CN218955199U

CN218955199U - Mute structure and gas water heater

Info

Publication number: CN218955199U
Application number: CN202223602173.XU
Authority: CN
Inventors: 任富佳; 陈耀; 柳健; 李明金; 李剑; 沈磊; 王玉珍; 黄兆伟
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-02
Anticipated expiration: 2032-12-30

Abstract

The utility model provides a mute structure and a gas water heater, which relate to the technical field of kitchen appliances, noise generated in a bottom shell of the gas water heater is transmitted to a direction with smaller pressure, the noise enters a silencing cavity, and due to the fact that a reflecting silencing plate is arranged in the silencing cavity, the noise can collide and reflect between the inner wall of the silencing cavity and the reflecting silencing plate for multiple times, the noise intensity is reduced, the noise intensity is weakened, and finally the noise is emitted to the outside air from an outlet on the bottom shell to achieve a mute effect. Compared with the scheme of only realizing noise reduction through plugging noise in the prior art, in the scheme, the reflection weakening sound source reaches the purpose of noise reduction through increasing the reflection times of noise, so that the influence of noise reduction energy by the use time is small, and the purpose of long-acting noise reduction can be achieved.

Description

Mute structure and gas water heater

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a mute structure and a gas water heater.

Background

When the gas water heater is used, air can be combusted, and a large amount of noise can be generated when the air is combusted.

In the prior art, for example, in the scheme of the silencing system of the gas water heater with the application number of CN208382574U, a scheme of adding sealing rings between structural members is disclosed, so that the purpose of reducing the transmission of sound to the outside of a shell is achieved.

The disadvantages of the prior art are: along with the aging of the sealing ring, the noise is larger and larger, and the purpose of long-term noise reduction cannot be achieved because the complete blocking noise is transmitted outwards.

Disclosure of Invention

The utility model aims to provide a mute structure and a gas water heater, so as to relieve the technical problem of loud noise when the existing gas water heater is used.

In a first aspect, an embodiment of the present utility model provides a mute structure, including: the silencing box comprises a bottom shell and a silencing box body, wherein an opening of the silencing box body is connected with the inner wall of the bottom shell, and a silencing cavity is formed by enclosing the bottom shell and the silencing box body;

an outlet which is communicated with the inside and the outside of the silencing cavity is arranged on the bottom shell; the silencing box body is provided with an inlet communicated with the inside and the outside of the silencing cavity, and a reflecting silencing plate is arranged in the silencing cavity.

In one embodiment, a baffle is disposed between the reflective muffler and the outlet, the baffle being configured to reflect a portion of the noise toward a side of the reflective muffler.

In one embodiment, the silencing cavity includes a first inner wall and a second inner wall disposed opposite to each other, the reflection silencing plate closest to the baffle is connected to the first inner wall with a gap therebetween, and the baffle is connected to the second inner wall with a gap therebetween.

In one embodiment, the reflective silencer plate closest to the baffle plate is inclined in a direction toward the outlet in a direction toward the second inner wall, and the baffle plate is inclined in a direction away from the outlet.

In one embodiment, the reflective silencer plate has through holes extending through opposite sides.

In one embodiment, the baffle has a gap with the end face of the opening of the silencing box, so that the baffle is prevented from blocking the outlet.

In one embodiment, the bottom shell and the sound-deadening box are connected by a clamping connection, a connecting piece connection or an adhesive connection.

In one embodiment, the silencing box body is provided with a claw protruding downwards, and the bottom shell is provided with a clamping groove corresponding to the claw.

In one embodiment, the silencing box comprises a base plate facing the outlet and a side wall connected to the base plate and arranged around it, the side wall being connected to the bottom shell, at least one of the inlets being arranged on the side wall.

In a second aspect, an embodiment of the present utility model provides a gas water heater, including the mute structure described above.

The mute structure provided by the embodiment of the utility model comprises: the silencing box comprises a bottom shell and a silencing box body, wherein an opening of the silencing box body is connected with the inner wall of the bottom shell, and a silencing cavity is formed by enclosing the bottom shell and the silencing box body; an outlet which is communicated with the inside and the outside of the silencing cavity is arranged on the bottom shell; the silencing box body is provided with an inlet communicated with the inside and the outside of the silencing cavity, and a reflecting silencing plate is arranged in the silencing cavity. Noise that gas heater's drain pan is inside to the less direction transmission of pressure, and the noise can enter into the amortization intracavity, owing to have the reflection acoustical panel in the amortization intracavity, the noise can take place many times collision reflection between the inner wall in amortization chamber and reflection acoustical panel, noise intensity is reduced, noise intensity is weakened, and finally the noise is followed export on the drain pan is gone out to the outside air in and reach silence effect. Compared with the scheme of only realizing noise reduction through plugging noise in the prior art, in the scheme, the reflection weakening sound source reaches the purpose of noise reduction through increasing the reflection times of noise, so that the influence of noise reduction energy by the use time is small, and the purpose of long-acting noise reduction can be achieved.

The gas water heater provided by the embodiment of the utility model comprises the mute structure. Because the gas water heater provided by the embodiment of the utility model adopts the mute structure, the gas water heater provided by the embodiment of the utility model also has the advantage of the mute structure.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a silencing box with a silencing structure according to an embodiment of the present utility model;

fig. 2 is a schematic view of a silencing box with a silencing structure with a bottom removed according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a mute structure provided by an embodiment of the present utility model;

fig. 4 is a schematic diagram of a bottom shell of a mute structure according to an embodiment of the present utility model;

fig. 5 is an exploded view of a mute structure according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of an internal structure of a gas water heater according to an embodiment of the present utility model.

Icon: 100-bottom shell; 110-outlet; 120-clamping grooves;

200-a silencing box body; 210-inlet; 220-a reflective muffler plate; 230-baffle; 240-opening; 250-claw; 260-a first inner wall; 270-a second inner wall;

300-fan.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, only for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.

In addition, in the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The mute structure provided by the embodiment of the utility model can be arranged on a gas water heater and can also be arranged on other electric appliances with noise generation.

The silence structure includes: bottom case 100 and muffler box 200, bottom case 100 is typically the outermost housing on an appliance, such as a gas water heater housing.

As shown in fig. 1 to 5, the sound-deadening box body 200 has a box shape, for example, the sound-deadening box body 200 may have a bottom surface and a side wall connected to the bottom surface and disposed around the periphery, and the side wall encloses an opening 240 of the sound-deadening box body 200. Specifically, the silencing box 200 in the present embodiment may be placed at the upper left and right corners of the bottom chassis 100, and thus, the cross section of the silencing box 200 is approximately inverted triangle or inverted trapezoid, thereby avoiding the blower 300 at the middle position of the bottom chassis 100.

As shown in fig. 5, the opening 240 of the silencing box 200 may be connected to the back plate of the bottom case 100, and the bottom case 100 and the silencing box 200 enclose a silencing cavity.

The back plate of the bottom shell 100 can be provided with an outlet 110 which is communicated with the inside and the outside of the silencing cavity, and the outlet 110 also forms an air inlet of the burner of the gas water heater.

The silencing box body 200 is provided with an inlet 210 for communicating the inside and the outside of the silencing cavity, the inlet 210 can be arranged on each surface of the side wall of the silencing box body 200, and the direction of the inlet 210 is perpendicular to the direction of the outlet 110, so that noise entering the silencing cavity can not directly pass out of the outlet 110 and act with the reflecting silencing plate 220 to be reflected back and forth in the silencing cavity.

Noise generated in the bottom shell 100 of the gas water heater is transmitted to the direction with smaller pressure, the noise enters the silencing cavity, the reflecting silencing plate 220 is arranged in the silencing cavity, the noise is collided and reflected between the inner wall of the silencing cavity and the reflecting silencing plate 220 for multiple times, the noise intensity is reduced, the noise intensity is weakened, and finally the noise is dispersed from the outlet 110 on the bottom shell 100 to the outside air to achieve the silencing effect.

Compared with the scheme of only realizing noise reduction through plugging noise in the prior art, in the scheme, the reflection weakening sound source reaches the purpose of noise reduction through increasing the reflection times of noise, so that the influence of noise reduction energy by the use time is small, and the purpose of long-acting noise reduction can be achieved.

As shown in fig. 3, the number of the reflection silencing plates 220 may be at least one, but may be two, three or more, for increasing the reflection frequency, but is not too much, which may affect the gas flow, and may be one or two, preferably.

A baffle 230 may be disposed between the reflection and noise reduction plate 220 and the outlet 110, and the baffle 230 may be used to reflect a portion of noise toward the side of the reflection and noise reduction plate 220.

With the barrier 230, premature transmission of noise from the outlet 110 may be avoided. Noise entering the silencing cavity from the side wall can collide with the reflective silencing plate 220 and then be reflected to the baffle 230, or can collide with the baffle 230 and then be emitted to the reflective silencing plate 220, and the arrangement of the baffle 230 reduces the caliber of a noise propagation channel, so that more noise is blocked and reflected by the baffle 230, and the reflection frequency of the noise is increased.

The silencing chamber may include a first inner wall 260 and a second inner wall 270 disposed opposite to each other, the reflection silencing plate 220 closest to the baffle 230 is connected to the first inner wall 260 with a gap between the baffle 230 and the second inner wall 270, and the baffle 230 is connected to the second inner wall 270 with a gap between the baffle and the first inner wall 260.

In this embodiment, the first inner wall 260 and the second inner wall 270 may be disposed at intervals in the up-down direction. The reflection silencing plate 220 and the baffle 230 are staggered, and an S-shaped channel can be formed between the reflection silencing plate and the baffle, so that the movement path of noise is prolonged, and more energy is consumed.

In a direction in which the first inner wall 260 faces the second inner wall 270, the reflection muffler plate 220 closest to the baffle 230 is inclined in a direction approaching the outlet 110, and the baffle 230 is inclined in a direction away from the outlet 110.

As shown in fig. 3, by providing the reflection silencing plate 220 and the baffle 230 with different inclination directions, noise is reflected back and forth between the two, and the reflection frequency is increased. Specifically, the angle formed by the reflection and noise reduction plate 220 and the horizontal plane may be in the range of 30 ° to 80 °. The angle between the baffle 230 and the horizontal plane may range from 10 deg. to 60 deg..

In order to balance noise and combustion efficiency, the reflection muffler 220 has through holes penetrating through opposite sides, so that a portion of noise is reflected and air flow is smoothly circulated.

The baffle 230 has a gap with the end face of the opening 240 of the silencing box 200, so as to avoid the baffle 230 blocking the outlet 110.

The bottom shell 100 and the silencing box 200 can be connected by a clamping connection, a connecting piece or an adhesive.

In this embodiment, the silencing box 200 is provided with a claw 250 protruding downward, and the bottom case 100 is provided with a clamping groove 120 corresponding to the claw 250.

The claws 250 are inserted into the clamping grooves 120, and the limiting protrusions on the claws 250 block the claws 250 from being pulled out of the clamping grooves 120, so that the silencing box body 200 is assembled with the bottom shell 100.

The bottom chassis 100 and the sound deadening case 200 may also be connected by screws.

The bottom case 100 and the silencing case 200 may be further connected by an adhesive, and after the connection is performed by the adhesive, a sealing ring may not be disposed between the bottom case 100 and the silencing case 200, and the solidified adhesive may form a sealing structure.

The silencing box 200 comprises a bottom plate facing the outlet 110 and a side wall connected to the bottom plate and disposed around the bottom plate, the side wall being connected to the bottom case 100, at least one of the inlets 210 being disposed on the side wall.

A plurality of inlets 210 may be provided on each of the plurality of sides of the side wall of the sound-deadening box body 200 having the cross-section of the inverted triangle or the inverted trapezoid, so that noise inside the bottom case 100 enters into the sound-deadening chamber.

As shown in fig. 6, the gas water heater includes a blower 300 for exhausting exhaust gas generated by combustion. Depending on the spatial configuration of the inside of the burner, a plurality of silencing cases 200 may be provided, and a plurality of inlets 210 may be provided on the bottom chassis 100 to match the silencing cases 200, thereby forming a silencing part. Two silencing box bodies 200 are installed on the bottom shell 100 of the gas water heater in the embodiment, and are symmetrically arranged on the left side and the right side of the fan 300.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A mute structure, comprising: the silencer comprises a bottom shell (100) and a silencing box body (200), wherein an opening (240) of the silencing box body (200) is connected with the inner wall of the bottom shell (100), and a silencing cavity is formed by the bottom shell (100) and the silencing box body (200) in a surrounding mode;

an outlet (110) which is communicated with the inside and the outside of the silencing cavity is formed in the bottom shell (100); an inlet (210) communicated with the inside and the outside of the silencing cavity is arranged on the silencing box body (200), and a reflecting silencing plate (220) is arranged in the silencing cavity.

2. The mute structure according to claim 1, characterized in that a baffle (230) is provided between the reflection muffler plate (220) and the outlet (110), the baffle (230) being for reflecting a part of noise toward the reflection muffler plate (220) side.

3. The silencing structure of claim 2 wherein the silencing chamber comprises a first inner wall (260) and a second inner wall (270) disposed opposite each other, the reflective silencer plate (220) closest to the baffle (230) being connected to the first inner wall (260) with a gap therebetween and the second inner wall (270), the baffle (230) being connected to the second inner wall (270) with a gap therebetween and the first inner wall (260).

4. A muting structure according to claim 3, characterized in that a reflection silencer plate (220) closest to the baffle plate (230) is inclined in a direction approaching the outlet (110) in a direction of the first inner wall (260) toward the second inner wall (270), and the baffle plate (230) is inclined in a direction away from the outlet (110).

5. The mute structure of any one of claims 1 to 4, wherein the reflection muffler plate (220) has a through hole penetrating through opposite sides.

6. The silencing structure according to any of claims 2-4, wherein the baffle (230) has a gap with an end surface where the opening (240) of the silencing box (200) is located, so as to avoid the baffle (230) blocking the outlet (110).

7. The mute structure according to any one of claims 1 to 4, wherein the bottom shell (100) and the mute case (200) are connected by a snap, a connection or an adhesive.

8. The silencing structure as claimed in claim 7, wherein the silencing box (200) is provided with a downwardly protruding claw (250), and the bottom case (100) is provided with a clamping groove (120) corresponding to the claw (250).

9. The silencing structure as claimed in any one of claims 1 to 4, wherein the silencing box (200) comprises a bottom plate facing the outlet (110) and a side wall connected to the bottom plate and disposed around, the side wall being connected to the bottom case (100), at least one of the inlets (210) being disposed on the side wall.

10. A gas water heater comprising a mute structure as claimed in any one of claims 1 to 9.