CN207116742U - A kind of communication power supply DC master row simultaneously connects present, detachable cable - Google Patents

Abstract

The utility model discloses a detachable cable connected to a DC busbar of a communication power supply in parallel, comprising a cable and a connecting terminal, and the connecting terminal comprises a terminal base, a fixing bolt, a connecting bolt and a groove that can move up and down inside the terminal base ; The terminal base includes a square shell, the upper bottom surface of the square shell is provided with bolt holes, the left side and the right side of the square shell are provided with mutually parallel rectangular holes, the square shell The lower bottom surface of the body is provided with a U-shaped opening, the rear part of the lower bottom surface is provided with a protrusion, the protrusion is provided with a wiring hole, the fixing bolt is installed on the upper part of the terminal base, and the wiring bolt is matched with the wiring hole. The DC busbars of the communication power supply of the utility model are connected with detachable cables in parallel. During the replacement of the communication power supply, two DC distribution screen cabinets can be connected to one high-frequency power supply to realize the stable and safe operation of the relay protection business.

Description

A communication power supply DC busbar connected in parallel with a detachable cable

technical field

The utility model relates to communication engineering, in particular to a detachable cable connected in parallel with a DC busbar of a communication power supply.

Background technique

With the increase of the operating life of the communication power supply, the increase of equipment failures and the increase of unsafe hidden dangers, there is a task of replacing the communication power supply every year. In the communication room of the substation, two sets of independent high-frequency power supply systems are installed, each set of power supply is connected to a DC distribution panel cabinet, and the dual power supplies of communication equipment (OTN, SDH, etc.) Stable operation; at the same time, single power supply devices such as relay protection interface devices can only be connected to one power supply.

However, at present, it takes a long time to replace the communication power supply of the substation. It takes 2-3 days to replace a set of high-frequency power supply. It is necessary to submit an application for interruption of relay protection business. The application will be rejected due to the safety of the power grid operation, which will delay the replacement of the power supply and increase safety. risk. During the power supply replacement, the single power supply time of the equipment is too long, and unsafe factors will also increase. Due to the limited number of screw holes in the wiring between two sets of independent power supplies, there is a problem of no screw holes for fixing, which brings difficulties to the connection of busbars.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a detachable cable connected to the DC busbar of the communication power supply. Stable and safe operation of electrical protection business.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A communication power supply DC busbar connected in parallel with a detachable cable, including a cable and a terminal, the terminal includes a terminal base, a fixing bolt, a connecting bolt and a groove that can move up and down inside the terminal base; the terminal base It includes a square shell, the upper bottom of the square shell is provided with bolt holes, the left and right sides of the square shell are provided with mutually parallel rectangular holes, and the lower bottom of the square shell is provided with There is a U-shaped opening, a protrusion is provided at the rear of the lower bottom surface, and a wiring hole is provided on the protrusion, the fixing bolt is installed on the upper part of the terminal base, and the wiring bolt is matched with the wiring hole.

Further, the left and right sides of the groove are respectively provided with protruding devices, and the width of the protruding devices is the same as the width of the rectangular holes on the left and right sides.

Further, the protruding device of the groove passes through the rectangular holes on the left and right sides, and can move up and down in the rectangular holes.

Further, insulating rubber is provided on the outside of the bottom of the groove, and the insulating rubber is fastened to the bottom of the groove.

Further, the fixing bolt passes through the upper bottom surface of the terminal base and contacts with the bottom of the groove.

Further, the U-shaped opening on the lower bottom surface is used for inserting the terminal bolts fixed on the busbar, and the depth of the opening should be able to ensure that the axis of the terminal bolts on the busbar is the same as that of the terminal bolts.

Further, the cables are fixed to the wiring holes on the lower bottom surface by using wiring bolts.

Further, both ends of the cable are connected to two connection terminals.

Further, a safety air switch is provided in the middle of the cable to ensure the safety of wiring.

Further, the safety air breaker in the middle of the cable can be replaced according to load requirements.

Further, the safety air switch device is an air switch or a knife switch.

Concrete work process of the present utility model is:

Fix the cable wires to the lower bottom of the terminal with terminal bolts, insert the terminal through the U-shaped opening on the lower bottom to the terminal bolts that have been fixed on the busbar, rotate the fixing bolt on the top of the terminal, and turn the groove downwards. Press until the insulating rubber is in close contact with the wiring bolts on the busbar. At this time, the bottom of the terminal is closely connected with the busbar, and the terminal is tightly fixed on the busbar.

Compared with the prior art, the beneficial effects of the utility model are:

The wiring terminal of the utility model has its own fixing device, which can be fixed on the DC busbar of the high-frequency power supply without bolts, which provides convenience for parallel connection of the busbars, and at the same time can be connected in parallel on the busbar. The application of disconnected cable wiring ensures the safe operation of the equipment during the replacement of the communication power supply.

Description of drawings

Figures 1a to 1c are the front view, left view and top view of the terminal block of the present invention, respectively;

Fig. 2 is a cable connection diagram of the present utility model;

Among them, 1. Square shell; 2. Fixing bolt; 3. Wiring bolt; 4. Groove; 5. Insulating rubber; 6. Rectangular hole; 7. U-shaped opening.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only a relative term determined for the convenience of describing the structural relationship between the various components or elements of the present utility model, and does not specifically refer to any component or element in the present utility model, and cannot It should be understood as a limitation of the present utility model.

In the present utility model, terms such as "fixed", "connected" and "connected" should be understood in a broad sense, which means that they can be fixedly connected, integrally connected or detachably connected; they can be directly connected or connected through Intermediaries are indirectly connected. For relevant researchers or technicians in the field, the specific meanings of the above terms in the present utility model can be determined according to specific situations, and should not be construed as limitations on the present utility model.

As introduced in the background technology, in the prior art, it takes a long time to replace the communication power supply of the substation. During the power replacement period, the single power supply time of the equipment is too long, and the unsafe factors increase. At the same time, the number of wiring screw holes between two sets of independent power supplies Limited, the problem of parallel connection of busbars is difficult. In order to solve the above technical problems, this application proposes a detachable cable for parallel connection of DC busbars of communication power supply.

As shown in Figures 1a to 1c, a DC busbar of a communication power supply is parallel connected with a detachable cable, including a cable and a terminal, and the terminal includes a terminal base, a fixing bolt (2), a connecting bolt (3) and A groove (4) that can move up and down inside the terminal base; the terminal base includes a square shell (1), the upper bottom surface of the square shell (1) is provided with bolt holes, and the square shell (1) ) are provided with mutually parallel rectangular holes (6) on the left side and the right side, the lower bottom of the square housing (1) is provided with a U-shaped opening (7), and the rear of the lower bottom is provided with a The protrusion is provided with a wiring hole, the fixing bolt (2) is installed on the upper part of the terminal base, and the wiring bolt (3) is matched with the wiring hole.

The left and right sides of the groove (4) are respectively provided with protruding devices, and the width of the protruding devices is the same as that of the rectangular holes (6) on the left and right sides.

The protruding device of the groove passes through the rectangular holes (6) on the left and right sides, and can move up and down in the rectangular holes (6).

An insulating rubber (5) is provided outside the bottom of the groove (4), and the insulating rubber (5) is fastened to the bottom of the groove (4).

The fixing bolt (2) passes through the upper bottom surface of the terminal base and contacts with the bottom of the groove (4).

The lower bottom surface of the square casing (1) is slightly longer than the upper bottom surface.

The U-shaped opening (7) on the lower bottom surface is used to plug in the terminal bolts fixed on the busbar, and the depth of the opening should be able to ensure that the axis of the terminal bolts and the fixing bolts (2) are the same.

The cables are fixed on the wiring holes on the lower bottom surface with terminal bolts (3).

Both ends of the cable are connected to two terminals.

A safety air switch is provided in the middle of the cable to ensure the safety of wiring.

The air breaker in the middle of the cable can be replaced according to load requirements.

The safety open device is an air switch or a knife switch.

The connecting terminal is made of copper material as a whole.

The cable model is ZR-RVV.

Concrete work process of the present utility model is:

Fix the cable wires on the lower bottom of the terminal with terminal bolts (3), insert the terminal through the U-shaped opening (7) on the lower bottom to the terminal bolts that have been fixed on the busbar, and rotate the fixing bolts on the top of the terminal (2), press the groove (4) downward until the insulating rubber (5) is in close contact with the wiring bolts on the busbar. At this time, the bottom of the terminal is closely connected with the busbar, and the terminal is tightly fixed on the On the busbar.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (10)

1. a kind of communication power supply DC master row simultaneously connects present, detachable cable, it is characterised in that：Including cable and binding post, institute Stating binding post includes terminal base, fixing bolt, connection bolt and can be in the groove that terminal chassis interior moves up and down；Institute Stating terminal base includes a square casing, and the upper bottom surface of the square casing is provided with bolt hole, the left surface of the square casing Oblong aperture parallel to each other is provided with right flank, the bottom surface of the square casing is provided with U-shaped opening, the rear portion of the bottom surface Raised provided with one, projection is provided with wiring hole, and the fixing bolt is installed on terminal base top, the connection bolt and wiring Hole is coupled.

2. a kind of communication power supply DC master row as claimed in claim 1 simultaneously connects present, detachable cable, it is characterised in that described recessed The right and left of groove is respectively equipped with male means, and the width of male means is identical with the rectangular hole width of left and right side.

3. a kind of communication power supply DC master row as claimed in claim 2 simultaneously connects present, detachable cable, it is characterised in that described recessed The male means of groove pass through the oblong aperture of left and right side, and can be moved up and down in oblong aperture.

4. a kind of communication power supply DC master row as claimed in claim 1 simultaneously connects present, detachable cable, it is characterised in that described recessed The bottom outside of groove is provided with electro-insulating rubber, and electro-insulating rubber is buckled in bottom portion of groove.

5. a kind of communication power supply DC master row as claimed in claim 1 simultaneously connects present, detachable cable, it is characterised in that described solid Determine the upper bottom surface that bolt passes through terminal base, be in contact with bottom portion of groove.

6. a kind of communication power supply DC master row as claimed in claim 1 simultaneously connects present, detachable cable, it is characterised in that under described The U-shaped opening of bottom surface is used for the connection bolt that grafting is had attached on busbar, and opening depth will can ensure the wiring on busbar Bolt is identical with the fixing bolt axis on binding post.

7. a kind of communication power supply DC master row as claimed in claim 1 simultaneously connects present, detachable cable, it is characterised in that the electricity Cable is fixed on the wiring hole of bottom surface using connection bolt.

8. a kind of communication power supply DC master row as claimed in claim 1 simultaneously connects present, detachable cable, it is characterised in that the electricity Cable both ends are connected with two binding posts.

9. a kind of communication power supply DC master row as claimed in claim 1 simultaneously connects present, detachable cable, it is characterised in that the electricity Safety is provided among cable and is spaced apart device, for ensureing wiring safety.

10. a kind of communication power supply DC master row as claimed in claim 9 simultaneously connects present, detachable cable, it is characterised in that described Safety among cable, which is spaced apart device, to be changed according to loading demand.