JP2008099024A - Mobile wireless apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To feed power by connecting an antenna element provided on an exterior member of a mobile wireless apparatus with a radio circuit incorporated in a case without pulling the antenna element around on an outside or inside surface of the case. <P>SOLUTION: An exterior member 30 comprising an antenna element inside is attached to a second case 20 of the mobile wireless apparatus. On a substrate 22 incorporated in the second case 20, a radio circuit 23 and a spring contact 24 connected thereto are provided. The spring contact 24 is passed through an insert hole 21 provided on the second case 20 and press-contacted to a feeding terminal 33 that is one terminal of the antenna element provided inside the exterior member 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable radio apparatus, and more particularly, to a portable radio apparatus configured such that an exterior member can be attached to the outside of a casing.

  In many cases, antennas of portable wireless devices typified by mobile phones are built in housings from the viewpoint of design and ease of handling. On the other hand, multi-functionality of portable wireless devices and miniaturization and thinning of housings are being promoted. Under these circumstances, it is becoming difficult to secure a mounting space for the built-in antenna of the portable wireless device.

  One solution is to form an antenna element by plating or vapor-depositing a conductor pattern on the inner surface or outer surface of a housing (envelope). However, the inner surface of the housing is often provided with ribs and irregularities required for assembly and has a complicated shape, so that it is generally difficult to form an antenna element so as to obtain an appropriate radiation pattern. The outer surface of the housing needs to be surface-treated to protect the conductor pattern, and the feeding end side of the antenna element must go around the inner surface of the housing through the edge portion of the member constituting the housing. Therefore, there is still a problem that it is difficult to appropriately form the antenna element.

On the other hand, along with the miniaturization and thinning of the casing of portable wireless devices, a problem has been pointed out that the built-in antenna and the circuit board and metal parts inside the casing come close to each other and the antenna performance deteriorates. On the other hand, a technique is known in which an antenna element or a parasitic element is provided on a panel attached to the outside of a casing of a portable wireless device to prevent deterioration of antenna performance (for example, see Patent Document 1). The technique disclosed in the above-mentioned patent document 1 is provided with an antenna element or a parasitic element on a panel prepared so that a user can select from the viewpoint of design and the like and can be attached to or detached from the casing of the portable wireless device. It is intended to reduce loss and ensure gain.
JP 2006-191437 A (2nd, 3rd, 7th pages, FIG. 7)

  When an antenna element provided as a conductor pattern, for example, on an exterior member such as a panel is used, there is a problem with the connection method between the radio circuit built in the housing and the antenna element. As described above, there is a difficulty in a method in which the feeding end side of the antenna element is passed around the inner surface of the casing through the edge portion of the member constituting the casing. The above Patent Document 1 does not disclose such a connection method between a radio circuit and an antenna element.

  The present invention has been made to solve the above-described problem. An antenna element provided on an exterior member of a portable wireless device includes a wireless circuit built in the housing without routing the outer or inner surface of the housing. The purpose is to connect and supply power.

  In order to achieve the above object, a portable wireless device of the present invention includes a housing with a built-in wireless circuit and provided with an insertion hole, and a surface attached to the outside of the housing and facing the housing. An exterior member provided with an antenna element, and a connection member provided so that the radio circuit and the antenna element are connected through the insertion hole are provided.

  According to the present invention, the antenna element provided on the exterior member of the portable wireless device can be connected to the wireless circuit built in the casing without being routed around the outer surface or the inner surface of the casing and can be supplied with power.

  Embodiments of the present invention will be described below with reference to the drawings.

  Embodiment 1 of the present invention will be described below with reference to FIGS. FIG. 1 is an external view of a portable wireless device 1 according to a first embodiment of the present invention. The mobile wireless device 1 is configured by connecting a first housing 10 and a second housing 20 so as to be openable and closable, and an exterior member 30 is attached to the outside of the second housing 20 (the direction of attachment is a block arrow) It is expressed by.) FIG. 1 is a diagram showing the mobile wireless device 1 as viewed from the back side (the side opposite to the side facing the user when used for a call).

  The first casing 10 and the second casing 20 may have any opening / closing structure including a folding type, a biaxial hinge (turnover) type, and a sliding type. The exterior member 30 is, for example, a plastic panel, but may be of any shape and material as long as it can be attached to the second housing 20. The exterior member 30 is attached to the outside of the second housing 20 by a method such as double-sided tape or welding. An insertion hole 21 is formed in the lower part on the back side of the second housing 20. The second housing 20 contains a wireless circuit (not shown).

  FIG. 2 is an external view of the exterior member 30 and is a view seen from the second housing 20 side in FIG. An antenna element 31 made of a plated or vapor-deposited conductor pattern is provided inside the exterior member 30 (side attached to the second housing 20). One end of the antenna element 31 is a feeding end 33, and is positioned corresponding to the insertion hole 21 when the exterior member 30 is attached to the second housing 20. The antenna element 31 can take various line lengths or shapes, not limited to those shown in FIG. 2, depending on the frequency used or the type of antenna employed.

  FIG. 3 is a diagram illustrating the configuration of the second housing 20 in a cross section including the insertion hole 21. The configurations denoted by reference numerals 20, 21, 30, and 33 in the figure are equal to the configurations denoted by the same reference numerals in FIG. A wireless circuit 23 is mounted on a substrate 22 built in the second housing 20. The radio circuit 23 is connected to a spring contact 24 that is a connection member provided at a position corresponding to the insertion hole 21 on the substrate 22.

  The spring contact 24 passes through the insertion hole 21 and is pressed into contact with the power supply end 33 provided inside the exterior member 30 by an elastic force acting upward in the drawing. As a result, the antenna element 31 shown in FIG. 2 is electrically connected to the radio circuit 23 at the feeding end 33 and is fed. Since there is no need to connect the conductor pattern of the antenna element 31 to the inner surface of the second housing 20 and then connect to the radio circuit 23, the shape of the antenna element can be freely selected to improve performance. It is.

  It is also possible to remove the exterior member 30 from the second housing 20 and replace it. In that case, the specifications of the antenna can be changed for each exterior member, so that the mobile radio device 1 can be adapted to multiple functions.

  According to the first embodiment of the present invention, the feeding end of the antenna element provided on the inner side of the exterior member is aligned with the position of the insertion hole provided in the housing, and the spring contact provided in the built-in substrate is passed through the insertion hole on the substrate. By connecting the radio circuit and the antenna element, power can be reliably supplied to the antenna element.

  Hereinafter, Embodiment 2 of the present invention will be described with reference to FIGS. FIG. 4 is an external view of the portable wireless device 2 according to the second embodiment of the present invention. The portable wireless device 2 is configured by connecting a first housing 40 and a second housing 50 so as to be openable and closable, and an exterior member 60 is attached to the outside of the second housing 50 (the direction of attachment is indicated by a block arrow). It is expressed by.) FIG. 4 is a diagram showing the mobile wireless device 2 as viewed from the back side (the side opposite to the side facing the user when used for a call).

  The first casing 40 and the second casing 50 may have any opening / closing structure including a folding type, a biaxial hinge (turnover) type, and a sliding type. The exterior member 60 is, for example, a plastic panel, but may be of any shape and material as long as it can be attached to the second housing 50. The exterior member 60 is attached to the outside of the second housing 50 by a method such as double-sided tape or welding. An insertion hole 51 is formed in the lower part on the back side of the second housing 50. The second housing 50 includes a wireless circuit (not shown).

  FIG. 5 is an external view of the exterior member 60 and is a view as seen from the second housing 50 side in FIG. An antenna element 61 made of a plated or vapor-deposited conductor pattern is provided inside the exterior member 60 (the side attached to the second housing 50). Ribs 62 that are protrusions are formed at positions corresponding to the insertion holes 51 when the exterior member 60 is attached to the second housing 50 within the inner surface of the exterior member 60. The antenna element 61 is extended on the surface of the rib 62, and a feeding end 63 that is one end of the antenna element 61 is provided on the upper surface of the rib 62 in the drawing.

  FIG. 6 is a diagram illustrating the configuration of the second housing 50 in a cross section including the insertion hole 51. The configurations denoted by reference numerals 50, 51, 60, 62, and 63 in the figure are the same as the configurations denoted by the same reference numerals in FIG. 4 or FIG. A wireless circuit 53 is mounted on a substrate 52 built in the second housing 50. The radio circuit 53 is connected to a spring contact 54 that is a connection member provided at a position corresponding to the insertion hole 51 on the substrate 52.

  The rib 62 is passed through the insertion hole 51, and the spring contact 54 is pressed into contact with a power supply end 63 provided on the surface of the rib 62 by an elastic force acting to the left in the drawing. As a result, the antenna element 61 shown in FIG. 5 is electrically connected to the wireless circuit 53 at the feeding end 63 and is fed. The advantage that the conductor pattern of the antenna element 61 does not have to be connected to the radio circuit 53 after the conductor pattern of the second casing 50 is wrapped around is the same as that of the first embodiment.

  Further, in the case of the first embodiment (FIG. 3), the contact between the spring contact 24 and the power feeding end 33 may be weakened when an external force is applied in the direction of peeling the exterior member 30 from the second housing 20. In the case of FIG. 6, even when an external force is applied to peel the exterior member 60 from the second housing 50, the contact between the spring contact 54 and the feeding end 63 is not weakened, and feeding to the antenna element 61 is stable. Maintained.

  It is also possible to remove the exterior member 60 from the second housing 50 and replace it. In that case, the specifications of the antenna can be changed for each exterior member, so that the mobile wireless device 2 can be adapted to multiple functions.

  According to the second embodiment of the present invention, there is an additional effect that the power feeding to the antenna element is stably maintained even when an external force in the direction of peeling the exterior member from the casing is applied. Note that the case configuration of the mobile wireless device described in the above embodiment, the shape and arrangement of each part, etc. are merely examples, and various modifications (for example, two cases connected together) without departing from the scope of the present invention. Different housing configurations, connecting members other than spring contacts that ensure contact with the power feed end, exterior members provided with a plurality of antenna elements, etc.) are possible.

1 is an external view of a portable wireless device according to a first embodiment of the present invention. 1 is an external view of an exterior member according to Embodiment 1. FIG. 1 is a cross-sectional view of a portable wireless device according to a first embodiment. FIG. 6 is an external view of a portable wireless device according to a second embodiment of the present invention. 6 is an external view of an exterior member according to Embodiment 2. FIG. Sectional drawing of the portable radio | wireless apparatus which concerns on Example 2. FIG.

Explanation of symbols

1, 2 Portable wireless device 10, 40 First housing 20, 50 Second housing 21, 51 Insertion hole 22, 52 Substrate 23, 53 Wireless circuit 24, 54 Spring contact 30, 60 Exterior member 31, 61 Antenna element 33 63 Feeding end 62 Rib

Claims (6)

A housing with a built-in wireless circuit and an insertion hole;
An exterior member that is attached to the outside of the housing and has an antenna element on the surface facing the housing;
A portable radio apparatus comprising: a connection member provided so that the radio circuit and the antenna element are connected through the insertion hole.   2. The connection member is provided through the insertion hole, and provided so that the antenna element is connected to the wireless circuit on a surface of the exterior member facing the housing. The portable wireless device described in 1.   The portable wireless device according to claim 2, wherein the connection member includes an elastic body in which an elastic force acts on a surface of the exterior member facing the housing.   The exterior member has a protrusion provided so as to pass the insertion hole from a surface facing the housing, and the antenna element extends to the surface of the protrusion, and the connection member 2. The portable radio apparatus according to claim 1, wherein the antenna element is provided so as to be connected to the radio circuit on a surface of the protrusion.   The said connection member is provided with the elastic body with which an elastic force acts with respect to the surface of the said protrusion provided in the surface by the side of the said exterior member which faces the said housing | casing. Portable wireless device.   The portable wireless device according to claim 1, wherein the exterior member is configured to be able to be removed and replaced from the housing.

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