Package buffering device
Technical field
The invention relates to a kind of package buffering device, relate in particular to a kind of package buffering device of liquid crystal panel.
Background technology
Liquid Crystal Display (LCD) (Liquid Crystal Display; LCD) have advantages such as high image quality, volume are little, in light weight, low voltage drive, low consumpting power, so be widely used in portable television, mobile phone, shot with video-corder enlarging machine, in consumer electronics such as notebook PC, console display and projection TV or the computer product, become the main flow of telltale.
Wherein consist predominantly of assemblies such as liquid crystal panel, backlight module, framework in the Liquid Crystal Display (LCD).In carrying display panel semi-finished process, the collision when avoiding display panel because of carrying is impaired, how can use carton and pallet packing liquid crystal panel, and fill in liner as shock absorber in the space.Yet this kind packing device can take more space, and pallet easily in the process of carrying because of the weight flexure deformation of liquid crystal panel, make liquid crystal panel placed on it break because of extruding or deflection.In addition, carton is easily damaged in the process of carrying, reduces packing and reclaims the benefit of using.
Therefore, how effectively to promote the liquid crystal panel efficient in when carrying, and reduce liquid crystal panel impaired situation in handling process, just become an important problem.
Summary of the invention
The purpose of this invention is to provide a kind of package buffering device, in order to promote the efficient of carrying liquid crystal panel.
For achieving the above object, the invention provides package buffering device, in order to pack a plurality of liquid crystal panels, each described liquid crystal panel comprises a liquid-crystalline glasses, a circuit substrate, and at least one flexible printed wiring board that connects described liquid-crystalline glasses and described circuit substrate, described package buffering device comprises:
One expanded material framework;
A plurality of chimeric, each described chimeric end is embedded in described expanded material framework, and each described chimeric other end stretches between described liquid-crystalline glasses and the described circuit substrate; And
One limit assembly is set on described expanded material framework and described chimeric, and wherein said chimeric the hardness and the hardness of described limit assembly are all greater than the hardness of described expanded material framework.
Further, described expanded material framework is a hollow structure, and described limit assembly is a carrier that is set in described expanded material framework, and described liquid crystal panel is stacked and placed on the described carrier.
Further, described carrier comprises a plurality of ribs, and described ribs is arranged in parallel with each other.
Further, described expanded material framework comprises a plurality of grooves, and described limit assembly comprises a plurality of fins, and described fin is fastened on respectively in the described groove.
Further, described expanded material framework comprises a bottom surface, centers on a plurality of sidewalls of described bottom surface, and be positioned on the described bottom surface and one of them a fixing projection of contiguous described sidewall, a described chimeric end is embedded in described fixedly projection, described limit assembly is set on described fixedly projection and described chimeric, and described liquid crystal panel is stacked on the described bottom surface.
Further, described expanded material framework comprises a plurality of first knock holees, comprises a plurality of second knock holees on the described limit assembly, with respectively corresponding described first knock hole.
Further, each described chimeric comprises a fixed part, a contact arm, and a neck that connects described fixed part and described contact arm, described fixed part is embedded in described expanded material framework, and the width of described neck is less than the width of described fixed part.
Further, described contact arm has a contact surface, with fixing described liquid-crystalline glasses.
Further, described contact arm is a hollow structure or a solid construction.
Further, also comprise a metal framework, described metal framework has a hollow framework and at least one moulding, and described at least one moulding is configured between the opposite side of described hollow framework, and described metal framework is embedded in the described expanded material framework.
Further, described at least one moulding is configured in the below of described hollow framework.
Further, also comprise an over cap, engage with described expanded material framework.
Further, also comprise a plurality of cushion rubbers, be separately positioned between the described liquid crystal panel.
For achieving the above object, the present invention also provides a kind of packing module, use above-mentioned package buffering device, described packing module comprises stacked a plurality of described package buffering device, wherein keeps a spacing between the liquid crystal panel of the top in the described liquid crystal panel that described carrier carried of each described carrier and its below.
For achieving the above object, the present invention also provides a kind of packing module, use above-mentioned package buffering device, described packing module comprises stacked a plurality of described package buffering device, wherein keeps a spacing between the liquid crystal panel of the top in the described liquid crystal panel that carries of the described bottom surface of each described bottom surface and its below.
This shows, the package buffering device that the present invention proposes, in order to pack a plurality of liquid crystal panels, each liquid crystal panel comprises liquid-crystalline glasses, circuit substrate, and a plurality of flexible printed wiring boards that connect liquid-crystalline glasses and circuit substrate.Package buffering device comprises expanded material framework, a plurality of chimeric and limit assembly.An end of chimeric is embedded in the expanded material framework, and chimeric the other end stretches between liquid-crystalline glasses and the circuit substrate.Limit assembly is set on expanded material framework and chimeric, wherein chimeric with the hardness of limit assembly all greater than the hardness of expanded material framework.
The expanded material framework can be hollow structure, and limit assembly is a carrier that is set in the expanded material framework, and liquid crystal panel is stacked and placed on the carrier.Carrier comprises a plurality of ribs, and ribs is arranged in parallel with each other.The expanded material framework comprises a plurality of grooves, and limit assembly comprises a plurality of fins, and fin is sticked in groove respectively.The expanded material framework can comprise the bottom surface, around a plurality of sidewalls of bottom surface, and be positioned on the bottom surface and the fixing projection of adjacent sidewall.An end of chimeric is embedded in fixedly projection, and limit assembly is set in fixedly on projection and chimeric, and liquid crystal panel is stacked and placed on the bottom surface.The expanded material framework comprises a plurality of first knock holees, comprises a plurality of second knock holees on the limit assembly, and second knock hole is corresponding first knock hole respectively.Each chimeric comprises fixed part, contact arm, and the neck that is connected and fixed portion and contact arm, and fixed part is embedded in the expanded material framework, and the width of neck is less than the width of fixed part.Contact arm has contact surface, with the immobile liquid crystal glass.Contact arm can be hollow structure or solid construction.Package buffering device can also include metal framework, and metal framework has the central authorities that hollow framework and at least one moulding are configured in the hollow framework, and metal framework is embedded in the expanded material framework.Moulding preferably is configured in the below of hollow framework.Package buffering device also comprises the over cap that engages with the expanded material framework.Package buffering device also comprises a plurality of cushion rubbers that are arranged at respectively between the liquid crystal panel.
The present invention also proposes a kind of packing module of package buffering device of application of aforementioned, comprises stacked a plurality of package buffering device, wherein keeps a spacing between the liquid crystal panel of the top in the liquid crystal panel that carrier carried of each carrier and its below.
The present invention proposes a kind of packing module of package buffering device of application of aforementioned again, comprises stacked a plurality of package buffering device, wherein keeps a spacing between the liquid crystal panel of the top in the liquid crystal panel that carries of the bottom surface of each bottom surface and its below.
Package buffering device of the present invention can directly stackedly become the packing module, reduces the use of packaging materials such as carton or liner, and the space when effectively saving carrying also promotes handling efficiency.The expanded material framework that hardness is minimum in the package buffering device can provide good buffering effect.The hardness of chimeric hardness and limit assembly is all greater than the hardness of expanded material framework in the package buffering device.Chimeric can be stretched between liquid-crystalline glasses and the circuit substrate to reach the purpose that supports liquid-crystalline glasses, the benchmark when limit assembly then can be used as the automation location.In addition, liquid crystal panel is for being suspended in each package buffering device, and the weight of the liquid crystal panel in each package buffering device can directly not be passed on the liquid crystal panel in the package buffering device of its below.
Description of drawings
Fig. 1 is a kind of scheme drawing of liquid crystal panel.
Fig. 2 A is the decomposition view of first embodiment of the invention.
Fig. 2 B is the scheme drawing before the first embodiment of the invention assembling
Fig. 2 C is the scheme drawing after the first embodiment of the invention assembling.
Fig. 3 A is the three-dimensional view of the packing module of first embodiment of the invention.
Fig. 3 B is the scheme drawing of the packing module of first embodiment of the invention.
Fig. 4 is the decomposition view of second embodiment of the invention.
Fig. 5 is the scheme drawing of the packing module of second embodiment of the invention.
Fig. 6 is the decomposition view of third embodiment of the invention.
Fig. 7 A to the 7E figure is respectively the scheme drawing of chimeric different embodiment among the present invention.
The reference numeral explanation:
100: liquid crystal panel
110: 418: the first knock holees of liquid-crystalline glasses
120: circuit substrate 420: chimeric
130: flexible printed wiring board 422: contact arm
150: cushion rubber 424: fixed part
200: package buffering device 426: neck
210: expanded material framework 430: limit assembly
211: escape 432: the second knock holees in angle
212: groove 434: flange
213: block 440: over cap
Knock hole 500 in 214: the first: the packing module
215: embedded hole 600: package buffering device
217: holding part 610: the expanded material framework
220: chimeric 612: track
222: contact arm 614: holes
224: fixed part 620: chimeric
226: neck 630: limit assembly
230: limit assembly 650: metal framework
232: ribs 652: the hollow framework
234: fin 654: moulding
236: the second knock hole 700a, 700b, 700c, 700d, 700e:
240: chimeric of over cap
300: packing module 710a, 710b, 710c, 710d, 710e:
400: the package buffering device fixed part
410: expanded material framework 720a, 720b, 720c, 720d, 720e:
411: the bottom surface contact arm
413: sidewall 722a, 722b, 722c, 722d, 722e:
414: the embedded hole contact surface
415: fixedly projection 730a, 730b, 730c, 730d, 730e:
416: the holding part neck
D: spacing 724e: elastic construction
The specific embodiment
Clearly demonstrate content of the present invention below with reference to the accompanying drawing detailed description, technical personnel is after understanding the preferred embodiments of the present invention in any affiliated technical field, various corresponding changes and distortion be can make according to the present invention, but spirit of the present invention and scope do not broken away from.
Fig. 1 is a kind of scheme drawing of liquid crystal panel.Liquid crystal panel 100 includes liquid-crystalline glasses 110, circuit substrate 120, and at least one flexible printed wiring board 130 that connects liquid-crystalline glasses 110 and circuit substrate 120.Liquid-crystalline glasses 110 can be two glass substrates and is sandwiched in two kinds of liquid crystal layers between the glass substrate to be formed.Is example at this with a plurality of flexible printed wiring boards 130, and wherein a plurality of flexible printed wiring boards 130 are that arrange the compartment of terrain.
Fig. 2 A is the decomposition view of first embodiment of the invention.Package buffering device 200 includes an expanded material framework 210, a plurality of chimeric 220 and a limit assembly 230.Be embedded in expanded material framework 210 for wherein chimeric 220, limit assembly 230 be sleeved on expanded material framework 210 with chimeric 220 on.Wherein chimeric 220 the hardness and the hardness of limit assembly 230 are all greater than the hardness of expanded material framework 210.Expanded material framework 210 main purposes are buffering and protection liquid crystal panel 100; but expanded material has wayward precision and more yielding shortcoming, so need the harder limit assembly of hardness 230 to come auxiliary positioning and avoid liquid-crystalline glasses 110 slippages with chimeric 220.Chimeric 220 material can be thermosetting plastic, as: acrylonitrile-butadiene-styrene (Acrylonitrile-Butadiene-Styrene; ABS) or plastic-steel (polyoxymethylene; POM) etc.; The material of limit assembly 230 can be thermoplastic plastic, as: poly terephthalic acid vinyl acetate (poly ethylene terephthalate; PET) etc., but be not limited thereto, also can select suitable material according to actual demand.
Wherein expanded material framework 210 can be hollow structure, and limit assembly 230 is for being set in the carrier of expanded material framework 210, can be thereon stacked for a plurality of liquid crystal panel 100.Carrier can include a plurality of ribs 232, and ribs 232 is arranged in parallel with each other, in order to strengthen the support strength of carrier.Can have a plurality of grooves 212 on the expanded material framework 210, have a plurality of fins 234 on the limit assembly 230, fin 234 can engage with groove 212, places on the expanded material framework 210 in order to positioning limit assembly 230.
Fig. 2 B and Fig. 2 C are respectively the forward and backward scheme drawing of first embodiment of the present invention assembling.Package buffering device 200 can be in order to pack a plurality of liquid crystal panels 100; can isolate by a plurality of cushion rubbers 150 between the liquid crystal panel 100; in order to protection and buffer action to be provided, wherein liquid crystal panel 100 and cushion rubber 150 are for being stacked in alternately on the limit assembly 230.
An end of chimeric 220 (being contact arm 222) stretches between liquid-crystalline glasses 110 and the circuit substrate 120 with location liquid crystal panel 100.Chimeric 220 other end (being fixed part 224) is for being embedded in expanded material framework 210.More can include neck 226 for chimeric 220 to be connected and fixed portion 224 and contact arm 222, wherein the width of neck 226 is the width less than fixed part 224.
Expanded material framework 210 can have embedded hole 215 and holding part 217.Chimeric 220 fixed part 224 can engage with embedded hole 215, and 217 of holding part can be clamped neck 226 and be prevented that fixed part 224 from skidding off embedded hole 215.Contact arm 222 can stretch between liquid-crystalline glasses and the circuit substrate.Limit assembly 230 can have the flange 235 corresponding to contact arm 222.When limit assembly 230 was socketed on expanded material framework 210 with chimeric 220, contact arm 222 was contained among the flange 235.
Expanded material framework 210 more includes a plurality of first knock holees 214, includes a plurality of second knock holees 236 on the limit assembly 230.Second knock hole 236 is to be provided with corresponding to first knock hole 214, when socket limit assembly 230 is on expanded material framework 210, first knock hole 214 is engaged with second knock hole 236.
Because the material of expanded material framework 210 has the uppity shortcoming of working accuracy, therefore, add man-hour carrying out automation, if directly with first knock hole 214 on the expanded material framework 210 as the location benchmark, cause liquid crystal panel 100 impaired because of collision in handling process because of locating inaccuracy easily.Therefore, the present invention by second knock hole 236 on the higher limit assembly 230 of moulding accuracy rate as the location benchmark in the automation course of processing.For example, the registration mast of board can stretch among second knock hole 236, with the online reference data as when location of registration mast, to make things convenient for actions such as mechanical arm grasps.
Liquid crystal panel 100 is positioned among the expanded material framework 210, because expanded material framework 210 machining tolerances are bigger, so have the problem of moulding failure to produce easily at slight part, the present invention further supports and location liquid-crystalline glasses 110 by bigger chimeric 220 of hardness.Chimeric 220 because hardness is bigger, do not have the problem of moulding failure, wherein chimeric 220 fixed part 224 is chimeric with expanded material framework 210,222 of contact arms are to stretch between circuit substrate 120 and the liquid-crystalline glasses 110, to support and location liquid-crystalline glasses 110, avoid liquid-crystalline glasses 110 slips and make flexible printed wiring board 130 impaired.
Also be furnished with a plurality of angles 211 of escaping at corner on the expanded material framework 210, to abdicate the angle that the space holds liquid-crystalline glasses 110, friction or the collision of the angle of avoiding liquid-crystalline glasses 110 during because of carrying is impaired.Expanded material framework 210 also includes a plurality of blocks 213, and block 213 contacts with the side surface of liquid-crystalline glasses 110, with location liquid-crystalline glasses 110.
Fig. 3 A is the three-dimensional view of the packing module of first embodiment of the invention.Can be the directly stacked mutually packing module 300 that become of a plurality of package buffering devices 200 has been saved packing devices such as needing the carton that uses and liner in the past, effectively reduces the space and promotes handling efficiency.
Fig. 3 B is the scheme drawing of the packing module of first embodiment of the invention.The fin 234 of limit assembly 230 can be coupling on the groove 212 of expanded material framework 210.Cushion rubber 150 can be stacked on the limit assembly 230 of carrier alternately with liquid crystal panel 100.Be fastened in the groove 212 by fin 234, can effectively avoid the two ends of limit assembly 230 to be dug, with fixed limit assembly 230 because of the liquid crystal panel 100 and the weight of cushion rubber 150.
When many groups package buffering device 200 was stacked, the liquid crystal panel 100 of the top in a plurality of liquid crystal panels 100 that carried on another carrier of the bottom surface of the carrier of each limit assembly 230 and its below maintained a spacing d between the two.In other words, a plurality of liquid crystal panels 100 of packaging are to be stacked on the limit assembly 230 (carrier) with cushion rubber 150 in each group package buffering device 200, and limit assembly 230 is for being suspended to by groove 212 and being fixed of fin 234 among the expanded material framework 210.
Thus, by liquid crystal panel 100 being suspended to the notion in the package buffering device 200, the liquid crystal panel 100 that each group is carried in package buffering device 200 and the weight of cushion rubber 150 can not be directly delivered to the liquid crystal panel 100 in the package buffering device 200 of its below, reduce liquid crystal panel 100 produces fragmentation because of load-bearing is overweight possibility.
Packing also includes over cap 240 in the module 300, and over cap 240 can engage with the expanded material framework 210 of the package buffering device 200 of the top, packs module 300 with fixing and packaging module 300 to make things convenient for bandage to walk around.In addition, over cap 240 more can be used as cover of dust, pollutes on liquid crystal panel 100 to avoid in handling process particulate to drop.The material of over cap 240 can be expanded material or other suitable material.
Fig. 4 is the decomposition view of second embodiment of the invention.Package buffering device 400 includes expanded material framework 410, chimeric 420, and limit assembly 430, wherein expanded material framework 410 can comprise a bottom surface 411, around a plurality of sidewalls 413 of bottom surface 411, an and fixing projection 415.Fixedly projection 415 can be arranged on the bottom surface 411 and be adjacent to one of them sidewall 413.Chimeric 420 1 end is sticked in fixedly projection 415, and chimeric 420 the other end then stretches between liquid-crystalline glasses 110 and the circuit substrate 120 (referring to Fig. 1).Limit assembly 430 be sleeved on fixedly projection 415 with chimeric 420 on.Wherein chimeric 420 the hardness and the hardness of limit assembly 430 are all greater than the hardness of expanded material framework 410.A plurality of liquid crystal panels can be stacked on the bottom surface 411.
Expanded material framework 410 can have embedded hole 414 and holding part 416.Can include fixed part 424, contact arm 422 for chimeric 420, and the neck 426 that is connected and fixed portion 424 and contact arm 422.Fixed part 424 engages with embedded hole 414, and 416 of holding part are clamped neck 426 and prevented that fixed part 424 from skidding off embedded hole 414.422 of contact arms are to stretch between liquid-crystalline glasses and the circuit substrate.430 of limit assemblies have the flange 434 corresponding to contact arm 422.When limit assembly 430 was socketed on fixedly projection 415 with chimeric 420, contact arm 422 was contained among the flange 434.Flange 434 is touched arm 422 and supports and contact with liquid-crystalline glasses, with immobile liquid crystal glass 110.
Fixedly projection 415 also includes a plurality of first knock holees 418, includes a plurality of second knock holees 432 on the limit assembly 430.Second knock hole 432 is to be provided with corresponding to first knock hole 418, when socket limit assembly 430 is on fixing projection 415, first knock hole 418 is engaged with second knock hole 432.
Because the material of expanded material framework 410 has the uppity shortcoming of working accuracy, therefore, add man-hour carrying out automation, if directly with first knock hole 418 on the expanded material framework 410 as the location benchmark, cause liquid crystal panel 100 (referring to Fig. 1) impaired because of collision in handling process because of locating inaccuracy easily.Therefore, the location benchmark during the present invention processes as automation by second knock hole 432 on the higher limit assembly 430 of moulding accuracy rate.For example, the registration mast of board can stretch among second knock hole 432, with the online reference data as when location of registration mast, to make things convenient for actions such as mechanical arm grasps.
Fig. 5 is the scheme drawing of the packing module of second embodiment of the invention.Packing module 500 includes stacked many groups package buffering device 400.Wherein a plurality of liquid crystal panels 100 can be stacked on the bottom surface 411 of expanded material framework 410 alternately with cushion rubber 150.Wherein the liquid crystal panel of the top maintains spacing d in a plurality of liquid crystal panels 100 of being carried of the bottom surface 411 of each expanded material framework 410 and the bottom surface 411 of the expanded material framework 410 of its below.Like this, the liquid crystal panel 100 that each group is carried in package buffering device 400 and the weight of cushion rubber 150 can not be directly delivered to the liquid crystal panel 100 in the package buffering device 400 of its below, reduce liquid crystal panel 100 produces fragmentation because of load-bearing is overweight possibility.
Packing more includes over cap 440 in the module 500, and over cap 440 can engage with the expanded material framework 410 of the package buffering device 400 of the top, packs module 500 with fixing and packaging module 500 to make things convenient for bandage to walk around.In addition, over cap 440 more can be used as cover of dust, pollutes on liquid crystal panel 100 to avoid in handling process particulate to drop.The material of over cap 440 can be expanded material or other suitable material.
Fig. 6 is the decomposition view of third embodiment of the invention.Package buffering device 600 can include the expanded material framework 610 of hollow structure, chimeric 620, limit assembly 630, and metal framework 650.Be embedded in expanded material framework 610 for wherein chimeric 620, limit assembly 630 is set on expanded material framework 610, chimeric 620 and the metal framework 650.Wherein chimeric 620 the hardness and the hardness of limit assembly 630 are all greater than the hardness of expanded material framework 610.
Metal framework 650 includes hollow framework 652 and at least one moulding 654, and moulding 654 is disposed between the opposite side of hollow framework 652.Metal framework 650 can be in order to support limit assembly 630, to strengthen the load capacity of limit assembly 630.Wherein moulding 654 preferably is positioned at the below of hollow framework 652, interferes limit assembly 630 to avoid moulding 654, and it is not steady that limit assembly 630 is placed.Metal framework 650 wherein has a track 612 with ccontaining hollow framework 652 for being embedded among the expanded material framework 610 on the expanded material framework 610, have more a plurality of holes 614 on the track 612, passes for moulding 654.In addition, metal framework 650 also can be used in second embodiment, and the support strength of the bottom surface 411 of packing framework 410 is provided with assistance.
Similarly, this package buffering device 600 also can stackedly be the packing module, the liquid crystal panel of each group in package buffering device be for being stacked on the limit assembly 630, liquid crystal panel be suspended among the expanded material framework 610 and not with its below package buffering device 600 in stacked liquid crystal panel contact.
Fig. 7 A to 7E is respectively the scheme drawing of chimeric different embodiment among the present invention.Among Fig. 7 A, the fixed part 710a of chimeric 700a is square, contact arm 720a is the solid construction that is similar to boot-shaped, contact arm 720a can include the contact surface 722a of flat surfaces, neck 730a is connected and fixed 710a of portion and contact arm 720a, and wherein the width of neck 730a is less than the width of fixed part 710a.Among Fig. 7 B, the fixed part 710b of chimeric 700b is circular, contact arm 720b is the solid construction that is similar to boot-shaped, contact arm 720b includes the contact surface 722b of flat surfaces, neck 730b is connected and fixed 710b of portion and contact arm 720b, and wherein the width of neck 730b is less than the width of fixed part 710b.Among Fig. 7 C, the fixed part 710c of chimeric 700c is square, contact arm 720c for the hollow structure that is similar to boot-shaped so that elasticity preferably to be provided, contact arm 720c includes the contact surface 722c of flat surfaces, neck 730c is connected and fixed 710c of portion and contact arm 720c, and wherein the width of neck 730c is less than the width of fixed part 710c.Among Fig. 7 D, the fixed part 710d of chimeric 700d is square, and contact arm 720d is the list structure of bending, and contact arm 720d includes the contact surface 722d of flat surfaces, neck 730d is connected and fixed 710d of portion and contact arm 720d, and wherein the width of neck 730d is less than the width of fixed part 710d.Among Fig. 7 E, the fixed part 710e of chimeric 700e is square, contact arm 720e for the hollow structure that is similar to boot-shaped so that elasticity preferably to be provided, contact arm 720e includes the contact surface 722e of flat surfaces.Contact arm 720e also includes elastic construction 724e, with the elasticity of further lifting contact arm 720e.Neck 730e is connected and fixed 710e of portion and contact arm 720e, and wherein the width of neck 730e is less than the width of fixed part 710e.
By above preferred embodiment as can be known, the present invention has following advantage.Package buffering device of the present invention can directly stackedly become the packing module, reduces the use of packing such as carton or liner, and the space when effectively saving carrying is to promote handling efficiency.The hardness of chimeric hardness and limit assembly is all greater than the hardness of expanded material framework in the package buffering device.The expanded material framework can provide good buffering effect, and higher chimeric of hardness can stretch between liquid-crystalline glasses and the circuit substrate to reach the purpose that supports liquid-crystalline glasses, the benchmark when the higher limit assembly of hardness then can be used as the automation location.In addition, liquid crystal panel is for hanging in each package buffering device, and the weight of the liquid crystal panel in each package buffering device can directly not be passed on the liquid crystal panel in the package buffering device of its below.
Though should be pointed out that invention has been described by above-mentioned embodiment, yet the present invention also can have other numerous embodiments.Without departing from the spirit and scope of the present invention; those of ordinary skill in the art obviously can make various corresponding changes and distortion to the present invention, but these changes and distortion all should belong in the scope that claims of the present invention and equivalent thereof protect.