CN204857356U - NTC thermistor graphite jig - Google Patents
NTC thermistor graphite jig Download PDFInfo
- Publication number
- CN204857356U CN204857356U CN201520477172.8U CN201520477172U CN204857356U CN 204857356 U CN204857356 U CN 204857356U CN 201520477172 U CN201520477172 U CN 201520477172U CN 204857356 U CN204857356 U CN 204857356U
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- China
- Prior art keywords
- graphite cake
- hole
- thermistor
- lower graphite
- cake
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- Withdrawn - After Issue
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Abstract
The utility model relates to a NTC thermistor graphite jig, including upper and lower graphite cake, there is the locating hole at upper and lower graphite cake both ends, and there is the mounting hole of ampere supporting legs in the four corners, there is the layering between upper and lower graphite cake, has the locating hole that corresponds with upper and lower graphite cake both ends locating hole on the layering, the through -hole that has align to grid on the upper and lower graphite cake. The through -hole is by the higher authority, and the semicircle orifice that can hold up the glass tube lower extreme cylinder hole below with constitutes, the radius of a ball of semicircle orifice is 1.75mm, cylinder hole aperture is 0.6 0.1mm. Cylinder hole diameter and dumet wire diameter adaptation. The utility model discloses a through -hole design makes the glass bulb wholly exceed the high 1mm of dumet wire, and this parameter is a thermistor shaping melting parameter, can make the mellow and full unanimity of thermistor both ends encapsulation, effectively improves the thermistor outward appearance and seals the bad problem of owing, encapsulation thermistor, the melting need not auxiliary fixtures to shaping, the drawing of patterns, and the broken shell of no sticking is bad, product leakproofness, weatherability are strong.
Description
Technical field
The utility model relates to a kind of NTC thermistor graphite jig.
Background technology
NTC (NegativeTemperatureCoefficient) refers to the temperature coefficient born, the semi-conducting material that general reference negative temperature coefficient is very large or components and parts.NTC thermistor is negative tempperature coefficient thermistor, is with high-purity transition metal oxide, if the metal oxides such as manganese, cobalt, nickel and iron are main material, adopts the semiconductor ceramic element of ceramic process manufacture.
At present, conventional NTC thermistor has epoxy packages NTC thermistor and glass packaging NTC thermistor.In the chip package process of glass packaging NTC thermistor, glass bulb and Dumet wire encapsulate at grade, cause thermistor to encapsulate outward appearance: one end envelope is owed, and one end envelope circle, exists the hidden danger that thermistor potting is bad.So, in order to solve thermistor one end encapsulation problem mellow and full not, importing new construction graphite jig and meeting Production requirement.
Therefore be necessary to design a kind of NTC thermistor glass envelope graphite jig, to overcome the problems referred to above.
Summary of the invention
The purpose of this utility model is for above-mentioned present situation, aims to provide one, can solve the problem that the encapsulation of thermistor one end is mellow and full not, solve the NTC thermistor graphite jig that sealing is bad.
The implementation of the utility model object is, NTC thermistor graphite jig includes graphite cake, lower graphite cake, and there is location hole at upper and lower graphite cake two ends, and there is the installing hole of peace feet corner; There is press strip between upper and lower graphite cake, press strip has the location hole corresponding with upper and lower graphite cake two ends location hole; Upper and lower graphite cake there is evenly distributed through hole;
Described through hole is by above, and semicircle orifice and the cylindrical hole below that can hold up glass-tube lower end are formed; The radius of a ball of described semicircle orifice is 1.75mm; Described cylindrical hole aperture is 0.6 ± 0.1mm.
Use the utility model, load operation by lead-in wire and Dumet wire is filled in the through hole of lower graphite cake; By sieve glass bulb frock, glass bulb is enclosed within Dumet wire, completes glass bulb and load; Chip, by sieving chip frock, is sieved in glass bulb by the lower graphite cake having loaded Dumet wire and glass bulb; Press strip is loaded onto at the lower left and right two ends of graphite cake; The Dumet wire on upper graphite cake is covered with rectangle stainless steel separator; Overturn 180 °, by the location hole on graphite cake, make graphite cake back-off on lower graphite cake; By stainless steel separator laterally parallel slow pull-out, Dumet wire can fall in lower graphite cake glass bulb voluntarily; Enter stove again and carry out High-temperature Packaging sintering, glass bulb is starting melting up to more than 600 DEG C, and to shaping.
The utility model adopts via design, and make glass bulb entirety exceed Dumet wire height 1mm, this parameter is the shaping fusion parameters of thermistor, thermistor two ends can be made to encapsulate unanimously mellow and full, effectively improves thermistor outward appearance envelope and owes bad problem; Encapsulation thermistor, is molten to shaping, the demoulding without the need to auxiliary mould, bad without sticking to mould broken shell; Product hermeticity, weatherability are strong.
Accompanying drawing explanation
Fig. 1 is the utility model STRUCTURE DECOMPOSITION figure;
Fig. 2 is the utility model graphite cake structure vertical view;
Fig. 3 is that state diagram is loaded in the utility model single-pass hole;
Fig. 4 is that the utility model loads Dumet wire state diagram.
Embodiment
With reference to the accompanying drawings in detail the utility model is described in detail.
With reference to Fig. 1, of the present utility modelly include graphite cake 2, lower graphite cake 4, there is location hole 8 at upper and lower graphite cake two ends, and there is the installing hole 7 of peace feet 1 corner; There is press strip 3 between upper and lower graphite cake, press strip has the location hole corresponding with upper and lower graphite cake two ends location hole; Upper and lower graphite cake there is evenly distributed through hole 10.
Upper graphite cake 2, lower graphite cake 4 long 185 ± 0.1mm, wide 129 ± 0.1mm, thickness 6 ± 0.1mm.Upper graphite cake 2, lower graphite cake 4 are uniformly distributed 1495 through holes (see Fig. 2).
With reference to Fig. 3, described through hole is by above, and semicircle orifice 11 and the cylindrical hole 12 below that can hold up glass-tube 5 lower end are formed, and the radius of a ball of described semicircle orifice is 1.75mm, the diameter of cylindrical hole and the diameter adaptation of Dumet wire.Described cylindrical hole aperture is 0.6 ± 0.1mm.The dark 1mm of described semicircle orifice 11.
The plate of the utility model dress Dumet wire adopts graphite cake, and graphite cake has superpower high-temperature stability, and thermal coefficient of expansion is very little, and intensity is strengthened along with the rising of temperature; Graphite cake has good thermal conductivity, be able to take the acute variation of temperature and unlikely destruction when using at normal temperatures, and during temperature jump, change in volume is little, can not crack; Graphite cake environment protection health, no radioactivity pollute, high temperature resistant.Several large advantage is above the important support as thermistor packaging sintering.
4 feets 1 be arranged on installing hole play the effect of support; Feet 1 is high-carbon stainless steel feet, long 27.5mm, diameter 8mm, and with length 8mm, diameter 4mm screw coordinates four angles being fixed on upper and lower graphite cake, composition the utility model.
With reference to Fig. 1,4, use the utility model, load operation by lead-in wire and Dumet wire is filled in the through hole of lower graphite cake 4; By sieve glass bulb frock, glass bulb 5 is enclosed within Dumet wire 6, completes glass bulb and load; Chip, by sieving chip frock, is sieved in glass bulb by the lower graphite cake 4 having loaded Dumet wire and glass bulb; Press strip 3 is loaded onto at the lower left and right two ends of graphite cake; The Dumet wire on upper graphite cake 2 is covered with rectangle stainless steel separator; Overturn 180 °, by graphite jig location hole 8 and guide pile 9, make graphite cake 2 back-off on lower graphite cake 4; By stainless steel separator laterally parallel slow pull-out, Dumet wire 6 can do the movement of falling object, can smooth and easyly voluntarily fall in lower graphite cake glass bulb 2; Enter stove again and carry out High-temperature Packaging sintering, glass bulb is starting melting up to more than 600 DEG C, and to shaping.
The utility model adopts via design, and make glass bulb entirety exceed Dumet wire height 1mm, this parameter is the shaping fusion parameters of thermistor, thermistor two ends can be made to encapsulate unanimously mellow and full, effectively improves thermistor outward appearance envelope and owes bad problem; Encapsulation thermistor, is molten to shaping, the demoulding without the need to auxiliary mould, bad without sticking to mould broken shell; Product hermeticity, weatherability are strong.
Claims (5)
1.NTC thermistor graphite mould, is characterized in that: include graphite cake, lower graphite cake, and there is location hole at upper and lower graphite cake two ends, and there is the installing hole of peace feet corner; There is press strip between upper and lower graphite cake, press strip has the location hole corresponding with upper and lower graphite cake two ends location hole; Upper and lower graphite cake there is evenly distributed through hole;
Described through hole is by above, and semicircle orifice and the cylindrical hole below that can hold up glass-tube lower end are formed; The radius of a ball of described semicircle orifice (11) is 1.75mm; Described cylindrical hole aperture is 0.6 ± 0.1mm.
2. NTC thermistor graphite jig according to claim 1, is characterized in that: upper graphite cake (2), lower graphite cake (4) long 185 ± 0.1mm, wide 129 ± 0.1mm, thickness 6 ± 0.1mm.
3. NTC thermistor graphite jig according to claim 1, is characterized in that: upper graphite cake (2), lower graphite cake (4) are uniformly distributed 1495 through holes.
4. NTC thermistor graphite jig according to claim 1, is characterized in that: the dark 1mm of described semicircle orifice (11).
5. NTC thermistor graphite jig according to claim 1, it is characterized in that: feet (1) is high-carbon stainless steel feet, long 27.5mm, diameter 8mm, with length 8mm, diameter 4mm screw coordinates four angles being fixed on upper and lower graphite cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477172.8U CN204857356U (en) | 2015-07-03 | 2015-07-03 | NTC thermistor graphite jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477172.8U CN204857356U (en) | 2015-07-03 | 2015-07-03 | NTC thermistor graphite jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857356U true CN204857356U (en) | 2015-12-09 |
Family
ID=54747883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520477172.8U Withdrawn - After Issue CN204857356U (en) | 2015-07-03 | 2015-07-03 | NTC thermistor graphite jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204857356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023679A (en) * | 2015-07-03 | 2015-11-04 | 孝感华工高理电子有限公司 | NTC thermistor graphite mould and using method thereof |
-
2015
- 2015-07-03 CN CN201520477172.8U patent/CN204857356U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023679A (en) * | 2015-07-03 | 2015-11-04 | 孝感华工高理电子有限公司 | NTC thermistor graphite mould and using method thereof |
| CN105023679B (en) * | 2015-07-03 | 2018-02-16 | 孝感华工高理电子有限公司 | NTC thermistor graphite jig and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20180216 |
|
| AV01 | Patent right actively abandoned |