CN1396683A

CN1396683A - Electric connector for cordless electric appliance

Info

Publication number: CN1396683A
Application number: CN 02136488
Authority: CN
Inventors: 柯赐龙
Original assignee: Individual
Current assignee: Ke Cilong
Priority date: 2002-08-12
Filing date: 2002-08-12
Publication date: 2003-02-12
Anticipated expiration: 2022-08-12
Also published as: AU2003255085A1; CN1196236C; EP1536528A1; DE60331193D1; EP1536528B1; WO2004015823A1; EP1536528A4

Abstract

An electric connector for the cordless electric appliance is composed of a plug and a socket, which are matched and can rotate relatively. The socket has a central jack and a concentrical ring slot, which contains the feed terminals. The plug has corresponding central terminal and peripheral terminals plut up. It features that the said socket contains also at least a feed contact connected to a live or zero line, and at least one contact separating-touching mechanism which can ensure that the feed and receiving contacts are normally separated, and when a plug is inserted, they are in touch state, resulting in high safety.

Description

A kind of electric connector that is used for cordless electric appliance

Technical field

The present invention relates to a kind of electric connector, particularly a kind of rotary electric connector that is used for as separate type cordless electric appliances such as wireless electric kettle, wireless frying pan, cordless electric irons.

Background technology

In separate type electrical equipment such as existing wireless electric kettle, wireless frying pan, cordless electric iron, generally be provided with a plug body in the body bottom of electrical equipment, and a power supply pedestal that matches with it is provided with a socket, when being shelved on the electrical equipment body on the pedestal, plug body and socket plug together mutually, thereby realize the power supply to the electrical equipment body.Common, the binding post that has the right cylinder shape on the described plug body, because the restriction of its structure, described plug body, socket lay respectively at the peripheral position of electrical equipment body, power supply pedestal, the relatively center of gravity of electrical equipment body also promptly far away still patches effect from outward appearance and all therefore is affected.For this reason, publication number be CN1135270A's " cordless electric appliance and joint thereof " a kind of rotary electric connector is provided, it comprises a male contact (being fittings body) and a cloudy receptacle terminal that engages (being socket), described male contact comprises a center conductive post binding post, with a ring connection terminal concentric with the post binding post, described cloudy receptacle terminal has the perforate on its front end, in order to admitting the ring connection terminal of newel binding post and described male contact, receptacle terminal has and is used for the electric contact separately that engages with the described binding post of described male contact.This design, make plug body can be arranged on electrical equipment body bottom center, the center of gravity of contiguous electrical equipment body or with its on same plumb line, and the pedestal of can powering relatively in the horizontal direction rotates freely and does not influence the electrical connection effect, thereby make the electrical equipment body on the power supply pedestal, shelve more steadily, also make the electrical connection better effects if.Yet, this design is because socket is in power supply state always, the contact that promptly is positioned at heart hole wherein or cannelure is in electriferous state all the time, therefore, for preventing the generation of electric shock accidents, simultaneously also in order to guarantee the effect of pegging graft, the diameter of its centre bore, the width of cannelure must be very little, generally be not more than 3mm, this just make the user in use must be carefully with plug body and socket to directly, thereby influenced user's ease of use, on the other hand, this also makes the size of power supply pedestal be restricted, and when needing the bigger connector of size, this design is difficult to adopt when the power of electrical equipment is big.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of novel electric connector that is used for cordless electric appliance at above-mentioned prior art present situation, and the contact that patches that engages with plug body in its socket remains off-position when plug body is not inserted.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: the electric connector that is used for cordless electric appliance, include and to peg graft mutually and can counterrotating plug body and socket, the socket central part of end face thereon has a jack, and have a cannelure concentric with this jack, in jack and cannelure, be respectively arranged with and award electric connecting terminals, and plug body is provided with accordingly and is subjected to electrfic centre binding post and peripheral binding post, engage with the center hub of socket and the electric connecting terminals of awarding in the cannelure respectively, it is characterized in that, in described socket, also be provided with:

At least one contact of powering, this power supply contact links to each other with the live wire or the zero line of power supply;

And at least one contact deciliter mechanism, when plug body is not inserted socket, described power supply contact award electric connecting terminals between the holding contact corresponding with it often opened, and when plug body was inserted socket, this contact deciliter mechanism made this normally opened contact that closure is switched under the effect of plug body.

The power supply contact of described socket can be one, link to each other with the live wire or the zero line of power supply, award electric connecting terminals for other two of two supply lines of other of power supply and socket and link to each other, described contact deciliter mechanism promptly acts between the binding post of this power supply contact Power Block corresponding with it;

The power supply contact of described socket can be two, link to each other with zero line with the live wire of power supply respectively, the earth connection of power supply links to each other with the corresponding electric connecting terminals of awarding of socket, and described contact deciliter mechanism acts between the binding post of one of them power supply contact Power Block corresponding with it at least;

The power supply contact of described socket can be three, link to each other with live wire, zero line and the earth connection of power supply respectively, and to award electric connecting terminals corresponding with three of socket respectively, and described contact deciliter mechanism acts on awarding between the electric connecting terminals of one of them power supply contact Power Block corresponding with it at least, and this power supply contact that is applied is to link to each other with the live wire or the zero line of power supply;

Binding post in the described plug body and the binding post in the socket can be column, also can be contact, usually, the electrfic centre binding post that is subjected in described plug body is an inserting column, its peripheral binding post is inserting column or contact, and the electric connecting terminals of awarding of socket is looked different concrete situations for connecing post or contact accordingly;

When awarding electric contact point and earth connection in the power supply link to each other in the center hub of described socket, described contact deciliter mechanism can award that electric contact point links to each other with this and be driver part with it, at this moment, the electric contact point of awarding that is positioned at socket annular concentric groove has one at least for described normally opened contact; Such design, be when guaranteeing that plug body and socket plug, this is awarded among the electric contact point socket corresponding with it and electrically contacts at first between heart binding post, and when plug body pulls away socket, this is awarded among the electric contact point socket corresponding with it, and last electricity separates between heart binding post, thereby guarantees Electrical Safety;

Described contact deciliter mechanism can be made of with the power supply contact that is positioned at same horizontal direction setting under it the insulation push rod of a horizontal direction setting, the root that the heart connects post among described insulation push rod middle part and the socket links to each other, its end has a part bending down, the side of its this kink takes the form of inclined plane, and with the power supply contact corresponding parallel inclined-plane contact, the power supply contact is provided with and moving contact, with be arranged on socket annular concentric groove in to award under the electric contact point fixed contact of distolateral wall relative, when the insulation push rod moves down, promptly pass through ramp effect, the power supply contact is moved towards fixed contact, contact with fixed contact until moving contact.

Described contact deciliter mechanism also can be made of the vertical movable contact spring that a cross section is the collets of inverted ladder type and is positioned at its side, the root that the heart connects post among described collets upper end and the socket links to each other, its lower end is supported by a back-moving spring, described vertical movable contact spring is provided with the moving contact that joins with power firestreak or zero line, with be arranged on socket annular concentric groove in to award under the electric contact point fixed contact of distolateral wall relative, when the inverted ladder type collets move down, the vertical movable contact spring that is positioned at its side outwards tilts towards fixed contact, contacts with fixed contact until moving contact;

Described contact deciliter mechanism can also include the insulation push rod that horizontal direction that root that the heart among a middle part and the socket connects post links to each other is provided with, its two ends are provided with the moving contact that links to each other with power firestreak or zero line, end bends under described moving contact under the electric contact point and corresponding being arranged on awarded in the socket annular concentric groove, make the fixed contact that is arranged on this kink just in time relative with described moving contact, when the insulation push rod moved down, moving contact and then moved down with fixed contact and contacts;

Described contact deciliter mechanism can also be made of an insulation lever and shaft-like movable contact spring, wherein an end of movable contact spring is fixed on the housing of socket, be provided with moving contact on the other end, end bends on described moving contact under the electric contact point and corresponding being arranged on awarded in the socket annular concentric groove, make the fixed contact that is arranged on this kink just in time relative with described moving contact, the root that the heart among an end and the socket of lever of wherein insulating connects post links to each other, the other end is positioned under the moving contact end of movable contact spring, when the insulation push rod moves down, the insulation lever rotates, the moving contact end of movable contact spring is lifted, contact with fixed contact until moving contact;

Described contact deciliter mechanism can also be made of an insulation slide block and shaft-like movable contact spring, wherein an end of movable contact spring is fixed on the housing of socket, be provided with moving contact on the other end, its middle part is by point supporting, the end bending makes the fixed contact that is arranged on this kink just in time relative with described moving contact on described moving contact under the electric contact point and corresponding being arranged on awarded in the socket annular concentric groove; The insulation slide block penetratingly is provided with socket annular concentric trench bottom and can makes slide relative up and down, its lower end then is against on the position of contiguous its stiff end of described shaft-like movable contact spring, when the insulation slide block moves down, press down shaft-like movable contact spring, by leverage, its moving contact end is lifted, contact with fixed contact until moving contact.

The annular concentric groove of described socket can have one, also can have two;

When socket has only an annular concentric groove, on the madial wall of this cannelure and lateral wall, be respectively arranged with annular and award electric contact point, and the electric peripheral binding post that is subjected to of corresponding plug body also is contact, and the cannelure madial wall of respective socket body be subjected to electric contact point within it side have the contact of protrusion, and the electric contact point that is subjected to of the ring slot outside wall of respective socket body has the contact of protrusion in its outside;

When socket has two annular concentric grooves, in each cannelure, only be provided with one respectively and award electric contact point, awarding on the sidewall that electric contact point can be arranged on cannelure in the cannelure, the corresponding electric peripheral binding post that is subjected to should be a contact on the plug body at this moment, and has the contact of protrusion in a side relative with this cannelure sidewall; Award the bottom that electric contact point also can be arranged on cannelure in the cannelure, the corresponding electric peripheral binding post that is subjected to should be an inserting column on this moment plug body;

When awarding live wire in electric contact point and the power supply or zero line and link to each other in the center hub of described socket, this is awarded electric contact point and is one of described normally opened contact, and the electric contact point of awarding that is arranged in socket annular concentric groove then has one directly to link to each other with the earth connection of power supply;

At this moment, described contact deciliter mechanism also can be made of the collets of a wedge shape and the moving contact seat that is positioned on its inclined-plane, the inboard of wedge shape collets is supported by a back-moving spring, make it have outwards traversing trend, described moving contact seat is provided with the moving contact that joins with power firestreak or zero line, with be arranged on socket in corresponding to award the fixed contact of holding under the electric contact point relative, when the wedge shape collets inside when traversing, the moving contact seat that is positioned on its inclined-plane moves up, and contacts with fixed contact until moving contact;

In order to make plug body accurate positioning when inserting socket, can described plug body be provided with the convex annular wall in the cannelure that can insert described socket.

The another kind of technical scheme that changes also can solve the problems of the technologies described above, the electric connector that promptly is used for cordless electric appliance includes can peg graft and can counterrotating plug body and socket mutually, socket end face thereon has at least two concentric cannelures, and in cannelure, be respectively arranged with and award electric connecting terminals, and plug body is provided with accordingly and is subjected to electric connecting terminals, engage with the electric connecting terminals of awarding in the socket cannelure respectively, it is characterized in that, in described socket, also be provided with:

Compared with prior art, the present invention is provided with awarding electricity and powering two cover contact groups of mutual correspondence at socket in a creative way, and when plug body is not inserted socket, at least an award electric contact point corresponding with it that links to each other with power firestreak or zero line in the power supply contact group remains normally open, make that visible on the socket surface to award electric contact point not charged all the time, not only guaranteed safe handling, also make the recess width on socket surface, the degree of depth is unrestricted, make plug body more convenient when plugging with socket, even the oblique one of also pegging graft exactly of inserting mutually, simultaneously, also make and design, make, use the large power, electrically connector to become possibility, greatly widen its application, support electric kettle, product diversification such as frying pan development.

Description of drawings

Fig. 1 is the structure cross-sectional schematic of the embodiment of the invention one;

Structure cross-sectional schematic when Fig. 2 is in the grafting one for embodiment among Fig. 1;

Fig. 3 is applied to the structural representation of a wireless electric kettle for the installation of embodiment among Fig. 1;

Fig. 4 is the structure cross-sectional schematic of the embodiment of the invention two;

Structure cross-sectional schematic when Fig. 5 is in the grafting one for embodiment among Fig. 4;

Fig. 6 is the structure cross-sectional schematic of the embodiment of the invention three;

Structure cross-sectional schematic when Fig. 7 is in the grafting one for embodiment among Fig. 6;

Fig. 8 is the structure cross-sectional schematic of the embodiment of the invention four;

Structure cross-sectional schematic when Fig. 9 is in the grafting one for embodiment among Fig. 8;

Figure 10 is that the A of Fig. 8 is to partial schematic diagram;

Figure 11 is the structure cross-sectional schematic of the embodiment of the invention five;

Structure cross-sectional schematic when Figure 12 is in the grafting one for embodiment among Figure 11;

Figure 13 is that the B of Figure 11 is to partial schematic diagram;

Figure 14 is the structure cross-sectional schematic of the embodiment of the invention six;

Structure cross-sectional schematic when Figure 15 is in the grafting one for embodiment among Figure 14;

Figure 16 is the structure cross-sectional schematic of the embodiment of the invention seven;

Structure cross-sectional schematic when Figure 17 is in the grafting one for embodiment among Figure 16.

Embodiment

Below in conjunction with accompanying drawing embodiment invention is described in further detail.

As shown in Figure 1 and Figure 2, be embodiments of the invention one, include and to peg graft mutually and can counterrotating plug body 100 and socket 200;

Socket 200 central part of end face thereon has a jack, and have a cannelure concentric with this jack, the center that is provided with in jack is awarded electricity and is connect post 202, on the lateral wall of cannelure and madial wall, be respectively arranged with annular and award electric contact point 201,203, the downward elongated end inboard of wherein awarding electric contact point 201 is provided with fixed contact 201a, and the downward elongated end arranged outside of awarding electric contact point 203 has fixed contact 203a;

Be provided with three power supply contacts 301,302,303 that are the movable contact spring form accordingly in the bottom of socket 200, respectively with award electric contact point 201, award that electricity connects post 202, to award electric contact point 203 corresponding; The contact 302 of wherein powering links to each other with the earth connection of power supply, and all the time with award electricity and connect post 202 and offset; 301,303 of contacts of power supply link to each other with live wire, the zero line of power line respectively, and a side of power supply contact 301 is provided with moving contact 301a, and is relative with the fixed contact 201a that awards electric contact point 201; One side of power supply contact 303 is provided with moving contact 303a, and is relative with the fixed contact 203a that awards electric contact point 203;

Insulation push rod 304 is provided with in horizontal direction, the root that the heart connects post 202 among its middle part and the socket links to each other, its two ends have a part bending down, and the side of its this kink takes the form of inclined plane, and its latter half contacts with the corresponding parallel inclined-plane of power supply contact 301,303; So promptly constitute contact deciliter mechanism;

Plug body 100 is provided with the convex annular wall 104 in the cannelure that can insert described socket 200, and heart position is provided with one and is subjected to electric mortiser post 102 therein, to connect post 202 corresponding with the electricity of awarding of socket, its both sides are respectively arranged with two and are subjected to electric contact point 101,103, and be provided with contact 101a, 103a at its lower end side, respectively with socket to award electric contact point 201,203 corresponding;

When plug body 100 and socket 200 plug, referring to Fig. 2, the electric contact point 101,103 that is subjected to of plug body contacts with the electric contact point 201,203 of awarding of socket by its contact 101a, 103a respectively, and connecing post 202 with the center of socket, the center inserting column 102 of plug body presses down, so insulation push rod 304 moves down thereupon, by the ramp effect between its kink and the power supply contact 301,303, power supply contact 301,303 is moved towards awarding electric contact point 201,203 respectively, contact with fixed contact 201a, 203a respectively until moving contact 301a, 303a.

In use, referring to example shown in Figure 3, plug body 100 is fixed on the bottom center position of electric kettle, socket 200 is fixed on the central part of Power Block, like this, when electric kettle is shelved on the Power Block, plug body 100 promptly with socket 200 grafting one, thereby make electric kettle get electric heating.

In the foregoing description, insulation push rod 304 acts on two power supply contacts 301,303 simultaneously by its two ends, and in actual applications, can be only to act on one of them power supply contact by the one end, another power supply contact then directly links to each other with corresponding power line.

As Fig. 4, shown in Figure 5, be embodiments of the invention two, socket 210 central part of end face thereon has a jack, and have two cannelures concentric with this jack, the center that is provided with in jack is awarded electricity and is connect post 212, the lateral wall of outer annular groove is provided with annular and awards electric contact point 211, be provided with annular in the bottom of interior cannelure and award electric contact point 213, the downward elongated end inboard of wherein awarding electric contact point 211 is provided with fixed contact 211a, and the downward elongated end inboard of awarding electric contact point 213 is provided with fixed contact 213a;

Be provided with three power supply contacts 311,312,313 that are the movable contact spring form accordingly in the bottom of socket 200, respectively with award electric contact point 211, award that electricity connects post 212, to award electric contact point 213 corresponding; The contact 312 of wherein powering links to each other with the earth connection of power supply, and all the time with award electricity and connect post 212 and offset; Power supply contact 311,313 is vertical setting, link to each other with live wire, the zero line of power line respectively, and a side of power supply contact 311 is provided with moving contact 311a, and is relative with the fixed contact 211a that awards electric contact point 211; One side of power supply contact 313 is provided with moving contact 313a, and is relative with the fixed contact 213a that awards electric contact point 213;

The collets 314 that the cross section is inverted ladder type are arranged on to be awarded electricity and connects under the post 212, and its lower end is by a back-moving spring 315 supportings, and described power supply contact 311,313 promptly leans against its both sides, and the root that the heart connects post 212 among described collets 314 upper ends and the socket links to each other;

Plug body 110 is provided with the convex annular wall 114 in the cannelure that can insert described socket 210, and heart position is provided with one and is subjected to electric mortiser post 112 therein, to connect post 212 corresponding with the electricity of awarding of socket, its both sides are respectively arranged with and are subjected to electric contact point 111 and are subjected to electric mortiser post 113, respectively with socket to award electric contact point 211,213 corresponding, wherein be subjected to the lower end side of electric contact point 111 to be provided with contact 111a;

When plug body 110 and socket 210 plug, referring to Fig. 5, the electric contact point 111 that is subjected to of plug body contacts with the electric contact point 211 of awarding of socket by its contact 111a, the electric mortiser post 113 that is subjected to of plug body contacts with the electric contact point 213 of awarding of socket, and connecing post 212 with the center of socket, the center inserting column 112 of plug body presses down, so collets 314 move down thereupon, the vertical power supply contact 311,313 that will be positioned at its side moves towards awarding electric contact point 211,213 respectively, contacts with fixed

contact

211a, 213a respectively until moving

contact

311a, 313a;

In the foregoing description, collets 314 act on two power supply contacts 311,313 simultaneously by its both sides, and in actual applications, can be only to act on one of them power supply contact by the one side, another power supply contact then directly links to each other with corresponding power line.

As Fig. 6, shown in Figure 7, be embodiments of the invention three, socket 220 central part of end face thereon has a jack, and have two cannelures concentric with this jack, the center that is provided with in jack is awarded electricity and is connect post 222, be respectively arranged with annular in the bottom of two cannelures and award electric contact point 221 and 223, and they respectively have one to extend downwards and the end of bending, and on kink, be respectively arranged with fixed contact 221a and 223a;

Be provided with three power supply contacts 321,322,323 that are the movable contact spring form accordingly in the bottom of socket 200, respectively with award electric contact point 221, award that electricity connects post 222, to award electric contact point 223 corresponding; The contact 322 of wherein powering links to each other with the earth connection of power supply, and all the time with award electricity and connect post 222 and offset; Power supply contact 321,323 links to each other with live wire, the zero line of power line respectively, be positioned on the fixed contact 221a and 223a that awards electric contact point, and the downside of power supply contact 321,323 is respectively arranged with moving contact 321a and 323a, and with relative with fixed contact 221a and 223a respectively;

Insulation push rod 324 is provided with in horizontal direction, and the root that the heart connects post 222 among its middle part and the socket links to each other, and its two ends link to each other with the contact 321,323 of powering respectively;

Plug body 120 is provided with the convex annular wall 124 in the cannelure that can insert described socket 220, and heart position is provided with one and is subjected to electric mortiser post 122 therein, to connect post 222 corresponding with the electricity of awarding of socket, its both sides are respectively arranged with and are subjected to electric mortiser post 121 and are subjected to electric mortiser post 123, respectively with socket to award electric contact point 221,223 corresponding;

When plug body 120 and socket 220 plug, referring to Fig. 7, being subjected to electric mortiser post 121 and contacted with the electric contact point 221,223 of awarding of socket respectively by electric mortiser post 123 of plug body, and connecing post 222 with the center of socket, the center inserting column 122 of plug body presses down, so insulation push rod 324 moves down thereupon, the vertical power supply contact 321,323 that will be positioned at its two ends moves towards awarding electric fixed contact 221a, 223a respectively, contacts with fixed contact 221a, 223a respectively until moving contact 321a, 323a;

In the foregoing description, insulation push rod 324 acts on two power supply contacts 321,323 simultaneously by its two ends, and in actual applications, can be only to act on one of them power supply contact by the one end, another power supply contact then directly links to each other with corresponding power line.

As Fig. 8, Fig. 9, shown in Figure 10, be embodiments of the invention four, socket 230 central part of end face thereon has a jack, and have a cannelure concentric with this jack, electric mortiser post 232 is awarded at the center that is provided with in jack, be respectively arranged with annular and award electric contact point 231,233 on the lateral wall of cannelure and madial wall, they respectively have the end of downward extension and bending, and are respectively arranged with fixed contact 231a and 233a at the downside of kink;

Be provided with three power supply contacts 331,332,333 that are the movable contact spring form accordingly in the bottom of socket 230, respectively with award electric contact point 231, award that electricity connects post 232, to award electric contact point 233 corresponding; The contact 332 of wherein powering links to each other with the earth connection of power supply, and all the time with award electricity and connect post 232 and offset; 331,333 of contacts of power supply link to each other with live wire, the zero line of power line respectively, they be arranged in parallel, one end is separately fixed on the housing of socket, is respectively arranged with moving contact 331a, 333a on the other end, lays respectively under fixed contact 231a, the 233a also relative;

Insulation lever 334 is the T type, and referring to Figure 10, the root that the heart connects post 232 among an end of its vertical pole and the socket links to each other, and cross bar then is positioned under moving contact 331a, the 333a;

Plug body 130 is provided with the convex annular wall 134 in the cannelure that can insert described socket 230, and heart position is provided with one and is subjected to electric mortiser post 132 therein, to connect post 232 corresponding with the electricity of awarding of socket, its both sides are respectively arranged with two and are subjected to electric contact point 131,133, and be provided with

contact

131a, 133a at its lower end side, respectively with socket to award electric contact point 231,233 corresponding;

When plug body 130 and socket 230 plug, referring to Fig. 9, the electric contact point 131,133 that is subjected to of plug body contacts with the electric contact point 231,233 of awarding of socket by its

contact

131a, 133a respectively, and connecing post 232 with the center of socket, the center inserting column 132 of plug body presses down, so insulation lever 334 rotates, moving contact end 331a, the 333a of movable contact spring 331,333 are lifted, contact with fixed contact 231a, 233a respectively until moving contact 331a, 333a.

In the foregoing description, insulation lever 334 acts on two power supply contacts 331,333 simultaneously by its two ends, and in actual applications, can be only to act on one of them power supply contact by the one side, another power supply contact then directly links to each other with corresponding power line.

As Figure 11, Figure 12, shown in Figure 13, be embodiments of the invention five, socket 240 central part of end face thereon has a jack, and have a cannelure concentric with this jack, electric mortiser post 242 is awarded at the center that is provided with in jack, be respectively arranged with annular and award electric contact point 241,243 on the lateral wall of cannelure and madial wall, they respectively have the end of downward extension and bending, and are respectively arranged with fixed contact 241a and 243a at the downside of kink;

Be provided with three power supply contacts 341,342,343 that are the movable contact spring form accordingly in the bottom of socket 240, respectively with award electric contact point 241, award that electricity connects post 242, to award electric contact point 243 corresponding; The contact 342 of wherein powering links to each other with the earth connection of power supply, and all the time with award electricity and connect post 242 and offset; 341,343 of contacts of power supply link to each other with live wire, the zero line of power line respectively, they be arranged in parallel, one end is separately fixed on the housing of socket, be respectively arranged with moving contact 341a, 343a on the other end, lay respectively under static electric shock 241a, the 243a and relatively, its middle part is by fulcrum 345 supportings;

Insulation slide block 344 is " people " font, and referring to Figure 13, its top penetratingly enters the bottom of socket annular concentric groove and can make up and down slide relative, both sides, its underpart respectively with the position of power supply contact 341,343 contiguous its stiff ends on;

Plug body 140 is provided with the convex annular wall 144 in the cannelure that can insert described socket 240, and heart position is provided with one and is subjected to electric mortiser post 142 therein, to connect post 242 corresponding with the electricity of awarding of socket, its both sides are respectively arranged with two and are subjected to electric contact point 141,143, and be provided with contact 141a, 143a at its lower end side, respectively with socket to award electric contact point 241,243 corresponding;

When plug body 140 and socket 240 plug, referring to Figure 12, the electric contact point 141,143 that is subjected to of plug body contacts with the electric contact point 241,243 of awarding of socket by its contact 141a, 143a respectively, contacts and the center inserting column 142 of plug body connects post 242 with the center of socket; At this moment, because the convex annular wall 144 of plug body 140 is inserted in the annular groove of socket 240, the insulation slide block 344 under the effect of convex annular wall 144 ends to lower slider, press down shaft-like movable contact spring 341,343, by leverage, its moving contact end is lifted, contact with fixed contact 241a and 243a until moving contact 341a, 343a;

In the foregoing description, insulation slide block 344 acts on two power supply contacts 341,343 simultaneously by its both sides, and in actual applications, can be only to act on one of them power supply contact by the one side, another power supply contact then directly links to each other with corresponding power line.

As Figure 14, shown in Figure 15, be embodiments of the invention six, socket 250 central part of end face thereon has a jack, and has two cannelures concentric with this jack, in jack, be provided with and award electric contact point 252, and be provided with fixed contact 252a in the end of extension downwards and bending; In outer annular groove, be provided with and award electric contact point 251, and have an end of extending downwards; In interior cannelure, be provided with and award electric contact point 253, and be provided with fixed contact 253a in the end of extension downwards and bending;

Be provided with accordingly in the bottom of socket 250 one for static contact power supply contact 351, and two be the power supply contact 352,353 of movable contact spring form, respectively with to award electric contact point 251,252,253 corresponding; The contact 351 of wherein powering remains with the downward extension end of awarding electric contact point 251 and contacts, and links to each other with the earth connection of power supply; 352,353 of contacts of power supply link to each other with live wire, the zero line of power line respectively, their one high and one low be arrangeding in parallel, and its upside is respectively arranged with moving

contact

352a and 353a, and relative with described fixed contact 252a, 253a respectively;

On its inclined-plane, its inboard makes it have outwards traversing trend by a back-moving spring 355 supportings to wedge shape collets 354 with the moving contact end bearing of described power supply contact 352,353;

Plug body 150 is provided with the convex annular wall 154 in the cannelure that can insert described socket 250, and heart position is provided with one and is subjected to electric mortiser post 152 therein, with socket to award electric contact point 252 corresponding, its both sides are respectively arranged with V-type and are subjected to electric contact point 151 and are subjected to electric mortiser post 153, respectively with socket to award electric contact point 251,253 corresponding;

When plug body 150 and socket 250 plugged, referring to Figure 15, the V-type of plug body was subjected to electric contact point 151 and is subjected to electric mortiser post 152,153 and contacts with the electric contact point 251,252,253 of awarding of socket respectively; At this moment, wedge shape collets 354 are inwardly traversing under annular outer wall 155 effects of plug body, and the movable contact spring 352,353 that promotes to be positioned on its inclined-plane moves up, and contacts with fixed contact 252a, 253a respectively until moving

contact

352a, 353a;

In the foregoing description, wedge shape collets 354 act on two power supply contacts 352,353 simultaneously by its inclined-plane, and in actual applications, can be only to act on one of them power supply contact by the one side, another power supply contact then directly links to each other with corresponding power line.

As Figure 16, shown in Figure 17, be the embodiment of the invention seven, it is the variation of embodiment six, but its have one with above-mentioned six features that embodiment is different, be socket thereon end face open be annular concentric groove (be in the present embodiment three annular concentric grooves 251,252 ', 253), but not centre bore and concentric annular groove, its superior part is, can overcome the Power Limitation that can not excessively cause because of former center hub;

In fact, for the foregoing description one to six, also can adopt as the variation among the embodiment seven, the center hub that is about on the socket is replaced with a center annular groove, this point be easy to according to the accompanying drawing of embodiment one to six in conjunction with the embodiments seven accompanying drawing understood, therefore concrete structure chart omits at this, and its text description also repeats no more.

Claims

1, a kind of electric connector that is used for cordless electric appliance, include and to peg graft mutually and can counterrotating plug body and socket, the socket central part of end face thereon has a jack, and have a cannelure concentric with this jack, in jack and cannelure, be respectively arranged with and award electric connecting terminals, and plug body is provided with accordingly and is subjected to electrfic centre binding post and peripheral binding post, engage with the center hub of socket and the electric connecting terminals of awarding in the cannelure respectively, it is characterized in that, in described socket, also be provided with:

2, the electric connector that is used for cordless electric appliance according to claim 1, the power supply contact that it is characterized in that described socket is one, link to each other with the live wire or the zero line of power supply, award electric connecting terminals for other two of two supply lines of other of power supply and socket and link to each other, described contact deciliter mechanism promptly acts on awarding between the electric connecting terminals of this power supply contact Power Block corresponding with it.

3, the electric connector that is used for cordless electric appliance according to claim 1, the power supply contact that it is characterized in that described socket is two, link to each other with zero line with the live wire of power supply respectively, the earth connection of power supply links to each other with the corresponding electric connecting terminals of awarding of socket, and described contact deciliter mechanism acts on awarding between the electric connecting terminals of one of them power supply contact Power Block corresponding with it at least.

4, the electric connector that is used for cordless electric appliance according to claim 1, the power supply contact that it is characterized in that described socket is three, link to each other with live wire, zero line and the earth connection of power supply respectively, and to award electric connecting terminals corresponding with three of socket respectively, and described contact deciliter mechanism acts on awarding between the electric connecting terminals of one of them power supply contact Power Block corresponding with it at least, and this power supply contact that is applied is to link to each other with the live wire or the zero line of power supply.

5, according to claim 1 or 2 or the 3 or 4 described electric connectors that are used for cordless electric appliance, the electrfic centre binding post that is subjected to that it is characterized in that described plug body is an inserting column, its peripheral binding post is inserting column or contact, and socket award electric connecting terminals for connecing post or contact.

6, the electric connector that is used for cordless electric appliance according to claim 5, it is characterized in that the electric connecting terminals of awarding in the center hub of described socket links to each other with earth connection in the power supply, described contact deciliter mechanism awards with this that electric connecting terminals links to each other and is driver part with it, and the electric connecting terminals of awarding that is positioned at socket annular concentric groove has at least one to be described normally opened contact.

7, the electric connector that is used for cordless electric appliance according to claim 6, it is characterized in that described contact deciliter mechanism is made of with the power supply contact that is positioned at same horizontal direction setting under it the insulation push rod of a horizontal direction setting, the root that the heart connects post among described insulation push rod middle part and the socket links to each other, its end has a part bending down, the side of its this kink takes the form of inclined plane, and with the power supply contact corresponding parallel inclined-plane contact, the power supply contact is provided with and moving contact, with be arranged on socket annular concentric groove in to award under the electric contact point fixed contact of distolateral wall relative, when the insulation push rod moves down, promptly pass through ramp effect, the power supply contact is moved towards fixed contact, contact with fixed contact until moving contact.

8, the electric connector that is used for cordless electric appliance according to claim 6, it is characterized in that the vertical movable contact spring that described contact deciliter mechanism is the collets of inverted ladder type and is positioned at its side by a cross section constitutes, the root that the heart connects post among described collets upper end and the socket links to each other, its lower end is supported by a back-moving spring, described vertical movable contact spring is provided with the moving contact that joins with power firestreak or zero line, with be arranged on socket annular concentric groove in to award under the electric contact point fixed contact of distolateral wall relative, when the inverted ladder type collets move down, the vertical movable contact spring that is positioned at its side outwards tilts towards fixed contact, contacts with fixed contact until moving contact.

9, the electric connector that is used for cordless electric appliance according to claim 6, it is characterized in that described contact deciliter mechanism includes the insulation push rod that horizontal direction that root that the heart among a middle part and the socket connects post links to each other is provided with, its two ends are provided with the moving contact that links to each other with power firestreak or zero line, end bends under described moving contact under the electric contact point and corresponding being arranged on awarded in the socket annular concentric groove, make the fixed contact that is arranged on this kink just in time relative with described moving contact, when the insulation push rod moved down, moving contact and then moved down with fixed contact and contacts.

10, the electric connector that is used for cordless electric appliance according to claim 6, it is characterized in that described contact deciliter mechanism is made of an insulation lever and shaft-like movable contact spring, wherein an end of movable contact spring is fixed on the housing of socket, be provided with moving contact on the other end, end bends on described moving contact under the electric contact point and corresponding being arranged on awarded in the socket annular concentric groove, make the fixed contact that is arranged on this kink just in time relative with described moving contact, the root that the heart among an end and the socket of lever of wherein insulating connects post links to each other, the other end is positioned under the moving contact end of movable contact spring, when the insulation push rod moves down, the insulation lever rotates, the moving contact end of movable contact spring is lifted, contact with fixed contact until moving contact.

11, the electric connector that is used for cordless electric appliance according to claim 5, it is characterized in that described contact deciliter mechanism is made of an insulation slide block and shaft-like movable contact spring, wherein an end of movable contact spring is fixed on the housing of socket, be provided with moving contact on the other end, its middle part is by point supporting, the end bending makes the fixed contact that is arranged on this kink just in time relative with described moving contact on described moving contact under the electric contact point and corresponding being arranged on awarded in the socket annular concentric groove; The insulation slide block penetratingly is provided with socket annular concentric trench bottom and can makes slide relative up and down, its lower end then is against on the position of contiguous its stiff end of described shaft-like movable contact spring, when the insulation slide block moves down, press down shaft-like movable contact spring, by leverage, its moving contact end is lifted, contact with fixed contact until moving contact.

12, according to claim 1 or 2 or the 3 or 4 described electric connectors that are used for cordless electric appliance, the annular concentric groove that it is characterized in that described socket has only one, on the madial wall of this cannelure and lateral wall, be respectively arranged with annular and award electric contact point, and the electric peripheral binding post that is subjected to of corresponding plug body also is contact, and the cannelure madial wall of respective socket body be subjected to electric contact point within it side have the contact of protrusion, and the electric contact point that is subjected to of the ring slot outside wall of respective socket body has the contact of protrusion in its outside.

13, according to claim 1 or 2 or the 3 or 4 described electric connectors that are used for cordless electric appliance, the annular concentric groove that it is characterized in that described socket has two, on the sidewall of each cannelure, be provided with one respectively and award electric contact point, the electric peripheral binding post that is subjected to corresponding on the plug body then is a contact, and has the contact of protrusion in a side relative with this cannelure sidewall.

14, according to claim 1 or 2 or the 3 or 4 described electric connectors that are used for cordless electric appliance, the annular concentric groove that it is characterized in that described socket has two, be provided with one respectively in the bottom of each cannelure and award electric contact point, the electric peripheral binding post that is subjected to corresponding on the plug body then is an inserting column.

15, according to claim 1 or 2 or the 3 or 4 described electric connectors that are used for cordless electric appliance, it is characterized in that in the center hub of described socket to award electric contact point corresponding with live wire or zero line in the power supply, and this is awarded electric contact point and is one of described normally opened contact, and in the cannelure award electric contact point one of them link to each other with earth connection in the power supply.

16, the electric connector that is used for cordless electric appliance according to claim 15, it is characterized in that described contact deciliter mechanism is made of the collets of a wedge shape and the moving contact seat that is positioned on its inclined-plane, the inboard of wedge shape collets is supported by a back-moving spring, make it have outwards traversing trend, described moving contact seat is provided with the moving contact that joins with power firestreak or zero line, with be arranged on socket in corresponding to award the fixed contact of holding under the electric contact point relative, when the wedge shape collets inside when traversing, the moving contact seat that is positioned on its inclined-plane moves up, and contacts with fixed contact until moving contact.

17,, it is characterized in that described plug body is provided with the convex annular wall in the cannelure that can insert described socket according to claim 1 or 2 or the 3 or 4 described electric connectors that are used for cordless electric appliance.

18, a kind of electric connector that is used for cordless electric appliance, include and to peg graft mutually and can counterrotating plug body and socket, socket end face thereon has at least two concentric cannelures, and in cannelure, be respectively arranged with and award electric connecting terminals, and plug body is provided with accordingly and is subjected to electric connecting terminals, engage with the electric connecting terminals of awarding in the socket cannelure respectively, it is characterized in that, in described socket, also be provided with: