CN1326255A - Brushless DC motor with radial windings and radial air gaps and its winding method - Google Patents
Brushless DC motor with radial windings and radial air gaps and its winding method Download PDFInfo
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- CN1326255A CN1326255A CN 00107915 CN00107915A CN1326255A CN 1326255 A CN1326255 A CN 1326255A CN 00107915 CN00107915 CN 00107915 CN 00107915 A CN00107915 A CN 00107915A CN 1326255 A CN1326255 A CN 1326255A
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Abstract
A brushless DC motor with radially wound winding and radial gaps has a stator compsed of radial stator seat and two conducting lines. Said radial stator seat has several electrode arms for winding said two conducting lines around them sequentially to form a stator. The terminals of said conducting lines are connected with control circuit. Its winding method features that two conducting lines are simultaneously wound on one electrode arm and them on its adjacent one in different direction, and so on.
Description
The present invention relates to a kind of DC Brushless Motor and method for winding thereof of tool radial windings and radial air gaps, refer in particular to and utilize two-conductor line to be wound in simultaneously to form stator and the method for winding thereof of its coil on the polar arm of radial stator seat to constitute a direct current brushless motor.
Fig. 1 is a traditional double group coil motor drive circuit schematic diagram.Comprise a Hall element 1 in this example; The motor driver 9 of an IC form, it receives the output of Hall element and provides a drive current to a motor 8, and motor 8 is promptly driven by IC motor driver 9.Twisted pair line circle DC Brushless Motor is generally used for fan motor 8 (hereinafter to be referred as motor 8), and what this motor 8 adopted usually is, the stator of d.c. motor is provided with the radial coil that can produce a rotating magnetic field, and its rotor is then formed by a permanent magnet.The rotatable phase of motor is decided in the Hall element 1 detecting magnetic field that permanent magnet produced.Motor driver 9 is provided with an amplifier 2 (hereinafter to be referred as AMP2), and a driving pulse produces circuit 3 and exports first and second drive circuits 4 and 5 that a drive current is given motor 8.Amplifier AMP2 is with the electric current amplification of Hall element 1 output and with its output.It is that 180 ° and load are 50% two driving pulse 4a and 5a (b among Fig. 2 and c) with the output signal shaping of amplifier AMP2 and phase difference output that driving pulse produces circuit 3.The driving pulse 4a that receives according to its input between the first driving pulse circuit, 4 its outside terminals 6 and the earth terminal, switch between conducting and not conducting, such first drive circuit 4 absorbs the drive current that is fed to motor by power line+Vcc by handover operation.Second drive circuit 5 is the function circuit identical with first drive circuit, and promptly the driving pulse 5a that receives according to its input between its outside terminal 7 and the earth connection switches between conducting and not conducting.
Further, first drive circuit 4 is made up of transistor Q11 and the Q12 that darlington connection connects, and the collector electrode of transistor Q11 is to be connected to outside terminal 6 in driving stage, and base stage is to receive driving pulse 4a.The collector electrode of transistor Q12 is to be connected to outside terminal 6 in output stage, and base stage is connected to the emitter of transistor Q11, and its emitter then is connected to earth connection.First drive circuit 4 also comprises a Zener diode 21, and its negative electrode is connected to outside terminal 6, and its anode then is connected to the base stage of transistor Q11.Similarly, second drive circuit 5 also is made up of transistor Q13 and the Q14 that darlington connection connects.The collector electrode of transistor Q13 is to be connected to outside terminal 7 in driving stage, and base stage is to receive driving pulse 5a.The collector electrode of transistor Q14 is to be connected to outside terminal 7 in output stage, and base stage is the emitter that is connected to transistor Q13, and its emitter then is connected to earth connection.Be similar to first drive circuit, 4, the second drive circuits 5 and also comprise a Zener diode Z2, its negative electrode is connected to outside terminal 7, and its anode then is connected to the base stage of transistor Q13.
Explain to have above-mentioned structure, the operation principle of conventional motor driver below in conjunction with the signal waveform among Fig. 2.
In order to determine the phase place of motor rotor, the output signal of Hall element 1 is exported to AMP2, and (driving pulse that a) outputs among Fig. 2 produces circuit 3 by the AMP2 amplifying signal.Driving pulse produces circuit 3 with the shaping of AMP2 output signal (for example with a logical circuit), revises its phase place, and produces two driving pulse 4a (b among Fig. 2) and 5a (c among Fig. 2), and 180 ° of the two phase differences and waveform are opposite.
Driving pulse 4a is a base stage of supplying with transistor Q11 in first drive circuit 4, and driving pulse 5a then supplies with the base stage of transistor Q13 in second drive circuit 5.In first drive circuit 4, as driving pulse 4a during at high potential (below be referred to as ON), transistor Q12 switches to ON, and conducting between outside terminal 6 and the earth connection (seeing the d among Fig. 2).As a result, the drive current of power supply+Vcc is fed to one group of coil 8a of single-phase motor 8 and flows to outside terminal 6.When driving pulse 4a during at electronegative potential (below be referred to as OFF) transistor Q12 switches to OFF, and between outside terminal 6 and the earth connection by (seeing the d among Fig. 2).As a result, the drive current among the coil 8a interrupts.Because the drive current circulation path disappears at this moment, the voltage that induction produces among the coil 8a is supplied with Zener diode Z1, and when voltage surpassed the puncture voltage of Zener diode, electric current was by Zener diode Z1 and in this place's dissipate energy.
The operation of second drive circuit 5 is similar to first drive circuit 4, except 180 ° of its input signal phase place and first drive circuit, 4 phase differences.When driving pulse 5a was ON, transistor Q14 switched to ON, and was conducting (seeing the e among Fig. 2) between outside terminal 7 and the earth connection.As a result, the drive current of power supply+Vcc is fed to another group coil 8b of single-phase motor 8 and flows to outside terminal 7.When driving pulse 5a was OFF, transistor Q14 switched to OFF, and between outside terminal 7 and the earth connection for by (seeing the e among Fig. 2), the result, the drive current among the coil 8b interrupts, and the current direction Zener diode z2 among the coil 8b and disperse at this place.
In sum, motor driver 9 produces two driving pulse 4a and 5a, and its phase difference is 180 °, and two coil 8a and the 8b of drive current to motor 8 alternately are provided, and motor rotor is rotated.
Please read shown in Figure 3ly again, it is the Brushless DC motor drive circuit figure of a single group coil, but also includes N, the S polarity of a hall sensing element 110 inductiopn rotor magnetic poles in this example, and the output pulse wave signal.When hall sensing element 110 is output as high potential (Hi), can trigger making 101,102,103 conductings (ON) of first group transistor, also conducting of transistor 104 (ON) simultaneously makes second group transistor 105,106,107 by (OFF), therefore, at the contact V of coil 108
1Form electronegative potential, contact V
2Form high potential, the electric current in the coil 108 is by contact V
2Flow to contact V
1.Otherwise when hall sensing element 110 was output as electronegative potential (LO), first group transistor 101,102,103 was by (OFF), and transistor 104 also ends simultaneously, then second group transistor 105,106,107 is triggered and conducting (ON), therefore, and at the contact V of coil 108
1Be high potential, contact V
2Be electronegative potential, the electric current in the coil 108 is by contact V
1Flow to contact V
2The position.So, interactive action again and again, the electric current that just can form mutual forward and reverse conduction in coil 108 passes through, and makes coil 108 produce alternating magnetic fields, with the CD-ROM drive motor rotor rotation.The above two kinds of drive circuit is respectively to be applicable to the general single group or the Brushless DC motor of twisted pair line circle.
Fig. 4 discloses the stator 100 that utilizes existing radial windings method to form.Fig. 5 discloses the radial windings method that lead 111 winds the line at the polar arm 112 of stator 100.Please refer to shown in the 4th and five figure, before 111 pairs of stators of lead 100 burnt line, these lead 111 1 ends formed one first contact V
1111 pairs of half polar arms 112 of lead of coiling wind the line and must pause when finishing on stator 100, form another contact V so that pull out lead 111
0(that is being total to contact) continues remaining half polar arm 112 is wound the line again.When all polar arms 112 were finished coiling, these lead 111 other ends formed the 3rd contact people V
2This lead 111 has three contacts in coiling on the stator 100 after finishing, so stator 100 can utilize the twisted pair line coil motor drive circuit shown in first figure, with the rotating magnetic field that produces alternation to drive the rotor 300 of tool N, S magnetic pole.Yet this above-mentioned existing radial windings method is because of need be pulled out the 3rd contact that is contact V altogether
0, thereby in the coiling process, must pause and can not once reel and finish.
Review shown in Fig. 6,7, it is the stator 100 that another existing radial windings mode forms, the method for winding that it can also lead 111 be radially reeled at the polar arm 112 of stator 100, before 111 pairs of stators of lead 100 were reeled, these lead 111 1 ends formed the first contact V
1, and behind the polar arm 112 of all stators 100 of having reeled, the other end of this lead 111 forms the second contact V
2And the stator 100 of finishing coiling of reeling can utilize single group coil motor drive circuit shown in Figure 3 to be created in positive and negative current lead-through on the single group coil, supply to drive the rotor 300 of tool N, S magnetic pole with the rotating magnetic field that produces alternation, this existing radial windings method is to wind the line with plain conductor, its must according to required coil turn on each polar arm 112 of stator 100 around on be equal to the number of turns of the number of turn.So if on the polar arm 112 of stator, reel required coil turn, unless accelerate outside the threading speed, otherwise the coiling time of impossible minimizing stator.But have at threading speed under the situation of certain limit, in fact also can't reduce the coiling time of stator.
Main purpose of the present invention provides a kind of DC Brushless Motor and method for winding thereof of tool radial windings and radial air gaps, it adopts two-conductor line to reel each magnetic pole arm of stator simultaneously to form coil, therefore the be pulled process of contact that can not need winding the line pauses, and the coiling time also can reduce 1/2, makes it have the effect that increases stator winding efficient.
Secondary objective of the present invention provides a kind of DC Brushless Motor and method for winding thereof of tool radial windings and radial air gaps, it adopts two-conductor line method for winding simultaneously, therefore can determine to be pulled out two contacts or three contacts again after stator winding is finished, the stator that coiling is finished can be common to the Brushless DC motor of single group or twisted pair line circle.
Another purpose of the present invention, provide a kind of DC Brushless Motor and method for winding thereof of tool radial windings and radial air gaps, it adopts two-conductor line method for winding simultaneously, when therefore winding the line, the suffered pulling force of lead is to be divided equally by two leads, therefore lead is difficult for breaking when reeling, and then improves the efficient of stator winding.
The present invention is in order to improve the shortcoming of prior art, and the method that mainly adopts two-conductor line to reel simultaneously forms the coil of stator, and it needs the coiling of the required coil turn of coiling 1/2 can reach the stator coil of required coil turn, to increase stator winding efficient.Moreover, because the present invention adopts two-conductor line method for winding simultaneously, on the one hand after stator winding forms coil, two leads, one end is connected to form a contact, pull out the process of contact to substitute to pause in traditional coiling process, pick out the stator coil of three contacts with required the drawing of the Brushless DC motor of finishing the twisted pair line circle.Or reel simultaneously after stator finishes coiling at two leads, again with two leads, one end serial connection, and the other end of two leads respectively forms a contact, picks out the stator coil of two contacts with required the drawing of the Brushless DC motor that reaches single group coil.Therefore, the present invention can determine to be pulled out two contacts or three contacts again after stator coil is finished coiling, to be applicable to the Brushless DC motor of single group coil or twisted pair line circle, it not only reduces the time of stator winding, and the stator after coiling is finished more can cooperate different as previously mentioned drive circuits, uses for different motors.Two leads among the present invention are leads of different colours.
According to the DC Brushless Motor and the method for winding thereof of tool radial windings and radial air gaps of the present invention, this motor mainly comprises the lead of a radial stator seat and two different colours.This radial stator seat is provided with several polar arms for Wire-wound.This two lead then simultaneously on each polar arm in regular turn continuous reeling form coil constituting stator, and the line end of this lead forms the contact of coil groups for being connected in control Driver Circuit.Like this because of there not being the pause in the coiling process, and reduce winding turns, improved stator winding efficient.Simultaneously, the stator after coiling is finished can cooperate different drive circuits, uses for different motors.
Description of drawings of the present invention is as follows:
Fig. 1 is the drive circuit figure of existing twisted pair line circle Brushless DC motor;
Fig. 2 is for explaining the synchronization waveform of the existing twisted pair line circle Brushless DC motor circuit operation of the 1st figure;
Fig. 3 is the drive circuit figure of the Brushless DC motor of existing single group coil;
Fig. 4 is four pole brushless DC motor structure schematic diagrames of existing radial windings twisted pair line circle;
Fig. 5 is the method for winding stator schematic diagram of four pole brushless DC motors of existing radial windings twisted pair line circle
Fig. 6 is existing radial windings single group coil four pole brushless DC motor structure schematic diagrames;
Fig. 7 is the method for winding stator schematic diagram of existing radial windings single group coil four pole brushless DC motors;
Fig. 8 is the motor structure schematic diagram of the present invention's first preferred embodiment;
Fig. 9 is the method for winding stator schematic diagram of the present invention's first preferred embodiment;
Figure 10 is the motor structure schematic diagram of the present invention's second preferred embodiment;
Figure 11 is the method for winding stator schematic diagram of the present invention's second preferred embodiment.
Among the figure:
1 Hall element, 2 amplifiers
3 driving pulses produce circuit 4 first drive circuits
5 second drive circuits, 6 terminals
7 terminals, 8 motors
9 motor drivers, 100 stators
101～107 transistors
108 coils, 110 hall sensing elements
11 leads, 112 polar arms
200 stator seats, 201 polar arms
202 coils
210 first leads, 211 line ends
212 line ends
220 second leads, 221 line ends
222 line ends
300 rotors
Below in order to allow the clearer and more definite quilt of the present invention understand, will be especially exemplified by preferred embodiment of the present invention, and in conjunction with its accompanying drawing, elaborate.
Please refer to shown in Figure 8ly, it is the motor structure schematic diagram of the present invention's first preferred embodiment.This motor mainly comprises the rotor 300 of the radial stator seat 200 of four polar arms 201 of a tool and tool N, S magnetic pole, and these four polar arms 201 can be reeled for lead 210,220 and be formed coil 202 to finish stator structure.This coil 202 can cooperate aforesaid drive circuit, becomes rotor 300 rotations of alternating magnetic field confession driving tool N, S magnetic pole in the radial shape of each polar arm 201.Coil 202 of the present invention is to be reeled simultaneously by one first lead 210 (solid line) and one second lead 220 (dotted line) to form, and only need the reel coiling of 1/2 required coil turn of this method for winding promptly can be reached the stator coil 202 of required coil turn.And stator seat 200 of the present invention can determine to pull out two contacts or three contacts after coiling forms stator again, to be connected in control Driver Circuit (foregoing existing control Driver Circuit).If three contacts that need be pulled, then with first lead, 210 1 ends 211 as the first contact V
1, the other end 212 of first lead 210 and second lead, 220 1 ends, 221 serial connections form another contact V
0, pull out the process of contact to substitute to pause in traditional coiling process, and second lead, 220 other ends 222 are the 3rd contact V
2Therefore the present invention pulls out the process of contact with first lead, 210 1 ends and second lead, 220 1 ends serial connection to substitute to pause in traditional coiling process, and finish the stator structure of three contacts that are pulled out, this stator structure is to cooperate drive circuit to use for the Brushless DC motor of twisted pair line circle.
Moreover, if stator seat 200 is pulled out two contacts then only to be needed first lead, one end 211 and second lead, one end, 221 serial connections, and the first lead other end 212 and the second lead other end 222 respectively form contact, to finish the stator structure of two contacts that are pulled, owing to determine again to pull out two contacts or three contacts after stator seat 200 coilings of the present invention are finished, make it have the function of simplifying the coiling process.
Referring again to shown in Figure 9, it is with the four very routine schematic diagrames that disclose preferred embodiment method of winding stator of the present invention.As Fig. 8, and it is shown in Figure 9, preferred embodiment method of winding stator of the present invention mainly is on a polar arm 201a of stator seat 200, carrying out clockwise direction with first lead 210 and second lead 220 simultaneously reels, then reel to carrying out counter clockwise direction on the adjacency polar arm 201b again, reel to carrying out clockwise direction on the adjacency polar arm 201c again, reel to carrying out counter clockwise direction on the adjacency polar arm 201d more at last, that is with two leads 210,220 whiles are the coil of continuous reeling formation in regular turn on each polar arm 201, and adjacent polar arm is reeled in the opposite direction, does not need to pause in its coiling process to pull out the process of contact.Because the present invention can determine to pull out two contacts or three contacts again after the formation stator is finished in stator seat 200 coilings, to be applicable to single group coil motor or twisted pair line coil motor, and do not need to interrupt being pulled contact in carrying out the coiling process, the time of winding the line can reduce 1/2 again.Moreover the present invention is that two leads are reeled simultaneously, and therefore lead generation broken string problem can reduce in the coiling process.
Please read shown in Figure 10,11 again, it is the motor structure schematic diagram and the method for winding stator schematic diagram of another preferred embodiment of the present invention, with first lead 210 and second lead 220 reel in a clockwise direction simultaneously polar arm 201a and polar arm 201c, then again with polar arm 201b, the 201d of counterclockwise reeling, that is be wound in simultaneously on each polar arm with two leads 210,220, and after being wound in each non-conterminous polar arm with same direction earlier, all the other polar arms of reeling in the opposite direction again, identical, do not need to pause in this coiling process and pull out the process of contact.
Claims (11)
1, a kind of DC Brushless Motor of tool radial windings and radial air gaps comprises: a radial stator seat, and it has the even number polar arm; One first lead, it comprises two line ends; One second lead, it comprises two line ends, it is characterized in that: this first lead and second lead simultaneously on the polar arm of this radial stator seat in regular turn continuous reeling form coil groups and draw contact; The contact that the line end of this first lead and second lead forms is connected in control Driver Circuit.
2, the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 1, it is characterized in that: first lead and second lead are to be wound in simultaneously on each polar arm, and with an end of first lead as a contact, the other end of first lead is connected in series with an end of second lead and forms another contact, the other end of second lead then forms the 3rd contact, be pulled out the stator coil of three contacts of formation.
3, the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 1, it is characterized in that: first lead and second lead are to be wound in simultaneously on each polar arm, and first lead, one end is connected in series with second lead, one end, and the first lead other end and the second lead other end respectively form contact, to form the stator coil of two contacts that can be pulled out.
4, the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 1 is characterized in that: first lead and the second lead appearance are different colours.
5, a kind of method for winding of DC Brushless Motor of tool radial windings and radial air gaps, it is characterized in that: it is to use two one of them polar arms of Wire-wound on the stator seat with even number polar arm simultaneously, then again with opposite coiling direction another adjacent polar arm of reeling, like this in the reverse each other mode of the coiling of each adjacent polar arm, in regular turn and be continuously winding on each polar arm with its coiling.
6, the method for winding of the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 5, it is characterized in that: after two leads have been reeled all polar arms simultaneously, with an end of the lead in two leads as a contact, and the other end of this lead is connected in series with an end of another lead and forms another contact, the other end of this another lead then forms the 3rd contact, be pulled out the stator coil of three contacts of formation.
7, the method for winding of the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 5, it is characterized in that: after two leads have been reeled all polar arms simultaneously, one end of the lead in two leads is connected in series formation one contact with an end of another lead, and the other end of these two leads is connected in series another contact of formation mutually, thereby forms the stator coil of two contacts that can be pulled out.
8, a kind of method for winding of DC Brushless Motor of tool radial windings and radial air gaps, it is characterized in that: on stator seat with even number polar arm simultaneously with two Wire-wounds arm wherein, be wound in each non-conterminous polar arm with same direction of winding again, then in the opposite direction coiling be wound in all the other polar arms again.
9, the method for winding of the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 8, it is characterized in that: after two leads have been reeled all polar arms simultaneously, with an end of the lead in two leads as a contact, and the other end of this lead is connected in series with an end of another lead and forms another contact, the other end of this another lead then forms the 3rd contact, be pulled out the stator coil of three contacts of formation.
10, the method for winding of the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 8, it is characterized in that: after two leads have been reeled all polar arms simultaneously, one end of the lead in two leads is connected in series formation one contact with an end of another lead, and the other end of these two leads is connected in series another contact of formation mutually, thereby forms the stator coil of two contacts that can be pulled out.
11, the DC Brushless Motor of the described tool radial windings and radial air gaps of claim 1 is characterized in that: do not have the contact of pulling out after coiling pauses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00107915 CN1326255A (en) | 2000-05-25 | 2000-05-25 | Brushless DC motor with radial windings and radial air gaps and its winding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00107915 CN1326255A (en) | 2000-05-25 | 2000-05-25 | Brushless DC motor with radial windings and radial air gaps and its winding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1326255A true CN1326255A (en) | 2001-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00107915 Pending CN1326255A (en) | 2000-05-25 | 2000-05-25 | Brushless DC motor with radial windings and radial air gaps and its winding method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423416C (en) * | 2005-08-10 | 2008-10-01 | 台达电子工业股份有限公司 | Single-phase motor and its stator winding and tie lines method |
| TWI676345B (en) * | 2018-07-10 | 2019-11-01 | 建準電機工業股份有限公司 | Single phase motor |
-
2000
- 2000-05-25 CN CN 00107915 patent/CN1326255A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423416C (en) * | 2005-08-10 | 2008-10-01 | 台达电子工业股份有限公司 | Single-phase motor and its stator winding and tie lines method |
| TWI676345B (en) * | 2018-07-10 | 2019-11-01 | 建準電機工業股份有限公司 | Single phase motor |
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