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Speed control module and speed control circuit of brush direct-current tubular motor

A tubular motor, brushed DC technology, applied in the direction of DC motor speed/torque control, excitation or armature current control, control system, etc., to achieve the effect of novel structure design

Inactive Publication Date: 2013-05-01
HANGZHOU SHTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of doing this is: the brushed DC tubular motor speed control module can not only realize the normal up and down control of the brushed DC tubular motor, but also realize the super large torque control of the brushed DC tubular motor, effectively solving the problem of the brushed DC tubular motor. In the case of heavy load, the defect of belt drop is added, so as to achieve a stable and uniform drop under heavy load

Method used

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  • Speed control module and speed control circuit of brush direct-current tubular motor
  • Speed control module and speed control circuit of brush direct-current tubular motor
  • Speed control module and speed control circuit of brush direct-current tubular motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: with reference to attached figure 1 and 2 . The speed control module 2 of the brushed DC tubular motor consists of an amplifier circuit, a voltage follower circuit, a signal input terminal of the discharge circuit, and an integrated module of the discharge circuit. The integrated module is provided with a power input pin, a sampling signal input pin and a power output pin, and the sampling signal The input pin is the signal input terminal of the amplifier circuit in the integrated module, the signal output terminal of the amplifier circuit is connected to the signal input terminal of the voltage follower circuit, the signal output terminal of the voltage follower circuit is connected to the signal input terminal of the discharge circuit, and the signal output terminal of the discharge circuit is integrated Module power output pin. The discharge circuit in the integrated module is composed of resistors R1, R2, capacitor C5, and transistor Q1. The collecto...

Embodiment 1-1

[0013] Embodiment 1-1: On the basis of Embodiment 1, a resistor (discharge resistor) is connected in series between the output end of the control loop in the brushed DC tubular motor control module and the negative pole of the power supply to form a discharge circuit when the motor generates power .

[0014] The brushed DC tubular motor speed control module 2 can be composed of discrete components, or it can be composed of a single-chip microcomputer module and an auxiliary circuit. No matter which circuit is composed, the principle of its composition is the same as that of this application, so it will not be described here.

Embodiment 2

[0015] Embodiment 2: refer to the attached figure 2 and 3 . On the basis of Embodiment 1, the motor speed control circuit composed of a brushed DC tubular motor speed control module includes a brushed DC tubular motor, a motor power supply input terminal 1 and a brushed DC tubular motor speed control module 2 power supply The input pin is connected, the power output pin of the brushed DC tubular motor speed control module 2 is connected to the power supply terminal of the motor 3 and supplies power to the brushed DC tubular motor, and a sampling circuit 4 is connected to both ends of the brushed DC tubular motor 3 to collect the two motor The terminal voltage and the collected voltage signal are input to the sampling signal input pin of the brushed DC tubular motor speed control module 2. Described sampling circuit is made up of resistance R3, R4, R5, R6, diode D4, D5, rectifier bridge D1, and the connection point of resistance R3, R4 is connected with one end of resistance...

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PUM

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Abstract

The invention relates to a speed control module and a speed control circuit of a brush direct-current tubular motor, which can steadily and uniformly drop the brush direct-current tubular motor in a heavy object suspending state. The speed control module and the speed control circuit comprise the brush direct-current tubular motor; a motor power supply inlet wire input end is connected with a power supply input pin of the speed control module of the brush direct-current tubular motor; a power supply output pin of the speed control module of the brush direct-current tubular motor is connected with a power supply end of the motor and supplies power to the brush direct-current tubular motor; and a sampling circuit for acquiring voltage at two ends of the motor is connected in parallel between two ends of the brush direct-current tubular motor, and the acquired voltage signals are input to a sampling signal input pin of the speed control module of the brush direct-current tubular motor. The speed control module and the speed control circuit have the advantages of realizing stable and uniform ascending and descending of the brush direct-current tubular motor in a large torque output range and solving the application problem that the current brush direct-current tubular motors at home and abroad can output in a small torque output range, and the advantage of novel, unique, simple, reliable and practical structural design.

Description

technical field [0001] The invention relates to a speed control module and a speed control circuit of a brushed direct current tubular motor capable of stably and uniformly descending a brushed direct current tubular motor in the state of hanging heavy objects, and belongs to the field of control module and motor speed control circuit manufacturing. Background technique [0002] At present, the existing brushed DC tubular motor, when the motor lifts or rolls heavy objects, the motor works according to the output power characteristics, and the rising process is very stable; but in the falling process, the heavy objects will drag the motor Running, according to the characteristics of the motor, the weight will accelerate down. For example, in the application of the tubular DC motor in the rolling gate, when the rolling gate is descending, the rolling gate will drag the motor down rapidly, and the speed will become faster and faster, which will cause certain dangers. Therefore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P7/28H02P7/00
Inventor 华林
Owner HANGZHOU SHTECH