CN1171542A - Direction control apparatus for condenser fan - Google Patents
Direction control apparatus for condenser fan Download PDFInfo
- Publication number
- CN1171542A CN1171542A CN97113620A CN97113620A CN1171542A CN 1171542 A CN1171542 A CN 1171542A CN 97113620 A CN97113620 A CN 97113620A CN 97113620 A CN97113620 A CN 97113620A CN 1171542 A CN1171542 A CN 1171542A
- Authority
- CN
- China
- Prior art keywords
- fan
- rotating shaft
- motor
- rotation
- fan blade
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
In a condenser fan assembly having a plurality of individually operating condenser fans, each condenser fan comprises a motor connected to a fan blade through a shaft. A housing with which the shaft of each motor is covered is fixed to the end bell of a motor. A one-way clutch is attached to a housing, and connected to the shaft such that rotation in one- way of the motor is enabled and rotation in a reverse direction of the motor is prevented from occurring.
Description
Fan component is a legacy device of the condenser portion of aircondition.For condenser portion is equipped with a plurality of fans of always not working simultaneously is comparatively favourable.
When comprising more than one fan, condenser portion can produce some problems, for example so-called " windmill " effect.The air stream that produces during (all) fan works can make idle fan blade in the condenser portion, and then the motor that is leaving unused is accordingly rotated.Effect that Here it is so-called " windmill ".
The rotation that produces because of the windmill effect often be occur in and the direction of the switched in opposite of (all) fans of working on.When driving is subjected to the idle fan of windmill effects, in order to proofread and correct its direction, must apply bigger power to their motor, rotating shaft and fan screw, may damage motor rotary shaft, the fan screw of fan like this, and damage their response characteristic, consumed energy, and the performance of infringement fan.
The method that was used for controlling idle fan it " windmill effect " in the past is, utilizes the dividing plate of " egg trellis " that each fan is separated from each other and isolates, thereby air duct is isolated mutually.Fig. 1 shows one and has dividing plate, typical prior art fan component unit.It is not extremely successful adopting these dividing plates, and under certain conditions, influence is mobile by the air of whole unit unfriendly for they.
The objective of the invention is to, provide a kind of new, effectively the windmill effect of idle condenser fan is controlled or eliminated to apparatus and method.
According to the present invention, for each fan component that can " open " circularly in condenser portion, move " pass " is provided with a motor steering control device, for example a clutch or ratchet mechanism, so, any rotatablely moving on the direction opposite with required direction of rotation will automatically be started steering control device, so just can prevent counter-rotating.
Fig. 1 is the stereogram of the attic fan assembly unit of a prior art, and described fan component unit comprises two groups of condenser fans, for clarity sake, has removed fan blade;
Fig. 2 is the side view of condenser fan after removing several portions that a clutch apparatus is installed according to the present invention;
Fig. 3 is mounted in the zoomed-in view of the clutch apparatus on the blower-casting end cap.
See also earlier Fig. 1, wherein show a typical roof type air cooling by label 10 expressions Condenser, it comprises a plurality of condenser portion of installing side by side, when the fan 1 of a condenser portion idle The time, the fan effect meeting of adjacent condenser portion produces the windmill effect to it. Condenser portion is mounted in logical Often take building roof in the framework 11 on basis.
Below in conjunction with preferred embodiment the present invention is described.Fig. 2 and Fig. 3 show according to the relation between the critical piece of clutch type electric machine fan component of the present invention.
Each fan of an air-conditioning condenser part 10 shown in Figure 1 all has been equipped with the fan blade 1 that is connected in fan motor by fan shaft 3.One is used for controlling the bottom setting of the clutch pack 4 of motor rotation around fan shaft 3, can prevent the influence that it is not subjected to rain, snow or other disadvantageous climatic factor by rain cover 5.The fan guard that be arranged in parallel in the plane on the upper surface that is in fan blade 1 unexpectedly contacts with solids to prevent fan blade.
The clutch pack 4 that clutch 6 is installed is connected in fan motor 2 by the tooth 8 that protrudes out from clutch housing 7.As shown in Figure 3, clutch pack 4 is encapsulated in the motor case 5 of fan motor 2, and around fan motor rotating shaft 3.
The clutch pack 4 that clutch 6 is installed is press-fitted in the clutch housing 7.As shown in Figure 3, this clutch pack is connected in fan motor 2 by the tooth 8 in the motor case 5 that embeds and be fixed on fan motor 2, and around fan motor rotating shaft 3.A kind of suitable clutch is that (Torrington, The Torrington Co Ct) produces by the TWB city.Can when direction rotation of motor rotary shaft 3 beginnings, automatically or manually drive this clutch with brake motor rotating shaft 3, and releasing motor rotating shaft 3 when motor rotary shaft 3 beginning rightabout rotations.
Though this preferred embodiment is to adopt a clutch to control turning to of fan motor, should be understood that the motor steering control device of other pattern also should fall within the scope of the present invention.For example, can replace clutch with a ratchet mechanism.In such an embodiment, the tooth of ratchet mechanism is connected in the fan motor rotating shaft, and the ratchet of ratchet mechanism or pallet are arranged on the housing that centers on.Similarly; can be by the device beyond the tooth; for example be arranged on housing bottom and with the motor case in the collar or the housing of handles sealing such as the screw thread that cooperates of jack screw or pin, rivet and protection motion control device be connected in the motor case, this does not depart from spirit of the present invention yet.
Claims (5)
1. aircondition, it comprises a condenser fan, described fan has a fan blade and a rotating shaft, described rotating shaft operably is connected in fan blade and is connected in and makes the device of described fan blade along a certain direction rotation, it is characterized in that described tumbler has the device that restriction drives the motor reverse rotation of fan blade rotation.
2. in the aircondition that comprises a plurality of fan blade that work alone, each blade all operably is connected in a device that described fan blade is rotated on a certain direction, improved being characterised in that of their combinations comprises that also one is used for limiting the device of the motor reverse rotation of each tumbler.
3. aircondition as claimed in claim 1 is characterized in that, the described device that is used for the restrictions motor rotation is a clutch.
4. aircondition as claimed in claim 1 is characterized in that, the described device that is used for the restrictions motor rotation is a ratchet mechanism.
5. in the device of claim 1, it is characterized in that, the device that is used for driving described fan blade rotation is to make motor that rotating shaft rotates on a certain direction and the end cap that allows rotating shaft pass, and one around described rotating shaft and be fixed in the housing on the described end cap and be installed in and be used in the described housing engage described rotating shaft so that rotating shaft stops the one-way clutch of rotating shaft reverse rotation along described a certain direction rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67449996A | 1996-06-28 | 1996-06-28 | |
| US674499 | 1996-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1171542A true CN1171542A (en) | 1998-01-28 |
Family
ID=24706853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97113620A Pending CN1171542A (en) | 1996-06-28 | 1997-06-12 | Direction control apparatus for condenser fan |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0816686A3 (en) |
| JP (1) | JPH1089719A (en) |
| KR (1) | KR980003324A (en) |
| CN (1) | CN1171542A (en) |
| AU (1) | AU2753897A (en) |
| BR (1) | BR9703763A (en) |
| MX (1) | MX9704902A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3990519B2 (en) * | 1999-09-30 | 2007-10-17 | 富士通株式会社 | Fan unit |
| EP1460273A1 (en) * | 2003-03-17 | 2004-09-22 | R.C. Trasmissioni S.r.l. | Ventilation apparatus |
| KR100631572B1 (en) | 2005-06-16 | 2006-10-09 | 엘지전자 주식회사 | Motor having device for limiting direction of rotation |
| JP5379723B2 (en) * | 2010-03-01 | 2013-12-25 | 東海旅客鉄道株式会社 | Fluid machine, fluid machine operation control device |
| US11898769B2 (en) * | 2020-05-08 | 2024-02-13 | Johnson Controls Tyco IP Holdings LLP | Condenser fan rotation restriction system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3560109A (en) * | 1969-06-02 | 1971-02-02 | Emerson Electric Co | Antiwindmilling |
| US3826934A (en) * | 1972-09-25 | 1974-07-30 | Gen Electric | Nonreversible motor |
| US5117143A (en) * | 1991-03-22 | 1992-05-26 | Electric Motors And Specialities, Inc. | Anti-windmilling motor |
| CA2127726A1 (en) * | 1994-07-11 | 1996-01-12 | Nicholas V. J. Agius | Anti-rotation fin-fan device |
-
1997
- 1997-06-12 CN CN97113620A patent/CN1171542A/en active Pending
- 1997-06-20 EP EP97630036A patent/EP0816686A3/en not_active Withdrawn
- 1997-06-26 AU AU27538/97A patent/AU2753897A/en not_active Abandoned
- 1997-06-27 MX MX9704902A patent/MX9704902A/en unknown
- 1997-06-27 KR KR1019970028106A patent/KR980003324A/en not_active Application Discontinuation
- 1997-06-27 BR BR9703763A patent/BR9703763A/en not_active Application Discontinuation
- 1997-06-30 JP JP9173763A patent/JPH1089719A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU2753897A (en) | 1998-01-15 |
| EP0816686A2 (en) | 1998-01-07 |
| KR980003324A (en) | 1998-03-30 |
| EP0816686A3 (en) | 1998-09-30 |
| MX9704902A (en) | 1997-12-31 |
| JPH1089719A (en) | 1998-04-10 |
| BR9703763A (en) | 1998-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |