CN206516575U

CN206516575U - HVDC relay arc extinguishing structure

Info

Publication number: CN206516575U
Application number: CN201621330699.9U
Authority: CN
Inventors: 壇博治; 林茂豪; 徐军斌
Original assignee: Churod Electronics Co Ltd
Current assignee: Churod Electronics Co Ltd
Priority date: 2016-12-02
Filing date: 2016-12-02
Publication date: 2017-09-22
Anticipated expiration: 2026-12-02

Abstract

The utility model discloses a kind of HVDC relay arc extinguishing structure, including magnet board mount and a pair of magnet, the magnet is respectively positioned at the both sides of the approximately the same plane where the central shaft of two face terminals of relay, and the relative both sides opposite polarity of magnet described in two, so that face terminals described in two each produce the arc extinguishing a being located remotely from each other power；The magnet board mount is wrapped in the periphery of magnet described in two；The magnet board mount has magnetic conduction sheet close to the end of the magnet, and the magnetic conduction sheet is covered in the end face of the magnet.The arc extinguishing power of the utility model HVDC relay arc extinguishing structure is big, and arc extinguishing is quick, and arc quenching effect is good.

Description

HVDC relay arc extinguishing structure

Technical field

The utility model is related to a kind of relay, more particularly to a kind of HVDC relay arc extinguishing structure.

Background technology

Relay be it is a kind of gone to control with less electric current, relatively low voltage larger electric current, higher voltage it is automatic Switch.It realizes that this switching function is by the electromagnet for being arranged inside, by being passed through small electric to magnet spool Stream so that electromagnet produce magnetic field, using the generation or disappearance in magnetic field adhesive or unclamp armature, and then drive electroconductive elastic sheet it Between adhesive or disconnection, realize conducting to big current loop.However, during high-voltage great-current is controlled, when control relay When device disconnects the circuit of high current, two face terminals can disconnection generation electric arc in a flash, these electric arcs both make high current Also there is conducting in circuit, and can produce influence to the element inside relay again, relay even be burnt out when serious, therefore need Nip in the bud electric arc, but in the prior art, most of relays are all without arc extinguishing structure, even if there is arc extinguishing structure, it goes out Arc effect is also not good enough.

Utility model content

The purpose of this utility model is to provide a kind of arc quenching effect good HVDC relay arc extinguishing structure.

To achieve these goals, the utility model, which provides the HVDC relay arc extinguishing structure, includes magnet plate branch Frame and a pair of magnet, magnet described in two is respectively positioned at two of the approximately the same plane where the central shaft of two face terminals of relay Side, and the relative both sides opposite polarity of magnet described in two, are located remotely from each other so that face terminals described in two each produce one Arc extinguishing power；The magnet board mount is wrapped in the periphery of magnet described in two；The magnet board mount is close to the end of the magnet With magnetic conduction sheet, the magnetic conduction sheet is covered in the end face of the magnet.

Compared with prior art, by setting described in the both sides of the approximately the same plane where the central shaft of two face terminals Magnet, so that two face terminals produce arc extinguishing power, when between the moment of face terminals open circuit described in two, face terminals described in two When producing electric arc, electric arc is broken using arc extinguishing power, so as to realize arc extinguishing；And by close described in the magnet board mount The end of magnet is provided with magnetic conduction sheet, and the magnetic conduction sheet is covered in the end face of the magnet, so as to greatly increase magnetic conduction Area, and then increase flux, strengthen the size of arc extinguishing power, realize fast arc extinction, effectively improve arc quenching effect.

It is preferred that the magnet board mount is divided into two sections being separated from each other, the two ends often saved include leading portion, bending segment and after Section, the leading portion cladding is placed on the outside of the magnet, and the bending segment is the magnetic conduction sheet, the bending segment and the leading portion And the back segment is vertically connected, the bending segment is coated on outside the end face of the magnet, the back segment be coated on HVDC after Outside the ceramic shell of electrical equipment.

Specifically, the end of the leading portion is provided with holding section, and the holding section engages positioning with the magnet.

It is preferred that the HVDC relay includes a shell, the shell includes ceramic shell, upper casing and lower casing, The lower casing is tightly connected with the upper casing；The upper casing offers opening, the ceramic shell be arranged on the upper casing and Hermetically cover the opening；Magnet described in the magnet board mount and two is arranged at outside the ceramic shell.

Specifically, the shell also includes separator, and the shell is divided into epicoele and cavity of resorption by the separator, described negative Terminal is carried to be installed on the ceramic shell and stretch into the upper intracavitary.The separator is set to make the epicoele and described Cavity of resorption is completely isolated, so as to preferably isolate electric arc, extends the service life of relay.

Brief description of the drawings

Fig. 1 is that the arc extinguishing structure of the utility model HVDC relay is installed on the structure chart on relay.

Fig. 2 is the exploded view of the shell of the utility model HVDC relay.

Fig. 3 is the top view of the arc extinguishing structure of the utility model HVDC relay.

Schematic diagram when Fig. 4 is the arc extinguishing structure arc extinguishing of the utility model HVDC relay.

Embodiment

To describe technology contents of the present utility model, construction feature, the effect realized in detail, below in conjunction with embodiment And coordinate accompanying drawing to be explained in detail.

As shown in Figures 1 and 2, the utility model HVDC relay 100 includes shell 1 and a pair of face terminals 2；Institute Shell 1 is stated in sealing structure, to be vacuumized to the inside of shell 1 and to be filled with inert gas.Face terminals 2 are set described in two The shell 1 is stretched out on the shell 1 and upper end, lower end is stretched into the shell 1.

Refer to Fig. 1 and Fig. 2, the shell 1 include ceramic shell 11 and, upper casing 12, lower casing 13 and separator 14, it is described Lower casing 13 is tightly connected with the upper casing 12；The upper casing 12 offers opening 121, and the ceramic shell 11 is arranged on described The opening 121 is covered on shell 12 and hermetically, so as to form the epicoele in the ceramic shell 11 and under described Cavity of resorption in shell 13.The shell 1 is divided into epicoele and cavity of resorption by the separator 14, so as to so that the electric arc that relay is produced Separated with the coil of relay, it is to avoid electric arc burns out coil.The separator 14 is located at the upper intracavitary and is covered in described open Mouth 121, sets the separator 14 that the epicoele and the cavity of resorption can be made completely isolated, so as to preferably isolate electric arc, prolongs The service life of long relay.

Fig. 1, Fig. 3 and Fig. 4 are referred to, the HVDC relay 100 also includes arc extinguishing structure 10, the arc extinguishing structure 10 are arranged at the surrounding of the lower end of face terminals 2 and around the periphery of the ceramic shell 11, and the arc extinguishing structure 10 is wrapped Magnet board mount 101 and a pair of magnet 102 are included, magnet 102 described in two is located at the central shaft institute of face terminals 2 described in two respectively Approximately the same plane both sides, and the relative both sides opposite polarity of magnet 102 described in two, according to left hand method side so that two The face terminals 2 can each produce an arc extinguishing power F being located remotely from each other；The magnet board mount 101 is wrapped in magnet described in two 102 periphery and around the periphery of the ceramic shell 11.End face of the magnet board mount 101 close to the magnet 102 Place has magnetic conduction sheet, and the magnetic conduction sheet is covered in the end face of the magnet 102.Specifically, 101 points of the magnet board mount is Two sections being separated from each other, often save and about take the shape of the letter U, and the two ends often saved include leading portion 101a, bending segment 101b and back segment 101c, described Leading portion 101a end is provided with holding section 101d, and for engaging positioning with the magnet 102, the leading portion 101a claddings are placed on The outside of the magnet 102, the bending segment 101b is the magnetic conduction sheet, the bending segment 101b and the leading portion 101a and The back segment 101c is vertically connected, and the bending segment 101b is coated on outside the end face of the magnet 102, the back segment 101c claddings In outside the ceramic shell 11.

Compared with prior art, by setting institute in the both sides of the approximately the same plane where the central shaft of two face terminals 2 Magnet 102 is stated, so that two face terminals 2 produce arc extinguishing power F, when the moment of the open circuit of face terminals 2 described in two, is loaded described in two When producing electric arc between terminal 2, electric arc is broken using arc extinguishing power F, so as to realize arc extinguishing；And by the magnet plate branch Frame 101 is provided with magnetic conduction sheet close to the end of the magnet 102, and the magnetic conduction sheet is covered in the end face of the magnet 102, So as to greatly increase magnetic conductive area, and then increase flux, strengthen the size of arc extinguishing power, realize fast arc extinction, effectively improve and go out Arc effect.

Above disclosed is only preferred embodiments of the present utility model, can not limit the utility model with this certainly Interest field, therefore equivalent variations made according to present utility model application the scope of the claims still fall within the utility model and are covered Scope.

Claims

1. a kind of HVDC relay arc extinguishing structure, it is characterised in that：Including magnet board mount and a pair of magnet, magnetic described in two Iron is respectively positioned at the both sides of the approximately the same plane where the central shaft of two face terminals of relay, and magnet described in two is relative Both sides opposite polarity so that face terminals described in two each produce the arc extinguishing a being located remotely from each other power；The magnet board mount Magnet plate is wrapped in the periphery of magnet described in two；The magnet board mount has magnetic conduction sheet close to the end of the magnet, described Magnetic conduction sheet is covered in the end face of the magnet.

2. HVDC relay arc extinguishing structure as claimed in claim 1, it is characterised in that：The magnet board mount is divided into phase Two sections mutually separated, the two ends often saved include leading portion, bending segment and back segment, and the leading portion cladding is placed on the outside of the magnet, The bending segment is the magnetic conduction sheet, the bending segment and the leading portion and the back segment is vertical is connected, and the bending segment is coated In outside the end face of the magnet, the back segment is coated on outside the ceramic shell of HVDC relay.

3. HVDC relay arc extinguishing structure as claimed in claim 2, it is characterised in that：The end of the leading portion is provided with card Conjunction portion, the holding section engages positioning with the magnet.

4. HVDC relay arc extinguishing structure as claimed in claim 1, it is characterised in that：The HVDC relay bag A shell is included, the shell includes ceramic shell, upper casing and lower casing, and the lower casing is tightly connected with the upper casing；The upper casing Opening is offered, the ceramic shell is arranged on the upper casing and hermetically covers the opening；The magnet board mount and Magnet described in two is arranged at outside the ceramic shell.

5. HVDC relay arc extinguishing structure as claimed in claim 4, it is characterised in that：The shell also includes isolation The shell is divided into epicoele and cavity of resorption by part, the separator, and the face terminals are installed on the ceramic shell and stretched into The upper intracavitary.