CN204103727U - A kind of three-phase brushless DC fan motor - Google Patents
A kind of three-phase brushless DC fan motor Download PDFInfo
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- CN204103727U CN204103727U CN201420351289.7U CN201420351289U CN204103727U CN 204103727 U CN204103727 U CN 204103727U CN 201420351289 U CN201420351289 U CN 201420351289U CN 204103727 U CN204103727 U CN 204103727U
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Abstract
The utility model proposes a kind of three-phase brushless DC fan motor, comprising: described motor is three-phase brushless dc motor, comprise motor body and driver, described driver is electrically connected 24V power supply adaptor; In motor body, stator winding is three-phase symmetrical star connection.The utility model proposes a kind of commutation easy, easy to use, the three-phase brushless DC fan motor that noise is little.
Description
Technical field
The utility model relates to electro-mechanical arts, refers to a kind of three-phase brushless DC fan motor especially.
Background technology
Current pedestal fan adopts AC220V alternating current machine, and this alternating current machine adopts capacitor split-phase monophase machine, so be generally referred to as single phase alternating current (A.C.) fan electromotor, it comprises two windings, and main winding is for running winding, and auxiliary winding is for starting winding; Main winding directly connects AC220V power supply, connects AC220V power supply after auxiliary winding series capacitance.By start-up capacitance phase shift effect, single-phase alternating current is isolated the alternating current of another phase difference 90 degree.This two-phase alternating current is sent into respectively two groups or four groups of motor coil windings, make to form rotating magnetic field in motor, rotating magnetic field produces induced current in rotor, and the magnetic field rotating magnetic direction that induced current produces is contrary, is advanced into rotation status by rotating magnetic field; The shortcoming that this structure exists is, easily produces dead point when starting, and noise is large, and electric current is large, and its various functions is limited, and the effective power change therefore exported is little, inefficiency.
Under the transition form of energy, load motor rotates mainly through stressed in magnetic field of hot-wire coil, namely mechanical energy is converted electrical energy into, therefore a part of electric energy can be caused to become interior energy, and load motor self structure is easily generated heat, make Coil resistance become large, the increase of internal resistance then can make to consume interior can be larger, the mechanical energy therefore produced reduces accordingly.Therefore, under itself structural limitations of load motor, the low conversion rate of its useful work is under comparable conditions made.
In addition, common pedestal fan generally adopts load motor, therefore after mains failure, if AC220V power supply can not be provided, then cannot use fan, a 220V supply socket namely must be provided to power, therefore limit its flexibility used and convenience, make it arbitrarily move to use from the place away from socket, or the putting position be more suitable for is provided.
Utility model content
The utility model proposes a kind of commutation easy, easy to use, the three-phase brushless DC fan motor that noise is little.
The technical solution of the utility model is achieved in that
A kind of three-phase brushless DC fan motor, is characterized in that, comprising: described motor is three-phase brushless dc motor, comprise motor body and driver, described driver is electrically connected 24V power supply adaptor; In motor body, stator winding is three-phase symmetrical star connection.
The three-phase brushless DC fan motor that the utility model provides, because motor adopts three-phase brushless dc motor, therefore it can be commutated by electronically steerable, and control rate is fast and accurate; And connect external power source due to it by adapter, therefore without the need to requiring the voltage of the external power source of motor, use more convenient, and noise is little.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the decomposing schematic representation of a kind of three-phase brushless DC fan motor of the utility model;
Fig. 2 is the main control circuit figure of a kind of three-phase brushless DC fan motor of the utility model;
Fig. 3 is the braking circuit figure of a kind of three-phase brushless DC fan motor of the utility model;
Fig. 4 is the voltage stabilizing circuit figure of a kind of three-phase brushless DC fan motor of the utility model;
Fig. 5 is the positive and negative rotation circuit figure of a kind of three-phase brushless DC fan motor of the utility model;
Fig. 6 is the alignment circuit figure of a kind of three-phase brushless DC fan motor of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 to Fig. 6, a kind of three-phase brushless DC fan motor, comprising: described motor is three-phase brushless dc motor, comprises motor body and driver, and described driver is electrically connected 24V power supply adaptor; In motor body, stator winding is three-phase symmetrical star connection.Wherein driver is made up of power electronic device and integrated circuit etc., and its function is: accept the startup of motor, stopping, brake signal, to control the startup of motor, stopping and braking; Accept position sensor signal and rotating signal, be used for controlling the break-make of inverter bridge each power tube, produce continuous torque; Accept speed command and feedback speed signal, be used for controlling and adjustment rotating speed; Protection and display etc. are provided.Three-phase brushless DC fan motor adopts direct current 24V adapter to provide power supply, make it in practical more flexibly, convenient, human nature words.Because fan to be installed additional one group or several groups of nickel storage batterys, if when mains failure, DC24V power supply can be provided to come to the brushless DC fan motor for fan by storage battery, ensure and can continue to provide convenience to life to fan.Fan also arbitrarily can put the pleasant position of people simultaneously.The restriction of supply socket need not be subject to.Because its power supply can confess the realization of self-sustaining independent one.And the power consumption needed for the assembling electricity of different storage battery and its reality, just can realize the service time reaching 6-8 hour, eliminate and worry that the trouble that storage battery does not have electricity to bring very is soon worried.And storage battery also can as battery of mobile phone, cycle charging uses, and therefore its convenience brought is unlimited.
Preferably, motor body comprises: magnetite part, coil circuit part and rotating shaft part; Wherein magnetite part comprises bonnet 1, magnetite 2, magnetite shell 3; Bonnet 1 is the box body of upper end open, is provided with host cavity 4 in it, and bottom is provided with the first opening; Magnetite shell 3 is fixed on outside magnetite 2, and both are contained in host cavity 4;
Coiler part comprises rear coil holder 5, silicon steel sheet 6, coil, front coil holder 7 and drived control plate 9, center bearing bracket and upper cover 12, its coil is fixed on each blade of silicon steel sheet 6, and front coil holder 7 and rear coil holder 5 are fixed on the two ends of silicon steel sheet 6, and the upper end of front coil holder 7 is provided with multiple buckle 8; Drived control plate 9 is fixed on the upper end of front coil holder 7, and the middle part of drived control plate 9 is provided with the second opening 14, and multiple buckle 8 passes the second opening 14 grasping on drived control plate 9; Center bearing bracket comprises center column 10 and is located at the ring flange 11 above center column 10; Center column 10 through drived control plate 9, front coil holder 7, silicon steel sheet 6 and rear coil holder 5, and interfixes with it; Center column 10 is hollow cylinder; Upper cover 12 to be fixed on drived control plate 9 and to which is provided with three opening 13 corresponding with ring flange 11, and ring flange 11 is interfered and is fixed in the 3rd opening 13, and upper end protrudes from the top of upper cover 12; The surrounding of upper cover 12 is fixed on the top of bonnet 1;
Shaft divides and comprises main shaft 15, clutch shaft bearing 16 and the second bearing 17, and two pads 19, spring 20 and main shaft fixture 18; What under type all presented by clutch shaft bearing 16 and the second bearing 17 is fixed in center column 10, and the lower end of clutch shaft bearing 16 is located at by a pad 19, and spring 20 is fixed between pad 19 and main shaft fixture 18; Be provided with another pad 19 between clutch shaft bearing 16 and the second bearing 17, main shaft 15 passes the 3rd opening 13, second bearing 17, pad 19, clutch shaft bearing 16 and another pad 19, spring 20 is rear and main shaft fixture 18 is fixing.Clutch shaft bearing 16 of the present utility model and the second bearing 17 adopt ball bearing, and therefore improve about 3 times than common containing the lubricating cup scholar life-span its useful life, it belongs to static motor simultaneously, and no-load current is little, and efficiency is high.
Preferably, the top of described ring flange 11 is provided with the outward flange being evenly located at three raised lines the 21, three opening 13 and is respectively equipped with the breach 22 corresponding with three raised lines 21; The surrounding of ring flange 11 is provided with three lugs 23, and lug 23 is provided with fixing hole 24, and upper cover 12 is provided with first through hole 25 corresponding with fixing hole 24, and multiple fixture is each passed through the first through hole 25 and is fixed in fixing hole 24.
Preferably, the side of bonnet 1 is provided with one second through hole 26, back shaft 27 and fixes through the second through hole 26 and bonnet 1, is provided with distance piece 28 between the lateral wall of back shaft 27 and bonnet 1.
Preferably, a latch 29 is fixed in the top of main shaft 15, and top is provided with external screw thread.
Preferably, be also provided with position transducer in described motor body, the Master control chip on described position transducer and described driver is electrically connected.
The utility model three-phase brushless DC fan motor develops with electronic technology, microelectric technique, digital technology, automatic control technology and material science etc. and is closely connected.It is not limited only to alternating current-direct current field, also relates to the fields such as power conversion that is electronic, that generate electricity and sensing.Use three-phase brushless dc motor, can realize PWM stepless speed regulation, the air quantity change size of very level and smooth change fan, reaches the air quantity required for user.Namely can carry out the rotating speed adjusting motor by the air quantity required for user, a lot of gears can be realized, or even tens gears meet required air force.Simultaneously motor is according to the change of rotating speed, and required energy consumption constantly changes, even can lower (reaching several watts).Therefore its safer, reliable, energy-conserving and environment-protective.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. a three-phase brushless DC fan motor, is characterized in that, comprising: described motor is three-phase brushless dc motor, comprises motor body and driver, and described driver is electrically connected 24V power supply adaptor; In motor body, stator winding is three-phase symmetrical star connection.
2. a kind of three-phase brushless DC fan motor as claimed in claim 1, it is characterized in that, motor body comprises:
Magnetite part, coil circuit part and rotating shaft part;
Wherein magnetite part comprises bonnet, magnetite, magnetite shell; Bonnet is the box body of upper end open, is provided with host cavity in it, and bottom is provided with the first opening; Magnetite shell is fixed on outside magnetite, and both are contained in host cavity;
Coiler part comprises rear coil holder, silicon steel sheet, coil, front coil holder and drived control plate, center bearing bracket and upper cover, its coil is fixed on each blade of silicon steel sheet, and front coil holder and rear coil holder are fixed on the two ends of silicon steel sheet, and the upper end of front coil holder is provided with multiple buckle; Drived control plate is fixed on the upper end of front coil holder, and the middle part of drived control plate is provided with the second opening, and multiple buckle passes the second opening grasping on drived control plate; Center bearing bracket comprises center column and is located at the ring flange above center column; Center column through drived control plate, front coil holder, silicon steel sheet and rear coil holder, and interfixes with it; Center column is hollow cylinder; Upper cover to be fixed on drived control plate and to which is provided with three opening corresponding with ring flange, and ring flange is interfered and is fixed in the 3rd opening, and upper end protrudes from the top of upper cover; The surrounding of upper cover is fixed on the top of bonnet;
Shaft divides and comprises main shaft, clutch shaft bearing and the second bearing, and two insulating trips, spring and main shaft fixture; What under type all presented by clutch shaft bearing and the second bearing is fixed in center column, and the lower end of clutch shaft bearing is located at by a pad, and spring is fixed between pad and main shaft fixture; Be provided with another pad between clutch shaft bearing and the second bearing, main shaft is fixed with main shaft fixture through after the 3rd opening, the second bearing, pad, clutch shaft bearing and another pad, spring.
3. a kind of three-phase brushless DC fan motor as claimed in claim 2, is characterized in that, the top of described ring flange is provided with evenly is located at three raised lines, and the outward flange of the 3rd opening is respectively equipped with the breach corresponding with three raised lines; The surrounding of ring flange is provided with three lugs, and lug is provided with fixing hole, above covers and is provided with first through hole corresponding with fixing hole, and multiple fixture is each passed through the first through hole and is fixed in fixing hole.
4. a kind of three-phase brushless DC fan motor as claimed in claim 2, is characterized in that, the side of bonnet is provided with one second through hole, and a back shaft is fixed through the second through hole and bonnet, is provided with distance piece between back shaft and the lateral wall of bonnet.
5. a kind of three-phase brushless DC fan motor as claimed in claim 2, is characterized in that, a latch is fixed in the top of main shaft, and top is provided with external screw thread.
6. a kind of three-phase brushless DC fan motor as claimed in claim 1, is characterized in that, be also provided with position transducer in described motor body, and the Master control chip on described position transducer and described driver is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351289.7U CN204103727U (en) | 2014-06-27 | 2014-06-27 | A kind of three-phase brushless DC fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351289.7U CN204103727U (en) | 2014-06-27 | 2014-06-27 | A kind of three-phase brushless DC fan motor |
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| Publication Number | Publication Date |
|---|---|
| CN204103727U true CN204103727U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420351289.7U Active CN204103727U (en) | 2014-06-27 | 2014-06-27 | A kind of three-phase brushless DC fan motor |
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| CN (1) | CN204103727U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104201A (en) * | 2014-06-27 | 2014-10-15 | 甘琪 | Three-phase brushless direct-current fan motor |
| CN109245372A (en) * | 2018-10-29 | 2019-01-18 | 深圳市艺峰马达配件有限公司 | A kind of fan brushless motor |
-
2014
- 2014-06-27 CN CN201420351289.7U patent/CN204103727U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104201A (en) * | 2014-06-27 | 2014-10-15 | 甘琪 | Three-phase brushless direct-current fan motor |
| CN109245372A (en) * | 2018-10-29 | 2019-01-18 | 深圳市艺峰马达配件有限公司 | A kind of fan brushless motor |
| CN109245372B (en) * | 2018-10-29 | 2023-10-20 | 深圳市艺峰马达配件有限公司 | Brushless motor of fan |
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