CN1701489A - Manufacturing method of motor - Google Patents
Manufacturing method of motor Download PDFInfo
- Publication number
- CN1701489A CN1701489A CN 200480001011 CN200480001011A CN1701489A CN 1701489 A CN1701489 A CN 1701489A CN 200480001011 CN200480001011 CN 200480001011 CN 200480001011 A CN200480001011 A CN 200480001011A CN 1701489 A CN1701489 A CN 1701489A
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- China
- Prior art keywords
- phase coil
- coil
- phase
- insulation
- terminal
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0025—Shaping or compacting conductors or winding heads after the installation of the winding in the core or machine ; Applying fastening means on winding heads
- H02K15/0037—Shaping or compacting winding heads
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/346—Testing of armature or field windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
Abstract
Quality can be assured even when a motor is downsized and used at higher voltage by introducing an interphase insulation test after the steps of providing multiple phase coils in a core and an interphase insulator between individual phase coils. A method of producing a motor comprising the first step group of providing multiple phase coils in a core and an interphase insulation sheet between individual phase coils, and the second step group of sequentially carrying out the finish-forming step of forming a coil end to a specified size, the power line caulking step of individually caulking one end of each phase coil by a terminal to form a power line, the lacing step of tying a coil end with a yarn, the interphase insulation testing step of inspecting insulation between individual phase coils, the neutral line caulking step of integrally caulking the other end of each phase coil by a terminal to form a neutral line, the general insulation testing step of inspecting insulation between a core and each phase coil, and the coil fixing step of filling gaps between individual phase coils with a filler to fix the individual phase coils.
Description
Technical field
The present invention relates to a kind of manufacture method of motor of minitype high voltageization of suitable motor.
Background technology
In the past, as the manufacture method of motor, for example had to comprise in each groove of iron core and to insert coil and polyphase winding is set, and the first operation group of interphase insulator was set between each phase coil; Fix with the size that coil-end is configured as regulation, carry out the technology of each phase coil and the second operation group of the Insulation Test of iron core.
Wherein, in following patent documentation 1, the first operation group is disclosed: first phase coil is assembled into iron core, inserts interphase insulator thereafter, be assembled into next phase coil again.The second operation group of carrying out after the first operation group generally as shown in Figure 4, comprises smart forming process, staking process, tightens operation, Insulation Test operation and coil stationary operation.Wherein, in smart forming process, coil-end is configured as the size of regulation.In staking process, an end of each phase coil is riveted on individually on the terminal as power line, the other end one of each phase coil is riveted on the terminal as the neutral line.In tightening operation, use fixedly wire bushing end of line bundle.In the Insulation Test operation, check the short circuit of unshakable in one's determination and each phase coil and withstand voltage etc.In coil regular worker preface, the gap-filled resin between each phase coil etc.As the coil stationary operation, japanning method and compression moulding are representative.
Patent documentation 1 spy open the 2002-354763 communique (the 1st～4 page, Fig. 1～Fig. 7)
Yet, follow in recent years requirement to the minitype high voltageization of motor, in order to guarantee the quality of motor,, also must guarantee the insulation (phase insulation) between each phase coil except the insulation between the scar, each phase coil and the iron core that guarantee each phase coil.Therefore, as the index of the situation of packing into of representing interphase insulator (the whether suitably distance between hold-in winding), need carry out the phase insulation test.The phase insulation test is to apply voltage between each phase coil, measures the test of the leakage current of this moment, but owing to can not measure down at the interconnected state of each phase coil (neutral point bonding state), therefore need test before in conjunction with neutral point.
Yet, in the above-mentioned second operation group, behind staking process, only check the short circuit of unshakable in one's determination and each phase coil and withstand voltage etc. Insulation Test operation, do not check the insulation (phase insulation test) between each phase coil.In addition, in the above-mentioned second operation group, in staking process, because the other end (centerline) one of each phase coil is riveted on the terminal and combination, thereby do not carry out the phase insulation test thereafter.In addition, even carry out the phase insulation test, also need carry out under the state after tightening operation.
The present invention In view of the foregoing makes, its purpose is to provide a kind of manufacture method of motor, by polyphase winding being set on the iron core and after the operation that interphase insulator is set between each phase coil, importing the phase insulation test, can guarantee that motor follows the quality of minitype high voltageization.
Summary of the invention
For reaching above-mentioned purpose, the present invention's first technical scheme is a kind of manufacture method of motor, has: the first operation group is provided with polyphase winding, and between each phase coil interphase insulator is set in the groove of iron core; With the second operation group, after the first operation group, carry out, comprise and carry out following operation: be riveted on to an end of the coil of each phase of major general on the terminal and as the power line staking process of power line, be riveted on the terminal with another end and as the neutral line staking process of the neutral line each phase coil, its main points are, in the preceding operation of the neutral line staking process in the second operation group, carry out the phase insulation The test procedure between each phase coil.
According to the formation of foregoing invention, staking process that can underway property line becomes the insulation of checking before the short-circuit condition between each phase coil.
For reaching above-mentioned purpose, second technical scheme of the present invention is a kind of manufacture method of motor, has: the first operation group is provided with polyphase winding, and between each phase coil interphase insulator is set in the groove of iron core; The second operation group is carried out after the first operation group, fixes after coil-end is configured as prescribed level, carry out each phase coil and Insulation Test unshakable in one's determination, its main points are that the second operation group is carried out following operation in turn: the smart forming process that is used for coil-end is configured as prescribed level; Be used for that a end with each phase coil is riveted on individually on the terminal and as the power line staking process of power line; Be used to use the operation of tightening of line harness coil-end; Be used to check the phase insulation The test procedure of the insulation between each phase coil; Another end one of each phase coil is riveted on the terminal and as the neutral line staking process of the neutral line; Be used to check the integral insulation The test procedure that insulate between iron core and each phase coil; And the gap that is used between each phase coil fills filler, fixes the coil stationary operation of each phase coil.
Formation according to foregoing invention, owing to carry out the second operation group with smart forming process, power line staking process, the order of tightening operation, phase insulation The test procedure, neutral line staking process, integral insulation The test procedure and coil stationary operation, thereby can be riveted on the terminal and before becoming short-circuit condition in the other end of each phase coil one, actually check the phase insulation test of insulating between each phase coil.Therefore, withstand voltage by between scar, each phase coil and the iron core of each phase coil of integral insulation test check not only, can also by between each phase coil of phase insulation test check to high-tension patience.
For reaching above-mentioned purpose, the 3rd technical scheme of the present invention is a kind of manufacture method of motor, and its main points are, repeat following operation in turn: the winding that inserts coil in the groove of iron core inserts operation; Be used to be provided with the middle forming process of inserting next phase coil requisite space; And be used to insert the interphase insulator insertion operation that is disposed at the interphase insulator between each phase coil, and carry out winding thereafter and insert operation and middle forming process, carry out following operation afterwards in turn: the smart forming process that is used for coil-end is configured as prescribed level; Be used for that a end with each phase coil is riveted on individually on the terminal and as the power line staking process of power line; Be used for the operation of tightening by line harness coil-end; Be used to check the phase insulation The test procedure of the insulation between each phase coil; Another end one of each phase coil is riveted on the terminal and as the neutral line staking process of the neutral line; Be used to check the integral insulation The test procedure that insulate between iron core and each phase coil; And the gap that is used between each phase coil fills filler, fixes the coil stationary operation of each phase coil.
Formation according to foregoing invention, except having the effect identical with the described invention of second technical scheme with first technical scheme, owing to carrying out smart forming process in turn, the power line staking process, tighten operation, the phase insulation The test procedure, neutral line staking process, before integral insulation The test procedure and the coil stationary operation, repeat winding in turn and insert operation, middle forming process and interphase insulator insert operation, carry out winding insertion operation and middle forming process after this, thereby can before next phase coil inserts, insert the interphase insulator that is fit to insert coil shape automatically.
According to first technical scheme and the described invention of second technical scheme,, can guarantee that motor follows the quality of minitype high voltageization by polyphase winding being set on the iron core and after the operation that interphase insulator is set between each phase coil, importing the phase insulation test.
According to the described invention of the 3rd technical scheme, invent identical effect except having with first technical scheme and second technical scheme, can also insert the automation of operation realization to phase insulation paper based on mechanical device.
Description of drawings
Fig. 1 is the flow chart of a part of the method for producing electric motor of an execution mode of expression.
Fig. 2 is the cutaway view of the assembled state of each phase coil of expression and phase insulation paper.
Fig. 3 is the equivalent circuit figure of stator.
Fig. 4 is the flow chart of a part of the method for producing electric motor of expression conventional example.
Embodiment
Below, an execution mode of the manufacture method that makes motor of the present invention being specialized with reference to accompanying drawing is elaborated.
At Fig. 1 the part of the manufacture method of motor is shown in flow chart.This manufacture method has as basic comprising: the first operation group, and in each groove of the iron core of motor, insert coil and polyphase winding is set, and between each phase coil, be provided as the phase insulation paper of interphase insulator; With the second operation group, after the first operation group, carry out, after being configured as prescribed level, coil-end fixes, carry out each phase coil and Insulation Test unshakable in one's determination.
In this execution mode, in the first operation group, repeat twice winding in turn and insert operation, middle forming process and interphase insulator insertion operation, carry out winding thereafter and insert operation and middle forming process.Just as shown in Figure 1, the first operation group comprises: forming process, first interphase insulator insertion operation, second winding process, the second insertion operation, the second middle forming process, second interphase insulator insertion operation, the 3rd winding process, the 3rd insert operation and the 3rd middle forming process in the middle of first winding process, the first insertion operation, first.
In first winding process, the U phase coil is wound on the bobbin, volume is placed in the employed anchor clamps of insertion of subsequent processing.Insert in the operation first, the U phase coil is inserted in the groove unshakable in one's determination.In the middle of first, in the forming process,, in above-mentioned groove, make above-mentioned U phase coil to its external diameter direction expansion for the space that the V phase coil that is provided as next phase coil inserts usefulness.Insert in the operation at first interphase insulator, be inserted in the interphase insulator that disposes between U phase coil and the V phase coil as next phase coil.
Then, in second winding process, the V phase coil is wound on the bobbin, volume is placed in the employed anchor clamps of insertion of subsequent processing.Insert in the operation second, the V phase coil is inserted in the groove unshakable in one's determination.In the middle of second, in the forming process,, in above-mentioned groove, make above-mentioned V phase coil to its external diameter direction expansion for the space that the W phase coil that is provided as next phase coil inserts usefulness.Insert in the operation at second interphase insulator, be inserted in the interphase insulator that disposes between V phase coil and the W phase coil as next phase coil.
Then, in the 3rd winding process, the W phase coil is wound on the bobbin, volume is placed in the employed anchor clamps of insertion of subsequent processing.Insert in the operation second, the W phase coil is inserted in the groove unshakable in one's determination.In the middle of the 3rd, in the forming process, carry out and the identical processing of the first and second middle forming process.
Carry out the first operation group as mentioned above.In this execution mode, winding of the present invention inserts operation and is made of first winding process and the first insertion operation.Similarly, winding of the present invention inserts operation and is made of second winding process and the second insertion operation, and winding of the present invention inserts operation and is made of the 3rd winding process and the 3rd insertion operation.
In this execution mode, the second operation group is carried out after the first operation group, fixes after coil-end being configured as the size of regulation, carries out each phase coil and Insulation Test unshakable in one's determination.Just as shown in Figure 1, the second operation group comprises: smart forming process, power line staking process, tighten operation, phase insulation The test procedure, neutral line staking process, integral insulation The test procedure and coil stationary operation.
At first in smart forming process, coil-end is configured as the size of regulation.Then in the power line staking process, an end of each phase coil is riveted on terminal individually and as power line.Just respectively an end of U phase coil, an end of V phase coil, an end of W phase coil are riveted on the metal terminal, obtain the power line of U phase, V phase and W phase.
Then, in tightening operation, use line that the coil-end harness of each phase coil is fixed.In the phase insulation The test procedure, check the insulation between each phase coil.In this phase insulation test, between each phase coil, apply high voltage, measure the leakage current of this moment.Measurement result according to this leakage current is checked phase insulation.In this execution mode, utilize each the phase power line that in preceding operation, obtains, check the insulation between insulation, U phase coil and the W phase coil between insulation, V phase coil and the W phase coil between U phase coil and the V phase coil respectively.
Then, in neutral line staking process, the other end one of each phase coil is riveted on terminal and as the neutral line.Just the other end one of the other end of the other end of U phase coil, V phase coil and W phase coil is riveted on the metal terminal and obtains the neutral line.
Then, in the integral insulation The test procedure, check the insulation between unshakable in one's determination and each coil.In this execution mode, utilize the neutral line that obtains in preceding operation, check the scar of withstand voltage, each phase coil between unshakable in one's determination and each phase coil etc.
Then in coil regular worker preface, filler such as potting resin in the gap between each phase coil and fix each phase coil.In this execution mode, adopt japanning method or compression moulding.
So as shown in Figure 2, U phase coil 2, V phase coil 3 and W phase coil 4 are assembled in unshakable in one's determination 1, are formed on the stator that is assembled into phase insulation paper 5 between each phase coil 2～4.In Fig. 2, the right-hand member of W phase coil 4 is represented coil-end 6.The equivalent circuit figure of this stator of expression in Fig. 3.An end of U phase coil 2, V phase coil 3 and W phase coil 4 becomes power line 2a, 3a, the 4a that is provided with terminal 7,8,9 respectively.Interosculating in terminal 10 in the other end of U phase coil 2, V phase coil 3 and W phase coil 4, becomes neutral line 2b, 3b, 4b.Configuration phase insulation paper 5 between each phase coil 2～4.
According to the manufacture method of the motor of above explanation, carry out the second operation group with smart forming process, power line staking process, the order of tightening operation, phase insulation The test procedure, neutral line staking process, integral insulation The test procedure and coil stationary operation.Therefore the actual phase insulation test of checking the insulation between each phase coil 2～4 can be riveted on the terminal 10 and before as short-circuit condition in the other end of each phase coil 2～4 one.Therefore, except between scar that can be by each phase coil 2～4 of integral insulation test check, each phase coil 2～4 and unshakable in one's determination 1 to high-tension withstand voltage, can also by between each phase coil 2～4 of phase insulation test check to high-tension patience.Its result can guarantee the insulation between each phase coil 2～4 scar, each phase coil 2～4 and unshakable in one's determination 1, can guarantee the phase insulation between each phase coil 2～4 in addition.By the test of such importing phase insulation, can guarantee to follow the quality of motor of the minitype high voltageization of motor.
In this execution mode, before carrying out the second operation group, in the first operation group, repeat winding in turn and insert operation, middle forming process and interphase insulator insertion operation, carry out winding thereafter and insert operation and middle forming process.Therefore can before inserting, next phase coil insert the interphase insulator 5 that is fit to insert coil shape automatically by mechanical device.As a result, can insert the automation of operation realization to first and second interphase insulator based on mechanical device.
And the present invention is not limited to above-mentioned execution mode, also can a part that constitute suitably be changed in the scope of the purport that does not break away from invention.
For example, in the above-described embodiment, as the first operation group, carry out first winding process, the first insertion operation, the first middle forming process, first interphase insulator insertion operation, second winding process, the second insertion operation, the second middle forming process, second interphase insulator insertion operation, the 3rd winding process, the 3rd insertion operation and the 3rd middle forming process in turn.Relative therewith, as the first operation group,, just can change the sequential scheduling of above-mentioned each operation so long as the operation group that interphase insulator is set between each phase coil in the polyphase winding is set on iron core.
Claims (3)
1. the manufacture method of a motor, have: the first operation group is provided with polyphase winding, and between each phase coil interphase insulator is set in the groove of iron core; With the second operation group, after the described first operation group, carry out, comprise and carry out following operation: be riveted on to an end of the coil of described each phase of major general on the terminal and as the power line staking process of power line, be riveted on the terminal with another end and as the neutral line staking process of the neutral line described each phase coil, it is characterized in that
In the preceding operation of the described neutral line staking process in the described second operation group, carry out the phase insulation The test procedure between described each phase coil.
2. the manufacture method of a motor, have: the first operation group is provided with polyphase winding, and between each phase coil interphase insulator is set in the groove of iron core; The second operation group is carried out after the described first operation group, fixes after coil-end is configured as prescribed level, carries out the Insulation Test of described each phase coil and described iron core, it is characterized in that,
The described second operation group is carried out following operation: the smart forming process that is used for described coil-end is configured as prescribed level in turn; Be used for that a end with described each phase coil is riveted on individually on the terminal and as the power line staking process of power line; Be used for the operation of tightening by the described coil-end of line harness; Be used to check the phase insulation The test procedure of the insulation between described each phase coil; Another end one of described each phase coil is riveted on the terminal and as the neutral line staking process of the neutral line; Be used to check the integral insulation The test procedure that insulate between described iron core and described each phase coil; And filler is filled, the coil stationary operation of fixing described each phase coil in the gap that is used between described each phase coil.
3. the manufacture method of a motor is characterized in that,
Repeat following operation in turn: the winding that inserts coil in the groove of iron core inserts operation; Be used to be provided with the middle forming process of inserting next phase coil requisite space; And be used to insert the interphase insulator that is disposed at the interphase insulator between each phase coil and insert operation, carry out described winding and insert operation and described middle forming process, carry out following operation afterwards in turn: the smart forming process that is used for described coil-end is configured as prescribed level thereafter; Be used for that a end with described each phase coil is riveted on individually on the terminal and as the power line staking process of power line; Be used for the operation of tightening by the described coil-end of line harness; Be used to check the phase insulation The test procedure of the insulation between described each phase coil; Another end one of described each phase coil is riveted on the terminal and as the neutral line staking process of the neutral line; Be used to check the integral insulation The test procedure that insulate between described iron core and described each phase coil; And filler is filled, the coil stationary operation of fixing described each phase coil in the gap that is used between described each phase coil.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP305989/2003 | 2003-08-29 | ||
| JP2003305989A JP4193640B2 (en) | 2003-08-29 | 2003-08-29 | Manufacturing method of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1701489A true CN1701489A (en) | 2005-11-23 |
| CN100377476C CN100377476C (en) | 2008-03-26 |
Family
ID=34269367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800010116A Expired - Fee Related CN100377476C (en) | 2003-08-29 | 2004-08-30 | Manufacturing method of motor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4193640B2 (en) |
| CN (1) | CN100377476C (en) |
| WO (1) | WO2005022721A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895175A (en) * | 2010-08-11 | 2010-11-24 | 珠海格力电器股份有限公司 | Method for manufacturing motor stator |
| CN103095073A (en) * | 2011-11-04 | 2013-05-08 | 苏州贝得科技有限公司 | Fixing method for motor winding end portion phase insulation pieces for refrigeration compressor |
| CN103460561A (en) * | 2011-04-01 | 2013-12-18 | 丰田自动车株式会社 | Stator of rotating electrical machine, method of manufacturing same, and apparatus for manufacturing same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4725325B2 (en) * | 2006-01-13 | 2011-07-13 | トヨタ自動車株式会社 | Winding sticking degree inspection method, sticking degree inspection apparatus, and rotating electric machine manufacturing method and manufacturing apparatus |
| JP5235634B2 (en) * | 2008-12-05 | 2013-07-10 | 日立オートモティブシステムズ株式会社 | Manufacturing method of rotating electrical machine |
| JP5525768B2 (en) * | 2009-06-30 | 2014-06-18 | 株式会社東芝 | Rotating electrical machine test method and manufacturing method |
| JP5426342B2 (en) * | 2009-12-03 | 2014-02-26 | 東芝産業機器製造株式会社 | Rotating electrical machine manufacturing method, stator and rotating electrical machine |
| DE102022110189B3 (en) | 2022-04-27 | 2023-10-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for testing the insulation strength of a stator of an electrical machine, in particular for a travel drive of a motor vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2590232B2 (en) * | 1988-09-14 | 1997-03-12 | 株式会社東芝 | Diagnosis method for electrical equipment insulation |
| JP2002034191A (en) * | 2000-07-14 | 2002-01-31 | Okuma Corp | Motor stator and manufacturing apparatus thereof |
| JP2002354763A (en) * | 2001-05-28 | 2002-12-06 | Oriental Motor Co Ltd | Method of inserting phase insulator |
| JP2003164093A (en) * | 2001-11-22 | 2003-06-06 | Aisin Aw Co Ltd | Connection method and structure of motor lead wire, and production method of three-phase motor |
-
2003
- 2003-08-29 JP JP2003305989A patent/JP4193640B2/en not_active Expired - Fee Related
-
2004
- 2004-08-30 CN CNB2004800010116A patent/CN100377476C/en not_active Expired - Fee Related
- 2004-08-30 WO PCT/JP2004/012887 patent/WO2005022721A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895175A (en) * | 2010-08-11 | 2010-11-24 | 珠海格力电器股份有限公司 | Method for manufacturing motor stator |
| CN101895175B (en) * | 2010-08-11 | 2012-09-05 | 珠海格力电器股份有限公司 | Method for manufacturing motor stator |
| CN103460561A (en) * | 2011-04-01 | 2013-12-18 | 丰田自动车株式会社 | Stator of rotating electrical machine, method of manufacturing same, and apparatus for manufacturing same |
| CN103095073A (en) * | 2011-11-04 | 2013-05-08 | 苏州贝得科技有限公司 | Fixing method for motor winding end portion phase insulation pieces for refrigeration compressor |
| CN103095073B (en) * | 2011-11-04 | 2015-08-19 | 苏州贝得科技有限公司 | The fixing means that refrigerant compressor motor winding overhang insulate mutually |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100377476C (en) | 2008-03-26 |
| JP4193640B2 (en) | 2008-12-10 |
| JP2005080359A (en) | 2005-03-24 |
| WO2005022721A1 (en) | 2005-03-10 |
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Granted publication date: 20080326 |