CN211606019U

CN211606019U - Cable transfer box

Info

Publication number: CN211606019U
Application number: CN201922307973.0U
Authority: CN
Inventors: 易文灿; 伊洪枞; 貌剑杰; 李武斌; 吴基旺; 姜海港; 张伟
Original assignee: Zhuhai Huacheng Electronics Technology Design Institute Co ltd
Current assignee: Zhuhai Huacheng Electronics Technology Design Institute Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-09-29
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a cable transfer box, include: the power supply device comprises a box body, at least three copper bars, a CT power supply device and an electric control lock. The box body is provided with a wire inlet hole for penetrating a cable and a plurality of wire outlet holes, and one side of the box body is provided with a box door capable of being opened and closed. Three copper bars set up in the box, and the copper bar is connected with the box insulation, is equipped with two at least binding post on every copper bar. The CT power taking device is arranged in the box body, the electric control lock is arranged on the box body and used for locking the box door, and the electric control lock is electrically connected with the CT power taking device. According to the cable transfer box of the technical scheme, the electric control lock does not need to be additionally powered, when electric energy flows through the inlet wire of the cable transfer box, the electric control lock locks the box door, and electric shock safety accidents are avoided.

Description

Cable transfer box

Technical Field

The utility model relates to a power equipment field, in particular to cable transfer box.

Background

In the process of maintenance or modification of power equipment, cable switching is often needed to avoid power failure of the equipment during maintenance or modification, so that economic loss is reduced. The traditional cable transfer box door can also be opened and closed at will when electrified, easily causes the electric shock phenomenon, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a cable transfer box can pin the chamber door when electrified in the box, avoids the incident that the electric shock caused.

According to the utility model discloses a cable transfer box of first aspect embodiment, include: the box body is provided with a wire inlet hole for penetrating a cable and a plurality of wire outlet holes, and one side of the box body is provided with a box door which can be opened and closed; the at least three copper bars are arranged in the box body and are in insulated connection with the box body, and each copper bar is provided with at least two wiring terminals; the CT electricity taking device is arranged in the box body; and the electric control lock is arranged on the box body and used for locking the box door and is electrically connected with the CT power taking device.

According to the utility model discloses cable transfer box has following beneficial effect at least: the outgoing line of the power supply equipment is connected to three copper bars representing three phases sequentially through the incoming line hole and the coil of the CT power taking device, and the copper bars transmit electric energy to loads connected to the copper bars to realize a cable switching function. When the wire that passes the entrance hole is electrified, CT gets the electric installation and obtains the electric energy and give the electric control lock with the electric energy transmission through the magnetic field of inlet wire, and the electric control lock pins the chamber door, prevents that the chamber door can be opened under the electrified circumstances of copper bar, avoids causing the electric shock accident.

According to some embodiments of the utility model, the electric control lock pass through power conversion module with CT gets electric installation electric connection.

According to the utility model discloses a some embodiments still include high-voltage electricity display device, high-voltage electricity display device respectively with every copper bar electric connection.

According to some embodiments of the invention, the electrically controlled lock is a magnetic lock.

According to some embodiments of the utility model, the copper bar pass through the insulator with the box is insulating to be connected.

According to the utility model discloses a some embodiments, every on the copper bar binding post quantity is not less than the entrance hole with wire hole quantity sum.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a cable junction box according to an embodiment of the present invention;

reference numerals:

box 100, wire inlet 101, wire outlet 102, door 110,

the number of the copper bars 200, the insulators 201,

the CT power-taking device 300 is provided with a power-taking device,

the electric control lock 400, the adsorption iron plate 401,

the power conversion module 500 is provided with a power conversion module,

the high voltage live display device 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, according to the utility model discloses cable transfer box, including box 100, set up three copper bar 200, the CT on box 100 and get electric installation 300 and electric control lock 400. Copper bar 200 and box 100 insulated connection are equipped with two at least binding post on the copper bar 200. One side of the box body 100 is provided with a box door 110 which can be opened and closed, and the box body 100 is provided with a wire inlet hole 101 and a wire outlet hole 102 for passing through a cable. It is understood that the door 110 may be hinged to the cabinet 100 by a hinge, and the door 110 may be connected to the cabinet 100 by a slide rail, and the door 110 may be opened and closed by a push-pull type. The electric control lock 400 is electrically connected with the CT electricity taking device 300, when the electric control lock is used, an outgoing line of the power supply equipment sequentially penetrates through the wire inlet hole 101 of the cable transfer box and a coil of the CT electricity taking device 300 and then is connected to a wiring terminal of the copper bar 200, electric energy of the power supply equipment is transmitted to a cable connected to a load on the same copper bar 200 through the copper bar 200, and the loaded cable is connected with the load through the wire outlet hole 102 to realize power supply of the load. As long as power supply equipment's the line of being qualified for the next round of competitions is at the transmission electric energy, will produce magnetic field around the cable, and CT gets electric installation 300 and obtains the electric energy and transmit for electric control lock 400 through this magnetic field this moment, makes electric control lock 400 work and pins chamber door 110, prevents to open chamber door 110 under the electrified condition of copper bar 200 in box 100, causes the electric shock accident. It will be appreciated that the electrically controlled lock 400 may alternatively be a magnetic lock or an electrical lock which may be required to be used with a deadbolt.

In some embodiments, in order to prevent residual electric energy from remaining on the copper bar 200 during wiring, a high-voltage live display device 600 is arranged in the electric cabinet, and the high-voltage live display device 600 is electrically connected with each copper bar 200 respectively, so that whether the copper bar 200 is electrified or not can be displayed, double protection is formed, and electric shock safety accidents in the maintenance or transformation process are further reduced.

In some embodiments, the number of terminals on each copper bar 200 is not less than the sum of the number of wire inlet holes 101 and wire outlet holes 102 provided on the housing 100 in order to allow each terminal to withstand power within its rated range, i.e., to ensure that only one cable is connected to each terminal.

A cable junction box according to an embodiment of the present invention is described in detail below with reference to fig. 1 as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended to be limiting upon the specific nature of the invention described.

As shown in fig. 1, the cabinet 100 is a rectangular parallelepiped structure with a hollow interior, the door 110 is disposed on the upper side of the cabinet 100, and the front side of the door 110 is hinged to the cabinet 100 through a hinge. Two wire outlet holes 102 and a wire inlet hole 101 are arranged at the bottom of the box body 100 side by side, and the CT electricity taking device 300 is arranged near the wire inlet hole 101, so that an outlet wire of power supply equipment can conveniently penetrate through a coil of the CT electricity taking device 300 when penetrating through the wire inlet hole 101. In this embodiment, the electric control lock 400 is a magnetic lock, which has no bolt and no mechanical structure for locking the bolt, is not easy to damage, and is easy to control. The lock body of the electric control lock 400 is arranged at the frame of the door 110 behind the box body 100, an adsorption iron plate 401 for magnetic lock adsorption is arranged at the corresponding position on the door 110, and when the door 110 is closed, the adsorption iron plate 401 is in contact with the magnetic lock. Since the magnetic lock selected in this embodiment needs dc power supply, a power conversion module 500 is connected in series between the CT power taking device 300 and the electric control lock 400, and the power conversion module 500 can convert the electric energy obtained by the CT power taking device 300 into stable dc power and supply the stable dc power to the electric control lock 400. Referring to fig. 1, the cable transit box has three copper bars 200 for connecting a phase a, a phase B and a phase C of a power supply device and a load, respectively, and each copper bar 200 is fixed on a side wall of the box body 100 through insulators 201 at both ends. Since the box body 100 has one wire inlet hole 101 and two wire outlet holes 102, three terminals are provided on each copper bar 200. The high-voltage live display device 600 is arranged on the rear side wall of the box body 100, and the high-voltage live display device 600 is respectively connected with the three copper bars 200 through three conducting wires.

When the power supply device is used, the power supply device is firstly closed, the outgoing line of the power supply device passes through the wire inlet hole 101 of the cable transfer box and then passes through the coil of the CT power taking device 300 to be respectively connected with the three copper bars 200. The inlet wires of the load devices are respectively connected with the three copper bars 200 through the wire outlet holes 102 of the cable transfer box, the box door 110 is closed after the connection is finished, and then the power supply device is opened, so that the box door 110 can be locked. When the maintenance or the transformation, the power supply equipment is closed, the object needing to be maintained or transformed is replaced by the standby equipment, and the power supply equipment is opened again to supply power, so that the power failure time caused by the maintenance or the transformation can be reduced.

According to the utility model discloses cable transfer box has the electric control lock of getting the power supply of electric installation through CT, and the electric control lock need not extra power supply. When the electric energy flows through the inlet wire of the cable transfer box, the electric control lock locks the box door, so that electric shock safety accidents are avoided.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A cable transition box, comprising:

the box body is provided with a wire inlet hole for penetrating a cable and a plurality of wire outlet holes, and one side of the box body is provided with a box door which can be opened and closed;

the at least three copper bars are arranged in the box body and are in insulated connection with the box body, and each copper bar is provided with at least two wiring terminals;

the CT electricity taking device is arranged in the box body;

and the electric control lock is arranged on the box body and used for locking the box door and is electrically connected with the CT power taking device.

2. The cable transfer box of claim 1, wherein the electrically controlled lock is electrically connected to the CT power acquisition device through a power conversion module.

3. The cable junction box according to claim 1, further comprising a high voltage live display device, wherein the high voltage live display device is electrically connected to each of the copper bars respectively.

4. The cable transition box of claim 1, wherein the electrically controlled lock is a magnetic lock.

5. The cable transfer box of claim 1, wherein the copper bar is in insulated connection with the box body through an insulator.

6. The cable junction box of claim 1, wherein the number of said wire terminals on each of said copper bars is no less than the sum of the number of said wire inlet holes and said wire outlet holes.