CN218955200U

CN218955200U - Mute bottom shell and gas water heater

Info

Publication number: CN218955200U
Application number: CN202223602107.2U
Authority: CN
Inventors: 任富佳; 李明金; 柳健; 陈耀; 沈磊; 王玉珍; 李剑; 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 bottom shell and a gas water heater, which relate to the technical field of kitchen appliances, wherein the mute bottom shell comprises: the top outlet is in butt joint with the air inlet of the burner; the side wall of the box body is provided with an inlet, and the inside of the box body is provided with a mute channel communicated with the inlet and the outlet. The noise that the combustor produced does not directly discharge, but enters into the silence drain pan earlier, then discharges after the silence passageway, in this scheme, prolonged the air inlet passageway, the sound source of combustion noise forms the amortization effect at the mutual refraction of the air in the silence passageway, can effectively weaken the intensity that combustion noise propagates in the air through the wind channel device, reduces water heater combustion noise, reaches the amortization effect, reduces customer complaint.

Description

Mute bottom shell and gas water heater

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a mute bottom shell 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.

However, in the prior art, only the problem of silencing of the exhaust position is considered, and no silencing measure is taken on the air inlet position of the burner.

Disclosure of Invention

The utility model aims to provide a mute bottom shell and a gas water heater so as to solve the technical problem that the air inlet position of the existing burner penetrates out of larger noise.

In a first aspect, the present utility model provides a mute bottom case, including:

the top outlet is in butt joint with the air inlet of the burner;

the side wall of the box body is provided with an inlet, and the inside of the box body is provided with a mute channel communicated with the inlet and the outlet.

Further, the top surface of the box body is open to form the outlet;

the front side wall of the box body is provided with an inlet.

Further, a partition plate extending to the rear side and having a gap with the rear side plate is arranged on the front side wall, and the partition plate divides the box body into two parts which are communicated up and down.

Further, the front side of the box body is open, one end of the partition board, which is close to the front side of the box body, is connected with the top of the front side of the box body, and the partition board is inclined downwards from front to back.

Further, the left side edge of the partition plate is provided with a first flanging, the right side edge of the partition plate is provided with a second flanging, the first flanging is welded with the left side wall of the box body, and the second flanging is welded with the right side wall of the box body.

Further, the box body is provided with a rear side wall, the left edge of the rear side wall is provided with a third flanging, the right edge of the rear side wall is provided with a fourth flanging, the third flanging is welded with the left side wall of the box body, and the fourth flanging is welded with the right side wall of the box body.

Further, the left side wall, the right side wall and the rear side wall of the box body are formed by the edges of the bottom surface in a flanging mode.

Further, the upper edge of the rear side wall is provided with a fifth flanging which is turned towards the front side; the upper edge of the left side wall is provided with a sixth flanging which is turned over to the left side, and the upper edge of the right side wall is provided with a seventh flanging which is turned over to the right side; one side of the baffle, which is positioned at the front side of the box body, is provided with an eighth turnup which is turned upwards, the upper edge of the eighth turnup is provided with a ninth turnup which is turned backwards, and the fifth turnup, the sixth turnup, the seventh turnup and the ninth turnup are on the same plane.

Further, the burner box further comprises a guide plate densely provided with through holes, and the guide plate is arranged between the burner and the outlet of the box body.

In a second aspect, the present utility model provides a gas water heater, including the above-mentioned mute bottom case.

The utility model provides a mute bottom shell, comprising: the top outlet is in butt joint with the air inlet of the burner; the side wall of the box body is provided with an inlet, and the inside of the box body is provided with a mute channel communicated with the inlet and the outlet. The noise that the combustor produced does not directly discharge, but enters into the silence drain pan earlier, then discharges after the silence passageway, in this scheme, prolonged the air inlet passageway, the sound source of combustion noise forms the amortization effect at the mutual refraction of the air in the silence passageway, can effectively weaken the intensity that combustion noise propagates in the air through the wind channel device, reduces water heater combustion noise, reaches the amortization effect, reduces customer complaint.

The gas water heater provided by the utility model comprises the mute bottom shell. Because the gas water heater provided by the utility model cited the mute bottom shell, the gas water heater provided by the utility model also has the advantage of the mute bottom shell.

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 case of a mute pan according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of a case of a mute pan provided in an embodiment of the present utility model;

fig. 3 is a schematic view of a baffle of a mute bottom case according to an embodiment of the present utility model;

fig. 4 is an installation diagram of a mute bottom case and a burner according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of an internal structure of a gas water heater according to an embodiment of the present utility model.

Icon: 1-a box body; 11-inlet; 12-a separator; 13-fifth flanging; 14-sixth flanging; 15-seventh flanging; 16-ninth flanging; 17-mute channels; 2-a deflector; 3-burner.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. 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.

As shown in fig. 1 to 5, the mute bottom case provided by the present utility model is installed below the bottom air inlet of the burner 3, so that the air inlet passage can be lengthened.

Specifically, the silence drain pan includes: a box body 1 with a top outlet in butt joint with an air inlet of a combustor 3; the side wall of the box body 1 is provided with an inlet 11, and the interior of the box body 1 is provided with a mute channel 17 which is communicated with the inlet 11 and the outlet. When the burner 3 is in operation, ambient air enters from the inlet 11, passes through the mute passage 17 and enters the burner 3 from the outlet.

Therefore, unlike the related art, the air inlet of the burner 3 in the related art is not provided with any mute structure, and thus, noise generated by the burner 3 can be directly discharged from the air inlet. The noise generated by the burner 3 in this embodiment is not directly discharged, but enters the mute bottom shell first, and then is discharged after passing through the mute channel 17.

The box 1 in this embodiment is substantially rectangular in shape, and because it is mounted at the bottom of the burner 3, the top surface of the box 1 is open, and the outlet is formed, and the outlet is directly abutted with the air inlet of the burner 3. The front side wall of the box body 1 is provided with an inlet 11, and the set direction is not necessarily the side facing the user when the gas water heater works.

The mute channel 17 extends in a meandering manner, noise is reflected in the channel and the inner wall of the channel for multiple times, and energy is reduced, so that noise reduction is realized.

In this embodiment, the front side wall is provided with a partition plate 12 extending to the rear side and having a gap with the rear side plate, and the partition plate 12 divides the box 1 into two parts that are vertically communicated.

The air flows backward from the inlet 11, then collides with the rear side wall of the case 1, flows upward, and then enters the burner 3 from the upper opening. The arrangement of the partition plate 12 divides the box body 1 into an upper layer and a lower layer, so that the path of the mute channel 17 can be prolonged, and the mute effect can be improved.

The front side of the box body 1 is open, one end of the partition plate 12, which is close to the front side of the box body 1, is connected with the top of the front side of the box body 1, and the partition plate 12 is inclined downwards from front to back.

In order to reduce the processing difficulty, the front side surface of the box body 1 can also be open, and two metal pieces are assembled by welding the partition plate 12. One metal piece comprises a bottom surface, a left side wall, a right side wall and a rear side wall, the metal piece is integrally formed through a flanging process, the second metal piece is a partition plate 12, the front edge of the partition plate 12 is connected with the top of the front side surface of the box body 1, and the partition plate 12 is inclined downwards from front to back; the angle of inclination may range from 10 deg. -30 deg..

The left side edge of the partition plate 12 is provided with a first flanging, the right side edge of the partition plate 12 is provided with a second flanging, the first flanging is welded with the left side wall of the box body 1, and the second flanging is welded with the right side wall of the box body 1. The box body 1 is provided with a rear side wall, the left edge of the rear side wall is provided with a third flanging, the right edge of the rear side wall is provided with a fourth flanging, the third flanging is welded with the left side wall of the box body 1, and the fourth flanging is welded with the right side wall of the box body 1. The left side wall, the right side wall and the rear side wall of the box body 1 are all formed by the edges of the bottom surface in a flanging mode. The welding area is increased by forming the flanging, and the connection strength is improved.

The upper edge of the rear side wall is provided with a fifth flanging 13 which is turned towards the front side; the upper edge of the left side wall is provided with a sixth flanging 14 which is turned over to the left, and the upper edge of the right side wall is provided with a seventh flanging 15 which is turned over to the right; one side of the partition plate 12, which is positioned at the front side of the box body 1, is provided with an eighth turnup which is turned upwards, the upper edge of the eighth turnup is provided with a ninth turnup 16 which is turned backwards, and the fifth turnup 13, the sixth turnup 14, the seventh turnup 15 and the ninth turnup 16 are on the same plane.

The fifth flange 13, the sixth flange 14, the seventh flange 15 and the ninth flange 16 can be provided with assembly holes, so that a good fitting relation with the bottom surface of the combustor 3 can be formed, sealing is facilitated, and air leakage is avoided.

The mute bottom shell also comprises a guide plate 2 densely provided with through holes, and the guide plate 2 is arranged between the burner 3 and the outlet of the box body 1.

The deflector 2 is provided with a plurality of through holes, so that air is uniformly transferred to the flame holes.

The combustor 3 closely cooperates with the silence drain pan, and during operation of the water heater, the air is inhaled into the combustor 3 through the silence drain pan through the fan operation, and the combustion noise source can't directly outwards relay through the lower part air inlet in the machine inside, and the combustion noise weakens the noise through the amortization passageway in the silence drain pan.

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 bottom case, comprising:

the top outlet is in butt joint with the air inlet of the burner (3);

the side wall of the box body (1) is provided with an inlet (11), and a mute channel (17) which is communicated with the inlet (11) and the outlet is arranged in the box body (1).

2. A mute pan according to claim 1, characterized in that the top surface of the box (1) is open, forming the outlet;

the front side wall of the box body (1) is provided with an inlet (11).

3. A mute pan as claimed in claim 2, characterized in that the front side wall is provided with a partition (12) extending to the rear side and having a gap with the rear side plate, the partition (12) dividing the box (1) into two parts communicating up and down.

4. A mute pan as claimed in claim 3, characterized in that the front side of the box (1) is open, one end of the partition (12) close to the front side of the box (1) is connected to the top of the front side of the box (1), and the partition (12) is inclined downwards from front to back.

5. The mute bottom case according to claim 4, characterized in that the left side edge of the partition (12) has a first flanging, the right side edge of the partition (12) has a second flanging, the first flanging is welded with the left side wall of the box (1), and the second flanging is welded with the right side wall of the box (1).

6. The mute bottom case according to claim 5, characterized in that the box (1) has a rear side wall, the left edge of which has a third flange, the right edge of which has a fourth flange, which is welded to the left side wall of the box (1), and the fourth flange is welded to the right side wall of the box (1).

7. The mute bottom case according to claim 6, characterized in that the left side wall, the right side wall and the rear side wall of the box body (1) are each formed by a flanging form on each side of the bottom surface.

8. A mute bottom case according to claim 7, characterized in that the upper edge of the rear side wall has a fifth flanging (13) turned to the front side; the upper edge of the left side wall is provided with a sixth flanging (14) which is turned to the left, and the upper edge of the right side wall is provided with a seventh flanging (15) which is turned to the right; one side of the partition plate (12) positioned at the front side of the box body (1) is provided with an eighth turned-over edge which is turned upwards, the upper edge of the eighth turned-over edge is provided with a ninth turned-over edge (16) which is turned backwards, and the fifth turned-over edge (13), the sixth turned-over edge (14), the seventh turned-over edge (15) and the ninth turned-over edge (16) are on the same plane.

9. A mute pan as claimed in any one of claims 1 to 8, further comprising a baffle (2) densely populated with through holes, the baffle (2) being mounted between the burner (3) and the outlet of the box (1).

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