CN205940796U - High temperature, high sensitivity's temperature sensor - Google Patents
High temperature, high sensitivity's temperature sensor Download PDFInfo
- Publication number
- CN205940796U CN205940796U CN201620891311.6U CN201620891311U CN205940796U CN 205940796 U CN205940796 U CN 205940796U CN 201620891311 U CN201620891311 U CN 201620891311U CN 205940796 U CN205940796 U CN 205940796U
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- temperature sensor
- critesistor
- high temperature
- temperature
- lead
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Abstract
The utility model discloses a high temperature, high sensitivity's temperature sensor, include the casing, the inside of casing is equipped with and holds the chamber, and the lower extreme that holds the chamber is equipped with thermistor, holds the upper end in chamber and installs the lead wire cover, wears to be equipped with the connecting wire who puts through with thermistor in the lead wire cover, is equipped with resilient means between thermistor and the lead wire cover, and resilient means extrudees thermistor for the piece of resistant high temperature insulation on the casing bottom surface is hugged closely to thermistor's temperature sensing face. The utility model discloses, through resilient means extrusion thermistor, messenger thermistor's temperature sensing face and casing bottom surface in close contact with to the sensitivity that improves thermistor, simple structure, it is with low costs, the temperature sensing sensitivity that has improved temperature sensor greatly.
Description
Technical field
This utility model is related to temperature sensor field and in particular to a kind of high temperature, highly sensitive temperature sensor.
Background technology
Temperature sensor is current oven, conventional temperature testing equipment in baking box, for the temperature in real-time detection baking box
Spend and change into exportable temperature signal, existing temperature sensor generally adopts totally enclosed type high temperature sensor, example
As disclosed a kind of temperature sensor in Chinese patent literature CN103123282A, including setting sensor unit in the housing
Part, described sensor element, by Heat Conduction Material, is completely enclosed within described housing.
The response speed that this temperature sensor has temperature sensor during detection temperature is slow, the asking of poor sensitivity
Topic.
Utility model content
Technical problem to be solved in the utility model is that existing temperature sensor exists during detection temperature
The response speed of temperature sensor is slow, the problem of poor sensitivity.
In order to solve above-mentioned technical problem, this utility model be employed technical scheme comprise that a kind of offer high temperature, highly sensitive
The temperature sensor of degree, including housing, the inside of described housing is provided with accommodating chamber, and the lower end of described accommodating chamber is provided with temperature-sensitive electricity
Resistance, leaded cover is installed in the upper end of described accommodating chamber, is coated with the connection connected with described critesistor and leads in described lead cover
Line, is provided with elastic element between described critesistor and described lead cover, described elastic element extrude described critesistor so that
The high-temperature insulation piece in described housing bottom surface is close in the temperature-sensitive face of described critesistor.
In such scheme, the upper end of described critesistor is provided with and is slidably arranged in the described location-plate accommodating intracavity, institute
The lower end stating elastic element is resisted against on the upper surface of described location-plate.
In such scheme, the middle part of described location-plate has the through hole passing through for described connecting wire.
In such scheme, described lead cover includes passing the lead cannula portion of described housing upper surface and is arranged on described
The lead case portion of lead cannula portion lower end, the upper end of described elastic element is resisted against on the lower surface in described lead case portion.
In such scheme, described lead case portion is in that semicircle is spherical, and is provided with the middle part of bottom surface and wears for described connecting wire
The passage crossed.
In such scheme, the upper end of described housing is installed with the fixed plate around described lead cannula portion periphery, described
It is provided with sealing gasket between the inwall of the bottom surface of fixed plate and described housing.
This utility model, extrudes critesistor by elastic element, makes the temperature-sensitive face of critesistor tight with housing bottom surface
Contact, thus improving the sensitivity of critesistor, structure is simple, low cost, and the temperature-sensitive substantially increasing temperature sensor is sensitive
Degree.
Brief description
Fig. 1 is sectional view of the present utility model.
Specific embodiment
With reference to Figure of description, this utility model is described in detail.
As shown in figure 1, this utility model provides a kind of high temperature, highly sensitive temperature sensor, including housing 1, shell
The lower end of body 1 is blind end, and upper end is opening end, and the inside of housing 1 is provided with accommodating chamber 11, and the lower end of accommodating chamber 11 is provided with temperature-sensitive
Resistance 5, critesistor 5 can be with the different resistance of different temperature change output, this utility model, the temperature that sensor uses
Scope is -60～400 DEG C, and when the temperature that temperature sensor is sensed changes, the resistance value of its critesistor 5 also can
Correspondingly change, thus corresponding temperature is detected according to different resistance values.
Leaded cover 3 is installed in the upper end of accommodating chamber 11, is coated with connecting wire 4, the upper end of connecting wire 4 in lead cover 3
Pass lead cover 3, be connected with other equipment, the lower end of connecting wire 4 is connected with critesistor 5.
Specifically, lead cover 3 includes passing the lead cannula portion 31 of housing 1 upper surface and is arranged under lead cannula portion 31
The lead case portion 32 at end, lead case portion 32 is in that semicircle is spherical, and is provided with the passage passing through for connecting wire 4 in the middle part of bottom surface.
Be provided with elastic element 6 between critesistor 5 and lead cover 3, in this utility model, elastic element adopt spring or
Other have the structure of flexible characte, and elastic element 6 extruding critesistor 5 is so that housing 1 is close in the temperature-sensitive face of critesistor 5
High-temperature insulation piece 8 on bottom surface, high-temperature insulation piece makes this temperature sensor have good resistance to elevated temperatures, temperature-sensitive electricity
High-temperature insulation piece is close in the temperature-sensitive face of resistance 5, substantially increases the heat sensitivity of critesistor 5.
Preferably, the upper end of critesistor 5 is provided with the location-plate 7 being slidably arranged in accommodating chamber 11, under elastic element 6
End is resisted against on the upper surface of location-plate 7, and the middle part of location-plate 7 has the through hole passing through for connecting wire 4, and location-plate 7 is effective
Limit the position of elastic element 6, the upper end of elastic element 6 is resisted against on the lower surface in lead case portion 32.Elastic element 6 is fixed
It is in compressive state, the elastic pressure of generation passes to location-plate 7 so as to along accommodating chamber between position plate 7 and lead case portion 32
11 slide downward simultaneously extrude critesistor 5 so that critesistor 5 is contacted with the bottom surface that housing goes.
The upper end of housing 1 is installed with the fixed plate 2 around lead cannula portion 31 periphery, and fixed plate 2 is by the opening end of housing 1
Seal, prevent dust or impurity from entering, and the position of effective anchor leg cannula portion 31.The bottom surface of fixed plate 2 and housing 1
It is provided with sealing gasket 21, sealing effectiveness is good between inwall.
This utility model, extrudes critesistor by elastic element, makes the temperature-sensitive face of critesistor tight with housing bottom surface
Contact, thus improving the sensitivity of critesistor, structure is simple, low cost, and the temperature-sensitive substantially increasing temperature sensor is sensitive
Degree.
This utility model is not limited to above-mentioned preferred forms, and anyone should learn under enlightenment of the present utility model
The structure change made, every have same or like technical scheme with this utility model, each falls within guarantor of the present utility model
Within the scope of shield.
Claims (6)
1. a kind of high temperature, highly sensitive temperature sensor, including housing, the inside of described housing is provided with accommodating chamber, its feature
It is, the lower end of described accommodating chamber is provided with critesistor, and the upper end of described accommodating chamber is installed leaded cover, worn in described lead cover
Equipped with the connecting wire connected with described critesistor, it is provided with elastic element between described critesistor and described lead cover, institute
State elastic element extrude described critesistor so that the temperature-sensitive face of described critesistor be close to high temperature resistant in described housing bottom surface
Insulating trip.
2. as claimed in claim 1 a kind of high temperature, highly sensitive temperature sensor it is characterised in that described critesistor
Upper end be provided be slidably arranged in described accommodate intracavity location-plate, the lower end of described elastic element is resisted against described location-plate
On upper surface.
3. as claimed in claim 2 a kind of high temperature, highly sensitive temperature sensor it is characterised in that described location-plate
Middle part has the through hole passing through for described connecting wire.
4. as claimed in claim 1 a kind of high temperature, highly sensitive temperature sensor it is characterised in that described lead cover bag
Include the lead cannula portion passing described housing upper surface and the lead case portion being arranged on described lead cannula portion lower end, described bullet
The upper end of property device is resisted against on the lower surface in described lead case portion.
5. as claimed in claim 4 a kind of high temperature, highly sensitive temperature sensor it is characterised in that described lead case
Portion is in that semicircle is spherical, and is provided with the passage passing through for described connecting wire in the middle part of bottom surface.
6. as claimed in claim 4 a kind of high temperature, highly sensitive temperature sensor it is characterised in that described housing upper
End is installed with the fixed plate around described lead cannula portion periphery, sets between the inwall of the bottom surface of described fixed plate and described housing
There is sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891311.6U CN205940796U (en) | 2016-08-17 | 2016-08-17 | High temperature, high sensitivity's temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891311.6U CN205940796U (en) | 2016-08-17 | 2016-08-17 | High temperature, high sensitivity's temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205940796U true CN205940796U (en) | 2017-02-08 |
Family
ID=57917952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620891311.6U Active CN205940796U (en) | 2016-08-17 | 2016-08-17 | High temperature, high sensitivity's temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205940796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996837A (en) * | 2017-06-07 | 2017-08-01 | 佛山市程显科技有限公司 | A kind of electric heating vessel heat-sensitive sensor |
-
2016
- 2016-08-17 CN CN201620891311.6U patent/CN205940796U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996837A (en) * | 2017-06-07 | 2017-08-01 | 佛山市程显科技有限公司 | A kind of electric heating vessel heat-sensitive sensor |
| CN106996837B (en) * | 2017-06-07 | 2019-01-22 | 佛山市程显科技有限公司 | A kind of electric heating vessel heat-sensitive sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |