Female header connector

Abstract

The utility model relates to the field of electric connectors, and discloses a female header connector, which comprises a plastic main body and a pin header, and is characterized in that the pin header comprises a clamping part, a welding part and a bending part of which the two ends are respectively connected with the clamping part and the welding part; a first inserting cavity and a second inserting cavity are formed in the plastic main body, the clamping part is inserted into the first inserting cavity, the welding part is inserted into the second inserting cavity, one end of the welding part penetrates out of the plastic main body, and the bending part abuts against the plastic main body. By arranging the bending part, the clamping part and the welding part are arranged on the same side, so that not only is the arrangement of the whole pin header simpler, but also the requirements of a special connector can be met, and the clamping part and the welding part can be ensured to be inserted and matched with complementary terminals and connected with a circuit board in a limited space; readjustment is not needed when the welding part is connected with the circuit board; by arranging the limiting part, the blocking part can prevent the pin header from popping up, and compared with a traditional clamping groove, the pin header is more practical and stable.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a female connector. Background Technology

[0002] Electrical connectors are widely used in electronics, electrical appliances, and instrumentation. Their function is to act as a bridge connecting interrupted circuits or independent circuits, undertaking the task of transmitting current or signals; or they can be used in conjunction with electrical terminals to form board-to-board connections; they can also be used independently for board-to-board connections. Electrical connectors are widely used in various fields, such as the automotive and electric vehicle industries, and various electronic equipment fields, to connect various electrical components.

[0003] Female header connectors, as a type of electrical connector, are used in conjunction with pin headers to form board-to-board connections, or with electronic wire harness terminals to form board-to-wire connections. Female header connectors consist of a plastic body and pin headers. Conventional pin headers are typically straight or bent. Bent pin headers, depending on the specific connector requirements, are usually bent so that the two ends of the pin are distributed in two directions. Even with straight pin headers, the two ends of the pin extend in the opposite direction, ultimately allowing one end of the pin to be soldered to the circuit board from one side, and the other end to mate with a complementary connector from the other side. While both types of pin headers can be used normally, conventional pin headers cannot be used properly in some special space-constrained connectors where the mating with the complementary connector and the circuit board is located on the same side. In order to fix the terminals to a certain extent, the existing plastic body has a U-shaped groove in it, through which the pin header passes and is blocked in three directions. However, due to the elasticity of the material itself, the pin header will generate heat during use, causing a certain degree of deformation. The existing groove cannot effectively prevent the deformation of the pin header, thus affecting its service life. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a female connector to solve at least one of the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides a female connector comprising a plastic body and a pin header. The pin header includes a clamping part for clamping complementary terminals, a welding part for soldering to a circuit board, and a bending part with both ends connected between the clamping part and the welding part to space the clamping part and the welding part and distribute them in the same direction. The plastic body is provided with a first insertion cavity and a second insertion cavity that are parallel and spaced apart. The clamping part is inserted into the first insertion cavity, the welding part is inserted into the second insertion cavity and one end protrudes out of the plastic body, and the bending part abuts against the plastic body outside the first insertion cavity and the second insertion cavity.

[0006] Furthermore, the bending portion extends along the width direction of the plastic body, and both ends of the bending portion have bending feet. After bending, the bending feet extend in the same direction along an insertion direction parallel to the height direction of the plastic body. The clamping portion and the welding portion are integrally connected to the two bending feet respectively.

[0007] Furthermore, the welding portion includes an extension section extending from a bent foot away from the clamping portion along the insertion direction and a welding section extending from the extension section toward the side away from the bent portion; a limiting portion for restricting the elastic movement of the extension section is formed on the second insertion cavity, the extension section is attached to the second insertion cavity and passes through the limiting portion, and the welding section passes through the plastic body.

[0008] Furthermore, the second insertion cavity has a fitting wall close to one side of the first insertion cavity, and the limiting part includes two limiting blocks disposed on opposite sides of the fitting wall and a limiting groove formed between the two limiting blocks and communicating with the second insertion cavity along the insertion direction. The extension section fits against the fitting wall and one end is riveted into the limiting groove.

[0009] Furthermore, the second insertion cavity also has two side cavity walls that are perpendicular to the bonding wall and adjacent to each other on opposite sides of the bonding wall along the length direction of the plastic body. The two limiting blocks are respectively connected and protrude from the two side cavity walls, and a gap space is formed between the two limiting blocks. The gap space is widened on the side closer to the bonding wall to form the limiting groove. The side of the gap space closer to the limiting groove protrudes relative to the limiting groove to form a stop for blocking the extension section.

[0010] Furthermore, a guide groove that gradually widens toward the side away from the limiting groove is formed on the side of the interval space away from the limiting groove.

[0011] Furthermore, the second insertion cavity extends through both sides of the plastic body along the insertion direction to form a first through-hole and a second through-hole respectively. The bent portion is located outside the first through-hole, and the limiting block is located on the side close to the second through-hole. The second insertion cavity and the guide groove both extend through the plastic body along the width direction of the plastic body toward the side away from the adhesive wall.

[0012] Furthermore, the clamping part includes a connecting part connected to the bending foot and an elastic part extending from the connecting part in a direction away from the bending part. Both the connecting part and the elastic part are inserted into the first insertion cavity, and when the connecting part and the elastic part are inserted into the first insertion cavity, the two sides of the connecting part are tightly fitted with the first insertion cavity.

[0013] Furthermore, the connecting portion has protruding abutment portions on both sides along its width for tightly fitting with the inner walls of the two sides of the first insertion cavity.

[0014] Furthermore, the elastic part includes a first elastic arm and a second elastic arm, the ends of the first elastic arm and the second elastic arm away from the connecting part are arranged at an angle to each other, and there is a clearance space between the first elastic arm and the second elastic arm.

[0015] The female connector of this utility model has at least the following beneficial effects: By setting the bending part, the clamping part and the welding part extend in the same direction to correspond to the arrangement of connectors with special requirements, so that the clamping part and the welding part are on the same side. This not only simplifies the setting of the entire pin header, but also meets the requirements of special connectors. It ensures that the clamping part and the welding part can complete the mating and mating with the complementary terminals and the connection with the circuit board in a limited space, without the need for readjustment when the welding part is connected to the circuit board. By setting the limiting part, the stop can prevent the pin header from popping out, which is more practical and stable than the traditional slot. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the female connector of this utility model;

[0018] Figure 2 for Figure 1 An enlarged view of part A shown;

[0019] Figure 3 This is a structural schematic diagram of the female connector of this utility model from another angle;

[0020] Figure 4 This is a structural schematic diagram of the female connector of this utility model from another angle;

[0021] Figure 5 This is a top sectional view of the female connector of this utility model;

[0022] Figure 6 This is a schematic diagram of the pin header structure of this utility model.

[0023] The meanings of the labels in the attached diagram are as follows:

[0024] Plastic body 1, first insertion cavity 11, main cavity section 111, secondary cavity section 112, second insertion cavity 12, fitting wall 121, side cavity wall 122, first through hole 13, second through hole 14, third through hole 15, fourth through hole 16, guard edge 17, limiting part 18, limiting block 181, limiting groove 182, stop part 183, interval space 184, guide groove 185, pin row 2, clamping part 21, connecting part 211, elastic part 212, first elastic arm 2121, second elastic arm 2122, clamping point 2123, guide slope 2124, abutting part 213, welding part 22, extension section 221, welding section 222, bending part 23, bending foot 231. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Please refer to Figures 1 to 6 The female connector of this utility model includes a plastic body 1 and pin headers 2. The plastic body 1 is used to protect the pin headers 2. The plastic body 1 provides support and insulation at the same time. The pin headers 2 are used to connect to the circuit board and to the complementary terminals, respectively, and are used for the transmission of electrical signals after being powered on.

[0027] In this embodiment, the plastic body 1 is injection molded from an insulating material such as plastic. The plastic body 1 in this embodiment has a cuboid structure, and therefore has length, width, and height. The height direction of the plastic body 1 is defined as the insertion direction, but this is not limited to this embodiment; other three-dimensional structures can also be used to adapt to the required female connector. In this embodiment, the plastic body 1 is provided with parallel and spaced-apart first insertion cavities 11 and second insertion cavities 12. The first insertion cavities 11 and second insertion cavities 12 are respectively used to install two parts of the pin header 2, so as to better fix the pin header 2 while maximizing space utilization through adjustments and devices between the first insertion cavities 11 and second insertion cavities 12. Since this utility model is used to adapt to connectors with special space requirements, its space utilization is limited. Therefore, the first insertion cavities 11 and second insertion cavities 12 are arranged in parallel, so that the mating between the pin header 2 and the complementary terminal and the mating between the pin header 2 and the circuit board can be relatively concentrated, thereby saving space to a certain extent and facilitating use in narrow spaces.

[0028] In this embodiment, at least two pin headers 2 are arranged along the length of the plastic body 1. Correspondingly, the plastic body 1 has the same number of first insertion cavities 11 and second insertion cavities 12 along its length as the pin headers 2. The first insertion cavities 11 and second insertion cavities 12 are spaced apart along the width of the plastic body 1. The pin header 2 includes an integrally formed clamping part 21, a welding part 22, and a bending part 23. The clamping part 21 and the welding part 22 are respectively connected to both ends of the bending part 23. In order to cooperate with the complementary connector in a limited space, the clamping part 21 and the welding part 22 are spaced apart and parallel, and both the clamping part 21 and the welding part 22 extend from the bending part 23 toward the same side, so that the pin header 2 has a U-shaped structure. The clamping part 21 is inserted into the first insertion cavity 11, and the first insertion cavity 11 positions the clamping part 21 to a certain extent, surrounding the clamping part 21 within it. The clamping part 21 clamps the complementary terminal through a plug-in connection to secure the complementary terminal and ensure the transmission of electrical signals. The soldering part 22 is inserted into the second insertion cavity 12, which separates the clamping part 21 and the soldering part 22 through the first insertion cavity 11 and the second insertion cavity 12. The clamping part 21 and the soldering part 22 are blocked by insulating material, which prevents the clamping part 21 and the soldering part 22, which are distributed in the same direction, from facing each other after being energized and affecting the electrical transmission due to the lack of shielding. Thus, the use of the clamping part 21 and the soldering part 22 will not interfere with each other.

[0029] To facilitate the mounting of both the clamping part 21 and the welding part 22 onto the plastic body 1 along the insertion direction, the first insertion cavity 11 and the second insertion cavity 12 both penetrate one side of the plastic body 1 along the insertion direction, thereby forming a third through-hole 15 on the plastic body 1 that connects to the first insertion cavity 11, and a first through-hole 13 on the plastic body 1 that connects to the second insertion cavity 12. The first through-hole 13 and the second through-hole 14 are both located on the same side of the plastic body 1, so that after the clamping part 21 aligns with the third through-hole 15 and the welding part 22 aligns with the first through-hole 13, the pin 2 can be moved along the insertion direction to insert the clamping part 21 into the first insertion cavity 11 through the third through-hole 15. At the same time, the welding part 22 is inserted into the second insertion cavity 12 through the first through-hole 13. To facilitate the engagement of the complementary terminal with the clamping part 21 within the first insertion cavity 11, the first insertion cavity 11 extends through one side of the plastic body 1 in a certain direction, forming a fourth through-hole 16 on the plastic body 1 that connects to the first insertion cavity 11. The complementary terminal passes through the fourth through-hole 16 into the first insertion cavity 11 to engage with the clamping part 21. To facilitate the soldering engagement of the soldering part 22 with the circuit board, the second insertion cavity 12 extends through one side of the plastic body 1 in a certain direction, forming a second through-hole 14 on the plastic body 1 that connects to the second insertion cavity 12. After the circuit board is attached to the outer wall of the plastic body 1, one end of the soldering part 22 extends out of the plastic body 1 through the second through-hole 14 to contact the circuit board. The soldering part 22 is soldered onto the circuit board by means of soldering or the like, thus achieving the electrical connection between the pin header 2 and the circuit board. To minimize the space required for complementary terminals and circuit boards, and to simplify the connection between the female connector and the complementary connector, as well as the mating between the female connector and the circuit board, the fourth through-hole 16 extends through the plastic body 1 along the insertion direction on the side away from the third through-hole 15, and is distributed opposite to the third through-hole 15 on two opposing sides of the plastic body 1. The second through-hole 14 extends through the plastic body 1 along the insertion direction on the side away from the first through-hole 13, and is distributed opposite to the first through-hole 13 on two opposing sides of the plastic body 1. Thus, the second through-hole 14 and the fourth through-hole 16 are located on the same side of the plastic body 1, and the complementary terminals and circuit board mate with the pin header 2 along the insertion direction. This ensures that the complementary terminals and circuit board are located on the same side of the plastic body 1 when connected to the female connector, typically allowing the complementary connector and circuit board to be clustered together, significantly reducing space usage and enabling the female connector to be used in special environments. To facilitate the passage of the complementary terminal through the fourth through-hole 16, the fourth through-hole 16 is shaped like a frustum or a trumpet that gradually narrows toward the first insertion cavity 11, while the side of the fourth through-hole 16 away from the first insertion cavity 11 is wide.

[0030] In this embodiment, the clamping part 21 includes a connecting part 211 connected to one end of the bent part 23 and an elastic part 212 extending from the connecting part 211 away from the bent part 23. During assembly, both the connecting part 211 and the elastic part 212 pass through the first insertion cavity 11. When the connecting part 211 and the elastic part 212 are inserted into the first insertion cavity 11, both sides of the connecting part 211 are tightly fitted with the first insertion cavity 11, thereby maintaining the stability of the clamping part 21 to a certain extent and preventing the clamping part 21 from shaking significantly. To further improve the firmness between the clamping part 21 and the first insertion cavity 11, abutment parts 213 are provided on both sides of the connecting part 211 along its width for tightly fitting with the inner walls of both sides of the first insertion cavity 11. The abutting portion 213 includes several protrusions extending from the side of the connecting portion 211. The protrusions are shaped like barbs or serrations with pointed ends. One side of the pointed end of each protrusion is bent towards the bending portion 23, allowing the connecting portion 211 to be inserted into the first insertion cavity 11 along the insertion direction from the third through-hole 15 to the fourth through-hole 16. A clearance groove is formed between any two adjacent protrusions to allow space for deformation after compression. The elastic portion 212 includes a first elastic arm 2121 and a second elastic arm 2122, which are spaced apart along the width direction of the connecting portion 211. The ends of the first elastic arms 2121 and 2122 away from the connecting portion 211 are arranged at an angle towards each other, so that the first elastic arm 2121 and 2122 are generally wider near the connecting portion 211 and narrower away from the connecting portion 211. There is a clearance space between the first elastic arm 2121 and the second elastic arm 2122. The complementary terminal is inserted into the clearance space after passing through the fourth through hole 16. A clamping point 2123 is formed between the ends of the first elastic arm 2121 and the second elastic arm 2122 away from the connecting part 211. The distance between the clamping points 2123 is less than the width of the complementary terminal. A guide slope 2124 is formed at the ends of the first elastic arm 2121 and the second elastic arm 2122 away from the connecting part 211. The guide slope 2124 gradually widens from the clamping point 2123 toward the side away from the connecting part 211, so that the complementary terminal can be squeezed into the clamping point 2123.

[0031] To reduce obstruction of the clamping part 21 by the first insertion cavity 11 and thus reduce compression, the first insertion cavity 11 includes a main cavity section 111 and secondary cavity sections 112 formed on both sides of the main cavity section 111 along the width direction of the plastic body 1. The width of the secondary cavity sections 112 is smaller than the width of the main cavity section 111, and the main cavity section 111 is adapted to the clamping part 21, which is inserted into the main cavity section 111. Both secondary cavity sections 112 are connected to the main cavity section 111, so that the middle part of the clamping part 21 is exposed in the secondary cavity section 112, thereby preventing it from contacting the plastic body 1, reducing the contact area between the clamping part 21 and the plastic body 1, and thus maintaining the stability of the clamping part 21.

[0032] In this embodiment, the bending portion 23 extends along the width direction of the plastic body 1, and each end of the bending portion 23 has a bending foot 231. The connecting portion 211 of the clamping portion 21 is integrally connected to one of the bending feet 231, and one end of the welding portion 22 is connected to the other bending foot 231. The width of the bending portion 23 is smaller than the width of the connecting portion 211. Both bending feet 231 are quarter-circle arcs. After bending, the bending feet 231 extend in the same direction along the insertion direction. The clamping portion 21 and the welding portion 22 are arranged relative to the bending portion 23, extending from the two bending feet 231 towards the same side along the insertion direction. During assembly, the clamping part 21 is inserted into the first insertion cavity 11, and the welding part 22 is inserted into the second insertion cavity 12. The bending part 23 abuts against the plastic body 1 outside the first insertion cavity 11 and the second insertion cavity 12, that is, the bending part 23 abuts against the side surface of the plastic body 1 where the first through-hole 13 and the third through-hole 15 are provided. The bending part 23 fits against the outer wall of the plastic body 1 to improve the stability of the clamping part 21 and the welding part 22, while limiting the insertion depth of the clamping part 21 and the welding part 22. On the side surface of the plastic body 1 where the first through-hole 13 is provided, and on both sides along the width direction of the plastic body 1, a retaining edge 17 is provided. A groove-shaped space is formed between the two retaining edges 17, and the bending part 23 is located in this space, so that the retaining edge 17 can prevent the bending part 23 from directly contacting and squeezing the object when the plastic body 1 is supported on any object.

[0033] In this embodiment, the welding portion 22 includes an extension section 221 extending along the insertion direction from a bent leg 231 away from the clamping portion 21, and a welding section 222 extending from the extension section 221 toward the side away from the bent leg 23. Since the clamping portion 21 has maintained a relatively stable connection with the plastic body 1, both the extension section 221 and the welding section 222 extend to the same width as the bent leg 231 but are narrower than the clamping portion 21 to save material. To save material and to facilitate heat dissipation of the welding portion 22 after connection with the complementary terminal, the second insertion cavity 12 is much wider than the width of the welding portion 22. The first through-hole 13 and the second through-hole 14 are both formed by openings in the inner walls of the second insertion cavity 12 along the insertion direction. To save space and to provide some support for the extension 221, the inner wall of the second insertion cavity 12 near the first insertion cavity 11 is defined as a fitting wall 121. When the clamping part 21 is inserted into the first insertion cavity 11, the welding part 22 contacts the fitting wall 121. The second insertion cavity 12 has side cavity walls 122 on both sides along the length direction of the plastic body 1 relative to the fitting wall 121, and both side cavity walls 122 are perpendicular to the fitting wall 121. The second insertion cavity 12 is opened along the width direction of the plastic body 1 away from the fitting wall 121, so that the extension 221 is directly exposed outside the plastic body 1 when it is inserted into the second insertion cavity 12, so as to facilitate rapid heat dissipation and also to facilitate the entry and cooperation of other objects.

[0034] In this embodiment, since the welding section 22 is L-shaped by bending, and the welding section 22 is not fixed relative to the clamping section 21, after the clamping section 21 is positioned, the welding section 22 may tilt and pop out towards the side away from the first insertion cavity 11, affecting the welding between the welding section 222 and the circuit board. Therefore, a limiting section 18 is provided in the second insertion cavity 12 to restrict the elastic movement of the extension section 221. During assembly, the extension section 221 is attached to the fitting wall 121, and the welding section 222 passes through the limiting section 18, passes through the second through-hole 14, and protrudes from the plastic body 1. The limiting part 18 includes two limiting blocks 181 disposed on opposite sides of the fitting wall 121 and a limiting groove 182 formed between the two limiting blocks 181 and communicating with the second insertion cavity 12 along the insertion direction. The two limiting blocks 181 are integrally connected to the two side cavity walls 122 and protrude relative to the two side cavity walls 122 respectively. The two limiting blocks 181 are arranged at intervals so that the limiting groove 182 is formed between the two limiting blocks 181. The extension section 221 is riveted through the limiting groove 182. The space between the two limiting blocks 181 is defined as a gap space 184. The width of the gap space 184 is smaller than the width of the extension section 221. The side of the gap space 184 closest to the fitting wall 121 is widened and slotted corresponding to the extension section 221, thereby forming a limiting groove 182 recessed on the opposite side of the two limiting blocks 181 relative to the gap space 184. This causes the gap space 184 to protrude relative to the limiting groove 182, forming a stop 183. In use, the welding section 222 passes through the limiting groove 182 along the insertion direction until the bending part 23 abuts against the plastic body 1. The welding section 222 then passes through the second through-hole 14 and exits the plastic body 1. The extension section 221 is riveted to the limiting groove 182 in a through-hole manner. The stop 183 blocks the extension section 221 so that the welding section 221 cannot move in a direction other than the insertion direction.

[0035] Inclined surfaces are formed on two limiting blocks 181 on the side of the space 184 away from the limiting groove 182. These inclined surfaces slope backward from the side near the limiting groove 182 toward the side away from the limiting groove 182, extending to the side cavity wall 122. This creates a guide groove 185 in the space 184 away from the limiting groove 182, which gradually widens toward that side. The guide groove 185 communicates along the width direction of the plastic body 1 toward the side away from the bonding wall 121, allowing the welding part 22 to be inserted into the limiting groove 182 from the opening side of the second insertion cavity 12 via the guide groove 185. Both limiting blocks 181 are located on the side away from the first through-hole 13. In another installation method, the welding part 22 is initially not parallel to the clamping part 21 but tilted outwards. During installation, the clamping part 21 can be inserted into the first insertion cavity 11 along the insertion direction. At this time, the welding section 222 may be located outside the guide groove 185. Then, the extension section 221 is pushed into the limiting groove 182 along the width direction of the plastic body 1 until the extension section 221 passes through the guide groove 185 and is squeezed into the limiting groove 182 after being pressed against the stop part 183, thereby completing the installation between the plastic body 1 and the pin header 2.

[0036] Compared with the prior art, the female connector of this utility model can enable the clamping part 21 and the welding part 22 to cooperate with the complementary terminal and the circuit board respectively in a relatively narrow space within a limited space, while maintaining a stable connection between the pin header 2 and the plastic body 1.

Claims

1. A female connector, comprising a plastic body and pin headers, characterized in that: The pin header includes a clamping part for clamping complementary terminals, a soldering part for soldering to a circuit board, and a bending part with both ends connected between the clamping part and the soldering part to make the clamping part and the soldering part spaced apart and distributed in the same direction; the plastic body is provided with a first insertion cavity and a second insertion cavity that are parallel and spaced apart, the clamping part is inserted into the first insertion cavity, the soldering part is inserted into the second insertion cavity and one end protrudes out of the plastic body, and the bending part abuts against the plastic body outside the first insertion cavity and the second insertion cavity.

2. The female connector as described in claim 1, characterized in that: The bending portion extends along the width direction of the plastic body, and both ends of the bending portion have bending feet. After bending, the bending feet extend in the same direction along an insertion direction parallel to the height direction of the plastic body. The clamping portion and the welding portion are integrally connected to the two bending feet.

3. The female connector as described in claim 2, characterized in that: The welding portion includes an extension section extending from a bent foot away from the clamping portion along the insertion direction and a welding section extending from the extension section toward the side away from the bent portion; a limiting portion for restricting the elastic movement of the extension section is formed on the second insertion cavity, the extension section is attached to the second insertion cavity and passes through the limiting portion, and the welding section passes through the plastic body.

4. The female connector as described in claim 3, characterized in that: The second insertion cavity has a fitting wall close to one side of the first insertion cavity. The limiting part includes two limiting blocks disposed on opposite sides of the fitting wall and a limiting groove formed between the two limiting blocks and communicating with the second insertion cavity along the insertion direction. The extension section fits against the fitting wall and one end is riveted into the limiting groove.

5. The female connector as described in claim 4, characterized in that: The second insertion cavity also has two side cavity walls that are perpendicular to the bonding wall and adjacent to each other on opposite sides of the bonding wall along the length direction of the plastic body. The two limiting blocks are respectively connected and protrude from the two side cavity walls. An interval space is formed between the two limiting blocks. The interval space is widened on the side closer to the bonding wall to form the limiting groove. The side of the interval space closer to the limiting groove protrudes relative to the limiting groove to form a stop for blocking the extension section.

6. The female connector as described in claim 5, characterized in that: A guide groove is formed on the side of the interval space away from the limiting groove, gradually widening towards the side away from the limiting groove.

7. The female connector as described in any one of claims 4 to 6, characterized in that: The second insertion cavity extends through both sides of the plastic body along the insertion direction to form a first through-hole and a second through-hole respectively. The bent part is located outside the first through-hole, and the limiting block is located on the side close to the second through-hole. The second insertion cavity and the guide groove both extend through the plastic body along the width direction of the plastic body toward the side away from the adhesive wall.

8. The female connector as described in claim 2, characterized in that: The clamping part includes a connecting part connected to the bending foot and an elastic part extending from the connecting part away from the bending part. Both the connecting part and the elastic part are inserted into the first insertion cavity, and when the connecting part and the elastic part are inserted into the first insertion cavity, the two sides of the connecting part are tightly fitted with the first insertion cavity.

9. The female connector as described in claim 8, characterized in that: The connecting part has protruding abutment portions on both sides along its width for tightly fitting with the inner walls of the two sides of the first insertion cavity.

10. The female connector as described in claim 9, characterized in that: The elastic part includes a first elastic arm and a second elastic arm. The ends of the first elastic arm and the second elastic arm away from the connecting part are arranged at an angle to each other, and there is a clearance space between the first elastic arm and the second elastic arm.

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