A high-voltage resistant optical fiber slip ring

Abstract

The present invention relates to a high-voltage-resistant optical fiber slip ring, comprising a sealed slip ring body, within which are disposed optical signal transmission sections A and B, arranged in correspondence with each other for transmitting optical signals. The inner cavity of the slip ring body is filled with a pressure-compensating liquid having light-guiding properties. The present invention provides a solution that, by filling the inner cavity with the pressure-compensating liquid, achieves pressure compensation under high pressure, preventing damage to the product due to excessive internal and external pressure differentials, expanding the product's range of use, and reducing its size.

Description

Technical Field

[0001] The present invention relates to the field of slip rings, and in particular to a high-voltage resistant optical fiber slip ring. Background Art

[0002] Slip rings are electrical components that connect rotating bodies and transmit energy and signals. Based on the transmission medium, they are categorized as electrical slip rings, fluid slip rings, and smooth slip rings, often collectively referred to as "rotary connections" or "rotary connections." Slip rings are typically installed at the rotating center of a device and consist of two main components: a rotating and a stationary component. The rotating component, connected to the device's rotating structure and rotating with it, is called the "rotor." The stationary component, connected to the device's fixed structure and providing energy, is called the "stator." Slip rings transmit optical signals through rotational coupling between the stator and rotor ends. Currently, most slip rings on the market use air as the coupling medium for optical signals between the stator and rotor ends. The slip rings are hollow inside. In high-pressure environments, the mismatch between internal and external pressures can easily lead to external deformation and internal contamination, potentially causing product failure. Some pressure-resistant slip rings on the market still use air as the internal structure, achieving pressure resistance by increasing the thickness of the outer shell. However, these slip rings are bulky, expensive, complex, and difficult to install. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-pressure resistant optical fiber slip ring, which can achieve pressure compensation under high-pressure conditions to avoid product damage due to excessive internal and external pressure differences.

[0004] The technical solutions adopted by the present invention are specifically as follows.

[0005] A high-voltage resistant optical fiber slip ring is characterized by comprising a slip ring body with a sealed structure, wherein an optical signal transmission part A and an optical signal transmission part B are provided in the slip ring body, wherein the optical signal transmission part A and the optical signal transmission part B are arranged correspondingly for transmitting optical signals, and the inner cavity of the slip ring body is filled with a pressure compensation liquid, wherein the pressure compensation liquid has a light-guiding property.

[0006] The specific solution is: the pressure compensation liquid is silicone oil.

[0007] The slip ring body includes a shell, an end cover and a flange. The end cover is assembled at one end of the shell, and the flange is assembled at the other end of the shell. The A optical signal transmission part includes an A ferrule and an A connector. The B optical signal transmission part includes a B ferrule and a B connector. A driving part is arranged on the outside of the flange. The A connector is assembled on the driving part, and the B connector is assembled on the end cover. The A ferrule and the B ferrule are assembled in the inner cavity enclosed between the shell and the flange. The A connector, the driving part and the flange are sealed and assembled by the A sealing component. The B connector, the end cover and the shell are sealed and assembled by the B sealing component. The flange and the shell are sealed and assembled by the C sealing component.

[0008] One end of the A ferrule is fixedly assembled on the driving part, the middle part of the A ferrule is rotatably assembled with the slip ring body through the bearing assembly, one end of the B ferrule is fixedly assembled with the slip ring body through the mounting assembly, the other end of the A ferrule is assembled and connected to one end of the sleeve, and the other end of the B ferrule is rotatably assembled with the other end of the sleeve.

[0009] The sleeve is a ceramic sleeve.

[0010] A through hole is provided on the middle tube body of the sleeve.

[0011] An oil filling hole is provided on the shell, and a detachably assembled hole blocking member is provided at the oil filling hole.

[0012] It also includes a fixing sleeve for fixing the bearing assembly. The installation assembly includes a fixing piece for fixing one end of the B core. The fixing piece and the fixing sleeve are assembled and connected by a threaded connection.

[0013] The A sealing assembly includes an A sealing gasket and an A universal plug seal. An A1 mounting hole portion is provided on the side of the driving part close to the A connector. The A connector is inserted and assembled in the A1 mounting hole portion and sealed by the A sealing gasket. An A2 mounting hole portion is provided on the side of the flange close to the driving part. The driving part is inserted and assembled in the A2 mounting hole portion and sealed by the sleeve A universal plug seal. The B sealing assembly includes a B1 sealing gasket, a B2 sealing gasket and a B sealing ring. A B assembly pipe portion is provided on the side of the end cover close to the B connector. The B connector is inserted and assembled in the B assembly pipe portion and sealed by the B1 sealing gasket. A B assembly hole and a B annular sealing groove are provided on the end face of the shell. The B assembly hole is located at the center of the end of the shell. The B annular sealing groove and the B assembly hole are concentrically arranged. The B annular sealing groove is located on the outside of the B assembly hole. The B2 sealing gasket is assembled in the B assembly hole, and the B sealing ring is assembled in the B annular sealing groove. The end cover and the shell are sealed and assembled by the B2 sealing gasket and the B sealing ring.

[0014] A C-annular groove is provided on the end face of the flange close to the shell. The C-seal assembly includes a C-seal ring, which is assembled in the C-seal groove. The flange and the shell are sealed by the C-seal ring.

[0015] The solution provided by the present invention, by filling the inner cavity with a pressure-compensating liquid, can achieve pressure compensation under high pressure, preventing damage to the product due to excessive internal and external pressure differentials. This expands the product's range of use and reduces its size. Furthermore, the provision of a ceramic sleeve and ferrule simplifies the product's internal structure, reduces costs, and facilitates installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 for Figure 1 Sectional view.

[0018] Figure 3 This is a schematic diagram of the assembly of ferrule A and ferrule B.

[0019] 11-A connector, 12-driver, 13-flange, 14-housing, 141-oil filling hole, 15-end cover, 16-B connector, 21-A sealing gasket, 22-A universal seal, 23-B1 sealing gasket, 24-B2 sealing gasket, 25-B sealing ring, 26-C sealing ring, 31-A ferrule, 32-B ferrule, 33-ceramic sleeve, 34-through hole, 35-fixing sleeve, 36-fixing part, 37-bearing assembly. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0021] like Figure 1 、 2 As shown in Figure 3, a high-voltage-resistant optical fiber slip ring comprises a sealed slip ring body, within which are disposed an optical signal transmission portion A and an optical signal transmission portion B, arranged in correspondence with each other for transmitting optical signals. The inner cavity of the slip ring body is filled with a pressure-compensating liquid having light-guiding properties. The above-mentioned solution provided by the present invention, by filling the inner cavity with pressure-compensating liquid, can achieve pressure compensation under high pressure conditions, thereby preventing damage to the product due to an excessive internal and external pressure differential, expanding the product's range of use, and reducing its size.

[0022] The specific solution is as follows: the pressure compensation liquid is silicone oil. The slip ring body includes a housing 14, an end cover 15, and a flange 13. The end cover 15 is assembled at one end of the housing 14, and the flange 13 is assembled at the other end of the housing 14. The A optical signal transmission part includes an A ferrule 31 and an A connector 11. The B optical signal transmission part includes a B ferrule 32 and a B connector 16. A driving member 12 is provided on the outside of the flange 13. The A connector 11 is assembled on the driving member 12, and the B connector 16 is assembled on the end cover 15. The A ferrule 31 and the B ferrule 32 are assembled in the inner cavity enclosed between the housing 14 and the flange 13. The A sealing assembly is used to seal the A connector 11, the driving member 12, and the flange 13. The B connector 16, the end cover 15, and the housing 14 are sealed by the B sealing assembly. The flange 13 and the housing 14 are sealed by the C sealing assembly. One end of ferrule A 31 is fixedly mounted on driver 12. The middle portion of ferrule A 31 is rotatably mounted to the slip ring body via bearing assembly 37. One end of ferrule B 32 is fixedly mounted to the slip ring body via a mounting assembly. The other end of ferrule A 31 is assembled and connected to one end of the sleeve, while the other end of ferrule B 32 is rotatably mounted to the other end of the sleeve. The sleeve is a ceramic sleeve 33. A through hole 34 is provided in the middle of the sleeve. Ferrule A 31 can be manufactured by the following method: Take a 1m long section of single-mode optical fiber (G657A2), fuse it to a section of GI optical fiber (G657A2 fiber stripping length 8.7mm, GI fiber length at least 5mm), and fuse it using a fiber fusion splicer. This fused optical fiber is then inserted into the custom LC ferrule a, with the cross section of the optical fiber coating located at the ferrule flare. Ferrule B 32 can be manufactured as follows: Take a 1-meter-long single-mode fiber (G657A2) and fuse it to a section of GI fiber. The G657A2 fiber stripping length is 4.2 mm, and the GI fiber is at least 5 mm long. The fiber is then fused together using a fiber fusion splicer. The fused fiber is then inserted into the custom LC ferrule b, with the fiber coating positioned at the ferrule's flare. The ceramic sleeve 33 and ferrule simplify the product's internal structure, reducing costs and facilitating installation.

[0023] The A sealing assembly includes an A sealing gasket 21 and an A pan seal 22. The side of the driving member 12 close to the A connector 11 is provided with an A1 mounting hole portion. The A connector 11 is inserted and assembled in the A1 mounting hole portion and sealed by the A sealing gasket 21. The side of the flange 13 close to the driving member 12 is provided with an A2 mounting hole portion. The driving member 12 is inserted and assembled in the A2 mounting hole portion and sealed by the sleeve A pan seal 22. The B sealing assembly includes a B1 sealing gasket 23, a B2 sealing gasket 24, and a B sealing ring 25. The end cover 15 is close to the B connector 16. A B assembly tube portion is provided on the side, and a B connector 16 is inserted and assembled in the B assembly tube portion and sealed by a B1 sealing gasket 23. The end face of the housing 14 is provided with a B assembly hole and a B annular sealing groove. The B assembly hole is located at the center of the end of the housing 14. The B annular sealing groove and the B assembly hole are arranged concentrically. The B annular sealing groove is located on the outside of the B assembly hole. The B2 sealing gasket 24 is assembled in the B assembly hole, and the B sealing ring 25 is assembled in the B annular sealing groove. The end cover 15 and the housing 14 are sealed by the B2 sealing gasket 24 and the B sealing ring 25. A C annular groove is provided on the end face of the flange 13 on the side close to the housing 14. The C sealing assembly includes a C sealing ring 26, which is assembled in the C annular sealing groove. The flange 13 and the housing 14 are sealed by the C sealing ring 26. An oil filling hole 141 is provided on the outer shell, and a detachable plugging member is provided at the oil filling hole 141. The mounting assembly also includes a retaining sleeve 35 for securing the bearing assembly 37. The mounting assembly includes a fixing member 36 for securing one end of the B ferrule 32. The fixing member 36 and the fixing sleeve 35 are assembled and connected using a threaded connection. The fixing sleeve 35 is constructed of a reducing tube, with external threads provided on the outer wall of the end of the fixing sleeve 35 near the B connector 16. The fixing member 36 is also constructed of a reducing tube, with the B ferrule 32 secured to the end of the fixing member 36 near the B connector 16. The inner wall of the other end of the fixing member 36 is provided with internal threads, which form a threaded connection between the fixing member 36 and the fixing sleeve 35. Furthermore, a compression spring may be installed within the fixing member 36 outside the end of the fixing sleeve 35. One end of the compression spring abuts against the end of the fixing sleeve 35, while the other end abuts against the inner surface of the fixing member 36. The spacing between the A ferrule 31 and the B ferrule 32 can be adjusted by rotating the fixing member 36, facilitating optimal coupling between the A ferrule 31 and the B ferrule 32. Oil is injected into the inner cavity through the oil filling hole 141 on the housing, and then the oil filling hole 141 is sealed using a seal and a plugging pin. The driver 12 is connected to the drive motor via a transmission assembly. During operation, the driver 12 rotates the A ferrule 31. The A ferrule 31 and the B ferrule 32 are positioned by the ceramic sleeve 33 to achieve optical signal coupling.

[0024] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, mechanisms, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A high-voltage resistant optical fiber slip ring, characterized by: The invention comprises a slip ring body with a sealed structure, wherein an optical signal transmission part A and an optical signal transmission part B are provided in the slip ring body, and the optical signal transmission part A and the optical signal transmission part B are arranged correspondingly for transmitting optical signals, and the inner cavity of the slip ring body is filled with a pressure compensation liquid, and the pressure compensation liquid has a light-guiding property; the pressure compensation liquid is silicone oil; the slip ring body comprises a shell, an end cover and a flange, the end cover is assembled at one end of the shell, and the flange is assembled at the other end of the shell, the optical signal transmission part A comprises an A ferrule and an A connector, the optical signal transmission part B comprises a B ferrule and a B connector, a driving member is arranged on the outer side of the flange, the A connector is assembled on the driving member, and the B connector is assembled on the end cover, the A ferrule and the B ferrule are assembled in the inner cavity enclosed between the shell and the flange, the A connector, the driving member and the flange are sealed and assembled by an A sealing component, the B connector, the end cover and the shell are sealed and assembled by a B sealing component, and the flange and the shell are sealed and assembled by a C sealing component; One end of the A ferrule is fixedly assembled on the driving part, the middle part of the A ferrule is rotatably assembled with the slip ring body through the bearing assembly, one end of the B ferrule is fixedly assembled with the slip ring body through the mounting assembly, the other end of the A ferrule is assembled and connected to one end of the sleeve, and the other end of the B ferrule is rotatably assembled with the other end of the sleeve; the sleeve is a ceramic sleeve; a through hole is provided on the middle tube body of the sleeve.

2. The high-voltage resistant optical fiber slip ring according to claim 1, characterized in that: An oil filling hole is provided on the shell, and a detachably assembled hole blocking member is provided at the oil filling hole.

3. The high-voltage resistant optical fiber slip ring according to claim 1, characterized in that: It also includes a fixing sleeve for fixing the bearing assembly. The installation assembly includes a fixing piece for fixing one end of the B core. The fixing piece and the fixing sleeve are assembled and connected by a threaded connection.

4. The high-voltage resistant optical fiber slip ring according to claim 1, characterized in that: The A sealing assembly includes an A sealing gasket and an A universal plug seal. An A1 mounting hole portion is provided on the side of the driving part close to the A connector. The A connector is inserted and assembled in the A1 mounting hole portion and sealed by the A sealing gasket. An A2 mounting hole portion is provided on the side of the flange close to the driving part. The driving part is inserted and assembled in the A2 mounting hole portion and sealed by the sleeve A universal plug seal. The B sealing assembly includes a B1 sealing gasket, a B2 sealing gasket and a B sealing ring. A B assembly pipe portion is provided on the side of the end cover close to the B connector. The B connector is inserted and assembled in the B assembly pipe portion and sealed by the B1 sealing gasket. A B assembly hole and a B annular sealing groove are provided on the end face of the shell. The B assembly hole is located at the center of the end of the shell. The B annular sealing groove and the B assembly hole are concentrically arranged. The B annular sealing groove is located on the outside of the B assembly hole. The B2 sealing gasket is assembled in the B assembly hole, and the B sealing ring is assembled in the B annular sealing groove. The end cover and the shell are sealed and assembled by the B2 sealing gasket and the B sealing ring.

5. The high-voltage resistant optical fiber slip ring according to claim 1, characterized in that: A C-annular groove is provided on the end face of the flange close to the shell. The C-seal assembly includes a C-seal ring, which is assembled in the C-seal groove. The flange and the shell are sealed by the C-seal ring.

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