CN207539968U - A kind of range hood - Google Patents

Abstract

The utility model discloses a kind of range hoods, and including cabinet and the wind turbine of horizontal arrangement being arranged in cabinet, air duct is formed in the cabinet, it is characterised in that：The wind turbine is ternary wind turbine, and the wind turbine is arranged on the top above air duct and in cabinet, and the cabinet is interior, the inlet in air duct is provided with rotary sieve.By setting horizontal ternary wind turbine, and rotary sieve at the tunnel inlet in cabinet is set, can cause oil smoke with relatively low flow velocity by rotary sieve, the time to contact with each other between the two is longer, oil smoke can be caused fully to be collided with rotary sieve, so as to reach preferable filter effect；Control the spacing between wind turbine and rotary sieve, it is ensured that oil smoke swimmingly enters wind turbine, while avoids rotary sieve beyond the greatest limit of the negative pressuren zone of wind turbine.

Description

A kind of range hood

Technical field

The utility model is related to machine for kitchen use, especially a kind of range hood.

Background technology

Range hood has become one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top Suction and near-absorption type, the range hood of top suction type utilize the principle that hot gas rises, and suction is generated when cooking to be risen naturally Oil smoke, additionally due to it is clean and tidy light and handy, occupy little space the advantages that, it is and in an increasingly wide range of applications.

Existing range hood can be equipped with filter screen for the purpose of collecting the oil smoke generated in cooking, flue dust etc.. A kind of smoke exhaust ventilator as disclosed in the Chinese patent application No. is 200780027956.9 has duct-ventilated hood, set on logical Exhaust fan in air duct, the filter screen in ventilating duct and before exhaust fan, driving portion are connected on filter screen；For another example Application No. is 201620110299.0 Chinese patent disclosed in a kind of tablet smoke exhaust ventilator, including smoke collecting chamber, be arranged on collection cigarette Air duct above chamber, wind turbine, the lampblack filter being arranged in air duct, lampblack filter include coaxial mounted with wind turbine Filter screen disk, filter screen disk include the supporting rack being connect with fan shaft and the filter screen being fixed on supporting rack.

Above-mentioned range hood by installing the filter screen of rotation, can be expeditiously carried out at purification filtering oil smoke Reason and decomposition.However, in the range hood of top suction type, the arrangement of above-mentioned wind turbine causes oil smoke air-flow that can not realize directly It inhales in line, therefore increases windage, reduce smoking efficiency.

For another example application No. is 98202073.2 Chinese patent disclosed in a kind of smoke exhaust ventilator rotation net purifier, taking out Swing frame is fixed on the motor shaft of kitchen ventilator wind wheel mouth, purse seine is welded around swing frame, on the inside of swing frame and purse seine, uses snap ring A rotation net is fixed, wind wheel, swing frame, rotation net, purse seine is driven to rotate by motor, the rotation net of rotation carries out slag, oil, gas to oil smoke Three detaches.Although this pumping smoke extractor, it can realize and directly inhale in line, however similar with above-mentioned vertical or tilting wind turbine, rotation The air inlet of centrifugal blower can only be arranged on by turning strainer, motor or individual motor-driven rotation by centrifugal blower, thus Not only result in larger windage, and rotary sieve play the role of certain broken whirlpool to oil smoke after enter centrifugal blower immediately Interior, path is too short, and rotary sieve makes the effect of airflow smooth not embody farthest.

Utility model content

Technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing a kind of raising The range hood of fume-exhausting efficiency and oil separation effect.

Technical solution is used by the utility model solves above-mentioned technical problem：A kind of range hood, including cabinet and The wind turbine of the horizontal arrangement in cabinet is arranged on, air duct is formed in the cabinet, it is characterised in that：The wind turbine is ternary wind Machine, the wind turbine are arranged on the top above air duct and in cabinet, and the cabinet is interior, the inlet in air duct is provided with rotation Turn strainer.

To cause oil smoke with minimum flow velocity by rotary sieve, the time to contact with each other between the two is longer, so as to reach To preferable filter effect, the air duct is in diminishing shape from the bottom to top.

For ease of forming air duct, while lower the noise of wind turbine, the cabinet includes four side walls, at least one side wall It is provided with from top to bottom gradually to the inclined silencing apparatus of respective side walls, the air duct is located at silencing apparatus far from respective side walls Inside.

To ensure that oil smoke, by rotary sieve, so as to fully be filtered, while avoids rotation from filtering with relatively low flow velocity For net beyond the greatest limit of the negative pressuren zone of wind turbine, the wind turbine includes 3 d impeller, the center of the wind turbine and rotary sieve it Between distance be 1.5~2 times of 3 d impeller diameter.

Preferably, for ease of the setting of rotary sieve, the rotary sieve includes being used for the Dropbox of filtering fume and be used for The motor of Dropbox rotation is driven, the output shaft of the motor is inserted into the center of Dropbox and connects fixation, and the motor passes through electricity Machine support connect fixation with cabinet.

To promote the rigidity of Dropbox, filter effect is promoted as much as possible, is offered on the surface of the Dropbox along center pair The slot for the arc for claiming and being arranged in array, each slot are radially extended along Dropbox, and the slot at least divides along the radial direction of Dropbox It is furnished with two layers.

Grease to avoid cabinet and wind turbine is dropped onto below range hood, offers air inlet on the exhaust fume collecting hood, institute The bottom end for stating cabinet extends to the air inlet of exhaust fume collecting hood, and be provided with oil drain pan in cabinet, below rotary sieve.

It is dripped for ease of undertaking along case side wall, the grease that wind turbine is thrown away, the oil drain pan includes disk ontology, the disk The cross-section adaptation of the shape of ontology, size and cabinet, and the edge of disk ontology is located at the lower section of cabinet and extends cabinet Bottom edge and be supported below the air inlet edge of exhaust fume collecting hood.

For ease of guiding oil smoke air-flow, the intermediate of the disk ontology forms opening, and the disk ontology prolongs upwards in opening It stretches certain distance and forms diversion division, the diversion division is opposite with rotary sieve, and the edge of the rotary sieve exceeds diversion division.

To reduce negative pressuren zone, range hood effect is promoted, while sufficient installation space, the collection are provided for rotary sieve The other parts that petticoat pipe is located at except air inlet edge are higher than air inlet so that exhaust fume collecting hood shape convex under being in.

Compared with prior art, the utility model has the advantage of：By setting horizontal ternary wind turbine, and in cabinet Tunnel inlet at rotary sieve is set, can cause oil smoke with relatively low flow velocity by rotary sieve, between the two phase mutual connection The tactile time is longer, and oil smoke can be caused fully to be collided with rotary sieve, so as to reach preferable filter effect；Control wind turbine Spacing between rotary sieve, it is ensured that oil smoke swimmingly enters wind turbine, while avoids rotary sieve beyond the negative pressuren zone of wind turbine Greatest limit；By setting oil drain pan below rotary sieve, the grease on cabinet, wind turbine and rotary sieve can be avoided to drip Below to range hood；By setting the exhaust fume collecting hood of lower convex type, it can provide rotary sieve sufficient installation space.

Description of the drawings

Fig. 1 is the schematic diagram of the range hood of the utility model；

Fig. 2 is the front section view of the range hood of the utility model；

Fig. 3 is the side sectional view of the range hood of the utility model；

Fig. 4 is that the cabinet of the range hood of the utility model hides the schematic diagram of front side wall；

Fig. 5 is the schematic diagram of the rotary sieve of the range hood of the utility model；

Fig. 6 is the schematic diagram of the oil drain pan of the range hood of the utility model.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing embodiment.

Referring to Fig. 1~Fig. 4, a kind of range hood, including exhaust fume collecting hood 1, the cabinet 2 being arranged on above exhaust fume collecting hood 1, cabinet 2 Inside it is provided with wind turbine 4.Air inlet 11 is offered on exhaust fume collecting hood 1, oil smoke can be aspirated through air inlet by the wind turbine 4 in cabinet 2 as a result, Mouth 11 is discharged into common flue after entering cabinet 2.

Air inlet 11 is preferably located at the centre of 1 bottom of exhaust fume collecting hood, and exhaust fume collecting hood 1 is located at except 11 edge of air inlet Other parts are higher than air inlet 11 so that air inlet 11 is located at the extreme lower position in entire exhaust fume collecting hood 1, so that exhaust fume collecting hood 1 Convex state under being in so as to reduce negative pressuren zone, promotes smoke absorption effect.

Cabinet 2 includes left side wall 21, right side wall 22, front side wall 23 and rear wall 24.Be provided on left side wall 21 by up to Gradual 21 inclined first silencing apparatus 31 of side wall to the left is descended, gradual side wall 22 to the right from top to bottom is provided on right side wall 22 and is inclined The second oblique silencing apparatus 32 is provided with from top to bottom gradually to 23 inclined third silencing apparatus of front side wall on front side wall 23 33, it is provided with from top to bottom gradually to 24 inclined 4th silencing apparatus 34 of rear wall on rear wall 24.Aforementioned four, which is eliminated the noise, to be filled Setting in 4 lower section of wind turbine, the cavity between silencing apparatus forms the air duct 25 of oil smoke air-flow, i.e. it is remote to be located at silencing apparatus for air duct 25 Inside from respective side walls.The structure of common orifice plate combination acoustical cotton can be used in above-mentioned each silencing apparatus.Silencing apparatus also may be used Not to be four or be not necessarily all to tilt, as long as so that air duct 25 is gradually reduced from the bottom to top.

In the present embodiment, wind turbine 4 is ternary wind turbine, and the prior art can be used in ternary wind turbine, such as application No. is 201310418009.X Chinese patent disclosed in.Wind turbine 4 is horizontal arrangement, i.e., the air inlet 44 of wind turbine 4 downward, and wind Machine 4 is placed in the top in the top in cabinet 2, above-mentioned air duct 25.Wind turbine 4 includes 3 d impeller 41, is arranged on outside 3 d impeller 41 Spiral case 42 and for drive 3 d impeller 41 rotate motor 43.2 top of cabinet is provided with to be connect with the air outlet of wind turbine 4 Outlet housing 7, so as to by outlet housing 7, oil smoke can be drained into common flue.

In cabinet 2, rotary sieve 6 is provided with positioned at the lower section of wind turbine 4, and rotary sieve 6 is arranged on above-mentioned each noise elimination The lower section of device, the bottom in cabinet 2.That is, rotary sieve 6 is arranged on the inlet in above-mentioned air duct 25, and wind Road 25 is gradually reduced from the bottom to top, then is also accelerated by the oil smoke of rotary sieve 6 without air duct 25, at this point, oil smoke is with minimum Flow velocity by rotary sieve 6, the time to contact with each other between the two is longer, can cause oil smoke with rotary sieve 6 fully Collision, so as to reach preferable filter effect.

The needs of rotary sieve 6 are maintained a certain distance with wind turbine 4, to ensure that oil smoke passes through rotary sieve with relatively low flow velocity 6, so as to fully be filtered, after rotary sieve 6 carries out brokenly whirlpool to oil smoke so that the flow path that oil smoke passes through certain distance Side reaches wind turbine 4, to ensure that it is smooth that oil smoke sufficiently achieves；Between the two again cannot be apart from too far, otherwise rotary sieve 6 will exceed The greatest limit of the negative pressuren zone of wind turbine 4.It is preferred, therefore, that center (being usually the center of 3 d impeller 41) and the rotation of wind turbine 4 The distance between strainer 6 is 1.5~2 times of 41 diameter of 3 d impeller.Since the air quantity of centrifugal blower is smaller, if using this Arrangement will lead to not ensure the negative pressure (suction) at air inlet 11, and therefore, it is difficult to ensure smoke absorption effect, only ternary Wind turbine could use this arrangement.And structure convex under exhaust fume collecting hood 1 mentioned above, it is sufficient to provide rotary sieve 6 Installation space.

Rotary sieve 6 includes being used for the Dropbox 61 of filtering fume and the motor 62 for Dropbox 61 to be driven to rotate.Referring to figure 5, the slot 611 of the arc along central symmetry and array arrangement is offered on the surface of Dropbox 61, slot 611 be to penetrate through leading to for Dropbox 61 Slot can radially set at least two layers of 611 array of slot on the surface of Dropbox 61, since oil smoke is before draught fan impeller is entered Flue gas is influenced in the concentration distribution of circumference by the rotating speed of wind turbine, the type of impeller and inlet and outlet angular dimensions, after hierarchical design, On the one hand the rigidity of Dropbox 61 is improved, it on the other hand, can be after specific selected blower fan system according to practical flue gas concentration point Cloth characteristic can more freely be distributed every layer of slot 611 to best width dimensions, most without being influenced by other layer of slot 611 Possibly promote filter effect.

611 array of slot is arranged to centrosymmetric annular shape, and each slot 611 radially extends, bending direction and arc Degree is preferably consistent.The slot 611 of certain radian is radially extended and had by setting, after grease is contacted with Dropbox 61, It can compare and successfully flow from inside to outside, and realize that the grease of higher efficiency centrifuges after obtaining the centrifugal force of bigger.

Motor 62 is arranged on the top of Dropbox 61, and the output shaft 621 of motor 62 is inserted into the center of Dropbox 61 and company Fixation is connect, thus motor 62 can drive Dropbox 61 to rotate.The arranged on left and right sides of motor 62 passes through electric machine support 622 and cabinet 2 respectively Left side wall 21, right side wall 22 connection fix, as a result, complete rotary sieve 6 installation.

The bottom end of cabinet 2 is extended at the air inlet 11 of exhaust fume collecting hood 1, and is set in cabinet 2, positioned at 6 lower section of rotary sieve Oil drain pan 5 is equipped with, referring to Fig. 6, oil drain pan 5 includes disk ontology 51 and diversion division 52, shape, size and the cabinet 2 of disk ontology 51 Cross-section adaptation, be arranged in cabinet 2 to horizontal or almost horizontal, and the edge of disk ontology 51 be located at cabinet 2 lower section, And it is supported below 11 edge of air inlet of exhaust fume collecting hood 1 beyond the bottom edge of cabinet 2.The oil dripped in cabinet 2 as a result, The grease that fat, wind turbine 4 are thrown away can be dropped on disk ontology 51.Each side in the air duct 25 of cabinet 2 is inclined, contributes to wind Oil under machine 4 is got rid of is imported on disk ontology 51.

The intermediate of disk ontology 51 forms opening 511, and disk ontology 51 extends a distance up to form water conservancy diversion at opening 511 Portion 52, diversion division 52 is opposite with the Dropbox 61 of rotary sieve 6, and the cross section of opening 511 and diversion division 52 may be circle, and And the edge of Dropbox 61 can exceed diversion division 52 so that the grease that rotary sieve 6 is thrown away can be also dropped on disk ontology 51, simultaneously Diversion division 52 also can play the role of water conservancy diversion to the oil smoke entered from exhaust fume collecting hood 1.

Claims (10)

1. a kind of range hood, the wind turbine (4) including cabinet (2) and the horizontal arrangement being arranged in cabinet (2), the cabinet (2) air duct (25) is formed in, it is characterised in that：The wind turbine (4) is ternary wind turbine, and the wind turbine (4) is arranged on air duct (25) top and the top in cabinet (2), the cabinet (2) is interior, the inlet of air duct (25) is provided with rotary sieve (6)。

2. range hood according to claim 1, it is characterised in that：The air duct (25) is in diminishing from the bottom to top Shape.

3. range hood according to claim 2, it is characterised in that：The cabinet (2) includes four side walls, at least one It is provided on side wall from top to bottom gradually to the inclined silencing apparatus of respective side walls, the air duct (25) is separate positioned at silencing apparatus The inside of respective side walls.

4. range hood according to claim 1, it is characterised in that：The wind turbine (4) includes 3 d impeller (41), described The distance between the center of wind turbine (4) and rotary sieve (6) are 1.5~2 times of 3 d impeller (41) diameter.

5. range hood described in any one of claim 1 to 3, it is characterised in that：The rotary sieve (6) is including use In the Dropbox (61) of filtering fume excessively and the motor (62) for Dropbox (61) to be driven to rotate, the output shaft of the motor (62) (621) it is inserted into the center of Dropbox (61) and connects fixation, the motor (62) is connected by electric machine support (622) and cabinet (2) Connect fixation.

6. range hood according to claim 5, it is characterised in that：It is offered on the surface of the Dropbox (61) along center The slot (611) of arc that is symmetrical and being arranged in array, each slot (611) radially extending along Dropbox, and the slot (611) edge The radial direction of Dropbox (61) is at least distributed with two layers.

7. range hood described in any one of claim 1 to 3, it is characterised in that：Exhaust fume collecting hood (1) is further included, it is described Air inlet (11) is offered on exhaust fume collecting hood (1), the bottom end of the cabinet (2) is extended at the air inlet (11) of exhaust fume collecting hood (1), and And it is provided with oil drain pan (5) in cabinet (2), below rotary sieve (6).

8. range hood according to claim 7, it is characterised in that：The oil drain pan (5) includes disk ontology (51), described The cross-section adaptation of the shape of disk ontology (51), size and cabinet (2), and the edge of disk ontology (51) is located at cabinet (2) Simultaneously extend the bottom edge of cabinet (2) and be supported below air inlet (11) edge of exhaust fume collecting hood (1) in lower section.

9. range hood according to claim 8, it is characterised in that：The intermediate of the disk ontology (51) forms opening (511), the disk ontology (51) extends a distance up to form diversion division (52), the diversion division at opening (511) (52) with rotary sieve (6) relatively, the edge of the rotary sieve (6) exceeds diversion division (52).

10. range hood according to claim 7, it is characterised in that：The exhaust fume collecting hood (1) is positioned at air inlet (11) edge Except other parts be higher than air inlet (11) so that exhaust fume collecting hood (1) shape convex under being in.