WO2020047917A1 - Bottom cup, burner, and gas cooker - Google Patents

Abstract

A bottom cup (10), a burner (100), and a gas cooker. The bottom cup (10) comprises a bottom cup cover (11) and a bottom cup base (12). The bottom cup cover (11) comprises a top wall (111) and a first mounting wall (112); the top wall (111) is provided with a gas outlet (114); the first mounting wall (112) is convexly provided on the top wall (111); the bottom cup cover (11) is mounted on the bottom cup base (12); the bottom cup base (12) comprises a bottom wall (121) and a second mounting wall (122); the second mounting wall (122) is convexly provided on the bottom wall (121); the top wall (111) is opposite to the bottom wall (121); the bottom wall (121) and the second mounting wall (122) together form a first mounting slot (124); the first mounting wall (112) is at least partially embedded into the first mounting slot (124) and is at least partially overlapped with the second mounting wall (122); an ejection channel (101) with a venturi effect is provided in the bottom cup (10); the ejection channel (101) is communicated with the gas outlet (114). In a heating or cooling process of the burner (100), a joint between the first mounting wall (112) and the second mounting wall (122) can further ensure better sealing performance due to expansion and contraction, so that the sealing performance of mounting the bottom cup cover (11) on the bottom cup base (12) is good.

Description

Bottom cup and burner and gas cooker

Priority information

This application requests the priority and rights of the patent application filed with the State Intellectual Property Office of China on September 4, 2018, with a patent application number of 2018110275140, and the patent application number of 2018214510022, which was filed with the Chinese State Intellectual Property Office on September 4, 2018 , And incorporated by reference in its entirety.

Technical field

The present application relates to the technical field of cooking appliances, and in particular, to a bottom cup, a burner and a gas cooker.

Background technique

The burner in the related art includes a bottom cup and a flame thrower provided on the bottom cup. The mixture of air and gas is supplied from the bottom cup to the flamethrower for combustion. However, the sealing effect of the bottom cup of the related art is not good, and it is easy to cause the bottom cup to leak air, resulting in an insufficient amount of air and gas mixture in the flamethrower, which in turn affects the normal operation of the burner.

Summary of the Invention

The application provides a bottom cup, a burner and a gas cooker.

The bottom cup of the burner according to the embodiment of the present application, the bottom cup includes a bottom cup lid body and a bottom cup base body, the bottom cup lid body includes a top wall and a first mounting wall, and the top wall is provided with an air outlet, The first mounting wall is convexly disposed on the top wall, the bottom cup cover body is mounted on the bottom cup base body, the bottom cup base body includes a bottom wall and a second mounting wall, and the second mounting wall The bottom wall is convexly arranged, the top wall is opposite to the bottom wall, the bottom wall and the second mounting wall together form a mounting groove, and the first mounting wall is at least partially embedded in the mounting groove. And at least partially overlaps with the second mounting wall, an ejection channel having a Venturi effect is provided in the bottom cup, and the ejection channel communicates with the air outlet.

In the bottom cup of the burner, during the heating or cooling of the burner, the connection between the first mounting wall and the second mounting wall can be thermally expanded and contracted to further ensure better sealing performance, so that the bottom cup lid body The sealing performance installed on the bottom cup base body is better, and the bottom cup is not easy to leak air. This will not cause the insufficient amount of air and gas mixture in the burner's flame burner, which will affect the normal operation of the burner.

In some embodiments, the bottom cup lid body is riveted with the bottom cup base body.

In some embodiments, the bottom cup cover body includes a first channel portion, the first channel portion is convexly disposed on the top wall, the first mounting wall surrounds the first channel portion, and the first A channel portion is provided with a first groove. The bottom cup base includes a second channel portion, the second channel portion is located at the bottom of the mounting groove, and the second mounting wall surrounds the second channel portion. The second channel portion is provided with a second groove, the first channel portion and the second channel portion are connected, and the first groove and the second groove together form the ejection channel.

In some embodiments, an end surface of the first mounting wall is in contact with a top surface of the bottom wall.

In some embodiments, a contact between an end surface of the first mounting wall and a top surface of the bottom wall is processed by a finishing process.

In some embodiments, the bottom cup cover body is formed with a first joint surface opposite to the bottom wall, a top surface of the bottom wall is formed with a second joint surface, and the second mounting wall surrounds the A second joint surface, where the first joint surface and the second joint surface are joined.

In some embodiments, at least one of the first joint surface and the second joint surface is processed by a finishing process.

In some embodiments, the bottom cup is provided with a first connection channel, the air outlet includes an outer ring air outlet, and the first connection channel connects the air outlet end of the ejection channel and the outer ring outlet. Breath.

In some embodiments, the outer ring air outlet includes a first outer ring air outlet and a second outer ring air outlet disposed at intervals. The first connection channel includes a first sub-connection channel and a second sub-connection channel. The first sub-connection channel and the second sub-connection channel are respectively connected to both sides of an air outlet end of the ejection channel, and the first sub-connection channel communicates with the first outer ring air outlet and the ejection channel. Channel, the second sub-connection channel communicates with the second outer ring air outlet and the ejection channel.

In some embodiments, the outer ring air outlet is arranged in an arc shape.

In some embodiments, the first sub-connection channel is arc-connected to the air outlet end of the ejection channel, and the second sub-connection channel is arc-connected to the air outlet end of the ejection channel.

In some embodiments, the air outlet includes an inner ring air outlet, the inner ring air outlet includes a first inner ring air outlet and a second inner ring air outlet, and a second inner ring is provided in the bottom cup. A connection channel, the second connection channel includes a third sub-connection channel and a fourth sub-connection channel, the third sub-connection channel communicates the first sub-connection channel and the first inner ring air outlet, and the first A four sub-connection channel communicates with the second sub-connection channel and the second inner ring air outlet, and a top surface of the top wall located between the first inner ring air outlet and the second inner ring air outlet A secondary air passage is formed at the part.

In some embodiments, a positioning portion on the surface of the top wall is formed in the secondary air passage.

In some embodiments, the bottom cup is provided with a primary air cavity, and the primary air cavity is protruded from a side of at least one of the bottom cup lid body and the bottom cup base, and The primary air cavity is provided with a primary air cavity communicating with the ejection channel.

In some embodiments, at least one of the bottom cup lid body and the bottom cup base body has a first center, the primary air cavity has a second center, and the first center and the second center Off-center setting.

In some embodiments, the planar shape of the bottom cup base is an arc shape, the first center is the center of the circle where the plane of the bottom cup base is, and the planar shape of the primary air cavity. It is arc-shaped, and the second center is the center of the circle where the plane of the primary air cavity is located.

The burner according to the embodiment of the present application includes a flame burner and a bottom cup of the burner according to any one of the foregoing embodiments, and the flame burner is disposed on the bottom cup cover.

In the above burner, during the heating or cooling of the burner, the connection between the first mounting wall and the second mounting wall can be thermally expanded and contracted to further ensure better sealing performance, so that the bottom cup lid body is installed at the bottom The cup holder has better sealing performance, and the bottom cup is not easy to leak air. This will not cause the insufficient amount of air and gas mixture in the burner's flame burner, which will affect the normal operation of the burner.

In some embodiments, at least one of the bottom cup lid body and the bottom cup base body has a first center, the flamethrower has a third center, and the third center is eccentric from the first center. Settings.

In some embodiments, the flamethrower is formed with a gas mixing cavity and a fire hole communicating with the gas mixing cavity, the gas outlet is connected with the ejection channel and the gas mixing cavity, and the root of the fire hole is arc.

A gas cooker according to an embodiment of the present application includes the burner according to any one of the foregoing embodiments.

In the above gas cooker, during the heating or cooling process of the burner, the connection between the first mounting wall and the second mounting wall can be thermally expanded and contracted to further ensure better sealing performance, so that the bottom cup lid body is mounted on the bottom The cup holder has better sealing performance, and the bottom cup is not easy to leak air. This will not cause the insufficient amount of air and gas mixture in the burner's flame burner, which will affect the normal operation of the burner.

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

BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

3 is a bottom view of the burner according to the embodiment of the present application;

4 is a front view of a burner according to an embodiment of the present application;

5 is a side view of a burner according to an embodiment of the present application;

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

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

8 is a schematic cross-sectional view of a burner according to an embodiment of the present application;

9 is another schematic cross-sectional view of a burner according to an embodiment of the present application;

10 is another schematic cross-sectional view of a burner according to an embodiment of the present application;

11 is a plan view of a burner with a fire cover removed according to an embodiment of the present application;

12 is a schematic perspective view of a bottom cup and a nozzle holder of a burner according to an embodiment of the present application;

13 is an exploded schematic view of a bottom cup and a nozzle holder of a burner according to an embodiment of the present application;

14 is another exploded view of the bottom cup and the nozzle holder of the burner according to the embodiment of the present application;

15 is a schematic perspective view of a bottom cup seat body and a nozzle seat of a burner according to an embodiment of the present application;

16 is another perspective view of the bottom cup base and the nozzle base of the burner according to the embodiment of the present application;

17 is a schematic perspective view of a bottom cup cover of a burner according to an embodiment of the present application;

18 is another schematic perspective view of the bottom cup cover of the burner according to the embodiment of the present application;

FIG. 19 is another perspective view of the bottom cup cover of the burner according to the embodiment of the present application; FIG.

20 is a schematic perspective view of a bottom cup base of a burner according to an embodiment of the present application;

21 is another perspective view of the bottom cup base of the burner according to the embodiment of the present application;

22 is another perspective view of the bottom cup base of the burner according to the embodiment of the present application;

23 is a schematic perspective view of a nozzle holder of a burner according to an embodiment of the present application;

24 is another schematic perspective view of a nozzle holder of a burner according to an embodiment of the present application;

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

FIG. 26 is an enlarged schematic view of the flamethrower I portion of the burner of FIG. 25; FIG.

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

FIG. 28 is another schematic perspective view of the burner according to the embodiment of the present application; FIG.

FIG. 29 is another exploded schematic view of the burner according to the embodiment of the present application; FIG.

30 is a schematic perspective view of a bottom cup and a nozzle holder of a burner according to an embodiment of the present application;

31 is an exploded schematic view of a bottom cup and a nozzle holder of a burner according to an embodiment of the present application;

FIG. 32 is another perspective view of the bottom cup cover of the burner according to the embodiment of the present application; FIG.

33 is another perspective view of the bottom cup cover of the burner according to the embodiment of the present application;

34 is another perspective view of the bottom cup cover of the burner according to the embodiment of the present application;

35 is a schematic perspective view of a bottom cup base of a burner according to an embodiment of the present application;

36 is another perspective view of the bottom cup base of the burner according to the embodiment of the present application;

FIG. 37 is another schematic perspective view of the flame burner of the burner according to the embodiment of the present application.

Explanation of main component symbols:

Burner 100;

Bottom cup 10, ejection channel 101, connection channel 102, first connection channel 1021, first sub-connection channel 10211, second sub-connection channel 10212, second connection channel 1022, third sub-connection channel 10221, fourth sub-connection Channel 10222, first mounting hole 103, bottom cup lid body 11, first joint surface 110, first channel joint surface 1101, first connection joint surface 1102, second positioning hole 1103, top wall 111, top surface 1110, first A mounting wall 112, a first channel portion 113, a first groove 1131, an air outlet 114, an outer ring air outlet 1141, an inner ring air outlet 1142, a first outer ring air outlet 1143, a second outer ring air outlet 1144, a first An inner ring air outlet 1145, a second inner ring air outlet 1146, a first secondary air passage 115, a first positioning structure 1151, a lid connection groove 116, a bottom cup base 12, a fixing hole 1201, a bottom wall 121, a first Two joint surfaces 1210, second connection joint surface 12101, second channel joint surface 12102, third connection joint surface 12103, bottom wall connection groove 1211, second mounting wall 122, second channel portion 123, second groove 1231 First mounting groove 124, primary air cavity 13, primary air cavity 131, bottom cup through hole 132 , Ring member 133, opening 1331, first positioning hole 1332, cavity body 134, positioning post 1341, second positioning structure 135, first supporting plate 1351, second supporting plate 1352, second mounting hole 1353;

Nozzle holder 20, air inlet 21, first positioning surface 210, first passage 211, second passage 212, first intake pipe 213, second intake pipe 214, baffle 22, third positioning structure 23, mounting plate 24 A second positioning surface 241 and a second mounting groove 242;

Flamethrower 30, side wall 301, fire trough 302, pressure relief chamber 303, pressure relief port 3031, gas mixing chamber 31, outer gas mixing chamber 311, inner gas mixing chamber 312, fire hole 32, outer ring fire hole 321, inner Ring fire hole 322, outer ring cavity 33, inner ring cavity 34, second secondary air passage 341, fourth positioning structure 342, positioning groove 343, positioning block 344, first connection portion 35, flamer connection channel 351 , The second connecting portion 36, the guide surface 37, the blocking piece 38, the joint 381, and the mixed gas channel 39;

Fire cover 40, outer ring fire cover 41, inner ring fire cover 42, inner ring fire cover through hole 421;

Burner 200;

Bottom cup 210, first injection channel 201, connection channel 202, bottom cup cover body 211, first joint surface 2110, top wall 2111, air outlet 2114, first mounting wall 2112, first channel portion 2113, first recess Groove 21131, cover connection groove 2116, bottom cup seat body 212, bottom wall 2121, bottom wall connection groove 21211, second joint surface 2210, second mounting wall 2122, second passage portion 2123, primary air cavity 213, primary Air cavity 2131, first cavity portion 2133, ring 2135, first connecting wall 2136, first mating groove 21331, second cavity portion 2134, second connecting wall 2137, mounting port 21371, second mating groove 21341,

The nozzle holder 220, the first intake passage 221, the second intake passage 222, the third intake pipe 223, the fourth intake pipe 224, the inner ring intake pipe 270, and the third nozzle 271;

Flame thrower 230, outer ring fire hole 2301, inner ring fire hole 2302, outer ring cavity 233, outer gas mixing cavity 2331, inner ring cavity 234, inner gas mixing cavity 2341;

The fire cover 240, the outer ring fire cover 241, and the inner ring fire cover 242.

detailed description

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

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear "," left "," right "," vertical "," horizontal "," top "," bottom "," inside "," outside "," clockwise "," counterclockwise ", etc. or The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, structure and operation in a specific orientation, Therefore, it cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically defined otherwise.

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

Please refer to FIGS. 1 to 26. The burner 100 according to the embodiment of the present application includes a bottom cup 10, a nozzle holder 20, a flame burner 30, and a fire cover 40. The burner 100 can be applied to a gas cooker according to the embodiment of the present application.

Referring to FIGS. 1 to 12, the bottom cup 10 includes a bottom cup lid body 11 and a bottom cup base body 12. The bottom cup 10 is provided with a primary air cavity 13. The bottom cup lid body 11 is mounted on the bottom cup base body 12. For example, the bottom cup lid body 11 and the bottom cup base body 12 are riveted. In order to allow air to sufficiently enter the primary air cavity 13, the primary air cavity 13 is protruded from the side of at least one of the bottom cup lid body 11 and the bottom cup base body 12.

With reference to FIGS. 7 to 13, the bottom cup 10 is provided with an ejection channel 101 having a Venturi effect. A connection channel 102 is defined in the bottom cup 10. The connection channel 102 has a guiding effect on the gas. The connection channel 102 includes a first connection channel 1021 and a second connection channel 1022. The first connection channel 1021 communicates with the ejection channel 101 and the second connection channel 1022. The first connection channel 1021 has an arc shape, so that the resistance of the airflow flowing in the first connection channel 1021 can be reduced. In order to ensure the flow velocity of the airflow flowing from the connection channel 102, the first connection channel 1021 may be gradually changed along the airflow direction. In addition, the bottom cup 10 is provided with a first mounting hole 103. The first mounting hole 103 can be used for mounting a thermocouple (not shown) and an ignition pin (not shown). It can be understood that, in order to reduce the resistance of the air flow, the first connection channel 1021 and the air outlet end of the ejection channel 101 may be arc-shaped connected. A single ejection channel 101 is provided in the bottom cup of the embodiment of the present application. Referring to FIG. 8, the ejection channels 101 are arranged substantially horizontally.

6 and FIG. 8, at least one of the bottom cup lid body 11 and the bottom cup base body 12 has a first center x (the dotted line m1 in FIG. 8 is a central axis where the first center x is located). The primary air cavity 13 has a second center y (the dotted line m2 in FIG. 8 is the central axis where the second center y is located). The first center x and the second center y are arranged off-center. Specifically, the planar shape of at least one of the bottom cup lid body 11 and the bottom cup base body 12 is regular, and the planar shape of the primary air cavity 13 is regular. For example, the planar shape of the bottom cup holder 12 is a circular arc, the first center x is the center of the circle where the plane of the bottom cup holder 12 is located, the planar shape of the primary air cavity 13 is a circular arc, and the second center y Is the center of the circle where the plane of the primary air cavity 13 is located. For another example, the planar shape of the bottom cup holder 12 is square, and the first center x is the intersection of the diagonal of the square where the plane of the bottom cup holder 12 is located. The planar shape of the primary air cavity 13 is square, and the second center is y is the intersection of the diagonals of the square where the plane of the primary air cavity 13 is located. This can ensure that the air can fully enter the primary air cavity 13, so as to facilitate the mixing of the gas and the air in the primary air cavity 13. Of course, it can be understood that the bottom cup lid body 11, the bottom cup base body 12, and the primary air cavity 13 may also have other regular shapes (such as an oval shape, etc.).

With reference to FIGS. 17-20, the bottom cup lid body 11 includes a top wall 111, a first mounting wall 112 and a first channel portion 113. The bottom cup lid body 11 is formed with a first joint surface 110. The bottom cup lid body 11 is provided with a lid body connecting groove 116. The cover connecting groove 116 is located between the first passage portion 113 and the first mounting wall 112.

The top wall 111 is provided with an air outlet 114. The ejection channel 101 communicates with the air outlet 114. In this way, the mixture of gas and air ejected from the ejection channel 101 can be supplied to the flamethrower 30 from the air outlet 114 for combustion.

With reference to FIG. 16, in order to enable the burner 100 to form a multi-ring flame, the air outlet 114 includes an outer ring air outlet 1141 and an inner ring air outlet 1142. The first connection channel 1021 connects the air outlet end of the ejection channel 101 and the outer ring air outlet 1141. In order to increase the air outlet area of the outer ring air outlet 1141 and ensure the uniformity of the air outlet, the outer ring air outlet 1141 is set in an arc shape, such as a circular arc shape. The center of the circle where the outer ring air outlet 1141 is located and the first air cavity 13 The two centers y overlap. In addition, the outer ring air outlet 1141 and the inner ring air outlet 1142 are respectively protruded from the top surface 1110 of the top wall 111.

Please refer to FIG. 17. In order to make the air from the outer ring air outlet 1141 more uniform, the outer ring air outlet 1141 includes a first outer ring air outlet 1143 and a second outer ring air outlet 1144 which are spaced apart. The first connection channel 1021 includes a first sub-connection channel 10211 and a second sub-connection channel 10212. The first sub-connection channel 10211 and the second sub-connection channel 10212 are connected to both sides of the air outlet end of the ejection channel 101, respectively. The first sub-connection channel 10211 communicates with the first outer ring air outlet 1143 and the ejection channel 101. The second sub-connection channel 10212 communicates with the second outer ring air outlet 1144 and the ejection channel 101. Among them, the first sub-connection channel 10211 and the second sub-connection channel 10212 can be arc-shaped, and the first sub-connection channel 10211 and the second sub-connection channel 10212 can be set to the center of the ejection channel 101 of the bottom cup 10 The axis is symmetrical. In order to reduce the resistance of the air flow, the first sub-connection channel 10211 can be arc-connected to the air outlet end of the ejection channel 101, and the second sub-connection channel 10212 can be arc-connected to the air outlet end of the ejection channel 101.

Please refer to FIG. 17. In order to make the air from the inner ring air outlet 1142 more uniform, the inner ring air outlet 1142 includes a first inner ring air outlet 1145 and a second inner ring air outlet 1146 which are spaced apart. The second connection channel 1022 includes a third sub-connection channel 10221 and a fourth sub-connection channel 10222. The third sub-connection channel 10221 communicates with the first sub-connection channel 10211 and the first inner ring air outlet 1145. The fourth sub-connection channel 10222 communicates with the second sub-connection channel 10212 and the second inner ring air outlet 1146. A first secondary air passage 115 is formed on a surface portion of the top wall 111 between the first inner ring air outlet 1145 and the second inner ring air outlet 1146 (as shown in FIG. 8). At this time, the channel formed by the third sub-connection channel 10221 communicating with the first sub-connection channel 10211 and the channel formed by the fourth sub-connection channel 10222 communicating with the second sub-connection channel 10212 are not connected, and are respectively located in the first secondary air channel. 115 on both sides. This increases the area of the secondary air intake, and the outside air can fully enter the first secondary air passage 115, thereby ensuring the secondary air intake capacity.

A first positioning structure 1151 located in the first secondary air passage 115 is formed on the surface portion (the upper surface portion in the present embodiment) of the top wall 111. The first mounting wall 112 is protruded from the top wall 111. The first channel portion 113 is protruded from the top wall 111. The first mounting wall 112 surrounds the first passage portion 113.

Referring to FIG. 18, the first channel portion 113 is provided with a first groove 1131. The first channel portion 113 is formed with first channel engaging surfaces 1101 on both sides of the first groove 1131. The first channel portion 113 is formed with a first connection joint surface 1102. The first channel joint surface 1101, the first connection joint surface 1102, and the end faces of the first mounting wall 112 are coplanar. The first joint surface 110 includes a first channel joint surface 1101 and a first connection joint surface 1102.

14-16 and 20-22, the bottom cup base 12 includes a bottom wall 121, a second mounting wall 122, and a second channel portion 123. The second mounting wall 122 is protruded from the bottom wall 121. The top wall 111 and the bottom wall 121 are opposed. The bottom wall 121 faces the first joint surface 110. The bottom cup base 12 is formed with a first mounting groove 124. Specifically, the bottom wall 121 and the second mounting wall 122 together form a first mounting groove 124. The first mounting wall 112 is at least partially embedded in the first mounting groove 124 and at least partially overlaps with the second mounting wall 122. That is, the bottom cup lid body 11 is mounted on the bottom cup seat body 12 and is partially located in the first mounting groove 124. .

Specifically, the first mounting wall 112 and the second mounting wall 122 are overlapped and joined along the inside of the burner 100 toward the outside (refer to the orientation of FIG. 5). In this way, during the heating or cooling process of the burner 100, the connection between the first mounting wall 112 and the second mounting wall 122 can be thermally expanded and contracted to further ensure better sealing performance, so that the bottom cup lid body 11 is mounted on The sealing performance of the bottom cup base 12 is better. The bottom cup 10 is unlikely to leak air. This will not cause an insufficient amount of the air and gas mixture of the flame burner 30, and then affect the normal operation of the burner 100. In one example, the bottom cup 10 may be made of cast aluminum.

The bottom wall 121 defines a bottom wall connecting groove 1211. The cover connection groove 116 and the bottom wall connection groove 1211 together form a connection channel 102. The connection channel 102 communicates with the ejection channel 101 and the air outlet 114. The connection passage 102 and the ejection passage 101 may collectively constitute a mixed gas passage 39 for gas and air of the bottom cup 10. A second joint surface 1210 is formed on the top surface of the bottom wall 121. The second mounting wall 122 surrounds the second joint surface 1210. The first joint surface 110 and the second joint surface 1210 are joined. At least one of the first joint surface 110 and the second joint surface 1210 is processed by a finishing process. In this way, the sealing effect is better. The second joint surface 1210 includes a second connection joint surface 12101, a second channel joint surface 12102, and a third connection joint surface 12103. An end surface of the first mounting wall 112 is joined to the second connection joint surface 12101.

In order to improve the sealing effect, the end surface of the first mounting wall 112 is in contact with the top surface of the bottom wall 121. It should be noted that the contact between the end surface of the first mounting wall 112 and the top surface of the bottom wall 121 may be processed by a precision turning process. That is, the end surface of the first mounting wall 112 may be processed by a precision turning process, or a part of the top surface of the bottom wall 121 connected to the first mounting wall 112 may be processed by a precision turning process, or Both the end surface and the top surface of the bottom wall 121 that is in contact with the first mounting wall 112 are processed by a precision turning process.

The second channel portion 123 is located at the bottom of the first mounting groove 124. The first channel portion 113 and the second channel portion 123 are connected. The second mounting wall 122 surrounds the second passage portion 123. The second channel portion 123 defines a second groove 1231. The first groove 1131 and the second groove 1231 together form an ejection channel 101. This facilitates processing and shaping of the ejection channel 101. The second channel portion 123 forms second channel engaging surfaces 12102 on both sides of the second groove 1231. The first channel joint surface 1101 and the second channel joint surface 12102 are joined. At least one of the first channel joint surface 1101 and the second channel joint surface 12102 is processed by a finishing process. The second channel portion 123 forms a third connection joint surface 12103. The first connection joint surface 1102 and the third connection joint surface 12103 are joined. The second connection joint surface 12101 and the third connection joint surface 12103 surround the bottom wall connection groove 1211. The second connection joint surface 12101, the second channel joint surface 12102, and the third connection joint surface 12103 are coplanar.

12 to 22, the primary air cavity 13 is provided with a primary air cavity 131 that communicates with the ejection channel 101. The side wall of the primary air cavity 131 is provided with a bottom cup through hole 132 communicating with the primary air cavity 131. The air enters the primary air cavity 131 through the bottom cup through hole 132 and is mixed with the gas in the primary air cavity 131.

The primary air cavity 13 includes a ring member 133 and a cavity body 134. The ring member 133 protrudes from the side of the bottom cup lid body 11. The ring member 133 has an opening 1331. The cavity body 134 protrudes from the side of the bottom cup holder 12. The ring member 133 is sleeved on the outer wall of the cavity body 134 and forms a primary air cavity 131 together. The opening 1331 communicates with the primary air cavity 131. The side of the cavity body 134 defines a bottom cup through hole 132. The planar shape of the ring member 133 is an arc shape, and the planar shape of the cavity body 134 is an arc shape.

In order to facilitate installation and positioning, the ring member 133 is provided with a first positioning hole 1332. A positioning post 1341 is protruded from the top surface of the cavity body 134. The positioning post 1341 is fixed in the first positioning hole 1332 to play a role of positioning and fixing during the combination process of the bottom cup lid body 11 and the bottom cup base body 12.

The side wall of the primary air cavity 13 is outwardly provided with a second positioning structure 135. The second positioning structure 135 includes a first support plate 1351 and a second support plate 1352. The first support plate 1351 may be a circular arc plate, and the second support plate 1352 may be a flat plate. The second supporting plate 1352 is provided with a second mounting hole 1353.

The nozzle holder 20 is mounted on the side of the bottom cup 10. In order to facilitate installation and air supply, the nozzle holder 20 is detachably mounted on the side wall of the primary air cavity 13. The nozzle holder 20 is located at the bottom cup through hole 132 and is configured to cover or open the bottom cup through hole 132. Since the nozzle holder 20 is detachable, different nozzle holders 20 can be matched for the burner 100 according to the requirements of the upper and lower inlet air. When the nozzle holder 20 covers the bottom cup through hole 132, the burner 100 can It is designed as an upper inlet burner. When the nozzle holder 20 opens the bottom cup through hole 132, the burner 100 may be designed as a lower inlet burner or an up and down inlet burner. Therefore, the air inlet method of the burner 100 can be flexibly changed at a low cost and adapted to different use environments. It should be noted that the nozzle holder 20 may be manufactured by a core-pulling process.

23-24, the nozzle holder 20 includes an air inlet portion 21, a baffle plate 22, a third positioning structure 23, and a mounting plate 24. The baffle plate 22 is protruded on the air intake portion 21. The height of the baffle 22 is adjustable so that the baffle 22 covers or opens the bottom cup through hole 132. When the baffle 22 covers the bottom cup through hole 132, the baffle 22 fills the bottom cup through hole 132. This facilitates blocking or opening the bottom cup through hole 132. The second positioning structure 135 is connected to the third positioning structure 23 and jointly defines the position of the nozzle holder 20 on the bottom cup 10 from different at least two directions to fix the nozzle holder 20 and is convenient for installation and foolproof. The mounting plate 24 is provided on the air intake portion 21. Among them, preferably, the at least two directions mentioned above include two directions perpendicular to each other. It can be understood that, in other embodiments, the baffle can also directly cover the outer surface of the side wall of the primary air cavity 131, so that the baffle can also cover the bottom cup through hole 132. In addition, in other embodiments, the nozzle holder can omit the baffle, and can also realize a burner that enters the air. In this case, it can also be understood that the height of the baffle is zero.

Please refer to FIG. 4 and FIG. 8. In order to make full use of the installation space and make the overall structure of the burner 100 more compact, the air inlet portion 21 is provided with a first passage 211 that communicates sequentially along the air inlet direction (shown by the dotted arrow in FIG. 5). And second channel 212. The first passage 211 has a first intake center z in the intake direction of the intake section 21. The second passage 212 has a second intake center g along the intake direction of the intake section 21. The first intake center z and the second intake center g are eccentrically disposed. The first channel 211 and the second channel 212 may be in a regular column shape, such as a cylindrical shape or an oval shape. In addition, the first channel 211 and the second channel 212 may be formed by a mold, so as to ensure the concentricity of each channel. It should be noted that, because the airflow in the air intake portion 21 is basically static pressure, the resistance when the airflow passes through the first passage 211 and the second passage 212 is small. The primary air cavity 131 communicates with the second channel 212. In addition, a first nozzle (not shown) may be installed at the air outlet of the second channel 212, and the first nozzle and the ejection channel 101 may be opposed to each other.

Specifically, in this embodiment, the air intake portion 21 includes a first air intake pipe 213 and a second air intake pipe 214. The first intake pipe 213 opens a first passage 211. The second intake pipe 214 opens a second passage 212. In this way, the first intake pipe 213 and the second intake pipe 214 are eccentrically disposed. In this way, the first air intake pipe 213 can be disposed lower than the second air intake pipe 214 to free the upper space of the nozzle holder 20, so that there can be enough space to place the panel. In addition, the second intake pipe 214 may be supported by the first support plate 1351 for positioning.

The first passage 211 is closer to the intake end 201 of the air intake portion 21 than the second passage 212. The cross-sectional dimension of the first channel 211 is larger than the cross-sectional dimension of the second channel 212. For example, if the first channel 211 and the second channel 212 are circular, the radius of the first channel 211 is larger than the radius of the second channel 212; if the first channel 211 and the second channel 212 are square, the The cross-sectional area is larger than the cross-sectional area of the second channel 212.

The air intake portion 21 is formed with a first positioning surface 210 (as shown in FIG. 24). A second positioning surface 241 is formed on the bottom surface of the mounting plate 24. The first positioning surface 210 and the second positioning surface 241 constitute a third positioning structure 23. The side surface of the first support plate 1351 is engaged with the first positioning surface 210. The top surface of the second support plate 1352 is engaged with the second positioning surface 241. The first positioning surface 210 may be a positioning surface of a step structure formed by eccentrically disposing the first intake pipe 213 and the second intake pipe 214.

Please refer to FIGS. 22-24. In order to further improve the installation stability of the nozzle holder 20, the number of the mounting plates 24 is two. Two mounting plates 24 are respectively disposed on opposite sides of the air inlet portion 21. The number of the second supporting plates 1352 is two. The first support plate 1351 is connected to two second support plates 1352. In this way, the top surfaces of the two second supporting plates 1352 can be respectively engaged with the second positioning surfaces 241 of the two mounting plates 24.

The mounting plate 24 is provided with a second mounting groove 242. The second mounting groove 242 communicates with the second mounting hole 1353 of the second support plate 1352. The second mounting groove 242 and the second mounting hole 1353 are used for a fixing member (not shown) for fixing the nozzle holder 20 and the bottom cup 10. The second mounting groove 242 may be a U-shaped groove.

Please refer to FIGS. 1 and 25-27. The flamethrower 30 is installed on the bottom cup cover 11. In the present embodiment, the flamethrower 30 is mounted on the top wall 111. The staggered portion of the top wall 111 and the flamethrower 30 can be used to set a liquid receiving tray (not shown), so that the installation space of the top wall 111 can be fully utilized, and the overall structure of the burner 100 is more compact. When fixing the liquid receiving pan, the fastener can be passed through the liquid receiving pan and the second positioning hole 1103 of the bottom cup lid body 11 and fixed in the fixing hole 1201 of the bottom cup base body 12 to fix the liquid receiving pan and the bottom at the same time. The cup lid body 11 and the bottom cup base body 12, at this time, the positioning points of the bottom cup lid body 11 and the liquid receiving pan are consistent with the positioning points of the bottom cup lid body 11 and the bottom cup base body 12, so that the overall seal can be guaranteed Reliability, while reducing the hole position process and assembly process, to achieve overall efficiency improvement. In one example, the flamethrower may be made of cast aluminum.

The flamethrower 30 is formed with a gas mixing chamber 31 and a fire hole 32 communicating with the gas mixing chamber 31. The air outlet 114 communicates with the injection channel 101 and the gas mixing chamber 31. The flamethrower 30 has a third center k (the dotted line m3 in FIG. 5 is the center axis where the third center k is located). The first center x and the third center k are eccentrically disposed. The third center k of the flamethrower 30 and the first center x of the bottom cup 10 are eccentrically arranged, so that the bottom cup 10 can have more space to set the ejection channel 101 longer, so that the ejection channel 101 can have a larger The ejection capability can increase the thermal load of the burner 100, and can ensure the amount of the gas and air mixture entering the gas mixing chamber 31, thereby ensuring the combustion stability of the burner 100. In the present embodiment, the third center k is concentric with the second center y. The dotted line m3 coincides with the dotted line m2. Of course, it can be understood that the third center k and the second center y may be offset from each other.

It should be noted that the planar shape of the flamethrower 30 may be regular, for example, the planar shape of the flamethrower 30 shown in the figure is circular. In other embodiments, the planar shape of the flamethrower 30 may be an elliptical arc or a square. When the plane shape of the flamethrower 30 is arc-shaped and the plane shape of the primary air cavity 13 is arc-shaped, the center of the circle where the plane of the flamethrower 30 is located overlaps the center of the circle where the plane of the primary air cavity 13 is . This is more conducive to the mixing of gas and air. When the outer ring air outlet 1141 is arc-shaped, the center of the plane where the outer ring air outlet 1141 is located overlaps with the third center k of the flamethrower 30, so that the mixed gas flowing from the outer ring air outlet 1141 into the flamer 30 flows. Less resistance.

A pressure relief chamber 303 is formed in the bottom cup 10. The gas and air mixed gas channel 39 and the pressure relief chamber 303 that are formed by the connection channel 102 and the ejection channel 101 are both located on both sides of the joint 381 of the first joint surface 110 and the second joint surface 1210. The bottom cup lid body 11 is provided with a pressure relief port 3031 communicating with the pressure relief cavity 303. The air outlet 114 is spaced from the pressure relief port 3031. Since the mixed gas channel 39 and the pressure relief chamber 303 are located on both sides of the joint 381 of the first joint surface 110 and the second joint surface 1210, the mixed gas in the mixed gas channel 39 that appears in the bottom cup 10 leaks to the vent through the joint 381 After the cavity 303 is pressed, the mixed gas can leak from the pressure relief port 3031 to the bottom cup 10 and can be burned and consumed by the flamethrower 30 above the bottom cup 10, thereby avoiding or reducing the accident caused by the gas leakage from the bottom cup 10. At the same time, the arrangement of the pressure relief chamber 303 can also reduce the overall weight of the bottom cup 10. In order to facilitate installation and cleaning, the first channel portion 113 is provided with a pressure relief chamber 303, that is, the entire upper surface of the bottom cup cover body 211 is relatively flat. The pressure relief chamber 303 is spaced from the first groove 1131.

In order to increase the area of the fire hole 32 and improve the ejection ability of the fire hole 32, the root of the fire hole 32 can be made into an arc shape, such as a circular arc shape, which is also convenient for processing. In order to improve the stability of the flame transfer of the flame thrower 30, the flame thrower 30 includes a side wall 301 surrounding the gas mixing chamber 31. A plurality of spaced-apart fire holes 32 are opened on the side surface of the side wall 301, and a fire groove 302 is formed on the top surface of a part of the side wall 301 between two adjacent fire holes 32. The fire trough 302 communicates with the gas mixing chamber 31 and two adjacent fire holes 32. In addition, when the fire trough 302 is provided in a T shape, the flame transfer stability of the flame thrower 30 is better. The specific structure of the flamethrower 30 will be further described below.

The flamethrower 30 includes an outer ring cavity 33, an inner ring cavity 34, two first connection portions 35, a second connection portion 36, and a flow guiding surface 37. The outer ring cavity 33 surrounds the inner ring cavity 34 at intervals. The gas mixing chamber 31 includes an outer gas mixing chamber 311 and an inner gas mixing chamber 312. The outer ring cavity 33 is provided with an outer gas mixing cavity 311. The inner ring cavity 34 is provided with an inner gas mixing cavity 312. The fire hole 32 includes an outer ring fire hole 321 and an inner ring fire hole 322. The outer ring fire hole 321 surrounds the inner ring fire hole 322. The outer ring fire hole 321 communicates with the outer gas mixing cavity 311. The inner ring fire hole 322 communicates with the inner gas mixing cavity 312.

Both the outer gas mixing chamber 311 and the inner gas mixing chamber 312 are supplied by the ejection channel 101. With reference to FIG. 11, the burner 100 is provided with a second secondary air passage 341 penetrating through the middle of the inner ring cavity 34. The second secondary air passage 341 communicates with the first secondary air passage 115. This ensures the secondary air intake capacity. The outer gas mixing chamber 311 communicates with the outer ring air outlet 1141 and the outer ring fire hole 321. The inner gas mixing chamber 312 communicates with the inner ring gas outlet 1142 and the inner ring fire hole 322.

During air intake, please refer to Figs. 8-11. The gas can enter the first passage 211 and the second passage 212 of the air inlet 21 in sequence (as shown by the dashed arrows in Fig. 5). Then, the gas may be injected into the primary air cavity 131 by the first nozzle. At the same time, outside air can enter the primary air cavity 131 through the bottom cup through hole 132 and be mixed with the gas in the primary air cavity 131. The gas-air-mixed gas mixture enters the ejection channel 101, and is ejected by the ejection channel 101 to the first connection channel 1021 and the second connection channel 1022 (as shown by the dashed arrows in FIG. 9). Then, the mixed gas coming out of the first connection channel 1021 enters the outer gas mixing cavity 311 through the outer ring air outlet 1141 for combustion, so as to form an outer ring flame in the outer ring fire hole 321. The mixture coming out of the second connection channel 1022 enters the inner gas mixing cavity 312 through the inner ring air outlet 1142 for combustion, so as to form an inner ring flame in the inner ring fire hole 322. The outside air can enter through the first secondary air passage 115 and the second secondary air passage 341 to supplement the air.

In order to facilitate the installation of the flamethrower 30, a fourth positioning structure 342 is formed in the middle of the bottom of the inner ring cavity 34. A positioning groove 343 is defined in one of the first positioning structure 1151 and the fourth positioning structure 342. The other of the first positioning structure 1151 and the fourth positioning structure 342 is provided with a positioning block 344. The positioning block 344 is inserted into the positioning groove 343. In order to improve the stability of installation, the shape of the positioning block 344 is consistent with the shape of the positioning groove 343, and the positioning block 344 has a plate shape with different thickness. The first positioning structure 1151 is provided with a positioning groove 343, and the fourth positioning structure 342 is provided with a positioning block 343.

The first connection portion 35 connects the outer ring cavity 33 and the inner ring cavity 34. Each first connecting portion 35 is provided with a flamethrower connecting channel 351. The flamethrower connection channel 351 communicates with the outer ring air outlet 1141, the inner ring air outlet 1142, and the gas mixing chamber 31. The positioning block 344 is connected between the two first connecting portions 35.

The second connection portion 36 connects the outer ring cavity 33 and the inner ring cavity 34. The guide surface 37 is located on the bottom surface of the second connection portion 36 and the bottom surface of the inner ring cavity 34. The deflector 37 inclines from the outside of the flamethrower 30 inward to the second secondary air passage 341.

In addition, the flamethrower 30 includes a blocking piece 38. The blocking piece 38 covers the pressure relief port 3031 at least partially. This can prevent the spilled debris from blocking the pressure relief port 3031. In the illustrated embodiment, the blocking piece 38 is connected to the inner side of the outer ring cavity 33. Further, the blocking piece 38 connects the first connecting portion 35 and the inner side of the outer ring cavity 33, so that the blocking piece 38 can be prevented from being deformed due to high temperature when the burner 100 is operating. The fire cover 40 includes an outer ring fire cover 41 and an inner ring fire cover 42. The outer ring fire cover 41 covers an outer ring cavity 33. The inner ring fire cover 42 covers an inner ring cavity 34. The outer ring fire cover 41 and the inner ring fire cover 42 are spaced apart. An inner ring fire cover through hole 421 is defined in the middle of the inner ring fire cover 42. The inner ring fire cover through hole 421 communicates with the second secondary air passage 341.

Referring to FIGS. 27-37, a burner 200 according to another embodiment of the present application includes a bottom cup 210, a nozzle holder 220, a flame burner 230, and a fire cover 240. The nozzle holder 220 is mounted on a side of the bottom cup 210. The flamethrower 230 is disposed on the bottom cup 210. The burner 200 according to the embodiment of the present application can be applied to a gas cooker according to the embodiment of the present application.

The bottom cup 210 includes a bottom cup lid body 211, a bottom cup base body 212 and a primary air cavity 213. The bottom cup lid body 211 is mounted on the bottom cup base body 212. For the connection method of the bottom cup lid body 211 and the bottom cup base body 212, reference may be made to the burner 100 in the foregoing embodiment of the present application. The primary air cavity 213 is protruded from a side of at least one of the bottom cup lid body 211 and the bottom cup base body 212. For the manner of setting the primary air cavity 213, reference may also be made to the burner 100 of the above-mentioned application.

A first ejection channel 201 having a Venturi effect is defined in the bottom cup 210. A connection channel 202 is defined in the bottom cup 210. The connection channel 202 has a guiding effect on the gas. For the setting manner of the connection channel 202, refer to the burner 100 of the above-mentioned application.

The bottom cup lid body 211 includes a top wall 2111, a first mounting wall 2112, and a first channel portion 2113. The bottom cup lid body 211 is formed with a first joint surface 2110. The bottom cup lid body 211 is provided with a lid body connecting groove 2116. The cover connecting groove 2116 is located between the first channel portion 2113 and the first mounting wall 2112.

The top wall 2111 is provided with an air outlet 2114. The first mounting wall 2112 is protruded from the top wall 2111. The flamethrower 230 is mounted on the top wall 2111. The connection channel 202 connects the air outlet end and the air outlet 2114 of the first ejection channel 201. The first channel portion 2113 is provided with a first groove 21131.

The bottom cup base 212 includes a bottom wall 2121, a second mounting wall 2122, and a second channel portion 2123. An end surface of the first mounting wall 2112 is in contact with a top surface of the bottom wall 2121. The second mounting wall 2122 is protruded from the bottom wall 2121. The top wall 2111 and the bottom wall 2121 are opposed. The bottom wall 2121 is opposed to the first joint surface 2110. The bottom cup base 212 is formed with a first mounting groove 2124. Specifically, the bottom wall 2121 and the second mounting wall 2122 form a first mounting groove 2124 together. The first mounting wall 2112 is at least partially embedded in the first mounting groove 2124 and at least partially overlaps with the second mounting wall 2122.

The bottom wall 2121 defines a bottom wall connection groove 21211. The cover connecting groove 2116 and the bottom wall connecting groove 21211 together form a connecting channel 2102. A second joint surface 2210 is formed on the top surface of the bottom wall 2121. The second mounting wall 2122 surrounds the second joint surface 2210. The first joint surface 2110 and the second joint surface 2210 are joined. At least one of the first joint surface 2110 and the second joint surface 2210 is processed by a finishing process. In this way, the sealing effect is better. For the connection manner of the first joint surface 2110 and the second joint surface 2210, refer to the burner 100 in the foregoing embodiment of the present application.

The second channel portion 2123 is located at the bottom of the first mounting groove 2124. The first channel portion 2113 and the second channel portion 2123 are connected. The second mounting wall 2122 surrounds the second passage portion 2123. The second channel portion 2123 defines a second groove 2231. The first groove 2131 and the second groove 2231 together form a first ejection channel 201. For a specific manner of forming the first injection channel 201, reference may be made to a method of forming the injection channel 101 in the burner 100 according to the foregoing embodiment of the present application.

The primary air cavity 213 is provided with a primary air cavity 2131 communicating with the first ejection channel 201. The primary air cavity 213 includes a first cavity portion 2133 and a second cavity portion 2134. The first cavity portion 2133 protrudes from the side of the bottom cup lid body 211. The first cavity portion 2133 is formed with a first fitting groove 21331. The second cavity portion 2134 protrudes from a side wall of the bottom cup base 212. The second cavity portion 2134 is formed with a second fitting groove 21341. The first mating groove 21331 and the second mating groove 21341 together form a primary air cavity 2131.

The first cavity portion 2133 includes a ring 2135 and a first connection wall 2136. The ring member 2135 protrudes from the side of the bottom cup cover body 211. The first connecting wall 2136 connects the sides of the ring 2135. The ring member 2135 is located between the first connection wall and the side of the bottom cup lid body 211. The first connection wall 2136 surrounds the first fitting groove 21331. The first connection wall 2136 is opposite to the air inlet of the first ejection channel 201. The ring member 2135 has an opening communicating with the first fitting groove 21331.

The second cavity portion 2134 includes a second connection wall 2137. The second connecting wall 2137 is provided with a mounting port 21371. The second connection wall 2137 surrounds the second fitting groove 21341. The mounting opening 21371 communicates with the second fitting groove 21341. The first connection wall 2136 is installed at the installation port 21371 to be mated with the second connection wall 2137. The planar shape of the ring member 2135 is an arc shape, and the planar shape of the second cavity portion 2134 is an arc shape.

The nozzle holder 220 is provided with a first intake passage 221 and a second intake passage 222. A second nozzle (not shown) is installed at the air outlet of the first intake passage 221. The second nozzle is opposed to the first ejection channel 201. An air inlet of the second intake passage 222 is connected to an inner ring intake pipe 270. A third nozzle 271 is installed at the air outlet of the inner ring intake pipe 270. The material of the inner ring intake pipe 270 is different from that of the bottom cup 210. In this way, the inner ring air inlet pipe 270 is connected to the air outlet of the second air inlet passage 26 and the third nozzle 271, and the inner ring air inlet pipe 270 does not need to be manufactured by a core-drawing process, which can reduce the processing steps. It is less prone to defects and can have better sealing performance. The material of the inner ring air inlet pipe 270 may be a stainless steel pipe.

It should be noted that the inner ring air inlet pipe 270 can be casted with the bottom cup 210. The nozzle holder 220 is mounted on the first connection wall 2136. The nozzle holder 220 includes a third intake pipe 223 and a fourth intake pipe 224. The third intake pipe 223 is provided with a first intake passage 221. The fourth intake pipe 224 is provided with a second intake passage 222. One end of the inner ring air intake pipe 270 is fixed to the fourth air intake pipe 224, and the other end thereof is fixedly connected to the first connection wall 2136, the ring member 2135, the bottom cup cover 211, and the third nozzle 271.

The flamethrower 230 is mounted on the top wall 2111. The flamethrower 230 is formed with an outer ring fire hole 2301 and an inner ring fire hole 2302. For the installation manner of the flamethrower 30 on the bottom cup 210, refer to the burner 100 in the above-mentioned embodiment of the present application. For the structure and arrangement of the outer ring fire hole 2301, reference may be made to the burner 100 in the foregoing embodiment of the present application. For the structure and setting manner of the inner ring fire hole 2302, reference may be made to the burner 100 in the foregoing embodiment of the present application.

The flamethrower 230 includes an outer ring cavity 233 and an inner ring cavity 234. The outer ring cavity 233 surrounds the inner ring cavity 234 at intervals. The outer ring cavity 233 is provided with an outer gas mixing cavity 2331. The outer ring fire hole 2301 communicates with the outer gas mixing cavity 2331. The air outlet 2114 opened on the top wall 2111 is an outer ring air outlet. The air outlet 2114 communicates with the external gas mixing chamber 2331 and the first ejection channel 201. The inner ring cavity 234 is provided with an inner gas mixing cavity 2341. The inner ring fire hole 2302 communicates with the inner gas mixing cavity 2341. The mixed gas in the external gas mixing chamber 2331 is supplied from the first injection channel 201. The inner ring cavity 234 is provided with a second ejection channel 2340. The second ejection channel 2340 is opposite to the third nozzle 271 installed at the air outlet of the inner ring intake pipe 270. The mixed gas in the inner gas mixing chamber 2341 is supplied from the second injection channel 2340. In this way, the inner ring air inlet pipe 270 is connected to the air outlet of the second air inlet passage 222 and the third nozzle 271, and the inner ring air inlet pipe 270 does not need to be processed by a core-drawing process, which can reduce processing steps, and the inner ring air inlet pipe Defects are not easy to occur, and can have better sealing performance, which in turn can ensure the normal gas supply of the burner 200.

During the intake, the gas can enter the first intake passage 221 and the second intake passage 222, respectively. Then, the gas in the first intake passage 221 is ejected from the second nozzle to the primary air cavity 2131. The air and the gas are mixed into a mixed gas in the primary air cavity 2131 and enter the ejection channel 201, and are respectively ejected to the connection channel 202 by the ejection channel 201. Then, the mixed gas coming out of the connecting channel 202 enters the external gas mixing chamber 2331 through the air outlet 2114 for combustion. At the same time, the gas in the second intake passage 222 passes through the inner ring intake pipe 270 and is ejected from the third nozzle 271, and is mixed with the air. The gas-air-mixed gas mixture enters the second injection channel 2340 and is injected by the second injection channel 2340 to the inner gas mixing chamber 2341 for combustion.

For the structure of the flamethrower 230, reference may be made to the burner 100 in the foregoing embodiment of the present application.

The fire cover 240 includes an outer ring fire cover 241 and an inner ring fire cover 242. The outer ring fire cover 241 covers an outer ring cavity 233. The inner ring fire cover 242 covers the inner ring cavity 234. The outer ring fire cover 241 and the inner ring fire cover 242 are spaced apart. The inner part of the inner ring fire cover 242 is a solid structure.

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

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

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

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

Claims (20)

1. A bottom cup of a burner, comprising:

   A bottom cup cover body, the bottom cup cover body comprising a top wall and a first mounting wall, the top wall is provided with an air outlet, and the first mounting wall is convexly arranged on the top wall;

   A bottom cup base body, the bottom cup lid body being mounted on the bottom cup base body, the bottom cup base body comprising a bottom wall and a second mounting wall, the second mounting wall being convexly provided on the bottom wall, The top wall and the bottom wall are opposite to each other, and the bottom wall and the second mounting wall jointly form a mounting groove, and the first mounting wall is at least partially embedded in the mounting groove and is at least partially connected to the second mounting wall. Partially overlapped and joined, the bottom cup is provided with an ejection channel having a Venturi effect, and the ejection channel communicates with the air outlet.
2. The bottom cup of the burner according to claim 1, wherein the bottom cup lid body is riveted with the bottom cup base body.
3. The bottom cup of the burner according to claim 1, wherein the bottom cup cover body includes a first channel portion, the first channel portion is protruded on the top wall, and the first mounting wall surrounds The first channel portion is provided with a first groove,

   The bottom cup base includes a second channel portion, which is located at the bottom of the mounting groove, the second mounting wall surrounds the second channel portion, and the second channel portion is provided with a second channel portion. Groove,

   The first channel portion and the second channel portion are connected, and the first groove and the second groove together form the ejection channel.
4. The bottom cup of the burner according to claim 3, wherein an end surface of the first mounting wall is in contact with a top surface of the bottom wall.
5. The bottom cup of the combustor according to claim 3, wherein a contact between an end surface of the first mounting wall and a top surface of the bottom wall is processed by a precision turning process.
6. The bottom cup of the burner according to claim 1, wherein the bottom cup cover body is formed with a first joint surface opposite to the bottom wall, and the top surface of the bottom wall is formed with a second joint surface The second mounting wall surrounds the second joint surface, and the first joint surface and the second joint surface are joined.
7. The bottom cup of the burner according to claim 6, wherein at least one of the first joint surface and the second joint surface is processed by a precision turning process.
8. The bottom cup of the burner according to claim 1, wherein the bottom cup is provided with a first connection channel therein, the air outlet includes an outer ring air outlet, and the first connection channel is connected to the ejection port The air outlet end of the channel and the outer ring air outlet.
9. The bottom cup of the burner according to claim 8, wherein the outer ring air outlet comprises a first outer ring air outlet and a second outer ring air outlet arranged at intervals, and the first connection channel comprises a first A sub-connection channel and a second sub-connection channel, the first sub-connection channel and the second sub-connection channel are respectively connected on both sides of an air outlet end of the ejection channel, and the first sub-connection channel communicates with the first An outer ring air outlet and the ejection channel, and the second sub-connection channel communicates with the second outer ring air outlet and the ejection channel.
10. The bottom cup of the burner according to claim 8, wherein the outer ring air outlet is provided in an arc shape.
11. The bottom cup of the burner according to claim 9, characterized in that the first sub-connection channel is arc-connected to the air outlet end of the ejection channel, and the second sub-connection channel is connected to the ejection channel The outlet end of the cable is arc-shaped.
12. The bottom cup of the burner according to claim 9, wherein the air outlet comprises an inner ring air outlet, and the inner ring air outlet comprises a first inner ring air outlet and a second inner ring air outlet arranged at intervals A second connection channel is provided in the bottom cup, the second connection channel includes a third sub-connection channel and a fourth sub-connection channel, and the third sub-connection channel communicates the first sub-connection channel and the A first inner ring air outlet, the fourth sub-connection channel communicating with the second sub-connection channel and the second inner ring air outlet, located at the first inner ring air outlet and the second inner ring air outlet A secondary air passage is formed in a top surface portion of the top wall therebetween.
13. The bottom cup of the burner according to claim 12, wherein a positioning structure located in the secondary air passage is formed on a top surface portion of the top wall.
14. The bottom cup of the burner according to claim 1, wherein the bottom cup is provided with a primary air cavity, and the primary air cavity is protruded from the bottom cup lid body and the bottom cup base body. On the side of at least one of them, the primary air cavity is provided with a primary air cavity that communicates with the ejection channel.
15. The bottom cup of the burner according to claim 14, wherein at least one of the bottom cup lid body and the bottom cup base has a first center, and the primary air cavity has a second center, The first center and the second center are eccentrically disposed.
16. The bottom cup of the burner according to claim 15, wherein the planar shape of the bottom cup base is a circular arc shape, and the first center is a circle center where the plane of the bottom cup base is located. The planar shape of the primary air cavity is an arc, and the second center is the center of the circle where the plane of the primary air cavity is located.
17. A burner, comprising a flamethrower and a bottom cup of the burner according to any one of claims 1 to 16, wherein the flamethrower is arranged on the bottom cup cover body.
18. The burner according to claim 17, wherein at least one of the bottom cup lid body and the bottom cup base body has a first center, the flamethrower has a third center, and the third center Offset from the first center.
19. The burner according to claim 17, wherein the flamethrower is formed with a gas mixing cavity and a fire hole communicating with the gas mixing cavity, and the gas outlet is connected with the injection channel and the gas mixing cavity, The root of the fire hole is arc-shaped.
20. A gas cooker, comprising the burner according to any one of claims 17-19.

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