CN203189293U - Driving device of electric fan - Google Patents
Driving device of electric fan Download PDFInfo
- Publication number
- CN203189293U CN203189293U CN 201320201361 CN201320201361U CN203189293U CN 203189293 U CN203189293 U CN 203189293U CN 201320201361 CN201320201361 CN 201320201361 CN 201320201361 U CN201320201361 U CN 201320201361U CN 203189293 U CN203189293 U CN 203189293U
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- China
- Prior art keywords
- electric fan
- stator
- rotor
- brushless motor
- circuit board
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- Expired - Lifetime
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a driving device of an electric fan. The driving device of the electric fan comprises a direct current brushless motor and a speed-reduction motor, wherein fan vanes are arranged at one end of the direct current brushless motor and are driven by the direct current brushless motor to rotate, and the speed-reduction motor is used for driving an installation seat of the electric fan to swing. The direct current brushless motor comprises a stator, a rotor, a rotation shaft and a control circuit board, wherein the control circuit board is fixedly connected with the stator, the rotor covers the stator, the rotation shaft is fixedly connected with the rotor, and one end of the rotation shaft sequentially penetrates the stator and the control circuit board and protrudes and extends out to be connected with the fan vanes. Therefore, the driving device of the electric fan is simple in structure and low in production cost. The direct current brushless motor is used for driving the fan vanes, so that the driving device of the electric fan is reliable in performance, saves energy, and can realize stepless speed regulation and remote control.
Description
Technical field
The utility model relates to a kind of electric fan drive unit, relates more specifically to a kind of drive unit with dc brushless motor.
Background technique
Electric fan is a kind of motoring flabellum rotation that utilizes, and reaches the electrical equipment that makes air accelerate circulation, and it is widely used in the daily productive life.Electric fan mainly is made up of parts such as column, fan head, flabellum, guard and control gear, and wherein, fan head mainly comprises motor, front and rear cover and the wind pushing mechanism of shaking the head, and motor is its core component.A large amount of motors that use are AC motor on the existing electric fan, Wechselstrommotor is that hot-wire coil is stressed and rotate in magnetic field, electric energy is converted into mechanical energy, because coil resistance, its inevitable some electric energy will be converted into heat energy, therefore relatively power consumption cause the waste of resource in the use, and the speed adjusting performance of AC motor is poor.
Therefore, many production firms begin one's study direct current generator are applied on the electric fan.Existing direct current generator mainly includes brush direct current motivation and brshless DC motor; Wherein, having two brushes (copper brush or carbon brush) of brush direct current generator to be fixed on the motor bonnet direct both positive and negative polarity with power supply by insulation base is incorporated on the phase changer of rotor, and phase changer has been communicated with epitrochanterian coil, two blocks of fixing magnet form active forces and rotate on three continuous checkers of coil polarity and the stator, because phase changer and rotor are fixed together, and brush is fixed together with stator, when motor rotates, brush constantly rubs with phase changer and produces a large amount of resistances and heat, therefore, also there is inefficiency, the problem that loss is big, and carbon brush is easy to wear, change comparatively trouble, the life-span is short.
Compare, brshless DC motor has not only kept the good speed adjusting performance of traditional direct current generator but also has had the characteristics of fricton-tight contact and commutation spark, therefore, have plurality of advantages such as reliability height, long service life, operational efficiency height, low, the no excitation loss of noise and good speed adjustment features, thereby brshless DC motor is used in the main flow that will become the WeiLai Technology development on the electric fan.
Therefore, be necessary to provide a kind of reliable performance, the energy-conservation and drive unit that can realize stepless speed regulation to solve the deficiencies in the prior art.
The model utility content
The purpose of this utility model is to provide a kind of reliable performance, energy-conservation and can realize the electric fan drive unit of stepless speed regulation.
For achieving the above object, the technical solution of the utility model is: a kind of electric fan drive unit is provided, be connected on the fitting seat of electric fan, it comprises dc brushless motor and reducing motor, one end of described dc brushless motor is provided with flabellum, rotate by described driven by Brush-Less DC motor flabellum, described reducing motor is used for driving the fitting seat swing of electric fan, wherein, described dc brushless motor comprises stator, rotor, rotatingshaft and control circuit board, wherein, control circuit board is fixedly connected on the described stator, described rotor housing is located at outside the described stator, and described rotatingshaft is fixedly connected on the described rotor, and an end of described rotatingshaft passes described stator successively, described control circuit board also protrudes out away for connecting flabellum.
Preferably, described rotor has hollow structure, and is ccontaining and be surrounded with permanent magnet in the described hollow structure.
Preferably, described rotor has a diapire, and the other end of described rotor forms an opening, offers porosely on the described diapire, is provided with bearing in the described hole, and the other end of described rotatingshaft is arranged on the bearing in the described hole.
Preferably, described stator is provided with coil winding, and described coil winding and described control circuit board electrically connect, and described stator has a center hole, and described rotatingshaft passes described center hole and protrudes out away.
Preferably, described electric fan drive unit comprises that also one is the connecting plate of kink shape, described dc brushless motor is fixedly connected on the sidewall of described connecting plate, and described reducing motor is fixedly connected on another sidewall of described connecting plate, and described connecting plate is installed on the fitting seat of electric fan.
Preferably, described electric fan drive unit also comprises a connecting rod, one end of described connecting rod is articulated on the output shaft of described reducing motor, and the other end of described connecting rod is articulated on the fitting seat of electric fan, and described reducing motor drives the fitting seat swing of electric fan by described connecting rod.
Compared with prior art, because electric fan drive unit of the present utility model, comprise dc brushless motor and reducing motor, its dc brushless motor comprises stator, rotor, rotatingshaft and control circuit board, wherein, control circuit board is fixedly connected on the described stator, and described rotor housing is located at outside the described stator, described rotatingshaft is fixedly connected on the described rotor, and an end of described rotatingshaft passes described stator, described control circuit board successively and protrudes out away for connecting flabellum; Therefore, it is simple in structure, and cost of production is low, and by this driven by Brush-Less DC motor flabellum, makes the reliable performance, energy-conservation and can realize stepless speed regulation of electric fan drive unit, can also realize remote control control simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model electric fan.
Fig. 2 is the structural representation of the utility model electric fan drive unit.
Fig. 3 is the structural representation of another angle of Fig. 2.
Fig. 4 is the exploded view of dc brushless motor among Fig. 2.
Fig. 5 is the exploded view of another angle of dc brushless motor among Fig. 2.
Fig. 6 is the structural representation of reducing motor among Fig. 2.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label represents similar elements in the accompanying drawing.Electric fan drive unit provided by the utility model, owing to used dc brushless motor 1, more energy-conservation in the use, and its structure is simpler.
In conjunction with shown in Figure 1, electric fan described in the utility model comprises fan head and column 5, fan head is connected in the upper end of column 5 by fitting seat 4, and this fitting seat 4 flexibly connects with column 5, described fan head comprises guard, flabellum 3 and electric fan drive unit, described electric fan drive unit is used for driving flabellum 3 and rotates, but thereby 4 swings of the seat of drive installation simultaneously realize the swing of fan head.
As Fig. 2, shown in Figure 3, described electric fan drive unit comprises dc brushless motor 1 and reducing motor 2, and both install by a connecting plate 60 that is kink shape, and connecting plate 60 is connected with fitting seat 4; Particularly, described connecting plate 60 is L type structure, and an end of dc brushless motor 1 is connected on the vertical sidewall of connecting plate 60, and the rotatingshaft 40 of dc brushless motor 1 stretches out outside the described vertical sidewall, is used for connecting flabellum; Reducing motor 2 is connected on the sidewall of level of connecting plate 60, and the output shaft 21 of reducing motor 2 passes this sidewall, and the output shaft 21 of reducing motor 2 is articulated by connecting rod 22 and fitting seat 4; And the sidewall of the level of connecting plate 60 is connected with fitting seat 4.Drive flabellum by dc brushless motor 1 and rotate, therefore, drive unit simple in structure, and saving power; The power supply unit of the utility model dc brushless motor 1 can be generally low pressure such as 12V, 24V, 36V directly with the direct current input, also can be the Ac input, when importing with Ac, then needs an external transducer so that Ac is converted to direct current.
As Fig. 2-shown in Figure 5, described dc brushless motor 1 comprises stator 20, rotor 30, rotatingshaft 40 and control circuit board 50, and wherein, described control circuit board 50 is fixedly connected on the stator 20; Rotor 30 covers at outside the stator 20, one end of rotatingshaft 40 is fixedly connected on the described rotor 30, and the other end of described rotatingshaft 40 passes described stator 20, control circuit board 50 and protrudes out away, be used for connecting flabellum, more preferably, have certain interval 35 between the control circuit board of fixing on rotor 30 and the stator 20 50, take place directly to contact when preventing rotor 30 rotations with between the control circuit board 50, thereby reduce friction, thereby rotational velocity and the stationarity of increase rotor 30.Particularly, offer porosely on the bottom of described rotor 30, be provided with bearing in this hole, an end of rotatingshaft 40 is arranged on the bearing in this hole.
As Fig. 4-shown in Figure 5, described stator 20 has a center hole 201, and stator 20 is provided with a plurality of coil winding 202, and described coil winding 202 electrically connects with described control circuit board 50, in the present embodiment, be provided with four coil winding 202 uniformly along center hole 201; Therefore, these stator 20 windings are four utmost points, and certainly, not as limit, described stator 20 windings can also be set to multipole windings such as sextupole, the ends of the earth; During installation, rotor 30 covers at outside the stator 20, and rotatingshaft 40 passes center hole 201 and protrudes out away.
Described rotor 30 has hollow structure, and ccontaining and be surrounded with permanent magnet (among the figure mark) in the described hollow structure, preferably, permanent magnet adopts the rubber magnet material to make, and the dc brushless motor that adopts rubber magnet to make has wide range speed control and high efficiency advantage.During work, rotate thereby rotor 30 rotates drive rotatingshaft 40 around stator 20, change the prior art rotor and be placed in the stator and the mode of rotating in stator, working efficiency is higher; The control circuit board 50 outer ends that stretch out of rotatingshaft 40 are used for being connected with flabellum.
In conjunction with Fig. 2, Fig. 3, shown in Figure 6, described reducing motor 2 has an output shaft 21, and its output shaft 21 is connected with fitting seat 4 by connecting rod 22, with 4 swings of drive installation seat.Particularly, an end of described connecting rod 22 is articulated on the output shaft 21 of reducing motor 2, and the other end of connecting rod 22 is articulated on the fitting seat 4 of electric fan, and described reducing motor 2 promotes fitting seat 4 swings by described connecting rod 22, thereby realizes the swing of electric fan head.
Described below in conjunction with Fig. 1-Fig. 6, the working procedure of the utility model electric fan drive unit is described.
Dc brushless motor 1 of the present utility model, reducing motor 2 are installed on the connecting plate 60, and this connecting plate 60 is connected on the fitting seat 4, and are rotationally connected with by fitting seat 4 on the column 5 of electric fan, and an end of dc brushless motor 1 is connected with flabellum 3.
Therefore, during work, dc brushless motor 1 energising, by the control of 50 pairs of input currents of control circuit board and voltage, thereby change current wave alternative frequency and waveform on the coil winding 202 be input to stator 20, thereby around coil winding 202, form one around the magnetic field of how much axle center rotations of motor, this magnetic field acts on the permanent magnet in the rotor 30, drive rotor 30 and rotate, thereby rotatingshaft 40 is rotated, rotatingshaft 40 rotates and the rotation of driving flabellum.
When needs were swung the electric fan head, 2 operations of control reducing motor were rotated by these reducing motor 2 drivening rods 22, swing to drive the swing of electric fan head thereby promote connecting base 4.Correspondingly, when not needing the electric fan head to swing, then make reducing motor 2 out of service getting final product.
Because electric fan drive unit of the present utility model, comprise dc brushless motor 1 and reducing motor 20, its dc brushless motor 1 comprises stator 20, rotor 30, rotatingshaft 40 and control circuit board 50, wherein, control circuit board 50 is fixedly connected on the described stator 20, described rotor 30 covers at outside the described stator 20, described rotatingshaft 40 is fixedly connected on the described rotor 30, and an end of described rotatingshaft 40 passes described stator 20, described control circuit board 50 successively and protrudes out away for connecting flabellum 3; Therefore, it is simple in structure, and cost of production is low, and drives flabellum 3 by this dc brushless motor 1, makes the reliable performance, energy-conservation and can realize stepless speed regulation of electric fan drive unit, can also realize remote control control simultaneously.
The control circuit board 50 that the utility model is related and concrete structure and the working principle of coil winding 202 are well known to those of ordinary skill in the art, no longer do detailed description at this.
Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of doing according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (6)
1. electric fan drive unit, be connected on the fitting seat of electric fan, it comprises dc brushless motor and reducing motor, one end of described dc brushless motor is provided with flabellum, rotate by described driven by Brush-Less DC motor flabellum, described reducing motor is used for driving the fitting seat swing of electric fan, it is characterized in that: described dc brushless motor comprises stator, rotor, rotatingshaft and control circuit board, wherein, control circuit board is fixedly connected on the described stator, described rotor housing is located at outside the described stator, described rotatingshaft is fixedly connected on the described rotor, and an end of described rotatingshaft passes described stator successively, described control circuit board also protrudes out away for connecting flabellum.
2. electric fan drive unit as claimed in claim 1, it is characterized in that: described rotor has hollow structure, and is ccontaining and be surrounded with permanent magnet in the described hollow structure.
3. electric fan drive unit as claimed in claim 1, it is characterized in that: described rotor has a diapire, and the other end of described rotor forms an opening, offers porose on the described diapire, be provided with bearing in the described hole, the other end of described rotatingshaft is arranged on the bearing in the described hole.
4. electric fan drive unit as claimed in claim 3, it is characterized in that: described stator is provided with coil winding, described coil winding and described control circuit board electrically connect, and described stator has a center hole, and described rotatingshaft passes described center hole and protrudes out away.
5. electric fan drive unit as claimed in claim 1, it is characterized in that: comprise that also one is the connecting plate of kink shape, described dc brushless motor is fixedly connected on the sidewall of described connecting plate, described reducing motor is fixedly connected on another sidewall of described connecting plate, and described connecting plate is installed on the fitting seat of electric fan.
6. electric fan drive unit as claimed in claim 1, it is characterized in that: also comprise a connecting rod, one end of described connecting rod is articulated on the output shaft of described reducing motor, the other end of described connecting rod is articulated on the fitting seat of electric fan, and described reducing motor drives the fitting seat swing of electric fan by described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201361 CN203189293U (en) | 2013-04-19 | 2013-04-19 | Driving device of electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201361 CN203189293U (en) | 2013-04-19 | 2013-04-19 | Driving device of electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189293U true CN203189293U (en) | 2013-09-11 |
Family
ID=49106155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320201361 Expired - Lifetime CN203189293U (en) | 2013-04-19 | 2013-04-19 | Driving device of electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189293U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067127A (en) * | 2018-08-17 | 2018-12-21 | 张英华 | Shaftless flooring fan, shaftless smoke exhaust ventilator and shaftless fishes and shrimps pump |
| CN110043495A (en) * | 2019-05-09 | 2019-07-23 | 广东飞鹿电器有限公司 | A kind of industrial or commercial DC frequency-changing fan |
| CN114552861A (en) * | 2021-12-28 | 2022-05-27 | 助友工业科技(宁波)有限公司 | Direct current motor driven fan blade assembly and fan |
-
2013
- 2013-04-19 CN CN 201320201361 patent/CN203189293U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067127A (en) * | 2018-08-17 | 2018-12-21 | 张英华 | Shaftless flooring fan, shaftless smoke exhaust ventilator and shaftless fishes and shrimps pump |
| CN110043495A (en) * | 2019-05-09 | 2019-07-23 | 广东飞鹿电器有限公司 | A kind of industrial or commercial DC frequency-changing fan |
| CN110043495B (en) * | 2019-05-09 | 2024-01-30 | 广东飞鹿电器有限公司 | Industrial or commercial direct-current variable-frequency fan |
| CN114552861A (en) * | 2021-12-28 | 2022-05-27 | 助友工业科技(宁波)有限公司 | Direct current motor driven fan blade assembly and fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |