CN2574261Y

CN2574261Y - Electrical connector

Info

Publication number: CN2574261Y
Application number: CN02248862U
Authority: CN
Inventors: 池鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-22
Filing date: 2002-10-22
Publication date: 2003-09-17
Anticipated expiration: 2012-10-22

Abstract

The utility model relates to an electric coupler, which comprises a plug and a socket, and the plug and the socket can be sleeved mutually. The plug is provided with a cylindrical wiring terminal positioned on the central position and an annular wiring terminal which is concentric with the cylindrical wiring terminal; the socket is provided with a sleeving and plugging structure and a wiring terminal of an elastic electric contact sheet which are matched with two wiring terminals of the plug. The utility model is characterized in that the integral shape of a third wiring terminal of the plug forms a straight cylinder shape, and the socket also has 3 to 6 offset jacks which have expanded lateral surfaces and are in horn shape with large outer parts and small inner parts. When the plug and the socket of the electric coupler are plugged together, the rotating orientation direction is not required to be identified, and no relative rotation can be generated after the plug and the socket are plugged together.

Description

Electrical cnnector

Technical field

The utility model relates to a kind of electrical cnnector of being made up of plug and socket.

Background technology

When traditional plugs and sockets plugs together, must make the corresponding jack of each binding post alignment socket of plug, therefore can only plug together action with unique positioning of rotating direction between the two, when they be applied in cordless electric appliance be electrically connected (as the kettle body of separated electric kettle and being electrically connected of kettle seat) time, plug together dyskinesia.China's utility model patent ZL94194173.6 number and disclose a kind of plug for ZL00233024.5 number respectively and electrical cnnector that socket can plug together with any positioning of rotating direction, their both common ground be plug all adopt cylindrical binding post and with the annular binding post of the concentric setting of cylindrical binding post, both differences are: one of them earth terminal of the socket of ZL94194173.6 patent is exposed at the annular outer wall surface outward, and each binding post of the socket of ZL00233024.5 patent is covered, isolated mutually by dead ring.Above-mentioned two kinds of electrical cnnectors all make and plug together action and be very easy to because of plugging together Shi Buxu identification positioning of rotating direction, but also bring following shortcoming simultaneously: when in use being in "on" position, plug and socket also relatively rotate easily, since the position of plug annular plug wire terminal with and global shape, all can there be error in size in manufacture process, distortion also can appear in the use, therefore at plug and socket in relative rotation in the process, contact area between the annular binding post of plug and the elasticity electric contact point of socket can constantly change, at some moment even meeting appearance point surface contact state, thereby produce electric arc.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of electrical cnnector is provided, and its plug and socket plug together easily, and both can not relatively rotate again after plugging together.

Its purpose can realize by following scheme: this electrical cnnector comprises the plug and socket of fit mutually, plug is provided with three binding posts, wherein first binding post is the cylindrical binding post that is positioned at the plug center, second binding post is the annular binding post with the concentric setting of cylindrical binding post, socket has the center hub with first binding post location matches of plug, be provided with elasticity electric contact point binding post in the center hub, socket also has cover inserting structure and the elasticity electric contact point binding post with plug annular binding post coupling, its main feature is that the global shape of the 3rd binding post of plug is the right cylinder shape; Socket also has several biasing jacks that meet following feature:

---the cross section of biasing jack outermost end is the circular arc bar shaped; (cross section of so-called biasing jack is meant the cross section vertical with the jack depth direction; The outermost end of so-called biasing jack is the outermost end along the jack depth direction)

---distance between each biasing jack and center hub equals the centre distance between the 3rd binding post of plug and first binding post;

---the elasticity electric contact point binding post in each jack of setovering is connected to same electrode;

---the side expansion shape of biasing jack be little tubaeform in outward greatly.Like this, when plug and socket are faced one another with arbitrary positioning of rotating direction, and during with first binding post alignment socket center hub of plug, plug annular binding post overlaps inserting structure accordingly with alignment socket, and the 3rd binding post of plug probably alignment socket one of them the biasing jack; Even under individual cases, the 3rd binding post of plug be the interstitial site between the alignment socket two biasing jacks just, also only need change the positioning of rotating direction of plug and socket a little, just can make one of them biasing jack of the 3rd binding post alignment socket of plug.

Realize above-mentioned purpose preferably scheme be: the socket biasing jack width of the 3rd binding post of width and plug at narrow place equates, after making the 3rd binding post socket biasing of plug jack, since be subjected to the jack width the narrowest place restriction and can not rotate around the center of jack, thereby plug and socket can not be relatively rotated.

Realize that the better scheme of above-mentioned purpose is: the tangential width of the 3rd binding post end of described plug diminishes gradually, (the 3rd binding post of so-called plug tangential, be meant on the cross section of the 3rd binding post of plug, with the 3rd binding post and the vertical direction of first binding post line of centres), the cross section of least significant end is for pointing to the linear of annular binding post home position; Arc section on the cross section of each jack outermost end of setovering joins end to end.Like this, the biasing jack has occupied on the horizontal end face of socket and the center hub average distance equals most positions of the annular belt-like zone of distance between the 3rd binding post of plug and first binding post, when plug faced one another with arbitrary relative positioning of rotating direction with socket, the possibility of one of them biasing jack of the 3rd binding post least significant end alignment socket of plug was very big.

The biasing jack quantity of above-mentioned socket is preferably 3-6.

The shape of the tip end face of above-mentioned first binding post of plug is preferably the plane, and the elasticity electric contact point of above-mentioned socket center hub preferably is positioned at centre position, jack bottom, and it is shaped as the rugosity of alternating bending.After first binding post of plug inserts the socket center hub, the tip end face contact rugosity elasticity electric contact point of first binding post of plug, produce powerful, stable elastic force behind the rugosity elasticity electric contact point compressive deformation, the state that makes maintenance always between the two fully contact, be close to so more can avoid producing arc spark in the process of plugging together.

Description of drawings

Fig. 1 is the socket shape structural representation of the utility model embodiment.

Fig. 2 is the axle side schematic diagram after the biasing jack in the socket shown in Figure 1 is peelled off peripheral material.

Fig. 3 is the side expansion shape schematic diagram of biasing jack among Fig. 2.

Fig. 4 is the plan view shape schematic diagram of socket among Fig. 1.

Fig. 5 is the facade shape schematic diagram of socket among Fig. 1.

Fig. 6 is Fig. 5 A-A sectional structure schematic diagram.

Fig. 7 is Fig. 5 B-B sectional structure schematic diagram.

Fig. 8 is the plug shape structural representation of the utility model embodiment.

Fig. 9 is the internal structure schematic diagram of plug among Fig. 8.

Figure 10 is the facade shape schematic diagram of plug among Fig. 8.

Figure 11 is Figure 10 C-C sectional structure schematic diagram.

Figure 12 is Figure 11 D-D sectional structure schematic diagram.

Figure 13 is a socket cross-sectional view shown in Figure 1.

Figure 14 is a plug shown in Figure 12 and socket shown in Figure 13 matching relationship schematic diagram when plugging together.

Figure 15 is that the M of the rectangular post binding post of plug shown in Figure 12 is to view.

Embodiment

Fig. 8, Fig. 9, Figure 10, plug shown in Figure 11 are provided with three binding posts, wherein first is the cylindrical binding post 11 that is positioned at the plug center, second is the annular binding post 12 with the concentric setting of cylindrical binding post, the 3rd binding post of plug 13 is similar to and is rectangular column, its shape of cross section is approximate to be rectangle, and the centre distance of it and first binding post is a; Fig. 4, shown in Figure 5, socket have with the center hub 21 of first binding post location matches of plug, with the annular lateral wall 22 of plug annular binding post 12 shapes and location matches, and four with center hub apart from being the biasing jack 23 of a.

Fig. 8, Fig. 9, Figure 11, shown in Figure 15, the tangential width of rectangular post binding post 13 ends of plug diminishes gradually, make the approximate triangle that presents handstand in this side, position, the cross section of its least significant end is elongated line segment shape, and the direction of this line segment EF is pointed to the center of circle (shown in Figure 11) of annular binding post.Fig. 1, shown in Figure 4, each jack 23 outermost end cross section of setovering is the circular arc bar shaped, distance approaches zero between the arc section of every adjacent two biasing jack outermost end, each arc section is joined end to end, it is most positions of the annular belt-like zone of a that four biasing jacks have occupied on the horizontal end face of socket with the center hub average distance, therefore when plug is faced one another and makes the cylindrical binding post alignment socket center hub of plug center with socket with arbitrary relative positioning of rotating direction, plug annular binding post 12 is the annular lateral wall 22 of alignment socket, and rectangular post binding post 13 ends of plug one of them biasing jack of alignment socket most probably.Fig. 2, Fig. 3, shown in Figure 6, the expansion shape of each biasing jack side be little tubaeform in greatly outward, partition 232 tops between every adjacent two biasing jacks are rendered as upright triangle, the circular arc bar length of each each cross section of biasing jack shortens from outside to inside gradually along its depth direction, make the width of its inner end the narrowest, and identical with the width of the rectangular post binding post 13 of plug.Insert gradually in the socket process at plug, rectangular post binding post 13 will be under the guiding function of jack partition 232 be done rotation less than 45 around the central axis of socket, revert to the position intermediate of biasing jack at last, because the width of the inner end of biasing jack is corresponding with the width of plug rectangle binding post 13, after the rectangular post binding post 13 of plug was inserted into the inner end of biasing jack, plug no longer can relatively rotate with jack.

Fig. 1, shown in Figure 13, an electrode (E electrode) of socket is connected to a resilient contact 221 that exposes on annular outboard wall 22; Fig. 7, shown in Figure 13 is respectively equipped with elasticity electric contact point binding post 231 in four biasing jacks 23, and these four elasticity electric contact point binding posts 231 all are connected to second electrode (N electrode) of socket; Shown in Figure 13, centre position, socket center hub bottom is provided with the elasticity electric contact point binding post 211 that is connected to the L electrode, this elasticity electric contact point binding post 211 is to make of the excellent elasticity electric conducting material, the rugosity that it is shaped as through the bending of several roads has a silver contact 2111 on these elasticity electric contact point binding post 211 tops.Fig. 8, shown in Figure 12, the tip end face of first binding post 11 of plug be shaped as the plane.

Shown in Figure 14, after plug and socket plugged together, annular binding post 12 medial surfaces on the plug were close on the annular outboard wall 22 of plug, and contact with the resilient contact 221 that exposes at lateral wall; The tip end face of first binding post 11 of plug contacts with the silver contact 2111 of the plug of socket center hub; The elasticity electric contact point binding post 231 of one of them biasing jack of the rectangular post binding post 13 and socket of plug contacts.

In the above-described embodiments, the quantity of biasing jack can change 3 into, also can change 6 into.

Claims

1, a kind of electrical cnnector, comprise the plug and socket of fit mutually, plug is provided with three binding posts, wherein first binding post is the cylindrical binding post that is positioned at the plug center, second binding post is the annular binding post with the concentric setting of cylindrical binding post, socket has the center hub with first binding post location matches of plug, be provided with elasticity electric contact point binding post in the center hub, socket also has cover inserting structure and the elasticity electric contact point binding post with plug annular binding post coupling, and it is characterized in that: the global shape of the 3rd binding post of plug is the right cylinder shape; Socket also has several biasing jacks that meet following feature:

---the cross section of biasing jack outermost end is the circular arc bar shaped;

---the side expansion shape of biasing jack be little tubaeform in outward greatly.

2, according to the electrical cnnector of claim 1, it is characterized in that: each biasing jack of the socket width of the 3rd binding post of width and plug at narrow place equates.

3, according to the electrical cnnector of claim 1 or 2, it is characterized in that: the tangential width of the 3rd binding post end of described plug diminishes gradually, and the cross section of least significant end is for pointing to the linear of annular binding post home position; The arc section of jack of respectively setovering on the cross section of socket outermost end joins end to end.

4, according to the electrical cnnector of claim 1 or 2, it is characterized in that: the biasing jack quantity of socket is 3-6.

5, according to the electrical cnnector of claim 1 or 2, it is characterized in that: the tip end face of described first binding post of plug be shaped as the plane, the elasticity electric contact point of described socket center hub is positioned at centre position, jack bottom, and it is shaped as the rugosity of alternating bending.