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

overcurrent protection element

A technology for protecting components and overcurrent, applied to electrical components, current-responsive resistors, circuits, etc., to improve production yield and efficiency, reduce production costs, and simplify production

Inactive Publication Date: 2017-04-12
POLYTRONICS TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the bimetal sheet has been widely used as a circuit breaker, because the bimetal must be made by precision machinery, it requires quite precise manufacturing capabilities.

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
  • overcurrent protection element
  • overcurrent protection element
  • overcurrent protection element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] In order to make the above and other technical content, features and advantages of the present invention more comprehensible, the following specifically cites relevant embodiments, together with the accompanying drawings, for a detailed description as follows.

[0050] figure 2 Showing the overcurrent protection element 10 of the first embodiment of the present invention, image 3 for figure 2Schematic diagram of the cross-sectional structure along section line 1-1. In terms of structure, the overcurrent protection device 10 of this embodiment is substantially a strip-shaped structure having an upper surface, a lower surface and four side surfaces. The overcurrent protection element 10 includes a PTC element 11, a first electrode 17, a second electrode 18, insulating layers 15 and 16, a first conductive connector 19, a second conductive connector 20, and welding metal sheets 31, 32, 33 and 34 . The PTC element 11 includes a first conductive layer 13 , a second con...

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

An over-current protection device comprises a PTC device, first and second electrodes, a first welding metal plate and a second welding metal plate. The PTC device comprises a first conductive layer, at second conductive layer and a PTC polymeric material layer laminated therebetween. The first electrode electrically connects to the first conductive layer. The second electrode electrically connects to the second conductive layer and is separated from the first electrode. The first welding metal plate is formed on an upper surface of the device and connects to the first electrode. The second welding metal plate is formed on the upper surface or a lower surface of the device and connects to the second electrode. The first and second welding metal plates are placed at two opposite ends of the strip-like structure, and each of them has a thickness sufficient to withstand spot-welding without significant resultant damage to the PTC device.

Description

technical field [0001] The present invention relates to an overcurrent protection element, especially an overcurrent protection element with a positive temperature coefficient (Positive Temperature Coefficient; PTC) characteristic, which can be used to replace a traditional circuit breaker. Background technique [0002] The recent rapid expansion of the market for ultra-thin portable electronic products has brought about the demand for light, thin and large-capacity batteries. The batteries are designed to meet the requirements of high voltage and large capacity. The core is achieved by a series-parallel design. In terms of over-current and over-temperature protection, in order to provide individual battery protection, the current design uses a circuit breaker temperature switch as over-current and over-temperature protection. [0003] A common overcurrent circuit breaker is designed with a bimetallic strip inside, and the bimetallic strip constitutes a normally closed micr...

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 Patents(China)
IPC IPC(8): H01C7/02H01C7/13
CPCH01C7/021
Inventor 曾郡腾陈正祥李品萱苏启仁
Owner POLYTRONICS TECH