Unlock instant, AI-driven research and patent intelligence for your innovation.

PTC device,PTC device manufacturing method and electric device provided with PTC device

A device and electrical technology, applied in the field of PTC devices, can solve the problem of laborious masking work

Inactive Publication Date: 2011-01-19
TYCO ELECTRONICS JAPAN GK
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of the PTC element is very small, such as 0.40mm, in order to leave such a small side surface, the masking work is very laborious

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • PTC device,PTC device manufacturing method and electric device provided with PTC device
  • PTC device,PTC device manufacturing method and electric device provided with PTC device
  • PTC device,PTC device manufacturing method and electric device provided with PTC device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. figure 1 A PTC device 10 according to the invention is shown, schematically showing a top view ( figure 1 (a)) and a sectional view along the A-A' line of the top view ( figure 1 (b)). The PTC device 10 includes a PTC part 12 and a first lead 14 provided on the upper surface of the PTC part 12 and a second lead 16 on the lower surface. The PTC member 12 is composed of a first metal electrode forming its upper surface, a second metal electrode 20 forming its lower surface, and a PTC element 18 sandwiched between the first and second metal electrodes.

[0064] The portion of the first metal electrode of the PTC member 12 that is not covered by the first wire 14, the thickness portion of the first wire, and the side portion of the PTC member 12 (these are in figure 1 Shown in (b) as area S) is covered by a resin coating 50 formed by a hardened hardened resin. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a PTC device reduced in sizes. The PTC device is provided with a first lead (14), which is electrically connected to a first metal electrode (18) of a PTC element (12), and a second lead (16), which is electrically connected to a second metal electrode (20) of the PTC element. The first lead has a cover region which covers at least a part of the first metal electrode of the PTC element, and the second lead is provided with a first region (24), which covers the bottom surface section of the PTC element, and a second region (26), which extends outward from the periphery of the first region. The second region constitutes a connecting region (38) on the peripheral section or end section. A gap section (60) exists between the first region and the connecting region, and the second lead is connected to the second metal electrode such that the first region covers the bottom surface section of the PTC element, and at least a side surface of the PTC element is coated with a resin coating (50).

Description

technical field [0001] The present invention relates to a PTC device, in particular to a polymer PTC device used as a circuit protection device, and electrical or electronic equipment including the device. More particularly, the present invention relates to a PTC device using a PTC element comprising a polymer PTC element containing a metal filler as a conductive filler, especially one that is easily removed in an oxygen atmosphere. Oxidized filler. Furthermore, the present invention relates to a method of manufacturing the polymer PTC device. Background technique [0002] Polymer PTC (Positive Temperature Coefficient) devices are widely used as circuit protection devices in various electrical or electronic equipment to prevent failure of important components constituting the equipment, if excessive current flows through the circuit, etc. Such elements are known per se and typically comprise PTC elements, usually in layered form, and comprising a polymer composition in whi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01C7/02H01M50/147
CPCH01C17/02H01M2/0404H01C1/1406H01M2200/106H01C7/02Y10T29/49082Y02E60/10H01M50/147
Inventor 小山洋幸
Owner TYCO ELECTRONICS JAPAN GK