CN218828063U

CN218828063U - Electrical connector

Info

Publication number: CN218828063U
Application number: CN202223435193.2U
Authority: CN
Inventors: 沈超; 张金国
Original assignee: Dongtai Zhengyao Precision Technology Co ltd
Current assignee: Dongtai Zhengyao Precision Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-04-07
Anticipated expiration: 2032-12-21

Abstract

The utility model provides an electric connector, which comprises a connector body with a butt joint part and a first boss part; the lock catch assembly is provided with a lock catch shell, wherein the lock catch shell is provided with a lock catch part, a main body part and a second boss part, the lock catch part is arranged at a radial interval with the butt joint part, the main body part is positioned at the rear side of the lock catch part, and the second boss part is used for connecting the lock catch part and the main body part; an inserting space is formed between the butting part and the locking part, the locking part is provided with a first locking bulge which extends into the inserting space, and the locking shell circumferentially rotates on the outer side of the connector body so as to lock the butting connector through the first locking bulge; the locking mechanism is movably arranged outside the lock catch shell along the axial direction; the first boss part and the second boss part are correspondingly provided with lock catch grooves along the axial direction, the locking mechanism is provided with a second lock catch bulge which can be matched with the lock catch grooves for locking simultaneously, and when the locking mechanism moves along the axial direction, the second lock catch bulge can also release the locking between the second lock catch bulge and the first boss part. The electric connector is locked by arranging the first locking protrusion and the second locking protrusion.

Description

Electrical connector with improved contact arrangement

Technical Field

The utility model relates to an electric connector.

Background

Electrical connectors are indispensable components in electronic and electrical devices. With the upgrading of electronic and electrical devices, electrical connectors have been developed into rather mature products. It is necessary for an electrical connector to be able to transmit signals or currents at high speeds with stable and reliable contacts. Generally, an electrical connector generally includes an insulating body, a conductive terminal, and a shielding shell sleeved outside the insulating body, and then, when the electrical connector is in a mobile transportation condition, frequent vibration is likely to occur, and the shielding shell or other elements may fall off due to vibration after assembly, thereby causing the electrical performance of the electrical connector to be damaged.

In view of the above, there is a need for an improved electrical connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector, it can avoid causing droing of each component of electric connector because of vibrations.

To achieve the above object, the present invention provides an electrical connector, which includes a connector body and a locking assembly disposed outside the connector body, wherein the connector body has a cylindrical butt-joint portion and a first boss portion located behind the cylindrical butt-joint portion, the first boss portion protrudes outward in a radial direction beyond the butt-joint portion, the locking assembly has a locking housing disposed around the connector body and a locking mechanism movably disposed outside the locking housing in an axial direction, the locking housing has a locking portion radially spaced from the butt-joint portion, a main portion located behind the locking portion, and a second boss portion connecting the locking portion and the main portion, the second boss portion is located in front of the first boss portion and is at least partially opposite to the first boss portion in the axial direction; an inserting space used for containing an abutting connector is formed between the abutting portion and the lock catch portion, the lock catch portion is provided with a first lock catch protrusion protruding into the inserting space, the lock catch shell rotates on the outer side of the connector body along the circumferential direction to lock the abutting connector through the first lock catch protrusion, the first boss portion and the second boss portion are correspondingly provided with lock catch grooves along the axial direction, the locking mechanism is provided with a second lock catch protrusion capable of being matched and locked with the lock catch grooves of the first boss portion and the second boss portion simultaneously, and when the locking mechanism moves along the axial direction, the second lock catch protrusion can also release locking between the first boss portion and the second boss portion.

As a further improvement, the locking mechanism further comprises a ring arranged on the nut member outside the locking shell, and the second locking protrusion is uniformly arranged on the inner wall surface of the nut member along the circumferential direction.

As a further improvement of the utility model, locking mechanical system still includes that the ring is located the shockproof spring in the main part outside with be located the jump ring of shockproof spring rear side, nut spare covers simultaneously and locates the shockproof spring outside and rear end with jump ring looks location fit.

As a further improvement of the present invention, the locking mechanism further includes a ring disposed on the stop ring outside the anti-vibration spring, the stop ring is located the nut member is inboard and has a rear stop portion protruding radially inward, the rear stop portion is stopped at the axial direction from the rear to the front in the anti-vibration spring, the clamp spring is stopped at the axial direction from the rear to the front in the rear stop portion.

As a further improvement of the present invention, the nut member includes a front stopper portion having an inner diameter smaller than an outer diameter of the second boss portion to be stopped in the axial direction at a front side of the anti-vibration spring, the second locking protrusion is protruded from the front stopper portion to be protruded rearward in the axial direction to be locked in cooperation with the locking groove of the second boss portion.

As a further improvement of the present invention, the latch assembly further includes a latch spring located at the rear side of the first boss portion of the connector body, the latch spring and the shockproof spring are fixed at the radial direction in the inner side and the outer side of the latch housing.

As a further improvement, the second boss portion the snap close groove is defined as a positioning hole, the positioning hole runs through in the axial direction, the nut member is smaller than in the movable distance of the axial direction the axial depth or the extension depth of the positioning hole.

As a further improvement of the present invention, the first locking protrusion is located at the front side of the second locking protrusion in the axial direction.

As a further improvement of the present invention, the electrical connector further comprises a waterproof ring located at the joint of the butt joint portion and the first boss portion.

As a further improvement of the present invention, the electrical connector includes a fixed portion in a plurality of conductive terminals of the butt-joint portion and a pair of error-proof pins, the first locking protrusion and the error-proof pins are located on the same diameter of the butt-joint portion.

The utility model has the advantages that: the utility model discloses an electric connector is provided with the first hasp arch with butt joint connector hasp through the hasp casing inboard in the hasp subassembly, and the locking mechanism of hasp subassembly is provided with the second hasp arch that cooperates simultaneously with the hasp groove of first boss portion and second boss portion; meanwhile, when the locking mechanism moves in the axial direction, the second locking protrusion can also be unlocked from the first boss portion, and meanwhile, the second locking protrusion is locked with the second boss portion to complete the rotation of the locking shell in the circumferential direction, so that the locking or unlocking of the first locking protrusion and the butting connector is completed. The electric connector can be locked twice through the first locking bulges and the second locking bulges, so that the electric connector can be prevented from falling off in a vibration environment, and the stability and the yield of each element of the electric connector are ensured.

Drawings

Fig. 1 is a schematic perspective view of the electrical connector and the mating connector of the present invention when they are not plugged.

Fig. 2 is a three-dimensional exploded view of the nut member of the electrical connector and other parts of the electrical connector according to the present invention.

Fig. 3 is a three-dimensional exploded view of the connector body and the locking assembly of the electrical connector of the present invention.

Fig. 4 is an exploded perspective view seen from another direction of fig. 3.

Fig. 5 is a further exploded perspective view of fig. 3.

Fig. 6 is an exploded perspective view of fig. 5 viewed from another direction.

Fig. 7 is a further exploded perspective view of fig. 3.

Fig. 8 is an exploded perspective view seen from another direction in fig. 7.

Fig. 9 is a front view of the electrical connector of the present invention.

Fig. 10 isbase:Sub>A cross-sectional view of the electrical connector of fig. 1 taken along linebase:Sub>A-base:Sub>A.

Fig. 11 is a perspective cross-sectional view of the electrical connector.

Fig. 12 is a view from another angle of fig. 11.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiment, and the structural, method, or functional changes made by those skilled in the art according to the embodiment are all included in the scope of the present invention.

Fig. 1 to 12 show a preferred embodiment of the electrical connector assembly according to the present invention. The electrical connector assembly includes an electrical connector 100 and a mating connector 200 mated with each other. For convenience of description, when the electrical connector 100 or the docking connector 200 is described below, the docking end is regarded as a front end, the terminal end is regarded as a rear end, a direction in which the electrical connector 100 and the docking connector 200 are docked is regarded as an axial direction, and a direction from an outer side to an inner side of the electrical connector 100 is regarded as a radial direction; the direction in which the surface of the electrical connector 100 is circumferential is regarded as the circumferential direction.

Referring to fig. 1 to 12, the electrical connector 100 includes a connector body 10 and a locking assembly 20 disposed outside the connector body 10.

The connector body 10 includes a cylindrical mating portion 101 and a first boss portion 22 located at the rear side of the cylindrical mating portion 101, the first boss portion 22 projecting radially outward beyond the mating portion 101.

The connector body 10 further comprises an insulating body 1 and an opposite insertion mistake-proofing tube 2 arranged outside the insulating body 1. The first boss portion 22 is disposed on the surface of the opposite insertion mistake-proofing pipe 2. The opposite insertion mistake-proofing pipe 2 includes a front end 21 and a rear end 23 provided corresponding to the abutting portion 101 and the first boss portion 22 connecting the front end 21 and the rear end 23. The first boss portion 22 protrudes outward in the radial direction from the front end 21 and the rear end 23. The outer side of the front end 21 is further provided with a plurality of protruding strips 211 protruding from the surface of the mating mistake-proof tube 2 and abutting against the mating connector 200. The convex strips 211 extend in the axial direction. The first boss 22 is provided with a plurality of latching grooves, which are defined as recesses 221, in an axially corresponding manner. The recesses 221 are uniformly distributed on the outer circumferential surface of the first boss portion 22. The recess 221 penetrates in the axial direction.

Referring to fig. 1 to 12, the locking assembly 20 includes a locking housing 5 disposed around the outer side of the connector body 10 and a locking mechanism 6 movably disposed on the outer side of the locking housing 5 along an axial direction.

The latch housing 5 has a latch portion 51 provided at a radial interval from the mating portion 101, a main body portion 52 located behind the latch portion 51, and a second boss portion 53 connecting the latch portion 51 and the main body portion 52. The second boss portion 53 is located on the front side of the first boss portion 22 and at least a part of the second boss portion 53 is axially opposed to the first boss portion 22. A plugging space 50 for accommodating the mating connector 200 is formed between the mating portion 101 and the locking portion 51. The protruding strips 211 protrude from the inserting space 50. The locking portion 51 has a first locking projection 511 projecting into the insertion space 50. The locking housing 5 rotates in the circumferential direction outside the connector body 10 to lock the mating connector 200 by the first locking protrusion 511. The second boss portion 53 is provided with a plurality of locking grooves along the axial direction, and the locking grooves are defined as positioning holes 531. At this time, the positioning holes 531 are also uniformly distributed on the second boss portion 53. The positioning hole 531 penetrates in the axial direction and corresponds to the notch 221.

The locking mechanism 6 has a second locking projection 6111 which can be simultaneously locked with the locking grooves of the first boss portion 22 and the second boss portion 53, and when the locking mechanism 6 moves in the axial direction, the second locking projection 6111 can also release the locking with the first boss portion 22. Specifically, the second locking projections 6111 are simultaneously fixed in cooperation with the notches 221 of the first boss portion 22 and the positioning holes 531 of the second boss portion 53, and when the locking mechanism 6 moves in the axial direction, the second locking projections 6111 can also be unlocked from the notches 221 of the first boss portion 22. The first locking protrusion 511 is located at the front side of the second locking protrusion 6111 in the axial direction, and when the electrical connector 100 is connected with the mating connector 200, the locking of the first locking protrusion 511 and the mating connector 200 does not interfere with the mating of the second locking protrusion 6111 and the locking groove. Hereinafter, how the locking mechanism 6 realizes the fitting locking of the second locking protrusion 6111 with the notch 221 and the positioning hole 531 and the unlocking of the second locking protrusion 6111 with the notch 221 will be described in detail.

The locking mechanism 6 comprises a nut member 61 arranged around the outside of the locker house 5. The nut member 61 includes a front stop portion 611 located on a front end surface and a cylindrical portion 612 connected to the front stop portion 611. The front blocking portion 611 has a through hole (not numbered) having an inner diameter smaller than an outer diameter of the second boss portion 53. When the nut member 61 is fitted to the lock case 5, the locking portion 51 of the lock case 5 passes through the through hole, and the second boss portion 53 is located at the rear end in the axial direction of the second boss portion 53. Since the inner diameter of the through hole is smaller than the outer diameter of the second boss portion 53, the front of the second boss portion 53 is stopped by the front stopping portion 611. The second locking projections 6111 project rearward from the front blocking portion 611 in the axial direction to be locked in cooperation with the positioning holes 531 of the second boss portion 53. Meanwhile, the second locking projections 6111 are uniformly arranged on the inner wall surface of the nut member 61 along the circumferential direction, so that the second locking projections 6111 can be matched with the positioning holes 531 and the notches 221 in the whole circumferential direction. An annular groove 6121 is recessed in an inner wall surface of the rear end of the cylindrical portion 612 in the axial direction.

The locking mechanism 6 further includes a shock-proof spring 62 disposed around the outer side of the main body 52 and a clamp spring 65 disposed behind the shock-proof spring 62. The nut member 61 is also covered outside the anti-vibration spring 62 and is in positioning fit with the snap spring 65. The clamp spring 65 is received in the groove 6121 to be fixed with the nut member 61. When the entire lock mechanism 6 is moved in the axial direction, the circlip 65 and the anti-vibration spring 62 limit the amount of movement of the lock mechanism 6 in the axial direction.

Specifically, the locking mechanism 6 further includes a stop ring 64 disposed around the outer side of the anti-vibration spring 62. In the radial direction, the stop ring 64 is located between the anti-vibration spring 62 and the nut member 61. Since the anti-vibration spring 62 is located over the entire locking housing 5, the anti-vibration spring 62 fixes the stop ring 64 to the nut part 61 in the radial direction. The retainer ring 64 is located inside the nut member 61 and has a radially inwardly projecting backstop 641, the backstop 641 stops the anti-vibration spring 62 from the rear in the axial direction, and the snap spring 65 stops the backstop 641 from the rear in the axial direction. In this embodiment, the clamp spring 65 is stopped on the front wall surface of the groove 6121 and the rear stopping portion 641, so that the clamp spring 65 is linked with the stop ring 64 and the anti-vibration spring 62 in the whole process.

The locking buckle assembly 20 further includes a locking buckle spring 63 located at the rear side of the first boss portion 22 of the connector body 10, and the locking buckle spring 63 and the anti-vibration spring 62 are held at the inner side and the outer side of the locking buckle housing 5 in the radial direction. Referring to fig. 10 to 12, the locking spring 63 is also provided with a stop ring 64 on the outer side. With such an arrangement, a certain buffering force can be given to the lock housing 5, and when the first locking protrusion 3211 is engaged with the mating connector 200 in the process of mating with the mating connector 200, the accuracy can be reduced adaptively, and a certain buffering effect is provided for the mating of the lock housing 5 in the axial direction.

When the second locking protrusion 6111 is locked or unlocked with the notch 221, the second locking protrusion 6111 is always locked with the positioning hole 531, so that the nut member 61 drives the locking housing 5 to complete the locking or unlocking of the first locking protrusion 511 to the mating connector 200. At this time, in order to satisfy such a situation, the movable distance of the nut member 61 in the axial direction is smaller than the axial depth or the extended depth of the positioning hole 531. Thus, when the second locking projections 6111 exit from the notches 221, the second locking projections 6111 are still within the axial range of the positioning hole 531.

The electrical connector 100 further includes a waterproof ring 7 located at the joint of the mating portion 101 and the first boss portion 22 for preventing moisture brought in by the mating connector 200 during the process of mating the electrical connector 100 with the mating connector 200 from entering the interior of the electrical connector 100.

Referring to fig. 1 and 9, the electrical connector 100 further includes a conductive terminal 3 fixed to the insulating housing 1 and a pair of error-proof pins 4. The first locking protrusion 511 and the error-proof pin 4 are located on the same diameter of the abutting part 101.

The mating connector 200 includes an insulator 201, a mating terminal 202 held on the insulator 201, and a housing 203 surrounding the insulator 201. The housing 203 includes a clamping sliding groove 2031 located on the outer side and slidably engaged with the first locking protrusion 511 in the circumferential direction and a butt-joint sliding groove 2032 slidably engaged with the protruding strip 211 in the axial direction.

The following describes how the electrical connector 100 and the docking connector 200 are slidably engaged and disengaged.

When the electrical connector 100 is locked with the mating connector 200 in a sliding fit manner, a force in an axial direction needs to be applied to the cylindrical portion 612 of the nut member 61, and at this time, the nut member 61 moves forward in the axial direction, and the snap spring 65 drives the stop ring 64 to compress the anti-vibration spring 62 in front of the stop ring 64 forward under the driving of the groove 6121 until the second locking protrusion 6111 exits from the notch 221. At this time, since the anti-vibration spring 62 is located at the rear end of the second boss portion 53 and the outer diameter of the second boss portion 53 is smaller than the inner diameter of the through hole of the front blocking portion 611, the anti-vibration spring 62 is not ejected. And the rear end of the anti-vibration spring 62 is stopped by the snap spring, so that a restriction is given to the movement of the nut member 61 in the axial direction. When the second locking protrusions 6111 exit from the notches 221, the second locking protrusions 6111 are still located in the positioning holes 531, and the nut member 61 is rotated in the circumferential direction to drive the first locking protrusions 511 of the locking housing 5 to be locked in circumferential sliding fit with the locking sliding grooves 2031 of the mating connector 200. Then, the nut member 61 is released again, and at this time, the nut member 61, the stop ring 64 and the snap spring 65 of the locking mechanism 6 move from front to back under the elastic restoring force of the anti-vibration spring 62 until the second locking projections 6111 re-lock the notches 221, completing the locking. Meanwhile, the mating connector 200 is also locked with the electrical connector 100 by the protruding strips 211 and the mating sliding grooves 2032.

When the electrical connector 100 needs to be unlocked from the mating connector 200, the nut member 61 is also given a forward pushing force, and at this time, the locking mechanism 6 moves forward in the axial direction, and the snap spring 65, under the driving of the groove 6121, drives the stop ring 64 to compress the anti-vibration spring 62 in front of the stop ring 64 forward until the second locking protrusion 6111 exits from the notch 221. Then, the nut member 61 is rotated in a circumferential direction opposite to the circumferential direction until the first latching protrusion 511 exits from the latching sliding groove 2031 and the protruding strip 211 exits from the mating sliding groove 2032, so that the electrical connector 100 and the mating connector 200 can be unlocked. After releasing the nut member 61, the stop ring 64 and the snap spring 65 of the locking mechanism 6 move from front to back under the elastic restoring force of the anti-vibration spring 62 until the second locking projections 6111 re-lock the notches 221 to restore their original shapes.

In the present invention, the inner side of the latch housing 5 in the latch assembly 20 of the electrical connector 100 is provided with a first latch protrusion 511 for latching with the latch chute 2031 of the docking connector 200, and the locking mechanism 6 of the latch assembly 20 is provided with a second latch protrusion 6111 for simultaneously cooperating with the latch grooves of the first boss portion 22 and the second boss portion 53; meanwhile, when the locking mechanism 6 moves in the axial direction, the second locking projections 6111 may also be unlocked from the first boss portion 22, and meanwhile, the second locking projections 6111 are locked with the second boss portion 53, so that the rotation of the locking housing 5 in the circumferential direction is completed, and the locking or unlocking of the first locking projections 511 and the clamping sliding grooves 2031 of the mating connector 200 is completed. The first locking protrusion 511 and the second locking protrusion 6111 can lock the electrical connector 100 twice, so as to prevent the electrical connector from falling off in a vibration environment, and ensure the stability and yield of each component in the electrical connector 100.

Terms such as "upper," "lower," "left," "right," "front," "rear," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one feature's relationship to another feature as illustrated in the figures. It will be understood that the spatially relative positional terms may be intended to encompass different orientations than those shown in the figures depending on the product presentation position and should not be construed as limiting the claims. In addition, the descriptor "horizontal" as used herein is not entirely equivalent to allowing an angular tilt along a direction perpendicular to the direction of gravity.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electrical connector, its include connector body and set up in the hasp subassembly in the connector body outside, the connector body has cylindric butt joint portion and is located the first boss portion of cylindric butt joint portion rear side, first boss portion is along the radial outside projection surpass butt joint portion, its characterized in that: the locking assembly is provided with a locking shell arranged on the outer side of the connector body in a surrounding mode and a locking mechanism movably arranged on the outer side of the locking shell along the axial direction, the locking shell is provided with a locking part arranged at intervals along the radial direction with the butting part, a main body part located on the rear side of the locking part and a second boss part connecting the locking part and the main body part, and the second boss part is located on the front side of the first boss part and at least partially opposite to the first boss part along the axial direction; an inserting space used for containing an abutting connector is formed between the abutting portion and the lock catch portion, the lock catch portion is provided with a first lock catch protrusion protruding into the inserting space, the lock catch shell rotates on the outer side of the connector body along the circumferential direction to lock the abutting connector through the first lock catch protrusion, the first boss portion and the second boss portion are correspondingly provided with lock catch grooves along the axial direction, the locking mechanism is provided with a second lock catch protrusion capable of being matched and locked with the lock catch grooves of the first boss portion and the second boss portion simultaneously, and when the locking mechanism moves along the axial direction, the second lock catch protrusion can also release locking between the first boss portion and the second boss portion.

2. The electrical connector of claim 1, wherein: the locking mechanism further comprises a nut piece annularly arranged on the outer side of the lock catch shell, and the second lock catch bulges are uniformly arranged on the inner wall surface of the nut piece along the circumferential direction.

3. The electrical connector of claim 2, wherein: the locking mechanism further comprises a shockproof spring and a clamp spring, the shockproof spring is annularly arranged on the outer side of the main body portion, the clamp spring is located on the rear side of the shockproof spring, the nut piece covers the outer side of the shockproof spring, and the rear end of the nut piece is matched with the clamp spring in a positioning mode.

4. The electrical connector of claim 3, wherein: the locking mechanism further comprises a stop ring arranged on the outer side of the shockproof spring in a surrounding mode, the stop ring is located on the inner side of the nut piece and is provided with a rear stop portion protruding inwards in the radial direction, the rear stop portion stops at the shockproof spring from back to front in the axial direction, and the clamp spring stops at the rear stop portion from back to front in the axial direction.

5. The electrical connector of claim 3, wherein: the nut member includes a front stopper portion having a through hole with an inner diameter smaller than an outer diameter of the second boss portion to be stopped at a front side of the anti-vibration spring in an axial direction, and the second locking projection protrudes rearward from the front stopper portion in the axial direction to be locked in cooperation with the locking groove of the second boss portion.

6. The electrical connector of claim 3, wherein: the locking assembly further comprises a locking spring positioned at the rear side of the first boss part of the connector body, and the locking spring and the shockproof spring are fixedly held at the inner side and the outer side of the locking shell in the radial direction.

7. The electrical connector of claim 2, wherein: the locking groove of the second boss portion is defined as a positioning hole which penetrates through in the axial direction, and the movable distance of the nut member in the axial direction is smaller than the axial depth or the extension depth of the positioning hole.

8. The electrical connector of claim 1, wherein: the first locking projection is located on a front side of the second locking projection in the axial direction.

9. The electrical connector of claim 1, wherein: the electric connector also comprises a waterproof ring positioned at the joint of the butt joint part and the first boss part.

10. The electrical connector of claim 1, wherein: the electric connector comprises a plurality of conductive terminals fixed on the butt joint part and a pair of error-proof contact pins, and the first locking bulge and the error-proof contact pins are positioned on the same diameter of the butt joint part.