CN205050756U - Big galvanic isolation switch contact structure - Google Patents
Big galvanic isolation switch contact structure Download PDFInfo
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- CN205050756U CN205050756U CN201520800649.1U CN201520800649U CN205050756U CN 205050756 U CN205050756 U CN 205050756U CN 201520800649 U CN201520800649 U CN 201520800649U CN 205050756 U CN205050756 U CN 205050756U
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- fingertip
- fixed
- contact
- heavy current
- disconnecting switches
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Abstract
The utility model discloses a big galvanic isolation switch contact structure, including static contact subtotal moving contact part, static contact part including the bottom plate with fix two female arranging on the bottom plate, female arranging between the centre gripping have the static contact board, female exclusive side be fixed with and touch the finger subassembly, moving contact part including the bottom plate with fix two female arranging on the bottom plate, female arranging between the centre gripping have the static contact board, female exclusive side be fixed with and touch the finger subassembly, the static contact board and touch and indicate that swing joint has the moving contact board between the subassembly, the utility model has the characteristics of the interface tolerance is big, the current -carrying capacity greatly, endurance is strong and longe -lived in short -term.
Description
Technical field
The utility model belongs to high direct voltage high-current switch technical field of electric appliances, is specifically related to a kind of heavy current disconnecting switches structure of contact terminal.
Background technology
In recent years, find from the high voltage isolator fault statistics of northern electrical network, south electric network, wherein contact heating and the problem of mechanism the most outstanding, and contact heating mainly not enough by the design capacity of switchgear, contact is off quality or the reason such as loose contact causes.
At present, domestic each large electrical apparatus test room and power station especially require to improve constantly to isolating switch tolerance short circuit current ability and useful life, and domestic high voltage isolator equipment still has the space of larger improvement in technical indicator, capability and performance.
The mode that moving contact inserts elastic copper sheet made by high voltage isolator many employings copper pipe on market, or the structure of moving contact plate side shock mount clamping fixed contact.This is in actual motion, and contact abrasion is large, and contact resistance is high, easily causes the problems such as contact distortion when connecting larger short circuit current.
Utility model content
In order to overcome the shortcoming and defect of prior art, the utility model provides the heavy current disconnecting switches structure of contact terminal that a kind of interface tolerance is large, ampacity is large, short circuit withstand capacity is strong, the life-span is long.
The utility model solves the technical scheme that its technical problem adopts: a kind of heavy current disconnecting switches structure of contact terminal, comprise fixed contact part and moving contact part, described fixed contact part comprises base plate and is fixed on two busbars on base plate, fixed contact plate is clamped with between described busbar, fingertip assembly is fixed with outside described busbar, described moving contact part comprises base plate and is fixed on two busbars on base plate, fixed contact plate is clamped with between described busbar, fingertip assembly is fixed with outside described busbar, moving contact plate is connected with between described fixed contact plate and fingertip assembly.
Described a kind of heavy current disconnecting switches structure of contact terminal, its moving contact plate has two pieces, is connected to fixed contact plate tow sides by rotating shaft.
Described a kind of heavy current disconnecting switches structure of contact terminal, its moving contact plate side is also fixed with reinforcement gusset.
Described a kind of heavy current disconnecting switches structure of contact terminal, its fingertip assembly is bolted to connection on busbar.
Described a kind of heavy current disconnecting switches structure of contact terminal, its fingertip assembly comprises mounting panel and installs multiple fingertips on a mounting board side by side by adjustment screw, is provided with spring after fingertip.
Described a kind of heavy current disconnecting switches structure of contact terminal, be provided with gap between two adjacent fingertips, the front of fingertip is provided with contact-making surface, the counterbore being provided with accommodation spring below of fingertip.
Described a kind of heavy current disconnecting switches structure of contact terminal, is characterized in that, described contact-making surface is the arc surface being arranged on the upper and lower two ends of fingertip.
Described a kind of heavy current disconnecting switches structure of contact terminal, is characterized in that, is provided with two springs after described each fingertip.
Described a kind of heavy current disconnecting switches structure of contact terminal, its busbar is just provided with step surface to one end of fingertip assembly.
The beneficial effects of the utility model are: fixed contact plate is adjacent to clamping by two pieces busbar and is contained on base plate, two pieces fingertip assembly bolt crimping is simultaneously fixed on busbar and moving contact plate both sides, so just the electric current by contact is divided into the equidirectional electric current of two-way, the magnetic field electro-dynamic force of generation is conducive to the clamping increasing fingertip assembly; Fingertip assembly is formed by multiple fingertip Side by side groupings, adds contact point, spring and adjustment screw is housed after each fingertip, conveniently adjusts contact pressure; Two pieces moving contact plate assembles side by side, and one piece of reinforcement gusset is equipped with in side, and the electric power between moving contact plate can be avoided to cause copper plate distortion; The area of dissipation that gap adds fingertip is left between each fingertip; There are two circular arc contact-making surfaces in fingertip front, adds the effective contact area with copper bar, substantially increases current capacity, reduce the frictional force between moving contact plate simultaneously, extend mechanical endurance; There are two counterbores at the back side, convenient installation and retainer spring.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of the utility model fingertip assembly;
Fig. 3 is the overall structure schematic diagram that the utility model is applied on high voltage isolator.
Each Reference numeral is: 1-busbar, 1.1-step surface, 2-base plate, 3-fingertip assembly, 3.1-mounting panel, 3.2-fingertip, 3.2.1-contact-making surface, 3.2.2-counterbore, 3.3-adjustment screw, 3.4-spring, 4-moving contact plate, 5-strengthen gusset, 6-rotating shaft, 7-fixed contact plate, 8-insulated tension pole, 9-insulator.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to Fig. 1, shown in Fig. 2, the utility model discloses a kind of heavy current disconnecting switches structure of contact terminal, comprise fixed contact part and moving contact part, described fixed contact part comprises base plate 2 and fixing two busbars 1 on a base plate 2, fixed contact plate 7 is clamped with between described busbar 1, fixed contact plate 7 is adjacent to clamping dress on a base plate 2 by two pieces busbar 1, fingertip assembly 3 is fixed with outside described busbar 1, described moving contact part comprises base plate 2 and fixing two busbars 1 on a base plate 2, fixed contact plate 7 is clamped with between described busbar (1), fixed contact plate 7 is adjacent to clamping dress on a base plate 2 by two pieces busbar 1, fingertip assembly 3 is fixed with outside described busbar 1, moving contact plate 4 is connected with between described fixed contact plate 7 and fingertip assembly 3, moving contact plate can 6 freely rotate around the shaft, to realize the divide-shut brake action of contact.
Wherein, moving contact plate 4 has two pieces, assembles side by side, is connected to fixed contact plate 7 tow sides by rotating shaft 6; The side of moving contact plate 4 is also fixed with strengthens gusset 5, to improve the bending strength of moving contact plate 4, avoids the plastic deformation that the electric power by producing during short circuit current causes; Fingertip assembly 3 is fixed on busbar 1 and moving contact plate 4 both sides by bolt crimping, described fingertip assembly 3 is comprised mounting panel 3.1 and is arranged on the multiple fingertips 3.2 on mounting panel 3.1 by adjustment screw 3.3 side by side, fingertip 3.2 is provided with spring 3.4 below, adjustment screw 3.3 strains fingertip 3.2 through mounting panel 3.1, provides the initial pressure of fingertip 3.2.
Wherein, gap is provided with between described two adjacent fingertips 3.2, the front of fingertip 3.2 is provided with contact-making surface 3.2.1, the counterbore 3.2.2 being provided with accommodation spring 3.4 below of fingertip 3.2, spring 3.4 is by counterbore 3.2.2 location and installation, described contact-making surface 3.2.1 is the arc surface being separately positioned on fingertip about 3.2 two ends, slide with moving contact plate 4 above and crimp, crimp with the step surface 1.1 of busbar 1 below, can reduce fingertip 3.2 contact resistance like this, and frictional force during divide-shut brake and between contact plate, each fingertip 3.2 is provided with two springs 3.4 below, described busbar 1 is just provided with step surface 1.1 to one end of fingertip assembly 3.
With reference to shown in Fig. 3, the utility model is mainly used on high voltage isolator, and its base plate 2 is fixed on the insulator 9 of switch, and two pieces moving contact plate 4 is connected with insulated tension pole 8 by bearing pin.When switch closes a floodgate, moving contact plate 4 side and fixed contact plate 7 are fitted, and opposite side Compress Spring 3.4 contacts with fingertip 3.2; During switch separating brake, insulated tension pole 8 promotes moving contact plate 4 and 6 upwards opens around the shaft, and moving contact plate 4 one end is separated with fingertip 3.2, realizes the Secure isolation of switch.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only; and the embodiment that part is used; for the person of ordinary skill of the art; under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (9)
1. a heavy current disconnecting switches structure of contact terminal, comprise fixed contact part and moving contact part, it is characterized in that: described fixed contact part comprises base plate (2) and is fixed on two busbars (1) on base plate (2), fixed contact plate (7) is clamped with between described busbar (1), described busbar (1) outside is fixed with fingertip assembly (3), described moving contact part comprises base plate (2) and is fixed on two busbars (1) on base plate (2), fixed contact plate (7) is clamped with between described busbar (1), described busbar (1) outside is fixed with fingertip assembly (3), moving contact plate (4) is connected with between described fixed contact plate (7) and fingertip assembly (3).
2. a kind of heavy current disconnecting switches structure of contact terminal according to claim 1, is characterized in that, described moving contact plate (4) has two pieces, is connected to fixed contact plate (7) tow sides by rotating shaft (6).
3. a kind of heavy current disconnecting switches structure of contact terminal according to claim 1, is characterized in that, described moving contact plate (4) side is also fixed with strengthens gusset (5).
4. a kind of heavy current disconnecting switches structure of contact terminal according to claim 1, is characterized in that, described fingertip assembly (3) is bolted to connection on busbar (1).
5. a kind of heavy current disconnecting switches structure of contact terminal according to claim 1 or 2 or 3 or 4, it is characterized in that, described fingertip assembly (3) is comprised mounting panel (3.1) and is arranged on the multiple fingertips (3.2) on mounting panel (3.1) by adjustment screw (3.3) side by side, and fingertip (3.2) is provided with spring (3.4) below.
6. a kind of heavy current disconnecting switches structure of contact terminal according to claim 5, it is characterized in that, gap is provided with between described two adjacent fingertips (3.2), the front of fingertip (3.2) is provided with contact-making surface (3.2.1), the counterbore (3.2.2) being provided with accommodation spring (3.4) below of fingertip (3.2).
7. a kind of heavy current disconnecting switches structure of contact terminal according to claim 6, is characterized in that, described contact-making surface (3.2.1) is for being arranged on the arc surface at the upper and lower two ends of fingertip (3.2).
8. a kind of heavy current disconnecting switches structure of contact terminal according to claim 7, is characterized in that, described each fingertip (3.2) is provided with two springs (3.4) below.
9. a kind of heavy current disconnecting switches structure of contact terminal according to claim 8, is characterized in that, described busbar (1) is just provided with step surface (1.1) to one end of fingertip assembly (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520800649.1U CN205050756U (en) | 2015-10-13 | 2015-10-13 | Big galvanic isolation switch contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520800649.1U CN205050756U (en) | 2015-10-13 | 2015-10-13 | Big galvanic isolation switch contact structure |
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| Publication Number | Publication Date |
|---|---|
| CN205050756U true CN205050756U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520800649.1U Active CN205050756U (en) | 2015-10-13 | 2015-10-13 | Big galvanic isolation switch contact structure |
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| Country | Link |
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| CN (1) | CN205050756U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252170A (en) * | 2016-08-19 | 2016-12-21 | 西安交通大学 | Electric power between a kind of dynamic guide rod and conductive base compensates attachment structure |
| CN106971893A (en) * | 2017-04-24 | 2017-07-21 | 习水县西科电脑科技有限公司 | A kind of safety-protection system |
| CN112635211A (en) * | 2020-12-18 | 2021-04-09 | 双城市机电技术开发有限公司 | Heavy current moving contact structure |
| CN113192789A (en) * | 2021-03-24 | 2021-07-30 | 天津平高智能电气有限公司 | On-pole isolating switch and wiring terminal thereof |
-
2015
- 2015-10-13 CN CN201520800649.1U patent/CN205050756U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252170A (en) * | 2016-08-19 | 2016-12-21 | 西安交通大学 | Electric power between a kind of dynamic guide rod and conductive base compensates attachment structure |
| CN106252170B (en) * | 2016-08-19 | 2019-02-01 | 西安交通大学 | A kind of electronic force compensating connection structure between dynamic guide rod and conductive base |
| CN106971893A (en) * | 2017-04-24 | 2017-07-21 | 习水县西科电脑科技有限公司 | A kind of safety-protection system |
| CN106971893B (en) * | 2017-04-24 | 2019-07-30 | 习水县西科电脑科技有限公司 | A kind of security system |
| CN112635211A (en) * | 2020-12-18 | 2021-04-09 | 双城市机电技术开发有限公司 | Heavy current moving contact structure |
| CN112635211B (en) * | 2020-12-18 | 2023-11-03 | 双城市机电技术开发有限公司 | Heavy current moving contact structure |
| CN113192789A (en) * | 2021-03-24 | 2021-07-30 | 天津平高智能电气有限公司 | On-pole isolating switch and wiring terminal thereof |
| CN113192789B (en) * | 2021-03-24 | 2023-05-12 | 天津平高智能电气有限公司 | Column isolating switch and wiring terminal thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |