CN104270135A - Touch switch - Google Patents
Touch switch Download PDFInfo
- Publication number
- CN104270135A CN104270135A CN201410481697.9A CN201410481697A CN104270135A CN 104270135 A CN104270135 A CN 104270135A CN 201410481697 A CN201410481697 A CN 201410481697A CN 104270135 A CN104270135 A CN 104270135A
- Authority
- CN
- China
- Prior art keywords
- switch panel
- layer
- circuit layer
- touch control
- soft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002131 composite material Substances 0.000 claims abstract description 44
- 229920001707 polybutylene terephthalate Polymers 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 18
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052796 boron Inorganic materials 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 239000003112 inhibitor Substances 0.000 claims abstract description 11
- -1 polybutylene terephthalate Polymers 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 17
- 230000003078 antioxidant effect Effects 0.000 claims description 17
- 239000012757 flame retardant agent Substances 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 11
- 150000002148 esters Chemical group 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 5
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 4
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 4
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 claims description 3
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 claims description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 2
- 235000019994 cava Nutrition 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 235000019820 disodium diphosphate Nutrition 0.000 claims description 2
- GYQBBRRVRKFJRG-UHFFFAOYSA-L disodium pyrophosphate Chemical compound [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O GYQBBRRVRKFJRG-UHFFFAOYSA-L 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 2
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 1
- 239000004425 Makrolon Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 125000004185 ester group Chemical group 0.000 abstract 1
- 239000003063 flame retardant Substances 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 description 11
- 229920001296 polysiloxane Polymers 0.000 description 5
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 description 4
- 239000004594 Masterbatch (MB) Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- FEXBEKLLSUWSIM-UHFFFAOYSA-N 2-Butyl-4-methylphenol Chemical class CCCCC1=CC(C)=CC=C1O FEXBEKLLSUWSIM-UHFFFAOYSA-N 0.000 description 1
- 229910052580 B4C Inorganic materials 0.000 description 1
- 241001481828 Glyptocephalus cynoglossus Species 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention relates to a touch switch, and belongs to the technical field of switches. The touch switch comprises a switch panel, a membrane switch is arranged on the front face of the switch panel and provided with a panel layer, a face key layer, an upper circuit layer, a lower circuit layer and a bottom gel layer from top to bottom in sequence, an extension socket is connected with the lower circuit layer, a wire key layer is arranged between the upper circuit layer and the lower circuit layer, at least one conductive elastic sheet is arranged on the upper circuit layer, and retreating holes which are formed correspondingly and are formed above and below the conductive elastic sheet respectively are formed in the face key layer and the wire key layer respectively. The switch panel is made of composite materials, and comprises the following components, by mass, 65 to 75 parts of makrolon, eight to 30 parts of polybutylene terephthalate, 0.5 to three parts of ester exchange inhibitors, one to three parts of composite flame retardant, two to 15 parts of toughening compatibilizer, five to 15 parts of boron fibers, 0.5 to one part of antioxygen and 0.5 to three parts of processing agents. The touch switch has the advantage of being long in service life.
Description
Technical field
The invention belongs to switching technique field, relate to lamp switch, particularly relate to a kind of soft-touch control.
Background technology
Soft-touch control is a kind of comparatively common daily necessities, for opening or extinguishing light fixture, the structure of soft-touch control comprises switch panel, and switch panel is provided with contact witch, and in order to can improve installation effectiveness and increase the service life, increasing soft-touch control is developed.
Such as, Chinese patent literature discloses a kind of soft-touch control, [application number: 201220678151.9], comprise installing rack, the panel be fastened on installing rack, the circuit board module that is buckled in light transmission piece on panel and touch sheet, is arranged on the pedestal on installing rack and is arranged in pedestal, it is characterized in that described touch sheet is insulating material; Described circuit board module comprises substrate, be arranged on wiring board on substrate and binding post, and the cylindrical spring arranged in the circuit board and LED light, and the top of described cylindrical spring contacts with wiring board with described touch sheet respectively with bottom.The soft-touch control of the program, after correct wiring is installed, the spring on circuit board module and the touch sheet be arranged on installing rack keep in touch state always, when finger contact touch sheet, power on circuitry; Otherwise, then down circuitry.Even if in a humid environment, also electric shock phenomenon can not be there is when touching, easy to use, safe and reliable.
Above-mentioned scheme improves prior art to a certain extent, but the program also at least exists following defect: trigging control is dumb and not easily install and locate, poor practicability.
Summary of the invention
The object of the invention is for the problems referred to above, the soft-touch control that a kind of structure is simple and practical is provided.
For achieving the above object, present invention employs following technical proposal: this soft-touch control comprises switch panel, switch panel is square structure, through hole is provided with at the center of switch panel, the base inner for through hole aperture can closed is provided with at the switch panel back side, base is connected with switch panel by some securing members, described switch panel is located by fixed structure, membrane switches is provided with in the front of switch panel, this membrane switches comprises and is provided with panel layer successively from top to bottom, face key layer, upper circuit layer, lower circuit layer and the primer layer be connected with switch panel, panel layer is made up of PET material, lower circuit layer is connected with socket, base is provided with supply and discharge inserted through the socket hole gone out, line key layer is provided with between upper circuit layer and lower circuit layer, upper circuit layer is provided with at least one electroconductive elastic sheet, described face key layer and line key layer are equipped with mutually corresponding setting and the resigning hole be located at respectively with below above described electroconductive elastic sheet, upper circuit layer is provided with a LED illuminator, face key layer is provided with the location hole inserted for described LED illuminator, electroconductive elastic sheet is arch shape structure, finish coat is provided with away from the one side of face key layer at panel layer, wherein, switch panel is obtained by composite material, described composite material comprises following composition and mass fraction composition thereof: Merlon (PC): 65-75 part, polybutylene terephthalate (PBT) (PBT): 8-30 part, ester exchange inhibitor: 0.5-3 part, composite flame-retardant agent: 1-3 part, toughness reinforcing compatilizer: 2-15 part, boron fibre: 5-15 part, antioxidant: 0.5-1 part, processing aid: 0.5-3 part.
In the present invention, being provided with fixed structure can so that installs and location; Be provided with membrane switches, namely press finish coat and the electroconductive elastic sheet be located on circuit layer is contacted with lower circuit layer, can strengthen the flexibility of touch-control, meanwhile, the resigning hole of setting can ensure stability and the flexibility of touch-control further.And finish coat can strengthen aesthetic property and increase the service life.In addition, switch panel of the present invention adopts the rational composite material of compatibility to obtain, and PC had both improved the mobility of Merlon in the mixing of PBT, and solvent resistance, reduces the cost of Merlon, turn improves glossiness and the intensity of PBT.The fabulous composite flame-retardant agent of anti-flammability is added again on the basis of PC, PBT in composite material, with the addition of the raw materials such as toughness reinforcing compatilizer, boron fibre simultaneously, boron fibre is filled to strengthen and is substituted glass fiber reinforcement, drastically increase the impact toughness of composite material, the switch panel that composite material is obtained can be tested by the low temperature ball falling impact of UL746C; And toughness reinforcing compatilizer can not only improve the toughness effect of composite material further, good compatibilization effect can also be played, thus reach modifying function.Therefore, the composite material of switch panel of the present invention, having excellent mechanical property, while especially having high tenacity, has fabulous fire resistance, and mobility and release property fabulous, fine heat-resisting performance, useful life is extremely long.
In above-mentioned soft-touch control, as preferably, the bisphenol A polycarbonate of Merlon to be molecular weight be 20000-25000 in described composite material.
In above-mentioned soft-touch control, as preferably, in described composite material, ester exchange inhibitor is one or more in triphenyl phosphite, Sodium Acid Pyrophosphate, sodium dihydrogen phosphate and ammonium di-hydrogen phosphate.
In above-mentioned soft-touch control, as preferably, in described composite material, composite flame-retardant agent is made up of the component of following weight parts: trimethylsilyl dimethyl methyl phosphonate 10-20 part, melamine cyanurate 30-50 part, antimonous oxide 10-20 part, dimethyl methyl phosphonate 40-60 part.Described composite flame-retardant agent takes raw material by said ratio and mixes.Composite flame-retardant agent of the present invention is good with the compatibility of PC, PBT in switch panel of the present invention, do not move, do not separate out, be not extracted, be easy to be uniformly dispersed, good weatherability, persistence is good, do not decompose in the shaping and processing and forming of high-temperature fusion, make the impregnable prerequisites of performance such as switch panel composite material heat distortion temperature, mechanics temperature and electric insulation in maintenance under, make composite material have long-acting fabulous anti-flammability.
In above-mentioned soft-touch control, as preferably, in described composite material, toughness reinforcing compatilizer is one or more in the polyolefin of maleic anhydride graft POE, ethylene-acrylate class-glycidyl methacrylate copolymer, the elastomer of glycidyl methacrylate graft, glycidyl methacrylate graft.
In above-mentioned soft-touch control, as preferably, in described composite material, boron fibre surface has boron carbide coat.
In above-mentioned soft-touch control, as preferably, antioxidant described in described composite material is described antioxidant is Hinered phenols antioxidant and auxiliary antioxidant, wherein said Hinered phenols antioxidant is 2,6-tri-grades of butyl-4-methylphenols, two (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether, one or more in antioxidant 1010, described auxiliary antioxidant is one or more in DSTP, irgasfos 168, antioxidant 1098.Antioxidant DSTP, irgasfos 168, antioxidant 1098 have the function of decompose hydroperoxide; can be used as the auxiliary antioxidant of Merlon; its fusing point is high, volatility is low, hot working loss is little; can produce with Hinered phenols antioxidant simultaneously and well act synergistically; more effectively prevent the thermal degradation of composite material in injection moulding, to the long-effective protection that material is extra.
In above-mentioned soft-touch control, as preferably, in described composite material, processing aid is one or more in aliphatic acid, calcium stearate, silicone powder, silicone master batch, modification ethylene bis-fatty acid amides, ethylene bis stearamide.
In above-mentioned soft-touch control, as preferably, the preparation method of described switch panel is: take PBT, PC, ester exchange inhibitor, composite flame-retardant agent, toughness reinforcing compatilizer, antioxidant, processing aid by above-mentioned mass fraction, by the raw material taken after high-speed mixer dispersion mixes, side feeding adds boron fibre, by double screw extruder melting, mixing, extrude, cool, pelletizing, drying, i.e. obtained switch panel.
Wherein, it is 40-50: 1 that described double screw extruder extrudes draw ratio, and each section of extruder temperature is 250-300 DEG C, and screw speed is 300-400rpm/min.
In above-mentioned soft-touch control, described switch panel front is provided with and caves inward and depression for installing membrane switches, and described membrane switches is located in depression.
In above-mentioned soft-touch control, described fixed structure comprises the fixed support being arranged on the switch panel back side, is connected between fixed support with switch panel by demountable structure, and fixed support is provided with some fixing holes.
In above-mentioned soft-touch control, described switch panel circumference side has the annular shirt rim extended to the turnover of its back side.
In above-mentioned soft-touch control, described annular shirt rim and switch panel are connected as a single entity structure, and between annular shirt rim and switch panel, be provided with reinforcement structure.
In above-mentioned soft-touch control, described reinforcement structure comprises the some reinforcements be arranged between annular shirt rim and switch panel.
Compared with prior art, the advantage of this soft-touch control is: 1, design is more reasonable, and being provided with fixed structure can so that installs and location; Be provided with membrane switches, namely press finish coat and the electroconductive elastic sheet be located on circuit layer is contacted with lower circuit layer, can strengthen the flexibility of touch-control, meanwhile, the resigning hole of setting can ensure stability and the flexibility of touch-control further, practical; 2, structure simple, be easy to manufacture and long service life.3, switch panel adopts compatibility reasonable, and the materials such as appropriate specific composite flame-retardant agent, boron fibre, toughness reinforcing compatilizer are added on PC, PBT basis, makes switch panel have excellent mechanical property, fire resistance etc., improves the useful life of switch panel.
Accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram provided by the invention.
Fig. 2 is structure schematic diagram provided by the invention.
Fig. 3 is the structural representation of breaker in middle panel of the present invention.
Fig. 4 is the detonation configuration figure of membrane switches in the present invention.
In figure, switch panel 1, through hole 11, depression 12, annular shirt rim 13, reinforcement 14, base 2, securing member 21, socket hole 22, membrane switches 3, resigning hole 3a, panel layer 31, location hole 31a, face key layer 32, upper circuit layer 33, LED illuminator 33a, lower circuit layer 34, primer layer 35, socket 36, line key layer 38, electroconductive elastic sheet 39, fixed support 4, fixing hole 41.
Embodiment
Be below the specific embodiment of invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As Figure 1-4, this soft-touch control comprises switch panel 1, switch panel 1 is in square structure, through hole 11 is provided with at the center of switch panel 1, the base 2 inner for through hole 11 aperture can closed is provided with at switch panel 1 back side, base 2 is connected with switch panel 1 by some securing members 21, there is at the circumferential side of switch panel 1 annular shirt rim 13 extended to the turnover of its back side, annular shirt rim 13 and switch panel 1 are connected as a single entity structure, and are provided with reinforcement structure between annular shirt rim 13 and switch panel 1.Strengthen structure and comprise the some reinforcements 14 be arranged between annular shirt rim 13 and switch panel 1.
Switch panel 1 is located by fixed structure, prioritization scheme, and this fixed structure comprises the fixed support 4 being arranged on switch panel 1 back side, is connected between fixed support 4 with switch panel 1 by demountable structure, and fixed support 4 is provided with some fixing holes 41.
Be provided with membrane switches 3 in the front of switch panel 1, be provided with in switch panel 1 front and cave inward and depression 12 for installing membrane switches 3, described membrane switches 3 is located in depression 12.
The membrane switches 3 of the present embodiment comprises and is provided with panel layer 31 successively from top to bottom, face key layer 32, upper circuit layer 33, lower circuit layer 34 and the primer layer 35 be connected with switch panel 1, panel layer 31 is made up of PET material, lower circuit layer 34 is connected with socket 36, base 2 is provided with the socket hole 22 passed for socket 36, line key layer 38 is provided with between upper circuit layer 33 and lower circuit layer 34, upper circuit layer 33 is provided with at least one electroconductive elastic sheet 39, described face key layer 32 and line key layer 38 are equipped with mutually corresponding setting and the resigning hole 3a be located at respectively with below above described electroconductive elastic sheet 39, upper circuit layer 33 is provided with a LED illuminator 33a, face key layer 32 is provided with the location hole 31a inserted for described LED illuminator 33a, electroconductive elastic sheet 39 is in arch shape structure, panel layer 31 away from, the one side of face key layer 32 is provided with finish coat 40.
In the present embodiment, pressing finish coat 40 makes the electroconductive elastic sheet 39 be located on circuit layer contact with lower circuit layer 34, and can strengthen the flexibility of touch-control, meanwhile, the resigning hole 3a of setting can ensure stability and the flexibility of touch-control further.
In addition, wherein, switch panel 1 is obtained by composite material, and described composite material comprises following composition and mass fraction composition thereof: Merlon (PC): 65-75 part, polybutylene terephthalate (PBT) (PBT): 8-30 part, ester exchange inhibitor: 0.5-3 part, composite flame-retardant agent: 1-3 part, toughness reinforcing compatilizer: 2-15 part, boron fibre: 5-15 part, antioxidant: 0.5-1 part, processing aid: 0.5-3 part.
Composite flame-retardant agent: take raw material by the component composition of following weight parts: trimethylsilyl dimethyl methyl phosphonate 10-20 part, melamine cyanurate 30-50 part, antimonous oxide 10-20 part, dimethyl methyl phosphonate 40-60 part, mix to obtain composite flame-retardant agent by the above-mentioned raw material taken.
Table 1: the material composition of embodiment 1-3 breaker in middle panel 1 and mass fraction thereof
Embodiment 1
PBT, PC, ester exchange inhibitor, composite flame-retardant agent, toughness reinforcing compatilizer, antioxidant, processing aid is taken by mass fraction described in table 1 embodiment 1, by the raw material taken after high-speed mixer dispersion mixes, side feeding adds boron fibre, by double screw extruder melting, mixing, extrude, cool, pelletizing, drying, i.e. obtained switch panel.Wherein, described Merlon to be molecular weight be 23000 bisphenol A polycarbonate.Described processing aid is aliphatic acid, silicone powder.It is 45:1 that described double screw extruder extrudes draw ratio, and each section of extruder temperature is 280 DEG C, and screw speed is 350rpm/min.
Embodiment 2
PBT, PC, ester exchange inhibitor, composite flame-retardant agent, toughness reinforcing compatilizer, antioxidant, processing aid is taken by mass fraction described in table 1 embodiment 2, by the raw material taken after high-speed mixer dispersion mixes, side feeding adds boron fibre, by double screw extruder melting, mixing, extrude, cool, pelletizing, drying, i.e. obtained switch panel.Wherein, described Merlon to be molecular weight be 25000 bisphenol A polycarbonate.Described processing aid is calcium stearate, silicone master batch, modification ethylene bis-fatty acid amides.It is 40:1 that described double screw extruder extrudes draw ratio, and each section of extruder temperature is 300 DEG C, and screw speed is 300rpm/min.
Embodiment 3
PBT, PC, ester exchange inhibitor, composite flame-retardant agent, toughness reinforcing compatilizer, antioxidant, processing aid is taken by mass fraction described in table 1 embodiment 3, by the raw material taken after high-speed mixer dispersion mixes, side feeding adds boron fibre, by double screw extruder melting, mixing, extrude, cool, pelletizing, drying, i.e. obtained switch panel.Wherein, described Merlon to be molecular weight be 20000 bisphenol A polycarbonate.Described processing aid is aliphatic acid, silicone master batch, ethylene bis stearamide.It is 50:1 that described double screw extruder extrudes draw ratio, and each section of extruder temperature is 250 DEG C, and screw speed is 400rpm/min.
Switch panel 1 obtained in embodiment 1-3 is carried out performance test, and test result is as shown in table 2.
Table 2: the performance test results of switch panel 1 obtained in embodiment 1-3
In sum, switch panel 1 in inventive touch switch adopts compatibility reasonable, the materials such as appropriate specific composite flame-retardant agent, boron fibre, toughness reinforcing compatilizer are added on PC, PBT basis, make switch panel 1 have excellent mechanical property, fire resistance etc., improve the useful life of switch panel 1.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as switch panel 1, through hole 11, depression 12, annular shirt rim 13, reinforcement 14, base 2, securing member 21, socket hole 22, membrane switches 3, resigning hole 3a, panel layer 31, location hole 31a, face key layer 32, upper circuit layer 33, LED illuminator 33a, lower circuit layer 34, primer layer 35, socket 36, line key layer 38, electroconductive elastic sheet 39, fixed support 4, fixing hole 41 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (10)
1. a soft-touch control, comprise switch panel (1), switch panel (1) is in square structure, through hole (11) is provided with at the center of switch panel (1), it is characterized in that, described switch panel (1) back side is provided with the base (2) through hole (11) inner aperture can closed, base (2) is connected with switch panel (1) by some securing members (21), described switch panel (1) is located by fixed structure, membrane switches (3) is provided with in the front of switch panel (1), this membrane switches (3) comprises and is provided with panel layer (31) from top to bottom successively, face key layer (32), upper circuit layer (33), lower circuit layer (34) and the primer layer (35) be connected with switch panel (1), panel layer (31) is made up of PET material, lower circuit layer (34) is connected with socket (36), base (2) is provided with the socket hole (22) passed for socket (36), line key layer (38) is provided with between upper circuit layer (33) and lower circuit layer (34), upper circuit layer (33) is provided with at least one electroconductive elastic sheet (39), described face key layer (32) and line key layer (38) are equipped with corresponding setting mutually and the resigning hole (3a) be located at respectively with below above described electroconductive elastic sheet (39), upper circuit layer (33) is provided with a LED illuminator (33a), face key layer (32) is provided with the location hole (31a) inserted for described LED illuminator (33a), electroconductive elastic sheet (39) is in arch shape structure, finish coat (40) is provided with away from the one side in face key layer (32) at panel layer (31), wherein, switch panel is obtained by composite material, described composite material comprises following composition and mass fraction composition thereof: Merlon: 65-75 part, polybutylene terephthalate (PBT): 8-30 part, ester exchange inhibitor: 0.5-3 part, composite flame-retardant agent: 1-3 part, toughness reinforcing compatilizer: 2-15 part, boron fibre: 5-15 part, antioxidant: 0.5-1 part, processing aid: 0.5-3 part.
2. soft-touch control according to claim 1, is characterized in that, in described composite material, ester exchange inhibitor is one or more in triphenyl phosphite, Sodium Acid Pyrophosphate, sodium dihydrogen phosphate and ammonium di-hydrogen phosphate.
3. soft-touch control according to claim 1, it is characterized in that, in described composite material, composite flame-retardant agent is made up of the component of following weight parts: trimethylsilyl dimethyl methyl phosphonate 10-20 part, melamine cyanurate 30-50 part, antimonous oxide 10-20 part, dimethyl methyl phosphonate 40-60 part.
4. soft-touch control according to claim 1, it is characterized in that, in described composite material, toughness reinforcing compatilizer is one or more in the polyolefin of maleic anhydride graft POE, ethylene-acrylate class-glycidyl methacrylate copolymer, the elastomer of glycidyl methacrylate graft, glycidyl methacrylate graft.
5. soft-touch control according to claim 1, it is characterized in that, the preparation method of described switch panel for: take PBT, PC, ester exchange inhibitor, composite flame-retardant agent, toughness reinforcing compatilizer, antioxidant, processing aid by mass fraction described in claim 1, by the raw material taken after high-speed mixer dispersion mixes, side feeding adds boron fibre, by double screw extruder melting, mixing, extrude, cool, pelletizing, drying, i.e. obtained switch panel; Wherein, it is 40-50:1 that described double screw extruder extrudes draw ratio, and each section of extruder temperature is 250-300 DEG C, and screw speed is 300-400rpm/min.
6. soft-touch control according to claim 1, it is characterized in that, described switch panel (1) front is provided with and caves inward and depression (12) for installing membrane switches (3), and described membrane switches (3) is located in depression (12).
7. the soft-touch control according to claim 1 or 6, it is characterized in that, described fixed structure comprises the fixed support (4) being arranged on switch panel (1) back side, be connected by demountable structure between fixed support (4) with switch panel (1), fixed support (4) is provided with some fixing holes (41).
8. soft-touch control according to claim 1 and 2, is characterized in that, described switch panel (1) circumferential side has the annular shirt rim (13) extended to the turnover of its back side.
9. soft-touch control according to claim 8, it is characterized in that, described annular shirt rim (13) and switch panel (1) are connected as a single entity structure, and are provided with reinforcement structure between annular shirt rim (13) and switch panel (1).
10. soft-touch control according to claim 9, is characterized in that, described reinforcement structure comprises the some reinforcements (14) be arranged between annular shirt rim (13) and switch panel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481697.9A CN104270135A (en) | 2014-09-19 | 2014-09-19 | Touch switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481697.9A CN104270135A (en) | 2014-09-19 | 2014-09-19 | Touch switch |
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| Publication Number | Publication Date |
|---|---|
| CN104270135A true CN104270135A (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410481697.9A Pending CN104270135A (en) | 2014-09-19 | 2014-09-19 | Touch switch |
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| CN104610714A (en) * | 2015-02-11 | 2015-05-13 | 北京工商大学 | Insulated and heat-conductive polybutylene terephthalate/polycarbonate composite material and preparation method thereof |
| CN107129670A (en) * | 2017-05-18 | 2017-09-05 | 福建华塑新材料有限公司 | It is a kind of applied to anti-aging polycarbonate alloy of switch panel and preparation method thereof |
| US20220041860A1 (en) * | 2019-01-10 | 2022-02-10 | Kingfa Sci. & Tech. Co., Ltd. | Polycarbonate alloy and preparation method thereof and application |
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| US20220041860A1 (en) * | 2019-01-10 | 2022-02-10 | Kingfa Sci. & Tech. Co., Ltd. | Polycarbonate alloy and preparation method thereof and application |
| US11767427B2 (en) * | 2019-01-10 | 2023-09-26 | Kingfa Sci. & Tech. Co., Ltd. | Polycarbonate alloy and preparation method thereof and application |
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