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Load drive device

A load driving and motor technology, applied in circuit devices, electromechanical devices, circuit thermal devices, etc., can solve problems such as controller failure and failure, and achieve the effect of preventing device failure and improving heat radiation performance.

Active Publication Date: 2019-05-07
OMRON AUTOMOTIVE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Heat generated by hot electronic components may cause malfunction or failure in the controller

Method used

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Embodiment Construction

[0038] In embodiments of the present invention, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail in order not to obscure the invention.

[0039] Hereinafter, one or more embodiments of the present invention will be described with reference to the accompanying drawings. In each drawing, like reference numerals will be given to corresponding like element(s).

[0040] First, refer to figure 1 The electrical configuration of the load driving device 100 according to the embodiment of the present invention is described.

[0041] figure 1 is a circuit diagram showing the electrical configuration of the load driving device 100 . The load driving device 100 is configured to include a controller 10 and a motor 20, and both are...

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Abstract

A board of a controller of a load drive device includes: wiring layers provided on front and rear surfaces and inside thereof and ground layers provided inside thereof. Each wiring layer is divided into: a first region in which a drive circuit is provided; and a second region in which a control circuit is provided. A first ground layer including a first ground pattern for a circuit which is electrically connected to a wiring pattern of each wiring layer is divided into: a third region which overlaps with the first region in a thickness direction, and in which the first ground pattern for a power system electrically connected to the drive circuit is provided, and a fourth region which overlaps with the second region in the thickness direction, and in which the first ground pattern for a control system electrically connected to the control circuit is provided.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority from Japanese Patent Application No. 2017-207793 filed on October 27, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] One or more embodiments of the present invention relate to a structure of a load driving device in which a motor and a controller are integrated with each other. Background technique [0004] For example, as disclosed in JP-A-2015-60756 and JP-A-2016-34202, an electric power steering system mounted on a vehicle such as an automobile includes a load driving device in which an electric motor for assisting the steering operation of the steering wheel and the controller for controlling the motor are integrated with each other. A load drive unit integrated with an electric motor includes: a board on which are mounted circuits and electronic components for driving and controlling the motor; input / output connect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04H02K11/00H02K11/33H02P27/06H05K7/20
CPCH02K2211/03H02K11/33B62D5/0406H02P27/06H05K2201/09663H05K1/0227H05K2201/10166H05K1/0206H05K1/0215H05K2201/10409H05K2201/10151H05K2201/09972H02P6/16H05K1/181H05K5/0047H05K5/0069
Inventor 冈村彰夫砥川真一
Owner OMRON AUTOMOTIVE ELECTRONICS CO LTD