CN216390401U - Novel equipotential wall bushing for switch cabinet - Google Patents
Novel equipotential wall bushing for switch cabinet Download PDFInfo
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- CN216390401U CN216390401U CN202123001264.3U CN202123001264U CN216390401U CN 216390401 U CN216390401 U CN 216390401U CN 202123001264 U CN202123001264 U CN 202123001264U CN 216390401 U CN216390401 U CN 216390401U
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Abstract
The utility model provides an equipotential wall bushing for a novel switch cabinet, and belongs to the technical field of insulation. The method comprises the following steps: the high-voltage shielding sleeve comprises a sleeve body, a high-voltage shielding sleeve, an equipotential conductor, a metal spring, a bolt and a nut, wherein the high-voltage shielding sleeve is arranged in the side wall of the middle part of the sleeve body; the copper bar is placed in the hollow structure of the sleeve body, the screw penetrates through a hole of the copper bar, the copper bar is located between the head of the bolt and the nut, the copper bar is in close contact with the bolt, and the copper bar is connected with the high-voltage shielding cylinder through the metal spring and the equipotential conductor.
Description
Technical Field
The utility model relates to the technical field of insulation, in particular to a novel equipotential wall bushing for a switch cabinet.
Background
The wall bushing is widely applied to a power switch cabinet in a power supply system and is mainly used for playing roles of connection transition and insulation isolation on a main bus passing through the switch cabinet. The wall bushing that sells and widely used on the existing market provides high-voltage lead terminal mostly, supplies the user of service to prepare lead wire connection to the generating line copper bar by oneself, and the installation level greatly influences the result of use, and experimental data shows, when the lead wire surpassed the high-voltage shielded area, the flashover degree of wall bushing, the discharge voltage that receives can sharply increase, reduce wall bushing life, with higher speed wall bushing inner chamber carbonization breakdown, greatly influence the safe operation of consumer.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a novel equipotential wall bushing for a switch cabinet, which can effectively improve the breakdown resistance of the wall bushing.
The technical scheme adopted by the embodiment of the utility model for solving the technical problem is as follows:
an equipotential wall bushing for a novel switch cabinet comprises a bushing body, a high-voltage shielding cylinder, an equipotential conductor, a metal spring, a bolt and a nut, wherein the high-voltage shielding cylinder is arranged in the side wall in the middle of the bushing body, the equipotential conductor is a cylindrical metal strip, one end of the equipotential conductor is fixedly connected with the high-voltage shielding cylinder, the other end of the equipotential conductor is sleeved inside the metal spring and is tightly wound by the first end of the metal spring, the second end of the metal spring is sleeved with a screw rod of the bolt, the nut is positioned between the head of the bolt and the metal spring, and the bolt, the metal spring in an elastic reset state and the equipotential conductor are all positioned inside a high-voltage shielding area formed by the high-voltage shielding cylinder;
put the copper bar in the hollow structure of sleeve pipe body, the copper bar is for being connected to bus voltage's conductor, the center of copper bar is equipped with the hole as the tie point, the screw rod passes the hole of copper bar, the copper bar is located the head of bolt with between the nut, the nut to the copper bar place direction is screwed, makes the copper bar with in close contact with between the bolt, and pass through metal spring and equipotential conductor with establish the connection between the high-voltage shielding section of thick bamboo.
Preferably, the inner surface of the hole of the copper bar is provided with a thread structure, and the copper bar is connected with the screw rod through a thread with matched thread size.
Preferably, the equipotential conductor is made of aluminum.
Preferably, the outer wall of the sleeve body is provided with a mounting hole.
Preferably, the sleeve body is internally provided with a ground terminal.
Preferably, the sleeve body is cast by epoxy resin.
According to the technical scheme, the novel equipotential wall bushing for the switch cabinet comprises a bushing body, a high-voltage shielding cylinder, an equipotential conductor, a metal spring, a bolt and a nut, wherein the high-voltage shielding cylinder is arranged in the side wall of the middle of the bushing body, the equipotential conductor is a cylindrical metal strip, two ends of the equipotential conductor are respectively connected with the inside of the high-voltage shielding cylinder and the inside of the metal spring, two ends of the metal spring are respectively sleeved with the equipotential conductor and a screw rod of the bolt, the nut is located between the head of the bolt and the metal spring, and the bolt, the metal spring in an elastic reset state and the equipotential conductor are all located in a high-voltage shielding area formed by the high-voltage shielding cylinder; the copper bar penetrates inside the hollow structure of sleeve pipe body, the screw rod passes the hole of copper bar, arrange the copper bar in between the head and the nut of bolt, the nut is screwed to copper bar place orientation back, make in close contact with between copper bar and the bolt, and establish through metal spring and equipotential conductor and high-voltage shielding section of thick bamboo and be connected, through the above-mentioned mode, can guarantee that the connection between copper bar and the high-voltage shielding section of thick bamboo is whole to be located high-voltage shielding region, improve the resistant breakdown performance of wall bushing effectively, ensure the safe operation of consumer.
Drawings
Fig. 1 is a structural diagram of the novel equipotential wall bushing for the switch cabinet.
Fig. 2 is a schematic circuit diagram of an equipotential wall bushing for a novel switchgear according to the present invention in practical application.
In the figure: the high-voltage shielding sleeve comprises a sleeve body 1, a high-voltage shielding cylinder 2, an equipotential conductor 3, a metal spring 4, a bolt 5, a nut 6, a copper bar 7 and a mounting hole 8.
Detailed Description
The technical scheme and the technical effect of the utility model are further elaborated in the following by combining the drawings of the utility model.
As shown in FIG. 1, the utility model provides an equipotential wall bushing for a novel switch cabinet, which comprises a bushing body 1, a high-voltage shielding cylinder 2, an equipotential conductor 3, a metal spring 4, a bolt 5 and a nut 6, wherein the high-voltage shielding cylinder 2 is arranged in a side wall in the middle of the bushing body 1, the equipotential conductor 3 is a cylindrical metal strip, one end of the equipotential conductor 3 is fixedly connected with the high-voltage shielding cylinder 2, the other end of the equipotential conductor 3 is sleeved inside the metal spring 4 and is tightly wound by the first end of the metal spring 4, the second end of the metal spring 4 is sleeved with a screw rod of the bolt 5, the nut 6 is positioned between the head of the bolt 5 and the metal spring, the bolt 5, the metal spring 4 and the equipotential conductor 3 can be taken as an integral connecting structure to replace a traditional high-voltage lead, when the metal spring 4 is in an elastic reset state, the connecting structure can be completely positioned inside a high-voltage shielding area formed by the high-voltage shielding cylinder 2, reducing discharge outside the high voltage shield region.
Put copper bar 7 in the hollow structure of sleeve pipe body 1, as shown in fig. 2, copper bar 7 is for being connected to the conductor of busbar voltage, the center of copper bar 7 is equipped with the hole, this hole is used for connecting the wall bushing, the screw rod of bolt 5 passes the hole of copper bar 7, make copper bar 7 be located between the head of bolt 5 and nut 6, nut 6 is after screwing to copper bar 7 place direction, make in close contact with between copper bar 7 and the bolt 5, and establish the connection through metal spring 4 and equipotential conductor 3 and high-voltage shielding section of thick bamboo 2.
Further, the inner surface of the hole of the copper bar 7 can be set into a thread structure, and the copper bar 7 is in threaded connection with the screw rod 5, wherein the thread size of the threaded connection is matched with that of the screw rod, so that the contact is more reliable.
Furthermore, the equipotential conductor can be made of aluminum; offer mounting hole 8 on the outer wall of sleeve pipe body 1, will wear wall sleeve pipe fixed mounting in assigned position through mounting hole 8, the inside ground terminal that is provided with of sleeve pipe body 1, sleeve pipe body 1 is pour by epoxy and is formed.
When a circuit is built, the bolt 5 and the nut 6 are separated by rotating, the bolt 5 is taken down and then is sleeved in a hole of the copper bar 7 in a rotating mode, the nut 6 is screwed in to fix the copper bar 7, the bottom of the bolt 5 is inserted into the metal spring and then loosened, and the bolt 5 is driven by the metal spring 4 to reset, so that the bolt 5, the metal spring 4 and the equipotential conductor 3 are all located in a high-voltage shielding area.
Through the structure, the connection between the copper bar and the high-voltage shielding cylinder can be ensured to be completely positioned in a high-voltage shielding area, the breakdown resistance of the wall bushing is effectively improved, the insulating property of the wall bushing is better improved, and the service life of the wall bushing is prolonged to ensure the safe operation of electric equipment.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (6)
1. The novel equipotential wall bushing for the switch cabinet is characterized by comprising a bushing body, a high-voltage shielding cylinder, an equipotential conductor, a metal spring, a bolt and a nut, wherein the high-voltage shielding cylinder is arranged in the side wall in the middle of the bushing body, the equipotential conductor is a cylindrical metal strip, one end of the equipotential conductor is fixedly connected with the high-voltage shielding cylinder, the other end of the equipotential conductor is sleeved in the metal spring and is tightly wound by the first end of the metal spring, the second end of the metal spring is sleeved with a screw rod of the bolt, the nut is positioned between the head of the bolt and the metal spring, and the bolt, the metal spring in an elastic reset state and the equipotential conductor are positioned in a high-voltage shielding area formed by the high-voltage shielding cylinder;
put the copper bar in the hollow structure of sleeve pipe body, the copper bar is for being connected to bus voltage's conductor, the center of copper bar is equipped with the hole as the tie point, the screw rod passes the hole of copper bar, the copper bar is located the head of bolt with between the nut, the nut to the copper bar place direction is screwed, makes the copper bar with in close contact with between the bolt, and pass through metal spring and equipotential conductor with establish the connection between the high-voltage shielding section of thick bamboo.
2. The novel equipotential wall bushing for a switchgear cabinet according to claim 1, wherein the inner surface of the hole of the copper bar has a threaded structure, and the copper bar is screwed to the screw rod with a matching thread size.
3. The novel equipotential wall bushing according to claim 1, wherein the equipotential conductor is made of aluminum.
4. The novel equipotential wall bushing for a switch cabinet according to claim 1, wherein a mounting hole is formed in an outer wall of the bushing body.
5. The equipotential wall bushing according to claim 1, wherein a grounding terminal is disposed inside the bushing body.
6. The novel equipotential wall bushing of claim 1, wherein the bushing body is formed by casting epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123001264.3U CN216390401U (en) | 2021-12-02 | 2021-12-02 | Novel equipotential wall bushing for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123001264.3U CN216390401U (en) | 2021-12-02 | 2021-12-02 | Novel equipotential wall bushing for switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216390401U true CN216390401U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123001264.3U Active CN216390401U (en) | 2021-12-02 | 2021-12-02 | Novel equipotential wall bushing for switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216390401U (en) |
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2021
- 2021-12-02 CN CN202123001264.3U patent/CN216390401U/en active Active
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