Noise reduction structure and gas water heater comprising same

Abstract

The utility model provides a kind of noise reduction structure and the gas water heater comprising it, noise reduction structure is set in air inlet and is located in cabinet, including: sound shield, the cavity is formed in the sound shield, multiple buffer portions are spaced apart and are formed multiple chambers in the cavity along the air inlet air intake direction towards the cabinet, multiple the chamber is interconnected, wherein, the air inlet of the chamber close to the air inlet is located in the upper half region along the height direction of the sound shield, and the air inlet of the chamber away from the air inlet is located in the lower half region along the height direction of the sound shield, several noise reduction holes are set on the inner wall of the sound shield corresponding the air inlet, and the noise reduction hole is communicated with the cabinet. By setting multiple buffer portions, and buffer portion is staggered and set along the height direction of sound shield, to guide and buffer the air coming from air inlet, reduce the generation of noise.

Description

Technical Field

[0001] This utility model specifically relates to a noise reduction structure and a gas water heater containing the same. Background Technology

[0002] Gas water heaters heat water by burning fuels such as natural gas, liquefied petroleum gas, or manufactured gas. Combustion requires air as a combustion medium, primarily sourced from the air inlet on the casing. Current gas water heater casing air inlet designs exhibit the following characteristics: Location-wise, they are mostly designed for the rear or top, prioritizing aesthetics and avoiding obstruction; structurally, they are mainly long slots or louvers to ensure unobstructed airflow. Traditional air inlets are often open designs without obstruction, easily drawing in dust, insects, and other impurities, leading to blockages in the combustion system and reducing equipment lifespan. Furthermore, because open air inlets cannot effectively block the noise of the fan impeller, some early designs even required additional soundproof covers or chamber structures due to excessive noise, directly affecting the air intake and resulting in a poor user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the open air inlet in the prior art, which is easily contaminated, and the air intake is affected while reducing noise. This utility model provides a noise reduction structure and a gas water heater containing the same.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A noise reduction structure is disposed at the air inlet and located inside the housing, the noise reduction structure comprising:

[0006] A soundproof cover has a cavity inside. Multiple buffer sections are spaced apart inside the cavity along the air intake direction of the air inlet and facing the housing. The multiple buffer sections separate the cavity and form multiple chambers, which are interconnected. The air inlets of the chambers near the air inlet are located in the upper half of the height direction of the soundproof cover, while the air inlets of the chambers away from the air inlet are located in the lower half of the height direction of the soundproof cover. Several noise reduction holes are opened on the inner wall of the soundproof cover corresponding to the air inlet, and the noise reduction holes are connected to the housing.

[0007] In this solution, multiple buffer sections are set up and staggered along the height of the soundproof cover to guide and buffer the air entering from the air inlet, and finally discharge it through the noise reduction hole. This allows the air entering the cavity to be guided and reduced in noise by the noise reduction hole. Compared with an open air inlet, the staggered buffer sections can block dust, insects and other impurities. The air inlets located in different areas can divert and sort the air entering the cavity layer by layer, further reducing noise generation and ensuring sufficient air intake, thus improving the user experience.

[0008] Preferably, there are two buffer sections, one of which is located away from the air inlet and the other is located near the air inlet. The noise reduction structure also includes a noise reduction section located between the two buffer sections. The noise reduction section separates the cavity and forms a noise reduction chamber, which is connected to the chamber.

[0009] In this solution, by adding a noise reduction section between the two buffer sections, the air coming from the air inlet and being buffered by the buffer section near the air inlet is further guided to reduce air noise.

[0010] Preferably, along the height direction of the soundproof cover, the noise reduction part is disposed in the middle region of the cavity, and both the upper and lower ends of the noise reduction part are spaced apart from the side wall of the soundproof cover, and the area between the upper and lower ends of the noise reduction part and the side wall of the soundproof cover is in communication with the cavity.

[0011] In this scheme, the above-mentioned settings are used to connect the two chambers formed by the two buffer sections with the noise reduction chamber.

[0012] Preferably, the distance between the upper or lower end of the noise reduction part and the side wall of the soundproof cover is smaller than the size of the air inlet along the height direction of the soundproof cover.

[0013] In this solution, by setting the distance between the upper or lower end of the noise reduction part and the side wall of the soundproof cover, the airflow is diverted and guided, thereby reducing noise generation.

[0014] Preferably, the cross-section of the noise reduction section has a wavy structure.

[0015] In this solution, the above-mentioned settings are used to make the noise reduction cavity have several arc-shaped flow channels, thereby improving the noise reduction effect.

[0016] Preferably, the cross-section of the noise reduction part includes a plurality of arc-shaped structures connected end to end, and the curvature of the arc-shaped structures ranges from R10 to R15 mm.

[0017] In this solution, the curvature of the arc-shaped structure is limited by the above settings to ensure the noise reduction effect, while avoiding excessive curvature that would cause excessive airflow resistance, and avoiding excessive curvature that would not achieve effective noise reduction.

[0018] Preferably, along the height direction of the soundproof cover, the height of the air inlet of the chamber accounts for 10% to 15% of the height of the chamber.

[0019] In this solution, the height of the air inlet is limited by the above settings to ensure sufficient airflow into the cavity and avoid affecting the intake volume.

[0020] Preferably, along the height direction of the soundproof cover, the noise reduction hole is located in the upper half of the inner wall of the soundproof cover and is offset from the air inlet of the chamber that is far from the air inlet.

[0021] In this solution, the above-mentioned settings prevent impurities, such as dust, from flowing into the chamber through the noise reduction holes, thus avoiding them from entering the chamber directly.

[0022] Preferably, the opening area of ​​the noise reduction hole accounts for 60% to 70% of the inner wall area of ​​the soundproof cover corresponding to the air inlet.

[0023] In this solution, the above settings limit the opening area of ​​the noise reduction holes to ensure sufficient airflow into the enclosure.

[0024] A gas water heater, the gas water heater including the noise reduction structure as described above.

[0025] In this solution, the gas water heater includes the aforementioned noise reduction structure, which utilizes a buffer section, a noise reduction section, and noise reduction holes to effectively reduce noise from the air flowing in from the air inlet. Compared to an open air inlet, the staggered buffer section can block impurities such as dust and insects, and the air inlets located in different areas can divert and streamline the air entering the cavity layer by layer, further reducing noise generation and ensuring sufficient air intake, thus improving the user experience.

[0026] The positive and progressive effects of this utility model are as follows: By setting multiple buffer sections, which are staggered along the height of the soundproof cover, the air entering from the air inlet is guided and buffered, and finally discharged through the noise reduction hole. This allows the air entering the cavity to be guided and reduced in noise through the noise reduction hole. Compared with an open air inlet, the staggered buffer sections can block dust, insects and other impurities. Moreover, the air inlets located in different areas can divert and sort the air entering the cavity layer by layer, further reducing noise generation and ensuring sufficient air intake, thus improving the user experience. Attached Figure Description

[0027] Figure 1 This is a perspective view of the casing of a gas water heater according to a preferred embodiment of the present invention.

[0028] Figure 2 This diagram shows the positional relationship between the soundproof cover and the enclosure in a preferred embodiment of the present invention.

[0029] Figure 3 This is a perspective view of a soundproof cover according to a preferred embodiment of the present invention.

[0030] Figure 4 This diagram shows the positional relationship between the buffer section and the noise reduction section in a preferred embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] Air Inlet 1

[0033] Box 2

[0034] Soundproof cover 3

[0035] Cavity 31

[0036] Buffer section 32

[0037] Chamber 321

[0038] Air intake 3211

[0039] Noise Reduction Unit 33

[0040] Noise Reduction Hole 331

[0041] Noise Reduction Cavity 332 Detailed Implementation

[0042] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0043] This embodiment provides a noise reduction structure, the specific structure of which is as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the noise reduction structure is located at the air inlet 1 and inside the housing 2. The noise reduction structure includes:

[0044] The soundproof cover 3 has a cavity 31 inside. Multiple buffer parts 32 are arranged at intervals inside the cavity 31 along the air intake direction of the air inlet 1 toward the box 2. The multiple buffer parts 32 separate the cavity 31 and form multiple chambers 321. The multiple chambers 321 are interconnected. The air inlet 3211 of the chamber 321 near the air inlet 1 is located in the upper half of the height direction of the soundproof cover 3, while the air inlet 3211 of the chamber 321 away from the air inlet 1 is located in the lower half of the height direction of the soundproof cover 3. Several noise reduction holes 331 are opened on the inner wall of the soundproof cover 3 corresponding to the air inlet 1. The noise reduction holes 331 are connected to the box 2.

[0045] Specifically, the cavity 31 is a rectangular space with an opening formed by the recess of the soundproof cover 3 into the box 2. Multiple buffer sections 32 are spaced apart within the cavity 31 along the air intake direction. Each buffer section 32 is a flat plate and is positioned perpendicular to the air intake direction within the cavity 31. The size of each buffer section 32 is smaller than the inner wall size of the cavity 31. The multiple buffer sections 32 divide the cavity 31 into several chambers 321. Simultaneously, along the height direction of the soundproof cover 3, one end of each buffer section 32 is spaced apart from the inner wall of the soundproof cover 3 to form an air inlet 3211. That is, each chamber 321 has an air inlet 3211, and adjacent chambers 321 are interconnected through the air inlets 3211. In addition, the air inlet 3211 of the chamber 321 formed by the buffer section 32 near the air inlet 1 is located in the upper half of the height direction of the soundproof cover 3. The buffer section 32 is used to block dust, insects and other impurities from the lower half of the height direction of the soundproof cover 3, and to buffer and guide the air from the air inlet 1. Meanwhile, the air inlet 3211 of the chamber 321 formed by the buffer section 32 away from the air inlet 1 is located in the lower half of the height direction of the soundproof cover 3, so as to be staggered from the air inlet 3211 of the chamber 321 formed by the buffer section 32 near the air inlet 1, and to further guide and buffer the air coming in from the air inlet 1, and block dust, insects and other impurities from the air inlet 3211 of the chamber 321 formed by the buffer section 32 near the air inlet 1.

[0046] In this embodiment, the inner wall of the soundproof cover 3 corresponding to the air inlet 1 is also provided with a number of noise reduction holes 331. The noise reduction holes 331 are connected to the housing 2. Multiple buffer parts 32 are staggered along the height direction of the soundproof cover 3 to guide and buffer the air coming in from the air inlet 1. Finally, the air is discharged through the noise reduction holes 331, so that the air entering the cavity 31 is guided and reduced in noise through the noise reduction holes 331. Compared with the open air inlet, the staggered buffer parts 32 can block dust, insects and other impurities. Moreover, the air inlets 3211 are located in different areas to divert and sort the air entering the cavity 31 layer by layer, further reducing the generation of noise and ensuring sufficient air intake, thus improving the user experience.

[0047] like Figure 2 , Figure 3 and Figure 4 As shown, further, in this embodiment, there are two buffer sections 32. The two buffer sections 32 include a buffer section 32 away from the air inlet 1 and a buffer section 32 close to the air inlet 1. The noise reduction structure also includes a noise reduction section 33. The noise reduction section 33 is disposed between the two buffer sections 32. The noise reduction section 33 separates the cavity 31 and forms a noise reduction cavity 332, and the noise reduction cavity 332 is connected to the cavity 321.

[0048] Specifically, two buffer sections 32 are located near and away from the air inlet 1 within the cavity 31, respectively, while the noise reduction section 33 is located between the two buffer sections 32. The buffer section 32 near the air inlet 1 forms a chamber 321 with the opening of the soundproof cover 3, and the buffer section 32 away from the air inlet 1 forms a chamber 321 with the inner wall of the soundproof cover 3 corresponding to the air inlet 1. The noise reduction section 33 located between the two buffer sections 32 forms a noise reduction cavity 332 with the buffer section 32 near the air inlet 1. The noise reduction cavity 332 and the chamber 321 formed by the buffer section 32 near the air inlet 1 and the opening of the soundproof cover 3 are connected through the air inlet 3211. By adding the noise reduction section 33 between the two buffer sections 32, the air from the air inlet 1 and buffered by the buffer section 32 near the air inlet 1 is further guided to reduce air noise.

[0049] In this embodiment, along the height direction of the soundproof cover 3, the noise reduction part 33 is disposed in the middle region of the cavity 31, and the upper and lower ends of the noise reduction part 33 are spaced apart from the side wall of the soundproof cover 3. The area between the upper and lower ends of the noise reduction part 33 and the side wall of the soundproof cover 3 is connected to the cavity 321.

[0050] In other words, the area between the upper and lower ends of the noise reduction part 33 and the side wall of the soundproof cover 3 is connected to the buffer part 32 near the air inlet 1 and the opening of the soundproof cover 3 to form a cavity 321, and the buffer part 32 away from the air inlet 1 and the inner wall of the soundproof cover 3 corresponding to the air inlet 1 to form a cavity 321. The noise reduction part 33 itself buffers and guides the air to reduce the noise of the air flowing in the cavity 31.

[0051] In this embodiment, the distance between the upper or lower end of the noise reduction part 33 and the side wall of the soundproof cover 3 is smaller than the size of the air inlet 3211 along the height direction of the soundproof cover 3.

[0052] Specifically, the air inlet 3211 in the height direction of the soundproof cover 3 is relatively large, while the distance between the upper or lower end of the noise reduction part 33 and the side wall of the soundproof cover 3 is small. When the air from the air inlet 1 flows into the noise reduction cavity 332 through the buffer part 32 near the air inlet 1, it is further buffered when it flows through the small distance at the upper end of the noise reduction part 33. At the same time, the air flowing into the noise reduction cavity 332 from the upper end of the noise reduction part 33 is further buffered when it flows through the small distance at the lower end of the noise reduction part 33, and flows into the air inlet 3211 in the lower half of the height direction of the soundproof cover 3, which is far away from the air inlet 1, so that the air is further buffered. By limiting the distance between the upper or lower end of the noise reduction part 33 and the side wall of the soundproof cover 3, the air is diverted and guided, thereby reducing noise generation.

[0053] In this embodiment, the cross-section of the noise reduction section 33 is wavy. This makes the noise reduction cavity 332 have several arc-shaped flow channels, which improves the noise reduction effect. Compared with other shapes for the cross-section of the noise reduction section 33, the wavy structure can not only buffer and guide the stratified air flow, but also make the air flow more stable when passing through the wavy structure, avoiding obstruction of air flow.

[0054] In this embodiment, the cross-section of the noise reduction unit 33 includes several arc-shaped structures connected end to end, and the curvature of the arc-shaped structures ranges from R10 to R15 mm.

[0055] Specifically, the wave-like structure includes several arc-shaped structures connected end to end. The curvature of the arc-shaped structures is limited to ensure the noise reduction effect, while avoiding excessive curvature that would cause excessive airflow resistance, and avoiding excessive curvature that would not achieve effective noise reduction.

[0056] In this embodiment, along the height direction of the soundproof cover 3, the height of the air inlet 3211 of the chamber 321 accounts for 10% to 15% of the height of the chamber 31. By limiting the height of the air inlet 3211, sufficient airflow into the chamber 31 is ensured, and the air intake is not affected.

[0057] In this embodiment, along the height direction of the soundproof cover 3, the noise reduction hole 331 is located in the upper half of the inner wall of the soundproof cover 3 and is offset from the air inlet 3211 of the chamber 321 which is far away from the air inlet 1.

[0058] Specifically, the air inlet 3211 of the chamber 321 away from the air inlet 1 is located in the lower part of the height direction of the soundproof cover 3, while the noise reduction hole 331 is located in the upper part of the inner wall of the soundproof cover 3. The air flowing in from the air inlet 3211 of the chamber 321 away from the air inlet 1 first comes into contact with the area of ​​the inner wall of the soundproof cover 3 where the noise reduction hole 331 is not opened, and then flows into the noise reduction hole 331. This avoids impurities, such as dust, carried by the air flowing in from the air inlet 3211 of the chamber 321 away from the air inlet 1 from flowing directly into the box 2 through the noise reduction hole 331.

[0059] In this embodiment, the opening area of ​​the noise reduction hole 331 accounts for 60% to 70% of the inner wall area of ​​the air inlet 1 corresponding to the sound insulation cover 3. By limiting the opening area of ​​the noise reduction hole 331, sufficient airflow into the housing 2 is ensured.

[0060] This embodiment also provides a gas water heater, which includes the above-mentioned noise reduction structure. The buffer part 32, the noise reduction part 33 and the noise reduction hole 331 are used to effectively reduce the noise of the air flowing in from the air inlet. Compared with the open air inlet, the staggered buffer part 32 can block dust, insects and other impurities. The air inlet 3211 is located in different areas, which can divert and sort the air entering the cavity 31 layer by layer, further reducing the generation of noise and ensuring sufficient air intake, thus improving the user experience.

[0061] In addition, the gas water heater in this embodiment can also be controlled by a voice module. The gas water heater housing 2 is equipped with a controller, a voice receiving module, and a voice parsing module, which are based on existing technologies. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller starts or stops the gas water heater accordingly, thereby realizing intelligent control of the gas water heater and improving the user experience.

[0062] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A noise reduction structure, wherein the noise reduction structure is disposed at the air inlet and located inside the housing, characterized in that, The noise reduction structure includes: A soundproof cover has a cavity inside. Multiple buffer sections are spaced apart inside the cavity along the air intake direction of the air inlet and facing the housing. The multiple buffer sections separate the cavity and form multiple chambers, which are interconnected. The air inlets of the chambers near the air inlet are located in the upper half of the height direction of the soundproof cover, while the air inlets of the chambers away from the air inlet are located in the lower half of the height direction of the soundproof cover. Several noise reduction holes are opened on the inner wall of the soundproof cover corresponding to the air inlet, and the noise reduction holes are connected to the housing.

2. The noise reduction structure as described in claim 1, characterized in that, The buffer section is provided in two parts, including a buffer section away from the air inlet and a buffer section close to the air inlet. The noise reduction structure also includes a noise reduction section, which is disposed between the two buffer sections. The noise reduction section separates the cavity and forms a noise reduction cavity, and the noise reduction cavity is connected to the chamber.

3. The noise reduction structure as described in claim 2, characterized in that, Along the height direction of the soundproof cover, the noise reduction part is disposed in the middle region of the cavity, and both the upper and lower ends of the noise reduction part are spaced apart from the side wall of the soundproof cover. The area between the upper and lower ends of the noise reduction part and the side wall of the soundproof cover is connected to the cavity.

4. The noise reduction structure as described in claim 3, characterized in that, The distance between the upper or lower end of the noise reduction unit and the side wall of the soundproof cover is less than the size of the air inlet along the height direction of the soundproof cover.

5. The noise reduction structure as described in claim 4, characterized in that, The cross-section of the noise reduction section has a wavy structure.

6. The noise reduction structure as described in claim 5, characterized in that, The cross-section of the noise reduction part includes several arc-shaped structures connected end to end, and the curvature of the arc-shaped structures ranges from R10 to R15 mm.

7. The noise reduction structure as described in claim 1, characterized in that, Along the height direction of the soundproof cover, the height of the air inlet of the chamber accounts for 10% to 15% of the height of the chamber.

8. The noise reduction structure as described in claim 1, characterized in that, Along the height direction of the soundproof cover, the noise reduction hole is located in the upper half of the inner wall of the soundproof cover and is offset from the air inlet of the chamber that is far away from the air inlet.

9. The noise reduction structure as described in claim 8, characterized in that, The opening area of ​​the noise reduction hole accounts for 60% to 70% of the inner wall area of ​​the soundproof cover corresponding to the air inlet.

10. A gas-fired water heater, characterized in that, The gas water heater includes a noise reduction structure as described in any one of claims 1-9.

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