CN204944694U - A kind of NTC temperature sensor - Google Patents
A kind of NTC temperature sensor Download PDFInfo
- Publication number
- CN204944694U CN204944694U CN201520701081.8U CN201520701081U CN204944694U CN 204944694 U CN204944694 U CN 204944694U CN 201520701081 U CN201520701081 U CN 201520701081U CN 204944694 U CN204944694 U CN 204944694U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- temperature sensor
- heat transfer
- cavity
- transfer piece
- 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.)
- Active
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
A kind of NTC temperature sensor, comprise heat transfer piece, thermistor, sleeve pipe, described heat transfer piece comprises spacing termination, lower end, spacing termination is provided with tensioning member, be provided with cavity in tensioning member, cavity internal fixtion is provided with thermistor, thermistor and cavity upper surface close contact; Described internal surface of sleeve pipe is evenly equipped with many root posts in the axial direction, every root post upper end stretches out that sleeve pipe is outer and extension elongation is identical, sleeve outer wall is provided with bumping post, shell is set with outside bumping post, be provided with spring in space between bumping post and shell lower surface, sleeve pipe makes column and spacing termination close contact by spring.A kind of NTC temperature sensor that the utility model provides, by arranging 3 root posts at internal surface of sleeve pipe, and with spring mating reaction, not only maintain heat transfer piece and the good annexation of sleeve pipe, also reduce the contact area of heat transfer piece and sleeve pipe, thus avoid thermal source loss, improve temperature measurement accuracy.
Description
Technical field
The utility model relates to a kind of sensor, particularly a kind of NTC temperature sensor.
Background technology
NTC thermistor is under certain measurement power, and resistance value rises along with temperature and declines rapidly.Utilize this characteristic, determine corresponding temperature by the resistance value measuring NTC thermistor, NTC temperature sensor is born thus.Because NTC temperature sensor is highly sensitive, fast response time, on the housed devices such as air-conditioning, refrigerator, water heater, the automotive electronics such as air conditioning for automobiles, engine and other field obtain general application.
The NTC thermistor of band lead-in wire is placed in heat transfer piece and is fixed by existing product usually, ensures that NTC thermistor contacts well with heat transfer piece.Then heat transfer piece is arranged on sleeve pipe, makes NTC thermistor and external insulation, because heat transfer piece external diameter is identical with casing inner diameter, heat transfer piece and sleeve pipe close contact, fastening.Can prevent plastic tube from coming off like this; protection, buffer action are played to NTC thermistor; but a problem can be brought: while thermal source is reached NTC thermistor by heat transfer piece simultaneously; due to heat transfer piece lower surface and sleeve pipe close contact; part of heat energy also can pass to sleeve pipe, cannot ensure that NTC temperature sensor actual response ambient temperature changes like this.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of NTC temperature sensor, and thermal source can be avoided to run off, thus ensures the change of NTC temperature sensor actual response ambient temperature.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of NTC temperature sensor, comprise heat transfer piece, thermistor, sleeve pipe, described heat transfer piece comprises spacing termination, lower end, spacing termination is provided with tensioning member, be provided with cavity in tensioning member, cavity internal fixtion is provided with thermistor, thermistor and cavity upper surface close contact; Described internal surface of sleeve pipe is evenly equipped with many root posts in the axial direction, every root post upper end stretches out that sleeve pipe is outer and extension elongation is identical, sleeve outer wall is provided with bumping post, shell is set with outside bumping post, be provided with spring in space between bumping post and shell lower surface, sleeve pipe makes column and spacing termination close contact by spring.
Described cavity is shoulder hole, and cavity top is most advanced and sophisticated tapered tail upward.
Outer wall and every root post outside surface of described tensioning member are tangent.
Described column is 3.
Described heat transfer piece is metallic aluminium.
Described sleeve pipe and column are insulating material.
A kind of NTC temperature sensor that the utility model provides; by arranging 3 root posts at internal surface of sleeve pipe; and with spring mating reaction; not only maintain heat transfer piece and the good annexation of sleeve pipe; play NTC thermistor protection, buffer action; also reduce the contact area of heat transfer piece and sleeve pipe, thus reduce thermal source loss, improve accuracy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cut-open view of the present utility model.
Fig. 3 is the structural representation of the utility model sleeve pipe.
In figure: heat transfer piece 1, thermistor 2, sleeve pipe 3, spacing termination 4, tensioning member 5, cavity 6, column 7, bumping post 8, shell 9, spring 10.
Embodiment
A kind of NTC temperature sensor, comprise heat transfer piece 1, thermistor 2, sleeve pipe 3, described heat transfer piece 1 comprises spacing termination 4, lower end, spacing termination 4 is provided with tensioning member 5, be provided with cavity 6 in tensioning member 5, cavity 6 internal fixtion is provided with thermistor 2, thermistor 2 and cavity 6 upper surface close contact; Described sleeve pipe 3 inwall is evenly equipped with many root posts 7 in the axial direction, every root post 7 upper end stretches out that sleeve pipe 3 is outer and extension elongation is identical, sleeve pipe 3 outer wall is provided with bumping post 8, shell 9 is set with outside bumping post 8, spring 10 is provided with in space between bumping post 8 and shell 9 lower surface, spring 10 is in compressive state, and to the acting force that bumping post 8 applies upwards, makes column 7 and spacing termination 4 keep close contact state.
Described cavity 6 is shoulder hole, and cavity 6 top is most advanced and sophisticated tapered tail upward.Structure thus, corresponding with thermistor 2 upper surface shape, ensure maximized contact area.
Outer wall and every root post 7 outside surface of described tensioning member 5 are tangent.Structure thus, can make tensioning member 5 and column 7 sidewall carry out line and be connected, and for original face coordinates, reduces the thermal source loss that heat trnasfer brings further.
Described column 7 is 3, ensure that sleeve pipe 3 is stable thus on the one hand, is firmly connected with heat transfer piece 1, heat transfer piece 1 and sleeve pipe 3 end contact can be made on the other hand to minimize, reduce the thermal source loss that heat trnasfer brings.
Described heat transfer piece 1 is metallic aluminium.Thermal conductivity is good, rapidly thermal source can be passed to thermistor 2, reduces thermal loss.
Described sleeve pipe 3 and column 7 are insulating material, can be plastics, glass fibre etc.
Claims (6)
1. a NTC temperature sensor, it is characterized in that: comprise heat transfer piece (1), thermistor (2), sleeve pipe (3), described heat transfer piece (1) comprises spacing termination (4), spacing termination (4) lower end is provided with tensioning member (5), cavity (6) is provided with in tensioning member (5), cavity (6) internal fixtion is provided with thermistor (2), thermistor (2) and cavity (6) upper surface close contact; Described sleeve pipe (3) inwall is evenly equipped with many root posts (7) in the axial direction, sleeve pipe (3) is stretched out and extension elongation is identical outward in every root post (7) upper end, sleeve pipe (3) outer wall is provided with bumping post (8), shell (9) is set with outside bumping post (8), be provided with spring (10) in space between bumping post (8) and shell (9) lower surface, sleeve pipe (3) makes column (7) and spacing termination (4) close contact by spring (10).
2. a kind of NTC temperature sensor according to claim 1, is characterized in that: described cavity (6) is shoulder hole, and cavity (6) top is most advanced and sophisticated tapered tail upward.
3. a kind of NTC temperature sensor according to claim 1, is characterized in that: outer wall and every root post (7) outside surface of described tensioning member (5) are tangent.
4. a kind of NTC temperature sensor according to claim 1, is characterized in that: described column (7) is 3.
5. a kind of NTC temperature sensor according to claim 1, is characterized in that: described heat transfer piece (1) is metallic aluminium.
6. a kind of NTC temperature sensor according to claim 1, is characterized in that: described sleeve pipe (3) and column (7) are insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701081.8U CN204944694U (en) | 2015-09-11 | 2015-09-11 | A kind of NTC temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701081.8U CN204944694U (en) | 2015-09-11 | 2015-09-11 | A kind of NTC temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204944694U true CN204944694U (en) | 2016-01-06 |
Family
ID=55012110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520701081.8U Active CN204944694U (en) | 2015-09-11 | 2015-09-11 | A kind of NTC temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204944694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033562A (en) * | 2020-08-12 | 2020-12-04 | 孝感华工高理电子有限公司 | Battery core temperature sensor and battery |
-
2015
- 2015-09-11 CN CN201520701081.8U patent/CN204944694U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033562A (en) * | 2020-08-12 | 2020-12-04 | 孝感华工高理电子有限公司 | Battery core temperature sensor and battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204944694U (en) | A kind of NTC temperature sensor | |
| CN105788962A (en) | Sensor fixedly arranging structure | |
| CN204313962U (en) | Blackbody radiation source | |
| CN203606037U (en) | Temperature sensor | |
| CN209043467U (en) | Pyrostat | |
| CN203643043U (en) | Probe temperature sensor | |
| CN203242568U (en) | Overheat limiter | |
| CN107084799B (en) | A kind of thermocouple structure that can be voluntarily straightened | |
| CN205352569U (en) | Temperature sensor of face contact | |
| CN205697127U (en) | A kind of electric cooker | |
| CN202734980U (en) | Thermocouple supporting device | |
| CN105651414B (en) | A kind of temperature sensor enhancing tensile strength | |
| CN203643046U (en) | Highly sensitive temperature sensor for soya-bean milk machine | |
| CN202938927U (en) | Water temperature sensor | |
| CN102889943A (en) | NTC (Negative Temperature Coefficient) temperature sensor | |
| CN209400094U (en) | A kind of temperature sensor | |
| CN207540679U (en) | A kind of commercial car environment temperature sensor | |
| CN206504804U (en) | A kind of NTC temperature sensors | |
| CN206132261U (en) | Temperature sensor and bread machine | |
| CN207036264U (en) | A kind of blackbody radiation source | |
| CN206235414U (en) | A kind of electric cooker bottom master control temperature sensor | |
| CN205536532U (en) | Air energy water heater | |
| CN205981464U (en) | Novel temperature tube temperature sensing structure | |
| CN204165667U (en) | Quick sensing is high temperature resistant temperature-sensing probe | |
| CN206006926U (en) | A kind of electric kettle for improving temperature-sensing probe fixed structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |