CN102554390A - Soldering iron - Google Patents
Soldering iron Download PDFInfo
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- CN102554390A CN102554390A CN2011103746231A CN201110374623A CN102554390A CN 102554390 A CN102554390 A CN 102554390A CN 2011103746231 A CN2011103746231 A CN 2011103746231A CN 201110374623 A CN201110374623 A CN 201110374623A CN 102554390 A CN102554390 A CN 102554390A
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Abstract
The invention provides a soldering iron, comprising an iron core, a heater shell configured to surround the perimeter of a trunk part of the iron core and provided with an electric heater inside, an iron shell configured to surround the perimeter of the heater shell and used for fixing the iron core on the heater shell, a temperature sensor formed by housing a temperature detection element and a lead in a slim cylindrical sensor shell and arranged the temperature detection element on the front end of the sensor shell, so as to form a rod-shaped sensor with the temperature detection element, wherein the temperature sensor is inserted into the heater shell in a free displacement way and the force is applied on the front end side of the temperature sensor by a sensor spring, therefore the temperature detection element is embedded into a sensor insertion hole of the iron core and elastically contacted with the iron core.
Description
Technical field
The present invention relates to the employed soldering iron of soldering of the various electronic units of semiconductor chip etc.
Background technology
Carry out at automatic or manual using the soldering iron of heater usually under the situation of soldering of various electronic units of semiconductor chip etc. with electric heating formula.This soldering iron has iron core made of copper and the above-mentioned heater that is used for this iron core is heated usually; The metastomium that this iron core made of copper is used by heat conduction constitutes with the flatiron head that is used to carry out soldering, makes the fusion of wire scolding tin carry out soldering through using by the flatiron head of the warmed-up above-mentioned iron core of this heater.
In order to use above-mentioned soldering iron to carry out high-quality soldering expeditiously, need the temperature of monitoring flatiron head to make the temperature of flatiron head always keep constant.Therefore; In the past as following patent documentation 1 is disclosed; Detect the temperature of flatiron head with temperature sensor (detector unit), make heater, disconnection according to the difference of this detected temperatures and design temperature, thereby make the temperature maintenance of flatiron head constant.
But; In above-mentioned example in the past; Because will directly be housed in by the detector unit that thermistor etc. constitutes in the inner sensor installing hole of iron core, therefore, the installment state of this detector unit is unstable; Under the situation that makes it to rotate for iron core is positioned, during automatic brazing, make soldering iron inferior with the situation of high-speed displacement; This detector unit becomes bad or easy easily with contacting of this iron core and misplaces, in addition, owing to will be drawn out to the outside from the inner space of the sensor installing hole through soldering iron from the lead of this detector unit; Therefore, exist this lead crooked or reverse and cause the property held variation, also receive the such problem of influence easily from the heat of heater.
Patent documentation 1: japanese kokai publication sho 55-112165 communique
Summary of the invention
The objective of the invention is to temperature sensor is formed easy operation and can be simple, reliable and with stable posture temperature sensor is installed on the soldering iron, and temperature sensor is also contacted with solder horn reliably.
Soldering iron of the present invention to achieve these goals is characterised in that; This soldering iron has: iron core; It has metastomium that is used for heat conduction and the flatiron head that is used to carry out soldering, has the sensor patchhole that extends along the axis direction of soldering iron in the inside of this iron core; Heater housing cylindraceous, it has and is used for electric heater that above-mentioned iron core is heated, and has in the part of periphery and to cut externally threaded installation portion, and this heater housing cylindraceous sets the periphery for the metastomium that surrounds above-mentioned iron core; Flatiron housing cylindraceous; It sets to surrounding the periphery of above-mentioned heater housing; Fastening is in above-mentioned iron core; Rearward end at this flatiron housing cylindraceous has the threaded collar that can rotate freely, through this threaded collar is threadedly connected to the installation portion of above-mentioned heater housing and above-mentioned iron core is fixed in above-mentioned heater housing; Temperature sensor; Through accommodating detector unit and lead in the inside of the sensor housing of processing elongated tubular and the said temperature detecting element being configured in the front end of this sensor housing; And be formed on the form that front end has the bar-shaped sensor of temperature detecting part; Through with temperature sensor with can along the mode of above-mentioned axis free displacement insert the inside of above-mentioned heater housing and with the sensor spring to this temperature sensor towards the front application of force, thereby make the said temperature test section embed the sensor patchhole of above-mentioned iron core interior and with this iron core Elastic Contact.
Adopt the specific embodiment of the present invention; The rearward end of the sensor housing of said temperature sensor is can be supported on the sensor guide that is formed on the above-mentioned heater housing along the mode of the free displacement of axis direction; On the sensor housing, be fixed with spring base, between this spring base and the sensor guiding piece, be folded with the sensor spring.
In this case, be preferably, above-mentioned spring base and sensor spring are covered by above-mentioned heater housing, and, being preferably, the sensor guiding piece is made up of the plate that is installed in the end of above-mentioned heater housing with the mode of radially crossing this heater housing.
In addition; In the present invention; Be preferably; Be formed with the abutting part of the ring-type of the rearward end butt that supplies above-mentioned iron core in the inside of above-mentioned heater housing, on a side of the rearward end of above-mentioned iron core and above-mentioned abutting part and the opposing party, be formed with the recess and the projection of the location of the direction of rotation that is used to carry out above-mentioned iron core, this recess and projection are only set above-mentioned iron core a chimeric each other mode of angle when axis revolves three-sixth turn.
In this case, be preferably, above-mentioned recess and projection respectively are formed with two, and these two recesses and two projections set on a side of the rearward end of above-mentioned iron core and above-mentioned abutting part and the opposing party, being positioned at respect to the asymmetrical each other position of above-mentioned axis.
In addition; In the present invention; Be preferably, not with recess when chimeric, the threaded collar of above-mentioned flatiron housing is positioned at the position that separates along the installation portion of above-mentioned axis direction and above-mentioned heater cap in above-mentioned projection; When above-mentioned projection and recess were chimeric, the threaded collar of above-mentioned flatiron housing can be threaded with this installation portion.
Adopt the present invention; Temperature sensor is formed the bar-shaped sensor that has temperature detecting part at front end; It is inner to utilize the sensor spring that this temperature sensor application of force is provided in the heater housing with it; The temperature detecting part that makes front end in the sensor patchhole of iron core with this iron core Elastic Contact, therefore, not only temperature sensor is formed the shape that is very easy to operation; And can be simple, reliable and temperature sensor is installed in the soldering iron, and can obtain the good effect that contacts reliably with iron core with stable posture.
Description of drawings
Fig. 1 is the stereogram of soldering iron of the present invention.
Fig. 2 is the longitudinal section of Fig. 1.
Fig. 3 is the exploded view of Fig. 1, is the figure that has omitted the flatiron housing.
Fig. 4 is the stereogram of heater housing.
Fig. 5 is the amplification view that has omitted the part of temperature sensor.
The specific embodiment
Accompanying drawing is represented an embodiment of soldering iron of the present invention, and this soldering iron is the type that is installed on the enterprising enforcement usefulness of work jibs of automatic brazing device (soldering robot).
Can know from Fig. 1-Fig. 3; Above-mentioned soldering iron has the iron core 1 that is used for when soldering, making the fusion of wire scolding tin, utilize heater housing cylindraceous 2 that 5 pairs of these iron cores 1 of built-in electric heater heat, be used for above-mentioned iron core 1 is fixed in the flatiron housing 3 cylindraceous of this heater housing 2 and is used to detect the slender rod shaped temperature sensor 4 of temperature of the flatiron head 1a of above-mentioned iron core 1, and these iron cores 1, heater housing 2, flatiron housing 3 and temperature sensor 4 are that in fact the center is configured to concentric shape with the axis L of this soldering iron.
Above-mentioned iron core 1 forms through the above-mentioned flatiron head 1a that forms the columniform metastomium 1b that is used for heat conduction and the thin shape in top that is used to carry out soldering with the good copper of thermal conductivity; And on the outer surface of above-mentioned iron core 1, coat the plating iron layer (not shown) as the protection tunicle, the fore-end of above-mentioned flatiron head 1a is the wet side 1c of scolding tin.Part in the periphery of this iron core 1 is formed with the fastening stage portion 8 that is formed by radial difference, the fastening portion 9 of the front end of above-mentioned flatiron housing 3 from the fastening of flatiron head 1a side in this fastening stage portion 8.
In addition, be formed with the sensor patchhole 10 of the circle of extending along the axis direction of this iron core 1 in the inside of above-mentioned iron core 1, said temperature sensor 4 inserts in this sensor patchhole 10 with the mode that can freely plug.This sensor patchhole 10 constitutes towards the path hole 10b of portion that the front end of this flatiron head 1a extends in the inside of above-mentioned flatiron head 1a by the big footpath 10a of hole portion that extends towards above-mentioned flatiron head 1a in the inside of this metastomium 1b from the rearward end of above-mentioned metastomium 1b with from the front end of the 10a of this big footpath hole portion, and the front end of this path hole 10b of portion does not extend through the front end of above-mentioned flatiron head 1a and near the central portion of the inner axis L direction of this flatiron head 1a, stops.The internal diameter of the above-mentioned path hole 10b of portion is a bit larger tham the external diameter of said temperature sensor 4.
Rearward end at above-mentioned iron core 1; With chimeric from the rearward outstanding mode of this iron core 1, be fixed with metal cap 11 cylindraceous; Be formed with the projections 13 common recesses 12 that constitute detent mechanisms inner in the rearward end of this cap 11, the location of the direction of rotation when utilizing the detent mechanism that constitutes by this projection 13 and recess 12 to carry out that above-mentioned iron core 1 is fixed in above-mentioned heater housing 2 with being formed on above-mentioned heater housing 2.Above-mentioned recess 12 is formed at two positions of the circumferencial direction of above-mentioned cap 11, and these positions are that the center with respect to iron core 1 is the asymmetrical position of axis L of soldering iron.In embodiment illustrated, two recesses 12 are with the central angle configuration of 90 degree, but so long as the central angle beyond 180 degree get final product, also can be 90 degree central angles in addition.
As shown in Figure 5; Said temperature sensor 4 forms as follows: across the packing material 18 of the electrical insulating property that is made up of magnesia, aluminium oxide etc.; With detector unit 16 and lead 17 to be housed in the inside of the metal sensor housing 15 of elongated and straight tubular with the sensor housing 15 non-contacting states; And said temperature detecting element 16 is configured in the front end of this sensor housing 15, thereby said temperature sensor 4 is formed the bar-shaped sensor that front end has temperature detecting part 4a.Above-mentioned lead 17 is exported to the outside by the rear end from the sensor housing 15, can be connected with control device.As said temperature detecting element 16, for example can use thermocouple.
In Fig. 1-Fig. 4; Above-mentioned heater housing 2 is made up of hear resistances such as stainless steel and the good raw metal of thermal conductivity; The urceolus 20 that utilizes big footpath forms with the inner core 21 that is inside, leading section and this urceolus 20 incorporate paths that concentric shape is provided in this urceolus 20 has dual cylindrical structure; Be built-in with above-mentioned electric heater 5 in the heater chamber 22 of the ring-type between the periphery of interior week that is formed at above-mentioned urceolus 20 and inner core 21; Exported to the outside of heater housing 2 from the lead 23 of this electric heater 5, the plug (not shown) that is connected with electric supply installation is installed at line end.
Above-mentioned electric heater 5 can through will be for example nichrome wire be provided in the above-mentioned heater chamber 22 with the mode of the periphery that is wrapped in above-mentioned inner core 21 with electric insulating state and constitute.
Above-mentioned heater housing 2 is the periphery that concentric shape surrounds the metastomium 1b of above-mentioned iron core 1; To supply to this metastomium 1b from the outer peripheral face side of this metastomium 1b from the heat of above-mentioned electric heater 5, the flatiron head 1a of above-mentioned iron core 1 extends from the front end of this heater housing 2.Be formed with in the bosom position of this heater housing 2 that to supply the rearward end of above-mentioned iron core 1 be the circular abutting part 25 of the rearward end butt of cap 11, on the face of a side of 11 butts of above-mentioned cap of this abutting part 25, be formed with the above-mentioned projection 13 of radially extending along this abutting part 25.This projection 13 is formed on two positions, and these configurations are that the center with respect to heater housing 2 is the asymmetrical configuration of axis L of soldering iron, and is the recess 12 corresponding positions with above-mentioned iron core 1.In embodiment illustrated, above-mentioned two projections 13 set across the central angle of 90 degree.And,, can carry out the location of the direction of rotation of above-mentioned iron core 1 through this projection 13 and above-mentioned recess 12 tablings.
Through form above-mentioned projection 13 and recess 12 with above-mentioned such configuration; Make above-mentioned iron core 1 around axis L when three-sixth turn is revolved in certain position; Above-mentioned projection 13 has only one with the chimeric each other angle (position) of recess 12 in this scope; Therefore, can with above-mentioned iron core 1 always be fixed on direction of rotation a position (towards).As a result, for example the wet side 1c at the scolding tin of flatiron head 1a has under the situation of directionality, do not worry yet can mistaken this wet side 1c the fixing iron core 1 towards ground, can with this iron core 1 always be fixed as correct towards.
Periphery at above-mentioned heater housing 2; The position of leaning on rearward end at this heater housing 2; Be formed with the installation portion 26 that processes external screw thread 26a in periphery; In addition, the rearward end of this heater housing 2 be formed with to the outstanding flange shape arm installation portion 27 of the rectangular direction of the axis of this heater housing 2, utilize this arm installation portion 27 that soldering iron is installed on the work jibs of soldering robot.
Said temperature sensor 4 is can be the central part that the mode of the free displacement of axis L of soldering iron is assembled in this heater housing 2 along the axis of above-mentioned heater housing 2.Promptly; The rearward end of the sensor housing 15 through making this temperature sensor 4 runs through the support holes 28a of the sensor guide 28 of being located at above-mentioned heater housing 2 ends, and with said temperature sensor 4 being supported on this sensor guide 28 along the mode of the free displacement of above-mentioned axis L direction.And; Between the spring base 29 of the ring-type that is fixed in the sensor housing 15 peripheries and the sensor guiding piece 28, be folded with spiral helicine sensor spring 30 with compressive state, utilizing 30 pairs of said temperature sensors 4 of this sensor spring is the above-mentioned iron core 1 side application of force towards front.Above-mentioned spring base 29 is covered by this heater housing 2 through the inside that is housed in above-mentioned heater housing 2 with sensor spring 30.
In addition; From the sensor guiding piece 28 outstanding partial fixings the stop part 31 of ring-type is arranged in the rearward end of the sensor housing 15; This stop part 31 connects with the outer surface of the sensor guiding piece 28, thereby has prevented forwards to come off from this heater housing 2 above-mentioned iron core 1 being installed on heater housing 2 last time said temperature sensor 4.The sensor guiding piece 28 is to be installed in the tabular member on the end face of above-mentioned heater housing 2 with the mode of radially crossing this heater housing 2.
And; Through above-mentioned iron core 1 is installed on the above-mentioned heater housing 2; The Temperature Detector 4a of said temperature sensor 4 front ends is embedded in the path hole 10b of portion of sensor patchhole 10 of above-mentioned iron core 1, and the leading section of the 10b of portion is pressed on above-mentioned iron core 1 by the active force elasticity of the sensor spring 30 in this path hole.
Above-mentioned flatiron housing 3 has stable on heating raw metal by stainless steel etc. and constitutes; Above-mentioned flatiron housing 3 is through being formed with the above-mentioned fastening portion 9 that is used for fastening stage portion 8 fastenings of above-mentioned iron core 1 with the front end pathization and at front end; In the rearward end of this flatiron housing 3, be equipped with in the threaded collar 32 that cuts internal thread 32a interior week with free rotation mode.Be provided with many grooves 33 of anti-skidding usefulness along axis direction in the periphery of this threaded collar 32.
And; Above-mentioned iron core 1 is being inserted its inside from the front of above-mentioned heater housing 2, the fore-end of temperature sensor 4 is embedded under the state in the sensor patchhole 10 of this iron core 1; The front of above-mentioned flatiron housing 3 from above-mentioned iron core 1 is enclosed within on this heater housing 2; The projection 13 of recess 12 and above-mentioned abutting part 25 that makes this iron core 1 is chimeric each other and carry out the location of the direction of rotation of this iron core 1, then with threaded collar 32 screw fixed of flatiron housing 3 in the installation portion 26 of heater housing 2.So; The fastening portion 9 of the front end of above-mentioned flatiron housing 3 presses on above-mentioned abutting part 25 with fastening stage portion 8 fastenings of iron core 1 with this iron core 1; Therefore; This iron core 1 is clamped and fixed between this fastening portion 9 and the above-mentioned abutting part 25, and the temperature detecting part 4a of said temperature sensor 4 front ends is pressed on iron core 1 by the active force elasticity of sensor spring 30 and is in contact with it in the sensor patchhole 10.
At this; The degree of depth of the height of the axis L direction of above-mentioned projection 13 and the axis L direction of above-mentioned recess 12 forms following such size respectively: in this projection 13 during not with recess 12 tablings; Be part beyond the above-mentioned recess 12 of rearward end of iron core 1 when connecting with above-mentioned projection 13, above-mentioned threaded collar 32 is located at the position of separating with the installation portion 26 of heater housing 2 on the axis L direction and can not be threaded with this installation portion 26; When above-mentioned projection 13 and recess 12 were chimeric, above-mentioned threaded collar 32 can be threaded with this installation portion 26.Thus, can be reliably with above-mentioned iron core 1 always be fixed as regulation towards.
In the above-described embodiment; Above-mentioned recess 12 forms two respectively with projection 13; They are provided in respect to the asymmetrical position of the axis of iron core 1 and heater housing 2 (the axis L of soldering iron), but the quantity of above-mentioned recess 12 and projection 13 can be respectively more than 1 or 3.Under the situation that recess 12 and projection 13 more than 3 are set,, different with other central angles and need dispose with irregular central angle each other in order to make at least one central angle with this recess 12 and the projection 13 central angle configuration uniformly-spaced promptly to equate respectively.
In addition, also can on heater housing 2, form above-mentioned recess 12, on iron core 1, form projection 13.
In addition, the soldering iron of above-mentioned embodiment is the type that is installed on the enterprising enforcement usefulness of work jibs of automatic brazing device, but the present invention also can be applicable to hand-held soldering iron.
Description of reference numerals
1 iron core, 1a flatiron head, 1b metastomium, 2 heater housings, 3 flatiron housings, 4 temperature sensors, 4a temperature detecting part; 5 electric heaters, 10 sensor patchholes, 12 recesses, 13 projections, 15 sensor housings, 16 detector units; 17 leads, 20 urceolus, 21 inner cores, 25 abutting parts, 26 installation portions, 26a external thread part; 28 sensor guide, 29 spring bases, 30 sensor springs, 31 stop parts, 32 threaded collar, L axis.
Claims (7)
1. a soldering iron is characterized in that, this soldering iron has:
Iron core, it has metastomium that is used for heat conduction and the flatiron head that is used to carry out soldering, has the sensor patchhole that extends along the axis direction of soldering iron in the inside of this iron core;
Heater housing cylindraceous, it has and is used for electric heater that above-mentioned iron core is heated, and has in the part of periphery and to cut externally threaded installation portion, and this heater housing cylindraceous sets the periphery for the metastomium that surrounds above-mentioned iron core;
Flatiron housing cylindraceous; It sets to surrounding the periphery of above-mentioned heater housing; Fastening is in above-mentioned iron core; Rearward end at this flatiron housing cylindraceous has the threaded collar that can rotate freely, through this threaded collar is threadedly connected to the installation portion of above-mentioned heater housing and above-mentioned iron core is fixed in above-mentioned heater housing;
Temperature sensor; Through accommodating detector unit and lead in the inside of the sensor housing of processing elongated tubular and the said temperature detecting element being configured in the front end of this sensor housing; And form the form that has the bar-shaped sensor of temperature detecting part at front end; Through with temperature sensor with can along the mode of above-mentioned axis free displacement insert the inside of above-mentioned heater housing and with the sensor spring to this temperature sensor towards the front application of force, make the said temperature test section embed the sensor patchhole of above-mentioned iron core interior and with this iron core Elastic Contact.
2. soldering iron according to claim 1 is characterized in that,
The rearward end of the sensor housing of said temperature sensor is can be supported on the sensor guide that is formed on the above-mentioned heater housing along the mode of the free displacement of axis direction; On the sensor housing, be fixed with spring base, between this spring base and the sensor guiding piece, be folded with the sensor spring.
3. soldering iron according to claim 2 is characterized in that,
Above-mentioned spring base and sensor spring are covered by above-mentioned heater housing.
4. soldering iron according to claim 2 is characterized in that,
The sensor guiding piece is made up of the plate that is installed in the end of above-mentioned heater housing with the mode of radially crossing this heater housing.
5. according to each described soldering iron in the claim 1～4, it is characterized in that,
Be formed with the abutting part of the ring-type of the rearward end butt that supplies above-mentioned iron core in the inside of above-mentioned heater housing; On a side of the rearward end of above-mentioned iron core and above-mentioned abutting part and the opposing party, be formed with the recess and the projection of the location of the direction of rotation that is used to carry out above-mentioned iron core, this recess and projection are only set above-mentioned iron core a chimeric each other mode of angle when axis revolves three-sixth turn.
6. soldering iron according to claim 5 is characterized in that,
Above-mentioned recess and projection respectively are formed with two, and these two recesses and two projections set on a side of the rearward end of above-mentioned iron core and above-mentioned abutting part and the opposing party, being positioned at respect to the asymmetrical each other position of above-mentioned axis.
7. according to each described soldering iron in the claim 1～4, it is characterized in that,
In above-mentioned projection not with recess when chimeric; The threaded collar of above-mentioned flatiron housing is positioned at the position that separates along the installation portion of above-mentioned axis direction and above-mentioned heater housing; When above-mentioned projection and recess were chimeric, the threaded collar of above-mentioned flatiron housing can be threaded with this installation portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-272739 | 2010-12-07 | ||
| JP2010272739A JP5546436B2 (en) | 2010-12-07 | 2010-12-07 | Soldering iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102554390A true CN102554390A (en) | 2012-07-11 |
| CN102554390B CN102554390B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110374623.1A Active CN102554390B (en) | 2010-12-07 | 2011-11-23 | Soldering iron |
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| JP (1) | JP5546436B2 (en) |
| CN (1) | CN102554390B (en) |
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| CN103207028A (en) * | 2012-01-17 | 2013-07-17 | 太洋电机产业株式会社 | Temperature Measuring Means Of Solder Tip And Temperature Sensor Used Therefor |
| CN103658987A (en) * | 2012-08-29 | 2014-03-26 | 阿派克斯品牌股份有限公司 | Soldering iron |
| CN106466752A (en) * | 2015-08-21 | 2017-03-01 | 白光株式会社 | Heating unit and heating tool |
| CN106914674A (en) * | 2015-12-28 | 2017-07-04 | 太洋电机产业株式会社 | Flatiron |
| CN110756941A (en) * | 2018-07-25 | 2020-02-07 | 白光株式会社 | Heating tool and method for manufacturing heating tool |
| CN110773834A (en) * | 2019-11-27 | 2020-02-11 | 深圳爱克莱特科技股份有限公司 | LED point light source wire welding machine and welding pressing mechanism thereof |
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| JP6803690B2 (en) | 2016-06-24 | 2020-12-23 | 太洋電機産業株式会社 | Soldering iron |
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| CN103207028A (en) * | 2012-01-17 | 2013-07-17 | 太洋电机产业株式会社 | Temperature Measuring Means Of Solder Tip And Temperature Sensor Used Therefor |
| CN103207028B (en) * | 2012-01-17 | 2015-09-02 | 太洋电机产业株式会社 | Solder horn temperature measuring equipment and for its temperature sensor |
| CN103658987A (en) * | 2012-08-29 | 2014-03-26 | 阿派克斯品牌股份有限公司 | Soldering iron |
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| CN110756941A (en) * | 2018-07-25 | 2020-02-07 | 白光株式会社 | Heating tool and method for manufacturing heating tool |
| CN111975157A (en) * | 2019-05-21 | 2020-11-24 | 深圳市纳泽科技有限公司 | Oxidation-resistant corrosion-resistant soldering bit at high temperature and manufacturing method thereof |
| CN110773834A (en) * | 2019-11-27 | 2020-02-11 | 深圳爱克莱特科技股份有限公司 | LED point light source wire welding machine and welding pressing mechanism thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5546436B2 (en) | 2014-07-09 |
| CN102554390B (en) | 2015-03-04 |
| JP2012121043A (en) | 2012-06-28 |
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