Noise reduction assembly and gas water heating equipment

Abstract

The utility model relates to the technical field of hot water supply equipment, and discloses a noise reduction assembly and gas water heating equipment. The noise reduction assembly comprises a back shell, a net plate and a sound absorption part, the back shell is provided with an installation groove and an outer air inlet structure, the net plate is arranged in the installation groove, a plurality of installation holes are correspondingly formed in the net plate and the back shell, and the net plate and the back shell are detachably connected in the mode that the net plate and the back shell are arranged in the installation holes in a penetrating mode through fasteners. The sound absorption part is clamped between the net plate and the groove bottom face of the installation groove, the front face of the sound absorption part is back to the groove bottom face of the installation groove, an air inlet space is reserved between the front face of the sound absorption part and the opening of the back shell, and the outer air inlet structure communicates with the air inlet space. According to the utility model, the fasteners penetrate through the mounting holes in the screen plate, the back shell and the gas water heating equipment, and the screen plate and the back shell are detachably arranged on the gas water heating equipment, so that the installation of the screen plate and the back shell is facilitated, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water supply equipment, in particular to a noise reduction component and a gas hot water equipment. Background Art

[0002] Gas water heaters are devices that use gas as energy to heat water. Gas water heaters are widely used in households, businesses, and industries to provide hot water. Common types of gas water heaters include gas water heaters, gas wall-mounted boilers, etc.

[0003] In the prior art, such as Figure 1 and Figure 2 As shown, the gas water heater 3' is usually installed on the wall 1'. When the gas water heater 3' is in use, part of the noise inside the gas water heater 3' will be transmitted through the shell of the gas water heater 3', and the other part will be diffracted through the air inlet and air inlet channel of the gas water heater 3' in sequence. The noise diffracted from the air inlet channel will be reflected by the wall 1', and the noise diffracted from the air inlet will be directly transmitted to the user's ears after being reflected by the wall 1', resulting in a relatively large surrounding noise of the gas water heater 3'. Utility Model Content

[0004] The first technical problem solved by the utility model is to provide a noise reduction component, which effectively solves the problem of excessive noise in existing gas water heaters. By installing the noise reduction component on the gas water heater, the noise generated by the operation of the gas water heater can be significantly reduced, thereby improving the user comfort.

[0005] The second technical problem solved by the utility model is to provide a gas water heater, which effectively solves the problem of excessive noise in existing gas water heaters, can significantly reduce the noise generated by the operation of the gas water heater, and improve the comfort of users.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A noise reduction component, used for a gas water heater, comprising:

[0008] The back shell is provided with a mounting groove and an external air inlet structure;

[0009] The mesh plate is arranged in the installation groove, and at least two installation holes are provided on the mesh plate and the back shell, and the installation holes on the mesh plate correspond to the installation holes on the back shell one by one; the mesh plate and the back shell are sequentially extended into the corresponding installation holes through fasteners and threadedly matched with one of the installation holes to realize the detachable connection between the mesh plate and the back shell;

[0010] A sound absorbing member is sandwiched between the mesh plate and the bottom surface of the mounting groove, the front surface of the sound absorbing member faces away from the bottom surface of the mounting groove, an air inlet space is left between the front surface of the sound absorbing member and the opening of the back shell, and the external air inlet structure is connected to the air inlet space.

[0011] Compared with the background technology, the noise reduction assembly of the utility model has the following beneficial effects: the sound absorbing member is clamped and arranged between the mesh plate and the back shell, and the mesh plate and the back shell are sequentially inserted into the corresponding mounting holes through fasteners and threadedly matched with one of the mounting holes to realize detachable connection; taking the gas water heater as an example, when the noise reduction assembly is used, on the one hand, the sound absorbing member can be well fixed, and on the other hand, the structure of the mesh plate will not affect the sound absorption effect of the sound absorbing member. The back shell covers the air inlet on the back of the gas water heater to form a enclosure for the noise leaking from the air inlet. In addition, a sound absorbing member is clamped between the mesh plate and the bottom surface of the installation groove, and an air inlet space is left between the front side of the sound absorbing member and the opening of the back shell. In this way, the sound absorbing member and the mesh plate are installed on the back side of the gas water heater through the back shell, and the mesh plate and the back side of the gas water heater are spaced apart, and the interval forms an air inlet channel. Since the air inlet channel is connected to the air inlet of the gas water heater, when the gas water heater is running, outside air enters the air inlet channel from the external air inlet structure, and enters the air inlet of the gas water heater along the air inlet channel. Not only can it take away part of the heat on the back side of the gas water heater to appropriately cool it down, but also since the sound absorbing member is arranged in the air inlet channel, the noise generated when the outside air circulates in the air inlet channel can be absorbed by the sound absorbing member, thereby reducing the noise caused by the outside air entering the air inlet channel.

[0012] In addition, part of the noise generated by the fan and water pump in the gas water heater is diffracted through the air inlet of the gas water heater. Since the air inlet is connected to the air inlet channel and a sound absorbing member is arranged in the air inlet channel, the diffracted noise directly enters the sound absorbing member and is absorbed by the sound absorbing member after multiple refractions, thereby reducing the noise leaking from the air inlet. In addition, by providing mounting holes on the mesh plate, the back shell and the gas water heater respectively, the mesh plate and the back shell are detachably arranged on the gas water heater through fasteners, so as to facilitate the installation of the mesh plate and the back shell and improve the installation efficiency.

[0013] At the same time, when the sound-absorbing part uses sound-absorbing cotton, the clamping structure formed by the mesh plate and the back shell can exert a certain pressure on the two sides of the sound-absorbing cotton to ensure that the distance from the side of the sound-absorbing cotton to the back of the gas water heater is constant, ensuring that the sound-absorbing cotton will not be deformed during long-term use, and will not compress or block the air inlet channel, thereby ensuring the air intake effect and noise reduction effect of the air inlet channel.

[0014] In summary, it can be seen that setting the noise reduction component on the back of the gas water heater can significantly reduce the multiple noises generated during the operation of the gas water heater. At the same time, the sound-absorbing component is not easy to deform, which ensures the smooth flow of the air inlet channel and improves the user's comfort. The use of fasteners makes the installation and disassembly of the mesh plate and the back shell simple and quick.

[0015] In one of the embodiments, the back shell is provided with a first flange arranged around its outer edge, and the mesh plate is provided with a second flange arranged around its outer edge, and at least two of the mounting holes are provided on the first flange and the second flange.

[0016] In one of the embodiments, the back shell includes a back plate and a side wall arranged around the circumference of the back plate, the first flange is arranged around the side wall, and the mounting groove is formed between the side wall and the back plate.

[0017] In one of the embodiments, the area of ​​the mesh plate matches the area of ​​the back plate.

[0018] In one of the embodiments, the sound absorbing member is bonded and fixed to the bottom surface of the installation groove, and the coverage area of ​​the sound absorbing member is matched with the bottom surface area of ​​the installation groove.

[0019] In one of the embodiments, the mesh plate has a plurality of strip holes, and the length direction of the strip holes is consistent with the length direction of the mesh plate.

[0020] The above second technical problem is solved by the following technical solution:

[0021] A gas water heater, comprising:

[0022] The shell is provided with an air inlet and a mounting hole;

[0023] Noise reduction component, the mounting holes on the shell, the mounting holes on the mesh plate and the mounting holes on the back shell correspond to each other; the mesh plate, the back shell and the shell are extended into the corresponding mounting holes through fasteners and are threadedly matched with one of the mounting holes to achieve detachable connection;

[0024] An air inlet passage is left between the sound absorbing component and the back side of the shell, and the air inlet is connected with the external air inlet structure through the air inlet passage.

[0025] Compared with the background technology, the gas water heater described in the utility model has the following beneficial effects: the gas water heater provided with the noise reduction component has obvious noise reduction effect compared with the existing gas water heater, and mounting holes are respectively provided on the back shell and the mesh plate, and the back shell and the mesh plate are directly fixed to the back of the shell by fasteners installed in the mounting holes, and a gap is left between the mesh plate and the back of the shell, and the gap forms an air inlet channel, which is respectively connected to the external air inlet structure and the air inlet, thereby completing the installation of the entire noise reduction component, and the clamping structure formed by the mesh plate and the back shell can apply a certain pressure to the two sides of the sound absorbing component to ensure that the sound absorbing component is not easily deformed, thereby ensuring the air intake effect and noise reduction effect of the air inlet channel.

[0026] In one of the embodiments, the coverage area of ​​the sound absorbing member is matched with the back area of ​​the shell.

[0027] In one of the embodiments, the air inlet is arranged on the upper side of the back side of the shell, and the external air inlet structure is located on the lower side of the back side of the shell.

[0028] In one of the embodiments, a support member is provided in a central area of ​​the mesh plate protruding toward the back side of the shell, and the support member abuts against the back side of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram and noise distribution diagram of a gas water heater installed on a wall in the prior art;

[0031] Figure 2 A cross-sectional view and noise distribution diagram of a gas water heater installed on a wall in the prior art;

[0032] Figure 3 This is a structural schematic diagram of a noise reduction component installed on a gas water heater according to an embodiment of the utility model;

[0033] Figure 4 This is an explosion diagram of a noise reduction component installed on a gas water heater according to an embodiment of the utility model;

[0034] Figure 5 for Figure 3 A cross-sectional view of the noise reduction assembly shown installed on a gas water heater;

[0035] Figure 6 for Figure 5 A partial enlarged view of part A;

[0036] Figure 7 This is a schematic diagram of the structure of a shell in a gas water heater according to an embodiment of the utility model;

[0037] Figure 8 This is a structural schematic diagram of a noise reduction assembly in an embodiment of the utility model in which a mesh plate is installed on a gas water heater;

[0038] Fig. 9 This is a structural schematic diagram of a mesh plate in a noise reduction assembly according to an embodiment of the utility model;

[0039] Fig.10 This is a schematic diagram of the structure of a back shell in a noise reduction component according to an embodiment of the utility model;

[0040] Fig.11 This is a schematic diagram of the matching structure of a back shell and a sound absorbing component in a noise reduction component according to an embodiment of the utility model;

[0041] Fig.12 The present invention is a schematic structural diagram of a sound absorbing component in a noise reduction assembly according to an embodiment of the present invention.

[0042] Description of reference numerals:

[0043] Prior art reference numerals:

[0044] 1', wall; 3', gas water heating equipment.

[0045] The utility model is marked with the following reference numerals:

[0046] 1. Back shell; 101. Installation groove; 102. External air inlet structure; 103. First flange; 104. Back plate; 105. Side wall; 106. Opening; 2. Mesh plate; 201. Second flange; 202. Strip hole; 203. Support member; 3. Gas water heater; 301. Shell; 3011. Air inlet; 4. Installation hole; 5. Fastener; 6. Sound absorbing member; 7. Air inlet channel; 8. Air inlet space. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0050] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In related technologies, such as Figure 1 and Figure 2 As shown, the gas water heater 3' is usually installed on the wall 1'. When the gas water heater 3' is in use, part of the noise inside the gas water heater 3' will be transmitted through the shell of the gas water heater 3', and the other part will be diffracted through the air inlet and air inlet channel of the gas water heater 3' in sequence. The noise diffracted from the air inlet channel will be reflected by the wall 1', and the noise diffracted from the air inlet will be directly transmitted to the user's ears after being reflected by the wall 1', resulting in a relatively large surrounding noise of the gas water heater 3'.

[0052] It should be noted that the main noise sources of the gas water heater 3' are the combustion system and fan system noises, the noise frequencies are concentrated in the low and medium frequencies of 300-1000 Hz, the noise waves are relatively long, the diffraction ability is strong, and there are also high-frequency noises above 1000 Hz.

[0053] Among them, the interior of the shell of the gas water heater 3' is a reverberation sound field, and the sound energy density at each position is close to equal. The six walls of the shell of the gas water heater 3' all radiate noise outward. Setting a cover plate on the back of the gas water heater 3' can change the direction of noise propagation to a certain extent, but it cannot effectively attenuate the noise energy, because the noise diffracted from the air inlet of the gas water heater 3' is transmitted in the back cover plate (with a rectangular channel cross section) in the form of a plane wave, and the amplitude of the plane wave will not decay with the extension of the rectangular channel. Therefore, no matter how long the conventional sound channel is, the sound waves diffracted from the air inlet can be diffracted from the external air inlet structure without attenuation. The reason why the bottom shell of the conventional sound channel has a "noise reduction effect" is that it changes the diffraction direction of the noise. Even if the amount of noise reflected to the front through the wall is reduced, the wall still has a large reflection effect on the leakage noise at the external air inlet structure.

[0054] In order to solve the above technical problems, the following Figures 3 to 11 , describing an embodiment of the utility model.

[0055] According to an embodiment of the present utility model, on one hand, a noise reduction component is provided, which is used for a gas water heater 3 to reduce the noise of the gas water heater 3 .

[0056] The noise reduction component includes a back shell 1 , a mesh plate 2 and a sound absorbing component 6 .

[0057] Specifically, Figure 3 and Figure 4 As shown, the back shell 1 is provided with a mounting groove 101 (such as Fig. 9 As shown) and the external air inlet structure 102 (as shown Figure 5 As shown in FIG. 1 , the external air inlet structure 102 is disposed on the peripheral side wall 105 of the back shell 1 and is connected to the mounting groove 101. It should be noted that the external air inlet structure 102 can be independently disposed on the back shell 1 to form an external air inlet, or the external air inlet structure 102 and the back of the gas water heater are surrounded to form an external air inlet.

[0058] Specifically, Figure 4 As shown, the mesh plate 2 is arranged in the mounting groove 101. The back shell 1 is provided with a plurality of mounting holes 4 (such as Figure 10-11 As shown), the mesh plate 2 is provided with a plurality of mounting holes 4 corresponding to the mounting holes 4 on the back shell 1 (as shown Fig. 9 The mesh plate 2 and the back shell 1 are sequentially extended into the corresponding mounting holes 4 through the fasteners 5 and threadedly matched with one of the mounting holes 4 to realize the detachable connection between the mesh plate 2 and the back shell 1 .

[0059] Specifically, Figure 4 As shown, the sound absorbing member 6 is clamped between the mesh plate 2 and the mounting groove 101 (as shown in FIG. Fig.10An air inlet space 8 is left between the front side of the sound absorbing component 101 and the opening 106 of the back shell 1, and the external air inlet structure 102 is connected with the air inlet space 8.

[0060] This noise reduction assembly clamps the sound absorbing member 6 between the mesh plate 2 and the back shell 1. Taking the gas water heater 3 as an example, when the noise reduction assembly is used, the sound absorbing member 6 can be well fixed, and on the other hand, the structure of the mesh plate 2 will not affect the sound absorption effect of the sound absorbing member 6. The back shell 1 covers the air inlet 3011 on the back of the gas water heater 3, so as to surround the noise leaked from the air inlet 3011. In addition, the sound absorbing member 6 is sandwiched between the mesh plate 2 and the bottom surface of the installation groove 101, and an air inlet space 8 is left between the front side of the sound absorbing member 101 and the opening 106 of the back shell 1. In this way, the sound absorbing member 6 and the mesh plate 2 are installed on the back side of the gas water heater 3 through the back shell 1, and the mesh plate 2 and the back side of the gas water heater 3 are spaced apart, and the space forms an air inlet channel 7. Since the air inlet channel 7 is connected with the air inlet 3011 of the gas water heater 3, when the gas water heater 3 is running, outside air enters the air inlet channel 7 from the external air inlet structure 102, and enters the air inlet 3011 of the gas water heater 3 along the air inlet channel 7, which can not only take away part of the heat on the back side of the gas water heater 3 to appropriately cool it down, but also since the sound absorbing member 6 is arranged in the air inlet channel 7, the noise generated when the outside air circulates in the air inlet channel 7 can be absorbed by the sound absorbing member 6, thereby reducing the noise caused by the outside air entering the air inlet channel 7.

[0061] In addition, part of the noise generated by the fan and water pump in the gas water heater 3 is diffracted through the air inlet 3011 of the gas water heater 3. Since the air inlet 3011 is connected to the air inlet channel 7 and the sound absorbing member 6 is arranged in the air inlet channel 7, the diffracted noise directly enters the sound absorbing member 6 and is absorbed by the sound absorbing member 6 after multiple refractions, thereby reducing the noise leaked from the air inlet 3011. In addition, by correspondingly providing mounting holes 4 on the mesh 2, the back shell 1 and the gas water heater 3, the mesh 2 and the back shell 1 are detachably arranged on the gas water heater 3 by fasteners 5, so as to facilitate the installation of the mesh 2 and the back shell 1 and improve the installation efficiency.

[0062] At the same time, when the sound-absorbing component 6 is made of sound-absorbing cotton, the clamping structure formed by the mesh plate 2 and the back shell 1 can exert a certain pressure on the two sides of the sound-absorbing cotton to ensure that the distance from the side of the sound-absorbing cotton to the back of the gas water heater 3 is constant, ensuring that the sound-absorbing cotton will not be deformed during long-term use, and will not compress or block the air inlet channel 7, thereby ensuring the air intake effect and noise reduction effect of the air inlet channel 7.

[0063] From the above, it can be seen that by arranging the noise reduction component on the back of the gas water heater 3, multiple noises generated during the operation of the gas water heater 3 can be significantly reduced. At the same time, the sound absorbing component 6 is not easily deformed, which ensures that the air inlet channel 7 is unobstructed and improves the user's comfort. The use of the fastener 5 makes the installation and disassembly of the mesh plate 2 and the back shell 1 simple and quick.

[0064] Specifically, the mesh plate 2 and the back shell 1 are detachably connected by extending the fastener 5 into the corresponding mounting hole 4, wherein the fastener 5 can be selected from existing fastening connectors such as bolts and screws, and at least one of the mounting holes 4 on the mesh plate 2 and the back shell 1 is a threaded hole, and the other can be a threaded hole or a through hole. For example, when the fastener is a bolt or a screw, the bolt or the screw extends from the mounting hole 4 on the mesh plate 2 to the mounting hole 4 on the back shell 1 to install and fix the mesh plate 2 and the back shell 1, the mounting hole 4 on the mesh plate 2 can be a through hole or a threaded hole, and the mounting hole 4 on the back shell 1 is a threaded hole; on the contrary, when the bolt or the screw extends from the mounting hole on the back shell 1 to the mounting hole 4 on the mesh plate 2 to install and fix the mesh plate 2 and the back shell 1, the mounting hole 4 on the back shell 1 can be a through hole or a threaded hole, and the mounting hole 4 on the mesh plate 2 is a threaded hole. In the embodiment of the present application, the types of the fastener 5 and the mounting hole 4 are not specifically limited.

[0065] It should be noted that the distance between the mesh plate 2 and the back shell 1 can be designed to be smaller than the thickness of the sound absorbing member 6 to ensure that the sound absorbing member 6 is clamped and fixed between the mesh plate 2 and the back shell 1 .

[0066] Specifically, the mesh plate 2 and the back shell 1 can be arranged in parallel or inclined. In the embodiment of the present application, no specific limitation is imposed on the positional relationship between the mesh plate 2 and the back shell 1.

[0067] Specifically, the mesh plate 2 has a plurality of through holes, so that the noise sound waves in the air inlet channel 7 can directly pass through the through holes of the mesh plate 2 into the sound absorbing member 6 and then be absorbed by the sound absorbing member 6. The through holes on the mesh plate 2 can be arranged into through holes of any existing shape such as circular, square, rectangular, etc. In the embodiment of the present application, the shape and arrangement of the through holes on the mesh plate 2 are not specifically limited.

[0068] Specifically, the shape of the back shell 1 can be set to match the shape of the back of the gas water heater 3. The back shell 1 can be made of metal or plastic. In the embodiment of the present application, there is no specific restriction on the structure and material of the back shell 1.

[0069] Specifically, the thickness and density of the sound absorbing member 6 can be adjusted according to the required sound absorbing effect. Similarly, the sound absorbing member 6 can be designed to be flat, wavy or other specific shapes, and an air inlet channel 7 is ensured between the sound absorbing member 6 and the back of the gas water heater 3. The size of the sound absorbing member 6 can be adapted to the back area of ​​the gas water heater 3 to ensure the sound absorbing and noise reduction effect of the sound absorbing member 6. In the embodiment of the present application, the thickness and shape of the sound absorbing member 6 are not specifically limited.

[0070] In one embodiment, Fig. 9 and Fig.10 As shown, the back shell 1 is provided with a first flange 103, which is arranged around the outer edge of the back shell 1. The mesh plate 2 is provided with a second flange 201, which is arranged around the outer edge of the mesh plate 2. The first flange 103 and the second flange 201 are both provided with a plurality of mounting holes 4 corresponding to each other.

[0071] The first flange 103 is provided on the outer edge of the back shell 1, and the second flange 201 is provided on the outer edge of the mesh plate 2, which can increase the stability of the structure of the back shell 1 and the mesh plate 2, so that the back shell 1 and the mesh plate 2 are more firmly fixed on the gas water heater 3. A plurality of mounting holes 4 corresponding to each other are provided on the first flange 103 and the second flange 201, which ensures the precise alignment between the back shell 1 and the mesh plate 2, facilitates the rapid positioning and installation of the fastener 5, and improves the assembly efficiency. At the same time, the first flange 103 and the second flange 201 are provided to help form a sealed boundary between the back shell 1 and the mesh plate 2, and reduce the internal noise of the gas water heater 3 from leaking from the connection between the mesh plate 2 and the gas water heater 3, and the back shell 1 and the mesh plate 2.

[0072] Specifically, the first flange 103 and the second flange 201 can be inclined flanges, bent flanges or gradient thickness flanges, etc., and can be adaptively selected according to the processing technology and the use environment. In the embodiment of the present application, there is no specific restriction on the types of the first flange 103 and the second flange 201.

[0073] In one embodiment, Fig.10 As shown, the back shell 1 includes a back plate 104 and a side wall 105 , the side wall 105 is arranged around the circumference of the back shell 1 , and the first flange 103 is arranged around the side wall 105 , wherein a mounting groove 101 is formed between the side wall 105 and the back plate 104 .

[0074] A side wall 105 is disposed around the back plate 104, so that a mounting groove 101 is formed between the side wall 105 and the back plate 104, so as to facilitate the production of the back shell 1. The first flange 103 is disposed around the side wall 105, so as to facilitate the processing of the first flange 103 on the back shell 1, while ensuring the stability of the entire structure, so that there will be no shaking or loosening even when the device is running.

[0075] In one embodiment, Figure 4 As shown, the area of ​​the screen 2 matches the area of ​​the back plate 104 .

[0076] The area of ​​the mesh plate 2 is set to match the area of ​​the back plate 104, so that the mesh plate 2 and the back plate 104 are aligned, and then the mesh plate 2 and the mounting holes 4 on the back plate 104 are aligned, so that the mesh plate 2 and the back plate 104 are installed on the gas water heater 3. At the same time, ensure that the sound absorbing member 6 is firmly clamped between the mesh plate 2 and the back plate 104.

[0077] In one embodiment, Figures 4 to 6 As shown, the sound absorbing member 6 is fixedly mounted on the bottom surface of the installation groove 101 by bonding, and the coverage area of ​​the sound absorbing member 6 matches the bottom surface area of ​​the installation groove 101. In this way, the sound absorbing member 6 can absorb the noise transmitted from the back of the gas water heater over a larger range.

[0078] The sound absorbing member 6 is fixed to the bottom surface of the mounting groove 101 by bonding, and the sound absorbing member 6 is installed in the mounting groove 101 of the back shell 1, so that the sound absorbing member 6 is firmly installed between the back shell 1 and the mesh plate 2, thereby improving the stability of the noise reduction component.

[0079] Specifically, the sound absorbing member 6 can be bonded to the bottom surface of the installation groove 101 by an adhesive, for example, the adhesive can be a double-sided adhesive, a high temperature resistant or waterproof adhesive, etc. The sound absorbing member 6 can also be bonded to the mesh plate 2 by a hot melt adhesive or a Velcro. In the embodiment of the present application, the bonding method of the sound absorbing member 6 is not specifically limited.

[0080] In one embodiment, Fig. 9 As shown, the mesh plate 2 has a plurality of strip holes 202 , and the length direction of the strip holes 202 is arranged parallel to the length direction of the mesh plate 2 .

[0081] A plurality of strip holes 202 are arranged on the mesh plate 2. Since the length direction of the strip holes 202 is parallel to the length direction of the mesh plate 2, the probability of the noise sound waves in the air intake passage contacting the mesh plate 2 is reduced, and the probability of the noise sound waves in the air intake passage contacting the sound absorbing member 6 is increased, thereby improving the sound absorption effect and more effectively absorbing and reducing noise. At the same time, the strip holes 202 provide additional rigidity for the mesh plate 2, enhance the stability of the overall structure, and reduce vibration and distortion.

[0082] Specifically, the strip-shaped hole 202 may be configured to be rectangular, elliptical, etc. In the embodiment of the present application, the shape of the strip-shaped hole 202 is not specifically limited.

[0083] For example, Fig. 9 As shown, the strip-shaped holes 202 are arranged in a rectangular shape, and a plurality of strip-shaped holes 202 may be arranged in parallel.

[0084] According to an embodiment of the present utility model, on the other hand, Figures 2 to 12 As shown, a gas water heater is also provided, including a housing 301 and a noise reduction component.

[0085] Specifically, Figure 7 As shown, the shell 301 is provided with an air inlet 3011 and a mounting hole 4 , and the mounting hole 4 on the shell 301 corresponds to the mounting hole 4 on the mesh plate 2 and the back shell 1 .

[0086] Specifically, combined Figures 7 to 12 As shown, the mesh plate 2, the back shell 1 and the housing 301 are connected detachably by means of fasteners 5 extending into the corresponding mounting holes 4 and threadedly engaging with one of the mounting holes 4.

[0087] Specifically, combined Figure 5 and Figure 6 As shown, an air inlet channel 7 is left between the mesh plate 2 and the back of the shell 301 , and the air inlet 3011 is connected to the external air inlet structure 102 through the air inlet channel 7 .

[0088] This gas water heater is provided with a gas water heater 3 having the noise reduction component, and has a significant noise reduction effect compared with the existing gas water heater 3. Mounting holes 4 are respectively provided on the back shell 1 and the mesh plate 2. The back shell 1 and the mesh plate 2 are directly fixed to the back of the shell 301 by fasteners 5 installed in the mounting holes 4, and a gap is left between the sound absorbing component 6 and the back of the shell 301, and the gap forms an air inlet channel 7. The outer air inlet structure 102 and the back of the shell 301 are surrounded to form an outer air inlet. The air inlet channel 7 is respectively connected to the outer air inlet and the air inlet 3011, thereby completing the installation of the entire noise reduction component. The clamping structure formed by the mesh plate 2 and the back shell 1 can apply a certain pressure to the two sides of the sound absorbing component 6 to ensure that the sound absorbing component 6 is not easily deformed, thereby ensuring the air intake effect and noise reduction effect of the air inlet channel 7.

[0089] It should be noted that the back side of the housing 301 refers to the side of the gas water heater 3 that contacts the wall. When the gas water heater 3 is installed, the back side is usually facing the wall, and the front side is facing the user.

[0090] Specifically, combined Figure 4 and Figure 5 As shown, the length of the air inlet channel 7 can be close to the length of the back side of the shell 301, and the width of the air inlet channel 7 can be close to the width of the back side of the shell 301. The length and width of the air inlet channel 7 can be adaptively adjusted according to the back size of the shell 301. In the embodiment of the present application, no specific restrictions are imposed on the length and width of the air inlet channel 7.

[0091] It should be noted that the type of the gas water heater 3 may be a gas water heater, a gas wall-mounted boiler, etc. In the embodiment of the present application, the type of the gas water heater 3 is not specifically limited.

[0092] In one embodiment, Figure 4 As shown, the coverage area of ​​the sound absorbing member 6 is adapted to the back area of ​​the housing 301 .

[0093] The coverage area of ​​the sound absorbing member 6 is set to match the size of the back side of the housing 301, ensuring that the entire area of ​​the back side of the housing 301 is covered by the sound absorbing member 6, thereby more effectively absorbing the noise in the air inlet channel 7, improving the sound absorption efficiency, reducing noise transmission, and improving the overall noise reduction effect. At the same time, the selection of a sound absorbing member 6 of a suitable size makes it easier to install and fix the sound absorbing member 6, reducing the complexity of the installation process.

[0094] Specifically, Figure 4 As shown, the back of the housing 301 is rectangular, and the sound absorbing member 6 can be arranged in a rectangular shape similar to the back of the housing 301 to ensure the sound absorbing effect of the sound absorbing member 6 and facilitate the installation of the sound absorbing member 6. Therefore, the overall shape and the size of the coverage area of ​​the sound absorbing member 6 can be adaptively adjusted according to the back shape of the housing 301. In the embodiment of the present application, the shape and the size of the area of ​​the sound absorbing member 6 are not specifically limited.

[0095] In one embodiment, in combination Figures 4 to 6 As shown, the air inlet 3011 is arranged on the upper side of the back side of the shell 301, and the external air inlet structure 102 is located on the lower side of the back side of the shell 301, so that the distance between the air inlet 3011 and the external air inlet structure 102 is long enough to ensure a sufficiently long air inlet channel 7.

[0096] The air inlet 3011 is arranged on the upper side near the air inlet channel 7, and the outer air inlet structure 102 is arranged on the lower side near the air inlet channel 7. The distance from the air inlet 3011 to the outer air inlet structure 102 is as long as possible, so that after the noise enters the air inlet channel 7 from the air inlet 3011, it needs to pass through a longer path in the air inlet channel 7 to reach the outer air inlet structure 102. Since the distance from the air inlet 3011 to the outer air inlet structure 102 is longer, the number of reflections of the noise sound waves in the air inlet channel 7 through the sound absorbing member 6 can be increased, thereby improving the noise absorption effect of the sound absorbing member 6, effectively reducing the noise generated by the gas water heater 3 during operation, and reducing the impact of the noise on the user. In addition, the outside air enters the gas water heater 3 from the air inlet 3011 at the top of the shell 301, and then the airflow flows downward from the top of the gas water heater 3. In the process of airflow, the electrical components inside the gas water heater 3 can be effectively cooled.

[0097] Specifically, the external air inlet structure 102 can be set in any existing shape such as a rectangle, a circle, a strip or a grille. In the embodiment of the present application, the shape of the external air inlet structure 102 is not specifically limited.

[0098] Exemplary, combined Figure 4 and Fig.10 As shown, the outer air inlet structure 102 extends to both sides of the back shell 1 along the width direction of the back shell 1, ensuring that the opening area of ​​the outer air inlet structure 102 is large enough to ensure the air intake of the gas water heater 3.

[0099] In one embodiment, in combination Figure 8 and Fig. 9 As shown, a support member 203 is provided in the central area of ​​the mesh plate 2 . The support member 203 is protruded toward the back side of the housing 301 , and an end of the support member 203 abuts against the back side of the housing 301 .

[0100] By setting a support member 203 in the central area of ​​the mesh plate 2, the support member 203 abuts against the back of the shell 301, thereby ensuring the stability of the overall structure of the mesh plate 2 and ensuring a constant distance from the mesh plate 2 to the back of the shell 301, thereby ensuring the smoothness of the air inlet channel 7 and avoiding compression or blockage of the air inlet channel 7 due to deformation of the central area of ​​the mesh plate 2.

[0101] Specifically, the support member 203 can be configured to be L-shaped, or can be configured to be a support column, etc. In the embodiment of the present application, the type of the support member 203 is not specifically limited.

[0102] The working principle of the gas water heater 3 in this embodiment is described as follows:

[0103] First, glue the sound absorbing component 6 to the mounting groove 101 of the back shell 1, align the mesh 2, the back shell 1 and the mounting holes 4 on the shell 301, and pass the fasteners 5 through the mounting holes 4 to fix the mesh 2 and the back shell 1 to the back of the shell 301.

[0104] During the operation of the gas water heater 3, outside air can enter the air inlet channel 7 from the external air inlet structure 102, and enter the air inlet 3011 of the gas water heater 3 along the path of the air inlet channel 7, to ensure air circulation inside the gas water heater 3 and ensure that the gas water heater 3 can fully burn.

[0105] During the operation of the gas water heater 3, part of the noise generated will be diffracted through the air inlet 3011 of the gas water heater 3. Since the air inlet 3011 of the gas water heater 3 is arranged on the upper side close to the air inlet channel 7, and the external air inlet structure 102 is arranged on the lower side close to the air inlet channel 7, after the noise enters the air inlet channel 7 from the air inlet 3011, it needs to pass through a longer path in the air inlet channel 7 to reach the external air inlet structure 102, which can increase the number of reflections of the noise sound waves through the sound absorbing component 6 in the air inlet channel 7, thereby improving the noise absorption effect of the sound absorbing component 6 and reducing the leakage of the internal noise of the gas water heater 3 from the external air inlet structure 102.

[0106] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] The specific contents of the above specific implementations only express several implementations of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A noise reduction component for a gas water heater (3), characterized in that: include: The back shell (1) is provided with a mounting groove (101) and an external air inlet structure (102); The mesh plate (2) is arranged in the installation groove (101), and the mesh plate (2) and the back shell (1) are both provided with installation holes (4), and the installation holes (4) on the mesh plate (2) correspond to the installation holes (4) on the back shell (1) one by one; the mesh plate (2) and the back shell (1) are sequentially extended into the corresponding installation holes (4) through fasteners (5) and threadedly cooperated with one of the installation holes (4) to realize a detachable connection between the mesh plate (2) and the back shell (1); A sound absorbing member (6) is sandwiched between the mesh plate (2) and the bottom surface of the mounting groove (101), the front surface of the sound absorbing member (6) faces away from the bottom surface of the mounting groove (101), an air inlet space (8) is left between the front surface of the sound absorbing member (6) and the opening (106) of the back shell (1), and the external air inlet structure (102) is connected to the air inlet space (8).

2. The noise reduction assembly according to claim 1, characterized in that: The back shell (1) is provided with a first flange (103) arranged around its outer edge, and the mesh plate (2) is provided with a second flange (201) arranged around its outer edge. Both the first flange (103) and the second flange (201) are provided with at least two mounting holes (4).

3. The noise reduction assembly according to claim 2, characterized in that: The back shell (1) comprises a back plate (104) and a side wall (105) arranged around the circumference of the back plate (104); the first flange (103) is arranged around the side wall (105); and the mounting groove (101) is formed between the side wall (105) and the back plate (104).

4. The noise reduction assembly according to claim 3, characterized in that: The area of ​​the mesh plate (2) matches the area of ​​the back plate (104).

5. The noise reduction assembly according to claim 1, characterized in that: The sound absorbing member (6) is bonded and fixed to the bottom surface of the installation groove (101), and the coverage area of ​​the sound absorbing member (6) is matched to the bottom surface area of ​​the installation groove (101).

6. The noise reduction assembly according to any one of claims 1 to 5, characterized in that: The mesh plate (2) is provided with a plurality of strip-shaped holes (202), and the length direction of the strip-shaped holes (202) is consistent with the length direction of the mesh plate (2).

7. A gas water heater, characterized in that: include: The housing (301) is provided with an air inlet (3011) and a mounting hole (4); According to any one of claims 1 to 6, the mounting holes (4) on the shell (301), the mounting holes (4) on the mesh plate (2) and the mounting holes (4) on the back shell (1) correspond to each other; the mesh plate (2), the back shell (1) and the shell (301) are sequentially extended into the corresponding mounting holes (4) through fasteners (5) and are detachably connected to one of the mounting holes (4); An air inlet channel (7) is left between the sound absorbing component (6) and the back side of the shell (301), and the air inlet (3011) is connected to the external air inlet structure (102) through the air inlet channel (7).

8. The gas water heater according to claim 7, characterized in that: The coverage area of ​​the sound absorbing member (6) is adapted to the back surface area of ​​the shell (301).

9. The gas water heater according to claim 7, characterized in that: The air inlet (3011) is arranged on the upper side of the back side of the shell (301), and the external air inlet structure (102) is located on the lower side of the back side of the shell (301).

10. The gas water heater according to claim 7, characterized in that: A support member (203) is provided in the central area of ​​the mesh plate (2) protruding toward the back side of the shell (301), and the support member (203) abuts against the back side of the shell (301).

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