Electrical connectors and telescopic adapters

Abstract

This invention provides an electrical connector and a telescopic adapter. The electrical connector includes an insulating body and a plurality of conductive terminals embedded and fixed within the insulating body. The insulating body has a first mating portion and a second mating portion connected to the first mating portion. The conductive terminals have a first contact portion exposed on the surface of the first mating portion and a second contact portion exposed on the surface of the second mating portion. The first contact portion is arranged in a ring shape. This electrical connector and telescopic adapter are simple and convenient to manufacture and can transmit a large current.

Description

Technical Field

[0001] This utility model relates to an electrical connector and a telescopic adapter. Background Technology

[0002] With the rapid development of science and technology in the electronics industry, the size of electronic products is becoming increasingly thinner and smaller, which requires the components of electronic products to be smaller and smaller, and the connector industry is the first to be affected.

[0003] Existing telescopic adapters include an electrical connector and a mating connector that can rotate relative to each other. The electrical connector is fixed within the cover of the telescopic adapter, and the mating connector is rotatably housed within the cover and contacts the electrical connector for electrical connection. The electrical connector includes a circuit board and annular conductive terminals soldered onto the circuit board. However, the circuit board manufacturing process is complex, requiring the soldering of gold fingers on the circuit board to the conductive terminals. All signals must be transmitted through conductive vias in the inner layer of the circuit board to the annular conductive terminals soldered to the circuit board before being transmitted out. This results in a weak ability to carry high currents and higher component and manufacturing costs.

[0004] In view of this, it is necessary to improve existing electrical connectors and telescopic adapters to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electrical connector and a telescopic adapter that are simple and convenient to manufacture and can transmit a large current.

[0006] To achieve the above-mentioned utility model objectives, this utility model provides an electrical connector, including an insulating body and a plurality of conductive terminals embedded and fixed within the insulating body. The insulating body has a first mating portion and a second mating portion connected to the first mating portion. The conductive terminals have a first contact portion exposed on the surface of the first mating portion and a second contact portion exposed on the surface of the second mating portion. The first contact portion is arranged in a ring shape.

[0007] As a further improvement of this utility model, the insulating body is flat and has a first surface and a second surface facing away from each other. The first contact portion is exposed on the first surface. At least two conductive terminals are provided. The two annular first contact portions corresponding to the at least two conductive terminals are coaxially arranged and spaced apart in the radial direction.

[0008] As a further improvement of this utility model, each conductive terminal has a first terminal portion arranged in a ring shape and a second terminal portion connected to the first terminal portion; the first contact portion is formed on one side surface of the first terminal portion, and the second contact portion is formed on one side surface of the second terminal portion.

[0009] As a further improvement of this utility model, the first terminal portion is fixed to the first docking portion, the first docking portion has at least one limiting groove penetrating the second surface, and at least part of the other side surface of the first terminal portion opposite to the first contact portion is exposed in the limiting groove.

[0010] As a further improvement of this utility model, at least a portion of the limiting groove is provided through the first surface and the second surface.

[0011] As a further improvement of this utility model, at least a portion of the first terminal portion has a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion of the same first terminal portion are disposed on both sides in the radial direction and exposed outward from the limiting groove.

[0012] As a further improvement of this utility model, the second terminal portion has an end portion that exposes the insulating body outward.

[0013] As a further improvement of this utility model, the second terminal portion is fixed to the second mating portion, the second contact portion is exposed on the second surface, the second mating portion has at least one positioning groove penetrating the first surface, and the upper part of the second terminal portion, on the other side of the surface opposite to the second contact portion, is exposed in the positioning groove.

[0014] As a further improvement of this utility model, the first terminal portion is in the form of a closed ring, and the second terminal portion has a connecting portion connected to the first terminal portion, wherein the connecting portion and the second contact portion are disposed at opposite ends of the second terminal portion.

[0015] As a further improvement of this utility model, the first terminal portion has a notch formed by breaking in its circumferential direction and a pair of ends that are spaced apart to form the notch, one of the ends being connected to the second terminal portion.

[0016] As a further improvement of this utility model, the second terminal portion is integrally connected to one of the said ends.

[0017] As a further improvement of this utility model, the second terminal portion is offset from the first terminal portion in the thickness direction of the insulating body, and the conductive terminal also has a turning portion connected to the first terminal portion. The turning portion extends in the same direction as the second terminal portion, and the conductive terminal also has a step portion connecting the turning portion to the second terminal portion.

[0018] To achieve the above-mentioned utility model objectives, this utility model also provides a telescopic adapter, which includes a first cover, a second cover, and a telescopic cable. The telescopic adapter further includes an electrical connector as described above and a mating connector that is rotatably in contact with the electrical connector. The electrical connector and the mating connector are housed in the first cover and the second cover, and the telescopic cable is connected to the mating connector.

[0019] As a further improvement of this utility model, the docking connector includes a docking body and a docking terminal embedded and fixed in the docking body. The docking body has a pivoting connection portion and a first docking area disposed on both sides of the pivoting connection portion. The docking terminal has a first contact arm disposed in the first docking area and a main body portion connecting the first contact arm. The first contact arm has a first docking contact portion that exposes the docking body outward.

[0020] The beneficial effects of this utility model are as follows: By embedding conductive terminals within an insulating body, the manufacturing process of the electrical connector is simplified, and the manufacturing cost is reduced. Simultaneously, signals can be directly transmitted between the first and second contact portions of the conductive terminals, resulting in a stronger ability to transmit large currents. Furthermore, the material and thickness of the conductive terminals can be flexibly adjusted according to requirements. Additionally, the insulating body effectively fixes the position of the conductive terminals, ensuring reliable contact with the mating connector. This guarantees continuous and stable electrical contact between the mating connector and the electrical connector at any rotation angle. Therefore, the electrical connector and telescopic adapter of this utility model can achieve automated production with high process efficiency, further reducing costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional assembly diagram of the first embodiment of the electrical connector of this utility model.

[0022] Figure 2 yes Figure 1 An exploded perspective view of the electrical connector shown.

[0023] Figure 3 yes Figure 1 Top view of the electrical connector shown.

[0024] Figure 4 yes Figure 1 The diagram shows a three-dimensional assembly of the electrical connector connected to the material strip.

[0025] Figure 5 yes Figure 4 Another view of the electrical connector being connected to the material strip.

[0026] Figure 6This is an exploded three-dimensional view of the electrical connector shown in Figure 5 connected to the material strip.

[0027] Figure 7 This is a three-dimensional assembly diagram of the second embodiment of the electrical connector of this utility model.

[0028] Figure 8 yes Figure 7 Another view of the electrical connector shown.

[0029] Figure 9 yes Figure 7 An exploded perspective view of the electrical connector shown.

[0030] Figure 10 yes Figure 7 The diagram shows a three-dimensional view of the electrical connector connected to the material strip.

[0031] Figure 11 yes Figure 10 The diagram shows an exploded perspective view of the electrical connector connected to the material strip.

[0032] Figure 12 yes Figure 10 The diagram shows a perspective view of the electrical connector connected to the material strip with the insulating body removed.

[0033] Figure 13 This is a three-dimensional assembly diagram of the third embodiment of the electrical connector of this utility model.

[0034] Figure 14 yes Figure 13 The diagram shows a three-dimensional assembly of the electrical connector connected to the material strip.

[0035] Figure 15 yes Figure 14 The diagram shows an exploded perspective view of the electrical connector connected to the material strip.

[0036] Figure 16 yes Figure 15 The diagram shows a perspective view of the electrical connector connected to the material strip with the insulating body removed.

[0037] Figure 17 This is a three-dimensional assembly diagram of the telescopic adapter of this utility model.

[0038] Figure 18 yes Figure 17 An exploded 3D view of the telescopic adapter shown.

[0039] Figure 19 yes Figure 18 A perspective view of the electrical connectors and mating connectors in the telescopic adapter shown.

[0040] Figure 20 yes Figure 19 An exploded perspective view of the mating connector shown. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0042] Please refer to Figures 1 to 6 The first embodiment of the electrical connector 100 of this utility model is shown; Figures 7 to 12 The image shows a second embodiment of the electrical connector 100 of this utility model; Figures 13 to 16 The figure shown is a third embodiment of the electrical connector 100 of this utility model; Figures 17 to 20 The diagram shown is a schematic of the telescopic adapter 1000 of this utility model, wherein the telescopic adapter 1000 includes an electrical connector 100 and a mating connector 700 that is connected to the electrical connector 100.

[0043] Please refer to Figures 1 to 16 As shown, the electrical connector 100 in the first embodiment has a largely the same basic structure as the electrical connector 100 in the second and third embodiments. The specific structure of the electrical connector 100 in each embodiment of this utility model will be described below, taking the first embodiment as an example.

[0044] Please refer to Figures 1 to 6 As shown, in the first embodiment of the electrical connector 100 of this utility model, the electrical connector 100 includes an insulating body 1 and a plurality of conductive terminals 2 embedded and fixed in the insulating body 1.

[0045] The insulating body 1 has a first mating portion 12 and a second mating portion 13 connected to the first mating portion 12. Further, in this embodiment, the insulating body 1 is flat and has a first surface 101 and a second surface 102 facing away from each other.

[0046] The conductive terminal 2 has a first contact portion 201 exposed on the surface of the first mating portion 12 and a second contact portion 203 exposed on the surface of the second mating portion 13, wherein the first contact portion 21 is arranged in a ring shape.

[0047] Thus, by embedding the conductive terminal 2 within the insulating body 1, the manufacturing process of the electrical connector 100 is simplified, and its manufacturing cost is reduced. Simultaneously, signals can be directly transmitted between the first contact portion 201 and the second contact portion 203 of the conductive terminal 2, resulting in a stronger ability to transmit large currents. Furthermore, the material and thickness of the conductive terminal 2 can be flexibly adjusted according to requirements. Additionally, the insulating body 1 effectively fixes the position of the conductive terminal 2, ensuring reliable contact with the mating connector 700. This guarantees continuous and stable electrical contact between the mating connector 700 and the electrical connector 100 at any rotation angle. The electrical connector 100 of this invention enables automated production with high process efficiency, further reducing costs.

[0048] In this embodiment, the first contact portion 201 is exposed on the first surface 101, and at least two conductive terminals 2 are provided. The two annular first contact portions 201 corresponding to the at least two conductive terminals 2 are coaxially arranged and spaced apart in the radial direction.

[0049] Thus, by arranging at least two annular first contact portions 201 coaxially, the surface area of ​​the flat insulating body 1 is maximized, and a multi-conductive terminal layout is achieved in a limited space. At the same time, the flat structure of the insulating body 1 can be used to ensure balanced contact surface pressure during rotation, reduce the risk of uneven wear, improve the stability of synchronous electrical connection of multiple conductive terminals 2, and thus extend service life.

[0050] Specifically, in this embodiment, each conductive terminal 2 has a first terminal portion 21 arranged in a ring shape and a second terminal portion 23 connected to the first terminal portion 21; the first contact portion 201 is formed on one side surface of the first terminal portion 21, and the second contact portion 203 is formed on one side surface of the second terminal portion 23.

[0051] Thus, continuous 360° conductivity is ensured by the annular first terminal portion 21 and the first contact portion 201 provided on one side surface, avoiding signal interruption due to dynamic friction; and communication with external components is achieved by the second terminal portion 23 connected to the first terminal portion 21 and having a second contact portion 203 provided on one side surface.

[0052] The first terminal portion 21 is fixed to the first mating portion 12, and the first mating portion 12 has at least one limiting groove 121 extending through the second surface 102. At least a portion of the other side surface of the first terminal portion 21, opposite to the first contact portion 201, is exposed within the limiting groove 121.

[0053] Thus, during the process of embedding the conductive terminal 2 into the insulating body 1, the first terminal portion 21 of the conductive terminal 2 can be directly supported and positioned by the limiting groove 121, avoiding offset or tilting, and ensuring the coaxiality and spacing tolerance of the annular first terminal portion 21.

[0054] At least a portion of the limiting groove 121 is provided through the first surface 101 and the second surface 102. Thus, during injection molding, the limiting groove 121 can serve as a channel for mold ejector pins or locating pins, ensuring that the first terminal portion 21 does not shift during injection molding; simultaneously, the limiting groove 121 facilitates the complete removal of the connecting strip 31 between adjacent first terminal portions 21, preventing residual metal burrs from causing short circuits or signal interference. The boundary of the limiting groove 21 also defines a safe cutting area, preventing damage to the first terminal portion 21 when cutting the connecting strip 31.

[0055] In the various embodiments shown in this utility model, the second terminal portion 23 has an end portion 231 that exposes the insulating body 1. Thus, by connecting the end portion 231 to the first material strip 32, fully automated production line conveying can be achieved in processes such as stamping, electroplating, and injection molding, without manual intervention. This ensures that the conductive terminal 2 accurately enters the mold embedding position, avoiding manual alignment deviations. Furthermore, during embedding and molding, the end portion 231 of the second terminal portion 23 can be fixed by positioning the first material strip 32, preventing the second terminal portion 23 from shifting or bending due to injection pressure.

[0056] In this embodiment, the second terminal portion 23 is fixed to the second mating portion 13, the second contact portion 203 is exposed on the second surface 102, the second mating portion 13 has at least one positioning groove 131 penetrating the first surface 101, and the upper part of the second terminal portion 23 is exposed in the positioning groove 131 on the other side of its surface opposite to the second contact portion 203.

[0057] Thus, during the embedding process, the clamping mechanism of the mold (such as ejector pins and claws) can directly clamp and fix the exposed surface of the second terminal portion 23 through the positioning groove 131, preventing the second terminal portion 23 from shifting or tilting, and ensuring the positional accuracy of the second contact portion 203 on the second surface 102.

[0058] In the illustrated embodiments, the positioning groove 131 extends through the insulation body 1 along its thickness direction, and a plurality of the positioning grooves 131 are staggered in the extending direction of the second terminal portion 13. At least some of the positioning grooves 131 are configured such that adjacent positioning grooves 131 are staggered in the extending direction of the second terminal portion 13 and at least partially staggered in the arrangement direction of the second terminal portion 13.

[0059] Furthermore, adjacent sides of two adjacent second terminal portions 13 in the arrangement direction of the second terminal portions 13 are partially exposed outward from the same positioning groove 131. In this way, the second terminal portions 13 on both sides can be positioned by means of the same positioning groove 131, thereby reducing the positioning difficulty during injection molding.

[0060] In this embodiment, at least a portion of the first terminal portion 21 has a first connecting portion 211 and a second connecting portion 212. The first connecting portion 211 and the second connecting portion 212 of the same first terminal portion 21 are disposed on both sides in the radial direction and exposed outward from the limiting groove 121.

[0061] Thus, by providing a first connecting part 211 and a second connecting part 212 on at least part of the first terminal part 21 on both radial sides, the mold can clamp and position the first terminal part 21 from both sides, avoiding eccentricity or deformation caused by unilateral force, while also counteracting the asymmetrical extrusion of the molten plastic flow on the annular first terminal part 21, preventing the first terminal part 21 from twisting and deforming, and thereby controlling the coaxiality of the first terminal part 21.

[0062] The first connecting part 211 of the first terminal part 21 is disposed on its outer periphery, and the second connecting part 212 of the first terminal part 21 is disposed on its inner periphery. In the first terminal part 21 having the first connecting part and the second connecting part, the first connecting part 211 of one first terminal part 21 is correspondingly disposed with the second connecting part 212 of another first terminal part 21 disposed adjacent to the radially outer side of the first terminal part 21, so as to be connected to the same connecting strip 31.

[0063] Furthermore, in this embodiment, the first connecting part 211 and the second connecting part 212 of the same first terminal part 21 are arranged opposite to each other in the radial direction, so that the extension direction of the connecting strip 31 is consistent with the radial direction.

[0064] In some embodiments, at least a portion of the first terminal portion 21 has at least two first connecting portions 211 and at least two second connecting portions 212. The first connecting portions 211 of the same first terminal portion 21 are spaced apart in the circumferential direction of the first terminal portion 21. The second connecting portions 212 of the same first terminal portion 21 are also spaced apart in the circumferential direction of the first terminal portion 21.

[0065] The second connecting part 212 of the first terminal part 21 is divided into at least two groups that are spaced apart in the circumferential direction, and the second connecting parts 212 in each group are aligned in the radial direction.

[0066] In the various embodiments shown in this utility model, the first terminal portion 21 located on the innermost side in the radial direction has only a first connecting portion 211 located on its radially outer side.

[0067] In the first embodiment of this utility model, the first terminal portion 21 located on the outermost side in the radial direction has only a second connecting portion 212 located on its radial inner side; of course, in the first embodiment, the first terminal portion 21 located on the outermost side in the radial direction may also have both a first connecting portion 211 and a second connecting portion 212.

[0068] In the second and third embodiments of this utility model, the outermost first terminal portion 21 in the radial direction simultaneously has a first connecting portion 211 and a second connecting portion 212. In this case, the first connecting portion 211 of the outermost first terminal portion 21 is connected to the second strip 34. Similar to the first strip 34, the second strip 34 enables fully automated production line conveying in processes such as stamping, electroplating, and injection molding, eliminating the need for manual intervention. It also ensures that the conductive terminal 2 accurately enters the mold embedding position, avoiding manual alignment deviations. Furthermore, during embedding and molding, the positioning of the second strip 34 fixes the first connecting portion 211 of the outermost first terminal portion 21 in the radial direction, preventing the first terminal portion 21 from shifting or bending due to injection pressure.

[0069] like Figures 1 to 6 As shown, in the first embodiment of the present invention, the first terminal portion 21 has a notch 213 formed by breaking in its circumferential direction and a pair of ends 214 formed at intervals of the notch 213, one of the ends 214 being connected to the second terminal portion 23.

[0070] The second terminal portion 23 is integrally connected to one of the said ends 214. In this way, by integrally connecting the second terminal portion 23 to the first terminal portion 21 without intermediate transitions or soldering, signal attenuation can be reduced, making it suitable for high-frequency or high-current applications.

[0071] The second terminal portion 23 and the first terminal portion 21 are offset from each other in the thickness direction of the insulating body 1. The conductive terminal 2 also has a turning portion 24 connected to the first terminal portion 23. The turning portion 24 extends in the same direction as the second terminal portion 23. The conductive terminal 2 also has a step portion 25 that connects the turning portion 24 to the second terminal portion.

[0072] The turning portion 25 is exposed on the first surface 101, and the step portion 25 is embedded in the first docking portion 12.

[0073] In this embodiment, one of the pair of ends 214 is connected to the second terminal portion 23, and the conductive terminal 2 also has a head 26 connected to the other end 214, the head 26 being embedded inside the first docking portion 12.

[0074] In addition, in this embodiment, the thickness of the second docking portion 13 is greater than the thickness of the first docking portion 12, so as to form a step 14 on the first surface 101, which is located at the junction of the first docking portion 12 and the second docking portion 13.

[0075] In the first embodiment of this utility model, when manufacturing the electrical connector 100, as follows: Figure 6 As shown, conductive terminals 2 connected to the first strip 32 are first formed. At this time, adjacent conductive terminals 2 are connected to each other by the connecting strip 31; as shown Figure 4 and Figure 5 As shown, the conductive terminal 2 connected to the first material strip 32 is then embedded in the insulating body 1; next, the connecting material strip 31 is cut off; finally, the first material strip 32 is broken off.

[0076] like Figures 7 to 16 As shown, unlike the first embodiment described above, in the second and third embodiments of this utility model, the first terminal portion 21 is in the form of a closed ring, and the second terminal portion 23 has a connecting portion 232 connected to the first terminal portion 21. The connecting portion 232 and the second contact portion 203 are disposed at opposite ends of the second terminal portion 23.

[0077] In this embodiment, the connecting portion 232 overlaps with the annular first terminal portion 21 and is further fixed by welding. The connecting portion 232 is connected to the side of the first terminal portion 21 opposite to the first contact portion 101, and the connecting portion 232 is embedded inside the first mating portion 12.

[0078] Furthermore, such as Figure 9 and Figure 12 As shown, in the second embodiment of this utility model, each second terminal portion 23 has a connecting portion 232 connected to the first terminal portion 21. Each first terminal portion 21 has a plurality of first connecting portions 211 connected to the second material strip 34. like Figure 16 As shown, each of the second terminal portions 23 has two connecting portions 232 connected to the first terminal portion 21. The two connecting portions 232 are spaced apart in the circumferential direction of the first terminal portion 21 and are arranged side by side in the arrangement direction of the second terminal portions 23, and their extension directions are perpendicular to the arrangement direction of the second terminal portions 23.

[0079] In the second and third embodiments of this utility model, when manufacturing the electrical connector 100, a second terminal portion 23 connected to the first material strip 32 and a first terminal portion 21 connected to the second material strip 34 are first formed. At this time, adjacent first terminal portions 21 are connected to each other by the connecting material strip 31. The second terminal portion 23 and the first terminal portion 21 are welded together to form a conductive terminal 2. The conductive terminal 2 connected to the first material strip 32 and the second material strip 34 is then embedded in the insulating body 1. Next, the connecting material strip 31 is cut off. Finally, the first material strip 32 and the second material strip 34 are broken off.

[0080] Please refer to Figures 17 to 20 The diagram shows a telescopic adapter 1000 of this invention. The telescopic adapter 1000 includes a first cover 400, a second cover 500, and a telescopic cable 600. The telescopic adapter 1000 also includes the aforementioned electrical connector 100 and a mating connector 700 rotatably in contact with the electrical connector 100. The electrical connector 100 and the mating connector 700 are housed within the first cover 400 and the second cover 500, and the telescopic cable 600 is connected to the mating connector 700.

[0081] Specifically, please refer to Figures 18 to 20 As shown, in this utility model, the docking connector 700 includes a docking body 71 and a docking terminal 72 embedded and fixed in the docking body 71. The docking body 71 has a pivot connection portion 711 and a first docking area 712 disposed on both sides of the pivot connection portion 711. The docking terminal 72 has a first contact arm 721 disposed in the first docking area 712 and a main body portion 723 connecting the first contact arm 721. The first contact arm 721 has a first docking contact portion 7212 that exposes the docking body 71 outward.

[0082] Furthermore, participants Figure 20 As shown, the main body 723 includes a first fixing part 7231 surrounding each first contact arm 721 and a connecting arm 7232 connecting the first fixing parts 7231. The first fixing part 7231 and the connecting arm 7232 are both embedded and fixed in the docking body 71.

[0083] In this embodiment, the first fixing part 7231 is frame-shaped, and the first contact arm 721 is connected to at least one of the fixing edges of the first fixing part 7231.

[0084] The docking body 71 is also flat, and it further has a second docking region 713 located between the first docking regions 712. The docking terminal 72 has a second docking contact portion 724 disposed in the second docking region 713. The second docking contact portion 724 is flat and has an end portion 7241 that exposes the insulating body outward. The second docking contact portion 724 is electrically connected to the telescopic cable 600.

[0085] In the illustrated embodiment, the docking body 71 further includes the third docking region 714, and the docking terminal further includes a second contact arm 725 connected between the first contact arms 721, the second contact arm 725 being disposed in the third docking region 714. The main body 723 further includes a second fixing portion 7234 surrounding the second contact arm 725, the second fixing portion 7234 being embedded and fixed to the docking body 71.

[0086] In other embodiments, the docking body 71 may only have the first docking area 712 and the second docking area 713, without the third docking area 714. In this case, the first contact arm 721 is symmetrically arranged with the pivot connection portion 711 as the center, so that the first contact arms 721 on both sides can make even contact with the annular conductive terminal 2 when rotating.

[0087] In summary, the electrical connector 100 and telescopic adapter 1000 of this invention simplify the manufacturing process and reduce the manufacturing cost of the electrical connector 100 by embedding the conductive terminal 2 within the insulating body 1. Simultaneously, signals can be directly transmitted between the first contact portion 201 and the second contact portion 203 of the conductive terminal 2, resulting in a strong ability to transmit large currents. Furthermore, the material and thickness of the conductive terminal 2 can be flexibly adjusted according to requirements. Additionally, the insulating body 1 effectively fixes the position of the conductive terminal 2, ensuring reliable contact with the mating connector 700, thereby guaranteeing continuous and stable electrical contact between the mating connector 700 and the electrical connector 100 at any rotation angle. The electrical connector 100 of this invention enables automated production with high process efficiency, further reducing costs.

[0088] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. An electrical connector, characterized in that: The device includes an insulating body and a plurality of conductive terminals embedded and fixed within the insulating body. The insulating body has a first mating portion and a second mating portion connected to the first mating portion. The conductive terminals have a first contact portion exposed on the surface of the first mating portion and a second contact portion exposed on the surface of the second mating portion. The first contact portion is arranged in a ring shape.

2. The electrical connector according to claim 1, characterized in that, The insulating body is flat and has a first surface and a second surface facing away from each other. The first contact portion is exposed on the first surface. At least two conductive terminals are provided. The two annular first contact portions corresponding to the at least two conductive terminals are coaxially arranged and spaced apart in the radial direction.

3. The electrical connector according to claim 2, characterized in that, Each conductive terminal has a first terminal portion arranged in a ring shape and a second terminal portion connected to the first terminal portion; the first contact portion is formed on one side surface of the first terminal portion, and the second contact portion is formed on one side surface of the second terminal portion.

4. The electrical connector according to claim 3, characterized in that, The first terminal portion is fixed to the first mating portion, the first mating portion having at least one limiting groove penetrating the second surface, and at least part of the other side surface of the first terminal portion opposite to the first contact portion is exposed in the limiting groove.

5. The electrical connector according to claim 4, characterized in that, The limiting groove is at least partially disposed through the first surface and the second surface.

6. The electrical connector according to claim 4, characterized in that, At least a portion of the first terminal portion has a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion of the same first terminal portion are disposed on both sides in the radial direction and exposed outward from the limiting groove.

7. The electrical connector according to claim 3, characterized in that, The second terminal portion has an end portion that exposes the insulating body outward.

8. The electrical connector according to claim 7, characterized in that, The second terminal portion is fixed to the second mating portion, the second contact portion is exposed on the second surface, the second mating portion has at least one positioning groove penetrating the first surface, and the upper part of the second terminal portion, on the other side of the surface opposite to the second contact portion, is exposed in the positioning groove.

9. The electrical connector according to claim 3, characterized in that, The first terminal portion is in the form of a closed ring, and the second terminal portion has a connecting portion connected to the first terminal portion. The connecting portion and the second contact portion are disposed at opposite ends of the second terminal portion.

10. The electrical connector according to claim 3, characterized in that, The first terminal portion has a notch formed by breaking in its circumferential direction and a pair of ends that are spaced apart from the notch, one of the ends being connected to the second terminal portion.

11. The electrical connector according to claim 10, characterized in that, The second terminal portion is integrally connected to one of the said ends.

12. The electrical connector according to claim 11, characterized in that, The second terminal portion is offset from the first terminal portion in the thickness direction of the insulating body. The conductive terminal also has a turning portion connected to the first terminal portion. The turning portion extends in the same direction as the second terminal portion. The conductive terminal also has a step portion connecting the turning portion to the second terminal portion.

13. A telescopic adapter, comprising a first cover, a second cover, and a telescopic cable, characterized in that, The telescopic adapter further includes an electrical connector as described in any one of claims 1 to 12 and a mating connector rotatably in contact with the electrical connector, the electrical connector and the mating connector being housed in the first cover and the second cover, and the telescopic cable being connected to the mating connector.

14. The telescopic adapter according to claim 13, characterized in that, The docking connector includes a docking body and a docking terminal embedded and fixed in the docking body. The docking body has a pivot connection portion and a first docking area disposed on both sides of the pivot connection portion. The docking terminal has a first contact arm disposed in the first docking area and a main body portion connecting the first contact arm. The first contact arm has a first docking contact portion that exposes the docking body outward.

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