Combustion assembly, gas equipment and cover plate

Abstract

The utility model discloses a combustion assembly, gas equipment and a cover plate, the combustion assembly comprises a combustor and a box body, the box body is arranged on the combustor, and a combustion chamber communicated with the combustor is formed in the box body; the box body is provided with a cover plate, one end, close to the combustor, of the cover plate is provided with a first edge, the combustor is provided with a second edge corresponding to the first edge, the first edge abuts against the second edge, the first edge is provided with a first connecting part, the second edge is provided with a first matching part, and the first connecting part is clamped with the first matching part in a limiting mode. The problems that an existing combustion assembly is low in assembling efficiency, and the heat exchange efficiency of gas equipment is affected can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas heating, and particularly relates to a combustion assembly, a gas device and a cover plate. Background Technique

[0002] Gas devices, such as gas water heaters, produce hot water by combustion heating. The gas device includes a combustion assembly. Gas burns in the combustion assembly to generate high-temperature flue gas, and the high-temperature flue gas exchanges heat with a heat exchange device to achieve the purpose of heating water. The existing combustion assembly includes a plurality of side plates, and adjacent side plates are connected by screws. With such a setting, not only is the assembly efficiency low, but also the high-temperature flue gas will leak from the gap between adjacent side plates, thereby resulting in low heat exchange efficiency of the gas device. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a combustion assembly, a gas device and a cover plate, aiming to solve the problems of low assembly efficiency of the existing combustion assembly and affecting the heat exchange efficiency of the gas device.

[0004] To achieve the above object, the combustion assembly proposed by the utility model includes:

[0005] A burner; and

[0006] A box body provided on the burner, the box body forming a combustion chamber communicating with the burner; the box body has a cover plate, one end of the cover plate close to the burner has a first edge, the burner has a second edge corresponding to the first edge, the first edge abuts against the second edge, the first edge is provided with a first connecting portion, the second edge is provided with a first mating portion, and the first connecting portion and the first mating portion are limited and clamped.

[0007] In an embodiment, one of the first connecting portion and the first mating portion includes a barb, and the other includes a card hole, and the barb is clamped with the card hole.

[0008] In an embodiment, the other of the first connecting portion and the first mating portion further includes a first bending portion, and the first bending portion is inserted into the barb.

[0009] In an embodiment, the first edge is provided with the barb, the opening direction of the barb faces the outside of the box body, the burner is provided with the card hole, the second edge is provided with the first bending portion extending towards the inside of the burner, and the front end of the barb extends out of the burner from the card hole.

[0010] In one embodiment, the barb includes a support section, a first limiting section, and a second limiting section that are connected in sequence. The connection between the support section and the first limiting section is bent, the connection between the first limiting section and the second limiting section is bent, the support section and the first limiting section are both in contact with the first bending portion, and at least a part of the second limiting section is clamped in the clamping hole.

[0011] In one embodiment, the distance between the support section and the second limiting section gradually increases in the direction from the first limiting section towards the second edge.

[0012] In one embodiment, opposite ends of the cover plate along the extension direction of the first edge are provided with second connecting portions, the burner is provided with second mating portions corresponding to the second connecting portions, and the second connecting portions are in contact with and connected to the burner at the second mating portions.

[0013] In one embodiment, the second connecting portions and the second mating portions are respectively provided with assembly holes for fasteners to pass through, and the second connecting portions are locked to the second mating portions by the fasteners.

[0014] In one embodiment, one of the first edge and the second edge is provided with a second bending portion extending in the up and down direction, and the other has a mating surface opposite to the second bending portion, and the second bending portion is in contact with the mating surface.

[0015] In one embodiment, the first edge is provided with a second bending portion extending towards the burner, the inner side of the second edge has a mating surface, the second bending portion is arranged inside the burner and is in contact with the mating surface, and the second bending portion and the barb are arranged side by side along the extension direction of the first edge.

[0016] In one embodiment, the first edge is provided with a plurality of the barbs and a plurality of the second bending portions, and the plurality of barbs and the plurality of second bending portions are alternately arranged at intervals in sequence along the extension direction of the first edge.

[0017] In one embodiment, the cover plate is located on the front side of the box body; and / or,

[0018] The inner side surface of the cover plate is recessed towards the direction away from the combustion chamber to form an installation groove for installing a heat insulation member.

[0019] The present utility model also provides a gas device, and the gas device includes the combustion assembly as described above.

[0020] The present utility model further provides a cover plate, which is applied to a gas device. The gas device includes a burner. The cover plate has a first edge, and the first edge is provided with a first connecting portion and a second bending portion. The first connecting portion is used for limiting and clamping with the burner, and the second bending portion is used for abutting against the inner side surface of the burner.

[0021] The combustion assembly of the present utility model includes a burner and a box body. The box body is arranged on the burner. The box body forms a combustion chamber communicating with the burner. The box body has a cover plate. The first edge of the cover plate abuts against the second edge of the burner, so that the edges of the cover plate and the burner are closely matched. The high-temperature flue gas generated by the combustion of gas in the combustion assembly is not easily leaked, reducing the risk of high-temperature flue gas leakage. Furthermore, it is beneficial to improve the heat exchange efficiency of the gas device. And the first connecting portion of the cover plate is limited and clamped with the first matching portion of the burner, improving the assembly efficiency of the combustion assembly. Thus, it can be seen that the combustion assembly of the present utility model has high assembly efficiency, and when applied to a gas device, it can reduce the risk of high-temperature flue gas leakage, thereby being beneficial to improving the heat exchange efficiency of the gas device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 It is a partial structural schematic diagram of an embodiment of the combustion assembly provided by the present utility model;

[0024] Figure 2 For Figure 1 a schematic diagram of the structure from another perspective of the structure in

[0025] Figure 3 For Figure 2 an enlarged view of part A in

[0026] Figure 4 For Figure 2 a schematic diagram of the disassembled structure of the structure in

[0027] Figure 5 For Figure 4 an enlarged view of part B in

[0028] Figure 6 For Figure 2 a cross-sectional view of a partial structure in

[0029] Figure 7 For Figure 6Enlarged view at position C;

[0030] Figure 8 Schematic structural diagram of an embodiment of the cover plate provided by the present utility model;

[0031] Figure 9 is Figure 8 Enlarged view at position D in.

[0032] Explanation of the reference numerals in the drawings:

[0033] 10. Combustion assembly;

[0034] 100. Burner; 110. Second edge; 120. First mating part; 130. Card hole; 140. First bending part; 150. Second mating part; 160. Mating surface;

[0035] 200. Cover plate; 210. First edge; 220. First connecting part; 230. Barbs; 231. Support section; 232. First limiting section; 233. Second limiting section; 240. Second connecting part; 250. Second bending part; 260. Installation groove;

[0036] 11. Assembly hole.

[0037] The realization, functional features and advantages of the object of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0039] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if the descriptions such as "first", "second", etc. are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] The present utility model provides a combustion assembly, which is applied to a gas appliance. The combustion assembly has high assembly efficiency, and can improve the heat exchange efficiency of the gas appliance when applied to the gas appliance.

[0042] Please refer to Figures 1 to 5 , in an embodiment of the present utility model, the combustion assembly 10 includes a burner 100 and a box body (not shown). The box body is disposed on the burner 100, and the box body forms a combustion chamber communicating with the burner 100; the box body has a cover plate 200. One end of the cover plate 200 close to the burner 100 has a first edge 210, and the burner 100 has a second edge 110 corresponding to the first edge 210. The first edge 210 abuts against the second edge 110. The first edge 210 is provided with a first connecting portion 220, and the second edge 110 is provided with a first mating portion 120. The first connecting portion 220 and the first mating portion 120 are limited and clamped.

[0043] It can be understood that the combustion assembly 10 is applied to a gas appliance, and the gas appliance includes but is not limited to a gas water heater, a gas-fired hot water heating furnace, etc. The box body has a cover plate 200, and the cover plate 200 can be an independent part or a part of the box body. That is to say, the box body can be composed of multiple plate bodies. The multiple plate bodies can be of an integral structure, the multiple plate bodies can also be of a split structure, or part of the plate bodies are of an integral structure and the other part of the plate bodies are of a split structure, which is not specifically limited herein. For example, the box body includes a frame body and a cover plate 200. The frame body has a semi-enclosed structure with a side opening, and the cover plate 200 is covered at the side opening of the frame body. The frame body and the cover plate 200 enclose a combustion chamber that penetrates up and down, and the combustion chamber is communicated with the open end of the burner 100. Among them, the frame body and the cover plate 200 are respectively independent parts, and the cover plate 200 and the frame body are assembled together by including but not limited to fastening connection, snap connection and other methods; or, the cover plate 200 and the frame body are of an integral structure; the frame body has a first side plate and two second side plates respectively arranged on opposite sides of the first side plate. Both of the two second side plates extend forward relative to the first side plate, so that a side opening is formed at the front side of the frame body, and the cover plate 200 is covered at the front side opening of the frame body. The first side plate is provided at the rear side of the frame body. The connection method between the first side plate and the two second side plates can be integrally formed, or assembled together by riveting, welding, fastening connection and other methods.

[0044] Further, the box body can be arranged at the top open end of the burner 100 so that the combustion chamber is communicated with the burner 100. Of course, in another embodiment, when the gas appliance uses inverted combustion, the burner 100 can also be arranged at the top of the combustion chamber of the box body so that the burner 100 is communicated with the combustion chamber.

[0045] Further, the cover plate 200 can be located at the front side of the box body. Of course, the cover plate 200 can also be located at the left side, right side, rear side, etc. of the box body, which is not specifically limited herein. In this solution, the cover plate 200 is located at the front side of the box body. It should be noted that the orientation such as the "front side" of the box body is based on the orientation shown in the drawings, rather than each component must have a specific orientation. The front side refers to the orientation of the gas appliance facing the user. Please refer to the drawings for details.

[0046] Further, the first edge 210 of the cover plate 200 abuts against the second edge 110 of the burner 100, so that there is no gap or a small gap between the cover plate 200 and the burner 100. The high-temperature flue gas generated by the combustion of the gas in the combustion assembly 10 is not easily leaked, and the cold air outside the combustion assembly 10 is not easily introduced into the combustion assembly 10 to affect the heat exchange efficiency between the high-temperature flue gas and the heat exchange device, thereby reducing the emission of unburned carbon monoxide and improving the heat exchange efficiency and use safety of the gas appliance.

[0047] Further, the first connecting portion 220 is in limit clamping connection with the first mating portion 120. The first connecting portion 220 and the first mating portion 120 can adopt the assembly mode of a hook and a clamping portion, and the clamping portion can be a clamping hole 130 or a clamping groove; the first connecting portion 220 and the first mating portion 120 can also adopt the assembly mode of a barb 230 and a clamping portion, and the clamping portion can be a clamping hole 130 or a clamping groove, which is not specifically limited herein. With such a setting, the assembly efficiency is improved and the structure is simplified.

[0048] The combustion assembly 10 of the present utility model includes a burner 100 and a box body. The box body is arranged on the burner 100. The box body forms a combustion chamber communicating with the burner 100. The box body has a cover plate 200. The first edge 210 of the cover plate 200 abuts against the second edge 110 of the burner 100, so that the edge of the cover plate 200 is closely matched with the edge of the burner 100. The high-temperature flue gas generated by the combustion of the gas in the combustion assembly 10 is not easily leaked, reducing the risk of high-temperature flue gas leakage. Furthermore, it is beneficial to improve the heat exchange efficiency of the gas equipment. And the first connecting portion 220 of the cover plate 200 is in limit clamping connection with the first mating portion 120 of the burner 100, improving the assembly efficiency of the combustion assembly 10. It can be seen that the combustion assembly 10 of the present utility model has high assembly efficiency, and when applied to a gas equipment, it can reduce the risk of high-temperature flue gas leakage, thereby being beneficial to improving the heat exchange efficiency of the gas equipment.

[0049] In order to improve the assembly stability and assembly efficiency of the cover plate 200 and the burner 100, please refer to Figure 4 and Figure 5 , in an embodiment, one of the first connecting portion 220 and the first mating portion 120 includes a barb 230, and the other includes a clamping hole 130. The barb 230 is in clamping connection with the clamping hole 130. It can be understood that the opening direction of the barb 230 can face the inner side of the box body or the outer side of the box body, which is not specifically limited herein. The structure of the barb 230 is used to hook in the clamping hole 130, making the assembly of the cover plate 200 and the burner 100 more stable.

[0050] Please refer to Figures 5 to 7 , in an embodiment, the other of the first connecting portion 220 and the first mating portion 120 further includes a first bending portion 140. The first bending portion 140 is inserted into the barb 230. It can be understood that the first bending portion 140 is inserted into the barb 230, enabling the first bending portion 140 to further limit the barb 230. In this way, the situation that the barb 230 shakes in the clamping hole 130 is reduced, improving the assembly stability of the cover plate 200 and the burner 100.

[0051] Further, the first bent portion 140 abuts against the inner wall surface of the barb 230. With this arrangement, the first bent portion 140 can further support the barb 230 and the cover plate 200, further improving the assembly stability of the cover plate 200 and the burner 100.

[0052] Please refer to Figures 6 to 9 In one embodiment, the barb 230 is provided on the first edge 210, the opening direction of the barb 230 faces the outside of the box body, the burner 100 is provided with the card hole 130, and the second edge 110 is provided with the first bent portion 140 extending toward the inside of the burner 100. The front end of the barb 230 extends out of the burner 100 from the card hole 130.

[0053] It can be understood that this solution is described by taking the box body being arranged above the burner 100 as an example. The first edge 210 at the lower end of the cover plate 200 is provided with a barb 230, and the opening direction of the barb 230 faces the outside of the box body. Specifically, the opening direction of the barb 230 faces the front side of the box body. The second edge 110 at the upper end of the burner 100 is provided with a first bent portion 140 and a card hole 130. The card hole 130 is located below the first bent portion 140, and the first bent portion 140 is bent toward the inside of the burner 100. When assembling the cover plate 200, the barb 230 of the cover plate 200 is clamped into the card hole 130 of the burner 100 along the preset assembly direction (for example, from back to front), and the barb 230 is carried on the second edge 110 and the first bent portion 140 of the burner 100. In this way, the assembly is simple and convenient, and it is beneficial for the first edge 210 to abut against the second edge 110, improving the assembly efficiency and reducing the assembly gap.

[0054] Please refer to Figures 7 to 9 In one embodiment, the barb 230 includes a support section 231, a first limiting section 232, and a second limiting section 233 that are connected in sequence. The connection between the support section 231 and the first limiting section 232 is bent, and the connection between the first limiting section 232 and the second limiting section 233 is bent. The support section 231 and the first limiting section 232 both abut against the first bent portion 140, and at least part of the second limiting section 233 is clamped in the card hole 130.

[0055] It can be understood that the support section 231, the first limiting section 232, and the second limiting section 233 enclose a semi-enclosed structure with one side open, and the opening direction faces the outside of the burner 100. One end of the second limiting section 233 is connected to the first limiting section 232, and the other end of the second limiting section 233 passes through the card hole 130 and extends outside the burner 100 to prevent the front end of the second limiting section 233 from occupying the internal space of the burner 100 and affecting the installation of other parts. As for the bending angles of the support section 231 and the first limiting section 232, there is no limitation, and they can be right angles, acute angles, or obtuse angles, etc. In this solution, the bending angles of the support section 231 and the first limiting section 232 are right angles, which is convenient for processing, and the support section 231 is arranged flat, so that the barb 230 can be stably carried on the first bending part 140. In addition, there is no limitation on the bending angles of the first limiting section 232 and the second limiting section 233, and they can be right angles, acute angles, or obtuse angles, etc.

[0056] In an embodiment, the distance between the support section 231 and the second limiting section 233 is gradually enlarged in the direction from the first limiting section 232 towards the second edge 110. With this setting, that is, the bending angles of the first limiting section 232 and the second limiting section 233 are obtuse angles, so that the opening direction of the barb 230 is flared, which is beneficial to improving the smoothness of the barb 230 being clamped in the card hole 130. Optionally, the second limiting section 233 extends obliquely downward and away from the support section 231, which can play a certain guiding role in the installation of the barb 230.

[0057] To further ensure the stability of the assembly of the cover plate 200, please refer to Figures 2 to 7 , in an embodiment, the cover plate 200 is provided with second connecting parts 240 at opposite ends along the extending direction of the first edge 210, the burner 100 is provided with second matching parts 150 corresponding to the second connecting parts 240, and the second connecting parts 240 are abutted against the burner 100 and connected to the second matching parts 150.

[0058] In this embodiment, second connecting parts 240 are provided on both the left and right sides of the cover plate 200, and second matching parts 150 corresponding to the second connecting parts 240 are provided on both the left and right sides of the burner 100. The second connecting parts 240 can be provided at the bottom of the cover plate 200, and the second matching parts 150 are provided at the top of the burner 100. The second connecting parts 240 are abutted against the top of the burner 100 and connected to the second matching parts 150. The connection manner between the second connecting parts 240 and the second matching parts 150 can be connected by fasteners or by a snap structure, and specific details are not limited here.

[0059] In one embodiment, the second connecting portion 240 and the second mating portion 150 are correspondingly provided with assembly holes 11 for fasteners to pass through, and the second connecting portion 240 is locked to the second mating portion 150 through the fasteners. During assembly, the second connecting portion 240 is abutted against the second mating portion 150 along a preset assembly direction (for example, from back to front), so that the assembly holes 11 on the second connecting portion 240 are aligned with the assembly holes 11 on the second mating portion 150. Then, the fasteners are sequentially passed through the two assembly holes 11 along the preset assembly direction (for example, from back to front) and locked, which makes the assembly simple and convenient and is beneficial to improving the assembly stability of the cover plate 200. Among them, the fasteners include but are not limited to screws, rivets, etc. The second connecting portions 240 at the opposite ends of the cover plate 200 further ensure the reliability of the assembly of the cover plate 200.

[0060] Further, there are various ways to form the second connecting portion 240. Taking one of the second connecting portions 240 as an example, first flanges are provided at the opposite ends of the cover plate 200 along the extending direction of the first edge 210, and the first flanges form the second connecting portion 240, and the first flanges are provided with assembly holes 11. In addition, there are also various ways to form the second mating portion 150. Taking one of the second mating portions 150 as an example, a second flange extending toward the box body is provided at the second edge 110 of the burner 100, and the second flange forms the second mating portion 150, and the second flange is provided with assembly holes 11. In this embodiment, the second connecting portion 240 and the cover plate 200 are of an integral structure, and the box body and the second mating portion 150 are of an integral structure, which makes the structure simple and reliable and is convenient for production and manufacturing. Of course, in some embodiments, assembly can also be carried out by means of welding or fastener connection.

[0061] Please refer to Figure 5 and Figure 7 , in one embodiment, one of the first edge 210 and the second edge 110 is provided with a second bending portion 250 extending in the up and down direction, and the other has a mating surface 160 opposite to the second bending portion 250, and the second bending portion 250 abuts against the mating surface 160.

[0062] It can be understood that when the first edge 210 of the cover plate 200 is provided with a second bending portion 250, the second edge 110 of the burner 100 has a mating surface 160, which can be located on the inner side surface of the burner 100 or on the outer side surface of the burner 100. That is to say, the second bending portion 250 of the cover plate 200 can be in contact with the inner side surface of the burner 100, and the second bending portion 250 of the cover plate 200 can also be in contact with the outer side surface of the burner 100. Specifically, it is not limited here. Similarly, when the second edge 110 of the burner 100 is provided with a second bending portion 250, the first edge 210 of the cover plate 200 has a mating surface 160, which can be located on the inner side surface of the cover plate 200 or on the outer side surface of the cover plate 200. That is to say, the second bending portion 250 of the burner 100 can be in contact with the inner side surface of the cover plate 200, and the second bending portion 250 of the burner 100 can also be in contact with the outer side surface of the cover plate 200. Specifically, it is not limited here. By using the second bending portion 250 to be in contact with the mating surface 160, there is no gap or a small gap between the cover plate 200 and the burner 100. The high-temperature flue gas generated by the combustion of the gas in the combustion assembly 10 is not easily leaked, and the cold air outside the combustion assembly 10 is not easily introduced into the combustion assembly 10 to affect the heat exchange efficiency between the high-temperature flue gas and the heat exchange device. Thereby, the emission of unburned carbon monoxide is reduced, and the heat exchange efficiency and the use safety of the gas equipment are improved.

[0063] Please refer to Figures 7 to 9 , in an embodiment, the first edge 210 is provided with a second bending portion 250 extending towards the burner 100, the inner side of the second edge 110 has a mating surface 160, the second bending portion 250 is arranged on the inner side of the burner 100 and is in contact with the mating surface 160, and the second bending portion 250 and the barb 230 are arranged side by side along the extending direction of the first edge 210. It can be understood that the second bending portion 250 and the barb 230 are arranged side by side. When assembling the cover plate 200, the second bending portion 250 is abutted against the mating surface 160 on the inner side of the burner 100 along a preset assembly direction (for example, from back to front), and the barb 230 is clamped in the clamping hole 130 of the burner 100 along the preset assembly direction (for example, from back to front). In this way, the assembly is simple and convenient, and at the same time, the assembly efficiency is improved and the assembly gap is reduced, the structure of the combustion assembly 10 is simplified, which is beneficial to reducing the manufacturing cost.

[0064] In one embodiment, a plurality of the barbs 230 and a plurality of the second bent portions 250 are provided on the first edge 210, and the plurality of barbs 230 and the plurality of second bent portions 250 are alternately arranged at intervals in the extending direction of the first edge 210. With such an arrangement, that is, the plurality of barbs 230 do not interfere with each other during the forming process, and the plurality of second bent portions 250 respectively abut against the mating surface 160 inside the burner 100. The deformation of a single second bent portion 250 has a relatively small impact on the overall cover plate 200, which is beneficial to improving the tightness of the abutment between the edge of the cover plate 200 and the edge of the burner 100, and reducing the risk of leakage of high-temperature flue gas in the combustion assembly 10; and the plurality of barbs 230 improve the assembly stability of the cover plate 200.

[0065] Please refer to Figure 4 and Figure 7 , in one embodiment, the cover plate 200 is located on the front side of the box body; and / or, the inner side surface of the cover plate 200 is recessed in a direction away from the combustion chamber to form an installation groove 260 for installing a heat insulation member.

[0066] It can be understood that the cover plate 200 is located on the front side of the box body, which is convenient for an operator or an automated device to be installed on the burner 100 along a preset assembly direction (for example, from back to front) during assembly. The inner side surface of the cover plate 200 forms an installation groove 260 that is recessed in a direction away from the combustion chamber, and the installation groove 260 is used for installing a heat insulation member. In this way, the distance between the heat insulation member and the flame is increased, which is beneficial to improving the service life of the heat insulation member, and at the same time, the utilization rate of the cover plate 200 is also improved.

[0067] Furthermore, the heat insulation member is made of a heat insulation material with high temperature resistance and a small heat conduction coefficient, such as but not limited to asbestos, heat insulation cotton, or micro-nano heat insulation plates, etc. The setting of the heat insulation member reduces the heat conduction and heat radiation losses of the high-temperature flue gas in the combustion assembly 10.

[0068] The present utility model also proposes a gas equipment, which includes the combustion assembly 10 as described above. The specific structure of the combustion assembly 10 refers to the above embodiments. Since the gas equipment adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated herein one by one.

[0069] In one embodiment, the gas equipment further includes a heat exchanger, and the heat exchanger is arranged on the box body. The heat exchanger includes heat exchange tubes and a fin group disposed on the heat exchange tubes. After the gas and air are mixed and burned, the generated high-temperature flue gas flows upward to the heat exchanger. By providing a fin group on the heat exchange tubes, the fin group plays a role in increasing the heat exchange area with the high-temperature flue gas, and at the same time quickly conducts the heat of the high-temperature flue gas to the heat exchange tubes to heat the heat exchange tubes, so as to realize the heating function of the medium (such as water) in the heat exchange tubes.

[0070] In addition, the gas equipment further includes a blower, which is disposed on the side of the heat exchanger facing away from the combustion chamber. In this embodiment, the gas equipment specifically relates to a forced-draft gas equipment. A vertically-through combustion chamber is formed inside the box body. The heat exchanger and the burner 100 are respectively installed on the upper and lower sides of the box body, and the blower is installed on the top of the heat exchanger. When the gas equipment works, the blower operates to generate a negative pressure inside the box body. The combustion flame of the burner 100 is enclosed in the combustion chamber of the box body and generates high-temperature flue gas. Under the action of the blower, the high-temperature flue gas is continuously conveyed upward and exchanges heat with the heat exchanger to heat the cold water flow path of the heat exchanger.

[0071] Please refer to Figure 8 and Figure 9 The present utility model further provides a cover plate 200, which is applied to the gas equipment. The gas equipment includes a burner 100. The cover plate 200 has a first edge 210, and the first edge 210 is provided with a first connecting portion 220 and a second bending portion 250. The first connecting portion 220 is used for limiting and clamping connection with the burner 100, and the second bending portion 250 is used for abutting against the inner side surface of the burner 100.

[0072] Specifically, the cover plate 200 can be used for gas equipment, including but not limited to gas water heaters, gas-fired hot water heating furnaces, etc. For example, in this embodiment, the gas equipment specifically relates to a forced-draft gas water heater. The gas equipment includes a burner 100. One end of the cover plate 200 close to the burner 100 has a first edge 210. The first edge 210 is provided with a first connecting portion 220, and the first connecting portion 220 is in limiting and clamping connection with the burner 100, which is beneficial to improving the assembly efficiency of the cover plate 200. Moreover, the first edge 210 is provided with a second bending portion 250, and the second bending portion 250 abuts against the inner side surface of the burner 100, so that the edge of the cover plate 200 is closely fitted with the burner 100, and the high-temperature flue gas generated by the combustion of gas in the gas equipment is not easily leaked, reducing the risk of high-temperature flue gas leakage, and thus being beneficial to improving the heat exchange efficiency of the gas equipment. Optionally, the cover plate 200 is installed on the front side of the burner 100, which is convenient for installing the cover plate 200.

[0073] Among them, for the specific structure of the cover plate 200, reference can be made to the structure of the cover plate 200 of the combustion assembly 10 in the above-mentioned embodiment. Since the cover plate 200 of this solution adopts all the technical solutions of the above-mentioned embodiment, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiment, which will not be elaborated here one by one.

[0074] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A combustion assembly, characterized in that: include: Burner; as well as A box body, arranged on the burner, the box body forming a combustion chamber communicated with the burner; The box body has a cover plate, and the cover plate has a first edge at one end close to the burner. The burner has a second edge corresponding to the first edge, the first edge abuts against the second edge, the first edge is provided with a first connecting portion, the second edge is provided with a first matching portion, and the first connecting portion is limitedly engaged with the first matching portion.

2. The combustion assembly according to claim 1, characterized in that One of the first connecting portion and the first matching portion includes a barb, and the other includes a clamping hole, and the barb is clamped with the clamping hole.

3. The combustion assembly according to claim 2, characterized in that The other one of the first connecting portion and the first matching portion further includes a first bending portion, and the first bending portion is inserted into the barb.

4. The combustion assembly according to claim 3, characterized in that The first edge is provided with the barb, the opening direction of the barb is toward the outside of the box body, the burner is provided with the clamping hole, the second edge is provided with the first bending portion extending toward the inside of the burner, and the front end of the barb extends from the clamping hole to the outside of the burner.

5. The combustion assembly according to claim 3, characterized in that The barb includes a supporting section, a first limiting section and a second limiting section connected in sequence, the connection between the supporting section and the first limiting section is bent, the connection between the first limiting section and the second limiting section is bent, the supporting section and the first limiting section are both in contact with the first bending portion, and at least a portion of the second limiting section is clamped in the clamping hole.

6. The combustion assembly according to claim 5, characterized in that The distance between the supporting section and the second limiting section is gradually expanded from the first limiting section toward the second edge.

7. The combustion assembly according to claim 1, characterized in that The cover plate is provided with second connecting parts at two opposite ends along the extension direction of the first edge, the burner is provided with a second matching part corresponding to the second connecting part, and the second connecting part abuts against the burner and is connected with the second matching part.

8. The combustion assembly according to claim 7, characterized in that The second connecting portion and the second matching portion are correspondingly provided with assembly holes for the fastener to pass through, and the second connecting portion is locked to the second matching portion by the fastener.

9. The combustion assembly according to claim 1, characterized in that: One of the first edge and the second edge is provided with a second bent portion extending in the up-down direction, and the other edge has a matching surface opposite to the second bent portion, and the second bent portion abuts against the matching surface.

10. The combustion assembly according to claim 2, characterized in that The first edge is provided with a second bent portion extending toward the burner, the inner side of the second edge has a mating surface, the second bent portion is provided on the inner side of the burner and abuts against the mating surface, and the second bent portion and the barb are arranged side by side along the extension direction of the first edge.

11. The combustion assembly according to claim 10, characterized in that The first edge is provided with a plurality of the barbs and a plurality of the second bending portions, and the plurality of the barbs and the plurality of the second bending portions are alternately arranged in sequence along the extending direction of the first edge.

12. The combustion assembly according to any one of claims 1 to 11, characterized in that: The cover plate is located at the front side of the box body; and / or, The inner side surface of the cover plate is recessed in a direction facing away from the combustion chamber to form an installation groove for installing a heat insulation member.

13. A gas equipment, characterized in that: Comprising a combustion assembly as claimed in any one of claims 1 to 12.

14. A cover plate, applied to a gas device, wherein the gas device comprises a burner, characterized in that: The cover plate has a first edge, the first edge is provided with a first connecting portion and a second bending portion, the first connecting portion is used for being limitedly engaged with the burner, and the second bending portion is used for abutting against the inner side surface of the burner.

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