KR102050419B1 - Apparatus for transmitting signal using slip ling - Google Patents

Apparatus for transmitting signal using slip ling Download PDF

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Publication number
KR102050419B1
KR102050419B1 KR1020130101287A KR20130101287A KR102050419B1 KR 102050419 B1 KR102050419 B1 KR 102050419B1 KR 1020130101287 A KR1020130101287 A KR 1020130101287A KR 20130101287 A KR20130101287 A KR 20130101287A KR 102050419 B1 KR102050419 B1 KR 102050419B1
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KR
South Korea
Prior art keywords
slip ring
wire
antenna
signal
brush
Prior art date
Application number
KR1020130101287A
Other languages
Korean (ko)
Other versions
KR20150024168A (en
Inventor
김수겸
최문규
이종경
Original Assignee
한화테크윈 주식회사
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Application filed by 한화테크윈 주식회사 filed Critical 한화테크윈 주식회사
Priority to KR1020130101287A priority Critical patent/KR102050419B1/en
Publication of KR20150024168A publication Critical patent/KR20150024168A/en
Application granted granted Critical
Publication of KR102050419B1 publication Critical patent/KR102050419B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • 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
    • H01R39/08—Slip-rings
    • 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
    • H01R39/36—Connections of cable or wire to brush

Abstract

The present invention relates to a signal transmission apparatus using a slip ring having a transmit / receive antenna inside the slip ring to wirelessly transmit a large capacity image signal and a control signal. The signal transmission device using the slip ring supports a plurality of wire brushes each having a first wire for power transmission connected thereto, and a brush combination including a brush holder and a slip ring in contact with the wire brush and the second wire is connected to the insulating ring. An apparatus for transmitting an image using a slip ring including a slip ring assembly which is installed as a device, which is installed on an upper portion of the slip ring assembly inside a brush assembly to receive and radiate image signals and control signals transmitted from outside the first wire. And a second antenna substrate provided below the slip ring assembly inside the brush assembly and receiving the image signal and the control signal emitted from the first antenna substrate and outputting the image signal and the control signal to outside of the second wire. .

Description

Apparatus for transmitting signal using slip ling}

The present invention relates to a signal transmission device, and more particularly, to a signal transmission device using a slip ring for wirelessly transmitting a large capacity video signal using a slip ring.

Surveillance cameras generate live-view video signals by imaging. Surveillance cameras also transmit live-view video signals to the host devices while communicating with the host devices as monitoring devices. These surveillance cameras generally use a PTZ camera that can move up, down, left and right and has a zoom function.

1 is a view showing a general configuration of a PTZ camera 100 according to the prior art.

Referring to FIG. 1, the PTZ camera 100 includes a main body circuit unit 110, a tilting unit 120, and a panning unit 130. The tilting unit 120 incorporates an optical system and performs tilting according to a driving signal from the main body circuit unit 110. The panning unit 130 operates to pan the tilting unit 120 according to the driving signal from the main body circuit unit 110 between the main body circuit unit 110 and the tilting unit 120. Between the main body circuit unit 110 and the tilting unit 130, the panning shaft 140 has a built-in slip ring for transmitting electrical signals while rotating.

Here, the slip ring is a component that transmits power and data signals through a rotating shaft in a mechanical contact manner, and is an essential component for transmitting power and data inside an electronic device requiring rotational operation, such as a PTZ camera.

However, in order to transmit a large amount of video signals using the slip ring, the number of cables must be increased. However, due to mechanical limitations, it is impossible to transmit a high capacity video signal using the slip ring.

Domestic Publication No. 2010-0034842

The technical problem to be solved by the present invention is to provide a signal transmission apparatus using a slip ring that can transmit a large-capacity video signal and a control signal wirelessly by having a transmit / receive antenna inside the slip ring.

According to an aspect of the present invention, there is provided a signal transmission apparatus using a slip ring, including: a brush combination including a brush holder and supporting a plurality of wire brushes connected to a first wire for power transmission; and An apparatus for transmitting an image using a slip ring including a slip ring assembly in contact with a wire brush and a second ring connected to a second wire alternately installed with an insulating ring, the image being transmitted over the slip ring assembly in the brush assembly. A first antenna substrate installed to receive and radiate an image signal and a control signal transmitted from an outside of the first wire; And a second antenna substrate installed under the slip ring assembly inside the brush assembly and receiving the image signal and the control signal emitted by the first antenna substrate and outputting the image signal to the outside of the second wire. It is characterized by.

In the present invention, the first antenna substrate includes a plurality of antenna patterns, each antenna pattern is electrically connected, and is installed so that the surface of the substrate on which the antenna patterns are disposed faces downward. .

In the present invention, the second antenna substrate includes a plurality of antenna patterns, each antenna pattern is electrically connected, and is installed so that the surface of the substrate on which the antenna patterns are disposed is directed upward. .

In the present invention, a first fixing part which is included in the brush combination to fix the first antenna substrate; And a second fixing part included in the brush combination to fix the second antenna substrate.

In the present invention, a high frequency transmission module provided outside the slip ring and modulating the video signal and the control signal into a high frequency band and outputting the high frequency band to the first antenna substrate; And a high frequency receiving module provided outside the slip ring and configured to receive the high frequency image signal and the control signal received by the second antenna substrate and modulate the low frequency band into a low frequency band.

In the present invention, a first cable for electrically connecting the first antenna substrate and the high frequency transmission module; And a second cable electrically connecting the second antenna substrate and the high frequency receiving module.

As described above, according to the present invention, a transmission / reception antenna may be provided inside the slip ring to wirelessly transmit a large capacity image signal and a control signal. Accordingly, the electrical noise according to the operating characteristics of the contact method of the slip ring can be eliminated, and it is possible to overcome the design constraints for the device requiring the rotation operation according to the number of pins or the size of the slip ring.

1 is a view showing a general configuration of a PTZ camera 100 according to the prior art.
2 is a view showing the configuration of a signal transmission apparatus using a slip ring according to the present invention.
3 is an exploded perspective view of the slip ring of FIG. 2.
4 is a cross-sectional view illustrating a coupling of the slip ring of FIG. 2.
FIG. 5 is a view illustrating first and second connectors connected to first and second high frequency cables in FIG. 2.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components will be given the same reference numerals and redundant description thereof will be omitted. do.

2 is a view showing the configuration of a signal transmission apparatus using a slip ring according to the present invention.

Referring to FIG. 2, a signal transmission apparatus using a slip ring includes a slip ring 200, a high frequency transmission module 300, a high frequency receiving module 400, a first high frequency cable 500, a second high frequency cable 600, and The first antenna substrate 230 and the second antenna substrate 240 provided in the slip ring 200 are included. Here, the first antenna substrate 230 and the high frequency transmission module 300 are wired by the first high frequency cable 500, and the second antenna substrate 240 and the high frequency reception module 400 are connected to the second high frequency cable 600. ) Is wired. The first antenna substrate 230 may be a transmission antenna substrate, and the second antenna substrate 240 may be a reception antenna substrate.

In order to transmit a large-capacity video signal, a wide bandwidth signal bandwidth is required. Therefore, the high frequency transmission module 300 modulates the video signal and the control signal into a high frequency band, and then, through the first high frequency cable 500, the first antenna substrate 230. To send.

The first antenna substrate 230 provided on the slip ring 200 emits the received image signal and the control signal of the high frequency band, and the second antenna substrate 240 provided on the slip ring 200 is the first antenna substrate. A video signal and a control signal of the high frequency band radiated from 230 are received.

The high frequency receiving module 400 receives an image signal and a control signal of a high frequency band radiated from the second antenna substrate 240 through the second high frequency cable 600, and converts the image signal and a control signal of a low frequency band to output. .

Here, the power signal is transmitted to the wire of the slip ring 200, and the image signal and the control signal are wirelessly transmitted using the first and second antenna substrates 230 and 240, thereby not only transmitting a large amount of signals but also signals Are non-contact, reducing the effects of noise due to rotation / vibration and crosstalk.

Next, the structure of the slip ring 200 provided with the first and second antenna substrates 230 and 240 will be described with reference to FIGS. 3 and 4. 3 is a view showing an exploded perspective view of the slip ring 200, Figure 4 is a view showing a combined cross-sectional view of the slip ring 200.

Referring to FIGS. 3 and 4, the structure of the slip ring 200 is a fixture that does not rotate greatly, and the plurality of wire brushes 214a and 214b to which the plurality of first wires 215a and 215b are connected are respectively inserted into an insert molding ( A plurality of brush assemblies 210 formed by Insert Molding, and a plurality of second wires 227 connected to the wire brushes 214a and 214b and connected to a plurality of second wires 227, respectively, as rotating bodies rotated by a rotating means (not shown). The slip ring 224 is formed of a slip ring assembly 220 formed by insert molding at regular intervals.

The slip ring assembly 220 forms an insert molding structure in which the protruding step 228 is formed at one side of the shaft 221 and the insulating ring 223 and the slip ring 224 are alternately fixed, and the insulating ring 223 is formed. ) And the outermost of the slip ring 224 is alternately fixed is formed with a "V" shaped groove that is maintained at a predetermined angle (for example, about 85 ~ 95 °), as shown in Figure 4, the shaft 221 At the upper and lower sides of the first and second bearings 225 and 226 for smoothly rotating the slip ring assembly 220 are installed.

The reason for limiting the angle of the “V” groove of the slip ring 224 to 85 ° to 95 ° as described above is to maximize the contact area between the wire brushes 214a and 214b and the slip ring 224 and at the same time slip ring. This is to allow the wire brushes 214a and 214b to be easily inserted between the recesses of the respective slip rings 224 when the combination 220 and the brush combination 210 are assembled.

In addition, the brush assembly 210 surrounding the slip ring assembly 220 from the outside is divided into two brush holders 211a and 211b which are divided with respect to the slip ring assembly 220, and each brush holder ( First and second receiving grooves 212 and 213 into which the first and second bearings 225 and 226 are inserted are respectively formed on the upper and lower sides of 211a and 211b, respectively, and are installed inside the respective brush holders 211a and 211b. The wire brushes 214a and 214b are wires made of a gold alloy (nonferrous metal) material having a predetermined thickness, for example, a diameter of 0.2 to 0.3 mm, and the rear ends of the bodies bent in a "c" shape by insert molding. Both ends thereof are formed to extend to both sides of the slip ring 224 in a state of being inserted into the brush holders 211a and 211b.

The wire brushes 214a and 214b formed as described above form bent portions 216a and 216b that are bent outwardly at both ends thereof, thereby assembling the brush assembly 210 and the slip ring assembly 220. It is possible to prevent the warpage of the 214a and 214b, and to prevent the surface damage of the slip ring 224 caused by both ends of the wire brushes 214a and 214b, and between the bent portions 216a and 216b. By assembling the wire brushes 214a and 214b to be inclined inwardly so that the gap is 75 to 85% of the diameter of the slip ring 224, the assembly of the brush combination 210 and the slip ring assembly 220 can be easily performed. The wire brushes 214a and 214b are firmly in contact with the recesses of the slip ring 24 due to their elastic force, thereby increasing the contact efficiency between the wire brushes 214a and 214b and the slip ring 224. Reduce the occurrence of electrical noise At the same time it is possible to easily and more easily perform the assembly of the combination brush 210 and slip ring assemblies 220.

The first wires 215a and 215b fixed to the brush holders 211a and 211b of the brush combination 210 and connected to the plurality of wire brushes 214a and 214b are brush holders 211a and 211b, respectively. The second electric wire 227 is also fixed to the molding in the interior thereof and the contact portion is impregnated in the molding, and connected to a plurality of slip rings 224 fixedly installed on the slip ring assembly 220, the shaft 221, respectively. It is fixed together with the molding in the interior of the contact portion is impregnated in the molding, so that the contact portion of each wire (215a, 215b, 227) does not cause a poor contact due to the inflow of foreign matters such as dust, oxidation or flow Will be.

As described above, the wire brushes 214a and 214b are integrally molded with each of the brush holders 211a and 211b together with the first wires 215a and 215b, and the slip ring 224 and the second wire 227 are also formed. Is formed integrally with the shaft 221 of the slip ring assembly 220, and the wire brushes 214a and 214b installed in the respective brush holders 211a and 211b alternate with respect to the slip ring 224. Since the brush holders 211a and 211b are protruded to the inside of the furnace contact, the first and second bearings 225 and 226 inserted into the shaft 221 are inserted into the first and second receiving grooves 212 and 213. When the brush holders 211a and 211b are coupled to each other, the wire brushes 214a and 214b are brought into contact with the slip ring 224 and the assembly of the slip rings is completed.

Here, the first antenna substrate 230 is installed between the upper portion of the slip ring assembly 220 in the brush assembly 210, that is, the lower portion of the second bearing 226 of the shaft 221 and the upper portions of the rings 223 and 224. The first antenna substrate 230 receives and radiates a large-capacity video signal and a control signal output from the high frequency transmission module 300 through the first high frequency cable 500. Here, as shown in FIG. 3, the first antenna substrate 230 including the first and second surfaces includes a plurality of antenna patterns 232 on the first surface, and each antenna pattern 232 is electrically connected. Are connected to each other, and the first surface is installed to face downward. In other words, the first surface of the first antenna substrate 230 is provided to face the second antenna substrate 240. The antenna substrate 230 is fixed by the first fixing part 231 included in the brush combination 210. The position of the first fixing part 231 is the same as that of the first antenna substrate 230, and the first antenna substrate 230 is the second bearing lower portion and the rings 223 and 224 of the slip ring assembly 220 and the shaft 221. If installed between the top, the first fixing part 231 is installed at the same position of the brush combination 210.

In addition, the first antenna substrate 240 is installed between the lower portion of the slip ring assembly 220 in the brush assembly 210, that is, the lower portions of the rings 223 and 224 of the shaft 221 and the upper portion of the first bearing 225. The second antenna substrate 240 receives the high frequency image signal and the control signal radiated from the first antenna substrate 230 and outputs them to the high frequency receiving module 400 through the second high frequency cable 600. Here, the second antenna substrate 240 including the first surface and the second surface includes a plurality of antenna patterns 242 on the first surface, as shown in FIG. 3, and each antenna pattern 242 is electrically connected. Are connected to each other, and the first surface is installed to face upward. In other words, the first surface of the second antenna substrate 240 is provided to face the first antenna substrate 230. The antenna substrate 230 is fixed by the second fixing part 241 included in the brush combination 210. The position of the second fixing part 241 is the same as that of the second antenna substrate 240, and the second antenna substrate 240 is formed under the rings 223 and 224 of the slip ring assembly 220 and the shaft 221 and the first portion. If installed between the top of the bearing 225, the second fixing part 241 is installed in the same position of the brush combination 210.

FIG. 5 is a view illustrating first and second connectors 700 and 800 connected to first and second high frequency cables 500 and 600 of FIG. 2.

Referring to FIG. 5, the first high frequency cable 500 includes a first connector 700 to prevent the first high frequency cable 500 and the second high frequency cable 600 from being twisted by the rotation operation of the slip ring 200. ) May be connected, and a second connector 800 may be connected to the second high frequency cable 600. The first and second connectors 700 and 800 may include upper connectors 710 and 810, lower connectors 720 and 820, upper grounds 730 and 830, and lower grounds 740 and 840, respectively. Slip rings are transmitted to the upper connectors 710 and 810 and the lower connectors 720 and 820 where the image signals and the control signals are transmitted are not rotated, and the upper grounds 730 and 830 and the lower grounds 740 and 840 rotate. Even if the 200 is rotated, the first high frequency cable 500 and the second high frequency cable 600 are not twisted.

As described above, the transmitting / receiving antenna is provided inside the slip ring 200 to wirelessly transmit the large-capacity video signal and the control signal. Accordingly, the electrical noise according to the operating characteristics of the contact method of the slip ring can be removed, and it is possible to overcome the design constraints for the device requiring the rotational operation according to the number of pins or the size of the slip ring.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will understand that the present invention can be embodied in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown not in the above description but in the claims, and all differences within the scope should be construed as being included in the present invention.

200: slip ring 230: first antenna substrate
231: first fixing part 232, 242: antenna pattern
240: second antenna substrate 241: second fixing portion
300: high frequency transmission module 400: high frequency receiving module
500: first high frequency cable 600: second high frequency cable
700: first connector 800: second connector

Claims (6)

A brush combination including a plurality of wire brushes each connected with a first wire for power transmission and including a brush holder, and a slip ring assembly in which a slip ring in contact with the wire brush and a second wire is connected to an insulating ring is alternately installed. An apparatus for transmitting an image using a slip ring, including
A first antenna substrate installed on the slip ring assembly inside the brush assembly and receiving and radiating an image signal and a control signal transmitted from outside the first wire; And
And a second antenna substrate provided below the slip ring assembly inside the brush assembly and receiving the image signal and the control signal radiated from the first antenna substrate and outputting the image signal to the outside of the second wire.
Power signal is a signal transmission device using a slip ring, characterized in that transmitted through the first wire and the second wire. The method of claim 1,
The first antenna substrate,
It includes a plurality of antenna patterns, each antenna pattern is electrically connected, is installed so that the surface of the substrate on which the antenna patterns are disposed facing downward,
The second antenna substrate includes a plurality of antenna patterns, each antenna pattern is electrically connected, and a signal using a slip ring, wherein the surface of the substrate on which the antenna patterns are disposed is installed upward. Transmission device. The method of claim 1,
A high frequency transmission module provided outside the slip ring and configured to modulate the video signal and the control signal into a high frequency band and output the modulated signal to the first antenna substrate; And
And a high frequency receiving module provided outside the slip ring and configured to receive the high frequency image signal and the control signal received by the second antenna substrate and to modulate the low frequency band into a low frequency band. . delete delete delete
KR1020130101287A 2013-08-26 2013-08-26 Apparatus for transmitting signal using slip ling KR102050419B1 (en)

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KR1020130101287A KR102050419B1 (en) 2013-08-26 2013-08-26 Apparatus for transmitting signal using slip ling

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Application Number Priority Date Filing Date Title
KR1020130101287A KR102050419B1 (en) 2013-08-26 2013-08-26 Apparatus for transmitting signal using slip ling

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KR20150024168A KR20150024168A (en) 2015-03-06
KR102050419B1 true KR102050419B1 (en) 2019-11-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230146783A (en) 2022-04-13 2023-10-20 에이치알에스코리아 주식회사 Slip ring for vehicle
KR20230146782A (en) 2022-04-13 2023-10-20 에이치알에스코리아 주식회사 Slip ring for vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106848586B (en) * 2017-03-10 2023-05-23 深圳市偲诺电子科技有限公司 Rotor assembly of slip ring, slip ring and ship-borne communication-in-motion device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100396041B1 (en) * 2000-12-29 2003-09-02 손정태 A structure of slip-ring and the manufacturing method thereof
KR100987792B1 (en) 2008-09-25 2010-10-13 주식회사 로텍 Slip ring using optical elements
KR101140669B1 (en) * 2010-06-23 2012-05-03 안기용 Slip ring radio interface system of rotator camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230146783A (en) 2022-04-13 2023-10-20 에이치알에스코리아 주식회사 Slip ring for vehicle
KR20230146782A (en) 2022-04-13 2023-10-20 에이치알에스코리아 주식회사 Slip ring for vehicle

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