Electric connector assembly

Abstract

The utility model discloses an electric connector assembly, which comprises an insulating body, a plurality of terminal grooves arranged in at least one row, a limiting groove which is concavely arranged upwards from the lower surface of the insulating body and is positioned behind the plurality of terminal grooves, at least one accommodating cavity which is positioned behind the limiting groove, and a first wall and a second wall which are respectively arranged on the upper side and the lower side of the accommodating cavity; the limiting piece is installed in the limiting groove, a receding space is concavely formed forwards from the rear end of the limiting piece, and a third wall is arranged on the lower side of the receding space; the flat conductive part is provided with a conductive area, the conductive terminals are provided with butt joint parts and crimping parts, the crimping parts of the row of conductive terminals are crimped and fixed in the conductive area in the vertical direction, the insulating coating part coats and fixes the conductive area and the crimping parts, the insulating coating part is accommodated in the accommodating cavity, the front end of the insulating coating part enters the abdicating space, and the first wall stops the insulating coating part from moving upwards. And the third wall is closer to the insulating coating part than the second wall, and the third wall stops the insulating coating part from moving downwards, so that poor contact caused by loosening of the crimping part and the conductive region is avoided.

Description

Technical Field

[0001] The utility model relates to an electrical connector assembly, in particular to an electrical connector assembly capable of stably connecting and conducting a conductive terminal and a flat conductive member.

Background Art

[0002] With the rapid development of new energy vehicles, the problem of battery pack heating in new energy vehicles urgently needs to be solved. In order to avoid the overheating of the battery pack affecting the operation of new energy vehicles, it is necessary to monitor the temperature of the battery pack in real time. At present, most use BMS (Battery Management System) and temperature signal acquisition wire harnesses to monitor the temperature of the battery pack in real time. Due to its flat shape, small size, and high temperature resistance characteristics, FPC cables are currently being rapidly promoted and applied in BMS signal acquisition wire harnesses.

[0003] There is a prior BMS electrical connector assembly, which has an insulating body. The insulating body has a receiving cavity. A plurality of conductive terminals are inserted into the receiving cavity from back to front. Each conductive terminal has a box-shaped docking portion and a wire pressing portion located behind the docking portion. The docking portion is also torn to form a locking arm. The wire pressing portion is used to press the conductive area of the FPC cable, so that the conductive terminal can transmit signals with the FPC cable. The height of the docking portion in the up and down direction is higher than the height of the wire pressing portion and the conductive area in the up and down direction after being pressed and fixed to each other. Then, a plurality of terminals and the FPC cable are installed in the insulating body from back to front, so that the locking arm abuts against the inner wall of the receiving cavity, thereby preventing the terminals from withdrawing backward out of the insulating body. The wire pressing portion and the conductive area that are pressed and fixed to each other are received in the receiving cavity.

[0004] However, since the height of the docking portion is higher than the height of the wire pressing portion and the conductive area after being riveted and fixed to each other, in order to enable the conductive terminal to be installed in the insulating body from back to front, it is necessary to make the height of the receiving cavity greater than the height of the docking portion. In this way, the height of the receiving cavity is naturally greater than the height of the wire pressing portion and the conductive area after being pressed and fixed to each other. As a result, there is a large gap between the wire pressing portion and the conductive area and the upper and lower inner wall surfaces of the receiving cavity after riveting. When the electrical connector assembly shakes under external force, the wire pressing portion and the conductive area that are pressed and fixed to each other will shake up and down in the receiving cavity. In this way, looseness will occur between the wire pressing portion and the conductive area, making the contact between the wire pressing portion and the conductive area unstable, and further affecting the signal transmission performance of the electrical connector assembly.

[0005] Therefore, it is necessary to design an electrical connector assembly to solve the above technical problems.

Content of the Utility Model

[0006] The purpose of the utility model is to provide an insulating covering portion to cover the crimping portion of the fixed conductive terminal and the conductive area of the flat conductive part, so that the adjacent crimping portions in the same row are always insulated to avoid contact short circuit, and the first wall of the accommodating cavity stops the insulating covering portion from moving upward, and the third wall of the clearance space stops the insulating covering portion from moving downward, thereby preventing the insulating covering portion and the crimping portion and the conductive area covered therein from shaking up and down in the accommodating cavity and the clearance space, thereby preventing the crimping portion and the conductive area from loosening from each other in an electrical connector assembly.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] 14. The electrical connector assembly as claimed in claim 13, wherein the plurality of conductive terminals are received in the plurality of terminal slots of the insulating body, the plurality of terminal slots being arranged in at least one row in the left-right direction, the terminal slots being used for inserting conductive terminals, a limiting slot being recessed upwardly from the lower surface of the insulating body and being located behind the plurality of terminal slots, the limiting slot being connected to the plurality of terminal slots in front and back communication, at least one receiving cavity being located behind the limiting slot, the receiving cavity being connected to the plurality of terminal slots in the front-to-back direction through the limiting slot, a first wall and a second wall being respectively provided on the upper and lower sides of the receiving cavity; a limiting member being installed in the limiting slot, a clearance space being provided at the rear end of the limiting member, the clearance space being longitudinally arranged in the left-right direction, the rear end of the clearance space being connected to the receiving cavity , a third wall is provided on the lower side of the clearance space; at least one flat conductive member is electrically connected to a row of the conductive terminals, the flat conductive member has a conductive area, each of the conductive terminals has a docking portion and a crimping portion located behind the docking portion, the crimping portions of a row of the conductive terminals are crimped and fixed to the conductive area in the up-down direction, an insulating covering portion covers and fixes the conductive area and the crimping portion, the docking portion enters the terminal slot through the accommodating cavity and the clearance space, the insulating covering portion is accommodated in the accommodating cavity and its front end enters the clearance space, the limiter is located behind the docking portion to limit the backward displacement of the docking portion, the first wall stops the insulating covering portion from moving upward, the third wall is closer to the insulating covering portion than the second wall in the up-down direction, and the third wall stops the insulating covering portion from moving downward.

[0009] Furthermore, the limit member has a plurality of connecting grooves arranged in a row along the left-right direction, the front ends of a row of the connecting grooves are respectively connected with a row of the terminal grooves, and the rear ends of a row of the connecting grooves are connected with the accommodating cavity, and the limit member has an initial locking block and a final locking block on at least one side. When the limit member is installed in the limit groove and the initial locking block is fixed to be in the initial locking position, the third wall is lower than the second wall in the up and down direction, and the docking part can pass through the accommodating cavity, the make way space and the connecting groove from back to front to enter the terminal groove. When the limit member is further displaced upward until the final locking block is fixed to be in the final locking position, the third wall is higher than the second wall to prevent the insulating covering from moving downward.

[0010] Furthermore, each of the docking parts is provided with an anti-idiot portion protruding downward, and the second wall is provided with a plurality of first anti-idiot grooves recessed downward, and each of the connecting grooves is further provided with a second anti-idiot groove recessed downward and passes through the makeshift space backward, and a plurality of the second anti-idiot grooves are connected with a plurality of the first anti-idiot grooves in a one-to-one correspondence along the front-to-back direction, and when the limit piece is located in the initial locking position, the anti-idiot portion can pass through the first anti-idiot groove and the second anti-idiot groove in sequence and enter the terminal groove.

[0011] Furthermore, a locking arm is connected to the lower wall surface of each terminal slot, and a locking block is protruding from one side of the locking arm in the left-right direction, and a stop block is protruding upward from the lower wall surface of each connecting slot. The stop block and the locking arm are both located on one side of the second anti-idiot slot in the left-right direction. When the docking part is inserted into the terminal slot from back to front, the upper surface of the stop block is lower than the upper surface of the locking arm, and the locking arm can be elastically displaced in the left-right direction. When the limiting member is installed in the limiting slot and is in the final locking position, the locking block is located behind the anti-idiot part to prevent the anti-idiot part from moving backward, and the upper surface of the stop block is higher than the upper surface of the locking arm and stops at the rear of the docking part.

[0012] Furthermore, a partition is provided between two adjacent connecting grooves in the left-right direction, the partition extends backward from the front end of the limiting member and is located in front of the rear end of the limiting member, the clearance space is formed between the rear end surface of the partition and the rear end surface of the limiting member, the insulating covering extends forward beyond the front end of the conductive area in the front-to-back direction, and the clearance space provides clearance for the front end of the insulating covering.

[0013] Furthermore, the crimping portion has a plate portion and a plurality of puncture portions formed by bending and extending from the left and right sides of the plate portion, the plate portion is protruding with a plurality of convex ribs, the end of each of the puncture portions is tapered, the conductive area is provided with a plurality of conductors at intervals in the left and right directions, each of the conductors is in contact with the corresponding plurality of convex ribs of the plate portion in the up and down directions, and the plurality of puncture portions on the left and right sides of the plate portion are respectively located on the left and right sides of the corresponding conductors and puncture the conductive area.

[0014] Furthermore, the docking portion has a top wall and two side walls connected to the left and right sides of the top wall, wherein one of the side walls is bent and extended to one side of the other side wall to form a connecting wall, and the connecting wall, the top wall and the two side walls are arranged to form a docking cavity, and a main elastic plate extends from the rear end of the connecting wall, and the main elastic plate has a first inclined section connected to the rear end of the connecting wall, a flat section extends backward from the first inclined section, a second inclined section extends upward from the rear end of the flat section, and a contact section is bent and connected to the rear end of the second inclined section, and the other side wall is bent and extended to have a shielding plate, and the shielding plate shields the bottom of the flat section.

[0015] Furthermore, one side of the other side wall is bent and extended to form an extension wall, which is located behind the shielding plate and extends forward and upward from the front end of the extension wall to form a secondary spring sheet, the number of bending times of the secondary spring sheet is less than the number of bending times of the main spring sheet, and the secondary spring sheet is used to upwardly support the lower surface of the abutting section.

[0016] Furthermore, the plurality of terminal slots are arranged in two rows along the left-right direction, the crimping parts of the two rows of conductive terminals are respectively crimped with the conductive areas of the two flat conductive parts, the accommodating cavity has two insulating covering parts respectively used to accommodate the two flat conductive parts, a partition plate is provided between the two accommodating cavities, the lower surface of the partition plate is the first wall, the other side of the clearance space relative to the third wall in the up-down direction has a limiting wall, the third wall is used to stop the insulating covering part located below from moving downward, the limiting wall is used to stop the insulating covering part located above from moving downward, and the upper wall surface of the accommodating cavity located above stops the insulating covering part located above from moving upward.

[0017] Furthermore, the upper surface of the insulating body is provided with two buckling arms spaced apart from each other in the left-right direction, the front ends of the two buckling arms are connected to the front surface of the insulating body, the rear ends of the two buckling arms are connected to each other as a whole and are free ends, and a notch is recessed on the upper surface of the insulating body corresponding to the rear ends of the two buckling arms, and the notch is connected with the accommodating cavity in the up-down direction.

[0018] Furthermore, the top surface of the insulating body is provided with two first upper positioning ribs located on the left and right sides of the two latching arms, and two second upper positioning ribs located outside the two first upper positioning ribs. The left and right side walls of the insulating body are respectively provided with a side positioning rib, and the side positioning rib is connected to the lower end of the second upper positioning rib. The two first upper positioning ribs, the two second upper positioning ribs and the two side positioning ribs are respectively used to cooperate with multiple limiting grooves of a docking connector for limiting.

[0019] Compared with the prior art, the electrical connector assembly designed by the utility model has the following beneficial effects:

[0020] The insulating body in the utility model is provided with the limiting groove located at the rear of the accommodating cavity, the limiting member is installed in the limiting groove of the insulating body, and the limiting member has the making way space. When the crimping portion of the conductive terminal is crimped and fixed with the conductive area of the flat conductive member in the up and down directions, the insulating covering portion covers and fixes the conductive area and the crimping portion. In this way, the insulating covering portion can not only make the crimping portion and the conductive area more stably contact and conduct with each other, but also avoid the situation where two adjacent conductive terminals in a row are offset due to shaking, resulting in a short circuit between the two. When the conductive terminals and the flat conductive member that are connected to each other are installed on the insulating body, since the docking portion is accommodated in the terminal groove, the limiting member is located at the rear of the docking portion to limit the backward displacement of the docking portion, which can avoid the conductive terminal from withdrawing backward from the insulating body The camming element is then moved back and forth between the first and second walls of the accommodating cavity, so that the camming element is moved back and forth between the first and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the first and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls, so that the camming element is moved back and forth between the second and second walls,

Brief Description of the Drawings

[0021] Figure 1 It is a three-dimensional assembly schematic diagram of the electrical connector assembly of the utility model;

[0022] Figure 2Exploded perspective view of the electrical connector assembly of the present utility model from one perspective;

[0023] Figure 3 Exploded perspective view of the electrical connector assembly of the present utility model from another perspective;

[0024] Figure 4 Schematic diagram of the insulating body and the limiting member of the electrical connector assembly of the present utility model;

[0025] Figure 5 Stereoscopic schematic diagram of the conductive terminals of the electrical connector assembly of the present utility model;

[0026] Figure 6 Front view of the electrical connector assembly of the present utility model;

[0027] Figure 7 Cross-sectional view of the electrical connector assembly of the present utility model with the limiting member in the initial locking position;

[0028] Figure 8 Cross-sectional view of the electrical connector assembly of the present utility model with the limiting member in the final locking position;

[0029] Figure 9 is Figure 6 Cross-sectional view along line A-A. Explanation of the reference numerals in the specific embodiments:

[0030]

[0031]

Specific Embodiments

[0032] To better understand the content of the present utility model, the present utility model will be further described in detail below in conjunction with specific embodiments and diagrams.

[0033] As Figures 1 to 9As shown, a kind of electrical connector assembly 1000 of the present utility model is used to be docked with a docking connector. The docking connector (not shown, the same below) is welded to a circuit board (not shown, the same below) and has a docking body and a plurality of docking terminals fixed to the docking body. The electrical connector assembly 1000 of the present utility model defines a front-back direction and a left-right direction and an up-down direction perpendicular to the front-back direction; the docking direction of the electrical connector assembly 1000 and the docking connector is defined as the front-back direction. For the convenience of understanding the drawings, the front-back direction is represented by the X-axis of the 3D coordinate, where the forward direction is the positive direction of the X-axis, the left-right direction is represented by the Y-axis of the 3D coordinate, where the rightward direction is the positive direction of the Y-axis, and the up-down direction is represented by the Z-axis of the 3D coordinate, where the upward direction is the positive direction of the Z-axis. For the convenience of description, the up-down, left-right, and front-back orientations in the present utility model are relative positions and do not constitute a limitation on implementation.

[0034] As Figures 1 to 9 shown, the electrical connector assembly 1000 includes an insulating body 1, a limiting member 2 is installed on the insulating body 1, a plurality of conductive terminals 3 are received in the insulating body 1 and arranged in two rows along the left-right direction, and the two rows of the conductive terminals 3 are limited in the insulating body 1 by the limiting member 2, two flat conductive members 4 are respectively connected to the two rows of the conductive terminals 3, and two insulating coating parts 5 respectively cover the joints of the two rows of the conductive terminals 3 and the two flat conductive members 4.

[0035] As Figure 2 、 Figure 3 、 Figure 4 and Figure 9As shown, the insulating body 1 has a plurality of terminal slots 11 opened along the front-to-back direction, and the plurality of terminal slots 11 are arranged in at least one row along the left-to-right direction. In this embodiment, the terminal slots 11 are arranged in two rows along the left-to-right direction. A locking arm 12 is connected to the lower wall surface of each terminal slot 11, and a locking block 121 is convexly provided on one side of the locking arm 12 in the left-to-right direction. When the conductive terminal 3 is inserted into the terminal slot 11 from the back to the front, the conductive terminal 3 pushes against the locking block 121 along one side in the left-to-right direction, so that the locking arm 12 can be elastically deflected in the left-to-right direction. When the conductive terminal 3 is inserted to the final position, the conductive terminal 3 no longer applies a holding force to the locking arm 12, and the locking block 121 is used to stop the conductive terminal 3 from moving backward. A limiting groove 13 is recessed upward from the lower surface of the insulating body 1, and the limiting groove 13 is located behind the plurality of terminal slots 11, and the limiting groove 13 is connected to the plurality of terminal slots 11 in the front-to-back direction. At least one receiving cavity 14 is located behind the limiting groove 13. In the present embodiment, there are two receiving cavities 14. The two receiving cavities 14 are respectively used to receive the two insulating covering parts 5, and a partition plate 141 is provided between the two receiving cavities 14 in the up-down direction. The two receiving cavities 14 in the front-to-back direction are both connected with the two rows of terminal grooves 11 through the limiting groove 13. Specifically, each receiving cavity 14 is roughly aligned with one row of the terminal grooves 11 in the front-to-back direction through the limiting groove 13 and connected to each other. Among the two receiving cavities 14, the lower receiving cavity 14 is provided with a first wall 142 and a second wall 143 on the upper and lower sides, respectively. The first wall 142 is located above the second wall 143, and the lower surface of the partition plate 141 is the first wall 142.

[0036] like Figure 3 and Figure 4 As shown, the upper surfaces of the second wall 143 and the partition plate 141 are both recessed downward to form a plurality of first fool-proof grooves 144 , which are connected to the limiting grooves 13 along the front-to-back direction, and are used to provide clearance for the conductive terminals 3 .

[0037] like Figure 2 , Figure 3 and Figure 4As shown, the upper surface of the insulating body 1 is provided with two latching arms 15 spaced from each other in the left-right direction, the front ends of the two latching arms 15 are connected to the front surface of the insulating body 1, the rear ends of the two latching arms 15 are connected to each other as a whole and are free ends, and each of the latching arms 15 is provided with a latching block 151 for latching and fixing with the docking connector. A notch 16 is provided on the upper surface of the insulating body 1 corresponding to the rear ends of the two latching arms 15, and the notch 16 is connected with the receiving cavity 14 located above in the up-down direction. The top surface of the insulating body 1 is also provided with two first upper positioning ribs 17 located on the left and right sides of the two latching arms 15, and two second upper positioning ribs 18 located outside the two first upper positioning ribs 17. The left and right side surfaces of the insulating body 1 are respectively provided with a side positioning rib 19, and the side positioning rib 19 is connected to the lower end of the second upper positioning rib 18. When the electrical connector assembly 1000 is connected to the docking connector, the two first upper positioning ribs 17, the two second upper positioning ribs 18 and the two side positioning ribs 19 are used to cooperate with the multiple limiting grooves of the docking connector one by one to limit the position, so as to guide the electrical connector assembly 1000 to be smoothly inserted into the cavity of the docking connector in the up and down directions and the left and right directions to avoid oblique insertion or wrong insertion, and in a high-speed vibration environment, it can still ensure that the electrical connector assembly 1000 is smoothly and stably electrically connected to the docking connector to avoid loosening.

[0038] like Figure 2 , Figure 3 and Figure 4 As shown, the limiting member 2 is installed in the limiting groove 13 from bottom to top, and the limiting member 2 has an initial locking position and a final locking position. A clearance space 21 is provided from the rear end of the limiting member 2, and the clearance space 21 is longitudinally arranged in the left-right direction, and the rear end of the clearance space 21 is connected to the receiving cavity 14 located below. The lower side of the clearance space 21 has a third wall 211, and the other side of the clearance space 21 relative to the third wall 211 in the up-down direction is provided with a limiting wall 212.

[0039] like Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, the stopper 2 has a plurality of connecting grooves 22 arranged in a row along the left-right direction, the front ends of the connecting grooves 22 in a row are respectively connected to the terminal grooves 11 in the lower row, and the rear ends of the connecting grooves 22 in a row are connected to the receiving chamber 14 located below. A fence 23 is provided between two adjacent connecting grooves 22 in the left-right direction, the fence 23 extends backward from the front end of the stopper 2 and is located in front of the rear end of the stopper 2, so that the clearance space 21 is formed between the rear end surface of the fence 23 and the rear end surface of the stopper 2. In the process of inserting the conductive terminals 3 in the lower row from the back to the front into the insulating body 1, the fence 23 can prevent any conductive terminal 3 in the conductive terminals 3 in the lower row from deviating toward the adjacent conductive terminal 3 in the left-right direction, so that the conductive terminals 3 in the lower row can be quickly and accurately inserted into the terminal grooves 11 in the lower row through the plurality of connecting grooves 22. Each of the connecting grooves 22 is further recessed with a second foolproof groove 24, which penetrates the clearance space 21 backwards, and the plurality of second foolproof grooves 24 recessed downwards on the connecting grooves 22 in the front-to-back direction are connected to the plurality of first foolproof grooves 144 recessed downwards on the second wall 143 in a one-to-one correspondence. The limiting wall 212 extends forward and shields the top of the connecting groove 22, and a plurality of second foolproof grooves 24 are also recessed downwards from the upper surface of the limiting wall 212, and the plurality of second foolproof grooves 24 recessed downwards on the limiting wall 212 in the front-to-back direction are connected to the plurality of first foolproof grooves 144 recessed downwards on the upper surface of the partition plate 141 in a one-to-one correspondence. A stop block 25 is protruding upward from the lower wall surface of each connecting groove 22, and a plurality of stop blocks 25 are also protruding upward from the upper surface of the limiting wall 212. In the left-right direction, each stop block 25 and the corresponding locking arm 12 are located on one side of the corresponding second anti-idiot groove 24. In other words, in the left-right direction, each stop block 25 is aligned with the corresponding locking arm 12 and both are located on one side of the corresponding second anti-idiot groove 24, that is, the stop blocks 25 and the second anti-idiot groove 24 are alternately arranged in the left-right direction. At least one side of the limit member 2 along the left and right directions has an initial locking block 26 and a final locking block 27. In the present embodiment, an initial locking block 26 and a final locking block 27 are respectively provided on the left and right side surfaces of the limit member 2, and the initial locking block 26 and the final locking block 27 are spaced apart along the upper and lower sides. The initial locking block 26 is located above the final locking block 27, and the initial locking block 26 and the final locking block 27 are each snapped with the inner side wall of the limit groove in stages, so that the limit member 2 can be fixed to the insulating body 1 in the initial locking position or fixed to the insulating body 1 in the final position.

[0040] like Figure 1 , Figure 2 ,Figure 3 and Figure 6 As shown in Figure 6 , two rows of the conductive terminals 3 are arranged opposite to each other in the up and down direction, and the arrangement directions of the two rows of the conductive terminals 3 are the same, so that only one of the limiting members 2 can limit the conductive terminals 3 in the upper and lower two rows. Each of the conductive terminals 3 has a docking portion 31, a connecting portion 32 connected to the rear of the docking portion 31, and a crimping portion 33 connected to the rear of the connecting portion 32.

[0041] As Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown in Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8 , each of the docking portions 31 is square, and the docking portion 31 has a top wall 311 and two side walls 312 connected to the left and right sides of the top wall 311. One of the side walls 312 is bent and extended with a connecting wall 313 toward one side of the other side wall 312, and the other side wall 312 is bent and extended with an extending wall 314. The connecting wall 313, the top wall 311 and the two side walls 312 enclose a docking cavity 315 for inserting and docking the docking terminal. A main elastic piece 316 extends from the rear end of the connecting wall 313. The main elastic piece 316 has a first inclined section 3161 connected to the rear end of the connecting wall 313, a flat section 3162 extending backward from the first inclined section 3161, a second inclined section 3163 extending upward and backward from the rear end of the flat section 3162, and an abutting section 3164 bent and connected to the rear end of the second inclined section 3163. The upper surface of the abutting section 3164 is used to abut against the docking terminal upward. The other side wall 312 is also bent and extended with a shielding plate 317, and the shielding plate 317 shields the lower part of the flat section 3162. The extending wall 314 is located behind the shielding plate 317, and a secondary elastic piece 318 is formed by extending forward and upward from the front end of the extending wall 314. The number of bends of the secondary elastic piece 318 is less than that of the main elastic piece 316, and the secondary elastic piece 318 is used to abut against the lower surface of the abutting section 3164 upward. Specifically, in this embodiment, the secondary elastic piece 318 directly extends upward and forward from the front end of the extending wall 314 with a third inclined section 3181 and a holding section 3182 connected to the front end of the third inclined section 3181. The holding section 3182 is used to abut against the lower surface of the abutting section 3164. Each of the docking portions 31 is convex downward with an anti-misinsertion portion 319. The anti-misinsertion portion 319 extends downward from the other side wall 312 and is folded upward to the lower part of the connecting wall 313. The anti-misinsertion portions 319 of the two rows of the conductive terminals 3 in the up and down direction all extend downward, and the anti-misinsertion portion 319 is used to prevent the conductive terminal 3 from being misinserted into the insulating body 1.

[0042] As Figure 5 、 Figure 7 and Figure 8 shown, the connecting portion 32 has a bridging wall 321 and two stopping portions 322 bent downward from the left and right sides of the bridging wall 321. Along the vertical direction, the lower ends of the stopping portions 322 are higher than the lower ends of the side walls 312 of the docking portion 31 for the stopping block 25 to stop and abut against, thereby restricting the downward displacement of the conductive terminal 3.

[0043] As Figure 2 、 Figure 3 、 Figure 5 shown, the crimping portion 33 has a plate portion 331 and a plurality of piercing portions 332 bent and extended from the left and right sides of the plate portion 331. The plate portion 331 is convexly provided with a plurality of ribs 3311 for abutting against the flat conductive member 4. The end of each piercing portion 322 is tapered, that is, each piercing portion 332 is tapered toward the side away from the connection between the plate portion 331 and the piercing portion 332, that is, the end of each piercing portion 332 is constricted. The piercing portion 332 is used to pierce the flat conductive member 4 in the vertical direction and is finally crimped and fixed to the flat conductive member 4.

[0044] As Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown, in this embodiment, the flat conductive member 4 is a flat cable (of course, in other embodiments, the flat conductive member 4 can also be a flexible circuit board). The two flat conductive members 4 are electrically connected to the two rows of conductive terminals 3 respectively, and each flat conductive member 4 has a conductive area 41 at the front end, and the crimping portions 33 of the two rows of conductive terminals 3 are crimped to the conductive areas 41 of the two flat conductive members 4 respectively, and each conductive area 41 is composed of a plurality of conductive bodies 411 and an insulating layer (not numbered, the same below) separating the plurality of conductive bodies 411, and the plurality of conductive bodies 411 correspond to the plurality of crimping portions 33 of a row of conductive terminals 3. When the crimping portions 33 of a row of the conductive terminals 3 are crimped and fixed to the conductive area 41 of a flat conductive part 4 in the up-down direction, each of the conductors 411 and the corresponding plurality of ribs 3311 of the plate portion 331 abut against each other in the up-down direction, and the plurality of piercing portions 332 on the left and right sides of the plate portion 331 are respectively located on the left and right sides of the corresponding conductors 411 and pierce the insulating layer of the conductive area 41. After the piercing portions 332 pierce the conductive area 41, the crimping portion 33 is crimped to the conductive area 41 of the flat conductive part 4 by a riveting device (not shown, the same below), so that the tips of the piercing portions 332 on the left and right sides of the plate portion 331 are close to each other and riveted to the flat conductive part 4.

[0045] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the two insulating covering portions 5 respectively cover and fix the conductive areas 41 of the two flat conductive parts 4 and the crimping portions 33 of the two rows of conductive terminals 3. In the front-to-back direction, each insulating covering portion 5 extends forward beyond the front end of the conductive area 41 of the corresponding flat conductive part 4, and the clearance space 21 provides clearance for the front end of the insulating covering portion 5.

[0046] like Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, before the conductive terminal 3 is inserted into the insulating body 1 from the back to the front, the crimping parts 33 of a row of the conductive terminals 3 are first crimped with the conductor 411 of one of the flat conductive parts 4, and one of the insulating covering parts 5 covers the crimping parts 33 and the conductive area 41 that are crimped to each other. When the limiting member 2 is installed in the limiting groove 13 and the initial locking block 26 is clamped by the inner side wall of the limiting groove 13 of the insulating body 1 to be in the initial locking position, the third wall 211 is lower than the second wall 143 in the up-down direction, and the upper surface of the stop block 25 is lower than the upper surface of the locking arm 12. The upper surface of the limiting wall 212 is lower than the upper surface of the partition plate 141, and the lower surface of the limiting wall 212 is higher than the first wall 142. That is, the upper and lower surfaces of the limiting wall 212 in the up-down direction do not exceed the upper and lower surfaces of the partition plate 141, so as to prevent the limiting wall 212 from blocking the insertion of the conductive terminal 3. Along the front-to-back direction, each row of the first fool-proof grooves 144 is aligned with the corresponding second fool-proof grooves 24 and are connected to each other, so that the docking portion 31 of the conductive terminal 3 in the lower row can enter the terminal groove 11 in the lower row from back to front through the accommodating cavity 14, the clearance space 21 and the connecting groove 22 located below, and the fool-proof portion 319 of the conductive terminal 3 in the lower row can also pass through the first fool-proof groove 144 formed by the downward recess of the second wall 143 and the second fool-proof groove 24 formed by the downward recess of the connecting groove 22 in sequence to enter the terminal groove 11 in the lower row. The docking portion 31 of the upper row of the conductive terminal 3 can pass through the receiving cavity 14 located above, and can pass over the limiting member 2 from above the limiting wall 212 to enter the lower row of the terminal slot 11, and the foolproof portion 319 of the upper row of the conductive terminal 3 can sequentially pass through the first foolproof groove 144 formed by the upper surface of the partition plate 141 and the second foolproof groove 24 formed by the upper surface of the limiting wall 212 to enter the upper row of the terminal slot 11. During the process of the docking portion 31 being inserted into the terminal slot 11 from back to front, the foolproof portion 319 pushes against the locking block 121 in the left-right direction, so that the locking arm 12 can be elastically deflected in the left-right direction.

[0047] like Figure 2 , Figure 3 , Figure 4 and Figure 8As shown, when the limiter 2 is further displaced upward until the final locking block 27 is locked by the inner wall of the limiter groove 13 to be in the final locking position, the initial locking block 26 is unlocked, the docking portion 31 is received in the terminal groove 11, and the insulating covering portion 5 is received in the receiving cavity 14 and its front end enters the clearance space 21. The locking block 121 is located behind the foolproof portion 319 to prevent the foolproof portion 319 from moving backward. The upper surface of the stopper block 25 of the limiter 2 is higher than the upper surface of the corresponding locking arm 12 and is located behind the docking portion 31 to prevent the conductive terminal 3 from withdrawing backward from the insulating body 1. The stopper block 25 of the limiter 2 is also located below the stopper 322 of the corresponding conductive terminal 3 to prevent the conductive terminal 3 from moving downward. The first wall 142 is used to prevent the insulating covering portion 5 located below from moving upward. The third wall 211 is higher than the second wall 143 to stop the insulating covering part 5 located below from moving downward, that is, the third wall 211 is closer to the lower surface of the insulating covering part 5 located below than the second wall 143 in the up-down direction, and the third wall 211 stops the insulating covering part 5 located below from moving downward. The upper wall surface of the receiving cavity 14 located above in the up-down direction stops the insulating covering part 5 located above from moving upward, and the upper surface of the limiting wall 212 is higher than the upper surface of the partition plate 141, so that the upper surface of the limiting wall 212 can be used to stop the insulating covering part located above from moving downward.

[0048] In summary, the electrical connector assembly 1000 of the present invention has the following beneficial effects:

[0049] (1) The insulating body 1 is provided with the limiting groove 13 located behind the receiving cavity 14, the limiting member 2 is installed in the limiting groove 13 of the insulating body 1, and the limiting member 2 has the clearance space 21. When the crimping portion 33 of the conductive terminal 3 is crimped and fixed with the conductive area 41 of the flat conductive member 4 in the up and down direction, the insulating covering portion 5 is covered and fixed with the conductive area 41 and the crimping portion 33. In this way, the insulating covering portion 5 can not only make the crimping portion 33 and the conductive area 41 be fixed, but also can make the insulating covering portion 5 be fixed with the conductive area 41 and the crimping portion 33. 41 can be in contact and conduct with each other more stably, and can also avoid the situation that two adjacent conductive terminals 3 in a row are shaken and offset, resulting in a short circuit between the two. When the conductive terminals 3 and the flat conductive member 4 that are in contact with each other are installed on the insulating body 1, since the docking portion 31 is accommodated in the terminal slot 11 of the conductive terminal 3, the limit member 2 is located behind the docking portion 31 to limit the backward displacement of the docking portion 31, which can prevent the conductive terminal 3 from withdrawing backward from the insulating body 1, thereby allowing the conductive terminal 3 to be stably connected to the docking conductive terminal 3; and since the insulating covering portion 5 is accommodated in the accommodating cavity 14 and its front end enters the clearance space 21, the first wall 142 of the accommodating cavity 14 blocks the insulating covering portion 5 from moving upward, and the third wall 211 of the clearance space 21 in the up-down direction is closer to the insulating covering portion 5 than the second wall 143 of the accommodating cavity 14, and the third wall 211 blocks the insulating covering portion 5 from moving downward, so that the insulating covering portion 5 in the up-down direction is The covering portion 5 is stopped and limited, and at the same time, the crimping portion 33 and the conductive area 41 enclosed in the insulating covering portion 5 will not loosen in the up and down directions. In this way, when the electrical connector assembly 1000 is shaken by external force, the insulating covering portion 5 and the crimping portion 33 and the conductive area 41 enclosed therein will not shake up and down in the accommodating cavity 14 and the clearance space 21, thereby preventing the crimping portion 33 and the conductive area 41 from loosening from each other, thereby improving the signal transmission stability of the electrical connector assembly 1000.

[0050] (2) When the limiting member 2 is installed in the limiting groove 13 and the initial locking block 26 is fixed so that the limiting member 2 is in the initial locking position, the third wall 211 is lower than the second wall 143 in the up-down direction, and the docking portion 31 can pass through the receiving cavity 14, the clearance space 21 and the connecting groove 22 from back to front to enter the terminal groove 11, so as to prevent the conductive terminal 3 from being deflected and collided during the insertion process. When the limiting member 2 is further moved upward until the final locking block 27 is fixed so that the limiting member 2 is in the final locking position, the third wall 211 is higher than the second wall 14 3, used to stop the insulating covering portion 5 from moving downward; in this way, when the limit member 2 is in the initial locking position, the limit member 2 will not affect the insertion of the conductive terminal 3 and the flat conductive member 4, so that the two can be smoothly inserted into the insulating body 1, and when the limit member 2 is in the final locking position, the third wall 211 of the limit member 2 can limit the insulating covering portion 5, thereby preventing the crimping portion 33 and the conductive area 41 from loosening from each other when the electrical connector assembly 1000 is subjected to external shaking or high-speed vibration, thereby affecting the signal transmission performance of the electrical connector assembly 1000.

[0051] (3) The crimping portion 33 comprises the plate portion 331 and a plurality of piercing portions 332 extending from the left and right sides of the plate portion 331, wherein the end of each piercing portion 332 is tapered, so that the piercing portion 332 is inverted cone shape, thereby facilitating the piercing portion 332 to pierce the insulating layer of the conductive area 41; the plate portion 331 is provided with a plurality of convex ribs 3311, and each of the conductors 411 of the conductive area 41 is connected to the corresponding convex ribs 3311 of the plate portion 331 in the up-down direction. They abut against each other, so that the setting of the rib 3311 can increase the contact area between the conductive terminal 3 and the conductor 411, so that the signal transmission between the conductive terminal 3 and the cable is more stable; the multiple piercing portions 332 on the left and right sides of the plate portion 331 are respectively located on the left and right sides of the corresponding conductor 411 and pierce the conductive area 41, avoiding the piercing portion 332 directly piercing the conductor 411, which causes the conductor 411 to be deformed or offset and cannot be stably connected with the conductive terminal 3.

[0052] (4) The main elastic piece 316 has a first inclined section 3161 connected to the rear end of the connecting wall 313. A flat section 3162 extends backward from the first inclined section 3161. A second inclined section 3163 extends upward and obliquely from the rear end of the flat section 3162. And an abutting section 3164 is bent and connected to the rear end of the second inclined section 3163. In this way, the setting of the flat section 3162 can make the inclination angle of the main elastic piece 316 in the docking cavity 315 relatively gentle. Moreover, the settings of the first inclined section 3161 and the flat section 3162 disperse the stress of the main elastic piece 316 concentrated at the connection between the main elastic piece 316 and the connecting wall 313. And because the main elastic piece 316 is provided with the flat section 3162, and the shielding plate 317 also shields below the flat section 3162. Therefore, when the docking terminal is inserted into the docking cavity 315, the abutting force arm of the main elastic piece 316 against the docking terminal is only the length of the second inclined section 3163. This shortens the abutting force arm of the main elastic piece 316, and then enables the main elastic piece 316 to have sufficient abutting force to abut against the docking terminal. Moreover, the setting of the flat section 3162 can also reduce the size of the conductive terminal 3 in the up and down directions, reduce the product space of the electrical connector assembly 1000, and facilitate the realization of the thin and light of the product.

[0053] (5) The number of bends of the auxiliary elastic piece 318 is less than that of the main elastic piece 316. And the auxiliary elastic piece 318 is used to abut against the lower surface of the abutting section 3164 upward. In this way, reducing the number of bends of the auxiliary elastic piece 318 can reduce the height size of the conductive terminal 3 in the up and down directions, which is convenient for realizing the thin and light of the electrical connector assembly 1000. Moreover, the setting of the auxiliary elastic piece 318 can also make the main elastic piece 316 receive a large abutting force from the auxiliary elastic piece 318, and then enable the main elastic piece 316 to have sufficient forward force to stably dock with the docking terminal.

[0054] (6) The third wall 211 is used to block the downward displacement of the insulating coating part 5 located below. The limiting wall 212 is used to block the downward displacement of the insulating coating part 5 located above. And the upper wall surface of the receiving cavity 14 located above blocks the upward displacement of the insulating coating part 5 located above. In this way, only by setting one limiting member 2 can the crimping parts 33 of the upper and lower rows of conductive terminals 3 and the conductive areas 41 of the two flat conductive parts 4 be limited and abutted up and down. Compared with the need to separately set two limiting members 2 to separately block and limit the crimping parts 33 of the upper and lower rows of conductive terminals 3 and the conductive areas 41 of the two flat conductive parts 4, the manufacturing cost is saved.

[0055] On the upper surface of the insulating body (1), there are two clamping arms (15). The front ends of the two clamping arms (15) are both connected to the front surface of the insulating body (1). The rear ends of the two clamping arms (15) are connected to each other as a whole and are free ends. Thus, compared with only having one clamping arm (15) with a larger size, setting two clamping arms (15) with smaller sizes can increase the elasticity of the clamping arms (15). Moreover, since the front sides of the two clamping arms (15) are spaced apart in the left-right direction and their rear ends are connected as a whole, when the electrical connector assembly (1000) is docked with the docking connector, the docking connector is provided with a protruding structure extending between the two clamping arms (15). The setting of the protruding structure can limit the left and right positions of the two clamping arms (15), preventing the two clamping arms (15) from shaking left and right, and further preventing the clamping arms (15) from being skewed during insertion. The setting of the notch (16) can provide a space for the clamping arms (15), enabling the clamping arms (15) to have enough space to bounce downward to release the clamping with the docking connector.

[0056] The above detailed description is only an illustration of the preferred embodiments of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the content of this creative specification and the drawings are included in the patent scope of this creation.

Claims

1. An electrical connector assembly, characterized in that, Comprising: An insulating body has a plurality of terminal slots formed therethrough in the front-rear direction. A plurality of conductive terminals are received in the plurality of terminal slots of the insulating body. The plurality of terminal slots are arranged in at least one row in the left-right direction for the plurality of conductive terminals to be inserted therein. A limiting slot is recessed upward from the lower surface of the insulating body behind the plurality of terminal slots. The limiting slot communicates with the plurality of terminal slots in the front-rear direction. At least one receiving cavity is located behind the limiting slot. In the front-rear direction, the receiving cavity communicates with the plurality of terminal slots through the limiting slot. A first wall and a second wall are respectively provided on the upper and lower sides of the receiving cavity; A limiting member is installed in the limiting slot. A yielding space is provided at the rear end of the limiting member. The yielding space is longitudinally extended in the left-right direction. The rear end of the yielding space communicates with the receiving cavity. A third wall is provided on the lower side of the yielding space; At least one flat conductive member is electrically connected to a row of the conductive terminals. The flat conductive member has a conductive region. Each of the conductive terminals has a docking portion and a crimping portion located behind the docking portion. The crimping portions of a row of the conductive terminals are crimped and fixed to the conductive region in the up-down direction. An insulating covering portion covers and fixes the conductive region and the crimping portion. The docking portion enters the terminal slot through the receiving cavity and the yielding space. The insulating covering portion is received in the receiving cavity and its front end enters the yielding space. The limiting member is located behind the docking portion to limit the backward displacement of the docking portion. The first wall blocks the upward displacement of the insulating covering portion. In the up-down direction, the third wall is closer to the insulating covering portion than the second wall. The third wall blocks the downward displacement of the insulating covering portion.

2. The electrical connector assembly according to claim 1, wherein: The limiting member has a plurality of communication slots arranged in a row in the left-right direction. The front ends of a row of the communication slots respectively communicate with a row of the terminal slots, and the rear ends of a row of the communication slots communicate with the receiving cavity. At least one side of the limiting member has a preliminary locking block and a final locking block. When the limiting member is installed in the limiting slot and the preliminary locking block is clamped to be in the preliminary locking position, in the up-down direction, the third wall is lower than the second wall. The docking portion can pass through the receiving cavity, the yielding space and the communication slots from back to front and enter the terminal slot. When the limiting member is further displaced upward until the final locking block is clamped to be in the final locking position, the third wall is higher than the second wall to block the downward displacement of the insulating covering portion.

3. The electrical connector assembly according to claim 2, wherein: Each of the docking portions protrudes downward with an anti-fooling portion. The second wall is recessed downward with a plurality of first anti-fooling grooves. Each of the communication slots is further recessed downward with a second anti-fooling groove that penetrates backward through the yielding space. In the front-rear direction, the plurality of second anti-fooling grooves are in one-to-one correspondence and communicate with the plurality of first anti-fooling grooves. When the limiting member is in the preliminary locking position, the anti-fooling portion can sequentially pass through the first anti-fooling groove and the second anti-fooling groove and enter the terminal slot.

4. The electrical connector assembly according to claim 3, wherein: A locking arm is connected to the lower wall surface of each terminal slot, and a locking block is protruding from one side of the locking arm in the left-right direction. A stop block is protruding upward from the lower wall surface of each connecting slot. The stop block and the locking arm are both located on one side of the second fool-proof slot in the left-right direction. When the docking part is inserted into the terminal slot from back to front, the upper surface of the stop block is lower than the upper surface of the locking arm, and the locking arm can be elastically displaced in the left-right direction. When the limiting member is installed in the limiting slot and is in the final locking position, the locking block is located behind the fool-proof part to prevent the fool-proof part from moving backward. The upper surface of the stop block is higher than the upper surface of the locking arm and stops at the rear of the docking part.

5. The electrical connector assembly according to claim 2, wherein: A partition is provided between two adjacent connecting grooves in the left-right direction, the partition extends backward from the front end of the limiting member and is located in front of the rear end of the limiting member, the clearance space is formed between the rear end surface of the partition and the rear end surface of the limiting member, the insulating covering extends forward beyond the front end of the conductive area in the front-to-back direction, and the clearance space provides clearance for the front end of the insulating covering.

6. The electrical connector assembly according to claim 1, wherein: The crimping portion comprises a plate portion and a plurality of puncturing portions formed by bending and extending from the left and right sides of the plate portion, the plate portion is provided with a plurality of convex ribs, the end of each puncturing portion is tapered, a plurality of conductors are provided at intervals in the left and right directions of the conductive area, each of the conductors is in contact with the corresponding plurality of convex ribs of the plate portion in the up and down directions, and the plurality of puncturing portions on the left and right sides of the plate portion are respectively located on the left and right sides of the corresponding conductors and puncture the conductive area.

7. The electrical connector assembly according to claim 1, wherein: The docking portion has a top wall and two side walls connected to the left and right sides of the top wall, wherein one of the side walls is bent and extended to form a connecting wall toward one side of the other side wall, and the connecting wall, the top wall and the two side walls are arranged to form a docking cavity, and a main elastic sheet extends from the rear end of the connecting wall, and the main elastic sheet has a first inclined section connected to the rear end of the connecting wall, a flat section extends backward from the first inclined section, a second inclined section extends upward from the rear end of the flat section, and a contact section is bent and connected to the rear end of the second inclined section, and the other side wall is bent and extended to have a shielding plate, and the shielding plate shields the bottom of the flat section.

8. The electrical connector assembly according to claim 7, wherein: An extension wall is bent and extended from one side of the other side wall, and the extension wall is located behind the shielding plate, and extends forward and upward from the front end of the extension wall to form a secondary spring sheet, the number of bending times of the secondary spring sheet is less than the number of bending times of the main spring sheet, and the secondary spring sheet is used to upwardly support the lower surface of the abutting section.

9. The electrical connector assembly according to claim 1, wherein: The plurality of terminal slots are arranged in two rows along the left-right direction, the crimping parts of the two rows of conductive terminals are respectively crimped with the conductive areas of the two flat conductive parts, the receiving cavity has two insulating covering parts respectively used to receive the two flat conductive parts, a partition plate is provided between the two receiving cavities, the lower surface of the partition plate is the first wall, the other side of the clearance space relative to the third wall along the up-down direction has a limiting wall, the third wall is used to stop the insulating covering part located below from moving downward, the limiting wall is used to stop the insulating covering part located above from moving downward, and the upper wall surface of the receiving cavity located above stops the insulating covering part located above from moving upward.

10. The electrical connector assembly according to claim 1, wherein: The upper surface of the insulating body is provided with two buckling arms spaced from each other in the left-right direction, the front ends of the two buckling arms are connected to the front surface of the insulating body, the rear ends of the two buckling arms are connected to each other as a whole and are free ends, and a notch is concavely provided on the upper surface of the insulating body corresponding to the rear ends of the two buckling arms, and the notch is connected with the accommodating cavity in the up-down direction.

11. The electrical connector assembly according to claim 10, wherein: The top surface of the insulating body is provided with two first upper positioning ribs located on the left and right sides of the two latching arms, and two second upper positioning ribs located outside the two first upper positioning ribs. The left and right side walls of the insulating body are respectively provided with a side positioning rib, and the side positioning rib is connected to the lower end of the second upper positioning rib. The two first upper positioning ribs, the two second upper positioning ribs and the two side positioning ribs are respectively used to cooperate with multiple limiting grooves of a docking connector to limit the position.

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