CN105444906B - High-sensitivity temperature sensor - Google Patents
High-sensitivity temperature sensor Download PDFInfo
- Publication number
- CN105444906B CN105444906B CN201510816453.6A CN201510816453A CN105444906B CN 105444906 B CN105444906 B CN 105444906B CN 201510816453 A CN201510816453 A CN 201510816453A CN 105444906 B CN105444906 B CN 105444906B
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- China
- Prior art keywords
- thermometal
- hole
- ball
- side wall
- wall surface
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Classifications
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- 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
- G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
- G01K1/18—Special arrangements for conducting heat from the object to the sensitive element for reducing thermal inertia
-
- 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
Abstract
The present invention provides a kind of high-sensitivity temperature sensors, box body, N-1 thermometal ball and two instlated tubulars including a positive N prism-shaped, the continuous N-1 side wall surface of box body offers first through hole, each thermometal ball is connected in a first through hole, and heat-insulated binder is filled between thermometal ball and the inner wall of first through hole, which is sequentially connected in series by metal wire；Second through-hole there are two being opened up in another side wall surface of box body, two instlated tubulars are plugged in two the second through-holes, thermometal ball on the two side walls face adjacent with the side wall surface for opening up two the second through-holes is respectively welded a connecting wire, the free end of two connecting wires is each passed through two instlated tubulars, the inside for opening up the side wall surface there are two the second through-hole is filled with the first adiabatic gum of a predetermined thickness, and full second adiabatic gum is also filled up between the intracorporal gap of the box.The present invention has the beneficial effect for improving sensitivity.
Description
Technical field
The present invention relates to sensor field, in particular to a kind of high-sensitivity temperature sensor.
Background technique
Sensor is a kind of device that physical quantity or chemical quantity can be transformed into the electric signal convenient for utilizing.International Power committee
The definition of member's meeting is that " sensor is the preposition component of one of measuring system, the letter that input variable is converted into for measurement by it
Number ".Industrial common temperature sensor has four classes: i.e. thermocouple, thermal resistance, thermistor and Integrated Circuit Temperature sensing
Device；Every one kind temperature sensor has oneself unique temperature measurement range, the temperature environment for having oneself applicable；There is no a kind of temperature
Sensor can be common to all purposes: the observable temperature widest range of thermocouple.But current temperature sensor is also deposited
The problems such as temperature-sensitive is inaccurate.Therefore, it is necessary to a kind of novel temperature sensors.
Therefore, the prior art is defective, needs to improve.
Summary of the invention
Present invention is primarily intended in view of the drawbacks of the prior art, provide a kind of high-sensitivity temperature sensor.
The present invention provides a kind of high-sensitivity temperature sensors, box body, N-1 temperature-sensitive gold including a positive N prism-shaped
Belong to ball and two instlated tubulars, the continuous N-1 side wall surface of the box body offer first through hole, each thermometal
Ball is connected in a first through hole, and between the thermometal ball and the inner wall of the first through hole filled with every
Hot adhesion agent, the N-1 thermometal balls are sequentially connected in series by metal wire；The N is the integer more than or equal to 4；
Second through-hole there are two opening up in another side wall surface of the box body, described two instlated tubulars are plugged on described two
Thermometal ball difference in second through-hole, on the two side walls face adjacent with the side wall surface for opening up two the second through-holes
It is welded with a connecting wire, the free end of two connecting wires is each passed through described two instlated tubulars, this is opened up, and there are two the
The inside of the side wall surface of two through-holes is filled with the first adiabatic gum of a predetermined thickness, and full second is also filled up between the intracorporal gap of the box
Adiabatic gum.
In high-sensitivity temperature sensor provided by the invention, each first through hole is opened in corresponding side wall surface
Middle part.
In high-sensitivity temperature sensor provided by the invention, the outer side surface of each thermometal ball is equipped with
Inoxidzable coating.
In high-sensitivity temperature sensor provided by the invention, the thermal conductivity of first adiabatic gum is less than described second
The thermal conductivity of adiabatic gum.
In high-sensitivity temperature sensor provided by the invention, the box body is positive pentagonal prism shape.
Implement high-sensitivity temperature sensor provided by the invention to have the advantages that
It is electric when for variation of ambient temperature since the high-sensitivity temperature sensor is provided with multiple thermometal balls
It is bigger to hinder variable quantity, and since each thermometal ball is all set in different side wall surfaces, is spaced apart from each other farther out, therefore is every
Influence of the heat that one thermometal ball issues for other thermometal balls is smaller, to further improve sensitivity.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of the high-sensitivity temperature sensor in one embodiment of the present invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Fig. 1 shows one of first embodiment of the invention high-sensitivity temperature sensor, including a positive N prism-shaped
The continuous N-1 side wall surface of box body 10, N-1 thermometal ball 20 and two instlated tubulars 40, the box body 10 offers
First through hole, each thermometal ball 20 is connected in a first through hole, and the thermometal ball 20 and institute
It states filled with heat-insulated binder between the inner wall of first through hole, the N-1 thermometal balls 20 pass through metal wire successively
Concatenation；The N is the integer more than or equal to 4；
It is opened up in another side wall surface of the box body 10 there are two the second through-hole, described two instlated tubulars 40 are plugged on described
Thermometal ball in two the second through-holes, on the two side walls face adjacent with the side wall surface for opening up two the second through-holes
20 are respectively welded a connecting wire 30, and the free end of two connecting wires 30 is each passed through described two instlated tubulars 40, should
The inside for opening up the side wall surface there are two the second through-hole is filled with the first adiabatic gum 60 of a predetermined thickness, the sky in the box body 10
Full second adiabatic gum 50 is also filled up between gap.
Since the high-sensitivity temperature sensor is provided with multiple thermometal balls 20, when for variation of ambient temperature
Resistance change is bigger, improves sensitivity, and since each thermometal ball 20 is all set in different side wall surfaces, phase
It is mutually spaced farther out, therefore influence of the heat of each thermometal ball 20 sending for other thermometal balls 20 is more
It is small, to further improve sensitivity.
Preferably, in high-sensitivity temperature sensor provided by the invention, each first through hole is opened in pair
Answer the middle part of side wall surface.So that distance is more balanced between two neighboring thermometal ball 20, be conducive to reduce two neighboring heat
Heat interference between sensitized metal ball 20.
Preferably, in high-sensitivity temperature sensor provided by the invention, the outside of each thermometal ball 20
Wall surface is equipped with inoxidzable coating.
Preferably, in high-sensitivity temperature sensor provided by the invention, the thermal conductivity of first adiabatic gum 60 is small
In the thermal conductivity of second adiabatic gum 50.
Preferably, in high-sensitivity temperature sensor provided by the invention, the box body 10 is positive pentagonal prism shape, works as heat
It may be regular hexagonal prism.
Implement high-sensitivity temperature sensor provided by the invention to have the advantages that
It is electric when for variation of ambient temperature since the high-sensitivity temperature sensor is provided with multiple thermometal balls
It is bigger to hinder variable quantity, and since each thermometal ball is all set in different side wall surfaces, is spaced apart from each other farther out, therefore is every
Influence of the heat that one thermometal ball issues for other thermometal balls is smaller, to further improve sensitivity.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (4)
1. a kind of high-sensitivity temperature sensor, which is characterized in that box body, N-1 thermometal ball including a positive N prism-shaped
And two instlated tubulars, the continuous N-1 side wall surface of the box body offer first through hole, each thermometal ball is equal
It is connected in a first through hole, and filled with heat-insulated viscous between the thermometal ball and the inner wall of the first through hole
Agent is tied, the N-1 thermometal balls are sequentially connected in series by metal wire；The N is the integer more than or equal to 4；
It is opened up in another side wall surface of the box body there are two the second through-hole, described two instlated tubulars are plugged on described two second
In through-hole, the thermometal ball on the two side walls face adjacent with the side wall surface for opening up two the second through-holes is respectively welded
There is a connecting wire, the free end of two connecting wires is each passed through described two instlated tubulars, this opens up logical there are two second
The inside of the side wall surface in hole is filled with the first adiabatic gum of a predetermined thickness, and it is heat-insulated that full second is also filled up between the intracorporal gap of the box
Glue, the thermal conductivity of first adiabatic gum are less than the thermal conductivity of second adiabatic gum.
2. high-sensitivity temperature sensor according to claim 1, which is characterized in that each first through hole opens up
In the middle part of corresponding side wall surface.
3. high-sensitivity temperature sensor according to claim 1, which is characterized in that outside each thermometal ball
Side wall surface is equipped with inoxidzable coating.
4. high-sensitivity temperature sensor according to claim 1, which is characterized in that the box body is positive pentagonal prism shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816453.6A CN105444906B (en) | 2015-11-23 | 2015-11-23 | High-sensitivity temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816453.6A CN105444906B (en) | 2015-11-23 | 2015-11-23 | High-sensitivity temperature sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105444906A CN105444906A (en) | 2016-03-30 |
| CN105444906B true CN105444906B (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510816453.6A Active CN105444906B (en) | 2015-11-23 | 2015-11-23 | High-sensitivity temperature sensor |
Country Status (1)
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| CN (1) | CN105444906B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112667008A (en) * | 2020-12-16 | 2021-04-16 | 惠州城市职业学院(惠州商贸旅游高级职业技术学校) | Intelligent temperature control system for leaf vegetable greenhouse |
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| CN205280223U (en) * | 2015-11-23 | 2016-06-01 | 惠州学院 | High sensitivity temperature sensor |
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2015
- 2015-11-23 CN CN201510816453.6A patent/CN105444906B/en active Active
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| DE19540625A1 (en) * | 1995-10-31 | 1997-05-07 | Kriwan Ind Elektronik Gmbh | Protective circuit and device for temperature monitoring of device or machine |
| JPH11142245A (en) * | 1997-11-10 | 1999-05-28 | Horiba Ltd | Thermal infrared detector |
| CN1352381A (en) * | 2001-12-10 | 2002-06-05 | 武汉大学 | Circular thermopile temperature sensor |
| CN2824171Y (en) * | 2005-09-16 | 2006-10-04 | 张卫社 | Discrete thermistor series analog quantity line type temp sensing fire detecting cable |
| JP2008151535A (en) * | 2006-12-14 | 2008-07-03 | Matsushita Electric Ind Co Ltd | Temperature detection circuit and battery pack |
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| CN105444906A (en) | 2016-03-30 |
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