CN113422270A

CN113422270A - Compartment electrical rotary connector

Info

Publication number: CN113422270A
Application number: CN202110728837.8A
Authority: CN
Inventors: 夏仁善; 朱晓东; 喻强平; 张强; 王志
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-09-21
Anticipated expiration: 2041-06-29
Also published as: CN113422270B

Abstract

The invention relates to a bulkhead electric rotary connector, which comprises a hollow rotating shaft made of a metal material and a support frame rotationally matched with the periphery of the hollow rotating shaft, wherein a plurality of groups of electric slip rings are axially assembled on the periphery of the hollow rotating shaft at intervals, each group of electric slip rings are fixed on the hollow rotating shaft through an insulating support ring, and adjacent groups of electric slip rings are separated by a spacer ring made of a metal material and fixed on the hollow rotating shaft; the supporting frame is provided with electric brushes matched with the electric slip rings, and each group of electric slip rings and the electric brushes matched with the electric slip rings are positioned in a cabin surrounded by two cabin separation plates fixedly assembled on the supporting frame, a separation ring positioned on the hollow rotating shaft and an insulating support ring. The electric rotary connector is internally divided into a plurality of cabins, each signal is in an independent cabin, and the signals are not interfered with each other.

Description

Compartment electrical rotary connector

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a bulkhead electric rotary connector.

Background

The electric rotary connector is internally provided with a cavity, all signals are transmitted in a cavity, and the signals are mutually interfered.

Disclosure of Invention

In order to solve the above problems, the present invention provides a bulkhead electrical rotary connector with a novel structure, which is divided into a plurality of cabins by a bulkhead plate, so as to avoid mutual interference of a plurality of signals in the same cabin.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The invention provides a bulkhead electric rotating connector, which comprises a hollow rotating shaft made of a metal material and a support frame rotationally matched with the periphery of the hollow rotating shaft, wherein a plurality of groups of electric slip rings are axially assembled on the periphery of the hollow rotating shaft at intervals, each group of electric slip rings are fixed on the hollow rotating shaft through an insulating support ring, and adjacent groups of electric slip rings are separated by an isolating ring made of a metal material and fixed on the hollow rotating shaft; the supporting frame is provided with electric brushes matched with the electric slip rings, and each group of electric slip rings and the electric brushes matched with the electric slip rings are positioned in a cabin surrounded by two cabin separation plates fixedly assembled on the supporting frame, a separation ring positioned on the hollow rotating shaft and an insulating support ring.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

In the bulkhead electrical rotary connector, the isolating ring and the insulating support ring are matched with the axially extending groove in the periphery of the hollow rotating shaft to form a plurality of wiring channels, each wiring channel corresponds to one cabin, and the electrical slip ring in each cabin is connected with the wire in the wiring channel corresponding to the cabin through the through hole in the insulating support ring.

In the bulkhead electrical rotary connector, the positions corresponding to the other cabins in the routing channel are all provided with shielding members for realizing shielding with the cabin.

In the bulkhead electrical rotary connector, the shielding element located at the position where the wire penetrates out in the routing channel is a shielding sleeve through which the wire penetrates, and the shielding element not located at the position where the wire penetrates out is a shielding plate for blocking the routing channel.

In the bulkhead electrical rotary connector, the isolating ring located between the adjacent sets of electrical slip rings is a split structure in axial butt joint, and a positioning groove for positioning the shielding member is formed on the inner side of the split butt joint position of the isolating ring.

In the bulkhead electrical rotary connector, each set of electrical slip rings includes 3 electrical slip rings, 4 insulation support rings corresponding to the set of electrical slip rings, 3 of the insulation support rings have L-shaped cross sections, and the other cross section is I-shaped.

In the bulkhead electrical rotary connector, the position of the outer periphery of the isolating ring close to the bulkhead plate is further provided with an annular protrusion, and the protrusion height of the annular protrusion is greater than the distance between the bulkhead plate and the outer periphery of the isolating ring.

In the bulkhead electrical rotary connector, the support frame includes a front end cover and a rear end cover rotatably coupled to two ends of the hollow rotating shaft through bearings, and a plurality of connecting rods located between the front end cover and the rear end cover.

In the bulkhead electrical rotary connector, the bulkhead plate is fixed to the connecting rod, and the electric brush is located on the printed board fixed to the connecting rod.

Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the invention can achieve considerable technical progress and practicability, has wide industrial utilization value and at least has the following advantages: the electric rotary connector is internally divided into a plurality of cabins, each signal is in an independent cabin, and the signals are not interfered with each other.

The support frame is of a split structure, so that the structure is simple, the processing and the assembly are convenient, and the processing and the assembly difficulty is reduced.

Drawings

Fig. 1 is a perspective view of a bulkhead electrical rotary connector of the present invention;

fig. 2 is a front view of the bulkhead electrical rotary connector of the present invention;

FIG. 3 is a cross-sectional view C-C of FIG. 2;

fig. 4 is a cross-sectional view of a bulkhead electrical rotary connector of the present invention;

fig. 5 is another cross-sectional view of the bulkhead electrical rotary connector of the invention;

fig. 6 is a side view of fig. 5.

[ description of main element symbols ]

1: hollow rotating shaft

2: supporting frame

21: front end cover

22: rear end cap

23: connecting rod

3: compartment plate

4: isolating ring

41: annular bulge

5: electric slip ring

6: electric brush

7: printed board

8: insulating support ring

9: routing channel

10: shielding sleeve

11: shielding plate

12: bearing assembly

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the bulkhead electrical rotary connector according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-6, which are schematic structural diagrams of parts of the bulkhead electrical rotary connector according to the present invention, the bulkhead electrical rotary connector includes a hollow rotating shaft 1 made of a metal material and extending in a left-right direction, and a supporting frame 2 rotatably mounted on an outer periphery of the hollow rotating shaft 1, the outer periphery of the hollow rotating shaft 1 is further fixedly mounted with a plurality of electrical slip rings 5 through an insulating supporting ring 8, a printed board 11 fixed on the supporting frame 2 is provided with an electrical brush 6 adapted to the electrical slip rings 5, and when the electrical slip rings 5 rotate with the hollow rotating shaft, the electrical slip rings 5 are always kept in elastic contact with the electrical brush 6.

The electric connector also comprises an isolating ring 4 made of metal materials and used for enabling the electric slip ring 5 to be located in different cabins, and a cabin separation plate 3 used for enabling the electric brush 6 to be located in different cabins, the electric brush 6 and the electric slip ring 5 are matched to be located in the same cabin, and the cabin is composed of a printed board, two side cabin separation plates, an insulating support ring and an isolating ring, so that mutual isolation among different signals is achieved. In the embodiment of the invention, three electrical slip rings and one printed board are arranged in the same chamber, but the invention is not limited to the embodiment.

In the embodiment of the invention, the insulating support rings 8 are of a split structure, the insulating support rings 8 of the electric slip rings 5 assembled in different cabins are separated by the isolating ring 4, and the isolating ring 4 and the insulating support rings 8 rotate along with the hollow rotating shaft 1. The cabin separation plate 3 is fixed on the support frame 2 and is in clearance fit with the isolation ring 4, and can rotate relatively along with the support frame 2 relative to the isolation ring 4. And the position of the outer periphery of the isolating ring 4 close to the cabin partition plate 3 is also provided with an annular bulge 41, and the height of the bulge of the annular bulge 41 is greater than the distance between the cabin partition plate 3 and the outer periphery of the isolating ring 4, thereby realizing the full-surrounding type separation of the cabin.

The periphery of the hollow rotating shaft is further provided with grooves which correspond to the electric slip rings in the cabins and extend along the axial direction, the grooves are matched with the isolating rings 4 and the insulating support rings 8 to form wiring channels 9, each cabin corresponds to one wiring channel 9, wires connected with the electric slip rings 5 in each cabin are distributed in the corresponding wiring channels 9, and each electric slip ring 5 is connected with the corresponding wires in the wiring channels 9 through the corresponding through holes 81 in the insulating support rings 8. That is, each routing channel is communicated with the corresponding electrical slip ring in the cabin through the through hole on the insulating support ring 8. In order to reduce the signal interference between the compartments caused by the routing channels, a shielding element for shielding the other compartments (i.e. the compartments whose electrical slip rings are not connected to the routing channels) is disposed in each routing channel 9. Specifically, the shielding element comprises a shielding sleeve 10 and a shielding plate 11, wherein the shielding sleeve 10 is distributed on one side of the routing channel through which the wires pass, and when the wires reach the position, the wires pass through the shielding sleeve 10; the shielding plate is located at the side of the wiring channel where no conducting wire passes through, and because no conducting wire passes through the side, the channel can be completely isolated by the shielding plate 11, and signal interference of other cabins is prevented. In an embodiment of the invention, the shields are each located between adjacent compartments for ease of assembly, the shields being located by locating means located in locating slots inside the spacer ring. Specifically, the isolating ring 4 between the two compartments is a split structure, and a positioning groove for positioning the shielding member is formed on the inner side of the position where the two split parts are butted.

In order to facilitate assembly, in the embodiment of the present invention, the supporting frame 2 includes a front end cover 21 and a rear end cover 22 rotatably coupled to two ends of the hollow rotating shaft 1 through bearings 12, and further includes a plurality of connecting rods 23 fixed between the front end cover 21 and the rear end cover 22, wherein the printed board 7 and the compartment plate 3 are fixed on the connecting rods 23. Specifically, the printed board 7 is fixed between two connecting rods 23, two cabin separation boards 3 are respectively arranged on the left side and the right side of the printed board 7, the cabin separation boards 3 are annular boards, through holes matched with the connecting rods 23 are formed in the annular boards 3, the cabin separation boards 3 are fixedly supported on the connecting rods 23, and electric brushes fixed to the bottoms of the printed boards are located in axially-separated spaces of the cabin separation boards 3 on the two sides. The electric slip ring corresponding to the electric brush on the printed board is positioned in an axial space surrounded by the isolating ring 4 and the peripheral bulge thereof, and the peripheral bulge of the isolating ring 4 is matched with the compartment partition plate 3 to realize the compartment which is axially separated by the isolating ring and the compartment partition plate in an axially full-surrounding leakage-free type separation.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A bulkhead electrical rotary connector comprising a hollow shaft made of a metal material and a support rotatably fitted around an outer periphery of the hollow shaft, characterized in that: the periphery of the hollow rotating shaft is also provided with a plurality of groups of electric slip rings at intervals along the axial direction, each group of electric slip rings is fixed on the hollow rotating shaft through an insulating support ring, and adjacent groups of electric slip rings are separated through an isolating ring which is fixed on the hollow rotating shaft and made of a metal material; the supporting frame is provided with electric brushes matched with the electric slip rings, and each group of electric slip rings and the electric brushes matched with the electric slip rings are positioned in a cabin surrounded by two cabin separation plates fixedly assembled on the supporting frame, a separation ring positioned on the hollow rotating shaft and an insulating support ring.

2. The bulkhead electrical rotary connector of claim 1, wherein: the isolating ring, the insulating support ring and the periphery of the hollow rotating shaft are circumferentially distributed and axially extended, the isolating ring and the insulating support ring are matched with each other to form a plurality of wiring channels, each wiring channel corresponds to one cabin, and the electric slip ring in each cabin is connected with a wire in the wiring channel corresponding to the cabin through a through hole in the insulating support ring.

3. The bulkhead electrical rotary connector of claim 1, wherein: and shielding parts for realizing shielding between the wiring channel and the cabin are arranged at positions corresponding to other cabins in the wiring channel.

4. The bulkhead electrical rotary connector of claim 3, wherein: the shielding part at the wire routing position in the wire routing channel is a shielding sleeve for the wire to pass through, and the shielding part at the wire routing position is a shielding plate for plugging the side wire routing channel.

5. The bulkhead electrical rotary connector of claim 4, wherein: the isolating ring between the adjacent groups of electric slip rings is of an axially butted split structure, and a positioning groove for positioning the shielding piece is formed on the inner side of the split butted position of the isolating ring.

6. The bulkhead electrical rotary connector of claim 1, wherein: every electric slip ring of group all includes 3 electric slip rings, and the insulating support ring that corresponds with this electric slip ring of group has 4, and wherein 3 the cross-sections all are the L type, and another cross-section is the I type.

7. The bulkhead electrical rotary connector of claim 1, wherein: the position of the periphery of the isolating ring, which is close to the compartment plate, is also provided with an annular bulge, and the height of the annular bulge is greater than the distance between the compartment plate and the peripheral surface of the isolating ring.

8. The bulkhead electrical rotary connector of claim 1, wherein: the support frame comprises a front end cover and a rear end cover which are rotatably matched at two ends of the hollow rotating shaft through bearings, and a plurality of connecting rods which are positioned between the front end cover and the rear end cover.

9. The bulkhead electrical rotary connector of claim 8, wherein: the compartment plate is fixed on the connecting rod, and the electric brush is positioned on the printed board fixed on the connecting rod.