JP5390546B2 - Internal connection structure, flat collective conductor, keyboard device, electronic device, and portable personal computer - Google Patents

Description

  The present invention relates to an internal connection structure of an electronic device, a flat collective conductor, a keyboard device, an electronic device, and a portable personal computer.

  Flexible flat assembly conductors (hereinafter simply referred to as “flat assembly conductors”), such as flexible printed wiring boards and membrane wiring boards, in which a plurality of conductive wires are formed on a flexible substrate by thick film conductors or thin film conductors, Since it is a thin and lightweight wiring material having a relatively high degree of freedom in shape, it is used as an internal wiring material for electrically connecting components of an electronic device within a casing.

  For example, in an electronic still camera described in Patent Document 1, a recording / reproducing apparatus, a lens unit, and a strobe unit are electrically connected by a flexible wiring board. In the notebook personal computer described in Patent Document 2, the electronic circuit board in the system housing and the keyboard unit are electrically connected by a flexible printed wiring board having a slit formed in the longitudinal direction.

JP 2000-200993 A JP 2007-80929 A

  When a model of an electronic device is changed, not only the appearance and performance but also the arrangement of two members to be electrically connected with a flat aggregate conductor are often changed. For this reason, when the model is changed, the overall shape and size of the flat aggregate conductor are often redesigned. However, the redesign of flat assembly conductors increases the development period of new model electronic devices.

  The present invention has been made in view of the above circumstances, and an internal connection structure that can eliminate the need for a design change at the time of a model change of an electronic device, and a flat set that can constitute the internal connection structure It is an object of the present invention to provide a conductor, a keyboard device provided with the flat collective conductor, an electronic device having the internal connection structure, and a portable personal computer having the keyboard device.

The internal connection structure of the present invention is an internal connection structure that electrically connects a plurality of members constituting an electronic device inside the electronic device, and is electrically connected to one member of the plurality of members. A flexible flat collective conductor comprising a strip-shaped first region having a connection end to be connected and a strip-shaped second region extending in a direction intersecting the longitudinal direction of the first region; The region is formed with a variable loop-shaped first region inward turning portion that changes the extending direction of the first region by inverting the front and back of the first region, and the second region has the are formed second region redirecting section inverts the variable loop-shaped to convert the extending direction of the second region the front and back of the second region, the second region redirecting portion before SL is formed the three-dimensional shape of the second region, electrically connecting the connection end to said one member In comprising a shape temporary fixing part for temporarily fixing at the ready to displace the connection end, wherein the shape temporary fixing unit is perpendicular from one end of the second region in the longitudinal direction of the second region It has a developed shape extending in two directions and is deformed into a three-dimensional loop shape, and the second region is deformed into a state where it is passed through a shape temporary fixing portion deformed into the three-dimensional loop shape. The second region inward direction changing portion is formed at an end of the second region on the shape temporary fixing portion side .

The flat collective conductor of the present invention is a flexible flat collective conductor capable of constituting an internal connection structure for electrically connecting a plurality of members constituting an electronic device inside the electronic device, A band-shaped first region having a connection end electrically connected to one member of the plurality of members, and a band-shaped first region extending from the first region in a direction intersecting the longitudinal direction of the first region. 2 area and, before Symbol shaped temporary fixing part for temporarily fixing the solid shape capable of displacing the connection end state when electrically connecting the connection ends to the one member in the second region And each of the first region and the second region has a variable loop-shaped first that reverses the front and back of the first region to the first region to change the extending direction of the first region. An in-region turning portion is formed, and the front and back of the second region are placed on the second region. The shape has a length that allows the internal connection structure to be formed in a state in which a variable loop-shaped second region inward direction changing portion that changes the extension direction of the second region is formed, and the shape is temporarily fixed. parts are pre Symbol temporary fixable der the three-dimensional shape of the second region second region turning portion is formed is, two directions perpendicular from one end of the second region in the longitudinal direction of the second region The second region is deformed into a state of being passed through the shape temporary fixing portion deformed into the three-dimensional loop, and has a developed shape extending to the three-dimensional loop. the second region turning portion, said that are formed on the end portion of the shaped temporary fixing portion in the second region, it is characterized.

In the keyboard device of the present invention, a plurality of key tops are arranged on a base plate via a switch sheet, and the switch sheet is provided with a connecting portion made of a flexible flat aggregate conductor, or a flexible flat aggregate In a keyboard device to which a connection portion made of a conductor is connected and is electrically connected to a predetermined member inside the electronic device by the connection portion, the connection portion has a connection end electrically connected to the predetermined member. wherein a first portion of the web, the strip-shaped second region extending in a direction intersecting the first region and the longitudinal direction of the first region, the pre-Symbol three-dimensional shape of the second region to the predetermined member having and a shape temporary fixing part for temporarily fixing at the ready to displace the connection end when electrically connecting the connection end, each of the first region and the second region, The first region is formed with a variable loop-shaped first region inward turning portion that reverses the extending direction of the first region by inverting the front and back of the first region, and the second region is formed in the second region. The internal connection structure has a length that can be configured in a state where a variable loop-shaped second region inward direction changing portion that changes the extending direction of the second region by inverting the front and back of the second region, shaped temporary fixing unit, before Symbol temporary fixable der the three-dimensional shape of the second region second region turning portion is formed is, perpendicular from one end of the second region in the longitudinal direction of the second region And has a developed shape extending in two directions and is deformed into a three-dimensional loop shape, and the second region is deformed into a state of being passed through a shape temporary fixing portion deformed into the three-dimensional loop shape. The second region inward turning portion is located at the end of the shape temporary fixing portion side in the second region. That have been made, characterized in that.

  The electronic device of the present invention has the internal connection structure of the present invention. The portable personal computer of the present invention includes the keyboard device of the present invention.

  In the internal connection structure of the present invention, the first region in-direction turning portion and the second region can be adjusted at the time of connection work in which a plurality of members constituting the electronic device are electrically connected by the flat assembly conductor. Since the direction change portion is formed in the flat collective conductor, by adjusting the diameter of at least one of the direction change portion in the first region and the direction change portion in the second region, The position of the connection end can be changed according to the position of the member to be connected. For this reason, once the shape and size of the first region, the second region, and the shape temporary fixing portion in the flat collective conductor are designed to a predetermined shape and size, the flat area is changed when the model of the electronic device is changed. It becomes possible to eliminate the need to change the design of the mold assembly conductor.

FIG. 1 is an exploded perspective view schematically showing an example of a portable personal computer that is an electronic apparatus including a keyboard device according to Embodiment 1 of the present invention. FIG. 2 is an enlarged plan view schematically showing the keyboard device shown in FIG. FIG. 3 is a bottom view schematically showing the keyboard device shown in FIG. FIG. 4 is a plan view schematically showing the developed shape of the switch sheet of the keyboard device shown in FIG. FIG. 5 is a perspective view schematically showing an example of switch sheet deformation processing performed prior to mounting the keyboard device shown in FIG. 1 on the PC body. FIG. 6 is a perspective view schematically showing an example of an internal connection structure by a connection portion in the switch sheet shown in FIG. 4. FIG. 7 is a plan view schematically showing an example of a flat aggregated conductor that can constitute the internal connection structure according to the second embodiment of the present invention. FIG. 8 is a perspective view schematically showing an example of an internal connection structure formed inside the portable PC when the keyboard device including the flat collective conductor shown in FIG. 7 is mounted on the PC body of the portable PC. FIG.

  Hereinafter, embodiments of the internal connection structure, the flat collective conductor, the keyboard device, the electronic device, and the portable personal computer according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the following embodiment.

(Embodiment 1)
FIG. 1 is an exploded perspective view schematically showing an example of a portable personal computer (hereinafter abbreviated as “portable PC”), which is an electronic apparatus including the keyboard device according to the first embodiment of the present invention. FIG. 2 is an enlarged plan view schematically showing the keyboard device shown in FIG. FIG. 3 is a bottom view schematically showing the keyboard device shown in FIG.

  A portable PC 1 shown in FIG. 1 includes a personal computer main body (hereinafter abbreviated as “PC main body”) 2, a display device 3 that functions as an output device of the PC main body 2, and a keyboard that functions as an input device of the PC main body 2. Device 4.

  The PC main body 2 includes a box-shaped casing 21 and an electronic circuit board 22 accommodated in the casing 21. An opening 21 a having a shape and size corresponding to the shape and size of the keyboard device 4 in plan view is provided on the upper end side of the housing 21. On the electronic circuit board 22, a central processing unit (CPU), a chip set, a memory (all not shown), a CPU cooler 22a, and the like are mounted or mounted.

  The display device 3 includes a flat display panel such as a liquid crystal display panel, and is rotatably provided on the rear end portion of the housing 21. The portable PC 1 is in a closed state in which the keyboard device 4 is covered with the display device 3 when the display device 3 is rotated to the keyboard device 4 side until the display device 3 is substantially parallel to the keyboard device 4. . Further, when the display device 3 is rotated to the rear side of the PC main body 2, the keyboard device 4 is exposed and opened.

  As shown in FIG. 1, FIG. 2, or FIG. 3, the keyboard device 4 includes a key top group 41, a switch sheet 42, and a base plate 43 (see FIG. 3) on which the key top group 41 and the switch sheet 42 are mounted. And a cover member 44 covering the upper surface side of the base plate 43 with each key top exposed. The key top group 41 includes a plurality of key tops arranged in a predetermined pattern. In addition, the switch sheet 42 is disposed below each key top constituting the key top group 41 and is closed when the corresponding key top is pressed (not shown in FIGS. 1 to 3). ) And a connection portion 42 </ b> B for electrically connecting each switch unit to the connector 5. Each key top is disposed on the base plate 43 via the switch sheet 42.

  Further, the keyboard device 4 is arranged at a substantially central portion of the key top group 41, and the pointing stick 45 penetrating the base plate 43 and the pointing stick 45 supported from the back side of the base plate 43 are operated. It also has a sensor module 46 (see FIG. 3) that sometimes generates a predetermined electrical signal. Furthermore, it has a flat collective conductor (not shown) for electrically connecting the sensor module 46 and a predetermined connector on the electronic circuit board 22. The keyboard device 4 is mounted on the PC main body 2 in a state where the opening 21 a of the housing 21 is closed.

  In the portable PC 1, the connector 5 for electrically connecting the switch sheet 42 and the electronic circuit board 22 is mounted on the electronic circuit board 22. As this connector 5, a connector having an arbitrary configuration such as a ZIF (Zero Insertion Force) socket can be used. The position of the connector 5 can be appropriately selected within the PC main body 2. One end of the connection portion 42 </ b> B of the switch seat 42 is engaged with the connector 5.

  That is, the connection part 42B of the switch sheet 42 constitutes an internal connection structure that electrically connects the switch sheet 42 and the connector 5 inside the portable PC 1. Hereinafter, with reference to FIGS. 4 to 6, the internal connection structure by the connection portion 42 </ b> B will be described in detail.

  FIG. 4 is a plan view schematically showing the developed shape of the switch sheet of the keyboard device shown in FIG. FIG. 5 is a perspective view schematically showing an example of switch sheet deformation processing performed prior to mounting the keyboard device shown in FIG. 1 on the PC body. FIG. 6 is a perspective view schematically showing an example of the internal connection structure by the connection portion in the switch sheet shown in FIG.

  As shown in FIG. 4, the switch seat 42 is formed integrally with the switch unit area 42A in which the predetermined number of switch units SU described above are arranged, and the switch unit area 42A, and beside the switch unit area 42A. The above-described connecting portion 42B extending. And the connection part 42B is extended in the direction which cross | intersects the 1st area | region 42B1 which has the connection end 42a connected to the connector 5 (refer FIG. 1), and the longitudinal direction of this 1st area | region 42B1 from 1st area | region 42B1. A second region 42B2 and a shape temporary fixing part 42B3 for temporarily fixing the three-dimensional shape of the second region 42B2 are provided. The switch sheet 42 is constituted by, for example, a membrane wiring board.

  Each of the first region 42B1, the second region 42B2, and the shape temporary fixing portion 42B3 in the connection portion 42B has a strip shape. The first region 42B1 is positioned substantially parallel to the short axis of the switch unit region 42A with the connection end 42a facing the extended line side of the long axis of the switch unit region 42A. The second region 42B2 extends in one direction orthogonal to the first region 42B1 from the opposite end side to the connection end 42a in the first region 42B1. The shape temporary fixing portion 42B3 extends from one end side of the second region 42B2 in two directions orthogonal to the longitudinal direction of the second region 42B2. The transition point from the second region 42B2 to the shape temporary fixing portion 42B3 and the periphery thereof have a skirt shape that becomes wider toward the shape temporary fixing portion 42B3 from the second region 42B2.

  In order to electrically connect each switch unit SU in the switch unit region 42A to the connector 5, a predetermined number of conducting wires C are connected to the shape temporary fixing portion 42B3, the second region 42B2, and the first region 42B1 from each switch unit SU. Then, it reaches the connection end 42a. However, the conducting wire C is not provided in the region R1 from the opposite end of the shape temporary fixing portion 42B3 to the end on the switch unit region 42A side to the transition point of the second region 42B2. This region R1 is hereinafter referred to as “joining region R1”. In addition, a region R2 where the conducting wire C is not provided is also formed in the longitudinal center of the second region 42B2. This region R2 has a strip shape protruding in the same direction as the extending direction of the first region 42B1, and its longitudinal axis is substantially parallel to the longitudinal axis of the second region 42B2. The region R2 assists the shape temporary fixing portion 42B3 and the second region 42B2 to be deformed into a predetermined shape. Hereinafter, the region R2 is referred to as “guide region R2”.

  As shown in FIG. 5, in the deformation process of the switch sheet 42, the shape temporary fixing portion 42B3 is curved to the back surface side of the base plate 43, and the bonding region R1 is fixed to the back surface of the base plate 43 with the bonding material 6 such as double-sided tape. Thus, the shape temporary fixing portion 42B3 is formed into a three-dimensional loop shape. By this deformation process, the front and back of the shape temporary fixing portion 42B3 are reversed, and the extending direction is changed by approximately 180 °.

  Further, in the above deformation process, the first region 42B1 and the second region 42B2 are drawn out from the gap between the shape temporary fixing portion 42B3 and the back surface of the base plate 43 toward the center in the longitudinal direction of the keyboard device 4, and the second region The variable loop-shaped second region inward direction changing portion TA2 capable of adjusting the diameter is formed on the shape temporary fixing portion 42B3 side of the guide region R2 at 42B2. The second area inward direction changing portion TA2 inverts the front and back of the second area 42B2 and changes the extending direction thereof by approximately 180 °. When the second region inward direction changing portion TA2 is formed, one end in the short direction in the guide region R2 extends over the entire length or partially on the inner surface of the shape temporary fixing portion 42B3 deformed into a three-dimensional loop shape. Abut.

  Note that the bonding region R1 may be fixed to the base plate 43 by the bonding material 6 either before or after the formation of the second region inward turning portion TA2. When the bonding region R1 is fixed to the base plate 43 and the second region inward turning portion TA2 is formed, the second region 42B2 is temporarily fixed in a state where the diameter of the second region inward turning portion TA2 is variable. . That is, the three-dimensional shape of the second region 42B2 is temporarily fixed.

  As shown in FIG. 6, after the above-described deformation process, the connection end 42a in the first region 42B1 is engaged with the connector 5 in the PC main body 2 (see FIG. 1), and then the keyboard device 4 is attached to the PC main body 2. By mounting, the internal connection structure CS1 by the switch sheet 42 is formed in the portable PC 1 (see FIG. 1). At this time, the first region 42B1 is curved toward the connector 5, and a variable loop-shaped first region inward turning portion TA1 is formed. This first area inward direction changing portion TA1 inverts the front and back of the first area 42B1 and changes its extending direction by approximately 180 °. The longitudinal axis At1 of the first area inward turning portion TA1 is substantially perpendicular to the longitudinal axis At2 of the second area inward turning portion TA2.

  In the keyboard device 4 having the switch sheet 42 that can constitute the internal connection structure CS1, the conductor C is broken by designing each of the first region 42B1 and the second region 42B2 to be long in advance. When the connection end 42a is connected to the connector 5 and the keyboard device 4 is mounted on the PC main body 2, the connection end 42a is connected to the longitudinal direction and the short direction of the keyboard device 4 without causing cracks in the lead wires C. It is possible to displace each of these.

  That is, the position of the connection end 42a is displaced in the short direction of the keyboard device 4 by designing the length of the first region 42B1 in advance so that the diameter of the first region inward direction changing portion TA1 can be adjusted. It becomes possible. Further, the position of the connection end 42a is displaced in the longitudinal direction of the keyboard device 4 by designing the length of the second region 42B2 in advance so that the diameter of the second region inward direction changing portion TA2 can be adjusted. Is possible.

  For this reason, even if the position of the connector 5 is changed by a model change of the portable PC 1, it is possible to cope with the model change without changing the shape and size of at least the connection portion 42B in the switch seat 42. Once the shape and size of each of the first region 42B1, the second region 42B2, and the shape temporary fixing portion 42B3 in the connecting portion 42B are designed to a predetermined shape and size, the model is changed when the portable PC 1 is changed. It becomes possible to eliminate the need to change the design of the connecting portion 42B. That is, once the connection portion 42B is designed, it is possible to configure an internal connection structure that can be applied to various types of portable PCs. As a result, the development period of the new model portable PC can be shortened.

  Further, in the internal connection structure CS1, as a result of the three-dimensional shape of the second region 42B2 being temporarily fixed by the shape temporary fixing portion 42B3, when the keyboard device 4 is mounted on the PC body 2, the connection portion 42B is connected to the keyboard device 4 and the electronic device. It is easy to fit in a desired place in the gap with the circuit board 22. Further, even when a tension is applied to the connection portion 42B during the mounting operation of the keyboard device 4, the tension is absorbed by the first region inward direction changing portion TA1 and the second region inward direction changing portion TA2, and the connection end 42a from the connector 5 is absorbed. Can be prevented from coming off. For these reasons, according to the internal connection structure CS1, the keyboard device 4 can be mounted on the PC main body 2 with good workability without causing the switch sheet 42 to be disconnected.

  Moreover, in the connection part 42B, since the transition part from the 2nd area | region 42B2 to the shape temporary fixing part 42B3, and its periphery show the above-mentioned footing shape, the mechanical strength of the said transition part and its periphery is compared with another location. It is high. Therefore, even when the second region 42B2 is deformed again so that the first region 42B1 comes close to the shape temporary fixing portion 42B3 after the connection portion 42B is deformed into the shape of FIG. The second region 42B2 can be easily slid in a direction substantially parallel to the longitudinal axis by the restoring force generated in the periphery thereof. Also from this point, according to the internal connection structure CS1, the keyboard device 4 can be mounted on the PC body 2 with good workability.

  Furthermore, when deformed into a three-dimensional loop shape or after being deformed, one end in the short direction in the guide region R2 is in contact with the entire length or part of the shape region temporarily fixing portion 42B3. Since the deformation of each of the fixing portion 42B3 or the second region 42B2 is assisted, the deformation processing of the shape temporary fixing portion 42B3 can be easily performed, and the second region 42B2 after the second region inward turning portion TA2 is formed has its longitudinal direction. Easy to slide in a direction substantially parallel to the axis. Also from this point, according to the internal connection structure CS1, the keyboard device 4 can be mounted on the PC body 2 with good workability.

(Embodiment 2)
In the internal connection structure of the present invention, the shape temporary fixing portion can be constituted by a slit formed in the first region or the second region of the flat aggregate conductor. FIG. 7 is a plan view schematically showing an example of a flat aggregated conductor that can constitute the internal connection structure according to the second embodiment of the present invention. FIG. 8 schematically shows an example of an internal connection structure formed inside the portable PC when the keyboard device having the flat aggregate conductor shown in FIG. 7 is mounted on the PC body of the portable PC. It is a perspective view shown.

  A flat collective conductor 142 shown in FIG. 7 is a switch sheet (hereinafter referred to as “switch sheet 142”) constituting the keyboard device. The switch sheet 142 includes a switch unit region 142A in which a predetermined number of switch units SU are arranged, and a connection part 142B that is formed integrally with the switch unit region 142A and extends to the side of the switch unit region 142A. For example, a membrane wiring board. The connection part 142B has a first region 142B1 having a connection end 142a connected to a connector (not shown) in the PC body, and extends from the first region 142B1 in a direction intersecting the longitudinal direction of the first region 142B1. Second region 142B2 to be configured, and shape temporary fixing portion 142B3 for temporarily fixing the three-dimensional shape of second region 142B2.

  Each of the first region 142B1 and the second region 142B2 has a strip shape. The first region 142B1 is located substantially parallel to the longitudinal axis of the switch unit region 142A. The second region 142B2 extends in a direction intersecting the longitudinal direction of the first region 142B1 from the opposite end side to the connection end 142a in the first region 142B1, specifically, one direction orthogonal to the first region 142B1. The shape temporary fixing portion 142B3 is formed of a slit provided in a substantially central portion of the second region 142B2 and extending in the longitudinal direction of the second region 142B2. The length of the shape temporary fixing portion 142B3 is longer than the width in the short direction in the first region 142B1. In order to electrically connect each switch unit SU in the switch unit region 142A to the connector, a predetermined number of conductive wires C reach the connection end 142a from each switch unit SU through the second region 142B2 and the first region 142B1.

  As shown in FIG. 8, in the internal connection structure CS2 by the switch seat 142, two second area inward direction changing portions TA21 and TA22 that can be adjusted in diameter are formed in the second area 142B2. The second area inner direction change part TA21 is formed at the end of the second area 142B1 on the switch unit area 142A side, and the second area inner direction change part TA22 is on the first area 142B1 side in the second area 142B2. Formed at the end. Each of the second area direction changing portions TA21, TA22 inverts the front and back of the second area 142B2 and changes the extending direction thereof by approximately 180 °. The longitudinal axis At21 of the second area inward turning portion TA21 and the longitudinal axis At22 of the second area inward turning portion TA22 are substantially parallel to each other.

  Further, the end portion on the connection end 142a side in the first region 142B1 is passed from the base plate 43 side to the shape temporary fixing portion 142B3, and is drawn out to the longitudinal center portion side of the keyboard device 140. The connection end 142a is engaged with a connector 150 mounted on an electronic circuit board (not shown) in the PC body in a state in which the connection end 142a faces in the direction along the longitudinal axis of the keyboard device 140.

  At this time, a variable loop-shaped first area inward direction changing portion TA11 whose diameter can be adjusted is formed at the end of the first area 142B1 on the second area 142B2 side. This first area inward direction changing portion TA11 inverts the front and back of the first area 142B1 and changes its extending direction by approximately 180 °. The longitudinal axis At11 of the first area inward turning portion TA11 is substantially perpendicular to each of the longitudinal axes At21, At22 of the second area inward turning portions TA21, TA22. The shape temporary fixing portion 142B3 temporarily fixes the first region 142B1 in a state where the diameter of the first region inward direction changing portion TA11 is variable. That is, the three-dimensional shape of the first region 142B1 is temporarily fixed. Of the constituent elements shown in FIG. 8, those common to the constituent elements shown in FIG. 6 are given the same reference numerals as those used in FIG.

  In the keyboard device 140 including the switch sheet 142 that can constitute the internal connection structure CS2, the conductor C is broken by designing each of the first region 142B1 and the second region 142B2 to be long in advance. Without connecting the connection end 142a to the connector 150 and when the keyboard device 140 is mounted on the PC body, the connection end 142a is connected in the longitudinal direction and the short direction of the keyboard device 140. Each can be displaced.

  That is, the position of the connection end 142a is displaced in the longitudinal direction of the keyboard device 140 by designing the length of the first region 142B1 in advance to be adjustable in the diameter of the first region inward direction changing portion TA11. Is possible. In addition, the length of the second area 142B2 is designed to be long in advance so that the diameters of the second area inward direction changing portions TA21 and TA22 can be adjusted, so that the connection end 142a is positioned in the short direction of the keyboard device 140. It can be displaced.

  Therefore, even if the position of the connector 150 is changed due to a model change of the portable PC, at least the connection portion 142B in the switch seat 142 can be adapted to the model change without changing its shape and size. . Once the shape and size of each of the first region 142B1, the second region 142B2, and the shape temporary fixing portion 142B3 in the connection portion 142B are designed to a predetermined shape and size, the relevant shape is changed when the model of the portable PC is changed. It becomes possible to eliminate the need to change the design of the connecting portion 142B. That is, once the connecting portion 142B is designed, it is possible to configure an internal connection structure that can be applied to various types of portable PCs. As a result, the development period of the new model portable PC can be shortened.

  In the internal connection structure CS2, as a result of temporarily fixing the three-dimensional shape of the first region 142B1 by the shape temporary fixing portion 142B3, the electronic circuit on which the connector 150 is mounted when the keyboard device 140 is mounted on the PC main body. It is easy to fit the connecting portion 142B in a desired place in the gap between the board and the keyboard device 140. Even if tension is applied to the connection part 142B during the mounting operation of the keyboard device 140, the tension is absorbed by the first area inward direction changing part TA11 and the second area inward direction changing parts TA21, TA22, and the connection end from the connector 150 The disconnection of 142a can be prevented. For these reasons, according to the internal connection structure CS2, the keyboard device 140 can be mounted on the PC main body with good workability without causing the switch sheet 142 to be disconnected.

  While the present invention has been described with reference to the embodiment, the present invention is not limited to the above-described embodiment. For example, the switch seat according to the present invention is not limited to one in which the switch unit region and the connection portion are integrally formed, and may be one in which the switch unit region and the connection portion are formed separately. When the switch unit region and the connection portion are formed separately from each other, is the connection portion formed of the flat aggregate conductor of the present invention, and one end of the connection portion is electrically connected to the switch unit region via the connector? The switch unit region is electrically connected by a conductive bonding material such as a conductive adhesive.

  The flat collective conductor according to the present invention includes a first region having a length capable of forming a first region inward turning portion, and a second region inward turning portion like the connection portion of the switch sheet described in the embodiment. Flexible flat assembly such as a membrane wiring board or a flexible printed wiring board having a second region having a length capable of forming a shape, and a shape temporary fixing portion capable of temporarily fixing the three-dimensional shape of the first region or the second region It is a conductor. The structure and overall shape of the flat aggregate conductor can be appropriately selected according to the application. From the viewpoint of cost reduction, the membrane wiring board is preferable to the flexible printed wiring board. In addition, when the gap between the members electrically connected by the flat assembly conductor is narrow, the membrane wiring board is more flexible than the flexible printed wiring board. It is preferable to use a plate.

  The developed shape of each of the first region and the second region in the flat aggregate conductor is not limited to the shape shown in FIGS. 4 and 7, and any shape can be used as long as it is a belt shape. Further, the extending direction of the second region with respect to the first region is not limited to the direction orthogonal or substantially orthogonal to the longitudinal direction, and may be any direction as long as the direction intersects the longitudinal direction of the first region. it can. And if the direction change part formed in a flat type | mold collective conductor is the shape of a three-dimensional variable loop which can adjust a diameter, the extension direction of a 1st area | region or the extension direction of a 2nd area | region will be 180 degrees or substantially. Not only the shape which changes 180 degrees but it can also be set as the shape which changes the said extending direction into a desired angle.

  The shape temporary fixing portion for temporarily fixing the three-dimensional shape of the first region in which the first region inward turning portion is formed or the three-dimensional shape of the second region in which the second region inward turning portion is formed is a flat aggregate conductor It can also be a separate member. For example, a highly-bridge-shaped temporary fixing portion configured separately from a flat aggregate conductor is provided in a desired member in an electronic device, and the shape temporary fixing portion and a member to which the shape temporary fixing portion is attached are provided. By passing the first region or the second region of the flat assembly conductor through the gap, the three-dimensional shape of the region can be temporarily fixed.

  The internal connection structure of the present invention is not only applied to the internal connection structure of a portable PC, but also various electronic devices such as home electronic devices, office electronic devices, industrial armature devices, remote controllers and operation panels of these devices. It can be applied to the internal connection structure of equipment. Various modifications, decorations, combinations, and the like are possible for the present invention other than those described above.

1 Electronic equipment (portable PC)
2 PC body 3 Display device 4,140 Keyboard device 41 Key top group 42,142 Switch sheet 42A, 142A Switch unit area 42B, 142B Connection part 42B1, 142B1 First area 42B2, 142B2 Second area 42B3, 142B3 Shape temporary fixing part 42a, 142a Connection end 43 Base plate 44 Cover member 5,150 Connector 6 Bonding material TA1, TA11 First area inward turning part TA2, TA21, TA22 Second area inward turning part

Claims (11)

An internal connection structure for electrically connecting a plurality of members constituting an electronic device inside the electronic device,
A strip-shaped first region having a connection end electrically connected to one member of the plurality of members, and a strip-shaped second region extending in a direction intersecting the longitudinal direction of the first region. Including a flexible flat assembly conductor with
In the first region, a variable loop-shaped first region inward direction changing portion that reverses the front and back of the first region and changes the extending direction of the first region is formed,
In the second region, a variable loop-shaped second region inward turning portion that reverses the front and back of the second region and changes the extending direction of the second region is formed,
Before SL dimensional shape of the second region in which the second region turning portion is formed, the temporary in capable of displacing the connection end state when electrically connecting the connection end to said one member It has a shape temporary fixing part for fixing,
The shape temporary fixing portion has a developed shape extending from one end side of the second region in two directions orthogonal to the longitudinal direction of the second region and is deformed into a three-dimensional loop shape,
The second region is deformed into a state of being passed through the shape temporary fixing portion deformed into the three-dimensional loop shape,
The second region inward turning portion is formed at the end of the shape temporary fixing portion side in the second region ,
An internal connection structure characterized by that. The first region inward direction changing portion is formed such that the position of the connecting end can be advanced and retracted in the extending direction of the first region forming the first region inward direction changing portion,
The second region inward direction changing portion is formed such that the position of the connection end can be advanced and retracted in the extending direction of the second region forming the second region inward direction changing portion,
And moving direction position of the connection end according to the first region turning portion, the moving direction of the position of the connection end according to the second region turning portion, wherein the direction der Rukoto crossing The internal connection structure according to claim 1. Migration positions and peripheral to the second from said area shape temporary fixing unit, according to claim 1 or, characterized in that exhibits footings from the second region becomes wider toward the free-shaped temporary fixing portion 2. The internal connection structure according to 2. Said flat set conductors, interconnect structure according to any one of claims 1-3, wherein the plurality of switch units are switch sheet further comprising a switch unit regions arranged. A flexible flat assembly conductor capable of constituting an internal connection structure for electrically connecting a plurality of members constituting an electronic device inside the electronic device,
A band-shaped first region having a connection end electrically connected to one member of the plurality of members;
A belt-like second region extending from the first region in a direction intersecting the longitudinal direction of the first region;
And shape temporary fixing part for temporarily fixing the previous SL capable of displacing the connection end state when electrically connecting the connection end to said one member a three-dimensional shape of the second region,
With
Each of the first region and the second region is a variable loop-shaped first region inward direction changing unit that changes the extending direction of the first region by inverting the front and back of the first region to the first region. The internal connection structure is formed in a state where a variable loop-shaped second region inward turning portion is formed in the second region to reverse the front and back of the second region to change the extending direction of the second region. Have a length that can constitute
Wherein the shape temporary fixing unit, before Symbol temporary fixable der the three-dimensional shape of the second region second region turning portion is formed is, the longitudinal direction of the second region from one end of the second region It has a developed shape extending in two orthogonal directions and has been transformed into a three-dimensional loop,
The second region is deformed into a state where it is passed through the shape temporary fixing portion deformed into the three-dimensional loop shape,
It said second region redirecting section, that is formed at an end of the shape temporarily fixing portion in said second region,
A flat assembly conductor characterized by the above. Migration positions and peripheral to the second from said area shape temporary fixing section to claim 5, characterized in that exhibits skirt shape which is wider toward from said second region to said shape temporary fixing portions The flat assembly conductor described. The flat assembly conductor according to claim 5 or 6 , wherein the flat assembly conductor further comprises a switch unit region in which a plurality of switch units are arranged. A plurality of key tops are arranged on the base plate via the switch sheet, and the switch sheet is provided with a connection portion made of a flexible flat aggregate conductor or connected to a connection portion made of a flexible flat aggregate conductor. In the keyboard device that is electrically connected to a predetermined member inside the electronic device by the connecting portion,
The connecting portion is
A band-shaped first region having a connection end electrically connected to the predetermined member;
A belt-like second region extending from the first region in a direction intersecting the longitudinal direction of the first region;
And shape temporary fixing part for temporarily fixing the previous SL capable of displacing the connection end state when electrically connecting the connection terminal to the predetermined member a three-dimensional shape of the second region,
With
Each of the first region and the second region is a variable loop-shaped first region inward direction changing unit that changes the extending direction of the first region by inverting the front and back of the first region to the first region. The internal connection structure is formed in a state where a variable loop-shaped second region inward turning portion is formed in the second region to reverse the front and back of the second region to change the extending direction of the second region. Have a length that can constitute
Wherein the shape temporary fixing unit, before Symbol temporary fixable der the three-dimensional shape of the second region second region turning portion is formed is, the longitudinal direction of the second region from one end of the second region It has a developed shape extending in two orthogonal directions and has been transformed into a three-dimensional loop,
The second region is deformed into a state of being passed through the shape temporary fixing portion deformed into the three-dimensional loop shape,
It said second region redirecting section, that is formed at an end of the shape temporarily fixing portion in said second region,
A keyboard device characterized by that. The keyboard device according to claim 8 , wherein the connection portion is provided on the switch sheet.   An electronic apparatus comprising the internal connection structure according to claim 1. A portable personal computer comprising the keyboard device according to claim 8 .

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