CN102237220A - Grounding loop moving/static contact device for load switch - Google Patents
Grounding loop moving/static contact device for load switch Download PDFInfo
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- CN102237220A CN102237220A CN2010101571806A CN201010157180A CN102237220A CN 102237220 A CN102237220 A CN 102237220A CN 2010101571806 A CN2010101571806 A CN 2010101571806A CN 201010157180 A CN201010157180 A CN 201010157180A CN 102237220 A CN102237220 A CN 102237220A
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- load switch
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Abstract
The invention discloses a grounding loop moving/static contact device for a load switch, belonging to the field of a high voltage switch gear. The invention provides a moving/static contact device which is characterized in that the capacity of arc resistance is strong, the electric field is uniform and two stations are designed in a direct-acting mode. The grounding loop moving/static contact device for a load switch comprises a static contact device, a conductive electrode, a moving contact device and a crank arm, wherein the moving contact device and the static contact device are arranged on the same axis; the moving contact device comprises an cylindrical intermediate electrode provided with contact blade slots at two ends, a sleeve and the conductive electrode, multiple contact blades are arranged in the contact blade slots, the conductive electrode is arranged in the cylinder of the intermediate electrode, the conductive electrode is communicated with the contact blade at the tail end of the intermediate electrode, the intermediate electrode is arranged in the sleeve, a guide slot is arranged on the outer surface of the sleeve, a boss is arranged at one end of the crank arm, the boss on the crack arm slides in the guide slot of the sleeve and drives the moving contact device to do a reciprocating motion along the axis.
Description
Technical field
The present invention relates to high voltage switching device, relate in particular to a kind of on-load switch grounded circuit dynamic/static contact device of double design.
Background technology
The most use with SF6 gas of China's loop-network switch cabinet is dielectric at present, disconnecting link formula moving contact, the loop-network switch cabinet of the auxiliary arc extinguishing of arc extinguishing coral sheet, the general three station spring operating mechanisms that adopt, rotate by a final drive shaft and to drive the fixing flexibly moving contact rotation of three-phase and connecting lever, between major loop fixed contact and grounded circuit fixed contact, the forward and reverse rotation of the disconnecting link formula moving contact of isolated location realizes separating brake, combined floodgate, the action of ground connection three stations.Disconnecting link formula structure is the on-load switch structure of contact terminal of moving contact, inevitably gets rid of the arc phenomenon when the switch on/off switch, and this phenomenon causes relatively puncturing easily.Reason is in deciliter moving contact motion process, it is very inhomogeneous that dynamic/static contact two ends electric field becomes, the electric arc that is produced belongs to accumulation type electric arc, arc energy is very big, and the material of its dynamic/static contact is the fine copper formation, and its fusing point is low, and anti-electric arc is indifferent, cause electric life low, making capability is not strong.
Summary of the invention
For addressing the above problem, the invention provides that a kind of anti-electric arc ability is strong, electric field is even, two stations are the dynamic/static contact device of moving design directly.
On-load switch grounded circuit dynamic/static contact device, comprise: static contact head device, a conductive electrode, trigger device and connecting lever, described trigger device and static contact head device are on same axis, described trigger device comprises: cylindrical shape and two ends are provided with the target of contact groove, sleeve pipe and conductive electrode, be provided with a plurality of contacts in the described contact groove, described conductive electrode places in the cylinder of target, conductive electrode communicates with the contact of target end, described target is arranged in the described sleeve pipe, described bushing outer surface is provided with gathering sill, one end of described connecting lever is provided with boss, boss on the described connecting lever slides in the gathering sill of sleeve pipe and drives trigger device along the axis reciprocating motion, and then realizes that trigger device and static contact head device are finished combined floodgate and separating brake moves.
On-load switch grounded circuit dynamic/static contact device of the present invention wherein, is equipped with groove on the two ends of described contact, and described contact evenly bundlees it by the spring of head and the tail phase hook ring shape in its groove and is fixed in the contact groove.
On-load switch grounded circuit dynamic/static contact device of the present invention, wherein, the contact in the described target front end contact groove is the copper-tungsten contact, the contact in the terminal contact groove of described target is one time punching molded undaform slip flap contact.
On-load switch grounded circuit dynamic/static contact device of the present invention, wherein, described conductive electrode is that interference fit is connected with target.
On-load switch grounded circuit dynamic/static contact device of the present invention, wherein, the length of described conductive electrode is greater than the length of electrode.
On-load switch grounded circuit dynamic/static contact device of the present invention, wherein, described static contact head device is made shape with electric arc resistant material through integral sintered technology, the one-piece type part of making by high-precision turning process again, and the contact end of static contact head device is provided with the copper-tungsten layer.
On-load switch grounded circuit dynamic/static contact device of the present invention, wherein, described spring is that stainless steel does not have the seamless spring that the magnetic material is made.
On-load switch grounded circuit dynamic/static contact device of the present invention, wherein, the boss that described target middle part is provided with in groove and the sleeve pipe fastens.
Beneficial effect of the present invention is:
Dynamic/static contact device adopts the directly moving design of two stations, has effectively avoided getting rid of the generation of arc phenomenon, and has lowered dynamic/static contact device combined floodgate and separating brake necessary operations merit, has simplified the design of associated operating mechanism.Owing to adopt the target of drum to produce uniform electric field, reduced the energy of electric arc, effectively increased the ability of dynamic/static contact device combined floodgate and separating brake.Target is arranged in the described sleeve pipe, forms an integral body, has simplified operation, effectively raises efficiency of assembling, has reduced cost of labor, has improved the product whole reliability.
Spring by head and the tail phase hook ring shape is fixed on contact in the contact groove, and the contact two ends are provided with groove, makes to connect compactlyer, and appearance is more attractive in appearance.
One time punching molded undaform slip flap contact in front end contact buried copper tungsten alloy contact and the terminal contact groove, the fusing point height, anti-electric arc ability is strong, has strengthened electric life, has also improved the ability of dynamic/static contact device separating brake and combined floodgate simultaneously.
Conductive electrode is that interference fit is connected with target, makes that the structure of trigger device is more firm.The one-piece type part of static contact head device for making by turning process, structure is more firm.
Spring is that stainless steel does not have the seamless spring that the magnetic material is made, and can prevent effectively that eddy current from producing.
Target middle part is provided with the interior boss of groove and sleeve pipe and fastens, and makes the compact conformation of trigger device.
Boss in the sleeve pipe engages with the groove at target middle part, forms moving contact part, has improved the product whole reliability.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a dynamic/static contact device sub-gate position interposed structure schematic diagram of the present invention;
Fig. 2 is a dynamic/static contact device closing position structural representation of the present invention;
Fig. 3 is a moving contact structure schematic diagram of the present invention;
Fig. 4 is a static contact structure schematic diagram of the present invention;
Fig. 5 is the front view of connecting lever of the present invention;
Fig. 6 is the cutaway view of A-A among Fig. 5.
Among the figure 1, trigger device; 2, flap contact; 3, spring A; 4, spring B; 5, target; 6, sleeve pipe; 7, spring C; 8, copper-tungsten contact; 9, spring D; 10, connecting lever boss; 11, static contact head device; 12, gathering sill; 13, conductive electrode; 14, connecting lever; 15, copper-tungsten layer; 16, spindle hole.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
As Fig. 1, shown in Figure 2, on-load switch grounded circuit dynamic/static contact device, comprise: static contact head device 11, trigger device 1, conductive electrode 13 and connecting lever 14, trigger device 1 and static contact head device 11 are on same axis, trigger device comprises: cylindrical shape and two ends are provided with the target 5 and the sleeve pipe 6 of contact groove, the middle part is provided with groove in the cylinder of target 5, evenly be provided with annular in the front end contact groove of target 5 and fix nine copper-tungsten contacts 8, the both sides of copper-tungsten contact 8 are provided with spring groove, and at the spring holddown groove internal fixation spring C7 of copper-tungsten contact 8 with target 5 connections, spring C7 wants head and the tail mutually hook-shaped circlewise, making copper-tungsten contact 8 and target 5 form binding is connected annular fixing, mounting spring D9 in the another side spring holddown groove of copper-tungsten contact 8, spring D9 head and the tail are mutually hook-shaped circlewise, make the other end of copper-tungsten contact 8 to form binding alone to connect annular fixing.Evenly be provided with annular in the contact groove of target 5 ends and fix nine flap contacts 2, the both sides of flap contact 2 are provided with spring groove, and it is fixing with spring B 4 in the spring holddown groove of flap contact 2 and target 5 connections, spring B 4 wants head and the tail mutually hook-shaped circlewise, making flap contact 2 and target 5 form binding is connected annular fixing, the end of target 5 and main shaft are to being connected, mounting spring A3 in the another side spring holddown groove of flap contact 2, spring A3 also wants head and the tail mutually hook-shaped circlewise, makes flap contact 2 other ends form binding alone and connects annular fixing; Conductive electrode 13 places in the cylinder of target 5, and conductive electrode 13 is a cylindrical structural, and the length of conductive electrode 13 is greater than the length of electrode 5.The other end of conductive electrode 13 communicates with grounded circuit, and the other end communicates with the flap contact 2 of trigger device.
As Fig. 3, Fig. 5 and shown in Figure 6, being arranged in the sleeve pipe 6 of target 5, sleeve pipe 6 integral body are columnar structured, the cylinder inner convex platform of sleeve pipe 6 engages with the groove at target 5 middle parts.Sleeve pipe 6 outer surfaces are provided with gathering sill 12, one end of connecting lever 14 is provided with connecting lever boss 10, the other end of connecting lever 14 is provided with spindle hole 16 and links to each other with main shaft, and connecting lever boss 10 slides in the gathering sill 12 of sleeve pipe 6 and drives trigger device 1 along the axis reciprocating motion.
As shown in Figure 1 and Figure 2, stir trigger device 1 and move downward by connecting lever 14 37 degree that turn clockwise, because of conductive electrode 13 has the straight-line guidance function, trigger device 1 is turned clockwise to rotatablely move when stirring by connecting lever 14 and is converted into downward rectilinear motion, trigger device 1 is to the close fixed contact 11 of lower edge axial-movement, copper-tungsten contact 8 begins the starting the arc with the copper-tungsten layer 15 of fixed contact 11 ends, along with trigger device and the quick of static contact head device contact, realize the closing function of trigger device 1 and static contact head device 11, electric arc extinguishes thereupon.Spend when connecting lever 14 is rotated counterclockwise 37, trigger device moves upward along the axis straight line, away from fixed contact 11, and then the separating brake function of realization trigger device 1 and static contact head device 11.Because copper-tungsten contact 8 has all adopted the copper-tungsten of anti-electric arc material with fixed contact 11, and incorporated the uniform electric field design in copper-tungsten contact 8 and contacted end, fixed contact 11 two ends, the straight line of trigger device 1 has moved up and down and has effectively avoided getting rid of the arc phenomenon, and make trigger device 1 in motion process, keep the uniformity of electric field, make electric arc more even at copper-tungsten contact 8 and fixed contact 11 two ends cigarette burnings, reduce the scaling loss degree greatly, effectively raise electric life.Thereby effectively increased making capability etc., integral body has improved each side electrical equipment index.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect have been carried out advancing a detailed description; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. on-load switch grounded circuit dynamic/static contact device, comprise: static contact head device (11), trigger device (1) and connecting lever (14), described trigger device (1) and static contact head device (11) are on same axis, it is characterized in that: it also comprises: a conductive electrode (13), described trigger device comprises: cylindrical shape and two ends are provided with the target (5) and the sleeve pipe (6) of contact groove, be provided with a plurality of contacts in the described contact groove, described conductive electrode (13) places in the cylinder of target (5), conductive electrode (13) communicates with the contact of target (5) end, described target (5) is arranged in the described sleeve pipe (6), described sleeve pipe (6) outer surface is provided with gathering sill, one end of described connecting lever (14) is provided with boss, and the boss on the described connecting lever (14) slides in the gathering sill of sleeve pipe (6) and drives trigger device (1) along the axis reciprocating motion.
2. on-load switch grounded circuit dynamic/static contact device according to claim 1 is characterized in that: be equipped with groove on the two ends of described contact, described contact is fixed in the contact groove by the spring in its groove.
3. on-load switch grounded circuit dynamic/static contact device according to claim 1 is characterized in that: described spring is that stainless steel does not have the seamless spring that the magnetic material is made.
4. on-load switch grounded circuit dynamic/static contact device according to claim 2, it is characterized in that: the contact in described target (5) the front end contact groove is copper-tungsten contact (8), and the contact in the terminal contact groove of described target (5) is one time punching molded flap contact (2).
5. on-load switch grounded circuit dynamic/static contact device according to claim 1 is characterized in that: described conductive electrode (13) is connected for interference fit with target (5).
6. on-load switch grounded circuit dynamic/static contact device according to claim 1 or 5, it is characterized in that: the length of described conductive electrode (13) is greater than the length of electrode (5).
7. on-load switch grounded circuit dynamic/static contact device according to claim 1 is characterized in that: described static contact head device (11) part that is formed in one, and the contact end of static contact head device (11) is provided with copper-tungsten layer (15).
8. on-load switch grounded circuit dynamic/static contact device according to claim 1 is characterized in that: the boss that described target (5) middle part is provided with in groove and the sleeve pipe (6) fastens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101571806A CN102237220A (en) | 2010-04-26 | 2010-04-26 | Grounding loop moving/static contact device for load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101571806A CN102237220A (en) | 2010-04-26 | 2010-04-26 | Grounding loop moving/static contact device for load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102237220A true CN102237220A (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101571806A Pending CN102237220A (en) | 2010-04-26 | 2010-04-26 | Grounding loop moving/static contact device for load switch |
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| CN (1) | CN102237220A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078269A (en) * | 2013-03-27 | 2014-10-01 | 上海中亚电气有限公司 | Load switch |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841108A (en) * | 1987-11-06 | 1989-06-20 | Cooper Industries, Inc. | Recloser plenum puffer interrupter |
| CN2243121Y (en) * | 1995-05-16 | 1996-12-18 | 地方国营象山高压电器厂 | Hand-operated pull-spring energy-storage vacuum load switch with isolation |
| CN201302963Y (en) * | 2008-11-28 | 2009-09-02 | 刘天保 | High-pressure electric switch intelligent operating mechanism |
| CN201311874Y (en) * | 2008-10-20 | 2009-09-16 | 华仪电气股份有限公司 | Outdoor AD vacuum circuit breaker and insulated supporting seat thereof |
| CN201360109Y (en) * | 2009-02-20 | 2009-12-09 | 国电博纳（北京）电力设备有限公司 | 126KV composite type combined electrical appliance |
| CN201378541Y (en) * | 2009-03-13 | 2010-01-06 | 扬州北辰电气设备有限公司 | Novel load switch |
| CN201673846U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Moving and fixed contact device of ground loop of load switch |
-
2010
- 2010-04-26 CN CN2010101571806A patent/CN102237220A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841108A (en) * | 1987-11-06 | 1989-06-20 | Cooper Industries, Inc. | Recloser plenum puffer interrupter |
| CN2243121Y (en) * | 1995-05-16 | 1996-12-18 | 地方国营象山高压电器厂 | Hand-operated pull-spring energy-storage vacuum load switch with isolation |
| CN201311874Y (en) * | 2008-10-20 | 2009-09-16 | 华仪电气股份有限公司 | Outdoor AD vacuum circuit breaker and insulated supporting seat thereof |
| CN201302963Y (en) * | 2008-11-28 | 2009-09-02 | 刘天保 | High-pressure electric switch intelligent operating mechanism |
| CN201360109Y (en) * | 2009-02-20 | 2009-12-09 | 国电博纳（北京）电力设备有限公司 | 126KV composite type combined electrical appliance |
| CN201378541Y (en) * | 2009-03-13 | 2010-01-06 | 扬州北辰电气设备有限公司 | Novel load switch |
| CN201673846U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Moving and fixed contact device of ground loop of load switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078269A (en) * | 2013-03-27 | 2014-10-01 | 上海中亚电气有限公司 | Load switch |
| CN104078269B (en) * | 2013-03-27 | 2017-12-05 | 上海中亚电气有限公司 | A kind of on-load switch |
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Application publication date: 20111109 |