JP4441688B2 - Coil component connection structure - Google Patents

Description

  The present invention relates to a coil component connection structure for connecting a coil component manufactured using a flexible wiring board to a power supply system wiring.

When connecting a terminal of a coil component manufactured by spirally winding one wire to a power supply system wiring, the terminal (both ends of the wire) of the wire (coil) wired in a spiral is drawn out, and this wire Are connected to the first connector, a second connector connected to a cable extending from a power source is mounted on a base on which the coil component is installed, and the first connector and the second connector are connected to each other. Thus, the connection of the coil parts has been attempted. (For example, see Patent Document 1)
Japanese Utility Model Publication No. 5-073916

In the connection structure of the coil component according to the prior art, the connection by the terminal of the coil component and the first connector, the connection by the power supply system wiring and the second connector, and the connection by the first connector and the second connector, Since the power supply system wiring and the coil parts are connected by three connections, there are many work processes during assembly, and if any of the three connections is disconnected, the power supply system wiring and the coil parts cannot be connected. There was a problem that connection reliability was low and quality assurance was difficult. In addition, since the two connectors of the first and second connectors must be used, the number of parts is increased and the cost is increased.
Further, when a coil component is manufactured by spirally winding one wire, a jig for winding the wire spirally and maintaining its shape is required, and a multi-turn coil component is manufactured. There is a problem that the work process for winding the coil increases.
Therefore, in recent years, a coil component has been developed in which a flexible wiring substrate is wound around the outer periphery of a cylindrical body to form a cylindrical substrate, and a wiring pattern is spirally arranged along the peripheral surface of the cylindrical body.
However, in the coil component using the flexible wiring board, since the terminal of the wiring pattern wired spirally is formed on the board surface, it is difficult to pull out the wiring and connect the terminal to the connector. As described above, the power supply system wiring and the coil component are connected by connecting the first connector to which the wire drawn from the coil component is connected and the second connector to which the cable extending from the power source is connected. I can't.

  In view of the above problems, according to the present invention, there is provided a coil component connection structure for connecting a coil component manufactured using a flexible wiring board and a power supply system wiring.

  The present invention relates to a coil component connection structure for connecting a coil component having a spiral wiring pattern formed on a peripheral surface of a cylindrical substrate to a power supply system wiring, and the flexible wiring substrate or the flexible flat cable is connected to the cylinder. A cylindrical part is formed by being arranged along the outer peripheral surface of the member, and a coil component formed by wiring a wiring pattern in a spiral shape along the peripheral surface of the cylindrical board is mounted on the cylindrical member, and the cylindrical type The first and second connection terminals of the wiring pattern are arranged on the outer peripheral surface of the coil component made of the substrate, and the cylindrical member on which the coil component made of the cylindrical substrate is further mounted is connected to the power supply system wiring. A coil mounted on a cylindrical member by being fitted into a cylindrical base having a connector and press-contacting the pressure-contacting piece of the connector to the first and second connection terminals arranged on the outer peripheral surface of the cylindrical substrate. It connects the component to the power supply system line.

According to the present invention, a flexible wiring board or a flexible flat cable is used to constitute a coil component made of a cylindrical board in which a wiring pattern is spirally wired, and the coil part made of this cylindrical board is connected to a power supply system wiring. Therefore, it is not necessary to manufacture a coil component by winding a wire. That is, it is possible to reduce the number of parts and work processes necessary for manufacturing the coil parts to be used.
Also, unlike the coil component connection structure according to the prior art, there is no step of drawing out the terminal of the wire wired in a spiral or connecting the terminal to the connector, so the power supply system wiring and the coil component are connected. The number of parts required for the operation can be reduced, and the work process relating to the connection of the coil parts can be reduced.
In addition, the first and second connection terminals exposing both ends of the spirally wired wiring pattern are pressed against the pressure contact pieces of the connector connected to the power supply system wiring, thereby providing power supply system wiring. Since the coil component can be connected, the connection work of the coil component is easy.
Therefore, for example, when mounting a coil component on an in-vehicle cup holder, a container case, a console, etc., to add a charging function, or to add a function such as a Bluetooth antenna or LED illumination (position of the cup holder etc.) A cylindrical base having a connector connected to a power supply system wiring from the vehicle body is provided on the vehicle body side), and a coil component made of a cylindrical substrate is mounted on the outer periphery of the cylindrical body such as the cup holder. If a cup holder mounted with a coil component made of a cylindrical substrate is mounted on the base, power from the vehicle body can be supplied to the coil component, and the cup holder mounted with the coil component can be easily attached and detached.

  A connection structure for coil parts according to an embodiment of the present invention will be described with reference to FIGS.

First, a connection structure for a coil component according to a first embodiment of the present invention will be described with reference to FIGS.
In this embodiment, for example, a coil component comprising a cylindrical substrate 10 mounted around a cylindrical member 30 such as an in-vehicle cup holder is connected to a power supply system wiring 40 on the vehicle body side. 1 or a flexible flat cable 1 ′ is arranged along the outer peripheral surface of the cylindrical member 30 such as a cup holder to form the cylindrical substrate 10, and the wiring pattern 2 is spirally wired along the peripheral surface of the cylindrical substrate 10. Thus, the coil component made of the cylindrical substrate 10 is mounted on the cylindrical member 30. The first and second connection terminals 2 a and 2 b at the ends of the wiring pattern that is spirally arranged are arranged on the outer peripheral surface of the cylindrical substrate 10.
Further, the cylindrical member 30 on which the coil component made of the cylindrical substrate 10 is mounted is fitted into a cylindrical base 20 including two connectors 21 connected to the power supply system wiring 40, and the pressure contact piece 21 a of the connector 21. Is pressed against the first and second connection terminals 2a, 2b disposed on the outer peripheral surface of the cylindrical substrate 10, whereby a coil component comprising the cylindrical substrate 10 mounted on the cylindrical member 30 is connected to the power supply system wiring 40. Can be connected to.

  In the embodiment shown in FIG. 1, a straight slit 1a formed at the center of a flat substrate, first and second circuit surfaces 11 and 12 formed with the slit 1a as a boundary, and the slit A flexible wiring board 1 having a spiral wiring pattern 2 formed around 1a is used, and both ends 13a and 13b of the board are bent by a fold line perpendicular to the left end of the slit and a fold line perpendicular to the right end. The first circuit surface 11 and the second circuit surface 12 disposed above and below the slit 1a as a boundary are curved in the same direction, and the flexible wiring board 1 is bent in two with the slit 1a as a boundary. The first and second circuit surfaces 11 and 12 are opposed to each other to form the cylindrical substrate 10 having the slit 1a opened, and wiring is performed along the peripheral surface of the cylindrical substrate 10. Producing a coil component in which wire the turns 2 spirally.

A flexible wiring board 1 shown in FIG. 1 includes a base substrate made of an insulating material, a wiring pattern 2 made of a conductive material spirally formed on the surface thereof, and a cover film made of an insulating material coated thereon. Consists of. Further, first and second connection terminals 2 a and 2 b are formed at both ends of the wiring pattern 2 so that the cover film is not covered and the conductive material is exposed.
In this embodiment, the first connection terminal 2a and the second connection terminal 2b formed at the end of the spirally formed wiring pattern 2 are arranged on the same circuit surface (second circuit surface 12), and the two The connection terminals 2a and 2b are arranged at close positions.

Further, in this embodiment, as shown in FIG. 2, the coil member made of the cylindrical substrate 10 is mounted on the cylindrical member 30 by arranging the cylindrical member 30 such as a vehicle-mounted cup holder inside the slit 1 a.
As shown in FIG. 2 (a), two cylindrical bases 20 for arranging a cylindrical member 30 mounted with coil parts made of a cylindrical substrate 10 are connected to a power supply system wiring 40 on the vehicle body side. A connector 21 and board engagement grooves 22a and 22b for engaging projections (both board ends 13a and 13b) formed on the cylindrical board 10 fitted in the cylindrical base 20 are provided.
In the cylindrical substrate 10 formed by arranging the cylindrical member 30 inside the slit 1a, the first and second circuit surfaces 11 and 12 arranged with the slit 1a as a boundary are curved to form a cylindrical shape, Both ends (substrate ends 13a and 13b) of the slit 1a protrude. Therefore, substrate engagement grooves 22a and 22b for engaging the substrate ends 13a and 13b, respectively, are formed on the cylindrical base 20, respectively.
As shown in FIG. 2 (b), the two connectors 21 formed on the cylindrical base 20 are each connected to a cable connecting portion 21b for connecting the power supply system wiring 40 and the first or first coil component. The press contact piece 2a for press contact with the two connection terminals 2a and 2b is formed, and the press contact piece 2a is disposed on the inner peripheral surface of the cylindrical base 20.

Then, the cylindrical member 30 on which the coil component made of the cylindrical substrate 10 is mounted is disposed on the cylindrical base 20, and the coil component made of the cylindrical substrate 10 is fitted into the cylindrical base 20, thereby the cylindrical shape. The first and second connection terminals 2a and 2b formed on the outer peripheral surface of the substrate 10 are pressure-bonded to the pressure contact piece 21a of the connector 21 disposed on the inner peripheral surface of the cylindrical base 20, and the connector The power supply system wiring 40 on the vehicle body side connected to 21 and the coil component made of the cylindrical substrate 10 mounted on the cylindrical member 30 were connected.
In addition, the coil component which consists of the cylindrical board | substrate 10 is arrange | positioned so that it may be pinched | interposed into the cylindrical member 30 and the cylindrical base 20, and the press-contacting piece 21a arrange | positioned at the internal peripheral surface of the said cylindrical base 20 is a cylinder. The first and second connection terminals 2a and 2b arranged on the outer peripheral surface of the mold substrate 10 are pressed into contact with each other.

Next, a connection structure for coil parts according to a second embodiment of the present invention will be described with reference to FIGS.
In this embodiment, a flexible flat cable 1 ′ having a plurality of parallel wiring patterns 2 is used, and the flexible flat cable 1 ′ is wound around the outer periphery of a tubular member 30 such as an in-vehicle cup holder to thereby form the tubular substrate 10. By forming and connecting the connection terminals 2c formed at both ends of the flexible flat cable by shifting one by one, the wiring pattern 2 is spiraled along the peripheral surface of the cylindrical substrate 10 Wired coil parts were manufactured.

A flexible flat cable 1 ′ shown in FIG. 3A is composed of a base substrate made of an insulating material, a plurality of parallel wiring patterns 2 made of a conductive material formed on the surface thereof, and insulation covered thereon. It consists of a coverlay film made of material. Further, both ends of the plurality of front air wiring patterns 2 are not covered with an insulating material, and are formed with connection terminals 2c where the conductive material is exposed.
In this embodiment, as shown in FIG. 3 (b), a flexible flat cable 1 'folded at both ends upward is wound around the outer peripheral surface of the cylindrical member 30, and the right end of the flexible flat cable 1' folded upward is wound. The flexible flat cable 1 ′ is formed into a cylindrical shape by adhering both ends so that the left end of the flexible flat cable 1 ′ is overlapped thereon, and the connection terminal 2c formed at the right end of the flexible flat cable 1 ′. And the connection terminals 2c formed at the left end are shifted one by one to connect a plurality of parallel wiring patterns 2 in a spiral manner, and the wiring patterns are arranged along the peripheral surface of the cylindrical substrate 10. Coil parts wired in a spiral were manufactured. In addition, first and second connection terminals 2 a and 2 b arranged on the outer peripheral surface of the cylindrical substrate 10 were formed at the end of the wiring pattern 2 wired in a spiral shape.

As shown in FIG. 4A, a coil component made of a cylindrical substrate 10 is mounted on the outer periphery of the cylindrical member 30 by winding a flexible flat cable 1 'around the outer periphery of the cylindrical member 30 such as an in-vehicle cup holder. In the same manner as in the first embodiment, the cylindrical member 30 on which the coil component is mounted is disposed on a cylindrical base 20 ′ having two connectors 21 connected to the power supply wiring 40 on the vehicle body side. The first and second connection terminals 2a and 2b arranged on the outer peripheral surface of the cylindrical substrate 10 are connected to the cylindrical base by fitting a coil component made of the cylindrical substrate 10 inside the mold base 20 '. The coil part made of the cylindrical substrate 10 was connected to the power supply wiring 40 by being pressed against the connector pressure contact piece 21 a disposed on the inner peripheral surface of 20 ′.
In this embodiment, unlike the coil component according to the first embodiment, no protruding portions (both substrate ends 13a and 13b) are formed on the cylindrical substrate 10. Therefore, the cylindrical member 30 on which the coil component according to this embodiment is mounted is disposed. Substrate engaging grooves 22a and 22b are not formed in the cylindrical base 20.
As shown in FIG. 4B, the two connectors 21 formed on the cylindrical base 20 'are connected to the cable connecting portions 21b for connecting the power supply wirings 40, respectively, as in the first embodiment. And a press contact piece 2a for press contact with the first or second connection terminal 2a, 2b of the coil component, and the press contact piece 2a is disposed on the inner peripheral surface of the cylindrical base 20.

Next, a connection structure for coil parts according to a third embodiment of the present invention will be described with reference to FIGS.
As in the second embodiment, this embodiment uses a flexible flat cable 1 ′ having a plurality of parallel wiring patterns 2, and the flexible flat cable 1 ′ is used as an outer periphery of a cylindrical member 30 such as an in-vehicle cup holder. The cylindrical substrate 10 is formed by being wound around, and the connection terminals 2c formed at the left and right ends of the flexible flat cable 1 'are shifted and connected one by one so as to follow the peripheral surface of the cylindrical substrate 10. A coil component in which the wiring pattern 2 is spirally wired is manufactured. And the coil component is connected to the power supply system wiring 40 on the vehicle body side by arranging the cylindrical member 30 on which the coil component is mounted on the cylindrical base 20 ″.
In the embodiment shown in FIG. 5, the left and right ends of the flexible flat cable 1 ′ wound around the cylindrical member 30 are respectively inserted into the board insertion holes 23 a of the connector portion 23 formed on the inner peripheral surface of the cylindrical base 20 ″. , 23b, the left and right ends of the flexible flat cable 1 ′ are fixed so as to overlap each other, and the right end connection terminal 2c of the flexible flat cable 1 ′ and the left end connection terminal 2c of the flexible flat cable are connected to each other. The coil parts made of the cylindrical base 10 plates are manufactured by shifting the connections one by one.

FIG. 6 is a view showing the connector portion 23 formed on the inner peripheral surface of the cylindrical base 20 ″ shown in FIG.
The connector part 23 includes a board insertion hole 23a into which the left end of the flexible flat cable 1 'is inserted and a board insertion hole 23b into which the right end is inserted, and the flexible flat cable inserted into the board insertion holes 23a and 23b. 1 'is arranged so that the connection terminals on both the left and right ends are opposed to each other with a shift.
The connector part 23 is provided with a wiring connection connector 24 for conducting the connection terminals at both the left and right ends of the flexible flat cable 1 ′ that is shifted and opposed one by one, and each of the left and right ends through the wiring connection connector 24. Connection terminals are connected, and a plurality of parallel wiring patterns 2 of the flexible flat cable 1 ′ are spirally wired. The wiring connection connector 24 is formed with two pressure contact pieces, ie, a pressure contact piece 24a pressed against the rightmost connection terminal of the flexible flat cable 1 'and a pressure contact piece 24b pressed against the left end connection terminal. The connection terminals at both ends are connected.

In addition, the connector part 23 is arranged at the ends of the wiring pattern 2 that is spirally wired by shifting the connection terminals at the left and right ends of the flexible flat cable 1 ′ one by one. Two connectors 21 for connecting the connection terminals 2a and 2b to the power supply system wiring 40 on the vehicle body side are provided. The two connectors 21 provided in the connector portion 23 are respectively a cable connection portion 21b for connecting the power supply system wiring 40 and a pressure contact piece for pressure contact with the first or second connection terminal 2a, 2b of the coil component. 2a.
That is, in this embodiment, the flexible flat cable 1 ′ is inserted into the board insertion portions 23 a and 23 b of the connector portion 23 including the two connectors 21 connected to the power supply system wiring 40, respectively. The first connection terminal 2 a at the right end of the cable 1 ′ is pressed against the pressure contact piece 21 a of one connector 21, and the second connection terminal 2 b at the left end of the flexible flat cable 1 ′ is connected to the pressure contact piece 21 a of the other connector 21. The coil parts made of the cylindrical substrate 10 were connected to the power supply system wiring 40 by pressure contact.

FIG. 7 is a view showing a modified example of the cylindrical base 20 ″ shown in FIG.
The cylindrical base 20 ″ shown in FIG. 7 is configured so that the connector portion 23 can be detachably attached to the cylindrical base.
In the cylindrical base 20 ″ according to this modification, an attachment portion (engagement groove) for attaching the connector portion 23 is formed on the inner peripheral surface of the cylindrical base, and the attachment portion ( The connector part 23 was attached to the inner peripheral surface of the cylindrical base by forming an attachment part (engagement convex part) that engages with the (engagement groove) and engaging these attachment parts.

It is a figure explaining the coil components by 1st Example of this invention. It is a figure explaining the connection structure of the coil components by 1st Example of this invention. It is a figure explaining the coil components by 2nd Example of this invention. It is a figure explaining the connection structure of the coil components by 2nd Example of this invention. It is a figure explaining the connection structure of the coil components by 3rd Example of this invention. It is a figure explaining the connector part shown in FIG. It is a figure explaining the modification of the cylindrical base shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flexible wiring board 1 'Flexible flat cable 2 Wiring pattern 2a 1st connecting terminal 2b 2nd connecting terminal 2c Connecting terminal 10 Cylindrical board 20, 20', 20 "Cylindrical base 21 Connector 21a Pressure contact piece 22 Board engagement Groove 23 Connector portion 23a, 23b Substrate insertion hole 24 Wiring connector 24a Pressure contact piece 30 Tube member 40 Power supply system wiring

Claims (2)

A coil component connection structure for connecting a coil component in which a wiring pattern (2) is spirally formed on a peripheral surface of a cylindrical substrate (10) to a power supply system wiring (40),
A flexible wiring board (1) or a flexible flat cable (1 ′) is arranged along the outer peripheral surface of the cylindrical member (30) to form the cylindrical substrate (1), and the cylindrical substrate (10) is formed on the peripheral surface. A coil part formed by spirally wiring the wiring pattern (2) is mounted on the cylindrical member (30), and the wiring pattern (2) is mounted on the outer peripheral surface of the coil part including the cylindrical substrate (10). Arranging the first and second connection terminals (2a, 2b);
Furthermore, the cylindrical member (30) on which the coil component made of the cylindrical substrate (10) is mounted is fitted into a cylindrical base (20) including two connectors (21) connected to the power supply system wiring,
By pressing the pressure contact piece (21a) of the connector (21) to the first and second connection terminals (2a, 2b) arranged on the outer peripheral surface of the cylindrical substrate (10), the cylindrical member (30 The coil component connection structure is characterized in that the coil component mounted in (1) is connected to the power supply wiring.   The coil component connection structure according to claim 1, wherein the pressure contact piece (21a) of the connector is disposed on an inner peripheral surface of the cylindrical base (20).

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