Combustor of gas oven and gas oven

Abstract

The utility model discloses a burner of a gas oven and the gas oven, the burner of the gas oven comprises a fire distributor, the fire distributor is provided with an ignition needle installation cavity, an inner gas cavity and an outer gas cavity which are sequentially arranged from inside to outside; an inner fire hole, an outer fire hole and an ignition hole are formed in the infrared combustion plate, the infrared combustion plate is arranged on the upper side of the inner gas cavity and the upper side of the outer gas cavity, the outer fire hole is communicated with the outer gas cavity, and the inner fire hole and the ignition hole are both communicated with the inner gas cavity; the ignition needle is mounted in the ignition needle mounting cavity and extends out of the ignition needle mounting cavity to the position above the ignition hole; and the combustion plate fixing structure is arranged between the infrared combustion plate and the fire distributor and is used for fixing the infrared combustion plate on the fire distributor.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a burner and a gas oven for a gas oven. Background Technology

[0002] Existing gas oven burners typically have only one burner tube. A single burner tube provides relatively low heat output, making it impossible to provide high heat output or adjust to lower heat output. Furthermore, the heating is uneven, which fails to meet user needs.

[0003] Therefore, there is an urgent need for a burner to solve the above problems. Utility Model Content

[0004] This utility model aims to at least partially solve one of the problems existing in the prior art. To this end, this utility model proposes a burner for a gas oven. By setting an inner gas chamber and an outer gas chamber, it obtains independently controlled inner and outer ring flames, thereby making the combustion power of the gas oven more adjustable and thus meeting the diverse cooking requirements of users. The infrared combustion plate can greatly improve the energy efficiency of the gas oven. The infrared combustion plate is fixed on the burner by the combustion plate fixing structure, which is simple and compact.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A burner for a gas oven includes:

[0007] The ignition distributor has an ignition needle mounting cavity, an inner gas cavity, and an outer gas cavity arranged sequentially from the inside to the outside.

[0008] An infrared combustion plate has an inner flame hole, an outer flame hole, and an ignition hole. The infrared combustion plate is located on the upper side of the inner gas cavity and the outer gas cavity. The outer flame hole is connected to the outer gas cavity, and the inner flame hole and the ignition hole are both connected to the inner gas cavity.

[0009] An ignition needle is installed in the ignition needle mounting cavity and extends from the ignition needle mounting cavity to above the ignition hole;

[0010] A combustion plate fixing structure is installed between the infrared combustion plate and the flame distributor to fix the infrared combustion plate on the flame distributor.

[0011] Optionally, the combustion plate fixing structure includes:

[0012] An outer fixing ring is connected to the outside of the flame distributor, and the outer end of the infrared combustion plate is engaged between the outer fixing ring and the flame distributor;

[0013] An inner fixing ring is connected to the inner side of the flame distributor, and the inner end of the infrared combustion plate is opened between the inner fixing ring and the flame distributor.

[0014] Optionally, a connecting flange is provided on the outer periphery of the upper end of the flame distributor, and a limiting step is provided on the outer side wall of the outer gas chamber. The limiting step abuts against the bottom side of the outer end of the infrared combustion plate. The outer fixing ring includes a first outer fixing part, a second outer fixing part, and a third outer fixing part connected sequentially from the inside to the outside. The first outer fixing part abuts against the upper side of the outer end of the infrared combustion plate, the second outer fixing part abuts against the outer periphery of the infrared combustion plate, and the third outer fixing part is located on the upper side of the connecting flange and is detachably connected to the connecting flange.

[0015] Optionally, it also includes screws, a first connecting hole is provided on the connecting flange, and a second connecting hole corresponding to the first connecting hole is provided on the third outer fixing part. The connecting flange is detachably connected to the third outer fixing part by the screw passing through the first connecting hole and the second connecting hole.

[0016] Optionally, the inner fixing ring includes a first inner fixing part and a second inner fixing part connected to each other. The first inner fixing part abuts against the upper side of the inner end of the infrared combustion plate, and the second inner fixing part abuts against the inner sidewall of the ignition needle mounting cavity.

[0017] Optionally, it also includes an outer ring ejector tube and an inner ring ejector tube. One end of the outer ring ejector tube is connected to a gas supply pipe outside the gas oven, and the other end of the outer ring ejector tube is provided with an outer ring gas outlet, which is connected to the outer gas cavity. One end of the inner ring ejector tube is connected to a gas supply pipe outside the gas oven, and the other end of the inner ring ejector tube is provided with an inner ring gas outlet, which is connected to the inner gas cavity.

[0018] Optionally, it also includes a guide plate, which has multiple guide holes and is disposed inside the outer air cavity and in front of the outer ring air outlet.

[0019] Optionally, the shape of the cross-section of the fire distributor along the horizontal direction is square.

[0020] Optionally, it also includes a bracket mounted on the bottom side of the fire distributor.

[0021] Another aspect of this utility model provides a gas oven, including a cooking liner and a burner of the gas oven described above. The cooking liner has a cooking cavity and a combustion cavity located below the cooking cavity. The burner is installed in the combustion cavity. The front side of the cooking liner has a ventilation hole communicating with the combustion cavity.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] The burner of the gas oven provided by this utility model, by setting an inner gas chamber and an outer gas chamber, can obtain independently controlled inner and outer ring flames, thereby making the combustion power of the gas oven more adjustable and thus meeting the diverse cooking requirements of users. The infrared combustion plate can greatly improve the energy efficiency of the gas oven. The infrared combustion plate is fixed on the burner by the combustion plate fixing structure, which is simple and compact. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the burner of the gas oven provided by this utility model;

[0025] Figure 2 yes Figure 1 Top view;

[0026] Figure 3 yes Figure 2 Sectional view at point AA;

[0027] Figure 4 yes Figure 3 Enlarged view of point C in the middle;

[0028] Figure 5 yes Figure 3 Enlarged view of point D in the middle;

[0029] Figure 6 This is a three-dimensional structural diagram of the burner of the gas oven provided by this utility model after the infrared combustion plate has been removed;

[0030] Figure 7 This is a three-dimensional structural diagram of the gas oven provided by this utility model;

[0031] Figure 8 yes Figure 7 The main view;

[0032] Figure 9 yes Figure 8 Sectional view at the point indicated by the middle arrow BB.

[0033] In the picture:

[0034] 1. Flange; 11. Connecting flange; 12. Limiting step; 101. External gas chamber; 102. Internal gas chamber; 103. Ignition needle mounting chamber;

[0035] 2. Combustion plate fixing structure; 21. Outer fixing ring; 211. First outer fixing part; 212. Second outer fixing part; 213. Third outer fixing part; 22. Inner fixing ring; 221. First inner fixing part; 222. Second inner fixing part;

[0036] 31. Outer ring ejector tube; 311. Outer ring outlet; 32. Inner ring ejector tube; 321. Inner ring outlet;

[0037] 4. Ignition needle;

[0038] 5. Flow guide plate; 51. Flow guide hole;

[0039] 6. Bracket;

[0040] 7. Infrared combustion plate;

[0041] 8. Screws;

[0042] 9. Cooking inner pot; 91. Ventilation hole; 100. Cooking cavity; 200. Combustion cavity. Detailed Implementation

[0043] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0044] Please refer to Figures 1-9 This utility model provides a burner for a gas oven, including a burner distributor 1, an infrared combustion plate 7, an ignition needle 4, and a combustion plate fixing structure 2. The burner distributor 1 has an ignition needle 4 mounting cavity 103, an inner gas cavity 102, and an outer gas cavity 101 arranged sequentially from the inside to the outside. The infrared combustion plate 7 has an inner flame hole, an outer flame hole, and an ignition hole. The infrared combustion plate 7 is positioned above the inner gas cavity 102 and the outer gas cavity 101. The outer flame hole communicates with the outer gas cavity 101, while the inner flame hole and the ignition hole communicate with the inner gas cavity 102. The ignition needle 4 is installed in the ignition needle 4 mounting cavity 103 and extends from the ignition needle 4 mounting cavity 103 to above the ignition hole. The combustion plate fixing structure 2 is installed between the infrared combustion plate 7 and the burner distributor 1 to fix the infrared combustion plate 7 to the burner distributor 1.

[0045] The burner of the gas oven provided by this utility model, by setting an inner gas chamber 102 and an outer gas chamber 101, can obtain individually controlled inner and outer ring flames, thereby making the combustion power of the gas oven more adjustable and thus meeting the diverse cooking requirements of users. The infrared combustion plate 7 can greatly improve the energy efficiency of the gas oven. The infrared combustion plate 7 is fixed on the burner 1 by the combustion plate fixing structure 2, which is simple and compact.

[0046] Optionally, the combustion plate fixing structure 2 includes an outer fixing ring 21 and an inner fixing ring 22. The outer fixing ring 21 is connected to the outer side of the flame distributor 1, and the outer end of the infrared combustion plate 7 is engaged between the outer fixing ring 21 and the flame distributor 1. The inner fixing ring 22 is connected to the inner side of the flame distributor 1, and the inner end of the infrared combustion plate 7 is positioned between the inner fixing ring 22 and the flame distributor 1, thereby achieving stable installation of the infrared combustion plate 7 on the flame distributor 1, and the structure is simple.

[0047] Optionally, a connecting flange 11 is provided on the outer periphery of the upper end of the flame distributor 1, and a limiting step 12 is provided on the outer wall of the outer gas chamber 101. The limiting step 12 abuts against the bottom side of the outer end of the infrared combustion plate 7. The outer fixing ring 21 includes a first outer fixing part 211, a second outer fixing part 212 and a third outer fixing part 213 connected sequentially from the inside to the outside. The first outer fixing part 211 abuts against the upper side of the outer end of the infrared combustion plate 7, the second outer fixing part 212 abuts against the outer periphery of the infrared combustion plate 7, and the third outer fixing part 213 is located on the upper side of the connecting flange 11 and is detachably connected to the connecting flange 11, thereby realizing the limiting and fixing of the outer end of the infrared combustion plate 7 on the flame distributor 1.

[0048] Optionally, it also includes screws 8, a first connecting hole is provided on the connecting flange 11, and a second connecting hole corresponding to the first connecting hole is provided on the third outer fixing part 213. The connecting flange 11 is detachably connected to the third outer fixing part 213 by the screws 8 passing through the first connecting hole and the second connecting hole, thereby realizing the detachable connection between the outer fixing ring 21 and the flame distributor 1, so as to fix the infrared combustion plate 7 between the flame distributor 1 and the outer fixing ring 21.

[0049] Optionally, the inner fixing ring 22 includes a first inner fixing part 221 and a second inner fixing part 222 connected to each other. The first inner fixing part 221 abuts against the upper side of the inner end of the infrared combustion plate 7, and the second inner fixing part 222 abuts against the inner side wall of the ignition needle 4 mounting cavity 103. This allows the second fixing part to be stably connected to the inner wall of the mounting cavity through an interference fit, thereby achieving the limiting and fixing of the inner end of the infrared combustion plate 7 on the igniter 1. The structure is simple, the installation is convenient, and the stability is good.

[0050] Optionally, it also includes an outer ring ejector tube 31 and an inner ring ejector tube 32. One end of the outer ring ejector tube 31 is connected to the gas supply pipe outside the gas oven, and the other end of the outer ring ejector tube 31 is provided with an outer ring outlet 311, which is connected to the outer gas chamber 101 to deliver gas to the outer gas chamber 101. One end of the inner ring ejector tube 32 is connected to the gas supply pipe outside the gas oven, and the other end of the inner ring ejector tube 32 is provided with an inner ring outlet 321, which is connected to the inner gas chamber 102 to deliver gas to the inner gas chamber 102.

[0051] Optionally, it also includes a guide plate 5, which has multiple guide holes 51. The guide plate 5 is located in the outer air chamber 101 and in front of the outer ring air outlet 311, thereby obstructing the combustion gas and air in the outer air chamber 101 to a certain extent, so that the combustion gas and air can be further mixed, improving the mixing uniformity and thus improving the combustion efficiency.

[0052] Optionally, the shape of the horizontal cross section of the burner 1 is square to suit a square gas oven.

[0053] Optionally, a bracket 6 is also included, which is mounted on the underside of the burner 1 to mount the burner in the cooking liner 9 of the gas oven.

[0054] Another aspect of this utility model provides a gas oven, including a cooking liner 9 and a burner of the gas oven described above. The cooking liner 9 has a cooking cavity 100 and a combustion cavity 200 located below the cooking cavity 100. The burner is installed in the combustion cavity 200. The front side of the cooking liner 9 has a ventilation hole 91 communicating with the combustion cavity 200 to allow air to enter.

[0055] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A burner for a gas-fired oven, characterized in that, include: The ignition distributor (1) has an ignition needle mounting cavity (103), an inner gas cavity (102) and an outer gas cavity (101) arranged sequentially from the inside to the outside. An infrared combustion plate (7) is provided with an inner flame hole, an outer flame hole and an ignition hole. The infrared combustion plate (7) is located on the upper side of the inner gas chamber (102) and the outer gas chamber (101). The outer flame hole is connected to the outer gas chamber (101), and the inner flame hole and the ignition hole are both connected to the inner gas chamber (102). An ignition needle (4) is installed in the ignition needle mounting cavity (103) and extends from the ignition needle mounting cavity (103) to above the ignition hole; The combustion plate fixing structure (2) is installed between the infrared combustion plate (7) and the flame distributor (1) to fix the infrared combustion plate (7) on the flame distributor (1).

2. The burner of the gas oven according to claim 1, characterized in that, The combustion plate fixing structure (2) includes: The outer fixing ring (21) is connected to the outside of the flame distributor (1), and the outer end of the infrared combustion plate (7) is engaged between the outer fixing ring (21) and the flame distributor (1); The inner fixing ring (22) is connected to the inner side of the flame distributor (1), and the inner end of the infrared combustion plate (7) is opened between the inner fixing ring (22) and the flame distributor (1).

3. The burner of the gas oven according to claim 2, characterized in that, The outer periphery of the upper end of the flame distributor (1) is provided with a connecting flange (11), and the outer wall of the outer gas chamber (101) is provided with a limiting step (12). The limiting step (12) abuts against the bottom side of the outer end of the infrared combustion plate (7). The outer fixing ring (21) includes a first outer fixing part (211), a second outer fixing part (212) and a third outer fixing part (213) connected sequentially from the inside to the outside. The first outer fixing part (211) abuts against the upper side of the outer end of the infrared combustion plate (7), the second outer fixing part (212) abuts against the outer periphery of the infrared combustion plate (7), and the third outer fixing part (213) is located on the upper side of the connecting flange (11) and is detachably connected to the connecting flange (11).

4. The burner of the gas oven according to claim 3, characterized in that, It also includes screws (8), the connecting flange (11) is provided with a first connecting hole, the third outer fixing part (213) is provided with a second connecting hole corresponding to the first connecting hole, and the connecting flange (11) is detachably connected to the third outer fixing part (213) by the screws (8) passing through the first connecting hole and the second connecting hole.

5. The burner of the gas oven according to claim 2, characterized in that, The inner fixing ring (22) includes a first inner fixing part (221) and a second inner fixing part (222) connected to each other. The first inner fixing part (221) abuts against the upper side of the inner end of the infrared combustion plate (7), and the second inner fixing part (222) abuts against the inner sidewall of the ignition needle mounting cavity (103).

6. The burner of the gas oven according to any one of claims 1-5, characterized in that, It also includes an outer ring ejector tube (31) and an inner ring ejector tube (32). One end of the outer ring ejector tube (31) is connected to the gas supply pipe outside the gas oven, and the other end of the outer ring ejector tube (31) is provided with an outer ring outlet (311). The outer ring outlet (311) is connected to the outer air chamber (101). One end of the inner ring ejector tube (32) is connected to the gas supply pipe outside the gas oven, and the other end of the inner ring ejector tube (32) is provided with an inner ring outlet (321). The inner ring outlet (321) is connected to the inner air chamber (102).

7. The burner of the gas oven according to claim 6, characterized in that, It also includes a guide plate (5), which has multiple guide holes (51) and is located in the outer air cavity (101) and in front of the outer ring air outlet (311).

8. The burner of the gas oven according to any one of claims 1-5, characterized in that, The cross-section of the fire distributor (1) along the horizontal direction is square.

9. The burner of the gas oven according to any one of claims 1-5, characterized in that, It also includes a bracket (6) which is mounted on the bottom side of the fire distributor (1).

10. A gas-fired oven, characterized in that, The oven includes a cooking liner (9) and a burner of a gas oven according to any one of claims 1-9. The cooking liner (9) has a cooking cavity (100) and a combustion cavity (200) located below the cooking cavity (100). The burner is installed in the combustion cavity (200). The front side of the cooking liner (9) has a ventilation hole (91) communicating with the combustion cavity (200).

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