CN104300324A - Combination connecting piece used for large current electrical device or wire connection - Google Patents

Combination connecting piece used for large current electrical device or wire connection Download PDF

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Publication number
CN104300324A
CN104300324A CN201410535187.5A CN201410535187A CN104300324A CN 104300324 A CN104300324 A CN 104300324A CN 201410535187 A CN201410535187 A CN 201410535187A CN 104300324 A CN104300324 A CN 104300324A
Authority
CN
China
Prior art keywords
intermediate connector
wiring nose
spanner position
section
current electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410535187.5A
Other languages
Chinese (zh)
Inventor
邓晓廉
刘军志
陈芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Training Center of State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Training Center of State Grid Hunan Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Hunan Electric Power Co Ltd, Training Center of State Grid Hunan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410535187.5A priority Critical patent/CN104300324A/en
Publication of CN104300324A publication Critical patent/CN104300324A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/193Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/005Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/56Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another

Abstract

The invention discloses a combination connecting piece used for large current electrical device or wire connection. The combination connecting piece comprises at least one wiring nose and further comprises at least one middle connector, wherein the middle connector always has one end to be connected with the wiring nose, and the other end of the middle connector is used for external connection or used for being connected with the wiring nose. The middle connector is provided with a positive wire section and a negative wire section, and the wiring nose is provided with a non-thread pipe section and a thread section. The thread section of the wiring nose is matched with the positive wire section or the negative wire section of the middle connector. The contact area of the joint of the combination connecting piece is enlarged, the mechanical reliability is good, connecting and detaching are convenient, the operation processes are simplified, and faults can be effectively reduced.

Description

For the combined connection component that high-current electrical equipment or wire connect
Technical field
The present invention relates to a kind of combined connection component connected for high-current electrical equipment or wire.
Background technology
For a long time, the electric equipment connection of high-voltage large current is the weak link in electric power system always.When electric load is excessive, the tie point equipment that burns out that more often occurs generating heat because contact resistance is excessive causes the problem of fire, causes major safety risks.At present, connecting line as shown in figure 14, first inserts in wire barrel during use, fastens with Press Plier, then be enclosed within binding post by connecting hole by the structure of the Wiring nose that electric power system uses, also tight with screw.Mainly there is following problem in the Wiring nose of this structure: the contact area of junction is little, mechanical stability is poor, construction technology is not easy.In above-mentioned three problems, any one problem all may cause the generation of two other problem.This problem is no lack of research and searcher for many years, but situation about understanding at present, do not tackle the problem at its root.
Summary of the invention
The object of the present invention is to provide a kind of contact area large, good mechanical stability, the simple to operate combined connection component connected for high-current electrical equipment or wire easy to use.
This combined connection component connected for high-current electrical equipment or wire provided by the invention, comprise at least one Wiring nose, also comprise at least one intermediate connector, intermediate connector always has one end to be connected with Wiring nose, the other end is used for external or is connected with described Wiring nose, described intermediate connector has positive silk section and anti-silk section, and described Wiring nose has bare pipe section and thread segment, and the thread segment of Wiring nose and the positive silk section of intermediate connector or anti-silk section match.
As Wiring nose described in mode of priority of the present invention, there is auxiliary spanner position, intermediate connector has main spanner position.To have and cap and described Wiring nose or intermediate connector match.Described intermediate connector is a riffled tube, and its appearance is hexa-prism or mid portion is six prisms, six prismatic parts spanner position of deciding.
Have several as follows as intermediate connector described in mode of priority of the present invention: described intermediate connector one section is riffled tube, and one section is outer silk screw rod, and main spanner position is between riffled tube and outer silk screw rod.Positive silk section and the anti-silk section of described intermediate connector are outer silk screw rod, and main spanner position is between positive silk section and anti-silk section.
In order to make firmly to connect between wire or equipment further, at the main spanner position place of the auxiliary spanner position place of Wiring nose or intermediate connector, an Anti-rotating grommet is housed, this Anti-rotating grommet comprises by pressure pad circle and two anti-rotation cards, become the straight angle between described two anti-rotation cards and be positioned at by pressure pad circle periphery, with by pressure pad cast integrally, two anti-rotation cards can bend along respective base, the base of anti-rotation card to be less than by the distance of pressure washer center spanner position circumscribed circle or and the external radius of a circle of cap, rotate relative to intermediate connector for preventing Wiring nose.Described Anti-rotating grommet is arranged between the auxiliary spanner position of described Wiring nose and the main spanner position of intermediate connector, and the two anti-rotation cards for Anti-rotating grommet can bend the auxiliary spanner position on Wiring nose and the main spanner position on intermediate connector respectively.Described Anti-rotating grommet also can be arranged on the main spanner position on described intermediate connector and and between cap, can bend respectively at the main spanner position of intermediate connector and and cap for Anti-rotating grommet two anti-rotation card.
The present invention compared with prior art tool has the following advantages:
1. the contact-making surface of junction increases;
2. save the device clamp that transition connects, decrease fault point;
3. the Mechanical Reliability connected is good, effectively reduces electric power to the impact connected;
4. connect and remove conveniently, operational sequence simplifies.
5, be applicable to the connection between the wire of various big current or equipment, can be used for the connection of the connection of non-tension force wire, wire and electric equipment, can be used for the connection between electric equipment.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of parts Wiring nose of the present invention.
Fig. 2 is Wiring nose the second structural representation.
Fig. 3 is a kind of structural representation of parts intermediate connector of the present invention.
Fig. 4 is the second structural representation of intermediate connector.
Fig. 5 is the third structural representation of intermediate connector.
Fig. 6 is the 4th kind of structural representation of intermediate connector.
Fig. 7 is the structural representation of parts Anti-rotating grommet of the present invention.
Fig. 8 is the structural representation of embodiment of the present invention one.
Fig. 9 is the installation diagram of Fig. 8.
Figure 10 is the another kind of structural representation of embodiment of the present invention one.
Figure 11 is the structural representation of embodiment of the present invention two.
Figure 12 is the another kind of structural representation of embodiment of the present invention two.
Figure 13 is the structural representation of embodiment of the present invention three.
Figure 14 is the structural representation of prior art.
Embodiment
A kind of structure of parts Wiring nose 1 of the present invention as can be seen from Figure 1, Wiring nose 1 comprises bare pipe section 11 and thread segment 12, bare pipe section 11 is mainly used in connecting wire, and wire inserts in this pipeline section and then adopts crimping, makes wire and Wiring nose have the contact of maximum area.What thread segment 12 adopted is outer silk threaded rod, also can adopt riffled tube, as shown in Figure 2.Thread segment 12 has auxiliary spanner position 13 above.Thread segment 12 is mainly used in being connected with intermediate connector 2.
A kind of structure of parts intermediate connector 2 of the present invention as can be seen from Figure 3, intermediate connector 2 has positive silk section 21, anti-silk section 22, main spanner position 23.Intermediate connector 2 adopts riffled tube, and outer surface is hexa-prism, total length spanner position 23 of deciding, very easy to use.Also middlely can adopt hexa-prism, both sides are cylindric, middle for main spanner position 23, as shown in Figure 4.Intermediate connector 2 can also adopt one section of riffled tube, one section of outer silk screw rod, is spanner position, as shown in Figure 5 between riffled tube and outer silk screw rod.Also can two sections all with outer silk screw rod, centre is spanner position, as shown in Figure 6.
Parts Anti-rotating grommet 4 of the present invention as can be seen from Figure 7, this Anti-rotating grommet comprises by pressure pad circle 41 and two anti-rotation cards 42, become the straight angle between two anti-rotation cards and be positioned at by pressure pad circle periphery, with by pressure pad cast integrally, two anti-rotation cards can bend along respective base, anti-rotation card base to by pressure washer center distance be less than spanner position or and the external radius of a circle of cap, during use by two anti-rotation cards respectively to both sides and cap or spanner position bending, limit and the rotation of cap or spanner position, prevent Wiring nose from rotating relative to intermediate connector.
Execution mode one: can find out that present embodiment has Wiring nose 1 and intermediate connector 2 from Fig. 8 and Fig. 9, have Anti-rotating grommet 4.The thread segment 12 of Wiring nose 1 adopts outer silk screw rod, and between thread segment 12 and bare pipe section, have auxiliary spanner position 13, intermediate connector 2 adopts a riffled tube, and this riffled tube appearance is hexa-prism, total length spanner position 23 of deciding.Anti-rotating grommet 4 penetrates on the outer silk screw rod of Wiring nose 1, when this outer silk screw rod is connected tightly with intermediate connector, the auxiliary spanner position 13 of 41 1, two of Anti-rotating grommet anti-rotation cards to Wiring nose is bent, be affixed to side's plane of auxiliary spanner position, another anti-rotation card is to the main spanner position bending of intermediate connector, be affixed to side's plane of auxiliary spanner position, the bending base of anti-rotation card is less than to by the centre distance of pressure pad circle the circumradius that connector assists spanner position, corresponding anti-rotation card is also less than the circumradius of the main spanner position of intermediate connector, make cannot relatively rotate between Wiring nose 1 and intermediate connector 2 after the bending of anti-rotation card.When not and cap, Anti-rotating grommet is placed on and main and auxiliaryly helps between spanner position; Have and cap when, Anti-rotating grommet is placed on and between cap and intermediate connector.
For execution mode one, when Wiring nose structure is constant, intermediate connector is still riffled tube, but main spanner position is in centre, and both sides are cylindric, as shown in Figure 9, now can add cap 3 in the lump on the outer silk screw rod of Wiring nose, Wiring nose is connected with intermediate connector tightly, will also cap and intermediate connector also tightly, will make can not relatively rotate between Wiring nose and intermediate connector.
The conduction that present embodiment may be used for various working connects:
Such as can be used for the connection of non-tension force wire, this situation should adopt two Wiring noses, and attended operation has two kinds of methods: a kind of is insert in the bare pipe section of a Wiring nose by a wire, adopts crimping to be connected and fixed; Another root wire inserts in the bare pipe section of another Wiring nose, employing crimping is connected and fixed, then by Anti-rotating grommet and and cap on on Wiring nose 1, be threaded with intermediate connector 2 with Wiring nose 1, also tight with the also cap 23 on Wiring nose screw rod, the anti-rotation card of pressure Anti-rotating grommet, completes the connection between two wires.Two Wiring noses can first be connected with intermediate connector by another kind of mode, then wire are inserted terminals and compress, complete the connection between two wires.Unclamp during dismounting and cap, breakdown anti-rotation card 41, rotate Wiring nose 1 by the main spanner position 13 of intermediate connector, connecting line terminal can exit connection simultaneously, completes dismounting work.
Such as can be used for again the connection of wire and electric equipment, in this case the binding post of electric equipment all should with external screw thread, wire inserts the interior firmly crimping of bare pipe of Wiring nose, intermediate connector 2 one end is connected the other end with Wiring nose 1 and is connected with electrical apparatus interstar connection post, complete the connection of wire and electric equipment, the mode of dismounting is the same, unclamps and the anti-rotation card of cap and Anti-rotating grommet, rotate intermediate connector again, exit between equipment with wire and be connected.
For another example can be used for the electrical connection between equipment and equipment.In this case two Wiring noses 1 and two intermediate connectors 2 will be used.Two equipment all should have screw thread binding post, are connected by two Wiring noses 1 with wire, and two intermediate connectors 2 respectively one end are connected one end and equipment connection with Wiring nose, complete the electrical connection between two equipment.When removing the connection between two equipment, be also unclamp and cap 3 and anti-rotation card 41, then rotate intermediate connector 2, complete dismounting work.
Execution mode two: Figure 11 reflects the structure of execution mode two, this execution mode also has Wiring nose and intermediate connector compared with execution mode one, different with the structure of intermediate connector 2 unlike Wiring nose 1, the Wiring nose 1 of present embodiment still comprises bare pipe section and thread segment, what thread segment adopted is riffled tube, the outer wall of riffled tube is six prisms, and total length is as spanner position.Positive silk section and the anti-silk section of intermediate connector 2 are outer silk screw rod, and spanner position is between positive silk section and anti-silk section.Anti-rotating grommet 4 two, the upper positive silk section to intermediate connector 2 and anti-silk section respectively, Wiring nose 1 is connected with intermediate connector 2 tightly, anti-rotation card 41 on Anti-rotating grommet 4 is bent, cannot relatively rotate between Wiring nose 1 and intermediate connector 2, firm connection, effectively prevent the disaster hidden-trouble that electrical connection brings built on the sand.When not and cap, Anti-rotating grommet is placed on and main and auxiliaryly helps between spanner position; Have and cap when, Anti-rotating grommet is placed on and between cap and intermediate connector.
For execution mode two, when intermediate connector 2 structure is constant, the thread segment of Wiring nose 1 is riffled tube, and be auxiliary spanner position between this riffled tube and bare pipe, both sides are cylindric, intermediate connector is identical with execution mode two, as shown in figure 12, now can on the outer silk screw rod of intermediate connector adduction cap 3, Wiring nose 1 is connected with intermediate connector 2 tight after, to also also tightly, realize firmly connecting by cap 3.
Execution mode three: Figure 13 reflects the structure of execution mode three, this execution mode also has Wiring nose 1 and intermediate connector 2 compared with above-mentioned two execution modes, but the structure of intermediate connector 2 is different, the intermediate connector 2 of present embodiment adopts one section of riffled tube, one section of outer silk screw rod, the thread segment of Wiring nose 1 should match in two thread segments of intermediate connector.When needs two Wiring noses, the thread segment of a Wiring nose is outer silk screw rod, and the thread segment of another Wiring nose is riffled tube, and the use of Anti-rotating grommet 4 and also cap 3 is the same.
In connecting assembly of the present invention, Wiring nose and intermediate connector can carry out selection coupling according to actual conditions in a word, no matter which kind of combines, the present invention has stable connection, good mechanical property, connect contact area large, adapt to the connection of big current wire or equipment, effectively can avoid the fire that the problem because of electrical connection causes.The present invention has achieved good effect in process on probation.

Claims (9)

1. for combined connection component that high-current electrical equipment or wire connect, comprise at least one Wiring nose (1), characterized by further comprising at least one intermediate connector (2), intermediate connector (2) always has one end to be connected with Wiring nose (1), the other end is used for external or is connected with described Wiring nose, described intermediate connector has positive silk section (21) and anti-silk section (22), described Wiring nose has bare pipe section (11) and thread segment (12), and the thread segment (12) of Wiring nose matches with the positive silk section of intermediate connector (2) or anti-silk section.
2., according to claim 1 for the combined connection component that high-current electrical equipment or wire connect, it is characterized in that described Wiring nose has auxiliary spanner position (13), intermediate connector has main spanner position (23).
3., according to claim 1 for the combined connection component that high-current electrical equipment or wire connect, it is characterized in that having also cap (3) to match with described Wiring nose or intermediate connector.
4. according to claim 2 for combined connection component that high-current electrical equipment or wire connect, it is characterized in that described intermediate connector is a riffled tube, its appearance is hexa-prism or mid portion is six prisms, six prismatic parts spanner position (23) of deciding.
5., according to claim 2 for the combined connection component that high-current electrical equipment or wire connect, it is characterized in that described intermediate connector one section is riffled tube, one section is outer silk screw rod, and main spanner position (23) is between riffled tube and outer silk screw rod.
6. according to claim 2 for combined connection component that high-current electrical equipment or wire connect, it is characterized in that positive silk section and the anti-silk section of described intermediate connector are outer silk screw rod, main spanner position (23) is between positive silk section (21) and anti-silk section (22).
7. according to Claims 2 or 3 for combined connection component that high-current electrical equipment or wire connect, it is characterized in that an Anti-rotating grommet (4) is equipped with in (13) place, auxiliary spanner position of Wiring nose (1) or main spanner position place (23) of intermediate connector (2), this Anti-rotating grommet comprises by pressure pad circle (41) and two anti-rotation cards (42), become the straight angle between described two anti-rotation cards and be positioned at by pressure pad circle (41) periphery, with by pressure pad cast integrally, two anti-rotation cards (42) can bend along respective base, the base of anti-rotation card (42) to be less than by the distance at pressure pad circle (41) center spanner position circumscribed circle or and the external radius of a circle of cap, rotate relative to intermediate connector (2) for preventing Wiring nose (1).
8. according to claim 7 for combined connection component that high-current electrical equipment or wire connect, it is characterized in that described Anti-rotating grommet is arranged between the auxiliary spanner position (13) of described Wiring nose and the main spanner position (23) of intermediate connector, the two anti-rotation cards for Anti-rotating grommet can bend the main spanner position of auxiliary spanner position (13) at Wiring nose and intermediate connector respectively.
9. according to claim 7 for combined connection component that high-current electrical equipment or wire connect, it is characterized in that described Anti-rotating grommet be arranged on described Wiring nose auxiliary spanner position (13) and and between cap (3) or main spanner position (23) on described intermediate connector with also between cap (3), the two anti-rotation cards for Anti-rotating grommet (4) can bend respectively the auxiliary spanner position of Wiring nose and and cap, or two anti-rotation cards can bend respectively the main spanner position of intermediate connector and and cap on.
CN201410535187.5A 2014-10-11 2014-10-11 Combination connecting piece used for large current electrical device or wire connection Pending CN104300324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410535187.5A CN104300324A (en) 2014-10-11 2014-10-11 Combination connecting piece used for large current electrical device or wire connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410535187.5A CN104300324A (en) 2014-10-11 2014-10-11 Combination connecting piece used for large current electrical device or wire connection

Publications (1)

Publication Number Publication Date
CN104300324A true CN104300324A (en) 2015-01-21

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ID=52319956

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410535187.5A Pending CN104300324A (en) 2014-10-11 2014-10-11 Combination connecting piece used for large current electrical device or wire connection

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107221793A (en) * 2017-06-21 2017-09-29 杭州力谱科技有限公司 A kind of instrument terminal
CN109075480A (en) * 2016-04-22 2018-12-21 菲尼克斯电动交通有限公司 Power contact part with replaceable contact area

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2323202Y (en) * 1998-02-23 1999-06-09 纬凡金属股份有限公司 Valve base for ball valve
CN200969410Y (en) * 2006-06-29 2007-10-31 上海置信电气股份有限公司 Transformational structure for transformer low-voltage casing tube wiring terminal
CN201606390U (en) * 2009-12-28 2010-10-13 莱芜钢铁股份有限公司 Anti-loosing spacer
CN102593617A (en) * 2012-03-19 2012-07-18 山东电力集团公司枣庄供电公司 Equipment clip
CN202348921U (en) * 2011-11-21 2012-07-25 刘美福 Thread-off proof connecting piece
CN202513303U (en) * 2012-04-06 2012-10-31 山东电力集团公司枣庄供电公司 Conductive wire connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2323202Y (en) * 1998-02-23 1999-06-09 纬凡金属股份有限公司 Valve base for ball valve
CN200969410Y (en) * 2006-06-29 2007-10-31 上海置信电气股份有限公司 Transformational structure for transformer low-voltage casing tube wiring terminal
CN201606390U (en) * 2009-12-28 2010-10-13 莱芜钢铁股份有限公司 Anti-loosing spacer
CN202348921U (en) * 2011-11-21 2012-07-25 刘美福 Thread-off proof connecting piece
CN102593617A (en) * 2012-03-19 2012-07-18 山东电力集团公司枣庄供电公司 Equipment clip
CN202513303U (en) * 2012-04-06 2012-10-31 山东电力集团公司枣庄供电公司 Conductive wire connector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109075480A (en) * 2016-04-22 2018-12-21 菲尼克斯电动交通有限公司 Power contact part with replaceable contact area
CN109075480B (en) * 2016-04-22 2021-09-10 菲尼克斯电动交通有限公司 Power contact with exchangeable contact areas
CN107221793A (en) * 2017-06-21 2017-09-29 杭州力谱科技有限公司 A kind of instrument terminal
CN107221793B (en) * 2017-06-21 2019-02-15 杭州力谱科技有限公司 A kind of instrument terminal

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Application publication date: 20150121