CN206878731U - A kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor - Google Patents
A kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor Download PDFInfo
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- CN206878731U CN206878731U CN201720288674.5U CN201720288674U CN206878731U CN 206878731 U CN206878731 U CN 206878731U CN 201720288674 U CN201720288674 U CN 201720288674U CN 206878731 U CN206878731 U CN 206878731U
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Abstract
It the utility model is related to a kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor, including dc source, H bridge inverters, permagnetic synchronous motor, single-chip microcomputer and drive circuit, permanent-magnetic synchronous motor stator winding has two sets of spatially orthogonal α and β windings, the shorted on both ends of β windings, the both ends access H bridge inverters of α windings, control chip control four switching devices of H bridge inverters using the cheap single-chip microcomputer of cost by drive circuit.The utility model have it is energy-efficient, simple in construction, without starting or the characteristics of running capacitor, cost be cheap, variable-ratio.
Description
Technical field
A kind of single-phase variable speed permanent magnetism synchronous motor is the utility model is related to, more particularly to a kind of heating ventilating and air conditioning
The single-phase variable speed permanent magnetism synchronous motor of blower fan, belongs to machine field.
Background technology
Single phase fan motor is widely applied in heating ventilating and air conditioning low-power fan field, it is contemplated that cost
Factor, at present generally using capacitor start or the single-phase asynchronous machine and permagnetic synchronous motor of capacitor operating, but it is inefficient, it is single
Although acc power is little, usage quantity is a lot, and waste of energy is extremely serious.Therefore, many manufacturers release efficient one after another
Three-phase permanent magnet synchronous motor, because cost is higher, it is mainly used in powerful blower fan field, is difficult to push away in low-power fan field
Extensively.
Utility model content
For existing Shortcomings, the utility model offer is a kind of energy-efficient, simple in construction, electric without starting or operating
Hold, cost is cheap, variable-ratio single-phase permanent-magnet synchronous motor.
Illustrate the operation principle involved by the utility model below.
Capacitor operating single-phase permanent-magnet synchronous motor system construction drawing is as shown in figure 1, according to the theory of permagnetic synchronous motor, electricity
The efficiency eta of machine is：
In formulaRespectively α windings and β winding axle rotor fluxs, vα、vβThe respectively voltage of α and β windings, iα、iβ
The respectively electric current of α and β windings, n are motor speed.
From formula (1) if in it can be found that vβEqual to 0, i.e. β short circuit in windings, then the efficiency of motor can obtain one
Fixed raising.
According to above-mentioned design, the utility model uses following technical proposals, including dc source E, H bridge inverter, forever
Magnetic-synchro motor, single-chip microcomputer and drive circuit.
Described H bridge inverters include switching element T 1, switching element T 2, switching element T 3, switching element T 4, derailing switch
Part T1 D poles, the D poles of switching element T 3, dc source E anode tandems, the S poles of switching element T 2, the S poles of switching element T 4,
It is grounded after dc source E negative terminal tandems.
Described permagnetic synchronous motor includes two α windings, β windings stator winding, vertical on α windings and β winding spaces,
The shorted on both ends of β windings, the D poles tandem of the upper end of α windings and the S poles of switching element T 1, switching element T 2, the lower end of α windings
The D poles tandem of S poles, switching element T 4 with switching element T 3.
Described single-chip microcomputer uses R8C2L, and the P21 pins of single-chip microcomputer and the HIN1 pins of drive circuit, HIN2 pins connect
Connect, the P23 pins of single-chip microcomputer and the LIN1 pins of drive circuit, LIN2 pins connect.
Described drive circuit uses IR2130, and the HO1 pins of drive circuit are connected with the G poles of switching element T 1, driving
The HO2 pins of circuit are connected with the G poles of switching element T 3, and the LO1 pins of drive circuit are connected with the G poles of switching element T 2, are driven
The LO2 pins of dynamic circuit are connected with the G poles of switching element T 4.
Compared with prior art, α windings are connected to H bridge inverters, and β winding short circuits for this practicality, do not absorb work(from power supply
Rate, its electric current is only in winding inner loop, to produce rotating excitation field, therefore, have it is energy-efficient, simple in construction, need not open
The characteristics of dynamic or running capacitor, cost are cheap, variable-ratio.
Brief description of the drawings
Fig. 1 is capacitor operating single-phase permanent-magnet synchronous motor system construction drawing.
Fig. 2 is system construction drawing of the present utility model.
Embodiment
Utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 a kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor of the present utility model includes dc source E, H bridge
Inverter, permagnetic synchronous motor, single-chip microcomputer and drive circuit.H bridge inverters include switching element T 1, switching element T 2, switch
Device T3, switching element T 4, the D poles of switching element T 1, the D poles of switching element T 3, dc source E anode tandems, switching device
It is grounded after T2 S poles, the S poles of switching element T 4, dc source E negative terminal tandems；Permagnetic synchronous motor includes α windings, β windings two
On individual stator winding, α windings and β winding spaces vertically, the shorted on both ends of β windings, the upper end of α windings and the S of switching element T 1
Pole, the D poles tandem of switching element T 2, the D poles tandem of the lower end of α windings and the S poles of switching element T 3, switching element T 4；Monolithic
Machine uses R8C2L, and the P21 pins of single-chip microcomputer and the HIN1 pins of drive circuit, HIN2 pins connect, the P23 pins of single-chip microcomputer
LIN1 pins, LIN2 pins with drive circuit are connected；Drive circuit uses IR2130, HO1 pins and the switch of drive circuit
Device T1 G poles connection, the HO2 pins of drive circuit are connected with the G poles of switching element T 3, and the LO1 pins of drive circuit are with opening
Device T2 G poles connection is closed, the LO2 pins of drive circuit are connected with the G poles of switching element T 4.
The course of work of the present utility model is：
After system starts, single-chip microcomputer R8C2L produces voltage-frequency and sent respectively by drive module IR2130 than constant PWM ripples
To the amplified α windings for being sent to magneto of four switching devices of H bridge inverters, motor starts running.Change R8C2L
P35 pin voltages, can be with the speed of regulation motor.
Above-mentioned embodiment is used for explaining the utility model, rather than the utility model is limited, in this reality
With any modifications and changes in new spirit and scope of the claims, made to the utility model, this is both fallen within
In the protection domain of utility model.
Claims (1)
1. a kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor, including dc source E, H bridge inverter, permagnetic synchronous motor, monolithic
Machine and drive circuit, it is characterised in that：
H bridge inverters include switching element T 1, switching element T 2, switching element T 3, switching element T 4, the D poles of switching element T 1,
The D poles of switching element T 3, dc source E anode tandems, the S poles of switching element T 2, the S poles of switching element T 4, dc source E are born
It is grounded after the tandem of end；
Permagnetic synchronous motor includes two α windings, β windings stator winding, vertical on α windings and β winding spaces, and the two of β windings
Hold short circuit, the D poles tandem of the upper end of α windings and the S poles of switching element T 1, switching element T 2, the lower end of α windings and switching device
T3 S poles, the D poles tandem of switching element T 4；
Single-chip microcomputer uses R8C2L, and the P21 pins of single-chip microcomputer and the HIN1 pins of drive circuit, HIN2 pins connect, single-chip microcomputer
The LIN1 pins of P23 pins and drive circuit, the connection of LIN2 pins；
Drive circuit uses IR2130, and the HO1 pins of drive circuit are connected with the G poles of switching element T 1, and the HO2 of drive circuit draws
Pin is connected with the G poles of switching element T 3, and the LO1 pins of drive circuit are connected with the G poles of switching element T 2, the LO2 of drive circuit
Pin is connected with the G poles of switching element T 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720288674.5U CN206878731U (en) | 2017-03-16 | 2017-03-16 | A kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720288674.5U CN206878731U (en) | 2017-03-16 | 2017-03-16 | A kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878731U true CN206878731U (en) | 2018-01-12 |
Family
ID=61327088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720288674.5U Expired - Fee Related CN206878731U (en) | 2017-03-16 | 2017-03-16 | A kind of single-phase variable frequency speed-adjusting permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125072A1 (en) * | 2018-12-19 | 2020-06-25 | 厦门市必易微电子技术有限公司 | Stepless speed regulation circuit and method for single-phase motor |
-
2017
- 2017-03-16 CN CN201720288674.5U patent/CN206878731U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125072A1 (en) * | 2018-12-19 | 2020-06-25 | 厦门市必易微电子技术有限公司 | Stepless speed regulation circuit and method for single-phase motor |
| US10972038B2 (en) | 2018-12-19 | 2021-04-06 | Xiamen Kiwi Instruments Corporation | Stepless motor driving circuit and associated driving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20190316 |