CN201266118Y - Contact type high tension-resistant thermometer - Google Patents
Contact type high tension-resistant thermometer Download PDFInfo
- Publication number
- CN201266118Y CN201266118Y CNU2008201601087U CN200820160108U CN201266118Y CN 201266118 Y CN201266118 Y CN 201266118Y CN U2008201601087 U CNU2008201601087 U CN U2008201601087U CN 200820160108 U CN200820160108 U CN 200820160108U CN 201266118 Y CN201266118 Y CN 201266118Y
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- CN
- China
- Prior art keywords
- thermometer
- temperature sensor
- contact
- aluminium flake
- high voltage
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a contact high pressure resisting thermometer. A contact end of the thermometer is formed by an aluminum nitride wafer, a main body of the thermometer is formed by an epoxy material housing, a temperature sensor is positioned in the epoxy material housing and is clung on the aluminum nitride wafer, a temperature signal wire is led out of the epoxy material housing, an epoxy cover is covered on the epoxy material housing, and the whole thermometer is sealed by epoxy glue. The utility model has simple structure, and applies the aluminum nitride wafer as the contact end so as to avoid the disadvantage brought by the direct contact; the insulativity and the thermal conductance of the aluminum nitride wafer can meet the requirement of the thermometer, therefore, a measuring system of the utility model has simpler structure and lower cost compared with the prior art.
Description
Technical field
The utility model relates to a kind of thermometer, the high voltage withstanding thermometer of particularly a kind of contact.
Background technology
In the prior art, when temperature sensor has the temperature of object of high voltage in measurement, the general contact method that adopts, be that temperature sensor directly contacts the object being measured with high voltage, temperature sensor sends measuring-signal according to measured temperature then, measuring-signal is drawn with high voltage withstanding measurement lead, and in the temperature sensor of traditional measurement high voltage object, measuring-signal also must be earlier through isolated amplifier before entering measuring system.Therefore the contact method that when the temperature of the object of measuring high voltage, adopts of prior art, often the constituent material to temperature sensor requires very high, promptly need the constituent material of temperature sensor to have good insulation performance and thermal conductivity, make the cost of temperature sensor increase many like this, simultaneously because signal must be earlier through isolated amplifier before entering measuring system, the complexity that this just makes whole temperature measurement system become, the also corresponding complexity of the step of measurement is got up.
The utility model content
The technical problems to be solved in the utility model provides the high voltage withstanding thermometer of a kind of easy contact, and this thermometer is simple in structure, and cost is lower, the measuring accuracy height, and whole measuring system is comparatively simple.
The technical solution of the utility model is as follows:
The high voltage withstanding thermometer of a kind of contact, comprise temperature sensor and the signal wire that is connected with temperature sensor, it is characterized in that: include the nitrogenize aluminium flake, temperature sensor is posted on described nitrogenize aluminium flake surface, described nitrogenize aluminium flake is covered with the outer cover that epoxy material is made, the temperature signal line of described temperature sensor is drawn from outer cover, and described outer cover and nitrogenize aluminium flake contact position, outer cover and temperature signal line contact position seal with epoxy glue.
Described temperature sensor sticks on the nitrogenize aluminium flake by heat-conducting glue.
The utility model adopts the nitrogenize aluminium flake to separate temperature sensor and tested high voltage object, high voltage is to the infringement of temperature sensor when having avoided direct the contact like this, also reduced simultaneously requirement to the temperature sensor constituent material, reduced the cost of measuring system, the measuring-signal that temperature sensor spread out of does not need through isolated amplifier yet, and the whole measuring system complexity is reduced.Therefore the utility model can directly be measured the temperature that the high voltage object is arranged fast, accurately.
Description of drawings
Fig. 1 is the structural drawing of the high voltage withstanding thermometer of contact
Below in conjunction with accompanying drawing the utility model is further described.
Embodiment
The high voltage withstanding thermometer of a kind of contact, comprise temperature sensor 1 and the temperature signal line 2 that is connected with temperature sensor, nitrogenize aluminium flake 3, temperature sensor 1 sticks on nitrogenize aluminium flake 3 surfaces by heat-conducting glue, described nitrogenize aluminium flake 3 is covered with the outer cover 4 that epoxy material is made, the temperature signal line 2 of described temperature sensor 1 is drawn from outer cover 4, and described outer cover 4 seals with epoxy glue 5 with temperature signal line 2 contact positions with nitrogenize aluminium flake 3 contact positions, outer cover 4.
Temperature signal line 2 is high voltage withstanding signal letter, is used for the signal that temperature sensor 1 obtains is passed to measuring system.Nitrogenize aluminium flake 3 is bases of epoxy material outer cover 4, it is a thin slice, nitrogenize aluminium flake 3 is as the material of insulation and heat transfer, its feature is that coefficient of heat conductivity is greater than the metal stainless steel, and high voltage withstanding greatly about 15V/mm, so the utility model adopts nitrogenize aluminium flake 3 as the surface of contact that contacts with measured high voltage withstanding object.
Epoxy material outer cover 4 inner hollow, temperature sensor 1 just are positioned in the epoxy material outer cover 4, and whole epoxy material outer cover 4 has just formed the cavity of a sealing.Seal up all sealing surfaces and interface with epoxy glue, the cavity that the has guaranteed sealing like this heat that is hedged off from the outer world, in epoxy material outer cover 4, temperature sensor 1 is separated with epoxy glue, temperature sensor 1 and extraneous exchange heat have so just further been completely cut off, guaranteed that temperature sensor 1 measured temperature value is the temperature value of tested high voltage object, has reduced the influence of external environment to temperature sensor 1.
There is an end of nitrogenize aluminium flake 3 well to contact the high voltage withstanding temperature sensor 1 of this contact during measurement with measured high voltage object, temperature sensor 1 is by the temperature of the tested high voltage object of nitrogenize aluminium flake 3 induction, and by signal wire signal passed to measuring system.The utility model to response time of object temperature less than 0.5 second, precision is less than ± 0.1 ℃.Do the test of 5KV proof voltage, leakage current is less than 5 μ A.
Claims (2)
1, the high voltage withstanding thermometer of a kind of contact, comprise temperature sensor and the signal wire that is connected with temperature sensor, it is characterized in that: include the nitrogenize aluminium flake, temperature sensor is posted on described nitrogenize aluminium flake surface, described nitrogenize aluminium flake is covered with the outer cover that epoxy material is made, the temperature signal line of described temperature sensor is drawn from outer cover, and described outer cover and nitrogenize aluminium flake contact position, outer cover and temperature signal line contact position seal with epoxy glue.
2, the high voltage withstanding thermometer of contact according to claim 1 is characterized in that described temperature sensor sticks on the nitrogenize aluminium flake by heat-conducting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201601087U CN201266118Y (en) | 2008-09-26 | 2008-09-26 | Contact type high tension-resistant thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201601087U CN201266118Y (en) | 2008-09-26 | 2008-09-26 | Contact type high tension-resistant thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266118Y true CN201266118Y (en) | 2009-07-01 |
Family
ID=40832492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201601087U Expired - Fee Related CN201266118Y (en) | 2008-09-26 | 2008-09-26 | Contact type high tension-resistant thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266118Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894904A (en) * | 2010-07-15 | 2010-11-24 | 电子科技大学 | Metal-base film thermocouple and preparation method thereof |
| CN109186805A (en) * | 2018-09-12 | 2019-01-11 | 刘凯 | A kind of clinical thermometer |
-
2008
- 2008-09-26 CN CNU2008201601087U patent/CN201266118Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894904A (en) * | 2010-07-15 | 2010-11-24 | 电子科技大学 | Metal-base film thermocouple and preparation method thereof |
| CN101894904B (en) * | 2010-07-15 | 2011-12-28 | 电子科技大学 | Metal-base film thermocouple and preparation method thereof |
| CN109186805A (en) * | 2018-09-12 | 2019-01-11 | 刘凯 | A kind of clinical thermometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20110926 |