JP2010278604A - Wireless terminal device - Google Patents

Wireless terminal device Download PDF

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Publication number
JP2010278604A
JP2010278604A JP2009127306A JP2009127306A JP2010278604A JP 2010278604 A JP2010278604 A JP 2010278604A JP 2009127306 A JP2009127306 A JP 2009127306A JP 2009127306 A JP2009127306 A JP 2009127306A JP 2010278604 A JP2010278604 A JP 2010278604A
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JP
Japan
Prior art keywords
antenna
housing
member
recess
terminal device
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Granted
Application number
JP2009127306A
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Japanese (ja)
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JP5340035B2 (en
Inventor
Takashi Hasegawa
長谷川  隆
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Kyocera Corp
京セラ株式会社
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Application filed by Kyocera Corp, 京セラ株式会社 filed Critical Kyocera Corp
Priority to JP2009127306A priority Critical patent/JP5340035B2/en
Publication of JP2010278604A publication Critical patent/JP2010278604A/en
Application granted granted Critical
Publication of JP5340035B2 publication Critical patent/JP5340035B2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless terminal device capable of increasing characteristics of an antenna. <P>SOLUTION: The wireless terminal device includes: a casing; a metal member provided inside the casing; a recess formed on the outer surface of the casing corresponding to the metal member and opened toward the outside of the casing; and an antenna member provided inside the recess along the opening of the recess. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wireless terminal device having an antenna.

  In a wireless terminal device having a wireless function such as a mobile phone, an antenna for communicating with other terminals, a base station, or the like is mounted as described in Patent Document 1.

JP 2004-228503 A

  Here, if the antenna member is disposed close to another metal member (substrate) or the like, the characteristics as an antenna are affected, and it is difficult to improve the performance. However, in recent years, since the size of the wireless terminal device has been reduced, the space in which the wireless terminal device can be placed is limited, and it is difficult to place the antenna member and the metal part apart from each other.

  The present invention has been made in view of the above, and an object of the present invention is to provide a wireless terminal device capable of improving the characteristics of an antenna.

  In order to solve the above-described problems and achieve the object, the present invention provides a wireless terminal device, a housing, a metal member provided inside the housing, and the housing corresponding to the metal member. A concave portion formed on the outer surface of the body and opening toward the outside of the casing, and an antenna member provided in the concave portion along the opening of the concave portion.

  Here, the antenna member is preferably made of sheet metal, and the depth of the recess is preferably larger than the thickness of the antenna member.

  Moreover, it is preferable that the said housing | casing is formed with the hole which connects an outer surface and an inner surface in the said recessed part, and the one edge part of the said antenna member passes the said hole and extends to the said inner surface side.

  In addition, the power supply connector is disposed inside the housing and supplies power by contacting the antenna member, and the one end of the antenna member is sandwiched between the power supply connector and the housing. It is preferable.

  Furthermore, it has a cover member which fits the said recessed part and covers the said antenna member, and it is preferable that the thickness of the said cover member is smaller than the thickness of the said housing | casing.

  Further, the housing is configured by combining a first case member and a second case member, and includes a fixing member that fixes the first case member and the second case member, and the cover member Is preferably arranged so as to cover the fixing member.

  INDUSTRIAL APPLICABILITY According to the present invention, in a radio terminal apparatus having an antenna, the antenna characteristics can be obtained more suitably.

FIG. 1 is a front view of the mobile phone according to the present embodiment. FIG. 2 is a side view of the mobile phone according to the present embodiment. FIG. 3A is a perspective view illustrating a schematic configuration of a back cover of the second housing. FIG. 3-2 is an enlarged perspective view of a part of the back cover. FIG. 3-3 is a perspective view showing the back cover from the side opposite to FIG. 3-2. FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a side view showing the relationship between the antenna and the circuit board. FIG. 6 is a perspective view illustrating a schematic configuration of an antenna included in the mobile phone according to the present embodiment. FIG. 7A is a perspective view illustrating a relationship between the back cover and the antenna. FIG. 7-2 is a perspective view showing the relationship between the back cover and the antenna from the side opposite to FIG. 7-1. FIG. 8A is a plan view illustrating a schematic configuration of the back cover and the antenna. 8-2 is a cross-sectional view taken along line BB in FIG. FIG. 9A is an explanatory diagram of an antenna mounting process. FIG. 9B is an explanatory diagram of an antenna mounting process. FIG. 9C is an explanatory diagram of an antenna mounting process. 9-4 is explanatory drawing which shows the mounting process of an antenna. FIG. 10A is a perspective view illustrating a relationship between the power feeding unit and the antenna. FIG. 10B is another perspective view illustrating the relationship between the power feeding unit and the antenna. FIG. 11A is a perspective view illustrating a schematic configuration of a cover. FIG. 11B is a perspective view illustrating a state where the cover is attached to the back cover.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by the following embodiment. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. In the following, a mobile phone will be described as an example of a wireless terminal device, but the present invention can be applied to any wireless terminal device having at least an antenna. Therefore, the present invention can be applied to, for example, a personal handy phone system (PHS), a PDA, a portable navigation device, a notebook computer, a game machine, or the like as long as it has an antenna.

(Embodiment)
The present embodiment is a wireless terminal device having a casing, an antenna, and a circuit board disposed inside the casing. The casing is provided with a concave portion that is convex on the inner side, and the outer surface side of the concave portion is provided. It is characterized by the hand placing the antenna.

  FIG. 1 is a front view of the mobile phone according to the present embodiment. FIG. 2 is a side view of the mobile phone according to the present embodiment. The wireless terminal device according to the present embodiment is a mobile phone having a wireless communication function. In the mobile phone 1 shown in FIGS. 1 and 2, the housing 1 </ b> C is composed of a plurality of housings. Specifically, the housing 1C is configured to be openable and closable by a first housing 1CA and a second housing 1CB. That is, the mobile phone 1 has a foldable housing. The mobile phone 1 is not limited to a foldable casing. For example, the casing of the mobile phone 1 may be a sliding casing that allows one casing and the other casing to slide relative to each other from a state in which both casings are overlapped. It may be a rotary type in which one casing is rotated around an axis line along the alignment direction, or both casings are connected via a biaxial hinge. Further, it may be a straight type casing that is configured by one box and does not deform.

  1st housing | casing 1CA and 2nd housing | casing 1CB are connected by the hinge mechanism 9 which is a connection part. By connecting the first casing 1CA and the second casing 1CB with the hinge mechanism 9, the first casing 1CA and the second casing 1CB rotate together around the hinge mechanism 9 and move away from each other. And it is comprised so that it can rotate in the direction (direction shown by arrow R of FIG. 2) which mutually approaches. When the first casing 1CA and the second casing 1CB are rotated away from each other, the cellular phone 1 is opened, and when the first casing 1CA and the second casing 1CB are rotated toward each other, the cellular phone 1 is opened. Is closed and is in a folded state (a state indicated by a dotted line in FIG. 2).

  The first housing 1CA is provided with a display 2M shown in FIG. 1 as a display unit. The display 2M displays a standby image as a predetermined image when the mobile phone 1 is waiting for reception, or displays a menu image used to assist the operation of the mobile phone 1. In addition, the first housing 1CA is provided with a receiver 6 that emits a voice when the mobile phone 1 is talking. The second casing 1CB is provided with a plurality of operation keys 3 for inputting characters at the time of composing a telephone number, mail, etc., and selecting and determining menus displayed on the display 2M and screens. A direction and determination key 4 for easily executing scrolling and the like is provided. The operation key 3 and the direction / decision key 4 constitute an operation unit of the mobile phone 1. In addition, the second casing 1CB is provided with a microphone 5 that receives voice when the mobile phone 1 is talking.

  An antenna 10 is provided inside the second housing 1CB. The antenna 10 is a transmission / reception antenna used for wireless communication, and is used for transmission / reception of radio waves (electromagnetic waves) related to calls, electronic mails, and the like between the mobile phone 1 and a base station. The antenna 10 is disposed on the hinge mechanism 9 side (near the hinge mechanism 9) of the second housing 1CB. In addition, the second housing 1 </ b> CB includes a main body 30 and a back cover 32 that can be detached from the main body 30. Further, when the back cover 32 is attached to the main body 30, a space is formed between the main body 30 and the back cover 32. That is, a closed space is formed between the main body 30 and the back cover 32. Here, FIG. 3A is a perspective view illustrating a schematic configuration of the back cover of the second housing, and FIG. 3B is an enlarged perspective view illustrating a part of the back cover. 3 is a perspective view showing the back cover from the side opposite to FIG. 3-2. The back cover 32 is formed with a concave portion 34 that is open to the outside (that is, convex toward the main body 30 side) at a portion on the hinge mechanism 9 side of the surface having the largest area. The recess 34 is formed with a screw hole 36 into which a screw for fastening the main body 30 and the back cover 32 is inserted, and a hole 38 communicating with the inside of the second housing 1CB. Further, on the surface having the largest area of the back cover 32, openings and irregularities are further formed corresponding to various functions possessed by the mobile phone 1. For example, an opening for storing a rechargeable battery (battery pack), a hole for a speaker for outputting sound, and an opening for arranging a lens of a camera are formed.

  Hereinafter, the peripheral part of the recessed part 34 of 2nd housing | casing 1CB is demonstrated using FIG.4 and FIG.5. 4 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 5 is a side view showing a relationship between the antenna and the circuit board. As shown in FIG. 4, a cover 18 that closes the recess 34 is provided on the outer surface (surface opposite to the main body 30 side, exposed surface) side of the recess 34. The outer surface of the recess 34 is covered with the cover 18 so that it is not exposed. In addition, as shown in FIG. 4, the antenna 10, the circuit board 12, and the circuit board 12 are disposed in the space inside the second housing 1 </ b> CB and the space formed by the recess 34 and the cover 18. The power feeding unit 14 is disposed. Further, as illustrated in FIG. 5, the antenna 10 is disposed so as to be in contact with the power feeding unit 14, and power is supplied from the power feeding unit 14. Hereinafter, each part will be described in detail.

  Here, FIG. 6 is a perspective view showing a schematic configuration of an antenna provided in the mobile phone according to the present embodiment. FIG. 7-1 is a perspective view showing the relationship between the back cover and the antenna, and FIG. 7-2 is a perspective view showing the relationship between the back cover and the antenna from the side opposite to FIG. 8-1 is a plan view showing a schematic configuration of the back cover and the antenna, and FIG. 8-2 is a cross-sectional view taken along the line BB of FIG. 8-1. As shown in FIG. 6, the antenna 10 is a long and thin plate-like member, and the antenna 10 is configured such that the main part 10 a constituting the majority is disposed on the same plane of the plate-like surface. As shown in FIG. Specifically, the main portion 10a has a shape obtained by connecting two U-shapes, and a portion that becomes a parallel line of one U-shape is longer than a portion that connects parallel lines, In other words, the shape is a vertically long U-shape. In addition, the antenna 10 has a portion that is bent in a direction orthogonal to the surface of the plate-like shape on one end portion 10b side in the longitudinal direction to form a stepped portion 10c. The part 10a has a shape arranged on a different plane from the same plane.

  As shown in FIGS. 5, 7-1, and 7-2, the antenna 10 is disposed in the concave portion 34 of the back cover 32 of the second housing 1 CB, and the main portion 10 a is on the outer surface side of the concave portion 34. The step 10 c is passed through the hole 38, and the end 10 b is disposed in the surface of the concave portion 34 on the main body 30 side, that is, in the space formed by the main body 30 and the back cover 32. Further, as shown in FIGS. 8A and 8B, the antenna 10 is disposed so that the surface of the main portion 10a on the main body 30 side is in contact with the surface of the concave portion 34 opposite to the main body 30 side. The surface of the end portion 10b opposite to the main body 30 side is disposed so as to contact the surface of the concave portion 34 on the main body 30 side. The step 10 c is formed to have a length that is substantially the same as the length of the hole 38 or slightly longer than the length of the hole 38.

  FIGS. 9A to 9D are explanatory diagrams illustrating the antenna mounting process. First, from the state where the antenna 10 and the back cover 32 are separately provided as shown in FIG. 9A, the antenna 10 and the back cover 32 are relatively moved, and as shown in FIG. The end 10 b is moved to a position facing the hole 38 of the recess 34 of the back cover 32. The antenna 10 is on the outer surface (surface opposite to the surface facing the main body 30) of the recess 34. Next, as illustrated in FIG. 9C, the end portion 10 b is inserted into the hole 38. Thereafter, as shown in FIG. 9-4, the angle formed between the surface of the main part 10a and the surface of the back cover 32 is reduced, that is, the surface of the main part 10a and the surface of the back cover 32 are parallel to each other. Then, the antenna 10 and the back cover 32 are relatively moved to bring the main body 10 side surface of the main portion 10 a into contact with the back cover 32. The antenna 10 is mounted in the recess 34 of the back cover 32 in this way.

  Next, the circuit board 12 is disposed between the main body 30 and the back cover 32 as shown in FIGS. 4 and 5. The circuit board 12 is provided with a power feeding unit 14 that supplies power to the antenna 10 on the surface on the back cover 32 side. In addition to the power supply unit 14, a power supply circuit that controls the operation of the power supply unit 14 and various circuits that control the operation of the mobile phone 1 are formed on the circuit board 12. In the present embodiment, only one circuit board 12 is shown, but a plurality of circuit boards 12 may be arranged in the space between the main body 30 and the back cover 32.

  Next, the power feeding unit 14 will be described. Here, FIG. 10-1 is a perspective view illustrating the relationship between the power feeding unit and the antenna, and FIG. 10-2 is another perspective view illustrating the relationship between the power feeding unit and the antenna. The power feeding unit 14 is fixed to the circuit board 12, and the tip (the part opposite to the part fixed to the circuit board 12) is in contact with the end 10 b of the antenna 10. The power feeding unit 14 supplies power to the antenna 10 that is in contact with the power supply unit 14, further sends information received by the antenna 10 to the processing unit of the circuit board 12, and sends the information generated by the processing unit of the circuit board 12 to the antenna 10. send. In addition, the power feeding unit 14 is in contact with the end 10 b and the part that is in contact with the end 10 b of the back cover 32 so as to push away from the main body 30.

  FIG. 11A is a perspective view illustrating a schematic configuration of the cover, and FIG. 11B is a perspective view illustrating a state where the cover is attached to the back cover. As shown in FIGS. 11-1 and 11-2, the cover 18 is a plate-like member having a size covering the entire surface of the recess 34, and is attached to the back cover 32 as shown in FIG. 10-2. The antenna 10 and the screw hole 36 can be hidden from view from the outside. The method of attaching the cover 18 to the back cover 32 is not particularly limited. For example, the cover 18 may be provided with a protrusion, the back cover 32 may be provided with a hole for inserting the protrusion, and the protrusion may be inserted into the hole. The back cover 32 and the cover 18 may be attached by bonding with an adhesive. The mobile phone 1 is configured as described above.

  Like the mobile phone 1, the antenna 10 is provided on the outer surface of the second casing 1CB, and the second casing 1CB is disposed between the antenna 10 and the circuit board 12, whereby the antenna 10 and the circuit board are arranged. The distance to 12 can be further increased. Thereby, the characteristic of an antenna can be made high. Moreover, the antenna 10 can be supported by the second casing 1CB by being disposed along the outer surface of the second casing 1CB, and the antenna 10 can be thinned. Thereby, a mobile telephone can be reduced in size.

  Moreover, by providing on the outer surface of the housing, it can be created more easily than providing between the housings (embedding in the housing). Thereby, metal mold | die cost can be reduced and it can manufacture at low cost. In addition, the degree of freedom in shape can be increased. In addition, by providing on the outer surface of the housing, the inner surface of the housing, that is, the space-side surface formed by the main body and the back cover can be used effectively. As an example, the strength of the housing can be improved by a structure that reinforces the strength of the housing.

  Further, by providing the cover 18 so that the antenna 10 is not exposed, the antenna 10 can be protected without providing a member for protecting the antenna 10 on the outer periphery of the antenna 10. Thereby, possibility that the antenna 10 will be damaged can be reduced. Moreover, the antenna can be hidden without increasing the number of components by covering the antenna 10 with the cover that hides the screw hole 36 of the screw that holds the head 30 and the back cover 32. Note that the thickness of the cover 18 is smaller than the thickness of the recess 34. Thereby, the antenna 10 can be appropriately disposed between the cover 18 and the recess 34.

  Further, the antenna 10 passes through the hole 38, and one end portion 10b is arranged in a space sandwiched between the back cover 32 and the main body portion 30. Can be easily connected.

  Further, the end portion 10b of the antenna 10 is disposed on the surface of the back cover 32 on the main body 30 side, and the feeding portion 14 is brought into contact with the end portion 10b while applying a force pressing the end portion 10b of the antenna 10 against the back cover 32. In other words, the end portion 10b of the antenna 10 is sandwiched between the back cover 32 and the power feeding unit 14, so that the power feeding unit 14 and the antenna 10 can be prevented from being separated from each other. Can be maintained. In addition, since the back cover 32 can receive a force acting on the antenna 10, the antenna 10 can be prevented from being deformed by a force acting on the power feeding unit 14. Thereby, the rigidity of the antenna 10 can be lowered, and the antenna 10 can be made thinner and inexpensive.

  In addition, since the outer peripheral surface of the housing can be made more flush, it is preferable to provide a recess in the housing and arrange the antenna in the recess as in this embodiment, but the present invention is not limited to this. Alternatively, the antenna may be arranged on the outer surface of the flat casing without providing the recess. In this case, when a cover is provided, a box-shaped cover whose contact surface with the housing is released may be provided.

  In the case where the recess is provided, the depth of the recess is preferably larger than the thickness of the antenna. As a result, the antenna can be appropriately disposed in the recess, and the antenna can be prevented from protruding beyond the recess.

  In the above embodiment, the antenna separately manufactured by sheet metal or cutting is attached to the casing. However, the present invention is not limited to this, and the antenna is plated or vapor-deposited (semiconductor process). You may produce on the surface.

  In the present embodiment, only the antenna used for communication with the base station is arranged. However, the present invention is not limited to this, and a plurality of types of antennas may be arranged. Specifically, in addition to the antenna used for communication with the base station, a receiving antenna used for receiving radio waves (electromagnetic waves) transmitted from GPS satellites and a receiving antenna for TV broadcasting or the like may be provided. In the case of providing a plurality of antennas in this way, by adopting the configuration of the present invention, each antenna can be separated from the substrate by a certain distance, the characteristics of each antenna can be further improved, and reception and communication can be further improved. It becomes possible to carry out suitably. In the case where a plurality of antennas are provided, it is preferable that the antennas be arranged so that the distance between the antennas is constant. For example, when two antennas are provided, it is preferable to dispose each antenna at both ends of the housing. Specifically, when one antenna is arranged on the hinge side of the housing as in the above embodiment, the other antenna is preferably provided on the opposite side of the housing from the hinge side. Thus, by arranging the antennas apart from each other, interference generated between the antennas can be suppressed, and the characteristics of the antenna can be further improved.

  As described above, the wireless terminal device according to the present invention is useful for a wireless terminal device having an antenna.

DESCRIPTION OF SYMBOLS 1 ... Mobile telephone, 1C ... Housing | casing, 1CA ... 1st housing | casing, 1CB ... 2nd housing | casing, 2M ... Display, 3 ... Operation key, 4 ... Direction and determination key, 5 ... Microphone, 6 ... Receiver, 9 ... Hinge mechanism 10 ... antenna, 12 ... circuit board, 14 ... feeding part, 18 ... cover, 30 ... main body, 32 ... back cover, 34 ... recess, 36 ... screw hole, 38 ... hole

Claims (6)

  1. A housing,
    A metal member provided inside the housing;
    A recess formed on the outer surface of the housing corresponding to the metal member and opening toward the outside of the housing;
    An antenna member provided in the recess along the opening of the recess.
  2. The antenna member is made of sheet metal,
    The wireless terminal device according to claim 1, wherein a depth of the recess is greater than a thickness of the antenna member.
  3. The housing is formed with a hole connecting the outer surface and the inner surface in the recess,
    The wireless terminal device according to claim 1, wherein one end portion of the antenna member extends through the hole to the inner surface side.
  4. A power supply connector that is disposed inside the housing and supplies power in contact with the antenna member;
    The wireless terminal device according to claim 3, wherein the one end portion of the antenna member is sandwiched between the power supply connector and the housing.
  5. Furthermore, it has a cover member that fits into the recess and covers the antenna member,
    The wireless terminal device according to claim 1, wherein a thickness of the cover member is smaller than a thickness of the housing.
  6. The housing is configured by combining a first case member and a second case member,
    A fixing member for fixing the first case member and the second case member;
    The wireless terminal device according to claim 5, wherein the cover member is disposed so as to cover the fixing member.
JP2009127306A 2009-05-27 2009-05-27 Wireless terminal device Active JP5340035B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009127306A JP5340035B2 (en) 2009-05-27 2009-05-27 Wireless terminal device

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JP2010278604A true JP2010278604A (en) 2010-12-09
JP5340035B2 JP5340035B2 (en) 2013-11-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017527251A (en) * 2014-09-05 2017-09-14 クアルコム,インコーポレイテッド Wireless charging of electronic devices with metal back

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000209014A (en) * 1999-01-14 2000-07-28 Nec Saitama Ltd Antenna attachment structure for portable communication unit
JP2004356823A (en) * 2003-05-28 2004-12-16 Nec Corp Mobile terminal
JP2007288322A (en) * 2006-04-13 2007-11-01 Toshiba Corp Panel structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000209014A (en) * 1999-01-14 2000-07-28 Nec Saitama Ltd Antenna attachment structure for portable communication unit
JP2004356823A (en) * 2003-05-28 2004-12-16 Nec Corp Mobile terminal
JP2007288322A (en) * 2006-04-13 2007-11-01 Toshiba Corp Panel structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017527251A (en) * 2014-09-05 2017-09-14 クアルコム,インコーポレイテッド Wireless charging of electronic devices with metal back
US9871384B2 (en) 2014-09-05 2018-01-16 Qualcomm Incorporated Wireless charging of metal backed electronic devices

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Publication number Publication date
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