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Drive apparatus

A technology for driving devices and motors, applied in electromechanical devices, connected with control/drive circuits, electric components, etc., can solve problems such as inability to check the connection status of motor wires

Active Publication Date: 2016-04-06
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in such a case, it is not possible to visually check the connection status of the motor wires

Method used

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Experimental program
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Embodiment Construction

[0015] A drive device of an embodiment of the present disclosure will be described with reference to the drawings. The drive device of the present embodiment is applicable to, for example, an electric power steering system that assists a driver of a vehicle in steering operations and outputs steering assist torque.

[0016] will refer to figure 1 The overall structure of the driving device 1 will be described.

[0017] The drive device 1 includes a motor 30 and a controller 40 . The controller 40 controls energization of the motor 30 . The controller 40 is placed on one axial side of the motor 30, and the motor 30 and the controller 40 are integrated.

[0018] The motor 30 is, for example, a three-phase AC motor and includes a motor case 31 , a stator 32 , two winding sets (a first winding set and a second winding set) 33 and 34 , a rotor 35 and a shaft 36 . The two winding sets 33 and 34 respectively form two systems (two drive systems).

[0019] The motor case 31 is mad...

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PUM

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Abstract

A drive apparatus includes a controller, which has a circuit board and a plurality of connection terminals, and an electric motor, which includes a plurality of winding sets and a plurality of motor lines. Each of the winding sets includes a plurality of windings. Each motor lines has an insertion length that is a length of the motor line measured from a contact start part of the motor line, which first contacts a corresponding one of the connection terminals at a time of press fitting the motor line into the corresponding connection terminal, to a contacting part of the motor line, which is in contact with the corresponding connection terminal after the press fitting of the motor line into the corresponding connection terminal. The insertion lengths of the motor lines are grouped into at least two groups.

Description

technical field [0001] The present disclosure relates to a drive device that includes a motor and a controller that provides power to the motor. Background technique [0002] Press-fit connection technology that does not involve soldering is known as the method of connecting terminals to circuit boards. The press-fit connection is made by press-fitting the male terminal into the female terminal provided on the circuit board. In addition, the state of connection between the male terminal and the female terminal is checked by measuring the insertion load required to press-fit the male terminal into the female terminal to determine whether the male terminal is connected to the female terminal in a normal manner (see, for example, JPH08-330792A ). [0003] However, in the case where the male terminals are press-fitted together into the female terminals, the amount of change in the insertion load required to press-fit each of the male terminals into a corresponding one of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/50H02K11/33
CPCH01R12/57H02K11/30H02K5/225H02K3/28
Inventor 山崎雅志
Owner DENSO CORP