CN101988853A - Temperature sensor - Google Patents
Temperature sensor Download PDFInfo
- Publication number
- CN101988853A CN101988853A CN2010102432459A CN201010243245A CN101988853A CN 101988853 A CN101988853 A CN 101988853A CN 2010102432459 A CN2010102432459 A CN 2010102432459A CN 201010243245 A CN201010243245 A CN 201010243245A CN 101988853 A CN101988853 A CN 101988853A
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- sensible heat
- temperature sensor
- absorbing film
- film
- infrared
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Abstract
The present invention provides a temperature sensor which can be set closely with an object to be measured and can accurately measure a surface temperature even partial densities are different. The temperature sensor is provided with the following components: an infrared ray absorbing film (2) which is set on a measured object (B); a plurality of heat sensing components (3) which are spaced from one another on the infrared ray absorbing film (2); and a wiring (4) which is connected with the heat sensing components (3). Therefore, the infrared ray absorbing film (2) absorbs the infrared ray which is transmitted from the surface of the measured object (B) of the infrared ray absorbing film (2). Simultaneously the plurality of heat sensing components (3) arranged on the infrared ray absorbing film (2) are used for detecting the transmitted heat thereby detecting an average temperature or temperature distribution of the setting surface.
Description
Technical field
The present invention relates to be arranged on the determinands such as battery the temperature sensor that the surface temperature of this determinand is measured.
Background technology
When the surface temperature of determinand being measured in the past, thermistor (thermistor, サ one ミ ス タ) element equitemperature sensor for example is set on the surface of determinand carries out temperature measuring.At this moment, can carry out temperature measuring, therefore, just a plurality of temperature sensors need be set on the surface of determinand for the surface of determinand Temperature Distribution whole or certain zone is carried out temperature measuring to the point (Port イ Application ト) that is provided with temperature sensor.
In addition, as method of temperature is measured with face in the surface of determinand, known have an optical device such as the infrared imaging sensor of use, receives the method that infrared ray that radiation produces carries out temperature measuring of passing through by the surface radiation of determinand.For example, in patent documentation 1, non-contact temperature sensor has been proposed, this non-contact temperature sensor is the temperature sensor of noncontact mensuration as the surface temperature of the hot-rolling of determinand, wherein, on near hot-rolling surface, the infrared ray permeability film that kept non-contactly, has thermistor element with the infrared absorbing glass heat-sealing.
Patent documentation 1: TOHKEMY 2004-205417 communique
Above-mentioned prior art has been left over following problem.
Promptly, when a plurality of temperature sensor is set on determinand, be difficult to make the driving fit similarly of whole temperature sensors and determinand, and make the adaptation of each temperature sensor identical, simultaneously because because of the offset that causes through annual variation or the variation of adaptation, exist with determinand to have nothing to do, all can appear at the bad problem that produces the Temperature Distribution equal error in the instrumentation.
In addition, when using optical device such as infrared imaging sensor, in order to obtain constant visual angle, must be provided with under the state of to a certain degree and distance determinand guaranteeing, exist to be difficult to be arranged on the problem that is provided with in the little narrow place of degree of freedom etc.
Particularly in the temperature instrumentation of the battery of motor vehicle driven by mixed power or electric automobile etc., require to know the Temperature Distribution of battery module integral body for control, simultaneously, there is restriction on the space, is difficult to realize when utilizing above-mentioned prior art being provided with of temperature sensor along with the miniaturization of battery module.
Summary of the invention
In view of the above problems, the objective of the invention is to, provide and to be provided with the determinand driving fit, even and the local different temperature sensors that also can correctly measure surface temperature of adaptation.
The present invention in order to address the above problem by the following technical solutions.That is, temperature sensor of the present invention is characterised in that to possess: be arranged on the infrared absorbing film on the determinand; A plurality of sensible heat elements at interval (sense Hot sub-prime) of reserving mutually are set on this infrared absorbing film; With the wiring that is connected with described sensible heat element.
In this temperature sensor, owing to possess the infrared absorbing film that is arranged on the determinand and a plurality of sensible heat elements at interval of reserving mutually be set on this infrared absorbing film, infrared absorbing film is with the form of face rather than the infrared ray that is radiated by the surface of the determinand that is provided with infrared absorbing film with the form absorption of point, go out its heat release with a plurality of sensible heat element testing that are distributed on the infrared absorbing film simultaneously, thereby can detect the medial temperature that the surface is set or surperficial Temperature Distribution is set.That is, though infrared absorbing film local not with the situation of determinand driving fit under, no matter how adaptation can absorb by the infrared ray that the surface radiation is set, therefore can correctly detect surface temperature.Therefore, do not need whole high adaptation, can reduce when cost is set, even take place because the offset that causes through annual variation etc. or the reduction of adaptation also can be kept high mensuration precision.
In addition, temperature sensor of the present invention is characterized in that, possesses the infrared reflection film that is arranged on the described sensible heat element, and described sensible heat element is clipped between described infrared absorbing film and the described infrared reflection film.
Promptly, this temperature sensor is owing to possess the infrared reflection film that is arranged on the sensible heat element, the sensible heat element is clipped between infrared absorbing film and the infrared reflection film, so can reduce the interference that causes owing to from the infrared ray beyond the determinand by infrared reflection film, can carry out more high-precision temperature measuring.
In addition, temperature sensor of the present invention is characterized in that, described infrared absorbing film is the resin molding that contains the infrared ray-absorbable filler higher than the resin of main material.
That is, in this temperature sensor,, guarantee the insulativity of infrared absorbing film and sensible heat element, can also obtain infrared absorption effect by filler simultaneously because infrared absorbing film is the resin molding that contains the infrared ray-absorbable filler higher than the resin of main material.
In addition, temperature sensor of the present invention is characterized in that, in the surface coverage of described infrared absorbing film dielectric film is arranged.
That is, in this temperature sensor, because the surface coverage of infrared absorbing film has dielectric film, even the infrared absorbing film of electric conductivity, also the dielectric film that can pass through to be covered is guaranteed the insulativity of itself and sensible heat element.
In addition, temperature sensor of the present invention is characterized in that, a plurality of described sensible heat elements are sensible heat resistive element (sense Hot opposing sub-prime), are electrically connected in series by described wiring mutually.
Promptly, in this temperature sensor, because a plurality of sensible heat elements as sensible heat resistive elements such as thermistor elements are electrically connected in series by wiring, so by measuring the resistance value of wiring, obtain comprising the resistance value of the resistance variations of whole sensible heat elements, thereby can easily detect the medial temperature that the surface is set.
In addition, temperature sensor of the present invention is characterized in that, described wiring possesses respectively the many independent lines of measuring that are connected with each described sensible heat element as the sensible heat resistive element.
Promptly, in this temperature sensor, because wiring possesses respectively many independent mensuration lines that are connected with each sensible heat element as sensible heat resistive elements such as thermistor elements, respectively the temperature at the position that is provided with corresponding sensible heat element is measured so can independently measure line by each, simultaneously can be according to the Temperature Distribution that the position obtain the surface that is provided with of each sensible heat element.
By the present invention, play following effect.
Promptly, in the temperature sensor of the present invention, owing to possess the infrared absorbing film that is arranged on the determinand and a plurality of sensible heat elements at interval of reserving mutually be set on this infrared absorbing film, even the uneven of adaptation arranged or, also can detect the Temperature Distribution that whole temperature in surface or surface are set through annual variation.
Therefore, when temperature sensor of the present invention being arranged on the surface of battery, even the inequality of adaptation is arranged, also can be correctly and measure the medial temperature or the Temperature Distribution of battery surface steadily in the long term.
Description of drawings
In first embodiment of Fig. 1 for expression temperature sensor of the present invention, be arranged on the sectional view of the temperature sensor on the battery;
Fig. 2 is the vertical view of the temperature sensor in expression first embodiment;
Fig. 3 is the vertical view of second embodiment of expression temperature sensor of the present invention;
Fig. 4 is the sectional view of the temperature sensor in expression second embodiment.
Symbol description
1,21 temperature sensor
2,22 infrared absorbing film
3 sensible heat elements
4 wirings
5,25 infrared reflection films
The 24a bridging line
24b independently measures line
27 dielectric films
The B determinand
Embodiment
Below, first embodiment that sees figures.1.and.2 to temperature sensor of the present invention describes.And, be used for each accompanying drawing of following explanation, in order to make the size of each parts, suitably changed engineer's scale for discerning or discerning easily.
As depicted in figs. 1 and 2, the temperature sensor 1 of present embodiment for example with battery as determinand B, its temperature is measured, possessed the infrared absorbing film 2 that is arranged on the determinand B, on this infrared absorbing film 2, be provided with and a plurality ofly reserve sensible heat element 3, the wiring 4 that is connected with sensible heat element 3 at interval mutually and be arranged on infrared reflection film 5 on the sensible heat element 3.
That is, above-mentioned sensible heat element 3 is clipped between infrared absorbing film 2 and the infrared reflection film 5.
A plurality of sensible heat elements 3 are sensible heat resistive elements such as thermistor element, 4 are electrically connected in series by connecting up mutually.Therefore,, obtain comprising the resistance value of the resistance variations of the whole sensible heat elements 3 that are connected in series, can calculate the medial temperature that the surface is set by this resistance value by the resistance value between 4 the pair of end portions of connecting up is measured.And in the present embodiment, six sensible heat element 3 mutual decentralized configuration also are bonded on the infrared absorbing film 2, and interconnect with wirings 4 such as lead-in wires.
Above-mentioned sensible heat element 3 can adopt for example laminal slice heat sensitive resistor.This thermistor has thermistors such as NTC (negative temperature coefficient) type, PTC (positive temperature coefficient (PTC)) type, CTR (critical temperature) type, and in the present embodiment, adopts for example NTC type thermistor as sensible heat element 3.This thermistor is formed by thermistor materials such as Mn-Co-Cu based material, Mn-Co-Fe based materials.
Above-mentioned infrared absorbing film 2 is for for example having film or high infrared ray absorbing rate, easy film or the sheet material that conducts heat of sheet material that forms with resin material than only on in-plane.For example, can adopt the film that for example contains infrared ray absorbing materials such as carbon black or infrared ray-absorbable glass-film (containing borosilicate glass film of 71% silicon dioxide etc.) as infrared absorbing film 2, but in the present embodiment, adopted the resin molding that contains the infrared ray-absorbable fillers such as aluminium oxide higher than the resin of main material.That is, have the insulativity that infrared absorption effect that filler brings and resin bring concurrently to sensible heat element 3 as this infrared absorbing film 2 of resin-filled film.
Above-mentioned infrared reflection film 5 is preferably to have the infrared emission rate lower than the film that only forms with insulating material or sheet material, has particularly carried out mirror finish and the film of reflected infrared.For example, as infrared reflection film 5, can adopt the aluminium vapor-deposited film of minute surface or aluminium foil etc.This infrared reflection film 5 forms to cover infrared absorbing film 2 greater than the size of infrared absorbing film 2 slightly.
And also can be following structure: the Copper Foil at the back side that will be formed on flexible base, board is as infrared reflection film 5, forms pattern as wiring 4 on the surface of flexible base, board with Copper Foil etc. simultaneously, waits by welding to engage each sensible heat element 3 in this wiring 4.At this moment, sensible heat element 3, wiring 4 and infrared reflection film 5 can constitute integratedly.
The temperature sensor 1 of present embodiment is owing to possess the infrared absorbing film 2 that is arranged on the determinand B and a plurality of sensible heat elements 3 at interval of reserving mutually are set on this infrared absorbing film 2 like this, therefore, infrared absorbing film 2 is with the form of face rather than the infrared ray that is radiated by the surface of the determinand B that is provided with infrared absorbing film 2 with the form absorption of point, detect its heat release with a plurality of sensible heat elements 3 that are distributed on the infrared absorbing film 2 simultaneously, thereby can detect the medial temperature that the surface is set or surperficial Temperature Distribution is set.
That is, though infrared absorbing film 2 local not with the situation of determinand B driving fit under, no matter how adaptation can absorb by the infrared ray that the surface radiation is set, therefore can correctly detect surface temperature.Therefore, do not need whole high adaptation, can reduce when cost is set, even take place because the offset that causes through annual variation etc. or the reduction of adaptation also can be kept high mensuration precision.
In addition, owing to possess the infrared reflection film 5 that is arranged on the sensible heat element 3, sensible heat element 3 is clipped between infrared absorbing film 2 and the infrared reflection film 5, therefore the interference that causes owing to from the infrared ray beyond the determinand B can be reduced by infrared reflection film 5, more high-precision temperature measuring can be carried out.
Further, owing to 4 be electrically connected in series by connecting up as a plurality of sensible heat elements 3 of sensible heat resistive element, therefore by measuring the resistance value of wiring 4, obtain comprising the resistance value of the resistance variations of whole sensible heat elements 3, thereby can easily detect the medial temperature that the surface is set.
Then, with reference to Fig. 3 and Fig. 4 second embodiment of temperature sensor of the present invention is described below.And, in the explanation of following embodiment, for above-mentioned embodiment in the same inscape that illustrates attached with identical symbol, omit its explanation.
The difference of second embodiment and first embodiment is, in the first embodiment, a plurality of sensible heat elements 34 are electrically connected in series by connecting up, therewith relatively, the temperature sensor 21 of second embodiment as shown in Figure 3 and Figure 4, a plurality of sensible heat elements 3 are sensible heat resistive elements such as thermistor element, and wiring 24 possesses many independent line 24b that measure that are connected with each sensible heat element 3 respectively.In addition, also be with the difference of first embodiment, in the temperature sensor 21 of second embodiment, infrared absorbing film 22 and infrared reflection film 25 are formed by conductive material, and the surface coverage at infrared absorbing film 22 and infrared reflection film 25 has dielectric film 27 simultaneously.
That is, in second embodiment, wiring 4 is by the independent mensuration line 24b formation of the bridging line 24a that is connected with a side in the pair of terminal electrode of each sensible heat element 3 (omitting diagram) and be connected with the opposing party's of each sensible heat element 3 terminal electrode respectively many.Therefore, when selecting among six sensible heat elements 3 that sensible heat element 3 is measured arbitrarily, as long as between correspondence independent measured line 24b and bridging line 24a, measure resistance value, then can measure the resistance value of the sensible heat element 3 of correspondence independently, promptly be provided with the temperature at the position of this sensible heat element 3.
In addition, for example for containing the conductive sheet of carbon black, infrared reflection film 25 is a Copper Foil etc. to the infrared absorbing film 22 of second embodiment simultaneously.Infrared absorbing film 22 and infrared reflection film 25 have electric conductivity like this, therefore cover the surface of infrared absorbing film 22 and infrared reflection film 25 with dielectric film 27, so that infrared absorbing film 22 does not directly contact with sensible heat element 3 with infrared reflection film 25.This dielectric film 27 is for example formed by resin, is preferably formed by infrared ray permeability film.
In the temperature sensor 21 of such second embodiment, because wiring 24 possesses many independent line 24b that measure that are connected with each sensible heat element 3 respectively, so independently measure line 24b by each, can be respectively the temperature at the position that is provided with corresponding sensible heat element 3 be measured, simultaneously according to the Temperature Distribution that the position can obtain the surface that is provided with of each sensible heat element 3.
In addition, owing on the surface of infrared absorbing film 22 and infrared reflection film 25, be coated with dielectric film 27, even infrared absorbing film of electric conductivity 22 and infrared reflection film 25 also can be guaranteed insulativity with sensible heat element 3 by the dielectric film 27 that covers.
And technical scope of the present invention is not limited by the respective embodiments described above, can carry out various changes in the scope that does not break away from aim of the present invention.
For example,, use thermistor elements such as slice heat sensitive resistor as mentioned above, but except thermistor, can also adopt thermoelectric element etc. as the sensible heat element.
Claims (6)
1. temperature sensor is characterized in that possessing:
Be arranged on the infrared absorbing film on the determinand;
A plurality of sensible heat elements at interval of reserving mutually are set on this infrared absorbing film; With
The wiring that is connected with described sensible heat element.
2. temperature sensor according to claim 1 is characterized in that, possesses the infrared reflection film that is arranged on the described sensible heat element, and described sensible heat element is clipped between described infrared absorbing film and the described infrared reflection film.
3. temperature sensor according to claim 1 and 2 is characterized in that, described infrared absorbing film is the resin molding that contains the infrared ray-absorbable filler higher than the resin of main material.
4. according to any described temperature sensor of claim 1～3, it is characterized in that dielectric film being arranged in the surface coverage of described infrared absorbing film.
5. according to any described temperature sensor of claim 1～4, it is characterized in that a plurality of described sensible heat elements are the sensible heat resistive element, are electrically connected in series by described wiring mutually.
6. according to any described temperature sensor of claim 1～4, it is characterized in that a plurality of described sensible heat elements are the sensible heat resistive element, described wiring possesses the many independent lines of measuring that are connected with each described sensible heat element respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009177117A JP2011033358A (en) | 2009-07-29 | 2009-07-29 | Temperature sensor |
| JP2009-177117 | 2009-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101988853A true CN101988853A (en) | 2011-03-23 |
Family
ID=43745518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102432459A Pending CN101988853A (en) | 2009-07-29 | 2010-07-29 | Temperature sensor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2011033358A (en) |
| CN (1) | CN101988853A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367697A (en) * | 2017-08-24 | 2017-11-21 | 武汉大学 | A kind of double detector lithium battery surface temperature detector and method |
| CN109798557A (en) * | 2017-11-17 | 2019-05-24 | 美的集团股份有限公司 | Electromagnetic heating apparatus temp measuring system and electromagnetic heating apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101831066B1 (en) * | 2016-10-06 | 2018-02-22 | 경희대학교 산학협력단 | Temperature monitoring box using sensing array and method thereof |
| CN106768452A (en) * | 2016-11-22 | 2017-05-31 | 合肥舒实工贸有限公司 | Telemetering type temperature sensor |
| CN106768454A (en) * | 2016-11-22 | 2017-05-31 | 合肥舒实工贸有限公司 | Telemetering type temperature sensor |
-
2009
- 2009-07-29 JP JP2009177117A patent/JP2011033358A/en not_active Withdrawn
-
2010
- 2010-07-29 CN CN2010102432459A patent/CN101988853A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367697A (en) * | 2017-08-24 | 2017-11-21 | 武汉大学 | A kind of double detector lithium battery surface temperature detector and method |
| CN109798557A (en) * | 2017-11-17 | 2019-05-24 | 美的集团股份有限公司 | Electromagnetic heating apparatus temp measuring system and electromagnetic heating apparatus |
| CN109798557B (en) * | 2017-11-17 | 2021-03-02 | 美的集团股份有限公司 | Temperature measuring system of electromagnetic heating equipment and electromagnetic heating equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011033358A (en) | 2011-02-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110323 |