CN117096689A

CN117096689A - Screen top small bus switching device

Info

Publication number: CN117096689A
Application number: CN202311125547.XA
Authority: CN
Inventors: 杜玉宇; 王宏; 刘德建; 杨宇; 仝新辉; 朱仰贺; 王耀振; 王帅; 孟伟航; 邹杨; 李宁; 吴晨; 王文山; 崔楷舜; 李明; 徐海霞
Original assignee: Heze Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: Heze Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2023-11-21

Abstract

The application discloses a switching device for a small bus on a screen top, relates to the technical field of switching of small buses, and is used for solving the technical problem of low switching efficiency of the small buses in the prior art. The switching device comprises an insulating shell, a fixing assembly and a switching assembly, wherein a clamping groove is formed in the insulating shell and used for clamping a small bus; the fixing component is arranged on the insulating shell and is used for fixing at least part of the small bus in the clamping groove; the switching assembly is in contact with the small bus. According to the application, the insulating shell is quickly fixed on the small bus through the fixing assembly, and the current on the small bus is transferred to the transfer assembly, so that when the current on the small bus is required to be transferred to other positions, only the external transfer line is required to be quickly connected with the transfer assembly, the efficiency of transferring the small bus can be greatly improved, and the safety of transferring the small bus can be greatly improved.

Description

Screen top small bus switching device

Technical Field

The application relates to the technical field of small bus switching, in particular to a screen top small bus switching device.

Background

In a power system, a secondary small bus is arranged on the top of a protective screen cabinet of a transformer substation, and is generally a solid copper bar with the diameter of 10mm to 16mm, and the solid copper bar is fixed on the top of the protective screen through a special base and used for connecting a voltage loop and an alternating current/direct current power supply loop between the screens.

However, the efficiency of switching the small bus bar is low in the prior art.

Disclosure of Invention

The application mainly aims to provide a switching device for a small bus on a screen top, which aims to solve the technical problem of low switching efficiency for the small bus in the prior art.

In order to solve the technical problems, the application provides a switching device for a small bus on a screen, which comprises:

the insulation shell is provided with a clamping groove which is used for clamping the small bus;

the fixing assembly is arranged on the insulating shell and is used for fixing at least part of the small bus in the clamping groove;

and the switching component is contacted with the small bus and switches the current on the small bus to the outside.

In one possible implementation manner, the insulating housing is provided with a threaded hole communicated with the clamping groove, and the fixing assembly comprises a fixing piece, wherein the fixing piece is connected with the threaded hole through threads, and the fixing piece is used for fixing the busbar.

In one possible embodiment, the fixing member includes a fixing stud, and the fixing stud is connected with the threaded hole through threads.

In one possible embodiment, the end of the fixing stud near the busbar is provided with a fixing nut.

In one possible implementation manner, the number of the threaded holes and the number of the fixing studs are multiple, and the fixing studs are in one-to-one correspondence with the threaded holes.

In one possible implementation manner, the insulating shell is provided with a switching groove, and the switching assembly comprises a switching metal sheet and a switching terminal which are connected with each other;

the switching metal sheet is installed in the clamping groove, the switching terminal is installed in the switching groove, the switching metal sheet is used for switching the current on the small bus to the switching terminal, and the switching terminal is used for switching the current on the small bus to the outside.

In one possible embodiment, the adapter metal sheet is attached to the inner wall of the clamping groove and matches the shape of the clamping groove.

In one possible embodiment, the adapter terminal comprises an adapter tongue and an adapter connector, the adapter tongue is connected with the adapter metal sheet, an adapter connector is arranged on the adapter connector, and the adapter tongue extends into the adapter connector.

In one possible embodiment, the adapter device further comprises an insulating bracelet.

In one possible embodiment, the insulating bracelet is provided with a pick-up opening.

Compared with the prior art, the application has at least the following beneficial effects:

according to the small bus switching device on the screen top, the insulating shell is quickly fixed on the small bus through the fixing component, and the current on the small bus is switched to the switching component, so that when the current on the small bus is required to be switched to other positions, only the external switching line is required to be quickly connected with the switching component, the efficiency of switching the small bus can be greatly improved, and the safety of switching the small bus can be greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a switching device for a small bus on a screen top according to an embodiment of the present application;

fig. 2 is a schematic perspective view of an adapter device according to an embodiment of the present application when the adapter device is fixed on a small bus;

FIG. 3 is a schematic top view of an adapter according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of the portion A-A of FIG. 3, provided by an embodiment of the present application;

fig. 5 is a schematic perspective view of an adapting tongue embodying an adapting device according to an embodiment of the present application;

FIG. 6 is a schematic cross-sectional view at B-B in FIG. 3, provided in accordance with an embodiment of the present application.

Reference numerals: 1. an insulating housing; 2. a clamping groove; 3. a fixing assembly; 31. a fixing nut; 32. fixing a stud; 4. a switching component; 41. switching the metal sheet; 42. a transfer terminal; 421. a transfer tongue; 422. an adapter; 4221. a transfer port; 5. an insulating bracelet; 51. a taking port; 6. a small bus; 7. and (3) a threaded hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present application, "plurality" means a positive integer greater than one, such as two, three, four, etc.

In the related art, the screens are connected through separate wires, and two sides of the screen are respectively in crimping connection with the screw positions on the base of the busbar, but as each base can be used for crimping, only two screws are required, the whole equipment is always fully connected when the equipment is put into production. Therefore, when the small bus is switched, the screws on the small bus mounting plate are required to be dismounted. In the related art, a common tool is a screwdriver and a vice for wrapping a dielectric tape to unscrew a screw and access an adapter wire. Therefore, the construction difficulty is high, the protection device is easy to lose voltage or short-circuit voltage and ground, great potential safety hazards exist, operation secondary voltage can be caused to be free to trip out due to improper operation, or the safety can be burnt out, and even personal electric shock accidents can occur. Therefore, in the related art, the current on the switching busbar 6 is not only low in efficiency, but also has a large potential safety hazard.

Referring to fig. 1-2, the application provides a switching device for a small bus on a screen, which comprises an insulating shell 1, a fixing component 3 and a switching component 4, wherein a clamping groove 2 is formed in the insulating shell 1, and the clamping groove 2 is used for clamping a small bus 6; the fixing component 3 is arranged on the insulating shell 1, and the fixing component 3 is used for fixing at least part of the small bus 6 in the clamping groove 2; the switching component 4 is in contact with the small bus 6 and switches the current on the small bus 6 to the outside.

The insulating shell 1 has the insulating function, and the clamping groove 2 on the insulating shell 1 is matched with the small bus 6. When the switching device is installed on the small bus bar 6, the small bus bar 6 passes through the clamping groove 2 on the insulating shell 1, and then the fixing component 3 is adjusted, so that the fixing component 3 abuts against the small bus bar 6, and the insulating shell 1 is fixed on the small bus bar 6. When the current on the small bus 6 needs to be transferred to other positions, only an external transfer line needs to be connected with the transfer assembly 4. Therefore, the switching device can be quickly fixed on the small bus 6 through the clamping groove 2 and the fixing assembly 3, the switching device can be further arranged on the small bus 6 in advance, and an external switching line is also more convenient to connect with the switching assembly 4. The current on the small bus bar 6 can be switched without disassembling the screw on the small bus bar mounting plate, so that the efficiency of switching the current on the small bus bar 6 can be greatly improved, and meanwhile, the safety of switching the current on the small bus bar 6 can be greatly improved.

Based on the above design, in this embodiment, the insulating housing 1 is fast fixed on the small bus 6 by the fixing component 3, and the current on the small bus 6 is transferred to the transferring component 4, when the current on the small bus 6 needs to be transferred to other positions, only the external transferring line needs to be fast connected with the transferring component 4, so that the efficiency of transferring the small bus 6 can be greatly improved, and the safety of transferring the small bus 6 can be greatly improved.

In some embodiments, referring to fig. 3-4, the insulating housing 1 is provided with a threaded hole 7 in communication with the clamping groove 2, and the fixing assembly 3 includes a fixing member, which is in threaded connection with the threaded hole 7, and is used for fixing the busbar 6.

When the insulating housing 1 needs to be fixed on the busbar 6, the fixing piece is rotated, and the fixing piece is connected with the threaded hole 7 through threads, so that the fixing piece can move towards the direction of the busbar 6 while rotating until the busbar 6 is abutted tightly through the fixing piece, and the insulating housing 1 can be fixed on the busbar 6. Thus, the insulating housing 1 can be quickly and conveniently fixed on the small bus 6 through the fixing piece, so that the switching device can be quickly and conveniently fixed on the small bus 6.

In some embodiments, referring to fig. 4-5, the fixing member includes a fixing stud 32, and the fixing stud 32 is screwed with the threaded hole 7. When it is desired to fix the insulating housing 1 to the busbar 6, the fixing stud 32 may be turned by a screwdriver until the fixing stud 32 abuts the busbar 6. In this way, the insulating housing 1 can be more conveniently and quickly fixed on the busbar 6 by rotating the fixing stud 32 by the screwdriver.

In some embodiments, referring again to fig. 4-5, a fixing nut 31 is mounted to the end of the fixing stud 32 near the busbar 6. When the fixing stud 32 is rotated, the fixing nut 31 contacts with the busbar 6 and abuts against the busbar 6, and since the diameter of the fixing nut 31 is larger than that of the fixing stud 32, the contact area between the fixing stud 32 and the busbar 6 can be increased, so that the busbar 6 can be abutted against more easily, and the switching device can be fixed on the busbar 6 more easily.

In some embodiments, referring to fig. 3 again, the number of threaded holes 7 and the number of fixing studs 32 are plural, and the plurality of fixing studs 32 are in one-to-one correspondence with the plurality of threaded holes 7. A fixing stud 32 is provided in one threaded hole 7, and the insulating housing 1 can be more stably fixed to the busbar 6 by a plurality of fixing studs 32.

In some embodiments, referring again to fig. 5, the insulating housing 1 is provided with a transfer slot, and the transfer assembly 4 includes a transfer metal sheet 41 and a transfer terminal 42 that are connected to each other; the switching metal sheet 41 is installed in the clamping groove 2, the switching terminal 42 is installed in the switching groove, the switching metal sheet 41 is used for switching the current on the miniature bus 6 to the switching terminal 42, and the switching terminal 42 is used for switching the current on the miniature bus 6 to the outside.

When the switching device is fixed to the busbar 6, the switching metal piece 41 is in contact with the busbar 6, and the current on the busbar 6 flows to the switching metal piece 41 because the switching metal piece 41 has conductivity, and the current on the switching metal piece 41 flows to the switching terminal 42 because the switching metal piece 41 is connected to the switching terminal 42. When the current on the small bus 6 needs to be transferred to other positions, an external transfer line is connected with the transfer terminal 42. In this way, the current on the busbar 6 can be more conveniently transferred to other positions through the transfer metal sheet 41 and the transfer terminal 42.

In some embodiments, referring again to fig. 5, the adaptor metal sheet 41 is attached to the inner wall of the clamping groove 2 and matches the shape of the clamping groove 2. The shape of the switching metal sheet 41 is the same as that of the clamping groove 2, and the switching metal sheet 41 is tightly attached to the inner wall of the clamping groove 2. In this way, when the switching device is fixed on the busbar 6, the switching metal sheet 41 is more easily contacted with the busbar 6, so that the current on the busbar 6 is more easily switched to other positions.

Preferably, the insulating housing 1 is further provided with a mounting groove communicated with the clamping groove 2, and the adapting metal sheet 41 is mounted in the mounting groove. In this way, it is possible to more easily mount the adapter metal sheet 41 on the inner wall of the chucking groove 2.

In some embodiments, referring to fig. 6, the adaptor terminal 42 includes an adaptor tongue 421 and an adaptor 422, the adaptor tongue 421 is connected to the adaptor metal sheet 41, the adaptor 422 is provided with an adaptor opening 4221, and the adaptor tongue 421 extends into the adaptor opening 4221.

The adaptor 4221 may be a conventional socket, the adaptor 422 has an insulating effect, the adaptor tongue 421 can be conductive, and the current on the adaptor metal sheet 41 can flow to the adaptor tongue 421. When the current on the busbar 6 needs to be transferred to other positions, an external transfer line is inserted into the transfer port 4221 and is in contact with the transfer tongue 421. In this way, the current on the busbar 6 can be switched to other positions more quickly and conveniently.

In some embodiments, referring again to fig. 1, the switching device further comprises an insulating bracelet 5, and an operator can grasp the insulating bracelet 5 when in electrification, so that the insulating housing 1 is more convenient to fix on the small bus bar 6 and the operation is more convenient.

In some embodiments, referring again to fig. 1, the insulating wristband 5 is provided with a pick-up opening 51. During live working, an operator can stretch fingers into the taking opening 51, so that the operator can grasp the insulating bracelet 5 more conveniently.

In conclusion, the screw hole 7 and the switching terminal 42 are reserved at the top of the switching device, the whole shell of the switching device is made of insulating materials, the switching device can be directly installed in a live mode, electric shock caused by mistakes in the operation process is avoided, meanwhile, the switching metal sheet 41 is embedded at the bottom of the switching device, after the fixing stud 32 is screwed up, the current of the small bus 6 is conducted, and the current is transmitted to the switching terminal 42 at the top of the switching device, so that quick and safe temporary lap joint or switching work can be carried out. When traditional live working, at least one time of the screws on the small busbar mounting plate need to be dismounted for each lap joint line, if two times of screws need to be dismounted for temporary lap joint work, the time consumption is long, and the major potential safety hazard exists. After the switching device is used, screws on the small busbar mounting plate are not required to be detached, and the long-term overlapping circuit or the temporary overlapping circuit is detached later, the wiring is carried out through the switching terminal 42, the situation that the busbar mounting plate is touched is avoided, the electric shock risk is reduced, and the live working efficiency is improved.

The above description is merely illustrative of various embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the scope of the present application, and the application is intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A small bus switching device on top of a screen, characterized in that, switching device includes:

the device comprises an insulating shell (1), wherein a clamping groove (2) is formed in the insulating shell (1), and the clamping groove (2) is used for clamping a small bus (6);

a fixing assembly (3), wherein the fixing assembly (3) is arranged on the insulating shell (1), and the fixing assembly (3) is used for fixing at least part of the small bus bar (6) in the clamping groove (2); and

and the switching component (4) is in contact with the small bus (6) and switches the current on the small bus (6) to the outside.

2. The switching device for the small bus on the screen top according to claim 1, wherein the insulating shell (1) is provided with a threaded hole (7) communicated with the clamping groove (2), the fixing assembly (3) comprises a fixing piece, the fixing piece is connected with the threaded hole (7) through threads, and the fixing piece is used for fixing the small bus (6).

3. The small bus switching device on the screen according to claim 2, wherein the fixing piece comprises a fixing stud (32), and the fixing stud (32) is connected with the threaded hole (7) through threads.

4. A small overhead busbar switching device according to claim 3, characterised in that the fixing stud (32) is provided with a fixing nut (31) at one end close to the busbar (6).

5. The small bus switching device on the screen top according to claim 3, wherein the number of the threaded holes (7) and the number of the fixing studs (32) are multiple, and the fixing studs (32) are in one-to-one correspondence with the threaded holes (7).

6. The switching device for the small bus on the screen top according to claim 1, wherein a switching groove is formed in the insulating shell (1), and the switching assembly (4) comprises a switching metal sheet (41) and a switching terminal (42) which are connected with each other;

the switching metal sheet (41) is installed in the clamping groove (2), the switching terminal (42) is installed in the switching groove, the switching metal sheet (41) is used for switching the current on the miniature bus (6) to the switching terminal (42), and the switching terminal (42) is used for switching the current on the miniature bus (6) to the outside.

7. The switching device for the small bus on the screen top according to claim 6, wherein the switching metal sheet (41) is attached to the inner wall of the clamping groove (2) and is matched with the shape of the clamping groove (2).

8. The small bus switching device on top of a screen according to claim 6, wherein the switching terminal (42) comprises a switching tongue (421) and a switching head (422), the switching tongue (421) is connected with the switching metal sheet (41), a switching interface (4221) is arranged on the switching head (422), and the switching tongue (421) extends into the switching interface (4221).

9. The switching device for small bus on top of a screen according to claim 1, characterized in that it further comprises an insulating bracelet (5).

10. The small bus switching device on the screen top according to claim 9, wherein the insulating bracelet (5) is provided with a taking opening (51).