JP2009270934A - Electronic timepiece with built-in antenna and electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic timepiece with a built-in antenna improving antenna characteristics without enlarging the timepiece size. <P>SOLUTION: A radio-controlled timepiece 1 includes an elongated magnetic core 211 formed of a magnetic body, an antenna 21 equipped with a coil 212 wound around the magnetic core 211, a circuit board 80 equipped with a processing circuit carrying out various processings based on external radio information received by the antenna 21. An amorphous foil material 140 having a permeability larger than that of the circuit board 80 is provided in the circuit board 80 at a position where not superposing a coil-overlapping area 83 overlapping a coil winding part 211A and superposing a lead-overlapping area 84 overlapping a lead part 211B in a plan view viewing a plane direction of the circuit board 80. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an antenna built-in electronic timepiece capable of receiving external wireless information by an antenna, and an electronic device.

  Conventionally, an electronic timepiece with a built-in antenna such as a radio-controlled timepiece that receives external wireless information having time information from the outside by an antenna and performs processing such as time correction is known. In such an electronic timepiece with a built-in antenna, in order to improve antenna characteristics, various configurations for improving the magnetic flux collecting effect in the antenna are considered (for example, see Patent Documents 1 and 2).

  The wristwatch described in Patent Document 1 includes a built-in antenna including a laminated core portion, a winding portion in which a winding is wound around the laminated core, and end caps fixed to both ends of the laminated core portion. It is taken.

  Moreover, the wristwatch described in Patent Document 2 includes a core, a core case that houses the core, a coil that is wound around the core case, and an amorphous thin film that is attached to a position where the coil of the core is not wound. The composition with which it was equipped is taken.

JP 2005-269234 A JP 2007-184894 A

By the way, in the conventional configuration in which the end caps are attached to both ends of the laminated core portion of the antenna as described in Patent Document 1, the timepiece module is increased in size by the amount of the end cap, making it difficult to reduce the thickness and size of the timepiece. There's a problem.
Further, in the configuration in which the amorphous thin film is fixed to the core as described in Patent Document 2, there is a problem that the amorphous thin film is easily damaged when an impact is applied to the timepiece. Although it is possible to prevent the amorphous thin film from being damaged by providing a structure such as newly providing a holding member, there is a problem that the size of the timepiece is increased when such a holding member is provided.

  In view of the above problems, an object of the present invention is to provide an electronic timepiece with built-in antenna and an electronic device that can improve antenna characteristics without increasing the size of the timepiece.

  The electronic watch with a built-in antenna according to the present invention includes a longitudinal magnetic core formed of a magnetic material, and a coil wound around the magnetic core, and an antenna capable of receiving external wireless information, and receiving by the antenna. And a circuit board on which a processing circuit unit for performing various processes based on the external wireless information is formed, and the antenna built-in electronic timepiece, wherein the magnetic core is provided at a central portion in the longitudinal direction. A coil winding portion around which the coil is wound, and a pair of lead portions projecting to both ends of the coil winding portion, and the circuit board has a plan view in which the surface direction of the circuit board is viewed, From the circuit board, at a position that does not overlap the coil overlap region that overlaps the coil winding portion of the antenna and that overlaps at least a part of the lead overlap region that overlaps the pair of lead portions. Wherein the magnetic permeability is greater magnetic member provided.

According to the present invention, the magnetic member is provided at a position that does not overlap the coil overlap region on the circuit board and overlaps the lead overlap region. Here, the coil overlapping region refers to a coil facing region closest to the coil on the circuit board and a region on the side surface opposite to the coil facing region of the circuit board. Similarly, the lead overlapping region refers to a lead facing region closest to the lead portion in the circuit board and a region on the side surface opposite to the lead facing region of the circuit board. That is, the magnetic member may be provided on the surface side facing the antenna of the circuit board as long as it does not overlap the coil and overlaps a part of the lead portion in plan view. It may be provided on the opposite back side.
In such a configuration, since a magnetic member having a larger magnetic permeability than the circuit board is provided in the lead overlapping region close to the lead portion, many magnetic flux lines can be collected by this magnetic member. Magnetic flux lines can be guided from the lead portion into the magnetic core. Therefore, the magnetic flux collection effect in the antenna can be improved, and the reception characteristics can be improved. At this time, since no magnetic member is provided in the coil superposition region, the magnetic flux lines can be effectively collected in the lead portions at both ends of the magnetic core, and the magnetic field extending from one end to the other end of the magnetic core can be collected. A path can be easily formed. Thereby, the receiving performance of an antenna can be improved more.
In general, the circuit board is often provided on the back cover side in the thickness direction of the watch. By providing a magnetic member on such a circuit board, for example, the back cover is formed of a non-conductive material such as glass. In this case, external wireless information such as standard radio waves entering from the back cover side can be favorably collected by this magnetic member. Also, for example, when the back cover is made of metal, external wireless information that has entered from the windshield side and was not received by the antenna is received by this magnetic member and entered from the back cover side. Can be made. Therefore, the receiving sensitivity of the antenna is improved and the antenna characteristics are improved. Here, compared to the configuration in which the magnetic member is provided on the back cover, the magnetic member can be disposed closer to the antenna lead portion, so that the magnetic flux lines collected by the magnetic member do not escape in the other direction, It can lead to the lead part well, and the antenna characteristics such as the reception sensitivity of the antenna can be improved.
Furthermore, in order to avoid the influence of the magnetic field on the antenna in the area near the antenna on the circuit board, the number of elements constituting the processing circuit unit is small, and by providing the magnetic member in this area, the area of the magnetic member The magnetic flux collecting effect can be further improved. In addition, since the circuit board has a flat plate shape, it is easy to attach and fix the magnetic member, and work efficiency can be improved.

Furthermore, in the electronic timepiece with built-in antenna of the present invention, it is preferable that the magnetic member is an amorphous foil material made of an amorphous metal.
Here, examples of the metal magnetic foil material in the present invention include cobalt-based amorphous (Co—Fe—Ni—B—Si).
Amorphous metal has a much higher magnetic permeability than a circuit board or a conductive member (eg, copper) that forms, for example, a pattern of a processing circuit. Therefore, by using the amorphous foil material, the magnetic flux collecting effect can be further increased, and the magnetic flux lines input from the lead portion of the magnetic core into the antenna can be increased, thereby further improving the antenna characteristics.

In the electronic timepiece with built-in antenna of the present invention, it is preferable that the magnetic member is formed in an area larger than the lead overlapping region in the plan view.
According to the present invention, by using a magnetic member having an area larger than that of the lead overlapping region, it is possible to collect magnetic flux lines from a wider range and to further enhance the magnetic collection effect. Therefore, the amount of magnetic flux lines passing between the pair of lead portions of the magnetic core is also increased, and the antenna characteristics such as the reception sensitivity of the antenna can be improved and the antenna characteristics can be improved.

In the electronic timepiece with built-in antenna of the present invention, it is preferable that the magnetic member is attached and fixed to the circuit board via an adhesive layer.
According to the present invention, the magnetic member can be easily fixed via the adhesive layer formed of an adhesive or the like. Further, in the fixing with the adhesive layer, the thickness dimension can be reduced as compared with the case where the metal magnetic foil material is fixed using a resin sheet or the like. Thereby, it is possible to reduce the thickness of the electronic timepiece with built-in antenna. In addition, in the configuration in which a concave portion is formed on the base plate and a magnetic member is attached and fixed to the concave portion, the depth of the concave portion can be reduced, the formation of the base plate can be simplified, and the arrangement space for other watch parts inside the base plate Can contribute to making the watch thinner.

In the electronic timepiece with built-in antenna of the present invention, it is preferable that the magnetic member is provided on an antenna facing surface of the circuit board facing the antenna.
According to this invention, since the magnetic member is provided on the antenna side of the circuit board, the magnetic member can be brought closer to the antenna lead portion. Therefore, the magnetic flux lines collected by the magnetic member can be more easily guided to the antenna lead portion, and the antenna characteristics can be improved.

On the other hand, in the electronic timepiece with built-in antenna of the present invention, the antenna and the circuit board are accommodated, and an exterior case having a back cover is provided, and the circuit board is disposed between the antenna and the back cover, A magnetic member is good also as a structure provided in the back cover opposing surface which opposes the said back cover of the said circuit board.
That is, in general, the circuit board is often provided in the vicinity of the back cover side in the thickness direction of the watch. Integrated circuits such as capacitors and ICs (Integrated Circuits) and circuit elements such as patterns forming the circuit are connected to the back cover. It is formed on the antenna facing surface side that does not face. In such a circuit board, since a circuit element is not provided on the back cover facing surface that faces the back cover, a sufficient space for providing the magnetic member can be secured.
In addition, since a magnetic member having a large area can be provided on the circuit board and more magnetic flux lines can be collected, the magnetic flux collecting effect can be further improved.

In the electronic timepiece with built-in antenna according to the present invention, it is preferable that a plurality of the magnetic members are provided in a stacked manner.
According to this invention, by laminating the magnetic members, the thickness dimension of the magnetic members is increased, and more magnetic flux lines can be collected. Therefore, the antenna characteristics can be further improved by improving the magnetic flux collecting effect.

In the electronic timepiece with built-in antenna of the present invention, the magnetic member includes a magnetism collecting portion formed in an area larger than the lead overlapping region in the plan view, and one of the lead overlapping regions in the plan view. It is preferable to include a magnetic field output unit formed by laminating a plurality of magnetic foil members toward the lead unit at a position overlapping with the unit.
According to the present invention, for example, a single thin magnetic body on the back cover facing surface of the circuit board does not overlap the coil overlap region but at least partially overlaps the lead overlap region rather than the lead overlap region. A magnetic flux collector having a large area is formed. Here, as described above, the number of circuit elements forming the processing circuit is small on the back cover facing surface of the circuit board, and the formation area of the magnetism collecting part is increased. Magnetic flux lines can be collected, and the magnetic collection effect is improved. In addition, a magnetic field output portion formed by laminating magnetic foil members toward the lead portion is provided in a lead overlapping region on the antenna facing surface of the circuit board, that is, a position facing the lead portion. Thereby, the magnetic flux lines collected by the magnetic flux collector can be favorably output to the lead portion by the magnetic field output portion formed so as to be close to the lead portion. Here, the magnetic field output unit only needs to be provided in a part of the lead overlapping region on the antenna facing surface, and is not affected by the arrangement space of other circuit elements disposed on the antenna facing surface.
As described above, the magnetic flux lines efficiently collected in the magnetic flux collecting section can be guided from the magnetic field output section to the lead section, the magnetic flux density in the magnetic core can be increased, and the antenna characteristics can be further improved. . Further, the arrangement of the circuit elements of the processing circuit is not pressed by the arrangement space of the magnetic member, the size of the electronic timepiece with built-in antenna is not increased, and the size of the electronic timepiece with built-in antenna can be reduced.

Further, in the electronic timepiece with built-in antenna according to the present invention, the antenna and the circuit board are accommodated, and an exterior case having a back cover is provided, and the circuit board is disposed between the antenna and the back cover, It is preferable that the magnetism collecting unit is provided on a back cover facing surface of the circuit board facing the back cover, and the magnetic field output unit is provided on an antenna facing surface of the circuit board facing the antenna.
According to this invention, since the magnetism collecting portion is provided on the back cover facing surface side where the number of other circuit elements forming the processing circuit of the circuit board is small, the area of the magnetism collecting portion is the same as the above invention. Can be increased, and more magnetic flux lines can be collected. Further, since the magnetic field output unit is provided on the antenna facing surface, the lead unit and the magnetic field output unit can be brought close to each other, and the magnetic flux lines collected by the magnetic collecting unit are more reliably output to the lead unit. be able to. As described above, the magnetic flux collection effect can be further improved, and the antenna characteristics can be further improved.

Furthermore, in the electronic timepiece with built-in antenna according to the present invention, the circuit board has a through-hole penetrating from the antenna facing surface to the back cover facing surface in at least a part of the lead overlapping region, and the magnetism collecting portion Is provided on the back cover facing surface of the circuit board so as to cover the through hole, and the magnetic field output portion passes through the through hole and faces the antenna of the magnetism collecting portion from the lead portion. It is preferable to be provided so as to protrude toward the surface.
According to this invention, a through hole is formed in the circuit board, and the magnetic field output portion is formed in the through hole. For this reason, the magnetic field output unit and the magnetic flux collector can be brought into contact with each other, and the magnetic flux lines collected by the magnetic flux collector can be directly guided to the magnetic field output unit. Therefore, the magnetic flux lines collected at the magnetic flux collecting section can be more efficiently output from the magnetic field output section to the lead section, the magnetic flux density in the magnetic core becomes larger, and the antenna characteristics can be further improved.

The electronic device of the present invention includes an elongated magnetic core formed of a magnetic material, and a coil wound around the magnetic core, and an antenna capable of receiving external wireless information, and the antenna receives the electronic device. And a circuit board on which a processing circuit unit for performing various processes based on external wireless information is formed. The magnetic core is provided in a central portion in the longitudinal direction, and the coil is wound around the electronic device. A coil winding portion and a pair of lead portions projecting from both ends of the coil winding portion, and the circuit board has the coil winding portion of the antenna in a plan view of the surface direction of the circuit board. Magnetic material having a higher magnetic permeability than the circuit board at a position that does not overlap the coil overlapping area that overlaps with at least a part of the lead overlapping area that overlaps the pair of lead portions. Wherein the wood is provided.
According to the present invention, similarly to the above-described electronic timepiece with built-in antenna, the magnetic flux collecting effect of the antenna can be improved, the antenna characteristics can be improved, and the magnetic characteristics for improving the antenna characteristics in a limited space can be obtained. A member can be provided and it can contribute also to size reduction of an electronic device.

[First embodiment]
Hereinafter, a first embodiment according to the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a radio wave correction timepiece as an electronic timepiece with built-in antenna according to the first embodiment of the present invention.

In FIG. 1, the radio-controlled timepiece 1 is a pointer-type timepiece (analog timepiece) provided with hands 11, 12, 13 and a dial 14, and receives a long-wave standard radio wave as external wireless information having time information, The timepiece 11, 12, 13 can correct the position of the hands based on the received time information.
The radio-controlled timepiece 1 includes a pointer 10, 12, 13, a dial 14, an antenna 21 that receives standard radio waves, and a module 10 in which various configurations for controlling the driving of the hands 11, 12, 13 are incorporated (FIG. 2). And an exterior case 100 that accommodates these pointers 11, 12, 13, dial 14, module 10, and the like.
Here, the dial plate 14 is preferably formed of a non-conductive material such as synthetic resin or ceramic, for example, so that the standard radio wave entering from the windshield side is not hindered, and the antenna 21 described later is not obstructed. Can be received well.

[Module configuration]
A module 10 constituting the radio-controlled timepiece 1 will be described with reference to FIGS.
FIG. 2 is a view of the inside of the radio-controlled timepiece according to the first embodiment as viewed from the back cover side, and is a plan view showing a state in which the circuit board is removed.
FIG. 3 is a view of the inside of the radio-controlled timepiece according to the first embodiment as viewed from the back cover side, and is a plan view showing a state where a circuit board is attached.
FIG. 4 is a side cross-sectional view of the radio-controlled timepiece according to the first embodiment when cut in the thickness direction.
FIG. 5 is a block diagram showing a schematic configuration of the radio-controlled timepiece according to the first embodiment.
FIG. 6 is a block diagram showing the configuration of the receiving circuit unit of the radio-controlled timepiece according to the first embodiment.

The module 10 has a circular shape in plan view and has a module middle frame 101 (see FIG. 4) made of synthetic resin, and is fitted and fixed to the inner peripheral side of the outer case 100, for example.
In addition, when a plurality of projecting portions are provided on the outer peripheral surface of the module middle frame 101 and stored in the outer case 100, the position is fixed by abutting these projecting portions with the inner surface of the outer case 100, etc. It is good.

Further, the module 10 includes a circuit board 80 to which the receiving IC 86, the CPU 87, the reference vibrator 311 and the like are attached inside the module middle frame 101, motors 411 and 421 constituting a part of the driving means 4, a train wheel, and the like. And the like, a structural body such as a watch body (movement), a high-capacity secondary power source (secondary battery) 72 constituting the power supply means 7, and an antenna 21 for receiving radio waves are incorporated.
Here, the module inner frame 101 of the module 10 is formed in a substantially container shape, and the circuit board 80 is fixed to the back cover 130 side of the module inner frame 101 by, for example, fitting. The module 10 is housed in the outer case 100 so that the circuit board 80 faces the back cover 130.

The antenna 21 is disposed, for example, at a 9 o'clock position of the timepiece substantially along the inner surface of the module middle frame 101.
The antenna 21 includes a magnetic core 211 and a coil 212 wound around the magnetic core 211.
As shown in FIG. 4, the magnetic core 211 has a substantially square cross section. In addition, as shown in FIG. 2, the magnetic core 211 includes a linear coil winding portion 211A around which the coil 212 is wound, and a casing that forms the body portion of the outer case 100 from both ends of the coil winding portion 211A. 110, and a lead portion 211B protruding in a state along the inner periphery of 110.

  The magnetic core 211 is formed by, for example, punching a cobalt-based amorphous foil (e.g., Co 50 wt% or more amorphous foil) with a mold, or bonding about 10 to 30 pieces formed by etching, and superposing and annealing. Heat treatment is performed to stabilize the magnetic properties. That is, the magnetic core 211 is configured by laminating planar amorphous foils in the thickness direction of the watch. Note that the magnetic core 211 is not limited to the laminated amorphous foil, and ferrite may be used. In this case, the magnetic core 211 may be formed by a mold or the like and heat-treated.

  The coil 212 needs an inductance value of about 10 mH when receiving a long-wave standard radio wave (40 to 77.5 kHz). For this reason, in this embodiment, the coil 212 is formed by winding a uremet wire having a diameter of about 0.1 μm for several hundred turns.

  Here, as shown in FIG. 3, an area that overlaps the coil 212 in a plan view of the radio-controlled timepiece 1 viewed from the thickness direction is defined as a coil overlap area 83. Further, an area overlapping with the lead part 211B is defined as a lead overlapping area 84.

  The antenna 21 and a receiving IC 86 (described later) disposed on the circuit board 80 are connected by two wires. That is, the antenna 21 and the receiving IC 86 are electrically connected by taking out the coil 212 from the end of the antenna and soldering it to the circuit board. As a result, the standard radio wave received by the antenna 21 can be output to the receiving means 2. The electrical connection may be performed by attaching a flexible substrate made of polyimide or the like to the antenna 21 and screwing the substrate to the circuit board 80.

  Next, the circuit board 80 will be described with reference to the drawings. As shown in FIG. 5, the circuit board 80 includes a receiving unit 2 that processes received radio waves, a drive control circuit unit 3, a driving unit 4 that drives a pointer, and a counter unit 6 that counts time. Various circuit configurations are provided.

  The receiving means 2 includes an antenna 21 that receives radio waves, a tuning circuit portion 22 that is configured by a capacitor and tuned to the radio waves received by the antenna 21, a reception circuit portion 23 that processes information received by the antenna 21, and a reception A time data storage circuit unit 24 that stores time data processed by the circuit unit 23 is provided.

As shown in FIG. 6, the tuning circuit unit 22 includes two capacitors 22A and 22B connected in parallel to the antenna 21, and one capacitor 22B is connected to the antenna 21 via a switch 22C. Has been.
The frequency of the radio wave received by the antenna 21 is switched by turning on or off the switch 22C according to a frequency switching control signal output from the drive control circuit unit 3. As a result, for example, in Japan, two types are output from the standard radio wave output station of Otakado and Mt. (East Japan) with a transmission frequency of 40 kHz and the standard radio wave output station of Mt. Hagane (West Japan) with a transmission frequency of 60 kHz. It is configured to be able to switch and receive a long wave standard radio wave having a frequency of.

As shown in FIG. 6, the receiving circuit unit 23 amplifies the long wave standard radio signal received by the antenna 21, and a band pass filter that extracts only a desired frequency component from the amplified long wave standard radio signal. 232, a demodulation circuit 233 for smoothing and demodulating the long wave standard radio signal, an AGC (Automatic Gain Control) circuit 234 for controlling the gain of the amplification circuit 231 and controlling the reception level of the long wave standard radio signal to be constant, And a decoding circuit 235 that decodes and outputs the demodulated long-wave standard radio signal.
The time data received and signal-processed by the receiving circuit unit 23 is output to and stored in the time data storage circuit unit 24 as shown in FIG.
The reception circuit unit 23 starts receiving time information based on a reception control signal output from the drive control circuit unit 3 by a preset schedule, a forced reception operation by the external input device 8, or the like.

  As shown in FIG. 5, the pulse signal from the pulse synthesizing circuit 31 is input to the drive control circuit unit 3. The pulse synthesizing circuit 31 divides a reference pulse from a reference oscillator 311 such as a crystal oscillator to generate a clock pulse, and generates a pulse signal having a different pulse width and timing from the reference pulse. The reference vibrator 311 is connected to the CPU 87 and becomes a clock signal of the circuit. However, since the frequency is close to the long wave reception frequency and there is a possibility that a signal is mixed in the antenna 21 as noise, it is separated from the antenna 21. Are arranged.

  The drive control circuit unit 3 outputs a second drive pulse signal PS1 that is output once per second to drive the second hand and an hour / minute drive pulse signal PS2 that is output once per minute to drive the hour / minute hand. And output to the hour / minute drive circuit 42. The drive circuits 41 and 42 drive the second motor 411 and the hour / minute motor 421 that are stepping motors based on the pulse signal input from the drive control circuit 3. As a result, the second hand, the minute hand, and the hour hand connected to these motors 411 and 421 are driven. Each pointer, dial 14, motors 411 and 421, and drive circuits 41 and 42 constitute time display means for displaying the time. In addition, as a time display means, you may drive an hour hand, a minute hand, and a second hand with one motor.

The counter unit 6 includes a second counter circuit unit 61 that counts seconds and an hour / minute counter circuit unit 62 that counts hours and minutes.
The second counter circuit unit 61 includes a second position counter 611, a second time counter 612, and a coincidence detection circuit 613. The second position counter 611 and the second time counter 612 are both 60 counts, that is, a counter that loops in 60 seconds when a 1 Hz signal is input.
The second position counter 611 counts the drive pulse signal (second drive pulse signal PS1) supplied from the drive control circuit unit 3 to the second drive circuit 41. That is, the position of the second hand indicated by the second hand is counted by counting the drive pulse signal for driving the second hand.
The second time counter 612 normally counts a 1 Hz reference pulse signal (clock pulse) output from the drive control circuit unit 3. When the time data is received by the receiving means 2, the counter value is corrected according to the second data of the time data.

Similarly, the hour / minute counter circuit unit 62 includes an hour / minute position counter 621, an hour / minute time counter 622, and a coincidence detection circuit 623. Both the hour / minute position counter 621 and the hour / minute time counter 622 are counters that loop when signals for 24 hours are input.
The hour / minute position counter 621 counts the drive pulse signal (hour / minute drive pulse signal PS2) supplied from the drive control circuit unit 3 to the hour / minute drive circuit 42, and counts the position of the hour / minute hands indicated by the hour hand and minute hand. is doing.
The hour / minute / time counter 622 normally counts 1 Hz clock pulses output from the drive control circuit unit 3 (more precisely, 1 count is obtained when 1 Hz is counted 60 times). When the time data is received by the receiving means 2, the counter value is corrected according to the hour / minute data of the time data.

The coincidence detection circuits 613 and 623 detect coincidence of the count values of the position counters 611 and 621 and the time counters 612 and 622, and output a detection signal indicating whether or not they coincide to the drive control circuit unit 3.
When the mismatch signal is input from the match detection circuits 613 and 623, the drive control circuit unit 3 continues to output the drive pulse signals PS1 and PS2 until the match signal is input. For this reason, during normal hand movement, if the counter values of the time counters 612 and 622 are changed by the 1 Hz reference signal from the drive control circuit unit 3 and do not coincide with the position counters 611 and 621, the drive pulse signals PS1 and PS2 are output. As the hands move, the position counters 611 and 621 coincide with the time counters 612 and 622. By repeating this operation, normal hand movement control is performed.
Further, when the time counters 612 and 622 are corrected with the received time data, the drive pulse signals PS1 and PS2 continue to be output until the counter values of the position counters 611 and 621 coincide with the counter values, and the pointer is fast-forwarded. Is corrected to the correct time.

  Further, in the circuit board 80, various circuit elements such as the receiving unit 2, the drive control circuit unit 3, the driving unit 4, the counter unit 6, and a circuit pattern for connecting these components are described in the circuit board 80. The antenna facing surface 81 on the side facing the antenna 21 to be described later is provided at a position not facing the antenna 21. That is, since the antenna characteristics of the antenna 21 may be affected by the influence on the magnetic field accompanying the electrical processing by the various circuit elements as described above, these circuit elements are separated from the antenna 21 as shown in FIG. The antennas are arranged at different positions to avoid deterioration of antenna characteristics.

Then, as shown in FIGS. 3 and 4, an amorphous foil material 140 as a magnetic member is attached and fixed to the antenna facing surface 81 facing the antenna 21 of the circuit board 80.
Specifically, on the back cover facing surface 82 facing the back cover 130 of the circuit board 80, the coil of the antenna 21 is seen in a plan view of the inside of the radio wave correction watch 1 from the watch thickness direction as shown in FIG. The amorphous foil material 140 is affixed and fixed at a position that does not overlap the coil overlap region 83 that overlaps 212 and overlaps a part of the pair of lead overlap regions 84 that overlap the pair of lead portions 211B. Here, the pair of amorphous foil materials 140 are formed so as to extend in the protruding direction of the lead portion 211B (a direction away from the coil 212) in the plan view. That is, the amorphous foil material 140 is formed in a larger area than the lead overlapping region 84. Moreover, these amorphous foil materials 140 are stuck and fixed to the back cover facing surface 82 through an adhesive layer (not shown) formed of an adhesive.

  Examples of the amorphous foil material 140 include cobalt-based amorphous (Co—Fe—Ni—B—Si). The amorphous foil material 140 is, for example, cobalt-based amorphous (Co—Fe—Ni—B—Si), has a relative magnetic permeability of 20000, and has a magnetic permeability much higher than that of the circuit board 80. Therefore, the magnetic flux lines around the amorphous foil material 140 are collected to increase the magnetic field, and the magnetic flux lines passing from the amorphous foil material 140 to the inside of the magnetic core 211 via the lead portions 211B increase.

Here, when the amorphous foil material 140 is provided on the circuit board 80, the amorphous foil material 140 is provided at a position overlapping both the coil overlapping region 83 and the lead overlapping region 84, and the amorphous foil material 140 is disposed in the coil overlapping region. FIG. 7 shows a measurement result of measuring the reception sensitivity of the antenna 21 with respect to the case where it is provided at a position that does not overlap with 83 and a position that overlaps with the lead overlap region 84.
As shown in FIG. 7, when the amorphous foil material 140 was provided at a position overlapping the coil superposition region 83, no improvement in reception sensitivity was observed. That is, when a part of the amorphous foil material 140 is superimposed on the lead overlap region 84, the distance from the amorphous foil material 140 to the coil 212 is reduced, and the portion overlapping the coil overlap region 83 of the amorphous foil material 140 is collected in the coil 212. It can be seen that the magnetic flux lines escape, the reception sensitivity is not improved, and the effect of improving the antenna characteristics cannot be obtained. On the other hand, when the amorphous foil material 140 is provided at a position that does not overlap the coil overlapping region 83 and at a position that overlaps the lead overlapping region, the reception sensitivity of the antenna 21 is improved by 2 dB compared to the case where the amorphous foil material 140 is not provided. Was confirmed.

  The power supply means 7 includes a power generator 71 as a power generator configured by a self-winding generator, a solar battery (solar generator), and the like, and a high-capacity secondary power source 72 that stores power generated by the power generator 71. It is configured with. As the high capacity secondary power source 72, a secondary battery such as a lithium ion battery can be used. As the power supply means 7, a primary battery such as a silver battery may be used. In addition, the high-capacity secondary power source 72 is made of a stainless steel case, and is arranged at a position away from the antenna 21 in the module 10 as shown in FIG. 2 in order to suppress the influence on the antenna characteristics. Yes.

  The external input device 8 as an external input means includes a crown 8A and the like, and is used for performing a receiving operation and time adjustment.

[Configuration of exterior case]
Next, the configuration of the exterior case 100 of the radio-controlled timepiece 1 will be described.
As shown in FIGS. 2 to 4, the outer case 100 includes a casing 110, a windshield 120 mounted on the front surface side of the casing 110, and a metal detachably attached to the back surface (lower end surface) side of the casing 110. And a back cover 130 made of metal. The casing 110 is made of a metal material such as stainless steel, brass, or titanium. The casing 110 is formed in a substantially cylindrical shape, and the inner peripheral surface is formed in a substantially circular plane. Note that the back cover 130 and the casing 110 may be provided with a magnetic member for preventing an eddy current caused by a sub magnetic path generated by receiving radio waves with the antenna 21.

[Effects of the radio-controlled timepiece according to the first embodiment]
As described above, in the radio-controlled timepiece 1 of the first embodiment, the position overlaps at least a part of the lead overlap region 84 at a position that does not overlap the coil overlap region 83 on the back cover facing surface 82 of the circuit board 80. The amorphous foil material 140 is stuck and fixed at the position.
For this reason, many magnetic flux lines can be collected by this amorphous foil material 140, and the magnetic flux collecting effect in the antenna 21 can be improved by guiding the collected magnetic flux lines to the lead portion 211B. Further, since the amorphous foil material 140 is not provided in the coil overlapping region 83, the magnetic flux lines collected by the amorphous foil material 140 do not escape to the coil 212, and the magnetic flux lines are concentrated on the lead portion 211B of the magnetic core 211. Can be collected. Therefore, the amount of magnetic flux lines that pass through the magnetic core 211 increases, the magnetic flux density increases, and the standard radio waves can be easily captured. Therefore, the antenna characteristics of the antenna 21 can be improved.
Moreover, since the amorphous foil material 140 is affixed and fixed on the back cover facing surface 82 of the circuit board 80, that is, the plate surface, the amorphous foil material 140 can be easily installed.

  Further, since no other circuit elements protrude from the back cover facing surface 82 of the circuit board 80, a sufficient space for installing the amorphous foil material 140 can be secured. Therefore, the area of the amorphous foil material 140 can be increased, and the magnetic flux lines can be captured more easily, so that the antenna characteristics can be further improved.

  Moreover, the amorphous foil material 140 is used as a magnetic member. This amorphous foil material 140 has a magnetic permeability much higher than that of a watch component other than the magnetic core 211 of the antenna 21, such as the circuit board 80, the casing 110, the back cover 130, and the like. For this reason, the surrounding magnetic flux can be efficiently collected by the amorphous foil material 140. Therefore, the amount of magnetic flux lines input from the amorphous foil material 140 to the magnetic core 211 via the lead portion 211B is increased, and the magnetism collecting effect of the antenna 21 is improved, so that the antenna characteristics can be improved.

Further, the amorphous foil material 140 extends in the extending direction of the lead portion 211 </ b> B and is formed in an area larger than the lead overlapping region 84.
For this reason, the magnetic flux lines collected by the amorphous foil material 140 increase, and the magnetic flux lines input to the lead portion 211B also increase. Therefore, the magnetic flux density at the center of the magnetic core 211 is also increased, and the receiving sensitivity can be further improved.

  Furthermore, the amorphous foil material 140 is formed in a foil shape, and is fixed by pasting with an adhesive layer. For this reason, for example, compared with the structure using the conventional magnetic sheet which mix | blended the amorphous metal with the resin sheet, the thickness dimension of the amorphous foil material 140 and an adhesive layer can fully be made small, and the back cover opposing surface 82 of the circuit board 80 and It can be easily provided in a slight gap with the back cover 130. Therefore, the thickness dimension of the radio-controlled timepiece 1 does not increase, and the design can be improved.

[Second Embodiment]
Next, a second embodiment according to the present invention will be described with reference to the drawings. In the following drawings and embodiments, the same components as those of the radio-controlled timepiece 1 of the first embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.
FIG. 8 is a side sectional view showing a schematic configuration of the radio-controlled timepiece according to the second embodiment of the present invention.

  The radio-controlled timepiece 1A according to the second embodiment is obtained by changing the attachment position of the amorphous foil material 140 in the radio-controlled timepiece 1 according to the first embodiment.

  That is, in the radio-controlled timepiece 1A of the second embodiment, the amorphous foil material 140 is attached and fixed to the antenna facing surface 81 facing the antenna 21 in the circuit board 80. Specifically, as shown in FIG. 8, the amorphous foil material 140 is affixed and fixed on the antenna facing surface 81 at a position that does not overlap the coil overlapping region 83 and overlaps the lead overlapping region 84. In this case, the amorphous foil material 140 is affixed and fixed to a position where it does not overlap with other circuit elements such as the receiving IC 86, the CPU 87, and the reference vibrator 311 disposed on the circuit board 80 via an adhesive layer made of an adhesive, for example. Is done.

[Effects of the radio-controlled timepiece according to the second embodiment]
The radio-controlled timepiece 1A of the second embodiment has the following functions and effects in addition to the functions and effects of the radio-controlled timepiece 1 of the first embodiment.
That is, in the radio-controlled timepiece 1 </ b> A, the amorphous foil material 140 is provided on the antenna facing surface 81 of the circuit board 80 at a position that does not overlap the coil overlapping area 83 and a position that overlaps at least a part of the lead overlapping area 84. . For this reason, compared with the case where the amorphous foil material 140 is provided on the back cover facing surface 82, the amorphous foil material 140 and the lead portion 211B can be brought closer to each other. Therefore, the magnetic flux lines collected by the amorphous foil material 140 can be easily guided by the lead portion 211B, and the magnetic flux density in the magnetic core 211 can be increased. Therefore, the antenna characteristics of the antenna 21 can be improved.

[Third embodiment]
Next, a radio-controlled timepiece according to a third embodiment of the present invention will be described with reference to the drawings. FIG. 9 is a side cross-sectional view showing a schematic configuration of the radio-controlled timepiece according to the third embodiment.

The radio wave correction watch 1B of the third embodiment is obtained by modifying the amorphous foil material 140 in the radio wave correction watch 1A of the second embodiment. That is, in the radio-controlled timepiece 1B according to the third embodiment, the plurality of amorphous foil members 140 are not overlapped with the coil overlapping region 83 and the lead overlapping region 84 on the antenna facing surface 81 of the circuit board 80. A laminated amorphous foil layer 141 is formed. The amorphous foil layer 141 is formed by laminating and bonding a plurality of amorphous foil materials 140 to each other by, for example, an adhesive layer formed of an adhesive, and is attached to the circuit board 80 by adhesive fixing using an adhesive. It is fixed.
Further, a predetermined gap dimension is formed between the surface of the amorphous foil layer 141 facing the lead portion 211B and the lead portion 211B. This gap has a function of protecting the lead portion 211B and the amorphous foil layer 141 when, for example, an impact is applied to the radio wave correction timepiece 1B. That is, even if the amorphous foil layer 141 and the lead portion 211B vibrate due to an impact, the vibration does not cause the amorphous foil layer 141 and the lead portion 211B to collide with each other, thereby preventing damage.

[Effects of the radio-controlled timepiece according to the third embodiment]
As described above, in the radio-controlled timepiece 1B according to the third embodiment, a position that does not overlap the coil overlapping region 83 and overlaps at least a part of the lead overlapping region 84 on the antenna facing surface 81 of the circuit board 80. In addition, an amorphous foil layer 141 in which the amorphous foil material 140 is laminated is formed.
For this reason, compared with the structure where the single amorphous foil material 140 is affixed, the layer thickness dimension of the amorphous foil layer 141 can be increased, more magnetic flux lines can be collected, and the magnetic flux collecting effect can be further enhanced. it can. Therefore, the antenna characteristics of the antenna 21 can be improved.

  Further, since the amorphous foil layer 141 is laminated on the antenna facing surface 81 of the circuit board 80, the amorphous foil layer 141 and the lead portion 211B are close to each other, and the collected magnetic flux lines are surely input to the lead portion 211B. Can do. Therefore, the magnetic flux density of the magnetic core 211 is also increased, and the antenna characteristics can be further improved.

  Further, a gap of a predetermined dimension is provided between the amorphous foil layer 141 and the lead portion 211B. For this reason, even when an impact is applied to the radio-controlled timepiece 1B and, for example, vibration occurs in the lead part 211B or the amorphous foil layer 141, the lead part 211B and the amorphous foil layer 141 do not collide with each other, and the lead part 211B or amorphous foil layer 141 can be prevented from being damaged.

[Fourth embodiment]
Next, a fourth embodiment according to the present invention will be described with reference to the drawings. FIG. 10 is a side sectional view showing a schematic configuration of the radio wave correction timepiece according to the fourth embodiment.

  A radio-controlled timepiece 1C according to the fourth embodiment is a modification of the radio-controlled timepiece 1 according to the first embodiment. That is, the radio-controlled timepiece 1C according to the fourth embodiment does not overlap with the coil overlapping region 83 on the back cover facing surface 82 of the circuit board 80 and the lead overlapping region 84, as in the first embodiment. An amorphous foil material 140 as a magnetism collecting part is attached and fixed at a position overlapping at least a part. Further, a part of the lead overlapping region 84 on the antenna facing surface 81 of the circuit board 80 protrudes from the lead portion 211B and is formed as a magnetic field output portion formed by laminating amorphous foil materials 140A as a plurality of magnetic foil members. 141A of amorphous foil layer is formed. Similar to the amorphous foil layer 141 of the third embodiment, these amorphous foil materials 140A are formed by bonding and fixing each amorphous foil material 140A with an adhesive.

  Similarly to the second embodiment, a predetermined gap dimension is formed between the amorphous foil layer 141A and the lead portion 211B to prevent the amorphous foil layer 141A and the lead portion 211B from being damaged.

[Effects of the radio-controlled timepiece according to the fourth embodiment]
In the radio-controlled timepiece 1C according to the fourth embodiment, an amorphous foil material is provided at a position that does not overlap the coil overlapping region 83 on the back cover facing surface 82 of the circuit board 80 and that overlaps at least a part of the lead overlapping region 84. 140 is attached and fixed, and an amorphous foil layer 141A formed by laminating an amorphous foil material 140A toward the lead portion 211B is formed in a part of the lead overlapping region 84 on the antenna facing surface 81 of the circuit board 80. .
Therefore, as in the first to third embodiments, the amorphous foil material 140 can collect the surrounding magnetic flux lines satisfactorily, and the magnetic flux lines collected by the amorphous foil material 140 can be read. The amorphous foil layer 141A formed toward the portion 211B can be output to the lead portion 211B. That is, more magnetic flux lines collected by the amorphous foil material 140 can be guided to the lead portion 211B, and the magnetic flux density of the magnetic core 211 is also increased. Therefore, the receiving sensitivity of the antenna 21 is also improved, and the antenna characteristics can be further improved.

  In addition, since the amorphous foil layer 141A is formed only in a part of the lead overlapping region 84 on the antenna facing surface 81, other circuit elements on the circuit board 80, for example, a watch body incorporated in the module 10 is provided. There is no pressure on the arrangement space for the timepiece components. Accordingly, the antenna characteristics of the antenna 21 can be improved without increasing the size of the radio-controlled timepiece 1C.

[Fifth embodiment]
Next, a radio-controlled timepiece 1D according to a fifth embodiment of the invention will be described with reference to the drawings. FIG. 11 is a side sectional view showing a schematic configuration of a radio wave correction timepiece according to the fifth embodiment.

The radio-controlled timepiece 1D of the fifth embodiment is a modification of the radio-controlled timepiece 1C of the fourth embodiment.
That is, in the radio-controlled timepiece 1D of the fifth embodiment, a through hole 85 that penetrates the antenna facing surface 81 and the back cover facing surface 82 is formed in a part of the lead overlapping region 84 of the circuit board 80.
Then, on the back cover facing surface 82 of the circuit board 80, similarly to the fourth embodiment, the magnetic flux collection is performed at a position that does not overlap the coil overlapping region 83 and overlaps at least a part of the lead overlapping region 84. The amorphous foil material 140 as a part is stuck and fixed. Further, in the through hole 85 of the circuit board 80, an amorphous foil layer 141A as a magnetic field output portion formed by laminating a plurality of amorphous foil materials 140A is formed protruding toward the lead portion 211B. Here, the amorphous foil layer 141 </ b> A is formed so as to penetrate the through-hole 85, and is bonded and fixed so that the end surface on the back cover 130 side is in contact with the amorphous foil material 140. Further, as in the third and fourth embodiments, a predetermined gap dimension is formed between the amorphous foil layer 141A and the lead portion 211B to prevent damage to the amorphous foil layer 141A and the lead portion 211B. ing.

[Effects of the radio-controlled timepiece according to the fifth embodiment]
As described above, in the radio-controlled timepiece 1D of the fifth embodiment, the through hole 85 is formed in a part of the lead overlapping region 84 in the circuit board 80. The amorphous foil material 140 is fixed to the back cover facing surface 82 of the circuit board 80 at a position that does not overlap with the coil overlapping region 83 and at least a part of the lead overlapping region 84. In the through hole 85 of the circuit board 80, an amorphous foil layer 141A formed by laminating the amorphous foil material 140A is provided in contact with the amorphous foil material 140.
For this reason, the surrounding magnetic flux lines can be collected well by the amorphous foil material 140, and the magnetic flux lines collected by the amorphous foil material 140 can be output from the amorphous foil layer 141A to the lead portion 211B. At this time, since the amorphous foil material 140 and the amorphous foil layer 141A are in contact, when the magnetic flux lines are guided from the amorphous foil material 140 to the amorphous foil layer 141A, there is no loss of magnetic flux lines, and the amorphous foil layer 141A is satisfactorily obtained. Move to. Therefore, the amount of magnetic flux lines output from the amorphous foil layer 141A to the lead portion 211B is also increased, and the antenna characteristics of the antenna 21 can be further improved.

[Other embodiments]
It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.

  For example, although the amorphous metal foil-shaped member which is a ferromagnetic member was used as a magnetic member, it is not limited to this. For example, the magnetic member is not particularly limited as long as it has a magnetic permeability higher than that of the circuit board 80, and may be appropriately selected depending on the material of the circuit board 80.

  Moreover, in the said embodiment, although the example in which the back cover 130 was formed with the metal was shown, it is good also as a structure formed, for example with nonelectroconductive materials, such as glass. In this case, the standard radio wave can enter from the back cover 130 side, and the standard radio wave entering from the back cover 130 side can be satisfactorily received by the amorphous foil material 140 and input to the antenna 21. Sensitivity can be improved.

  In the third embodiment, the example in which the amorphous foil layer 140 is formed by laminating the amorphous foil material 140 on the antenna facing surface 81 of the circuit board 80 has been described. However, the present invention is not limited to this. For example, a configuration may be adopted in which an amorphous foil layer 141 in which an amorphous foil material 140 is laminated is formed on the back cover facing surface 82 of the circuit board 80 as in a radio wave correction watch 1E shown in FIG. Even in this case, since the thickness of the amorphous foil layer 141 is increased by the plurality of amorphous foil materials 140 as compared with the configuration in which the single amorphous foil material 140 is provided, the magnetic flux collecting effect can be further improved. The characteristics can be improved.

  In the third to fifth embodiments, an example in which a predetermined gap is formed between the amorphous foil layers 141 and 141A and the lead portion 211B has been described. For example, the amorphous foil layers 141 and 141A and the lead portion are formed. It is good also as a structure which 211B contacts. In this case, magnetic flux lines are directly input from the amorphous foil layers 141 and 141A to the lead portion 211B. That is, the collected magnetic flux lines can be input to the magnetic core 211 more efficiently, and the antenna characteristics of the antenna 21 can be further improved.

  In the fourth and fifth embodiments, the amorphous foil layer 141A is provided in a part of the lead overlapping region 84. However, the present invention is not limited to this. For example, similarly to the amorphous foil material 140, the amorphous foil layer 141A is formed at a position that does not overlap with the coil overlapping region 83 and at a position that overlaps at least a part of the lead overlapping region 84 with an area larger than the lead overlapping region 84. It is good also as a structure to be made. In this case, more magnetic flux lines can be collected and the collected magnetic flux lines can be favorably guided to the lead portion 211B, so that the antenna characteristics can be further improved.

  Furthermore, in the first to fifth embodiments, the configuration is shown in which the amorphous foil material 140 or the amorphous foil layers 141 and 141A are formed in the pair of lead overlapping regions 84 corresponding to the pair of lead portions 211B, respectively. However, it is not limited to this. For example, the amorphous foil material 140 and the amorphous foil layers 141 and 141A may be provided only in the lead overlapping region 84 corresponding to one of the pair of lead portions 211B. Further, one of the pair of amorphous foil materials 140 may be provided on the back cover facing surface 82 and the other may be provided on the antenna facing surface 81.

  In the fourth and fifth embodiments, the amorphous foil material 140 provided on the back cover facing surface 82 is exemplified as the magnetism collecting portion. However, the present invention is not limited to this. For example, as in the radio wave correction timepiece 1F shown in FIG. 13, an amorphous foil material 140 as a magnetism collecting portion may be provided on the antenna facing surface 81, and the amorphous foil layer 141A may be provided on the amorphous foil material 140.

  Furthermore, in the first to fifth embodiments, the radio wave correction watches 1, 1A, 1B, 1C, 1D, 1E, and 1F are illustrated, but the present invention is not limited to this. That is, the present invention is not limited to the antenna built-in type electronic timepiece having the antenna as described above. For example, the antenna 21 including the magnetic core 211 and the coil 212 such as a mobile phone, a radio, and a television. And a circuit board having a processing circuit for performing various processes based on information received by the antenna 21 can be used for any wireless electronic device.

  In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like within a range in which the object of the present invention can be achieved.

1 is a front view of a radio wave correction timepiece as an electronic timepiece with a built-in antenna according to a first embodiment of the present invention. It is the figure which looked at the inside of the electric wave correction timepiece of said 1st embodiment from the back cover side, and is a top view which shows the state which removed the circuit board. It is the figure which looked at the inside of the electric wave correction timepiece of said 1st embodiment from the back cover side, and is a top view which shows the state to which the circuit board was attached. It is a sectional side view at the time of making a cross section in the thickness direction of the radio-controlled timepiece of the first embodiment. It is a block diagram which shows schematic structure of the electromagnetic wave correction timepiece of said 1st embodiment. It is a block diagram which shows the structure of the receiving circuit part of the electromagnetic wave correction timepiece of said 1st embodiment. The measurement results of the reception sensitivity of the antenna of the radio-controlled timepiece according to the first embodiment, and the reception sensitivity of the antenna of the radio-controlled timepiece in which an amorphous foil material is provided at a position overlapping both the coil superimposed region and the lead superimposed region It is a figure which shows a measurement result. It is a sectional side view showing a schematic structure of a radio wave correction timepiece according to a second embodiment of the present invention. It is a sectional side view showing a schematic structure of a radio wave correction timepiece according to a third embodiment of the present invention. It is a sectional side view which shows schematic structure of the electromagnetic wave correction watch of 4th Embodiment which concerns on this invention. It is a sectional side view which shows schematic structure of the radio wave correction timepiece of 5th Embodiment which concerns on this invention. It is a sectional side view which shows schematic structure of the radio wave correction timepiece of other embodiment. It is a sectional side view which shows schematic structure of the electromagnetic wave correction timepiece of other embodiment.

Explanation of symbols

  1, 1A, 1B, 1C, 1D, 1E, 1F ... Radio correction watch as an antenna built-in electronic timepiece, 21 ... antenna, 80 ... circuit board, 81 ... antenna facing surface, 82 ... back cover facing surface, 83 ... coil Overlapping region, 84 ... lead overlapping region, 85 ... through hole, 100 ... outer case, 130 ... back cover, 140 ... amorphous foil material constituting magnetic member and magnetism collecting portion, 140A ... amorphous foil material as magnetic foil member, 141A: Amorphous foil layer as a magnetic field output section, 211: Magnetic core, 211A: Coil winding section, 211B: Lead section, 212: Coil

Claims (11)

An elongated magnetic core formed of a magnetic body and a coil wound around the magnetic core, an antenna capable of receiving external wireless information, and various processes based on the external wireless information received by the antenna An electronic timepiece with a built-in antenna comprising a circuit board on which a processing circuit unit for carrying out is formed,
The magnetic core includes a coil winding portion provided at a central portion in the longitudinal direction and wound with the coil, and a pair of lead portions protruding to both end sides of the coil winding portion,
On the circuit board, in a plan view when viewing the surface direction of the circuit board, a position of the lead overlapping area that overlaps the coil overlapping area that overlaps the coil winding part of the antenna and that overlaps the pair of lead parts. An electronic timepiece with built-in antenna, characterized in that a magnetic member having a higher magnetic permeability than that of the circuit board is provided at a position overlapping at least a part thereof. The electronic watch with a built-in antenna according to claim 1,
The electronic timepiece with a built-in antenna, wherein the magnetic member is an amorphous foil material made of an amorphous metal. In the electronic timepiece with a built-in antenna according to claim 1 or 2,
The electronic member built-in antenna timepiece, wherein the magnetic member is formed in an area larger than the lead overlapping region in the plan view. The electronic timepiece with a built-in antenna according to any one of claims 1 to 3,
The electronic timepiece with a built-in antenna, wherein the magnetic member is attached and fixed to the circuit board via an adhesive layer. In the electronic timepiece with a built-in antenna according to any one of claims 1 to 4,
The electronic timepiece with a built-in antenna, wherein the magnetic member is provided on an antenna facing surface of the circuit board facing the antenna. In the electronic timepiece with a built-in antenna according to any one of claims 1 to 4,
The antenna and the circuit board are accommodated, and an exterior case having a back cover is provided.
The circuit board is disposed between the antenna and the back cover;
The electronic timepiece with a built-in antenna, wherein the magnetic member is provided on a back cover facing surface of the circuit board facing the back cover. In the electronic timepiece with a built-in antenna according to any one of claims 1 to 6,
An electronic timepiece with a built-in antenna, wherein a plurality of the magnetic members are provided. In the electronic timepiece with a built-in antenna according to any one of claims 1 to 6,
The magnetic member includes a plurality of magnetic flux collectors formed in an area larger than the lead overlapping region in the plan view, and a plurality of magnetic members toward the lead portion at positions overlapping with a part of the lead overlapping region in the plan view. And a magnetic field output unit formed by laminating the magnetic foil members. The electronic watch with a built-in antenna according to claim 8,
The antenna and the circuit board are accommodated, and an exterior case having a back cover is provided.
The circuit board is disposed between the antenna and the back cover;
The magnetism collecting portion is provided on a back cover facing surface facing the back cover of the circuit board,
The electronic timepiece with a built-in antenna, wherein the magnetic field output unit is provided on an antenna facing surface of the circuit board facing the antenna. The electronic watch with a built-in antenna according to claim 9,
The circuit board has a through hole penetrating from the antenna facing surface to the back cover facing surface in at least a part of the lead overlapping region,
The magnetism collecting portion is provided on the back cover facing surface of the circuit board so as to cover the through hole,
The magnetic field output unit is provided with an antenna built-in type electronic timepiece, which penetrates the through hole and protrudes from the surface of the magnetism collecting unit facing the antenna toward the lead unit. An elongated magnetic core formed of a magnetic body and a coil wound around the magnetic core, an antenna capable of receiving external wireless information, and various processes based on the external wireless information received by the antenna In an electronic device comprising a circuit board on which a processing circuit unit for carrying out is formed,
The magnetic core includes a coil winding portion provided at a central portion in the longitudinal direction and wound with the coil, and a pair of lead portions protruding to both end sides of the coil winding portion,
On the circuit board, in a plan view when viewing the surface direction of the circuit board, a position of the lead overlapping area that overlaps the coil overlapping area that overlaps the coil winding part of the antenna and that overlaps the pair of lead parts. An electronic device, wherein a magnetic member having a higher magnetic permeability than that of the circuit board is provided at a position overlapping at least a part thereof.

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