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Nuclear power plant manipulator and radiation-resistant two-phase stepper motor driver

A stepper motor and driver technology, applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problems of low control performance, lack of communication function, and limit the use of stepper drive systems, etc., to achieve improved Radiation resistance, saving circuit board area, light weight effect

Active Publication Date: 2018-10-26
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But correspondingly, compared with servo drivers, etc., the existing stepper motor drivers have low control performance, and the commercially available stepper drivers do not have communication functions, the above shortcomings greatly limit the use of stepper drive systems

Method used

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  • Nuclear power plant manipulator and radiation-resistant two-phase stepper motor driver
  • Nuclear power plant manipulator and radiation-resistant two-phase stepper motor driver
  • Nuclear power plant manipulator and radiation-resistant two-phase stepper motor driver

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 , The invention discloses a radiation-resistant two-phase stepping motor driver, the driver includes: a circuit board and electronic components. In this implementation case, the stepper motor driver and the stepper motor of the present invention form a drive system, which can be used to drive the mechanical arm working in the nuclear power plant (of course, the present invention can also be used in other fields).

[0049] The electronic components include a main control chip, a power supply part, a CAN bus transceiver, a current feedback part, and a double H-bridge MOSFET driving circuit; the power supply part, a CAN bus transceiver, a current feedback part, a double H-bridge MOSFET driving circuit and Different pins of the main control chip are connected.

[0050] The CAN bus transceiver is used as an information interface to realize the communication between the driver and the driver, and between the driver and the general controller; since the power act...

Embodiment 2

[0059] In this implementation case, the stepper motor driver and the stepper motor of the present invention form a drive system, which is used to drive the mechanical arm working in the nuclear power plant.

[0060] Such as figure 1 As shown, the present invention discloses a small radiation-resistant two-phase stepping motor driver, including a circuit board 103, electronic components 101, a tungsten-based alloy 102 for local shielding, and a neutron organic shielding layer 105 in a radiation-proof shell and heavy metal shielding layer 104.

[0061] Circuit components such as figure 2 As shown, its composition includes a control chip, a power supply part, a CAN bus transceiver, a current feedback part, and a double H-bridge MOSFET drive circuit. The power supply part, the CAN bus transceiver, the current feedback part and the double H-bridge MOSFET drive circuit are all connected to different pins of the control chip.

[0062] As an information interface, the CAN transcei...

Embodiment 3

[0072] A radiation-resistant two-phase stepping motor driver, the driver includes a circuit board, the circuit board is provided with electronic components; the electronic components in the driver are pasted with anti-radiation materials, and the entire circuit board is covered by a radiation-proof casing pack.

[0073] In addition, the main control chip is also connected with a radiation sensor; at least one side of the radiation-proof casing outside the circuit board is designed as an adjustable structure; the radiation-proof casing includes at least one adjustable surface, and the adjustable surface is connected to a driving mechanism. The driving mechanism is connected to the main control chip; the main control chip controls the driving mechanism through the main control chip according to the radiation intensity sensed by the radiation sensor, so as to control whether the radiation-proof shell is in an open state or a closed state.

[0074]In summary, the nuclear power pla...

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PUM

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Abstract

The invention discloses a nuclear power station mechanical arm and a radiation-resistant two-phase stepping motor driver. The driver comprises a circuit board provided with an electronic component; an antiradiation material is stuck to the electronic component in the driver, and the outer part of the whole circuit board is wrapped by an antiradiation shell. The driver also comprises a main control chip, a power supply part, a CAN bus transceiver, a current feedback part and a double H bridge MOSFET drive circuit; the power supply part, the CAN bus transceiver, the current feedback part and the double H bridge MOSFET drive circuit are connected with different pins of the main control chip. The nuclear power station mechanical arm and radiation-resistant two-phase stepping motor driver can effectively improve the radiation resistance of a device.

Description

technical field [0001] The invention belongs to the technical field of drivers, and relates to a motor driver, in particular to a radiation-resistant two-phase stepping motor driver. Background technique [0002] Among the currently available renewable energy sources, nuclear energy is one of the very few energy sources that have reached industrial applications and can replace fossil fuels on a large scale. However, the strong radiation environment in the nuclear power plant makes it impossible for the staff to work in it, and the remote control technology is an indispensable tool for the nuclear industry. Inevitably, a large number of components in the control system will be exposed to strong radiation, and the radiation resistance of electronic components often becomes a bottleneck. [0003] As a necessary system in remote control, the drive system's radiation resistance is very important. In order to ensure that the drive system can still work in a strong radiation envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 栾伟玲张晓霓韩延龙姜懿峰孙柯
Owner EAST CHINA UNIV OF SCI & TECH
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