CN202281620U - NTC sensor with electrodes manufactured by copper slurry - Google Patents
NTC sensor with electrodes manufactured by copper slurry Download PDFInfo
- Publication number
- CN202281620U CN202281620U CN2011200495275U CN201120049527U CN202281620U CN 202281620 U CN202281620 U CN 202281620U CN 2011200495275 U CN2011200495275 U CN 2011200495275U CN 201120049527 U CN201120049527 U CN 201120049527U CN 202281620 U CN202281620 U CN 202281620U
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- electrode
- slurry
- copper
- ntc
- silver
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Abstract
The NTC sensor of the utility model employs copper slurry to substitute silver slurry to print NTC sensor electrodes, which can save precious metal silver, reduce sensor costs and solves the problems of device failure caused by silver ion drift. In the electrode sintering process, nitrogen protection measures are taken to overcome the difficulty of copper slurry oxidation in the sintering process and to realize the substation of silver slurry by the copper slurry.
Description
Technical field:
The utility model relates to the manufacturing process of NTC sensor and electrode thereof, more particularly, relates to the material and the technology of NTC electrode.
Background technology:
Traditional NTC sensor electrode is to adopt the printing of silver slurry, burns till through high temperature after the drying again.Silver belongs to precious metal, and cost is higher, and resource-constrained makes the production cost of NTC be difficult to descend.In addition, argent has natural silver ion transport phenomena: under the effect of DC electric field, silver and the silver ion directional drift that the reaction of minor amount of water molecule generates make resistance value change, and cause NTC to lose efficacy.
The utility model content:
Adopt the copper slurry to make the NTC sensor of electrode; By NTC ceramic body, ceramic body electrode, the PVC lead-in wire that links to each other with electrode, seal packing material and the nickel-clad copper shell constitutes; It is characterized in that: adopt the copper slurry to replace the silver slurry in the traditional handicraft, printing ceramic body electrode.Used copper slurry is to mix with nanometer or micron-sized copper powder particle and glass dust, organic bond.Adopt the nitrogen protection technological measure in sintering process, overcome the difficulty of copper slurry easy oxidation in sintering process.
Substituting silver with copper can reduce cost significantly, and resource is sufficient; Copper can effectively solve the defective of above-mentioned silver electrode not as the ion transport phenomena of silver simultaneously.
Description of drawings:
Accompanying drawing title: the typical structure of NTC sensor
Accompanying drawing mark: the moistureproof silica gel of (1) NTC ceramic body (2) copper electrode (3) (4) filling epoxy resin (5) nickel-clad copper shell (6) PVC lead-in wire
Embodiment:
Embodiment below in conjunction with the description of drawings utility model:
1. on the NTC ceramic body for preparing, print electrode with the copper slurry.(the used copper of seal electrode slurry is to mix with nanometer or micron-sized copper powder particle and glass dust, organic bond.) treat sintering behind the pole drying, sintering temperature is controlled at 820 ℃---and 880 ℃.Organic bond volatilization back copper powder oxidation by air when preventing sintering, sintering process is accomplished in nitrogen atmosphere protection.
2. behind the electrode sintering, process electroless plating or electric plating method are at the copper electroplating surfaces with tin, to adapt to the solid crystalline substance of chip, welding and SMT technology.
3. will plate good large stretch of ceramic chip and be divided into numerous independent NTC chips.
4. wire bonds: adopt no slicker solder that PVC lead-in wire (6) is welded on the NTC chip.(1) is the NTC ceramic body among the figure, and (2) are the copper electrode of sintering on ceramic body.
5. protection against the tide is sealed: the NTC chip (temperature measuring head) that will weld lead-in wire coats with organosilicon (3), and isolated moisture immerses.
6. seal outward: the temperature measuring head of silicone covering is inserted in nickel-clad copper shell (5), injection ring epoxy resins inserts (4), solidify 0.5 under 100 ℃ of temperature---1 hour.
Adopt the copper slurry to replace the silver slurry to make the NTC sensor electrode, both reduced material cost, fundamentally eliminated the silver ion caused component failure that drifts about again, improved the reliability of NTC sensor.
Claims (2)
1. adopt the copper slurry to make the NTC sensor of electrode; By NTC ceramic body, ceramic body electrode, the PVC lead-in wire that links to each other with electrode, seal packing material and the nickel-clad copper shell constitutes; It is characterized in that: adopt the copper slurry to replace the silver slurry in the traditional handicraft, printing ceramic body electrode.
2. employing copper according to claim 1 slurry is made the NTC sensor of electrode, it is characterized in that: after electrode burns till, with electroless plating or electric plating method at the copper electrode electroplating surfaces with tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200495275U CN202281620U (en) | 2011-02-22 | 2011-02-22 | NTC sensor with electrodes manufactured by copper slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200495275U CN202281620U (en) | 2011-02-22 | 2011-02-22 | NTC sensor with electrodes manufactured by copper slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202281620U true CN202281620U (en) | 2012-06-20 |
Family
ID=46227786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200495275U Expired - Lifetime CN202281620U (en) | 2011-02-22 | 2011-02-22 | NTC sensor with electrodes manufactured by copper slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202281620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015124421A1 (en) * | 2014-02-18 | 2015-08-27 | Epcos Ag | Ntc component and method for the production thereof |
-
2011
- 2011-02-22 CN CN2011200495275U patent/CN202281620U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015124421A1 (en) * | 2014-02-18 | 2015-08-27 | Epcos Ag | Ntc component and method for the production thereof |
| US20170250012A1 (en) * | 2014-02-18 | 2017-08-31 | Epcos Ag | Ntc component and method for the production thereof |
| US10074466B2 (en) * | 2014-02-18 | 2018-09-11 | Epcos Ag | NTC component and method for the production thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yanhong Document name: Notification to Go Through Formalities of Registration |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518111 Guangdong City, Longgang District, Pinghu street Pinghu community Fumin Industrial Zone, Beverly Road, No. 65, building two, No. 43 to the four floor Patentee after: SHENZHEN AMPRON TECHNOLOGY CORPORATION Address before: 518111, Guangdong, Shenzhen District, Longgang District, Pinghu street, Pinghu community Fumin Industrial Zone, Fukang Road, No. 53, on the third floor, West Block Patentee before: Shenzhen Ampron Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |