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Fastening structure of control board to metallic case

A technology for fastening structures and metal shells, applied in the directions of threaded fasteners, support structure installation, connecting components, etc., and can solve problems such as insufficient research on measures.

Inactive Publication Date: 2016-01-27
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since JP2001-332878A does not refer to the technique for fastening the control board to the PCU case which is placed directly on the transaxle, measures against vibration generated in the transaxle have not been sufficiently studied

Method used

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  • Fastening structure of control board to metallic case
  • Fastening structure of control board to metallic case
  • Fastening structure of control board to metallic case

Examples

Experimental program
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Embodiment Construction

[0025] In the following, reference will be made to Figures 1 to 6B Described is the fastening structure of the control board 34 of one embodiment of the present invention. First, refer to figure 1 The power control unit (PCU) 10 in which the control board 34 is arranged will be briefly described. figure 1 It is a graph showing the installation state of the PCU 10 in the electric vehicle.

[0026] The PCU 10 is a unit that is mounted on an electric vehicle such as a hybrid car and an electric car and incorporates an inverter and a boost / buck converter for controlling power supplied to or generated by the on-board motor generator. In this embodiment, the PCU 10 is placed directly on the housing (transaxle housing 102 ) of the transaxle 100 .

[0027] The transaxle 100 includes two motor generators MG1 and MG2 and a transmission mechanism TM that transmits the output of the power source (motor and engine) to the shaft. The motor generator MG and the transmission mechanism TM...

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PUM

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Abstract

A PCU is placed directly on an on-vehicle transaxle (100). A fastening structure for fastening a control board (34) to a PCU case (12) includes a nut (18) that is disposed on an inner surface of the PCU case (12) and in which a female screw (20) is provided; a bolt (22) that is disposed in a fixing hole (40) provided in the control board (34) and is screwed with the nut (18); and a washer (30) that is made of a viscoelastic material, intervenes between a head (25) of the bolt (22) and the control board (34), wherein the bolt (22) includes a male screw section (28) screwed to the female screw (20), an intermediate section (26), and a head (25).

Description

technical field [0001] The present invention relates to a fastening structure for fastening a control board to a metal case of a power control unit (hereinafter, referred to as "PCU"), which is directly mounted on a vehicle-mounted transaxle. Background technique [0002] Electric vehicles such as hybrid vehicles and electric vehicles are widely used. On such electric vehicles, a PCU incorporating an inverter and a boost / buck converter for controlling power supplied to a motor or generated by a generator is installed. In the PCU housing, the electronic components that provide the inverter and the boost / buck converter, such as reactors, capacitors, switching elements, control boards that control the driving of the switching elements are generally housed. [0003] Recently, it has been proposed to directly fix the PCU to the upper or side surface portion of the casing of the transaxle (eg, Japanese Patent Application Publication No. 2013-51848 (JP 2013-51848 A)). The transax...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/00B60K1/00
CPCB60Y2400/61H05K5/0056H05K7/1418H05K7/142F16B41/002F16B43/00H05K5/0204
Inventor 芝健史郎
Owner TOYOTA JIDOSHA KK