CN108036871A - A kind of spring-pressing fix type thermocouple - Google Patents
A kind of spring-pressing fix type thermocouple Download PDFInfo
- Publication number
- CN108036871A CN108036871A CN201810029769.4A CN201810029769A CN108036871A CN 108036871 A CN108036871 A CN 108036871A CN 201810029769 A CN201810029769 A CN 201810029769A CN 108036871 A CN108036871 A CN 108036871A
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- China
- Prior art keywords
- spring
- thermocouple
- compression spring
- silica gel
- wire
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/023—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples provided with specially adapted connectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/10—Arrangements for compensating for auxiliary variables, e.g. length of lead
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of spring-pressing fix type thermocouple, belongs to temperature sensor field, it is possible to increase the sensitivity of thermocouple and use scope.Compression spring side of the present invention is equipped with heat-shrinkable T bush, compensating wire, and opposite side is equipped with locking clamp spring, stud, adiabatic silica gel plug, stainless steel metal casing, thermocouple wire working end, copper sheet；Compression spring fixes the position of locking clamp spring, stud forms compressing structure with compression spring, U-shaped pin on stud coordinates with the type groove on locking clamp spring forms locking mechanism, there are fine through holes among adiabatic silica gel plug, metal sleeve is filled in one end, metal sleeve compresses on the shielding layer close to one end of compression spring, thermocouple wire working end in metal sleeve passes through adiabatic silica gel plug intermediate throughholes to stretch out, thermocouple wire working end is connected with copper sheet, gap silicon rubber filling between adiabatic silica gel plug bottom and copper sheet, it can determine the point position of thermocouple reality, the temperature of required position can accurately be measured.
Description
Technical field
The invention belongs to temperature sensor field, more particularly to a kind of spring-pressing fix type thermocouple.
Background technology
Thermocouple as a kind of temperature element, due to can direct measurement temperature, and temperature signal is converted into electric signal
Electric meter is supplied to, is widely used.But since thermocouple is easily tied in thermometric because installation question causes to measure
Fruit is inaccurate.There is a kind of spring-pressing fix type thermocouple to solve installation question, although existing spring-pressing fix type thermocouple
Solve the installation question of thermocouple, but due to adding metal sleeve, the serious shadow of thermal capacitance of metal sleeve outside thermocouple wire
Thermocouple sensitivity is rung, makes the thermocouple temperature measurement reaction time slack-off, accuracy can also be affected, and can not be applied to the dynamic of temperature
State measures；And traditional spring-pressing fix type thermocouple is during fabrication, since technique limits, the survey of its thermocouple wire can not be determined
Measure end（Hot junction）Position in metal sleeve, may be close to some position of madial wall, may be close to bottom, it is also possible in metal
Hanging in pipe, this does not only result in thermal resistance increase during thermometric, sensitivity decrease, so that temperature measuring point is not known, if should
For measuring occasion as body surface temperature, measurement error can be greatly increased；Therefore existing spring-pressing fix type heat
Galvanic couple can not meet the measurement demand high to sensitivity and required precision, can not be applied to dynamic and measure and measure body surface temperature
The occasions such as degree.
The content of the invention
The present invention provides a kind of spring-pressing fix type thermocouple, it is possible to increase the precision of spring-pressing fix type thermocouple and sensitive
Degree, can be applied to the measurement fields such as, temperature dynamic change more demanding to accuracy and sensitivity and measurement body surface temperature
Close, widened spring-pressing fix type thermocouple application range.
In order to achieve the above object, the present invention uses following technical scheme：
A kind of spring-pressing fix type thermocouple, including 5 side of compression spring are equipped with heat-shrinkable T bush 3, compensating wire 2, and opposite side is equipped with locking
Clamp spring 8, stud 10, adiabatic silica gel plug 11, stainless steel metal casing 12, thermocouple wire working end 13, copper sheet 15；Compensating wire
2 one end are equipped with wire connection terminal 1, and 2 other end of compensating wire is connected with thermocouple wire, and the outer provided with shielding layer 4 of compensating wire 2, is shielding
Layer 4 is equipped with one section of heat-shrinkable T bush 3 with 2 transition position of compensating wire, and compression spring 5 is sleeved on outside shielded layer 4, there is locking cutting ferrule 6 outside compression spring 5,
6 one side opening of cutting ferrule is locked, opposite side has threaded hole, and locking cutting ferrule 6 has threaded hole side to lock compression spring 5 with bolt 7, presses
Spring 5 fixes the position of locking clamp spring 8, and stud 10 and compression spring 5 form compressing structure, U-shaped pin 9 and locking clamp spring 8 on stud 10
On L-type groove coordinate and form locking mechanism, have fine through holes among adiabatic silica gel plug 11, metal sleeve 12, metal are filled in one end
Casing 12 is pressed on shielded layer 4 close to one end of compression spring 5, and the thermocouple wire working end 13 in metal sleeve 12 passes through adiabatic silicon
11 intermediate throughholes of rubber plug are stretched out, and thermocouple wire working end 13 is connected with copper sheet 15, adiabatic 11 bottom of silica gel plug and copper sheet 15
Between gap silicon rubber 14 fill.
To be surrounded by polytetrafluoroethylglass glass fiber line, wire connection terminal 1 can connect compensating wire 2 described above according to instrumentation
Line needs to select multi-form Y types or needle-like, 5 both ends of compression spring are free end, and adjustable mounting position is controlled under thermocouple
Extension elongation is held, adiabatic silica gel plug 11 is stepped ramp type, and metal sleeve 12 is filled in the side that outside diameter is equal to 12 internal diameter of metal sleeve, absolutely
Hot 11 opposite side outside diameter of silica gel plug is more than 12 internal diameter of metal sleeve, and less than 10 bottom internal diameter of stud, therefore stud 10 can be free
Dismounting, facilitates the installation of spring-pressing fix type thermocouple.
Beneficial effects of the present invention：The present invention provides a kind of spring-pressing fix type thermocouple, adiabatic silica gel plug lower outer diameter
More than metal sleeve internal diameter, less than stud bottom internal diameter, stud can be dismantled freely, facilitate the peace of spring-pressing fix type thermocouple
Dress；Using copper sheet, copper sheet is softer, and heat conductivility is fabulous, can reduce thermal contact resistance during measurement；Pass through adiabatic silica gel plug
Metal sleeve and copper sheet are separated with the silicon rubber of filling, while making metal sleeve performance pressure-bearing and protective effect, its heat
Appearance does not interfere with measurement of the thermocouple to testee, makes the accuracy of thermocouple during measurement and sensitivity has and carries significantly
Rise；And copper sheet is smaller, thermal conductivity is high, it may be determined that the point position of thermocouple reality, can accurately measure required
The temperature of position, this is most important to measurement body surface temperature.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 and Fig. 3 is bottom partial schematic diagram of the present invention；
Wherein, 1 is wire connection terminal, and 2 be compensating wire, and 3 be heat-shrinkable T bush, and 4 be shielded layer, and 5 be compression spring, and 6 be to lock cutting ferrule, 7
It is locking clamp spring for bolt, 8,9 be U-shaped pin, and 10 be stud, and 11 be adiabatic silica gel plug, and 12 be stainless steel metal casing, and 13 be heat
Thermocouple wire working end, 14 be silicon rubber filling layer, and 15 be copper sheet.
Embodiment
The thermocouple wire for selecting difference to divide symbol can be needed according to measurement, thermocouple wire one end is connected with compensating wire 2, mends
Conducting wire 2 is repaid to be surrounded by polytetrafluoroethylglass glass fiber line, 2 other end of compensating wire is equipped with wire connection terminal 1, and wire connection terminal 1 can root
Need to select multi-form according to instrumentation line, select Y types, 2 peripheral hardware stainless steel mesh grid shielded layer 4 of compensating wire, can shield
Interference is covered, one section of heat-shrinkable T bush 3 is housed in shielded layer 4 and 2 transition position of compensating wire, compression spring 5 is sleeved on outside shielded layer 4,5 liang of compression spring
End is free end, and adjustable mounting position controls thermocouple lower end extension elongation, is boundary with compression spring 5,5 side of compression spring is equipped with
Heat-shrinkable T bush 3, compensating wire 2, opposite side be equipped with locking clamp spring 8, stud 10, adiabatic silica gel plug 11, stainless steel metal casing 12,
Thermocouple wire working end 13, copper sheet 15；5 diameter of compression spring need to be more than locking 8 internal diameter of clamp spring, and the position of locking clamp spring is fixed with this
Put, 10 outside diameter of stud is more than 5 internal diameter of compression spring, and internal diameter is less than 5 outside diameter of compression spring, forms compressing structure, and the U-shaped pin 9 on stud 10 can
Coordinate with the L-type groove on locking clamp spring 8, form locking mechanism, lock 6 one side opening of cutting ferrule, opposite side has threaded hole, with spiral shell
Bolt 7, which coordinates, can lock compression spring, and adiabatic silica gel plug 11 is stepped ramp type, and there are fine through holes in centre, and stepped ramp type side outside diameter is equal to metal
12 internal diameter of casing, therefore stepped ramp type side can be filled in metal sleeve 12 to fix, metal sleeve head is pressed on shielded layer 4
On, adiabatic 11 opposite side outside diameter of silica gel plug is more than 12 internal diameter of metal sleeve, and less than 10 internal diameter of stud, therefore stud 10 can freely be torn open
Unload, facilitate the installation of spring-pressing fix type thermocouple, the thermocouple working end 13 in metal sleeve 12 is passed through in adiabatic silica gel plug 11
Between through hole stretch out, working end is welded on copper sheet 15 by spot welding, between adiabatic 11 bottom of silica gel plug and copper sheet 15
Gap silicon rubber 13 is filled.Before measurement, first stud 12 is connected through a screw thread and is fixed on testee, then heat will be welded with
The copper sheet 15 of galvanic couple working end 13 is close on testee, is then tightened the bolt 7 on locking cutting ferrule 6, is finally screwed on lock
Tight clamp spring 8.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications should also regard
For protection scope of the present invention.
Claims (6)
- A kind of 1. spring-pressing fix type thermocouple, it is characterised in that compression spring（5）Side is equipped with heat-shrinkable T bush（3）, compensating wire（2）, Opposite side is equipped with locking clamp spring（8）, stud（10）, adiabatic silica gel plug（11）, stainless steel metal casing（12）, thermocouple wire work End（13）, copper sheet（15）；Compensating wire（2）One end is equipped with wire connection terminal（1）, compensating wire（2）The other end and thermocouple wire Connection, compensating wire（2）Outer provided with shielding layer（4）, in shielded layer（4）With compensating wire（2）Transition position is equipped with one section of heat-shrinkable T bush （3）, compression spring（5）It is sleeved on shielded layer（4）Outside, compression spring（5）There is locking cutting ferrule outside（6）, lock cutting ferrule（6）One side opening, opposite side There is threaded hole, locking cutting ferrule 6 has threaded hole side to lock compression spring with bolt 7（5）, compression spring（5）Fixed locking clamp spring（8）'s Position, stud（10）With compression spring（5）Form compressing structure, stud（10）On U-shaped pin（9）With locking clamp spring（8）On L-type groove Coordinate and form locking mechanism, adiabatic silica gel plug（11）There are fine through holes in centre, and metal sleeve is filled in one end（12）, metal sleeve （12）Close to compression spring（5）One end be pressed on shielded layer（4）On, metal sleeve（12）Interior thermocouple wire working end（13）Pass through Adiabatic silica gel plug（11）Intermediate throughholes are stretched out, thermocouple wire working end（13）With copper sheet（15）Connection, adiabatic silica gel plug（11） Bottom and copper sheet（15）Between gap silicon rubber（14）Filling.
- 2. spring-pressing fix type thermocouple according to claim 1, it is characterised in that compensating wire（2）To be surrounded by polytetrafluoro Ethene glass wire.
- 3. spring-pressing fix type thermocouple according to claim 1, it is characterised in that wire connection terminal（1）For Y types or needle-like.
- 4. spring-pressing fix type thermocouple according to claim 1, it is characterised in that compression spring（5）Both ends be free end with Installation site is adjusted to control thermocouple lower end extension elongation.
- 5. spring-pressing fix type thermocouple according to claim 1, it is characterised in that by spot welding mode by thermocouple wire work Make end（13）It is welded on copper sheet（15）On.
- 6. spring-pressing fix type thermocouple according to claim 1, it is characterised in that adiabatic silica gel plug（11）For stepped ramp type, Outside diameter is equal to metal sleeve（12）Metal sleeve is filled in the side of internal diameter（12）；Adiabatic silica gel plug（11）Opposite side outside diameter is more than gold Belong to casing（12）Internal diameter, less than stud（10）Internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029769.4A CN108036871A (en) | 2018-01-12 | 2018-01-12 | A kind of spring-pressing fix type thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029769.4A CN108036871A (en) | 2018-01-12 | 2018-01-12 | A kind of spring-pressing fix type thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036871A true CN108036871A (en) | 2018-05-15 |
Family
ID=62099353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810029769.4A Pending CN108036871A (en) | 2018-01-12 | 2018-01-12 | A kind of spring-pressing fix type thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036871A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636557A (en) * | 2022-01-10 | 2022-06-17 | 中国安全生产科学研究院 | Engine tail flame temperature testing device and temperature field reconstruction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072221U (en) * | 1990-05-18 | 1991-02-27 | 浙江省鄞县热电偶厂 | Spring-pressing fix type thermocouple |
| CN201444089U (en) * | 2008-12-29 | 2010-04-28 | 绍兴春晖自动化仪表有限公司 | Aerospace low-temperature sensor |
| CN203148582U (en) * | 2012-11-07 | 2013-08-21 | 成都飞机设计研究所 | Non-adhibition type surface temperature-measuring thermocouple |
| CN203732174U (en) * | 2014-01-18 | 2014-07-23 | 淄博飞雁先行测控技术有限公司 | Penetration type platinum-resistance-thermometer temperature measuring device |
| CN105466588A (en) * | 2014-08-24 | 2016-04-06 | 哈尔滨理大晟源科技开发有限公司 | Compressed spring fixing-type thermocouple and temperature measurement method |
| CN106996836A (en) * | 2017-04-20 | 2017-08-01 | 安徽春辉仪表线缆集团有限公司 | A kind of thermocouple structure of heat conduction measurement |
| CN207964109U (en) * | 2018-01-12 | 2018-10-12 | 南京航空航天大学 | A kind of spring-pressing fix type thermocouple |
-
2018
- 2018-01-12 CN CN201810029769.4A patent/CN108036871A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072221U (en) * | 1990-05-18 | 1991-02-27 | 浙江省鄞县热电偶厂 | Spring-pressing fix type thermocouple |
| CN201444089U (en) * | 2008-12-29 | 2010-04-28 | 绍兴春晖自动化仪表有限公司 | Aerospace low-temperature sensor |
| CN203148582U (en) * | 2012-11-07 | 2013-08-21 | 成都飞机设计研究所 | Non-adhibition type surface temperature-measuring thermocouple |
| CN203732174U (en) * | 2014-01-18 | 2014-07-23 | 淄博飞雁先行测控技术有限公司 | Penetration type platinum-resistance-thermometer temperature measuring device |
| CN105466588A (en) * | 2014-08-24 | 2016-04-06 | 哈尔滨理大晟源科技开发有限公司 | Compressed spring fixing-type thermocouple and temperature measurement method |
| CN106996836A (en) * | 2017-04-20 | 2017-08-01 | 安徽春辉仪表线缆集团有限公司 | A kind of thermocouple structure of heat conduction measurement |
| CN207964109U (en) * | 2018-01-12 | 2018-10-12 | 南京航空航天大学 | A kind of spring-pressing fix type thermocouple |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636557A (en) * | 2022-01-10 | 2022-06-17 | 中国安全生产科学研究院 | Engine tail flame temperature testing device and temperature field reconstruction method |
| CN114636557B (en) * | 2022-01-10 | 2023-03-07 | 中国安全生产科学研究院 | Engine tail flame temperature testing device and temperature field reconstruction method |
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