Electric connector

Abstract

The invention discloses an electric connector which comprises a plug shell and a matching shell, and a lock catch is further arranged on the plug shell. A locking piece is rotationally mounted on the plug shell, and one end, far away from the matching shell, of the locking piece is in sliding fit with the locking pin; after the plug shell is connected with the matching shell, the locking piece is rotated to enable a first protruding part on the locking piece to be connected with a first connecting part arranged at one end of the lock catch, so that one side of the locking piece is locked; the locking pin slides towards the interior of the locking piece, so that a second protruding part arranged on the locking pin is connected with a second connecting part arranged at the other end of the lock catch, and locking of the other side of the locking piece is completed; the equipment has a bidirectional locking capability, that is, the locking piece can be connected with the lock catch from the two sides of the lock catch at the same time to complete the bidirectional locking capability, so that the stability after the matching shell and the plug shell are connected can be ensured, and the phenomenon of loosening between the matching shell and the plug shell is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of connection equipment for electrical appliances, in particular to an electrical connector. Background Art

[0002] In a high-current and high-voltage connector, it is necessary to ensure a reliable connection between the mating shell and the plug shell; however, the mating shell and the plug shell in the prior art only have the ability of one-way locking, for example, in CN116093676A, after the operating unit and the mounting mechanism are closed, the operating unit is located on one side of the mounting mechanism, that is, after the operating unit and the mounting mechanism are connected, the locking action is completed between the facing surfaces of the operating unit and the mounting mechanism; although this method can also complete the locking action, the locking ability after locking needs to be improved.

[0003] At the same time, in the prior art with announcement number CN116093676A, after the operating unit and the mounting mechanism are closed, the operating unit is located on one side of the mounting mechanism. When the operating unit is opened, the operating unit is prone to over-rotation due to the lack of a limiting portion. Since the electrical connector has strict requirements on insulation performance and weight, the operating unit is basically made of insulating plastic material. Therefore, once the operating unit is over-rotated, it is very easy to twist it off, causing the electrical connector to lose its locking ability. Summary of the invention

[0004] The object of the present invention is to provide an electrical connector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrical connector, comprising a plug housing and a mating housing, wherein a lock catch is further provided on the plug housing; a locking piece is rotatably mounted on the plug housing, and an end of the locking piece away from the mating housing is slidably matched with a locking pin; when the plug housing is connected to the mating housing, the locking piece is rotated to connect a first protrusion provided on the locking piece with a first connecting piece provided at one end of the lock catch, so as to complete the locking of one side of the locking piece; the locking pin is used to slide into the locking piece, so as to connect a second protrusion provided on the locking pin with a second connecting piece provided at the other end of the lock catch, so as to complete the locking of the other side of the locking piece; the locking piece is also provided with a locking pin for guiding the locking pin to slide into the locking piece ... A sliding groove for the locking pin to slide, and limit blocks are provided on both sides of the locking pin, and the limit blocks slide in the limit grooves provided on the locking piece; limit columns are provided on both sides of the lock buckle, and the locking pin is guided to be smoothly connected with the lock buckle through the limit columns; the locking piece is provided with a convex point, and the plug shell is also provided with a groove that matches the convex point, and the convex point and the groove make a sound when they contact; the locking piece is also provided with an elastic plate, and the convex point is arranged on the elastic plate; avoidance grooves are provided on the facing surfaces of the locking piece, and the plug shell is also provided with a first convex block, and the inner bottom surface of the avoidance groove conflicts with the first convex block to prevent the rotation of the locking piece; a second convex block is also provided on the inner bottom surface of the avoidance groove.

[0006] As a preferred technical solution of the present invention: an installation cavity is provided on the plug housing, and a sealing member is provided in the installation cavity, and a pressure cover is provided to connect with the installation cavity to compact the sealing member in the installation cavity; an extension portion is also provided on the sealing member, and a clearance area for avoiding the extension portion is also provided on the side of the pressure cover; a connecting pin is also provided on the inner wall surface of the installation cavity, and the connecting pin is adaptively connected to a connecting port provided on the pressure cover.

[0007] As a preferred technical solution of the present invention: a hook is also provided in the middle of the pressure cover, and the hook is adaptively connected to the hook groove provided in the installation cavity; a plug hole is also provided in the installation cavity, and the pressure cover is adaptively connected to the plug hole through a plug pin provided.

[0008] As a preferred technical solution of the present invention: an installation cavity is provided on the plug housing, and a sealing member is provided in the installation cavity, and a pressure cover is provided to be connected with the installation cavity to compact the sealing member in the installation cavity; an extension portion is also provided on the sealing member, and a side surface of the pressure cover is also provided with an escape area for evading the extension portion; the plug housing comprises an outer ring and an inner ring, wherein the installation cavity is arranged in the inner ring, and the upper end surface of the outer ring is higher than the upper end surface of the inner ring.

[0009] As a preferred technical solution of the present invention: the cross-section of the seal is rectangular, and the extension portion is arranged on the four inner sides of the seal; a connecting pin is also provided on the inner wall surface of the installation cavity, and the connecting pin is adaptively connected to the connecting port provided on the pressure cover.

[0010] As a preferred technical solution of the present invention: a hook is also provided in the middle of the pressure cover, and the hook is adaptively connected to the hook groove provided in the installation cavity; a plug hole is also provided in the installation cavity, and the pressure cover is adaptively connected to the plug hole through a plug pin provided.

[0011] As a preferred technical solution of the present invention: it includes a wiring terminal connected to the plug housing and the plug housing, and the wiring terminal includes a connecting terminal and a conductive terminal; the conductive terminal includes an upper shell and a lower shell, and a conductive plate is provided between the upper shell and the lower shell, and a locking plate is provided on the lower shell; one end of the locking plate is in contact with the lower shell, and the other end of the locking plate is in contact with the conductive plate to fix the conductive plate in the conductive terminal; the locking plate includes a first braking part and a second braking part; the first braking part is in contact with a first stopping groove provided in the lower shell, and the second braking part is in contact with a second stopping groove provided on the conductive plate.

[0012] As a preferred technical solution of the present invention: fixing grooves for fixing the locking plate are provided on the facing surfaces of the lower shell and the upper shell; a buckle plate is also provided on the upper shell, and the buckle plate is adaptively connected to the third stop groove provided on the locking plate; a sliding groove is also provided on the side of the lower shell, and the locking plate is guided to slide toward the interior of the lower shell on both sides of the locking plate through the sliding groove.

[0013] As a preferred technical solution of the present invention: an isolation piece is also provided on the lower shell; a first inclined surface is provided in the middle of the isolation piece, and second inclined surfaces are provided on both sides of the first inclined surface; the lower shell is adaptively connected with a snap pin provided on the upper shell through a buckled portion; the lower shell is combined with the upper shell and inserted into a shielding cover; the first inclined surface is higher than the second inclined surface.

[0014] As a preferred technical solution of the present invention: a shielding cover is provided on the outside of the conductive terminal, and an electrical contact point is also provided on the outer wall surface of the shielding cover; an outer cover body is also provided on the connecting terminal, and after the outer cover body is sleeved on the outside of the shielding cover, the electrical contact point conflicts with the inner wall surface of the outer cover body; an upper shell and a lower shell for clamping the conductive plate are also provided inside the shielding cover, and a countersunk buckle is also provided on the shielding cover, and the countersunk buckle is used to connect the upper shell and the lower shell to fix the combined upper shell and the lower shell in the shielding cover; the electrical contact points are distributed on the four outer wall surfaces of the shielding cover, and each outer wall surface has two of the electrical contact points; a card plate that is tilted outward is also provided on the shielding cover; a pressing sheet is also provided on the shielding cover; an isolation plate is also provided on the side of the shielding cover away from the connecting terminal.

[0015] By adopting the above technical scheme, the beneficial effects of the present invention are: 1. The device has the ability of two-way locking, that is, the locking piece can be connected to the lock buckle from both sides of the lock buckle at the same time to complete the two-way locking ability, thereby ensuring the stability of the mating shell and the plug shell after connection, and effectively solving the problem of looseness between the mating shell and the plug shell.

[0016] 2. Use the sound made by the convex point and the groove at the moment of contact to remind the user that the locking piece is in a fully open state, so as to avoid the over-rotation of the locking piece; at the same time, when the convex point contacts the groove, the resistance to the rotation of the locking piece is increased, thereby reducing the problem of continued rotation of the locking piece due to misoperation. In summary, the device can use the sound made by the convex point and the groove to remind the user that the locking piece is in a fully open state, so as to avoid the over-rotation phenomenon; secondly, use the convex point and the groove to increase the resistance to the rotation of the locking piece, so as to avoid the over-rotation phenomenon of the locking piece. Based on this, the locking piece is prevented from over-rotating through sound prompts and mechanical structures, so as to reduce the problem of damage to the locking piece caused by excessive rotation of the locking piece by the user, thereby ensuring the service life of the locking piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0018] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0019] Figure 3 for Figure 1 A partial enlarged schematic diagram of point D in the middle;

[0020] Figure 4 It is an exploded schematic diagram of the main structure of the present invention;

[0021] Figure 5It is a cross-sectional schematic diagram of the main structure of the present invention;

[0022] Figure 6 for Figure 5 A partial enlarged schematic diagram of point C in the middle;

[0023] Figure 7 It is a schematic diagram of the exploded structure of the plug housing of the present invention;

[0024] Figure 8 for Figure 7 A local enlarged schematic diagram of the H in the middle;

[0025] Fig. 9 It is a schematic diagram of the main structure of the sealing element of the present invention;

[0026] Fig.10 It is a schematic diagram of the main structure of the gland of the present invention;

[0027] Fig.11 It is a schematic diagram of the internal structure of the plug housing of the present invention;

[0028] Fig.12 for Fig.11 A partial enlarged schematic diagram of point F in the middle;

[0029] Fig.13 It is a schematic diagram of the exploded structure of the locking member of the present invention;

[0030] Fig.14 for Fig.13 A partial enlarged schematic diagram of point B in the middle;

[0031] Fig.15 It is a structural schematic diagram of the other side of the locking member of the present invention;

[0032] Fig.16 for Fig.15 A partial enlarged schematic diagram of point E in the middle;

[0033] Fig.17 is a schematic structural diagram of a housing portion of a plug housing;

[0034] Fig.18 It is a schematic diagram of the exploded structure of the wiring terminal of the present invention;

[0035] Fig.19 It is a cross-sectional schematic diagram of the upper shell and the lower shell after being assembled according to the present invention;

[0036] Fig. 20 for Fig.19 A partial enlarged schematic diagram of the G in the middle;

[0037] Fig.21 It is a schematic diagram of the structure of one side of the lower shell;

[0038] Fig. 22is a schematic diagram of the structure of the other side of the lower shell;

[0039] Fig.23 It is a schematic diagram of the internal structure of the upper shell of the present invention;

[0040] Fig.24 It is a schematic diagram of the main structure of the conductive plate of the present invention;

[0041] Fig.25 An exploded view of the upper shell, the lower shell and the shielding cover after being combined in the present invention;

[0042] Fig.26 It is a schematic diagram of the structure of one side of the shielding cover;

[0043] Fig. 27 It is a schematic diagram of the structure of the other side of the shielding cover;

[0044] Fig.28 for Fig. 27 A local enlarged schematic diagram of point I in the middle.

[0045] In the figure: 1. plug housing; 10. lock; 11. first connecting part; 12. second connecting part; 13. limiting column; 14. anti-slip pattern; 15. third inclined surface; 16. first convex block; 17. groove; 18. gland; 19. sealing member; 110. connecting pin; 111. mounting cavity; 112. avoidance area; 113. connecting port; 114. hook; 115. hook groove; 116. extension part; 117. plug hole; 118. plug pin; 119. outer ring; 120. inner ring; 2. matching housing; 20. locking pin; 21. locking member; 22. first protruding part; 23. slide groove; 24. limiting block; 25. second protruding part; 26. limiting groove; 28. convex point; 29. Elastic plate; 210, second protrusion; 211, avoidance groove; 3, wiring terminal; 30, conductive terminal; 31, connecting terminal; 32, upper shell; 33, lower shell; 34, conductive plate; 35, locking piece; 36, buckle plate; 37, sliding groove; 38, first retaining groove; 39, first braking part; 310, second braking part; 311, third retaining groove; 312, second retaining groove; 313, fixing groove; 314, isolating member; 315, first inclined surface; 316, second inclined surface; 317, buckling part; 318, buckle pin; 319, shielding cover; 320, electrical contact point; 321, pressing piece; 322, undercut; 323, clamping plate; 324, isolating plate; 325, outer cover. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0047] See also Figure 1-28 , an embodiment of the present invention provides: a locking mechanism of an electrical connector, comprising a plug housing 1 and a mating housing 2, and a lock buckle 10 is further provided on the plug housing 1; a locking member 21 is rotatably mounted on the plug housing 1, and the end of the locking member 21 away from the mating housing 2 is slidably matched with a locking pin 20 provided; when the plug housing 1 is connected to the mating housing 2, the locking member 21 is rotated to connect the first protrusion 22 provided on the locking member 21 with the first connecting portion 11 provided at one end of the lock buckle 10, so as to complete the locking of one side of the locking member 21; the locking pin 20 is used to slide into the locking member 21, so that the second protrusion 25 provided on the locking pin 20 is connected with the second connecting portion 12 provided at the other end of the lock buckle 10, so as to complete the locking of the other side of the locking member 21.

[0048] To sum up, after the locking member 21 and the lock buckle 10 are in contact, the first protrusion 22 is connected to the first connecting portion 11, and the locking action can be completed on one side of the locking member 21; then the locking pin 20 is pushed until the second protrusion 25 is connected to the second connecting portion 12, and the locking action can be completed on the other side of the locking member 21.

[0049] Based on this, when the locking member 21 is in the locked state, both sides of the locking member 21 have locking capabilities, so that the locking state of the device is maintained durably and reliably, thereby effectively solving the problem of looseness between the mating housing 2 and the plug housing 1.

[0050] Furthermore, since the locking member 21 is also provided with a slide groove 23 for guiding the locking pin 20 to slide, the sliding direction of the locking pin 20 can be limited, thereby allowing the locking pin 20 to smoothly and reliably contact or separate from the lock buckle 10.

[0051] Furthermore, since limit blocks 24 are provided on both sides of the locking pin 20, and the limit blocks 24 slide in the limit grooves 26 provided on the locking member 21, it is possible to prevent the locking pin 20 from falling off the locking member 21. In particular, when the limit blocks 24 slide in the limit grooves 26, the stable and directional sliding of the locking pin 20 can be further ensured.

[0052] On the basis of the above scheme, both sides of the lock buckle 10 are provided with limiting columns 13, and the locking pin 20 is guided by the limiting columns 13 to smoothly connect with the lock buckle 10. Therefore, the gap between the limiting columns 13 can be used to guide the locking pin 20 to slide into the slide groove 23, and when the locking pin 20 is inserted into the slide groove 23, the limiting columns 13 can prevent the locking member 21 from swinging, thereby ensuring that the locking state of the device can be stably and permanently maintained, and even if the two sides of the locking member 21 are collided by external force, the locking member will not swing along the left and right sides of the lock buckle 10.

[0053] Furthermore, since the lock buckle 10 is an elastic buckle, that is, when pressed downward, the first connection portion 11 of the lock buckle 10 can be separated from the first protruding portion 22, and the lock buckle 10 can automatically reset after the external force disappears. Therefore, the first connection portion 11 and the second protruding portion 25 can be separated by pressing the lock buckle 10, thereby facilitating the locking member 21 to complete the unlocking action.

[0054] Furthermore, since the upper wall surface of the lock buckle 10 is provided with an anti-slip groove 14, slipping can be avoided when pressing, and a third inclined surface 15 is provided on the left side of the anti-slip groove 14, so that the first protrusion 22 can move smoothly to the bottom of the first connecting portion 11 during the locking process of the locking member 21.

[0055] A locking member 21 is rotatably mounted on the plug housing 1; a convex point 28 is provided on the locking member 21, and a groove 17 matching the convex point 28 is also provided on the plug housing 1, and the convex point 28 makes a sound when in contact with the groove 17.

[0056] In summary, the sound emitted by the convex point 28 and the groove 17 at the moment of contact is used to remind the user that the locking member 21 is in a fully open state, thereby preventing the locking member 21 from over-rotating; at the same time, when the convex point 28 contacts the groove 17, the resistance of the locking member 21 during rotation is increased, thereby reducing the problem of the locking member 21 continuing to rotate due to misoperation. Based on this, the locking member 21 is prevented from over-rotating through sound prompts and mechanical structures, thereby reducing the problem of the locking member 21 being damaged due to excessive rotation by the user, thereby ensuring the service life of the locking member 21.

[0057] Furthermore, since the locking member 21 is also provided with an elastic plate 29 and the protrusion 28 is arranged on the elastic plate 29, when the protrusion 28 is separated from the groove 17, the elastic plate 29 can extend to the outside of the locking member 21, thereby facilitating the separation of the protrusion 28 from the groove 17.

[0058] Furthermore, since the facing surfaces of the locking member 21 are provided with an avoidance groove 211, and the plug housing 1 is also provided with a first protrusion 16, and the inner bottom surface of the avoidance groove 211 contacts the first protrusion 16 to prevent the locking member 21 from rotating. Therefore, the first protrusion 16 is in contact with the bottom surface of the avoidance groove 211 to further increase the resistance to continued rotation of the locking member 21 after it is fully opened, thereby cooperating with the protrusion 28 and the groove 17 to reliably prevent the locking member 21 from continuing to rotate.

[0059] At the same time, since a second protrusion 210 is further provided on the inner bottom surface of the avoidance groove 211, the contact area is enlarged to increase the resistance to excessive rotation, thereby effectively solving the problem of the locking member 21 being twisted off due to excessive rotation.

[0060] On the basis of the above solution, since the protrusion 28 is hemispherical and the groove 17 is a hemispherical groove, the separation of the protrusion 28 and the groove 17 is smoother and smoother.

[0061] The plug housing 1 is provided with an installation cavity 111, and a seal 19 is provided in the installation cavity 111, and a pressure cover 18 is provided to connect with the installation cavity 111 so as to compact the seal 19 in the installation cavity 111; an extension portion 116 is also provided on the seal 19, and a side of the pressure cover 18 is also provided with an avoidance area 112 for avoiding the extension portion 116; the plug housing 1 includes an outer ring 119 and an inner ring 120, wherein the installation cavity 111 is arranged in the inner ring 120, and the upper end surface of the outer ring 119 is higher than the upper end surface of the inner ring 120.

[0062] When the pressure cover 18 and the installation cavity 111 are in the process of being connected, the extension portion 116 moves along the avoidance area 112, which not only enables the pressure cover 18 to be smoothly connected to the installation cavity 111; secondly, it can not only avoid the phenomenon of "flanging" of the sealing member 19 during the downward movement of the pressure cover 18, but also further facilitate the smooth insertion of the pressure cover 18 into the installation cavity 111.

[0063] In particular, since the distances between the two end faces of the inner ring 120 and the outer ring 119 are different, the opening area of ​​the connection can be expanded to facilitate smooth insertion of the plug housing 1 and the mating housing 2, thereby making the plugging process of the plug housing 1 and the mating housing 2 smooth and easy.

[0064] Based on this, the present invention optimizes the structure of the seal 19 and the pressure cover 18 to avoid the seal 19 following the movement of the pressure cover 18 and the installation cavity 111 being loosely sealed due to the "flanging" phenomenon, and can also improve the smooth insertion of the plug housing 1 and the mating housing 2.

[0065] Specifically, the distance between the upper end surface of the inner ring 120 and the upper end surface of the outer ring 119 is 2 mm. Therefore, within this size range, the plug housing and the mating housing can be smoothly connected while improving the waterproof performance of the device.

[0066] Furthermore, since the cross-section of the seal 19 is rectangular and the extension portion 116 is arranged on the four inner sides of the seal 19, the extension portion 116 can contact the pressure cover 18 from four sides, so that the seal 19 will not have "flanging" on any side during the tightening process, thereby effectively solving the problem of loose sealing of the equipment due to the "flanging" phenomenon during the tightening of the seal 19.

[0067] In order to ensure that the gland 18 and the installation cavity 111 can be reliably fixed after being connected, a connecting pin 110 is further provided on the inner wall surface of the installation cavity 111, and the connecting pin 110 is adapted to be connected with the connecting port 113 provided on the gland 18. Therefore, when the connecting port 113 is connected with the connecting pin 110, the edge of the gland 18 can be fixed.

[0068] On the basis of the above solution, since a hook 114 is further provided in the middle of the gland 18, and the hook 114 is adapted to be connected with the hook groove 115 provided in the installation cavity 111, the gland 18 can be fixed in the middle of the gland 18.

[0069] Based on this, the edge of the gland 18 can be reliably fixed while the middle thereof can also be fixed, so that after the gland 18 is connected to the plug housing 1, the seal 19 can be stably and reliably pressed into the installation cavity 111 to ensure the sealing performance of the equipment.

[0070] In addition, in order to further improve the smoothness of the connection between the gland 18 and the plug housing 1, a plug hole 117 is further provided in the installation cavity 111, and the gland 18 is adapted to be connected with the plug hole 117 through a plug pin 118. Therefore, when the plug pin 118 is connected with the plug hole 117, the plug pin 118 moves along the plug hole 117, which can guide the gland 18 to move downward; and can limit the change in the position of the gland 18 when it moves downward, thereby ensuring that the gland 18 can be smoothly and reliably connected with the plug housing 1.

[0071] In summary, the device optimizes the structure of the gland 18 and the seal 19. Although the structure is simple, due to the simple structural optimization, firstly, there is no need to change the shape of the electrical connector; secondly, it is easy to produce and process; thirdly, it reduces the difficulty and cost of producing the equipment.

[0072] The wiring terminal 3 includes a connecting terminal 31 and a conductive terminal 30; the conductive terminal 30 includes an upper shell 32 and a lower shell 33, and a conductive plate 34 is provided between the upper shell 32 and the lower shell 33, and a locking piece 35 is provided on the lower shell 33; one end of the locking piece 35 is in conflict with the lower shell 33, and the other end of the locking piece 35 is in conflict with the conductive plate 34, so as to fix the conductive plate 34 in the conductive terminal 30.

[0073] In summary, the locking piece 35 is installed in the lower housing 33, and one end of the locking piece 35 is used to press the conductive plate 34 tightly against the upper housing 32 and the lower housing 33, so as to ensure that the conductive plate 34 does not shake during the plugging process, so as to avoid the conductive plate 34 from being burned due to poor contact, thereby affecting the service life of the device. Based on this, the device limits the position of the conductive plate 34 through the locking piece 35, which can ensure the smooth docking and separation of the electrical connector and avoid the burning phenomenon caused by the shaking of the conductive plate 34.

[0074] Specifically, the locking piece 35 includes a first braking portion 39 and a second braking portion 310; the first braking portion 39 abuts against a first retaining groove 38 provided in the lower housing 33, and the second braking portion 310 abuts against a second retaining groove 312 provided on the conductive plate 34. In the above manner, the conductive plate 34 can be reliably positioned by utilizing the structure of the locking piece 35 itself, effectively preventing the conductive plate 34 from swinging back and forth inside the conductive terminal 30, that is, sliding in the length direction of the conductive terminal 30.

[0075] On the basis of the above scheme, the facing surfaces of the lower shell 33 and the upper shell 32 are provided with a fixing groove 313 for fixing the locking plate 35. Therefore, when the upper shell 32 and the lower shell 33 are closed, the fixing groove 313 is stuck on the upper and lower sides of the conductive plate 34, thereby preventing the conductive plate 34 from shaking up and down, that is, shaking upward or downward in the height direction of the conductive terminal 30.

[0076] Furthermore, since a buckle plate 36 is also provided on the upper shell body 32, and the buckle plate 36 is adapted to be connected with the third stop groove 311 provided on the locking plate 35, when the buckle plate 36 is connected with the third stop groove 311, the conductive plate 34 can be limited from its upper end, and at the same time, the first braking portion 39 and the first stop groove 38 can limit the conductive plate 34 at its lower end, thereby further preventing the conductive plate 34 from swinging back and forth.

[0077] In addition, since a sliding groove 37 is provided on the side of the lower shell 33, and the locking plate 35 is guided to slide toward the interior of the lower shell 33 on both sides of the locking plate 35 through the sliding groove 37, the sliding groove 37 can be used to guide the locking plate 35 to slide toward the interior of the lower shell 33. At the same time, when the first braking portion 39 is connected to the first stop groove 38, and both sides of the locking plate 35 are located in the sliding groove 37, it can be ensured that the locking plate 35 itself is stably and reliably positioned in the lower shell 33.

[0078] The connection terminal 3 comprises an upper shell 32 and a lower shell 33 , and an isolating member 314 is provided on the lower shell 33 ; a first inclined surface 315 is provided in the middle of the isolating member 314 , and second inclined surfaces 316 are provided on both sides of the first inclined surface 315 .

[0079] In summary, since the isolating member 314 is horizontally placed in the opening of the lower housing 33, the isolating member 314 can be used to prevent fingers from contacting the conductive plates inside the upper housing 32 and the lower housing 33 through the opening of the lower housing 33, thereby preventing impurities from being contaminated on the conductive plates and causing sparks to appear during the connection process of the device.

[0080] In particular, since the first bevel 315 and the second bevel 316 are provided on the isolation member 314, the two bevels are used to guide the connection between the plug housing 1 and the mating housing 2 twice, which can reduce the resistance during the connection process to make the connection between the two smoother, and make the plug housing 1 and the mating housing easier and more convenient during the plugging and unplugging process.

[0081] Furthermore, since the lower shell 33 is adaptively connected to the buckle pin 318 provided on the upper shell 32 through the buckle portion 317 provided, the connection between the lower shell 33 and the upper shell 32 is simple and convenient.

[0082] On the basis of the above solution, since the lower shell 33 is combined with the upper shell 32 and then inserted into the shielding cover 319, the shielding cover 319 can be used to further fix and protect the combined upper shell 32 and lower shell 33.

[0083] Furthermore, since the first inclined surface 315 is higher than the second inclined surface 316 , the mating housing 2 and the plug housing 1 are mated with each other in a progressive manner, so as to improve the smoothness of the connection between the plug housing 1 and the mating housing 2 .

[0084] A shielding cover 319 is provided on the outside of the conductive terminal 30, and an electrical contact point 320 is also provided on the outer wall surface of the shielding cover 319; an outer cover body 325 is also provided on the connecting terminal 31, and after the outer cover body 325 is sleeved on the outside of the shielding cover 319, the electrical contact point 320 conflicts with the inner wall surface of the outer cover body 325; an upper shell 32 and a lower shell 33 for clamping the conductive plate are also provided inside the shielding cover 319, and a buckle 322 is also provided on the shielding cover 319, and the buckle 322 is used to connect with the upper shell 32 and the lower shell 33 to fix the combined upper shell 32 and the lower shell 33 in the shielding cover 319. In summary, by optimizing the structure of the shielding cover 319, that is, setting a buckle 322 on the outside of the shielding cover 319, the combined upper shell 32 and the lower shell 33 can be reliably located in the shielding cover 319, and then the electrical contact point 320 is used to contact the inner wall surface of the outer cover body 325 to increase the flow area between the conductive terminal 30 and the connecting terminal 31, thereby reducing the heat generation when the equipment is in use.

[0085] Specifically, since the electrical contact points 320 are distributed on the four outer wall surfaces of the shielding cover 319, and each outer wall surface has two electrical contact points 320, the flow area can be further increased to reduce the heating phenomenon when the equipment is in use; wherein, the electrical contact points 320 are processed on the shielding cover 319 through a stamping process, and at the same time, the electrical contact points 320 are arched and protrude from the outer wall of the shielding cover 319, so when they come into contact with the outer cover body 325, they are also elastic to ensure the tightness of the two after the connection.

[0086] Furthermore, since the shielding cover 319 is also provided with an outward-tilted card plate 323, the outward-tilted card plate 323 can be used to clamp into the plug housing 1 to ensure that the conductive terminal 30 can be reliably fixed in the plug housing 1, thereby ensuring that the conductive terminal 30 is stably and reliably connected to the plug housing 1. The combined upper housing 32 and lower housing 33 can be reliably connected to the shielding cover 319, thereby ensuring that the terminal block will not slip during the insertion and removal process.

[0087] On the basis of the above scheme, since a pressing sheet 321 is also provided on the shielding cover 319, during the insertion process of the plug housing 1 and the mating housing 2, the pressing sheet 321 can be used to guide the two to dock smoothly. After the docking is completed, the pressing sheet 321 can be used to squeeze the mating housing 2 to further improve the stability of the two after connection.

[0088] Furthermore, a separation plate 324 is provided on one side of the shielding cover 319 away from the connection terminal 31. Therefore, the pressing sheet 321 can be used to strengthen the structural strength of the end face of the shielding cover 319, and the pressing sheet 321 can also be used to create a certain gap between the shielding cover 319 and the plug housing 1, thereby facilitating timely removal of heat.

[0089] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An electrical connector, characterized in that: The invention comprises a plug housing (1) and a mating housing (2), and a lock buckle (10) is further provided on the plug housing (1); a locking member (21) is rotatably mounted on the plug housing (1), and one end of the locking member (21) away from the mating housing (2) is slidably matched with a locking pin (20); when the plug housing (1) is connected with the mating housing (2), the locking member (21) is rotated to connect a first protruding portion (22) provided on the locking member (21) with a first connecting portion (11) provided at one end of the lock buckle (10), so as to complete the locking of one side of the locking member (21); the locking pin (20) is slid into the locking member (21), so as to connect a second protruding portion (25) provided on the locking pin (20) with a second connecting portion (12) provided at the other end of the lock buckle (10), so as to complete the locking of the other side of the locking member (21); The locking member (21) is also provided with a slide groove (23) for guiding the locking pin (20) to slide, and both sides of the locking pin (20) are provided with limit blocks (24), and the limit blocks (24) slide in the limit grooves (26) provided on the locking member (21); both sides of the lock buckle (10) are provided with limit columns (13), and the locking pin (20) is guided to be smoothly connected with the lock buckle (10) through the limit columns (13); The locking member (21) is provided with a protrusion (28), and the plug housing (1) is also provided with a groove (17) adapted to the protrusion (28), and the protrusion (28) and the groove (17) make a sound when they come into contact; The locking member (21) is also provided with an elastic plate (29), and the protrusion (28) is arranged on the elastic plate (29); the facing surfaces of the locking member (21) are provided with avoidance grooves (211), and the plug housing (1) is also provided with a first protrusion (16), and the inner bottom surface of the avoidance groove (211) contacts the first protrusion (16) to prevent the locking member (21) from rotating; and a second protrusion (210) is also provided on the inner bottom surface of the avoidance groove (211).

2. An electrical connector according to claim 1, characterized in that: The plug housing (1) is provided with an installation cavity (111), and a sealing member (19) is provided in the installation cavity (111). A pressure cover (18) is provided to connect the installation cavity (111) so as to press the sealing member (19) into the installation cavity (111); an extension portion (116) is also provided on the sealing member (19), and a side of the pressure cover (18) is also provided with an avoidance area (112) for avoiding the extension portion (116); a connecting pin (110) is also provided on the inner wall surface of the installation cavity (111), and the connecting pin (110) is adaptively connected to a connecting port (113) provided on the pressure cover (18).

3. An electrical connector according to claim 2, characterized in that: A hook (114) is also provided in the middle of the pressure cover (18), and the hook (114) is adaptively connected to a hook groove (115) provided in the installation cavity (111); a plug hole (117) is also provided in the installation cavity (111), and the pressure cover (18) is adaptively connected to the plug hole (117) via a plug pin (118).

4. An electrical connector according to claim 3, characterized in that: The plug housing (1) is provided with an installation cavity (111), and a sealing member (19) is provided in the installation cavity (111). A pressure cover (18) is provided to connect the installation cavity (111) so as to press the sealing member (19) into the installation cavity (111); an extension portion (116) is also provided on the sealing member (19), and a side surface of the pressure cover (18) is also provided with an escape area (112) for evading the extension portion (116); the plug housing (1) comprises an outer ring (119) and an inner ring (210), wherein the installation cavity (111) is provided in the inner ring (120), and an upper end surface of the outer ring (119) is higher than an upper end surface of the inner ring (120).

5. An electrical connector according to claim 4, characterized in that: The cross section of the sealing member (19) is rectangular, and the extension portion (116) is arranged on the four inner sides of the sealing member (19); a connecting pin (110) is also provided on the inner wall surface of the installation cavity (111), and the connecting pin (110) is adaptively connected to a connecting port (113) provided on the pressure cover (18).

6. An electrical connector according to claim 5, characterized in that: A hook (114) is also provided in the middle of the pressure cover (18), and the hook (114) is adaptively connected to a hook groove (115) provided in the installation cavity (111); a plug hole (117) is also provided in the installation cavity (111), and the pressure cover (18) is adaptively connected to the plug hole (117) via a plug pin (118).

7. An electrical connector according to any one of claims 1 to 6, characterized in that: The invention comprises a connection terminal (3) connected to the plug housing (1) and the plug housing (1), and the connection terminal (3) comprises a connection terminal (31) and a conductive terminal (30); the conductive terminal (30) comprises an upper housing (32) and a lower housing (33), a conductive plate (34) is provided between the upper housing (32) and the lower housing (33), and a locking piece (35) is provided on the lower housing (33); one end of the locking piece (35) is connected to the lower housing (33) The locking piece (35) is in conflict with the conductive plate (34), and the other end of the locking piece (35) is in conflict with the conductive plate (34) to fix the conductive plate (34) in the conductive terminal (30); the locking piece (35) includes a first braking portion (39) and a second braking portion (310); the first braking portion (39) is in conflict with a first retaining groove (38) provided in the lower shell (33), and the second braking portion (310) is in conflict with a second retaining groove (312) provided on the conductive plate (34).

8. An electrical connector according to claim 7, characterized in that: The lower shell (33) and the upper shell (32) are provided with fixing grooves (313) for fixing the locking plate (35) on the facing surfaces thereof; the upper shell (32) is also provided with a buckle plate (36), and the buckle plate (36) is adaptively connected with a third stop groove (311) provided on the locking plate (35); the side surface of the lower shell (33) is also provided with a sliding groove (37), and the locking plate (35) is guided to slide toward the inside of the lower shell (33) on both sides of the locking plate (35) through the sliding groove (37).

9. An electrical connector according to claim 8, characterized in that: The lower shell (33) is also provided with an isolating member (314); a first inclined surface (315) is provided in the middle of the isolating member (314), and second inclined surfaces (316) are provided on both sides of the first inclined surface (315); the lower shell (33) is adaptively connected with a snap-on pin (318) provided on the upper shell (32) through a buckle connection portion (317); the lower shell (33) is combined with the upper shell (32) and inserted into a shielding cover (319); the first inclined surface (315) is higher than the second inclined surface (316).

10. An electrical connector according to claim 9, characterized in that: The conductive terminal (30) is provided with a shielding cover (319) on the outside, and an electrical contact point (320) is provided on the outer wall surface of the shielding cover (319); the connecting terminal (31) is also provided with an outer cover body (325), and after the outer cover body (325) is sleeved on the outside of the shielding cover (319), the electrical contact point (320) is in conflict with the inner wall surface of the outer cover body (325); the shielding cover (319) is also provided with an upper shell (32) and a lower shell (33) for clamping the conductive plate, and the shielding cover (319) is also provided with an undercut (322), and the undercut (325) is used to clamp the conductive plate. 322) is connected with the upper shell (32) and the lower shell (33) to fix the combined upper shell (32) and the lower shell (33) in the shielding cover (319); the electrical contact points (320) are distributed on the four outer wall surfaces of the shielding cover (319), and each outer wall surface has two electrical contact points (320); the shielding cover (319) is also provided with a card plate (323) that is tilted outward; the shielding cover (319) is also provided with a pressing sheet (321); the shielding cover (319) is also provided with an isolation plate (324) on one side away from the connecting terminal (31).

Images