Combustor assembly and gas water heater

Abstract

The utility model discloses a burner assembly which comprises a shell, a burner body, a gas outlet, a gas inlet, a gas outlet, a gas outlet, a gas inlet, a gas outlet, a gas inlet and a gas outlet, and is characterized in that the shell is provided with a mounting cavity; the induction needle is installed on the shell and located above the fire grate, and the induction needle is provided with an induction part which extends downwards to be close to the fire grate. Therefore, the induction needle not only can induce flames in a normal combustion state of gas, but also can induce the flames under the condition that the flame height is low or the flame position deviates during oxygen deficit, so that the risk of flameout and the like of the combustor assembly due to the fact that the flame height is low or the flame position deviates during oxygen deficit is reduced; and the sensor has relatively high sensing sensitivity. In addition, the utility model further discloses a gas water heater with the burner assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of gas appliances, in particular to a burner assembly and a gas water heater. Background Art

[0002] The burner of a gas water heater usually includes a fire grate and an ignition needle and a sensing needle located above the fire grate. In the prior art, the air outlet of the fire grate is generally located at the upper end of the fire grate, and the sensing needle is generally set to be parallel to the upper end of the fire grate. Under normal ventilation, the flame burns normally, and the sensing needle can sense the flame normally. However, in some oxygen-deficient environments, such as when doors and windows are closed, there is a flame-away state when the gas water heater is ignited and burned, that is, the flame deviates from the sensing position of the sensing needle, or the flame height is relatively low. At this time, the sensing needle cannot sense the flame, which can easily cause the gas water heater to flame out, affecting the normal use of the gas water heater. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a burner assembly, wherein the sensing needle can detect flames in an oxygen-deficient environment and has a high sensing sensitivity.

[0004] The utility model also provides a gas water heater equipped with the burner assembly.

[0005] The burner assembly according to the embodiment of the utility model includes: a shell having an installation cavity, a fire bar installed in the installation cavity, and an air outlet at the upper end of the fire bar; a sensing needle installed in the shell and located above the fire bar, and the sensing needle has a sensing portion extending downward close to the fire bar.

[0006] The burner assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0007] The sensing needle of the embodiment of the utility model has a sensing portion extending downward close to the fire grate, so that the sensing needle can not only sense the flame in the normal combustion state of the gas, but also can sense the flame when the flame height is low or the flame position is deviated due to lack of oxygen, thereby reducing the risk of the burner assembly going out due to lack of oxygen, low flame height or flame separation, and having a high sensing sensitivity.

[0008] According to some embodiments of the utility model, the sensing needle has a connecting portion connected to the upper end of the sensing portion, the connecting portion is mounted on the shell and arranged horizontally; the angle between the central axis of the sensing portion and the central axis of the connecting portion is an obtuse angle.

[0009] According to some embodiments of the utility model, an ignition needle group is further included, which is installed on the shell and located on one side of the sensing needle, and the horizontal distance between the upper end of the sensing part and the ignition needle group is greater than the horizontal distance between the lower end of the sensing part and the ignition needle group.

[0010] According to some embodiments of the present utility model, the sensing portion and the connecting portion are an integrated structure, and the sensing portion is formed by bending the connecting portion toward the fire bar and the ignition needle group.

[0011] According to some embodiments of the present invention, the ignition needle group includes a first ignition needle and a second ignition needle installed on the housing, the first ignition needle is located between the sensing needle and the second ignition needle, and the second ignition needle has a bent section bent toward the first ignition needle.

[0012] According to some embodiments of the present invention, the ignition needle group further includes a second mounting seat, the second mounting seat is mounted on the housing, and the first ignition needle and the second ignition needle are both mounted on the second mounting seat.

[0013] According to some embodiments of the present invention, the ignition needle group and the sensing needle are both installed on a side wall of the shell, and the shell has a first connecting wall located below the ignition needle group and the sensing needle, and the first connecting wall is provided with at least one ventilation hole connected to the installation cavity.

[0014] According to some embodiments of the utility model, the shell includes a first plate, a second plate and a third plate, the first plate is in a "U" shape, the second plate is connected to the U-shaped opening of the first plate, the third plate is connected to the first plate and is located below the first plate, the installation cavity is formed by the first plate, the second plate and the third plate, and the sensing needle and the ignition needle group are both installed on the second plate.

[0015] According to some embodiments of the utility model, the lower edge of the second plate is bent toward the first plate to form the first connecting wall, the free end of the first connecting wall is bent downward to form the second connecting wall, the second connecting wall is provided with a connecting hole connected to the air inlet of the fire grate, and an air supply device for supplying air to the fire grate is installed below the first connecting wall.

[0016] A gas water heater according to an embodiment of the utility model is provided with a burner assembly according to any one of the above embodiments.

[0017] The gas water heater according to the embodiment of the utility model has at least the following beneficial effects:

[0018] By setting up a burner assembly of any of the above-mentioned embodiments, the sensing needle of the burner assembly has a sensing portion extending downward close to the fire grate, whereby the sensing portion can sense the flame near the fire discharge outlet, and thus can sense the flame even when the flame height is low or the flame position is deviated. As a result, the sensing needle can not only sense the flame in the normal combustion state of the gas, but also can sense the flame when the flame height is low or the flame position is deviated in the absence of oxygen, thereby reducing the risk of the gas water heater being flamed out due to lack of oxygen, low flame height or flame separation, and facilitating normal use by users.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 A schematic diagram of a burner assembly according to an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of a burner assembly according to an embodiment of the present utility model;

[0023] Figure 3 It is a cross-sectional schematic diagram of a burner assembly according to an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of a sensing needle according to an embodiment of the present utility model;

[0025] Figure 5 This is a front view of the sensing needle of the embodiment of the utility model;

[0026] Figure 6 A side view of a sensing needle according to an embodiment of the present utility model;

[0027] Figure 7 A schematic diagram of an ignition needle assembly according to an embodiment of the utility model;

[0028] Figure 8 It is a side view of an ignition needle assembly according to an embodiment of the utility model;

[0029] Fig. 9 It is a partial schematic diagram of a burner assembly of an embodiment of the utility model;

[0030] Fig.10 for Fig. 9 Another perspective diagram of the burner assembly;

[0031] Fig.11 A schematic diagram of a housing according to an embodiment of the present utility model;

[0032] Fig.12 It is a schematic diagram of an exploded view of a shell according to an embodiment of the present utility model.

[0033] Reference numerals:

[0034] Shell 100, installation cavity 101, first plate 110, second plate 120, first connecting wall 121, second connecting wall 122, third plate 130, ventilation hole 140, connecting hole 150, fire bar 160, air supply device 170;

[0035] The sensing needle 200, the connecting portion 210, the sensing portion 220, and the first mounting seat 230;

[0036] The ignition needle assembly 300 , the first ignition needle 310 , the second ignition needle 320 , the bending section 321 , and the second mounting seat 330 . DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 invention.

[0039] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] Reference Figures 1 to 6The utility model provides a burner assembly in one embodiment, which includes a housing 100 and a sensing needle 200. The housing 100 has a mounting cavity 101, a fire bar 160 is mounted in the mounting cavity 101, and the upper end of the fire bar 160 has an air outlet. The sensing needle 200 is mounted on the housing 100 and located above the fire bar 160. The sensing needle 200 has a sensing portion 220 extending downward and close to the fire bar 160.

[0042] In the above structure, the sensing needle 200 has a sensing portion 220 extending downwardly close to the fire bar 160, so that the sensing portion 220 can sense the flame near the air outlet of the fire bar 160, and thus can sense the flame even when the flame height is low or the flame position is deviated. As a result, the sensing needle 200 can not only sense the flame when the gas is burning normally, but also sense the flame when the flame height is low or the flame position is deviated in the absence of oxygen, thereby reducing the risk of the burner assembly going out due to low flame height or flame separation due to lack of oxygen, having a high sensing sensitivity, and facilitating normal use by users.

[0043] Reference Figures 1 to 6 In some embodiments, the sensing needle 200 has a connecting portion 210 connected to the upper end of the sensing portion 220, and the connecting portion 210 is mounted on the housing 100 and arranged horizontally. The angle between the central axis of the sensing portion 220 and the central axis of the connecting portion 210 is an obtuse angle.

[0044] In the above structure, by horizontally arranging the connecting part 210 and setting the angle between the central axis of the sensing part 220 and the central axis of the connecting part 210 to be an obtuse angle, that is, the sensing part 220 is not arranged vertically downward, but is arranged obliquely downward, thereby increasing the sensing range of the sensing part 220, and thus enabling the sensing needle 200 to be more sensitive to the flame when the flame height is low or the flame position is deviated in the absence of oxygen, thereby reducing the risk of the burner assembly going out due to low flame height or flame separation due to lack of oxygen, and facilitating normal use by users.

[0045] It can be understood that the angle between the central axis of the sensing part 220 and the central axis of the connecting part 210 is an obtuse angle. Specifically, the angle between the central axis of the sensing part 220 and the central axis of the connecting part 210 can be 120°, 150°, etc., and the present invention does not make any specific limitation on this.

[0046] Reference Figures 1 to 8 In some embodiments, the burner assembly further includes an ignition needle group 300, which is mounted on the housing 100 and located on one side of the sensing needle 200, and the horizontal distance between the upper end of the sensing part 220 and the ignition needle group 300 is greater than the horizontal distance between the lower end of the sensing part 220 and the ignition needle group 300.

[0047] In the above structure, the ignition needle group 300 is installed on one side of the sensing needle 200, and the horizontal distance between the upper end of the sensing part 220 and the ignition needle group 300 is greater than the horizontal distance between the lower end of the sensing part 220 and the ignition needle group 300. This can reduce the installation space of the ignition needle group 300 and the sensing needle 200, and also enable the sensing part 220 to span across multiple air outlets on the fire row 160, thereby better detecting the flame and greatly improving the performance of sensing the flame.

[0048] It is understandable that the horizontal distance between the upper end of the sensing part 220 and the ignition needle group 300 is greater than the horizontal distance between the lower end of the sensing part 220 and the ignition needle group 300. Specifically, the sensing part 220 can be directly tilted relative to the connecting part 210 toward the ignition needle group 300.

[0049] Reference Figures 1 to 8 In some embodiments, the sensing portion 220 and the connecting portion 210 are an integrated structure, and the sensing portion 220 is formed by bending the connecting portion 210 toward the fire bar 160 and the ignition needle group 300 .

[0050] In the above structure, the sensing part 220 is formed by bending the connecting part 210 toward the fire bar 160 and the ignition needle group 300, that is, one end of the connecting part 210 located in the installation cavity 101 is bent downward to approach the fire bar 160, and is bent to the side toward the ignition needle group 300, thereby forming the sensing part 220. By setting the sensing part 220 and the connecting part 210 as an integral bending structure, the processing and manufacturing of the sensing needle 200 can be facilitated, and only the connecting part 210 needs to be bent, and no other connection and assembly process is required, and the structure is simple and easy to produce.

[0051] Reference Figures 1 to 8 In some embodiments, the ignition needle assembly 300 includes a first ignition needle 310 and a second ignition needle 320 installed on the housing 100 , the first ignition needle 310 is located between the sensing needle 200 and the second ignition needle 320 , and the second ignition needle 320 has a bent section 321 bent toward the first ignition needle 310 .

[0052] In the above structure, the first ignition needle 310 is arranged between the sensing needle 200 and the second ignition needle 320, and a bending section 321 is provided on the second ignition needle 320 which is bent toward the first ignition needle 310. Thus, the discharge distance between the tip of the second ignition needle 320 and the tip of the first ignition needle 310 can be shortened, thereby facilitating the generation of an ignition arc. At the same time, while ensuring that the sensing needle 200 is bent close to the needle tip of the ignition needle group 300, it will not interfere with the installation of the sensing needle 200, thereby facilitating the installation layout of the sensing needle 200 and the ignition needle group 300.

[0053] It is understandable that the second ignition needle 320 has a bending section 321 that bends toward the first ignition needle 310. Specifically, the bending angle of the bending section 321 that bends toward the first ignition needle 310 may be 90°. Of course, in addition to this, the bending angle of the bending section 321 that bends toward the first ignition needle 310 may also be set to 80°, 100° or other angles, which is not specifically limited in the present invention.

[0054] It is understandable that, referring to Figures 1 to 8 The ignition needle group 300 is arranged at an angle, and the horizontal height of the first ignition needle 310 is lower than the horizontal height of the second ignition needle 320, so that the tip of the first ignition needle 310 and the tip of the second ignition needle 320 are not in the same horizontal plane, that is, there is a distance between the two tips in the spatial structure, so that an ignition arc in space can be generated between the two tips, and the contact area between the ignition arc and the combustion object is increased, so that the gas at different distances has the opportunity to contact the ignition arc, and then the gas ejected from the gas outlet of the fire row 160 is more likely to contact the ignition arc and be ignited, thereby improving the success rate of ignition.

[0055] Reference Figures 1 to 8 In some embodiments, the ignition needle assembly 300 further includes a second mounting seat 330 , the second mounting seat 330 is mounted on the housing 100 , and the first ignition needle 310 and the second ignition needle 320 are both mounted on the second mounting seat 330 .

[0056] In the above structure, by setting a second mounting seat 330, the first ignition needle 310 and the second ignition needle 320 are both installed on the second mounting seat 330, thereby facilitating the installation of the ignition needle group 300, reducing the number of parts that need to be assembled during the production and processing of the burner assembly, saving the assembly process of the burner assembly, facilitating the assembly and processing of the burner assembly, and helping to improve the production efficiency of the burner assembly.

[0057] Reference Figures 1 to 8 In some embodiments, the sensing needle 200 has a first mounting seat 230 , which is mounted on the housing 100 , and the connecting portion 210 of the sensing needle 200 is mounted on the first mounting seat 230 . The setting of the first mounting seat 230 can facilitate the installation and assembly of the sensing needle 200 .

[0058] It is understandable that in some embodiments, the first mounting seat 230 and the second mounting seat 330 can also be connected together, or the first mounting seat 230 and the second mounting seat 330 can be directly set as an integrated structure, thereby further reducing the number of parts that need to be assembled during the production and processing of the burner assembly, saving the assembly process of the burner assembly, facilitating the assembly and processing of the burner assembly, and helping to improve the production efficiency of the burner assembly.

[0059] Reference Figures 1 to 12 In some embodiments, the ignition needle group 300 and the sensing needle 200 are both installed on a side wall of the shell 100. The shell 100 has a first connecting wall 121 located below the ignition needle group 300 and the sensing needle 200. The first connecting wall 121 has six ventilation holes 140 connected to the installation cavity 101.

[0060] In the above structure, by opening a ventilation hole 140 connected to the installation cavity 101 on the first connecting wall 121 below the ignition needle group 300 and the sensing needle 200, air circulation at the sensing needle 200 and the ignition needle group 300 can be facilitated, and oxygen can be supplemented near the sensing needle 200 and the ignition needle group 300 when there is a lack of oxygen, which can improve the flame separation phenomenon and the low flame height phenomenon caused by lack of oxygen, and thus reduce the risk of direct flame extinguishing of the burner assembly in an oxygen-deficient environment, which is convenient for users to use normally.

[0061] It is understandable that the number of the above-mentioned ventilation holes 140 is six, which is only for Figures 1 to 12 The number of the ventilation holes 140 on the first connecting wall 121 may be six, or may be one, two, three, four, five, seven or more, which is not specifically limited in the present invention, and only requires that at least one ventilation hole 140 be provided on the first connecting wall 121 .

[0062] Reference Figures 1 to 12 In some embodiments, the housing 100 includes a first plate 110, a second plate 120 and a third plate 130. The first plate 110 is U-shaped, the second plate 120 is connected to the U-shaped opening of the first plate 110, the third plate 130 is connected to the first plate 110 and is located below the first plate 110, the installation cavity 101 is formed by the first plate 110, the second plate 120, and the third plate 130, and the sensing needle 200 and the ignition needle group 300 are both installed on the second plate 120.

[0063] In the above structure, the housing 100 is divided into a first plate 110, a second plate 120 and a third plate 130, the first plate 110 is in a "U" shape, and is mutually enclosed with the second plate 120 and the third plate 130 to form an installation cavity 101, thereby facilitating the assembly of the burner assembly. Specifically, during assembly, the fire bar 160 can be first installed on the first plate 110, the induction needle 200 and the ignition needle group 300 can be installed on the second plate 120, and then the first plate 110, the second plate 120 and the third plate 130 can be assembled, thereby making the installation of the ignition needle group 300, the induction needle 200 and the fire bar 160 more convenient and simple.

[0064] It is understandable that the second plate 120 is connected to the U-shaped opening of the first plate 110, wherein the first plate 110 and the second plate 120 can be connected by screw fasteners or bolt fasteners. In addition, the first plate 110 and the second plate 120 can also be connected by a snap-fit ​​structure or other connection structures, which is not specifically limited by the present invention. Similarly, the third plate 130 is connected to the first plate 110 and is located below the first plate 110, wherein the third plate 130 and the first plate 110 can be connected by screw fasteners or bolt fasteners. In addition, the third plate 130 and the first plate 110 can also be connected by a snap-fit ​​structure or other connection structures, which is not specifically limited by the present invention.

[0065] Reference Figures 1 to 12 In some embodiments, the lower edge of the second plate 120 is bent toward the first plate 110 to form a first connecting wall 121, and the free end of the first connecting wall 121 is bent downward to form a second connecting wall 122. The second connecting wall 122 is provided with a connecting hole 150 connected to the air inlet of the fire bar 160, and an air supply device 170 for supplying air to the fire bar 160 is installed below the first connecting wall 121.

[0066] In the above structure, the first connecting wall 121 is formed by bending the lower edge of the second plate 120, which can facilitate the production and processing of the first connecting wall 121, and there is no need to assemble the second plate 120 and the first connecting wall 121, so the structure is simple and the processing is convenient. By opening the ventilation hole 140 in the first connecting wall 121, it is beneficial to replenish oxygen to the corresponding positions of the ignition needle group 300 and the sensing needle 200. By bending the free end of the first connecting wall 121 downward to form the second connecting wall 122, it is convenient to install the air supply device 170. During installation, align the air inlet of the fire bar 160 with the connecting hole 150 of the second connecting wall 122, and install the air supply device 170 between the first connecting wall 121 and the second connecting wall 122, so that air can be supplied to the fire bar 160, and the installation of the air supply device 170 is also more secure. In addition, since the second connecting wall 122 is formed by bending the first connecting wall 121, it is easy to produce and process the shell 100, reducing the number of parts that need to be installed and assembled. The structure is simple and easy to install, which is conducive to improving the processing efficiency of the burner assembly.

[0067] It is understandable that there are multiple connecting holes 150 on the second connecting wall 122, and the air supply device 170 includes nozzles corresponding to the connecting holes 150 one by one, and all the nozzles are facing the corresponding connecting holes 150, thereby being able to spray jets into the corresponding connecting holes 150, thereby delivering the gas to the fire grate 160.

[0068] An embodiment of the present invention further provides a gas water heater, which is provided with a burner assembly according to any of the above embodiments.

[0069] In the above structure, by setting the burner assembly of any of the above embodiments, the sensing needle 200 of the burner assembly has a sensing portion 220 extending downward close to the fire bar 160, so that the sensing portion 220 can sense the flame near the air outlet of the fire bar 160, and thus can sense the flame even when the flame height is low or the flame position is deviated. As a result, the sensing needle 200 can not only sense the flame when the gas is burning normally, but also can sense the flame when the flame height is low or the flame position is deviated in the absence of oxygen, thereby reducing the risk of the gas water heater being flamed out due to lack of oxygen, low flame height or flame separation, and facilitating normal use by users.

[0070] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A burner assembly, characterized in that: include: The housing (100) has an installation cavity (101), a fire bar (160) is installed in the installation cavity (101), and an air outlet is provided at the upper end of the fire bar (160); The sensing needle (200) is installed on the housing (100) and is located above the fire bar (160). The sensing needle (200) has a sensing portion (220) extending downward and close to the fire bar (160).

2. The burner assembly according to claim 1, characterized in that The sensing needle (200) has a connecting portion (210) connected to the upper end of the sensing portion (220), and the connecting portion (210) is mounted on the housing (100) and arranged horizontally; The angle between the central axis of the sensing portion (220) and the central axis of the connecting portion (210) is an obtuse angle.

3. The burner assembly according to claim 2, characterized in that It also includes an ignition needle group (300), which is installed on the housing (100) and located on one side of the sensing needle (200), and the horizontal distance between the upper end of the sensing part (220) and the ignition needle group (300) is greater than the horizontal distance between the lower end of the sensing part (220) and the ignition needle group (300).

4. The burner assembly according to claim 3, characterized in that The sensing portion (220) and the connecting portion (210) are an integrated structure, and the sensing portion (220) is formed by bending the connecting portion (210) toward the fire bar (160) and the ignition needle group (300).

5. The burner assembly according to claim 3, characterized in that The ignition needle assembly (300) comprises a first ignition needle (310) and a second ignition needle (320) mounted on the housing (100); the first ignition needle (310) is located between the sensing needle (200) and the second ignition needle (320); the second ignition needle (320) has a bent section (311) bent toward the first ignition needle (310).

6. The burner assembly according to claim 5, characterized in that The ignition needle assembly (300) further comprises a second mounting seat (330), wherein the second mounting seat (330) is mounted on the housing (100), and the first ignition needle (310) and the second ignition needle (320) are both mounted on the second mounting seat (330).

7. The burner assembly according to claim 3, characterized in that The ignition needle group (300) and the sensing needle (200) are both installed on a side wall of the housing (100); the housing (100) has a first connecting wall (121) located below the ignition needle group (300) and the sensing needle (200); the first connecting wall (121) is provided with at least one ventilation hole (140) connected to the installation cavity (101).

8. The burner assembly according to claim 7, characterized in that The housing (100) comprises a first plate (110), a second plate (120) and a third plate (130); the first plate (110) is U-shaped; the second plate (120) is connected to the U-shaped opening of the first plate (110); the third plate (130) is connected to the first plate (110) and is located below the first plate (110); the mounting cavity (101) is formed by the first plate (110), the second plate (120) and the third plate (130) being mutually enclosed; the sensing needle (200) and the ignition needle group (300) are both mounted on the second plate (120).

9. The burner assembly according to claim 8, characterized in that The lower edge of the second plate member (120) is bent toward the first plate member (110) to form the first connecting wall (121); the free end of the first connecting wall (121) is bent downward to form a second connecting wall (122); the second connecting wall (122) is provided with a connecting hole (150) connected to the air inlet of the fire bar (160); and an air supply device (170) for supplying air to the fire bar (160) is installed below the first connecting wall (121).

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

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