阅读说明：本技术 蜗壳、风机及油烟机 (Volute, fan and lampblack absorber ) 是由 任富佳 孟君 郑桐福 余国成 周海昕 于 2021-10-29 设计创作，主要内容包括：本发明涉及厨房电器技术领域,尤其涉及一种蜗壳、风机及油烟机。该蜗壳包括第一风道板、第二风道板及设置于二者之间的侧板,第一风道板、第二风道板与侧板之间形成内腔,且侧板靠近内腔的一侧设置有能够吸收噪音的消音组件。该风机包括上述蜗壳。该油烟机包括上述风机。本发明在于提供一种蜗壳、风机及油烟机,以缓解现有技术中存在的油烟机运行过程中风机处的噪音较大的技术问题。(The invention relates to the technical field of kitchen appliances, in particular to a volute, a fan and a range hood. The volute comprises a first air duct plate, a second air duct plate and a side plate arranged between the first air duct plate and the second air duct plate, an inner cavity is formed between the first air duct plate, the second air duct plate and the side plate, and a noise reduction assembly capable of absorbing noise is arranged on one side of the side plate close to the inner cavity. The fan comprises the volute. This lampblack absorber includes above-mentioned fan. The invention provides a volute, a fan and a range hood, and aims to solve the technical problem that the noise at the fan is high in the operation process of the range hood in the prior art.)

1. The volute is characterized by comprising a first air duct plate (110), a second air duct plate (120) and a side plate (130) arranged between the first air duct plate and the second air duct plate, wherein an inner cavity is formed between the first air duct plate (110) and the second air duct plate (120) and the side plate (130), and a noise reduction assembly (200) capable of absorbing noise is arranged on one side, close to the inner cavity, of the side plate (130).

2. The spiral casing of claim 1, wherein the side plate (130) is integrally formed.

3. The spiral casing of claim 2, wherein the side plate (130) is formed by injection molding.

4. The spiral casing of claim 2, wherein the sound attenuation assemblies (200) are provided in a plurality of sets, and the plurality of sets of sound attenuation assemblies (200) are arranged at intervals along a molded line direction of the side plate (130);

or the silencing assembly (200) extends along the molded line direction of the side plate (130).

5. The volute of claim 2, wherein the muffler assembly (200) comprises a fixing plate (210) disposed on a side of the side plate (130) adjacent to the inner chamber, wherein a muffler chamber is disposed between the side plate (130) and the fixing plate (210), and a muffler member (220) is disposed in the muffler chamber;

the fixing plate (210) is provided with a silencing hole (211), and the silencing cavity is communicated with the inner cavity through the silencing hole (211).

6. The spiral casing of claim 5, wherein a plurality of the muffling holes (211) of the fixing plate (210) are provided, and the plurality of the muffling holes (211) are arranged in an array on the fixing plate (210).

7. The spiral casing of any of claims 1 to 6 wherein the first duct plate (110) and the second duct plate (120) are sheet metal parts.

8. The spiral casing of any of claims 1 to 6, wherein an electrical box (140) for accommodating a power supply board is arranged on the side plate (130), and the electrical box (140) is integrally formed with the side plate (130).

9. A fan comprising an impeller (300), a motor (400) and a volute (100) according to any of claims 1-8;

the impeller (300) is arranged in an inner cavity of the volute (100), the motor (400) is connected to the volute (100) through a bracket, and the motor (400) is in driving connection with the impeller (300).

10. A range hood, characterized by comprising the fan of claim 9.

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a volute, a fan and a range hood.

Background

A range hood, also called a range hood, is a kitchen appliance for purifying a kitchen environment, and can rapidly exhaust and discharge oil smoke generated in a cooking process to the outside to achieve the purpose of purifying the kitchen environment.

The fan is the core part of lampblack absorber, and the fan generally includes spiral case, motor and impeller, and the motor drive connects the impeller, and motor and impeller all install in the spiral case. When the fan is started, the motor rotates to drive the impeller to do work on air in the volute and push the air to move along the volute, wherein the flow direction of the air is changed through the volute and the air pressure is increased, so that pressure difference is generated between the air inlet and the air outlet of the volute, and the air can be sucked from the air inlet and discharged from the air outlet.

Wherein, the lampblack absorber operation in-process fan department can produce noise pollution, and current lampblack absorber noise reduction effect is relatively poor, receives the noise influence during the user cooks, probably produces uncomfortable feelings such as headache, dysphoria or palpitation, has greatly influenced the experience of user in the culinary art and has felt.

Therefore, the application provides a new spiral case, fan and lampblack absorber to above-mentioned problem.

Disclosure of Invention

The first purpose of the invention is to provide a volute so as to relieve the technical problem of high noise at a fan in the operation process of a range hood in the prior art.

The second purpose of the invention is to provide a fan, so as to further alleviate the technical problem of high noise at the fan in the operation process of the range hood in the prior art.

The third purpose of the invention is to provide a range hood, so as to further relieve the technical problem of high noise at a fan in the operation process of the range hood in the prior art.

Based on the first objective, the present invention provides a volute, which includes a first air duct plate, a second air duct plate, and a side plate disposed therebetween, wherein an inner cavity is formed between the first air duct plate, the second air duct plate, and the side plate, and a noise reduction assembly capable of absorbing noise is disposed on a side of the side plate close to the inner cavity.

Further, in the present invention, the side plates are integrally formed.

Further, in the present invention, the side plate is formed by injection molding.

Furthermore, the silencing assemblies are arranged in multiple groups, and the multiple groups of silencing assemblies are arranged at intervals along the molded line direction of the side plate;

or the silencing assembly extends along the molded line direction of the side plate.

Furthermore, in the invention, the silencing assembly comprises a fixing plate arranged on one side of the side plate close to the inner cavity, a silencing cavity is arranged between the side plate and the fixing plate, and a silencing piece is arranged in the silencing cavity;

the fixing plate is provided with a silencing hole, and the silencing cavity is communicated with the inner cavity through the silencing hole.

Furthermore, in the invention, a plurality of silencing holes are arranged on the fixing plate, and the plurality of silencing holes are arranged on the fixing plate in an array manner.

Further, in the present invention, the first air duct plate and the second air duct plate are both sheet metal parts.

Further, in the invention, an electrical box for accommodating the power panel is arranged on the side plate, and the electrical box and the side plate are integrally formed.

By adopting the technical scheme, the volute provided by the invention has the following beneficial effects:

in the volute, an impeller is placed in an inner cavity, and the impeller can generate noise when running, so that the inner cavity is full of noise. Wherein, absorb the noise of inner chamber through the amortization subassembly to reduce the noise of inner chamber, alleviated the great technical problem of noise of the lampblack absorber operation in-process fan department that exists among the prior art.

In addition, because the amortization subassembly sets up in the curb plate and is close to one side of inner chamber, also the amortization subassembly sets up in the inner chamber, compare among the prior art amortization subassembly and set up outside the inner chamber, and the amortization subassembly passes through trompil and inner chamber intercommunication on the curb plate, in this embodiment, the interior noise of inner chamber can directly contact with the amortization subassembly, has avoided trompil on the curb plate to guarantee the leakproofness of spiral case, prevent the spiral case to a certain extent and leak the pressure, be favorable to guaranteeing the air pressure of fan.

To sum up, the volute can avoid static pressure loss caused by airflow leakage in the volute to a certain extent on the basis of reducing the noise of the fan, so that the effect of low noise and high pressure is achieved.

It should be noted that, the amortization subassembly sets up in the inner chamber, and the spiral case plays the guard action to the amortization subassembly, prevents that the amortization subassembly from being scratched or damaging by accident and leading to becoming invalid, and moreover, the spiral case also plays the effect of keeping off the greasy dirt to the amortization subassembly, prevents that the amortization subassembly from being polluted by the greasy dirt. To sum up, this spiral case can protect the amortization subassembly, has prolonged the life of amortization subassembly.

Based on the second objective, the present invention provides a blower, which comprises an impeller, a motor and the volute;

the impeller is arranged in an inner cavity of the volute, the motor is connected to the volute through a support, and the motor is in driving connection with the impeller.

By adopting the technical scheme, the fan has the following beneficial effects:

by arranging the volute in the fan, correspondingly, the fan has all the advantages of the volute, and the description is omitted.

Based on the third purpose, the invention provides a range hood, which comprises the fan.

By adopting the technical scheme, the range hood disclosed by the invention has the following beneficial effects:

through set up above-mentioned fan in the lampblack absorber, corresponding, this lampblack absorber has all advantages of above-mentioned fan, no longer gives details here.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a partial structural sectional view of a scroll according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a volute provided by an embodiment of the present invention;

fig. 3 is an exploded view of a fan according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fan according to an embodiment of the present invention;

fig. 5 is a second schematic structural diagram of a fan according to an embodiment of the present invention.

Reference numerals:

100-a volute;

110-a first airway plate; 111-a first air inlet; 120-a second airway plate; 121-a second air inlet; 130-side plate; 131-an air outlet; 140-an electrical box;

200-a sound attenuating assembly; 210-a fixed plate; 211-sound deadening hole; 220-a sound deadening piece;

300-an impeller;

400-motor;

500-air inlet ring;

600-a check valve;

700-bracket.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1, 2 and 3, the present embodiment provides a volute 100, wherein the volute 100 includes a first air duct plate 110, a second air duct plate 120 and a side plate 130 disposed therebetween, an inner cavity is formed between the first air duct plate 110, the second air duct plate 120 and the side plate 130, and a noise reduction assembly 200 capable of absorbing noise is disposed on a side of the side plate 130 close to the inner cavity.

With such an arrangement, the volute 100 has an inner cavity for accommodating the impeller 300, and the impeller 300 generates noise during operation, so that the inner cavity is filled with noise. Wherein, absorb the noise of inner chamber through amortization subassembly 200 to reduce the noise of inner chamber, alleviated the great technical problem of noise of lampblack absorber operation in-process fan department that exists among the prior art.

In addition, because amortization subassembly 200 sets up in the one side that the curb plate 130 is close to the inner chamber, also the amortization subassembly 200 sets up in the inner chamber, compare among the prior art amortization subassembly and set up outside the inner chamber, and the amortization subassembly passes through trompil and inner chamber intercommunication on the curb plate, in this embodiment, inner chamber noise can directly contact with amortization subassembly 200, has avoided trompil on curb plate 130, thereby the leakproofness of spiral case 100 has been guaranteed, prevent spiral case 100 pressure leakage to a certain extent, be favorable to guaranteeing the airflow pressure of fan.

In summary, the volute 100 can avoid static pressure loss caused by air leakage in the volute 100 to a certain extent on the basis of reducing the noise of the fan, so as to achieve the effects of low noise and high pressure.

It should be noted that, the silencing assembly 200 is disposed in the inner cavity, the volute 100 protects the silencing assembly 200, and prevents the silencing assembly 200 from being scratched or damaged accidentally to cause failure, and moreover, the volute 100 also protects the silencing assembly 200 from oil contamination, and prevents the silencing assembly 200 from being contaminated by oil contamination. In summary, the volute 100 can protect the muffler assembly 200, and the service life of the muffler assembly 200 is prolonged.

Optionally, the side plate 130 is an integral structure, and the first duct plate 110 and the second duct plate 120 are respectively connected to the side plate 130, so as to complete the assembly of the scroll casing 100; or, the side plate 130 includes a first plate body and a second plate body detachably connected, where the first plate body is integrated with the first air duct plate 110, the second plate body is integrated with the second air duct plate 120, and the first plate body is connected with the second plate body, so as to complete the assembly of the scroll casing 100.

Preferably, referring to fig. 2 and fig. 3, in the present embodiment, a plurality of sets of silencing assemblies 200 are provided, and the plurality of sets of silencing assemblies 200 are arranged at intervals along the profile direction of the side plate 130; alternatively, the sound attenuating assembly 200 may extend in the contour direction of the side plate 130.

It should be noted that, the noise reduction assemblies 200 are provided with a plurality of sets, for example, the number of the noise reduction assemblies 200 is two, three, four, or five sets.

The multiple groups of silencing assemblies 200 are disposed at intervals along the profile direction of the side plate 130, or the multiple groups of silencing assemblies 200 are connected into a whole along the profile direction of the side plate 130, so that the silencing assemblies 200 extend along the profile direction of the side plate 130.

Due to the arrangement, the area of the silencing assembly 200 is increased, so that the noise elimination efficiency of the silencing assembly 200 is improved, and the noise of the inner cavity is further reduced.

Preferably, referring to fig. 1 and 3, in the present embodiment, the silencing assembly 200 includes a fixing plate 210 disposed on one side of the side plate 130 close to the inner cavity, a silencing cavity is disposed between the side plate 130 and the fixing plate 210, and a silencing member 220 is disposed in the silencing cavity; the fixing plate 210 is provided with a silencing hole 211, and the silencing hole 211 is communicated with the inner cavity.

With such an arrangement, noise in the inner cavity can enter the sound-deadening cavity through the sound-deadening hole 211, and can contact with the sound-deadening member 220, and the noise can be absorbed by the sound-deadening member 220, thereby reducing the noise in the inner cavity.

It should be noted that, in this embodiment, the silencing piece 220 is communicated with the inner cavity through the silencing hole 211 on the fixing plate 210, that is, the silencing hole 211 is opened on the fixing plate 210, instead of the prior art in which the silencing piece is disposed outside the inner cavity and needs to open a hole on the side plate, thereby ensuring the sealing performance of the volute 100, preventing the volute 100 from leaking pressure to a certain extent, and being beneficial to ensuring the pressure of the fan.

Wherein, amortization piece 220 sets up in the inner chamber, and spiral case 100 plays the guard action to amortization piece 220, prevents that amortization piece 220 from being scratched or damaging by accident and leading to inefficacy, and moreover, spiral case 100 also plays the effect of keeping off the greasy dirt to amortization piece 220, prevents that amortization piece 220 from being polluted by the greasy dirt. In summary, the scroll casing 100 can protect the silencer 220, and prolong the service life of the silencer 220.

The sound-absorbing material 220 is a sound-absorbing material capable of absorbing noise, and for example, the sound-absorbing material 220 is sound-absorbing cotton in which a porous structure inside the sound-absorbing cotton can absorb energy of sound waves. With such an arrangement, the sound wave energy of the noise can be absorbed or weakened by the sound-absorbing cotton, and the noise can be reduced significantly.

Alternatively, the fixing plate 210 may be detachably coupled or fixedly coupled to the side plate 130. The fixing plate 210 is detachably connected to the side plate 130, for example, the fixing plate 210 is detachably connected to the side plate 130 by fastening, or screwing; the fixing plate 210 is fixedly connected to the side plate 130, for example, the fixing plate 210 is connected to the side plate 130 by welding or bonding.

Preferably, in this embodiment, the fixing plate 210 is detachably connected to the side plate 130, so as to replace the sound attenuating assembly 200 timely and quickly.

Preferably, referring to fig. 1 and 3, in the present embodiment, a plurality of muffling holes 211 are formed in the fixing plate 210, and the plurality of muffling holes 211 are arranged in an array on the fixing plate 210.

That is, the plurality of muffling holes 211 are arranged in a linear array of rows and columns, or a circumferential array, on the fixing plate 210.

Due to the arrangement, the contact area between the noise in the inner cavity and the silencing piece 220 is increased, so that the noise elimination efficiency of the silencing assembly 200 is improved, and the noise in the inner cavity is further reduced.

Preferably, in the present embodiment, the side plate 130 is integrally formed.

With the arrangement, on the one hand, the structural sealing performance of the side plate 130 is ensured in processing, and on the other hand, the consistency of the finished side plate 130 is ensured in process, the production efficiency is higher, and the production cost of the side plate 130 is reduced.

Preferably, in the present embodiment, the side plate 130 is formed by injection molding.

With the adoption of the arrangement, the consistency of the finished side plate 130 is guaranteed technically through the die, and the production efficiency of the side plate 130 is improved.

Preferably, in this embodiment, the first air duct plate 110 and the second air duct plate 120 are both sheet metal parts.

With such an arrangement, the structural strength of the volute 100 is improved, thereby extending the service life of the volute 100.

Preferably, referring to fig. 1 and 3, in the present embodiment, an electrical box 140 for accommodating a power supply board (prior art) is disposed on the side plate 130, and the electrical box 140 and the side plate 130 are integrally formed.

Alternatively, the electrical box 140 and the side plate 130 are integrally formed by injection molding of plastic. Due to the arrangement, the structure of the volute casing 100 is more compact, the assembly of the volute casing 100 is more convenient, the cost of the volute casing 100 is reduced, and in addition, compared with the case that the electrical box 140 is connected with the side plate 130 in a welding mode, in the embodiment, the connection between the electrical box 140 and the side plate 130 has no welding point, so that the function of preventing welding is achieved, the volute casing 100 is more durable, and the electrical box 140 is more firmly connected with the side plate 130.

Preferably, referring to fig. 4, the electrical box 140 is disposed at the volute tongue of the volute 100.

Example two

The second embodiment provides a fan, which includes the volute 100 of the first embodiment, the technical features of the volute 100 disclosed in the first embodiment are also applicable to this embodiment, and the technical features of the volute 100 disclosed in the first embodiment are not described repeatedly. The following describes embodiments of the fan in further detail with reference to the accompanying drawings.

Referring to fig. 4 and 5, the blower provided in this embodiment includes an impeller 300, a motor 400, and the volute 100; wherein, the impeller 300 is disposed in the inner cavity of the volute 100, the motor 400 is connected to the volute 100 through the bracket 700, and the motor 400 is drivingly connected to the impeller 300.

It should be added that, referring to fig. 3, the side plate 130 is provided with an air outlet 131, the first air duct plate 110 is provided with a first air inlet 111, and/or the second air duct plate 120 is provided with a second air inlet 121, and the first air inlet 111, the second air inlet 121 and the air outlet 131 are all communicated with the inner cavity.

For example, the first air inlet 111 is disposed on the first air duct plate 110, or the second air inlet 121 is disposed on the second air duct plate 120, or the first air inlet 111 is disposed on the first air duct plate 110, and the second air inlet 121 is disposed on the second air duct plate 120.

Preferably, the first air inlet 111 is provided with an air inlet ring 500, and the motor 400 is arranged near the second air inlet 121. Preferably, referring to fig. 5, the motor 400 is connected to the second duct board 120 of the scroll 100 through a bracket 700.

Preferably, referring to fig. 3-5, in the present embodiment, the air outlet 131 is connected to a check valve 600.

The fan of the present embodiment has the advantages of the volute 100 of the first embodiment, which are described in detail in the first embodiment and will not be repeated here.

EXAMPLE III

The third embodiment provides a range hood, the range hood comprises the fan of the second embodiment, the technical characteristics of the fan disclosed in the second embodiment are also applicable to the second embodiment, and the technical characteristics of the fan disclosed in the second embodiment are not described repeatedly.

The lampblack absorber that this embodiment provided includes above-mentioned fan, and this lampblack absorber has further alleviated the great technical problem of noise of lampblack absorber operation in-process fan department that exists among the prior art.

The range hood of the embodiment has the advantage of the second fan, which is described in detail in the second embodiment and is not repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.