CN204165668U - A kind of NTC sensor detecting solid surface temperature - Google Patents
A kind of NTC sensor detecting solid surface temperature Download PDFInfo
- Publication number
- CN204165668U CN204165668U CN201420640040.8U CN201420640040U CN204165668U CN 204165668 U CN204165668 U CN 204165668U CN 201420640040 U CN201420640040 U CN 201420640040U CN 204165668 U CN204165668 U CN 204165668U
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- China
- Prior art keywords
- ntc
- surface temperature
- solid surface
- sensor detecting
- wire
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Abstract
The utility model relates to a kind of NTC sensor detecting solid surface temperature, comprise NTC chip, described NTC chip is by two aromatic polyamide enameled wire clampings, and two bites are fixed by stationary installation, and the wire diameter of described aromatic polyamide enameled wire is 0.2 ~ 0.3mm; Described NTC chip is placed in ball type terminal through epoxy resin insulating layers sealing, and every root aromatic polyamide enameled wire is drawn and passed through the first splicing ear and crimps with a conductive lead wire from epoxy resin insulating layers.The NTC size sensor that the utility model provides is little, high temperature resistant, be quick on the draw and precision is high, can measure the surface temperature of solid matter preferably.
Description
Technical field
The utility model relates to a kind of NTC sensor, for detecting the surface temperature of solid matter.
Background technology
NTC:Negative Temperature Coefficient, negative temperature coefficient, the semiconductor material that general reference negative temperature coefficient is very large or components and parts.At present, for detecting the temperature sensor of solid matter surface temperature, the general radial lug NTC thermistor or radial pearl glass-encapsulated NTC thermistor or axial glass of adopting seals formula NTC thermistor.Wherein, radial lug NTC thermistor cannot test more than 150 DEG C temperature for a long time due to reasons in structure; Radial pearl glass-encapsulated NTC thermistor cost is high, and precision is low; The reaction of axial glass envelope formula NTC thermistor is insensitive, and volume is large.And at present to the sensitivity of solid matter surface temperature sensing and accuracy requirement more and more higher, dimensional requirement is more and more less, and detectable temperature range requirements is more and more wider, and above-mentioned solid matter surface temperature detecting sensor cannot meet.
Therefore be necessary to design a kind of NTC sensor detecting solid surface temperature, to overcome the problems referred to above.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provide a kind of size little, high temperature resistant, be quick on the draw and the NTC sensor of the high detection solid surface temperature of precision.
The utility model is achieved in that
The utility model provides a kind of NTC sensor detecting solid surface temperature, comprise NTC chip, described NTC chip is by two aromatic polyamide enameled wire clampings, and two bites are fixed by stationary installation, and the wire diameter of described aromatic polyamide enameled wire is 0.2 ~ 0.3mm; Described NTC chip is placed in ball type terminal through epoxy resin insulating layers sealing, and every root aromatic polyamide enameled wire is drawn and passed through the first splicing ear and crimps with a conductive lead wire from epoxy resin insulating layers.
Further, described ball type terminal is of a size of Φ 2.2mm*5.2mm.
Further, described stationary installation is silver paste.
Further, described first splicing ear is O type terminal.
Further, described conductive lead wire is Teflon electric wire.
Further, described aromatic polyamide enameled wire and conductive lead wire junction are socketed with the first heat-shrink tube.
Further, the diameter of described first heat-shrink tube is 1mm.
Further, the second heat-shrink tube is arranged with outside described conductive lead wire.
Further, also comprise installation and mould seat; The described conductive lead wire other end is connected with the second splicing ear, and described second splicing ear is located at installation and is moulded in seat.
The utility model has following beneficial effect: adopt aromatic polyamide enameled wire, instead of traditional electric wire, wire diameter is less, and therefore the encapsulating size of sensor is less, reacts sensitiveer.Owing to not adopting the mode of glass-encapsulated, the size of NTC chip can be larger, and the package temperature of NTC chip seals the low of formula NTC thermistor compared with glass, therefore chip cutting process and encapsulation process affect less on the resistance of heat sensitive chip, its resistance concentration degree is better, and the detection accuracy of NTC sensor is higher.
Further beneficial effect of the present utility model is: the mode fix N TC chip adopting silver paste to fix and the bite of aromatic polyamide enameled wire, instead of traditional soldering to connect, make sensor more stable when applied at elevated temperature, and detectable surface temperature is higher.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the epoxy resin insulating layers encapsulating NTC chip that Fig. 1 provides for the utility model embodiment;
Fig. 2 is placed in the structural representation in ball type terminal for NTC chip that the utility model embodiment provides;
A kind of structural representation detecting the NTC sensor of solid surface temperature that Fig. 3 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of the utility model protection.
As Fig. 1-Fig. 3, the utility model embodiment provides a kind of NTC sensor detecting solid surface temperature, comprise NTC chip 1, described NTC chip 1 is clamped by two aromatic polyamide enameled wires 2, two bites are fixed by stationary installation, and the wire diameter of described aromatic polyamide enameled wire 2 is 0.2 ~ 0.3mm.Described NTC chip 1 is placed in ball type terminal 4 through epoxy resin insulating layers 9 sealing, and wherein, described ball type terminal 4 is of a size of Φ 2.2mm*5.2mm.Every root aromatic polyamide enameled wire 2 is drawn and is crimped with a conductive lead wire 6 by the first splicing ear 5 from epoxy resin insulating layers 9, and wherein said first splicing ear 5 is O type terminal, and described conductive lead wire 6 is Teflon electric wire.In addition, described stationary installation is silver paste 3.By adopting aromatic polyamide enameled wire 2, instead of traditional electric wire, because the wire diameter of aromatic polyamide enameled wire 2 is less, therefore, size for the epoxy resin insulating layers 9 sealing NTC chip 1 and described two bites is less, and its head diameter can at about 1mm; And the epoxy resin insulating layers 9 after adopting tinned wird to clamp NTC chip 1, its head diameter is not less than 1.9mm.Therefore, the encapsulating size of the NTC thermistor sensor in the present embodiment is less, reacts sensitiveer.The mode fix N TC chip 1 fixed by adopting silver paste 3 and the bite of aromatic polyamide enameled wire 2, instead of traditional soldering to connect, make the NTC thermistor sensor in the present embodiment more stable when applied at elevated temperature, and detectable surface temperature is higher, the surface temperature of detectable height to 300 DEG C.Owing to not adopting the mode of glass-encapsulated, the size of NTC chip can be larger, and the package temperature of NTC chip seals the low of formula NTC thermistor compared with glass, therefore chip cutting process and encapsulation process affect less on the resistance of heat sensitive chip, its resistance concentration degree is better, and the detection accuracy of NTC thermistor sensor is higher.
As Fig. 3, in the present embodiment, described aromatic polyamide enameled wire 2 is socketed with the first heat-shrink tube 7 with conductive lead wire 6 junction, and the diameter of described first heat-shrink tube 7 is 1mm.Further, the second heat-shrink tube 10 is arranged with outside described conductive lead wire 6.Take this mode can available protecting aromatic polyamide enameled wire 2 and conductive lead wire 6.In addition, the NTC thermistor sensor in the present embodiment also comprises installation and moulds seat 8; Described conductive lead wire 6 other end is connected with the second splicing ear, and described second splicing ear is located at installation and is moulded in seat 8.External second splicing ear of conductive lead wire 6 and installation are moulded seat 8 and are made NTC thermistor sensor be convenient to be connected with circuit board.During actual use; mould between seat 8 at ball type terminal 4 and installation and connect the second heat-shrink tube 10; the part that aromatic polyamide enameled wire 2 can be drawn from ball type terminal 4 by this mode and conductive lead wire 6 are all placed in the second heat-shrink tube 10, thus better protection aromatic polyamide enameled wire 2 and conductive lead wire 6.
A kind of NTC sensor detecting solid surface temperature that the utility model embodiment provides, its size is little, high temperature resistant, be quick on the draw and precision is high, can measure the surface temperature of solid matter preferably.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. one kind detects the NTC sensor of solid surface temperature, comprise NTC chip, it is characterized in that: described NTC chip is by two aromatic polyamide enameled wire clampings, and two bites are fixed by stationary installation, and the wire diameter of described aromatic polyamide enameled wire is 0.2 ~ 0.3mm; Described NTC chip is placed in ball type terminal through epoxy resin insulating layers sealing, and every root aromatic polyamide enameled wire is drawn and passed through the first splicing ear and crimps with a conductive lead wire from epoxy resin insulating layers.
2. a kind of NTC sensor detecting solid surface temperature according to claim 1, is characterized in that: described ball type terminal is of a size of Φ 2.2mm*5.2mm.
3. a kind of NTC sensor detecting solid surface temperature according to claim 1 and 2, is characterized in that: described stationary installation is silver paste.
4. a kind of NTC sensor detecting solid surface temperature according to claim 1 and 2, is characterized in that: described first splicing ear is O type terminal.
5. a kind of NTC sensor detecting solid surface temperature according to claim 1, is characterized in that: described conductive lead wire is Teflon electric wire.
6. a kind of NTC sensor detecting solid surface temperature according to claim 1 or 5, is characterized in that: described aromatic polyamide enameled wire and conductive lead wire junction are socketed with the first heat-shrink tube.
7. a kind of NTC sensor detecting solid surface temperature according to claim 6, is characterized in that: the diameter of described first heat-shrink tube is 1mm.
8. a kind of NTC sensor detecting solid surface temperature according to claim 1 or 5, is characterized in that: be arranged with the second heat-shrink tube outside described conductive lead wire.
9. a kind of NTC sensor detecting solid surface temperature according to claim 1, is characterized in that: also comprise installation and mould seat; The described conductive lead wire other end is connected with the second splicing ear, and described second splicing ear is located at installation and is moulded in seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640040.8U CN204165668U (en) | 2014-10-31 | 2014-10-31 | A kind of NTC sensor detecting solid surface temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640040.8U CN204165668U (en) | 2014-10-31 | 2014-10-31 | A kind of NTC sensor detecting solid surface temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204165668U true CN204165668U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420640040.8U Expired - Fee Related CN204165668U (en) | 2014-10-31 | 2014-10-31 | A kind of NTC sensor detecting solid surface temperature |
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| Country | Link |
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| CN (1) | CN204165668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353001A (en) * | 2016-10-08 | 2017-01-25 | 孝感华工高理电子有限公司 | Temperature-sensing probe |
-
2014
- 2014-10-31 CN CN201420640040.8U patent/CN204165668U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353001A (en) * | 2016-10-08 | 2017-01-25 | 孝感华工高理电子有限公司 | Temperature-sensing probe |
| CN106353001B (en) * | 2016-10-08 | 2019-05-07 | 孝感华工高理电子有限公司 | A kind of temperature-sensing probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150218 Termination date: 20211031 |