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WO1996022628A1 - Ventilateur electrique economique pour plafond - Google Patents

Ventilateur electrique economique pour plafond Download PDF

Info

Publication number
WO1996022628A1
WO1996022628A1 PCT/CN1995/000007 CN9500007W WO9622628A1 WO 1996022628 A1 WO1996022628 A1 WO 1996022628A1 CN 9500007 W CN9500007 W CN 9500007W WO 9622628 A1 WO9622628 A1 WO 9622628A1
Authority
WO
WIPO (PCT)
Prior art keywords
yoke frame
hanger
ceiling fan
fan blades
core
Prior art date
Application number
PCT/CN1995/000007
Other languages
English (en)
Inventor
Chi Shing Kwong
Original Assignee
Yung, Kwok, Kee
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 Yung, Kwok, Kee filed Critical Yung, Kwok, Kee
Priority to PCT/CN1995/000007 priority Critical patent/WO1996022628A1/fr
Priority to AU15309/95A priority patent/AU1530995A/en
Priority to ZA951044A priority patent/ZA951044B/xx
Publication of WO1996022628A1 publication Critical patent/WO1996022628A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/187—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators

Definitions

  • the present utility model relates to an electric ceiling fan, particularly to a low speed, long fan blade electric ceiling fan with decoration lamp being able to be hung under its hanger.
  • FIG. 1 A stator core 2 is fitted to a hanger 1; (2) fan blades 5 are joined on a slivering 4 of rotor outer rim; (3) it is of a totally-enclosed construction.
  • the object of the present utility model is to provide a ceiling fa of hollow, thin, light motor with its original fan blades (load) unchanged and to achieve the comprehensive use of steel, to full apply electromagneitcs principle to reduce energy consumption, t carry out heat dissipation in the central hollow, or to replac iron by plastics, and finally to lower manufacturing cost and t raise economic result.
  • the stator core originally used as the structure functiono portion is made or cut hollow and to be replaced by a yoke frame.
  • a yoke frame In comparison with the prior art, such a doing will have th advantages as follows: 1.
  • the utilization ratio of plate is raise since the punching of silicon steel plate can be used as the blan of a table fan electric motor core (in other words, one punching t produce two sets of electric motor material) ; 2. a forced heat dissipation is possible by mounting fan blades over said space; 3. the weight of the motor as a whole can be less.
  • the rotating shaft of ceiling fan of the prior art is split into two, namely being composed of the inner rims of the upper and lower sid yoke frames.
  • the rotating shaft of the present version is a whol member; the whole running race of bearing is fitted to the shaft and then fitted to the rotor core through the yoke frame.
  • first result of which is to eliminate one side yoke frame in comparison with the prior art, and thus to decrease load torque needed in nature, since the rotor and elements attached to it are counted together as load; the second result is to form an open type heat dissipation system.
  • Figure 5 (A) reflects the equivalent force exerting condition of Figure 1 of the accompanying drawings (a commercially available 56 inches ceiling fan) .
  • Figure 5 (B) is the equivalent force exerting conditio not said fan according to the present version in which O is the fulcrum, namely the bearing 6, A is the driving force acting point formed by electromagnetic force M emanated from air gap 7.
  • Fl represents the corresponding supposed acting force of load torque resultant from the upper and lower yoke frames, rotor core 3 and slivering 4, which acts on point B;
  • F2 represents the corresponding supposed acting force of load torque with fan blades 5 being joined to the outer rim of the rotor which acts on point C.
  • the equivalent value of the above-mentioned excess electromagnetic force can be converted into) or be evaluated by experimental approximation) electric motor power to result in great reduction of design power, and to achieve the result of being hollow, thin, light, to save material and to lower cost.
  • Another benefit of the present version is chat the dynamic balance effect is superior to the prior art, the reason is that the mass of revolving elements is relatively decreased and the center of gravity is nearer to the geometric center.
  • Figure 1 is a schematic ceiling fan structure diagram of the pri art.
  • Figure 2 is a schematic diagram of the first embodiment of t present utility model -- with iron members, fan blades joine directly on the rotor yoke frame.
  • Figure 3 is a schematic diagram of another embodiment of t present utility model -- with iron members, fan blades joined o the rotor yoke frame by means of a holder.
  • Figure 4 is a schematic diagram of the third embodiment of t present utility model -- with plastic members, fan blades joined o the rotating shaft by means of a holder.
  • Figure 5(A) and 5(B) are diagrams of force analysis.
  • a metallic yoke frame 10 is provide between a stator core 2 and hanger, with its inner rim fitted t the hanger 1 and its outer rim fitted to the hollow stator core 2 resulting in a set of blank which can be used as table fan electri motor core.
  • the hollow portion is circular, th diameter value will be taken, if it is non-circular, the inscribed dircle diameter value will be taken, all to be over 30 mm.
  • the value is taken as 80mm, about the outside diameter of an ordinary table fan electric motor core.
  • the metallic yoke frame 10 is punched part which, besides being used to hold the stator core 2, can be also used as lamp support (as shown in Figure 2) .
  • Various materials as iron, copper, aluminium or other alleyways can be used, the present instance uses iron to make parts.
  • the outer rim of the rotor iron yoke frame 8 is fitted to a rotor core 3 and its inner rim is fitted to a rotating shaft 9 to form an one-sided rotating shaft structure consisting of the one-sided yoke frame 8 and the one-sided shaft 9.
  • the one-sided yoke frame means a saving of one side in comparison with ceiling fans of the prior art, in addition to a reduced load, an open heat dissipation system is formed.
  • the one-sided rotating shaft is to fit the running race of two bearings 6 on the single rotating shaft 9, on which closely spaced type blades can be attached to dissipate heat by forced raft so as to increase greatly the average carrier capacity of electromagnetic lines.
  • Fan blades consist of blades and blade supports riveted to the blade end, whose joining relationship with the electric motor should allow a mechanical efficiency larger than 1 as aforementioned, namely not to exceed equilibrium point radius principle.
  • an "empirical equilibrium point" wi satisfy the implement required.
  • the air gap 7 is taken reference point with the axis of the hanger 1 as center, namely t radius range of fan blades 5 joined on the yoke frame 8 should n exceed 90% of the radius of air gap 7.
  • the radius air gap 7 in Fig. 2 is 6.5 cm then the joining of fan blades 5 the yoke frame within 5.85 cm will achieve the basic result ( actual value is 4.5 cm) of the present version.
  • fan blades 5 are joined on t rotating shaft 9 by means of the holder 81 as shown in Figure second, fan blades 5 are joined on the rotor yoke frame 8 by mea of the holder 81 as shown in Figure 3; third, fan blades are join directly on the rotor yoke frame 8 as shown in Figure 2.
  • the ceiling fan fill be an all-plastic structure. Agai the joining mode of fan blades to electric motor has thr alternatives.
  • an one-shot forming technique is used, shown in Figure 4, wherein a power lead is preset in the hanger to increase its tensile strength; different martials can selected for use such as carbon fibre plastics, glass fib plastics, nylon or epoxy.
  • the general aim of the present version is to provide a kind of hollow, thin, light ceiling fan so as to greatly lower cost.
  • a compromise can also be used, such as to adopt only hollow structure with other processes remaining unchanged so as to achieve hollow and light result and saving of core material; or just to alter the joining mode of fan blades with the other processes intact so as to achieve the thin and light result as well.
  • the principle of the present utility model is applicable to various ceiling fans made with electric motor, such as shade pole type, permanent magnet synchronous type, capacitor split phase and operational type motor, etc.
  • the hanging of decoration lamp is usually made to the lower end of the hanger 1 (together with appliance fittings) and is omitted in the accompanying drawings as being irrelevant to the subject; ceiling fans with luxurious lamp decoration usually have a decorative shade as schematically shown in Figure 3, Figure 4; the decoration lamp in Figure 2, however, has some novelty in which, due to its stator yoke frame being underneath while its rotor yoke above, there is a relatively large stationary area which can be use to fix lamp or lantern and the lamp will form an integral whole with the ceiling fan and the ceiling fan is made smaller in volume.

Landscapes

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

Abstract

Ventilateur électrique économique pour plafond, constitué d'un moteur électrique, de pales de ventilateur et d'accessoires électriques. Le corps principal du moteur électrique est composé d'un noyau, d'un enroulement, d'un support et de paliers. Un cadre d'appui métallique est prévu entre le noyau statorique et le support, son rebord intérieur est fixé au support, et son rebord extérieur est fixé au noyau statorique creux. Ce ventilateur de plafond est caractérisé en ce qu'il permet des économies de matériau, il est léger, son couple moteur est réduit, il assure des économies d'énergie et sa fabrication est peu coûteuse. Il s'agit d'un nouveau type de produit.
PCT/CN1995/000007 1995-01-17 1995-01-17 Ventilateur electrique economique pour plafond WO1996022628A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN1995/000007 WO1996022628A1 (fr) 1995-01-17 1995-01-17 Ventilateur electrique economique pour plafond
AU15309/95A AU1530995A (en) 1995-01-17 1995-01-17 High efficiency electric ceiling fan
ZA951044A ZA951044B (en) 1995-01-17 1995-02-09 High efficiency electric ceiling fan

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/CN1995/000007 WO1996022628A1 (fr) 1995-01-17 1995-01-17 Ventilateur electrique economique pour plafond
ZA951044A ZA951044B (en) 1995-01-17 1995-02-09 High efficiency electric ceiling fan

Publications (1)

Publication Number Publication Date
WO1996022628A1 true WO1996022628A1 (fr) 1996-07-25

Family

ID=25739137

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1995/000007 WO1996022628A1 (fr) 1995-01-17 1995-01-17 Ventilateur electrique economique pour plafond

Country Status (2)

Country Link
WO (1) WO1996022628A1 (fr)
ZA (1) ZA951044B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002065624A1 (fr) * 2001-02-12 2002-08-22 Siemens Vdo Automotive Inc. Moteur electrique a courant continu qui ne requiere pas de carter exterieur et est dote de brosses et de bobines disposees dans des emplacements spatiaux efficaces
WO2015180494A1 (fr) * 2014-05-27 2015-12-03 新昌县三新空调风机有限公司 Nouveau ventilateur industriel
TWI617743B (zh) * 2016-06-28 2018-03-11 建準電機工業股份有限公司 吊扇
US10533561B2 (en) 2016-06-28 2020-01-14 Sunonwealth Electric Machine Industry Co., Ltd. Ceiling fan

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2119398A (en) * 1937-09-28 1938-05-31 Gen Electric Combined ceiling fan and light
AU411690B2 (en) * 1967-04-18 1971-03-30 Thegeneral Electric Co. Of India Private Ltd Improvements in electric induction motors
US4438359A (en) * 1982-04-14 1984-03-20 Emerson Electric Co. Dynamoelectric machine structure and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2119398A (en) * 1937-09-28 1938-05-31 Gen Electric Combined ceiling fan and light
AU411690B2 (en) * 1967-04-18 1971-03-30 Thegeneral Electric Co. Of India Private Ltd Improvements in electric induction motors
US4438359A (en) * 1982-04-14 1984-03-20 Emerson Electric Co. Dynamoelectric machine structure and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002065624A1 (fr) * 2001-02-12 2002-08-22 Siemens Vdo Automotive Inc. Moteur electrique a courant continu qui ne requiere pas de carter exterieur et est dote de brosses et de bobines disposees dans des emplacements spatiaux efficaces
WO2015180494A1 (fr) * 2014-05-27 2015-12-03 新昌县三新空调风机有限公司 Nouveau ventilateur industriel
TWI617743B (zh) * 2016-06-28 2018-03-11 建準電機工業股份有限公司 吊扇
US10533561B2 (en) 2016-06-28 2020-01-14 Sunonwealth Electric Machine Industry Co., Ltd. Ceiling fan

Also Published As

Publication number Publication date
ZA951044B (en) 1995-10-10

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