WO2017208919A1 - Filter circuit and connector - Google Patents

Filter circuit and connector Download PDF

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Publication number
WO2017208919A1
WO2017208919A1 PCT/JP2017/019307 JP2017019307W WO2017208919A1 WO 2017208919 A1 WO2017208919 A1 WO 2017208919A1 JP 2017019307 W JP2017019307 W JP 2017019307W WO 2017208919 A1 WO2017208919 A1 WO 2017208919A1
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WO
WIPO (PCT)
Prior art keywords
wiring
filter
connector
electrode
electrically connected
Prior art date
Application number
PCT/JP2017/019307
Other languages
French (fr)
Japanese (ja)
Inventor
淳 東條
明生 渡部
Original Assignee
株式会社村田製作所
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 株式会社村田製作所 filed Critical 株式会社村田製作所
Priority to JP2018520830A priority Critical patent/JP6610783B2/en
Publication of WO2017208919A1 publication Critical patent/WO2017208919A1/en

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H01R13/7197—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with filters integral with or fitted onto contacts, e.g. tubular filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks

Definitions

  • the present invention relates to a filter circuit and a connector, and more particularly to a filter circuit and a connector including a capacitance element.
  • the three-terminal capacitor is a capacitance element, and a conductive plate is connected to one end side of the chip capacitor, and a leg portion is connected to the other end side of the chip capacitor. Further, in the three-terminal capacitor, two wires (lead wires) are connected to the conductive plate, and another wire is connected to the leg portion.
  • this three-terminal capacitor is used in a filter circuit that removes noise components from the power supply.
  • the filter circuit is configured by cutting a wire connected to the power source, connecting a lead wire of a three-terminal capacitor to each of the cut wires, and connecting another lead wire to the ground electrode.
  • a filter circuit can be configured by connecting a three-terminal capacitor in the middle of an electric wire connected to a power source.
  • an object of the present invention is to provide a filter circuit provided in the middle of two electric wires and a connector for relaying the electric wires, which can cancel the parasitic inductance of the capacitance element and the wiring without specialized knowledge.
  • the filter circuit which concerns on one form of this invention is a filter circuit provided in the middle of two electric wires, Comprising: The 1st filter part provided in the middle of the 1st electric wire of two electric wires, and two A second filter portion provided in the middle of the second electric wire of the electric wires, the first filter portion being electrically connected to the first electric wire at each of the first capacitance element and the first electric wire.
  • a first filter electrically connected to the first electrode formed on the capacitance element; and a second wire electrically connected to the second electrode formed on the first capacitance element, the second filter unit Includes a second capacitance element, a third wiring electrically connected to the second electric wire at both ends, and a third wiring electrically connected to a third electrode formed on the second capacitance element, and a second capacitance.
  • the first formed on the element 4th wiring electrically connected to the electrode, each of the 1st wiring and 3rd wiring has at least 1 coil part, and 2nd wiring and 4th wiring are 2nd wiring and 4th. Each is fixed at a position where the distance to the wiring is a predetermined distance or more, and is electrically connected to the ground electrode.
  • the filter circuit which concerns on one form of this invention is a connector which relays an electric wire, Comprising: The 1st connection part for electrically connecting with two electric wires, Two electric wires on the side different from a 1st connection part A second connection portion for electrical connection with the first filter portion electrically connected to the first electric wire of the two electric wires, and the second electric wire of the two electric wires and the electric connection A first filter element connected to the first capacitance element, the first filter element being electrically connected to the first electric wire at both ends, and a first capacitance element formed on the first capacitance element.
  • Each of the third wirings has at least one coil portion, and the second wiring and the fourth wiring are each fixed at a position where the distance between the second wiring and the fourth wiring is not less than a predetermined distance. It is electrically connected to the ground electrode.
  • each of the first wiring and the third wiring has at least one coil portion, and the second wiring and the fourth wiring have a predetermined distance between the second wiring and the fourth wiring.
  • Each is fixed at the above position and electrically connected to the ground electrode, so that parasitic inductance can be canceled out without specialized knowledge, and magnetic coupling between the second wiring and the fourth wiring can be kept low. It is possible to improve the noise suppression effect in the high frequency band.
  • the filter circuit is provided in the middle of the electric wire and removes a noise component of the power source.
  • the filter circuit described below is described as being formed as a connector that relays electric wires.
  • the present invention is not limited to this, and does not have a shape as a connector, and a filter circuit formed on a circuit board may be simply connected directly in the middle of an electric wire.
  • FIG. 1A and 1B are a plan view and a cross-sectional view of a connector 100 according to Embodiment 1 of the present invention.
  • 1A is a plan view of the connector 100
  • FIG. 1B is a cross-sectional view of the connector 100.
  • FIG. 2 is a diagram for explaining a configuration in which the connector 100 according to Embodiment 1 of the present invention is connected to another connector to relay an electric wire.
  • the wiring 2 and the wiring 3 are disposed in the resin mold 1, and one electrode 4 a of the capacitor 4 is electrically connected to the wiring 2, and one electrode 5 a of the capacitor 5 is electrically connected to the wiring 3. Yes. Further, the metal terminal 6 is electrically connected to the other electrode 4 b of the capacitor 4, and the metal terminal 7 is electrically connected to the other electrode 5 b of the capacitor 5.
  • the right part of the connector 100 in the figure is the connection part 10 connected to the connector 10a shown in FIG.
  • the connector 10 a By inserting the connector 10 a into the connection portion 10, one of the two electric wires 50 a is electrically connected to the wiring 2, and the other electric wire 60 a is electrically connected to the wiring 3.
  • the left part of the connector 100 in the figure is a connecting portion 20 that is connected to the connector 20a shown in FIG.
  • the connector 20 a into the connecting portion 20 By inserting the connector 20 a into the connecting portion 20, one of the two electric wires 50 b is electrically connected to the wiring 2 and the other electric wire 60 b is electrically connected to the wiring 3.
  • the connector 100 inserts the connector 10a into the connecting portion 10 and the connector 20a into the connecting portion 20 to connect the electric wire 50a and the electric wire 50b via the wiring 2, and the electric wire 60a and the electric wire 60b via the wiring 3, respectively.
  • the connector 100 is a relay connector that connects the connector 10a and the connector 20a, and is a connector that incorporates a filter circuit.
  • the two electric wires are cut (the electric wires 50a and 50b, the electric wires 60a and the electric wires 60b), and a filter circuit built in the connector 100 is provided in the middle of the two electric wires.
  • the connector 100 includes filter units 30 and 40 between the connection unit 10 and the connection unit 20.
  • the filter units 30 and 40 constitute a filter circuit.
  • the coil portion 2 a is formed by arranging the wires 2 in a loop shape, one electrode 4 a of the capacitor 4 is formed on the wire 2 forming the coil portion 2 a, and the capacitor 4 is formed on the metal terminal 6.
  • One electrode 4b of each is connected.
  • the filter unit 30 cancels the parasitic inductance of the capacitor 4 by the inductance of the coil unit 2 a formed by the wiring 2.
  • the coil part 3a is formed in the filter part 40 by arranging the wiring 3 in a loop shape, and one electrode 5a of the capacitor 5 is connected to the metal terminal 7 on the wiring 3 forming the coil part 3a.
  • One electrode 5b of the capacitor 5 is connected to each of the two.
  • the filter unit 40 cancels the parasitic inductance of the capacitor 5 by the inductance of the coil unit 3 a formed by the wiring 3. That is, in the connector 100, since the coil portions 2a and 3a that cancel the parasitic inductance are formed by the wirings 2 and 3 without specialized knowledge, the noise suppression effect in the high frequency band can be improved.
  • Wirings 2 and 3 are covered wires, for example, electric wires that are insulated by applying a coating of polyvinyl chloride, polyethylene, or the like to a single or stranded copper wire. As a result, the wirings 2 and 3 do not need to be separately insulated like lead wires that are not coated with an insulation coating, and a larger current can be passed. Of course, the wirings 2 and 3 may be single wires or stranded copper wires which are not covered.
  • Capacitors 4 and 5 are capacitance elements, for example, chip capacitors of 3.2 mm ⁇ 2.5 mm ⁇ 2.5 mm.
  • the capacitors 4 and 5 connect the portions of the wirings 2 and 3 that are not covered with one electrode 4a and 5a of the pair of electrodes by solder.
  • the metal terminals 6 and 7 formed of a metal plate are connected to one electrode 4b and 5b of the pair of electrodes by solder.
  • the metal terminals 6 and 7 extend in the direction of the back side of FIG. 1A (left side of FIG. 1B), and the cross-sectional shape is L-shaped.
  • the metal terminals 6 and 7 are formed of a metal plate, the distance between the terminals can be kept constant, and each of the terminals can be fixed at a position where a distance between the terminals equal to or greater than a predetermined distance is secured. it can.
  • the metal terminals 6 and 7 are not limited to metal plates, and may have a rod shape as long as the distance between the terminals can be kept constant.
  • FIG. 3 is a circuit diagram showing an equivalent circuit of connector 100 according to Embodiment 1 of the present invention.
  • FIG. 3A is an equivalent circuit of the connector 100 using an inductor considering magnetic coupling
  • FIG. 3B is an equivalent circuit of the connector 100 using an inductor not considering magnetic coupling.
  • the coil part 2a is equivalent to the inductor L1 and the inductor L2 connected in series by the electrode 4a. It can be regarded as a circuit.
  • the electrode 4b of the capacitor 4 is electrically connected to the ground electrode GND through the metal terminal 6, the capacitor 4 connects the capacitor C4 and the inductor L3 having a parasitic inductance (equivalent series inductance (ESL)) in series.
  • ESL Equivalent series inductance
  • the coil part 3a can be regarded as an equivalent circuit in which the inductor L4 and the inductor L5 are connected in series by the electrode 5a.
  • the electrode 5b of the capacitor 5 is electrically connected to the ground electrode GND via the metal terminal 7, the capacitor 5 can be regarded as an equivalent circuit in which a capacitor C5 and a parasitic inductance inductor L6 are connected in series. .
  • the inductor L1 and the inductor L2 are tightly coupled, and a pseudo negative inductance component is generated.
  • This negative inductance component can cancel the parasitic inductance (inductor L3) of the capacitor 4 and the metal terminal 6, and the inductance component of the capacitor 4 and the metal terminal 6 can be apparently reduced.
  • the self-resonance frequency is increased and the noise suppression effect in the high frequency band can be improved.
  • the filter portion 30 can cancel the parasitic inductance (inductor L3) of the capacitor 4 and the metal terminal 6 to realize a wide band, and can suppress noise in the high frequency band. Can be improved.
  • the coupling coefficient between the inductor L1 and the inductor L2 is K1.
  • the inductor L4 and the inductor L5 are tightly coupled, and a pseudo negative inductance component is generated.
  • This negative inductance component can cancel the parasitic inductance (inductor L6) of the capacitor 5 and the metal terminal 7, and the inductance component of the capacitor 5 and the metal terminal 7 can be apparently reduced.
  • the self-resonance frequency is increased and the noise suppression effect in the high frequency band can be improved.
  • the filter unit 40 can provide a wide band by canceling the parasitic inductance (inductor L3) of the capacitor 5 and the metal terminal 7 by providing the coil unit 3a in the wiring 3, and the noise suppression effect in the high frequency band can be achieved. Can be improved.
  • the coupling coefficient between the inductor L4 and the inductor L5 is K1.
  • the capacitor 4 has a capacitor C4 of 1.0 ⁇ F and an inductor L3 of 1 nH.
  • the inductors L1 and L2 are 2nH, respectively.
  • the coupling coefficient K1 between the inductor L1 and the inductor L2 is 0.5 (50%).
  • the filter unit 30 can cancel the parasitic inductance of 1 nH of the inductor L3 with a negative inductance component ( ⁇ 1 nH) generated by coupling the inductors L1 and L2 of 2 nH at 50%.
  • the filter unit 40 can cancel the parasitic inductance of 1 nH of the inductor L6 with a negative inductance component ( ⁇ 1 nH) generated by coupling the inductors L4 and L5 of 2 nH at 50%.
  • the connector 100 connects the metal terminal 6 of the filter unit 30 and the metal terminal 7 of the filter unit 40 to the same ground electrode GND, the influence of magnetic coupling between the metal terminal 6 and the metal terminal 7 is considered. There must be. That is, it is necessary to consider that the inductor L3 and the inductor L6 are magnetically coupled with the coupling coefficient K2. Therefore, the equivalent circuit of the connector 100 is considered based on the equivalent circuit shown in FIG. 3B in which an inductor having no magnetic coupling is replaced.
  • the inductor L1, the inductor L2, the inductor L4, and the inductor L5 shown in FIG. 3A have an inductance size L
  • the inductor L3 and the inductor L6 have an inductance size Lg.
  • the inductors L1 and L2 shown in FIG. 3A have inductances of 3 (L + K1 ⁇ L), (L + K1 ⁇ L), and ( ⁇ K1 ⁇ L). Can be replaced with two inductors.
  • the inductors L4 and L5 shown in FIG. 3 (a) have inductances of (L + K1 ⁇ L), (L + K1 ⁇ L), ( ⁇ K1 ⁇ L) as shown in FIG.
  • the inductors L3 and L6 shown in FIG. 3A have three inductances (Lg ⁇ K2 ⁇ Lg), (Lg ⁇ K2 ⁇ Lg), (Lg ⁇ K2 ⁇ Lg), ( K2 ⁇ Lg) can be replaced with three inductors.
  • the inductance component connected to the ground electrode GND (K2 ⁇ Lg) is not directly connected to the capacitor 4 and the capacitor 5, but remains as a common parasitic inductance of the filter unit 30 and the filter unit 40.
  • the coupling coefficient K2 between the inductor L3 and the inductor L6 increases, the common parasitic inductance of the filter unit 30 and the filter unit 40 increases, so that the noise suppression effect in the high frequency band decreases. Therefore, in the connector 100, it is necessary to keep the magnetic coupling between the inductor L3 and the inductor L6 low.
  • FIG. 4 is a graph for explaining the relationship between the coupling coefficient K2 and the distance between the metal terminals.
  • the horizontal axis represents the distance (mm) between the metal terminal 6 and the metal terminal 7
  • the vertical axis represents the coupling coefficient K2 between the inductor L3 and the inductor L6.
  • the coupling coefficient K2 decreases as the distance between the metal terminal 6 and the metal terminal 7 increases. For example, when the distance between the metal terminal 6 and the metal terminal 7 is 2 mm, the coupling coefficient K2 is 0.7, and when the distance between the metal terminal 6 and the metal terminal 7 is 7 mm, the coupling coefficient K2 is 0.3. .
  • FIG. 5 is a graph showing transmission characteristics with respect to frequency of the equivalent circuit shown in FIG.
  • the horizontal axis represents frequency Freq (GHz)
  • the vertical axis represents transmission characteristics S21 (dB).
  • the transmission characteristics S21 increase at a frequency Freq (high frequency band) of 0.010 GHz or higher. That is, as the coupling coefficient K2 increases, the connector 100 cannot reduce the output signal of the frequency Freq of 0.010 GHz or higher, and the noise suppression effect in the high frequency band is reduced.
  • the coupling coefficient K2 needs to be smaller than 0.42. In order to make the coupling coefficient K2 smaller than 0.42, it is necessary to secure a distance of 5 mm or more between the metal terminal 6 and the metal terminal 7 from the graph shown in FIG. That is, the predetermined distance is 5 mm.
  • the metal terminals 6 and 7 are formed of a metal plate and are electrically connected and fixed to the electrodes 4b and 5b of the capacitors 4 and 5, so that, for example, the distance between the metal terminal 6 and the metal terminal 7 Can be fixed at a position where 5 mm or more is secured (see FIG. 1B). That is, the connector 100 can improve the noise suppression effect in the high frequency band by keeping the coupling coefficient K2 low even without specialized knowledge.
  • connector 100 according to Embodiment 1 of the present invention is a connector that relays electric wires, and wiring 2 (corresponding to the first wiring) and wiring 3 (corresponding to the third wiring) are coil portions. 2a and 3a, and the metal terminal 6 (corresponding to the second wiring) and the metal terminal 7 (corresponding to the fourth wiring) have a predetermined distance (for example, 5 mm) between the metal terminals 6 and 7 or more.
  • the coil 4.5a corresponding to the first and second capacitance elements
  • the common parasitic inductance of filter unit 30 (corresponding to the first filter unit) and filter unit 40 (corresponding to the second filter unit) is reduced, and capacitors 4, 5 and the parasitic inductance of the metal terminals 6 and 7 can be canceled to improve the noise suppression effect in the high frequency band.
  • the filter unit 30 is provided in the middle of one of the two electric wires 50a and 50b (corresponding to the first electric wire), and the filter unit 40 is one of the two electric wires. It is provided in the middle of 60a, 60b (corresponding to the second electric wire).
  • the connector 100 is electrically connected to the two electric wires 50a and 60a (corresponding to the first connecting portion) and connected to be electrically connected to the two electric wires 50b and 60b. Part 20 (corresponding to the second connection part).
  • the connector 100 can relay the electric wire 50a and the electric wire 50b, and the electric wire 60a and the electric wire 60b by connecting the connecting portion 10 to the connector 10a and the connecting portion 20 to the connector 20a, respectively.
  • the wiring 2 is electrically connected to the electric wires 50a and 50b at both ends, and is also electrically connected to the electrode 4a (corresponding to the first electrode) formed on the capacitor 4, and the wiring 3 is connected to both ends.
  • the electric wires 60a and 60b are electrically connected to the electric wires 60a and 60b and electrically connected to an electrode 5a (corresponding to a third electrode) formed on the capacitor 5.
  • the side (upper side in the figure) where the electrode 4b (corresponding to the second electrode) of the capacitor 4 (corresponding to the first capacitance element) is formed in the filter part 30 is equivalent to the capacitor 5 (corresponding to the second capacitance element) in the filter part 40. )
  • the connector 100 can easily secure a distance between the wirings of the metal terminal 6 connected to the electrode 4b and the metal terminal 7 connected to the electrode 5b that is a predetermined distance or more.
  • FIG. 6 is a cross-sectional view of connector 100a according to Embodiment 2 of the present invention.
  • a connector 100a shown in FIG. 6 has a wiring 2 and a wiring 3 arranged in a resin mold 1, respectively, and one electrode 4a of a capacitor 4 is electrically connected to the wiring 2, and one electrode 5a of a capacitor 5 is electrically connected to the wiring 3. Connected to. And the coil part 2a is formed by arrange
  • the connector 100a also constitutes a connector that connects to another connector and relays the electric wire.
  • the wiring 8a is electrically connected to the other electrode 4b of the capacitor 4, and the wiring 8b is electrically connected to the other electrode 5b of the capacitor 5, respectively.
  • the wirings 8a and 8b are wirings connected to the ground electrode GND, and their positions are fixed by a resin 8c that is an insulating material so that the distance between the wirings is not less than a predetermined distance.
  • the wirings 8a and 8b have a shape like a feeder line, for example. Therefore, the connector 100a can keep the distance between the wiring 8a and the wiring 8b constant, and can secure a distance of 5 mm or more between the wiring 8a and the wiring 8b to keep magnetic coupling low.
  • the wirings 8a and 8b are covered wires, and a single wire or a stranded copper wire portion that is not covered is electrically connected to the electrodes 4b and 5b, respectively.
  • the covering material for the wirings 8a and 8b and the resin 8c for fixing the positions of the wirings 8a and 8b may be the same material or different materials as long as they are insulating materials.
  • the wiring 8a (corresponding to the second wiring) and the wiring 8b (corresponding to the fourth wiring) have a predetermined distance between the wirings 8a and 8b. Since the resin 8c (corresponding to an insulating material) is fixed at a position that is longer than the distance, the magnetic coupling between the wiring 8a and the wiring 8b can be kept low, and the noise suppression effect in the high frequency band can be improved. .
  • the wirings 8a and 8b are not limited to the configuration in which the distance between the wirings is fixed by the resin 8c at a position where the distance between the wirings is a predetermined distance or more, and the positions where the distance between the wirings is a predetermined distance or more. As long as it is fixed to, it may be fixed by any means.
  • FIG. 7 is a plan view of connectors 100b and 100c according to Embodiment 3 of the present invention.
  • the wiring 2 and the wiring 3 are arranged in the resin mold 1, and one electrode 4a of the capacitor 4 is arranged on the wiring 2, and one electrode 5a of the capacitor 5 is arranged on the wiring 3. Each is electrically connected.
  • the coil part 2a is formed by arrange
  • the coil part 3a is formed by arrange
  • symbol is attached
  • the connector 100b also constitutes a connector that is connected to another connector and relays the electric wire.
  • the filter part 40b is different from the filter part 40 shown in FIG. 1, and the side of the filter part 40b where the electrode 5b of the capacitor 5 is formed is the side where the electrode 4b of the capacitor 4 is formed in the filter part 30. They are placed on the same side. That is, in the connector 100b, the side where the electrode 4b of the capacitor 4 is formed in the filter unit 30 and the side where the electrode 5b of the capacitor 5 is formed in the filter unit 40b are arranged on the same surface side of the connector 100b. Therefore, the connector 100b has a structure in which the metal terminal 6 connected to the electrode 4a and the metal terminal 7 connected to the electrode 5a can be pulled out from the same surface side and can be connected to the ground electrode GND from only one side. Be advantageous in case.
  • the connector 100b is arranged so that the straight line connecting the electrode 4b and the electrode 5b is at a position other than orthogonal ( ⁇ ⁇ 90 °) with respect to the longitudinal direction of the wirings 2 and 3. That is, the capacitor 4 and the capacitor 5 are not arranged on a straight line orthogonal to the longitudinal direction of the wirings 2 and 3. This is a configuration for avoiding the distance between the metal terminals 6 and 7 being shorter than a predetermined distance by arranging the electrode 4b and the electrode 5b on the same surface side of the connector 100b.
  • the electrodes 4b and 5b are connected to each other by shifting the positions of the electrode 4b of the filter unit 30 and the electrode 5b of the filter unit 40b in the left-right direction in the drawing. Even if they are arranged on the same surface side, the distance between the metal terminals 6 and 7 can be increased, and a length longer than a predetermined distance can be ensured.
  • the straight line connecting the electrode 4b and the electrode 5b is located at a position other than perpendicular to the longitudinal direction of the wiring 2 and the wiring 3.
  • the filter part 40c is different from the filter part 40 shown in FIG. 1, and the straight line connecting the electrode 4b and the electrode 5b is not orthogonal to the longitudinal direction of the wiring 2 and the wiring 3 ( ⁇ ⁇ 90 °). That is, the connector 100c is arranged by shifting the positions of the electrode 4b of the filter unit 30 and the electrode 5b of the filter unit 40c in the left-right direction in the drawing.
  • the connector 100c is a wiring between the metal terminal 6 and the metal terminal 7 as compared with the connector 100 shown in FIG. 1A by shifting the positions of the electrode 4b of the filter unit 30 and the electrode 5b of the filter unit 40c in the left-right direction. The distance between them can be increased.
  • the side (the upper side in the figure) where the electrode 4b of the capacitor 4 is formed in the filter unit 30 is the electrode 5b of the capacitor 5 in the filter unit 40b. It is the same side as the side to be formed (upper side in the figure) (see FIG. 7A). Therefore, the connector 100b can pull out the metal terminal 6 connected to the electrode 4a and the metal terminal 7 connected to the electrode 5a from the same surface side of the connector 100b.
  • the connectors 100b and 100c are arranged such that the straight line connecting the electrode 4b and the electrode 5b is located at a position other than perpendicular to the longitudinal direction of the wiring 2 and the wiring 3, so that the distance between the metal terminals 6 and 7 is increased. Can be made longer.
  • FIG. 8 is a plan view of a connector 100d according to Embodiment 4 of the present invention.
  • a connector 100d shown in FIG. 8 has a wiring 2 and a wiring 3 arranged in a resin mold 1, respectively, and one electrode 4a of the capacitor 4 is electrically connected to the wiring 2, and one electrode 5a of the capacitor 5 is electrically connected to the wiring 3. Connected to. And while arrange
  • the connector 100d also constitutes a connector that is connected to another connector and relays the electric wire.
  • each of the wires 2 and 3 is twisted in at least a part of the wires 2 and 3 constituting the coil portions 2b and 3b.
  • the coupling coefficient K1 (see FIG. 3A) can be increased as compared with the coil portion in which 2 and 3 are not twisted. Therefore, the connector 100d can increase the negative inductance for canceling the parasitic inductance, and can lengthen the wiring (metal terminals 6, 7 and the like) connected to the ground electrode GND.
  • the configuration of the coil portion may be formed by arranging lead wires without a covering material in a loop shape in addition to being formed by arranging the covered wire in a loop shape.
  • the configuration of the coil portion may be a circuit board in which a wiring pattern is formed in a loop shape, instead of arranging the covered wires in a loop shape.
  • FIG. 9 is a plan view and a side view of a connector 100e according to Embodiment 5 of the present invention.
  • FIG. 9A is a plan view of the connector 100e
  • FIG. 9B is a side view of the connector 100e.
  • symbol is attached
  • the connector 100e also constitutes a connector that connects to another connector and relays the electric wire.
  • the wiring 2 and the wiring 3 are arranged in the resin mold 1, respectively, and one electrode 4a of the capacitor 4 is electrically connected to the wiring 2, and one electrode 5a of the capacitor 5 is electrically connected to the wiring 3. Connected to. Although not shown, the wiring 2 and one electrode 4a of the capacitor 4 and the wiring 3 and one electrode 5a of the capacitor 5 are connected by a conductive adhesive or solder.
  • the wiring 2 is wound around the support body 70 to be arranged in a loop shape to form a coil portion 2e.
  • the wiring 3 is wound around the support body 70 and arranged in a loop to form a coil portion 3e.
  • the support 70 is made of resin, and has a groove 71 formed on the surface as shown in FIG. 9B for winding the wiring in a loop.
  • the support body 70 is formed with resin, any material may be used as long as it has insulation.
  • the support body 70 is fixed at a position where the coil portion is formed in the resin mold 1.
  • the support body 70 may be molded integrally with the resin mold 1 or may be formed as a separate body and fixed to the resin mold 1.
  • the connector 100e is provided with the support body 70 in the resin mold 1, so that the coil part 2e and the coil part 3e can be easily aligned, and the workability during manufacturing is improved. Furthermore, since the groove 71 is formed in advance on the surface of the support 70, the coil portions 2 e and 3 e can be formed by attaching the wirings 2 and 3 to the groove 71. Therefore, the coil portions 2e and 3e can be fixed so that the distance between the wirings 2 and 3 wound in a loop is constant, the inductance value is stable without variation, and more accurate filter circuits 30e and 40e are provided. Can be configured.
  • the groove 71 formed on the surface of the support 70 is deep enough to embed half of the wirings 2 and 3 as shown in FIG. 9B.
  • the depth of the groove 71 is not limited to this, and all the wirings 2 and 3 are embedded even if the depth is such that a part of the wirings 2 and 3 can be embedded if the wirings can be arranged. It may be as deep as possible.
  • the connector 100e further includes the support body 70 in which the groove 71 for winding at least a part of each of the wires 2 and 3 in a loop shape is formed. Therefore, the connector 100e facilitates the positioning of the coil portions 2e and 3e, improves the workability at the time of manufacture, and can be fixed so that the distance between the wirings 2 and 3 is constant, thereby providing a more accurate filter circuit. 30e, 40e can be configured.
  • FIG. 10 is a plan view and a side view of a connector 100f according to the sixth embodiment of the present invention.
  • FIG. 10A is a plan view of the connector 100f
  • FIG. 10B is a side view of the connector 100f.
  • the same components as those in the connector 100 shown in FIG. The connector 100f also constitutes a connector that is connected to another connector and relays the electric wire.
  • the connector 100f shown in FIG. 10 has the wiring 2 and the wiring 3 disposed in the resin mold 1, and electrically connects one electrode 4a of the capacitor 4 to the wiring 2 via the connection plate 85.
  • one electrode 5 a of the capacitor 5 is electrically connected via a connection plate 85.
  • the connection plate 85 is formed of a metal plate, but may be any material as long as it has electrical conductivity.
  • the wiring 2 is wound around one end of the support body 80 to be arranged in a loop to form a coil portion 2f.
  • the wiring 3 is wound around the other end of the support body 80 so as to be arranged in a loop to form a coil portion 3f.
  • the support 80 is made of resin, and the shape viewed from the side is a T-shape as shown in FIG.
  • the support body 80 is made of a resin, but may be any material as long as it has an insulating property.
  • a groove 81 for winding the wiring 2 in a loop shape is formed at one end of the T shape
  • a groove 81 for winding the wiring 3 in a loop shape is formed at the other end of the T shape.
  • the coil part 2 f and the coil part 3 f are formed at one end and the other end of one support 80.
  • the support body 80 fixes with the support body 80 in the resin mold 1 so that the surface where the coil part 2f is arrange
  • the coil part 2f and the coil part 3f are formed on the integrated support body 80, and if the surface on which the coil part 2f is disposed and the surface on which the coil part 3f is disposed can be disposed at opposite positions,
  • the support body that forms the coil portion 2f and the support body that forms the coil portion 3f may be separate.
  • the support 80 may be formed integrally with the resin mold 1 or may be formed as a separate body and fixed to the resin mold 1.
  • the positional relationship between the coil portion 2f and the coil portion 3f is preferably a position where the surface on which the coil portion 2f is disposed and the surface on which the coil portion 3f is completely opposed as shown in FIG. 10 (b).
  • the positional relationship between the coil portion 2f and the coil portion 3f may be a position where the surface on which the coil portion 2f is disposed and the surface on which the coil portion 3f is disposed partially face each other.
  • the surface on which the coil portion 2f of the filter portion 30f is disposed is at a position facing the surface on which the coil portion 3f of the filter portion 40f is disposed. . Therefore, the connector 100f can be reduced in size by effectively using the space in the coil winding direction as compared with the case where the coil portion 2f and the coil portion 3f are formed so as to be positioned on the same plane. In particular, when the coil diameters of the coil part 2f and the coil part 3f are increased, if the coil part 2f and the coil part 3f are formed so as to be positioned on the same plane, the size of the connector increases.
  • the surface on which the coil portion 2f of the filter portion 30f is disposed is formed at a position facing the surface on which the coil portion 3f of the filter portion 40f is disposed, thereby increasing the coil diameter.
  • it can be made relatively small.
  • the coil portions 2f and 3f are formed by winding the wirings 2 and 3 around the support 80.
  • the surface on which the coil portion 2f is disposed is opposed to the surface on which the coil portion 3f is disposed.
  • the support 80 may be omitted. That is, a coil part is formed by arranging the wirings 2 and 3 in a loop shape, and the surface on which one coil part is disposed and the surface on which the other coil part is disposed are formed to face each other.
  • FIG. 11 is a schematic diagram of a filter circuit 200 according to Embodiment 7 of the present invention.
  • the filter circuit 200 the same components as those of the filter units 30 and 40 constituting the filter circuit in the connector 100 shown in FIG.
  • the filter circuit 200 may also be incorporated in a connector that connects to another connector and relays an electric wire.
  • the loop-shaped coil portion 2g is formed by winding the wiring 2 around one end of the support 90, and the loop-shaped coil portion 3g is wound by winding the wiring 3 around the other end of the support 90. Is forming.
  • a capacitor 45 with a lead wire is electrically connected to the wiring 2 forming the coil portion 2g.
  • one lead wire 45a of the capacitor 45 is electrically connected to the wiring 2 in the coil portion 2g.
  • condenser 55 with a lead wire is electrically connected to the wiring 3 which forms the coil part 3g.
  • one lead wire 55a of the capacitor 55 is electrically connected to the wiring 3 in the coil portion 3g.
  • the other lead wire 45b of the capacitor 45 and the other lead wire 55b of the capacitor 55 are each electrically connected to the ground electrode GND.
  • the support 90 is made of resin, and the shape viewed from the side is I-shaped as shown in FIG.
  • the support body 90 is formed with resin, any material may be used as long as it has insulation.
  • a groove 91 for winding the wiring 2 in a loop shape is formed at one end of the I shape
  • a groove 91 for winding the wiring 3 in a loop shape is formed at the other end of the I shape.
  • the coil part 2g and the coil part 3g are formed in the one end and the other end of the one support body 90.
  • the present invention is not limited to the case where the coil part 2g and the coil part 3g are formed on the integrated support body 90, and the support body 90 that forms the coil part 2g and the support body 90 that forms the coil part 3g are illustrated separately.
  • the coil part 2g and the coil part 3g may be formed so as to be located on the same plane.
  • the capacitors 45 and 55 with lead wires are electrically connected to the loop-shaped coil portions 2g and 3g, respectively. Therefore, as described in the first embodiment, the filter circuit 200 can reduce the common parasitic inductance, cancel the parasitic inductances of the capacitors 45 and 55 and the lead wires, and improve the noise suppression effect in the high frequency band. .
  • the coil portions 2g and 3g are formed by winding the wires 2 and 3 around the support 90. However, if the coil portions 2g and 3g are formed in the middle of the wires 2 and 3, the support body There is no need for 90. That is, the coil portions 2g and 3g may be formed by arranging the wirings 2 and 3 in a loop shape.
  • the coil portions 2a and 3a formed in the filter portions 30 and 40 shown in FIG. 1 are each one coil in which the wirings 2 and 3 are arranged in a loop shape
  • the present invention is limited to this.
  • a plurality of coils may be provided by providing a plurality of coils each having wiring arranged in a loop.
  • the coil portions 2b and 3b formed in the filter portions 30d and 40d shown in FIG. 8 may also constitute a plurality of coil portions.
  • the connector 100 shown in FIG. 1 is configured to cover the coil portions 2a and 3a and the capacitors 4 and 5 with the resin mold 1
  • the present invention is not limited to this.
  • the connector 100 may have a configuration in which the coil portions 2a and 3a and the capacitors 4 and 5 are arranged on the substrate without being covered with a resin mold.
  • the connector 100a shown in FIG. 6, the connectors 100b and 100c shown in FIG. 7, and the connector 100d shown in FIG. 8 may have a configuration in which a coil portion and a capacitor are simply arranged on a substrate without being covered with a resin mold.
  • capacitors 4 and 5 have been described as chip capacitors, multilayer ceramic capacitors mainly composed of BaTiO3 (barium titanate) or multilayer ceramic capacitors mainly composed of other materials may be used. Furthermore, the capacitors 4 and 5 are not limited to multilayer ceramic capacitors, and may be other types of capacitors such as aluminum electrolytic capacitors.
  • connectors 100, 100a to d are described as connectors that connect two wires and relay them. It can be similarly applied to a connector that connects and relays three or more wires.

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Abstract

The present invention is a filter circuit provided partway along two electric wires. A filter (30) is provided with a capacitor (4), wiring (2), and a metal terminal (6). A filter (40) is provided with a capacitor (5), wiring (3), and a metal terminal (7). Each of the wirings (2, 3) has at least one coil (2a, 3a). Each of the metal terminals (6, 7) is secured in a position at which the distance between the metal terminals (6, 7) is at least a predetermined distance, and is electrically connected to a ground electrode (GND).

Description

フィルタ回路およびコネクタFilter circuit and connector
　本発明は、フィルタ回路およびコネクタに関し、特に、キャパシタンス素子を備えるフィルタ回路およびコネクタに関する。 The present invention relates to a filter circuit and a connector, and more particularly to a filter circuit and a connector including a capacitance element.
　フィルタ回路に使用される電子部品として、例えば、特許文献１に示す３端子型コンデンサがある。この３端子型コンデンサは、キャパシタンス素子であって、チップコンデンサの一端側に導電板を接続し、チップコンデンサの他端側に脚部を接続している。さらに、３端子型コンデンサは、導電板に２つの配線（リード線）を接続するとともに、脚部に別の配線を接続している。 As an electronic component used in the filter circuit, for example, there is a three-terminal capacitor shown in Patent Document 1. The three-terminal capacitor is a capacitance element, and a conductive plate is connected to one end side of the chip capacitor, and a leg portion is connected to the other end side of the chip capacitor. Further, in the three-terminal capacitor, two wires (lead wires) are connected to the conductive plate, and another wire is connected to the leg portion.
　この３端子型コンデンサを電源のノイズ成分を除去するフィルタ回路に用いる場合を考える。具体的に、電源に接続する電線を切断して、切断した電線のそれぞれに３端子型コンデンサのリード線をそれぞれ接続し、別のリード線を接地電極に接続することでフィルタ回路を構成する。このように、電源に接続する電線の途中に３端子型コンデンサを接続することでフィルタ回路を構成することができる。 Suppose that this three-terminal capacitor is used in a filter circuit that removes noise components from the power supply. Specifically, the filter circuit is configured by cutting a wire connected to the power source, connecting a lead wire of a three-terminal capacitor to each of the cut wires, and connecting another lead wire to the ground electrode. Thus, a filter circuit can be configured by connecting a three-terminal capacitor in the middle of an electric wire connected to a power source.
特開２０１５－５３４４８号公報Japanese Patent Laying-Open No. 2015-53448
　しかし、単純に３端子型コンデンサを電線の途中に接続するだけでは、コンデンサの寄生インダクタンスである等価直列インダクタンス（ESL：Equivalent　Series　Inductance）によりノイズ抑制効果が低下することが知られている。 However, it is known that simply connecting a three-terminal capacitor in the middle of an electric wire reduces the noise suppression effect due to the equivalent series inductance (ESL) which is the parasitic inductance of the capacitor.
　また、電源に接続する電線が２本の場合、各々の電線に３端子型コンデンサを接続する必要がある。各々の電線に接続した３端子型コンデンサにおいて寄生インダクタンスをキャンセルするには、例えば配線の位置を調整するなどの専門的な知識が必要となる問題があった。 Also, when there are two wires connected to the power supply, it is necessary to connect a three-terminal capacitor to each wire. In order to cancel the parasitic inductance in the three-terminal capacitor connected to each electric wire, there has been a problem that requires specialized knowledge such as adjusting the position of the wiring.
　そこで、本発明の目的は、専門的な知識が無くても、キャパシタンス素子および配線の寄生インダクタンスを打ち消することが可能で、２本の電線の途中に設けられるフィルタ回路および電線を中継するコネクタを提供する。 Accordingly, an object of the present invention is to provide a filter circuit provided in the middle of two electric wires and a connector for relaying the electric wires, which can cancel the parasitic inductance of the capacitance element and the wiring without specialized knowledge. provide.
　本発明の一形態に係るフィルタ回路は、２本の電線の途中に設けられるフィルタ回路であって、２本の電線のうちの第１電線の途中に設けられる第１フィルタ部と、２本の電線のうちの第２電線の途中に設けられる第２フィルタ部とを備え、第１フィルタ部は、第１キャパシタンス素子と、両端の各々が第１電線に電気的に接続されると共に、第１キャパシタンス素子に形成された第１電極に電気的に接続された第１配線と、第１キャパシタンス素子に形成された第２電極に電気的に接続された第２配線とを備え、第２フィルタ部は、第２キャパシタンス素子と、両端の各々が第２電線に電気的に接続されると共に、第２キャパシタンス素子に形成された第３電極に電気的に接続された第３配線と、第２キャパシタンス素子に形成された第４電極に電気的に接続された第４配線とを備え、第１配線および第３配線の各々は、少なくとも１つのコイル部を有し、第２配線および第４配線は、第２配線と第４配線との距離が予め定められた距離以上となる位置で各々固定され、接地電極に電気的に接続される。 The filter circuit which concerns on one form of this invention is a filter circuit provided in the middle of two electric wires, Comprising: The 1st filter part provided in the middle of the 1st electric wire of two electric wires, and two A second filter portion provided in the middle of the second electric wire of the electric wires, the first filter portion being electrically connected to the first electric wire at each of the first capacitance element and the first electric wire. A first filter electrically connected to the first electrode formed on the capacitance element; and a second wire electrically connected to the second electrode formed on the first capacitance element, the second filter unit Includes a second capacitance element, a third wiring electrically connected to the second electric wire at both ends, and a third wiring electrically connected to a third electrode formed on the second capacitance element, and a second capacitance. The first formed on the element 4th wiring electrically connected to the electrode, each of the 1st wiring and 3rd wiring has at least 1 coil part, and 2nd wiring and 4th wiring are 2nd wiring and 4th. Each is fixed at a position where the distance to the wiring is a predetermined distance or more, and is electrically connected to the ground electrode.
　本発明の一形態に係るフィルタ回路は、電線を中継するコネクタであって、２本の電線と電気的に接続するための第１接続部と、第１接続部と異なる側の２本の電線と電気的に接続するための第２接続部と、２本の電線のうちの第１電線と電気的に接続される第１フィルタ部と、２本の電線のうちの第２電線と電気的に接続される第２フィルタ部とを備え、第１フィルタ部は、第１キャパシタンス素子と、両端の各々が第１電線に電気的に接続されると共に、第１キャパシタンス素子に形成された第１電極に電気的に接続された第１配線と、第１キャパシタンス素子に形成された第２電極に電気的に接続された第２配線とを備え、第２フィルタ部は、第２キャパシタンス素子と、両端の各々が第２電線に電気的に接続されると共に、第２キャパシタンス素子に形成された第３電極に電気的に接続された第３配線と、第２キャパシタンス素子に形成された第４電極に電気的に接続された第４配線とを備え、第１配線および第３配線の各々は、少なくとも１つのコイル部を有し、第２配線および第４配線は、第２配線と第４配線との距離が予め定められた距離以上となる位置で各々固定され、接地電極に電気的に接続される。 The filter circuit which concerns on one form of this invention is a connector which relays an electric wire, Comprising: The 1st connection part for electrically connecting with two electric wires, Two electric wires on the side different from a 1st connection part A second connection portion for electrical connection with the first filter portion electrically connected to the first electric wire of the two electric wires, and the second electric wire of the two electric wires and the electric connection A first filter element connected to the first capacitance element, the first filter element being electrically connected to the first electric wire at both ends, and a first capacitance element formed on the first capacitance element. A first wiring electrically connected to the electrode, and a second wiring electrically connected to the second electrode formed in the first capacitance element, the second filter unit, the second capacitance element, Each of both ends is electrically connected to the second electric wire, and the second key A third wiring electrically connected to the third electrode formed in the capacitance element; and a fourth wiring electrically connected to the fourth electrode formed in the second capacitance element; Each of the third wirings has at least one coil portion, and the second wiring and the fourth wiring are each fixed at a position where the distance between the second wiring and the fourth wiring is not less than a predetermined distance. It is electrically connected to the ground electrode.
　本発明によれば、第１配線および第３配線の各々が少なくとも１つのコイル部を有し、第２配線および第４配線は、第２配線と第４配線との距離が予め定められた距離以上となる位置で各々固定され、接地電極に電気的に接続されるので、専門的な知識が無くても寄生インダクタンスを打ち消し、第２配線および第４配線の間の磁気結合を低く抑えることができ、高周波帯のノイズ抑制効果を向上させることができる。 According to the present invention, each of the first wiring and the third wiring has at least one coil portion, and the second wiring and the fourth wiring have a predetermined distance between the second wiring and the fourth wiring. Each is fixed at the above position and electrically connected to the ground electrode, so that parasitic inductance can be canceled out without specialized knowledge, and magnetic coupling between the second wiring and the fourth wiring can be kept low. It is possible to improve the noise suppression effect in the high frequency band.
本発明の実施の形態１に係るコネクタの平面図および断面図である。It is the top view and sectional drawing of the connector which concern on Embodiment 1 of this invention. 本発明の実施の形態１に係るコネクタを他のコネクタと接続して電線を中継する構成を説明するための図である。It is a figure for demonstrating the structure which connects the connector which concerns on Embodiment 1 of this invention with another connector, and relays an electric wire. 本発明の実施の形態１に係るリード線付き電子部品の等価回路を示す回路図である。It is a circuit diagram which shows the equivalent circuit of the electronic component with a lead wire which concerns on Embodiment 1 of this invention. 結合係数Ｋ２と金属端子間の距離との関係を説明するためのグラフである。It is a graph for demonstrating the relationship between the coupling coefficient K2 and the distance between metal terminals. 図３に示す等価回路の周波数に対する伝送特性を示すグラフである。It is a graph which shows the transmission characteristic with respect to the frequency of the equivalent circuit shown in FIG. 本発明の実施の形態２に係るコネクタの断面図である。It is sectional drawing of the connector which concerns on Embodiment 2 of this invention. 本発明の実施の形態３に係るコネクタの平面図である。It is a top view of the connector which concerns on Embodiment 3 of this invention. 本発明の実施の形態４に係るコネクタの平面図である。It is a top view of the connector which concerns on Embodiment 4 of this invention. 本発明の実施の形態５に係るコネクタの平面図および側面図である。It is the top view and side view of a connector which concern on Embodiment 5 of this invention. 本発明の実施の形態６に係るコネクタの平面図および側面図である。It is the top view and side view of a connector which concern on Embodiment 6 of this invention. 本発明の実施の形態７に係るフィルタ回路の概略図である。It is the schematic of the filter circuit which concerns on Embodiment 7 of this invention.
　以下に、本発明の実施の形態に係るフィルタ回路について説明する。フィルタ回路は、電線の途中に設けられ、電源のノイズ成分を除去する。なお、以下に説明するフィルタ回路は、電線を中継するコネクタとして形成されているとして説明する。しかし、本発明はこれに限定されず、コネクタとしての形状を有しておらず、単に回路基板に形成されたフィルタ回路を直接、電線の途中に接続してもよい。 Hereinafter, the filter circuit according to the embodiment of the present invention will be described. The filter circuit is provided in the middle of the electric wire and removes a noise component of the power source. Note that the filter circuit described below is described as being formed as a connector that relays electric wires. However, the present invention is not limited to this, and does not have a shape as a connector, and a filter circuit formed on a circuit board may be simply connected directly in the middle of an electric wire.
　（実施の形態１）
　以下に、本発明の実施の形態１に係るコネクタについて図面を参照しながら説明する。図１は、本発明の実施の形態１に係るコネクタ１００の平面図および断面図である。図１（ａ）がコネクタ１００の平面図および図１（ｂ）がコネクタ１００の断面図をそれぞれ示している。図２は、本発明の実施の形態１に係るコネクタ１００を他のコネクタと接続して電線を中継する構成を説明するための図である。 (Embodiment 1)
The connector according to Embodiment 1 of the present invention will be described below with reference to the drawings. 1A and 1B are a plan view and a cross-sectional view of a connector 100 according to Embodiment 1 of the present invention. 1A is a plan view of the connector 100, and FIG. 1B is a cross-sectional view of the connector 100. FIG. 2 is a diagram for explaining a configuration in which the connector 100 according to Embodiment 1 of the present invention is connected to another connector to relay an electric wire.
　コネクタ１００は、樹脂モールド１内に配線２および配線３をそれぞれ配置して、配線２にコンデンサ４の一方の電極４ａを、配線３にコンデンサ５の一方の電極５ａをそれぞれ電気的に接続している。さらに、コンデンサ４の他方の電極４ｂには金属端子６を、コンデンサ５の他方の電極５ｂには金属端子７をそれぞれ電気的に接続している。 In the connector 100, the wiring 2 and the wiring 3 are disposed in the resin mold 1, and one electrode 4 a of the capacitor 4 is electrically connected to the wiring 2, and one electrode 5 a of the capacitor 5 is electrically connected to the wiring 3. Yes. Further, the metal terminal 6 is electrically connected to the other electrode 4 b of the capacitor 4, and the metal terminal 7 is electrically connected to the other electrode 5 b of the capacitor 5.
　コネクタ１００の図中右側の部分は、図２に示すコネクタ１０ａと接続する接続部１０である。当該接続部１０にコネクタ１０ａを差し込むことで、２本の電線の内の一方の電線５０ａが配線２に、他方の電線６０ａが配線３にそれぞれ電気的に接続される。また、コネクタ１００の図中左側の部分は、図２に示すコネクタ２０ａと接続する接続部２０である。当該接続部２０にコネクタ２０ａを差し込むことで、２本の電線の内の一方の電線５０ｂが配線２に、他方の電線６０ｂが配線３にそれぞれ電気的に接続される。 The right part of the connector 100 in the figure is the connection part 10 connected to the connector 10a shown in FIG. By inserting the connector 10 a into the connection portion 10, one of the two electric wires 50 a is electrically connected to the wiring 2, and the other electric wire 60 a is electrically connected to the wiring 3. Further, the left part of the connector 100 in the figure is a connecting portion 20 that is connected to the connector 20a shown in FIG. By inserting the connector 20 a into the connecting portion 20, one of the two electric wires 50 b is electrically connected to the wiring 2 and the other electric wire 60 b is electrically connected to the wiring 3.
　コネクタ１００は、接続部１０にコネクタ１０ａを、接続部２０にコネクタ２０ａをそれぞれ差込むことで、配線２を介して電線５０ａと電線５０ｂとを、配線３を介して電線６０ａと電線６０ｂとをそれぞれ電気的に接続することができる。つまり、コネクタ１００は、コネクタ１０ａとコネクタ２０ａとを繋ぐ中継コネクタであり、フィルタ回路を内蔵したコネクタである。なお、２本の電線をそれぞれ切断（電線５０ａと電線５０ｂ、電線６０ａと電線６０ｂ）して、２本の電線の途中にコネクタ１００に内蔵するフィルタ回路を設けたと考えることもできる。 The connector 100 inserts the connector 10a into the connecting portion 10 and the connector 20a into the connecting portion 20 to connect the electric wire 50a and the electric wire 50b via the wiring 2, and the electric wire 60a and the electric wire 60b via the wiring 3, respectively. Each can be electrically connected. That is, the connector 100 is a relay connector that connects the connector 10a and the connector 20a, and is a connector that incorporates a filter circuit. In addition, it can be considered that the two electric wires are cut (the electric wires 50a and 50b, the electric wires 60a and the electric wires 60b), and a filter circuit built in the connector 100 is provided in the middle of the two electric wires.
　コネクタ１００は、接続部１０と接続部２０との間にフィルタ部３０，４０を設けている。なお、フィルタ部３０，４０がフィルタ回路を構成している。フィルタ部３０には、配線２をループ状に配置することでコイル部２ａを形成し、当該コイル部２ａを形成している配線２にコンデンサ４の一方の電極４ａを、金属端子６にコンデンサ４の一方の電極４ｂをそれぞれ接続している。フィルタ部３０は、詳しくは後述するが配線２で形成したコイル部２ａのインダクタンスにより、コンデンサ４の寄生インダクタンスを打ち消している。同様に、フィルタ部４０には、配線３をループ状に配置することでコイル部３ａを形成し、当該コイル部３ａを形成している配線３にコンデンサ５の一方の電極５ａを、金属端子７にコンデンサ５の一方の電極５ｂをそれぞれ接続している。フィルタ部４０は、配線３で形成したコイル部３ａのインダクタンスにより、コンデンサ５の寄生インダクタンスを打ち消している。つまり、コネクタ１００では、専門的な知識が無くても寄生インダクタンスを打ち消すコイル部２ａ，３ａが配線２，３により形成されているので、高周波帯のノイズ抑制効果を向上させることができる。 The connector 100 includes filter units 30 and 40 between the connection unit 10 and the connection unit 20. The filter units 30 and 40 constitute a filter circuit. In the filter portion 30, the coil portion 2 a is formed by arranging the wires 2 in a loop shape, one electrode 4 a of the capacitor 4 is formed on the wire 2 forming the coil portion 2 a, and the capacitor 4 is formed on the metal terminal 6. One electrode 4b of each is connected. As will be described in detail later, the filter unit 30 cancels the parasitic inductance of the capacitor 4 by the inductance of the coil unit 2 a formed by the wiring 2. Similarly, the coil part 3a is formed in the filter part 40 by arranging the wiring 3 in a loop shape, and one electrode 5a of the capacitor 5 is connected to the metal terminal 7 on the wiring 3 forming the coil part 3a. One electrode 5b of the capacitor 5 is connected to each of the two. The filter unit 40 cancels the parasitic inductance of the capacitor 5 by the inductance of the coil unit 3 a formed by the wiring 3. That is, in the connector 100, since the coil portions 2a and 3a that cancel the parasitic inductance are formed by the wirings 2 and 3 without specialized knowledge, the noise suppression effect in the high frequency band can be improved.
　配線２，３は、被覆線であり、例えば単線またはより線の銅線にポリ塩化ビニルやポリエチレンなどの被覆を施して絶縁した電線である。これにより、配線２，３は、絶縁コートされていないリード線のように別途、絶縁処理が不要なり、より大きな電流を流すことも可能になる。もちろん、配線２，３は、被覆を施していない単線またはより線の銅線などであってもよい。 Wirings 2 and 3 are covered wires, for example, electric wires that are insulated by applying a coating of polyvinyl chloride, polyethylene, or the like to a single or stranded copper wire. As a result, the wirings 2 and 3 do not need to be separately insulated like lead wires that are not coated with an insulation coating, and a larger current can be passed. Of course, the wirings 2 and 3 may be single wires or stranded copper wires which are not covered.
　コンデンサ４，５は、キャパシタンス素子で、例えば３．２ｍｍ×２．５ｍｍ×２．５ｍｍのチップコンデンサである。当該コンデンサ４，５は、一対の電極のうち一方の電極４ａ，５ａに被覆していない配線２，３の部分をハンダで接続している。また、当該コンデンサ４，５は、一対の電極のうち一方の電極４ｂ，５ｂに金属板で形成される金属端子６，７をハンダで接続している。金属端子６，７は、図１（ａ）の裏側（図１（ｂ）の左側）の方向に延び、断面の形状がＬ字形状をしている。また、金属端子６，７は、金属板で形成されているので端子間の距離を一定に保つことができ、予め定められた距離以上の端子間の距離を確保した位置で各々固定することができる。なお、金属端子６，７は、金属板に限定されるものではなく、端子間の距離を一定に保つことができる形状であれば棒形状などであってもよい。 Capacitors 4 and 5 are capacitance elements, for example, chip capacitors of 3.2 mm × 2.5 mm × 2.5 mm. The capacitors 4 and 5 connect the portions of the wirings 2 and 3 that are not covered with one electrode 4a and 5a of the pair of electrodes by solder. In the capacitors 4 and 5, the metal terminals 6 and 7 formed of a metal plate are connected to one electrode 4b and 5b of the pair of electrodes by solder. The metal terminals 6 and 7 extend in the direction of the back side of FIG. 1A (left side of FIG. 1B), and the cross-sectional shape is L-shaped. Moreover, since the metal terminals 6 and 7 are formed of a metal plate, the distance between the terminals can be kept constant, and each of the terminals can be fixed at a position where a distance between the terminals equal to or greater than a predetermined distance is secured. it can. In addition, the metal terminals 6 and 7 are not limited to metal plates, and may have a rod shape as long as the distance between the terminals can be kept constant.
　次に、等価回路を用いてコネクタ１００を説明する。図３は、本発明の実施の形態１に係るコネクタ１００の等価回路を示す回路図である。図３（ａ）は、磁気結合を考慮したインダクタを用いたコネクタ１００の等価回路で、図３（ｂ）は、磁気結合を考慮しないインダクタを用いたコネクタ１００の等価回路である。 Next, the connector 100 will be described using an equivalent circuit. FIG. 3 is a circuit diagram showing an equivalent circuit of connector 100 according to Embodiment 1 of the present invention. FIG. 3A is an equivalent circuit of the connector 100 using an inductor considering magnetic coupling, and FIG. 3B is an equivalent circuit of the connector 100 using an inductor not considering magnetic coupling.
　まず、図３（ａ）に示すように、コンデンサ４の電極４ａと配線２のコイル部２ａとを接続した場合、コイル部２ａは、電極４ａでインダクタＬ１とインダクタＬ２とを直列に接続した等価回路と見なすことができる。コンデンサ４の電極４ｂが金属端子６を介して接地電極ＧＮＤに電気的に接続されている場合、コンデンサ４は、キャパシタＣ４と寄生インダクタンス（等価直列インダクタンス（ESL））のインダクタＬ３とを直列に接続した等価回路と見なすことができる。 First, as shown in FIG. 3A, when the electrode 4a of the capacitor 4 and the coil part 2a of the wiring 2 are connected, the coil part 2a is equivalent to the inductor L1 and the inductor L2 connected in series by the electrode 4a. It can be regarded as a circuit. When the electrode 4b of the capacitor 4 is electrically connected to the ground electrode GND through the metal terminal 6, the capacitor 4 connects the capacitor C4 and the inductor L3 having a parasitic inductance (equivalent series inductance (ESL)) in series. Can be regarded as an equivalent circuit.
　同様に、コンデンサ５の電極５ａと配線３のコイル部３ａとを接続した場合、コイル部３ａは、電極５ａでインダクタＬ４とインダクタＬ５とを直列に接続した等価回路と見なすことができる。コンデンサ５の電極５ｂが金属端子７を介して接地電極ＧＮＤに電気的に接続されている場合、コンデンサ５は、キャパシタＣ５と寄生インダクタンスのインダクタＬ６とを直列に接続した等価回路と見なすことができる。 Similarly, when the electrode 5a of the capacitor 5 and the coil part 3a of the wiring 3 are connected, the coil part 3a can be regarded as an equivalent circuit in which the inductor L4 and the inductor L5 are connected in series by the electrode 5a. When the electrode 5b of the capacitor 5 is electrically connected to the ground electrode GND via the metal terminal 7, the capacitor 5 can be regarded as an equivalent circuit in which a capacitor C5 and a parasitic inductance inductor L6 are connected in series. .
　図３（ａ）に示す等価回路では、インダクタＬ１とインダクタＬ２とは密結合しており、擬似的に負のインダクタンス成分が生じる。この負のインダクタンス成分は、コンデンサ４および金属端子６の寄生インダクタンス（インダクタＬ３）を打ち消すことができ、コンデンサ４および金属端子６のインダクタンス成分を見かけ上小さくすることができる。インダクタＬ１とインダクタＬ２との負のインダクタンス成分で寄生インダクタンス（インダクタＬ３）を打ち消すことにより、自己共振周波数が上がり高周波帯のノイズ抑制効果を向上させることができる。つまり、フィルタ部３０は、配線２にコイル部２ａを設けることで、コンデンサ４および金属端子６の寄生インダクタンス（インダクタＬ３）を打ち消して広帯域化を実現することができ、高周波帯のノイズ抑制効果を向上させることができる。ここで、インダクタＬ１とインダクタＬ２との結合係数をＫ１とする。 In the equivalent circuit shown in FIG. 3A, the inductor L1 and the inductor L2 are tightly coupled, and a pseudo negative inductance component is generated. This negative inductance component can cancel the parasitic inductance (inductor L3) of the capacitor 4 and the metal terminal 6, and the inductance component of the capacitor 4 and the metal terminal 6 can be apparently reduced. By canceling the parasitic inductance (inductor L3) with the negative inductance component of the inductor L1 and the inductor L2, the self-resonance frequency is increased and the noise suppression effect in the high frequency band can be improved. That is, by providing the coil portion 2a in the wiring 2, the filter portion 30 can cancel the parasitic inductance (inductor L3) of the capacitor 4 and the metal terminal 6 to realize a wide band, and can suppress noise in the high frequency band. Can be improved. Here, the coupling coefficient between the inductor L1 and the inductor L2 is K1.
　同様に、インダクタＬ４とインダクタＬ５とは密結合しており、擬似的に負のインダクタンス成分が生じる。この負のインダクタンス成分は、コンデンサ５および金属端子７の寄生インダクタンス（インダクタＬ６）を打ち消すことができ、コンデンサ５および金属端子７のインダクタンス成分を見かけ上小さくすることができる。インダクタＬ４とインダクタＬ５との負のインダクタンス成分で寄生インダクタンス（インダクタＬ６）を打ち消すことにより、自己共振周波数が上がり高周波帯のノイズ抑制効果を向上させることができる。つまり、フィルタ部４０は、配線３にコイル部３ａを設けることで、コンデンサ５および金属端子７の寄生インダクタンス（インダクタＬ３）を打ち消して広帯域化を実現することができ、高周波帯のノイズ抑制効果を向上させることができる。ここで、インダクタＬ４とインダクタＬ５との結合係数をＫ１とする。 Similarly, the inductor L4 and the inductor L5 are tightly coupled, and a pseudo negative inductance component is generated. This negative inductance component can cancel the parasitic inductance (inductor L6) of the capacitor 5 and the metal terminal 7, and the inductance component of the capacitor 5 and the metal terminal 7 can be apparently reduced. By canceling the parasitic inductance (inductor L6) with the negative inductance components of the inductor L4 and the inductor L5, the self-resonance frequency is increased and the noise suppression effect in the high frequency band can be improved. That is, the filter unit 40 can provide a wide band by canceling the parasitic inductance (inductor L3) of the capacitor 5 and the metal terminal 7 by providing the coil unit 3a in the wiring 3, and the noise suppression effect in the high frequency band can be achieved. Can be improved. Here, the coupling coefficient between the inductor L4 and the inductor L5 is K1.
　例えば、コンデンサ４は、キャパシタＣ４を１．０μＦ、インダクタＬ３を１ｎＨとする。また、インダクタＬ１，Ｌ２は、２ｎＨとそれぞれする。さらに、インダクタＬ１とインダクタＬ２との結合係数Ｋ１は、０．５（５０％）とする。この場合、フィルタ部３０は、インダクタＬ３の１ｎＨの寄生インダクタンスを、２ｎＨのインダクタＬ１，Ｌ２を５０％で結合したことで生じる負のインダクタンス成分（－１ｎＨ）で打ち消すことが可能である。同様に、フィルタ部４０は、インダクタＬ６の１ｎＨの寄生インダクタンスを、２ｎＨのインダクタＬ４，Ｌ５を５０％で結合したことで生じる負のインダクタンス成分（－１ｎＨ）で打ち消すことが可能である。 For example, the capacitor 4 has a capacitor C4 of 1.0 μF and an inductor L3 of 1 nH. The inductors L1 and L2 are 2nH, respectively. Furthermore, the coupling coefficient K1 between the inductor L1 and the inductor L2 is 0.5 (50%). In this case, the filter unit 30 can cancel the parasitic inductance of 1 nH of the inductor L3 with a negative inductance component (−1 nH) generated by coupling the inductors L1 and L2 of 2 nH at 50%. Similarly, the filter unit 40 can cancel the parasitic inductance of 1 nH of the inductor L6 with a negative inductance component (−1 nH) generated by coupling the inductors L4 and L5 of 2 nH at 50%.
　しかし、コネクタ１００は、フィルタ部３０の金属端子６とフィルタ部４０の金属端子７とを同じ接地電極ＧＮＤに接続するため、金属端子６と金属端子７との間で磁気結合の影響を考慮しなければならない。つまり、インダクタＬ３とインダクタＬ６とが結合係数Ｋ２で磁気結合していることを考慮する必要がある。そこで、コネクタ１００の等価回路を、磁気結合がないインダクタに置換えた図３（ｂ）に示す等価回路に基づいて考える。 However, since the connector 100 connects the metal terminal 6 of the filter unit 30 and the metal terminal 7 of the filter unit 40 to the same ground electrode GND, the influence of magnetic coupling between the metal terminal 6 and the metal terminal 7 is considered. There must be. That is, it is necessary to consider that the inductor L3 and the inductor L6 are magnetically coupled with the coupling coefficient K2. Therefore, the equivalent circuit of the connector 100 is considered based on the equivalent circuit shown in FIG. 3B in which an inductor having no magnetic coupling is replaced.
　具体的に、図３（ａ）に示すインダクタＬ１、インダクタＬ２、インダクタＬ４およびインダクタＬ５は、インダクタンスの大きさをＬとし、インダクタＬ３およびインダクタＬ６は、インダクタンスの大きさをＬｇとする。そうすると、図３（ａ）に示すインダクタＬ１およびインダクタＬ２は、図３（ｂ）に示すようにインダクタンスの大きさが（Ｌ＋Ｋ１×Ｌ）、（Ｌ＋Ｋ１×Ｌ）、（－Ｋ１×Ｌ）の３つのインダクタに置き換えることができる。同様に、図３（ａ）に示すインダクタＬ４およびインダクタＬ５は、図３（ｂ）に示すようにインダクタンスの大きさが（Ｌ＋Ｋ１×Ｌ）、（Ｌ＋Ｋ１×Ｌ）、（－Ｋ１×Ｌ）の３つのインダクタに、図３（ａ）に示すインダクタＬ３およびインダクタＬ６は、図３（ｂ）に示すようにインダクタンスの大きさが（Ｌｇ－Ｋ２×Ｌｇ）、（Ｌｇ－Ｋ２×Ｌｇ）、（Ｋ２×Ｌｇ）の３つのインダクタにそれぞれ置き換えることができる。 Specifically, the inductor L1, the inductor L2, the inductor L4, and the inductor L5 shown in FIG. 3A have an inductance size L, and the inductor L3 and the inductor L6 have an inductance size Lg. Then, as shown in FIG. 3B, the inductors L1 and L2 shown in FIG. 3A have inductances of 3 (L + K1 × L), (L + K1 × L), and (−K1 × L). Can be replaced with two inductors. Similarly, the inductors L4 and L5 shown in FIG. 3 (a) have inductances of (L + K1 × L), (L + K1 × L), (−K1 × L) as shown in FIG. 3 (b). The inductors L3 and L6 shown in FIG. 3A have three inductances (Lg−K2 × Lg), (Lg−K2 × Lg), (Lg−K2 × Lg), ( K2 × Lg) can be replaced with three inductors.
　図３（ｂ）に示す等価回路では、Ｋ１×Ｌ＝Ｌｇ－Ｋ２×Ｌｇと設計することで、コンデンサ４およびコンデンサ５に直接接続されるインダクタンス成分をキャンセルすることができる。つまり、フィルタ部３０およびフィルタ部４０は、それぞれの寄生インダクタンスを打ち消し、高周波帯のノイズ抑制効果を向上させることができる。 In the equivalent circuit shown in FIG. 3B, the inductance component directly connected to the capacitor 4 and the capacitor 5 can be canceled by designing K1 × L = Lg−K2 × Lg. That is, the filter part 30 and the filter part 40 can cancel each parasitic inductance, and can improve the noise suppression effect of a high frequency band.
　しかし、コンデンサ４およびコンデンサ５に直接接続されず、接地電極ＧＮＤに接続する（Ｋ２×Ｌｇ）のインダクタンス成分が、フィルタ部３０およびフィルタ部４０の共通の寄生インダクタンスとして残る。そのため、インダクタＬ３とインダクタＬ６とが結合係数Ｋ２が大きくなると、フィルタ部３０およびフィルタ部４０の共通の寄生インダクタンスが大きくなるので、高周波帯のノイズ抑制効果が低下する。そこで、コネクタ１００では、インダクタＬ３とインダクタＬ６との磁気結合を低く抑える必要がある。 However, the inductance component connected to the ground electrode GND (K2 × Lg) is not directly connected to the capacitor 4 and the capacitor 5, but remains as a common parasitic inductance of the filter unit 30 and the filter unit 40. For this reason, when the coupling coefficient K2 between the inductor L3 and the inductor L6 increases, the common parasitic inductance of the filter unit 30 and the filter unit 40 increases, so that the noise suppression effect in the high frequency band decreases. Therefore, in the connector 100, it is necessary to keep the magnetic coupling between the inductor L3 and the inductor L6 low.
　次に、図３に示す等価回路において、結合係数Ｋ２と金属端子６，７間の距離との関係についてのシミュレーションを行った。図４は、結合係数Ｋ２と金属端子間の距離との関係を説明するためのグラフである。図４に示すグラフは、横軸を金属端子６と金属端子７との距離（ｍｍ）とし、縦軸をインダクタＬ３とインダクタＬ６との結合係数Ｋ２としている。図４に示すように、金属端子６と金属端子７との距離を長くなることで結合係数Ｋ２が低下することが分かる。例えば、金属端子６と金属端子７との距離が２ｍｍの場合、結合係数Ｋ２が０．７となり、金属端子６と金属端子７との距離が７ｍｍの場合、結合係数Ｋ２が０．３となる。 Next, in the equivalent circuit shown in FIG. 3, a simulation was performed on the relationship between the coupling coefficient K2 and the distance between the metal terminals 6 and 7. FIG. 4 is a graph for explaining the relationship between the coupling coefficient K2 and the distance between the metal terminals. In the graph shown in FIG. 4, the horizontal axis represents the distance (mm) between the metal terminal 6 and the metal terminal 7, and the vertical axis represents the coupling coefficient K2 between the inductor L3 and the inductor L6. As shown in FIG. 4, it can be seen that the coupling coefficient K2 decreases as the distance between the metal terminal 6 and the metal terminal 7 increases. For example, when the distance between the metal terminal 6 and the metal terminal 7 is 2 mm, the coupling coefficient K2 is 0.7, and when the distance between the metal terminal 6 and the metal terminal 7 is 7 mm, the coupling coefficient K2 is 0.3. .
　一方、図３に示す等価回路において、結合係数Ｋ２を変化させた場合の周波数に対する伝送特性についてシミュレーションを行った。図５は、図３に示す等価回路の周波数に対する伝送特性を示すグラフである。なお、図５に示すグラフは、横軸を周波数Ｆｒｅｑ（ＧＨｚ）とし、縦軸を伝送特性Ｓ２１（ｄＢ）としている。 On the other hand, in the equivalent circuit shown in FIG. 3, a simulation was performed with respect to transmission characteristics with respect to frequency when the coupling coefficient K2 was changed. FIG. 5 is a graph showing transmission characteristics with respect to frequency of the equivalent circuit shown in FIG. In the graph shown in FIG. 5, the horizontal axis represents frequency Freq (GHz), and the vertical axis represents transmission characteristics S21 (dB).
　図５に示す伝送特性を見ると、結合係数Ｋ２が大きくなるにつれて、０．０１０ＧＨｚ以上の周波数Ｆｒｅｑ（高周波帯）において伝送特性Ｓ２１が大きくなっている。つまり、コネクタ１００は、結合係数Ｋ２が大きくなるにつれて、０．０１０ＧＨｚ以上の周波数Ｆｒｅｑの出力信号を低減することができず、高周波帯のノイズ抑制効果が低下している。例えば、図５に示す伝送特性Ｓ２１において１．０００ＧＨｚまでの周波数Ｆｒｅｑの出力信号を－３０ｄＢ以上低減するためには、結合係数Ｋ２を０．４２より小さくする必要があることが分かる。結合係数Ｋ２を０．４２より小さくするには、図４に示すグラフから金属端子６と金属端子７との距離を５ｍｍ以上確保する必要がある。つまり、予め定められた距離を５ｍｍとする。 Referring to the transmission characteristics shown in FIG. 5, as the coupling coefficient K2 increases, the transmission characteristics S21 increase at a frequency Freq (high frequency band) of 0.010 GHz or higher. That is, as the coupling coefficient K2 increases, the connector 100 cannot reduce the output signal of the frequency Freq of 0.010 GHz or higher, and the noise suppression effect in the high frequency band is reduced. For example, in the transmission characteristic S21 shown in FIG. 5, in order to reduce the output signal of the frequency Freq up to 1.000 GHz by −30 dB or more, it is understood that the coupling coefficient K2 needs to be smaller than 0.42. In order to make the coupling coefficient K2 smaller than 0.42, it is necessary to secure a distance of 5 mm or more between the metal terminal 6 and the metal terminal 7 from the graph shown in FIG. That is, the predetermined distance is 5 mm.
　コネクタ１００では、金属端子６，７を金属板で形成してコンデンサ４，５の電極４ｂ，５ｂに電気的に接続して固定しているので、例えば、金属端子６と金属端子７との距離を５ｍｍ以上確保した位置に固定することが可能である（図１（ｂ）参照）。つまり、コネクタ１００では、専門的な知識が無くても結合係数Ｋ２を低く抑えて、高周波帯のノイズ抑制効果を向上させることができる。 In the connector 100, the metal terminals 6 and 7 are formed of a metal plate and are electrically connected and fixed to the electrodes 4b and 5b of the capacitors 4 and 5, so that, for example, the distance between the metal terminal 6 and the metal terminal 7 Can be fixed at a position where 5 mm or more is secured (see FIG. 1B). That is, the connector 100 can improve the noise suppression effect in the high frequency band by keeping the coupling coefficient K2 low even without specialized knowledge.
　以上のように、本発明の実施の形態１に係るコネクタ１００は、電線を中継するコネクタであって、配線２（第１配線に相当）および配線３（第３配線に相当）が、コイル部２ａ，３ａを有し、金属端子６（第２配線に相当）および金属端子７（第４配線に相当）が、金属端子６，７間の距離が予め定められた距離（例えば、５ｍｍ）以上となる位置で各々固定され、接地電極ＧＮＤに電気的に接続されるので、専門的な知識が無くてもコイル部２ａ，３ａでコンデンサ４．５（第１および第２キャパシタンス素子に相当）の寄生インダクタンスを打ち消し、金属端子６，７の間の磁気結合を低く抑えることが可能である。そのため、本発明の実施の形態１に係るコネクタ１００では、フィルタ部３０（第１フィルタ部に相当）およびフィルタ部４０（第２フィルタ部に相当）の共通の寄生インダクタンスを小さくし、コンデンサ４，５および金属端子６，７の寄生インダクタンスを打ち消して高周波帯のノイズ抑制効果を向上させることができる。 As described above, connector 100 according to Embodiment 1 of the present invention is a connector that relays electric wires, and wiring 2 (corresponding to the first wiring) and wiring 3 (corresponding to the third wiring) are coil portions. 2a and 3a, and the metal terminal 6 (corresponding to the second wiring) and the metal terminal 7 (corresponding to the fourth wiring) have a predetermined distance (for example, 5 mm) between the metal terminals 6 and 7 or more. Are fixed at respective positions and are electrically connected to the ground electrode GND, so that the coil 4.5a (corresponding to the first and second capacitance elements) can be used in the coil portions 2a and 3a without special knowledge. It is possible to cancel the parasitic inductance and keep the magnetic coupling between the metal terminals 6 and 7 low. Therefore, in connector 100 according to Embodiment 1 of the present invention, the common parasitic inductance of filter unit 30 (corresponding to the first filter unit) and filter unit 40 (corresponding to the second filter unit) is reduced, and capacitors 4, 5 and the parasitic inductance of the metal terminals 6 and 7 can be canceled to improve the noise suppression effect in the high frequency band.
　なお、コネクタ１００は、フィルタ部３０が２本の電線のうちの１つの電線５０ａ，５０ｂ（第１電線に相当）の途中に設けられ、フィルタ部４０が２本の電線のうちの１つの電線６０ａ，６０ｂ（第２電線に相当）の途中に設けられている。また、コネクタ１００は、２本の電線５０ａ，６０ａと電気的に接続するための接続部１０（第１接続部に相当）と、２本の電線５０ｂ，６０ｂと電気的に接続するための接続部２０（第２接続部に相当）とを有している。コネクタ１００は、接続部１０をコネクタ１０ａに、接続部２０をコネクタ２０ａにそれぞれ接続することで、電線５０ａと電線５０ｂ，電線６０ａと電線６０ｂをそれぞれ中継することができる。さらに、配線２は、両端の各々が電線５０ａ，５０ｂに電気的に接続されると共に、コンデンサ４に形成された電極４ａ（第１電極に相当）に電気的に接続され、配線３は、両端の各々が電線６０ａ，６０ｂに電気的に接続されると共に、コンデンサ５に形成された電極５ａ（第３電極に相当）に電気的に接続されている。 In the connector 100, the filter unit 30 is provided in the middle of one of the two electric wires 50a and 50b (corresponding to the first electric wire), and the filter unit 40 is one of the two electric wires. It is provided in the middle of 60a, 60b (corresponding to the second electric wire). In addition, the connector 100 is electrically connected to the two electric wires 50a and 60a (corresponding to the first connecting portion) and connected to be electrically connected to the two electric wires 50b and 60b. Part 20 (corresponding to the second connection part). The connector 100 can relay the electric wire 50a and the electric wire 50b, and the electric wire 60a and the electric wire 60b by connecting the connecting portion 10 to the connector 10a and the connecting portion 20 to the connector 20a, respectively. Furthermore, the wiring 2 is electrically connected to the electric wires 50a and 50b at both ends, and is also electrically connected to the electrode 4a (corresponding to the first electrode) formed on the capacitor 4, and the wiring 3 is connected to both ends. Are electrically connected to the electric wires 60a and 60b and electrically connected to an electrode 5a (corresponding to a third electrode) formed on the capacitor 5.
　フィルタ部３０においてコンデンサ４（第１キャパシタンス素子に相当）の電極４ｂ（第２電極に相当）が形成される側（図中の上側）は、フィルタ部４０においてコンデンサ５（第２キャパシタンス素子に相当）の電極５ｂ（第４電極に相当）が形成される側（図中の下側）と反対側である（図１（ａ）参照）。そのため、コネクタ１００は、電極４ｂに接続される金属端子６と電極５ｂに接続される金属端子７との配線間の距離を、予め定められた距離以上の距離を確保することが容易になる。 The side (upper side in the figure) where the electrode 4b (corresponding to the second electrode) of the capacitor 4 (corresponding to the first capacitance element) is formed in the filter part 30 is equivalent to the capacitor 5 (corresponding to the second capacitance element) in the filter part 40. ) On the side opposite to the side where the electrode 5b (corresponding to the fourth electrode) is formed (the lower side in the figure) (see FIG. 1A). Therefore, the connector 100 can easily secure a distance between the wirings of the metal terminal 6 connected to the electrode 4b and the metal terminal 7 connected to the electrode 5b that is a predetermined distance or more.
　なお、電線を中継するコネクタとして構成するのではなく、フィルタ部３０およびフィルタ部４０のみで構成したフィルタ回路として２本の電線の途中に設けてもよい。 In addition, you may provide in the middle of two electric wires as a filter circuit comprised only with the filter part 30 and the filter part 40 instead of comprising as a connector which relays an electric wire.
　（実施の形態２）
　本発明の実施の形態１では、コネクタ１００の接地電極ＧＮＤと接続する配線（第２配線，第４配線に相当）を金属板の金属端子６，７で形成し、コンデンサ４，５の電極４ｂ，５ｂに電気的に接続する構成について説明した。しかし、接地電極ＧＮＤと接続する配線は、配線間の距離が予め定められた距離以上となる位置で固定されていれば金属板に限定されない。例えば、接地電極ＧＮＤと接続する配線は、絶縁素材によって配線間の距離が予め定められた距離以上となる位置に各々固定される構成でもよい。本発明の実施の形態２では、接地電極ＧＮＤと接続する配線について具体的に説明する。図６は、本発明の実施の形態２に係るコネクタ１００ａの断面図である。 (Embodiment 2)
In the first embodiment of the present invention, wiring (corresponding to the second wiring and the fourth wiring) connected to the ground electrode GND of the connector 100 is formed by the metal terminals 6 and 7 of the metal plate, and the electrodes 4b of the capacitors 4 and 5 are used. , 5b has been described. However, the wiring connected to the ground electrode GND is not limited to the metal plate as long as the distance between the wirings is fixed at a predetermined distance or more. For example, the wiring connected to the ground electrode GND may be fixed to a position where the distance between the wirings is not less than a predetermined distance by an insulating material. In the second embodiment of the present invention, the wiring connected to the ground electrode GND will be specifically described. FIG. 6 is a cross-sectional view of connector 100a according to Embodiment 2 of the present invention.
　図６に示すコネクタ１００ａは、樹脂モールド１内に配線２および配線３をそれぞれ配置して、配線２にコンデンサ４の一方の電極４ａを、配線３にコンデンサ５の一方の電極５ａをそれぞれ電気的に接続している。そして、配線２をループ状に配置することでコイル部２ａを形成し、配線３をループ状に配置することでコイル部３ａを形成している。なお、コネクタ１００ａにおいて、図１に示すコネクタ１００と同じ構成については同じ符号を付して詳細な説明を省略する。また、コネクタ１００ａも他のコネクタと接続して電線を中継するコネクタを構成している。 A connector 100a shown in FIG. 6 has a wiring 2 and a wiring 3 arranged in a resin mold 1, respectively, and one electrode 4a of a capacitor 4 is electrically connected to the wiring 2, and one electrode 5a of a capacitor 5 is electrically connected to the wiring 3. Connected to. And the coil part 2a is formed by arrange | positioning the wiring 2 in loop shape, and the coil part 3a is formed by arrange | positioning the wiring 3 in loop shape. In the connector 100a, the same components as those of the connector 100 shown in FIG. The connector 100a also constitutes a connector that connects to another connector and relays the electric wire.
　次に、コネクタ１００ａは、コンデンサ４の他方の電極４ｂには配線８ａを、コンデンサ５の他方の電極５ｂには配線８ｂをそれぞれ電気的に接続している。そして、この配線８ａ，８ｂは、接地電極ＧＮＤと接続する配線であり、配線間の距離が予め定められた距離以上となるように絶縁素材である樹脂８ｃで位置が固定されている。配線８ａ，８ｂは、例えばフィーダー線のような形状をしている。そのため、コネクタ１００ａは、配線８ａと配線８ｂとの距離を一定に保つことができ、配線８ａと配線８ｂとの距離を５ｍｍ以上確保して磁気結合を低く抑えることができる。 Next, in the connector 100a, the wiring 8a is electrically connected to the other electrode 4b of the capacitor 4, and the wiring 8b is electrically connected to the other electrode 5b of the capacitor 5, respectively. The wirings 8a and 8b are wirings connected to the ground electrode GND, and their positions are fixed by a resin 8c that is an insulating material so that the distance between the wirings is not less than a predetermined distance. The wirings 8a and 8b have a shape like a feeder line, for example. Therefore, the connector 100a can keep the distance between the wiring 8a and the wiring 8b constant, and can secure a distance of 5 mm or more between the wiring 8a and the wiring 8b to keep magnetic coupling low.
　なお、配線８ａ，８ｂは、被覆線であり、被覆を施していない単線またはより線の銅線の部分が電極４ｂ，５ｂにそれぞれ電気的に接続している。配線８ａ，８ｂの被覆材と、配線８ａと配線８ｂとの位置を固定する樹脂８ｃとは絶縁素材であれば同じ材料であっても、異なる材料であってもよい。 Note that the wirings 8a and 8b are covered wires, and a single wire or a stranded copper wire portion that is not covered is electrically connected to the electrodes 4b and 5b, respectively. The covering material for the wirings 8a and 8b and the resin 8c for fixing the positions of the wirings 8a and 8b may be the same material or different materials as long as they are insulating materials.
　以上のように、本発明の実施の形態２に係るコネクタ１００ａは、配線８ａ（第２配線に相当）および配線８ｂ（第４配線に相当）が、配線８ａ，８ｂ間の距離が予め定められた距離以上となる位置に樹脂８ｃ（絶縁素材に相当）で固定されているので、配線８ａと配線８ｂとの磁気結合を低く抑えることができ、高周波帯のノイズ抑制効果を向上させることができる。 As described above, in the connector 100a according to the second embodiment of the present invention, the wiring 8a (corresponding to the second wiring) and the wiring 8b (corresponding to the fourth wiring) have a predetermined distance between the wirings 8a and 8b. Since the resin 8c (corresponding to an insulating material) is fixed at a position that is longer than the distance, the magnetic coupling between the wiring 8a and the wiring 8b can be kept low, and the noise suppression effect in the high frequency band can be improved. .
　なお、配線８ａ，８ｂは、配線間の距離が予め定められた距離以上となる位置に樹脂８ｃで固定されている構成に限定されず、配線間の距離が予め定められた距離以上となる位置に固定されていれば、いずれの手段で固定されていてもよい。 The wirings 8a and 8b are not limited to the configuration in which the distance between the wirings is fixed by the resin 8c at a position where the distance between the wirings is a predetermined distance or more, and the positions where the distance between the wirings is a predetermined distance or more. As long as it is fixed to, it may be fixed by any means.
　（実施の形態３）
　本発明の実施の形態１では、フィルタ部３０においてコンデンサ４の電極４ｂが形成される側が、フィルタ部４０においてコンデンサ５の電極５ｂが形成される側と反対側である（図１（ａ）参照）構成について説明した。しかし、コンデンサ４，５の電極４ｂ，５ｂの配置はこれに限定されるものではなく、同じ側の位置となるように配置されてもよい。そこで、本発明の実施の形態３では、コンデンサ４，５の電極４ｂ，５ｂの配置について具体的に説明する。図７は、本発明の実施の形態３に係るコネクタ１００ｂ，１００ｃの平面図である。 (Embodiment 3)
In Embodiment 1 of the present invention, the side on which the electrode 4b of the capacitor 4 is formed in the filter unit 30 is the side opposite to the side on which the electrode 5b of the capacitor 5 is formed in the filter unit 40 (see FIG. 1A). ) I explained the configuration. However, the arrangement of the electrodes 4b and 5b of the capacitors 4 and 5 is not limited to this, and may be arranged so as to be on the same side. Therefore, in the third embodiment of the present invention, the arrangement of the electrodes 4b and 5b of the capacitors 4 and 5 will be specifically described. FIG. 7 is a plan view of connectors 100b and 100c according to Embodiment 3 of the present invention.
　図７（ａ）に示すコネクタ１００ｂは、樹脂モールド１内に配線２および配線３をそれぞれ配置して、配線２にコンデンサ４の一方の電極４ａを、配線３にコンデンサ５の一方の電極５ａをそれぞれ電気的に接続している。そして、配線２をループ状に配置することでコイル部２ａを形成し、配線３をループ状に配置することでコイル部３ａを形成している。なお、コネクタ１００ｂにおいて、図１に示すコネクタ１００と同じ構成については同じ符号を付して詳細な説明を省略する。また、コネクタ１００ｂも他のコネクタと接続して電線を中継するコネクタを構成している。 In the connector 100b shown in FIG. 7A, the wiring 2 and the wiring 3 are arranged in the resin mold 1, and one electrode 4a of the capacitor 4 is arranged on the wiring 2, and one electrode 5a of the capacitor 5 is arranged on the wiring 3. Each is electrically connected. And the coil part 2a is formed by arrange | positioning the wiring 2 in loop shape, and the coil part 3a is formed by arrange | positioning the wiring 3 in loop shape. In addition, in the connector 100b, about the same structure as the connector 100 shown in FIG. 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. The connector 100b also constitutes a connector that is connected to another connector and relays the electric wire.
　しかし、コネクタ１００ｂは、フィルタ部４０ｂが図１に示すフィルタ部４０と異なり、フィルタ部４０ｂにおけるコンデンサ５の電極５ｂが形成される側が、フィルタ部３０におけるコンデンサ４の電極４ｂが形成される側と同じ側になるように配置されている。つまり、コネクタ１００ｂでは、フィルタ部３０においてコンデンサ４の電極４ｂが形成される側と、フィルタ部４０ｂにおいてコンデンサ５の電極５ｂが形成される側とがコネクタ１００ｂの同じ面側に配置されている。そのため、コネクタ１００ｂは、電極４ａに接続される金属端子６および電極５ａに接続される金属端子７を同じ面側から引き出すことができ、片側のみから接地電極ＧＮＤと接続することが可能な構造の場合に有利になる。 However, in the connector 100b, the filter part 40b is different from the filter part 40 shown in FIG. 1, and the side of the filter part 40b where the electrode 5b of the capacitor 5 is formed is the side where the electrode 4b of the capacitor 4 is formed in the filter part 30. They are placed on the same side. That is, in the connector 100b, the side where the electrode 4b of the capacitor 4 is formed in the filter unit 30 and the side where the electrode 5b of the capacitor 5 is formed in the filter unit 40b are arranged on the same surface side of the connector 100b. Therefore, the connector 100b has a structure in which the metal terminal 6 connected to the electrode 4a and the metal terminal 7 connected to the electrode 5a can be pulled out from the same surface side and can be connected to the ground electrode GND from only one side. Be advantageous in case.
　なお、コネクタ１００ｂは、電極４ｂと電極５ｂとを結ぶ直線が配線２，３の長手方向に対して直交以外（α≠９０°）の位置になるように配置されている。つまり、配線２，３の長手方向に対して直交する直線上にコンデンサ４とコンデンサ５とが並んでいない。これは、電極４ｂと電極５ｂとをコネクタ１００ｂの同じ面側に配置したことで、金属端子６，７間の距離が予め定められた距離より短くなることを回避するための構成である。 The connector 100b is arranged so that the straight line connecting the electrode 4b and the electrode 5b is at a position other than orthogonal (α ≠ 90 °) with respect to the longitudinal direction of the wirings 2 and 3. That is, the capacitor 4 and the capacitor 5 are not arranged on a straight line orthogonal to the longitudinal direction of the wirings 2 and 3. This is a configuration for avoiding the distance between the metal terminals 6 and 7 being shorter than a predetermined distance by arranging the electrode 4b and the electrode 5b on the same surface side of the connector 100b.
　図７（ａ）に示すように、コネクタ１００ｂでは、図中の左右方向にフィルタ部３０の電極４ｂとフィルタ部４０ｂの電極５ｂとの位置をずらすことで、電極４ｂと電極５ｂとをコネクタ１００ｂの同じ面側に配置しても金属端子６，７間の距離を長くすることができ、予め定められた距離以上の長さを確保することができる。 As shown in FIG. 7A, in the connector 100b, the electrodes 4b and 5b are connected to each other by shifting the positions of the electrode 4b of the filter unit 30 and the electrode 5b of the filter unit 40b in the left-right direction in the drawing. Even if they are arranged on the same surface side, the distance between the metal terminals 6 and 7 can be increased, and a length longer than a predetermined distance can be ensured.
　なお、電極４ｂと電極５ｂとをコネクタ１００ｂの反対の面側に配置した場合でも、電極４ｂと電極５ｂとを結ぶ直線が配線２および配線３の長手方向に対して直交以外の位置になるように配置してもよい。図７（ｂ）に示すコネクタ１００ｃは、フィルタ部４０ｃが図１に示すフィルタ部４０と異なり、電極４ｂと電極５ｂとを結ぶ直線が配線２および配線３の長手方向に対して直交以外（α≠９０°）の位置になるように配置している。つまり、コネクタ１００ｃは、図中の左右方向にフィルタ部３０の電極４ｂとフィルタ部４０ｃの電極５ｂとの位置をずらして配置してある。 Even when the electrode 4b and the electrode 5b are arranged on the opposite side of the connector 100b, the straight line connecting the electrode 4b and the electrode 5b is located at a position other than perpendicular to the longitudinal direction of the wiring 2 and the wiring 3. You may arrange in. In the connector 100c shown in FIG. 7B, the filter part 40c is different from the filter part 40 shown in FIG. 1, and the straight line connecting the electrode 4b and the electrode 5b is not orthogonal to the longitudinal direction of the wiring 2 and the wiring 3 (α ≠ 90 °). That is, the connector 100c is arranged by shifting the positions of the electrode 4b of the filter unit 30 and the electrode 5b of the filter unit 40c in the left-right direction in the drawing.
　コネクタ１００ｃは、左右方向にフィルタ部３０の電極４ｂとフィルタ部４０ｃの電極５ｂとの位置をずらすことで、図１（ａ）に示すコネクタ１００に比べて金属端子６と金属端子７との配線間の距離を長くすることができる。 The connector 100c is a wiring between the metal terminal 6 and the metal terminal 7 as compared with the connector 100 shown in FIG. 1A by shifting the positions of the electrode 4b of the filter unit 30 and the electrode 5b of the filter unit 40c in the left-right direction. The distance between them can be increased.
　以上のように、本発明の実施の形態３に係るコネクタ１００ｂは、フィルタ部３０においてコンデンサ４の電極４ｂが形成される側（図中の上側）が、フィルタ部４０ｂにおいてコンデンサ５の電極５ｂが形成される側（図中の上側）と同じ側である（図７（ａ）参照）。そのため、コネクタ１００ｂは、電極４ａに接続される金属端子６および電極５ａに接続される金属端子７をコネクタ１００ｂの同じ面側から引き出すことが可能なる。 As described above, in the connector 100b according to the third embodiment of the present invention, the side (the upper side in the figure) where the electrode 4b of the capacitor 4 is formed in the filter unit 30 is the electrode 5b of the capacitor 5 in the filter unit 40b. It is the same side as the side to be formed (upper side in the figure) (see FIG. 7A). Therefore, the connector 100b can pull out the metal terminal 6 connected to the electrode 4a and the metal terminal 7 connected to the electrode 5a from the same surface side of the connector 100b.
　また、コネクタ１００ｂ，１００ｃは、電極４ｂと電極５ｂとを結ぶ直線が配線２および配線３の長手方向に対して直交以外の位置になるように配置することで、金属端子６，７間の距離をより長くすることができる。 Further, the connectors 100b and 100c are arranged such that the straight line connecting the electrode 4b and the electrode 5b is located at a position other than perpendicular to the longitudinal direction of the wiring 2 and the wiring 3, so that the distance between the metal terminals 6 and 7 is increased. Can be made longer.
　（実施の形態４）
　本発明の実施の形態１では、図１に示すように配線２をループ状に配置することでコイル部２ａを形成し、配線３をループ状に配置することでコイル部３ａを形成する構成について説明した。しかし、コイル部２ａ，３ａの構成はこれに限定されない。本発明の実施の形態４では、コイル部の構成が異なるコネクタついて具体的に説明する。図８は、本発明の実施の形態４に係るコネクタ１００ｄの平面図である。 (Embodiment 4)
In the first embodiment of the present invention, as shown in FIG. 1, the coil portion 2 a is formed by arranging the wiring 2 in a loop shape, and the coil portion 3 a is formed by arranging the wiring 3 in a loop shape. explained. However, the configuration of the coil portions 2a and 3a is not limited to this. In the fourth embodiment of the present invention, connectors having different coil configurations will be specifically described. FIG. 8 is a plan view of a connector 100d according to Embodiment 4 of the present invention.
　図８に示すコネクタ１００ｄは、樹脂モールド１内に配線２および配線３をそれぞれ配置して、配線２にコンデンサ４の一方の電極４ａを、配線３にコンデンサ５の一方の電極５ａをそれぞれ電気的に接続している。そして、配線２をループ状に配置するとともに、配線２同士が重なる部分で配線２同士をツイストさせてコイル部２ｂを形成している。同様に、配線３をループ状に配置するとともに、配線３同士が重なる部分で配線３同士をツイストさせてコイル部３ｂを形成している。なお、コネクタ１００ｄにおいて、図１に示すコネクタ１００と同じ構成については同じ符号を付して詳細な説明を省略する。また、コネクタ１００ｄも他のコネクタと接続して電線を中継するコネクタを構成している。 A connector 100d shown in FIG. 8 has a wiring 2 and a wiring 3 arranged in a resin mold 1, respectively, and one electrode 4a of the capacitor 4 is electrically connected to the wiring 2, and one electrode 5a of the capacitor 5 is electrically connected to the wiring 3. Connected to. And while arrange | positioning the wiring 2 in loop shape, the wiring 2 is twisted in the part which wirings 2 overlap, and the coil part 2b is formed. Similarly, the wiring 3 is arranged in a loop, and the wiring 3 is twisted at a portion where the wirings 3 overlap with each other to form the coil portion 3b. In the connector 100d, the same components as those of the connector 100 shown in FIG. The connector 100d also constitutes a connector that is connected to another connector and relays the electric wire.
　以上のように、本発明の実施の形態４に係るコネクタ１００ｄは、コイル部２ｂ，３ｂを構成する配線２，３の少なくとも一部において、各々の配線２，３がツイストしているので、配線２，３をツイストしないコイル部に比べて結合係数Ｋ１（図３（ａ）参照）を大きくすることができる。そのため、コネクタ１００ｄは、寄生インダクタンスを打ち消すための負のインダクタンスを大きくすることができ、接地電極ＧＮＤに接続する配線（金属端子６，７など）を長くすることができる。 As described above, in the connector 100d according to the fourth embodiment of the present invention, each of the wires 2 and 3 is twisted in at least a part of the wires 2 and 3 constituting the coil portions 2b and 3b. The coupling coefficient K1 (see FIG. 3A) can be increased as compared with the coil portion in which 2 and 3 are not twisted. Therefore, the connector 100d can increase the negative inductance for canceling the parasitic inductance, and can lengthen the wiring ( metal terminals 6, 7 and the like) connected to the ground electrode GND.
　なお、コイル部の構成は、被覆線をループ状に配置することで形成される以外に、被覆材のないリード線をループ状に配置することで形成してもよい。また、コイル部の構成は、被覆線をループ状に配置するのではなく、ループ状に配線パターンを形成した回路基板でもよい。 In addition, the configuration of the coil portion may be formed by arranging lead wires without a covering material in a loop shape in addition to being formed by arranging the covered wire in a loop shape. Further, the configuration of the coil portion may be a circuit board in which a wiring pattern is formed in a loop shape, instead of arranging the covered wires in a loop shape.
　（実施の形態５）
　本発明の実施の形態１では、図１に示すように配線２をループ状に配置することでコイル部２ａを形成し、配線３をループ状に配置することでコイル部３ａを形成する構成について説明した。本発明の実施の形態５では、支持体に配線を巻き付けることでループ状のコイル部を形成する構成について説明する。図９は、本発明の実施の形態５に係るコネクタ１００ｅの平面図および側面図である。図９（ａ）がコネクタ１００ｅの平面図および図９（ｂ）がコネクタ１００ｅの側面図をそれぞれ示している。なお、コネクタ１００ｅにおいて、図１に示すコネクタ１００と同じ構成については同じ符号を付して詳細な説明を省略する。また、コネクタ１００ｅも他のコネクタと接続して電線を中継するコネクタを構成している。 (Embodiment 5)
In the first embodiment of the present invention, as shown in FIG. 1, the coil portion 2 a is formed by arranging the wiring 2 in a loop shape, and the coil portion 3 a is formed by arranging the wiring 3 in a loop shape. explained. In Embodiment 5 of the present invention, a configuration in which a loop-shaped coil portion is formed by winding a wiring around a support will be described. FIG. 9 is a plan view and a side view of a connector 100e according to Embodiment 5 of the present invention. FIG. 9A is a plan view of the connector 100e, and FIG. 9B is a side view of the connector 100e. In addition, in the connector 100e, about the same structure as the connector 100 shown in FIG. 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. The connector 100e also constitutes a connector that connects to another connector and relays the electric wire.
　図９に示すコネクタ１００ｅは、樹脂モールド１内に配線２および配線３をそれぞれ配置して、配線２にコンデンサ４の一方の電極４ａを、配線３にコンデンサ５の一方の電極５ａをそれぞれ電気的に接続している。なお、図示していないが、配線２とコンデンサ４の一方の電極４ａとの間、および配線３とコンデンサ５の一方の電極５ａとの間は、導電性接着剤または半田により接続されている。そして、配線２は、支持体７０に巻き付けられることでループ状に配置されコイル部２ｅを形成している。同様に、配線３は、支持体７０に巻き付けられることでループ状に配置されコイル部３ｅを形成している。 In the connector 100e shown in FIG. 9, the wiring 2 and the wiring 3 are arranged in the resin mold 1, respectively, and one electrode 4a of the capacitor 4 is electrically connected to the wiring 2, and one electrode 5a of the capacitor 5 is electrically connected to the wiring 3. Connected to. Although not shown, the wiring 2 and one electrode 4a of the capacitor 4 and the wiring 3 and one electrode 5a of the capacitor 5 are connected by a conductive adhesive or solder. The wiring 2 is wound around the support body 70 to be arranged in a loop shape to form a coil portion 2e. Similarly, the wiring 3 is wound around the support body 70 and arranged in a loop to form a coil portion 3e.
　支持体７０は、樹脂により構成され、表面に配線をループ状に巻き付けるための図９（ｂ）に示すように溝７１が形成されている。なお、支持体７０は、樹脂で形成されるが、絶縁性を有していれば何れの材料であってもよい。また、支持体７０は、樹脂モールド１内でコイル部を形成する位置に固定されている。なお、支持体７０は、樹脂モールド１と一体として成形されても、別体として形成され樹脂モールド１に固定されてもよい。 The support 70 is made of resin, and has a groove 71 formed on the surface as shown in FIG. 9B for winding the wiring in a loop. In addition, although the support body 70 is formed with resin, any material may be used as long as it has insulation. The support body 70 is fixed at a position where the coil portion is formed in the resin mold 1. The support body 70 may be molded integrally with the resin mold 1 or may be formed as a separate body and fixed to the resin mold 1.
　コネクタ１００ｅは、樹脂モールド１内に支持体７０を設けることで、コイル部２ｅとコイル部３ｅとの位置合わせが容易になり、製造時の作業性が向上する。さらに、支持体７０の表面には溝７１が予め形成してあるので、当該溝７１に配線２，３を添わせることでコイル部２ｅ，３ｅを形成することができる。そのため、コイル部２ｅ，３ｅは、ループ状に巻き付けた配線２，３間の距離が一定となるように固定でき、インダクタンスの値がばらつくことなく安定し、より精度の高いフィルタ回路３０ｅ，４０ｅを構成することができる。 The connector 100e is provided with the support body 70 in the resin mold 1, so that the coil part 2e and the coil part 3e can be easily aligned, and the workability during manufacturing is improved. Furthermore, since the groove 71 is formed in advance on the surface of the support 70, the coil portions 2 e and 3 e can be formed by attaching the wirings 2 and 3 to the groove 71. Therefore, the coil portions 2e and 3e can be fixed so that the distance between the wirings 2 and 3 wound in a loop is constant, the inductance value is stable without variation, and more accurate filter circuits 30e and 40e are provided. Can be configured.
　なお、支持体７０の表面に形成される溝７１は、図９（ｂ）に示すように配線２，３の半分を埋め込むことができる程度の深さである。しかし、溝７１の深さは、これに限定されず、配線を沿わせることができれば配線２，３の一部が埋め込むことができる程度の深さであっても、配線２，３を全部埋め込むことができる程度の深さであってもよい。 The groove 71 formed on the surface of the support 70 is deep enough to embed half of the wirings 2 and 3 as shown in FIG. 9B. However, the depth of the groove 71 is not limited to this, and all the wirings 2 and 3 are embedded even if the depth is such that a part of the wirings 2 and 3 can be embedded if the wirings can be arranged. It may be as deep as possible.
　以上のように、本発明の実施の形態５に係るコネクタ１００ｅは、配線２，３の各々の少なくとも一部をループ状に巻き付けるための溝７１が形成された支持体７０をさらに備える。そのため、コネクタ１００ｅは、コイル部２ｅ，３ｅの位置合わせが容易となり、製造時の作業性が向上するとともに、配線２，３間の距離が一定となるように固定でき、より精度の高いフィルタ回路３０ｅ，４０ｅを構成することができる。 As described above, the connector 100e according to the fifth embodiment of the present invention further includes the support body 70 in which the groove 71 for winding at least a part of each of the wires 2 and 3 in a loop shape is formed. Therefore, the connector 100e facilitates the positioning of the coil portions 2e and 3e, improves the workability at the time of manufacture, and can be fixed so that the distance between the wirings 2 and 3 is constant, thereby providing a more accurate filter circuit. 30e, 40e can be configured.
　（実施の形態６）
　本発明の実施の形態５では、図９（ａ）に示すようにコイル部２ｅが配置される面とコイル部３ｅが配置される面とが同一の平面に位置するように形成した構成について説明した。本発明の実施の形態６では、一方のコイル部が配置される面と他方のコイル部が配置される面とが対向するように形成した構成について説明する。図１０は、本発明の実施の形態６に係るコネクタ１００ｆの平面図および側面図である。図１０（ａ）がコネクタ１００ｆの平面図および図１０（ｂ）がコネクタ１００ｆの側面図をそれぞれ示している。なお、コネクタ１００ｆにおいて、図１に示すコネクタ１００と同じ構成については同じ符号を付して詳細な説明を省略する。また、コネクタ１００ｆも他のコネクタと接続して電線を中継するコネクタを構成している。 (Embodiment 6)
In the fifth embodiment of the present invention, as shown in FIG. 9A, a configuration in which the surface on which the coil portion 2e is disposed and the surface on which the coil portion 3e is disposed is positioned on the same plane will be described. did. In the sixth embodiment of the present invention, a configuration in which a surface on which one coil part is disposed and a surface on which the other coil part is disposed is described. FIG. 10 is a plan view and a side view of a connector 100f according to the sixth embodiment of the present invention. FIG. 10A is a plan view of the connector 100f, and FIG. 10B is a side view of the connector 100f. In the connector 100f, the same components as those in the connector 100 shown in FIG. The connector 100f also constitutes a connector that is connected to another connector and relays the electric wire.
　図１０に示すコネクタ１００ｆは、樹脂モールド１内に配線２および配線３をそれぞれ配置して、配線２にコンデンサ４の一方の電極４ａを、接続板８５を介して電気的に接続し、配線３にコンデンサ５の一方の電極５ａを、接続板８５を介して電気的に接続している。なお、接続板８５は、金属板で形成されるが、電導性を有していれば何れの材料であってもよい。そして、配線２は、支持体８０の一端に巻き付けられることでループ状に配置されコイル部２ｆを形成している。同様に、配線３は、支持体８０の他端に巻き付けられることでループ状に配置されコイル部３ｆを形成している。 The connector 100f shown in FIG. 10 has the wiring 2 and the wiring 3 disposed in the resin mold 1, and electrically connects one electrode 4a of the capacitor 4 to the wiring 2 via the connection plate 85. In addition, one electrode 5 a of the capacitor 5 is electrically connected via a connection plate 85. The connection plate 85 is formed of a metal plate, but may be any material as long as it has electrical conductivity. The wiring 2 is wound around one end of the support body 80 to be arranged in a loop to form a coil portion 2f. Similarly, the wiring 3 is wound around the other end of the support body 80 so as to be arranged in a loop to form a coil portion 3f.
　支持体８０は、樹脂により構成され、図１０（ｂ）に示すように側面から見た形状がＴ字形状である。なお、支持体８０は、樹脂で形成されるが、絶縁性を有していれば何れの材料であってもよい。支持体８０は、Ｔ字形状の一端に配線２をループ状に巻き付けるための溝８１が形成され、Ｔ字形状の他端に配線３をループ状に巻き付けるための溝８１が形成されている。また、コイル部２ｆとコイル部３ｆとは、１つの支持体８０の一端と他端とに形成されている。つまり、コイル部２ｆが配置される面とコイル部３ｆが配置される面とが対向する位置となるように、樹脂モールド１内の支持体８０で固定している。なお、一体の支持体８０にコイル部２ｆとコイル部３ｆとを形成する場合に限られず、コイル部２ｆが配置される面とコイル部３ｆが配置される面とが対向する位置に配置できれば、コイル部２ｆを形成する支持体と、コイル部３ｆを形成する支持体とが別体であってよい。さらに、支持体８０は、樹脂モールド１と一体として成形されても、別体として形成され樹脂モールド１に固定されてもよい。 The support 80 is made of resin, and the shape viewed from the side is a T-shape as shown in FIG. The support body 80 is made of a resin, but may be any material as long as it has an insulating property. In the support 80, a groove 81 for winding the wiring 2 in a loop shape is formed at one end of the T shape, and a groove 81 for winding the wiring 3 in a loop shape is formed at the other end of the T shape. Further, the coil part 2 f and the coil part 3 f are formed at one end and the other end of one support 80. That is, it fixes with the support body 80 in the resin mold 1 so that the surface where the coil part 2f is arrange | positioned and the surface where the coil part 3f is arrange | positioned may become a position which opposes. In addition, it is not restricted to the case where the coil part 2f and the coil part 3f are formed on the integrated support body 80, and if the surface on which the coil part 2f is disposed and the surface on which the coil part 3f is disposed can be disposed at opposite positions, The support body that forms the coil portion 2f and the support body that forms the coil portion 3f may be separate. Further, the support 80 may be formed integrally with the resin mold 1 or may be formed as a separate body and fixed to the resin mold 1.
　コイル部２ｆとコイル部３ｆとの位置関係は、図１０（ｂ）に示すようにコイル部２ｆが配置される面とコイル部３ｆが配置される面とが完全に対向する位置が好ましい。しかし、コイル部２ｆとコイル部３ｆとの位置関係は、コイル部２ｆが配置される面とコイル部３ｆが配置される面とが一部対向する位置であってもよい。 The positional relationship between the coil portion 2f and the coil portion 3f is preferably a position where the surface on which the coil portion 2f is disposed and the surface on which the coil portion 3f is completely opposed as shown in FIG. 10 (b). However, the positional relationship between the coil portion 2f and the coil portion 3f may be a position where the surface on which the coil portion 2f is disposed and the surface on which the coil portion 3f is disposed partially face each other.
　以上のように、本発明の実施の形態６に係るコネクタ１００ｆは、フィルタ部３０ｆのコイル部２ｆが配置される面が、フィルタ部４０ｆのコイル部３ｆが配置される面と対向する位置にある。そのため、コネクタ１００ｆは、コイル部２ｆとコイル部３ｆとを同一の平面に位置するように形成した場合に比べて、コイルの巻き方向の空間を有効に利用して小型化することができる。特に、コイル部２ｆおよびコイル部３ｆのコイル径が大きくなった場合、コイル部２ｆとコイル部３ｆとを同一の平面に位置するように形成したのでは、コネクタが大型化する。しかし、コネクタ１００ｆのように、フィルタ部３０ｆのコイル部２ｆが配置される面が、フィルタ部４０ｆのコイル部３ｆが配置される面と対向する位置に形成することで、コイル径が大きくなったとしても比較的に小型化することができる。 As described above, in the connector 100f according to Embodiment 6 of the present invention, the surface on which the coil portion 2f of the filter portion 30f is disposed is at a position facing the surface on which the coil portion 3f of the filter portion 40f is disposed. . Therefore, the connector 100f can be reduced in size by effectively using the space in the coil winding direction as compared with the case where the coil portion 2f and the coil portion 3f are formed so as to be positioned on the same plane. In particular, when the coil diameters of the coil part 2f and the coil part 3f are increased, if the coil part 2f and the coil part 3f are formed so as to be positioned on the same plane, the size of the connector increases. However, like the connector 100f, the surface on which the coil portion 2f of the filter portion 30f is disposed is formed at a position facing the surface on which the coil portion 3f of the filter portion 40f is disposed, thereby increasing the coil diameter. However, it can be made relatively small.
　なお、コネクタ１００ｆでは、支持体８０に配線２，３を巻き付けることでコイル部２ｆ，３ｆを形成したが、コイル部２ｆが配置される面が、コイル部３ｆが配置される面と対向する位置に形成されていれば、支持体８０はなくてもよい。つまり、配線２，３をループ状に配置することでコイル部を形成し、一方のコイル部が配置される面と他方のコイル部が配置される面とが対向するように形成する。 In the connector 100f, the coil portions 2f and 3f are formed by winding the wirings 2 and 3 around the support 80. However, the surface on which the coil portion 2f is disposed is opposed to the surface on which the coil portion 3f is disposed. As long as the support 80 is formed, the support 80 may be omitted. That is, a coil part is formed by arranging the wirings 2 and 3 in a loop shape, and the surface on which one coil part is disposed and the surface on which the other coil part is disposed are formed to face each other.
　（実施の形態７）
　本発明の実施の形態１～６では、電線を中継するコネクタにフィルタ回路が設けられた構成として説明したが、フィルタ回路自体の構成であってもよい。本発明の実施の形態７では、特に、フィルタ回路を構成するキャパシタンス素子がチップコンデンサではなく、リード線付きのキャパシタンス素子であるフィルタ回路の構成について説明する。図１１は、本発明の実施の形態７に係るフィルタ回路２００の概略図である。なお、フィルタ回路２００において、図１に示すコネクタ１００においてフィルタ回路を構成しているフィルタ部３０，４０と同じ構成については同じ符号を付して詳細な説明を省略する。また、フィルタ回路２００も、他のコネクタと接続して電線を中継するコネクタに内蔵されてもよい。 (Embodiment 7)
In Embodiments 1 to 6 of the present invention, the filter circuit is provided in the connector that relays the electric wire. However, the filter circuit itself may be configured. In the seventh embodiment of the present invention, a configuration of a filter circuit in which the capacitance element constituting the filter circuit is not a chip capacitor but a capacitance element with a lead wire will be described. FIG. 11 is a schematic diagram of a filter circuit 200 according to Embodiment 7 of the present invention. In the filter circuit 200, the same components as those of the filter units 30 and 40 constituting the filter circuit in the connector 100 shown in FIG. The filter circuit 200 may also be incorporated in a connector that connects to another connector and relays an electric wire.
　図１１に示すフィルタ回路２００では、配線２を支持体９０の一端に巻き付けることでループ状のコイル部２ｇを形成し、配線３を支持体９０の他端に巻き付けることでループ状のコイル部３ｇを形成している。コイル部２ｇを形成している配線２に、リード線付きのコンデンサ４５を電気的に接続する。具体的に、コンデンサ４５の一方のリード線４５ａを、コイル部２ｇの部分の配線２に電気的に接続する。同様に、コイル部３ｇを形成している配線３に、リード線付きのコンデンサ５５を電気的に接続する。具体的に、コンデンサ５５の一方のリード線５５ａを、コイル部３ｇの部分の配線３に電気的に接続する。なお、コンデンサ４５の他方のリード線４５ｂおよびコンデンサ５５の他方のリード線５５ｂは、それぞれ接地電極ＧＮＤに電気的に接続している。 In the filter circuit 200 shown in FIG. 11, the loop-shaped coil portion 2g is formed by winding the wiring 2 around one end of the support 90, and the loop-shaped coil portion 3g is wound by winding the wiring 3 around the other end of the support 90. Is forming. A capacitor 45 with a lead wire is electrically connected to the wiring 2 forming the coil portion 2g. Specifically, one lead wire 45a of the capacitor 45 is electrically connected to the wiring 2 in the coil portion 2g. Similarly, the capacitor | condenser 55 with a lead wire is electrically connected to the wiring 3 which forms the coil part 3g. Specifically, one lead wire 55a of the capacitor 55 is electrically connected to the wiring 3 in the coil portion 3g. The other lead wire 45b of the capacitor 45 and the other lead wire 55b of the capacitor 55 are each electrically connected to the ground electrode GND.
　支持体９０は、樹脂により構成され、図１１に示すように側面から見た形状がＩ字形状である。なお、支持体９０は、樹脂で形成されるが、絶縁性を有していれば何れの材料であってもよい。支持体９０は、Ｉ字形状の一端に配線２をループ状に巻き付けるための溝９１が形成され、Ｉ字形状の他端に配線３をループ状に巻き付けるための溝９１が形成されている。また、コイル部２ｇとコイル部３ｇとは、１つの支持体９０の一端と他端とに形成されている。つまり、コイル部２ｇが配置される面とコイル部３ｇが配置される面とが対向する位置となるように、支持体９０が固定されている。なお、一体の支持体９０にコイル部２ｇとコイル部３ｇとを形成する場合に限られず、コイル部２ｇを形成する支持体９０と、コイル部３ｇを形成する支持体９０とを別体として図９（ｂ）のようにコイル部２ｇとコイル部３ｇとを同一の平面に位置するように形成してもよい。 The support 90 is made of resin, and the shape viewed from the side is I-shaped as shown in FIG. In addition, although the support body 90 is formed with resin, any material may be used as long as it has insulation. In the support 90, a groove 91 for winding the wiring 2 in a loop shape is formed at one end of the I shape, and a groove 91 for winding the wiring 3 in a loop shape is formed at the other end of the I shape. Moreover, the coil part 2g and the coil part 3g are formed in the one end and the other end of the one support body 90. FIG. That is, the support body 90 is fixed so that the surface on which the coil portion 2g is disposed and the surface on which the coil portion 3g is disposed face each other. Note that the present invention is not limited to the case where the coil part 2g and the coil part 3g are formed on the integrated support body 90, and the support body 90 that forms the coil part 2g and the support body 90 that forms the coil part 3g are illustrated separately. As in 9 (b), the coil part 2g and the coil part 3g may be formed so as to be located on the same plane.
　以上のように、本発明の実施の形態７に係るフィルタ回路２００は、ループ状のコイル部２ｇ，３ｇにそれぞれリード線付きのコンデンサ４５，５５を電気的に接続している。そのため、フィルタ回路２００は、実施の形態１で説明したように、共通の寄生インダクタンスを小さくし、コンデンサ４５，５５およびリード線の寄生インダクタンスを打ち消して高周波帯のノイズ抑制効果を向上させることができる。 As described above, in the filter circuit 200 according to the seventh embodiment of the present invention, the capacitors 45 and 55 with lead wires are electrically connected to the loop-shaped coil portions 2g and 3g, respectively. Therefore, as described in the first embodiment, the filter circuit 200 can reduce the common parasitic inductance, cancel the parasitic inductances of the capacitors 45 and 55 and the lead wires, and improve the noise suppression effect in the high frequency band. .
　なお、フィルタ回路２００では、支持体９０に配線２，３を巻き付けることでコイル部２ｇ，３ｇを形成したが、配線２，３の途中にコイル部２ｇ，３ｇが形成されていれば、支持体９０はなくてもよい。つまり、配線２，３をループ状に配置することでコイル部２ｇ，３ｇを形成してもよい。 In the filter circuit 200, the coil portions 2g and 3g are formed by winding the wires 2 and 3 around the support 90. However, if the coil portions 2g and 3g are formed in the middle of the wires 2 and 3, the support body There is no need for 90. That is, the coil portions 2g and 3g may be formed by arranging the wirings 2 and 3 in a loop shape.
　（変形例）
　本発明の実施の形態１～７で説明した構成の変形例について以下に説明する。 (Modification)
Modification examples of the configuration described in the first to seventh embodiments of the present invention will be described below.
　（１）図１に示すフィルタ部３０，４０に形成されるコイル部２ａ，３ａは、配線２，３をループ状に配置した各々１つのコイルであると説明したが、本発明はこれに限定されない。例えば、配線をループ状に配置したコイルを各々複数設けて、複数のコイル部を構成してもよい。なお、図８に示すフィルタ部３０ｄ，４０ｄに形成されるコイル部２ｂ，３ｂも、複数のコイル部を構成してもよい。 (1) Although it has been described that the coil portions 2a and 3a formed in the filter portions 30 and 40 shown in FIG. 1 are each one coil in which the wirings 2 and 3 are arranged in a loop shape, the present invention is limited to this. Not. For example, a plurality of coils may be provided by providing a plurality of coils each having wiring arranged in a loop. Note that the coil portions 2b and 3b formed in the filter portions 30d and 40d shown in FIG. 8 may also constitute a plurality of coil portions.
　（２）図１に示すコネクタ１００は、コイル部２ａ，３ａやコンデンサ４，５を樹脂モールド１で覆う構成であると説明したが、本発明はこれに限定されない。例えば、コネクタ１００は、樹脂モールドで覆わずに基板上にコイル部２ａ，３ａやコンデンサ４，５を配置しただけの構成でもよい。なお、同様に図６に示すコネクタ１００ａ、図７に示すコネクタ１００ｂ，１００ｃおよび図８に示すコネクタ１００ｄも、樹脂モールドで覆わずに基板上にコイル部やコンデンサを配置しただけの構成でもよい。 (2) Although it has been described that the connector 100 shown in FIG. 1 is configured to cover the coil portions 2a and 3a and the capacitors 4 and 5 with the resin mold 1, the present invention is not limited to this. For example, the connector 100 may have a configuration in which the coil portions 2a and 3a and the capacitors 4 and 5 are arranged on the substrate without being covered with a resin mold. Similarly, the connector 100a shown in FIG. 6, the connectors 100b and 100c shown in FIG. 7, and the connector 100d shown in FIG. 8 may have a configuration in which a coil portion and a capacitor are simply arranged on a substrate without being covered with a resin mold.
　（３）コンデンサ４，５は、チップコンデンサであると説明したが、BaTiO3（チタン酸バリウム）を主成分とした積層セラミックコンデンサや、他の材料を主成分とした積層セラミックコンデンサでもよい。さらに、コンデンサ４，５は、積層セラミックコンデンサに限定されるものではなく、例えばアルミ電解コンデンサなどの他の種類のコンデンサでもよい。 (3) Although the capacitors 4 and 5 have been described as chip capacitors, multilayer ceramic capacitors mainly composed of BaTiO3 (barium titanate) or multilayer ceramic capacitors mainly composed of other materials may be used. Furthermore, the capacitors 4 and 5 are not limited to multilayer ceramic capacitors, and may be other types of capacitors such as aluminum electrolytic capacitors.
　（４）コネクタ１００，１００ａ～ｄは、２本の電線同士を接続して、中継するコネクタであると説明したが。３本以上の電線同士を接続して、中継するコネクタにも同様に適用することができる。 (4) Although the connectors 100, 100a to d are described as connectors that connect two wires and relay them. It can be similarly applied to a connector that connects and relays three or more wires.
　今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した説明ではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
　１　樹脂モールド、２，３，８ａ，８ｂ　配線、２ａ，２ｂ，３ａ，３ｂ　コイル部、４，５　コンデンサ、４ａ，４ｂ，５ａ，５ｂ　電極、６，７　金属端子、８ｃ　樹脂、１０，２０　接続部、１０ａ，２０ａ，１００，１００ａ～ｄ　コネクタ、３０，３０ｄ，４０，４０ｂ～ｄ　フィルタ部。 1 resin mold, 2, 3, 8a, 8b wiring, 2a, 2b, 3a, 3b coil part, 4, 5 capacitor, 4a, 4b, 5a, 5b electrode, 6, 7 metal terminal, 8c resin, 10, 20 connection Part, 10a, 20a, 100, 100a-d connector, 30, 30d, 40, 40b-d filter part.

Claims (14)

  1. 　２本の電線の途中に設けられるフィルタ回路であって、
    　前記２本の電線のうちの第１電線の途中に設けられる第１フィルタ部と、
    　前記２本の電線のうちの第２電線の途中に設けられる第２フィルタ部とを備え、
    　前記第１フィルタ部は、
    　　第１キャパシタンス素子と、
    　　両端の各々が前記第１電線に電気的に接続されると共に、前記第１キャパシタンス素子に形成された第１電極に電気的に接続された第１配線と、
    　　前記第１キャパシタンス素子に形成された第２電極に電気的に接続された第２配線とを備え、
    　前記第２フィルタ部は、
    　　第２キャパシタンス素子と、
    　　両端の各々が前記第２電線に電気的に接続されると共に、前記第２キャパシタンス素子に形成された第３電極に電気的に接続された第３配線と、
    　　前記第２キャパシタンス素子に形成された第４電極に電気的に接続された第４配線とを備え、
    　前記第１配線および前記第３配線の各々は、少なくとも１つのコイル部を有し、
    　前記第２配線および前記第４配線は、前記第２配線と前記第４配線との距離が予め定められた距離以上となる位置で各々固定され、接地電極に電気的に接続される、フィルタ回路。     A filter circuit provided in the middle of two electric wires,
    A first filter portion provided in the middle of the first electric wire of the two electric wires;
    A second filter portion provided in the middle of the second electric wire of the two electric wires,
    The first filter unit includes:
    A first capacitance element;
    Each of both ends is electrically connected to the first electric wire, and a first wiring electrically connected to a first electrode formed on the first capacitance element;
    A second wiring electrically connected to the second electrode formed in the first capacitance element,
    The second filter unit is
    A second capacitance element;
    Each of both ends is electrically connected to the second electric wire, and a third wiring electrically connected to a third electrode formed in the second capacitance element;
    A fourth wiring electrically connected to a fourth electrode formed in the second capacitance element;
    Each of the first wiring and the third wiring has at least one coil portion,
    The filter circuit, wherein the second wiring and the fourth wiring are each fixed at a position where a distance between the second wiring and the fourth wiring is not less than a predetermined distance and is electrically connected to a ground electrode. .
  2. 　前記第２配線および前記第４配線の各々は、金属板で形成され、前記第２配線と前記第４配線との距離が予め定められた距離以上となる位置で各々固定されている、請求項１に記載のフィルタ回路。 Each of the said 2nd wiring and the said 4th wiring is formed with a metal plate, and each is fixed in the position where the distance of the said 2nd wiring and the said 4th wiring becomes more than predetermined distance. 2. The filter circuit according to 1.
  3. 　前記第２配線および前記第４配線は、前記第２配線と前記第４配線との距離が予め定められた距離以上となる位置に絶縁素材で固定されている、請求項１に記載のフィルタ回路。 2. The filter circuit according to claim 1, wherein the second wiring and the fourth wiring are fixed with an insulating material at a position where a distance between the second wiring and the fourth wiring is not less than a predetermined distance. .
  4. 　前記第１フィルタ部において前記第２電極が形成されている側は、前記第２フィルタ部において前記第４電極が形成されている側と同じ側である、請求項１～請求項３のいずれか１項に記載のフィルタ回路。 The side on which the second electrode is formed in the first filter portion is the same side as the side on which the fourth electrode is formed in the second filter portion. 2. The filter circuit according to item 1.
  5. 　前記第１フィルタ部において前記第２電極が形成されている側は、前記第２フィルタ部において前記第４電極が形成されている側と反対側である、請求項１～請求項３のいずれか１項に記載のフィルタ回路。 The side of the first filter portion where the second electrode is formed is the opposite side of the second filter portion where the fourth electrode is formed. 2. The filter circuit according to item 1.
  6. 　前記第１フィルタ部および前記第２フィルタ部は、前記第２電極と前記第４電極とを結ぶ直線が前記第１配線および前記第３配線の長手方向に対して直交以外の位置になるように配置されている、請求項４または請求項５に記載のフィルタ回路。 The first filter portion and the second filter portion are arranged such that a straight line connecting the second electrode and the fourth electrode is at a position other than perpendicular to the longitudinal direction of the first wiring and the third wiring. 6. The filter circuit according to claim 4, wherein the filter circuit is arranged.
  7. 　前記第１フィルタ部の前記コイル部が配置される面は、前記第２フィルタ部の前記コイル部が配置される面と対向する位置にある、請求項１～請求項３のいずれか１項に記載のフィルタ回路。 The surface of the first filter portion on which the coil portion is disposed is at a position facing the surface of the second filter portion on which the coil portion is disposed. The filter circuit as described.
  8. 　前記第１配線および前記第３配線の各々の少なくとも一部が、ループ状に配置されることで前記コイル部を構成している、請求項１～請求項７のいずれか１項に記載のフィルタ回路。 The filter according to any one of claims 1 to 7, wherein at least a part of each of the first wiring and the third wiring constitutes the coil portion by being arranged in a loop shape. circuit.
  9. 　前記第１配線および前記第３配線の各々の少なくとも一部をループ状に巻き付けるための溝が形成された支持体をさらに備える、請求項８に記載のフィルタ回路。 9. The filter circuit according to claim 8, further comprising a support body on which a groove for winding at least a part of each of the first wiring and the third wiring in a loop shape is formed.
  10. 　前記コイル部を構成する前記第１配線および前記第３配線の各々の少なくとも一部は、各々の配線がツイストしている、請求項８または請求項９に記載のフィルタ回路。 The filter circuit according to claim 8 or 9, wherein at least a part of each of the first wiring and the third wiring constituting the coil section is twisted.
  11. 　前記第１配線および前記第３配線は、被覆線である、請求項１～請求項１０のいずれか１項に記載のフィルタ回路。 11. The filter circuit according to claim 1, wherein the first wiring and the third wiring are covered wires.
  12. 　前記第２配線と前記第４配線との距離は、５ｍｍ以上を確保する、請求項１～請求項１１のいずれか１項に記載のフィルタ回路。 12. The filter circuit according to claim 1, wherein a distance between the second wiring and the fourth wiring is 5 mm or more.
  13. 　請求項１～請求項１２のいずれか１項に記載の前記フィルタ回路を含む、中継型のコネクタ。 A relay-type connector including the filter circuit according to any one of claims 1 to 12.
  14. 　電線を中継するコネクタであって、
    　２本の電線と電気的に接続するための第１接続部と、
    　前記第１接続部と異なる側の前記２本の電線と電気的に接続するための第２接続部と、
    　前記２本の電線のうちの第１電線と電気的に接続される第１フィルタ部と、
    　前記２本の電線のうちの第２電線と電気的に接続される第２フィルタ部とを備え、
    　前記第１フィルタ部は、
    　　第１キャパシタンス素子と、
    　　両端の各々が前記第１電線に電気的に接続されると共に、前記第１キャパシタンス素子に形成された第１電極に電気的に接続された第１配線と、
    　　前記第１キャパシタンス素子に形成された第２電極に電気的に接続された第２配線とを備え、
    　前記第２フィルタ部は、
    　　第２キャパシタンス素子と、
    　　両端の各々が前記第２電線に電気的に接続されると共に、前記第２キャパシタンス素子に形成された第３電極に電気的に接続された第３配線と、
    　　前記第２キャパシタンス素子に形成された第４電極に電気的に接続された第４配線とを備え、
    　前記第１配線および前記第３配線の各々は、少なくとも１つのコイル部を有し、
    　前記第２配線および前記第４配線は、前記第２配線と前記第４配線との距離が予め定められた距離以上となる位置で各々固定され、接地電極に電気的に接続される、コネクタ。     A connector for relaying electric wires,
    A first connection for electrically connecting the two electric wires;
    A second connecting portion for electrically connecting the two electric wires on a different side from the first connecting portion;
    A first filter part electrically connected to the first electric wire of the two electric wires;
    A second filter portion electrically connected to the second electric wire of the two electric wires,
    The first filter unit includes:
    A first capacitance element;
    Each of both ends is electrically connected to the first electric wire, and a first wiring electrically connected to a first electrode formed on the first capacitance element;
    A second wiring electrically connected to the second electrode formed in the first capacitance element,
    The second filter unit is
    A second capacitance element;
    Each of both ends is electrically connected to the second electric wire, and a third wiring electrically connected to a third electrode formed in the second capacitance element;
    A fourth wiring electrically connected to a fourth electrode formed in the second capacitance element;
    Each of the first wiring and the third wiring has at least one coil portion,
    The connector, wherein the second wiring and the fourth wiring are each fixed at a position where a distance between the second wiring and the fourth wiring is not less than a predetermined distance, and is electrically connected to a ground electrode.
PCT/JP2017/019307 2016-06-01 2017-05-24 Filter circuit and connector WO2017208919A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6602518B1 (en) * 2019-03-07 2019-11-06 三菱電機株式会社 Noise filter circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6282709A (en) * 1985-10-07 1987-04-16 Murata Mfg Co Ltd Line filter
JPH03256306A (en) * 1990-03-06 1991-11-15 Matsushita Electric Ind Co Ltd Lc composite component
WO2005101626A1 (en) * 2004-03-31 2005-10-27 Tdk Corporation Noise control circuit
JP2006287427A (en) * 2005-03-31 2006-10-19 Tdk Corp Noise suppressing circuit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5570055B2 (en) * 2010-01-12 2014-08-13 矢崎総業株式会社 Capacitor type high frequency noise filter for automotive equipment
JP6438677B2 (en) * 2014-05-13 2018-12-19 矢崎総業株式会社 Noise filter device and harness

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6282709A (en) * 1985-10-07 1987-04-16 Murata Mfg Co Ltd Line filter
JPH03256306A (en) * 1990-03-06 1991-11-15 Matsushita Electric Ind Co Ltd Lc composite component
WO2005101626A1 (en) * 2004-03-31 2005-10-27 Tdk Corporation Noise control circuit
JP2006287427A (en) * 2005-03-31 2006-10-19 Tdk Corp Noise suppressing circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6602518B1 (en) * 2019-03-07 2019-11-06 三菱電機株式会社 Noise filter circuit

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