Positive temperature coefficient device
A positive temperature coefficient and component technology, which is applied in the direction of resistors with positive temperature coefficients, electrical components, resistor parts, etc., can solve problems that affect welding and electrical characteristics, easy to break, and insufficient strength, so as to improve the product structure Strength, simple structure and manufacturing process, and the effect of improving manufacturing yield
Active Publication Date: 2021-02-23
POLYTRONICS TECH
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, because the electrode surfaces on both sides are not symmetrical and have front and back sides, it is troublesome to distinguish the front and back sides during subsequent electrical testing and packaging, and if the isolation line is produced due to the influence of material expansion and contraction, it will cause deviations between the left and right electrodes. Larger and smaller will affect welding and electrical characteristics
In addition, the component has no PP structural support, and there may be problems of insufficient strength and easy breakage during the manufacturing process
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0046] In order to make the above and other technical contents, features and advantages of the present invention more comprehensible, relevant embodiments are specifically listed below, together with the accompanying drawings, and are described in detail as follows.
[0047] figure 1 A schematic perspective view showing a positive temperature coefficient element according to an embodiment of the present invention, figure 2 is its exploded view. The positive temperature coefficient element 10 includes a first metal layer 11 , a first PTC material layer 12 , a laminated substrate 13 , a second PTC material layer 14 and a second metal layer 15 . The laminated substrate 13 includes a first conductive layer 131 , a second conductive layer 132 and an insulating layer 133 stacked between the first conductive layer 131 and the second conductive layer 132 . The first PTC material layer 12 is disposed on the surface of the first conductive layer 131 . The second PTC material layer 1...
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
| Property | Measurement | Unit |
|---|---|---|
| glass transition temperature | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| width | aaaaa | aaaaa |
Login to View More
Abstract
A PTC (positive temperature coefficient) device comprises a laminated substrate, a first PTC material layer, a second PTC material layer, a first metal layer and a second metal layer. The laminated substrate comprises a first conductive layer, a second conductive layer and an insulating layer laminated between the first and second conductive layers. The first PTC material layer is disposed on thefirst conductive layer, and the second PTC material layer is disposed on the second conductive layer. The first metal layer is disposed on the first PTC material layer, and the second metal layer is disposed on the second PTC material layer. The insulating layer has a through hole filled with PTC material to form a PTC connecting member of which one end connects to the first PTC material layer andanother end connects to the second PTC material layer.
Description
technical field [0001] The invention relates to a thermistor, in particular to a positive temperature coefficient (Positive Temperature Coefficient; PTC) element. Background technique [0002] PTC elements can be used to protect circuits from damage due to overheating or excessive current flow. A positive temperature coefficient device usually includes two electrodes and a resistive material between the two electrodes. This resistance material has a positive temperature coefficient characteristic, that is, it has a low resistance value at room temperature, and when the temperature rises to a critical temperature or an excessive current is generated in the circuit, its resistance value can immediately jump hundreds or thousands of times or more , so as to inhibit the passage of excessive current to achieve the purpose of circuit protection; or applied to the over-temperature detection circuit, which can detect the ambient temperature in advance to instruct the back-end circu...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01C7/02
CPCH01C7/021H01C7/028H01C1/1406H01C7/027
Inventor 曾郡腾张耀德利文峰
Owner POLYTRONICS TECH