CN100471013C - Parallel type two-phase full wave brushless DC motor - Google Patents
Parallel type two-phase full wave brushless DC motor Download PDFInfo
- Publication number
- CN100471013C CN100471013C CNB2004100583463A CN200410058346A CN100471013C CN 100471013 C CN100471013 C CN 100471013C CN B2004100583463 A CNB2004100583463 A CN B2004100583463A CN 200410058346 A CN200410058346 A CN 200410058346A CN 100471013 C CN100471013 C CN 100471013C
- Authority
- CN
- China
- Prior art keywords
- coil
- induction
- driving component
- sensing element
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The parallel diphase full-wave brushless DC motor comprises a first and second drive element, a first and second induction element, and a first and second coil; wherein, the first drive element connects to the first induction element and coil, and controls the first current conducting direction of first coil by Hall signal from first induction element to make first coil generate full-wave excitation; so does the second drive element to induction element and coil; the first drive element parallels with the second drive element to parallel the first and second coil for synchronous excitation. Thereby, this invention can increase motor rated power, has little volume and low cost.
Description
Technical field
The present invention relates to a kind of parallel double-phase full wave brushless DC, refer in particular to a kind of Brushless DC motor that utilizes two induction-driving component [two sensor/drive members] control one parallel two-phase all-waves.
Background technology
Please refer to shown in Figure 1ly, it discloses the circuit diagram of known single-phase full wave Brushless DC motor.This single-phase full wave Brushless DC motor has a single-phase full wave drive circuit 10, and this single-phase full wave drive circuit 10 comprises a driving element 11, a sensing element 12 and a coil 13.This driving element 11 is electrically connected to this sensing element 12 and coil 13, and the Hall signal of this sensing element 12 of its mat is controlled the current lead-through direction of this coil 13.So this coil 13 forms on two conducting directions, and all-wave is excitatory rotates to drive a rotor.
Yet the rated power/electric current of this driving element 11 [rated power/current] is also non-linear with the rate of change of volume.In other words, when the rated power of this driving element 11 doubled, the volume of this driving element 11 doubled above.So, when improving the rated power of this driving element 11, this driving element 11 promptly has the shortcoming that takies excessive motor inner space.
In addition, the manufacturing cost of big specified power drive element is quite high, and it surpasses the manufacturing cost of two small rated power drive elements, and therefore this big specified power drive element has the shortcoming that increases manufacturing cost.
In order to save motor inner space and manufacturing cost, when needs increase the rated power of this driving element 11, need set up another small rated power drive element, just finish the rated power that improves this driving element 11, and reduce manufacturing cost.Simultaneously, the single-phase full wave coil is divided into two-phase all-wave coil so that be applicable to the driving of two driving elements.During fabrication, because the volume of this two-phase all-wave coil is identical with the volume of single-phase full wave coil, so this two-phase all-wave coil can not increase the motor volume.
In view of this, the inventor improves the shortcoming of above-mentioned known technology, proposes a kind of parallel double-phase full wave brushless DC of the present invention.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of parallel double-phase full wave brushless DC is provided, and it utilizes two driving elements to control the coil of parallel two-phase all-wave, makes the present invention have the effect that promotes motor rated power.
Another technical problem that the present invention will solve is: a kind of parallel double-phase full wave brushless DC is provided, it utilizes two driving elements to control the coil of parallel two-phase all-wave, because this driving element has the little and low-cost characteristic of volume, make the present invention have the effect of saving motor inner space and reduction motor manufacturing cost.
The another technical problem that the present invention will solve is: provide a kind of parallel double-phase full wave brushless DC its have the coil of parallel two-phase all-wave, when a single-phase full wave coil opens circuit, another single-phase full wave coil continues excitatory, the effect that the present invention is had avoid motor running to interrupt.
For this reason, the invention provides a kind of parallel double-phase full wave brushless DC, it comprises:
One rotor, it has at least one group of N.S magnetic pole; One stator, it is provided with the magnetic pole of at least one group of magnetic pole corresponding to this rotor; One first coil, it is wound on this stator; One second coil, it is wound on this stator; One first sensing element, it is in order to detect the magnetic pole of this rotor, so that produce one first Hall signal; One second sensing element, it is in order to detect the magnetic pole of this rotor, so that produce one second Hall signal; One first driving element, it is connected to power supply, and it is connected to this first coil and first sensing element again, and the first current lead-through direction that this first driving element is controlled this first coil according to the first Hall signal of this first sensing element is excitatory so that produce all-wave; And one second driving element, it is connected to power supply, and it is connected to this second coil and second sensing element again, and the second current lead-through direction that this second driving element is controlled this second coil according to the second Hall signal of this second sensing element is excitatory so that produce all-wave;
Wherein the combination of the combination of this first sensing element, first driving element and first coil and this second sensing element, second driving element and second coil is parallel with one another, and have phase difference between this two magnetic pole that this first sensing element and second sensing element are detected is 90 ° and 270 °, and it is excitatory that first electric current of this first coil and second electric current of second coil carry out synchronous all-wave, to drive this rotor rotation.
The present invention also provides another kind of parallel double-phase full wave brushless DC, and it comprises:
One rotor, it has at least one group of N.S magnetic pole; One stator, it is provided with the magnetic pole of at least one group of magnetic pole corresponding to this rotor; One first coil, it is wound on this stator; One second coil, it is wound on this stator; One first induction-driving component, it is connected to power supply, it is connected to this first coil again, and the magnetic pole that this first induction-driving component detects this rotor is producing one first Hall signal, and this first induction-driving component is according to one first electric current of this first Hall signal control by this first coil; And one second induction-driving component, its this first induction-driving component in parallel, it is connected to this power supply and second coil again, the magnetic pole that this second induction-driving component detects this rotor is producing one second Hall signal, and this second induction-driving component is according to one second electric current of this second Hall signal control by this second coil;
Wherein the combination of the combination of this first induction-driving component and first coil and this second induction-driving component and second coil is parallel with one another, and have phase difference between this two magnetic pole that this first induction-driving component and second induction-driving component are detected is 90 ° and 270 °, and this first induction-driving component and the synchronous start of second induction-driving component, it is excitatory to make second electric current of first electric current of this first coil and second coil carry out synchronous all-wave, to drive this rotor rotation.
According to parallel double-phase full wave brushless DC of the present invention, this Brushless DC motor comprises one first driving element, one second driving element, one first sensing element, one second sensing element, one first coil and one second coil.This first driving element is connected to this first sensing element and first coil, and its Hall signal according to this first sensing element is controlled the first current lead-through direction of this first coil, and it is excitatory to make this first coil produce all-wave.Simultaneously, this second driving element is connected to this second sensing element and second coil, and its Hall signal according to this second sensing element is controlled the second current lead-through direction of this second coil, and it is excitatory to make this second coil produce all-wave.This first driving element is connected in parallel to this second driving element, makes this first coils from parallel connection of coils be connected to this second coil, so that carry out excitatory synchronously.By this, the present invention utilizes the sensing element of two small rated power or induction-driving component to control parallel two-phase all-wave coil, that is substitute the coil of big rated power sensing element and single-phase full wave with double small rated power driving element and parallel two-phase all-wave coil, because this small rated power drive element has the little and low-cost characteristic of volume, it has the motor of lifting rated power, saves the motor inner space and reduces motor manufacturing cost effect, and can expand the number of small rated power drive element with demand, the upper limit of this number can not be more than the number of poles of motor.
Description of drawings
Fig. 1 is the circuit diagram of known single-phase full wave Brushless DC motor.
Fig. 2 is the circuit diagram of the present invention's first preferred embodiment parallel double-phase full wave brushless DC.
Fig. 3 is the cutaway view of the present invention's first preferred embodiment parallel double-phase full wave brushless DC.
Fig. 4 is the circuit diagram of the present invention's second preferred embodiment parallel double-phase full wave brushless DC.
Fig. 5 is the circuit diagram of the present invention's the 3rd preferred embodiment parallel double-phase full wave brushless DC.
Fig. 6 is the circuit diagram of the present invention's the 4th preferred embodiment parallel double-phase full wave brushless DC.
The drawing reference numeral explanation:
10, single-phase full wave drive circuit 11, driving element 12, sensing element
13, coil 2, parallel double-phase full wave brushless DC
2a, stator 2b, circuit board 2c, rotor
20, parallel two-phase all-wave drive circuit 21, the first driving element 21a, second driving element
211, the first induction-driving component 211a, second induction-driving component 212, first driving element
212a, second driving element 213, the first induction-driving component 213a, second induction-driving component
22, the first sensing element 22a, second sensing element 23, first coil
23a, second coil
Embodiment
In order further to understand technical scheme of the present invention, feature and advantage, hereinafter will be especially exemplified by preferred embodiment of the present invention, and conjunction with figs., elaborate.
Fig. 2 discloses the circuit diagram of the present invention's first preferred embodiment parallel double-phase full wave brushless DC.Fig. 3 discloses the cutaway view of the present invention's first preferred embodiment parallel double-phase full wave brushless DC.
Please refer to Fig. 2 and shown in Figure 3, preferred embodiment parallel double-phase full wave brushless DC 2 of the present invention has a parallel two-phase all-wave drive circuit 20.This parallel two-phase all-wave drive circuit 20 comprises one first driving element 21, one second driving element 21a, one first sensing element 22, the second sensing element 22a, one first coil 23 and one second coil 23a.
Referring again to shown in Figure 2, this first driving element 21 and the second driving element 21a be preferable to have identical rated power.This first coil 23, the K second coil 23a is preferable to have identical impedance.
Referring again to shown in Figure 3, this parallel double-phase full wave brushless DC 2 comprises a stator 2a, a circuit board 2b and a rotor 2c.This stator 2a is for this first and second coil 23.g
-23a twines jointly and forms a pair of phase coil group.This circuit board 2b is provided with this parallel two-phase all-wave drive circuit 20, and in order to carry this first driving element 21, the second driving element 21a, the first sensing element 22-%, the second sensing element 22a, make the corresponding magnetic pole that detects this rotor 2c of this first sensing element 22 and the second sensing element 22a, to export the Hall signal respectively to this first driving element 21 and the second driving element 21a.
Referring again to shown in Figure 3, on circuit board 2b, first sensing element 22 and the second sensing element 22a select diverse location is set, so the magnetic pole of its corresponding detection rotor 2c has 0 ° of phase difference, 90 °, 180 ° and 270 °.
Referring again to shown in Figure 2, the phase difference of the detection rotor 2c magnetic pole of this first sensing element 22 and the second sensing element 22a is 0 ° and 180 °.Two pin OUT1 of this first driving element 21 and the configuration of OUT2 are corresponding to the two pin OUT1 of this second drive circuit 21a and the configuration of OUT2, to control the current lead-through direction unanimity of this first coil 23 and the second coil 23a, make this first coil 23 and the second coil 23a have identical excitatory direction to drive this rotor 2c.
Referring again to shown in Figure 2, this first and second driving element 21 and 21a are connected to power supply vcc jointly.This first driving element 21 is connected to this first sensing element 22 and first coil 23, and its Hall signal according to this first sensing element 22 is controlled the current lead-through direction of this first coil 23, and it is excitatory to make this first coil 23 produce all-wave.Simultaneously, this second driving element 21a is connected to this second sensing element 22a and the second coil 23a, and it controls the limit current lead-through direction of 23a of this second line according to Hall signal of this second sensing element 22a, and it is excitatory to make this second coil 23a produce all-wave.This first driving element 21 is connected in parallel to this first driving element 21a, makes this first coil 23 be connected in parallel to this second coil 23a, so that carry out excitatory synchronously.
When revolution, this first and second sensing element 22 and 22a common sense detect the same pole (the N utmost point or the S utmost point) of this rotor 2c.By this, this first and second driving element 21 and 21a determine this first and second coil 23 and 23a electric current alternate conduction direction, make this first coil 23 and the second coil 23a form alternate conduction.
When this first coil 23 when this first driving element 21 carries out first electric current I, 1 alternate conduction, this second coil 23a carries out second electric current I, 2 alternate conduction through this second driving element 21a synchronously.Even if when one of this first coil 23 or second coil 23a can't carry out the conducting electric current, this parallel two-phase all-wave drive circuit 20 still keeps this second coil 23a or first coil 23 continues to carry out the electric current alternate conduction, interrupt to avoid motor running.
When this first and second coil 23 and 23a synchronously when this first and second driving element 21 and 21a carry out electric current I 1 and I2 alternate conduction, this parallel two-way all-wave drive circuit 20 has two electric current I 1 and I2 carries out alternate conduction at this first and second coil 23 and 23a respectively, so can promote motor rated power.For example the rated power of single-phase full wave Brushless DC motor is that 500mW, rated current are 700mA, and it is that 1000mW, lifting rated current are 1400mA that double-phase full wave brushless DC motor of the present invention then promotes rated power.
Referring again to Figure 1 and Figure 2, when promoting motor rated power, known single-phase full wave Brushless DC motor has the shortcoming that increases volume and increase manufacturing cost.Review, parallel double-phase full wave brushless DC of the present invention is provided with a driving element 21a more, so has the effect of saving the motor inner space and reducing manufacturing cost.
Fig. 4 discloses the circuit diagram of the present invention's second preferred embodiment parallel double-phase full wave brushless DC.
Please refer to shown in Figure 4, the corresponding first preferred embodiment parallel double-phase full wave brushless DC that is arranged at of the present invention's second preferred embodiment parallel double-phase full wave brushless DC, thereby adopt the same reference numbers group to indicate at the element same section, to be convenient to understand difference between each preferred embodiment of the present invention.The part technology contents of second preferred embodiment has been disclosed in the first preferred embodiment description, incorporates reference in this, will not give unnecessary details in detail.
Referring again to shown in Figure 4, the parallel two-phase all-wave of the present invention's second preferred embodiment drive circuit 20 comprises one first induction-driving component 211, one second induction-driving component 211a, one first coil 23 and one second coil 23a.
Compared to the present invention's first preferred embodiment, the induction-driving component 211 of the present invention's second preferred embodiment and 211a incorporate a sensing element into a driving element and form.
Fig. 5 discloses the circuit diagram of the present invention's the 3rd preferred embodiment parallel double-phase full wave brushless DC.
Please refer to shown in Figure 5, the parallel two-phase all-wave of the present invention's the 3rd preferred embodiment brushless direct-current horse: reach the corresponding first preferred embodiment parallel double-phase full wave brushless DC that is arranged at, thereby adopt the same reference numbers group to indicate at the element same section, to be convenient to understand difference between all preferred embodiments of the present invention.The part technology contents of the 3rd preferred embodiment has been disclosed in the first preferred embodiment description, incorporates reference in this, will not give unnecessary details in detail.
Referring again to shown in Figure 5, the phase difference of first sensing element 22 of the present invention's the 3rd preferred embodiment and the detection rotor 2c magnetic pole of the second sensing element 22a is 90 ° or 270 °.Compared to the present invention's first preferred embodiment, second driving element 212a of the present invention's the 3rd preferred embodiment and the annexation of the second coil 23a are in contrast to the annexation of this first driving element 212 and first coil 23.That is the configuration of two pin OUT1 of this first driving element 212 and OUT2 is in contrast to the two pin OUT1 of this second driving element 212a and the configuration of OUT2, opposite with the current lead-through direction of controlling this first coil 23 and the second coil 23a, make this first coil 23 and the second coil 23a have opposite excitatory direction to drive this rotor 2c.
Fig. 6 discloses the circuit diagram of the present invention's the 4th preferred embodiment parallel double-phase full wave brushless DC.
Please refer to shown in Figure 6, the present invention's the 4th preferred embodiment parallel double-phase full wave brushless DC order correspondence is arranged at the first preferred embodiment parallel double-phase full wave brushless DC, thereby adopt the same reference numbers group to indicate at the element same section, to be convenient to understand the differences of opinion preferred embodiment of the present invention.The part technology contents of the 4th preferred embodiment has been disclosed in the first preferred embodiment description, incorporates reference in this, will not give unnecessary details in detail.
Referring again to shown in Figure 6, the parallel two-phase all-wave drive circuit 20 of the present invention's the 4th preferred embodiment comprises one first induction-driving component 213, one second induction-driving component 213a, one first coil 23 and one second coil 23a.
Compared to the present invention's the 3rd preferred embodiment, the induction-driving component 213 of the present invention's the 4th preferred embodiment and 213a incorporate a sensing element into a driving element and form.
Though the present invention discloses with aforementioned preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing various changes and modification, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.
Claims (6)
1, a kind of parallel double-phase full wave brushless DC is characterized in that, comprises:
One rotor, it has at least one group of N.S magnetic pole;
One stator, it is provided with the magnetic pole of at least one group of magnetic pole corresponding to this rotor:
One first coil, it is wound on this stator;
One second coil, it is wound on this stator;
One first sensing element, it is in order to detect the magnetic pole of this rotor, so that produce one first Hall signal;
One second sensing element, it is in order to detect the magnetic pole of this rotor, so that produce one second Hall signal;
One first driving element, it is connected to power supply, and it is connected to this first coil and first sensing element again,
The first current lead-through direction that this first driving element is controlled this first coil according to the first Hall signal of this first sensing element is excitatory so that produce all-wave; And
One second driving element, it is connected to power supply, and it is connected to this second coil and second sensing element again, and the second current lead-through direction that this second driving element is controlled this second coil according to the second Hall signal of this second sensing element is excitatory so that produce all-wave;
Wherein the combination of the combination of this first sensing element, first driving element and first coil and this second sensing element, second driving element and second coil is parallel with one another, and have phase difference between this two magnetic pole that this first sensing element and second sensing element are detected is 90 ° and 270 °, and it is excitatory that first electric current of this first coil and second electric current of second coil carry out synchronous all-wave, to drive this rotor rotation.
2, parallel double-phase full wave brushless DC as claimed in claim 1 is characterized in that, a circuit board is established in this stator below, and this first and second sensing element is installed on this circuit board.
3, parallel double-phase full wave brushless DC as claimed in claim 1, it is characterized in that, the current lead-through direction that this first driving element and second driving element are controlled this first coil and second coil is opposite, makes this first coil and second coil have opposite excitatory direction.
4, a kind of parallel double-phase full wave brushless DC is characterized in that, comprises:
One rotor, it has at least one group of N.S magnetic pole;
One stator, it is provided with the magnetic pole of at least one group of magnetic pole corresponding to this rotor;
One first coil, it is wound on this stator;
One second coil, it is wound on this stator;
One first induction-driving component, it is connected to power supply, it is connected to this first coil again, and the magnetic pole that this first induction-driving component detects this rotor is producing one first Hall signal, and this first induction-driving component is according to one first electric current of this first Hall signal control by this first coil; And
One second induction-driving component, its this first induction-driving component in parallel, it is connected to this power supply again and reaches
The magnetic pole that second coil, this second induction-driving component detect this rotor is producing one second Hall signal, and this second induction-driving component is according to one second electric current of this second Hall signal control by this second coil;
Wherein the combination of the combination of this first induction-driving component and first coil and this second induction-driving component and second coil is parallel with one another, and have phase difference between this two magnetic pole that this first induction-driving component and second induction-driving component are detected is 90 ° and 270 °, and this first induction-driving component and the synchronous start of second induction-driving component, it is excitatory to make second electric current of first electric current of this first coil and second coil carry out synchronous all-wave, to drive this rotor rotation.
5, parallel double-phase full wave brushless DC as claimed in claim 4 is characterized in that, a circuit board is established in this stator below, and this first and second induction-driving component is installed on this circuit board.
6, parallel double-phase full wave brushless DC as claimed in claim 4, it is characterized in that, the current lead-through direction that this first induction-driving component and second induction-driving component are controlled this first coil and second coil is opposite, makes this first coil and second coil have opposite excitatory direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583463A CN100471013C (en) | 2004-08-10 | 2004-08-10 | Parallel type two-phase full wave brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583463A CN100471013C (en) | 2004-08-10 | 2004-08-10 | Parallel type two-phase full wave brushless DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1734896A CN1734896A (en) | 2006-02-15 |
| CN100471013C true CN100471013C (en) | 2009-03-18 |
Family
ID=36077145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100583463A Expired - Fee Related CN100471013C (en) | 2004-08-10 | 2004-08-10 | Parallel type two-phase full wave brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100471013C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114073A (en) * | 1976-11-19 | 1978-09-12 | Sony Corporation | Brushless motor driving circuit |
| US4412159A (en) * | 1980-02-29 | 1983-10-25 | Sony Corporation | Drive circuit for an alternate phase brushless DC motor |
| US5939807A (en) * | 1997-12-16 | 1999-08-17 | Reliance Electric Industrial Company | Cap mounted drive for a brushless DC motor |
| CN2393259Y (en) * | 1999-11-11 | 2000-08-23 | 华戈扬 | Double-phase driven double-winding dc. brushless electric motor |
| CN1281284A (en) * | 1999-07-02 | 2001-01-24 | 建准电机工业股份有限公司 | Electric motor with improved locating structure of rotor |
-
2004
- 2004-08-10 CN CNB2004100583463A patent/CN100471013C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114073A (en) * | 1976-11-19 | 1978-09-12 | Sony Corporation | Brushless motor driving circuit |
| US4412159A (en) * | 1980-02-29 | 1983-10-25 | Sony Corporation | Drive circuit for an alternate phase brushless DC motor |
| US5939807A (en) * | 1997-12-16 | 1999-08-17 | Reliance Electric Industrial Company | Cap mounted drive for a brushless DC motor |
| CN1281284A (en) * | 1999-07-02 | 2001-01-24 | 建准电机工业股份有限公司 | Electric motor with improved locating structure of rotor |
| CN2393259Y (en) * | 1999-11-11 | 2000-08-23 | 华戈扬 | Double-phase driven double-winding dc. brushless electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1734896A (en) | 2006-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101548462B (en) | Single phase ac synchronous motor | |
| CN105811815A (en) | Pulse feedback output control method of BLDC motor and air conditioning system with application of method | |
| CN201466836U (en) | Three-phase centralized winding type electric motor with redundant winding | |
| CN1691469B (en) | Variable speed motor | |
| CN101769253A (en) | Integrated switched reluctance electric scroll compressor assembly for vehicle air conditioning | |
| CN100471013C (en) | Parallel type two-phase full wave brushless DC motor | |
| CN101442247A (en) | Six-phase switch reluctance motor system | |
| CN202043066U (en) | Sensorless and brushless DC (direct current) motor controller | |
| CN103248298A (en) | Driving method for DC motor | |
| CN100471014C (en) | Series type two-phase full wave brushless DC motor | |
| CN201063514Y (en) | Novel switch reluctance motor system | |
| CN109617271A (en) | A kind of reluctance motor and preparation method with overlapping linking stator | |
| CN212518850U (en) | Three-phase three-wire system switched reluctance motor driving system | |
| CN102379083B (en) | Single phase induction motor | |
| CN201142659Y (en) | Double-H bridge structure of permanent-magnet motor frequency conversion controller | |
| CN201956863U (en) | Brushless DC (direct current) disc type direct drive motor for washing machine | |
| CN206790386U (en) | Immersible pump Special switch magneto-resistance motor governing system | |
| CN2909683Y (en) | Magnetic polar structure of switching reluctance motor | |
| CN206835022U (en) | A kind of driven by Brush-Less DC motor control system | |
| CN204304750U (en) | Brushless DC motor without position sensor | |
| CN205792125U (en) | A kind of scooter brushless direct current motor | |
| CN109510417A (en) | Mixed rotor high-torque direct driving synchronous motor and its control method | |
| CN201588780U (en) | Integral switched reluctance electric scroll compressor assembly for vehicle air conditioning | |
| CN112367001B (en) | Contactless variable topology motor system | |
| JP3099864U (en) | Series two-phase full-wave brushless DC motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |