CN204066915U - A kind of Mirror Grinding - Google Patents
A kind of Mirror Grinding Download PDFInfo
- Publication number
- CN204066915U CN204066915U CN201420493312.6U CN201420493312U CN204066915U CN 204066915 U CN204066915 U CN 204066915U CN 201420493312 U CN201420493312 U CN 201420493312U CN 204066915 U CN204066915 U CN 204066915U
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- lead
- basic framework
- cap
- metallic diaphragm
- lead cap
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Abstract
The utility model discloses a kind of Mirror Grinding, be made up of basic framework, packaging body, lead-out wire, lead cap, metallic diaphragm, it is characterized in that: metallic diaphragm is attached to basic framework surface, basic framework two ends are fixed with lead cap, lead cap is connected with metallic diaphragm, be welded with lead-out wire outside lead cap, lead cap and basic framework are closed coated by packaging body.The utility model adopts epoxy resin perfusion sealing also can play moistureproof effect except insulation, and low resistance temperature coefficient reaches 3PPM/ DEG C, error range 0.01 ~ 0.1%, has good long-time stability, is widely used in instrument.
Description
Technical field
The utility model relates to a kind of field of electronic devices, particularly relates to a kind of Mirror Grinding.
Background technology
Metal film resistor is a kind of widely used universal electric element, is especially needing the space of high stability, high reliability, aviation, national defence and is applying more in electronic computer, communication Instrument, electron exchanger.Along with the development of electronic technology, to the reliability of electronic instrument and the requirement of performance, more and more higher.As the resistor of one of electronic circuit composed component, except requiring its resistance accuracy, also requirement is proposed to characteristics such as its stability.
Patent as Authorization Notice No. CN 202258599 U provides a kind of precision metal film resistor; be configured to by lead-out wire, protective layer, cap, conductive layer, high chromium porcelain body; in high chromium porcelain body frame both sides, specular is all fixedly mounted with cap; the cylinder of high chromium porcelain body frame is coaxially fixedly mounted with conductive layer; evenly be fixedly mounted with protective layer at cap and conductive layer outside, the cap two ends in protective layer are coaxially fixedly mounted with lead-out wire.Although its temperature coefficient of microminiature precision resistor that this resistor relates to reaches ± and 2.5 × 10
-6/ DEG C, its resistance accuracy can reach ± 0.1%, superhigh precision accuracy resistor, and its temperature coefficient can reach ± and 5 × 10
-6/ DEG C, its resistance accuracy can reach respectively ± 0.05%, ± 0.02%, but in the precise electronic such as communication Instrument, electron exchanger instrument field, its requirement is higher, also needs the resistor that precision is higher, temperature coefficient is lower, more stable.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, and provide a kind of Mirror Grinding, this has the feature of high accuracy, low-temperature coefficient and high stability, can be widely used in precision instrument instrument.
The technical solution of the utility model is: a kind of Mirror Grinding, it is characterized in that: be made up of basic framework, packaging body, lead-out wire, lead cap, metallic diaphragm, metallic diaphragm is attached to basic framework surface, basic framework two ends are fixed with lead cap, lead cap is connected with metallic diaphragm, be welded with lead-out wire outside lead cap, lead cap and basic framework are closed coated by packaging body.
Described packaging body is epoxy encapsulation body, adopts epoxy resin perfusion sealing to remove insulation external enwergy and plays moistureproof effect.
Described basic framework is aluminium oxide ceramics bar magnet, employing high-purity aluminum oxide ceramic material is basic framework, reaching the inner high compactness of resistive element, surperficial best bright finish, high-flatness, high reliability, requirement that thermal diffusivity is good, laying the foundation for putting forward high-resistance high accuracy, low-temperature coefficient and high stability.
As further improvement of the utility model, described metallic diaphragm is nichrome rete.
As further improvement of the utility model, described lead cap is zinc-plated chapeau de fer.
As further improvement of the utility model, described lead-out wire is tinned wird.
As further improvement of the utility model, described packaging body is epoxy resin.
The beneficial effects of the utility model are:
The utility model adopts epoxy resin perfusion sealing also can play moistureproof effect except insulation, and low resistance temperature coefficient reaches 3PPM/ DEG C, error range 0.01 ~ 0.1%, has good long-time stability, is widely used in precision instrument instrument.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of metalfilmresistor described in the utility model;
In figure, 1-basic framework, 2-metallic diaphragm, 3-lead cap, 4-lead-out wire, 5-packaging body.
Embodiment
Below in conjunction with embodiment, the utility model is described further:
In the present embodiment, as shown in Figure 1, a kind of Mirror Grinding, be made up of basic framework 1, packaging body 5, lead-out wire 4, lead cap 3, metallic diaphragm 2, metallic diaphragm 2 is nichrome rete, be attached to basic framework 1 surface of high-purity aluminum oxide ceramic material, high-purity aluminum oxide ceramic material is adopted to make basic framework, reaching the inner high compactness of resistive element, surperficial best bright finish, high-flatness, high reliability, requirement that thermal diffusivity is good, laying the foundation for putting forward high-resistance high accuracy, low-temperature coefficient and high stability.
Basic framework 1 two ends are fixed with lead cap 3, lead cap 3 is connected with the metallic diaphragm 2 of nichrome, the lead-out wire 4 of tin copper is welded with outside the lead cap 3 of tinplate, lead cap 3 and basic framework 1 are closed coated by packaging body 5, packaging body 5 adopts epoxy resin to pour into sealing, except insulation external enwergy plays moistureproof effect.
The utility model adopts epoxy resin perfusion sealing also can play moistureproof effect except insulation, and low resistance temperature coefficient reaches 3PPM/ DEG C, error range 0.01 ~ 0.1%, has good long-time stability, is widely used in precision instrument instrument.
More than show and describe principal character of the present utility model and advantage of the present utility model.The technical staff of the industry should understand, and the utility model is not restricted to the described embodiments, and the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a Mirror Grinding, be made up of basic framework, packaging body, lead-out wire, lead cap, metallic diaphragm, it is characterized in that: metallic diaphragm is attached to basic framework surface, basic framework two ends are fixed with lead cap, lead cap is connected with metallic diaphragm, be welded with lead-out wire outside lead cap, lead cap and basic framework are closed coated by packaging body.
2. Mirror Grinding according to claim 1, is characterized in that: described basic framework is aluminium oxide ceramics bar magnet.
3. Mirror Grinding according to claim 1, is characterized in that: described metallic diaphragm is nichrome rete.
4. Mirror Grinding according to claim 1, is characterized in that: described lead cap is zinc-plated chapeau de fer.
5. Mirror Grinding according to claim 1, is characterized in that: described lead-out wire is tinned wird.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493312.6U CN204066915U (en) | 2014-08-29 | 2014-08-29 | A kind of Mirror Grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493312.6U CN204066915U (en) | 2014-08-29 | 2014-08-29 | A kind of Mirror Grinding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066915U true CN204066915U (en) | 2014-12-31 |
Family
ID=52208375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420493312.6U Expired - Fee Related CN204066915U (en) | 2014-08-29 | 2014-08-29 | A kind of Mirror Grinding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882234A (en) * | 2015-06-05 | 2015-09-02 | 广东明路电力电子有限公司 | Power resistor of three-dimensional network structure and processing technique of power resistor |
| CN109243744A (en) * | 2018-09-20 | 2019-01-18 | 贝迪斯电子有限公司 | A kind of preparation method of zero ohms column resistance |
-
2014
- 2014-08-29 CN CN201420493312.6U patent/CN204066915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882234A (en) * | 2015-06-05 | 2015-09-02 | 广东明路电力电子有限公司 | Power resistor of three-dimensional network structure and processing technique of power resistor |
| CN109243744A (en) * | 2018-09-20 | 2019-01-18 | 贝迪斯电子有限公司 | A kind of preparation method of zero ohms column resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |