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Signal transmission device and cooling device

A technology of signal transmission and cooling device, applied in cooling/ventilation/heating renovation, electrical components, electrical equipment structural parts, etc., can solve problems such as misoperation of communication LSIs

Inactive Publication Date: 2016-02-10
HITACHI METALS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Furthermore, since many communication LSIs process high-speed signals, their temperatures become extremely high during operation, which causes malfunctions of the communication LSIs.

Method used

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  • Signal transmission device and cooling device
  • Signal transmission device and cooling device
  • Signal transmission device and cooling device

Examples

Experimental program
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Embodiment Construction

[0036] Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

[0037] figure 1 is a front view representing the Ethernet switch of the present invention, figure 2 is a rear view representing the Ethernet switch of the present invention, image 3 It is to illustrate the flow of cooling air in the box figure 1 A-direction view, Figure 4 It is a plan view showing the detailed structure of the line card housed in the box.

[0038] Such as Figure 1 to Figure 3 As shown, the Ethernet switch 10 accommodates a total of ten line cards 30 , and controls these line cards 30 in cooperation with each other. The Ethernet switch 10 includes a substantially rectangular parallelepiped box 11 having a front wall 12 , a back wall 13 , a pair of side walls 14 , a top wall 15 , and a bottom wall 16 .

[0039] Such as figure 1As shown, an insertion opening 17 for accommodating the line card 30 in the case 11 is formed on the front wall 12 . ...

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PUM

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Abstract

The heat generating elements are more effectively cooled by improving a heat radiating property of the heat generating elements provided so as to be adjacent to each other. An extending direction of fins of a second heat sink corresponding to a second communication-use LSI is made to intersect with an extending direction of fins of a third heat sink corresponding to a third communication-use LSI. Thus, a cooling air that has passed through the second heat sink is prevented from passing through the third heat sink. Therefore, a cooling air that is not warmed can be supplied to both of the second heat sink and the third heat sink. Thus, each heat radiating property of the second and third communication-use LSIs provided so as to be adjacent to each other can be improved. As a result, both of the second and third communication-use LSIs can be efficiently cooled.

Description

technical field [0001] The present invention relates to a signal transmission device equipped with a heating element mounted on a substrate and a heat sink for cooling the heating element, a signal transmission device and a box for accommodating the signal transmission device, and introducing external air into the box and dissipating heat from the signal transmission device. The cooling device of the cooling mechanism discharged from the outside of the box. Background technique [0002] Conventionally, Ethernet (registered trademark) (Ethernet (registered trademark)) exists as one of communication methods capable of efficiently communicating with each other between a plurality of computers connected by a LAN (Local Area Network). Furthermore, a communication carrier (carrier) owns a plurality of Ethernet switches (switching hubs) in order to construct a complex Ethernet. This Ethernet switch includes a plurality of line cards (expansion cards) constituted by substrates on w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
CPCH05K7/20563H05K7/20727
Inventor 神谷旭人
Owner HITACHI METALS LTD