CN201054537Y

CN201054537Y - AC power supply brushless DC suspending fan electromotor

Info

Publication number: CN201054537Y
Application number: CNU2007200527405U
Authority: CN
Inventors: 张家驹
Original assignee: LV TAIAN
Current assignee: LV TAIAN
Priority date: 2007-06-09
Filing date: 2007-06-09
Publication date: 2008-04-30
Anticipated expiration: 2017-06-09

Abstract

The utility model discloses an alternating current power supply brush-less direct current ceiling-fan motor with an external rotor structure, which comprises a motor shaft, a casing and an end cover. The casing and the end cover are respectively provided with a bearing, and are arranged on the motor shaft through a bearing; the casing is internally provided with a magnetic steel, and a magnetic yoke is arranged between the magnetic steel and the casing; moreover, the motor shaft is fixed with a stator core which is internally embedded with a rotor winding and is provided with a control circuit board. Experiment proves that the motor consumes only 50 percent of the energy of the single-phase alternating motor, 25 percent of copper and 40 percent of iron as well as possessing 70 percent of the volume, with extremely obvious energy-saving and material-saving effects, high operation efficiency (ranging from 70 percent to 80 percent), perfect energy-saving effect, large starting torque and stable operation; besides, the utility model is capable of step-less speed regulation, and can be used in the fan field as well as the fields of electric bicycle and washer.

Description

A kind of Alternating Current Power Supply brushless direct-current ceiling-fan motor

Technical field

The utility model relates to the outer-rotor structure Alternating Current Power Supply brushless direct-current ceiling-fan motor of a kind of motor, particularly a kind of magneto.

Background technology

Present ceiling fan generally adopts the monophase ac capacitance-run Induction Motor-Driven.This kind motor operational efficiency low (32-40%), energy consumption are big, and consumptive material is many, volume is big, and these motors mostly speed is non-adjustable or come speed governing by the gear tap, speed adjusting performance is poor, galloping.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides that a kind of energy consumption is low, consumptive material is few, running is steady, the Alternating Current Power Supply brushless direct-current ceiling-fan motor of outer-rotor structure that can stepless speed regulation.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of Alternating Current Power Supply brushless direct-current ceiling-fan motor, comprise motor shaft, casing and end cap, a bearing respectively is housed on casing and the end cap, by bearing casing and end cap are installed on the motor shaft, magnet steel is arranged in the casing, between magnet steel and the casing yoke is arranged, be fixed with stator core on the motor shaft, stud with stator winding in the stator core, control circuit board is installed in the stator core, and the lead-in wire of stator winding directly is welded on the control circuit board, and control circuit board links to each other with AC power by the power supply lead wire, the ceiling fan flabellum directly is fixed on the housing of external rotor, and the screw thread of being convenient to fix is arranged on the axle head; Stator winding can be single-phase winding, two phase windings or three phase windings; Having on the control circuit board with the single-chip microcomputer is the control core system, controls startup, running, speed governing and the rotating etc. of motor by program.

The beneficial effects of the utility model are: owing to adopted permanent-magnet brushless DC electric machine to drive the ceiling fan running, make that operational efficiency height (70-80%), the energy consumption of ceiling fan are low; External-rotor-type structure and be the control core system with the single-chip microcomputer, realized that the ceiling fan running is steady, consumptive material is few and noise is low, energy stepless speed regulation, and can regulate slowly till satisfaction according to the comfort level of people's sensation, The clear breeze blows gently, pleasant pleasant comfort to give the people.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a schematic appearance of the present utility model;

Fig. 2 is that the novel motor shaft of this use is to cutaway view.

Embodiment

With reference to Fig. 1, Fig. 2, a kind of Alternating Current Power Supply brushless direct-current ceiling-fan motor, comprise motor shaft 10, casing 9 and end cap 7, it is characterized in that respectively being equipped with on casing 9 and the end cap 7 bearing 5, by bearing 5 casing 9 and end cap 7 are installed on the motor shaft 10, magnet steel 2 is arranged in the casing 9, between magnet steel 2 and the casing 9 yoke 3 is arranged, be fixed with stator core 8 on the motor shaft 10, stud with stator winding 1 in the stator core 8, control circuit board 4 is installed in the stator core 8, the lead-in wire of stator winding 1 directly is welded on the control circuit board 4, control circuit board 4 links to each other with AC power by power supply lead wire 6, and flabellum 11 as welding on the housing 9 that directly is fixed on external rotor, has the screw thread of being convenient to fixed electrical machinery by screw or other modes on the axle head.

Be stained with the permanent magnet magnet steel 2 that has magnetized on the rotor case 9 of motor, magnet steel 2 can be made multipolar system magnet ring or magnetic shoe shape, and its material can be rare-earth Nd-Fe-B (Nd-Fe-B) or different in nature ferrite; Between magnet steel 2 and the housing 9 yoke 3 is arranged, yoke 3 is made of permeability magnetic material such as mild steel, and it makes motor form a closed magnetic circuit; Be fixed with stator core 8 on the motor shaft 10, iron core 8 is the iron core of teeth groove structure, it is by high magnetic conduction, low-loss material such as osmanthus steel disc punching out form, be wound with stator winding 1 on the stator core 8, stator winding 1 can be single-phase winding, two phase windings or three phase windings, it forms with the enamel covered wire coiling, stator winding 1 leaves stator lead-out wire 6, stator lead-out wire 6 is drawn from hollow motor shaft 10, interface as external power supply, this motor can directly be powered by single phase alternating current (A.C.) (civil power), do not need to join in addition DC power supply, one side of stator core 8 is equipped with control circuit board 4, and having on the control circuit board 4 with the single-chip microcomputer is the control core system, controls the startup of motor by program, running, speed governing and rotating etc., rotor can rotate freely by two motor bearingss 5 up and down, two end caps 7 are contained in housing 9 two ends up and down, and motor is formed a whole, and flabellum 11 usefulness screws directly are fixed on the housing 9 of external rotor; The screw thread that the whole wind fan pass is crossed on the axle head is fixed on suspension rod or the pedestal, connects easily.

The utility model external-rotor-type Alternating Current Power Supply brushless direct-current ceiling-fan motor has the characteristic of permanent magnet DC motor, it moves with autocontrol mode, operational efficiency height (70-80%), good energy-conserving effect, starting torque is big, running is steady, experimental results show that, this energy consumption of electrical machinery only for load motor 50%, volume is 70%, copper consumption is 25%, be 40% with the iron amount, energy-conservation, the material-saving effect is very obvious.

The utility model external-rotor-type Alternating Current Power Supply brushless direct-current ceiling-fan motor can be used in the fan art of other form, also can be used in other electrical equipment such as electric flatcar, fields such as washing machine.

Claims

1. Alternating Current Power Supply brushless direct-current ceiling-fan motor, comprise motor shaft (10), casing (9) and end cap (7), it is characterized in that on casing (9) and the end cap (7) bearing (5) being housed respectively, by bearing (5) casing (9) and end cap (7) are installed on the motor shaft (10), magnet steel (2) is arranged in the casing (9), between magnet steel (2) and the casing (9) yoke (3) is arranged, be fixed with stator core (8) on the motor shaft (10), stud with stator winding (1) in the stator core (8), control circuit board (4) is installed in the stator core (8), the lead-in wire of stator winding (1) directly is welded on the control circuit board (4), and control circuit board (4) links to each other with AC power by power supply lead wire (6).

2. a kind of Alternating Current Power Supply brushless direct-current ceiling-fan motor according to claim 1 is characterized in that described motor shaft (10) is a hollow-core construction, and power supply lead wire (6) is drawn from motor shaft (10) hollow parts.