An electrical connector and its locking device

Abstract

This invention discloses an electrical connector locking device, comprising a cable sheath, a locking clip, and a cable sheath housing. The cable sheath, locking clip, and cable sheath housing are coaxially arranged. The cable sheath includes a sheath housing and a limiting structure, which are coaxially arranged with the sheath housing. The sheath housing has a threading end and a locking end along its axial direction. The cable sheath has a receiving cavity, the axis of which is aligned with the axis of the sheath housing. The limiting structure is located within the receiving cavity, near the threading end. The locking clip is installed within the receiving cavity, located on the side of the limiting structure facing the locking end. The locking clip has several claws on the side facing the threading end. The cable sheath housing is engaged with the locking end of the cable sheath. The electrical connector locking device of this application uses axial locking, is simple to assemble, easy to operate, has strong locking reliability, and high stability.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and in particular to an electrical connector and its locking device. Background Technology

[0002] With the rapid development of electronic technology, electrical connectors have been widely used. The anti-disengagement structures of electrical connectors have also diversified along with this development. Currently, the mainstream electrical connectors on the market mainly include circular electrical connectors and rectangular electrical connectors.

[0003] Existing rectangular electrical connectors employ various locking mechanisms, including screw locking and snap-locking, with some also using ball-operated quick-locking. Screw locking is the most widely used method for rectangular connectors. While screw locking offers advantages such as simplicity and reliable locking, it also suffers from slow connection operations and low efficiency, significantly impacting work efficiency.

[0004] Meanwhile, there are other locking devices on the market, such as the locking device disclosed in patent DE202013101929U1. Although it solves the problem of quick locking to some extent, its structure is relatively complex and it uses radial locking, which is not good enough in terms of either locking degree or sealing performance.

[0005] Therefore, considering the aforementioned technical problems, it is necessary to propose a new technical solution. Summary of the Invention

[0006] The purpose of this application is to overcome the above-mentioned problems or at least partially solve or mitigate them.

[0007] According to one aspect of this application, an electrical connector locking device is provided for quickly locking an electrical connector to a cable, comprising: a coaxially arranged cable end cap, a cable locking clip, and a cable protective housing.

[0008] The cable protection cap includes a cap shell with a receiving cavity and a limiting structure located within the receiving cavity. The axial direction of the receiving cavity is consistent with the axial direction of the cap shell. The cap shell has a cable threading end and a locking end along its axial direction. The limiting structure is close to the cable threading end. The limiting structure has a first buckle band at each end of the cap shell along its length. The length direction of the first buckle band is consistent with the width direction of the cap shell. The width direction of the first buckle band is consistent with the thickness direction of the cap shell. A first buckle structure is provided on the outward side of the first buckle band.

[0009] The locking clip includes a clip body, the length direction of which is consistent with the length direction of the cable protection end cap, and the width direction of which is consistent with the thickness direction of the cable protection end cap. It is located in the receiving cavity and on the side of the limiting structure facing the engaging end. The locking clip is provided with a second buckle band on the side facing the threading end. The length direction of the second buckle band is consistent with the axial direction of the locking clip, and the width direction of the second buckle band is consistent with the width direction of the clip body. The second buckle band is located at both ends in the length direction of the locking clip, and a second buckle structure is provided on the outward side of the second buckle band.

[0010] The cable protection shell is snapped onto the engaging end of the cable protection tail cover. The cable protection shell includes a shell body and a third buckle strap disposed on the side of the shell body facing the cable protection tail cover. The width direction of the shell body is consistent with the length direction of the cable protection tail cover, the thickness direction of the shell body is consistent with the thickness direction of the cable protection tail cover, the length direction of the third buckle strap is consistent with the length direction of the shell body, the width direction of the third buckle strap is consistent with the thickness direction of the shell body, the third buckle strap is located on one side of the length direction of the shell body, and the inward side of the third buckle strap is provided with a third buckle structure.

[0011] The ends of the first buckle strap and the second buckle strap are corresponding to each other and are in the same plane, so that the first buckle structure on the first buckle strap and the second buckle structure on the second buckle strap are combined to form a spliced ​​buckle structure. The third buckle strap is engaged with the spliced ​​buckle structure, thereby realizing the quick locking of the cable.

[0012] Optionally, the main body of the clip is further provided with a first ear corresponding to the position of the second buckle strap. The first ear is located on the outward side of the second buckle strap, and a first groove is formed between the first ear and the second buckle strap. The axial direction of the first groove is consistent with the axial direction of the main body of the clip. The limiting structure forms a slot between its two ends in the length direction of the tail cover shell and the inner wall of the tail cover shell, respectively. The third buckle strap passes through the first groove and the slot in sequence and engages with the splicing buckle structure.

[0013] Optionally, the first buckle structure includes a plurality of spaced-apart limiting protrusions and / or limiting grooves; the second buckle structure includes a plurality of spaced-apart limiting protrusions and / or limiting grooves; and the third buckle structure includes a plurality of spaced-apart limiting protrusions and / or limiting grooves.

[0014] Optionally, the limiting structure has a first mating hole along its axial direction. The limiting structure is coaxially arranged with the tail cap housing. The limiting structure has a notch at the connection between the tail cap housing and the inner wall of the tail cap housing in the thickness direction, and the notch communicates with the first mating hole. The inner wall of the tail cap housing has a beveled boss at the position corresponding to the notch. One end of the beveled boss extends to the threading end, and the thickness of the beveled boss facing the threading end is greater than the thickness of the beveled boss facing the engaging end.

[0015] Optionally, the inclined boss includes a first inclined boss and a second inclined boss in sequence along the width direction of the tail cap housing. The second inclined boss is close to the wire threading end, and the slope of the first inclined boss is greater than the slope of the second inclined boss.

[0016] Optionally, the main body of the locking device has a second mating hole along its axial direction, and the locking device has a claw on the side facing the threading end. The claws are respectively located on both sides of the second mating hole in the width direction of the main body of the locking device. The side of the claw facing the second mating hole has a protruding structure. The side of the claw away from the second mating hole is designed with a bevel. The thickness of the claw decreases from the end near the main body of the locking device to the side away from the main body of the locking device. The claw is used to insert into the notch when the locking device is installed in the receiving cavity.

[0017] Optionally, the tail cap housing has a groove for installing the locking clip on one side near the engaging end. The position of the groove corresponds to the position of the notch. When the locking clip is installed in the receiving cavity, the two ends of the clip body in the width direction engage in the groove.

[0018] Optionally, the housing body is further provided with second latches on both sides in the width direction, and a second slot is formed in the second latch for engaging with the electrical connector body, the axis of the second slot being consistent with the length direction of the housing body.

[0019] Optionally, the outer casing body has a third mating hole along its axial direction, and a sealing ring is provided between the locking clip and the wire protection outer casing. The third mating hole has an flared opening at one end facing the wire protection tail cover. The sealing ring is installed in the third mating hole, and the axial direction of the sealing ring is consistent with the length direction of the wire protection outer casing.

[0020] According to another aspect of this application, an electrical connector is provided for quickly locking a cable to the connector body. The connector includes a locking device comprising a cable sheath, a locking clip, a sealing ring, and a cable sheath, coaxially arranged and sequentially sleeved on the cable. The cable is connected to the connector body, the cable sheath is snapped onto the connector body, the sealing ring is located within an enlarged hole of a third mating hole in the cable sheath, and the locking clip and the cable sheath are snapped onto the cable sheath, thereby achieving rapid locking of the cable.

[0021] Compared with the prior art, the cable housing of the electrical connector locking device of this application has one or more of the following advantages:

[0022] The electrical connector locking device of this application combines a first snap structure on a first snap band with a second snap structure on a second snap band to form a spliced ​​snap structure, which is then snapped into a third snap structure on a third snap band, thereby achieving rapid locking of the cable.

[0023] This application adopts an axial locking method, which has a simple structure, is easy to install, has 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.

[0024] The electrical connector locking device of this application has a locking claw that engages with a sloping boss inside the cable protection end cover. When the device is locked, the claw retracts towards the mating hole under the action of the sloping boss, thereby firmly locking the cable.

[0025] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this application in conjunction with the accompanying drawings. Attached Figure Description

[0026] The following sections will describe some specific embodiments of this application in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0027] Figure 1 An exploded view of the electrical connector locking device provided in the embodiments of this application;

[0028] Figure 2 This is a schematic diagram of the cable guard tail cap of the electrical connector locking device provided in the embodiments of this application;

[0029] Figure 3 A cross-sectional view of the cable guard tail cover of the electrical connector locking device provided in the embodiments of this application in the length and width direction;

[0030] Figure 4 A cross-sectional view of the cable guard tail cover of the electrical connector locking device provided in the embodiments of this application in the length-thickness direction;

[0031] Figure 5 This is a schematic diagram of the locking clip of the electrical connector locking device provided in the embodiments of this application;

[0032] Figure 6 A schematic diagram of the locking clip of the electrical connector locking device provided in the embodiments of this application from a side view direction;

[0033] Figure 7 A cross-sectional view of the locking clip of the electrical connector locking device provided in the embodiments of this application in the width-thickness direction;

[0034] Figure 8 A cross-sectional view of the locking clip of the electrical connector locking device provided in the embodiments of this application in the length-thickness direction;

[0035] Figure 9 This is a schematic diagram of the wire housing of the electrical connector locking device provided in the embodiments of this application;

[0036] Figure 10 A schematic diagram of the wire housing of the electrical connector locking device provided in the embodiments of this application, viewed from the side.

[0037] Figure 11 A cross-sectional view of the wire housing of the electrical connector locking device provided in the embodiments of this application in the length and width directions;

[0038] Figure 12 A cross-sectional view of the wire housing of the electrical connector locking device provided in the embodiments of this application in the length-thickness direction;

[0039] Figure 13 An exploded view of the installation position between the electrical connector locking device and the electrical connector body and cable provided in the embodiments of this application;

[0040] Figure 14 This is a schematic diagram showing the installation positions of the electrical connector locking device, the electrical connector body, and the cable provided in the embodiments of this application.

[0041] Figure label:

[0042] 1-Wire protection cap, 10-Cap outer shell, 11-Limiting structure, 12-First mating hole, 13-Slot,

[0043] 14-First buckle strap, 141-First buckle structure, 142-First smooth portion,

[0044] 143 - First buckle part, 15 - First notch, 16 - sloping boss, 161 - First sloping boss

[0045] 162-Second inclined boss, 17-Groove, 18-Notch, 19-Reinforcing plate, 2-Wire locking clip,

[0046] 20 - Main body of the clip; 21 - Second buckle strap; 211 - Second buckle structure; 212 - Second smooth part.

[0047] 213 - Second latching part, 22 - Claw, 221 - Claw protrusion structure, 222 - Second notch

[0048] 23-Second mating hole, 24-First latch, 25-First slot, 3-Wire protection shell, 30-Shell body, 31-Third buckle strap, 311-Third buckle structure, 32-Third mating hole, 33-Second latch.

[0049] 34-Second slot, 35-Bayonet, 4-Sealing ring, 5-Electrical connector body, 51-Hook, 6-Cable. Detailed Implementation

[0050] Figure 1 An exploded view of the electrical connector locking device provided in an embodiment of this application. Figure 1 As shown, the electrical connector locking device generally includes: a cable end cap 1, a cable locking clip 2, and a cable protection housing 3. The cable end cap 1, the cable locking clip 2, and the cable protection housing 3 are coaxially arranged to achieve rapid locking of the electrical connector and the cable 6.

[0051] In this embodiment of the 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... Figure 1 The X direction in the equation.

[0052] Figure 2 This is a schematic diagram of the structure of the cable guard end cap 1 of the electrical connector locking device provided in the embodiments of this application;

[0053] Figure 3 A cross-sectional view of the wire guard cap 1 of the electrical connector locking device provided in the embodiments of this application in the length and width direction; Figure 4 This is a cross-sectional view of the wire guard cap 1 of the electrical connector locking device provided in the embodiment of this application in the length-thickness direction.

[0054] like Figures 2 to 4 As shown, the cable guard cap 1 includes a cap housing 10 and a limiting structure 11. The cap housing 10 is preferably rectangular. The cap housing 10 has a cable threading end and a locking end along its width direction. Figure 1The axial direction is (X-direction). The tail cap housing 10 has a receiving cavity, the axial direction of which is parallel to the width direction of the tail cap housing 10. Figure 1 (in the X direction) is consistent. The cross-sectional shape of the accommodating cavity is preferably rectangular, that is, the tail cap shell 10 is square tubular.

[0055] like Figures 2 to 4 As shown, the limiting structure 11 is located within the accommodating cavity, and the limiting structure 11 is coaxially arranged with the tail cap housing 10. The limiting structure 11 is located in the thickness direction of the tail cap housing 10. Figure 1 The limiting structure 11 is connected to the inner wall of the tail cap housing 10 in the Z-direction (Z-direction). The limiting structure 11 is located in the length direction of the tail cap housing 10 (Z-direction). Figure 1 The two ends of the limiting structure 11 in the Y direction are respectively formed with the inner wall of the tail cover shell 10. The limiting structure 11 is located along its axial direction ( Figure 1 A first mating hole 12 is provided in the X direction, and the first mating hole 12 is preferably racetrack-shaped. The limiting structure 11 is disposed near the threading end. The locking clip 2 is installed in the receiving cavity between the limiting structure 11 and the engaging end, that is, the locking clip 2 is located on the side of the limiting structure 11 facing the engaging end.

[0056] like Figures 2 to 4 As shown, the limiting structure 11 is located in the thickness direction of the tail cap outer shell 10 ( Figure 1 A first notch 15 is provided at the connection point between the tail cap housing 10 and the inner wall of the tail cap housing 10 (in the Z direction), and the first notch 15 communicates with the first mating hole 12. A beveled boss 16 is provided on the inner wall of the tail cap housing 10 corresponding to the first notch 15. One end of the beveled boss 16 extends to the threading end, and the thickness of the beveled boss 16 facing the threading end is greater than the thickness of the beveled boss 16 facing the engaging end. The beveled boss 16 extends along the width direction of the tail cap housing 10 (in the Z direction). Figure 1 The device (in the X direction) includes a first inclined boss 161 and a second inclined boss 162, with the second inclined boss 162 located near the threading end. The slope of the first inclined boss 161 is greater than that of the second inclined boss 162. This design ensures that the inclined boss 161 forms a transition with the inner wall of the tail cap housing 10 at the end facing the engaging end, thus ensuring that the locking clip 2 can be smoothly installed inside the tail cap housing 10.

[0057] like Figures 2 to 4 As shown, the limiting structure 11 is located in the length direction of the tail cap outer shell 10 ( Figure 1Several first buckle straps 14 are respectively provided at both ends of the tail cap housing 10 in the Y direction. The length direction of the first buckle straps 14 is parallel to the width direction of the tail cap housing 10. Figure 1 (in the X direction) aligned, the first buckle strap 14 is close to the threading end, the end face of the first buckle strap 14 is flush with the end face of the threading end, and the width direction of the first buckle strap 14 is aligned with the thickness direction of the tail cap shell 10. Figure 1 (In the Z-direction) Consistent. For example... Figure 2 As shown in the figure, the wire protection cap 1 schematically illustrates that a first buckle strap 14 is provided at each end of the limiting structure 11. Of course, in specific implementation, multiple first buckle straps 14 can also be provided at both ends of the limiting structure 11, such as two, three or more, with the multiple first buckle straps 14 extending along the thickness direction of the cap shell 10. Figure 1 Arranged sequentially in the Z-direction. The first buckle strap 14 is provided with a first buckle structure 141. For example... Figure 2 and Figure 3 As shown, the first buckle structure 141 is located on the side of the first buckle band 14 facing the slot 13, that is, on the side away from the first mating hole 12.

[0058] like Figure 2 As shown, the first buckle structure 141 includes a plurality of spaced-apart limiting protrusions. Alternatively, the first buckle structure 141 can also be a plurality of spaced-apart limiting grooves, or it can be composed of a plurality of limiting protrusions and limiting grooves arranged in a certain pattern. The length direction of the limiting protrusions or the limiting grooves is parallel to the thickness direction of the tail cap outer shell 10. Figure 1 (in the Z direction) Consistent.

[0059] like Figure 2 and Figure 3 As shown, the first buckle strap 14 is disposed on the side of the limiting structure 11 facing the threaded end. The first buckle strap 14 includes a first smooth portion 142 and a first buckle portion 143. The first smooth portion 142 is connected to the limiting structure 11. The side of the first smooth portion 142 facing the slot 13 is flush with the end of the limiting structure 11 corresponding to it. The first buckle structure 141 is located at the first buckle portion 143.

[0060] like Figure 2 and Figure 3 As shown, the tail cap outer shell 10 between the limiting structure 11 and the engaging end is in the thickness direction ( Figure 1 The two inner walls in the Z-direction are provided with grooves 17, the positions of which correspond to the positions of the first notch 15. When the locking clip 2 is installed in the receiving cavity of the tail cover housing 10, the locking clip 2 engages in the grooves 17.

[0061] like Figure 2 As shown, the threading end is located in the thickness direction of the tail cap outer shell 10. Figure 1 Two notches 18 are respectively formed on the two side walls of the tail cap housing 10 (in the Z direction), and the positions of the notches 18 correspond to the positions of the first buckle strap 14. Forming the notches 18 on the tail cap housing 10 facilitates the processing of the first buckle structure 141 on the first buckle strap 14 during the manufacturing process. A reinforcing plate 19 is also vertically provided on the inner wall of the tail cap housing 10 on the side of each notch 18 near the first mating hole 12. The length direction of the reinforcing plate 19 is perpendicular to the width direction of the tail cap housing 10. Figure 1 (in the X direction) aligned with the threading end, one end of the reinforcing plate 19 is flush with the threading end, and the other end of the reinforcing plate 19 extends to the limiting structure 11. The reinforcing plate 19 is flush with the inner wall of the recess 18 near the first mating hole 12. By providing the reinforcing plate 19, the strength of the tail cap shell 10 can be increased, and it can also serve as a guide when processing the first snap-fit ​​structure 141.

[0062] Figure 5 A schematic diagram of the locking clip 2 of the electrical connector locking device provided in the embodiments of this application;

[0063] Figure 6 A side view schematic diagram of the locking clip 2 of the electrical connector locking device provided in the embodiments of this application; Figure 7 A cross-sectional view of the locking clip 2 of the electrical connector locking device provided in the embodiments of this application in the width-thickness direction; Figure 8 This is a cross-sectional view of the locking clip 2 of the electrical connector locking device provided in the embodiment of this application in the length-thickness direction.

[0064] like Figures 5 to 8 As shown, the locking clip 2 includes a clip body 20 and a plurality of second buckle straps 21 and a plurality of claws 22 disposed on the clip body 20. The length direction of the clip body 20 ( Figure 1 (in the Y direction) and the length direction of the wire protection cap 1 (in the Y direction) Figure 1 The width direction of the card body 20 is consistent with the Y direction. Figure 1 (in the Z direction) and the thickness direction of the wire protection cap 1 (in the Z direction) Figure 1 The card body 20 is aligned with its axial direction (Z-direction). Figure 1 A second mating hole 23 is provided in the X direction, that is, in the axial direction of the second mating hole 23 ( Figure 1 (in the X direction) and the axial direction of the card body 20 ( Figure 1The main body 20 of the locking component is annular, preferably racetrack-shaped, and the second mating hole 23 is preferably racetrack-shaped. The second buckle strap 21 and the claw 22 are respectively disposed on the main body 20 of the locking component in the axial direction (X direction). Figure 1 On the same side in the X direction, that is, the side of the clip body 20 facing the threaded end. The length direction of the second buckle strap 21 ( Figure 1 (in the X direction) and the length direction of the claw 2 ... Figure 1 The X-direction is respectively perpendicular to the axial direction of the card body 20. Figure 1 (in the X direction) Consistent.

[0065] like Figure 5 As shown, the second buckle band 21 is provided with a second buckle structure 211, which is located on the side of the second buckle band 21 away from the second mating hole 23. The second buckle structure 211 includes a plurality of spaced-apart limiting protrusions. Of course, the second buckle structure 211 can be a plurality of spaced-apart limiting grooves, or it can be composed of a plurality of limiting protrusions and limiting grooves arranged in a certain pattern. A plurality of second buckle bands 21 are respectively located in the second mating hole 23 along the length direction of the clamping body 20. Figure 1 On both sides of the second buckle strap 21 in the width direction (in the Y direction), Figure 1 (in the Z direction) and the width direction of the card body 20 (in the Z direction) Figure 1 The length direction of the limiting protrusion or the limiting groove is consistent with the width direction of the card body 20 (in the Z direction). Figure 1 (In the Z-direction) Consistent. For example... Figure 5 As shown in the figure, the locking clip 2 schematically illustrates that a second buckle strap 21 is provided on each side of the second mating hole 23. Of course, in specific implementation, multiple second buckle straps 21 can also be provided on both sides of the second mating hole 23, such as two, three or more, with the multiple second buckle straps 21 extending along the width direction of the locking clip 2. Figure 1 Arranged sequentially in the Z-direction.

[0066] like Figure 5 and Figure 8 As shown, the second buckle strap 21 is along its length direction ( Figure 1The locking clip 2 (in the X direction) sequentially includes a second smooth portion 212 and a second snap-fit ​​portion 213. The second smooth portion 212 is connected to the main body 20 of the clip, and the second snap-fit ​​structure 211 is located in the second snap-fit ​​portion 213. When the locking clip 2 is installed in the receiving cavity of the tail cover housing 10, the end of the first snap-fit ​​band 14 corresponds to the end of the second snap-fit ​​band 21 and is in the same plane, so that the first snap-fit ​​structure 141 on the first snap-fit ​​band 14 and the second snap-fit ​​structure 211 on the second snap-fit ​​band 21 combine to form a spliced ​​snap-fit ​​structure.

[0067] The groove 17 on the inner wall of the tail cap housing 10 is designed to mimic the shape of the locking body 20, meaning the shape of the locking body 20 corresponds to the shape of the groove 17. When the locking clip 2 is installed in the receiving cavity of the tail cap housing 10, both ends of the locking body 20 in the width direction can be engaged in the groove 17. This structural design not only limits the locking clip 2 but also serves as a guide, facilitating the smooth installation of the locking clip 2 inside the cable protection tail cap 1.

[0068] like Figures 5 to 8 As shown, the main body 20 of the card holder is further provided with a first latch 24 corresponding to the position of the second buckle strap 21. The first latch 24 is located on the side of the second smooth portion 212 of the second buckle strap 21 away from the second mating hole 23. A first slot 25 is formed between the first latch 24 and the second smooth portion 212. The axial direction of the first slot 25 is parallel to the axial direction of the main body 20. Figure 1 (in the X direction) aligned. When the locking clip 2 is installed in the receiving cavity of the tail cap housing 10, the first slot 25 corresponds to the slots 13 on both sides of the limiting structure 11 of the tail cap 1.

[0069] like Figures 5 to 8 As shown, several of the claws 22 are respectively located in the second mating hole 23 in the width direction of the card body 20. Figure 1 On both sides of the Z-direction, the width direction of the claw 22 is parallel to the length direction of the main body 20. Figure 1 The claw 22 is aligned with the Y-direction. A protruding structure 221 is provided on the side of the claw 22 facing the second mating hole 23. The protruding structure 221 includes several protrusions, the length direction of which is aligned with the length direction of the main body 20. Figure 1 (In the Y direction) Consistent. For example... Figure 5 As shown in the figure, a claw 22 is schematically provided on each side of the second mating hole 23. Of course, in actual implementation, two, three or more claws 22 can also be provided on each side of the second mating hole 23, with the multiple claws 22 extending along the length direction of the clamping body 20. Figure 1 The claws 22 are distributed along the width direction (Y-direction). The connection between the claw 22 and the main body 20 is perpendicular to the main body 20 along its width direction (Y-direction). Figure 1 One end of the locking clip 22 is flush with the second mating hole 23, and the side of the clip 22 away from the second mating hole 23 is designed with an angle. The thickness of the clip 22 decreases from the end near the main body 20 to the end away from the main body 20. When the locking clip 2 is installed in the receiving cavity of the tail cover housing 10, the clip 22 of the locking clip 2 is inserted into the first notch 15 of the limiting structure 11 of the tail cover 1. As the locking device is tightened, the locking clip 2 is squeezed into the receiving cavity of the tail cover 1. Under the action of the inclined boss 16 on the inner wall of the tail cover housing 10, the clip 22 retracts towards the second mating hole 23, thereby clamping the cable 6 passing through the second mating hole 23.

[0070] like Figure 5 As shown, a second notch 222 is provided at the end of the claw 22 away from the main body 20 of the card. Several card protrusions are respectively provided on both sides of the second notch 222, and the several card protrusions located on the same side of the second notch 222 are spaced apart along the length direction of the claw 22. Figures 5 to 7 As shown in the figure, two protrusions are schematically provided in each of the second notches 222. Of course, in actual implementation, there can be one, three, or other protrusions. This structural design can ensure the strength of the claws 22 while also enhancing the clamping effect of the claws 22 on the cable 6.

[0071] Figure 9 This is a schematic diagram of the wire housing 3 of the electrical connector locking device provided in the embodiments of this application;

[0072] Figure 10 This is a side view schematic diagram of the wire housing 3 of the electrical connector locking device provided in the embodiments of this application; Figure 11 A cross-sectional view of the wire housing 3 of the electrical connector locking device provided in the embodiments of this application in the length and width directions; Figure 12 This is a cross-sectional view of the wire housing 3 of the electrical connector locking device provided in the embodiment of this application in the length-thickness direction.

[0073] like Figures 9 to 12 As shown, the cable protection shell 3 is snapped onto the engaging end of the cable protection tail cover 1. The cable protection shell 3 includes a shell body 30 and a plurality of third buckle straps 31. The shell body 30 is preferably rectangular. The width direction of the shell body 30 ( Figure 1 (in the Y direction) and the length direction of the wire protection cap 1 (in the Y direction) Figure 1 The thickness direction of the outer shell body 30 is consistent with the Y direction. Figure 1(in the Z direction) and the thickness direction of the wire protection cap 1 (in the Z direction) Figure 1 Consistent along the Z-direction. The outer shell body 30 is aligned along its length direction (Z-direction). Figure 1 The two ends of the outer shell body 30 (in the X direction) are a connecting end and a locking end, respectively. The locking end is the end of the outer shell body 30 closer to the cable protection end cover 1, while the connecting end is the end of the outer shell body 30 away from the cable protection end cover 1. The inner length direction of the outer shell body 30 (…) Figure 1 A third mating hole 32 is provided in the X direction, that is, along its axial direction ( Figure 1 A third mating hole 32 is provided in the X direction, and the third mating hole 32 passes through the connecting end and the locking end respectively. The third buckle band 31 is provided on the side of the outer shell body 30 facing the cable protection end cover 1, that is, the third buckle band 31 is located on the side of the locking end. A plurality of the third buckle bands 31 are respectively arranged around the third mating hole 32. A plurality of third buckle bands 31 are respectively symmetrically arranged in the third mating hole 32 in the length direction of the outer shell body 30 (in the X direction). Figure 1 On both sides of the central X direction, the length direction of the third buckle strap 31 is parallel to the length direction of the outer shell body 30. Figure 1 The width direction of the third buckle strap 31 is consistent with the thickness direction of the outer shell body 30 (in the X direction). Figure 1 (In the Z-direction) Consistent. For example... Figure 9 As shown in the figure, the outer shell body 30 schematically displays a third buckle strap 31 on each side of the third mating hole 32. Of course, in specific implementations, multiple third buckle straps 31 can also be provided on both sides of the third mating hole 32, such as two, three or more, with the multiple third buckle straps 31 extending along the thickness direction of the outer shell body 30. Figure 1 Arranged sequentially in the Z-direction. The third buckle band 31 has a third buckle structure 311 on the side facing the third mating hole 32. The third buckle structure 311 includes several spaced-apart limiting protrusions. Alternatively, the third buckle structure 311 can be several spaced-apart limiting grooves, or it can be composed of several limiting protrusions and limiting grooves arranged in a certain pattern. The length direction of the limiting protrusions or the limiting grooves is parallel to the thickness direction of the outer shell body 30. Figure 1 (Z-direction) Consistent. When the cable sheath 3 is snapped into the engaging end of the cable sheath 1, the third buckle strap 31 passes through the first slot 25 and the opening 13 in sequence, and the third buckle structure 311 engages with the corresponding splicing buckle structure one by one, thereby achieving quick locking of the cable 6.

[0074] The third buckle strap 31 has a chamfer at one end away from the outer shell body 30. The chamfer is located on the side of the third buckle strap 31 away from the third mating hole 32, such as... Figure 9 and Figure 11 As shown. The chamfering design ensures that the third buckle strap 31 can be smoothly and accurately inserted into the first slot 25 and the opening 13 in sequence.

[0075] The outer shell body 30 in its width direction ( Figure 1 On both sides (in the Y direction), second latches 33 are respectively provided. Each second latch 33 has a second slot 34 formed within it for engaging with the electrical connector body 5. The axial direction of the second slot 34 (in the Y direction) Figure 1 (in the X direction) and the length direction of the outer shell body 30 (in the X direction) Figure 1 (in the X direction) consistent, such as Figures 9 to 11 As shown.

[0076] The second latch 33 has a latch 35 on one side corresponding to the connecting end, and the latch 35 communicates with the second slot 34. The size of the latch 35 is smaller than the radial cross-sectional size of the second slot 34. Preferably, the latch 35 is located in the thickness direction of the outer shell body 30. Figure 1 The length of the second slot 34 in the Z-direction is less than that in the thickness direction of the outer shell body 30. Figure 1 The length in the Z direction.

[0077] Figure 13 An exploded view showing the installation position of the electrical connector locking device, the electrical connector body 5, and the cable 6 provided in this embodiment of the application. Figure 13 As shown, a hook 51 is provided at one end of the electrical connector body 5. When the locking device is engaged with the electrical connector, the hook 51 of the electrical connector body 5 is inserted into the second slot 34 through the slot 35, and then engages with the end of the second ear 33 that has the slot 35. Preferably, the second slot 34 passes through the side of the second ear 33 corresponding to the locking end. When the locking device is engaged with the electrical connector, the two can be separated as needed through the opening on the side of the second ear 33 corresponding to the locking end, further enhancing the operability of the locking device.

[0078] In a further embodiment, a sealing ring 4 is also provided between the locking clip 2 and the wire protection shell 3, such as... Figure 1 or Figure 13 As shown. The third mating hole 32 has a flared opening at one end facing the cable end cap 1, that is, the third mating hole 32 has a flared opening at one end corresponding to the locking end. The sealing ring 4 is installed in the third mating hole 32, and the axial direction of the sealing ring 4 is ( Figure 1 (in the X direction) and the length direction of the protective casing 3 (in the X direction) Figure 1(in the X direction) aligned. By setting a sealing ring 4 between the locking clip 2 and the protective housing 3, the sealing performance of the locking device can be effectively guaranteed.

[0079] Figure 14 This is a schematic diagram showing the installation positions of the electrical connector locking device, the electrical connector body 5, and the cable 6 provided in this embodiment. The installation steps of the electrical connector locking device in this embodiment are as follows:

[0080] First, the cable end cap 1, locking clip 2, sealing ring 4, and cable outer shell 3 are sequentially fitted onto the cable 6. Then, the cable 6 is connected to the electrical connector body 5. Next, the cable outer shell 3 is snapped onto the electrical connector body 5. Then, the sealing ring 4 is moved into the enlarged hole of the third mating hole 32 of the cable outer shell 3. Finally, the locking clip 2 and cable end cap 1 are sequentially snapped onto the cable outer shell 3, thereby achieving rapid locking of the cable 6. Figure 14 As shown.

[0081] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0082] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0083] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly defined.

[0084] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0085] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0086] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A locking device for an electrical connector, characterized in that, For enabling quick locking of electrical connectors and cables, it includes: a coaxially mounted cable end cap, a locking clip, and a cable housing. The cable protection cap includes a cap shell with a receiving cavity and a limiting structure located in the receiving cavity. The cap shell has a wire-passing end and a locking end along its axial direction. The limiting structure is close to the wire-passing end. The limiting structure has a first buckle band at both ends of the cap shell in the length direction, and a first buckle structure is provided on the outward side of the first buckle band. The locking cable includes a main body located within the accommodating cavity and on the side of the limiting structure facing the engaging end. The locking cable has a second buckle band on the side facing the threading end. The second buckle band is located at both ends in the length direction of the locking cable, and a second buckle structure is provided on the outward side of the second buckle band. The cable protection shell is snapped onto the engaging end of the cable protection tail cover. The cable protection shell includes a shell body and a third buckle strap located on the side of the shell body facing the cable protection tail cover. The third buckle strap is located on one side of the shell body along its length, and the inward side of the third buckle strap is provided with a third buckle structure. The ends of the first buckle strap and the second buckle strap are corresponding to each other and are in the same plane, so that the first buckle structure on the first buckle strap and the second buckle structure on the second buckle strap are combined to form a spliced ​​buckle structure. The third buckle strap is engaged with the spliced ​​buckle structure, thereby realizing the quick locking of the cable.

2. The electrical connector locking device according to claim 1, characterized in that, The main body of the clip is also provided with a first clip ear corresponding to the position of the second buckle strap. The first clip ear is located on the outward side of the second buckle strap, and a first clip groove is formed between the first clip ear and the second buckle strap. The limiting structure forms a slot between the two ends of the tail cover shell in the length direction and the inner wall of the tail cover shell, respectively. The third buckle strap passes through the first clip groove and the slot in sequence and is engaged with the splicing buckle structure.

3. The electrical connector locking device according to claim 1, characterized in that, The first snap-fit ​​structure includes a plurality of spaced-apart limiting protrusions and / or limiting grooves; the second snap-fit ​​structure includes a plurality of spaced-apart limiting protrusions and / or limiting grooves; the third snap-fit ​​structure includes a plurality of spaced-apart limiting protrusions and / or limiting grooves.

4. The electrical connector locking device according to claim 1, characterized in that, The limiting structure has a first mating hole along its axial direction. The limiting structure has a notch at the connection between the tail cap outer shell and the inner wall of the tail cap outer shell in the thickness direction, and the notch communicates with the first mating hole. The inner wall of the tail cap outer shell has a beveled boss at the position corresponding to the notch. One end of the beveled boss extends to the wire threading end, and the thickness of the beveled boss facing the wire threading end is greater than the thickness of the beveled boss facing the locking end.

5. The electrical connector locking device according to claim 4, characterized in that, The inclined boss includes a first inclined boss and a second inclined boss in sequence along the width direction of the tail cap shell. The second inclined boss is close to the wire threading end, and the slope of the first inclined boss is greater than the slope of the second inclined boss.

6. The electrical connector locking device according to claim 4, characterized in that, The main body of the locking device has a second mating hole along its axial direction. The locking device has a claw on the side facing the threading end. The claws are located on both sides of the second mating hole in the width direction of the main body of the locking device. The claw has a protruding structure on the side facing the second mating hole. The side of the claw away from the second mating hole is designed with a slope. The thickness of the claw decreases from the end near the main body of the locking device to the side away from the main body of the locking device. The claw is used to insert into the notch when the locking device is installed in the receiving cavity.

7. The electrical connector locking device according to claim 4, characterized in that, The tail cap housing has a groove on the side near the engaging end for installing the locking clip, and the position of the groove corresponds to the position of the notch.

8. The electrical connector locking device according to claim 1, characterized in that, The outer shell body is also provided with second latches on both sides in the width direction, and the second latches have second slots for engaging with the electrical connector body.

9. The electrical connector locking device according to claim 1, characterized in that, The outer shell body has a third mating hole along its axial direction. A sealing ring is also provided between the locking clip and the wire protection shell. The third mating hole has an flared opening at one end facing the wire protection tail cover. The sealing ring is installed in the third mating hole, and the axial direction of the sealing ring is consistent with the length direction of the wire protection shell.

10. An electrical connector for quickly locking a cable to the connector body, characterized in that, The device includes an electrical connector locking device, which is the electrical connector locking device according to any one of claims 1-9. The electrical connector locking device includes a cable sheath, a locking clip, a sealing ring, and a cable sheath, which are coaxially arranged and sequentially sleeved on the cable. The cable is connected to the electrical connector body. The cable sheath is snapped onto the electrical connector body. The sealing ring is located in the enlarged hole of the third mating hole of the cable sheath. The locking clip and the cable sheath are snapped onto the cable sheath, thereby achieving rapid locking of the cable.

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