CN116449502A - Method for non-contact transparent transmission of optical signals by photoelectric rotary connector - Google Patents

Method for non-contact transparent transmission of optical signals by photoelectric rotary connector Download PDF

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Publication number
CN116449502A
CN116449502A CN202211668017.5A CN202211668017A CN116449502A CN 116449502 A CN116449502 A CN 116449502A CN 202211668017 A CN202211668017 A CN 202211668017A CN 116449502 A CN116449502 A CN 116449502A
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CN
China
Prior art keywords
optical
cable
optical fiber
rotor
outer shell
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Granted
Application number
CN202211668017.5A
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Chinese (zh)
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CN116449502B (en
Inventor
陈国浩
陈思远
陈新展
徐楚楠
熊师
汪凌轩
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Wuhu Jiahong New Material Co ltd
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Wuhu Jiahong New Material Co ltd
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Priority to CN202211668017.5A priority Critical patent/CN116449502B/en
Publication of CN116449502A publication Critical patent/CN116449502A/en
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Publication of CN116449502B publication Critical patent/CN116449502B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3817—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing optical and electrical conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a method for non-contact transparent transmission of optical signals of an optical-electrical rotary connector, which is manufactured by the method.

Description

Method for non-contact transparent transmission of optical signals by photoelectric rotary connector
Technical Field
The invention relates to the field of optical fiber communication, in particular to a method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector.
Background
The optical fiber rotary connector is also called an optical fiber rotary connector, and is used for solving the problem of optical signal transmission between opposite rotary components, namely ensuring that the transmission of the optical signal is not interrupted due to rotation. At present, the optical fiber rotary connector generally adopts a mode that a dove prism is used as a key optical component when optical signal rotary transmission is realized, and speed regulation is carried out through a series of planetary gears with different gear ratios, so that the angular speed ratio of an incident light collimator to the dove prism is 2:1, thereby realizing optical signal coupling of the input end and the output end. The method utilizes the reflector to reflect the light of different channels to the rotating shaft according to a certain rule sequence, solves the problems of interference and mutual resonance of light waves, has no noise and distortion, and can work normally under the condition of high magneto-electric interference.
In the structure, the dove prism is used as a main optical component, and because the optical component is inevitably influenced by uncontrollable and uncontrollable factors such as positive and negative tolerance of a cone angle of the prism, roughness of a mirror surface finish and the like in manufacturing, the error of the optical fiber rotary connector is completely compensated by means of personnel operation experience in manufacturing, the consistency of product batches is poor, and the optical signal loss can generally reach 1-5dB.
In the above structure, the planetary gear combination is key to realizing optical signal coupling, and the combination must accurately control the angular velocity ratio of the two to be 2 when the signal coupling loss is low: 1. the processing precision of gears, the cooperation between gears, the natural wear of long-term use, the collision and the striking etc. in engineering use all can cause the increase of coupling loss, probably even cause signal interruption.
In conclusion, the conventional scheme for realizing signal rotation transmission through the through-channel-Wei prism has the defects of high debugging difficulty, short service life and lower reliability.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a non-contact transparent optical signal transmission method of a photoelectric rotary connector, which is characterized in that a photoelectric signal conversion center, a Bluetooth module and an electric brush are additionally arranged in a connector structure to realize the conversion and transmission of photoelectric signals, and the inside and the outside of an outer shell are made of high-strength metal materials, so that the stability of the internal structure of a product can be ensured, and meanwhile, a certain electromagnetic shielding effect can be realized to prevent mutual interference between signals; the shell body can realize transparent transmission of signals, and the transparent transmission refers to complete consistency of signal input and signal output and does not refer to transparency on a product structure. The transparent transmission has the advantages that: the link compatibility is stronger, and the combined signal can be transmitted; small output loss, higher transmission quality, etc.
The invention is realized by the following measures:
the optical fiber rotary connector manufactured by the method comprises an outer shell, a rotor, a rotary shaft, a flange, a stator, a shell positioning bolt, an optical fiber through groove, a cable through groove, an optical fiber fixing bolt, a cable fixing bolt, an optical signal conversion center and an electric brush.
The utility model discloses a novel optical fiber rotary connector, including outer casing, rotor, cable lead to the groove, the main part of outer casing as optic fibre rotary connector, there is the screw thread that is equipped with the direction inwards at its both ends respectively, the flange passes through self direction outwards to be installed the one end of outer casing, the rotor coaxial arrangement is in one side of flange, the rotation axis with the rotor is connected, through the rotation of rotor drives its rotation, the stator is in the other end of outer casing, installs through self direction outwards screw thread and fixes on the outer casing, casing positioning bolt distributes on the outer casing, can fix a position the position of adjusting the outer casing axis, makes the axis of rotation axis with the outer casing axis collineation, optic fibre lead to the groove to distribute the rotor with on the stator, for optic fibre passes, optic fibre fixing bolt distributes in the both sides of optic fibre lead to the groove, for the photoelectric composite cable passes, cable fixing bolt distributes in the both sides of cable lead to the groove, plays the effect of fixing cable, photoelectric signal conversion, contain bluetooth OE conversion module and the photoelectric conversion module is arranged in the rotation axis is close to the rotation axis, and is fixed in the rotation axis is arranged in the rotation axis.
Furthermore, the outer shell has a certain thickness, and the inner part and the outer part of the outer shell are made of high-strength metal materials, so that the stability of the internal structure of the product can be ensured, and meanwhile, a certain electromagnetic shielding effect can be realized, and mutual interference among signals is prevented; the shell body can realize transparent transmission of signals, and the transparent transmission refers to complete consistency of signal input and signal output and does not refer to transparency of a product structure. The transparent transmission has the advantages that: the link compatibility is stronger, and the combined signal can be transmitted; small output loss, higher transmission quality, etc.
Furthermore, the radial dimension of the flange is larger than that of the outer shell, a certain thickness is formed in the axial direction, mounting holes are distributed at the edge positions of the flange, the functions of counterweight and supporting the whole structure are achieved, and a self-lubricating sealing ring is mounted on the edge contacted with the rotating shaft, so that the sealing performance of the rotating shaft during rotation is ensured.
Further, the rotor is fixed coaxially with the rotation shaft, rotates with the rotation of the rotation shaft, has a radial dimension larger than that of the rotation shaft, and has a certain thickness in the axial direction.
Furthermore, the rotating shaft shell has a certain thickness, the inside is of a hollow structure, a channel is arranged at the connecting part of the rotating shaft shell and the rotor, the channel can be a ceramic sleeve for an optical fiber and a photoelectric composite cable to pass through, and the central axis of the sleeve is in line with the central axis of the rotating shaft.
Further, the stator is fixedly mounted at the other end of the outer shell, the size of the stator is the same as that of the rotor, and when the stator is screwed and fixedly mounted, the position of a line through groove reserved on the surface of the stator is consistent with that of the rotor.
Further, the optical fiber through grooves are distributed on the stator and the rotor, the optical fibers are fixed through the optical fiber through grooves on the rotor and enter the rotating shaft, the optical fibers are fixed through the optical fiber through grooves on the stator and enter the inner part of the outer shell, the optical fiber through grooves are used as optical fiber interfaces, and the number and the types of the optical fiber through grooves can be set according to actual needs.
Further, the cable through grooves are distributed on the stator and the rotor, the photoelectric signal composite cables are fixed through the cable through grooves on the rotor and enter the rotating shaft, the photoelectric signal composite cables are fixed through the cable through grooves on the stator and enter the inside of the outer shell, and the cable through grooves are used as photoelectric signal composite cable interfaces, and the number and the types of the photoelectric signal composite cables can be set according to actual needs.
Further, the photoelectric signal conversion center comprises a Bluetooth receiving and transmitting module and an EO/OE conversion module, a built-in power supply is arranged in the photoelectric signal conversion center, the long-term stable working requirement of the element can be met, when an optical signal is transmitted in from the rotor end through an optical fiber of the optical fiber through groove, the photoelectric signal conversion center is converted into an electric frequency signal by the OE module and is transmitted to the Bluetooth transmitting module, the electric frequency signal is transmitted to the Bluetooth receiving module after being received by the Bluetooth transmitting module, then the electric frequency signal is generated by the Bluetooth receiving module to drive the EO conversion module to work, the received radio wave is converted into an optical signal again, the optical signal is transmitted to an optical fiber circuit through an optical fiber of the stator end, and the non-contact transmission of the signal is completed.
Furthermore, the electric brush works under the condition that an photoelectric composite signal cable is required to be used, when photoelectric signals are transmitted from the rotor end through the cable of the cable through groove, the OE module of the photoelectric signal conversion center converts the photoelectric signals into electric signals and transmits the electric signals to the Bluetooth transmitting module, the Bluetooth transmitting module receives the signals and transmits the electric signals to the Bluetooth receiving module, then the Bluetooth receiving module generates electric signals to drive the EO converting module to work, the received radio waves are converted into optical signals again and are transmitted to an optical fiber circuit through an optical fiber of the stator end, the contactless transmission of the signals is completed, meanwhile, the electric current is transmitted to the electric brush rotating along with the rotating shaft, and the electric brush is transmitted to the photoelectric composite signal cable through friction contact with the cable of the outer shell body, so that the connection of a circuit is completed, and the electric core circuit in the rotating process is ensured.
Further, the photoelectric signal can also be transmitted from the stator end through the cable of the cable through groove, and transmitted from the rotor end through the cable of the cable through groove.
Further, a plurality of blades are uniformly arranged on the rotating shaft, a fan is arranged on the inner wall of a cavity between the stator and the photoelectric signal conversion center, a temperature sensor and an audible and visual alarm are arranged on the inner wall of the outer shell, the blades are used for radiating the electric brush, the rotor, the inner wall of the outer shell and the photoelectric signal conversion center, the fan is used for radiating the stator, the inner wall of the outer shell and the photoelectric signal conversion center, the temperature sensor is used for detecting the temperature of the inner wall of the outer shell, and the audible and visual alarm gives an alarm when the temperature is too high; because the electric brush rotates along with the rotating shaft and generates heat through friction with the inner wall of the outer shell, the temperature of the inner wall of the outer shell and the temperature of the inner part of the outer shell are too high, and the service life of the electric brush and the photoelectric signal conversion center can be influenced for a long time; the plurality of blades are uniformly arranged on the rotating shaft, the blades and the electric brushes rotate coaxially and are used for radiating the electric brushes, the rotor, the inner wall of the outer shell and the photoelectric signal conversion center, and meanwhile, the fan can also be used for radiating the stator, the inner wall of the outer shell and the photoelectric signal conversion center so as to prevent the temperature of each part from being too high; the blades and the fans can also sweep dust on the optical fibers and the cables, so that excessive dust accumulation is prevented; the instant temperature of the inner wall of the outer shell can be obtained through the temperature sensor, and when the temperature is too high and reaches a set value, the audible and visual alarm gives an alarm to remind a worker to properly reduce the rotating speed of the rotating shaft.
Further, evenly be provided with a plurality of brushes on the rotation axis, be provided with soft brush hair on the brush the rotor with be provided with dust removal fan on the cavity outer wall between the brush, dust removal fan passes through the pipe connection the cavity, because optic fibre and cable can accumulate certain dust at the surface in long-term use, the brush is used for sweeping the dust on optic fibre and the cable of rotor one end, dust removal fan is used for collecting the dust that sweeps off to keep the cleanness on optic fibre and cable surface.
Furthermore, the optical fiber through grooves and the cable through grooves are uniformly distributed in the circumferential direction of the stator and the rotor, so that interference between each optical fiber and each cable is reduced, and the stability of photoelectric signal transmission is improved; the number of the optical fiber through grooves is more than 2 times of that of the cable through grooves, and the optical fiber through grooves can be flexibly applied to a scene that the input end and the output end are both optical signals, or one end is an optical signal and the other end is an electric signal; the distance between the optical fiber through groove and the axis of the rotating shaft is larger than the distance between the cable through groove and the axis of the rotating shaft, the weight of the optical fiber is lighter than that of the cable and is less influenced by centrifugal force, so that the optical fiber through groove is arranged at a position farther from the axis of the rotating shaft, and the cable through groove is arranged at a position nearer to the axis of the rotating shaft, interference between the optical fiber and the cable can be reduced, and meanwhile, the influence of the centrifugal force on signal transmission can be reduced to the greatest extent.
Further, be provided with miniature air pump on the outer wall of shell body, miniature air pump with temperature sensor electric connection, miniature air pump passes through the trachea and connects the inside airtight cavity of brush and be used for to the cavity is taken out air or is inflated be provided with liquid refrigerant in the airtight cavity, works as the temperature of brush is too high and reaches temperature sensor's setting value, miniature air pump is automatic to be opened and to the inside airtight cavity of brush is taken out air, the inside cavity internal pressure of brush reduces, liquid refrigerant takes place the vaporization because the atmospheric pressure reduces, because vaporization process absorbs heat to cool down the brush, prevent that the brush temperature is too high, prolong its life.
Or the rotating shaft is of a hollow structure, a plurality of air holes are formed in the part, located in the sealed cavity inside the electric brush, of the rotating shaft, the inner cavity of the rotating shaft is connected with an external air pump, the air pump can be used for pumping air from the inner cavity of the rotating shaft, so that the sealed cavity inside the electric brush is pumped through the air holes, the air pressure in the cavity inside the electric brush is reduced, liquid refrigerant in the cavity is vaporized and absorbs heat due to the reduction of the air pressure, the electric brush is cooled,
advantageous effects
The method for transmitting the optical signals in a non-contact transparent way of the photoelectric rotary connector provided by the invention does not use an optical element and a planetary gear, so that the difficulty of assembly and debugging is reduced; the machining part has no excessively high precision requirement, so that the process difficulty is reduced, and the cost is reduced; the service life is prolonged, and the influence on the rotary connector caused by natural abrasion or accidental impact is avoided; the signal conversion loss is less than or equal to 0.5dB, the transmission is stable, the electromagnetic shielding of the transmission signal can be realized, and the electromagnetic shielding is not interfered with other communication equipment; the module integration level is high, the size of the rotary connector can be greatly reduced, and the use is convenient.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate the embodiments of the present invention, and should not be considered as limiting the scope, and other related drawings can be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a fiber optic rotary connector
FIG. 2 is a cross-sectional view of a fiber optic rotary connector
FIG. 3 is a vertical cross-section of a fiber optic rotary connector
Fig. 4 top view of a fiber optic rotary connector
Fig. 5 is a left side view of a fiber optic rotary connector
FIG. 6 right side view of a fiber optic rotary connector
FIG. 7 is a schematic diagram of a photoelectric signal conversion hub brush
In the figure: the photoelectric signal conversion device comprises a shell body 1, a rotor 2, a rotating shaft 3, a flange 4, a stator 5, a shell body positioning bolt 6, an optical fiber through groove 7, a cable through groove 8, an optical fiber fixing bolt 9, a cable fixing bolt 10, an photoelectric signal conversion center 11 and an electric brush 12.
Detailed Description
Example 1:
as shown in fig. 1, 2, 3, and 4, an electro-optical rotary connector includes: the photoelectric signal conversion device comprises a shell body 1, a rotor 2, a rotating shaft 3, a flange 4, a stator 5, a shell body positioning bolt 6, an optical fiber through groove 7, a cable through groove 8, an optical fiber fixing bolt 9, a cable fixing bolt 10, an photoelectric signal conversion center 11 and an electric brush 12.
The outer shell 1 is used as a main body part of the optical fiber rotary connector, threads with inward directions are respectively arranged at two ends of the outer shell 1, the flange 4 is arranged at one end of the outer shell 1 through the threads with the outward directions, the rotor 2 is coaxially arranged at one side of the flange 4, the rotary shaft 3 is connected with the rotor 2, the stator 5 is arranged at the other end of the outer shell 1 through the rotation of the rotor 2, the outer shell 1 is fixedly arranged through the threads with the outward directions, the shell positioning bolts 6 are distributed on the outer shell 1, the positions of the central axes of the outer shell 1 can be positioned and adjusted, the central axes of the rotary shaft 3 and the central axes of the outer shell 1 are collinear, the optical fiber through grooves 7 are distributed on the rotor 2 and the stator 5 for optical fibers to pass through, the optical fiber fixing bolts 9 are distributed on two sides of the optical fiber through grooves 7 for fixing the optical fibers, the cable through grooves 8 are distributed on the rotor 2 and the stator 5 for the optical fiber through, the cable fixing bolts 10 are distributed on two sides of the cable through grooves 8 for fixing the cable, the optical fiber through center 11 is used for fixing the cable, the photoelectric signal conversion center 11 comprises a Bluetooth receiving module and an EO/OE conversion module, the optical fiber through the fixing bolt is fixedly arranged on the outer shell 12, and is fixedly arranged on one end of the rotary shaft 3 along with the rotary shaft 3.
The radial dimension of the flange 4 is larger than that of the outer shell 1, the flange has a certain thickness in the axial direction, mounting holes are distributed at the edge positions of the flange to play a role in balancing weight and supporting the integral structure, and a self-lubricating sealing ring is arranged on the edge contacted with the rotating shaft 3 to ensure the sealing performance of the rotating shaft 3 during rotation.
The rotor 2 is fixed coaxially with the rotary shaft 3, rotates with the rotation of the rotary shaft 3, has a radial dimension larger than that of the rotary shaft 3, and has a certain thickness in the axial direction.
The outer shell of the rotating shaft 3 has a certain thickness, the inside is of a hollow structure, a channel is arranged at the connecting part of the rotating shaft and the rotor 2, the channel can be a ceramic sleeve for the optical fiber and the photoelectric composite cable to pass through, and the central axis of the sleeve is collinear with the central axis of the rotating shaft 3.
The stator 5 is fixedly arranged at the other end of the outer shell 1, the size of the stator is the same as that of the rotor 2, and the position of a line through groove reserved on the surface of the stator is consistent with that of the rotor 2 after the stator is fixedly arranged by screwing.
The optical fiber through slots 7 are distributed on the stator 5 and the rotor 2, and the optical fibers are fixed through the optical fiber through slots on the rotor 2 and enter the rotating shaft 3, and the optical fibers are fixed through the optical fiber through slots on the stator 5 and enter the inside of the outer shell 1.
The cable through grooves 8 are distributed on the stator 5 and the rotor 2, the photoelectric composite cable is fixed through the cable through groove holes on the rotor 2 and enters the rotating shaft 3, and the photoelectric composite cable is fixed through the cable through groove holes on the stator 5 and enters the inside of the outer shell 1.
The photoelectric signal conversion center 11 comprises a Bluetooth receiving and transmitting module and an EO/OE conversion module, when an optical signal is transmitted in from the rotor 2 end through the optical fiber of the optical fiber through groove 7, the EO module of the photoelectric signal conversion center 11 converts the optical signal into an electric frequency signal and transmits the electric frequency signal to the Bluetooth receiving module, the Bluetooth receiving module receives the electric frequency signal and transmits the electric frequency signal to the Bluetooth transmitting module, and then the Bluetooth transmitting module transmits the electric frequency signal in a radio wave mode.
Example 2:
the present embodiment mainly describes a scenario in which the photoelectric rotary connector is applied to a photoelectric signal composite cable as in fig. 4 (5) (6) (7), in which the brush 12 is disposed at an end of the photoelectric signal conversion hub 11 near the rotor 2, fixedly mounted on the rotary shaft 3, and rotated with the rotary shaft 3.
When photoelectric signals are transmitted from the rotor 2 end through the cable of the cable through groove 8, the OE module of the photoelectric signal conversion center 11 converts the signals into electric frequency signals and transmits the electric frequency signals to the Bluetooth transmitting module, the Bluetooth transmitting module receives the signals and transmits the electric frequency signals to the Bluetooth receiving module, then the Bluetooth receiving module generates the electric frequency signals to drive the EO converting module to work, the received radio waves are converted into optical signals again and are transmitted to an optical fiber circuit through the optical fiber of the stator 5 end, the non-contact transmission of the signals is completed, meanwhile, the electric current is transmitted to the electric brush 12 rotating along with the rotating shaft 3, and the electric brush 12 is in friction contact with the inner wall of the outer shell body to transmit the electric current to the photoelectric composite signal cable through the cable of the stator 5 end, so that the connection of the circuit is completed, and the integrity of the electric core circuit in the rotating process is ensured.
It should be noted that the photoelectric signal may also be transmitted from the cable that is led through the cable slot 8 at the end of the stator 5, and then transmitted through the cable that is led through the cable slot 8 at the end of the rotor 2.
Example 3:
on the basis of embodiment 2, a plurality of blades are uniformly arranged on the rotating shaft 3, a fan is arranged on the inner wall of a cavity between the stator 5 and the photoelectric signal conversion center 11, a temperature sensor and an audible and visual alarm are arranged on the inner wall of the outer shell 1, the blades are used for radiating the electric brush 12, the rotor 2, the inner wall of the outer shell 1 and the photoelectric signal conversion center 11, the fan is used for radiating the stator 5, the inner wall of the outer shell 1 and the photoelectric signal conversion center 11, the temperature sensor is used for detecting the temperature of the inner wall of the outer shell 1, and the audible and visual alarm gives an alarm when the temperature is too high; the brush 12 rotates along with the rotating shaft 3 and generates heat through friction with the inner wall of the outer shell 1, so that the temperature of the inner wall of the outer shell 1 and the inner part of the outer shell 1 is too high, and the service lives of the brush 12 and the photoelectric signal conversion center 11 are influenced for a long time; the plurality of blades are uniformly arranged on the rotating shaft 3, the blades and the electric brush 12 rotate coaxially and are used for radiating the electric brush 12, the rotor 2, the inner wall of the outer shell 1 and the photoelectric signal conversion center 11, and meanwhile, the fan can also be used for radiating the stator 5, the inner wall of the outer shell 1 and the photoelectric signal conversion center 11 so as to prevent the temperature of each part from being overhigh; the blades and the fans can also sweep dust on the optical fibers and the cables, so that excessive dust accumulation is prevented; the instant temperature of the inner wall of the outer shell 1 can be obtained through the temperature sensor, and when the temperature is too high and reaches a set value, the audible and visual alarm gives an alarm to remind a worker to properly reduce the rotating speed of the rotating shaft 3.
Example 4:
on the basis of embodiment 3 a plurality of brushes are evenly arranged on the rotating shaft 3, soft bristles are arranged on the brushes, a dust removing fan is arranged on the outer wall of a cavity between the rotor 2 and the brushes 12, the dust removing fan is connected with the cavity through a pipeline, and as certain dust can be accumulated on the surface of the optical fiber and the cable in the long-term use process, the brushes are used for sweeping dust on the optical fiber and the cable at one end of the rotor 2, and the dust removing fan is used for collecting the swept dust, so that the surface of the optical fiber and the surface of the cable are kept clean.
Example 5:
on the basis of embodiment 1, the optical fiber through grooves 7 and the cable through grooves 8 are uniformly distributed in the circumferential direction of the stator 5 and the rotor 2, so that interference between each optical fiber and each cable is reduced, and stability of photoelectric signal transmission is improved; the number of the optical fiber through grooves 7 is more than 2 times of that of the cable through grooves 8, and the optical fiber through grooves can be flexibly applied to a scene that the input end and the output end are both optical signals, or one end is an optical signal and the other end is an electric signal; the distance between the optical fiber through groove 7 and the axis of the rotating shaft 3 is larger than the distance between the cable through groove 8 and the axis of the rotating shaft 3, and the weight of the optical fiber is lighter than that of the cable and is less influenced by centrifugal force, so that the optical fiber through groove 7 is arranged at a position farther from the axis of the rotating shaft 3, and the cable through groove 8 is arranged at a position nearer to the axis of the rotating shaft 3, interference between the optical fiber and the cable can be reduced, and meanwhile, the influence of the centrifugal force on signal transmission can be reduced to the greatest extent.
Example 6:
on the basis of embodiment 4, be provided with miniature air pump on the outer wall of shell 1, miniature air pump with temperature sensor electric connection, miniature air pump passes through the trachea and connects the inside airtight cavity of brush 12 and be used for to the cavity is taken out air or is inflated be provided with liquid refrigerant in airtight cavity, when the temperature of brush 12 is too high and reaches temperature sensor's setting value, miniature air pump is automatic to be opened and to the airtight cavity of brush 12 is taken out air, the inside cavity internal air pressure of brush 12 reduces, liquid refrigerant takes place the vaporization because the atmospheric pressure reduces, absorbs heat because the vaporization process to carry out the cooling to brush 12, prevent that brush 12 is too high in temperature, prolong its life.
Example 7:
unlike embodiment 6, the rotating shaft 3 has a hollow structure, the part of the rotating shaft 3 located in the sealed cavity inside the electric brush 12 is provided with a plurality of air holes, the inner cavity of the rotating shaft 3 is connected with an external air pump, the air pump can be used for pumping air from the inner cavity of the rotating shaft 3, so that the sealed cavity inside the electric brush 12 is pumped through the air holes, the air pressure inside the cavity inside the electric brush 12 is reduced, the liquid refrigerant in the cavity is vaporized and absorbs heat due to the reduction of the air pressure, thereby cooling the electric brush 12,
the above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present invention, and the changes and substitutions are intended to be covered in the protection scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (11)

1. The optical fiber rotary connector manufactured by the method comprises an outer shell, a rotor, a rotary shaft, a flange, a stator, a shell positioning bolt, an optical fiber through groove, a cable through groove, an optical fiber fixing bolt, a cable fixing bolt, an optical signal conversion center and an electric brush; after the optical signal is input, the optical signal is firstly converted into an electrical frequency signal through an OE module in the photoelectric signal conversion center, so that a Bluetooth transmitting module sends out radio waves, a Bluetooth signal receiving module is matched with the EO conversion module, and then the signal is converted into an optical signal and then is output; for cables requiring photoelectric composite signal transmission, the electric brushes can be added, and the integrity of circuit connection in the rotating process is ensured through the contact of the electric brushes and the inner wall of the conductor.
2. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 1, wherein: the optical fiber rotary connector comprises an outer shell, wherein the outer shell is used as a main body part of the optical fiber rotary connector and has a certain thickness, the inner part and the outer part of the outer shell are made of high-strength metal materials, the outer shell can realize transparent transmission of signals, and threads which are inwards arranged in the direction are respectively arranged at two ends of the outer shell.
3. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 1, wherein: the radial dimension of the flange is larger than that of the outer shell, a certain thickness is formed in the axial direction, mounting holes are distributed at the edge positions of the flange, the flange plays a role in balancing weight and supporting the integral structure, and a self-lubricating sealing ring is mounted on the edge contacted with the rotating shaft, so that the sealing performance of the rotating shaft during rotation is ensured.
4. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 1, wherein: the optical fiber through grooves are distributed on the stator and the rotor, optical fibers are fixed through optical fiber through groove holes on the rotor and enter the rotating shaft, the optical fibers are fixed through the optical fiber through groove holes on the stator and extend into the outer shell to be connected with the photoelectric signal conversion center, the optical fiber through grooves are used as optical fiber interfaces, and the number and the type of the optical fiber through grooves can be set according to actual needs.
5. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 1, wherein: the cable through grooves are distributed on the stator and the rotor, the photoelectric signal composite cables are fixed through cable through holes on the rotor and enter the rotating shaft, the photoelectric signal composite cables are fixed through cable through holes on the stator and extend into the outer shell to be connected with the photoelectric signal conversion center, the cable through grooves are used as photoelectric signal composite cable interfaces, and the number and the types of the cable through grooves can be set according to actual needs.
6. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 1, wherein: the photoelectric signal conversion center comprises a Bluetooth receiving and transmitting module and an EO/OE conversion module, when an optical signal is transmitted in from the rotor end through the optical fiber of the optical fiber through groove, the OE module of the photoelectric signal conversion center converts the optical signal into an electric frequency signal and transmits the electric frequency signal to the Bluetooth transmitting module, the Bluetooth transmitting module receives the electric frequency signal and transmits the electric frequency signal to the Bluetooth receiving module, and then the Bluetooth receiving module generates the electric frequency signal to drive the EO conversion module to work, the received radio wave is converted into an optical signal again and is transmitted to an optical fiber circuit through the optical fiber of the stator end, and the non-contact transmission of the signal is completed.
7. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 1, wherein: the electric brush is arranged at one end, close to the rotor, of the photoelectric signal conversion center, is fixedly arranged on the rotating shaft and rotates along with the rotating shaft, when photoelectric signals are transmitted in through the cable of the cable through groove from the rotor end, the OE module of the photoelectric signal conversion center converts the photoelectric signals into electric signals and transmits the electric signals to the Bluetooth transmitting module, the Bluetooth transmitting module receives the electric signals and transmits the electric signals to the Bluetooth receiving module, then the Bluetooth receiving module generates electric signals to drive the EO converting module to work, the received radio waves are converted into optical signals and are transmitted to an optical fiber circuit through an optical fiber of the stator end, the electric brush is transmitted to the electric brush rotating along with the rotating shaft, and meanwhile, the electric brush is in friction contact with the inner wall of the outer shell, and transmits the electric current to the photoelectric signal cable through the cable of the stator end, so that the connection of the circuit is completed, and the circuit core wire in the rotating process is ensured to be complete.
8. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claims 6 and 7, wherein: photoelectric signals can be transmitted from the rotor end through the cable of the cable through groove, and then transmitted out through the cable of the cable through groove of the stator end, and also can be transmitted from the stator end through the cable of the cable through groove, and then transmitted out through the cable of the cable through groove of the rotor end.
9. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 7, wherein: the electric motor is characterized in that a plurality of blades are uniformly arranged on the rotating shaft, a fan is arranged on the inner wall of a cavity between the stator and the photoelectric signal conversion center, a temperature sensor and an audible-visual alarm are arranged on the inner wall of the outer shell, the blades are used for radiating the electric brush, the rotor, the inner wall of the outer shell and the photoelectric signal conversion center, the fan is used for radiating the stator, the inner wall of the outer shell and the photoelectric signal conversion center, the temperature sensor is used for detecting the temperature of the inner wall of the outer shell, and the audible-visual alarm gives an alarm when the temperature is too high.
10. The method for non-contact transparent transmission of optical signals by an optical-electrical rotary connector according to claim 9, wherein: a plurality of brushes are uniformly arranged on the rotating shaft, soft bristles are arranged on the brushes, a dust removing fan is arranged on the outer wall of a cavity between the rotor and the brushes, the dust removing fan is connected with the cavity through a pipeline, the brushes are used for sweeping dust on optical fibers and cables at one end of the rotor, and the dust removing fan is used for collecting the swept dust.
11. A method for non-contact transparent transmission of optical signals for an opto-electronic rotary connector according to claim 4 or 5, wherein: the optical fiber through grooves and the cable through grooves are uniformly distributed in the circumferential direction of the stator and the rotor, the number of the optical fiber through grooves is more than 2 times that of the cable through grooves, and the distance between the optical fiber through grooves and the axis of the rotating shaft is greater than that between the cable through grooves and the axis of the rotating shaft.
CN202211668017.5A 2022-12-23 2022-12-23 Method for non-contact transparent transmission of optical signals by photoelectric rotary connector Active CN116449502B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993026020A1 (en) * 1992-06-18 1993-12-23 Kabushiki Kaisha Yaskawa Denki Non-contact power transmission apparatus, non-contact signal transmitter, separation type machine using them and control method thereof
US5553176A (en) * 1995-07-14 1996-09-03 The United States Of America As Represented By The Secretary Of The Navy Single in-line fiber-optic rotary joint
CN101644800A (en) * 2009-08-31 2010-02-10 中航光电科技股份有限公司 Photoelectric composite-rotation connector
CN202710789U (en) * 2012-05-31 2013-01-30 中航光电科技股份有限公司 Photoelectric composite rotary connector
CN104330857A (en) * 2014-03-20 2015-02-04 中航光电科技股份有限公司 Photovoltaic conversion connector
CN104503030A (en) * 2014-12-12 2015-04-08 上海大学 Collimator flange for broadband multichannel optical fiber rotary connector
WO2020247884A1 (en) * 2019-06-07 2020-12-10 Commscope Technologies Llc Fiber optic connector, optical transceivers, and transceiver modules and devices
CN115173170A (en) * 2022-06-27 2022-10-11 华能吉林发电有限公司镇赉风电厂 Slip ring for realizing communication signal transmission through photoelectric signal conversion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993026020A1 (en) * 1992-06-18 1993-12-23 Kabushiki Kaisha Yaskawa Denki Non-contact power transmission apparatus, non-contact signal transmitter, separation type machine using them and control method thereof
US5553176A (en) * 1995-07-14 1996-09-03 The United States Of America As Represented By The Secretary Of The Navy Single in-line fiber-optic rotary joint
CN101644800A (en) * 2009-08-31 2010-02-10 中航光电科技股份有限公司 Photoelectric composite-rotation connector
CN202710789U (en) * 2012-05-31 2013-01-30 中航光电科技股份有限公司 Photoelectric composite rotary connector
CN104330857A (en) * 2014-03-20 2015-02-04 中航光电科技股份有限公司 Photovoltaic conversion connector
CN104503030A (en) * 2014-12-12 2015-04-08 上海大学 Collimator flange for broadband multichannel optical fiber rotary connector
WO2020247884A1 (en) * 2019-06-07 2020-12-10 Commscope Technologies Llc Fiber optic connector, optical transceivers, and transceiver modules and devices
CN115173170A (en) * 2022-06-27 2022-10-11 华能吉林发电有限公司镇赉风电厂 Slip ring for realizing communication signal transmission through photoelectric signal conversion

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