WO2020162654A1 - Structure de connexion de câble coaxial et procédé - Google Patents

Structure de connexion de câble coaxial et procédé Download PDF

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Publication number
WO2020162654A1
WO2020162654A1 PCT/KR2019/009190 KR2019009190W WO2020162654A1 WO 2020162654 A1 WO2020162654 A1 WO 2020162654A1 KR 2019009190 W KR2019009190 W KR 2019009190W WO 2020162654 A1 WO2020162654 A1 WO 2020162654A1
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WIPO (PCT)
Prior art keywords
insulator
coaxial cable
cable
covering
shield
Prior art date
Application number
PCT/KR2019/009190
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English (en)
Korean (ko)
Inventor
이명환
황창순
Original Assignee
주식회사 태양쓰리시
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Publication of WO2020162654A1 publication Critical patent/WO2020162654A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0515—Connection to a rigid planar substrate, e.g. printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
    • H01B3/445—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections

Definitions

  • the present invention relates to a coaxial cable connection structure and method, and more particularly, to a coaxial cable harness applicable to a small camera module and an image sensor, such as an endoscope camera module.
  • the conventional technique generally deals with a method of aligning and bonding coaxial cables in a horizontal direction to a circuit board.
  • the plane formed by the circuit board and the longitudinal axis of the cable are parallel.
  • Japanese Laid-Open Patent No. 2010-108635 deals with a method of vertically bonding a cable to a circuit board by bending a cable.
  • this prior art requires space to bend the coaxial cable.
  • the size of endoscope cameras is getting smaller, while the resolution of endoscope cameras is increasing. Accordingly, the high resolution small endoscope camera module has a pad (or electrode) of a new structure, and is not compatible with the conventional cable harness technology.
  • the method disclosed in U.S. Patent No. 8,513,536 B2 cannot be applied to a plurality of rows of pads, and the method disclosed in Japanese Patent Laid-Open No. 2010-108635 requires a space for bending the cable, so the size of the endoscope camera Is not suitable for the technological trend that is becoming more compact.
  • the present invention is to solve the limitations of the conventional cable harness technology by providing a coaxial cable bonding structure and bonding method applicable to a high resolution small endoscope camera module.
  • a cable fixing portion including an insulator, a copper plate covering the rear surface of the insulator, and a lead plate covering the rear surface of the copper plate; And a coaxial cable comprising a center line, an inner insulator covering the outer periphery of the center line, a shield covering the outer periphery of the inner insulator, and an outer insulator covering the outer periphery of the shield, wherein the copper plate
  • the coaxial cable is arranged on a side surface of the insulator so as to contact at least a portion, and by heating at least a portion of the lead plate, the lead plate is soldered to at least a portion of the shield.
  • the length of the inner insulator is 0.1 mm or less, and a boundary between the insulator and the copper plate may be spaced apart from a boundary between the inner insulator and the center line.
  • the side surface of the insulator includes a concave portion, and the coaxial cable may be arranged in the concave portion.
  • a side surface of the insulator includes concave edges, and a cable including a signal line and an insulator covering an outer circumference of the signal line and a plurality of coaxial cables are arranged at the concave edges, and the plurality of For a common ground between coaxial cables of, shields of the plurality of coaxial cables and signal lines of the cables may contact the copper plate.
  • the insulator may be formed of Teflon.
  • the cable fixing part regularly forms holes in a printed circuit board (PCB) including the insulator and the copper plate, and the printed circuit board including the holes is a unit of a predetermined size. It may be divided into a printed circuit board and formed by covering the lead plate on a copper plate of the unit printed circuit board.
  • PCB printed circuit board
  • the insulator includes an adhesive layer covering the entire surface of the insulator, the adhesive layer is adhered to a substrate including a pad of a camera module, and the center line may be electrically connected to the pad. .
  • the side surface of the insulator may include a plurality of concave portions repeated at a predetermined distance, and a plurality of coaxial cables may be arranged in the plurality of concave portions.
  • the cross section of the insulator may have a cross shape.
  • a coaxial cable comprising a center line, an inner insulator covering the outer periphery of the center line, a shield covering the outer periphery of the inner insulator, and an outer insulator covering the outer periphery of the shield
  • a connection method of comprising: generating a cable fixing part including an insulator, a copper plate covering a rear surface of the insulator, and a lead plate covering the rear surface of the copper plate; Arranging the coaxial cable on the side of the insulator so that the copper plate contacts at least a portion of the shield; And soldering the lead plate to at least a portion of the shield by heating at least a portion of the lead plate.
  • a plurality of coaxial cables can be bonded in a direction perpendicular to a circuit board, and a plurality of coaxial cables can be arranged not only in one row but also in two or more rows to be bonded to the circuit board. have.
  • a plurality of coaxial cables can be collectively bonded to a circuit board, thereby simplifying the operation process.
  • the bonding force between the coaxial cable and the circuit board can be strengthened, and thus the phenomenon that the coaxial cable is separated from the circuit board during the endoscopic procedure can be prevented by an external force.
  • the length of the internal insulator of the coaxial cable can be very short, thus minimizing signal attenuation and distortion caused by external factors, and between the coaxial cable and the circuit board.
  • the impedance matching of the small image sensor it is possible to transmit a high resolution image signal of a small image sensor with a sufficient length without loss.
  • FIG. 1 shows an exemplary structure of a pad of a small endoscope camera module.
  • FIG. 2 shows a cable fixing part of a coaxial cable splicing structure according to an embodiment of the present invention.
  • FIG 3 shows an arrangement of a cable fixing part and a coaxial cable according to an embodiment of the present invention.
  • FIG. 4 shows a joint structure of a coaxial cable according to an embodiment of the present invention.
  • FIG. 5 is a view for explaining a method of generating a cable fixing unit using a printed circuit board according to an embodiment of the present invention.
  • FIG. 6 shows an exemplary cable anchor produced according to the method of FIG. 5.
  • FIG. 7 shows a cable fixing part including an adhesive layer according to an embodiment of the present invention.
  • FIG 8 shows a joint structure of a coaxial cable using a cable fixing part including an adhesive layer according to an embodiment of the present invention.
  • FIG 9 shows a splicing structure of an extended coaxial cable according to an embodiment of the present invention.
  • FIG. 10 is a view for explaining a method of generating a cable fixing unit according to another embodiment of the present invention.
  • FIG. 11 is a view for explaining a method of generating a cable fixing unit according to another embodiment of the present invention.
  • FIG. 1 shows an exemplary structure of a pad of a small endoscope camera module.
  • the small endoscope camera module 100 may have a cross-sectional area of about 1 mm 2 or less.
  • the small endoscope camera module 100 may have a size of 1050 um or less in width (w1) and 1050 um in height (h1), and due to its small size, it can be used for minimally invasive surgery such as spinal endoscopy and bone density endoscopy. have.
  • the small endoscope camera module 100 may have four point pads 110a, 110b, 110c, and 110d on a circuit board at the rear side.
  • a cable for transmitting a signal, power, ground, and clock may be bonded to the four point pads 110a, 110b, 110c, and 110d, respectively.
  • the four point pads 110a, 110b, 110c, and 110d may have a pitch of 470um or less in width (w2) and 400um or less in height (h2).
  • the cable is bonded to the 4 point pads 110a, 110b, 110c, 110d in a direction perpendicular to the structure (Hereinafter, a'vertical junction structure') may be required.
  • a'vertical junction structure' the circuit board of the small endoscope camera module 100 having the 4-point pads 110a, 110b, 110c, and 110d, and the cable to be bonded to the 4-point pads 110a, 110b, 110c, 110d.
  • the longitudinal axis can be vertical.
  • the circuit board of the small endoscope camera module and the longitudinal axis of the cable to be bonded to the pad may be parallel.
  • the vertical bonding structure may be difficult to sufficiently secure a bonding area between the four-point pads 110a, 110b, 110c, and 110d and the cable. Accordingly, if the cable is simply soldered to the 4-point pads 110a, 110b, 110c, and 110d, the cable can be applied to the 4-point pads 110a, 110b, even with a small movement or small external force of the cable and the small endoscope camera module 100. 110c, 110d) can be easily peeled off.
  • the small endoscope camera module 100 may have a high resolution of 400 x 400 pixels or more.
  • the small endoscope camera module of low resolution uses a general cable (also referred to as a discrete wire or single cable) consisting only of an insulator covering the outer circumference of the signal line and the signal line, while the high resolution small endoscope camera module shown in FIG. 100 can use a coaxial cable to transmit the video signal without loss. Due to the structural characteristics of the coaxial cable, the coaxial cable harness structure may be more complex than the general cable harness structure.
  • FIG. 2 shows a cable fixing part of a coaxial cable splicing structure according to an embodiment of the present invention.
  • the cable fixing part 200 includes an insulator 210 (or an insulating layer), a copper plate 220 (or a copper layer) covering the rear surface of the insulator 210, and a lead plate 230 (or a lead plate) covering the rear surface of the copper plate 220 ) Can be included.
  • the front surface of the insulator 210 may face the four point pads 110a, 110b, 110c, and 110d of the small endoscope camera module 100.
  • the insulator 210 that does not conduct electricity may be made of a heat-resistant material or a thermosetting material.
  • the insulator 210 may be made of Teflon.
  • the insulator 210 may be made of a material generally used for a printed circuit board such as epoxy and phenol. Accordingly, the insulator 210 can prevent a short between the core wires of a plurality of coaxial cables, and heat generated by the soldering operation and heat generated by the small endoscope camera module 100 It can resist the phenomenon that the cable is peeled off due to heat.
  • At least a portion of the side surface of the insulator 210 may include recesses 212a, 212b, 212c, and 212d through which coaxial cables may be arranged.
  • the concave portions 212a, 212b, 212c, 212d are grooves, gaps, slits, or holes that are concave in a part of the insulator 210 to facilitate cable arrangement.
  • the insulator 210 has four recesses 212a, 212b at the edge so that four cables to be connected to the four point pads 110a, 110b, 110c, and 110d can be arranged. 212c, 212d).
  • three of the four recesses 212a, 212b, 212c, and 212d positioned at the edge of the insulator 210 may be bonded with coaxial cables for transmitting signals, power, and clocks, respectively.
  • a general cable for grounding may be bonded to the other recessed part.
  • the size and shape of the concave portions 212a, 212b, 212c, and 212d may be the same and may be regular. However, the size and shape of the concave portions 212a, 212b, 212c, and 212d may be different from each other and may be irregular depending on the process process.
  • the copper plate 220 and the lead plate 230 may have the same shape as the insulator 210. As will be described later in FIG. 5, the copper plate 220 may have the same shape while passing through the same process as the insulator 210, and the lead plate 230 is processed through a dipping operation on the finished copper plate 220. Can be created.
  • the copper plate 220 may contact at least a portion of a shield wire of a coaxial cable and may serve as an electrode for grounding. Since the copper plate 220 has the same shape as the insulator 210, as will be described later with reference to FIG. 3, common grounding between the plurality of coaxial cables can be easily implemented by the copper plate 220.
  • the lead plate 230 may serve to fix the cables arranged in the cable fixing part 200.
  • the external force is dispersed by the bonding force between the lead plate 230 of the cable fixing part 200 and the coaxial cable, the phenomenon that the cables and the 4-point pads 110a, 110b, 110c, and 110d are easily separated can be prevented. have.
  • the maximum horizontal length of the cable fixing part 200 may be shorter than the horizontal pitch w2 of the 4-point pads 110a, 110b, 110c, and 110d, and the maximum vertical length of the cable fixing part 200 is a 4-point pad ( It may be shorter than the vertical pitch h2 of 110a, 110b, 110c, and 110d. Therefore, according to the coaxial cable bonding structure disclosed in the present invention, since the size of the small endoscope camera module 100 may not be substantially increased, it may be advantageous for minimally invasive surgery.
  • FIG 3 shows an arrangement of a cable fixing part and a coaxial cable according to an embodiment of the present invention.
  • the coaxial cable 310 includes a center line 312, an inner insulator 314 covering the outer periphery of the center line 312, a shield 316 covering the outer periphery of the inner insulator, and an outer insulator covering the outer periphery of the shield 316 ( 318).
  • the center line 312 may be a wire for transmitting an image signal, power, and a clock of the small endoscope camera module 100.
  • the internal insulator 314 may prevent a short between the center line 312 and the shield 316.
  • the shield 316 or the shield wire may shield external factors to prevent signal distortion and attenuation of the center line, and an external insulator, also called a jacket, may protect the coaxial cable 310.
  • the coaxial cable 310 may be arranged on the side of the insulator 210.
  • the insulator 210 may include concave portions 212a, 212b, 212c, 212d on the side surfaces to guide the coaxial cable 310 arrangement, and the coaxial cable 310 is concave portion 212a , 212b, 212c, 212d).
  • 300a shows a coaxial cable 310 and a cable fixing part 200 spaced apart from the coaxial cable 310
  • 300b shows a coaxial cable 310 and a coaxial cable 310 with recesses 212a, 212b, 212c, 212d ) Shows the cable fixing part 200 located on the above.
  • 300c shows a cross section in the AA′ direction of the drawing of 300b.
  • the center line 312, the inner insulator 314, and the shield 316 are sequentially exposed from the front of the cable fixing part 200, and the outer insulator 318 is a cable fixing part It can be separated from the back of the 200.
  • the coaxial cable 310 may be arranged on the side of the insulator 210 so that the copper plate 220 of the cable fixing part 200 contacts at least a part of the shield 316 of the coaxial cable 310. have.
  • the lead plate 230 may be soldered to at least a portion of the shield 316 of the coaxial cable 310.
  • a part of the soldering plate 230 in contact with the coaxial cable 310 does not need to be accurately heated, so that the soldering operation can be facilitated.
  • the central portion of the lead plate 230 which is relatively easy to heat, is heated to the soldering temperature, so that the copper plate 220 is shielded.
  • the lead plate 230 may be fixed to at least a part of the shield 316 in a state in contact with at least a part of the 316.
  • the lead plate 230 is soldered to at least a portion of the shield 316, but may not be soldered to the external insulator 318.
  • the method of fixing the coaxial cable 310 by the lead plate 230 is not limited thereto.
  • the lead plate 230 may be soldered to at least a portion of the shield 316, a boundary between the shield 316 and the external insulator 318, and at least a portion of the external insulator 318.
  • the length of the inner insulator 314 of the coaxial cable 310 can be reduced to 0.1 mm or less. Accordingly, by effectively shielding external factors in a state where the shield 316 is very close to the center line 312, signal distortion and attenuation of the center line 312 can be minimized, and a high-resolution image of the small endoscope camera module 100 The signal can be transmitted in sufficient length without loss.
  • the boundary 330 between the insulator 210 and the copper plate 220 in the cable fixing part 200 is a coaxial cable.
  • the boundary 340 between the inner insulator 314 and the center line 312 at 310 may be spaced apart by a predetermined distance or more.
  • FIG. 4 shows a joint structure of a coaxial cable according to an embodiment of the present invention.
  • 400a shows a bonding structure between a plurality of coaxial cables 310a, 310c, and 310d, the cable fixing part 200, and the small camera module 100
  • 400b is a cross section in the BB' direction of the bonding structure of 400a
  • 400c shows a cross section in the direction B"B"" of the junction structure of 400a.
  • the concave portions 212a, 212b, 212c, and 212d of the cable fixing portion 200 may be located at an edge of the side surface of the insulator 210 (hereinafter, referred to as'concave edge').
  • the shields 316a, 316c, 316d of the plurality of coaxial cables 310a, 310c, 310d are provided with a cable fixing part ( A plurality of coaxial cables 310a, 310b, 310d may be arranged on the concave edges 212a, 212b, 212c, 212d of the cable fixing part 200 so as to contact the copper plate 220 of 200 together.
  • a general cable including a signal line 312b and an insulator 314b covering the outer periphery of the signal line 312b may be arranged on any one of the concave edges 212a, 212b, 212c, 212d, and a plurality of coaxial cables
  • the signal line 312b of a general cable may contact the copper plate 220 of the cable fixing part 200.
  • a plurality of coaxial cables 310a, 310c, 310d may be bonded to the pads 110a, 110c, 110d for signal, power, and clock, respectively, and the general cable 312b is connected to the pad 110b for grounding. Can be joined.
  • all a plurality of coaxial cables 310a, 310c, 310d and general cables 310b are fixed to the cable fixing part 200 with a single soldering operation. can do.
  • the central part of the lead plate 230 which is relatively easy to heat, is heated to the soldering temperature, so that the copper plate 220 In contact with the shields 316a, 316c, 316d of the coaxial cables 310a, 310c, 310d and the signal line 312b of the general cable 310b, all a plurality of coaxial cables 310a, 310c, 310d and general The cable 312b can be fixed.
  • the front of the insulator 210 may face the small endoscope camera module 100, and the center lines 312a, 312c, and the plurality of coaxial cables 310a, 310c, 310d, 312d) and the signal line 312b of the general cable 310b are soldered to the 4-point pads 110a, 110b, 110c, 110d, and the center lines 312a, 312c, 312d of the plurality of coaxial cables 310a, 310c, 310d And the signal line 312b of the general cable 310b and the four point pads 110a, 110b, 110c, 110d may be electrically connected.
  • FIG. 5 is a view for explaining a method of generating a cable fixing unit using a printed circuit board according to an embodiment of the present invention.
  • the printed circuit board 500 may include an insulator (or insulating layer) and a copper plate (or copper layer). Therefore, if the printed circuit board 500 is used, the cable fixing part 200 of FIGS. 2 to 4 can be easily manufactured.
  • holes 520a, 520b, 520c, 520d, 520e, and 520f may be regularly formed at predetermined intervals in the printed circuit board 500 including an insulator and a copper plate.
  • regular holes 520a, 520b, 520c, 520d, 520e and 520f may be formed in the printed circuit board 500 by using a router bit or a drill bit for a PCB.
  • each of the holes 520a, 520b, 520c, 520d, 520e, and 520f may be used as concave portions 212a, 212b, 212c, 212d of the cable fixing portion 200, so the coaxial cable 310
  • each of the holes 520a, 520b, 520c, 520d, 520e, and 520f may have a diameter greater than the diameter of the coaxial cable 310, and may have a circular shape.
  • the pitches (w4, h4) between the holes (520a, 520b, 520c, 520d, 520e, 520f) is a small endoscope camera module 100 ) May be the same as the pitches w2 and h2 of the four-point pads 110a, 110b, 110c, and 110d.
  • the size, shape, and pitch of the holes 520a, 520b, 520c, 520d, 520e, and 520f may be constant, but due to an error in the working process, the holes 520a, 520b, 520c, 520d , 520e, 520f) may have irregular sizes, shapes, and pitches.
  • the printed circuit board 500 in which the holes 520a, 520b, 520c, 520d, 520e, and 520f are formed may be divided into unit printed circuit boards 510 having a predetermined size. Specifically, the holes 520a, 520b, 520c, 520d, 520e so that some of the holes 520a, 520b, 520d, 520e become concave portions 512a, 512b, 512c, 512d of the unit printed circuit board 510
  • the unit printed circuit board 510 may be divided from the printed circuit board 500 on which the, 520f) is formed.
  • the cable fixing part 200 including the insulator 210, the copper plate 220, and the lead plate 230 of FIGS. 2 to 4 is formed. can do.
  • FIG. 6 shows an exemplary cable anchor produced according to the method of FIG. 5.
  • Regular holes 660a, 660b, 660c, 660d are formed in the printed circuit board 600 including the insulating layer 610 and the copper layer 620, and the holes 660a, 660b, 660c, 660d are formed.
  • a unit printed circuit board 610 of a predetermined size may be divided from the printed circuit board 600 having a predetermined size. Thereafter, by dipping lead on the copper layer 620 of the unit printed circuit board 630, a cable fixing part 630 including the insulator 640, the copper plate 650, and the lead plate 660 may be formed. have.
  • the order of the drilling process, the lead dipping process, and the division process of the unit printed circuit board 630 may be changed. For example, after forming holes 660a, 660b, 660c, 660d in the printed circuit board 600, the copper layer of the printed circuit board 600 in which holes 660a, 660b, 660c, 660d are formed ( After dipping lead into 620, the unit printed circuit board 630 may be divided from the printed circuit board 600 having the holes 660a, 660b, 660c, and 660d and the dipped lead.
  • the unit printed circuit board 630 may be divided from the printed circuit board 600 including 660c and 660d) and diped lead.
  • some of the holes of the printed circuit board 600 may be recessed portions 642a, 642b, 642c, and 642d positioned on the side surfaces of the unit printed circuit board 610.
  • FIG. 7 shows a cable fixing part including an adhesive layer according to an embodiment of the present invention.
  • the insulator 210 may include an adhesive layer 710 covering the entire surface of the insulator 210. Accordingly, the cable fixing part 700 may sequentially include an adhesive layer 710, an insulator 210, a copper plate 220, and a lead plate 230 from the front to the rear.
  • the adhesive layer 710 may be fixed to the circuit board of the small camera module 100 to facilitate bonding between the coaxial cable and the small camera module.
  • the adhesive layer 710 may have the same shape as the insulator 210.
  • the adhesive layer 710 may be smaller than the insulator 210, and the adhesive layer 710 smaller than the insulator 210 may be located in a central region of the insulator 210 to secure a bonding area.
  • FIG 8 shows a joint structure of a coaxial cable using a cable fixing part including an adhesive layer according to an embodiment of the present invention.
  • 800a shows a bonding structure between a plurality of coaxial cables 310a, 310c, and 310d, a cable fixing part 700, and a small camera module 100
  • 800b is a cross section in the CC' direction of the bonding structure of 800a
  • 800c shows a cross section in the C''C''' direction of the junction structure of 800a.
  • the front surface of the adhesive layer 710 may be adhered to a circuit board including the four point pads 110a, 110b, 110c, and 110d of the small endoscope camera module 100.
  • the center lines 312a, 312b, 312c, 312d of the plurality of coaxial cables 310a, 310c, 310d and the signal line 312b of the general cable 310b are connected to the 4-point pads 110a, 110b, 110c, 110d.
  • FIG 9 shows a splicing structure of an extended coaxial cable according to an embodiment of the present invention.
  • the cable fixing part 900 may be extended.
  • the side surface of the insulator 922 of the cable fixing part 900 is a small endoscope camera module pad with a plurality of concave parts 930a, 930b, 930c, 930d, 940a, 940b, 940c, 940d repeated at a predetermined distance. It can contain as many as In addition, a plurality of coaxial cables may be arranged on the concave portions 930a, 930b, 930c, 930d, 940a, 940b, 940c, 940d and electrically bonded to the endoscope camera module pad.
  • a general cable for grounding is arranged in any one of the concave portions 930a, 930b, 930c, 930d, 940a, 940b, 940c, 940d, and may be electrically bonded to the endoscope camera module pad.
  • the concave portions 930a, 930b, 930c, 930d are located on the first side of the insulator 922, and the remaining concave portions 940a, 940b, 940c, 940d are insulators 922 ) Can be located on the second side.
  • the first side and the second side may be opposite sides, and thus, a plurality of coaxial cables may be arranged in 2 rows and m columns on the cable fixing part 900.
  • the structure and effect of the insulator 922, the copper plate 924, the lead plate 926, and the adhesive layer 928 included in the cable fixing part 900 may be the same as described above with reference to FIGS. 1 to 8. , Redundant description will be omitted.
  • FIG. 10 is a view for explaining a method of generating a cable fixing unit according to another embodiment of the present invention.
  • the concave portions 1040a, 1040b, 1040c, and 1040d of the cable fixing portion 1030 may be spaced apart from the side edges while being positioned on the side surfaces of the insulator 1032.
  • the concave portions 1040a, 1040b, 1040c, and 1040d may be located in the central side of the insulator.
  • the coaxial cable 1040 may be arranged in the concave portions 1040a, 1040b, 1040c, and 1040d located in the central portion of the side of the insulator.
  • the concave portions 1040a, 1040b, 1040c, and 1040d of the cable fixing portion 1030 can be located at the center of the side surface of the insulator 1032.
  • FIG. 11 is a view for explaining a method of generating a cable fixing unit according to another embodiment of the present invention.
  • a cross section of the insulator of the cable fixing part 1130 may have a cross shape.
  • the cable fixing part 1130 may include cable guide parts 1132a, 1132b, 1132c, and 1132d having a right angle shape on the side of the insulator.
  • the cable guide portions 1132a, 1132b, 1132c, and 1132d having a right angle shape may mean a groove, a gap, a slit, or a hole in which the side of the insulator is cut at a right angle, and coaxial
  • the cables 1140 may be arranged on the cable guides 1132a, 1132b, 1132c, and 1132d.
  • the cable fixing part 1130 When creating the cable fixing part 1130 using the printed circuit board 1100, square holes 1120a, 1120b, 1120c, 1120d, 1120e, 1120f are regularly drilled in the printed circuit board 1100, and By separating the unit printed circuit board 1100 of a predetermined size from the printed circuit board 1100 on which the holes 1120a, 1120b, 1120c, 1120d, 1120e, 1120f are formed, the cable guide portions 1132a, 1132b having a right angle shape , 1132c, 1132d) may be generated.
  • FIG. 12 is a flowchart of a method for splicing a coaxial cable according to an embodiment of the present invention.
  • a cable fixing part 200 including an insulator 210, a copper plate 220 covering the rear surface of the insulator 210, and a lead plate 230 covering the rear surface of the copper plate 220 may be generated.
  • the cable fixing part 200 may be generated using a printed circuit board 500, and the cable fixing part 200 is a printed circuit board.
  • the steps of generating using 500 include: drilling a hole in the printed circuit board 500, separating the unit printed circuit board 500 from the printed circuit board 500 in which the hole is formed, and the unit printed circuit board It may include dipping lead in 500.
  • the coaxial cable 310 may be arranged on the side of the insulator 210 of the cable fixing part 200 so that the copper plate 220 contacts at least a part of the shield 316 of the coaxial cable 310. .
  • step S1230 by heating at least a part of the lead plate 230 of the cable fixing part 200, the lead plate 230 may be soldered to at least a part of the shield 316 of the coaxial cable 310.
  • the adhesive layer 710 of the cable fixing part 200 may be adhered to a circuit board including the four point pads 110a, 110b, 110c, 110d of the small endoscope camera module 100, and the coaxial cable 310
  • the center line 312 of may be soldered to the 4-point pads 110a, 110b, 110c, and 110d of the small endoscope camera module 100.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Endoscopes (AREA)

Abstract

Selon un mode de réalisation de la présente invention, l'invention concerne une structure de connexion d'un câble coaxial comprenant : une unité fixe de câble comprenant un isolant, une plaque de cuivre recouvrant la surface arrière de l'isolant, et une plaque de connexion recouvrant la surface arrière de la plaque de cuivre ; et un câble coaxial comprenant une ligne centrale, un isolant interne recouvrant la circonférence externe de la ligne centrale, un blindage recouvrant la circonférence externe de l'isolant interne, et un isolant externe recouvrant la circonférence externe de l'écran, le câble coaxial étant disposé sur la surface latérale de l'isolant de telle sorte que la plaque de cuivre est en contact avec au moins une partie de l'écran, et au moins une partie de la plaque de connexion est chauffée, ce qui permet de souder la plaque de connexion sur au moins une partie du blindage.
PCT/KR2019/009190 2019-02-08 2019-07-24 Structure de connexion de câble coaxial et procédé WO2020162654A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0015156 2019-02-08
KR1020190015156A KR101972864B1 (ko) 2019-02-08 2019-02-08 동축 케이블의 접속 구조 및 방법

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WO2020162654A1 true WO2020162654A1 (fr) 2020-08-13

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Publication number Priority date Publication date Assignee Title
JP6674065B1 (ja) * 2019-08-28 2020-04-01 平河ヒューテック株式会社 センサとケーブルとの接続構造、接続用ケーブル、及び製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080080911A (ko) * 2007-03-02 2008-09-05 호시덴 가부시기가이샤 전기 커넥터
JP2010108635A (ja) * 2008-10-28 2010-05-13 Hitachi Cable Ltd 同軸ケーブルと基板の接続構造及び接続方法
JP2011119409A (ja) * 2009-12-02 2011-06-16 Olympus Corp 電子回路モジュールおよび同軸ケーブルの接続方法
KR101526179B1 (ko) * 2014-03-10 2015-06-05 주식회사 엠씨넥스 와이어홀더를 이용한 전선의 방수 장치
JP2016015267A (ja) * 2014-07-02 2016-01-28 オリンパス株式会社 実装用ケーブル、および集合ケーブル

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080080911A (ko) * 2007-03-02 2008-09-05 호시덴 가부시기가이샤 전기 커넥터
JP2010108635A (ja) * 2008-10-28 2010-05-13 Hitachi Cable Ltd 同軸ケーブルと基板の接続構造及び接続方法
JP2011119409A (ja) * 2009-12-02 2011-06-16 Olympus Corp 電子回路モジュールおよび同軸ケーブルの接続方法
KR101526179B1 (ko) * 2014-03-10 2015-06-05 주식회사 엠씨넥스 와이어홀더를 이용한 전선의 방수 장치
JP2016015267A (ja) * 2014-07-02 2016-01-28 オリンパス株式会社 実装用ケーブル、および集合ケーブル

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