CN110676982A - Novel brushless synchronous motor with built-in inverter circuit and electric fan - Google Patents
Novel brushless synchronous motor with built-in inverter circuit and electric fan Download PDFInfo
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- CN110676982A CN110676982A CN201910989966.5A CN201910989966A CN110676982A CN 110676982 A CN110676982 A CN 110676982A CN 201910989966 A CN201910989966 A CN 201910989966A CN 110676982 A CN110676982 A CN 110676982A
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- inverter
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims description 22
- 230000010354 integration Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a novel brushless synchronous motor with a built-in inverter circuit, which belongs to the field of motors and comprises an alternating current brushless motor, an inverter control module and a fixed shell, wherein the alternating current brushless motor and the inverter control module are integrated in the fixed shell, three motor connecting wires are arranged outside the fixed shell and comprise two power connecting wires and one control connecting wire, the power connecting wires and the control connecting wires are connected with the inverter control module to provide a direct current power supply and control signals for the inverter control module, and the inverter control module drives the alternating current brushless motor to rotate/stop according to the control signals. The invention regards the integrated inverted AC brushless motor as a DC motor, and the integrated inverted motor only reserves a power supply and control line connecting line, thus having simple wiring and being greatly convenient for application in pure DC environment.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a novel brushless synchronous motor with an internal inverter circuit and an electric fan.
Background
In a large number of ac electromechanical devices, an ac brushless synchronous motor with a strict ratio of operating speed to power frequency is often used, and the motor has the advantages of constant speed, stable performance, and relatively simple structure and control mode. In a common application, alternating current (generally AC 110V-220V-50/60 hz is subjected to voltage reduction treatment) is connected to a power supply end of an alternating current brushless synchronous motor to drive the motor to run. In a direct-current power supply system, a brushless motor is sometimes needed, and the existing direct-current motors are all brush motors, so that the requirements of users cannot be met. If the alternating current brushless synchronous motor is applied to a direct current power supply system, a user needs to set an inverter circuit, and the application is inconvenient.
Disclosure of Invention
The invention provides a novel brushless synchronous motor with an internal inverter circuit and an electric fan, which solve the problem that in the prior art, if an alternating current brushless synchronous motor is applied to a direct current power supply system, a user needs to set the inverter circuit, and the application is inconvenient.
The technical scheme of the invention is realized as follows:
the utility model provides a novel brushless synchronous motor of built-in inverter circuit, includes AC brushless motor, contravariant control module and fixed casing, AC brushless motor and contravariant control module are integrated in the fixed casing, fixed casing outside is equipped with three motor connecting wire, including two power connecting wires and a control connection line, power connecting wire and control connection line with contravariant control module connects, does contravariant control module provides DC power supply and control signal, contravariant control module is according to control signal drive AC brushless motor rotates/stops.
As a preferred embodiment of the present invention, one of the power connection lines is a 12V VCC connection line, and the other is a ground connection line; the control connecting line provides a control signal adopting a TTL level standard, the alternating current brushless motor rotates when the control signal is at a high level, and the alternating current brushless motor stops rotating when the control signal is at a low level.
As a preferred embodiment of the present invention, the inverter control module includes an inverter control integrated chip, an internal circuit of the inverter control integrated chip includes a control circuit, an inverter control circuit, and an H-bridge driving circuit, and the control circuit is connected to the inverter control circuit and the H-bridge driving circuit, respectively; the inverter control integrated chip comprises a VCC pin, a GND pin, a CTRL pin, an OUT1 pin and an OUT2 pin, wherein the OUT1 pin and the OUT2 pin are driving output pins of the H-bridge driving circuit; the VCC pin is connected with the VCC connecting wire, the GND pin is connected with the ground connecting wire, the CTRL pin is connected with the control connecting wire, and the OUT1 pin and the OUT2 pin are connected with the pins of the alternating current brushless motor.
As a preferred embodiment of the present invention, the inverter control module further includes capacitors C1-C4, a capacitor C1 is connected between the OUT1 pin and the OUT2 pin, the OUT1 pin is further connected to one pin of the ac brushless motor and one end of a capacitor C2, and the other end of the capacitor C2 is grounded; the OUT2 pin is also connected with the other pin of the alternating current brushless motor and one end of a capacitor C3, and the other end of the capacitor C3 is grounded; one end of the capacitor C4 is connected with the VCC connecting wire, and the other end is connected with the grounding connecting wire.
As a preferred embodiment of the invention, the H-bridge driving circuit comprises MOS tubes Q1-Q4, the control circuit is respectively connected with the gates of the MOS tubes Q1-Q4, a VCC pin is connected with the drains of the MOS tubes Q1 and Q3, the sources of the MOS tubes Q1 and Q3 are respectively connected with the drains of the MOS tubes Q2 and Q4, the common end of the MOS tubes Q1 and Q2 is connected with an OUT2 pin, the common end of the MOS tubes Q3 and Q4 is connected with an OUT1 pin, and the sources of the MOS tubes Q2 and Q4 are connected with a GND pin.
As a preferred embodiment of the present invention, the MOS transistors Q1 and Q3 are P-channel MOS transistors; the MOS tubes Q2 and Q4 are N-channel MOS tubes.
In a preferred embodiment of the present invention, the control circuit is formed by a PLC chip.
As a preferred embodiment of the present invention, the control circuit is further connected to a dead zone control circuit, an over-temperature protection circuit and an over-current protection circuit.
An electric fan comprises the novel brushless synchronous motor with the built-in inverter circuit.
The invention has the beneficial effects that: the inverter circuit and the alternating current brushless motor are integrated together, and the alternating current brushless motor after integrated inversion can be regarded as a direct current motor from the outside, so that the application in a pure direct current environment is greatly facilitated; the motor after the integrated inversion only reserves a power supply and control line connecting line, has simple wiring and is greatly convenient to apply under the pure direct current environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a novel brushless synchronous motor with an inverter circuit built therein according to the present invention;
fig. 2 is a schematic circuit diagram of a novel brushless synchronous motor with an inverter circuit built therein according to the present invention.
In the figure, 1-ac brushless motor; 2-inversion control module; and 3, fixing the shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a novel brushless synchronous motor with an inverter circuit built therein, which includes an ac brushless motor 1, an inverter control module 2 and a fixed housing 3, the ac brushless motor 1 and the inverter control module 2 are integrated in the fixed housing 3, three motor connecting lines are disposed outside the fixed housing 3, including two power connecting lines and one control connecting line, the power connecting lines and the control connecting line are connected to the inverter control module 2, and provide a dc power supply and a control signal for the inverter control module 2, and the inverter control module 2 drives the ac brushless motor 1 to rotate/stop according to the control signal. Specifically, fixed casing 3 is the metal, and inverter control module 2 is integrated on a circuit board, is equipped with the cavity that holds the circuit board in the fixed casing 3, and accessible screw will be fixed casing 3 and circuit board fixed connection, and fixed casing 3 includes casing and lower casing, goes up casing and lower casing and passes through screw fixation or welded fastening. And a connecting wire of the alternating current brushless motor 1 is welded on a circuit board integrated with the inversion control module 2.
One power supply connecting wire is a 12V VCC connecting wire, and the other power supply connecting wire is a grounding connecting wire; the control connection line provides a control signal adopting a TTL level standard, and when the control signal is a high level, the ac brushless motor 1 rotates, and when the control signal is a low level, the ac brushless motor 1 stops rotating. The motor connecting wires are three wires, namely VCC, GND and CTRL. VCC is generally 12V, CTRL adopts TTL level standard, the motor works at high level, and the motor is standby at low level; and when CTRL is short-circuited to VCC, the motor works, and when CTRL is short-circuited to GND, the motor is in standby.
The inversion control module 2 comprises an inversion control integrated chip, an internal circuit of the inversion control integrated chip comprises a control circuit, an inversion control circuit and an H-bridge drive circuit, and the control circuit is respectively connected with the inversion control circuit and the H-bridge drive circuit; the inversion control integrated chip comprises a VCC pin, a GND pin, a CTRL pin, an OUT1 pin and an OUT2 pin, wherein the OUT1 pin and the OUT2 pin are driving output pins of the H-bridge driving circuit; VCC pin connects the VCC connecting wire, and the GND pin is connected the ground connection connecting wire, and the CTRL pin connects the control connecting wire, and OUT1 pin and OUT2 pin connect the pin of alternating current brushless motor 1. The control circuit is formed by a PLC chip. The control circuit is also connected with a dead zone control circuit, an over-temperature protection circuit and an over-current protection circuit. The model of the PLC chip can be customized by technicians according to the requirements of users on high cost, and the dead zone control circuit, the over-temperature protection circuit and the over-current protection circuit are applied to the existing circuits and are not described any more.
The inversion control module 2 further comprises capacitors C1-C4, a capacitor C1 is connected between the OUT1 pin and the OUT2 pin, the OUT1 pin is further connected with one pin of the alternating current brushless motor 1 and one end of a capacitor C2, and the other end of the capacitor C2 is grounded; the pin OUT2 is also connected with another pin of the AC brushless motor 1 and one end of a capacitor C3, and the other end of the capacitor C3 is grounded; one end of the capacitor C4 is connected with the VCC connecting wire, and the other end is connected with the grounding connecting wire.
The H-bridge driving circuit comprises MOS tubes Q1-Q4, a control circuit is respectively connected with the grids of the MOS tubes Q1-Q4, a VCC pin is connected with the drains of the MOS tubes Q1 and Q3, the sources of the MOS tubes Q1 and Q3 are respectively connected with the drains of the MOS tubes Q2 and Q4, the common end of the MOS tubes Q1 and Q2 is connected with an OUT2 pin, the common end of the MOS tubes Q3 and Q4 is connected with an OUT1 pin, and the sources of the MOS tubes Q2 and Q4 are connected with a GND pin.
MOS tubes Q1 and Q3 are P-channel MOS tubes; the MOS tubes Q2 and Q4 are N-channel MOS tubes. In other embodiments, the MOS transistors Q1-Q4 can be replaced by triodes.
The invention also provides an electric fan which comprises the novel brushless synchronous motor with the built-in inverter circuit. The oscillating control of the electric fan can directly use a novel brushless synchronous motor with a built-in inverter circuit to remove two wires of a direct current power supply, and the main control unit can control the oscillating to be opened and closed only by one signal wire.
The invention provides an integrated IC solution, which can realize an inversion function by adding a small amount of capacitors to a single chip, and is greatly convenient to use. And because the number of elements is sharply reduced, the control circuit can be integrated into the motor, only the connecting line of the power supply and the control line is reserved, the alternating current property of the motor is packaged inside, and the motor after integrated inversion can be regarded as a direct current motor from the outside, so that the application under the pure direct current environment is greatly facilitated.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel brushless synchronous motor of built-in inverter circuit which characterized in that: including exchanging brushless motor, contravariant control module and fixed casing, exchange brushless motor and contravariant control module integration in the fixed casing, fixed casing outside is equipped with three motor connecting wire, including two power connecting wires and a control connection line, power connecting wire and control connection line with contravariant control module connects, does contravariant control module provides DC power supply and control signal, contravariant control module is according to the control signal drive exchange brushless motor rotates/stops.
2. The novel brushless synchronous motor with built-in inverter circuit according to claim 1, characterized in that: one power supply connecting wire is a 12V VCC connecting wire, and the other power supply connecting wire is a grounding connecting wire; the control connecting line provides a control signal adopting a TTL level standard, the alternating current brushless motor rotates when the control signal is at a high level, and the alternating current brushless motor stops rotating when the control signal is at a low level.
3. The novel brushless synchronous motor with built-in inverter circuit according to claim 2, characterized in that: the inverter control module comprises an inverter control integrated chip, an internal circuit of the inverter control integrated chip comprises a control circuit, an inverter control circuit and an H-bridge drive circuit, and the control circuit is respectively connected with the inverter control circuit and the H-bridge drive circuit; the inverter control integrated chip comprises a VCC pin, a GND pin, a CTRL pin, an OUT1 pin and an OUT2 pin, wherein the OUT1 pin and the OUT2 pin are driving output pins of the H-bridge driving circuit; the VCC pin is connected with the VCC connecting wire, the GND pin is connected with the ground connecting wire, the CTRL pin is connected with the control connecting wire, and the OUT1 pin and the OUT2 pin are connected with the pins of the alternating current brushless motor.
4. The novel brushless synchronous motor with built-in inverter circuit according to claim 3, wherein: the inversion control module further comprises capacitors C1-C4, a capacitor C1 is connected between the OUT1 pin and the OUT2 pin, the OUT1 pin is further connected with one pin of the alternating current brushless motor and one end of a capacitor C2, and the other end of the capacitor C2 is grounded; the OUT2 pin is also connected with the other pin of the alternating current brushless motor and one end of a capacitor C3, and the other end of the capacitor C3 is grounded; one end of the capacitor C4 is connected with the VCC connecting wire, and the other end is connected with the grounding connecting wire.
5. The novel brushless synchronous motor with built-in inverter circuit according to claim 3, wherein: the H-bridge driving circuit comprises MOS tubes Q1-Q4, the control circuit is respectively connected with the grids of the MOS tubes Q1-Q4, a VCC pin is connected with the drains of the MOS tubes Q1 and Q3, the sources of the MOS tubes Q1 and Q3 are respectively connected with the drains of the MOS tubes Q2 and Q4, the common ends of the MOS tubes Q1 and Q2 are connected with an OUT2 pin, the common ends of the MOS tubes Q3 and Q4 are connected with an OUT1 pin, and the sources of the MOS tubes Q2 and Q4 are connected with a GND pin.
6. The novel brushless synchronous motor with built-in inverter circuit according to claim 5, wherein: the MOS tubes Q1 and Q3 are P-channel MOS tubes; the MOS tubes Q2 and Q4 are N-channel MOS tubes.
7. The novel brushless synchronous motor with built-in inverter circuit according to claim 3, wherein: the control circuit is formed by a PLC chip.
8. The novel brushless synchronous motor with built-in inverter circuit according to claim 3, wherein: the control circuit is also connected with a dead zone control circuit, an over-temperature protection circuit and an over-current protection circuit.
9. An electric fan characterized by comprising a novel brushless synchronous motor with an inverter circuit built in according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989966.5A CN110676982A (en) | 2019-10-17 | 2019-10-17 | Novel brushless synchronous motor with built-in inverter circuit and electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989966.5A CN110676982A (en) | 2019-10-17 | 2019-10-17 | Novel brushless synchronous motor with built-in inverter circuit and electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110676982A true CN110676982A (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910989966.5A Pending CN110676982A (en) | 2019-10-17 | 2019-10-17 | Novel brushless synchronous motor with built-in inverter circuit and electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110676982A (en) |
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2019
- 2019-10-17 CN CN201910989966.5A patent/CN110676982A/en active Pending
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Effective date of registration: 20231109 Address after: 518000 706, Zhonghua science and technology building, Guangxia Road, shangmeilin, Futian District, Shenzhen, Guangdong Province Applicant after: Shenzhen Zhihua Technology Co.,Ltd. Address before: 518000 701, Guangxia Road, shangmeilin, Futian District, Shenzhen, Guangdong Province Applicant before: SHENZHEN CHINALC SEMICONDUCTOR Co.,Ltd. |
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