High-strength connector for automobile wire harness

Abstract

The invention relates to the technical field of wire harness connection, in particular to an automobile wire harness high-strength connector which comprises a male head and a female head which are arranged on the outer side, attaching plates are slidably arranged on the four inner side faces of the female head, sliding blocks are slidably arranged on the upper side face and the lower side face of the female head front and back, and spring telescopic cylinders are fixedly installed on the left sides of the sliding blocks. And wedge-shaped blocks used for pushing the corresponding attaching plates to abut against the male head are fixedly installed on the male head, the outer side of the male head is sleeved with a linkage frame in a left-right sliding mode, and shifting blocks are arranged on the upper side face and the lower side face of the linkage frame in a sliding mode. A gap is reserved between the inner side face of the attaching plate and the insertion face of the male head, so that the male head can be easily inserted into the female head, rapid insertion is achieved, if the male head is not inserted in place, the locking assembly enables the sliding block and the shifting block not to move, if external force is removed, the male head and the female head can be pushed away from each other through restoring elastic force of the spring telescopic cylinder, and the connection reliability is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness connection, in particular to a high-strength connector for an automobile wire harness. Background Art

[0002] The stability of automotive wiring harness connections is directly related to the reliability and safety of the vehicle's electrical system. If the connection is loose or poorly connected, it may lead to signal transmission interruption, abnormal function of electrical equipment, and even cause serious faults such as short circuits and fires. Especially when the car is driving, the wiring harness connector is often in complex environments such as high-frequency vibration, drastic temperature changes, humidity or dust. These external factors further increase the requirements for the mechanical strength and contact reliability of the connector.

[0003] Traditional automotive wiring harness connectors usually adopt a plug-and-socket plug-in structure, achieving electrical connection through contact between metal terminals. This type of connector has a simple structure and low cost, and is widely used in various types of vehicle electrical systems. The plug and socket are mated together and rely on the shell structure for initial positioning and fixation.

[0004] However, to ensure a stable connection between the plug and socket after insertion, the two are usually designed to closely match each other in size. This design leads to excessive friction between the plug and socket shells during the insertion process due to thermal expansion and contraction caused by manufacturing tolerances or changes in ambient temperature, resulting in a significant increase in insertion and removal force, making assembly and disassembly difficult.

[0005] It is also easy for the assembly to be improper due to excessive insertion resistance, resulting in that although the plug and socket are partially connected, the electrical contact does not reach the ideal state, resulting in a false connection. This problem is difficult to detect in time through visual inspection, thus laying the hidden danger of electrical failure. Summary of the Invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-strength connector for automotive wiring harnesses, including a protective plug and a socket on the outside, with fitting plates slidingly provided on the four inner sides of the socket, and sliding blocks sliding back and forth on the upper and lower sides of the socket, a spring telescopic cylinder fixedly installed on the left side of the sliding block, a wedge-shaped block for pushing the corresponding fitting plate against the plug fixedly installed on the plug, a linkage frame slidingly sleeved on the left and right sides of the plug, and toggle blocks slidingly provided on the upper and lower sides of the linkage frame.

[0007] The socket and the plug are also jointly provided with a locking assembly for limiting the sliding block and the toggle block, and a locking piece corresponding to the wedge block is slidably provided inside the plug.

[0008] When the socket is plugged with the plug, there is a gap between the inner side of the fitting plate and the plug insertion surface, and the plug drives the toggle block to compress the spring telescopic cylinder. After the plug is inserted in place, the wedge block pushes the corresponding fitting plate against the plug insertion surface, and the locking assembly unlocks the sliding block and the toggle block, and moves the sliding block and the toggle block backward. The elastic force of the spring telescopic cylinder drives the linkage frame to move left, and the linkage frame drives the locking piece to be connected to the corresponding fitting plate.

[0009] Preferably, the locking assembly comprises a plug post fixedly installed on the sliding block near the socket side, and the fitting plate is provided with a groove for the plug post to insert.

[0010] Preferably, the locking assembly further comprises a plug pin slidingly arranged inside the toggle block, the plug is provided with a plug slot for the plug pin to insert, a square rod for pushing the plug pin out of the plug slot is fixedly installed on the left side of the sliding block and inside the spring telescopic cylinder, and a return spring sheet is arranged between the plug pin and the toggle block.

[0011] Preferably, an L-shaped guide groove is arranged on the linkage frame corresponding to the position of the toggle block, the toggle block is slidingly connected to the L-shaped guide groove along the track of the L-shaped guide groove, and a blocking block is fixedly installed on the plug for blocking the left movement of the toggle block.

[0012] Preferably, the left part of the locking piece is in a rectangular block structure, and the right part is in an L-shaped structure. A pushing spring sheet is arranged between the rectangular block structure of the locking piece and the plug, and a semicircular column is fixedly installed on the left side of the fitting plate for connecting the L-shaped structure of the locking piece together by means of buckling.

[0013] Preferably, an inclined surface is arranged on the side of the rectangular block structure of the locking piece away from the plug. When the linkage frame moves left, the locking piece is pushed to move into the plug by the contact between the linkage frame and the inclined surface of the locking piece, so as to connect the locking piece to the corresponding fitting plate.

[0014] Preferably, a permanent magnet block for adsorbing the fitting plate is fixedly installed on each of the four inner sides of the socket, and a stop plate is hingedly connected to the upper and lower fitting plates. The right end of the stop plate covers the permanent magnet block and attracts the stop plate.

[0015] Preferably, an inclined groove is arranged on the upper and lower plug insertion surfaces of the plug for the right end of the stop plate to extend into, a waist-shaped block is fixedly installed on the side of the stop plate away from the middle of the socket, and a pushing block is fixedly installed on the sliding block for pushing the waist-shaped block to deflect.

[0016] Preferably, an elastic buckle plate is fixedly installed on the rear side of the socket, a U-shaped frame is slidingly arranged on the plug, and the front side of the U-shaped frame is connected to the left and right sliding blocks.

[0017] Preferably, a clamping groove is arranged on the left side of the vertical section of the U-shaped frame, and a barb structure for clamping into the clamping groove is arranged on the left end of the front side of the elastic buckle plate.

[0018] The beneficial effects of the present application are: firstly, the present application adopts the abutting plate to abut and connect the plug-in surface of the plug, and a gap is reserved between the inner side of the abutting plate and the plug-in surface of the plug in the initial stage of plugging, so that the plug can be easily inserted into the socket, effectively avoiding the plugging resistance caused by manufacturing tolerance or thermal expansion and cold shrinkage, realizing quick plugging, and in the plugging process, the plug drives the push block to compress the spring telescopic cylinder to store energy, if the plug is not plugged in place, the locking assembly limits the sliding block and the push block, so that they cannot move, at this time, if the external force is removed, the restoring force of the spring telescopic cylinder can push the plug and the socket away from each other, avoiding the false connection phenomenon caused by insufficient insertion force, and ensuring the reliability of the connection.

[0019] Secondly, the spring telescopic cylinder is compressed and stores elastic energy in the plugging process, when the plug is plugged in place and the sliding block and the push block are moved backward, the elastic force of the spring telescopic cylinder is transferred to act on the locking piece, so that the locking piece completes the connection with the abutting plate through the buckling semicylinder, so that the continuous elastic force of the spring telescopic cylinder provides stable locking force, effectively improving the stability of the plug and the socket in the complex vibration environment of automobile driving.

[0020] Thirdly, after the plug and the socket are plugged in place, the right end of the stop plate is pushed into the inclined groove of the plug by the backward movement of the sliding block, thereby forming a mechanical locking, and the stop plate blocks the inclined groove on the plug, which can effectively prevent the plug from accidentally exiting from the inside of the socket due to vibration or external force, further enhancing the vibration resistance and stability of the connection.

[0021] Fourthly, the elastic buckle plate and the U-shaped frame are matched, so that when the socket and the plug are plugged in place and the push block is moved backward, the U-shaped frame drives the clamping groove on the vertical section to move to a position aligned with the barb structure of the elastic buckle plate, so that the barb structure of the elastic buckle plate is clamped into the clamping groove inside the U-shaped frame, realizing clamping, and further enhancing the connection stability of the elastic buckle plate and the U-shaped frame, thereby providing further guarantee for the stable connection of the socket and the plug in the complex environment of automobile driving. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in conjunction with the drawings and examples.

[0023] Figure 1 is a schematic diagram of the overall structure of the present application.

[0024] Figure 2 is a partial sectional view of the present application.

[0025] Figure 3 is a schematic diagram of the structure of the plug, the socket, the sliding block and the spring telescopic cylinder in the present application.

[0026] Figure 4It is the partial section view of the socket, the retreat stop board, the permanent magnet block and the adhering board in the application.

[0027] Figure 5 It is the partial section view of the sliding block, the inserting column, the square rod and the spring telescopic cylinder in the application.

[0028] Figure 6 It is the partial section view of the inserting column, the waist-shaped block, the retreat stop board and the square rod in the application.

[0029] Figure 7 It is the structure schematic view of the plug, the bolt, the pushing block and the blocking block in the application.

[0030] Figure 8 It is the partial section view of the plug, the bolt, the lock piece and the wedge-shaped block in the application.

[0031] Figure 9 It is the partial section view of the linkage frame, the pushing block and the L-shaped guide groove in the application.

[0032] Figure 10 It is the structure schematic view of the lock piece in the application.

[0033] In the figure: 1, socket; 2, plug; 3, locking assembly; 4, No. 1 protective cover; 5, No. 2 protective cover; 11, adhering board; 12, sliding block; 13, spring telescopic cylinder; 21, wedge-shaped block; 22, linkage frame; 23, pushing block; 24, lock piece; 25, elastic buckle plate; 31, inserting column; 32, square rod; 33, bolt; 111, permanent magnet block; 112, retreat stop board; 113, waist-shaped block; 114, pushing block; 221, L-shaped guide groove; 231, blocking block; 241, semicircular column; 251, U-shaped frame. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below. The embodiments described below are exemplary only, and are not intended to be limiting of the present application. Unless otherwise indicated, the technical or conditions not specified in the embodiments are carried out according to the techniques or conditions described in the literature in the art or according to the product instructions.

[0035] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 8 , a high-strength connector for automobile wiring harness includes a protective plug 2 and a socket 1 on the outside, an adhering board 11 is slidingly arranged on each of the four inner sides of the socket 1, a sliding block 12 is slidingly arranged on the upper and lower sides of the socket 1, a spring telescopic cylinder 13 is fixedly installed on the left side of the sliding block 12, a wedge-shaped block 21 is fixedly installed on the plug 2 for pushing the corresponding adhering board 11 to abut against the plug 2, a linkage frame 22 is slidingly sleeved on the outside of the plug 2, and a pushing block 23 is slidingly arranged on the upper and lower sides of the linkage frame 22.

[0036] Referring to Figure 2 , Figure 3 , Figure 7 and Figure 8 , the socket 1 and the plug 2 are also provided with a locking assembly 3 for limiting the sliding block 12 and the push block 23, and the plug 2 is internally provided with a buckle 24 corresponding to the wedge block 21.

[0037] When it is needed to connect the wire harness on the socket 1 with the wire harness on the plug 2, the operator holds the socket 1 and the plug 2 to be inserted, at this time, the side of the abutting plate 11 away from the middle of the socket 1 abuts against the frame of the socket 1, so that there is a gap between the side of the abutting plate 11 close to the middle of the socket 1 and the plug-in surface of the plug 2, so that the operator will not be tired due to the friction of the housings of the socket 1 and the plug 2 when inserting the socket 1 and the plug 2, and then the socket 1 and the plug 2 are conveniently inserted into place.

[0038] In the process of inserting the socket 1 and the plug 2 close to each other, the plug 2 drives the push block 23 thereon to contact the left end of the spring telescopic cylinder 13, so that the push block 23 compresses the spring telescopic cylinder 13 during the insertion process, and the locking assembly 3 locks and limits the sliding block 12 and the push block 23 during the insertion process, so that the sliding block 12 and the push block 23 cannot move independently, so that when the socket 1 and the plug 2 are not inserted into place and the external force on the socket 1 and the plug 2 is removed, the spring telescopic cylinder 13 drives the socket 1 and the plug 2 to quickly separate from each other by the elastic force stored therein, avoiding the situation that the socket 1 and the plug 2 are not assembled in place, and the virtual connection is difficult to be found by visual inspection.

[0039] When the socket 1 and the plug 2 are inserted to be close to the position, the left side of the abutting plate 11 contacts the wedge surface of the wedge block 21, so that when the socket 1 drives the abutting plate 11 to continue to move left, the abutting plate 11 moves along the wedge surface of the wedge block 21 towards the middle of the socket 1, so that after the socket 1 and the plug 2 are inserted into place, the four abutting plates 11 abut against the four plug-in surfaces of the plug 2, thereby filling the gap between the socket 1 and the plug 2, and ensuring the connection stability of the socket 1 and the plug 2 after being inserted into place.

[0040] It should be noted that the left side of the abutting plate 11 is provided with an inclined surface matching the wedge surface of the wedge block 21 at the corresponding position, so that the abutting plate 11 smoothly moves under the pushing of the wedge block 21, and the edge of the right end of the wedge block 21 away from the side of the plug 2 is provided with a chamfer, which can smoothly insert the wedge block 21 between the abutting plate 11 and the frame of the socket 1.

[0041] When the socket 1 is inserted into the plug 2, the locking assembly 3 automatically unlocks the sliding block 12 and the push block 23, and then the operator manually pushes the sliding block 12 and the push block 23 backward, so that the spring telescopic cylinder 13 pushes the push block 23 to abut against the linkage frame 22 and pushes the linkage frame 22 leftward, the linkage frame 22 pushes the locking piece 24 to the position close to the middle of the plug 2, so that the locking piece 24 is buckled on the corresponding position of the cladding plate 11, thereby locking the locking piece 24 and the cladding plate 11 together, and further locking the socket 1 and the plug 2 together.

[0042] It should be noted that, as shown in Figure 2 , the socket 1 is fixedly installed with a first protective cover 4 on the outside, and the plug 2 is fixedly installed with a second protective cover 5 on the outside, when the socket 1 and the plug 2 are inserted together, the second protective cover 5 is inserted into the first protective cover 4, thereby protecting the main locking structure of the application, and the second protective cover 5 and the first protective cover 4 have a gap, which will not affect the smoothness of the insertion.

[0043] In order to prevent the sliding block 12 and the push block 23 from moving backward when the socket 1 and the plug 2 are not inserted into the position, that is, to ensure that the elastic force of the compressed spring telescopic cylinder 13 can fully act on the function of separating the socket 1 and the plug 2 during the insertion of the socket 1 and the plug 2, thereby forming a sequential control locking mechanism, the application designs the following structure: referring to Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 , the locking assembly 3 includes a plug post 31 fixedly installed on the sliding block 12 close to the side of the socket 1, the upper and lower cladding plates 11 are provided with grooves for inserting the plug post 31, the push block 23 is internally provided with a plug pin 33 sliding up and down, the plug 2 is provided with a slot for inserting the plug pin 33, the sliding block 12 is fixedly installed with a square bar 32 on the left side and in the spring telescopic cylinder 13 for pushing the plug pin 33 out of the slot, and the plug pin 33 and the push block 23 are provided with a return spring.

[0044] When the socket 1 and the plug 2 are not inserted into the position, the cladding plate 11 abuts against the frame of the socket 1, so that the plug post 31 on the sliding block 12 is inserted into the groove of the cladding plate 11, thereby locking the forward and backward movement of the sliding block 12 by the cladding plate 11, at the same time, the elastic force of the return spring pushes the plug pin 33 to insert into the slot of the plug 2, so that the push block 23 is locked together with the plug 2 by the plug pin 33.

[0045] At this time, since the sliding block 12 is locked together with the socket 1, the push block 23 is locked together with the plug 2, so that when the socket 1 and the plug 2 are close to each other, the push block 23 and the sliding block 12 are close to each other and compress the spring telescopic cylinder 13, so that the elastic force of the spring telescopic cylinder 13 acts on the push away from the socket 1 and the plug 2, realizing the function that the socket 1 and the plug 2 are separated from each other when not inserted in place, facilitating subsequent timely discovery and preventing false connection.

[0046] When the socket 1 and the plug 2 are inserted in place, the abutting plate 11 moves to abut against the plug surface of the plug 2, so that the abutting plate 11 drives the groove on it away from the corresponding plug post 31, so that the plug post 31 exits the groove, and at the same time the sliding block 12 drives the square rod 32 to insert into the inside of the push block 23, so that the square rod 32 contacts the latch 33 and pushes the latch 33 out of the plug slot, thereby automatically unlocking the sliding block 12 and the push block 23.

[0047] It should be noted that, as shown in Figure 5 and Figure 8 , the latch 33 is provided with a wedge-shaped groove arranged symmetrically front and back, and the square rod 32 is fixedly installed with two cylindrical surfaces arranged symmetrically front and back on the left end face, when the square rod 32 contacts the latch 33, the cylindrical surfaces on the square rod 32 contact the wedge-shaped surfaces of the wedge-shaped groove on the latch 33, so that the square rod 32 pushes the latch 33 to move away from the plug 2.

[0048] In order to facilitate the active operation of the operator to tightly lock the socket 1 and the plug 2 together, the present application designs the following structure: refer to Figure 7 , Figure 8 and Figure 9 , the linkage frame 22 is provided with an L-shaped guide groove 221 corresponding to the position of the push block 23, the push block 23 is slidably connected to the L-shaped guide groove 221 along the track of the L-shaped guide groove 221, and the plug 2 is fixedly installed with a blocking block 231 for blocking the left movement of the push block 23.

[0049] When the socket 1 and the plug 2 are inserted in place, the elastic force of the spring telescopic cylinder 13 pushes the push block 23 to abut against the blocking block 231, so that the elastic force of the spring telescopic cylinder 13 is still used to push the socket 1 and the plug 2 apart at this time, and then the operator manually pushes the push block 23 and the sliding block 12 backward, the push block 23 moves along the longitudinal section of the L-shaped guide groove 221, so that the push block 23 is completely moved to the rear side of the blocking block 231, and then the elastic force of the spring telescopic cylinder 13 pushes the push block 23 to move left along the transverse section of the L-shaped guide groove 221 and abut against the linkage frame 22, so that the linkage frame 22 is synchronously moved left and pushes all the lockers 24 to the direction close to the middle of the plug 2, thereby making the lockers 24 locked together with the abutting plates 11 at the corresponding positions.

[0050] It needs to be emphasized that, compared with the prior art of directly locking after plugging, the present application can strengthen the operator's awareness of checking the plugging effect after the plug 2 is plugged into the socket 1. If the operator does not push the push block 23 and the sliding block 12 after plugging, the spring telescopic cylinder 13 can still push the plug 2 and the socket 1 apart, thereby reducing the operator's plugging error, effectively eliminating the hidden danger of virtual connection caused by operation error, and the present application can convert the continuous elastic force of the spring telescopic cylinder 13 into stable locking force compared with the prior art of locking the plug 2 and the socket 1 by using a locking pin. Compared with the prior art, the present application can effectively improve the stability of the plug 2 and the socket 1 in the complex vibration environment of the vehicle driving.

[0051] It needs to be emphasized that, when the square rod 32 pushes the latch 33 out of the slot, there is a gap between the end of the latch 33 close to the plug 2 and the plug 2, so that when the spring telescopic cylinder 13 pushes the push block 23 and the latch 33 leftward, the latch 33 first moves to the left part of the slot, and then the latch 33 is pushed by the return spring to abut against the plug 2.

[0052] In order to make the left-moving linkage frame 22 drive all the locking pieces 24 to move toward the middle part of the plug 2, the present application is designed as follows: referring to Figure 4 、 Figure 7 、 Figure 8 and Figure 10 , the left part of the locking piece 24 is in a rectangular block structure, and the right part is in an L-shaped structure. The side of the rectangular block structure of the locking piece 24 away from the plug 2 is provided with an inclined surface. When the linkage frame 22 moves leftward, the locking piece 24 is pushed to move toward the inside of the plug 2 through the contact between the linkage frame 22 and the inclined surface of the locking piece 24, and the locking piece 24 is connected to the corresponding abutting plate 11.

[0053] In order to make the locking piece 24 connect and lock with the abutting plate 11 at the corresponding position, the present application is designed as follows: continuing to refer to Figure 4 、 Figure 7 、 Figure 8 and Figure 10 , the rectangular block structure of the locking piece 24 is provided with a push spring between the rectangular block structure and the plug 2, and the left side of the abutting plate 11 is fixedly provided with a semi-cylinder 241 for connecting with the L-shaped structure of the locking piece 24 through buckling.

[0054] When the plug 2 is inserted into the socket 1, the half-cylinder 241 on the abutting plate 11 is completely moved to the transverse section of the L-shaped structure of the locking piece 24, and when the locking piece 24 is moved towards the middle of the plug 2, the L-shaped structure of the locking piece 24 is buckled on the half-cylinder 241, so as to connect the locking piece 24 and the abutting plate 11 together, and then the plug 2 and the socket 1 are locked together, and through the continuous elastic force of the spring telescopic cylinder 13, the plug 2 and the socket 1 can be stably connected together to cope with the complex environment during driving.

[0055] In order to further improve the stability of the connection between the plug 2 and the socket 1, the following structure is designed: Figure 3 、 Figure 4 、 Figure 6 and Figure 7 The four inner sides of the socket 1 are fixedly provided with permanent magnets 111 for adsorbing the abutting plate 11, and the upper and lower abutting plates 11 are hingedly provided with stop plates 112 corresponding to the right ends of the permanent magnets 111 and attracting the stop plates 112.

[0056] Continuing to refer to Figure 3 、 Figure 4 、 Figure 6 and Figure 7 The upper and lower plug-in surfaces of the plug 2 are provided with inclined grooves for the right ends of the stop plates 112 to extend into, the side away from the middle of the socket 1 of the stop plate 112 is fixedly provided with a waist-shaped block 113, and the sliding block 12 is fixedly provided with a pushing block 114 for pushing the waist-shaped block 113 to deflect.

[0057] When the plug 2 and the socket 1 are not yet inserted into place, the permanent magnets 111 simultaneously adsorb the stop plates 112 and the abutting plates 11 at the corresponding positions, so as to ensure the gap between the abutting plate 11 and the plug 2 during insertion, and when the plug 2 and the socket 1 are inserted into place, the abutting plate 11 drives the stop plate 112 to move to the position corresponding to the inclined groove, and when the sliding block 12 moves backward, the sliding block 12 pushes the waist-shaped block 113 through the pushing block 114, so that the waist-shaped block 113 drives the right end of the stop plate 112 to deflect into the inside of the inclined groove, thereby forming a mechanical locking, and then the stop plate 112 blocks the inclined groove on the plug 2, which can effectively prevent the plug 2 from accidentally exiting from the inside of the socket 1 due to vibration or external force, and further enhances the vibration resistance and stability of the connection.

[0058] It should be noted that the waist-shaped block 113 is in a vertical state when the plug 2 and the socket 1 are not yet inserted, and the right side of the pushing block 114 is arc-shaped and matched with the waist-shaped block 113, and the front right end of the pushing block 114 is located in front of the waist-shaped block 113 and on the left side of the right side surface of the waist-shaped block 113, so that when the pushing block 114 moves backward, the pushing block 114 pushes the waist-shaped block 113, and the waist-shaped block 113 drives the stop plate 112 to deflect.

[0059] In order to improve the connection stability of the socket 1 and the plug 2 in the complex environment of automobile driving, the application designs the following structure: refer to Figure 3 and Figure 7 The rear side of the socket 1 is fixedly installed with an elastic buckle plate 25, and the plug 2 is slidably provided with a U-shaped frame 251 in front and back directions, the front side of the U-shaped frame 251 is slidably connected with two push blocks 23 in left and right directions, the left side of the vertical section of the U-shaped frame 251 is provided with a clamping groove, and the front side of the left end of the elastic buckle plate 25 is provided with a barb structure for clamping into the clamping groove.

[0060] When the socket 1 and the plug 2 are plugged into place, the barb structure of the elastic buckle plate 25 moves to the left part of the vertical section of the U-shaped frame 251, but at this time the elastic buckle plate 25 does not contact the U-shaped frame 251, avoiding hindering the spring telescopic cylinder 13 from pushing the socket 1 and the plug 2 apart, when the operator moves the push block 23 backward, the push block 23 drives the vertical section of the U-shaped frame 251 to move to the right side of the barb structure of the elastic buckle plate 25, thereby blocking the elastic buckle plate 25, and the protruding structure of the elastic buckle plate 25 is clamped into the clamping groove of the U-shaped frame 251 to realize clamping, thereby strengthening the connection stability of the socket 1 and the plug 2.

[0061] And since the socket 1 and the plug 2 are connected, the spring telescopic cylinder 13 pushes the push block 23 to be located in the horizontal section of the L-shaped guide groove 221, so that the push block 23 cannot move forward and backward without human force, thereby ensuring that the position of the U-shaped frame 251 does not change, further strengthening the connection stability of the elastic buckle plate 25 and the U-shaped frame 251, thereby providing further guarantee for the stable connection of the socket 1 and the plug 2 in the complex environment of automobile driving.

[0062] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the application.

[0063] In addition, the terms "first", "second", "one", "two" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0064] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-strength connector for automotive wiring harnesses, comprising a plug and a socket with outer protection, characterized in that: The four inner sides of the socket are all slidably provided with fitting plates, and the upper and lower sides of the socket are all provided with sliding blocks that slide forward and backward. A spring telescopic cylinder is fixedly installed on the left side of the sliding block. A wedge-shaped block for pushing the corresponding fitting plate against the plug is fixedly installed on the plug. A linkage frame is provided on the outer side of the plug for sliding left and right. Toggle blocks are slidably provided on the upper and lower sides of the linkage frame. The socket and the plug are also provided with a locking assembly for limiting the sliding block and the toggle block, and a locking piece corresponding to the wedge block is slidably provided inside the plug; When the socket and the plug are plugged in, there is a gap between the inner side of the fitting plate and the plug-in surface. At the same time, the plug drives the toggle block to compress the spring telescopic cylinder. After the plug is plugged in, the wedge block pushes the corresponding fitting plate tightly against the plug-in surface, and the locking assembly unlocks the sliding block and the toggle block, moves the sliding block and the toggle block backward, and the elastic force of the spring telescopic cylinder drives the linkage frame to move left, and the linkage frame drives the locking part to connect to the corresponding fitting plate.

2. The high-strength connector for automotive wiring harness according to claim 1, characterized in that: The locking assembly includes a plug post fixedly mounted on a side of the sliding block close to the socket, and a groove for inserting the plug post is provided on the bonding plate.

3. The high-strength connector for automotive wiring harness according to claim 1, characterized in that: The locking assembly also includes a pin that slides up and down inside the toggle block, a slot for the pin to be inserted into the plug, a square rod fixedly installed on the left side of the sliding block and inside the spring telescopic cylinder for pushing the pin out of the slot, and a return spring sheet is provided between the pin and the toggle block.

4. The high-strength connector for automotive wiring harness according to claim 1, characterized in that: An L-shaped guide groove is provided on the linkage frame at a position corresponding to the toggle block. The toggle block is slidably connected to the L-shaped guide groove along the track of the L-shaped guide groove. A blocking block for blocking the toggle block from moving left is fixedly installed on the plug.

5. The high-strength connector for automotive wiring harness according to claim 1, characterized in that: The left part of the locking part is a rectangular block structure and the right part is an L-shaped structure. A pushing spring is provided between the rectangular block structure of the locking part and the plug. A semi-cylinder is fixedly installed on the left side of the bonding plate for connecting with the L-shaped structure of the locking part by snapping.

6. The high-strength connector for automotive wiring harness according to claim 5, characterized in that: The rectangular block structure of the locking part is provided with an inclined surface on the side away from the plug. When the linkage frame moves to the left, the locking part is pushed toward the inside of the plug through the contact between the linkage frame and the inclined surface of the locking part, and the locking part is connected to the corresponding bonding plate.

7. The high-strength connector for automotive wiring harness according to claim 1, characterized in that: Permanent magnetic blocks for adsorbing the laminating plates are fixedly mounted on the four inner sides of the socket, and anti-retraction plates are hinged on the upper and lower laminating plates. The corresponding permanent magnetic blocks cover the right end of the anti-retraction plates and attract the anti-retraction plates.

8. The high-strength connector for automotive wiring harness according to claim 7, characterized in that: The upper and lower plugging surfaces of the plug are provided with inclined grooves for the right end of the retaining plate to extend into, a waist-shaped block is fixedly installed on the side of the retaining plate away from the middle of the socket, and a pushing block for pushing the waist-shaped block to deflect is fixedly installed on the sliding block.

9. The high-strength connector for automotive wiring harness according to claim 1, characterized in that: An elastic buckle plate is fixedly installed on the rear side of the socket, and a U-shaped frame is provided on the plug for sliding forward and backward. The front side of the U-shaped frame is connected to the two toggle blocks for sliding left and right.

10. The high-strength connector for automotive wiring harness according to claim 9, characterized in that: A card slot is provided on the left side of the vertical section of the U-shaped frame, and a barb structure for being inserted into the card slot is provided on the front side of the left end of the elastic buckle plate.

Images