Moulding mould for thermistors and method for manufacturing thermistors

A technology for molding molds and thermistors, which is applied in the direction of manufacturing tools, ceramic molding machines, and resistors at the lead-out end, which can solve problems such as inconsistent resistance values, low precision, and inconsistent bead shapes, and achieve consistent resistance values ​​and high precision. High, improve the effect of work efficiency

Active Publication Date: 2010-08-25
SHENZHEN AMPRON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the embodiments of the present invention is to provide a molding die for a thermistor, which aims to solve the problems of inconsistency in the shape of the beads when molding the current bead-shaped NTC thermistor, resulting in inconsistent resistance values ​​and low precision.

Method used

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  • Moulding mould for thermistors and method for manufacturing thermistors
  • Moulding mould for thermistors and method for manufacturing thermistors
  • Moulding mould for thermistors and method for manufacturing thermistors

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] In the embodiment of the present invention, the thermistor molding and lead wire embedding are completed at the same time by using a precision mold, which significantly improves work efficiency, and makes the bead shape of the manufactured thermistor consistent, so the resistance value is consistent and the precision is high.

[0033] Fig. 4 shows the structure of the upper die of the molding die provided by the embodiment of the present invention, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0034] Referring to Fig. 4...

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Abstract

The invention is suitable for the field of manufacture of miniature precision sensors, and provides a moulding mould for thermistors and a method for manufacturing the thermistors. The mould comprises an upper mould and a lower mould, wherein the upper mould is provided with a plurality of upper groove bodies arranged linearly; two parallel upper slots penetrate each upper groove body; the lower mould is provided with lower groove bodies and lower slots which are correspondingly matched with the upper groove bodies and upper slots of the upper mould respectively; and the upper and lower moulds are also provided with positioning parts capable of making the upper and lower moulds embedded. In the invention, the forming of the thermistors and the embedding of leads are finished simultaneously by the precision mould, so the work efficiency is obviously improved; and the manufactured thermistors have consistent beads, so the thermistors have consistent resistance value and high precision.

Description

technical field [0001] The invention belongs to the manufacturing field of miniature precision sensors, and in particular relates to a molding die of a thermistor and a manufacturing method of the thermistor. Background technique [0002] Glass-encapsulated bead NTC (abbreviation for Negative Temperature Coefficient, negative temperature coefficient) thermistor can be used in the temperature range of -60 ~ 450 ℃, with the characteristics of high temperature control accuracy and small temperature drift, suitable for harsh environments: Moisture-proof, waterproof, smoke-proof, etc., it has a wide range of uses in office equipment, household appliances, medical, automobile, aerospace and other fields. [0003] Bead-shaped NTC thermistors are divided into two types according to the method of electrode formation. The first type is formed by printing silver palladium paste on both sides of the sintered NTC ceramic square sheet and then cutting it into small square pieces of 1x1mm....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C7/04H01C17/28B28B23/00
Inventor 邬若军
Owner SHENZHEN AMPRON TECH CORP
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