Gas water heater with noise reduction structure

Abstract

The gas water heater with the noise reduction structure comprises a bottom shell and a face cover, the bottom shell comprises a bottom plate and a bearing plate connected to the bottom edge of the bottom plate, the face cover is provided with a containing cavity with a rear opening and a lower opening, the face cover is arranged on the bottom shell in a covering mode, and the bearing plate is connected to the bottom edge of the bottom plate. The bottom plate and the bearing plate of the bottom shell respectively cover the rear opening and the lower opening of the surface cover, a noise reduction cover is arranged between the bottom shell and the surface cover, the noise reduction cover is provided with the rear opening and the lower opening, and the shape of the noise reduction cover is matched with that of the surface cover. A noise reduction cover is arranged in the containing cavity so that a gap can be formed between the outer side face of the noise reduction cover and the inner side face of the face cover, a noise reduction cavity is formed in the gap, and the noise reduction cover divides the containing cavity into the noise reduction cavity and a containing cavity.

Description

Technical Field

[0001] This utility model relates to the field of gas water heaters, and in particular to a gas water heater with a noise reduction structure. Background Technology

[0002] A gas water heater is a gas appliance that uses gas as fuel and heats cold water in real time by transferring heat to the cold water flowing through a heat exchanger to produce hot water.

[0003] A gas water heater consists of components such as a burner, heat exchanger, and fan. When a gas water heater operates, it generates noise, primarily from the combustion system and the fan system. The combustion system produces combustion noise, and the fan system generates noise when rotating at high speed. This noise is particularly noticeable at night when the surrounding environment is quiet, severely impacting residents' rest quality.

[0004] Currently, water heaters often use sound-absorbing cotton to reduce noise. However, to achieve good noise reduction, the cotton needs to be thick, which increases the cost. Furthermore, to reduce noise across the entire unit, multiple pieces of sound-absorbing cotton need to be applied, further increasing the overall cost. This makes the material cost of using sound-absorbing cotton for noise reduction in existing technologies quite high. While some existing technologies utilize noise-reducing structures, these are often overly complex and inconvenient to install. Alternatively, while simpler noise-reducing structures exist, their effectiveness is often poor. Moreover, current noise-reducing structures only isolate and seal the surface, resulting in insufficient noise reduction. Utility Model Content

[0005] Therefore, it is necessary to provide a gas water heater with a noise reduction structure.

[0006] To solve the above-mentioned technical problems, this utility model provides a gas water heater with a noise reduction structure, including a bottom shell and a top cover. The bottom shell includes a bottom plate and a receiving plate connected to the bottom edge of the bottom plate. The top cover has a receiving cavity with a rear opening and a lower opening. The top cover is placed on the bottom shell, such that the bottom plate and the receiving plate of the bottom shell respectively cover the rear opening and the lower opening of the top cover. A noise reduction cover is provided between the bottom shell and the top cover. The noise reduction cover has a rear opening and a lower opening. The shape of the noise reduction cover matches the shape of the top cover, such that there is a gap between the outer side of the noise reduction cover and the inner side of the top cover. The gap forms a sound-absorbing cavity. The noise reduction cover separates the sound-absorbing cavity and the receiving cavity on the receiving cavity.

[0007] Preferably, the cover includes a panel, the top and side edges of which are respectively connected to an upper plate, a left plate and a right plate, the panel, the upper plate, the left plate and the right plate form a receiving cavity with a rear opening and a lower opening, the noise reduction cover includes a sound-absorbing panel, the top and side edges of which are respectively provided with a sound-absorbing upper plate, a sound-absorbing left plate and a sound-absorbing right plate, the upper plate and the sound-absorbing upper plate, the left plate and the sound-absorbing left plate, the right plate and the sound-absorbing right plate are respectively corresponding to each other and have gaps.

[0008] Preferably, the bottom shell and the top cover are fixed together by a plug-in structure and fasteners. The plug-in structure includes a bottom shell plug-in portion on the bottom shell and a top cover plug-in portion on the top cover, and the bottom shell plug-in portion and the top cover plug-in portion are matched.

[0009] Preferably, the bottom shell insertion part includes a cover plate, a first side edge, and a second side edge. The cover plate is located on top of the bottom plate, and the receiving plate is directly opposite the cover plate. The first side edge and the second side edge are located between the receiving plate and the cover plate, and are directly opposite each other. The top cover insertion part includes an inner edge located inside the upper plate. The edges of the first side edge and the second side edge are provided with inserts and bent edges. Correspondingly, the inner edge is provided with an insertion interface. The inserts are aligned and inserted into the insertion interface, and the bent edges abut against the inner edge.

[0010] Preferably, the outer side of the cover plate fits against the inner side of the upper plate, the cover plate is provided with a limiting protrusion, and the corresponding upper plate is provided with a limiting notch. The limiting notch matches the shape of the limiting protrusion, and the upper plate is positioned at the limiting notch and clamped to the limiting protrusion, so that the cover plate and the upper plate are inserted into each other and form a smoke exhaust pipe mounting hole.

[0011] Preferably, the silencing panel has a first through hole, which connects the silencing cavity and the receiving cavity, and an elastic sealing element is provided at the first through hole.

[0012] Preferably, the noise reduction cover is made of a high-temperature resistant metal material, and connecting ribs are respectively provided between the base plate and the first side and the second side, and the connecting ribs are triangular.

[0013] Preferably, the receiving plate, the cover plate, the first side and the second side are all located on the outer side of the noise reduction cover, and the receiving plate, the cover plate, the first side and the second side are all located on the inner side of the face cover.

[0014] Preferably, the bottom edge of the noise reduction cover is provided with a sound-absorbing lower plate, which is attached to the receiving plate and fixed by screws. The upper plate of the noise reduction cover is fixed to the inner side of the bottom shell by screws.

[0015] Preferably, the top of the noise reduction cover is provided with a fixing plate, the fixing plate is provided with an insertion screw, the corresponding bottom shell is provided with a second through hole, the end of the insertion screw is aligned and passes through the second through hole, the end of the insertion screw is provided with an external thread, and the insertion screw is fixed with a nut through the external thread.

[0016] The beneficial effects of this utility model are as follows: By setting a noise reduction structure with a noise reduction cover inside the gas water heater, the noise of the gas water heater during operation is reduced. The noise reduction cover blocks the noise of combustion and fan, effectively preventing the noise generated by the fan and burner from being transmitted outwards from the front, and increasing the noise propagation distance, thereby reducing the noise of the whole machine during operation. Attached Figure Description

[0017] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0018] Figure 1 This is an exploded view of the burner according to a preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of the burner housing according to a preferred embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom shell structure of a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the face cover according to a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the noise-reducing cover according to a preferred embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the installation of the noise-reducing cover and the bottom shell according to a preferred embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the installation of the noise-reducing cover and the face cover according to a preferred embodiment of the present invention;

[0025] In the diagram: 1. Bottom shell; 2. Front cover; 3. Noise reduction cover; 31. Silencing panel; 4. Silencing cavity; 100. Cover plate; 101. First side; 102. Second side; 5. Insert; 6. Bending edge; 20. Inner edge; 200. Insertion interface; 7. Limiting protrusion; 8. Limiting notch; 9. Exhaust pipe mounting hole; 10. First through hole; 14. Connecting rib; 15. Silencing lower plate; 16. Fixing plate; 18. Burner; 19. Heat exchanger; 20. Fan. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0027] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Reference image - Figure 7 This utility model provides a gas water heater with a noise reduction structure, including a bottom shell 1 and a top cover 2. The bottom shell 1 includes a bottom plate and a receiving plate connected to the bottom edge of the bottom plate. The top cover 2 has a receiving cavity with a rear opening and a lower opening. The top cover 2 covers the bottom shell 1, such that the bottom plate and the receiving plate of the bottom shell 1 respectively cover the rear opening and the lower opening of the top cover 2. A noise reduction cover 3 is provided between the bottom shell 1 and the top cover 2. The noise reduction cover 3 has a rear opening and a lower opening. The shape of the noise reduction cover 3 matches the shape of the top cover 2, such that there is a gap between the outer side of the noise reduction cover 3 and the inner side of the top cover. The gap forms a sound-absorbing cavity 4. The noise reduction cover separates the sound-absorbing cavity 4 and the receiving cavity on the receiving cavity. On the one hand, the noise reduction cover provided between the bottom shell and the top cover forms a five-sided enclosure and isolation between the bottom shell and the top cover; on the other hand, the noise reduction cover is made of stainless steel or other metal materials, replacing the more expensive sound-absorbing cotton. A five-sided noise-reducing cover is installed between the bottom shell and the top cover to block combustion and fan noise. By increasing the noise propagation distance, the overall noise of the unit is reduced, resulting in good noise reduction. Furthermore, the noise-reducing cover is made of stainless steel or other metal materials, resulting in lower material costs. This utility model's gas water heater shell structure ensures no gaps on the sides of the shell, and simplifies the worker's operation during disassembly and assembly.

[0030] In a preferred embodiment, preferably, the cover 2 includes a panel, the top and side edges of which are respectively connected to an upper plate, a left plate and a right plate, the panel, the upper plate, the left plate and the right plate form a receiving cavity with a rear opening and a lower opening, and the noise reduction cover 3 includes a sound-absorbing panel 31, the top and side edges of which are respectively provided with a sound-absorbing upper plate, a sound-absorbing left plate and a sound-absorbing right plate, the upper plate and the sound-absorbing upper plate, the left plate and the sound-absorbing left plate, and the right plate and the sound-absorbing right plate are respectively corresponding one-to-one and have gaps.

[0031] In a preferred embodiment, the bottom shell 1 and the top cover 2 are fixed together by a plug-in structure and fasteners. The plug-in structure includes a bottom shell plug-in portion on the bottom shell 1 and a top cover plug-in portion on the top cover, and the bottom shell plug-in portion matches the top cover plug-in portion.

[0032] In a preferred embodiment, the bottom shell insertion portion includes a cover plate 100, a first side 101, and a second side 102. The cover plate 100 is located on top of the bottom plate, and the receiving plate is directly opposite the cover plate 100. The first side 101 and the second side 102 are located between the receiving plate and the cover plate, and the first side 101 and the second side 102 are directly opposite each other. The top cover insertion portion includes an inner edge 20 located inside the upper plate. The edges of the first side 101 and the second side 102 are provided with inserts 5 and bent edges 6. Correspondingly, the inner edge 20 is provided with an insertion interface 200. The inserts 5 are aligned and inserted into the insertion interface 200, and the bent edges 6 abut against the inner edge 20.

[0033] In a preferred embodiment, the outer side of the cover plate 100 is in contact with the inner side of the upper plate. The cover plate is provided with a limiting protrusion 7, and the corresponding upper plate is provided with a limiting notch 8. The limiting notch 8 matches the shape of the limiting protrusion 7. The upper plate is positioned at the limiting notch and clamped to the limiting protrusion 7, so that the cover plate 100 and the upper plate are inserted into each other and form a smoke exhaust pipe mounting hole 9.

[0034] In a preferred embodiment, the silencing panel 31 has a first through hole 10, which connects the silencing cavity 4 and the receiving cavity. An elastic sealing element is provided at the first through hole 10. The first through hole 10 ensures that the operator can be connected to the operator connection line, so as to form an electrical connection between the operator on the panel and the internal components of the receiving cavity.

[0035] In a preferred embodiment, the noise reduction cover is made of a high-temperature resistant metal material, and connecting ribs are respectively provided between the base plate and the first side and the second side, and the connecting ribs are triangular.

[0036] In a preferred embodiment, the receiving plate, the cover plate 100, the first side 101 and the second side 102 are all located on the outer side of the side plate of the noise reduction cover 3, and the receiving plate, the cover plate 100, the first side 101 and the second side 102 are all located on the inner side of the side plate of the cover 2.

[0037] In a preferred embodiment, the bottom edge of the noise reduction cover 3 is provided with a sound-absorbing lower plate, which is attached to the receiving plate and fixed by screws. The upper plate of the noise reduction cover 3 is fixed to the inner side of the bottom shell 1 by screws.

[0038] In a preferred embodiment, a fixing plate 16 is provided at the top of the noise reduction cover 3, and an insertion screw is provided on the fixing plate 16. A second through hole is provided on the corresponding bottom shell. The end of the insertion screw is aligned and passes through the second through hole. The end of the insertion screw is provided with an external thread, and a nut is fixed to the insertion screw through the external thread.

[0039] The noise-reducing cover is made of stainless steel, and the rear opening of the cover faces the bottom shell. The accommodating cavity houses essential operating components such as a burner, heat exchanger, and fan.

[0040] When the combustion noise and fan noise generated by the burner of a water heater travel from the front and sides, they are first blocked by the noise reduction cover. The unblocked noise must bypass the noise reduction cover to reach the top and bottom covers of the water heater. Therefore, the propagation distance is increased and the propagation speed is reduced, thus effectively reducing the noise transmitted from inside the water heater.

[0041] Preferably, a small amount of thinner sound-absorbing cotton can be added as an auxiliary to further enhance the noise reduction effect. Specifically, the sound-absorbing cotton can be attached to the inner front or side of the sound-absorbing cotton, with a thickness of 2 to 3 mm.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A gas water heater with a noise reduction structure, characterized in that, The device includes a bottom shell and a top cover. The bottom shell includes a bottom plate and a receiving plate connected to the bottom edge of the bottom plate. The top cover has a receiving cavity with a rear opening and a lower opening. The top cover is placed on the bottom shell such that the bottom plate and the receiving plate of the bottom shell respectively cover the rear opening and the lower opening of the top cover. A noise-reducing cover is provided between the bottom shell and the top cover. The noise-reducing cover has a rear opening and a lower opening. The shape of the noise-reducing cover matches the shape of the top cover, such that there is a gap between the outer side of the noise-reducing cover and the inner side of the top cover. The gap forms a sound-absorbing cavity. The noise-reducing cover separates the sound-absorbing cavity and the receiving cavity on the receiving cavity.

2. The gas water heater as described in claim 1, characterized in that, The cover includes a panel, the top and side edges of which are respectively connected to an upper plate, a left plate and a right plate. The panel, the upper plate, the left plate and the right plate form a receiving cavity with a rear opening and a lower opening. The noise reduction cover includes a sound-absorbing panel, the top and side edges of which are respectively provided with a sound-absorbing upper plate, a sound-absorbing left plate and a sound-absorbing right plate. The upper plate and the sound-absorbing upper plate, the left plate and the sound-absorbing left plate, and the right plate and the sound-absorbing right plate are respectively in one-to-one correspondence and have gaps.

3. The gas water heater as described in claim 1, characterized in that, The bottom shell and the top cover are fixed together by a plug-in structure and fasteners. The plug-in structure includes a bottom shell plug-in part on the bottom shell and a top cover plug-in part on the top cover, and the bottom shell plug-in part and the top cover plug-in part are matched.

4. The gas water heater as described in claim 3, characterized in that, The bottom shell insertion part includes a cover plate, a first side edge, and a second side edge. The cover plate is located on top of the bottom plate, and the receiving plate is directly opposite the cover plate. The first side edge and the second side edge are located between the receiving plate and the cover plate, and the first side edge and the second side edge are directly opposite each other. The top cover insertion part includes an inner edge located inside the upper plate. The edges of the first side edge and the second side edge are provided with inserts and bent edges. Correspondingly, the inner edge is provided with an insertion interface. The inserts are aligned and inserted into the insertion interface, and the bent edges abut against the inner edge.

5. The gas water heater as described in claim 4, characterized in that, The outer side of the cover plate fits against the inner side of the upper plate. The cover plate is provided with a limiting protrusion, and the corresponding upper plate is provided with a limiting notch. The limiting notch matches the shape of the limiting protrusion. The upper plate is positioned at the limiting notch and clamped to the limiting protrusion, so that the cover plate and the upper plate are inserted into each other and form a smoke exhaust pipe mounting hole.

6. The gas water heater as described in claim 1, characterized in that, The silencing panel has a first through hole, which connects the silencing cavity and the receiving cavity. An elastic sealing element is provided at the first through hole.

7. The gas water heater as described in claim 4, characterized in that, The noise reduction cover is made of high-temperature resistant metal material, and connecting ribs are respectively provided between the base plate and the first side and the second side, and the connecting ribs are triangular.

8. The gas water heater as described in claim 7, characterized in that, The receiving plate, the cover plate, the first side and the second side are all located on the outside of the noise reduction cover, and the receiving plate, the cover plate, the first side and the second side are all located on the inside of the face cover.

9. The gas water heater as described in claim 4, characterized in that, The bottom edge of the noise reduction cover is provided with a sound-absorbing lower plate, which is attached to the receiving plate and fixed by screws. The upper plate of the noise reduction cover is fixed to the inner side of the bottom shell by screws.

10. The gas water heater as described in claim 4, characterized in that, The top of the noise reduction cover is provided with a fixing plate, and the fixing plate is provided with an insertion screw. Correspondingly, the bottom shell is provided with a second through hole. The end of the insertion screw is aligned and passes through the second through hole. The end of the insertion screw is provided with an external thread, and the insertion screw is fixed with a nut through the external thread.

Images