CN102136367A - Electric leading-out terminal of power capacitor - Google Patents
Electric leading-out terminal of power capacitor Download PDFInfo
- Publication number
- CN102136367A CN102136367A CN 201010594716 CN201010594716A CN102136367A CN 102136367 A CN102136367 A CN 102136367A CN 201010594716 CN201010594716 CN 201010594716 CN 201010594716 A CN201010594716 A CN 201010594716A CN 102136367 A CN102136367 A CN 102136367A
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- binding post
- out terminal
- terminal
- wire connecting
- electric leading
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Abstract
The invention provides an electric leading-out terminal of a power capacitor. The electric leading-out terminal comprises a wire connecting terminal and an insulation bushing; the wire connecting terminal is led out from a capacitor shell; the insulation bushing is positioned between the wire connecting terminal and the capacitor shell so that the wire connecting terminal and the capacitor shell are insulated with each other; a neck part on the lower side of the wire connecting terminal is a screw rod; and a hexagonal nut is arranged on the wire connecting terminal to fasten an upper end cover on the top of the insulation bushing. The wire connecting terminal is a flat plate; and at least one wire connecting through hole is formed on the flat plate. An insulation sleeve is arranged outside the connecting part. The wire connecting terminal is a rectangular solid, which is 1 to 30 millimeters thick. In a preferable scheme, two wire connecting through holes are formed. An electroplating layer or honing tin layer for preventing corrosion is arranged on the surface of the terminal. The insulation bushing is connected with the capacitor shell in a soldering, argon arc welding or pressure welding way. The terminal is hasped with the horizontal panel of an external lead wire and fastened by a bolt, so the contact area is large, the connection is reliable, the contact pressure is increased, the contact resistance is reduced, and the terminal cannot emit heat; and the connecting mode is simple and easy.
Description
(1) technical field
The present invention relates to the power capacitor technical field, be specially the electric leading-out terminal of a kind of power capacitor.
(2) background technology
In electric power system, particularly in the super high voltage direct current electricity transmission system,, need to use a large amount of power capacitors for the harmonic component of bucking-out system lagging reactive power, filtering appts AC side.Between the binding post of drawing in the capacitor casing and the shell of capacitor certain insulation must be arranged, thus the electric leading-out terminal of capacitor comprise the electric binding terminal of drawing in the capacitor with and the insulating sleeve of assembling.
The binding post of capacitor all is circular configuration at present, mainly contains screw-type and polished rod column type.The binding post of screw-type mainly is connected the back by a watt molded lines folder with outer lead and realizes current flowing.This connected mode is present leading connected mode.Polished rod column type binding post is connected by the wire clamp of shaking hands with outer lead, realizes current flowing, and this connected mode makes at present and is used less.The advantage of these two kinds of binding posts all is simple, and shortcoming is to have wire clamp cracking problem, and the conductor joint heating problem is also more serious.
The conductor joint heating problem of the binding post of capacitor is still the hard nut to crack of puzzlement capacitor industry.DC transmission engineering particularly, because the harmonic content of system is big, the electric current that flows through capacitor is much higher than conventional capacitor, and the joint heating problem of capacitor terminal is particularly serious, has become the subject matter of DC transmission engineering with capacitor at present.Simultaneously, because the DC transmission engineering capacitors count is many, pylon is high, maintenance is difficult,, can greatly increase the operation maintenance workload of capacitor, the safe operation of harm capacitor if the conductor joint heating problem of the binding post of capacitor can not get solving.
(3) summary of the invention
The objective of the invention is to design the electric leading-out terminal of a kind of power capacitor, its binding post is plate and wiring hole is arranged, and is connected with outer lead easily and reliably, reduces the heating of joint.
The electric leading-out terminal of power capacitor of the present invention's design comprises binding post and insulating sleeve, binding post is drawn in capacitor casing, insulating sleeve is between binding post and the capacitor casing, make the two insulation, the neck of binding post below is a screw rod, hex nut is arranged, the upper end cover at fastening insulating sleeve top on it.This programme middle connecting terminal is plate shaped, offers the through hole of at least one wiring on its flat board.
During being connected of this binding post and outer lead, adopt the plane directly overlap and fastening through wiring hole with bolt, big with the outer lead contact-making surface, connection is not reliably become flexible, and does not generate heat.
After being connected of this binding post and outer lead, connecting portion adds the insulating case insulation.Described insulating case is heat-shrinkable sleeve pipe or other.
The cross section of described plate shaped binding post is a rectangle.
Described plate shaped binding post is a cuboid, is 10mm～100mm along the length of binding post axis direction, and width is 10mm～100mm, dull and stereotyped thick be 1mm～30mm.
Open the through hole of two wiring on the platen surface of binding post described in the preferred version, the aperture is 5mm～50mm, and pitch-row is 10mm～80mm.
There is electrodeposited coating on described binding post surface or wards off the tin layer, and the chemistry covering is suitable for outdoor anticorrosion.
Originally insulating sleeve of electric leading-out terminal and capacitor casing is connected to welded type or is compression joint type.Described welding manner can be soldering or electric welding or gas welding or gas shielded arc welding etc.
Another kind of scheme is that the insulating sleeve of this electric leading-out terminal and the loam cake of capacitor casing are fixed with one, and reduce the welding between flange and lid, improve the reliability that connects.
The advantage of the electric leading-out terminal of power capacitor of the present invention is: 1, plate shaped binding post can provide two planes and outer lead plane overlap joint, and the contact-making surface on increase and outer lead plane, the heating of minimizing contact site connect more reliable most possibly; 2, the direct crimping in the plane of binding post and outer lead plane, and at least one bolted is arranged, increase contact pressure, reduced contact resistance, do not exist the wire clamp cracking to cause the risk of loose contact, guarantee to connect more reliable; 3, the connected mode of plane overlap joint, bolted is simple; 4, the tip side of outer lead can be the flexible connection structure of rectangle copper sheet, is subjected to the effect of mechanical force to avoid capacitor casing when moving.
(4) description of drawings
Fig. 1 is the structural representation of the electric leading-out terminal embodiment 1 of this power capacitor;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the electric leading-out terminal embodiment 2 of this power capacitor;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of the electric leading-out terminal embodiment 3 of this power capacitor.
The figure internal label is:
1, binding post, 2, hex nut, 3, upper end cover, 4, insulating sleeve, 5, sealing gasket, 6, case top lid.
(5) embodiment
Embodiment 1
The electric leading-out terminal embodiment 1 of this power capacitor as illustrated in fig. 1 and 2, comprise binding post 1 and insulating sleeve 4, binding post 1 is drawn in capacitor casing, insulating sleeve 4 is between binding post 1 and the capacitor casing, make the two insulation, the neck of binding post 1 below is a screw rod, and hex nut 2 is arranged on it, the upper end cover 3 at fastening insulating sleeve 4 tops.This routine binding post 1 is plate shaped cuboid, and length is 58mm, and width is 30mm, and flat board is thick to be 8mm, and cross section is a rectangle as shown in Figure 2.Have the through hole of two wiring on described binding post 1 platen surface, the aperture is 9mm, and pitch-row is 25mm.There is electrodeposited coating on binding post 1 surface, satisfies the requirement for anticorrosion of outdoor use.
The insulating sleeve 4 of this routine electric leading-out terminal and the compression joint type that is connected to of capacitor casing.
The electric leading-out terminal embodiment 1 of this power capacitor is shown in Fig. 3 and 4, and is similar to embodiment 1, comprises binding post 1 and insulating sleeve 4, and the length of this routine plate shaped binding post 1 is 58mm, and width is 51mm, and flat board is thick to be 8mm, and cross section is a rectangle.Have the through hole of 4 wiring on the described binding post platen surface, the aperture is 11mm, and the pitch-row of vertical and horizontal is 25mm.Be fastenedly connected with available 4 of overlap joint back, outer lead plane.
The insulating sleeve 4 of this routine electric leading-out terminal and the braze welding type that is connected to of capacitor casing.
Electric leading-out terminal embodiment 3 binding posts 1 of this power capacitor are similar to embodiment 1, it also is plate shaped binding post, as shown in Figure 5,2 insulating sleeves 4 of this example are fixed with one with the case top lid 6 of capacitor, between insulating sleeve 4 and the case top lid 6 sealing gasket 5 are arranged.
The foregoing description is the specific case that purpose of the present invention, technical scheme and beneficial effect are further described only, and the present invention is defined in this.All any modifications of within scope of disclosure of the present invention, being made, be equal to replacement, improvement etc., all be included within protection scope of the present invention.
Claims (10)
1. the electric leading-out terminal of power capacitor, comprise binding post (1) and insulating sleeve (4), binding post (1) is drawn in capacitor casing, insulating sleeve (4) is between binding post (1) and the capacitor casing, make the two insulation, the neck of binding post (1) below is a screw rod, hex nut (2) is arranged, the upper end cover (3) at fastening insulating sleeve (4) top on it; It is characterized in that:
Described binding post (1) is plate shaped, offers the through hole of at least one wiring on its flat board.
2. the electric leading-out terminal of power capacitor according to claim 1 is characterized in that:
The cross section of described plate shaped binding post (1) is a rectangle.
3. the electric leading-out terminal of power capacitor according to claim 1 and 2 is characterized in that:
Described plate shaped binding post (1) flat board is thick to be 1mm～30mm.
4. the electric leading-out terminal of power capacitor according to claim 1 and 2 is characterized in that:
Described plate shaped binding post (1) is a cuboid, is 10mm～100mm along the length of binding post axis direction, and width is 10mm～100mm, dull and stereotyped thick be 1mm～30mm.
5. the electric leading-out terminal of power capacitor according to claim 1 and 2 is characterized in that:
Have the through hole of two wiring on described binding post (1) platen surface.
6. the electric leading-out terminal of power capacitor according to claim 1 and 2 is characterized in that:
Through-hole aperture on described binding post (1) platen surface is 5mm～50mm, and pitch-row is 10mm～80mm.
7. the electric leading-out terminal of power capacitor according to claim 1 and 2 is characterized in that:
There is electrodeposited coating on described binding post (1) surface or wards off the tin layer.
8. the electric leading-out terminal of power capacitor according to claim 1 and 2 is characterized in that:
Described insulating sleeve (4) and capacitor casing be connected to welded type or compression joint type.
9. the electric leading-out terminal of power capacitor according to claim 1 and 2 is characterized in that:
Described insulating sleeve (4) is fixed with one with the case top lid (6) of capacitor.
10. the electric leading-out terminal of power capacitor according to claim 9 is characterized in that:
Between the case top lid (6) of described insulating sleeve (4) and capacitor sealing gasket (5) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594716 CN102136367A (en) | 2010-12-18 | 2010-12-18 | Electric leading-out terminal of power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594716 CN102136367A (en) | 2010-12-18 | 2010-12-18 | Electric leading-out terminal of power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102136367A true CN102136367A (en) | 2011-07-27 |
Family
ID=44296116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010594716 Pending CN102136367A (en) | 2010-12-18 | 2010-12-18 | Electric leading-out terminal of power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102136367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105683318A (en) * | 2013-11-08 | 2016-06-15 | 库珀技术公司 | Joining dissimilar materials using an epoxy resin composition |
| CN110568288A (en) * | 2019-09-17 | 2019-12-13 | 河海大学 | Device and method for diagnosing loosening of screw of terminal strip of switch cabinet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1547103A (en) * | 1976-05-31 | 1979-06-06 | Wolf Woco & Co Franz J | Capacitor winding core |
| CN201298455Y (en) * | 2008-09-25 | 2009-08-26 | 合阳电力电容器制造有限责任公司 | An aggregate shunt capacitor |
| CN101916656A (en) * | 2010-07-15 | 2010-12-15 | 王海龙 | Power capacitor |
| CN201966068U (en) * | 2010-12-18 | 2011-09-07 | 桂林电力电容器有限责任公司 | Electrical leading-out terminal of power capacitor |
-
2010
- 2010-12-18 CN CN 201010594716 patent/CN102136367A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1547103A (en) * | 1976-05-31 | 1979-06-06 | Wolf Woco & Co Franz J | Capacitor winding core |
| CN201298455Y (en) * | 2008-09-25 | 2009-08-26 | 合阳电力电容器制造有限责任公司 | An aggregate shunt capacitor |
| CN101916656A (en) * | 2010-07-15 | 2010-12-15 | 王海龙 | Power capacitor |
| CN201966068U (en) * | 2010-12-18 | 2011-09-07 | 桂林电力电容器有限责任公司 | Electrical leading-out terminal of power capacitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105683318A (en) * | 2013-11-08 | 2016-06-15 | 库珀技术公司 | Joining dissimilar materials using an epoxy resin composition |
| CN110568288A (en) * | 2019-09-17 | 2019-12-13 | 河海大学 | Device and method for diagnosing loosening of screw of terminal strip of switch cabinet |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110727 |