CN206523238U - Thermistor temperature sensor - Google Patents
Thermistor temperature sensor Download PDFInfo
- Publication number
- CN206523238U CN206523238U CN201621486097.2U CN201621486097U CN206523238U CN 206523238 U CN206523238 U CN 206523238U CN 201621486097 U CN201621486097 U CN 201621486097U CN 206523238 U CN206523238 U CN 206523238U
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- CN
- China
- Prior art keywords
- temperature
- sensitive element
- permanent magnet
- insulation tube
- plug
- 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 thermistor temperature sensor, including housing, the housing is by insulation tube, hex nut and plug composition, the inside of the housing is provided with filler, the inside of the plug is provided with inserted sheet and binding post, the plug is connected with the binding post, metal lead wire and temperature-sensitive element are provided with inside the insulation tube, one end of the metal lead wire is connected with the binding post, the other end is connected with the temperature-sensitive element, the temperature-sensitive element is provided with permanent magnet, the side of the permanent magnet is provided with fixed seat provided with sensing magnet steel opposite side, the sensing magnet steel and fixed seating are on the inwall of the insulation tube, spring is provided between the permanent magnet and the fixed seat, the permanent magnet is movably arranged on inside the insulation tube by spring, the utility model in temperature-sensitive element by setting over-temperature protection device, it is effectively protected temperature-sensitive element without prejudice, with simple in construction, it is easy to use, the advantages of using effect is good.
Description
Technical field
The utility model is related to temperature sensor technology field, specially a kind of thermistor temperature sensor.
Background technology
Thermometer reaches thermal balance by conduction or convection current, so that the indicating value of thermometer can directly represent measurand
Temperature.General measure precision is higher.In certain temperature-measuring range, the Temperature Distribution of thermometer also measurable interior of articles.But
Larger measurement error can be then produced for the object of movable body, Small object or thermal capacity very little, conventional temperature is in respect of double gold
Belong to thermometer, glass liquid thermometer, pressure-type thermometer, resistance thermometer, thermistor and thermoelectric couple etc..They are extensive
Applied to departments such as industry, agricultural, business.People also usually use these thermometers in daily life.With cryogenic technique
Extensive use and superconductor technology in departments such as defence engineering, space technology, metallurgy, electronics, food, medicine and petrochemical industries
Research, the low-reading thermometer of measurement 120K temperature below is developed, such as cold-gas temperature meter, vapour tension thermometer, sound
Learn thermometer, paramagnetic salt thermometer, quantum thermometer, low temperature thermal resistance and low temperature thermoelectric couple etc..Low-reading thermometer requires sense
Warm component size is small, the degree of accuracy is high, repdocutbility and stability are good.Utilize the carburizing glass of porous borosilicate glass carbusintering
Glass thermal resistance is exactly a kind of temperature-sensing element of low-reading thermometer, available for the temperature in the range of 1.6~300K of measurement
Temperature sensor is the rule varied with temperature using the various physical properties of material the biography that temperature transition is electricity
Sensor, temperature sensor is the core of temperature measuring instrument, is divided into thermoelectricity according to sensor material and electron component characteristic
Resistance and thermocouple, the suitable different temperatures of temperature-sensitive elements different in actual use are interval, if temperature is beyond heat
The optimal use of quick element is interval, temperature survey can be caused inaccurate, also temperature-sensitive element can be caused damage.
Utility model content
The purpose of this utility model is to provide a kind of thermistor temperature sensor, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical scheme：A kind of thermistor temperature sensor, bag
Housing is included, the housing is made up of insulation tube, hex nut and plug, the inside of the housing is provided with filler, the plug
Inside is provided with inserted sheet and binding post, and the plug is connected with the binding post, and metal lead wire is provided with inside the insulation tube
And temperature-sensitive element, one end of the metal lead wire is connected with the binding post, and the other end is connected with the temperature-sensitive element, described
Temperature-sensitive element is provided with permanent magnet, and the side of the permanent magnet is provided with fixed seat, the temperature-sensing magnetic provided with sensing magnet steel opposite side
Steel and fixed seating are provided with spring, the permanent magnetism on the inwall of the insulation tube between the permanent magnet and the fixed seat
Body is movably arranged on inside the insulation tube by spring.
It is preferred that, it is provided with external screw thread and sealing ring on the hex nut.
It is preferred that, the temperature-sensitive element is semistor PT100.
It is preferred that, the sensing magnet steel is set for annular, and the temperature-sensitive element is arranged at the center of the sensing magnet steel.
Compared with prior art, the beneficial effects of the utility model are：Under utility model works state, permanent magnet and sense
Warm magnet steel attracts connection under the influence of a magnetic field, and now temperature-sensitive element is contacted with object being measured, is produced inside temperature sensor
Potential difference, the numerical value of this potential difference is relevant with the temperature for being not added with hot spot measurement point, so that the measurement to temperature change is realized,
If when the temperature of testee is more than the maximum temperature that temperature-sensitive element is surveyed, sensing magnet steel can be with temperature in measurement process
Rise magnetic field intensity decline, permanent magnet departs under the action of the spring with sensing magnet steel, temperature-sensitive element and object being measured with
Disengaging so that it is without prejudice to be effectively protected temperature-sensitive element, have the advantages that simple in construction, easy to use, using effect is good.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model insulation tube end view.
In figure：1- inserted sheets；2- binding posts；3- sealing rings；4- metal lead wires；5- fixed seats；6- temperature-sensitive elements；7- temperature-sensitives
Magnet steel；8- permanent magnets；9- insulation tubes；10- hex nuts；11- plugs；12- springs；13- housings.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of thermistor temperature sensor, including
Housing 13, the housing 13 is made up of insulation tube 9, hex nut 10 and plug 11, and the inside of the housing 13 is provided with filler, institute
The inside for stating plug 11 is provided with inserted sheet 1 and binding post 2, and the plug 11 is connected with the binding post 2, the insulation tube 9
Inside is provided with metal lead wire 4 and temperature-sensitive element 6, and one end of the metal lead wire 4 is connected with the binding post 2, the other end and
The temperature-sensitive element 6 is connected, and the temperature-sensitive element 6 is provided with permanent magnet 8, and the side of the permanent magnet 8 is another provided with sensing magnet steel 7
Side is provided with fixed seat 5, and the sensing magnet steel 7 and fixed seat 5 are located on the inwall of the insulation tube 9, the permanent magnet 8 and institute
State and spring 12 is provided between fixed seat 5, the permanent magnet 8 is movably arranged on inside the insulation tube 9 by spring 12.
External screw thread and sealing ring 3 are provided with the hex nut 10；The temperature-sensitive element 6 is positive temperature coefficient temperature-sensitive electricity
Hinder PT100；The sensing magnet steel 7 is set for annular, and the temperature-sensitive element 6 is arranged at the center of the sensing magnet steel 7.
Operation principle：Under working condition, permanent magnet 8 attracts to be connected under the influence of a magnetic field with sensing magnet steel 7, now temperature-sensitive
Element 6 is contacted with object being measured, potential difference is produced inside temperature sensor, the numerical value of this potential difference is with being not added with hot spot survey
The temperature for measuring point is relevant, so that the measurement to temperature change is realized, if the temperature of testee is more than heat in measurement process
During the maximum temperature that quick element 6 is surveyed, sensing magnet steel 7 can decline with the rise magnetic field intensity of temperature, permanent magnet 8 and temperature-sensing magnetic
Steel 7 departs from the presence of spring 12, and temperature-sensitive element 6 departs from therewith with object being measured, so as to be effectively protected temperature-sensitive element 6
It is without prejudice.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of thermistor temperature sensor, including housing（13）, it is characterised in that：The housing（13）By insulation tube
（9）, hex nut（10）And plug（11）Composition, the housing（13）Inside be provided with filler, the plug（11）Inside
Provided with inserted sheet（1）And binding post（2）, the plug（11）With the binding post（2）Connection, the insulation tube（9）It is internal
Provided with metal lead wire（4）And temperature-sensitive element（6）, the metal lead wire（4）One end and the binding post（2）Connection, it is another
End and the temperature-sensitive element（6）Connection, the temperature-sensitive element（6）It is provided with permanent magnet（8）, the permanent magnet（8）Side set
There is sensing magnet steel（7）Opposite side is provided with fixed seat（5）, the sensing magnet steel（7）And fixed seat（5）Positioned at the insulation tube（9）
Inwall on, the permanent magnet（8）With the fixed seat（5）Between be provided with spring（12）, the permanent magnet（8）Pass through spring
（12）It is movably arranged on the insulation tube（9）It is internal.
2. a kind of thermistor temperature sensor according to claim 1, it is characterised in that：The hex nut（10）
On be provided with external screw thread and sealing ring（3）.
3. a kind of thermistor temperature sensor according to claim 1, it is characterised in that：The temperature-sensitive element（6）
For semistor PT100.
4. a kind of thermistor temperature sensor according to claim 1, it is characterised in that：The sensing magnet steel（7）
Set for annular, the temperature-sensitive element（6）It is arranged at the sensing magnet steel（7）Center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486097.2U CN206523238U (en) | 2016-12-31 | 2016-12-31 | Thermistor temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486097.2U CN206523238U (en) | 2016-12-31 | 2016-12-31 | Thermistor temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206523238U true CN206523238U (en) | 2017-09-26 |
Family
ID=59889459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621486097.2U Expired - Fee Related CN206523238U (en) | 2016-12-31 | 2016-12-31 | Thermistor temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206523238U (en) |
-
2016
- 2016-12-31 CN CN201621486097.2U patent/CN206523238U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171010 Address after: Two road 518000 Guangdong city of Shenzhen province Nanshan District Xili Hom industrial building B No. 11 601-1 Patentee after: SHENZHEN OULD INSTRUMENT CO., LTD. Address before: 523808 Guangdong province Dongguan City Songshan Lake Science and Technology Industrial Park Building No. 18 room 314 Keyuan pine Patentee before: Dongguan Jin Yufeng Intellectual Property Service Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 Termination date: 20181231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |