Conductive terminal and connector assembly

Abstract

A conductive terminal comprises a plugging part and a clamping part which is formed by extending backwards from the plugging part and used for clamping a cable, and the plugging part comprises a bottom wall, a top wall, two side walls connecting the bottom wall and the top wall and a matching space defined by the bottom wall, the top wall and the side walls. The front end of the top wall is bent and extends backwards to form a limiting convex part, and the front end of one side wall is bent and extends towards the inside of the matching space to form a contact elastic arm. The contact elastic arm comprises a connecting part formed by bending inwards from the front end of the side wall, a first inclined arm formed by obliquely extending from the connecting part to the rear lower part, a second inclined arm formed by obliquely extending from the first inclined arm to the rear upper part, and a contact part formed at the bending part of the first inclined arm and the second inclined arm; the bottom wall is punched upwards to form a plurality of lower contacts protruding into the matching space. The utility model further discloses a connector assembly.

Description

Technical Field

[0001] The present application relates to the field of electrical connections, and in particular to a conductive terminal and connector assembly. Background Art

[0002] Automotive connectors are required to maintain stable electrical connection performance even in bumpy and unstable operating environments. Typically, automotive connectors use female terminals with a strong elastic arm structure and male terminals with pins to ensure connection stability.

[0003] For example, Patent Application No. 202322647593.8 of the People's Republic of China discloses a high-current terminal (i.e., a female terminal) for use in vehicles. The terminal comprises a plug-in portion that electrically contacts the pin terminal of a mating connector and a clamping portion that connects to a cable. The plug-in portion is formed by winding a sheet material to form a mating space for the pin terminal of the mating connector to be inserted into, and a contact unit is formed by bending from the bottom wall and the front end of the top wall of the mating space to extend into the mating space. The contact unit comprises two symmetrically arranged sets of elastic arm units. The two sets of elastic arm units include a plurality of terminal elastic arms and anti-deformation protrusions located on the outer sides of the deformed terminal elastic arms. The two sets of elastic arm units clamp the pin terminal of the mating connector on both sides of the symmetrical sides to maintain stable contact. The female terminal is installed in the insulating body, and the insulating body includes a terminal slot that passes through the front and back. When the female terminal is inserted into the terminal slot from the back to the front, the female terminal needs to be snapped into the terminal slot of the insulating body. In this way, an outer wall is also attached to the top wall of the matching space. The outer wall is torn to form a locking elastomer extending obliquely to the rear and upper side. A locking slot that passes through the front is provided at the front end of the terminal slot. The locking elastomer is elastically snapped into the locking slot and locked to buffer the front and rear plugging and unplugging forces during plugging and unplugging.

[0004] The female terminal is generally made of copper alloy to improve the current carrying capacity, but the elastic force is weak, and the locking elastic body is only a spring formed by tearing a plate and extending obliquely backward. The spring has low strength and can be easily broken when subjected to force, causing the conductive terminal to be easily pulled out. Utility Model Content

[0005] In view of this, it is necessary to provide a conductive terminal and connector assembly with good locking performance and stable contact.

[0006] In order to solve the above technical problems, the present application provides a conductive terminal, including a plug-in portion and a clamping portion extending backward from the plug-in portion for clamping a cable, the plug-in portion including a bottom wall, a top wall, two side walls connecting the bottom wall and the top wall, and a matching space surrounded by the bottom wall, the top wall and the side walls, the front end of the top wall is bent backward and extended to form a limited position protrusion, the front end of one of the side walls is bent toward the matching space and extended to form a contact elastic arm, the contact elastic arm includes a connecting portion bent inward from the front end of the side wall, a first inclined arm extending obliquely rearward and downward from the connecting portion, a second inclined arm extending obliquely rearward and upward from the first inclined arm, and a contact portion formed at the bending point of the first inclined arm and the second inclined arm, and the bottom wall is stamped upward to form a plurality of lower contacts protruding into the matching space.

[0007] Preferably, the limiting protrusion includes a base formed by bending and extending in the reverse direction from the front end portion of the top wall, an extension sheet formed by bending and extending upward from a lateral side of the base, and a reinforcing rib stamped at the bending point between the base and the extension sheet.

[0008] Preferably, the rear portion of the laterally outer side of the base is bent downward and extended to form a reinforcement plate, the outer side of the reinforcement plate is flush with the side wall, the rear end of the reinforcement plate abuts against the side wall or the top wall, and the front end of the reinforcement plate abuts against the bottom wall.

[0009] Preferably, the contact elastic arm is formed by bending inward from the top of the front end of the side wall to the matching space.

[0010] Preferably, the top wall and the top end of the side wall are riveted together to form a riveted portion, and a locked groove is formed between the plug-in portion and the clamping portion. The locked groove is a step-like structure formed by cutting away part of the material on the rear side of the plug-in portion.

[0011] In order to solve the above technical problems, the present application also provides a connector assembly, including the aforementioned conductive terminals and an insulating shell, the insulating shell is formed with a plurality of terminal slots and positioning slots located above the terminal slots through the front and back, the positioning slots include a through slot through the front and back and a locking elastomer extending on one side of the through slot, the locking elastomer includes a main body portion extending from the through slot to form a suspension, a thickened portion extending forward from the main body portion and gradually widening toward one side of the through slot, and a card slot formed at the front end edge of the thickened portion, the limiting protrusion is inserted into the through slot and squeezes the locking elastomer away from one side of the through slot to deform, and after the limiting protrusion passes over the thickened portion, the thickened portion elastically returns to bear against the rear side of the limiting protrusion to limit the position.

[0012] Preferably, the locking elastomer also includes a front convex portion extending forward from the front end of the thickened portion away from the side of the through slot, and the front convex portion has an inclined surface structure; the slot is located on one side of the front convex portion, and the locking elastomer forms a deformation gap on the side away from the through slot.

[0013] Preferably, the limiting protrusion includes a base formed by bending and extending in the reverse direction from the front end part of the top wall, an extension sheet formed by bending and extending upward from a lateral side of the base, and a reinforcing rib stamped at the bending point between the base and the extension sheet, and the limiting protrusion is limited to the card slot by the extension sheet.

[0014] Preferably, a locked groove is formed between the plug-in portion of the conductive terminal and the clamping portion, the insulating shell includes an insulating body and a positioning locking block, the insulating body is cut out to form a locking groove corresponding to the locked groove, the locked groove of the conductive terminal is exposed in the locking groove, the terminal groove includes an upper terminal groove and a lower terminal groove arranged side by side in the vertical direction, and the positioning groove includes an upper positioning groove formed through the upper terminal groove and a lower positioning groove formed between the upper terminal groove and the lower terminal groove.

[0015] Preferably, the positioning locking block includes an upper limit portion inserted into the upper terminal slot, a lower limit portion inserted into the lower terminal slot, a lower insertion slot located below the lower limit portion, and an upper insertion slot located between the lower limit portion and the upper limit portion, and the lower limit portion and the upper limit portion are connected as a whole on both sides of the horizontal direction; after the positioning locking block is partially inserted into the locking slot, the conductive terminal is inserted into the terminal slot through the lower insertion slot and the upper insertion slot, and then the positioning locking block is pressed downward, and the upper limit portion and the lower limit portion are respectively inserted into the locked slots of the conductive terminals in the upper terminal slot and the lower terminal slot.

[0016] The conductive terminal of the connector assembly of this application is formed by bending and extending the top wall of the plug portion upward to form a stopper protrusion on the top wall. The stopper protrusion locks into the locking groove of the locking elastic body within the positioning groove of the insulating body. Compared with the existing barbed locking springs formed by tearing, the stopper protrusion has greater strength and better locking stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Example 1

[0019] Figure 1A three-dimensional diagram of the conductive terminal according to the first embodiment of the present application;

[0020] Figure 2 A three-dimensional view of the conductive terminal of the first embodiment of the present application from another angle;

[0021] Figure 3 For the Figure 1 A cross-sectional view taken along the dashed line AA shown;

[0022] Figure 4 A perspective view of a connector assembly according to a first embodiment of the present application;

[0023] Figure 5 For the Figure 4 A cross-sectional view taken along the dashed line BB shown;

[0024] Figure 6 For the Figure 4 A cross-sectional view taken along the dashed line CC shown;

[0025] Example 2

[0026] Figure 7 A three-dimensional diagram of a conductive terminal according to a second embodiment of the present application;

[0027] Figure 8 A three-dimensional view of the conductive terminal of the second embodiment of the present application from another angle;

[0028] Figure 9 For the Figure 7 A cross-sectional view taken along the dashed line DD is shown.

[0029] Description of Reference Numerals

[0030] Conductive terminal 10; plug-in portion 11; bottom wall 111; side wall 112; first side wall 1121; second side wall 1122; clamping protrusion 1123; rivet portion 1124; top wall 113; rear top wall 1131; front top wall 1132; mating space S; clamping portion 12; core wire clamping portion 121; outer layer clamping portion 122; contact spring arm 13; first inclined arm 131; contact portion 132; second inclined arm 133; lower contact 134; connecting portion 135; locked groove 14; support arm 15; limiting protrusion 16; base 161; bending portion 162; extension piece 163; separation groove 1 64; reinforcing rib-165; reinforcing sheet-166; insulating shell-30; insulating body-31; positioning lock block-32; terminal slot-33; front plug-in port-332; limiting front wall-333; positioning slot-34; through slot-341; locking elastic body-342; main body-343; thickened portion-344; card slot-345; front protrusion-346; deformation gap-347; locking slot-36; positioning lock block-32; upper limit portion-321; lower limit portion-322; upper insertion slot-323; lower insertion slot-324; first thin wall-325; locking portion-327; upper terminal slot-301; lower terminal slot-302; upper positioning slot 303; lower positioning slot-304. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of this application more clear, the technical solutions of this application will be described clearly and completely below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them.

[0032] This application is based on Figure 1 The X direction is the front of the front-back direction, the Y direction is the lateral direction, and the Z direction is the upward vertical direction.

[0033] Example 1

[0034] See also Figures 1 to 3 As shown, the conductive terminal 10 of the first embodiment of the present application includes an inserting portion 11 at the front end, a clamping portion 12 extending rearward from the inserting portion 11, and a locking groove 14 formed between the inserting portion 11 and the clamping portion 12. The inserting portion 11 includes a bottom wall 111, a top wall 113 located above the bottom wall 111, two side walls 112 connecting the bottom wall 111 and the top wall 113, and a mating space S enclosed by the bottom wall 111, the top wall 113, and the two side walls 112.

[0035] The sidewalls 112 include a first sidewall 1121 and a second sidewall 1122. Each of the first sidewall 1121 and the second sidewall 1122 has a clamping protrusion 1123 punched into the mating space S. The top wall 113 includes a first top wall 1131 folded from the top of the first sidewall 1121 and a second top wall 1132 folded from the top of the second sidewall 1122. A rivet 1124 is provided at the top of the first sidewall 1121 on one side of the second top wall 1132 for riveting to the second top wall 1132.

[0036] The front end portion of the second top wall 1132 is torn and bent upward to form a limiting protrusion 16 and a contact spring arm 13 extending from the limiting protrusion 16 to the matching space S. The limiting protrusion 16 includes a base 161 formed by bending upward from one side of the second top wall 1132, an extension sheet 163 formed by bending in the opposite direction from the top end of the base 161, and a bent portion 162 formed at the bend. The limiting protrusion 16 extends upward beyond the surface of the top wall 113 and is located on one lateral side of the plug-in portion 11. The middle of the extension sheet 163 is torn to form a separation groove 164. The bottom of the extension sheet 163 located in front of the separation groove 164 is bent inward to form the contact spring arm 13 extending into the matching space S.

[0037] The contact spring arm 13 includes a connecting portion 135 that is bent from the extension piece 163 into the mating space S, a first inclined arm 131 that is bent and extended obliquely downward and rearward from the connecting portion 135, a second inclined arm 133 that is bent and extended obliquely upward and rearward from the end of the first inclined arm 131, and a contact portion 132 formed at the bend between the first inclined arm 131 and the second inclined arm 133. The rear side of the second side wall 1122 is folded inward to form a support arm 15 located below the first top wall 1131. The support arm 15 extends above the second inclined arm 133 of the contact spring arm 13 and is used to abut against the second inclined arm 133. The bottom wall 111 is punched inwardly to form a lower contact 134 corresponding to the lower side of the contact portion 132. The lower contact 134 preferably includes two front and rear contacts. The contact portion 132 is located within the two lower contacts, that is, the contact portion 132 can vary within the range from above the first lower contact 134 to above the second lower contact 134.

[0038] In one embodiment, the support arm 15 may be eliminated, and the second inclined arm 133 of the contact elastic arm 13 may continue to extend backward and upward and abut against the top wall 113 .

[0039] The clamping portion 12 includes a core clamping portion 121 extending rearward from the bottom wall 111 and side walls 112 of the plug-in portion 11, an outer cladding clamping portion 122 extending rearward from the core clamping portion 121, and a latching slot 14 formed between the core clamping portion 121 and the plug-in portion 11. The latching slot 14 is a stepped structure formed by cutting downwardly from the rear side of the plug-in portion 11, and the conductive terminal 10 can be locked by snapping downwardly into the stepped structure. The core clamping portion 121 and the outer cladding clamping portion 122 are conventional and will not be described in detail here.

[0040] The conductive terminal 10 of the present application is formed by bending and extending upward at the front end of the top wall 113 of the plug-in part 11 to form a limiting protrusion 16, and then extending through the limiting protrusion 16 to form a contact spring arm in the matching space S. Compared with the tearing barb-like structure used in the prior art to lock the conductive terminal 10, the limiting protrusion 16 has a more stable and reliable structure.

[0041] Please continue reading Figures 4 to 6 As shown, the connector assembly of the present application includes an insulating housing 30 and a plurality of conductive terminals 10 inserted into the insulating housing 30. The insulating housing 30 includes an insulating body 31 having a plurality of terminal slots 33 and positioning slots 34 formed therethrough, and a positioning lock block 32 inserted into the insulating body 31 to lock the conductive terminals A.

[0042] The insulating body 31 is formed with a plurality of terminal slots 33 and positioning slots 34 extending through the front-to-back direction. The terminal slots 33 are arranged in two vertical rows, comprising a set of upper terminal slots 301 and a set of lower terminal slots 302, with the upper terminal slots 301 and lower terminal slots 302 corresponding to each other. The front end of each terminal slot 33 is provided with a front insertion opening 332 for inserting the pins of the mating connector. A retaining front wall 333 is formed around the periphery of the front insertion opening 332 of the terminal slot 33 to partially block the terminal slot 33. The conductive terminal 10 is inserted into the terminal slot 33 from the rear, with the front edge of the plug portion 11 being retained behind the retaining front wall 333.

[0043] A set of positioning grooves 34 is formed correspondingly above each set of terminal grooves 33. Figure 5As shown, the positioning slot 34 includes a through slot 341 extending from front to back, and a latching elastic body 342 extending forward from the inner wall of the through slot 341. The latching elastic body 342 includes a main body 343 extending forward in a suspended state, a thickened portion 344 that gradually widens from the main body 343 toward the through slot 341, a latching groove 345 formed at the front end of the thickened portion 344 near the through slot 341, and a forward protrusion 346 extending forward from the thickened portion 344 away from the through slot 341. The main body 343 and the thickened portion 344 form a smooth, curved surface facing the through slot 341, allowing the limiting protrusion 16 to pass unrestricted to the front of the positioning slot 34. The forward protrusion 346 is designed as an inclined surface near the through slot 341, and a deformable gap 347 is formed between the latching elastic body 342 and the sidewall away from the through slot 341.

[0044] The conductive terminal 10 is inserted into the terminal slot 33 from the rear of the insulating body 31, and the plug-in portion 11 is inserted forward into the terminal slot 33. The limiting protrusion 16 is inserted from the through-slot 341 of the positioning slot 34, pressing the locking elastic body 342, passing over the locking elastic body 342, and finally partially engaging the locking slot 345 to prevent the conductive terminal 10 from falling out backward. When the conductive terminal 10 is to be removed, a special tool can be inserted from the front end of the positioning slot 34 and press the locking elastic body 342 to one side, causing the locking elastic body 342 to deform away from the through-slot 341, thereby freeing the limiting protrusion 16 from the restriction of the locking slot 345 and smoothly removing the conductive terminal 10.

[0045] The top surface of the insulating body 31 defines a locking slot 36 for inserting the positioning locking block 32. The latched slot 14 of the conductive terminal 10 is exposed within the locking slot 36. The locking slot 36 extends through the upper terminal slot 301 and the lower terminal slot 302. The positioning locking block 32 includes a lower stopper 322 inserted into the lower terminal slot 302, an upper stopper 321 integrally connected to the lower stopper 322 on both sides and inserted into the upper terminal slot 301, a lower insertion slot 324 formed below the lower stopper 322, and an upper insertion slot 324 formed between the lower stopper 322 and the upper stopper 321. The upper and lower stopper 321 gradually become thinner from front to back, including a first thin wall 325 at the rear end and a latching portion 327 at the front end. The bottom surface of the first thin wall 325 is higher than the bottom surface of the latching portion 327. Furthermore, the junction between the first thin wall 325 and the locking portion 327 is a smooth inclined surface structure.

[0046] The clamping portion 12 of the conductive terminal 10 of the present application is riveted to the cable and then inserted into the terminal slot 33. Specifically, the core clamping portion 121 of the clamping portion 12 is riveted to fix the core of the cable and conduct it, and the outer sheath clamping portion 122 is riveted to fix the outer sheath of the cable. This is a conventional technology and will not be described in detail here.

[0047] First, partially insert the positioning lock block 32 into the lock groove 36. When the conductive terminal 10 is inserted into the terminal groove 33 from the rear end, the plug-in portion 11 can be inserted under the first thin wall 325 without hindrance. Continue to push forward and lift the positioning lock block 32 upward. After continuing to push forward, the plug-in portion 11 will eventually lift the locking portion 327 and eventually pass over the front end of the locking portion 327.

[0048] Of course, in one embodiment, the insertion of the positioning lock block 32 is divided into two stages. In the unlocked state, a first-order blocking position is set, that is, the upper limit portion 321 and the lower limit portion 322 avoid the upper terminal groove 301 and the lower terminal groove 302. After the conductive terminal 10 is inserted into the upper terminal groove 301 and the lower terminal groove 302, the positioning lock block 32 is completely inserted into the locking groove 36. At this time, the locking portion 327 of the upper limit portion 321 and the lower limit portion is inserted into the locked groove 14 of the conductive terminal 10 to lock the conductive terminal 10 for a second time.

[0049] The plug pin of the docking connector is inserted from the front socket 332 at the front end of the insulating housing 30 , and the upper and lower sides of the plug pin are clamped and connected by the contact portion 132 of the contact spring arm 13 and the lower contact 134 , while the lateral sides of the plug pin are limited by the clamping protrusions 1123 on the side wall 112 .

[0050] Example 2

[0051] Please continue reading Figures 7 to 9 As shown, compared with the conductive terminal of the first embodiment, the conductive terminal 10 of the second embodiment is different in that:

[0052] The limiting protrusion 16 is formed by reverse bending from the front end of the second top wall 1132, and the contact spring arm 13 is formed by bending from the front side of one of the side walls 112 to extend into the matching space S. Specifically, the limiting protrusion 16 includes a base 161 formed by reverse bending from the lateral side of the front end of the second top wall 1132, a bent portion 162 formed at the bend between the base 161 and the second top wall 1132, and an extension piece 163 formed by bending upward from the lateral side of the base 161. To strengthen the strength of the limiting protrusion 16, an outwardly protruding reinforcing rib 165 is stamped and formed at the bend between the extension piece 163 and the base 161. The number of the reinforcing ribs 165 is not less than two. The rear end of the lateral outer side of the base 161 of the limiting protrusion 16 is bent downward to form a reinforcing piece 166 that abuts against the rear side wall 112 or top wall 113.

[0053] The contact spring arm 13 is formed by bending from the front end of the first side wall 1121 into the mating space S and then extending backward. The contact spring arm 13 includes a connecting portion 135 formed by bending from the first side wall 112 into the mating space S, a first inclined arm 131 extending backward and downward from the connecting portion 135, a second inclined arm 133 formed by bending from the first inclined arm 131 and extending obliquely backward and upward, and a contact portion 132 formed at the bend between the first inclined arm 131 and the second inclined arm 133. The end of the second inclined arm 133 is folded to form a support end 136 supported on the top wall 113. The support end 136 abuts against the top wall 113 to provide elastic force for the contact portion 132. The connecting portion 135 abuts against the front end of the reinforcing plate 166 to strengthen the strength of the limiting protrusion 16.

[0054] The insulating body 31 and positioning lock block 32 of the insulating housing 30 are substantially identical to those of the first embodiment. When the connector pin is inserted into the mating space S, the lower surface of the pin abuts against the lower contact 134, the upper surface of the pin abuts below the contact portion 132 of the contact spring arm 13, and the supporting end 136 abuts against the top wall 113 to provide elastic force. The lateral sides of the pin are abutted or connected by the clamping protrusions 1123 on the side wall 112.

[0055] The top wall 113 in the second embodiment is entirely bent from the second side wall 1122 , and the top wall 113 is bent downward on one side of the first side wall 1121 and riveted to the first side wall 1121 to form a riveted portion 1124 .

[0056] The conductive terminal 10 of the connector assembly of the present application is formed by bending and extending the top wall 113 of the plug portion 11 upward to form a limiting protrusion 16 protruding from the top wall 113. The limiting protrusion 16 is locked to the locking groove 345 of the locking elastic body 342 in the positioning groove 34 of the insulating body 31. Compared with the existing barbed locking spring formed by tearing, the limiting protrusion 16 has greater strength and better locking stability.

[0057] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments merely represent preferred implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A conductive terminal comprising a plug-in portion and a clamping portion extending rearward from the plug-in portion for clamping a cable, wherein the plug-in portion comprises a bottom wall, a top wall, two side walls connecting the bottom wall and the top wall, and a mating space enclosed by the bottom wall, the top wall, and the side walls, characterized in that: The front end of the top wall is bent backward and extended to form a limited position protrusion, and the front end of one of the side walls is bent toward the matching space and extended to form a contact elastic arm, and the contact elastic arm includes a connecting portion formed by bending inward from the front end of the side wall, a first inclined arm extending obliquely backward and downward from the connecting portion, a second inclined arm extending obliquely backward and upward from the first inclined arm, and a contact portion formed at the bending point of the first inclined arm and the second inclined arm, and the bottom wall is stamped upward to form a plurality of lower contacts protruding into the matching space.

2. The conductive terminal according to claim 1, wherein: The limiting protrusion includes a base formed by bending and extending in the reverse direction from the front end of the top wall, an extension sheet formed by bending and extending upward from a lateral side of the base, and a reinforcing rib stamped at the bending point between the base and the extension sheet.

3. The conductive terminal according to claim 2, wherein: The rear portion of the laterally outer side of the base is bent downward and extended to form a reinforcement sheet, the outer side of the reinforcement sheet is flush with the side wall, the rear end of the reinforcement sheet abuts against the side wall or the top wall, and the front end of the reinforcement sheet abuts against the bottom wall.

4. The conductive terminal according to claim 3, wherein: The contact elastic arm is formed by bending inward from the top of the front end of the side wall to the matching space.

5. The conductive terminal according to claim 4, wherein: The top wall and the top end of the side wall are riveted together to form a riveted portion, and a locked groove is formed between the plug-in portion and the clamping portion. The locked groove is a step-like structure formed by cutting away part of the material at the rear side of the plug-in portion.

6. A connector assembly, characterized in that: It comprises several conductive terminals and an insulating shell as described in claim 1, wherein the insulating shell is formed with several terminal grooves and positioning grooves located above the terminal grooves through the front and back, the positioning grooves include a through groove through the front and back and a locking elastic body extending on one side of the through groove, the locking elastic body includes a main body portion formed by floating extension from the through groove, a thickened portion extending forward from the main body portion and gradually widening toward one side of the through groove, and a card groove formed at the front end edge of the thickened portion, the limiting protrusion is inserted into the through groove and squeezes the locking elastic body away from one side of the through groove to deform, and after the limiting protrusion passes over the thickened portion, the thickened portion elastically recovers and presses against the rear side of the limiting protrusion to limit the position.

7. The connector assembly according to claim 6, wherein: The locking elastomer also includes a front convex portion extending forward from the front end of the thickened portion away from the side of the through slot, and the front convex portion has an inclined surface structure; the slot is located on one side of the front convex portion, and the locking elastomer forms a deformation gap on the side away from the through slot.

8. The connector assembly according to claim 7, wherein: The limiting protrusion includes a base formed by bending in the reverse direction and extending from the front end portion of the top wall, an extension sheet formed by bending upward and extending from a lateral side of the base, and a reinforcing rib stamped at the bending point between the base and the extension sheet. The limiting protrusion is limited to the card slot by the extension sheet.

9. The connector assembly according to claim 6, wherein: A locked groove is formed between the plug-in portion and the clamping portion of the conductive terminal, the insulating shell includes an insulating body and a positioning locking block, the insulating body is cut out to form a locking groove corresponding to the locked groove, the locked groove of the conductive terminal is exposed in the locking groove, the terminal groove includes an upper terminal groove and a lower terminal groove arranged side by side in the vertical direction, and the positioning groove includes an upper positioning groove formed above the upper terminal groove and a lower positioning groove formed between the upper terminal groove and the lower terminal groove.

10. The connector assembly according to claim 9, wherein: The positioning locking block includes an upper limit portion inserted into the upper terminal slot, a lower limit portion inserted into the lower terminal slot, a lower insertion slot located below the lower limit portion, and an upper insertion slot located between the lower limit portion and the upper limit portion, and the lower limit portion and the upper limit portion are connected as a whole on both sides of the horizontal direction; after the positioning locking block is partially inserted into the locking slot, the conductive terminal is inserted into the terminal slot through the lower insertion slot and the upper insertion slot, and then the positioning locking block is pressed downward, and the upper limit portion and the lower limit portion are respectively inserted into the locked slots of the conductive terminals in the upper terminal slot and the lower terminal slot.

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