Rotary interface connector and rotary connection structure

Abstract

The utility model discloses a rotary interface connector and a rotary connection structure, and the rotary interface connector is characterized in that at least two groups of conductive elements are correspondingly arranged on the opposite end faces of a first carrier and a second carrier, and an elastic contact piece is pressed between each group of conductive elements. The at least two sets of conductive elements are arranged on the two sides of the rotary interface connector, the at least two sets of conductive elements are connected to corresponding external devices through wires respectively, so that electric signal transmission between different external devices is achieved, and due to the arrangement of the conductive loops, the two external devices arranged on the two sides of the rotary interface connector can independently drive the corresponding shells to rotate around the central axis. And in the rotating process, the elastic contact piece can always keep conductive connection with the conductive element, so that the rotary interface connector and the rotary connection structure adopting the rotary interface connector have the advantages of stability and reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially relates to a rotary interface connector and rotary connection structure. BACKGROUND

[0002] In electronic and electrical equipment, there are many structures involving rotary interface, how to ensure the reliable and stable contact of electrical signal at both ends of the rotary structure is the key point of the design of such connector. Most of the existing connectors use sheet cantilever terminals to realize the electrical transmission of the rotary interface, but in the dynamic connection of continuous rotation, the stress condition of the simple sheet terminal contact is not stable enough, and the problem of unstable contact is prone to occur after long-term use. SUMMARY

[0003] Therefore, the utility model discloses a rotary interface connector and rotary connection structure to solve the technical problems mentioned in the background art.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme of a rotary interface connector for connecting external devices arranged on the opposite sides of the rotary interface connector, comprising a first shell, a second shell covered outside the first shell and freely rotatable relative to the first shell, and a first carrier and a second carrier respectively arranged inside the first shell and the second shell, the opposite end faces of the first carrier and the second carrier are correspondingly provided with at least two groups of annular conductive elements, and each group of conductive elements is provided with an elastic contact element electrically connected with the conductive element, and the at least two groups of conductive elements are respectively connected to the corresponding external devices through wires to realize the electrical signal transmission between different external devices.

[0005] In some embodiments, a center hole is provided through the first shell, the second shell, the first carrier and the second carrier along the center axis direction of the rotary interface connector, a center fixed shaft is arranged in the center hole, a limiting ring is arranged on the outer peripheral wall of the center fixed shaft in the circumferential direction, and the first carrier and the second carrier are symmetrically arranged on the opposite sides of the limiting ring.

[0006] In some embodiments, at least one positioning block / positioning groove is arranged on the inner wall of the first shell and the second shell in the circumferential direction, and at least one positioning groove / positioning block matched with the positioning block / positioning groove is arranged on the outer edge of the first carrier and the second carrier in the circumferential direction.

[0007] In some embodiments, the at least two groups of conductive elements are coaxially arranged, and the elastic contact element is annular and is arranged on the inner side of the corresponding group of conductive elements.

[0008] In some embodiments, isolation rings are arranged between different elastic contact pieces and between the outermost elastic contact piece and the first shell / second shell.

[0009] In some embodiments, the isolation rings have the same height and are concentrically arranged between different isolation rings, the elastic contact pieces are arranged in a wavy manner along their extending direction, and the peaks and valleys of the elastic contact pieces protrude from the upper and lower end surfaces of the isolation rings, respectively, when the elastic contact pieces are pressed inside the corresponding group of conductive elements.

[0010] In some embodiments, the first carrier and the second carrier have welding windows exposing the conductive elements on their two opposite end surfaces, one end of the wire is electrically connected to the conductive element at the welding window, and the other end of the wire is electrically connected to the corresponding external device after being pulled out of the first shell / second shell.

[0011] In some embodiments, the first shell and the second shell are provided with wire windows for the wires to pass through.

[0012] In some embodiments, the first carrier and the second carrier are PCB boards, and the conductive elements are solder pads on the first carrier and the second carrier.

[0013] The utility model discloses a kind of rotary connection structures, including first external device, second external device and above-mentioned rotary interface connector, the first external device and second external device are respectively arranged in the opposite sides of rotary interface connector, and both are fixedly connected between the rotary interface connector;At least two groups of conductive elements are respectively connected to first external device and second external device by wire, to realize the electrical signal transmission between first external device and second external device.

[0014] Compared with the prior art, the utility model has the beneficial effects that: the rotary interface connector of the utility model is correspondingly provided with at least two groups of conductive elements on the opposite end surfaces of the first carrier and the second carrier, each group of conductive elements is provided with an elastic contact piece, and the at least two groups of conductive elements are respectively connected to the corresponding external device by wire to realize the electrical signal transmission between different external devices. The arrangement of the above-mentioned conductive loop enables the two external devices arranged on the two sides of the rotary interface connector to independently drive the corresponding shell to rotate around the center axis, and the elastic contact piece always maintains conductive connection with the conductive element during rotation, thereby making the rotary interface connector and the rotary connection structure using the rotary interface connector have the advantages of stability and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

[0016] Figure 1 A structure schematic view of the rotary interface connector provided by the utility model is shown in the figure.

[0017] Figure 2 A Figure 1 An exploded schematic view of the rotary interface connector shown in the figure.

[0018] Figure 3 And Figure 4 A Figure 1 A structure schematic view of the first carrier and the second carrier in the rotary interface connector shown in the figure.

[0019] Figure 5 A Figure 1 A structure schematic view of the elastic contact in the rotary interface connector shown in the figure.

[0020] Figure 6 A Figure 5 A running schematic view of the elastic contact in the first shell / second shell shown in the figure.

[0021] Figure 7 A structure schematic view of the rotary connection structure provided by the utility model.

[0022] The figure is marked as follows:

[0023] 1, rotary interface connector; 2, first external device; 3, second external device;

[0024] 10, first shell; 101, center hole; 102, positioning block;

[0025] 20, second shell; 201, wire window;

[0026] 30, first carrier; 301, positioning groove; 302, welding window;

[0027] 40, second carrier;

[0028] 50, conductive element;

[0029] 60, elastic contact;

[0030] 70, center fixed shaft; 701, limiting ring;

[0031] 80, isolation ring. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangement, numerical expression and numerical value of the components and steps set forth in these embodiments do not limit the scope of the utility model.

[0033] The following description of at least one example embodiment is merely exemplary in nature and is in no way intended to limit the application or its application or uses.

[0034] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus can be considered part of the present application.

[0035] In all of the compositions and methods shown and discussed herein, any specific values should be interpreted as merely exemplary, and are not intended to be limiting. Thus, other examples of the exemplary embodiments can have different values.

[0036] A rotary interface connector is used to connect external devices arranged on opposite sides of the rotary interface connector 1, specifically the first external device 2 and the second external device 3 arranged on opposite sides of the rotary interface connector 1, and both are fixedly connected with the rotary interface connector 1. Please refer to Figure 7 .

[0037] As Figure 1 and Figure 2As shown, the rotary interface connector 1 includes a first housing 10, a second housing 20 covering the outside of the first housing 10 and rotatable relative to the first housing 10, and a first carrier 30 and a second carrier 40 respectively installed inside the first housing 10 and the second housing 20. At least two sets of annular conductive elements 50 are correspondingly arranged on the opposite end faces of the first carrier 30 and the second carrier 40. An elastic contact 60 is pressed between each set of conductive elements 50, and at least two sets of conductive elements 50 are respectively connected to the corresponding first external device 2 and second external device 3 via wires. Generally, two sets of conductive elements 50 are provided, respectively corresponding to… The positive and negative terminals of the power supply are connected. A set of conductive elements 50 connected to the positive terminal is connected to the positive terminals of the first external device 2 and the second external device 3 via wires, and a set of conductive elements 50 connected to the negative terminal is connected to the negative terminals of the first external device 2 and the second external device 3 via wires, thereby enabling electrical signal transmission between the first external device 2 and the second external device 3. Of course, the conductive elements 50 can also be set to three sets, that is, based on the aforementioned two sets of conductive elements 50, an additional set of grounded conductive elements 50 is added, which is connected to the ground terminals of the first external device 2 and the second external device 3 via wires. When the rotary interface connector 1 of this utility model is working, since the elastic contact 60 is an independent part that can rotate freely, when the first external device 2 and the second external device 3 drive the corresponding housings (first housing 10 and second housing 20) to rotate around the central axis, the elastic contact 60 is not constrained by the structures at both ends, so the elastic contact 60 can always maintain a conductive connection with the conductive element 50. Since the elastic contact 60 and the conductive element 50 have a multi-contact structure, the connection is stable and reliable.

[0038] In one implementation, such as Figure 1 As shown, a central hole 101 is provided through the first housing 10, the second housing 20, the first carrier 30, and the second carrier 40 along the central axis of the rotary interface connector 1. A central fixing shaft 70 passes through the central hole 101, and there is a clearance fit between the central fixing shaft 70 and the central hole 101, so that the first housing 10 and the first carrier 30, as well as the second housing 20 and the second carrier 40, can rotate around the central fixing shaft 70 under the drive of the corresponding external device. Furthermore, a limiting ring 701 is provided circumferentially on the outer peripheral wall of the central fixing shaft 70. The first carrier 30 and the second carrier 40 are symmetrically sandwiched on opposite sides of the limiting ring 701 to limit the first carrier 30 and the second carrier 40 in the axial direction and prevent the first carrier 30 and the second carrier 40 from moving in the axial direction.

[0039] In one implementation, such as Figures 2-4As shown, at least one positioning block 102 / positioning groove 301 is arranged on the inner wall of the first shell 10 and the second shell 20 in a circumferential direction, and at least one positioning groove 301 / positioning block 102 matched with the positioning block 102 / positioning groove 301 is arranged on the outer edge of the first carrier 30 and the second carrier 40 in a circumferential direction. The first carrier 30 and the second carrier 40 are respectively installed in the first shell 10 and the second shell 20 through the matched positioning block 102 and the positioning groove 301. In order to facilitate assembly, the positioning block 102 is generally arranged on the first shell 10 and the second shell 20, and then the positioning groove 301 is arranged on the outer edge of the first carrier 30 and the second carrier 40. When assembling, the positioning groove 301 arranged on the outer edge of the first carrier 30 and the second carrier 40 is aligned with the positioning block 102 arranged on the first shell 10 and the second shell 20, so that the assembly between the two can be realized.

[0040] In an embodiment, as shown in Figure 1 、 Figure 2 and Figure 6 , at least two groups of conductive elements 50 are arranged coaxially, and the elastic contact pieces 60 are annular as a whole and are pressed on the inner side of the corresponding group of conductive elements 50, so that the elastic contact pieces 60 and the conductive elements 50 are in multi-point cooperation, and the connection is stable and reliable. The isolation rings 80 are arranged between different elastic contact pieces 60 and between the outermost elastic contact piece 60 and the first shell 10 / second shell 20. The isolation rings 80 play a limiting role in the installation position of the elastic contact pieces 60, and on the other hand, can prevent short circuit between multiple elastic contact pieces 60. For details, please refer to Figure 6 .

[0041] Further, as shown in Figure 6 , the heights of different isolation rings 80 are the same and the different isolation rings 80 are arranged concentrically, and the elastic contact pieces 60 are arranged in a wave shape in their direction. When the elastic contact pieces 60 are pressed on the inner side of the corresponding group of conductive elements 50, the peaks and valleys of the elastic contact pieces 60 protrude from the upper and lower end surfaces of the isolation rings 80, respectively, to ensure that the peaks and valleys of the elastic contact pieces 60 can be in conductive connection with the corresponding group of conductive elements 50, and realize stable electrical signal transmission.

[0042] In an embodiment, as shown in Figure 4As shown, the first carrier 30 and the second carrier 40 have welding windows 302 exposing the conductive elements 50 on the two opposite end faces, one end of the wire is electrically connected to the conductive element 50 at the welding window 302, generally welded, and the other end is electrically connected to the corresponding external device after passing out of the first shell 10 / second shell 20. The welding window 302 is arranged to facilitate the electrical connection between the wire and the conductive element 50, and to facilitate the wiring of the wire. Specifically, the first carrier 30 and the second carrier 40 are PCB boards, the conductive elements 50 are pads welded on the first carrier 30 and the second carrier 40, the pads are annular as a whole and are embedded on the PCB board, and the other end face of the PCB board is provided with a welding window 302 exposing the conductive element 50.

[0043] Further, as shown in the drawings, Figure 6 In order to facilitate the other end of the wire to be drawn out of the first shell 10 / second shell 20, the first shell 10 and the second shell 20 are provided with wire windows 201 for the wire to pass out.

[0044] The utility model discloses a rotary connection structure, as shown in the drawings, Figure 7 The first external device 2 and the second external device 3 are arranged on the opposite sides of the rotary interface connector 1 respectively, and are fixedly connected with the rotary interface connector 1. At least two groups of conductive elements 50 are connected to the first external device 2 and the second external device 3 through wires to realize the electrical signal transmission between the first external device 2 and the second external device 3. When the rotary interface connector 1 works, the elastic contact piece 60 is an independent part and can rotate freely. When the first external device 2 and the second external device 3 drive the corresponding shells to rotate around the center axis respectively, the elastic contact piece 60 is not constrained by the two end structures, so that the elastic contact piece 60 can always maintain the electrical connection with the conductive elements 50. Since the elastic contact piece 60 and the conductive elements 50 are a multi-contact structure, the rotary interface connector 1 and the rotary connection structure using the rotary interface connector 1 have the advantages of stability and reliability.

[0045] Although some specific embodiments of the utility model have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A rotary interface connector for connecting external devices disposed on opposite sides of the rotary interface connector, characterized by: The application relates to a rotating interface connector, which comprises a first shell, a second shell arranged outside the first shell and capable of freely rotating relative to the first shell, a first carrier and a second carrier arranged inside the first shell and the second shell respectively, and at least two groups of annular conductive elements arranged on the opposite end faces of the first carrier and the second carrier correspondingly, wherein elastic contact pieces are arranged between each group of conductive elements to electrically connect the conductive elements, and the at least two groups of conductive elements are connected to corresponding external devices through wires to realize electrical signal transmission between different external devices.

2. A rotary interface connector according to claim 1, wherein: A central hole is arranged in the first shell, the second shell, the first carrier and the second carrier along the central axis direction of the rotating interface connector, a central fixed shaft is arranged in the central hole, a limiting ring is arranged on the outer peripheral wall of the central fixed shaft in the circumferential direction, and the first carrier and the second carrier are symmetrically arranged on opposite sides of the limiting ring.

3. A rotary interface connector according to claim 1, wherein: At least one positioning block / positioning groove is arranged on the inner wall of the first shell and the second shell in the circumferential direction, and at least one positioning groove / positioning block matched with the positioning block / positioning groove is arranged on the outer edge of the first carrier and the second carrier in the circumferential direction.

4. A rotary interface connector according to claim 1, wherein: The at least two groups of conductive elements are coaxially arranged, and the elastic contact pieces are annular and arranged on the inner side of the corresponding group of conductive elements.

5. A rotary interface connector according to claim 4, wherein: Isolating rings are arranged between different elastic contact pieces and between the outermost elastic contact piece and the first shell / second shell.

6. A rotary interface connector according to claim 5, wherein: The heights of the different isolating rings are the same, the different isolating rings are concentrically arranged, the elastic contact pieces are arranged in a wave shape in the circumferential direction, and the wave crests and wave troughs of the elastic contact pieces protrude from the upper and lower end faces of the isolating ring when the elastic contact pieces are arranged on the inner side of the corresponding group of conductive elements.

7. A rotary interface connector according to claim 1, wherein: Welding windows are arranged on the opposite end faces of the first carrier and the second carrier to expose the conductive elements, one end of the wire is electrically connected with the conductive elements at the welding window, and the other end of the wire is electrically connected to the corresponding external device after penetrating out of the first shell / second shell.

8. A rotary interface connector according to claim 7, wherein: Wire windows are arranged on the first shell and the second shell for wire penetration.

9. A rotary interface connector according to claim 1, wherein: The first carrier and the second carrier are PCB boards, and the conductive elements are soldering pads on the first carrier and the second carrier.

10. A rotary connection structure comprising a first external device, a second external device, and the rotary interface connector of any one of claims 1-9, wherein: The first external device and the second external device are arranged on opposite sides of the rotating interface connector and are fixedly connected with the rotating interface connector. The at least two groups of conductive elements are connected to the first external device and the second external device through wires to realize electrical signal transmission between the first external device and the second external device.

Images