CN203869788U - Ultralow-temperature platinum resistor sensor - Google Patents
Ultralow-temperature platinum resistor sensor Download PDFInfo
- Publication number
- CN203869788U CN203869788U CN201420147540.8U CN201420147540U CN203869788U CN 203869788 U CN203869788 U CN 203869788U CN 201420147540 U CN201420147540 U CN 201420147540U CN 203869788 U CN203869788 U CN 203869788U
- Authority
- CN
- China
- Prior art keywords
- platinum
- platinum resistor
- packaging
- sensor
- ultralow
- 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 - Lifetime
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 50
- 238000005538 encapsulation Methods 0.000 claims description 19
- 229910052738 indium Inorganic materials 0.000 claims description 11
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 abstract 9
- 230000000694 effects Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000002519 antifouling agent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a low-temperature temperature information acquisition sensor, and discloses an ultralow-temperature platinum resistor sensor. The ultralow-temperature platinum resistor sensor comprises a packaging base (1), a platinum resistor (2), a packaging cover (3) and a packaging collar (4). The packaging collar (4) is in buckling connection with the packaging base (1), the packaging cover (3) covers the packaging collar (4), the platinum resistor (2) is welded in the packaging base (1), and the platinum resistor (2) is led out through a leading-out wire (5). According to the utility model, a button type structure is employed, and at the same time, portions which are easily damaged, such as the platinum resistor and the like are packaged inside the packaging base, such that the ultralow-temperature platinum resistor sensor has the advantages of convenient assembling and disassembling, long sensor service life, and the like.
Description
Technical field
The utility model relates to the sensor of cryogenic temperature information acquisition, has related in particular to a kind of ultralow temperature platinum sensor.
Background technology
At present, sensor for the collection of ultralow temperature temperature information has 2 requirements, first will realize collecting temperature information accurately: for the authenticity of Pt1000 sensor image data is preferably used the sensor of non-packed, but the sensor of non-packed very easily damages and be difficult for installation, this has increased difficulty and the cost of operation undoubtedly, therefore adopt the sensor of encapsulation, this just relates to the encapsulation of non-packed Pt1000; The information that the second packaged Pt1000 not only will meet collection accurately and reliably, is convenient to install but also must meet, and the encapsulation Pt1000 applicability of outsourcing is limited.
In ultralow temperature situation, for the temperature information accurately gathering on cold head adopts the Pt1000 of non-packed more and need to develop applicable packing forms according to the practicality of oneself, because like this can be by temperature information reflecting promptly and accurately.The limited space of sensor installation on the cold head of refrigeration machine, so Structure of need compact but also will guarantee that facilitating of safe and reliable, economical and practical and operating process is feasible.
Summary of the invention
The utility model is for the limited space of sensor installation on the cold head of refrigeration machine in prior art, traditional sensor has complex structure, the shortcoming such as not easy to assemble, provide a kind of employing button-shaped structure, thereby realized, be convenient to the serviceable life that mounting or dismounting have extended sensor, the flimsy parts such as platinum resistance be encapsulated in to the ultralow temperature platinum sensor of the inside of enclosed seat simultaneously.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Ultralow temperature platinum sensor, comprises enclosed seat, platinum resistance, cap and the encapsulation collar, and package cover latch closure is connected on enclosed seat, and cap covers on the encapsulation collar, and platinum resistance is welded in enclosed seat, and platinum resistance is drawn by extension line.
As preferably, enclosed seat comprises boss, and the side of boss arranges side hole, and extension line is connected with platinum resistance through side hole.Boss is that cylindrical boss cuts part, and it cuts part and draws lead-in wire and enameled wire for installing.
As preferably, upper shed is set on boss.
As preferably, extension line is connected with enameled wire.
As preferably, on the encapsulation collar, fluting is set, enameled wire is drawn by the place of fluting.
As preferably, enameled wire outer cladding heat-shrink tube, heat-shrink tube is socketed protecting pipe outward, between heat-shrink tube and protecting pipe and in enclosed seat, by low temperature glue, fills sealing.
As preferably, platinum resistance is Pt1000 platinum resistance.Between platinum resistance and extension line, welding compound or sealing wire are indium.After test of many times, the good conductor of selecting this heat of indium is during as solder flux, and measurement effect is best.
As preferably, extension line and enameled wire weld by indium, and platinum resistance is welded on enclosed seat by indium.
The utility model is owing to having adopted above technical scheme, there is significant technique effect: the utility model is by adopting button-shaped structure, the flimsy parts such as platinum resistance are encapsulated in to the inside of enclosed seat simultaneously, have and be convenient to mounting or dismounting, the advantages such as sensor long service life.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the utility model embodiment 1.
Fig. 2 is the structural representation of enclosed seat in Fig. 1.
Fig. 3 is the structural representation that encapsulates the collar in Fig. 1.
The toponym that in above accompanying drawing, each number designation refers to is as follows: wherein 1-enclosed seat, 2-platinum resistance, 3-cap, 4-encapsulation collar, 5-extension line, 6-heat-shrink tube, 7-protecting pipe, 8-enameled wire, 11-boss, 12-upper shed, 13-side hole, 41-fluting.
Embodiment
Below in conjunction with accompanying drawing 1 to Fig. 3 and embodiment, the utility model is described in further detail:
Embodiment 1
Ultralow temperature platinum sensor, as shown in Figure 1 to Figure 3, comprises enclosed seat 1, platinum resistance 2, cap 3 and the encapsulation collar 4, the encapsulation collar 4 snaps onto on enclosed seat 1, cap 3 covers on the encapsulation collar 4, and platinum resistance 2 is welded in enclosed seat 1, and platinum resistance 2 is drawn by extension line 5.
Enclosed seat 1 comprises boss 11, and the side of boss 11 arranges side hole 13, and extension line 5 is connected with platinum resistance 2 through side hole 13.Upper shed 12 is set on boss 11.By boss 11 is set, the interior arrangement platinum resistance 2 of boss 11, because the edge of boss 11 is cut a part, the side that cuts part arranges side hole 13, and its structure is compacter.
Extension line 5 is connected with enameled wire 8.On the encapsulation collar 4, fluting 41 is set, enameled wire 8 is drawn by fluting 41 places.Enameled wire 8 outer cladding heat-shrink tubes 6, the outer socket protecting pipe 7 of heat-shrink tube 6, fills sealing by low temperature glue between heat-shrink tube 6 and protecting pipe 7 and in enclosed seat 1.On the encapsulation collar 4, fluting 41 is set, its effect is the outlet with enameled wire 8 on the one hand as extension line 5, on the other hand, play fixing effect, can have to stop and exempt from extension line 5 or enameled wire 8 moves left and right, avoid coming off between extension line 5 and platinum resistance 2, the normal operation of assurance equipment and extension device serviceable life.
Platinum resistance 2 is Pt1000 platinum resistance.Between platinum resistance 2 and extension line 5, welding compound or sealing wire 5 are indium.After test of many times, the good conductor of selecting this heat of indium is during as solder flux, and measurement effect is best.Extension line 5 welds by indium with enameled wire 8, and platinum resistance 2 is welded on enclosed seat 1 by indium.
Adopt button-shaped structure, thereby realized, be convenient to the serviceable life that mounting or dismounting have extended sensor; While is in the inside of enclosed seat, one is through test experiments repeatedly, determine to adopt the good conductor of this heat of indium to realize the heat conduction between non-packed Pt1000 and enclosed seat, suitable heat-shrink tube, Teflon pipe and the enameled wire of its two employing drawn signal accurately in enclosed seat, it three is to have adopted low temperature glue, the encapsulation collar and cap that the extension line of Pt1000 is encapsulated reliably, the most important thing is flimsy partial fixing in inside configuration.
So just both can install and remove very easily and can also exactly temperature information be transmitted on surveying instrument smoothly.And when welding: one will guarantee that Pt1000 platinum resistance 2 and the weld of enclosed seat 1 will weld reality; Two will guarantee that the extension line 5 of Pt1000 does not contact with other metal parts around, in order to avoid cause measuring error.Next be exactly extension line 5 butt welding with Pt1000 by the enameled wire of choosing 8; then with suitable heat-shrink tube 6 by the butt welding place isolation of insulating respectively; with suitable Teflon sleeve pipe 7, enameled wire is set up again and one end is reached to the encapsulation collar 4 inside; then with encapsulation, the fluting 41 on the collar 4 blocks PTFE sheath pipe 7, like this can well protective paint envelope curve be subject to the damage of external force.Then with low temperature glue, the space of package assembling inside is tamped, compress cap and treat that it solidifies.Finally according to the mounting hole that need to beat package assembling of the cold head of installing.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (8)
1. ultralow temperature platinum sensor, comprise enclosed seat (1), platinum resistance (2), cap (3) and the encapsulation collar (4), it is characterized in that: the encapsulation collar (4) snaps onto on enclosed seat (1), cap (3) covers on the encapsulation collar (4), platinum resistance (2) is welded in enclosed seat (1), and platinum resistance (2) is drawn by extension line (5).
2. ultralow temperature platinum sensor according to claim 1, is characterized in that: enclosed seat (1) comprises boss (11), and the side of boss (11) arranges side hole (13), and extension line (5) is connected with platinum resistance (2) through side hole (13).
3. ultralow temperature platinum sensor according to claim 2, is characterized in that: upper shed (12) is set on boss (11).
4. ultralow temperature platinum sensor according to claim 1, is characterized in that: extension line (5) is connected with enameled wire (8).
5. ultralow temperature platinum sensor according to claim 4, is characterized in that: on the encapsulation collar (4), fluting (41) is set, enameled wire (8) is located to draw by fluting (41).
6. ultralow temperature platinum sensor according to claim 4, it is characterized in that: enameled wire (8) outer cladding heat-shrink tube (6), the outer socket of heat-shrink tube (6) protecting pipe (7), fills sealing by low temperature glue between heat-shrink tube (6) and protecting pipe (7) and in enclosed seat (1).
7. ultralow temperature platinum sensor according to claim 1, is characterized in that: platinum resistance (2) is Pt1000 platinum resistance.
8. ultralow temperature platinum sensor according to claim 1, is characterized in that: extension line (5) welds by indium with enameled wire (8), and platinum resistance (2) is welded on enclosed seat (1) by indium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147540.8U CN203869788U (en) | 2014-03-28 | 2014-03-28 | Ultralow-temperature platinum resistor sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147540.8U CN203869788U (en) | 2014-03-28 | 2014-03-28 | Ultralow-temperature platinum resistor sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203869788U true CN203869788U (en) | 2014-10-08 |
Family
ID=51650728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147540.8U Expired - Lifetime CN203869788U (en) | 2014-03-28 | 2014-03-28 | Ultralow-temperature platinum resistor sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203869788U (en) |
-
2014
- 2014-03-28 CN CN201420147540.8U patent/CN203869788U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |
|
| CX01 | Expiry of patent term |