JP2020017142A - Cable and electronic device - Google Patents

Abstract

To improve, in a cable having a wireless tag, communication performance of the wireless tag, and to provide an electronic device comprising such a cable.SOLUTION: The cable (1) comprises: coated electric wires (11a, 11b); a connector part (5) that has terminals (13a, 13b) to which the electric wires are electrically connected; and a wireless tag (100) that has a package (103) and an IC for a wireless tag (101) mounted on the package and is arranged in the connector part. The package (103) has an insulating substrate (111), a first surface conductor (121) provided on one face of the insulating substrate, a second surface conductor (122) provided on a surface of the insulating substrate on the opposite side of the first surface conductor, and a short-circuited conductor (123a) that electrically connects the first surface conductor with the second surface conductor. The second surface conductor (122) faces the electric wires (11a, 11b).SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to cables and electronic devices.

  Patent Literature 1 discloses an electronic device cable such as a communication cable or a power supply cable in which a wireless tag is built in or externally attached.

JP 2007-165154 A

  In order to attach the wireless tag to the cable, the wireless tag needs to be downsized. However, when the size of the wireless tag is reduced, it is difficult to obtain desired antenna characteristics, and there is a problem that a communicable distance with the reader / writer device is shortened. Furthermore, if the wireless tag is attached to the cable without any modification, the characteristics of the antenna of the wireless tag may change due to the influence of the electric wire in the cable, and the communication performance of the wireless tag may be deteriorated.

  An object of the present disclosure is to improve communication performance of a wireless tag in a cable having the wireless tag. Further, the present disclosure aims to provide an electronic device including such a cable.

The cable according to one embodiment of the present disclosure includes:
A coated wire;
A connector portion having a terminal to which the electric wire is electrically connected,
A package and a wireless tag IC mounted on the package, and a wireless tag disposed on the connector portion;
With
The package includes an insulating substrate, a first surface conductor provided on one surface of the insulating substrate, a second surface conductor provided on a surface of the insulating substrate opposite to the first surface conductor, A short-circuit conductor that electrically connects the first surface conductor and the second surface conductor,
The second surface conductor faces the electric wire.

  An electronic device according to one embodiment of the present disclosure is an electronic device including the above-described cable.

  According to the present disclosure, the communication performance of a wireless tag in a cable having the wireless tag can be improved. According to the present disclosure, it is possible to provide an electronic device including such a cable.

FIG. 1A is a plan view illustrating a part of the cable according to the first embodiment of the present disclosure, and FIG. 1B is a cross-sectional view illustrating the internal structure of the cable according to the first embodiment. It is the schematic diagram which looked at the internal structure of the cable of Embodiment 1 from the side. It is a top view (a), a longitudinal section (b), and a bottom view (c) showing a first example of a wireless tag mounted on a cable. FIG. 4 is an exploded perspective view of the wireless tag of FIG. 3. FIGS. 5A to 5C are schematic views of the internal structure of the cable according to Embodiments 2 to 4 of the present disclosure as viewed from the side. FIG. 15 is a diagram illustrating a part of a cable according to a fifth embodiment of the present disclosure. It is a top view (a), a longitudinal section (b), and a bottom view (c) which show the 2nd example of a wireless tag carried in a cable. FIG. 8 is an exploded perspective view of the wireless tag of FIG. 7. It is a longitudinal section showing the 3rd example (a), the 4th example (b), and the 5th example (c) of a wireless tag carried in a cable. It is a longitudinal section showing the 6th example (a) and the 7th example (b) of a wireless tag carried in a cable. It is a longitudinal section showing an eighth example (a), a ninth example (b), and a tenth example (c) of a wireless tag mounted on a cable. It is a longitudinal section showing the eleventh example (a) and the twelfth example (b) of the wireless tag mounted on the cable. It is a top view (a), a longitudinal section (b), and a bottom view (c) showing the 13th example of a wireless tag carried in a cable. FIG. 14 is an exploded perspective view of the wireless tag of FIG. 13. It is a top view (a), a longitudinal section (b), and a bottom view (c) showing a 14th example of a wireless tag mounted on a cable. FIG. 16 is an exploded perspective view of the wireless tag of FIG. 15. It is a top view (a), a longitudinal section (b), and a bottom view (c) showing a fifteenth example of a wireless tag mounted on a cable. FIG. 18 is an exploded perspective view of the wireless tag of FIG. 17. It is a top view (a), a longitudinal section (b), and a bottom view (c) showing the 16th example of a wireless tag carried in a cable. FIG. 20 is an exploded perspective view of the wireless tag of FIG. 19. 1 is a diagram illustrating an electronic device according to an embodiment of the present disclosure.

  Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1A is a plan view illustrating a part of the cable according to the first embodiment of the present disclosure, and FIG. 1B is a cross-sectional view illustrating the internal structure of the cable according to the first embodiment. FIG. 2 is a schematic view of the internal structure of the cable according to the first embodiment as viewed from the side.

  The cable 1 according to the first embodiment of the present disclosure is a power cable connected to a device main body of an electronic device. The cable 1 includes a cable portion 3 having covered electric wires 11a and 11b, a first connector portion 5 on a power supply side having terminals 13a and 13b connected to the electric wires 11a and 11b, respectively, and a first connector portion 5. And a wireless tag 100 arranged. An end of the cable 1 opposite to the first connector section 5 may be provided with a second connector section detachable from the apparatus main body, or may be directly connected to the apparatus main body.

  The wireless tag 100 is an RFID (Radio Frequency Identifier) tag that has a storage unit that stores identification information and an antenna, and that can read identification information by wireless communication from an external reader / writer device. Although not particularly limited, the wireless tag 100 performs wireless communication using radio waves of a UHF (Ultra High Frequency) band frequency such as 920 MHz. The wireless tag 100 may include a storage unit to which information can be written, and may be configured to be able to write information from a reader / writer device. The wireless tag 100 does not include a battery, receives power from a reader / writer device via electromagnetic waves, and operates based on this power. Note that the wireless tag 100 may be of a type that incorporates a battery.

  As will be described in detail later, the wireless tag 100 includes a package 103 and a wireless tag IC (Integrated Circuit) 101 mounted on the package 103 as shown in FIG. The package 103 includes an insulating substrate 111, an upper conductor 121 and a lower conductor 122 provided on the upper and lower surfaces of the insulating substrate 111, a short-circuit conductor 123a, and a cavity (recess) 113, respectively. The wireless tag IC 101 is housed in the cavity 113. The wireless tag IC 101 has a storage unit that stores identification information and performs communication processing. The upper conductor 121, the lower conductor 122, and the short-circuit conductor 123a form a plate-shaped inverted-F antenna. The upper surface conductor 121 and the lower surface conductor 122 are plate-shaped conductors, and their plate surfaces face each other. The short-circuit conductor 123a is connected to the upper conductor 121 and the lower conductor 122, and electrically short-circuits them. The short-circuit conductor 123a is connected closer to one edge of the lower conductor 122 than to the center of the lower conductor 122 on the plate surface. In the first embodiment, the upper surface conductor 121 corresponds to an example of a first surface conductor in the present disclosure, and the lower surface conductor 122 corresponds to an example of a second surface conductor in the present disclosure. The side of the wireless tag 100 closer to the short-circuit conductor 123a is hereinafter referred to as the short-circuit conductor 123a side.

  The wireless tag 100 is built in the first connector section 5 as shown in FIG. The first connector portion 5 is an insert molded product, and the wireless tag 100, the bases of the terminals 13a and 13b, and the covered electric wires 11a and 11b are embedded in the mold resin 15.

  In the wireless tag 100, the plate surface of the lower conductor 122 faces the wires 11a and 11b, the opening of the cavity 113 faces the opposite side of the wires 11a and 11b, and the short-circuit conductor 123a faces the terminals 13a and 13b. , Is located. As shown in FIG. 1B, the wireless tag 100 is arranged at a portion where the electric wires 11a and 11b are not branched, but may be arranged so as to face one of the branched electric wires 11a and 11b.

<First example of wireless tag>
FIG. 3 is a plan view (a), a longitudinal sectional view (b), and a bottom view (c) showing a first example of a wireless tag mounted on a cable. FIG. 4 is an exploded perspective view of the wireless tag of FIG. 3 and 4 show orthogonal coordinates x, y, and z fixedly defined in the wireless tag 100. The z direction is also referred to as the height direction of the wireless tag 100. The height referred to here is only for convenience and does not need to coincide with the actual height direction when the cable 1 is used.

  The wireless tag 100 includes a package 103 and a wireless tag IC 101 housed in the package 103, as shown in FIGS. The package 103 includes an insulating substrate 111, a cavity 113, an upper conductor 121, a lower conductor 122, a short-circuit conductor 123a, interlayer conductors 123b and 123c, and connection pads 124a and 124b. Among these, in FIG. 4, the locations where the short-circuit conductor 123a and the interlayer conductors 123b and 123c pass are indicated by chain lines and broken lines.

  The insulating substrate 111 is a dielectric made of ceramic. The insulating substrate 111 has a first main surface 111a that extends in the xy direction on one side, and a second main surface 111b that expands in the xy direction on the opposite side, and has a height (length in the z direction) of width. It has a rectangular parallelepiped shape shorter than the dimension (length in the x direction) and the depth dimension (length in the y direction). Further, the insulating substrate 111 includes a concave cavity 113 opened in the first main surface 111a. The insulating substrate 111 is, for example, a dielectric such as an aluminum oxide sintered body, an aluminum nitride sintered body, a mullite sintered body, or a glass ceramic sintered body. It can be formed by stacking and sintering sheets.

  The wireless tag IC 101 is housed and fixed in the cavity 113. Connection pads 124a and 124b, which are conductors, are provided on the bottom inner surface of the cavity 113. The connection pads 124a and 124b are electrically connected to two terminals of the wireless tag IC 101 via bonding wires and the like.

  The upper surface conductor 121 is a plate-shaped conductor, and is provided over substantially the entire area of the first main surface 111 a of the insulating substrate 111 except for the opening of the cavity 113. The upper surface conductor 121 acts as a radiation conductor of the plate-shaped inverted-F antenna.

  The lower conductor 122 is a plate-shaped conductor, and is provided over substantially the entire area of the second main surface 111 b of the insulating substrate 111. The lower conductor 122 functions as a ground conductor (also referred to as a ground plane) of the plate-shaped inverted-F antenna.

  The upper surface conductor 121 and the lower surface conductor 122 may be formed by printing a metal paste at a corresponding position on the ceramic green sheet using a method such as screen printing while the insulating substrate 111 is a ceramic green sheet, and sintering them together. Can be formed. As the metal paste, for example, a material in which copper powder is mixed with an organic solvent and an organic binder can be used. The exposed surfaces of the upper conductor 121, the lower conductor 122, and the connection pads 124a and 124b may be covered with a plating layer of nickel, cobalt, palladium, gold, or the like, thereby suppressing oxidative corrosion. With respect to the connection pads 124a and 124b, the bonding characteristics of the bonding wires can be improved by coating the plating layer.

  The short-circuit conductor 123a passes between the first main surface 111a and the second main surface 111b of the insulating substrate 111 in the z-direction, and electrically connects the upper conductor 121 and the lower conductor 122. The short-circuit conductor 123 a is provided at a position closer to one end of the upper surface conductor 121 in the longitudinal direction (x direction) than the cavity 113. The short-circuit conductor 123a has a smaller width in the x-direction and the y-direction than the upper conductor 121 and the lower conductor 122, and is, for example, pin-shaped. The package 103 may be provided with a plurality of short-circuit conductors 123a, or may be provided with only one short-circuit conductor 123a.

  The interlayer conductor 123b is passed through the insulating substrate 111 in the z direction, and electrically connects one connection pad 124a of the cavity 113 to the lower conductor 122. The other interlayer conductor 123c is passed through the insulating substrate 111 in the z direction, and electrically connects the other connection pad 124b of the cavity 113 and the upper surface conductor 121. The interlayer conductor 123b functions as a ground line of the wireless tag IC 101, and the other interlayer conductor 123c functions as a feed line of the antenna.

  The short-circuit conductor 123a and the interlayer conductors 123b and 123c are provided with through-holes or interlayer holes at corresponding portions of the ceramic green sheet when the insulating substrate 111 is a ceramic green sheet, filled with a metal paste, and fired together. It can be formed by tying. Similar to the material of the upper surface conductor 121, for example, a material in which copper powder is mixed with an organic solvent and an organic binder can be used as the metal paste.

<Effects of Embodiment>
As described above, according to the cable 1 of the first embodiment, the wireless tag 100 is disposed in the first connector unit 5. Thus, various management of the cable 1 or the electronic device having the cable 1 can be performed by wireless communication between the reader / writer device and the wireless tag 100.

  Further, according to the cable 1 of the first embodiment, the wireless tag 100 includes the package 103 having the insulating substrate 111, the upper conductor 121, the lower conductor 122, and the short-circuit conductor 123 a, and the wireless tag IC 101 mounted on the package 103. Have. Further, the wireless tag 100 is arranged such that the plate surface of the lower surface conductor 122 faces the electric wires 11 a and 11 b of the cable 1. With these configurations, the antenna gain of the wireless tag 100 is improved, and the communicable distance between the wireless tag 100 and the reader / writer device can be increased. In the configuration of the first embodiment, the lower conductor 122 and the electric wires 11a and 11b are capacitively coupled by disposing the lower conductor 122 so as to face the electric wires 11a and 11b. Accordingly, the electric wires 11a and 11b function as auxiliary antennas of the wireless tag 100, so that the antenna characteristics are improved. Further, according to the above configuration, it is not necessary to electrically connect the wireless tag 100 to any metal or the like in the cable 1 in order to improve the antenna characteristics, and the cost for incorporating the wireless tag 100 into the cable 1 can be reduced. .

  Further, according to the cable 1 of the first embodiment, the insulating substrate 111 of the wireless tag 100 is made of ceramic, and the wireless tag 100 is embedded in the molding resin of the first connector portion 5. By being embedded in the mold resin, the wireless tag 100 is inconspicuous, the wireless tag 100 is hardly separated from the cable 1, and the effect of improving the resistance of the wireless tag 100 to an external impact is obtained. Further, since the wireless tag 100 has the insulating substrate 111 made of a ceramic material, it is resistant to heat and sufficiently withstands resin insert molding. Thereby, the wireless tag 100 can be easily embedded in the mold resin.

  Further, according to the cable 1 of the first embodiment, the wireless tag 100 is disposed in the first connector section 5 on the power supply side, and the short-circuit conductor 123a faces the terminals 13a and 13b. With such a configuration, the antenna characteristics of the wireless tag 100 can be further improved, and the communicable distance with the reader / writer device can be increased. Generally, when a cable is connected to an electronic device, a power outlet, or the like, relatively good grounding characteristics can be obtained on the terminal side of the connector on the power supply side. Therefore, by arranging the wireless tag 100 with the short-circuit conductor 123a facing this side, the ground reference of the wireless tag 100 and the cable 1 becomes the same, so that the wireless tag 100 and the cable 1 can be efficiently coupled together It is presumed that the mirror image effect of the plate-like inverted-F antenna of the wireless tag 100 is favorably obtained, and that the antenna characteristics of the wireless tag 100 are improved.

  Further, according to the cable 1 of the first embodiment, the opening of the cavity 113 in which the RFID tag IC 101 is accommodated faces the opposite side of the electric wires 11a and 11b. Thus, it is possible to suppress noise from being applied to the wireless tag IC 101 due to the current flowing through the electric wires 11a and 11b.

(Embodiments 2 to 4)
FIGS. 5A to 5C are schematic views of the internal structure of the cable according to Embodiments 2 to 4 of the present disclosure as viewed from the side.

  The cables 1A to 1C of the second to fourth embodiments are the same as the cable 1 of the first embodiment except that the direction of the wireless tag 100 is different. The same components are denoted by the same reference numerals, and detailed description is omitted.

  In the cable 1A of the second embodiment, as shown in FIG. 5A, the short-circuit conductor 123a faces the side opposite to the terminals 13a and 13b. Even when the wireless tag 100 is arranged in this way, since the lower surface conductor 122 faces the electric wires 11a and 11b, the electric wires 11a and 11b function as auxiliary antennas of the wireless tag 100. The characteristics are improved, and the communicable distance with the reader / writer device can be extended.

  In the cable 1B of the third embodiment, as shown in FIG. 5B, the upper surface conductor 121 faces the electric wires 11a and 11b, and the cavity 113 faces the electric wires 11a and 11b. In the second embodiment, the upper surface conductor 121 corresponds to an example of a second surface conductor in the present disclosure, and the lower surface conductor 122 corresponds to an example of a first surface conductor in the present disclosure.

  Further, in the cable 1B of the third embodiment, the short-circuit conductor 123a of the wireless tag 100 faces the terminals 13a and 13b. When the wireless tag 100 is arranged in this manner, for example, the lower conductor 122 acts as a radiation conductor, the upper conductor 121 acts as a ground conductor, and the upper conductor 121 faces the electric wires 11a and 11b. Antenna characteristics can be improved. Thereby, the communicable distance with the reader / writer device can be extended. Further, since the short-circuit conductor 123a faces the terminals 13a and 13b, the antenna characteristics of the wireless tag 100 are further improved, and the communicable distance with the reader / writer device can be further increased.

  In the cable 1C according to the fourth embodiment, as shown in FIG. 5C, the upper surface conductor 121 faces the wires 11a and 11b, and the cavity 113 faces the wires 11a and 11b. In the second embodiment, the upper surface conductor 121 corresponds to an example of a second surface conductor in the present disclosure, and the lower surface conductor 122 corresponds to an example of a first surface conductor in the present disclosure. When the wireless tag 100 is arranged in this manner, for example, the lower conductor 122 acts as a radiation conductor, the upper conductor 121 acts as a ground conductor, and the upper conductor 121 faces the electric wires 11a and 11b. Antenna characteristics can be improved. Thereby, the communicable distance with the reader / writer device can be extended.

(Embodiment 5)
FIG. 6 is a diagram illustrating a part of the cable according to the fifth embodiment of the present disclosure.

  The cable 1D of the fifth embodiment is a cable for connecting an electronic device as a peripheral device and an electronic device as a parent device. The cable 1D transmits a communication signal between the peripheral device and the parent device, and transmits power from the parent device to the peripheral device. The cable 1D has a first connector portion 5D connected to the parent device, a cable portion 3D having the covered electric wires 11c to 11f, and a wireless tag 100 arranged on the first connector portion 5D. An end of the cable 1D opposite to the first connector 5D may be provided with a second connector detachable from a peripheral device, or may be directly connected to the peripheral device. The parent device may be, for example, a computer, a power supply, or the like. The peripheral device may be an input device such as a mouse or a keyboard, a communication device, a multimedia device, or the like.

  The wireless tag 100 has a configuration similar to that of the first embodiment. The wireless tag 100 is built in the first connector section 5D as shown in FIG. The first connector portion 5D is an insert molded product, and the wireless tag 100, the base of the terminal 13D, and the covered electric wires 11c to 11f are embedded in the mold resin 15D.

  The wireless tag 100 is configured such that the plate surface of the lower conductor 122 faces the wires 11c to 11f, the opening of the cavity 113 faces the opposite side of the wires 11c and 11f, and the short-circuit conductor 123a faces the terminal 13D. Are located. The wireless tag 100 is arranged at a portion where the electric wires 11c to 11f are not branched, but may be arranged to face any one or more of the branched electric wires 11c to 11f.

  Also in the cable 1D of the fifth embodiment configured as described above, the communicable distance between the wireless tag 100 and the reader / writer device can be extended by the same operation as the first embodiment. Further, also in the cable 1D of the fifth embodiment, as in the second to fourth embodiments, the orientation of the wireless tag 100 may be changed and arranged, whereby the same operation and effect as those of the second to fourth embodiments are achieved. You.

(Configuration example of wireless tag)
The cables 1, 1 </ b> A to 1 </ b> D according to the first to fifth embodiments are similar to the wireless tags 100 according to the second to sixteenth examples described below, instead of the wireless tags 100 according to the first example. You may have. Subsequently, the wireless tags 100A to 100O of the second to sixteenth examples will be described. 7 to 20 show the same rectangular coordinates x, y, and z as those in FIGS.

<Second example>
FIG. 7 is a plan view (a), a longitudinal sectional view (b), and a bottom view (c) showing a second example of the wireless tag. FIG. 8 is an exploded perspective view of the wireless tag of FIG. In FIG. 8, the locations where the short-circuit conductor 123a and the interlayer conductors 123b, 123d, 123e pass are indicated by chain lines and broken lines.

  The wireless tag 100A of the second example is mainly different in that a capacitive conductor 125 is added to the configuration of the first example. The capacitance conductor 125 corresponds to an example of a capacitance surface conductor according to the present disclosure. The same components as those in the first example are denoted by the same reference numerals as those in the first example, and detailed description is omitted.

  The capacitance conductor 125 is a plate-shaped conductor provided in an intermediate layer between the first main surface 111a and the second main surface 111b of the insulating substrate 111. Is configured. With this capacitance, the size of the wireless tag 100A can be further reduced while maintaining the characteristics of the antenna. The interlayer distance between the capacitive conductor 125 and the lower conductor 122 is shorter than the interlayer distance between the capacitive conductor 125 and the upper conductor 121. The capacitance conductor 125 can be formed as follows. First, at the stage of a sheet-like ceramic green sheet in which the insulating substrate 111 is separated into a plurality of layers, the above-described metal paste is provided on a corresponding intermediate layer of the ceramic green sheet by screen printing or the like. Thereafter, a plurality of ceramic green sheets are stacked, and the metal paste is sintered together with the ceramic green sheets. Thereby, the capacitance conductor 125 can be formed in the intermediate layer of the insulating substrate 111.

  Capacitance conductor 125 is electrically connected to one connection pad 124b via interlayer conductor 123d, and electrically connected to upper surface conductor 121 via interlayer conductor 123e. The interlayer conductors 123d and 123e can be formed in the same manner as the short-circuit conductor 123a or the interlayer conductor 123b described above.

  When the wireless tag 100A of the second example is mounted on the first connector portions 5 and 5D, the lower surface conductor 122 faces the electric wires 11a to 11f and acts as a ground conductor. The upper surface conductor 121 functions as a radiation conductor. In addition, the wireless tag 100A of the second example may be arranged such that the upper surface conductor 121 faces the electric wires 11a to 11f. In this case, the lower conductor 122 acts as a radiation conductor, and the upper conductor 121 acts as a ground conductor.

  As described above, according to the cable of the embodiment on which the wireless tag 100A of the second example is mounted, the wireless tag 100A is further downsized while maintaining the antenna characteristics by the capacitive conductor 125. Therefore, the ease of mounting the wireless tag 100A on the first connector units 5, 5D can be further improved.

<Third to twelfth examples>
FIG. 9 is a longitudinal sectional view showing a third example (a), a fourth example (b), and a fifth example (c) of the wireless tag. FIG. 10 is a longitudinal sectional view showing a sixth example (a) and a seventh example (b) of the wireless tag. FIG. 11 is a longitudinal sectional view showing an eighth example (a), a ninth example (b), and a tenth example (c) of the wireless tag. FIG. 12 is a longitudinal sectional view showing an eleventh example (a) and a twelfth example (b) of the wireless tag. In these drawings, the same components as those of the wireless tags 100 and 100A of the first and second examples are denoted by the same reference numerals.

  The third to eleventh examples relate to the electrical connection between the upper surface conductor 121, the lower surface conductor 122, the connection pads 124a and 124b, and the capacitance conductor 125, the position and the presence or absence of the capacitance conductor 125, and some detailed structures. This is a modified example of

  The wireless tag 100B of the third example (FIG. 9A) is an example in which the upper surface conductor 121 is connected to one connection pad 124b and the capacitor conductor 125 via interlayer conductors 123c and 123e, respectively.

  The wireless tag 100C of the fourth example (FIG. 9B) is an example in which the capacitance conductor 125 is omitted and one connection pad 124a is connected to the short-circuit conductor 123a via the connection conductor 127. The connection conductor 127 extends in the x direction between the layers of the insulating substrate 111.

  The wireless tag 100D of the fifth example (FIG. 9C) is an example in which the capacitance conductor 125 is omitted and both connection pads 124a and 124b are connected to the upper surface conductor 121 via the interlayer conductors 123c and 123f.

  The wireless tag 100E of the sixth example (FIG. 10A) is an example in which the short-circuit conductor 123a connecting the upper conductor 121 and the lower conductor 122 is arranged near the end far from the cavity 113.

  The wireless tag 100F of the seventh example (FIG. 10B) is an example in which the capacitive conductor 125 is provided at a position overlapping the cavity 113 when viewed in the z direction. The wireless tag 100F of the seventh example is an example in which the cavity 113 accommodating the wireless tag IC 101 is filled with a sealing material 131 such as a resin and the opening is sealed. The configuration for sealing the opening of the cavity 113 can be similarly applied to the wireless tags 100, 100A to 100E, and 100G to 100O of the first to sixth examples and the eighth to sixteenth examples. When the opening of the cavity 113 is sealed, the upper surface conductor 121 may be provided including the upper part of the opening of the cavity 113.

  In the wireless tag 100G of the eighth example (FIG. 11A), the capacitor conductor 125 is provided at a position overlapping the cavity 113 in the z direction, while one connection pad 124a is connected to the capacitor conductor 125 via the interlayer conductor 123h. This is an example.

  The wireless tag 100H of the ninth example (FIG. 11B) has a capacitive conductor 125 overlapping the cavity 113 in the z-direction, and one via a connection conductor 128 extending in the x-direction between the layers of the insulating substrate 111. This is an example in which the connection pad 124b and the short-circuit conductor 123a are connected.

  In the wireless tag 100I of the tenth example (FIG. 11C), the capacitor conductor 125 is provided at a position overlapping the cavity 113 in the z direction, while the two connection pads 124a and 124b are provided on the upper surface via the interlayer conductors 123f and 123c. This is an example of connection to a conductor 121.

  The wireless tag 100 </ b> J of the eleventh example (FIG. 12A) is an example in which the capacitance conductor 125 is configured to face the lower surface conductor 122 with a large area.

  In the wireless tag 100K of the twelfth example (FIG. 12B), a plate-like internal ground conductor 129 connected to the lower conductor 122 and the upper conductor 121 via the short-circuit conductor 123i is provided between the layers of the insulating substrate 111. This is an example. In the wireless tag 100K, the capacitance conductor 125 is disposed so as to face the lower surface conductor 122 and the internal ground conductor 129 so that a large capacitance is formed.

  In the cables in which the wireless tags 100B to 100K of the third to twelfth examples are mounted, the same operation and effect as those of the first to fifth embodiments can be obtained.

<Thirteenth example>
FIG. 13 is a plan view (a), a longitudinal sectional view (b), and a bottom view (c) showing a thirteenth example of a wireless tag mounted on a cable. FIG. 14 is an exploded perspective view of the wireless tag of FIG.

  The wireless tag 100L of the thirteenth example is an example in which a coil conductor for current detection or power generation is added to the wireless tag 100A of the second example having the capacitive conductor 125. The same components as those in the second example are denoted by the same reference numerals as those in the second example, and detailed description is omitted.

  The wireless tag 100L of the thirteenth example includes, in addition to the components of the second example, wiring conductors 126a, 126b, 126c of a plurality of layers and interlayer conductors connecting these. These constitute the coil 126L. Further, the wireless tag 100L includes connection pads 124c and 124d for connecting the coil 126L and the wireless tag IC 101.

  In the insulating substrate 111, areas for forming the wiring conductors 126a to 126c are secured around the entire upper surface conductor 121. This region is secured over all layers of the insulating substrate 111 in the z direction.

  The wiring conductor 126a is provided so as to go around the upper surface conductor 121. As shown in FIG. 14, the second-layer and third-layer wiring conductors 126b and 126c are provided in the same region as the first-layer wiring conductor 126a so as to circulate similarly to the wiring conductor 126a. ing.

  The interlayer conductor of the coil 126L is provided at a position indicated by a chain line and broken lines L123j to L123m in FIG. The interlayer conductors can be formed in the same manner as the above-described interlayer conductors 123b to 123e, except for the arrangement. The interlayer conductor connects the ends of the wiring conductors 126a to 126c, thereby forming a coil 126L in which a plurality of linear conductors are wound in the same direction.

  The connection pads 124c and 124d are provided so as to be partially exposed on the inner surface of the bottom of the cavity 113. One end and the other end of the coil 126L are electrically connected to the connection pads 124c and 124d via, for example, an interlayer conductor. The connection pads 124c and 124d can be formed in the same manner as the connection pads 124a and 124b for the antenna.

  The wireless tag IC 101 has a signal detection terminal separately from the antenna terminal, and is electrically connected to the connection pads 124c and 124d via, for example, a bonding wire.

  As described above, according to the cable in which the wireless tag 100L of the thirteenth example is mounted, when a change in current occurs in the wires 11a to 11f of the cable, the coil changes due to a change in the magnetic field generated around the wires 11a to 11f. An electromotive force is generated at 126L. Thereby, the wireless tag 100L can detect a change in the current of the electric wires 11a to 11f. Therefore, at the time of wireless communication between the reader / writer device and the wireless tag 100L, the wireless tag 100 detects the operating status of the electronic device connected to the cable, and sends the operating status information from the wireless tag 100 to the reader / writer device. Can be. Based on the operation status information, the management system connected to the reader / writer device can manage the operation status of the electronic device.

<Modified example of coil application>
The coil 126L may be used not only for detecting the operation status of the electronic device, but also for receiving the operating power of the wireless tag IC 101. In this case, the wireless tag IC 101 may include a capacitance or the like that accumulates electric power at a terminal connected to the connection pads 124c and 124d. The wireless tag IC 101 accumulates electric power in the capacitance by the electromotive force generated in the coil 126L, and operates using this electric power.

  According to the cable on which the wireless tag 100L having such a configuration is mounted, when a change occurs in the current of the wires 11a to 11f of the cable, an electromotive force is applied to the coil 126L due to a change in the magnetic field generated around the wires 11a to 11f. Occurs. Then, the wireless tag 100L accumulates the electromotive force and becomes operable using the accumulated electric power. By increasing the operating power of the wireless tag 100, the transmission power of the wireless tag 100L can be increased, and the communicable distance with the reader / writer device can be further increased.

<14th to 16th examples>
FIG. 15 is a plan view (a), a longitudinal sectional view (b), and a bottom view (c) showing a fourteenth example of a wireless tag mounted on a cable. FIG. 16 is an exploded perspective view of the wireless tag of FIG. FIG. 17 is a plan view (a), a longitudinal sectional view (b), and a bottom view (c) showing a fifteenth example of a wireless tag mounted on a cable. FIG. 18 is an exploded perspective view of the wireless tag of FIG. FIG. 19 is a plan view (a), a longitudinal sectional view (b), and a bottom view (c) showing a sixteenth example of a wireless tag mounted on a cable. FIG. 20 is an exploded perspective view of the wireless tag of FIG.

  The wireless tags 100M to 100O of the fourteenth to sixteenth examples differ from the coil 126L of the wireless tag 100L of the thirteenth example in the position or the orientation of the coils 126M to 126O.

  In the wireless tag 100M of the fourteenth example, as shown in FIGS. 15 and 16, an area not overlapping the upper conductor 121 and the lower conductor 122 is provided on one side in the x direction of the insulating substrate 111, and the coil 126M is formed here. It is. The coil 126M includes a plurality of layers of wiring conductors 126e to 126h provided in one region in the z direction and an interlayer conductor connecting these ends, and has a linear shape around a winding axis in the z direction. The conductor has a form wound multiple times. One end and the other end of the coil 126M are electrically connected to the wireless tag IC 101 via interlayer conductors and connection pads 124e and 124f.

  In the wireless tag 100N of the fifteenth example, as shown in FIGS. 17 and 18, an area that does not overlap the upper conductor 121 and the lower conductor 122 is provided on one side of the insulating substrate 111 in the y direction, and the coil 126N is formed here. It is. The coil 126N includes wiring conductors 126j and 126k provided in one region in the y direction and on the upper and lower surfaces of the insulating substrate 111, and an interlayer conductor connecting these ends, and a winding axis in the y direction. Has a form in which a plurality of linear conductors are wound around the center. One end and the other end of the coil 126N are electrically connected to the RFID tag IC 101 via interlayer conductors and connection pads 124g and 124h.

  As shown in FIGS. 19 and 20, the wireless tag 100O of the sixteenth example has a region in which the upper surface conductor 121 and the lower surface conductor 122 do not overlap with one another in the y direction of the insulating substrate 111, and in which the coil 126O is formed. It is. The coil 126O includes a plurality of layers of wiring conductors 126m to 126p provided in one region in the y direction and an interlayer conductor connecting these ends, and has a linear shape around a winding axis in the z direction. The conductor has a form wound multiple times. One end and the other end of the coil 126O are electrically connected to the wireless tag IC 101 via interlayer conductors and connection pads 124i and 124j. The coil 126O formed in this direction has an effect that it is easy to secure a large area through which magnetic flux passes inside the wiring conductors 126m to 126p.

  As described above, according to the cables in which the wireless tags 100M to 100O of the fourteenth to sixteenth examples are mounted, the current of the electric wires 11a to 11f of the cables is reduced by the coils 126M, 126N, 126O of the wireless tags 100M to 100O. Changes can be detected. This makes it possible to manage the operation status of the electronic device connected to the cable.

  Alternatively, according to the cable in which the wireless tags 100M to 100O of the fourteenth to sixteenth examples are mounted, power is received by the coils 126M, 126N, 126O of the wireless tags 100M to 100O, and the operation of the wireless tags 100M to 100O is performed. It can be used as electric power. Thereby, the transmission power of the wireless tag 100L can be increased, and the communicable distance with the reader / writer device can be further increased.

(Electronic equipment)
FIG. 21 is a diagram illustrating an electronic device according to an embodiment of the present disclosure. The electronic device 200 according to the embodiment includes the device main body 201 and the cable 1 according to the first embodiment. The cable 1 and the device main body 201 may be configured to be detachably connected, or may be configured to be directly connected. The cable 1 may be replaced with the cables 1A to 1D of another embodiment described above. The wireless tags 100 mounted on the cables 1, 1A to 1D may be replaced with the wireless tags 100A to 100O described above.

  According to the electronic device 200 of the present embodiment, various managements of the electronic device 200 can be performed using the information read or written from the wireless tag 100 provided on the cable 1. When a wireless tag is built in the device main body 201 of the electronic device 200, good communication may not be performed between the wireless tag and the reader / writer device depending on the orientation of the device main body 201 or the like. However, according to the electronic device 200 of the embodiment, since the wireless tag 100 is incorporated in the cable 1 in the above-described manner, good communication between the wireless tag 100 and the reader / writer device is realized.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, the example in which the wireless tag is provided in the connector portion on the power supply side of the cable has been described. However, the wireless tag may be provided in the connector on the power output side of the cable, or may be provided in the connector of a cable that does not transmit power. Further, in the above-described embodiment, the example in which the wireless tag is embedded in the mold resin of the connector portion has been described. However, the wireless tag may be built in the assembly type connector portion, or may be attached to the outer peripheral portion of the connector portion. You may. Other details shown in the embodiments can be appropriately changed without departing from the spirit of the invention.

1, 1A to 1D cable 3, 3D cable part 5, 5D First connector part 11a to 11f Electric wire 13a, 13b, 13D terminal 15, 15D Mold resin 100, 100A to 100O Wireless tag 101 Wireless tag IC
103 Package 111 Insulating substrate 113 Cavity (recess)
121 Upper surface conductor (first surface conductor)
122 Lower surface conductor (second surface conductor)
123a, 123i Short-circuit conductor 125 Capacitance conductor (surface conductor for capacitance)
126L to 126O coil 200 electronic device 201 device main body

Claims (8)

A coated wire;
A connector portion having a terminal to which the electric wire is electrically connected,
A package and a wireless tag IC mounted on the package, and a wireless tag disposed on the connector portion;
With
The package includes an insulating substrate, a first surface conductor provided on one surface of the insulating substrate, a second surface conductor provided on a surface of the insulating substrate opposite to the first surface conductor, A short-circuit conductor that electrically connects the first surface conductor and the second surface conductor,
The second surface conductor faces the electric wire,
cable. The package further includes a capacitive surface conductor disposed between the first surface conductor and the second surface conductor,
The capacitance surface conductor is opposed to one of the first surface conductor and the second surface conductor and is electrically connected to the other.
The cable according to claim 1. The insulating substrate is ceramic;
The wireless tag is embedded in a mold resin of the connector portion,
The cable according to claim 1. The connector section includes a first connector section on a power supply side,
The wireless tag is arranged in the first connector portion, and one edge closer to the short-circuit conductor than the center of the second surface conductor faces the terminal side in the first connector portion.
The cable according to any one of claims 1 to 3. The insulating substrate has a recess for accommodating the wireless tag IC,
The recess is open on the side opposite to the second surface conductor,
The cable according to any one of claims 1 to 4. The insulating substrate has a coil for current detection,
The cable according to any one of claims 1 to 5. The insulating substrate has a power generation coil that supplies power to the wireless tag IC,
The cable according to any one of claims 1 to 6.   An electronic device comprising the cable according to any one of claims 1 to 7.

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