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Anti-interference and overvoltage, overcurrent protection chip component and its manufacturing method

An overcurrent protection, chip technology, applied in the direction of overvoltage protection resistors, resistance manufacturing, electrical components, etc., can solve problems such as fire, neglect of control circuit short circuit protection, and difficulty in selecting matching filter components

Active Publication Date: 2015-10-28
GUANGDONG FENGHUA ADVANCED TECH HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the selection of filter components has the disadvantages of using a large number of discrete capacitive and inductive components, high cost, and large installation space
And it is difficult to choose a suitable and complete set of filter components
[0005] At the same time, in the actual use of the motor, the short-circuit protection of the control circuit is often ignored
In actual use, some motors are protected by a single fuse, and some even do not install a fuse, which will seriously affect the safety of the motor
When the motor load is too large or the blockage does not turn and the current of the power circuit is too large, it will cause damage to the control circuit and cause a fire.

Method used

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  • Anti-interference and overvoltage, overcurrent protection chip component and its manufacturing method
  • Anti-interference and overvoltage, overcurrent protection chip component and its manufacturing method
  • Anti-interference and overvoltage, overcurrent protection chip component and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The preparation method of the above-mentioned anti-interference and overvoltage and overcurrent protection chip component includes the following steps:

[0074] 1. Put TiO 2 , SrCO 3 、BaCO 3 , CaCO 3 , CuO, Nb 2 o 5 、La 2 o 3 and MnCO 3 Mix together and ball mill and dry to make porcelain powder for making strontium titanate ceramic substrate. Among them, the porcelain powder for manufacturing the strontium titanate ceramic substrate is respectively: 30% TiO by mass fraction 2 , 32% SrCO 3 , 16% BaCO 3 , 20% CaCO 3 , 0.5% CuO, 0.5% Nb 2 o 5 , 0.1% La 2 o 3 , 0.9% MnCO 3 . Then dry-press the porcelain powder for manufacturing the strontium titanate ceramic substrate to make a green sheet.

[0075] 2. Dry the blank at 800°C±10°C for 30±2 hours.

[0076] 3. Under the protection of an atmosphere with a mass ratio of hydrogen and nitrogen of 0.5 to 8, the semiconductor ceramic substrate is sintered at a sintering temperature of 1260°C±10°C.

[0077] 4. He...

Embodiment 2

[0092] The preparation method of the above-mentioned anti-interference and overvoltage and overcurrent protection chip component includes the following steps:

[0093] 1. Put TiO 2 , SrCO 3 、BaCO 3 , CaCO 3 , CuO, Nb 2 o 5 、La 2 o 3 and MnCO 3 Mix together and ball mill and dry to make porcelain powder for making strontium titanate ceramic substrate. Among them, the porcelain powder for manufacturing the strontium titanate ceramic substrate is respectively: 42% TiO by mass fraction 2 , 18.4% SrCO 3 , 20% BaCO 3 , 18% CaCO 3 , 0.3% CuO, 0.1% Nb 2 o 5 , 0.2% La 2 o 3 , 1.0% MnCO 3 . Then dry-press the porcelain powder for manufacturing the strontium titanate ceramic substrate to make a green sheet.

[0094] 2. Dry the green sheet at 1000°C±10°C for 25±2 hours.

[0095] 3. Under the protection of an atmosphere with a mass ratio of hydrogen and nitrogen of 0.65 to 9, the semiconductor ceramic substrate is sintered at a sintering temperature of 1260°C±10°C.

[0...

Embodiment 3

[0111] The preparation method of the above-mentioned anti-interference and overvoltage and overcurrent protection chip component includes the following steps:

[0112] 1. Put TiO 2 , SrCO 3 、BaCO 3 , CaCO 3 , CuO, Nb 2 o 5 , La 2 o 3 and MnCO 3 Mix together and ball mill and dry to make porcelain powder for making strontium titanate ceramic substrate. Among them, the ceramic powder for manufacturing the strontium titanate ceramic substrate is respectively: 55% TiO by mass fraction 2 , 16% SrCO 3 , 12% BaCO 3 , 16% CaCO 3 , 0.4% CuO, 0.2% Nb 2 o 5 , 0.1% La 2 o 3 , 0.3% MnCO 3 . Then dry-press the porcelain powder for manufacturing the strontium titanate ceramic substrate to make a green sheet.

[0113] 2. Dry the green sheet at 1200°C±10°C for 20±2 hours.

[0114] 3. Under the protection of an atmosphere with a mass ratio of hydrogen and nitrogen of 0.8 to 10, the semiconductor ceramic substrate is sintered at a sintering temperature of 1260°C±10°C.

[0115...

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Abstract

The invention provides an anti-jamming and overvoltage and overcurrent protection sheet type component and a manufacturing method thereof. The anti-jamming and overvoltage and overcurrent protection sheet type component comprises a strontium titanate ceramic substrate, a front surface electrode, a back surface electrode, a fuse link metal layer, a protective layer and end electrodes, wherein the front surface electrode and the back surface electrode are formed on the front surface and the back surface of the strontium titanate ceramic substrate respectively; the fuse link metal layer is formed on the front surface of the strontium titanate ceramic substrate; the protective layer is formed on the fuse link metal layer; and the end electrodes are formed on four side surfaces of the strontium titanate ceramic substrate. According to the anti-jamming and overvoltage and overcurrent protection sheet type component, the fuse link metal layer and the electrodes are formed on the strontium titanate ceramic substrate, and the functions of a plurality of discrete components are integrated on one component, so that the anti-jamming and overvoltage and overcurrent protection functions are achieved, and the anti-jamming and overvoltage and overcurrent protection sheet type component has the advantages of multiple functions and miniaturization.

Description

technical field [0001] The invention relates to a chip electric component, in particular to an anti-interference and overvoltage, overcurrent protection chip component and a manufacturing method thereof. Background technique [0002] Small permanent magnet DC motors, especially those with brushes, will generate a lot of electrical noise due to electromagnetic interference in the environment during normal operation. Electrical noise interference propagates along the cable in the form of interference voltage, and couples to the power supply circuit and other functional circuit networks, thereby affecting the power supply quality of the power grid and the surrounding electromagnetic environment. [0003] In order to limit the interference of the motor conducted to the power grid through the power line or to meet the requirements of the electromagnetic compatibility standard, these conducted electrical noises must be dealt with. A common solution is to add filtering components ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C1/16H01C1/142H01C7/12H01C7/13H01C17/30
Inventor 张振勇邓佩佳林海
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG