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Inverter unit for vehicle

A technology for inverters and vehicles, applied in vehicle components, vehicle energy storage, electric vehicles, etc., can solve the problems of increasing vehicle size, manufacturing cost, and large volume

Inactive Publication Date: 2006-09-20
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when each group is independent and the inverter circuit is connected to the capacitor with the shortest distance, the volume required for such multiple groups is large in the prior art, which increases the size and manufacturing cost of the vehicle

Method used

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  • Inverter unit for vehicle
  • Inverter unit for vehicle
  • Inverter unit for vehicle

Examples

Experimental program
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Embodiment Construction

[0023] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Although in the following explanation it is assumed that an inverter unit for a vehicle is constituted by two inverter circuit modules and one capacitor module, more than two inverter circuit modules may be provided. For example, in addition to the main inverter circuit module to be used to drive power to and generate electricity from the front-wheel drive vehicle and the sub-inverter circuit module to be used to drive power to the rear-wheel drive vehicle, An inverter circuit module (on which a voltage is applied, etc.) for an air conditioner or the like can be connected to the on-vehicle inverter unit. In addition, the installation position of each external terminal will be described below with an illustrated example, and other positions may be used as long as the inverter circuit module can be connected to the capacitor module.

[0024] figure 1 is a ...

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PUM

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Abstract

An inverter unit for vehicle ( 20 ) is formed in such a manner that a capacitor module ( 40 ) is stacked on the upper portions of a main inverter circuit module ( 32 ) and a sub inverter circuit module ( 34 ) so as to connect the corresponding external terminals by a bolt ( 66 ). Here, by matching a positive electrode terminal ( 44 ) and a negative electrode terminal ( 46 ) of the capacitor module ( 40 ) with a positive side electrode terminal ( 45 ) and a negative side electrode terminal ( 47 ) of the main inverter circuit module ( 32 ), and at the same time by matching a positive electrode terminal ( 48 ) and a negative electrode terminal ( 50 ) of the capacitor module ( 40 ) with a positive side electrode terminal ( 49 ) and a negative side electrode terminal ( 51 ) of the sub inverter circuit module ( 34 ), responsible terminals are connected with this bolt ( 66 ) each other.

Description

technical field [0001] The present invention relates to an inverter unit for a vehicle, and in particular, the present invention relates to an inverter unit for a vehicle including an inverter circuit module and a smoothing capacitor. Background technique [0002] A vehicle having a motor / generator such as a hybrid vehicle is generally equipped with a power control unit (PCU) including an inverter circuit. Such a PCU includes a DC power source such as a storage battery, an inverter circuit for DC / AC conversion, a smoothing capacitor for suppressing fluctuations in the DC power source, and a step-up converter provided as required or desired. In many cases, these components are connected by connecting wires, so-called bus bars. [0003] In order to effectively suppress the surge voltage generated when switching the switching elements in the inverter circuit, it is desirable to suppress the impedance due to the connection between the smoothing capacitor and the inverter circui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00B60L15/02H02M7/48
CPCH02M7/003H02P2201/09Y02T10/642B60L11/18Y02T10/7005B60L50/50Y02T10/64Y02T10/70
Inventor 新村修上地辰之
Owner TOYOTA JIDOSHA KK