Three-channel coaxial rotation high-frequency slip ring

Abstract

The invention belongs to the technical field of radio frequency signal transmission, and particularly relates to a three-channel coaxial rotation high-frequency slip ring which comprises a first shell, and at least one rotation single joint is fixed in the first shell. Each rotary single joint comprises a stator fixedly connected to the interior of the corresponding first shell, a first wiring part fixedly connected to the interior of the stator, rotors rotationally connected to one side of the stator and used for electrical transmission, second wiring parts fixedly connected to the interiors of the rotors, and linkage parts for connecting and synchronously driving the two adjacent rotors; the three rotary single joints are adopted, the isolation degree between channels is guaranteed, the problem of multi-channel radio frequency crosstalk is solved, three radio frequency signals can be transmitted at the same time, the transmission stability is guaranteed, high-isolation parallel transmission is achieved, a complex radio frequency system is supported, and the three-joint hollow shaft slip ring is suitable for large and medium-sized hollow shaft slip ring systems. Compared with a single-bearing slip ring, the clearance between the bearings is reduced, fluctuation is reduced, and the stability of the slip ring is improved.

Description

Technical Field

[0001] This application relates to the field of radio frequency signal transmission technology, specifically a three-channel coaxial rotating high-frequency slip ring. Background Technology

[0002] An electrical slip ring, also known as a slip ring, rotary electrical interface, conductive slip ring, or bus ring, is an electromechanical device used to transmit current, power, or data signals between a stationary and a rotating structure. Its core function is to solve the problem of continuous electrical connection between rotating and stationary parts, preventing wires from becoming entangled due to rotation.

[0003] Currently, electric slip rings typically use brush wire contact to transmit radio frequency signals, relying on traditional conductive ring paths (transmitting radio frequency signals through ordinary loops). When multiple radio frequency signals need to be transmitted simultaneously, there are problems such as poor electrical performance (signal distortion / impedance mismatch) and insufficient isolation leading to severe signal crosstalk. Summary of the Invention

[0004] The purpose of this application is to provide a three-channel coaxial rotating high-frequency slip ring to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a three-channel coaxial rotating high-frequency slip ring, including a housing.

[0006] The housing is fixed with at least one rotating single joint, and the rotating single joint includes a stator fixed inside the housing, a wiring part one fixed inside the stator, a rotor rotatably connected to one side of the stator for electrical transmission, a wiring part two fixed inside the rotor, and a linkage part for connecting two adjacent rotors for synchronous transmission.

[0007] One of the rotating single-joint rotors extends from housing one and housing two is fixed to the outer wall of the rotor. Multiple connectors one are fixed inside housing one and are used to connect to multiple wiring parts one via a wire. Multiple connectors two are fixed to one side of housing two and are used to connect to multiple wiring parts two via a wire.

[0008] In one embodiment, the linkage includes two stacked blocks respectively fixed to one side of two rotors, two connecting rods respectively fixed to one side of the two stacked blocks, and through slots opened inside the two connecting rods to facilitate wire threading. The two connecting rods are rotatably connected inside the two stators respectively. One end of the two stators is fixed to the two connecting rods respectively, and the other end of the two stators is fixed to one side of the two rotors respectively.

[0009] In one embodiment, the two stacks are located inside the first housing, one end of one connecting rod extends into one of the stacks and is fixed to the side of the rotor, and one end of the other connecting rod extends into the second housing and is fixed to the side of the rotor inside the second housing.

[0010] In one embodiment, a plurality of connecting seats for connecting adjacent rotors are fixed inside the first housing, and the two ends of the connecting seat are fixed to the adjacent two rotors.

[0011] In one embodiment, the connecting seat and the outer surface of the stator are provided with lead grooves for threading.

[0012] In one embodiment, the stator is fixed on one side of the contact ring and the conductor, the rotor is fixed on one side of the claw, and the claw is fixed on one side of the elastic sheet in contact with the contact ring.

[0013] In one embodiment, the stator is provided with a first insertion hole inside, and the first wiring part is fixed in the first insertion hole, the first insertion hole is fixed with an insulator, and the connector of the first wiring part passes through the insulator and is connected with the contact ring.

[0014] In one embodiment, the rotor is provided with a second insertion hole inside, and the second wiring part is fixed in the second insertion hole, the second insertion hole is fixed with an insulator, and the connector of the second wiring part passes through the insulator and is connected with the claw.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The present application adopts three rotating single joints to ensure the isolation degree between channels, solve the problem of multi-path radio frequency crosstalk, can transmit three radio frequency signals at the same time and ensure the stability of transmission, realize high isolation degree parallel transmission, support complex radio frequency system, and is suitable for large and medium-sized hollow shaft slip ring system; compared with single bearing slip ring, the play between bearings is reduced, the fluctuation is reduced, and the stability of the slip ring is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The overall structure of the present application is shown Figure 1 ;

[0018] Figure 2 The overall structure of the present application is shown Figure 2 ;

[0019] Figure 3 The overall structure of the present application is shown

[0020] Figure 4 The overall structure of the present application is shown

[0021] Figure 5 is a sectional view of the connecting rod and the stack of the present application;

[0022] Figure 6 is a sectional view of the connecting seat of the present application;

[0023] Figure 7 is an assembly schematic view of multiple rotary single joints and the connecting seat of the present application.

[0024] In the figure: 1, housing one; 11, joint one; 2, housing two; 21, joint two; 5, rotary single joint; 51, stator; 511, socket one; 512, wiring part one; 513, insulator one; 514, contact ring; 515, conductor; 52, rotor; 521, claw piece; 522, elastic piece; 523, socket two; 524, insulator two; 525, wiring part two; 6, connecting seat; 61, lead slot; 7, stack; 8, connecting rod; 81, through slot. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] Embodiment:

[0028] Please refer to Figures 1-7 The present application provides a technical solution: a three-channel coaxial rotary high-frequency slip ring, comprising a housing one 1,

[0029] The housing one 1 is fixed with not less than one rotary single joint 5 inside, and the rotary single joint 5 comprises a stator 51 fixed inside the housing one 1, a wiring part one 512 fixed inside the stator 51, a rotor 52 rotatably connected on one side of the stator 51 for electrical transmission, a wiring part two 525 fixed inside the rotor 52, and a linkage part connecting and synchronously driving adjacent two rotors 52;

[0030] One of the rotors 52 of the rotating single joint 5 extends from the housing 1 and the outer wall of the rotor 52 is fixedly connected to the housing 2. The housing 1 has multiple connectors 11 fixedly connected inside, and the connectors 11 are used to connect to multiple wiring parts 512 via wires. The housing 2 has multiple connectors 21 fixedly connected to one side, and the connectors 21 are used to connect to multiple wiring parts 525 via wires.

[0031] The linkage includes two stacked blocks 7 respectively fixed to one side of two rotors 52, two connecting rods 8 respectively fixed to one side of two stacked blocks 7, and through slots 81 opened inside the two connecting rods 8 to facilitate wire threading. The two connecting rods 8 are rotatably connected inside two stators 51 respectively. One end of the two stators 51 is fixed to the two connecting rods 8 respectively, and the other end of the two stators 51 is fixed to one side of the two rotors 52 respectively.

[0032] The housing 1 has a plurality of connecting seats 6 fixedly connected inside for connecting adjacent rotors 52, and the two ends of the connecting seats 6 are respectively fixedly connected to two adjacent rotors 52.

[0033] Both the connecting seat 6 and the stator 51 have lead wire grooves 61 on their outer surfaces for threading wires.

[0034] By adopting the above scheme, the three stators 51 located inside the housing 1 are connected by two connecting seats 6. Each of the three stators 51 has a coaxial connecting wire (not shown in the attached drawings) connected to a wiring section 512 inside. The other ends of two of these coaxial connecting wires pass through the lead wire groove 61 and reach the left side inside the housing 1 (the side near the connector 11). The two coaxial connecting wires exiting the lead wire groove 61 are connected to two of the connectors 11. The coaxial connecting wire connected to the wiring section 512 on the stator 51 closest to connector 11 is directly connected to the other connector 11, thus achieving… Electrical signal transmission of the three stators 51; two adjacent rotors 52 are connected and driven by connecting rods 8 and stacked blocks 7. Coaxial connecting wires are also connected to the wiring portions 525 inside the two rotors 52. These two coaxial connecting wires enter the through slots 81 inside the connecting rods 8 from inside the stacked blocks 7, and then exit from the connecting rods 8 inside the housing 2 to connect to two connectors 21 inside the housing 2. The coaxial connecting wire connected to the wiring portion 525 on the rotor 52 inside the housing 2 is directly connected to the other connector 21, realizing the electrical signal transmission of the three rotors 52; see reference here. Figure 3 ,exist Figure 3 The direction of the coaxial connecting line connected to the first connection part 512 and the second connection part 525 is shown by arrows in the figure;

[0035] When the shell two 2 rotates, the rotor 52 fixed inside the shell two 2 rotates, the rotor 52 inside the shell two 2 drives the two rotors 52 located inside the shell one 1 to rotate through the stack 7 and the connecting rod 8, realizing the coaxial rotation of the three channels and the transmission of the three channel electric signals at the same time; ensuring the isolation degree between the channels, solving the multi-channel radio frequency crosstalk problem, being able to transmit three radio frequency signals at the same time and ensuring the stability of the transmission, realizing high isolation degree parallel transmission, supporting complex radio frequency systems, and being suitable for large and medium-sized hollow shaft slip ring systems; compared with the single bearing slip ring, the play between the bearings is reduced, the fluctuation is reduced, and the stability of the slip ring is improved.

[0036] The two stack 7 are located inside the shell one 1, one end of one of the connecting rod 8 extends into the inside of one of the stack 7 and is fixed to one side of the rotor 52, and one end of the other connecting rod 8 extends into the inside of the shell two 2 and is fixed to one side of the rotor 52 inside the shell two 2.

[0037] Please refer to Figure 4 and Figure 5 , the stator 51 is fixed on one side of the contact ring 514 and the conductor 515, the rotor 52 is fixed on one side of the claw piece 521, and the claw piece 521 is fixed on one side of the elastic piece 522 in contact with the contact ring 514, which can drive the elastic piece 522 to rotate when the rotor 52 rotates, and the elastic piece 522 rotates and moves in contact with the contact ring 514, realizing the electric signal transmission between the stator 51 and the rotor 52.

[0038] The stator 51 is provided with a plug hole one 511, and a wiring part one 512 is fixed in the plug hole one 511, the plug hole one 511 is fixed with an insulator one 513, the connector of the wiring part one 512 passes through the insulator one 513 and is connected with the contact ring 514, the rotor 52 is provided with a plug hole two 523, and a wiring part two 525 is fixed in the plug hole two 523, the plug hole two 523 is fixed with an insulator two 524, and the connector of the wiring part two 525 passes through the insulator two 524 and is connected with the claw piece 521.

[0039] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims.

[0040] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes can be made in detail without departing from the principles and spirit of the application. The scope of the application is therefore defined by the appended claims and their equivalents.

Claims

1. A three-channel coaxial rotating high-frequency slip ring, comprising a housing (1), characterized in that: The housing (1) has at least one rotating single joint (5) fixed inside, and the rotating single joint (5) includes a stator (51) fixed inside the housing (1), a wiring part (512) fixed inside the stator (51), a rotor (52) rotatably connected to one side of the stator (51) for electrical transmission, a wiring part (525) fixed inside the rotor (52), and a linkage part that connects two adjacent rotors (52) for synchronous transmission. One of the rotors (52) of the rotating single joint (5) extends from the housing one (1) and the outer wall of the rotor (52) is fixed to the housing two (2). The housing one (1) has a plurality of connectors one (11) fixed inside, and the connectors one (11) are used to connect to a plurality of wiring parts one (512) through a wire. The housing two (2) has a plurality of connectors two (21) fixed on one side, and the connectors two (21) are used to connect to a plurality of wiring parts two (525) through a wire.

2. The three-channel coaxial rotating high-frequency slip ring according to claim 1, characterized in that: The linkage includes two stacked blocks (7) respectively fixed to one side of two rotors (52), two connecting rods (8) respectively fixed to one side of two stacked blocks (7), and through slots (81) opened inside the two connecting rods (8) to facilitate wire threading. The two connecting rods (8) are rotatably connected inside two stators (51). One end of the two stators (51) is fixed to the two connecting rods (8), and the other end of the two stators (51) is fixed to one side of the two rotors (52).

3. The three-channel coaxial rotating high-frequency slip ring according to claim 2, characterized in that: Both stacked blocks (7) are located inside the first housing (1). One end of one of the connecting rods (8) extends into the interior of one of the stacked blocks (7) and is fixed to one side of the rotor (52). One end of the other connecting rod (8) extends into the interior of the second housing (2) and is fixed to one side of the rotor (52) inside the second housing (2).

4. The three-channel coaxial rotating high-frequency slip ring according to claim 3, characterized in that: The housing (1) has a plurality of connecting seats (6) for connecting adjacent rotors (52) fixed inside, and the two ends of the connecting seats (6) are respectively fixed to two adjacent rotors (52).

5. The three-channel coaxial rotating high-frequency slip ring according to claim 4, characterized in that: Both the connecting seat (6) and the stator (51) have lead grooves (61) for threading wires on their outer surfaces.

6. The three-channel coaxial rotating high-frequency slip ring according to claim 5, characterized in that: A contact ring (514) and a conductor (515) are fixedly connected to one side of the stator (51), and a claw (521) is fixedly connected to one side of the rotor (52), and a spring (522) that contacts the contact ring (514) is fixedly connected to one side of the claw (521).

7. The three-channel coaxial rotating high-frequency slip ring according to claim 6, characterized in that: The stator (51) has an insertion hole (511) inside, and a wiring part (512) is fixed in the insertion hole (511). An insulator (513) is fixed inside the insertion hole (511). The connector of the wiring part (512) passes through the insulator (513) and is connected to the contact ring (514).

8. The three-channel coaxial rotating high-frequency slip ring according to claim 7, characterized in that: The rotor (52) has a second insertion hole (523) inside, and the second wiring part (525) is fixed in the second insertion hole (523). The second insulator (524) is fixed inside the second insertion hole (523). The connector of the second wiring part (525) passes through the second insulator (524) and is connected to the claw plate (521).

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