CN207354082U - A kind of New Type of Direct-current Machine starter - Google Patents

Abstract

The utility model discloses a kind of New Type of Direct-current Machine starter,Including power supply,Transmission line,Clean unit,PWM generator,IGBT is managed,Diode,Armature winding,Magnet exciting coil,Sampling unit,Arm processor,Photoelectric coupling is isolated,Communication chip and display recording unit,Clean unit is connected with by transmission line on the right side of the power supply,PWM generator is provided with the right side of the clean unit,IGBT pipes are provided with the right side of the PWM generator,Diode is provided with the downside of the IGBT pipes,Armature winding is provided with the right side of the diode,Magnet exciting coil is provided with the right side of the armature winding,Arm processor is provided with the left of the sampling unit,The arm processor is internally provided with photoelectric coupling isolation,The photoelectric coupling isolation right side is provided with communication chip,Display recording unit is provided with the downside of the communication chip,The New Type of Direct-current Machine starter can realize without impact and smoothly the startup of direct current generator,Improve the stability of system operation.

Description

A New Type of DC Motor Starting Device

technical field

The utility model relates to the technical field of electronic control, in particular to a novel DC motor starting device.

Background technique

DC motor is a relatively common motor, which is widely used in all walks of life, but the armature current is relatively large during the starting process of DC motor, which seriously affects the safety of the motor and its power supply equipment. , The device that makes the DC motor start smoothly is very necessary.

Utility model content

The purpose of this utility model is to provide a novel DC motor starting device to solve the problems in the above background.

In order to solve the above object, the utility model provides the following technical solutions: a novel DC motor starting device, including a power supply, a transmission line, a purification unit, a PWM generator, an IGBT tube, a diode, an armature winding, an excitation coil, a sampling unit, and an ARM processing device, photoelectric coupling isolation, communication chip and display recording unit, the right side of the power supply is connected to a purification unit through a transmission line, the right side of the purification unit is provided with a PWM generator, and the right side of the PWM generator is provided with an IGBT tube. The lower side of the IGBT tube is provided with a diode, the right side of the diode is provided with an armature winding, the right side of the armature winding is provided with an excitation coil, the lower side of the excitation coil is provided with a sampling unit, and the left side of the sampling unit is provided There is an ARM processor, and a photoelectric coupling isolation is arranged inside the ARM processor, a communication chip is arranged on the right side of the photoelectric coupling isolation, and a display recording unit is arranged on the lower side of the communication chip.

Preferably, the purification unit is provided with a filter device, which can control the fluctuation range of the voltage, avoid unreasonable jumping of the switch, and ensure the smooth operation of the motor.

Preferably, the PWM generator is connected to the ARM processor through a transmission line, and when the ARM processor receives a command to start the motor, it will control the PWM processor to send a PWM pulse, and the current returns to the negative pole from the input positive pole through the IGBT tube and the armature winding, Constitutes a positive current and generates torque to drive the motor to rotate and start.

Preferably, the sampling unit is provided with a Hall current detection unit and a Hall voltage detection unit, and the sampling unit will collect current and voltage data and transmit them to the ARM processor. When the ARM processor detects that the current or voltage exceeds a predetermined value , it will control the photoelectric coupling isolation to disconnect the power supply, and an alarm prompt will be issued on the display and recording unit.

Preferably, the ARM processor is provided with a calculation module, the communication chip is connected to the external control device through the information transmission line, the calculation module will control the communication chip to receive external commands, and the calculation module will transmit the motor data to the display and recording unit.

Compared with the prior art, the beneficial effect of the utility model is that the PWM generator and the IGBT tube set in the new DC motor starting device can control the current, so that the motor starts smoothly, ensuring the safety of the motor and power supply equipment, and the sampling unit With the setting of ARM processor, the information of the internal current and voltage of the motor can be displayed to the user, so that the user can control and adjust the motor.

Description of drawings

Fig. 1 is a schematic diagram of the utility model.

FIG. 2 is a schematic diagram of the location of the display and recording unit of the present invention.

In the figure: 1. Power supply, 2. Transmission line, 3. Purification unit, 4. PWM generator, 5. IGBT tube, 6. Diode, 7. Armature winding, 8. Excitation coil, 9. Sampling unit, 10. ARM Processor, 11. Photoelectric coupling isolation, 12. Communication chip, 13. Display and recording unit.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, the utility model provides the following technical solutions: a novel DC motor starting device, including a power supply 1, a transmission line 2, a purification unit 3, a PWM generator 4, an IGBT tube 5, a diode 6, an armature winding 7, an excitation Coil 8, sampling unit 9, ARM processor 10, photoelectric coupling isolation 11, communication chip 12 and display recording unit 13, the right side of the power supply 1 is connected to the purification unit 3 through the transmission line 2, the purification unit 3 is provided with a filtering device, the filtering device It can control the fluctuation range of the voltage, avoid unreasonable jumping of the switch, and ensure the smooth operation of the motor. The right side of the purification unit 3 is provided with a PWM generator 4, and the PWM generator 4 is connected to the ARM processor 10 through the transmission line 2. When the ARM processor 10 accepts When the command starts the motor, it will control the PWM processor 4 to send out PWM pulses, and the current will return to the negative pole from the input positive pole through the IGBT tube 5 and the armature winding 7, forming a positive current and generating torque, driving the motor to rotate and start, and PWM occurs The right side of the device 4 is provided with an IGBT tube 5, the lower side of the IGBT tube 5 is provided with a diode 6, the right side of the diode 6 is provided with an armature winding 7, the right side of the armature winding 7 is provided with an excitation coil 8, and the lower side of the excitation coil 8 A sampling unit 9 is provided, and the sampling unit 9 is provided with a Hall current detection unit and a Hall voltage detection unit. The sampling unit 9 will collect current and voltage data and transmit them to the ARM processor 10. When the ARM processor 10 detects the current or When the voltage exceeds a predetermined value, the photoelectric coupling isolation 11 will be controlled to disconnect the power supply 1, and an alarm prompt will be issued on the display and recording unit 13. An ARM processor 10 is arranged on the left side of the sampling unit 9, and a computing module is arranged inside the ARM processor 10. The communication chip 12 is connected to the external control device through the information transmission line. The calculation module will control the communication chip 12 to receive external commands, and the calculation module will transmit the motor data to the display and recording unit 13. The ARM processor 10 is internally provided with a photoelectric coupling isolation 11, A communication chip 12 is arranged on the right side of the photoelectric coupling isolation 11 , and a display recording unit 13 is arranged on the lower side of the communication chip 12 .

Working principle: When using this new type of DC motor starting device, first understand the structure of the device. There is a filter device in the purification unit 3. The filter device can control the fluctuation range of the voltage, avoid the switch from jumping for no reason, and ensure the smooth operation of the motor. The right side of the purification unit 3 is provided with a PWM generator 4, and the PWM generator 4 is connected to the ARM processor 10 through the transmission line 2. When the ARM processor 10 receives a command to start the motor, it will control the PWM processor 4 to send a PWM pulse, and the current is from the input The positive pole returns to the negative pole through the IGBT tube 5 and the armature winding 7 to form a forward current and generate torque, which drives the motor to rotate and start. The right side of the PWM generator 4 is provided with an IGBT tube 5 , and the lower side of the IGBT tube 5 is provided with a diode. 6. The right side of the diode 6 is provided with an armature winding 7, the right side of the armature winding 7 is provided with an excitation coil 8, the lower side of the excitation coil 8 is provided with a sampling unit 9, and a Hall current detection device is provided in the sampling unit 9. Unit and Hall voltage detection unit, the sampling unit 9 will collect current and voltage data and transmit it to the ARM processor 10, when the ARM processor 10 detects that the current or voltage exceeds a predetermined value, it will control the photoelectric coupling isolation 11 to disconnect the power supply 1, And an alarm prompt is sent on the display recording unit 13. An ARM processor 10 is arranged on the left side of the sampling unit 9. A computing module is arranged inside the ARM processor 10. The communication chip 12 is connected with an external control device through an information transmission line, and the computing module can control the communication. The chip 12 receives external commands, and the calculation module transmits the motor data to the display and recording unit 13 .

Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art can modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the utility model.

Claims (6)

1. A new type of DC motor starter, characterized in that it includes a power supply (1), a transmission line (2), a purification unit (3), a PWM generator (4), an IGBT tube (5), a diode (6), an electric Pivot winding (7), excitation coil (8), sampling unit (9), ARM processor (10), photoelectric coupling isolation (11), communication chip (12) and display recording unit (13), the power supply (1 ) is connected to a purification unit (3) through a transmission line (2), the right side of the purification unit (3) is provided with a PWM generator (4), and the right side of the PWM generator (4) is provided with an IGBT tube (5 ), the lower side of the IGBT tube (5) is provided with a diode (6), the right side of the diode (6) is provided with an armature winding (7), and the right side of the armature winding (7) is provided with an excitation coil ( 8), a sampling unit (9) is provided on the lower side of the excitation coil (8), an ARM processor (10) is provided on the left side of the sampling unit (9), and a photoelectric A coupling isolation (11), a communication chip (12) is arranged on the right side of the photoelectric coupling isolation (11), and a display recording unit (13) is arranged on the lower side of the communication chip (12). 2. A novel DC motor starting device according to claim 1, characterized in that a filtering device is arranged in the purification unit (3). 3. A novel DC motor starting device according to claim 1, characterized in that: the PWM generator (4) is connected to the ARM processor (10) through a transmission line (2). 4. A new DC motor starting device according to claim 1, characterized in that: the collector of the IGBT tube (5) is connected to the positive pole of the power supply, and the emitter of the IGBT tube (5) is connected to the armature winding (7). 5. A novel DC motor starting device according to claim 1, characterized in that: the sampling unit (9) is provided with a Hall current detection unit and a Hall voltage detection unit. 6. A novel DC motor starting device according to claim 1, characterized in that: said ARM processor (10) is provided with a calculation module inside.