CN208688676U - A kind of thermocouple probe - Google Patents
A kind of thermocouple probe Download PDFInfo
- Publication number
- CN208688676U CN208688676U CN201821375103.6U CN201821375103U CN208688676U CN 208688676 U CN208688676 U CN 208688676U CN 201821375103 U CN201821375103 U CN 201821375103U CN 208688676 U CN208688676 U CN 208688676U
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- China
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- inner sleeve
- thermocouple
- outer tube
- diameter
- spring
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Abstract
A kind of thermocouple probe, including outer tube, inner sleeve, thermocouple and spring.It is stairstepping outside outer tube, inner sleeve is mounted in outer tube, is stairstepping outside inner sleeve, for the installation of TC in inner sleeve, spring is stairstepping, and spring is mounted on outside outer tube.When the utility model is used to measure the temperature of sample surfaces, do not need to be fixed using adhesive or adhesive tape, it is easy to use and reduce influence of the measurement to the temperature of sample.
Description
Technical field
The present invention relates to a kind of thermocouple assay probe more particularly to a kind of surface temperature for measuring the lesser sample of thermal capacity
The thermocouple assay of degree is popped one's head in.
Background technique
The common temperature measuring tool of thermocouple.Thermocouple probe is divided into armoured thermocouple probe and bare thermocouple is visited
Head, armoured thermocouple probe is suitble to the temperature of measurement fluid, and measures solid physical surfaces temperature and generally use exposed hot spot head
Probe.Using bare thermocouple probe measurement physical surface temperature when, need for thermocouple to be fixed on body surface, it is common
Thermocouple fixing means includes: that adhesive is fixed, and adhesive tape is fixed.The surface temperature measurement of sample lesser for thermal capacity, with
Upper fixing means has following problems.
1) fixation procedure is more troublesome, and especially adhesive is fixed, and needs that adhesive is waited to be fully cured.
2) the fixed space needed of thermocouple is larger, and the range of adhesive or adhesive tape covering is generally thermocouple probe covering
Several times to tens times of area, this leads to that multiple thermocouples cannot be simutaneously arranged in lesser area, is not also suitable for narrow
The measurement of the temperature of space or recessed position.
3) fixed using adhesive, generally it is difficult to remove due to being measured rear adhesive, so cannot be used for non-broken
The measurement of bad property.
4) there is certain thermal capacitance to use adhesive for the test sample of thermal capacity very little itself for adhesive and adhesive tape
It is fixed with adhesive tape, the accuracy of measurement result can be seriously affected.
5) after fixing using adhesive or adhesive tape, the heat dissipation feelings of test sample surface near thermocouple position are changed
Condition, the result measured and temperature the case where not covering adhesive or adhesive tape are inconsistent.Test for thermal capacity very little itself
Sample, this influence are even more serious.
Summary of the invention
The purpose of the present invention is to provide the spies of the thermocouple assay of the surface temperature for measuring the lesser sample of thermal capacity
Head.
In order to achieve the above objectives, technical scheme is as follows.
A kind of thermocouple probe, comprising: outer tube, inner sleeve, thermocouple and spring.
The outer shape of outer tube is step type, is divided into three sections, upper section middle section and lower section outer diameter are sequentially increased；Interior shape
For straight tube circle.
Inner sleeve is mounted in outer tube；The outer shape of inner sleeve is step type, is divided into two sections, lower section diameter compares upper section
Diameter is big；Interior shape is that straight tube is round；It is loose fit between inner sleeve and outer tube, inner sleeve can be in outer tube freely
Sliding；Inner sleeve tube material is copper, iron, aluminium, aluminium alloy or stainless steel metal.
The installation of TC is in inner sleeve；The electrode line and negative line of thermocouple all wrap up insulation in the part of inner sleeve
Skin, the electrode line and negative line fusion point of thermocouple end expose the lower end 1-5mm of inner sleeve；Thermocouple is in the lower end of inner sleeve
It is fixed in inner sleeve by way of compressing inner sleeve.
Spring is mounted on outside outer tube；The outer shape of spring is step type, and one end is relatively large in diameter, other end diameter
It is smaller；Biggish one end is mounted on the upper section of outer tube by tight fit.It is smaller that the upper section of inner sleeve can pass through spring diameter
One end, the lower section of inner sleeve cannot pass through the lesser one end of spring diameter.
The utility model has the advantage of following several respects.
1) probe thermal capacitance is small, influences on the temperature of test sample small.Due to there was only thermocouple electrode line and negative line welding
Point contact test sample, therefore the hot melt popped one's head in is small, it is small on the influence of the temperature of test sample, it is highly suitable for thermal capacity itself
The surface temperature of small test sample is tested.
2) test result is stablized.In thermocouple assay, the size of the contact pressure of thermocouple probe and sample will affect heat
The transmitting of amount, therefore have an impact to the stability of test result, the thermocouple probe of the utility model provides pressure by spring,
It is contacted with test sample surface, cooperates fixture in use, stable contact pressure can be provided, to obtain stable test knot
Fruit.
3) practical and convenient, without using adhesive and adhesive tape.
4) probe occupies little space, and is suitable for arrangement multipoint thermocouple very in narrow space and measures temperature, can be with
Temperature suitable for recessed position measures.
5) measurement result is true, due to using adhesive and adhesive tape, has substantially no effect on the heat dispersal situations on sample surface,
Therefore measurement result is true.
Detailed description of the invention
Fig. 1 is the sectional view of the utility model.
Specific embodiment
Referring to Fig. 1.A kind of thermocouple probe, comprising: outer tube 101, inner sleeve 102, thermocouple 103 and spring 104.
The outer shape of outer tube 101 is step type, is divided into three sections, upper section middle section and lower section outer diameter are sequentially increased；It is internal
Shape is that straight tube is round.
Inner sleeve 102 is mounted in outer tube 101；The outer shape of inner sleeve 102 is step type, is divided into two sections, lower section
Diameter is bigger than upper diameter；Interior shape is that straight tube is round；It is loose fit, inner sleeve between inner sleeve 102 and outer tube 101
102 can be free to slide in outer tube 101；102 material of inner sleeve is copper, iron, aluminium, aluminium alloy or stainless steel metal.
Thermocouple 103 is mounted in inner sleeve 102；The electrode line 104 and negative line 105 of thermocouple 103 are in inner sleeve 102
Part all wrap up insulated hull 106, the electrode line 104 of 103 end of thermocouple and the fusion point 107 of negative line 105 expose inner sleeve
The lower end 2mm of pipe；Thermocouple 103 is fixed on inner sleeve by way of compressing inner sleeve 102 in the lower end of inner sleeve 102
It is interior.
Spring 108 is mounted on outside outer tube 101；The outer shape of spring 108 is step type, and one end is relatively large in diameter,
Other end diameter is smaller；Biggish one end is mounted on the upper section of outer tube 101 by tight fit.The upper section of inner sleeve 102 can be with
Across the lesser one end of 108 diameter of spring, the lower section of inner sleeve 102 cannot pass through the lesser one end of 108 diameter of spring.
In use, probe is installed on other tubuloses or the fixed structure of plate, the middle section of outer tube is fixed with other
Then the surface that probe vertical is pressed on measured sample is carried out temperature measurement by the aperture tight fit in structure.
Claims (4)
1. a kind of thermocouple probe, characterized in that include:
Outer tube, outer shape are step type, are divided into three sections, upper section, middle section and lower section outer diameter are sequentially increased, and interior shape is straight
Cylinder is round；
Inner sleeve is mounted in outer tube, and outer shape is step type, is divided into two sections, and lower section diameter is bigger than upper diameter, internal
Shape is that straight tube is round, is loose fit between inner sleeve and outer tube, inner sleeve can be free to slide in outer tube；
Thermocouple is mounted in inner sleeve；
Spring is mounted on outside outer tube, and outer shape is step type, and one end is relatively large in diameter, and other end diameter is smaller, larger
One end the upper section of outer tube is mounted on by tight fit.
2. thermocouple probe according to claim 1, characterized in that it is smaller that the upper section of inner sleeve can pass through spring diameter
One end, the lower section of inner sleeve cannot pass through the lesser one end of spring diameter.
3. thermocouple probe according to claim 1, characterized in that the electrode line and negative line of thermocouple are in inner sleeve
Insulated hull is all wrapped up in part, and the electrode line and negative line fusion point of thermocouple end expose the lower end 1-5mm of inner sleeve.
4. thermocouple probe according to claim 1, characterized in that thermocouple is in the lower end of inner sleeve by by inner sleeve
The mode of compression is fixed in inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821375103.6U CN208688676U (en) | 2018-08-24 | 2018-08-24 | A kind of thermocouple probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821375103.6U CN208688676U (en) | 2018-08-24 | 2018-08-24 | A kind of thermocouple probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208688676U true CN208688676U (en) | 2019-04-02 |
Family
ID=65886561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821375103.6U Active CN208688676U (en) | 2018-08-24 | 2018-08-24 | A kind of thermocouple probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208688676U (en) |
-
2018
- 2018-08-24 CN CN201821375103.6U patent/CN208688676U/en active Active
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