CN215809257U

CN215809257U - Gas water heater

Info

Publication number: CN215809257U
Application number: CN202120692996.2U
Authority: CN
Inventors: 李志敏; 吴桂安; 朱莲宗; 邓飞忠; 仇明贵; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2022-02-11
Anticipated expiration: 2031-04-06

Abstract

The utility model discloses a gas water heater, which comprises a shell bottom plate and a shell side plate, wherein the shell bottom plate is provided with an air inlet, the front side of the shell bottom plate is fixedly provided with a cover plate, the cover plate is provided with an air outlet, and the cover plate and the shell bottom plate form a hollow cavity. The utility model provides a sound transmission channel and an air flow channel formed on a shell of a gas water heater, on one hand, noise generated by the water heater is attenuated in the shell transmission process, so that system noise is effectively reduced, and meanwhile, air outside the shell enters the water heater through the channel to realize heat dissipation of key components inside the water heater.

Description

Gas water heater

Technical Field

The utility model relates to a gas water heater, in particular to a shell structure of the gas water heater.

Background

The air inlet mode of the gas water heater mostly adopts strip-shaped holes or shutter type air inlet, the air inlet resistance is low, but because the water heater body is the emitting point of a sound source, sound is diffused outwards through a gap in a sound wave form, and the attenuation value of the sound is very small, so that bad experience is caused for users.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows:

the utility model provides a gas water heater, which solves the problem of overhigh noise of the existing gas water heater.

According to the embodiment of the utility model, the gas water heater comprises a shell body bottom plate and a shell body side plate, wherein the shell body bottom plate is provided with an air inlet, the front side of the shell body bottom plate is fixedly provided with a cover plate, the cover plate is provided with an air outlet, and the cover plate and the shell body bottom plate form a hollow cavity.

Further, the air inlet (11) is arranged below the bottom plate of the shell, and the air outlet is arranged above the cover plate

Furthermore, the air inlet and the air outlet are in a plurality of strip-hole shapes, the air inlet flow direction of the air inlet is consistent with the air outlet flow direction of the air outlet, and the air flow direction in the hollow cavity is perpendicular to the air inlet flow direction of the air inlet.

Furthermore, the cross section thickness of the hollow cavity is 8mm-20mm, and the minimum sectional area of the hollow cavity is larger than the total area of the air inlet.

Further, the whole apron is "protruding" shape, the apron includes first region and second region, the width in first region is less than the width in second region, well cavity is whole to be "protruding" shape.

Furthermore, the upper part of the cover plate is provided with an installation yielding part, and the surface of the cover plate is also provided with a reinforcing rib.

Further, the total area of the air inlets, the sectional area of the first region and the sectional area of the second region are determined according to the peak noise frequency of the gas water heater.

Furthermore, a positioning flange is arranged at the front end edge of the side plate of the shell and used for installing sealing cotton.

Furthermore, the motor, the fan assembly, the heat exchanger assembly, the combustion chamber assembly and the burner assembly of the gas water heater are sequentially arranged from top to bottom.

The utility model has the beneficial effects that:

the sound propagation channel and the air flow channel are formed in the shell of the gas water heater, on one hand, the noise generated by the water heater is attenuated in the shell propagation process, so that the diffusion propagation of system noise is effectively reduced, the product noise is reduced, and meanwhile, the air outside the shell enters the water heater through the channel, so that the heat dissipation of key components inside the water heater is realized.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further illustrated by the following figures and examples.

FIG. 1 is an exploded view of a housing of a gas water heater according to an embodiment;

FIG. 2 is a schematic view of the structural assembly of a shell part of a gas water heater in the embodiment;

FIG. 3 is a schematic diagram of the internal structure of a gas water heater in an embodiment;

FIG. 4 is a schematic diagram illustrating the gas flow in the first chamber according to an embodiment;

reference numerals:

the air conditioner comprises a shell bottom plate 10, an air inlet 11, a cover plate 20, an air outlet 21, a shell side plate 30, a first area 31, a second area 32, a position-avoiding part 33, a reinforcing rib 34, a positioning flange 35, a hollow cavity 40, a motor 50, a fan assembly 60, a heat exchanger assembly 70, a combustion chamber assembly 80 and a combustor assembly 90.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.

Referring to the attached drawings 1-4, the gas water heater of the present invention comprises a housing bottom plate 10 and an upper housing 20, wherein a motor 50, a fan assembly 60, a heat exchanger assembly 70, a combustion chamber assembly 80 and a burner assembly 90 are arranged in the water heater from top to bottom, an air inlet 11 is arranged below the housing bottom plate 10, a cover plate 20 is fixedly arranged on the front side of the housing bottom plate 10, an air outlet 21 is arranged above the cover plate 20, and the cover plate 20 and the housing bottom plate 10 are enclosed to form a hollow chamber 40.

The hollow chamber 40 is a passage for outside air to enter the water heater, the outside air can enter the machine to reduce the temperature rise of the surfaces of all elements, the hollow chamber 40 is also a passage for the noise of the water heater to spread outwards, and the noise is effectively attenuated in the hollow chamber 40 in the spreading process, so that the noise of the product is effectively reduced.

As shown in fig. 4, after entering the hollow chamber 40 through the air inlet 11, the outside air flows out from the air outlet 21 into the water heater, so as to cool the internal components of the water heater. The propagation direction of the water heater noise is opposite to the air flow direction, the noise is propagated to the outside of the machine from the air inlet 11 after entering the hollow chamber 40 from the air outlet 21, and the noise is effectively attenuated in the propagation process, particularly in the propagation process of the hollow chamber 40. The air inlet 11 is disposed below the bottom plate 10 of the housing, the air outlet 21 is disposed above the cover plate 20, an air inlet flow direction of the air inlet 11 is consistent with an air outlet flow direction of the air outlet 21, an air flow direction in the hollow chamber 40 is perpendicular to the air inlet flow direction of the air inlet 11, that is, a flow channel is substantially "Z" -shaped, so that a propagation path of noise can be extended to improve a noise reduction effect, meanwhile, after flowing out from the air outlet 21 above the cover plate 20, external air can continuously flow downwards through the fan assembly 60, the heat exchanger assembly 70, the combustion chamber assembly 80, and the combustor assembly 90 and then enter the combustor, and the position of the air outlet 21 is selected to facilitate external air to cool more internal components.

More specifically, as shown in fig. 1, the cover plate 20 is integrally "convex", the hollow cavity 40 formed by the cover plate 20 and the housing bottom plate 10 is also "convex", the left and right sides of the upper portion of the cover plate 20 are provided with installation relief portions 33 to facilitate the installation of the cover plate 20 to the housing bottom plate 10, the surface of the cover plate 20 is further provided with four reinforcing ribs 34 to improve the strength of the cover plate, the cover plate comprises a first area 31 and a second area 32, the width of the first area 31 is smaller than that of the second area 32, so that the noise propagation channel forms an expanding noise reduction structure, and the noise reduction is realized by utilizing the reflection and interference caused by the expansion and contraction of the cross section of the noise propagation channel to reduce the noise.

More specifically, the cross-sectional thickness of the hollow chamber 40 is 8mm-20mm, and the minimum sectional area of the hollow chamber 40 is larger than the total area of the air inlet 11, so as to ensure that the requirement of sufficient air supply is ensured while the expanding type muffling chamber muffles noise. The total area of the air inlet 11 is S0, the sectional area of the first area 31 is S1, the sectional area of the second area 32 is S2, the total area of the air outlet 21 is S3, the expansion ratio of each stage of the expanding silencing cavity is M1-S1/S0 which is not less than 0.84, M2-S2/S0 which is not less than 1.29, and M3-S3/S0 which is not less than 1.06, and the expansion ratio of each stage can be further optimized and selected according to different peak noise frequencies.

More specifically, the front edges of the shell side plates 30 on the left and right sides of the shell bottom plate 10 are provided with positioning flanges 35, and the positioning flanges 35 are used for mounting high-density sound-absorbing cotton, so that noise generated from the inside of the machine is further absorbed.

In light of the foregoing description of preferred embodiments in accordance with the utility model, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a gas water heater, includes casing bottom plate (10) casing curb plate (30), its characterized in that, casing bottom plate (10) are provided with air inlet (11), casing bottom plate (10) front side is fixed and is provided with apron (20), apron (20) are provided with gas outlet (21), apron (20) with cavity chamber (40) in casing bottom plate (10) constitution.

2. Gas water heater according to claim 1, characterized in that said air inlet (11) is arranged below said housing bottom plate (10) and said air outlet (21) is arranged above said cover plate (20).

3. The gas water heater of claim 2, wherein the air inlet (11) and the air outlet (21) are formed in a plurality of strip holes, the direction of the inlet air flow of the air inlet (11) is the same as the direction of the outlet air flow of the air outlet (21), and the direction of the air flow in the hollow chamber (40) is perpendicular to the direction of the inlet air flow of the air inlet (11).

4. The gas water heater of claim 3, characterized in that the cross-sectional thickness of the hollow chamber (40) is 8mm-20mm, and the minimum cross-sectional area of the hollow chamber (40) is larger than the total area of the air inlet (11).

5. The gas water heater according to claim 4, characterized in that said cover plate (20) is overall "convex", said cover plate (20) comprising a first zone (31) and a second zone (32), said first zone (31) having a width smaller than that of said second zone (32), said hollow chamber (40) being overall "convex".

6. The gas water heater of claim 5, characterized in that the upper part of the cover plate (20) is provided with a mounting relief portion (33), and the surface of the cover plate (20) is also provided with a reinforcing rib (34).

7. Gas water heater according to claim 6, characterized in that the total area of the gas inlets (11), the cross-sectional area of the first region (31), the cross-sectional area of the second region (32) are determined according to the peak noise frequency of the gas water heater.

8. The gas water heater of claim 1, characterized in that the front end edge of the shell side plate (30) is provided with a positioning flange (35), and the positioning flange (35) is used for installing sealing cotton.

9. The gas water heater of claim 1, wherein the electric motor (50), the fan assembly (60), the heat exchanger assembly (70), the combustion chamber assembly (80), and the burner assembly (90) of the gas water heater are arranged from top to bottom.