An integrated photoelectric rotary connection device

Abstract

The present invention belongs to the field of precision instrument manufacturing and optoelectronic rotary transmission technology, and specifically relates to an integrated optoelectronic rotary connection device. The present invention includes a flange, a conductive slip ring mounted on the flange, and a fiber optic rotary connector fixed to the inside of the conductive slip ring through a fiber optic chuck; one end of the fiber optic rotary connector is connected to the transmitting optical terminal port, and the other end is connected to the receiving optical terminal; the transmitting optical terminal is embedded in the cavity of the flange; and the receiving optical terminal is embedded in the conductive slip ring. The present invention embeds the fiber optic rotary connector in the cavity of the conductive slip ring, reducing the axial size of the conductive slip ring. This structural method has obvious advantages in the field of rotary transmission with high requirements on axial size. The structural method is simple and compact, but covers a wide range of transmission signal types, minimizing the interference of high-power and high-current signal transmission on large data signals.

Description

Technical Field

[0001] The invention belongs to the technical field of precision instrument manufacturing and photoelectric rotation transmission, and particularly relates to an integrated photoelectric rotation connection device. Background Art

[0002] The integrated photoelectric rotary connection device is suitable for the rotational transmission of high-power, high-current, and large-data signal. Currently, there are several solutions to the current and signal rotational transmission, each with its own advantages and disadvantages:

[0003] Existing technical solution 1 (see Zhu Xiaodong, "High-Current Electric Rotary Connector," Invention Patent: 200910205329.0) is a typical columnar conductive slip ring design. It utilizes the relative rotational sliding contact between the conductive slip ring body (ring groove) and brushes to achieve uninterrupted transmission of current and signals, thereby preventing twisting damage to the cable during the rotational transmission of signals and current. The advantages of this invention patent are: the radial dimensions of the conductive slip ring body are relatively small, and the axial dimensions of the slip ring can be increased incrementally with the increase of signal transmission loops. Disadvantages: It is not suitable for environments with stringent axial dimensional requirements; as the number of loops increases, the arithmetic contact area between the loops and the brushes increases, thereby increasing the friction torque of the slip ring and affecting the rotation of the ring body; columnar slip rings are prone to wear debris accumulation, which can easily cause loop disconnection or short circuits.

[0004] The second existing technical solution (see Qu Cheng, "Disc-Type Conductive Slip Ring," Invention Patent No. 200720148827.2) utilizes a ring plate and a brush holder plate to achieve the rotational transmission of any electrical signal. The advantages of this type of slip ring are: the axial dimension of the conductive slip ring is small; as the number of rings increases, the radial (diameter) increases while the axial dimension remains constant; wear debris accumulation is virtually eliminated, ensuring safe and stable performance. A disadvantage is that as the number of rings increases, the radial dimension of the conductive slip ring increases, increasing the space required.

[0005] Existing technical solution three (see Mi Lei, Yao Shengli, et al., "An Fiber Optic Rotary Connector," Invention Patent No. 201010519403.9) utilizes a rotor, fiber collimator, stator, and fiber pigtails to achieve rotational signal transmission. The advantages of this type of slip ring are: by converting electrical signals into optical signals for rotational transmission, it can transmit large amounts of data and signals while being virtually immune to electromagnetic interference. However, its disadvantages are: the transmitted signal type is limited, requiring external electrical-to-optical and optical-to-electrical conversion modules at both ends, and it cannot transmit high-power signals.

[0006] Existing technical solution 4 (see Zhang Yimo et al., "Optoelectronic Hybrid Fiber Optic Rotary Connector", invention patent: 02148863.0) uses a combination of an optical fiber rotary connector and an optoelectronic conversion module to achieve rotational transmission of signals. This solution is similar to solution 3, except that the optoelectronic conversion module and the optical fiber rotary connector are placed in a combined bracket. Summary of the Invention

[0007] The purpose of the present invention is to overcome the defects of the prior art that a large space is required and a single signal is transmitted, and to provide an integrated photoelectric rotary connection device that can rotate and transmit both high-power current and large data volume signals.

[0008] The technical solution adopted by the present invention to solve its technical problem is:

[0009] An integrated optoelectronic rotary connection device comprises a flange, a conductive slip ring mounted on the flange, and a fiber optic rotary connector fixed inside the conductive slip ring via a fiber optic chuck; one end of the fiber optic rotary connector is connected to a transmitting optical terminal port, and the other end is connected to a receiving optical terminal; the transmitting optical terminal is embedded in the cavity of the flange; and the receiving optical terminal is embedded in the conductive slip ring.

[0010] Furthermore, the conductive slip ring includes a combination bracket mounted on the flange, a ring body assembly rotatably mounted inside the combination bracket through a bearing, a brush assembly mounted outside the ring body assembly, and a handle mounted on the ring body assembly.

[0011] Furthermore, an outer cover for protecting the brush assembly is provided on the outer side of the combined bracket.

[0012] Furthermore, a pressure plate for fixing the receiving optical terminal is provided on the flange.

[0013] Furthermore, a pressure plate for fixing the transmitting optical terminal is installed on the ring body assembly.

[0014] Furthermore, the combined bracket, the optical fiber chuck, the pressing plate and the flange are all fixedly connected by cross-recessed pan head screws.

[0015] Furthermore, a bearing end cover is provided at the connection between the flange and the conductive slip ring.

[0016] The beneficial effects of the integrated photoelectric rotary connection device of the present invention are:

[0017] 1. The present invention embeds the optical fiber rotary connector inside the cavity of the conductive slip ring, reducing the axial size of the conductive slip ring. This structural method has obvious advantages in the field of rotary transmission with high requirements on axial size. The structural method is simple and compact, but covers a wide range of transmission signal types.

[0018] 2. The present invention embeds the transmitting optical terminal inside the cavity of the flange and the receiving optical terminal inside the conductive slip ring cavity, which can transmit high-power, high-current signals separately from large data signals; and minimize the interference effect of high-power, high-current signal transmission on large data signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 is a cross-sectional view of an embodiment of the present invention;

[0021] Figure 2 2. It is a schematic diagram of the installation structure of the conductive slip ring and the optical fiber rotary connector according to an embodiment of the present invention;

[0022] Figure 3 2 is a schematic structural diagram of an optical fiber rotary connector according to an embodiment of the present invention.

[0023] In the figure: 1. Flange, 2. Conductive slip ring, 21. Combined bracket, 22. Ring body assembly, 23. Brush assembly, 24. Handle, 25. Outer cover, 3. Fiber optic chuck, 4. Fiber optic rotary connector, 5. Transmitting optical terminal, 6. Receiving optical terminal, 7. First pressure plate, 8. Second pressure plate, 9. Middle pressure plate, 10. Bearing end cover. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0025] like Figure 1-Figure 3The illustrated embodiment of an integrated optoelectronic rotary connection device of the present invention comprises a flange 1, a conductive slip ring 2 mounted on the flange 1, and a fiber optic rotary connector 4 secured within the conductive slip ring 2 via a fiber optic chuck 3. One end of the fiber optic rotary connector 4 is connected to a port of a transmitting optical terminal 5, and the other end is connected to a receiving optical terminal 6. The transmitting optical terminal 5 is embedded in the cavity of the flange 1; the receiving optical terminal 6 is embedded in the conductive slip ring 2. The present invention embeds the fiber optic rotary connector 4 within the cavity of the conductive slip ring 2, reducing the axial dimension of the conductive slip ring 2. This structural approach offers significant advantages in the field of rotary transmission, where axial dimension requirements are high. It is simple and compact, yet covers a wide range of transmission signal types.

[0026] Reference Figure 1 and Figure 2 In this embodiment of the present invention, the conductive slip ring 2 comprises an assembly bracket 21 mounted on the flange 1, a ring assembly 22 rotatably mounted within the assembly bracket 21 via a bearing, a brush assembly 23 mounted outside the ring assembly 22, and a handle 24 mounted on the ring assembly 22. A cover 25 is provided on the outside of the assembly bracket 21 to protect the brush assembly 23. The conductive slip ring 2 can be used in any electrical system that requires unrestricted continuous rotation to transmit power and data signals from a fixed structure to a rotating structure, enabling high-power, high-current signal transmission; a detailed description is not provided herein.

[0027] In this embodiment of the present invention, the flange 1 is provided with a first pressure plate 7 for securing the receiving optical terminal 6. An intermediate pressure plate 9 is provided on the side of the flange 1 to facilitate the installation and fixation of the optical fiber rotary connector 4, as well as to facilitate inspection and maintenance. The ring assembly 22 is provided with a second pressure plate 8 for securing the transmitting optical terminal 5. The pressure plates ensure the relative stability of the positions of the transmitting optical terminal 5, the optical fiber rotary connector 4, and the receiving optical terminal 6. A bearing end cap 10 is provided at the connection between the flange 1 and the conductive slip ring 2. The receiving optical terminal 6, the optical fiber rotary connector 4, and the transmitting optical terminal 5 form an electro-optical and optical-electrical conversion system for achieving stable transmission of large data signals. The present invention embeds the transmitting optical terminal 5 within the cavity of the flange 1 and the receiving optical terminal 6 within the cavity of the conductive slip ring 2, enabling the separate transmission of high-power, high-current signals from large data signals, thereby minimizing the interference of high-power, high-current signal transmission on large data signals.

[0028] like Figures 1 to 3As shown, the optical fiber rotary connector 4 is installed into the conductive slip ring 2 and tightened and secured with the optical fiber chuck 3. The flange 1 is connected to one end of the conductive slip ring 2. The transmitting optical terminal 5 is embedded in the flange 1, and its port is connected to one side of the optical fiber rotary connector 4. The transmitting optical terminal 5 is then fixed to the flange 1 using the first pressure plate 7. The receiving optical terminal 6 is connected to the other end of the optical fiber rotary connector 4, and the receiving optical terminal 6 is then embedded in the ring assembly 22 and secured using the second pressure plate 8. The combined bracket 21, the optical fiber chuck 3, the first pressure plate 7, and the flange 1 are all fixedly connected using cross-recessed pan head screws.

[0029] It should be understood that the specific embodiments described above are only used to explain the present invention and are not intended to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. An integrated photoelectric rotary connection device, characterized in that: The invention comprises a flange (1), a conductive slip ring (2) mounted on the flange (1), and an optical fiber rotary connector (4) fixed inside the conductive slip ring (2) via an optical fiber chuck (3); one end of the optical fiber rotary connector (4) is connected to a port of a transmitting optical terminal (5), and the other end thereof is connected to a receiving optical terminal (6); the transmitting optical terminal (5) is embedded in the cavity of the flange (1); and the receiving optical terminal (6) is embedded in the conductive slip ring (2); The conductive slip ring (2) comprises a combination bracket (21) mounted on the flange (1), a ring body assembly (22) rotatably mounted inside the combination bracket (21) via a bearing, a brush assembly (23) mounted outside the ring body assembly (22), and a handle (24) mounted on the ring body assembly (22); The flange (1) is provided with a first pressing plate (7) for fixing the receiving optical terminal (6); A second pressing plate (8) for fixing the transmitting optical terminal (5) is installed on the ring body assembly (22); The integrated optoelectronic rotary connection device is installed as follows: the optical fiber rotary connector (4) is installed in the conductive slip ring (2) and is pressed and fixed by the optical fiber chuck (3); the flange (1) is connected to one end of the conductive slip ring (2); the transmitting optical terminal (5) is embedded in the flange (1), the port of the transmitting optical terminal (5) is connected to one side of the optical fiber rotary connector (4), and the transmitting optical terminal (5) is fixed in the flange (1) by a first pressing plate (7); The receiving optical terminal (6) port is connected to the other end of the optical fiber rotary connector (4), and the receiving optical terminal (6) is then embedded in the ring assembly (22), and the receiving optical terminal (6) is fixed by the second pressing plate (8); wherein the combined bracket (21), the optical fiber chuck (3), and the first pressing plate (7) are fixedly connected to the flange (1) by cross-slot pan head screws.

2. The integrated optoelectronic rotary connection device according to claim 1, characterized in that: An outer cover (25) for protecting the brush assembly (23) is provided on the outer side of the combined bracket (21).

3. The integrated optoelectronic rotary connection device according to any one of claims 1 or 2, characterized in that: A bearing end cover (10) is provided at the connection between the flange (1) and the conductive slip ring (2).

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