CN217486111U - Wall bushing - Google Patents
Wall bushing Download PDFInfo
- Publication number
- CN217486111U CN217486111U CN202123041845.XU CN202123041845U CN217486111U CN 217486111 U CN217486111 U CN 217486111U CN 202123041845 U CN202123041845 U CN 202123041845U CN 217486111 U CN217486111 U CN 217486111U
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- Prior art keywords
- copper bar
- insulator
- wiring
- forms
- wiring portion
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Abstract
The utility model relates to a wall bushing, including insulator and copper bar, the shaping is pour to insulator an organic whole outside the copper bar, the copper bar is the T type, and copper bar one end is planar wiring portion, and the other end forms switching part, and wiring portion and switching part expose respectively in two insulating part outer ends of insulator, and the insulator forms the backplate in the wiring portion both sides of copper bar, and the insulator forms the sheath around the switching part of copper bar, and the top and one side of sheath are opened. The guard plates arranged on the two sides of the wiring part of the wall bushing increase the interphase creepage distance and improve the interphase insulation; the shape of the switch part of the copper bar can facilitate the opening and closing of the moving contact, and the sheath around the switch part increases the phase-to-phase creepage distance and improves the phase-to-phase insulation.
Description
Technical Field
The utility model belongs to the technical field of high-voltage electrical equipment, especially, relate to a wall bushing for high tension switchgear.
Background
The wall bushing is one of the main insulating parts of high-voltage electrical switchgear and is used as an insulating protection for the connection of high-voltage electrical appliances between compartments in a high-voltage switch cabinet. At present, one end of a wall bushing is provided with a static contact, the static contact is opposite to a knife switch of a moving contact and can be switched on and off with the moving contact, three phases in a switch cabinet are arranged side by side, only air exists between the contacts, no insulating material is used for separation, the voltage resistance is weak, and short circuit between the contacts is easy to occur.
Disclosure of Invention
In view of this, the present invention provides a wall bushing with an insulating partition and a long creepage distance.
In order to realize above mesh, the utility model discloses a wall bushing, including insulator and copper bar, the shaping is pour to insulator an organic whole outside the copper bar, the copper bar is the T type, and copper bar one end is planar wiring portion, and the other end forms switch portion, and wiring portion and switch portion expose respectively in two insulating part outer ends of insulator, and the insulator forms the backplate in the wiring portion both sides of copper bar, and the insulator forms the sheath around the switch portion of copper bar, and the top and one side of sheath are opened.
The utility model discloses further set up to it has the wiring nut to inlay on the inboard insulator of wiring portion of copper bar, and wiring portion corresponds the wiring hole that the wiring nut formed and the screw hole of wiring nut link up.
The utility model discloses further set up to the switch portion one corner of copper bar forms the cambered surface, and the cambered surface both sides are to the inside extension form outer narrow inner width's inclined plane, and the one side that faces the cambered surface on the sheath is the open face.
The utility model has the advantages that the guard plates arranged at the two sides of the wiring part of the wall bushing increase the interphase creepage distance and improve the interphase insulation of the busbar connection side; the switch portion shape of copper bar can make things convenient for the moving contact to open and shut, and the sheath around the switch portion increases alternate creepage distance, improves the alternate insulation of switch one side.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a perspective view of an embodiment of the present invention.
Fig. 3 is a front view of an embodiment of the present invention.
Fig. 4 is a partial cross-sectional view of an embodiment of the invention.
Detailed Description
As shown in fig. 1 to 4, a specific embodiment of the present invention is a wall bushing, including a porcelain bushing 1 and a copper bar 2, the porcelain bushing 1 is integrally poured and formed outside the copper bar 2, the porcelain bushing 1 includes a ring of fixing portion 11 with a middle portion protruding outwards and insulating portions 12 integrally formed on two sides of the fixing portion 11, the copper bar 2 is T-shaped, one end of the copper bar 2 is a planar wiring portion 21, the other end of the copper bar forms a switch portion 22, the wiring portion 21 and the switch portion 22 are respectively exposed at the outer ends of two insulating portions 12 of the porcelain bushing 1, one corner of the switch portion 22 of the copper bar 2 forms an arc surface 23, two sides of the arc surface 23 extend inwards to form an inclined plane 24 with a narrow outer width and a wide inner width, the porcelain bushing 1 forms a sheath 15 around the switch portion 22 of the copper bar 2, the top of the sheath 15 and the side of one side of the arc surface are open, the wiring nut 14 is embedded on the porcelain bushing 1 inside the wiring portion 21 of the copper bar 2, the wiring portion 21 corresponds to form a wiring hole 25 communicated with a threaded hole of the wiring nut 14, the porcelain bushing 1 forms guard plates 16 on both sides of the wiring portion 21 of the copper bar 2.
The present invention is not limited to the specific embodiments described and illustrated in detail herein, and other modifications and variations may be effected by one skilled in the art without departing from the spirit and scope of the invention. All such variations and modifications are intended to fall within the scope of the present invention. Moreover, all the components described herein may be replaced by other technically equivalent components.
Claims (3)
1. The utility model provides a wall bushing, includes insulator and copper bar, and the shaping is pour to insulator an organic whole outside the copper bar, its characterized in that: the copper bar is the T type, and copper bar one end is planar wiring portion, and the other end forms the switch portion, and wiring portion and switch portion expose respectively in two insulating portion outer ends of insulator, and the insulator forms the backplate in the wiring portion both sides of copper bar, and the insulator forms the sheath around the switch portion of copper bar, and the top and one side of sheath are opened.
2. A wall bushing according to claim 1, wherein: the wiring nut is embedded on the porcelain bushing on the inner side of the wiring portion of the copper bar, and the wiring portion corresponds to the wiring nut to form a wiring hole which is communicated with a threaded hole of the wiring nut.
3. A wall bushing according to claim 1 or 2, wherein: one corner of the switch part of the copper bar forms an arc surface, two sides of the arc surface extend inwards to form an inclined surface with a narrow outside and a wide inside, and one side of the sheath facing the arc surface is an open surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041845.XU CN217486111U (en) | 2021-12-06 | 2021-12-06 | Wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041845.XU CN217486111U (en) | 2021-12-06 | 2021-12-06 | Wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217486111U true CN217486111U (en) | 2022-09-23 |
Family
ID=83303140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123041845.XU Active CN217486111U (en) | 2021-12-06 | 2021-12-06 | Wall bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217486111U (en) |
-
2021
- 2021-12-06 CN CN202123041845.XU patent/CN217486111U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |