of the present utility model;

[0024] Figure 4 for Figure 3 A cross-sectional schematic diagram of a middle-upper air intake burner;

[0025] Figure 5 for Figure 3 Another cross-sectional schematic diagram of the upper-middle air intake burner;

[0026] Figure 6 for Figure 3 Another cross-sectional schematic diagram of the upper-middle air intake burner;

[0027] Figure 7 for Figure 3 Another cross-sectional schematic diagram of the upper-middle air intake burner;

[0028] Figure 8 This is a schematic diagram of the flame distributor according to an embodiment of the present utility model;

[0029] Figure 9 This is another schematic diagram of the fire distributor according to an embodiment of the present utility model;

[0030] Figure 10 This is a schematic diagram of the base according to an embodiment of the present utility model;

[0031] Figure 11 This is another schematic diagram of the base according to an embodiment of the present utility model;

[0032] Figure 12 This is another schematic diagram of the base according to an embodiment of the present utility model;

[0033] Figure 13 This is a cross-sectional schematic diagram of the base according to an embodiment of the present utility model;

[0034] Figure 14It is a schematic view of the support frame of the utility model embodiment.

[0035] Figure 15 It is another schematic view of the support frame of the utility model embodiment.

[0036] Reference signs:

[0037] Base 100, air inlet seat 110, center air inlet channel 111, outer ring air inlet channel 112, communication channel 113, air input hole 114, air outlet seat 120, center air outlet channel 121, outer ring air outlet channel 122, center nozzle 123, outer ring nozzle 124, support surface 125, first mounting portion 130, plug-in column 131, second guide surface 132, support intersection 140;

[0038] Distributor 200, center gas groove 210, outer ring gas groove 220, left gas groove 221, right gas groove 222, inner ring wall 223, outer ring wall 224, communication hole 225, center ejection pipe 230, outer ring ejection pipe 240, partition 250, arc baffle 260, center fire cover 270, outer ring fire cover 280, second mounting portion 290, slot 291;

[0039] Support frame 300, mounting plate 310, support plate 320, folded edge 330, mounting hole 331, recess 340, reinforcing rib 350. DETAILED DESCRIPTION

[0040] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0041] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and the like, is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as the limitation of the utility model indicated or implied by the device or element with a specific orientation, a specific orientation and operation, therefore, cannot be understood as the limitation of the utility model.

[0042] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than and the like are not included in the number, above, below and the like are included in the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0043] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the specific meaning of the above words in the utility model can be determined by the person skilled in the art in the light of the specific content of the technical scheme.

[0044] Referring to Figures 1 to 13 The utility model discloses an upper air inlet burner, including base 100, air inlet seat 110, air outlet seat 120, fire divider 200, center ejector pipe 230 and outer ring ejector pipe 240. Air inlet seat 110 is located below base 100 and is provided with center air inlet channel 111 and two outer ring air inlet channels 112, and the side wall of air inlet seat 110 is provided with center air inlet hole and outer ring air inlet hole, and the center air inlet hole is communicated with center air inlet channel 111, and the outer ring air inlet hole is communicated with two outer ring air inlet channels 112. Air outlet seat 120 is located above base 100, and air outlet seat 120 is provided with center air outlet channel 121 and two outer ring air outlet channels 122 corresponding to center air inlet channel 111 and two outer ring air inlet channels 112, and air outlet seat 120 is further provided with center nozzle 123 communicated with center air outlet channel 121 and outer ring nozzle 124 communicated with two outer ring air outlet channels 122. Fire divider 200 is installed above base 100, and the upper surface of fire divider 200 is provided with center gas groove 210 and outer ring gas groove 220, and outer ring gas groove 220 is arranged around the periphery of center gas groove 210, and center gas groove 210 is provided with center fire cover 270, and outer ring gas groove 220 is provided with outer ring fire cover 280. Center ejector pipe 230 is located below fire divider 200 and is communicated with center gas groove 210, and the air inlet end of center ejector pipe 230 faces center nozzle 123. Two outer ring ejector pipes 240 are located below fire divider 200 and are communicated with outer ring gas groove 220, and the two outer ring ejector pipes 240 are arranged side by side along the left-right direction, and the front ends of the two outer ring ejector pipes 240 correspond to two outer ring nozzles 124. Wherein, the upper air inlet burner further comprises baffle 250 and arc-shaped baffle 260, the inner ring wall 223 of outer ring gas groove 220 is provided with communication hole 225 corresponding to the rear end of two outer ring ejector pipes 240, baffle 250 is arranged in outer ring gas groove 220 and is located between two communication holes 225, baffle 250 divides outer ring gas groove 220 into left gas groove 221 and right gas groove 222, arc-shaped baffle 260 is arranged above baffle 250 and extends to the left and right sides of baffle 250, and arc-shaped baffle 260 can shield part of left gas groove 221 and part of right gas groove 222.

[0045] In the upper air inlet burner, the two outer ring air inlet channels 112, the two outer ring nozzles 124 and the two outer ring injection pipes 240 are arranged, so that the gas entering from the outer ring air inlet holes can be distributed to the two outer ring air inlet channels 112, sprayed to the corresponding outer ring injection pipes 240 through the corresponding outer ring gas outlet channels 122 and outer ring nozzles 124, and then flow to the outer ring gas groove 220 through the outer ring injection pipes 240. The outer ring gas groove 220 is divided into the left gas groove 221 and the right gas groove 222 by arranging the partition plate 250, and the gas in the two outer ring injection pipes 240 can flow to the left gas groove 221 and the right gas groove 222 respectively, so that the gas in the left gas groove 221 and the gas in the right gas groove 222 can flow in opposite directions, thereby making the gas concentration at each position in the outer ring gas groove 220 more uniform, and in the above structure, the gas flowing from the outer ring air inlet holes can be distributed to the two gas flow channels and then conveyed to the outer ring gas groove 220 through the two gas flow channels, thereby reducing the flow rate of the gas and the concentration of the gas in the conveying process, making the mixing of the gas and air more sufficient, being beneficial to the full combustion of the gas, and thereby improving the combustion efficiency.

[0046] In addition, when the gas flows from the communication hole 225 to the outer ring gas groove 220, it directly hits the outer ring wall 224 and then directly flows upward to the fire hole of the outer ring fire cover 280, which can cause the side of the outer ring gas groove 220 close to the communication hole 225 to have greater firepower, and the side of the outer ring gas groove 220 away from the communication hole 225 to have smaller firepower due to less gas, therefore, in the embodiment of the utility model, the arc-shaped baffle 260 is arranged above the partition plate 250 and extends to the left and right sides of the partition plate 250, and the arc-shaped baffle 260 can block part of the left gas groove 221 and part of the right gas groove 222, so that when the gas flows from the communication hole 225 to the outer ring gas groove 220 and hits the outer ring wall 224, the arc-shaped baffle 260 can block the gas from flowing upward, so that the flow rate of the gas is reduced and the flow direction of the gas is changed, so that the gas flows forward to the side of the outer ring gas groove 220 away from the communication hole 225, thereby making the gas distribution in the outer ring gas groove 220 more uniform, which is beneficial to improving the combustion effect of the upper air inlet burner.

[0047] Referring to Figures 1 to 13 In some embodiments, the air inlet seat 110 is provided with a communication channel 113 for communicating the two outer ring air inlet channels 112, and the outer ring air inlet hole is arranged in the side wall of one of the outer ring air inlet channels 112.

[0048] By adopting the above structure, the gas flowing from the outer ring air inlet hole can flow into the outer ring air inlet channel 112 connected with the air near the outer ring, and then part of the gas can continue to flow into another outer ring air inlet channel 112 through the communication channel 113, so that the gas at the outer ring air inlet hole can be smoothly divided into the two outer ring air inlet channels 112.

[0049] It can be understood that, in order to facilitate the smooth division of the gas at the outer ring air inlet hole into the two outer ring air inlet channels 112, the outer ring air inlet hole can be provided in the side wall of one of the outer ring air inlet channels 112, or can be directly provided in the inner wall of the communication channel 113, which is not limited in the present application.

[0050] Referring to Figures 1 to 13 In some embodiments, the center air inlet channel 111 and the two outer ring air inlet channels 112 are arranged in the up-down direction, and the center air inlet hole and the outer ring air inlet hole are located on the front side wall of the air inlet seat 110; the center air inlet channel 111 and the two outer ring air inlet channels 112 extend downward to the bottom wall of the air inlet seat 110, and form air input holes 114 on the bottom wall of the air inlet seat 110.

[0051] By adopting the above structure, the air input holes 114 can make the gas in the center air inlet channel 111 and the outer ring gas channel mix with air more fully, thereby improving the combustion efficiency of the updraft burner. Specifically, when the gas flows into the center air inlet channel 111 from the center air inlet hole, the rapid flow of the gas in the center air inlet channel 111 forms a negative pressure state in the center air inlet channel 111, at which time external air can be sucked into the center air inlet channel 111 through the air input holes 114 at the lower end of the center air inlet channel 111, so that the gas in the center air inlet channel 111 can be fully mixed with air, which is conducive to improving the combustion efficiency of the gas in the center gas groove 210. Similarly, when the gas flows into the two outer ring air inlet channels 112 from the outer ring air inlet hole, the rapid flow of the gas in the outer ring air inlet channel 112 forms a negative pressure state in the outer ring air inlet channel 112, at which time external air can be sucked into the outer ring air inlet channel 112 through the air input holes 114 at the lower end of the outer ring air inlet channel 112, so that the gas in the outer ring air inlet channel 112 can be fully mixed with air, which is conducive to improving the combustion efficiency of the gas in the outer ring gas groove 220.

[0052] Referring to Figures 1 to 13 In some embodiments, the communication channel 113 is located at the rear side of the two outer ring air inlet channels 112, the two outer ring air inlet channels 112 are separately arranged on the left side and the right side of the center air inlet channel 111, and the outer ring air inlet hole is provided in the side wall of the outer ring air inlet channel 112 on the left side of the center air inlet channel 111; the left end of the communication channel 113 extends to the left side wall of the air inlet seat 110.

[0053] By adopting the above structure, the outer ring air inlet hole is directly arranged in the sidewall of the outer ring air passage 112 on the left side of the central air passage 111, so that part of the gas input by the outer ring air inlet hole can flow to the outer ring air passage 112 on the left side of the central air passage 111, and the other part of the gas can flow to the outer ring air passage 112 on the right side of the central air passage 111 through the communication passage 113, so that the gas in the outer ring air inlet hole can be branched. In this process, the rapid flow of the gas in the corresponding outer ring air passage 112 forms a negative pressure state in the outer ring air passage 112, at which time external air can be sucked into the outer ring air passage 112 through the air inlet hole 114 at the lower end of the corresponding outer ring air passage 112. At the same time, the rapid flow of the gas in the communication passage 113 also forms a negative pressure in the communication passage 113, at which time external air can be sucked into the communication passage 113 through the left end of the communication passage 113, and then flows into the outer ring air passage 112 on the right side, so that the gas and air in the communication passage 113 can be mixed more fully, thereby further improving the combustion efficiency of the gas in the outer ring gas groove 220.

[0054] With reference to Figures 1 to 13 In some embodiments, the central ejector pipe 230 and the outer ring ejector pipe 240 are located on the rear side of the air inlet seat 110 and arranged in the front-rear direction, and the two communication holes 225 are located at the rear end of the corresponding outer ring ejector pipe 240. The bottom wall of the left gas groove 221 and the bottom wall of the right gas groove 222 are gradually arranged upward from rear to front, so that the rear end of the outer ring ejector pipe 240 is located above the bottom wall of the outer ring gas groove 220, and the front end of the outer ring ejector pipe 240 is located below the bottom wall of the outer ring gas groove 220.

[0055] In the above structure, by gradually arranging the bottom wall of the left gas groove 221 and the bottom wall of the right gas groove 222 upward from rear to front, the rear end of the outer ring ejector pipe 240 is located above the bottom wall of the outer ring gas groove 220, and the front end of the outer ring ejector pipe 240 is located below the bottom wall of the outer ring gas groove 220, so that the reasonable layout of each component in the igniter 200 can be facilitated, and the overall volume of the igniter 200 can be reduced. In addition, by gradually arranging the bottom wall of the left gas groove 221 upward from rear to front, the gas in the left gas groove 221 can be guided to flow upward along the bottom wall from rear to front to the front end of the left gas groove 221. By gradually arranging the bottom wall of the right gas groove 222 upward from rear to front, the gas in the right gas groove 222 can be guided to flow upward along the bottom wall from rear to front to the front end of the right gas groove 222, that is, the flow of the gas can be guided.

[0056] With reference to Figures 1 to 13In some embodiments, the base 100 is provided with a first mounting portion 130 at the rear side of the air inlet seat 110, the igniter 200 is provided with a second mounting portion 290 corresponding to the first mounting portion 130, the second mounting portion 290 is provided with a slot 291, the first mounting portion 130 is provided with a plug-in column 131 capable of being plugged into the slot 291, and the plug-in end of the plug-in column 131 is provided with a second guide surface 132; the upper end of the air inlet seat 110 is provided with a support surface 125, when the first mounting portion 130 is plugged into the corresponding second mounting portion 290, the front side bottom wall of the outer ring gas groove 220 is overlapped on the support surface 125

[0057] In the above structure, the rear side of the igniter 200 is mounted on the base 100 through the mutual plugging of the second mounting portion 290 and the second mounting portion 290, and the front side of the igniter 200 can be directly overlapped on the support surface 125 of the air inlet seat 110, so that the igniter 200 can be supported and fixed from the front side and the rear side, so that the support of the base 100 on the igniter 200 is more balanced and stable, and in this structure, the igniter 200 and the base 100 are installed through plugging, so that the installation and disassembly of the igniter 200 and the base 100 are more simple and convenient. In addition, by providing the second guide surface 132 at the plug-in end of the plug-in column 131, the plug-in can be more accurately inserted into the slot 291 of the second mounting portion 290, so that the installation of the igniter 200 and the base 100 is further simple and convenient.

[0058] It can be understood that the second guide surface 132 can be a conical guide or a spherical guide surface, which is not limited in the present application.

[0059] It can be understood that in order to plug between the first mounting portion and the second mounting portion, the slot 291 can be provided in the second mounting portion 290, and the plug-in column 131 can be provided in the first mounting portion 130, or the slot 291 can be provided in the first mounting portion 130, and the plug-in column 131 can be provided in the second mounting portion 290, which is not limited in the present application.

[0060] It can be understood that in order to facilitate the accurate insertion of the guide column into the slot 291, the second guide surface 132 can be provided at the plug-in end of the guide column, or the first guide surface can be provided on the circumference of the slot 291, wherein the first guide surface can be a conical guide surface, which is not limited in the present application.

[0061] It can be understood that the number of first guide portions is the same as the number of second guide portions, and the number of first guide portions and the number of second guide portions can be one, two, three or more, which is not limited in the present application.

[0062] Referring toFigures 1 to 13 In some embodiments, the igniter 200, the partition 250, the central ejector pipe 230 and the two outer ring ejector pipes 240 are integrally formed; the base 100, the air inlet seat 110 and the air outlet seat 120 are integrally formed.

[0063] By adopting the above structure, the production and processing of the igniter 200 and the base 100 are facilitated, and the number of components that need to be assembled during installation of the upper air inlet burner is greatly reduced, so that during installation, the igniter 200 only needs to be installed to the base 100, which makes the disassembly and installation of the upper air inlet burner more simple and convenient, and greatly saves the assembly efficiency of the upper air inlet burner.

[0064] With reference to Figures 1 to 6 In some embodiments, the arc-shaped baffle 260 extends in the radial direction of the outer ring gas groove 220 close to the inner ring wall 223 from the outer ring wall 224, and a gap is formed between the inner side edge of the arc-shaped baffle 260 and the inner ring wall 223 of the outer ring gas groove 220.

[0065] Since the gas entering the outer ring gas groove 220 from the communication hole 225 is easy to hit the outer ring wall 224 due to the large flow rate, and then flows upward along the outer ring wall 224, by adopting the above structure, the arc-shaped baffle 260 can block the gas on the side close to the outer ring wall 224 from flowing upward, so that part of the gas can flow forward along the outer ring gas groove 220 at a reduced flow rate, and part of the gas can flow upward to the fire hole of the outer ring fire cover 280 through the gap between the arc-shaped baffle 260 and the inner ring wall 223, thereby avoiding the situation that the gas near the communication hole position cannot flow smoothly to the outer ring fire cover 280 due to the too large shielding area of the arc-shaped baffle 260, so that the gas distribution in the outer ring gas groove 220 is more uniform, and the gas can flow smoothly to the outer ring fire cover 280, thereby facilitating the improvement of the combustion effect of the outer ring fire.

[0066] It can be understood that the arc-shaped baffle 260 extends in the radial direction of the outer ring gas groove 220 close to the inner ring wall 223, specifically, the outer side wall of the arc-shaped baffle 260 can be abutted to the outer ring wall 224, or the arc-shaped baffle 260 can be directly lapped on the upper edge of the outer ring wall 224, or with reference to Figures 1 to 6 The lower surface of the arc-shaped baffle 260 can be coplanar with the upper edge of the outer ring wall 224, and the outer side wall of the arc-shaped baffle 260 can be coplanar with the outer ring wall 224. The specific arrangement of the arc-shaped baffle 260 is not limited in the present application.

[0067] It can be understood that, in order to avoid the situation that the gas near the communication port position cannot flow to the outer ring fire cover 280 smoothly due to the too large shielding area of the arc-shaped baffle 260, a gap can be arranged between the inner side edge of the arc-shaped baffle 260 and the inner ring wall 223 of the outer ring gas groove 220, or a through hole can be directly arranged in the part of the arc-shaped baffle 260 close to the inner ring wall 223, and the present application does not make specific limitation on this.

[0068] With reference to Figures 1 to 8 In some embodiments, the left gas groove 221 and the right gas groove 222 are both provided with mounting columns, and the arc-shaped baffle 260 is fixedly mounted on each mounting column through a threaded fastener, so that the structure is simple and convenient to disassemble and assemble.

[0069] With reference to Figures 1 to 15 In some embodiments, the upper air inlet burner further comprises a support frame 300, the support frame 300 comprises a mounting plate 310 and support plates 320 located on the opposite sides of the mounting plate 310, the support plates 320 are formed by downward bending the edges of the mounting plate 310, the lower edge of each support plate 320 is outwardly bent to form a bent edge 330, the bent edge 330 is provided with a mounting hole 331, at least one recess 340 is arranged between the mounting plate 310 and the support plate 320, the side wall of the recess 340 forms a reinforcing rib 350 connecting the lower side wall of the mounting plate 310 and the inner side wall of the support plate 320; the base 100 is provided with three support legs extending downward to be mounted on the mounting plate 310, two of the support legs are arranged close to one of the support plates 320, and the other support leg is arranged close to the other support plate 320.

[0070] In the above structure, by setting the support frame 300, the upper air inlet burner can be conveniently installed into the bottom shell of the gas stove, and the igniter 200 can be smoothly installed above the panel. By setting the support plate 320 to be bent downward from the edge of the mounting plate 310, the production and processing of the support frame 300 can be facilitated, and the structure of the support plate 320 can be strengthened. The setting of the folded edge 330 can facilitate the installation between the support frame 300 and the bottom shell. Specifically, the support frame 300 can be installed to the bottom shell by threading the threaded fastener through the mounting hole 331. In addition, by setting the groove 340 between the mounting plate 310 and the support plate 320, the side wall of the groove 340 extends downward to form the reinforcing rib 350 connecting the lower side wall of the mounting plate 310 and the inner side wall of the support plate 320. Therefore, the setting of the groove 340 and the reinforcing rib 350 can also strengthen the structural strength of the support frame 300. By arranging two support feet close to one of the support plates 320 and arranging the other support foot close to the other support plate 320, the support feet can be close to the groove 340 and the reinforcing rib 350, that is, the support feet are installed at the part with higher structural strength on the support frame 300. Therefore, the support frame 300 can more stably support the base 100 and the igniter 200, and the risk of deformation of the support frame 300 under pressure can be reduced.

[0071] It can be understood that the groove 340 can be formed by stamping the connection between the mounting plate 310 and the support plate 320. Therefore, the side wall of the groove 340 can form the reinforcing rib 350 connecting the lower side wall of the mounting plate 310 and the inner side wall of the support plate 320, and the processing method is simple and easy to implement.

[0072] The utility model discloses an embodiment further proposes a gas stove, the gas stove is provided with the upper air inlet burner of any one embodiment above.

[0073] In the gas stove of the embodiment of the utility model, by setting the upper air inlet burner of any one embodiment, the gas distribution in the outer ring gas groove 220 can be more uniform, and the gas and air mixing can be more sufficient. Therefore, the gas combustion efficiency of the gas stove during use can be better improved, and the use of the gas stove can be facilitated, which is beneficial to improving the use experience of the user.

[0074] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A top-inlet burner, characterized in that, include: Base (100); An air intake seat (110) is located below the base (100). The air intake seat (110) has a central air intake channel (111) and two outer ring air intake channels (112). The side wall of the air intake seat (110) has a central air intake hole and an outer ring air intake hole. The central air intake hole is connected to the central air intake channel (111), and the outer ring air intake hole is connected to the two outer ring air intake channels (112). An air outlet seat (120) is located above the base (100). The air outlet seat (120) has a central air outlet channel (121) and two outer ring air outlet channels (122) that are connected to the central air inlet channel (111) and the two outer ring air inlet channels (112) respectively. The air outlet seat (120) is also equipped with a central nozzle (123) that is connected to the central air outlet channel (121) and an outer ring nozzle (124) that is connected to the two outer ring air outlet channels (122). A flame distributor (200) is installed above the base (100). The upper surface of the flame distributor (200) is provided with a central gas groove (210) and an outer ring gas groove (220). The outer ring gas groove (220) is arranged around the outer periphery of the central gas groove (210). A central flame cap (270) is provided on the top of the central gas groove (210), and an outer ring flame cap (280) is provided on the top of the outer ring gas groove (220). A central ejector tube (230) is located below the flame distributor (200) and connected to the central gas tank (210), with the air inlet end of the central ejector tube (230) facing the central nozzle (123). Two outer ring ejector tubes (240) are located below the flame distributor (200) and connected to the outer ring gas tank (220). The two outer ring ejector tubes (240) are arranged side by side in the left-right direction, and the front ends of the two outer ring ejector tubes (240) are respectively facing the two outer ring nozzles (124). The system also includes a partition (250) and an arc-shaped baffle (260). The inner ring wall (223) of the outer ring gas channel (220) is provided with a connecting hole (225) corresponding to the rear end of the two outer ring ejector tubes (240). The partition (250) is disposed in the outer ring gas channel (220) and located between the two connecting holes (225). The partition (250) divides the outer ring gas channel (220) into a left gas channel (221) and a right gas channel (222). The arc-shaped baffle (260) is disposed above the partition (250) and extends to the left and right sides of the partition (250). The arc-shaped baffle (260) can block part of the left gas channel (221) and part of the right gas channel (222).

2. The top-inlet burner according to claim 1, characterized in that, The air intake seat (110) has a connecting channel (113) for connecting the two outer ring air intake channels (112). The outer ring air intake hole is inserted through the side wall of one of the outer ring air intake channels (112), or the outer ring air intake hole is inserted through the side wall of the connecting channel (113).

3. The top-inlet burner according to claim 2, characterized in that, The central air intake channel (111) and the two outer ring air intake channels (112) are arranged in the vertical direction, and the central air intake hole and the outer ring air intake hole are located on the front side wall of the air intake seat (110). The central air intake channel (111) and the two outer ring air intake channels (112) extend downward to penetrate the bottom wall of the air intake seat (110) and form an air input hole (114) on the bottom wall of the air intake seat (110).

4. The top-inlet burner according to claim 3, characterized in that, The connecting channel (113) is located behind the two outer ring air intake channels (112). The two outer ring air intake channels (112) are respectively located on the left and right sides of the central air intake channel (111). The outer ring air intake hole passes through the side wall of the outer ring air intake channel (112) on the left side of the central air intake channel (111). The left end of the connecting channel (113) extends to the left to penetrate the left side wall of the air intake seat (110).

5. The top-inlet burner according to claim 1, characterized in that, The central ejector tube (230) and the outer ring ejector tube (240) are both located on the rear side of the air intake seat (110) and arranged in the front-rear direction. The two connecting holes (225) are both located at the rear end of the corresponding outer ring ejector tube (240). The bottom walls of the left gas tank (221) and the right gas tank (222) are arranged from back to front and upward, so that the rear end of the outer ring ejector tube (240) is located above the bottom wall of the outer ring gas tank (220), and the front end of the outer ring ejector tube (240) is located below the bottom wall of the outer ring gas tank (220).

6. The top-inlet burner according to claim 5, characterized in that, The base (100) is provided with a first mounting part (130) located behind the air intake seat (110), and the fire distributor (200) is provided with a second mounting part (290) corresponding to the first mounting part (130). One of the first mounting part (130) and the second mounting part (290) is provided with a slot (291), and the other is provided with a plug-in post (131) that can be plugged into the slot (291). The periphery of the slot (291) has a first guide surface, or the plug-in end of the plug-in post (131) has a second guide surface (132). The upper end of the air intake seat (110) has a support surface (125). When the first mounting part (130) and the corresponding second mounting part (290) are inserted into each other, the front bottom wall of the outer ring gas groove (220) overlaps the support surface (125).

7. The top-inlet burner according to claim 1, characterized in that, The fire distributor (200), the partition plate (250), the central ejector tube (230), and the two outer ring ejector tubes (240) are integrally formed. The base (100), the air inlet (110), and the air outlet (120) are integrally formed.

8. The top-inlet burner according to claim 1, characterized in that, The arc-shaped baffle (260) extends from the outer ring wall (224) of the outer ring gas groove (220) in the radial direction of the outer ring gas groove (220) and approaches the inner ring wall (223), and there is a gap between the inner edge of the arc-shaped baffle (260) and the inner ring wall (223) of the outer ring gas groove (220).

9. The top-inlet burner according to claim 1, characterized in that, It also includes a support frame (300), which includes a mounting plate (310) and support plates (320) located on opposite sides of the mounting plate (310). The support plates (320) are formed by bending the edge of the mounting plate (310) downward. The lower edge of each support plate (320) is bent outward to form a flange (330). The flange (330) has a mounting hole (331). At least one inwardly recessed groove (340) is provided between the mounting plate (310) and the support plate (320). The sidewall of the groove (340) forms a reinforcing rib (350) connecting the lower sidewall of the mounting plate (310) and the inner sidewall of the support plate (320). The base (100) is provided with three support legs that extend downward to the mounting plate (310), two of which are arranged close to one of the support plates (320) and the other support leg is arranged close to the other support plate (320).

10. A gas stove, characterized in that, The unit is equipped with an upper air intake burner as described in any one of claims 1 to 9.

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