JP2006115048A - Slide type communication terminal equipment - Google Patents
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Abstract
Description
本発明は、ケーシングに高周波回路を内蔵した携帯電話機等の通信端末機に関するものである。 The present invention relates to a communication terminal such as a mobile phone having a high-frequency circuit incorporated in a casing.
従来、図1及び図2に示す如きスライド式携帯電話機が知られている。該スライド式携帯電話機においては、第1筐体(1)と第2筐体(2)が互いにスライド可能に係合し、第1筐体(1)の表面に複数の操作キー(11)が配備されると共に、第2筐体(2)の表面にディスプレイ(20)が配備され、第1筐体(1)に突設したアンテナ(10)によって送受信が可能となっている(特許文献1参照)。 Conventionally, a sliding mobile phone as shown in FIGS. 1 and 2 is known. In the slide type mobile phone, the first casing (1) and the second casing (2) are slidably engaged with each other, and a plurality of operation keys (11) are provided on the surface of the first casing (1). At the same time, a display (20) is provided on the surface of the second casing (2), and transmission and reception are possible by an antenna (10) protruding from the first casing (1) (Patent Document 1). reference).
この様なスライド式携帯電話機においては、図5(a)(b)に示す如く、第1筐体(1)に回路基板(3)が内蔵されると共に、第2筐体(2)に回路基板(4)が内蔵され、両回路基板(3)(4)がフレキシブルリードシート(5)によって互いに連結されている。
即ち、第1筐体(1)内の回路基板(3)上に設置されたコネクター(31)と第2筐体(2)内の回路基板(4)上に設置されたコネクター(41)に対し、U字状に屈曲するフレキシブルリードシート(5)の両端部に設けられた端子部(51)(52)が連結されている。
In such a slide-type mobile phone, as shown in FIGS. 5A and 5B, a circuit board (3) is built in the first casing (1) and a circuit is provided in the second casing (2). A board (4) is built in, and both circuit boards (3) and (4) are connected to each other by a flexible lead sheet (5).
That is, the connector (31) installed on the circuit board (3) in the first casing (1) and the connector (41) installed on the circuit board (4) in the second casing (2). On the other hand, terminal portions (51) and (52) provided at both ends of the flexible lead sheet (5) bent in a U-shape are connected.
又、回路基板(3)上には、高周波回路(図示省略)を内蔵したシールドシャーシ(6)が設置されている。シールドシャーシ(6)は、例えば合成樹脂製のケースに導電性の塗料を塗布したものである。 A shield chassis (6) incorporating a high-frequency circuit (not shown) is installed on the circuit board (3). The shield chassis (6) is obtained by, for example, applying a conductive paint to a synthetic resin case.
フレキシブルリードシート(5)は、第1筐体(1)内の回路基板(3)上のコネクター(31)に接続された端子部(51)からシールドシャーシ(6)の表面に沿って水平に伸び、U字状に屈曲しつつ第1筐体(1)に開設された窓(12)を通過し、180度折り返された後、第2筐体(2)のガイド面(22)に沿って水平に伸び、その先端に設けられた端子部(52)が、第2筐体(2)内の回路基板(4)上のコネクター(41)に接続されている。
第1筐体(1)に対して第2筐体(2)がスライドすると、フレキシブルリードシート(5)のU字状屈曲部の位置がシールドシャーシ(6)の表面に沿って移動し、スライドが許容される。
The flexible lead sheet (5) extends horizontally from the terminal part (51) connected to the connector (31) on the circuit board (3) in the first housing (1) along the surface of the shield chassis (6). It passes along the guide surface (22) of the second housing (2) after passing through the window (12) established in the first housing (1) while being bent into a U-shape and folded back 180 degrees. The terminal portion (52) provided at the front end of the second housing (2) is connected to the connector (41) on the circuit board (4) in the second housing (2).
When the second housing (2) slides relative to the first housing (1), the position of the U-shaped bent portion of the flexible lead sheet (5) moves along the surface of the shield chassis (6), and slides. Is acceptable.
尚、フレキシブルリードシート(5)は、例えば図6に示す如く、信号線路を形成する厚さ18μmの銅箔(53)の両側に厚さ25μmの合成樹脂層(54)(54)を介して厚さ20μmのシールド層(55)(55)を配備し、更にその両側に厚さ20μmの合成樹脂層(56)(56)を配備した積層構造を有している。
しかしながら、図5に示すスライド式携帯電話機においては、アンテナの位置や向き等によって、所期の送受信性能が得られない問題があった。これは、2つの回路基板を互いに接続するフレキシブルリードシートが周囲の金属物と高周波的に結合して、アンテナからの高周波信号が無用な経路に流れ込むことによって損失が発生し、アンテナ特性が劣化するためであると考えられる。 However, the slide type mobile phone shown in FIG. 5 has a problem that the desired transmission / reception performance cannot be obtained depending on the position and orientation of the antenna. This is because the flexible lead sheet that connects the two circuit boards to each other is coupled in high frequency with the surrounding metal objects, and a high frequency signal from the antenna flows into a useless path, resulting in loss and degradation of the antenna characteristics. This is probably because of this.
そこで本発明の目的は、簡易な構成で所期のアンテナ特性を得ることが出来る通信端末機を提供することである。 Accordingly, an object of the present invention is to provide a communication terminal capable of obtaining desired antenna characteristics with a simple configuration.
本発明に係る通信端末機においては、ケーシングの内部に、高周波回路を内蔵したシールドシャーシ(6)が設置されると共に、2つの回路基板を互いに接続するフレキシブルリードシート(5)が収容され、該フレキシブルリードシート(5)は、少なくとも長手方向の一部領域が前記シールドシャーシ(6)の表面に沿って伸びている。ここで、前記シールドシャーシ(6)の表面には、厚さ0.1mm以上の絶縁層が形成されており、該絶縁層の表面にフレキシブルリードシート(5)の前記一部領域が接触している。 In the communication terminal according to the present invention, a shield chassis (6) incorporating a high-frequency circuit is installed inside the casing, and a flexible lead sheet (5) for connecting two circuit boards to each other is housed. The flexible lead sheet (5) has at least a partial region in the longitudinal direction extending along the surface of the shield chassis (6). Here, an insulating layer having a thickness of 0.1 mm or more is formed on the surface of the shield chassis (6), and the partial region of the flexible lead sheet (5) is in contact with the surface of the insulating layer. Yes.
具体的構成において、前記ケーシングは、互いにスライド可能に係合する第1筐体(1)と第2筐体(2)から構成され、第1筐体(1)の内部に前記シールドシャーシ(6)が設置され、第1筐体(1)に内蔵された回路基板(3)と第2筐体(2)に内蔵された回路基板(4)とが前記フレキシブルリードシート(5)によって互いに接続されている。 In a specific configuration, the casing includes a first casing (1) and a second casing (2) that are slidably engaged with each other, and the shield chassis (6) is provided inside the first casing (1). The circuit board (3) built in the first housing (1) and the circuit board (4) built in the second housing (2) are connected to each other by the flexible lead sheet (5). Has been.
又、前記フレキシブルリードシート(5)は、前記絶縁層の表面にてU字状に屈曲し、第1筐体(1)と第2筐体(2)のスライドに伴って、フレキシブルリードシート(5)のU字状屈曲部の位置が前記絶縁層の表面に沿って移動する。 The flexible lead sheet (5) is bent in a U-shape on the surface of the insulating layer, and the flexible lead sheet (5) is slid in accordance with the sliding of the first casing (1) and the second casing (2). 5) The position of the U-shaped bent portion moves along the surface of the insulating layer.
上記本発明の通信端末機においては、従来は互いに接触していたシールドシャーシ(6)の表面とフレキシブルリードシート(5)との間に、電気絶縁性を有する絶縁層が介在しているので、シールドシャーシ(6)の表面とフレキシブルリードシート(5)の間に、絶縁層の厚さに一致する間隙が設けられることになる。これによって、フレキシブルリードシート(5)とシールドシャーシ(6)の間の高周波的な結合が弱まり、アンテナ特性の劣化が抑制される。 In the communication terminal of the present invention, since an insulating layer having electrical insulation is interposed between the surface of the shield chassis (6) and the flexible lead sheet (5) that have been in contact with each other conventionally, A gap corresponding to the thickness of the insulating layer is provided between the surface of the shield chassis (6) and the flexible lead sheet (5). As a result, the high-frequency coupling between the flexible lead sheet (5) and the shield chassis (6) is weakened, and the deterioration of the antenna characteristics is suppressed.
ここで、絶縁層の厚さが0.1mm未満では殆ど効果は得られないが、絶縁層の厚さが0.1mmを超えると、飛躍的に効果が増大する。そして、絶縁層の厚さが更に大きくなる程、効果は増大するが、その増大率は大きなものでなくなる。
従って、絶縁層の厚さは、0.1mm以上、0.55mm以下が望ましい。
Here, the effect is hardly obtained when the thickness of the insulating layer is less than 0.1 mm, but the effect is remarkably increased when the thickness of the insulating layer exceeds 0.1 mm. As the thickness of the insulating layer is further increased, the effect is increased, but the increase rate is not large.
Therefore, the thickness of the insulating layer is desirably 0.1 mm or more and 0.55 mm or less.
本発明に係る通信端末機によれば、シールドシャーシ(6)の表面に絶縁シート(7)を貼着する等の簡易な構成で所期のアンテナ特性を得ることが出来る。 According to the communication terminal according to the present invention, desired antenna characteristics can be obtained with a simple configuration such as attaching the insulating sheet (7) to the surface of the shield chassis (6).
以下、本発明をスライド式携帯電話機に実施した形態につき、図面に沿って具体的に説明する。
本発明に係るスライド式携帯電話機は、図3(a)(b)に示す如く、互いにスライド可能に係合する第1筐体(1)と第2筐体(2)を具え、第1筐体(1)に回路基板(3)が内蔵されると共に、第2筐体(2)に回路基板(4)が内蔵され、両回路基板(3)(4)がフレキシブルリードシート(5)によって互いに連結されている。
Hereinafter, the embodiment in which the present invention is applied to a slide-type mobile phone will be specifically described with reference to the drawings.
As shown in FIGS. 3 (a) and 3 (b), a slide type mobile phone according to the present invention comprises a first casing (1) and a second casing (2) which are slidably engaged with each other, The circuit board (3) is built in the body (1), the circuit board (4) is built in the second housing (2), and both the circuit boards (3) and (4) are separated by the flexible lead sheet (5). Are connected to each other.
即ち、第1筐体(1)内の回路基板(3)上に設置されたコネクター(31)と第2筐体(2)内の回路基板(4)上に設置されたコネクター(41)に対し、U字状に屈曲するフレキシブルリードシート(5)の両端部に設けられた端子部(51)(52)が連結されている。 That is, the connector (31) installed on the circuit board (3) in the first casing (1) and the connector (41) installed on the circuit board (4) in the second casing (2). On the other hand, terminal portions (51) and (52) provided at both ends of the flexible lead sheet (5) bent in a U-shape are connected.
ここで、第1筐体(1)には、回路基板(3)上に、前記アンテナ(10)と繋がる高周波回路(図示省略)を内蔵したシールドシャーシ(6)が設置されている。
該シールドシャーシ(6)の表面には、厚さ0.1mmのポリエステル基材からなる絶縁シート(7)が、厚さ0.05mmの粘着層(図示省略)を介して貼着固定されており、全厚0.15mmの絶縁層が形成されている。
Here, the first casing (1) is provided with a shield chassis (6) including a high-frequency circuit (not shown) connected to the antenna (10) on the circuit board (3).
An insulating sheet (7) made of a polyester base material having a thickness of 0.1 mm is adhered and fixed to the surface of the shield chassis (6) via an adhesive layer (not shown) having a thickness of 0.05 mm. An insulating layer having a total thickness of 0.15 mm is formed.
絶縁シート(7)の表面は、回路基板(3)上のコネクター(31)に連結されたフレキシブルリードシート(5)の端子部(51)と同じ高さ位置を回路基板(3)と平行に伸びている。
一方、第2筐体(2)には、回路基板(4)上のコネクター(41)に連結されたフレキシブルリードシート(5)の端子部(52)と同じ高さ位置を回路基板(4)と平行に伸びるガイド面(22)が形成されている。
The surface of the insulating sheet (7) is parallel to the circuit board (3) at the same height as the terminal part (51) of the flexible lead sheet (5) connected to the connector (31) on the circuit board (3). It is growing.
On the other hand, the second housing (2) has the same height position as the terminal portion (52) of the flexible lead sheet (5) connected to the connector (41) on the circuit board (4). A guide surface (22) extending in parallel with the guide is formed.
フレキシブルリードシート(5)は、第1筐体(1)内の回路基板(3)上のコネクター(31)に接続された端子部(51)からシールドシャーシ(6)上の絶縁シート(7)の表面に沿って水平に伸び、U字状に屈曲しつつ第1筐体(1)に開設された窓(12)を通過し、180度折り返された後、第2筐体(2)のガイド面(22)に沿って水平に伸び、その先端に設けられた端子部(52)が、第2筐体(2)内の回路基板(4)上のコネクター(41)に接続されている。 The flexible lead sheet (5) is connected to the insulating sheet (7) on the shield chassis (6) from the terminal part (51) connected to the connector (31) on the circuit board (3) in the first housing (1). After passing through the window (12) established in the first casing (1) while extending horizontally along the surface of the first casing (1) and being folded 180 degrees, the second casing (2) A terminal portion (52) extending horizontally along the guide surface (22) and provided at the tip thereof is connected to a connector (41) on a circuit board (4) in the second housing (2). .
第1筐体(1)に対して第2筐体(2)がスライドすると、フレキシブルリードシート(5)のU字状屈曲部の位置が絶縁シート(7)の表面に沿って移動し、スライドが許容される。 When the second casing (2) slides relative to the first casing (1), the position of the U-shaped bent portion of the flexible lead sheet (5) moves along the surface of the insulating sheet (7), and slides. Is acceptable.
上記スライド式携帯電話機においては、従来は互いに接触していたシールドシャーシ(6)の表面とフレキシブルリードシート(5)との間に、電気絶縁性を有する絶縁シート(7)及び粘着層が介在しているので、シールドシャーシ(6)の表面とフレキシブルリードシート(5)の間に、絶縁シート(7)及び粘着層の厚さTに一致する間隙が設けられることになる。これによって、フレキシブルリードシート(5)とシールドシャーシ(6)の間の高周波的な結合が弱まり、アンテナ特性の劣化が抑制される。 In the slide type mobile phone, an insulating sheet (7) having electrical insulation and an adhesive layer are interposed between the surface of the shield chassis (6) and the flexible lead sheet (5) which have been in contact with each other conventionally. Therefore, a gap corresponding to the thickness T of the insulating sheet (7) and the adhesive layer is provided between the surface of the shield chassis (6) and the flexible lead sheet (5). As a result, the high-frequency coupling between the flexible lead sheet (5) and the shield chassis (6) is weakened, and the deterioration of the antenna characteristics is suppressed.
ここで、絶縁シート(7)を有しない従来のスライド式携帯電話機と、絶縁シート(7)及び粘着層からなる絶縁層の厚さTを0.10mm、0.15mm、0.25mm及び0.55mmの4種類に変えた本発明のスライド式携帯電話機を対象として、アンテナ利得を測定したところ、図4及び下記表1に示す結果が得られた。
尚、粘着層の厚さは0.05mmである。又、フレキシブルリードシート(5)は、図6に示す従来と同様の積層構造を有し、シールド層(55)を覆う合成樹脂層(56)の厚さは20μmである。
Here, the conventional sliding type mobile phone having no insulating sheet (7) and the thickness T of the insulating layer composed of the insulating sheet (7) and the adhesive layer are set to 0.10 mm, 0.15 mm, 0.25 mm and 0.25 mm. When the antenna gain was measured for the slide type mobile phone of the present invention that was changed to four types of 55 mm, the results shown in FIG. 4 and Table 1 below were obtained.
Note that the thickness of the adhesive layer is 0.05 mm. The flexible lead sheet (5) has the same laminated structure as shown in FIG. 6, and the thickness of the synthetic resin layer (56) covering the shield layer (55) is 20 μm.
図4及び表1から明らかな様に、絶縁シート(7)を有しない従来のスライド式携帯電話機は、アンテナ特性の悪いものとなっている。これは、フレキシブルリードシート(5)がシールドシャーシ(6)の表面と直接に接触して高周波的な結合が生じていることによるものである。
これに対し、シールドシャーシ(6)の表面に絶縁シート(7)を貼着固定して、シールドシャーシ(6)とフレキシブルリードシート(5)の間に厚さ0.10mmの絶縁層を設けた本発明のスライド式携帯電話機では、飛躍的にアンテナ特性が向上している。そして絶縁シート(7)の厚さが更に大きくなる程、アンテナ特性は改善されるが、厚さ増大による効果は徐々に薄れてくる。
従って、絶縁シート(7)を含む絶縁層の厚さは、0.1mm〜0.55mmの範囲が望ましいと言える。
As apparent from FIG. 4 and Table 1, the conventional slide type mobile phone having no insulating sheet (7) has poor antenna characteristics. This is because the flexible lead sheet (5) is in direct contact with the surface of the shield chassis (6) and high-frequency coupling occurs.
On the other hand, an insulating sheet (7) is adhered and fixed to the surface of the shield chassis (6), and an insulating layer having a thickness of 0.10 mm is provided between the shield chassis (6) and the flexible lead sheet (5). In the slide type mobile phone of the present invention, the antenna characteristics are dramatically improved. As the thickness of the insulating sheet (7) is further increased, the antenna characteristics are improved, but the effect of increasing the thickness is gradually reduced.
Therefore, it can be said that the thickness of the insulating layer including the insulating sheet (7) is desirably in the range of 0.1 mm to 0.55 mm.
上述の如く本発明に係るスライド式携帯電話機によれば、シールドシャーシ(6)の表面に絶縁シート(7)を貼着固定するだけの簡易な構成で、従来のスライド式携帯電話機で発生していたアンテナ特性の劣化を効果的に抑制し、所期のアンテナ特性を得ることが出来る。 As described above, according to the slide type mobile phone according to the present invention, it is generated in a conventional slide type mobile phone with a simple configuration in which the insulating sheet (7) is simply bonded and fixed to the surface of the shield chassis (6). It is possible to effectively suppress the deterioration of the antenna characteristics and obtain the desired antenna characteristics.
尚、本発明の各部構成は上記実施の形態に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能である。
又、本発明は、スライド式携帯電話機に限らず、単一のシーケングを具えた携帯電話機や折り畳み式携帯電話機に実施することも可能である。
In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.
Further, the present invention is not limited to a slide-type mobile phone, and can also be implemented in a mobile phone or a foldable mobile phone having a single sequencing.
(1) 第1筐体
(2) 第2筐体
(3) 回路基板
(4) 回路基板
(5) フレキシブルリードシート
(6) シールドシャーシ
(7) 絶縁シート
(1) First housing
(2) Second housing
(3) Circuit board
(4) Circuit board
(5) Flexible lead sheet
(6) Shield chassis
(7) Insulation sheet
Claims (5)
Priority Applications (1)
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JP2004298437A JP4199718B2 (en) | 2004-10-13 | 2004-10-13 | Sliding communication terminal |
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JP2004298437A JP4199718B2 (en) | 2004-10-13 | 2004-10-13 | Sliding communication terminal |
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JP2006115048A true JP2006115048A (en) | 2006-04-27 |
JP4199718B2 JP4199718B2 (en) | 2008-12-17 |
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JP2008131544A (en) * | 2006-11-24 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Portable terminal |
JP2008193629A (en) * | 2007-02-08 | 2008-08-21 | Sanyo Electric Co Ltd | Sliding type portable terminal |
JP2010154291A (en) * | 2008-12-25 | 2010-07-08 | Nec Corp | Slide type electronic apparatus |
WO2010098269A1 (en) | 2009-02-25 | 2010-09-02 | 日本電気株式会社 | Radio |
KR101218681B1 (en) | 2006-08-22 | 2013-01-18 | 엘지전자 주식회사 | Portable terminal |
US9104379B2 (en) | 2012-12-25 | 2015-08-11 | Kabushiki Kaisha Toshiba | Electronic apparatus |
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Cited By (8)
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KR101218681B1 (en) | 2006-08-22 | 2013-01-18 | 엘지전자 주식회사 | Portable terminal |
JP2008131544A (en) * | 2006-11-24 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Portable terminal |
JP2008193629A (en) * | 2007-02-08 | 2008-08-21 | Sanyo Electric Co Ltd | Sliding type portable terminal |
JP4668216B2 (en) * | 2007-02-08 | 2011-04-13 | 京セラ株式会社 | Sliding mobile terminal |
JP2010154291A (en) * | 2008-12-25 | 2010-07-08 | Nec Corp | Slide type electronic apparatus |
WO2010098269A1 (en) | 2009-02-25 | 2010-09-02 | 日本電気株式会社 | Radio |
US8810476B2 (en) | 2009-02-25 | 2014-08-19 | Nec Corporation | Wireless apparatus |
US9104379B2 (en) | 2012-12-25 | 2015-08-11 | Kabushiki Kaisha Toshiba | Electronic apparatus |
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