CN201153192Y - Elastic fastener connecting rectangular bus and shielding cover, bus dielectric tubular component - Google Patents
Elastic fastener connecting rectangular bus and shielding cover, bus dielectric tubular component Download PDFInfo
- Publication number
- CN201153192Y CN201153192Y CNU2007201862148U CN200720186214U CN201153192Y CN 201153192 Y CN201153192 Y CN 201153192Y CN U2007201862148 U CNU2007201862148 U CN U2007201862148U CN 200720186214 U CN200720186214 U CN 200720186214U CN 201153192 Y CN201153192 Y CN 201153192Y
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- China
- Prior art keywords
- protruding
- bus
- arc
- bus bar
- radome
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an elastic clamping piece (6) for the connection of a rectangular bus bar and a shield cover, and the elastic clamping piece has convenient use and reliable connection. The two sides of the elastic clamping piece are symmetrical, the middle part of the elastic clamping piece is provided with an arc top lug (61); after bending downwards from the arc top lug towards the two sides in an arc way, the elastic clamping piece extends downwards to form downward extending sections (62); a lateral extending arc section (63) is connected at the meshing part of the lower ends of the downward extending sections; the meshing part of the outer end of the lateral extending arc section is provided with an arc section on which lateral lugs (64) are arranged; the top lug and the two lateral lugs form a circular, the diameter of which is matched with that of the inner wall of the shield cover; the distance of the meshing part of the lower end of the downward extending sections is corresponding to the thickness of the bus bar (7). A bus bar insulated sleeve component is provided with an insulated sleeve (2), an annular shied cover (5) is embedded in the inner wall of the insulated sleeve, the elastic clamping piece (6) which is made of elastic metal material and is used for clamping the bus bar pops against the inner wall of the shield cover. The elastic clamping piece (6) for the connection of a rectangular bus bar and a shield cover is applied to the electric connection of the bus bar and the insulated sleeve shield cover in a high-voltage switch gear.
Description
Technical field
The utility model relates to flexible clamp piece and the bus insulation thimble assembly that high pressure switchgear assembly parts and assembly, particularly rectangular bus bar are connected with radome.
Background technology
In rated voltage is in the metal enclosed switchgear assembly of 40.5kV, in order to guarantee the insulation property after the primary conductive busbar passes through the metal shrouding of metal partion (metp) in the switchgear or switchgear cabinet, usually punching out bus casing installing hole on metal partion (metp) or shrouding, insulating sleeve is installed then, the high pressure conductive bus bar is passed from the endoporus of insulating sleeve, guarantee the reliable insulation of high pressure conductive bus bar and switchgear shell.
The insulating sleeve of the metal enclosed switchgear assembly use of 40.5kV at present is that epoxy resin is cast mostly, because the influence of factors such as the defective of sleeve structure design and material are not good, the inside pipe casing electric field pole is inhomogeneous, and causing switchgear to put into operation, a period of time rear sleeve is inner that serious partial discharge and corona take place.Especially in the bigger running environment of high humility or salt fog influence, the decreasing insulating of sleeve pipe is more obvious, gently then causes the switchgear emergency stop valve trip, and is heavy then cause serious fire.In order to improve the Electric Field Distribution in the bus casing, alleviate or eliminate partial discharge and corona in the sleeve pipe, many insulating parts manufacturer is provided with high-pressure side radome and ground radome at inside pipe casing, make the electric field of switchgear dividing plate or shrouding and sleeve pipe junction even, thereby reduce degree of discharge effectively, prolong the useful life of insulating sleeve, reduced the security incident that causes therefrom.
Between switchgear assembly cabinet and the cabinet to be connected busbar normally field erected at equipment operation, being embedded radome in the insulating sleeve can make the electric field of insulating sleeve and dividing plate junction become even, avoid or reduce partial discharge phenomenon, but increased the be connected operation of radome with busbar.Radome and rectangle busbar connected mode have following two kinds at present:
A kind of is welding multiply annealed copper wire or preset nut on radome, then the multiply annealed copper wire is connected with conductive bus bar.This method at first will be welded to the multiply annealed copper wire securely radome or be connected on the preset nut in the radome, join at the correspondence position of busbar then and beat the attachment screw hole, at last (about internal diameter Φ 100mm) connects lead in the narrow sleeve pipe in space, and busbar is electrically connected with radome.This is both loaded down with trivial details, a difficult again job.
Another kind method be busbar with on busbar, be inserted in cylindrical conductive rubber before busbar is connected, the endoporus of conductive rubber is contacted with busbar, cylindrical contacts with radome on the sleeve pipe, has guaranteed that busbar is connected with the good electrical of radome.This connection need not joined punching, installation is also comparatively convenient, but since busbar by behind the big electric current, the electric and magnetic oscillation of production very easily makes conductive rubber axially displaced in sleeve pipe, when the radome in conductive rubber and the sleeve pipe disengaged, it is more serious that electric discharge phenomena will become.
Summary of the invention
It is not only loaded down with trivial details but also difficult and be connected insecure problem that the radome that the utility model will solve metal current sealing high pressure switchgear assembly median generatrix insulating sleeve and bus are electrically connected existing operation, the flexible clamp piece and the bus insulation thimble assembly that provide rectangular bus bar of the present utility model to be connected with radome for this reason, adopt the utility model can guarantee good being electrically connected of rectangular bus bar and radome, and it is easy to connect operation.
For addressing the above problem, the technical solution adopted in the utility model comprises: the technical scheme of the flexible clamp piece that rectangular bus bar is connected with radome, and the technical scheme of bus insulation thimble assembly;
Its special character of the technical scheme that flexible clamp piece adopted that rectangular bus bar is connected with radome is described flexible clamp piece bilateral symmetry, it is protruding that its middle part has an arched top, bend back extension downwards down and have downward section to the both sides arc from arched top is protruding, connecing downward section lower end engagement is connected with side and prolongs segmental arc, side is prolonged segmental arc outer end engagement and is had the curved arc section, it is protruding to have side on this curved arc section, protruding and both sides, described top protruding 3 concyclic, these 3 concyclic diameters are corresponding with described radome inner diameter, and the spacing of described two downward sections lower end engagements is corresponding with described bus thickness.
The technical scheme that the bus insulation thimble assembly is adopted is to have insulating sleeve, insulating sleeve inwall place is embedded with the ring shielding cover, its special character is the flexible clamp piece of the described bus of clamping made of the useful elastic metallic material of described radome inwall top card, this flexible clamp piece bilateral symmetry, it is protruding that its middle part has an arched top, bend back extension downwards down and have downward section to the both sides arc from arched top is protruding, connecing downward section lower end engagement is connected with side and prolongs segmental arc, side is prolonged segmental arc outer end engagement and is had the curved arc section, it is protruding to have side on this curved arc section, protruding and both sides, described top protruding 3 concyclic, these 3 concyclic diameters are corresponding with described radome inner diameter, and the spacing of described two downward sections lower end engagements is corresponding with described bus thickness.
Flexible clamp piece of the present utility model adopt elastic metallic material particularly spring steel plate or spring steel wire make, spring steel plate is better than spring steel wire, because of the former contact-making surface is bigger, and good stability.
Flexible clamp piece bilateral symmetry of the present utility model is so it is protruding to have two described sides.
Bus described in the utility model also is referred to as busbar usually, because of its cross section is generally rectangle.
Protruding and both sides, described top protruding 3 concyclic, these 3 concyclic diameters are corresponding with described radome inner diameter, the spacing of described two downward sections lower end engagements is corresponding with described bus thickness, is meant that these 3 concyclic diameters equated with described radome inner diameter when engagement inboard, two downward sections lower ends was sandwiched in rectangular bus bar.
Under the flexible clamp piece user mode of the present utility model, described downward section lower end engagement clamps the busbar both sides, and described top is protruding and both sides are protruding presses closer in described radome inwall, and busbar is electrically connected with radome.
The use of described flexible clamp piece is, after busbar between high-tension switch cabinet connects, clamps the inboard of flexible clamp piece both sides curved arc section, stretches into sleeve pipe then, snaps in rectangle busbar relevant position and gets final product.
The flexible clamp piece that rectangular bus bar of the present utility model is connected with radome is because bilateral symmetry, it is protruding that the middle part has an arched top, both sides have downward section, downward section lower end is connected with side and prolongs segmental arc, side is prolonged the segmental arc outer end and is connected that to have side on the curved arc section protruding, push up protruding and both sides protruding 3 concyclic, its diameter is corresponding with described radome inner diameter, the spacing of two downward sections lower end engagements is corresponding with bus thickness, thus two downward sections grip in busbar, push up protruding and both sides are protruding then presses closer in the radome inwall, busbar is electrically connected with radome, its simple structure, easy to use, connect reliable.Bus insulation cover pipe coupling component of the present utility model, owing to be provided with described flexible clamp piece, so simple structure, the combination operation is convenient, busbar is electrically connected reliably with radome.
Description of drawings
Fig. 1 is the utility model bus insulation cover pipe coupling component structural representation;
Fig. 2 is Figure 1A-A cutaway view;
Fig. 3 is the flexible clamp piece structural representation that the utility model rectangular bus bar is connected with radome;
Fig. 4 is Fig. 3 end view.
Embodiment
One
The flexible clamp piece that rectangular bus bar is connected with radome, this flexible clamp piece bilateral symmetry, its middle part has an arched top protruding 61, bend back extension downwards down and have downward section 62 to the both sides arc from arched top is protruding, connecing downward section lower end engagement is connected with side and prolongs segmental arc 63, side is prolonged segmental arc outer end engagement and is had on this curved arc section of curved arc section and have side protruding 64, protruding and both sides, described top protruding 3 concyclic, these 3 concyclic diameters are corresponding with described radome inner diameter, and the spacing of described two downward sections lower end engagements is corresponding with described bus 7 thickness.+
Two
The bus insulation thimble assembly, have and place the insulating sleeve 2 that is fixed in high-tension switch cabinet dividing plate 3 through holes, the nearly outer wall of insulating sleeve place is embedded with ground radome 4, insulating sleeve inwall place is embedded with ring shielding cover 5, the flexible clamp piece 6 of the clamping bus 7 that card useful elastic metallic material in radome 5 inwalls top is made, this flexible clamp piece bilateral symmetry, its middle part has an arched top protruding 61, bend back extension downwards down and have downward section 62 to the both sides arc from arched top is protruding, connecing downward section lower end engagement is connected with side and prolongs segmental arc 63, side is prolonged segmental arc outer end engagement and is had on this curved arc section of curved arc section and have side protruding 64, protruding and both sides, described top protruding 3 concyclic, these 3 concyclic diameters are corresponding with described radome inner diameter, and the spacing of described two downward sections lower end engagements is corresponding with described bus 7 thickness.
Claims (2)
1, the flexible clamp piece that rectangular bus bar is connected with radome (6), it is characterized in that described flexible clamp piece bilateral symmetry, its middle part has an arched top protruding (61), have from protruding after the both sides arc is curved down, the extension downwards of arched top downward section (62), connecing downward section lower end engagement is connected with side and prolongs segmental arc (63), side is prolonged segmental arc outer end engagement and is had the curved arc section, has side protruding (64) on this curved arc section, protruding and both sides, described top protruding 3 concyclic, these 3 concyclic diameters are corresponding with described radome inner diameter, and the spacing of described two downward sections lower end engagements is corresponding with described bus (7) thickness.
2, the bus insulation thimble assembly, has insulating sleeve (2), insulating sleeve inwall place is embedded with ring shielding cover (5), the flexible clamp piece (6) that it is characterized in that the described bus of clamping that the useful elastic metallic material of described radome inwall top card is made, this flexible clamp piece bilateral symmetry, its middle part has an arched top protruding (61), have from protruding after the both sides arc is curved down, the extension downwards of arched top downward section (62), connecing downward section lower end engagement is connected with side and prolongs segmental arc (63), side is prolonged segmental arc outer end engagement and is had and have side protruding (64) on this curved arc section of curved arc section, protruding and both sides, described top protruding 3 concyclic, these 3 concyclic diameters are corresponding with described radome inner diameter, and the spacing of described two downward sections lower end engagements is corresponding with described bus thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201862148U CN201153192Y (en) | 2007-12-20 | 2007-12-20 | Elastic fastener connecting rectangular bus and shielding cover, bus dielectric tubular component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201862148U CN201153192Y (en) | 2007-12-20 | 2007-12-20 | Elastic fastener connecting rectangular bus and shielding cover, bus dielectric tubular component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201153192Y true CN201153192Y (en) | 2008-11-19 |
Family
ID=40128869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201862148U Expired - Lifetime CN201153192Y (en) | 2007-12-20 | 2007-12-20 | Elastic fastener connecting rectangular bus and shielding cover, bus dielectric tubular component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201153192Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465522B (en) * | 2007-12-20 | 2011-01-19 | 杭州欣美成套电器制造有限公司 | Elastic card piece connected with rectangular bus bar and shielding cover as well as bus bar insulated sleeve component |
-
2007
- 2007-12-20 CN CNU2007201862148U patent/CN201153192Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465522B (en) * | 2007-12-20 | 2011-01-19 | 杭州欣美成套电器制造有限公司 | Elastic card piece connected with rectangular bus bar and shielding cover as well as bus bar insulated sleeve component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081119 Effective date of abandoning: 20071220 |