CN217402630U - Fume exhauster - Google Patents

Abstract

The utility model provides a range hood, including the wind channel, be provided with the spiral case that the axial level set up in the wind channel, the axial terminal surface of spiral case links to each other with the wind channel of spiral case periphery side through linking bridge. The axial end face of the volute is connected with the corresponding side of the air channel through the connecting support, so that the connecting position of the volute and the air channel is transferred to the left side and the right side of the volute, when the volute runs, the connecting support cannot influence an air inlet of the volute, airflow at the air inlet runs stably, and noise of the range hood is reduced; meanwhile, the occupied volume of the air duct is reduced, and the space utilization rate is improved.

Description

Fume exhauster

Technical Field

The utility model belongs to the technical field of kitchen appliance, concretely relates to lampblack absorber.

Background

With the improvement of living standard and the improvement of urbanization rate of China, the range hood is one of necessities of kitchen appliances when people decorate houses. Currently, a range hood is widely used in a kitchen and other places where food is cooked, so that oil smoke generated during cooking of the food is conveyed to the outside through the range hood. The range hood comprises a fume collecting hood, a main box body and a fan, wherein the bottom end of the main box body is connected with the fume collecting hood, and the fan is arranged in the main box body.

However, the prior art has the following defects:

air inlets are formed in the front side and the rear side of the volute, meanwhile, the front side or the rear side of the volute is connected with the air channel through the volute support, when the range hood is started, the volute support can cause the influence on air flow at the air inlets, the air flow at the air inlets is disordered, and the noise of the range hood is increased;

moreover, the spiral case support structure is comparatively simple, and when linking to each other spiral case and wind channel again, the worm wheel in the spiral case rotates and can produce the vibration, can arouse wind channel and spiral case resonance simultaneously, has further increased the noise of lampblack absorber again.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides a lampblack absorber, has solved the hookup location in spiral case and wind channel among the prior art, and the lampblack absorber leads to the big problem of noise when starting.

In order to solve the technical problem, the utility model adopts the following basic concept:

a range hood comprises an air duct, wherein a volute is arranged in the air duct in an axial horizontal mode, and the axial end face of the volute is connected with the air duct on the outer periphery side of the volute through a connecting support.

Furthermore, the connecting support is L-shaped, and two side edges of the L-shaped connecting support are respectively connected with the axial end face of the volute and the air duct side wall on the periphery side of the volute.

Furthermore, two side edges of the L-shaped connecting bracket are perpendicular to each other and respectively form a first connecting part and a second connecting part;

the first connecting part is connected with the air duct side wall on the left side or the right side of the volute and extends along the direction parallel to the axis of the volute;

the second connecting portion is attached to and connected with the rear side of the volute towards the rear portion of the range hood, and the second connecting portion extends along the volute in the radial direction.

Furthermore, the centers of the front end surface and the rear end surface of the volute are respectively provided with an air inlet, and the left side and the right side of the air inlet are respectively connected with the air duct through a connecting bracket.

Furthermore, a profiling extending along the axis is arranged on the L-shaped connecting support, the profiling is positioned in the middle of the L-shaped connecting support and protrudes towards the side wall of the air duct, and the profiling is tightly attached to the air duct.

Furthermore, the upper side and the lower side of the connecting support also comprise folding edges which are parallel to each other, and the folding edges are consistent with the extending direction of the profiling.

Further, the spiral case still includes the bounding wall, the bounding wall is half-circular arc structure, and the laminating is in the periphery of spiral case, still be provided with the one deck soundproof cotton between bounding wall and the spiral case.

Furthermore, the first connecting portion are fixed at the position close to the upper end of the surrounding plate, and the second connecting portion are fixed at the rear side of the volute.

Further, an air outlet is further formed in the upper end of the volute, flanges are arranged on the periphery of the air outlet, and the flanges are fixed with the upper end of the air duct.

Furthermore, air inlets at two sides are respectively provided with an air inlet ring.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:

1. the axial end face of the volute is connected with the corresponding side of the air channel through the connecting support, so that the connecting position of the volute and the air channel is transferred to the left side and the right side of the volute, when the volute runs, the connecting support cannot influence an air inlet of the volute, airflow at the air inlet runs stably, and noise of the range hood is reduced; meanwhile, the occupied volume of the air duct is reduced, and the space utilization rate is improved.

2. The left side and the right side of the volute are fixed with the inner periphery of the air duct, so that the distance between the front side and the rear side of the volute in the air duct is shortened, the occupied volume between the front side and the rear side of the air duct is further reduced, and the user satisfaction is improved.

3. The connecting support is provided with a convex pressing die, so that a certain gap is formed between the left side and the right side of the volute and the corresponding side of the air channel, and the volute and the air channel are prevented from generating resonance when in operation.

4. The upper and lower both sides of linking bridge are provided with the hem, and the hem parallel arrangement of each other of both sides has further increased linking bridge's intensity, and non-deformable makes its structure more stable, simultaneously, also makes fixed connection more stable between spiral case and the wind channel.

5. The periphery of the volute is also provided with a coaming, a layer of soundproof cotton is arranged between the coaming and the volute, and when the volute operates, the noise of the range hood can be further reduced.

And simultaneously, the utility model discloses simple structure, the effect is showing, suitable using widely.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is an external structure schematic diagram of a range hood in an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in an embodiment of the present invention;

FIG. 3 is a schematic view of a local explosion structure of a range hood in an embodiment of the present invention;

fig. 4 is a schematic view of a local explosion structure of a range hood without an air duct in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of the volute and the connecting bracket according to the embodiment of the present invention.

Description of the main elements in the figures: 1. an air duct; 2. a volute; 21. an air outlet; 22. flanging; 23. an air inlet; 3. connecting a bracket; 31. a first connection portion; 32. a second connecting portion; 33. profiling; 34. folding edges; 4. enclosing plates; 5. sound insulation cotton; 6. an air inlet ring.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 5, in the embodiment of the utility model, a range hood is introduced, including wind channel 1, be provided with the spiral case 2 that the axial level set up in the wind channel 1, the axial terminal surface of spiral case 2 links to each other with the wind channel 1 of 2 periphery sides of spiral case through linking bridge 3. Through the above setting, 2 axial installations of spiral case are in wind channel 1, and connect through linking bridge 3, can make the structure between spiral case 2 and the wind channel 1 more stable, and simultaneously, linking bridge 3 links to each other the axial terminal surface of spiral case 2 and the wind channel 1 of 2 periphery sides of spiral case, the left and right sides of wind channel 1 links to each other promptly, thereby shift to the left and right sides with the hookup location of spiral case 2 and wind channel 1 by the front and back side of spiral case 2, can avoid the air current disorder of 2 air intakes 23 departments of spiral case, further can reduce the produced noise of spiral case 2, improve user's use experience. Preferably, the connecting brackets 3 are at least arranged at two opposite sides of the volute 2, so that the volute 2 can be stressed uniformly, and the connection between the volute 2 and the air duct 1 is more stable.

Example one

As shown in fig. 2 and 3, in this embodiment, the connection bracket 3 is in an "L" shape, two side edges of the "L" shaped connection bracket 3 are respectively connected to an axial end surface of the volute 2 and a side wall of the air duct 1 on an outer peripheral side of the volute 2, specifically, the connection bracket 3 includes left and right sides of the volute 2, a rear side of the volute 2, and left and right sides of the air duct 1, the connection bracket 3 is attached to an outer periphery of the volute 2, and at least a portion of the connection bracket 3 is attached to an inner periphery of the air duct 1. Meanwhile, at least a portion of the connecting bracket 3 extends along the axis of the scroll casing 2, and is connected to the left and right sides of the air duct 1. Through set up linking bridge 3 in the left and right sides of spiral case 2, carry out fixed connection through linking bridge 3 and the corresponding side in wind channel 1 simultaneously, avoid linking bridge 3 to install in the front and back both sides of spiral case 2, influence the air current of air intake 23, noise reduction. At least part and the laminating setting in wind channel 1 of linking bridge 3 can increase the stability between spiral case 2 and the wind channel 1, avoids it to rock.

Among the prior art, the air intake of spiral case generally sets up both sides around the spiral case, and the front and back both sides of spiral case then link to each other with the front and back both sides of wind channel inner periphery through the spiral case support, and such fixed connection mode can produce great noise, because when the spiral case moves, the air current can be toward air intake department gathering, at the in-process toward air intake gathering, because blockking of spiral case support, can cause the air current disorder of air intake department to influence the operation of spiral case, increase the noise of spiral case, make the user produce complains about. The embodiment of the utility model provides an in, remove the mounted position of spiral case and wind channel to the left and right sides of spiral case by the front and back both sides of spiral case, linking bridge can not exert an influence to the air current of both sides air intake department around the spiral case, makes in the air current that air intake department can be steady the spiral case that gets into to further reduce the noise of spiral case, improved user satisfaction.

In addition, when the front and back side of spiral case 2 and the fixed linking to each other of the interior week front and back side in wind channel 1, spiral case support also can occupy some distances, in the embodiment of the utility model, because linking bridge 3 is located spiral case 2's the left and right sides respectively, but not front and back both sides, when again with spiral case 2 and wind channel 1 fixed connection, can reduce the distance between wind channel 1 front and back to further reduce the space volume who occupies in the family, improve space utilization. And simultaneously, the utility model provides a linking bridge 3 is similar to sheet structure, and both sides laminate respectively between spiral case 2 and wind channel 1, and the volume is less, and stable in structure can use widely.

As shown in fig. 2 to 5, in the embodiment of the present invention, the "L" shape linking bridge 3 includes the first connecting portion 31 and the second connecting portion 32 that interconnect, further, the first connecting portion 31 and the second connecting portion 32 set up perpendicularly to each other, the first connecting portion 31 of both sides respectively with spiral case 2 and the laminating setting of wind channel 1, the first connecting portion 31 extends along 2 axis parallel directions of spiral case, the second connecting portion 32 and the spiral case 2 are connected towards laminating of the rear side at the rear portion of the range hood, the second connecting portion 32 extends along 2 radial directions of spiral case. In other embodiments, the first connection portion 31 is connected to the side wall of the air duct 1 on the left side or the right side of the scroll casing 2, that is, the first connection portion 31 may be connected to only one side of the peripheral wall in the air duct 1, which also enables the scroll casing 2 to be fixed in the air duct.

The second connection portion 32 is attached to the front side or the rear side of the scroll casing 2, in this embodiment, the second connection portion 32 is attached to the rear side of the scroll casing 2, the first connection portion 31 is attached to the left and right sides of the scroll casing 2 and extends along the axial direction of the scroll casing 2, preferably, the first connection portion 31 and the second connection portion 32 are integrally formed, and the connection portion of the first connection portion 31 and the second connection portion 32 is chamfered through an arc, so that the structure of the scroll casing is more stable.

Preferably, the first connecting portions 31 of the two side connecting brackets 3 are parallel to each other and respectively attached to the left and right sides of the volute 2 to extend along the axis of the volute 2; the second connecting portions 32 on both sides are attached to the rear side or the front side of the scroll casing 2 and extend relative to the same horizontal cross section.

In this embodiment, the two connecting brackets 3 are respectively located at the left side and the right side of the volute 2, the two sides of the first connecting portion 31 are respectively fixedly connected with the volute 2 and the air duct 1 in an attaching manner, and the second connecting portion 32 is fixedly connected with the volute 2 in an attaching manner and is not fixedly connected with the air duct 1, however, in other embodiments, the two sides of the second connecting portion 32 can be respectively fixedly connected with the air duct 1 and the volute 2, so that the structure that the volute 2 is fixed in the air duct 1 is more stable.

In the embodiment of the present invention, the first connecting portions 31 on both sides are parallel to each other and respectively attached to the left and right sides of the spiral case 2 to extend along the axis of the spiral case 2, and further extend from the front side of the spiral case 2 to the back side; the second connecting portions 32 on both sides are attached to the rear side or the front side of the scroll casing 2 and extend oppositely. The first connecting portion 31 of both sides is laminated respectively in the left and right sides of spiral case 2, increases the area of contact with spiral case 2, and first connecting portion 31 extends the setting after from the front side of spiral case 2, can make the force balance of spiral case 2, and in addition, two first connecting portion 31 parallel arrangement of each other can make the fixed position of spiral case 2 in wind channel 1 be located central department, avoid producing the skew. The two second connection portions 32 are also located at the rear side of the scroll casing 2 and are oppositely arranged, and the first connection portion 31 and the second connection portion 32 are both connected with the scroll casing 2, so that the scroll casing 2 can be more stable.

As shown in fig. 2, 4 and 5, in the embodiment of the present invention, a pressing mold 33 extending along the axis is disposed on the "L" shaped connecting bracket 3, the pressing mold 33 is respectively disposed at the middle position of the "L" shaped connecting bracket 3 and protrudes toward the air duct 1, and the pressing mold 33 is tightly attached to the air duct 1. By arranging the pressing die 33, the direct attachment of the left side and the right side of the air duct 1 and the corresponding side of the volute 2 can be avoided, so that the air duct 1 and the volute 2 resonate to cause noise; the profiling 33 is protruded towards the air duct 1, and when the profiling 33 is installed, the profiling 33 is contacted with the air duct 1, so that the structure between the volute 2 and the air duct 1 is more stable. Since the die 33 is located at the middle position of the connecting bracket 3 and the first connecting portion 31 and the second connecting portion 32 are integrally formed, the die 33 of the first connecting portion 31 and the second connecting portion 32 are also integrally formed. The profiling 33 is also provided with a plurality of screw holes, the corresponding side of the air duct 1 is also provided with screw holes, when the profiling 33 is attached to the air duct 1, screws sequentially penetrate through the air duct 1 and the profiling 33 outside the air duct 1, and fixation between the volute 2 and the air duct 1 is achieved.

As shown in fig. 4 and 5, in the embodiment of the present invention, the upper and lower sides of the connecting bracket 3 further include mutually parallel folded edges 34, and the folded edges 34 are consistent with the extending direction of the profiling 33. Set up hem 34 on linking bridge 3, can make linking bridge 3's structure more stable, avoid it to warp, make the fixed connection between spiral case 2 and the wind channel 1 more stable, and simultaneously, because first connecting portion 31 and second connecting portion 32 junction are circular arc chamfer, consequently, the hem 34 of both sides also is circular arc chamfer at first connecting portion 31 and second connecting portion 32 junction about linking bridge 3, like this, when first connecting portion 31 and second connecting portion 32 form bending angle, linking bridge 3 overall structure is stable.

The embodiment of the utility model provides an in, spiral case 2 still includes bounding wall 4, bounding wall 4 is the half-circular arc structure, and the laminating is in spiral case 2's periphery, still be provided with one deck soundproof cotton 5 between bounding wall 4 and the spiral case 2. The both sides of soundproof cotton 5 laminate spiral case 2 respectively and the bounding wall 4 sets up, through set up one deck soundproof cotton 5 between spiral case 2 and bounding wall 4, can further reduce the noise that produces when the spiral case 2 moves on the original basis of spiral case 2, and the structure of bounding wall 4 is unanimous with the structure of spiral case 2 periphery, like this, can make things convenient for the assembly between bounding wall 4 and the spiral case 2.

As shown in fig. 2 to 5, in the embodiment of the present invention, the connecting brackets 3 on both sides are respectively fixed on the upper end of the enclosing plate 4, specifically, the upper ends of both sides of the enclosing plate 4 are respectively provided with the folding edge 34 toward the spiral case 2, the enclosing plate 4 has at least two screw holes at the lower end of the folding edge 34, the first connecting portion 31 is fixed at the position close to the folding edge 34, i.e. close to the upper end of the enclosing plate 4, and simultaneously, the screw holes formed by the compression molds 33 on the connecting brackets 3 correspond to the screw holes on the enclosing plate 4, and in the outside of the air duct 1, the connecting brackets are fixedly connected by screws. Meanwhile, the second connection portion 32 is fixed at the rear side of the volute 2, and the second connection portions 32 at both sides extend relatively, so that the contact area between the connection bracket 3 and the volute 2 is increased, and the structure between the volute 2 and the air duct 1 is more stable.

As shown in fig. 3 and 4, in the embodiment of the present invention, the upper end of the spiral case 2 is further provided with an air outlet 21, a flange 22 is disposed around the air outlet 21, and the flange 22 is fixed to the upper end of the air duct 1. Through the arrangement, the fixed connection between the volute 2 and the air channel 1 is further more stable. The left side and the right side of the volute 2 are connected with the corresponding sides of the air duct 1 through the connecting supports 3 on the two sides, the air outlet 21 at the upper end of the volute 2 is connected with the air duct 1 through the turned-over edge 22, and the volute 2 is fixedly connected with the air duct 1 at least at three positions, so that the stability between the volute 2 and the air duct 1 is ensured.

The embodiment of the utility model provides an in, both sides are air intake 23 around spiral case 2, and air intake 23 is seted up in the preceding of spiral case 2, the center department of rear end face, and the left and right sides of air intake 23 links to each other with wind channel 1 through a linking bridge 3 respectively. An air inlet ring 6 is respectively arranged at the air inlets 23 at the two sides. The air inlet ring 6 comprises an air inlet ring body and a plurality of airflow dividing pieces, and the air inlet ring body is provided with a fixing part and a guiding part. The fixing part is a plane, the guiding part is an arc, and the guiding part is arranged on the inner side of the fixing part and fixedly connected with the fixing part. The air flow dividing piece is fixedly arranged on the guide part of the air inlet ring body along the circumferential direction of the air inlet ring body, and can divide the air flow flowing into the volute 2 from the outside of the volute 2 into a plurality of small air flows through the air flow dividing piece, so that the air flow is restricted in the flow conversion flowing into the volute 2. Therefore, the air flow at the air inlet 23 of the wind wheel in the volute 2 is ensured to be more uniform, and the purposes of improving the efficiency of the wind wheel and reducing the noise of the wind wheel are achieved.

In this embodiment, the fixing portion, the guiding portion and the airflow dividing piece of the air inlet ring body are formed by injection molding, that is, the fixing portion, the guiding portion and the airflow dividing piece of the air inlet ring body are integrally formed. In other embodiments, the fixing portion and the guiding portion of the air inlet ring body, or the airflow dividing piece and the guiding portion of the air inlet ring body may be formed by welding.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change or modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims (10)

1. The utility model provides a range hood, includes wind channel (1), be provided with spiral case (2) that axial level set up in wind channel (1), its characterized in that, the axial terminal surface of spiral case (2) links to each other with wind channel (1) of spiral case (2) periphery side through linking bridge (3).

2. A range hood according to claim 1, characterized in that the connecting bracket (3) is L-shaped, and two side edges of the L-shaped connecting bracket (3) are respectively connected with the axial end surface of the volute (2) and the side wall of the air duct (1) at the outer peripheral side of the volute (2).

3. A range hood as claimed in claim 2, characterized in that the two sides of the L-shaped connecting bracket (3) are perpendicular to each other and are respectively a first connecting part (31) and a second connecting part (32);

the first connecting part (31) is connected with the side wall of the air duct (1) at the left side or the right side of the volute (2), and the first connecting part (31) extends along the parallel direction of the axis of the volute (2);

second connecting portion (32) are laminated with rear side at spiral case (2) orientation lampblack absorber rear portion and are connected, and second connecting portion (32) radially extend along spiral case (2).

4. A range hood according to any one of claims 1 to 3, characterized in that the centers of the front and rear end faces of the volute (2) are respectively provided with an air inlet (23), and the left and right sides of the air inlet (23) are respectively connected with the air duct (1) through a connecting bracket (3).

5. A range hood according to claim 3, wherein a profiling (33) extending along the axis is arranged on the L-shaped connecting support (3), the profiling (33) is positioned in the middle of the L-shaped connecting support (3) and protrudes towards the side wall of the air duct (1), and the profiling (33) is tightly attached to the air duct (1).

6. A range hood as claimed in claim 5, wherein the upper and lower sides of the connecting bracket (3) further comprise mutually parallel folded edges (34), and the extending directions of the folded edges (34) and the profiled sections (33) are consistent.

7. A range hood according to claim 1, characterized in that the spiral case (2) further comprises a coaming (4), the coaming (4) is of a semi-circular arc structure and is attached to the periphery of the spiral case (2), and a layer of soundproof cotton (5) is further arranged between the coaming (4) and the spiral case (2).

8. A kitchen ventilator according to claim 3 or 7, characterised in that the first connection (31) is fixed close to the upper end of the surrounding plate (4) and the second connection (32) is fixed at the rear side of the volute (2).

9. A range hood according to any one of claims 1 to 3, characterized in that an air outlet (21) is further provided at the upper end of the volute (2), a turned-over edge (22) is provided around the air outlet (21), and the turned-over edge (22) is fixed to the upper end of the air duct (1).

10. A range hood according to claim 4, characterized in that an air inlet ring (6) is arranged at each of the air inlets (23) at both sides.

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