CN204538934U - A kind of minisize dc brushless motor - Google Patents
A kind of minisize dc brushless motor Download PDFInfo
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- CN204538934U CN204538934U CN201520268515.XU CN201520268515U CN204538934U CN 204538934 U CN204538934 U CN 204538934U CN 201520268515 U CN201520268515 U CN 201520268515U CN 204538934 U CN204538934 U CN 204538934U
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- drive circuit
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Abstract
The utility model discloses a kind of minisize dc brushless motor, be included on rotor and four permanent magnet poles are evenly set, stator evenly arranges 3 groups of magnetic pole of the stator, often organize the coil on two magnetic pole of the stator and connect, a controller U1 being set and connecting 3 drive circuits and the first hall device and the second hall device that become 120 ° of angles; 3 input pins of described controller U1 connect external control signal, determine the rotating speed speed of rotor 1, namely drive the determination of the first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63 driven length cycle time.The cost of the utility model drive circuit board is at about 5 yuans, and drive circuit plate bulk is very little, and the motor build after integral packaging is very little very well-balanced, and the utility model controls fine and smooth, runs smoothly submissive.
Description
Technical field
The utility model relates to motor, particularly relates to brushless motor, particularly minisize dc brushless motor.
Background technology
In prior art, many workplaces need minisize dc brushless motor to drive, such as model plane, robot, car mould etc.
Existing brushless motor volume is large, driver is expensive, and activation configuration is complicated.
Prior art has had the technology of many minisize dc brushless motors all to apply for patent; As applicant Dyson Ltd. of Britain apply for: 201180029875.9, name is called the Chinese utility model patent application of " control of brushless motor ", corresponding four rotor magnetic poles of four magnetic pole of the stator in its scheme, only only used the position that a hall device carrys out detection rotor, therefore, this technical scheme still seems coarse, runs unsmooth submissive.Especially this technical scheme compares in the micromotor being difficult to be used in than table tennis more small size.
Summary of the invention
The purpose of this utility model is the technology providing a kind of minisize dc brushless motor for the deficiencies in the prior art.Drive circuit board is attached on motor casing by the utility model, because the electric device volume on drive circuit board is very little, so drive circuit board also volume is very little, the motor build after integral packaging is very little very well-balanced.
The utility model is by realizing by the following technical solutions.
Manufacture and design a kind of minisize dc brushless motor, described minisize dc brushless motor comprises:
One rotor, rotor is evenly arranged four permanent magnet poles, and wherein two S poles are oppositely arranged, and two N poles are oppositely arranged;
One stator, it is evenly arranged 3 groups of magnetic pole of the stator, often organizes 2 and is oppositely arranged;
First group of first magnetic pole of the stator, first group of second magnetic pole of the stator;
Second group of first magnetic pole of the stator, second group of second magnetic pole of the stator;
3rd group of the first magnetic pole of the stator, the 3rd group of the second magnetic pole of the stator;
Often organize the coil on two magnetic pole of the stator and connect, often organizing the magnetic direction that magnetic pole of the stator responds to rotor after making to be energized identical, described first group of coil: A1 coil, A2 coil;
Second group of coil: B1 coil, B2 coil;
3rd group of coil: C1 coil, C2 coil; Driven by the first drive circuit, the second drive circuit, the 3rd drive circuit respectively;
At the gap location of magnetic pole of the stator, become 120 ° of angles that the first hall device h1 and the second hall device h2 is set;
One controller U1, connects 3 groups of drive circuits and the first hall device h1 and the second hall device h2.
Described first drive circuit, the second drive circuit, the 3rd drive circuit, when inducing " sky " magnetic field, are that controller U1 is to two of this drive circuit inputs output low levels; When exporting " S " magnetic field or " N " magnetic field, be that controller U1 exports one high and one low level to two of this drive circuit inputs.
An input pin of described controller U1 meets a forward-reverse switch K1, and this input pin described connects high level or connects low level, determines that rotor turns clockwise, is still rotated counterclockwise.3 input pins of described controller U1 connect external control signal, determine the rotating speed speed of rotor, namely drive the determination of the first drive circuit, the second drive circuit, the 3rd drive circuit driven length cycle time.
Described controller U1 uses STC15W408S microprocessor.
Compared with prior art, minisize dc brushless motor of the present utility model.The cost of drive circuit board is at about 5 yuans, and drive circuit plate bulk is very little, and the motor build after integral packaging is very little very well-balanced.
And the utility model controls fine and smooth, runs smoothly submissive.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the utility model below, but the embodiment in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is minisize dc brushless motor principle schematic of the present utility model.
Fig. 2 is the first sequential of rotating clockwise of minisize dc rotor of motor having no brush of the present utility model and the second sequential rotor-position, magnetic pole of the stator polarity schematic diagram.
Fig. 3 is the 3rd sequential that rotates clockwise of minisize dc rotor of motor having no brush of the present utility model and the 4th sequential rotor-position, magnetic pole of the stator polarity schematic diagram.
Fig. 4 is the 5th sequential that rotates clockwise of minisize dc rotor of motor having no brush of the present utility model and the 6th sequential rotor-position, magnetic pole of the stator polarity schematic diagram.
Fig. 5 is minisize dc brushless motor middle controller U1 of the present utility model, the first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63, first hall device h1 and the second hall device h2, first group of coil: A1 coil, A2 coil, second group of coil: B1 coil, B2 coil, the 3rd group of coil: the schematic diagram of C1 coil, C2 coil.
Embodiment
Below in conjunction with concrete execution mode, the utility model is described.
As shown in Fig. 1 ~ Fig. 5, a kind of preferred forms of minisize dc brushless motor, described minisize dc brushless motor comprises:
One rotor 1, rotor 1 is evenly arranged four permanent magnet poles, and wherein two S poles are oppositely arranged, and two N poles are oppositely arranged;
One stator, it is evenly arranged 3 groups of magnetic pole of the stator, often organizes 2 and is oppositely arranged;
First group of first magnetic pole of the stator, 11, first group of second magnetic pole of the stator 12;
Second group of first magnetic pole of the stator, 21, second group of second magnetic pole of the stator 22;
3rd group of first magnetic pole of the stator the 31, three group of second magnetic pole of the stator 32;
Often organize the coil on two magnetic pole of the stator and connect, often organizing the magnetic direction that magnetic pole of the stator responds to rotor 1 after making to be energized identical, described first group of coil: A1 coil, A2 coil;
Second group of coil: B1 coil, B2 coil;
3rd group of coil: C1 coil, C2 coil; Driven by the first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63 respectively;
At the gap location of magnetic pole of the stator, become 120 ° of angles that the first hall device h1 and the second hall device h2 is set;
One controller U1, connects 3 groups of drive circuits and the first hall device h1 and the second hall device h2.
Described first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63, when inducing " sky " magnetic field, are that controller U1 is to two of this drive circuit inputs output low levels; When exporting " S " magnetic field or " N " magnetic field, be that controller U1 exports one high and one low level to two of this drive circuit inputs.
An input pin of described controller U1 meets a forward-reverse switch K1, and this input pin described connects high level or connects low level, determines that rotor 1 turns clockwise, is still rotated counterclockwise.
3 input pins of described controller U1 connect external control signal, determine the rotating speed speed of rotor 1, namely drive the determination of the first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63 driven length cycle time.
Described controller U1 uses STC15W408S microprocessor.
As shown in Figure 1: due to 4 permanent magnet poles of rotor 1 and 6 magnetic pole of the stator respectively in 90 ° and 60 ° spaced apart, therefore there will not be rotor 1 to be inhaled dead phenomenon by stator, add again the monitoring of 120 ° of hall devices, so driving of the present utility model easily realizes.
In Fig. 1, " O " representative " sky " of magnetic pole of the stator, namely nonmagnetic.
As shown in Fig. 2, Fig. 5, our object is that rotor 1 is turned right, and when the first sequential, the base stage of Q1, Q4 of the first drive circuit 61 meets the P3.7 of controller U1, and the base stage of Q2, Q3 meets the P3.6 of controller U1, now P3.7=1, P3.6=0;
The base stage of Q5, Q8 of the second drive circuit 62 meets the P3.5 of controller U1, and the base stage of Q6, Q7 meets the P3.4 of controller U1, now P3.5=0, P3.4=0;
The base stage of Q9, Q12 of the 3rd drive circuit 63 meets the P3.3 of controller U1, and the base stage of Q10, Q11 meets the P3.2 of controller U1, now P3.3=0, P3.6=1.
I.e. " S, sky, N " as noted earlier.
When the second sequential shown in Fig. 2, P3.7=0, P3.6=1; P3.5=1, P3.4=0; P3.3=0, P3.6=0.
I.e. " N, S, sky " as noted earlier.
Operation principle of the present utility model is as follows:
First, arrange a rotor 1, rotor 1 is evenly arranged four permanent magnet poles, wherein two S poles are oppositely arranged, and two N poles are oppositely arranged;
Then 3 groups of magnetic pole of the stator are evenly set on stator, often organize 2 and be oppositely arranged; Often organize the coil on two magnetic pole of the stator and connect, the magnetic direction that magnetic pole of the stator responds to rotor 1 is often organized identical after making to be energized, described first group of coil: A1 coil, A2 coil, second group of coil: B1 coil, B2 coil, 3rd group of coil: C1 coil, C2 coil, is driven by the first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63 respectively;
Then at the gap location of magnetic pole of the stator, become 120 ° of angles that the first hall device h1 and the second hall device h2 is set;
Then, a controller U1 is set, connects 3 groups of drive circuits and the first hall device h1 and the second hall device h2;
After energising, as h1=0 and h2=1, controller U1 drives first group, second group, the 3rd group coil by " S, sky, N ", and rotor 1 clockwise direction rotates;
Then, as h1=1 and h2=0, controller U1 drives first group, second group, the 3rd group coil by " N, S, sky ", and rotor 1 clockwise direction rotates;
Then, as h1=1 and h2=1, controller U1 drives first group, second group, the 3rd group coil by " sky, N, S ", and rotor 1 clockwise direction rotates; After returning energising again, initial condition continues to drive, and rotor 1 turns clockwise.
Described first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63, when inducing " sky " magnetic field, are that controller U1 is to two of this drive circuit inputs output low levels; When exporting " S " magnetic field or " N " magnetic field, be that controller U1 exports one high and one low level to two of this drive circuit inputs.
An input pin of described controller U1 meets a forward-reverse switch K1, and this input pin described connects high level or connects low level, determines that rotor 1 turns clockwise, is still rotated counterclockwise;
When needing to be rotated counterclockwise, by K1 set, initial condition after powered up, as h1=0 and h2=1, controller U1 drives first group, second group, the 3rd group coil by " S, N, sky ", and rotor 1 counterclockwise rotates;
Then, as h1=1 and h2=0, controller U1 drives first group, second group, the 3rd group coil by " N, sky, S ", and rotor 1 counterclockwise rotates;
Then, as h1=1 and h2=1, controller U1 drives first group, second group, the 3rd group coil by " sky, S, N ", and rotor 1 counterclockwise rotates; Return the initial condition after energising again to continue to drive, rotor 1 is rotated counterclockwise.
3 input pins of described controller U1 connect external control signal, determine the rotating speed speed of rotor 1, namely drive the determination of the first drive circuit 61, second drive circuit 62, the 3rd drive circuit 63 driven length cycle time.
Because be micromotor, so Q1 ~ Q12 can select 9013, SMD is selected in encapsulation, and controller U1 selects QFN32 to encapsulate, 5mm 5mm.
When motor enter run up time, controller U1 no longer can read in the state of Hall element.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (5)
1. a minisize dc brushless motor, is characterized in that, described minisize dc brushless motor comprises:
One rotor (1), it is evenly arranged four permanent magnet poles, and wherein two S poles are oppositely arranged, and two N poles are oppositely arranged;
One stator, it is evenly arranged 3 groups of magnetic pole of the stator, often organizes 2 and is oppositely arranged;
First group of first magnetic pole of the stator (11), first group of second magnetic pole of the stator (12);
Second group of first magnetic pole of the stator (21), second group of second magnetic pole of the stator (22);
3rd group of the first magnetic pole of the stator (31), the 3rd group of the second magnetic pole of the stator (32);
Often organize the coil on two magnetic pole of the stator and connect, often organizing the magnetic direction that magnetic pole of the stator responds to rotor (1) after making to be energized identical, described first group of coil: A1 coil, A2 coil;
Second group of coil: B1 coil, B2 coil;
3rd group of coil: C1 coil, C2 coil; Driven by the first drive circuit (61), the second drive circuit (62), the 3rd drive circuit (63) respectively;
At the gap location of magnetic pole of the stator, become 120 ° of angles that the first hall device h1 and the second hall device h2 is set;
One controller U1, connects 3 groups of drive circuits and the first hall device h1 and the second hall device h2.
2. minisize dc brushless motor according to claim 1, is characterized in that:
Described first drive circuit (61), the second drive circuit (62), the 3rd drive circuit (63), when inducing " sky " magnetic field, are that controller U1 is to two of this drive circuit inputs output low levels; When exporting " S " magnetic field or " N " magnetic field, be that controller U1 exports one high and one low level to two of this drive circuit inputs.
3. minisize dc brushless motor according to claim 1, is characterized in that:
An input pin of described controller U1 meets a forward-reverse switch K1, and this input pin described connects high level or connects low level, determines that rotor (1) turns clockwise, is still rotated counterclockwise.
4. minisize dc brushless motor according to claim 1, is characterized in that,
3 input pins of described controller U1 connect external control signal, determine the rotating speed speed of rotor (1), namely drive the determination of the first drive circuit (61), the second drive circuit (62), the 3rd drive circuit (63) driven length cycle time.
5. minisize dc brushless motor according to claim 1, is characterized in that,
Described controller U1 uses STC15W408S microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268515.XU CN204538934U (en) | 2015-04-29 | 2015-04-29 | A kind of minisize dc brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268515.XU CN204538934U (en) | 2015-04-29 | 2015-04-29 | A kind of minisize dc brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538934U true CN204538934U (en) | 2015-08-05 |
Family
ID=53752892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520268515.XU Expired - Fee Related CN204538934U (en) | 2015-04-29 | 2015-04-29 | A kind of minisize dc brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538934U (en) |
-
2015
- 2015-04-29 CN CN201520268515.XU patent/CN204538934U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523932 Guangdong province Dongguan city Humen town gate five MINCHANG road two Lane 5 Patentee after: Guangdong Li Ding long Power Technology Co Ltd Address before: 523932 Guangdong province Dongguan city Humen town gate five MINCHANG road two Lane 5 Patentee before: Five metals plasthetics Co., Ltd of Dongguan City auspicious section |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20200429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |