CN106556471B - Insert permeability type temperature sensor - Google Patents
Insert permeability type temperature sensor Download PDFInfo
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- CN106556471B CN106556471B CN201611036431.9A CN201611036431A CN106556471B CN 106556471 B CN106556471 B CN 106556471B CN 201611036431 A CN201611036431 A CN 201611036431A CN 106556471 B CN106556471 B CN 106556471B
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- probe
- temperature
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- 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
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention proposes that a kind of inserting permeability type temperature sensor, shell are divided into mounting portion and probe portion, and the inside of probe portion is equipped with temperature-sensitive element and insulating part, is filled with heat conductive silica gel around temperature-sensitive element；Probe is pressed together on the electrode of temperature-sensitive element by spring；The lower end outside of probe portion is covered with infrared absorbing film, and infrared absorbing film is located at the periphery of temperature-sensitive element；Venthole is offered on the side wall of mounting portion.The configuration of the present invention is simple, design are reasonable；The present invention, as probe portion, has many advantages, such as light-weight, corrosion-resistant, resistance to ablation, high rigidity, wear-resistant, high temperature resistant and low-temperature resistance embrittlement using thermally conductive carbon fibre material；Temperature-sensitive element is fixed and can be conducted heat by heat conductive silica gel, improves sensitivity and anti-seismic performance；Positive probe and negative probe are pressed together under the pressure of the spring on the positive electrode and negative electrode of temperature-sensitive element, and when thermal expansion and contraction occurs in probe, spring can adjust the pressure of probe and electrode at any time, realize reliable electrical connection.
Description
Technical field
The present invention relates to electrical accessorie technical field, specifically a kind of inserting permeability type temperature sensor.
Background technique
Temperature sensor (temperature transducer), which refers to, can experience temperature and be converted into usable output signal
Sensor.
Currently on the market, the protection pipe of temperature sensor uses the materials such as metal tube, ceramic tube or metal tube surface coating,
But metal tube temperature resistant range is used for a long time and is no more than 1200 DEG C or so, corrosion-resistant range is also subject to certain restrictions, such as bases,
Salt acids medium, metal pipe material be difficult to solve the problems, such as it is corrosion-resistant, if using noble metal material anti-corrosion cost again it is very expensive；
Ceramic tube (including alundum tube) although can it is corrosion-resistant and tolerance a certain range (1600 DEG C or so) high temperature, not only pole hold
Easy fracture damage, and the long influence sensitivity of thermometry of thermal response time.Also, either metal tube or ceramic tube resist low temperature
Embrittlement ability is all very limited.
In addition, there is following both sides disadvantages for temperature sensor in the prior art, on the one hand due to sensor top
End is not in contact with sensor protective sleeve inner cavity top, due to the vibration that equipment generates during operation, will lead to temperature
Degree sensor is easy to happen loosening, falls off；On the other hand, simultaneously due to temperature sensor and sensor protective sleeve
It is not directly to be in contact, so that temperature sensor sensitivity is not high, to influence the functional reliability of temperature sensor.
Summary of the invention
The present invention proposes a kind of inserting permeability type temperature sensor, solve temperature sensor in the prior art easily loosen,
It falls off, the problems such as sensitivity is low, poor corrosion resistance.
The technical scheme of the present invention is realized as follows:
A kind of inserting permeability type temperature sensor, including shell, the shell are divided into the mounting portion of upper end and the spy of lower end
Head；
The inside of the probe portion has a cavity, and the lower end of the cavity is equipped with temperature-sensitive element, the temperature-sensitive element it is upper
Side has positive electrode and negative electrode；It is equipped with insulating part in cavity above the temperature-sensitive element, has first in the insulating part
Positive through-hole and the first negative through-hole；
Heat conductive silica gel is filled in cavity around the temperature-sensitive element, have in the heat conductive silica gel the second positive through-hole and
Second negative through-hole；
The mounting portion has the positive through-hole of third and the negative through-hole of third；
The first positive through-hole, the second positive through-hole and the positive through-hole of third connect into one and are located at just leading to above the positive electrode
Hole, the first negative through-hole, the second negative through-hole and the negative through-hole of third connect into a negative through-hole being located above the negative electrode；
It is equipped with a positive fixing piece in the positive through-hole of third, there is a positive punch on the positive fixing piece；The positive fixation
A positive spring, the lower end connection one of the positive spring just insulation sliding block, the lower end of the positive insulation sliding block are connected with below part
A positive probe is connected, the positive probe passes through the positive through-hole and is resisted against on the positive electrode, the upper end connection of the positive probe
There is positive lead, the positive lead draws the mounting portion through the positive punch；
It is equipped with a negative fixing piece in the negative through-hole of third, there is a negative perforation on the negative fixing piece；The negative fixation
A negative spring is connected with below part, the lower end of the negative spring connects a negative insulation sliding block, the lower end of the negative insulation sliding block
A negative probe is connected, the negative probe passes through the negative through-hole and is resisted against on the negative electrode, the upper end connection of the negative probe
There is negative lead, the negative lead draws the mounting portion through the negative perforation；
Positive venthole and negative venthole are offered on the side wall of the mounting portion, the positive venthole and the third are just logical
Hole connection, the negative venthole are connected to the negative through-hole of the third；The position of the positive venthole is lower than the positive insulation sliding block,
The position of the negative venthole is lower than the negative insulation sliding block；
The lower end outside of the probe portion is covered with infrared absorbing film, and the infrared absorbing film is located at the thermal element
The periphery of part.
Further, the middle part of the mounting portion, which has, surrounds one week convex edge of mounting portion, below the convex edge
Mounting portion is equipped with external screw thread.
Further, the insulating part is ceramic member.
Further, the temperature-sensitive element is thermistor.
Further, the probe portion uses thermally conductive carbon fibre material.
The invention has the benefit that
Inserting permeability type arrangement of temperature sensor of the invention is simple, and design is reasonable；The present invention uses thermally conductive carbon fiber material
Material is used as probe portion, has many advantages, such as light-weight, corrosion-resistant, resistance to ablation, high rigidity, wear-resistant, high temperature resistant and low-temperature resistance embrittlement；
Temperature-sensitive element is fixed and can be conducted heat by heat conductive silica gel, improves sensitivity and anti-seismic performance；Positive probe and negative probe
It is pressed together on the positive electrode and negative electrode of temperature-sensitive element under the pressure of the spring, when there is thermal expansion and contraction in probe, spring
The pressure of probe and electrode can be adjusted at any time, realize reliable electrical connection；When sensor internal because air pressure change occurs in temperature change
When, it can be taken a breath by venthole, reduce influence of the air pressure to insulation sliding block and spring, improve the service life of spring.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the invention；
Fig. 2 is the mounting portion enlarged structure schematic diagram of embodiment in Fig. 1；
Fig. 3 is the lower end enlarged structure schematic diagram of embodiment in Fig. 1.
Wherein:
1, mounting portion；2, probe portion；3, convex edge；4, external screw thread；5, temperature-sensitive element；6, positive electrode；7, negative electrode；8, it insulate
Part；9, the first positive through-hole；10, the first negative through-hole；11, heat conductive silica gel；12, the second positive through-hole；13, the second negative through-hole；14, third
Positive through-hole；15, the negative through-hole of third；16, positive fixing piece；17, positive punch；18, positive spring；19, just insulate sliding block；20, positive probe；
21, positive lead；22, negative fixing piece；23, perforation is born；24, negative spring；25, insulation sliding block is born；26, negative probe；27, negative lead；
28, infrared absorbing film；29, positive venthole；30, negative venthole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1-Figure 3, the inserting permeability type temperature sensor in the present embodiment, including shell, the shell are divided into
The mounting portion 1 of upper end and the probe portion 2 of lower end；In the present embodiment, the shell is axisymmetric cylinder；The mounting portion 1
Middle part, which has, surrounds 1 one weeks convex edges of mounting portion 3, and the mounting portion 1 of 3 lower section of convex edge is equipped with external screw thread 4；The spy
Head 2 is the cylinder of lower end closed, upper end opening, and the upper end of the probe portion 2 and the lower end of the mounting portion 1 are connected to one
It rises；When the probe portion 2 is inserted into determinand, the convex edge 3 is fastened on determinand surface, passes through 4 spiral shell of external screw thread of mounting portion 1
It closes on the test object；The probe portion 2 is had using thermally conductive carbon fibre material using thermally conductive carbon fibre material as probe portion 2
The advantages that light-weight, corrosion-resistant, resistance to ablation, high rigidity, wear-resistant, high temperature resistant and low-temperature resistance embrittlement.
The inside of the probe portion 2 has cavity, and cavity extends to lower end from the upper end of probe portion 2.Under the cavity
End is equipped with temperature-sensitive element 5, and temperature-sensitive element 5 uses thermistor in the present embodiment, can also be using other temperature-sensitive elements 5.Institute
The top for stating temperature-sensitive element 5 has positive electrode 6 and negative electrode 7；It is equipped with insulating part 8 in the cavity of 5 top of temperature-sensitive element, this
In embodiment, insulating part 8 uses ceramic member, specially a cylindrical body, which can just accommodate in the cavity；It should
The upper end of cylindrical body is bonded with mounting portion 1, and lower end is located at the top of temperature-sensitive element 5；There is the first positive through-hole in the insulating part 8
9 and the first negative through-hole 10.
It is filled with heat conductive silica gel 11 in cavity around the temperature-sensitive element 5, has in the heat conductive silica gel 11 second just
Through-hole 12 and the second negative through-hole 13；Temperature-sensitive element 5 can be realized and be fixed by heat conductive silica gel 11, and temperature-sensitive element 5 is avoided to be shaken
Shi Rongyi is loosened, is fallen, while heat conductive silica gel 11 can also improve heat transfer efficiency, improves sensitivity.
The mounting portion 1 has the positive through-hole 14 of third and the negative through-hole 15 of third.
The first positive through-hole 9, the second positive through-hole 12 and the positive through-hole 14 of third connect into one and are located at 6 top of positive electrode
Positive through-hole, the first negative through-hole 10, the second negative through-hole 13 and the negative through-hole 15 of third connect into one be located at the negative electrode 7 on
The negative through-hole of side.
It is equipped with a positive fixing piece 16 in the positive through-hole 14 of third, the positive fixing piece 16 is fixed on the positive through-hole of the third
In 14, there is a positive punch 17 on the positive fixing piece 16；The lower section of the positive fixing piece 16 is connected with a positive spring 18, described
The lower end connection one of positive spring 18 just insulation sliding block 19, the positive insulation sliding block 19 can be slided along the positive through-hole 14 of the third, institute
The lower end for stating positive insulation sliding block 19 connects a positive probe 20, and the positive probe 20 passes through the positive through-hole and is resisted against the positive electrode
On 6, then the upper end of positive probe 20 is fixed on the positive insulation sliding block 19, and the lower end of positive probe 20 is resisted against on positive electrode 6, institute
The upper end for stating positive probe 20 is connected with positive lead 21, and the positive lead 21 is drawn the mounting portion 1 through the positive punch 17, just drawn
Line 21 is drawn from the positive through-hole 14 of third.
It is equipped with a negative fixing piece 22 in the negative through-hole 15 of third, the negative fixing piece 22 is fixed on the negative through-hole of the third
There is a negative perforation 23 in 15, on the negative fixing piece 22；The lower section of the negative fixing piece 22 is connected with a negative spring 24, described
The lower end of negative spring 24 connects a negative insulation sliding block 25, and the negative insulation sliding block 25 can be slided along the negative through-hole 15 of the third, institute
The lower end for stating negative insulation sliding block 25 connects a negative probe 26, and the negative probe 26 passes through the negative through-hole and is resisted against the negative electrode
On 7, then the upper end of negative probe 26 is fixed on the negative insulation sliding block 25, and the lower end of negative probe 26 is resisted against on negative electrode 7, institute
The upper end for stating negative probe 26 is connected with negative lead 27, and the negative lead 27 draws the mounting portion 1 through the negative perforation 23, negative to draw
Line 27 is drawn from the negative through-hole 15 of third.
Offer positive venthole 29 and negative venthole 30 on the side wall of the mounting portion 1, the positive venthole 29 with it is described
The positive through-hole 14 of third is connected to, and the negative venthole 30 is connected to the negative through-hole 15 of the third；The position of the positive venthole 29 is low
It is lower than the negative insulation sliding block 25 in the position of the positive insulation sliding block 19, the negative venthole 30.When sensor internal is because of temperature
It when air pressure change occurs in degree variation, can be taken a breath by venthole, reduce influence of the air pressure to insulation sliding block and spring, mention
The service life of high spring.In order to avoid the influence of outer bound pair sensor, positive venthole 29 and negative venthole 30 are set as internal high, outer
The low inclined hole in portion.
The lower end outside of the probe portion 2 is covered with infrared absorbing film 28, and the infrared absorbing film 28 is located at described
The periphery of temperature-sensitive element 5.The heat radiation of determinand transmitting can be absorbed in the infrared absorbing film 28, improves sensitivity, even if
When slight deviations occurs in the position that probe portion 2 is placed, the heat radiation of determinand transmitting is still can be absorbed in infrared absorbing film 28, real
Existing precise measurement, reduces the requirement to installation accuracy.
When the present embodiment works, probe portion 2 is inserted into determinand, by the external screw thread 4 of mounting portion 1 realize with it is to be measured
The fixation of object, when fixed, the convex edge 3 is fastened on determinand surface, realizes the position-limiting action of vertical direction.Infrared absorbing film
28 absorption determinands radiation heat radiation and heat is passed sequentially through into probe portion 2, heat conductive silica gel 11 passes to temperature-sensitive element 5, heat
Quick element 5 generates the variation of electric signal under temperature change, and the variation of electric signal is passed to by positive probe 20 and negative probe 26
Positive lead 21 and negative lead 27 pass to external monitoring device again.When there is thermal expansion and contraction because of temperature change in probe,
Spring can adjust the pressure of probe and electrode at any time, realize reliable electrical connection, improve the reliability and sensitivity of the present embodiment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of inserting permeability type temperature sensor, which is characterized in that including shell, the shell be divided into upper end mounting portion and
The probe portion of lower end；
The inside of the probe portion has cavity, and the lower end of the cavity is equipped with temperature-sensitive element, and the top of the temperature-sensitive element has
There are positive electrode and negative electrode；It is equipped with insulating part in cavity above the temperature-sensitive element, has first just to lead in the insulating part
Hole and the first negative through-hole；
It is filled with heat conductive silica gel in cavity around the temperature-sensitive element, there is the second positive through-hole and second in the heat conductive silica gel
Negative through-hole；
The mounting portion has the positive through-hole of third and the negative through-hole of third；
The first positive through-hole, the second positive through-hole and the positive through-hole of third connect into a positive through-hole being located above the positive electrode,
The first negative through-hole, the second negative through-hole and the negative through-hole of third connect into a negative through-hole being located above the negative electrode；
It is equipped with a positive fixing piece in the positive through-hole of third, there is a positive punch on the positive fixing piece；The positive fixing piece
Lower section is connected with a positive spring, the lower end connection one of the positive spring just insulation sliding block, the lower end connection of the positive insulation sliding block
One positive probe, the positive probe pass through the positive through-hole and are resisted against on the positive electrode, and the upper end of the positive probe is connected with just
Lead, the positive lead draw the mounting portion through the positive punch；
It is equipped with a negative fixing piece in the negative through-hole of third, there is a negative perforation on the negative fixing piece；The negative fixing piece
Lower section is connected with a negative spring, and the lower end of the negative spring connects a negative insulation sliding block, the lower end connection of the negative insulation sliding block
One negative probe, the negative probe pass through the negative through-hole and are resisted against on the negative electrode, and the upper end of the negative probe is connected with negative
Lead, the negative lead draw the mounting portion through the negative perforation；
Positive venthole and negative venthole are offered on the side wall of the mounting portion, the positive venthole and the positive through-hole of the third connect
Logical, the negative venthole is connected to the negative through-hole of the third；The position of the positive venthole is lower than the positive insulation sliding block, described
The position of negative venthole is lower than the negative insulation sliding block；
The lower end outside of the probe portion is covered with infrared absorbing film, and the infrared absorbing film is located at the temperature-sensitive element
Periphery.
2. inserting permeability type temperature sensor as described in claim 1, which is characterized in that the middle part of the mounting portion, which has, encloses
Mounting portion below one week convex edge of mounting portion, the convex edge is equipped with external screw thread.
3. inserting permeability type temperature sensor as claimed in claim 2, which is characterized in that the insulating part is ceramic member.
4. inserting permeability type temperature sensor as claimed in claim 3, which is characterized in that the temperature-sensitive element is temperature-sensitive electricity
Resistance.
5. inserting permeability type temperature sensor as claimed in claim 4, which is characterized in that the probe portion uses thermally conductive carbon fiber
Tie up material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611036431.9A CN106556471B (en) | 2016-11-22 | 2016-11-22 | Insert permeability type temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611036431.9A CN106556471B (en) | 2016-11-22 | 2016-11-22 | Insert permeability type temperature sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106556471A CN106556471A (en) | 2017-04-05 |
| CN106556471B true CN106556471B (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611036431.9A Active CN106556471B (en) | 2016-11-22 | 2016-11-22 | Insert permeability type temperature sensor |
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| Country | Link |
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| CN (1) | CN106556471B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107099276A (en) * | 2017-05-14 | 2017-08-29 | 佛山市顺德区凯格电子实业有限公司 | A kind of soft Heat Conduction Material of heatproof and the temperature sensor for being enclosed with the material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206145A (en) * | 2006-12-21 | 2008-06-25 | 通用电气公司 | Temperature sensor |
| CN202547820U (en) * | 2012-03-02 | 2012-11-21 | 恒新基电子（青岛）有限公司 | Screw type temperature sensor |
| CN104132741A (en) * | 2013-05-01 | 2014-11-05 | 罗斯蒙特公司 | Spring-loaded temperature sensor |
| CN104848958A (en) * | 2014-11-25 | 2015-08-19 | 重庆斯凯力科技有限公司 | Exhaust temperature sensor |
| CN205642664U (en) * | 2016-05-05 | 2016-10-12 | 浙江树人大学 | Infrared ray platinum resistance temperature sensor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0797049B2 (en) * | 1986-05-27 | 1995-10-18 | 日本特殊陶業株式会社 | Method of manufacturing temperature sensor |
| JP6459757B2 (en) * | 2014-08-22 | 2019-01-30 | 株式会社デンソー | Piping arrangement for temperature sensor |
-
2016
- 2016-11-22 CN CN201611036431.9A patent/CN106556471B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206145A (en) * | 2006-12-21 | 2008-06-25 | 通用电气公司 | Temperature sensor |
| CN202547820U (en) * | 2012-03-02 | 2012-11-21 | 恒新基电子（青岛）有限公司 | Screw type temperature sensor |
| CN104132741A (en) * | 2013-05-01 | 2014-11-05 | 罗斯蒙特公司 | Spring-loaded temperature sensor |
| CN104848958A (en) * | 2014-11-25 | 2015-08-19 | 重庆斯凯力科技有限公司 | Exhaust temperature sensor |
| CN205642664U (en) * | 2016-05-05 | 2016-10-12 | 浙江树人大学 | Infrared ray platinum resistance temperature sensor |
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| CN106556471A (en) | 2017-04-05 |
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Effective date of registration: 20201116 Address after: No.008 Zijing Avenue, Chahe Industrial Park, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Yikun Medical Technology Co.,Ltd. Address before: 230000 Anhui, Hefei province by the opening of Peach Industrial Park Road, No. 8 Patentee before: HEFEI SHUSHI INDUSTRY AND TRADE Co.,Ltd. |