JP4338535B2 - Electronic device having flexible wiring member - Google Patents

Description

  The present invention relates to an electronic device in which a moving member is movably provided, for example, an in-vehicle electronic device, and particularly stress is concentrated locally on a wiring member that deforms following the movement of the moving member. The present invention relates to electronic devices that can be prevented.

  Some electronic devices for in-vehicle use are provided with a moving member having an operation member and a display member on the front surface of the device main body, and the moving member moves forward from the front surface of the device main body.

The inside of the movable member, the liquid crystal display panel that functions as a switch or other input device and tables radical 113 material to be operated by the operating member, to further have a built-in lighting member, the circuit inside of the device body And the inside of the moving member must be electrically connected. Therefore, a flexible flat cable is used as a wiring member for connecting the apparatus main body and the moving member.

  As the flat cable routing structure, the presence of the flat cable does not hinder the movement of the moving member, and when the moving member moves, excessive stress is locally concentrated on the flat cable to cause disconnection, etc. It is necessary that no failure occurs.

  Therefore, in Patent Document 1 below, a shaft-shaped guide member facing the flat cable is provided in a routing portion of the flat cable, and when the moving member moves, the flat cable is placed on the surface of the guide member. An invention is disclosed that prevents bending force from acting on a flat cable by being deformed so as to be wound.

Further, in Patent Document 2 below, a flat cable drawn out from a connector is sandwiched between a substrate and a cylindrical member, and is deformed so that the flat cable is wound around the cylindrical member. An invention for preventing the bending force from acting is disclosed.
JP 2002-217563 A JP 2000-208972 A

  The thing of the said patent document 1 or the patent document 2 requires many parts number in order to provide a shaft and a cylindrical member in an apparatus main body. If the diameter of the shaft or the cylindrical member is small, the curvature radius of the curved portion of the flat cable wound around the shaft or the cylindrical member becomes too small, and excessive bending stress acts locally on the flat cable. . On the other hand, if the diameter of the shaft or the cylindrical member is increased in order to increase the curvature radius of the flat cable, a large space is required for the shaft or the cylindrical member in the device main body, and the device main body becomes large. Become.

  The present invention is for solving the above-described conventional problems, and when the moving member moves, an excessive stress is not applied to the wiring member that is curved following the movement, and a large space is required. The object is to provide an electronic device with a simple structure.

The present invention includes an apparatus main body, a moving member provided movably on the apparatus main body, a connector provided on the apparatus main body, and a flexible wiring member that connects the connector and the moving member. In the electronic equipment that has
A support member fixedly installed on the device main body is provided to face the wiring member extending from the connector, and a portion of the support member that contacts the curved deformation of the wiring member is accompanied by the bending of the wiring member. contraction deformable der Te is,
The wiring member is provided with a reinforcing plate at an insertion portion to the connector, and the support member is opposed to a tip portion of the reinforcing plate on the side away from the connector. .

In the electronic apparatus, when the wiring member is bent following the movement of the moving member and hits the supporting member, the supporting member is contracted and deformed by the pressing force of the wiring member. Therefore, it is possible to prevent excessive stress due to bending from being concentrated locally on the wiring member. In addition, since the support member gives an elastic return force to the wiring member, the wiring member does not bend with an extremely small radius of curvature in the portion that is in contact with the supporting member, and even if the supporting member is not made larger than necessary, It is possible to prevent excessive stress concentration on the wiring member.

  The moving member according to the present invention includes a movable panel movably provided on the front surface of an in-vehicle electronic device, a drive device for various recording media protruding forward from the inside of the device body, and a disk in the disk drive device. Any of various members that are movably equipped in a general electronic device, such as an optical pickup or other head that moves along the recording surface, may be used.

  When the reinforcing plate is provided, the flexible wiring member can be easily inserted into the connector. In this case, when a bending force acts on the wiring member, the wiring member hits the leading edge of the reinforcing plate, and excessive stress tends to act locally. However, if the support member is opposed to the tip portion of the reinforcing plate, the wiring member can be prevented from being bent at the tip portion.

  In the present invention, the wiring member may be sandwiched between a substrate on which the connector is mounted and the support member.

  If comprised in this way, it will become possible to prevent a wiring member from coming out of a connector carelessly now.

  In this case, it is preferable that the support member is fixed to the substrate with an adhesive or a double-sided adhesive tape.

  According to the present invention, it is possible to prevent an extreme stress from acting on the wiring member in the electronic device in which the wiring member is curved and deformed in a direction wound around the support member when the moving member moves.

  In the present invention, when the wiring member bends and deforms as the moving member moves, the portion of the wiring member that extends from the connector is bent at the portion of the support member. At this time, the support member is pressed and contracted at the curved portion of the wiring member, and the wiring member is pressed against the inside of the bending portion by the elastic restoring force of the support member. Therefore, the curvature radius of the curved portion of the wiring member does not become extremely small, and it becomes difficult for excessive stress to act locally on the wiring member.

  FIG. 1 is a perspective view showing a connecting portion between a connector and a wiring member as an embodiment of the present invention, FIGS. 2 to 5 are side views of an electronic apparatus showing a wiring member routing operation accompanying the movement of the moving member, and FIG. It is an expanded side view of the connection part of the connector and wiring member which show the bending operation of a wiring member.

  2 to 5 includes a metal housing 2 and a front panel 3 provided on a front surface of the housing 2 facing the Y1 side. A moving member 7 is provided in front of the front panel 3 of the device body 1. The casing 2 has a 1DIN size, and the casing 2 is embedded in, for example, a dashboard or an instrument panel in a vehicle cabin. At this time, the front panel 3 substantially coincides with the surface of the dashboard or instrument panel.

  The moving member 7 is called a movable panel or a movable nose. Operation members 8a and 8b are provided on the surface of the moving member 7, and a display member such as a liquid crystal display element or an LED is further provided. Alternatively, a display screen such as a liquid crystal display device may be provided in almost the entire front surface of the moving member 7.

  A region 4 below the internal space of the device body 1 is a storage region for the moving member 7 and a moving region for the moving member 7. An area above the internal space of the device main body 1 is an installation area 5. In the installation area 5, a circuit board on which an electronic circuit is mounted, a drive unit for driving a recording medium such as a disk, and the like are installed. An opening 6 is formed below the front panel 3, and the opening 6 communicates with the storage area 4.

  The storage area 4 is provided with a reciprocating driving member 10 for moving the moving member 7, and the reciprocating driving member 10 has a driving means (not shown) provided in the housing 2. Thus, it is driven back and forth (Y1 direction) and backward (Y2 direction). At the front portion of the reciprocating drive member 10, the side surface of the moving member 7 on the lower end 7 b side is rotatably supported by the support shaft 9.

  In this embodiment, the moving member 7 is installed and used at a position covering the front of the front panel 3 as shown by the solid line in FIG. When the reciprocating drive member 10 advances in the Y1 direction from the state shown by the solid line in FIG. 2, the moving member 7 becomes vertical at a position slightly away from the front panel 3 as shown by the one-dot chain line in FIG. Alternatively, the posture is inclined at a predetermined angle as shown by a one-dot chain line in FIG. 3, and the moving member 7 is in a horizontal posture as shown by a solid line in FIG. After the moving member 7 is in the horizontal posture, as shown in FIGS. 4 and 5, when the reciprocating drive member 10 is retracted in the Y2 direction, the moving member 7 is stored in the storage region 4.

  In this electronic apparatus, when the reciprocating drive member 10 moves forward, posture control means is provided for changing the moving member 7 from the vertical posture shown in FIG. 2 to the inclined posture shown in FIG. 3 and further to the horizontal posture. This posture control means is a link mechanism provided between the moving member 7 and the reciprocating drive member 10, a small motor mounted on the reciprocating drive member 10 and directly providing rotational force to the moving member 7. .

  A main circuit board 12 on which an electronic circuit is mounted is fixed inside the housing 2. A fixed connector 15 is fixedly provided on the main circuit board 12. A connector 14 is also provided inside the moving member 7. The fixed connector 15 and the connector 14 are connected by a flexible wiring member 13. The wiring member 13 is a flexible printed cable in which a lead made of a conductor is patterned on the surface of a resin film, or a flat cable formed by joining insulating coatings of a plurality of coated conductors together.

  An insertion portion 13a is formed at one end of the wiring member 13, and the insertion portion 13a is inserted into the fixed connector 15 inside the housing 2, and a pattern is formed with a conductor on the surface of the insertion portion 13a. The electrode portion is connected to the internal terminal of the fixed connector 15. The other tip portion of the wiring member 13 enters the inside of the moving member 7 from a hole 7 a formed on the back surface of the moving member 7, and the insertion portion 13 b formed at the tip portion is inside the moving member 7. It is inserted into the connector 14. And the electrode part patterned by the conductor on the surface of this insertion part 13b is connected to the internal terminal of the said connector 14. FIG.

  As shown in FIG. 1, the fixed connector 15 has a slit-like insertion port 15a, and a plurality of the terminals are provided in the insertion port 15a. A plurality of connection terminals extending continuously from the terminals protrude from the bottom of the fixed connector 15, and each connection terminal is inserted into a mounting hole formed in the main circuit board 12. The conductor pattern is soldered.

  In the insertion portion 13a of the wiring member 13, the electrode is formed on the surface facing the lower side (Z2 side), and the reinforcing plate 20 is bonded and fixed to the surface facing the upper side (Z1 side) of the insertion portion 13a. ing. The reinforcing plate 20 is a resin sheet such as PET (polyethylene terephthalate) or PP (polypropylene) or a resin sheet on which a plurality of types of resin layers are stacked. When the insertion portion 13a is inserted into the insertion port 15a of the fixed connector 15, the base end portion 20a of the reinforcing plate 20 is inserted into the insertion port 15a by the same depth as the insertion portion 13a of the wiring member 13. Alternatively, the base end portion 20a of the reinforcing plate 20 is inserted into the insertion port 15a to be shallower than the insertion depth of the insertion portion 13a.

  As a result, the insertion portion 13a of the wiring member 13 can be easily inserted into and removed from the insertion port 15a of the fixed connector 15, and folds are prevented from being formed in the wiring member 13 by the edge of the opening edge of the insertion port 15a. is doing.

  As shown in FIG. 1, a support member 23 is provided at an extension portion of the wiring member 13 from the fixed connector 15 with a little distance from the fixed connector 15 forward (Y1 direction). In this embodiment, the support member 23 is a rectangular parallelepiped block that is long in the X direction, and the cross section in the YZ plane is rectangular or square. Further, the four corners of the rectangle or square are not right angles but slightly curved, and the corners of the support member 23 are curved.

  The support member 23 is made of a synthetic rubber such as butyl rubber or an elastic material such as foamed resin. In the embodiment, the support member 23 is formed of one block of the elastic material. However, the rectangular sheet | seat formed with the elastic material may be folded in two via the folding line in the middle of the long side which opposes, and a long side, and the folding part may be turned to Y1 direction.

  As shown in FIG. 1, the length dimension in the X direction (width direction) of the support member 23 is sufficiently longer than the length dimension in the X direction of the wiring member 13 and the reinforcing plate 20. When the center portion of the lower surface 23c of 23 is placed on the wiring member 13 and the reinforcing plate 20, both end portions 23b and 23b of the supporting member 23 are moved from the wiring member 13 and the reinforcing plate 20 in the X1 direction and the X2 direction. It is designed to protrude.

  Then, both end portions 23 b and 23 b of the support member 23 are bonded and fixed to the surface of the main circuit board 12. This adhesive fixing is performed using an adhesive means that can be easily bonded and can be peeled relatively easily, such as a double-sided adhesive tape fixed to the bottom surface of the support member 23. Further, the lower surface 23c of the support member 23 and the wiring member 13 and the reinforcing plate 20 may be bonded or may not be bonded.

  As a result of the end portions 23b and 23b being bonded to the surface of the main circuit board 12, the wiring member 13 and the reinforcing plate 20 are connected to the surface of the main circuit board 12 and the lower surface of the support member 23 as shown in FIG. 23c. As shown in FIG. 6, the distal end 20 b of the reinforcing plate 20 on the side away from the fixed connector 15 faces the lower surface 23 c of the support member 23. That is, the tip 20b of the reinforcing plate 20 is located closer to the fixed connector 15 than the front surface 23a facing the Y1 side of the support member 23. Therefore, the wiring member 13 extending in the Y1 direction from the tip 20b of the reinforcing plate 20 faces the lower surface 23c of the support member 23.

  In this embodiment, the support member 23 is provided in the extending portion of the wiring member 13 from the connector 14 even inside the moving member 7. The structure of the support member 23 inside the moving member 7 and the relationship between the connector 14 and the support member 23 are the same as the relationship between the fixed connector 15 and the support member 23 shown in FIG.

  As shown in FIGS. 2 to 5, the reciprocating drive member 10 is provided with a pair of guide members 16 and 17 extending in the width direction (X direction in FIG. 1) orthogonal to the paper surface. 13 is positioned between the guide member 16 and the guide member 17.

Hereinafter, the operation of the electronic device will be described.
As shown in FIG. 3, when the reciprocating drive member 10 moves forward in the Y1 direction and the moving member 7 is located away from the front panel 3, the wiring member 13 is fixed to the fixed connector 15 in the housing 2. Therefore, a large bending force does not act on the wiring member 13 in the portion where the support member 23 is provided.

  As shown in FIGS. 4 and 5, when the reciprocating drive member 10 moves in the Y2 direction and the moving member 7 is pulled into the storage region 4 in the housing 2, the wiring member 13 and the housing 2 are moved together with the moving member 7. Therefore, the wiring member 13 is bent and deformed in the Z1 direction and the Y2 direction at the portion where the support member 23 is provided. In particular, in this embodiment, the reciprocating drive member 10 is provided with a pair of guide members 16 and 17, and when the reciprocating drive member 10 moves in the Y2 direction, the guide member 16 and the guide member 17 in the wiring member 13. Since the portion sandwiched between and moves in the Y2 direction in the housing 2, a force for bending the wiring member 13 acts strongly at the portion where the support member 23 is provided.

  At this time, as shown in FIG. 6, since the wiring member 13 tries to bend and deform so as to be pressed against the front surface 23 a of the support member 23, the front surface 23 a of the support member 23 is pressed by the wiring member 13. 6 is contracted and deformed into a curved shape as shown by a solid line from a substantially flat state before deformation shown by a broken line in FIG. As a result, it is possible to prevent an excessive bending force from acting on the wiring member 13 in a portion extending from the fixed connector 15.

  Further, the deformed support member 23 acts as shown in FIG. 6 so that the elastic restoring force increases the radius of curvature of the wiring member 13 at the portion where it hits the front surface 23a. Therefore, the curvature radius of the curved portion of the wiring member 13 becomes extremely small at the portion that is in contact with the support member 23, and a phenomenon that it is almost bent does not occur.

  Further, the boundary portion between the tip 20 b of the reinforcing plate 20 and the wiring member 13 extending from the tip 20 b is sandwiched between the lower surface 23 c of the support member 23 and the surface of the main circuit board 12. Therefore, even if the wiring member 13 is curved as shown in FIG. 6, the bending force does not act on the wiring member 13 by the edge of the tip 20 b of the reinforcing plate 20.

  In this way, even when the wiring member 13 is bent and deformed as the moving member 7 moves, a bending force acts on the extended portion from the fixed connector 15 or a locally excessive bending stress is applied. Can be prevented from acting.

The perspective view which shows the junction part of the connector and wiring member in an apparatus main body as embodiment of this invention, It is a side view of the electronic device showing the routing operation of the wiring member, showing a state in which the moving member is in a standing posture, It is a side view of the electronic device showing the routing operation of the wiring member, showing a state in which the moving member is in an inclined posture or a horizontal posture, It is a side view of the electronic device showing the routing operation of the wiring member, showing a state in the middle of moving the moving member, It is a side view of the electronic device showing the routing operation of the wiring member, showing a state in which the moving member is housed inside the device body, An enlarged cross-sectional view showing a state in which the wiring member is bent by hitting the support member,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Housing | casing 3 Front panel 7 Moving member 10 Reciprocating drive member 12 Main circuit board 13 Wiring member 15 Fixed connector 16 Guide member 17 Guide member 20 Reinforcement plate 20b Tip of reinforcement plate 23 Support member

Claims (4)

In an electronic apparatus comprising: an apparatus main body; a moving member provided movably on the apparatus main body; a connector provided on the apparatus main body; and a flexible wiring member connecting the connector and the moving member. ,
A support member fixedly installed on the device main body is provided to face the wiring member extending from the connector, and a portion of the support member that contacts the curved deformation of the wiring member is accompanied by the bending of the wiring member. contraction deformable der Te is,
The wiring member is provided with a reinforcing plate at an insertion portion to the connector, and the support member is opposed to a tip portion of the reinforcing plate on the side away from the connector . The wiring member, according to claim 1 Symbol mounting electronic devices are sandwiched between the supporting member and substrate on which the connector is mounted. The electronic apparatus according to claim 2, wherein the support member is fixed to the substrate. Wherein when the moving member moves, the wiring member, the electronic device according to any one of claims 1 to 3 curved deformation in a direction which is wound on the support member.

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