CN116565641B

CN116565641B - Electric connector

Info

Publication number: CN116565641B
Application number: CN202310852130.7A
Authority: CN
Inventors: 杜桂兵; 梁敏劲
Original assignee: Shenzhen Greda Electricity Connected Devices Co ltd
Current assignee: Shenzhen Greda Electricity Connected Devices Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-03-15
Anticipated expiration: 2043-07-12
Also published as: CN116565641A

Abstract

The application provides an electric connector, which comprises a socket and a plug, wherein the plug and the socket can form mechanical connection and electric connection through plug-in fit; one end of the plug is provided with a first foolproof combination, one end of the socket is provided with a plurality of groups of second foolproof combinations which are sequentially distributed at intervals along the circumferential direction of the socket, the first foolproof combination can form guide fit with any group of second foolproof combinations to realize foolproof and guide the plug to be inserted into the socket, and the first foolproof combination and the second foolproof combination are arranged at intervals along the opposite inserting direction after the plug and the socket are opposite to each other so that the plug and the socket can realize 360-degree relative rotation. The application provides an electric connector, the first of its plug is gone up prevents slow-witted combination and can prevent slow-witted combination in order to form in one set of second nearby and prevent slow-witted, has reduced the plug and need rotatory angle when to inserting, is convenient for realize plug and socket's the opposite plug in narrow and small space, has also reduced the torsional force to the pencil on the plug simultaneously.

Description

Electric connector

Technical Field

The present application relates to the field of electrical connection technology, and more particularly, to an electrical connector.

Background

Along with the development of technology, the energy storage electric connector is more and more widely applied, and the existing energy storage electric connector is generally connected in a mutually inserting and matching mode through shaft holes, and comprises a socket and a plug, wherein the socket is generally fixed in position, and the plug can be in butt joint with the socket to realize mechanical connection and electric connection with the socket. Because be connected with the pencil on the plug, need consider the pencil in limited installation space how reasonable layout just can occupation space little, whether also consider the junction of plug and pencil and warp and lead to life to descend simultaneously, consider these two aspect factors, when designing electric connector, require plug and socket to form the butt joint back through the shaft hole, the plug can also carry out 360 degrees rotations relative to the socket, conveniently rotate the plug and adjust putting of pencil, make pencil occupation space little, reduce the distortion of the junction of plug and pencil.

However, in the actual use process of the electrical connectors, when a plurality of electrical connectors need to be plugged, misoperation is easy to occur for workers, the negative electrode plug is inserted into the positive electrode socket, or the positive electrode plug is inserted into the negative electrode socket, so that the positive electrode and the negative electrode are short-circuited, and potential safety hazards exist.

Disclosure of Invention

An objective of the present embodiment is to provide an electrical connector, so as to solve the technical problem of "although a plug can rotate 360 degrees relative to a socket, but a potential safety hazard of misplug" in the prior art.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: providing an electrical connector comprising a socket and a plug, the plug and the socket being capable of forming a mechanical connection and an electrical connection by a plug-in fit; the plug comprises a plug body, and is characterized in that one end of the plug body is provided with a first fool-proof combination, one end of the plug body is provided with a plurality of groups of second fool-proof combinations which are sequentially distributed at intervals along the circumferential direction of the plug body, the first fool-proof combination can form guide fit with any group of second fool-proof combinations to realize fool-proof and guide the plug to be inserted into the plug body, and the first fool-proof combination and the second fool-proof combination are arranged at intervals along the opposite inserting direction after the plug body and the plug body are opposite to each other so that the plug body and the plug body can realize 360-degree relative rotation.

In one possible design, each of the second fool-proof combinations is distributed at equal intervals in sequence along the circumferential direction of the socket;

alternatively, each of the second fool-proof combinations is distributed at unequal intervals along the circumferential direction of the socket.

In one possible design, the socket is provided with four sets of the second foolproof assemblies equally spaced along its perimeter Xiang Yici.

In one possible design, the first fool-proof combination includes at least two first fool-proof parts sequentially distributed at intervals along the circumferential direction of the plug, and the second fool-proof combination includes at least two second fool-proof parts sequentially distributed at intervals along the circumferential direction of the socket, and each first fool-proof part and each second fool-proof part can form plug-in fit in a one-to-one correspondence manner.

In one possible design, the first fool-proof combination includes two first fool-proof parts distributed at intervals along the circumferential direction of the plug; the second fool-proof combination comprises two second fool-proof parts which are distributed at intervals along the circumferential direction of the socket.

In one possible design, a first included angle is formed between two adjacent second foolproof parts, a second included angle is formed between two adjacent second foolproof parts in the second foolproof combination, and the first included angle is unequal to the second included angle.

In one possible design, the first fool-proof portion is a protruding strip extending along the opposite insertion direction, and the second fool-proof portion is a slot extending along the opposite insertion direction; or, the first fool-proof part is a slot extending along the opposite inserting direction, and the second fool-proof part is a convex strip extending along the opposite inserting direction.

In one possible design, the electrical connector includes a first fool-proof member and a second fool-proof member, the first fool-proof member being detachably mounted on the plug, the first fool-proof assembly being formed on the first fool-proof member; the second fool-proof component is detachably arranged on the socket, and the second fool-proof combination is formed on the second fool-proof component.

In one possible design, the plug includes a first housing and a first connection terminal provided in the first housing, the first fool-proof member being detachably mounted on the first housing; the socket comprises a second shell and a second connecting terminal arranged in the second shell, and the second fool-proof piece is detachably arranged at one end of the second shell; the first connecting terminal and the second connecting terminal form plug-in running fit, the first shell and the second shell form plug-in running fit, the first fool-proof piece and the second fool-proof piece form guide plug-in fit when the first shell and the second shell start to plug in, and the first fool-proof piece and the second fool-proof piece are arranged at intervals along the opposite plug-in direction after the first shell and the second shell are plugged in place.

In one possible design, the first housing includes a first sleeve and a second sleeve, the second sleeve being disposed around the first sleeve, the first connection terminal being disposed in the first sleeve; the second shell comprises a third sleeve, and the second connecting terminal is arranged in the center of the third sleeve; the first fool-proof piece is arranged at one end of the first sleeve, and the second fool-proof piece is arranged at one end of the third sleeve; the first sleeve is insertable into the third sleeve, the third sleeve is insertable into the second sleeve, and an outer peripheral wall of the third sleeve is at least partially in a rotational fit with an inner peripheral wall of the second sleeve.

The beneficial effect of the electric connector that this application provided lies in: the embodiment of the application provides an electric connector, the one end of its plug is equipped with a set of first foolproof combination, the one end of socket is equipped with multiunit along circumference interval distribution's second foolproof combination in proper order, then after socket position is fixed, first foolproof combination on the plug can select to form foolproof cooperation with its second foolproof combination that is closest along circumference position under the prerequisite of guaranteeing that the pencil is placed naturally, that is, because each angle along circumference on the socket all is equipped with the second foolproof combination, need not to make first foolproof combination and second foolproof combination correspond pegging graft along opposite inserting direction with the rotatory great angle of plug, thereby can reduce the pencil and pull and twist reverse that bring because of the plug. Meanwhile, after the plug and the socket are oppositely plugged, the first foolproof combination and the second foolproof combination are arranged at intervals along the opposite plugging direction, the plug and the socket cannot be circumferentially limited, the plug can also be rotated relative to the socket, the wire harness can be further adjusted, the wire harness can be in a natural placing state after the plug and the socket are oppositely plugged, and the pulling phenomenon cannot occur. In addition, when the staff does not operate well in certain directions of the plug due to space limitation, the plug can be rotated to facilitate operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of a third generation electrical connector provided in an embodiment of the present application;

FIG. 2 is an analysis schematic diagram of a third generation electrical connector application scenario;

FIG. 3 is a second analysis schematic of a third generation electrical connector application scenario;

fig. 4 is a schematic perspective view of an electrical connector according to an embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view of the electrical connector of FIG. 4;

FIG. 6 is a schematic view of the plug of FIG. 4;

FIG. 7 is a schematic diagram of the socket of FIG. 4;

FIG. 8 is a schematic view of the guiding engagement of the first fool-proof member and the second fool-proof member of FIG. 5;

fig. 9 is an analysis schematic diagram of an application scenario of an electrical connector according to an embodiment of the present application;

fig. 10 is a schematic diagram of an application scenario of an electrical connector according to an embodiment of the present application.

Wherein, each reference sign in the figure:

100. a plug; 110. a first housing; 111. a first sleeve; 112. a second sleeve; 120. a first connection terminal; 200. a socket; 210. a second housing; 211. a third sleeve; 220. a second connection terminal; 300. a first fool-proof member; 310. a first foolproof combination; 311. a first fool-proof portion; 400. a second fool-proof member; 410. a second fool-proof combination; 411. a second fool-proof part; a1, a first included angle; a2, a second included angle; a3, a third included angle.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The electric connector is mainly used for high-voltage energy storage, an electric power connector, an electric automobile connector, an electric forklift connector, a communication power connector and the like, and comprises a socket and a plug, wherein the socket is generally fixed in position, and the plug can be in butt joint with the socket to realize mechanical connection and electric connection with the socket.

As the first generation product of electric connector, electric connector's plug and socket pass through the shaft hole and form the butt joint after, and the plug can also carry out 360 degrees rotations relatively to the socket, owing to be connected with the pencil on the plug, the plug can drive the pencil rotatory when rotatory, can adjust the position of pencil in a flexible way, can arrange the pencil in order for pencil overall arrangement is reasonable and occupy relatively less space, simultaneously makes pencil and plug connection's one end be in the nature state of placing as far as possible, thereby reduce the condition of pencil distortion, reduce the pencil and lead to the possibility that life-span descends because long-time in distortion state.

Along with the wide application of the electric connector, the following situation often occurs that a plurality of to-be-supplied devices are provided with sockets, and the sockets are provided with positive electrode sockets and negative electrode sockets. Normally, the positive electrode plug needs to be inserted into the positive electrode socket, and the negative electrode plug needs to be inserted into the negative electrode socket, and meanwhile, for distinguishing the positive electrode from the negative electrode, the positive electrode and the negative electrode can be distinguished through different colors. However, when the staff ignores the color distinction, or the staff is not known by the color blindness, or the non-professional staff is in butt joint of the plug and the socket, the negative plug is easily inserted into the positive socket, or the positive plug is inserted into the negative socket, so that the positive and negative poles are short-circuited, and the potential safety hazard of electricity utilization exists.

In order to solve the potential safety hazard caused by misplug of the positive electrode and the negative electrode of the electric connector, the industry professionals think of a plurality of solutions, the second generation electric connector is generated by the potential safety hazard, the industry professionals want to distinguish the positive electrode socket and the negative electrode plug through fool-proof design, specifically, the positive electrode socket and the negative electrode socket are both provided with a first fool-proof structure, and the positive electrode plug and the negative electrode plug are both provided with a second fool-proof structure, so that the positive electrode plug can only be butted with the positive electrode socket, the negative electrode plug can only be butted with the negative electrode socket, even if someone misplug the positive electrode plug to the negative electrode socket, the positive electrode plug cannot be matched and spliced with the negative electrode socket due to the fool-proof structure, and the fool-proof purpose is realized. However, the fool-proof structure is generally fool-proof formed by inserting and matching grooves and protruding blocks extending along the whole stroke of the plug and the socket in the opposite inserting direction, and once the grooves or protruding blocks are formed on the plug and the socket, circumferential limit is formed between the plug and the socket, and finally, the plug cannot be rotated by 360 degrees after the plug is in butt joint with the socket. In general, although the problem that the anode and the cathode are easy to misplug is solved by the scheme, the angle of the plug cannot be adjusted, the arrangement of the wire harness is affected, the occupied space of the wire harness cannot be adjusted, and the wire harness is likely to generate distortion.

Heretofore, in the field of electrical connectors, there has long been a constant incompatibility between 360 degree rotation of a plug and a socket and structural fool-proofing, i.e., fool-proofing is achieved by either the plug and socket being able to rotate 360 degrees and by virtue of colors to distinguish the mating relationship of the plug and socket, or fool-proofing is achieved by structural design but the plug and socket are not able to rotate 360 degrees. In actual use, the application occasion has higher requirements on fool-proof, the industry personnel can select the connector which has a fool-proof structure but the plug and the socket can not rotate by 360 degrees, the application occasion has higher requirements on the relative rotation of the plug and the socket, and the industry personnel can select the connector which has the plug and the socket and can rotate by 360 degrees but does not have the fool-proof structure.

In order to solve the problem of incompatibility of 360-degree rotation of the plug and the socket and structural foolproof, the inventor of the application has researched for many years and finally developed a third-generation electric connector which not only can realize foolproof of the anode and the cathode, but also can realize 360-degree rotation of the plug 1 and the socket 2 after opposite insertion so as to adjust a wire harness. The concrete structure is as follows: referring to fig. 1, an electrical connector includes a socket 2 and a plug 1, wherein the plug 1 and the socket 2 can form mechanical connection and electrical connection through plug-in fit; one end circumference of plug 1 is equipped with the lug 3 that a plurality of intervals set up, and the inboard circumference of one end of socket 2 is equipped with a plurality of recesses 4 that the interval set up, lug 3 and recess 4 one-to-one, after each lug 3 and recess 4 one-to-one that corresponds, plug 1 pushes into socket 2 in formation grafting cooperation to realize preventing slow-witted. In the whole stroke of the plug 1 and the socket 2, when the plug is positioned in the opposite-plug process, the convex blocks 3 and the concave grooves 4 are arranged at intervals in the opposite-plug direction, so that the plug 1 and the socket 2 can realize 360-degree relative rotation after the opposite-plug is completed. The difficulty of inserting is improved only through the lug 3 and the groove 4, and when the lug 3 and the groove 4 do not correspond, the inserting cannot be smoothly performed, so that foolproof is realized, for example, when a person inserts the positive electrode plug into the negative electrode socket by mistake, the lug 3 of the positive electrode plug cannot be matched with the groove 4 of the negative electrode socket in the inserting process, and the foolproof purpose is realized. There is no particular requirement for the number of lugs 3 and recesses 4 throughout the design process, but only the conditional restrictions that the lugs 3 and recesses 4 need to be correspondingly matched for the mating action.

The third generation electric connector not only can realize positive and negative pole foolproof, but also can realize that the plug 1 and the socket 2 can rotate 360 degrees after opposite inserting so as to adjust the wire harness. However, after the third generation of electrical connectors has been applied for a period of time, the inventor has found a new problem, under some special situations, because the position of the socket 2 is fixed, the position of the groove 4 on the socket 2 is also fixed, when the plug 1 is plugged, the plug 1 can be plugged into the socket 2 only when the protruding block 3 on the plug 1 corresponds to the groove 4 on the socket 2 one by one, in the process of corresponding the protruding block 3 on the plug 1 and the groove 4 on the socket 2 one by one, the plug 1 needs to be rotated to the position corresponding to the protruding block 3 and the groove 4, and in the process of rotation, the plug 1 needs to be twisted together with the wire harness, when the space where the wire harness is located is narrow or the wire harness is short, the wire harness is easy to deform seriously, especially, the position where the plug 1 is connected with the wire harness, namely, the position on the wire harness near the plug 1. Specifically, when the space where the wire harness is located is relatively narrow, when the operator holds the plug 1 and the socket 2 in a butt joint, the operator not only needs to twist the wrist to adjust the alignment of the protruding block 3 of the plug 1 and the groove 4 of the socket 2, but also needs to overcome the limitation of the space to the wrist activity, so that the operation is inconvenient and the comfort level is poor. When the wire harness is short, an operator holds the plug 1 and is in butt joint with the socket 2, the operator not only needs to twist the wrist to adjust the alignment of the protruding block 3 of the plug 1 and the groove 4 of the socket 2, but also needs to overcome the torsion of the wire harness to the plug 1, so that the torsion deformation of the wire harness is serious.

For convenience of description, it is assumed that in the first application scenario shown in fig. 2, the positive electrode socket 2a is on the left side, the negative electrode socket 2b is on the right side, and the middle is electrically connected to the positive electrode plug 1a and the negative electrode plug 1b through a wire harness 5 and opposite ends thereof. Third generation electrical connectors are prone to several common problems: 1. when a worker mistakenly fixes the positive electrode socket 2a in a manner that the groove 4 faces to the left, the positive electrode plug 1a needs to be rotated to a position corresponding to the groove 4 when the positive electrode plug 1a is plugged, and the positive electrode plug 1a and the left end of the wire harness 5 need to be twisted together in the rotating process, so that the left end of the wire harness 5 is twisted to a state as shown in fig. 2, and the wire harness 5 is severely twisted and deformed; 2. when the space of the electric cabinet for installing the positive electrode socket 2a and the negative electrode socket 2b is limited, the positive electrode socket 2a is just positioned at the left side frame position of the electric cabinet, a worker can only stand on the right side of the electric cabinet, and stretches hands (the hands are shown by the broken line of fig. 2) into the electric cabinet from the right side of the electric cabinet, then the wrist is required to be rotated so that the wrist corresponds and inserts the protruding block 3 of the positive electrode plug 1a with the groove 4 of the positive electrode socket 2a in a narrow space, the operation is inconvenient, the comfort is poor, the observation is inconvenient, and the alignment is difficult; 3. when a worker misinstalls the positive electrode socket 2a in a manner that the groove 4 faces to the left side and misinstalls the negative electrode socket 2b in a manner that the groove 4 faces to the right side, the opposite ends of the wire harness 5 are seriously distorted when being spliced, and when the wire harness 5 is not long enough, the middle of the wire harness 5 is pulled, so that the wire harness 5 is irrecoverably deformed and even broken; 4. since the situation in the 3 rd point is easy to occur, the inventor designs the wire harness 5 with more redundant length during design, which eventually leads to the waste of the wire harness 5 in length, and meanwhile, when the positions of the grooves 4 in the positive electrode socket 2a and the negative electrode socket 2b are installed correctly (as shown in fig. 3), the wire harness 5 is piled and wound between the two sockets due to overlong length, which occupies space, affects the appearance and has multiple deformation affecting service life; 5. as shown in fig. 3, when the positions of the grooves 4 on the positive electrode socket 2a and the negative electrode socket 2b are installed correctly, the positive electrode socket 2a and the negative electrode socket 2b which are arranged side by side are connected by the wire harness 5, and when the positive electrode plug 1a and the negative electrode plug 1b at two opposite ends of the wire harness 5 are required to be plugged with the positive electrode socket 2a at the upper left side and the negative electrode socket 2b at the lower right side respectively, the distance between the two sockets is relatively increased, and the positions of the grooves 4 are fixed, the positive electrode plug 1a and the negative electrode plug 1b are required to be rotated to correspondingly plug the convex blocks 3 and the grooves 4, so that the middle part of the wire harness 5 has a pulling force on two opposite ends of the wire harness 5, so that the two ends of the wire harness 5 are twisted and deformed, and the service life is influenced.

In order to solve the above technical problems, after long-time research, the applicant innovates on the basis of the third-generation connector product which is independently developed by the applicant, and finally, an electric connector is developed, and through a special foolproof structure design, the plug 100 is not limited by the position of the foolproof structure of the socket 200 any more, and can be inserted into the socket 200 from a plurality of different angles, so that the situation that the wire harness is pulled and twisted due to the need of rotating angle when the plug 100 is inserted into the socket 200 is reduced, and 360-degree rotation can be realized after the plug 100 is inserted into the socket 200, and the adjustment of the wire harness is realized.

Referring to fig. 4 to 8, an electrical connector according to an embodiment of the present application will be described. The electrical connector comprises a socket 200 and a plug 100, the plug 100 and the socket 200 can form mechanical connection and electrical connection through plug-in fit; one end of the plug 100 is provided with a first foolproof combination 310, one end of the socket 200 is provided with a plurality of groups of second foolproof combinations 410 which are sequentially distributed at intervals along the circumferential direction of the socket 200, the first foolproof combination 310 can form guiding fit with any group of second foolproof combinations 410 to realize foolproof and guide the plug 100 to be inserted into the socket 200, and the first foolproof combination 310 and the second foolproof combination 410 are arranged at intervals along the opposite inserting direction after the plug 100 and the socket 200 are opposite inserted, so that the plug 100 and the socket 200 can realize 360-degree relative rotation.

The first foolproof assembly 310 and the second foolproof assembly 410 are arranged at intervals along the opposite inserting direction after the plug 100 and the socket 200 are opposite inserted, so that the first foolproof assembly 310 and the second foolproof assembly 410 are staggered after the opposite insertion is completed, and thus, when the plug 100 and the socket 200 relatively rotate, the first foolproof assembly 310 and the second foolproof assembly 410 do not interfere with each other to limit the rotation between the plug 100 and the socket 200.

The one end of the plug 100 refers to the end of the plug 100 that is used to form an opposite plug with the socket 200, that is, the end that faces the socket 200 when the plug 100 is ready to be opposite plug with the socket 200. The one end of the socket 200 refers to the end of the socket 200 that is used to form an opposite plug with the plug 100, that is, the end of the socket 200 that faces the plug 100 when the plug 100 is ready to be opposite to the socket 200.

One end of the socket 200 is provided with a plurality of groups of second fool-proof assemblies 410, and specifically, the number of the second fool-proof assemblies 410 may be three groups, four groups, five groups or more than five groups, which is not limited only herein.

Because one end of the plug 100 is provided with a group of first foolproof combinations 310, and one end of the socket 200 is provided with a plurality of groups of second foolproof combinations 410 which are sequentially distributed at intervals along the circumferential direction, when the position of the socket 200 is fixed, the first foolproof combinations 310 on the plug 100 can be selected to form foolproof cooperation with the second foolproof combinations 410 closest to the first foolproof combinations 410 along the circumferential direction on the premise of ensuring that the wire harness is naturally placed, that is, because each angle on the socket 200 along the circumferential direction is provided with the second foolproof combinations 410, the plug 100 does not need to be rotated by a larger angle to enable the first foolproof combinations 310 and the second foolproof combinations 410 to be correspondingly inserted in the opposite insertion direction, so that pulling and torsion of the wire harness caused by rotation of the plug 100 can be reduced. Meanwhile, after the plug 100 and the socket 200 are plugged, the first foolproof assembly 310 and the second foolproof assembly 410 are arranged at intervals along the plugging direction, so that the plug 100 and the socket 200 cannot be circumferentially limited, the plug 100 can also rotate 360 degrees relative to the socket 200, and the wire harness can be further adjusted, so that the wire harness can be in a natural placing state after the plug 100 and the socket 200 are plugged, and the pulling phenomenon cannot occur. In addition, when the operator does not operate well in some directions of the plug 100 due to space limitation, the plug 100 may be rotated to facilitate operation.

In general, the present application solves 5 technical problems that exist in third generation electrical connectors. Specifically, referring to fig. 9, corresponding to the first problem, since the second foolproof assemblies 410 are distributed in a circumferential direction of the socket 200 in the present application, there is always one second foolproof assembly 410 corresponding to the first foolproof assembly 310 on the plug 100, there is no fear that a worker installs the second foolproof assembly 410 in an improper position, and no need to rotate the plug 100 by a larger angle during installation, so as to reduce the distortion of the wire harness 5; corresponding to the second problem, when the space of the electric cabinet is limited, the first foolproof assembly 310 on the plug 100 can be in plug-in fit with the second foolproof assembly 410 on the socket 200, which is close to the left side, so that the wrist is not required to be twisted, the wire harness 5 is not required to be pulled, the operation is convenient, the observation is convenient, and the operation space is enough; 3. corresponding to the third problem and the fourth problem, as the second foolproof assemblies 410 are distributed in the circumferential direction of the sockets 200 in the same manner as the first problem, the two sockets 200 are not required to be installed in the same direction, only the proper second foolproof assemblies 410 are required to be selected for plugging fit, the wire harness 5 is not required to be twisted, the wire harness is not required to be designed longer, and the waste of the wire harness is not caused; in response to the fifth problem, referring to fig. 10, since two diagonally-arranged sockets 200 are each provided with a plurality of second foolproof assemblies 410 along the circumferential direction, the first foolproof assembly 310 on the positive electrode plug 100 can be mated with the second foolproof assembly 410 on the positive electrode socket 200 on the upper left side facing the right side in a plugging manner, and the first foolproof assembly 310 on the negative electrode plug 100 is mated with the second foolproof assembly 410 on the negative electrode socket 200 on the lower right side facing the left side in a plugging manner, so that the wire harness can reduce bending as much as possible during the plugging process, and the specific connection situation is shown in fig. 10. Further, after the plug 100 and the socket 200 are plugged, the plug 100 may be further rotated, for example, the positive plug 100 and the negative plug 100 may be rotated to be substantially in a straight line, so that the wire harness is in a substantially straight line state, the wire harness is in a natural state, and the occurrence of distortion is reduced.

In one embodiment, referring to fig. 7 and 8, the second fool-proof assemblies 410 are equally spaced along the periphery Xiang Yici of the socket 200, for example, when three groups of the second fool-proof assemblies 410 are disposed on the socket 200, an included angle between two adjacent groups of the second fool-proof assemblies 410 is 120 degrees; when four groups of second foolproof assemblies 410 are provided on the socket 200, the included angle between two adjacent groups of second foolproof assemblies 410 is 90 degrees, and so on, the larger the number of the second foolproof assemblies 410 is, the smaller the included angle between two adjacent groups of second foolproof assemblies 410 is, and the plug 100 can realize the opposite insertion with the socket 200 at a smaller rotation angle, that is, the wire harness is in a state closer to nature during opposite insertion. It will be appreciated that, in other embodiments of the present application, the second fool-proof assemblies 410 may also be distributed at unequal intervals along the circumference of the socket 200, for example, two second fool-proof assemblies 410 are spaced by 90 degrees, and the other two second fool-proof assemblies 410 are spaced by 100 degrees, which is not limited only as long as the spacing is reasonable in design, but also the rotation angle required when the plug 100 is docked can be reduced.

It should be noted that, the included angle between the two sets of second fool-proof assemblies 410 refers to the included angle between the center lines of the two sets of second fool-proof assemblies 410 along the circumferential direction.

In an embodiment, referring to fig. 7 and 8, four groups of second foolproof assemblies 410 are disposed on the socket 200 at equal intervals along the periphery Xiang Yici thereof, that is, the included angle between two adjacent groups of second foolproof assemblies 410 is 90 degrees, for example, in fig. 7, a group of second foolproof assemblies 410 are disposed in the 0-degree direction, 90-degree direction and 180-degree direction of the socket 200 in 270-degree directions respectively, so that the first foolproof assemblies 310 on the plug 100 connected by the wire harness in a natural state correspond to the second foolproof assemblies 410 in which direction, and only the plug 100 is required to be rotated by an angle of less than 45 degrees, so that the first foolproof assemblies 310 and the second foolproof assemblies 410 can be abutted without generating larger torsion force on the wire harness. Meanwhile, no matter in which direction of the socket 200 the worker is, the worker can easily insert the plug 100 into the socket 200 without causing inconvenience in the opposite insertion due to the direction problem and the space limitation problem. It will be appreciated that in other embodiments of the present application, the number of the second fool-proofing combinations 410 may also be three, five or more, and is not limited herein.

In one embodiment, referring to fig. 6 to 8, the first fool-proof assembly 310 includes at least two first fool-proof portions 311 sequentially spaced apart along the circumference of the plug 100. The second fool-proof assembly 410 includes at least two second fool-proof portions 411 sequentially spaced apart along the circumference of the socket 200. The number of the first fool-proof parts 311 is equal to that of the second fool-proof parts 411, and each first fool-proof part 311 and each second fool-proof part 411 can form plug-in guiding coordination one by one. When the positive and negative poles need to be distinguished, the fool-proofing between the positive pole and the negative pole can be realized by changing the included angle between the adjacent first fool-proofing parts 311, for example, the included angle between the adjacent two first fool-proofing parts 311 in the positive pole socket 200 is 45 degrees, and the included angle between the adjacent two first fool-proofing parts 311 in the negative pole socket 200 is 60 degrees, so that the distinction between the positive and negative pole plug 100 and the socket 200 can be realized.

Here, the included angle between the adjacent two first foolproof portions 311 refers to an included angle between the center lines of the adjacent two first foolproof portions 311 along the circumferential direction.

In one embodiment, referring to fig. 6 to 8, the first fool-proof assembly 310 includes two first fool-proof portions 311 that are spaced apart along the circumference of the plug 100; the second fool-proof assembly 410 includes two second fool-proof portions 411 spaced apart along the circumferential direction of the socket 200. In this embodiment, fool-proof guiding is formed by one-to-one correspondence between the two first fool-proof portions 311 and the two second fool-proof portions 411, which can realize distinction of positive and negative electrodes by adjusting the included angle between the two first fool-proof portions 311, meanwhile, the number of the first fool-proof portions 311 can be reduced, the structure manufacturing cost of the first fool-proof combination 310 is simplified, and meanwhile, the problem that the manufacturing precision of each first fool-proof portion 311 and each second fool-proof portion 411 needs to be higher to meet one-to-one correspondence grafting between each first fool-proof portion 311 and each second fool-proof portion 411 due to the fact that the number of the first fool-proof portions 311 is large can be reduced.

It will be appreciated that, in other embodiments of the present application, the first fool-proof assembly 310 may also include three or four first fool-proof portions 311, and the second fool-proof assembly 410 may also include three or four second fool-proof portions 411, which are not limited herein.

In one embodiment, referring to fig. 8, a first included angle A1 is formed between two adjacent second fool-proofing parts 411, and two adjacent second fool-proofing parts 411 in two adjacent second fool-proofing combinations 410 have a second included angle A2, where the first included angle A1 is not equal to the second included angle A2. In this embodiment, the first included angle A1 and the second included angle A2 are set to be different, so that the two first foolproof portions 311 can only form a foolproof fit with the two second foolproof portions 411 in the same group of second foolproof combinations 410, but the two first foolproof portions 311 cannot form a foolproof fit with the two adjacent second foolproof portions 411 in the two adjacent second foolproof combinations 410, for example, the two first foolproof portions 311 can be matched with the two a second foolproof portions 411, but cannot be matched with the adjacent a second foolproof portions 411 and B second foolproof portions 411, so that the size of the first included angle A1 can be adjusted according to the actual requirement under the condition that the included angle between the two adjacent second foolproof combinations 410 is unchanged, so as to realize the distinction between positive and negative poles.

In one embodiment, referring to fig. 8, a third included angle A3 is formed between two adjacent second foolproof assemblies 410, and the first included angle A1 is smaller than the third included angle A3, that is, the first included angle A1 between two adjacent second foolproof assemblies 411 can be adjusted according to the positive and negative polar region requirements, but the first included angle A1 must be ensured to be smaller than the third included angle A3. Specifically, when four groups of the second foolproof assemblies 410 are disposed on the socket 200, and each group of the second foolproof assemblies 410 includes two second foolproof portions 411, the third included angle A3 is 90 degrees, and the sum of the first included angle A1 and the second included angle A2 is 90 degrees. When the first included angle A1 is larger than 45 degrees, the second included angle A2 is smaller than 45 degrees; when the first included angle A1 is smaller than 45 degrees, the second included angle A2 is larger than 45 degrees, and in general, in order to realize the distinction between the anode and the cathode, the first included angle A1 cannot be set to 45 degrees.

In general, in the embodiment of the present application, when the positive and negative electrodes need to be distinguished, the first method may be implemented by changing the size of the first included angle A1 between the adjacent first foolproof portions 311 to implement foolproof between the positive electrode and the negative electrode, for example, the first included angle A1 between the adjacent two first foolproof portions 311 in the positive electrode socket 200 is 45 degrees, and the first included angle A1 between the adjacent two first foolproof portions 311 in the negative electrode socket 200 is 60 degrees, so that distinction between the positive and negative electrode plug 100 and the socket 200 may be implemented; second, the third included angle A3 between two adjacent second foolproof assemblies 410 may be changed, for example, the third included angle A3 between two adjacent second foolproof assemblies 410 in the positive electrode socket 200 is 90 degrees, and the third included angle A3 between two adjacent second foolproof assemblies 410 in the negative electrode socket 200 is 80 degrees, so that the positive and negative electrode distinction can be also realized.

For those skilled in the art, if a plurality of fool-proofing parts are to be provided, the solid thinking is that the fool-proofing parts are distributed at equal intervals around the socket 200, and the result is that the fool-proofing of the anode and the cathode can be achieved only by changing the number of fool-proofing parts and the angles of the adjacent fool-proofing parts. The inventor breaks the conventional thinking, and by setting the first included angle A1 between two adjacent second foolproof parts 411 in the same group of second foolproof combinations 410 to be different from the third included angle A3 between two adjacent second foolproof combinations 410, the positive-negative electrode distinction can be realized by changing the first included angle A1, the positive-negative electrode distinction can be realized by changing the third included angle A3, and even the positive-negative electrode distinction can be realized by changing the first included angle A1 and the third included angle A3 at the same time, which can consider more dimensions.

In one embodiment, referring to fig. 6 to 8, the first fool-proof portion 311 is a protruding strip extending along the opposite direction, the second fool-proof portion 411 is a slot extending along the opposite direction, and when the plug 100 is docked with the socket 200, the two protruding strips are in one-to-one mating engagement with the two slots to guide the plug 100 to be inserted into the socket 200. Specifically, because socket 200 position is fixed, plug 100 is the activity side, and the sand grip protrusion on the plug 100 exposes, and has a plurality of slots on the socket 200 to distribute, and the staff of being convenient for is corresponding to insert the sand grip in the slot that corresponds intuitively, and on the other hand, the formation degree of difficulty of sand grip is bigger for the formation degree of difficulty of recess, and this embodiment sets up the quantity of sand grip relatively less, can reduce the preparation degree of difficulty of first fool-proof combination 310. It can be understood that, in other embodiments of the present application, the first fool-proof portion 311 may be a slot extending along the opposite inserting direction, and correspondingly, the second fool-proof portion 411 is a protruding strip extending along the opposite inserting direction, which is not limited herein.

In one embodiment, referring to fig. 4 to 7, the electrical connector includes a first fool-proof member 300 and a second fool-proof member 400, the first fool-proof member 300 is detachably mounted on the plug 100, and the first fool-proof assembly 310 is formed on the first fool-proof member 300; the second fool-proof member 400 is detachably mounted on the socket 200, and the second fool-proof assembly 410 is formed on the second fool-proof member 400. In this embodiment, the first fool-proof member 300 and the second fool-proof member 400 are detachably mounted on the plug 100 and the socket 200, and the first fool-proof assembly 310 and the second fool-proof assembly 410 are formed on the first fool-proof member 300 and the second fool-proof member 400, respectively, so that when the first fool-proof portion 311 and the second fool-proof portion 411 are damaged due to frequent misplacement and frequent erroneous abutment due to misalignment, the first fool-proof member 300 or the second fool-proof member 400 can be detached and replaced, so as to improve the service life of the whole electrical connector. In addition, since the structure of the plug 100 can be simplified by disposing the first fool-proof member 300 separately from the plug 100, the structure of the socket 200 can be simplified by disposing the second fool-proof member 400 separately from the socket 200. It will be appreciated that in other embodiments of the present application, the first fool-proof assembly 310 may be formed directly on the plug 100, and the second fool-proof assembly 410 may be formed directly on the socket 200, which is not limited herein.

In one embodiment, referring to fig. 5 to 7, the plug 100 includes a first housing 110 and a first connection terminal 120 disposed in the first housing 110, and the first fool-proof member 300 is detachably mounted on the first housing 110; the socket 200 includes a second housing 210 and a second connection terminal 220 disposed in the second housing 210, and the second fool-proof member 400 is detachably mounted on one end of the second housing 210; the first connection terminal 120 and the second connection terminal 220 form a plugging and rotating fit, the first housing 110 and the second housing 210 form a plugging and rotating fit, the first fool-proof member 300 and the second fool-proof member 400 form a guiding plugging and matching when the first housing 110 and the second housing 210 start to be plugged, and the first fool-proof member 300 and the second fool-proof member 400 are arranged at intervals along the opposite plugging direction after the first housing 110 and the second housing 210 are plugged in place.

It should be noted that, the first connection terminal 120 and the second connection terminal 220 form a plug-in and rotation fit means that the first connection terminal 120 and the second connection terminal 220 can be plug-in fit with each other, and the first connection terminal 120 and the second connection terminal 220 can rotate relatively after plug-in fit. The first housing 110 and the second housing 210 form a plug-in and rotation fit, which means that the first housing 110 and the second housing 210 can be plug-in fit with each other, and the first housing 110 and the second housing 210 can rotate relatively after being plug-in fit.

In addition, the first fool-proofing member 300 and the second fool-proofing member 400 are respectively disposed at one end of the first housing 110 and one end of the second housing 210, and when the first housing 110 and the second housing 210 start to be plugged, the first fool-proofing member 300 and the second fool-proofing member 400 can be inserted into the second housing 210 through the first fool-proofing portion 311 and the second fool-proofing portion 411 in a guiding manner so as to guide the first housing 110 to be inserted into the second housing 210, but as the depth of the first housing 110 and the second housing 210 to be plugged into each other increases, the first fool-proofing portion 311 and the second fool-proofing portion 411 are gradually staggered from each other along the plugging direction and are disposed at intervals along the plugging direction, at this time, no interaction is formed between the first fool-proofing portion 311 and the second fool-proofing portion 411, and no circumferential limit is formed on the first housing 110 and the second housing 210, so that the first housing 110 and the second housing 210 can relatively rotate 360 degrees, and the plug 100 and the socket 200 can not only realize fool-proofing, but also realize 360-degree rotation on the basis so as to realize wire harness adjustment.

In one embodiment, referring to fig. 5 to 7, the first housing 110 includes a first sleeve 111 and a second sleeve 112, the second sleeve 112 is disposed around the first sleeve 111, and the first connection terminal 120 is disposed in the first sleeve 111; the second housing 210 includes a third sleeve 211, and the second connection terminal 220 is provided at the center of the third sleeve 211; the first fool-proof member 300 is disposed on one end of the first sleeve 111, and the second fool-proof member 400 is disposed on one end of the third sleeve 211; the first sleeve 111 can be inserted into the third sleeve 211, the third sleeve 211 can be inserted into the second sleeve 112, and an outer peripheral wall of the third sleeve 211 at least partially forms a rotational fit with an inner peripheral wall of the second sleeve 112. When the insert is formed, the first fool-proof member 300 is located at the bottom of the third sleeve 211, the second fool-proof member 400 is located at the bottom between the second sleeve 112 and the first sleeve 111, and the relative rotation can be formed by the rotation fit of the second sleeve 112 and the third sleeve 211.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims

1. An electrical connector comprising a socket and a plug, the plug and the socket being capable of forming a mechanical and electrical connection by a plug-in fit; one end of the plug is provided with a first fool-proof combination, one end of the socket is provided with a plurality of groups of second fool-proof combinations which are sequentially distributed at intervals along the circumferential direction of the socket, the first fool-proof combination can form guide fit with any group of second fool-proof combinations to realize fool-proof and guide the plug to be inserted into the socket, and the first fool-proof combination and the second fool-proof combination are arranged at intervals along the opposite inserting direction after the plug and the socket are opposite to each other, so that the plug and the socket can realize 360-degree relative rotation;

the first fool-proof combination comprises at least two first fool-proof parts which are sequentially distributed at intervals along the circumferential direction of the plug, the second fool-proof combination comprises at least two second fool-proof parts which are sequentially distributed at intervals along the circumferential direction of the socket, and each first fool-proof part and each second fool-proof part can form plug-in fit in a one-to-one correspondence manner;

a first included angle is formed between every two adjacent second fool-proof parts, a second included angle is formed between every two adjacent second fool-proof parts in every two adjacent second fool-proof combinations, a third included angle is formed between every two adjacent second fool-proof combinations, the first included angle is unequal to the second included angle, and the first included angle is smaller than the third included angle;

distinguishing a positive electrode socket from a negative electrode socket by changing the size of the first included angle;

or, the size of the third included angle is changed to distinguish the positive electrode socket from the negative electrode socket.

2. The electrical connector of claim 1, wherein each of the second foolproof assemblies is sequentially equally spaced apart along a circumference of the receptacle;

3. The electrical connector of claim 1, wherein four sets of said second foolproof assemblies are provided on said receptacle equally spaced along its perimeter Xiang Yici.

4. An electrical connector as in any one of claims 1 to 3 wherein the first foolproof assembly comprises two first foolproof portions spaced apart along the circumference of the plug; the second fool-proof combination comprises two second fool-proof parts which are distributed at intervals along the circumferential direction of the socket.

5. The electrical connector of any one of claims 1 to 3, wherein the first fool-proof portion is a protrusion extending in the mating direction, and the second fool-proof portion is a slot extending in the mating direction; or, the first fool-proof part is a slot extending along the opposite inserting direction, and the second fool-proof part is a convex strip extending along the opposite inserting direction.

6. The electrical connector of any one of claims 1 to 3, wherein the electrical connector comprises a first fool-proof member and a second fool-proof member, the first fool-proof member being detachably mounted on the plug, the first fool-proof assembly being formed on the first fool-proof member; the second fool-proof component is detachably arranged on the socket, and the second fool-proof combination is formed on the second fool-proof component.

7. The electrical connector of claim 6, wherein the plug includes a first housing and a first connection terminal disposed in the first housing, the first fool-proof member being removably mounted to the first housing; the socket comprises a second shell and a second connecting terminal arranged in the second shell, and the second fool-proof piece is detachably arranged at one end of the second shell; the first connecting terminal and the second connecting terminal form plug-in running fit, the first shell and the second shell form plug-in running fit, the first fool-proof piece and the second fool-proof piece form guide plug-in fit when the first shell and the second shell start to plug in, and the first fool-proof piece and the second fool-proof piece are arranged at intervals along the opposite plug-in direction after the first shell and the second shell are plugged in place.

8. The electrical connector of claim 7, wherein the first housing comprises a first sleeve and a second sleeve disposed about the first sleeve, the first connection terminal being disposed in the first sleeve; the second shell comprises a third sleeve, and the second connecting terminal is arranged in the center of the third sleeve; the first fool-proof piece is arranged at one end of the first sleeve, and the second fool-proof piece is arranged at one end of the third sleeve; the first sleeve is insertable into the third sleeve, the third sleeve is insertable into the second sleeve, and an outer peripheral wall of the third sleeve is at least partially in a rotational fit with an inner peripheral wall of the second sleeve.