WO2019043923A1 - Câblage fixé à un noyau et procédé de fabrication d'un câblage fixé à un noyau - Google Patents

Câblage fixé à un noyau et procédé de fabrication d'un câblage fixé à un noyau Download PDF

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Publication number
WO2019043923A1
WO2019043923A1 PCT/JP2017/031648 JP2017031648W WO2019043923A1 WO 2019043923 A1 WO2019043923 A1 WO 2019043923A1 JP 2017031648 W JP2017031648 W JP 2017031648W WO 2019043923 A1 WO2019043923 A1 WO 2019043923A1
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WO
WIPO (PCT)
Prior art keywords
wiring
opening
core
heat
cored
Prior art date
Application number
PCT/JP2017/031648
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English (en)
Japanese (ja)
Inventor
厚志 小森
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2017/031648 priority Critical patent/WO2019043923A1/fr
Publication of WO2019043923A1 publication Critical patent/WO2019043923A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form

Definitions

  • the present invention relates to a cored wiring and a method of manufacturing the cored wiring by providing an annular core in the wiring to suppress electrical noise.
  • EMC Electromagnetic Compatibility
  • air conditioners have many sources of electrical noise such as DC (Direct Current) / DC power supply circuits, converter circuits and inverter circuits.
  • DC Direct Current
  • converter circuits converter circuits
  • inverter circuits As a countermeasure for suppressing the electrical noise generated from the air conditioner, it is general to provide a toroidal core in the wiring connecting between the electronic printed boards or between the electronic printed boards and each actuator.
  • Patent Document 1 discloses a technique for fixing a toroidal core to wiring.
  • a toroidal core provided with a lead insertion hole, and an electroconductive member inserted into the lead insertion hole of the toroidal core and provided with a bent portion at a portion protruding from both end sides of the toroidal core.
  • an inductance element including a second post-shrinkage insulation member in which the contraction insulation tube is thermally shrunk.
  • the bent portion is provided in the lead to fix the position of the toroidal core, but the wiring for connecting between the electronic printed boards or between the electronic printed boards and each actuator
  • the wiring for connecting between the electronic printed boards or between the electronic printed boards and each actuator In the case of three wires generally used as, for example, coated stranded wires, it is difficult to form a bent portion because the force to return to the original shape upon bending is strong. That is, depending on the structure and the number of wires, it is difficult to form the bent portion, so that the bent portion can not be provided, and there is a problem that the toroidal core can not be fixed at any position of the wire.
  • the bent portion since the bent portion is provided in the lead to fix the position of the toroidal core, the wire is bent at the bent portion and the wire is linearly provided. There was a problem that it was impossible.
  • the present invention has been made in view of the above, and it is an object of the present invention to provide a cored wiring in which an annular core can be fixed at an arbitrary position of the wiring and the wiring as a whole can be linearly provided. With the goal.
  • the cored wiring according to the present invention includes an annular core in which an insertion hole is formed.
  • the cored wiring is inserted from one opening of the insertion hole toward the other opening, and is folded back from the inner peripheral side to the outer peripheral side of the annular core in the other opening, and the inner peripheral side from the outer peripheral side in one opening It has the wiring folded back to the side and re-inserted from one opening to the other opening.
  • the cored wiring includes a post-shrinkage member in which a heat-shrinkable tube containing an annular core into which the wiring is inserted is thermally shrunk.
  • the cored wiring according to the present invention has an effect that the annular core can be fixed at an arbitrary position of the wiring and the wiring can be linearly provided as a whole.
  • a perspective view showing an example of a cored wiring according to an embodiment of the present invention Sectional view along line II-II in FIG. 1 The perspective view for demonstrating the manufacturing method of the wiring with a core concerning embodiment of this invention
  • the perspective view for demonstrating the manufacturing method of the wiring with a core concerning embodiment of this invention A perspective view showing an example of a cored wiring according to an embodiment of the present invention
  • FIG. 1 is a perspective view showing an example of a cored wiring according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG.
  • FIG. 3 and FIG. 4 are perspective views for explaining the method of manufacturing the cored wiring according to the embodiment of the present invention.
  • a cored wire 100 according to the embodiment of the present invention shown in FIGS. 1 and 2 includes a toroidal core 1, a wire 2 and a heat-shrinkable tube 3.
  • the toroidal core 1 is an example of an annular core. As shown in FIG. 3, the toroidal core 1 is formed with an insertion hole 1a.
  • the toroidal core 1 is a metal powder compacted and shaped and sintered.
  • Wiring 2 is formed of, for example, a first wiring 2a, a second wiring 2b, and a third wiring 2c. In the present embodiment, the wiring 2 is configured by three wires, but may be configured by one wire, two wires, or four or more wires.
  • the wiring 2 is inserted from one opening 1b of the insertion hole 1a toward the other opening 1c, and is folded back from the inner circumference 1d side of the toroidal core 1 to the outer circumference 1e side in the other opening 1c. It is extended along the outer periphery 1e, and is folded back from the outer periphery 1e side to the inner periphery 1d side in one opening 1b, and reinserted from one opening 1b to the other opening 1c.
  • the heat shrinkable tube 3 shown in FIG. 1 is an example of a heat shrinkable member.
  • the heat-shrinkable tube 3 containing the toroidal core 1 having the wire 2 inserted therein is thermally shrunk.
  • the heat-shrinkable tube 3 shown in FIG. 1 presses the wiring 2 against the outer periphery 1 e of the toroidal core 1.
  • the heat-shrinkable tube 3 preferably covers the entire toroidal core 1 and the entire wiring 2 in a portion wound around the toroidal core 1.
  • the heat-shrinkable tube 3 is made of an insulator and has insulation.
  • the heat-shrinkable tube 3 preferably functions as a buffer for the toroidal core 1 and also functions as a buffer for the wire 2 covered by the heat-shrinkable tube 3. In the present embodiment, for example, it is preferable to cover the heat-shrinkable tube 3 with a buffer tape in order to enhance the buffer performance.
  • the heat-shrinkable tube 3 is preferably made of a heat-resistant material and has heat resistance.
  • the heat shrinkable tube 3 is mainly made of a plastic material such as polyethylene and has insulation.
  • the plastic material is irradiated with an electron beam to cause a crosslinking reaction in the plastic material, whereby the heat-shrinkable tube 3 has a shape memory function.
  • the heat-shrinkable tube 3 is expanded and its inner diameter is expanded.
  • the heat-shrinkable tube 3 shown in FIG. 4 is in a state in which the inner diameter is expanded.
  • the heat-shrinkable tube 3 shown in FIG. 4 is shrunk as shown in FIG. 1 by the shape memory function when heat is applied.
  • the heat-shrinkable tube 3 covers the whole of the toroidal core 1 and a part of the wiring 2 so that the cored wiring 100 covers the whole of the toroidal core 1 and a part of the wiring 2.
  • the plastic layer acts as a cushioning material that protects the toroidal core 1 and the wire 2 from direct friction and rubbing.
  • the wiring 2 is inserted from one opening 1b of the insertion hole 1a of the toroidal core 1 in which the insertion hole 1a is formed toward the other opening 1c.
  • the wiring 2 is folded back from the inner periphery 1 d side of the toroidal core 1 to the outer periphery 1 e side.
  • the wiring 2 is extended along the outer periphery 1 e.
  • the wiring 2 is folded back from the outer periphery 1e side to the inner periphery 1d side.
  • the wiring 2 is again inserted from one opening 1 b toward the other opening 1 c.
  • FIG. 3 the wiring 2 is inserted from one opening 1b of the insertion hole 1a of the toroidal core 1 in which the insertion hole 1a is formed toward the other opening 1c.
  • the toroidal core 1 into which the wiring 2 is inserted is accommodated by the heat-shrinkable tube 3. Even when the force to return to the original shape when the wire 2 is bent is strong, maintaining the wire 2 wound around the toroidal core 1 by pulling the wire 2 in the right and left directions in FIG. Can.
  • the heat-shrinkable tube 3 containing the toroidal core 1 into which the wiring 2 is inserted is thermally shrunk by being heated.
  • the cored wiring 100 shown in FIG. 1 is manufactured.
  • the cored wiring 100 manufactured in this manner is used, for example, as a wiring for connecting the power supply terminal block 4 of the air conditioner 200 and the outdoor unit substrate 5 shown in FIG. 6 described later.
  • the heat-shrinkable tube 3 presses the wire 2 against the outer periphery 1 e of the toroidal core 1.
  • the toroidal core 1 is fixed to the wiring 2.
  • the wiring 2 is wound around the toroidal core 1, the position of the toroidal core 1 with respect to the wiring 2 can be arbitrarily changed by changing the turn-back position of the wiring 2. Therefore, the toroidal core 1 can be fixed to an arbitrary position of the wiring 2.
  • the wiring 2 is configured to be turned twice, that is, folded back twice, the wiring 2 can be provided linearly as a whole.
  • the entire toroidal core 1 is covered with the heat-shrinkable tube 3 made of an insulator.
  • the insulation of the toroidal core 1 can be secured, for example, the contact between the toroidal core 1 and the charging portion of the device is allowed. Therefore, the toroidal core 1 can be disposed at any position of the device.
  • the toroidal core 1 and the entire part of the wiring 2 wound around the toroidal core 1 are covered with the heat-shrinkable tube 3 functioning as a buffer material, the toroidal core 1 and the toroidal core 1 The wiring 2 in the portion wound around the core 1 can be protected.
  • the toroidal when the entire portion of the wire 2 in the portion wound around the toroidal core 1 is covered with the heat-shrinkable tube 3 made of a heat-resistant material, the toroidal is obtained even when the heat resistance of the wire 2 is low.
  • the wiring 2 in the portion wound around the core 1 can be protected.
  • the heat-shrinkable tube 3 does not cover the inner periphery 1 d side of the toroidal core 1 before the wire 2 is inserted into the insertion hole 1 a of the toroidal core 1.
  • the diameter of the portion through which the wire 2 is inserted is compared with the case where the inner periphery 1d side of the toroidal core 1 is also covered with the heat-shrinkable tube 3 before the wire 2 is inserted into the insertion hole 1a of the toroidal core 1 Does not get smaller.
  • the wiring 2 is further folded back from the inner periphery 1d side of the toroidal core 1 to the outer periphery 1e side along the outer periphery 1e. It may be stretched again, and in one opening 1b, it may be folded back from the outer periphery 1e side to the inner periphery 1d side, and may be inserted three times from one opening 1b to the other opening 1c. That is, in the present embodiment, the wiring 2 may be the cored wiring 100A configured to have two or more turns, for example, three turns. The number of turns is the number of times the wire 2 passes through the insertion hole 1 a of the toroidal core 1.
  • the target on which the wiring 2 is wound is the toroidal core 1, it may be a split core.
  • the split core is an example of an annular core.
  • the material of the toroidal core 1 and the split core may be ferrite.
  • FIG. 6 is a figure for demonstrating an example of the arrangement
  • the air conditioner 200 shown in FIG. 6 includes a power terminal block 4, an outdoor unit substrate 5, a reactor 6, a compressor 7, an indoor unit substrate 8, and a remote controller (hereinafter referred to as a remote control) 9. .
  • the outdoor unit substrate 5 includes a filter 5e configured of a coil 5a and capacitors 5b, 5c and 5d, a rectifier circuit 5f for rectifying a commercial AC voltage supplied through the power supply terminal block 4 and the filter 5e, and a rectifier circuit 5f. , And an inverter circuit 5h which converts the DC voltage smoothed by the smoothing capacitor 5g into an AC voltage and supplies the AC voltage to a motor for driving the compressor 7.
  • the outdoor unit substrate 5 is provided with an inverter control circuit 5i for controlling the inverter circuit 5h, an outdoor control microcomputer 5j for controlling the entire air conditioner 200, and an outdoor communication circuit 5k for performing mutual communication with the indoor unit substrate 8.
  • an inverter control circuit 5i for controlling the inverter circuit 5h
  • an outdoor control microcomputer 5j for controlling the entire air conditioner 200
  • an outdoor communication circuit 5k for performing mutual communication with the indoor unit substrate 8.
  • the indoor unit board 8 performs mutual communication between the indoor communication circuit 8a for performing mutual communication with the outdoor unit board 5, the indoor control microcomputer 8b for controlling the entire indoor unit board 8, and the remote control 9. And a remote control communication circuit 8c for performing the control.
  • the cored wiring 100 according to the present embodiment is used as a wiring for connecting the power supply terminal block 4 and the outdoor unit substrate 5.
  • the first wiring 2a corresponds to the power supply line 12a
  • the second wiring 2 b corresponds to the power supply line 12 b
  • the third wiring 2 c corresponds to the power supply line 12 c.
  • the cored wire 100 according to the present embodiment is used as a wire for connecting the outdoor unit substrate 5 and the compressor 7.
  • the first wire 2a corresponds to the compressor wire 13a and the second wire is used.
  • 2b corresponds to the compressor line 13b
  • the third wiring 2c corresponds to the compressor line 13c.
  • the cored wiring 100 according to the present embodiment is used as a wiring for connecting the outdoor unit substrate 5 and the indoor unit substrate 8.
  • the wiring is formed of two wirings of the substrate connection lines 14a and 14b. .
  • the core-attached wire 100 according to the present embodiment is used as a wire for connecting the power supply terminal block 4 and the safety ground 10.
  • the wire is formed of one wire of the safety ground wire 15.
  • the cored wiring 100 according to the present embodiment is used as a wiring for connecting the filter 5 e and the functional ground 11.
  • the wiring is configured by one of the functional ground wiring 16.
  • FIG. 7 is a perspective view for explaining an example of an arrangement location of the cored wiring when the cored wiring according to the embodiment of the present invention is used for an outdoor unit of an air conditioner.
  • the cored wiring 100 according to the present embodiment is used as a wiring for connecting the power supply terminal block 4 provided in the outdoor unit main body 17 and the outdoor unit substrate 5.
  • the cored wiring 100 is used as a wiring for connecting the power supply terminal block 4 and the outdoor unit substrate 5
  • the cored wiring 100 according to the present embodiment is used as a wiring for connecting the outdoor unit substrate 5 provided in the outdoor unit main body 17 and the compressor 7.
  • the cored wiring 100 When the cored wiring 100 is used as a wiring for connecting the outdoor unit substrate 5 and the compressor 7, the wiring 2 is wound around the toroidal core 1, so that the noise generated during the operation of the compressor 7 is suppressed.
  • the cored wiring 100 When the outdoor unit 300 has a plurality of substrates, the cored wiring 100 according to the present embodiment may be used as a wiring for connecting the plurality of substrates.
  • the cored wire 100 When the cored wire 100 is used as a wire for connecting a plurality of substrates of the outdoor unit 300, the wire 2 is wound around the toroidal core 1, and the noise generated when the plurality of substrates of the outdoor unit are energized Be suppressed.
  • the toroidal core 1 can be fixed to an arbitrary position of the power supply line 12 and the toroidal core 1 can be fixed to an arbitrary position of the compressor line 13. Can. Furthermore, the power supply line 12 can be provided linearly as a whole.
  • the heat-shrinkable tube 3 functioning as a buffer material, as shown in FIG.
  • damage to the toroidal core 1 due to the contact with the sheet metal 18 and the wiring 2 in the portion wound around the toroidal core 1 can be suppressed. That is, since the contact with the sheet metal 18 is permitted, the toroidal core 1 can be disposed at an arbitrary position.
  • the configuration shown in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and one of the configurations is possible within the scope of the present invention. It is also possible to omit and change parts.
  • 1 Toroidal core 1a insertion hole, 1b one opening, 1c other opening, 1d inner circumference, 1e outer circumference, 2 wiring, 2a first wiring, 2b second wiring, 2c third wiring, 3 heat-shrinkable tube , 4 power supply terminal block, 5 outdoor unit substrate, 5a coil, 5b, 5c, 5d capacitor, 5e filter, 5f rectifier circuit, 5g smoothing capacitor, 5h inverter circuit, 5i inverter control circuit, 5j outdoor control microcomputer, 5k outdoor communication circuit , 6 reactor, 7 compressor, 8 indoor unit board, 8a indoor communication circuit, 8b indoor control microcomputer, 8c remote control communication circuit, 9 remote control, 10 safety earth, 11 function earth, 12, 12a, 12b, 12c power line, 13 , 13a, 13b, 13c compressor lines, 14a, 14b substrate connection lines 15 Safety ground wire, 16 function ground wire, 17 outdoor unit main body, 18 metal plate, 100, 100A cored wire, 200 air conditioner, 300 outdoor unit.

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Abstract

L'invention concerne un câblage fixé à un noyau (100) comprenant : un noyau toroïdal (1) qui a un trou d'insertion formé à l'intérieur de celui-ci ; un câblage (2) qui est inséré à travers le trou d'insertion à partir d'une ouverture du trou d'insertion vers l'autre ouverture, est replié à partir d'un côté circonférentiel interne vers un côté circonférentiel externe du noyau toroïdal (1) au niveau de l'autre ouverture, est replié à partir du côté circonférentiel externe vers le côté circonférentiel interne au niveau de l'ouverture, et est réinséré à travers le trou d'insertion à partir de l'ouverture vers l'autre ouverture ; et un tube de contraction thermique (3) qui contient le noyau toroïdal (1) dans lequel le câblage (2) est inséré et qui est formé en étant contracté thermiquement.
PCT/JP2017/031648 2017-09-01 2017-09-01 Câblage fixé à un noyau et procédé de fabrication d'un câblage fixé à un noyau WO2019043923A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/031648 WO2019043923A1 (fr) 2017-09-01 2017-09-01 Câblage fixé à un noyau et procédé de fabrication d'un câblage fixé à un noyau

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Application Number Priority Date Filing Date Title
PCT/JP2017/031648 WO2019043923A1 (fr) 2017-09-01 2017-09-01 Câblage fixé à un noyau et procédé de fabrication d'un câblage fixé à un noyau

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU221507U1 (ru) * 2023-04-18 2023-11-09 Александр Александрович Чопенко Помехоподавляющий кабель питания

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01196106A (ja) * 1988-02-01 1989-08-07 Ricoh Co Ltd 分割型フエライトコア
JPH0951192A (ja) * 1995-08-04 1997-02-18 Hitachi Ltd 基板のシールド方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01196106A (ja) * 1988-02-01 1989-08-07 Ricoh Co Ltd 分割型フエライトコア
JPH0951192A (ja) * 1995-08-04 1997-02-18 Hitachi Ltd 基板のシールド方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU221507U1 (ru) * 2023-04-18 2023-11-09 Александр Александрович Чопенко Помехоподавляющий кабель питания
RU222994U1 (ru) * 2023-08-28 2024-01-25 Александр Александрович Чопенко Помехоподавляющий кабель питания

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