CN206412159U - A kind of efficient heat transfer PTC thermistor - Google Patents
A kind of efficient heat transfer PTC thermistor Download PDFInfo
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- CN206412159U CN206412159U CN201720084583.XU CN201720084583U CN206412159U CN 206412159 U CN206412159 U CN 206412159U CN 201720084583 U CN201720084583 U CN 201720084583U CN 206412159 U CN206412159 U CN 206412159U
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- thermistor
- activated carbon
- carbon nanotube
- heat
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Abstract
The utility model discloses a kind of efficient heat transfer PTC thermistor, including thermistor body, thermal source element fixed cover is installed at the top of the thermistor body, the thermistor body is by activated carbon nanotube layer, heat sensitive chip, support spring, thermistor outer wall, cushion chamber, thermal insulation layer, flame-retardant layer, heat-conducting layer and reinforcing fiber layer composition, the top inner wall of the thermistor outer wall is provided with the reinforcing fiber layer, the bottom of the reinforcing fiber layer is provided with the heat-conducting layer, the bottom of the heat-conducting layer is provided with the flame-retardant layer, the activated carbon nanotube layer is installed at the bottom centre of the flame-retardant layer, the activated carbon nanotube layer is internally provided with heat sensitive chip, the both sides of the activated carbon nanotube layer are mounted on the thermal insulation layer, the bottom of the activated carbon nanotube layer is provided with the cushion chamber, the PTC thermistor, heat transference efficiency is high, improve the security of thermistor.
Description
Technical field
The utility model is related to thermistor technology field, specially a kind of efficient heat transfer PTC thermistor.
Background technology
Thermal resistor is a class of sensing element, is divided into positive temperature coefficient thermistor according to temperature coefficient difference
And negative temperature coefficient thermistor (NTC) (PTC).The typical feature of thermal resistor is temperature sensitive, different temperature
Under show different resistance values.Positive temperature coefficient thermistor (PTC) resistance value when temperature is higher is bigger, negative temperature system
Number thermal resistor (NTC) resistance value when temperature is higher is lower, and they belong to semiconductor devices.PTC is Positive
Temperature Coefficient abbreviation, means positive temperature coefficient, refers to positive temperature coefficient very big semiconductor material
Material or component.The PTC that generally we mention refers to semistor, abbreviation PTC thermistor.PTC temperature-sensitives electricity
Resistance is the semiconductor resistor that a kind of typical case has temperature sensitivity, during more than certain temperature (Curie temperature), its resistance value
With rise the increasing in step evolution of temperature.
Existing PTC thermistor heat transfer efficiency and safety in utilization be not high, it is impossible to which accurate sensing needs the element perceived
Temperature, is easily disturbed by surrounding environment.
Utility model content
The purpose of this utility model is to provide a kind of efficient heat transfer PTC thermistor, 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 efficient heat transfer PTC thermistor, bag
Include and thermal source element fixed cover is installed at the top of thermistor body, the thermistor body, the thermistor body
Bottom is provided with the first pin, and the side of first pin is provided with second pin, and the thermistor body is by activated carbon
Nanotube layer, heat sensitive chip, support spring, thermistor outer wall, cushion chamber, thermal insulation layer, flame-retardant layer, heat-conducting layer and reinforcing fiber
Layer composition, the top inner wall of the thermistor outer wall is provided with the reinforcing fiber layer, the bottom peace of the reinforcing fiber layer
Equipped with the heat-conducting layer, the bottom of the heat-conducting layer, which is provided with the flame-retardant layer, the bottom centre of the flame-retardant layer, to be provided with
The activated carbon nanotube layer, the activated carbon nanotube layer is internally provided with heat sensitive chip, the activated carbon nanotube layer
Both sides be mounted on the thermal insulation layer, the bottom of the activated carbon nanotube layer is provided with the cushion chamber, the activated carbon
Nanotube layer is connected by the support spring with the bottom interior wall of the thermistor outer wall, and the support spring is arranged on institute
The inside of cushion chamber is stated, the heat sensitive chip is connected with first pin and the second pin respectively by connecting line.
Further, the activated carbon nanotube layer and thermistor outer wall with support spring by being welded and fixed.
Further, the heat-conducting layer is a kind of nm-class silicon carbide material component.
Further, the thermal insulation layer is a kind of super glass wool material members.
Further, the thermistor body with thermal source element fixed cover by being welded and fixed.
Further, the heat sensitive chip is that one kind has BaTiO ceramic materials.
Compared with prior art, the beneficial effects of the utility model are：Activated carbon in the outer wrap of heat sensitive chip to receive
Mitron layer, effectively can prevent heat sensitive chip from aoxidizing, can effectively extend the service life of the thermistor, by thermal source element
The top of thermistor body is fixed on by thermal source element fixed cover, heat-conducting layer is made of nm-class silicon carbide material, nanometer
Carbofrax material has high rigidity, high-wearing feature, good self-lubricating, high thermoconductivity, low thermal coefficient of expansion and elevated temperature strength
Big the features such as, heat transfer efficiency is high, and the setting of flame-retardant layer can lift the security of the thermistor, and thermal insulation layer is arranged on temperature-sensitive core
The both sides of piece, thermal insulation layer is made of superfine glass cotton material, and superfine glass cotton material has good chemical stability, constitution
Gently, thermal conductivity factor is low, heat insulation, it is corrosion-resistant and heat-resist the characteristics of, effectively can prevent environment temperature from being made to heat sensitive chip
Into influence, it can accurately sense the component temperature for needing to perceive, not disturbed by surrounding environment.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is whole interior structural representation of the present utility model.
In reference：The pins of 1- first；2- second pins；3- thermistor bodies；4- thermal source element fixed covers；5- lives
Property carbon nanotube layer；6- heat sensitive chips；7- support springs；8- thermistor outer walls；9- cushion chambers；10- thermal insulation layers；11- is fire-retardant
Layer；12- heat-conducting layers；13- reinforcing fibers layer.
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 kind of an efficient heat transfer PTC thermistor, including thermistor body 3, heat
The top of quick resistor main body 3 is provided with thermal source element fixed cover 4, and the bottom of thermistor body 3 is provided with the first pin 1, the
The side of one pin 1 is provided with second pin 2, and thermistor body 3 is by activated carbon nanotube layer 5, heat sensitive chip 6, support bullet
Spring 7, thermistor outer wall 8, cushion chamber 9, thermal insulation layer 10, flame-retardant layer 11, heat-conducting layer 12 and reinforcing fiber layer 13 are constituted, temperature-sensitive electricity
The top inner wall of resistance outer wall 8 is provided with reinforcing fiber layer 13, and the bottom of reinforcing fiber layer 13 is provided with heat-conducting layer 12, heat-conducting layer 12
Bottom be provided with flame-retardant layer 11, the bottom centre of flame-retardant layer 11 activated carbon nanotube layer 5 be installed, activated carbon nanotube layer
5 are internally provided with heat sensitive chip 6, and the both sides of activated carbon nanotube layer 5 are mounted on thermal insulation layer 10, activated carbon nanotube layer 5
Bottom cushion chamber 9 is installed, activated carbon nanotube layer 5 passes through support spring 7 and the bottom interior wall of thermistor outer wall 8 connects
Connect, support spring 7 be arranged on cushion chamber 9 inside, heat sensitive chip 6 by connecting line respectively with the first pin 1 and second pin 2
Connection.
Further, the activated carbon nanotube layer 5 and thermistor outer wall 8 with support spring 7 by being welded and fixed,
Ensure the stability of connection.
Further, the heat-conducting layer 12 is a kind of nm-class silicon carbide material component, and nm-class silicon carbide material has high hard
The features such as degree, high-wearing feature, good self-lubricating, high thermoconductivity, low thermal coefficient of expansion and big elevated temperature strength.
Further, the thermal insulation layer 10 is a kind of super glass wool material members, and superfine glass cotton material has good
Chemical stability, constitution is light, thermal conductivity factor is low, heat insulation, it is corrosion-resistant and heat-resist the characteristics of.
Further, the thermistor body 3 with thermal source element fixed cover 4 by being welded and fixed, it is ensured that connection it is steady
It is qualitative.
Further, the heat sensitive chip 6 is that one kind has BaTiO3Ceramic material, BaTiO3There is ceramic material temperature to get over
Height, the characteristics of resistance is bigger.
Operation principle：The outer wrap of heat sensitive chip 6 activated carbon nanotube layer 5, can effectively prevent heat sensitive chip 6
Oxidation, can effectively extend the service life of the thermistor, thermal source element is fixed on into temperature-sensitive by thermal source element fixed cover 4
The top of resistor main body 3, heat-conducting layer 12 is made of nm-class silicon carbide material, and nm-class silicon carbide material has high rigidity, height resistance to
The features such as mill property, good self-lubricating, high thermoconductivity, low thermal coefficient of expansion and big elevated temperature strength, heat transfer efficiency is high, flame-retardant layer
11 setting can lift the security of the thermistor, and thermal insulation layer 10 is arranged on the both sides of heat sensitive chip 6, and thermal insulation layer 10 is used
Superfine glass cotton material is made, superfine glass cotton material has that good chemical stability, constitution are light, thermal conductivity factor is low, it is hot absolutely
Edge, it is corrosion-resistant and heat-resist the characteristics of, can effectively prevent environment temperature from being impacted to heat sensitive chip 6, can accurately sense
The component temperature perceived is needed, is not disturbed by surrounding environment.
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 (6)
1. a kind of efficient heat transfer PTC thermistor, including thermistor body (3), it is characterised in that：The thermistor body
(3) thermal source element fixed cover (4) is installed, the bottom of the thermistor body (3) is provided with the first pin (1) at the top of,
The side of first pin (1) is provided with second pin (2), and the thermistor body (3) is by activated carbon nanotube layer
(5), heat sensitive chip (6), support spring (7), thermistor outer wall (8), cushion chamber (9), thermal insulation layer (10), flame-retardant layer (11),
Heat-conducting layer (12) and reinforcing fiber layer (13) composition, the top inner wall of the thermistor outer wall (8) are provided with the enhancing fibre
Layer (13) is tieed up, the bottom of the reinforcing fiber layer (13) is provided with the heat-conducting layer (12), the bottom peace of the heat-conducting layer (12)
Equipped with the flame-retardant layer (11), the activated carbon nanotube layer (5) is installed at the bottom centre of the flame-retardant layer (11), it is described
Activated carbon nanotube layer (5) is internally provided with heat sensitive chip (6), and the both sides of the activated carbon nanotube layer (5) are mounted on
The thermal insulation layer (10), the bottom of the activated carbon nanotube layer (5) is provided with the cushion chamber (9), the activated carbon nanometer
Tube layer (5) is connected by the support spring (7) with the bottom interior wall of the thermistor outer wall (8), the support spring (7)
Inside installed in the cushion chamber (9), the heat sensitive chip (6) by connecting line respectively with first pin (1) and institute
State second pin (2) connection.
2. a kind of efficient heat transfer PTC thermistor according to claim 1, it is characterised in that：The active carbon nanotube
Layer (5) and thermistor outer wall (8) are with support spring (7) by being welded and fixed.
3. a kind of efficient heat transfer PTC thermistor according to claim 1, it is characterised in that：The heat-conducting layer (12) is
A kind of nm-class silicon carbide material component.
4. a kind of efficient heat transfer PTC thermistor according to claim 1, it is characterised in that：The thermal insulation layer (10) is
A kind of super glass wool material members.
5. a kind of efficient heat transfer PTC thermistor according to claim 1, it is characterised in that：The thermistor body
(3) with thermal source element fixed cover (4) by being welded and fixed.
6. a kind of efficient heat transfer PTC thermistor according to claim 1, it is characterised in that：The heat sensitive chip (6) is
One kind has BaTiO3Ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720084583.XU CN206412159U (en) | 2017-01-21 | 2017-01-21 | A kind of efficient heat transfer PTC thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720084583.XU CN206412159U (en) | 2017-01-21 | 2017-01-21 | A kind of efficient heat transfer PTC thermistor |
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| Publication Number | Publication Date |
|---|---|
| CN206412159U true CN206412159U (en) | 2017-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720084583.XU Expired - Fee Related CN206412159U (en) | 2017-01-21 | 2017-01-21 | A kind of efficient heat transfer PTC thermistor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115087258A (en) * | 2021-03-12 | 2022-09-20 | 斯玛特电子公司 | Circuit protection device |
-
2017
- 2017-01-21 CN CN201720084583.XU patent/CN206412159U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115087258A (en) * | 2021-03-12 | 2022-09-20 | 斯玛特电子公司 | Circuit protection device |
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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: 20170815 Termination date: 20180121 |