Check patentability & draft patents in minutes with Patsnap Eureka AI!

Drive control device, drive device and power steering device

A technology of drive board and drive circuit, which is applied in the direction of AC motor control, control system, electromechanical device, etc., and can solve the problems of large-scale drive control devices and large-scale substrates, etc.

Inactive Publication Date: 2020-02-11
NIDEC CORP
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A normal power cut-off circuit with such a high-speed cut-off capability generates heat when it is turned on. Therefore, when the power cut-off circuit is arranged on a circuit board for driving or controlling a motor, a large substrate area is required for heat dissipation. This may result in an increase in the size of the substrate, which in turn may lead to an increase in the size of the drive control device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drive control device, drive device and power steering device
  • Drive control device, drive device and power steering device
  • Drive control device, drive device and power steering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, embodiments of a drive control device, a drive device, and a power steering device according to the present invention will be described in detail with reference to the drawings. However, in order to avoid unnecessarily lengthy descriptions below and to facilitate understanding by those skilled in the art, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known items and repeated descriptions of substantially the same configurations may be omitted.

[0028] In this specification, a drive control device that supplies power to a three-phase motor having three-phase (U-phase, V-phase, W-phase) windings (sometimes expressed as "coils") and performs drive control is taken as an example, and the description of the present invention Embodiments will be described. However, a drive control device that supplies electric power to and controls drive of an n-phase motor having four-phase or five-phase n-phase windings (n is an ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A drive control device, a drive device and a power steering device are provided. The invention provides a drive control device, a drive device and a power steering device which are provided with a power cutoff circuit and which contribute to the miniaturization of the device. A driving control device is provided with a driving board on which a driving circuit for supplying power to a motor is mounted; a connector which is connected to an external power line and supplies power to the driving circuit; a conductive member which conducts electric power from the connector to the driving board; anda power interruption circuit which receives a cutoff signal for instructing interruption of power and cuts off the power. The power cutoff circuit is connected or incorporated into at least one of theconnector and the conductive member.

Description

technical field [0001] The invention relates to a driving control device, a driving device and a power steering device. Background technique [0002] Conventionally, a drive control device for controlling the drive of a motor is known to have a power cutoff circuit (including a circuit composed of one element. The same applies hereinafter). [0003] For example, Patent Document 1 discloses a structure in which a power supply cutoff circuit is mounted on a power module. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2015-116095 [0005] For example, in the drive control of a motor in a power steering device or the like, a power cutoff circuit for quickly disconnecting a drive circuit from a power supply is required in an emergency. A normal power cut-off circuit with such a high-speed cut-off capability generates heat when it is turned on. Therefore, when the power cut-off circuit is arranged on a circuit board for driving or controlling a motor, a large substrat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02H7/08H02K11/00H02K11/33H02P27/06
CPCH02H7/08H02K11/0094H02K11/33H02P27/06
Inventor 北村高志锅师香织
Owner NIDEC CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com