CN209200158U - Electric connection coupler and its socket, electrode mounting structure - Google Patents

Abstract

The utility model discloses a kind of electric connection coupler and its socket, electrode mounting structure.The electrode mounting structure is used to install the first electrode in the socket of electric connection coupler comprising: connecting terminal has the first screw hole and fixed end face, and is formed with the accommodation space of the mounting portion insertion for the first electrode；Terminal watt pad, has the second screw hole and connecting end surface, and second screw hole is corresponding with first screw hole, which is inserted into the accommodation space and forms face contact with the mounting portion；Terminal screw passes through first screw hole and second screw hole, and the screw end of the terminal screw is in contact with the connecting end surface and fixes the mounting portion between the connecting end surface and the fixation end face.The electrode mounting structure of the utility model provides the design of stress dispersion when accessing conducting wire for the electrode of socket, avoids the deformation of connecting part electrode, so that electrical connection is safer and reliable.

Description

Electric connection coupler and its socket, electrode mounting structure

Technical field

The utility model relates to a kind of electrode mounting structure and with its socket and electric connection coupler.

Background technique

Current electric connection coupler mainly includes plug and socket, and wherein the electrode of socket is in access conducting wire (example Such as power supply line or ground wire) when, it will directly be contacted with the mounting portion of electrode generally by terminal screw, such direct contact can make It is small to obtain forced area, summarize easy stress concentration in the process for tightening terminal screw and the mounting portion of electrode is caused to deform, and The size that mounting portion deformation will affect other positions changes, to influence the quality of entire product.Therefore, there is an urgent need to one The novel electrode mounting structure of kind can overcome drawbacks described above.

Utility model content

The purpose of the utility model is to provide a kind of electric connection coupler and its sockets, electrode mounting structure, pass through the electricity Pole mounting structure can make electrode become face contact from point contact, so that electrical connection is safer reliable.

To achieve the goals above, the utility model provides a kind of electrode mounting structure, for installing electric connection coupler Socket in first electrode, it is characterized in that, which includes:

Connecting terminal has the first screw hole and fixed end face, and is formed with the mounting portion insertion for the first electrode Accommodation space；

Terminal watt pad, has the second screw hole and connecting end surface, second screw hole is corresponding with first screw hole, the connection End face is inserted into the accommodation space and forms face contact with the mounting portion；

Terminal screw passes through first screw hole and second screw hole, and the screw end of the terminal screw and the connecting pin Face is in contact and fixes the mounting portion between the connecting end surface and the fixation end face.

In one or more embodiments of the utility model, it is provided with grab on the fixation end face, with the fixation end face phase The hook portion matched with the grab is provided on the installation end face of the corresponding mounting portion.

In one or more embodiments of the utility model, which is to enclose the rectangular knot formed by four bread Structure, the terminal watt pad are in n font.

In one or more embodiments of the utility model, also there is tin coating, this is tin plating on the surface of the connecting terminal Layer with a thickness of 4~6 μm；And/or also there is zinc coat on the surface of the terminal watt pad；And/or the hardness of the terminal watt pad Greater than the hardness of the terminal screw and the first electrode.

In one or more embodiments of the utility model, the connecting end surface and the mounting portion have the arc to mate with each other Shape face.

To achieve the goals above, the utility model additionally provides a kind of socket, it is characterized in that, which has first Electrode, the first electrode are installed by electrode mounting structure as described above.

In one or more embodiments of the utility model, which is plug bush structure, which includes inserting Tail portion and sleeve head are covered, and the sleeve head is formed with the socket of the insertion of the second electrode on the plug for electric connection coupler And the interconnecting piece being electrically connected with the second electrode, which forms the mounting portion.

In one or more embodiments of the utility model, which also has upper cover, lower casing, is installed on the upper cover and is somebody's turn to do Rotatable protective cover and mounting post between lower casing, the upper cover have for guiding the plug of electric connection coupler by first Beginning position rotates the guide groove of predetermined angular to conductive site, which is fixedly installed in the center of the lower casing, this is anti- Protecting cover is pivotally mounted by the mounting post and has spliced eye corresponding with the second electrode on the plug on the protective cover, should Second electrode can be inserted into from the spliced eye and be electrically connected when the plug is rotated into the conductive site with the first electrode.

In one or more embodiments of the utility model, which also has automatic rebounding mechanism, the automatic rebounding machine Structure includes two springs, and described two springs are in diagonally to be correspondingly arranged on the position in two opposite corners of the upper cover, One end of each spring is installed on this on lid, and the other end of each spring is installed on the protective cover, and the spring With the reset force that the plug for not being rotated into the conductive site can be reset to the initial position；And/or

The first electrode includes two power electrodes and a grounding electrode, and each first electrode is by the wiring Terminal and the terminal watt pad assembling after be installed in the electrode fitting groove of the lower casing, and correspond to each first electrode this insert The back face that corresponding sleeve spring and the interconnecting piece of the first electrode are also respectively provided with inside and outside set head touches, Wherein, sleeve spring positioned at outside corresponding to the power electrode and the grounding electrode is installed by sliding block, corresponding In sleeve spring positioned inside of the power electrode be by further being extended to form by the corresponding electrode fitting groove Spring mounting groove installation with lower arcuate surface, sleeve spring positioned inside corresponding to the grounding electrode is by by right The spring mounting groove with lower arcuate surface that the electrode fitting groove answered further extends to form is installed or by another sliding block Installation；And/or

It is additionally provided with top pillar on the lower casing, which is installed by the activity of top pillar spring and can be along the direction of insertion of plug It moves up and down, and the top pillar top has positioning region, wherein the positioning region is and is correspondingly arranged in this when the plug is not inserted into Locating slot on protective cover side cooperates positioning, and is to be detached from after the plug is inserted in place from the locating slot.

To achieve the goals above, the utility model provides a kind of electric connection coupler again, it is characterized in that, it include slotting Head and socket as described above.

The utility model can provide stress dispersed structure by the electrode mounting structure when electrode accesses conducting wire, will The stress of connecting part becomes face contact from point contact, keeps the electrical connection of connecting part safer reliable.

The utility model also passes through the automatic shoot back mechanism, can will insert when plug is not rotated in place (i.e. conductive site) Head is reset to initial position (i.e. plug is initially inserted into the position before socket does not rotate), to provide for user safer Operational, more structurally sound connectivity and more stable usability.

Detailed description of the invention

The decomposition diagram of the socket of the electric connection coupler of one preferred embodiment of Fig. 1 the utility model；

Front schematic view after the socket assembling that Fig. 2 is Fig. 1；

Fig. 3 is the structural schematic diagram of the plug of the electric connection coupler of the utility model；

Fig. 4 is the schematic perspective view of the connecting terminal in the socket of Fig. 1；

Fig. 5 is the schematic perspective view of the terminal watt pad in the socket of Fig. 1；

The first electrode and connecting terminal of plug bush structure after the socket assembling that Fig. 6 is Fig. 1, terminal watt pad pass through wiring spiral shell The structural schematic diagram of nail combination installation；

Fig. 7 is that the first electrode of the prior art combines the structural schematic diagram of installation with connecting terminal by terminal screw；

Fig. 8 is the structural schematic diagram at the back side of the upper cover of the socket of Fig. 2, and the automatic rebounding of the utility model is shown The structure of mechanism；

Fig. 9 is the schematic perspective view of the spring of the automatic rebounding mechanism in Fig. 8；

Figure 10 be after the first electrode of the socket of the electric connection coupler of the utility model is assembled in lower casing one compared with The top view of good embodiment；

Figure 11 is the side sectional view in the direction A-A along Figure 10；

Figure 12 is the decomposition diagram of the socket of the electric connection coupler of the another preferred embodiment of the utility model；

Figure 13 is the top view after the first electrode of the socket of Figure 12 is assembled in lower casing；

Figure 14 is the side sectional view in the direction B-B along Figure 12.

Specific embodiment

The electric connection coupler of one preferred embodiment of the utility model include plug 90 (as shown in Figure 3) and socket (such as Shown in Fig. 1~2).As shown in Figure 1, the socket have upper cover 2, lower casing 11, be installed between the upper cover 2 and the lower casing 11 can Protective cover 3, mounting post 10 and the first electrode of rotation, the first electrode is for example including two to be connected respectively with L line and N line Power electrode 16 and a grounding electrode 14 being connected with ground wire.The mounting post 10 is fixedly mounted in the lower casing 11 On heart position.In conjunction with reference Fig. 2, which has a guide groove 200, which positions including an insert port 201, one Mouthfuls 202 and it is connected to the insert port 201 and the connectivity slot (not shown) of the positioning port 202, the corresponding position of insert port 201 It is set to initial position P1, which is conductive site P2, and initial position P1 and conductive site P2 Between angle be A, may be, for example, 60 °, the guide groove 200 is for guiding the plug 90 pre- by initial position P1 rotation one Angle A (for example, 60 °) is determined to conductive site P2.The protective cover 3 is to be pivotally mounted by the mounting post 10, and have thereon It is opposite with the second electrode (for example including two power electrodes 96 shown in Fig. 3 and a grounding electrode 94) on the plug 90 The spliced eye 301 answered.Wherein, the second electrode on the plug 90 can be inserted into and in 90 quilt of plug from the spliced eye 301 It is electrically connected when rotation is to conductive site P2 with the first electrode, i.e., the power electrode 96 on the plug can correspond to and the socket On power electrode 16 completely attach to, the grounding electrode 94 on the plug can be corresponded to be connect completely with the grounding electrode 14 on the socket Touching, to realize safe electric connection.

In the present embodiment, it is also provided with insulation board 6 between the protective cover 3 and the first electrode, which can also It is pivotally mounted by the mounting post 10, and is correspondingly arranged on sliding slot 61 on the insulation board 6, with for second electricity on the plug Pole is inserted and slides into conductive site P2 by initial position P1 along it.

As shown in figure 3, also there is a positioning block 91 on the plug 90, it can be along the side of the outer surface perpendicular to the plug 90 It moves in or out, and can be moved inward by the gearing of a unlocking knob 92 relative to the outer surface of the plug, i.e. retraction to I-I In the plug.Wherein, when the plug 90 is inserted into the socket, which can slide simultaneously along the guide groove 200 of the upper cover 2 The plug 90 is guided to be rotated into conductive site P2 by initial position P1, the locating piece 91 is when being in conductive site P2 That to pop up the plug outer and limited by the positioning port 202 and be fixed on the plug 90 in the socket, so may make this One electrode and the second electrode keep completely attaching to, and the plug is made to be in safe handling state.And when needing to unclamp plug, it can With by pressing the unlocking knob 92 so that in 91 retraction of the locating piece plug 90, so as to release the plug and the socket it Between positioning, so the plug can directly be extracted, or plug is anti-counterclockwise along the guide groove 200 (as shown in Figure 2) It is extracted again after to rotation to initial position P1.

In the present invention, the first electrode of the socket is by including connecting terminal 13, terminal watt pad 14 and connecing The electrode mounting structure of line screw 20 is installed, such as the power electrode 16 and the grounding electrode 14, can use terminal watt pad 21 are mounted in connecting terminal 13 and are fixed by terminal screw 20.

Specifically, as shown in figure 4, the connecting terminal 13 may include opposite end face 131 and 132 and opposite end face 133 and 134, these end faces 131~134, which surround, forms an accommodation space 130.Wherein, screw hole is additionally provided on the end face 131 135。

As shown in figure 5, the terminal watt pad 21 is substantially in " n " font comprising be relatively fixed end face 211 and connecting end surface 212 and the fixation end face 211 and the intermediate end face 213 of the connecting end surface 212 are connected, is provided with spiral shell on the fixation end face 211 Hole 215.The connecting end surface 212 can preferably have a radian, such as be adapted with the outer surface of the mounting portion of the first electrode.

As shown in fig. 6, the first electrode can be plug bush structure, and by taking power electrode 16 as an example, the sleeve of the power electrode 16 Structure can be bent to form by a strip shaped electric poles, and be bent to form a sleeve head 161 and a sleeve tail portion 162, wherein this is inserted Set head 161 include by after bending two ends 1611 and 1612 jointly limit formed with so that the second electrode is inserted into Socket 1610 and the interconnecting piece 1613 and 1614 to be electrically connected with the second electrode of insertion, 162 shape of sleeve tail portion At the mounting portion of the first electrode.The first electrode is the appearance that the sleeve tail portion 162 is inserted into the connecting terminal 13 during installation Receive in space 130, the connecting end surface 212 of the terminal watt pad 21 be inserted into the accommodation space 130 and with 162 shape of sleeve tail portion At face contact, terminal screw 20 be across the screw hole 215 (see Fig. 7), the screw hole 135 (see Fig. 6) and with 212 phase of connecting end surface Contact, so as to fix the sleeve tail portion 162 between the connecting end surface 212 and the end face 132 of the connecting terminal 13.

And first electrode and connecting terminal by terminal screw combine the structure of installation as shown in fig. 7, existing in the prior art First electrode (by taking power electrode 16 ' as an example) and connecting terminal 13 ' be that installation is directly tightened by terminal screw 20 ', when Access conducting wire tightens terminal screw 20, if power Relatively centralized (the i.e. screw end of terminal screw 20 and power electrode 16 ' tightened Sleeve tail portion 162 ' directly contact, contact area is small), then will lead to connecting part sleeve tail portion 162 ' deformation, deformation herein The other positions size that will affect plug bush structure changes.Compared with the prior art shown in Fig. 7, as shown in FIG. 6 reality With the novel design (i.e. increase terminal watt pad 20) by increasing stress dispersion at connecting terminal, when being linked into conducting wire (example Such as L line or N line or ground wire) after, screw end is the first mechanism with stress decentralized design, such as terminal when tightening terminal screw 20 Watt pad connecting end surface 212 formed face contact (terminal watt pad hardness be greater than terminal screw and first electrode hardness), then Stress dispersed structure is contacted with sleeve tail portion 162 again, to effectively prevent in the prior art because of stress caused by directly contacting Collection neutralizes the problem of plug bush structure deformation.

Preferably, as shown in fig. 6, in the present invention, on the end face 132 (i.e. fixed end face) of the connecting terminal 13 It is also provided with grab 1322, is provided with and the grab on the end face of the sleeve tail portion 162 corresponding with the end face 1322 1322 hook portions 1622 matched are clamped by the cooperation of the grab 1322 and the hook portion 1622, may make the first electrode with Installation between the connecting terminal 13 is more secured.

As shown in connection with fig. 1, the socket during installation, can also the first electrode interconnecting piece 1613 and 1614 (see figure 6) the back side is correspondingly arranged sleeve spring 18, to make the interconnecting piece 1613 and 1614 that can keep tight with the second electrode of insertion Contiguity touching.

Fig. 1 is referred to preferably, combining, is also provided in the position that the back side of the protective cover 3 corresponds to the spliced eye 301 Sliding block 5 is slidably mounted in the sliding block mounting groove 305 (see Fig. 8) on the protective cover 3 by sliding block spring 4.Wherein, When the second electrode of the plug is inserted into from the spliced eye 301, which can be open to expose the cunning on the insulation board 6 Slot 61, so that the second electrode can be inserted into the sliding slot 61 and is rotated clockwise to along the sliding slot 61 by initial position P1 (see Fig. 2) Conductive site P2 (see Fig. 2)；And when the plug is not inserted into, it is closing which, which is under the reset response of the sliding block spring 4, The spliced eye 301, thus preventing the pollutants such as dust to fall into the socket by the spliced eye 301 leads to poor contact.

The socket can be fixed by the upper cover 2 and the lower casing 11 by rigging screw 9 after assembling.In the upper cover 2 Also a decorative panel 1 further can be installed by mounting screw 19, so that appearance is more beautiful for socket, the socket after assembling is just Face is as shown in Figure 2.It is also provided with label 22 on the socket, the application method or other warnings of socket can be marked thereon Label etc., these are not intended as limitations of the present invention.

Preferably, in the present invention, which also has automatic rebounding mechanism, which is mounted to In the socket, such as it is mounted between the protective cover 3 and the upper cover 2.The automatic rebounding mechanism includes elastic component, and one end is Be installed in the upper cover 2, the other end is mounted on the protective cover 3, wherein the elastic component have will can not be rotated into this The plug 90 of conductive site P2 is reset to the reset force of initial position P1.

In the present invention, as shown in figure 8, the elastic component can be spring 17, and the spring can be two, and being is in pair It is correspondingly arranged in angle on the position in two opposite corners of the upper cover 2.In the embodiment shown in fig. 8, the protective cover 3 Correspondence extends outward to form two alar parts 31 on periphery, is formed with the first fixed column 37 on each alar part 31, each spring 17 one end is the second fixed column 27 and the upper cover 2 fixed installation on the corresponding corner by the back side of the upper cover 2, and every The other end of a spring 17 is fixedly mounted by first fixed column 37 and the protective cover 3.

In the present invention, possessed reset force can be 5N~30N to each spring 17 during the work time.Preferably Ground, as shown in figure 9, the diameter D of each spring may be, for example, 5mm~6.5mm, it preferably can be 5.8mm.The length of each spring 17 L may be, for example, 22~26mm, preferably can be 24mm.The fixing end of each spring 17 has an opening O, and bore may be, for example, 2mm.The spring 17 can be piano wire spring or stainless steel wire spring.It is, of course, understood that the elastic component is not limited to For spring, and the diameter of the spring 17, length etc. are also not limited to above-mentioned numerical value, according to the design needs, or other Numerical value, this is not intended as limitations of the present invention.

Preferably, the automatic rebounding mechanism may also include resilient cushion 15, can as shown in figure 8, simultaneously combinable refer to Fig. 1 Be installed in the upper cover 2 by a mounting groove 25, the resilient cushion 15 the protective cover 3 be in do not rotated initial position when with The corresponding contact of the part edge of the alar part 31.The material of the resilient cushion 15 can be TPU.Using the resilient cushion 15, this can protect Lead to breakage because the rebound impulse force of spring 17 is excessive between protective cover 3 and upper cover 2.

In the present invention, in conjunction with shown in Figure 10~14, which is connect for example including the power electrode 16 with this Ground electrode 14 is by being respectively arranged in corresponding electrode on the lower casing 11 after the connecting terminal 13 and the terminal watt pad 21 assembling In mounting groove (for example including power electrode mounting groove 116 and grounding electrode mounting groove 114) and it is limited.Also, correspond to The power electrode 16 and the grounding electrode 14, inside and outside be also respectively provided with corresponding sleeve spring 18 and contact therewith (back face of interconnecting piece 1613,1614 e.g. as shown in FIG. 6 touches), to can ensure that on the first electrode and the plug Second electrode be reliably electrically connected.Sleeve bullet corresponding to the power electrode 16 and the grounding electrode 14, positioned at outside Spring 18 is to be installed respectively by electrode sliding block 8, ground connection sliding block 12.Sleeve spring corresponding to the power electrode 16, positioned inside 18 be (can by the spring mounting groove with lower arcuate surface further extended to form by the corresponding power electrode mounting groove 16 The spring mounting groove 1142 extended to form with reference to shown in Figure 11 by the grounding electrode mounting groove 114) installation.Corresponding to this Grounding electrode 14, the sleeve spring 18 positioned inside can be by further extending shape by the corresponding grounding electrode mounting groove 114 At spring mounting groove 1142 with lower arcuate surface (embodiment as shown in Figure 10,11) is installed, or another cunning can be passed through Block 122 installs (embodiment as shown in Figure 12~14).

In a preferred embodiment of the utility model, as shown in Figure 10~11, the sleeve spring 18 positioned at outside is logical The electrode sliding block 8 and the ground connection sliding block 12 installation are crossed, and the sleeve spring 18 for being located inside is by the bullet with lower arcuate surface Spring mounting groove installation, to ensure each assembly of sleeve spring 18 in place.For example, as shown in figure 11, inside and outside the two of the grounding electrode 14 Side is respectively arranged with the sleeve spring 182 positioned inside and the sleeve spring 181 positioned at outside, and wherein the sleeve spring 181 is It is installed by the ground connection sliding block 12, which is by further being extended to form by the grounding electrode mounting groove 114 Spring mounting groove 1142 with lower arcuate surface install.

For embodiment shown in Figure 10~11, since the top (not indicating in figure) of the grounding electrode 14 is inserted in the plug After entering in the socket i.e. with grounding electrode holding on the plug is in electrical contact (rotates from initial position P1 to leading in the plug The grounding electrode 14 on grounding electrode 94 and the socket during electric position P2 on the plug keeps in electrical contact), therefore It will lead to tightening portion and the grounding electrode mounting groove 114 that the terminal screw 20 of the grounding electrode 14 is fixed in installation in rotary course Medial surface interfere, as shown in figure 11.In order to avoid the generation of this interference, in the another preferred embodiment of the utility model In, which can be corresponded to this interference portion and translated outward, as shown in Figure 12~14, i.e., expanded outward Grounding electrode mounting groove 114, still, because of the particularity of Shooting Technique, it is contemplated that a possibility that formed product and for guarantee should The normal assembly of sleeve spring 182, the utility model preferably pass through and additionally increase another sliding block 122, insert to install this Sleeve spring 182, so can the cooperation of sliding block and sleeve spring inside and outside the grounding electrode 14 is limited, from And can avoid install the grounding electrode 14 tighten screw 20 and the medial surface of the grounding electrode mounting groove 114 interferes.

Preferably, as shown in figure 12, the utility model also passes through the 77 activity installation of top pillar spring on the lower casing 11 of socket There is a top pillar 7, which can move up and down along the direction of insertion of the plug.After mounting, determine positioned at 7 top of top pillar Position portion (not indicating in figure) is the through-hole 67 on the insulation board 6 and can be with the locating slot 36 that is set to 3 side of protective cover Match positioning.Wherein, when plug is not inserted into, the positioning region of the top pillar 7 is matched with the locating slot 36 on the protective cover 3 Positioning is closed, rotates to limit the protective cover 3 and guarantees that socket is in initial position.And when a plug is to be inserted into the socket, it should Grounding electrode 94 (see Fig. 3) on plug is downwardly into socket, when the lower part and the top pillar 7 for being inserted into the grounding electrode 94 When the contact portion (not indicating in figure) of lower part is in contact, which will drive the top pillar 7 and moves down, until the top pillar 7 positioning region is detached from (i.e. plug is inserted in place) from the locating slot 36 of the protective cover 3, at this time i.e. rotatable plug, from And the rotation of the protective cover 3 can be driven by the rotation of plug.And during the plug is downwardly into, if the grounding electrode 94 are not downwardly into (i.e. the positioning region of the top pillar 7 is not completely disengaged with the locating slot 36 of the protective cover 3) in place, this is inserted Head will be limited and can not rotate.In the plug rotary course, if the plug is not rotated in place, the protective cover 3 is at this Under the action of automatic rebounding structure, which can be reset to the initial position.It is also same in the socket of embodiment as shown in Figure 1 The settable above structure of sample, the i.e. top pillar 7, the top pillar spring 77, the through-hole 67, the locating slot 36, details are not described herein.

The electric connection coupler of the utility model is (being not powered at this time) after plug is inserted into socket in use, Plug is rotated to 60 ° in the direction of the clock, and to conductive site, (locating piece of plug springs into the positioning port of the guide groove of upper cover at this time It is interior, be powered at this time), it can use.Moreover, the utility model passes through the automatic rebounding mechanism that is arranged in socket (such as bullet Spring), if user does not rotate plug to designated position (such as conductive site P2) when in use, plug will be in the reset force of spring Under the action of be returned to initial position P1 (i.e. plug be just inserted into socket position) by force, so as to avoid the hair of virtual connection state It is raw.So-called virtual connection state refers to that user is during using electric connection coupler, i.e. when plug does not rotate to designated position Plug is unclamped, it at this time may be due to the electrode on plug is in contact (but not completely attaching to) with the existing part of the electrode on socket Cause entirely to be in virtual connection state with electrical circuit.If electric connection coupler uses for a long time under this virtual connection state, be easy because The calorific value of virtual connection position is excessively high and the plastic part of surrounding is caused to heat, and then leads to the generation of failure.Therefore, the utility model pole The earth improves the functional defect of conventional socket (low current plug, socket), the operability with safety, reliable connectivity, Stable usability.

Although the utility model is disclosed above with embodiment, so it is not intended to limit the utility model, any ripe This those skilled in the art is known, without departing from the spirit and scope of the utility model, when can be used for a variety of modifications and variations, therefore this is practical Novel protection scope is subject to the view scope of which is defined in the appended claims.

Claims (10)

1. a kind of electrode mounting structure, the first electrode in socket for installing electric connection coupler, which is characterized in that the electricity Pole mounting structure includes:

Connecting terminal has the first screw hole and fixed end face, and is formed with the receiving of the mounting portion insertion for the first electrode Space；

Terminal watt pad, has the second screw hole and connecting end surface, second screw hole is corresponding with first screw hole, the connecting end surface It is inserted into the accommodation space and forms face contact with the mounting portion；

Terminal screw passes through first screw hole and second screw hole, and the screw end of the terminal screw and the connecting end surface phase It contacts and fixes the mounting portion between the connecting end surface and the fixation end face.

2. electrode mounting structure according to claim 1, which is characterized in that grab is provided on the fixation end face, with this It fixes on the installation end face of the corresponding mounting portion in end face and is provided with the hook portion matched with the grab.

3. electrode mounting structure according to claim 2, which is characterized in that the connecting terminal is to be enclosed to be formed by four bread Square structure, the terminal watt pad is in n font.

4. electrode mounting structure according to claim 3, which is characterized in that also have on the surface of the connecting terminal tin plating Layer, the tin coating with a thickness of 4~6 μm；And/or also there is zinc coat on the surface of the terminal watt pad；And/or the terminal watt The hardness of pad is greater than the hardness of the terminal screw and the first electrode.

5. electrode mounting structure described in any claim according to claim 1~4, which is characterized in that the connecting end surface with The mounting portion has the arcwall face to mate with each other.

6. a kind of socket, which is characterized in that the socket has first electrode, which appointed by such as Claims 1 to 5 The installation of electrode mounting structure described in one claim.

7. socket according to claim 6, which is characterized in that the first electrode is plug bush structure, which includes Sleeve tail portion and sleeve head, and the sleeve head is formed with inserting for the insertion of the second electrode on the plug for electric connection coupler Mouth and the interconnecting piece being electrically connected with the second electrode, which forms the mounting portion.

8. socket according to claim 7, which is characterized in that the socket also has upper cover, lower casing, be installed on the upper cover and Rotatable protective cover and mounting post between the lower casing, the upper cover have for guide the plug of electric connection coupler by Initial position rotates the guide groove of predetermined angular to conductive site, which is fixedly installed in the center of the lower casing, should Protective cover is pivotally mounted by the mounting post and has on the protective cover spliced eye corresponding with the second electrode on the plug, The second electrode can be inserted into from the spliced eye and electrically connect when the plug is rotated into the conductive site with the first electrode It connects.

9. socket according to claim 8, which is characterized in that the socket also has automatic rebounding mechanism, the automatic rebounding Mechanism includes two springs, and described two springs are in the position for being diagonally correspondingly arranged in two opposite corners of the upper cover On, one end of each spring is installed on this on lid, and the other end of each spring is installed on the protective cover, and the bullet Spring has the reset force that the plug for not being rotated into the conductive site can be reset to the initial position；And/or

The first electrode includes two power electrodes and a grounding electrode, and each first electrode is by the connecting terminal It is installed in the electrode fitting groove of the lower casing with after the terminal watt pad assembling, and corresponds to the sleeve head of each first electrode The back face that corresponding sleeve spring and the interconnecting piece of the first electrode are also respectively provided with inside and outside portion touches, In, sleeve spring positioned at outside corresponding to the power electrode and the grounding electrode is installed by sliding block, is corresponded to Sleeve spring positioned inside of the power electrode is the tool by further being extended to form by the corresponding electrode fitting groove There is the spring mounting groove of lower arcuate surface to install, sleeve spring positioned inside corresponding to the grounding electrode is by by corresponding to The electrode fitting groove further extend to form with lower arcuate surface spring mounting groove installation or pacified by another sliding block Dress；And/or

It is additionally provided with top pillar on the lower casing, which is installed by the activity of top pillar spring and can be above and below the direction of insertion of plug It is mobile, and the top pillar top has positioning region, wherein the positioning region is and is correspondingly arranged in the protection when the plug is not inserted into Locating slot on lid side cooperates positioning, and is to be detached from after the plug is inserted in place from the locating slot.

10. a kind of electric connection coupler, which is characterized in that include plug and such as claim 6~9 any claim institute The socket stated.