CN206410798U - High molecular ptc temperature sensor - Google Patents
High molecular ptc temperature sensor Download PDFInfo
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- CN206410798U CN206410798U CN201720064831.4U CN201720064831U CN206410798U CN 206410798 U CN206410798 U CN 206410798U CN 201720064831 U CN201720064831 U CN 201720064831U CN 206410798 U CN206410798 U CN 206410798U
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Abstract
The utility model is related to high molecular PTC temperature sensor, a kind of sticked with high polymer PTC on surface (positive temperature coefficient) temperature sensor using conducting high polymers thing composite as main material, it is different from traditional ceramics PTC temperature sensors, using the surface mount formats being easily installed, it is easily installed；Using core of the conductive polymer composites layer with resistance positive temperature coefficient effect as high molecular PTC temperature sensor.It is low that the cost of product compares ceramic-like PTC temperature sensors, and processing is more convenient, is more suitable for the requirement of miniaturized device.
Description
Technical field
The utility model is related to a high molecular PTC temperature sensor, belong to using conducting high polymers thing composite as
The electronic component of main material, more particularly, to a kind of surface labeling type polymer PTC temperature sensor.
Background technology
In existing disclosed technology, PTC temperature sensors are generally ceramic base.
Polymer electric conductive polymer with the conducting polymer for disperseing conductive filler composition in the polymer and thus
The electronic component with positive temperature coefficient (PTC) feature prepared, is widely used in circuit protection.
Such as：Application number 201010242175.5 discloses a kind of with positive temperature coefficient, high PTC intensity macromolecule electricity heating
Composite, by weight percentage:(1) 35%-75% high density polyethylene (HDPE)s, low density polyethylene (LDPE), ethene-vinyl acetate copolymerization
Thing, ethylene-ethyl acrylate copolymer, nitrile rubber, epoxy resin, Kynoar one or more mixture;(2)15%-
55% carbon black, CNT;(3) inorganic fillings 3%-12%;(4) 0.02%-0.1% antioxidants, by said mixture using close
Refining or twin-screw machine-shaping, crosslinking by radiation, can be prepared by high PTC intensity temp auto-controlled conductive polymer heating composite.
The composite is due to good PTC intensity, and leakage current is very small, good security and heat endurance, in electric heating side
Face, Automatic Control Temperature Heater, overcurrent protection field and temperature sensor have a wide range of applications.
In addition, the applicant has multiple patents being related in terms of PTC high molecule electric resistances structure and manufacture method, with positive temperature
The PTC macromolecules device of degree coefficient (PTC) feature can also can theoretically make as heater element as temperature sensor
With, but it is limited by factors such as intensity, is still at present based on PTC-ceramic material for mesh.Generally, high molecular PTC device exists
There is relatively low resistance value during room temperature, and when temperature rises to a critical-temperature, its resistance value can jump thousands of times at once
More than, thereby change size of current, reach the purpose for indicating temperature.When temperature drop to room temperature, high molecular PTC temperature is passed
Sensor can return back to low resistive state, and circuital current recovers normal.Spy that is such a repeatable and being changed in specified critical-temperature
Point, makes high molecular PTC temperature sensor can be widely used in electronic circuit.
The utility model aims to provide a kind of high molecular PTC TEMP for being different from traditional ceramics PTC temperature sensors
Device, and using the surface mount formats being easily installed.
The content of the invention
Technical problem to be solved in the utility model is：A kind of high molecular PTC temperature sensor is provided.Pasted by surface
Dress form is convenient to be installed.
The utility model technical problem is solved by following proposal：A kind of high molecular PTC temperature sensor, including：
1）At least there is the composite material sheet of resistance positive temperature coefficient effect, the composite material sheet is by with the
First, the resistance positive temperature coefficient effect of second surface conductive polymer composites layer and it is tight relative to first, second surface
First conductive electrode of closely connected conjunction, the second conductive electrode are constituted, described conductive polymer composites layer by polymer and point
The conductive filler composition in polymer is dissipated, its definite melting point is between 65-300 DEG C；
2）One of conductive electrode electrical connection in first conducting end, with each composite material sheet, it is and corresponding
Another conductive electrode is not electrically connected；
The conductive electrode being electrically connected with the first conducting end in second conducting end, with each composite material sheet is not
Electrical connection, with the conductive electrode electrical connection not being electrically connected with the first conducting end in each composite material sheet；
3）First termination electrode, on the outermost one or both sides of whole element, connects the first conducting end, is used as weldering
Disk is used, and element is electrically connected with the pole of external circuit one after being soldered in circuit；
Second termination electrode, is similarly positioned on the outermost the same face of whole element or two sides with the first termination electrode, connection
Second conducting end, and electrically separate with the first termination electrode, used as pad, make element another with external circuit after being soldered in circuit
One pole is electrically connected；
4）Insulating barrier, the first conductive electrode and the second conductive electrode being covered on above-mentioned non-same composite material sheet it
Between, and between the outermost conductive electrode of element and termination electrode, and for electrical isolation.
The utility model at least has the composite material sheet of a resistance positive temperature coefficient effect, when by two layers or multilayer
It is in parallel using composite sheet during composite material sheet with resistance positive temperature coefficient effect, using same conducting side
Formula is realized, to reach the purpose of adjustment product resistance.
Described polymer base conductive composite material layer is made up of polymer and the conductive filler being scattered in polymer, its
In, polymer accounts for the volume fraction of conducing composite material layer between 20%~75%, selected from polyethylene, haloflex, oxygen
Change polyethylene, it is polyvinyl chloride, hycar, acrylonitrile-butadiene-styrene copolymer, polystyrene, poly-
Carbonic ester, polyamide, polyethylene terephthalate, polybutylene terephthalate (PBT), polyphenylene oxide, polyphenylene sulfide, poly- first
Aldehyde, phenolic resin, polytetrafluoroethylene (PTFE), tetrafluoraoethylene-hexafluoropropylene copolymer, poly- trifluoro-ethylene, polyvinyl fluoride, maleic anhydride connect
Branch polyethylene, polypropylene, Kynoar, epoxy resin, ethylene-vinyl acetate copolymer, ethylene-octene copolymer, poly- first
One kind and its mixture in base methyl acrylate, ethylene-acrylic acid copolymer.
The one kind of described conductive filler in carbon black, CNT, graphene, metal dust, conductivity ceramics powder
And its mixture.
Described metal dust is selected from：Copper, nickel, tungsten, tin, silver, gold or one kind and its mixture in its alloy.
Described conductivity ceramics powder is selected from：Metal nitride, metal carbides, metal boride, metal silicide it
In one or more of mixtures.
Described conducting end is located at element internal, or, positioned at element side, by laser drill or machine drilling, and
Hole surface attachment conductive metal layer is constituted.The shape of the conducting end can be any regular or irregular shape.
Described conductive metal layer is to use shape by chemical deposition, spraying, sputtering, plating or this several process combining
Into conductive metal layer.
The conductive metal layer, be by one kind in zinc, copper, nickel, cobalt, iron, tungsten, tin, lead, silver, gold, platinum or its alloy and
Its mixture is constituted.The technical scheme that the utility model purpose is taken is：Paste by polymer composite basic unit and closely
It is logical to composite sheet in first conductive electrode on above-mentioned high polymer material basic unit two sides and the second conductive electrode formation composite sheet
Crossing inner figure transfer etching technique makes the conductive electrode of composite sheet etch insulation tank, has then been stacked in two insulating barriers
Into the surface of composite sheet two of etching, and metal foil is covered each by, carries out high-temperature laminating, afterwards by after the substrate warp after pressing
Continuous outer layer metal paper tinsel is tin plating, etching outer graphics, printing solder mask, solidification solder mask, drilling, sink copper, copper-plating technique
Etc. step, the high molecular PTC temperature sensor of surface mount formats is obtained.
The utility model provides the preparation method of the high molecular PTC temperature sensor, as follows：
First, by conductive polymer composite basic unit component high molecular polymer, conductive filler in high-speed mixer
Mixing, then mixture knead at a temperature of 100~200 DEG C, then with molding or extrude method be made area be 100~
5000cm2, 0.1~3.0mm of thickness composite basic unit；The method of reusable heat pressure is compound in tinsel on hot press
The one the second two surfaces of material base layer are stated, composite material sheet are made, then again by this composite sheet gamma-rays（Co60）
Or electron beam irradiation crosslinking, dosage is 5~100Mrad, is fixed fusing point between 65-300 DEG C and with resistance positive temperature degree
The composite material sheet of coefficient effect；
Second, then surface labeling type polymer PTC temperature sensor is made using printed wiring board technique.
The utility model is different from traditional ceramics PTC temperature sensors, has the characteristics that：1 using with positive temperature system
Several conductive polymer polymer are used as temperature sensor core；Using the surface mount formats being easily installed, height is easily installed
Molecule PTC temperature sensors.The cost of product compares ceramic-like PTC temperature sensors, and smallerization, processing are more convenient, more suitable
Requirement for miniaturized device.
Brief description of the drawings
Fig. 1：The overall three-dimensional view of the utility model embodiment 1；
Fig. 2：The single sheet cross-section structure view of the utility model embodiment 1；
Fig. 3：The single sheet cross-section structure view of the utility model embodiment 2；
Label declaration in Fig. 1,2：
1st, 1a --- upper and lower first termination electrode；
2nd, 2a --- upper and lower second termination electrode；
3rd, 3a --- upper and lower insulating barrier；
4 --- the first conductive electrode；
5 --- conductive polymer composites basic unit；
6 --- the second conductive electrode；
7 --- the first conducting end；
8 --- the second conducting end；
9th, 9a --- solder mask；
In Fig. 3：
1 ', 1a ' --- the first termination electrode；
2 ', 2a ' --- the second termination electrode；
3 ', 3a ' --- insulating barrier；
4 ' --- the first conductive electrode；
5 ' --- conductive polymer composites basic unit；
6 ' --- the second conductive electrode；
7 ' --- the first conducting end；
8 ' --- the second conducting end；
9 ', 9a ' --- solder mask.
Embodiment
Embodiment 1
The overall three-dimensional view of Fig. 1 the utility model embodiment 1 and Fig. 2 the present embodiment individual layer composite sheet cross-section structure views
It is shown：
A kind of high molecular PTC temperature sensor, including：
1）There is the composite material sheet of a resistance positive temperature coefficient effect, the composite material sheet is by with first,
The conductive polymer composites layer of the resistance positive temperature coefficient effect on two surfaces 5 and is closely pasted relative to first, second surface
The first conductive electrode 4, the second conductive electrode 6 closed is constituted, and described conductive polymer composites layer is by polymer high density
Polyethylene and be scattered in high density polyethylene (HDPE) conductive filler metal boride composition, its definite melting point 65-300 DEG C it
Between；
2）First conducting end 7, be attached to conductive polymer composites layer 5 on the first conductive electrode 4 be electrically connected, with
Corresponding second conductive electrode 6 is not electrically connected；
Second conducting end 8, is electrically connected with being attached to the second conductive electrode 6 on conductive polymer composites layer 5；With
The first conductive electrode 4 being electrically connected with the first conducting end 7 is not electrically connected；
3）Upper and lower first termination electrode 1,1a, on the outermost above and below of whole element, connect the first conducting end
7, used as pad, element is electrically connected with the pole of external circuit one after being soldered in circuit；
Upper and lower second termination electrode 2,2a, the outermost upper and lower faces of whole element are similarly positioned in the first termination electrode
On, the second conducting end 8 is connected, and electrically separate with the first termination electrode 7, used as pad, make element after being soldered in circuit
It is electrically connected with another pole of external circuit；
4）Upper and lower insulating barrier 3,3a, upper insulating barrier 3 are covered on the first conductive electrode 4 on above-mentioned composite material sheet
Surface, and lower insulating barrier 3a are covered on the lower surface of the second conductive electrode 6 on above-mentioned composite material sheet, and element outermost
Between the conductive electrode and termination electrode of layer, for electrical isolation.
Preparation method is：
High density polyethylene (HDPE), metal boride are mixed into 10min in super mixer by a certain percentage.Then will mixing
Thing component is kneaded uniformly at a temperature of 180 DEG C in banbury, through cooling, is placed it in after crushing in pressing mold, pressure 5Mpa, temperature
Area 200cm is pressed under the conditions of 180 DEG C of degree2, thick 0.2mm polymer composites basic unit 5.By the copper foil warp after surface coarsening
After smooth, the two-sided of polymer composite basic unit is hot-pressed onto under the conditions of pressure 5Mpa, 160 DEG C of temperature, that is, obtains macromolecule
Conducing composite material layer 5 and the first conductive electrode 4 and the second conductive electrode 6 it is laminating into a resistance positive temperature coefficient effect
Composite material sheet, in vacuum drying oven 80 DEG C heat treatment 48 hours after, use gamma-rays（Co60）Irradiation, dosage is 15Mrad.It
The composite material sheet of a resistance positive temperature coefficient effect is made into the He of the first conductive electrode 4 by pattern transfer etching technique afterwards
Second conductive electrode 6 etches insulation tank respectively, and insulating barrier 3 on an insulating barrier then is superimposed on into the first conductive electrode 4 and one
Between metal foil, while lower insulating barrier 3a is superimposed between the second conductive electrode 6 and another metal foil, high-temperature high-pressure is then carried out
Close, substrate after pressing is by the way that termination electrode is tin plating, outer graphics are etched, the step such as printing solder mask, first end above and below formation
Electrode 1,1a and the second termination electrode 2,2a up and down.
Then by it is follow-up drill, heavy copper, copper facing, form two conducting ends, respectively the first conducting end 7 and second is led
Electric end 8.So as to prepare the high molecular PTC temperature sensor with two solders side.
The utility model also can be in parallel by two layers or multiple layer compisite sheet, using following conduction mode：
One of conductive electrode electrical connection in first conducting end, with each composite material sheet, it is and corresponding another
One conductive electrode is not electrically connected；
The conductive electrode being electrically connected with the first conducting end in second conducting end, with each composite material sheet is not
Electrical connection, with the conductive electrode electrical connection not being electrically connected with the first conducting end in each composite material sheet；
First termination electrode, on the outermost one or both sides of whole element, connects the first conducting end, is used as pad
Use, element is electrically connected with the pole of external circuit one after being soldered in circuit；
Second termination electrode, is similarly positioned on the outermost the same face of whole element or two sides with the first termination electrode, connection
Second conducting end, and electrically separate with the first termination electrode, used as pad, make element another with external circuit after being soldered in circuit
One pole is electrically connected.
To reach the purpose of adjustment product resistance.
Described polymer accounted in addition to polyethylene the volume fraction of the conducing composite material basic unit between 20%~75% it
Between, selected from addition to polyethylene, it can also be：Haloflex, oxidic polyethylene, polyvinyl chloride, butadiene-acrylonitrile copolymer
Thing, acrylonitrile-butadiene-styrene copolymer, polystyrene, makrolon, polyamide, polyethylene terephthalate,
Polybutylene terephthalate (PBT), polyphenylene oxide, polyphenylene sulfide, polyformaldehyde, phenolic resin, polytetrafluoroethylene (PTFE), tetrafluoroethene-hexafluoro
Propylene copolymer, poly- trifluoro-ethylene, polyvinyl fluoride, maleic anhydride grafted polyethylene, polypropylene, Kynoar, epoxy resin,
One in ethylene-vinyl acetate copolymer, ethylene-octene copolymer, polymethyl methacrylate, ethylene-acrylic acid copolymer
Plant and its mixture.
The one kind of described conductive filler in carbon black, CNT, graphene, metal dust, conductivity ceramics powder
And its mixture.
Described metal dust is selected from：Copper, nickel, tungsten, tin, silver, gold or one kind and its mixture in its alloy.
Described conductivity ceramics powder, which is selected from, removes metal diboride beyond the region of objective existence, can also be：Metal nitride, metal carbides,
One or more of mixtures among metal silicide.
Described conducting end is formed by techniques such as laser drill, machine drillings, and hole surface attachment conductive metal layer is constituted,
The shape of the conducting end can be any regular or irregular shape.
Described conductive metal layer, is used by chemical deposition, spraying, sputtering, plating or this several process combining
Formed.
The conductive metal layer, be by one kind in zinc, copper, nickel, cobalt, iron, tungsten, tin, lead, silver, gold, platinum or its alloy and
Its mixture is constituted.
Embodiment 2
Other are same as Example 1 for the present embodiment, and simply conducting end is located at element internal.As shown in figure 3,
A kind of high molecular PTC temperature sensor, including：
1）There is the composite material sheet of a resistance positive temperature coefficient effect, the composite material sheet is by with first,
The conductive polymer composites layer of the resistance positive temperature coefficient effect on two surfaces 5 ' and is closely pasted relative to first, second surface
The first conductive electrode 4 ', the second conductive electrode 6 ' closed is constituted, and described conductive polymer composites layer is highly dense by polymer
Degree polyethylene and be scattered in high density polyethylene (HDPE) conductive filler metal boride composition, its definite melting point 65-300 DEG C it
Between；
2）First conducting end 7 ', positioned at element internal, with the first conduction being attached on conductive polymer composites layer 5 '
Electrode 4 ' is electrically connected, and is not electrically connected with corresponding second conductive electrode 6 '；
Second conducting end 8 ', positioned at the opposite side of element internal, with being attached to second on conductive polymer composites layer 5 '
Conductive electrode 6 ' is electrically connected；It is not electrically connected with the first conductive electrode 4 ' with the electrical connection of the first conducting end 7 '；
3）Upper and lower first termination electrode 1 ', 1a ', on the outermost above and below of whole element, connection first is conductive
End 7 ', uses as pad, element is electrically connected with the pole of external circuit one after being soldered in circuit；
Upper and lower second termination electrode 2 ', 2a ', the outermost upper and lower faces of whole element are similarly positioned in the first termination electrode
Opposite side on, connect the second conducting end 8 ', and with the electric cut-off of the first termination electrode 7 ', used as pad, be soldered to circuit
In after element is electrically connected with another pole of external circuit；
4）Upper and lower insulating barrier 3 ', 3a ', upper insulating barrier 3 ' are covered on the first conductive electrode on above-mentioned composite material sheet
4 ' upper surfaces, and lower insulating barrier 3a ' are covered on the lower surface of the second conductive electrode 6 ' on above-mentioned composite material sheet, Yi Jiyuan
Between the outermost conductive electrode of part and termination electrode, for electrical isolation.
The utility model technology contents and technical characterstic have revealed that as above, but those skilled in the art are still potentially based on this
Teaching and the announcement of utility model and make a variety of replacements and modification without departing substantially from the utility model spirit.Therefore, the utility model
Protection domain should be not limited to disclosed in embodiment, and should include various without departing substantially from replacement of the present utility model and modification, and be
Claim above is covered.
Claims (2)
1. a kind of high molecular PTC temperature sensor, including：
1）At least there is the composite material sheet of resistance positive temperature coefficient effect, the composite material sheet by with first,
The resistance positive temperature coefficient effect of second surface conductive polymer composites layer and closely pasted relative to first, second surface
The first conductive electrode, the second conductive electrode closed is constituted, and its definite melting point is between 65-300 DEG C；
2）One of conductive electrode electrical connection in first conducting end, with each composite material sheet, it is and corresponding another
Individual conductive electrode is not electrically connected；
The conductive electrode being electrically connected with the first conducting end in second conducting end, with each composite material sheet is not electric
Connection, with the conductive electrode electrical connection not being electrically connected with the first conducting end in each composite material sheet；
3）First termination electrode, on the outermost one or both sides of whole element, connects the first conducting end, makes as pad
With making element be electrically connected with the pole of external circuit one after being soldered in circuit；
Second termination electrode, is similarly positioned on the outermost the same face of whole element or two sides with the first termination electrode, connection second
Conducting end, and electrically separate with the first termination electrode, used as pad, element and another pole of external circuit are made after being soldered in circuit
It is electrically connected；
4）Insulating barrier, between the first conductive electrode and the second conductive electrode that are covered on above-mentioned non-same composite material sheet,
And between the outermost conductive electrode of element and termination electrode, and for electrical isolation.
2. high molecular PTC temperature sensor according to claim 1, it is characterised in that described conducting end is located at element
Inside, or, positioned at element side, by laser drill or machine drilling, and hole surface adheres to conductive metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720064831.4U CN206410798U (en) | 2017-01-19 | 2017-01-19 | High molecular ptc temperature sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720064831.4U CN206410798U (en) | 2017-01-19 | 2017-01-19 | High molecular ptc temperature sensor |
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| CN206410798U true CN206410798U (en) | 2017-08-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679844A (en) * | 2017-01-19 | 2017-05-17 | 上海长园维安电子线路保护有限公司 | Polymer PTC temperature sensor |
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2017
- 2017-01-19 CN CN201720064831.4U patent/CN206410798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679844A (en) * | 2017-01-19 | 2017-05-17 | 上海长园维安电子线路保护有限公司 | Polymer PTC temperature sensor |
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| CP03 | Change of name, title or address |
Address after: 200083 806, floor 8, No. 125, Liuying Road, Hongkou District, Shanghai Patentee after: Shanghai Wei'an Electronic Co.,Ltd. Address before: Seven road 201202 Shanghai Pudong New Area Shiwan No. 1001 Patentee before: Shanghai Changyuan Wayon Circuit Protection Co.,Ltd. |
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| CP03 | Change of name, title or address |
Address after: Room 806, 8th floor, 125 Liuying Road, Hongkou District, Shanghai 200083 Patentee after: Shanghai Weian Electronics Co.,Ltd. Address before: 806, 8th floor, 125 Liuying Road, Hongkou District, Shanghai 200083 Patentee before: Shanghai Wei'an Electronic Co.,Ltd. |