CN202770537U - Temperature measurement probe hole shrinkage packaging structure - Google Patents
Temperature measurement probe hole shrinkage packaging structure Download PDFInfo
- Publication number
- CN202770537U CN202770537U CN201220451668.4U CN201220451668U CN202770537U CN 202770537 U CN202770537 U CN 202770537U CN 201220451668 U CN201220451668 U CN 201220451668U CN 202770537 U CN202770537 U CN 202770537U
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- China
- Prior art keywords
- temperature
- sensing element
- temperature probe
- undergauge
- protection tube
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- Expired - Fee Related
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Abstract
The utility model relates to a temperature measurement probe hole shrinkage packaging structure. A technical scheme is characterized in that: multi-core shielding cable having excellently elastic rubber or silicone rubber sheath is utilized; a metal protection tube which has good ductility and of which a temperature measurement probe is rolled through a rolling wheel is utilized as a temperature measurement probe metal protection tube; the metal protection tube is extruded out of an groove; partial inner diameter shrinkage of the metal protection tube is realized; the multi-core cable sheath is clamped; a temperature sensing element and lead are clamped and securely fixed; and sealing of the temperature sensing element is realized, so intrusion of moisture into the metal protection tube can be avoided, and short circuit or insulation failure of the temperature sensing element are avoided, and thereby reliability is greatly improved. The temperature measurement probe hole shrinkage packaging structure has advantages of simple and reasonable structure, safe and reliable performances, wide application scope, accurate measurement data, convenient and fast processing, and the like.
Description
Technical field
The utility model relates to a kind of unique package technical field of temperature sensor manufacturing process, specifically a kind of temperature probe undergauge encapsulating structure that is applicable to sheath multicore cable and protection metal pipe structure temperature sensor.
Background technology
The temperature sensor temperature probe is that very widely device is used in a kind of industry, military and civilian field, generally is comprised of with the connection wire temperature-sensing element (platinum resistance thermometer sensor, or thermistor), protection metal pipe.Improve reliability in order to increase physical strength; often filling bonded adhesives in protection tube is fixed on temperature-sensing element and connection welding in the protection tube; and with the isolation of temperature-sensing element contact conductor and extraneous medium, avoid extraneous water and moisture contact lead-wire solder joint to cause the temperature-sensing element short circuit or be corroded and lost efficacy.
Because temperature sensor temperature probe working environment is comparatively complicated, requires the encapsulation of temperature probe definitely to ensure the quality of products.There is following several respects defective workmanship in traditional packaging technology, affects package quality and the dependability of temperature probe.
1. fill glue and in filling the protection tube process, can not get rid of the filling intracavity gas fully, can not fully fill protection tube, cause in use making filling glue produce the crack owing to expand with heat and contract with cold at temperature probe, cause extraneous moisture to invade protection tube, contact temperature-sensitive component lead electrode or solder joint cause the temperature-sensing element short circuit or the inefficacy that is corroded;
2. temperature-sensing element is together with filling glue in inserting the protection tube process, the tube cavity residual gas can not be emptied completely, temperature-sensing element can touch the protection tube bottom when being subjected to force compresses, residue gas after losing after the external force in the pipe is by compression known from experience and is expanded the temperature-sensing element segment distance that rebounds out, cause temperature-sensing element can not reach the protection tube bottom, affect the thermometric effect;
3. the temperature probe of conventional package method is subject to pulling when drawing at external lead wire, and stressed direct effect is very easily broken lead-in wire and solder joint on temperature-sensing element contact conductor and connection welding, thereby damages temperature probe.
High-quality temperature probe will have good physical strength, good sealing and the consistance of inner structure.This has just proposed strict technical requirement to the packaging technology of temperature probe, guarantees the package quality of temperature probe, also will guarantee higher work efficiency simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of temperature probe undergauge encapsulating structure of realizing the solid and reliable encapsulation of temperature sensor temperature probe.
The purpose of this utility model is achieved in that it includes temperature-sensing element; contact conductor; screen layer; the polycore cable sheath; it is characterized in that: the metal mesh shield layer outside at contact conductor also is provided with one deck polycore cable sheath; at temperature-sensing element and go back fixing sleeve near the polycore cable sheath of temperature-sensing element the temperature probe protection metal pipe is housed, fixing sleeve is contained on the temperature probe protection metal pipe of polycore cable sheath and is provided with at least a undergauge annular groove that is used for the sealing temperature probe.
Polycore cable sheath described in the utility model is rubber or silicon rubber Multi-core jacket cable.
Described polycore cable is two cores, three cores or quad.
The process equipment of described undergauge annular groove comprises a chuck and connecting frame, be provided with the tri-roll rolling device at connecting frame, wherein be provided with a rolling wheel on the top of connecting frame, with also be provided with two on the correspondence position of rolling wheel below and be used for clamping the cylindrical rolls that support, on two cylindrical rolls, also be connected with a precession handle.
The procedure of processing of the utility model temperature probe undergauge encapsulating structure is: first with temperature-sensing element; contact conductor be connected wire bonds and do insulation and process; the connection wire is selected the polycore cable with sheath and shielding; protection tube afterbody internal diameter is slightly larger than and connects wire polycore cable sheath external diameter; temperature-sensing element is inserted the protection metal pipe bottom together with filling glue; clamp the protection metal pipe socket with the tri-roll rolling device and connect wire polycore cable jacket portions; there is a rolling wheel to be used for feeding undergauge in the tri-roll rolling device; two rollers are that cylindrical roll is used for clamping support in addition; rotate by protection metal pipe is relative with the tri-roll rolling device; with rolling wheel constantly feed extruding; make rolling wheel extrude groove at protection metal pipe; protection metal pipe channel portions internal diameter shrinks; compress the polycore cable sheath; make temperature-sensing element and wire obtain stepping up and reliable fixing, also realized the sealing of temperature-sensing element simultaneously.
The temperature sensing temperature probe roll extrusion undergauge encapsulation technology process that the utility model proposes is not seen open report.
The temperature sensor temperature probe of the temperature sensing temperature probe roll extrusion undergauge encapsulation technology process encapsulation that the utility model proposes has the following advantages:
1. protection metal pipe diameter shrinkage part of the present utility model and polycore cable oversheath are fixedly clamped, elasticity by polycore cable jacket material itself makes itself and protection metal pipe diameter shrinkage part reach positiver sealing, avoid moisture to invade in the protection tube, caused temperature-sensing element short circuit or failure of insulation;
2. protection metal pipe diameter shrinkage part of the present utility model and polycore cable oversheath are fixedly clamped, can not eject temperature-sensing element generation displacement even there is pressure gas in the protection metal pipe yet, guarantee that temperature-sensing element can both place technical protection pipe bottom, make the structure of temperature probe consistent, do not affect the thermometric effect;
3. protection metal pipe diameter shrinkage part of the present utility model and polycore cable oversheath are fixedly clamped; if outer lead exists when pullling; stressed polycore cable oversheath and the protection metal pipe undergauge compression junction of mainly concentrating on; greatly reduce inside conductor and the temperature-sensing element lead solder-joint is stressed; the anti-pull intensity of temperature sensor temperature probe is significantly improved, and dependability significantly strengthens.
4. the utility model also have simple and reasonable, safe and reliable, range of application is wide, test data is accurate, the advantage such as quick easy to process.
Description of drawings
Fig. 1 is the utility model temperature sensor temperature probe structural representation sketch;
Fig. 2 is the utility model temperature sensor temperature probe process equipment simplified schematic diagram;
Fig. 3 is that the structural representation sketch cuts open in the office of Fig. 2.
The symbol description of accompanying drawing major part
11. temperature-sensing element; 12. lead solder-joint; 13. contact conductor; 14. screen layer; 15. polycore cable sheath; 16. protection metal pipe; 17. undergauge annular groove; 21. chuck; 23. rolling wheel; 24. cylindrical roll; 27. precession handle; 28. connecting frame.
The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example only is the utility model example wherein; do not represent the rights protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claims.
Embodiment
Example 1
With reference to figure 1; the utility model provides a kind of temperature probe undergauge encapsulating structure; it includes temperature-sensing element 11; contact conductor 13; screen layer 14; polycore cable sheath 15; the metal mesh shield layer outside at contact conductor also is provided with one deck polycore cable sheath 15; described polycore cable sheath 15 is the silicon rubber Multi-core jacket cable; described polycore cable is two cores; at temperature-sensing element 11 and go back fixing sleeve near the polycore cable sheath of temperature-sensing element temperature probe protection metal pipe 16 is housed, fixing sleeve is contained on the temperature probe protection metal pipe 16 of polycore cable sheath and is provided with at least a undergauge annular groove 17 that is used for the sealing temperature probe.
Process equipment with reference to the undergauge annular groove of the temperature probe undergauge encapsulating structure of figure 2, Fig. 3: the process equipment of described undergauge annular groove 17 comprises a chuck 21 and connecting frame 28, be provided with the tri-roll rolling device at connecting frame, wherein be provided with a rolling wheel 23 on the top of connecting frame, with also be provided with two on the correspondence position of rolling wheel 23 belows and be used for clamping the cylindrical rolls 24 that support, 24 also are connected with a precession handle 27 on two cylindrical rolls.
With reference to figure 2, Fig. 3; the job operation of the utility model temperature probe undergauge encapsulating structure: first with temperature-sensing element 11 contact conductors be connected wire bonds; put insulating sleeve and carry out insulation processing; temperature-sensing element 11 is inserted protection metal pipe 16 together with filling glue; make temperature-sensing element 11 be deep into protection metal pipe 16 bottoms; protection metal pipe 16 seal head ends are clipped on the chuck 21; clamp protection metal pipe 16 with rolling wheel 23 with compressing cylindrical roll, rolling wheel 23 is adjusted to the wish roll extrusion undergauge annular groove position of protection metal pipe 16.Chuck 21 rotarily drives at a slow speed protection metal pipe 16 and polycore cable synchronous rotary; handle simultaneously precession handle 27; make that rolling wheel 23 and cylindrical roll 24 move closer in the rolling device; the precession handle is marked with scale; slowly increase the roll extrusion degree of depth of annular groove 17; and the roll extrusion degree of depth is less than pipe thickness; continuous roll extrusion by 23 pairs of protection metal pipes 16 of rolling wheel; at one undergauge annular groove 17 of protection metal pipe 16 roll extrusion; these undergauge annular groove 17 place's internal diameters shrink when clamping polycore cable sheath 15; make temperature-sensing element and wire obtain stepping up and reliable fixing, also realized the sealing of temperature-sensing element simultaneously.Rolling device is taken off in the roll extrusion of stopping the rotation, and unclamps chuck 21, checks package quality.
Claims (4)
1. temperature probe undergauge encapsulating structure; it includes temperature-sensing element; contact conductor; screen layer; the polycore cable sheath; it is characterized in that: also be provided with one deck polycore cable sheath in the metal mesh shield layer of the contact conductor outside, at temperature-sensing element and go back fixing sleeve near the polycore cable sheath of temperature-sensing element the temperature probe protection metal pipe is housed, fixing sleeve is contained on the temperature probe protection metal pipe of polycore cable sheath and is provided with at least a undergauge annular groove that is used for the sealing temperature probe.
2. temperature probe undergauge encapsulating structure according to claim 1, it is characterized in that: described polycore cable sheath is rubber or silicon rubber Multi-core jacket cable.
3. temperature probe undergauge encapsulating structure according to claim 1, it is characterized in that: described polycore cable is two cores, three cores or quad.
4. temperature probe undergauge encapsulating structure according to claim 1, it is characterized in that: the process equipment of described undergauge annular groove comprises a chuck and connecting frame, be provided with the tri-roll rolling device at connecting frame, wherein be provided with a rolling wheel on the top of connecting frame, with also be provided with two on the correspondence position of rolling wheel below and be used for clamping the cylindrical rolls that support, on two cylindrical rolls, also be connected with a precession handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451668.4U CN202770537U (en) | 2012-09-06 | 2012-09-06 | Temperature measurement probe hole shrinkage packaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451668.4U CN202770537U (en) | 2012-09-06 | 2012-09-06 | Temperature measurement probe hole shrinkage packaging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770537U true CN202770537U (en) | 2013-03-06 |
Family
ID=47777101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220451668.4U Expired - Fee Related CN202770537U (en) | 2012-09-06 | 2012-09-06 | Temperature measurement probe hole shrinkage packaging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770537U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840923A (en) * | 2012-09-06 | 2012-12-26 | 沈阳仪表科学研究院 | Temperature measurement probe hole shrinkage encapsulation structure and machining method thereof |
| CN107631810A (en) * | 2017-10-25 | 2018-01-26 | 江苏杰创科技有限公司 | A kind of pump housing bearing shell oil resistance thermometer |
-
2012
- 2012-09-06 CN CN201220451668.4U patent/CN202770537U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840923A (en) * | 2012-09-06 | 2012-12-26 | 沈阳仪表科学研究院 | Temperature measurement probe hole shrinkage encapsulation structure and machining method thereof |
| CN102840923B (en) * | 2012-09-06 | 2014-01-15 | 沈阳仪表科学研究院 | Temperature measurement probe hole shrinkage encapsulation structure and machining method thereof |
| CN107631810A (en) * | 2017-10-25 | 2018-01-26 | 江苏杰创科技有限公司 | A kind of pump housing bearing shell oil resistance thermometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20130906 |