CN102889943A - NTC (Negative Temperature Coefficient) temperature sensor - Google Patents
NTC (Negative Temperature Coefficient) temperature sensor Download PDFInfo
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- CN102889943A CN102889943A CN2011101997894A CN201110199789A CN102889943A CN 102889943 A CN102889943 A CN 102889943A CN 2011101997894 A CN2011101997894 A CN 2011101997894A CN 201110199789 A CN201110199789 A CN 201110199789A CN 102889943 A CN102889943 A CN 102889943A
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- ntc
- temperature sensor
- guide rod
- ntc thermistor
- shell
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Abstract
The invention discloses an NTC (Negative Temperature Coefficient) temperature sensor. The NTC temperature sensor comprises a housing and an NTC thermistor arranged in the housing; the NTC temperature sensor further comprises a limiting device; the limiting device comprises a protection cover, a spring, a guide rod and a plug; the protection cover is arranged at the top of the housing, and formed to be a hollow chamber respect to the top of the housing; the NTC thermistor is arranged in the hollow chamber and arranged at the top of the housing; the guide rod is arranged in the housing; the plug is arranged at one end of the guide rod; and the spring is arranged between the other end of the guide rod and the protection cover. The NTC temperature sensor disclosed by the invention is precise in temperature measurement, good in using effect, simple in structure and nice in appearance.
Description
Technical field
The present invention relates to a kind of sensor, be specifically related to a kind of NTC temperature sensor.
Background technology
NTC themistor has high sensitivity and lower price, so suitable to temperature sensor especially, in-55 ℃-+300 ℃ temperature range,, be widely used in fields such as industrial automation, instrument and meter, automotive electronics, medical electronics, household electrical appliance, space flight and aviation, computing machines as the temperature sensor of core parts-abbreviation NTC temperature sensor with NTC themistor or NTC thermistor chip.And the structure of existing product mostly is greatly the NTC thermistor and is fixed on metal shell the inside, but can not guarantee that thermistor all is close to cover top portion, also just can not guarantee accurate temperature measurement.
Need a kind of NTC temperature sensor for this reason, simple in structure, guarantee that thermistor is close to cover top portion, thereby guarantee accurate temperature measurement.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of NTC temperature sensor, simple in structure, guarantee that thermistor is close to cover top portion, thereby guarantee accurate temperature measurement.
For achieving the above object; technical scheme of the present invention is as follows: a kind of NTC temperature sensor; comprise shell; the NTC thermistor; described NTC thermistor is arranged in the described shell; also be provided with a stop means; described stop means comprises protective cover; spring; guide rod and stopper; described protective cover is arranged on described cover top portion; and form a cavity with described cover top portion; described NTC thermistor is arranged in the described cavity, and described NTC thermistor is arranged on described cover top portion, and described guide rod is arranged in the described shell; one end of described guide rod is provided with described stopper, is provided with described spring between the other end of described guide rod and the described protective cover.
Preferably, be provided with inserts in the described cavity.
Preferably, described inserts is heat conductive silica gel or heat conductive rubber.
Preferably, the resistance pin of described NTC thermistor is provided with sleeve pipe, and described resistance pin is connected with wire, and described resistance pin and described connecting position of wires are provided with terminal.
Preferably, described resistance pin is arranged in the protection tube, and described wire is arranged in the conduit.
Adopt the beneficial effect of the technical program to be: thermometric is accurate, and result of use is good, and is simultaneously simple in structure, good looking appearance.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention technology, the below will do to introduce simply to the accompanying drawing of required use in the embodiment technical description, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is complete section front view of the present invention.
Fig. 2 is stereographic map of the present invention.
Numeral and the represented corresponding component title of letter among the figure:
1. shell 2. thermistors 3. protective covers 4. springs 5. guide rods 6. stoppers 7. guide rod stoppers 8. sleeve pipes
9. resistance pin 10. inserts 11. terminals 12. protection tubes 13. conduits 14. wires.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment 1
As shown in Figure 1, a kind of embodiment of the present invention, a kind of NTC temperature sensor, comprise shell 1, NTC thermistor 2, NTC thermistor 2 is arranged in the shell 1, also is provided with simultaneously a stop means, and stop means is installed in the enclosure, play the effect that NTC thermistor 2 is close to cover top portion, guarantee the temperature measurement accuracy of NTC thermistor.Stop means comprises protective cover 3; spring 4; guide rod 5 and stopper 6; protective cover 3 is arranged on shell 1 top; and form a cavity with shell 1 top; NTC thermistor 2 is arranged in the described cavity; and NTC thermistor 2 is arranged on shell 1 top; make NTC thermistor 2 be close to shell 1 top; guide rod 5 is arranged in the shell 1; one end of guide rod 5 is provided with stopper 6; be provided with described spring 4 between the other end of guide rod 5 and the protective cover 3; guide rod 5 is fixed in the shell 1 by the stopper 6 of one end; between its other end and protective cover 3, be connected by spring; make simultaneously protective cover 3 can be close to shell 1 top, thereby guarantee that the NTC thermistor can be close to shell 1 top.Be provided with guide rod stopper 7 in the base apertures of guide rod 5, guide rod stopper 7 can play certain sealing function, also plays certain supporting role simultaneously.In order to make NTC thermistor 2 can better be close to the top of shell 1; in the cavity of shell 1 top and protective cover 3 formation, inserts is set; inserts is the heat conductive silica gel of good heat conductivity; the NTC thermistor is sealed up for safekeeping in cavity, made again the NTC thermistor be close to shell 1 top simultaneously.The resistance pin 9 of NTC thermistor 2 is provided with sleeve pipe 8; sleeve pipe 8 is exotic material Teflon heat-shrink tube; resistance pin 9 is wrapped in the covering of insulation high-temperature-resistant; resistance pin 9 is connected with wire 14; and resistance pin 9 is provided with terminal 11 with wire 14 junctions; terminal 11 guarantees that resistance pin 9 is connected reliably with the junction of wire 14; resistance pin 9 is arranged in the protection tube 12; described wire 14 is arranged in the conduit 13, protection tube 12 and the fiberglass tubes that conduit 13 is good insulating, thermotolerance is strong, corrosion resistivity good, physical strength is high.
Embodiment 2
All the other are identical with embodiment 1, and difference is, in the cavity of shell 1 top and protective cover 3 formation inserts is set, and inserts is the heat conductive rubber of good heat conductivity.
The present invention is close in the cover top portion NTC thermistor by install a stop means additional in sensor, guarantees the temperature measurement accuracy of NTC thermistor.Adopt the beneficial effect of the technical program to be: thermometric is accurate, and result of use is good, and is simultaneously simple in structure, good looking appearance.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. NTC temperature sensor; comprise shell; the NTC thermistor; described NTC thermistor is arranged in the described shell; it is characterized in that; also be provided with a stop means; described stop means comprises protective cover; spring; guide rod and stopper; described protective cover is arranged on described cover top portion; and form a cavity with described cover top portion; described NTC thermistor is arranged in the described cavity, and described NTC thermistor is arranged on described cover top portion, and described guide rod is arranged in the described shell; one end of described guide rod is provided with described stopper, is provided with described spring between the other end of described guide rod and the described protective cover.
2. a kind of NTC temperature sensor according to claim 1 is characterized in that, is provided with inserts in the described cavity.
3. a kind of NTC temperature sensor according to claim 2 is characterized in that, described inserts is heat conductive silica gel or heat conductive rubber.
4. a kind of NTC temperature sensor according to claim 1 and 2 is characterized in that, the resistance pin of described NTC thermistor is provided with sleeve pipe, and described resistance pin is connected with wire, and described resistance pin and described connecting position of wires are provided with terminal.
5. a kind of NTC temperature sensor according to claim 4 is characterized in that, described resistance pin is arranged in the protection tube, and described wire is arranged in the conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101997894A CN102889943A (en) | 2011-07-18 | 2011-07-18 | NTC (Negative Temperature Coefficient) temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101997894A CN102889943A (en) | 2011-07-18 | 2011-07-18 | NTC (Negative Temperature Coefficient) temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102889943A true CN102889943A (en) | 2013-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101997894A Pending CN102889943A (en) | 2011-07-18 | 2011-07-18 | NTC (Negative Temperature Coefficient) temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889943A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552708A (en) * | 2014-06-24 | 2015-04-29 | 深圳青铜剑电力电子科技有限公司 | Mold for producing heat-conduction silica gel sheet and use method of mold |
| CN104864936A (en) * | 2015-05-14 | 2015-08-26 | 上海尼晶电子科技有限公司 | Low-temperature oil level alarm with negative temperature coefficient thermistor |
| CN117629429A (en) * | 2023-11-30 | 2024-03-01 | 北京锦驰泰达科技有限公司 | Intelligent temperature measuring terminal for power distribution |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207484U (en) * | 1986-10-23 | 1987-07-29 | 青岛市公安科学技术研究所 | Fire alarm with fuse stater |
| DE3827254A1 (en) * | 1988-08-11 | 1990-02-15 | Vdo Schindling | Temperature switch |
| JPH08184507A (en) * | 1994-12-28 | 1996-07-16 | Nippon Thermostat Kk | Temperature sensor |
| KR100734788B1 (en) * | 2005-11-25 | 2007-07-04 | 주식회사 제임스텍 | Ntc thermistor temperature sensor and manufacturing method thereof |
| CN201355281Y (en) * | 2009-01-19 | 2009-12-02 | 晶辉科技（深圳）有限公司 | Fixing device of NTC |
-
2011
- 2011-07-18 CN CN2011101997894A patent/CN102889943A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207484U (en) * | 1986-10-23 | 1987-07-29 | 青岛市公安科学技术研究所 | Fire alarm with fuse stater |
| DE3827254A1 (en) * | 1988-08-11 | 1990-02-15 | Vdo Schindling | Temperature switch |
| JPH08184507A (en) * | 1994-12-28 | 1996-07-16 | Nippon Thermostat Kk | Temperature sensor |
| KR100734788B1 (en) * | 2005-11-25 | 2007-07-04 | 주식회사 제임스텍 | Ntc thermistor temperature sensor and manufacturing method thereof |
| CN201355281Y (en) * | 2009-01-19 | 2009-12-02 | 晶辉科技（深圳）有限公司 | Fixing device of NTC |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552708A (en) * | 2014-06-24 | 2015-04-29 | 深圳青铜剑电力电子科技有限公司 | Mold for producing heat-conduction silica gel sheet and use method of mold |
| CN104864936A (en) * | 2015-05-14 | 2015-08-26 | 上海尼晶电子科技有限公司 | Low-temperature oil level alarm with negative temperature coefficient thermistor |
| CN117629429A (en) * | 2023-11-30 | 2024-03-01 | 北京锦驰泰达科技有限公司 | Intelligent temperature measuring terminal for power distribution |
| CN117629429B (en) * | 2023-11-30 | 2024-05-03 | 北京锦驰泰达科技有限公司 | Intelligent temperature measuring terminal for power distribution |
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Application publication date: 20130123 |