CN219222868U - Gas water heater - Google Patents

Abstract

The utility model discloses a gas water heater, which comprises a shell, a combustion assembly and a back cover, wherein an air inlet is formed in the shell, at least part of the shell is of a sound barrier structure, and/or a silencing part is arranged on the shell, the combustion assembly comprises a first support and a combustor, the first support is arranged in the shell, the first support is provided with a secondary air cavity and a combustion chamber which are communicated, the secondary air cavity is communicated with the air inlet, the cross section area of at least part of the secondary air cavity is gradually increased along the air flow direction, the back cover is connected with the shell and is positioned at the position of shielding the air inlet, the back cover and the shell define an air inlet channel, an opening part communicated with the air inlet channel is formed in the back cover, and a silencing bulge is arranged on one side of the back cover, which is adjacent to the shell. The gas water heater provided by the embodiment of the utility model has the advantages that the noise generated during working is small, and the use experience of a user is improved.

Description

Gas water heater

Technical Field

The utility model relates to the technical field of household appliances, in particular to a gas water heater.

Background

When the gas water heater works, oxygen required by gas combustion is pumped in from the outside by the built-in fan, because the oxygen amount required by combustion is large, the air inlet flow velocity can be relatively fast, the air flow inside the water heater is turbulent, so that the working noise of the existing forced-air water heater is relatively large, in addition, combustion noise, water vaporization noise, fan air flow noise and the like generated during the working of the gas water heater are directly transmitted to the outside through the air inlet, noise pollution is brought to the environment, and the use experience of a user is seriously influenced by the noise.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides a gas water heater with low noise.

The gas water heater comprises a shell, a combustion assembly and a back cover, wherein an air inlet is formed in the shell, at least part of the shell is of a sound barrier structure, and/or a silencing piece is arranged on the shell, the combustion assembly comprises a first support and a combustor, the first support is arranged in the shell, the first support is provided with a secondary air cavity and a combustion chamber which are communicated, the combustor is arranged in the combustion chamber, the secondary air cavity is communicated with the air inlet, the cross section area of at least part of the secondary air cavity is gradually increased along the air flow direction, the back cover is connected with the shell and is positioned at the position of shielding the air inlet, the back cover and the shell define an air inlet channel, an opening part communicated with the air inlet channel is formed in the back cover, and a silencing bulge is arranged on one side of the back cover, which is adjacent to the shell.

According to the gas water heater provided by the embodiment of the utility model, the sound barrier structure and/or the silencing piece are/is arranged, the secondary air cavity and the back cover are improved, and various noise reduction means are combined, so that the noise generated during the operation of the gas water heater can be obviously reduced, and the use experience of a user is improved.

In some embodiments, the first bracket includes a fixed portion and an air guiding portion connected, the combustion chamber is formed in the fixed portion, the secondary air cavity is formed in the air guiding portion, the burner assembly further includes a fan having a fan inlet in communication with the air inlet and a fan outlet in communication with the secondary air cavity.

In some embodiments, the air guiding part comprises a bottom plate connected with the fan, a through hole connected with the outlet of the fan is arranged on the bottom plate, and the bottom plate is in a flaring shape.

In some embodiments, the housing includes a bottom shell and a front cover removably connected, the combustion assembly is disposed within the bottom shell, and a thickness of the bottom shell is 1mm or more to form the sound barrier structure.

In some embodiments, the bottom shell includes a bottom shell main body, an upper baffle, a lower baffle and a plurality of second supports, the upper end and the lower end of the bottom shell main body are all provided with openings, the upper baffle is arranged at the upper end opening of the bottom shell main body, the lower baffle is arranged at the lower end opening of the bottom shell main body, the front end bending part of the bottom shell main body is provided with a process notch, the process notch comprises an upper process notch and a lower process notch, at least part of the upper baffle is positioned at the upper process notch, and the second supports are arranged at the lower process notch.

In some embodiments, the combustion assembly further comprises a fume collecting hood and a fume pipe, a fume exhaust port is arranged on the upper baffle, the fume collecting hood is arranged in the shell, one end of the fume collecting hood is communicated with the combustion chamber, the other end of the fume collecting hood is communicated with the fume pipe, the fume pipe penetrates through the fume exhaust port, the silencing piece comprises a sealing ring, and the sealing ring is arranged at the fume exhaust port to seal a gap between the fume exhaust port and the fume pipe.

In some embodiments, the sound attenuating member further includes sound absorbing cotton attached to the front cover and/or the bottom case.

In some embodiments, the front cover includes a glass panel and a third bracket, the glass panel is connected to a front side of the third bracket, a rear side of the third bracket is covered with the sound absorbing cotton, and the third bracket is detachably connected to the bottom case.

In some embodiments, a hook is disposed on the third support, an annular groove and a clamping groove corresponding to the hook are disposed on the bottom shell, foam is disposed in the annular groove, the hook is matched in the clamping groove to fix the front cover on the bottom shell, and the front cover can compress the foam.

In some embodiments, the back cover comprises a back cover main body and a side wall plate, the side wall plate is connected at the edge of at least part of the back cover main body, the opening part is positioned at the lower end of the back cover, the silencing protrusions are positioned at one side, adjacent to the shell, of the back cover main body, the silencing protrusions are divided into two groups, each group of silencing protrusions comprises a plurality of strip-shaped pieces, the strip-shaped pieces are arranged at intervals in the vertical direction, and the two groups of silencing protrusions are symmetrically arranged in the horizontal direction.

Drawings

FIG. 1 is a schematic front view of a gas water heater according to an embodiment of the present utility model.

FIG. 2 is a schematic rear view of a gas water heater according to an embodiment of the present utility model.

Fig. 3 is an exploded view of a gas water heater according to an embodiment of the present utility model.

Fig. 4 is an exploded view of a housing of a gas water heater according to an embodiment of the present utility model.

Fig. 5 is an exploded view of a bottom case of a gas water heater according to an embodiment of the present utility model.

FIG. 6 is a schematic view of a combustion assembly of a gas water heater according to an embodiment of the present utility model.

FIG. 7 is an enlarged view of a portion of a combustion assembly of a gas water heater according to an embodiment of the present utility model.

FIG. 8 is a schematic view of a first bracket and burner of a gas water heater according to an embodiment of the present utility model.

FIG. 9 is a schematic view of a base plate of a gas water heater according to an embodiment of the present utility model.

FIG. 10 is a schematic view of a back cover of a gas water heater according to an embodiment of the utility model.

Reference numerals:

1. a housing; 11. a bottom case; 111. a bottom case main body; 1111. an air inlet; 1112. a process notch is formed; 1113. a lower process notch; 1114. a clamping groove; 1115. an annular groove; 112. an upper baffle; 1121. a smoke outlet; 113. a lower baffle; 114. a second bracket; 12. a front cover; 121. a glass panel; 122. a third bracket; 1221. a clamping hook; 123. sound absorbing cotton; 124. soaking cotton; 2. a combustion assembly; 21. a first bracket; 211. a fixing part; 212. an air guide part; 2121. a bottom plate; 21211. a through hole; 22. a burner; 23. a blower; 24. a fume collecting hood; 25. a smoke tube; 26. a seal ring; 3. a back cover; 31. a back cover body; 32. side coaming; 33. a silencing protrusion; 331. a strip; 34. an opening.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 10, the gas water heater according to the embodiment of the present utility model includes a housing 1, a combustion assembly 2 and a back cover 3, wherein the combustion assembly 2 is disposed in the housing 1, the combustion assembly 2 can generate heat energy through combustion, an air inlet 1111 is disposed on the housing 1, and the air inlet 1111 is generally located on the back of the housing 1.

At least part of the shell 1 is of a sound barrier structure, and/or a sound-deadening piece is arranged on the shell 1, it is understood that in order to increase the sound-deadening effect of the gas water heater, the shell 1 itself can be improved to form the sound barrier structure, and the sound-deadening piece can be arranged on the shell 1, so that the sound-deadening and noise-reducing effects can be achieved in both modes.

As shown in fig. 8, the combustion assembly 2 includes a first bracket 21 and a burner 22, the first bracket 21 is disposed in the housing 1, the burner 22 is fixed on the first bracket 21, the first bracket 21 has a secondary air chamber and a combustion chamber which are communicated, the burner 22 is disposed in the combustion chamber, the secondary air chamber is communicated with the air inlet 1111, air enters the secondary air chamber through the air inlet 1111 and then enters the burner 22 to burn and generate heat, at least part of the cross-sectional area of the secondary air chamber is gradually increased along the air flow direction, so that the air can be diffused in a certain range after entering the secondary air chamber, and the concentration of wind force is avoided, thereby playing a role in reducing noise.

As shown in fig. 2, the back cover 3 is connected with the casing 1 and is located at the position of the air inlet 1111, the back cover 3 and the casing 1 define an air inlet channel, the air inlet channel is communicated with the air inlet 1111, an opening 34 communicated with the air inlet channel is arranged on the back cover 3, air enters the air inlet channel through the opening 34 and then enters the secondary air cavity through the air inlet 1111, and a silencing protrusion 33 is arranged on one side of the back cover 3 adjacent to the casing 1. The sound wave can be reflected by the silencing bulge 33, and noise inside the gas water heater passes through the silencing bulge 33 after being transmitted from the air inlet 1111, so that the sound wave can be reflected for multiple times, and the sound waves are counteracted, so that the sound wave is weakened, and the noise is reduced.

According to the gas water heater provided by the embodiment of the utility model, the sound barrier structure and/or the silencing piece are/is arranged, the secondary air cavity and the back cover 3 are improved, and various noise reduction means are combined, so that the noise generated during the operation of the gas water heater can be obviously reduced, and the use experience of a user is improved.

In some embodiments, the first bracket 21 includes a fixing portion 211 and an air guiding portion 212 connected, the fixing portion 211 is located above the air guiding portion 212, the fixing portion 211 is used for fixing the burners 22, the combustion chamber is formed in the fixing portion 211, the number of the burners 22 is plural, the plurality of the burners 22 are arranged at intervals along the length direction of the first bracket 21, a gap between two adjacent burners 22 is 4-5mm, for example, the number of the burners 22 is 16, and a gap between two adjacent burners 22 is 4-4.2mm.

The secondary air cavity is formed in the air guide part 212, the combustion assembly 2 further comprises a fan 23, the fan 23 is arranged below the air guide part 212, the fan 23 is provided with a fan inlet and a fan outlet, the fan inlet is communicated with the air inlet 1111, the fan outlet is communicated with the secondary air cavity, the flow rate of air can be increased through the fan 23, and the combustion efficiency is increased.

Further, the air guiding portion 212 includes a base plate 2121, the base plate 2121 is located at the bottom of the first bracket 21, a through hole 21211 connected to the fan outlet is provided on the base plate 2121, and the base plate 2121 is in a flared shape.

As shown in fig. 9, the through hole 21211 is located at the middle of the bottom plate 2121, and the height of the bottom plate 2121 gradually increases from the middle to both ends, thereby forming a flare-shaped structure, and when air enters the secondary air chamber through the through hole 21211, the air spreads to both ends under the guiding action of the bottom plate 2121, thereby reducing the generation of noise.

As shown in fig. 3, in some embodiments, the housing 1 includes a bottom case 11 and a front cover 12 detachably connected, the bottom case 11 is in a box shape, the front cover 12 is detachably mounted on the bottom case 11 to close the bottom case 11, the combustion assembly 2 is disposed in the bottom case 11, the air intake 1111 is disposed on the bottom case 11, the back cover 3 is mounted on the back surface of the bottom case 11 by screws or other fasteners,

the thickness of the bottom chassis 11 is 1mm or more to form a sound barrier structure.

It should be noted that, the casing of the water heater in the related art is generally made of a sheet material with a thickness of 0.8mm or 0.6mm, and the sound insulation effect is poor due to the thinner sheet material, while the gas water heater in the embodiment of the utility model is made of a sheet material with a thickness of more than or equal to 1mm, so that the sound insulation effect is better, and the noise reduction effect is achieved.

As shown in fig. 5, in some embodiments, the bottom chassis 11 includes a bottom chassis main body 111, an upper baffle 112, a lower baffle 113, and a plurality of second brackets 114, the upper and lower ends of the bottom chassis main body 111 are provided with openings, the upper baffle 112 is disposed at the upper end opening of the bottom chassis main body 111, and the lower baffle 113 is disposed at the lower end opening of the bottom chassis main body 111.

The bottom shell main body 111 is manufactured by adopting a stamping process, the front end bending part of the bottom shell main body 111 is provided with an arc-shaped process gap, and is limited by the process, because the bottom shell main body 111 is rectangular, the bottom shell main body 111 is provided with four process gaps, the process gaps comprise two upper process gaps 1112 and two lower process gaps 1113, two ends of the upper baffle 112 are arc-shaped, two ends of the upper baffle 112 are respectively positioned at the two upper process gaps 1112 to seal the upper process gaps 1112, the shape of the second support 114 corresponds to that of the lower process gaps 1113, the two second supports 114 are arranged at the two lower process gaps 1113 in a one-to-one correspondence manner to seal the lower process gaps 1113, and the good sealing performance of the bottom shell main body 111 is ensured by arranging the upper baffle 112, the lower baffle 113 and the second supports 114, so that sound waves are blocked, the noise of the gas water heater is reduced, and the upper baffle 112, the lower baffle 113 and the second supports 114 can be connected with the bottom shell main body 111 in a welding, bonding or other connecting modes.

As shown in fig. 6 and 7, in some embodiments, the gas water heater further includes a fume collecting hood 24 and a fume duct 25, the fume collecting hood 24 is connected to the fume duct 25, and the fume collecting hood 24 is used to collect and discharge the gas and fume generated by the burner 22 to the outside through the fume duct 25.

Optionally, the upper baffle 112 is provided with a smoke outlet 1121, the smoke collecting hood 24 is disposed in the casing 1, one end of the smoke collecting hood 24 is communicated with the combustion chamber, the other end of the smoke collecting hood 24 is communicated with the smoke pipe 25, the smoke pipe 25 penetrates through the smoke outlet 1121, as the smoke pipe 25 and the upper baffle 112 are of hard structures, a gap inevitably exists between the smoke pipe 25 and the upper baffle 112, the silencing piece comprises a sealing ring 26, and the sealing ring 26 is disposed at the smoke outlet 1121 to seal the gap between the smoke outlet 1121 and the smoke pipe 25, so that the tightness and the noise reduction effect of the casing 1 are further improved.

As shown in fig. 3, in some embodiments, the silencing member further includes a sound absorbing cotton 123, where the sound absorbing cotton 123 is attached to the front cover 12 and/or the bottom cover 11, and by providing the sound absorbing cotton 123, sound waves generated by components such as the combustion assembly 2 can be absorbed, so that noise of the gas water heater is reduced.

In some embodiments, the front cover 12 includes a glass panel 121 and a third bracket 122, the glass panel 121 is connected to a front side of the third bracket 122, a sound absorbing cotton 123 is attached to a rear side of the third bracket 122, the glass panel 121 and the third bracket 122 may be connected by an adhesive manner, the third bracket 122 and the sound absorbing cotton 123 may be connected by an adhesive manner, and the third bracket 122 may be detachably connected to the bottom case 11.

It should be noted that, the third support 122 is plate-shaped, the third support 122 and the glass panel 121 together form a double-layer structure, the double-layer structure has good sound insulation effect, and the sound-absorbing cotton 123 arranged on the third support 122 is matched, so that the noise reduction effect is obvious.

Further, as shown in fig. 4, a hook 1221 is provided on the third bracket 122, an annular groove 1115 and a clamping groove 1114 corresponding to the hook 1221 are provided on the bottom shell 11, foam 124 is provided in the annular groove 1115, the hook 1221 is matched in the clamping groove 1114 to fix the front cover 12 on the bottom shell 11, and when the front cover 12 is fixed on the bottom shell 11, the front cover 12 can compress the foam 124 in the annular groove 1115, so as to increase the tightness between the front cover 12 and the bottom shell 11. The engagement between the hook 1221 and the slot 1114 may be an elastic design, that is, they have a certain elasticity, so that the gap between the front cover 12 and the bottom case 11 is smaller, so that the foam 124 is sealed more reliably, and noise is reduced.

In addition, the connection tightness between the front cover 12 and the bottom case 11 can be enhanced by adding fasteners such as screws.

In some embodiments, the back cover 3 includes a back cover main body 31 and side panels 32, the back cover main body 31 is a rectangular plate, the side panels 32 are connected at least part of edges of the back cover main body 31, as shown in fig. 10, the side panels 32 are connected at the upper edge and the left and right edges of the back cover main body 31, the lower edge of the back cover main body 31 is not provided with the side panels 32, so that an opening 34 is formed at the lower end of the back cover 3, and the back cover main body 31 may be connected to the back of the bottom shell 11 by screws, snaps, or other fasteners.

The silencing protrusions 33 are located on one side of the back cover main body 31 adjacent to the housing 1, the silencing protrusions 33 are divided into two groups, each group of silencing protrusions 33 comprises a plurality of strip-shaped pieces 331, the plurality of strip-shaped pieces 331 are arranged at intervals in the vertical direction, and the two groups of silencing protrusions 33 are symmetrically arranged in the horizontal direction. Thus, when the noise inside the gas water heater passes through the silencing protrusion 33 after being transmitted from the air inlet, the sound waves are reflected for multiple times under the action of the strip-shaped piece 331, and the sound waves are counteracted, so that the sound waves are weakened, and the noise is reduced.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. A gas water heater, comprising:

the shell is provided with an air inlet, at least part of the shell is of a sound barrier structure, and/or the shell is provided with a silencing piece;

the combustion assembly comprises a first bracket and a combustor, wherein the first bracket is arranged in the shell, the first bracket is provided with a secondary air cavity and a combustion chamber which are communicated, the combustor is arranged in the combustion chamber, the secondary air cavity is communicated with the air inlet, and the cross section area of at least part of the secondary air cavity is gradually increased along the air flow direction;

the back cover is connected with the shell and is located at the position of the air inlet, the back cover and the shell define an air inlet channel, an opening part communicated with the air inlet channel is formed in the back cover, and a silencing protrusion is arranged on one side, adjacent to the shell, of the back cover.

2. The gas water heater of claim 1, wherein the first bracket includes a fixed portion and a wind-guiding portion connected, the combustion chamber is formed in the fixed portion, the secondary air cavity is formed in the wind-guiding portion, the burner assembly further includes a fan having a fan inlet in communication with the air inlet and a fan outlet in communication with the secondary air cavity.

3. The gas water heater according to claim 2, wherein the air guiding part comprises a bottom plate connected with the fan, a through hole connected with the outlet of the fan is arranged on the bottom plate, and the bottom plate is in a flaring shape.

4. The gas water heater of claim 1, wherein the housing comprises a bottom shell and a front cover removably connected, the combustion assembly is disposed in the bottom shell, and a thickness of the bottom shell is 1mm or more to form a sound barrier structure.

5. The gas water heater according to claim 4, wherein the bottom shell comprises a bottom shell main body, an upper baffle, a lower baffle and a plurality of second brackets, openings are formed at the upper end and the lower end of the bottom shell main body, the upper baffle is arranged at the upper end opening of the bottom shell main body, the lower baffle is arranged at the lower end opening of the bottom shell main body, a front bending part of the bottom shell main body is provided with a process notch, the process notch comprises an upper process notch and a lower process notch, at least part of the upper baffle is positioned at the upper process notch, and the second brackets are arranged at the lower process notch.

6. The gas water heater according to claim 5, wherein the combustion assembly further comprises a fume collecting hood and a fume pipe, the upper baffle is provided with a fume outlet, the fume collecting hood is arranged in the shell, one end of the fume collecting hood is communicated with the combustion chamber, the other end of the fume collecting hood is communicated with the fume pipe, the fume pipe penetrates through the fume outlet, and the silencing piece comprises a sealing ring, and the sealing ring is arranged at the fume outlet to seal a gap between the fume outlet and the fume pipe.

7. The gas water heater according to claim 4, wherein the muffler further comprises sound absorbing cotton that is adhered to the front cover and/or the bottom case.

8. The gas water heater according to claim 7, wherein the front cover comprises a glass panel and a third bracket, the glass panel is connected to a front side of the third bracket, a rear side of the third bracket is covered with the sound absorbing cotton, and the third bracket is detachably connected to the bottom shell.

9. The gas water heater according to claim 8, wherein a hook is arranged on the third bracket, an annular groove and a clamping groove corresponding to the hook are arranged on the bottom shell, foam is arranged in the annular groove, the hook is matched in the clamping groove to fix the front cover on the bottom shell, and the front cover can compress the foam.

10. A gas water heater according to any one of claims 1-9, wherein the back cover comprises a back cover main body and a side wall plate, the side wall plate is connected to at least part of the edge of the back cover main body, the opening is positioned at the lower end of the back cover, the silencing protrusions are positioned on one side of the back cover main body adjacent to the shell, the silencing protrusions are divided into two groups, each group of silencing protrusions comprises a plurality of strip-shaped pieces, the strip-shaped pieces are arranged at intervals in the vertical direction, and the two groups of silencing protrusions are symmetrically arranged in the horizontal direction.

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