An optoelectronic hybrid combined high-frequency signal transmission slip ring used in radar

Abstract

The present invention relates to an optoelectronic hybrid combined high-frequency signal transmission slip ring for radar. The slip ring comprises an electric slip ring assembly, a fiber optic slip ring assembly, and a high-frequency slip ring assembly. The electric slip ring assembly includes a ring body assembly, a combination bracket, a brush assembly, a dust cover, and a pinning recess. The fiber optic slip ring assembly includes a fiber optic slip ring fixing plate, a fiber optic slip ring rotor fixing plate, and a fiber optic slip ring. The high-frequency slip ring assembly comprises a high-frequency slip ring, a high-frequency slip ring fixing plate, and a high-frequency slip ring rotor fixing lever. The rotating portion of the high-frequency slip ring and the ring body assembly of the electric slip ring are connected by a clearance fit between the pins and the pinning recess, thereby achieving combined transmission of the two slip rings. The fiber optic slip ring and the high-frequency slip ring are driven by a slotted fit between the fiber optic slip ring rotor fixing plate and the high-frequency slip ring rotor fixing lever. The present invention not only enables high-speed signal transmission but also simultaneously transmits high-frequency signals. This improves signal transmission diversity, spatial redundancy, stability, and maintainability.

Description

Technical Field

[0001] The present invention relates to a conductive slip ring, in particular to an optoelectronic hybrid combined high-frequency signal transmission slip ring used in radar. Background Art

[0002] Conductive slip rings are a special type of rotary connector used to transmit signals and electrical power between two rotating mechanisms. They achieve sliding electrical contact during rotation through friction between the stator and rotor. Conventional conductive slip rings typically do not transmit power, low-frequency signals, optical signals, or high-frequency signals simultaneously. Due to structural limitations, these slip rings operate at low frequencies, typically transmitting signals around 100 MHz. They are unable to meet the operating frequency transmission requirements for high-frequency signals. Signal transmission requirements for applications such as pods, turntables, and radars are constantly evolving, particularly with regard to the performance and stability of optoelectronic signals. However, due to structural size limitations, conventional slip rings struggle to simultaneously transmit optical and high-frequency signals. Consequently, there is an urgent need to develop a conductive slip ring capable of transmitting electrical, optical, and high-frequency signals simultaneously. Summary of the Invention

[0003] The purpose of the present invention is to provide an optoelectronic hybrid combined high-frequency signal transmission slip ring used in radar, which can not only realize the transmission of high-speed signals, but also transmit high-frequency signals at the same time.

[0004] The object of the present invention is achieved as follows: an optoelectronic hybrid combined high-frequency signal transmission slip ring for radar, comprising an electric slip ring assembly, a high-frequency slip ring assembly, and an optical fiber slip ring assembly; wherein:

[0005] The electric slip ring assembly includes a ring body assembly, a combined bracket, a brush assembly, an outer cover, a bearing, a bearing end cover, and a pin-pulling recess; the brush assembly, the combined bracket, and the ring body assembly are arranged at the middle right end of the tubular outer cover, the combined bracket is sleeved on the middle part of the outer wall of the ring body assembly with the transmission shaft in the middle, and the left and right ends of the combined bracket are provided with outwardly protruding wing handles, the combined bracket is sleeved on the outer wall of the ring body assembly, and the combined bracket and the left and right ends of the ring body assembly are movably connected by bearings respectively, the brush assembly is sleeved on the combined bracket and On the left and right sides of the outer wall of the ring body assembly between the ring body assemblies, screws are screwed from the outside to the inside through the outer cover into the wing handles at the left and right ends of the combined bracket to fix the outer cover to the combined bracket. The ring body assembly, which serves as the rotor of the electric slip ring assembly, can rotate within the combined bracket, which serves as the stator of the electric slip ring assembly. The bearing end cover is sleeved from left to right on the outer wall of the left end of the ring body assembly and presses the bearing at the left end. The screws fix the bearing end cover to the edge of the left end face of the ring body assembly. A pin removal recess is provided in the middle of the left end face of the ring body assembly that is concave to the right.

[0006] The high-frequency slip ring group includes a high-frequency slip ring, a high-frequency slip ring fixed disk, and a high-frequency slip ring rotor fixing lever. The high-frequency slip ring group is arranged at the left end inside the outer cover. The annular high-frequency slip ring fixed disk is fixed on the left end face of the combined support by screws. Four fixing disk waist-shaped grooves on the high-frequency slip ring fixed disk are aligned with the support waist-shaped grooves on the combined support and locked and fixed with screws, so that the leads welded on the brush assembly are led out from the four fixing disk waist-shaped grooves on the high-frequency slip ring fixed disk; as the rotor of the high-frequency slip ring group, the annular high-frequency slip ring is sleeved in the middle of the high-frequency slip ring fixed disk which is the stator of the high-frequency slip ring group. The high-frequency slip ring rotor fixing lever passes through the middle of the high-frequency slip ring from right to left, and the high-frequency slip ring rotor fixing lever is fixed on the right end face of the high-frequency slip ring with screws. The pin in the middle of the right end of the high-frequency slip ring rotor fixing lever has a clearance fit with the shaft hole of the pin concave platform on the left end face of the ring body assembly, realizing the transmission between the high-frequency slip ring group rotor and the electric slip ring group rotor;

[0007] The fiber optic slip ring group includes a fiber optic slip ring rotor dial, a fiber optic slip ring, and a fiber optic slip ring fixed disk. The right end of the "C"-shaped fiber optic slip ring fixed disk is fixed on the outer wall of the left end of the high-frequency slip ring fixed disk. The fiber optic slip ring is horizontally placed in the fiber optic slip ring fixed disk. The left end of the fiber optic slip ring passes through the round hole in the middle of the left side plate of the fiber optic slip ring fixed disk, and the fiber optic slip ring is fixed on the left side plate of the fiber optic slip ring fixed disk with screws. The right end of the fiber optic slip ring rotor dial and the left end of the high-frequency slip ring rotor fixing lever are connected and fixed together through a convex and concave slotted connection and realize a driving connection. The left end of the fiber optic slip ring rotor dial and the rotor end of the right end of the fiber optic slip ring are fixed and locked with screws from the side. The right end of the fiber optic slip ring is used as the rotor of the fiber optic slip ring group, and the left end of the fiber optic slip ring is used as the stator of the fiber optic slip ring group.

[0008] Considering that the electric slip ring, fiber optic slip ring, and high-frequency slip ring are all relatively rotating devices, and the electric slip ring group, fiber optic slip ring group, and high-frequency slip ring group are components that realize independent functions respectively. Therefore, in the present invention, the three slip ring groups in the combined type need to be kept in a certain coaxial fixed connection and transmission. The electric slip ring group is connected and driven through the pin concave platform at the left end of the ring body assembly and the clearance fit of the pin shaft hole of the high-frequency slip ring group. The right end of the high-frequency slip ring rotor fixing lever is fixed on the right end face of the high-frequency slip ring with screws. The left end of the high-frequency slip ring rotor fixing lever passes through the high-frequency slip ring and realizes synchronous rotation with the right end of the fiber optic slip ring rotor dial through a clearance slotted convex and concave fit.

[0009] In the present invention, since the structures of the independent electric slip ring, fiber optic slip ring, and high-frequency slip ring are combined in one slip ring, the effect of simultaneously transmitting multiple types of signals with one slip ring is realized; the three slip rings not only perform unique functions separately, but after combination, they will further reduce the space, realize the transmission of electrical signals, optical signals, and high-frequency signals in the same space and synchronous rotation, thereby improving the diversity of signal work, further reducing the space of the radar device structure, reducing multiple part conversions, and greatly improving the work efficiency.

[0010] Therefore, the present invention has the following advantages: 1. The combined slip ring can transmit electrical signals, optical signals, and high-frequency signals synchronously in the equipment, thereby improving the diversity of signal transmission;

[0011] 2. The product combines three independent functional slip rings together, which greatly reduces the space and improves the space redundancy rate;

[0012] 3. Electric slip rings, high-frequency slip rings and optical fiber slip rings function independently. Electric slip rings are used to transmit power and ordinary signals, optical fiber slip rings are used to transmit optical signals, and high-frequency slip rings are used to transmit high-frequency signals, which improves the stability and maintainability of signal transmission.

[0013] 4. The pin-pulling concave of the electric slip ring achieves the transmission effect by matching the pin of the high-frequency slip ring group with the shaft-hole clearance;

[0014] 5. The high-frequency slip ring rotor fixed lever and the optical fiber slip ring rotor dial in the high-frequency slip ring group are designed based on the grooved convex-concave matching structure to achieve the transmission effect;

[0015] 6. Electric slip rings, optical fiber slip rings and high frequency slip rings are designed to transmit signals through the clearance fit between pins and concave platforms and the clearance fit between slotted convex and concave platforms, thus realizing their own independent functional groups to achieve the effect of simultaneous rotation transmission of multiple signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the conductive slip ring of the present invention; Figure 2 yes Figure 1 Cross-section along the mid-BB direction;

[0017] Figure 3 It is the transmission connection diagram of the electric slip ring group and the high-frequency slip ring group;

[0018] Figure 4 This is the connection diagram of the high-frequency slip ring group and the optical fiber slip ring group;

[0019] Figure 5 yes Figure 4 Cross-section along the A axis;

[0020] Figure 6 It is a structural diagram of the electric slip ring group;

[0021] Figure 7 yes Figure 6 Cross-section along CC direction;

[0022] Figure 8 Schematic diagram of the external structure of the high-frequency slip ring;

[0023] Figure 9 Schematic diagram of the external structure of the optical fiber slip ring;

[0024] Figure 10Diagram of the clearance between the pin puller and the pin puller;

[0025] In the figure: ring body assembly 1, combined bracket 2, brush assembly 3, outer cover 4, bearing 5, bearing end cover 6, pin removal recess 7; high-frequency slip ring 8, high-frequency slip ring fixed plate 9, high-frequency slip ring rotor fixed lever 10, fiber optic slip ring rotor dial 11, fiber optic slip ring 12, fiber optic slip ring fixed plate 13, transmission shaft 14, wing handle 15, fixed plate waist groove 16, pin 17, bracket waist groove 18.

[0026] Specific implementation: The present invention is further described in detail below with reference to the embodiments and accompanying drawings.

[0027] An optoelectronic hybrid combined high-frequency signal transmission slip ring for radar, comprising an electric slip ring assembly, a high-frequency slip ring assembly, and an optical fiber slip ring assembly; wherein:

[0028] The slip ring assembly includes a ring body component 1, a combined bracket 2, a brush assembly 3, an outer cover 4, a bearing 5, a bearing end cover 6, and a pin recess 7; the brush assembly 3, the combined bracket 2, and the ring body component 1 are provided at the middle right end of the tubular outer cover 4, the combined bracket 2 is sleeved on the middle part of the outer wall of the ring body component 1 with a drive shaft 14 in the middle, and the left and right ends of the combined bracket 2 are provided with outwardly protruding wing handles 15, the combined bracket 2 is sleeved on the outer wall of the ring body component 1, and the combined bracket 2 and the left and right ends of the ring body component 1 are respectively connected by bearings 5, the brush assembly 3 is sleeved on the combined bracket On the left and right sides of the outer wall of the ring body assembly 1 between the frame 2 and the ring body assembly 1, screws 15 are screwed from the outside inward through the outer cover 4 into the wing handles 15 at the left and right ends of the combined bracket 2, fixing the outer cover 4 to the combined bracket 2. The ring body assembly 1, which serves as the rotor of the electric slip ring assembly, can rotate within the combined bracket 2, which serves as the stator of the electric slip ring assembly. The bearing end cover 6 is sleeved from left to right on the outer wall of the left end of the ring body assembly 1 and presses the bearing 5 at the left end. The screws fix the bearing end cover 6 to the edge of the left end face of the ring body assembly 1. A pin removal recess 7 is provided in the middle of the left end face of the ring body assembly 1, which is concave to the right.

[0029] The high-frequency slip ring assembly includes a high-frequency slip ring 8, a high-frequency slip ring fixing disk 9, and a high-frequency slip ring rotor fixing lever 10. The high-frequency slip ring assembly is arranged at the left end inside the outer cover 4. The annular high-frequency slip ring fixing disk 9 is fixed on the left end face of the combined bracket 2 by screws. Four fixing disk waist-shaped slots 16 on the high-frequency slip ring fixing disk 9 are aligned with the bracket waist-shaped slots 18 on the combined bracket 2 and locked and fixed with screws, so that the leads welded on the brush assembly 3 are led out from the four fixing disk waist-shaped slots 16 on the high-frequency slip ring fixing disk 9. As the rotor of the high-frequency slip ring assembly, the annular high-frequency slip ring 8 is sleeved in the middle of the high-frequency slip ring fixing disk 9 serving as the stator of the high-frequency slip ring assembly. The high-frequency slip ring rotor fixing lever 10 passes through the middle of the high-frequency slip ring 8 from right to left, and the high-frequency slip ring rotor fixing lever 10 is fixed on the right end face of the high-frequency slip ring 8 with screws. The pin 17 in the middle of the right end of the high-frequency slip ring rotor fixing lever 10 has a clearance fit with the shaft hole of the pin concave platform 7 on the left end face of the ring body assembly 1, realizing the transmission between the rotor of the high-frequency slip ring assembly and the rotor of the electric slip ring assembly.

[0030] The fiber optic slip ring assembly includes a fiber optic slip ring rotor dial 11, a fiber optic slip ring 12, and a fiber optic slip ring fixing disk 13. The right end of the "C"-shaped fiber optic slip ring fixing disk 13 is fixed on the outer wall of the left end of the high-frequency slip ring fixing disk 9. The fiber optic slip ring 12 is horizontally placed in the fiber optic slip ring fixing disk 13. The left end of the fiber optic slip ring 12 passes through the round hole in the middle of the left side plate of the fiber optic slip ring fixing disk 13, and the fiber optic slip ring 12 is fixed on the left side plate of the fiber optic slip ring fixing disk 13 with screws. The right end of the fiber optic slip ring rotor dial 11 and the left end of the high-frequency slip ring rotor fixing lever 10 are fixedly connected and driven through a concave-convex slotted connection. The left end of the fiber optic slip ring rotor dial 11 and the rotor end of the right end of the fiber optic slip ring 12 are fixedly locked with screws from the side. The right end of the fiber optic slip ring 12 serves as the rotor of the fiber optic slip ring assembly, and the left end of the fiber optic slip ring 12 serves as the stator of the fiber optic slip ring assembly.

[0031] Considering that the electric slip ring, fiber optic slip ring, and high-frequency slip ring are all relatively rotating devices, the three slip ring assemblies in the combined type of the present invention need to be kept fixedly connected and driven coaxially. The electric slip ring assembly is connected and driven by the pin concave platform 7 at the left end of the ring body assembly 1 in a clearance fit manner between the pin and the shaft hole of the pin 17 in the high-frequency slip ring assembly. The right end of the high-frequency slip ring rotor fixing lever 10 is fixed on the right end face of the high-frequency slip ring 8 with screws. The left end of the high-frequency slip ring rotor fixing lever 10 passes through the high-frequency slip ring 8 and then realizes synchronous rotation with the right end of the fiber optic slip ring rotor dial 11 through a clearance slotted concave-convex fit.

[0032] The above is the preferred implementation mode of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. An optoelectronic hybrid combined high-frequency signal transmission slip ring for radar, characterized by: It includes an electric slip ring group, a high-frequency slip ring group, and an optical fiber slip ring group; among which: The electric slip ring group includes a ring body assembly, a combined bracket, a brush assembly, an outer cover, bearings, bearing end covers, and a pin extraction concave platform; in the middle and right end inside the tubular outer cover, there are a brush assembly, a combined bracket, and a ring body assembly. The combined bracket is sleeved on the middle part of the outer wall of the ring body assembly with a transmission shaft in the middle. On both the left and right ends of the combined bracket, there are wing handles protruding outwards. The combined bracket is sleeved on the outer wall of the ring body assembly, and the combined bracket and the left and right ends of the ring body assembly are respectively movably connected through bearings. The brush assembly is sleeved on the left and right sides of the outer wall of the ring body assembly between the combined bracket and the ring body assembly. Screws pass through the outer cover from the outside and are screwed into the wing handles at both ends of the combined bracket to fix the outer cover on the combined bracket. The ring body assembly serving as the rotor of the electric slip ring group can rotate inside the combined bracket serving as the stator of the electric slip ring group; the bearing end cover is sleeved on the outer wall of the left end of the ring body assembly from left to right and presses the bearing at the left end. Screws fix the bearing end cover on the edge of the left end face of the ring body assembly. In the middle of the left end face of the ring body assembly concave to the right, there is a pin extraction concave platform; The high-frequency slip ring group includes a high-frequency slip ring, a high-frequency slip ring fixing disk, and a high-frequency slip ring rotor fixing lever. The high-frequency slip ring group is arranged at the left end inside the outer cover. The annular high-frequency slip ring fixing disk is fixed on the left end face of the combined bracket by screws; the annular high-frequency slip ring serving as the rotor of the high-frequency slip ring group is sleeved in the middle of the high-frequency slip ring fixing disk serving as the stator of the high-frequency slip ring group. The high-frequency slip ring rotor fixing lever passes through the middle of the high-frequency slip ring from right to left, and the high-frequency slip ring rotor fixing lever is fixed on the right end face of the high-frequency slip ring by screws. The pin in the middle of the right end of the high-frequency slip ring rotor fixing lever has a clearance fit with the shaft hole of the pin extraction concave platform on the left end face of the ring body assembly to achieve the transmission between the rotor of the high-frequency slip ring group and the rotor of the electric slip ring group; The optical fiber slip ring group includes an optical fiber slip ring rotor dial, an optical fiber slip ring, and an optical fiber slip ring fixing disk. The right end of the "C"-shaped optical fiber slip ring fixing disk is fixed on the outer wall of the left end of the high-frequency slip ring fixing disk. The optical fiber slip ring is horizontally placed in the optical fiber slip ring fixing disk. The left end of the optical fiber slip ring passes through the round hole in the middle of the left side plate of the optical fiber slip ring fixing disk. The optical fiber slip ring is fixed on the left side plate of the optical fiber slip ring fixing disk by screws. The right end of the optical fiber slip ring rotor dial and the left end of the high-frequency slip ring rotor fixing lever are fixedly connected and achieve transmission connection through convex and concave slotted connections. The left end of the optical fiber slip ring rotor dial and the rotor end of the right end of the optical fiber slip ring are fixedly locked with screws from the side. The right end of the optical fiber slip ring serves as the rotor of the optical fiber slip ring group, and the left end of the optical fiber slip ring serves as the stator of the optical fiber slip ring group.

2. The optoelectronic hybrid combined high-frequency signal transmission slip ring for radar according to claim 1, characterized in that: The four fixing disk waist-shaped grooves on the high-frequency slip ring fixing disk are aligned with the bracket waist-shaped grooves on the combined bracket and locked and fixed with screws, so that the leads welded on the brush assembly are led out from the four fixing disk waist-shaped grooves on the high-frequency slip ring fixing disk.

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