JP7054790B2 - Human body communication device, mounting equipment and device body - Google Patents

Description

The present disclosure relates to a human body communication device, a mounting device, and a device body, and more specifically, a human body communication device including the mounting device and the device body, a mounting device used in the human body communication device, and a device body used in the human body communication device. Regarding.

The human body communication device (human body communication device) described in Patent Document 1 includes a block (device body) and a band (wearing device). The block is a control unit for performing human body communication, and includes a communication module (circuit board). The band is a part that is wrapped around the wrist of the human body and includes a cold electrode (reference electrode) and a hot electrode. The block is connected to the band. The cold electrode and the hot electrode are connected to the communication module by wiring.

Japanese Unexamined Patent Publication No. 2016-15553

In the human body communication device described in Patent Document 1, electrodes (cold electrodes and hot electrodes) for human body communication are provided in the band, and the electrodes are connected to the communication module in the block by a wiring member. Therefore, when replacing the band, it is necessary to reconnect the wiring between the electrodes in the band and the communication module in the block. Therefore, it took time and effort to replace the band.

It is an object of the present disclosure to provide a human body communication device, a mounting device, and a device body that can easily replace the mounting device even if the mounting device mounted on a part of the human body is provided with electrodes for human body communication. And.

The human body communication device according to one aspect of the present disclosure includes a mounting device and a device main body. The wearing device is attached to a part of the human body. The device main body communicates using the human body as at least a part of a communication medium. The mounting device has a mounting device main body and a reference electrode. The reference electrode is provided on the mounting device main body. The apparatus main body has a hot electrode, a connection portion, a circuit board, and a case. The hot electrode is capacitively coupled to the human body in a state where the wearing device is attached to the part of the human body. The connection portion is detachably connected to the reference electrode using at least one connection method of electrical connection, magnetic connection and optical connection. The circuit board is electrically connected to the hot electrode and the connection portion. The case is provided with the hot electrode, the connection portion, and the circuit board. One of the case and the mounting device has a connecting portion that is detachably connected to the other.

The wearing device according to one aspect of the present disclosure is the wearing device used in the human body communication device according to the above one aspect. The mounting device includes the mounting device main body and the reference electrode.

According to this configuration, it is possible to provide a wearing device that exhibits the above-mentioned effects of the human body communication device.

The device main body according to one aspect of the present disclosure is the device main body used in the human body communication device according to the above one aspect. The apparatus main body has the hot electrode, the connection portion, the communication circuit, and the case.

According to this configuration, it is possible to provide a device main body that exhibits the above-mentioned effects of the human body communication device.

According to the present disclosure, there is an effect that the wearing device can be easily replaced even if the mounting device mounted on a part of the human body is provided with an electrode for human body communication.

FIG. 1A is a perspective view of the human body communication device according to the first embodiment as viewed from the front side. FIG. 1B is a perspective view of the same human body communication device as viewed from the back side. FIG. 2A is an exploded perspective view showing the same human body communication device. FIG. 2B is a perspective view showing a fixing component. FIG. 2C is a perspective view showing a protruding component. FIG. 3 is a cross-sectional view taken along the line AA of FIG. 1A. FIG. 4 is a perspective view of the band of the human body communication device as seen from the back side. FIG. 5 is an exploded perspective view showing the band of the human body communication device as described above. FIG. 6 is a side view showing a state in which the above-mentioned human body communication device is attached to a part of the human body. FIG. 7 is a cross-sectional view showing a human body communication device according to the first modification of the first embodiment. FIG. 8 is a side view showing a state in which the human body communication device according to the second modification of the first embodiment is attached to a part of the human body. FIG. 9A is a perspective view showing the human body communication device according to the second embodiment. FIG. 9B is an exploded perspective view showing the same human body communication device. FIG. 10A is a cross-sectional view showing a human body communication device according to the first modification of the second embodiment. FIG. 10B is a perspective view of the band of the human body communication device as seen from the back side. FIG. 11A is a perspective view of the human body communication device according to the third embodiment as viewed from the front side. FIG. 11B is a perspective view of the same human body communication device as viewed from the front side. FIG. 12 is an exploded perspective view showing the same human body communication device. FIG. 13 is a cross-sectional view taken along the line BB of FIG. FIG. 14 is a side view showing a state in which the above-mentioned human body communication device is attached to a part of the human body.

Hereinafter, embodiments of the present disclosure will be described. The following embodiments are merely examples of the various embodiments of the present disclosure. Further, the following embodiments can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved.

(1) Embodiment 1
The human body communication device 1 according to the present embodiment will be described with reference to FIGS. 1A to 6.

The human body communication device 1 is a device that communicates with another human body communication device using human body communication. Human body communication is communication in which a human body (dielectric) is used as at least a part of a communication medium. More specifically, the human body communication device 1 is a device that capacitively couples with a human body and applies an electric field on which an information signal is carried to the capacitively coupled human body to transmit an information signal to another human body communication device. Further, the human body communication device 1 is a device that receives an information signal from another human body communication device by detecting an electric field via a capacitively coupled human body.

In the present embodiment, the human body communication device 1 is a wearable communication device attached to a part of the human body (for example, a wrist), and is capacitively coupled to the attached human body. In this case, the human body communication device 1 is capable of human body communication with another human body communication device mounted on the same human body. Further, the human body communication device 1 is capable of human body communication with another human body communication device attached to another human body that the attached human body has come into contact with by shaking hands or the like. Further, the human body communication device 1 is capable of human body communication with another human body communication device in which the attached human body is in direct contact with the hand.

As shown in FIGS. 1A to 2, the human body communication device 1 includes a device main body 2 and a mounting device 3. The device main body 2 is a part that performs human body communication with another human body communication device. The wearing device 3 is a part to be worn on a part of the human body (for example, a wrist). The wearing device 3 is, for example, a band that is worn on a part of the human body by being wrapped around the part of the human body. "Wrapped around a part of the human body" means that it is wrapped around a part of the human body and sticks to a part of the human body. A part of the human body may be a neck, legs, a torso, etc. in addition to the wrist. Hereinafter, the band will also be referred to as band 3. Further, the band 3 is not limited to being worn in a state of being in direct contact with the epidermis of the human body, and may be worn on clothes or the like.

As shown in FIG. 3, the apparatus main body 2 includes a hot electrode 6, a connection portion 7 (electrode), a circuit board 8, a case 9 (see FIG. 2), and a fixing component 10 (see FIG. 2). I have.

The hot electrode 6 is a portion that is capacitively coupled to and from the human body by coming into contact with the human body to which the human body communication device 1 is attached. The hot electrode 6 is, for example, a plate shape having a rectangular shape in a plan view (for example, a shape slightly smaller than the back surface 9b of the case 9) (see FIG. 2B), and is formed of a conductive member having conductivity (for example, copper or a copper alloy). Has been done. The hot electrode 6 may be subjected to a rust preventive treatment or the like on the side that comes into contact with the human body. As the rust preventive treatment, for example, a metal layer that does not easily rust may be formed or attached to the surface of the hot electrode 6.

The connection portion 7 is a portion in the band 3 that is electrically connected to the reference electrode 32 described later so as to be connectable and separable. "Connectable" means that connection and separation are possible. In the present embodiment, the connecting portion 7 is configured as a parallel plate electrode. Hereinafter, the parallel plate electrode will also be referred to as a parallel plate electrode 7. The parallel plate electrode 7 is capacitively coupled to the reference electrode 32 described later in the band 3. Capacitive coupling is an example of a connection method in which connections are separated by electrical connection. Capacitive coupling is also an example of a non-contact connection method. The parallel plate electrode 7 has, for example, a plate shape having a rectangular shape in a plan view (for example, a shape slightly smaller than the back surface 9b of the case 9), and is formed of a conductive member having conductivity (for example, copper or a copper alloy).

The circuit board 8 is a board provided with a circuit component 8a and a wiring portion. The circuit component 8a is a circuit component constituting a communication circuit that performs human body communication with an external human body communication device. The wiring portion is a conducting wire portion that electrically connects the circuit components 8a to each other. The circuit board 8 is electrically connected to the hot electrode 6 and the parallel plate electrode 7. The case 9 is a member provided with a hot electrode 6, a circuit board 8, a parallel plate electrode 7, and the like. In the present embodiment, the case 9 is an outer shell that houses the hot electrode 6, the circuit board 8, the parallel plate electrode 7, and the like.

The case 9 is made of, for example, a resin member. As shown in FIGS. 1A to 2, the case 9 has, for example, a rectangular box shape in a plan view (for example, a flat box shape), and as shown in FIG. 3, a hot electrode 6, a parallel plate electrode 7, and a circuit board are internally formed. It has an internal space S1 capable of accommodating 8. The case 9 has an upper surface 9a, a back surface 9b, and an outer peripheral surface 9c. The upper surface 9a and the back surface 9b are main surfaces on both sides of the case 9 in the thickness direction, and are substantially quadrangles having the same shape and the same size as each other. The back surface 9b is a facing surface (case-side facing surface) facing the human body in the case 9 in a state where the band 3 is wound around a part of the human body. Hereinafter, the facing surface is also referred to as a facing surface 9b. The outer peripheral surface 9c is a cylindrical surface that connects the outer periphery of the upper surface 9a and the outer periphery of the back surface 9b. The outer peripheral surface 9c rises vertically from the outer periphery of the back surface 9b and is connected to the outer periphery of the upper surface 9a. In the present embodiment, the shape of the case 9 is a hollow box shape having a rectangular shape in a plan view, but the shape is not limited to such a shape, and may be, for example, a hollow box shape having a circular shape in a plan view.

As shown in FIG. 3, the case 9 has an opening 9d, a connecting portion 9e, and a fixing hole 9f. The opening 9d is a portion where the hot electrode 6 housed in the case 9 is exposed. The connecting portion 9e is a portion that is detachably connected to the band 3. The fixing hole 9f is a hole into which the fixing component 10 is inserted. In the present embodiment, the connecting portion 9e is provided in the case 9 of the band 3 and the case 9.

The opening 9d is provided on the back surface 9b of the case 9 and is connected to the internal space S1 inside the case 9. The opening 9d is formed in a shape (for example, a quadrangular shape) slightly smaller than that of the hot electrode 6. The hot electrode 6 is arranged on the back side of the opening 9d inside the case 9 (that is, the internal space S1), and exposes one main surface of the hot electrode 6 through the opening 9d.

The connecting portion 9e is a penetrating type connecting portion in which the band 3 is penetrated through the case 9 to be connected. The connecting portion 9e has two openings 9g and 9h and a through hole 9i. The two openings 9g and 9h are openings into which the band 3 is inserted. The through hole 9i is a hole connecting the two openings 9g and 9h, and is a hole into which the band 3 is inserted.

As shown in FIGS. 1A and 1B, the two openings 9g and 9h are provided side by side on the outer peripheral surface 9c of the case 9 along the circumferential direction of the outer peripheral surface 9c. More specifically, the outer peripheral surface 9c has four sides. The four side surfaces are rectangular, for example, and are connected side by side in the circumferential direction of the outer peripheral surface 9c. Of the four side surfaces, two openings 9g and 9h are provided on the two facing sides. The two openings 9g and 9h have a shape that fits the cross-sectional shape of the band 3, and are, for example, a horizontally long rectangle. The cross-sectional shape of the band 3 is a cross-sectional shape in a plane orthogonal to the longitudinal direction of the band 3.

As shown in FIG. 3, the through hole 9i is a hole having the same cross-sectional shape as the openings 9g and 9h. The case 9 has a cylindrical wall portion 91 inside which the two openings 9g and 9h are connected. Hereinafter, the cylinder wall portion will also be referred to as a cylinder wall portion 91. A through hole 9i is formed by the inner peripheral surface of the cylinder wall portion 91. That is, the cylinder wall portion 91 is provided in a portion of the case 9 facing the band 3 in a state where the band 3 is inserted into the through hole 9i (that is, a state in which the connecting portion 9e and the band 3 are connected). There is. By partitioning the internal space S1 in the case 9 and the space in the through hole 9i, the tubular wall portion 91 prevents the inside of the case 9 from being exposed to the outside from the openings 9g and 9h. Therefore, it is possible to prevent water, foreign matter, and the like from entering the case 9.

As shown in FIG. 3, the connecting portions 9e are arranged on the outer peripheral surface 9c of the case 9 at intervals from the back surface 9b of the case 9 in the thickness direction of the case 9. More specifically, the two openings 9g and 9h constituting the connecting portion 9e are arranged on the outer peripheral surface 9c at intervals from the side 9j on the back surface 9b side of the case 9. For example, the two openings 9g and 9h are arranged in the middle of the height of the outer peripheral surface 9c. The height of the outer peripheral surface 9c is the length between the side 9m on the upper surface 9a side and the side 9k on the back surface 9b side of the outer peripheral surface 9c. In this way, the two openings 9g and 9h are arranged in the middle of the height of the outer peripheral surface 9c, so that the connecting portion 9e is also arranged in the middle of the height of the outer peripheral surface 9c.

In this way, by arranging the connecting portion 9e on the outer peripheral surface 9c at a distance from the back surface 9b, the portion near the case 3a of the band 3 is separated from the human body while the human body communication device 1 is attached to the human body. Can be done. The case neighborhood portion 3a is a portion in the band 3 near the case 9. As a result, it is possible to reduce the capacitive coupling of the reference electrode 32 in the band 3 with the human body. Further, by arranging the two openings 9g and 9h in the center of the height of the outer peripheral surface 9c, the internal space S1 of the case 9 is divided into two upper and lower internal spaces (upper internal space S2 and lower) by the tubular wall portion 91. It is partitioned into the side internal space S3).

In the present embodiment, the circuit board 8 is housed in the upper internal space S2 of the case 9, and the hot electrode 6 and the parallel plate electrode 7 are housed in the lower internal space S3 of the case 9. As described above, the hot electrode 6 is arranged behind the opening 9d of the case 9 in the lower internal space S3. The parallel plate electrode 7 is arranged below the cylinder wall portion 91 in the lower internal space S3. In the present embodiment, the apparatus main body 2 further has a substrate 13. The substrate 13 is housed in the lower internal space S3 of the case 9. A parallel plate electrode 7 is fixed to the main surface on the upper side (cylinder wall portion 91 side) of the main surfaces on both sides of the substrate 13, and the main surface on the lower side (opening 9d side) of the substrate is hot. The electrode 6 is fixed. That is, the hot electrode 6 and the parallel plate electrode 7 are integrated together with the substrate 13 and housed in the lower internal space S3. The circuit board 8 is connected to the parallel plate electrode 7 and the hot electrode 6 by a connecting member such as a lead wire or a flexible substrate. This connecting member passes through a space formed beside the cylinder wall portion 91 so as to connect the upper internal space S2 and the lower internal space S3.

As shown in FIG. 3, the fixing hole 9f is provided on the back surface 9b of the case 9 at the edge of one of the two openings 9g and 9h on the side of the opening 9h. The fixing hole 9f is provided at a predetermined position (for example, the center) in the longitudinal direction at the edge of the back surface 9b of the case 9 (see FIG. 1B). The fixing hole 9f extends from the back surface 9b of the case 9 along the thickness direction of the case 9, crosses the through hole 9i, and is connected to the upper internal space S2 of the case 9.

As shown in FIG. 3, the case 9 is divided into a first case portion 93, a second case portion 94, and a third case portion 95. That is, the case 9 is divided into three portions 93 to 95 in the thickness direction of the case 9. The first case portion 93 is a portion on the upper side (upper surface 9a side) of the cylinder wall portion 91 in the case 9 in the thickness direction of the case 9. The second case portion 94 is a portion below the cylinder wall portion 91 in the case 9 (back surface 9b side) in the thickness direction of the case 9. The third case portion 95 is a portion between the first case portion 93 and the second case portion 94.

The first case portion 93, the second case portion 94, and the third case portion 95 are fixed to each other with screws. More specifically, the screw N1 (see FIG. 1B) is screwed into the first case portion 93 from the four corners of the back surface of the second case portion 94 through the second case portion 94 and the third case portion 95. There is. As a result, the first case portion 93, the second case portion 94, and the third case portion 95 are fixed to each other.

The fixing component 10 is a component that is detachably inserted into a fixing hole 9f formed in the back surface 9b of the case 9 to prevent the band 3 from coming off from the connecting portion 9e of the case 9. In other words, the fixing component 10 is a component that fixes the band 3 to the connecting portion 9e of the case 9.

As shown in FIG. 2B, the fixing component 10 has a pin portion 10a and a head portion 10b. The pin portion 10a has a rod shape. A groove portion 10c is provided on the tip end side of the pin portion 10a. The groove portion 10c is a portion that is hooked on a hook portion provided inside the fixing hole 9f of the case 9. The groove portion 10c is provided on the tip end side of the pin portion 10a over the entire circumferential direction of the pin portion 10a. The head portion 10b is provided at the base end portion of the pin portion 10a and projects to the outer peripheral side of the pin portion 10a.

As shown in FIG. 1B, the head portion 10b of the fixing component 10 is exposed on the back surface 9b of the case 9 in the vicinity of the hot electrode 6. Therefore, when the device main body 2 is attached to the human body, the head portion 10b of the fixing component 10 is arranged at a position close to the surface of the human body or at a position where it comes into contact with the human body. Therefore, it is preferable that the fixing component 10 is formed of resin. As the fixing component 10, for example, an elastomer or the like is used. This makes it possible to reduce the capacitive coupling between the reference electrode 32 and the human body. Therefore, it is possible to suppress the signal output from the hot electrode 6 to the human body from flowing to the reference electrode 32 via the fixing component 10. The fixing component 10 is not limited to the structure formed of the resin, and may be made of a metal material. In this case, the bonding strength between the apparatus main body 2 and the band 3 is improved.

As shown in FIGS. 2A and 3, the band 3 includes a band main body 31 (mounting device main body), a reference electrode 32, and a protrusion component 33. The band body 31 is the body of the band 3. The reference electrode 32 is an electrode for obtaining a reference potential, and is also called a cold electrode. The reference electrode 32 is embedded inside the band body 31.

The band body 31 is formed in a band shape by, for example, a resin member having rubber elasticity (for example, an elastomer). The band main body 31 can be curved toward both main surfaces of the band main body 31 along the longitudinal direction thereof. As shown in FIGS. 2A and 3, the band main body 31 has a plurality of small holes 31a, an annular portion 31b, a stepped hole 31c, a positioning portion 31d, a through hole 31e, and a rib 31f (see FIG. 1B). And a stepped portion 31z, 31v (see FIG. 1B).

The plurality of small holes 31a are holes into which the protrusions 33 are inserted and penetrate in the thickness direction of the band main body 31. The plurality of small holes 31a are arranged between the central portion 31s and the proximal end portion 31T in the longitudinal direction of the band main body 31, and are arranged in the longitudinal direction of the band main body 31. The central portion 31s is a portion connected to the apparatus main body 2. The annular portion 31b is a portion into which the band main body 31 is inserted from the tip portion 31U side. The annular portion 31b is provided at the base end portion 31T of the band main body 31.

The stepped hole 31c is a hole to which the protrusion portion 33 is connected. The stepped hole 31c is provided near the tip portion 31U of the band main body 31. The stepped hole 31c penetrates in the thickness direction of the band body 31. The stepped hole 31c has a large diameter portion and a small diameter portion. The diameter of the large diameter portion is larger than the diameter of the small diameter portion. The large diameter portion is a portion of the stepped hole 31c on the surface 31k side of the band main body 31, and is a concave portion formed by being recessed from the surface 31k of the band main body 31. The small diameter portion is a through hole formed in a portion of the stepped hole 31c on the back surface 31r side of the band main body 31, and penetrates from the bottom of the large diameter portion to the back surface 31r of the band main body 31.

The positioning portion 31d is a portion for positioning the connection position of the band main body 31 with the case 9. The positioning portions 31d are provided at both ends in the width direction of the band 3 in the vicinity of the central portion 31s in the longitudinal direction of the band 3, and project outward in the width direction of the band 3. The through hole 31e is a hole through which the fixing component 10 passes, and penetrates in the thickness direction of the band main body 31. The through hole 31e is provided at a predetermined position in the central portion 31s of the band main body 31.

The protrusion 33 is detachably attached to the stepped hole 31c of the band body 31 to form a protrusion 33a (see FIG. 1B) protruding from the back surface 31r of the band body 31. With the tip portion 31U of the band main body 31 passed through the annular portion 31b, the protrusion 33a is hooked on the desired small hole 31a among the plurality of small holes 31a, so that the band main body 31 becomes annular and the human body. Can be wrapped around a part of.

As shown in FIG. 2C, the protrusion portion 33 has a shaft portion 33b, a head portion 33c, and a flange portion 33d. The head 33c is provided at the base end portion of the shaft portion 33b and projects toward the outer peripheral side of the shaft portion 33b. The flange portion 33d is provided at the tip end portion of the shaft portion 33b and projects toward the outer peripheral side of the shaft portion 33b. The protrusion 33 is attached to the stepped hole 31c, the head 33c fits into the large diameter portion of the stepped hole 31c, and the tip of the shaft portion 33b penetrates the through hole of the small diameter portion of the stepped hole 31c. Then, it protrudes to the back surface 31r side of the band main body 31. The protruding portion constitutes the protrusion 33a.

As shown in FIG. 5, the reference electrode 32 is a conductive member having conductivity (for example, copper or a copper alloy) and is formed in a thin plate shape (for example, a flat plate shape) so as to have flexibility. As the reference electrode 32, a metal foil such as a copper foil may be used. The reference electrode 32 can be curved toward both main surfaces thereof along its longitudinal direction. The plan view shape of the reference electrode 32 is a band shape that is one size smaller than the plan view shape of the band body 31. The reference electrode 32 is arranged inside the band main body 31 from the vicinity of the tip portion 31U in the longitudinal direction of the band main body 31 to the vicinity of the proximal end portion 31T.

The reference electrode 32 has a notch 32a and a through hole 32b. The cutout portion 32a is a portion of the reference electrode 32 that is cut out so as not to overlap with the plurality of small holes 31a. The cutout portion 32a has, for example, a plan view band shape, and is formed along the longitudinal direction of the reference electrode 32 from one end portion 32T of the reference electrode 32 toward the central portion 32s. The central portion 32s is a portion that overlaps with the central portion 31s of the band main body 31 in the thickness direction of the band main body 31. The reference electrode 32 may be configured to have a through hole having a diameter larger than the diameter of the small hole 31a at a position not overlapping with each of the plurality of small holes 31a instead of the notch portion 32a.

The through hole 32b is a hole through which the fixing component 10 passes, and penetrates in the thickness direction of the reference electrode 32. The through hole 32b is provided at a predetermined position in the central portion 32s of the reference electrode 32. The through hole 32b is connected to the through hole 31e of the band main body 31. The diameter of the through hole 32b is larger than the diameter of the through hole 31e (see FIG. 4). Further, the diameter of the through hole 32b is larger than the diameter of the pin portion 10a (see FIG. 2B) of the fixing component 10. With this configuration, the capacitive coupling between the reference electrode 32 and the human body can be reduced. That is, even when the fixing component 10 is made of a metal material, it is possible to suppress the signal output from the hot electrode 6 to the human body from flowing to the reference electrode 32 via the fixing component 10.

In the present embodiment, as shown in FIG. 5, the band main body 31 is divided into a first band main body portion 31p and a second band main body portion 31q. That is, the band main body 31 is divided into two portions 31p and 31q in the thickness direction of the band main body 31. The first band main body portion 31p is a portion of the band main body 31 on the surface 31k side in the thickness direction. The second band main body portion 31q is a portion of the band main body 31 on the back surface 31r side in the thickness direction. The reference electrode 32 is arranged so as to be sandwiched between the first band main body 31p and the second band main body 31q.

The small hole 31a is also divided into two portions (first small hole portion 61a and second small hole portion 61b) in the thickness direction of the band main body 31. The annular portion 31b is also divided into two portions (first annular portion 62a and second annular portion 62b) in the thickness direction of the band main body 31. The stepped hole 31c is also configured to be divided into two portions (first stepped hole 63a and second stepped hole 63b) in the thickness direction of the band main body 31. The positioning portion 31d is also divided into two portions (first positioning portion 64a and second positioning portion 64b) in the thickness direction of the band main body 31. The through hole 31e is also configured to be divided into two portions (first through hole 65a and second through hole 65b) in the thickness direction of the band main body 31.

As shown in FIG. 4, the rib 31f is a portion that secures a distance between the reference electrode 32 and the human body in the band main body 31 in a state where the band 3 is attached to the human body. The rib 31f can reduce the capacitive coupling between the reference electrode 32 and the human body. The rib 31f protrudes from the back surface 31r of the band main body 31 (see FIG. 1B). The back surface 31r is a facing surface (band-side facing surface (device body-side facing surface)) facing a part of the human body in a state where the band 3 is wound around a part of the human body. The ribs 31f are provided along the edges on both sides of the back surface 31r of the band body 31 in the width direction. The ribs 31f are provided in the range H1 between the central portion 31s and the vicinity 31w of the tip portion 31U and the range H2 between the central portion 31s and the annular portion 31b in the longitudinal direction of the back surface 31r of the band main body 31. There is. The central portion 31s is a portion connected to the case 9.

The stepped portions 31z and 31v are portions protruding stepwise from the back surface 31r of the band main body 31. The stepped portion 31z is provided in a portion of the back surface 31r of the band main body 31 that overlaps with the central portion 31s. The stepped portion 31v is provided in a portion of the back surface 31r of the band main body 31 that overlaps with the vicinity of the tip portion 31U 31w. The stepped portions 31z and 31v are formed at the same height as the rib 31f. The stepped portion 31v can prevent the end portion of the rib 31f on the tip portion 31U side from being caught by the annular portion 31b when the band main body 31 is passed from the tip portion 31U side into the annular portion 31b. Further, the stepped portion 31z can fill the gap between the central portion 31s of the band main body 31 and the openings 9g and 9h of the case 9 in a state where the band 3 is connected to the case 9. Further, when the band 3 is replaced by the stepped portion 31z when the band 3 is pulled out from the case 9 or when the band 3 is attached to the case 9, the end portion of the rib 31f on the central portion 31s side is the case. It is possible to prevent the 9 from being caught in the opening 9g.

Next, a procedure (connecting method) for connecting the apparatus main body 2 and the band 3 will be described with reference to FIGS. 1A to 3.

As shown in FIG. 2A, first, the protrusion component 33 is removed from the stepped hole 31c of the band 3. Then, the tip portion 31U of the band 3 is inserted into the through hole 9i (see FIG. 3) through one opening portion 9h of the case 9. Then, as shown in FIG. 1A, the band 3 is inserted into the through hole 9i until the central portion 31s of the band 3 is arranged in the through hole 9i. When the central portion 31s of the band 3 is arranged in the through hole 9i, the positioning portion 31d of the band 3 comes into contact with the peripheral edge of the opening portion 9h of the case 9. As a result, the relative positions of the band 3 and the case 9 are positioned. In this positioning state, the through hole 31e of the band 3 is connected to the fixing hole 9f of the case 9 (see FIG. 3). In this state, as shown in FIG. 3, the fixing component 10 is inserted into the fixing hole 9f of the case 9. As a result, the pin portion 10a of the fixing component 10 penetrates the through hole 31e of the band 3, and the groove portion 10c at the tip of the pin portion 10a is caught in the inner portion of the fixing hole 9f of the case 9. As a result, the fixing component 10 is detachably attached to the case 9, and the band 3 is prevented from coming off from the case 9. That is, the band 3 is fixed to the case 9. Then, the protrusion portion 33 is detachably attached to the stepped hole 31c of the band 3 (see FIGS. 1A and 1B).

In the state where the band 3 is connected to the apparatus main body 2 in this way, as shown in FIG. 3, the parallel plate electrode 7 in the case 9 and the reference electrode 32 in the band 3 face each other and are capacitively coupled to each other. do. From the viewpoint of capacitive coupling, the distance between the parallel plate electrode 7 and the reference electrode 32 should be small. Further, in this state, the hot electrode 6, the parallel plate electrode 7, and the reference electrode 32 are arranged in this order from the back surface 9b (opposing surface) side of the case 9 along the thickness direction of the case 9 (direction orthogonal to the facing surface). Lined up. Further, the band main body 31 has two drawer portions 31L and 31R drawn from both sides of the case 9.

When removing the band 3 from the main body 2, the protruding component 33 is removed from the stepped hole 31c of the band 3, and the fixing component 10 is removed from the fixing hole 9f of the case 9. Then, the band 3 is pulled from the base end portion 31T side of the band 3, and the band 3 is pulled out from the through hole 9i of the case 9. As a result, the band 3 is removed from the device main body 2.

Next, the procedure for wrapping the band 3 around a part of the human body will be described.

As shown in FIG. 6, first, the tip portion 31U of the band main body 31 is passed through the annular portion 31b from the back side (back surface 31r side) of the band main body 31. Then, the protrusion 33a of the band main body 31 is hooked from the front side (surface 31k side) of the band main body 31 to a desired small hole 31a among the plurality of small holes 31a of the band main body 31. Thereby, the band 3 can be wound around a part (for example, an arm) B1 of the human body. In this state, the hot electrode 6 exposed from the opening 9d of the back surface 9b of the case 9 comes into contact with the part B1 of the human body and capacitively couples with the part B1 of the human body. Further, the connecting portion 9e is provided in the case 9 at a distance from the back surface 9b of the case 9 in the thickness direction of the case 9. Therefore, it is possible to secure a space between the case vicinity portion 3a of the band 3 and the part B1 of the human body. As a result, the capacitive coupling between the reference electrode 32 (see FIG. 3) in the band 3 and the part B1 of the human body can be reduced.

As described above, according to the human body communication device 1 according to the present embodiment, since the case 9 includes a connecting portion 9e that is detachably connected to the band 3, the case 9 and the band 3 can be mechanically connected detachably. Further, since the device main body 2 includes a connection portion (for example, a parallel plate electrode) 7 that is electrically connected to and detachably connected to the reference electrode 32, the circuit board 8 and the reference electrode 32 are electrically connected and detachably connected. Can be connected with. As a result, the device main body 2 and the band 3 can be mechanically detachably connected and can be connected separately by electrical connection. As a result, even if the human body communication device 1 includes the reference electrode 32 in the band 3, the band 3 can be easily replaced.

Further, since the connecting portion 7 is connected to the reference electrode 32 by capacitive coupling, the connecting portion 7 can be connected to the reference electrode 32 by a non-contact connection. Therefore, the reference electrode 32 can be sealed inside the band body 31. As a result, it is possible to suppress the generation of rust and the manufacturing cost of the reference electrode 32. Further, the structure of the connecting portion 9e becomes a simple structure, and the band 3 can be easily replaced.

Since the diameter of the flange portion 33d is larger than the diameter of the small hole 31a, when the flange portion 33d is inserted into the small hole 31a, the flange portion 33d expands the small hole 31a and inserts the flange portion 33d. Since the human body communication device 1 is repeatedly attached to and detached from the human body, the protrusion 33a is repeatedly inserted into the small hole 31a. Therefore, the small hole 31a is liable to be deformed or damaged. Even in such a case, the user can easily replace the band 3 without using a special tool or the like. Further, since the band 3 has a simple structure and can be manufactured at low cost, the user can easily purchase a band having many colors and patterns. Therefore, the user can also change the band 3 depending on, for example, the clothes of the day or the mood at that time. Furthermore, if the user is a fan of an idol group, it can be exchanged for a belt of a shade (also called a personal color) assigned to a member of the idol group.

Further, since the connecting portion 7 is a parallel plate electrode that is capacitively coupled to the reference electrode 32, a non-contact connection between the connecting portion 7 and the reference electrode 32 can be realized with a simple structure. Since the reference electrode 32 and the parallel plate electrode 7 are arranged so as to face each other, the facing area can be increased. Therefore, the coupling force of the capacitive coupling between the reference electrode 32 and the parallel plate electrode 7 can be improved.

Further, according to the band 3 according to the present embodiment, the band used in the human body communication device 1 is provided with the band main body 31 and the reference electrode 32, so that the human body communication device 1 having the above-mentioned effect can be used. Can provide a contributing band.

Further, the device main body 2 according to the present embodiment is the device main body used in the human body communication device 1, and has the hot electrode 6, the connection portion 7, the circuit board 8, and the case 9, and thus has the above-mentioned effect. It is possible to provide a device main body that contributes to the human body communication device 1.

(Variation example of Embodiment 1)
Hereinafter, a modified example of the first embodiment will be described. The following modifications may be implemented in combination.

(Modification 1)
In the first embodiment, the reference electrode 32 has a flat plate shape, but the shape of the reference electrode 32 is not limited to the flat plate shape. As shown in FIG. 7, the reference electrode 32 may have a protruding portion 32d protruding stepwise on the side of the parallel plate electrode 7.

In this case, the reference electrode 32 has a reference electrode main body 32c and a protruding portion 32d. The reference electrode main body 32c is the main body of the reference electrode 32, and is formed in the same manner as the reference electrode 32 of the first embodiment. The protruding portion 32d is provided in a portion of the back surface 32w of the reference electrode main body 32c facing the parallel plate electrode 7 so as to project stepwise toward the parallel plate electrode 7. The reference electrode main body 32c and the protruding portion 32d are formed of the same conductive member and are integrally formed with each other. The reference electrode main body 32c and the protruding portion 32d may be configured separately and electrically connected. The surface (the surface on the parallel plate electrode 7 side) 31z1 of the stepped portion 31z of the central portion 31s of the band main body 31 is flat as in the case of the first embodiment. In this case, the inner surface (the surface on the protruding portion 32d side) 31i of the stepped portion 31z of the central portion 31s of the band main body 31 has a recess 31g recessed toward the parallel plate electrode 7 at a position corresponding to the protruding portion 32d. Is formed.

According to this modification, the distance between the reference electrode 32 and the parallel plate electrode 7 can be made smaller by the protruding portion 32d of the reference electrode 32. As a result, the coupling force of the capacitive coupling between the reference electrode 32 and the parallel plate electrode 7 can be improved. Further, even if the protruding portion 32d is provided, the surface 31z1 of the stepped portion 31z of the central portion 31s of the band main body 31 is flat. Therefore, even if the protruding portion 32d is provided, the band main body 31 can be smoothly inserted into the through hole 9i of the case 9.

(Modification 2)
In the first embodiment, the reference electrode 32 is arranged over a range from the tip end portion 31U side to the base end portion 31T side of the band main body 31. That is, the band main body 31 has two drawer portions 31L and 31R drawn from both sides of the case 9, and the reference electrode 32 has two drawer portions 31L from the central portion 31s connected to the case 9 in the band main body 31. , 31R (see FIG. 3). However, the range in which the reference electrode 32 is arranged is not limited in this way. As shown in FIG. 8, in the band main body 31, the reference electrode 32 is only on the side of one of the two drawer portions 31L and 31R (for example, the drawer portion 31L) from the central portion 31s connected to the case 9. It may be placed in.

According to this modification, the reference electrode 32 can be provided only in one of the two drawers 31L and 31R drawn out on both sides of the apparatus main body 2 (for example, the drawer 31L). In this case, when the two drawer portions 31L and 31R are wound around a part B1 of the human body, the other drawer portion (for example, the drawer portion 31R) is placed between one drawer portion (for example, the drawer portion 31L) and the part B1 of the human body. Can be placed in. Thereby, the other drawer portion (for example, the drawer portion 31R) can be used as a spacer for ensuring a larger distance between the reference electrode 32 and the part B1 of the human body. As a result, the capacitive coupling between the reference electrode 32 and the human body can be reduced.

(Modification 3)
In the first embodiment, the connection portion 7 is configured as an electrode (parallel plate electrode) capacitively coupled to the reference electrode 32 as an example of non-contact connection with the reference electrode 32, but the connection portion 7 and the reference electrode 32 The non-contact connection method is not limited to capacitive coupling. For example, the non-contact connection method between the connection portion 7 and the reference electrode 32 may be magnetic coupling (that is, magnetic connection). In this case, the connecting portion 7 is configured as a coil. On the other hand, the reference electrode 32 includes a coil that can be magnetically coupled to the coil of the connection portion 7.

Further, the non-contact connection method between the connection portion 7 and the reference electrode 32 may be optical coupling (that is, optical connection). In this case, the connection portion 7 includes one of a light emitting element and a light receiving element. On the other hand, the reference electrode 32 includes the other of the light emitting element and the light receiving element. The light emitting element is an element that emits light, and the light receiving element is an element that energizes when the light emitted by the light emitting element is received.

In the present embodiment, the case where the connection portion 7 and the reference electrode 32 are connected to each other in a non-contact manner has been described, but they may be electrically connected to each other by contacting each other. In this case, a part of the reference electrode 32 (the part electrically connected to the connecting portion 7) is exposed from the band main body 31. The connection portion 7 is also exposed from the case 9.

(Modification example 4)
In the first embodiment, the case where the wearing device 3 is a band-shaped band and is a band that is connected in a ring shape and is worn on a part of the human body at the time of wearing is exemplified, but the wearing device 3 is such a band. Not limited to. For example, the mounting device 3 is formed of, for example, resin or the like in an annular or arcuate shape (in other words, a C-shaped side view) that can be mounted around a part of the human body, and is in that shape. It may be attached to a part of the human body.

(Embodiment 2)
In the first embodiment, the connecting portion 9e is a penetrating type connecting portion that allows the band 3 to penetrate the case 9 from the tip portion 31U side of the band 3, but in the present embodiment, the connecting portion 9e bandes the band 3. It is a horizontal insertion type connecting portion to be inserted into the case 9 from the side of 3.

As shown in FIGS. 9A and 9B, the connecting portion 9e of the present embodiment has a concave groove portion 20 into which the band 3 can be inserted from the side side 31h of the band 3. The concave groove portion 20 is provided on the outer surface (for example, the outer peripheral surface 9c) of the case 9. More specifically, the concave groove portion 20 is parallel to the back surface 9b of the case 9 from one side surface 9s to the opposite side surface 9u among the four side surfaces 9s, 9t, 9u, 9v of the outer peripheral surface 9c. It is dented in a concave shape. The depth F1 of the groove portion 20 is the same as the width F2 of the band 3 or larger than the width F2. The concave groove portion 20 has an opening 20a on the side surface 9s of the outer peripheral surface 9c. Both ends of the concave groove portion 20 are open at two opposing side surfaces 9t and 9v on the outer peripheral surface 9c. In other words, openings 20e and 20f are provided on the two side surfaces 9t and 9v of the outer peripheral surface 9c, and both ends of the concave groove portion 20 are connected to the openings 20e and 20f provided on the two side surfaces 9t and 9v. ing. The concave groove portion 20 extends straight from the side surface 9t toward the side surface 9v. The openings 20a and 20e are connected to each other, the openings 20a and 20f are connected to each other, and the three openings 20a, 20e and 20f form one opening straddling the three side surfaces 9s, 9u and 9v. are doing.

The case 9 has a U-shaped wall portion 92 inside (see FIG. 9B). The U-shaped wall portion 92 is a wall portion that is curved in a U-shape in the thickness direction in a side view. The U-shaped wall portion 92 is provided in the case 9 so that the peripheral end portion thereof is connected to the peripheral end portion of the opening 20a of the concave groove portion 20. The inner surface of the concave groove portion 20 is formed by the inner surface of the U-shaped wall portion 92. The U-shaped wall portion 92 is provided in a portion of the case 9 facing the band 3 in a state where the band 3 is inserted into the concave groove portion 20 (that is, a state in which the connecting portion 9e and the band 3 are connected). .. The U-shaped wall portion 92 divides the space inside the case 9 and the space inside the concave groove portion 20 to prevent the inside of the case 9 from being exposed to the outside from the concave groove portion 20.

In the present embodiment, the back surface 9b of the case 9 is provided with two fixing holes. The two fixing holes are provided on the side edges of the two opposite side surfaces 9t and 9v of the back surface 9b. Further, the band 3 is also provided with two through holes 31e into which the fixing component 10 is inserted. The band 3 of the present embodiment has a positioning portion 31d only on one of the side sides 31h on both sides in the width direction (the side inserted into the concave groove portion 20).

Next, the connection procedure (connection method) between the apparatus main body 2 and the band 3 will be described with reference to FIGS. 9A and 9B.

One side side 31h of the band 3 is inserted into the concave groove portion 20 from the side surface 9s side of the case 9. At that time, the band 3 is inserted until it comes into contact with the inner surface of the concave groove portion 20. In this state, the positioning portion 31d of the band 3 comes into contact with the side surface 9u of the case 9 (see FIG. 9A). In this way, the band 3 comes into contact with the inner surface of the concave groove portion 20 and the positioning portion 31d of the band 3 comes into contact with the side surface 9t of the case 9, so that the relative positions of the apparatus main body 2 and the band 3 are positioned. Will be done. In this state, the central portion 31s of the band 3 is sandwiched between the concave groove portions 20. In this state, the fixing component 10 is inserted from the back surface 9b side of the case 9 into the fixing hole of the back surface 9b of the case 9. This prevents the band 3 from coming off the concave groove portion 20. That is, the band 3 is fixed to the concave groove portion 20.

According to this modification, by inserting the band 3 into the concave groove portion 20 from the side side 31h of the band 3, the band 3 and the concave groove portion 20 (connecting portion 9e) can be connected to each other with a simple structure.

(Modified Example of Embodiment 2)
(Modification 1)
In the second embodiment, as shown in FIGS. 10A and 10B, the band body 31 may further have a recess 25, and the case 9 may further have a protrusion 26. The recess 25 is provided so as to be recessed on the back surface 31r side of the band main body 31, and the bottom surface of the recess 25 is a flat surface. The protrusion 26 is a protrusion having a hat-shaped cross section that fits into the recess 25. The protrusion 26 is provided so as to project from the lower inner side surface (that is, the inner side surface on the connection portion 7 side) 20d of the concave groove portion 20, and the tip surface of the protrusion 26 is a flat surface. Then, the parallel plate electrode 7 may be arranged on the back side of the protrusion 26. As a result, the parallel plate electrode 7 can be brought closer to the reference electrode 32 in the band body 31. As a result, the coupling force of the capacitive coupling between the parallel plate electrode 7 and the reference electrode 32 can be improved.

More specifically, as shown in FIGS. 10A and 10B, the recess 25 is a portion facing the protrusion 26 (for example, the central portion of the band body 31) in a state where the band 3 is connected to the recess 20 of the case 9. It is provided on the surface of 31s).

As shown in FIG. 10A, the protrusion 26 is provided on the facing portion 20b of the lower inner side surface 20d of the concave groove portion 20 facing the parallel plate electrode 7. The protrusion 26 projects from the lower inner side surface 20d of the concave groove portion 20 toward the upper inner side surface 20c. The plan view shape of the protrusion 26 is one size larger than the plan view shape of the parallel plate electrode 7. On the back side of the protrusion 26 having a hat-shaped cross section, a concave portion 27 having a concave shape is provided. The bottom surface of the recess 27 is flat. The parallel plate electrode 7 is housed and arranged in the recess 27.

In this modification, when the band 3 is connected to the concave groove portion 20 of the case 9, the protrusion 26 of the case 9 fits into the concave portion 25 of the band 3. Since the parallel plate electrode 7 is arranged in the recess 27 on the back side of the protrusion 26, the reference electrode 32 is arranged closer to the parallel plate electrode 7 by fitting the protrusion 26 into the recess 27. As a result, as described above, the coupling force of the capacitive coupling between the reference electrode 32 and the parallel plate electrode 7 can be improved.

In this modification, since the three openings 20a, 20e, and 20f are connected to one, the concave groove portion 20 can elastically widen the distance between the lower inner side surface 20d and the upper inner side surface 20c. be. Therefore, even if the protrusion 26 is provided on the lower inner side surface 20d of the concave groove portion 20 and the concave portion 25 is provided on the back surface 31r side of the band 3, the side side 31h of the band 3 is smoothly inserted into the concave groove portion 20. It is possible.

(Embodiment 3)
In the first embodiment, the connecting portion 9e is provided in the case 9 of the band 3 and the case 9, but as shown in FIGS. 11A to 13, in the present embodiment, the connecting portion 9e is the band 3 and the case 9. Of these, the band 3 is provided.

More specifically, as shown in FIG. 13, the apparatus main body 2 of the present embodiment has a connecting portion 9e (that is, two openings 9g, 9h, a through hole 9i, and a cylinder wall portion) in the apparatus main body 2 of the first embodiment. 91 and the fixing hole 9f) are omitted. Further, in the apparatus main body 2 of the present embodiment, the substrate 13 is omitted in the apparatus main body 2 of the first embodiment, but the configuration may include the substrate 13 as in the first embodiment. Further, in the apparatus main body 2 of the present embodiment, the parallel plate electrode 7 is provided not on the upper surface of the substrate 13 but on the upper surface of the circuit board 8. Further, in the apparatus main body 2 of the present embodiment, of the back surface 9b of the case 9, the peripheral edge portion 9r is stepped toward the upper surface 9a side from the central portion 9w (see FIG. 12). The central portion 9w is a region inside the peripheral edge portion 9r, includes the opening portion 9d of the case 9, and is a range slightly wider than the opening portion 9d.

As shown in FIGS. 11A to 12, the band 3 of the present embodiment has a configuration in which the band 3 of the first embodiment is changed to a so-called patchon band and further includes a connecting portion 9e.

A patchon band is a band that maintains a linear state along the long axis when it is not curved by an external force, and when it is curved toward the back surface side of the band by an external force, the band autonomously follows the long axis toward the back surface side of the band. It is a band that curves in an arc shape. This property can be used to easily wrap the band around a part of the human body.

More specifically, as shown in FIGS. 11 and 12, the band 3 of the present embodiment includes a band main body 31, a reference electrode 32, a metal plate 42 for a patchon band, and a connecting portion 9e. ..

The band body 31 of the present embodiment is formed in the shape of a strip-shaped thin plate by, for example, a resin member (for example, an elastomer). The reference electrode 32 of the present embodiment is formed of a conductive member having conductivity, and has a strip-shaped thin plate shape that is one size smaller than the band main body 31. The reference electrode 32 is embedded inside the band main body 31 along the longitudinal direction of the band main body 31.

The metal plate 42 is made of a metal having a spring property, and is in the shape of a strip-shaped thin plate that is one size smaller than the band body 31. In this embodiment, the reference electrode 32 is composed of a metal plate 42. That is, the reference electrode 32 is also used by the metal plate 42. The metal plate 42 and the reference electrode 32 may be configured separately from each other. In this case, the metal plate 42 and the reference electrode 32 are arranged so as to be overlapped with each other in the thickness direction of the band 3. At that time, the reference electrode 32 is arranged on the back surface side (connecting portion 9e) of the band 3 with respect to the metal plate 42.

The metal plate 42 has a long axis G1 and a short axis G2 that are orthogonal to each other in a plan view (see FIG. 11A). The long axis G1 is an axis along the longitudinal direction of the metal plate 42. The short axis G2 is an axis along the short side direction of the metal plate 42 in a plan view. The metal plate 42 maintains a linear state along the long axis G1 in a state where it is not curved by an external force. When the metal plate 42 is curved along the long axis G1 on the back surface side (connecting portion 9e side) of the metal plate 42 by an external force, the long axis G1 is on the back surface side of the metal plate 42 by the elastic recovery force of the metal plate 42. It curves in an arc along. Due to this property, the band 3 functions as a patchon band.

More specifically, the metal plate 42 stores a shape curved in an arc shape on the back side (connecting portion 9e side) of the metal plate 42 along the long axis G1. Further, the metal plate 42 stores a shape curved in an arc shape on the front side (the side opposite to the connecting portion 9e) of the metal plate 42 along the short axis G2. In a state where the metal plate 42 is elastically deformed linearly along the long axis G1 by an external force (long axis linear state), the metal plate 42 bends to the front side of the metal plate 42 along the short axis G2. As a result, the above-mentioned long axis G1 linear state is maintained. Further, when the metal plate 42 is elastically deformed linearly along the short axis G2 by an external force, the metal plate 42 is circularly formed on the back side of the metal plate 42 along the long axis G1 by the elastic return force (that is, autonomously). Curves in an arc. Due to the arcuate curvature due to this elastic return force, the band 3 (hence, the band 3) can be wound around a part of the human body.

As shown in FIG. 12, the connecting portion 9e has a connecting base 50, a recess 51, and a flange portion 52.

The connecting table 50 is a table portion to which the device main body 2 is detachably connected, and is provided at a predetermined position (for example, the back surface 31r) of the band main body 31. The back surface 31r is a surface of the main surfaces on both sides of the band body 31 facing the human body with the band 3 attached to the human body. The connecting base 50 is formed of, for example, an elastic resin member (for example, an elastomer), and is, for example, a rectangular parallelepiped shape (for example, a rectangular parallelepiped shape having a rectangular parallelepiped view). The recess 51 is a portion where the device main body 2 is detachably fitted, and is provided at a predetermined position (for example, the lower surface 50b) of the connecting table 50. The lower surface 50b of the connecting table 50 is a surface of the connecting table 50 opposite to the band 3 side. The flange portion 52 is a portion that is hooked on the peripheral edge of the back surface (that is, the back surface of the case 9) 9b of the device main body 2 housed in the recess 51. By catching the flange portion 52 on the peripheral edge of the back surface 9b of the case 9, it is possible to prevent the apparatus main body 2 from being unexpectedly removed from the recess 51. The flange portion 52 projects from the inner peripheral edge of the opening 51a of the recess 51 to the inside of the opening 51a, and is provided over the entire circumference of the inner peripheral edge of the opening 51a. The apparatus main body 2 is housed in the recess 51 with the upper surface 9a facing the bottom side of the recess 51 and the back surface 9b facing the opening 51a side of the recess 51.

In the present embodiment, as shown in FIGS. 11B and 13, when the apparatus main body 2 is housed in the recess 51 of the connecting table 50, the back surface 9b of the apparatus main body 2 faces the opening 51a of the recess 51. , The hot electrode 6 is exposed from the opening 51a. Further, the parallel plate electrode 7 of the main body 2 and the reference electrode 32 of the band 3 face each other and are capacitively coupled (see FIG. 13). Further, the flange portion 52 of the connecting portion 9e is caught on the peripheral edge portion 9r of the back surface 9b of the case 9, so that the apparatus main body 2 is prevented from unexpectedly coming out of the recess 51. Further, the lower surface 50a of the connecting table 50 and the central portion 9w of the back surface 9b of the case 9 are flat with each other, so that the hot electrode 6 can easily come into contact with the human body (see FIG. 13).

Further, as shown in FIG. 14, in a state where the human body communication device 1 of the present embodiment is attached to a part (for example, an arm) B1 of the human body (that is, a state in which the band 3 is wound around a part B1 of the human body). The device main body 2 is arranged between the band 3 and a part B1 of the human body. In this state, the hot electrode 6 of the apparatus main body 2 comes into contact with a part B1 of the human body. Further, since the apparatus main body 2 is interposed between the band 3 and the part B1 of the human body, it is possible to secure the distance between the portion 3y near the connecting portion of the band 3 and the part B1 of the human body. As a result, the capacitive coupling between the reference electrode 32 in the band 3 and the part B1 of the human body can be reduced. The portion near the connecting portion 3y is a portion near the connecting portion 9e in the band 3.

According to this embodiment, the connecting table 50 is provided in the band main body 31, and the device main body 2 is detachably fitted in the recess 51 of the connecting table 50 so that the device main body 2 and the band 3 can be attached to each other in a simple configuration. Can be connected to each other.

In the present embodiment, the band main body 31 and the connecting portion 9e are integrally formed with each other, but they may be configured differently from each other and fixed to each other with screws or the like.

Further, in the present embodiment, the flange portion 52 of the connecting table 50 suppresses the unexpected removal of the device main body 2 from the recess 51, but the means for suppressing the unexpected removal of the device main body 2 from the recess 51 is described above. The method is not limited to the means using the flange portion 52 of the above. For example, one of the protrusion and the recess is provided on the inner peripheral surface of the recess 51, the other of the protrusion and the recess is provided on the outer peripheral surface of the apparatus main body 2, and the recess and the protrusion are fitted so that the recess 51 is fitted. The device main body 2 may be suppressed from being unexpectedly removed from the device.

In addition, Embodiments 1 to 3 (including a modification) may be carried out in combination.

(summary)
The human body communication device (1) according to the first aspect includes a mounting device (3) and a device main body (2). The mounting device (3) is mounted on a part of the human body (B1). The device main body (2) communicates using the human body as at least a part of the communication medium. The mounting device (3) has a mounting device main body (31) and a reference electrode (32). The reference electrode (32) is provided on the mounting device main body (31). The apparatus main body (2) has a hot electrode (6), a connection portion (7), a circuit board (8), and a case (9). The hot electrode (6) is capacitively coupled to the human body in a state where the mounting device (3) is mounted on a part (B1) of the human body. The connection portion (7) is detachably connected to the reference electrode (32) using at least one connection method of electrical connection, magnetic connection and optical connection. The circuit board (8) is electrically connected to the hot electrode (6) and the connection portion (7). The case (9) is provided with a hot electrode (6), a connection portion (7), and a circuit board (8). One of the case (9) and the mounting device (3) has a connecting portion (9e) that is detachably connected to the other.

According to this configuration, one of the case (9) and the mounting device (3) is provided with a connecting portion (9e) that is detachably connected to the other, so that the case (9) and the mounting device (3) are connected. It can be mechanically detachably connected. Further, the apparatus main body (2) includes a connection portion (7) that is separably connected to the reference electrode (32) by using at least one connection method of electrical connection, magnetic connection, and optical connection. .. Therefore, the circuit board (8) and the reference electrode (32) can be connected and separably connected by using at least one connection method of electrical connection, magnetic connection, and optical connection. As a result, the device body (2) and the mounting device (3) can be mechanically detachably connected and separated by using at least one connection method of electrical connection, magnetic connection, and optical connection. Can be connected. As a result, in the human body communication device (1) in which the mounting device (3) is provided with the reference electrode (32), the mounting device (3) can be easily replaced.

In the human body communication device (1) according to the second aspect, in the first aspect, the connection portion (7) is connected to the reference electrode (32) in a non-contact manner.

According to this configuration, the reference electrode (32) can be sealed inside the mounting instrument main body (31). As a result, it is possible to suppress the generation of rust and the manufacturing cost of the reference electrode (32). In addition, the structure of the connecting portion (9e) is simplified, and the mounting device (3) can be easily replaced.

In the human body communication device (1) according to the third aspect, in the second aspect, the connection portion (7) is an electrode that is capacitively coupled to the reference electrode (32).

According to this configuration, a non-contact electrical connection between the connection portion (7) and the reference electrode (32) can be realized with a simple structure.

In the human body communication device (1) according to the fourth aspect, in the third aspect, the reference electrode (32) has a reference electrode main body (32c) and a protrusion (32d). The protruding portion (32d) protrudes toward the connecting portion (7) at the portion facing the connecting portion (7) in the reference electrode main body (32c).

According to this configuration, the distance between the reference electrode (32) and the connection portion (7) can be made smaller by the protruding portion (32d) of the reference electrode (32). As a result, the coupling force of the capacitive coupling between the reference electrode (32) and the connecting portion (7) can be improved.

In the human body communication device (1) according to the fifth aspect, in any one of the first to fourth aspects, the mounting device main body (31) has the mounting device (3) as a part (B1) of the human body. It has a mounting device side facing surface (31r) facing a part of the human body (B1) in the mounted state. The mounting device main body (31) has a rib (31f) protruding from the mounting device side facing surface (31r) on the mounting device side facing surface (31r).

According to this configuration, when the mounting device (3) is mounted on a part (B1) of the human body, the mounting device main body is provided with a rib (31f) on the mounting device side facing surface (31r) of the mounting device main body (31). It is possible to secure a larger distance between the device-side facing surface (31r) of (31) and a part of the human body (B1). As a result, a larger distance between the reference electrode (32) and a part of the human body (B1) can be secured. As a result, the coupling force of the capacitive coupling between the reference electrode (32) and the human body can be reduced.

In the human body communication device (1) according to the sixth aspect, in any one of the first to fifth aspects, in the case (9), the wearing device (3) is attached to a part (B1) of the human body. It has a case-side facing surface (9b) facing the human body in a closed state. The connecting portion (9e) is arranged in the case (9) at a distance from the case-side facing surface (9b).

According to this configuration, with the mounting device (3) mounted on a part (B1) of the human body, the portion (3a, 3a, near the connecting portion (9e) (that is, the case (9)) in the mounting device (3). 3y) can be moved further away from the human body. As a result, the coupling force of the capacitive coupling between the reference electrode (32) and the human body can be reduced.

In the human body communication device (1) according to the seventh aspect, in any one of the first to sixth aspects, in the case (9), the wearing device (3) is attached to a part (B1) of the human body. It has a case-side facing surface (9b) facing the human body in a closed state. The hot electrode (6), the connection portion (7), and the reference electrode (32) are arranged in this order from the side of the case-side facing surface (9b) to the direction orthogonal to the case-side facing surface (9b).

According to this configuration, the reference electrode (32) of the hot electrode (6), the connection portion (7) and the reference electrode (32) is arranged farthest from the case-side facing surface (9b) of the case (9). can. As a result, the reference electrode (32) of the hot electrode (6), the connection portion (7) and the reference electrode (32) can be arranged farthest from the human body. As a result, the coupling force of the capacitive coupling between the reference electrode (32) and the human body can be reduced.

In the human body communication device (1) according to the eighth aspect, in any one of the first to seventh aspects, the case (9) is in a state where the connecting portion (9e) and the mounting device (3) are connected. A wall portion (91, 92) is provided at a portion facing the mounting device (3).

According to this configuration, it is possible to reduce the exposure of the inside of the case (9) from the connecting portion (9e). The airtightness of the case (9) can be improved.

In the human body communication device (1) according to the ninth aspect, in any one of the first to eighth aspects, the connecting portion (9e) has two openings (9g, 9h) and a through hole (9i). ) And. The two openings (9g, 9h) are provided on the outer surface (9c) of the case (9), and the mounting device (3) can be inserted. The through hole (9i) connects the two openings (9g, 9h).

According to this configuration, by inserting the mounting device (3) into the through hole (9i) of the case (9), the mounting device (3) and the connecting portion (9e) can be connected to each other with a simple structure.

In the human body communication device (1) according to the tenth aspect, in any one of the first to eighth aspects, the connecting portion (9e) has a concave groove portion (20). The concave groove portion (20) is provided on the outer surface (9c) of the case (9), and the mounting device (3) can be inserted. Both ends of the concave groove portion (20) are connected to openings (20e, 20f) provided on the outer surface (9c) of the case (9).

According to this configuration, by inserting the mounting device (3) into the concave groove portion (20) from the side side (31h) of the mounting device (3), the mounting device (3) and the connecting portion (9e) have a simple structure. ) Can be connected to each other.

In the human body communication device (1) according to the eleventh aspect, in any one of the first to eighth aspects, the connecting portion (9e) has a connecting table (50) and a recess (51). .. The connecting base (50) is provided on the mounting device main body (31). The recess (51) is provided on the connecting table (50) and is a portion to which the apparatus main body (2) is detachably fitted.

According to this configuration, the connecting base (50) is provided on the mounting device main body (31), and the device main body (2) is detachably fitted in the recess (51) of the connecting base (50), so that the configuration is simple. , The device body (2) and the mounting device (3) can be connected to each other.

In the human body communication device (1) according to the twelfth aspect, in any one of the first to eleventh aspects, the wearing device (3) has a long axis (G1) and a short axis (G1) orthogonal to each other in a plan view. It is a band having G2). The mounting device (3) maintains a linear state along the long axis (G1) when it is not curved by an external force. When the mounting device (3) is curved to the back surface (31r) side of the mounting device (3) by an external force, it is curved to the back surface (31r) side of the mounting device (3) in an arc shape along the long axis (G1). do.

According to this configuration, the wearing device (3) can be easily attached to a part (B1) of the human body.

In the human body communication device (1) according to the thirteenth aspect, in any one of the first to twelfth aspects, the wearing device main body (31) has two drawer portions (31L, 31R). The two drawer portions (31L, 31R) are pulled out from both sides of the case (9) with the mounting device main body (31) connected to the case (9). The reference electrode (32) is arranged only on the side of one of the two drawers (31L, 31R) from the portion (31s) connected to the case (9) in the mounting device main body (31). ing.

According to this configuration, the reference electrode (32) can be provided only in one of the two drawer portions (31L, 31R) drawn out on both sides of the apparatus main body (2). In this case, when the two drawers (31L, 31R) are wound around a part (B1) of the human body, the other drawer is arranged between the one drawer and the human body. Thereby, the other drawer portion can be used as a spacer for ensuring a larger distance between the reference electrode (32) and a part of the human body (B1).

The wearing device (3) according to the fourteenth aspect is the wearing device used in the human body communication device (1) according to any one of the first to thirteenth aspects. The mounting device (3) includes a mounting device main body (31) and a reference electrode (32).

According to this configuration, it is possible to provide a wearing device that contributes to the human body communication device (1) that exerts the above effect.

The device main body (2) according to the fifteenth aspect is the device main body used in the human body communication device (1) according to any one of the first to thirteenth aspects. The apparatus main body (2) has a hot electrode (6), a connection portion (7), a circuit board (8), and a case (9).

According to this configuration, it is possible to provide a device main body (2) that contributes to the human body communication device (1) that exhibits the above effects.

1 Human body communication device 2 Device body 3 Band (wearing device)
6 Hot electrode 7 Parallel plate electrode (connection part)
8 Circuit board 9 Case 9b Back side (case side facing side)
9c Outer surface (outer surface)
9e Connecting part 9g, 9h Opening part 9i Through hole 20 Concave groove part 20e, 20f Opening 31 Band body (mounting device body)
31f rib 31h side side 31r back side (equipment side facing surface)
31s Central part 31T Base end part 31U Tip part 31L, 31R Drawer part 32 Reference electrode 32c Reference electrode body 32d Protruding part 50 Connecting base 51 Recessed part 91 Cylinder wall part (wall part)
92 U-shaped wall part (wall part)
B1 Part of the human body G1 long axis G2 short axis

Claims (15)

Wearing equipment that is attached to a part of the human body,
A device main body that communicates using the human body as at least a part of a transmission medium is provided.
The mounting device is
The main body of the mounting device and
It has a reference electrode provided on the mounting device body, and has
The main body of the device is
A hot electrode that is capacitively coupled to the human body while the mounting device is attached to the part of the human body.
A connection that is separably connected to the reference electrode using at least one of an electrical connection, a magnetic connection, and an optical connection.
A circuit board electrically connected to the hot electrode and the connection portion,
It has the hot electrode, the connection portion, and the case where the circuit board is provided.
One of the case and the mounting device has a connecting portion that is detachably connected to the other.
Human body communication device. The connection portion is connected to the reference electrode in a non-contact manner.
The human body communication device according to claim 1. The connection portion is an electrode that is capacitively coupled to the reference electrode.
The human body communication device according to claim 2. The reference electrode is
With the reference electrode body,
The reference electrode body has a protruding portion protruding toward the connecting portion from a portion facing the connecting portion.
The human body communication device according to claim 3. The mounting device main body has a mounting device side facing surface facing the part of the human body in a state where the mounting device is mounted on the part of the human body.
The mounting device main body has a rib protruding from the mounting device side facing surface on the mounting device side facing surface.
The human body communication device according to any one of claims 1 to 4. The case has a case-side facing surface facing the human body with the mounting device mounted on the part of the human body.
In the case, the connecting portion is arranged at a distance from the case-side facing surface.
The human body communication device according to any one of claims 1 to 5. The case has a case-side facing surface facing the human body with the mounting device mounted on the part of the human body.
The hot electrode, the connection portion, and the reference electrode are arranged in this order in a direction orthogonal to the case-side facing surface from the case-side facing surface side.
The human body communication device according to any one of claims 1 to 6. The case has a wall portion at a portion facing the mounting device in a state where the connecting portion and the mounting device are connected to each other.
The human body communication device according to any one of claims 1 to 7. The connecting part is
Two openings provided on the outer surface of the case into which the mounting device can be inserted, and
It has a through hole connecting the two openings.
The human body communication device according to any one of claims 1 to 8. The connecting part is
It has a concave groove portion provided on the outer surface of the case and into which the mounting device can be inserted.
Both ends of the recessed groove are connected to openings provided on the outer surface of the case.
The human body communication device according to any one of claims 1 to 8. The connecting part is
With the connecting stand provided on the mounting device body,
It has a recess provided on the connecting table and into which the apparatus main body is detachably fitted.
The human body communication device according to any one of claims 1 to 8. The mounting device is a band having a long axis and a short axis that are orthogonal to each other in a plan view.
The mounting device maintains a linear state along the long axis when it is not curved by an external force, and when it is curved toward the back surface side of the mounting device by an external force, the mounting device is curved along the long axis on the back surface side of the mounting device. Curves in an arc,
The human body communication device according to any one of claims 1 to 11. The mounting device body is
With the mounting device body connected to the case, it has two drawers drawn from both sides of the case.
The reference electrode is arranged only on the side of one of the two drawers from the portion connected to the case in the mounting device main body.
The human body communication device according to any one of claims 1 to 12. A wearing device used in the human body communication device according to any one of claims 1 to 13.
With the mounting device body
With the reference electrode.
Wearing equipment. The main body of the device used in the human body communication device according to any one of claims 1 to 13.
With the hot electrode
With the connection part
With the circuit board
With the above case,
The case has the connecting portion.
The main body of the device.

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