CN210664795U - NTC temperature sensor - Google Patents
NTC temperature sensor Download PDFInfo
- Publication number
- CN210664795U CN210664795U CN201921906674.2U CN201921906674U CN210664795U CN 210664795 U CN210664795 U CN 210664795U CN 201921906674 U CN201921906674 U CN 201921906674U CN 210664795 U CN210664795 U CN 210664795U
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- Prior art keywords
- temperature sensor
- ntc
- thermistor
- sheath
- pins
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- 238000009413 insulation Methods 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000005538 encapsulation Methods 0.000 abstract description 3
- 239000004593 Epoxy Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a NTC temperature sensor, including NTC thermistor, this NTC thermistor includes thermistor main part and two pins of setting in the thermistor main part, and every pin all is connected with a lead wire electricity, and the cover has an insulation support, two respectively on every pin insulation support is used for preventing to take place the short circuit between two pins, NTC thermistor quilt cover is in a high heat conduction sheath. The NTC temperature sensor provided by the utility model sheathes the thermistor main body through the high heat conduction sheath for insulation, the insulation sleeve protects two pins from short circuit, encapsulation epoxy resin is replaced for encapsulating and insulating the NTC thermistor, the heat conductivity coefficient of the high heat conduction sheath is high, thereby the sensitivity of the NTC temperature sensor is greatly improved, and the response time of the NTC temperature sensor is shortened; the high heat conduction insulating sheath is worn, and the assembly efficiency is higher.
Description
Technical Field
The utility model relates to a temperature sensor technical field, in particular to NTC temperature sensor.
Background
An NTC (negative temperature system) temperature sensor is a thermal semiconductor resistor, the resistance value of which decreases with an increase in temperature, and is widely used in various fields because of its high sensitivity and fast response speed. In the production process of the conventional NTC temperature sensor, two pins 1.1 'of the thermistor are electrically connected with the lead wires 2, respectively, and in order to avoid short circuit between the two pins, an encapsulating epoxy resin 3' is generally used for insulation protection, so that the connecting parts of the thermistor body 1.1 ', the pins 1.2' and the lead wires 2 'are all wrapped by the encapsulating epoxy resin 3' (see fig. 3). However, this encapsulation method has the following disadvantages: 1. the encapsulation epoxy resin needs to be heated and cured, the curing time is more than 3h, the waiting time is long, the production efficiency is low, and a large amount of electricity is consumed for heating and curing; 2. the encapsulating epoxy has a low thermal conductivity, typically 0.2W/(m.k), which results in a response time lag for the entire NTC temperature sensor.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, the present invention aims to provide a method.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a NTC temperature sensor, includes that NTC thermistor includes thermistor main part and two pins of setting in the thermistor main part, and every pin all is connected with a lead wire electricity, and the cover has an insulation support, two respectively on every pin insulation support is used for preventing to take place the short circuit between two pins, NTC thermistor is overlapped in a high heat conduction sheath.
The thermal conductivity of the high thermal conductivity sheath is greater than or equal to 1W/(m.K).
The two pins are arranged in parallel, and the insulating sleeve is a heat-shrinkable tube.
The high heat conduction sheath comprises a circular cap section and a straight pipe section.
The high thermal conductivity sheath is enclosed in a protective shell.
And the high-heat-conduction sheath and the protective shell are encapsulated by epoxy resin.
The pins and the corresponding leads are connected by welding.
Has the advantages that:
the utility model provides a NTC temperature sensor entangles the thermistor main part through high heat conduction sheath and insulates, and two pins of insulation support protection can not the short circuit, replace to encapsulate epoxy and encapsulate the insulation to NTC thermistor, effectively reduce the pollution of epoxy to the environment. In addition, the high-thermal-conductivity sheath has high thermal conductivity, so that the sensitivity of the NTC temperature sensor is greatly improved, the response time of the NTC temperature sensor is shortened, and the product performance of the NTC temperature sensor is improved; in the aspect of production efficiency, the high heat conduction insulating sheath is worn, the assembly efficiency is higher, and the electric quantity is not consumed additionally for heating.
Drawings
Fig. 1 is an explosion diagram of the NTC temperature sensor according to the present invention.
Fig. 2 is an assembly schematic diagram of the NTC temperature sensor according to the present invention.
Fig. 3 is a schematic structural diagram of a conventional NTC temperature sensor.
Detailed Description
The utility model provides a NTC temperature sensor, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the present invention provides an NTC temperature sensor, including an NTC thermistor 1, where the NTC thermistor 1 includes a thermistor main body 1.1 and two pins 1.2 disposed on the thermistor main body, each pin 1.2 is electrically connected to one lead wire 2, each pin 1.2 is sleeved with an insulating sleeve 3, two of the insulating sleeves 3 are used to prevent short circuit between two pins, and the NTC thermistor is sleeved in a high thermal conductive sheath 4.
Preferably, the thermal conductivity of the high thermal conductivity sheath 4 is greater than 1W/(m.k); the high thermal conductivity sheath may be a commercially available TISTM100 series heat conducting and insulating material, which is prepared by adding insulating silica gel base into heat conducting material, thus achieving the effects of insulation and heat conduction. In addition, the high-heat-conduction sheath made of the heat-conduction insulating material also has the advantages of tear resistance and puncture resistance, and well protects the NTC thermistor. Compared with the encapsulating epoxy resin, the high-thermal-conductivity sheath has high thermal conductivity coefficient, so that the sensitivity of the NTC temperature sensor is greatly improved, and the response time of the NTC temperature sensor is shortened by more than 20%.
In order to ensure compact structure, the lead 2 can be smoothly led out, the two pins 1.2 are arranged in parallel, and the insulating sleeve 3 is a heat-shrinkable tube. After the pins and the corresponding leads are connected by welding, sheathing a heat-shrinkable tube, so that the heat-shrinkable tube effectively insulates the pins and the connecting parts of the leads; and finally, heating and shrinking the heat shrink tube so as to fix the heat shrink tube on the pins.
The high heat conduction jacket 4 comprises a round cap section 4.1 and a straight pipe section 4.2. During assembly, the NTC thermistor extends into from the straight pipe section until the round cap section wraps the NTC thermistor, so that the whole NTC thermistor and the insulating sleeve are tightly wrapped by the high-heat-conduction sheath.
In particular, the sheath is enclosed in a protective casing 5. By arranging the protective shell, mechanical protection can be performed on the NTC thermosensitive shell, and fixed installation can be facilitated.
Furthermore, a gap between the high-thermal-conductivity sheath and the protective shell is filled with a sealant, and the sealant is epoxy resin. Therefore, the high-heat-conductivity sheath, the component arranged in the high-heat-conductivity sheath and the insulating part of the lead are fixed, and the position deviation in the use process is avoided.
The assembly process is briefly described below: firstly, two pins 1.2 of an NTC thermistor are arranged, then one lead wire 2 is respectively welded, and then an insulating sleeve 3 is sleeved on a connecting part of the pins 1.2 and the lead wires 2, so that short circuit cannot occur between the two pins 12; then, the high-thermal-conductivity sheath 4 is arranged on the thermistor main body 1.1 and the insulating sleeve 3, finally, the high-thermal-conductivity sheath 4 is installed in the protective shell 5, and the high-thermal-conductivity sheath 4 and the lead 2 are packaged and fixed in the protective shell through the epoxy resin 6.
The utility model provides a NTC temperature sensor compares with prior art, entangles the thermistor main part through high heat conduction sheath and insulates, and two pins of insulation support protection can not the short circuit, replace to encapsulate epoxy and encapsulate the insulation to NTC thermistor, effectively reduce the pollution of epoxy to the environment. In addition, the high-thermal-conductivity sheath has high thermal conductivity, so that the sensitivity of the NTC temperature sensor is greatly improved, the response time of the NTC temperature sensor is shortened, and the product performance of the NTC temperature sensor is improved; in the aspect of production efficiency, the high heat conduction insulating sheath is worn, the assembly efficiency is higher, and the electric quantity is not consumed additionally for heating.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (7)
1. The utility model provides a NTC temperature sensor, includes NTC thermistor, and this NTC thermistor includes thermistor main part and two pins that set up in the thermistor main part, and its characterized in that, every pin all are connected with a lead wire electricity, and the cover has an insulation support respectively on every pin, two insulation support is used for preventing to take place the short circuit between two pins, NTC thermistor quilt cover is in a high heat conduction sheath.
2. The NTC temperature sensor according to claim 1, wherein the thermal conductivity of the high thermal conductivity sheath is greater than or equal to 1W/(m.k).
3. The NTC temperature sensor of claim 1, wherein two of the pins are arranged in parallel, and the insulating sleeve is a heat shrink tube.
4. The NTC temperature sensor according to claim 1, wherein the highly thermally conductive jacket comprises a circular cap section and a straight tube section.
5. The NTC temperature sensor of claim 1, wherein the highly thermally conductive sheath is encapsulated in a protective shell.
6. The NTC temperature sensor of claim 5, wherein the gap between the sheath and the protective shell is filled with a sealant, and the sealant is epoxy resin.
7. The NTC temperature sensor according to claim 1, wherein the pins and corresponding leads are connected by soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921906674.2U CN210664795U (en) | 2019-11-06 | 2019-11-06 | NTC temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921906674.2U CN210664795U (en) | 2019-11-06 | 2019-11-06 | NTC temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210664795U true CN210664795U (en) | 2020-06-02 |
Family
ID=70816110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921906674.2U Expired - Fee Related CN210664795U (en) | 2019-11-06 | 2019-11-06 | NTC temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210664795U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117721A (en) * | 2020-09-27 | 2020-12-22 | 苏州仁甬得物联科技有限公司 | Circuit leading-out airtight structure |
| CN112798132A (en) * | 2020-12-30 | 2021-05-14 | 肇庆爱晟传感器技术有限公司 | High-water-resistance high-oil-resistance temperature sensor for narrow space and preparation thereof |
| CN114166805A (en) * | 2021-11-03 | 2022-03-11 | 格力电器（合肥）有限公司 | NTC temperature sensor detection method and device, NTC temperature sensor and manufacturing method |
-
2019
- 2019-11-06 CN CN201921906674.2U patent/CN210664795U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117721A (en) * | 2020-09-27 | 2020-12-22 | 苏州仁甬得物联科技有限公司 | Circuit leading-out airtight structure |
| CN112798132A (en) * | 2020-12-30 | 2021-05-14 | 肇庆爱晟传感器技术有限公司 | High-water-resistance high-oil-resistance temperature sensor for narrow space and preparation thereof |
| CN114166805A (en) * | 2021-11-03 | 2022-03-11 | 格力电器（合肥）有限公司 | NTC temperature sensor detection method and device, NTC temperature sensor and manufacturing method |
| CN114166805B (en) * | 2021-11-03 | 2024-01-30 | 格力电器（合肥）有限公司 | NTC temperature sensor detection method and device, NTC temperature sensor and manufacturing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 |