Conductive terminal and electrical connector

Abstract

This utility model discloses a conductive terminal and an electrical connector. The conductive terminal includes a main body and a tail. A cantilever plate extends from one side of the main body in the vertical direction. A first contact spring arm extends backward from the front end of the cantilever plate, and a second contact spring arm extends backward from the rear end of the cantilever plate. The first and second contact spring arms jointly contact the same conductive surface of the mating element, so that during the insertion of the connector, the mating element will not first impact the end of the first contact spring arm, avoiding collapse and pin failure. The cantilever plate extends the lever arm of the first and second contact spring arms. The gap fit between the cantilever plate and the wall of the terminal receiving groove allows the cantilever plate to have elastic space within the terminal receiving groove, making the lever arm of the first and second contact spring arms longer, enhancing elasticity, enabling better elastic displacement, reducing insertion and extraction forces, reducing the risk of scratching the coating on their respective surfaces, and ensuring good contact performance and reliable electrical connection.

Description

[Technical Field]

[0001] This utility model relates to conductive terminals and electrical connectors, and more particularly to conductive terminals and electrical connectors with double spring arms. [Background Technology]

[0002] Existing electrical connectors for mating with FPC (Flexible Printed Circuit) components include an insulating body and conductive terminals housed in a terminal receiving groove within the insulating body. Each conductive terminal includes a base with a front opening and a rear opening sequentially arranged in the mating direction. A first elastic arm extends forward from the rear end of the front opening, and a second elastic arm extends forward from the rear end of the rear opening. The second elastic arm extends forward in the same direction as the first elastic arm. The base is fixedly positioned within the terminal receiving groove. The design has the following drawbacks: 1) Since both the first and second elastic arms extend forward, especially the first elastic arm located at the front, the front end of the FPC connector is prone to hitting the front end of the first elastic arm during the insertion of the FPC connector into the electrical connector, causing the first elastic arm to collapse backward and resulting in a kneeling pin; 2) Since the conductive terminal adopts a double-contact structure, and the base interferes with and is fixed to the inner wall of the terminal receiving groove, and since the two frame openings on the limited length of the base are arranged sequentially in the insertion direction, the length of the two frame openings in the insertion direction is relatively short, and the elastic arms stamped out from the frame openings are also relatively short. Therefore, under the above conditions, during the insertion of the conductive terminal and the FPC connector, there is a large insertion and extraction force between the conductive terminal and the FPC connector. Under the condition of a large insertion and extraction force, the repeated insertion and extraction between the conductive terminal and the FPC connector will easily scratch the contact surfaces of the FPC connector and the elastic arm, damaging the plating on their respective surfaces, resulting in poor stability and low reliability of the connector.

[0003] Therefore, it is necessary to design a conductive terminal and an electrical connector to overcome the above problems. [Utility Model Content]

[0004] In view of the problems faced by the background technology, the purpose of this utility model is to provide a conductive terminal and an electrical connector provided with the first contact spring arm extending backward from the front end of the cantilever plate and the second contact spring arm extending backward from the rear end of the cantilever plate to extend the lever arm of the first contact spring arm and the second contact spring arm, enhance the elasticity of the first contact spring arm and the second contact spring arm, and reduce the insertion and extraction force.

[0005] To achieve the above objectives, the present invention employs the following technical means:

[0006] A conductive terminal for contacting a mating element includes:

[0007] A main body is a side-standing plate-like structure. A cantilever plate extends from one side of the main body in the vertical direction. A first contact spring arm extends backward from the front end of the cantilever plate. A second contact spring arm extends backward from the rear end of the cantilever plate. The second contact spring arm and the first contact spring arm are both located on the same side of the cantilever plate in the vertical direction. The first contact spring arm and the second contact spring arm are directly opposite each other and spaced apart. The first contact spring arm and the second contact spring arm jointly contact the same conductive surface of the docking element.

[0008] A tail section, which is located behind the main body and is used to connect to a circuit board.

[0009] Furthermore, the distance between the contact surface of the first contact spring arm and the overhang plate in the vertical direction is less than the distance between the second contact spring arm and the overhang plate in the vertical direction.

[0010] Furthermore, the first contact spring arm includes a reverse bending section connected to the front end of the overhang plate, a first bending section extending from the reverse bending section, and a first contact section extending from the first bending section. The second contact spring arm includes a second bending section connected to the rear end of the overhang plate, an inclined section extending from the second bending section, and a second contact section extending from the inclined section. The plate surface of the first contact section and the plate surface of the second contact section are in contact with the same conductive surface of the docking element.

[0011] Furthermore, the second bent section is provided with a first reinforcing rib, one end of which extends to the inclined section and the other end of which extends to the cantilever plate.

[0012] Furthermore, a transition bend is provided between the cantilever plate and the main body. The main body has a notch recessed at the rear end of the transition bend. A second reinforcing rib is protruding on the transition bend. One end of the second reinforcing rib extends to the main body, and the other end of the second reinforcing rib extends to the cantilever plate.

[0013] To achieve the above objectives, this utility model employs another technical means:

[0014] An electrical connector for mating with a mating connector having mating elements, characterized in that it comprises:

[0015] An insulating body has a rearward recessed mating cavity at its front end for insertion of the mating connector, and a plurality of terminal receiving slots at its rear end that communicate with the mating cavity.

[0016] Multiple conductive terminals are housed in multiple terminal receiving slots, each conductive terminal including a main body. A cantilever plate extends from one side of the main body in the vertical direction. The cantilever plate is clearance-fitted with the wall of the terminal receiving slot. A first contact spring arm extends from the front end of the cantilever plate and a second contact spring arm extends from the rear end of the cantilever plate. The second contact spring arm and the first contact spring arm are both located on the same side of the cantilever plate in the vertical direction. The first contact spring arm and the second contact spring arm jointly contact the same conductive surface of the mating element. The rear end of each conductive terminal has a tail that extends out of the insulating body and is used to connect to a circuit board.

[0017] Furthermore, a stop portion is provided on the wall of the terminal receiving groove, the overhang plate protrudes from one side of the main body in the left-right direction, the main body has a backstop spring, the backstop spring protrudes from the other side of the main body in the left-right direction, and the stop portion prevents the backstop spring from moving backward.

[0018] Furthermore, the plurality of terminal receiving slots include a plurality of upper receiving slots arranged in a row and a plurality of lower receiving slots arranged in a row. The overhanging plate of the conductive terminal located in the upper receiving slot and the overhanging plate of the conductive terminal located in the lower receiving slot are aligned in the vertical direction. The first contact spring arm and the second contact spring arm of the conductive terminal located in the upper receiving slot extend upward at an angle, and the first contact spring arm and the second contact spring arm of the conductive terminal located in the lower receiving slot extend downward at an angle.

[0019] Furthermore, the rear wall of the docking cavity is provided with at least one plug-in block protruding forward. The upper receiving groove extends forward from the rear end of the insulating body to the plug-in block, and the upper surface of the plug-in block has an upper strip-shaped opening to communicate with the upper receiving groove. The first contact spring arm and the second contact spring arm of the conductive terminal located in the upper receiving groove enter the docking cavity upward through the upper strip-shaped opening. The lower receiving groove extends forward from the rear end of the insulating body to the plug-in block, and the lower surface of the plug-in block has a lower strip-shaped opening to communicate with the lower receiving groove. The first contact spring arm and the second contact spring arm of the conductive terminal located in the lower receiving groove enter the docking cavity downward through the lower strip-shaped opening.

[0020] Furthermore, each of the upper and lower receiving slots is provided with a protective wall at its front end. The first contact spring arm includes a reverse bending section connected to the front end of the overhang plate, a first bending section extending from the reverse bending section, and a first contact section extending from the first bending section. The reverse bending section does not protrude from the upper or lower surface of the plug block, and the protective wall is spaced apart in front of the reverse bending section.

[0021] Compared with the prior art, this utility model has the following beneficial effects: the cantilever plate extends from one side of the main body in the vertical direction; the first contact spring arm extends backward from the front end of the cantilever plate; and the second contact spring arm extends backward from the rear end of the cantilever plate. Both the first and second contact spring arms extend backward from the cantilever plate, which not only saves material but also facilitates stamping and bending, simplifying the manufacturing process. Furthermore, since both extend backward, the mating element will not first impact the end of the first contact spring arm during the insertion of the connector from front to back, thus avoiding… To prevent collapse and pin failure, the cantilever plate extends the lever arm of the first and second contact spring arms. The clearance fit between the cantilever plate and the wall of the terminal receiving groove allows the cantilever plate to have elastic space within the terminal receiving groove, thus lengthening the lever arm of the first and second contact spring arms, enhancing elasticity, and enabling better elastic displacement. This reduces the insertion and extraction force between the conductive terminal and the mating element, facilitating user insertion and reducing the risk of scratching the surface plating of each component, ensuring that the electrical connector has good contact performance and reliable electrical connection. [Attached Image Description]

[0022] Figure 1 This is a perspective view of the electrical connector in this utility model;

[0023] Figure 2 for Figure 1 Exploded view of CEC connectors;

[0024] Figure 3 This is a cross-sectional view of the electrical connector in this utility model when it is mounted on the circuit board and inserted into the mating connector.

[0025] Figure 4 for Figure 1 Cross-sectional view along the AA direction;

[0026] Figure 5 for Figure 1 Cross-sectional view along the BB direction;

[0027] Figure 6 for Figure 1Cross-sectional view along the CC direction;

[0028] Figure 7 for Figure 6 A magnified view of part D;

[0029] Figure 8 This is a perspective view of the conductive terminal located in the upper receiving groove in this utility model;

[0030] Figure 9 This is a perspective view of the conductive terminal located in the lower receiving groove in this utility model.

[0031] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0032] Insulating body 1 docking cavity 11 Connector 12 Upper strip opening 121 Lower strip opening 122 Terminal receiving slot 13 Upper containment slot 13a Lower containment tank 13b Stop part 14 Protective wall 15 Gap 16 Conductive terminal 2 Main body 21 Transition bend 22 Second reinforcing rib 221 Overhang board 23 First contact arm 24 Reverse bending segment 241 First bend section 242 First contact segment 243 Second contact arm 25 Second bend section 251 First reinforcing rib 2511 Inclined section 252 Second contact segment 253 26 Shrapnel Connecting part 27 Tail 28 Connector 3 docking element 31 Circuit board 4

Detailed Implementation Methods

[0033] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0034] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] like Figures 1 to 3 As shown, an electrical connector 1000 is provided at its front end for insertion into a mating connector 3 having mating elements 31. In this embodiment, the mating connector 3 includes two mating elements 31 and a mating housing fixed to the mating elements 31. The mating elements are FPCs, and the same conductive surface of the mating elements 31 is the same conductive pad of the FPC. Of course, in other embodiments, the mating elements 31 can also be mating terminals, with multiple mating terminals fixed to the mating housing. The same conductive surface of the mating elements 31 is the contact surface of the same mating terminal, which is not limited here. The rear end of the electrical connector 1000 is provided for mounting on a circuit board 4, which includes an insulating body 1, multiple conductive terminals 2 housed within the insulating body 1, and a fixing piece mounted on both sides of the insulating body 1.

[0036] like Figure 1 and Figure 3As shown, the front end of the insulating body 1 is recessed into a mating cavity 11 for insertion of the mating connector 3. The rear end of the insulating body 1 is recessed into multiple terminal receiving slots 13 connected to the mating cavity 11. The rear wall of the mating cavity 11 protrudes forward from the rear surface, providing two insertion blocks 12. These two insertion blocks 12 are at the same horizontal level and spaced apart in the left-right direction. Of course, in other embodiments, only one insertion block 12 may be used; this is not a limitation. The multiple terminal receiving slots 13 include multiple upper receiving slots 13a arranged in a row and multiple lower receiving slots 13b arranged in a row. Multiple conductive terminals 2 are divided into upper and lower rows and respectively received in the multiple upper receiving slots 13a and multiple lower receiving slots 13b.

[0037] like Figures 3 to 5 As shown, multiple upper receiving slots 13a extend forward from the rear end of the insulating body 1 to the plug-in block 12. The upper surface of the plug-in block 12 has multiple upper strip-shaped openings 121, the extension direction of which is parallel to the extension direction of the upper receiving slots 13a. Each of the upper strip-shaped openings 121 corresponds to and communicates with one of the upper receiving slots 13a. Multiple lower receiving slots 13b extend forward from the rear end of the insulating body 1 to the plug-in block 12. The lower surface of the plug-in block 12 has multiple lower strip-shaped openings 122, the extension direction of which is parallel to the extension direction of the lower receiving slots 13b. Each of the lower strip-shaped openings 122 corresponds to and communicates with one of the lower receiving slots 13b. A protective wall 15 is provided at the front end of each upper receiving slot 13a and each lower receiving slot 13b. A stop portion 14 is protruding from the side wall of the terminal receiving groove 13. The stop portion 14 prevents the conductive terminal 2 from moving backward. In this embodiment, the stop portion 14 is a wedge-shaped block, and the rear end face of the wedge-shaped block is an inclined guiding surface. In the upper receiving groove 13a, the stop portion 14 protrudes from the right wall of the upper receiving groove 13a. In the lower receiving groove 13b, the stop portion 14 protrudes from the left wall of the lower receiving groove 13b, thereby causing the rear sections of the upper and lower rows of conductive terminals 2 to be staggered in the left and right direction, so as to facilitate the arrangement of the rear sections of the conductive terminals 2.

[0038] like Figure 3 , Figures 6 to 9As shown, a plurality of conductive terminals 2 are housed one-to-one in a plurality of terminal receiving slots 13, and the conductive terminals 2 are used to contact the mating element 31. Each conductive terminal 2 includes a main body 21, a connecting part 27, and a tail part 28. The connecting part 27 connects the main body 21 and the tail part 28, and the tail part 28 is located on the rear side of the main body 21 and extends out of the insulating body 1 for connection to the circuit board 4. The main body 21 is a side-standing plate-like structure. A cantilever plate 23 extends from one side of the main body 21 in the vertical direction. The cantilever plate 23 protrudes from one side of the main body 21 in the horizontal direction. The main body 21 has a retaining spring 26, which is formed by stamping from the main body 21. The retaining spring 26 protrudes from the other side of the main body 21 in the horizontal direction. Specifically, the conductive terminal 2 located in the upper receiving groove 13a has a cantilever plate 23 that extends from the lower side of the main body 21. The cantilever plate 23 of the conductive terminal 2 protrudes from the left side of the main body 21 in the horizontal direction. The retaining spring 26 is located behind the cantilever plate 23 and protrudes from the right side of the main body 21. The conductive terminal 2 is located in the lower receiving groove 13b. The extension plate 23 of the conductive terminal 2 extends from the upper side of the main body 21, and protrudes from the right side of the main body 21 in the left-right direction. The extension plate 23 is close to and parallel to the extension plate 23 of the conductive terminal 2 located in the upper receiving groove 13a. The anti-reverse spring 26 is located behind the extension plate 23 and protrudes from the left side of the main body 21. The anti-reverse spring 26 and the extension plate 23 are respectively located on opposite sides of the main body 21, so that the main body 21 can be installed close to the side wall of the terminal receiving groove 13. The anti-reverse spring 26 can better cooperate with the stop part 14 for blocking. The extension plate 23 is perpendicular to the main body 21, and the extension plate 23 is in clearance fit with the wall of the terminal receiving groove 13. The overhang plate 23 of the conductive terminal 2 located in the upper receiving groove 13a is aligned vertically with the overhang plate 23 of the conductive terminal 2 located in the lower receiving groove 13b.

[0039] like Figure 8 and Figure 9As shown, a transition bend 22 is provided between the cantilever plate 23 and the main body 21. The main body 21 has a notch 16 recessed at the rear end of the transition bend 22 to increase the elasticity of the cantilever plate 23. A second reinforcing rib 221 is protruding on the transition bend 22. One end of the second reinforcing rib 221 extends to the main body 21, and the other end of the second reinforcing rib 221 extends to the cantilever plate 23. The portion of the second reinforcing rib 221 extending in the cantilever plate 23 is perpendicular to the extension of the cantilever plate 23 in the front-back direction. Since the cantilever plate 23 can move slightly in the terminal receiving groove 13 after the docking connector 3 is inserted into the electrical connector 1000, the transition bend 22 is relatively fragile as the stress-bearing part of the cantilever plate 23. The second reinforcing rib 221 is provided here to strengthen the connection strength between the cantilever plate 23 and the main body 21.

[0040] like Figure 3 and Figure 6As shown, a first contact spring arm 24 extends backward from the front end of the cantilever plate 23, and a second contact spring arm 25 extends backward from the rear end of the cantilever plate 23. The second contact spring arm 25 and the first contact spring arm 24 are both located on the same side of the cantilever plate 23 in the vertical direction. The first contact spring arm 24 and the second contact spring arm 25 are directly opposite each other and spaced apart. The first contact spring arm 24 and the second contact spring arm 25 jointly contact the same conductive surface of the docking element 31. The conductive terminal 2 located in the upper receiving groove 13a has its first contact spring arm 24 and second contact spring arm 25 located above the overhang plate 23 and extending upward at an angle. The first contact spring arm 24 and second contact spring arm 25 enter the docking cavity 11 through the upper strip opening 121 to contact the docking element 31 located above. The conductive terminal 2 located in the lower receiving groove 13b has its first contact spring arm 24 and second contact spring arm 25 located below the overhang plate 23 and extending downward at an angle. The first contact spring arm 24 and second contact spring arm 25 enter the docking cavity 11 through the lower strip opening 122 to contact the docking element 31 located below. This allows the first contact spring arm 24 and second contact spring arm 25 located in the upper and lower rows to contact the conductive surfaces of the docking elements 31 located on the upper and lower sides, respectively. Both the first contact spring arm 24 and the second contact spring arm 25 extend rearward from the cantilever plate 23, which not only saves materials but also facilitates stamping and bending, simplifying the manufacturing process. Furthermore, their rearward extension prevents the mating element 31 from impacting the end of the first contact spring arm 24 during the insertion of the connector 3 from front to back, thus avoiding collapse and pinning. The cantilever plate 23 extends the lever arm of the first contact spring arm 24 and the second contact spring arm 25. The clearance fit between the cantilever plate 23 and the wall of the terminal receiving groove 13 allows the cantilever plate 23 to have spring-loaded space within the terminal receiving groove 13, resulting in longer lever arms and enhanced elasticity of the first contact spring arm 24 and the second contact spring arm 25. This enhances elastic displacement, reducing the insertion and extraction force between the conductive terminal 2 and the connector 3, facilitating user insertion, reducing the risk of scratching the surface plating, and ensuring good contact performance and reliable electrical connection of the electrical connector 1000. Regarding the clearance fit between the cantilever plate 23 and the terminal receiving groove 13, it should be noted that when the electrical connector 1000 is not mated with the docking connector 3, there is a gap between the cantilever plate 23 and the wall of the terminal receiving groove 13.When the electrical connector 1000 is plugged into the docking connector 3, the first contact spring arm 24 and the second contact spring arm 25 are elastically offset under force, causing the extension plate 23 to move toward the wall of the terminal receiving groove 13. During this process, the extension plate 23 undergoes a slight elastic offset, causing the gap between the extension plate 23 and the wall of the terminal receiving groove 13 to gradually decrease. In this embodiment, the extension plate 23 will eventually abut against the wall of the terminal receiving groove 13. Of course, in other embodiments, the extension plate 23 may not abut against the wall of the terminal receiving groove 13 after undergoing a slight elastic offset, as long as the extension plate 23 can undergo a slight elastic offset during the insertion of the docking element 31. Whether the extension plate 23 abuts against the wall of the terminal receiving groove 13 after undergoing a slight elastic offset is not limited here. The distance H1 between the contact surface of the first contact spring arm 24 and the overhang plate 23 in the vertical direction is less than the distance H2 between the contact surface of the second contact spring arm 25 and the overhang plate 23 in the vertical direction. This makes the height of the first contact spring arm 24 relative to the overhang plate 23 less than the height of the second contact part relative to the overhang plate 23. When the mating connector 3 is just inserted into the electrical connector 1000, the first contact spring arm 24 only needs a small offset to allow the mating element 31 to continue to be inserted, so that the insertion force at the beginning of the insertion is small. Moreover, since there is a height difference between the first contact spring arm 24 and the second contact spring arm 25, when viewed from front to back, the second contact spring arm 25 located at the rear will not be completely blocked by the first contact spring arm 24 located at the front, thus facilitating the inspection of the second contact spring arm 25 by the CCD inspection equipment.

[0041] like Figure 3 , Figure 6 and 7As shown, the first contact spring arm 24 includes a reverse bending section 241 connected to the front end of the cantilever plate 23, a first bending section 242 extending from the reverse bending section 241, and a first contact section 243 extending from the first bending section 242. The second contact spring arm 25 includes a second bending section 251 connected to the rear end of the cantilever plate 23, an inclined section 252 extending from the second bending section 251, and a second contact section 253 extending from the inclined section 252. The first contact spring arm 24 has one more bend than the second contact spring arm 25, that is, it has an additional first bending section 242. This reduces stress concentration at the reverse bending section 241 when the first contact spring arm 24 is under force, distributing the stress to the first bending section 242, thereby reducing the elastic fatigue of the first contact spring arm 24 and reducing the insertion force. The contact surfaces of the first contact segment 243 and the second contact segment 253 both contact the same conductive surface of the docking element 31. The contact surface is designed as the surface of a sheet material, ensuring a burr-free contact surface. This contact between the sheet material and the conductive surface prevents scratching the conductive surface of the docking element 31, resulting in a more stable and reliable connection. The second bending segment 251 has a protruding first reinforcing rib 2511. One end of the first reinforcing rib 2511 extends to the inclined segment 252, and the other end extends to the cantilever plate 23, enhancing the strength of the second bending segment 251 and ensuring greater dimensional stability of the formed second contact spring arm 25. The conductive terminal 2 located in the upper receiving groove 13a has a reverse bending section 241 housed within it. A portion of the reverse bending section 241 extends upward into the upper strip opening 121 but never protrudes upward from the upper surface of the plug block 12. The protective wall 15 is spaced apart in front of the reverse bending section 241 to protect the conductive terminal 2. The first bending section 242 is located in the upper strip opening 121. The first contact section 243 is an inverted arc-shaped portion protruding from the upper strip opening 121. The second bending section 251 is bent and housed within the upper receiving groove 13a. The inclined section 252 extends upward and backward from the upper receiving groove 13a, passes through the upper strip opening 121, and partially protrudes above the upper strip opening 121. The second contact section 253 is also an inverted arc-shaped portion protruding from the upper strip opening 121.The conductive terminal 2 located in the lower receiving groove 13b has a reverse bending section 241 housed within it. A portion of the reverse bending section 241 extends downward into the lower strip opening 122 but never protrudes downward from the lower surface of the plug block 12. Protective walls 15 are spaced apart in front of the reverse bending section 241 to protect the conductive terminal 2. The first bending section 242 is located in the lower strip opening 122. The first contact section 243 is an inverted arc-shaped portion protruding from the lower strip opening 122. The second bending section 251 is bent and housed within the lower receiving groove 13b. The inclined section 252 extends downward and backward from the lower receiving groove 13b, passes through the lower strip opening 122, and partially protrudes below the lower strip opening 122. The second contact section 253 is also an inverted arc-shaped portion protruding from the lower strip opening 122.

[0042] like Figure 1 and Figure 3 As shown, the fixing piece is inserted into the fixing grooves on the left and right side walls of the insulating body 1, thereby fixing the electrical connector 1000 to the circuit board 4.

[0043] In summary, the conductive terminal 2 and electrical connector 1000 of this utility model have the following beneficial effects:

[0044] 1. The cantilever plate 23 extends from one side of the main body 21 in the vertical direction. The first contact spring arm 24 extends rearward from the front end of the cantilever plate 23, and the second contact spring arm 25 extends rearward from the rear end of the cantilever plate 23. Both the first contact spring arm 24 and the second contact spring arm 25 extend rearward from the cantilever plate 23. This not only saves materials but also facilitates stamping and bending, simplifying the manufacturing process. Furthermore, since both extend rearward, the mating element 31 will not impact the end of the first contact spring arm 24 during the insertion of the mating connector 3 from front to back, thus preventing collapse and pin failure. The cantilever plate 23 extends the lever arm of the first contact spring arm 24 and the second contact spring arm 25. The gap fit between the cantilever plate 23 and the wall of the terminal receiving groove 13 allows the cantilever plate 23 to have elastic space within the terminal receiving groove 13, making the lever arm of the first contact spring arm 24 and the second contact spring arm 25 longer and more elastic, enabling better elastic displacement. This reduces the insertion and extraction force between the conductive terminal 2 and the mating element 31, making it easier for the user to insert and reduce the risk of scratching the surface plating of each component, ensuring that the electrical connector 1000 has good contact performance and reliable electrical connection.

[0045] 2. The distance between the contact surface of the first contact spring arm 24 and the overhang plate 23 in the vertical direction is less than the distance between the contact surface of the second contact spring arm 25 and the overhang plate 23 in the vertical direction. This makes the height of the first contact spring arm 24 relative to the overhang plate 23 less than the height of the second contact part relative to the overhang plate 23. When the mating connector 3 is just inserted into the electrical connector 1000, the first contact spring arm 24 only needs a small offset to allow the mating element 31 to continue to be inserted, so that the insertion force at the beginning of the insertion is small. Moreover, since there is a height difference between the first contact spring arm 24 and the second contact spring arm 25, when viewed from front to back, the second contact spring arm 25 located at the rear will not be completely blocked by the first contact spring arm 24 located at the front, thus facilitating the inspection of the second contact spring arm 25 by the CCD inspection equipment.

[0046] 3. The first contact spring arm 24 includes a reverse bending section 241 connected to the front end of the cantilever plate 23, a first bending section 242 extending from the reverse bending section 241, and a first contact section 243 extending from the first bending section 242. The second contact spring arm 25 includes a second bending section 251 connected to the rear end of the cantilever plate 23, an inclined section 252 extending from the second bending section 251, and a second contact section 253 extending from the inclined section 252. The contact surfaces of the first contact section 243 and the second contact section 253 jointly contact the same conductive surface of the docking element 31. The contact surface is set as the plate surface, so that the contact surface is burr-free. By contacting the plate surface with the conductive surface, it is ensured that the contact surface will not scratch the conductive surface of the docking element 31, making the connection more stable and reliable. The first contact spring arm 24 has one more bend than the second contact spring arm 25, that is, it has an additional first bend segment 242. This reduces stress concentration at the reverse bend segment 241 when the first contact spring arm 24 is subjected to force, and disperses the stress to the first bend segment 242, thereby reducing the elastic fatigue of the first contact spring arm 24 and reducing the insertion force.

[0047] 4. The second bending section 251 is provided with the first reinforcing rib 2511. One end of the first reinforcing rib 2511 extends to the inclined section 252, and the other end of the first reinforcing rib 2511 extends to the cantilever plate 23, thereby enhancing the strength of the second bending section 251 and ensuring that the dimensions of the second contact spring arm 25 after molding are more stable.

[0048] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A conductive terminal for contacting a mating element, characterized in that, include: A main body is a side-standing plate-like structure. A cantilever plate extends from one side of the main body in the vertical direction. A first contact spring arm extends backward from the front end of the cantilever plate. A second contact spring arm extends backward from the rear end of the cantilever plate. The second contact spring arm and the first contact spring arm are both located on the same side of the cantilever plate in the vertical direction. The first contact spring arm and the second contact spring arm are directly opposite each other and spaced apart. The first contact spring arm and the second contact spring arm jointly contact the same conductive surface of the docking element. A tail section, which is located behind the main body and is used to connect to a circuit board.

2. The conductive terminal as described in claim 1, characterized in that: The distance between the contact surface of the first contact spring arm and the overhang plate in the vertical direction is less than the distance between the second contact spring arm and the overhang plate in the vertical direction.

3. The conductive terminal as described in claim 1, characterized in that: The first contact spring arm includes a reverse bending section connected to the front end of the overhang plate, a first bending section extending from the reverse bending section, and a first contact section extending from the first bending section. The second contact spring arm includes a second bending section connected to the rear end of the overhang plate, an inclined section extending from the second bending section, and a second contact section extending from the inclined section. The plate surface of the first contact section and the plate surface of the second contact section are in contact with the same conductive surface of the docking element.

4. The conductive terminal as described in claim 3, characterized in that: The second bending section is provided with a first reinforcing rib, one end of which extends to the inclined section and the other end of which extends to the cantilever plate.

5. The conductive terminal as described in claim 1, characterized in that: A transition bend is provided between the cantilever plate and the main body. The main body has a notch recessed at the rear end of the transition bend. A second reinforcing rib is protruding from the transition bend. One end of the second reinforcing rib extends to the main body, and the other end of the second reinforcing rib extends to the cantilever plate.

6. An electrical connector for mating with a mating connector having mating elements, characterized in that, include: An insulating body has a rearward recessed mating cavity at its front end for inserting the mating connector, and a plurality of terminal receiving slots at its rear end that communicate with the mating cavity. Multiple conductive terminals are housed in multiple terminal receiving slots, each conductive terminal including a main body. A cantilever plate extends from one side of the main body in the vertical direction. The cantilever plate is clearance-fitted with the wall of the terminal receiving slot. A first contact spring arm extends from the front end of the cantilever plate and a second contact spring arm extends from the rear end of the cantilever plate. The second contact spring arm and the first contact spring arm are both located on the same side of the cantilever plate in the vertical direction. The first contact spring arm and the second contact spring arm jointly contact the same conductive surface of the mating element. The rear end of each conductive terminal has a tail that extends out of the insulating body and is used to connect to a circuit board.

7. The electrical connector as claimed in claim 6, characterized in that: The wall of the terminal receiving groove is provided with a stop portion, the cantilever plate protrudes from one side of the main body in the left-right direction, the main body has a backstop spring, the backstop spring protrudes from the other side of the main body in the left-right direction, and the stop portion prevents the backstop spring from moving backward.

8. The electrical connector as claimed in claim 6, characterized in that: The plurality of terminal receiving slots include a plurality of upper receiving slots arranged in a row and a plurality of lower receiving slots arranged in a row. The overhanging plate of the conductive terminal located in the upper receiving slot and the overhanging plate of the conductive terminal located in the lower receiving slot are aligned in the vertical direction. The first contact spring arm and the second contact spring arm of the conductive terminal located in the upper receiving slot extend upward at an angle, and the first contact spring arm and the second contact spring arm of the conductive terminal located in the lower receiving slot extend downward at an angle.

9. The electrical connector as claimed in claim 8, characterized in that: The rear wall of the docking cavity has at least one insertion block protruding forward. The upper receiving groove extends forward from the rear end of the insulating body to the insertion block, and the upper surface of the insertion block has an upper strip-shaped opening to communicate with the upper receiving groove. The first contact spring arm and the second contact spring arm of the conductive terminal located in the upper receiving groove enter the docking cavity upward through the upper strip-shaped opening. The lower receiving groove extends forward from the rear end of the insulating body to the insertion block, and the lower surface of the insertion block has a lower strip-shaped opening to communicate with the lower receiving groove. The first contact spring arm and the second contact spring arm of the conductive terminal located in the lower receiving groove enter the docking cavity downward through the lower strip-shaped opening.

10. The electrical connector as claimed in claim 9, characterized in that: Each of the upper and lower receiving slots has a protective wall at its front end. The first contact spring arm includes a reverse bending section connected to the front end of the overhang plate, a first bending section extending from the reverse bending section, and a first contact section extending from the first bending section. The reverse bending section does not protrude from the upper or lower surface of the plug block. The protective wall is spaced in front of the reverse bending section.

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