A patch-type female end structure

Abstract

This utility model relates to the field of electronic connector technology, and in particular discloses a surface-mount female terminal structure, including a female terminal housing and a female terminal disposed on the female terminal housing. The female terminal has a plug-in portion and a soldering portion for soldering the female terminal to a circuit board. The plug-in portion forms a limiting abutment with the inner wall of the female terminal housing. The female terminal housing has a U-shaped guide port for guiding the male terminal to plug into and conduct with the plug-in portion. This surface-mount female terminal structure ensures the stability of terminal installation through the limiting abutment between the plug-in portion and the inner wall of the housing; the soldering portion enables reliable soldering to the circuit board; the U-shaped guide port accurately guides the male terminal to plug in, reducing assembly difficulty and improving efficiency. The overall structure is compact, adapting to the miniaturization requirements of electronic devices, and ensuring stable and reliable electrical connections.

Description

Technical Field

[0001] This utility model relates to the field of electronic connector technology, and in particular discloses a surface mount female terminal structure. Background Technology

[0002] With the current trend towards miniaturization and integration of electronic devices, traditional surface-mount female terminal structures have revealed numerous problems in use. On the one hand, the connection between some female terminals and the housing is not robust enough. Under vibration or external forces generated during device operation, the terminals are prone to loosening and detachment, leading to electrical connection failure. Furthermore, unreasonable solder joint design makes it difficult to ensure reliable soldering to the circuit board, affecting mechanical strength and electrical performance. On the other hand, the assembly process between male and female terminals lacks effective guidance, resulting in large insertion deviations and low assembly efficiency. Errors are prone to occur in both manual and automated assembly, increasing production costs. In addition, regarding electrical connections, existing female terminals have a simple contact structure with a small contact area and high resistance. In high-frequency signal transmission or high-current scenarios, this easily leads to signal loss and overheating, and cannot effectively compensate for dimensional tolerances, resulting in poor connection reliability. Therefore, there is an urgent need for a surface-mount female terminal structure that is structurally robust, easy to assemble, and provides excellent electrical connections to meet market demands. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a patch-type female end structure.

[0004] To achieve the above objectives, this utility model provides a patch-type female terminal structure, including a female terminal housing and a female terminal disposed on the female terminal housing. The female terminal is provided with a plug-in portion and a soldering portion for soldering the female terminal onto a circuit board. The plug-in portion forms a limiting abutment with the inner wall of the female terminal housing. The female terminal housing is provided with a U-shaped guide port for guiding the male terminal to be plugged into and connected with the plug-in portion.

[0005] Furthermore, the soldering part is at least one L-shaped pin, the first arm of the L-shaped pin is integrally formed with the female terminal, and the second arm of the L-shaped pin is bent from the first arm and the bottom surface of the second arm is attached to the surface of the circuit board.

[0006] Furthermore, the U-shaped guide port has a transitional V-shaped opening and a linear guide, and the male terminal is inserted into the linear guide through the V-shaped opening to connect with the plug-in part.

[0007] Furthermore, the V-shaped opening has a first guiding arc surface, a guiding slope, and a second guiding arc surface that are sequentially connected, and the second guiding arc surface is connected to the linear guiding part.

[0008] Furthermore, the female terminal is provided with a trapezoidal snap-fit ​​groove, which snaps into the U-shaped guide opening of the female terminal housing and forms a limiting fit; the trapezoidal snap-fit ​​groove includes a first trapezoidal surface and a second trapezoidal surface that are connected in transition, the inclination angle of the first trapezoidal surface is smaller than the inclination angle of the second trapezoidal surface; the first trapezoidal surface is used to guide the female terminal to be inserted into the female terminal housing during assembly, and the second trapezoidal surface abuts against the inner wall of the U-shaped guide opening to achieve locking.

[0009] Furthermore, the female end housing is provided with a plug-in positioning part, which is used for plugging and positioning in the plug-in hole of the external circuit board.

[0010] Furthermore, the insertion part is provided with two symmetrical elastic arms; the elastic arms include an arc-shaped abutment part, a beveled guide part for guiding the male terminal, an abutment locking part for engaging with the male terminal, and a bending elastic part connected in sequence; the arc-shaped abutment part is connected to the side wall of the female terminal and is used to abut and fix with the female terminal housing, the beveled guide part is used to guide the male terminal to slide into the abutment locking part, the male terminal is clamped and connected by the two symmetrical abutment locking parts, and there is a gap between the bending elastic part and the side wall of the female terminal.

[0011] Furthermore, the female end housing is provided with a first positioning groove for positioning the male end terminal and a second positioning groove for positioning the female end terminal. The first positioning groove is located on the side of the U-shaped guide opening, and the second positioning groove abuts against the welding part.

[0012] Furthermore, the female end housing is provided with an abutting bend, which abuts and is fixed to the arc-shaped abutting part and the inclined guide part respectively.

[0013] Furthermore, the elastic arm has a hollowed-out center, and two conductive contact strips are formed on both sides of the hollowed-out center. The conductive contact strips are used to elastically abut against the male terminal to form an electrical connection.

[0014] The beneficial effects of this utility model are:

[0015] (1) Stable and reliable structure: The terminal is accurately positioned in the housing by limiting the connection between the female terminal and the housing, locking the trapezoidal buckle groove, and reinforcing the elastic arm by the connection bend, so as to prevent loosening and falling off; the L-shaped pin is tightly welded to the circuit board, and combined with the flexible fixing method of the plug-in positioning part, the mechanical strength is enhanced, and the equipment is guaranteed to operate stably under vibration and external force environment.

[0016] (2) Efficient and convenient assembly: The U-shaped guide port and its multi-level guiding structure guide from the arc surface to the linear positioning, greatly reducing the difficulty of inserting the male terminal and reducing assembly errors; the positioning groove accurately constrains the terminal position, and can quickly complete the installation whether it is manual operation or automated production line, significantly improving production efficiency.

[0017] (3) Excellent electrical connection: The flexible arm conductive contact strip achieves multi-point elastic contact, expands the contact area, reduces resistance, and improves the stability of current transmission; at the same time, the flexible design can compensate for dimensional tolerances, ensuring that the electrical connection remains stable and reliable in harsh scenarios such as high-frequency signal transmission and high current, reducing the risk of equipment failure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a patch-type female end structure according to the present invention;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] The reference numerals in the attached drawings include: 1. Female end housing; 11. U-shaped guide port; 12. V-shaped opening; 121. First guide arc surface; 122. Guide slope; 123. Second guide arc surface; 13. Linear guide part; 14. Insertion positioning part; 15. First positioning groove; 16. Second positioning groove; 17. Abutment bend; 2. Female end terminal; 21. Insertion part; 22. Welding part; 23. Trapezoidal snap-fit ​​groove; 231. First trapezoidal surface; 232. Second trapezoidal surface; 24. Elastic arm; 241. Arc-shaped abutment part; 242. Sloping guide part; 243. Abutment locking part; 244. Bending elastic part; 25. Conductive contact strip. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] Please see Figures 1 to 3 As shown, a patch-type female terminal structure of this utility model includes a female terminal housing 1 and a female terminal 2 disposed on the female terminal housing 1. The female terminal 2 is provided with a plug-in part 21 and a welding part 22 for welding the female terminal 2 onto a circuit board. The plug-in part 21 forms a limiting abutment with the inner wall of the female terminal housing 1. The female terminal housing 1 is provided with a U-shaped guide port 11, which is used to guide the male terminal to plug into and conduct with the plug-in part 21.

[0024] In practical use, the combination design of the female housing 1 and the female terminal 2 achieves a stable electrical connection and mechanical fixation. The insertion part 21 of the female terminal 2 forms a limiting abutment with the inner wall of the female housing 1. This design effectively avoids the terminal from shaking within the housing, ensuring the accuracy and stability of the position of the female terminal 2 during subsequent insertion with the male terminal and during equipment operation, reducing faults such as poor contact caused by loose terminals. The setting of the soldering part 22 allows the female terminal 2 to be reliably soldered onto the circuit board, providing a stable electrical connection foundation for the entire circuit system.

[0025] Meanwhile, the U-shaped guide port 11 of the female housing 1 provides a clear and accurate insertion path for the mating male terminal, reducing the difficulty and risk of deviation when inserting the male terminal and greatly improving assembly efficiency. In practical applications, whether in automated assembly lines or manual assembly scenarios, the U-shaped guide port 11 can effectively reduce assembly errors caused by improper operation, improving product qualification rate and production efficiency. Furthermore, this compact design aligns with the miniaturization and integration trends of modern electronic products, enabling efficient and stable electrical connections within limited space, thus possessing broad applicability and market promotion value.

[0026] Specifically, the soldering part 22 is at least one L-shaped pin. The first arm of the L-shaped pin is integrally formed with the female terminal 2, and the second arm of the L-shaped pin is bent from the first arm, with the bottom surface of the second arm adhering to the surface of the circuit board. The second arm forms an electrical connection with the pads on the surface of the circuit board through a reflow soldering process.

[0027] In practical use, firstly, the first arm of the L-shaped pin is integrally formed with the female terminal 2, ensuring the structural strength and electrical conductivity between the solder part 22 and the terminal body, avoiding breakage or poor contact due to insufficient strength of the connection. Secondly, the second arm is perpendicular to the first arm and its bottom surface is flush with the circuit board surface. This design allows the L-shaped pin to make large-area contact with the solder pads on the circuit board surface, forming a strong and reliable electrical connection through reflow soldering. This large-area contact not only enhances the mechanical strength of the solder joint, enabling it to withstand certain external forces and vibrations, but also reduces contact resistance, improving the stability and efficiency of current transmission. In practical applications, especially in equipment with high electrical performance requirements, such as communication equipment and precision instruments, a stable electrical connection can effectively reduce signal loss and interference, ensuring the normal operation of the equipment. Furthermore, the L-shaped pin design facilitates layout and installation on the circuit board, flexibly adapting to circuit boards of different sizes and shapes, improving the product's versatility and scalability.

[0028] Specifically, the U-shaped guide port 11 has a transitional V-shaped opening 12 and a linear guide 13. The male terminal is inserted into the linear guide 13 through the V-shaped opening 12 and connected to the plug-in part 21.

[0029] In practical use, the U-shaped guide port 11 has a transitional V-shaped opening 12 and a linear guide 13. This structural design greatly optimizes the insertion process of the male terminal. The V-shaped opening 12 serves as the starting area for male terminal insertion, and its special structure effectively guides the male terminal smoothly into the guide path. The linear guide 13 provides precise and stable linear guidance after the male terminal enters the V-shaped opening 12, ensuring that the male terminal can accurately insert itself into the insertion part 21 of the female terminal 2 along a preset path.

[0030] In actual assembly, this clear and defined guiding structure significantly reduces the assembly difficulty for operators, improving accuracy and efficiency even in automated assembly equipment. Simultaneously, the transitional connection design between the V-shaped opening 12 and the linear guide 13 ensures more even force distribution on the male terminal during insertion, reducing the risk of terminal damage due to insertion angle deviations or uneven force, and extending terminal lifespan. Furthermore, this structural design effectively prevents male terminals from shifting or jamming during insertion, ensuring the reliability and stability of the connection.

[0031] Specifically, the V-shaped opening 12 has a first guiding arc surface 121, a guiding inclined surface 122 and a second guiding arc surface 123 that are connected in sequence, and the second guiding arc surface 123 is connected to the linear guiding part 13 in a transitional manner.

[0032] In actual use, the V-shaped opening 12 is provided with a first guiding arc surface 121, a guiding slope 122, and a second guiding arc surface 123 that are sequentially connected. The second guiding arc surface 123 is also connected to the linear guiding part 13. This refined design further improves the guiding performance of the U-shaped guide port 11. The first guiding arc surface 121 can guide the male terminal into the guide port with a gentle arc, reducing resistance and impact during insertion and protecting the male terminal and female housing 1 from damage. The guiding slope 122, after the male terminal has entered to a certain extent, further guides it to the correct direction through its inclined surface, providing strong support for subsequent accurate insertion.

[0033] The transition connection between the second guiding arc surface 123 and the linear guiding part 13 allows the male terminal to smoothly transition from the V-shaped opening 12 to the linear guiding part 13, achieving seamless connection and avoiding insertion jamming or misalignment caused by structural abrupt changes. In practical use, this multi-level guiding structure can adapt to male terminals of different shapes and sizes, improving product compatibility. Simultaneously, its excellent guiding performance effectively reduces the scrap rate during assembly, improves production efficiency, enhances the product's adaptability in complex environments, and ensures connection reliability.

[0034] Specifically, the female terminal 2 is provided with a trapezoidal snap-fit ​​groove 23, which snaps into the U-shaped guide opening 11 of the female terminal housing 1 and forms a limiting fit; the trapezoidal snap-fit ​​groove 23 includes a first trapezoidal surface 231 and a second trapezoidal surface 232 that are connected in transition, the inclination angle of the first trapezoidal surface 231 is smaller than the inclination angle of the second trapezoidal surface 232; the first trapezoidal surface 231 is used to guide the female terminal 2 to be inserted into the female terminal housing 1 during assembly, and the second trapezoidal surface 232 abuts against the inner wall of the U-shaped guide opening 11 to achieve locking.

[0035] In actual use, the trapezoidal snap-fit ​​groove 23 on the female terminal 2 and the limiting fit design of the U-shaped guide opening 11 on the female terminal housing 1 provide a reliable locking mechanism for the entire patch-type female terminal structure. The first trapezoidal surface 231 of the trapezoidal snap-fit ​​groove 23 has a small inclination angle, which can easily guide the female terminal 2 into the female terminal housing 1 during assembly, reducing assembly difficulty and improving assembly efficiency. The second trapezoidal surface 232 has a larger inclination angle. When the female terminal 2 is inserted into place, the second trapezoidal surface 232 can tightly abut against the inner wall of the U-shaped guide opening 11 to form a firm locking effect, preventing the female terminal 2 from loosening or falling off due to vibration, external pulling, or other factors during use.

[0036] This locking mechanism is of significant value in applications requiring extremely high connection stability, such as automotive electronics and aerospace. It ensures that electrical connections remain stable and reliable even in harsh environments, preventing equipment malfunctions or safety hazards caused by loose connections. Furthermore, the trapezoidal locking slot 23 facilitates disassembly and maintenance. When equipment maintenance or component replacement is required, the female terminal 2 can be easily removed from the housing without damaging the terminal or housing, improving product maintainability.

[0037] Specifically, the female end housing 1 is provided with a plug-in positioning part 14, which is used to plug and position itself in the plug-in hole of the external circuit board.

[0038] In practical use, during installation, the insertion positioning part 14 can accurately insert into the insertion hole of the external circuit board, achieving rapid and accurate positioning. This avoids problems such as poor contact and unstable connection caused by installation deviations, significantly improving installation efficiency and assembly accuracy. Secondly, this structural design enhances the reliability of the connection between the female housing 1 and the circuit board. During product operation, it can effectively resist external forces such as vibration and impact, preventing signal transmission interruption or electrical connection failure due to loose connections, ensuring long-term stable operation of the equipment. Furthermore, the standardized mating method between the insertion positioning part 14 and the insertion hole gives the product good versatility and interchangeability, facilitating later maintenance and replacement, reducing maintenance costs and time costs. Whether in the production assembly stage or in actual use, the insertion positioning part 14 of the female housing 1 demonstrates indispensable practical value.

[0039] Specifically, the insertion part 21 is provided with two symmetrical elastic arms 24; the elastic arm 24 includes an arc-shaped abutment part 241, a beveled guide part 242 for guiding the male terminal, an abutment locking part 243 for inserting and engaging with the male terminal, and a bending elastic part 244 connected in sequence; the arc-shaped abutment part 241 is connected to the side wall of the female terminal 2 and is used to abut and fix with the female housing 1, the beveled guide part 242 is used to guide the male terminal to slide into the abutment locking part 243, the male terminal is clamped and connected by the two symmetrical abutment locking parts 243, and there is a gap between the bending elastic part 244 and the side wall of the female terminal 2.

[0040] In actual use, the arc-shaped abutment portion 241 abuts and is fixed to the female end housing 1, enhancing the stability and support of the elastic arm 24 and ensuring that the elastic arm 24 will not undergo excessive deformation or displacement during the insertion and removal of the male end terminal. The inclined guide portion 242 can effectively guide the male end terminal to slide smoothly into the abutment locking portion 243, reducing insertion resistance and improving assembly efficiency. The abutment locking portion 243, through its symmetrical arrangement, can tightly clamp the male end terminal from both sides, forming a firm clamping and insertion effect, preventing the male end terminal from loosening or falling off during use, and ensuring the reliability of the electrical connection. The gap between the bent elastic portion 244 and the side wall of the female end terminal 2 provides sufficient elastic deformation space for the elastic arm 24, enabling it to adapt to male end terminals of different sizes and improving product compatibility. In addition, the two conductive contact strips 25 formed by hollowing out the middle of the elastic arm 24 can achieve multi-point elastic abutment with the male end terminal, increasing the conductive contact area, reducing contact resistance, improving the stability and efficiency of current transmission, and meeting the needs of modern electronic equipment for efficient electrical connections.

[0041] Specifically, the female end housing 1 is provided with a first positioning groove 15 for positioning the male end terminal and a second positioning groove 16 for positioning the female end terminal 2. The first positioning groove 15 is located on the side of the U-shaped guide port 11, and the second positioning groove 16 abuts against the welding part 22.

[0042] In actual use, the first positioning groove 15 is located on the side of the U-shaped guide port 11. It accurately restricts the position of the male terminal when it is inserted, ensuring that the male terminal is inserted along the correct path into the female terminal 2's insertion part 21, avoiding problems such as poor contact or inability to insert due to insertion position deviation. The second positioning groove 16 abuts against the welding part 22. When the female terminal 2 is welded to the circuit board, it accurately positions the female terminal 2, ensuring the accuracy of the welding position and improving welding quality and reliability. The design of these two positioning grooves allows for quick and accurate installation of the female terminal 2 and male terminal during assembly, whether manually or automatically, reducing assembly errors and scrap rates, and improving production efficiency. Simultaneously, precise positioning ensures the stability of the electrical connection, reduces the risk of equipment failure due to assembly errors, and enhances the product's competitiveness in the market.

[0043] Specifically, the female end housing 1 is provided with an abutting bend 17, which abuts and is fixed to the arc-shaped abutting part 241 and the inclined guide part 242 respectively.

[0044] In actual use, the abutment bend 17 of the female end housing 1 abuts and is fixed to the arc-shaped abutment portion 241 and the inclined guide portion 242 of the elastic arm 24, further enhancing the structural stability of the elastic arm 24. During the insertion and removal of the male end terminal, the elastic arm 24 is subjected to a certain external force. The presence of the abutment bend 17 provides additional support and constraint for the elastic arm 24, preventing excessive deformation or displacement and ensuring that it always maintains a good working condition. This structural design can effectively extend the service life of the elastic arm 24 and improve the reliability and durability of the product. At the same time, the tight fit between the abutment bend 17 and the elastic arm 24 can also reduce the vibration and noise of the elastic arm 24 during operation, improving the user experience. In some applications with high requirements for environmental noise and equipment stability, such as precision instruments and communication equipment, this design can meet higher performance requirements and improve the market adaptability and competitiveness of the product.

[0045] Specifically, the elastic arm 24 is hollowed out in the middle, and two conductive contact strips 25 are formed on both sides of the hollowed-out portion. The conductive contact strips 25 are used to elastically abut against the male terminal to form an electrical connection.

[0046] In practical use, the two conductive contacts 25 can achieve multi-point elastic contact with the male terminal, significantly increasing the conductive contact area compared to the traditional single contact method. A larger contact area means lower contact resistance, effectively reducing energy loss and heat generation during current transmission, and improving the stability and efficiency of current transmission. Simultaneously, the elastic design of the conductive contacts 25 can compensate for dimensional tolerances between the male and female terminals 2, ensuring good electrical contact even with certain dimensional deviations during manufacturing. This design has significant application value in applications with extremely high electrical performance requirements, such as high-frequency signal transmission and high-current equipment. It ensures stable signal transmission and normal equipment operation, reduces equipment failures and performance degradation caused by poor electrical connections, and improves product reliability and stability.

[0047] In this embodiment, the width of the insertion portion of the male terminal is greater than the minimum spacing of the insertion portion 21 and less than the minimum opening spacing of the U-shaped guide port 11. After the male terminal is inserted into the U-shaped guide port 11, it is inserted into the insertion portion 21.

[0048] In actual use, the width of the male terminal insertion part is greater than the minimum spacing of the insertion parts 21, ensuring that the male and female terminals can fit tightly together after insertion, forming a solid mechanical connection and stable electrical contact. This avoids poor contact or loosening due to excessive gaps, ensuring the stability of current and signal transmission and meeting the operational requirements of the equipment under complex working conditions. Simultaneously, the width of the insertion part is less than the minimum opening spacing of the U-shaped guide 11, ensuring that the male terminal can smoothly enter the guide. Utilizing the guiding effect of the U-shaped guide 11, precise positioning and smooth insertion are achieved, reducing assembly difficulty and improving production efficiency. Even in automated assembly scenarios, it effectively reduces assembly errors such as jamming and misalignment caused by size mismatches.

[0049] Furthermore, this size design forms a dual protection mechanism of "guidance first, then tightening". The U-shaped guide port 11 is responsible for accurately guiding the male terminal, while the size limitation of the plug part 21 ensures the reliability of the final connection. This not only enhances the structure's resistance to vibration and external forces, but also effectively prevents the male terminal from accidentally falling off, extending the service life of the connector. It has significant advantages in fields such as electronic equipment and automotive electronics where connection stability is highly required.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A patch female terminal structure characterized by: The device includes a female end housing (1) and a female end terminal (2) disposed on the female end housing (1). The female end terminal (2) is provided with a plug-in part (21) and a welding part (22) for welding the female end terminal (2) onto a circuit board. The plug-in part (21) forms a limiting abutment with the inner wall of the female end housing (1). The female end housing (1) is provided with a U-shaped guide port (11) for guiding the male end terminal to be plugged into and connected with the plug-in part (21).

2. The patch-like female terminal structure according to claim 1, characterized by: The welding part (22) is at least one L-shaped pin. The first arm of the L-shaped pin is integrally formed with the female terminal (2). The second arm of the L-shaped pin is bent from the first arm and the bottom surface of the second arm is attached to the surface of the circuit board.

3. The patch-like female terminal structure according to claim 1, characterized by: The U-shaped guide port (11) has a transitional V-shaped opening (12) and a linear guide (13). The male terminal is inserted into the linear guide (13) through the V-shaped opening (12) and connected to the plug-in part (21).

4. The patch-like female terminal structure according to claim 3, wherein: The V-shaped opening (12) has a first guiding arc surface (121), a guiding slope (122) and a second guiding arc surface (123) that are connected in sequence, and the second guiding arc surface (123) is connected to the linear guiding part (13).

5. The patch-like female terminal structure according to claim 1, wherein: The female terminal (2) is provided with a trapezoidal snap-fit ​​groove (23), which snaps into the U-shaped guide opening (11) of the female end housing (1) and forms a limiting fit; the trapezoidal snap-fit ​​groove (23) includes a first trapezoidal surface (231) and a second trapezoidal surface (232) that are connected in transition, and the inclination angle of the first trapezoidal surface (231) is smaller than the inclination angle of the second trapezoidal surface (232); the first trapezoidal surface (231) is used to guide the female terminal (2) to be inserted into the female end housing (1) during assembly, and the second trapezoidal surface (232) abuts against the inner wall of the U-shaped guide opening (11) to achieve locking.

6. The patch-like female structure according to claim 1, characterized by: The female end housing (1) is provided with a plug-in positioning part (14), which is used for plugging and positioning in the plug-in hole of the external circuit board.

7. The patch-like female structure according to claim 1, characterized by: The insertion part (21) is provided with two symmetrical elastic arms (24); the elastic arm (24) includes an arc-shaped abutment part (241), a beveled guide part (242) for guiding the male terminal, an abutment locking part (243) for engaging with the male terminal, and a bending elastic part (244) connected in sequence; the arc-shaped abutment part (241) is connected to the side wall of the female terminal (2) and is used to abut and fix with the female housing (1); the beveled guide part (242) is used to guide the male terminal to slide into the abutment locking part (243); the male terminal is clamped and connected by the two symmetrical abutment locking parts (243); and there is a gap between the bending elastic part (244) and the side wall of the female terminal (2).

8. The patch-like female structure according to claim 1, characterized by: The female end housing (1) is provided with a first positioning groove (15) for positioning the male end terminal and a second positioning groove (16) for positioning the female end terminal (2). The first positioning groove (15) is located on the side of the U-shaped guide port (11), and the second positioning groove (16) abuts against the welding part (22).

9. The patch-like female terminal structure according to claim 7, wherein: The female end housing (1) is provided with an abutting bend (17), which abuts and is fixed to the arc-shaped abutting part (241) and the inclined guide part (242) respectively.

10. The patch-like female terminal structure according to claim 7, wherein: The elastic arm (24) is hollowed out in the middle, and two conductive contact strips (25) are formed on both sides of the hollowed-out part. The conductive contact strips (25) are used to elastically abut against the male terminal to form an electrical connection.

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