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Heat-resistant communication transformer and fabrication method thereof

A manufacturing method and technology for transformers, which are applied in the directions of inductor/transformer/magnet manufacturing, transformer/inductor housing, transformer/inductor cooling, etc., can solve the problems of existing technologies such as no heat-resistant communication transformers, and achieve comprehensive mechanism performance. Excellent, small temperature effect, long service life

Inactive Publication Date: 2017-02-22
宁波华众和创工业设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Among the relevant patents that have been applied for in China, there is no prior art on heat-resistant communication transformers

Method used

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  • Heat-resistant communication transformer and fabrication method thereof

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Effect test

Embodiment 1

[0034] A heat-resistant communication transformer, including a skeleton, a winding 4, a magnetic core 3, a shielding cover 1, and a packaging material; a special molybdenum permal magnetic core 3 is applied, a ceramic skeleton 2 is applied, and an aluminum alloy shielding cover 1 is applied; Among them, the molybdenum Permal magnetic core 3 is sealed in the ceramic skeleton 2 by epoxy resin; the aluminum alloy shielding cover 1 covers the part of the whole transformer except the shielding cover 1, adopts a fully enclosed structure, and the aluminum alloy shielding cover 1 Ventilation slots 5 with a width of 1 mm are also provided every 5 mm.

[0035] The manufacturing method of the heat-resistant communication transformer comprises the following steps:

[0036] 1) Selection and preparation of various components

[0037] ① The skeleton is selected from the aluminum nitride-based ceramic skeleton 2 that matches the Japanese-shaped magnetic core 3, and the selection standard of ...

Embodiment 2

[0060] A heat-resistant communication transformer, including a skeleton, a winding 4, a magnetic core 3, a shielding cover 1, and a packaging material; a special molybdenum permal magnetic core 3 is applied, a ceramic skeleton 2 is applied, and an aluminum alloy shielding cover 1 is applied; Among them, the molybdenum Permal magnetic core 3 is sealed in the ceramic skeleton 2 by epoxy resin; the aluminum alloy shielding cover 1 covers the part of the entire transformer except the shielding cover 1, and adopts a fully enclosed structure. Ventilation slots 5 with a width of 2 mm are also provided every 5 mm.

[0061] The manufacturing method of the heat-resistant communication transformer comprises the following steps:

[0062] 1) Selection and preparation of various components

[0063] ① The skeleton is selected from the aluminum nitride-based ceramic skeleton 2 that matches the Japanese-shaped magnetic core 3, and the selection standard of the aluminum nitride-based ceramic i...

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Abstract

The invention discloses a heat-resistant communication transformer and a fabrication method thereof. The heat-resistant communication transformer at least can bear a working temperature not less than 180 DEG C for a long time, and the electromagnetic shielding of the heat-resistant communication transformer is at least grade A. A high-stability molybdenum magnetic core (3) is obtained by controlling forming and fixing of the molybdenum magnetic core (3) and performing multiple circular processes of impact, stress removal, deformation, shape correction and stress removal, and the heat resistance of the communication transformer disclosed by the invention is improved by employing an aluminum nitride-based ceramic framework (2) with excellent electromagnetic performance and a fully-enclosed aluminum alloy shielding cover (1) and forming a ventilation hole in the aluminum alloy shielding cover (1) in a reasonable mode. The heat-resistant communication transformer disclosed by the invention is resistant to high temperature, has a good electromagnetic shielding effect and is long in service lifetime.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to a heat-resistant communication transformer and a manufacturing method thereof. Background technique [0002] Communication transformers are transformers used to adjust the quality and status of communication circuits in telephone terminal circuits and trunk product lines. Communication transformer products are widely used in cable modems, network cards, hubs, xDSL broadband communication equipment, switches, fiber optic transceivers, routers, embedded systems and VolP and other network communication equipment, data communication equipment, photoelectric transmission equipment, access network equipment, Power line Internet equipment, voice equipment, etc. [0003] Among the relevant patents that have been applied for in China, there is no prior art about heat-resistant communication transformers. Contents of the invention [0004] The invention aims to provide a heat-resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/08H01F27/02H01F27/25H01F27/30H01F27/36H01F1/147H01F41/02
CPCH01F27/306H01F1/14716H01F27/025H01F27/25H01F27/36H01F41/0213
Inventor 何琳
Owner 宁波华众和创工业设计有限公司
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