CN211701830U

CN211701830U - Capacitive power supply adopting high-voltage cable connector

Info

Publication number: CN211701830U
Application number: CN202020589807.4U
Authority: CN
Inventors: 高少军; 郑国鑫; 黎景伦; 李方庚; 周胜青; 王伦展
Original assignee: ZHEJIANG HUACAI TECHNOLOGY CO LTD
Current assignee: ZHEJIANG HUACAI TECHNOLOGY CO LTD
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-10-16
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses an adopt high tension cable to connect capacitanc power, including ware body, set up at inside copper nut, high-voltage capacitor group, metallic shield cover, reactor, transformer, protection circuit of ware body, and install metal bottom plate and the aviation socket at ware body lower extreme, the transformer includes that the transformer is elementary and the transformer is secondary, copper nut, high-voltage capacitor group, metallic shield cover, reactor, transformer are elementary, protection circuit, metal bottom plate connect gradually and constitute series circuit, through the setting of above-mentioned structure for capacitanc power overall structure is compact, and insulating nature is good, and the security is high, can use with the high tension cable joint cooperation of standard, is applicable to cabinet body environment such as high-voltage looped netowrk cabinet, high-voltage branch cabinet, and the full insulation closed cable occasion uses.

Description

Capacitive power supply adopting high-voltage cable connector

Technical Field

The utility model relates to an adopt high tension cable to connect's capacitanc power.

Background

A large number of metering, monitoring and protection devices are used in smart grids, and these electronic devices require a power supply. Along with the rapid development of electronic devices, the power consumption of electronic equipment is lower and lower, and in recent years, a capacitor voltage-reducing type small power supply is used on a power grid, so that the power supply well meets the power supply requirement of the electronic equipment for the power grid, and compared with the traditional electromagnetic type mutual inductor power supply, the power supply has the advantages of low self power consumption, small volume, light weight, less consumption of nonferrous metals such as copper, iron and the like. However, the different capacitance step-down type small power supplies have different structural characteristics and are suitable for different occasions.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a convenient to use, easy operation, the connection of being convenient for can be fit for cabinet body environment such as high-tension loop-network cabinets, high-pressure branch cabinet, the capacitanc power that adopts high tension cable to connect that full insulation closed cable occasion was used.

In order to solve the above problem, the utility model adopts the following technical scheme:

a capacitive power supply adopting a high-voltage cable connector comprises a body, a primary copper nut, a high-voltage capacitor bank, a metal shielding cover, a reactor, a transformer, a protection circuit, a metal bottom plate and an aviation socket, wherein the primary copper nut, the high-voltage capacitor bank, the reactor, the protection circuit, the metal bottom plate and the aviation socket are arranged in the body, the transformer comprises a primary transformer and a secondary transformer, the primary transformer, the high-voltage capacitor bank, the metal shielding cover, the reactor, the primary transformer, the protection circuit and the metal bottom plate are sequentially connected and form a series circuit, the primary copper nut is a high-voltage input terminal, the metal bottom plate is connected with the ground and forms a working loop, and the secondary transformer is connected with an output voltage end.

Preferably, the metal shielding case is of a cylindrical structure, the high-voltage capacitor bank is arranged inside the metal shielding case, and the metal shielding case is connected with the ground and forms a shielding layer of ground potential.

Preferably, the upper end of the body is a conical structure.

Preferably, the high-voltage capacitor bank is formed by connecting a plurality of capacitors in series, and the number of the capacitors can be adjusted according to the rated working voltage of the power supply.

Preferably, the primary copper nut, the high-voltage capacitor bank, the metal shielding case, the reactor and the transformer are poured and fixed through epoxy resin to form a whole.

The utility model has the advantages that:

1. the primary copper nut, the high-voltage capacitor bank, the metal shielding case, the reactor and the transformer are poured by epoxy resin, and the insulating structure is reasonable, compact in structure, small in size and convenient to manufacture.

2. The high-voltage access part of the transformer body is designed into a conical structure and can be matched and assembled with a standard high-voltage cable connector.

3. The high-voltage capacitor bank is surrounded by the metal shielding cover, and a high-voltage electric field is sealed in the shielding cover to form a full-insulation sealing structure.

4. The high-voltage capacitor bank is formed by connecting a plurality of capacitors in series, and different rated working voltages can be adapted by increasing or decreasing the number of the capacitors.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the scope of the present invention is not limited thereto.

FIG. 1 is a schematic view of the structure principle of the present invention;

the high-voltage capacitor comprises a primary copper nut 1, a high-voltage capacitor bank 2, a printed circuit board 3, a metal shielding cover 4, a reactor 5, a transformer 6, a copper nut 7, a protection circuit 8, a metal bottom plate 9, an aviation socket 10, a transformer body 11 and a high-voltage cable connector 12.

Detailed Description

Referring to fig. 1, the capacitive power supply adopting the high-voltage cable connector comprises a body 11, a primary copper nut 1, a high-voltage capacitor bank 2, a metal shielding case 4, a reactor 5, a transformer 6, a protection circuit 8, a metal bottom plate 9 and an aviation socket 10, wherein the primary copper nut 1, the high-voltage capacitor bank 2, the metal shielding case 4, the reactor 5, the primary transformer, the protection circuit 8 and the metal bottom plate 9 are arranged at the lower end of the body 11, the transformer 6 comprises a primary transformer and a secondary transformer, the primary copper nut 1, the high-voltage capacitor bank 2, the metal shielding case 4, the reactor 5, the primary transformer, the protection circuit 8 and the metal bottom plate 9 are sequentially connected to form a series circuit, the primary copper nut 1 is a high-voltage input terminal, the metal bottom plate 9 is connected to the ground to form a working loop, and the secondary transformer is connected.

Further, the metal shielding case 4 is a cylindrical structure, the high-voltage capacitor bank 2 is arranged inside the metal shielding case 4, the metal shielding case 4 is connected with the ground, a ground potential shielding layer is formed, a high-voltage electric field is sealed inside the metal shielding case 4, a full-insulation sealing structure is formed, and safety is guaranteed.

Further, the upper end of the body 11 is a conical structure, and can be assembled with the standard high-voltage cable connector 12 in a matching manner, so that the connection and the use are more convenient.

Further, the high-voltage capacitor group 2 is formed by serially connecting a plurality of capacitors, the capacitors are welded on the printed circuit board 3, copper foils are arranged on the printed circuit board 3, the capacitors are connected through the copper foils on the printed circuit board 3, the number of the capacitors can be adjusted according to the rated working voltage of a power supply, the number of the capacitors can be increased or decreased to adapt to different voltage levels, and the application range of the capacitor is enlarged.

Further, the primary copper nut 1, the high-voltage capacitor bank 2, the metal shielding case 4, the reactor 5 and the transformer 6 are poured and fixed through epoxy resin to form a whole, so that the structural stability of the transformer is improved, and the production and the manufacturing of equipment are facilitated.

Furthermore, a cavity is formed in the bottom of the transformer body 11, the protection circuit is arranged inside the cavity and fixedly connected with the copper nut 7 embedded inside the transformer body 11, and meanwhile, the copper nut 7 is connected with the primary side of the transformer, so that the overvoltage and overcurrent protection effect is achieved, and the normal work of the transformer cannot be influenced.

When the utility model is used, the conductor part of the high-voltage cable joint 12 is fastened with the primary copper nut 1 by screws to complete the electrical connection, and the tight fit between the high-voltage cable joint 12 and the conical structure is realized; and meanwhile, the external output equipment is accessed through the aviation socket.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an adopt capacitanc power of high tension cable joint which characterized in that: the transformer comprises a transformer body, a primary copper nut, a high-voltage capacitor bank, a metal shielding cover, a reactor, a transformer, a protection circuit, a metal bottom plate and an aviation socket, wherein the primary copper nut, the high-voltage capacitor bank, the metal shielding cover, the reactor, the primary transformer, the protection circuit and the metal bottom plate are arranged in the transformer body, the metal bottom plate and the aviation socket are arranged at the lower end of the transformer body, the transformer comprises a primary transformer and a secondary transformer, the primary transformer, the high-voltage capacitor bank, the metal shielding cover, the reactor, the primary transformer, the protection circuit and the metal bottom plate are sequentially connected and form a series circuit, the primary copper nut is a high-voltage input terminal.

2. A capacitive power supply using a high voltage cable connection as claimed in claim 1, wherein: the metal shielding cover is of a cylindrical structure, the high-voltage capacitor bank is arranged inside the metal shielding cover, and the metal shielding cover is connected with the ground and forms a shielding layer of ground potential.

3. A capacitive power supply using a high voltage cable connection as claimed in claim 1, wherein: the upper end of the device body is of a conical structure.

4. A capacitive power supply using a high voltage cable connection as claimed in claim 1, wherein: the high-voltage capacitor bank is formed by connecting a plurality of capacitors in series, and the number of the capacitors can be adjusted according to the rated working voltage of the power supply.

5. A capacitive power supply using a high voltage cable connection as claimed in claim 1, wherein: the primary copper nut, the high-voltage capacitor bank, the metal shielding cover, the reactor and the transformer are poured and fixed through epoxy resin to form a whole.