Compact large-current connector
By designing a compact high-current connector, the problems of large size and easy misoperation of traditional connectors are solved. It achieves stable high current carrying capacity in a very small volume, enhances the connector's mating reliability and anti-misoperation capability, and is suitable for high-power equipment.
Patent Information
- Application Number
- CN202511541748.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-02-06
AI Technical Summary
Traditional high-current connectors are bulky and prone to mis-locking, mis-insertion, reverse insertion, or warping after mating, affecting connection stability and safety, especially in high-power applications where they lack sufficient protection against misoperation and mechanical stability.
A compact high-current connector was designed, which adopts a male and female terminal plugging structure. By setting a boss and a locking hole on the male core and a locking hook on the female terminal, the retaining force is enhanced by the interlocking of the ribs in the locking hole and the locking mouth of the boss. A pressing plate structure is set at the root of the locking hook to prevent collapse or fatigue fracture. At the same time, an asymmetrical anti-reverse insertion interface and locking mechanism are adopted to ensure a unique correct insertion method.
It can stably carry up to 120A of current in a very small volume, prevent connection breakage, improve plug-in life and reliability, and ensure the continuity and safety of high power transmission. It is suitable for high power transmission scenarios such as electric vehicles and industrial equipment.
Smart Images
Figure CN121484550A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electrical connectors, and is especially suitable for a connector structure with high current carrying capacity, small size and high reliability in high-power equipment. BACKGROUND
[0002] With the development of electronic devices towards high power and miniaturization, higher requirements are put forward for the current carrying capacity, size and reliability of connectors. The traditional large current connector is large in size, and is prone to mislocking, misinsertion, reverse insertion or warping after insertion, which affects the stability and safety of connection. Especially in high-power application scenarios such as electric vehicles and industrial equipment, the anti-misoperation and mechanical stability of the connector are particularly important.
[0003] Therefore, it is necessary to provide a new technical scheme. SUMMARY
[0004] The present application provides a compact large current connector, which aims to solve the problems of large size, insecure insertion and easy misoperation of existing connectors.
[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: A compact large current connector, comprising a male terminal and a female terminal inserted into each other, The male terminal comprises a male rubber core and two first connecting terminals arranged in the male rubber core, and a boss structure protruding from the surrounding plane is arranged on the side edge of the insertion end of the male rubber core, and a clamping hole is arranged in the middle of the boss; The female terminal comprises a female rubber core matched with the male rubber core and two second connecting terminals arranged in the female rubber core and matched with the first connecting terminals, and a clamping hook is arranged on the side surface of the female rubber core corresponding to the clamping hole, which is suspended and extends outward along the insertion direction, When the male rubber core and the female rubber core are inserted, the clamping hook is clamped into the clamping hole to complete the locking of the male terminal and the female terminal.
[0006] Further, the clamping hook comprises a flat plate part connected to one end of the female rubber core and a protruding part arranged at the other end of the flat plate part, The flat plate part is in the shape of a straight plate, the top of the flat plate part is not higher than the surrounding plane of the female rubber core, and the flat plate part extends from the outside to the inside of the insertion surface of the female rubber core, The protruding part is arranged on the upper surface of the end part of the flat plate part on the inside of the insertion surface, the protruding part is clamped into the clamping hole, and the top of the protruding part is lower than the top of the boss.
[0007] Further, the upper surface of the flat plate part outside the insertion surface is also provided with a plurality of parallel semicircular pressing plates, the top of the pressing plate is higher than the surrounding plane of the female rubber core, when the male terminal is inserted into the female terminal, the pressing plate is pressed to separate the hook and the card hole, the female rubber core below the flat plate part is provided with a pressing groove for facilitating the up and down movement of the flat plate part.
[0008] Further, the bottom of the boss is provided with a raised first sliding table between the inner edge of the card hole and the insertion surface of the male rubber core, the contact surface of the first sliding table and the raised part is matched and matched with the inclined slope surface, which facilitates the insertion of the raised part into the card hole along the first sliding table; The card hole is provided with a rib along the insertion direction, the rib separates the card hole into two parts, the raised part is provided with a card hole corresponding to the position of the rib, and the rib is inserted into the card hole to enhance the holding force during insertion.
[0009] Further, the female rubber core is provided with two second connection holes inward from the insertion surface along the insertion direction, the second connection hole is provided with a second connection terminal, the outer top of one end of the two second connection holes is arc-shaped, and the bottom is right-angled, which prevents reverse insertion; The male rubber core is provided with two first connection holes outward from the insertion surface along the insertion surface, the first connection hole is provided with a first connection terminal, the first connection holes are isolated by a card plate, the edges of the first connection holes are formed on both sides of the card plate, the top and bottom of the card plate are arc-shaped and right-angled respectively matched with the second connection hole, and the middle of the card plate is a vertical plate.
[0010] Further, the bottom of the boss is provided with a rectangular notch for inserting the hook, the outer side of the notch extends to the edge of the boss, the two sides of the notch extend to the two sides of the boss, and the bottom of the notch extends to the upper part of the card plate, The notch hollows out the edge of the first connection hole directly below the boss to form a rectangular notch for the up and down movement of the hook, The upper part of the card plate forms a Y-shaped structure under the limitation of the notch, the top of the Y-shaped structure is arc-shaped on both sides of the first connection hole edge, and the bottom of the Y-shaped structure is right-angled and can accommodate the arc diameter of the first connection hole.
[0011] Further, it also includes a locking mechanism for locking the first connecting terminal or the second connecting terminal, the middle of the first connecting terminal or the second connecting terminal is provided with a stepped surface, and the large end of the first connecting terminal or the second connecting terminal is close to the insertion end, The locking mechanism includes an end cover, a first clamping jaw extending outward from the edge of the end cover, a second clamping jaw, and a third clamping jaw fixed to the inner side of the end cover, the end cover is fixed to the other end of the male rubber core or the female rubber core relative to the insertion end through the first clamping jaw and the second clamping jaw, the end cover is provided with a through hole matched with the first connecting hole or the second connecting hole for passing through the first connecting terminal or the second connecting terminal, at least two third clamping jaws are arranged at the edge of each through hole, and the tips of the third clamping jaws abut against the stepped surface of the first connecting terminal or the second connecting terminal.
[0012] Further, the third clamping jaw is provided with three and its root is circumferentially and uniformly fixed to the edge of the through hole, the tip of the third clamping jaw is elastically contracted inward, the inner diameter of the tip of the third clamping jaw is smaller than the outer diameter of the small end of the first connecting terminal or the second connecting terminal, the tip of the third clamping jaw is tightly attached to the outside of the small end of the first connecting terminal or the second connecting terminal and abuts against the stepped surface.
[0013] Further, the first clamping jaw and the second clamping jaw are respectively arranged in pairs on the edge of the end cover, The first clamping jaw is arranged in the middle of the top and the bottom of the male rubber core or the female rubber core, the tip of the first clamping jaw is provided with a second sliding table with opposite protrusions, the male rubber core or the female rubber core is sequentially provided with a first clamping groove and a second clamping groove capable of being clamped with the second sliding table in the insertion direction, The first clamping jaw is first clamped with the first clamping groove to pre-tighten the end cover, and after the first connecting terminal or the second connecting terminal is completely inserted into the male rubber core or the female rubber core, the first clamping jaw is continuously pushed into the second clamping groove to tightly clamp and fix the end cover, The contact surfaces of the first clamping groove, the second clamping groove, and the second sliding table are all provided as matching and abutting inclined surfaces, so as to facilitate the sliding of the second sliding table into the first clamping groove and the second clamping groove, The second clamping jaw is arranged on the two sides of the male rubber core or the female rubber core, the second clamping jaw is provided with a third clamping groove, the male rubber core or the female rubber core is provided with a third sliding table capable of being clamped with the third clamping groove, and the contact surfaces of the third sliding table and the third clamping groove are provided as matching and abutting inclined surfaces, When the first clamping jaw is clamped with the first clamping groove, the second clamping jaw is not in contact with the third sliding table, and when the first clamping jaw is clamped with the second clamping groove, the third sliding table is clamped and fixed with the third clamping groove, After the male core and the female core are inserted, the first clamping jaw and the second clamping jaw are flush with the surrounding plane.
[0014] Further, the maximum length, width and height of the connector after insertion are 59.2mm, 27mm and 15.3mm respectively, wherein the protruding height of the boss area is 1.3mm, and the error range of all dimensions is ±0.3mm.
[0015] The present application has the following beneficial effects: 1. Maximum current transmission in an extremely compact volume: The present application controls the connector size to a minimum range (59.2mm × 27mm × 15.3mm) through highly optimized internal layout and structural design, and can stably carry a large current of up to 120A, maximizing the current transmission capacity per unit volume, and perfectly solving the harsh requirements of high-power devices for "small volume and large current" of the connector.
[0016] 2. Enhanced anti-misunderstanding locking structure for large current scenarios: In a compact space, the reliability of connector insertion is crucial. The ribs in the clamping hole and the clamping hole on the protrusion are mutually clamped, forming a holding force beyond the conventional lock, effectively preventing the connection from being disconnected due to vibration or accidental touch in large current applications, ensuring the continuity and safety of high-power transmission.
[0017] 3. Compression-resistant structure designed for high plugging life: Considering that large current connectors need to be frequently maintained and plugged, a pressing plate structure is provided at the root of the female core clamping hook. This structure significantly enhances the mechanical strength of the cantilever clamping hook, preventing it from collapsing or fatigue fracture under long-term pressing, thereby greatly improving the plugging life and reliability of the connector during its life cycle.
[0018] 4. Comprehensive anti-misoperation mechanism ensures connection safety: The asymmetric anti-reverse insertion interface is integrated, ensuring that the insertion can only be done in the correct way in a compact space, fundamentally ensuring the stability and low resistance of the large current connection point.
[0019] 5. Universality and high reliability for large wire diameter cables: The structural design of the present application is compatible with large wire diameter cables such as 5AWG / 6AWG, and its locking mechanism can firmly fix the terminal and cable, ensuring the connection reliability of the large current flow path, and is widely applicable to various high-power transmission scenarios such as electric vehicles, industrial equipment and energy storage systems.
[0020] Additional aspects and advantages of the present application will be partially given in the following description, partially will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.
[0022] Figure 1 is a structure schematic diagram of the connector male terminal and the female terminal combined with the cable; Figure 2 is a structure schematic diagram of the connector male terminal and the female terminal; Figure 3 is Figure 2 is a structure schematic diagram of the connector female terminal in the embodiment; Figure 4 is Figure 3 is a structure schematic diagram of the end cover and the second connecting terminal in the embodiment; Figure 5 is Figure 3 is a structure schematic diagram of the end cover in the embodiment; Figure 6 is Figure 3 is a structure schematic diagram of the female terminal after removing the end cover in the embodiment; Figure 7 is Figure 2 is a structure schematic diagram of the connector male terminal in the embodiment; Figure 8 is Figure 7 is a structure schematic diagram of the male terminal from another perspective.
[0023] The reference signs are: male terminal 10, male rubber core 11, first connecting terminal 12, clamping plate 14, first connecting hole 13, boss 111, clamping hole 112, first sliding table 113, rib 114; female terminal 20, female rubber core 21, second connecting terminal 22, clamping hook 23, flat plate part 231, protruding part 232, pressing plate 233, pressing groove 234, second connecting hole 24; locking mechanism 30, end cover 31, first clamping jaw 32, second clamping jaw 33, third clamping jaw 34, second sliding table 321, first clamping groove 322 and second clamping groove 323, third clamping groove 331, third sliding table 332. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments.
[0025] The present embodiment provides a compact high-current connector, which refers toFigures 1 to 8 The male terminal 10 and the female terminal 20 are electrically connected by insertion. The male terminal 10 comprises a male core 11 and two first connecting terminals 12 arranged in the male core 11. The male core 11 is provided with a convex structure 111 protruding from the surrounding plane at the side edge of the insertion end. The convex structure 111 is provided with a clamping hole 112 in the middle. The female terminal 20 comprises a female core 21 matched with the male core 11 and two second connecting terminals 22 arranged in the female core 21 and matched with the first connecting terminals 12. The female core 21 is provided with a clamping hook 23 protruding outward along the insertion direction at the side corresponding to the clamping hole 112. When the male core 11 is inserted into the female core 21, the clamping hook 23 is clamped into the clamping hole 112 to complete the locking of the male terminal 10 and the female terminal 20. The clamping hook in the present application is separately arranged on the side of the female core. Compared with the previous complex connecting structure arranged at the connecting hole, the separate clamping hook in the present application is simpler to arrange, occupies less space, and does not affect the stability of the connecting hole.
[0026] In one embodiment, referring to Figure 2 and Figure 3 The clamping hook 23 comprises a flat plate part 231 connected to the female core 21 and a protruding part 232 arranged at the other end of the flat plate part 231. The flat plate part 231 is in the shape of a straight plate. The top of the flat plate part 231 is not higher than the surrounding plane of the female core 21. The flat plate part 231 extends from the outside to the inside of the insertion surface of the female core 21. The protruding part 232 is arranged on the upper surface of the end of the flat plate part 231 on the inside of the insertion surface. The protruding part 232 is clamped into the clamping hole 112. The top of the protruding part 232 is lower than the top of the convex structure 111.
[0027] Further, the upper surface of the flat plate part 231 on the outside of the insertion surface is also provided with a plurality of parallel semi-circular pressing plates 233. The top of the pressing plate 233 is higher than the surrounding plane of the female core 21. When the male terminal 10 is inserted into the female terminal 20, the clamping hook 23 and the clamping hole 112 can be separated by pressing the pressing plate 233. The pressing plate 233 increases the mechanical strength of the clamping hook, preventing it from collapsing or breaking after long-term pressing, and improving the insertion and plugging life and reliability of the connector. The female core 21 below the flat plate part 231 is provided with a pressing groove 234 for facilitating the up-and-down movement of the flat plate part. In the present application, the flat plate part 231 is below the second connecting hole, and the pressing groove 234 is arranged on the outside of the second connecting hole.
[0028] Referring to Figure 7 and Figure 8The bottom of the boss 111 is provided with a first sliding platform 113 between the inner side edge of the card hole 112 and the insertion surface of the male rubber core 11. The contact surface of the first sliding platform 113 is matched with the inclined slope surface of the protruding part 232, so that the protruding part 232 is easily inserted into the card hole 112 along the first sliding platform 113.
[0029] A rib 114 is arranged in the card hole 112 along the insertion direction. The rib 114 divides the card hole 112 into two parts. The protruding part 232 is provided with a card hole corresponding to the position of the rib 114. When inserted, the rib 114 is inserted into the card hole to enhance the holding force. The card hole of the protruding part can be designed as a structure with a wide upper part and a narrow lower part, which facilitates the entry of the rib into the card hole and clamping.
[0030] In one embodiment, referring to Figure 2 and Figure 3 The female rubber core 21 is provided with two second connection holes 24 inwardly from the insertion surface along the insertion direction. The second connection holes 24 are provided with second connection terminals 22. The outer top of one end of the two second connection holes 24 is designed as a circular arc shape, and the bottom is designed as a right angle shape, which is used to prevent reverse insertion. Of course, the top and bottom of the second connection hole can also be designed as other asymmetric structures.
[0031] In one embodiment, referring to Figure 2 and Figure 7 The male rubber core 11 is provided with two first connection holes 13 outwardly from the insertion surface along the insertion surface. The first connection holes 13 are provided with first connection terminals 12. The two first connection holes 13 are separated by a card plate 14. The two sides of the card plate 14 form the edges of the first connection holes 13. The top and bottom of the card plate 14 are designed as a circular arc shape and a right angle shape matched with the second connection hole 24. The middle of the card plate 14 is a vertical plate.
[0032] Further, referring to Figure 8 The bottom of the boss 111 is provided with a rectangular notch for the insertion of the card hook 23. The outer side edge of the notch extends to the outer side edge of the boss 111. The two side edges of the notch extend to the two side edges of the boss 111. The bottom of the notch extends to the upper part of the card plate 14. The notch hollows out the edge of the first connection hole 13 directly below the boss 111 to form a rectangular notch for the up and down movement of the card hook 23. The notch limits the horizontal and vertical directions of the card hook 23.
[0033] The upper part of the card plate 14 forms a Y-shaped structure under the limitation of the notch, the top of the Y-shaped structure is a circular arc shape on both sides of the edge of the first connecting hole 13, and the bottom of the Y-shaped structure is a right angle shape capable of accommodating the circular arc diameter of the first connecting hole 13. Such arrangement can accommodate the diameter of the first connecting terminal to the maximum, so as to ensure the maximum current under the fixed volume. For example, the male rubber core of the application can accommodate 5AWG / 6AWG large diameter cables and stably bear 120A current.
[0034] In one embodiment, referring to Figures 4 to 6 , the male rubber core 11 or the female rubber core 21 further comprises a locking mechanism 30 for locking the first connecting terminal 12 or the second connecting terminal 22, and the middle of the first connecting terminal 12 or the second connecting terminal 22 is provided with a stepped surface, and the large end of the first connecting terminal 12 or the second connecting terminal 22 is close to the insertion end.
[0035] The locking mechanism 30 comprises an end cover 31, a first clamping jaw 32 extending outward from the edge of the end cover 31, a second clamping jaw 33, and a third clamping jaw 34 fixed to the inner side of the end cover 31. The end cover 31 is fixed to the other end of the male rubber core 11 or the female rubber core 21 relative to the insertion end through the first clamping jaw 32 and the second clamping jaw 33, and the end cover 31 is provided with a through hole matched with the first connecting hole 13 or the second connecting hole 24 for passing through the first connecting terminal 12 or the second connecting terminal 22, and at least two third clamping jaws 34 are arranged at the edge of each through hole, and the tip of the third clamping jaw 34 abuts against the stepped surface of the first connecting terminal 12 or the second connecting terminal 22.
[0036] Further, the third clamping jaw 34 is provided with three and its root is circumferentially uniformly fixed to the edge of the through hole, the tip of the third clamping jaw 34 is elastically contracted inwardly, and the inner diameter of the tip of the third clamping jaw 34 is smaller than the outer diameter of the small end of the first connecting terminal 12 or the second connecting terminal 22, the tip of the third clamping jaw 34 tightly abuts against the outside of the small end of the first connecting terminal 12 or the second connecting terminal 22 and abuts against the stepped surface.
[0037] The first clamping claws 32 and the second clamping claws 33 are arranged on the edges of the end cover 31 respectively. The first clamping claws 32 are arranged on the top and bottom of the male rubber core 11 or the female rubber core 21 respectively, and the tips of the first clamping claws 32 are provided with second sliding platforms 321 protruding oppositely. The male rubber core 11 or the female rubber core 21 is sequentially provided with a first clamping groove 322 and a second clamping groove 323 capable of clamping the second sliding platforms 321 in the insertion direction. The first clamping claws 32 are clamped and fixed with the first clamping groove 322 to pre-tighten the end cover 31, and then the first clamping claws 32 are pushed into the second clamping groove 323 to clamp and fix the end cover 31 after the first connecting terminal 12 or the second connecting terminal 22 is completely inserted into the male rubber core 11 or the female rubber core 21. When the end cover is pre-tightened, the connected terminal of the connected cable can be directly inserted into the connecting hole, and then the end cover is pushed to be compressed. Compared with the previous operation of fixing the connected terminal and then crimping the cable, the operation is simpler and more convenient, and time and effort are saved. At the same time, it can effectively prevent the connected terminal from loosening or retreating, and increase the stability of the connector.
[0038] The contact surfaces of the first clamping groove 322 and the second clamping groove 323 and the second sliding platform 321 are all arranged as matching inclined surfaces, which facilitates the sliding of the second sliding platform 321 into the first clamping groove 322 and the second clamping groove 323.
[0039] The second clamping claws 33 are arranged on the two sides of the male rubber core 11 or the female rubber core 21 respectively, and the second clamping claws 33 are provided with third clamping grooves 331. The male rubber core 11 or the female rubber core 21 is provided with third sliding platforms 332 capable of clamping the third clamping grooves 331. The contact surfaces of the third sliding platforms 332 and the third clamping grooves 331 are arranged as matching inclined surfaces.
[0040] When the first clamping claws 32 are clamped with the first clamping grooves 322, the second clamping claws 33 are not in contact with the third sliding platforms 332. When the first clamping claws 32 are clamped with the second clamping grooves 323, the third sliding platforms 332 are clamped and fixed with the third clamping grooves 331. The double clamping claws fix the end cover, which is more stable.
[0041] After the male rubber core 11 and the female rubber core 21 are inserted, the first clamping claws 32 and the second clamping claws 33 are flush with the surrounding planes. After ensuring the stability of the connected terminal, the volume of the connector is minimized as much as possible.
[0042] The maximum length, width and height of the connector after insertion in the application are 59.2mm, 27mm and 15.3mm respectively, wherein the protruding height of the boss area is 1.3mm, and the error range of all dimensions is ±0.3mm. The height of the glue core main body part is only about 14mm after removing the height of the boss protrusion. Compared with other connectors of the same volume, the connector in the application can stably bear a large current of 120A. Compared with other connectors bearing a current of 120A, the volume of the connector in the application has almost been reduced to the limit.
[0043] The working principle of the application is that the cantilever-shaped clamping hook on the female glue core is locked with the clamping hole on the male glue core, the rib in the clamping hole and the notch on the clamping hook are mutually clamped to increase the holding force. At the same time, the root of the clamping hook is provided with a reinforcing rib type pressing plate structure to increase the strength of the clamping hook and prevent collapse or fracture caused by long-term pressing. The connecting holes on the male and female glue cores are provided with an asymmetric structure to prevent reverse insertion. At the same time, the rear ends of the male and female glue cores are provided with end covers, the end covers are clamped with the first clamping groove for pre-tightening, the connecting terminal of the crimped cable is directly inserted into the glue core, and then the end cover is clamped with the second clamping groove to completely lock the connecting terminal in the glue core. At the same time, the end cover is stably fixed at the end of the glue core through the first clamping jaw and the second clamping jaw.
[0044] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.
Claims
1. A compact high-current connector, comprising male and female terminals that interlock, characterized in that: The male terminal includes a male core and two first connecting terminals disposed within the male core. The male core has a boss structure protruding from the surrounding plane on one edge of its mating end, and a locking hole is provided in the middle of the boss. The female terminal includes a female core that matches the male core and two second connecting terminals that match the first connecting terminal and are disposed within the female core. The female core has a hook that extends outward in the insertion direction on the side corresponding to the locking hole. After the male core and the female core are inserted, the hook is inserted into the locking hole to lock the male terminal and the female terminal.
2. The compact high-current connector according to claim 1, characterized in that: The hook includes a flat plate portion connected to the mother core at one end and a protrusion portion disposed at the other end of the flat plate portion. The flat plate is in the shape of a straight plate, and the top of the flat plate is not higher than the surrounding plane of the mother core. The flat plate extends from the outside of the mating surface of the mother core into the inside. The protrusion is located on the upper end surface of the flat plate portion inside the mating surface. The protrusion is inserted into the locking hole, and the top height of the protrusion is lower than the top height of the boss.
3. The compact high-current connector according to claim 2, characterized in that: The upper surface of the flat plate located outside the mating surface is also provided with multiple parallel semi-circular pressing plates. The top of the pressing plates is higher than the surrounding plane of the female core. When the male terminal and the female terminal are mated, pressing the pressing plates can separate the hook from the locking hole. The mother core below the flat plate is provided with a pressing groove to facilitate the up and down movement of the flat plate.
4. The compact high-current connector according to claim 2, characterized in that: The bottom of the boss is provided with a raised first slide between the inner edge of the card hole and the mating surface of the male core. The contact surface between the first slide and the raised part is set as an inclined slope that matches and fits, so that the raised part can be inserted into the card hole along the first slide when it is inserted. A rib is provided inside the card hole along the insertion direction, and the rib divides the card hole into two parts. A locking slot is provided on the protrusion corresponding to the position of the rib. When inserted, the rib is locked into the locking slot to enhance the holding force.
5. The connector according to claim 1, characterized in that: The mother core has two second connecting holes extending inward from its mating surface along the mating direction. The second connecting holes are provided with second connecting terminals. The top of the outer side of the two adjacent ends of the two second connecting holes is rounded, and the bottom is right-angled to prevent reverse insertion. The male core has two first connecting holes extending outward from its mating surface. Each first connecting hole contains a first connecting terminal. A retaining plate separates the two first connecting holes. The two sides of the retaining plate form the edges of the first connecting holes. The top and bottom sides of the retaining plate are respectively designed to match the second connecting holes in arc and right-angle shapes. The middle of the retaining plate is a vertical plate.
6. The connector according to claim 5, characterized in that: The bottom of the boss has a rectangular notch for inserting the hook. The outer side of the notch extends to the outer edge of the boss, the two sides of the notch extend to the two sides of the boss, and the bottom of the notch extends to the upper part of the latch plate. The notch cuts out the edge of the first connecting hole directly below the boss to form a rectangular notch for the hook to move up and down. The notch limits the hook in both the horizontal and vertical directions. The upper part of the card plate forms a Y-shaped structure under the constraint of the notch. The top two sides of the Y-shaped structure are arc-shaped edges of the first connecting hole, and the bottom two sides of the Y-shaped structure are right-angled shapes that can accommodate the arc diameter of the first connecting hole.
7. The connector according to claim 1, characterized in that: It also includes a locking mechanism for locking the first or second connecting terminal, wherein the first or second connecting terminal has a stepped surface in the middle, and the larger end of the first or second connecting terminal is close to the mating end. The locking mechanism includes an end cap, a first claw extending outward from the edge of the end cap, a second claw, and a third claw fixed to the inside of the end cap. The end cap is fixed to the other end of the male or female core relative to the mating end by the first claw and the second claw. The end cap is provided with a through hole that matches the first or second connecting hole for passing through the first or second connecting terminal. At least two of the third claws are provided on the edge of each through hole, and the tips of the third claws abut against the stepped surface of the first or second connecting terminal.
8. The connector according to claim 7, characterized in that: The third claw is provided in three parts, and its root is evenly fixed to the edge of the through hole in a circumferential shape. The tip of the third claw elastically contracts inward until the inner diameter of the tip of the third claw is smaller than the outer diameter of the small end of the first connecting terminal or the second connecting terminal. The tip of the third claw is close to the outside of the small end of the first connecting terminal or the second connecting terminal and abuts against the step surface.
9. The connector according to claim 7, characterized in that: The first and second claws are respectively arranged in pairs opposite each other on the edge of the end cap. The first claws are respectively disposed at the top and bottom middle of the male or female core. The tip of the first claw is provided with a relatively protruding second slide. The male or female core is provided with a first slot and a second slot that can engage with the second slide along the insertion direction. First, push the first claw to engage with the first slot to pre-tighten the end cap. After fully inserting the first or second connecting terminal into the male or female core, continue pushing the first claw into the second slot to lock the end cap in place. The contact surfaces of the first and second card slots with the second slide are both designed as matching inclined surfaces to facilitate the sliding of the second slide into the first and second card slots. The second claws are respectively disposed on both sides of the male or female rubber core. The second claws are provided with a third slot. The male or female rubber core is provided with a third slide that can engage with the third slot. The contact surface between the third slide and the third slot is a matching inclined surface. When the first claw engages with the first slot, the second claw is not in contact with the third slide. When the first claw engages with the second slot, the third slide is engaged and fixed with the third slot. After the male and female cores are inserted, the first and second claws are flush with their surrounding planes.
10. The connector according to claim 1, characterized in that: The connector after mating has a maximum length, width, and height of 59.2mm, 27mm, and 15.3mm, respectively, with the protrusion height of the boss area being 1.3mm, and the tolerance range for all dimensions being ±0.3mm.