JP2009141627A - Wiring structure for slide type electronic device, and slide type electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring structure for slide type electronic devices which is excellent in folding property and durability and also is excellent in transmission characteristics and noise resistance, and to provide a slide type electronic device to which the wiring structure for slide type electronic devices is applied. <P>SOLUTION: The wiring structure 1 for slide type electronic devices is provided with a first sliding member 2, a second sliding member 3, harness 6 and a pair of wiring guide mechanisms 4, 5, wherein the sliding members 2, 3 are mounted to relatively move, the pair of wiring guide mechanisms 4, 5 are enabled to move relatively to each other in a direction orthogonal to a relative moving direction, and a wiring layered part 6b is wound around the pair of wiring guide mechanisms 4, 5, bent to meander, and housed in a space between the first sliding member 2 and the second sliding member 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wiring structure of a slide-type electronic device and an improvement of the slide-type electronic device. More specifically, the present invention relates to a wiring structure of a slide-type electronic device using a micro coaxial cable and a slide-type electronic device to which the wiring structure is applied. It is about.

  In general, in an electronic device in which two or more housings are connected, a flexible printed circuit board (hereinafter referred to as FPC) is used as a wiring between the housings.

  For example, in an electronic apparatus exemplified by a slide type mobile phone in which two casings slide relative to each other as shown in FIG. 7D, wiring made of FPC is generally used (Patent Documents 1 to 3). 3). The wiring applied to the slide type structure as shown in FIG. 7 (d) is required to have horizontal bending in a very narrow space of 3 mm in the height direction between the casings and bending resistance performance of about 100,000 times or more. Yes. FIG. 8 shows a wiring structure 100 of a slide-type electronic device to which the FPC 110 is applied as an inter-casing wiring material. The wiring structure 100 has a first housing 101 and a second housing 102 slidably attached to the first housing 101, and each circuit is electrically connected by an FPC 110. A space having a height H of about 3 mm is provided between the first and second casings 101 and 102, and the FPC 110 is wired in a state of being bent in this space. When the first and second casings 101 and 102 slide relative to each other, the FPC 110 itself is deformed according to the sliding amount so that the first and second casings 101 and 102 can follow the relative movement. It has become. This is because the FPC has excellent bendability even in a narrow bending space.

  However, since the FPC has a plurality of signal lines fixed by a resin film or the like, each signal line is not shielded and has a drawback of being vulnerable to noise. In addition, electronic devices typified by cellular phones have advanced functions and performance, and electrical connection wiring is required to improve transmission characteristics and noise resistance.

Therefore, in place of the FPC, an extra fine coaxial cable having good transmission characteristics and noise resistance is used as the wiring. Patent Documents 4 and 5 disclose modules obtained by flattening an ultrafine coaxial cable excellent in transmission characteristics and noise resistance.
That is, in Patent Document 4, as a multi-core coaxial cable using a plurality of coaxial cables, a plurality of coaxial cables are arranged in parallel in parallel to form warps, plastic fiber yarns are weft yarns, and warp yarns and weft yarns are crossed one by one. A flat cable formed by flat weaving is disclosed.
On the other hand, Patent Document 5 discloses a flat cable with a common jacket as a multi-core coaxial cable using a plurality of coaxial cables, in which a plurality of coaxial cables are arranged in parallel.

  However, since the ultrafine coaxial cable is not foldable as compared with the FPC, the module obtained by flattening the ultrafine coaxial cable disclosed in Patent Documents 4 and 5 has a clamshell type as shown in FIG. Opening and closing structure referred to, a rotating structure referred to as a jack knife type as shown in FIG. 7B, and a twisted type as shown in FIG. However, for the slide type electronic device shown in FIG. 7D, there is a problem that the micro coaxial cable cannot be applied simply by replacing the FPC.

From the above, in particular, in an electronic device having two housings and allowing them to slide relative to each other, a wiring structure excellent in transmission characteristics and noise resistance has been desired.
JP 2006-128808 A JP 2006-216908 A Japanese Patent No. 3723539 JP 2006-286299 A JP 2006-202641 A

  The present invention has been made in view of the above circumstances, and provides a wiring structure for a slide-type electronic device having excellent bendability and durability, and excellent transmission characteristics and noise resistance. An object of the present invention is to provide a slide-type electronic apparatus to which the wiring structure of FIG.

In order to achieve the above object, the present invention employs the following configuration.
That is, the wiring structure of the slide type electronic device according to the present invention supports the plurality of housings having circuits so as to be relatively movable, and electrically connects the circuits between the housings by wiring. A first slide member attached to the housing on one side; a second slide member attached to the housing on the other side; a plurality of wires; and an end portion of the wires. And a harness that is routed between the first slide member and the second slide member, and the first slide member and the second slide member, respectively, and biases the wiring. A pair of wiring guide mechanisms to be supported, the first slide member and the second slide member are attached so as to be capable of relative movement, and the pair of wiring guide mechanisms are arranged in a direction perpendicular to the relative movement direction. The wiring stacking portion in which a plurality of wirings are stacked is bent so as to be wound around a pair of wiring guide mechanisms, and between the first slide member and the second slide member. It is stored in the space part.

In the wiring structure of the slide type electronic device according to the present invention, the wiring laminated portion in which a plurality of wires constituting the harness are stacked is wound around the wiring guide mechanism in the space between the first slide member and the second slide member. It is bent and bent to meander. Accordingly, the wiring does not need to have a bending radius in the height direction of the space portion, and can have a bending radius in the width direction of the space portion. Therefore, even a wiring that does not have excellent bending characteristics can be used for a slide-type electronic device, and a wiring structure for a slide-type electronic device having excellent bending resistance can be provided.
In addition, since the wiring laminated portion is bent so as to meander around the pair of wiring guide mechanisms, the expansion and contraction of the wiring due to the opening and closing of the slide hinge housing composed of the first and second slide members is wired. It can be absorbed by the guide mechanism. Accordingly, it is possible to provide a wiring structure of a slide type electronic device that can prevent slack of wiring when the slide hinge housing is opened and closed.
In addition, since the wiring laminated portion is bent so as to meander by a pair of wiring guide mechanisms, it is not necessary to change the cable length inside and outside the wiring laminated portion, and the assembly of the electronic device wiring harness is simplified. be able to.
In addition, since the wiring is accommodated in the space between the first slide member and the second slide member, which are the housing of the slide hinge, it does not rub against other parts during sliding movement. Reliability is improved.
In addition, since the slide hinge housing and the harness are integrated, handling is facilitated when being incorporated into a slide-type electronic device, and productivity is improved.

The wiring is composed of at least a plurality of micro-coaxial cables and a resin coating material, and covers the micro-coaxial cables collectively by covering the plurality of micro-coaxial cables arranged in parallel with each other with the coating material. It is preferable that the wiring laminated portion is accommodated so that the fine coaxial cables are arranged in the space portion along the direction in which the first slide member and the second slide member face each other.
The plurality of flat cables are preferably of equal length.

The wiring that makes up the harness is a flat cable that covers a plurality of micro coaxial cables arranged in parallel to each other with a covering material, thereby covering the micro coaxial cables in a lump, thus improving transmission characteristics and noise resistance. An excellent wiring structure for a slide-type electronic device can be provided.
Further, since the fine coaxial cables are arranged in the space portion along the direction in which the first slide member and the second slide member face each other, the fine coaxial cable is bent in the width direction of the space portion. A radius can be taken, and jumping of adjacent flat cables can be prevented by the first slide member and the second slide member.
Further, since the plurality of flat cables are equal in length, it is possible to suppress the bending of the wiring laminated portion when the wiring laminated portion is bent so as to meander.

The wiring guide mechanism of the present invention is preferably composed of at least a cylindrical piece member. Moreover, it is preferable that the radius of a cylinder is more than the minimum bending radius of wiring.
By configuring the wiring guide mechanism with a cylindrical piece member, the expansion and contraction of the wiring following the opening and closing of the slide hinge housing can be smoothly biased and supported by the rotation of the piece member.
Also, by setting the radius of the cylinder to be equal to or larger than the minimum bending radius of the wiring, the bending radius of the micro coaxial cable constituting the wiring can be ensured to be equal to or larger than the minimum bending radius. Thereby, since the micro coaxial cable can be applied to the wiring structure of the slide type electronic device, it is possible to provide the wiring structure of the slide type electronic device which is excellent in transmission characteristics and noise resistance.

According to the slide type electronic device of the present invention, a plurality of cases having circuits are attached so as to be relatively movable by the wiring structure of the slide type electronic device described above, and the circuits in these cases are electrically connected to each other. It is characterized by becoming.
Since the slide type electronic device of the present invention uses the wiring structure of the slide type electronic device described above, a thin slide type electronic device having excellent transmission characteristics and noise resistance can be provided.

  As described above, according to the wiring structure of the slide-type electronic device of the present invention and the slide-type electronic device to which the slide-type electronic device is applied, the slide-type is excellent in bendability and durability, and excellent in transmission characteristics and noise resistance. While providing the wiring structure of an electronic device, the slide type electronic device to which the wiring structure of a slide type electronic device is applied can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a slide type electronic apparatus to which the present invention is applied. 2 and 3 are diagrams showing a wiring structure of the slide type electronic apparatus according to the embodiment of the present invention. 4 and 5 are views for explaining the electronic device wiring harness of the present embodiment. Further, FIG. 6 is a perspective view showing a slide type electronic apparatus which is an embodiment of the present invention. 1 to 6 below are for explaining the configuration of the embodiment of the present invention. The size, thickness, dimensions, etc. of each part shown in the drawings are the wiring structure and slide type of an actual slide type electronic device. It may be different from the dimensions of electronic equipment.

  First, the structure of the slide type electronic device 21 which is one embodiment of the present invention will be described. As shown in FIG. 1, the slide-type electronic device 21 is generally configured by a lower housing 22, an upper housing 23, and a wiring structure 1. Further, a first slide member 2 and a second slide member 3 of the wiring structure 1 (hereinafter referred to as the wiring structure 1) of the slide type electronic device are attached to the lower housing 22 and the upper housing 23, respectively. These can be slid to each other via the wiring structure 1.

  Next, the configuration of the wiring structure 1 will be described in detail with reference to the drawings. As shown in FIG. 2A, the wiring structure 1 includes a first slide member 2 and a second slide member 3, which are a casing of the wiring structure 1, and a first slide member 2 and a second slide member. 3, an electronic device wiring harness 6 (hereinafter referred to as harness 6) routed between a pair of wiring guide mechanisms 4, 5 provided respectively on 3, and the first slide member 2 and the second slide member 3. It is roughly composed of. The first slide member 2 and the second slide member 3 are attached so as to be slidable along the longitudinal direction of the wiring structure 1. As a result, the intermediate state of the sliding operation as shown in FIG. 2B is changed from the state in which the first slide member 2 and the second slide member 3 are completely overlapped as shown in FIG. After that, as shown in FIG. 2 (c), the first slide member 2 and the second slide member 3 are configured to be able to slide back and forth with a stroke until a part of the first slide member 2 and the second slide member 3 are overlapped. . Hereinafter, each configuration will be described in detail.

  As shown in FIG. 2, the first slide member 2 has a main surface portion 2a, a bent portion 2b erected from both ends in the width direction of the main surface portion 2a, and the main surface portion 2a on the bent portion 2b. It is comprised roughly from the top | upper surface part (not shown) provided so that it might do. The second slide member 3 includes a main surface portion 3a, a side surface portion 3b erected from both ends in the width direction of the main surface portion 3a, and a ceiling provided on the side surface portion 3b so as to face the main surface portion 3a. It is roughly composed of a surface portion (not shown).

  As shown in FIG. 2, the housing of the wiring structure 1 is configured such that the main surface portion 3 a of the second slide member 3 is partially overlapped on the main surface portion 2 a of the first slide member 2. Further, a space portion having a height corresponding to the height of the bent portion 3a and the side surface portion 3b is provided between the main surface portion 2a and the main surface portion 3a and the top surface portions of the slide members 2 and 3 (not shown). It has been. A pair of wiring guide mechanisms 4 and 5 and a harness 6 are housed in this space. In addition, the harness 6 is housed by being bent so as to meander by a pair of wiring guide mechanisms in the space. In addition, the minimum height of the space portion (that is, the height of the side surface portion 3b) is, for example, about 3 mm. The width between the side surface portions 3b (that is, the minimum width of the space portion) is, for example, about several tens mm. In the present embodiment, the configuration in which the main surface portion 3b is partially overlapped on the main surface portion 2a has been described. However, the present invention is not limited to this, and the main surface portion 2a and the main surface portion 3a have the same height. Such a configuration may be adopted.

Further, as shown in FIG. 2, the wiring structure 1 is provided with a slide mechanism. The slide mechanism of the present embodiment includes a bent portion 2b of the first slide member 2 and a side surface portion 3b of the second slide member 3, and the bent portion 2b and the side surface portion 3b slide relative to each other. It is supposed to be free. Thereby, the 1st slide member 2 and the 2nd slide member 3 can be slid mutually.
Note that the slide mechanism is not particularly limited, and the first slide member 2 and the second first slide member 2 that form the casing of the wiring structure 1 can slide with each other. That's fine. For example, an engagement protrusion is provided on the main surface portion 2a of the first slide member 2, a flange portion is provided on the outer side in the width direction of the second slide member 4, and the flange portion and the engagement protrusion are engaged. The first slide member 2 and the second slide member 3 may be slidable with respect to each other.
Furthermore, the wiring structure 1 may be provided with a snap actuating member. The snap actuating member is not particularly limited as long as it connects the first slide member 2 and the second slide member 3 so that the snap actuating is possible. For example, a torsion spring can be used as the snap actuating member.
Note that these slide mechanism and snap actuating member are preferably housed in the aforementioned space.

As shown in FIG. 2, an opening 2 c is provided in the main surface portion 2 a of the first slide member 2. The opening 2c is provided on _one bent portion 2b1 side of the pair of bent portions 2b. Further, one connector 12 of the harness 6 described later can be taken out of the wiring structure 1 through the opening 2c. Similarly, the second slide member 3 is provided with an opening 3c. The opening 3 of the pair of side portions 3b, is provided on one side portion 3b ₂ side. Further, the other connector 13 of the harness 6 to be described later can be taken out of the wiring structure 1 through the opening 3c. As a result, as shown in FIG. 1, one connector 12 of the harness 6 can be connected to the connector connecting portion of one housing 22 of the slide type electronic device 21, and the other connector 13 is connected to the other connector 13. It can be connected to the connector connecting portion of the housing 23. In addition, the position, range, and size (hereinafter referred to as position) of the openings 2c and 3c with respect to the first slide member 2 and the second slide member 3 are the slide type electronic devices to which the wiring structure 1 is applied. It can be arbitrarily set according to the position of the connector connecting portion provided in the casings 22 and 23 of the 21. The formation of the openings 2c and 3c is not limited to both the first slide member 2 and the second slide member 3, but one of the first slide member 2 and the second slide member 3 is used. It may be formed on one side.

  As shown in FIGS. 2 and 3, the wiring guide mechanisms 4 and 5 are provided along a pair of movement guide members 7 attached to the first and second slide members 2 and 3, respectively, and the pair of movement guide members 7. A movable member 8 that is slidable, a pair of urging bodies 9 that are attached between the pair of movement guide members 7 and the movable member 8 and restrict the sliding amount of the movable member 8, and the movable member 8. A top member 10 that is attached and on which the wiring portion 6a (wiring laminated portion 6b) of the harness 6 is wound is schematically configured. The wiring guide mechanisms 4 and 5 allow the cable portion 6a of the harness 6 to hang in the space inside the housing when the housing composed of the first slide member 2 and the second slide member 3 slides relative to each other. It is provided to support the bias so that there is no.

The wiring guide mechanism 4 is provided on the main surface 2a of the first slide member 2 and on the other bent portion 2b ₂ side opposite to the opening 2c. The wiring guide mechanism 5, a on the second slide member 3 of the main surface 3a, provided on the other side surface portion 3b ₁ lying on the side opposite to the opening 3c. The wiring guide mechanisms 4 and 5 are provided at positions that are point-symmetric with respect to each other from the center of the wiring structure 1. As a result, when the wiring laminated portion 6b of the cable portion 6a is biased and supported, the wiring laminated portion 6b is biased and supported from opposite sides, so that the wiring laminated portion 6b meanders. It can be bent.

That is, as shown in FIG. 2, the harness 6 has one connector 12 on the opening 2c side and the other connector 13 on the opening 3c side. The wiring laminated portion 6b of the harness 6 extends from one connector 12 to the bent portion 2b ₂ side, is wound around the wiring guide mechanism 4 near the bent portion 2b _2, and is on the side surface portion 3b ₁ side. It is bent toward the wiring guide mechanism 5. Further, the cable portion 6a is wound around the wiring guide mechanism 5 and bent toward the side surface portion 3b2. And the other connector 13 which is the other terminal of the harness 6 is located in the opening 3c. In this way, the harness 6 is meandered by the wiring guide mechanisms 4 and 5.

  As shown in FIG. 3, the pair of movement guide members 7 are members having a U-shaped cross-sectional view. Inside the moving guide member 7, as shown in FIGS. 2 and 3, a guide shaft 7a is disposed along the longitudinal direction. The moving member 8 has a pair of holes at both ends. The guide shafts 7a are inserted into the holes so that the moving member 8 can slide. Further, the urging body 9 is inserted into the guide shaft 7 a and is attached between one end of the inner side surface of the moving guide member 7 and the moving member 8, and the moving member 8 is connected to one end side of the moving guide member 7. Is energized.

  The biasing body 9 is not particularly limited as long as the above-described moving member 8 can bias the one end side of the moving guide member 7. In the present embodiment, for example, a coil spring can be applied as the biasing body 9. When a coil spring is used as the urging body 9, when the moving member 8 moves from one end side to the other end side of the moving guide member 7 and the guide shaft 7a, the distance between both end portions of the coil spring increases, so that the return stress Will occur. Therefore, the coil spring can be urged toward the one end side by the moving member 8 along the moving guide member 7. Moreover, it is also possible to apply a resistance spring as the urging body 9. The urging force of the urging body 9 can be freely selected according to the slide length of the wiring structure 1 and the length of the cable portion 6a of the harness 6.

As shown in FIGS. 2 and 3, the top member 10 is a cylindrical roller member around which the wiring laminated portion 6b of the cable portion 6a is wound. The top member 10 is attached to a substantially central portion of the moving member 8 so as to be rotatable. As a result, as shown in FIGS. 2A to 2C, when the first and second slide members 2 and 3 slide and the wiring portion 6a of the harness 6 follows and deforms, the wiring is performed. The top member 10 rotates while changing the position for urging the stacked portion 6b.
Further, the radius of the top member 10 is not particularly limited, but is preferably equal to or greater than the minimum bending radius of the wiring configuring the harness 6. In the present embodiment, the harness 6 is composed of the flat cable 11 made of the micro coaxial cable 14 as will be described later. Therefore, the harness 6 is preferably 5 mm or more which is the minimum bending radius of the micro coaxial cable 14. Further, 4 mm, 3 mm, 2 mm, or the like can be selected as appropriate in accordance with the minimum bending radius of the micro coaxial cable 14. As a result, the micro coaxial cable 14 can be applied to the wiring structure 1 of the slide type electronic device.

  As described above, the pair of wiring guide mechanisms 4 and 5 are bent so as to meander when the wiring laminated portion 6b is wound, so that the space between the first slide member 1 and the second slide member 2 is obtained. It can be stored in the part. In addition, the pair of wiring guide mechanisms 4 and 5 are mechanisms that absorb the expansion and contraction of the cable portion 6a that occurs when the slide members 2 and 3 are opened and closed in order to bias and support the wiring laminated portion 6b.

  As shown in FIG. 4, the harness 6 is schematically configured by laminating a plurality of flat cables 11 and connecting connectors 12 and 13 to both ends thereof. The harness 6 is housed in a space between the first slide member 2 and the second slide member 3. Further, as shown in FIG. 2, the cable portion 6a (wiring laminated portion 6b) of the harness 6 is wound around a pair of wiring guide mechanisms 4 and 5, and is substantially S-shaped (or N-shaped or Z-shaped in plan view). It is meandering and bent to form. When the first and second slide members 2 and 3 are slid, the connectors 12 and 13 are separated from each other along the sliding direction. At this time, they are wound around the pair of wiring guide mechanisms 4 and 5. The cable portion 6a (wiring laminated portion 6b) is deformed at the same time so that the movement of the connectors 12 and 13 can be followed.

As shown in FIG. 4C, the flat cable 11 includes four coaxial coaxial cables 14 that are substantially circular in cross-section, and a sheath (covering material) 15 that covers the outer periphery of the four micro coaxial cables 14. It is composed of Further, the cross-sectional shape of the sheath 15 is a racetrack shape because the four circular coaxial cables 14 are collectively covered, and the outer side surfaces 15a of the pair of straight portions are substantially flat surfaces. ing. As shown in FIGS. 4A and 4B, the harness 6 is laminated so that the flat outer surfaces 15a of the flat cables 11 are in contact with each other to form a laminated portion (wiring laminated portion) 6b. Has been. Thereby, in the space part, the four micro coaxial cables 14 constituting each flat cable 11 are arranged in four rows along the stacking direction. That is, the laminated portion 6b is formed in the space portion so that the micro coaxial cables 14 are arranged along the direction in which the first slide member 2 (the main surface portion 2a) and the second slide member 3 (the main surface portion 3a) face each other. In the present embodiment, the number of the micro coaxial cables 14 is not particularly limited, and may be several to several tens depending on the relationship with the height of the storage portion. Further, in the present embodiment, only the configuration of the micro coaxial cable 14 is shown, but the configuration of the present embodiment is not limited to this, and a cable other than the coaxial cable such as a feeding wire or an optical cable and the micro coaxial cable And the flat cable 11 may be configured.

  As shown in FIGS. 2 and 3, the cable portion 6 a is wound around the piece members 10 of the pair of wiring guide mechanisms 4 and 5 and bent into an arc shape. At this time, in the cable part 6a wound around the one piece member 10, the flat cable 11a on one end side in the stacking direction among the stacked flat cables 11 is the innermost peripheral side of the arc, and the stacking direction The flat cable 11b on the other end side is bent so as to be on the outermost peripheral side of the arc. On the other hand, in the cable portion 6a wound around the other piece member 10, the flat cable 11a on one end side in the stacking direction is the outermost peripheral side of the arc, and the flat cable 11b on the other end side in the stacking direction is the outermost side of the arc. It is bent so as to be on the inner circumference side. The entire harness 6 having the cable portion 6a bent in this arc shape is accommodated in the space portion between the slide members 2 and 3.

The bending radius of the flat cable 11 is maximized on the outermost circumferential side of the arc wound around each piece member 10, and is minimized on the innermost circumferential side of the arc. The bending radius of the flat cable 11 on the innermost peripheral side of the arc is the smallest and is the size of the radius of the cylindrical piece member 10 (5 mm in this embodiment). Further, the bending radius of the flat cable 11 on the outermost peripheral side of the arc is obtained by adding the thickness of the flat cable to the bending radius of the flat cable 11 on the innermost peripheral side. In any case, the bending radius of the flat cable 11 incorporated in the wiring structure 1 is determined by the radius of the cylindrical piece 10.
The cable portion 6a is substantially linear in three sections from one connector 12 to the wiring guide mechanism 4, from the wiring guide mechanism 4 to the wiring guide mechanism 5, and from the wiring guide mechanism 5 to the other connector 13. In a section around the piece members 10 of the wiring guide mechanisms 4 and 5, the state is bent with a constant radius of curvature. In addition, when the first and second slide members 2 and 3 slide, the length of the bent portion of the cable portion 6a (wiring laminated portion 6b) (the range wound around the piece member 10) is deformed. Needless to say.

  Further, the distance between adjacent flat cables 11 is relatively large in the vicinity of the connectors 12 and 13 of the cable portion 6a. On the other hand, in the laminated part 6b, the distance between adjacent flat cables 11 is relatively narrow, and the adjacent flat cables 11 are in partial contact with each other and are in a dense state. Further, as described above, the cross-sectional shape of the flat cable 11 is a race track shape, and the width in the direction in which the four micro coaxial cables 14 are arranged is wider than the width in the direction perpendicular thereto. The flat cable 11 cannot jump over adjacent cables, and the arrangement of the cables near the connectors 12 and 13 and the arrangement of the cables in the laminated portion 6b are in the same order. And since the width | variety of the direction orthogonal to this is narrower than the width | variety of the arrangement direction of the micro coaxial cable 14, the harness 6 is flexible in the direction orthogonal to the arrangement direction of the micro coaxial cable 14 of the flat cable 11. The flexibility is not impaired even in the laminated portion 6b.

  Moreover, it is preferable that the laminated | stacked several flat cable 11 is equal length. That is, it is preferable that the flat cable 11a on one end side in the stacking direction and the flat cable 11b on the other end side have the same wiring length. In the present embodiment, since the flat cable 11 is bent and wired so as to meander by the pair of wiring guide mechanisms 4 and 5 (that is, because it is a point-symmetric wiring method), the flat cable 11 may have the same length. it can. As a result, almost the entire area of the cable portion 6a (excluding the vicinity of the connection portion with the connectors 12 and 13) becomes the wiring laminated portion 6b having a dense wiring interval, so that the cable portion 6a (wiring laminated portion 6b) is not slackened. It can be wired.

  As shown in FIG. 5A, the micro coaxial cable 14 includes a center conductor 16, an inner insulating layer 17 surrounding the center conductor 16, an outer conductor 18 surrounding the center conductor 16, and an outer covering (hereinafter referred to as a jacket) surrounding the center conductor 16. 19). The type of the micro coaxial cable 14 to be used and the combination of the winding direction of the outer conductor are not particularly limited, but the center conductor 16 is preferably a cable having an AWG (American Wire Gauge) 36 or less, and a range of AWG 42 to 50. More preferably, it is a cable. The material of the inner insulating layer 17 is not particularly limited, but a fluororesin is preferably used, and PFA (tetraethylene / fluoroperfluoroalkyl vinyl ether copolymer; melting point 300 ° C.) is more preferable.

The sheath 15 has a racetrack shape in cross section, and the surfaces of the pair of straight portions constituting the racetrack shape are flat on both the outer side surface 15a and the inner side surface 15b. The shape of the micro coaxial cable 14 is not transferred to the outer surface 15a. Moreover, in the contact part 14a of the mutually adjacent micro coaxial cables 14, although the mutual cables are in contact, the jacket 19 is not fused to each other.
Further, the sheath 15 restricts the movement of the micro coaxial cable 14 over the adjacent cables. Further, at the contact portion 14b of the sheath 15 and the micro coaxial cable 14, the sheath 15 and the jacket 19 are in contact, but the resins are not fused together.
In the present embodiment, a gap 20 exists between the sheath 15 and the micro coaxial cable 14 without being filled with resin or the like constituting the sheath 15. However, the present embodiment is not limited to this, and the flat cable 11 may be filled with a resin that improves the flexibility and bending durability.

  The material of the sheath 15 is not particularly limited, but an ultraviolet curable resin, a fluororesin, or the like is preferable, and ETFE (melting point: 225 ° C.) is more preferable. A fluororesin is preferable because it has a low melting point and can be easily formed thin. Moreover, since the friction resistance of the outer peripheral surface 15a and the inner peripheral surface 15b of the sheath 15 is small, it is preferable in that the flexibility of the flat cable 11 described above is not hindered.

  Table 1 shows the comparison results for the characteristics of PFA and ETFE. As shown in Table 1, ETFE is superior in tensile strength and tensile elongation compared to PFA. For this reason, by using ETFE as the sheath material, mechanical characteristics are improved as compared with PFA, and the flat cable 11 can be covered with a thin wall. Moreover, the coating method of the sheath 15 is not particularly limited, but it is preferable that four micro coaxial cables 14 are arranged in parallel and collectively covered by extrusion molding. Thereby, it becomes possible to make the ultra-fine coaxial cable 14 into a flat cable, which has been difficult in the past. The thickness of the sheath 15 is not particularly limited, but is preferably in the range of 10 to 50 μm, and more preferably in the range of 20 to 30 μm. When the thickness of the sheath 15 is in the range of 10 to 50 μm, the flat cable 11 is preferable because sufficient flexibility can be ensured.

  In the present embodiment, the difference in melting point between the resin constituting the sheath 15 and the resin constituting the jacket 19 is preferably 30 ° C. or higher, and more preferably 50 ° C. or higher. If the difference in melting point is 30 ° C. or more, the sheath 15 can be selectively excised using a carbonic acid laser or the like. Thereby, only the sheath 15 can be excised and peeled off without fusing the contact portion 14b between the sheath 15 and the jacket 19. Further, when ETFE is used for the sheath 15, the sheath 15 can be excised even if the output of the carbonic acid laser is small, which is preferable in terms of ensuring safety in operation and cost reduction.

  As shown in FIG. 5B, the sheath 15 is peeled off at the connecting portion between the flat cable 11 and the connectors 12 and 13, and the micro coaxial cable 14 is exposed. For this reason, each one of the fine coaxial cables is easy to move, and the wiring interval of the fine coaxial cable 14 can be easily adjusted to the terminal pitch of the connectors 12 and 13. The width of the exposed micro coaxial cable 14 is preferably about 3 mm. In the flat cable 11, the arrangement direction of the micro coaxial cables 14 connected to the connectors 12 and 13 and the arrangement direction of the micro coaxial cables 14 in the flat cable 11 in the laminated portion 6b are perpendicular to each other by 90 °. And are connected to the connectors 12 and 13.

  The method of exposing the micro coaxial cable 14 by excising the sheath 15 is typically connected to the connectors 12 and 13, but is not limited to this in the present embodiment. It is also possible to cut the sheath 15 by cutting the cable portion in an arbitrary range. Since the micro coaxial cable 14 is exposed from the surface of the cable portion in the portion where the sheath 15 is cut, each of the cables is easy to move. Thereby, the bending characteristic of the flat cable 11 can be improved, such as applying an exposed part to a cable hinge or the like.

Next, the sliding operation of the wiring structure 1 of this embodiment will be described.
FIG. 2A shows a state in which the casing (first and second slide members 2 and 3) of the wiring structure 1 of the present embodiment is closed, and FIG. 2B shows that the casing is being slid. FIG. 2 (c) shows a state in which the housing is slid.

In FIG. 2A, when the second slide member 3 is manually slid with respect to the first slide member 2, the harness depends on the slide amount between the first and second slide members 2, 3. 6, the shape of the cable portion 6a (wiring laminated portion 6b) changes. That is, in the wiring laminated portion 6b, the ratio of the length between the wiring guide mechanisms 4 and 5 (hereinafter referred to as region 1) increases, and the length between the connector 12 and the wiring guide mechanism 4 (hereinafter referred to as region). 2) and the ratio of the length between the connector 13 and the wiring guide mechanism 5 (hereinafter referred to as region 3) is reduced. Further, since the length of the wiring laminated portion 6b is the sum of the region 1, the region 2, and the region 3, when the region 1 is enlarged, the region 2 and the region 3 are reduced.
Therefore, when the first and second slide members 2 and 3 slide (area 1 is enlarged), the top member 10 is pressed to the respective connectors 12 and 13 side by the wiring laminated portion 6b. The pressed top member 10 slides together with the slide member 8 toward the connectors 12 and 13 against the biasing force of the biasing body 9. For this reason, the above-mentioned areas 2 and 3 are reduced, respectively. As a result, the wiring structure 1 enters the sliding state shown in FIG. 2C through the state shown in FIG. 2B without sagging in the cable portion 6a (wiring laminated portion 6b).
Further, when the second slide member 3 is slid from the state of FIG. 2C, the state returns to the state of FIG. 2A through the same process.

Next, a slide type electronic apparatus to which the wiring structure 1 of the present embodiment is applied will be described. As shown in FIG. 6, the slide-type electronic device 21 is generally configured by a lower housing 22, an upper housing 23, and a wiring structure 1. A first slide member 2 and a second slide member 3 of the wiring structure 1 are attached to the lower housing 22 and the upper housing 23, respectively, and can be slid to each other via the wiring structure 1. ing.
Each housing 22, 23 is provided with a connector connecting portion (not shown) serving as an input / output portion of the circuit portion. One connector 12 of the harness 6 is connected to a connector connecting portion (not shown) of the lower housing 22, and the other connector 13 is a connector connecting portion (not shown) of the upper housing 23. It is connected to the. Accordingly, the circuit portions of the two casings 22 and 23 are electrically connected via the wiring structure 1.

As described above, according to the wiring structure 1 of the slide type electronic device of the present embodiment, the flat cable 11 constituting the harness 6 is provided in the space between the first and second slide members 2 and 3. A plurality of stacked wiring laminated portions 6b are wound around a pair of wiring guide mechanisms 4 and 5 so as to meander. As a result, the micro coaxial cable 14 constituting the flat cable 11 does not need to have a bending radius in the height direction of the space portion, and can have a bending radius in the width direction of the space portion. Therefore, the micro coaxial cable 14 can be used for the slide type electronic device 21, and the wiring structure 1 of the slide type electronic device having excellent bending resistance can be provided.
Further, since the wiring laminated portion 6b is urged and supported by the respective piece members 10 of the pair of wiring guide mechanisms 4 and 5, the slide hinge housing composed of the first and second slide members 2 and 3 is provided. Expansion and contraction of the cable portion 6 a due to opening and closing can be absorbed by the wiring guide mechanisms 4 and 5. Thereby, it is possible to provide the wiring structure 1 of the slide type electronic device that can prevent the cable portion 6a from sagging when the slide hinge housing is opened and closed.
Further, since the wiring laminated portion 6b is bent so as to meander, a point-symmetric wiring structure is obtained. For this reason, it is not necessary to change the cable length inside and outside the wiring laminated portion 6b, and the assembly of the electronic device wiring harness 6 can be simplified.
In addition, since the cable portion 6a is accommodated in the space portion between the first and second slide members 2 and 3 that are the housing of the slide hinge, it does not rub against other components when sliding, Connection reliability is improved.
Moreover, since the housing of the slide hinge and the harness 6 are integrated, handling is facilitated when the slide type electronic device 21 is incorporated, and productivity is improved.

A flat cable in which the wiring constituting the harness 6 of the present embodiment covers a plurality of micro coaxial cables 14 arranged in parallel with each other with a sheath (covering material) 15 to collectively cover the micro coaxial cables 14 Therefore, it is possible to provide the wiring structure 1 of the slide type electronic device having excellent transmission characteristics and noise resistance.
Further, since the micro coaxial cable 14 is arranged in the space portion along the direction in which the first slide member 2 and the second slide member 3 face each other, the micro coaxial cable 14 is connected to the space portion. The bending radius can be taken in the width direction, and jumping over the adjacent flat cable 11 can be prevented by the first slide member 2 and the second slide member 3.
Further, since the plurality of flat cables 11 are equal in length, the bending of the wiring laminated portion 6b can be suppressed when the wiring laminated portion 6b is bent so as to meander.

Since the wiring guide mechanisms 4 and 5 of the present embodiment are configured by the cylindrical piece member 10, the cable portion 6a (wiring laminated portion 6b) that follows the slide of the slide hinge housing by rotating the piece member 10 is used. The expansion and contraction can be smoothly biased and supported.
Further, since the radius of the cylindrical top member 10 is equal to or larger than the minimum bending radius of the wiring, the bending radius of the micro coaxial cable 14 that is the wiring constituting the cable portion 6a (wiring laminated portion 6) is set to be equal to or larger than the minimum bending radius. Can be secured. Thereby, since the micro coaxial cable 14 can be applied to the wiring structure 1 of the slide type electronic device, the wiring structure 1 of the slide type electronic device having excellent transmission characteristics and noise resistance can be provided.

  Since the slide type electronic device 21 of the present embodiment uses the wiring structure 1 of the slide type electronic device described above, the thin slide type electronic device 21 having excellent transmission characteristics and noise resistance can be provided.

  As described above, according to the wiring structure 1 of the slide type electronic device of the present embodiment, it is possible to provide the thin wiring structure 1 having excellent transmission characteristics and noise resistance and the slide type electronic device 21 using the same. it can.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in forming a flat cable of an ultrafine coaxial cable, a flat cable may be formed by flat knitting with a resin tape or resin fiber instead of the resin sheath.
Further, the moving guide members 7 constituting the wiring guide mechanisms 4 and 5 are provided on the main surface portions 2a and 3a of the first and second slide members 2 and 3, respectively. It is good also as a structure which formed integrally and made the main surface parts 2a and 3a flat. Thereby, the wiring structure 1 of a slide-type wiring apparatus with a small thickness can be provided.

FIG. 1 is a perspective view showing a slide type electronic apparatus according to the present embodiment. 2A and 2B show a wiring structure of the slide type electronic device of the present embodiment, FIG. 2A is a plan view of the case before the slide operation is closed, and FIG. 2B is a case during the slide operation. FIG. 2C is a plan view of the housing after the sliding operation is opened. FIG. 3 is a side view showing a wiring structure of the slide type electronic apparatus of the present embodiment. FIG. 4 shows the harness of this embodiment, FIG. 4 (a) is a plan view, FIG. 4 (b) is a perspective view, and FIG. 4 (c) is taken along the line AA 'in FIG. 4 (a). It is a corresponding cross-sectional schematic diagram. Fig.5 (a) is a cross-sectional schematic diagram of a flat cable, FIG.5 (b) is a top view of the connection part of a connector. FIG. 6 is a perspective view showing the slide type electronic apparatus of the present embodiment. FIG. 7 is a diagram illustrating a case of moving a casing of a mobile phone as an example of an electronic device. FIG. 8 is a diagram showing a wiring structure of a slide-type electronic device using an FPC as a conventional inter-casing wiring material.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Wiring structure (wiring structure) of a slide type electronic device, 2 ... 1st slide member, 2a ... Main surface part, 2b ... Bending part, 2c ... Opening part, 3. ..Second slide member, 3a ... main surface portion, 3b ... side surface portion, 3c ... opening portion, 4,5 ... wiring guide mechanism, 6 ... harness for wiring electronic equipment (harness ), 6a: cable portion, 6b: wiring laminated portion, 7: moving guide member, 7a ... guide shaft, 8 ... moving member, 9 ... biasing body, 10 ... -Top member, 11 ... Flat cable, 12, 13 ... Connector, 14 ... Ultra-fine coaxial cable, 15 ... Sheath (coating material), 16 ... Center conductor, 17 ... Inner insulation Body, 18 ... outer conductor, 19 ... jacket (outer coating), 20 ... gap, 21 ... sly Type electronic device, 22 ... lower case, 23 ... upper case, 100 ... (conventional) wiring structure of slide type electronic device, 101 ... first case, 102, ... Second housing, 110 ... FPC, H ... height between housings, W ... width of housing

Claims (5)

A wiring structure of a slide-type electronic device that supports a plurality of housings having circuits so as to be relatively movable and electrically connects the circuits between the housings by wiring,
A first slide member attached to the housing on one side;
A second slide member attached to the housing on the other side;
A harness having a plurality of wires and a connecting portion provided at an end of the wires and being routed between the first slide member and the second slide member;
A pair of wiring guide mechanisms provided on each of the first slide member and the second slide member and biasingly supporting the wiring;
The first slide member and the second slide member are attached to be relatively movable,
The pair of wiring guide mechanisms are movable relative to each other in a direction orthogonal to the relative movement direction;
A wiring laminated portion in which a plurality of wirings are stacked is wound around the pair of wiring guide mechanisms so as to meander and is bent in a space between the first slide member and the second slide member. A wiring structure for a slide-type electronic device, characterized in that it is housed.   The wiring is composed of at least a plurality of micro-coaxial cables and a resin coating material, and the micro-coaxial cables are formed by covering the plurality of micro-coaxial cables arranged in parallel with each other with the coating material. And the wiring laminated portion so that the micro coaxial cables are arranged along the direction in which the first slide member and the second slide member face each other in the space portion. The wiring structure for a slide-type electronic device according to claim 1, wherein:   The wiring structure of the slide electronic device according to claim 1, wherein the plurality of flat cables are of equal length.   The wiring structure of the slide type electronic device according to any one of claims 1 to 3, wherein the wiring guide mechanism includes at least a cylindrical piece member.   A plurality of housings having circuits are attached so as to be relatively movable by the wiring structure of the slide type electronic device according to any one of claims 1 to 4, and the circuits in these housings are electrically connected to each other. What is claimed is: 1. A slide-type electronic device characterized by being made.

Images