Combustor assembly and gas water heater

Abstract

The utility model relates to a combustor assembly and a gas water heater. The combustor assembly comprises a shell, a combustor and two heat insulation plates. The combustor is arranged in the shell. The two heat insulation plates are connected with the shell and located on the two opposite sides of the burner respectively, each heat insulation plate comprises a heat insulation body arranged between the burner and the side wall of the shell and a guide part connected with the top end of the heat insulation body, and the guide parts are obliquely arranged towards the flame area close to the burner. In the working process, secondary air collides with the guide part and rebounds to flow to a flame area at the top of the combustor, the secondary air needed by combustion can be further supplemented, combustion is more sufficient, the height of outer flame can be reduced, the flame gathering effect is achieved, and meanwhile the combustion working condition is improved; in addition, the guide part plays a shunting role, so that the air outlet of the air cooling cavity and the supplement of secondary air on the two opposite sides in the shell do not interfere with each other, and the flame gathering effect is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of water heaters, and in particular to a burner assembly and a gas water heater. Background Art

[0002] With the rapid development of gas water heaters, they are more and more widely used in life, and various types of gas water heaters have emerged, such as forced extraction, direct exhaust, forced exhaust, condensing, balanced, etc. Forced extraction gas water heaters in related technologies mostly adopt an atmospheric combustion structure, the premixing effect of gas and air is limited, and the part of excess air involved in combustion is limited, resulting in generally high outer flames and serious flame divergence, which affects the wall temperature rise around the cavity, and further affects the reliability of the whole machine. In addition, since the combustion is not very complete, the emissions are also relatively high. Summary of the invention

[0003] The first technical problem solved by the present application is to provide a burner assembly which can effectively gather the outer flame, improve the reliability of the whole machine, and make the combustion more complete.

[0004] The second technical problem solved by the present application is to provide a gas water heater which can effectively gather the outer flame, improve the reliability of the whole machine and make the combustion more complete.

[0005] The first technical problem mentioned above is solved by the following technical solution:

[0006] A burner assembly, comprising:

[0007] A housing, wherein a top of the housing is formed with an opening;

[0008] a burner disposed inside the housing; and

[0009] Two heat insulation plates are connected to the outer shell and are respectively located on opposite sides of the burner. The heat insulation plates include a heat insulation body arranged between the burner and the side wall of the outer shell and a guide portion connected to the top of the heat insulation body, and the guide portion is inclined toward the direction close to the central axis of the burner.

[0010] The burner assembly described in this application has the following beneficial effects compared with the background technology:

[0011] In the operation of the above-mentioned burner assembly, secondary air enters the interior of the shell from the bottom of the burner assembly. When the air on the opposite sides of the burner flows upward into the guide part, it collides with the guide part and rebounds to flow toward the flame area at the top of the burner, which can further supplement the secondary air required for combustion, making the combustion more complete, and can also reduce the height of the outer flame to form a flame gathering effect, while improving the combustion conditions; in addition, when the burner assembly is used in conjunction with an air-cooled cavity, the guide part plays a diversion role, so that the air outlet of the air-cooled cavity and the supplement of secondary air on the opposite sides of the shell do not interfere with each other, which is more conducive to the air outlet to form a flame gathering effect on the flame.

[0012] In one embodiment, the guide portion is configured as a plate, and the guide portion is arranged at an obtuse angle to the thermal insulation body; wherein the angle a between the guide portion and the thermal insulation body is 120° to 135°, and / or the extension length L1 of the guide portion in a direction away from the thermal insulation body is 6 mm to 7 mm.

[0013] In one of the embodiments, one end of the guide portion away from the heat insulation body is flush with a mounting surface of the housing for mounting the air-cooling cavity.

[0014] In one embodiment, the shell includes a first side panel and a first air regulating structure connected to the first side panel; a first ventilation hole is provided on the first side panel, and the burner includes at least one fire bar, and the ejection end of the fire bar is connected to the first ventilation hole; the first air regulating structure includes a first wind shield plate provided below each ejection end and a second wind shield plate located above each ejection end.

[0015] In one embodiment, an extension length L2 of the first wind shield plate in a direction away from the first side plate is 8 mm to 10 mm.

[0016] In one embodiment, the first side panel includes a first connecting plate, a second connecting plate and a third connecting plate connected in sequence, the first ventilation hole is formed on the first connecting plate, at least one second ventilation hole is formed on the second connecting plate, and the second wind shield plate and the second connecting plate form a first ventilation gap; the distance S1 between the end of the second wind shield plate away from the first connecting plate and the second connecting plate is 2 mm to 3 mm.

[0017] In one of the embodiments, the outer shell includes a side surrounding structure circumferentially arranged around the burner and a second air regulating structure connected to the bottom of the side surrounding structure; the second air regulating structure includes an air regulating plate and flanges respectively connected to the air regulating plates, and the flanges are connected to the side surrounding structure; a plurality of third ventilation holes are provided on the air regulating plate, and a second ventilation gap is formed between the air regulating plate and the side surrounding structure.

[0018] In one embodiment, the distance S2 between the air regulating plate and the side surrounding structure is 3 mm to 5 mm.

[0019] In one of the embodiments, the outer shell includes a side enclosure structure circumferentially arranged around the burner, a first air regulating structure connected to the side of the side enclosure structure, and a second air regulating structure connected to the bottom of the side enclosure structure; the first air regulating structure and the second air regulating structure are an integrated structure.

[0020] The above second technical problem is solved by the following technical solution:

[0021] A gas water heater comprises the burner assembly.

[0022] The gas water heater described in this application has the following beneficial effects compared with the background technology:

[0023] In the above-mentioned gas water heater, during operation, secondary air enters the interior of the outer shell from the bottom of the burner assembly. When the air on the opposite sides of the burner flows upward to the guide part, it collides with the guide part and rebounds to flow to the flame area at the top of the burner, which can further supplement the secondary air required for combustion, making the combustion more complete, and can also reduce the height of the outer flame to form a flame gathering effect, while improving the combustion conditions; in addition, when the burner assembly is used in conjunction with the air-cooling cavity, the guide part plays a diversion role, so that the air outlet of the air-cooling cavity and the supplement of secondary air on the opposite sides of the inner shell do not interfere with each other, which is more conducive to the air outlet to form a flame gathering effect on the flame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] FIG. 1 is a structural diagram of a burner assembly according to an embodiment of the present application.

[0027] FIG. 2 is a decomposition diagram of the structure shown in FIG. 1 .

[0028] FIG. 3 is a cross-sectional structural diagram of FIG. 1 at AA.

[0029] FIG. 4 is a structural diagram of the structure shown in FIG. 1 combined with an air-cooling cavity 40 .

[0030] FIG. 5 is a cross-sectional structural diagram of FIG. 1 at position BB.

[0031] Reference numerals:

[0032] 10. Shell; 11. Side surrounding structure; 111. First side panel; 1111. First ventilation hole; 1112. First connecting plate; 1113. Second connecting plate; 1114. Third connecting plate; 112. Second side panel; 113. Third side panel; 114. Fourth side panel; 115. Second connecting portion; 116. Mounting plate; 12. First air adjustment structure; 121. First air shield; 122. Second air shield; 123. First connecting portion; 124. Air inlet channel; 125. First ventilation interval; 13. Second air adjustment structure; 131. Air adjustment plate; 1311. Third ventilation hole; 132. Flanging; 133. Second ventilation interval; 20. Burner; 21. Fire grate; 211. Injection end; 30. Heat insulation board; 31. Heat insulation body; 32. Guide portion; 40. Air cooling cavity; 41. Air outlet. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] Referring to Figures 1 to 3, Figure 1 shows a structural diagram of a burner assembly according to an embodiment of the present application. Figure 2 shows an exploded structural diagram of the structure shown in Figure 1. Figure 3 shows a cross-sectional structural diagram of Figure 1 at AA. A burner assembly provided in an embodiment of the present application includes: a housing 10, a burner 20 and two heat insulation boards 30. Specifically, an opening is formed at the top of the housing 10. The burner 20 is arranged inside the housing 10. The two heat insulation boards 30 are connected to the housing 10 and are respectively located on opposite sides of the burner 20, and the heat insulation boards 30 include a heat insulation body 31 arranged between the burner 20 and the side wall of the housing 10 and a guide portion 32 connected to the top of the heat insulation body 31. The guide portion 32 is inclined toward the flame area close to the burner 20.

[0035] In the operation of the above-mentioned burner assembly, secondary air enters the interior of the shell 10 from the bottom of the burner assembly. When the air on the opposite sides of the burner 20 flows upward into the guide portion 32, it collides with the guide portion 32 and rebounds to flow toward the flame area at the top of the burner 20, which can further supplement the secondary air required for combustion, making the combustion more complete, and can also reduce the height of the outer flame to form a flame gathering effect, while improving the combustion conditions; in addition, please refer to Figure 4, when the burner assembly is used in conjunction with the air-cooling cavity 40, the guide portion 32 plays a diversion role, so that the air outlet 41 of the air-cooling cavity 40 and the secondary air on the opposite sides of the shell 10 do not interfere with each other, which is more conducive to the air outlet 41 to form a flame gathering effect on the flame.

[0036] Please refer to Figures 1 to 3. In one embodiment, the guide portion 32 is set as a plate, and the guide portion 32 and the insulation body 31 are set at an obtuse angle. Among them, the angle a between the guide portion 32 and the insulation body 31 is 120° to 135°. In this way, the size of the angle a is set appropriately, so that there is a better flame focusing effect, and the secondary air can be guided to the flame to make the combustion more complete, and the performance can be avoided when the angle a is set too large, resulting in a decrease in the combustion area of ​​the flame. When the angle a is set too small, the area of ​​the flame combustion area is reduced. Optionally, the angle a includes but is not limited to 120°, 122°, 125°, 128°, 130°, 133° or 135°, etc., and can also be set to any value other than 120° to 135°, for example, without limitation here.

[0037] Please refer to Figures 1 to 3. In some embodiments, the extension length L1 of the guide portion 32 in the direction away from the heat insulation body 31 is 6 mm to 7 mm. In this way, the extension length L1 is set appropriately, which can achieve a better flame focusing effect, and can guide the secondary air to the flame to make the combustion more complete, and can avoid the performance reduction caused by setting the length L1 too small, and can avoid the reduction of the combustion area of ​​the flame caused by setting L1 too long. Optionally, the length L1 includes but is not limited to 6 mm, 6.5 mm or 7 mm, and can also be flexibly adjusted and set to any value other than 6 mm to 7 mm according to actual needs, which is not limited here.

[0038] Please refer to Figures 1 to 3. In one embodiment, one end of the guide portion 32 away from the heat-insulating body 31 is flush with the mounting surface of the housing 10 for mounting the air-cooling cavity 40. In this way, on the one hand, the guide portion 32 will not extend into the air-cooling cavity 40 to block the airflow of the air-cooling cavity 40. On the other hand, the length L1 of the guide portion 32 is large, which is conducive to improving the flame focusing effect and guiding the secondary air to the flame for more complete combustion.

[0039] In some embodiments, the "guide portion 32" can be a "part of the thermal insulation body 31", that is, the "guide portion 32" and the "other portions of the thermal insulation body 31" are manufactured as one piece; it can also be an independent component separable from the "other portions of the thermal insulation body 31", that is, the "guide portion 32" can be manufactured independently and then combined with the "other portions of the thermal insulation body 31" into a whole.

[0040] Referring to FIGS. 1 to 3 , in one embodiment, the housing 10 includes a first side plate 111 and a first air regulating structure 12 connected to the first side plate 111. The first side plate 111 is provided with a first ventilation hole 1111, and the burner 20 includes at least one fire bar 21, and the ejection end 211 of the fire bar 21 is connected to the first ventilation hole 1111. Specifically, the first air regulating structure 12 includes a first air shield 121 disposed below each ejection end 211 and a second air shield 122 disposed above each ejection end 211. In this way, the first air shield 121 and the second air shield 122 are spaced apart to form a primary air entering the air inlet channel 124, and the primary air enters the ejection end 211 through the air inlet channel 124 formed between the first air shield 121 and the second air shield 122. The first air shield 121 and the second air shield 122 play a role in adjusting the primary air, so that the primary air in the area is not affected by the secondary air when entering the ejection end 211 vertically. In addition, the first wind deflector 121 and the second wind deflector 122 both form a diversion effect, so that the primary air and the secondary air are diverted from each other, reducing the loss of primary air, thereby improving the combustion performance and reducing emissions.

[0041] Please refer to FIG. 5 . In one embodiment, the extension length L2 of the first air shield 121 in the direction away from the first side plate 111 is 8 mm to 10 mm. In this way, the extension length L2 of the first air shield 121 is appropriately set. On the one hand, the extension length L2 is relatively large, so that the primary air and the secondary air can be better separated, the primary air loss is reduced, and the combustion performance is improved, the emissions are reduced, and the primary air can be adjusted, so that the primary air in this area is not affected by the secondary air that is vertically upward when entering the ejection end 211. On the other hand, the extension length L2 is not too large to increase the resistance of the primary air entering the ejection end 211.

[0042] Specifically, the extension length L2 includes but is not limited to 8mm, 8.5mm, 9mm, 9.5mm or 10mm, etc., and can be flexibly adjusted and set according to actual needs. Of course, the extension length L2 can also be set to any value less than 8mm and greater than 10mm.

[0043] Please refer to FIG. 3 and FIG. 5. In one embodiment, the first side plate 111 includes a first connecting plate 1112, a second connecting plate 1113 and a third connecting plate 1114 connected in sequence. The first ventilation hole 1111 is formed on the first connecting plate 1112, at least one second ventilation hole is formed on the second connecting plate 1113, and the second wind shield 122 and the second connecting plate 1113 form a first ventilation interval 125. In this way, the secondary air can enter the interior of the housing 10 through the first ventilation interval 125 and the second ventilation hole, and then flow upward to the flame of the burner 20 for combustion. In addition, the distance S1 between the end of the second wind shield 122 away from the first connecting plate 1112 and the second connecting plate 1113 is 2 mm to 3 mm. In this way, the distance S1 is set to be more appropriate, which plays a role in appropriately supplementing the secondary air above the ejection end 211. Specifically, the spacing S1 includes but is not limited to 2 mm, 2.5 mm or 3 mm, etc., and can be flexibly adjusted and set according to actual needs. Of course, the spacing S2 can also be set to any value less than 2 mm and greater than 3 mm.

[0044] Please refer to Figures 1, 2 and 5. In some embodiments, the second connecting plate 1113 is respectively perpendicular to the first connecting plate 1112 and the third connecting plate 1114. In addition, the second wind shield 122 includes but is not limited to being arranged at an obtuse angle with the first connecting plate 1112. The distance between the second wind shield 122 and the first wind shield 121 gradually decreases along the airflow direction, which plays a gathering role, so that the ejection capacity is enhanced, which is conducive to the entry of the primary air into the ejection end 211.

[0045] Referring to FIG. 1 , FIG. 2 and FIG. 5 , in some embodiments, the first air adjustment structure 12 further includes at least one first connection portion 123. The first connection portion 123 includes but is not limited to being detachably mounted on the first side plate 111. Specifically, the first connection portion 123 is connected to an end of the second wind shielding plate 122 away from the first connection plate 1112, and the first connection portion 123 is specifically mounted on the third connection plate 1114.

[0046] Referring to FIGS. 1 to 3 , in one embodiment, the housing 10 includes a side enclosure structure 11 disposed circumferentially around the burner 20 and a second air regulating structure 13 connected to the bottom of the side enclosure structure 11. The second air regulating structure 13 includes an air regulating plate 131 and flanges 132 respectively connected to the air regulating plate 131. The flanges 132 are connected to the side enclosure structure 11. The air regulating plate 131 is provided with a plurality of third ventilation holes 1311, and the air regulating plate 131 and the side enclosure structure 11 form a second ventilation interval 133. In this way, when in use, secondary air can enter the housing 10 through each of the third ventilation holes 1311 and the second ventilation interval 133 between the air regulating plate 131 and the side enclosure structure 11, and flow upward to the flame, so that the flame burns more fully. In addition, by adjusting the number and aperture size of the third ventilation holes 1311, the amount of secondary air added to the air can be flexibly adjusted accordingly, so that the combustion effect of the flame can be adjusted.

[0047] Referring to FIGS. 1 to 3 , in some embodiments, at least one second connection portion 115 is provided at the bottom of the side enclosure structure 11. Specifically, the second connection portion 115 abuts against or connects with the air regulating plate 131. In this way, the air regulating plate 131 can be stably mounted on the side enclosure structure 11, so that the side enclosure structure 11 and the air regulating plate 131 form a second ventilation gap 133 for secondary air to enter the interior of the housing 10, and the size of the second ventilation gap 133 remains unchanged.

[0048] Please refer to Figures 2, 3 and 5. In one embodiment, the distance S2 between the air regulating plate 131 and the side surrounding structure 11 is 3 mm to 5 mm. In this way, the distance S2 is set to a more appropriate size, the amount of secondary air supplemented is larger, and the flame combustion effect can be more sufficient.

[0049] Specifically, the spacing S2 includes but is not limited to 3mm, 3.5mm, 4mm, 4.5mm or 5mm, etc., and can be flexibly adjusted and set according to actual needs. Of course, the spacing S2 can also be set to any value less than 3mm and greater than 5mm.

[0050] 1 and 2, in some embodiments, the side enclosure structure 11 includes a first side panel 111, a second side panel 112, a third side panel 113, and a fourth side panel 114 connected end to end in sequence. The first side panel 111 and the third side panel 113 are disposed relatively spaced apart, and the second side panel 112 and the fourth side panel 114 are disposed relatively spaced apart.

[0051] Please refer to FIG. 1, FIG. 2 and FIG. 5. In some embodiments, in order to improve the installation stability of the burner 20, the injection end 211 of the burner 20 is installed on the first side plate 111. In addition, a mounting plate 116 is provided on the third side plate 113, and the burner 20 is fixedly mounted on the mounting plate 116. Specifically, each fire bar 21 of the burner 20 includes but is not limited to being fixed to the mounting plate 116 by various fasteners such as snap-fit, screws, pins, and rivets.

[0052] Please refer to Figures 1 and 2. In one embodiment, the housing 10 includes a side enclosure structure 11 circumferentially arranged around the burner 20, a first air adjustment structure 12 connected to the side of the side enclosure structure 11, and a second air adjustment structure 13 connected to the bottom of the side enclosure structure 11. The first air adjustment structure 12 and the second air adjustment structure 13 are integrated structures. Specifically, the first air adjustment structure 12 and the second air adjustment structure 13 include but are not limited to sheet metal integrated molding, die-casting integrated molding, milling integrated molding or bending molding, etc. In this way, the first air adjustment structure 12 and the second air adjustment structure 13 are formed into a whole, thereby reducing the number of parts, improving assembly efficiency, and reducing production costs.

[0053] Please refer to FIG. 1 to FIG. 3 . In one embodiment, a gas water heater is provided. The gas water heater includes the burner assembly of any one of the above embodiments.

[0054] During operation of the above-mentioned gas water heater, secondary air enters the interior of the outer shell 10 from the bottom of the burner assembly. When the air on the opposite sides of the burner 20 flows upward to the guide portion 32, it collides with the guide portion 32 and rebounds to flow toward the flame area at the top of the burner 20, which can further supplement the secondary air required for combustion, making the combustion more complete, and can also reduce the height of the outer flame to form a flame gathering effect, while improving the combustion conditions; in addition, when the burner assembly is used in conjunction with the air-cooling cavity 40, the guide portion 32 plays a diversion role, so that the air outlet 41 of the air-cooling cavity 40 and the secondary air on the opposite sides of the inner shell 10 do not interfere with each other, which is more conducive to the air outlet 41 to form a flame gathering effect on the flame.

[0055] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0056] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A burner assembly, characterized in that: The burner assembly comprises: Housing (10); a burner (20), the burner (20) being disposed inside the housing (10); and Two heat insulation plates (30), the two heat insulation plates (30) are connected to the outer shell (10) and are respectively located on opposite sides of the burner (20), the heat insulation plates (30) include a heat insulation body (31) arranged between the burner (20) and the side wall of the outer shell (10) and a guide portion (32) connected to the top end of the heat insulation body (31), and the guide portion (32) is inclined toward the flame area close to the burner (20).

2. The burner assembly according to claim 1, characterized in that: The guide portion (32) is configured as a plate, and the guide portion (32) and the heat insulation body (31) are arranged at an obtuse angle; wherein the angle a between the guide portion (32) and the heat insulation body (31) is 120° to 135°, and / or the extension length L1 of the guide portion (32) in a direction away from the heat insulation body (31) is 6 mm to 7 mm.

3. The burner assembly according to claim 1, characterized in that: One end of the guide portion (32) away from the heat-insulating body (31) is flush with a mounting surface on the housing (10) for mounting an air-cooling cavity (40).

4. The burner assembly according to claim 1, characterized in that: The housing (10) comprises a first side plate (111) and a first air regulating structure (12) connected to the first side plate (111); the first side plate (111) is provided with a first ventilation hole (1111); the burner (20) comprises at least one fire bar (21); the ejection end (211) of the fire bar (21) is connected to the first ventilation hole (1111); the first air regulating structure (12) comprises a first air shield (121) provided below each ejection end (211) and a second air shield (122) located above each ejection end (211).

5. The burner assembly according to claim 4, characterized in that: An extension length L2 of the first wind shielding plate (121) in a direction away from the first side plate (111) is 8 mm to 10 mm.

6. The burner assembly according to claim 4, characterized in that: The first side plate (111) comprises a first connecting plate (1112), a second connecting plate (1113) and a third connecting plate (1114) which are connected in sequence; the first ventilation hole (1111) is formed on the first connecting plate (1112); at least one second ventilation hole is formed on the second connecting plate (1113); the second wind shield plate (122) and the second connecting plate (1113) form a first ventilation gap (125); and a distance S1 between an end of the second wind shield plate (122) away from the first connecting plate (1112) and the second connecting plate (1113) is 2 mm to 3 mm.

7. The burner assembly according to claim 1, characterized in that: The housing (10) comprises a side enclosure structure (11) circumferentially arranged around the burner (20) and a second air regulating structure (13) connected to the bottom of the side enclosure structure (11); the second air regulating structure (13) comprises an air regulating plate (131) and flanges (132) respectively connected to the air regulating plates (131), and the flanges (132) are connected to the side enclosure structure (11); the air regulating plate (131) is provided with a plurality of third ventilation holes (1311), and the air regulating plate (131) and the side enclosure structure (11) form a second ventilation gap (133).

8. The burner assembly according to claim 7, characterized in that: The distance S2 between the air regulating plate (131) and the side surrounding structure (11) is 3 mm to 5 mm.

9. The burner assembly according to claim 1, characterized in that: The casing (10) comprises a side enclosure structure (11) circumferentially arranged around the burner (20), a first air regulating structure (12) connected to the side of the side enclosure structure (11), and a second air regulating structure (13) connected to the bottom of the side enclosure structure (11); the first air regulating structure (12) and the second air regulating structure (13) are an integrated structure.

10. A gas water heater, characterized in that: The gas water heater comprises the burner assembly according to any one of claims 1 to 9.

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