CN210431163U - 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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- CN210431163U CN210431163U CN201921763462.3U CN201921763462U CN210431163U CN 210431163 U CN210431163 U CN 210431163U CN 201921763462 U CN201921763462 U CN 201921763462U CN 210431163 U CN210431163 U CN 210431163U
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Abstract
The utility model discloses a novel brushless synchronous machine and electric fan of built-in inverter circuit belongs to the motor field, including alternating current brushless motor, contravariant control module and fixed casing, alternating current 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 connecting wire, power connecting wire and control connecting wire with contravariant control module connects, does contravariant control module provides DC power supply and control signal, contravariant control module drives according to control signal alternating current brushless motor rotates/stops. The utility model discloses regard as a DC motor with the AC brushless motor after the integrated contravariant, the motor after the integrated contravariant only reserves power and control line connecting wire, and the wiring is simple, makes things convenient for the application under the pure direct current environment greatly.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially indicate a novel brushless synchronous machine and electric fan of built-in inverter circuit.
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.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel brushless synchronous machine and electric fan of built-in inverter circuit has solved among the prior art if want to use AC brushless synchronous machine in DC power supply system, and the user needs to set up inverter circuit, uses inconvenient problem.
The technical scheme of the utility model is realized like this:
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 a 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 present invention, the H-bridge driving circuit includes MOS transistors Q1-Q4, the control circuit connects the gates of MOS transistors Q1-Q4 respectively, the VCC pin connects the drains of MOS transistors Q1 and Q3, the sources of MOS transistors Q1 and Q3 connect the drains of MOS transistors Q2 and Q4 respectively, the common terminal of MOS transistors Q1 and Q2 connects the OUT2 pin, the common terminal of MOS transistors Q3 and Q4 connects the OUT1 pin, and the sources of MOS transistors Q2 and Q4 connect the 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.
As 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 further connects the dead zone control circuit, the over-temperature protection circuit and the over-current protection circuit.
An electric fan comprises the novel brushless synchronous motor with the built-in inverter circuit.
The beneficial effects of the utility model reside in 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 needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 inventive exercise.
Fig. 1 is a schematic structural diagram of a novel brushless synchronous motor with an internal inverter circuit according to the present invention;
fig. 2 is a schematic circuit diagram of the novel brushless synchronous motor with an internal inverter circuit 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the utility model provides a novel brushless synchronous motor of built-in inverter circuit, including alternating current brushless motor 1, contravariant control module 2 and fixed casing 3, alternating current brushless motor 1 and contravariant control module 2 are integrated in fixed casing 3, and fixed casing 3 outside is equipped with three motor connecting wire, including two power connecting wires and a control connecting wire, power connecting wire and control connecting wire are connected with contravariant control module 2, provide DC power supply and control signal for contravariant control module 2, contravariant control module 2 rotates/stops according to control signal drive alternating current brushless motor 1. 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 utility model also provides an electric fan, novel brushless synchronous motor including 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 utility model provides an integrated IC solution to single chip adds a small amount of electric capacity and can realize the contravariant function, and is very big 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 above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made 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 |
|---|---|---|---|
| CN201921763462.3U CN210431163U (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 |
|---|---|---|---|
| CN201921763462.3U CN210431163U (en) | 2019-10-17 | 2019-10-17 | Novel brushless synchronous motor with built-in inverter circuit and electric fan |
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| Publication Number | Publication Date |
|---|---|
| CN210431163U true CN210431163U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921763462.3U Active CN210431163U (en) | 2019-10-17 | 2019-10-17 | Novel brushless synchronous motor with built-in inverter circuit and electric fan |
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| Country | Link |
|---|---|
| CN (1) | CN210431163U (en) |
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2019
- 2019-10-17 CN CN201921763462.3U patent/CN210431163U/en active Active
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Effective date of registration: 20231201 Address after: 518000 706, Zhonghua science and technology building, Guangxia Road, shangmeilin, Futian District, Shenzhen, Guangdong Province Patentee after: Shenzhen Zhihua Technology Co.,Ltd. Address before: 518000 701, Guangxia Road, shangmeilin, Futian District, Shenzhen, Guangdong Province Patentee before: SHENZHEN CHINALC SEMICONDUCTOR Co.,Ltd. |