CN203321858U - Relay flow fan and range hood equipped with relay flow fan - Google Patents

Relay flow fan and range hood equipped with relay flow fan Download PDF

Info

Publication number
CN203321858U
CN203321858U CN2013203624648U CN201320362464U CN203321858U CN 203321858 U CN203321858 U CN 203321858U CN 2013203624648 U CN2013203624648 U CN 2013203624648U CN 201320362464 U CN201320362464 U CN 201320362464U CN 203321858 U CN203321858 U CN 203321858U
Authority
CN
China
Prior art keywords
flow fan
spiral case
relay
centrifugal blower
fan
Prior art date
Application number
CN2013203624648U
Other languages
Chinese (zh)
Inventor
吴钰
吴成年
Original Assignee
吴钰
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 吴钰 filed Critical 吴钰
Priority to CN2013203624648U priority Critical patent/CN203321858U/en
Application granted granted Critical
Publication of CN203321858U publication Critical patent/CN203321858U/en

Links

Abstract

The utility model discloses a relay flow fan. The relay flow fan comprises a centrifugal fan and a cross-flow fan which are connected in series, wherein an air outlet of the centrifugal fan is communicated with an air inlet of the cross-flow fan, and the centrifugal fan and the cross-flow fan adopts an integrated structure or a connected structure; the centrifugal fan and the cross-flow fan are used for performing relay working on air flow to accelerate relay of the air flow, and accordingly, relay flowing is formed; and the relay flow fan not only has the characteristics of high speed of air flow at the outlet, large air volume, high air pressure, long air feeding distance and the like, but also has the capacity of performing relay separation, relay condensation and relay purification on cooking fume. A range hood equipped with the relay flow fan can really realize zero emission of cooking fume; the relay flow fan not only provides important guarantee for the green development of the range hood industry, but also provides new choice for the fields of air feeding, air change, air purification and the like; and the relay flow fan is a new member of a fan family, has various structures and can meet different requirements, and with the popularization and the application of the relay flow fan, huge social benefits and economic benefits can be brought.

Description

The range hood of relay flow fan for relay flow fan and dress
Technical field
The present invention relates to blower fan, particularly the relay flow fan, also relate to the range hood of dress with the relay flow fan simultaneously.
Background technique
For range hood, the purification of oil smoke and discharge, blower fan has vital impact.The blower fan that prior art is related, still be difficult to the oil molecule in oil smoke is carried out to more effective separation and purification; Adopt different types of filter screen to be purified oil smoke, can increase the resistance in air channel, reduce the efficiency of blower fan, reduce air quantity.Fan outlet speed, not only relate to the air quantity of blower fan, and on the discharge of oil smoke and prevent from oil smoke discharge pouring in down a chimney important impact is also arranged; Increase fan delivery and outlet velocity by improving rotation speed of fan or increasing rotor diameter, can bring the increase of vibration and noise, increase rotor diameter, also can be subject to the restriction of extractor hood structure size.
How to pass through blower fan, oil smoke is carried out to more efficiently separation, purification, range hood is really realized without oil smoke discharge, and this is the technology " bottleneck " that current range hood industry faces, and is also the key of range hood industry to " green, environmental protection " future development.
Simultaneously, blower fan also has a wide range of applications in fields such as ventilation, ventilation, air purifications, improves the air quantity, blast, air supplying distance of blower fan etc., and the application of blower fan is also had to positive effect.
Summary of the invention
The present invention puts forward for the problems referred to above just, by the relay flow fan, air-flow is carried out to relay acting, relay and accelerate, and forms relay and flows, and the air quantity, outlet velocity etc. of blower fan are significantly improved; By oil smoke being carried out to relay separation, relay condensation, relay purification, blower fan is significantly improved to separation, the catharsis of oil smoke; By the relay flow fan, not only can make range hood really realize without oil smoke discharge, and can promote application and the development of blower fan at other field.
Relay flow fan of the present invention, comprise three kinds of invention technological schemes of same design altogether, below describes the content of three kinds of relay flow fan technological schemes of the present invention in detail:
The relay flow fan that the first technological scheme is related, at least comprising impeller, spiral case assembly, motor, it is characterized in that, described relay flow fan, in series by centrifugal blower and cross flow fan, the exhaust outlet of centrifugal blower is communicated with the intake grill of cross flow fan, centrifugal blower and cross flow fan are structure as a whole, common same impeller, same motor, the same spiral case assembly of using, the air intake passage of described cross flow fan is closed, described impeller is difunctional impeller.
In this technological scheme, described spiral case assembly at least comprises centrifugal blower volute and cross flow fan spiral case, and formed with the cross flow fan spiral case is in parallel by centrifugal blower volute, centrifugal blower volute is placed in cross flow fan spiral case front end, the cross flow fan spiral case is provided with electric motor mounting structure, between centrifugal blower volute and cross flow fan spiral case, be provided with separate layer, separate layer is provided with the perforate adapted with wheel rotation, be provided with the perforate that centrifugal blower outlet passage and cross flow fan inlet passage are communicated with, the air intake passage of cross flow fan is closed.
Described difunctional impeller consists of jointly centrifugal impeller and tangential impeller, at least comprise impeller base, blade, function separator disc, vane ring, construction hole blanking cover, two kinds of impellers share an impeller base, by the function separator disc, along the impeller axial direction, blade is divided into to centrifugal impellers blades and two parts of tangential impeller blade, blade ownership centrifugal impeller before the function separator disc, the blade ownership tangential impeller after the function separator disc; Described function separator disc external diameter is not less than the vane ring external diameter, and its circumference is provided with blade fixed hole or blade fixed groove, and intermediate portion is provided with the construction hole, and in the position of function separator disc on impeller and spiral case assembly, the position at separate layer place adapts; Described construction hole blanking cover, be arranged at top, construction hole, is threaded connection structure, and the hole blanking cover of constructing is fixed on motor shaft, and the hole blanking cover of maybe constructing is fixed on the function separator disc, and the hole sealing makes to construct.
Spiral case assembly in technique scheme has respectively following preferred version:
Preferably one, described spiral case assembly, its centrifugal blower volute and cross flow fan spiral case, at least respectively by independently protecgulum, bonnet, spiral case wall constitute, the common separate layer that forms described spiral case assembly of the protecgulum of the bonnet of centrifugal blower volute and cross flow fan spiral case, by at separate layer perforate position, the flange riveted construction being set, or, by riveted joint, welding or screw connection structure are set on separate layer, centrifugal blower volute and cross flow fan spiral case are connected as a single entity.
Preferably two, described spiral case assembly, the protecgulum of its centrifugal blower volute and spiral case wall are integrated, and form integrated type centrifugal blower volute main body; The bonnet of cross flow fan spiral case and spiral case wall are integrated, and form integrated type cross flow fan spiral case main body; Between integrated type centrifugal blower volute main body and integrated type cross flow fan spiral case main body, be provided with demarcation strip, form the separate layer of described spiral case assembly; Periphery at integrated type centrifugal blower volute main body, integrated type cross flow fan spiral case main body and demarcation strip is equipped with mounting edge, at the mounting edge place, by the flange riveted construction, or, by riveted joint, welding or screw connection structure, integrated type centrifugal blower volute main body, demarcation strip, integrated type cross flow fan spiral case main body are connected as a single entity.
For the centrifugal impeller described in technique scheme and tangential impeller, its blade profile shape is all identical with blade quantity, or blade profile shape and blade quantity are variant; Described function separator disc, its construction hole is arranged on the plane of intermediate portion, the Kong Bianxiang upper overturning, or the construction hole is arranged on the boss of intermediate portion; Described construction hole blanking cover is plate-like or cup-shaped, and construction blanking cover intermediate portion, hole is provided with mounting hole; Adopt welding or riveted structure that function separator disc and blade are fixed together.
The described relay flow fan of the second technological scheme, at least comprising impeller, spiral case assembly, motor, it is characterized in that, described relay flow fan, in series by centrifugal blower and cross flow fan, the exhaust outlet of centrifugal blower is communicated with the intake grill of cross flow fan, and centrifugal blower and cross flow fan are linking body structure, use respectively impeller, motor and spiral case assembly separately, the air intake passage of described cross flow fan is closed.
In this technological scheme, the spiral case assembly of described centrifugal blower at least comprises protecgulum, bonnet and spiral case wall, and the exhaust outlet of centrifugal blower is arranged on the planar section of spiral case wall, or is arranged on protecgulum, or is arranged on bonnet; The spiral case assembly of described cross flow fan, at least comprise left end cap, right end cap, spiral case wall; The air intake passage of cross flow fan is closed, and intake grill is arranged on the planar section of the corresponding spiral case wall of air intake passage; Between centrifugal blower volute and cross flow fan spiral case, flange riveted construction by centrifugal fan air outlet and cross flow fan intake grill place is connected as a single entity, or be connected as a single entity by riveted joint, welding or the screw connection structure between centrifugal fan air outlet place planar section and cross flow fan intake grill place planar section, and realize that in connection centrifugal fan air outlet is communicated with the cross flow fan intake grill.
The described relay flow fan of the third technological scheme, at least comprising centrifugal blower, axial-flow blower or axial fan, it is characterized in that, described relay flow fan, by centrifugal blower and axial-flow blower or in series with axial fan, between centrifugal blower and axial-flow blower, or between centrifugal blower and axial fan, be provided with the closed gas circulation road, the exhaust outlet of centrifugal blower is communicated with the intake grill of axial-flow blower, or the exhaust outlet of centrifugal blower is communicated with the intake grill of axial fan.
The range hood of relay flow fan for dress involved in the present invention, is characterized in that, includes any one relay flow fan in technique scheme.
Know-why of the present invention is as follows:
By the centrifugal blower in the relay flow fan, cross flow fan (or axial-flow blower, or axial fan), air-flow is carried out to the relay acting, the air-flow relay is accelerated, form relay and flow; Relay is flowed and not only to be made the fan outlet airspeed significantly promote, and the air quantity, blast, air supplying distance etc. of blower fan all are largely increased.
Range hood for dress with the relay flow fan, its know-why is specific as follows:
When the airflow passes relay flow fan that contains oil smoke, at first be centrifuged the blower fan acting, air-flow obtains and accelerates, and oil smoke, under the effect of centrifugal force and under the condensation of blower fan, produces separation, condensation, purification.The high velocity air flowed out from centrifugal blower crosses blade path twice when flowing through cross flow fan, by cross-flow fan impeller, is done work for twice, makes air-flow again obtain acceleration, thereby form relay, flows; During the airflow passes cross flow fan, formation has the special flow field of eccentric eddy, eddy flow, under the effect of this flow field and cross flow fan centrifugal force, add the condensation of cross flow fan, separation, condensation, the purification of oil smoke in cross flow fan is further enhanced.In range hood, the relay flow fan not only has the ability of relay acting, relay acceleration to the air-flow that contains oil smoke, also have the ability of relay separation, relay condensation, relay purification.
The present invention has following beneficial effect:
1, brand-new blower fan kind, have purposes widely.
The relay flow fan is a kind of brand-new blower fan kind, have air-flow is carried out to relay acting, relay acceleration, oil smoke is carried out to the ability of relay separation, relay condensation, relay purification, there are the characteristics such as exit flow speed is fast, air quantity is large, blast is high, air supplying distance is far away, can be widely used in fields such as air-supply, ventilation, air purifications, both can be used for, on relevant household electronic products, also can be used on civilian and military equipment.
2, the range hood of relay flow fan for dress, can really realize " green " discharge without oil smoke
The relay flow fan that first and second kind of technological scheme of the present invention relates to, the air-flow that contains oil smoke is there is to " the five large relays " abilities such as relay acting, relay acceleration, relay separation, relay condensation, relay purification, and also there are the characteristics such as the fan outlet airspeed is fast, air quantity is large, blast is high, air supplying distance is far away, adopt the relevance filtering technology to match with the relay flow fan, can, under the prerequisite that meets the range hood air quantity, really realize range hood " green " discharge without oil smoke.
" the five large relays " ability that the relay flow fan has and the characteristics such as the exit flow speed had is fast, air quantity is large, blast is high, air supplying distance is far away are what existing blower fan can't be by comparison.Just because of this, the range hood of relay flow fan for dress, will lead the range hood industry to step the new step of upper " green " development.
3, various structures, can be for different demands
The relay flow fan is the newcomer of blower fan family, has various structures, can be for different demands; It not only provides important guarantee for range hood industry " green " development, and provides new selection for fields such as air-supply, ventilation, air purifications; Applying of it, will produce huge social benefit and economic benefit.
The accompanying drawing explanation
Fig. 1~17th, the structural representation of exemplary embodiments 1~3 of the present invention, wherein:
Fig. 1~6th, embodiment 1 relay flow fan structural representation, Fig. 7~12nd, embodiment 2 relay flow fan structural representation, Figure 13~16th, embodiment 3 relay flow fan structural representation, Figure 17 is the schematic diagram of flange riveted construction.More specifically:
Fig. 1 is the three-dimensional sectional structure schematic diagram (sectional view after dissecing on asymmetric) of the relay flow fan of the embodiment of the present invention 1;
Fig. 2 is the perspective view (sectional view after dissecing on asymmetric) of the relay flow fan spiral case assembly of the embodiment of the present invention 1;
Fig. 3 is the perspective view (back stravismus) of anticentripetal spiral casing in the spiral case assembly of the embodiment of the present invention 1;
Fig. 4 is the perspective view (front stravismus) of through-flow spiral case in the spiral case assembly of the embodiment of the present invention 1;
Fig. 5 is the difunctional impeller perspective view (complete section) of the embodiment of the present invention 1;
Fig. 6 is the construction hole blocking cover structure schematic diagram (complete section) of the embodiment of the present invention 1;
Fig. 7 is the relay flow fan perspective view (front stravismus) of the embodiment of the present invention 2;
Fig. 8 is the relay flow fan perspective view (back stravismus) of the embodiment of the present invention 2;
Fig. 9 is the three-dimensional sectional structure schematic diagram (sectional view after dissecing on asymmetric) of the relay flow fan of the embodiment of the present invention 2;
Figure 10 is the integrated type anticentripetal spiral casing main body perspective view (front stravismus) in the spiral case assembly of the embodiment of the present invention 2;
Figure 11 is the demarcation strip perspective view (front stravismus) in the spiral case assembly of the embodiment of the present invention 2;
Figure 12 is the integrated type through-flow spiral case main body perspective view (front stravismus) in the spiral case assembly of the embodiment of the present invention 2;
Figure 13 is the perspective view of the embodiment of the present invention 3 relay flow fans;
Figure 14 is the perspective view (full section) of the centrifugal blower of the embodiment of the present invention 3 relay flow fans;
Figure 15 is the cross flow fan spiral case assembly perspective view of the embodiment of the present invention 3 relay flow fans;
Figure 16 is the perspective view of cross flow fan spiral case assembly after dissecing of the embodiment of the present invention 3 relay flow fans;
Figure 17 is the flange riveted construction schematic diagram (partial views in cross section after dissecing) of indication of the present invention.
Embodiment
Some explanation of the specific embodiment of the invention:
The relay flow fan of the first technological scheme, described in detail by embodiment 1, embodiment 2 and accompanying drawing 1~12;
The relay flow fan of the second technological scheme, described in detail by embodiment 3 and accompanying drawing 13~16;
The relay flow fan of the third technological scheme, described in detail by embodiment 4 (without accompanying drawing);
Related flange riveted construction in the invention process, be shown in Figure 17;
The range hood of relay flow fan for dress of the present invention, described in detail by embodiment 5 (without accompanying drawing).
It should be noted that, these embodiments are only several typical structures of the embodiment of the present invention, do not represent whole embodiment of the present invention, although other embodiments are unlisted, but still in the scope of protection of the invention.
Below in conjunction with embodiment 1~4 and embodiment's accompanying drawing 1~17, relay flow fan of the present invention is described in detail in detail and how implements:
Embodiment 1
As shown in Fig. 1~6, the relay flow fan of the present embodiment, in series by centrifugal blower 1 and cross flow fan 2, the exhaust outlet of centrifugal blower is communicated with the intake grill of cross flow fan, centrifugal blower and cross flow fan are structure as a whole, and jointly use same impeller 3, same motor 4, same spiral case assembly 5.
Spiral case assembly 5 at least comprises centrifugal blower volute 5.1 and cross flow fan spiral case 5.2, centrifugal blower volute, with the cross flow fan spiral case is in parallel, consists of, and centrifugal blower volute is placed in cross flow fan spiral case front end, and the cross flow fan spiral case is provided with electric motor mounting structure.Centrifugal blower volute is constituted by protecgulum 5.1-1, bonnet 5.1-2, spiral case wall 5.1-3, be provided with the perforate 5.1-4 that adapts with wheel rotation on bonnet, be provided with perforate (exhaust outlet that this perforate is centrifugal blower, hereinafter to be referred as the exhaust outlet) 5.1-5 that centrifugal blower outlet passage and cross flow fan inlet passage are communicated with; The cross flow fan spiral case is constituted by protecgulum 5.2-1, bonnet 5.2-2, spiral case wall 5.2-3, be provided with the perforate 5.2-4 that adapts with wheel rotation on protecgulum, be provided with perforate (intake grill that this perforate is cross flow fan, hereinafter to be referred as the intake grill) 5.2-5 that centrifugal blower outlet passage and cross flow fan inlet passage are communicated with; The protecgulum of the bonnet of centrifugal blower volute and cross flow fan spiral case is bonded to each other, the common separate layer 5.3 that forms the spiral case assembly, by perforate 5.1-4,5.2-4, perforate (exhaust outlet) 5.1-5, the flange riveted construction that perforate (intake grill) 5.2-5 establishes in place, centrifugal blower volute and cross flow fan spiral case are connected as a single entity, and centrifugal fan air outlet is communicated with the cross flow fan intake grill; The air intake passage 5.2-6 of cross flow fan is closed, on centrifugal blower volute and cross flow fan spiral case, also is respectively equipped with outage 5.1a, 5.2a.In the present embodiment, also can, by riveted joint, welding or screw connection structure are set on separate layer 5.3, centrifugal blower volute and cross flow fan spiral case be connected as a single entity.
The impeller that the present embodiment is used is difunctional impeller, by centrifugal impeller and tangential impeller, jointly formed, at least comprise impeller base 3.1, blade 3.2, function separator disc 3.3, vane ring 3.4, construction hole blanking cover 3.5, two kinds of impellers share an impeller base, by the function separator disc, along the impeller axial direction, blade is divided into to centrifugal impellers blades 3.6 and 3.7 two parts of tangential impeller blade, blade 3.6 ownership centrifugal impellers before the function separator disc, blade 3.7 ownership tangential impellers after the function separator disc, the blade of centrifugal impeller and the blade of tangential impeller, the blade profile shape is all identical with blade quantity, described function separator disc external diameter is not less than the vane ring external diameter, its circumference is provided with the blade fixed groove adapted with blade shape and quantity, intermediate portion is provided with construction hole 3.3-1, Kong Bianxiang upper overturning 3.3-1a, in the position of function separator disc on impeller and spiral case assembly, the position at separate layer 5.3 places adapts, and adopts welding or riveted structure that function separator disc and blade are fixed together, construction hole blanking cover 3.5 is plate-like, is provided with downward flange 3.5-1 week, and intermediate portion is provided with boss 3.5-2 and mounting hole 3.5-3, after completing between impeller and motor shaft and being connected, the hole blanking cover of constructing is contained in top, function separator disc construction hole, is threaded connection structure, and the hole blanking cover of construct is fixed on motor shaft, and the hole of constructing is sealed.On impeller, the construction hole on the function separator disc aims at the assembling Impeller Design, and the size in construction hole is installed the desired position size according to impeller and determined; The size of construction hole blanking cover, also determine according to the construction hole size.
Embodiment 2
The present embodiment and embodiment 1 belong to the typical structure of the first technological scheme of the present invention together, as shown in Fig. 7~12, the present embodiment difference from Example 1 only is, spiral case modular construction and shape are different, and construction hole blanking cover shape and motor shaft length used on difunctional impeller are different.
Spiral case assembly in the present embodiment, the protecgulum 5.1-1 of its centrifugal blower volute and spiral case wall 5.1-3 are integrated, and form integrated type centrifugal blower volute main body 5.1A, and its periphery is provided with mounting edge 5.1A-1; The bonnet 5.2-2 of cross flow fan spiral case and spiral case wall 5.2-3 are integrated, and form integrated type through-flow spiral case main body 5.2A, and its periphery also is provided with mounting edge 5.2A-1; Between integrated type centrifugal blower volute main body and integrated type cross flow fan spiral case main body, be provided with demarcation strip 5.3A, form the separate layer 5.3 of described spiral case assembly; Demarcation strip is provided with mounting edge 5.3A-1, be provided with the positioning boss 5.3A-2 adapted with spiral case wall 5.1-3 shape, be provided with the perforate 5.3-1 adapted with wheel rotation on the plane of positioning boss, be provided with the perforate 5.3-2 that centrifugal blower outlet passage and cross flow fan inlet passage are communicated with; Mounting edge 5.1A-1, the 5.2A-1 of described, 5.3A-1 place in the above, by without rivet structure or spot-welded structures (or flange riveted construction or screw connection structure), integrated type centrifugal blower volute main body, demarcation strip, integrated type cross flow fan spiral case main body are connected as a single entity; In the present embodiment, exhaust outlet channel shape and the position of centrifugal blower, cross flow fan all different from embodiment 1 into and out of air port channel shape and position.
The construction hole blanking cover adopted on the difunctional impeller of the present embodiment is cup-shaped, and periphery is provided with downward flange, and the cup end is provided with mounting hole.
It should be noted that, in embodiment 1 and embodiment 2, also can around function separator disc construction hole, tapped hole be set, on the blanking cover of construction hole, the mounting hole of answering in contrast is set, by screw, the hole blanking cover of constructing is fixed on the function separator disc, and does not need to be fixed on motor shaft; For the rigidity of assurance function separator disc, can on the function separator disc, increase spoke structure or annular boss structure etc.
For the difunctional impeller described in above-described embodiment, also can make differentiation between the blade of its centrifugal impeller and tangential impeller selects, both the sectional shape of two kinds of blades was identical, but blade quantity difference, or the sectional shape difference of two kinds of blades, but blade quantity is identical, or the sectional shape of two kinds of blades and quantity all mutually not equal.
Embodiment 3
As shown in Figure 13~16, the relay flow fan of the present embodiment is in series by centrifugal blower 1 and cross flow fan 2, the exhaust outlet of centrifugal blower is communicated with the intake grill of cross flow fan, and centrifugal blower and cross flow fan are linking body structure, uses respectively impeller, motor, spiral case assembly separately; The air intake passage of described cross flow fan is closed.
The spiral case assembly of centrifugal blower at least comprises protecgulum 5.1-1, bonnet 5.1-2, spiral case wall 5.1-3, on the corresponding spiral case wall of centrifugal blower air-out passage planar section, is provided with exhaust outlet 5.1-3a; The spiral case assembly of cross flow fan at least comprises left end cap 5.2-1, right end cap 5.2-2, spiral case wall 5.2-3, and the air intake passage 5.2-4 of cross flow fan is closed, on the corresponding spiral case wall of cross flow fan air intake passage planar section, is provided with intake grill 5.2-3a; Be provided with flange riveted construction 5.3-3 at exhaust outlet 5.1-3a, intake grill 5.2-3a place; By the flange riveted construction, centrifugal blower volute and cross flow fan spiral case are connected as a single entity, and realize that centrifugal fan air outlet is communicated with the cross flow fan intake grill; By the connection between the spiral case assembly, make separate centrifugal blower and cross flow fan become linking body structure.
The centrifugal fan air outlet of the present embodiment, not only can be arranged on the spiral case wall of anticentripetal spiral casing assembly, also can be arranged on the protecgulum or bonnet of anticentripetal spiral casing assembly, and determine according to the centrifugal fan air outlet position cross flow fan position.Cross flow fan both can be placed in the centrifugal blower top, also can be placed in centrifugal blower the place ahead or rear.
In the present embodiment, between centrifugal blower volute and cross flow fan spiral case, also can be connected as a single entity by riveted joint, welding or the screw connection structure between centrifugal fan air outlet place planar section and cross flow fan intake grill place planar section.
Embodiment 4
The present embodiment is without figure, and the relay flow fan of the present embodiment is in series by centrifugal blower and axial fan, between centrifugal blower and axial fan, is provided with the closed gas circulation road, and the exhaust outlet of centrifugal blower is communicated with the intake grill of axial fan.
In the present embodiment, also available axial-flow blower replaces axial fan.
It should be noted that, in the above-described embodiments, belong to the existing General Construction part of blower fan industry, as electric motor mounting structure, impeller mount fixing structure, the linkage structure in spiral case between front/rear cover and spiral case wall, the flange plate of exhaust port, and the collector ring on blower fan, the structures such as sump pit, all do not do concrete narration.Do like this and do not affect blower fan professional and technical personnel the understanding of the present invention, also do not affect specific embodiment of the invention.
Embodiment 5
The present embodiment is without figure.The range hood of relay flow fan for dress, its embodiment is, the relay flow fan that described range hood comprises any one in embodiment 1~4; Described range hood comprises family expenses and commercial two types.
It is pointed out that the related relay flow fan of first and second kind of scheme of the invention of the present invention is more suitable for range hood and uses.
The relay flow fan of all various structural types that consist of the present invention, and the range hood of relay flow fan for dress, are protected by the present invention all.

Claims (10)

1. relay flow fan, at least comprising impeller, spiral case assembly, motor, it is characterized in that, described relay flow fan, in series by centrifugal blower and cross flow fan, the exhaust outlet of centrifugal blower is communicated with the intake grill of cross flow fan, centrifugal blower and cross flow fan are structure as a whole, common same impeller, same motor, the same spiral case assembly of using, the air intake passage of described cross flow fan is closed, described impeller is difunctional impeller.
2. relay flow fan according to claim 1, it is characterized in that, described spiral case assembly at least comprises centrifugal blower volute and cross flow fan spiral case, and formed with the cross flow fan spiral case is in parallel by centrifugal blower volute, centrifugal blower volute is placed in cross flow fan spiral case front end, the cross flow fan spiral case is provided with electric motor mounting structure, between centrifugal blower volute and cross flow fan spiral case, be provided with separate layer, separate layer is provided with the perforate adapted with wheel rotation, be provided with the perforate that centrifugal blower outlet passage and cross flow fan inlet passage are communicated with, the air intake passage of cross flow fan is closed.
3. relay flow fan according to claim 1, it is characterized in that, described difunctional impeller consists of jointly centrifugal impeller and tangential impeller, at least comprise impeller base, blade, function separator disc, vane ring, construction hole blanking cover, two kinds of impellers share an impeller base, by the function separator disc, along the impeller axial direction, blade is divided into to centrifugal impellers blades and two parts of tangential impeller blade, blade ownership centrifugal impeller before the function separator disc, the blade ownership tangential impeller after the function separator disc; Described function separator disc external diameter is not less than the vane ring external diameter, and its circumference is provided with blade fixed hole or blade fixed groove, and intermediate portion is provided with the construction hole, and in the position of function separator disc on impeller and spiral case assembly, the position at separate layer place adapts; Described construction hole blanking cover, be arranged at top, construction hole, is threaded connection structure, and the hole blanking cover of constructing is fixed on motor shaft, and the hole blanking cover of maybe constructing is fixed on the function separator disc, and the hole sealing makes to construct.
4. relay flow fan according to claim 2, it is characterized in that, described spiral case assembly, its centrifugal blower volute and cross flow fan spiral case, at least respectively by independently protecgulum, bonnet, spiral case wall constitute, the common separate layer that forms described spiral case assembly of the protecgulum of the bonnet of centrifugal blower volute and cross flow fan spiral case, by at separate layer perforate position, the flange riveted construction being set, or, by riveted joint, welding or screw connection structure are set on separate layer, centrifugal blower volute and cross flow fan spiral case are connected as a single entity.
5. relay flow fan according to claim 2, is characterized in that, described spiral case assembly, and the protecgulum of its centrifugal blower volute and spiral case wall are integrated, and form integrated type centrifugal blower volute main body; The bonnet of cross flow fan spiral case and spiral case wall are integrated, and form integrated type cross flow fan spiral case main body; Between integrated type centrifugal blower volute main body and integrated type cross flow fan spiral case main body, be provided with demarcation strip, form the separate layer of described spiral case assembly; Periphery at integrated type centrifugal blower volute main body, integrated type cross flow fan spiral case main body and demarcation strip is equipped with mounting edge, at the mounting edge place, by the flange riveted construction, or, by riveted joint, welding or screw connection structure, integrated type centrifugal blower volute main body, demarcation strip, integrated type cross flow fan spiral case main body are connected as a single entity.
6. relay flow fan according to claim 3, is characterized in that, described centrifugal impeller and tangential impeller, and its blade profile shape is all identical with blade quantity, or blade profile shape and blade quantity are variant; Described function separator disc, its construction hole is arranged on the plane of intermediate portion, the Kong Bianxiang upper overturning, or the construction hole is arranged on the boss of intermediate portion; Described construction hole blanking cover is plate-like or cup-shaped, and construction blanking cover intermediate portion, hole is provided with mounting hole; Adopt welding or riveted structure that function separator disc and blade are fixed together.
7. relay flow fan, at least comprising impeller, spiral case assembly, motor, it is characterized in that, described relay flow fan, in series by centrifugal blower and cross flow fan, the exhaust outlet of centrifugal blower is communicated with the intake grill of cross flow fan, and centrifugal blower and cross flow fan are linking body structure, use respectively impeller, motor, spiral case assembly separately, the air intake passage of described cross flow fan is closed.
8. relay flow fan according to claim 7, it is characterized in that, the spiral case assembly of described centrifugal blower at least comprises protecgulum, bonnet and spiral case wall, and the exhaust outlet of centrifugal blower is arranged on the planar section of spiral case wall, or be arranged on protecgulum, or be arranged on bonnet; The spiral case assembly of described cross flow fan, at least comprise left end cap, right end cap, spiral case wall; The air intake passage of cross flow fan is closed, and intake grill is arranged on the planar section of the corresponding spiral case wall of air intake passage; Between centrifugal blower volute and cross flow fan spiral case, flange riveted construction by centrifugal fan air outlet and cross flow fan intake grill place is connected as a single entity, or be connected as a single entity by riveted joint, welding or the screw connection structure between centrifugal fan air outlet place planar section and cross flow fan intake grill place planar section, and realize that in connection centrifugal fan air outlet is communicated with the cross flow fan intake grill.
9. relay flow fan, at least comprising centrifugal blower, axial-flow blower or axial fan, it is characterized in that, described relay flow fan, by centrifugal blower and axial-flow blower or in series with axial fan, between centrifugal blower and axial-flow blower, or between centrifugal blower and axial fan, be provided with the closed gas circulation road, the exhaust outlet of centrifugal blower is communicated with the intake grill of axial-flow blower, or the exhaust outlet of centrifugal blower is communicated with the intake grill of axial fan.
10. the range hood of relay flow fan for dress, is characterized in that, includes the described relay flow fan of any one in claim 1 to 9.
CN2013203624648U 2013-06-15 2013-06-15 Relay flow fan and range hood equipped with relay flow fan CN203321858U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203624648U CN203321858U (en) 2013-06-15 2013-06-15 Relay flow fan and range hood equipped with relay flow fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203624648U CN203321858U (en) 2013-06-15 2013-06-15 Relay flow fan and range hood equipped with relay flow fan

Publications (1)

Publication Number Publication Date
CN203321858U true CN203321858U (en) 2013-12-04

Family

ID=49661214

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203624648U CN203321858U (en) 2013-06-15 2013-06-15 Relay flow fan and range hood equipped with relay flow fan

Country Status (1)

Country Link
CN (1) CN203321858U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321929A (en) * 2013-06-15 2013-09-25 吴钰 Relay flow fan and extractor hood with same
CN104266248A (en) * 2014-10-24 2015-01-07 华帝股份有限公司 Range hood with oil fume separator
CN104879808A (en) * 2015-04-27 2015-09-02 杭州奥普博朗尼厨卫科技有限公司 Concentric-double-square-shaped vortex fume exhaust system used on air exhaust and oil fume exhaust product
CN104949173A (en) * 2014-03-27 2015-09-30 宁波方太厨具有限公司 Serial double-fan-type range hood
CN104949175A (en) * 2014-03-27 2015-09-30 宁波方太厨具有限公司 Tandem double-fan structure for extractor hood
CN105899812A (en) * 2014-01-20 2016-08-24 李圭澈 Dual electric fan
CN110848778A (en) * 2019-11-25 2020-02-28 佛山市顺德区美的洗涤电器制造有限公司 Oil fume purifying device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321929A (en) * 2013-06-15 2013-09-25 吴钰 Relay flow fan and extractor hood with same
CN105899812A (en) * 2014-01-20 2016-08-24 李圭澈 Dual electric fan
CN104949173B (en) * 2014-03-27 2018-11-16 宁波方太厨具有限公司 A kind of series connection two fans type range hood
CN104949173A (en) * 2014-03-27 2015-09-30 宁波方太厨具有限公司 Serial double-fan-type range hood
CN104949175A (en) * 2014-03-27 2015-09-30 宁波方太厨具有限公司 Tandem double-fan structure for extractor hood
CN104266248B (en) * 2014-10-24 2017-02-15 华帝股份有限公司 Range hood with oil fume separator
CN104266248A (en) * 2014-10-24 2015-01-07 华帝股份有限公司 Range hood with oil fume separator
CN104879808A (en) * 2015-04-27 2015-09-02 杭州奥普博朗尼厨卫科技有限公司 Concentric-double-square-shaped vortex fume exhaust system used on air exhaust and oil fume exhaust product
CN110848778A (en) * 2019-11-25 2020-02-28 佛山市顺德区美的洗涤电器制造有限公司 Oil fume purifying device

Similar Documents

Publication Publication Date Title
CN105026769B (en) Centrifugal compressor
JP6060190B2 (en) Exhaust module with swirler fan
CN100340776C (en) Low noise high pressure centrifugal fan
GB1401486A (en) Centrifugal compressors especially for supercharging engines
CN101858613B (en) Jet flow type smoke exhaust ventilator and fluidic generator thereof
US3171353A (en) Centrifugal fluid pump
CN204388168U (en) A kind of range hood with filtering function
US3243102A (en) Centrifugal fluid pump
CN201953660U (en) Oil effluence decreasing device for compressor
CN101868629B (en) Compressor
CN103306979B (en) Electronic vacuum pump for new energy vehicle brake vacuum booster
CN203396024U (en) Workshop ventilating system
CN105264236A (en) Centrifugal compressor and supercharger
CN101668678B (en) Axial fan device and its manufacture method
CN207299379U (en) A kind of air-flow leads directly to wall-mounted new wind turbine
CN102207301A (en) Cooker hood
CN104675748B (en) A kind of low noise with conduit is without spiral case centrifugal fan
CN101949393A (en) Multistage centrifugal blower or impeller inlet flowing guide structure of multistage centrifugal compressor
CN1506622A (en) Duplex centrifugal blower with great wind rate and less noise for kitchen ventilator
CN100507281C (en) Fan frame with notch connecting pieces and fan
CN201377469Y (en) Liquid spraying and noise reducing structure for centrifugal refrigeration compressor
AU2012203104B2 (en) Axial fan assembly
WO2007115446A1 (en) A cascade radial-flow compressor
CN104913395A (en) Air purifier with double-cross-flow air channel
CN209818390U (en) Centrifugal impeller

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant