CN215490368U - Noise reduction shell for gas water heater and water heater with noise reduction shell - Google Patents

Abstract

The utility model relates to the technical field of water heaters, in particular to a noise reduction shell for a gas water heater and the water heater, and the noise reduction shell comprises a front cover and a bottom shell, wherein a plurality of ventilation holes are formed in a back plate of the bottom shell, blocking pieces extending towards the inner side of the bottom shell are arranged at the ventilation holes, and the ventilation holes and the blocking pieces are semi-elliptical. Still provide a water heater including above-mentioned noise reduction casing. External air enters the bottom shell through the vent holes to provide enough air quantity for the water heater, and noise generated by the water heater is reduced by the noise reduction effect of the baffle plates; the effect of making an uproar can realize ventilating and falling only need process ventilation hole and separation blade on the drain pan, and the structure is simpler, and processing can be simple and convenient, realizes manufacturing cost's reduction.

Description

Noise reduction shell for gas water heater and water heater with noise reduction shell

Technical Field

The utility model relates to the technical field of water heaters, in particular to a noise reduction shell for a gas water heater and the water heater.

Background

The gas water heater normally works by sucking a certain amount of external air from the air inlet channel of the shell, mixing the external air with gas to burn to generate heat, and then transferring the heat generated by gas burning to the live water through heat exchange. At present, sound absorption or sound insulation measures are commonly used for reducing the noise of the whole machine, and particularly have an obvious effect on the high-frequency noise of the gas water heater, but the effect on the broadband noise in the use process of the gas water heater is not obvious, and the sound absorption or sound insulation measures can increase the resistance of external air flowing into the shell to a certain extent, so that the rotating speed of a fan is increased, and the noise of the whole machine is increased. Therefore, the conventional noise reduction scheme for sound absorption or sound insulation can not obviously reduce the noise of the whole machine under the condition of ensuring enough air intake.

The Chinese patent document with the publication number of "CN 111947313A" and the publication date of 2020, 11 and 17 discloses a bottom shell assembly, a shell structure and heat exchange equipment using the same, wherein the bottom shell assembly comprises a bottom shell body and a cover plate, a bottom shell pressing groove is arranged on the bottom shell body, and a plurality of protrusions are arranged in the bottom shell pressing groove; the cover plate is arranged on the bottom shell body and forms an air channel at a position corresponding to the bottom shell pressing type groove, and the protruding portion is located in the air channel and used for repeatedly reflecting and weakening noise sound waves generated by the heat exchange equipment. Through set up drain pan die mould groove on the drain pan body, set up the bellying in drain pan die mould groove, set up the silence apron with drain pan die mould groove corresponding position department on the drain pan body, both connect the back and form air passage, and make the bellying be located air passage, make like this in the noise that the indirect heating equipment during operation produced gets into air passage earlier, the bellying in the air passage reflects and weakens the processing repeatedly to the noise sound wave to the effect of making an uproar has been played.

However, in the above-mentioned technical solutions, a plurality of parts need to be processed and assembled during the production process of the housing, which results in a complicated structure and an increase in production cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome at least one defect in the prior art, and provides a noise reduction shell for a gas water heater and the gas water heater, wherein the noise reduction shell can realize the noise reduction and ventilation effects, and the structure is simpler.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a casing of making an uproar falls for gas heater, includes protecgulum and drain pan, be provided with a plurality of ventilation holes on the backplate of drain pan, the drain pan is located ventilation hole department all is provided with to the separation blade that the drain pan inboard extends.

In the above technical solution, the noise reduction casing includes a front cover and a bottom casing, and the components of the water heater are all disposed in the noise reduction casing. The scheme is improved aiming at the bottom shell, an air inlet noise reduction structure is formed by a plurality of ventilation holes, and outside air enters the bottom shell from the space between the ventilation holes and the blocking pieces. Because the separation blade inwards extends, the resistance to the air is smaller, and therefore the air inlet amount required by the work can be met without excessive air vent quantity. The noise that the water heater produced passes through the ventilation hole and transmits to the external world, nevertheless when the noise propagates to ventilation hole department, because blockking of separation blade, the noise carries out multiple reflection between the separation blade in different ventilation holes, and the noise is reduced by the loss at the in-process energy of reflection, and a small amount of noise passes through the ventilation hole and transmits to the external world, has reduced the noise of water heater casing internal noise to the outer propagation of drain pan, improves the noise reduction of drain pan. The bottom shell is simple in structure, few in related parts and more convenient to produce and process. The separation blade can be a part of the bottom shell, the bottom shell is processed in a stamping and bending mode, and the through hole and the separation blade are processed out of the bottom shell at one time.

In one embodiment, the angle between the flap and the plane of the vent hole is 20-60 degrees, preferably 20 degrees.

In one embodiment, the plurality of ventilation holes are equidistantly distributed in the horizontal direction and/or the vertical direction.

In one embodiment, the bottom case is provided with a plurality of ventilation holes for shielding the motor and the controller.

The vent hole and the baffle plate can be in the shape of a circle, a polygon or a semi-ellipse, and in one embodiment, the vent hole and the baffle plate are both in the shape of a semi-ellipse.

In one embodiment, the straight edge of the flap is connected to the straight edge of the vent hole.

In one embodiment, the blocking piece is connected with one side of the ventilation hole close to the bottom of the bottom shell.

In one embodiment, the flap and the vent are integrally formed.

A water heater comprises the noise reduction shell.

Compared with the background technology, the noise reduction shell for the gas water heater has the beneficial effects that: external air enters the bottom shell through the vent holes to provide enough air quantity for the water heater, and noise generated by the water heater is reduced by the noise reduction effect of the baffle plates; the effect of making an uproar can realize ventilating and falling only need process ventilation hole and separation blade on the drain pan, and the structure is simpler, and processing can be simple and convenient, realizes manufacturing cost's reduction.

Drawings

FIG. 1 is a rear view of a noise reducing housing for a gas water heater of the present invention; (the letters beside the upper and lower arrows of the cross-sectional position in FIG. 1 are only retained by one letter "B")

FIG. 2 is a perspective view of a noise reducing housing for a gas water heater of the present invention;

FIG. 3 is a partial enlarged view of the portion A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 1;

fig. 5 is a partially enlarged view of the position C of fig. 4.

In the drawings: 1-a bottom shell; 2-a vent hole; 3-a baffle plate.

Detailed Description

Example 1

Fig. 1-5 show an embodiment of a noise reduction casing for a gas water heater, which includes a bottom casing 1, a plurality of ventilation holes 2 are provided on a back plate of the bottom casing 1, and blocking plates 3 extending towards the inner side of the bottom casing 1 are provided at positions of the ventilation holes 2 of the casing 1. The casing of making an uproar includes protecgulum and drain pan 1, and the part of water heater all sets up in making an uproar the casing of making an uproar. And this scheme is to improving to drain pan 1, constitutes an air inlet with a plurality of ventilation holes 2 and falls the structure of making an uproar, and the air in the external world gets into inside drain pan 1 from the space between ventilation hole 2 and the separation blade 3. Because the baffle plates 3 extend inwards, the resistance to air is small, and the air inlet quantity required by work can be met without excessive number of the vent holes 2. The noise that the water heater fan produced passes through ventilation hole 2 and transmits to the external world, nevertheless when the noise propagates to ventilation hole 2 department, because the stopping of separation blade 3, the noise carries out multiple reflection between the separation blade 3 in different ventilation hole 2, the noise is reduced by the loss at the in-process energy of reflection, a small amount of noise passes through ventilation hole 2 and transmits to the external world, has reduced the noise that water heater casing internal noise propagated outside to drain pan 1, improves the noise reduction of drain pan 1. The bottom shell 1 is simple in structure, few in related parts and more convenient to produce and process.

In one embodiment, as shown in fig. 5, an included angle a between the blocking plate 3 and the plane of the vent hole 2 is smaller than 90 degrees, the angle between the blocking plate 3 and the vent hole 2 affects the resistance of air circulation and the noise reduction effect on noise, the smaller the angle between the blocking plate 3 and the vent hole 2 is, the larger the resistance of air circulation is, the better the noise reduction effect on noise is, but the larger the resistance of air circulation is, the smaller the intake air amount is, and the combustion of the water heater is affected. The angle a is preferably 20 to 60 degrees, and in this range, the noise is reduced and the requirement of the air intake is met. In this embodiment, the angle between the baffle plate 3 and the ventilation hole 2 is 20 degrees, and the gap between the baffle plate 3 and the ventilation hole 2 satisfies the requirement of the air intake amount, and simultaneously, the noise reduction effect is also ensured.

In one embodiment, the ventilation holes 2 are distributed at different positions of the bottom shell according to the use requirement, and the ventilation holes 2 are arranged into a group of air intake noise reduction structures; or the two parts are only distributed at equal intervals along the horizontal direction or the vertical direction to form a linear structure. And because separation blades 3 are also equidistantly distributed, noise can be reflected between different separation blades 3 more quickly, and the noise reduction efficiency is improved.

In one embodiment, the bottom case 1 is provided with a plurality of ventilation holes 2 for shielding the motor and the controller. The motor and the controller can generate heat when working, and the heat dissipation of the motor and the controller is realized through the air circulation effect of the air vents 2.

In one embodiment, the vent hole 2 and the baffle 3 are semi-elliptical. Have bigger space between semi-oval-shaped ventilation hole 2 and the separation blade 3, in external air gets into drain pan 1 through ventilation hole 2 more easily, the air inlet effect in ventilation hole 2 is better.

In one embodiment, the straight edge of the baffle plate 3 is connected with the straight edge of the ventilation hole 2, the connecting area of the baffle plate 3 and the ventilation hole 2 is larger, and the connection between the baffle plate 3 and the ventilation hole 2 is more stable.

In one embodiment, the blocking sheet 3 is connected with one side of the bottom shell 1 close to the vent hole 2, when liquid flows down from top to bottom, the liquid can be blocked by the inward extending blocking sheet and then continuously flows down along the blocking sheet, and the liquid is prevented from entering the bottom shell.

In one embodiment, the flap 3 and the vent hole 2 are integrally formed. Separation blade 3 can be for the partly of drain pan 1, processes drain pan 1 through the mode that the punching press was bent, makes drain pan 1 once process out ventilation hole 2 and separation blade 3, uses this mode processing separation blade 3 and ventilation hole 2, and not only connection between them is firm, and manufacturing procedure is few moreover, and is efficient.

The beneficial effects of this embodiment: external air enters the bottom shell 1 through the vent holes 2 to provide enough air quantity for the water heater, and noise generated by the water heater is reduced by the noise reduction effect of the baffle plates 3; the ventilation and noise reduction effects can be realized only by processing the ventilation holes 2 and the separation blades 3 on the bottom shell 1, the structure is simpler, the processing can be simple and convenient, and the production cost is reduced.

Example 2

An embodiment of a water heater comprises a noise reduction shell in embodiment 1, wherein a motor, a fan, a controller, a burner and other components are arranged in the noise reduction shell.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a casing of making an uproar falls for gas heater, includes protecgulum and drain pan (1), its characterized in that, be provided with a plurality of ventilation holes (2) on the backplate of drain pan (1), the drain pan is located ventilation hole (2) department all is provided with to separation blade (3) that drain pan (1) inboard extends.

2. The noise reduction casing for a gas water heater according to claim 1, characterized in that the angle between the baffle plate (3) and the plane of the vent hole (2) is 20-60 degrees.

3. The noise reduction casing for a gas water heater according to claim 2, characterized in that the angle between the baffle plate (3) and the plane of the vent hole (2) is 20 degrees.

4. Noise reduction housing for gas water heater according to claim 1, characterized in that a plurality of ventilation holes (2) are equally distributed in horizontal and/or vertical direction.

5. Noise reduction casing for gas water heater according to claim 1, characterized in that said bottom shell (1) is provided with a plurality of ventilation holes (2) for the motor and the controller.

6. Noise reducing housing for gas water heater according to claim 1, characterized in that the ventilation holes (2) and the baffle plate (3) are both semi-elliptical.

7. Noise reduction housing for gas water heater according to claim 6, characterized in that the rectilinear edge of the flap (3) is connected with the rectilinear edge of the ventilation hole (2).

8. The noise reduction casing for gas water heater according to claim 1, characterized in that said flap (3) is connected to the side of said ventilation hole (2) close to the bottom of said bottom shell.

9. Noise reducing housing for gas water heater according to claim 1, characterized in that the flap (3) and the ventilation hole (2) are integrally formed.

10. A water heater comprising a noise reducing housing as claimed in any one of claims 1 to 9.

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