Electric connector with positioning structure

Abstract

The utility model discloses an electric connector with a positioning structure, which comprises a plastic main body and a metal terminal, the plastic main body is provided with an insertion cavity, the metal terminal is inserted into the insertion cavity from an insertion port along an insertion direction, the metal terminal is bent to form a protruding positioning part, and the positioning part is provided with a positioning hole. And a blocking part which is used for being hooked with the positioning part to limit the movement of the metal terminal after the metal terminal is mounted in the inserting cavity is formed on the inner wall of the inserting cavity. The blocking part is arranged on the plastic main body, and the protruding positioning part is arranged on the metal terminal in a bending manner, so that the positioning part is firmer, and the positioning part can be mounted in the insertion cavity and limited in the insertion cavity by the blocking part through elastic extrusion between the positioning part and the blocking part; compared with the prior art, the metal terminal is firmer and more stable, the positioning part is enabled to unidirectionally move relative to the blocking part through a hooking mode, so that the positioning part can enter the insertion cavity and is difficult to separate from the insertion cavity, and the connection of the metal terminal is more stable.

Description

Technical Field

[0001] This utility model relates to an electrical connector with a positioning structure. Background Technology

[0002] Electrical connectors are a subfield of electronic components, primarily used for connections between circuits. They provide a separable interface for connecting two secondary electronic systems and are components that complete the electrical connection between circuits or electronic devices. They allow signals, data, or power to be transmitted in electronic systems while maintaining an openable and accessible connection.

[0003] One type of spring-loaded terminal is a special electrical connection component. It has an internal spring structure formed by bending or other methods, and the electrical connection is achieved through the elastic deformation of this spring structure, providing efficient and stable connection performance. When a wire or cable is inserted into the terminal, the spring is compressed and undergoes elastic deformation, tightly wrapping around the wire or cable to achieve the electrical connection. This connection method is not only simple and quick but also provides stable performance. However, to ensure a stable connection between the spring-loaded terminal and the plastic body when installed inside a plastic housing, a protruding convex structure is usually formed on the outer wall of the terminal through stamping or other methods. This convex structure achieves fastening and stability by pressing against the plastic body. However, for the sake of terminal installation, the surface of the convex structure is smooth. While it provides a certain degree of fastening, it is also easy for it to detach from the plastic body under certain force, resulting in relatively poor stability. 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 an electrical connector with a positioning structure to solve the problem of poor stability of the convex structure on the terminal.

[0005] To solve the above-mentioned technical problems, the present invention provides an electrical connector with a positioning structure, comprising a plastic body and a metal terminal. The plastic body has an insertion cavity, and the metal terminal is inserted into the insertion cavity from an insertion port along an insertion direction. The metal terminal has a protruding positioning part formed by bending, and a blocking part is formed on the inner wall of the insertion cavity for hooking with the positioning part after the metal terminal is installed in the insertion cavity to restrict the movement of the metal terminal.

[0006] Furthermore, the blocking part is disposed in the insertion cavity along the insertion direction and forms an elastic space between it and one of its inner walls for the positioning part to pass through, and the end of the blocking part away from the insertion port of the insertion cavity forms a blocking surface; during the process of the metal terminal being inserted into the insertion cavity, the positioning part is blocked by the blocking surface after passing through the elastic space.

[0007] Furthermore, the side of the blocking portion facing the elastic space is defined as a pressing surface to form the elastic space between it and the cavity wall of the insertion cavity, and the positioning portion is disposed directly opposite the blocking surface along the insertion direction; a pressing slope is formed on the side of the pressing surface near the insertion port for elastically pressing the positioning portion with it when it passes along the insertion direction, and the positioning portion passes through the elastic space when it is elastically pressed with the pressing surface.

[0008] Furthermore, a clearance space is formed between the blocking part and the cavity wall of the insertion cavity on the opposite side of the extrusion surface, for the blocking part to deform inward after being extruded by the positioning part.

[0009] Furthermore, the positioning part includes a first arm segment that extends from one side of the metal terminal away from and perpendicular to the metal terminal, a bent arm segment that bends from the first arm segment toward the metal terminal, and a second arm segment that extends from the bent arm segment parallel to the first arm segment toward the metal terminal; when the metal terminal is inserted into the insertion cavity, the first arm segment faces the blocking surface along the insertion direction, and the second arm segment faces the elastic space along the insertion direction.

[0010] Furthermore, the insertion cavity extends through the plastic body along the insertion direction toward the side away from the insertion port to form an insertion port. The insertion cavity sequentially includes a mating cavity section, a transition cavity section, and a connecting cavity section that connects to the insertion port along the insertion direction. The blocking portion is formed in the mating cavity section, and the blocking surface is located on the side closer to the insertion port relative to the extrusion surface. The metal terminal includes a mating section inserted in the mating cavity section, a transition section passing through the transition cavity section, and a connecting section for connecting cables passing through the connecting cavity section. The mating section has an assembly cavity that faces and connects to the insertion port along the insertion direction.

[0011] Furthermore, the docking section includes a first side extending from the transition section along the insertion direction, a second side and a third side extending in the same direction after being bent on both sides of the first side along its width direction, and a fourth side extending towards the third side after being bent from the second side. The assembly cavity is formed between the first side, the second side, the third side and the fourth side. An L-shaped notch is formed on the side of the third side and the fourth side that are close to each other. The first arm segment is formed by bending from the L-shaped notch on the fourth side, and the second arm segment extends into the L-shaped notch on the third side and is parallel to the third side.

[0012] Furthermore, the second arm segment has two spaced-apart legs, and the metal terminal also includes a spring piece with one end bent from one of the arm segments into the assembly cavity, the other end of the spring piece extending into the assembly cavity along the insertion direction, and a supporting portion protruding in the middle of the spring piece toward the first side, and a tight fitting protrusion protruding on the first side corresponding to the supporting portion.

[0013] Furthermore, the electrical connector with positioning structure of this utility model also includes a plug portion. An L-shaped abutment groove is formed on one end of the mating section near the transition section. An installation cavity is formed on the plastic body along the height direction perpendicular to the insertion direction, facing the transition cavity section and penetrating one side of the plastic body. The installation cavity communicates with the transition cavity section. A passage cavity is formed on the plug portion along the insertion direction, which is used for the mating section to pass through before the plug portion is installed. An abutment surface is formed to fit the abutment groove and to abut against the abutment groove after the mating section and the plug portion are installed.

[0014] Furthermore, the connecting segment has rivet feet that bend and extend in the same direction on both sides along its width direction, and the rivet feet are used to hold the copper sheets on the cable.

[0015] The electrical connector with a positioning structure of this utility model has at least the following beneficial effects: by setting a blocking part on the plastic body and setting a protruding positioning part on the metal terminal by bending, the positioning part is made stronger. At the same time, the elastic compression between the positioning part and the blocking part allows the positioning part to be installed in the insertion cavity and restricted in the insertion cavity by the blocking part. Compared with the prior art, it is more firm and stable. By hooking, the positioning part can move unidirectionally relative to the blocking part and enter the insertion cavity but is difficult to detach from the insertion cavity, making the connection of the metal terminal more stable. 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 electrical connector of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the electrical connector of this utility model from another angle;

[0019] Figure 3 This is an exploded view of the electrical connector of this utility model;

[0020] Figure 4 for Figure 3 An enlarged view of part A shown;

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

[0022] Figure 6 for Figure 5 An enlarged view of part B shown;

[0023] Figure 7This is a sectional view of the mating side of the plug portion and the abutment groove of the electrical connector of this utility model;

[0024] Figure 8 This is a sectional view of the mating side of the electrical connector of this utility model, where the abutment groove is not restricted by the plug.

[0025] Figure 9 This is a schematic diagram of the structure of the metal terminal of this utility model;

[0026] Figure 10 This is a structural schematic diagram of the metal terminal of this utility model from another angle.

[0027] The meanings of the labels in the attached diagram are as follows:

[0028] Plastic body 1, main body 11, stop 12, auxiliary part 13, first auxiliary strip 131, first positioning groove 1311, second auxiliary strip 132, central protrusion 1321, buckle 133, first connecting section 1331, second connecting section 1332, snap block 1333, guide surface 1334, third connecting section 1335, first slot 1336, insertion cavity 14, mating cavity section 141, second clearance groove 1411, transition cavity section 142, connecting cavity section 143, first clearance groove 1431, insertion port 151, insertion port 152, mounting cavity 16, blocking part 17, elastic space 171, blocking surface 172, extrusion slope 1721 173. Extrusion surface 174. Clearance space 2. Metal terminal 2. Butt joint section 21. First side 211. Tight fitting protrusion 2111. Second side 212. Third side 213. Fourth side 214. L-shaped notch 215. Abutment groove 216. Assembly cavity 217. Transition section 22. Connecting section 23. Riveting foot 231. Positioning part 24. First arm section 241. Bending arm section 242. Second arm section 243. Arm leg 2431. Spring piece 25. Third arm section 251. Protrusion 2511. Abutment section 252. Holding part 2521. Plug part 3. Through cavity 31. Third clearance groove 32. Abutment surface 33. Protrusion 34. Flat cable 4. Connecting strip 5. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Please refer to Figures 1 to 10 The electrical connector with positioning structure of this utility model includes a plastic body 1, a metal terminal 2, and a plug 3. The metal terminal 2 and the plug 3 are both mounted on the plastic body 1. The plastic body 1 protects the metal terminal 2. After the metal terminal is mounted on the plastic body 1, the plug 3 restricts the metal terminal 2 so as to restrict the metal terminal 2 from moving outward toward the plastic body 1.

[0031] Please refer to Figures 1 to 8The plastic body 1 has a square structure and is injection molded from plastic. The plastic body 1 includes a main body portion 11 and a stop portion 12 distributed on one side of the main body portion 11 along an insertion direction. The width direction of the plastic body 1 is restricted to the insertion direction. The stop portion 12 extends backward on both sides of the height direction of the plastic body 1, and is wider than the main body portion 11, forming a stepped surface with respect to the two sides of the main body portion 11. The main body portion 11 is used to insert into the mating connector, and the stepped surface restricts the insertion depth of the main body portion 11. When the stepped surface abuts against the complementary connector, the main body portion 11 completes the insertion with the complementary connector.

[0032] To improve stability after the main body 11 is inserted with the complementary terminal, an auxiliary part 13 is provided on the outer wall of the main body 11. The auxiliary part 13 includes a first auxiliary strip 131 disposed on the outer walls of the two sides of the plastic body 1 along its length, four second auxiliary strips 132 formed on the outer wall of the main body 11 along its height, and a fastener 133 formed on the side of the main body 11 where the second auxiliary strips 132 are located. An L-shaped first positioning groove 1311 is formed on the two first auxiliary strips 131. The first positioning groove 1311 extends through the side of the main body 11 away from the stop 12 along the width direction of the plastic body 1, and extends through the side of the first auxiliary strip 131 away from the second auxiliary strips 132 along the height direction of the plastic body 1. When the main body 11 is inserted, the two first auxiliary strips 131 are inserted into the corresponding structures of the complementary connector. The L-shaped first positioning groove 1311 allows the corresponding structure of the complementary connector to pass through it and engage with it, making the insertion of the main body 11 more stable. The two second auxiliary strips 132 are respectively disposed on the two sides of the surface along the length direction of the plastic body 1. Regardless of whether it is the first auxiliary strip 131 or the second auxiliary strip 132, the length direction is arranged along the width direction of the plastic body 1. The other two second auxiliary strips 132 are symmetrically disposed on the inner side and are parallel to each other. A fastener 133 is disposed between two second auxiliary strips 132 located on the inner side. The fastener 133 includes a first connecting segment 1331 connected to the main body 11, a second connecting segment 1332 extending from the side of the first connecting segment 1331 away from the main body 11 toward the side of the stop 12, and a latching block 1333 formed on the side of the second connecting segment 1332 away from the main body 11. Each part of the auxiliary part 13 is integrally formed into the main body 11 as a plastic support. Therefore, the second connecting segment 1332 itself has a certain elasticity. The second connecting segment 1332 is spaced apart from the main body 11 so that the second connecting segment 1332 can deform relative to the main body 11 toward the side closer to the main body 11. The latching block 1333 is gradually widened along the width direction of the plastic body 1 toward the side of the stop 12 and has a guide surface 1334. Only one of the first connecting segment 1331 and the second connecting segment 1332 may be provided. In another embodiment, the first connecting segment 1331 and the second connecting segment 1332 are both provided as two and arranged at intervals along the length direction of the plastic body 1. A third connecting segment 1335 is connected to one end of the two second connecting segments 1332 near the stop portion 12 to improve the strength and elasticity between the two second connecting segments 1332. The two ends of the third connecting segment 1335 connected to the two second connecting segments 1332 are inclined away from the body segment. The middle part of the third connecting segment 1335 is arranged perpendicular to the two second connecting segments 1332, so that a first slot 1336 is formed between the latching block 1333 and the third connecting segment 1335 for the corresponding protruding latching structure of the complementary connector to be engaged.To further enhance the stability and firmness of the engagement between the latching block 1333 and the complementary connector, a central protrusion 1321 is formed on the side of the main body 11 where the second auxiliary strip 132 is located, corresponding to the position of the latching part 133. This protrudes towards the latching part 133, allowing the main body 11 to abut against the complementary connector when inserted into it. Simultaneously, it shortens the length of the first slot 1336, enabling the complementary connector's latch to be securely engaged within the first slot 1336. A movable cavity penetrating the latching part 12 is formed on the central protrusion 1321 along the width direction of the plastic body 1. The second connecting segment 1332 moves through this cavity, and the third connecting segment 1335 extends to the side facing the insertion port 151, being flush with or shorter than the side of the plastic body 1 facing the insertion port 151.

[0033] To facilitate the insertion of the metal terminals 2 into the plastic body 1, insertion cavities 14 are provided on the plastic body 1 along the insertion direction. In this embodiment, the number of insertion cavities 14 is the same as the number of metal terminals 2, and they can be arranged in a row, with each insertion cavity 14 arranged sequentially and spaced apart from each other along the length direction of the plastic body 1. In another embodiment, the number of insertion cavities 14 is the same as the number of metal terminals 2, and they are arranged in two rows, with the two rows of insertion cavities 14 distributed along the height direction of the plastic body 1, and each row of insertion cavities 14 arranged sequentially and spaced apart along the length direction of the plastic body 1. Each metal terminal 2 is inserted into the insertion cavity 14 along the width direction of the plastic body 1, which is also the insertion direction of the metal terminal 2. To facilitate the installation of the metal terminal 2 and the mating between the metal terminal 2 and the complementary terminal, insertion ports 151 and insertion sockets 152 are formed at both ends of the insertion cavity 14, extending through the plastic body 1 along the insertion direction. The metal terminal 2 is inserted into the insertion cavity 14 through the insertion port 151 and aligned with the insertion socket 152. The complementary terminal of the complementary connector passes through the insertion socket 152 into the insertion cavity 14 and mates with the metal terminal 2. An installation cavity 16 is formed on one side of the main body 11 of the plastic body 1 along the height direction perpendicular to the insertion direction (the height direction of the plastic body 1). The installation cavity 16 is formed along the height direction of the plastic body 1 and connects to each insertion port 151. The installation cavity 16 is adapted to the plug part 3, and the plug part 3 is installed in the installation cavity 16.

[0034] Please refer to Figures 3 to 10The metal terminal 2 is made of a conductive metal such as copper and is used to connect with complementary terminals and cables to conduct electrical signals. The metal terminal 2 includes a mating section 21, a transition section 22, a connecting section 23, a protruding positioning part 24 formed by bending from the mating section 21, and a spring piece 25 bent from the positioning part 24 into the assembly cavity 217. The mating section 21, the transition section 22, and the connecting section 23 are all inserted into the insertion cavity 14. The mating section 21 is located near the insertion port 152, and the connecting section 23 is located near the insertion port 151. The mating section 21 is used to mate with the complementary terminal, and the connecting section 23 is used to hold and connect the cable. The positioning part 24 is used to hook with the corresponding structure of the plastic body 1 to restrict the metal terminal 2 after it is inserted into the insertion cavity 14, so as to prevent the metal terminal 2 from falling out of the insertion cavity 14. In order to adapt to the structure of the metal terminal 2, the insertion cavity 14 includes, in sequence along the insertion direction, a docking cavity section 141 that connects to the insertion port 152, a transition cavity section 142 and a connecting cavity section 143 that connects to the insertion port 151. The mounting cavity 16 is provided to connect to each transition cavity section 142. The spring piece 25 presses the complementary terminal against the docking section 21 when the complementary terminal is inserted into it.

[0035] In this embodiment, the mating section 21 includes a first side 211 extending from the transition section 22 along the insertion direction, a second side 212 and a third side 213 extending in the same direction after being bent on both sides of the first side 211 along its width direction, and a fourth side 214 extending from the second side 212 toward the third side 213 after being bent. The width direction of the mating section 21 is consistent with the length direction of the plastic body 1, and the first side 211, the second side 212, the third side 213 and the fourth side 214 are arranged in a square tube shape, and the fourth side 214, the second side 212, the first side 211 and the third side 213 are sequentially and integrally connected, with no connection between the fourth side 214 and the third side 213. An assembly cavity 217 is provided between the first side 211, the second side 212, the third side 213 and the fourth side 214, and the assembly cavity 217 is through along the insertion direction so that complementary terminals can be inserted into it. Among them, L-shaped notches 215 are formed on the side of the third side 213 and the fourth side 214 that are close to each other, and the L-shaped notches 215 are all connected to the docking section 21 through the insertion port 152.

[0036] In this embodiment, the transition section 22 extends integrally from the end of the first side 211 away from the positioning part 24 along the width direction of the plastic body 1. The connecting section 23 extends integrally from the transition section 22 along the width direction of the plastic body 1 toward the side away from the mating section 21. Riveting feet 231 extend from both sides of the connecting section 23 along its width direction by bending, and the riveting feet 231 gradually narrow from one side of the connecting section 23 toward the side away from the connecting section 23. This invention uses a flat cable 4. When the flat cable 4 is placed on the connecting section 23 and the transition section 22, the riveting feet 231 are bent inwards and squeezed until they tightly hug the flat cable 4 and the copper sheet on the cable, thus achieving basic electrical contact. This allows for the conduction of electrical signals after energization. The connection between the copper sheet and the connecting section 23 can then be achieved by welding. In this embodiment, some of the connecting segments 23 are still connected to the connecting strip 5. The connecting strip 5 will be removed in subsequent processing, or it can be removed directly before the metal terminal 2 is installed on the plastic body 1, thus eliminating the need for the connecting strip 5. To facilitate the installation of the flat cable 4 with the connecting segments 23 and the transition segments 22, each row of connecting segments 143 and transition segments 142 are interconnected along the length of the plastic body 1.

[0037] In this embodiment, the positioning part 24 includes a first arm segment 241 that extends away from and perpendicular to the metal terminal 2 after being bent from one side of the docking section 21; a bent arm segment 242 that is bent from the first arm segment 241 toward the metal terminal 2; and a second arm segment 243 that extends from the bent arm segment 242 parallel to the first arm segment 241 toward the metal terminal 2, so that the positioning part 24 can protrude relative to the docking section 21. When the metal terminal 2 is inserted into the insertion cavity 14, the positioning part 24 on the docking section 21 engages and is positioned against the inner wall of the insertion cavity 14. In this embodiment, the first arm segment 241 is formed by bending from the L-shaped notch 215 on the fourth side 214 toward the side away from the fourth side 214 along the height direction of the plastic body 1. The second arm segment 243 extends from the bent arm segment 242 toward the third side 213 in a direction parallel to the first arm segment 241 into the L-shaped notch 215 on the third side 213, so that the positioning part 24 is U-shaped as a whole, making the positioning part 24 wider and having a certain elasticity, so that it can be elastically deformed and restored when squeezed. The widened positioning part 24 can also more firmly and better abut against the corresponding structure in the insertion cavity 14.

[0038] To facilitate cooperation with the positioning part 24, a blocking part 17 is formed on the inner wall of the insertion cavity 14 for engaging with the positioning part 24 after the metal terminal 2 is installed in the insertion cavity 14 to restrict the movement of the metal terminal 2. The blocking part 17 is disposed in the mating cavity section 141 of the insertion cavity 14 along the insertion direction, and an elastic space 171 is formed between the blocking part 17 and one side inner wall of the mating cavity section 141 for the positioning part 24 to pass through. The positioning part 24 can be inserted into the mating cavity section 141 by being squeezed between the positioning part 24 and the blocking part 17 in the elastic space 171. A blocking surface 172 is formed at the end of the blocking part 17 away from the insertion port 151 of the insertion cavity 14. During the process of inserting the metal terminal 2 into the insertion cavity 14, the positioning part 24 is blocked by the blocking surface 172 after passing through the elastic space 171, so that the positioning part 24 cannot be withdrawn from the mating cavity section 141 after being inserted into it. The blocking portion 17 protrudes from the side of the docking cavity section 141 near the transition cavity section 142 and extends towards the insertion port 152 along the insertion direction. The end of the blocking portion 17 facing the insertion port 152 is spaced apart from each cavity wall of the docking cavity section 141. A space is maintained between the blocking portion 17 and the docking cavity section 141 along the height direction of the plastic body 1 for the docking section 21 to pass through. The insertion port 152 faces the space along the insertion direction so that the blocking portion 17 does not hinder the cooperation between the docking section 21 and the docking cavity section 141. In order to facilitate the positioning portion 24 to pass through the connecting cavity section 143, the transition cavity section 142 and the docking cavity section 141 in sequence from the insertion port 151, a first clearance groove 1431 is recessed on the side of the connecting cavity section 143 corresponding to the positioning portion 24 along the height direction of the plastic body 1, penetrating the plastic body 1 along the insertion direction. When installing the metal terminal 2, the mating section 21 passes into the connecting cavity section 143, and the positioning part 24 passes into the first clearance groove 1431. The transition cavity section 142 is connected to the mounting cavity 16 and extends through one side of the plastic body 1 along the height direction of the plastic body 1, so that each transition cavity section 142 is connected to the mounting cavity 16. Therefore, the positioning part 24 is not affected by the transition cavity section 142. On the mating cavity section 141, the blocking part 17 is close to one end of the transition cavity section 142 and forms a second clearance groove 1411 between itself and the cavity wall of the mating cavity section 141 on the side facing the first clearance groove 1431 along the insertion direction. The second clearance groove 1411 connects to the elastic space 171, so that the positioning part 24 enters the elastic space 171 from the second clearance groove 1411 and passes into the mating cavity section 141.

[0039] In this embodiment, the space between one side of the blocking part 17 along the length of the plastic body 1 and the cavity wall of the docking cavity 141 is defined as an elastic space 171, and the side of the blocking part 17 facing the elastic space 171 is defined as an extrusion surface 173. That is, the extrusion surface 173 and the cavity wall of the docking cavity 141 opposite to it are spaced apart to form the elastic space 171. In order to facilitate the positioning part 24 to pass through the elastic space 171, an extrusion slope 1721 is formed on the side of the extrusion surface 173 near the insertion port 151 for elastic extrusion of the extrusion surface 173 when the positioning part 24 passes through the extrusion surface 173 along the insertion direction. The extrusion slope 1721 causes the middle part of the side of the blocking part 17 where the extrusion surface 173 is located to protrude into the elastic space 171. The gap between the middle part of the extrusion surface 173 and the cavity wall of the docking cavity 141 is smaller than the overall width of the positioning part 24, so that when the blocking part 17 is not extruded, the positioning part 24 cannot pass through the elastic space 171 normally. A secondary space is provided between the blocking part 17 and the cavity wall of the docking section 141 near the insertion port 152, allowing the positioning part 24 to pass through. To better block the positioning part 24 after it passes through the elastic space 171, an L-shaped blocking surface 172 is formed on the side of the extrusion surface 173 near the insertion port 152. The blocking surface 172 extends through the blocking part 17 along the height direction of the plastic body 1, and is open towards the elastic space 171 and the insertion port 152, so that the positioning part 24 is directly located inside the blocking surface 172 after passing through the extrusion surface 173. In use, the positioning part 24 gradually approaches the extrusion ramp 1721 after passing through the second clearance groove 1411 until it contacts the extrusion ramp 1721. At this time, the first arm section 241 faces the blocking surface 172 along the insertion direction, and the second arm section 243 faces the elastic space 171 along the insertion direction. Therefore, the first arm section 241 gradually contacts the extrusion ramp 1721 and is compressed.In one passage method, the blocking part 17 remains stationary, and the first arm segment 241 is compressed, causing it to deform towards the second arm segment 243, thus shortening the overall width of the positioning part 24, allowing the positioning part 24 to pass through the elastic space 171. In another passage method, the positioning part 24 remains stationary and does not deform, and a clearance space 174 is formed between the blocking part 17's back surface facing away from the compression surface 173 and the cavity wall of the insertion cavity 14 to allow the blocking part 17 to deform inward after being compressed by the positioning part 24. After contact with the pressing inclined surface 1721, as the positioning part 24 and the docking section 21 continue to move towards the insertion port 152, the positioning part 24 presses against the blocking part 17, causing the blocking part 17 to deform towards the clearance space 174, allowing the positioning part 24 to pass through the elastic space 171 until the positioning part 24 moves into the secondary space. At this time, the installation between the docking section 21 and the docking cavity section 141 is in place, the assembly cavity 217 is directly opposite the insertion port 152 along the insertion direction, and the positioning part 24 is directly opposite the blocking surface 172 along the insertion direction, causing the blocking surface 172 to block the positioning part 24. Among the two ways in which the positioning part 24 passes, the second way is preferred, so as to ensure the stability of the positioning part 24, while the deformation of the blocking part 17 is easier than the deformation of the positioning part 24.

[0040] In this embodiment, the second arm segment 243 has two spaced-apart arm legs 2431 at the end away from the bent arm segment 242. The two arm legs 2431 are distributed along the insertion direction, with one arm leg 2431 located in the L-shaped notch of the third side 213. The spring piece 25 is integrally connected to and bent from the other arm leg 2431. The spring piece 25 includes a third arm segment 251 extending from the bent arm leg 2431 along the width direction of the first side 211 into the assembly cavity 217, and an abutment segment 252 extending from the third arm segment 251 toward the insertion port 151 in the assembly cavity 217. A supporting portion 2521 is bent and protruded in the middle of the abutment segment 252 toward the first side 211, and the end of the abutment segment 252 away from the third arm segment 251 abuts against the inner wall of the fourth side 214 and extends toward the first side 211 after bending. To ensure the stability of the spring 25, the third arm segment 251 has a protruding bulge 2511 that abuts against the fourth side 214. A clamping space is provided between the abutting portion 2521 and the first side 211 for the complementary terminal to elastically abut therein. The bent abutting portion 252 guides the complementary terminal when it enters the assembly cavity 217, causing it to slide into the clamping space. Simultaneously, when the complementary terminal is squeezed into the clamping space, the deformation of the abutting portion 252 clamps the complementary terminal within the clamping space. To increase the clamping force on the complementary terminal, a tight-fitting protrusion 2111 is provided on the first side 211 corresponding to the clamping space. The tight-fitting protrusion 2111 is stamped and faces the abutting portion 2521. At least two tight-fitting protrusions 2111 can be provided and spaced apart along the insertion direction to increase the clamping force between the complementary terminal and the clamping terminal when the complementary terminal is squeezed into the clamping space.

[0041] In this embodiment, although the positioning part 24 can restrict the metal terminal 2 to prevent it from detaching from the plastic body 1, the subspace does not completely abut the positioning part 24 to facilitate its installation. It only restricts the mating section 21 to prevent the metal terminal 2 from detaching. Therefore, the metal terminal 2 still has some wobbling. To increase the firmness of the metal terminal 2 and reduce damage to it, a plug part 3 is provided. The mounting cavity 16 extends through the side of the main body 11 away from the second auxiliary strip 132 along the height direction of the plastic body 1. The shape of the mounting cavity 16 is cuboid and adapted to the plug part 3. The lengths of the plug part 3 and the mounting cavity 16 are aligned with the length of the plastic body 1 to facilitate the mating of the plug part 3 with each metal terminal 2 during installation. A through cavity 31 is provided on the plug part 3 at the position corresponding to each transition cavity along the insertion direction. The through cavity 31 is used for the mating section 21 to pass through after the plug part 3 is inserted into the mounting cavity 16 and before the installation is completed. Regardless of whether the metal terminals 2 are arranged in one or two rows, the passage cavity 31 is always arranged in one row. In the embodiment where the metal terminals 2 are arranged in two rows, before the plug 3 is installed, there is still space between the side of the plug 3 facing the second auxiliary strip 132 and the mounting cavity 16 for one row of metal terminals 2 to pass through, while the other row of metal terminals 2 passes through the passage cavity 31 on the plug 3. In order to ensure that the positioning part 24 passes through the plug 3, a third clearance groove 32 is formed on both the passage cavity 31 and the side of the plug 3 near the second auxiliary strip 132, which is consistent with the arrangement of the first clearance groove 1431. The third clearance groove 32 also extends along the insertion direction and is used to allow the positioning part 24 to move through, so as to avoid affecting the installation of the docking section 21. On the end of the mating section 21 near the transition section 22, i.e., on the end of the second side 212 and the third side 213 near the transition section 22, symmetrically formed L-shaped abutment grooves 216 are formed. The abutment grooves 216 open towards the connecting section 23 and pass through the metal terminal 2 along the length of the plastic body 1, and the abutment grooves 216 open away from the first side 211. In the embodiment with one row of metal terminals 2, an abutment surface 33 for fitting and engaging with the abutment groove 216 is formed on the side of the plug portion 3 near the opening of the mounting cavity 16. In the embodiment with two rows of metal terminals 2, an abutment surface 33 for fitting and engaging with the abutment groove 216 is formed on the side of the through cavity 31 near the opening of the mounting cavity 16 and on the side of the plug portion 3 near the second auxiliary strip 132. The contact surface 33 is a right-angled surface, consisting of the side of the plug 3 near the docking cavity and the aforementioned through cavity 31 and / or the side of the plug 3 near the second auxiliary strip 132.On both sides of the plug portion 3 along the length direction of the plastic body 1, there are protrusions 34. On both sides of the mounting cavity 16 along the length direction of the plastic body 1, there are recesses corresponding to the positions of the protrusions 34, in which the protrusions 34 are inserted. When the cavity 31 is aligned with the docking cavity section 141, the protrusions 34 are not inserted into the second slots. When the abutting surface 33 abuts against the abutting groove 216, the protrusions 34 are inserted into the second slots to restrict the movement of the plug portion 3, thus completing the installation of the plug portion 3 and abutting against the docking section 21. The docking section 21 abuts against the cavity wall of the docking cavity section 141 with the insertion port 152, thereby further fixing the metal terminal 2 and improving the stability and firmness of the metal terminal 2.

[0042] The operation of one embodiment of the electrical connector with a positioning structure of this utility model is as follows: The plug 3 is inserted into the mounting cavity 16, and the through cavity 31 is aligned with the mating cavity section 141 in the insertion direction. At this time, the side of the plug 3 near the second auxiliary strip 132 does not contact the cavity wall of the mounting cavity 16 but is spaced apart from the cavity wall of the mounting cavity 16. At this time, the metal terminal 2 is installed, so that the mating section 21 passes through the connecting cavity section 143 and the through cavity 31 in sequence and gradually enters the mating cavity section 141. When the first arm section 241 contacts the extrusion slope 1721, the blocking part 17 is extruded and deforms toward the clearance space 174 until the positioning part 24 passes through the elastic space 171 and aligns with the mating cavity section 141. After the connecting section 21 abuts against the side wall of the mating cavity section 141 with the socket 152, the transition section 22 is located in the through cavity 31, and the connecting section 23 is located in the connecting cavity section 143. At this time, the plug 3 is pushed towards the mounting cavity 16 until the protrusion 34 is engaged in the second slot. At this time, the abutting surface 33 abuts against the abutting groove 216, the metal terminal 2 is abutted, and the flat cable 4 is connected to the connecting section 23 before the metal terminal 2 is installed. Then, the latch 133 is aligned with the corresponding structure on the complementary connector, so that the main body 11 is inserted into the slot structure of the complementary connector until the latch 133 engages with it, and the complementary terminal is inserted into the assembly cavity 217 and abutted by the inner spring 25.

Claims

1. An electrical connector with a positioning structure, comprising a plastic body and metal terminals, wherein the plastic body has an insertion cavity, and the metal terminals are inserted into the insertion cavity from an insertion port along an insertion direction, characterized in that: The metal terminal has a protruding positioning part formed by bending, and a blocking part is formed on the inner wall of the insertion cavity to hook with the positioning part after the metal terminal is installed in the insertion cavity to restrict the movement of the metal terminal.

2. The electrical connector with a positioning structure as described in claim 1, characterized in that: The blocking part is disposed in the insertion cavity along the insertion direction and forms an elastic space between it and one of its inner walls for the positioning part to pass through. The end of the blocking part away from the insertion port of the insertion cavity forms a blocking surface. During the process of inserting the metal terminal into the insertion cavity, the positioning part is blocked by the blocking surface after passing through the elastic space.

3. The electrical connector with a positioning structure as described in claim 2, characterized in that: The side of the blocking portion facing the elastic space is defined as a pressing surface to form the elastic space between it and the cavity wall of the insertion cavity. The positioning portion is disposed directly opposite the blocking surface along the insertion direction. An pressing slope is formed on the side of the pressing surface near the insertion port for elastic pressing with the positioning portion when it passes along the insertion direction. The positioning portion passes through the elastic space when it is elastically pressed with the pressing surface.

4. The electrical connector with a positioning structure as described in claim 3, characterized in that: A clearance space is formed between the blocking part and the cavity wall of the insertion cavity on the opposite side of the extrusion surface, so that the blocking part can deform inward after being extruded by the positioning part.

5. The electrical connector with a positioning structure as described in any one of claims 2 to 4, characterized in that: The positioning part includes a first arm segment that extends from one side of the metal terminal toward a side away from and perpendicular to the metal terminal, a bent arm segment that bends from the first arm segment toward the metal terminal, and a second arm segment that extends from the bent arm segment along a path parallel to the first arm segment toward the metal terminal; when the metal terminal is inserted into the insertion cavity, the first arm segment faces the blocking surface along the insertion direction, and the second arm segment faces the elastic space along the insertion direction.

6. The electrical connector with a positioning structure as described in claim 5, characterized in that: The insertion cavity extends through the plastic body along the insertion direction toward the side away from the insertion port to form an insertion port. The insertion cavity sequentially includes a mating cavity section, a transition cavity section, and a connecting cavity section that connects to the insertion port along the insertion direction. The blocking part is formed in the mating cavity section, and the blocking surface is located on the side closer to the insertion port relative to the extrusion surface. The metal terminal includes a mating section inserted in the mating cavity section, a transition section passing through the transition cavity section, and a connecting section for connecting cables passing through the connecting cavity section. The mating section has an assembly cavity that faces and connects to the insertion port along the insertion direction.

7. The electrical connector with a positioning structure as described in claim 6, characterized in that: The docking section includes a first side extending from the transition section along the insertion direction, a second side and a third side extending in the same direction after being bent on both sides of the first side along its width direction, and a fourth side extending towards the third side after being bent from the second side. The assembly cavity is formed between the first side, the second side, the third side and the fourth side. An L-shaped notch is formed on the side of the third side and the fourth side that are close to each other. The first arm segment is formed by bending from the L-shaped notch on the fourth side, and the second arm segment extends into the L-shaped notch on the third side and is parallel to the third side.

8. The electrical connector with a positioning structure as described in claim 7, characterized in that: The second arm segment has two spaced-apart legs. The metal terminal also includes a spring piece with one end bent from one of the arm segments into the assembly cavity. The other end of the spring piece extends into the assembly cavity along the insertion direction. A supporting portion is provided in the middle of the spring piece facing the first side, and a tight fitting protrusion is provided on the first side corresponding to the supporting portion.

9. The electrical connector with a positioning structure as described in claim 6, characterized in that: It also includes a plug, and an L-shaped abutment groove is formed on one end of the docking section near the transition section. An installation cavity is formed on the plastic body along the height direction perpendicular to the insertion direction, facing the transition cavity and penetrating one side of the plastic body. The installation cavity is connected to the transition cavity. The plug is formed with a passage cavity that penetrates the plug along the insertion direction and is used for the docking section to pass through before the plug is installed, and an abutment surface that is adapted to the abutment groove to abut against the abutment groove after the docking section and the plug are installed.

10. The electrical connector with a positioning structure as described in claim 6, characterized in that: The connecting section has rivet feet that bend and extend in the same direction on both sides along its width direction. The rivet feet are used to hold the copper sheets on the cable.

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