CN115395291A - Electric connector and locking device thereof - Google Patents

Abstract

The invention discloses a locking device for an electrical connector, which comprises a wire protection tail cover, a wire locking clamp and a wire protection housing, wherein the wire protection tail cover, the wire locking clamp and the wire protection housing are coaxially arranged, and the wire protection tail cover includes The tail cover shell and the limit structure, the limit structure and the tail cover shell are coaxially arranged, the tail cover shell has a threading end and a snap-in end respectively along the axis direction, and the wire protection tail cover has an accommodation cavity, the axis direction of the accommodation cavity is the same as the tail end The axial direction of the cover shell is consistent, the limit structure is set in the accommodation cavity, the limit structure is set close to the threading end, the lock wire clamp is installed in the accommodation cavity, and the lock wire clamp is located on the side of the limit structure facing the engaging end. A side of the wire locking clip facing the threading end is provided with several claws, and the wire protection shell is clamped on the engaging end of the wire protection tail cover. The locking device for the electrical connector of the present application adopts axial locking, which is simple to assemble, easy to operate, strong in locking reliability, and high in stability.

Description

A kind of electrical connector and its locking device

technical field

The present application relates to the technical field of electrical connectors, in particular to an electrical connector and a locking device thereof.

Background technique

With the rapid development of electronic technology, electrical connectors have been widely used. The anti-dropping structure of the electrical connector also presents diversification along with the development of the electrical connector. The current mainstream electrical connectors in the market mainly include circular electrical connectors and rectangular electrical connectors.

For the existing rectangular electrical connectors, the locking structures adopted include screw locking and buckle locking, etc., and some rectangular connectors are quickly locked by steel balls. The most widely used rectangular connector is screw attachment locking. Although the screw locking structure has the advantages of simple structure and reliable locking, it also has problems such as slow connection operation and low efficiency, which seriously affects work efficiency.

At the same time, there are some other locking devices on the market, such as the locking device disclosed in the patent DE202013101929U1. Although it solves the fast locking problem to a certain extent, its structure is relatively complicated, and it adopts radial locking. The degree or sealing is not good enough.

Therefore, in combination with the above-mentioned existing technical problems, it is necessary to propose a new technical solution.

Contents of the invention

It is an object of the present application to overcome the above-mentioned problems or to at least partially solve or alleviate the above-mentioned problems.

According to one aspect of the present application, a locking device for electrical connectors is provided, which is used to realize fast locking of electrical connectors and cables, including: a coaxially arranged wire protection tail cover, a wire locking clip and a wire protection shell,

The wire protection tail cap includes a tail cap housing with a housing cavity and a limiting structure located in the housing cavity, the axial direction of the housing cavity is consistent with the axial direction of the tail housing housing, the The tail cover shell has a threading end and a snap-in end respectively along its axial direction, the position-limiting structure is close to the threading end, and the two ends of the position-limiting structure in the length direction of the tail cover shell are respectively provided with first clips. The buckle belt, the length direction of the first buckle belt is consistent with the width direction of the tail cover shell, the width direction of the first buckle belt is consistent with the thickness direction of the tail cover shell, and the first The outward side of the buckle belt is provided with a first buckle structure;

The locking clip includes a clip body, the length direction of the clip body is consistent with the length direction of the wire protection tail cap, and the width direction of the clip body is consistent with the thickness direction of the wire protection tail cap , which is located in the accommodating cavity and on the side of the position-limiting structure facing the engaging end, the locking wire clip is provided with a second buckle belt on the side facing the threading end, and the first The length direction of the second buckle belt is consistent with the axial direction of the lock wire fastener, the width direction of the second buckle belt is consistent with the width direction of the main body of the fastener, and the second buckle belt is located on the Both ends in the length direction of the lock wire clamp, and the outward side of the second buckle belt is provided with a second buckle structure;

The wire protection housing is clamped on the locking end of the wire protection end cap, and the wire protection housing includes a housing body and a third buckle belt provided on the side of the housing body facing the wire protection end cap , the width direction of the housing main body is consistent with the length direction of the wire protection tail cap, the thickness direction of the housing body is consistent with the thickness direction of the wire protection tail cap, and the length direction of the third buckle belt is consistent with the The length direction of the housing body is consistent, the width direction of the third buckle belt is consistent with the thickness direction of the housing body, the third buckle belt is located on one side of the housing body in the length direction, and the The inward side of the third buckle belt is provided with a third buckle structure;

Wherein, the end of the first buckle belt corresponds to the end of the second buckle belt and is in the same plane, so that the first buckle structure on the first buckle belt is aligned with the first buckle structure on the first buckle belt. The second buckle structure on the two buckle belts is combined to form a spliced buckle structure, and the third buckle belt is engaged with the spliced buckle structure, thereby realizing fast locking of the cable.

Optionally, the clip main body is further provided with a first lug at a position corresponding to the second buckle strip, and the first lug is provided on the outward side of the second buckle strip, the A first card slot is formed between the first card ear and the second buckle belt, the axial direction of the first card slot is consistent with the axial direction of the main body of the clip, and the position-limiting structure is located on the tail cap Slots are formed between the two ends in the length direction of the shell and the inner wall of the tail cap shell, and the third buckle belt passes through the first slot and the notch in turn, and is spliced with the The buckle structure snaps together.

Optionally, the first buckle structure includes several spacing protrusions and/or limiting grooves; the second buckle structure includes several spacing protrusions and/or limiting grooves Groove; the third buckle structure includes a plurality of spaced limiting protrusions and/or limiting grooves.

Optionally, the position-limiting structure is provided with a first matching hole along its axial direction, the position-limiting structure is arranged coaxially with the tail cover shell, and the position-limiting structure is in the thickness direction of the tail cover shell There is a notch at the connection with the inner wall of the tail cap shell, and the notch communicates with the first matching hole, and the position corresponding to the notch on the inner wall of the tail cap shell is provided with a beveled boss, and the beveled boss One end of the ramp extends to the threading end, and the thickness of the end of the inclined-plane boss facing the threading end is greater than the thickness of the end of the inclined-plane boss facing the engaging end.

Optionally, the inclined-plane boss sequentially includes a first inclined-plane boss and a second inclined-plane boss along the width direction of the tail cap housing, the second inclined-plane boss is close to the threading end, and the first inclined-plane The slope of the slope of the boss is greater than the slope of the slope of the second slope of the boss.

Optionally, the clamp main body is provided with a second matching hole along its axial direction, and the lock wire clamp is provided with claws on the side facing the threading end, and the claws are respectively located in the second matching holes On both sides of the clamp main body in the width direction, the claw is provided with a convex structure on the side facing the second fitting hole, and the side of the claw away from the second fitting hole is designed as an inclined plane. The thickness of the claws decreases gradually from one end close to the main body of the clip to the direction away from the main body of the clip, and the claws are used for inserting into the accommodating cavity when the locking wire clip is installed in the accommodating cavity. inside the gap.

Optionally, the side of the tail cover shell close to the engaging end is provided with a groove for installing the lock wire clip, the position of the groove corresponds to the position of the notch, and the position of the lock is When the wire clip is installed in the accommodating cavity, both ends of the clip main body in the width direction are engaged in the groove.

Optionally, the housing main body is further provided with second clamping lugs on both sides in the width direction, and a second clamping slot for clamping with the main body of the electrical connector is formed in the second clamping clamping ears. The axis direction of the slot is consistent with the length direction of the housing main body.

Optionally, the housing main body is provided with a third matching hole along its axial direction, and a sealing ring is also provided between the wire locking clip and the wire protection housing, and the third matching hole faces the wire protection The opening at one end of the tail cap is flared, the sealing ring is installed in the third matching hole, and the axial direction of the sealing ring is consistent with the length direction of the wire protection housing.

According to another aspect of the present application, an electrical connector is provided, which is used for quickly locking the cable and the electrical connector body, including an electrical connector locking device, and the electrical connector locking device includes a coaxial And sequentially set the wire protection end cap, locking clip, sealing ring and wire protection shell on the cable, the cable is connected with the main body of the electrical connector, and the wire protection shell is clamped on the On the main body of the electrical connector, the sealing ring is located in the reaming hole of the third matching hole of the wire protection housing, the locking clip and the wire protection tail cover are clamped on the wire protection housing, In this way, the fast locking of the cable is realized.

Compared with the prior art, the protective wire housing of the electrical connector locking device of the present application has one or several beneficial effects as follows:

The electrical connector locking device of the present application combines the first buckle structure on the first buckle belt with the second buckle structure on the second buckle belt to form a splicing buckle structure, and then connects with the third buckle The third buckle structure on the belt is snapped together, so as to realize fast locking of the cable.

This application adopts the axial locking method, which has simple structure, convenient installation, low production cost and high stability; at the same time, a sealing ring is provided between the locking clip and the wire protection shell to increase the locking and sealing performance of the locking device .

In the electrical connector locking device of the present application, the claws of the locking clamps are matched with the inclined-plane bosses in the wire protection tail cover. The direction shrinks, thereby locking the cable firmly.

According to the following detailed description of specific embodiments of the application in conjunction with the accompanying drawings, those skilled in the art will be more aware of the above and other objectives, advantages and features of the application.

Description of drawings

Hereinafter, some specific embodiments of the present application will be described in detail with reference to the accompanying drawings in an exemplary rather than restrictive manner. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

FIG. 1 is an exploded schematic diagram of an electrical connector locking device provided in an embodiment of the present application;

Fig. 2 is a schematic structural view of the wire protection tail cover of the electrical connector locking device provided by the embodiment of the present application;

Fig. 3 is a schematic cross-sectional view in the length and width direction of the wire guard tail cover of the electrical connector locking device provided by the embodiment of the present application;

Fig. 4 is a schematic cross-sectional view in the direction of length and thickness of the wire guard tail cover of the electrical connector locking device provided by the embodiment of the present application;

Fig. 5 is a schematic structural view of the locking clip of the electrical connector locking device provided by the embodiment of the present application;

Fig. 6 is a schematic structural view of the locking wire clip of the electrical connector locking device provided in the embodiment of the present application in the side view direction;

Fig. 7 is a schematic cross-sectional view in the direction of width and thickness of the locking clip of the electrical connector locking device provided by the embodiment of the present application;

Fig. 8 is a schematic cross-sectional view of the locking wire clip in the length and thickness direction of the electrical connector locking device provided by the embodiment of the present application;

Fig. 9 is a schematic structural view of the protective wire housing of the electrical connector locking device provided by the embodiment of the present application;

Fig. 10 is a schematic structural view of the protective wire housing of the electrical connector locking device provided in the embodiment of the present application in the side view direction;

Fig. 11 is a schematic cross-sectional view in the length and width direction of the protective wire housing of the electrical connector locking device provided by the embodiment of the present application;

Fig. 12 is a schematic cross-sectional view in the direction of length and thickness of the protective wire housing of the electrical connector locking device provided by the embodiment of the present application;

Fig. 13 is an exploded schematic diagram of the installation position between the electrical connector locking device provided by the embodiment of the present application, the main body of the electrical connector and the cable;

Fig. 14 is a schematic diagram of the installation positions of the electrical connector locking device, the electrical connector body and the cable provided by the embodiment of the present application.

Reference signs:

1-wire protection tail cover, 10-tail cover shell, 11-limiting structure, 12-first matching hole, 13-notch,

14-the first buckle belt, 141-the first buckle structure, 142-the first smooth part,

143-the first buckle part, 15-the first notch, 16-the beveled boss, 161-the first beveled boss,

162-the second bevel boss, 17-groove, 18-notch, 19-reinforcing plate, 2-locking clip,

20-clip main body, 21-second buckle belt, 211-second buckle structure, 212-second smooth part,

213-second buckle part, 22-claw, 221-convex structure, 222-second notch,

23-the second matching hole, 24-the first lug, 25-the first card slot, 3-the wire protection shell, 30-the main body of the shell, 31-the third buckle belt, 311-the third buckle structure, 32- The third mating hole, 33-the second lug,

34-the second card slot, 35-the bayonet socket, 4-the sealing ring, 5-the main body of the electrical connector, 51-the hook, 6-the cable.

Detailed ways

FIG. 1 is an exploded schematic diagram of a locking device for an electrical connector provided by an embodiment of the present application. As shown in Figure 1, the electrical connector locking device may generally include: a wire protection tail cover 1, a wire locking clip 2 and a wire protection shell 3, and the wire protection tail cover 1, the locking wire clip 2 and the wire protection cover The wire housing 3 is arranged coaxially for fast locking of the electrical connector and the cable 6 .

In the embodiment of the present application, taking the assembly of the electrical connector locking device as an example, the axial direction of the electrical connector locking device is the axial direction of the cable 6 , that is, the X direction in FIG. 1 .

Fig. 2 is a schematic structural view of the wire protection end cap 1 of the electrical connector locking device provided by the embodiment of the present application;

Fig. 3 is a schematic cross-sectional view of the wire grommet 1 of the electrical connector locking device provided in the embodiment of the present application in the length and width direction; Fig. 4 is a wire grommet of the electrical connector locking device provided in the embodiment of the present application A schematic cross-sectional view of the cover 1 in the direction of length and thickness.

As shown in FIGS. 2 to 4 , the wire protection end cap 1 includes a tail cap shell 10 and a limiting structure 11 , and the tail cap shell 10 is preferably in the shape of a cuboid. The tail cap housing 10 has a threading end and a snapping end respectively along its width direction, and the width direction (X direction in FIG. 1 ) of the tail cap housing 10 is the axial direction. The tail cover shell 10 is provided with an accommodating cavity, and the axial direction of the accommodating cavity is consistent with the width direction (X direction in FIG. 1 ) of the tail cover shell 10 . The cross-sectional shape of the accommodating cavity is preferably a rectangle, that is, the tail cap shell 10 is square tube-shaped.

As shown in FIG. 2 to FIG. 4 , the limiting structure 11 is located in the accommodating cavity, and the limiting structure 11 is arranged coaxially with the tail cover shell 10 . The limiting structures 11 are respectively connected to the inner wall of the tail cap shell 10 in the thickness direction (Z direction in FIG. 1 ) of the tail cap shell 10 . Notches 13 are formed between the two ends of the limiting structure 11 in the length direction of the tail cap shell 10 (Y direction in FIG. 1 ) and the inner wall of the tail cap shell 10 respectively. The position-limiting structure 11 is provided with a first matching hole 12 along its axial direction (X direction in FIG. 1 ), and the first matching hole 12 is preferably racetrack-shaped. The limiting structure 11 is arranged close to the threading end. The locking wire clip 2 is installed in the accommodating cavity between the limiting structure 11 and the engaging end, that is, the locking wire locking element 2 is located at the side of the limiting structure 11 facing the engaging end. side.

As shown in Figures 2 to 4, the position-limiting structure 11 is respectively provided with a first notch 15 at the junction of the tail cover shell 10 in the thickness direction (Z direction in Figure 1) and the inner wall of the tail cover shell 10. , the first notch 15 communicates with the first matching hole 12 . A sloped boss 16 is provided at a position corresponding to the first notch 15 on the inner wall of the tail cover shell 10 . One end of the sloped boss 16 extends to the threading end, and the thickness of the sloped boss 16 toward the threading end is greater than the thickness of the sloped boss 16 toward the engaging end. The sloped boss 16 sequentially includes a first sloped boss 161 and a second sloped boss 162 along the width direction of the tail cover housing 10 (direction X in FIG. 1 ), and the second sloped boss 162 is close to the At the threading end, the slope of the first sloped boss 161 is greater than the slope of the second sloped boss 162 . This design can ensure that the inclined-plane boss 16 forms a transition between the end facing the engaging end and the inner wall of the tail cap shell 10, and can ensure that the locking wire clip 2 can be smoothly installed on the tail cap shell. within 10.

As shown in Figures 2 to 4, the two ends of the position-limiting structure 11 in the length direction of the tail cover shell 10 (Y direction in Figure 1) are respectively provided with a plurality of first buckle straps 14, the first The length direction of a buckle belt 14 is consistent with the width direction (X direction in Fig. 1) of the tail cap shell 10, the first buckle belt 14 is close to the threading end, and the first buckle belt 14 is The end surface is flush with the end surface of the threading end, and the width direction of the first buckle strip 14 is consistent with the thickness direction (Z direction in FIG. 1 ) of the tail cap shell 10 . As shown in Figure 2, the wire end cap 1 schematically shown in the figure is provided with a first buckle belt 14 at both ends of the limiting structure 11. Both ends can also be provided with a plurality of first buckle strips 14, such as two, three or other multiple, a plurality of first buckle strips 14 along the thickness direction of the tail cap shell 10 (direction Z in FIG. 1 ) Arranged in sequence. The first buckle strap 14 is provided with a first buckle structure 141 . As shown in FIGS. 2 and 3 , the first buckle structure 141 is disposed on a side of the first buckle belt 14 facing the notch 13 , that is, a side away from the first matching hole 12 .

As shown in FIG. 2 , the first buckle structure 141 includes several spacing protrusions, of course, the first buckle structure 141 can also be a number of spacing grooves, or It consists of a number of position-limiting protrusions and position-limiting grooves arranged according to certain rules. The length direction of the limiting protrusion or the limiting groove is consistent with the thickness direction (direction Z in FIG. 1 ) of the tail cover shell 10 .

As shown in FIGS. 2 and 3 , the first buckle strap 14 is arranged on the side of the limiting structure 11 facing the threading end, and the first buckle strap 14 includes a first smooth portion 142 and a first The buckle part 143 , the first smooth part 142 is connected with the limiting structure 11 . A side of the first smooth portion 142 facing the notch 13 is flush with an end corresponding to the limiting structure 11 , and the first buckling structure 141 is located at the first buckling portion 143 .

As shown in FIGS. 2 and 3 , grooves 17 are provided on the two inner walls of the tail cap shell 10 in the thickness direction (Z direction in FIG. 1 ) between the position-limiting structure 11 and the engaging end, The position of the groove 17 corresponds to the position of the first notch 15 . When the locking wire clip 2 is installed in the accommodating cavity of the tail cover shell 10 , the locking wire clip 2 is engaged in the groove 17 .

As shown in Figure 2, two notches 18 are respectively provided on the two side walls of the threading end in the thickness direction (Z direction in Fig. The position of the first buckle belt 14 is corresponding. The notch 18 is provided on the tail cap shell 10 to facilitate the processing of the first buckle structure 141 on the first buckle belt 14 during the production process. A reinforcing plate 19 is vertically provided on the inner wall of the tail cover shell 10 on the side of each notch 18 close to the first matching hole 12 . The lengthwise direction of the reinforcing plate 19 is consistent with the width direction (X direction in FIG. 1 ) of the tail cap shell 10, one end of the reinforcing plate 19 is flush with the threading end, and the other end of the reinforcing plate 19 is Extending to the limiting structure 11 , the reinforcing plate 19 is flush with the inner wall of the notch 18 close to the first matching hole 12 . By arranging the reinforcing plate 19 , on the one hand, the strength of the tail cover shell 10 can be increased, and on the other hand, it can also play a guiding role when processing the first buckle structure 141 .

Fig. 5 is a schematic structural diagram of the locking wire clip 2 of the electrical connector locking device provided by the embodiment of the present application;

Fig. 6 is a schematic structural view of the locking wire clip 2 of the electrical connector locking device provided by the embodiment of the present application in the side view direction; Fig. 7 is the locking wire clip 2 of the electrical connector locking device provided by the embodiment of the present application A schematic cross-sectional view in the direction of width and thickness; FIG. 8 is a schematic cross-sectional view in the direction of length and thickness of the wire locking clip 2 of the electrical connector locking device provided by the embodiment of the present application.

As shown in FIGS. 5 to 8 , the locking wire clip 2 includes a clip body 20 and several second buckle straps 21 and several claws 22 disposed on the clip body 20 . The length direction (Y direction in FIG. 1 ) of the clip main body 20 is consistent with the length direction (Y direction in FIG. 1 ) of the end cover 1, and the width direction (Z direction in FIG. 1 ) of the clip body 20 direction) is consistent with the thickness direction (direction Z in FIG. 1 ) of the wire protection tail cap 1 . The clamp body 20 is provided with a second fitting hole 23 along its axis direction (X direction in FIG. 1 ), that is, the axis direction of the second fit hole 23 (X direction in FIG. The axis direction (X direction in FIG. 1 ) is the same, the clip body 20 is annular, preferably racetrack annular, and the second fitting hole 23 is preferably racetrack-shaped. The second buckle belt 21 and the claw 22 are respectively arranged on the same side of the clamp body 20 in the axial direction (X direction in FIG. 1 ), that is, the side of the clamp body 20 facing the threading end. side. The length direction (X direction in FIG. 1 ) of the second buckle belt 21 and the length direction (X direction in FIG. 1 ) of the claw 22 are respectively in line with the axial direction (X direction in FIG. 1 ) of the clip body 20 . direction) are the same.

As shown in FIG. 5 , the second buckle belt 21 is provided with a second buckle structure 211 , and the second buckle structure 211 is arranged on the second buckle belt 21 away from the second matching hole 23 side. The second buckle structure 211 includes several spacing protrusions, of course, the second buckle structure 211 can be a number of spacing grooves, or a number of spacing protrusions and the limit groove are arranged according to certain rules. The plurality of second buckle straps 21 are respectively located on both sides of the second matching hole 23 in the length direction of the clip body 20 (direction Y in FIG. 1 ), and the width of the second buckle strap 21 is The direction (direction Z in FIG. 1 ) is consistent with the width direction (direction Z in FIG. 1 ) of the clip main body 20, and the length direction of the stop protrusion or the stop groove is consistent with the clip main body 20. The width direction (Z direction in Figure 1) is the same. As shown in Figure 5, the locking wire clip 2 schematically shown in the figure is provided with a second buckle belt 21 on both sides of the second matching hole 23, of course, in actual implementation, in the second Both sides of the mating hole 23 can also be provided with a plurality of second buckle straps 21, such as two, three or other multiple, a plurality of second buckle straps 21 along the width direction of the locking wire clip 2 (Fig. 1 in the Z direction) are arranged in sequence.

As shown in FIGS. 5 and 8 , the second buckle belt 21 sequentially includes a second smooth portion 212 and a second buckle portion 213 along its length direction (direction X in FIG. 1 ), and the second smooth portion 212 Connected with the clip main body 20 , the second buckle structure 211 is located at the second buckle portion 213 . When the locking wire clip 2 is installed in the accommodating chamber of the tail cap shell 10, the end of the first buckle belt 14 corresponds to the end of the second buckle belt 21 and is in the same position. In the plane, the first buckle structure 141 on the first buckle belt 14 is combined with the second buckle structure 211 on the second buckle belt 21 to form a joint buckle structure.

The groove 17 on the inner wall of the tail cover housing 10 is contoured to the clamp body 20 , that is, the shape of the clamp body 20 corresponds to the shape of the groove 17 . When the wire locking clip 2 is installed in the accommodating cavity of the tail cap shell 10 , both ends of the clip main body 20 in the width direction can just be engaged in the groove 17 . This structural design can not only limit the locking clamp 2, but also play a guiding role, so that the locking clamp 2 can be smoothly installed in the wire protection tail cover 1.

As shown in FIGS. 5 to 8 , the clip body 20 is further provided with a first lug 24 at a position corresponding to the second buckle belt 21 , and the first lug 24 is arranged on the second buckle. The second smooth part 212 of the belt 21 is away from the side of the second matching hole 23, and a first card slot 25 is formed between the first lug 24 and the second smooth part 212, and the first card slot The axis direction of 25 is consistent with the axis direction (X direction in FIG. 1 ) of the clip body 20 . When the wire locking clip 2 is installed in the accommodating cavity of the tail cap shell 10, the first slot 25 is in contact with the notch 13 on both sides of the limiting structure 11 of the wire protection tail cap 1. correspond.

As shown in FIGS. 5 to 8 , the plurality of claws 22 are respectively located on both sides of the second matching hole 23 in the width direction of the clamp body 20 (direction Z in FIG. 1 ), and the claws 22 The width direction is consistent with the length direction (Y direction in FIG. 1 ) of the clip body 20 . The claw 22 is provided with a protrusion structure 221 on the side facing the second matching hole 23, and the protrusion structure 221 includes several protrusions, and the length direction of the protrusions is in line with that of the clamp body 20. The length direction (Y direction in Figure 1) is consistent. As shown in Fig. 5, one claw 22 is arranged on both sides of the second fitting hole 23 schematically shown in the figure, of course, in actual implementation, the two sides of the second fitting hole 23 can also be respectively arranged Two, three or other multiple claws 22 are distributed along the length direction (Y direction in FIG. 1 ) of the clip body 20 respectively. The joint between the clamping claw 22 and the clamping body 20 is flush with one end of the clamping body 20 along its width direction (direction Z in FIG. 1 ), and the claw 22 is far away from the second fitting. One side of the hole 23 is designed with an inclined surface, and the thickness of the claw 22 gradually decreases from the end close to the main body 20 of the locking part to the direction away from the main body 20 of the locking part. When the wire locking clip 2 is installed in the accommodating cavity of the tail cover housing 10, the claw 22 of the locking wire clip 2 is inserted into the first stop of the limiting structure 11 of the wire protection tail cap 1. In the notch 15, with the locking of the locking device, the locking clip 2 is squeezed into the accommodating cavity of the wire protection tail cap 1, and the claw 22 is on the inner wall of the tail cap shell 10. Under the action of the inclined-plane boss 16 , it shrinks toward the direction close to the second fitting hole 23 , and then clamps the cable 6 passing through the second fitting hole 23 .

As shown in FIG. 5 , a second notch 222 is provided at the end of the claw 22 away from the main body 20 of the clip, and a plurality of the carding protrusions are respectively provided on both sides of the second notch 222 , located on the Several locking protrusions on the same side of the second notch 222 are respectively arranged at intervals along the length direction of the locking claw 22 . As shown in FIG. 5 to FIG. 7 , two locking protrusions are provided in each second notch 222 schematically in the figure, and of course, in actual implementation, there may be one, three or other multiples. Such a structural design can not only ensure the strength of the claw 22 but also enhance the clamping effect of the claw 22 on the cable 6 .

FIG. 9 is a schematic structural view of the protective wire housing 3 of the electrical connector locking device provided by the embodiment of the present application;

Figure 10 is a schematic structural view of the protective wire housing 3 of the electrical connector locking device provided in the embodiment of the present application in the side view direction; Figure 11 is a schematic diagram of the protective wire housing 3 of the electrical connector locking device provided in the embodiment of the present application A schematic cross-sectional view in the width direction; FIG. 12 is a schematic cross-sectional view in the long-thickness direction of the protective wire housing 3 of the electrical connector locking device provided by the embodiment of the present application.

As shown in FIG. 9 to FIG. 12 , the wire protection shell 3 is clamped on the clamping end of the wire protection tail cap 1 . The wire protection housing 3 includes a housing body 30 and several third buckle straps 31 . The housing body 30 is preferably in the shape of a cuboid. The width direction (Y direction in FIG. 1 ) of the housing main body 30 is consistent with the length direction (Y direction in FIG. 1 ) of the end cover 1, and the thickness direction (Z direction in FIG. 1 ) of the housing main body 30 It is consistent with the thickness direction (Z direction in FIG. 1 ) of the wire end cap 1 . The two ends of the housing main body 30 along its length direction (the X direction in FIG. 1 ) are the connecting end and the locking end respectively, wherein the locking end is the end of the housing main body 30 close to the wire protection end cap 1, The connecting end is the end of the housing body 30 away from the end cap 1 . The housing body 30 is provided with a third matching hole 32 along its length direction (X direction in FIG. 1 ), that is, a third matching hole 32 is opened along its axial direction (X direction in FIG. 1 ). Holes 32 respectively pass through the connecting end and the locking end. The third buckle strip 31 is disposed on a side of the housing body 30 facing the wire cover 1 , that is, the third buckle strip 31 is located on the side of the locking end. A plurality of the third buckle straps 31 are respectively arranged around the third matching holes 32 . A plurality of the third buckle straps 31 are symmetrically arranged on both sides of the third fitting hole 32 in the longitudinal direction of the housing body 30 (direction X in FIG. 1 ), and the lengthwise direction of the third buckle straps 31 is The length direction of the housing body 30 (direction X in FIG. 1 ) is consistent, and the width direction of the third buckle strap 31 is consistent with the direction of thickness of the housing body 30 (direction Z in FIG. 1 ). As shown in FIG. 9 , the housing main body 30 schematically shown in the figure is provided with a third buckle belt 31 on both sides of the third matching hole 32 , of course, in actual implementation, a third buckle belt 31 is provided in the third matching hole 32 The two sides of 32 can also be provided with a plurality of third buckle belts 31, such as two, three or other multiple, a plurality of third buckle belts 31 along the thickness direction of the shell main body 30 (Z direction in FIG. 1 ) are arranged in sequence. The third buckle belt 31 is provided with a third buckle structure 311 on the side facing the third fitting hole 32, and the third buckle structure 311 includes a plurality of spacing protrusions, of course, the The third buckle structure 311 may be a plurality of spaced limiting grooves, or may be composed of a number of limiting protrusions and limiting grooves arranged in a certain order. The length direction of the limiting protrusion or the limiting groove is consistent with the thickness direction (Z direction in FIG. 1 ) of the housing body 30 . When the wire protection shell 3 is clamped on the engaging end of the wire protection tail cap 1, the third buckle belt 31 passes through the first slot 25 and the notch 13 in turn, and the third buckle belt 31 passes through the first slot 25 and the notch 13 in turn, and the third The buckle structures 311 are engaged with the corresponding splicing buckle structures one by one, so as to realize fast locking of the cable 6 .

The end of the third buckle belt 31 away from the housing body 30 is provided with a chamfer, and the chamfer is located on the side of the third buckle belt 31 away from the third matching hole 32, as shown in Fig. 9 and Figure 11 shows. The setting of chamfering can ensure that the third buckle belt 31 can be smoothly and accurately inserted into the first slot 25 and the notch 13 in sequence.

The housing main body 30 is also provided with second lugs 33 on both sides of its width direction (Y direction in FIG. The locking slot 34 , the axis direction of the second locking slot 34 (direction X in FIG. 1 ) is consistent with the longitudinal direction of the housing body 30 (direction X in FIG. 1 ), as shown in FIGS. 9 to 11 .

A side of the second lug 33 corresponding to the connecting end is provided with a bayonet opening 35 , and the bayonet opening 35 communicates with the second bayonet slot 34 . The dimension of the bayonet opening 35 is smaller than the radial section dimension of the second bayonet slot 34 . Preferably, the length of the bayonet socket 35 in the thickness direction of the housing body 30 (direction Z in FIG. 1 ) is smaller than the length of the second slot 34 in the thickness direction of the housing body 30 (direction Z in FIG. 1 ). .

FIG. 13 is an exploded schematic diagram of the installation position between the electrical connector locking device provided by the embodiment of the present application, the electrical connector main body 5 and the cable 6 . As shown in Figure 13, a hook 51 is provided at one end of the main body of the electrical connector 5. When the locking device engages with the electrical connector, the hook 51 of the main body of the electrical connector 5 is inserted through the bayonet opening 35 into the The second card slot 34 is then engaged with the end of the second card ear 33 provided with the bayonet opening 35 . Preferably, the second locking slot 34 runs through the side of the second locking ear 33 corresponding to the locking end, and when the locking device engages with the electrical connector, it can pass through the second locking ear 33 as required. The opening corresponding to the side of the locking end separates the two, further enhancing the operability of the locking device.

In a further embodiment, a sealing ring 4 is further provided between the wire locking clip 2 and the wire protection housing 3 , as shown in FIG. 1 or FIG. 13 . The opening of one end of the third matching hole 32 facing the end cover 1 is designed to be flared, that is, the opening of the end of the third matching hole 32 corresponding to the locking end is designed to be flared, and the sealing ring 4 is installed In the third matching hole 32 , the axial direction of the sealing ring 4 (direction X in FIG. 1 ) is consistent with the longitudinal direction of the wire protection housing 3 (direction X in FIG. 1 ). By arranging a sealing ring 4 between the wire locking clip 2 and the wire protection casing 3, the sealing performance of the locking device can be effectively guaranteed.

FIG. 14 is a schematic diagram of the installation positions of the electrical connector locking device provided by the embodiment of the present application, the electrical connector body 5 and the cable 6 . The installation steps of the electrical connector locking device in this embodiment are as follows:

Firstly, the wire protection tail cover 1, the wire locking clip 2, the sealing ring 4 and the wire protection shell 3 are sequentially set on the cable 6, and then the cable 6 is connected to the main body of the electrical connector 5, and then the protection wire The shell 3 is clamped on the main body 5 of the electrical connector, and then the sealing ring 4 is moved into the reaming hole of the third matching hole 32 of the wire protection shell 3, and finally the locking clips are sequentially 2 and the wire protection end cap 1 are clamped on the wire protection housing 3, so as to realize fast locking of the cable 6, as shown in FIG. 14 .

It should be noted that, unless otherwise specified, technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which this application belongs.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, constructed, and operate in a particular orientation, and thus should not be construed as limiting of the application.

In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

The above is only a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in this application Replacement should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (10)

1. An electrical connector locking device for achieving quick locking of an electrical connector with a cable, comprising: a wire protecting tail cover, a wire locking clamping piece and a wire protecting shell which are coaxially arranged,

the wire protecting tail cover comprises a tail cover shell with an accommodating cavity and a limiting structure positioned in the accommodating cavity, the tail cover shell is respectively provided with a wire threading end and a clamping end along the axis direction, the limiting structure is close to the wire threading end, two ends of the limiting structure in the length direction of the tail cover shell are respectively provided with a first buckle belt, and one outward side of the first buckle belt is provided with a first buckle structure;

the wire locking clamping piece comprises a clamping piece main body, the wire locking clamping piece main body is positioned in the accommodating cavity and positioned on one side, facing the clamping end, of the limiting structure, a second clamping belt is arranged on one side, facing the wire penetrating end, of the wire locking clamping piece, the second clamping belt is positioned at two ends of the wire locking clamping piece in the length direction, and a second clamping structure is arranged on one outward side of the second clamping belt;

the wire protecting shell is clamped at the clamping end of the wire protecting tail cover and comprises a shell main body and a third clamping belt arranged on one side of the shell main body, which faces the wire protecting tail cover, the third clamping belt is positioned on one side of the shell main body in the length direction, and a third clamping structure is arranged on the inward side of the third clamping belt;

the end part of the first buckle belt corresponds to the end part of the second buckle belt and is positioned in the same plane, so that the first buckle structure on the first buckle belt and the second buckle structure on the second buckle belt are combined to form a splicing buckle structure, and the third buckle belt is clamped with the splicing buckle structure, so that the cable is quickly locked.

2. The locking device of an electrical connector according to claim 1, wherein a first engaging lug is further disposed at a position of the fastener body corresponding to the second fastening tape, the first engaging lug is disposed at an outward side of the second fastening tape, a first engaging groove is formed between the first engaging lug and the second fastening tape, notches are respectively formed between two ends of the limiting structure in a length direction of the tail cover housing and an inner wall of the tail cover housing, and the third fastening tape sequentially passes through the first engaging groove and the notches and is engaged with the splicing fastening structure.

3. The locking device of an electrical connector according to claim 1, wherein the first locking structure comprises a plurality of spacing protrusions and/or spacing grooves arranged at intervals; the second buckle structure comprises a plurality of limiting bulges and/or limiting grooves which are arranged at intervals; the third buckle structure comprises a plurality of limiting bulges and/or limiting grooves which are arranged at intervals.

4. The locking device of an electrical connector according to claim 1, wherein the limiting structure has a first mating hole along an axial direction thereof, the limiting structure has a notch at a connection position with an inner wall of the tail cover housing in a thickness direction of the tail cover housing, the notch is communicated with the first mating hole, the inner wall of the tail cover housing is provided with an inclined boss at a position corresponding to the notch, one end of the inclined boss extends to the threading end, and a thickness of an end of the inclined boss facing the threading end is greater than a thickness of an end of the inclined boss facing the engaging end.

5. The locking device of an electrical connector according to claim 4, wherein the inclined boss comprises a first inclined boss and a second inclined boss in sequence along the width direction of the tail cover housing, the second inclined boss is close to the threading end, and the inclined slope of the first inclined boss is greater than that of the second inclined boss.

6. The locking device of an electrical connector according to claim 4, wherein the locking member body is provided with a second mating hole along an axial direction thereof, a locking claw is provided at a side of the locking wire member facing the threading end, the locking claws are respectively provided at two sides of the second mating hole in a width direction of the locking member body, a locking protrusion is provided at a side of the locking claw facing the second mating hole, a side of the locking claw facing away from the second mating hole is designed to be an inclined surface, a thickness of the locking claw decreases progressively from a side close to the locking member body toward a side away from the locking member body, and the locking claw is adapted to be inserted into the notch when the locking wire member is installed in the accommodating cavity.

7. The locking device of claim 4, wherein a groove for installing the locking wire clip is formed on one side of the tail cap housing close to the engaging end, and the position of the groove corresponds to the position of the notch.

8. The electrical connector locking device according to claim 1, wherein the housing main body is further provided with second engaging lugs at two sides in the width direction, and second engaging grooves for engaging with the electrical connector main body are formed in the second engaging lugs.

9. The locking device of an electrical connector according to claim 1, wherein a third mating hole is formed in the housing main body along an axial direction of the housing main body, a sealing ring is further disposed between the wire locking clip and the wire protecting housing, an opening of one end of the third mating hole facing the wire protecting tail cover is flared, the sealing ring is mounted in the third mating hole, and the axial direction of the sealing ring is consistent with the length direction of the wire protecting housing.

10. The utility model provides an electric connector for lock cable and electric connector main part fast, its characterized in that, including electric connector locking device, electric connector locking device includes coaxial setting and overlaps in proper order and establish protect line tail-hood, locking wire fastener, sealing washer and protect line shell on the cable, the cable with the electric connector main part is connected, protect line shell joint is in the electric connector main part, the sealing washer is located in the reaming of the third mating holes of protect line shell, the locking wire fastener reaches protect line tail-hood joint is in on the protect line shell to the realization is to the quick locking of cable.

Images