JP2010258826A - Mobile wireless device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile wireless device capable of suppressing deterioration in antenna characteristics of a coaxial, and capable of efficiently securing the coaxial cable inside a cabinet. <P>SOLUTION: A mobile wireless device includes: a cabinet 2 which is configured by combining a first case 22 and a second case 21 and has first ribs 221 provided in the first case 22 and extending to a side of the second case 21; an antenna; a circuit board provided inside the cabinet 2; a reference potential part 25 provided inside the second case 21; and a coaxial cable 100 which is provided inside the cabinet 2 and has an inner conductor, an inner insulator, an outer conductor and an outer insulator, in which an exposed conductor 135 is formed from the exposed outer conductor, and which electrically connects the antenna and the circuit board via the inner conductor. The first ribs 221 press the coaxial cable 100 so as to press the exposed conductor 135 to the reference potential part 25 directly or via a connecting member 150 comprised of a conductor. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a portable wireless device such as a cellular phone.

2. Description of the Related Art In mobile phones as portable wireless devices, housings are becoming thinner and smaller (for example, smaller in the surface direction perpendicular to the thickness direction). For example, the size of the main circuit board (the largest circuit board among the circuit boards inside the housing) is designed to be about half the size of the housing in the surface direction, and the main circuit board is not arranged. Reduction of the thickness of the housing in the region is performed.
On the other hand, in a mobile phone as a portable wireless device, for example, with the downsizing of the main circuit board as described above, a main antenna for performing wireless communication is disposed at a position away from the main circuit board in the housing. Sometimes. In that case, it is necessary to electrically connect the main circuit board and the main antenna by a coaxial cable.

  The coaxial cable includes an inner conductor, an inner insulator that covers the inner conductor, an outer conductor that is provided on the outer peripheral side of the inner insulator, and an outer insulator that covers the outer conductor. In the coaxial cable, both end portions of the coaxial cable are electrically connected to the main circuit board or the main antenna via the inner conductor at each of both end portions, and in order to further suppress deterioration of antenna characteristics in the coaxial cable. In each, it is electrically connected to the reference potential portion via an external conductor.

In order to further suppress the deterioration of the antenna characteristics of the coaxial cable, it is preferable to electrically connect the outer conductor of the coaxial cable and a reference potential portion provided inside the housing in the middle portion of the coaxial cable ( For example, see Patent Document 1). In the technique described in Patent Document 1, a conductive cylindrical material is provided in a portion where an external insulator of a coaxial cable is removed, and the casing is formed of a conductive material so as to function as a reference potential portion. A technique for providing a slit portion integrated with a housing at a location corresponding to a cylindrical material is described.
According to the technique described in Patent Document 1, by inserting a conductive cylindrical material provided in a coaxial cable into a slit portion, an outer conductor of the coaxial cable and a casing as a reference potential portion in the middle portion of the coaxial cable Can be electrically connected.

JP 2009-60302 A

However, according to the technique described in Patent Document 1, in the process of fixing the coaxial cable inside the casing, it is necessary to perform an operation of inserting the conductive cylindrical material provided in the coaxial cable into the slit portion. There is a problem that the work of fixing the coaxial cable inside the casing is complicated.
The above-mentioned problem may occur in portable radio devices other than mobile phones as well.

  Therefore, an object of the present invention is to provide a portable wireless device that can suppress deterioration of antenna characteristics of a coaxial cable and can efficiently fix the coaxial cable inside a casing.

  The present invention is configured by combining a first case and a second case, and a housing having a first rib provided on the first case and extending toward the second case, an antenna, and an interior of the housing A circuit board provided on the inside of the second case, a reference potential portion provided on the inner side of the second case, an internal conductor provided inside the housing, an internal insulator covering the internal conductor, and an internal insulator An outer conductor provided on the outer peripheral side and an outer insulator covering the outer conductor, an exposed conductor portion is formed from the outer conductor exposed without being covered by the outer insulator, and the inner conductor is interposed therebetween. A coaxial cable that electrically connects the antenna and the circuit board, and the first rib is pressed against the reference potential portion directly or via a connecting member made of a conductor. The coaxial cable It relates to a portable wireless device that presses the bull.

  Preferably, at least two first ribs of the first case are provided, and the external insulator is pressed on both sides of the exposed conductor portion in the longitudinal direction of the coaxial cable.

  The second case is formed by insert-molding a sheet metal member into a resin member, the circuit board includes a reference potential line that is electrically connected to the sheet metal member, and the reference potential portion is formed of the sheet metal member. It is preferable.

  The housing includes a second rib that forms an inner wall of a battery housing portion that houses a battery, and the exposed conductor portion of the coaxial cable is between the peripheral wall of the housing and the second rib. It is preferable that the battery is pressed and the second rib is pressed against the peripheral wall in a state where the battery is accommodated in the battery accommodating portion.

  The battery includes a positive electrode terminal, a negative electrode terminal, and a resin portion formed by low-temperature low-pressure molding in a state where the positive electrode terminal and the negative electrode terminal are exposed, and the second rib is formed by the resin portion. It is preferable to press.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to suppress degradation of the antenna characteristic of a coaxial cable, the portable radio | wireless apparatus which can fix a coaxial cable inside a housing | casing efficiently can be provided.

It is a perspective view which shows the mobile telephone 1 of one Embodiment of this invention in an open state. It is a perspective view showing cellular phone 1 of one embodiment of the present invention in a closed state. FIG. 6 is an exploded perspective view showing components built in the operation unit side body 2. FIG. 4 is a partial perspective view of the operation unit side body 2 in a state in which the rear case 22 is separated as viewed from the inside of the front case 21. FIG. 5 is a plan view of the main circuit board 70 as viewed from the first surface 70a side. FIG. 4 is a partial perspective view of the operation unit side body 2 in a state in which the rear case 22 is separated as viewed from the inside of the front case 21. FIG. 7 is a partial perspective view showing a state where the coaxial cable 100 and the main antenna 80 are separated from the front case 21 from the state shown in FIG. 6. 1 is a front view showing a coaxial cable 100. FIG. 1 is a perspective view showing a cross section of a coaxial cable 100. FIG. It is the sectional view on the AA line shown to FIG. 8A. It is a BB sectional view taken on the line in FIG. 8A. FIG. 5 is a partial perspective view of the operation unit side body 2 in a state where the front case 21 is separated as viewed from the inside of the rear case 22. FIG. 10 is a partial perspective view showing a state where the coaxial cable 100 is separated from the rear case 22 from the state shown in FIG. 9. 3 is a perspective view showing a battery 230. FIG. FIG. 5 is a partial perspective view of the operation unit side body 2 with the battery lid 23 removed as viewed from the outside of the rear case 22. It is the fragmentary sectional view cut | disconnected by the CC line | wire shown in FIG. It is the fragmentary sectional view cut | disconnected by the DD line | wire shown in FIG. It is a fragmentary sectional view which shows the state which accommodated the battery 230 in the battery accommodating part 27 shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the basic structure of a mobile phone 1 that is an embodiment of the mobile wireless device of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing a mobile phone 1 according to an embodiment of the present invention in an open state. FIG. 2 is a perspective view showing the cellular phone 1 according to the embodiment of the present invention in a closed state.

  As shown in FIGS. 1 and 2, the mobile phone 1 according to the present embodiment is a foldable mobile phone 1, and includes an operation unit side body 2 as a substantially rectangular parallelepiped casing, and a substantially rectangular parallelepiped display. And a connection unit 4 that connects the operation unit side body 2 and the display unit side body 3.

  An upper end portion of the operation unit side body 2 and a lower end portion of the display unit side body 3 are connected to each other through a connection unit 4 so as to be opened and closed. That is, the connection part 4 connects the display part side housing | casing 3 and the operation part side housing | casing 2 so that opening and closing is possible centering on an opening-and-closing axis | shaft. The mobile phone 1 is configured such that the operation unit side body 2 and the display unit side body 3 and the display unit side body 3 connected via the connection unit 4 are relatively rotated (rotated), thereby displaying the operation unit side body 2 and the display. The display unit side body 3 is deformed into a state in which the operation unit side body 3 and the display unit side body 3 are folded (closed state, see FIG. 2). Is done.

In the description of each component of the present embodiment, when the mobile phone 1 is in the folded state shown in FIG. 2, the direction from the connecting portion 4 toward the opposite side is referred to as “first direction D1”. A direction orthogonal to the one direction D1 and the thickness direction D3 is referred to as a “second direction D2.”
Further, in the first direction D1, the direction from the connecting portion 4 toward the opposite side is referred to as “front end direction D11”, and the direction opposite to the front end direction D11 is referred to as “base end direction D12”. Of the thickness direction D3, a direction from the operation unit side body 2 to the display unit side body 3 is referred to as a “front surface direction D31”, and a direction opposite to the front surface direction D31 is referred to as a “back surface direction D32”. Of the second direction D2, the left direction and the right direction when the mobile phone 1 is viewed in the back direction D32 are referred to as “left direction D21” and “right direction D22”, respectively.

  First, the operation unit side body 2 will be described. As shown in FIGS. 1 and 2, the operation unit side body 2 includes a front case 21 as a second case, a front cover 24, and a rear case 22 as a first case that form an outer shell. The front case 21 and the front cover 24 constitute the front surface 2 a side of the operation unit side body 2. The front surface 2 a of the operation unit side body 2 is a surface facing the display unit side body 3 in a state in which the mobile phone 1 is folded. The rear case 22 constitutes a back surface 2b side that is a surface opposite to the front surface 2a in the operation unit side body 2.

  The front case 21 constitutes the outer peripheral portion of the front surface 2a. The front case 21 is formed by insert-molding a sheet metal member 25 into a resin member 26. A portion inside the outer peripheral portion (inner portion) is mainly formed from an exposed portion of the sheet metal member 25, and is recessed toward the back surface 2b.

  The front cover 24 is disposed so as to close the inner portion of the front case 21. The front cover 24 is configured such that the operation key group 11 is exposed to the front surface 2a. The operation key group 11 includes input of a function setting operation key 13 for operating various settings, various functions such as a telephone book function and a mail function, and a numeric keypad for inputting a telephone number and characters such as mail. An operation key 14 and a determination operation key 15 for determining various operations and scrolling in the up, down, left, and right directions are provided.

  A predetermined function is assigned to each key constituting the operation key group 11 according to the open / closed state of the operation unit side body 2 and the display unit side body 3 and the type of application being activated (key).・ Assign). In the mobile phone 1, when each key constituting the operation key group 11 is pressed by the user, an operation corresponding to the function assigned to each key is executed.

  On the front surface 2 a of the operation unit side body 2, a voice input unit 12 to which a voice uttered by the user of the mobile phone 1 during a call is input. The voice input unit 12 is disposed in the vicinity of the end (lower end) on the opposite side of the connection unit 4 in the longitudinal direction of the operation unit side body 2.

The side surface of the operation unit side body 2 is charged with, for example, an interface for transmitting / receiving data to / from an external device (for example, a host device), a headphone / microphone terminal, a removable external memory interface, or a battery. Charging terminals and the like are provided.
The internal structure of the operation unit side body 2 will be described later.

  Next, the display unit side body 3 will be described. As shown in FIGS. 1 and 2, the display unit side body 3 includes a front case 30a, a cover member 33, and a rear case 30b that form an outer shell. The front case 30 a and the cover member 33 constitute the front surface 3 a side of the display unit side body 3. The front surface 3a of the display unit side body 3 is a surface facing the operation unit side body 2 in a state where the mobile phone 1 is folded. The rear case 30b constitutes a back surface 3b side that is a surface opposite to the front surface 3a in the display unit side body 3.

  The front case 30a is provided with a voice output unit 31 that outputs voice on the other side of the call. The audio output unit 31 is disposed on the end side opposite to the connection unit 4 in the longitudinal direction of the display unit side body 3.

  A main display portion 34a is provided on one surface of the main liquid crystal module 34 (the surface on the front case 30a side), and various information is displayed on the main display portion 34a. The main display part 34a is visible from the front surface 3a side of the display unit side body 3 through a cover member 33 that is entirely or partially transparent.

  The main liquid crystal module 34 includes a liquid crystal panel, a drive circuit that drives the liquid crystal panel, and a backlight that emits light from the back side of the liquid crystal panel.

  Next, the internal structure of the operation unit side body 2 will be described with reference to FIGS. 3 to 15. FIG. 3 is an exploded perspective view showing components built in the operation unit side body 2. FIG. 4 is a partial perspective view of the operation unit side body 2 with the rear case 22 separated from the inside of the front case 21. FIG. 5 is a plan view of the main circuit board 70 as viewed from the first surface 70a side. FIG. 6 is a partial perspective view of the operation unit side body 2 with the rear case 22 separated from the inside of the front case 21. FIG. 7 is a partial perspective view showing a state where the coaxial cable 100 and the main antenna 80 are separated from the front case 21 from the state shown in FIG.

  As shown in FIGS. 3 and 4, the operation unit side body 2 includes a front cover 24, a key structure 40, a key board 50, a front case 21, a shield case 60, and a main circuit as a circuit board. The board 70, the rear case 22, the battery 230, the battery lid 23, the main antenna 80, the antenna board 90, and the coaxial cable 100 are provided.

The front case 21 is configured by integrally forming a metal sheet metal member 25 and a resin member 26 covering a part of the sheet metal member 25 by insert molding.
The resin member 26 mainly forms an outer peripheral portion of the front case 21 in a frame shape.
The sheet metal member 25 mainly forms a portion inside the frame-shaped resin member 26 in the front case 21. Specifically, the first surface 25 a of the sheet metal member 25 constitutes a surface on the side facing the key substrate 50 in the front case 21. The second surface 25b of the sheet metal member 25 constitutes a surface facing the shield case 60, the rear case 22, the battery 230, and the like.
The sheet metal member 25 also functions as a reference potential portion inside the operation unit side body 2.

  The front cover 24 is disposed so as to close a concave region formed by being surrounded by the frame-shaped resin member 26 in the front case 21. Further, the front case 21 and the rear case 22 are arranged so that the inner surfaces of the concave shapes face each other, and are joined so that the outer peripheral edges thereof overlap each other.

The key structure portion 40 and the key substrate 50 are incorporated so as to be sandwiched between the front cover 24 and the first surface 25 a of the sheet metal member 25 in the front case 21. Further, the shield case 60 and the main circuit board 70 are incorporated so as to be sandwiched between the second surface 25 b of the sheet metal member 25 in the front case 21 and the rear case 22.
That is, in the operation unit side body 2, the battery lid 23, the battery 230, the rear case 22, the main circuit board 70, the shield case 60, the sheet metal member 25, the key board 50, the key structure part 40, and the front cover 24 are They are stacked in order.

  In the front cover 24, key holes 13 a, 14 a, and 15 a are formed on the inner surface facing the main display portion 34 a of the display unit side body 3 in the closed state of the mobile phone 1. From each of the key holes 13a, 14a, 15a, the pressing surface of the function setting operation key member 13b constituting the function setting operation key 13, the pressing surface of the input operation key member 14b constituting the input operation key 14, and the determination operation key 15 The pressing surface of the determination operation key member 15b that constitutes is exposed.

  As shown in FIG. 5, a plurality of electronic components 71 including a signal processing unit that processes signals transmitted and received by the main antenna 80 are arranged on the main circuit board 70. These electronic components 71 form a plurality of circuit blocks by a predetermined combination. For example, various circuit blocks including an RF (Radio Frequency) circuit, a power supply circuit, and the like are formed on the main circuit board 70.

  In addition to the plurality of electronic components 71 to be mounted, a reference potential pattern layer 75 as a reference potential line is formed on the first surface 70a of the main circuit board 70 on the shield case 60 side. The reference potential pattern layer 75 is formed by printing a conductive member in a predetermined pattern on the surface of the first surface 70a of the main circuit board 70. The reference potential pattern layer 75 is formed at a position where a rib portion 61 of a shield case 60 described later is provided.

The main circuit board 70 is arranged in an approximately half region on the base end direction D12 side (the connecting portion 4 side) inside the operation unit side body 2 in the first direction D1. In other words, the main circuit board 70 is not arranged in a region about half of the distal end direction D11 side (the side opposite to the connecting portion 4) inside the operation unit side body 2.
The shield case 60 is also arranged in the same manner as the main circuit board 70 in the first direction D1.

The battery accommodating portion 27 is disposed in an area where the main circuit board 70 and the shield case 60 are not disposed. The battery housing part 27 is a part that houses the battery 230 when the battery 230 is mounted on the operation unit side body 2. Details of the configuration of the battery accommodating portion 27 will be described later.
The battery housing portion 27 is arranged in a region about half of the distal direction D11 side (opposite the connecting portion 4) inside the operation unit side body 2 in the first direction D1. In other words, the main circuit board 70, the shield case 60, and the battery housing portion 27 are arranged in series in the first direction D1.

  As shown in FIGS. 3 to 5, a terminal block 72 is disposed on the edge of the main circuit board 70 on the battery accommodating portion 27 side (front end direction D11 side). A first power supply terminal 72a, a second power supply terminal 72b, and a determination terminal 72d are provided on the surface of the terminal block 72 on the battery housing portion 27 side. The base ends of the first power supply terminal 72a, the second power supply terminal 72b, and the determination terminal 72d are accommodated in a terminal base body 72c made of an insulator.

In a state where the battery 230 is housed and mounted in the battery housing portion 27, the first power supply terminal 72a is in contact with the positive electrode terminal 231, the second power supply terminal 72b is in contact with the negative electrode terminal 232, and the determination terminal 72d is the determination electrode terminal. 234 (details will be described later).
The first power supply terminal 72 a, the second power supply terminal 72 b, and the determination terminal 72 d are made of an elastic metal piece or the like, and are provided to protrude from the terminal base body 72 c so as to generate an urging force toward the battery housing portion 27. .

A second connection member 73 is provided on the first surface 70 a in the vicinity of the edge on the battery housing portion 27 side of the main circuit board 70. The second connection member 73 is a member for electrically connecting the reference potential pattern layer 75 of the main circuit board 70 and the sheet metal member 25 of the front case 21. As shown in FIG. 4, the second connection member 73 is made of an elastic metal piece or the like, and can generate a biasing force toward the sheet metal member 25 from the first surface 70 a of the main circuit board 70 to the sheet metal member 25. Toward the front (in the front direction D31).
The reference potential pattern layer 75 is electrically connected to the sheet metal member 25 and has the same potential as the sheet metal member 25.

  As shown in FIG. 4, a first connection terminal 74 is provided on the second surface 70 b (the surface opposite to the first surface 70 a) of the main circuit board 70. The first connection terminal 74 is located in the vicinity of the edge portion on the distal direction D11 side and in the vicinity of the edge portion on the right direction D22 side in the second surface 70b. A first connector 161 (described later) of the coaxial cable 100 is connected to the first connection terminal 74.

  In the main circuit board 70, the first connection terminal 74 is connected to a predetermined electronic component 71 through a wiring (not shown). As a result, a high frequency signal transmitted from the electronic component 71 mounted on the main circuit board 70 is transmitted to the main antenna 80 via the coaxial cable 100 and the antenna board 90. The high frequency signal received by the main antenna 80 is transmitted to the electronic component 71 mounted on the main circuit board 70 via the antenna board 90 and the coaxial cable 100.

  The shield case 60 includes a rib portion 61 disposed so as to surround the plurality of electronic components 71 on the first surface 70a of the main circuit board 70, and an end portion of the rib portion 61 on the side away from the main circuit board 70 (front direction). And a flat plate part 62 that covers the plurality of electronic components 71.

The rib portion 61 is disposed on the reference potential pattern layer 75 formed on the first surface 70 a of the main circuit board 70. The rib portion 61 is formed to be equal to or higher than the height of the highest electronic component among the various electronic components mounted on the main circuit board 70.
The rib portion 61 and the flat plate portion 62 are integrally formed by pressing a sheet metal member. The flat plate portion 62 surrounds and covers the first surface 70 a side of the main circuit board 70 together with the rib portions 61.

  The shield case 60 is electrically connected to the reference potential pattern layer 75 by bringing the tip end side of the rib portion 61 into contact with the reference potential pattern layer 75. The shield case 60 is electrically connected to the reference potential pattern layer 75 to have the same potential as the reference potential pattern layer 75. Therefore, the shield case 60 has the same potential as the sheet metal member 25.

  The shield case 60 prevents external noise such as high frequency from acting on the plurality of electronic components 71 disposed on the main circuit board 70. Specifically, the bottom surface of the rib portion 61 in the shield case 60 is disposed on the reference potential pattern layer 75, so that the plurality of electronic components 71 are surrounded by the rib portion 61 and covered with the flat plate portion 62. Thereby, it can suppress that noise, such as a high frequency from the outside, acts on the electronic component 71 arrange | positioned at the main circuit board 70. FIG.

  The key substrate 50 is a flexible substrate formed by interposing a wiring between a plurality of insulating layers (insulating films). The key substrate 50 is disposed on the first surface 25a side (front surface direction D31 side) of the sheet metal member 25 constituting the front case 21.

  The key board 50 includes a plurality of key switches 51, 52, 53 formed on the key structure 40 side corresponding to the function setting operation key 13, the input operation key 14, and the determination operation key 15, respectively. The key switches 51, 52, and 53 have a metal dome that is a metal plate that is three-dimensionally curved in a bowl shape. When the apex of the bowl-like shape is pressed, the metal dome comes into contact with a switch terminal formed on an electric circuit (not shown) printed on the surface of the key substrate 50 so as to be electrically connected. Composed.

  The key structure portion 40 is disposed to face the front surface direction D31 side of the key substrate 50. In other words, the key structure 40 is disposed on the opposite side of the sheet metal member 25 with the key substrate 50 interposed therebetween. The key structure portion 40 is a base sheet in which a pusher capable of pressing a plurality of key switches 51, 52, 53 and a key top having a pressing surface of the operation key group 11 are made of elastic silicon rubber or the like. It is provided and configured. The function setting operation key 13, the input operation key 14, and the determination operation key 15 constituting the operation key group 11 in the key structure unit 40 are arranged at positions facing the key switches 51, 52, 53 on the key substrate 50, It arrange | positions so that it may expose from the key holes 13a, 14a, and 15a formed in the front cover 24. FIG.

  The main antenna 80 is configured by providing an antenna element (not shown) having a predetermined shape on a base. The main antenna 80 is disposed at the end of the operation unit side body 2 on the side opposite to the connection unit 4 (on the tip direction D11 side). The antenna element of the main antenna 80 is formed of a strip-shaped sheet metal. The main antenna 80 is supplied with power from the main circuit board 70 via the coaxial cable 100 and the antenna board 90. Thereby, the antenna element is connected to the RF module or the like of the main circuit board 70.

As shown in FIGS. 6 and 7, the antenna board 90 is a circuit board that is disposed in the vicinity of the main antenna 80 and electrically connects the coaxial cable 100 and the main antenna 80. The antenna substrate 90 includes a substrate portion 91 and second connection terminals 92. The second connection terminal 92 is provided on the second surface 91 b of the substrate portion 91 on the rear case 22 side (rear direction D32 side). A second connector 162 (not shown) of the coaxial cable 100 is connected to the second connection terminal 92. According to the antenna substrate 90, the coaxial cable 100 and the main antenna 80 can be electrically connected.
The rear case 22, the main antenna 80, the antenna substrate 90, and the front case 21 are stacked in this order at the end of the operation unit side body 2 opposite to the connecting portion 4 (front end direction D11).

  As shown in FIG. 3, a removable battery lid 23 is provided on one end side (front end direction D11 side) of the rear case 22. The battery lid 23 is attached to the rear case 22 after the battery 230 is accommodated in the battery accommodating portion 27 from the outside of the rear case 22. Moreover, the microphone (not shown) of the audio | voice input part 12 which inputs a user's audio | voice is accommodated in the one end side in the rear case 22. FIG.

  Next, the coaxial cable 100 will be described. FIG. 8A is a front view showing the coaxial cable 100. FIG. 8B is a perspective view showing a cross section of the coaxial cable 100. 8C is a cross-sectional view taken along line AA shown in FIG. 8A. 8D is a cross-sectional view taken along line BB shown in FIG. 8A. FIG. 9 is a partial perspective view of the operation unit side body 2 in a state in which the front case 21 is separated as viewed from the inside of the rear case 22. FIG. 10 is a partial perspective view showing a state where the coaxial cable 100 is separated from the rear case 22 from the state shown in FIG.

  As shown in FIGS. 8A to 8D, the coaxial cable 100 includes an inner conductor 110, an inner insulator 120 that covers the inner conductor 110, an outer conductor 130 provided on the outer peripheral side of the inner insulator 120, and an outer conductor 130. And an external insulator 140 covering the surface. The inner insulator 120 and the outer insulator 140 are made of an elastically deformable material such as polyethylene. Therefore, the coaxial cable 100 can be elastically deformed as a whole.

  In the coaxial cable 100, the external insulator 140 is not partially provided, and therefore, a part of the external conductor 130 is exposed. An exposed conductor portion 135 is formed from the exposed outer conductor 130. In the vicinity of the exposed conductor portion 135, a clamp member 150 as a connection member made of a conductor is provided. The clamp member 150 is fixed only to the outer conductor 130 by fastening a part or the entire area of the exposed conductor portion 135, or is fixed across the outer conductor 130 and the outer insulator 140.

  The clamp member 150 is not particularly limited as long as it can be fixed to the external conductor 130 or the like by being fastened to the exposed conductor portion 135. The clamp member 150 in the present embodiment is made of a substantially cylindrical metal member having a C-shaped (substantially annular shape, partially discontinuous shape) cross section. The C-shaped clamp member 150 can be fixed to the external conductor 130 or the like by, for example, arranging the clamp member 150 so as to cover the exposed conductor portion 135 and then deforming the clamp member 150 by caulking. By fixing the clamp member 150 to the outer conductor 130, the outer conductor 130 and the clamp member 150 are electrically connected.

A first connector 161 is provided at one end of the coaxial cable 100. The first connector 161 is connected to the first connection terminal 74 on the main circuit board 70.
A second connector 162 is provided at the other end of the coaxial cable 100. The second connector 162 is connected to the second connection terminal 92 on the antenna substrate 90.

  As shown in FIGS. 6, 7, 9, and 10, the coaxial cable 100 electrically connects the main antenna 80 and the main circuit board 70 via the inner conductor 110. The coaxial cable 100 is provided inside the operation unit side body 2. Specifically, the coaxial cable 100 mainly extends over a region corresponding to the battery housing portion 27 along the peripheral wall in the right direction D22 of the operation unit side body 2 (right first direction peripheral wall 211B, etc., which will be described in detail later). Arranged.

The “circumferential wall” in the operation unit side body 2 means a wall part that forms a peripheral edge when the operation unit side body 2 is viewed in the thickness direction D3. The peripheral wall partitions the internal space (such as the battery housing portion 27) and the external space of the operation unit side body 2 when the operation unit side body 2 is viewed in the thickness direction D3.
Note that the “surrounding wall” is also used for the front case 21 and the rear case 22 in the same manner as the operation unit side body 2.

  Next, a configuration relating to the electrical connection between the exposed conductor portion 135 of the coaxial cable 100 and the sheet metal member 25 as the reference potential portion will be described. FIG. 11 is a perspective view showing the battery 230. FIG. 12 is a partial perspective view of the operation unit side body 2 with the battery lid 23 removed as viewed from the outside of the rear case 22. 13 is a partial cross-sectional view taken along line CC shown in FIG. FIG. 14 is a partial cross-sectional view taken along line DD shown in FIG. FIG. 15 is a partial cross-sectional view showing a state in which the battery 230 is housed in the battery housing portion 27 shown in FIG.

  As shown in FIGS. 6, 7, 9, and 10, on the inner side of the front case 21, a right first direction peripheral wall 211 </ b> B, a connection protrusion 251, a second rib 262, a third rib 263, A fourth rib 264 and a fifth rib 265 are provided. The right first direction peripheral wall 211B, the second rib 262, the third rib 263, the fourth rib 264, and the fifth rib 265 are formed from the resin member 26 of the front case 21. The connection protrusion 251 is formed from the sheet metal member 25 of the front case 21.

  The right first direction peripheral wall 211B constitutes a part of the peripheral wall of the operation unit side body 2, extends along the first direction D1 of the peripheral wall of the front case 21, and is positioned on the right direction D22 side. .

  The connection protrusion 251 is provided in the vicinity of the right first direction peripheral wall 211 </ b> B on the second surface 25 b of the sheet metal member 25. The connection protrusion 251 protrudes from the second surface 25b of the sheet metal member 25 to the rear case 22 side (rear direction D32 side). For example, the connection protrusion 251 is formed at the same time when the sheet metal member 25 is formed by press working, and is formed integrally with other portions of the sheet metal member 25. The connection protrusion 251 is connected to the exposed conductor part 135 of the coaxial cable 100 via the clamp member 150. Accordingly, the connection protrusion 251 is disposed at a position corresponding to the exposed conductor portion 135 (clamp member 150) of the coaxial cable 100.

  The second rib 262 and the third rib 263 protrude from the second surface 25b of the sheet metal member 25 to the rear case 22 side (rear direction D32 side). Specifically, in the sheet metal member 25, the second rib 262 and the third rib 263 are provided at a position where a through hole 252 that penetrates through the first surface 25a and the second surface 25b (the second hole in FIG. A through hole 252 corresponding to the rib 262 is formed), and when the resin member 26 is molded by insert molding, the molten resin flows from the first surface 25a side to the second surface 25b side of the sheet metal member 25. Can be formed.

  The 2nd rib 262 is provided so that the connection projection part 251 may be pinched | interposed between the right 1st direction surrounding walls 211B in the 2nd direction D2. In other words, the connection protrusion 251 is disposed between the right first direction peripheral wall 211B and the second rib 262 in the second direction D2. Therefore, the exposed conductor portion 135 (clamp member 150) of the coaxial cable 100 is disposed between the right first direction peripheral wall 211B and the second rib 262, so that the exposed conductor portion 135 of the coaxial cable 100 is interposed via the clamp member 150. Can be brought into contact with the connection projection 251 to electrically connect the exposed conductor 135 and the sheet metal member 25.

  A plurality of the third ribs 263 are arranged in the vicinity of the right first direction peripheral wall 211B on the second surface 25b of the sheet metal member 25. The third rib 263 is closer to the right first direction peripheral wall 211B than the second rib 262 in the second direction D2. The height of the third rib 263 (the height in the direction toward the coaxial cable 100, the height in the thickness direction D3) is the height of the connection protrusion 251 (the height in the direction toward the clamp member 150 of the coaxial cable 100). And the height in the thickness direction D3). Therefore, as shown in FIGS. 6 and 7, in the second direction D2, the coaxial cable 100 is disposed between the right first direction peripheral wall 211B and the second rib 262 and overlaps the third rib 263. Placed in.

The fourth rib 264 is provided on the inner surface of the right first direction peripheral wall 211B on the left direction D21 side. The fourth rib 264 projects toward the left direction D <b> 21 toward the battery housing portion 27. A plurality of the fourth ribs 264 are provided at a predetermined interval in the first direction D1. As shown in FIG. 7, the two fourth ribs 264A among the plurality of fourth ribs 264 are coaxial cables arranged at predetermined positions inside the operation unit side body 2 in the first direction D1. 100 are arranged so as to sandwich the connection protrusion 251.
Accordingly, the coaxial cable 100 is disposed between the second rib 262 and the right first direction peripheral wall 211B or the fourth rib 264 in the second direction D2.

The fifth rib 265 is provided on the inner surface of the right first direction peripheral wall 211B on the left direction D21 side. The fifth rib 265 projects toward the left direction D <b> 21 toward the battery housing portion 27. The fifth rib 265 is disposed on the opposite side (base end direction D12 side) from the second rib 262 in the first direction D1. The fifth rib 265 is disposed on the rear case 22 side (rear direction D32 side) with respect to the coaxial cable 100 disposed at a predetermined position inside the operation unit side body 2 in the thickness direction D3.
Thereby, the coaxial cable 100 is disposed between the third rib 263 and the fifth rib 265 in the thickness direction D3.

  Thus, the coaxial cable 100 is sandwiched between the second rib 262 and the right first direction peripheral wall 211B or the fourth rib 264 in the second direction D2, and the third rib 263 and the fifth rib 265 in the thickness direction D3. The first connector 161 is connected to the first connection terminal 74 of the main circuit board 70, and the second connector 162 is connected to the second connection terminal 92 of the antenna board 90, so that the coaxial cable is connected. 100 is regulated (maintained) inside the operation unit side body 2 in a state of being close to the right first direction peripheral wall 211B and close to the second surface 25b of the sheet metal member 25.

  Next, the rear case 22 side will be described. As shown in FIGS. 9 and 10, the rear case 22 is provided with a rear-side housing inner wall forming rib group 270 that protrudes from the back surface 2b toward the front surface 2a (that is, toward the front surface direction D31). The rear side housing portion inner wall forming rib group 270 is formed in a substantially rectangular circumferential shape corresponding to the substantially rectangular battery housing portion 27 when viewed in the thickness direction D3. The rear side accommodating portion inner wall forming rib group 270 forms most of the inner wall of the battery accommodating portion 27.

  A part of the rear side accommodating portion inner wall forming rib group 270 constitutes a first rib 221. More specifically, two first ribs 221 are formed on one side extending in the first direction D1 on the right direction D22 side of the rectangular circumferential rear side accommodating portion inner wall forming rib group 220. The two first ribs 221 are spaced apart from each other in the first direction D1 and project toward the coaxial cable 100 (toward the front case 21). In other words, the two first ribs 221 are located on the back side D32 side with respect to the coaxial cable 100 arranged at a predetermined position inside the operation unit side body 2.

  When the two first ribs 221 and the coaxial cable 100 are viewed in the thickness direction D3, the two first ribs 221 have the exposed conductor portion 135 in the first direction D1 (also the longitudinal direction of the coaxial cable 100). Place it on both sides. Since the clamp member 150 is attached to the exposed conductor portion 135, the two first ribs 221 are arranged on both sides of the clamp member 150 in the first direction D1.

  Next, the battery 230 will be described. The battery 230 is attached to the mobile phone 1 and supplies power to the mobile phone 1, and is a secondary battery that functions as a power supply source for electric elements provided in the mobile phone 1.

  As shown in FIG. 11, the battery 230 is electrically connected to a battery cell (not shown), the positive electrode and the negative electrode of the battery cell, and is exposed to the surface of the battery 230, and the positive electrode terminal 231 and the negative electrode terminal. 232 and a discrimination electrode terminal 234 exposed on the surface of the battery 230, and a resin portion 233.

The resin portion 233 is formed to cover the battery cell in a state where the positive electrode terminal 231, the negative electrode terminal 232, and the discrimination electrode terminal 234 are exposed. Examples of the material for forming the resin portion 233 include synthetic resin materials. The resin portion 233 can be formed by low-temperature and low-pressure molding using, for example, a polyamide resin, which is more flexible than a resin such as ABS (acrylonitrile butadiene styrene) resin constituting the front case 21 or the rear case 22. .
In a state where the battery 230 is housed in the battery housing portion 27, the positive electrode terminal 231, the negative electrode terminal 232, and the determination electrode terminal 234 are in contact with the first power supply terminal 72a, the second power supply terminal 72b, and the determination terminal 72d in the terminal block 72, respectively. And become conductive.

  The battery 230 has a substantially rectangular parallelepiped shape. When the battery 230 is housed in the battery housing portion 27 of the operation unit side body 2, the longitudinal direction, the width direction, and the thickness direction thereof are the first direction in the operation unit side body 2. It coincides with D1, the second direction D2, and the thickness direction D3.

The resin portion 233 of the battery 230 includes a mounting direction restricting recess 233A at a position corresponding to the second rib 262 in a state where the battery 230 is accommodated in the battery accommodating portion 27. The mounting direction restricting recess 233A is provided in the vicinity of the end of the battery 230 on the front end direction D11 side and in the vicinity of the end on the right direction D22 side, and is recessed on the left direction D21 side. The mounting direction restricting recess 233 </ b> A is provided to restrict the direction in which the battery 230 is mounted with respect to the battery housing portion 27. That is, the battery 230 can be accommodated in the battery accommodating portion 27 only when the battery 230 is attached to the battery accommodating portion 27 with the second rib 262 and the attachment direction restricting recess 233 </ b> A associated with each other.
6 and 7, the shape of the battery 230 is indicated by a virtual line (two-dot chain line).

  In other words, the second rib 262 of the front case 21 faces the mounting direction restricting recess 233A in the battery 230 accommodated in the battery accommodating portion 27 in the second direction D2. The second rib 262 forms the inner wall of the battery housing portion 27 together with the rear side housing portion inner wall forming rib group 270.

Next, a state where the rear case 22 and the front case 21 are combined will be described.
As shown in FIGS. 12 to 14, in a state where the rear case 22 and the front case 21 are combined, the exposed conductor portion 135 is pressed against the connection projection 251 of the sheet metal member 25 via the clamp member 150. The two first ribs 221 press the coaxial cable 100 in the thickness direction D3 (front surface direction D31).
Further, as shown in FIGS. 14 and 15, in the state where the resin portion 233 of the battery 230 is accommodated in the battery accommodating portion 27, the mounting direction restricting recess 233 </ b> A is particularly crimped to the second rib 262, and the resin portion 233 presses the second rib 262 toward the right first direction peripheral wall 211B.

As described above, in the state in which the rear case 22 and the front case 21 are combined, the coaxial cable 100 has the connection protrusion portion 251, the third rib 263, the fifth rib 265, and the first rib 221 in the thickness direction D3. Is disposed between the rear side accommodating portion inner wall forming rib group 270 and the like. The exposed conductor portion 135 of the coaxial cable 100 is electrically connected to the connection protrusion 251 of the sheet metal member 25 that is the reference potential portion via the clamp member 150.
Further, the coaxial cable 100 is sandwiched between the second rib 262 and the right first direction peripheral wall 211B or the fourth rib 264 in the second direction D2, and the movement in the second direction D2 is restricted.

According to the mobile phone 1 of the present embodiment, the following effects are exhibited.
In the mobile phone 1 of the present embodiment, the first rib 221 provided on the rear case 22 and extending toward the front case 21 is pressed through the clamp member 150 to the sheet metal member 25 whose exposed conductor portion 135 is a reference potential portion. Thus, the coaxial cable 100 is pressed. Therefore, when the front case 21 and the rear case 22 are combined in a state where the coaxial cable 100 is disposed at an appropriate position (for example, a position where the clamp member 150 is opposed to the connection protrusion 251), the first rib 221 clamps the coaxial cable 100. The member 150 is pressed against the sheet metal member 25 (specifically, the connection protrusion 251).

  Therefore, according to the present embodiment, the main antenna 80 and the main circuit board 70 are electrically connected via the inner conductor 110, and the outer conductor 130 and the inside of the operation unit side body 2 are disposed in the middle portion of the coaxial cable 100. In the mobile phone 1 including the coaxial cable 100 that electrically connects the sheet metal member 25 that is the reference potential portion of the mobile phone 1, the coaxial cable 100 is fixed and the outer conductor 130 and the sheet metal member 25 that is the reference potential portion are securely contacted. Can be planned. Therefore, deterioration of the antenna characteristics of the coaxial cable 100 can be suppressed, and the coaxial cable 100 can be efficiently fixed inside the operation unit side body 2.

  Further, in the mobile phone 1 of the present embodiment, two first ribs 221 of the rear case 22 are provided, and the exposed conductor portion 135 (clamp) in the longitudinal direction of the coaxial cable 100 (substantially coincides with the first direction D1). The external insulator 140 is pressed on both sides of the member 150). Therefore, the coaxial cable 100 generates an elastic force that attempts to restore its longitudinal direction to a straight line. Accordingly, an elastic force in a direction in which the clamp member 150 (outer conductor 130) approaches the sheet metal member 25 is likely to be generated in the coaxial cable 100. As a result, the contact pressure between the clamp member 150 (external conductor 130) and the sheet metal member 25 can be improved.

  Further, in the mobile phone 1 according to the present embodiment, the operation unit side body 2 includes the second rib 262 that forms the inner wall of the battery housing unit 27 that houses the battery 230. The exposed conductor 135 of the coaxial cable 100 is disposed between the peripheral wall (the right first direction peripheral wall 211B) of the operation unit side body 2 and the second rib 262. The battery 230 presses the second rib 262 toward the right first direction peripheral wall 211 </ b> B in the state of being accommodated in the battery accommodating portion 27. Therefore, movement of the coaxial cable 100 in the second direction D2 can be restricted. Thereby, the antenna characteristic in the coaxial cable 100 can be improved.

  In addition, it is preferable that there is a clearance (gap) that allows some movement in the second direction D2 between the coaxial cable 100 and the right first direction peripheral wall 211B of the operation unit side body 2. This is because if the movement of the coaxial cable 100 in the second direction D2 is not allowed at all, the contact between the clamp member 150 (exposed conductor portion 135) and the sheet metal member 25 (reference potential portion) tends to be poor.

  Further, in the mobile phone 1 of the present embodiment, the second rib 262 is pressed by the resin portion 233 of the battery 230 formed by low temperature and low pressure molding. Since the resin portion 233 formed by low-temperature and low-pressure molding has a certain degree of flexibility, the second rib 262 can be pressed with an elastic force, and an excessive load is suppressed from being applied to the coaxial cable 100. be able to.

  Further, in the mobile phone 1 of the present embodiment, the coaxial cable 100 is arranged in a region near the periphery of the battery housing portion 27 that is rarely used effectively. Therefore, the space inside the operation unit side body 2 can be effectively utilized.

As mentioned above, although one Embodiment of this invention was described, this invention is not restrict | limited to embodiment mentioned above, It can change suitably.
For example, in the above-described embodiment, the first case is configured from the rear case 22 and the second case is configured from the front case 21, but is not limited thereto, and the first case is configured from the front case 21, The rear case 22 may constitute a second case.

The present invention is not limited to the operation unit side body 2 but can be applied to the display unit side body 3.
You may make it press the exposed conductor part 135 of the coaxial cable 100 directly on the sheet metal member 25 which is a reference electric potential part, without passing through connection members, such as the clamp member 150. FIG.
The reference potential portion is not limited to the sheet metal member 25, and may be composed of other members.
The coaxial cable 100 and the main antenna 80 can be directly connected without using the antenna substrate 90.

The present invention can also be applied to antennas other than the main antenna 80.
The present invention can also be applied to circuit boards other than the main circuit board 70.
A portion connected to the coaxial cable 100 provided on the sheet metal member 25 is not limited to the connection protrusion 251.

  In addition, the portable wireless device of the present invention is not foldable as in the above embodiment, and one casing is slid in one direction from the state in which the operation unit side casing 2 and the display unit side casing 3 are overlapped. It may be a slide-type portable wireless device. In addition, the portable wireless device of the present invention is a rotary type (turn type) in which one casing is rotated around an axis line along the overlapping direction of the operation unit side casing 2 and the display unit side casing 3. It may be a portable electronic device.

  The present invention can be applied to portable wireless devices other than cellular phones. Examples of portable wireless devices other than mobile phones include PHS (registered trademark: Personal Handyphone System), portable game machines, portable navigation devices, PDAs (Personal Digital Assistants), and notebook computers.

1 Mobile phone (mobile wireless device)
2 Operation unit side case (case)
3 Display unit side body 4 Connection unit 21 Front case (second case)
22 Rear case (first case)
25 Sheet metal member (reference potential part)
26 Resin member 27 Battery housing portion 75 Reference potential pattern layer (reference potential line)
70 Main circuit board (circuit board)
80 Main antenna (antenna)
100 Coaxial cable 110 Inner conductor 120 Inner insulator 130 Outer conductor 135 Exposed conductor portion 140 Outer insulator 150 Clamp member (connection member)
211B Right first direction peripheral wall (peripheral wall)
221 First rib 230 Battery 231 Positive terminal 232 Negative terminal 233 Resin portion 262 Second rib

Claims (5)

A first case and a second case are combined to form a housing having a first rib provided on the first case and extending toward the second case;
An antenna,
A circuit board provided inside the housing;
A reference potential portion provided inside the second case;
An internal conductor, an internal insulator that covers the internal conductor, an external conductor that is provided on the outer periphery of the internal insulator, and an external insulator that covers the external conductor are provided inside the housing. An exposed conductor portion is formed from the outer conductor exposed without being covered by the outer insulator, and a coaxial cable that electrically connects the antenna and the circuit board via the inner conductor, and
The first rib is a portable wireless device that presses the coaxial cable so that the exposed conductor is pressed against the reference potential portion directly or via a connecting member made of a conductor.   2. The mobile radio according to claim 1, wherein at least two first ribs of the first case are provided and press the external insulator on both sides of the exposed conductor portion in the longitudinal direction of the coaxial cable. apparatus. The second case is formed by insert molding a sheet metal member into a resin member,
The circuit board includes a reference potential line connected to the sheet metal member,
The portable wireless device according to claim 1, wherein the reference potential unit is made of the sheet metal member. The housing includes a second rib that forms an inner wall of a battery housing portion that houses a battery,
The exposed conductor portion of the coaxial cable is disposed between a peripheral wall of the housing and the second rib,
The portable wireless device according to any one of claims 1 to 3, wherein the battery presses the second rib toward the peripheral wall in a state of being accommodated in the battery accommodating portion.   The battery includes a positive electrode terminal, a negative electrode terminal, and a resin portion formed by low-temperature and low-pressure molding with the positive electrode terminal and the negative electrode terminal exposed, and presses the second rib by the resin portion. The portable radio apparatus according to claim 4.

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