CN209027689U - A kind of linear excellent thermistor of electrical characteristic - Google Patents
A kind of linear excellent thermistor of electrical characteristic Download PDFInfo
- Publication number
- CN209027689U CN209027689U CN201821450833.8U CN201821450833U CN209027689U CN 209027689 U CN209027689 U CN 209027689U CN 201821450833 U CN201821450833 U CN 201821450833U CN 209027689 U CN209027689 U CN 209027689U
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- China
- Prior art keywords
- electrode film
- metal electrode
- heat
- thermistor
- silicone grease
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- 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.)
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Abstract
The utility model relates to thermistor technology fields, more particularly to a kind of linear excellent thermistor of electrical characteristic, including insulation crust, one end of the insulation crust is fixed, and there are two external pins, the external pin is electrically connected with metal electrode film, the inner surface of the insulation crust is covered with one layer of equal thermosphere, the equal thermosphere plays the role of uniform heat conduction, the surface full-filling of the equal thermosphere has one layer of heat-conducting silicone grease, the heat-conducting silicone grease has good thermal coefficient and can solidify stickup, the inside of the heat-conducting silicone grease is fixed with resistive element, the resistive element includes coating, metal electrode film, resistance ferritic and conductive sheet, the metal electrode film surface that the utility model passes through setting is in cellular, i.e. roughness is larger, coating is firmly attached to metal electrode film surface easily, so that metal electrode film preferably with plating Layer carries out heat transfer, while thermosphere and heat-conducting silicone grease has good heating conduction, guarantees the raising of the temperature measurement accuracy of thermistor.
Description
Technical field
The utility model relates to thermistor technology fields, and in particular to a kind of linear excellent temperature-sensitive electricity of electrical characteristic
Resistance.
Background technique
Thermistor corresponding with the variation of temperature the variation of resistance can occur, and have good sensitivity, accurate
Degree and stability, therefore have become common sensor in the application fields such as temperature measurement, compensation and control.
The resistance of conventional thermistor at a normal temperature can maintain extremely low value, and circuit or battery is enable normally to transport
Make, still, when circuit or battery occur overcurrent or cross high temperature, resistance value is understood moment and be improved to high resistance shape
State, the electric current for causing it to maintain reduce rapidly, and are unable to satisfy the normal use of high current.
Utility model content
To solve the above problems, the utility model provides a kind of linear excellent thermistor of electrical characteristic, pass through setting
Metal electrode film surface be in cellular, i.e. roughness is larger, and coating is firmly attached to metal electrode film surface easily so that
Metal electrode film preferably carries out heat transfer with coating, while thermosphere and heat-conducting silicone grease has good heating conduction, guarantees
The raising of the temperature measurement accuracy of thermistor.
A kind of linear excellent thermistor of electrical characteristic, including insulation crust, one end of the insulation crust are fixed with
Two external pins, the external pin are electrically connected with metal electrode film, and the inner surface of the insulation crust is covered with one layer
Thermosphere, the surface full-filling of the equal thermosphere have one layer of heat-conducting silicone grease, and the inside of the heat-conducting silicone grease is fixed with resistive element, described
The outer surface of resistive element is provided with heat-transfer surface, and the resistive element includes coating, metal electrode film, resistance ferritic and leads
Electric piece, the surface of the metal electrode film are in cellular.
Preferably, the equal thermosphere is made of metal.
Preferably, the rigidity of the equal thermosphere is higher than the rigidity of insulation crust.
Preferably, the shape of the heat-transfer surface is waveform, and is in close contact with the heat-conducting silicone grease.
Preferably, the resistive element according to the metal electrode film, the conductive sheet, the resistance ferritic, described lead
The sequence of electric piece and metal electrode film composition, and the metal electrode film is electroplate with one layer of coating.
Preferably, the conductive sheet and the resistance ferritic and the metal electrode film are in close contact, and the conductive sheet
Two-end thickness be gradually reduced.
The utility model has the beneficial effects that the metal electrode film surface for passing through setting is in cellular, i.e. roughness is larger, plating
Layer is firmly attached to metal electrode film surface easily, so that metal electrode film preferably carries out heat transfer with coating, while
Thermosphere and heat-conducting silicone grease have good heating conduction, guarantee the raising of the temperature measurement accuracy of thermistor, meanwhile, thermally conductive table
The shape in face is waveform, and is in close contact with heat-conducting silicone grease, and the contact area of heat-transfer surface is big, and efficiency is good to carry out hot biography
It passs.
Detailed description of the invention
Fig. 1 is a kind of overall schematic of the linear excellent thermistor of electrical characteristic of the utility model.
Fig. 2 is a kind of schematic internal view of the linear excellent thermistor of electrical characteristic of the utility model.
Fig. 3 is a kind of resistive element partial schematic diagram of the linear excellent thermistor of electrical characteristic of the utility model.
In figure: 1- insulation crust；2- external pin；The equal thermosphere of 3-；4- heat-conducting silicone grease；5- heat-transfer surface；6- resistance member
Part；7- coating；8- metal electrode film；9- resistance ferritic；10- conductive sheet.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1-Figure 3, the linear excellent thermistor of a kind of electrical characteristic, including insulation crust 1, outside the insulation
One end of shell 1 is fixed there are two external pin 2, and the external pin 2 is electrically connected with metal electrode film 8, the insulation crust 1
Inner surface is covered with one layer of equal thermosphere 3, and the equal thermosphere 3 plays the role of uniform heat conduction, and the surface full-filling of the equal thermosphere 3 has
One layer of heat-conducting silicone grease 4, the heat-conducting silicone grease 4 have good thermal coefficient and can solidify stickup, the heat-conducting silicone grease 4 it is interior
Portion is fixed with resistive element 6, and the outer surface of the resistive element 6 is provided with heat-transfer surface 5, and the resistive element 6 includes plating
Layer 7, metal electrode film 8, resistance ferritic 9 and conductive sheet 10, the surface of the metal electrode film 8 are in cellular, i.e., roughness compared with
Greatly, coating 7 is firmly attached to 8 surface of metal electrode film easily, so that metal electrode film 8 preferably carries out hot biography with coating 7
It leads, guarantees the good measurement accuracy of thermistor.
The equal thermosphere 3 is made of metal, such as the copper of steel, aluminium or good heat conductivity, and the rigidity of the equal thermosphere 3 is high
In the rigidity of insulation crust 1, can be used as the reinforcement of thermistor, the shape of the heat-transfer surface 5 is waveform, and with it is described
Heat-conducting silicone grease 4 is in close contact, and the contact area of the heat-transfer surface 5 is big, and efficiency carries out hot transmitting, the resistive element well
6 according to the metal electrode film 8, the conductive sheet 10, the resistance ferritic 9, the conductive sheet 10 and the metal electrode film 8
Sequence composition, and the metal electrode film 8 is electroplate with one layer of coating 7, plays the work for extending thermistor service life
With the conductive sheet 10 is in close contact with the resistance ferritic 9 and the metal electrode film 8, and the two of the conductive sheet 10
End thickness is gradually reduced.
Concrete operating principle: as shown in Figure 1-Figure 3, the utility model is by 8 surface of metal electrode film of setting in porous
Shape, i.e. roughness are larger, and coating 7 is firmly attached to 8 surface of metal electrode film easily so that metal electrode film 8 preferably with
Coating carries out heat transfer, while thermosphere 3 and heat-conducting silicone grease 4 has good heating conduction, guarantees that the temperature of thermistor is surveyed
The raising of accuracy of measurement, meanwhile, the shape of heat-transfer surface 5 is waveform, and is in close contact with heat-conducting silicone grease 4, heat-transfer surface 5
Contact area is big, and efficiency is good to carry out hot transmitting, and the utility model entirety heat-conducting area is big, and heat-resistant element not will receive sky
The erosion of gas or moisture, 8 surface of metal electrode film are covered with one layer of coating, extend the service life of thermistor, and this heat
Quick resistance has good durability and stability, and conductive sheet 10 can be by metal powder or conductivity ceramics powder constituent, electric conductivity
It can greatly promote, ensure that thermistor has better electrical characteristic.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement or improvement etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of linear excellent thermistor of electrical characteristic, it is characterised in that: including insulation crust, the one of the insulation crust
End is fixed there are two external pin, and the external pin is electrically connected with metal electrode film, the inner surface covering of the insulation crust
There is one layer of equal thermosphere, the surface full-filling of the equal thermosphere has one layer of heat-conducting silicone grease, and the inside of the heat-conducting silicone grease is fixed with resistance
Element, the outer surface of the resistive element are provided with heat-transfer surface, and the resistive element includes coating, metal electrode film, electricity
Ferritic and conductive sheet are hindered, the surface of the metal electrode film is in cellular.
2. a kind of linear excellent thermistor of electrical characteristic according to claim 1, it is characterised in that: the equal thermosphere
It is made of metal.
3. a kind of linear excellent thermistor of electrical characteristic according to claim 1, it is characterised in that: the equal thermosphere
Rigidity be higher than insulation crust rigidity.
4. a kind of linear excellent thermistor of electrical characteristic according to claim 1, it is characterised in that: the thermally conductive table
The shape in face is waveform, and is in close contact with the heat-conducting silicone grease.
5. a kind of linear excellent thermistor of electrical characteristic according to claim 1, it is characterised in that: the resistance member
Part is according to the metal electrode film, the conductive sheet, the resistance ferritic, the sequence of the conductive sheet and the metal electrode film
Composition, and the metal electrode film is electroplate with one layer of coating.
6. a kind of linear excellent thermistor of electrical characteristic according to claim 1, it is characterised in that: the conductive sheet
It is in close contact with the resistance ferritic and the metal electrode film, and the two-end thickness of the conductive sheet is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821450833.8U CN209027689U (en) | 2018-09-04 | 2018-09-04 | A kind of linear excellent thermistor of electrical characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821450833.8U CN209027689U (en) | 2018-09-04 | 2018-09-04 | A kind of linear excellent thermistor of electrical characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209027689U true CN209027689U (en) | 2019-06-25 |
Family
ID=66904335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821450833.8U Expired - Fee Related CN209027689U (en) | 2018-09-04 | 2018-09-04 | A kind of linear excellent thermistor of electrical characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209027689U (en) |
-
2018
- 2018-09-04 CN CN201821450833.8U patent/CN209027689U/en not_active Expired - Fee Related
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Legal Events
| 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: 20190625 Termination date: 20210904 |