POWER CONVERSION DEVICE
First Claim
1. A power conversion device comprising:
- a capacitor module which smooths a DC current from a DC power source;
a power module which converts the DC current into an AC current on the basis of a drive signal from a drive circuit;
a circuit board on which a control circuit which outputs a control signal for generating the drive signal is mounted and which has a ground layer formed in a control circuit mounting region;
a noise shielding plate which shields noise from the power module; and
a metal housing in which the capacitor module and the power module are contained side by side, the circuit board is contained above the capacitor module, and the noise shielding plate is contained at a position which faces the control circuit mounting region between the circuit board and the capacitor module,wherein the noise shielding plate has a plurality of connection parts to be electrically connected to the metal housing, anda first end part on the power module side of the noise shielding plate is provided on the power module side more than a second end part on the power module side of the ground layer and the connection part which is the closest to the first end part among the plurality of connection parts is provided on the power module side more than the second end part, in planar view viewed from above a containing part of the metal housing.
2 Assignments
0 Petitions
Accused Products
Abstract
A power conversion device possesses a capacitor module, a power module, a circuit board on which a control circuit is mounted and which has a ground layer formed in a control circuit mounting region, a noise shielding plate, and a metal housing. The circuit board is above the capacitor module, and the noise shielding plate faces the control circuit mounting region between the circuit board and the capacitor module, in which the noise shielding plate has a plurality of connection parts to be electrically connected to the metal housing. A first end part on the power module side of the noise shielding plate is on the power module side more than a second end part on the power module side of the ground layer, and the connection part which is the closest to the first end part is provided on the power module side more than the second end part.
13 Citations
3 Claims
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1. A power conversion device comprising:
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a capacitor module which smooths a DC current from a DC power source; a power module which converts the DC current into an AC current on the basis of a drive signal from a drive circuit; a circuit board on which a control circuit which outputs a control signal for generating the drive signal is mounted and which has a ground layer formed in a control circuit mounting region; a noise shielding plate which shields noise from the power module; and a metal housing in which the capacitor module and the power module are contained side by side, the circuit board is contained above the capacitor module, and the noise shielding plate is contained at a position which faces the control circuit mounting region between the circuit board and the capacitor module, wherein the noise shielding plate has a plurality of connection parts to be electrically connected to the metal housing, and a first end part on the power module side of the noise shielding plate is provided on the power module side more than a second end part on the power module side of the ground layer and the connection part which is the closest to the first end part among the plurality of connection parts is provided on the power module side more than the second end part, in planar view viewed from above a containing part of the metal housing. - View Dependent Claims (2, 3)
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Specification