WO2018113059A1 - 具有外部电气测试点的电路保护组件 - Google Patents

具有外部电气测试点的电路保护组件 Download PDF

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Publication number
WO2018113059A1
WO2018113059A1 PCT/CN2017/071220 CN2017071220W WO2018113059A1 WO 2018113059 A1 WO2018113059 A1 WO 2018113059A1 CN 2017071220 W CN2017071220 W CN 2017071220W WO 2018113059 A1 WO2018113059 A1 WO 2018113059A1
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WIPO (PCT)
Prior art keywords
circuit protection
copper
electrical test
conductive
copper foil
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PCT/CN2017/071220
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English (en)
French (fr)
Inventor
杨铨铨
刘玉堂
范荣
方勇
吴国臣
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上海长园维安电子线路保护有限公司
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Publication of WO2018113059A1 publication Critical patent/WO2018113059A1/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416Connectors, terminals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/01Mounting; Supporting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/14Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/148Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals embracing or surrounding the resistive element
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/027Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic material

Definitions

  • the invention relates to a circuit protection component with an external electrical test point, belonging to a polymer electronic component, in particular to a protection element having a positive temperature effect of a resistor built in a copper clad laminate and having an external electrical test point Circuit protection component.
  • the polymer-based conductive composite material can maintain a low resistance value under normal temperature and has a characteristic of being sensitive to temperature changes, that is, when an overcurrent or an overheating phenomenon occurs in the circuit, its resistance instantaneously increases to a high resistance value.
  • the circuit is in an open state to achieve the purpose of protecting circuit components. Therefore, the protective element prepared from the polymer-based conductive composite can be connected to the circuit as a material of the current sensing element. Such materials have been widely used in electronic circuit protection components.
  • the conventional circuit protection components mounted on the surface of the circuit board are subject to more and more limited space. If further performance is required, the space limitation causes the performance to be improved and limited if the circuit protection component is built in the copper foil.
  • the inside of the laminate can greatly reduce the influence of the thickness of the circuit protection component, and bring a large design space to the area of the circuit protection component.
  • the circuit protection component is sealed inside the copper clad laminate, which greatly reduces the influence of the external environment on it, and thus has better environmental reliability.
  • electrical performance sorting is sometimes required. Therefore, setting test points on the surface of such built-in devices can confirm whether the built-in components are faulty or not, and can also facilitate the electrical performance sorting of electronic components.
  • the applicant application number 2016109037960 provides a circuit protection assembly comprising a protective element having a positive temperature effect of resistance, consisting of a layer of a polymer-based conductive composite material tightly sandwiched between two metal electrode sheets, a copper foil coated a laminate having a through hole in the middle, wherein the protective member is disposed in the through hole, and the copper clad laminate is provided with an adhesive layer on the upper and lower surfaces of the substrate as the circuit protection component, and the protective member is coated a copper clad laminate and a space formed by the upper and lower adhesive layers; the protective element having a positive temperature resistance effect is electrically connected to the protected circuit by the conductive member; wherein the polymer-based conductive composite layer comprises at least one A polymer substrate and at least one conductive powder having a resistivity of less than 100 ⁇ cm, the conductive powder having a particle size distribution ranging from 0.1 ⁇ m to 50 ⁇ m.
  • the circuit protection component of the invention can save the installation space of the circuit protection component and has good environmental reliability.
  • the object of the present invention is to provide a circuit protection component having an external electrical test point, which improves the environmental reliability and detectability of the circuit protection device while adapting to the miniaturization requirements of the circuit protection device.
  • a circuit protection assembly having an external electrical test point, comprising a protective element having a positive temperature effect of resistance, which is composed of a layer of a polymer-based conductive composite material tightly sandwiched between two metal electrode sheets. Also includes:
  • an electrical test point disposed on the surface insulating layer of the circuit protection component, not covered by the insulating layer, or plated, sprayed, or electrolessly plated with a conductive material on the portion not covered by the upper insulating layer
  • the electrical test point is electrically connected to the protective element having a positive temperature effect of the resistor.
  • the invention protects the circuit protection component inside the copper-clad laminate, which can reduce the thickness of the protection component having the positive temperature effect of the resistor, reduce the influence of the external environment, and has excellent environmental reliability.
  • the electrical characteristics of the protective element having a positive temperature effect placed inside the circuit protection component can be conveniently detected by an electrical test point disposed on the surface of the circuit protection component.
  • the protective element having a positive temperature resistance effect is connected in series to the protected circuit through the conductive member to form a conductive path.
  • the copper clad laminate is a single layer, a double layer or a multi-layer substrate, and the substrate is composited with a copper foil by an adhesive layer, and the substrate is a paper-based copper clad laminate and a glass fiber cloth base.
  • a copper clad laminate, a composite clad copper foil laminate, a laminated multi-layer clad copper clad laminate, or a ceramic-based copper clad laminate is a single layer, a double layer or a multi-layer substrate, and the substrate is composited with a copper foil by an adhesive layer, and the substrate is a paper-based copper clad laminate and a glass fiber cloth base.
  • the adhesive layer is made of phenolic resin, epoxy resin, polyester resin, bismaleimide modified triazine resin, polyimide resin, diphenylene ether resin, horse.
  • phenolic resin epoxy resin
  • polyester resin bismaleimide modified triazine resin
  • polyimide resin polyimide resin
  • diphenylene ether resin horse.
  • an anhydride imine-styrene resin a polycyanate resin
  • a polyolefin resin a polyolefin resin.
  • the conductive powder is selected from the group consisting of one of a carbon-based conductive powder, a metal powder, and a conductive ceramic powder, or a mixture of two or more thereof.
  • the carbon-based conductive powder is: carbon black, carbon fiber, carbon nanotube, graphite, graphene, and a mixture thereof;
  • the metal powder is: one of copper, nickel, cobalt, iron, tungsten, tin, lead, silver, gold, platinum or an alloy thereof and a mixture thereof;
  • the conductive ceramic powder is: a mixture of one or more of a metal nitride, a metal carbide, a metal boride, a metal silicide, and a layered structural ceramic powder;
  • the metal boride is lanthanum boride, lanthanum boride, vanadium boride, vanadium diboride, zirconium diboride, titanium diboride, lanthanum boride, lanthanum diboride, boron Molybdenum dichloride, molybdenum pentoxide, bismuth diboride, diboron boricide, boron One of tungsten, boric chromium dichromide, chromium boride, chromium diboride or chromium triboride.
  • the metal nitride is one of tantalum nitride, vanadium nitride, zirconium nitride, titanium nitride, tantalum nitride or tantalum nitride.
  • the metal carbide is one of tantalum carbide, vanadium carbide, zirconium carbide, titanium carbide, tantalum carbide, molybdenum carbide, tantalum carbide, tungsten carbide, tungsten carbide or dichromized .
  • the metal silicide is lanthanum silicide, lanthanum trisilicate, lanthanum silicide, vanadium disilicide, zirconium disilicide, titanium disilicide, lanthanum silicide, lanthanum disilicide, molybdenum disilicide, One of tantalum silicide, tungsten disilicate, triple chromium silicide or chromium disilicate.
  • the shape of the conductive member is a dot shape, a line shape, a strip shape, a lamellar shape, a column shape, a circular through hole, a semicircular through hole, a curved through hole, a blind hole, and other irregular shapes. And their combination.
  • the conductive member substrate is one of nickel, copper, aluminum, zinc, tin, antimony, indium, silver, gold, and alloys thereof.
  • the number of the electrical test points is two or more, and the selected substrate is: one of nickel, copper, aluminum, zinc, tin, antimony, indium, silver, gold, and Alloy.
  • the electrical test points are located on the same surface or different surfaces of the circuit protection component.
  • the electrical test point has the shape of a dot, a line, a strip, a triangle, a polygon, other irregular shapes, and a combination thereof.
  • the polymer substrate is: polyethylene, chlorinated polyethylene, oxidized polyethylene, polyvinyl chloride, butadiene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene copolymer , polystyrene, polycarbonate, polyamide, polyimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene ether, polyphenylene sulfide, polyoxymethylene, phenolic Resin, polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, polytrifluoroethylene, polyvinyl fluoride, maleic anhydride grafted polyethylene, polypropylene, polyvinylidene fluoride, epoxy resin, ethylene-vinyl acetate One of a copolymer, a polymethyl methacrylate, an ethylene-acrylic acid copolymer, and a mixture thereof.
  • the present invention provides a method of fabricating the circuit protection assembly described above, in accordance with the following steps:
  • a copper clad laminate is used as a protective substrate for a protective element having a positive temperature effect of resistance, and a polymer conductive composite base layer having a positive temperature effect of resistance, a lower metal electrode, and an upper metal electrode are formed to have a positive resistance temperature.
  • the effecting protective element is placed in the substrate of the copper clad laminate, the semi-cured adhesive layer is thermocompression bonded to the surface of the substrate of the copper clad laminate, and then the copper foil is pressed onto the semi-cured adhesive layer. Etching the copper foil to form a left and right upper copper foil on at least the upper surface;
  • a protective element having a positive temperature effect is built in the copper clad laminate, the polymer-based conductive composite layer comprising at least one polymer substrate and at least one resistivity of less than 100 ⁇ cm a conductive powder having a particle size distribution ranging from 0.1 ⁇ m to 50 ⁇ m;
  • the conductive member has three, one conductive member electrically connects the upper metal electrode to the copper foil on one side, the other conductive member electrically connects the lower metal electrode and the lower copper foil; the third conductive member places the lower copper foil Electrically connected to the copper foil on the other side;
  • the two electrical test points are disposed on the upper surface of the circuit protection component, and electrically connected to the protection element having a positive temperature effect by a resistor on the left and right upper copper foils, the two electrical tests
  • the points are the upper left copper foil and the upper right copper foil, which are not covered by the upper insulating layer, and have a shape of a dot, a line, a strip, a triangle, a polygon, or a combination thereof.
  • the lower metal electrode is electrically connected to the upper left copper foil through a conductive member
  • the upper right metal electrode is electrically connected to the upper right copper foil through another conductive member, so that the positive temperature effect of the resistor is obtained.
  • the protection element is electrically connected to the protected circuit.
  • the upper metal electrode is electrically connected to the copper foil on one side through a conductive member
  • the lower metal electrode is electrically connected to the copper foil on the other side through the other conductive member
  • the copper is further removed.
  • the foil is electrically connected to the upper metal electrode through the third conductive member to electrically connect the protective element having a positive temperature effect to the protected circuit.
  • the invention has the advantages that the circuit protection component is built in the copper-clad laminate, which can greatly reduce the influence of the thickness of the circuit protection component and bring a large design space to the area of the circuit protection component. Moreover, the circuit protection component is sealed inside the copper clad laminate, which greatly reduces the influence of the external environment and has excellent environmental reliability. In addition, the electrical characteristics of the protective element having a positive temperature effect placed inside the circuit protection component can be conveniently detected by an electrical test point disposed on the surface of the circuit protection component.
  • Figure 1 is a schematic view of a protective element having a positive temperature effect of resistance of the present invention
  • Figure 2 is a schematic cross-sectional view showing the first embodiment of the present invention
  • Figure 3 is a schematic cross-sectional view showing a second embodiment of the present invention.
  • Figure 4 is a cross-sectional structural view showing a third embodiment of the present invention.
  • 331b upper insulating lacquer layer; 331a - lower insulating lacquer layer;
  • circuit protection component of the present invention For the circuit protection component of the present invention, the specific implementation is as follows:
  • the polymer substrate is: polyethylene, chlorinated polyethylene, oxidized polyethylene, polyvinyl chloride, butadiene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene copolymer, polystyrene, poly Carbonate, polyamide, polyimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene ether, polyphenylene sulfide, polyoxymethylene, phenolic resin, polytetrafluoroethylene , tetrafluoroethylene-hexafluoropropylene copolymer, polytrifluoroethylene, polyvinyl fluoride, maleic anhydride grafted polyethylene, polypropylene, polyvinylidene fluoride, epoxy resin, ethylene-vinyl acetate copolymer, polymethyl One of methyl acrylate, ethylene-acrylic acid copolymer, and mixtures thereof.
  • the conductive powder is selected from the group consisting of one of a carbon-based conductive powder, a metal powder, and a conductive ceramic powder, or a mixture of two or more thereof, the conductive powder satisfying a resistivity of less than 100 ⁇ cm, and a particle size distribution ranging from 0.1 ⁇ m to ⁇ Between 50 ⁇ m.
  • melt-mixed electrically conductive composite material having a positive electric resistance effect is calendered by an open mill to obtain a conductive composite base layer 120 having a positive electric resistance effect of a thickness of 0.20 to 0.25 mm, as shown in FIG.
  • the conductive composite base layer 120 having the positive temperature effect of the resistor is placed between the two metal electrode sheets 110a and 110b as shown in FIG. 1, the rough surface of the metal electrode sheets 110a and 110b and the conductive composite material having the positive temperature effect of the electric resistance.
  • the base layer 120 is tightly bonded.
  • the above three layers are tightly bonded together by a thermocompression bonding method.
  • the thermocompression temperature was 180 ° C
  • the pressure was 12 MPa
  • the time was 10 minutes
  • a chip having a positive temperature effect of resistance is stamped or diced to form a protective element having a positive temperature resistance effect as shown in FIG. 1 of a suitable size.
  • a circuit protection component comprising the above-mentioned protective element having a positive temperature resistance effect formed by tightly sandwiching a polymer-based conductive composite material layer between two metal electrode sheets, further comprising: as shown in FIG. 2
  • a copper-clad laminate as a substrate of the circuit protection component, has a receiving space for the protective element in the middle, the conductive composite base layer 220 having the positive temperature effect of the resistor, the lower metal electrode 210a and the upper metal electrode
  • a protective element having a positive temperature effect of 210b is placed in the accommodating space of the substrate 232 of the copper-clad laminate, and the semi-cured adhesive layers 233a and 233b are thermocompression-bonded to the substrate of the copper-clad laminate.
  • the upper and lower surfaces of 232, then the copper foil is pressed onto the semi-cured layer, and the copper foil is etched to form an upper left copper foil 250c, an upper right copper foil 250b and a lower copper foil 250a;
  • the conductive powder has a particle size distribution ranging from 0.1 ⁇ m to 50 ⁇ m;
  • the conductive member electrically connects the protective element having the positive temperature effect of the resistor to the protected circuit, electrically connects the upper metal electrode 210b to the upper right copper foil 250b through the conductive member 240b, and the lower metal electrode 210a passes the conductive member 240a. Electrically connected to the lower copper foil 250a, the lower copper foil 250a and the upper left copper foil 250c are electrically connected by the conductive member three 240c, and the lower copper foil 250a and the upper right copper foil 250b may be processed into external lines of various shapes.
  • the shape of the conductive member is a circular through hole, and may also be a dot shape, a line shape, a strip shape, a lamellar shape, a column shape, a semicircular through hole, a curved through hole, a blind hole, other irregular shapes, and a combination thereof. ;
  • the number of electrical test points is two, which is placed on the upper surface of the circuit protection component, and is electrically connected to the protection component having the positive temperature effect of the resistor.
  • the substrate for the electrical test point is: nickel, copper, aluminum. , one of zinc, tin, antimony, indium, silver, gold and alloys thereof. Electrical test point method:
  • the upper and lower surfaces of the circuit protection component are respectively covered with an upper insulating varnish layer 231b and a lower insulating varnish layer 231a to prevent other components from being in electrical contact with the external circuit.
  • the electrical test points one and two 260a and 260b are disposed on the upper surface of the circuit protection component.
  • the parts of the upper left copper foil 250c and the upper right copper foil 250b are not covered by the upper insulating varnish layer 231b, and the electrical test points are in the shape of a dot, and may be a line, a strip, a triangle, or a polygon. Shapes, other irregular shapes and their combination.
  • the electrical test point 260a is electrically connected to the upper left copper foil 250c, and the electrical test point 2 260b is electrically connected to the upper right copper foil 250b.
  • the electrical characteristics of the protective element having a positive temperature effect of the resistance can be detected by this electrical test point.
  • the identifier can be printed on the insulating lacquer layer.
  • the copper clad laminate is a single layer, a double layer or a multi-layer substrate, and the substrate is composited with a copper foil by an adhesive layer, and the substrate is a paper-based copper-clad laminate and a glass fiber-based copper-clad laminate.
  • a foil laminate, a composite copper clad laminate, a laminated multi-layer copper-clad laminate, or a ceramic-based copper clad laminate is one or a combination of a foil laminate, a composite copper clad laminate, a laminated multi-layer copper-clad laminate, or a ceramic-based copper clad laminate.
  • the semi-cured adhesive layer is made of phenolic resin, epoxy resin, polyester resin, bismaleimide modified triazine resin, polyimide resin, diphenylene ether resin, maleic anhydride imine-styrene One of a resin, a polycyanate resin, a polyolefin resin, or a combination thereof.
  • the conductive powder is selected from the group consisting of one of a carbon-based conductive powder, a metal powder, and a conductive ceramic powder, or a mixture of two or more thereof.
  • the carbon-based conductive powder is carbon black, carbon fiber, carbon nanotube, graphite, graphene, and a mixture thereof.
  • the metal powder is one of copper, nickel, cobalt, iron, tungsten, tin, lead, silver, gold, platinum or an alloy thereof and a mixture thereof.
  • the conductive ceramic powder is a mixture of one or more of a metal nitride, a metal carbide, a metal boride, a metal silicide, and a layered structure ceramic powder. among them,
  • the metal boride is lanthanum boride, lanthanum diboride, vanadium boride, vanadium diboride, zirconium diboride, titanium diboride, lanthanum boride, lanthanum diboride, molybdenum boride, penta boron Molybdenum dichloride, antimony diboride, diboron boride, tungsten boride, boron diboride, boron One of chromium, chromium diboride or chromium triboride.
  • the metal nitride is one of tantalum nitride, vanadium nitride, zirconium nitride, titanium nitride, tantalum nitride or tantalum nitride.
  • the metal carbide is one of tantalum carbide, vanadium carbide, zirconium carbide, titanium carbide, tantalum carbide, molybdenum carbide, tantalum carbide, tungsten carbide, tungsten carbide or trichromium.
  • the metal silicide is lanthanum silicide, lanthanum trisilicate, lanthanum silicide, vanadium disilicide, zirconium disilicide, titanium disilicide, lanthanum trisilide, lanthanum disilicide, molybdenum disilicide, lanthanum disilicide, disilicide One of tungsten, silicon trioxide or chromium disilicate.
  • the polymer substrate is: polyethylene, chlorinated polyethylene, oxidized polyethylene, polyvinyl chloride, butadiene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene copolymer, polystyrene, poly Carbonate, polyamide, polyimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene ether, polyphenylene sulfide, polyoxymethylene, phenolic resin, polytetrafluoroethylene , tetrafluoroethylene-hexafluoropropylene copolymer, polytrifluoroethylene, polyvinyl fluoride, maleic anhydride grafted polyethylene, polypropylene, polyvinylidene fluoride, epoxy resin, ethylene-vinyl acetate copolymer, polymethyl One of methyl acrylate, ethylene-acrylic acid copolymer, and mixtures thereof.
  • a circuit protection assembly having an external electrical test point similar to Embodiment 1, comprising a positive temperature effect having a resistance consisting of a conductive composite base layer 320 having a positive temperature effect of resistance, a lower metal electrode 310a, and an upper metal electrode 310b Protection components, as shown in Figure 3:
  • a copper-clad laminate as a substrate of the circuit protection component, has a receiving space for the protective element in the middle, and the above-mentioned protective element having a positive temperature effect of the resistor is placed on the substrate 332 of the copper-clad laminate.
  • the lower semi-cured adhesive layer 333a and the upper semi-cured adhesive layer 333b are thermocompression-bonded to the surface of the substrate 332 of the copper-clad laminate, and then the copper foil is pressed against the lower semi-cured adhesive layer 333a and
  • the lower semi-cured adhesive layer 333b is composited with the copper foil on the upper and lower sides of the substrate, and the copper foil is etched to form an upper left copper foil 350a and an upper right copper foil 350b.
  • the left and right upper copper foils 350a and 350b can be processed into External lines of various shapes;
  • a protective element having a positive temperature effect of resistance is built into the substrate 332 of the copper clad laminate, the polymer-based conductive composite layer comprising at least one polymer substrate and at least one resistivity lower than a conductive powder of 100 ⁇ cm, the conductive powder having a particle size distribution ranging from 0.1 ⁇ m to 50 ⁇ m;
  • the conductive member electrically connects the lower metal electrode 310a to the upper left copper foil 350a through the conductive member 340a.
  • the upper right metal electrode 310b is electrically connected to the upper right copper foil 350b through the conductive member 340b, so that the protection element having the positive temperature effect of the resistance is electrically connected to the protected circuit;
  • the electrical test point is disposed on the surface insulating layer of the circuit protection component, and the upper and lower surfaces of the circuit protection component are respectively covered with the upper and lower insulating varnishes 331b and 331a to prevent electrical contact between the other components and the external circuit, and
  • the electrical test points one, two 360a, 360b expose the surface of the insulating varnish layer 331b, respectively, on the left and right upper copper foils 350a, 350b, which are not covered by the insulating varnish layer, electroplating, spraying, electroless plating a columnar electrical test point formed of a layer of conductive material, wherein electrical test point 360a is electrically connected to upper left copper foil 350a, electrical test point two 360b is electrically connected to upper right copper foil 350b, and said protective element having positive temperature effect of resistance Electrical connections.
  • a circuit protection component having an external electrical test point similar to Embodiment 1, comprising a positive temperature effect protection consisting of a conductive composite base layer 420 having a positive temperature effect of resistance, a lower metal electrode 410a and an upper metal electrode 410b Components, as shown in Figure 4:
  • a copper-clad laminate as a substrate of the circuit protection component, has a receiving space for the protective component in the middle, and the above-mentioned protective component having a positive temperature effect of the resistor is disposed on the copper-clad laminate substrate 432 accommodating space.
  • the lower semi-cured adhesive layer 433a and the upper semi-cured adhesive layer 433b are thermocompression-bonded to the surface of the copper-clad laminate substrate 432, and then composited with the copper foil to etch the copper foil to form a copper foil.
  • a protective element having a positive temperature effect of resistance is built in the copper clad laminate substrate, the polymer-based conductive composite layer comprising at least one polymer substrate and at least one resistivity lower than a conductive powder of 100 ⁇ cm, the conductive powder having a particle size distribution ranging from 0.1 ⁇ m to 50 ⁇ m;
  • the conductive members one, two 440a, 440b electrically connect the upper metal electrode 410b to the copper foil 220b through the conductive member 244b, and electrically connect the lower metal electrode 410a to the copper foil 450a through the conductive member 440a.
  • the copper foil 450b and the copper foil three 450c are electrically connected by the conductive member 340c, so that the protective element having the positive temperature effect of the resistance is electrically connected to the protected circuit;
  • electrical test points one, two 460a and 460b are disposed on the surface insulating layer of the circuit protection component, and the surface of the circuit protection component is respectively covered with an insulating varnish layer 431b and a lower insulating varnish layer 431a to prevent other components from being
  • the external circuit is electrically contacted, and an identifier can be printed thereon, and the surface of the upper insulating varnish layer 431b is exposed to the electrical test points one, two 460a, 460b, and is not covered by the insulating varnish layer 431b on the copper foil one, two 450a, 450b.
  • An electrical test point formed by electroplating, spraying, or electroless plating a layer of conductive material is electrically connected to the protective element having a positive temperature effect of the resistor.
  • the copper foils one, two, and three 450a, 450b, and 450c can be processed into external circuits of various shapes.
  • the electrical test point 460a is electrically connected to the copper foil 450a, and the electrical test point 460b is electrically connected to the copper foil 450b.
  • Electrical test points 1 and 2 460a, 460b may also be portions of copper foil one, two 450a, 450b that are not covered by insulating varnish.

Abstract

一种具有外部电气测试点的电路保护组件,包含覆铜箔层压板、具有电阻正温度效应的保护元件、导电部件和电气测试点,其中具有电阻正温度效应的保护元件内置于所述覆铜层压板中,其由两个金属电极片(210a、210b、310a、310b、410a、410b)间紧密夹固聚合物基导电复合材料层(220、320、420)构成,所述聚合物基导电复合材料层(220、320、420)包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间;导电部件,使所述具有电阻正温度效应的保护元件和被保护电路电气连接,通过电气测试点能够检测具有电阻正温度效应的保护元件的电气特性。该电路保护组件可以节省电路保护元件的安装空间,且具有良好的可检测性和环境可靠性。

Description

具有外部电气测试点的电路保护组件 技术领域
本发明涉及一种具有外部电气测试点的电路保护组件,属高分子电子元器件,尤其是一种将具有电阻正温度效应的保护元件内置于覆铜箔层压板中,并且具有外部电气测试点的电路保护组件。
背景技术
聚合物基导电复合材料在正常温度下可维持较低的电阻值,具有对温度变化反应敏锐的特性,即当电路中发生过电流或过高温现象时,其电阻会瞬间增加到一高阻值,使电路处于断路状态,以达到保护电路元件的目的。因此可把聚合物基导电复合材料制备的保护元件连接到电路中,作为电流传感元件的材料。此类材料已被广泛应用于电子线路保护元器件上。
随着智能移动终端的发展,电子元器件大电流和小型化是发展的趋势。然而,传统的装配在线路板表面的电路保护元件受到越来越有限的空间限制,如需进一步提升性能时,空间的限制致使其性能提升及其有限,如果将电路保护元件内置于覆铜箔层压板内部,既可以大幅减小电路保护元件厚度带来的影响,又给电路保护元件的面积带来较大的可设计空间。并且,电路保护元件被密封在覆铜箔层压板内部,很大程度上降低了外界环境对其的影响,因此具有较好的环境可靠性。但是,一旦电路中出现故障,无法检测到内置于覆铜箔层压板内部的电路保护元件的电气特性,造成故障点无法确认。另外,在电子元器件装配过程中,有时需要进行电气性能分选。因此在此类内置式器件的表面设置测试点,可以确认是否是内置元件出现了故障,也可以给电子元器件电气性能分选带来方便。
于是本申请人申请号2016109037960提供了一种电路保护组件,包含由两个金属电极片间紧密夹固的聚合物基导电复合材料层所构成的具有电阻正温度效应的保护元件,一覆铜箔层压板,中间有通孔,所述的保护元件设在通孔内,该覆铜箔层压板作为所述电路保护组件的基板上下表面设有胶粘层,将所述的保护元件包覆在覆铜箔层压板与上下胶粘层构成的空间内;通过导电部件使所述具有电阻正温度效应的保护元件和被保护电路电气连接;其中,所述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间。该发明电路保护组件可以节省电路保护元件的安装空间,且具有良好的环境可靠性。但无法即时了解具有电阻正温度效应的保护元件。
发明内容
本发明目的在于:提供一种具有外部电气测试点的电路保护组件,在适应电路保护器件小型化要求的同时,提高电路保护器件的环境可靠性及可检测性。
本发明的再一目的在于:提供上述具有外部电气测试点的电路保护组件的制造方法。
本发明目的通过下述方案实现:一种具有外部电气测试点的电路保护组件,包含由两个金属电极片间紧密夹固聚合物基导电复合材料层构成的具有电阻正温度效应的保护元件,还包含:
(a)覆铜箔层压板,作为所述电路保护组件的基板,中间有保护元件的容置空间,所述的具有电阻正温度效应的保护元件设在容置空间内,在基板上下经胶粘层与铜箔复合;
(b)具有电阻正温度效应的保护元件,内置于所述的覆铜层压板中,所述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间;
(c)导电部件,使所述具有电阻正温度效应的保护元件和被保护电路电气连接;
(d)电气测试点,设置于所述电路保护组件的表面绝缘层上,为未被绝缘层覆盖部,或在未被上绝缘层覆盖部分上电镀、喷涂、化学镀上一层导电材料形成的电气测试点,与所述具有电阻正温度效应的保护元件电气连接。
本发明将电路保护元件内置于覆铜箔层压板内部,既可减小具有电阻正温度效应的保护元件厚度,又可降低外界环境对其的影响,具有优异的环境可靠性。另外,通过设置在电路保护组件表面的电气测试点可以方便的检测出被置于电路保护组件内部的具有正温度效应的保护元件的电气特性。通过所述导电部件将所述具有电阻正温度效应的保护元件串接于被保护电路中形成导电通路。
在上述方案基础上,所述覆铜板层压板为单层、双层或多层基板,基板经胶粘层与铜箔复合,所述的基板为纸基覆铜箔层压板、玻璃纤维布基覆铜箔层压板、复合基覆铜箔层压板、积层多层板基覆铜箔层压板或陶瓷基覆铜箔层压板中的一种或组合。
在上述方案基础上,所述的胶粘层采用酚醛树脂、环氧树脂、聚酯树脂、双马来酰亚胺改性三嗪树脂、聚酰亚胺树脂、二亚苯基醚树脂、马来酸酐亚胺-苯乙烯树脂、聚氰酸酯树脂、聚烯烃树脂中的一种或其组合。
在上述方案基础上,所述导电粉末选自:碳系导电粉末、金属粉末、导电陶瓷粉末中的一种或其二种以上的混合物。
在上述方案基础上,所述碳系导电粉末为:碳黑、碳纤维、碳纳米管、石墨、石墨烯及它们的混合物;
所述金属粉末为:铜、镍、钴、铁、钨、锡、铅、银、金、铂或其合金中的一种及其混合物;
所述导电陶瓷粉末为:金属氮化物、金属碳化物、金属硼化物、金属硅化物、层状结构陶瓷粉之中的一种或几种的混合物;
在上述方案基础上,所述金属硼化物为硼化钽、二硼化钽、硼化钒、二硼化钒、二硼化锆、二硼化钛、硼化铌、二硼化铌、硼化二钼、五硼化二钼、二硼化铪、硼化二钨、硼 化钨、硼化二铬、硼化铬、二硼化铬或三硼化五铬之中的一种。
在上述方案基础上,所述金属氮化物为氮化钽、氮化钒、氮化锆、氮化钛、氮化铌或氮化铪中的一种。
在上述方案基础上,所述金属碳化物为碳化钽、碳化钒、碳化锆、碳化钛、碳化铌、碳化二钼、碳化铪、碳化钨、碳化二钨或二碳化三铬之中的一种。
在上述方案基础上,所述金属硅化物为二硅化钽、三硅化五钽、硅化三钒、二硅化钒、二硅化锆、二硅化钛、三硅化五钛、二硅化铌、二硅化钼、二硅化铪、二硅化钨、硅化三铬或二硅化铬之中的一种。
在上述方案基础上,所述层状结构陶瓷粉为Sc2InC、Ti2AlC、Ti2GaC、Ti2InC、Ti2TlC、V2AlC、V2GaC、Cr2GaC、Ti2AlN、Ti2GaN、Ti2InN、V2GaN、Cr2GaN、Ti2GeC、Ti2SnC、Ti2PbC、V2GeC、Cr2SiC、Cr2GeC、V2PC、V2AsC、Ti2SC、Zr2InC、Zr2TlC、Nb2AlC、Nb2GaC、Nb2InC、Mo2GaC、Zr2InN、Zr2TlN、Zr2SnC、Zr2PbC、Nb2SnC、Nb2PC、Nb2AsC、Zr2SC、Nb2SC、Hf2SC、Hf2InC、Hf2TlC、Ta2AlC、Ta2GaC、Hf2SnC、Hf2PbC、Hf2SnN、Ti3AlC2、V3AlC2、Ta3AlC2、Ti3SiC2、Ti3GeC2、Ti3SnC2、Ti4AlN3、V4AlC3、Ti4GaC3、Nb4AlN3、Ta4AlC3、Ti4SiC3、Ti4GeC3之中的一种及其混合物。
在上述方案基础上,所述的导电部件的形状是点状、线状、带状、层片状、柱状、圆形通孔、半圆通孔、弧形通孔、盲孔、其他不规则形状及它们的组合体。导电部件基材为镍、铜、铝、锌、锡、铋、铟、银、金中的一种及它们的合金。
在上述方案基础上,所述电气测试点的个数为2个或2个以上,选用基材为:镍、铜、铝、锌、锡、铋、铟、银、金中的一种及它们的合金。
在上述方案基础上,所述的电气测试点位于所述电路保护组件的同一表面或者不同表面。
在上述方案基础上,所述电气测试点形状为圆点状、线状、带状、三角形状、多边形状、其他不规则形状及他们的组合体。
在上述方案基础上,所述聚合物基材为:聚乙烯、氯化聚乙烯、氧化聚乙烯、聚氯乙烯、丁二烯-丙烯腈共聚物、丙烯腈-丁二烯-苯乙烯共聚物、聚苯乙烯、聚碳酸酯、聚酰胺、聚酰亚胺、聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚苯醚、聚苯硫醚、聚甲醛、酚醛树脂、聚四氟乙烯、四氟乙烯-六氟丙烯共聚物、聚三氟乙烯、聚氟乙烯、马来酸酐接枝聚乙烯、聚丙烯、聚偏氟乙烯、环氧树脂、乙烯-醋酸乙烯共聚物、聚甲基丙烯酸甲酯、乙烯-丙烯酸共聚物中的一种及其混合物。
本发明提供一种所述的电路保护组件的制造方法,依下述步骤:
第一,以覆铜箔层压板作为具有电阻正温度效应的保护元件的保护基板,将由具有电阻正温度效应的聚合物导电复合材料基层、下金属电极和上金属电极组成具有电阻正温度 效应的保护元件置于覆铜箔层压板的基材中,将半固化胶粘层热压合在覆铜箔层压板的基材的表面,然后将铜箔压合在半固化胶粘层上,对铜箔进行刻蚀,至少在上表面形成左、右上铜箔;
第二,具有电阻正温度效应的保护元件,内置于所述的覆铜层压板中,上述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间;
第三,所述的导电部件有三个,一导电部件将上金属电极与一侧上铜箔电气连接,另一导电部件将下金属电极与下铜箔电气连接;第三导电部件将下铜箔与另一侧上铜箔通过电气连接;
第四,所述的电气测试点有二个,置于所述电路保护组件的上表面,通过左右上铜箔与所述具有电阻正温度效应的保护元件电气连接,所述的二个电气测试点分别是左上铜箔和右上铜箔上未被上绝缘层覆盖的部分,形状为圆点状、线状、带状、三角形状、多边形状、或者他们的组合体。
或者,所述的导电部件有二个,通过一导电部件将下金属电极与左上铜箔电气连接,通过另一导电部件将右上金属电极与右上铜箔电气连接,使所述具有电阻正温度效应的保护元件和被保护电路电气连接。
或者,所述的导电部件有三个,将上金属电极通过一导电部件与一侧上铜箔电气连接,将下金属电极通过另一导电部件与另一侧上铜箔电气连接,再将下铜箔通过第三导电部件与上金属电极电气连接,使所述具有电阻正温度效应的保护元件和被保护电路电气连接。
本发明优越性在于:将电路保护元件内置于覆铜箔层压板内部,既可以大幅减小电路保护元件厚度带来的影响,又给电路保护元件的面积带来较大的可设计空间。并且,电路保护元件被密封在覆铜箔层压板内部,很大程度上降低了外界环境对其的影响,具有优异的环境可靠性。另外,通过设置在电路保护组件表面的电气测试点可以方便的检测出被置于电路保护组件内部的具有正温度效应的保护元件的电气特性。
附图说明
图1本发明的具有电阻正温度效应的保护元件示意图;
图2本发明第1实施例的剖面结构示意图;
图3本发明第2实施例的剖面结构示意图;
图4本发明第3实施例的剖面结构示意图;
图中标号说明:
图1中:
110a——下金属电极片;110b——上金属电极片;
120——导电复合材料基层;
图2中:
210a——下金属电极;210b——上金属电极;
220——导电复合材料基层;
231a——下绝缘漆层;231b——上绝缘漆层;
232——覆铜箔层压板的基材;
233a——下半固化胶粘层;233b——上半固化胶粘层;
240a、240b、240c——导电部件一、二、三;
250a、250b、250c——铜箔一、二、三;
260a、260b——电气测试点一、二;
图3中:
320——导电复合材料基层;
310a——下金属电极;310b——上金属电极;
331b——上绝缘漆层;331a——下绝缘漆层;
332——覆铜箔层压板基材;
333a——下半固化胶粘层;333b——上半固化胶粘层;
340a、340b——导电部件一、二;
350a、350b——铜箔一、二;
360a、360b——电气测试点一、二;
图4中:
420——导电复合材料基层;
410a——下金属电极;410b——上金属电极;
431b——上绝缘漆层;431a——下绝缘漆层;
432——覆铜箔层压板基材;
433a——下半固化胶粘层;433b——上半固化胶粘层;
440a、440b、——导电部件一、二、三;
450a、450b、450c——铜箔一、二、三;
460a、460b——电气测试点一、二。
具体实施方式
对于本发明的电路保护组件,其具体实施方式如下:
一、具有电阻正温度效应的保护元件的制作
由两个金属电极片间紧密夹固聚合物基导电复合材料层构成的具有电阻正温度效应的保护元件,其中,所述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间。
所述聚合物基材为:聚乙烯、氯化聚乙烯、氧化聚乙烯、聚氯乙烯、丁二烯-丙烯腈共聚物、丙烯腈-丁二烯-苯乙烯共聚物、聚苯乙烯、聚碳酸酯、聚酰胺、聚酰亚胺、聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚苯醚、聚苯硫醚、聚甲醛、酚醛树脂、聚四氟乙烯、四氟乙烯-六氟丙烯共聚物、聚三氟乙烯、聚氟乙烯、马来酸酐接枝聚乙烯、聚丙烯、聚偏氟乙烯、环氧树脂、乙烯-醋酸乙烯共聚物、聚甲基丙烯酸甲酯、乙烯-丙烯酸共聚物中的一种及其混合物。
所述导电粉末选自:碳系导电粉末、金属粉末、导电陶瓷粉末中的一种或其二种以上的混合物,该导电粉末满足电阻率低于100μΩ.cm,粒径分布范围在0.1μm~50μm之间。
将聚合物、导电粉末目前通用的PTC基材的配方配料。将密炼机温度设定为180度,转速为30转/分钟,先加入聚合物密炼3分钟后,然后加入导电填料,继续密炼15分钟后出料,得到具有电阻正温度效应的导电复合材料。
将上述熔融混合好的具有电阻正温度效应的导电复合材料通过开炼机压延,得到厚度为0.20-0.25毫米的具有电阻正温度效应的导电复合材料基层120,如图1。
将具有电阻正温度效应的导电复合材料基层120,按图1所示置于两层金属电极片110a和110b之间,金属电极片110a和110b的粗糙面与具有电阻正温度效应的导电复合材料基层120紧密结合。通过热压合的方法将上述三层叠好紧密结合在一起。热压合的温度为180摄氏度,压力为12兆帕,时间为10分钟,最后在冷压机上冷压10分钟,得到将具有电阻正温度效应的芯片。
将具有电阻正温度效应的芯片经过冲压或划片,制成合适大小的图1所示的具有电阻正温度效应的保护元件。
二、制作如下的电路保护组件。
实施例1
一种电路保护组件,包含上述由两个金属电极片间紧密夹固聚合物基导电复合材料层构成的具有电阻正温度效应的保护元件,还包含:如图2所示,
第一,覆铜箔层压板,作为所述电路保护组件的基板,中间有保护元件的容置空间,上述的由具有电阻正温度效应的导电复合材料基层220、下金属电极210a和上金属电极210b组成的具有电阻正温度效应的保护元件,置于覆铜箔层压板的基材232中容置空间内,将半固化胶粘层233a和233b热压合在覆铜箔层压板的基材232的上下表面,然后将铜箔压合在半固化层上,对铜箔进行刻蚀,形成左上铜箔250c、右上铜箔250b和下铜箔250a;
第二,具有电阻正温度效应的保护元件,内置于所述的覆铜层压板中,上述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉 末,所述导电粉末粒径分布范围在0.1μm~50μm之间;
第三,导电部件,使上述具有电阻正温度效应的保护元件和被保护电路电气连接,将上金属电极210b通过导电部件二240b与右上铜箔250b电气连接,下金属电极210a通过导电部件一240a与下铜箔250a电气连接,将下铜箔250a与左上铜箔250c通过导电部件三240c电气连接,另外,下铜箔250a和右上铜箔250b也可以加工成各种形状的外部线路,所述的导电部件的形状是圆形通孔,也可以是点状、线状、带状、层片状、柱状、半圆通孔、弧形通孔、盲孔、其他不规则形状及它们的组合体;
第四,电气测试点个数为2个,置于所述电路保护组件的上表面,与所述具有电阻正温度效应的保护元件电气连接,电气测试点选用基材为:镍、铜、铝、锌、锡、铋、铟、银、金中的一种及它们的合金。电气测试点制法:
在电路保护组件的上下表面分别覆盖一层上绝缘漆层231b和下绝缘漆层231a,防止其它元件与外部线路电气接触,电气测试点一、二260a、260b设在电路保护组件的上表面,分别是左上铜箔250c和右上铜箔250b上未被上绝缘漆层231b覆盖的部分,所述电气测试点一、二形状为圆点状,也可以是线状、带状、三角形状、多边形状、其他不规则形状及他们的组合体。电气测试点一260a与左上铜箔250c电气连接,电气测试点二260b与右上铜箔250b电气连接。通过此电器测试点可以检测所述具有电阻正温度效应的保护元件的电气特性。
可在绝缘漆层上印刷标识符。
本实施例中所述覆铜板层压板为单层、双层或多层基板,基板经胶粘层与铜箔复合,所述的基板为纸基覆铜箔层压板、玻璃纤维布基覆铜箔层压板、复合基覆铜箔层压板、积层多层板基覆铜箔层压板或陶瓷基覆铜箔层压板中的一种或组合。
半固化胶粘层采用酚醛树脂、环氧树脂、聚酯树脂、双马来酰亚胺改性三嗪树脂、聚酰亚胺树脂、二亚苯基醚树脂、马来酸酐亚胺-苯乙烯树脂、聚氰酸酯树脂、聚烯烃树脂中的一种或其组合。
所述导电粉末选自:碳系导电粉末、金属粉末、导电陶瓷粉末中的一种或其二种以上的混合物。
所述碳系导电粉末为:碳黑、碳纤维、碳纳米管、石墨、石墨烯及它们的混合物。
所述金属粉末为:铜、镍、钴、铁、钨、锡、铅、银、金、铂或其合金中的一种及其混合物。
所述导电陶瓷粉末为:金属氮化物、金属碳化物、金属硼化物、金属硅化物、层状结构陶瓷粉之中的一种或几种的混合物。其中,
所述金属硼化物为硼化钽、二硼化钽、硼化钒、二硼化钒、二硼化锆、二硼化钛、硼化铌、二硼化铌、硼化二钼、五硼化二钼、二硼化铪、硼化二钨、硼化钨、硼化二铬、硼 化铬、二硼化铬或三硼化五铬之中的一种。
所述金属氮化物为氮化钽、氮化钒、氮化锆、氮化钛、氮化铌或氮化铪中的一种。
所述金属碳化物为碳化钽、碳化钒、碳化锆、碳化钛、碳化铌、碳化二钼、碳化铪、碳化钨、碳化二钨或二碳化三铬之中的一种。
所述金属硅化物为二硅化钽、三硅化五钽、硅化三钒、二硅化钒、二硅化锆、二硅化钛、三硅化五钛、二硅化铌、二硅化钼、二硅化铪、二硅化钨、硅化三铬或二硅化铬之中的一种。
所述层状结构陶瓷粉为Sc2InC、Ti2AlC、Ti2GaC、Ti2InC、Ti2TlC、V2AlC、V2GaC、Cr2GaC、Ti2AlN、Ti2GaN、Ti2InN、V2GaN、Cr2GaN、Ti2GeC、Ti2SnC、Ti2PbC、V2GeC、Cr2SiC、Cr2GeC、V2PC、V2AsC、Ti2SC、Zr2InC、Zr2TlC、Nb2AlC、Nb2GaC、Nb2InC、Mo2GaC、Zr2InN、Zr2TlN、Zr2SnC、Zr2PbC、Nb2SnC、Nb2PC、Nb2AsC、Zr2SC、Nb2SC、Hf2SC、Hf2InC、Hf2TlC、Ta2AlC、Ta2GaC、Hf2SnC、Hf2PbC、Hf2SnN、Ti3AlC2、V3AlC2、Ta3AlC2、Ti3SiC2、Ti3GeC2、Ti3SnC2、Ti4AlN3、V4AlC3、Ti4GaC3、Nb4AlN3、Ta4AlC3、Ti4SiC3、Ti4GeC3之中的一种及其混合物。
所述聚合物基材为:聚乙烯、氯化聚乙烯、氧化聚乙烯、聚氯乙烯、丁二烯-丙烯腈共聚物、丙烯腈-丁二烯-苯乙烯共聚物、聚苯乙烯、聚碳酸酯、聚酰胺、聚酰亚胺、聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚苯醚、聚苯硫醚、聚甲醛、酚醛树脂、聚四氟乙烯、四氟乙烯-六氟丙烯共聚物、聚三氟乙烯、聚氟乙烯、马来酸酐接枝聚乙烯、聚丙烯、聚偏氟乙烯、环氧树脂、乙烯-醋酸乙烯共聚物、聚甲基丙烯酸甲酯、乙烯-丙烯酸共聚物中的一种及其混合物。
实施例2
一种具有外部电气测试点的电路保护组件,与实施例1近似,包含由由具有电阻正温度效应的导电复合材料基层320、下金属电极310a和上金属电极310b组成的具有电阻正温度效应的保护元件,如图3所示:
第一,覆铜箔层压板,作为所述电路保护组件的基板,中间有保护元件的容置空间,上述的具有电阻正温度效应的保护元件置于覆铜箔层压板的基材332容置空间内,将下半固化胶粘层333a和上半固化胶粘层333b热压合在覆铜箔层压板的基材332的表面,然后,将铜箔压合在下半固化胶粘层333a和下半固化胶粘层333b上,在基板上下经胶粘层与铜箔复合,对铜箔进行刻蚀,形成左上铜箔350a、右上铜箔350b,左、右上铜箔350a、350b可以加工成各种形状的外部线路;
第二,具有电阻正温度效应的保护元件,内置于覆铜箔层压板的基材332中,所述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间;
第三,导电部件,将下金属电极310a通过导电部件一340a与左上铜箔350a电气连 接,将右上金属电极310b通过导电部件二340b与右上铜箔350b电气连接,使所述具有电阻正温度效应的保护元件和被保护电路电气连接;
第四,电气测试点,设置于所述电路保护组件的表面绝缘层上,在电路保护组件的上下表面分别覆盖上、下绝缘漆331b、331a,防止其它元件与外部线路电气接触,并可在其上印刷标识符,电气测试点一、二360a、360b露出上绝缘漆层331b表面,分别是左、右上铜箔350a、350b上未被绝缘漆层覆盖的部分上电镀、喷涂、化学镀上一层导电材料形成的柱状电气测试点,其中,电气测试点一360a与左上铜箔350a电气连接,电气测试点二360b与右上铜箔350b电气连接,与所述具有电阻正温度效应的保护元件电气连接。
实施例3
一种具有外部电气测试点的电路保护组件,与实施例1近似,包含由具有电阻正温度效应的导电复合材料基层420、下金属电极410a和上金属电极410b组成的具有电阻正温度效应的保护元件,如图4所示:
第一,覆铜箔层压板,作为所述电路保护组件的基板,中间有保护元件的容置空间,上述的具有电阻正温度效应的保护元件设在覆铜箔层压板基材432容置空间内,将下半固化胶粘层433a和上半固化胶粘层433b热压合在覆铜箔层压板基材432的表面,然后与铜箔复合,对铜箔进行刻蚀,形成铜箔一、二、三450a、450b、450c;
第二,具有电阻正温度效应的保护元件,内置于所述的覆铜层压板基材中,所述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间;
第三,导电部件一、二440a、440b,将上金属电极410b通过导电部件二440b与铜箔二450b电气连接,将下金属电极410a通过导电部件一440a与铜箔一450a电气连接,再将铜箔二450b和铜箔三450c通过导电部件三440c电气连接,使所述具有电阻正温度效应的保护元件和被保护电路电气连接;
第四,电气测试点一、二460a和460b,设置于所述电路保护组件的表面绝缘层上,在电路保护组件的表面分别覆盖上绝缘漆层431b和下绝缘漆层431a,防止其它元件与外部线路电气接触,并可在其上印刷标识符,上绝缘漆层431b表面露出电气测试点一、二460a、460b,为在铜箔一、二450a、450b未被上绝缘漆层431b覆盖部分上电镀、喷涂、化学镀上一层导电材料形成的电气测试点,与所述具有电阻正温度效应的保护元件电气连接。
铜箔一、二、三450a、450b、450c可以加工成各种形状的外部线路。
其中电气测试点一460a与铜箔一450a电气连接,电气测试点二460b与铜箔二450b电气连接。
电气测试点一、二460a、460b也可以分别是铜箔一、二450a、450b上未被绝缘漆覆盖的部分。
本发明的内容和特点已揭示如上,然而前面叙述的本发明仅仅简要地或只涉及本发明的特定部分,本发明的特征可能比在此公开的内容涉及的更多。因此,本发明的保护范围应不限于实施例所揭示的内容,而应该包括在不同部分中所体现的所有内容的组合,以及各种不背离本发明的替换和修饰,并为本发明的权利要求书所涵盖。

Claims (12)

  1. 一种具有外部电气测试点的电路保护组件,包含由两个金属电极片间紧密夹固聚合物基导电复合材料层构成的具有电阻正温度效应的保护元件,其特征在于:还包含:
    (a)覆铜箔层压板,作为所述电路保护组件的基板,中间有保护元件的容置空间,所述的具有电阻正温度效应的保护元件设在容置空间内,在基板上下经胶粘层与铜箔复合;
    (b)具有电阻正温度效应的保护元件,内置于所述的覆铜层压板中,所述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间;
    (c)导电部件,使所述具有电阻正温度效应的保护元件和被保护电路电气连接;
    (d)电气测试点,设置于所述电路保护组件的表面绝缘层上,为未被绝缘层覆盖部,或在未被上绝缘层覆盖部分上电镀、喷涂、化学镀上一层导电材料形成的电气测试点,与所述具有电阻正温度效应的保护元件电气连接。
  2. 根据权利要求1所述的具有外部电气测试点的电路保护组件,其特征在于:所述覆铜板层压板为单层、双层或多层基板,基板经胶粘层与铜箔复合,所述的基板为纸基覆铜箔层压板、玻璃纤维布基覆铜箔层压板、复合基覆铜箔层压板、积层多层板基覆铜箔层压板或陶瓷基覆铜箔层压板中的一种或组合。
  3. 根据权利要求1或2所述的具有外部电气测试点的电路保护组件,其特征在于:所述的胶粘层采用酚醛树脂、环氧树脂、聚酯树脂、双马来酰亚胺改性三嗪树脂、聚酰亚胺树脂、二亚苯基醚树脂、马来酸酐亚胺-苯乙烯树脂、聚氰酸酯树脂、聚烯烃树脂中的一种或其组合。
  4. 根据权利要求1所述的具有外部电气测试点的电路保护组件,其特征在于:所述导电粉末选自:碳系导电粉末、金属粉末、导电陶瓷粉末中的一种或其二种以上的混合物。
  5. 根据权利要求4所述的具有外部电气测试点的电路保护组件,其特征在于:
    所述碳系导电粉末为:碳黑、碳纤维、碳纳米管、石墨、石墨烯及它们的混合物;所述金属粉末为:铜、镍、钴、铁、钨、锡、铅、银、金、铂或其合金中的一种及其混合物;
    所述导电陶瓷粉末为:金属氮化物、金属碳化物、金属硼化物、金属硅化物、层状结构陶瓷粉之中的一种或几种的混合物。
  6. 根据权利要求1所述的具有外部电气测试点的电路保护组件,其特征在于:所述的导电部件的形状是点状、线状、带状、层片状、柱状、圆形通孔、半圆通孔、弧形通孔、盲孔、其他不规则形状及它们的组合体。
  7. 根据权利要求1所述的具有外部电气测试点的电路保护组件,其特征在于所述电气测试点的个数为2个或2个以上,选用基材为:镍、铜、铝、锌、锡、铋、铟、银、金中的一种及它们的合金。
  8. 根据权利要求1或7所述的具有外部电气测试点的电路保护组件,其特征在于,所述的电气测试点位于所述电路保护组件的同一表面或者不同表面。
  9. 根据权利要求8所述的具有外部电气测试点的电路保护组件,其特征在于,所述电气测试点形状为圆点状、线状、带状、三角形状、多边形状、其他不规则形状及他们的组合体。
  10. 根据权利要求1至9之任一项所述的具有外部电气测试点的电路保护组件的制造方法,其特征在于,依下述步骤:
    第一,以覆铜箔层压板作为具有电阻正温度效应的保护元件的保护基板,将由具有电阻正温度效应的聚合物导电复合材料基层、下金属电极和上金属电极组成具有电阻正温度效应的保护元件置于覆铜箔层压板的基材中,将半固化胶粘层热压合在覆铜箔层压板的基材的表面,然后将铜箔压合在半固化胶粘层上,对铜箔进行刻蚀,至少在上表面形成左、右上铜箔;
    第二,具有电阻正温度效应的保护元件,内置于所述的覆铜层压板中,上述聚合物基导电复合材料层包含至少一种聚合物基材和至少一种电阻率低于100μΩ.cm的导电粉末,所述导电粉末粒径分布范围在0.1μm~50μm之间;
    第三,所述的导电部件有三个,一导电部件将上金属电极与一侧上铜箔电气连接,另一导电部件将下金属电极与下铜箔电气连接;第三导电部件将下铜箔与另一侧上铜箔通过电气连接;
    第四,所述的电气测试点有二个,置于所述电路保护组件的上表面,通过左右上铜箔与所述具有电阻正温度效应的保护元件电气连接,所述的二个电气测试点分别是左上铜箔和右上铜箔上未被上绝缘层覆盖的部分,形状为圆点状、线状、带状、三角形状、多边形状、或者他们的组合体。
  11. 根据权利要求10所述的具有外部电气测试点的电路保护组件的制造方法,其特征在于,所述的导电部件有二个,通过一导电部件将下金属电极与左上铜箔电气连接,通过另一导电部件将右上金属电极与右上铜箔电气连接,使所述具有电阻正温度效应的保护元件和被保护电路电气连接。
  12. 根据权利要求10所述的具有外部电气测试点的电路保护组件的制造方 法,其特征在于,所述的导电部件有三个,将上金属电极通过一导电部件与一侧上铜箔电气连接,将下金属电极通过另一导电部件与另一侧上铜箔电气连接,再将下铜箔通过第三导电部件与上金属电极电气连接,使所述具有电阻正温度效应的保护元件和被保护电路电气连接。
PCT/CN2017/071220 2016-12-20 2017-01-16 具有外部电气测试点的电路保护组件 WO2018113059A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109243667A (zh) * 2018-08-17 2019-01-18 上海长园维安电子线路保护有限公司 高分子基导电复合材料及过流保护元件
CN115244631A (zh) * 2020-02-25 2022-10-25 力特保险丝公司 具有稳定功率和自限制特性的pptc加热器和材料

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1714413A (zh) * 2002-12-11 2005-12-28 伯恩斯公司 导电聚合物器件以及制造该器件的方法
CN101000817A (zh) * 2006-01-10 2007-07-18 聚鼎科技股份有限公司 表面粘着型过电流保护元件
US7273538B2 (en) * 2001-03-28 2007-09-25 Protectronics Technology Corporation Surface mountable laminated circuit protection device and method of making the same
CN103247399A (zh) * 2012-02-07 2013-08-14 聚鼎科技股份有限公司 表面粘着型热敏电阻元件
CN104992802A (zh) * 2015-02-04 2015-10-21 上海长园维安电子线路保护有限公司 表面贴装型过电流保护元件
CN206236493U (zh) * 2016-12-20 2017-06-09 上海长园维安电子线路保护有限公司 具有外部电气测试点的电路保护组件

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY103847A (en) * 1988-03-15 1993-09-30 Yamaichi Electric Mfg Laminated board for testing electronic components
JP3624395B2 (ja) * 1999-02-15 2005-03-02 株式会社村田製作所 チップ型サーミスタの製造方法
JP2000277305A (ja) * 1999-03-26 2000-10-06 Murata Mfg Co Ltd 過電流保護部品および過電流保護回路
TWI358071B (en) * 2007-05-23 2012-02-11 Polytronics Technology Corp Manufacturing method of over-current protection de
CN102522173B (zh) * 2011-12-31 2016-06-08 上海长园维安电子线路保护有限公司 电阻正温度效应导电复合材料及过电流保护元件
TWI449060B (zh) * 2012-08-14 2014-08-11 Polytronics Technology Corp 過電流保護元件
JP6119602B2 (ja) * 2013-12-26 2017-04-26 株式会社デンソー 電子装置
CN104681224A (zh) * 2015-02-04 2015-06-03 上海长园维安电子线路保护有限公司 大电流过流过温保护元件
CN104681220A (zh) * 2015-02-04 2015-06-03 上海长园维安电子线路保护有限公司 表面贴装型过电流保护元件及制造方法
CN105611713A (zh) * 2015-12-22 2016-05-25 广东欧珀移动通信有限公司 Pcb板及其制作方法
CN105427974A (zh) * 2015-12-24 2016-03-23 上海长园维安电子线路保护有限公司 高分子ptc过电流保护元件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7273538B2 (en) * 2001-03-28 2007-09-25 Protectronics Technology Corporation Surface mountable laminated circuit protection device and method of making the same
CN1714413A (zh) * 2002-12-11 2005-12-28 伯恩斯公司 导电聚合物器件以及制造该器件的方法
CN101000817A (zh) * 2006-01-10 2007-07-18 聚鼎科技股份有限公司 表面粘着型过电流保护元件
CN103247399A (zh) * 2012-02-07 2013-08-14 聚鼎科技股份有限公司 表面粘着型热敏电阻元件
CN104992802A (zh) * 2015-02-04 2015-10-21 上海长园维安电子线路保护有限公司 表面贴装型过电流保护元件
CN206236493U (zh) * 2016-12-20 2017-06-09 上海长园维安电子线路保护有限公司 具有外部电气测试点的电路保护组件

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109243667A (zh) * 2018-08-17 2019-01-18 上海长园维安电子线路保护有限公司 高分子基导电复合材料及过流保护元件
CN115244631A (zh) * 2020-02-25 2022-10-25 力特保险丝公司 具有稳定功率和自限制特性的pptc加热器和材料

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