JP5082146B2 - ANTENNA DEVICE AND CARD TYPE ELECTRONIC DEVICE - Google Patents

Description

  The present invention relates to an antenna device suitable for mounting on a card type electronic device such as a PC card type or a CF card type.

  A card-type electronic device such as a PC card type or a CF card type is a kind of peripheral equipment of information processing equipment such as a notebook personal computer, a PDA (Personal Digital Assistant), a portable POS (Point Of Sale) terminal, and the like. It is used by being inserted into a card slot provided as an external interface in the processing equipment.

  Some card-type electronic devices perform at least one of transmission and reception of radio waves. Specifically, for example, a cellular phone for data communication, a Bluetooth (trademark or registered trademark) adapter, a wireless LAN (Local Area Network) adapter, a one-segment receiver, a GPS (Global Positioning System) receiver, a digital radio receiver, a satellite A radio receiver or the like. In this type of card-type electronic device, an antenna device that can rotate the antenna element in one or two axes in order to achieve good transmission and reception may be used as the antenna.

  Referring to FIGS. 1A to 1C and FIG. 2, an example of this type of antenna device includes a metal antenna element 632 supported so as to be rotatable in two axial directions. And a metal stud 612 that is electrically connected to an electronic circuit of a card-type electronic device (not shown) that forms at least one of the above and an annular recess 612b formed on the peripheral surface of the stud 612, and the antenna element 632 And a pair of metal plates 621 to be supported. In FIG. 1C, the pair of metal plates 621 are shown to be self-supporting, but in reality, a joint guide 622 to be described later is sandwiched and sandwiched by the element holder 631, and further, a metal pin 623 is sandwiched between them. Is positioned with respect to the annular recess 612b of the stud 612.

  The stud 612 is included in the fixed node 610, and the fixed node 610 also includes a resin base 611 that supports the stud 612. The base 611 is screwed to a card type casing (not shown) of the card type electronic device.

  The pair of metal plates 621 are included in a first rotation node 620 that rotates around a first rotation axis that is the central axis of the stud 612 (in the direction of arrow C1). The first rotation node 620 also includes a resin joint guide 622 and a metal pin 623 press-fitted into the joint guide 622 so as to extend in the opposing direction of the pair of metal plates 621.

  The antenna element 632 is included in a second rotation node 630 that rotates around a second rotation axis (in the direction of arrow C <b> 2) that is the central axis of the metal pin 623. Each of the second rotating nodes 630 includes a resin element holder 631 and an element cover 633.

  Reference numeral 640 in the drawing denotes an O-ring for preventing dust and moisture from entering the card-type casing of the card-type electronic device through the antenna device.

  The antenna element 632 is supported by the fixed node 610 so as to be rotatable in two axial directions. Since the base 611 of the fixed node 610 is fixed to the card-type housing of the card-type electronic device, it can be said that the antenna element 632 is supported by the card-type housing so as to be rotatable in two axial directions.

  The pair of metal plates 621 are electrically connected to the stud 612 by always contacting the annular recess 612b of the stud 612, and the antenna element 632 is always contacted to the pair of metal plates 621. Since the antenna element 632 is electrically connected to the metal plate 621, the antenna element 632 is always electrically connected to the electronic circuit of the card-type electronic device, while being rotatable in the biaxial direction.

  This type of antenna device is disclosed in, for example, Patent Document 1 in addition to the structure shown in FIG.

JP 2002-329182 A

  In the antenna device shown in FIG. 1, the second rotating node 630 (the element cover 633 including the antenna element 632) is long, and therefore, when stress is applied to the indirect portion, the indirect portion has a large size due to the principle of the lever. It takes stress. For this reason, the pair of metal plates 621 may be detached from the annular groove 612 b of the stud 612, and the first rotating node 620 and the second rotating node 630 may fall off the fixed node 610.

  Therefore, an object of the present invention is to provide an antenna device that has excellent strength and does not easily come off even when stress is applied.

  Another object of the present invention is to provide a card-type electronic apparatus having such an antenna device.

  According to the present invention, there is provided an antenna device having an antenna element that is rotatably supported, the stud being electrically connected to an electronic circuit that constitutes at least one of radio wave transmission and reception, and formed on a peripheral surface of the stud. An antenna device having a pair of metal plates facing each other with an annular recess and supporting the antenna element, and having a U-shaped cross section composed of a base part and a pair of projecting side parts protruding from both ends of the base part. An antenna device characterized by having a U-shaped metal fitting in which the stud is inserted into the base side portion and a portion of the pair of metal plates corresponding to the annular recess is sandwiched by the pair of protruding side portions. can get.

  The antenna device includes a stationary joint including the stud, a first rotational joint that includes the pair of metal plates and rotates around a first rotational axis that is a central axis of the stud, and the antenna element. The antenna element is supported by the fixed node so as to be rotatable in two axial directions. The second rotating node rotates around a second rotating shaft extending in the opposing direction of the pair of metal plates. It may be done.

  The pair of metal plates are electrically connected to the stud by always abutting the annular recess of the stud, and the antenna element is always abutted against the pair of metal plates. It may be electrically connected to the plate.

  According to the present invention, there is obtained a card-type electronic apparatus comprising the antenna device, the electronic circuit, and a card-type housing that houses the electronic circuit and mounts the antenna device. .

  The antenna device according to the present invention has excellent strength, and the antenna element is not easily detached even when stress is applied.

  The antenna device according to the present invention has a U-shaped cross section composed of a base part and a pair of projecting side parts projecting from both ends of the base part. The metal plate has a U-shaped metal fitting for clamping a portion corresponding to the annular recess of the stud.

  With such a configuration, a portion corresponding to the annular recess of the stud of the pair of metal plates is restricted by the U-shaped metal fitting, so that it does not open. That is, the antenna device according to the present invention has excellent strength, and the antenna element is not easily detached even when stress is applied.

  Hereinafter, a more specific embodiment of an antenna device according to the present invention will be described in detail with reference to the drawings.

  3 (a) to 3 (c) and FIG. 4, the antenna device according to the embodiment of the present invention includes a metal antenna element 32 supported so as to be rotatable in two axial directions. The antenna element 32 is opposed to a metal stud 12 electrically connected to an electronic circuit of a card-type electronic device (not shown) that performs at least one of transmission and reception with an annular recess 12b formed on the peripheral surface of the stud 12 interposed therebetween. And a pair of metal plates 21 for supporting. In FIG. 3C, the pair of metal plates 21 are shown to be self-supporting, but in reality, a joint guide 22 described later is sandwiched between the element holders 31 and the metal pins 23 are further sandwiched between them. Is positioned with respect to the annular recess 2 b of the stud 12.

  The stud 12 is included in the fixed joint 10, and the fixed joint 10 also includes a resin base 11 that supports the stud 12. The base 11 is screwed to a card type casing (not shown) of the card type electronic device.

  The pair of metal plates 21 is included in a first rotation node 20 that rotates around a first rotation axis that is the central axis of the stud 12 (in the direction of arrow C1). The first turning node 20 also includes a resin joint guide 22 and a metal pin 23 press-fitted into the joint guide 22 so as to extend in the opposing direction of the pair of metal plates 21.

  The antenna element 32 is included in a second rotation node 30 that rotates around a second rotation axis that is the central axis of the metal pin 23 (in the direction of arrow C <b> 2). The second turning node 30 also includes an element holder 31 and an element cover 33 made of resin.

  Reference numeral 40 in the drawing is an O-ring for preventing dust and moisture from entering the card-type casing of the card-type electronic device through the antenna device.

  The antenna element 32 is supported by the fixed node 10 so as to be rotatable in two axial directions. Since the base 11 of the fixed node 10 is fixed to the card-type housing of the card-type electronic device, it can be said that the antenna element 32 is supported by the card-type housing so as to be rotatable in two axial directions.

  The pair of metal plates 21 are always electrically connected to the stud 12 by abutting against the annular recess 12b of the stud 12, and the inner side surface of the base metal plate portion of the antenna element 32 is the pair of metal plates. Since the antenna element 32 is electrically connected to the pair of metal plates 21 by always abutting on the outer plate surface of the antenna 21, the antenna element 32 is always capable of rotating in the biaxial direction, but is always electronic of the card-type electronic device. It is electrically connected to the circuit.

  In particular, the antenna device includes a U-shaped bracket 24 as a component of the second rotating node 20. The U-shaped bracket 24 has a U-shaped cross section composed of a base side 24a and a pair of projecting side parts 24b projecting from both ends of the base side part 24a, and the stud 12 is inserted through the base side part 24a. The protruding side portion 24b of the pair has a U-shaped bracket 24 that sandwiches a portion of the pair of metal plates 21 corresponding to the annular recess 12b of the stud 12.

  With such a configuration, the portion corresponding to the annular recess 12b of the stud 12 of the pair of metal plates 21 is restricted by the U-shaped metal fitting 24 and thus does not open. That is, the antenna device according to the present invention has excellent strength, and even if the second rotary node 30 or the like is stressed, the second rotary node 30 including the antenna element 32 and the first rotary node 20 are fixed nodes. 10 is not easily removed.

  Needless to say, the present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the present invention.

It is a figure which shows the antenna apparatus by the related technique of this invention, (a) is a perspective view, (b) is sectional drawing, (c) is a perspective view of the principal part. FIG. 2 is an exploded perspective view of the antenna device shown in FIG. 1. It is a figure which shows the antenna apparatus by the Example of this invention, (a) is a perspective view, (b) is sectional drawing, (c) is a perspective view of the principal part. FIG. 4 is an exploded perspective view of the antenna device shown in FIG. 3.

Explanation of symbols

10, 610 Fixed node 11, 611 Base 12, 612 Stud 12b, 612b Annular recess 20, 620 First rotating node 21, 621 Metal plate 22, 622 Joint guide 23, 623 Metal pin 24 U-shaped bracket 24a Base 24b Protruding side 30, 630 Second rotating node 31, 631 Element holder 32, 632 Antenna element 33, 633 Element cover 40, 640 O-ring

Claims (4)

An antenna device having an antenna element that is rotatably supported, and is opposed to a stud that is electrically connected to an electronic circuit that forms at least one of radio wave transmission and reception, and an annular recess formed on the peripheral surface of the stud. And an antenna device having a pair of metal plates supporting the antenna element,
It has a U-shaped cross section consisting of a base part and a pair of projecting side parts projecting from both ends of the base part, and the stud is inserted into the base part and the pair of metal plates is formed by the pair of projecting side parts. An antenna device comprising: a U-shaped metal fitting that sandwiches a portion corresponding to the annular recess. A fixed joint including the stud;
A first rotation node that includes the pair of metal plates and rotates around a first rotation axis that is a central axis of the stud;
A second rotating node that includes the antenna element and rotates around a second rotating shaft that extends in the opposing direction of the pair of metal plates;
The antenna device according to claim 1, wherein the antenna element is supported by the fixed joint so as to be rotatable in two axial directions. The pair of metal plates is electrically connected to the stud by always abutting the annular recess of the stud;
The antenna device according to claim 1, wherein the antenna element is electrically connected to the pair of metal plates by always contacting the pair of metal plates.   A card-type electronic device comprising: the antenna device according to claim 1; the electronic circuit; and a card-type housing that houses the electronic circuit and has the antenna device mounted thereon. machine.

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