CN101661848A - Contact assembly of isolating switch - Google Patents
Contact assembly of isolating switch Download PDFInfo
- Publication number
- CN101661848A CN101661848A CN200910179008A CN200910179008A CN101661848A CN 101661848 A CN101661848 A CN 101661848A CN 200910179008 A CN200910179008 A CN 200910179008A CN 200910179008 A CN200910179008 A CN 200910179008A CN 101661848 A CN101661848 A CN 101661848A
- Authority
- CN
- China
- Prior art keywords
- fingertip
- contact
- spring
- spring member
- contact assembly
- 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
Links
Images
Landscapes
- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses a contact assembly of an isolating switch, comprising a main contact (1) and an involutory contact (2), wherein the main contact (1) comprises an electric conduction base (3),a plurality of sensing fingers (6) and a spring component (4), wherein the electric conduction base (3) is provided with an inclined electric conduction contact surface (31), and the plurality of sensing fingers (6) are respectively connected with the spring component (4) so as to lead the rear ends of the sensing fingers (6) to be contacted with the electric conduction contact surface (31) of theelectric conduction base (3) in a conductive way under the action of the spring component (4). The contact assembly is characterized in that the rear ends of the sensing fingers (6) are straight. Asthe rear ends of the sensing fingers are set to be straight structure, the contact wire length between the rear ends of the sensing fingers and the electric conduction contact surface of the electricconduction base can be prolonged, and the self-cleaning function for a rear contact can be better realized.
Description
Technical field
The present invention relates to a kind of high voltage isolator, and relate in particular to the contact assembly in the high voltage isolator.
Background technology
High voltage isolator is the electric equipment of use amount maximum in the electric power system, existing high voltage isolator generally adopts the finger contact assembly, these finger contact assemblies are generally two horizontal fracture isolating switches of art, comprise relative a pair of fingertip substantially and can be inserted into this contact in the fingertip, be provided with spring described between to fingertip, so that with this to fingertip towards pressuring direction in opposite directions, make this only lean against on the contact that is inserted to fingertip.
But contact pressure little problem, particularly back contact that this traditional contact assembly exists fingertip and contact usually do not have from clear and wipe the oxide layer action, in servicely out of doors easily adhere to dust and oxidation heating, finally cause contact assembly to burn.
In order to overcome this problem, in authorizing the applicant's Chinese utility model patent the 200620000500.6th, disclose a kind of contact assembly, this contact assembly comprises the conductive base that is fixed on the conductive arm, the spring member that is connected with conductive base, plural at least fingertip and is provided with two axial symmetry contact-making surfaces and is fixedly connected on involutory contact on another conductive arm.Described fingertip is the strip conductor that an end is provided with discount, and the discount of each fingertip is resisted against on the inclined-plane of described conductive base by described spring member, and the other end is unsettled, inserts and the opening that takes out to form described involutory contact.Described spring member comprises a U-shaped plate, a cross structure and a plurality of extension spring, the root of two U-shaped wings of U-shaped plate is embedded in the discount of fingertip, thereby the discount of fingertip is pressed on the inclined-plane of conductive base, simultaneously, extension spring applies pulling force on fingertip, make fingertip only push down the contact that is inserted into wherein.
But in this contact assembly, although can improve the contact pressure of fingertip and contact by U-shaped plate and extension spring, the discount of fingertip and the contact area of conductive base are little, and owing to the existence of discount makes the processing difficulties of fingertip.
In order to improve the contact pressure of fingertip and contact, in addition, the applicant also once developed a kind of multiaspect contact contact assembly, described at Chinese utility model patent 20052014318.X, this contact assembly comprises a plurality of fingertips, fingertip is the strip conductor that an end has discount, spring member is a curve ruler, roughly constitute the box-like of one one end opening, comprise bottom surface and four sides that have the hole, extend internally by a discount at an end of opening, fingertip is arranged on four sides of spring member, the discount of spring member and the discount of fingertip fit together, and an end is unsettled, thereby constitute supply involutory contact to insert uncovered.But in this contact assembly, the end of fingertip still forms discount, cooperate with spring member being used for, thus this contact assembly still exists problems such as the contact area of fingertip and conductive base is little, fingertip processing difficulties.In addition, in this contact assembly, spring member is the flat spring assembly of one, flat spring fuses with a base plate that occupy the centre behind the U-shaped warpage near an end of conductive base, thereby form the spill tension base of receiving in the opening, the warpage of fingertip is stuck on the U-shaped warpage of flat spring, so that cooperatively interact.The processing difficulties that causes spring member like this, and can't adopt big thickness of material to make spring, make the coefficient of elasticity of spring be restricted, and then cause restriction contact pressure.
Summary of the invention
In view of these problems of the prior art, the applicant continues the contact assembly of high voltage isolator is studied, and has proposed a kind of new design that overcomes the problems referred to above.
Therefore, the object of the present invention is to provide a kind of contact assembly of high voltage isolator, this contact assembly can guarantee bigger contact pressure, makes simply, and makes fingertip and conductive base have good electrical contact, has better automatic cleaning action.
In order to achieve this end, according to the present invention, a kind of contact assembly is provided, this contact assembly comprises: comprise main contact and involutory contact, described main contact comprises conductive base, a plurality of fingertip, spring member, and conductive base has the conductive contact surfaces of inclination, and described a plurality of fingertips are connected with spring member respectively, so that the rear end of fingertip contacts with the conductive contact surfaces conduction of conductive base under the effect of spring member, the rear end of described fingertip is straight.
By straight structure is arranged in the rear end of fingertip, can improves the line length that contacts between the conductive contact surfaces of fingertip rear end and conductive base, and can realize automatic cleaning action better back contact.
Description of drawings
From the preferred implementation of describing in detail below in conjunction with accompanying drawing of the present invention, advantage of the present invention and purpose can be understood better, in the accompanying drawing:
Fig. 1 is the schematic diagram that the contact assembly of prior art is shown;
Fig. 2 is the schematic diagram that another contact assembly of the prior art is shown;
Fig. 3 is the perspective view that is illustrated in the spring member in the contact assembly shown in Figure 2;
Fig. 4 A and 4B are the cutaway views that the contact assembly of first preferred implementation according to the present invention is shown, and wherein Fig. 4 A is an off-state, and Fig. 4 B is a closure state;
Fig. 5 is the perspective view that the spring member in the contact assembly shown in Figure 4 is shown;
Fig. 6 is the perspective view that the involutory contact in the contact assembly shown in Figure 4 is shown;
Fig. 7 illustrates the perspective view that another kind has the involutory contact of special-shaped elongation connecting portion
Fig. 8 is the half sectional view that the contact assembly of second preferred implementation according to the present invention is shown;
Fig. 9 illustrates contact assembly shown in Figure 8 to horizontally rotate 90 degree half sectional view afterwards;
Figure 10 A to 10C illustrates the spring member in the contact assembly shown in Figure 8 and the perspective view of connecting rod;
Figure 11 is the half sectional view that the contact assembly of the 3rd preferred implementation according to the present invention is shown;
Figure 12 A and 12B are respectively end view and the end-views that is illustrated in second improvement project on the basis of contact assembly shown in Figure 11;
Figure 13 is the perspective view that the contact assembly of the 4th preferred implementation according to the present invention is shown;
Figure 14 is the perspective view that is illustrated in the modification on the basis of contact assembly shown in Figure 13;
Figure 15 is the perspective view that the spring member of the contact assembly of the 4th preferred implementation according to the present invention is shown;
Figure 16 is the perspective view that is illustrated in second kind of modification on the basis of contact assembly shown in Figure 13; And
Figure 17 A and 17B illustrate the cutaway view according to another kind of modification of the present invention, and wherein Figure 17 A illustrates involutory contact and do not insert state before, and Figure 17 B illustrates the state after involutory contact is incorporated into.
Embodiment
Describe in detail with reference to the accompanying drawings according to preferred implementation of the present invention; Reference numeral identical among the figure is represented identical or similar elements in institute's drawings attached; it being understood that execution mode described herein is an illustrative, and be not in order to limit protection scope of the present invention.
Fig. 1 is the end view that contact assembly of the prior art is shown.As shown in Figure 1, this contact assembly comprises the conductive base 34 that is fixed on the conductive arm 11, the spring member that is connected with conductive base, fingertip 61 and the involutory contact 27 that will contact with fingertip 61.Conductive base 34 both sides axial symmetry are furnished with two inclined-planes 31, and fingertip 61 is a strip conductor, and are provided with discount 610 at the one end, and this discount 610 contacts with the inclined-plane of conductive base 34.Spring member comprises a U-shaped plate 46, a cross structure 97 and a plurality of extension spring 12, cross structure 97 is fixedlyed connected with the end face of described conductive base 34 on the one hand by securing member, be connected with U-shaped plate 46 on the other hand, the end of the both wings of U-shaped plate is inserted in the discount 61 of fingertip, be provided with extension spring 12 between the relative fingertip 61, so that with the both sides of fingertip 61 flexible fastenings at U-shaped plate 46.
This contact assembly is as a kind of replacement scheme of existing contact assembly, can increase the contact pressure between fingertip and the involutory contact, and because when involutory contact 27 inserts, fingertip 61 can turn over a low-angle around the contact point (back contact) of fingertip and conductive base, thereby make back contact have a micro-creep, can remove the oxide layer under the nature.
But, although this contact assembly can improve the contact pressure between fingertip and the involutory contact to a certain extent, but for the load current that progressively promotes at present, still can not meet the demands well, in addition, the discount of fingertip and conductive base contact position causes the manufacturing process complexity of fingertip, little with the contact area of conductive base, the removal ability of oxide layer is also had much room for improvement.
In order further to improve the ampacity of fingertip and involutory contact, a kind of multiaspect contact-type contact assembly has been proposed.As shown in Figures 2 and 3, this contact assembly comprises the conductive base 3 that is fixed on the conductive arm 11, the spring member that is connected with conductive base, fingertip 61 and the involutory contact 2 that will contact with fingertip 61.Spring member comprises curve ruler 4, as shown in Figure 3, this curve ruler 4 is roughly the box-like of one one end opening, have four sides and a bottom surface, four sides form a cantilever slab by discount 44 to the back bending folding at an end of opening, and the center as the blind end 42 of this box-like bottom surface has the hole, and securing member 96 passes this hole spring member is fixed on the conductive base 3.Fingertip 61 is that one one end has the strip conductor of discount 610, and is arranged on four sides of spring member, links together by the free end of connector 7 with cantilever slab.The discount 44 of spring member is inserted in the discount 610 of fingertip 61, and fingertip discount 610 is pressed on the conical surface 31 of conductive base 3.
This contact assembly is by arranging that on the four sides fingertip is to increase the contact pressure of fingertip and involutory contact, but, because all there are discount in fingertip and spring member, therefore, the processing technology complexity of fingertip and spring member, the contact area of fingertip and conductive base is little, can not effectively remove oxide layer, simultaneously, because spring member needs bending, therefore, can not adopt thicker material to make spring member, thereby can not obtain higher contact line length.
In order to overcome these problems of the prior art, the inventor has proposed a kind of novel contact assembly, 4 arrives accompanying drawing 17 detailed descriptions according to preferred implementation of the present invention and modification with reference to the accompanying drawings.In the following description, will be called front end towards an end of main contact 1 opening, and conductive base 3 residing ends are called as the rear end.
First preferred implementation
Shown in Fig. 4 A and Fig. 4 B, structure of contact terminal divides two parts, and main contact 1 and involutory contact 2 are installed on respectively on isolating switch both sides conductive arm 11 and 21, conductive arm 11,21 is installed in rotatable post insulator top, isolating switch both sides respectively, and connects with terminal block is electric.When the isolating switch operating mechanism drove post insulator to a direction rotation, both sides conductive arm level was swung in opposite directions, the operation that realization is closed or divided,
Main contact 1 comprises conductive base 3, fingertip 6, spring member 4, fingertip locating rack 5, open stand 91, support bracket bolt 90, connector 7.
The quadrangular shape curved slab that spring member 4 is mainly surrounded by a steel spring plate as shown in Figure 5, is made of a closed bottom 40 and four sides 41.Be provided with porosely in the approximate centre position of closed bottom 40, connecting rod 9 passes this hole so that structural member-for example conductive base 3 is connected with fixing with spring member 4.Each side 41 is divided into a plurality of flat springs 410 and is integral with blind end 40, can be formed by a steel spring plate bending.The flat spring end has slotted eye 411, in spring member 4 inboards, also is provided with open stand 91 and rotatable support nut 90, and this open stand 91 is connected with connecting rod 9 end thread by support nut 90, is used for regulating spring member opening size.The opening direction of spring member is consistent with the main contact opening direction.
Described location-plate vertically is arranged in the contact zone 31 of conductive base 3.Being used for limiting the fingertip rear end only slides it in operation along conductive contact surfaces 31 surface longitudinals.Described fingertip 6 is evenly separated by fingertip location-plate 5,
Fingertip 6 is a strip conductor, and an end is outwardly-bent, and to form the opening that inserts for involutory contact 2, the other end is straight, contacts with the contact-making surface 31 of conductive base.Described straight be with respect to the bending head, if it has bending or inclination slightly, also should be in the scope of " straight " this term.
Fingertip 6 middle parts have slotted eye, are connected with spring member 4 with the securing member 7 of the slotted eye 411 of slotted eye by passing fingertip 6 and spring member 4 open end.
As shown in Figure 7, for ease of heat radiation, the tubular conductive arm of user in heavy current disconnecting switches, involutory contact 24 can be made the petal-shaped structure of special-shaped elongation with tabular conductor, the connecting portion 28 of petal-shaped end elongation has the hole, and fixedlys connected with conductive arm 21 by bolt.The contact zone 22 of its root cydariform projection adapts with the opening inner edge of main contact 1.
Shown in Fig. 4 A, on spring member 4 each side, form three flat springs 41 by cutting, and corresponding three fingertips 6, and by securing member, for example link and pin are connected in the slotted eye of flat spring end.The connecting rod 9 that the blind end 40 of spring member 4 is provided with passes conductive base 3,
Totally ten two fingertips 6 in three on every limit is connected in the periphery of spring member 4, and an end of fingertip 6 form one uncovered, the other end (flat end) is resisted against on the conductive base contact-making surface.Under the support of open stand 91, uncoveredly be horn-like opening, when the action that isolating switch closes a floodgate, make involutory contact 2 under stressed little situation, be incorporated into main contact 1 earlier.Conductive arm and conductive base are wedged the fingertip inboard under the movable parts of isolating switch promote then, thereby by fingertip 6 rear ends leaf spring 41 are prized distortion and breaks away from open stand, shown in Fig. 4 B.Involutory contact 2 makes fingertip 6 prize leaf spring 41 distortion and break away from open stand 91 and supports, and at this moment the fingertip rear and front end closely is squeezed in the contact zone of involutory contact 2 and conductive base 3 peripheries under the elastic force effect of pulling spring 41,
The conduction motion parts of described isolating switch comprises conduction moving component and structural member.Moving component is used to make conductive arm motion, the members such as flange shaft that include driving wheel, driver plate, locating wheel and be fixed on the post insulator top.Structural member is connected with the terminal block holding electrical, for example comprises members such as shell.
Connecting rod 9 also can connect with other any parts (for example terminal block pedestal) that relative terminal block is fixed.If the existing isolating switch of adapted, then relative motion does not take place in fingertip and conductive base in operation, and connecting rod can directly be fixedlyed connected with conductive arm.
Although in the present embodiment, demonstrate and on each side of spring member, form three flat springs, and three fingertips are set correspondingly, but it will be appreciated by those skilled in the art that the present invention is not limited thereto, but two or more flat springs and fingertip can be set on each side as required.
Shown in Fig. 4 A and 4B, the conductive contact surfaces 31 contacted ends of fingertip 6 and conductive base below become the rear end, for straight, do not form discount, therefore, can guarantee that fingertip 6 contacts with the good of conductive base 3, simultaneously, be inserted in the process of main contact 1 at involutory contact 2, to slide along conductive contact surfaces 31 in the rear end of fingertip 6, thereby removed the oxide layer on the conductive contact surfaces 31, have good automatic cleaning action.
Second preferred implementation
8-10 describes contact assembly according to a second, preferred embodiment of the present invention in detail with reference to the accompanying drawings.The difference of second preferred implementation and above-described first preferred implementation is spring member, therefore, is only described at the difference part of the two below.
Spring member according to the contact assembly of present embodiment comprises two U-shaped flat springs 81 and 82, shown in Figure 10 A and 10B, and, two flat springs 81 and 82 intersect mutually and fasten, the U-shaped bottom of the first U-shaped flat spring 81 is provided with porose 811, so that coupling bar 9 passes from this hole 811, and be connected with the U-shaped bottom of the second U-shaped flat spring 82.Shown in Figure 10 C, an end that is connected with the second U-shaped flat spring 82 of connecting rod 92 hereinafter referred to as front end, has fork configuration, so that be inserted in two slotted eyes 822 of second U-shaped flat spring U-shaped bottom formation.But, be appreciated that this structure is exemplary, can adopt other any ways, for example be threaded and wait the identical effect that realizes.
Be similar to first execution mode, be formed with slotted eye, so that be connected with fingertip 6 by connector 7,7 ' at the front end of the U-shaped branch 821 of the first and second U-shaped flat springs.
In this embodiment, cancelled open stand, but the second U-shaped flat spring 82 can play the effect of open stand.For further increase fingertip 6 in vertical direction with the contact pressure of involutory contact 2, be provided with extension spring 12 in addition between two relative in vertical direction fingertips 6, that is to say, three extension springs 12 are set in vertical direction, respectively the relative a pair of fingertip 6 of vertical direction is applied pulling force.For the ease of extension spring is set, be provided with slotted eye 823 in the corresponding position of the U-shaped branch of the second U-shaped flat spring 82, arrive relative fingertip 6 to allow extension spring 12 therefrom to pass.
In this embodiment, the first U-shaped flat spring is connected with the fingertip single-point, its counterparty to contact zone 31 be provided with locating support 5, be connected and the second U-shaped plate is at 2 with fingertip, the counterparty to conductive seat contact zone 31 do not establish the fingertip locating rack.
Except the advantage of first execution mode, also has the big advantage of vertical direction contact pressure according to the contact assembly of this execution mode.Because spring member 4 is made of two U-shaped flat springs 81 and 82, can simplify the processing technology of spring member.Owing to cancelled open stand, can avoid the adjustment operation in the open stand installation, simplify the assembling process of contact assembly.
When involutory contact 2 is incorporated into the fingertip inboard with little power rotation, conductive base 3 is wedged the fingertip inboard under the promotion of isolating switch moving component, make fingertip drive U-shaped leaf spring 81,82 and extension spring 12 distortion, thereby fingertip 62,63 two ends are closely contacted with the conductive contact surfaces 31 of involutory contact 2 and conductive base 3.
The 3rd preferred implementation
Figure 11 shows the contact assembly of the 3rd preferred implementation according to the present invention, and this contact assembly is applicable to the small-sized isolating switch that rated current is little.
As shown in figure 11, according to the contact assembly of present embodiment comprise fingertip 6 be distributed in both sides, overall structure is the main contact of both sides, for this reason, conductive base 34 has the conductive contact surfaces 31 of inclination in relative both sides, and the cross section of conductive base 34 is trapezoidal.Spring member 81 is the U-shaped flat spring, and openend is towards the opening of main contact.And the end in the U-shaped branch of U-shaped flat spring is provided with slotted eye, so that be connected with each fingertip 6 respectively by connector 7.
Be provided with fingertip locating rack 94 in the inboard of U-shaped flat spring 81.Connecting screw rod 9 passes fingertip locating rack 94 and U-shaped leaf spring 81, and the fingertip rear end that is distributed in the spring member both sides leans against on the conductive contact surfaces 31 of conductive base, and one of opposite side formation is uncovered.
This execution mode contact pressure is suitable, is suitable for the isolating switch of existing step action, and corresponding, its connecting screw rod 9 can be fixed on conductive base 34 or the conductive arm 11.
Similarly, connector 7 is made up of link and pin, and passes the slotted eye at fingertip middle part and the slotted eye of U-shaped leaf spring end,, both are rotatably connected to together.
Thus, fingertip locating rack 94 plays the effect of the open stand in first execution mode simultaneously, has simplified the structure of whole contact assembly.
12 descriptions are according to the improvement projects of contact assembly of the present invention with reference to the accompanying drawings.
Figure 12 A and 12B are illustrated in second improvement project of making on the first execution mode basis.In this second improvement project, the cross section of main contact 1 no longer is a quadrangle, but is polygon, shown in Figure 12 B.In order to adapt to this modification, spring member is the polygon prismatic box-like of an end opening, and can fix a fingertip 6 on each side.Described conductive base is in its laterally inclined polygonal conduction contact zone that is arranged to correspondence.
In this improvement project, the polygon that the conduction contact zone of the projection of involutory contact periphery is arranged to be complementary is if the limit number is more, then involutory contact is circular contact zone, the way of contact is some contact, this contact execution mode compact conformation and operational reliability height, but complex process.
The 4th preferred implementation
Figure 13 shows the contact assembly according to the 4th execution mode of the present invention, and its identical part repeats no more.
Contact assembly according to four embodiment of the invention comprises main contact 1 and involutory contact 2.Its main contact 1 mainly comprises conductive base 3, fingertip 63 and spring member 4, also comprises members such as external spring 47, connecting rod 9, first connector 7 and second connector 7 '.
As shown in figure 13, in this embodiment, the shape of spring member 4 is identical with embodiment one, and different is: the root at leaf spring 41 also has slotted eye 412, is used for wearing first connector 7.The slotted eye 411 of openend is in order to wear second connector 7 '.Spring member 4 is distributed with three leaf springs 41 on each side, respectively the fingertip 63 of corresponding equal number.Have the hole at its blind end 40 places, pass for a connecting rod 9.Connecting rod 9 passes conductive base 3 fixedlys connected with the structural member of the conduction motion parts of isolating switch, and conductive arm 11 is connected with the conduction moving component.
Be incorporated into the fingertip inboard when involutory contact 2 rotates with little power, conductive base 3 is wedged the fingertip inboard under the promotion of isolating switch moving component, makes fingertip prize leaf spring 41 distortion, thereby fingertip 63 two ends are closely contacted with conductive contact surfaces 31 with involutory contact 2.
This embodiment has simplified the structure of main contact 1 when improving the back contact contact pressure.
Other modification
Figure 14 is illustrated in the modification of carrying out on the basis of the 4th execution mode.Wherein, the sheet spring 47 on the relative fingertip 6 is in the horizontal direction replaced by extension spring 12, and adopts front end to have the connecting rod 92 of bifurcation structure.Other aspects are identical with the 4th execution mode.
Figure 15 shows the perspective view according to the spring member of contact assembly shown in Figure 13, and flat spring 410 ends have slotted eye 411 among the figure, and root has slotted eye 412.
Figure 16 shows the another kind of modification on the basis of the execution mode of Figure 13, wherein, spring member is removed at formed two faces of vertical direction, only adopt spring member 82 with built-in several extension springs 12 relative fingertip to be connected U-shaped flat spring 82 both sides, this execution mode is fit to the existing isolating switch body of adapted.
Figure 17 A and 17B illustrate the cutaway view according to another modification of the present invention, and wherein, Figure 17 A illustrates involutory contact 2 and do not insert state before, and Figure 17 B illustrates the state after involutory contact 2 is incorporated into.
Therefore similar in involutory contact 2 and the above-mentioned execution mode omit the description to it.
The spring member 4 of the main contact in this modification is made of sheet spring 47, the sheet spring is arranged on the outside of each fingertip 6, be provided with the bearing support 48a of the four prismatic tapers that a steel plate is welded in the inboard of fingertip 6, this bearing support only plays fixation and nonelastic function, this bearing support center has the hole, be connected with the shell of driving gear of isolating switch by connecting rod 9, and conductive arm 11 directly is connected with the driving member of described transmission mechanism.This bearing support 48a is connected fingertip 6 and external sheet spring 47 hinges around the bearing support 48a by the connector 7 that is located in the peripheral slotted eye, the pin that is sheet spring 47 connected pieces of arcuation is pressed on the fingertip outside in advance, fingertip 6 one ends are withstood on the conductive seat contact-making surface 31, before involutory contact 2 is not incorporated into, shape by bearing support makes fingertip 6 left ends surround a horn-like opening, after involutory contact is incorporated into less power swing, conductive arm 11 and conductive seat 3 are to left movement, make fingertip 6 be strutted by conductive seat 3, thereby make sheet spring 47 be compressed distortion, flat spring elastic force is applied on the contact point 31 of the contact point of involutory contact 2 and conductive seat 3 by fingertip 6 two ends.
This modification has been avoided making the big problem of above-mentioned curved structure spring (matrix) technology difficulty, and improved the mechanical endurance of spring, has simplified Installation and Debugging.
Describe preferred implementation of the present invention in detail with reference to accompanying drawing above, but it will be appreciated by those skilled in the art that the present invention is not limited to these execution modes, but can on the basis of these execution modes, make multiple modification and improvement.Feature in one of them execution mode can be combined and constitute new execution mode with other execution modes, and the structure described in each execution mode, for example the structure of connector 7 is exemplary, and those skilled in the art can contemplate other multiple structures and realize identical functions.Therefore, scope of the present invention is limited only by the accompanying claims.
Claims (20)
1. the contact assembly of an isolating switch, comprise main contact (1) and involutory contact (2,24), described main contact (1) comprises conductive base (3,34), a plurality of fingertip (6,62,63), spring member (4), conductive base (3,34) has the conductive contact surfaces (31) of inclination, described a plurality of fingertip (6,63) is connected with spring member (4) respectively, so that the rear end of fingertip under the effect of spring member (4) (6) contacts with conductive contact surfaces (31) conduction of conductive base (3), it is characterized in that the rear end of described fingertip is straight.
2. contact assembly as claimed in claim 1, it is characterized in that, described spring member is the quadrangular shape curve ruler of an end opening, have closed bottom (40) and four sides (41), the opening direction of this spring member (4) is consistent with the opening direction of described main contact (1), each side is divided into a plurality of flat springs (410), and is formed with slotted eye (411) in the end of each flat spring part, is connected with each fingertip (6) respectively being used for.
3. contact assembly as claimed in claim 2, it is characterized in that, described main contact (1) also comprises the open stand (91) that is positioned at described spring member (4) inboard, and can be conditioned with along the moving axially of connecting rod (9), thereby change it at the inboard axial location of spring member (4).
4. contact assembly as claimed in claim 1, it is characterized in that, described spring member (4) comprises the first U-shaped flat spring (81) and the second U-shaped flat spring (82), the described first U-shaped flat spring (81) and the second U-shaped flat spring (82) intersect and fasten, and the described first U-shaped flat spring and the second U-shaped flat spring are fixing by connecting rod (9).
5. contact assembly as claimed in claim 4 is characterized in that, strides across described spring member (4), between the relative in vertical direction a pair of fingertip (63), also is provided with extension spring (12), to apply pulling force described between to fingertip.
6. contact assembly as claimed in claim 1, it is characterized in that, described spring member (4) is the U-shaped flat spring, the opening direction of this U-shaped flat spring is consistent with the opening direction of described main contact, and two U-shaped branch is divided into a plurality of flat spring parts separately, the front end of each flat spring part is formed with slotted eye, so that be connected with corresponding fingertip (6).
7. contact assembly as claimed in claim 6, it is characterized in that described main contact (1) also comprises fingertip locating rack (94), described fingertip locating rack (94) is fastened on the described U-shaped flat spring (4), and extend to the outside of U-shaped flat spring (4), to locate each described fingertip (6).
8. contact assembly as claimed in claim 1, it is characterized in that, described spring member (4) is the polygon prism-shaped of an end opening, constitute by a plurality of sides and a bottom surface, fix corresponding fingertip (6) on each side respectively, described conduction contact zone (31) is complementary with the polygon that fingertip (6) inner face surrounds.
9. contact assembly as claimed in claim 8, it is characterized in that, described main contact (1) also comprises the open stand (91) that is positioned at described spring member (4) inboard, described open stand (91) is fixing by connecting rod (9), and can be conditioned with along the moving axially of connecting rod (9), thereby change it at the inboard axial location of spring member (4).
10. contact assembly as claimed in claim 1, it is characterized in that, described spring member is the quadrangular shape curved plates of an end opening, have closed bottom (40) and four sides (41), the opening direction of this spring member (4) is towards described conductive base (3), each side is divided into a plurality of flat springs (410), and root and end at each flat spring 410 are formed with slotted eye (412) and (411), are connected to be used for forming with the rear end at 2 with spring member at the middle part with each fingertip (63) respectively.
11. contact assembly as claimed in claim 10 is characterized in that, also is provided with sheet spring (47) in the outside of each fingertip (63), and is connected the front end of spring member (4) by connector (7).
12. contact assembly as claimed in claim 10, it is characterized in that, the outside along each fingertips (63) of the both sides up and down of vertical direction is provided with sheet spring (47), and spring member (4) is provided with extension spring (12) between the fingertip (63) of both sides relatively in the horizontal direction.
13. contact assembly as claimed in claim 1, it is characterized in that, described spring member (4) is that U-shaped is tabular, described fingertip (63) is distributed in two sides, be connected the front end of spring member by interior extension spring of establishing (12), fingertip (63) is connected with spring member (4) rear end by connector (7 '), constitutes 2 connections.
14. contact assembly as claimed in claim 13 is characterized in that, described connecting rod (92) front end is to fixedly connected with a rod member in the tabular its rear end of bifurcated.
15. as each described contact assembly in the claim 1 to 14, it is characterized in that, the petal-shaped structure that described involutory contact (24) extends for the abnormal shape that electric conducting material surrounds, the inner face that the fingertip (6,63) of the conduction contact zone (22) of its cydariform projection and main contact (1) surrounds is complementary, and the connecting portion (28) of its end elongation is fixedlyed connected with described high voltage isolator conductive arm (21).
16. as each described contact assembly in the claim 1 to 15, it is characterized in that, described spring member (4) is connected by the structural member of described connecting rod (9,92) with isolating switch conduction motion parts, and described conductive arm (11) is fixedlyed connected with isolating switch conduction moving component.
17. contact assembly as claimed in claim 1, it is characterized in that, described spring member (4) comprises the sheet spring (47) that is arranged on each fingertip outside, and described contact assembly also comprises and is arranged on the inboard stiff bearing support (48a) of described fingertip (6), and this bearing support (48a) is connected bearing support (48a) on every side by connector (7) with fingertip (6) and sheet spring (47) hinge that is arranged on outside the described fingertip.
18. contact assembly as claimed in claim 17 is characterized in that, the four prismatic tapers that support frame as described above (48a) is welded into for steel plate.
19., it is characterized in that support frame as described above (48a) heart therein is provided with porosely as claim 17 or 18 described contact assemblies, by this hole, connecting rod (9) is connected with driving gear of isolating switch.
20., it is characterized in that described main contact also comprises fingertip locating rack (5) as each described contact assembly in the claim 1 to 19, to prevent that fingertip (6) rear end is with respect to conductive base (3) lateral shift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910179008A CN101661848A (en) | 2009-10-09 | 2009-10-09 | Contact assembly of isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910179008A CN101661848A (en) | 2009-10-09 | 2009-10-09 | Contact assembly of isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101661848A true CN101661848A (en) | 2010-03-03 |
Family
ID=41789786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910179008A Pending CN101661848A (en) | 2009-10-09 | 2009-10-09 | Contact assembly of isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101661848A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012163272A1 (en) * | 2011-06-03 | 2012-12-06 | Yan Miaojiang | Male contact and break component for isolator switch |
| CN103155072A (en) * | 2010-08-13 | 2013-06-12 | Abb技术股份公司 | Electrical contact arrangement, especially for an air insulated medium voltage circuit breaker |
| CN103700520A (en) * | 2013-12-25 | 2014-04-02 | 施耐德万高（天津）电气设备有限公司 | Isolating switch moving contact group capable of improving contact stability |
| CN103050240B (en) * | 2012-12-17 | 2015-12-02 | 国网浙江省电力公司电力科学研究院 | A kind of Transformer Bushing Tap signal ejector |
| CN107171095A (en) * | 2017-05-18 | 2017-09-15 | 平顶山市华安电气有限公司 | A kind of transformer cable plug-in joint |
| CN107633981A (en) * | 2017-11-07 | 2018-01-26 | 徐州新电高科电气有限公司 | A kind of breaker contact system |
| CN108054048A (en) * | 2018-01-19 | 2018-05-18 | 广东必达电器有限公司 | A kind of combined type heavy current disconnecting switches contact finger structure |
| CN110265264A (en) * | 2019-05-27 | 2019-09-20 | 浙江格蕾特电器股份有限公司 | Novel moving contact component and relay |
| CN112136198A (en) * | 2018-05-10 | 2020-12-25 | 三菱电机株式会社 | Switch with a switch body |
-
2009
- 2009-10-09 CN CN200910179008A patent/CN101661848A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103155072A (en) * | 2010-08-13 | 2013-06-12 | Abb技术股份公司 | Electrical contact arrangement, especially for an air insulated medium voltage circuit breaker |
| CN103155072B (en) * | 2010-08-13 | 2015-11-25 | Abb技术股份公司 | Be particularly useful for the Electical connector of air insulation medium voltage breaker |
| WO2012163272A1 (en) * | 2011-06-03 | 2012-12-06 | Yan Miaojiang | Male contact and break component for isolator switch |
| CN103050240B (en) * | 2012-12-17 | 2015-12-02 | 国网浙江省电力公司电力科学研究院 | A kind of Transformer Bushing Tap signal ejector |
| CN103700520A (en) * | 2013-12-25 | 2014-04-02 | 施耐德万高（天津）电气设备有限公司 | Isolating switch moving contact group capable of improving contact stability |
| CN107171095B (en) * | 2017-05-18 | 2023-06-27 | 平顶山市津电智能科技有限公司 | Cable plug-in type connector for transformer |
| CN107171095A (en) * | 2017-05-18 | 2017-09-15 | 平顶山市华安电气有限公司 | A kind of transformer cable plug-in joint |
| CN107633981A (en) * | 2017-11-07 | 2018-01-26 | 徐州新电高科电气有限公司 | A kind of breaker contact system |
| CN107633981B (en) * | 2017-11-07 | 2019-09-13 | 徐州新电高科电气有限公司 | A kind of breaker contact system |
| CN108054048A (en) * | 2018-01-19 | 2018-05-18 | 广东必达电器有限公司 | A kind of combined type heavy current disconnecting switches contact finger structure |
| CN112136198A (en) * | 2018-05-10 | 2020-12-25 | 三菱电机株式会社 | Switch with a switch body |
| CN110265264A (en) * | 2019-05-27 | 2019-09-20 | 浙江格蕾特电器股份有限公司 | Novel moving contact component and relay |
| CN110265264B (en) * | 2019-05-27 | 2024-03-19 | 浙江格蕾特电器股份有限公司 | Novel moving contact assembly and relay |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101661848A (en) | Contact assembly of isolating switch | |
| CN1214423C (en) | Vacuum disconnector | |
| EP2341519A1 (en) | Vacuum circuit breaker | |
| CN104934259B (en) | Fall automatic power-off switch with spring reset | |
| CN208157335U (en) | A kind of operating mechanism and breaker of breaker | |
| CN111711009B (en) | Contact finger structure, electric connection structure, channel selector and power divider | |
| CN1209776C (en) | Circuit breaker forced extinguisher | |
| CN201655562U (en) | Finger-shaped contact assembly for a high voltage isolator | |
| CN107026042B (en) | The fine motion list of dual spring limits universal switch | |
| CN201084627Y (en) | A high-pressure isolation switch contact assembly | |
| CN201230108Y (en) | Electric connector | |
| CN114050066A (en) | High-voltage switch with buffer device | |
| CN101645374B (en) | Device for connecting moving contact of breaker | |
| CN2899084Y (en) | Spin-dle seizing mechanism of circuit breaker | |
| CN2893898Y (en) | High voltage isolated switch contact assembly | |
| CN108389750B (en) | Isolator and static contact assembly thereof | |
| CN220324865U (en) | Switch mechanism and socket | |
| CN2588515Y (en) | Contact for high-voltage isolation switch | |
| CN107017097B (en) | Double-elastic-piece micro-motion limiting compound universal switch | |
| CN209282063U (en) | Toaster and switch device thereof | |
| CN106067395B (en) | Limit switch and breaker | |
| CN113643932B (en) | Driving mechanism for high-voltage switch | |
| CN215118808U (en) | Operating mechanism of frame circuit breaker | |
| CN217485323U (en) | Arc striking device and circuit breaker | |
| CN2409604Y (en) | Timing and back spring structure for circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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: 20100303 |