CN105337125A - Banana plug for electrical secondary terminal jack - Google Patents
Banana plug for electrical secondary terminal jack Download PDFInfo
- Publication number
- CN105337125A CN105337125A CN201510843721.3A CN201510843721A CN105337125A CN 105337125 A CN105337125 A CN 105337125A CN 201510843721 A CN201510843721 A CN 201510843721A CN 105337125 A CN105337125 A CN 105337125A
- Authority
- CN
- China
- Prior art keywords
- metal conductor
- conductor
- inclined surface
- stabilizer
- banana plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 235000018290 Musa x paradisiaca Nutrition 0.000 title claims abstract description 38
- 241000234295 Musa Species 0.000 title claims description 37
- 239000004020 conductor Substances 0.000 claims abstract description 145
- 239000002184 metal Substances 0.000 claims abstract description 120
- 239000003381 stabilizer Substances 0.000 claims description 35
- 230000001154 acute effect Effects 0.000 claims description 16
- 239000012212 insulator Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 abstract description 6
- 240000005561 Musa balbisiana Species 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
Landscapes
- Cable Accessories (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a banana plug for an electric secondary terminal jack, which comprises an external metal conductor, an internal metal conductor, an insulation body, a conductor connecting sheet and a lead, wherein the conductor connecting sheet is arranged on the insulation body; the external metal conductor is hollow tubular, and one end of the external metal conductor is fixed with the insulating body; the inner metal conductor penetrates into the pipeline of the outer metal conductor and is movably arranged in the insulating body, one end of the inner metal conductor, which is positioned in the insulating body, is connected with the lead, and the other end of the inner metal conductor is positioned in the pipeline of the outer metal conductor; the conductor connecting sheet is arranged between the external metal conductor and the internal metal conductor, and two ends of the conductor connecting sheet are respectively connected with the inner wall of the pipeline of the external metal conductor and the outer wall of the internal metal conductor, so that the external metal conductor and the internal metal conductor can be electrically conducted. By implementing the embodiment of the invention, at least one jack can be automatically matched, the frequency of manually replacing the plug is avoided, and the workload is reduced.
Description
Technical Field
The invention relates to the technical field of secondary side relay protection equipment, in particular to a banana plug for an electrical secondary terminal jack.
Background
At present, secondary side relay protection's terminal jack is mostly the special jack of fixed specification model, mainly there are two kinds of different specifications of 2mm and 4mm, however when testing secondary side relay protection equipment, because the plug with the corresponding test instrument of terminal box jack all is a fixed specification again, thereby appear unable appear with different jack assorted phenomenon, especially in some important tests (if carry out the electrified test of arrester), need get the signal through test instrument, the unmatched condition of joint and plug will appear, work load and test degree of difficulty have been increased.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a banana plug for electrical secondary terminal jacks, which can be automatically matched with at least one jack, avoid the frequency of manually replacing the plug and reduce the workload.
In order to solve the technical problem, an embodiment of the present invention provides a banana plug for an electrical secondary terminal jack, where the banana plug includes an external metal conductor, an internal metal conductor, an insulation body, a conductor connecting sheet, and a wire; wherein,
the external metal conductor is in a hollow tubular shape, and one end of the external metal conductor is fixed with the insulating body;
the inner metal conductor penetrates into the pipeline of the outer metal conductor and is movably arranged in the insulating body, one end, positioned in the insulating body, of the inner metal conductor is connected with the lead, and the other end of the inner metal conductor is positioned in the pipeline of the outer metal conductor;
the conductor connecting sheet is arranged between the external metal conductor and the internal metal conductor, and two ends of the conductor connecting sheet are respectively connected with the inner wall of the pipeline of the external metal conductor and the outer wall of the internal metal conductor, so that the external metal conductor and the internal metal conductor can be electrically conducted.
Wherein the banana plug further comprises a first plug-in stabilizer and/or a second plug-in stabilizer; wherein,
the first plug-in stabilizer is arranged on the outer wall of one end, far away from the insulating body, of the external metal conductor;
the second inserting stabilizer is arranged on the outer wall of one end, far away from the insulating body, of the inner metal conductor, a certain distance is reserved between the second inserting stabilizer and the conductor connecting sheet, and a gap with a certain length is reserved between the second inserting stabilizer and the inner wall of the pipeline of the outer metal conductor.
The first plugging stabilizer comprises a first inclined surface, a second inclined surface and a first plane for connecting the first inclined surface and the second inclined surface; wherein,
the first inclined plane and the second inclined plane respectively form an acute angle with the central axis of the external metal conductor.
Wherein an acute angle formed between the first inclined surface and the central axis of the outer metal conductor is equal to an acute angle formed between the second inclined surface and the central axis of the outer metal conductor.
The second plugging stabilizer comprises a third inclined surface, a fourth inclined surface and a second plane for connecting the third inclined surface and the fourth inclined surface; wherein,
the third inclined plane and the fourth inclined plane respectively form an acute angle with the central axis of the inner metal conductor;
a concave surface matched with the second plug-in stabilizer is formed on the inner wall of the pipeline of the inner metal conductor; the concave surface comprises a fifth inclined surface parallel to the third inclined surface, a sixth inclined surface parallel to the fourth inclined surface and a third plane parallel to the second plane.
Wherein an acute angle formed between the third slope and the central axis of the inner metal conductor is equal to an acute angle formed between the fourth slope and the central axis of the inner metal conductor.
The banana plug further comprises a wire end insulator with a certain length, the wire end insulator is a cylinder which is sleeved on the wire and movably mounted in a cavity formed in the insulation body, and a first bump and a second bump are formed at two opposite ends of the wire end insulator; wherein,
the first bump is held in the cavity and fixed with the inner metal conductor;
the second bump remains outside the insulative body.
Wherein the banana plug further comprises a spring; wherein,
the spring is positioned in the cavity and sleeved on the outer wall of the inner metal conductor, one end of the spring is fixed with the first bump, and the other end of the spring is pressed against the inner wall of the cavity.
The end face of one end, far away from the insulating body, of the external metal conductor is provided with a first conical surface.
And a second conical surface is arranged on the end surface of one end, far away from the insulating body, of the inner metal conductor.
The embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, the banana plug adopts the fixedly installed external metal conductor and the movably installed internal metal conductor, so that the banana plug is flexibly matched with the two jacks and is electrically communicated with the two jacks through the conductor connecting sheet, thereby avoiding the frequency of manually replacing the plug and reducing the workload.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic plan view of a banana plug for an electrical secondary terminal jack according to an embodiment of the present invention;
fig. 2 is a schematic plan view of an application scenario in a banana plug for an electrical secondary terminal jack according to an embodiment of the present invention;
fig. 3 is another schematic plan view of an application scenario in a banana plug for an electrical secondary terminal jack according to an embodiment of the present invention;
in the figure: 1-outer metal conductor, 11-concave surface, 111-fifth inclined surface, 112-sixth inclined surface, 113-third plane, 12-first conical surface, 2-inner metal conductor, 21-second conical surface, 3-insulating body, 31-cavity, 4-conductor connecting sheet, 5-wire, 6-first plug-in stabilizer, 61-first inclined surface, 62-second inclined surface, 63-first plane, 7-second plug-in stabilizer, 71-third inclined surface, 72-fourth inclined surface, 73-second plane, 8-wire end insulator, 81-first lug, 82-second lug and 9-spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, in a first embodiment of the present invention, a banana plug for an electrical secondary terminal jack is provided, which includes an outer metal conductor 1, an inner metal conductor 2, an insulating body 3, a conductor connecting sheet 4 and a lead 5; wherein,
the external metal conductor 1 is hollow tubular, and one end of the external metal conductor is fixed with the insulating body 3;
the inner metal conductor 2 penetrates into the pipeline of the outer metal conductor 1 and is movably arranged inside the insulating body 3, one end, positioned inside the insulating body 3, of the inner metal conductor 2 is connected with the lead 5, and the other end of the inner metal conductor is positioned in the pipeline of the outer metal conductor 1;
the conductor connecting sheet 4 is arranged between the external metal conductor 1 and the internal metal conductor 2, and two ends of the conductor connecting sheet are respectively connected with the inner wall of the pipeline of the external metal conductor 1 and the outer wall of the internal metal conductor 2, so that the external metal conductor 1 and the internal metal conductor 2 can be electrically conducted.
In the embodiment of the invention, the banana plug can be flexibly matched with two jacks for use, and the specific implementation is as follows: when the outer metal conductor 1 is used with a jack, the inner metal conductor 2 does not move and remains at the first position, as shown in fig. 2; secondly, when the inner metal conductor 2 is used in cooperation with another jack, the inner metal conductor 2 will move from the first position to the second position, for example, extend out of the outer metal conductor 1 for a certain length, as shown in fig. 3.
It should be noted that when the banana plug is used with two jacks respectively, the banana plug and the matched jack can be electrically connected effectively.
In order to further realize the firmness of connection with the jack and avoid the banana plug from falling off from the jack, the banana plug also comprises a first plug-in stabilizer 6 and/or a second plug-in stabilizer 7; wherein,
the first plug-in stabilizer 6 is arranged on the outer wall of one end of the external metal conductor 1 far away from the insulating body 3, and the first plug-in stabilizer 6 is used for strengthening the firm connection between the external metal conductor 1 and a matching jack thereof;
the second inserting stabilizer 7 is arranged on the outer wall of one end, far away from the insulating body 3, of the inner metal conductor 2, a certain distance is reserved between the second inserting stabilizer 7 and the conductor connecting sheet 4, a gap with a certain length is reserved between the second inserting stabilizer 7 and the inner wall of the pipeline of the outer metal conductor 1, the second inserting stabilizer 7 is also used for strengthening firm connection between the inner metal conductor 2 and a matched jack of the inner metal conductor, and meanwhile, the second inserting stabilizer and the conductor connecting sheet 4 are spaced apart from each other, so that collision and damage between the conductor connecting sheet 4 and the jack caused by the fact that the inner metal conductor 2 is inserted into the.
In order to improve the convenience of the first plugging stabilizer 6 in matching with the jack and reduce the damage to the jack, the first plugging stabilizer 6 includes a first inclined surface 61, a second inclined surface 62 and a first plane 63 connecting the first inclined surface 61 and the second inclined surface 62; wherein, the first inclined surface 61 and the second inclined surface 62 respectively form acute angles with the central axis of the outer metal conductor 1, which facilitates the mating of the outer metal conductor 1 with the jack, and the two acute angles formed are preferably equal.
Similarly, in order to improve the convenience of the second plug-in stabilizer 7 in matching with the jack and reduce the damage to the jack, the second plug-in stabilizer 7 includes a third inclined surface 71, a fourth inclined surface 72, and a second plane 73 connecting the third inclined surface 71 and the fourth inclined surface 72; wherein,
the third inclined surface 71 and the fourth inclined surface 72 form acute angles with the central axis of the inner metal conductor 2, respectively, so as to facilitate the inner metal conductor 2 to be matched with the jack, and the two acute angles formed are preferably equal;
a concave surface 11 matched with the second inserting stabilizer 7 is formed on the inner wall of the pipeline of the inner metal conductor 2; the concave surface 11 includes a fifth inclined surface 111 parallel to the third inclined surface 71, a sixth inclined surface 112 parallel to the fourth inclined surface 72, and a third plane 113 parallel to the second plane 73, so that in the using process, damage between the second plugging stabilizer 7 and the inner wall of the pipe of the external metal conductor 1 can be avoided.
In order to realize the back-and-forth movement of the internal metal conductor 1 in the insulation body 3, the banana plug further comprises a wire end insulator 8 with a certain length, wherein the wire end insulator 8 is a cylinder which is sleeved on the wire 5 and movably installed in the cavity 31 formed in the insulation body 3, and a first bump 81 and a second bump 82 are formed at two opposite ends of the cylinder; wherein,
the first bump 81 is held in the cavity 31 and fixed to the inner metal conductor 2;
the second projection 82 remains outside the insulating body 3.
It will be appreciated that the inner metallic conductor 2 moves back and forth within the cavity 31 with the wire end insulator 8 at its central axis, and that whether the inner metallic conductor 2 is in the first position or in the second position, the first protrusion 81 will always remain within the cavity 31, while the second protrusion 82 will always remain outside the insulator body 3, thereby preventing the inner metallic conductor 2 from falling off and achieving an electrical connection between the inner metallic conductor 2 and the wire 5.
In order to realize that the inner metal conductor 2 can be reset quickly after being used, the banana plug further comprises a spring 9; wherein, the spring 9 is located in the cavity 31 and sleeved on the outer wall of the inner metal conductor 2, one end of the spring 9 is fixed with the first bump 81, and the other end of the spring is pressed against the inner wall of the cavity 31, so that after the inner metal conductor 2 is no longer matched with the jack, the inner metal conductor 2 can be restored to the first position (as shown in fig. 2) from the second position (as shown in fig. 3, that is, the spring 9 is compressed).
Certainly, in order to further improve the matching degree of the plug and the jack, the end surface of the end of the external metal conductor 1 far away from the insulating body 3 is provided with a first conical surface 12; the end surface of the inner metal conductor 2 far away from the end of the insulating body 3 is provided with a second conical surface 21.
The embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, the banana plug adopts the fixedly installed external metal conductor and the movably installed internal metal conductor, so that the banana plug is flexibly matched with the two jacks and is electrically communicated with the two jacks through the conductor connecting sheet, thereby avoiding the frequency of manually replacing the plug and reducing the workload.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A banana plug for an electrical secondary terminal jack, characterized in that the banana plug comprises an outer metal conductor (1), an inner metal conductor (2), an insulator body (3), a conductor connecting sheet (4) and a wire (5); wherein,
the external metal conductor (1) is in a hollow tubular shape, and one end of the external metal conductor is fixed with the insulating body (3);
the inner metal conductor (2) penetrates into the pipeline of the outer metal conductor (1) and is movably arranged inside the insulating body (3), one end, located inside the insulating body (3), of the inner metal conductor (2) is connected with the lead (5), and the other end of the inner metal conductor is located in the pipeline of the outer metal conductor (1);
the conductor connecting sheet (4) is arranged between the external metal conductor (1) and the internal metal conductor (2), and two ends of the conductor connecting sheet are respectively connected with the inner wall of the pipeline of the external metal conductor (1) and the outer wall of the internal metal conductor (2), so that the external metal conductor (1) and the internal metal conductor (2) can be electrically conducted.
2. The banana plug according to claim 1, characterized in that the banana plug further comprises a first plug stabilizer (6) and/or a second plug stabilizer (7); wherein,
the first plug-in stabilizer (6) is arranged on the outer wall of one end, far away from the insulating body (3), of the external metal conductor (1);
the second inserting stabilizer (7) is arranged on the outer wall of one end, far away from the insulating body (3), of the inner metal conductor (2), a certain distance is reserved between the second inserting stabilizer and the conductor connecting sheet (4), and a gap with a certain length is reserved between the second inserting stabilizer and the inner wall of the pipeline of the outer metal conductor (1).
3. The banana plug according to claim 2, wherein the first plug stabilizer (6) comprises a first inclined surface (61), a second inclined surface (62) and a first flat surface (63) connecting the first inclined surface (61) and the second inclined surface (62); wherein,
the first inclined surface (61) and the second inclined surface (62) form acute angles with the central axis of the outer metal conductor (1).
4. The banana plug according to claim 3, wherein the acute angle formed between the first slope (61) and the central axis of the outer metal conductor (1) is equal to the acute angle formed between the second slope (62) and the central axis of the outer metal conductor (1).
5. The banana plug according to claim 2, wherein the second plug stabilizer (7) comprises a third slope (71), a fourth slope (72) and a second plane (73) connecting the third slope (71) and the fourth slope (72); wherein,
the third inclined surface (71) and the fourth inclined surface (72) respectively form an acute angle with the central axis of the inner metal conductor (2);
a concave surface (11) matched with the second plug-in stabilizer (7) is formed on the inner wall of the pipeline of the inner metal conductor (2); wherein the concave surface (11) comprises a fifth inclined surface (111) parallel to the third inclined surface (71), a sixth inclined surface (112) parallel to the fourth inclined surface (72), and a third flat surface (113) parallel to the second flat surface (73).
6. The banana plug according to claim 5, characterized in that the acute angle formed between the third slope (71) and the central axis of the inner metal conductor (2) is equal to the acute angle formed between the fourth slope (72) and the central axis of the inner metal conductor (2).
7. The banana plug according to any one of claims 1 to 6, further comprising a wire end insulator (8) having a certain length, wherein the wire end insulator (8) is a cylinder sleeved on the wire (5) and movably mounted in a cavity (31) formed inside the insulator body (3), and a first bump (81) and a second bump (82) are formed at two opposite ends of the cylinder; wherein,
the first bump (81) is held in the cavity (31) and fixed to the inner metal conductor (2);
the second projection (82) remains outside the insulating body (3).
8. The banana plug as claimed in claim 7, characterized in that the banana plug further comprises a spring (9); wherein,
the spring (9) is positioned in the cavity (31) and sleeved on the outer wall of the inner metal conductor (2), one end of the spring (9) is fixed with the first bump (81), and the other end of the spring is pressed against the inner wall of the cavity (31).
9. The banana plug according to claim 8, wherein the end surface of the outer metal conductor (1) remote from the end of the insulator body (3) is provided with a first tapered surface (12).
10. The banana plug according to claim 9, wherein the inner metal conductor (2) has a second tapered surface (21) on its end surface remote from the end of the insulator body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843721.3A CN105337125B (en) | 2015-11-27 | 2015-11-27 | Banana plug for electrical secondary terminal jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843721.3A CN105337125B (en) | 2015-11-27 | 2015-11-27 | Banana plug for electrical secondary terminal jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105337125A true CN105337125A (en) | 2016-02-17 |
| CN105337125B CN105337125B (en) | 2018-02-23 |
Family
ID=55287501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510843721.3A Active CN105337125B (en) | 2015-11-27 | 2015-11-27 | Banana plug for electrical secondary terminal jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105337125B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190476A (en) * | 2019-06-25 | 2019-08-30 | 宋筱海 | A kind of sliding sleeve, interface and the equipment of two kinds of gauge wires of compatibility |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0774805A2 (en) * | 1995-11-20 | 1997-05-21 | ARBO Medizin-Technologie GmbH | Contact-Voltage proof banana plug |
| CN1224258A (en) * | 1997-12-10 | 1999-07-28 | 特克特朗尼克公司 | Dual contact banana connector |
| CN201104343Y (en) * | 2006-10-13 | 2008-08-20 | 菲尼克斯电气公司 | Electric connection terminal device |
| DE202010007229U1 (en) * | 2010-05-27 | 2010-10-21 | Ingun Prüfmittelbau Gmbh | High frequency test pin and high frequency test arrangement |
| CN202127155U (en) * | 2011-06-16 | 2012-01-25 | 山东电力集团公司济南供电公司 | Connector of relaying protection testing wire |
| CN203800341U (en) * | 2014-05-06 | 2014-08-27 | 国家电网公司 | Terminal row test connecting head |
| CN205178208U (en) * | 2015-11-27 | 2016-04-20 | 深圳供电局有限公司 | Banana plug for electrical secondary terminal jack |
-
2015
- 2015-11-27 CN CN201510843721.3A patent/CN105337125B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0774805A2 (en) * | 1995-11-20 | 1997-05-21 | ARBO Medizin-Technologie GmbH | Contact-Voltage proof banana plug |
| CN1224258A (en) * | 1997-12-10 | 1999-07-28 | 特克特朗尼克公司 | Dual contact banana connector |
| CN201104343Y (en) * | 2006-10-13 | 2008-08-20 | 菲尼克斯电气公司 | Electric connection terminal device |
| DE202010007229U1 (en) * | 2010-05-27 | 2010-10-21 | Ingun Prüfmittelbau Gmbh | High frequency test pin and high frequency test arrangement |
| CN202127155U (en) * | 2011-06-16 | 2012-01-25 | 山东电力集团公司济南供电公司 | Connector of relaying protection testing wire |
| CN203800341U (en) * | 2014-05-06 | 2014-08-27 | 国家电网公司 | Terminal row test connecting head |
| CN205178208U (en) * | 2015-11-27 | 2016-04-20 | 深圳供电局有限公司 | Banana plug for electrical secondary terminal jack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190476A (en) * | 2019-06-25 | 2019-08-30 | 宋筱海 | A kind of sliding sleeve, interface and the equipment of two kinds of gauge wires of compatibility |
| CN110190476B (en) * | 2019-06-25 | 2021-03-02 | 柳州市人民医院 | Sliding sleeve, interface and equipment compatible with two plugs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105337125B (en) | 2018-02-23 |
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