Metal-based print board formed with radiators
First Claim
1. A metal-based print board formed with radiators, comprising:
- a thermally conductive metal plate having a prescribed plate thickness;
a metallic foil affixed to a first surface of the metal plate with an adhesive layer interposed therebetween; and
a radiator integrally formed on a second surface of the metal plate that is on an opposite side of the first surface, whereinthe radiator has a plurality of tabular radiating fins, formed upright on the second surface of the metal plate at prescribed intervals by using an excavating tool to dig into the second surface;
each of the radiating fins gradually decreases in thickness from a base end portion connected to the second surface towards a distal end, and curves from the base end portion to the distal end;
a spacing between adjacent radiating fins gradually increases from the base end portion towards the distal end; and
the metal plate is configured so that a thickness is smaller in a first metal plate portion between each of the radiating fins of the radiator than in a second metal plate portion of the metal plate excluding the radiator.
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Accused Products
Abstract
In a metal-based print board formed with radiators, a metal foil is affixed to a front surface of a metal plate having good thermal conductivity, an insulating adhesive layer interposed therebetween. A radiator is integrally provided on a reverse surface of the metal plate, the radiator having a plurality of thin radiating fins formed upright in a tabular shape due to having been dug out by an excavating tool. The radiating fins give the radiator a large area over which heat can be released. The thickness of a first metal plate portion formed between adjacent radiating fins is less than the original thickness of the metal plate. Heat generated by an electronic component or another component provided on a side of the front surface of the metal plate is rapidly transmitted from the reduced-thickness first metal plate portion of the metal plate to each of the radiating fins of the radiator on the reverse surface side, and efficiently released from each of the radiating fins, which have a large area over which heat is radiated.
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Citations
8 Claims
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1. A metal-based print board formed with radiators, comprising:
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a thermally conductive metal plate having a prescribed plate thickness; a metallic foil affixed to a first surface of the metal plate with an adhesive layer interposed therebetween; and a radiator integrally formed on a second surface of the metal plate that is on an opposite side of the first surface, wherein the radiator has a plurality of tabular radiating fins, formed upright on the second surface of the metal plate at prescribed intervals by using an excavating tool to dig into the second surface; each of the radiating fins gradually decreases in thickness from a base end portion connected to the second surface towards a distal end, and curves from the base end portion to the distal end; a spacing between adjacent radiating fins gradually increases from the base end portion towards the distal end; and the metal plate is configured so that a thickness is smaller in a first metal plate portion between each of the radiating fins of the radiator than in a second metal plate portion of the metal plate excluding the radiator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification