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Hand-held electric screwdriver motor control device

An electric screwdriver and motor control technology, which is applied in the direction of motor control, DC motor rotation control, portable motorized devices, etc., can solve the problems of uncontrolled maximum charging current and insufficient safety and reliability of motor control, so as to achieve fast switching and improve work safety The effect of reliability and ease of use

Active Publication Date: 2022-03-04
无锡东海智控软件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are still some problems in the above-mentioned electric screwdriver control box. During the use of the electric screwdriver, the rotation of the screwdriver is mainly driven by the motor. Therefore, the working reliability of the motor It will directly affect the working effect of the electric screwdriver. In the traditional electric screwdriver motor control system, a hardware circuit is used. The current protection value of the hardware circuit is fixed, and the full voltage of the hardware circuit structure is fixed. The maximum charge The current is determined by the output current of the charger used by the user. The maximum charging current is not controlled, and the motor control is not safe and reliable. The above-mentioned electric screwdriver control box does not effectively solve this problem.

Method used

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  • Hand-held electric screwdriver motor control device
  • Hand-held electric screwdriver motor control device

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as Figure 1 to Figure 2As shown, a hand-held electric screwdriver motor control device according to the embodiment of the present invention includes a main body 1, a control seat 2 is installed on the top of the main body 1, and a micro control unit 3 is installed inside the control seat 2, The inside of the main body 1 is equipped with a drive motor 4, a motor reduction box 5 and a battery 6, the motor reduction box 5 is connected with the batch nozzle 102 of the electric screwdriver, and the control seat 2 is equipped with an indicator light 8 corresponding to the battery 6, The battery 6 provides power for the micro control unit 3 , the drive motor 4 , the motor reduction box 5 and the indicator light 8 . When working, the main body 1 is installed on the cylinder of the electric screwdriver, and the micro-control unit 3 adopts a sixteen-bit micro-control unit software structure, and the software structure conforms to the EU safety certification, and different c...

Embodiment 2

[0039] Such as Figure 6 As shown in Comparative Example 1, another embodiment of the present invention is: a clockwork spring assembly 23 is installed on the shifting plate 18; during operation, the one-way plate 24 is opened after the switch plate 12 moves upward. Drive the dial 18 to rotate, and at the same time make the spring assembly 23 rotate to store energy. When the switch plate 12 moves down, the spring assembly 23 releases energy, driving the dial 18 to rotate quickly. Therefore, in the process of the switch plate 12 moving up and down, Different rotating speeds of the shifting plate 18 drive the striking plate 21 to hit the iron plate 19 at different speeds, and the warning sound sent will also change. By setting the changing warning sound, the warning effect can be further improved.

[0040] working principle:

[0041] The main body 1 is installed on the barrel of the electric screwdriver. The micro-control unit 3 adopts a 16-bit micro-control unit software struc...

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Abstract

The invention belongs to the field of electric screwdriver equipment, and particularly relates to a handheld electric screwdriver motor control device which comprises a main machine body, a control seat is mounted at the top end of the main machine body, a micro-control unit is mounted in the control seat, and a driving motor, a motor reduction gearbox and a battery piece are mounted in the main machine body. The motor reduction gearbox is connected with a screwdriver bit of the electric screwdriver, and an indicator lamp corresponding to the battery piece is installed on the control base. Different current protection values are set through the micro-control unit, overcurrent protection is carried out, and the current protection value of a traditional hardware circuit is fixed, so that the overcurrent protection circuit is more reliable and safer than the traditional hardware circuit; the full charge voltage and the maximum charge current of the battery piece are set through the micro-control unit, so that charging is safer than that of a traditional hardware circuit; charging prompt is carried out through the indicator lamp, and the working reliability of the motor control device and the whole electric screwdriver is improved.

Description

technical field [0001] The invention belongs to the field of electric screwdriver equipment, in particular to a hand-held electric screwdriver motor control device. Background technique [0002] Screwdrivers are used in industrial production and furniture life, such as the assembly of workpieces and furniture. With the development of motor technology, motors have become smaller, and people have begun to use electric screwdrivers to replace traditional manual screwdrivers. [0003] A Chinese patent with the publication number CN210406038U discloses a control box for an electric screwdriver. The controller of the electric screwdriver is assembled in the control box. The controller has a PCB board and circuit components for realizing the electrical performance of the controller; the control box includes a box The side wall of the box body is provided with air inlet and air outlet respectively; the box body is provided with a main heat dissipation channel and an auxiliary heat d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/00B25F5/00H02H3/08H02P7/03H02P29/00
CPCB25B21/00B25F5/00H02H3/08H02P7/03H02P29/00
Inventor 夏恩勇黄爱民
Owner 无锡东海智控软件有限公司
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