CN103573662A - Axial electric fan unit - Google Patents

Axial electric fan unit Download PDF

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Publication number
CN103573662A
CN103573662A CN201310334988.0A CN201310334988A CN103573662A CN 103573662 A CN103573662 A CN 103573662A CN 201310334988 A CN201310334988 A CN 201310334988A CN 103573662 A CN103573662 A CN 103573662A
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CN
China
Prior art keywords
fan
base members
wheel shaft
flange
unit according
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Granted
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CN201310334988.0A
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Chinese (zh)
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CN103573662B (en
Inventor
亚历山德罗·马萨
安德烈亚·雷韦特里亚
里卡尔多·达尼奥
毛罗·巴里亚尼
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Munters Italy SpA
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Munters Italy SpA
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Publication of CN103573662A publication Critical patent/CN103573662A/en
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Publication of CN103573662B publication Critical patent/CN103573662B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/003—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by throttling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Electric fan unit including a casing defining a passage for an air flow and comprising a central support; a fan mounted rotatably on the central support; a shutter comprising a system of slats movable between a configuration in which the passage is completely open and a configuration in which it is completely closed, and a centrifugal regulator having a base element connected in rotation to the fan; an axially movable actuating memberconnected for operation to the system of slats in order to move them towards their maximum opening configuration when the fan is activated; at least two articulated arms connecting the actuator member to the base elementand movable by centrifugal force in such a way as to cause the axial advance of the actuating member; and a slidable couplingfor guiding the axial translational movement of the actuating member relative to the base element. The fan is mounted rotatably on axle connected fixedly to the central support; the axle defines the axis of rotation (z) of the fan and has a through cavity within which a rotating shaft is coaxially housed, a front end of this shaft being connected fixedly to said fan, while a rear end of the shaft is connected integrally to the base element of the centrifugal regulator. The base element is mounted rotatably on the axle, on the opposite side of the central support from the fan.

Description

Fan unit
Technical field
The present invention relates to a kind of Axial-flow electric fan unit that is provided with shutter and centrifugally regulated apparatus, the ducted flow of fluid of this shutter interception electric fan, this centrifugally regulated apparatus can cause the opening and closing of above-mentioned shutter.
More specifically, the present invention relates to a kind of fan unit, comprising: shell, be defined for the passage of air stream, there is entrance and exit, and comprise the center support being arranged between described entrance and exit; Fan, is arranged in described center support and can rotates around its spin axis; Shutter, comprises lath system, between this lath system structure that Channel Perfect is opened therein and structure that wherein Channel Perfect is closed, moves; And centrifugal governor.This centrifugal governor has: base members, is rotated and is connected to fan; Axially movable actuator means, for operation is connected to lath system lath is opened to structure movement to their maximums when the starting fan; At least two joint arms, are connected to base members by actuator means, and described in each, joint arm comprises that centrifugal weight also can be to cause that the axial advancement of described actuating component or the mode of retraction move by centrifugal force; And joiner slidably, for guiding actuating component with respect to the axial translation motion of base members.
Background technique
According to the prior art of describing in patent EP0563875, the base members of centrifugal governor integrally and is directly connected to the hub of fan.It is this that to be arranged in the mounting construction in outlet port that shutter is wherein arranged on airflow path be favourable; On the other hand, if shutter is arranged on the inlet side of airflow path, between the actuating component of centrifugal governor and the lath system of shutter, to provide to be connected to require some parts of unit to carry out sizable modification, and need to introduce extra element.Particularly, having the fan unit that is conventionally configured to the centrifugal governor that operates by pushing action must be revised as by pulling action and operate, this is because centrifugal governor and shutter are arranged on the opposite side of center support, is separately positioned on outlet side and inlet side.For this object, must in adjuster device and in the main shaft of hub and supports fan and pulley, be formed with cavity, to allow passing through of actuating rod, this actuating rod is connected to the actuating component of centrifugal governor the lath system of shutter; In addition, actuating component must be connected to lath system by flexible drawing element (pulling element) (as chain), makes to be necessary to use the supporting member (as sprocket wheel) for traction element.
Therefore, above-mentioned solution be relatively complexity and cost high, and be relatively not satisfied in its operation, because its require to use flexible drawing element and corresponding supporting element.
Summary of the invention
An object of the present invention is to provide a kind of fan unit, in this fan unit, even if shutter is arranged on inlet side, centrifugal governor also can move by pushing action.Another object of the present invention is to provide a kind of fan unit, in this fan unit, in order to make this solution be applicable to the situation that shutter is wherein arranged on inlet side, with respect to known solution, only introduces minimum may revising and extra parts.
According to the present invention, the fan unit of that type limiting in the introductory section by this specification realizes these objects, in this manual, described unit comprises the wheel shaft that is integrally connected to described center support, described fan is rotatably installed on this wheel shaft, the described cavity that penetrates of taking turns the spin axis of fan described in axis limit and thering is therein accommodating running shaft coaxially, the front end of this axle is integrally connected to described fan, and the rear end of this axle is integrally connected to the base members of described centrifugal governor, described base members is rotatably installed on described wheel shaft, be positioned on the opposite side relative with described fan of center support.
By this layout, only need to revise a few components (in other words, forming those parts of wheel shaft) of unit to provide running shaft to be placed in cavity wherein.Except running shaft, the additional element also existing is: be required for and fan hub be fastened to one end of running shaft and for the base members of centrifugal governor being fastened to the parts of the other end, and bearing, this base members utilizes this bearing to be supported by wheel shaft.On the other hand, solution according to the present invention does not require carries out adaptability revision to centrifugal governor, even and if also allow centrifugal governor to move by pushing action when shutter is arranged on air inflow aperture side.
The preferred embodiments of the present invention are defined in the dependent claims, and these preferred embodiments are considered to the major component of this specification.
Accompanying drawing explanation
By the detailed description of the embodiment of the present invention that provides with reference to the accompanying drawings, will be clearer according to the further Characteristics and advantages of fan unit of the present invention, described accompanying drawing only provides as nonrestrictive explanation, wherein:
-Fig. 1 is according to the longitudinal cross-section view of the fan unit of prior art;
-Fig. 2 is the sectional perspective view according to fan unit of the present invention;
-Fig. 3 is the longitudinal cross-section view of Fig. 2 fan unit;
-Fig. 4 is the decomposition view of some parts of Fig. 2 fan unit.
Embodiment
Fig. 1 shows the fan unit as described in EP0563875, and its full content is incorporated into this by reference.With reference to this figure, fan unit comprises shell 2, and this shell is formed by the hollow parallelepiped defining for the passage 4 of Air Flow.Two relative walls of shell 2 have opening, are formed for respectively the entrance and exit of air stream.Fig. 1 only shows the exit opening by 8 expressions.Entrance opening by 6 expressions can be seen in Fig. 2.Shell 2 comprises the center support 10 between the entrance and exit that is arranged on fan unit, and this center support (for example) is formed by one or more beam extending between the relative wall of shell and supported by described wall.Traditionally, center support 10 can support the inner member of fan unit.
Outlet 8 is provided with the shutter of louvre type, and this shutter comprises the system of operated swing lath 12 simultaneously.In end, two relative walls by shell 2 are supported each lath swingably, and in an end of described lath, be provided with chain link (link) (not shown), one end of this chain link is fastened to lath and the other end is connected to vertical connecting rod (not shown) in hinged mode.Therefore all laths are connected to each other by above-mentioned bar, and therefore in mobile lath cause thus the movement of all laths 12 only.A chain link in above-mentioned chain link is connected to one end of spring (not shown).The other end of spring is fastened to the wall of shell 2 as follows, described mode, connecting rod is pushed upwardly and all laths 12 be maintained at outlet 8 structures of closing completely in.
Wheel shaft 20 is integrally connected to center support 10.Utilize wheel shaft 20 that fan 26 is arranged in center support 10.Fan 26 is integrally connected to the hub 28 being rotatably installed on wheel shaft 20, and this takes turns the spin axis z of axis limit fan.For this object, bearing 29 radially between wheel shaft 20He center be formed between the bearing support 28a of hub 28 inside.Pulley 32 is also fastened to hub 28 and by belt 34, is connected to the electric drive motor (not shown) that is arranged on shell 2 inside.Axially holding member 33(can see particularly in Fig. 4) be arranged on wheel shaft 20 to keep hub 28 and the predetermined axial position of pulley 32 on described wheel shaft 20.
Centrifugally regulated apparatus 44 is directly fastened to the end relative with pulley 32 of hub 28.For the description of this device, should be in addition with reference to figure 2.Regulator 44 comprises base members 46, and described base members forms to be fastened to discoid pieces 80 and two relative spokes 82 in the hole 81 of fan by having for bolted joints.Two arms 52 are connected to the end of spoke 82 in hinged mode.Two centrifugal weights 63 are fastened to joint arm 52.The end relative with spoke 82 that be positioned at of arm 52 is connected to two side direction part 56a of actuating component 56 by two articulated arms 54.Discoid pieces 80 is integrally connected to two guide rods 84, described guide rod be set to spin axis z with fan parallel and with this spin axis z distance of being separated by, and described guide rod extends along the direction contrary with fan.Two adapters 86 that are integrally connected to actuating component 56 have two corresponding holes to be slidably arranged on guide rod 84.Actuating component 56 has jag part (forked part) 56b, and one end of actuating rod 68 is connected to this jag part in hinged mode.The other end of actuating rod 68 is connected to Y-piece 70 in hinged mode, and this Y-piece is connected in lath 12.
In above-mentioned known devices, actuating component 56 can and the contiguous position (corresponding to the halted state of fan) of base members 46 and and the position (corresponding to the running state of fan) of base members 46 maximum separation between move.The result of the centrifugal action of the pouring weight 63 causing as the rotation of fan, makes actuating component 56 from axially moving to the position of maximum separation with the contiguous position of hub.This moves axially the corresponding movement of the structure that causes that lath 12 is extremely fully opened from the structure of fully closing.By pushing action, the adjuster device operation of discussing; In other words, the centrifugal force acting on when electric fan is on-stream on pouring weight 63 causes that actuating component 56 moves towards lath 12 as follows, and described mode is, makes actuating rod 68 promote Y-piece 70 to the outside of electric fan, therefore causes that lath 12 opens.
Fig. 2 to Fig. 4 shows according to fan unit of the present invention.In these figure, represented by same reference number with those corresponding parts in Fig. 1.
In the situation of Fig. 2 to Fig. 4, comprise that the louvre type shutter of the system of the swing lath 12 that can side by side operate is arranged on entrance opening 6 places, and centrifugal governor 44 is arranged on the opposite side relative with fan 26 of center support 10.In other words, although fan 26 is arranged between center support 10 and the outlet of fan unit, centrifugal governor 44 is arranged between the entrance 6 of center support 10 and fan unit.
Fixing wheel shaft 20 has the cavity 91 penetrating, and the running shaft 93 with polygonal cross section is contained in this cavity coaxially.The front end of running shaft 93 utilizes front flange 95 to be integrally connected to fan 26, and this front flange has the center hole 95a for the joint of bolt, to be fastened to running shaft 93.In the receiving hole 95b that the front end of running shaft 93 utilizes prism joiner to be assemblied in to be formed centrally in front flange 95; Therefore running shaft 93 is fixed to front flange 95 with respect to rotation.Fan 26 is axially between this flange 95 and hub 28.Utilize and be formed on prejudicially one or more locating stud 95c(drive pin on flange 95, drive pin), front flange 95 is fixed to fan 26 and is fixed to hub 28 with respect to rotation, and this one or more locating stud is bonded on (these holes are to be conventionally arranged for the hole of the base members 46 of fastening centrifugal governor) in the respective aperture of the core that is formed at fan 26.After the rear end of running shaft 93 utilizes, flange 97 is integrally connected to the base members 46 of centrifugal governor 44, and this rear flange has center receiving hole 97a, and the rear end of running shaft 93 utilizes prism joiner to be assemblied in this center receiving hole; Therefore running shaft 93 is fixed to rear flange 97 with respect to rotation.Utilize bolt and the packing ring between bolt and rear flange, rear flange is axially fastened to running shaft 93.Utilize radially between the rear end of wheel shaft 20 and be formed on the bearing 98 between the bearing support 97b at rear flange 97 centers, rear flange 97 is rotatably installed on wheel shaft 20.Between bearing 98 and center support 10, be inserted with space washer 98a and conical spring washer 98; Utilization is tightened on the nut 98c on wheel shaft 20, and these elements axially remain on wheel shaft 20.Rear flange 97 is axially between the base members 46 of wheel shaft 20 and centrifugal governor.Utilize for being fastened to the bolt of rear flange 97, the base members 46 of centrifugal governor is fixed to rear flange 97 with respect to rotation, in the hole 81 that this bolted joints forms in the base members 46 of centrifugal governor (these holes are to be conventionally arranged for the hole that is fastened to hub 28).Due to this layout, base members 46(and therefore centrifugal governor 44) be rotatably installed on wheel shaft 20.
In interchangeable embodiment's (not shown), the layout of the parts of wheel shaft rear end is with respect to described above radially putting upside down; In this interchangeable embodiment, utilize radially between the front end of rear flange and be formed at the bearing between the bearing support at center, rear end of wheel shaft, rear flange is rotatably installed on wheel shaft.Can provide this structure by thering is enough large diameter wheel shafts.
Generally speaking, although in the known configuration of Fig. 1, centrifugal governor 44 is directly connected to hub 28, Fig. 2 to Fig. 3 according in structure of the present invention, utilize running shaft 93 and front flange 95 and rear flange 97 that centrifugal governor 44 is connected to hub 28 indirectly.This makes motion to be sent to centrifugal governor from pulley/hub/fan unit, even if they are arranged on the opposite side of center support.In addition, compare with the structure of Fig. 1, modification in Fig. 2 to Fig. 4 structure and the quantity of additional components are very little, and described modification and additional components only relate to wheel shaft (parts of modification), running shaft and front flange and rear flange (extra parts) in essence.
Clearly, in the situation that keeping the principle of the invention, to describing and only can making widely and changing by the form of the embodiment shown in example and the details of configuration aspects, and can not deviate from scope of the present invention.

Claims (9)

1. fan unit, comprising:
Shell (2), is defined for the passage of air stream, and there is entrance (6) and outlet (8), and comprise the center support (10) being arranged between described entrance and described outlet,
Fan (26), is arranged in described center support and can rotates around its spin axis (z),
Shutter, comprises and the system of lath (12) moves between the structure that the structure that described lath can be opened at described Channel Perfect and described Channel Perfect are closed, and
Centrifugal governor (44), has
-base members (46), with rotating manner be connected to described fan (26);
-can be axially mobile actuator means (56), for being operatively connected to the system of described lath, mobile to make when the described starting fan described lath open structure towards the maximum of described lath;
-at least two joint arms (52,54), described actuator means (56) is connected to described base members (46), and described in each, joint arm comprises centrifugal weight (63) and can be to cause that the axial advancement of described actuating component or the mode of retraction move by centrifugal force; With
-the joiner (84,86) that can slide, for guiding the axial translation motion of described actuating component with respect to described base members;
Described fan unit is characterised in that and comprises:
Wheel shaft (20), be fixedly connected to described center support, described fan can be arranged in described center support rotatably, describedly take turns the described spin axis (z) of fan (26) described in axis limit and there is the cavity (91) penetrating, running shaft (93) is by the cavity penetrating described in being contained in coaxially, the front end of described axle is fixedly connected to described fan, and the rear end of described axle is fixedly connected to the described base members of described centrifugal governor, described base members can be arranged on described wheel shaft (20) rotatably, be positioned on the opposite side relative with described fan of described center support (10).
2. unit according to claim 1, wherein, the described joiner that can slide comprises: at least one guide rod (84), described guide rod and described base members (46) one and parallel and extend towards described actuating component (56) at a distance of the mode of a distance with the spin axis with described fan (26) (z); And at least one corresponding adapter (86), described adapter and described actuating component (56) one and there is the shaping opening can be slidably coupling with corresponding guide rod.
3. unit according to claim 1, wherein, the front end of described running shaft (93) is integrally connected to described fan (26) by front flange (95), described front flange is fastened to described running shaft (93), and described fan is axially between the hub (28) of described front flange and described fan.
4. unit according to claim 3, wherein, the described front end of described running shaft (93) is installed in the receiving hole (95b) that is formed at described front flange (95) center by prism joiner, utilize and be formed on prejudicially described front flange (95) above and be bonded at least one locating stud (95c) in the respective aperture in the core that is formed at described fan (26), described front flange is additionally fixed to described fan (26) and is fixed to described hub (28) with respect to rotation.
5. unit according to claim 1, wherein, the rear end of described running shaft (93) is connected to the described base members (46) of described centrifugal governor (44) securely by rear flange (97), described rear flange is fastened to described running shaft (93), and described rear flange is axially between the described base members (46) of described wheel shaft (20) and described centrifugal governor.
6. unit according to claim 5, wherein, described rear flange has center receiving hole (97a), and the rear end of described running shaft (93) is assemblied in the receiving hole of described center by prism joiner.
7. unit according to claim 5, wherein, it is upper that described rear flange can be arranged on described wheel shaft (20) rotatably by bearing (98), and described bearing is radially between the rear end of described wheel shaft (20) and be formed between the bearing support (97b) at the center of described rear flange.
8. unit according to claim 5, wherein, described rear flange can be arranged on described wheel shaft rotatably by bearing, and described bearing is radially between the front end of described rear flange and be formed between the bearing support at center of rear end of described wheel shaft.
9. unit according to claim 1, wherein, described fan is integrally connected to hub (28), and described hub can be arranged on rotatably described wheel shaft (20) above and also integrally be connected to pulley (32), and described pulley utilizes belt (34) to be connected to electric drive motor.
CN201310334988.0A 2012-08-02 2013-08-02 fan unit Active CN103573662B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12425133.1A EP2693058B1 (en) 2012-08-02 2012-08-02 Axial electric fan unit using a centrifugal regulator device for opening and closing a shutter
EP12425133.1 2012-08-02

Publications (2)

Publication Number Publication Date
CN103573662A true CN103573662A (en) 2014-02-12
CN103573662B CN103573662B (en) 2017-10-27

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CN201310334988.0A Active CN103573662B (en) 2012-08-02 2013-08-02 fan unit

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EP (1) EP2693058B1 (en)
CN (1) CN103573662B (en)
BR (1) BR102013019286A2 (en)
DK (1) DK2693058T3 (en)
ES (1) ES2582905T3 (en)
PL (1) PL2693058T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707662A (en) * 2018-11-23 2019-05-03 吴菊芬 A kind of long-life high-performance blower

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107882765B (en) * 2017-12-14 2024-04-09 株洲联诚集团控股股份有限公司 Centrifugal fan test fixture

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2513077A1 (en) * 1974-03-27 1975-10-02 Vent Axia Ltd., Crawley, Sussex (Großbritannien) FAN
US5195928A (en) * 1990-12-04 1993-03-23 Antonio Gigola Centrifugal actuating device for pushing or pulling an element to be operated
EP0563875A1 (en) * 1992-04-01 1993-10-06 EUROEMME S.p.A. A centrifugal regulator device for opening and closing the shutter of an axial electric fan unit
EP1058009A1 (en) * 1998-12-16 2000-12-06 Soler Y Palau, S.A. Improvements to ultracompact air extractors for bathrooms
WO2003042544A1 (en) * 2001-11-14 2003-05-22 Roberto Pericoli Governor device for actuation of fan shutters
US20060286924A1 (en) * 2005-06-21 2006-12-21 Angelo Milana Axial flow fan improvements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2513077A1 (en) * 1974-03-27 1975-10-02 Vent Axia Ltd., Crawley, Sussex (Großbritannien) FAN
US5195928A (en) * 1990-12-04 1993-03-23 Antonio Gigola Centrifugal actuating device for pushing or pulling an element to be operated
EP0563875A1 (en) * 1992-04-01 1993-10-06 EUROEMME S.p.A. A centrifugal regulator device for opening and closing the shutter of an axial electric fan unit
EP1058009A1 (en) * 1998-12-16 2000-12-06 Soler Y Palau, S.A. Improvements to ultracompact air extractors for bathrooms
WO2003042544A1 (en) * 2001-11-14 2003-05-22 Roberto Pericoli Governor device for actuation of fan shutters
US20060286924A1 (en) * 2005-06-21 2006-12-21 Angelo Milana Axial flow fan improvements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707662A (en) * 2018-11-23 2019-05-03 吴菊芬 A kind of long-life high-performance blower

Also Published As

Publication number Publication date
CN103573662B (en) 2017-10-27
DK2693058T3 (en) 2016-08-01
ES2582905T3 (en) 2016-09-15
BR102013019286A2 (en) 2016-04-12
EP2693058A1 (en) 2014-02-05
PL2693058T3 (en) 2016-10-31
EP2693058B1 (en) 2016-04-20

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