CN103681080B - A kind of isolating switch moving contact group - Google Patents
A kind of isolating switch moving contact group Download PDFInfo
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- CN103681080B CN103681080B CN201310739478.1A CN201310739478A CN103681080B CN 103681080 B CN103681080 B CN 103681080B CN 201310739478 A CN201310739478 A CN 201310739478A CN 103681080 B CN103681080 B CN 103681080B
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Abstract
A kind of isolating switch moving contact group.It comprises contact supporting, moving contact, inner end cap, helical spring and outer end cap; Be formed in the middle part of contact supporting and organize perforate more, often organize perforate to be made up of upper and lower part providing holes, contact supporting end face with bottom surface is formed with multiple outer stomidium be connected with upper and lower part providing holes, be formed with moving contact installing hole respectively to interior in the middle part of providing holes bottom surface, each top and bottom providing holes end face; A moving contact is provided with in each moving contact installing hole; Inner end cap is dome shape, and each inner end cap is arranged on the position near moving contact in a top providing holes or bottom providing holes in opening mode outwardly; Helical spring and outer end cap is respectively equipped with in upper and lower part providing holes outside each inner end cap.The present invention's moving contact group adopts helical spring to apply clamping force by moving contact to fixed contact, because helical spring processing technology is simple, cost is low.And contact pressure easily controls, therefore security incident can not be caused therefrom.
Description
Technical field
The invention belongs to high-voltage switch electric appliance technical field, particularly relate to a kind of isolating switch moving contact group.
Background technology
Isolating switch is that a kind of being mainly used in will need the part had a power failure reliably to isolate with live part in high voltage distribution installation, carry out the high-voltage switch electric appliance of electrical isolation with guarantee equipment or line maintenance work safety, form primarily of housing, pedestal, stationary contact head group, moving contact group and spring energy agency.Fig. 1 be a kind of prior art isolating switch on moving contact group structural perspective.Fig. 2 is the moving contact group upper contact head spring structure schematic diagram shown in Fig. 1.As shown in Figure 1 and Figure 2, this moving contact group mainly comprises contact supporting 1, multi-disc moving contact 2 and multi-beam contact spring 3; Wherein the middle part of contact supporting 1 has been formed through multiple perforate; Touch spring 3 is arch sheet, on contact supporting 1, in each perforate, upper and lower side is connected with the middle part of a slice touch spring 3 respectively, touch spring 3 center outer surface is fixed with a slice moving contact 2, and the two ends of touch spring 3 and moving contact 2 are all positioned at contact supporting 1 outside.Its operation principle is that the elastic force provided by upper and lower two panels touch spring 3 makes two panels moving contact 2 can be movable in certain scope along the vertical direction, and namely two panels moving contact 2 can open up and down, thus makes fixed contact be clipped in wherein, reaches the object of conduction thus.But, there is following point in the moving contact group of this prior art: according to the requirement of isolating switch, this switch at least needs to connect and disjunction 6000 times, namely upper and lower two panels moving contact 2 at least needs the action of carrying out opening and recovering 6000 times, so require that touch spring 3 must have very high useful life, but because touch spring 3 conventional is at present 65Mn steel band, its manufacture method is by steel band itemize, off-chip, punching press, heat-treat after shaping, the shortcoming of this kind of material and processing mode is: 1, cost is high, uses duration.2, complex process, control overflow is high, due to its processing technology more complicated, such as heat treatment step, as bad in processed, the product produced will quality differ, therefore the qualification rate of product and useful life low, and examination requirements is high, once detect not tight, the touch spring 3 of existing defects is just easy to occur fractureing, at this moment isolating switch will be made to occur the fault of disconnected phase, result makes all the other phase voltages raise, and gently then burns subordinate's power consumption equipment, heavy then cause fire and other be difficult to expect consequence.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of isolating switch moving contact group.
In order to achieve the above object, isolating switch moving contact group provided by the invention comprises contact supporting, multiple moving contact, multiple inner end cap, multiple helical spring and multiple outer end cap; Wherein the middle part of contact supporting is formed along the longitudinal direction and organizes perforate more, the upper and lower part providing holes that often group perforate is arranged by spacing forms, and the end face of contact supporting is formed with multiple outer stomidium be connected with above-mentioned upper and lower part providing holes respectively with depression on bottom surface, be formed with a moving contact installing hole respectively to sunken inside along the longitudinal direction in the middle part of the bottom surface of each top providing holes and the end face of bottom providing holes simultaneously; Be respectively arranged with a moving contact in each moving contact installing hole, and the two ends of moving contact extend to contact supporting outside; Inner end cap is dome shape, and each inner end cap is arranged on the position near moving contact in a top providing holes or bottom providing holes in opening mode outwardly; A helical spring and an outer end cap is respectively equipped with in upper and lower part providing holes outside each inner end cap.
Described moving contact is cylindrical, and both ends are outwardly formed, simultaneously the cross section semicircular in shape of moving contact installing hole, and equal with the radius of moving contact installing hole in the middle part of moving contact.
Described outer end cap is made up of base plate and two fixing ears, wherein base plate ovalize, two fixing ears then stretch out and are formed downwards respectively in the middle part of the both sides straight flange of base plate, and the outer end bore edges simultaneously on contact supporting is outwards formed with two breach fixed ear respectively with above-mentioned two and coordinate.
The diameter of described outer stomidium is less than the maximum length on outer end cap between two fixing ears, is greater than the maximum length of base plate simultaneously.
Isolating switch moving contact group provided by the invention adopts helical spring to apply clamping force by moving contact to fixed contact, because helical spring processing technology is simple, cost is low.And contact pressure easily controls, therefore security incident can not be caused therefrom.In addition, because moving contact is cylindrical, therefore rolling plug-in type is become from plane plug-in type when dynamic/static contact closes, thus reduce the frictional force produced in contact closure process, improve the useful life of product, the mechanical bearing strength of switch operating mechanism in contact closure process can be made simultaneously to reduce.
Accompanying drawing explanation
Fig. 1 is a kind of isolating switch upper contact head supporting structure stereogram of prior art.
Fig. 2 is the moving contact group upper contact head spring structure schematic diagram shown in Fig. 1.
Fig. 3 is isolating switch moving contact group structural perspective provided by the invention.
Fig. 4 is the longitudinal partial structurtes cutaway view of isolating switch moving contact group provided by the invention.
Fig. 5 is isolating switch moving contact group STRUCTURE DECOMPOSITION schematic diagram provided by the invention.
Fig. 6 is the upper outside end cover structure stereogram of moving contact group shown in Fig. 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, isolating switch moving contact group provided by the invention is described in detail.
As shown in Fig. 3-Fig. 6, isolating switch moving contact group provided by the invention comprises contact supporting 4, multiple moving contact 5, multiple inner end cap 6, multiple helical spring 7 and multiple outer end cap 8; Wherein the middle part of contact supporting 4 is formed along the longitudinal direction and organizes perforate more, often organize the upper and lower part providing holes 9 that perforate is arranged by spacing, 10 compositions, and on the end face of contact supporting 4 and bottom surface depression be formed multiple respectively with above-mentioned upper and lower part providing holes 9, the 10 outer stomidiums 11 be connected, are formed with a moving contact installing hole 12 respectively to sunken inside in the middle part of the bottom surface of each top providing holes 9 and the end face of bottom providing holes 10 simultaneously along the longitudinal direction; Be respectively arranged with a moving contact 5 in each moving contact installing hole 12, and the two ends of moving contact 5 extend to contact supporting 4 outside; Inner end cap 6 is in dome shape, and each inner end cap 6 is arranged on the position near moving contact 5 in a top providing holes 9 or bottom providing holes 10 in opening mode outwardly; Upper and lower part providing holes 9 outside each inner end cap 6, is respectively equipped with a helical spring 7 and an outer end cap 8 in 10.
Described moving contact 5 is in cylindrical, and both ends are outwardly formed, simultaneously the cross section semicircular in shape of moving contact installing hole 12, and equal with the radius of moving contact installing hole 12 in the middle part of moving contact 5.
Described outer end cap 8 is made up of base plate 13 and two fixing ears 14, wherein base plate 13 ovalize, two fixing ears 14 then stretch out and are formed downwards respectively in the middle part of the both sides straight flange of base plate 13, and outer stomidium 11 edge simultaneously on contact supporting 4 is outwards formed with two breach 15 fixed ear 14 respectively with above-mentioned two and coordinate.
The diameter of described outer stomidium 11 is less than the maximum length on outer end cap 8 between two fixing ears 14, is greater than the maximum length of base plate 13 simultaneously.
Now isolating switch moving contact assembling method of completing the square provided by the invention and operation principle are described below:
Assembly method: first insert a moving contact 5 in each moving contact installing hole 12, then inner end cap 6 is put into top and the bottom providing holes 9 or bottom providing holes 10 in end face mode inwardly from outer stomidium 11, afterwards helical spring 7 is put into top and the bottom providing holes 9 or bottom providing holes 10 from outer stomidium 11, its the inner is contacted with the inner top surface of inner end cap 6, finally the fixing ear 14 of two on outer end cap 8 is aimed at two breach 15 on outer stomidium 11, and top and the bottom providing holes 9 or bottom providing holes 10 is put into from outer stomidium 11, then rotate to an angle, outer end cap 8 can be locked until fixing ear 14 leaves breach 15 place.
Operation principle: when this moving contact group being arranged on the pedestal on isolating switch, if moving contact group and the separated state of stationary contact head group, this state is called gate-dividing state, and the electric energy at this moment in electrical network cannot be supplied to power consumption equipment.When needing the power delivery of electrical network to power consumption equipment, under the effect of external force, the side of moving contact group to pedestal can be moved by spring energy agency, until fixed contact is inserted between upper and lower two moving contacts 5, compression helical spring 7, at this moment can be clamped fixed contact by the elastic force applied by helical spring 7, thus realize the reliable contacts between moving contact and fixed contact simultaneously, this state is called "on" position, and at this moment the electric energy of electrical network is just supplied to power consumption equipment by isolating switch.
Claims (2)
1. an isolating switch moving contact group, it comprises contact supporting (4), multiple moving contact (5), multiple inner end cap (6), multiple helical spring (7) and multiple outer end cap (8), wherein the middle part of contact supporting (4) is formed along the longitudinal direction and organizes perforate more, often organize the top providing holes (9) that arranged by spacing of perforate and bottom providing holes (10) forms, and the end face of contact supporting (4) is formed with multiple outer stomidium (11) be connected with described bottom providing holes (10) with described top providing holes (9) respectively with depression on bottom surface, a moving contact installing hole (12) is formed with respectively to sunken inside along the longitudinal direction in the middle part of the bottom surface of simultaneously each top providing holes (9) and in the middle part of the end face of bottom providing holes (10), be respectively arranged with a moving contact (5) in each moving contact installing hole (12), and the two ends of moving contact (5) extend to contact supporting (4) outside, inner end cap (6) is in dome shape, and each inner end cap (6) is separately positioned on the position near moving contact (5) in the position of moving contact (5) and bottom providing holes (10) in top providing holes (9) in opening mode outwardly, in described top providing holes (9) and described bottom providing holes (10), the outside of each inner end cap (6) is respectively equipped with a helical spring (7) and an outer end cap (8), it is characterized in that: described outer end cap (8) is made up of base plate (13) and two fixing ears (14), wherein base plate (13) ovalize, two fixing ears (14) then stretch out and are formed downwards respectively in the middle part of the both sides straight flange of base plate (13), and outer stomidium (11) edge simultaneously on contact supporting (4) is outwards formed with two breach (15) coordinated with described two fixing ears (14) respectively.
2. isolating switch moving contact group according to claim 1, it is characterized in that: the diameter of described outer stomidium (11) is less than the maximum length between upper two the fixing ears (14) of outer end cap (8), is greater than the maximum length of base plate (13) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739478.1A CN103681080B (en) | 2013-12-24 | 2013-12-24 | A kind of isolating switch moving contact group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739478.1A CN103681080B (en) | 2013-12-24 | 2013-12-24 | A kind of isolating switch moving contact group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103681080A CN103681080A (en) | 2014-03-26 |
| CN103681080B true CN103681080B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310739478.1A Active CN103681080B (en) | 2013-12-24 | 2013-12-24 | A kind of isolating switch moving contact group |
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| CN (1) | CN103681080B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185643A (en) * | 2015-09-28 | 2015-12-23 | 温州合邦电气有限公司 | Isolated moving contact group |
| CN107123556B (en) * | 2017-07-03 | 2020-06-02 | 北京博瑞莱智能科技集团有限公司 | Current contact and switching device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2847503Y (en) * | 2005-12-01 | 2006-12-13 | 厦门联容电控有限公司 | Novel contact for isolation switch |
| US20070144879A1 (en) * | 2005-12-27 | 2007-06-28 | Brown Frederick J | Current interrupter for a power network |
| CN101728113B (en) * | 2009-12-28 | 2012-09-05 | 施耐德万高（天津）电气设备有限公司 | Isolating switch with multi-element contacts |
| CN202373466U (en) * | 2011-12-19 | 2012-08-08 | 黄文平 | Switch movable contact device |
| CN203659722U (en) * | 2013-12-24 | 2014-06-18 | 施耐德万高（天津）电气设备有限公司 | Moving contact assembly for disconnecting switch |
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| CN103681080A (en) | 2014-03-26 |
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