JP3923984B2 - Wireless communication terminal - Google Patents

Description

  The present invention relates to a wireless communication terminal, and more particularly to a wireless communication terminal in which an antenna is mounted inside the terminal.

  Wireless communication terminals such as cellular phones and PHS (Personal Handyphone System) generally have multiple antennas. When the same wireless signal is received by these antennas, the antenna signal with excellent radio wave conditions is received. Diversity method is used to increase the stability of the call with priority.

  As one of the multiple systems of antennas, there is an external antenna such as a lot antenna. This external antenna extends the distance from the human body (head), which is a conductor, by extending the antenna from the terminal housing. It is configured to ensure and obtain good sensitivity.

  By the way, as shown in FIG. 5, some wireless communication terminals include a housing having a hinge 42 having a plurality of rotating shafts 40 and 41 and capable of opening and closing, and such a wireless communication terminal. Is normally held by the user in a folded state (see FIG. 5 (a)), and is used in a state where the housing is unfolded (see FIG. 5 (b)) during a call. In some cases, it is possible to perform photographing using the attached digital camera function in a state where the body is folded up to the opposite side (see FIG. 5C) (see, for example, Patent Document 1).

  In such a wireless communication terminal, when the housing is expanded, the wireless communication terminal is rotated about the rotation axis of the housing provided with the receiver (speaker) (see FIG. 5B). Not limited to, for example, when rotating around the rotation axis of the casing in which the communication unit (microphone) is provided (see FIG. 5D), or centering on both rotation axes of the hinge In some cases, the casings rotate and unfold (FIG. 5E).

Therefore, a hinge is composed of a member having a recess and a member having a projection formed by pushing out a ball with a spring, and the projection is slid along the recess so that the order and development of the housings are developed. A method for defining the hour angle has been proposed (see, for example, Patent Document 2).
JP 2002-198849 A JP 2004-308710 A

  By the way, for example, when designing a wireless communication terminal having a hinge described in Patent Document 2, even if it is not desired to make a bulge on the surface of the housing, the antenna and the human body are simply built into the external antenna. Therefore, there is a possibility that an appropriate distance from the antenna cannot always be secured and the antenna gain necessary for wireless communication is impaired.

  In addition, in a portable communication terminal having a biaxial hinge, when a built-in antenna is used instead of an external antenna, even if the housing can be deployed at an angle defined during a call, the built-in antenna and the human body If an appropriate distance cannot be secured, the antenna gain necessary for wireless communication may be impaired.

  Therefore, an object of the present invention is to provide a wireless communication terminal capable of preventing loss of antenna gain during wireless communication.

The present invention provides a wireless communication terminal comprising a first housing, a second housing, and a hinge having a first rotating shaft and a second rotating shaft which are parallel to each other, The second casing and the hinge after the first casing is rotated in the opening direction about the first rotation axis connecting the casing and the hinge to an angle defined during a call . The second casing is disposed in the vicinity of the second pivot axis of the second casing, and the coupling section in which the second casing pivots in the opening direction around the second pivot axis connected to the first casing. characterized by comprising a built-in antenna.
In the wireless communication terminal according to the present invention, the wireless communication terminal includes a first housing, a second housing, and a hinge having a first rotation shaft and a second rotation shaft that are parallel to each other. After the second casing rotates in the closing direction to an angle defined during a call around the second rotation axis connecting the second casing and the hinge, the first casing and A connecting portion in which the first casing rotates in the closing direction around the first rotation axis to which the hinge is connected, and the second casing in the vicinity of the second rotation axis And a built-in antenna.
In the wireless communication terminal according to the present invention, the wireless communication terminal includes a first housing, a second housing, and a hinge having a first rotation shaft and a second rotation shaft that are parallel to each other. The first case rotates about the first rotation axis where the first case and the hinge are connected, and the second time where the second case and the hinge are connected. It is characterized by comprising a connecting portion for rotating the second casing around a moving axis, and a built-in antenna arranged in the vicinity of the second rotating shaft of the second casing.

Further, it is desirable that the internal antenna is disposed on an inner side surface of the second casing in the vicinity of the second rotation shaft.

  In the present invention, the first housing and the second housing are joined via a connecting portion formed of a hinge having two rotation shafts of a first rotation shaft and a second rotation shaft in parallel. The first housing can be bent around the connecting portion, and the first housing rotates around the first rotation shaft connecting the first housing and the hinge. After being moved and deployed, the second housing can be rotated and deployed about the second rotation axis where the second housing and the hinge are connected. In the wireless communication terminal, the antenna installation area is formed in the vicinity of the second rotation axis of the second casing, and the antenna is built in the antenna installation area. There is an effect that gain can be obtained.

  The best mode for carrying out a wireless communication terminal according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram illustrating an example of a configuration of a wireless communication terminal according to the present embodiment. As shown in FIG. 1A, the wireless communication terminal 10 includes an operation unit (second transmission unit) provided with an input button for inputting a telephone number and a microphone (transmission unit) 10-1 for inputting voice during a call. (Housing) 11 and an output unit (first housing) provided with a display screen for displaying a number input by an input button, a speaker (receiving unit) 10-2 for outputting voice during a call, and the like The antenna is built in the antenna installation area 13 on the upper outside in the operation unit 11 (the side that is outside when the housing is folded).

  The operation unit 11 and the output unit 12 are connected by a hinge 14 having two parallel rotation shafts, and the operation unit 11 is centered around the rotation shafts 15 and 16 as shown in FIG. And the output unit 12 are rotated to open and close the housing.

  FIG. 2 is a diagram illustrating an example of a configuration of a coupling unit that couples the operation unit and the output unit. In the case of unfolding the housing in the folded state (reference) as shown in FIG. 5A, first, the output unit 12 rotates in the opening direction around the rotation shaft 16, and a preset angle is set. (For example, 160 °) is developed (see FIG. 2B).

  Here, when the output unit 12 in a state of being rotated and deployed about the rotation shaft 16 is further expanded, the operation unit 11 and the hinge 14 are rotated in the opening direction about the rotation shaft 15 (FIG. 2). (See (c)), when the output unit 12 comes into contact with the back surface of the operation unit 11, the rotation stops and the output unit 12 expands approximately 360 ° (see FIG. 2D).

  For this reason, when performing wireless communication (call), the housing is unfolded at a predetermined angle, and the antenna installation region 13 above the operation unit 11 is located on the human body (head) as shown in FIG. ).

  Therefore, by providing an antenna in this antenna region, an appropriate distance between the antenna and the human body is ensured, and loss of antenna gain during wireless communication is prevented.

  FIG. 3 is a diagram illustrating an example of the configuration of the antenna of the wireless communication terminal in the embodiment. As shown in the figure, the antenna 20 includes a main body portion 21 for transmitting and receiving radio waves and a connection portion 22 for installation in a housing. 3A is a front view of the antenna, and FIG. 3B is a side view when the antenna is viewed from below in FIG. 3A.

  The main body 21 has a length of λ / 4 × n (λ: frequency, n: integer), and is configured such that the width of the tip 23 is wide. For this reason, it is possible to obtain good reception sensitivity and to receive radio waves in a wide band satisfactorily.

  The connecting portion 22 has a curved shape, has a welding pin hole 24 for fixing an antenna through a welding pin provided in the housing, and for connecting to a communication circuit. The contact part 25 is provided in this curved part.

  And the connection part 22 has elasticity similarly to a leaf | plate spring etc., and it is comprised so that the contact part 25 may connect with the electric power feeding point (communication circuit) mentioned later using this warping force.

  FIG. 4 is a diagram illustrating a configuration of an antenna installed in the operation unit of the housing. Here, the operation unit 11 is configured to overlap and join the operation surface side on which operation buttons and the like are provided and the back surface side that is the outside when the housing is folded, as shown in FIG. FIG. 4 is a view of the casing on the operation surface side as viewed from the inside, and FIG. 4B is a diagram showing an area of the back-side casing corresponding to the area 30 in FIG.

  Then, the antenna 20 is connected to the feeding point 26 of the casing 11-1 on the operation surface side (see FIG. 4A), and above the casing 11-2 on the back surface side (in FIG. 4, toward). It is installed on the upper right side (see FIG. 4B).

  Using the above configuration, when the wireless communication terminal in the present embodiment expands the operation unit and the output unit to perform wireless communication (call), the antenna is placed at a location away from the head of the person performing wireless communication. Can be positioned.

  As described above, since the wireless communication terminal according to the present embodiment is provided with the antenna above the casing operation unit, unlike the case where an external antenna such as a lot antenna is used, the casing is opened to perform wireless communication such as a call. In this case, the distance between the human body (head) and the antenna can be sufficiently ensured regardless of how the housing is opened.

  For this reason, it is possible to prevent the occurrence of a problem that the gain of the antenna is lost depending on how the housing is opened.

  In addition, since the angle when the housing is opened can be defined using the configuration of the connecting portion such as a hinge, the gain loss of the antenna can be more reliably prevented.

  In the above description, the case where the case is opened for a call has been described as an example. However, for example, there is an incoming call in a state where the TV is expanded 360 ° and the TV is viewed. The present invention can also be applied when the angle is set to 160 ° (for example, 160 °). That is, when closing the case, contrary to opening, the operation unit 11 and the hinge 14 first rotate around the rotation shaft 15, and then the output unit 12 and the hinge move around the rotation shaft 16. Even if it is configured to rotate, the same effect can be obtained.

1 is a schematic diagram illustrating an example of a configuration of a wireless communication terminal according to a first embodiment. The figure which shows in detail an example of a structure of the connection part which connects the operation part and output part in Example 1. FIG. The figure which shows an example of a structure of the antenna of the radio | wireless communication terminal in Example 1. FIG. The figure which shows the structure of the antenna installed in the operation part of the housing The figure which shows an example of a structure of the conventional radio | wireless communication terminal provided with the lot antenna

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Wireless communication terminal 10-1 ... Transmission part 10-2 ... Reception part 11 ... Operation part 11-1 ... Operation surface side housing | casing 11-2 ... Back surface side housing | casing 12 ... Output part 13 ... Antenna installation area 14, DESCRIPTION OF SYMBOLS 42 ... Hinge 15, 16, 40, 41 ... Turning axis 20 ... Antenna 21 ... Main-body part 22 ... Connection part 23 ... Tip 24 ... Welding pin hole 25 ... Contact part 26 ... Feeding point 30 ... Corresponding area | region

Claims (2)

A first housing having a receiver on the first surface ;
A second housing having a transmitter on the second surface ;
The first rotation axis is composed of a hinge having a first rotation axis and a second rotation axis that are parallel to each other, and the first rotation axis is connected to the first housing and the hinge. After the casing is rotated in the opening direction and rotated to an angle defined in advance as an angle formed by the first casing and the second casing during a call , the second casing and the A connecting portion in which the second casing rotates in the opening direction around the second rotation axis connected to the hinge;
When the first case and the second case form an angle defined during a call, in the vicinity of the second rotation axis on the back surface facing the second surface . A wireless communication terminal comprising a built-in antenna at least partially disposed on an extension of a plane including one rotating shaft and the second rotating shaft . The wireless communication terminal according to claim 1, wherein the built-in antenna is disposed in the vicinity of the side surface of the back surface facing the second surface .

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