Female connector and connector

Abstract

The utility model discloses a female seat of connector and connector, the female seat of connector includes the casing, contact terminal, the casing includes the end face, the jack, contact terminal includes the metal ring, metal wire, and metal wire includes first connecting end, second connecting end, a plurality of winding parts, and a plurality of winding parts arrange along the circumference of metal ring, winding part includes first contact arm, second contact arm, first elastic arm, second elastic arm, a plurality of second contact arms jointly enclose an insertion space, and the inner surface between second contact arm and metal ring forms the space for avoiding, the position of the outer surface of metal ring and first contact arm contact forms the contact part, and the tangent of the contact part and the outer surface of metal ring is tangent line A, and the first elastic arm and second elastic arm are all formed with the first included angle less than 90 of straight line A, the utility model makes the plug -in force of connector male head be relatively small, and metal wire and male head change from hard friction to elastic contact friction, and it is not easy to break, and the service life of connector female seat is promoted.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a connector socket and a connector. Background Technology

[0002] Connectors typically consist of a female connector and a male connector. The female connector has a socket with contact terminals inside. When the male connector is inserted into the socket of the female connector, the contact terminals and the contact area on the male connector become conductive, thus achieving electrical connection or signal conduction. The contact terminals configured in existing female connectors fall into two categories: one is a metal spring, and the other is a composite structure consisting of a wire spring and a metal support.

[0003] For female connectors using metal spring contacts, the width and number of elastic arms must meet design standards to ensure that the contact terminals have sufficient contact area to meet current carrying requirements. Larger elastic arms and a greater number of elastic arms result in greater insertion and extraction forces on the connector. After a period of use, the elastic arms will experience fatigue deformation, leading to a shorter service life for the female connector.

[0004] In composite contact terminals composed of a spring and a metal support, the core component is a metal wire wound around a ring-shaped metal support. A certain radial space is reserved between the metal wire and the metal support to allow for deformation of the wire. Because the metal wire is arranged around the socket of the female connector, after the male connector is inserted, the metal wire contacts the contact area of ​​the male connector at different circumferential positions, ensuring good contact and fit between the contact terminal and the male connector, meeting current-carrying requirements, and resulting in relatively low insertion and extraction forces, thus improving the service life of the female connector. However, in existing composite contact terminals using a spring and a metal support, when the male connector is inserted into the female connector, the male connector squeezes the metal wire, causing radial deformation. The radial rebound force of the metal wire creates resistance to insertion, resulting in significant insertion and extraction forces. Furthermore, when the metal wire is squeezed by the male connector, the radial force concentrated locally on the metal wire, easily leading to wire breakage and contact failure. Utility Model Content

[0005] The main purpose of this invention is to provide a female connector and a connector that can reduce insertion and extraction force while ensuring good contact and avoid contact failure caused by breakage of the contact terminals.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The present invention adopts the following technical solution:

[0008] The female connector, including the housing and contact terminals;

[0009] The housing includes an end face and an insertion hole extending from the end face into the interior of the housing;

[0010] The contact terminal includes a metal ring and a metal wire. The metal wire includes a first connecting end, a second connecting end, and multiple winding portions. The multiple winding portions are arranged circumferentially along the metal ring. The first connecting end and the second connecting end are respectively connected to the first and last winding portions and are both connected to the metal ring.

[0011] The winding portion includes a first contact arm located outside the metal ring and in contact with and communicating with the outer surface of the metal ring, a second contact arm located inside the metal ring, a first elastic arm, and a second elastic arm. The first elastic arm and the second elastic arm are located at opposite ends of the metal ring axially. The first contact arm includes a first end and a second end opposite to each other, and the second contact arm includes a third end and a fourth end opposite to each other. The first elastic arm is connected between the first end of the first contact arm and the third end of the second contact arm. In two adjacent winding portions, the second elastic arm of one winding portion is connected between the fourth end of the second contact arm of one winding portion and the second end of the first contact arm of the other winding portion.

[0012] The second contact arms of multiple winding portions together form an insertion space for inserting the male connector. A clearance space is formed between the second contact arm and the inner surface of the metal ring. A contact portion is formed at the position where the outer surface of the metal ring contacts the first contact arm. The tangent line passing through the contact portion and tangent to the outer surface of the metal ring is a straight line A. The straight line A forms a first angle of less than 90° with both the first elastic arm and the second elastic arm.

[0013] Preferably, the first end and the second end of the first contact arm are circumferentially offset from the metal ring so that a second included angle is formed between the first contact arm and the axial direction of the metal ring; the first included angle between the first elastic arm and the straight line A is smaller than the first included angle between the second elastic arm and the straight line A.

[0014] Preferably, the metal ring has an opening extending from one end to the other, and the portions of the metal ring located on both sides of the opening respectively form a free end.

[0015] Preferably, the metal ring is provided with two hook-shaped hooks, and a groove is formed on the hook-shaped hooks extending along the axial direction of the metal ring. The first connecting end and the second connecting end of the metal wire are respectively embedded in the grooves of the two hook-shaped hooks.

[0016] Preferably, the metal ring has an opening extending from one end to the other, and the portions on both sides of the opening on the metal ring respectively form a free end, with two hook-shaped attachments arranged on the metal ring at positions opposite to the opening.

[0017] Preferably, a connecting segment is formed on the metal ring at a position opposite to the opening. The width of the connecting segment is smaller than the width of other positions on the metal ring. The connecting segment is arranged at the middle position of the metal ring in the axial direction so that a groove is formed on the part of the metal ring located on both sides of the connecting segment. Two hook-shaped hook parts are placed in the two grooves and integrally formed with the metal ring.

[0018] Preferably, the slot on the hook-shaped hook portion is arranged radially outward towards the metal ring, the second contact arm of the winding portion at the first end bends outward from one end of the metal ring to form a first connecting end, and the second contact arm of the winding portion at the tail end bends outward from the other end of the metal ring to form a second connecting end.

[0019] Preferably, the first contact arm of the plurality of winding portions is clamped between the outer surface of the metal ring and the inner wall of the socket.

[0020] Preferably, the inner wall of the socket is provided with an annular recess, the inner end of the recess forms a limiting end face, and a plug that is fixedly fitted with the housing is embedded at the port of the socket. The contact terminal is limited between the limiting end face and the plug. The outer edge of the plug is provided with a snap-fit ​​groove, and the inner wall of the socket is provided with a snap-fit ​​flange. After the plug is inserted into the socket from the port and rotated at a certain angle, the snap-fit ​​flange is snapped into the snap-fit ​​groove.

[0021] Connectors, including the female connectors described above.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] In this invention, multiple winding portions on the metal wire are arranged around a metal ring, such that the first and second elastic arms on both sides of the winding portions are inclined. When the second contact arm on the metal wire located inside the metal ring is subjected to radial outward pressing force from the connector male head, the first and second elastic arms swing outward with the second contact arm, thereby increasing the diameter of the insertion space enclosed by the multiple second contact arms. Under the action of the rebound force of the first and second elastic arms, the second contact arm has better contact reliability with the surface of the connector male head. The multiple second contact arms contact the surface of the connector male head together, satisfying the current carrying requirements and effectively reducing the temperature rise of the connector.

[0024] The larger contact area, more contact points, and elastic structure formed by the metal wires ensure that the male connector can make a more stable contact with the female connector, giving the connector better performance in vibration environments.

[0025] Since the first and second elastic arms, which are inclined, swing outward based on the deformation at the connection position with the first contact arm, the male connector does not need to overcome the resistance generated by the deformation of the first and second elastic arms when it is inserted. Therefore, the insertion and extraction force of the male connector is relatively small. At the same time, since the first and second elastic arms have small deformation, they are not easy to break when squeezed by the male connector, which improves the service life of the female connector.

[0026] When the male connector is inserted into the socket, the metal wire can deform radially at different positions around the circumference, giving the female connector a high tolerance for the male connector. More importantly, due to the innovative structure of using a metal ring as an elastic support, this invention enables fully automated assembly of the female connector, further reducing the manufacturing cost of the connector and ensuring high consistency of the female connector, thereby improving the yield rate and production capacity of the connector female connector.

[0027] Furthermore, the assembly relationship between the elastic contact terminals of the female connector and the head plug makes quick replacement of the female connector contact terminals possible. In high-current applications, when the elastic component reaches the end of its lifespan or fails, compared to existing methods that require replacing the entire connector and wiring, this invention only requires replacing the contact terminals, greatly reducing the user's maintenance costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is an assembly diagram of the present invention;

[0031] Figure 3 for Figure 1 Schematic diagram of the structure of the intermediate contact terminal;

[0032] Figure 4 for Figure 3 View from direction B;

[0033] Figure 5 for Figure 3 A schematic diagram of the structure of the metal wire in the middle;

[0034] Figure 6 for Figure 3 Schematic diagram of the structure of the central metal ring;

[0035] Figure 7 This is a schematic diagram of one working state of the present invention.

[0036] Wherein: 10, housing; 101, end face; 11, insertion hole; 12, recess; 13, limiting end face; 14, snap-fit ​​flange; 200, contact terminal; 20, metal wire; 21, first contact arm; 211, first end; 212, second end; 22, second contact arm; 221, third end; 222, fourth end; 23, first elastic arm; 24, second elastic arm; 25, first connecting end; 26, second connecting end; 30, metal ring; 301, outer surface; 302, inner surface; 303, free end; 31, opening; 32, hook-shaped hook part; 321, slot; 33, connecting section; 34, groove; 40, plug; 41, snap-fit ​​groove; 90, male head. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0040] like Figure 1 , 2As shown in Figures 3, 4, 5, 6, and 7, a female connector of this utility model is provided, which includes a housing 10 and contact terminals 200. The housing 10 is generally cylindrical in shape and includes an end face 101 and a socket 11 extending from the end face 101 into the housing 10. The cross-section of the socket 11 is circular so that the male connector can be inserted into the socket 11 from the end face 101. In other embodiments, the shape of the housing 10 is not limited to cylindrical, but may be other shapes suitable for assembly onto electronic devices or circuit boards.

[0041] The contact terminal 200 includes a metal ring 30 and a metal wire 20. Specifically, the metal ring 30 may be made of a copper-based material with good conductivity. The metal wire 20 includes a first connecting end 25, a second connecting end 26, and a plurality of winding portions. The plurality of winding portions are arranged circumferentially along the metal ring 30. The first connecting end 25 is connected to the winding portion at the beginning, and the second connecting end 26 is connected to the winding portion at the end. Both the first connecting end 25 and the second connecting end 26 are connected to the metal ring 30.

[0042] The winding part includes a first contact arm 21, a second contact arm 22, a first elastic arm 23, and a second elastic arm 24. The first contact arm 21 is located outside the outer surface 301 of the metal ring 30. The first contact arm 21 includes a first end 211 extending to one end of the metal ring 30 and a second end 212 opposite to the first end 211 and extending to the other end of the metal ring 30. The second contact arm 22 is located inside the inner surface 302 of the metal ring 30. The second contact arm 22 includes a third end 221 extending to one end of the metal ring 30 and a fourth end 222 opposite to the third end 221 and extending to the other end of the metal ring 30. The first elastic arm 23 and the second elastic arm 24 are located at the two ends of the metal ring 30, respectively.

[0043] The first elastic arm 23 is connected between the first end 211 of the first contact arm 21 and the third end 221 of the second contact arm 22. In two adjacent winding portions, the second elastic arm 24 of one winding portion is connected between the fourth end 222 of the second contact arm 22 of the winding portion and the second end 212 of the first contact arm 21 of the other winding portion, so that the winding portion is arranged around the metal ring 30.

[0044] In other words, starting from the first contact arm 21 of one of the winding portions, the metal wire 20 extends to one end of the metal ring 30 and is bent toward the inside of the metal ring 30 to form a first elastic arm 23. At the inner end of the first elastic arm 23, the metal wire 20 is bent toward the inner side of the inner surface 302 of the metal ring 30 to form a second contact arm 22. After the second contact arm 22 extends to the other end of the metal ring 30, the metal wire 20 is bent from the outside of the other end of the metal ring 30 toward the outside of the metal ring 30 to form a second elastic arm 24. At the outer end of the second elastic arm 24, the metal wire 20 is bent toward the outside of the outer surface 301 of the metal ring 30 to form another first contact arm 21 of an adjacent winding portion. This process is repeated so that the metal wire 20 forms multiple continuous winding portions wound on the metal ring 30.

[0045] The second contact arms 22 of the aforementioned multiple winding portions together form an insertion space on the inner side of the inner surface 302 of the metal ring 30. This insertion space is used for the insertion of the male head 90 of the connector. A clearance space is formed between the second contact arm 22 and the inner surface 302 of the metal ring 30 to reserve space for the second contact arm 22 to move radially outward when it is pressed outward by the male head 90 of the connector. The part of the outer surface 301 of the metal ring 30 that contacts the first contact arm 21 forms a contact portion. The tangent line passing through the contact portion and tangent to the outer surface 301 of the metal ring 30 is a straight line A. A straight line A forms an angle α with the extension direction of the first elastic arm 23, and a straight line A forms an angle b with the extension direction of the second elastic arm 24. Both angles α and α are less than 90 degrees.

[0046] In other words, when the metal wire 20 is bent at the junction of the first contact arm 21 and the first elastic arm 23, viewed from the direction perpendicular to the cross-section of the metal ring 30, the metal wire 20 is bent inward towards the metal ring 30 and simultaneously deflected to the right. This causes the extension direction of the first elastic arm 23 to be skewed at a certain angle relative to the radial direction of the metal ring 30. Similarly, the extension direction of the second elastic arm 24 is skewed at a certain angle relative to the radial direction of the metal ring 30. When the male connector 90 is inserted into the insertion... Then, the male head 90 is placed in the insertion space surrounded by multiple second contact arms 22. The male head 90 will apply radial outward squeezing force to the multiple second contact arms 22. When the second contact arms 22 are squeezed radially outward, they move towards the interior of the clearance space to approach the inner surface 302 of the metal ring 30. The inclined first elastic arm 23 swings outward with the first end 211 of the first contact arm 21 as the fulcrum. Similarly, the inclined second elastic arm 24 swings outward with the second end 212 of the first contact arm 21 as the fulcrum.

[0047] In this invention, multiple winding portions on the metal wire 20 are arranged around the metal ring 30, such that the first elastic arm 23 and the second elastic arm 24 on both sides of the winding portion are inclined. When the second contact arm 22 located inside the metal ring 30 on the metal wire 20 is subjected to radially outward pressing force from the connector male head 90, the first elastic arm 23 and the second elastic arm 24 swing outward with the second contact arm 22, thereby increasing the diameter of the insertion space enclosed by the multiple second contact arms 22. Under the action of the rebound force of the first elastic arm 23 and the second elastic arm 24, the second contact arm 22 has better contact reliability with the surface of the connector male head 90. The multiple second contact arms 22 jointly contact the surface of the connector male head 90, satisfying the current carrying requirements and effectively reducing the temperature rise of the connector. The larger contact area ensures that the male head 90 can fit more stably with the female head, giving the connector better shock resistance.

[0048] Because the inclined first elastic arm 23 and second elastic arm 24 both swing outward based on the deformation at their connection point with the first contact arm 21, the male connector 90 does not need to overcome the resistance generated by the deformation of the first elastic arm 23 and second elastic arm 24 when inserted. Therefore, the insertion and extraction force of the male connector 90 is relatively small. At the same time, because the first elastic arm 23 and second elastic arm 24 have small deformation, they are not easy to break when squeezed by the male connector 90, thus improving the service life of the female connector. When the male connector 90 is inserted into the socket 11, the metal wire 20 can deform radially at different positions in the circumferential direction, giving the female connector a high tolerance for the male connector 90. In addition, this invention can realize fully automated assembly of the female connector, reducing the manufacturing cost of the connector. During mass production, it ensures high consistency of the female connector and improves the yield rate of the female connector.

[0049] In a preferred embodiment, the first end 211 and the second end 212 of the first contact arm 21 are offset in the circumferential direction of the metal ring 30, that is, when viewed from a direction perpendicular to the cross-section of the metal ring 30, the first end 211 and the second end 212 do not coincide, so that the first contact arm 21 forms an angle with the axial direction of the metal ring 30. In this way, multiple winding portions can be arranged continuously and arranged in the circumferential direction of the metal ring 30, and it is ensured that the first elastic arm 23 and the second elastic arm 24 on all winding portions are inclinedly arranged in the manner described above.

[0050] To ensure that the first contact arms 21 of two adjacent winding sections are arranged at intervals and the second contact arms 22 are arranged at intervals, and that the multiple first contact arms 21 and multiple second contact arms 22 are evenly distributed in the circumferential direction of the metal ring 30, the extension direction of the first elastic arm 23 forms an angle α with the straight line A, and the extension direction of the second elastic arm 24 forms an angle b with the straight line A, wherein the angle α is smaller than the angle b. Since the inclination angles of the first elastic arm 23 and the second elastic arm 24 at the two ends of the metal ring 30 are different, and the first contact arm 21 forms an angle with the circumferential direction of the metal ring 30, the multiple winding sections can be evenly arranged in the circumferential direction of the metal ring 30, especially so that the multiple first contact arms 21 and multiple second contact arms 22 that are radially offset by a certain distance in the metal ring 30 can be evenly distributed in the circumferential direction of the metal ring 30.

[0051] In addition, the first elastic arm 23 and the second elastic arm 24 are set at different tilt angles. Multiple winding parts can be evenly distributed along the circumference of the metal ring 30, while multiple winding parts can be continuously wound by copper wire or other suitable wires. That is, the metal wire 20 is an integral structure. The integral metal wire 20 can make better contact with the male head 90 of the connector and facilitates the assembly of the metal wire 20 and the metal ring 30.

[0052] The metal ring 30 has an opening 31 extending from one end to the other. The portions of the metal ring 30 located on both sides of the opening 31 form free ends 303. The opening 31 on the metal ring 30 makes the metal ring 30 form a C-shaped structure. The metal ring 30 itself has a certain elastic deformation capability. After the contact terminal 200 is fully embedded into the insertion hole 11 of the housing 10, the C-shaped metal ring 30 has a tendency to deform radially. Then, the radially outward elastic stress of the metal ring 30 presses the multiple first contact arms 21 against the inner wall of the insertion hole 11, so that the metal ring 30 provides support for the metal wire 20, and the fit between the contact terminal 200 and the housing 10 is more stable and reliable.

[0053] The metal ring 30 is provided with two hook-shaped hook parts 32, and a groove 321 extending circumferentially along the metal ring 30 is formed on the hook-shaped hook parts 32. The first connecting end 25 and the second connecting end 26 of the metal wire 20 are respectively embedded in the grooves 321 of the two hook-shaped hook parts 32, thereby connecting the first connecting end 25 and the second connecting end 26 of the metal wire 20 to the metal ring 30 in a snap-fit ​​manner. By using the snap-fit ​​method, the first connecting end 25 and the second connecting end 26 of the metal wire 20 can have a small amount of movement relative to the metal ring 30 when the metal wire 20 is squeezed, thereby avoiding stress concentration at the connection between the first connecting end 25 and the second connecting end 26 and the metal ring 30, ensuring that the first connecting end 25 and the second connecting end 26 can make good contact with the metal ring 30, and preventing the metal wire 20 from breaking due to stress concentration when squeezed.

[0054] In a preferred embodiment, two hook-shaped attachments 32 are positioned on the metal ring 30 opposite to the opening 31, and the ends of the metal wires 20 are staggered from the openings 31 to ensure that the entire contact terminal 200 is a complete circle, so that the metal wires 20 are arranged in the entire circumferential direction, and the metal wires 20 have a large number of second contact arms 22 that can contact the male connector 90.

[0055] A connecting segment 33 is formed on the metal ring 30 at a position opposite to the opening 31. The connecting segment 33 has a relatively narrow width, meaning that the width of the connecting segment 33 is smaller than the width of other positions on the metal ring 30. The connecting segment 33 is centrally located along the axial direction of the metal ring 30, forming a groove 34 on each side of the connecting segment 33. Two hook-shaped attachments 32 are respectively placed in the two grooves 34, and both hook-shaped attachments 32 are integrally formed with the metal ring 30. The metal ring 30 can be made by punching and bending a copper sheet. The metal ring 30 is manufactured using a process called punching. A sheet-like structure is punched out at a position opposite to the opening 31 on the metal ring 30. The sheet-like structure is then bent to form a hook-like hook part 32. After the sheet-like structure is bent, a groove 34 is formed on the metal ring 30, and the part between the two grooves 34 forms a connecting section 33. The connecting section 33 is positioned directly opposite the opening 31. That is, the position on the metal ring 30 that is directly opposite the opening 31 has a relatively small width, which makes the metal ring 30 easy to deform and facilitates the insertion of the contact terminal 200 into the insertion hole 11 of the housing 10.

[0056] The slots 321 on the hook-shaped hook part 32 are arranged radially outward from the metal ring 30. The second contact arm 22 of the winding part at the first end bends from one end of the metal ring 30 to the outside of the metal ring 30 to form the first connecting end 25. The second contact arm 22 of the winding part at the tail end bends from the other end of the metal ring 30 to the outside of the metal ring 30 to form the second connecting end 26. The first connecting end 25 and the second connecting end 26 are respectively inserted into the slots of the two slots 321, which facilitates the assembly of the metal wire 20 and the metal ring 30. The slots 321 at the connection between the hook-shaped hook part 32 and the first connecting end 25 and the second connecting end 26 have a semi-enclosed structure, so that the first connecting end 25 and the second connecting end 26 have a certain amount of mobility, thereby preventing the metal wire 20 from breaking due to stress concentration when it is squeezed.

[0057] In a preferred embodiment, the second contact arm 22 of the winding portion at the first end bends outward from one end of the metal ring 30 into one of the grooves 34 to form a first connecting end 25. The second contact arm 22 of the winding portion at the tail end bends outward from the other end of the metal ring 30 into another groove 34 to form a second connecting end 26. That is, in the two grooves 34, the first connecting end 25 and the second connecting end 26 are respectively connected to the two hook-shaped hook portions 32, so as to avoid the first connecting end 25 and the second connecting end 26 protruding radially from the first contact arm 21. When the contact terminal 200 is assembled with the housing 10, the first connecting end 25 and the second connecting end 26 will not interfere with the inner wall of the insertion hole 11.

[0058] After the contact terminal 200 is inserted into the socket 11, the first contact arms 21 of the multiple winding portions are clamped between the outer surface 301 of the metal ring 30 and the inner wall of the socket 11. When the male head 90 of the connector is inserted into the socket 11 and placed in the insertion space surrounded by the multiple second contact arms 22, the second contact arms 22 are pressed outward by the male head 90 of the connector, causing the second contact arms 22 to move radially outward. When the first elastic arm 23 and the second elastic arm 24 swing outward, the first contact arm 21 is clamped by the metal ring 30 and the inner wall of the socket 11, and the first contact arm 21 remains in a fixed position or is substantially able to remain in a fixed position, ensuring the stability of the contact between the contact terminal 200 and the male head 90.

[0059] To prevent the contact terminal 200 from moving axially, an annular recess 12 is provided on the inner wall of the socket 11. The inner end of the recess 12 forms a limiting end face 13. A plug 40 is embedded at the port of the socket 11. The plug 40 is fixedly engaged with the housing 10. The contact terminal 200 is limited between the plug 40 and the limiting end face 13. During assembly, the contact terminal 200 is pressed into the socket 11 from the port of the socket 11, so that the contact terminal 200 contacts the limiting end face 13. The limiting end face 13 is used to position the contact terminal 200. Then, the plug 40 is installed at the port of the socket 11 to cover the contact terminal 200.

[0060] The plug 40 can be fixed to the housing 10 by a snap-fit ​​method. Specifically, a snap-fit ​​groove 41 is provided on the outer edge surface of the plug 40, and a snap-fit ​​flange 14 is provided on the inner wall of the insertion hole 11. When assembling the plug 40 and the housing 10, the plug 40 is inserted into the insertion hole 11 through its port, so that the snap-fit ​​groove 41 and the snap-fit ​​flange 14 on the plug 40 are circumferentially offset. After the plug 40 is installed in place along the axial direction of the housing 10, the plug 40 is rotated using a tool. After the plug 40 is rotated 90°, the snap-fit ​​flange 14 is engaged in the snap-fit ​​groove 41, finally fixing the plug 40 and the housing 10 together. In other embodiments, the plug 40 can also be fixed to the housing 10 by a screw connection.

[0061] The connector of this utility model includes the female socket of the connector described above. The other structures of the connector are the same as those in the prior art and will not be described in detail here.

[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A female connector, characterized in that, Includes housing and contact terminals; The housing includes an end face and an insertion hole extending from the end face into the interior of the housing; The contact terminal includes a metal ring and a metal wire. The metal wire includes a first connecting end, a second connecting end, and multiple winding portions. The multiple winding portions are arranged circumferentially along the metal ring. The first connecting end and the second connecting end are respectively connected to the first and last winding portions and are both connected to the metal ring. The winding portion includes a first contact arm located outside the metal ring and in contact with and communicating with the outer surface of the metal ring, a second contact arm located inside the metal ring, a first elastic arm, and a second elastic arm. The first elastic arm and the second elastic arm are located at opposite ends of the metal ring axially. The first contact arm includes a first end and a second end opposite to each other, and the second contact arm includes a third end and a fourth end opposite to each other. The first elastic arm is connected between the first end of the first contact arm and the third end of the second contact arm. In two adjacent winding portions, the second elastic arm of one winding portion is connected between the fourth end of the second contact arm of one winding portion and the second end of the first contact arm of the other winding portion. The second contact arms of multiple winding portions together form an insertion space for inserting the male connector. A clearance space is formed between the second contact arm and the inner surface of the metal ring. A contact portion is formed at the position where the outer surface of the metal ring contacts the first contact arm. The tangent line passing through the contact portion and tangent to the outer surface of the metal ring is a straight line A. The straight line A forms a first angle of less than 90° with both the first elastic arm and the second elastic arm.

2. The female connector as described in claim 1, characterized in that, The first and second ends of the first contact arm are circumferentially offset from the metal ring so that a second included angle is formed between the first contact arm and the axial direction of the metal ring; the first included angle between the first elastic arm and the straight line A is smaller than the first included angle between the second elastic arm and the straight line A.

3. The female connector as described in claim 1, characterized in that, The metal ring has an opening extending from one end to the other, and the portions on both sides of the opening form a free end.

4. The female connector as described in claim 1, characterized in that, The metal ring is provided with two hook-shaped hooks, and a groove is formed on the hook-shaped hooks extending along the axial direction of the metal ring. The first connecting end and the second connecting end of the metal wire are respectively embedded in the grooves of the two hook-shaped hooks.

5. The female connector as described in claim 4, characterized in that, The metal ring has an opening extending from one end to the other. The portions on both sides of the opening form a free end, and two hook-shaped attachments are arranged on the metal ring at positions opposite to the opening.

6. The female connector as described in claim 5, characterized in that, A connecting segment is formed on the metal ring at a position opposite to the opening. The width of the connecting segment is smaller than the width of other positions on the metal ring. The connecting segment is arranged at the middle position of the metal ring in the axial direction so that a groove is formed on the part of the metal ring located on both sides of the connecting segment. Two hook-shaped hook parts are placed in the two grooves and integrally formed with the metal ring.

7. The female connector as described in any one of claims 4-6, characterized in that, The slot on the hook-shaped hook is arranged radially outward from the metal ring. The second contact arm of the winding part at the first end bends outward from one end of the metal ring to form the first connecting end. The second contact arm of the winding part at the tail end bends outward from the other end of the metal ring to form the second connecting end.

8. The female connector as described in any one of claims 3-6, characterized in that, The first contact arms of multiple winding sections are clamped between the outer surface of the metal ring and the inner wall of the socket.

9. The female connector as described in claim 8, characterized in that, The inner wall of the socket has an annular recess, and the inner end of the recess forms a limiting end face. A plug that is fixedly fitted to the housing is embedded at the port of the socket, and the contact terminal is limited between the limiting end face and the plug. The outer edge of the plug has a snap-fit ​​groove, and the inner wall of the socket has a snap-fit ​​flange. After inserting the plug into the socket from the port and rotating it at a certain angle, the snap-fit ​​flange is locked in the snap-fit ​​groove.

10. A connector, characterized in that, The female connector includes any one of claims 1-9.

Images