Air intake components and water heater

Abstract

This invention proposes an air intake assembly and a water heater. The air intake assembly includes: a housing, the housing including a silencing cavity; an air inlet disposed on the housing and connected to the silencing cavity; a vent disposed on the housing and connected to the silencing cavity; and an air guide plate disposed on the housing, located inside the silencing cavity, opposite to the air inlet, and used for airflow guidance. The air intake assembly provided in this application, by distributing an air guide plate opposite to the air inlet within the silencing cavity, cuts off the direct connection between the air inlet and the vent. This allows noise from the gas water heater during operation to enter the silencing cavity through the vent and radiate to the air guide plate. The air guide plate then prevents some noise from escaping through the air inlet, thus extending the radiation path of the generated noise to the outside and significantly attenuating the noise after being blocked, thereby achieving the purpose of noise reduction.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to an air intake assembly and a water heater. Background Art

[0002] In related technologies, gas water heaters need to draw air through the air intake duct to participate in combustion during the heating process. The air intake duct also becomes the main way for combustion noise to radiate outward, and the resulting operating noise affects the customer's user experience. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, one object of the present invention is to provide an air intake assembly.

[0005] Another object of the present invention is to provide a water heater.

[0006] In view of this, according to the first objective of the present invention, an air intake assembly is provided, the air intake assembly comprising: a housing, the housing including a silencing cavity; an air inlet disposed on the housing and communicating with the silencing cavity; a vent disposed on the housing and communicating with the silencing cavity; and an air guide plate disposed on the housing and located inside the silencing cavity, the air guide plate being disposed opposite to the air inlet and the air guide plate being used for airflow guidance.

[0007] The air intake assembly provided by this invention includes a housing and an air guide plate disposed within the housing. The housing includes a silencing cavity, an air inlet, and a vent. Both the air inlet and the vent are connected to the silencing cavity. The air guide plate is disposed on the housing, located within the silencing cavity, and positioned opposite the air inlet; it serves to guide airflow. The air intake assembly provided by this application, by distributing an air guide plate opposite the air inlet within the silencing cavity, cuts off the direct connection between the air inlet and the vent. During operation, noise from the gas water heater enters the silencing cavity through the vent and radiates to the air guide plate. The air guide plate then prevents some noise from escaping through the air inlet. This significantly extends the radiation path of the generated noise to the outside, and after being blocked, the noise radiated to the outside is greatly attenuated, thereby reducing noise and improving user comfort.

[0008] In addition, the air intake component in the above-mentioned technical solution provided by the present invention may also have the following additional technical features:

[0009] In the above technical solution, the air guide plate is located between the air inlet and the ventilation opening.

[0010] In this technical solution, the specific location of the air guide plate is defined, situated between the air inlet and the vent. This allows air to flow in through the air inlet, be blocked by the air guide plate, and then bypass the air before entering the vent, thus serving a guiding function. Furthermore, noise enters the silencing cavity from the vent and radiates to the air guide plate. The air guide plate then prevents some of the noise from escaping through the air inlet, significantly extending the radiation path of the generated noise as it radiates to the outside, thereby greatly attenuating the noise reaching the outside and achieving the goal of noise reduction.

[0011] In any of the above technical solutions, the ratio of the area of ​​the vent directly connected to the air inlet to the area of ​​the air inlet is less than or equal to 0.3.

[0012] In this technical solution, noise is radiated outward through the air intake assembly, which can be regarded as a secondary radiation source. The air inlet of the air intake assembly can be regarded as a radiation outlet. The vent, through the air guide plate, cuts off the direct connection between the secondary radiation source and the noise radiation outlet, i.e., the vent and the air inlet, when the noise is radiated outward. The noise radiates to all directions through the vent, forming a shadow area behind the air guide plate. The sound wave needs to be reflected at least once to reach the shadow area. The ratio of the area of ​​the vent directly connected to the air inlet through the air guide plate to the area of ​​the air inlet is less than or equal to 0.3, that is, the overlapping area of ​​the two vents is less than or equal to 0.3, so that the air inlet is located in the shadow area as much as possible, reducing the exposed area directly corresponding to the vent, and making the direct noise transmission area less than or equal to 30% of the air inlet area, thereby reducing the proportion of noise directly transmitted through the air inlet.

[0013] In any of the above technical solutions, the area of ​​the air inlet is within the range of 2000 mm². 2 Up to 5000mm 2 The area of ​​the ventilation opening is within the range of 3000 mm². 2 Up to 8000mm 2 .

[0014] In this technical solution, the area of ​​the air inlet is limited to a range of 2000 mm². 2 Up to 5000mm 2 The area of ​​the ventilation opening is within the range of 3000 mm². 2 Up to 8000mm 2 The overlap area between the air inlet and the vent should not exceed 30% of the total air inlet area. The specific value can be determined based on the different volumes of the equipment. Different volumes correspond to different gas volumes, and different gas volumes require different amounts of air for combustion. Therefore, the air inlet area should be set to meet the requirements. This ensures that while meeting air intake needs, noise radiation is blocked to the greatest extent possible.

[0015] In any of the above technical solutions, the air guide plate includes: a first plate body, which is disposed on the housing and is disposed opposite to the air inlet.

[0016] In this technical solution, the air guide plate includes a first plate disposed on the housing. Specifically, the first plate is disposed opposite to the air inlet, wherein the first plate and the vent are located on opposite side walls of the housing, making the air intake process a secondary air intake. The first baffle prevents the air inlet and the vent from being directly exposed to each other, severing the direct connection between them. While guiding the air inflow, it can also isolate the outward radiation of noise.

[0017] In any of the above technical solutions, the air guide plate includes: a second plate body, which is disposed on the housing and located on at least one side of the first plate body.

[0018] In this technical solution, the air guide plate includes a second plate, which, along with the first plate, is disposed on the housing. The second plate and the first plate work together to guide the airflow in while better blocking the transmission of noise. The second plate is located on at least one side of the first plate. In actual processing, it can be disposed on one or both sides of the first plate. Any connection method that can guide the airflow in while better blocking the transmission of noise is within the protection scope of this application.

[0019] In any of the above technical solutions, the second plate includes an arc-shaped plate, which is connected to at least one end of the first plate.

[0020] In this technical solution, the second plate includes an arc plate, which is a curved plate with a certain radius and arc length. It has higher strength to withstand deformation and a stronger design sense. The arc plate is connected to at least one end of the first plate to achieve the same effect as the first plate. On the one hand, it increases the contact area with the airflow and changes the contact angle with the airflow to better guide the airflow. On the other hand, the noise propagation path is longer, so that the noise propagates in the silencing cavity for a longer time and the intensity attenuation is greater.

[0021] In any of the above technical solutions, the first plate and the second plate are both straight plates; wherein, the first plate and the second plate are spaced apart along the extension direction perpendicular to the first plate.

[0022] In this technical solution, both the first plate and the second version are designed as straight plates, which are simple in structure and easy to install in the silencing cavity. Specifically, the first plate and the second plate are spaced apart along the extension direction perpendicular to the first plate, realizing the combined use of the two plates. A flow channel is formed between the first plate and the second plate, allowing the airflow to advance in an S-shaped path within the silencing cavity. This increases the contact area with the airflow, reduces the overlap area between the air inlet and the vent, and increases the distance of noise propagation. The noise travels for a longer time within the cavity, and after multiple reflections, it reaches the noise at the air inlet located in the shaded area. The intensity attenuation is greater, achieving a better noise reduction effect.

[0023] In any of the above technical solutions, the first plate and the second plate are both straight plates, and the second plate is connected to at least one end of the first plate; wherein the extension direction of the first plate and the extension direction of the second plate form an angle, and the opening of the angle faces the ventilation opening side.

[0024] In this technical solution, both the first plate and the second plate are straight plates. Specifically, the second plate can be located at one end of the first plate, or both ends of the first plate can be equipped with a second plate. Further, the extending directions of the first and second plates form an angle, i.e., the first and second plates form a bent structure, with the opening of the angle facing the ventilation opening. This creates a trumpet-shaped structure, which guides the airflow and, with the trumpet-shaped opening facing the ventilation opening, maximizes noise reduction by increasing the noise radiation path and achieving better noise reduction.

[0025] In any of the above technical solutions, the second plate includes a bent plate, one end of which is connected to one end of the first plate, and the other end of which extends toward the other end of the first plate.

[0026] In this technical solution, the second plate includes a bent plate, one end of which is connected to one end of the first plate, and the other end extends toward the other end of the first plate, i.e., the bent plate is V-shaped. One end of the V-shape is connected to the end of the first plate, and the other end of the V-shape is a free end. By providing a bent plate at at least one end of the first plate, a tortuous flow channel is formed between the air guide plate and the shell, thereby increasing the propagation path of noise during radiation to the outside. The propagation intensity of noise is reduced by using reflection, further reducing the area of ​​direct connection between the air inlet and the ventilation opening, and reducing direct noise transmission.

[0027] In any of the above technical solutions, there are multiple first plates, which are spaced apart and are inclined relative to the side wall of the shell.

[0028] In this technical solution, multiple first plates are spaced apart and inclined, forming multiple flow channels between them. Furthermore, by being inclined on the housing, the extension direction of the flow channels is also inclined relative to the direction from the air inlet to the ventilation outlet, thus creating multiple barriers between the ventilation outlet and the air inlet, thereby better blocking noise while guiding airflow.

[0029] In any of the above technical solutions, the first plate body includes an arc plate or a bent plate.

[0030] In this technical solution, the multiple first plates can be curved plates or bent plates. On the one hand, the inclusion of curved plates in the first plates increases the strength to withstand deformation, thereby increasing the distance noise travels within the anechoic chamber after exiting the vent and reducing the intensity of noise propagation. On the other hand, the inclusion of bent plates in the first plates, with the angle of the bent plates specifically set according to the air demand, extends the noise propagation path and reduces the intensity of noise propagation through reflection.

[0031] In any of the above technical solutions, the mounting part is disposed on the housing and located in the silencing cavity, and the first plate is located on both sides of the mounting part; wherein the first plate located on both sides of the mounting part is symmetrically distributed about the axis of the mounting part.

[0032] In this technical solution, a mounting section is provided, which is installed on the housing for mounting the flue pipe. Furthermore, first plates are distributed on both sides of the mounting section, and the first plates on both sides are symmetrically distributed with respect to the midline of the mounting section, thereby balancing the gas flow on both sides of the mounting section and effectively blocking noise.

[0033] According to a second objective of the present invention, a water heater is provided, comprising: an air intake assembly as described in any of the above technical solutions; and a housing, wherein the air intake assembly is disposed on the housing.

[0034] The water heater provided by this invention includes an air intake component of any of the above-mentioned technical solutions, and the air intake component is disposed on the casing. The air intake component is used to provide airflow into the casing. Therefore, it has all the beneficial effects of the air intake component in any of the above-mentioned technical solutions, which will not be elaborated here.

[0035] In the above technical solution, the enclosure includes: an air inlet, which is located at the top of the enclosure; an air intake assembly is located at the air inlet; and a vent is connected to the air inlet.

[0036] In this technical solution, the air inlet is located at the top of the housing, and the air intake component is located at the air inlet. That is, the air inlet is located at the top of the housing, and the air inlet is far away from the combustion chamber. At the same time, the vent is connected to the air inlet. The water heater using this air intake component has low operating noise, which greatly improves the comfort of the living environment and brings a better user experience.

[0037] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0039] Figure 1 A schematic diagram of the intake assembly is shown in a first aspect embodiment of the present invention.

[0040] Figure 2 Show Figure 1 A schematic diagram of the assembled intake assembly of the embodiment shown.

[0041] Figure 3 Show Figure 1 A schematic diagram of the intake assembly from another perspective of the embodiment shown.

[0042] Figure 4 Show Figure 2 A schematic diagram of the intake assembly from another perspective of the embodiment shown.

[0043] Figure 5 Show Figure 2 Front view of the air intake assembly in the illustrated embodiment.

[0044] Figure 6 Show Figure 2 Rear view of the air intake assembly in the illustrated embodiment.

[0045] Figure 7 Show Figure 2 Right view of the intake assembly of the illustrated embodiment.

[0046] Figure 8 It shows Figure 2 A top view of the air intake assembly in the illustrated embodiment.

[0047] Figure 9 It shows Figure 2 A bottom view of the air intake assembly of the embodiment shown.

[0048] Figure 10 It shows Figure 1 A schematic diagram of the arrangement of the air guide vanes in the air intake assembly of the embodiment shown.

[0049] Figure 11 A schematic diagram of the arrangement of the air guide plate in the air intake assembly according to another embodiment of the present invention is shown.

[0050] Figure 12 A schematic diagram of the arrangement of the air guide plate in the air intake assembly according to another embodiment of the present invention is shown.

[0051] Figure 13 A schematic diagram of the arrangement of the air guide plate in the air intake assembly according to another embodiment of the present invention is shown.

[0052] Figure 14 A schematic diagram of the arrangement of the air guide plate in the air intake assembly according to another embodiment of the present invention is shown.

[0053] Figure 15 A schematic diagram of the arrangement of the air guide plate in the air intake assembly according to another embodiment of the present invention is shown.

[0054] Figure 16 A schematic diagram of the arrangement of the air guide plate in the air intake assembly according to another embodiment of the present invention is shown.

[0055] Figure 17 A schematic diagram of the noise radiation of the intake assembly of the present invention is shown.

[0056] Figure 18 An exploded view of a water heater according to an embodiment of the present invention is shown.

[0057] Figure 19 Show Figure 18 The diagram shows the structure of a water heater without its control panel.

[0058] Figure 20 Show Figure 19 The front view of the embodiment shown.

[0059] Figure 21 Show Figure 19 Left view of the embodiment shown.

[0060] Figure 22 Show Figure 19 Right view of the embodiment shown.

[0061] Figure 23 Show Figure 19 Top view of the embodiment shown.

[0062] Figure 24 Show Figure 19 Rear view of the embodiment shown.

[0063] Figure 25 Show Figure 18 The diagram shows the structural arrangement of the flue gas pipe sealing ring in the water heater of the embodiment shown.

[0064] Figure 26 A schematic diagram showing the arrangement structure of the flue gas sealing ring according to another embodiment of the present invention is provided.

[0065] Figure 27A schematic diagram showing the arrangement structure of the flue gas sealing ring according to another embodiment of the present invention is provided.

[0066] in, Figures 1 to 27 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0067] 1. Water heater, 10. Air intake assembly, 12. Housing, 102. Cover, 104. Top sealing plate, 122. Silencing chamber, 124. First side wall, 126. Second side wall, 128. Mounting part, 14. Air inlet, 16. Ventilation outlet, 18. Air guide plate, 182. First plate, 184. Second plate, 20. Housing, 202. Back plate, 204. Front panel, 206. Molding cavity, 208. Sealing ring. Detailed Implementation

[0068] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0069] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0070] The following reference Figures 1 to 27 The air intake assembly 10 and the water heater 1 are described according to some embodiments of the present invention.

[0071] like Figures 1 to 17 As shown, one embodiment of the present invention provides an air intake assembly 10. As Figures 1 to 9 As shown, the air intake assembly 10 includes: a housing 12, an air inlet 14, a vent 16, and an air guide plate 18.

[0072] The housing 12 includes a silencing cavity 122; an air inlet 14 and a vent 16 are both disposed on the housing 12, and the air inlet 14 and the vent 16 are both connected to the silencing cavity 122 of the housing 12; a guide plate 18 is disposed in the silencing cavity 122, and the guide plate 18 is disposed opposite to the air inlet 14, and the guide plate 18 is used for airflow guidance.

[0073] The air intake assembly 10 provided by the present invention includes a housing 12 and an air guide plate 18 disposed within the housing 12. The housing 12 includes a silencing cavity 122, an air inlet 14, and a vent 16. Both the air inlet 14 and the vent 16 communicate with the silencing cavity 122. The air guide plate 18 is disposed on the housing 12, located within the silencing cavity 122, and is positioned opposite the air inlet 14; it is used for airflow guidance. The air intake assembly 10 provided in this application has an air guide plate 18 disposed in the silencing cavity 122 opposite to the air inlet 14. The air guide plate 18 cuts off the direct connection between the air inlet 14 and the vent 16, so that when the gas water heater 1 is working, the noise enters the silencing cavity 122 from the vent 16 and is radiated to the air guide plate 18. Then, the air guide plate 18 prevents some of the noise from being transmitted through the air inlet 14. As a result, the radiation path of the generated noise is greatly extended during the radiation to the outside, and the noise radiated to the outside is greatly attenuated after being blocked, so as to reduce the noise and improve the user's comfort.

[0074] Specifically, external air enters the silencing cavity 122 through the air inlet 14 of the housing 12, and is guided by the air guide plate 18 to flow out through the vent 16. By setting the air guide plate 18, a flow channel is formed between the air guide plate 18 and the housing 12. By setting the air guide plate 18 at a position opposite to the air inlet 14, the formed flow channel is tortuous. The tortuous flow channel increases the radiation path of noise entering the silencing cavity 122 from the vent 16. By extending the noise radiation path, the noise attenuation rate is enhanced. At the same time, the air guide plate 18 can also reflect and block some noise, further reducing the propagation of noise and achieving the purpose of optimizing noise reduction.

[0075] In the above embodiments, further, as Figure 1 As shown, the housing 12 includes a first sidewall 124 and a second sidewall 126. An air inlet 14 is formed on the first sidewall 124, and a vent 16 is formed on the second sidewall 126. The first sidewall 124 and the second sidewall 126 are two adjacent sidewalls of the housing 12, and the vent 16 is located on the side of the second sidewall 126 away from the air inlet 14.

[0076] Specifically, the first sidewall 124 and the second sidewall 126 are two adjacent sidewalls of the housing 12. The air inlet 14 is located on the first sidewall 124, and the vent 16 is located on the second sidewall 126, forming two air vents. This significantly extends the radiation path of noise during the process of air intake and ventilation, resulting in a unique noise reduction performance advantage. Furthermore, by placing the vent 16 on the side of the second sidewall 126 away from the air inlet 14, the vent 16 is positioned further away from the air inlet 14, creating a longer flow channel between the air inlet 14 and the vent 16. This reduces the area of ​​the area directly connected to the air inlet 14 and the vent 16, further reducing noise propagation.

[0077] Furthermore, taking the housing 12 as a hexahedron as an example, the housing 12 includes six side walls. The air inlet 14 and the vent 16 can be located on any two side walls, which can be two adjacent side walls or two opposite side walls. Specifically, the configuration can be made according to the application scenario of the air intake assembly 10.

[0078] Furthermore, the housing 12 includes a cover 102 and an upper sealing plate 104. The first side wall 124 is any side wall of the cover 102, the second side wall 126 is the upper sealing plate 104, the air inlet 14 is opened on the side wall of the cover 102, and the ventilation port 16 is opened on the upper sealing plate 104. The cover 102 and the upper sealing plate 104 form a sound-absorbing cavity 122. By setting the housing 12 as a split cover 102 and upper sealing plate 104, it is convenient to install and disassemble, and there is no need to make too many modifications to the traditional water heater tank, thus reducing production costs.

[0079] Furthermore, the upper sealing plate 104 can be configured as an integral structure with the box body 20, or the cover 102 can be configured as an integral structure with the box body. The specific configuration method can be limited according to the actual product structure.

[0080] In any of the above embodiments, further, as Figure 1 As shown, the air guide plate 18 is positioned between the air inlet 14 and the vent 16. By specifically positioning the air guide plate 18 between the air inlet 14 and the vent 16, the air flowing into the air inlet 14 is blocked by the air guide plate 18, causing the air to bypass and enter the vent 16, thus serving a guiding function. Furthermore, noise enters the silencing cavity 122 from the vent 16 and is radiated to the air guide plate 18. The air guide plate 18 then prevents some of the noise from being transmitted through the air inlet 14, significantly extending the radiation path of the generated noise during its radiation to the outside, thereby greatly attenuating the noise radiated to the outside and achieving the purpose of noise reduction.

[0081] In any of the above embodiments, the ratio of the area directly connected to the vent 16 to the area of ​​the air inlet 14 is less than or equal to 0.3.

[0082] In this embodiment, noise is radiated outward through the air intake assembly 10, which can be regarded as a secondary radiation source. The air inlet 14 of the air intake assembly 10 can be regarded as a radiation outlet. The vent 16, through the air guide plate 18, cuts off the direct connection between the secondary radiation source and the noise radiation outlet, i.e., the vent 16 and the air inlet 14, when the noise is radiated outward. The noise is radiated to all directions through the vent 16, forming a shadow area behind the air guide plate 18. The sound wave needs to be reflected at least once to reach the shadow area.

[0083] Specifically, if Figure 17As shown, noise radiates into the silencing cavity 122 through the vent 16. Part of the air inlet 14 is blocked by the air guide plate 18, while another part of the area is directly connected to the vent 16, forming a... Figure 17 The straight-through area S1 shown is determined by setting the position of the air guide plate 18 and the area of ​​the side opposite to the air inlet 16, so that the ratio of the straight-through area S1 to the total area of ​​the air inlet 14 is less than or equal to 0.3. This makes the air inlet 14 located as much as possible in the shaded area in the figure, reducing the exposed area directly corresponding to the air inlet 16, thereby reducing the proportion of noise directly transmitted through the air inlet 14.

[0084] Furthermore, the area of ​​the air inlet 14 is within the range of 2000 mm². 2 Up to 5000mm 2 The area of ​​ventilation opening 16 is within the range of 3000 mm². 2 Up to 8000mm 2 .

[0085] The area of ​​the air inlet 14 was limited to a range of 2000 mm². 2 Up to 5000mm 2 The area of ​​vent 16 is within the range of 3000 mm². 2 Up to 8000mm 2 The overlapping area of ​​the air inlet 14 and the vent 16 shall not exceed 30% of the total area of ​​the air inlet 14. The specific value can be determined according to the different volumes of the equipment. Different volumes correspond to different gas volumes, and different gas volumes correspond to different amounts of air required for combustion. Thus, the area of ​​the air inlet 14 is set to meet the requirements. This ensures that the air intake requirements are met while maximizing the prevention of noise radiation.

[0086] In one embodiment of the present invention, further, as Figures 10 to 16 As shown, where, Figures 10 to 16 The arrows in the diagram indicate the direction of airflow. The air guide plate 18 includes a first plate 182. The first plate 182 is disposed on the housing 12 and is positioned opposite to the air inlet 14.

[0087] Specifically, if Figure 11 As shown, the air guide plate 18 includes a first plate 182 disposed on the housing 12. By positioning the first plate 182 opposite to the air inlet 14, as... Figure 11As shown, the arrows indicate the airflow direction. After the airflow enters through the air inlet 14, it is blocked by the first plate 182 and flows to both sides along the first plate 182. This forms a tortuous flow channel with the housing 12, effectively blocking and reflecting noise entering through the vent 16, and extending the noise propagation path, thus achieving effective noise attenuation and isolation, and ultimately noise reduction. Furthermore, by placing the first plate 182 on the sidewall opposite the vent 16, the layout space of the first plate 182 is increased, allowing for various arrangement methods to achieve the best noise reduction effect. In one embodiment of the invention, further, as... Figure 10 , Figure 12 , Figure 13 and Figure 14 As shown, the air guide plate 18 includes: a first plate body 182 and a second plate body 184.

[0088] Specifically, both the first plate 182 and the second plate 184 are disposed on the housing 12. The first plate 182 is disposed at a position opposite to the air inlet 14, and the second plate 184 is disposed on at least one side of the first plate 182. The second plate 184 and the first plate 182 cooperate to achieve the effect of guiding airflow in while better blocking noise transmission.

[0089] Specifically, there is one second plate 184, which is connected to one end of the first plate 182. Alternatively, there are two second plates 184, which are respectively connected to both ends of the first plate 182. By setting the second plate 184 at one or both ends of the first plate 182, the airflow path of the air guide plate 18 is extended, and the noise blocking area is increased, thereby improving the noise reduction effect.

[0090] Specifically, the first plate 182 and the second plate 184 can be an integrated structure or a separate structure. The specific structure and arrangement can be set according to the space of the silencing cavity 122 in order to achieve the best noise reduction effect.

[0091] In one embodiment of the present invention, further, as Figure 13 As shown, the second plate 184 includes an arc-shaped plate.

[0092] Specifically, the arc-shaped plate is disposed on one or both sides of the first plate 182. By using the arc-shaped plate, the curved characteristics of the plate are utilized to achieve a better airflow guiding effect, while the arc-shaped plate has higher strength to withstand deformation. The combined use of the arc-shaped plate and the first plate 182 increases the contact area with the airflow, thus better guiding the airflow. On the other hand, the noise propagation path is longer, increasing the noise propagation path within the silencing cavity 122 and resulting in greater noise intensity attenuation.

[0093] In one embodiment of the present invention, the air guide plate 18 further includes: a first plate body 182 and a second plate body 184. The first plate body 182 is a straight plate, and the second plate body 184 is also configured as a straight plate.

[0094] Specifically, if Figure 10 As shown, by setting both the first plate 182 and the second plate 184 as straight plates, the structure is simple and easy to install in the silencing cavity 122. Furthermore, along the extension direction perpendicular to the first plate 182, the first plate 182 and the second plate 184 are spaced apart, with the second plate 184 positioned closer to the vent 16. That is, along the direction from the air inlet 14 to the vent 16, there is a certain distance between the first plate 182 and the second plate 184. This certain distance forms a flow channel for airflow, such as... Figure 10 As shown, the arrows indicate the direction of airflow. During the intake process, the airflow enters the silencing cavity 122 through the air inlet 14. After being blocked by the first plate 182, it flows along the length of the first plate 182 to both sides. After flowing out of the first plate 182, it is blocked by the second plate 184 as it flows towards the vent 16. It then flows towards the gap between the first plate 182 and the second plate 184, and then flows towards the vent 16. Under the combined action of the first plate 182 and the second plate 184, the airflow moves in an S-shaped path within the silencing cavity 122, reducing the overlap area between the air inlet 14 and the vent 16, increasing the noise propagation path. The noise propagates within the cavity for a longer time and takes multiple reflections to reach the noise located in the shaded area of ​​the air inlet 14. The noise intensity is attenuated more, achieving a better noise reduction effect.

[0095] In one embodiment of the present invention, the air guide plate 18 further includes: a first plate body 182 and a second plate body 184. Both the first plate body 182 and the second plate body 184 are configured as straight plates.

[0096] Specifically, if Figure 12 As shown, the air guide plate 18 includes a first plate 182 and a second plate 184 connected to each other. An angle is formed between the first plate 182 and the second plate 184, and the second plate 184 extends towards the ventilation opening 16. By setting the first plate 182 and the second plate 184 to form an angle, that is, by forming a bent structure with the opening of the angle facing towards the ventilation opening 16, as shown... Figure 12As shown, the arrows indicate the direction of airflow. After entering through the air inlet 14, the airflow passes through the first plate 182 and the second plate 184 and flows along the bent structure. On the one hand, the bent structure guides the airflow. On the other hand, the increased length of the bent air guide plate 18 and the increased surface area of ​​the air guide plate facing the vent 16 maximize the blocking effect on noise, further extending the noise radiation path and the noise blocking effect, thus achieving a better noise reduction effect.

[0097] Furthermore, there are two second plates 184, each connected to one end of the first plate 182, thus forming a trumpet-shaped structure. On one hand, the trumpet-shaped structure guides the airflow. On the other hand, the trumpet-shaped opening faces the vent 16, increasing the noise-blocking area and allowing the air guide plate 18 to block noise to the maximum extent. This also increases the noise radiation path, enhances noise attenuation, and achieves better noise reduction.

[0098] In one embodiment of the present invention, further, as Figure 14 As shown, the air guide plate 18 includes a first plate body 182 and a second plate body 184. The second plate body 184 includes a bent plate, one end of which is connected to one end of the first plate body 182, and the other end of which extends toward the other end of the first plate body 182.

[0099] In this embodiment, the structure of the first plate 182 can be a straight plate, an arc-shaped plate, or a bent plate. The second plate 184 is configured as a bent plate. By configuring the second plate 184 as a whole as a bent plate, and connecting the second plate 184 to the end of the first plate 182, during the intake process, the airflow enters from the air inlet 14 and flows along the first plate 182 to the second plate 184, and continues to flow along the structure of the second plate 184 to the vent 16. That is, by configuring the second plate 184 as a bent plate, the airflow path is extended, which also extends the propagation path of noise radiation, thereby increasing the attenuation of noise during propagation. Furthermore, the bent plate is disposed on one or both sides of the first plate 182, increasing the shielding area of ​​the air guide plate 18 for noise radiation through the vent 16, that is, reducing the area directly connected between the vent 16 and the air inlet 14, further enhancing the noise reduction effect.

[0100] Specifically, the bent plate is shaped like a "V", "U", or "W". By setting a bent plate at at least one end of the first plate 182, a tortuous flow channel is formed between the air guide plate 18 and the shell 12, thereby increasing the propagation path of combustion noise during radiation to the outside. The reflection reduces the propagation intensity of the noise, further reducing the area of ​​direct connection between the air inlet 14 and the vent 16, and reducing direct noise transmission. The specific structural settings are determined according to the specific product characteristics and are not limited here.

[0101] In one embodiment of the present invention, further, as Figure 15 and Figure 16 As shown, the air guide plate 18 includes a plurality of first plates 182, which are spaced apart along a direction parallel to the surface of the side wall where the air inlet 14 is located, and the first plates 182 are inclined relative to the side wall where the air inlet 14 is located.

[0102] Specifically, by arranging multiple first plates 182 at intervals along a direction parallel to the surface of the side wall where the air inlet 14 is located, and by arranging the multiple first plates 182 at an incline relative to the side wall where the air inlet 14 is located, multiple flow channels are formed between the multiple first plates 182. Furthermore, by arranging them at an incline on the housing 12, the extension direction of the flow channels is also inclined relative to the direction from the air inlet 14 to the ventilation opening 16, thereby creating multiple barriers between the ventilation opening 16 and the air inlet 14, which can better block noise while guiding the airflow in.

[0103] Furthermore, the multiple first plates 182 can be curved plates or bent plates. On the one hand, such as Figure 15 As shown, the first plate 182 includes an arc-shaped plate, which increases the strength to withstand deformation, increases the distance noise travels within the silencing cavity 122 after exiting the vent 16, and reduces the intensity of noise propagation. On the one hand, as... Figure 16 As shown, the first plate 182 includes a bent plate. The angle of the bent plate can be set according to the air demand to extend the noise propagation path and reduce the noise propagation intensity by using reflection.

[0104] In any of the above embodiments, further, as Figures 10 to 16 As shown, the intake assembly 10 also includes a mounting portion 128, which is located inside the muffler cavity 122.

[0105] Specifically, the first plate 182 is disposed between the mounting part 128 and the air inlet 14. The length of the first plate 182 is greater than the width of the mounting part 128, thereby achieving the function of guiding the air intake and blocking the propagation of noise through the first plate 182.

[0106] Specifically, the first plate 182 is disposed on both sides of the mounting part 128, and one end of the first plate 182 is connected to the mounting part 128. Thus, the first plate 182 and the mounting part 128 together form a shielding wall to guide the airflow entering the air inlet 14 and to block the noise radiated by the vent 16.

[0107] Specifically, there are multiple first plates 182, which are distributed on both sides of the mounting portion 128. The first plates 182 distributed on both sides of the mounting portion 128 are symmetrically distributed around the central axis of the mounting portion 128, thereby balancing the gas flow on both sides of the mounting portion 128 and effectively blocking noise. The mounting portion 128 has a cylindrical structure, and the central hole of the cylindrical structure serves as the mounting hole for the smoke pipe.

[0108] Furthermore, such as Figures 25 to 27 As shown, it also includes a sealing ring 208, which is fitted onto the flue and used to seal the gap between the flue and the mounting hole. Furthermore, the sealing ring 208 prevents noise from propagating to the outside through the through hole, further reducing noise.

[0109] like Figures 18 to 27 As shown, one embodiment of the present invention provides a water heater 1, including: an air intake assembly 10 as in any of the above embodiments; and a housing 20, wherein the air intake assembly 10 is disposed on the housing 20.

[0110] The water heater 1 provided by the present invention includes an air intake component 10 according to any of the above embodiments, and the air intake component 10 is disposed on the housing 20. The air intake component 10 is used to provide airflow into the housing 20.

[0111] Specifically, if Figures 18 to 24 As shown, the air intake assembly 10 is connected to the housing 20, thereby supplying the air required for operation into the housing 20. Simultaneously, the air intake assembly 10 effectively reduces noise generated inside the housing 20 during operation. Noise inside the housing 20 enters the silencing cavity 122 through the vent 16 and radiates to the air guide plate 18. The air guide plate 18 then prevents some noise from escaping through the air intake 14. This significantly extends the radiation path of the generated noise to the outside, and the noise is greatly attenuated after being blocked, thus reducing noise and improving user comfort.

[0112] In the above embodiment, the housing 20 further includes an air inlet.

[0113] The air inlet is located at the top of the housing 20, the air intake assembly 10 is located at the air inlet, and the vent 16 is connected to the air inlet.

[0114] In this embodiment, the air inlet is located at the top of the housing 20. By placing the air inlet assembly 10 at the air inlet, the air inlet 14 is positioned far from the working chamber, increasing the propagation path of noise inside the housing 20. Simultaneously, the vent 16 is connected to the air inlet, further reducing the noise generated during operation through the air inlet assembly 10. This results in lower operating noise for the water heater 1 using the air inlet assembly 10, significantly improving the comfort of the living environment and providing a better user experience.

[0115] Furthermore, such as Figure 18 As shown, the enclosure 20 includes a back panel 202 and a front panel 204, wherein the back panel 202 is used for the side of the equipment facing the mounting surface, and the front panel 204 is disposed opposite to the back panel 202. Specifically, as... Figure 18 and Figure 24 As shown, in this application, the air inlet 14 is removed from the back panel 202, and the back panel 202 is provided with a molding cavity 206 for setting sound-absorbing material. By removing the air inlet 14, the space for setting sound-absorbing material is increased, thereby enhancing the noise reduction effect. Furthermore, sound-absorbing material is also provided on the panel 204 to achieve multi-directional noise reduction.

[0116] Specifically, sound-absorbing materials include sound-absorbing cotton. Specific Implementation

[0118] This embodiment provides a gas water heater 1. For example... Figures 18 to 27 As shown, the gas water heater 1 includes a housing 20 and an air intake assembly 10. The air intake assembly 10 includes a shell 12 and an air guide plate 18. The shell 12 includes a cover 102 and an upper sealing plate 104. An air inlet 14 is provided on the side wall of the cover 102, and a vent 16 is provided on the upper sealing plate 104. The air guide plate 18 is provided on the cover 102. The vent 16 is located on the side away from the air inlet 14. The air intake assembly 10 is located on the top of the housing 20.

[0119] Specifically, during operation, air flows into the housing 12 from the air inlet 14 of the cover 102, then bypasses the air guide plate 18 and enters the water heater 1 through the vent 16 of the upper sealing plate 104. Compared to the traditional back-mounted direct air intake design of the water heater 1, the top-mounted air intake is further away from the noise source, resulting in a longer noise transmission path and greater noise intensity attenuation. This design utilizes the cover 102 of the water heater 1 to form two air inlets 14, which can isolate noise while allowing air to enter and ventilate, offering a unique noise reduction performance advantage. In addition, this design incorporates an air guide plate 18 inside the cover 102, which guides airflow while further blocking noise.

[0120] like Figures 10 to 16The diagram shows various air distribution schemes. Different air distribution schemes differ in terms of flow resistance and sound insulation performance, and adjustments and choices need to be made based on the overall performance requirements of the machine.

[0121] Furthermore, the air inlet 14 has an area of ​​2000 mm². 2 Up to 5000mm 2 Between, the area of ​​ventilation opening 16 is 3000mm² 2 Up to 8000mm 2 Between. When noise is radiated outward through the air intake assembly 10, the upper sealing plate 104 can be regarded as a secondary radiation source, and the air inlet 14 of the cover 102 can be regarded as a radiation outlet. The air guide plate 18 is used to cut off the secondary radiation source and the noise radiation outlet, that is, the direct connection between the ventilation port 16 of the upper sealing plate 104 and the air inlet 14 of the cover 102.

[0122] Figure 17 This diagram illustrates how the air guide plate 18 cuts off direct noise transmission. Noise radiates outwards through the ventilation openings 16 of the upper sealing plate 104, forming a shadow area behind the air guide plate 18. Sound waves require at least one reflection to reach this shadow area. Therefore, the air guide plate 18 is designed to ensure that as much of the air inlet 14 of the enclosure 102 is located within the shadow area, reducing direct noise transmission. Furthermore, the ratio of the area S1 of the direct noise transmission zone to the total area S2 of the air inlets 14 is less than or equal to 0.3.

[0123] Furthermore, the air inlet 14 of the cover 102 can be located on the back, front, or left and right sides of the cover 102. The vent 16 of the upper sealing plate 104 is not limited to being located on the front.

[0124] Existing gas water heaters 1 mainly adopt a rear air intake design, with multiple air inlets 14 on the back panel 202 of the water heater 1. In this embodiment, as... Figure 18 , Figure 21 , Figure 22 and Figure 24 As shown, the air inlet 14 on the back panel 202 has been eliminated, and the back panel 202 is now integrally formed. The position of the air inlet 14 has been moved upwards to the cover 102, resulting in a cleaner and more aesthetically pleasing back appearance. Furthermore, a flue pipe opening is provided at the top of the gas water heater 1. To facilitate flue pipe installation, the diameter of the flue pipe opening is generally larger than the flue pipe diameter. There are some gaps between the flue pipe opening at the top of the housing 20 and the flue pipe; these gaps are also one of the paths for noise radiation. This solution uses a silicone sealing ring 208 to seal these gaps, reducing noise radiation. Figure 25 The sealing ring 208 shown can be installed between the through hole of the cover 102 and the flue, or as... Figure 26 As shown, the sealing ring 208 is installed between the through hole of the upper sealing plate 104 and the flue, or as... Figure 27As shown, the sealing ring 208 is installed between the upper sealing plate 104 and the centrifugal fan casing. Furthermore, the noise reduction effect can be further enhanced by adding porous sound-absorbing material inside the water heater 1, such as... Figure 18 , Figures 21 to 24 As shown, areas where porous sound-absorbing materials may be placed are indicated, including the front panel 204 and the molding cavity 206 of the back panel 202.

[0125] The gas water heater 1 provided in this embodiment has its air intake assembly 10 located at the top of the water heater 1. The air intake channel has been optimized, ensuring that the air inlet 14 is positioned away from the main noise source of the water heater 1. Simultaneously, the direct transmission and radiation path of noise is blocked, achieving vibration reduction and noise reduction effects for the gas water heater 1. The gas water heater 1 provided by this invention not only has a simple appearance but also achieves good noise reduction, providing users with a better user experience.

[0126] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, unless otherwise expressly specified and limited. The terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0127] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0128] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An air intake assembly, characterized in that, Housing, the housing including a sound-absorbing cavity; An air inlet is provided on the housing and is connected to the silencing cavity; A ventilation opening is provided on the housing, and the ventilation opening is connected to the sound-absorbing cavity; An air guide plate is disposed on the housing and located inside the silencing cavity. The air guide plate is disposed opposite to the air inlet and is used for airflow guidance. The housing includes a first sidewall and a second sidewall; The air inlet is located on the first side wall, and the ventilation opening is located on the second side wall. The first side wall and the second side wall are two adjacent side walls of the housing, and the ventilation opening is located on the side of the second side wall away from the air inlet. The air guide plate includes: A first plate is disposed on the housing and is positioned opposite to the air inlet; A second plate is disposed on the housing and is located on at least one side of the first plate; The air intake assembly also includes a mounting part disposed on the housing and located in the silencing cavity, with the first plate located on both sides of the mounting part, and the mounting part being used to install the smoke pipe; The first plates located on both sides of the mounting portion are symmetrically distributed about the axis of the mounting portion.

2. The intake assembly according to claim 1, characterized in that, The air guide plate is located between the air inlet and the ventilation opening.

3. The intake assembly according to claim 1, characterized in that, The ratio of the area of ​​the vent that is directly connected to the air inlet to the area of ​​the air inlet is less than or equal to 0.

3.

4. The intake assembly according to claim 1, characterized in that, The area of ​​the air inlet is within the range of 2000 mm². 2 Up to 5000mm 2 ; The area of ​​the ventilation opening is within the range of 3000 mm². 2 Up to 8000mm 2 .

5. The intake assembly according to any one of claims 1 to 4, characterized in that, The second plate includes an arc-shaped plate, which is connected to at least one end of the first plate.

6. The intake assembly according to any one of claims 1 to 4, characterized in that, Both the first plate and the second plate are straight plates; The first plate and the second plate are spaced apart along the extension direction perpendicular to the first plate.

7. The intake assembly according to any one of claims 1 to 4, characterized in that, Both the first plate and the second plate are straight plates, and the second plate is connected to at least one end of the first plate; The extension directions of the first plate and the second plate form an angle, and the opening of the angle faces the vent.

8. The intake assembly according to any one of claims 1 to 4, characterized in that, The second plate includes a bent plate, one end of which is connected to one end of the first plate, and the other end of which extends toward the other end of the first plate.

9. The intake assembly according to any one of claims 1 to 4, characterized in that, There are multiple first plates, which are spaced apart and are inclined relative to the side wall of the shell.

10. The intake assembly according to any one of claims 1 to 4, characterized in that, The first plate includes an arc plate or a bent plate.

11. A water heater, characterized in that, include: The intake assembly as described in any one of claims 1 to 10; and The housing, on which the air intake assembly is mounted.

12. The water heater according to claim 11, characterized in that, The air intake assembly is located on the top of the housing.

Images