CN217381014U - Volute fan and range hood - Google Patents

Abstract

The utility model relates to a spiral case fan, include: a housing having a hollow interior to form an air flow passage; the impeller assembly is accommodated in the shell; wherein, the shell is provided with an air inlet and an air outlet, and the air inlet is inwards sunken; the airflow channel is at least divided into an air inlet channel and an air outlet channel; when the impeller assembly works, gas enters the shell from the air inlet, flows along the gas flow channel and is finally discharged from the air outlet; the sectional area of the air outlet channel is gradually increased along the flowing direction of the air in the air outlet channel. The utility model discloses still relate to a lampblack absorber. Through the area of increase air intake, air outlet, the business turn over wind ability of effectual assurance fan, and then the maximum amount of wind of assurance fan.

Description

Volute fan and range hood

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lampblack absorber field, concretely relates to spiral case fan, still concretely relates to lampblack absorber.

[ background of the invention ]

At present, the arrangement mode of partial range hood fans on the market is horizontal, but the defect of the arrangement mode is that the middle part of the arrangement mode needs to be provided with a horizontally arranged impeller, so that the thickness of the part for installing the impeller is obviously thickened. When the impeller is reduced to design and grow the thickness of the part where the impeller is installed to be consistent with the thickness of other parts of the range hood, the air inlet and outlet capacity of the fan is reduced, and the maximum air volume of the fan is further influenced.

[ Utility model ] content

An object of the utility model is to provide a spiral case fan, it is through enlarging air intake, air outlet to guarantee the business turn over wind ability of fan

The utility model provides a spiral case fan, include:

a housing having a hollow interior to form an air flow passage; and

an impeller assembly housed inside the casing;

wherein, the shell is provided with an air inlet and an air outlet, and the air inlet is inwards sunken; the airflow channel is at least divided into an air inlet channel and an air outlet channel; when the impeller assembly works, gas enters the shell from the air inlet, flows along the gas flow channel and is finally discharged from the air outlet; the sectional area of the air outlet channel is gradually increased along the flowing direction of the air in the air outlet channel.

Preferably, the air inlet is arranged on the surface of the shell, and the air outlet is arranged on the side surface of the shell;

the side surface of the shell is also provided with a volute oil hole, and the volute oil hole and the air outlet are arranged on two opposite side surfaces of the shell.

Preferably, the housing comprises an upper volute and a lower volute, and the upper volute and the lower volute are spliced to form the housing;

the air outlet is arranged on the upper surface of the upper volute, the upper surface of the upper volute is divided into an air inlet end and an air outlet end by the axis of the impeller assembly, and the air outlet end is one end close to the air outlet.

Preferably, the air outlet end bulges outwards gradually towards the air outlet, so that the sectional area of the air outlet channel is gradually increased along the flowing direction of air in the air outlet channel.

Preferably, the air inlet end is concave, so that the upper surface of the upper volute casing is V-shaped.

Preferably, the air outlet of the housing is provided with a connecting smoke pipe, the connecting smoke pipe is provided with a pipe orifice, and the pipe orifice is connected with a smoke pipe in the range hood.

Preferably, the orifice is circular or oval.

The utility model also provides a range hood, include as above-mentioned spiral case fan.

Preferably, the range hood further includes:

a casing, in which a volute fan is arranged;

the oil net is covered on the air inlet; and

an oil tank for collecting oil smoke;

the volute fan and the oil screen are arranged on two sides of the air inlet shell;

an oil guide groove is arranged on one side of the air inlet shell, which is provided with the oil screen, and oil smoke is condensed on the oil screen and then flows into the oil groove along the oil guide groove.

Preferably, the air outlet is disposed vertically upward, the oil groove is located at the lowest point position in the vertical direction of the casing, and the volute oil hole on the housing is disposed vertically downward such that the volute oil hole faces the oil groove.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a pair of spiral case fan when guaranteeing the thickness of installation impeller part department fan, the sectional area through the air-out passageway designs into towards the air outlet direction crescent for guaranteed at the air-out in-process that the air-out passageway has not been obviously compressed, and simultaneously, the air intake is inwards sunken in order to increase the air intake area, can the effectual air inlet ability of guaranteeing the fan, thereby guaranteed the maximum amount of wind of ability in order to increase this spiral case fan of airing exhaust.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic perspective view of a volute fan according to an embodiment of the present invention;

fig. 2 is a side view of a volute blower in an embodiment of the invention;

fig. 3 is a perspective view of the volute fan and the connecting smoke tube according to the first embodiment of the present invention;

FIG. 4 is a perspective view of the second embodiment of the present invention showing the installation of the volute fan and the connecting smoke tube;

fig. 5 is a schematic perspective view of a range hood according to an embodiment of the present invention;

fig. 6 is an explosion diagram of the range hood in a specific embodiment of the present invention;

FIG. 7 is an enlarged partial schematic view of FIG. 6;

fig. 8 is a schematic view of a part of the structure of the range hood according to an embodiment of the present invention;

FIG. 9 is an enlarged partial schematic view of FIG. 8;

fig. 10 is a schematic perspective view of an air intake housing according to an embodiment of the present invention;

fig. 11 is a first perspective cross-sectional view of a range hood in an embodiment of the present invention;

FIG. 12 is an enlarged partial schematic view of FIG. 11;

fig. 13 is a second perspective cross-sectional view of the range hood in an embodiment of the present invention;

FIG. 14 is an enlarged partial schematic view of FIG. 13;

fig. 15 is an internal structure diagram of the range hood in a specific embodiment of the present invention.

Description of reference numerals:

1-a fan;

11-upper volute; 111-upper surface; 1111-air inlet end; 1112-an air outlet end;

12-a lower volute; 121-volute oil hole;

13-air inlet;

14-air outlet;

15-an impeller assembly;

21-connecting a smoke pipe; 211-a first orifice; 212-a second nozzle;

31-a housing;

32-a flap;

33-oil network;

34-an air intake housing;

341-grooves; 3411-oil-guiding oblique splitting;

342-oil hole; 343-oil leakage grooves; 344-impeller side; 345-a limiting block;

35-a bottom plate; 351-a first notch; 352-second notch; 353, a positioning block;

36-hanging the board;

37-a hinge assembly; 371 — a push rod; 372-a mounting block;

41-oil groove; 411-an escape portion.

[ detailed description ] embodiments

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the following embodiments or technical features can be used to form a new embodiment without conflict. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Referring to fig. 1-15, the present invention provides a range hood, which comprises a volute fan, a casing 31, an oil screen 33 and an oil groove 41; the volute fan is arranged in the shell 31, in the scheme, the shell 31 is hung on the wall side wall, and the direction of the air inlet 13 of the volute fan is vertical to the wall side wall of the installation shell 31; the oil screen 33 is covered on the air inlet 13, and most of oil smoke is blocked outside the volute fan; the oil groove 41 is used for collecting oil smoke, and the condensed oil smoke is in a liquid state and finally flows into the oil groove 41 under the action of self gravity;

in a preferred embodiment, the volute blower comprises: a housing having a hollow interior to form an air flow passage; and an impeller assembly 15 housed inside the casing;

wherein, the shell is provided with an air inlet 13 and an air outlet 14, the air inlet 13 is sunken inwards, so that the area of the air inlet 13 is increased; the airflow channel is at least divided into an air inlet channel and an air outlet channel, specifically, the part from the air inlet 13 to the impeller assembly 15 inside the shell is used as the air inlet channel, and the part from the impeller assembly 15 to the air outlet 14 inside the shell is used as the air outlet channel; when the impeller assembly 15 works, gas enters the inside of the housing from the air inlet 13, flows along the air flow channel and is finally discharged from the air outlet 14; the sectional area of the air outlet channel is gradually increased along the flowing direction of the air in the air outlet channel. By increasing the areas of the air inlet 13 and the air outlet 14, the air outlet channel is not obviously compressed in the air outlet process, and the air inlet and outlet capacity of the fan can be effectively ensured, so that the air exhaust capacity is ensured to increase the maximum air quantity of the volute fan, the requirements of large flow and high air pressure of the fan in the range hood are met, and the smoke absorption effect of the range hood is close to or similar to the level of an integrated stove; compared with an integrated cooker, the range hood is troublesome to install and maintain, and the range hood and the cooker are independently arranged, so that the range hood is convenient to replace or install. On the other hand, because the volute fan is adopted in the range hood, the thickness of the range hood can be effectively reduced, the space occupation ratio of the range hood is reduced, and the risk that the range hood collides with the range hood due to the fact that the range hood interferes with the head of a human body is effectively avoided.

The air inlet 13 is arranged on the surface of the shell, in the scheme, the air inlet 13 is arranged on the upper surface of the shell, and the air outlet 14 is arranged on the side surface of the shell;

the side of the housing is further provided with a volute oil hole 121, and the volute oil hole 121 and the air outlet 14 are arranged on two opposite side surfaces of the housing, so that when the air outlet 14 is arranged upwards, the volute oil hole 121 is located at the lowest position of the housing, so that the oil smoke penetrating into the housing from the oil mesh 33 can be finally gathered to the volute oil hole 121 for discharging after condensation, and the oil smoke is prevented from being deposited inside the housing, so that the inside of the housing is ensured to be clean.

Further, the housing comprises an upper volute 11 and a lower volute 12, the upper volute 11 and the lower volute 12 are spliced to form the housing, and the volute fan is convenient to assemble; the air outlet 14 is disposed on the upper surface 111 of the upper volute 11, the upper surface 111 of the upper volute 11 is divided into an air inlet end 1111 and an air outlet end 1112 by the axis of the impeller assembly 15, and the air outlet end 1112 is an end close to the air outlet 14. The air outlet end 1112 gradually bulges outward toward the air outlet 14, so that the sectional area of the air outlet channel gradually increases along the flowing direction of the air therein, the air inlet end 1111 is concave, so that the upper surface 111 of the upper volute 11 is V-shaped, the air inlet 13 is concave inward due to the V-shaped upper surface 111, and the center of the air inlet 13 is located on the axis of the impeller assembly 15.

Furthermore, the casing 31 includes a bottom plate 35 and an air inlet casing 34, the air inlet casing 34 is connected with the upper surface 111 of the volute blower in a matching manner, and the volute blower and the oil screen 33 are arranged on two sides of the air inlet casing 34; one side of the air inlet shell 34 close to the volute fan is an impeller side surface 344, the impeller side surface 344 is V-shaped, and the impeller side surface 344 is attached to the upper surface 111;

an oil guiding groove is arranged on one side of the air inlet shell 34, which is provided with the oil screen 33, and oil smoke is condensed on the oil screen 33 and then flows into the oil groove 41 along the oil guiding groove.

An annular limiting block 345 protruding outwards is arranged on the impeller side 344, and when the air inlet casing 34 is connected with the upper surface 111 in a matching manner, the limiting block 345 is embedded into the air inlet 13 to limit the position relationship between the air inlet casing 34 and the volute fan.

Specifically, when the volute fan is mounted in the casing 31, the air outlet 14 is disposed vertically upward, the oil groove 41 is located at the lowest point position in the vertical direction of the casing 31, and the volute oil hole 121 on the casing is disposed vertically downward such that the volute oil hole 121 faces the oil groove 41. The air inlet shell 34 is provided with a groove 341, the groove 341 is arranged on the other side surface opposite to the side surface 344 of the impeller, the oil net 33 is arranged in the groove 341, the side wall of the groove 341 at least comprises an oil guiding oblique wedge 3411 serving as an oil guiding groove, and the oil guiding oblique wedge 3411 is in a V shape; when the volute fan is installed in the casing 31, an oil hole 342 is opened at the lowest point in the vertical direction of the oil guide oblique 3411, so that the condensed oil smoke flows down along the oil guide oblique 3411 through the oil hole 342 and finally flows into the oil groove 41.

An oil leakage groove 343 is arranged under the oil hole 342, so that condensed oil smoke passes through the oil hole 342 and flows into the oil leakage groove 343, the oil leakage groove 343 is of a groove structure formed by bending metal plates below the oil hole 342 on the air inlet shell 34, a first notch 351 and a second notch 352 are formed in the bottom plate 35, the first notch 351 is arranged under the oil leakage groove 343, and the second notch 352 is arranged under the volute oil hole 121, so that the condensed oil smoke finally flows into the oil groove 41.

It should be noted that the volute oil hole 121 and the oil hole 342 at the bottom of the volute are leaked, and when the oil groove 41 is drawn out, the volute oil hole 121 and the oil hole 342 can be cleaned by hand; therefore, the volute oil hole 121 and the oil hole 342 do not need to be as large as the conventional design, and the oil holes with small areas can reduce air loss, so that the air volume and the air pressure of the outlet of the range hood are ensured. The oil hole 342 and the oil leakage groove 343 avoid the zero retention of condensed oil and condensed water between the lower decorative glass and the air inlet channel, and can prevent the problem that the oil smoke at the part cannot be cleaned after long-term use.

In a preferred embodiment, an opening is formed on the front plate of the casing 31, the opening is disposed corresponding to the oil screen 33, a turning plate 32 is hinged at the opening position, the opening can be opened and closed by rotating the turning plate 32, and when the casing is required to be used, the turning plate 32 is turned to expose the oil screen 33, so as to protect the internal structure of the casing 31. Specifically, a hinge assembly 37 is arranged in the turning plate 32, the hinge assembly 37 comprises a push rod 371 and an installation block 372, the push rod 371 is installed on the turning plate 32 and penetrates through the air inlet shell 34 to extend into the interior of the machine shell 31, the installation block 372 is installed in the interior of the machine shell 31, although not shown in the figure, transmission is arranged between the push rod 371 and the installation block 372, the push rod 371 drives the turning plate 32 to move, an opening mode that the single hinge turning plate 32 is matched with one push rod 371 is adopted, and the simplest operation reliability of a mechanism design form is the highest.

Two hanging plates 36 are arranged on the back plate of the casing 31 relative to the front plate, the two hanging plates 36 are arranged near the air outlet 14, the two hanging plates 36 are mainly used for bearing the weight of the whole machine, and in order to ensure the flash seams after the assembly of the installed beautiful wall surface and avoid the head of the expansion screw, the back plate of the casing 31 is provided with an inward sunken avoiding groove. The hanging plate 36 of the back plate is flanged inwards and is pasted with a rubber buffer pad for cutting off the vibration conduction between the hanging and the whole machine. Rubber plugs are adopted between the hanging plate 36 and expansion screws of the wall body and the wall body to avoid shock and avoid rigid vibration conduction.

A positioning block 353 is mounted on the bottom plate 35 and used for positioning the mounting position of the range hood, and an inward concave avoidance portion 411 is formed at the rear portion of the oil groove 41 and can effectively avoid the positioning block 353.

Furthermore, a connecting smoke pipe 21 is installed at the air outlet 14 of the housing, a pipe opening is formed in the connecting smoke pipe 21, the pipe opening is connected to the smoke pipe in the range hood, the connection between the volute fan and the outward smoke pipe of the range hood is achieved through the connecting smoke pipe 21, and therefore gas sucked by the volute fan is discharged outwards from the range hood to the outward smoke pipe.

In the first embodiment, the nozzles include the first nozzle 211, the first nozzle 211 is circular, and the first nozzle 211 has higher fan efficiency;

in the second embodiment, the nozzle includes a second nozzle 212, the second nozzle 212 is oval, and the second nozzle 212 can satisfy the requirement of long-distance shielding installation to ensure the consistency of exposed dimensions. The user can select the method according to the actual condition at home. The matching of any pipe orifice in the two embodiments can ensure the beautiful adaptation of the maximum user.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

Claims (10)

1. A volute blower, comprising:

a housing having a hollow interior to form an air flow passage; and

an impeller assembly (15) housed inside the casing;

wherein, the shell is provided with an air inlet (13) and an air outlet (14), and the air inlet (13) is inwards sunken; the airflow channel is at least divided into an air inlet channel and an air outlet channel; when the impeller assembly (15) works, gas enters the interior of the shell from the air inlet (13), flows along the air flow channel and is finally discharged from the air outlet (14); the sectional area of the air outlet channel is gradually increased along the flowing direction of air in the air outlet channel.

2. The volute blower of claim 1, wherein the inlet opening (13) is provided in a surface of the housing and the outlet opening (14) is provided in a side surface of the housing;

the volute oil hole (121) is further formed in the side face of the shell, and the volute oil hole (121) and the air outlet (14) are formed in the two opposite side faces of the shell.

3. The volute blower of claim 2, wherein the housing comprises an upper volute (11) and a lower volute (12), the upper volute (11) and the lower volute (12) forming the housing by being spliced;

the air outlet (14) is arranged on the upper surface (111) of the upper volute (11), the upper surface (111) of the upper volute (11) is divided into an air inlet end (1111) and an air outlet end (1112) by the axis of the impeller assembly (15), and the air outlet end (1112) is close to one end of the air outlet (14).

4. The volute blower of claim 3, wherein the outlet end (1112) is tapered outwardly toward the outlet opening (14) such that the cross-sectional area of the outlet passage increases in the direction of flow of the gas therein.

5. The volute blower of claim 4, wherein the air inlet end (1111) is recessed such that the upper surface (111) of the upper volute (11) is V-shaped.

6. The volute blower according to any of the claims 1-5, wherein a connecting smoke pipe (21) is installed at the air outlet (14) of the housing, and a pipe orifice is arranged on the connecting smoke pipe (21) and connected to a smoke pipe in a range hood.

7. The volute blower of claim 6, wherein the nozzle is circular or oval.

8. A range hood, characterized by comprising a volute fan according to any one of claims 1-7.

9. The range hood of claim 8, further comprising:

a casing (31) in which the volute fan is disposed;

the oil screen (33) is covered on the air inlet (13); and

an oil groove (41) for collecting oil smoke;

the volute fan and the oil net (33) are arranged on two sides of the air inlet shell (34);

an oil guide groove is formed in one side, where the oil net (33) is installed, of the air inlet shell (34), and oil smoke is condensed on the oil net (33) and then flows into the oil groove (41) along the oil guide groove.

10. A hood, as set forth in claim 9, characterized in that said air outlet (14) is disposed vertically upward, said oil groove (41) is located at the lowest point position in the vertical direction of said casing (31), and said volute oil hole (121) on said casing is disposed vertically downward such that said volute oil hole (121) faces said oil groove (41).

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