Fan mounting structure and gas equipment

Abstract

The utility model discloses a draught fan installation structure and gas equipment, and relates to the technical field of draught fan installation, the draught fan installation structure is used for the gas equipment, the gas equipment is provided with a combustion cavity, and the draught fan installation structure comprises a draught fan base body provided with an air outlet; the fan connector piece is fixed to the fan base body and arranged on the periphery of the air outlet in a surrounding mode; the fan fixing piece is used for being fixed to the combustion cavity, the fan fixing piece comprises a fixing frame arranged on the periphery of an air inlet of the combustion cavity in a surrounding mode and a lifting part arranged on the bottom side of the fixing frame, and the lifting part is bent towards the side, away from the combustion cavity, of the fixing frame relative to the fixing frame; the fan connector piece is connected with the fan fixing piece, and the lifting part is used for supporting the bottom of the fan connector piece. According to the technical scheme provided by the utility model, the installation reliability between the fan and the combustion cavity can be improved, the gas leakage risk is reduced, and the use safety of gas equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan installation, in particular to a fan installation structure and gas equipment. Background Art

[0002] Gas appliances such as wall-mounted boilers or water heaters require air (oxygen) and combustible gas to participate in combustion. The air (oxygen) is blown into the combustion chamber by the fan component. In related technologies, after the fan component is installed in the combustion chamber through the fan fixing plate, the fan component will fall down due to the vibration of the entire machine and the fan component's own gravity. At this time, a gap will be generated between the fan component and the fan fixing plate, causing air leakage. A gap will also be generated between the fan fixing plate and the combustion chamber, causing air leakage. This is not conducive to the effective control of the air-fuel ratio during combustion of the gas equipment, resulting in the gas equipment not being able to burn normally, and will produce carbon monoxide and other gases that are harmful to the human body, affecting the safe use of the machine.

[0003] The above content is only used to assist in understanding the technical solution of the utility model and does not constitute an admission that the above content is prior art. Utility Model Content

[0004] The main purpose of the utility model is to propose a fan installation structure and a gas device, aiming to improve the installation reliability between the fan and the combustion chamber, reduce the risk of gas leakage, and improve the safety of gas equipment.

[0005] To achieve the above-mentioned purpose, the utility model proposes a fan installation structure for a gas device having a combustion chamber. The fan installation structure includes:

[0006] A fan base having an air outlet;

[0007] A fan interface component is fixed to the fan base and is arranged around the periphery of the air outlet; and

[0008] The fan fixing part is used to be fixed to the combustion chamber, and the fan fixing part includes a fixing frame arranged around the periphery of the air inlet of the combustion chamber, and a lifting part arranged on the bottom side of the fixing frame, and the lifting part is bent relative to the fixing frame toward the side away from the combustion chamber. The fan interface part is connected to the fan fixing part, and the lifting part is used to support the bottom of the fan interface part.

[0009] In one embodiment, the fan interface part includes an interface frame arranged opposite to the fixed frame, and a folding portion arranged on the bottom side of the interface frame and bent relative to the interface frame. The interface frame is arranged around the periphery of the air outlet, and the bottom surface of the folding portion abuts against the supporting portion.

[0010] In one embodiment, the fan fixing member also includes a first limiting portion provided on the side of the lifting portion away from the fixing frame, the first limiting portion is bent upward relative to the lifting portion, and the folding portion is bent relative to the interface frame toward the side away from the fixing frame and abuts against the first limiting portion.

[0011] In one embodiment, the fan fixing member also includes two second limiting portions arranged on opposite sides of the lifting portion, the second limiting portions are located between the first limiting portion and the interface frame, each second limiting portion is bent upward relative to the lifting portion, and the folding portion is located between the two second limiting portions.

[0012] In one embodiment, the fan fixing member also includes a fixing portion provided on the top side of the fixing frame, and the fixing portion is bent relative to the fixing frame toward a side away from the combustion chamber. The fan interface member also includes a hanging portion provided on the top side of the interface frame, and the hanging portion is hung on the fixing portion.

[0013] In one embodiment, the hanging portion includes a first bending section, a second bending section and a third bending section that are bent and connected. The first bending section is arranged on the top side of the interface frame and extends toward a side away from the fixed frame. The second bending section is arranged on a side of the first bending section away from the fixed frame and extends upward. The third bending section is arranged on the top side of the second bending section and extends toward a side close to the fixed frame. The first bending section, the second bending section and the third bending section are arranged to form a groove for inserting the fixed portion, and the third bending section is hung on the top surface of the fixed portion.

[0014] In one embodiment, the third bending section is detachably connected and fixed to the fixing portion.

[0015] In one embodiment, the third bent section is provided with a first fixing hole for a first fastener to pass through, the fixing portion is provided with a second fixing hole corresponding to the first fixing hole, and the first fastener is passed through the first fixing hole and the second fixing hole to lock and fix the third bent section to the fixing portion;

[0016] And / or, the fan fixing part also includes a first limiting portion provided on the side of the lifting portion away from the fixing frame, the first limiting portion is bent upward relative to the lifting portion, and the folding portion is bent relative to the interface frame toward the side away from the fixing frame and abuts against the first limiting portion; the distance between the bottom surface of the fixing portion and the top surface of the first bending section is D1, and the distance between the top surface of the first limiting portion and the top surface of the folding portion is D2, wherein D1 is greater than D2.

[0017] In one embodiment, the interface frame has a fan interface connected to the air outlet, and the periphery of the fan interface is provided with multiple folded edges, each of the folded edges is bent toward the side away from the fixed frame relative to the interface frame, and at least the folded edge located on the top side of the fan interface is locked and fixed to the fan base by a second fastener, and the hanging portion is provided with an air avoidance groove for the second fastener to pass through.

[0018] In one embodiment, at least a portion of the bent portion of the fan interface component is provided with a first reinforcing rib; and / or, the fixing frame is provided with a second reinforcing rib.

[0019] In one embodiment, the fan mounting structure also includes a sealing gasket provided on the side of the fan interface part facing the combustion chamber, the fixed frame has a connecting port connected to the air inlet, the area of ​​the connecting port is larger than the area of ​​the air inlet, and the sealing gasket is filled in the area between the outer periphery of the air inlet and the inner periphery of the fixed frame, and the sealing gasket is used to seal the fan interface part and the combustion chamber.

[0020] The utility model also provides a gas device, comprising:

[0021] a combustion chamber having an air inlet;

[0022] And the fan mounting structure as described above, the fan mounting structure is mounted on the combustion chamber.

[0023] The technical solution of the present invention is to connect the fan interface part with the fan base to form a fan, and connect the fan fixing part with the combustion chamber to form a combustion chamber assembly. The fan fixing part includes a fixing frame arranged around the periphery of the air inlet of the combustion chamber, and a lifting part arranged on the bottom side of the fixing frame. The fan interface part is connected and fixed to the fan fixing part to assemble the fan in the combustion chamber. The connecting port formed by the fixing frame can connect the air outlet of the fan with the air inlet of the combustion chamber, and the lifting part can apply an upward supporting force to the fan interface part to support the fan as a whole. Since the lifting part can provide upward support for the fan, the assembly of the fan and the combustion chamber is more stable and reliable, and the fan is prevented from falling down due to the vibration of the whole machine and its own gravity, thereby avoiding the formation of gaps between the fan interface parts and the fan fixing parts to cause air leakage, and also avoiding the formation of gaps between the fan fixing parts and the combustion chamber to cause air leakage, which can effectively reduce the risk of air leakage and ensure the air tightness of the combustion chamber, thereby being more conducive to the effective control of the air-fuel ratio during combustion of the gas equipment, so as to ensure that the gas equipment can burn normally, reduce the production of harmful gases such as carbon monoxide, and improve the safety of the gas equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the assembly of the fan mounting structure and the combustion chamber in the related art;

[0026] Figure 2 for Figure 1 A top view of

[0027] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along line X1-X1;

[0028] Figure 4 A schematic diagram of the installation steps of the fan installation structure and the combustion chamber in the related art;

[0029] Figure 5 This is a schematic diagram of an assembly of a fan mounting structure and a combustion chamber according to an embodiment of the present invention;

[0030] Figure 6 for Figure 5 A top view of

[0031] Figure 7 for Figure 6 Schematic diagram of the cross-section structure along line XX;

[0032] Figure 8 for Figure 7 A partial enlarged view of point A in the middle;

[0033] Figure 9 An exploded view of an embodiment of a fan installation structure provided by the present invention;

[0034] Figure 10 for Figure 9 Schematic diagram of the structure of the blower interface parts;

[0035] Figure 11 for Figure 10 The main view of the stroke machine interface parts;

[0036] Figure 12 for Figure 11 Schematic diagram of the cross-sectional structure of the blower interface along line YY;

[0037] Figure 13 for Figure 9 Schematic diagram of the structure of the fixed parts of the blower;

[0038] Figure 14 A schematic diagram of the installation steps of the fan installation structure and the combustion chamber according to an embodiment of the present invention;

[0039] Figure 15 This is a schematic diagram of the disassembly steps of the fan mounting structure and the combustion chamber according to an embodiment of the present invention.

[0040] Description of Figure Numbers:

[0041] 10', fan base; 20', fan interface; 21', insert; 30', fan fixing plate; 301', plug hole; 302', screw fixing hole; 40', sealing gasket; 50', screw; 200', combustion chamber; 210', air inlet;

[0042] 100A', fan; 100B', fan components; 200A', combustion chamber assembly;

[0043] 10. Fan base; 101. Air outlet; 102. Fourth fixing hole; 20. Fan interface; 21. Interface frame; 201. Fan interface; 22. Folding portion; 23. Hanging portion; 231. First bending section; 232. Second bending section; 233. Third bending section; 2331. First fixing hole; 24. Folding edge; 241. Third fixing hole; 25. Air avoidance groove; 26. First reinforcing rib; 30. Fan fixing member; 31. Fixing frame; 301. Communication port; 311. Second reinforcing rib; 312. Positioning hole; 32. Lifting portion; 33. First limiting portion; 34. Second limiting portion; 35. Fixing portion; 351. Second fixing hole; 40. Sealing gasket; 50. First fastener; 200. Combustion chamber; 210. Air inlet;

[0044] 100A, fan; 100B, fan components; 200A, combustion chamber assembly.

[0045] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0047] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] For gas appliances such as wall-mounted boilers or water heaters, air (oxygen) and combustible gas are required to participate in combustion. Figures 1 to 4 As shown, in the related art, the fan mounting structure includes a fan base 10', a fan interface part 20', a fan fixing plate 30', a sealing gasket 40' and a screw 50', etc. Among them, the fan interface part 20' has an insert 21', and the fan fixing plate 30' has a socket 301' for the insert 21' to be inserted, and a screw fixing hole 302' for the screw 50' to pass through. The fan mounting structure is used to be installed in the combustion chamber 200' so that the air outlet of the fan 100A' is connected to the air inlet 210' of the combustion chamber 200'. In this way, when the gas equipment is working, the external air (oxygen) can be blown into the combustion chamber 200' through the fan base 10' to mix with the gas in the combustion chamber 200' for combustion.

[0050] like Figure 4 As shown, in the related art, the assembly steps of the fan mounting structure and the combustion chamber 200' generally include the following steps:

[0051] Step 1: Install the fan interface component 20' on the fan base 10' to assemble the fan 100A';

[0052] Step 2: attach the sealing gasket 40' to the fan interface 20' of the fan 100A' to assemble the fan component 100B';

[0053] Step 3: Fix the fan fixing plate 30' to the combustion chamber 200' (generally by spot welding several points) to assemble the combustion chamber assembly 200A';

[0054] Step 4: insert the insert 21 ′ of the fan interface member 20 ′ into the insertion hole 301 ′ of the fan fixing plate 30 ′ and fix the two with screws 50 ′ to complete the assembly of the fan component 100B′ and the combustion chamber assembly 200A′.

[0055] The related technical solutions have the following defects: 1) After the fan component 100B' is fixed to the combustion chamber 200', the fan component 100B' will fall down due to the vibration of the gas equipment and the weight of the fan component 100B' itself. At this time, a gap will be formed between the fan component 100B' and the fan fixing plate 30', causing air leakage. A gap will also be formed between the fan fixing plate 30' and the combustion chamber 200', causing air leakage. This is not conducive to the effective control of the air-fuel ratio during combustion by gas equipment such as wall-mounted boilers or water heaters, resulting in the gas equipment not being able to burn normally, and producing various gases harmful to the human body such as carbon monoxide, affecting the safe use of the equipment. 2) Based on the structural design of the existing fan interface part 20' and the fan fixing plate 30', when installing the fan component 100B', the insert 21' on the fan interface part 20' must be smaller than the socket 301' on the fan fixing plate 30' in order to be installed. For this reason, there will be a gap between the socket 301' on the fan fixing plate 30' and the insert 21' of the fan interface part 20', causing the fan component 100B' to generate vibration noise during operation. 3) When the fan component 100B' needs to be replaced for maintenance, the fixing screws 50' between the fan component 100B' and the combustion chamber assembly 200A' must first be removed, and then the fan component 100B' must be pulled out to one side from the socket 301' on the fan fixing plate 30'. During this process, the fan component 100B' is easily blocked by other components and is difficult to remove, which brings inconvenience to maintenance.

[0056] The utility model proposes a fan installation structure, which can improve the installation reliability between the fan and the combustion chamber, reduce the risk of gas leakage, and improve the safety of gas equipment through optimized design of the fan installation structure.

[0057] See also Figures 5 to 9In one embodiment of the present invention, the fan mounting structure is used for gas equipment, which has a combustion chamber 200. The fan mounting structure includes a fan base 10, a fan interface part 20 and a fan fixing part 30: the fan base 10 has an air outlet 101, the fan interface part 20 is fixed to the fan base 10, and is arranged around the air outlet 101; the fan fixing part 30 is used to be fixed to the combustion chamber 200, and the fan fixing part 30 includes a fixing frame 31 arranged around the air inlet 210 of the combustion chamber 200, and a lifting part 32 provided on the bottom side of the fixing frame 31, the lifting part 32 is bent relative to the fixing frame 31 toward a side away from the combustion chamber 200, the fan interface part 20 is connected to the fan fixing part 30, and the lifting part 32 is used to support the bottom of the fan interface part 20.

[0058] In this embodiment, the fan base 10 may include a volute, a wind rotor disposed within the volute, and a motor for driving the wind rotor. The volute is provided with an air inlet and an air outlet 101. The wind rotor rotates to draw external air into the volute through the air inlet and then blow it out through the air outlet 101. The fan interface component 20 is a frame-shaped structure adapted to the shape of the air outlet 101. The fan interface component 20 is disposed around the outer periphery of the air outlet 101 of the fan base 10. The fan interface component 20 is connected to the fan base 10 to assemble the fan 100A. The fan fixing member 30 includes a fixing frame 31, which is a frame-shaped structure adapted to the shape of the air inlet 210 of the combustion chamber 200. The fixing frame 31 includes, but is not limited to, being fixed to the outer wall of the combustion chamber 200 by welding, screw connection, riveting, etc. The fixing frame 31 surrounds a communication port 301 that communicates with the air inlet 210, so that the fan fixing member 30 and the combustion chamber 200 are assembled to form the combustion chamber assembly 200A. The fan interface member 20 includes, but is not limited to, being connected to the fan fixing member 30 by welding, screw connection, riveting, etc. In this way, the fan interface member 20 can be connected and fixed to the combustion chamber 200 through the fan fixing member 30, thereby achieving the assembly of the fan 100A and the combustion chamber 200. To facilitate the replacement and maintenance of the fan 100A, the fan interface member 20 and the fan fixing member 30 can optionally be detachably connected and fixed. The fan fixing member 30 also includes a lifting portion 32 provided on the bottom side of the fixing frame 31. The lifting portion 32 is bent relative to the fixing frame 31 toward the side away from the combustion chamber 200, so that the lifting portion 32 extends a certain distance from the fixing frame 31. When the fan interface member 20 and the fan fixing member 30 are assembled in place, the bottom of the fan interface member 20 abuts against the lifting portion 32. The lifting portion 32 can apply an upward supporting force to the fan interface member 20 to support the fan 100A as a whole, thereby preventing the fan 100A from falling down due to the vibration of the entire machine and its own gravity, so as to ensure the reliability of the assembly of the fan 100A and the combustion chamber 200. Optionally, the fixing frame 31 and the lifting portion 32 are an integrally formed structure to further enhance the structural strength of the fan fixing member 30 and simplify the manufacturing process.

[0059] The technical solution of the present invention is to connect the fan interface part 20 with the fan base 10 to form the fan 100A, and connect the fan fixing part 30 with the combustion chamber 200 to form the combustion chamber assembly 200A. The fan fixing part 30 includes a fixing frame 31 arranged around the periphery of the air inlet 210 of the combustion chamber 200, and a lifting portion 32 arranged on the bottom side of the fixing frame 31. The fan 100A is assembled to the combustion chamber assembly 200A by connecting and fixing the fan interface part 20 with the fan fixing part 30. The connecting port 301 constructed by the fixing frame 31 can connect the air outlet 101 of the fan 100A with the air inlet 210 of the combustion chamber 200, and the lifting portion 32 can apply an upward supporting force to the fan interface part 20 to support the fan 100A as a whole. Since the lifting portion 32 can provide upward support for the fan 100A, the assembly of the fan 100A and the combustion chamber 200 is more stable and reliable, and the fan 100A is prevented from falling down due to the vibration of the entire machine and its own gravity, thereby avoiding the formation of gaps between the fan interface part 20 and the fan fixing part 30 and air leakage, and also avoiding the formation of gaps between the fan fixing part 30 and the combustion chamber 200 and air leakage, which can effectively reduce the risk of air leakage and ensure the airtightness of the combustion chamber 200, thereby being more conducive to the effective control of the air-fuel ratio during combustion of the gas equipment, so as to ensure that the gas equipment can burn normally, reduce the production of harmful gases such as carbon monoxide, and improve the safety of the gas equipment.

[0060] In order to further improve the support stability of the lifting portion 32 on the fan interface component 20, as shown in FIG. Figure 8 and Figure 10 As shown, in one embodiment, the fan interface part 20 includes an interface frame 21 arranged opposite to the fixed frame 31, and a folding portion 22 arranged on the bottom side of the interface frame 21 and bent relative to the interface frame 21. The interface frame 21 is arranged around the outer periphery of the air outlet 101, and the bottom surface of the folding portion 22 is in contact with the supporting portion 32.

[0061] In this embodiment, the interface frame 21 is arranged around the outer periphery of the air outlet 101 of the fan base 10. The interface frame 21 is provided with a fan interface 201 connected to the air outlet 101. The bottom side of the interface frame 21 is provided with a folding portion 22. The folding portion 22 can be bent relative to the interface frame 21 toward the side away from the fixed frame 31, or it can be bent toward the side close to the fixed frame 31. When the fan interface component 20 and the fan fixing component 30 are assembled in place, the bottom surface of the folding portion 22 abuts against the lifting portion 32, and a larger contact area can be formed between the folding portion 22 and the lifting portion 32, so that the lifting portion 32 can provide a more stable support for the fan 100A as a whole. Optionally, the interface frame 21 and the folding portion 22 are an integrally formed structure to further enhance the structural strength of the fan interface component 20 and simplify the manufacturing process. Optionally, the fan interface component 20 and the fan fixing component 30 are both made of sheet metal and are integrally bent and formed.

[0062] like Figure 8 and Figure 13 As shown, in one embodiment, the fan fixing member 30 also includes a first limiting portion 33 provided on the side of the lifting portion 32 away from the fixing frame 31, the first limiting portion 33 is bent upward relative to the lifting portion 32, and the folding portion 22 is bent relative to the interface frame 21 toward the side away from the fixing frame 31 and abuts against the first limiting portion 33.

[0063] In this embodiment, when assembling the fan 100A, the fan interface member 20 is inserted into the fan fixing member 30 so that the bottom surface of the folded portion 22 abuts against the lifting portion 32 to form a tight fit, and the side of the folded portion 22 away from the fixing frame 31 abuts against the first limiting portion 33 to form a tight fit, and then the fan interface member 20 is connected and fixed to the fan fixing member 30. At this time, in the vertical direction, the fan 100A is supported by the upward support force of the lifting portion 32 of the fan fixing member 30. In the horizontal direction, the fan 100A is supported by the force of the first limiting portion 33 of the fan fixing member 30 toward the combustion chamber 200 (for example, to the right). This allows the fan 100A to be fixed by forces in multiple directions, further improving the assembly reliability of the fan 100A and the combustion chamber 200 and avoiding the formation of gaps and air leakage.

[0064] like Figure 13 As shown, in one embodiment, the fan fixing member 30 also includes two second limiting portions 34 respectively arranged on opposite sides of the lifting portion 32, the second limiting portions 34 are located between the first limiting portion 33 and the interface frame 21, each second limiting portion 34 is bent upward relative to the lifting portion 32, and the folding portion 22 is located between the two second limiting portions 34.

[0065] In this embodiment, the fixing frame 31, the lifting part 32, the first limiting part 33 and the two second limiting parts 34 are arranged to form an upwardly open groove body, and the fan interface part 20 can be inserted into the groove body. The first limiting part 33 can limit the movement of the fan interface part 20 to the left, and the two second limiting parts 34 can limit the movement of the fan interface part 20 in the front and rear directions. In this way, the fan interface part 20 can be limited in multiple directions to prevent the fan interface part 20 from shifting in position due to the vibration of the whole machine, thereby further ensuring the installation reliability of the fan 100A as a whole and the combustion chamber 200, and reducing the risk of air leakage.

[0066] Please refer to Figure 8 、 Figure 10 and Figure 13 In one embodiment, the fan fixing member 30 also includes a fixing portion 35 provided on the top side of the fixing frame 31, and the fixing portion 35 is bent relative to the fixing frame 31 toward a side away from the combustion chamber 200. The fan interface member 20 also includes a hanging portion 23 provided on the top side of the interface frame 21, and the hanging portion 23 is hung on the fixing portion 35.

[0067] In this embodiment, during assembly, the fan interface member 20 can be hooked and matched with the fixing portion 35 at the top of the fan fixing member 30 through the hanging portion 23. The fixing portion 35 at the top of the fixing frame 31 can exert an upward lifting force on the hanging portion 23 of the fan interface member 20. At the same time, the lifting portion 32 at the bottom of the fixing frame 31 can exert an upward lifting force on the folding portion 22 of the fan interface member 20. In this way, the fan fixing member 30 can reliably support both the top and bottom of the fan interface member 20, further improving the installation reliability of the fan 100A as a whole and the combustion chamber 200. There are many ways to form the hanging portion 23. For example, a hanging groove for the fixing portion 35 to be inserted can be directly opened on the interface frame 21 to form the hanging portion 23, or the hanging portion 23 can be formed by multiple bends on the top of the interface frame 21.

[0068] like Figure 11 and Figure 12 As shown, in one embodiment, the hanging portion 23 includes a first bending section 231, a second bending section 232 and a third bending section 233 that are bent and connected. The first bending section 231 is arranged on the top side of the interface frame 21 and extends toward the side away from the fixed frame 31. The second bending section 232 is arranged on the side of the first bending section 231 away from the fixed frame 31 and extends upward. The third bending section 233 is arranged on the top side of the second bending section 232 and extends toward the side close to the fixed frame 31. The first bending section 231, the second bending section 232 and the third bending section 233 are arranged to form a groove for the fixing portion 35 to be inserted, and the third bending section 233 is hung on the top surface of the fixing portion 35.

[0069] In this embodiment, the first bending section 231, the second bending section 232, and the third bending section 233 of the hanging portion 23 enclose a groove for inserting the fixing portion 35, such that the hanging portion 23 is generally in a "C" - shaped structure with an opening towards the side of the fan fixing member 30. Consequently, the overall fan interface member 20 is generally in an "arch" - shaped structure. Thus, the rigidity of the fan interface member 20 can be effectively enhanced, making the fan interface member 20 less likely to deform, and thereby making the assembly of the fan interface member 20 and the fan fixing member 30 more stable and reliable. During assembly, the interface frame 21 of the fan interface member 20 moves towards the fixing frame 31 of the fan fixing member 30, so that the fixing portion 35 of the fan fixing member 30 is inserted into the groove formed by the hanging portion 23. Then, the hanging portion 23 is moved downward by a certain distance, such that the first bending section 231 of the hanging portion 23 abuts against the top surface of the fixing portion 35. At the same time, the lifting portion 32 at the bottom of the fixing frame 31 can just support the folding portion 22 of the fan interface member 20. A relatively large contact area can be formed between the first bending section 231 and the fixing portion 35, and between the folding portion 22 and the lifting portion 32, which can further improve the support stability of the fan fixing member 30 for the overall fan 100A.

[0070] To facilitate the disassembly and maintenance of the fan 100A, in one embodiment, the third bending section 233 is detachably connected to the fixing portion 35. Among them, the detachable connection between the third bending section 233 and the fixing portion 35 includes but is not limited to connection by fasteners, snap - connection, etc. When the fan 100A needs to be removed, the connection structure between the third bending section 233 and the fixing portion 35 is loosened, and then the fan interface member 20 can be removed from the fan fixing member 30 in the reverse order of the assembly steps. <000018...​​​​​​​​​In this embodiment, the first fastener 50 includes, but is not limited to, screws, bolts, latches, etc. Optionally, the first fastener 50 is a screw, thereby achieving a screw connection between the third bent section 233 and the fixing portion 35. The number of first fasteners 50 can be one, two, three, or more, depending on actual needs. The number of first fixing holes 2331 and second fixing holes 351 matches the number of first fasteners 50. To further enhance the reliability of the connection between the third bent section 233 and the fixing portion 35, multiple first fasteners 50 may be provided. The fastener connection between the third bent section 233 and the fixing portion 35 is simple and convenient, providing a more stable and reliable connection and easier disassembly. Furthermore, vertically, the bottom of the fan interface component 20 is supported by the upward force of the support portion 32 of the fan fixing component 30, while downwardly, it is subjected to downward pressure from the first fastener 50. This ensures more balanced force on the upper and lower sides of the fan interface component 20, further enhancing the overall assembly reliability of the fan 100A. Furthermore, the screw fixing method in the related art is changed from the side panel fixing method to the top surface fixing method, so that the installation space of the first fastener 50 is larger, the interference is smaller, and the installation and removal of the first fastener 50 is more convenient.

[0073] In order to ensure the installation reliability of the fan 100A and facilitate the disassembly of the fan 100A, Figure 8 As shown, in one embodiment, the fan fixing member 30 also includes a first limiting portion 33 provided on the side of the lifting portion 32 away from the fixing frame 31, the first limiting portion 33 is bent upward relative to the lifting portion 32, and the folding portion 22 is bent relative to the interface frame 21 toward the side away from the fixing frame 31 and abuts against the first limiting portion 33; the distance between the bottom surface of the fixing portion 35 and the top surface of the first bending section 231 is D1, and the distance between the top surface of the first limiting portion 33 and the top surface of the folding portion 22 is D2, wherein D1 is greater than D2.

[0074] In this embodiment, when assembling the fan 100A, the fan interface member 20 is inserted into the fan fixing member 30 so that the bottom surface of the folded portion 22 abuts against the lifting portion 32 to form a tight fit, and the side of the folded portion 22 away from the fixing frame 31 abuts against the first limiting portion 33 to form a tight fit, and then the fan interface member 20 and the fan fixing member 30 are connected and fixed by the first fastener 50. At this time, in the vertical direction, the fan 100A is supported by the upward support force of the lifting portion 32 of the fan fixing member 30, and in the horizontal direction, the fan 100A is supported by the force of the first limiting portion 33 of the fan fixing member 30 toward the combustion chamber 200 (for example, to the right), so that the fan 100A can be fixed by forces in multiple directions, further improving the assembly reliability of the fan 100A and the combustion chamber 200, and avoiding the formation of gaps and air leakage. Furthermore, the distance D1 between the bottom surface of the fixing portion 35 and the top surface of the first bent section 231 is greater than the distance D2 between the top surface of the first limiting portion 33 and the top surface of the folding portion 22, so that the fan interface member 20 and the fan fixing member 30 have space to move upward after being unlocked. Thus, when removing the fan 100A, one only needs to loosen the connection structure between the fan interface member 20 and the fan fixing member 30, then lift the fan interface member 20 upward a distance so that the bottom surface of the fan interface member 20 is higher than the top surface of the first limiting portion 33, and then translate the fan interface member 20 toward the side away from the fan fixing member 30. This prevents the first limiting portion 33 from interfering with the removal of the fan fixing member 30, making the disassembly and maintenance of the fan 100A more convenient.

[0075] like Figure 10 As shown, in one embodiment, the interface frame 21 has a fan interface 201 connected to the air outlet 101, and a plurality of folded edges 24 are provided on the periphery of the fan interface 201. Each folded edge 24 is bent toward a side away from the fixed frame 31 relative to the interface frame 21. At least the folded edge 24 located on the top side of the fan interface 201 is locked and fixed to the fan base 10 by a second fastener, and the hanging portion 23 is provided with an air avoidance groove 25 for the second fastener to pass through.

[0076] In this embodiment, the air outlet end of the fan base 10 is inserted into the fan interface 201, so that multiple folded edges 24 are arranged around the outer periphery of the fan base 10, thereby increasing the contact area between the fan base 10 and the fan interface 20, making the assembly of the two more stable and reliable. Among them, at least part of the folded edges 24 are locked and fixed to the fan base 10 by a second fastener. For example, the fan interface 201 is generally arranged in a square opening that matches the shape of the air outlet 101. The four side edges of the fan interface 201 are respectively provided with folded edges 24. The folded edges 24 located on the top and bottom sides of the fan interface 201 can be connected and fixed to the fan base 10 by a second fastener. The second fastener includes but is not limited to screws, bolts, latches, etc. Optionally, the second fastener is a screw, thereby realizing screw connection between the folded edges 24 and the fan base 10. For example, the folded edge 24 located on the top side of the fan interface 201 is provided with a third fixing hole 241 for the second fastener to pass through, and the fan base 10 is provided with a fourth fixing hole 102 corresponding to the third fixing hole 241. The second fastener is passed through the third fixing hole 241 and the fourth fixing hole 102 to lock and fix the folded edge 24 to the fan base 10. Among them, the number of second fasteners can be set to one, two, three or more according to actual needs. The number of third fixing holes 241 and fourth fixing holes 102 is adapted to the number of second fasteners. In order to ensure the stability of the connection, optionally, a plurality of second fasteners are provided. In addition, the first fastener 50 and the second fastener are both installed from top to bottom with the same installation direction. There is no need to frequently change the installation angle. They can be installed from the top surface at one time, which can improve the installation efficiency.

[0077] Based on the above embodiment, since the hanging portion 23 of the fan interface part 20 is located above the top folding edge 24, in order to facilitate the installation and disassembly of the second fastener, the hanging portion 23 is optionally provided with an air avoidance groove 25 for the second fastener to pass through, and the air avoidance groove 25 can extend from the second bending section 232 to the first bending section 231 and the third bending section 233, wherein the number of the air avoidance grooves 25 is adapted to the number of the second fasteners.

[0078] In order to further improve the structural strength of the fan interface 20, as Figure 10 As shown, in one embodiment, at least some of the bent portions of the fan interface member 20 are provided with first reinforcing ribs 26. For example, the first reinforcing ribs 26 are provided at the bent portion between the interface frame 21 and the folded portion 22, and the first reinforcing ribs 26 are provided at the bent portion between the first bending section 231 and the second bending section 232. Optionally, multiple first reinforcing ribs 26 are provided, and the multiple first reinforcing ribs 26 are arranged at intervals along the extending direction of the side edge of the interface frame 21.

[0079] In order to further improve the structural strength of the fan fixing member 30, as shown in FIG. Figure 13As shown, in one embodiment, the fixing frame 31 is provided with second reinforcing ribs 311. For example, the second reinforcing ribs 311 are respectively provided on two opposing side edges of the fixing frame 31. Optionally, the second reinforcing ribs 311 are in the form of long strips extending along the side edges of the fixing frame 31. This can increase the coverage area of ​​the second reinforcing ribs 311 and further enhance the structural strength of the fan mounting assembly 30.

[0080] In order to facilitate the rapid assembly of the fan fixing member 30 and the combustion chamber 200, as shown in FIG. Figure 13 As shown, in one embodiment, the fixing frame 31 is further provided with a positioning hole 312 for engaging with a protrusion provided on the combustion chamber 200. During assembly, the positioning hole 312 of the fixing frame 31 is aligned with the protrusion on the combustion chamber 200, the fixing frame 31 is pressed against the outer wall of the combustion chamber 200, the protrusion is inserted into the positioning hole 312, and the fixing frame 31 is then fixed to the combustion chamber 200 by welding or screw connection. In addition, the positioning and cooperation between the positioning hole 312 and the protrusion of the combustion chamber 200 can prevent the fan fixing member 30 from shifting in position when the entire machine vibrates, and prevent the fan fixing member 30 from leaking due to a gap between the fan fixing member 30 and the combustion chamber 200.

[0081] like Figure 3 As shown, in the related art, a sealing gasket 40' is provided on the side of the fan interface part 20' facing the combustion chamber 200', and the sealing gasket 40' is provided between the fan interface part 20' and the fan fixing plate 30', so that a certain gap is generated between the fan interface part 20' and the combustion chamber 200', causing air leakage, thereby affecting the air tightness of the combustion chamber 200'.

[0082] In order to further improve the sealing between the fan interface 20 and the combustion chamber 200 and reduce the risk of gas leakage, based on the above embodiment, as Figure 7 and Figure 8 As shown, in one embodiment, the fan mounting structure also includes a sealing gasket 40 provided on the side of the fan interface part 20 facing the combustion chamber 200, the fixed frame 31 has a connecting port 301 connected to the air inlet 210, the area of ​​the connecting port 301 is larger than the area of ​​the air inlet 210, and the sealing gasket 40 is filled in the area between the outer periphery of the air inlet 210 and the inner periphery of the fixed frame 31, and the sealing gasket 40 is used to seal the fan interface part 20 and the combustion chamber 200.

[0083] In this embodiment, the sealing gasket 40 is a frame-shaped structure that matches the shape of the interface frame 21 of the fan interface component 20. The sealing gasket 40 can be fixed to the side of the fan interface component 20 facing the combustion chamber 200 by adhesive bonding. The fixing frame 31 of the fan fixing component 30 is configured with a communication port 301. After the fan fixing component 30 is fixed to the combustion chamber 200, the fixing frame 31 is arranged around the periphery of the air inlet 210. Because the area of ​​the communication port 301 is larger than that of the air inlet 210, an area suitable for accommodating the sealing gasket 40 is formed between the inner periphery of the fixing frame 31 and the outer periphery of the air inlet 210. Thus, when the fan interface 20 and the fan fixing 30 are assembled in place, the sealing gasket 40 can fill the area between the inner periphery of the fixing frame 31 and the outer periphery of the air inlet 210, and the fan interface 20 is pressed against the outer wall of the combustion chamber 200 through the sealing gasket 40, so that a reliable sealing connection structure is formed between the fan interface 20 and the sealing gasket 40. In this way, the fan interface 20 can be directly sealed and connected to the combustion chamber 200 through the sealing member, which has higher sealing reliability and can effectively prevent the formation of gaps between the fan interface 20 and the combustion chamber 200 and air leakage, thereby further improving the airtightness of the combustion chamber 200. In addition, the sealing gasket 40 is generally made of a flexible material such as rubber or silicone, and can also play a role in vibration reduction and noise reduction, which can further reduce the risk of the fan interface 20 being misaligned due to the vibration of the entire machine and reduce noise.

[0084] The following combination Figure 14 , the installation steps of the fan installation structure and the combustion chamber 200 of one embodiment are introduced.

[0085] Step 1: Connect the fan base 10 and the fan interface component 20 to assemble the fan 100A;

[0086] Step 2: Connect the fan 100A to the sealing gasket 40 to assemble the fan component 100B;

[0087] Step 3: Fix the fan fixing member 30 to the combustion chamber 200 to assemble into a combustion chamber assembly 200A;

[0088] Step 4: hook and match the fan interface component 20 with the fan fixing component 30, and lock and fix them with the first fastener 50 to assemble the fan component 100B to the combustion chamber assembly 200A.

[0089] In this embodiment, when assembling the fan component 100B, the fan interface component 20 is inserted into the fan fixing component 30, and the sealing gasket 40 in the fan component 100B is pressed against the combustion chamber 200 with interference fit. The folded portion 22 of the fan interface component 20 abuts against the lifting portion 32 of the fan fixing component 30 to form a tight fit, and the folded portion 22 abuts against the first limiting portion 33 of the fan fixing component 30 to form a tight fit. The fan interface component 20 and the fan fixing component 30 are fixed by the first fastener 50. At this time, for the fan component 100B, in the vertical direction, the fan component 100B will be supported by the upward support force of the fan fixing component 30. Downward pressure is applied by the first fastener 50. Horizontally, the fan component 100B is subjected to a rightward force from the first limiting portion 33 of the fan fixing member 30 below, a rightward force from the fixing portion 35 of the fan fixing member 30 above, and a leftward force from the sealing gasket 40 in the middle section of the fan component 100B. This ensures that the fan component 100B is fixed in place by forces from all directions, preventing gaps and air leaks between the fan component 100B and the combustion chamber 200. This effectively improves the installation and sealing reliability of the fan component 100B and the combustion chamber 200, reduces the risk of air leakage, and enhances the safety of combustion equipment.

[0090] like Figure 15 As shown, the disassembly steps for fan component 100B and combustion chamber 200 are the reverse of their installation steps. To disassemble fan component 100B, first remove first fastener 50 to unlock fan interface component 20 from fan fixing component 30. Then, lift fan interface component 20 upward a certain distance. Finally, move fan interface component 20 away from fan fixing component 30. This simple and convenient disassembly greatly facilitates repair and replacement of fan component 100B.

[0091] The present invention also provides a gas appliance comprising a combustion chamber 200 and a fan mounting structure, the fan mounting structure being mounted within the combustion chamber 200. The specific structure of the fan mounting structure is similar to that of the aforementioned embodiments. Since the present gas appliance utilizes all of the technical solutions of all of the aforementioned embodiments, it possesses at least all of the beneficial effects provided by the technical solutions of the aforementioned embodiments, and therefore will not be further detailed here. The gas appliance includes, but is not limited to, a wall-mounted boiler, a water heater, or other equipment requiring gas injection via a fan 100A.

[0092] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fan installation structure for a gas device having a combustion chamber, characterized in that: The fan installation structure includes: A fan base having an air outlet; A fan interface component is fixed to the fan base and is arranged around the periphery of the air outlet; and The fan fixing part is used to be fixed to the combustion chamber, and the fan fixing part includes a fixing frame arranged around the periphery of the air inlet of the combustion chamber, and a lifting part arranged on the bottom side of the fixing frame, and the lifting part is bent relative to the fixing frame toward the side away from the combustion chamber. The fan interface part is connected to the fan fixing part, and the lifting part is used to support the bottom of the fan interface part.

2. The fan installation structure according to claim 1, characterized in that: The fan interface part includes an interface frame arranged opposite to the fixed frame, and a folding portion arranged on the bottom side of the interface frame and bent relative to the interface frame. The interface frame is arranged around the periphery of the air outlet, and the bottom surface of the folding portion abuts against the supporting portion.

3. The fan installation structure according to claim 2, characterized in that: The fan fixing member also includes a first limiting portion provided on the side of the lifting portion away from the fixing frame, the first limiting portion is bent upward relative to the lifting portion, and the folding portion is bent relative to the interface frame toward the side away from the fixing frame and abuts against the first limiting portion.

4. The fan installation structure according to claim 3, characterized in that: The fan fixing part also includes two second limiting parts respectively arranged on opposite sides of the lifting part, the second limiting parts are located between the first limiting part and the interface frame, each second limiting part is bent upward relative to the lifting part, and the folding part is located between the two second limiting parts.

5. The fan installation structure according to claim 2, characterized in that: The fan fixing member also includes a fixing portion arranged on the top side of the fixing frame, and the fixing portion is bent relative to the fixing frame toward a side away from the combustion chamber. The fan interface member also includes a hanging portion arranged on the top side of the interface frame, and the hanging portion is hung on the fixing portion.

6. The fan installation structure according to claim 5, characterized in that: The hanging portion includes a first bending section, a second bending section and a third bending section that are bent and connected. The first bending section is arranged on the top side of the interface frame and extends toward a side away from the fixed frame. The second bending section is arranged on a side of the first bending section away from the fixed frame and extends upward. The third bending section is arranged on the top side of the second bending section and extends toward a side close to the fixed frame. The first bending section, the second bending section and the third bending section are arranged to form a groove for inserting the fixing portion, and the third bending section is hung on the top surface of the fixing portion.

7. The fan installation structure according to claim 6, characterized in that: The third bending section is detachably connected and fixed to the fixing portion.

8. The fan installation structure according to claim 7, characterized in that: The third bent section is provided with a first fixing hole for a first fastener to pass through, the fixing portion is provided with a second fixing hole corresponding to the first fixing hole, and the first fastener is passed through the first fixing hole and the second fixing hole to lock and fix the third bent section to the fixing portion; And / or, the fan fixing part also includes a first limiting portion provided on the side of the lifting portion away from the fixing frame, the first limiting portion is bent upward relative to the lifting portion, and the folding portion is bent relative to the interface frame toward the side away from the fixing frame and abuts against the first limiting portion; the distance between the bottom surface of the fixing portion and the top surface of the first bending section is D1, and the distance between the top surface of the first limiting portion and the top surface of the folding portion is D2, wherein D1 is greater than D2.

9. The fan installation structure according to claim 5, characterized in that: The interface frame has a fan interface connected to the air outlet, and the periphery of the fan interface is provided with multiple folded edges, each of the folded edges is bent toward the side away from the fixed frame relative to the interface frame, and at least the folded edge located on the top side of the fan interface is locked and fixed to the fan base by a second fastener, and the hanging part is provided with an air avoidance groove for the second fastener to pass through.

10. The fan installation structure according to claim 2, characterized in that: At least a portion of the bent portion of the fan interface component is provided with a first reinforcing rib; and / or the fixing frame is provided with a second reinforcing rib.

11. The fan installation structure according to any one of claims 1 to 10, characterized in that: The fan mounting structure also includes a sealing gasket arranged on the side of the fan interface part facing the combustion chamber, the fixed frame has a connecting port connected to the air inlet, the area of ​​the connecting port is larger than the area of ​​the air inlet, the sealing gasket is filled in the area between the outer periphery of the air inlet and the inner periphery of the fixed frame, and the sealing gasket is used to seal the fan interface part and the combustion chamber.

12. A gas equipment, characterized in that: include: a combustion chamber having an air inlet; And the fan mounting structure according to any one of claims 1 to 11, wherein the fan mounting structure is mounted on the combustion chamber.

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