JP2007068201A - Communication terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication terminal capable of preventing the deterioration of an antenna gain in either case when the communication terminal is opened or closed. <P>SOLUTION: The communication terminal includes a hinge for connecting a first chassis member 101a and a second chassis member 101b which have a conductor part such as a first and a second printed circuit boards 116a, 116b, respectively, in an open-closable manner, and a second antenna 103b provided near the hinge part in the second chassis member 101b. The hinge include: a first turning shaft made of a conductive metallic member acting as a shaft when the two chassis members 101a, 101b are turned in the opposed directions to each other; and a second turning shaft made of a conductive metallic member acting as a shaft when the one of the chassis members 101a, 101b is turned in a direction orthogonal to the turning direction by the first turning shaft. Then a prescribed distance L is formed to provide a capacitive coupling between the conductor parts of the first and second chassis members 101a, 101b and the hinge is isolated from the conductor part of either of the two chassis members 101a, 101b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a communication terminal having a case that can be opened and closed, and more particularly, to a case structure of a communication terminal that includes an antenna that transmits and receives radio signals.

  As a first example of a conventional communication terminal that can be opened and closed, there is one described in Patent Document 1. Here, it demonstrates using a figure. FIGS. 20A and 20B are diagrams showing the structure of a conventional communication terminal and the operating principle of an antenna provided therein, wherein FIG. 20A shows a state in which the housing is closed and FIG. 20B shows an open state. 20 (a) and 20 (b), the communication terminal includes a first housing 202 connected to the antenna 201 that can be pulled out, and a metal or a metal-containing material that is located on the side surface of the antenna 201 when in use. The first casing 202 and the second casing 203 are connected to each other. In this communication terminal, a high-frequency current flowing through the first casing 202 provided with the antenna 201 also flows into the second casing 203, and the direction of the current at this time is indicated by arrows G, H, I. , J.

As a second example of a conventional openable / closable communication terminal, a first housing provided with an antenna on one end side is connected to the second housing on the other end side through a hinge portion so as to be openable and closable. A device in which a flexible substrate wound spirally is disposed in the hinge portion is disclosed in Patent Document 2. FIG. 21 is a diagram showing a change in the flexible substrate accompanying the opening / closing operation when the flexible substrate is provided by being spirally wound in a conventional communication terminal. FIG. (B) shows a closed state. In the flexible substrate 204 of FIG. 21A, the case where the housing is opened is indicated by a solid line, and the case where the housing is closed so as not to change the twist angle is indicated by a two-dot chain line.
Japanese Patent Laid-Open No. 2002-33804 JP-A-6-31216

  However, in the conventional communication terminal of the first example, since the first and second casings 202 and 203 are connected, the currents flowing through the casings 202 and 203 are in phase when closed. (Arrows G and H are in the same direction). That is, it flows from the end side where the antenna 201 is provided to the opposite end side. When the two casings 202 and 203 are opened, the casing current flowing through the first casing 202 (arrow I) is not different from the closed casing current (arrow G). The direction of the casing current (arrow J) flowing through the body 203 is different from the direction of the casing current (arrow H) flowing through the first casing member 202 (reverse phase). For this reason, if the closed state is opened, the radiation efficiency may be reduced. Therefore, depending on how the housing and the antenna are connected, there is a problem that the radiation efficiency may be reduced.

  In the communication terminal of the second conventional example, the antenna protrudes from the housing. With such a protruding antenna, there is a problem that the antenna is caught on the edge of the pocket when the user takes out from the state stored in the pocket. There is a demand for built-in antennas.

  Further, as shown in FIG. 21, the flexible substrate 204 wound spirally has a structure in which bending stress and torsional stress are generated in the flexible substrate 204 in accordance with the opening / closing operation of the housing. The conductor (circuit pattern) of the flexible substrate 204 may be cut. That is, in order to prevent the twist angle P of the flexible substrate wound clockwise from the lower side to the upper side, the winding is performed as shown by a two-dot chain line shown in FIG. Generation of torsional stress can be avoided. However, since both ends of the flexible substrate 204 are fixed to the two housings even when the housing is opened and closed (in the left-right direction), the housings are closed from the opened state and are closed as shown in FIG. If it changes as shown by the solid line in b), the twist angle changes to approximately P / 2. For this reason, it has a structure in which torsional stress is applied to the flexible substrate 204 along with the opening / closing operation of the housing.

  In general, a flexible substrate has a structure that is sufficiently strong against bending stress because of its flexibility. However, when various stresses are applied in combination, the flexible substrate may be broken or broken. Therefore, in the conventional communication terminal, if the opening / closing operation of the casing is repeated, there is a possibility that the flexible substrate may be disconnected or broken, and there is room for improvement in this respect.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a communication terminal capable of suppressing the deterioration of the antenna gain regardless of whether the antenna is opened or closed.

  The communication terminal according to the present invention is provided in the vicinity of the hinge part in one of the two casing members, and a hinge part that couples the two casing members having conductor parts so as to be openable and closable. An antenna, and the hinge portion includes a first rotating member made of a conductive material that serves as an axis when the two casing members are rotated in a facing direction, and the two casing members are not facing each other. A second rotating member made of a conductive material serving as a shaft when one of the housing members is rotated in a direction perpendicular to the rotating direction around the first rotating member with respect to the other when the state is in a state; And forming a predetermined interval for capacitively coupling the conductor portions of the two casing members, and insulating the hinge portion from one of the two casing members. .

  According to this configuration, in a state where the two casing members are opened, the high-frequency current of the reverse phase flowing from one casing member to the other casing member via the hinge portion can be eliminated, and two more When the casing member is closed, the high-frequency current flowing through the other casing member can be in phase with the high-frequency current flowing through the one casing member, and the antenna gain can be degraded regardless of whether the casing member is open or closed. Can be suppressed.

  In the communication terminal according to the present invention, a flexible conductor that connects the conductor portions of the two casing members is disposed on one end side of the first rotating member, and the first rotating member It is assumed that the feeding portion of the antenna is disposed on the end side.

  According to this configuration, even in the case where the flexible conductor and the antenna are arranged close to each other in the open / close communication terminal having the flexible substrate provided in the hinge portion, the flexible substrate Therefore, the influence of the flexible conductor on the antenna performance can be eliminated.

  According to the present invention, in the communication terminal, the flexible conductor disposed on one end side of the first rotating member is formed with a winding part.

  According to this configuration, breakage and disconnection of the flexible substrate due to the opening / closing operation of the housing member can be avoided, so that the lifetime of the flexible substrate can be extended. In addition, even if the flexible conductor is close to the antenna by changing the curvature of the winding portion according to the opening / closing operation of the two casing members, it is flexible on the side opposite to the antenna feeding portion where the high-frequency current is concentrated. Since the conductive conductor is disposed, deterioration of the voltage standing wave ratio (VSWR), which is one of the antenna characteristics, can be avoided, and a stable antenna gain can be obtained.

  Further, according to the present invention, in the communication terminal, a cable that connects the conductor portions inside the two casing members is provided, and the cable is inserted through the winding portion.

  According to this structure, when connecting the conductor part of two housing members with a cable, the cable length can be minimized.

  In the communication terminal according to the present invention, the antenna extends from one end side to the other end side of the first rotating member.

  According to this configuration, even if the antenna is disposed without protruding from the housing, deterioration of the antenna performance can be avoided and sufficient radiation characteristics can be obtained.

  According to the present invention, in the communication terminal, the antenna includes a first element portion having a first electric length and a second element portion having a second electric length. One end side of the element part and the second element part is connected by a reactance part having a reactance component, and the other end side of one of the two element parts is used as a power feeding part.

  According to this configuration, a single antenna has a plurality of resonance points (resonance frequencies), and a change in antenna gain in a low frequency band can be prevented regardless of whether the antenna is open or closed.

  According to the present invention, in the communication terminal, the electrical length of the first element portion is ¼ of the wavelength λ1 of the first frequency, and the electrical length of the second element portion is the electrical length of the first element portion. Suppose that the length and the sum are ¼ or 3/8 of the wavelength λ2 of the second frequency.

  According to this configuration, good antenna characteristics can be obtained at two frequencies, the first frequency and the second frequency.

  Further, the present invention provides the communication terminal and a transmitter on the exposed surface side of the two casing members that are exposed when the two casing members are opened from the closed state. It is assumed that the antenna is disposed in the vicinity of the rear hinge portion on the side opposite to the exposed surface.

  According to this configuration, when a user makes a call with a hand, the antenna can be made difficult to be covered with the hand, and the antenna can be separated from the human head. The amount can be reduced.

  As described above, according to the present invention, it is possible to provide a communication terminal capable of suppressing deterioration of antenna gain regardless of whether the antenna is opened or closed.

  Embodiments of an open / close communication terminal according to the present invention will be described below with reference to the drawings. In the present embodiment, the communication terminal will be described as an open / close type mobile phone terminal compatible with both a W-CDMA (Wideband Code Division Multiple Access) method and a GSM (Global System for Mobile Communication) method. The present invention is applicable not only to terminals but also to other communication terminals as long as it is an open / close type.

  FIG. 1 is a perspective view showing a closed state of a communication terminal according to an embodiment of the present invention. FIG. 2 is a perspective view showing a first open state of the communication terminal according to the embodiment of the present invention. FIG. 3 is a perspective view showing a second open state of the communication terminal according to the embodiment of the present invention. FIG. 4 is a perspective view showing a third open state of the communication terminal according to the embodiment of the present invention. FIG. 5 is an external view showing a state where the first open communication terminal is held in the hand. FIG. 6 is an external view showing a state where the third open communication terminal is held in the hand. FIG. 7 is a cross-sectional view of a communication terminal according to an embodiment of the present invention. FIG. 8 is a block diagram showing an electrical configuration of a communication terminal according to an embodiment of the present invention.

  As shown in FIGS. 1 to 8, the openable communication terminal according to the present embodiment includes a housing 101, a hinge unit 102, an antenna 103, a vibrator unit 104, an operation unit 105, and a receiver unit (receiver). 106, speaker 107, transmitter (microphone) 108, camera 109, first hall element 110, second hall element 111, first display section 112, second display section 113, and second display section 113. The first permanent magnet 114, the second permanent magnet 115, and the printed board 116 are included. The printed circuit board 116 includes a transmission / reception unit 117, a data conversion unit 118, an audio processing unit 119, an image processing unit 120, an information recording unit 121, and a control unit 122 shown in FIG.

Hereinafter, each component which the communication terminal of this embodiment has is demonstrated.
First, the housing 101 will be described. The housing 101 includes a first housing member 101a and a second housing member 101b. FIG. 9 is an exploded perspective view of the housing 101 included in the communication terminal according to the present embodiment. As shown in the figure, hinge mounting portions 101c and 101d for holding the hinge portion 102 are formed in the second casing member 101b. A D-shaped hole 101e for holding the hinge portion 102 is formed in the hinge mounting portion 101c, and a bearing portion 101f for supporting the hinge portion 102 is formed in the hinge mounting portion 101d.

  Therefore, the housing 101 can be opened and closed with the first housing member 101a and the second housing member 101b about the hinge portion 102 as an axis. In the following description, the state in which the first casing member 101a is closed with respect to the second casing member 101b is referred to as a “closed state”, and the first casing with respect to the second casing member 101b. The state in which the body member 101a is open is referred to as “open state”. Normally, the communication terminal is used in a closed state when it is carried, and in an open state when used. As shown in FIG. 2, a state in which the angle between the first housing member 101a and the second housing member 101b is approximately 180 degrees is referred to as a “first open state”. As shown in FIG. 3, a state in which the angle between the first housing member 101a and the second housing member 101b is approximately 90 degrees is referred to as a “second open state”.

  Further, as shown in FIGS. 4 and 6, the first and second casing members 101 a and 101 b are connected so as to be rotatable in a direction orthogonal to the opening and closing direction in the second open state. . A configuration that can be rotated in the orthogonal direction will be described later. Note that the state shown in FIG. 4 in which the first casing member 101a is rotated 90 degrees in the direction of arrow S, that is, the direction orthogonal to the opening and closing direction, from the second opened state of FIG. 3 is referred to as “third opened state”. That's it. It can be rotated up to 150 degrees in the S direction. In the third open state, the first display unit 112 is in the landscape orientation, which is suitable for displaying a VGA size image. For this reason, it is possible to display a larger image than when a display unit having the same size is set in the portrait direction.

  In the present embodiment, the protrusion 123a is formed on the surface of the second casing member 101b that contacts the first casing member 101a in the closed state. For this reason, in the closed state, a clearance 123b is formed by the protrusion 123a between the first housing member 101a and the second housing member 101b.

  Next, other components will be described. The antenna 103 includes a first antenna 103a and a second antenna 103b. The first antenna 103a built in the first housing member 101a is an antenna that performs transmission / reception in the W-CDMA system only in the open state. In the closed state, transmission / reception using the first antenna 103a is stopped. The second antenna 103b first performs W-CDMA transmission / reception in the closed state, and secondly transmits / receives in the GSM band in either the open state or the closed state. ing. That is, the second antenna has resonance points in the 900 MHz band, the 1.8 GHz band, and the 1.9 GHz band that are GSM band, and the 2 GHz band that is the W-CDMA band, and transmits and receives these four bands. It is a multi-frequency antenna that can

  As shown in FIG. 8, the transmission / reception unit 117 is connected to the first and second antennas 103a and 103b, processes the data received by the first and second antennas 103a and 103b, and transmits the processed data to the data conversion unit 118. To do. The data converter 118 converts the received data into audio data and transmits it to the audio processor 119. The audio processing unit 119 generates audio signals by decoding audio data, and then transmits the audio signals to the receiver 106 and the speaker 107. The receiver 106 and the speaker 107 output sound corresponding to the sound signal transmitted from the sound processing unit 119.

  In addition, the voice processing unit 119 encodes the voice received by the microphone 108 to generate voice data, and transmits the voice data to the data conversion unit 118. The data conversion unit 118 converts the transmitted audio data into communication data, and then transmits the communication data to the transmission / reception unit 117. The transmission / reception unit 117 processes the received communication data and transmits it as a radio wave from the antenna 103.

  As shown in FIG. 8, the camera unit 109, the first display unit 112, and the second display unit 113 are connected to the image processing unit 120. The receiver 106, the speaker 107, and the microphone 108 are connected to the audio processing unit 119, and the audio processing unit 119 is connected to the data conversion unit 118. The control unit 122 is connected to the vibrator unit 104, the operation unit 105, the first Hall element 110, the second Hall element 111, the transmission / reception unit 117, the data conversion unit 118, and the information recording unit 121, and controls these components. I do. The control unit 122 is connected to the battery 124 and is supplied with power from the battery 124.

  The vibrator unit 104 notifies the incoming call by vibration by oscillating the incoming call. The operation unit 105 includes a first operation unit 105a and a second operation unit 105b. The first operation unit 105a is provided on the opposing side surface 101g (the main surface of the second casing member) of the second casing member 101b that faces the first casing member 101a in the closed state. The operation unit 105b is provided on the right side surface 101h (the right side surface of the second casing member) of the opposing side surface 101g. The user can operate the first operation unit 105a to perform an operation of receiving and ending, adjusting a volume output from the receiver 106 and the speaker 107, and inputting characters, symbols, and numbers. In addition, the user can operate the camera unit 109 by operating the second operation unit 105b.

  The first and second display units 112 and 113 can be configured by a liquid crystal display or the like, and display characters, symbols, numbers, images, maps, and the like. The first display unit 112 is provided on the side surface 101i (the main surface of the first housing member) of the first housing member 101a that is exposed when the housing 101 is in the open state, and the housing 101 is closed. If it is, it faces the first operation unit 105a. The second display unit 113 is provided on the side surface (the back surface of the first housing member) 101j opposite to the side surface on which the first display unit 112 is provided. Note that the receiver 106, the speaker 107, and the microphone 108 are exposed surfaces that are exposed when the housing 101 is opened from the closed state, that is, the main surfaces 101i and 101g of the first and second housing members 101a and 101b. Provided. The second antenna 103b is provided in the vicinity of the back side opposite to the exposed surface.

  The camera unit 109 includes a first camera unit 109a and a second camera unit 109b. The first camera unit 109a is provided adjacent to the first display unit 112 at a position where the subject in the front direction of the first display unit 112 can be imaged. The second camera unit 109b is provided in the hinge mounting unit 101c, and is provided at a position where the subject in the forward direction of the second display unit 113 can be imaged in the third open state.

  Incident light from the subject captured by the first camera unit 109a is converted from an optical signal to an electrical signal, and image information is generated. The image information is processed by the image processing unit 120 and then displayed on the first display unit 112. On the other hand, incident light from a subject captured by the second camera unit 109b is converted from an optical signal to an electrical signal, and image information is generated. The image information is processed by the image processing unit 120 and then displayed on the first and second display units 112 and 113. Note that these pieces of image information are recorded in the information recording unit 121 when a predetermined operation is performed. In addition, the information recording unit 121 may record telephone number information, voice information, image information other than the image information of the captured image (received image information, etc.), and character information such as mail being created or transmitted / received. it can.

  The speaker 107 notifies the user of an incoming call by outputting a ring tone when receiving an incoming call. Since the speaker 107 is provided on the end side of the second casing member 101b at a position away from the hinge mounting portions 101c and 101d, the first casing member that faces when the casing 101 is closed. Audio is output toward the 101a side. Note that the speaker 107 can output sound having a louder volume than that of the receiver 106 when hands-free or during a videophone call.

  The receiver 106 outputs sound when the communication terminal of this embodiment is used as a normal mobile phone. The sound output from the receiver 106 is output toward the front of the first display unit 112 and is provided on the end side of the first housing member 101a facing the speaker 107 when the housing 101 is in the closed state. ing. The user opens the housing 101 in the first open state at the time of receiving a call, and listens to the voice by touching the receiver 106 after a predetermined operation. The microphone 108 is provided in the vicinity of the hinge mounting portion 101d on the main surface 101g of the second casing member 101b.

  The first permanent magnet 114 is provided in the vicinity of the first display portion 112 of the first casing member 101a. The first hall element 110 is provided on the second casing member 101b so that the casing 101 faces the first permanent magnet 114 in the closed state. The second permanent magnet 115 is provided in the hinge portion 102. The second hall element 111 is provided on the first housing member 101a so that the housing 101 faces the second permanent magnet 115 in the closed state and the first open state.

  When the housing 101 is in the closed state, the first permanent magnet 114 is close to the first Hall element 110, so the first Hall element 110 detects the first permanent magnet 114 and gives a detection signal to the control unit 122. If the housing 101 is not closed (first, second, and third open states), the first permanent magnet 114 is separated from the first Hall element 110, so that the first Hall element 110 is the first Hall element 110. Since the permanent magnet 114 cannot be detected, the first Hall element 110 does not generate a detection signal.

  Further, in the closed state, the first open state, and the second open state, the second permanent magnet 115 is close to the second hall element 111 in the closed state, the first open state, and the second open state. It detects and sends a detection signal to the control unit 122. In addition, when the housing 101 is in the third open state, the second permanent magnet 115 is separated from the second Hall element 111, and the second Hall element 111 cannot detect the second permanent magnet 115, and therefore does not generate a detection signal. That is, the control unit 122 opens / closes and rotates the first casing member 101a and the second casing member 101b depending on whether or not the detection signals are received from the first and second Hall elements 110 and 111. Can be recognized.

  The printed circuit board 116 includes a first printed circuit board 116a and a second printed circuit board 116b. The first printed circuit board 116a is accommodated in the first housing member 101a, and the second housing member 101b includes the second printed circuit board 116b. Two printed circuit boards 116b are accommodated.

  Next, the hinge part 102 will be described in detail with reference to FIGS. FIG. 9 is an exploded perspective view of the housing 101 of the open / close communication terminal according to the present embodiment. FIG. 10 is an exploded perspective view of the hinge portion shown in FIG. FIG. 11 is a cross-sectional view of the hinge portion 102 when the housing 101 is in the first open state. FIG. 12 is an explanatory diagram (cam diagram) for explaining the operation of the cam attached to the hinge portion 102.

  As shown in FIGS. 9-11, the hinge part 102 with which the communication terminal of this embodiment was provided is the 1st rotation axis | shaft 125, the 2nd rotation axis | shaft 126, the support plate 127, the guide axis | shaft 128, the 1st coil spring. 129, first click convex plate 130, first click concave plate 131, cam 132, second click convex plate 133, second coil spring 134, bracket 135, E-ring 136, and first rotating shaft bearing 137 138, a flexible substrate 139, a cable 140, a front cover 141, a rear cover 142, and fastening screws 143a and 143b. In the hinge unit 138, only the first rotation shaft bearing 137 is formed of a resin material, and components other than the first rotation shaft bearing 137 are formed of a conductive metal material. In addition, you may interpose the sliding resistance reduction member formed with the polyacetal resin etc. suitably in the sliding site | part.

  The hollow first rotating shaft 125 has a notch portion 125a at the center, a support portion 125b for supporting the second rotating shaft 126, a partition portion 125c, a slit 125d, a screw hole 125e, and a second permanent magnet holding portion 125f. Have A support plate 127 is installed in the notch 125a. The support plate 127 is formed with a recess 127 a and a support hole 127 b for supporting the second rotating shaft 126. A guide shaft 128, a first coil spring 129, a first click convex plate 130, and a first click concave plate 131 are mounted inside the first rotation shaft 125 from the left side in FIG.

  The guide shaft 128 has a large diameter portion 128a and a small diameter portion 128b. A parallel groove 128c is formed in the large-diameter portion 128a, and a D-cut portion 128d is formed at the tip of the small-diameter portion 128b. The first click convex plate 130 is not rotatable about the guide shaft 128 and is provided so as to be movable only in the thrust direction of the small diameter portion 128b. Further, the first click concave plate 131 is fixed to the end portion side of the first rotation shaft 125 while the small diameter portion 128b is rotatably inserted.

  The first coil spring 129 biases the first click convex plate 130 toward the first click concave plate 131. When the housing 101 is in the closed state and the first open state, the convex portion 130 a of the first click convex plate 130 is engaged with the concave portion 131 a of the first click concave plate 131. When the housing 101 is changed from the first open state to the closed state, the engagement between the convex portion 130a and the concave portion 131a is released. On the other hand, when the casing 101 is changed from the closed state to the first open state, the convex portion 130a and the concave portion 131a. And engage. That is, as a result, the user can feel a click when engaging or disengaging the convex portion 130a and the concave portion 131a.

  A cam 132, a support plate 127, a second click convex plate 133, a second coil spring 134, and a bracket 135 are mounted on the second rotation shaft 126 from the upper side in the middle of FIG. The second rotation shaft 126 is supported by a support plate 127 attached to the notch 125 a of the first rotation shaft 125 and a support portion 125 b of the first rotation shaft 125. An E-ring 136 is provided at the tip of the second rotation shaft 126 and is rotatably held by the first rotation shaft 125. The second click convex plate 133 is provided to be movable only in the thrust direction of the second rotation shaft 126. Further, the second coil spring 134 biases the second click convex plate 133 toward the support plate 127.

  The convex portion 133a of the second click convex plate 133 is supported by the support plate 127 only when the casing 101 is changed from the closed state to the first open state via the second open state, or only in the third open state. Engaging with the recess 127a. When shifting from the second open state to the third open state, the engagement between the convex portion 133a of the second click convex plate 133 and the concave portion 127a of the support plate 127 is released, and in the third open state, Engage again. That is, it is configured to give the user a click feeling by the same configuration as the convex portion 130a of the first click convex plate 130 and the concave portion 131a of the first click concave plate 131 described above.

  The bracket 135 has a hole 135a that is fastened to the first casing member 101a together with the first printed board 116a by a fastening screw 143a. In the present embodiment, the bracket 135 and the first printed board 116a are insulated. With this structure, the hinge unit 138 is insulated from the printed circuit boards 116a and 116b on the first and second casing members 101a and 101b side, and the first casing member 101a and the second casing member 101b Has an insulated configuration. On the other hand, when the hinge unit 138 is grounded to the first printed circuit board 116a via the bracket 135, a ground pattern may be formed on the first printed circuit board 116a in contact with the bracket 135. Further, when it is desired to electrically connect the hinge unit 138 to the first housing member 101a side even when the first printed circuit board 116a is not provided, for example, the exterior portion of the first housing member 101a is made of an aluminum alloy or a magnesium alloy. It may be formed by a die casting method from a metal material having conductivity such as, and connected to the exterior portion.

  The distance L between the first printed circuit board 116a which is the conductor part on the first housing member 101a side and the second printed circuit board 116b which is the conductor part on the second housing member 101b side is a wavelength λ = 150 mm in the 2 GHz band. Is set to about λ / 10 (15 mm). As a result, the first printed circuit board 116a and the second printed circuit board 116b are capacitively coupled with high impedance. In addition, in order to capacitively couple both, it is more preferable that the above-mentioned distance L is narrow.

  The cam 132 is fixed to the second rotation shaft 126 and is sandwiched between the partition portion 125c of the first rotation shaft 125 and the large diameter portion 128a of the guide shaft 128 so that the first rotation shaft 125 Is housed inside. The cam 132 and the parallel groove 128c of the guide shaft 128 are configured so as to intersect when the casing 101 is in the first open state from the closed state except in the second open state, and parallel in the second open state. ing. In the second open state, the cam 132 that rotates along with the rotation of the second rotation shaft 125 can be guided into the parallel groove 128c, so that the first housing member 101a is rotated in the S direction. Can do. Here, the above movement will be described with reference to a cam diagram shown in FIG.

  In the cam diagram of FIG. 12, the hatched portion on the right side indicates the partition portion 125c. Further, the left hatched portion indicates the large diameter portion 128a of the guide shaft 128, and the arc portion indicates the parallel groove 128c. Here, the position of the cam 132 when the housing 101 is in the closed state is indicated by a position a. Further, the position of the cam 132 when the housing 101 is in the first open state is indicated by a position b. Further, the position of the cam 132 when the housing 101 is in the second open state is indicated by a position c.

  At the positions a and b, the left and right end surfaces of the cam 132 are respectively surrounded by the partition portion 125c and the large diameter portion 128a of the guide shaft 128, so that the cam 132 cannot rotate. At the position c, the partition portion 125c is provided on the right end surface side of the cam 132, so that it cannot be rotated to the opposite side to the S direction. Since there is a parallel groove 128c on the left end face side of the cam 132, it can be rotated 150 degrees in the S direction. In a state where the cam 132 is rotated 150 degrees in the S direction, a part of the cam 132 is in the parallel groove 128c. In this state, the plate thickness direction of the cam 132 is surrounded by the parallel groove 128c. Or it is suppressed even if it tries to change to the 1st open state.

  Therefore, when the housing 101 is opened and closed between the closed state and the first open state, the first housing member 101a rotates in the S direction or the direction opposite to the S direction except in the second open state. Can not. Further, in the second open state, it cannot rotate in the direction opposite to the S direction, but can rotate 150 degrees in the S direction. Further, during the period from the second open state to the third open state, the first rotation shaft 125 cannot rotate and the housing cannot be opened and closed, so that the ridge portion of the first housing member 101a is in the second state. It contacts the main surface 101g of the casing member 101b so as not to be damaged.

  Inside the first rotation shaft 125, a hollow first rotation shaft bearing 137 is mounted from the right side of the step portion in FIG. The groove 137a of the first rotation shaft bearing 137 is attached in the same direction as the slit 125d.

  A flexible substrate 139 and a cable 140 are assembled to the hinge unit 138. A flexible substrate 139 having a corner portion 139a electrically connects the first housing member 101a and the second housing member 101b. One end side of the corner portion 139a is wound around the first rotation shaft bearing 137 to form a first winding portion 139b, and the corner portion 139a is passed through the groove 137a into the first rotation shaft bearing 137. The The other end side of the corner portion 139a passes through the slit 125d and escapes from the first rotation shaft 125, is wound about a half turn around the first rotation shaft 125, and further around the second rotation shaft 126. It is wound to form a second winding part 139c and connected to the first casing member 101a.

  The cable 140 that electrically connects the first antenna 103 a provided in the first housing member 101 a and the transmission / reception unit 117 provided in the second housing member 101 b is connected to the end of the first rotation shaft bearing 137. Is passed through the first rotary shaft bearing 137 from the slit, extends from the slit 125d to the first casing member 101a side, passes through the inside of the second winding portion 139c, and passes through the first antenna 103a. Connected.

  After the flexible board 139 and the cable 140 are assembled to the hinge unit 138, the exterior front cover 141 and the rear cover 142 are fixed by the fastening screws 143b. The front cover 141 and the rear cover 142 are provided with engaging claws 141a and 142a and screw insertion holes 141b and 142b, respectively. The screw insertion holes 141 b and 142 b are provided so as to face the bracket 134 provided on the second rotating shaft 126. Further, the front cover 141 and the rear cover 142 are sandwiched so as to surround the hinge unit 138 to engage the engaging claws 141a and 142a, and the fastening screw 143b passes through the screw insertion holes 141b and 142b, so The hinge part 102 is completed by this structure.

  A D-cut portion 128d formed at the tip of the small-diameter portion 128b is supported by a D-shaped hole 101e provided in the hinge mounting portion 101c of the second casing member 101b. The outer periphery is supported by the bearing portion 101f of the hinge mounting portion 101d of the second casing member 101b, and the hinge portion 102 is mounted on the second casing member 101b. The first casing member 101a is attached to the bracket 135.

  Next, the configuration of the second antenna will be described in detail with reference to the drawings. FIG. 13 is a perspective view showing a configuration in the vicinity of the second antenna 103b provided in the communication terminal of the present embodiment. In FIG. 13, the side surfaces near the hinge mounting portions 101c and 101d that are adjacent to the main surface 101g of the second housing member 101b and that are close to and face the first housing member 101a when the housing 101 is in the first open state. The second antenna 103b is adhesively fixed to the inner surface 101k. The second antenna 103b includes a first element portion 103c, a second element portion 103d, and a reactance portion 103e disposed between the first and second element portions 103c and 103d. It is formed by press working.

  The electrical length of the first element portion 103c is formed to be ¼ of the wavelength λ1 having a frequency of about 1.9 GHz. Further, the electrical length of the second element portion 103d is ¼ of the wavelength λ2 having the frequency of 900 MHz when the one end side of the first and second element portions 103c, 103d is connected by the reactance portion 103e. (It may be 3/8). The reactance portion 103e is formed such that the step between the equally-spaced concave portion 103f and convex portion 103g is substantially d. The power feeding portion 103h provided on the other end side of the first element portion 103c is urged by the probe-type pin connector 116c mounted on the surface at the left corner of the second printed circuit board 116b as shown in FIG. It is electrically connected to the printed board 116b. The power feeding unit 103h is disposed at a position away from the flexible substrate 139 housed inside the hinge mounting unit 101d. Thus, by connecting the first and second element portions 103c and 103d by the reactance portion 103e, a multi-frequency antenna having a plurality of resonance points can be realized. FIG. 14 shows the VSWR characteristics of the second antenna 103b. This characteristic diagram shows actual measurement data of VSWR in a frequency range of 0.5 to 2.5 GHz.

  In the communication terminal according to the present embodiment configured as described above, the user can use the receiver 106 with his / her ears on the receiver 106 in the first open state, or can be used in a hands-free manner with the hand. . Further, when reading mail or inputting characters, as shown in FIG. 5, the first operation unit 105a and the first display unit 112 are held in hand so that they face the user side. At this time, since the speaker 107 is not covered even if it is held with either left or right hand, the user can clearly hear the sound output from the speaker 107.

  Further, as shown in FIG. 6, the second operation unit 105b and the first display unit 112a are held facing the user side in the third open state. In this case, since it is easy to see if the first display unit 112 is in front of the user, the second housing member 101b is used with the right hand. At this time, since the speaker 107 is not covered with the right hand, the sound output from the speaker 107 can be heard clearly.

  Next, with reference to FIGS. 1-15, operation | movement of the communication terminal of this embodiment is demonstrated. FIG. 15 is an explanatory diagram for explaining functions of each mode of the communication terminal according to the present embodiment. As shown in the figure, in a state where the communication terminal of the present embodiment is powered on, the voice communication mode is started, mode switching is performed by operating the operation unit 105, and the non-voice communication mode or camera mode is executed. It is configured so that each function can be operated.

  In the voice communication mode, reception standby operation for voice and non-voice communication is started. It is possible to have a conversation with the other party by performing an incoming or outgoing voice operation. In the reception standby state, the time and the like are displayed on the second display unit 113 when the casing 101 is closed, and the first display unit 112 when the case 101 is open. The other party's outgoing number is displayed. If the other party's calling number is registered in the phone book in advance together with the name, the other party's name is displayed. Thereafter, by operating the operation unit 105, a call can be started.

  In the non-voice communication mode, the character information input from the operation unit 105 is displayed on the first display unit 112 while maintaining the reception standby state, and is stored in the character information or information recording unit 121 using the transmission function. Sent voice and non-voice (image etc.) information can be transmitted.

  When the character information or voice / non-voice information is received, the information is displayed on the first display unit 112 when the casing 101 is open, and on the second display unit 113 when the casing 101 is closed. A message notifying the reception of is displayed. In addition, character information and image information can be displayed on the first and second display units 112 and 113 by a predetermined operation by the user. Note that when performing voice or non-voice communication, a telephone directory function can be used to determine a transmission partner. In other words, the name of the other party can be displayed on the first display unit 112 using this telephone directory function, and can be selected and confirmed.

  In the camera mode, shooting by the camera unit 109 can be performed in the open state. For example, when the user on the first display unit 112 side is photographed by the first camera unit 109a in the third open state, a mirror image is displayed on the first display unit 112. It becomes the same state as the state. In addition, when the user operates the second camera unit 109b to photograph a person (subject) ahead, a mirror image is displayed on the second display unit 113 and an anti-mirror image is displayed on the first display unit 112. As a result, the person in front of the subject can check how the subject is photographed by looking at the second display unit 113. In addition, the user who takes a picture can check how the picture is taken by looking at the captured image displayed on the first display unit 112.

  When shooting is started or ended or when the zoom function is used, a necessary operation can be performed using the second operation unit 105b. If it is not desired for the person in front to view the captured image being photographed, the operation unit 105 is operated to hide the captured image displayed on the second display unit 113 in the third open state. Can be set.

  Further, the captured image can be recorded in the information recording unit 121 as a still image or a moving image. When playing back a moving image or a still image recorded in the information recording unit 121, a predetermined operation can be performed to display the captured image on the first display unit 112 for visual observation. This captured image can be stored in the telephone directory in association with the telephone number information. When an incoming call is received from the telephone number associated with the image information, a reverse mirror image of the captured image is displayed on the second display unit 113 when the casing 101 is closed, and the first or second display is displayed when the case 101 is open. Inverted mirror images of the captured images are displayed on the sections 112 and 113. That is, even if a mirror image is displayed at the time of shooting, a reverse mirror image is displayed when a recorded image is read out. In addition, a captured image captured by the camera unit 109 can be transmitted to a communication partner.

  In any mode, when an incoming call arrives, a ring tone is output from the speaker 107 to notify the incoming call. At this time, even if the housing 101 is in the closed state, the ring tone output from the speaker 107 is outside the housing 101 via the clearance 123b between the first housing member 101a and the second housing member 101b. As a result, the user can hear the ringtone clearly. In addition, when the housing 101 is in the open state, the front of the speaker 107 is open, so that it is not difficult for the user to hear the ringtone. Further, when the manner mode is set, the ring tone is not output and only the vibrator unit 104 is operated, and the casing 101 is vibrated for a predetermined time.

Next, the rotation operation of the housing 101 will be described.
When the closed casing 101 is opened, the hinge unit 138 rotates about the axis of the first rotation shaft 125. At this time, the number of turns of the first winding part 139b of the flexible substrate 139 is reduced by the amount of rotation of the first rotation shaft bearing 137 that rotates together with the first rotation shaft 125. The bending stress generated in the substrate 139 is also reduced. Since the cable 140 is disposed substantially coincident with the axis of the first rotation shaft 125, the bending stress is not increased or decreased, and only the torsional stress is generated. Further, when the housing 101 returns from the first open state to the closed state, the operation for opening from the closed state is reversed.

  In addition, when the first casing member 101a is rotated 90 degrees in the S direction to change from the second open state to the third open state, the number of turns of the second winding portion 139c of the flexible substrate 139 Increases or decreases the number of windings by the amount of rotation of the second rotation shaft 126. Since the flexible substrate 139 only increases or decreases the number of windings, only the bending stress increases and decreases, and no torsional stress is generated. The cable 140 is wound around the second rotation shaft 126 by the amount that the second rotation shaft 126 is rotated. However, since the second rotation shaft 126 is smaller in diameter than the first rotation shaft 125, the cable 140 is wound. The curvature radius is small, and generation of a large bending stress can be avoided.

  That is, the flexible substrate 139 forms the first and second winding portions 139b and 139c around the axial centers of the first and second rotating shafts 125 and 126. Even if the rotation shafts 125 and 126 rotate, only the curvatures and the number of windings of the first and second winding portions 139b and 139c change. For this reason, during the rotation, the tension and deflection generated in the flexible substrate 139 are absorbed by the first and second winding portions 139b and 139c, so that only the bending stress is changed, and the generation of torsional stress is avoided. Is done.

  When the housing 101 is in the closed state, the first open state, and the second open state, the head of the fastening screw 143b faces the first housing member 101a. Therefore, the fastening screw 143b is used as the first housing. It is hidden by the member 101a. Only when the housing 101 is rotated from the second open state to the third open state, the head of the fastening screw 143b is exposed. However, since the head of the fastening screw 143b is exposed only in the third open state, the opportunity for the head of the fastening screw 143b to be exposed can be reduced.

  Furthermore, in the third open state, the user does not close the speaker 107 with his / her hand when viewing the captured video or using the communication terminal of the present embodiment as a TV phone. Can be heard clearly from Further, since the microphone 108 is not blocked by a hand during a videophone call, similarly, the voice of the communication partner output from the speaker 107 can be heard clearly and the user's voice can be reliably input to the microphone 108. be able to.

  In the present embodiment, when the casing 101 is in the closed state, the protrusion 123a for forming the clearance 123b between the first casing member 101a and the second casing member 101b is provided in the second casing. Although formed on the surface of the body member 101b, a projection similar to this may be provided on other parts such as the first housing member 101a. Further, other means such as a cover member for hiding the fastening screw 143a for fastening the first housing member 101a protruding from the surface of the first housing member 101a may be used. That is, in order to be able to guide the sound output from the speaker 107 to the outside of the housing 101 even when the housing 101 is in the closed state, the housing facing the housing member in which the speaker 107 is disposed. A clearance 123b may be formed between the body member and the body member.

  Next, the operation of the second antenna 103b will be described. FIG. 16 is an explanatory diagram showing the operation principle of the second antenna 103b used in the communication terminal of the present embodiment, where (a) is a closed state of the housing, (b) is a first open state, and (c). These are figures each showing a third open state. FIG. 17 is a characteristic diagram showing the directivity characteristics of the second antenna 103b of FIG. 16, where (a) shows the xyz axis with respect to the housing, and (b) shows the state in which the housing is opened (first and first). 3 (open state 3), (c) is a view showing a state in which the housing is closed.

  In FIG. 16, the first housing member 101a is connected to the second housing member 101b having the second antenna 103b by capacitive coupling (floating capacitance), and is insulated in terms of direct current. The first casing member 101a acts as a reflector when the two casing members 101a and 101b are in the closed state, and acts as a waveguide when in the first opened state. In the closed state shown in FIG. 16 (a), the directions of the high-frequency currents (casing currents) flowing through the first and second casing members 101a and 101b are as indicated by arrows A and B, respectively. The second casing member 101b side becomes larger.

  In the first open state shown in FIG. 16B, the magnitude of the high-frequency current flowing through the first casing member 101a is substantially the same as the high-frequency current flowing through the second casing member 101b. The direction of the current is out of phase. In this case, as indicated by an arrow C, the direction in which the high-frequency current flows is reversed with respect to the arrow B. The direction of the high-frequency current flowing on the second housing member 101a side indicated by the arrow D is the same as that of the arrow A. Therefore, in the first open state, electromagnetic waves are also emitted from the first housing member 101a side.

  In the third open state shown in FIG. 16C, the high-frequency current (arrow E) that flows through the second casing member 101b is the high-frequency current (arrow A) that flows through the second casing member 101b in the closed state. Will be the same. As for the first casing member 101a, since the first casing member 101a intersects the second casing member 101b, the first casing member 101a does not act as a director and is closed. It becomes the same as the state. Therefore, the direction of the high-frequency current (arrow F) flowing through the first casing member 101a is substantially orthogonal to the high-frequency current (arrow E) flowing through the second casing member 101b. That is, the casing current (arrow F) on the first casing member 101a side does not cancel the casing current (arrow E) on the second casing member 101b side. Therefore, the gain of the second antenna 103b is not reduced, and the electromagnetic wave is radiated from the first housing member 101a side in addition to the second housing member 101b side.

  The second antenna 103b is provided along the first rotation shaft 125 of the hinge unit 138. However, the present invention is not limited to this. For example, the end of the second antenna (on the side opposite to the power feeding unit) is connected to the hinge unit 102. It may be configured to extend in a direction away from the hinge part 102, that is, a direction from the hinge part 102 toward the battery side (terminal side of the second casing member 101b). Even when the protruding antenna is provided in the vicinity of the hinge portion, if the first casing member and the second casing member are loosely coupled, the first casing member functions as the radiator described above. And since it has a director-like action, a decrease in antenna gain due to being held by the user's hand can be reduced. That is, since electromagnetic waves can be radiated also from the first housing member side, the antenna may have a plate shape or a rod shape.

  Here, the VSWR characteristic and impedance characteristic of the second antenna 103b when the first and second casing members are in a tightly coupled state will be described with reference to FIG. 18, (a) and (b) are VSWR characteristics and impedance characteristics in the closed state of the casing in the tightly coupled state, and (c) and (d) are the first open state of the casing in the tightly coupled state. The simulation results of the VSWR characteristic and the impedance characteristic in FIG. When the VSWR characteristics (a) and (c) of the two states in this tightly coupled state are compared, if the casing 101 is changed from the closed state to the first open state, the VSWR hardly changes in the vicinity of the 2 GHz band. It can be seen that the deterioration occurs on the low frequency side (around 0.9 GHz). This is because the higher the frequency, the larger the current flowing through the antenna and the smaller the casing current, and the lower the frequency, the smaller the current flowing through the antenna and the larger the casing current, and the first casing member 101a. The influence of the negative phase current flowing through the slag greatly contributes to the low frequency side. From this result, it is understood that the first housing member 101a and the second housing member 101b are preferably loosely coupled, particularly when a multi-frequency antenna is used.

  That is, when the first housing member 101a side and the second housing member 101b side are electrically tightly coupled, the radiation characteristic in the resonance frequency band on the low frequency side is deteriorated. Therefore, when a multi-frequency antenna is used, better antenna gain can be obtained if the two casing members 101a and 101b are loosely coupled.

  In addition, as shown in FIG. 5, in the first open state, the user holds the second casing member 101b in his hand, makes a call with the receiver 106 of the first casing member 101a on his ear, The first casing member 101a is used away from the head during a videophone call. When photographing the front of the user, the user holds the second casing member 101b in the second opened state. Therefore, in the first open state, the first casing member 101a that emits electromagnetic waves is not covered by the hand that is gripped, so that reduction of the antenna gain can be avoided and good transmission and reception can be performed. The third open state is the same as the closed state, but the side surface side of the second housing member 101b where the second antenna 103b is provided and the first housing member 101a are not covered by the hand. Gain reduction due to being held by hand can be reduced.

  In addition, when the power feeding portion 103h having the maximum current value and the first winding portion 139b of the flexible substrate 139 are brought close to each other, when the housing 101 changes from the closed state to the open state, the first winding portion 139b The curvature changes and the distance between the two becomes narrow, which causes capacitive coupling between the flexible substrate 139 and the power feeding portion 103h of the second antenna 103b. For this reason, the frequency characteristic on the low frequency side becomes a narrow band radiation characteristic. Further, when the power feeding unit 103h and the flexible substrate 139 are close to each other, a current flows from the immediate vicinity of the power feeding unit 103h to the first housing member 101a side. Therefore, the housing current on the first housing member 101a side is increased. Becomes opposite to the casing current on the second casing member 101b side. On the other hand, in the present embodiment, the flexible substrate 139 and the power feeding unit 103h are separated from each other, and the end (the end of the second element unit 103d) at which the antenna current becomes substantially zero and the first winding unit 139b. And are close to each other. For this reason, since the first winding part 139b and the second antenna 101b are not capacitively coupled even when the casing 101 is opened and closed, the band is prevented from being narrowed, and the casing on the first casing member 101a side is further prevented. It is possible to prevent the body current from being out of phase. That is, it is possible to control the casing current so that the casing current on the first casing member 101a side is in phase with the second casing member 101b side. Therefore, it is possible to avoid a decrease in the gain of the second antenna 103 regardless of the open / close state of the housing 101.

  The degree of deformation of the flexible substrate 139 associated with the opening / closing operation of the housing 101 will be described with reference to FIG. In FIG. 19, (a) shows the closed state of the housing, (b) shows the third open state, and (c) shows the first open state. In the closed state shown in FIG. 19A, the flexible substrate 139 is disposed substantially linearly downward from the first winding portion 139b. In this state, in the third (or second) open state in which the casing 101 shown in FIG. 19B is opened 90 degrees, the number of turns of the first winding part 139b decreases by 3/4 rounds. As the curvature of the winding portion 139b increases, the flexible substrate 139 approaches the second antenna 103b. In the first open state shown in FIG. 19 (c), the rate of change in curvature of the first winding portion 139b is further increased, and the flexible substrate 139 comes closer to the second antenna 103b. Therefore, when the housing 101 is changed from the closed state to the first open state, the curvature of the first winding portion 139b changes and the winding mode swells, and the flexible substrate 139 and the second antenna 103b The interval is narrowed and the gain of the second antenna 103b is reduced. For this reason, it is preferable to obtain a structure in which the power feeding unit 103h and the first winding unit 139b are separated as in the present embodiment described above in order to obtain better antenna performance.

  As described above, according to the present embodiment, even in the case where the flexible conductor and the antenna are arranged close to each other in the open / close communication terminal having the flexible substrate passed through the hinge portion, the flexibility Since the structure is such that the substrate and the feeding portion of the antenna are separated from each other, a decrease in antenna gain due to the flexible conductor can be avoided. Thereby, it is possible to suppress the deterioration of the antenna gain regardless of whether the antenna is opened or closed. Further, in an open / close communication terminal having a flexible substrate, it is possible to provide a communication terminal capable of extending the life of the flexible substrate and further incorporating an antenna.

  As described above, according to the communication terminal of the present invention, there is an effect that it is possible to suppress the deterioration of the antenna gain regardless of whether it is opened or closed, and the communication terminal including an antenna that transmits and receives a radio signal This is useful in the field of housing structures.

The perspective view which shows the closed state of the open / close type communication terminal which concerns on one Embodiment of this invention The perspective view which shows the 1st open state of the open / close type communication terminal which concerns on one Embodiment of this invention. The perspective view which shows the 2nd open state of the switchable communication terminal which concerns on one Embodiment of this invention. The perspective view which shows the 3rd open state of the switchable communication terminal which concerns on one Embodiment of this invention. External view showing a state where the first open communication terminal is held in the hand External view showing a state where the third open communication terminal is held in the hand Sectional drawing of the open-close-type communication terminal which concerns on one Embodiment of this invention The block diagram which shows the electrical constitution of the communication terminal which concerns on one Embodiment of this invention. The disassembled perspective view of the housing | casing of the switchable communication terminal which concerns on this embodiment The disassembled perspective view of the hinge part in the opening-and-closing type communication terminal concerning this embodiment Sectional drawing of the hinge part in the 1st open state Explanatory drawing explaining operation | movement of the cam with which a hinge part is mounted | worn (cam diagram) The perspective view which shows the structure of the 2nd antenna provided in the communication terminal which concerns on this embodiment. The characteristic view which shows the VSWR characteristic of the 2nd antenna provided in the communication terminal which concerns on this embodiment Explanatory drawing for demonstrating the function of the communication terminal which concerns on this embodiment It is explanatory drawing which shows the operation principle of the 2nd antenna used for the communication terminal which concerns on this embodiment, (a) is a closed state of a housing | casing, (b) is a 1st open state, (c) is 3rd Figure showing each open state It is a characteristic view which shows the directivity characteristic of the 2nd antenna used for the communication terminal which concerns on this embodiment, (a) is a figure which showed the xyz axis | shaft with respect to a housing | casing, (b) is the state which opened the housing | casing (1st And the third open state), (c) is a view showing a state in which the housing is closed, respectively. It is a characteristic view which shows the VSWR characteristic and impedance characteristic of a 2nd antenna when a 1st and 2nd housing member is made into a tight coupling state, (a), (b) is a closed state of a housing | casing, (c) , (D) is a diagram showing the first open state, respectively. It is explanatory drawing which shows the deformation degree of a flexible substrate accompanying the opening / closing operation | movement of the housing | casing which comprises the communication terminal which concerns on this embodiment, (a) is a closed state of a housing | casing, (b) is a 3rd open state. , (C) shows the first open state, respectively. It is explanatory drawing which shows the structure of the conventional communication terminal, and the principle of operation of an antenna, (a) is the state which closed the housing | casing, (b) is the figure which showed the open state, respectively. It is explanatory drawing which shows the deformation | transformation accompanying the opening / closing operation | movement of the flexible board | substrate wound helically provided in the conventional communication terminal, (a) shows the state which the housing | casing opened, (b) shows the closed state, respectively. Figure

Explanation of symbols

101 Housing 101a First housing member 101b Second housing member 101c, 101d Hinge mounting portion 101e D-shaped hole 101f Bearing portion 101g Main surface of second housing member 101h Right side of second housing member Surface 101i Main surface of first housing member 101j Rear surface of first housing member 101k Inner surface of second housing member 102 Hinge portion 103 Antenna 103a First antenna 103b Second antenna 103c First element portion 103d Second Element part 103e Reactance part 103f Concave part 103g Convex part 103h Power feeding part 104 Vibrator part 105 Operation part 105a First operation part 105b Second operation part 106 Receiver 107 Speaker 108 Microphone 109 Camera part 109a First camera part 109b Second camera part 110 First 1 Hall element 1 DESCRIPTION OF SYMBOLS 11 2nd Hall element 112 1st display part 113 2nd display part 114 1st permanent magnet 115 2nd permanent magnet 116 Printed circuit board 116a 1st printed circuit board 116b 2nd printed circuit board 116c Probe type pin connector 117 Transmission / reception part 118 Data processing part 119 Audio processing unit 120 Image processing unit 121 Information recording unit 122 Control unit 123a Projection 123b Clearance 124 Battery 125 First rotation shaft 125a Notch portion 125b Bearing portion 125c Partition portion 125d Slit 125e Screw hole 126 Second rotation shaft 127 Bearing Plate 127a Recessed portion 127b Bearing hole 128 Guide shaft 128a Large diameter portion 128b Small diameter portion 128c Parallel groove 128d D cut portion 129 First coil spring 130 First click convex plate 130a Convex portion 131 First click concave plate 131 Concave portion 132 Cam 133 Second click convex plate 133a Convex portion 134 Second coil spring 135 Bracket 135a Hole 136 E ring 137 First rotation shaft bearing 137a Groove 138 Hinge unit 139 Flexible substrate 139a Corner portion 139b First winding portion 139c Second winding part 140 Cable 141 Front cover 141a Engaging claw 141b Screw insertion hole 142 Rear cover 142a Engaging claw 142b Screw insertion hole 143a, 143b Fastening screw

Claims (7)

A first housing member that houses a first printed circuit board;
A second housing member that houses the second printed circuit board;
A hinge portion that connects the first housing member and the second housing member so as to be openable and closable;
An antenna provided in the second housing member;
A flexible conductor that electrically connects the first printed circuit board and the second printed circuit board;
The hinge portion includes a first rotating member and a second rotating member made of a conductor member,
The first rotating member is provided with a click generating means on one end side and a hollow bearing on the other end side so that the first casing member and the second casing member face each other. It becomes a shaft to rotate,
The click generating means has a guide shaft that is fixed to the first housing member in a non-rotating manner when rotating about the first rotating member.
The second rotating member is rotatably supported while one end side is orthogonal to the first rotating member, and the other end side extends in a direction away from the first rotating member. When the housing member and the second housing member are in a non-facing state, one of the housing members is rotated with respect to the other housing member about the first rotating member. It becomes an axis for rotating in the orthogonal direction,
The first casing member holds the other end side of the second rotating member,
The second casing member holds the guide shaft and the bearing while being separated from one surface side of the second printed circuit board,
The antenna is provided on the opposite side of the first rotating member across the second printed circuit board so as to be along the axial direction of the first rotating member, and one end of the antenna is arranged near the hollow bearing. And the other end is disposed on the other end side of the first rotating member beyond a portion where the second rotating member intersects the first rotating member,
An end portion of the antenna on one end side of the first rotating member is connected to a power feeding portion provided on the second printed circuit board,
The flexible conductor extends along the axis of the second rotating member and from the portion where the axis of the first rotating member intersects the axis of the second rotating member. Along the moving member, the first rotating member and the second rotating member are extended into the second casing member through the hollow bearing on the other end side of the first rotating member. A communication terminal, wherein the communication terminal is bent where it intersects with a rotating member.   The communication terminal according to claim 1, wherein a winding portion is formed on the flexible conductor disposed on one end side of the first rotating member.   3. The cable according to claim 2, wherein a cable is provided for electrically connecting the antenna and a transmission / reception unit provided on the second printed circuit board, and the cable is inserted into the winding unit. Communication terminal.   A cable for electrically connecting the first printed circuit board and the second printed circuit board is provided, and is inserted into the first rotating member so as to escape from the other end side of the first rotating member. The communication terminal according to claim 1, wherein the communication terminal is arranged.   The antenna includes a first element portion having a first electric length and a second element portion having a second electric length, and one end side of the first element portion and the second element portion is connected to the antenna. The communication terminal according to claim 1, wherein the communication terminal is connected by a reactance part having a reactance component, and the other end side of one of the two element parts is used as a power feeding part.   The electrical length of the first element portion is ¼ of the wavelength λ1 of the first frequency, and the electrical length of the second element portion is the sum of the electrical length of the first element portion and the wavelength λ2 of the second frequency. The communication terminal according to claim 5, wherein the communication terminal is formed to be ¼ or 3/8.   A receiving part and a transmitting part are arranged on the exposed surface side of the two casing members that are exposed when the two casing members are opened from the closed state, and the exposed surface The communication terminal according to claim 1, wherein the antenna is disposed in the vicinity of a rear hinge portion on the opposite side of the antenna.

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