Switching terminal and connector
The connector design fixes wires to the male terminal, addressing contact spring failure and spatial issues by stabilizing the connection and reducing component alteration costs.
Patent Information
- Application Number
- CN202421676658.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The contact reeds of existing high-voltage connectors are prone to failure due to vibration, resulting in poor contact, and the parts are often changed at a high cost and occupy a large space.
Fix the wires to the male terminal, and the contact reeds are arranged on the female terminal. They adopt elastic sockets and avoid gap designs to reduce vibration impacts and optimize component layout to reduce change costs and space occupancy.
The risk of yield failure and fracture of contact reeds is avoided, the cost of change is reduced, the space occupation of the connector is reduced, and the reliable transmission of circuit signals is ensured.
Smart Images
Figure CN223109257U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicles, and particularly relates to an adapter terminal capable of withstanding large-current ultrasonic welding and a connector adapted to the adapter terminal. Background Art
[0002] In order to achieve fast charging of electric vehicles and high-power output of motors, the terminals of high-voltage connectors used to connect power batteries and drive motors must be able to withstand large voltages and currents, and the structure is often limited by the space inside the vehicle.
[0003] The terminals of such high-voltage connectors capable of withstanding large currents and high voltages generally include male terminals, contact reeds, and female terminals. The female terminals are mostly used for wire-end connectors. One end of the wire-end connector needs to fix the wire harness, and the transfer reed is fixed on the female terminal. The male terminals are mostly used for board-end connectors. One end of the board-end connector needs to be fixed on the circuit board / copper busbar; the board-end connector is docked with the wire-end connector to achieve the transmission of electrical signals.
[0004] At present, such high-voltage connector terminals have the following disadvantages: (1) The contact reeds are generally riveted to the female terminals of the wire-end connectors. When the female terminals fix the wires, the generated vibration will cause the contact reeds to vibrate slightly, and there is a risk of yield failure of the contact reeds, resulting in poor contact of the board-end connectors and unstable line transmission; (2) The wire-end connectors have many components. When the outlet angle changes, multiple sub-components need to be changed, resulting in too high a change cost; (3) They occupy a relatively large volume, causing the connectors to occupy more space. Summary of the Utility Model
[0005] The embodiments of the utility model provide an adapter terminal capable of withstanding large-current ultrasonic welding and a connector adapted to the adapter terminal, aiming to solve the risk of failure caused by the vibration of the contact reeds when the wires are fixed.
[0006] In a first aspect, to achieve the above object, the technical solution adopted by the utility model is: providing an adapter terminal, including: a female terminal and a male terminal. The female terminal has a docking portion and a board-end fixing portion that can be fixed to the circuit board. An elastic socket is provided on the docking portion, and a contact reed is provided in the elastic socket; the male terminal has a mating insertion portion and a wire-end fixing portion for fixing the wire; the mating insertion portion is inserted into the elastic socket and elastically abuts against the contact reed to dock the male terminal with the female terminal.
[0007] In combination with the first aspect, in a feasible manner, the male terminal further has a bending portion, the mating insertion portion and the wire-end fixing portion are arranged on opposite sides of the bending portion, and the mating insertion portion and the wire-end fixing portion are offset and parallel to each other along the insertion direction to form a hierarchical arrangement.
[0008] In combination with the first aspect, in an implementable manner, a height difference is formed between the wire end fixing portion and the mating plugging portion, and the height difference enables the center line of the wire fixed on the wire end fixing portion to coincide with the mating center line of the mating plugging portion.
[0009] In combination with the first aspect, in an implementable manner, a relief notch for weakening the plugging resistance during plugging is provided on the mating plugging portion.
[0010] In combination with the first aspect, in an implementable manner, the relief notch is provided on the edge of the mating plugging portion close to the female terminal in the plugging direction of the mating plugging portion.
[0011] In combination with the first aspect, in an implementable manner, a mating hole for fixing is provided on the bending portion.
[0012] In combination with the first aspect, in an implementable manner, the contact spring piece includes a spring piece fixing portion and a comb-shaped spring piece integrally connected to the spring piece fixing portion, and the comb-shaped spring pieces are arranged in a comb shape.
[0013] In combination with the first aspect, in an implementable manner, a plurality of contact protrusions are arranged on each of the comb-shaped spring pieces along the plugging direction, and the contact protrusions elastically abut against the mating plugging portion.
[0014] In combination with the first aspect, in an implementable manner, a narrow slit extending along the plugging direction is provided on each of the comb-shaped spring pieces.
[0015] Compared with the prior art, the beneficial effects of the adapter terminal provided by the present utility model are as follows: The female terminal with an elastic socket serves as a board-end connector to connect to a circuit board, and the male terminal serves as a wire-end connector to fix a wire. Since the contact spring piece is provided on the female terminal of the board-end connector and the wire is fixed on the wire-end connector with a mating plugging portion. Therefore, during the process of soldering the wire to the male terminal on the wire-end connector, it will not cause vibration impact on the contact spring piece, avoiding the risk of the contact spring piece yielding and failing or breaking during the process of fixing the wire by soldering, thereby ensuring the reliability and firmness of the elastic clamping of the contact spring piece and ensuring the reliability of circuit signal transmission.
[0016] In a second aspect, an embodiment of the present utility model further provides a connector adapted to the adapter terminal.
[0017] For the connector provided by the embodiment of the present utility model, since a wire-end connector that fixes the wire on the male terminal is adopted and the contact spring piece is provided on the female terminal, the vibration impact on the contact spring piece during the wire soldering and fixing is avoided, and the risk of the contact spring piece yielding and failing or breaking is avoided, thereby ensuring the reliability and firmness of the elastic clamping of the contact spring piece and ensuring the reliability of circuit signal transmission. Description of the Drawings
[0018] Figure 1 Schematic perspective view of the adapter terminal provided by an embodiment of the present utility model;
[0019] Figure 2 Schematic plan view of the adapter terminal provided by an embodiment of the present utility model;
[0020] Figure 3 Is the sectional view along Figure 2 Line A-A in
[0021] Figure 4 Is the sectional view along Figure 2 Line B-B in
[0022] Figure 5 Schematic perspective view of the male terminal provided by an embodiment of the present utility model;
[0023] Figure 6 Schematic view of the positional relationship between the male terminal and the wire provided by an embodiment of the present utility model;
[0024] Figure 7 Schematic perspective view of the female terminal provided by an embodiment of the present utility model;
[0025] Figure 8 Schematic plan view of the female terminal provided by an embodiment of the present utility model;
[0026] Figure 9 Is the sectional view along Figure 8 Line C-C in
[0027] Figure 10 Schematic view of the limiting protrusion on the female terminal provided by an embodiment of the present utility model;
[0028] Figure 11 Schematic perspective view of the contact spring provided by an embodiment of the present utility model Figure 1 ;
[0029] Figure 12 Schematic perspective view of the contact spring provided by an embodiment of the present utility model Figure 2 ;
[0030] Description of the reference numerals:
[0031] 1. Male terminal; 11. Mateable insertion part; 111. Avoidance notch; 12. Bending part; 121. Mateable hole; 13. Wire end fixing part; 131. Welding plane; 2. Female terminal; 21. Docking part; 211. Elastic socket; 212. Limit protrusion; 213. Rivet; 22. Board end fixing part; 221. Fastening nut; 23. Protective sleeve; 24. Contact spring piece; 241. Spring piece fixing part; 242. Comb-shaped spring piece; 243. Contact protrusion; 244. Riveting hole; 3. Wire; 31. Wire center line. Detailed implementation manner
[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0033] In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using terms such as "length", "width", "center", "horizontal", "height", "low", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present invention.
[0034] Currently, the fixing method of the wire on the female terminal mostly uses ultrasonic welding. Since the contact spring piece is also arranged on the female terminal, the vibration generated during ultrasonic welding acts on the female terminal, resulting in micro-vibration of the contact spring piece. The continuous micro-vibration of the contact spring piece will cause the contact spring piece to yield and fail, reducing its elasticity, and further causing risks such as poor contact with the male terminal and inability to clamp the male terminal, which affect circuit transmission. To solve this problem, the adapter terminal provided by the present utility model adopts the technical means of welding and fixing the wire on the male terminal.
[0035] Please refer to Figures 1 to 12 together, and now the adapter terminal provided by the present utility model will be described. The adapter terminal includes a female terminal 2 and a male terminal 1. The female terminal 2 has a docking part 21 and a board end fixing part 22 that can be fixed to the circuit board. An elastic socket 211 is arranged on the docking part 21, and a contact spring piece 24 is arranged in the elastic socket 211; the male terminal 1 has a mateable insertion part 11 and a wire end fixing part 13 for fixing the wire 3; the mateable insertion part 11 is inserted into the elastic socket 211 and elastically abuts against the contact spring piece 24, so that the male terminal 1 is docked with the female terminal 2 to achieve circuit conduction.
[0036] The adapter terminal provided by the present utility model is a high-voltage and high-current adapter terminal that can adapt to high-current ultrasonic welding, and can solve the problem of yield failure of the contact spring piece 24. Specifically: The female terminal 2 with an elastic socket 211 is used as a board-end connector to connect to a circuit board or a copper bar, and the male terminal 1 is used as a wire-end connector to fix the wire 3. Since the contact spring piece 24 is arranged on the board-end connector and the wire 3 is fixed on the wire-end connector with a mating insertion part 11, therefore, during the process of welding the wire 3 to the wire-end connector, it will not cause vibration impact on the contact spring piece 24, avoiding the risk of yield failure or fracture of the contact spring piece 24 due to the fixed connection of the wire 3, thereby ensuring the reliability and firmness of the elastic clamping of the contact spring piece 24 and ensuring the reliability of circuit signal transmission.
[0037] Since the female terminal 2 has many components, for example, the female terminal 2 includes a first substrate, a second substrate protective sleeve 23 and two contact spring pieces 24. The fitting part of the first substrate and the second substrate is fixed together, which is the board-end fixing part 22. The part where the first substrate and the second substrate form the elastic socket 211 is the docking part 21. Two opposite contact spring pieces 24 need to be arranged in the elastic socket 211. The protective sleeve 23 fits on the two outer surfaces of the docking part 21 and is sleeved on the board-end fixing part 22 to protect the elastic socket 211 and can improve the clamping force of the elastic socket 211; while the male terminal 1 can be a whole piece of plate, with a simple structure. If the wire 3 is fixed on the female terminal 2, when the wire outlet angle changes, multiple components of the female terminal 2 need to change positions or directions to adapt to the wire 3 with different wire outlet angles, resulting in high change costs and being time-consuming and laborious; while in the present utility model, the wire 3 is fixed on the male terminal 1. When the wire outlet mode of the wire 3 needs to be changed, only the male terminal 1 needs to be changed, greatly reducing the number of components that need to be changed, thereby reducing the development cost and ensuring the stability and safety of the product.
[0038] Therefore, by fixing the wire 3 on the male terminal 1, the problem of high product change cost and being time-consuming and laborious can also be solved.
[0039] Furthermore, since the wire 3 is fixed on the male terminal 1 in the present application, the volume of the female terminal 2 and the wire-end connector can also be reduced, reducing the space occupied by the connector, and solving the problem of large space occupied by the existing connector to a certain extent.
[0040] In order to cooperate with the fixing of the female terminal 2 to the circuit board or the copper bar, a fastening nut 221 for screwing a bolt is provided on the board-end fixing part 22.
[0041] In some embodiments, such as Figure 5 and Figure 6As shown, the male terminal 1 further has a bending portion 12, and the mating insertion portion 11 and the wire end fixing portion 13 are respectively disposed on opposite sides of the bending portion 12. The mating insertion portion 11 and the wire end fixing portion 13 are offset along the insertion direction and are parallel to each other to form a hierarchical arrangement. The male terminal 1 is a whole plate, and after being bent, the mating insertion portion 11 and the wire end fixing portion 13 at different levels are formed, which is beneficial to reducing the space waste caused by the welding and stacking of the wires 3 and realizing the reasonable layout of the male terminal 1 within a limited space. For example, when the male terminal 1 is a flat plate, after the wire 3 is fixed to the wire end fixing portion 13, it will be much higher than the mating insertion portion 11, and the overlapping length of the wire 3 and the female terminal 2 on the projection plane perpendicular to the insertion direction is short, increasing the overall occupied space and making it impossible to be arranged within the limited space of the vehicle. When the wire end fixing portion 13 and the mating insertion portion 11 are arranged in a stepped hierarchical manner, with the wire center line 31 as the symmetry axis, the overlapping dimension of the wire 3 and the female terminal 2 on the projection plane increases. Specifically, the overlapping dimensions above and below the wire center line 31 with the female terminal 2 are the same. Since the wire center line 31 coincides with the mating center line of the mating insertion portion 11, and the mating center line of the mating insertion portion 11 coincides with the docking center line of the docking portion 21 of the female terminal 2, therefore, when the wire 3 is fixed to the male terminal 1, the overall occupied space volume can be shortened, thus facilitating the arrangement within a limited space.
[0042] This application takes Figure 5 and Figure 6 the up and down directions shown as an example to further illustrate the structures of the male terminal 1 and the female terminal 2. Specifically, the upper surface of the wire end fixing portion 13 is a welding plane 131 for welding the wire 3. When welding, wires 3 with different wire diameters can be selected according to needs, and the welding height can be adjusted according to needs. Among them, limiting protrusions 212 for restricting the mating insertion portion 11 are provided on two opposite surfaces of the elastic socket 211. The limiting protrusions 212 enclose a quadrilateral structure. No matter in which direction the male terminal 1 is inserted, it can prevent overpressure of the contact protrusion 243 when the mating insertion portion 11 is inserted, and reduce the yield deformation of the contact spring caused by overpressure.
[0043] In some embodiments, as Figure 5 and Figure 6 shown, a height difference is formed between the wire end fixing portion 13 and the mating insertion portion 11. The height difference can make the center line of the wire 3 fixed to the wire end fixing portion 13 coincide with the mating center line of the mating insertion portion 11. As previously stated, the coincidence of the wire center line 31 and the mating center line is beneficial in that it can reduce the space volume occupied by the product after connecting the wire 3 and facilitate the reasonable layout within a limited space.
[0044] Moreover, by placing the mating center of the male terminal 1 and the center line of the wire 31 on the same horizontal line, it is possible to prevent the welded end of the wire 3 from exceeding the upper surface of the mating insertion part 11. Since the welded end of the wire 3 needs to be protected by a plastic protective shell after welding, and the welded end of the wire 3 is not higher than the upper surface of the mating insertion part 11, it is also convenient for the installation and sealing of the protective shell, thus ensuring the reliability of the seal after the wire 3 is fixed.
[0045] Since there are two elastically clampable contact reeds 24 arranged in the elastic socket 211 of the female terminal 2, and the contact reeds 24 need to clamp the male terminal 1 stably and reliably, the contact reeds 24 have relatively large rigidity. When the mating insertion part 11 is inserted into the elastic socket 211, it will be subjected to the instantaneous resistance of the contact reeds 24, and a relatively large force is required to insert the male terminal 1 in place. Therefore, in order to reduce the instantaneous insertion force without damaging the elastic clamping force of the contact reeds 24, the present application adopts the method of setting an avoidance notch 111 to improve the problem of large instantaneous insertion force.
[0046] See Figure 5 As shown, in some embodiments, an avoidance notch 111 for weakening the insertion resistance during insertion is provided on the mating insertion part 11. When the mating insertion part 11 is inserted into the elastic socket 211, the provided avoidance notch 111 will not form a pressing force on the contact reed 24, thereby being able to reduce the instantaneous resistance received by the male terminal 1 during insertion. And when the mating insertion part 11 is inserted into the elastic socket 211, the contact part of the contact reed 24 and the mating insertion part 11 can avoid the avoidance notch 111, thereby ensuring the firmness and stability after the male terminal 1 and the female terminal 2 are mated.
[0047] Optionally, avoidance notches 111 are provided on both the upper and lower abutting surfaces of the mating insertion part 11 that are opposite to each other up and down.
[0048] Furthermore, the upper and lower avoidance notches 111 can be symmetrically arranged up and down or can be offset. Among them, the avoidance notch 111 can be set at the corner or the middle part of the edge of the mating insertion part 11, or can be biased to the left or right of the mating insertion part 11, without limitation.
[0049] In some embodiments, such as Figure 5As shown, the avoidance notch 111 is provided at the edge of the mating insertion portion 11 closer to the female terminal 2 in the insertion direction. When the mating insertion portion 11 is inserted into the elastic socket 211, the avoidance notch 111 enters the elastic socket 211 first. Due to the avoidance of the contact spring piece 24 by the avoidance notch 111, that is, it will not press against the contact spring piece 24, or slightly press and deform the contact spring piece 24, thereby reducing the instantaneous maximum insertion force, reducing the difficulty of inserting the male terminal 1. At the same time, since the avoidance notch 111 is only provided at the edge of the mating insertion portion 11 of the male terminal 1, after the mating insertion portion 11 is completely inserted into the elastic socket 211, the contact spring piece 24 will avoid the avoidance notch 111, ensuring that the upper and lower contact surfaces of the contact spring piece 24 and the male terminal 1 are effectively and well contacted, ensuring the firmness and stability of the butt joint between the male terminal 1 and the female terminal 2, and thus ensuring the reliable transmission of electrical signals.
[0050] Currently, when the wire-end connector and the board-end connector are assembled in butt joint, if no guiding and aligning device is provided on the wire-end connector and the board-end connector, it may cause the male terminal of the wire-end connector to be unable to accurately insert into the docking cavity of the board-end connector or the insertion angle is too large, resulting in the problem of oblique insertion when the wire-end connector and the board-end connector are assembled in butt joint, which is likely to cause the terminals of the board-end connector to be squeezed and deformed or the terminals to be bent and sunken. This situation not only increases the docking time of the wire-end connector and the board-end connector, but also may damage the wire-end connector or the board-end connector. And in this application, by setting the avoidance notch 111, the instantaneous maximum insertion force during the insertion of the male terminal 1 is reduced, the risk of damage to the male terminal 1 and the female terminal 2 can be avoided, and the risk that the male terminal 1 will become loose after several insertions and withdrawals, and it is easy to cause poor contact due to insufficient tightness and affect the use can also be reduced.
[0051] In order to reduce the difficulty of inserting the male terminal 1 and reduce the instantaneous insertion resistance, guiding inclined surfaces are provided on both the upper and lower sides of the edge of the mating insertion portion 11 closer to the female terminal 2. In this way, the thickness of the edge of the mating insertion portion 11 is thinned by the guiding inclined surfaces, which is also beneficial for the mating insertion portion 11 to be inserted between the two contact spring pieces 24.
[0052] In some embodiments, as Figure 5 shown, a mating hole 121 for fixing is provided on the bending portion 12. The mating hole 121 is provided on the bending portion 12 of the male terminal 1 to facilitate the fixing and limiting of the male terminal 1 with the surrounding adapting structures. For example, if the male terminal 1 is installed on the vehicle body sheet metal, a plug pin that is inserted into the mating hole 121 is provided on the vehicle body sheet metal to limit and fix the installation position of the male terminal 1.
[0053] Optionally, one or two mating holes 121 are provided on the bending portion 12. Setting two mating holes 121 can insert two plug pins through the principle of two-point positioning to achieve two-dimensional limiting of the male terminal 1.
[0054] The contact spring piece 24 is generally fixed in the elastic socket 211 by riveting with a rivet 213. Therefore, one end of the contact spring piece 24 is fixed and the other end can extend under the pressing of the mating insertion part 11. The integral contact spring piece 24 has a large elastic force and is not easy to insert. In this application, the contact spring piece 24 is optimized and improved.
[0055] In some embodiments, such as Figure 11 and Figure 12 as shown, the contact spring piece 24 includes a spring piece fixing part 241 and a comb-shaped spring piece 242 integrally connected to the spring piece fixing part 241. The comb-shaped spring pieces 242 are arranged in a comb shape. The free end of the contact spring piece 24 is divided into a plurality of comb-shaped spring pieces 242. Compared with the integral contact spring piece 24, each comb-shaped spring piece 242 can independently extend under pressing, reducing the rigidity of the contact spring piece 24. While ensuring the forward force when the contacts of the contact spring piece 24 are in contact, it reduces the risk of excessive insertion force during oblique insertion damaging the male terminal 1, realizing the stability of the connection between the terminals. Among them, the spring piece fixing part 241 is provided with a row of riveting holes 244 for riveting with the rivet 213.
[0056] In some embodiments, such as Figure 11 and Figure 12 as shown, a plurality of contact protrusions 243 are arranged on each comb-shaped spring piece 242 along the insertion direction. The contact protrusions 243 elastically abut against the mating insertion part 11. Reliable elastic contact can be formed between the plurality of contact protrusions 243 and the mating insertion part 11, ensuring the firmness and stable and reliable signal transmission after the male terminal 1 is inserted. Specifically, two contact protrusions 243 can be obtained by designing a bend for each comb-shaped spring piece 242. By setting two consecutive bends, three contact protrusions 243 can be obtained. And by bending the comb-shaped spring piece 242, its rigidity and elasticity can also be improved, enhancing the strength of elastic clamping.
[0057] In some embodiments, such as Figure 11 and Figure 12 as shown, a narrow slit extending along the insertion direction is provided on each comb-shaped spring piece 242. By providing a narrow slit for each comb-shaped spring piece 242, the rigidity of the comb-shaped spring piece 242 can be weakened, facilitating the insertion of the male terminal 1 into the female terminal 2 without damaging the female terminal 2 and the male terminal 1. Among them, the width of the provided narrow slit is kept consistent with the width between the comb-shaped spring pieces 242.
[0058] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0059] Based on the same inventive concept, the embodiments of this application also provide a connector adapted with the transfer terminal.
[0060] For the connector provided by the embodiment of the present utility model, since the wire-end connector for fixing the wire 3 on the male terminal 1 is adopted, and the contact spring piece 24 is arranged on the female terminal 2, the vibration influence on the contact spring piece 24 during the welding and fixing of the wire 3 is avoided, and the risk of the contact spring piece 24 yielding and failing or breaking is avoided. Thereby, the reliability and firmness of the elastic clamping of the contact spring piece 24 are ensured, and the reliability of the circuit signal transmission is ensured.
[0061] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A transfer terminal, characterized in that: Comprising: A female terminal (2), having a docking portion (21) and a board-end fixing portion (22) that can be fixed to a circuit board. An elastic socket (211) is provided on the docking portion (21), and a contact spring piece (24) is provided inside the elastic socket (211); and A male terminal (1), having a mating plugging portion (11) and a wire-end fixing portion (13) for fixing a wire (3); the mating plugging portion (11) is plugged into the elastic socket (211) and elastically abuts against the contact spring piece (24), so that the male terminal (1) is docked with the female terminal (2).
2. The adapter terminal according to claim 1, wherein The male terminal (1) further has a bending portion (12), the mating plugging portion (11) and the wire-end fixing portion (13) are disposed on opposite sides of the bending portion (12), and the mating plugging portion (11) and the wire-end fixing portion (13) are offset and parallel to each other along the plugging direction to form a hierarchical arrangement.
3. The adapter terminal according to claim 2, wherein, A height difference is formed between the wire-end fixing portion (13) and the mating plugging portion (11), and the height difference enables the center line (31) of the wire fixed to the wire-end fixing portion (13) to coincide with the mating center line of the mating plugging portion (11).
4. The adapter terminal according to claim 1, characterized in that A relief notch (111) for weakening the plugging resistance during plugging is provided on the mating plugging portion (11).
5. The adapter terminal according to claim 4, wherein The relief notch (111) is provided at the edge of the mating plugging portion (11) close to the female terminal (2) in the plugging direction.
6. The adapter terminal according to claim 2, wherein A mating hole (121) for fixing is provided on the bending portion (12).
7. The adapter terminal according to any one of claims 1-6, characterized in that, The contact spring piece (24) includes a spring-piece fixing portion (241) and a comb-shaped spring piece (242) integrally connected to the spring-piece fixing portion (241), and the comb-shaped spring pieces (242) are arranged in a comb shape.
8. The adapter terminal according to claim 7, characterized in that A plurality of contact protrusions (243) are provided on each comb-shaped spring piece (242) along the plugging direction, and the contact protrusions (243) elastically abut against the mating plugging portion (11).
9. The adapter terminal according to claim 8, characterized in that, A narrow slit extending along the plugging direction is provided on each comb-shaped spring piece (242).
10. A connector, characterized in that, Comprising the adapter terminal according to any one of claims 1-9.