CN2636386Y - Surface installation type packed heatsensitive impedance device and circuit protector - Google Patents
Surface installation type packed heatsensitive impedance device and circuit protector Download PDFInfo
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- CN2636386Y CN2636386Y CN 02284662 CN02284662U CN2636386Y CN 2636386 Y CN2636386 Y CN 2636386Y CN 02284662 CN02284662 CN 02284662 CN 02284662 U CN02284662 U CN 02284662U CN 2636386 Y CN2636386 Y CN 2636386Y
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Abstract
The utility model discloses a surface mounting type lamination heat-sensitive resistance device and circuit protection device, which is characterized in that: existing double layer metal foil basal plate that can be taken as the basal material for processing and the conductive composite material with PTC nature can be adopted to coordinate with the design and assembly mode for the connection among a plurality of electrodes and the circuits among the electrodes to realize a parallel connection surface mounting type lamination heat-sensitive resistance device and greatly simplify the fabrication procedure for the surface mounting lamination heat-sensitive resistance device.
Description
Technical field
A kind of surface installing type lamination temperature-sensitive impedance means, You Zhiyi have the surface installing type lamination temperature-sensitive impedance means of semistor (PTC) characteristic.
Background technology
At present, the PTC device has been widely used in temperature detection, security control, temperature-compensating or the like field.In the past, thermistor apparatus mainly was to be material with the pottery, but pottery needs the higher temperature manufacturing, and the manufacturing temperature is many to be needed to consume a large amount of energy more than 900 degree Celsius, and manufacturing process is more complicated also.Then, polymer-based thermistor apparatus is developed, because the temperature-sensitive impedance means of polymer base material, make temperature below 300 degree Celsius, processing, moulding ratio are easier to, and energy resource consumption is less, manufacturing process is simple, and is with low cost, so application is day by day broad.
In No. 5852397 patent of the U.S., a kind of polymer composite that utilizes the conductive fill material to fill is disclosed, make the PTC circuit protection device.The polymer composite that this conductive fill material with ptc characteristics is filled; when normal temperature, be low resistance state, when the electric current of the polymer composite of flowing through excessive; cause the temperature of polymer composite; when reaching certain switching temperature (Ts), the resistance of the polymer composite that the conductive fill material is filled can rise rapidly; avoid the circuit significant components to be burnt; therefore, can use and be the overcurrent protection device, and the temperature switch Design of device.This is because when normal temperature, and the conductive fill particle in the polymer composite that the conductive fill material is filled is the conduction state for being interconnected.When temperature is increased to switching temperature Ts when above; because of the resin base material volumetric expansion in the polymer composite; make conductive fill particle in the polymer composite by the state that is interconnected; support is broken and is become discontinuous state; cause the rapid rising of PTC circuit protection device resistance; and the cut-out electric current reaches overcurrent protection, and the purpose of temp control switch.And conductive fill material wherein commonly used is to be carbon black.
In No. 6023403 patent of the U.S., then disclose a kind of utilization and have double layer of metal paper tinsel up and down, and an intermediate layer has the PTC lamination structure of the conductive composite material assembly of ptc characteristics.Its collocation side electricity is led mechanism, and insulating material, will have the electrode of double layer of metal up and down of the conductive composite material assembly of ptc characteristics, conducts to another plane, and makes the surface installing type circuit protection device.
And these technology mainly are the conductive composite material assemblies that adopts metal forming and have ptc characteristics, behind the PTC lamination structure that forms via hot pressing, electroplate, manufacturing process such as etching, plated-through-hole and the plating of end silver again.The PTC lamination structure mechanical strength deficiency that forms of the conductive composite material assembly of metal forming/have ptc characteristics/metal forming hot pressing first, buckling deformation easily in above-mentioned manufacturing process, when after making circuit, carrying out the PTC lamination structure of hot pressing formation multilayer with other PTC lamination structure, insulation supporting material or metal electrode again, have levels contraposition accuracy problem.
Moreover above-mentioned technology mainly is to use the conductive composite material processing of metal forming and ptc characteristics, and material is softer, relatively has handling ease warpage, distortion, and dimensional stability is relatively poor, is difficult for shortcomings such as processing.
And, when solving these problems of making and processing, how to design a surface installing type lamination temperature-sensitive impedance means, make the conductive composite material assembly that wherein has ptc characteristics, because of reaching, circuit turn-on composite design mode has effect in parallel, must make surface installing type lamination temperature-sensitive impedance means, broader application is arranged, also be one of demand of industry.
Summary of the invention
One of the utility model purpose is to provide a kind of surface installing type lamination temperature-sensitive impedance means of new kenel, with in the past surface installing type lamination temperature-sensitive impedance means different structure is arranged, and different electric characteristics can be arranged.
Another purpose of the present utility model is to provide a kind of surface installing type lamination temperature-sensitive impedance means, and preferable structural strength is arranged, and makes this device fabrication and processing, and is more simple, and gets the problem of stability reduced in size.
A purpose more of the present utility model; be to provide a kind of surface installing type lamination temperature-sensitive impedance means, this surface installing type lamination temperature-sensitive impedance means is when making, and it is utilized the ripe manufacturing process of existing printed circuit board (PCB); make the processing and the manufacturing of sandwich circuit protection device, more simple and easy.
Another purpose of the present utility model, be to provide a kind of novel surface installing type lamination temperature-sensitive impedance means, the conductive composite material assembly that wherein has ptc characteristics, because of reaching, circuit turn-on composite design mode has effect in parallel, and must make surface installing type lamination temperature-sensitive impedance means, broader application is arranged.
In order to achieve the above object, the utility model provides a kind of surface installing type lamination temperature-sensitive impedance means, comprise, one first electrode layer, an insulating barrier, one first conductive layer, have conductive composite material layer, a second electrode lay of ptc characteristics, and first, second, third, fourth electricity is led mechanism.Wherein, first electrode layer comprises one first component portion and one second component portion, and between this first component portion and this second component portion, is to be made as state of insulation.And this insulating barrier is located at the below of this first electrode layer, and first conductive layer, is located at this insulating barrier below.This first conductive layer comprises one first conductive part and one second conduction that insulation is separated, and the minimum range of this first conductive part and this second conductive part, has the thickness of the conductive composite material layer of ptc characteristics greater than this, make that most electric current can't be via this first conductive part, cross-current is to this second conductive part.And this has the conductive composite material layer of ptc characteristics, is located at this first conductive layer below.And the second electrode lay, be located at this below of conductive composite material layer with ptc characteristics, and this second electrode lay then comprises one first component portion and one second component portion, the minimum range of this second electrode lay first component portion and this second electrode lay second component portion wherein, has the thickness of the conductive composite material layer of ptc characteristics greater than this, make the resistance of this second electrode lay first component portion and this second electrode lay second component portion, greater than the resistance of conductive composite material, make that most electric current can't be via the horizontal concurrent flow of the second electrode lay first component portion to the second electrode lay second component portion with ptc characteristics.Lead mechanism as for first electricity, be located between second component portion of first conductive part of this first conductive layer and this first electrode, make first conductive part of this first conductive layer, passed this insulating barrier,, form electric conducting state with second component portion of this first electrode.And second electricity is led mechanism, is located between first component portion of second conductive part of this first conductive layer and this first electrode, makes second conductive part of this first conductive layer, is passed this insulating barrier, with first component portion of this first electrode, forms electric conducting state.The 3rd electricity is led mechanism, then runs through this conductive composite material layer with ptc characteristics and this insulating barrier, makes this second electrode lay first component portion, must form electric conducting state with first component portion of first electrode layer; And the 4th electricity is led mechanism, runs through this conductive composite material layer with ptc characteristics and this insulating barrier, makes this second electrode lay second component portion, must form electric conducting state with second component portion of first electrode layer.
By above circuit turn-on design as can be known, electric current is by second component portion of first component portion to the first electrode of first electrode, two pipelines can be arranged: first, first component portion by first electrode layer, lead first component portion of mechanism via the 3rd electricity, via conductive composite material layer, to first conductive part of first conductive layer with ptc characteristics to the second electrode lay, lead mechanism via first electricity again, to second component portion of first electrode layer.The second, by first component portion of first electrode layer, lead second conductive part of mechanism to first conductive layer via second electricity, again via via conductive composite material layer with ptc characteristics, to second component portion of the second electrode lay, lead mechanism by the 4th electricity again, to second component portion of first electrode layer.Be with, the utility model can make the conductive composite material assembly that has ptc characteristics in the surface installing type lamination impedance means, have effect in parallel because of circuit turn-on composite design mode reaches, and must make surface installing type lamination temperature-sensitive impedance means, broader application is arranged.
Moreover, first electrode layer, insulating barrier and first conductive layer that link to each other, owing to used the double-sided metal foil substrate to replace, and the ripe manufacturing process that can directly apply mechanically existing printed circuit board (PCB), make the processing and the manufacturing of surface installing type lamination temperature-sensitive impedance means, more simple and easy.
And wherein the insulating barrier of double-sided metal paper tinsel is for a kind of insulation strengthening course, and preferable structural strength can be arranged, and preferable dimensional stability.
As for other advantage of the present utility model, and further details, below be further described with embodiment.
Description of drawings
The 1st figure is the assembly exploded view of the utility model one embodiment.
The 2nd figure is the top view of the foregoing description below first electrode layer and profile along the AA lines.
The 3rd figure is the profile of the foregoing description along the AA lines.
The 4th figure is the circuit diagram of the foregoing description.
The 5th figure is the generalized section of another embodiment of the utility model.
The 6th figure is the assembly exploded view of above-mentioned another embodiment of the utility model.
The reference numeral explanation
11 first electrode layers; 11B first electrode layer first component portion; 11A first electrode layer second component portion; 12 first conductive layers; First conductive part of 12B first conductive layer; Second conductive part of 12A first conductive layer; 13 first insulating barriers; 14 second electricity are led mechanism; 15 first electricity are led mechanism; 31 have the conductive composite material layer of ptc characteristics; 32 the second electrode lays; 32B the second electrode lay first component portion; 32A the second electrode lay second component portion; 41B the 3rd electricity is led mechanism; 41A the 4th electricity is led mechanism; 51 first isolation channels; 52 second isolation channels; 53 the 3rd isolation channels; 61 second insulating barriers; 62 the 3rd insulating barriers; Lamination temperature-sensitive impedance means 71,72,73,74 termination electrodes of 70 the utility model, first embodiment; The lamination temperature-sensitive impedance means of another embodiment of 80 the utility model; 81,82,83,84 termination electrodes; The green lacquer of 85,86 insulation; 87 the 3rd electricity are led mechanism; 88 the 4th electricity are led mechanism; 89 first electricity are led mechanism; 90 second electricity are led mechanism; First member of 91 first electrodes; 92 first electrodes, second member; First member of 93 second electrodes; 94 second electrodes, second member; 95 first have the conductive composite material layer of ptc characteristics; 97 second have the conductive composite material layer of ptc characteristics; 99 first insulating barriers; 100 second insulating barriers; 101 first conductive layers, first conductive part; 102 first conductive layers, second conductive part; 103 second conductive layers, first conductive part; 104 second conductive layers, second conductive part; 105 the 3rd conductive layers, first conductive part; 106 the 3rd conductive layers, second conductive part; 111 first isolation channels; 112 second isolation channels; 113 the 3rd isolation channels; 114 the 4th isolation channels; 115 the 5th isolation channels.
Embodiment
Please join the 1st figure, the 2nd figure, be the utility model first embodiment, one surface installing type lamination temperature-sensitive impedance means 70 is disclosed, comprise, one first electrode layer 11, one first insulating barrier 13, one first conductive layer 12, have conductive composite material layer 31, a second electrode lay 32, one second insulating barrier 61, one the 3rd insulating barrier 62 of ptc characteristics, and first electricity is led mechanism 15, second electricity and led that mechanism 14, the 3rd electricity lead the 41B of mechanism, the 4th electricity is led the 41A of mechanism.
First insulating barrier, 13 belows are provided with first conductive layer 12 in regular turn, have conducing composite material layer 31, the second electrode lay 32 of ptc characteristics, and the 3rd insulating barrier 62.
Wherein this first conductive layer 12 has the combining of conductive composite material layer 31 of ptc characteristics with this, or the second electrode lay 32 has the combining of conductive composite material layer 31 of ptc characteristics with this, can use the carbon black composite plating to handle, and feasible conductive composite material layer 31 with ptc characteristics, with first conductive layer 12, or between the second electrode lay 32, formation one contains the composite galvanized coating (not showing on the figure) of the continuous poriferous property structure of carbon black and metal.Utilize this continuous poriferous property structure, make metal electrode and have to form then well between the conductive composite material of ptc characteristics, and lower interface resistance is arranged.
And this has the conductive composite material layer 31 of ptc characteristics, in the present embodiment, is to be carbon black-filled conduction crystalline polymer composite material.And the crystalline polymer material can be polyethylene, polypropylene, poly-fluorine alkene and co-polymer thereof.And carbon black is to use carbon black Raven450 (this is U.S. Columbian company commodity).In the present embodiment, carbon black and crystalline polymer composite material, with part by weight one to, under 210 degree Celsius, mixed eight minutes to mould spectrometer, again with heat pressing forming machines under 175 degree Celsius, be hot pressed into that to have ptc characteristics thickness be tabular conductive composite material about 0.5mm.Only this conductive composite material with ptc characteristics is selected, and is for being familiar with the personage of this skill, displacer easily, be not feature of the present utility model.
Between first conductive layer 12, establish between one second isolation channel 52 and the second electrode lay 32, establish one the 3rd isolation channel 53, make first conductive layer 12 and the second electrode lay 32, all be divided into two parts of insulation.Wherein, first conductive layer 12 comprises one first conductive part 12B and one second conductive part 12A.The second electrode lay 32 then is divided into one first component portion 32B and one second component portion 32A.That is the first conductive part 12B of first conductive layer 12 and this second conductive part 12A are state of insulation.More and, between the first component portion 32B and the second component portion 32A of the second electrode lay 32, also be made as state of insulation.And in the 3rd isolation channel 53, also can insert insulating material.
The minimum range of this first conductive layer 12 first conductive part 12B and this second conductive part 12A, has the thickness of the conductive composite material layer 31 of ptc characteristics greater than this, make that most electric current can't be via this first conductive part 12B, cross-current is to this second conductive part 12A.
And the distance of this second electrode lay first component portion 32B and this second electrode lay second component portion 32A has the thickness of ptc characteristics conductive composite material layer 31 greater than this.
And the minimum range of this second electrode lay first component portion 32B and this first conductive layer first conductive part 12B, and the minimum range of this second electrode lay second component portion 32A and this first conductive layer second conductive part 12A, all less than the distance of this second electrode lay first component portion 32B and this second electrode lay second component portion 32A.Make the resistance of this second electrode lay first component portion 32B and this second electrode lay second component portion 32A, greater than the resistance of conductive composite material, make that electric current can't be via the horizontal concurrent flow of the second electrode lay first component portion 32B to the second electrode lay second component portion 32A with ptc characteristics.
Please join the 2nd figure, as seen from the figure, the second electrode lay 32 first component portion 32B are located at conductive composite material layer 31 below that this has ptc characteristics, and the second electrode lay 32 second component portion 32A also are located at conductive composite material layer 31 below that this has ptc characteristics.That is one side of second isolation channel 52 and the 3rd isolation channel 53 from top to bottom, is first conductive layer, 12 first conductive part 12B, the conductive composite material layer 31 with ptc characteristics and the second electrode lay 32 first component portion 32B in regular turn.The another side of second isolation channel 52 and the 3rd isolation channel 53 from top to bottom, then is first conductive layer, 12 second conductive part 12A, the conductive composite material layer 31 with ptc characteristics and the second electrode lay 32 second component portion 32A in regular turn.
First electricity is led mechanism 15, be located between the second component portion 11A of the first conductive part 12B of first conductive layer 12 and this first electrode 11, make the first conductive part 12B of this first conductive layer 12, passed this first insulating barrier 13, with the second component portion 11A of this first electrode 11, form electric conducting state.
And second electricity is led mechanism 14, be located between the first component portion 11B of the second conductive part 12A of this first conductive layer 12 and this first electrode 11, make the second conductive part 12A of this first conductive layer 12, passed this first insulating barrier 13, with the first component portion 11B of this first electrode 11, form electric conducting state.
Please join the 3rd figure, the 3rd electricity is led the 41B of mechanism, then runs through this conductive composite material layer 31 with ptc characteristics and first insulating barrier 13, makes the first component portion 32B of this second electrode lay 32, must form electric conducting state with the first component portion 11B of first electrode layer 11.And the 4th electricity is led the 41A of mechanism, runs through this conductive composite material layer 31 with ptc characteristics and first insulating barrier 13, makes this second electrode lay 32 second component portion 32A, must form electric conducting state with the second component portion 11A of first electrode layer 11.
And at the first component portion 11B, the second component portion 11A of first electrode layer 11, and on the first component portion 32B of the second electrode lay 32, the second component portion 32A, be respectively equipped with termination electrode 72,71,74,73.
Please join the 4th figure, it is the circuit diagram of present embodiment.Conductive composite material layer 31 with ptc characteristics, minimum widith because of second isolation channel 52 and the 3rd isolation channel 53, all greater than the thickness of conductive composite material layer 31 with ptc characteristics, and the 3rd isolation channel 53 is provided with the insulation barrier layer, and the resistance of the barrier layer that should insulate, resistance much larger than conductive composite material with ptc characteristics, make that electric current can't be via the horizontal concurrent flow of first conductive layer, first conductive part to this first conductive layer, second conductive part, or the horizontal concurrent flow of the second electrode lay first component portion is to the second electrode lay second component portion, promptly with as shown in the figure parallel way running.
In the present embodiment, first electricity is led mechanism 15, second electricity and is led that mechanism 14, the 3rd electricity lead the 41B of mechanism, the 4th electricity is led the 41A of mechanism, be to be plated-through-hole, so long as conductive material all can, and be good with the alloy that copper, nickel, silver, gold, zinc, tin and aforementioned metal are formed.Leading the 41B of mechanism and the 4th electricity for the 3rd electricity leads for the 41A of mechanism; because be positioned at side; also can use the plated-through-hole mode; but behind the circuit protector based on high-molecular material that cuts into the repetition size; in general ceramic passive component mode, make the mode of two side ends electrode and finish (not showing on the figure) again.
Second insulating barrier 61, one the 3rd insulating barrier 62 in the present embodiment, be to use the green lacquer of insulation, and this green lacquer that insulate can be inserted further more among first isolation channel 51 and the 3rd isolation channel 53, to simplify manufacturing process.
Please join the 5th figure and the 6th figure, it is second embodiment of the present utility model.It is with two in the device of previous embodiment, and with the direction of former first electrode layer inwardly, two be combined intos, the 6th figure then disclose its assembly and decompose details.This embodiment can make surface installing type lamination temperature-sensitive impedance means, gets further to produce effect in parallel.
By above embodiment explanation as can be known, the utility model provides a kind of surface installing type lamination temperature-sensitive impedance means of new kenel, and the surface installing type lamination temperature-sensitive impedance means with in the past has different structures, and different electric characteristics can be arranged.
Say again and by these embodiment and to know, electric current is by the second component portion 11A of first component portion 11B to the first electrode 11 of first electrode 11, two pipelines can be arranged: first, the first component portion 11B by first electrode layer 11, lead the first component portion 32B of the 41B of mechanism via the 3rd electricity, via conductive composite material layer 31, to the first conductive part 12B of first conductive layer 12 with ptc characteristics to the second electrode lay 32, lead mechanism 15 via first electricity again, to the second component portion 11A of first electrode layer 11.Second, the first component portion 11B by first electrode layer 11, lead the second conductive part 12A of mechanism's 14 to first conductive layers 12 via second electricity, again via conductive composite material layer 31 with ptc characteristics, the second component portion 32A to the second electrode lay 32, lead the 41A of mechanism by the 4th electricity again, to the second component portion 11A of first electrode layer 11.Be with, the utility model can make the conductive composite material assembly 31 that has ptc characteristics in the surface installing type lamination temperature-sensitive impedance means, have effect in parallel because of circuit turn-on composite design mode reaches, and must make surface installing type lamination temperature-sensitive impedance means, broader application is arranged.And first electrode layer 11, first insulating barrier 13 and first conductive layer 12 that link to each other, when making, owing to used the double-sided metal foil substrate to replace, and in the present embodiment, what use is that copper foil electrode thickness is the double-sided metal foil substrate about 35 microns, thereby the ripe manufacturing process that can directly apply mechanically existing printed circuit board (PCB), make the processing and the manufacturing of surface installing type lamination temperature-sensitive impedance means, more simple and easy.Again and, the insulation strengthening course of double-sided metal foil substrate wherein can be the formed laminated material layer of glass fabric of epoxy resin layer, polyimide resin bed, epoxy resin impregnation or the formed laminated material of the glass fabric of polyimide impregnation.In the present embodiment, being to use the glass fabric preimpregnation material of epoxy resin impregnation, is to be a kind of insulation strengthening course, preferable structural strength can be arranged, and preferable dimensional stability, the feasible surface installing type lamination temperature-sensitive impedance means of making, the quality precision is better.
Though the utility model explains with the above embodiments, do not represent protection range of the present utility model, exceed with above-mentioned explanation.For practising for the personage of this skill, when doing various modifications, for example, change select macromolecular material or add different conducting particless, change the plating condition, or change and form weight rate, and can reach identical effect.Spirit of the present utility model should not be taken off in only these modifications, still belongs in the protection range of the present utility model.Protection range of the present utility model, it is main must looking claim described.
Claims (19)
1. surface installing type lamination temperature-sensitive impedance means is characterized in that comprising:
One first electrode layer, this first electrode layer comprise one first component portion and one second component portion, and between this first component portion and this second component portion, are to be made as state of insulation;
One insulating barrier is located at the below of this first electrode layer;
One first conductive layer be located at this insulating barrier below, and this first conductive layer comprises one first conductive part and one second conductive part, and this first conductive part and this second conductive part, is to be state of insulation;
One first electricity is led mechanism, is located between second component portion of first conductive part of this first conductive layer and this first electrode, makes first conductive part of this first conductive layer, is passed this insulating barrier, with second component portion of this first electrode, forms electric conducting state;
One second electricity is led mechanism, is located between first component portion of second conductive part of this first conductive layer and this first electrode, makes second conductive part of this first conductive layer, is passed this insulating barrier, with first component portion of this first electrode, forms electric conducting state;
One has the conductive composite material layer of ptc characteristics, is located at this first conductive layer below;
One the second electrode lay comprises one first component portion and one second component portion, between this second electrode lay first component portion and this second electrode lay second component portion, is to be made as state of insulation; And the distance of this second electrode, first component portion and this second electrode, second component portion has the thickness of ptc characteristics conductive composite material layer greater than this; And the minimum range of this second electrode, first component portion and this first conductive layer, first conductive part, and the minimum range of this second electrode, second component portion and this first conductive layer, second conductive part, all less than the distance of this second electrode, first component portion and this second electrode, second component portion;
One the 3rd electricity is led mechanism, runs through this conductive composite material layer with ptc characteristics and this insulating barrier, makes this second electrode lay first component portion, must form electric conducting state with first component portion of first electrode layer;
One the 4th electricity is led mechanism, runs through this conductive composite material layer with ptc characteristics and this insulating barrier, makes this second electrode lay second component portion, must form electric conducting state with second component portion of first electrode layer.
2. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein this first electricity is led mechanism and this second electricity is led mechanism, is to be plated-through-hole.
3. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein between second member of this first member of this first electrode layer and this first electrode layer, establish with one first trench area every and insulate, and be filled with insulating material in this groove.
4. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein this first conductive part of this first conductive layer and this second conductive part are with one second channel insulation, and are filled with insulating material in this groove.
5. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein this of this second electrode lay first component portion and this second component portion are with one the 3rd channel insulation, and are filled with insulating material in this groove.
6. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein this has the conductive composite material layer of ptc characteristics, is to be carbon black-filled conduction crystalline polymer composite material.
7. as the surface installing type lamination temperature-sensitive impedance means of 6 of claims the, wherein this crystalline polymer material is to be selected from the group that is made up of polyethylene, polypropylene, poly-fluorine alkene and co-polymer thereof, at least one of them person.
8. as the surface installing type lamination temperature-sensitive impedance means of 6 of claims the, wherein this first conductive layer and this have between the conductive composite material layer of ptc characteristics, are provided with a composite galvanized coating that contains the continuous poriferous property structure of carbon black and metal.
9. as the surface installing type lamination temperature-sensitive impedance means of 6 of claims the, wherein this second electrode lay and this have between the conductive composite material layer of ptc characteristics, are provided with a composite galvanized coating that contains the continuous poriferous property structure of carbon black and metal.
10. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein the top of this first electrode layer more is provided with the green enamelled coating of one first insulation, and the below of this second electrode lay, more is provided with the green enamelled coating of one second insulation.
11. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein this first component portion of this first electrode layer and this second component portion are respectively equipped with termination electrode.
12. as the surface installing type lamination temperature-sensitive impedance means of 1 of claim the, wherein this of this second electrode lay first component portion and this second component portion are respectively equipped with termination electrode.
13. circuit protection device, it is characterized in that comprising: one first electrode layer, one first insulating barrier, one first conductive layer, have the conductive composite material layer of ptc characteristics, one the second electrode lay, and first electricity is led, and mechanism, second electricity lead mechanism, the 3rd electricity leads mechanism and the 4th electricity is led mechanism; This circuit protection device from top to bottom is that this first electrode layer, this first insulating barrier, this first conductive layer, this has the conductive composite material layer of ptc characteristics, and this second electrode lay in regular turn; Be provided with groove in this first electrode layer, make this first electrode layer divide into one first component portion and one second component portion, and between this first component portion and this second component portion, be to be made as state of insulation;
In this first conductive layer, be provided with groove in, make this first conductive layer divide into one first conductive part and one second conductive part of insulation;
Between this second electrode lay, be provided with a lower groove, make this second electrode lay, divide into one first component portion and one second component portion of insulation; And the minimum widith of this lower groove has the thickness of the conductive composite material layer of ptc characteristics greater than this;
This first electricity is led mechanism, be located between second component portion of first conductive part of this first conductive layer and this first electrode, make first conductive part of this first conductive layer, passed this first insulating barrier, with second component portion of this first electrode, form electric conducting state; This second electricity is led mechanism, be located between first component portion of second conductive part of this first conductive layer and this first electrode, make second conductive part of this first conductive layer, passed this first insulating barrier, with first component portion of this first electrode, form electric conducting state;
The 3rd electricity is led mechanism, runs through this conductive composite material layer with ptc characteristics and this insulating barrier, makes this second electrode lay first component portion, must form electric conducting state with first component portion of first electrode layer; But the 3rd electricity is led mechanism and is not contacted with first conductive part formation entity of this first conductive layer; The 4th electricity is led mechanism, runs through this conductive composite material layer with ptc characteristics and this insulating barrier, makes this second electrode lay second component portion, must form electric conducting state with second component portion of first electrode layer; But the 4th electricity is led mechanism and is not contacted with second conductive part formation entity of this first conductive layer.
14. as the circuit protection device of 13 of claims the, wherein this has the conductive composite material layer of ptc characteristics, is to be carbon black-filled conduction crystalline polymer composite material.
15. as the circuit protection device of 13 of claims the, wherein this crystalline polymer material is to be selected from the group that is made up of polyethylene, polypropylene, poly-fluorine alkene and co-polymer thereof, at least one of them person.
16. as the circuit protection device of 13 of claims the, wherein this first conductive layer and this have between the conductive composite material layer of ptc characteristics, are provided with a composite galvanized coating that contains the continuous poriferous property structure of carbon black and metal.
17. as the circuit protection device of 13 of claims the, wherein this second electrode lay and this have between the conductive composite material layer of ptc characteristics, are provided with a composite galvanized coating that contains the continuous poriferous property structure of carbon black and metal.
18. as the circuit protection device of 13 of claims the, wherein this first component portion of this first electrode layer and this second component portion are respectively equipped with termination electrode.
19. as the circuit protection device of 13 of claims the, wherein this of this second electrode lay first component portion and this second component portion are respectively equipped with termination electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02284662 CN2636386Y (en) | 2002-11-15 | 2002-11-15 | Surface installation type packed heatsensitive impedance device and circuit protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02284662 CN2636386Y (en) | 2002-11-15 | 2002-11-15 | Surface installation type packed heatsensitive impedance device and circuit protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2636386Y true CN2636386Y (en) | 2004-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02284662 Expired - Lifetime CN2636386Y (en) | 2002-11-15 | 2002-11-15 | Surface installation type packed heatsensitive impedance device and circuit protector |
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| CN (1) | CN2636386Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999754A (en) * | 2021-03-01 | 2022-09-02 | 天芯互联科技有限公司 | Thermistor manufacturing method and thermistor |
-
2002
- 2002-11-15 CN CN 02284662 patent/CN2636386Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999754A (en) * | 2021-03-01 | 2022-09-02 | 天芯互联科技有限公司 | Thermistor manufacturing method and thermistor |
| CN114999754B (en) * | 2021-03-01 | 2023-06-02 | 天芯互联科技有限公司 | Manufacturing method of thermistor and thermistor |
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Expiration termination date: 20121115 Granted publication date: 20040825 |