Cable connector with secondary lock structure

Abstract

The invention belongs to the technical field of electronic devices, and particularly relates to a cable connector with a secondary lock structure, and the cable connector comprises a plug which comprises a first housing and a plurality of first terminals disposed in the first housing; the socket is matched with the plug and comprises a second shell and a plurality of second terminals arranged in the second shell; the connecting lock mechanism comprises a connecting assembly and an unlocking piece, the connecting assembly can be connected with the first shell and the second shell when the plug is matched with the socket, and the unlocking piece is connected with the connecting assembly and can move along an unlocking track to enable the connecting assembly to be disengaged from the first shell and the second shell; wherein the unlocking track comprises at least two sections of moving tracks in different moving directions. According to the cable connector, unlocking of the plug and the socket can be completed only by moving the unlocking piece in at least two different directions, the phenomenon of abnormal separation of the plug and the socket is avoided to a great extent, and in addition, the cable connector is good in sealing performance, small in size and high in overcurrent capacity.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic devices, and in particular relates to a cable connector with a secondary lock structure. Background Art

[0002] Cable connectors are a common type of electronic device, commonly used for connecting electrical signals, and are widely used in various fields. Cable connectors are usually composed of a plug and a socket, which form an electrical signal connection after the plug and socket are plugged in.

[0003] After the plug and socket are connected, they are prone to abnormal separation due to factors such as line pulling or long-term plug-in and plug-out wear, resulting in abnormal interruption of electrical signals. In order to avoid such abnormal separation of the plug and socket, an additional connection structure, such as a buckle, is generally provided between the plug and socket to enhance the connection reliability of the plug and socket.

[0004] However, in the prior art, the connection reliability of such connection structures currently used is still insufficient, and abnormal separation is still prone to occur due to reasons such as accidental touch, line pulling, long-term plug-in wear, etc. In addition, the sealing performance of the cable connector currently used is relatively poor. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a cable connector with a secondary lock structure, aiming to solve at least one technical problem in the background technology.

[0006] In order to solve the above technical problems, the present invention is implemented as follows: a cable connector with a secondary lock structure, the cable connector comprising:

[0007] A plug, comprising a first housing and a plurality of first terminals arranged in the first housing;

[0008] A socket, mating with the plug, comprising a second housing and a plurality of second terminals arranged in the second housing, wherein the plurality of second terminals are arranged corresponding to the plurality of first terminals, so that when the plug is mated with the socket, the plurality of first terminals and the plurality of second terminals are connected one by one;

[0009] A connection lock mechanism, comprising a connection assembly and an unlocking member, wherein the connection assembly can connect the first shell and the second shell when the plug is matched with the socket, and the unlocking member is connected to the connection assembly and can move along an unlocking track to make the connection assembly fall off and connect the first shell and the second shell;

[0010] The unlocking trajectory includes at least two moving trajectories with different moving directions.

[0011] Further, the connection assembly includes a pressure latch and a lock catch, one of the pressure latch and the lock catch is arranged on the first shell, and the other is arranged on the second shell;

[0012] A locking hole is provided at one end of the compression latch close to the locking buckle. When the plug is matched with the socket, the locking buckle is inserted into the locking hole to connect the first shell and the second shell.

[0013] Furthermore, a rotating shaft is connected to the middle of the pressure latch, and an elastic element is connected to one end of the pressure latch away from the lock buckle;

[0014] The pressure latch can rotate freely around the rotating shaft, and the elastic element is used to apply a thrust to the pressure latch to make the pressure latch tilt toward the lock buckle.

[0015] Further, the unlocking member is connected to an end of the pressure latch away from the lock buckle, and the unlocking track includes a first moving track moving along the pressure latch and a second moving track moving along the pressing direction;

[0016] When the unlocking member moves along the pressing direction, it drives the end of the pressing latch away from the lock buckle to be pressed downward.

[0017] Furthermore, a guide portion is provided on the periphery of the unlocking member, and the guide portion forms a guide groove for the unlocking member to move along the first moving track;

[0018] A sedimentation groove for the unlocking member to move along the downward pressing direction is provided at the bottom of the guide groove close to one end of the lock hole.

[0019] Furthermore, the unlocking piece is sleeved on an end of the pressure latch away from the lock buckle, and a sliding connection structure is provided between the unlocking piece and the pressure latch.

[0020] Further, the end of the pressure bolt away from the lock buckle extends a connecting arm in a direction away from the lock buckle, the unlocking member is provided with a sleeve hole and a through hole connected to the sleeve hole, the unlocking member is sleeved on the end of the pressure bolt away from the lock buckle through the sleeve hole, and the connecting arm is sleeved into the through hole;

[0021] The compression latch is provided with a receiving hole at the connecting arm, one end of the elastic element is connected to the inner wall of the sleeve hole, and the other end is accommodated in the receiving hole and connected to the hole wall of the receiving hole.

[0022] Furthermore, the first housing includes a first middle shell and a first tail cover disposed on an end of the first middle shell away from the socket;

[0023] The plug further comprises a first wire sealing body, the plurality of first terminals pass through the first wire sealing body, and the first wire sealing body is sealed and fitted with the first terminals and the first middle shell;

[0024] The second housing comprises a second middle shell and a second tail cover disposed on an end of the second middle shell away from the plug;

[0025] The socket further comprises a second wire sealing body, the plurality of second terminals pass through the second wire sealing body, and the second wire sealing body is sealed and fitted with the second terminals and the second middle shell.

[0026] Further, the number of the first terminals and the number of the second terminals are both more than four, and the number of the first terminals is equal to the number of the second terminals.

[0027] Furthermore, it also includes a sealing member, which is arranged on the first shell and / or the second shell and is used to seal the matching portion between the plug and the socket.

[0028] Compared with the prior art, the present invention has the following beneficial effects: by setting a connecting lock mechanism, the connecting lock mechanism has a connecting component connecting the plug and the socket, and an unlocking member for unlocking the connecting component, wherein the unlocking member needs to move along a specific unlocking trajectory to complete the unlocking, and the unlocking trajectory includes at least two moving trajectories with different moving directions, that is, the unlocking member needs to move along at least two different directions to complete the unlocking of the plug and the socket, thereby greatly improving the connection reliability between the plug and the socket, and avoiding the abnormal separation of the plug and the socket to a great extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional diagram of a cable connector provided by an embodiment of the present invention;

[0030] Figure 2 is a stereogram of a plug provided by an embodiment of the present invention;

[0031] Figure 3 is a three-dimensional exploded view of a plug provided by an embodiment of the present invention;

[0032] Figure 4 is a three-dimensional diagram of a socket provided by an embodiment of the present invention;

[0033] Figure 5 is a three-dimensional exploded view of a socket provided by an embodiment of the present invention;

[0034] Figure 6 is a three-dimensional exploded view of a connection lock mechanism provided by an embodiment of the present invention;

[0035] Figure 7 is a cross-sectional schematic diagram of a cable connector provided by an embodiment of the present invention;

[0036] Figure 8 It is a three-dimensional diagram of a connection lock mechanism provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] like Figure 1-Figure 8 As shown, a cable connector with a secondary lock structure provided by an embodiment of the present invention includes a plug 10, a socket 20 plugged into and mated with the plug 10, and a connecting lock mechanism 30 for connecting the plug 10 and the socket 20, wherein the connecting lock mechanism 30 completes self-locking after the plug 10 and the socket 20 are plugged into and mated with each other, thereby limiting the disconnection of the plug 10 and the socket 20, and then the connecting lock mechanism 30 needs to be unlocked before the plug 10 and the socket 20 can be separated.

[0039] The plug 10 includes a first housing 11 and a plurality of first terminals 12 disposed in the first housing 11. The socket 20 includes a second housing 21 and a plurality of second terminals 22 disposed in the second housing 21. The plurality of second terminals 22 are disposed correspondingly to the plurality of first terminals 12, so that when the plug 10 is mated with the socket 20, the plurality of first terminals 12 and the plurality of second terminals 22 are connected one by one.

[0040] Specifically, the first housing 11 includes a first middle housing 111 and a first tail cover 112 covering an end of the first middle housing 111 away from the socket 20, and a plurality of first terminals 12 are embedded in the first middle housing 111 in parallel and at intervals. In addition, the second housing 21 includes a second middle housing 211 and a second tail cover 212 covering an end of the second middle housing 211 away from the plug 10, and a plurality of second terminals 22 are embedded in the second middle housing 211 in parallel and at intervals.

[0041] In some preferred cases of this embodiment, the number of the first terminals 12 and the second terminals 22 are both four or more, and the number of the first terminals 12 and the second terminals 22 are equal. Figure 1-Figure 6An optional example is shown in the figure, the number of the first terminal 12 and the second terminal 22 are both four, and both are arranged in a square matrix. In addition, in the specific implementation, one of the first terminal 12 and the second terminal 22 is a pin terminal and the other is a socket terminal. In the preferred embodiment, the first terminal 12 is a socket terminal and the second terminal 22 is a pin terminal, and of course, vice versa is also possible. At the same time, preferably, the pin diameter of the pin terminal is 3.6 cm or more, and the socket terminal is adapted thereto, so as to ensure a maximum current capacity of 50A. By designing the layout as above, a large current of 50A can be guaranteed to pass under the same volume. Of course, in other embodiments, the first terminal 12 and the second terminal 22 can also be other compatible connection terminals.

[0042] Among them, the connecting lock mechanism 30 includes a connecting component 31 and an unlocking member 32. The connecting component 31 can connect the first shell 11 and the second shell 21 when the plug 10 is matched with the socket 20. The unlocking member 32 is connected to the connecting component 31 and can move along an unlocking trajectory to make the connecting component 31 fall off and connect the first shell 11 and the second shell 21. The unlocking trajectory includes at least two moving trajectories with different moving directions, that is, in an embodiment of the present invention, the unlocking member 32 needs to move at least along two different directions to complete the unlocking of the plug 10 and the socket 20.

[0043] like Figure 1-6 As shown, the connection assembly 31 specifically includes a latch 311 and a lock catch 312, one of which is disposed on the first housing 11 and the other on the second housing 21. In this embodiment, the latch 311 is disposed on the first housing 11 and the lock catch 312 is disposed on the second housing 21. Of course, in other embodiments, the latch 311 and the lock catch 312 may be interchanged. A lock hole 31a is provided at one end of the latch 311 close to the lock catch 312. When the plug 10 is mated with the socket 20, the lock catch 312 is inserted into the lock hole 31a to connect the first housing 11 and the second housing 21, thereby locking the plug 10 and the socket 20 to prevent the plug 10 and the socket 20 from being abnormally separated.

[0044] Specifically, the middle of the latch 311 is connected with a rotating shaft 31b, and the rotating shaft 31b is rotatably connected to the first housing 11, so that the latch 311 can rotate freely around the rotating shaft 31b. In addition, the end of the latch 311 away from the lock catch 312 is connected with an elastic element 33, and the elastic element 33 is used to apply a thrust to the latch 311, so that the latch 311 tilts toward the lock catch 312, so that the latch 311 tightly fastens the lock catch 312, and restricts the latch 311 from being separated from the lock catch 312. In addition, in order to make the lock catch 312 better fit into the lock hole 31a when the plug 10 and the socket 20 are plugged in, a first inclined surface B1 is provided on the side of the lock catch 312 close to the latch 311, and a second inclined surface B2 is provided on the end of the latch 311 close to the lock catch 312. When the plug 10 is plugged into the socket 20, with the cooperation of the first inclined surface B1 and the second inclined surface B2, the lock buckle 312 will push up the pressure latch 311 until it is inserted into the lock hole 31a. After the lock buckle 312 is inserted, under the thrust of the elastic element 33, the pressure latch 311 is reset and tightly fastens the lock buckle 312.

[0045] In this embodiment, the unlocking member 32 is connected to the end of the pressure latch 311 away from the lock buckle 312, and the unlocking track includes a first moving track A1 moving along the pressure latch 311 and a second moving track A2 moving along the downward pressing direction. When the unlocking member 32 moves in the downward pressing direction, it will drive the end of the pressure latch 311 away from the lock buckle 312 to be pressed downward, and then drive the end of the pressure latch 311 close to the lock buckle 312 to be lifted, so that the lock buckle 312 is separated from the lock hole 31a, and the unlocking is completed. In this embodiment, the unlocking member 32 needs to first move along the pressure latch 311 and close to the lock buckle 312, and then move downward, such as Figure 1 Indicated by the arrow.

[0046] In specific implementation, a guide portion 113 is provided on the periphery of the unlocking member 32. In this embodiment, the guide portion 113 is a protrusion extending outward from the outer wall of the first shell 11, and the guide portion 113 forms a guide groove 114 for the unlocking member 32 to move along the first section of the moving trajectory A1. A sedimentation groove 115 is provided at the bottom of the guide groove 114 near one end of the lock hole 31a for the unlocking member 32 to move along the downward pressing direction. The unlocking piece 32 is sleeved on the end of the pressure latch 311 away from the lock buckle 312. Specifically, the end of the pressure latch 311 away from the lock buckle 312 extends a connecting arm 31c in the direction away from the lock buckle 312. The unlocking piece 32 is provided with a sleeve hole 321 and a through hole 322 connected to the sleeve hole 321. The unlocking piece 32 is sleeved on the end of the pressure latch 311 away from the lock buckle 312 through the sleeve hole 321, and the connecting arm 31c is sleeved into the through hole 322, thereby realizing double sleeve connection, thereby improving the stability and service life of the unlocking piece 32 and the pressure latch 311, and under the constraints of the pressure latch 311 and the guide portion 113, the unlocking piece 32 can be limited from escaping from the guide groove 114.

[0047] In addition, the pressure latch 311 is provided with a receiving hole 31d at the connecting arm 31c, one end of the elastic element 33 is connected to the inner wall of the sleeve hole 321, and the other end is accommodated in the receiving hole 31d and connected to the hole wall of the receiving hole 31d. The elastic element 33 arranged in this way can not only apply a thrust to the pressure latch 311 to make the pressure latch 311 tilt toward the lock buckle 312, but also provide a thrust to the unlocking member 32 to reset the unlocking member 32 after unlocking is completed. In a specific implementation, the elastic element 33 can be a spring, and the elastic element 33 can be set to multiple, for example, Figure 6 As shown, an elastic element 33 is arranged on each side of the connecting arm 31c, and each elastic element 33 corresponds to a receiving hole 31d.

[0048] When the locking cam 312 is in the closed position, the locking cam 314 is in the closed position, and the locking cam 314 is in the closed position.

[0049] In addition, in order to further improve the stability of the fit, such as Figure 8 As shown, a sliding connection structure 34 is provided between the unlocking member 32 and the pressure latch 311. The sliding connection structure 34 includes a sliding groove 341 arranged at the bottom of the pressure latch 311, and a slider 342 arranged on the inner wall of the sleeve hole 321. The slider 342 slides with the sliding groove 341, thereby further improving the stability of the unlocking member 32 moving on the pressure latch 311 and improving the service life.

[0050] The plug 10 further includes a first wire sealing body 13, which is disposed in the first middle shell 111 and is disposed close to the first tail cover 112, and a plurality of first terminals 12 pass through the first wire sealing body 13, and the first wire sealing body 13 is sealed and fitted with the first terminals 12 and the first middle shell 111, thereby achieving sealing. The socket 20 further includes a second wire sealing body 23, which is disposed in the second middle shell 211 and is disposed close to the second tail cover 212, and a plurality of second terminals 22 pass through the second wire sealing body 23, and the second wire sealing body 23 is sealed and fitted with the second terminals 22 and the second middle shell 211, thereby achieving sealing.

[0051] At the same time, the cable connector further includes a seal 40, which is disposed on the first housing 11 and / or the second housing 21 and is used to seal the mating portion between the plug 10 and the socket 20. Specifically, in an optional implementation of this embodiment, the seal 40 is specifically a sealing ring, and the seal 40 is specifically disposed on the first housing 11 and is used to seal the plug-in mating portion between the plug 10 and the socket 20.

[0052] Therefore, the cable connector is provided with three sealing structures at different positions, which can fully seal the cable connector, improve the sealing performance of the entire cable connector, and meet more stringent waterproof requirements.

[0053] In summary, the cable connector in the embodiment of the present invention is provided with a connection lock mechanism 30, which has a connection component 31 connecting the plug 10 and the socket 20, and an unlocking member 32 for unlocking the connection component 31, wherein the unlocking member 32 needs to move along a specific unlocking trajectory to complete the unlocking, and the unlocking trajectory includes at least two moving trajectories with different moving directions, that is, the unlocking member 32 needs to move along at least two different directions to complete the unlocking of the plug 10 and the socket 20, thereby greatly improving the connection reliability between the plug 10 and the socket 20, and avoiding the abnormal separation of the plug 10 and the socket 20 to a great extent.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable connector with a secondary lock structure, characterized in that: The cable connector comprises: A plug, comprising a first housing and a plurality of first terminals arranged in the first housing; A socket, mating with the plug, comprising a second housing and a plurality of second terminals arranged in the second housing, wherein the plurality of second terminals are arranged corresponding to the plurality of first terminals, so that when the plug is mated with the socket, the plurality of first terminals and the plurality of second terminals are connected one by one; A connection lock mechanism, comprising a connection assembly and an unlocking member, wherein the connection assembly can connect the first shell and the second shell when the plug is matched with the socket, and the unlocking member is connected to the connection assembly and can move along an unlocking track to make the connection assembly fall off and connect the first shell and the second shell; The unlocking trajectory includes at least two moving trajectories with different moving directions.

2. The cable connector according to claim 1, characterized in that: The connecting assembly comprises a pressure latch and a lock catch, one of the pressure latch and the lock catch is arranged on the first housing, and the other is arranged on the second housing; A locking hole is provided at one end of the compression latch close to the locking buckle. When the plug is matched with the socket, the locking buckle is inserted into the locking hole to connect the first shell and the second shell.

3. The cable connector according to claim 2, characterized in that: The middle part of the pressure latch is connected to a rotating shaft, and one end of the pressure latch away from the lock buckle is connected to an elastic element; The pressure latch can rotate freely around the rotating shaft, and the elastic element is used to apply a thrust to the pressure latch to make the pressure latch tilt toward the lock buckle.

4. The cable connector according to claim 3, characterized in that: The unlocking member is connected to an end of the pressure latch away from the lock buckle, and the unlocking track includes a first moving track moving along the pressure latch and a second moving track moving along the pressing direction; When the unlocking member moves along the pressing direction, it drives the end of the pressing latch away from the lock buckle to be pressed downward.

5. The cable connector according to claim 4, characterized in that: A guide portion is provided on the periphery of the unlocking member, and the guide portion forms a guide groove for the unlocking member to move along the first moving track; A sedimentation groove for the unlocking member to move along the downward pressing direction is provided at the bottom of the guide groove close to one end of the lock hole.

6. The cable connector according to claim 4 or 5, characterized in that: The unlocking piece is sleeved on one end of the pressure latch away from the lock buckle, and a sliding connection structure is provided between the unlocking piece and the pressure latch.

7. The cable connector according to claim 6, characterized in that: The end of the pressure latch away from the lock buckle extends a connecting arm in a direction away from the lock buckle, the unlocking member is provided with a sleeve hole and a through hole connected to the sleeve hole, the unlocking member is sleeved on the end of the pressure latch away from the lock buckle through the sleeve hole, and the connecting arm is sleeved into the through hole; The compression latch is provided with a receiving hole at the connecting arm, one end of the elastic element is connected to the inner wall of the sleeve hole, and the other end is accommodated in the receiving hole and connected to the hole wall of the receiving hole.

8. The cable connector according to claim 1, characterized in that: The first housing comprises a first middle shell and a first tail cover disposed on an end of the first middle shell away from the socket; The plug further comprises a first wire sealing body, the plurality of first terminals pass through the first wire sealing body, and the first wire sealing body is sealed and fitted with the first terminals and the first middle shell; The second housing includes a second middle shell and a second tail cover disposed on an end of the second middle shell away from the plug; The socket further comprises a second wire sealing body, the plurality of second terminals pass through the second wire sealing body, and the second wire sealing body is sealed and fitted with the second terminals and the second middle shell.

9. The cable connector according to claim 1, characterized in that: The number of the first terminals and the number of the second terminals are both more than four, and the number of the first terminals is equal to the number of the second terminals.

10. The cable connector according to claim 1, characterized in that: It also includes a sealing member, which is arranged on the first shell and / or the second shell and is used to seal the matching portion between the plug and the socket.

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