CN101183575A - Novel plug-in thermal sensitive element with overflowing and ESD double protection and method of producing the same - Google Patents
Novel plug-in thermal sensitive element with overflowing and ESD double protection and method of producing the same Download PDFInfo
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- CN101183575A CN101183575A CNA2007101722560A CN200710172256A CN101183575A CN 101183575 A CN101183575 A CN 101183575A CN A2007101722560 A CNA2007101722560 A CN A2007101722560A CN 200710172256 A CN200710172256 A CN 200710172256A CN 101183575 A CN101183575 A CN 101183575A
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Abstract
The invention relates to a manufacture method of electronic device using conductive macromolecule polymer composite material as the main raw material, in particular to a plug-in thermosensitive element with overcurrent and ESD double protection function and the manufacture method. The plug-in thermosensitive element with overcurrent and ESD double protection function comprises macromolecule PTC core material or multilayer macromolecule PTC core material formed by laminating. The two surfaces of core material are combined with metal chaff electrodes. The outside of the core material is formed by welding leading feet. The plug-in thermosensitive element are combined with a PCT terminal electrode, PTC core material, a two-sided electrode, ESD core material and an ESD terminal electrode in sequence. The terminal electrodes and the two-sided electrode are metal chaff electrodes. The electrodes are welded with leading feet. The two-sided electrode is partially covered with the ESD core material and partially exposed out of the ESD core material. The invention has the advantages of overcurrent and ESD double protection function on one element, compact size, lower cost of the product than the sum of the two elements, and simple and convenient process.
Description
Technical field
The present invention relates to a kind of is the manufacturing of the electronic devices and components of primary raw material with conducting high polymers thing composite material, especially a kind of novel plug-in thermal sensitive element and manufacture method thereof with overcurrent and ESD double protection.
Background technology
Positive temperature coefficient overcurrent protection element (PTC) based on the macromolecule core has been widely applied in the various fields such as communication, computer, automobile, Industry Control, household electrical appliance, is applied to the overcurrent protection setting of circuit.In the normal state; electric current in the circuit is less relatively; the thermistor actuator temperature is lower; and when the big electric current that is caused by fault passes through this from the renaturation fuse; its temperature can be elevated to " shutoff " temperature suddenly; cause its resistance value to become very big, so just make circuit be in the state of a kind of approximate " open circuit ", thereby protected other elements in the circuit.And after fault was got rid of, the temperature of thermistor descended, and its resistance value can return to the low resistance state again.
Based on polymer-based ESD element since the characteristics of its low electric capacity just in the growing field popularization and application.
Electronic product develops towards direction multi-functional, miniaturization.In the effect that reduces to play of many times volume and area than big many aspect other.
Applicant of the present invention discloses a kind of surface mount device and manufacture method thereof with overcurrent and ESD double protection in its application number 200610148186.0, after making the PTC composite sheet, make the surface attaching type element by printed substrate technology.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of novel plug-in thermal sensitive element with overcurrent and ESD double protection, can on identity element, realize two kinds of functions, be electronic circuit saving very big area and volume, and cost is than low many of two kinds of element additions.
Another technical problem to be solved by this invention is to provide a kind of above-mentioned manufacture method with novel plug-in thermal sensitive element of overcurrent and ESD double protection.
The present invention solves the problems of the technologies described above the technical scheme of being taked: a kind of novel plug-in thermal sensitive element with overcurrent and ESD double protection, comprise high molecular PTC core or the layer high molecule PTC core that constitutes through lamination, core two surface recombination tinsel electrodes, outside welding pin constitutes, wherein, termination electrode, double-face electrode are the tinsel electrode, are welded with pin on the electrode, at least a portion of double-face electrode is coated with the ESD core, and has at least a portion to be exposed to outside the ESD core.
Concrete, described termination electrode, double-face electrode are respectively single, double the tinsel electrode through the surface coarsening melanism.
On the basis of such scheme, described termination electrode, its surface treated one side is compound or compound with the ESD core with the PTC core; Surface treatment has all been passed through on the double-face electrode two sides, and its one side is compound with the PTC core, and another side and ESD core are compound.
The termination electrode outside is welded with pin, is exposed on the double-face electrode outside the ESD core and is welded with pin.
Described plug-in type thermal sensitive element is encapsulated with the epoxy resin layer of curing outward.
Described PTC core is made by high molecular polymer, conductive filler, Nano filling, other fillers and processing aid, wherein:
Described high molecular polymer is a kind of or its blend in polyethylene, polypropylene, Kynoar, the polytrifluorochloroethylene;
Described conductive filler is a kind of or its combination in carbon black, graphite, carbon fiber, metal dust, the metal oxide powder;
Described Nano filling is a kind of or its combination in silicon dioxide, aluminium oxide, zinc oxide, carbon dioxide, the calcium carbonate;
Described other fillers are a kind of or its combination in potter's clay, magnesium hydroxide, aluminium hydroxide, the talcum powder;
Described processing aid comprises antioxidant, crosslinking accelerator and coupling agent, wherein, described antioxidant is phenols or aminated compounds, comprise phenolic antioxidant ANOX70, crosslinking accelerator is the polyfunctional group unsaturated compound, comprise triallyl isocyanurate, coupling agent is silane or titanate ester organic compound, comprises titanium coupling agent TCF.
Described ESD core gets by high polymer binder, conducting particles, semiconductor particle and insulating particle are mixed, wherein,
High polymer binder is a kind of or its combination in organic siliconresin, epoxy resin, the rubber;
Conducting particles is a kind of or its combination in nickel powder, hydroxyl nickel, the aluminium powder;
Semiconductor particle is a kind of or its combination in zinc oxide, barium titanate, the carborundum;
Insulating particle is a kind of or its combination in silicon dioxide, aluminium oxide, the magnesium oxide.
At above-mentioned manufacture method, comprise the steps: with novel plug-in thermal sensitive element of overcurrent and ESD double protection
The first step: high molecular polymer, conductive filler, Nano filling, other fillers and processing aid are mixed, make the PTC core;
Second step: PTC core two surfaces are compound PTC termination electrode and double-face electrode respectively, makes the PTC composite sheet, and wherein, the surface treated one side of termination electrode is compound with the PTC core;
The 3rd step: with gamma-rays (Co
60) or electron beam to irradiate crosslinked, dosage is 5～100Mrad;
The 4th step: be printed on ESD core slurry on the double-face electrode of element body by design configuration, solidify and make the ESD core, make with the obverse double-face electrode of ESD core at least a portion be coated with the ESD core, and some is exposed to outside the ESD core, ESD core surface recombination ESD termination electrode, the surface treated one side of single-side electrode is compound with the ESD core;
The 5th step: section, and each small pieces all comprises ESD core and exposed double-face electrode;
The 6th step:, be exposed to part welding pin outside the ESD core at double-face electrode in each small pieces termination electrode outside welding pin;
The 7th step: seal small pieces with epoxy resin layer, solidify the novel plug-in thermal sensitive element manufactured goods that encapsulated layer becomes to have overcurrent and ESD double protection.
Concrete, core component high molecular polymer, conductive filler, Nano filling and other fillers and processing aid are mixed in high-speed mixer, then that mixture is mixing under 100～200 ℃ of temperature, making area with mold pressing or the method extruded then is 100～1000cm
2, the core of thick 0.1～3.0mm; The method that reusable heat is pressed is compound in PTC termination electrode, double-sided metal paillon foil respectively two surfaces of above-mentioned sheet material on hot press, make composite sheet, and then with this composite sheet gamma-rays (Co
60) or electron beam to irradiate crosslinked, dosage is 5～100Mrad.Previously prepared ESD core slurry is printed on the ad-hoc location of double-face electrode sheet by design configuration by the steel mesh of holding successfully in advance, is solidified into the ESD core, paste the ESD termination electrode that distinctive appearance was handled in ESD core top again, form composite core material.With scribing machine composite core material is divided into rectangular-shaped pieces, by the inserted sheet welding procedure, welding pin on PTC termination electrode, ESD termination electrode and exposed double-face electrode respectively, encapsulated layer is sealed, solidified to last epoxy.
On the basis of such scheme, the multilayer PTC core of PTC core described in second step for most sheet PTC cores are made through lamination.
On the basis of such scheme, most mutual disjunct ESD core pulp layers are printed in comprising by the design configuration printing described in the 4th step.
On the basis of such scheme, the ESD termination electrode described in the 4th step is the termination electrode sheet, and it is provided with termination electrode in the corresponding position with ESD core zone, and remainder is not established termination electrode.That is to say that the ESD termination electrode is carried out special profile to be handled, the corresponding electrode that can't touch ESD slurry printing zone is emptied, the shape of termination electrode and ESD slurry printing zone are fitted like a glove.
On the basis of such scheme, in the preparation process of ESD core, can with high speed agitator polymeric adhesive be stirred earlier, add conducting particles, semiconductor particle, insulating particle then successively.
The invention has the beneficial effects as follows: temperature-sensitive element of the present invention realizes having overcurrent and ESD double protection function on identity element, is electronic circuit saving very big area and volume, and cost is than low many of two kinds of element additions; In addition, compare the surface attaching type temperature-sensitive element of making by printed substrate technology, technology is more easy.
Description of drawings
Fig. 1 uses schematic diagram of the present invention in the circuit design.
Fig. 2 is the layer structure schematic diagram of PTC core combination electrode of the present invention.
Fig. 3 is the layer structure schematic diagram of novel plug-in type temperature-sensitive element of the present invention.
Fig. 4 is the pin Welding Structure schematic diagram of novel plug-in type temperature-sensitive element of the present invention.
Fig. 5 has the structural representation of the novel plug-in type temperature-sensitive element of multilayer PTC core for the present invention.
Label declaration in the accompanying drawing
1-PTC termination electrode 2,2 '-PTC core
3,3 '-double-face electrode 4-printing zone
5-ESD core 6, the 7-line of cut
8- ESD termination electrode 9,10, the 11-pin
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
See also Fig. 1 for using shown in the schematic diagram of the present invention in the circuit design, wherein, dotted line inside is divided into the plug-in type thermal sensitive element that the present invention has overcurrent and ESD double protection.
See also the layer structure schematic diagram of Fig. 2 for PTC core combination electrode of the present invention, Fig. 3 is the layer structure schematic diagram of novel plug-in type temperature-sensitive element of the present invention, and Fig. 4 is the pin Welding Structure schematic diagram of novel plug-in type temperature-sensitive element of the present invention.
As Fig. 3, a kind of novel plug-in thermal sensitive element with overcurrent and ESD double protection, comprise high molecular PTC core 2,2 liang of surface recombination tinsels of PTC core electrode, outside welding pin constitutes, wherein, described temperature-sensitive element, be compounded with PTC termination electrode 1 successively, PTC core 2, double-face electrode 3, ESD core 5 and ESD termination electrode 8, described PTC termination electrode 1, ESD termination electrode 8 is the surface treated tinsel electrode of single face, and double-face electrode 3 is two-sided all surface treated tinsel electrode respectively, wherein, as shown in Figure 2, the part of double-face electrode 3 is coated with ESD core 5, and has at least a portion double-face electrode 3 to be exposed to outside the ESD core 5.
As shown in Figure 4, PTC termination electrode 1, ESD termination electrode 8 outsides are welded with pin 11,9 respectively, are exposed on the double-face electrode 3 outside the ESD core 5 and are welded with pin 10.
Described plug-in type thermal sensitive element is encapsulated with the epoxy resin layer of curing outward.
Have the manufacture method of the novel plug-in thermal sensitive element of overcurrent and ESD double protection, comprise the steps:
The first step: high density polyethylene (HDPE), carbon black, nano-calcium carbonate, magnesium hydroxide and phenolic antioxidant ANOX70 were mixed 10 minutes in high-speed mixing rises in proportion, then mixture is mixed in banbury under 180 ℃, through cooling off, compound being placed in the pressing mold, pressure 5Mpa is pressed into area 200cm under 180 ℃ of conditions of temperature
2, the PTC core of thick 0.2mm;
Second step: with hot press on PTC core two surface compound PTC termination electrode 1 and double-face electrodes 3 respectively, wherein, termination electrode 1 pastes on PTC core 2 through surface-treated one side, makes the PTC composite sheet, 80 ℃ of heat treatment is 48 hours in vacuum drying oven;
The 3rd step: with gamma-rays (Co
60) cross-linking radiation, dosage is 15Mrad;
In the process of preparation PTC composite sheet or front and back prepare ESD core slurry, detailed process comprises: the organic siliconresin A that gets Dow Corning company, the B component, mass ratio according to 1: 1, with high speed agitator with resin be stirred to color evenly till, in regular turn nickel powder, carborundum, the silicon dioxide granule of first weighing are sneaked in the resin that stirs, it is stirred in resin, make ESD core slurry.
The 4th step: the steel mesh of ESD core slurry by special pattern is printed on by design configuration on the printing zone 4 of element body double-face electrode 3 and forms most slurry coating districts, see
Fig. 2, a most ESD core pulp layer district do not link to each other mutually, solidify with 150 ℃ and make ESD core 5 in 1 hour, wherein, the part of double-face electrode is coated with ESD core 5, and some is exposed to outside the ESD core 5, ESD core surface recombination ESD termination electrode 8, wherein, ESD termination electrode 8 surface treated one sides paste on ESD core 5, ESD termination electrode 8 is the termination electrode sheet, and it is provided with termination electrode in the corresponding position with ESD core 5 zones, and remainder is not established termination electrode;
The 5th step: press line of cut 6,7 sheet material is cut into the small pieces of 14mm * 7mm, and each small pieces double-face electrode 3 (see figure 3)s of all comprising ESD core 5 and exposing;
The 6th step:, be exposed to part welding pin 10 (see figure 4)s outside the ESD core 5 at double-face electrode 3 in PTC termination electrode 1, ESD termination electrode 8 outside welding pin 11,9;
The 7th step: seal with epoxy resin layer, solidify encapsulated layer.
See also shown in Fig. 5 has multilayer PTC core for the present invention the structural representation of novel plug-in thermal sensitive element, manufacture method is all identical with embodiment 1, just the PTC core is the two floor height molecule PTC cores that constitute through lamination, be provided with double-face electrode 3 ' between two layers of PTC core 2,2 ', be positioned at outermost PTC core 2 outer compound PTC termination electrodes 1, PTC termination electrode 1 surface treated one side is compound with outermost PTC core 2, make two layers of PTC composite sheet, pin 11 is welded on PTC termination electrode 1 outside.
Multilayer PTC composite sheet manufacture method same as described above.
Claims (10)
1. novel plug-in thermal sensitive element with overcurrent and ESD double protection, comprise high molecular PTC core or the layer high molecule PTC core that constitutes through lamination, core two surface recombination tinsel electrodes, outside welding pin constitutes, it is characterized in that: described temperature-sensitive element, be compounded with the PTC termination electrode successively, the PTC core, double-face electrode, ESD core and ESD termination electrode, wherein, termination electrode, double-face electrode is the tinsel electrode, be welded with pin on the electrode, at least a portion of double-face electrode is coated with the ESD core, and has at least a portion to be exposed to outside the ESD core.
2. the novel plug-in thermal sensitive element with overcurrent and ESD double protection according to claim 1 is characterized in that: described termination electrode, its surface treated one side and PTC core, ESD core are compound.
3. the novel plug-in thermal sensitive element with overcurrent and ESD double protection according to claim 1 is characterized in that: the described termination electrode outside is welded with pin, is exposed on the double-face electrode outside the ESD core and is welded with pin.
4. according to claim 1 or 2 or 3 described novel plug-in thermal sensitive elements with overcurrent and ESD double protection, it is characterized in that: described plug-in type thermal sensitive element is encapsulated with the epoxy resin layer of curing outward.
5. the novel plug-in thermal sensitive element with overcurrent and ESD double protection according to claim 1 is characterized in that: described PTC core is made by high molecular polymer, conductive filler, Nano filling, other fillers and processing aid, wherein,
High molecular polymer is a kind of or its blend in polyethylene, polypropylene, Kynoar, the polytrifluorochloroethylene;
Conductive filler is a kind of or its combination in carbon black, graphite, carbon fiber, metal dust, the metal oxide powder;
Nano filling is a kind of or its combination in silicon dioxide, aluminium oxide, zinc oxide, carbon dioxide, the calcium carbonate;
Described other fillers are a kind of or its combination in potter's clay, magnesium hydroxide, aluminium hydroxide, the talcum powder;
Described processing aid comprises antioxidant, crosslinking accelerator and coupling agent, wherein, described antioxidant is phenols or aminated compounds, comprise phenolic antioxidant ANOX70, crosslinking accelerator is the polyfunctional group unsaturated compound, comprise triallyl isocyanurate, coupling agent is silane or titanate ester organic compound, comprises titanium coupling agent TCF.
6. the novel plug-in thermal sensitive element with overcurrent and ESD double protection according to claim 1 is characterized in that: described ESD core is made by high polymer binder, conducting particles, semiconductor particle and insulating particle, wherein,
High polymer binder is a kind of or its combination in organic siliconresin, epoxy resin, the rubber;
Conducting particles is a kind of or its combination in nickel powder, hydroxyl nickel, the aluminium powder;
Semiconductor particle is a kind of or its combination in zinc oxide, barium titanate, the carborundum;
Insulating particle is a kind of or its combination in silicon dioxide, aluminium oxide, the magnesium oxide.
7. at the described manufacture method of one of claim 1 to 6, it is characterized in that comprising the steps: with novel plug-in thermal sensitive element of overcurrent and ESD double protection
The first step: high molecular polymer, conductive filler, Nano filling, other fillers and processing aid are mixed, make the PTC core;
Second step: PTC core two surfaces are compound PTC termination electrode and double-face electrode respectively, and the surface treated one side of termination electrode is compound with the PTC core, makes the PTC composite sheet;
The 3rd step: with gamma-rays (Co
60) or electron beam to irradiate crosslinked, dosage is 5～100Mrad;
The 4th step: be printed on ESD core slurry on the double-face electrode of element body by design configuration, solidify and make the ESD core, wherein, at least a portion of double-face electrode is coated with the ESD core, and there is at least a portion to be exposed to outside the ESD core, ESD core surface recombination ESD termination electrode, the surface treated one side of termination electrode is compound with the ESD core;
The 5th step: section, and each small pieces all comprises ESD core and exposed double-face electrode;
The 6th step:, be exposed to part welding pin outside the ESD core at double-face electrode in termination electrode outside welding pin;
The 7th step: seal with epoxy resin layer, solidify encapsulated layer.
8. the manufacture method with novel plug-in thermal sensitive element of overcurrent and ESD double protection according to claim 7 is characterized in that: the multilayer PTC core of PTC core for most PTC cores are made through lamination described in second step.
9. the manufacture method with novel plug-in thermal sensitive element of overcurrent and ESD double protection according to claim 7 is characterized in that: most mutual disjunct ESD core pulp layers are printed in comprising by the design configuration printing described in the 4th step.
10. the manufacture method with novel plug-in thermal sensitive element of overcurrent and ESD double protection according to claim 7, it is characterized in that: the ESD termination electrode described in the 4th step is the termination electrode sheet, it is provided with termination electrode in the corresponding position with ESD core zone, and remainder is not established termination electrode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101722560A CN101183575A (en) | 2007-12-13 | 2007-12-13 | Novel plug-in thermal sensitive element with overflowing and ESD double protection and method of producing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101722560A CN101183575A (en) | 2007-12-13 | 2007-12-13 | Novel plug-in thermal sensitive element with overflowing and ESD double protection and method of producing the same |
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| CN101183575A true CN101183575A (en) | 2008-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101722560A Pending CN101183575A (en) | 2007-12-13 | 2007-12-13 | Novel plug-in thermal sensitive element with overflowing and ESD double protection and method of producing the same |
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| CN (1) | CN101183575A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819837B (en) * | 2009-02-27 | 2012-10-03 | 上海霖天功能材料有限公司 | Over-current and over-temperature protection element with positive temperature coefficient and preparation method thereof |
| CN103333384A (en) * | 2013-05-29 | 2013-10-02 | 安徽荣玖光纤通信科技有限公司 | Stretch resistance PTC polymer conductive material and preparation method thereof |
| CN103971870A (en) * | 2014-02-19 | 2014-08-06 | 贵州凯里经济开发区中昊电子有限公司 | Polymer thermosensitive resistor core material and product preparation method thereof |
| CN105462478A (en) * | 2015-12-14 | 2016-04-06 | 天津凯华绝缘材料股份有限公司 | Ultraviolet light cured PPTC electrode slurry and preparation method thereof |
| CN106363768A (en) * | 2015-07-20 | 2017-02-01 | Slm 方案集团股份公司 | Method and device for controlling an irradiation system in dependence on a work piece geometry |
| CN109943020A (en) * | 2019-03-16 | 2019-06-28 | 济南敏杰电子有限责任公司 | A kind of composite material and preparation method suitable for heat-sensitive sensor |
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2007
- 2007-12-13 CN CNA2007101722560A patent/CN101183575A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819837B (en) * | 2009-02-27 | 2012-10-03 | 上海霖天功能材料有限公司 | Over-current and over-temperature protection element with positive temperature coefficient and preparation method thereof |
| CN103333384A (en) * | 2013-05-29 | 2013-10-02 | 安徽荣玖光纤通信科技有限公司 | Stretch resistance PTC polymer conductive material and preparation method thereof |
| CN103333384B (en) * | 2013-05-29 | 2016-01-27 | 安徽荣玖光纤通信科技有限公司 | A kind of Stretch resistance PTC polymer conductive material and preparation method thereof |
| CN103971870A (en) * | 2014-02-19 | 2014-08-06 | 贵州凯里经济开发区中昊电子有限公司 | Polymer thermosensitive resistor core material and product preparation method thereof |
| CN106363768A (en) * | 2015-07-20 | 2017-02-01 | Slm 方案集团股份公司 | Method and device for controlling an irradiation system in dependence on a work piece geometry |
| CN106363768B (en) * | 2015-07-20 | 2019-02-15 | Slm 方案集团股份公司 | Method and apparatus for controlling an irradiation system and apparatus for making workpieces |
| US10919287B2 (en) | 2015-07-20 | 2021-02-16 | SLM Solutions Group AG | Method and device for controlling an irradiation system in dependence on a work piece geometry |
| CN105462478A (en) * | 2015-12-14 | 2016-04-06 | 天津凯华绝缘材料股份有限公司 | Ultraviolet light cured PPTC electrode slurry and preparation method thereof |
| CN109943020A (en) * | 2019-03-16 | 2019-06-28 | 济南敏杰电子有限责任公司 | A kind of composite material and preparation method suitable for heat-sensitive sensor |
| CN109943020B (en) * | 2019-03-16 | 2021-05-11 | 济南敏杰电子有限责任公司 | Composite material suitable for thermosensitive sensing and preparation method thereof |
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