JP4818973B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device configured by connecting a plurality of housings, for example, a mobile terminal device capable of improving antenna gain.

An example of a conventional communication device is described in Patent Document 1. The communication device described in the document can be connected to a printed circuit board provided in the first housing and a printed circuit board provided in the second housing, so that both housings can be opened and closed (can be twisted). A hinge portion to be connected is provided, and the interval between the conductor portions of the two printed circuit boards is placed at a predetermined interval for capacitive coupling, and the hinge portion is insulated from one of the two housing members. Thus, a decrease in antenna gain is prevented by electrically coupling two printed boards together.
JP 2004-134976 A

  However, in the case of a portable terminal configured with a plurality of casings as in a conventional communication device, the casing state (length, etc.) viewed from an antenna is generally determined according to the state of the plurality of casings. It was difficult to keep the gain of the antenna above a certain level because it changed.

  In the conventional communication device, the first printed circuit board and the second printed circuit board are capacitively coupled to the distance between the printed circuit board of the first housing and the printed circuit board of the second housing. There is a need to keep the distance from the printed circuit board below a certain level. As a result, there is a problem that mechanical constraints are imposed on components that can be arranged in the housing, and the degree of freedom in design is limited.

  The present invention has been made in view of the above, and as its purpose, in a communication device configured by connecting a plurality of casings, while suppressing deterioration of antenna gain, the degree of freedom in design in the casing is increased. An object of the present invention is to provide a communication device capable of suitably suppressing being controlled.

In order to solve the above problems, a mobile terminal device according to the present invention includes a first housing in which a first circuit board is disposed, and a second housing in which a second circuit board is disposed. The one end of the first housing and the one end of the second housing are rotatably connected, and are arranged on at least one of the connecting portion including the hinge mechanism and the first housing and the second housing. In a portable terminal device, wherein the first casing and the second casing can be opened and closed, a metal attached to a case inner surface on the one end side of the first casing Adhesive member, and a conductive member that conducts the reference potential portion of the first circuit board and the adhesive member , the conductive member has at least a cover portion that covers the outside of the hinge mechanism, JP that spring contact portions of the attachment member and the elastic contact with the cover portion is provided To.

  In the portable terminal device, it is preferable that the attachment member is disposed at a facing portion of the first housing that faces the second housing in an open state.

  In the mobile terminal device, the first casing is arranged by being overlapped in the casing thickness direction with the one end side of the second casing with the one end side in the open state, It is preferable that it is a site | part which opposes a said 2nd housing | casing in the site | part which overlaps with the one end side of the said 2nd housing | casing in the said open state.

  In the mobile terminal device, it is preferable that the second housing has a metallic member disposed in a portion facing the facing portion in the open state.

  In the portable terminal device, the first circuit board and the second circuit board are electrically connected by a wiring member, and the wiring member is connected to the connection portion at one end of the first housing. Preferably, the attachment member is disposed on one side, and the attachment member is disposed on the other side of one end of the first housing.

Moreover, in the said portable terminal device, it is preferable that the said metallic member is a speaker.

Moreover, in the said portable terminal device, it is preferable that the said adhesion member is a vapor deposition film vapor-deposited on the said case inner surface of the said 1st housing | casing.

  In the mobile terminal device, it is preferable that the antenna is disposed in the first housing.

  ADVANTAGE OF THE INVENTION According to this invention, also in the communication apparatus comprised by connecting a some housing | casing, it suppresses suitably that the freedom degree in the design in a housing | casing is restrict | limited, suppressing the deterioration of an antenna gain suitably. be able to.

  The best mode for carrying out the present invention will be described below with reference to the drawings. Hereinafter, a mobile phone device will be described as an example of a mobile terminal device, but the present invention is not limited to this, and a PHS (Personal Handy Phone System), a PDA (Personal Digital Assistant), a portable navigation device, a notebook It may be another portable terminal device provided with an antenna such as a personal computer.

<First Embodiment>
FIG. 1 is an external perspective view of a mobile phone device 1 that is an example of a mobile terminal device according to the present invention that communicates with a host device (eg, a base station).

  The cellular phone device 1 has a front panel 2a, a front case 2b, a rear case 2c, and a rear panel 2d (not shown) on the surface, and a front panel 3a. , A front case 3b, a rear case 3c, and a rear panel 3d, and a display unit side body 3 (second housing).

  The operation unit side body unit 2 has an operation button group 11 and a voice input unit 12 to which a voice uttered by a user of the mobile phone device 1 is input on the surface of the front panel 2a. The operation button group 11 includes a function setting operation button 13 for operating various functions such as various settings, a telephone book function, and a mail function, and an input operation for inputting a telephone number and characters such as mail. The button 14 and a determination operation button 15 for performing determination and scrolling in various operations are configured. Further, a cap that covers an interface for communicating with an external device (for example, a host device) is provided on the side surface of the operation unit side body unit 2.

  Further, the display unit side body unit 3 exposes, on the front panel 3a, a display 21 for displaying various information and an audio output unit 22 for outputting the voice of the other party on the call.

  As shown in FIG. 1, the upper end of the operation unit side body 2 and the lower end of the display unit side body 3 are connected via a hinge mechanism 4 (connection unit). That is, the hinge mechanism 4 connects the one end side (upper end part) of the operation unit side body part 2 and the one end side (lower end part) of the display part side body part 3 so as to be rotatable. In addition, the mobile phone device 1 moves the operation unit side body unit 2 and the display unit side body unit 3 connected to each other via the hinge mechanism 4 to display the operation unit side body unit 2 and the display. The unit-side housing 3 is folded (a first state and a folded state that overlap each other), or the operation unit-side housing 2 and the display unit-side housing 3 are opened to each other (the degree of overlapping) In the second state, which is lower than the folded state, or the open state). In the present embodiment, the foldable mobile phone device 1 using the hinge mechanism 4 is described. However, the foldable mobile phone device 1 is not foldable. A sliding type that is slid on the axis, a rotary type that is configured to rotate one casing around an axis along the overlapping direction, and a configuration in which both casings 2 and 3 are connected via a biaxial hinge. Good.

  FIG. 2 is a perspective view of the cellular phone device 1 in a folded state. The operation unit side body unit 2 includes, on one side surface, a side key 30 to which a predetermined function is assigned, and an interface cap 31 in which external memory is inserted and removed. A slide key 32 is provided on one side surface of the display unit side body 3. On the surface of the front case 3b of the display unit side body 3, a camera 33 for imaging a subject and a light 34 for irradiating the subject with light are exposed.

  FIG. 3 is an exploded perspective view of members built in the operation unit side body 2. As shown in FIG. 3, the operation unit side body 2 includes a front panel 2a, a front case 2b (in this figure, the front panel 2a and the front case 2b are coupled), and the operation button group described above. 11, a printed circuit board 50 (first circuit board) provided with various electronic components such as a RF (Radio Frequency) module for the mobile phone device 1, a flexible wiring board 45, a flexible wiring board 45, and a mobile phone device 1. Hinge mechanism 4 (4a, 4b), antenna element 55, short-range communication antenna element 56, rear case 2c, and rear panel 2d for protecting battery 60 are provided.

  In the operation unit side body 2, the front case 2b, the key sheet 40, the printed circuit board 50, and the rear case 2c are arranged in a stacked manner. The battery 60 is accommodated so as to be detachable from the outside of the rear panel 2d.

  As shown in FIG. 3, the front case 2 b and the rear case 2 c are arranged so that their concave inner surfaces face each other, and are joined so that their outer peripheral edges overlap each other. In addition, the key sheet 40 and the printed circuit board 50 are built in between the front case 2b and the rear case 2c. That is, the key sheet 40 is laminated on the upper surface of the printed board 50.

  Various electronic components (not shown) are arranged on the printed circuit board 50. Various electronic components form a plurality of circuit blocks by a predetermined combination. For example, various circuit blocks including a wireless circuit, a power supply circuit, a digital circuit, and the like are formed.

  A plurality of key holes are formed on the inner surface of the front panel 2a facing the display 21 of the display unit side body 3 in a state in which the cellular phone device 1 is folded. From each of the plurality of key holes, the pressing surfaces of the function setting operation button 13, the input operation button 14 and the determination operation button 15 formed on the key sheet 40 are exposed. By pressing the pressing surfaces of the function setting operation button 13, the input operation button 14 and the determination operation button 15 constituting the exposed operation button group 11 so as to depress, a metal dome (a bowl shape) in each corresponding key switch. The top of the switch is pressed and contacts the switch terminal to conduct electricity.

  An antenna element 55 (antenna) housed in the base is disposed on the other end side of the rear case 2c opposite to the hinge mechanism 4. That is, the antenna element 55 is disposed on the other end side of the mobile phone device 1. Specifically, the antenna element 55 is disposed on the end side opposite to the hinge mechanism 4 side in the mobile phone device 1. The antenna element 55 is formed of a strip-shaped sheet metal.

  The antenna element 55 is an antenna that transmits and receives electromagnetic waves related to telephone calls, e-mails, and the like, and is fed from the printed circuit board 50 through a feed terminal (not shown). As a result, the antenna element 55 is supplied with power from the printed circuit board 50 via the power supply terminal and is connected to an RF module or the like provided on the printed circuit board 50. In the present embodiment, the position of the antenna element 55 is provided at one end of the rear case 2c. However, the antenna element 55 may be disposed at any location inside the operation unit side body 2. Further, the position of the antenna element 55 may be arranged at any location inside the display unit side body 3.

  FIG. 4 is an exploded perspective view of members built in the display unit side body 3. As shown in FIG. 4, the display unit side body 3 is connected to the front panel 3a, the front case 3b, the hinge mechanism 4, the speakers 70a and 70b, the motor 75, the display 21, and the display 21. A printed circuit board 80 (second circuit board), a rear case 3c, and a rear panel 3d. In the display unit side body 3, the front panel 3a, the front case 3b, the display 21, the printed circuit board 80, the rear case 3c, and the rear panel 3d are stacked.

  As shown in FIG. 4, the front case 3 b and the rear case 3 c are arranged so that their concave inner surfaces face each other, and are joined so that their outer peripheral edges overlap each other. Further, the display 21 and the printed circuit board 80 are built in between the front case 3b and the rear case 3c. Speakers 70 a and 70 b and motor 75 are connected to printed circuit board 80.

  5 is a perspective view showing details of the vicinity of the hinge mechanism 4, FIG. 6 is a perspective view showing a vapor deposition film 9 formed on the operation unit side body 2 corresponding to the conductive member 6, and FIG. FIG. 8 is a perspective view of the conductive member 6, and FIG. 8 is a perspective view of the conductive member 6.

  As shown in FIGS. 5 to 8, the conductive member 6 has a three-dimensional shape by being formed by press punching a thin metal plate. The conducting member 6 includes a curved cover portion 6a that covers the outside of the hinge mechanism 4 and a fitting portion 6b that is connected to the cover portion 6a. The fitting portion 6 b covers and fits the support block 61 formed at one end of the operation portion side housing portion 2. A spring contact portion 62 is integrally formed with the cover portion 6a, and a convex contact portion 63 is integrally formed with the fitting portion 6b. In this structure, the conductive member 6 covers substantially the entire hinge mechanism 4. There is a dead space around the hinge mechanism 4 of the operation unit side body 2, and the conductive member 6 has a shape that can be disposed in this dead space. Therefore, no new space is required to arrange the conductive member 6.

  The spring contact portion 62 is provided with a spring property by being provided so as to stand upward from the cover portion 6a. The spring contact portion 62 constitutes a contact at two points in parallel. The convex contact portion 63 is formed on a spring piece portion 64 that rises obliquely. Therefore, both the spring contact portion 62 and the convex contact portion 63 have a spring force and come into contact with corresponding portions.

  With respect to the spring contact part 62, the operation part side body part 2 is provided with a metal vapor deposition film 9 (attachment member) (see FIGS. 6, 9, and 10). The vapor deposition film 9 is formed on the inner surface of the rear case 2c of the operation unit side body 2 at a portion corresponding to the conductive member 6, and the spring contact portion 62 of the conductive member 6 contacts and is electrically connected. The As shown in FIG. 6, the vapor deposition film 9 is formed so as to cover the inner surface of the rear case 2 c corresponding to the entire upper part of the hinge mechanism 4. As a result, the vapor deposition film 9 is provided at a position facing the operation unit side body 2 facing the display unit side body 3. Since the spring contact portion 62 is a two-point contact with respect to the vapor deposition film 9, even if the inner surface of the rear case 2c has a three-dimensional shape, the vapor deposition film 9 and the spring contact portion 62 are Can contact reliably. The convex contact part 63 contacts and is electrically connected to a reference potential part pattern (not shown) formed on the lower surface of the printed circuit board 50.

  FIG. 9 and FIG. 10 explain characteristic operational effects in the cellular phone device 1 of the present embodiment. 9 and 10, when the operation unit side body 2 and the display unit side body 3 are in the open state, one end (upper end) of the operation unit side body 2 and the display unit side. One end (lower end) of the casing 3 is superposed in the thickness direction. In the polymerization in such an open state, the vapor deposition film 9 is at a position facing the display unit side body 3.

  As shown in FIGS. 9 and 10, the printed circuit board 50 is disposed on the rear case 2 c of the operation unit side body 2, and the printed circuit board 80 and the display 21 are disposed on the rear case 3 c of the display unit side body 3. And are arranged. An antenna element 55 for receiving radio waves is disposed at the other end (lower end) of the operation unit side body 2. Speakers 70 a and 70 b (metal members) that have a conductive part such as metal and are electrically connected to the printed circuit board 80 are disposed at one end (lower end) of the display unit side body 3.

  As shown in FIG. 10, one end of a coaxial cable 90 (wiring member) made up of a plurality of signal lines and shield wires is inserted on the printed circuit board 50 of the operation unit side body 2 between the hinge mechanisms 4 and a connector. The other end of the coaxial cable 90 is connected to the printed circuit board 80 of the display unit side body 3 via a connector 95b. A spring contact portion 62 electrically connected to the reference potential portion pattern of the printed circuit board 50 through the conductive member 6 is connected to one end on the opposite side of the antenna element 55 disposed in the operation portion side housing portion 2. The vapor deposition film 9 is disposed at a position facing the speakers 70 a and 70 b, and the vapor deposition film 9 is electrically connected to the printed circuit board 50.

  As shown in FIG. 9, when the operation unit side body 2 and the display unit side body 3 are opened, one end (upper end) of the operation unit side body 2 and the display unit side body 3 is polymerized in the thickness direction (the vapor deposition film 9 and the speaker 70a face each other in the thickness direction with a predetermined interval), so that the vapor deposition film 9 and the speaker 70a are capacitively coupled. Therefore, a high frequency current can propagate between the vapor deposition film 9 and the speaker 70a. Here, when a radio wave arrives by propagating in the air from the host device, the antenna element 55 provided in the mobile phone device 1 resonates and induces a high frequency current. When the operation unit side body unit 2 and the display unit side body unit 3 are in the open state, the high frequency current induced by the incoming wave W is transmitted from the antenna element 55 to the printed circuit board 50, the spring contact unit 62, and the vapor deposition. Propagated to the membrane 9, the speaker 70a, and the printed circuit board 80, an electrical high-frequency ground is formed. A schematic state at this time is shown as high-frequency currents W1, W2, W3, W4, and W5 in FIG.

  In addition, the 800 MHz band and 2 GHz band radio waves used for mobile phone communication, in principle, propagate through the entire printed circuit board and metal. The high-frequency current propagation path on the mobile phone device 1 is mainly divided into two systems as shown in FIG.

  FIG. 10 is a perspective view showing a main part inside the mobile phone device 1. In FIG. 9, the interval between the vapor deposition film 9 and the speaker 70a is L1, and in FIG. 10, the coaxial cable 90 in the hinge mechanism 4 is shown in order to show that the coaxial cable 90 propagates high-frequency current. The routing is shown for convenience. Therefore, in FIG. 10, the distance between the vapor deposition film 9 and the speaker 70 a is described as L2, but in reality, L1 = L2.

  As shown in FIG. 10, when the incoming wave W is resonated by the antenna element 55 provided in the mobile phone device 1, one propagates the path between the vapor-deposited film 9 and the speaker 70 a that are capacitively coupled, On the other hand, two electric high-frequency grounds are formed by propagating through a path through the coaxial cable 90.

  That is, when the operation unit side body unit 2 and the display unit side body unit 3 are in the open state, the incoming wave W is resonated by the antenna element 55 provided in the mobile phone device 1 and a high frequency current is induced. In one case, the electric field lines are formed between the feeding point P11 of the antenna element 55 to the end point P12 of the printed circuit board 50, the end point P13 of the printed circuit board 50, the spring contact portion 62, the deposited film 9, and the deposited film 9. Propagation to the coupled speaker 70a, the end point P14 of the printed circuit board 80, the end point P15 of the printed circuit board 80, and the end point P16 of the printed circuit board 80 forms an electrical high-frequency ground.

  At the same time, when the operation unit side body 2 and the display unit side body 3 are in the open state, the incoming wave W is resonated by the antenna element 55 provided in the mobile phone device 1 to induce a high frequency current. In the case, the other is from the feeding point P21 of the antenna element 55 to the end point P22 of the printed circuit board 50, the end point P23, the connector 95a connected to the printed circuit board 50, the coaxial cable 90, and the connector 95b connected to the printed circuit board 80. The electric high frequency ground is formed by being propagated to the end point P24 of the printed circuit board 80, the end point P25 of the printed circuit board 80, and the end point P26 of the printed circuit board 80.

  In this way, in the present invention, the vapor deposition film 9 is formed on the inner surface of the rear case 2c of the operation unit side body 2 at the portion corresponding to the conductive member 6, and the operation unit side body 2 and the display unit side housing are formed. When the body part 3 is in the open state, one end part (upper end part) of the operation part side body part 2 and one end part (lower end part) of the display part side body part 3 are polymerized in the thickness direction (deposition film) 9 and the speaker 70a face each other in the thickness direction after a predetermined interval), so that two electrical high-frequency grounds are formed, and the length of the propagation path on the printed circuit board viewed from both systems in high frequency. That is, the propagation path on the ground side of the high-frequency current induced in the antenna element 55 is substantially the same (symmetric in the housing width direction), and the propagation path on the ground side of the high-frequency radio current is not distorted. 1 can be used as an antenna, Can Na gain is appropriately suppressed.

  That is, since the conductive member 6 (spring contact portion 62), the vapor deposition film 9 and the speaker 70a are provided in the space between the printed board 50 and the printed board 80, the electrical formed on one end face through the coaxial cable 90 is provided. In addition to the high-frequency ground path, it is possible to secure an electrical high-frequency ground path formed on the other end face through the capacitive coupling of the metal between the vapor deposition film 9 and the speaker 70a. For this reason, since the electrical ground can be formed symmetrically in the width direction of the casing even in the opened state, the propagation path on the ground side of the high-frequency radio wave current does not become distorted and is electrically only on one end face through the coaxial cable 90. A good antenna gain can be obtained as compared with the case where no high frequency path is formed.

  Moreover, in this embodiment, since the conducting member 6 covers substantially the entire hinge mechanism 4, the impedance of the conducting member 6 can be kept low, and high antenna characteristics can be ensured. Further, since the conducting member 6 is disposed in a dead space around the hinge mechanism 4, no new space is required to arrange the conducting member 6, and the degree of freedom in designing the hinge mechanism 4 is improved. can do. Moreover, since the attachment of the conducting member 6 is performed by fitting the concave and convex shape of the hinge mechanism 4, a member for adhesion and attachment becomes unnecessary.

<Second Embodiment>
11 and 12 are diagrams showing a mobile phone device 151 as a second embodiment of a mobile terminal device that communicates with a host device (for example, a base station) according to the present invention.

  As shown in FIGS. 11 and 12, the antenna element 55 is disposed at a position close to the hinge mechanism 4 of the operation unit side body 2. The hinge mechanism 4 is provided with a conducting member 6, the convex contact portion 63 of the conducting member 6 contacts the reference potential portion pattern of the printed board 50, and the spring contact portion 62 of the operation unit side body portion 2. It is in contact with the vapor deposition film 9. Thereby, the printed circuit board 50 and the vapor deposition film 9 are electrically connected.

  As shown in FIG. 11, when the operation unit side body 2 and the display unit side body 3 are opened, one end (upper end) of the operation unit side body 2 and the display unit side body 3 is polymerized in the thickness direction (the vapor deposition film 9 and the speaker 70a face each other in the thickness direction with a predetermined interval), so that the vapor deposition film 9 and the speaker 70a are capacitively coupled. Therefore, a high frequency current can propagate between the vapor deposition film 9 and the speaker 70a. Here, when a radio wave arrives by propagating in the air from the host device, the antenna element 55 provided in the mobile phone device 1 resonates and induces a high frequency current. When the operation unit side body unit 2 and the display unit side body unit 3 are in the open state, the high frequency current induced by the incoming wave W is transmitted from the antenna element 55 to the printed circuit board 50, the spring contact unit 62, and the vapor deposition film. 9. Propagated to the speaker 70a and the printed circuit board 80 to form an electrical high frequency ground. A schematic state at this time is shown as high-frequency currents W6, W7, and W8 in FIG.

  In addition, the 800 MHz band and 2 GHz band radio waves used for mobile phone communication, in principle, propagate through the entire printed circuit board and metal. The propagation path of the high-frequency current on the mobile phone device 1 is mainly divided into two systems as shown in FIG.

  FIG. 12 is a perspective view showing a main part inside the mobile phone device 1. In FIG. 11, the interval between the vapor deposition film 9 and the speaker 70a is L1, and in FIG. 12, the coaxial cable 90 in the hinge mechanism 4 is shown to indicate that the coaxial cable 90 propagates high-frequency current. The routing is shown for convenience. Therefore, in FIG. 12, although the interval between the vapor deposition film 9 and the speaker 70a is described as L2, in reality, L1 = L2.

  As shown in FIG. 12, when the incoming wave W is resonated by the antenna element 55 provided in the mobile phone device 1, one propagates the path between the vapor-deposited film 9 and the speaker 70 a that are capacitively coupled, On the other hand, two electric high-frequency grounds are formed by propagating through a path through the coaxial cable 90.

  That is, when the operation unit side body unit 2 and the display unit side body unit 3 are in the open state, the incoming wave W is resonated by the antenna element 55 provided in the mobile phone device 1 and a high frequency current is induced. In one case, the electric field lines are formed between the feeding point P11 of the antenna element 55 to the end point P12 of the printed circuit board 50, the end point P13 of the printed circuit board 50, the spring contact portion 62, the deposited film 9, and the deposited film 9. Propagation to the coupled speaker 70a, the end point P14 of the printed circuit board 80, the end point P15 of the printed circuit board 80, and the end point P16 of the printed circuit board 80 forms an electrical high-frequency ground.

  At the same time, when the operation unit side body 2 and the display unit side body 3 are in the open state, the incoming wave W is resonated by the antenna element 55 provided in the mobile phone device 1 to induce a high frequency current. In the case, the other is from the feeding point P21 of the antenna element 55 to the end point P22 of the printed circuit board 50, the connector 95a connected to the printed circuit board 50, the coaxial cable 90, the connector 95b connected to the printed circuit board 80, the printed circuit board. The electric high frequency ground is formed by being propagated to the end point P24 of 80, the end point P25 of the printed circuit board 80, and the end point P26 of the printed circuit board 80.

  In this way, in the present invention, the vapor deposition film 9 is formed on the inner surface of the rear case 2c of the operation unit side body 2 at the portion corresponding to the conductive member 6, and the operation unit side body 2 and the display unit side housing are formed. When the body part 3 is in the open state, one end part (upper end part) of the operation part side body part 2 and one end part (lower end part) of the display part side body part 3 are polymerized in the thickness direction (deposition film) 9 and the speaker 70a face each other in the thickness direction after a predetermined interval), so that two electrical high-frequency grounds are formed, and the length of the propagation path on the printed circuit board viewed from both systems in high frequency. That is, the propagation path on the ground side of the high-frequency current induced in the antenna element 55 is substantially the same (symmetric in the housing width direction), and the propagation path on the ground side of the high-frequency radio current is not distorted. 1 can be used as an antenna, Can Na gain is appropriately suppressed.

  That is, since the conductive member 6 (spring contact portion 62), the vapor deposition film 9 and the speaker 70a are provided in the space between the printed board 50 and the printed board 80, the electrical formed on one end face through the coaxial cable 90 is provided. In addition to the high-frequency ground path, it is possible to secure an electrical high-frequency ground path formed on the other end face through the capacitive coupling of the metal between the vapor deposition film 9 and the speaker 70a. For this reason, since the electrical ground can be formed symmetrically in the width direction of the casing even in the opened state, the propagation path on the ground side of the high-frequency radio wave current does not become distorted and is electrically only on one end face through the coaxial cable 90. A good antenna gain can be obtained as compared with the case where no high frequency path is formed.

  In the above embodiment, the member that is capacitively coupled to the vapor deposition film 9 of the operation unit side body 2 is the speaker 70a, and the speaker 70a is provided in the display unit side body 3. The member to be capacitively coupled to the display unit may be formed by vapor-depositing a metal on the facing portion of the display unit side body unit 3 or attaching a metal film.

1 shows an external perspective view of a mobile phone device that is a first embodiment of a mobile terminal device that communicates with a host device according to the present invention. It is a figure which shows the perspective view of the state which folded the mobile telephone apparatus. FIG. 6 is an exploded perspective view of a member built in the operation unit side body unit 2. FIG. 6 is an exploded perspective view of members built in the display unit side body 3. It is a perspective view which shows the attachment state of a conduction member. It is a partially broken perspective view explaining the part which formed the vapor deposition film. It is an expansion perspective view which shows the arrangement | positioning state of a conduction member. It is a perspective view which shows a conduction member. It is sectional drawing explaining the effect | action of 1st Embodiment. It is a perspective view explaining the effect | action of 1st Embodiment. It is sectional drawing explaining the effect | action of the mobile telephone apparatus which is 2nd Embodiment of the portable terminal device which communicates with the host device which concerns on this invention. It is a perspective view explaining the effect | action of 2nd Embodiment.

Explanation of symbols

  2 ... operation unit side body, 2a ... front panel, 2b ... front case, 2c ... rear case, 2d ... rear panel, 3 ... display side housing, 3c ... rear case, 3a ... front panel, 3b ... front K, 3c ... rear case, 3d ... rear panel, 4 ... hinge mechanism, 6 ... conducting member, 9 ... vapor deposition film, 50 ... printed circuit board, 55 ... antenna element, 62 ... spring contact part, 63 ... convex contact part, 70a ... Speaker, 70b ... Speaker, 80 ... Printed circuit board, 90 ... Coaxial cable, 95a ... Connector, 95b ... Connector,

Claims (8)

A first housing in which the first circuit board is disposed;
A second housing in which the second circuit board is disposed;
Connecting one end of the first housing and one end of the second housing in a pivotable manner, and a connecting portion comprising a hinge mechanism ;
An antenna disposed in at least one of the first casing and the second casing, wherein the first casing and the second casing can be opened and closed;
A metallic attachment member attached to the inner surface of the case on the one end side of the first housing;
A conduction member for conducting the reference potential portion of the first circuit board and the adhesion member ;
The conductive member includes at least a cover portion shaped to cover the outside of the hinge mechanism, and a spring contact portion that elastically contacts the attachment member is provided on the cover portion. Mobile terminal device.   The portable terminal device according to claim 1, wherein the attachment member is disposed at a facing portion of the first housing that faces the second housing in an open state. The first housing is arranged by being overlapped with the one end side of the second housing in the housing thickness direction with the one end side in the open state,
The portable terminal device according to claim 2, wherein the facing portion is a portion facing the second housing at a portion overlapping with one end of the second housing in the opened state.   4. The mobile terminal device according to claim 2, wherein the second casing is provided with a metallic member at a portion facing the facing portion in the open state. 5. The first circuit board and the second circuit board are electrically connected by a wiring member,
The wiring member is disposed on one side of one end of the first housing with respect to the connecting portion,
The portable terminal device according to claim 1, wherein the attachment member is disposed on the other side of one end of the first housing. The antenna, the portable terminal device according to any one of claims 1 to 5, characterized in that disposed on the first body. The portable terminal device according to claim 4, wherein the metallic member is a speaker. The portable terminal device according to claim 1, wherein the adhesion member is a vapor deposition film deposited on the inner surface of the case of the first housing.

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