CN2422757Y - Electric connector - Google Patents

Abstract

The utility model relates to an electric connector which is formed by mutually sheathing a socket and a plug, wherein circular ring-shaped wire connecting terminals are arranged in the socket, and the plug is provided with electric contact sheets which are jointed with the wire connecting terminals of the socket; each circular ring-shaped wire connecting terminal in the socket is composed of an inner conducting wall, an outer conducting wall and an intermediate insulating layer; the electric contact sheets on the plug are isolated by insulating rings. When the plug is jointed with the socket, each electric contact sheet on the plug is jointed with each circular ring wall in the socket in order to avoid generating electric arcs. Each group of contacts is isolated by insulating ring sleeves, and the contact of zero potential is positioned between phase wires (a fire wire and an earth wire) so that the insulation shielding performance of the connector is further improved in order to ensure the safety of use.

Description

Electrical cnnector

The utility model relates to a kind of electric connector, particularly about a kind of electrical connection utensil of wireless electric heating vessel special use.

The electric connector of existing household electrical appliance is constantly improving and is improving aspect insulating properties and fail safe, normal conditions are that the bossing outer ring that will make binding post with the consuming device link adds safe guard ring, claim that it is a male contact, and will introduce the elastic contact blade that the former binding post of electricity makes indent, this elastic contact blade outer ring bag insulator, the insulator front end is provided with patchhole, and it is called as famale connector, male contact usually and consuming device make one.About wireless electric heating vessel, electric cup for example, structurally one is made in the male contact of electric connector and electric cup substrate, and said famale connector is then made and the join power supply base assembly of gas of electric cup substrate.As disclosed cordless electric appliance of CN1135270A and joint thereof, it provides a kind of cordless electric appliance and to be used to admit the base unit of this electrical equipment, the male contact that links to each other with this electrical equipment comprises first binding post and ring-like second binding post to dispose around first binding post of a column type, base unit is that famale connector comprises and uses the electric contact point that connects that engages with first and second binding posts, so that give this electrical equipment power supply.When the advantage of said structure was the butt joint of yin, yang joint, this electrical equipment can obtain power supply by it is placed in any turned position on the base unit.This is that connection is efficient and convenient to the user, but many defectives are arranged also on this structure, at first be that earth terminal exposes to the famale connector surface of insulating layer, on safety measure, be not inconsistent standard, earth point is exposed, can not think that it does not carry electric current, is safe to the user just, just in case in the famale connector collide in the contact, earth point is exposed just to cause serious threat to user security.The contact that is famale connector again contacts with the annulus summit of male contact, and it is that the contact contacts with circumference, that is to say the dotted line contact, and is well-known, and interelectrode dotted line contact very easily produces point discharge, and produces electric arc.Air barrier is then encouraged the generation of electric arc between the male contact electrode.Therefore there is defective in this structure on security performance.

The purpose of this utility model be at above-mentioned electrical connection device all fault of construction, and it is good to design a kind of insulating properties, safe and reliable cordless electrical appliance connector.

Design of the present utility model is, a kind of electrical cnnector by socket and the mutual fit of plug, the binding post that some annulars are arranged in the socket, the electric contact piece that engages with described annular connector is arranged on the plug, it is characterized in that the annular binding post in the socket is made up of the inwall of conduction, the outer wall and the middle insulation material layer of conduction, each electric contact piece on the plug is isolated by dead ring, when plug engages with socket, each annulus wall in each electric contact piece on the plug and the socket engages, and respectively organizes between electrical pickoff and isolate by insulating material.

With regard to socket, socket comprises some donuts composition binding posts of annular socket and Qi Nei, one axle center is the axle type binding post C of hollow, the one middle annulus concentric with quill shaft, annulus is a sandwich-like in the middle of this, and the insulating barrier that embedding folder and jack body insulating material fuse in the middle of it is isolated into the inner and outer wall of conduction and forms binding post B and A.

With regard to plug, plug comprises the outer ring set of an insulation, and an insulation central circular that is connected as a body with the plug bottom is established one group of elastic contact blade C in the central circular, and the central circular outer wall is established an elastic contact blade B, and outer ring set inwall is established an elastic contact blade A.

The size of the outer ring set of plug just in time is socketed in the annular socket, the central circular size of plug just in time inserts in the quill shaft type binding post C in the socket in the plug central circular, and A, B, three groups of contacts of C were isolated by the insulation ring set that two donuts form when plug engaged with socket.

The design's advantage is that the contact of each set of connections terminal all is the contact of some face, wall has been exempted from the generation of sparking or electric arc when charged engage contacts, each is organized between the contact and is all isolated by the insulation ring set, and the contact C of zero potential is in centre position positive and negative or phase line (fire, ground wire), when plug separates with socket, all phase lines in the plug hole (fire, ground wire) all are insulated material seal, and the connector insulating properties is further improved, and are safe and reliable to guarantee the user's.

Fig. 1 is the sectional view of the utility model structure.

Fig. 2 is a plug when engaging with socket, each position component and correlation.

The 26S Proteasome Structure and Function of embodiment is described below in conjunction with accompanying drawing.

The said electrical cnnector of the utility model is made up of the plug and the truncated cone-shaped socket of truncated cone-shaped, be used for electric heating vessel, for example socket on the electric cup and electric cup fuse, and plug is then made a pedestal, electric cup power supply, the seat that fixes for electric cup again both be.When they are pegged graft mutually, the binding post on the Plug base receiving socket, the diameter of socket is a bit larger tham the diameter of fittings body, and socket is that overcoat and plug are the mutual fit of interior cover.Its first half of Fig. 1 is the truncated cone-shaped socket.It is the separated position of plug and socket, establish 3 donuts in the socket (5), the 1st annulus is hollow metal small circle ring (2), be earth connection terminal C, the end of terminal C is the cone spigot surface, annulus in the middle of the 2nd ring and the 3rd ring are formed with the insulating interlayer (6) in the middle of it, insulating interlayer (6) is isolated into inside and outside metal level the inwall (1) and the outer wall (4) of conduction, become the binding post B and the A of phase line respectively, the a little higher than inside and outside wall conductive layer of insulating interlayer is with the absolute isolated insulation of outer conducting layer in guaranteeing.Inwall (1) links to each other with electric heating element by B brace (3), and outer wall (4) links to each other with electric heating element by A brace (19).Socket (5) usually and the bottom of electric cup fuse the some at the bottom of socket and control assembly become glass.The Lower Half of Fig. 1 is the plug body (8) of truncated cone-shaped, one plug centering ring is the insulating material ring (14) that fuses with plug bottom (12), dead ring (14) is established grounding wafer C (16) in the inwall chamber, dead ring (14) is established contact A and contact B in the outer wall chamber, dead ring (14) end is expanded into guide collar (18), and guide collar has the horn opening for receiving socket hollow metal annulus (2).It aims at fit mutually with the cone of binding post C end on the socket.Between guide collar (18) and plug body (8), have one slidably to locate cage ring (7) in the cavity, have in the cage ring (7) for the inner groovy that embeds compression spring (10), shore mutually with plug bottom (12) the spring lower end, slides up and down in cavity between plug body (8) and the plug insulating ring (14) to support location cage ring (7).Plug bottom (12) is provided with the bonding conductor (11) that links to each other with electric contact point A, bonding conductor (13) that links to each other with electric contact point C and the bonding conductor (15) that links to each other with electric contact point B, the plug conductors exposed parts is tight with the insulating lid lid, as when being electric cup, plug makes the pedestal of electric cup, and will connect electric conductor and power line is enclosed in the pin insulator.As shown in Figure 1, when promptly plug separates with socket,, seal close plug annulus hole guaranteeing that each electrified body does not expose in the plug, and can stop foreign object to enter because the effect of spring makes cage ring (7) be pushed top plug cavity end, safe in utilization to guarantee.The length of contact C is greater than the length of phase line contact A and B during design, and when engaging with socket with the assurance plug, grounding wafer C contacts with the quill shaft heart wall of socket earlier, plays the Isolated Shield effect.

When plug engages with socket, shown in 2, just electric cup is full of water and is placed on when heating on the pedestal, because the weight of liquid is the compression of the compression spring (10) on the plug (being pedestal), cage ring (7) slides on the bottom (12), because contact C length is greater than contact A and B, the quill shaft of socket engages with grounding wafer C at first, plays shielding action earlier, is that phase line contact A contacts with the 3rd annulus wall then, phase line contact B contacts energized with the 2nd annulus wall.When electric cup seethed with excitement, controller was cut off the electricity supply automatically, and the user picks up electric cup from pedestal, promptly A and B contact and the 3rd, 2 ring walls disengage before this, be that grounding wafer C separates with the hollow axle head of shielding at last, to break away from power supply earlier, the order that breaks away from shielding is again carried out.To guarantee electrical equipment ground connection, at first realize and last the disconnection.

When plug engages with socket, just electric cup is placed on when heating on the pedestal in charged source, owing to adopt the design of the binding post of central rods and donut, make electric cup directly realize fast being electrically connected in the location in the orientation at any angle with pedestal, the contact of contact and annulus wall be in office, and where the parallactic angle degree inserts can both realize that the tight of a face contacts, isolated insulation ring between each contact of while, add the ground connection shielding between the phase line electrode, to produce electric arc, the sparking possibility reduce to minimum level, the utility model has significant effect aspect fail safe.

Claims (7)

1, a kind of electrical cnnector by socket and the mutual fit of plug, the binding post that annular is arranged in the socket, the electric contact piece that engages with each binding post of described socket is arranged on the plug, it is characterized in that the annular binding post in the socket is made up of the inwall of conduction, the outer wall and the middle insulation material layer of conduction, each electric contact piece on the plug is isolated by dead ring, when plug engages with socket, each annulus wall in each electric contact piece on the plug and the socket engages, and respectively organizes between electrical pickoff and isolate by insulating material.

2, electrical cnnector as claimed in claim 1, it is characterized in that socket forms binding post by some donuts, one axle center is the axle shape binding post C (2) of hollow, the one middle annulus concentric with quill shaft, the insulating barrier (6) that embedding folder and jack body insulating material fuse in the middle of it are isolated into the inwall (1) of conduction and binding post B and the A that outer wall (4) is formed.

3, electrical cnnector as claimed in claim 1, it is characterized in that plug comprises the outer ring set (8) of an insulation, the one insulation central circular (14) that links to each other one with plug bottom (12), establish one group of elastic contact blade C (16) in the central circular (14), the central circular outer wall is established an elastic contact blade B (17), and outer ring set inwall is established an elastic contact blade A (9).

4, as claim 1 or 3 described electrical cnnectors, it is characterized in that plug central insulation ring (14) end is expanded into guide collar (18), guide collar is a horn-type opening.

5, as claim 1 or 3 described electrical cnnectors, it is characterized in that establishing one in the cavity between guide collar (18) and plug (8) slidably locatees cage ring (7), have in the cage ring (7) for the inner groovy that embeds compression spring (10).

6,, it is characterized in that the length of the length of header contact C (16) greater than phase line contact B (17) and A (9) as claim 1 or 3 described electrical cnnectors.

7, electrical cnnector as claimed in claim 1 or 2 is characterized in that a little higher than inside and outside wall conductive layer of insulating barrier (6) (1,4) of annulus in the socket.

Images