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WO2009055964A1 - Détecteur de température de thermomètre - Google Patents

Détecteur de température de thermomètre Download PDF

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Publication number
WO2009055964A1
WO2009055964A1 PCT/CN2007/003097 CN2007003097W WO2009055964A1 WO 2009055964 A1 WO2009055964 A1 WO 2009055964A1 CN 2007003097 W CN2007003097 W CN 2007003097W WO 2009055964 A1 WO2009055964 A1 WO 2009055964A1
Authority
WO
WIPO (PCT)
Prior art keywords
powder
thermometer
temperature sensing
metal
temperature sensor
Prior art date
Application number
PCT/CN2007/003097
Other languages
English (en)
Chinese (zh)
Inventor
Zhigang Zhao
Original Assignee
Zhigang Zhao
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhigang Zhao filed Critical Zhigang Zhao
Priority to PCT/CN2007/003097 priority Critical patent/WO2009055964A1/fr
Priority to CN2007900000715U priority patent/CN201488829U/zh
Publication of WO2009055964A1 publication Critical patent/WO2009055964A1/fr

Links

Classifications

    • 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

Definitions

  • the present invention relates to a thermometer temperature measuring device, and more particularly to a thermometer temperature sensing head. Scene
  • the temperature sensing head is an important part of the thermometer.
  • the thermometer obtains the temperature of the measured object through the temperature sensing head, and then measures the temperature of the measured object to achieve the purpose of measuring the temperature of the measured object.
  • the sensitivity of the temperature sensor is the speed at which the temperature sensor senses the temperature of the measured object. It is an important indicator for evaluating the measurement performance of the thermometer and determines the temperature of the thermometer.
  • the sensitive temperature sensor can quickly obtain the temperature of the measured object and greatly shorten the time for the user to measure the temperature. Therefore, improving the sensitivity of the temperature sensor becomes an important issue for improving the performance of the thermometer.
  • the conventional temperature sensing head mounted on the thermometer plastic housing head 1 is provided with a temperature sensor 5 on the inner wall of the metal casing 2, and the metal casing 2 is filled with a heat conductive material 4 (such as AB glue).
  • the inner cavity fixes the temperature sensor 5 to the inner wall of the metal casing 2 and transfers the heat of the metal casing 2 to the temperature sensor 5.
  • the temperature sensor 5 transmits the temperature information to the thermometer metering display circuit through the wire 3 for temperature display.
  • the thermal conductive material 4 as a filler has a certain heat capacity, and a certain heat transfer hysteresis is generated when heat is transferred, which reduces the sensitivity of the conventional temperature sensing head;
  • the temperature sensor of the conventional temperature sensor is in point contact with the metal casing, the contact area is small, and the heat transfer speed is slow, so that the improved temperature sensing head as shown in FIG. 2 appears.
  • the temperature sensing head uses an elastic heat insulating material 6 (such as polystyrene foam (EPS), etc.) instead of the heat conductive material 4 as a filling material to fill the metal housing 2 with the fixed temperature sensor 5, and increases between the temperature sensor and the metal housing.
  • EPS polystyrene foam
  • Heat transfer adhesive 7 (such as AB glue) having heat conductivity
  • the heat transfer adhesive adheres and fixes the temperature sensor 5 on the inner wall of the metal casing 2 on the one hand, and contacts the point contact of the temperature sensor 5 and the metal casing 2 on the other hand. Turning into a surface contact increases the heat transfer speed between the metal casing 2 and the temperature sensor 5, and the heat insulating material 6 keeps the heat transferred to the temperature sensor 5 from being lost, thereby improving the sensitivity of the temperature sensing head, thereby making it possible to improve the sensitivity of the temperature sensing head.
  • Existing thermometers can complete temperature measurements in 30 seconds.
  • the heat transfer adhesive has become the main limitation of the sensitivity of the temperature sensitive head, and there is no method for improving the heat transfer capability of the heat transfer adhesive.
  • the temperature sensor is only in contact with the heat transfer adhesive on one side, and the heat transfer area is small, which greatly limits the sensitivity of the temperature sensing head. Summary of the invention
  • the technical problem to be solved by the present invention is to further improve the sensitivity of the existing temperature sensing head of the thermometer, and to provide a thermometer temperature sensing head.
  • thermometer temperature sensing head comprising a metal shell (2), a heat transfer glue disposed on the inner wall of the metal shell, and being bonded to the heat transfer adhesive a temperature sensor (5) and an elastic heat insulating material (6) filling the inner cavity of the metal casing and pressing the temperature sensor on the heat transfer adhesive, characterized in that the heat transfer adhesive includes therein mineral powder.
  • the metal powder is copper powder, aluminum powder, aluminum magnesium powder, tin powder or zinc powder.
  • thermometer temperature sensing head of the present invention further comprising a temperature sensor thermal conductive cover layer (9), the heat conductive cover layer being located between the heat insulating material and the temperature sensor and covering the temperature sensor and the heat transfer adhesive and / or above the inner wall of the metal housing.
  • the heat conductive cover layer is a metal powder layer.
  • the metal powder of the heat conductive cover layer is copper powder, aluminum powder, aluminum magnesium powder, tin powder or zinc powder.
  • the heat conductive cover layer is a metal thin film layer.
  • the metal thin film of the heat conductive cover layer is an aluminum film or a tin film.
  • a plug pin for inserting the heat insulating material from an open end of the inner cavity of the metal casing is included.
  • Figure 1 is a cross-sectional view of a conventional thermometer temperature sensing head.
  • FIG. 2 is a cross-sectional view of an improved temperature sensing head of a conventional thermometer.
  • Figure 3 is a cross-sectional view showing a first embodiment of the temperature sensing head of the thermometer of the present invention.
  • Figure 4 is an enlarged view of a portion A in Figure 3.
  • Figure 5 is a cross-sectional view showing a second embodiment of the temperature sensing head of the thermometer of the present invention.
  • Figure 6 is an enlarged view of a portion B in Figure 5.
  • the thermometer temperature sensing head of the present invention comprises a metal casing 2, and a heat transfer adhesive disposed on the inner wall of the head of the metal casing 2 (which may also be disposed on the inner wall of the side of the metal casing 2).
  • metal powder is contained in the heat transfer adhesive 8.
  • the thermal conductive adhesive uses a thermal conductive adhesive which has a good thermal conductivity, such as AB adhesive.
  • the metal powder mixed with the thermal conductive adhesive may be copper powder, aluminum powder, aluminum magnesium powder, tin powder, zinc powder or other metal powder having good thermal conductivity.
  • the elastic heat insulating material 6 is made of a foamed heat insulating material such as polystyrene foam (EPS).
  • the structure of the first embodiment is mostly the same as that of the first embodiment.
  • the temperature sensing head of the embodiment further includes a temperature sensor thermal cover layer 9
  • the thermal conductive cover layer 9 is located on the heat insulating material. 6 and the temperature sensor 5 and over the temperature sensor 5 and the heat transfer adhesive 8.
  • the thermally conductive cover layer 9 may also be overlaid on the inner walls of the temperature sensor 5, the heat transfer glue 8 and the metal casing 2 or over the inner walls of the temperature sensor 5 and the metal casing 2.
  • the temperature on the metal casing 2 can be transmitted to the rear side of the temperature sensor 5 through the heat conductive cover layer 9, so that the heat transfer area of the temperature sensor 5 is greatly increased, the heat transfer speed is greatly improved, and the existing improved temperature is improved.
  • the temperature sensing head can reach the heat balance with the temperature of the measured object in a shorter time, thereby improving the sensitivity of the temperature sensing head.
  • the thermal conductive cover layer 9 can be composed of a metal powder layer, such as copper powder, aluminum powder, aluminum magnesium powder, tin powder, zinc powder or other metal powder.
  • the thermal conductive cover layer 9 can also be formed by a metal thin film layer, such as an aluminum film, a tin film or other commonly used metal film.
  • This embodiment is not illustrated. This embodiment is mostly the same as the first embodiment or the second embodiment. The difference is that the temperature sensing head of the embodiment further includes a plug pin that inserts the heat insulating material from the open end of the inner cavity of the metal casing 2. Increasing the pressure of the heat insulating material 6 to the temperature sensor 5, so that the temperature sensor 5 can be more closely contacted with the heat transfer adhesive 8, and when the metal cover layer 9 is used, the temperature sensor 5 is also in close contact with the metal cover layer 9 , thereby improving the heat transfer speed between the heat transfer adhesive and the metal cover layer and the temperature sensor, and improving the sensitivity of the temperature sensitive head.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

Le détecteur de température de thermomètre de l'invention comprend un logement métallique (2), une colle thermoconductrice (8) appliquée sur la paroi interne du logement métallique (2), un capteur de température (5) fixé sur la colle thermoconductrice (8) et un isolant thermique élastique (6) remplissant la cavité du logement métallique (2) et pressant le capteur de température (5) sur la colle thermoconductrice (8). La colle thermoconductrice (8) comprend une poudre métallique.
PCT/CN2007/003097 2007-10-31 2007-10-31 Détecteur de température de thermomètre WO2009055964A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2007/003097 WO2009055964A1 (fr) 2007-10-31 2007-10-31 Détecteur de température de thermomètre
CN2007900000715U CN201488829U (zh) 2007-10-31 2007-10-31 一种温度计感温头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/003097 WO2009055964A1 (fr) 2007-10-31 2007-10-31 Détecteur de température de thermomètre

Publications (1)

Publication Number Publication Date
WO2009055964A1 true WO2009055964A1 (fr) 2009-05-07

Family

ID=40590510

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003097 WO2009055964A1 (fr) 2007-10-31 2007-10-31 Détecteur de température de thermomètre

Country Status (2)

Country Link
CN (1) CN201488829U (fr)
WO (1) WO2009055964A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6490063B2 (ja) 2013-06-17 2019-03-27 ジーイー・ヘルスケア・バイオサイエンス・アクチボラグ 温度検出手段を含むバイオリアクタシステム
CN108387320B (zh) * 2018-02-08 2019-07-12 北京航空航天大学 一种金属型铸造快速响应测温热电偶

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1278617A1 (ru) * 1985-04-08 1986-12-23 Предприятие П/Я В-2119 Теплопровод ща паста дл термопреобразовател сопротивлени
CN1072196A (zh) * 1991-11-10 1993-05-19 赵兴宏 导热胶泥
JPH05135849A (ja) * 1991-11-11 1993-06-01 Canon Inc ヒーター及び定着装置
CN2244718Y (zh) * 1995-08-08 1997-01-08 北京极星电子有限公司 具有视听功能的电子体温计
CN1272178A (zh) * 1998-05-22 2000-11-01 松下电器产业株式会社 感温传感器及使用该感温传感器的电子设备
CN1288924A (zh) * 2000-10-24 2001-03-28 华东理工大学 单组份有机型导热胶泥
US6676290B1 (en) * 2002-11-15 2004-01-13 Hsueh-Yu Lu Electronic clinical thermometer
CN1540752A (zh) * 2003-04-24 2004-10-27 �鸿企业有限公司 一种变相转换导热胶材
CN1539901A (zh) * 2003-04-24 2004-10-27 忠山仪器有限公司 低温软化导热胶材组合物及其制备方法和应用
CN1545148A (zh) * 2003-11-25 2004-11-10 葛世潮 大功率发光二极管
CN1619267A (zh) * 2003-11-19 2005-05-25 众智光电科技股份有限公司 电子温度计
CN1970666A (zh) * 2005-11-24 2007-05-30 鸿富锦精密工业（深圳）有限公司 导热胶

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1278617A1 (ru) * 1985-04-08 1986-12-23 Предприятие П/Я В-2119 Теплопровод ща паста дл термопреобразовател сопротивлени
CN1072196A (zh) * 1991-11-10 1993-05-19 赵兴宏 导热胶泥
JPH05135849A (ja) * 1991-11-11 1993-06-01 Canon Inc ヒーター及び定着装置
CN2244718Y (zh) * 1995-08-08 1997-01-08 北京极星电子有限公司 具有视听功能的电子体温计
CN1272178A (zh) * 1998-05-22 2000-11-01 松下电器产业株式会社 感温传感器及使用该感温传感器的电子设备
CN1288924A (zh) * 2000-10-24 2001-03-28 华东理工大学 单组份有机型导热胶泥
US6676290B1 (en) * 2002-11-15 2004-01-13 Hsueh-Yu Lu Electronic clinical thermometer
CN1540752A (zh) * 2003-04-24 2004-10-27 �鸿企业有限公司 一种变相转换导热胶材
CN1539901A (zh) * 2003-04-24 2004-10-27 忠山仪器有限公司 低温软化导热胶材组合物及其制备方法和应用
CN1619267A (zh) * 2003-11-19 2005-05-25 众智光电科技股份有限公司 电子温度计
CN1545148A (zh) * 2003-11-25 2004-11-10 葛世潮 大功率发光二极管
CN1970666A (zh) * 2005-11-24 2007-05-30 鸿富锦精密工业（深圳）有限公司 导热胶

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