CN101398332B - Temperature sensor for monitoring outside temperature - Google Patents
Temperature sensor for monitoring outside temperature Download PDFInfo
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- CN101398332B CN101398332B CN2007101222095A CN200710122209A CN101398332B CN 101398332 B CN101398332 B CN 101398332B CN 2007101222095 A CN2007101222095 A CN 2007101222095A CN 200710122209 A CN200710122209 A CN 200710122209A CN 101398332 B CN101398332 B CN 101398332B
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- temperature sensor
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- cover
- thermofin
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Abstract
The invention provides a temperature sensor which is used for monitoring the environmental temperature; and the temperature sensor comprises a thermal-sensitive element used for temperature measurement, a central part and a heat insulation layer, wherein, the central part is provided with a central chamber which is communicated with the environmental atmosphere; the thermal-sensitive element is arranged in the central chamber; and the heat insulation layer is sleeved outside the central part and prevents the heat of the environment from passing through the central part and entering the central chamber. The temperature sensor can effectively avoid or reduce the effect of the long-term assembly of the environmental heat on the thermal-sensitive element, thus improving the temperature measurement exactness.
Description
Technical field
The present invention specifically, is a kind of temperature sensor that is used to monitor ambient temperature relevant for a kind of temperature measuring equipment.
Background technology
The present temperature sensor that is used to monitor ambient temperature that uses, all be directly be positioned over outdoor.Generally speaking, the reflection ambient temperature that temperature sensor can be comparatively correct.But, when sunlight direct irradiation sometimes on temperature sensor, especially after passing through long-term thermal accumlation, the temperature that most of temperature sensors reflect is generally higher than the external world, influence the thermometric accuracy of temperature sensor thus, thereby may cause the malfunction of the device (for example new blower fan, air-conditioning etc.) of the temperature-measuring results of utilizing temperature sensor.
In addition, the temperature sensor long term exposure is outdoor, and rain erosion makes the temperature sensor life-span shorten greatly.
The cross section of conventional temperature sensor is generally circular, and temperature sensor hangs on the outdoor wall, and when this temperature sensor was moved in wind, this temperature sensor just made sensor often roll because of wind easily, thereby damages temperature sensor.
Therefore, be necessary to provide a kind of new arrangement of temperature sensor that is used to monitor ambient temperature, overcome the above-mentioned defective that exists in the prior art.
Summary of the invention
Problem to be solved by this invention is, a kind of temperature sensor that is used to monitor ambient temperature is provided, and this temperature sensor can not influence the accuracy of thermometric because of the long-term aggregated of external heat when thermometric.
Above-mentioned technical matters of the present invention can adopt following technical scheme to solve, a kind of temperature sensor that is used to monitor ambient temperature, and this temperature sensor comprises:
The thermal sensing element that is used for thermometric;
Central module, it has the central lumen that is communicated with ambient atmosphere, and described thermal sensing element is placed in this central chamber;
Thermofin, it is set in outside the central module, prevents that extraneous heat from seeing through central module and entering central chamber;
Wherein, be arranged with hollow housing, between this hollow housing and central module, form the sealing cavity, constitute described thermofin by this sealing cavity in described central module periphery.
In a preferred embodiment of the present invention, described thermofin also is covered with cover body outward, and is formed with between this cover body and the thermofin outer wall at interval.
In a preferred embodiment of the present invention, described hollow housing has a tubular part, the upper end of this tubular part is extended also towards central module, and one is connected on the central module, form annular opening between the lower end of this tubular part and the central module outer wall, one first cover is covered on this annular opening this annular opening is sealed, thereby forms described sealing cavity between described hollow housing and the central module.
In a preferred embodiment of the present invention, described central module also is a tubulose, and its upper end forms the installation end of thermal sensing element, and the lower end is connected with second cover, has the pore that described central lumen is communicated with ambient atmosphere on this second cover.
In a preferred embodiment of the present invention, described first cover and second cover are integrally formed as a cover, this cover comprises bottom and the interior ring lug boss and the outer shroud lug boss that upwards extend from the bottom, be provided with the connecting portion that is connected with the tubular part lower end of hollow housing in the outer end of described outer shroud lug boss, the outer end of ring lug boss is provided with the connecting portion that is connected with central module in described, described pore is arranged in the interior ring lug boss of bottom, after thereby this cover is covered on the tubular part lower end and central module lower end of described hollow housing, make to form the described sealing cavity that is not communicated with ambient atmosphere between this hollow housing and this central module, the central lumen of described central module is communicated in ambient atmosphere by pore.
In a preferred embodiment of the present invention, described cover body also is a tubulose, and its upper end has the extension that extends towards thermofin, and this extension one is connected on the thermofin, forms annular opening between its lower end and the thermofin.
In the above-described embodiments, the extension on the described cover body is provided with intercommunicating pore.
Upwards be provided with the outstanding leg of a plurality of outward radials week in the periphery of described cover body.
Based on said structure, temperature sensor of the present invention advantage compared with prior art is: 1) because thermal sensing element is arranged on the central chamber of central module, and be outside equipped with thermofin at central module, after being subjected to the direct irradiation of sunlight, heat can only accumulate on the outer wall of thermofin, this thermofin has prevented the thermal sensing element of this central chamber of heat transferred, thereby make thermal sensing element can not assembled the influence of heat, be communicated with atmosphere owing to central lumen simultaneously, so thermal sensing element can come to measure more exactly outer atmospheric temperature by the air of central chamber.Particularly for described thermofin by the example that the outer sealing cavity of central module constitutes, utilize that immobilising air layer has promptly played heat-blocking action in the cavity, it is simple in structure, low cost of manufacture.
2) because the present invention can further be covered with cover body outside thermofin; thereby utilize this cover body thermofin in it and central module can be protected; make sunlight can direct irradiation on inner structure; a large amount of gatherings of heat on the thermofin outer wall have been reduced; thereby prevented of the influence of the heat of gathering better, improved the thermometric accuracy of thermal sensing element the thermal sensing element in the central module.And this cover body can prevent that also rainwater from entering inner structure, makes that not only thermal sensing element can the accurate response ambient temperature, and has avoided the erosion of rainwater, has prolonged the serviceable life of temperature sensor.
3) because the periphery of cover body is provided with a plurality of radially outward outstanding legs, for the cross section is circular temperature sensor, can effectively prevent because of the moving rolling that causes of wind, played the effect of fixed temperature sensor, thereby avoided temperature sensor to cause damage, prolonged serviceable life because of rolling.
Description of drawings
The following drawings only is intended to invention done and schematically illustrates and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the sectional view of temperature sensor of the present invention;
Fig. 2 is the sectional structure synoptic diagram after temperature sensor of the present invention is removed cover and thermal sensing element;
Fig. 3 is the perspective view after temperature sensor of the present invention is removed cover and thermal sensing element;
Fig. 4 is the main TV structure synoptic diagram after temperature sensor of the present invention is removed cover and thermal sensing element;
Fig. 5 is the structural representation of looking up behind temperature sensor removal cover of the present invention and the thermal sensing element;
Fig. 6 is the cross-sectional view of the cover of temperature sensor of the present invention;
Fig. 7 is the structural representation of looking up of cover of the present invention;
Fig. 8 is a thermo-sensitive element structure synoptic diagram of the present invention.
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
As shown in Figure 1, the temperature sensor that is used to monitor ambient temperature of the present invention comprises: the thermal sensing element 1, central module 2 and the thermofin 3 that are used for thermometric.Wherein, central module 2 has the central lumen 20 that is communicated with ambient atmosphere, and described thermal sensing element 1 is placed in this central lumen 20; Thermofin 3 is set in outside the central module 2, to prevent that extraneous heat from seeing through central module 2 and entering in the central lumen 20.Like this, when being positioned over, this temperature sensor (for example is placed on new blower fan when the external world carries out thermometric, air conditioners etc. need on the ventilation equipment of monitoring temperature), this temperature sensor is after being subjected to the direct irradiation of sunlight, heat can only accumulate on the outer wall of outside thermofin 3, because the heat-blocking action of thermofin 3, the heat of this gathering is stoped in central module 2 outsides, thereby the thermal sensing element 1 of the heat transferred that has prevented this gathering in the central lumen 20, effectively avoid or improved the influence of the heat assembled, improved thermal sensing element 1 thermometric accuracy thermal sensing element 1.
Shown in Fig. 1-4, in a preferred embodiment of the present invention, also can be covered with cover body 4 outside the described thermofin 3, and be formed with interval 40 between this cover body 4 and thermofin 3 outer walls.Like this, outside thermal sensing element 1, form central module 2 (central core), thermofin 3 (middle layer) and cover body 4 (skin) three-layer protection structure.This outer field cover body 4 can protect thermofin in it 3 and central module 2, make sunlight can direct irradiation on inner structure, and certain heat-blocking action has also been played at the interval 40 between this cover body 4 and the thermofin 3, effectively reduces a large amount of gatherings of heat on thermofin 3 outer walls; This cover body 4 can prevent that also rainwater from entering inner structure simultaneously, makes that not only thermal sensing element 1 can the accurate response ambient temperature, and has avoided the erosion of rainwater, has prolonged the serviceable life of temperature sensor.The thermofin 3 that is positioned at the middle layer can be avoided because temperature sensor is in the external world for a long time, the heat that heat accumulation causes between cover body 4 and thermofin 3 time conducts to the thermal sensing element at center, and the thermal sensing element 1 that causes can not correctly reflect the problem of ambient temperature.And be positioned at the central module 2 of internal layer, and owing to have the central lumen 20 that is communicated with atmosphere, formed thermal sensing element 1 and extraneous getting in touch, make the temperature in the external world accurately to reflect by thermal sensing element 1.Therefore,, prevented of the influence of the heat of extraneous gathering effectively, guaranteed the thermometric accuracy of thermal sensing element 1 thermal sensing element 1 in the central module 2 by the three-layer protection structure outside the above-mentioned thermal sensing element 1.
As shown in Figure 1, in a better embodiment of the present invention, describedly be arranged with hollow housing 31, between this hollow housing 31 and central module 2, form sealing cavity 30, constitute described thermofin 3 by this sealing cavity 30 in central module 2 peripheries.Like this, utilize sealing cavity 30 interior immobilising air layers promptly to play heat-blocking action, do not need extra heat-barrier material, it is simple in structure, low cost of manufacture.
As shown in Figure 1, in a preferred embodiment of the present invention, described hollow housing 31 has a tubular part 311, the upper end of this tubular part 311 is extended also towards central module 2, and one is connected on the central module 2, form annular opening 301 between the lower end of this tubular part 311 and central module 2 outer walls, one first cover 51 is covered on this annular opening 301 this annular opening 301 is sealed, thereby forms described sealing cavity 30 between described hollow housing 31 and central module 2.Like this, by immobilising air layers in this enclosed cavity chamber 30, thus the effect of the heat transferred that plays the gathering that prevents that center housing 31 is outer in the central module 2.In the present embodiment, because hollow housing 31 is to be combined by tubular part 311 and 51 splits of first cover, manufacturing process is fairly simple, has reduced cost.
Certainly, in the present invention, this hollow housing 31 also can be other structures, as long as can form sealing cavity 30 and get final product between central module 2 and hollow housing 31 after be attached on the central module 2, its specific constructive form can not limit at this.
In the present invention, thermal sensing element 1 can adopt the thermal sensing element of existing any survey temperature, if can measure extraneous temperature its can, play a concrete structure and do not limit at this.As shown in Figure 8, as a kind of example, this thermal sensing element 1 can comprise thermistor 11, heat-shrink tube 12 and as the lead 13 of data line.
In a preferred embodiment of the present invention, as shown in Figure 1, described central module 2 also is a tubulose, its upper end 21 forms the installation end of thermal sensing element 1, lower end 22 is connected with second cover 52, has the pore 521 that described central lumen 20 is communicated with ambient atmosphere on this second cover 52.Number is set can be provided with as required of this pore 521 do not limit at this.After thermal sensing element 1 was installed in installation end, it is outer and be connected with control module that need obtain the device (for example ventilation unit, air conditioner etc.) of temperature sensor temperature-measuring results that data line can stretch out central lumen 20 by installation end.After in thermal sensing element 1 is installed in central lumen 20, cover second cover 52, form with ambient atmosphere by the pore on second cover 52 521 and get in touch, thereby accurately measure the temperature of ambient atmosphere.
As Fig. 1, Fig. 6, shown in Figure 7, in a preferred embodiment of the present invention, described first cover 51 and second cover 52 are integrally formed as a cover 50, this cover 50 comprises bottom 501 and 501 interior ring lug boss 502 and the outer shroud lug bosses 503 that upwards extend from the bottom, be provided with the connecting portion 5031 that is connected with tubular part 311 lower ends of hollow housing 31 in the outer end of described outer shroud lug boss 503, the outer end of interior ring lug boss 502 is provided with the connecting portion 5021 that is connected with central module 2 lower ends 22, described pore 521 is arranged in the interior ring lug boss 502 of bottom 501, thereby be covered on tubular part 311 lower ends and central module 2 lower ends 22 of hollow housing 31 at this cover 5 after, make to form the described sealing cavity 30 that is not communicated with ambient atmosphere between hollow housing 31 and the central module 22, the central lumen 20 of central module 2 is communicated in ambient atmosphere by pore 521.Like this, utilize parts promptly to realize the function of first cover 51 and second cover 52, not only simple in structure, and processing ease.
In a preferred embodiment of the present invention, as Fig. 2-shown in Figure 4, described cover body 4 also can be tubulose, and its upper end has the extension 41 that extends towards thermofin 3, these extension 41 one are connected on the thermofin 3, form annular opening 42 between its lower end and the thermofin 3.In this embodiment, the extension 41 of described cover body 4 upper ends is provided with intercommunicating pore 411, so that gas communication, thereby the gathering in the interval 40 of minimizing heat between cover body 4 and thermofin 3.
As Fig. 1-shown in Figure 6, in a preferred embodiment of the present invention, upwards be provided with the outstanding leg 6 of a plurality of outward radials week in the periphery of described cover body 4.Like this, be circular temperature sensor for the cross section, can effectively prevent to have played the effect of fixed temperature sensor, thereby avoided temperature sensor to cause damage because of rolling because of the moving rolling that causes of wind, prolonged serviceable life.In a specific embodiment, described leg 6 is four, and circumferentially uniform along cover body 4.
As shown in Figure 1, in a specific embodiment of the present invention, the outward appearance of temperature sensor of the present invention can be inverted bowl type structure.
Though accompanying drawing of the present invention has only provided a kind of concrete enforcement structure, yet, have in this technical field and know that usually the knowledgeable should understand that cover body in the above-mentioned embodiment, insulating layer structure, first cover, second cover, leg etc. can dispose according to demand, and be not limited to shown in above-mentioned text description and the accompanying drawing.For example, in an embodiment, described thermofin also can be made of the heat-barrier material that is arranged on the central module outer peripheral face; In an embodiment again, described thermofin can have sandwich construction, with in the stronger use occasion of sunlight, strengthens its effect of heat insulation; In an embodiment again, cover body 4 can be set, described thermofin outer wall forms the skin of temperature sensor; In an embodiment again, described first cover and the second cover split are provided with; In an embodiment again, the cross section of described temperature sensor is non-circular (for example square), and outside cover body leg can be set.
Temperature sensor of the present invention can be applied to new blower fan, air conditioner etc. to be needed on the ventilation equipment of monitoring temperature, accurately sensitive, the life-span is permanent, easy for installation.
The above only is the schematic embodiment of the present invention, can not limit scope of the present invention with it.The amplification of the equivalent assemblies on basis of the present invention is dwindled, displacement, or according to equivalent variations and modification that the present invention did, all should be included in protection scope of the present invention.
Claims (8)
1. a temperature sensor that is used to monitor ambient temperature is characterized in that, this temperature sensor comprises:
The thermal sensing element that is used for thermometric;
Central module, it has the central lumen that is communicated with ambient atmosphere, and described thermal sensing element is placed in this central chamber;
Thermofin, it is set in outside the central module, prevents that extraneous heat from seeing through central module and entering central chamber;
Wherein, be arranged with hollow housing, between this hollow housing and central module, form the sealing cavity, constitute described thermofin by this sealing cavity in described central module periphery.
2. the temperature sensor that is used to monitor ambient temperature as claimed in claim 1 is characterized in that described thermofin is covered with cover body outward, and is formed with between this cover body and the thermofin at interval.
3. the temperature sensor that is used to monitor ambient temperature as claimed in claim 1, it is characterized in that, described hollow housing has a tubular part, the upper end of this tubular part is extended also towards central module, and one is connected on the central module, form annular opening between the lower end of this tubular part and the central module outer wall, one first cover is covered on this annular opening this annular opening is sealed, thereby forms described sealing cavity between described hollow housing and central module.
4. the temperature sensor that is used to monitor ambient temperature as claimed in claim 3, it is characterized in that, described central module is a tubulose, its upper end forms the installation end of thermal sensing element, the lower end is connected with second cover, has the pore that described central lumen is communicated with ambient atmosphere on this second cover.
5. the temperature sensor that is used to monitor ambient temperature as claimed in claim 4, it is characterized in that, described first cover and second cover are integrally formed as a cover, this cover comprises bottom and the interior ring lug boss and the outer shroud lug boss that upwards extend from the bottom, be provided with the connecting portion that is connected with the tubular part lower end of hollow housing in the outer end of described outer shroud lug boss, the outer end of ring lug boss is provided with the connecting portion that is connected with central module in described, described pore is arranged in the interior ring lug boss of bottom, after thereby this cover is covered on the tubular part lower end and described central module lower end of described hollow housing, make to form the described sealing cavity that is not communicated with ambient atmosphere between this hollow housing and this central module, the central lumen of this central module is communicated in ambient atmosphere by pore.
6. the temperature sensor that is used to monitor ambient temperature as claimed in claim 2, it is characterized in that described cover body is a tubulose, its upper end has the extension that extends towards thermofin, this extension one is connected on the thermofin, forms annular opening between its lower end and the thermofin.
7. the temperature sensor that is used to monitor ambient temperature as claimed in claim 6 is characterized in that, the extension of described cover body upper end is provided with intercommunicating pore.
8. the temperature sensor that is used to monitor ambient temperature as claimed in claim 2 is characterized in that, upwards is provided with the outstanding leg of a plurality of outward radials week in the periphery of described cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101222095A CN101398332B (en) | 2007-09-24 | 2007-09-24 | Temperature sensor for monitoring outside temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101222095A CN101398332B (en) | 2007-09-24 | 2007-09-24 | Temperature sensor for monitoring outside temperature |
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| Publication Number | Publication Date |
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| CN101398332A CN101398332A (en) | 2009-04-01 |
| CN101398332B true CN101398332B (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101222095A Expired - Fee Related CN101398332B (en) | 2007-09-24 | 2007-09-24 | Temperature sensor for monitoring outside temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6702624B2 (en) * | 2015-11-12 | 2020-06-03 | アルプスアルパイン株式会社 | Temperature sensor and position detection device |
| ES2974061T3 (en) * | 2021-06-15 | 2024-06-25 | Te Connectivity Sensors France | Temperature sensor device with insulating casing |
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| CN2031092U (en) * | 1988-04-11 | 1989-01-18 | 李布尔 | Thermometer for temperature defferences |
| CN2041038U (en) * | 1988-06-08 | 1989-07-12 | 杭州华立仪表厂 | Compound temp. sensor |
| US5116137A (en) * | 1990-03-29 | 1992-05-26 | Institute Of Gas Technology | Temperature measuring pyrometer probe which compensates for radiation heat transfer and pneumatic losses |
| DE10106475C1 (en) * | 2001-02-13 | 2002-09-12 | Fraunhofer Ges Forschung | Temperature sensor arrangement used for measuring temperatures in chemically aggressive media, e.g. in the manufacture of metal alloys and in crystal growing processes |
| CN1101589C (en) * | 1995-08-31 | 2003-02-12 | 松下电器产业株式会社 | Temperature sensor and its manufacture |
| CN1187583C (en) * | 1998-10-20 | 2005-02-02 | 航空电子特制品有限公司 | Aircraft probe with integral air temp. sensor |
| CN1744866A (en) * | 2003-01-29 | 2006-03-08 | 株式会社前川制作所 | Temperature control device and method using peltier element |
| CN201083547Y (en) * | 2007-09-24 | 2008-07-09 | 北京亚都新风节能技术有限公司 | Temperature sensor for controlling outside temperature |
-
2007
- 2007-09-24 CN CN2007101222095A patent/CN101398332B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031092U (en) * | 1988-04-11 | 1989-01-18 | 李布尔 | Thermometer for temperature defferences |
| CN2041038U (en) * | 1988-06-08 | 1989-07-12 | 杭州华立仪表厂 | Compound temp. sensor |
| US5116137A (en) * | 1990-03-29 | 1992-05-26 | Institute Of Gas Technology | Temperature measuring pyrometer probe which compensates for radiation heat transfer and pneumatic losses |
| CN1101589C (en) * | 1995-08-31 | 2003-02-12 | 松下电器产业株式会社 | Temperature sensor and its manufacture |
| CN1187583C (en) * | 1998-10-20 | 2005-02-02 | 航空电子特制品有限公司 | Aircraft probe with integral air temp. sensor |
| DE10106475C1 (en) * | 2001-02-13 | 2002-09-12 | Fraunhofer Ges Forschung | Temperature sensor arrangement used for measuring temperatures in chemically aggressive media, e.g. in the manufacture of metal alloys and in crystal growing processes |
| CN1744866A (en) * | 2003-01-29 | 2006-03-08 | 株式会社前川制作所 | Temperature control device and method using peltier element |
| CN201083547Y (en) * | 2007-09-24 | 2008-07-09 | 北京亚都新风节能技术有限公司 | Temperature sensor for controlling outside temperature |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-351500(A) 2005.12.22 |
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| CN101398332A (en) | 2009-04-01 |
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