CN220492347U - Plug and connector - Google Patents

Abstract

The application discloses a plug and a connector. The plug comprises: the plug component is provided with an accommodating space on the outer wall and is used for being inserted with the socket; an elastic member accommodated in the accommodation space; the locking ring, the locking ring includes ring body, arch, trip and elasticity auxiliary structure, the arch the trip with elasticity auxiliary structure is all located on the internal surface of ring body, the trip with the integrative setting of ring body, the trip with elasticity auxiliary structure interval sets up, the ring can detachably cover is established on the plug part, the arch stretches into in the accommodation space, the elastic component elasticity supports and holds between protruding with accommodation space's internal surface, the trip be used for the block in the draw-in groove of socket, elasticity auxiliary structure is used for the trip block is in the draw-in groove with the socket supports when holding.

Description

Plug and connector

Technical Field

The present disclosure relates to the field of connectors, and in particular, to a plug and a connector.

Background

The connector comprises a connector plug (which can be called plug for short) and a connector socket (which can be called socket for short), and can be widely applied to the fields of consumer electronics, industry, traffic and the like of various types of vehicles, communication, computers and the like. The applicable vehicles of various types comprise new energy automobiles, electric bicycles, electric motorcycles, electric scooters and the like, and the connector plug and the connector socket are used as key parts thereof, can bridge communication between circuits, enable current to flow, and enable the circuits to achieve the reservation function.

In the connector, a clamping groove is arranged on a socket, a locking ring is arranged on a plug, and a clamping point is arranged on the inner surface of the locking ring. In the locking process of the plug and the socket, the locking point of the plug is screwed into or out of the corresponding clamping groove of the socket through the rotation of the locking ring, so that the locking and unlocking functions are realized. However, since the plug is locked with the socket only through the clamping point, when the plug and the socket are plugged, under the action of external force, for example, the wire harness of the plug is stressed, the plug body is stressed, so that the plug and the socket shake in the direction beyond the stressed direction, the plug and/or the socket can be damaged by the plug terminals, and even the plug terminals are burnt out in the use due to the overlarge resistance generated by the damage of the plug terminals, so that the safety and the reliability of the connector are affected.

Disclosure of Invention

In order to solve the above problems, the present application provides a plug and a connector capable of reducing shaking after insertion.

In a first aspect, the present application provides a plug comprising:

the plug component is provided with an accommodating space on the outer wall and is used for being inserted with the socket;

an elastic member accommodated in the accommodation space;

the locking ring, the locking ring includes ring body, arch, trip and elasticity auxiliary structure, the arch the trip with elasticity auxiliary structure is all located on the internal surface of ring body, the trip with the integrative setting of ring body, the trip with elasticity auxiliary structure interval sets up, the ring can detachably cover is established on the plug part, the arch stretches into in the accommodation space, the elastic component elasticity supports and holds between protruding with accommodation space's internal surface, the trip be used for the block in the draw-in groove of socket, elasticity auxiliary structure is used for the trip block is in the draw-in groove with the socket supports when holding.

In one possible implementation manner, the elastic auxiliary structure comprises a movable piece and a supporting bump, and the movable piece is movably connected with the ring body; the supporting protruding block is protruding to be located the movable part towards one side of the center of ring body, supporting protruding block is used for with the socket supports when the draw-in point block in the draw-in groove.

In one possible implementation manner, the movable piece includes a fixed end and a free end, which are disposed along an axial direction of the ring body, the fixed end is fixedly connected with the ring body, and the free end can move relative to the ring body with the fixed end as a fulcrum; the supporting protruding block is protruding to be located the movable part towards one side of the center of ring body, supporting protruding block is used for with the socket is in radial butt of catch when the draw-in point block in the draw-in groove.

In a possible implementation manner, the ring body includes a first end face and a second end face which are oppositely arranged along the axial direction of the ring body, the inner surface of the ring body is provided with a groove along the axial direction of the ring body, the groove penetrates through the first end face, the movable piece is accommodated in the groove, two sides of the movable piece along the circumferential direction of the ring body are both in clearance with the inner wall of the groove, the abutting protruding block includes a first portion and a second portion which are connected along the axial direction of the ring body, the first portion is arranged at one end, close to the first end face, of the abutting protruding block, the thickness of the first portion is smaller than that of the second portion, the first portion is used for contacting with the socket in the plug-socket opposite insertion process, and the second portion is used for abutting against the lock ring in the radial direction of the socket when the clamping point is clamped in the clamping groove.

In one possible implementation, the thickness of the first portion increases from the first end face toward the second end face in the axial direction of the ring body, and the length of the first portion in the circumferential direction of the ring body increases from the first end face toward the second end face.

In one possible implementation manner, the first portion includes a first inclined plane, a second inclined plane and a third inclined plane, the first inclined plane and the inner surface of the ring body where the first inclined plane is located form a first included angle, the third inclined plane and the inner surface of the ring body where the third inclined plane is located form a second included angle, and the first included angle and the second included angle are acute angles.

In a possible implementation manner, the elastic auxiliary structure further includes an elastic element, the movable element is slidably connected with the ring body along an axial direction of the ring body, the elastic element is connected between the movable element and the ring body, and the elastic element can deform along the axial direction of the ring body, so that the supporting protruding block supports against the socket along the axial direction of the ring body when the clamping point is clamped in the clamping groove.

In one possible implementation manner, the ring body further comprises a sliding groove and a limiting part, the sliding groove penetrates through the end face of the ring body along the axial direction of the ring body, the limiting part is convexly arranged on the inner surface of the ring body, the movable part further comprises a tile body and a connecting part which is convexly arranged on one side of the tile body, which faces the sliding groove, a limiting groove which is axially arranged along the ring body is formed in the tile body, the limiting part is slidably arranged in the limiting groove in a penetrating mode, and the connecting part is slidably connected with the sliding groove.

In a possible implementation manner, the plug component comprises a mounting body, a plug rubber core, a plurality of plug opposite-plug terminals and a sealing ring, one end of the plug rubber core is fixed on the mounting body, the plug opposite-plug terminals are fixedly arranged on the plug rubber core in a penetrating mode, the sealing ring is sleeved on the outer peripheral surface of the plug rubber core, the sealing ring axially comprises a first fixing portion and a second fixing portion which are fixedly connected, the outer diameter of the first fixing portion is smaller than that of the second fixing portion, so that a step surface is formed, the step surface is used for propping against a socket axially along the sealing ring, and sealing ribs are convexly arranged on the outer surface of the first fixing portion and used for propping against the socket radially along the sealing ring.

In a second aspect, the present application further provides a connector, including a socket and a plug according to the first aspect, the socket is provided with a clamping groove, when a clamping point of the plug is clamped in the clamping groove, the plug component is in butt joint with the socket, and an elastic auxiliary structure of the plug abuts against the socket.

The utility model provides a plug and connector, plug and socket lock through the stuck point on the catch, when the stuck point block in the draw-in groove, because elasticity auxiliary structure offsets with the socket for elasticity auxiliary structure and socket in close contact are favorable to reducing clearance and the amount of shaking between plug and the socket, thereby have improved the fail safe nature of plug and connector.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in 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 a schematic perspective view of a connector according to an embodiment of the present disclosure when a plug and a socket are not plugged together.

Fig. 2 is a perspective view of the connector of fig. 1 from another perspective.

Fig. 3 is a perspective view of yet another view of the connector shown in fig. 1.

Fig. 4 is a perspective view of a plug of the connector shown in fig. 1.

Fig. 5 is a perspective view of the plug removal lock ring.

Fig. 6 is a cross-sectional view of the plug.

Fig. 7 is an exploded perspective view of a plug according to an embodiment of the present application.

Fig. 8 is a schematic perspective view of a plug rubber core according to an embodiment of the present disclosure.

Fig. 9 is a side view and a partial enlarged schematic view of the plug shown in fig. 8.

Fig. 10 is a schematic perspective assembly of the mounting body, plug rubber core and seal ring.

Fig. 11 is a schematic perspective view of the seal ring.

Fig. 12 is a top view of the seal ring.

Fig. 13 is a side view of a seal ring and an enlarged schematic view of a partial area thereof.

Fig. 14 is a further perspective assembly schematic view of the mounting body, plug rubber core and seal ring.

Fig. 15 is a further perspective assembly schematic of the plug.

Fig. 16a is a schematic perspective view of the locking ring.

Fig. 16b is a schematic view in radial cross section of the plug and receptacle assembled together.

Fig. 17 is a cross-sectional view of the plug member with the lock ring rotated clockwise.

Fig. 18 is a cross-sectional view of the plug member with the locking ring rotated counterclockwise.

Fig. 19 is a perspective view of another view of the locking collar.

Fig. 20 is a perspective view of yet another view of the locking collar.

Fig. 21 is a top view of the locking ring.

Fig. 22 is a sectional view taken along line A1-A1 of fig. 21.

Fig. 23 is a perspective view of yet another view of the locking collar and an enlarged partial view thereof.

Fig. 24 is a schematic perspective assembly view of a locking ring provided by one possible implementation of the present application.

Fig. 25 is an exploded perspective view of the locking collar shown in fig. 24.

Fig. 26 is a perspective view of the ring body of the locking ring shown in fig. 24.

Fig. 27a is a top view of the locking ring shown in fig. 26.

Fig. 27B is a cross-sectional view taken along line B1-B1 shown in fig. 27 a.

Fig. 28 is a cross-sectional view taken along line B2-B2 shown in fig. 27 a.

Fig. 29 is a perspective view of the movable member of the locking ring shown in fig. 24.

Fig. 30 is a perspective view of the locking collar of fig. 29 from another perspective.

Fig. 31 is a perspective assembly view of the plug member and the locking collar shown in fig. 24.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the connector, a clamping groove is arranged on a socket, a locking ring is arranged on a plug, and a clamping point is arranged on the inner surface of the locking ring. In the locking process of the plug and the socket, the locking point of the plug is screwed into or out of the corresponding clamping groove of the socket through the rotation of the locking ring, so that the locking and unlocking functions are realized. The number of the clamping points and the clamping grooves is two in general. However, since the plug is locked with the socket only through the clamping point, when the plug and the socket are inserted, only two stress points are arranged, and the two stress points can only form a stress direction of one line. Under the external force, for example, the wiring harness stress of the plug and the stress of the plug body can lead to the shaking of the plug and the socket in the direction beyond the stress direction, the damage to the plug terminals of the plug and/or the socket can be caused, and even the damage to the plug terminals can cause overlarge resistance, so that the plug terminals are burnt in the use process, and the safety and the reliability of the connector are affected.

Based on this, the application provides a plug and a connector. A plug, comprising: the outer wall of the plug component is provided with an accommodating space, and the plug component is used for being inserted with the socket; an elastic member accommodated in the accommodation space; the locking ring, the locking ring includes ring body, arch, stuck point and elasticity auxiliary structure, the arch the stuck point with elasticity auxiliary structure is all located on the internal surface of ring body, the ring body can be dismantled the cover and establish on the plug part, the arch stretches into in the accommodation space, the elastic component elasticity supports to hold protruding with between accommodation space's the internal surface, the stuck point is used for the block in the draw-in groove of socket, elasticity auxiliary structure is used for the stuck point block is in the draw-in groove with the socket supports when holding.

Referring to fig. 1 and 2, an embodiment of the present application provides a connector 100, and the connector 100 is a waterproof connector. The connector 100 includes a receptacle 10 and a plug 20. The plug 20 is capable of interfacing with the receptacle 10 for transmitting electrical power and signals.

The socket 10 includes a locking ring portion 13 and an opposite plug portion 15. The locking ring portion 13 has a substantially annular structure. The counter portion 15 is accommodated in the lock ring portion 13. The locking ring portion 13 is disposed around the counter portion 15. An insertion space 130 is formed between the inner surface of the locking ring portion 13 and the insertion portion 15 for inserting a part of the plug 20. The outer peripheral surface of the locking ring part 13, which faces away from the opposite plug part 15, is provided with a clamping groove 131, and the clamping groove 131 is used for locking with the plug 20. Referring to fig. 3, the inner surface of the locking ring 13 is provided with a socket rib 133 for abutting against the plug 20 in the radial direction of the locking ring 13, so as to improve the stability of the socket 10 and the plug 20 during plugging. The slot 131 forms an opening 1311 through one end of the locking ring 13. The inner wall of the clamping groove 131 is convexly provided with a clamping protrusion 1313. The catching projection 1313 is for catching with the plug 20. The end of the holding projection 1313 near the opening 1311 is provided with a slope 1315 for facilitating the entry of a portion of the plug 20 into the card slot 131.

The counter insert 15 includes a first pair of insert ends 151 and a second pair of insert ends 153. A power port 1511 is provided on the first pair of plug terminals 151 for interfacing with the plug 20. The second pair of inserting ends 153 includes an inserting boss 1531 and a resilient piece 1533 with a fixed cover disposed on an end of the inserting boss 1531 away from the base 11.

In this embodiment, the elastic piece 1533 has a rotary spring structure. Typically, the socket employs leaf springs. The socket 10 adopts a rotary spring structure, and the rotary spring structure not only prolongs the service life of the connector 100, but also further reduces the plugging force and makes the plugging feel softer. Meanwhile, when the socket 10 is inserted into the plug 20, the elastic sheet 1533 is made to deviate from the positioning surface of the opposite insertion boss 1531, so that the contact length between the plug 20 and the contact of the socket 10 is increased, and the ablation risk is reduced. It is understood that the present application does not limit the spring 1533 to a torsion spring structure.

The spring 1533 has a signal port 1535 thereon for interfacing with the plug 20. In the present embodiment, the number of the first pair of the plugging terminals 151 is three, and the number of the second pair of the plugging terminals 153 is one. The number of signal ports 1535 is five.

Referring to fig. 4, 5 and 6 in combination, the plug 20 includes a plug member 22, an elastic member 24 and a locking ring 26. The plug member 22 is for interfacing with the counter portion 15 of the socket 10. The plug member 22 has an accommodation space 220 provided on the outer peripheral surface thereof. The elastic member 24 is accommodated in the accommodation space 220. The lock ring 26 is detachably fitted over the plug member 22. The lock ring 26 is used for locking with the clamping groove 131 of the locking ring part 13. When the plug 20 is mated with the receptacle 10, the locking collar portion 13 is located between the locking collar 26 and the plug member 22 in a radial direction of the locking collar 26.

Referring to fig. 7, the plug member 22 includes a mounting body 221, a plug rubber core 222, a plurality of functional terminals 225, and a seal ring 226. A connection line (not shown) is provided in the mounting body 221. The plug rubber core 222 is fixedly connected with the mounting body 221, and a plurality of functional terminals 225 are fixedly arranged on the plug rubber core 222 in a penetrating mode and are connected with connecting wires. The plurality of functional terminals 225 are for interfacing with corresponding terminals in the receptacle 10. The plurality of functional terminals 225 includes a power terminal 2251, a signal terminal 2253. The power terminal 2251 is for delivering power, and the signal terminal 2253 is for delivering a signal. The sealing ring 226 is fixedly sleeved outside the plug rubber core 222, and is used for realizing sealing connection between the plug 20 and the socket 10 when the plug 20 and the socket 10 are plugged together. The seal 226 may be, but is not limited to, a liquid silicone mold seal.

When the plug 20 is manufactured, the sealing ring 226 can be fixedly sleeved on the plug rubber core 222 by adopting an in-mold injection molding method; press-fitting the plurality of functional terminals 225 into the plug rubber core 222 by a hand beer machine or a pneumatic jig; cutting the wire, peeling the wire, and after tin immersion, welding the wire with the tail of the functional terminal 225 in the plug rubber core; placing the welded semi-finished product with the wire into an injection molding machine for encapsulation; loading the elastic member 24 into the receiving space 220 of the plug rubber core 222; the locking collar 26 is mounted on the plug core 222 from the front end of the plug core 222.

Referring to fig. 8 and 9, the plug rubber core 222 includes a rubber core 2220, two convex rings 2221, two grid blocks 2222, a plurality of connection convex ribs 2224 and mounting grooves 2225. Two convex rings 2221 are provided on the outer circumferential surface of the rubber core 2220 at intervals in the axial direction of the rubber core 2220 so as to form an annular groove 2223. Two lattice baffles 2222 are received in annular groove 2223 and fixedly connected with two convex rings 2221. The two stops 2222 form the receiving space 220 with the two collars 2221. The elastic member 24 is accommodated in the accommodation space 220. It can be appreciated that the structure of the accommodating space 220 is not limited in this application, for example, the ribs 2222 may be omitted, the grooves may be directly recessed on the outer peripheral surface of the glue core 2220 to form the accommodating space 220, or the ribs 2222 may be directly protruding on the outer surface of the glue core 2220 to form the accommodating space 220 between the two ribs 2222.

The plurality of connection ribs 2224 are disposed on the outer circumferential surface of the plug rubber core 222 at intervals along the circumferential direction of the plug rubber core 222. Along the axial direction of the plug rubber core 222, the mounting groove 2225 is closer to the mounting body 221 than the plurality of connection ribs 2224. Each of the connection beads 2224 forms a slot 2226 for mounting the seal ring 226. The connection bead 2224 is generally wedge-shaped. In this embodiment, the width of the mounting groove 2225 along the plug rubber core 222 does not exceed the wire diameter of the normal O-ring, and the depth of the mounting groove 2225 along the plug rubber core 222 is 1/6-1/7 of the wire diameter of the normal O-ring, which in this application is 1.5mm. It is understood that the present application does not limit the range of the width and depth of the installation groove 2225.

Referring to fig. 9 and 10 in combination, the sealing ring 226 is sleeved outside the plug rubber core 222 and fixedly connected with the slot 2226 and the mounting groove 2225. Referring to fig. 11, 12 and 13, the seal ring 226 is substantially annular along the circumferential direction of the seal ring 226. The seal ring 226 is substantially L-shaped in the axial direction of the seal ring 226. The seal ring 226 includes a first fixing portion 2261 and a second fixing portion 2262 axially disposed along the seal ring 226. The first fixing portion 2261 and the second fixing portion 2262 are both sleeved outside the plug rubber core 222.

A plurality of receiving grooves 2263 are provided on the inner surface of the first fixing portion 2261 at intervals along the circumferential direction of the first fixing portion 2261. The plurality of receiving grooves 2263 are in one-to-one correspondence with the plurality of connection beads 2224. The receiving groove 2263 is configured to receive the connection bead 2224. Each connecting bead 2224 is fixed in a corresponding one of the receiving grooves 2263. The receiving groove 2263 is adapted to the shape and structure of the connection bead 2224. An annular seal bead 2264 provided along the circumferential direction of the seal ring 226 is provided on the outer surface of the first fixing portion 2261. The sealing bead 2264 can abut against the socket 10 in the radial direction of the sealing ring 226, so that when the plug 20 and the socket 10 are inserted together, sealing connection is realized in the radial direction of the plug 20.

The second fixing portion 2262 has an outer diameter larger than that of the first fixing portion 2261, thereby forming a stepped surface 2265. The stepped surface 2265 can abut against the socket 10 in the axial direction of the plug 20, so that when the plug 20 and the socket 10 are inserted together, the plug 20 and the socket 10 are in sealing connection in the axial direction of the plug 20.

Because the sealing ribs 2264 are formed on the outer surface of the sealing ring 226, the gap between the plug 20 and the socket 10 after the plug and the socket are matched is reduced, and on the basis of the original end face sealing, the radial sealing inside the plug 20 and the socket 10 is increased, the double sealing effect is realized, and the sealing performance of the plug 20 and the socket 10 after the plug and the socket are matched is improved.

Because the sealing ring 226 is provided with the sealing ribs 2264, the outer peripheral surface of the plug rubber core 222 is provided with the connecting ribs 2224, and the inner surface of the locking ring portion 13 of the socket 10 is provided with the socket ribs 133 (as shown in fig. 3), after the plug 20 and the socket 10 are inserted together, the plug 20 and the socket 10 can be uniformly stressed, and the insertion stability of the plug 20 and the socket 10 when being inserted together is improved.

The second fixing portion 2262 is partially received in the mounting groove 2225. Since the connection ribs 2224 are accommodated in the accommodating grooves 2263, the second fixing portion 2262 is partially accommodated in the mounting groove 2225, which corresponds to the sealing ring 226 being partially embedded in the plug rubber core 222, the inner surface of the sealing ring 226 and the outer peripheral surface of the plug rubber core 222 can be tightly adhered together, the possibility that the sealing ring 226 is separated from the plug rubber core 222 is reduced, and the connection stability between the sealing ring 226 and the plug rubber core 222 is improved.

In one possible implementation manner of the present application, silicone rubber is adopted as a raw material in the installation groove 2225 and the groove 2226 of the plug rubber core 222, and the seal ring 226 is injection molded on the plug rubber core 222 by using an in-mold injection molding manner, so that the seal ring 226 and the plug rubber core 222 are integrated, the seal ring 226 can be effectively prevented from being separated from the plug rubber core 222 when the plug and the socket are plugged, and the connection stability between the seal ring 226 and the plug rubber core 222 is improved. It is understood that the present application is not limited to securing the seal ring 226 to the plug core 222 by injection molding.

Referring to fig. 14, the plug rubber core 222 is provided with a first pair of slots 2227 and a second pair of slots 2228 on a side facing away from the mounting body 221, the first pair of slots 2227 are used for providing the power terminals 2251, and the second pair of slots 2228 are used for providing the signal terminals 2253. In the present embodiment, the number of the first pair of slots 2227 is three, the number of the power terminals 2251 is three, and each power terminal 2251 is accommodated in one of the first pair of slots 2227. The number of signal terminals 2253 is five, and the five signal terminals 2253 are all received in the same second pair of slots 2228. It is to be understood that the number of the power terminals 2251 is not limited in this application, and for example, the number of the power terminals 2251 may be two or the like. It is to be understood that the number of the signal terminals 2253 is not limited in this application, and for example, the number of the signal terminals 2253 may be two or the like.

When the plug 20 and the socket 10 are plugged together, the first pair of plug terminals 151 are inserted into a corresponding first pair of slots 2227, and the power terminal 2251 is inserted into a corresponding power port 1511 (as shown in fig. 3), so as to realize power transmission. The second pair of plug terminals 153 are inserted into the second pair of slots 2228, and each signal terminal 2253 is inserted into a corresponding one of the signal ports 1535 (shown in fig. 3) for signal transmission.

The plug member 22 further includes three insulating sleeves 227, each insulating sleeve 227 being correspondingly sleeved on the power terminal 2251 and being received in the first pair of slots 2227, the insulating sleeve 227 extending along the power terminal 2251. The power terminal 2251 partially exposes the insulating sleeve 227. The outer peripheral surface of the power terminal 2251 includes a mating surface for contacting a contact surface within the power port 1511 when the power terminal 2251 is inserted into a corresponding power port 1511. The outer peripheral surface of the signal terminal 2253 includes a mating surface for contacting a contact surface within the signal port 1535 when the signal terminal 2253 is inserted into a corresponding signal port 1535. It is to be understood that the number of insulating sleeves 227 is not limited in this application.

In order to improve the use safety of the plug 20, the insulating sleeve 227 is sleeved outside the power terminal 2251, and the insulating sleeve 227 is added, so that the possibility of electric shock of an operator contacting the power terminal 2251 under an unconventional condition is greatly reduced, the creepage distance and the electric gap between the power terminal 2251 and an operator are increased, the use safety of the operator is improved, and the risk of accidents is reduced. The insulating sleeve 227 uses insulating materials such as plastic, and the insulating sleeve 227 adopts the mode of rubber coating to form integrated structure with the power terminal 2251, has reduced the possibility that insulating sleeve 227 drops from power terminal 2251.

Referring again to fig. 14, the plug member 22 further includes five protection bosses 228, and the five protection bosses 228 are all protruding on the bottom surface of the second pair of slots 2228, and each signal terminal 2253 is correspondingly disposed through one protection boss 228. It is understood that the number of the protection bosses 228 is not limited in this application.

In order to reduce the risk of electrolysis after the signal terminals 2253 are contacted with water, a protection boss 228 is added to the outer circumferential surface of the signal terminals 2253. When a small amount of water enters the interior of the plug rubber core 222, the possibility that the signal terminal 2253 contacts water is further reduced due to the protective boss 228, so that the risk of electrolytic corrosion of the signal terminal 2253 is reduced due to the influence of water. The protection boss 228 also increases the creepage distance between the signal terminals 2253, improving the safety of the connector 100 in use.

Referring to fig. 15 and 16a in combination, the locking ring 26 includes a ring 261, a protrusion 262, a clip 263 and a resilient assist structure 264. The ring 261 includes an inner surface 2600 and an outer surface 2601 disposed opposite in a radial direction of the ring 261. The protrusion 262, the snap 263 and the elastic auxiliary structure 264 are disposed on an inner surface 2600 of the ring 261. The ring 261 can be detachably sleeved on the plug rubber core 222. Referring to fig. 6 in combination, the protrusion 262 extends into the receiving space 220. The elastic member 24 is elastically held between the projection 262 and the inner wall of the accommodation space 220. In this embodiment, referring to fig. 16b, the locking point 263 is used to be engaged in the locking groove 131 of the socket 10, and the elastic auxiliary structure 264 abuts against the locking ring portion 13 of the socket 10 in the radial direction of the locking ring 26 when the locking point 263 is engaged in the locking groove 131.

When the socket 10 and the plug 20 are inserted together, the clamping point 263 is clamped in the clamping groove 131, so that the plug 20 and the socket 10 are locked.

The plug 20 and the receptacle 10 are locked by a snap point 263 on the lock ring 26. When the clamping point 263 is clamped in the clamping groove 131, the elastic auxiliary structure 264 is abutted against the locking ring portion 13 of the socket 10 in the radial direction of the locking ring 26, so that the elastic auxiliary structure 264 and the locking ring portion 13 are in close contact in the radial direction of the locking ring 26, and the clearance and the shaking amount between the plug 20 and the socket 10 are reduced.

When the lock ring 26 is not mounted on the plug member 22, the elastic member 24 is accommodated in the accommodation space 220 of the plug member 22. When the locking collar 26 is mounted on the plug member 22, the protrusions 262 of the locking collar 26 extend into the receiving space 220 and contact the resilient member 24, imparting a pre-compression to the resilient member 24, the resilient member 24 being located between the protrusions 262 and one of the stops 2222.

In some embodiments of the present application, referring again to fig. 2, the clip 263 can slide into or out of the slot 131 through the opening 1311. When the plug 20 and the receptacle 10 are to be plugged, the inclined surface of the latch 263 contacts with the inclined surface 1315 of the latch 131 of the receptacle 10. When the plug 20 moves toward the end of the receptacle 10, the catch 263 of the catch 26 moves along the inclined surface 1315 of the catch groove 131 of the receptacle 10. Referring to fig. 2 and 17, as the latch point 263 moves along the inclined surface 1315, the lock ring 26 rotates clockwise, the elastic member 24 can only move in the limited accommodating space 220, and the protrusion 262 continuously compresses the elastic member 24, so that the elastic member 24 obtains a larger compression amount. When the latch 263 passes the tail end of the inclined surface 1315 and then enters the tail of the clamping groove 131, the elastic component 24 automatically rebounds under the action of elastic potential energy to push the protrusion 262 of the locking ring 26 to rotate, so as to drive the locking ring 26 to return to the initial state anticlockwise, and the latch 263 abuts against the clamping protrusion 1313 of the socket 10, thus completing the self-locking reset action.

When unlocking, as shown in fig. 18, the operator rotates the outer surface of the locking ring 26 counterclockwise by hand, and drives the locking point 263 of the locking ring 26 to move, and the locking point 263 compresses the elastic component 24; when the locking point 263 of the locking ring 26 is separated from the tail end of the inclined surface 1315 of the socket 10, the operator pulls out the plug 20 in the opposite direction, and when the plug 20 and the socket 10 are completely separated, the operator releases the hand, and the elastic member 24 pushes the protrusion 262 of the locking ring 26 to complete the self-locking reset action under the action of elastic potential energy, the elastic member 24 stretches inside the accommodating space 220, and the locking ring 26 and the elastic member 24 are restored to the initial state, as shown in fig. 6.

Referring to fig. 16a, 19, 20, 21 and 22, the ring 261 further includes a first end surface 2611 and a second end surface 2612. The first end surface 2611 and the second end surface 2612 are disposed opposite to each other in the axial direction of the ring body 261. The first end surface 2611 is provided at an end of the ring body 261 remote from the mounting body 221. The inner surface 2600 of the ring 261 is provided with a recess 2613 along the axial direction of the ring 261 for receiving the resilient assist structure 264. A groove 2613 extends through the first end face 2611. The recess 2613 is a generally rectangular recess. It is understood that the present application does not limit the shape of the groove 2613.

A projection 262 (shown in fig. 16 a) is provided at an end of the ring body 261 adjacent the second end surface 2612. The clip 263 is disposed at an end of the ring 261 proximate the first end surface 2611. The stuck point 263 is generally a triangular block. The thickness of the stuck point 263 is relatively uniform. The thickness of the snap point 263 refers to the perpendicular distance between the side of the snap point 263 facing away from the inner surface 2600 of the ring 261 and the inner surface 2600 of the ring 261.

In this embodiment, the clip points 263 are integrally disposed with the ring 261, the clip points 263 are spaced from the elastic auxiliary structures 264, the number of the clip points 263 is two, the number of the elastic auxiliary structures 264 is two, and the connection line between the two clip points 263 is substantially perpendicular to the connection line between the two elastic auxiliary structures 264. It is understood that the present application is not limited to the location of the two snap points 263 and the two resilient assist structures 264. It is understood that the clip 263 and the ring 261 may be separately disposed, and the clip 263 and the elastic auxiliary structure 264 may be disposed without a space therebetween. It is understood that the present application is not limited to the number of snap points 263 and the present application is not limited to the number of resilient assist structures 264.

The elastic auxiliary structure 264 includes a movable member 2641 and an abutment projection 2642. The movable member 2641 is movably received in the recess 2613. Along the circumference of the locking ring 26, there is a gap between the sides of the movable member 2641 and the inner wall of the groove 2613 so that the ring body 261 does not interfere with the movement of the movable member 2641. The inner surface 2600 of the ring 261 and the face of the movable member 2641 facing away from the recess 2613 are both partially cylindrical.

In this embodiment, the movable member 2641 and the ring 261 are integrally injection molded, so that the strength and rigidity of the movable member 2641 and the coaxiality and position degree during the interaction are high. The movable member 2641 includes a fixed end 2643 and a free end 2644 disposed along the axial direction of the ring body 261. The fixed end 2643 is fixedly connected to the inner wall of the recess 2613 adjacent to the second end surface 2612. The free end 2644 is movable relative to the ring 261 in the radial direction of the ring 261 with the fixed end 2643 as a fulcrum. The end surface of the free end 2644 distal from the fixed end 2643 can be substantially flush with the first end surface 2611. The free end 2644 is spaced radially of the ring 261 from the inner wall of the recess 2613.

The supporting projection 2642 is protruding on one side of the movable member 2641 away from the groove 2613, and the supporting projection 2642 is located at the free end 2644. The abutment projection 2642 is used for abutting against the socket 10 in the radial direction of the lock ring 26 when the clamping point 263 is clamped in the clamping groove 131.

The abutment projection 2642 includes a first portion 2647 and a second portion 2648 connected along the axial direction of the ring 261. The first portion 2647 is disposed at an end of the abutment projection 2642 adjacent to the first end surface 2611, and a thickness of the first portion 2647 is smaller than a thickness of the second portion 2648. The first portion 2647 is configured to contact the plug member 22 during mating of the plug 20 with the receptacle 10, and the second portion 2648 is configured to radially abut the plug member 22 in the locking collar 26 when the clip 263 is engaged in the clip groove 131. The thickness of the first portion 2647 refers to the perpendicular distance between the side of the first portion 2647 facing away from the movable member 2641 and the side of the movable member 2641 facing away from the recess 2613. The thickness of the second portion 2648 refers to the perpendicular distance between the side of the second portion 2648 facing away from the movable member 2641 and the side of the movable member 2641 facing away from the recess 2613.

The first portion 2647 is generally wedge-shaped and the first portion 2647 is generally triangular in configuration. The thickness of the first portion 2647 increases from the first end surface 2611 toward the second end surface 2612 along the axial direction of the ring body 261 to guide the socket 10 when the socket 10 is inserted into the plug 20 from the first end surface 2611 side, facilitating the insertion between the socket 10 and the plug 20.

Referring to fig. 23, the first portion 2647 includes a first inclined plane 2651, a second inclined plane 2652 and a third inclined plane 2653 that are connected along a circumferential direction of the ring 261, wherein the first inclined plane 2651 forms a first included angle with a surface of the movable member 2641 facing away from the groove 2613, and the second inclined plane 2652 forms a second included angle with a surface of the movable member 2641 facing away from the groove 2613, and the first included angle and the second included angle are both acute angles. In other words, the abutment projections 2642 are acutely angled on either side of the circumference of the ring 261, further facilitating the mating between the receptacle 10 and the plug 20.

The length of the first portion 2647 in the circumferential direction of the ring 261 increases from the first end surface 2611 toward the second end surface 2612, so that during the process of inserting the plug 20 into the socket 10, the contact area between the first portion 2647 and the socket 10 is larger and larger, the resistance of the plug 20 and the socket 10 during insertion is reduced, and the insertion force of the plug 20 and the socket 10 cannot be increased in a step-like manner.

When the plug 20 is to be inserted into the receptacle 10, a portion of the receptacle 10 is inserted into the plug 20 from the first end surface 2611 side. With the rotation of the locking ring 26, the abutment projection 2642 on the movable member 2641 is contacted with the outer surface of the socket 10, and with the movement of the plug 20 toward the socket 10, the first portion 2647 is contacted with the socket 10, and the movable member 2641 is pushed by the socket 10 to move toward the inside of the groove 2613, that is, the movable member 2641 is opened toward the outside of the ring 261 in the radial direction of the ring 261.

After the plug 20 is inserted in place with the socket 10, the clip 263 is pushed against the slot 131 of the socket 10. The second portion 2648 is in radially close contact with the socket 10, thereby reducing the gap and the amount of rattle between the plug 20 and the socket 10.

When unlocking, as the operator rotates the locking ring 26, the abutment projection 2642 is gradually separated from the outer surface of the socket 10, the opened movable member 2641 is gradually moved toward the center of the locking ring 26 to be contracted, and the movable member 2641 is gradually restored to the original position. This results in the situation that the contact between the abutment projection 2642 and the socket 10 is always a line contact when the abutment projection 2642 is gradually separated from the outer surface of the socket 10, avoiding abrupt change of the coupling and separating force between the plug 20 and the socket 10, gradually reducing the extraction force, and reducing the possibility of abrupt change of the extraction force.

It is understood that the elastic auxiliary structure 264 may not be integrally provided with the ring 261, for example, in one possible implementation, the movable member 2641 of the elastic auxiliary structure 264 is a spring, and one end of the spring is fixedly connected with the inner wall of the groove 2613, and the supporting projection 2642 is fixed on the spring.

In one possible implementation, referring to fig. 24 and 25, the elastic auxiliary structure 264 of the lock ring 26 includes a movable member 2641, a supporting protrusion 2642 and an elastic member 2649, where the movable member 2641 is slidably connected with the ring 261 along the axial direction of the ring 261, and the supporting protrusion 2642 is protruding on one side of the movable member 2641 facing the center of the ring 261. The elastic member 2649 is connected between the movable member 2641 and the ring body 261. The elastic member 2649 is capable of deforming in the axial direction of the ring body 261.

Referring to fig. 26, 27a, 27b, and 28, the ring body 261 has an installation region 2610 on the inner surface 2600, and the ring body 261 has a slide groove 2617, a restricting portion 2618, and a mounting groove 2619 in the installation region 2610. The slide groove 2617 penetrates the first end surface 2611 and the second end surface 2612 of the ring body 261 in the axial direction of the ring body 261, and is slidably connected with the movable member 2641. The inner surface of the chute 2617 is provided with a shoulder 2620. Shoulder 2620 is adapted to cooperate with movable member 2641 to define radial movement of movable member 2641 along ring 261. A limiting portion 2618 is provided on an inner surface of the ring 261 in a protruding manner for sliding connection with the movable member 2641. A mounting groove 2619 is provided on the inner surface of the ring body 261, the mounting groove 2619 penetrating through the first end face 2611 but not through the second end face 2612 for mounting the elastic member 2649.

In the present embodiment, the number of the installation regions 2610 is two, and the two installation regions 2610 are oppositely installed. Each of the installation regions 2610 is provided with two slide grooves 2617, two restricting portions 2618, and one installation groove 2619. The mounting groove 2619 is located between two slide grooves 2617. Along the circumference of the ring 261, two sliding grooves 2617 are located between two limiting portions 2618.

Referring to fig. 29 and 30 in combination, the movable member 2641 is mounted on the mounting region 2610, and the movable member 2641 further includes a tile 2655, a connecting portion 2656 and a shaft portion 2657. The side of the tile 2655 facing away from the inner surface 2600 of the ring 261 is a partial cylindrical surface having a radius substantially the same as the radius of the inner surface 2600. The tile body 2655 is provided with a restricting groove 2658 provided along the axial direction of the ring body 261. The restriction portion 2618 penetrates the restriction groove 2658. The restricting groove 2658 provided along the axial direction of the ring body 261 restricts the movement stroke of the movable member 2641 along the axial direction of the ring body 261, and prevents the movable member 2641 from being disengaged from the ring body 261.

The connecting portion 2656 and the shaft portion 2657 are each provided protruding from the tile body 2655 toward the inner surface of the ring body 261. The connecting portion 2656 is slidably connected to the slide channel 2617. The end of the connecting portion 2656 away from the tile 2655 is provided with a buckle 2659, and the buckle 2659 is accommodated in the sliding groove 2617 and abuts against the shaft shoulder 2620. When the connecting portion 2656 slides in the sliding groove 2617, the buckle 2659 abuts against the shaft shoulder 2620, the connecting portion 2656 can only move along the axial direction of the ring 261 relative to the ring 261, the connecting portion 2656 cannot move along the radial direction of the ring 261 relative to the ring 261, and therefore the position stability of the movable piece 2641 along the radial direction of the ring 261 relative to the ring 261 is improved. The shaft portion 2657 extends in the axial direction of the ring body 261 for mounting the elastic member 2649.

Referring to fig. 31, one end of the elastic member 2649 is sleeved outside the shaft portion 2657, and the other end of the elastic member 2649 is received in the mounting groove 2619, so that the movement of the elastic member 2649 in a direction different from the axial direction of the lock ring 26 is restricted.

In the present embodiment, the number of the connection portions 2656 on the tile body 2655 is two, and each connection portion 2656 is slidably connected to one slide groove 2617. The number of shaft portions 2657 is one, and the shaft portions 2657 are located between two connecting portions 2656. The number of the regulating grooves 2658 is two corresponding to the regulating portions 2618. Two restraining grooves 2658 are provided at intervals along the circumferential direction of the lock ring 26. The movable member 2641 is slidably connected with the ring body 261 through two connecting portions 2656, and the two limiting grooves 2658 are slidably connected with the ring body 261, so that stability of the movable member 2641 in motion relative to the ring body 261 along the axial direction of the ring body 261 is improved.

It is to be understood that the number of the connecting portions 2656 is not limited, and the number of the limiting grooves 2658 is not limited, for example, the number of the connecting portions 2656 and the number of the sliding grooves 2617 are one, and the number of the limiting grooves 2658 and the number of the limiting portions 2618 are one.

The thickness of the abutment projection 2642 in the axial direction of the locking ring 26 is relatively uniform.

Referring to fig. 24 and 31, when the elastic auxiliary structure 264 and the ring 261 are assembled together, the elastic member 2649 is mounted on the shaft portion 2657, and the connecting portion 2656 extends into the sliding groove 2617 from the side of the first end surface 2611 of the ring 261. After the movable member 2641 and the elastic member 2649 are pushed into the ring 261, the restricting portion 2618 is inserted into the restricting groove 2658. The elastic members 2649 are also partially received in the corresponding mounting grooves 2619.

As shown in fig. 31, when the receptacle 10 and the plug 20 are aligned, the abutment projection 2642 first contacts the outer surface of the receptacle 10 as the locking collar 26 rotates. As the plug 20 moves toward the end of the socket 10, i.e., the second end surface 2612 faces the first end surface 2611, the limiting portion 2618 extends into the limiting groove 2658, so that the movable member 2641 moves along the axial direction of the lock ring 26, the movable member 2641 compresses the elastic member 2649 to obtain elastic potential energy, and meanwhile, the elastic member 2649 gives the movable member 2641 axial force from the second end surface 2612 toward the first end surface 2611, so that the abutting bump 2642 presses the end surface of the socket 10, and the clamping point 263 is in close contact with the socket in the axial direction, thereby reducing the gap and the shaking amount between the plug 20 and the socket 10.

When unlocking, as the operator rotates the locking ring 26, the plug 20 is gradually separated from the socket 10, and as the gap between the plug 20 and the socket 10 is gradually increased, the elastic potential energy of the elastic member 2649 is slowly released, and the elastic member 2649 pushes the movable member 2641 to move along the axial direction of the ring body 261 until the elastic member 2649 is restored to the initial state in the mounting groove 2619. In the unlocking process, the elastic potential energy of the elastic member 2649 and the axial movement of the movable member 2641 are all linearly changed, and the possibility of abrupt change is avoided, so that the extraction force is slowly and stably changed. The holding projection 2642 and the clamping point 263 can be set to be the same shape, and the thickness is consistent and does not gradually change. The wedge shape of the previous embodiment is not used. Because:

in the first embodiment: is the radial force applied by the contact of the plug with the receptacle. The wedge-shaped elastic auxiliary structure is that when the elastic auxiliary structure and the clamping point are matched with the socket, the outer edge of the clamping point is in contact with the outer surface of the socket, the initial cutting force is small, the contact surface is gradually increased along with the rotation of the locking ring, the force is also gradually increased, if the contact surface is the same in cross section, the initial cutting radial force is large, the plug can hardly complete initial matching, the matching of the plug and the socket can be influenced, and the matching is not in place.

In a second embodiment: is the axial force applied by the contact of the plug with the receptacle. The contact force is larger at the beginning, so that the end face of the clamping point, which is contacted with the socket, is tightly contacted, if the wedge-shaped section is changed, the contact area and the force are slowly increased, and the contact can be unstable along with the rotation of the locking ring, thereby losing the purpose of increasing the matching stability of the plug and the socket.

The plug and the connector can be widely applied to the fields of consumer electronics, industry, traffic and the like of various types of vehicles, communication, computers and the like. For example, the alloy can be used as a key part for new energy automobiles, electric bicycles, electric motorcycles, electric scooters and the like, and the application of the alloy is very wide, and the alloy is not limited to examples.

The foregoing disclosure is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the claims herein, as the equivalent of the claims herein shall be construed to fall within the scope of the claims herein.

Claims (10)

1. A plug, the plug comprising:

the plug component is provided with an accommodating space on the outer wall and is used for being inserted with the socket;

an elastic member accommodated in the accommodation space;

The locking ring, the locking ring includes ring body, arch, trip and elasticity auxiliary structure, the arch the trip with elasticity auxiliary structure is all located on the internal surface of ring body, the trip with the integrative setting of ring body, the trip with elasticity auxiliary structure interval sets up, the ring can detachably cover is established on the plug part, the arch stretches into in the accommodation space, the elastic component elasticity supports and holds between protruding with accommodation space's internal surface, the trip be used for the block in the draw-in groove of socket, elasticity auxiliary structure is used for the trip block is in the draw-in groove with the socket supports when holding.

2. The plug according to claim 1, wherein the elastic auxiliary structure comprises a movable member and a supporting projection, and the movable member is movably connected with the ring body;

the supporting protruding block is protruding to be located the movable part towards one side of the center of ring body, supporting protruding block is used for with the socket supports when the draw-in point block in the draw-in groove.

3. The plug according to claim 2, wherein the movable member includes a fixed end and a free end disposed along an axial direction of the ring body, the fixed end being fixedly connected to the ring body, the free end being movable relative to the ring body with the fixed end as a fulcrum;

The supporting protruding block is protruding to be located the movable part towards one side of the center of ring body, supporting protruding block is used for with the socket is in radial butt of catch when the draw-in point block in the draw-in groove.

4. A plug according to claim 3, wherein the ring body includes a first end face and a second end face which are disposed opposite to each other in an axial direction of the ring body, an inner surface of the ring body is provided with a groove in the axial direction of the ring body, the groove penetrates through the first end face, the movable member is accommodated in the groove, both sides of the movable member in a circumferential direction of the ring body are spaced from an inner wall of the groove, the holding projection includes a first portion and a second portion which are connected in the axial direction of the ring body, the first portion is provided at an end of the holding projection adjacent to the first end face, a thickness of the first portion is smaller than a thickness of the second portion, the first portion is used for contacting the socket in a process of inserting the plug into the socket, and the second portion is used for radially holding against the socket in the lock ring when the snap-in groove.

5. The plug according to claim 4, wherein a thickness of the first portion increases from the first end face toward the second end face in an axial direction of the ring body, and a length of the first portion in a circumferential direction of the ring body increases from the first end face toward the second end face.

6. The plug of claim 5, wherein the first portion includes a first inclined surface, a second inclined surface, and a third inclined surface that are disposed in a circumferential connection with the ring body, the first inclined surface and an inner surface of the ring body where the first inclined surface is located form a first included angle, the third inclined surface and an inner surface of the ring body where the third inclined surface is located form a second included angle, and the first included angle and the second included angle are both acute angles.

7. The plug of claim 2, wherein the resilient assist structure further comprises a resilient member,

the movable piece is connected with the ring body in a sliding way along the axial direction of the ring body, the elastic piece is connected between the movable piece and the ring body,

the elastic piece can deform along the axial direction of the ring body, so that the supporting protruding block supports against the socket along the axial direction of the ring body when the clamping point is clamped in the clamping groove.

8. The plug according to claim 7, wherein the ring body further comprises a slide groove penetrating through an end face of the ring body in an axial direction of the ring body and a restriction portion protruding on an inner surface of the ring body,

The movable piece further comprises a tile body and a connecting part convexly arranged on one side of the tile body, which faces the sliding groove, wherein a limiting groove is formed in the tile body along the axial direction of the ring body, the limiting part is slidably arranged in the limiting groove in a penetrating mode, and the connecting part is slidably connected with the sliding groove.

9. The plug according to claim 1, wherein the plug component comprises a mounting body, a plug rubber core, a plurality of plug opposite-plug terminals and a sealing ring, one end of the plug rubber core is fixed on the mounting body, the plug opposite-plug terminals are fixedly arranged on the plug rubber core in a penetrating mode, the sealing ring is sleeved on the outer peripheral surface of the plug rubber core, the sealing ring comprises a first fixing portion and a second fixing portion which are fixedly connected in the axial direction of the sealing ring, the outer diameter of the first fixing portion is smaller than the outer diameter of the second fixing portion, so that a step surface is formed, the step surface is used for propping against a socket in the axial direction of the sealing ring, and a sealing convex rib is arranged on the outer surface of the first fixing portion in a protruding mode and is used for propping against the socket in the radial direction of the sealing ring.

10. A connector comprising a socket and a plug according to any one of claims 1-9, wherein the socket is provided with a clamping groove, and when the clamping point of the plug is clamped in the clamping groove, a plug part of the plug is abutted with the socket, and an elastic auxiliary structure of the plug is abutted with the socket.