CN209026883U - Range hood - Google Patents

Abstract

The utility model proposes a kind of range hood, including for hanging fixed cabinet and can generate the blower of suction, which is hollow structure, which is contained in the cavity of the cabinet；The blower includes hollow spiral shell and the wind wheel that is contained in the cavity of the shell；The shell offers air inlet and air outlet, and wherein the air inlet is located at spiral center；The cabinet include suspension face and with suspension face inclination and spaced air draught face, which is face symmetrical structure and its plane of symmetry perpendicular to the air draught face；The geometric center of the air inlet and the geometric center of the air outlet are located at the two sides of the plane of symmetry, and the vertical range L between the geometric center of the air inlet and the plane of symmetry meets following formula: L=A*r, wherein, the value range of proportionality coefficient A is in the radius that 0.25~0.8, r is wind wheel.Compared with prior art, the air draught effect of the range hood is more balanced.

Description

Range hood

Technical field

The utility model relates to field of household appliances more particularly to a kind of range hoods.

Background technique

It is for aesthetic purpose, usually in the horizontal direction that range hood is opposite with kitchen range in modern kitchen finishing Installation placed in the middle.Existing range hood mostly uses greatly centrifugal fan, and the air inlet of blower is also opposite with kitchen range sets between two parties It sets, has the following deficiencies: the air draught of big, far from air outlet the side of suction air volume of the air inlet close to the side of the air outlet of blower It measures small, causes the ambilateral smoke absorption effect of cooking process medium mess inconsistent or even widely different, make troubles to user.

Utility model content

The purpose of the utility model is to provide a kind of range hoods of air draught effects equalizer.

To achieve the goals above, the utility model provides a kind of range hood, including for hang fixed cabinet and The blower of suction can be generated, which is hollow structure, which is contained in the cavity of the cabinet；The blower includes hollow Spiral shell and the wind wheel that is contained in the cavity of the shell；The shell offers air inlet and air outlet, wherein The air inlet is located at spiral center；The cabinet include suspension face and with the suspension face inclination and spaced air draught face, the case Body is face symmetrical structure and its plane of symmetry is perpendicular to the air draught face；The geometric center of the air inlet and the geometric center of the air outlet The two sides of the plane of symmetry are located at, and the vertical range L satisfaction between the geometric center of the air inlet and the plane of symmetry is following Formula: L=A*r, wherein the value range of proportionality coefficient A is in the radius that 0.25~0.8, r is wind wheel.

Preferably, which offers the side of the air inlet and the air draught face interval is oppositely arranged；From the air draught face Side is faced, and the geometric center of the air outlet is located at the upper left side of the air inlet geometric center, which is in rotate clockwise.

Preferably, which offers the side of the air inlet and the air draught face interval is oppositely arranged；From the air draught face Side is faced, and the geometric center of the air outlet is located at the upper right side of the air inlet geometric center, and the wind wheel is in rotation counterclockwise.

Preferably, which further includes multiple sides for connecting the suspension face Yu the air draught face, and the blower is fixed to be connected It is connected to the suspension face and the side.

Preferably, which offers air draught porose area, which is symmetrical arranged relative to the plane of symmetry of the cabinet.

Preferably, which further includes the oil network being installed at the air draught porose area.

Preferably, the air inlet is rounded, and the center of circle of the air inlet, the shell spiral center with the rotation of the wind wheel Shaft is located along the same line.

Preferably, which is forward multiple wing centrifugal formula blower.

Compared with prior art, range hood provided by the utility model improves the equal of air draught effect by blower biasing Weighing apparatus property.The geometric center of the geometric center of the air inlet of blower and air outlet is respectively arranged to the two sides of the plane of symmetry of cabinet, And the vertical range between the geometric center of air inlet and the plane of symmetry of cabinet is made to meet certain proportionate relationship, to make blower Suction center be located on the plane of symmetry of cabinet.Simple, the smoke absorption effect advantages such as more preferably with structure.

Detailed description of the invention

Fig. 1 is front schematic view when range hood provided by the embodiment of the utility model is installed and used with cooking stove.

Fig. 2 is the side perspective view of range hood shown in FIG. 1.

Fig. 3 is the structural schematic diagram of the blower of range hood shown in FIG. 1.

Fig. 4 is the structural schematic diagram of the blower of another embodiment of the utility model.

Main element symbol description

Range hood	100
		Cabinet	10
Suspension face	11
		Air draught face	12
Side	13
		The plane of symmetry	14
Air draught porose area	121
		Wind inlet	1211
Blower	20、30
		Shell	21、31
Air inlet	211、311
		Air outlet	212、312
Wind wheel	22、32
		Oil network	40
Cooking stove	200

The following detailed description will be further explained with reference to the above drawings the utility model.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The all other embodiment obtained, fall within the protection scope of the utility model.

It should be noted that it can be directly to separately when an element is considered as " connection " another element One element may be simultaneously present the element being centrally located.When an element is considered as " setting exists " another element, It, which can be, is set up directly on another element or may be simultaneously present the element being centrally located.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specifically embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes Any and all combinations of one or more related listed items.

Referring to Fig. 1, the utility model provides a kind of range hood 100, for being mounted on 200 top of cooking stove in kitchen, The oil smoke that cooking stove 200 when culinary art generates can be siphoned away rapidly, outdoor is discharged, to reduce indoor pollution.It should be noted that going out In the aesthetic feeling of the design the considerations of, range hood 100 and the installation relatively placed in the middle in the horizontal direction of cooking stove 200.

Referring to Figure 2 together, in one embodiment, range hood 100 includes for hanging the case being fixed on metope Body 10 and can generate fume-exhausting suction blower 20.Cabinet 10 is hollow structure, and blower 20 is contained in the cavity of cabinet 10 In.

Specifically, cabinet 10 include for hang the suspension face 11 being fixed on metope, relative to suspension face 11 inclination and Spaced air draught face 12 and the multiple sides 13 for connecting suspension face 11 and air draught face 12.Suspension face 11, air draught face 12 and more A side 13 surrounds the cavity of cabinet 10.

Further, cabinet 10 is face symmetrical structure and its plane of symmetry 14 (see Fig. 3 and Fig. 4) is perpendicular to air draught face 12, can To understand, the plane of symmetry 14 is not the face of necessary being.The air draught face 12 of cabinet 10 offers air draught porose area 121, for beauty, inhales Air holes area 121 is symmetrical arranged relative to the plane of symmetry 14 of cabinet 10.In the present embodiment, air draught porose area 121 is by multiple strips The arrangement composition of wind inlet 1211, but not limited to this, the shape of multiple wind inlets 1211 and arrangement can be according to air draught effect and beauties Degree does various change design.

Referring to Fig. 3, blower 20 includes hollow shell 21 and the wind wheel 22 being contained in the cavity of shell 21.Specifically Ground, shell 21 in the shape of a spiral and offer air inlet 211 and air outlet 212, wherein air inlet 211 is opened in the spiral shell of shell 21 Rotation center, air outlet 212 are opened in protrusion of the shell 21 far from spiral center.

When practical application, cabinet 10 can by suspension face 11 against and be fixedly installed on metope, meanwhile, blower 20 can lead to The suspension face of mistake 11 and side 13 are fixedly connected with cabinet 10, and shell 21 offers side and the cabinet 10 of air inlet 211 The interval of air draught face 12 is oppositely arranged.

The working principle of blower 20 is: 22 driven rotation of wind wheel (such as driving by motor) makes the cavity of shell 21 Middle generation negative pressure, to the oil smoke in outside air be sucked by air draught porose area 121 from air inlet 211, then from air outlet 212 discharges.In one embodiment, air inlet 211 is rounded, and the center of circle of air inlet 211, shell 21 spiral center with The rotary shaft of wind wheel 22 is located along the same line.

In the present embodiment, the suction center of blower 20 is from the geometric center of air inlet 211 to a lateral deviation of air outlet 212 It moves, the suction of blower 20 is centrally disposed on the plane of symmetry 14 of cabinet 10, can be avoided 200 two sides smoke absorption effect of cooking stove not Balanced phenomenon.Because the maximum point in the suction center of blower 20, i.e. suction, is not the geometric center of air inlet 211.

Specifically, as shown in figure 3, blower 20 is biased by the range hood 100 of the present embodiment, i.e., by air inlet 211 Geometric center and air outlet 212 geometric center be respectively arranged at cabinet 10 the plane of symmetry 14 two sides, and make air inlet Vertical range L between 211 geometric center and the plane of symmetry 14 meets following formula: L=A*r, wherein proportionality coefficient A's takes It is worth range in the radius that 0.25~0.8, r is wind wheel 22.The occurrence of proportionality coefficient A can accurately be adjusted by related experiment It is whole, to guarantee that the suction center of blower 20 is located on the plane of symmetry 14 of cabinet 10.

It is worth noting that, the direction of rotation of wind wheel 22 can have an impact the offset orientation of blower 20.In the present embodiment, It is faced from the side in air draught face 12, for wind wheel 22 in rotating clockwise, the geometric center of air outlet 212 is located at the several of air inlet 211 The upper left side at what center, blower 20 must be to right-hand offsets, i.e. the geometric center of air inlet 211 right side that is located at the plane of symmetry 14 of cabinet 10 Side.

Referring to Fig. 4, in another embodiment, blower 30 is roughly the same with 20 structure of blower in a upper embodiment, The wind wheel 32 for including equally hollow shell 31 and being contained in the cavity of shell 31, shell 31 in the shape of a spiral and offer and are located at The air inlet 311 of spiral center and be located remotely from spiral center protrusion air outlet 312.In blower 30 and a upper embodiment Blower 20 the difference is that: faced from the side in air draught face 12, wind wheel 32 in counterclockwise rotation, the geometry of air outlet 312 Center is located at the upper right side of the geometric center of air inlet 311, and therefore, blower 30 must bias to the left, i.e., in the geometry of air inlet 311 The heart is located at the left side of the plane of symmetry 14 of cabinet 10.

Please continue to refer to Fig. 2 and Fig. 3, range hood 100 further includes the oil network 40 being installed at air draught porose area 121.It can be with Understand, oil network 40 is one of barrier of isolating oil soot, plays certain catharsis to the oil smoke entered in blower 20, avoids Oil smoke deposits in blower 20, influences 22 revolving speed of wind wheel to influence air draught effect.In addition, oil network 40 can also be to the wind of biasing Machine 20 play it is certain block decoration function, avoid damage to the integrated symmetric aesthetic feeling of range hood 100 in appearance.

Further, blower 20 is preferably forward multiple wing centrifugal formula blower.Existing range hood 100 is according to blower 20 Type can be divided into axial-flow type and centrifugal, wherein the advantage that centrifugal fan has wind pressure big, therefore, suction currently on the market Kitchen ventilator 100 all uses centrifugal fan 20 substantially.

In addition, those skilled in the art can also do other variations within the spirit of the present invention, certainly, these are according to this reality The variation made of novel spirit should all be included in the utility model range claimed.

Claims (8)

1. a kind of range hood, including for hanging fixed cabinet and can generate the blower of suction, which is hollow knot Structure, the blower are contained in the cavity of the cabinet, it is characterised in that: the blower includes hollow spiral shell and receiving Wind wheel in the cavity of the shell；The shell offers air inlet and air outlet, and wherein the air inlet is located at spiral center；It should Cabinet include suspension face and with the suspension face inclination and spaced air draught face, the cabinet be face symmetrical structure and its plane of symmetry Perpendicular to the air draught face；The geometric center of the air inlet and the geometric center of the air outlet are located at the two sides of the plane of symmetry, And the vertical range L between the geometric center of the air inlet and the plane of symmetry meets following formula: L=A*r, wherein ratio system The value range of number A is in the radius that 0.25~0.8, r is wind wheel.

2. range hood as described in claim 1, it is characterised in that: the shell offers side and air draught of the air inlet Face interval is oppositely arranged；It is faced from the side in the air draught face, the geometric center of the air outlet is located at the air inlet geometric center Upper left side, the wind wheel are in rotate clockwise.

3. range hood as described in claim 1, it is characterised in that: the shell offers side and air draught of the air inlet Face interval is oppositely arranged；It is faced from the side in the air draught face, the geometric center of the air outlet is located at the air inlet geometric center Upper right side, the wind wheel is in rotation counterclockwise.

4. range hood as described in any one of claims 1-3, it is characterised in that: the cabinet further includes for connecting the suspension Multiple sides in face and the air draught face, the blower are fixedly connected on the suspension face and the side.

5. range hood as claimed in claim 4, it is characterised in that: the air draught face offers air draught porose area, the air draught porose area The plane of symmetry relative to the cabinet is symmetrical arranged.

6. range hood as claimed in claim 5, it is characterised in that: further include the oil network being installed at the air draught porose area.

7. range hood as described in claim 1, it is characterised in that: the air inlet is rounded, and the center of circle of the air inlet, should The spiral center of shell is located along the same line with the rotary shaft of the wind wheel.

8. range hood as described in claim 1, it is characterised in that: the blower is forward multiple wing centrifugal formula blower.