CN201556492U - Single-ended glass seal NTC thermistor graphite mould - Google Patents
Single-ended glass seal NTC thermistor graphite mould Download PDFInfo
- Publication number
- CN201556492U CN201556492U CN2009202433543U CN200920243354U CN201556492U CN 201556492 U CN201556492 U CN 201556492U CN 2009202433543 U CN2009202433543 U CN 2009202433543U CN 200920243354 U CN200920243354 U CN 200920243354U CN 201556492 U CN201556492 U CN 201556492U
- Authority
- CN
- China
- Prior art keywords
- counterdie
- mould
- patrix
- ntc thermistor
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a single-ended glass seal NTC thermistor graphite mould, which comprises an upper mould and a lower mould, wherein the upper mould is a module which is made from high-purity graphite plate and used for installing a glass pipe; the lower mould is a module which is made from the high-purity graphite plate and used for installing a lead wire and a thermosensitive chip glass pipe; the lower mould is provided with a lower mould positioning pin and a lower module lead wire hole, and the upper mould is provided with an upper mould positioning hole which is matched with the lower mould positioning pin; the upper mould is further provided with an upper mould glass pipe inserting hole; the lower module lead wire hole is faces to the center of the upper mould glass pipe inserting hole directly and is fixed through the lower mould positioning pin; and the lower module lead wire hole and the upper mould glass pipe inserting hole are respectively and evenly distributed within an effective work area according to a triangle. The mould has simple and reasonable structure, convenient use, low manufacture cost and the like, the mould-packed single-ended NTC thermistor is in the shape of ellipsoid, the resistance deviation is less than plus or minus 3.0%, the deviation of B value is not more than plus or minus 1.0%, the appearance of the product is attractive, the production efficiency is good, the operation is simple, and the product is particularly suitable for volume production.
Description
Technical field
The utility model relates to senser manufacturing technology field, and particularly NTC thermistor wrapper technology field is specifically related to a kind of single-ended glass envelope NTC thermistor graphite jig.
Background technology
The NTC thermistor is extensively used the various fields of varying environment, and wherein the high precision measuring temperature element wants cube little, and the response time is fast, and resistance is exchanged precision height and good stability.The manufacturing of this high precision thermosensitive resistor normally adopts section, scribing and encapsulating process (so-called semiconductor technology) to make.Up to the present, the high precision measuring temperature type NTC thermistor produced of China has only (droplet-shaped) NTC thermistor that the epoxy of (diode structure) glass envelope NTC thermistor of axial lead and single-ended lead-in wire is sealed.The glass envelope NTC thermistor of a spot of single-ended lead-in wire also is that method is made by hand usually.
Glass envelope NTC thermistor is that NTC temperature-sensitive chip and contact conductor are encapsulated in the glass shell, because glass is high temperature resistant, compactness is good, so glass envelope NTC thermistor is compared with epoxy resin enclosed thermistor, better stability is arranged, corrosion resistance and heat-resisting quantity.Thermistor is used as temperature survey and temperature control, always thermistor will be made transducer (transducer is by thermistor element, and overcoat and lead are formed).For making the convenience of transducer, requiring thermistor is single-ended pin configuration.At present, homemade single-ended glass envelope NTC thermistor is that the two sides of NTC temperature-sensitive chip (0.7 * 0.7 * 0.3 (mm)) is enclosed two Dumet wire lead-in wires with the silver slurry, putting diameter then is 2.4mm, the glass of thickness 0.2mm, and put in high-temperature electric resistance furnace or other firing equipments heating method of glass melting is made.It is extremely low to make single-ended NTC glass thermistor efficient with this technology, and the apparent size of product be difficult to control, uniformity in product performance is not high.Seek a kind of efficient height, simple to operate, the single-ended NTC thermistor glass encapsulation method and the equipment of good product consistency become the most urgent task that NTC thermal resistance producers face.The utility model provides a kind of graphite jig to provide convenience for reaching this purpose.
The utility model content
Problem to be solved in the utility model is, how a kind of novel single-ended glass envelope NTC thermistor graphite jig is provided, this single-ended glass envelope NTC thermistor graphite jig has advantages such as simple and reasonable, easy to use, that cost of manufacture is low, be used to make single-ended NTC glass thermistor efficient height, simple to operate, good product consistency.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of single-ended glass envelope NTC thermistor graphite jig is provided, it is characterized in that, described single-ended glass envelope NTC thermistor graphite jig comprises upper die and lower die; Described patrix processes the mould that is used to install glass tube for adopting the high purity graphite plate; Described counterdie processes the mould that is used to lay lead-in wire and temperature-sensitive chip glass pipe for employing high purity graphite piece; Described counterdie is provided with counterdie alignment pin and counterdie fairlead, and described patrix is provided with the patrix location hole that is complementary with the counterdie alignment pin; Also be provided with patrix glass tube patchhole on the described patrix; Described counterdie fairlead is over against the center of patrix glass tube patchhole, and fixed by the counterdie alignment pin; The fairlead of described counterdie and patrix glass tube patchhole are effectively all evenly distributing by triangle in the work area.
The length of above-mentioned upper die and lower die is 200mm, and width is 160mm; The thickness of counterdie is 15mm-25mm, and the thickness of patrix is 10mm-20mm.
The diameter of above-mentioned counterdie alignment pin is 20mm.
The diameter of above-mentioned counterdie fairlead is 0.3mm, and the distance between the adjacent counterdie fairlead is 0.3mm.
The diameter of above-mentioned patrix location hole is 8.05mm.
The diameter of above-mentioned patrix glass tube patchhole is than the big 0.2mm of diameter glass tube.
By above-mentioned technical scheme as can be known, single-ended glass envelope NTC thermistor graphite jig provided by the utility model has advantages such as simple and reasonable, easy to use, that cost of manufacture is low, be used to make single-ended NTC glass thermistor efficient height, simple to operate, good product consistency.
Description of drawings
Fig. 1 is the structure chart of single-ended glass envelope NTC thermistor graphite jig provided by the utility model.
Wherein, 1, counterdie; 2, counterdie alignment pin; 3, counterdie fairlead; 4, patrix; 5, patrix location hole; 6, patrix glass tube patchhole.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 is the structure chart of single-ended glass envelope NTC thermistor graphite jig provided by the utility model.As shown in the figure, this single-ended glass envelope NTC thermistor graphite jig comprises patrix 4 and counterdie 1; Described patrix 4 processes the mould that is used to install glass tube for adopting the high purity graphite plate; Described counterdie 1 processes the mould that is used to lay lead-in wire and temperature-sensitive chip glass pipe for employing high purity graphite piece; Described counterdie 1 is provided with counterdie alignment pin 2 and counterdie fairlead 3, and described patrix 4 is provided with the patrix location hole 5 that is complementary with counterdie alignment pin 2; Also be provided with patrix glass tube patchhole 6 on the described patrix 4; Described counterdie fairlead 3 is over against the center of patrix glass tube patchhole 6, and fixing by counterdie alignment pin 2; The fairlead 3 of described counterdie and patrix glass tube patchhole 6 are effectively all evenly distributing by triangle in the work area.
The length of described patrix 4 and counterdie 1 is 200mm, and width is 160mm; The thickness of counterdie 1 is 15mm-25mm, and the thickness of patrix 4 is 10mm-20mm.The diameter of described counterdie alignment pin 2 is 20mm.The diameter of described counterdie fairlead 3 is 0.3mm, and the distance between the adjacent counterdie fairlead 3 is 0.3mm.The diameter of described patrix location hole 5 is 8.05mm.The diameter of described patrix glass tube patchhole 6 is than the big 0.2mm of diameter glass tube.
To go between, NTC temperature-sensitive chip and glass tube are packed mould into, place N
2The electric furnace of protection is once finished the glass encapsulating of single-ended NTC thermistor, and the single-ended NTC thermistor of sealing with this mould is a spheroid shape, resistance value deviation＜± 3.0%; the deviation of B value is little ± and 1.0%, product shape is attractive in appearance, the production efficiency height; simple to operate, be particularly suitable for producing in batches.
Just adopt the concrete application example of single-ended glass envelope NTC thermistor graphite jig provided by the utility model to describe in detail below:
Example I
The length that adopts upper and lower mould is 200mm, width 160mm, and effectively working size is 140 * 100 (mm), and the thickness of counterdie is 20mm, and patrix thickness is 15mm; It is 280 that the fairlead of upper and lower mould and glass tube are sent into the hole, is effectively evenly distributing by triangle in the work area; Fairlead is that the distance between Ф 0.31, two fairlead is 0.3mm; It is 2.8mm (being furnished with diameter glass tube is 2.6mm, and thickness is 0.2mm, length 3.5mm) that glass tube is sent into the hole, and going between is that Dumet wire, diameter are 0.3mm, and size 10k Ω/3470K element carries out single-ended glass envelope, its result following (100 elements are average):
| The material model | XH-79 |
| Chip size | 0.7×0.7×0.3(mm) |
| Glass envelope temperature | 620℃ |
| The glass envelope time | 65sec |
| The resistance value R25 that glass is honored as a queen | 10.25KΩ |
| The dispersed Δ R/R of resistance | ±1.03％ |
| The B value that glass is honored as a queen | 3472K |
| The dispersiveness of B value | ±0.57％ |
| Element sensitization coefficient (300 ℃/100h) | +0.05％ |
| Outward appearance | Be the Elliptical sphere |
The result show adopt glass of the present utility model seal single-ended NTC thermistor resistance consistency reach ± 1.0%, the consistency of B value is better than ± 1.0%, short-term stability reaches 0.05%, profile is the Elliptical sphere, the error of overall dimension is 0.12mm.
Example II
Adopt identical mould of example I and glass tube and Dumet wire lead-in wire that the material of different resistivity and B value (prescription XH-234, resistivity is 20K Ω CM, the B value is 3950K) is carried out glass and seal, its result (100 elements are average) is as following table:
| The material model | XH-234 |
| Chip size | 0.75×0.75×0.28(mm) |
| Glass envelope temperature | 620℃ |
| The glass envelope time | 63sec |
| The resistance value that glass is honored as a queen | 102.3KΩ |
| The B value that glass is honored as a queen | 3970K |
| The resistance dispersiveness | ±0.986％ |
| The consistency of B value | ±1.003％ |
| The material model | XH-234 |
| Element sensitization coefficient | +0.08％ |
| Outward appearance | Be the Elliptical sphere |
The result shows, with single-ended glass envelope NTC thermistor graphite jig of the present utility model be honored as a queen resistance and B value of high resistivity and high B value material chip glass increased to some extent, may be by due to the anoxic in the glass envelope process, the consistency of element and stability are fine but glass is honored as a queen, outward appearance is also satisfactory, the only poor 0.13mm of apparent size.
EXAMPLE III
Adopt the mould identical with example I, lead-in wire and glass tube enter the glass envelope to low B value/high resistivity material, and the observation glass seals the influence to resistance value and B value, and result (100 elements are average) is as following table:
| Material-type (ρ=1.2K Ω, B=2100K) | XH-483 |
| Chip size | 0.7×0.7×0.3(mm) |
| Glass envelope temperature | 630℃ |
| The glass envelope time | 63sec |
| The resistance value that glass is honored as a queen | 7.56KΩ |
| The deviation of resistance | ±1.3％ |
| The B value that glass is honored as a queen | 2150K |
| The consistency of B value | ±1.1％ |
| Element sensitization coefficient (300 ℃/100h) | +0.07％ |
| Outward appearance | Be the Elliptical sphere |
The result shows, along with the rising of resistivity of material, the be honored as a queen error of resistance of glass increases, the consistency of B value, and also decline to some extent, this may be that material prescription contains Fe, SiO and other insulating material such as ZrO, Al
2O
3And BaTiO
3Deng what caused.According to sensitization coefficient and face shaping, NTC material graphite jig of the present utility model is sealed special material and is still feasible.
The single-ended glass envelope NTC thermistor graphite jig that provides according to presentation of results the utility model of example I, example II and EXAMPLE III is applicable to that the chip glass of the various materials of different resistivity and B value seals, the error of the resistance of the single-ended NTC thermistor of glass envelope is in ± 2.0%, the deviation of B value is ± 1%, short-term stability is better than ± and 0.5%, the deviation of overall dimensions is ± 0.13mm that package speed is 12 times of manual package speed.
Though the embodiment to this patent is described in detail in conjunction with the accompanying drawings, those skilled in the art do not need the protection range that various modifications that creative work can carry out or distortion still belong to this patent in the described protection range of this patent claims.
Claims (6)
1. a single-ended glass envelope NTC thermistor graphite jig is characterized in that, described single-ended glass envelope NTC thermistor graphite jig comprises patrix (4) and counterdie (1); Described patrix (4) processes the mould that is used to install glass tube for adopting the high purity graphite plate; Described counterdie (1) processes the mould that is used to lay lead-in wire and temperature-sensitive chip glass pipe for employing high purity graphite piece; Described counterdie (1) is provided with counterdie alignment pin (2) and counterdie fairlead (3), and described patrix (4) is provided with the patrix location hole (5) that is complementary with counterdie alignment pin (2); Also be provided with patrix glass tube patchhole (6) on the described patrix (4); Described counterdie fairlead (3) is over against the center of patrix glass tube patchhole (6), and fixing by counterdie alignment pin (2); Fairlead of described counterdie (3) and patrix glass tube patchhole (6) are effectively all evenly distributing by triangle in the work area.
2. single-ended glass envelope NTC thermistor graphite jig according to claim 1 is characterized in that the length of described patrix (4) and counterdie (1) is 200mm, and width is 160mm; The thickness of counterdie (1) is 15mm-25mm, and the thickness of patrix (4) is 10mm-20mm.
3. single-ended glass envelope NTC thermistor graphite jig according to claim 1 is characterized in that the diameter of described counterdie alignment pin (2) is 20mm.
4. single-ended glass envelope NTC thermistor graphite jig according to claim 1 is characterized in that the diameter of described counterdie fairlead (3) is 0.3mm, and the distance between the adjacent counterdie fairlead (3) is 0.3mm.
5. single-ended glass envelope NTC thermistor graphite jig according to claim 1 is characterized in that the diameter of described patrix location hole (5) is 8.05mm.
6. single-ended glass envelope NTC thermistor graphite jig according to claim 1 is characterized in that the diameter of described patrix glass tube patchhole (6) is than the big 0.2mm of diameter glass tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202433543U CN201556492U (en) | 2009-11-20 | 2009-11-20 | Single-ended glass seal NTC thermistor graphite mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202433543U CN201556492U (en) | 2009-11-20 | 2009-11-20 | Single-ended glass seal NTC thermistor graphite mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201556492U true CN201556492U (en) | 2010-08-18 |
Family
ID=42616181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202433543U Expired - Fee Related CN201556492U (en) | 2009-11-20 | 2009-11-20 | Single-ended glass seal NTC thermistor graphite mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201556492U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825985A (en) * | 2016-05-27 | 2016-08-03 | 深圳市特普生传感有限公司 | Single-ended glass-sealed NTC thermistor graphite die and use method thereof |
| CN110648809A (en) * | 2019-09-23 | 2020-01-03 | 安徽晶格尔电子有限公司 | Load bearing needle and application thereof in axial glass packaging thermistor sintering |
-
2009
- 2009-11-20 CN CN2009202433543U patent/CN201556492U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825985A (en) * | 2016-05-27 | 2016-08-03 | 深圳市特普生传感有限公司 | Single-ended glass-sealed NTC thermistor graphite die and use method thereof |
| CN105825985B (en) * | 2016-05-27 | 2018-05-29 | 深圳市特普生传感有限公司 | Single-ended glass seal NTC thermistor graphite mould and its application method |
| CN110648809A (en) * | 2019-09-23 | 2020-01-03 | 安徽晶格尔电子有限公司 | Load bearing needle and application thereof in axial glass packaging thermistor sintering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5413868B2 (en) | Thermoelectric conversion element module | |
| CN108109792B (en) | Thermistor with base and preparation method thereof | |
| CN201556492U (en) | Single-ended glass seal NTC thermistor graphite mould | |
| CN202587430U (en) | Ceramic heating core | |
| CN202485824U (en) | Laterally-clamped special-appearance Negative Temperature Coefficient (NTC) thermistor temperature sensor | |
| CN104501988A (en) | Wide-temperature-region high-accuracy NTC (Negative Temperature Coefficient) temperature sensor and manufacturing method thereof | |
| CN106568520A (en) | High temperature sensitive ceramic armored high-temperature thermocouple and manufacture method thereof | |
| CN207097816U (en) | A kind of high-power silicon carbide schottky rectifier bridge | |
| CN205159028U (en) | Wire winding piece formula power inductance | |
| CN207528360U (en) | A kind of thermocouple in melten glass liquid | |
| CN201184826Y (en) | Integral-sintered inner winding spring type platinum thermal resistance | |
| CN102176356A (en) | Platinum resistor chip and manufacture method thereof | |
| CN204257662U (en) | A kind of high-performance axial diode | |
| CN109521047B (en) | Transient hot wire method measuring device for two-phase flow heat conductivity coefficient | |
| CN204303488U (en) | A kind of Thermal protection type piezo-resistance | |
| CN104037148B (en) | Low-rejection-rate axial diode lead and soldering method of low-rejection-rate axial diode lead | |
| CN105300549A (en) | Surface contact type fast response temperature sensor and manufacture method | |
| CN109065307B (en) | Small-sized large-through-current capacity piezoresistor and preparation method thereof | |
| CN103578675A (en) | Making method of NTC thermo-sensitive resistor | |
| CN105825985A (en) | Single-ended glass-sealed NTC thermistor graphite die and use method thereof | |
| CN201335745Y (en) | Armored platinum-rhodium thermocouple | |
| CN201421381Y (en) | Platinum resistor temperature-sensing element | |
| CN201673277U (en) | Aluminium nitride ceramic packaging part | |
| CN203274944U (en) | Nuclear field high-temperature armored platinum-molybdenum thermocouple | |
| CN202255664U (en) | Aviation flexible wire thermocouple |
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: 20100818 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |