Combustion chamber assembly, assembly method of combustion chamber assembly and gas water heater

Abstract

The invention discloses a combustion chamber assembly, an assembling method of the combustion chamber assembly and a gas water heater, the combustion chamber assembly comprises a combustion chamber frame, the combustion chamber frame comprises a surrounding plate and a front cover plate, and the surrounding plate and the front cover plate are connected and define a containing cavity; the heat insulation part is arranged in the accommodating cavity; the surrounding plate is provided with a bent part facing the containing cavity, and the bent part is configured to be used for fixing the heat insulation piece to the inner wall face of the containing cavity. The combustion chamber assembly comprises a combustion chamber frame and a heat insulation part, the combustion chamber frame comprises a surrounding plate and a front cover plate, the surrounding plate and the front cover plate define a containing cavity, and the heat insulation part is arranged in the containing cavity and can reduce outward loss of heat generated by gas combustion; the bending part is formed on the side, facing the containing cavity, of the surrounding plate, the heat insulation piece is fixed to the surrounding plate through the bending part, the number of screws is reduced, a support does not need to be additionally arranged for installing the heat insulation piece, and the assembling efficiency can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas water heaters, and in particular relates to a combustion chamber assembly, an assembling method of the combustion chamber assembly, and a gas water heater. Background Art

[0002] Gas water heaters heat cold water in a heat exchanger by burning gas to produce hot water. The combustion chamber within the gas water heater's outer shell houses the burner, heat exchanger, fan, and other related components. To minimize heat loss from the combustion chamber, an insulation panel is typically installed inside the outer shell.

[0003] The existing Chinese patent with announcement number CN116892789A discloses a method for assembling a combustion chamber shell of a gas water heater, including: hanging a rear insulation plate on the inner side of the rear shell, and providing a first folding portion extending toward the inner side of the combustion chamber on the left and right sides of the rear insulation plate, and placing the rear shell and the rear insulation plate in a flat state; hanging the left insulation plate on the inner side of the left plate of the U-shaped shell, and hanging the right insulation plate on the inner side of the right plate of the U-shaped shell, placing one side of the U-shaped shell on the rear shell in a flat state and riveting it to the rear shell, and the first folding portion abuts against the left and right insulation plates; hanging the front insulation plate on the inner side of the front shell, and providing a second folding portion extending toward the inner side of the combustion chamber on the left and right sides of the front insulation plate, and placing the front shell on the other side of the U-shaped shell and fastening it with fasteners, and the second folding portion abuts against the left and right insulation plates.

[0004] The front insulation board, the rear insulation board, the left insulation board and the right insulation board all need to be fixed with fasteners, which affects the assembly efficiency. In view of this, how to design a technology that can improve the assembly efficiency of the gas water heater is the technical problem to be solved by the present invention. Summary of the Invention

[0005] The present invention provides a combustion chamber assembly, an assembling method of the combustion chamber assembly and a gas water heater, thereby improving the assembly efficiency of the gas water heater.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a combustion chamber assembly comprising: A combustion chamber frame, comprising a surrounding plate and a front cover plate, wherein the surrounding plate and the front cover plate are connected and enclosed to form an accommodating cavity; A heat insulating member is arranged in the accommodating cavity; a bending portion is formed on the side of the enclosure facing the accommodating cavity, and the bending portion is configured to fix the heat insulating member on the inner wall surface of the accommodating cavity.

[0007] In some embodiments of the present application, the bent portion is a flange formed by punching the enclosure plate.

[0008] By setting the bent portion as a flange formed by punching the enclosure, the bent portion and the enclosure are an integrated structure, which can reduce waste and secondary processing and help save costs.

[0009] In some embodiments of the present application, the enclosure includes a left side panel, a rear side panel, and a right side panel connected in sequence, and the bent portion includes: a first bending portion, which is provided at a position on the left plate and the right plate corresponding to a top end of the thermal insulation member; The second bending portion is provided on the left plate and the right plate at positions corresponding to the bottom end of the thermal insulation member; the first bending portion and the second bending portion are configured to limit the movement of the thermal insulation member in the vertical direction.

[0010] By setting the first bending portion and the second bending portion, the first bending portion and the second bending portion on the left side panel cooperate with each other to guide and limit the installation of the thermal insulation component on the left side panel; the first bending portion and the second bending portion on the right side panel cooperate with each other to guide and limit the installation of the thermal insulation component on the right side panel, which is beneficial to improving installation efficiency.

[0011] In some embodiments of the present application, the end of the first bending portion is bent downward to form a first folding piece, and / or the end of the second bending portion is bent upward to form a second folding piece, and the first folding piece and the second folding piece are both configured to prevent the thermal insulation component from moving away from the inner wall surface of the accommodating cavity.

[0012] By forming a first folding piece at the end of the first bending part and a second folding piece at the end of the second bending part, the first folding piece and the second folding piece are used to prevent the thermal insulation component from moving away from the inner wall surface of the accommodating cavity, thereby improving the installation stability of the thermal insulation component.

[0013] In some embodiments of the present application, the bending portion further includes: A third bending portion is provided on the rear side plate at a position corresponding to the bottom end of the heat insulating member and is configured to limit downward movement of the heat insulating member.

[0014] By arranging the third bent portion on the rear side panel, the third bent portion can provide better support for the thermal insulation component, thereby improving the stability of the installation of the thermal insulation component.

[0015] In some embodiments of the present application, a third folding piece is formed upward at the end of the third bent portion, and the third folding piece is configured to prevent the thermal insulation component from moving toward the accommodating cavity.

[0016] By forming a third folded piece at the end of the third bent portion, the third folded piece can prevent the thermal insulation component from moving toward the accommodating cavity, which is beneficial to improving the stability of the installation of the thermal insulation component.

[0017] In some embodiments of the present application, the thermal insulation component includes a front thermal insulation plate, a rear thermal insulation plate, a left thermal insulation plate and a right thermal insulation plate, and the front thermal insulation plate, the rear thermal insulation plate, the left thermal insulation plate and the right thermal insulation plate correspond to the front cover plate, the rear side plate, the left side plate and the right side plate respectively, and the front thermal insulation plate, the rear thermal insulation plate, the left thermal insulation plate and the right thermal insulation plate are detachably connected.

[0018] By detachably connecting the front heat insulation board, the rear heat insulation board, the left heat insulation board and the right heat insulation board, modular installation of the heat insulation components is facilitated.

[0019] In some embodiments of the present application, a slot portion is formed among the front heat insulation board and the left heat insulation board, the front heat insulation board and the right heat insulation board, the rear heat insulation board and the left heat insulation board, and one of the rear heat insulation board and the right heat insulation board, and a plug-in portion is formed therein, and the slot portion and the plug-in portion are configured to connect the front heat insulation board with the left heat insulation board and the right heat insulation board, and to connect the rear heat insulation board with the left heat insulation board and the right heat insulation board.

[0020] By connecting the front heat insulation board and the left heat insulation board, the front heat insulation board and the right heat insulation board, the rear heat insulation board and the left heat insulation board, and the rear heat insulation board and the right heat insulation board through the slot part and the plug-in part, no tools are needed, which is convenient, fast and has high plug-in efficiency. The front heat insulation board is fixed by plugging with the left heat insulation board and the right heat insulation board respectively. In this way, there is no need to set a corresponding structure on the front cover plate to fix the front heat insulation board, thereby ensuring the aesthetics of the front side.

[0021] In a second aspect, the present invention provides a method for assembling a combustion chamber assembly according to any one of the embodiments of the first aspect, comprising the following assembly steps: Place the rear heat insulation board into the accommodating cavity along the rear side board until the bottom of the rear heat insulation board abuts against the third bent portion; Insert the left heat insulation board along the left side board from the open end of the enclosure board to between the first bent portion and the second bent portion of the left side board, until the left heat insulation board and the rear heat insulation board are plugged into each other through the slot portion and the plug-in portion; Insert the right heat insulation board along the right side board from the open end of the enclosure board to between the first bent portion and the second bent portion of the right side board until the right heat insulation board and the rear heat insulation board are plugged into each other through the slot portion and the plug-in portion; Align the front heat insulation board with the left heat insulation board and the right heat insulation board, so that the front heat insulation board and the left heat insulation board, as well as the front heat insulation board and the right heat insulation board are plugged into each other through the slot portion and the plug-in portion; The front cover is fixedly connected to the left side plate and the right side plate respectively.

[0022] The installation of the rear heat insulation plate is completed by placing the rear heat insulation plate into the accommodating cavity along the rear side plate until the bottom of the rear heat insulation plate abuts against the third bend portion; then the left heat insulation plate is inserted along the left side plate between the first bend portion and the second bend portion of the left side plate, so that the left heat insulation plate and the rear heat insulation plate are plugged into each other through the slot portion and the plug-in portion, and the right heat insulation plate and the rear heat insulation plate are plugged into each other through the slot portion and the plug-in portion, and finally the front heat insulation plate and the left heat insulation plate and the right heat insulation plate are plugged into each other through the slot portion and the plug-in portion. In this way, the four heat insulation plates are plugged into each other, and the formed heat insulation component has high stability and good sealing performance. Finally, the front cover plate is installed to improve the overall sealing performance.

[0023] In a third aspect, the present invention provides a gas water heater comprising a combustion chamber assembly as described in any one of the embodiments of the first aspect above.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the combustion chamber assembly includes a combustion chamber frame and a thermal insulation member, the combustion chamber frame includes a surround and a front cover, the surround and the front cover together form a accommodating cavity, and the thermal insulation member is arranged in the accommodating cavity to reduce the heat generated by the combustion of the gas from being lost to the outside; a bent portion is formed on the surround facing the accommodating cavity side, and the thermal insulation member is fixed to the surround through the bent portion, which reduces the amount of screws used and does not require an additional bracket to install the thermal insulation member, which is beneficial to improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 One of the structural schematic diagrams of the combustion chamber assembly provided by the present invention; Figure 2 An exploded view of the combustion chamber assembly provided by the present invention; Figure 3 One of the structural schematic diagrams of the enclosure of the combustion chamber assembly provided by the present invention; Figure 4 The second structural schematic diagram of the combustion chamber assembly provided by the present invention; Figure 5 The third structural diagram of the enclosure of the combustion chamber assembly provided by the present invention; Figure 6 A schematic diagram of a portion of the internal structure of a combustion chamber assembly provided by the present invention; Figure 7 An exploded view of the thermal insulation element provided by the present invention; Figure 8 A schematic structural diagram of the burner frame provided by the present invention; Figure 9 Exploded view of the burner frame provided by the present invention.

[0027] Description of reference numerals: 1. Combustion chamber frame; 11. Enclosure; 111. First folding portion; 1111. Right end plate; 1112. Right vertical plate; 1113. Right support plate; 112. Left side plate; 113. Rear side plate; 114. Right side plate; 115. Second folding portion; 1151. Left end plate; 1152. Left vertical plate; 1153. Left support plate; 12. Front cover; 13. Bends; 131. First bend; 1311. First folding tab; 132. Second bend; 1321. Second folding tab; 133. Third bend; 1331. Third folding tab; 2. Heat insulation; 21. Front heat insulation board; 22. Rear heat insulation board; 23. Left heat insulation board; 24. Right heat insulation board; 25. Slot; 26. Connector; 3. Burner frame; 31. Burner front frame; 311. First side panel; 312. Primary air panel; 3121. Primary air inlet; 3122. Connecting plate; 313. Second side panel; 3131. First ear panel; 314. Positioning flange; 32. Burner rear frame; 321. Bottom panel; 3211. First folding edge; 3212. First and second air inlets; 3213. Bending plate; 322. Middle panel; 323. Upper end panel; 3231. Second and second air inlets; 324. First fire bar limiting slot; 325. Fixing plate; 3251. Folding edge; 3252. Second fire bar limiting slot. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] A gas water heater uses gas as its main energy source and transfers the high-temperature heat generated by gas combustion to cold water flowing through a heat exchanger to prepare hot water.

[0034] A gas water heater generally comprises a shell, and components such as a burner, a heat exchanger, a fan and a fan cover arranged in the shell.

[0035] The gas is transported to the burner and ignited by an ignition device, so that the burner burns the transported gas to generate heat.

[0036] A heat exchange tube is provided in the heat exchanger, one end of the heat exchange tube is connected to the water supply pipeline, and the other end of the heat exchange tube is connected to a shower or a faucet.

[0037] The heat generated by the burner burning gas is used to heat the heat exchange tubes, so that the water temperature in the heat exchange tubes is increased to form hot water.

[0038] When the gas water heater is working, cold water provided by the water supply pipe flows into the heat exchange tube, and is then heated into hot water by the heat source generated by the burner, and then flows out from the shower or faucet through the hot water valve for user use.

[0039] At the same time, when the gas water heater is working, the fan is powered on and runs at the same time. Under the action of the fan, the smoke generated by the burner is discharged to the outside.

[0040] In the first aspect, combined Figures 1 to 9 As shown, an embodiment of the present disclosure provides a combustion chamber assembly, which includes a combustion chamber frame 1, a heat insulation member 2, and a burner frame 3.

[0041] The combustion chamber frame 1 includes a surrounding plate 11 and a front cover plate 12. The surrounding plate 11 and the front cover plate 12 are connected and enclosed to form an accommodating cavity, which is used to place components such as the burner.

[0042] The heat insulating member 2 is arranged in the accommodating cavity and is located above the combustion chamber frame 1. The heat insulating member 2 has a heat-insulating effect and can reduce the loss of heat generated by the combustion of gas.

[0043] The heat insulating member 2 is made of heat-insulating material. For example, the heat insulating member 2 is made of aluminum silicate heat insulating wool board.

[0044] A bent portion 13 is formed on the side of the enclosure 11 facing the accommodating cavity. The bent portion 13 is configured to fix the thermal insulation component 2 on the inner wall surface of the accommodating cavity.

[0045] Specifically, the combustion chamber assembly includes a combustion chamber frame 1 and a heat insulating member 2. The combustion chamber frame 1 includes a surrounding plate 11 and a front cover plate 12. The surrounding plate 11 and the front cover plate 12 enclose a receiving cavity. The heat insulating member 2 is arranged in the receiving cavity to reduce the heat generated by the combustion of the gas from being lost to the outside. The surrounding plate 11 is formed with a bent portion 13 facing the receiving cavity side. The heat insulating member 2 is fixed to the surrounding plate 11 through the bent portion 13, which reduces the amount of screws used and does not require an additional bracket to install the heat insulating member 2, which is beneficial to improving assembly efficiency.

[0046] Exemplarily, the enclosure 11 is U-shaped. The enclosure 11 can be an integrated structure or a split structure.

[0047] In some embodiments of the present application, Figure 3 The bent portion 13 is a flange formed by punching a hole on the enclosure 11 .

[0048] Specifically, the bent portion 13 and the enclosure 11 are integrated, which can reduce waste and secondary processing, and is conducive to cost saving.

[0049] In other embodiments, the bent portion 13 bends toward the heat insulating member 2 , so that the bent portion 13 can prevent the corresponding heat insulating member 2 from moving in a direction away from the combustion chamber frame 1 in the horizontal direction, which is beneficial to improving assembly efficiency.

[0050] In some embodiments of the present application, Figure 3 、 Figure 4 and Figure 5 As shown, the enclosure 11 includes a left side plate 112 , a rear side plate 113 and a right side plate 114 connected in sequence, and the bending portion 13 includes a first bending portion 131 and a second bending portion 132 .

[0051] The first bending portion 131 is provided on the left plate 112 and the right plate 114 at a position corresponding to the top end of the thermal insulation member 2 .

[0052] The second bending portion 132 is provided on the left plate 112 and the right plate 114 at a position corresponding to the bottom end of the thermal insulation member 2 ; the first bending portion 131 and the second bending portion 132 are configured to limit the movement of the thermal insulation member 2 in the vertical direction.

[0053] Specifically, by setting the first bending portion 131 and the second bending portion 132, the first bending portion 131 and the second bending portion 132 on the left side plate 112 cooperate with each other to guide and limit the installation of the thermal insulation component 2 on the left side plate 112; the first bending portion 131 and the second bending portion 132 on the right side plate 114 cooperate with each other to guide the installation of the thermal insulation component 2 on the right side plate 114, which is conducive to improving the installation efficiency.

[0054] At the same time, the first bent portion 131 and the second bent portion 132 can prevent the heat insulation member 2 from shifting vertically relative to the combustion chamber frame 1 , that is, prevent it from moving upward or downward.

[0055] In other embodiments of the present application, in order to improve the structural strength of the left side panel 112, the rear side panel 113, the right side panel 114 and the front cover panel 12 and reduce the occurrence of deformation, the left side panel 112, the rear side panel 113, the right side panel 114 and the front cover panel 12 are all provided with protrusions facing outward.

[0056] In some embodiments of the present application, the end of the first bending portion 131 is bent downward to form a first folding piece 1311, and / or the end of the second bending portion 132 is bent upward to form a second folding piece 1321. The first folding piece 1311 and the second folding piece 1321 are both configured to prevent the thermal insulation component 2 from moving toward the direction away from the inner wall surface of the accommodating cavity.

[0057] Specifically, by forming a first folding piece 1311 at the end of the first bending portion 131 and a second folding piece 1321 at the end of the second bending portion 132, the first folding piece 1311 and the second folding piece 1321 are used to prevent the thermal insulation component 2 from moving away from the inner wall surface of the accommodating cavity, thereby improving the installation stability of the thermal insulation component 2.

[0058] Combine Figure 6 As shown, the first folding piece 1311 and the second folding piece 1321 on the left side panel 112 can prevent the left heat insulation board 23 from moving away from the left side panel 112; the first folding piece 1311 and the second folding piece 1321 on the right side panel 114 can prevent the right heat insulation board 24 from moving away from the right side panel 114.

[0059] In some embodiments of the present application, the bending portion 13 further includes a third bending portion 133 .

[0060] The third bending portion 133 is provided on the rear side plate 113 at a position corresponding to the bottom end of the heat insulating member 2 , and is configured to limit the downward movement of the heat insulating member 2 .

[0061] Specifically, by providing the third bending portion 133 on the rear side plate 113 , the third bending portion 133 can provide better support for the thermal insulation member 2 , thereby improving the stability of the installation of the thermal insulation member 2 .

[0062] At the same time, the third bent portion 133 can cooperate with the first bent portion 131 and the second bent portion 132 to support the thermal insulation component 2 as a whole, thereby sharing part of the weight of the thermal insulation component 2.

[0063] In some embodiments of the present application, a third folding piece 1331 is formed upward at the end of the third bent portion 133 , and the third folding piece 1331 is configured to prevent the thermal insulation component 2 from moving toward the accommodating cavity.

[0064] Specifically, by forming a third folded piece 1331 at the end of the third bent portion 133 , the third folded piece 1331 can prevent the thermal insulation component 2 from moving toward the accommodating cavity, which is beneficial to improving the installation stability of the thermal insulation component 2 .

[0065] Specifically, the third folding piece 1331 can prevent the rear heat insulation board 22 from moving in a direction away from the rear side panel 113 .

[0066] In some embodiments of the present application, the thermal insulation member 2 includes a front thermal insulation plate 21, a rear thermal insulation plate 22, a left thermal insulation plate 23 and a right thermal insulation plate 24. The front thermal insulation plate 21, the rear thermal insulation plate 22, the left thermal insulation plate 23 and the right thermal insulation plate 24 correspond to the front cover plate 12, the rear side plate 113, the left side plate 112 and the right side plate 114 respectively. The front thermal insulation plate 21, the rear thermal insulation plate 22, the left thermal insulation plate 23 and the right thermal insulation plate 24 are detachably connected.

[0067] Specifically, by detachably connecting the front heat insulation board 21 , the rear heat insulation board 22 , the left heat insulation board 23 and the right heat insulation board 24 , modular installation of the heat insulation component 2 is facilitated.

[0068] In some embodiments of the present application, Figure 7 One of the front heat insulation board 21 and the left heat insulation board 23, the front heat insulation board 21 and the right heat insulation board 24, the rear heat insulation board 22 and the left heat insulation board 23, and the rear heat insulation board 22 and the right heat insulation board 24 is formed with a slot portion 25, and the other is formed with a plug-in portion 26. The slot portion 25 and the plug-in portion 26 are configured to connect the front heat insulation board 21 to one end of the left heat insulation board 23 and the right heat insulation board 24, and to connect the rear heat insulation board 22 to the other end of the left heat insulation board 23 and the right heat insulation board 24.

[0069] Specifically, by setting the thermal insulation member 2 as a split structure, the thermal insulation member 2 includes a front thermal insulation board 21, a rear thermal insulation board 22, a left thermal insulation board 23 and a right thermal insulation board 24. Both sides of the front thermal insulation board 21, the rear thermal insulation board 22, the left thermal insulation board 23 and the right thermal insulation board 24 are respectively formed with slot portions 25 and / or plug-in portions 26, which are convenient for plugging and embedding each other, positioning between adjacent ones, and assembly more tightly, which is beneficial to improving the stability of the overall structure of the thermal insulation member 2.

[0070] It should be noted that, with the support of the left heat insulation board 23 and the right heat insulation board 24, the two sides of the front heat insulation board 21 can ensure the position of the front heat insulation board 21 even if the front cover plate 12 is not provided with openings and flanges. Therefore, the front cover plate 12 does not need to be opened, which can ensure the aesthetics of the front face, reduce the processing steps, and help reduce costs.

[0071] In some embodiments of the present application, the burner frame 3 is disposed at the bottom of the combustion chamber frame 1 and below the thermal insulation 2. The burner frame 3 includes a burner front frame 31 and a burner rear frame 32 connected to each other. The burner front frame 31 and the burner rear frame 32 are combined to support and fix the burner fire bar assembly.

[0072] Folding portions are formed on both sides of the bottom of the enclosure 11 toward the burner frame 3 , and the folding portions are configured to support the burner frame 3 ; the folding portions include a first folding portion 111 and a second folding portion 115 .

[0073] The first folded portion 111 faces the burner front frame 31 , and the second folded portion 115 faces the burner rear frame 32 . The first folded portion 111 and the second folded portion 115 are configured to support the burner frame 3 .

[0074] Specifically, the combustion chamber assembly includes a combustion chamber frame 1 and a burner frame 3. The combustion chamber frame 1 includes a surrounding plate 11 and a front cover plate 12. The surrounding plate 11 and the front cover plate 12 enclose a accommodating cavity. The bottom of the surrounding plate 11 is folded toward the burner front frame 31 to form a first folding portion 111, and the bottom of the surrounding plate 11 is folded toward the burner rear frame 32 to form a second folding portion 115. The first folding portion 111 and the second folding portion 115 are configured to support the burner frame 3 to achieve auxiliary fixation of the burner frame 3, which helps to improve assembly efficiency and reduce the number of screws used. The burner frame 3 has only two parts, the burner front frame 31 and the burner rear frame 32. The structure is simple and easy to manufacture, which is conducive to reducing production costs.

[0075] In some embodiments of the present application, the first folding portion 111 and the second folding portion 115 are both Z-shaped structures, and the bottom of the first folding portion 111 is tilted upward.

[0076] Specifically, by tilting the bottom of the first folded portion 111 upward, when the burner front frame 31 is overlapped on the top of the first folded portion 111, the first folded portion 111 can be tightly fitted with the burner front frame 31 to improve the sealing effect.

[0077] In some embodiments of the present application, Figure 8 and Figure 9 As shown, the burner front frame 31 has a U-shaped structure, including a first side plate 311, a primary air plate 312 and a second side plate 313 connected in sequence. The opening of the burner front frame 31 faces the middle plate 322. In actual use, one end of the primary air plate 312 is connected to the first side plate 311, and the other end of the primary air plate 312 is connected to the second side plate 313. The first side plate 311 is fixedly connected to the front cover plate 12, and the second side plate 313 is fixedly connected to the enclosure 11, that is, the second side plate 313 is fixedly connected to the rear side plate 113. A primary air inlet 3121 is formed on the primary air plate 312, and a limited flange is formed on the edge of the primary air inlet 3121 along the circumferential direction toward the accommodating cavity side, and the limited flange is configured as a bell mouth for fixing the fire bar assembly.

[0078] Specifically, by making the burner front frame 31 into a U-shaped structure, the first side panel 311 is fixedly connected to the front cover plate 12, and the second side panel 313 is fixedly connected to the enclosure plate 11, a primary air inlet 3121 is formed on the primary air plate 312. In actual use, primary air enters from the primary air inlet 3121, and a limiting flange is formed on the edge of the primary air inlet 3121 toward the side of the accommodating cavity. The limiting flange is used to fix the bell mouth of the fire bar assembly, which can improve the stability of the fire bar assembly, has a simple structure, and is easy to install.

[0079] In some embodiments of the present application, the first side plate 311 and the second side plate 313 are both formed with positioning flanges 314 at the ends away from the primary air plate 312. The two positioning flanges 314 are arranged opposite to each other and are configured to be connected to the burner rear frame 32.

[0080] Specifically, the two positioning flanges 314 can be fixedly connected to the middle plate 322 of the burner rear frame 32 by fasteners or welding.

[0081] Specifically, a positioning flange 314 is formed at the end of the first side plate 311 and the second side plate 313 away from the primary air plate 312. The positioning flange 314 is used to connect to the burner rear frame 32. On the one hand, it can improve the stability of the connection between the burner front frame 31 and the burner rear frame 32, and on the other hand, it can improve the sealing effect of the connection between the burner front frame 31 and the burner rear frame 32.

[0082] Specifically, a positioning flange 314 is formed at the end of the burner front frame 31 toward the middle plate 322, and the positioning flange 314 connects the burner front frame 31 and the middle plate 322 to form an integrated structure, thereby improving the structural stability of the burner frame 3 and facilitating subsequent assembly.

[0083] Specifically, both the middle plate 322 and the upper end plate 323 are provided with fire bar limiting grooves.

[0084] In some embodiments, a fixing portion is formed on the upper end plate 323 near the left side plate 112. The fixing portion is L-shaped and has a notch formed on the edge of the fixing portion. The notch is arranged toward the direction of the burner fire grate to assist in fixing the fire grate.

[0085] In some embodiments of the present application, in order to improve the sealing performance, both the front and rear ends of the middle plate 322 are bent upward to form edges, and the edges are in contact with the front cover plate 12 and the rear side plate 113 .

[0086] In some embodiments of the present application, the combustor front frame 31 further includes a first ear plate 3131 .

[0087] The first ear plate 3131 is connected to the junction of the primary air plate 312 and the second side plate 313, and extends in a direction away from the second side plate 313. The first ear plate 3131 is configured to be fixedly connected to the rear side plate 113 of the enclosure 11. The first ear plate 3131 is a flange formed by punching the second side plate 313.

[0088] Specifically, by setting the first ear plate 3131, the first ear plate 3131 extends in the direction away from the second side plate 313, and the first ear plate 3131 is used to be fixedly connected to the rear side plate 113, thereby improving the stability of the connection between the burner front frame 31 and the enclosure 11, reducing the shaking of the burner front frame 31, having a good anti-vibration effect, and helping to reduce noise; the first ear plate 3131 is formed by the flange formed by punching the second side plate 313, which is conducive to reducing waste generation and secondary processing, and is conducive to saving costs; the first ear plate 3131 transmits load through a pin or bolt to avoid complex stress concentration.

[0089] The second side plate 313 has a hole punched in the position corresponding to the first ear plate 3131 . Since the second side plate 313 is in contact with the rear side plate 113 , the hole is blocked by the second side plate 313 , thereby improving the sealing performance.

[0090] In some embodiments of the present application, the burner rear frame 32 has a stepped structure, including a bottom plate 321, an intermediate plate 322 and an upper end plate 323 connected in sequence, the upper end plate 323 is located above the bottom plate 321, the bottom plate 321 has a rectangular plate structure, and the front and rear ends of the bottom plate 321 are bent upward to form a first folded edge 3211; the burner front frame 31 is arranged on the bottom plate 321 and is located between the two first folded edges 3211.

[0091] Specifically, by setting the burner rear frame 32 to have a stepped structure, including a bottom plate 321, an intermediate plate 322 and an upper end plate 323 connected in sequence, the front and rear ends of the bottom plate 321 are bent upward to form a first folded edge 3211, and the burner front frame 31 is set on the bottom plate 321 and is located between the two first folded edges 3211. On the one hand, the first folded edge 3211 limits the burner front frame 31. On the other hand, the first folded edge 3211 makes the burner front frame 31 and the burner rear frame 32 more tightly combined, which is beneficial to improving the sealing effect of the burner frame 3.

[0092] Specifically, the bottom plate 321 and the upper end plate 323 are both in a horizontal direction, and the middle plate 322 is in a vertical direction.

[0093] In some embodiments of the present application, first and second air inlets 3212 are formed on the bottom plate 321 .

[0094] Specifically, by forming the first secondary air inlet 3212 on the bottom plate 321 , secondary air can enter the accommodating cavity through the first secondary air inlet 3212 , thereby providing sufficient air for the accommodating cavity.

[0095] In some embodiments of the present application, a first fire bar limiting groove is formed at the connection between the upper end plate 323 and the middle plate 322, and the first fire bar limiting groove is configured to be connected with the fire bar assembly; the upper end plate 323 is also formed with a second secondary air inlet 3231, and the second secondary air inlet 3231 is arranged alternately with the first fire bar limiting groove.

[0096] Specifically, a first fire bar limiting groove is formed at the connection between the upper end plate 323 and the middle plate 322 to facilitate the fixation of the fire bar assembly. A second secondary air inlet 3231 is formed on the upper end plate 323. Secondary air can enter the accommodating cavity through the second secondary air inlet 3231 to replenish air in the accommodating cavity. The second secondary air inlet 3231 and the first fire bar limiting groove are alternately arranged to improve the uniformity of the replenished air.

[0097] Specifically, the second and secondary air inlets 3231 are in the shape of an elongated strip or a circular structure.

[0098] In some embodiments of the present application, the first folding portion 111 includes a right end plate 1111, a right vertical plate 1112 and a right support plate 1113 connected in sequence, and the right end plate 1111 is located above the right support plate 1113; the second folding portion 115 includes a left end plate 1151, a left vertical plate 1152 and a left support plate 1153 connected in sequence, and the left end plate 1151 is located above the left support plate 1153; wherein, the left end plate 1151, the left support plate 1153, the right end plate 1111 and the right support plate 1113 are in a horizontal direction, and the left vertical plate 1152 and the right vertical plate 1112 are in a vertical direction.

[0099] In this way, a left insulation plate 23 is correspondingly provided above the left end plate 1151, and a right insulation plate 24 is correspondingly provided above the right end plate 1111, so that the internal space can be fully utilized; at the same time, it is convenient to install the burner frame 3. When the fire bar assembly is installed on the burner frame 3, there is a certain distance between the flame generated by the combustion of gas and the left and right insulation plates 24. The burner will generate high temperature during the combustion process. If the flame directly contacts the insulation cotton, it may cause the insulation cotton to catch fire, thereby causing a fire. Setting a certain distance can also effectively reduce the heat transfer to the insulation cotton and ensure safety.

[0100] In some embodiments of the present application, the combustor rear frame 32 further includes a fixing plate.

[0101] The fixed plate is fixedly connected to the inner wall surface of the left vertical plate 1152, and the top end of the fixed plate is bent toward the direction of the burner front frame 31 to form a folded edge portion, and a second fire bar limiting groove is formed on the folded edge portion, and the position of the second fire bar limiting groove corresponds one to one to the position of the first fire bar limiting groove.

[0102] Specifically, during installation, the upper end plate 323 is overlapped on top of the left support plate 1153, and the left vertical plate 1152 is in contact with the fixed plate.

[0103] Specifically, by setting a fixing plate, the sealing connection effect between the burner rear frame 32 and the enclosure 11 can be improved. By setting a folded edge portion at the top of the fixing plate and setting a second fire bar limiting groove on the folded edge portion, the fire bar assembly can be easily fixed.

[0104] In some embodiments of the present application, a connecting plate 3122 is formed on the upper end of the primary air plate 312 on the side facing the first folding portion 111 , and the connecting plate 3122 is overlapped above the right supporting plate 1113 .

[0105] Specifically, the burner front frame 31 can be effectively integrated with the primary air plate 312 by stamping, without the need for an additional primary air plate 312 structure, and the structure is simple and convenient for processing and manufacturing; the burner rear frame 32 can be effectively integrated with the secondary air plate by stamping, without the need for an additional secondary air plate structure, and at the same time, the burner rear frame 32 can open corresponding slots to limit the fire bar assembly.

[0106] Specifically, the burner front frame 31 is connected to the front cover plate 12 by bolts.

[0107] In order to improve the close fit between the connecting plate 3122 and the right support plate 1113, the right support plate 1113 has an upwardly convex arc structure along the width direction. In this way, after the connecting plate 3122 and the right support plate 1113 are installed together, the arc structure undergoes elastic deformation, so that the first folded portion 111 is tightly fitted with the burner front frame 31, thereby improving the sealing effect.

[0108] In some embodiments of the present application, the middle plate 322 is formed with a second ear plate at the end facing the rear side plate 113, and the second ear plate extends in a direction away from the second side plate 313. The second ear plate is configured to be fixedly connected to the rear side plate 113, thereby improving the stability of the connection between the burner frame 3 and the enclosure 11.

[0109] In order to improve the stability of the connection between the burner front frame 31 and the burner rear frame 32 , the bottom plate 321 is bent upward toward the end of the primary air plate 312 to form a bent plate 3213 , which is configured to be fixedly connected to the primary air plate 312 .

[0110] In a second aspect, an embodiment of the present disclosure provides a method for assembling a combustion chamber assembly according to any one of the embodiments of the first aspect, comprising the following assembly steps: S1, place the rear heat insulation board 22 into the accommodating cavity along the rear side board 113 until the bottom of the rear heat insulation board 22 abuts against the third bent portion 133; S2: Insert the left heat insulation board 23 along the left side panel 112 from the open end of the panel 11 to between the first bend 131 and the second bend 132 of the left side panel 112 until the left heat insulation board 23 and the rear heat insulation board 22 are connected through the slot portion 25 and the plug portion 26; S3, insert the right heat insulation board 24 along the right side panel 114 from the open end of the enclosure panel 11 to between the first bend portion 131 and the second bend portion 132 of the right side panel 114, until the right heat insulation board 24 and the rear heat insulation board 22 are connected through the slot portion 25 and the plug portion 26; S4, align the front heat insulation board 21 with the left heat insulation board 23 and the right heat insulation board 24, so that the front heat insulation board 21 and the left heat insulation board 23, as well as the front heat insulation board 21 and the right heat insulation board 24 are plugged together through the slot portion 25 and the plug portion 26; S5, fixing the front cover 12 to the left side plate 112 and the right side plate 114 respectively.

[0111] Specifically, the rear heat insulation board 22 is placed into the accommodating cavity along the rear side panel 113 until the bottom of the rear heat insulation board 22 abuts against the third bent portion 133, thus completing the installation of the rear heat insulation board 22; then the left heat insulation board 23 is inserted along the left side panel 112 between the first bent portion 131 and the second bent portion 132 of the left side panel 112, so that the left heat insulation board 23 and the rear heat insulation board 22 are plugged into each other through the slot portion 25 and the plug-in portion 26, and the right heat insulation board 24 and the rear heat insulation board 22 are plugged into each other through the slot portion 25 and the plug-in portion 26, and finally the front heat insulation board 21 and the left heat insulation board 23 and the right heat insulation board 24 are plugged into each other through the slot portion 25 and the plug-in portion 26. In this way, the four heat insulation boards are plugged into each other, and the formed heat insulation component 2 has high stability and good sealing. Finally, the front cover plate 12 is installed to improve the overall sealing.

[0112] Specifically, the installation order of the left heat insulation board 23 and the right heat insulation board 24 can be interchanged.

[0113] In some embodiments of the present application, before installing the front heat shield 21, the assembly step further includes: The burner rear frame 32 and the burner front frame 31 are fixedly connected to form a burner frame 3; Specifically, the burner front frame 31 is placed on the burner rear frame 32, so that the first side plate 311 and the second side plate 313 are located between the two first folded edges 3211, and the two positioning flanges 314 are fixedly connected to the middle plate 322, and the bent plate 3213 is fixedly connected to the primary air plate 312; Overlap the burner frame 3 on the enclosure 11; Specifically, the upper end plate 323 is overlapped on the left support plate 1153, and the connecting plate 3122 is overlapped on the right support plate 1113; the burner frame 3 is slid from the open end of the enclosure 11 from front to back until the second side plate 313 abuts against the rear side plate 113, and the first ear plate 3131 and the second ear plate are fixedly connected to the rear side plate 113 respectively.

[0114] Exemplarily, the fixing process of the front cover plate 12 is as follows: the left side plate 112 and the right side plate 114 are both formed with a third folded edge facing away from the accommodating cavity near the side of the front cover plate 12, and a connecting portion corresponding to the third folded edge is formed at the corresponding position on the front cover plate 12. The third folded edge and the connecting portion are connected by bolts, thereby realizing the connection between the front cover plate 12 and the enclosure 11; in order to improve the structural stability, the bottom of the front cover plate 12 is fixedly connected to the side plate of the burner front frame 31 by bolts.

[0115] In a third aspect, an embodiment of the present disclosure provides a gas water heater, which includes a combustion chamber assembly as described in any one of the embodiments of the first aspect, and thus has all its beneficial effects, which will not be described in detail here.

[0116] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0117] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A combustion chamber assembly, characterized in that: include: A combustion chamber frame, comprising a surrounding plate and a front cover plate, wherein the surrounding plate and the front cover plate are connected and enclosed to form an accommodating cavity; A heat insulating member is arranged in the accommodating cavity; the enclosure is formed with a bent portion toward the accommodating cavity, and the bent portion is configured to fix the heat insulating member on the inner wall surface of the accommodating cavity.

2. The combustion chamber assembly according to claim 1, characterized in that The bent portion is a flange formed by punching the enclosure plate.

3. The combustion chamber assembly according to claim 1, characterized in that The enclosure comprises a left side panel, a rear side panel and a right side panel connected in sequence, and the bent portion comprises: a first bending portion, which is provided at a position on the left plate and the right plate corresponding to a top end of the thermal insulation member; The second bending portion is provided on the left plate and the right plate at positions corresponding to the bottom end of the thermal insulation member; the first bending portion and the second bending portion are configured to limit the movement of the thermal insulation member in the vertical direction.

4. The combustion chamber assembly according to claim 3, characterized in that The end of the first bending portion is bent downward to form a first folding piece, and / or the end of the second bending portion is bent upward to form a second folding piece, and the first folding piece and the second folding piece are both configured to prevent the thermal insulation component from moving away from the inner wall surface of the accommodating cavity.

5. The combustion chamber assembly according to claim 3, characterized in that The bending portion further includes: A third bending portion is provided on the rear side plate at a position corresponding to the bottom end of the heat insulating member and is configured to limit downward movement of the heat insulating member.

6. The combustion chamber assembly according to claim 5, characterized in that A third folding piece is formed upward at the end of the third bent portion, and the third folding piece is configured to prevent the thermal insulation component from moving toward the accommodating cavity.

7. The combustion chamber assembly according to claim 3, characterized in that The heat insulation component includes a front heat insulation plate, a rear heat insulation plate, a left heat insulation plate and a right heat insulation plate, and the front heat insulation plate, the rear heat insulation plate, the left heat insulation plate and the right heat insulation plate correspond to the front cover plate, the rear side plate, the left side plate and the right side plate respectively, and the front heat insulation plate, the rear heat insulation plate, the left heat insulation plate and the right heat insulation plate are detachably connected.

8. The combustion chamber assembly according to claim 7, characterized in that The front heat insulation board and the left heat insulation board, the front heat insulation board and the right heat insulation board, the rear heat insulation board and the left heat insulation board, and one of the rear heat insulation board and the right heat insulation board is formed with a slot portion, and the other is formed with a plug-in portion, and the slot portion and the plug-in portion are configured to connect the front heat insulation board with the left heat insulation board and the right heat insulation board, and to connect the rear heat insulation board with the left heat insulation board and the right heat insulation board.

9. A method for assembling a combustion chamber assembly according to any one of claims 1 to 8, characterized in that: The assembly steps include: Place the rear heat insulation board into the accommodating cavity along the rear side board until the bottom of the rear heat insulation board abuts against the third bent portion; Insert the left heat insulation board along the left side board from the open end of the enclosure board to between the first bent portion and the second bent portion of the left side board, until the left heat insulation board and the rear heat insulation board are plugged into each other through the slot portion and the plug-in portion; Insert the right heat insulation board along the right side board from the open end of the enclosure board to between the first bent portion and the second bent portion of the right side board until the right heat insulation board and the rear heat insulation board are plugged into each other through the slot portion and the plug-in portion; Align the front heat insulation board with the left heat insulation board and the right heat insulation board, so that the front heat insulation board and the left heat insulation board, as well as the front heat insulation board and the right heat insulation board are plugged into each other through the slot portion and the plug-in portion; The front cover is fixedly connected to the left side plate and the right side plate respectively.

10. A gas water heater, characterized in that: Comprising a combustion chamber assembly as claimed in any one of claims 1 to 8 above.

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