Fan mounting structure and gas equipment

Abstract

The invention discloses a fan mounting structure and gas equipment, and relates to the technical field of fan mounting, the fan mounting structure is used for the gas equipment, the gas equipment is provided with a combustion cavity, and the fan mounting structure comprises a fan base body, a fan cover and a fan cover, 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 invention, the mounting 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 present invention relates to the technical field of fan installation, and in particular to a fan installation structure and gas equipment. Background Art

[0002] Gas equipment 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 the related technology, 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 whole machine and the gravity of the fan component itself. At this time, a gap will be generated between the fan component and the fan fixing plate, causing air leakage, and 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 gas equipment, resulting in the failure of gas equipment 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 contents are only used to assist in understanding the technical solution of the invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to propose a fan installation structure and a gas equipment, 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 fan installation structure proposed in the present invention is used for a gas device, wherein the gas device has a combustion chamber, and the fan installation structure comprises:

[0006] A fan base having an air outlet;

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

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

[0009] In one embodiment, the fan interface component 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 lifting portion.

[0010] In one embodiment, the fan fixing member also includes a first limiting portion arranged 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 part also includes two second limiting parts which are arranged on opposite sides of the lifting part, the second limiting parts are located between the first limiting part and the interface frame, each of the second limiting parts is bent upward relative to the lifting part, and the folding part is located between the two second limiting parts.

[0012] In one embodiment, 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.

[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 the fixing portion to be inserted, and the third bending section is hung on the top surface of the fixing portion.

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

[0015] In one embodiment, the third bending 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 bending section to the fixing portion;

[0016] And / or, the fan fixing device also includes a first limiting portion arranged 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 a plurality of folded edges are provided on the periphery of the fan interface. Each of the folded edges is bent toward a side away from the fixed frame relative to the interface frame. 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 a clearance 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 arranged on the side of the fan interface component 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 component and the combustion chamber.

[0020] The present invention 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 a fan interface part with a fan base to form a fan, and to connect a fan fixing part with a 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 air outlet of the fan can be connected to the air inlet of the combustion chamber through the connecting port formed by the fixing frame, and an upward supporting force can be applied to the fan interface part through the lifting 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 can be prevented from falling down due to the vibration of the whole machine and its own gravity, thereby avoiding air leakage due to gaps between the fan interface parts and the fan fixing parts, and air leakage due to gaps between the fan fixing parts and the combustion chamber. This can effectively reduce the risk of air leakage and ensure the air tightness of the combustion chamber, which is more conducive to effective control of the air-fuel ratio during combustion of the gas equipment, so as to ensure the normal combustion of the gas equipment, reduce the production of harmful gases such as carbon monoxide, and improve the safety of the use 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0025] Figure 1 It is a schematic diagram of the assembly of the fan installation 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 A schematic diagram of an assembly of a fan installation 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 the middle A;

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

[0034] Fig.10 for Fig. 9 Schematic diagram of the structure of the blower interface;

[0035] Fig.11 for Fig.10 The front view of the blower interface;

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

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

[0038] Fig.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] Fig.15 A schematic diagram of the disassembly steps of a fan mounting structure and a 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 component; 200A', combustion chamber component;

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

[0044] 100A, fan; 100B, fan component; 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 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 creative work are 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 indication 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 used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. 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 contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] Gas appliances such as wall-mounted boilers or water heaters require air (oxygen) and combustible gas to participate in combustion. Figures 1 to 4 As shown, in the related art, the fan installation structure includes a fan base 10', a fan interface 20', a fan fixing plate 30', a sealing gasket 40' and a screw 50'. Among them, the fan interface 20' has an insert 21', and the fan fixing plate 30' has a plug hole 301' for the insert 21' to be inserted, and a screw fixing hole 302' for the screw 50' to pass through. The fan installation 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 part 20' of the fan 100A' to assemble the fan component 100B';

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

[0054] Step 4: insert the inserting piece 21 ′ of the fan interface member 20 ′ into the inserting hole 301 ′ of the fan fixing plate 30 ′ and fix the two with screws 50 ′, so that the fan component 100B′ and the combustion chamber assembly 200A′ are assembled.

[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 gravity of the fan component 100B'. At this time, a gap will be generated between the fan component 100B' and the fan fixing plate 30', and air will leak. A gap will also be generated between the fan fixing plate 30' and the combustion chamber 200'. 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 inability of gas equipment to burn normally, and the generation of carbon monoxide and other gases harmful to the human body, affecting the safety of the machine. 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 plug 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 plug 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 from the socket 301' on the fan fixing plate 30' toward one side. During this process, the fan component 100B' is easily blocked by other components and is not easy to remove, which brings inconvenience to maintenance.

[0056] The present invention 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, and the gas equipment 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, 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 arranged 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 wheel disposed in the volute, and a motor for driving the wind wheel to rotate. The volute is provided with an air inlet and an air outlet 101. The wind wheel rotates to suck external air from the air inlet into the volute and then blow it out from the air outlet 101. The fan interface 20 is a frame-shaped structure adapted to the shape of the air outlet 101. The fan interface 20 is disposed around the outer periphery of the air outlet 101 of the fan base 10. The fan interface 20 is connected to the fan base 10 to assemble to form the fan 100A. The fan fixing part 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 connecting port 301 connected to the air inlet 210, so that the fan fixing part 30 and the combustion chamber 200 are assembled to form a combustion chamber assembly 200A. The fan interface part 20 includes but is not limited to being connected to the fan fixing part 30 by welding, screw connection, riveting, etc. In this way, the fan interface part 20 can be connected and fixed to the combustion chamber 200 through the fan fixing part 30, thereby realizing the assembly of the fan 100A and the combustion chamber 200. In order to facilitate the replacement and maintenance of the fan 100A, the fan interface part 20 and the fan fixing part 30 can be detachably connected and fixed. The fan fixing member 30 also includes a lifting portion 32 disposed on the bottom side of the fixing frame 31. The lifting portion 32 is bent relative to the fixing frame 31 toward a 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, so as to prevent the fan 100A from falling down due to the vibration of the whole 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 part 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 formed 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 part 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 can be prevented from falling down due to the vibration of the entire machine and its own gravity, thereby preventing air leakage due to gaps between the fan interface 20 and the fan fixing 30, and also preventing air leakage due to gaps between the fan fixing 30 and the combustion chamber 200. This can effectively reduce the risk of air leakage and ensure the air tightness of the combustion chamber 200, thereby being more conducive to effectively controlling the air-fuel ratio during combustion of the gas equipment, so as to ensure that the gas equipment can burn normally, reduce the generation 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 member 20, as shown in FIG. Figure 8 and Fig.10 As shown, in one embodiment, the fan interface component 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 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, and 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, and the folding portion 22 can be bent relative to the interface frame 21 toward the side away from the fixed frame 31, or can also be bent toward the side close to the fixed frame 31. When the fan interface 20 and the fan fixing member 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 play a more stable supporting role 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 20 and simplify the manufacturing process. Optionally, the fan interface 20 and the fan fixing member 30 are both sheet metal parts, which are integrally bent and formed.

[0062] like Figure 8 and Fig.13 As shown, in one embodiment, the fan fixing member 30 also includes a first limiting portion 33 arranged 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 as a whole is supported by the upward supporting force of the lifting portion 32 of the fan fixing member 30, and in the horizontal direction, the fan 100A as a whole 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 generation of gaps and air leakage.

[0064] like Fig.13 As shown, in one embodiment, the fan fixing member 30 also includes two second limiting portions 34 which are 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 fixed frame 31, the lifting portion 32, the first limiting portion 33 and the two second limiting portions 34 are arranged to form a groove body that is open upward, and the fan interface component 20 can be inserted into the groove body. The first limiting portion 33 can limit the movement of the fan interface component 20 to the left, and the two second limiting portions 34 can limit the movement of the fan interface component 20 along the front and rear directions. In this way, the fan interface component 20 can be limited in multiple directions to prevent the fan interface component 20 from shifting in position due to the vibration of the entire 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 , Fig.10 and Fig.13 In one embodiment, the fan fixing member 30 also includes a fixing portion 35 disposed 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, and the fan interface member 20 also includes a hanging portion 23 disposed 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 part 20 can be hung and matched with the fixing part 35 at the top of the fan fixing part 30 through the hanging part 23, and the fixing part 35 at the top of the fixing frame 31 can exert an upward lifting force on the hanging part 23 of the fan interface part 20, and at the same time, the lifting part 32 at the bottom of the fixing frame 31 can exert an upward lifting force on the folding part 22 of the fan interface part 20, so that the fan fixing part 30 can play a reliable supporting role on both the top and the bottom of the fan interface part 20, and can further improve the installation reliability of the fan 100A as a whole and the combustion chamber 200. There are many ways to form the hanging part 23. For example, a hanging groove for the fixing part 35 to be inserted can be directly opened on the interface frame 21 to form the hanging part 23, or the hanging part 23 can be formed by multiple bends at the top of the interface frame 21.

[0068] like Fig.11 and Fig.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 a side away from the fixed frame 31. The second bending section 232 is arranged on a 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 a 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 inserting the fixing portion 35, 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 surround to form 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 a "bow"-shaped structure. In this way, the rigidity of the fan interface member 20 can be effectively enhanced, making it less likely for the fan interface member 20 to deform, 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 it is necessary to remove the fan 100A, loosen the connection structure between the third bending section 233 and the fixing portion 35, and then remove the fan interface member 20 from the fan fixing member 30 in the reverse order of the assembly steps.

[0071] Please refer to Figure 8 、 Fig.10 and Fig.13 In one embodiment, the third bending section 233 is provided with a first fixing hole 2331 for the first fastener 50 to pass through, and the fixing portion 35 is provided with a second fixing hole 351 corresponding to the first fixing hole 2331. The first fastener 50 passes through the first fixing hole 2331 and the second fixing hole 351 to lock and fix the third bending section 233 and the fixing portion 35.

[0072] 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, so as to realize the screw connection between the third bending section 233 and the fixing part 35. Among them, the number of the first fasteners 50 can be set to one, two, three or more according to actual needs. The number of the first fixing holes 2331 and the second fixing holes 351 is adapted to the number of the first fasteners 50. In order to further improve the connection reliability between the third bending section 233 and the fixing part 35, optionally, a plurality of first fasteners 50 are provided. The third bending section 233 and the fixing part 35 are connected and fixed by fastener connection, which is simple and convenient to install, and the connection is more stable and reliable; and it is more convenient to disassemble. In addition, in the vertical direction, the bottom of the fan interface part 20 is supported by the upward support force of the lifting part 32 of the fan fixing part 30, and the downward direction is subjected to the downward pressure of the first fastener 50, so that the force on the upper and lower sides of the fan interface part 20 is more balanced, thereby further improving 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 are 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 arranged 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 component 20 is inserted into the fan fixing component 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 component 20 and the fan fixing component 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 supporting force of the lifting portion 32 of the fan fixing component 30, and in the horizontal direction, the fan 100A is supported by the force of the first limiting portion 33 of the fan fixing component 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 generation 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 bending 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 component 20 and the fan fixing component 30 can have space to move upward after being unlocked. In this way, when removing the fan 100A, it is only necessary to loosen the connection structure between the fan interface component 20 and the fan fixing component 30, and then lift the fan interface component 20 upward for a distance so that the bottom surface of the fan interface component 20 is higher than the top surface of the first limiting portion 33, and then translate the fan interface component 20 to the side away from the fan fixing component 30, so as to avoid the first limiting portion 33 interfering with the removal of the fan fixing component 30, making the disassembly and maintenance of the fan 100A more convenient.

[0075] like Fig.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 a clearance 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 a plurality of 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, and 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, so as to realize the screw connection between the folded edge 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, and 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 the third fixing holes 241 and the fourth fixing holes 102 is adapted to the number of the 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, without the need to frequently change the installation angle, and 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 folded edge 24, in order to facilitate the installation and disassembly of the second fastener, the hanging portion 23 is optionally provided with an avoidance groove 25 for the second fastener to pass through, and the 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 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 Fig.10 As shown, in one embodiment, at least part of the bending portion of the fan interface member 20 is provided with a first reinforcing rib 26. For example, the bending portion of the interface frame 21 and the folding portion 22 is provided with a first reinforcing rib 26, and the bending portion of the first bending section 231 and the second bending section 232 is provided with a first reinforcing rib 26. Optionally, a plurality of first reinforcing ribs 26 are provided, and the plurality of first reinforcing ribs 26 are arranged at intervals along the side extension direction of the interface frame 21.

[0079] In order to further improve the structural strength of the fan fixing member 30, as shown in FIG. Fig.13As shown, in one embodiment, the fixing frame 31 is provided with a second reinforcing rib 311. For example, two opposite side frame edges of the fixing frame 31 are respectively provided with a second reinforcing rib 311. Optionally, the second reinforcing rib 311 is in the shape of a long strip extending along the side edge of the fixing frame 31, which can increase the coverage area of ​​the second reinforcing rib 311, and is conducive to further improving the structural strength of the fan fixing member 30.

[0080] In order to facilitate the rapid assembly of the fan fixing member 30 and the combustion chamber 200, as shown in FIG. Fig.13 As shown, in one embodiment, the fixing frame 31 is further provided with a positioning hole 312 for cooperating with the convex part provided on the combustion chamber 200. During assembly, the positioning hole 312 of the fixing frame 31 is aligned with the convex part on the combustion chamber 200, the fixing frame 31 is closely attached to the outer wall surface of the combustion chamber 200, the convex part is inserted into the positioning hole 312, and then the fixing frame 31 and the combustion chamber 200 are fixed by welding or screw connection. In addition, through the positioning cooperation between the positioning hole 312 and the convex part of the combustion chamber 200, it is possible to avoid the position deviation of the fan fixing part 30 when the whole machine vibrates, and to avoid the gap between the fan fixing part 30 and the combustion chamber 200 and air leakage.

[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 performance between the fan interface 20 and the combustion chamber 200 and reduce the risk of air 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 arranged on the side of the fan interface 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 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 20. The sealing gasket 40 can be fixed to the side of the fan interface 20 facing the combustion chamber 200 by bonding. The fixing frame 31 of the fan fixing member 30 is configured with a connecting port 301. After the fan fixing member 30 is fixed to the combustion chamber 200, the fixing frame 31 is arranged around the periphery of the air inlet 210. Since the area of ​​the connecting port 301 is larger than the area 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. In this way, when the fan interface 20 and the fan fixing part 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, so that the fan interface 20 can be directly sealed and connected to the combustion chamber 200 through the sealing part, and the sealing reliability is higher, which can effectively avoid the gap between the fan interface 20 and the combustion chamber 200 and air leakage, and can further improve the air tightness of the combustion chamber 200. In addition, the sealing gasket 40 is generally made of flexible materials such as rubber or silicone, and can also play a role in reducing vibration and noise, which can further reduce the risk of the fan interface 20 being deviated due to the vibration of the whole machine, and reduce noise.

[0084] The following combination Fig.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, the fan fixing member 30 is fixed to the combustion chamber 200 to assemble and form 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 by interference. The folding 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 folding 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 lifting force of the fan fixing component 30. The downward direction is also subject to downward pressure from the first fastener 50; in the horizontal direction, the lower part of the fan component 100B will be subject to the rightward force of the first limiting part 33 of the fan fixing part 30, the upper part of the fan component 100B will be subject to the rightward force of the fixing part 35 of the fan fixing part 30, and the middle section of the fan component 100B will be subject to the leftward force of the sealing gasket 40. In this way, the fan component 100B is fixed by forces in all directions, so that there will be no gap between the fan component 100B and the combustion chamber 200 to cause air leakage. The installation reliability and sealing reliability of the fan component 100B and the combustion chamber 200 can be effectively improved, the risk of air leakage can be reduced, and the safety of the combustion equipment can be improved.

[0090] like Fig.15 As shown, the disassembly steps of the fan component 100B and the combustion chamber 200 are in the opposite order to the installation steps. When disassembling the fan component 100B, first remove the first fastener 50 to unlock the fan interface component 20 and the fan fixing component 30; then lift the fan interface component 20 upward for a certain distance; and then move the fan interface component 20 to the side away from the fan fixing component 30. The disassembly is simple and convenient, which greatly facilitates the maintenance and replacement of the fan component 100B.

[0091] The present invention further provides a gas device, which includes a combustion chamber 200 and a fan mounting structure, and the fan mounting structure is mounted on the combustion chamber 200. The specific structure of the fan mounting structure refers to the above embodiment. Since the gas device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the gas device includes but is not limited to a wall-mounted boiler, a water heater or other equipment that needs to blow gas through the fan 100A.

[0092] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied 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 comprises: A fan base having an air outlet; A fan interface part, fixed to the fan base and arranged around the periphery of the air outlet; and A fan fixing member is used to be fixed to the combustion chamber, and the fan fixing member includes a fixing frame surrounding the periphery of the air inlet of the combustion chamber, and a lifting portion arranged on the bottom side of the fixing frame, and the lifting portion is bent relative to the fixing frame toward a side away from the combustion chamber. The fan interface member is connected to the fan fixing member, and the lifting portion is used to support the bottom of the fan interface member.

2. The fan installation structure according to claim 1, characterized in that: The fan interface component 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 lifting portion.

3. The fan installation structure according to claim 2, characterized in that: The fan fixing member also includes a first limiting portion arranged 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 which are arranged on opposite sides of the lifting part, the second limiting parts are located between the first limiting part and the interface frame, each of the second limiting parts 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 bending 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 bending section and the fixing portion; And / or, the fan fixing device also includes a first limiting portion arranged 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 a plurality of folded edges are provided on the periphery of the fan interface. Each of the folded edges is bent toward a side away from the fixed frame relative to the interface frame. 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 a clearance groove for the second fastener to pass through.

10. The fan installation structure according to claim 2, characterized in that: At least part of the bent portion of the fan interface member 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 component 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 component 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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