JP2013005246A - Portable electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a battery pack in a portable cellular phone to be increased in size to a relatively large one.SOLUTION: When assembled, a main circuit board 41 is moved in the direction indicated by an arrow A while being held slightly aslant, and an external connection connector 44 provided at the tip of the main circuit board 41 is inserted into an external connection connector insertion through hole 25 of a front case 21. At this time, a touch panel flexible wiring board 2, a liquid crystal display panel flexible wiring board 12, and a sub-circuit board 31 each have a certain extra length part, their respective connectors 4, 15 and 39 being connected to the underside at one end of the main circuit board 41. This makes it possible to use the top face at one end of the main circuit board 41 as a battery pack mounting region, enabling the battery pack to be increased in size to a relatively large one.

Description

  The present invention relates to a portable electronic device such as a cellular phone.

  For example, in a conventional mobile phone, as described in Patent Document 1, for example, a sheet metal is provided in a case, a circuit board is provided under the sheet metal, a liquid crystal module is provided on the sheet metal, and a touch panel is provided on the liquid crystal module. One end of the flexible wiring board is connected to one end of the liquid crystal module, the middle of the flexible wiring board is bent 180 °, and the other end of the flexible wiring board is connected to a connector provided under the circuit board. There is something. In this case, the touch panel is exposed on the upper surface of the case.

  Further, in another conventional mobile phone, for example, as described in Patent Document 2, a circuit board is provided on an upper casing, a magnesium casing is provided on the circuit board, and a lower casing is provided on the magnesium casing. In some cases, a body is provided, a battery pack is provided on the lower housing, and a battery cover is provided thereon. In this case, an external connector is provided between the end of the circuit board and the end of the lower housing so as to be connected to the circuit board. The external connection connector is exposed to the outside when the external connection connector cover provided on the outside thereof is opened.

JP 2010-239323 A JP 2005-123469 A

  By the way, in the mobile phone as described above, it is necessary to connect the liquid crystal module and the touch panel to the circuit board through a dedicated flexible wiring board, and it is necessary to connect the external connection connector to the circuit board. When the connection connector cover is opened, the external connection connector needs to be exposed to the outside, and the battery pack is relatively downsized as described later due to the assembly method that is restricted by these points. There is a problem that it must be done.

  In view of the above, an object of the present invention is to provide a portable electronic device in which a battery pack can be made relatively large.

  A portable electronic device according to the present invention includes a front case, a liquid crystal display panel unit provided on the upper surface of the front case, and a touch panel screen provided on the upper surface of the front case on the upper surface side of the liquid crystal display panel unit. A rear case provided on the lower surface of the front case, a main circuit board provided between the liquid crystal display panel unit and the rear case, a battery pack provided on the upper surface of the main circuit board, and one end The connector is connected to the liquid crystal display panel unit, has a surplus portion and is bent by 180 °, and the connector provided at the other end is replaced with a connector for a liquid crystal display panel provided at the lower surface of one end of the main circuit board. Connect the flexible wiring board for the liquid crystal display panel and one end to the touch panel screen. A flexible wiring board for a touch panel having a surplus portion and being bent by 180 °, wherein a connector provided at the other end is connected to a connector for a touch panel provided on the lower surface of one end of the main circuit board. It is characterized by that.

  According to this invention, the battery pack can be made relatively large.

The disassembled perspective view of the principal part of the mobile telephone as one Embodiment of this invention. The perspective view shown in order to demonstrate a touchscreen screen. The perspective view shown in order to demonstrate a liquid crystal display panel unit. The perspective view seen from the lower surface side shown in order to demonstrate a front case, and the one part enlarged perspective view. The perspective view shown in order to demonstrate a subcircuit board | substrate. (A) is the perspective view shown in order to demonstrate a main circuit board, (B) is the perspective view seen from the lower surface side. FIG. 2 is a partial cross-sectional view in a state where the components shown in FIG. 1 are assembled. FIG. 2 is a perspective view of an initial assembly process when assembling the components shown in FIG. 1. The perspective view of the assembly process following FIG. The perspective view of the assembly process following FIG. The perspective view of the assembly process following FIG. The perspective view of the assembly process following FIG. Sectional drawing of the part of the flexible wiring board for touchscreens in the state which assembled all. Sectional drawing of the part of the flexible wiring board for liquid crystal display panels in the state by which all were assembled. Sectional drawing of the part of a subcircuit board in the state where all were assembled.

  FIG. 1 is an exploded perspective view of a main part of a mobile phone as an embodiment of the present invention. The mobile phone includes a touch panel screen 1, a liquid crystal display panel unit 11, a front case 21, a sub circuit board 31, a main circuit board 41, a battery pack 51, a rear case 61, and the like.

  Next, FIG. 2 is a perspective view for explaining the touch panel screen 1. One end portion of the touch panel flexible wiring board 2 is connected to the lower surface of the central portion of one end portion of the touch panel screen 1. Here, the actual connection of the one end of the touch panel flexible wiring board 2 to the touch panel screen 1 will be described later. A touch panel electrical component 3 is provided at a predetermined location on the upper surface of the touch panel flexible wiring board 2. A touch panel connector 4 is provided on the upper surface of the other end of the touch panel flexible wiring board 2.

  Next, FIG. 3 is a perspective view for explaining the liquid crystal display panel unit 11. One end of a flexible wiring board 12 for a liquid crystal display panel is connected to the center of one end of the liquid crystal display panel unit 11. A liquid crystal display panel electrical component 13 is provided at a predetermined position on the upper surface of the liquid crystal display panel flexible wiring board 12. The other end portion of the backlight flexible wiring board 14 is pressure-bonded to another predetermined portion of the upper surface of the liquid crystal display panel flexible wiring board 12. One end of the backlight flexible wiring board 14 is connected to a backlight (not shown) in the liquid crystal display panel unit 11. A liquid crystal display panel connector 15 is provided on the upper surface of the other end of the liquid crystal display panel flexible wiring board 12.

  Next, FIG. 4 is a perspective view seen from the lower surface side for explaining the front case 21 and a partially enlarged perspective view thereof. A ring-shaped waterproof packing groove 22 is provided on the outer periphery of the lower surface (upper surface in FIG. 4) of the front case 21. A waterproof packing 23 is press-fitted into the waterproof packing groove 22. A flexible wiring board insertion slit 24 is provided at one end of the front case 21. An external connection connector insertion through-hole 25 is provided at a predetermined location on the side wall of the other end of the front case 21.

  Next, FIG. 5 is a perspective view for explaining the sub circuit board 31. The sub circuit board 31 includes a first board part 32, a second board part 34 for the microphone 33 provided by bending downward at one end part of the first board part 312, and the first board part 32. The third substrate portion 35 is provided by being bent 90 ° at the other end portion, and the fourth substrate portion 36 is provided by being bent 90 ° at the distal end portion of the third substrate portion 35. . On the upper surface of the first substrate portion 32, a key land 37 corresponding to a key (not shown) provided at three predetermined positions on one end of the front case 21 and an LED 38 for illuminating the key are provided. . A sub circuit board connector 39 is provided on the upper surface of the fourth board portion 36.

  Next, FIG. 6 (A) is a perspective view for explaining the main circuit board 41, and FIG. 6 (B) is a perspective view seen from the lower surface side. As shown in FIG. 6A, an area of about 2/3 indicated by parallel oblique lines on the upper surface of the main circuit board 41 is a battery pack mounting area. The remaining approximately 1/3 of the upper surface of the main circuit board 41 indicated by the hatched area is a mountable area for electrical components such as the battery terminal 42 and the card connector 43. As shown in FIG. 6B, the area indicated by the hatched area of the lower surface of the main circuit board 41 is an area where electrical components can be mounted. An external connection connector 44 is provided at a predetermined location on one end of the main circuit board 41.

  Next, FIG. 7 shows a cross-sectional view of a part (that is, a part of the connector for external connection) in a state where the parts shown in FIG. A rear case 61 is provided below the front case 21. In this state, the front case 21 and the rear case 61 are waterproofed by the waterproof packing 23. A touch panel screen 1 is provided on the upper surface of the front case 21.

  A main circuit board 41 is provided between the front case 21 and the rear case 61. The external connection connector 44 provided at one end of the main circuit board 41 is inserted into the external connection connector insertion through hole 25 of the front case 21, and the tip thereof is outside the external connection connector insertion through hole 25. Is protruding. A connector cover 63 having a waterproof packing 62 is provided in the front case 21 outside the external connection connector insertion through hole 25 so as to be opened and closed.

  Next, assembling a part of the mobile phone will be described. First, as shown in FIG. 8, the first substrate portion 32 of the inverted sub circuit board 31 is bonded on both sides to a predetermined location near the flexible wiring board insertion slit 24 on the upper surface of the inverted front case 21. Affixing via tape (not shown).

  Next, as shown in FIG. 9, the front case 21 is turned upside down, and the liquid crystal display panel unit 11 is assembled at a predetermined position on the upper surface of the front case 21 that is turned upside down. In this case, the flexible wiring board 12 for the liquid crystal display panel is projected to the lower surface side of the front case 21 through the flexible wiring board insertion slit 24 of the front case 21.

  Next, as shown in FIG. 10, the touch panel screen 1 is disposed on the upper surface of the liquid crystal display panel unit 11, and a predetermined position on the lower surface of the outer peripheral portion of the touch panel screen 1 is attached to the front case via a double-sided adhesive tape (not shown). Affix to the upper surface of 21. In this case, the touch panel flexible wiring board 2 is projected to the lower surface side of the front case 21 through the flexible wiring board insertion slit 24 of the front case 21.

  Next, as shown in FIG. 11, the front case 21 is turned upside down, and the main circuit board 41 is set up vertically with the lower surface of the front case 21 as a front side, and in the vicinity of the flexible circuit board insertion slit 24 of the front case 21. The touch panel connector 4 of the touch panel flexible wiring board 2 and the liquid crystal display panel flexible circuit board 12 liquid crystal display panel connector are arranged on three connectors (not shown) provided at the lower end of the lower surface of the main circuit board 41. 15 and the sub circuit board connector 39 of the sub circuit board 31 are connected. In this case, the electrical component 3 (see FIG. 2) provided on the touch panel flexible wiring board 2 and the electrical component 13 (see FIG. 3) provided on the liquid crystal display panel flexible wiring board 12 should not overlap each other. The device thickness can be prevented from increasing.

  Next, as shown in FIG. 12, the front case 21 is rotated 180 ° in the horizontal plane, the main circuit board 41 is tilted and moved slightly in the direction indicated by the arrow A, and the front end portion of the main circuit board 41 is moved. The external connection connector 44 provided on the front case 21 is inserted into the external connection connector insertion through hole 25 of the front case 21, and the tip of the external connection connector 44 is projected outside the external connection connector insertion through hole 25. The circuit board 41 is lowered and placed on the front case 21.

  Thus, the touch panel screen 1 including the touch panel flexible wiring board 2, the liquid crystal display panel unit 11 including the liquid crystal display panel flexible wiring board 12, the sub circuit board 31, and the main circuit board 41 are incorporated in the front case 21.

  Next, FIGS. 13 to 15 respectively show the portion of the touch panel flexible wiring board 2, the portion of the liquid crystal display panel flexible wiring board 12, and the sub circuit board 31 in a state where the battery pack 51, the rear case 61, and the like are further assembled. Each sectional drawing of a part is shown.

  First, as shown in FIG. 13, one end of the touch-panel flexible wiring board 2 is connected to a part of the upper surface of the touch panel screen 1 that is slightly away from the predetermined end on the center side (left side in FIG. 13). . The touch panel connector 4 provided at the other end of the touch panel flexible wiring board 2 is connected to a connector 45 provided on the lower surface of the main circuit board 41. And the flexible wiring board 2 for touch panels is somewhat longer than the minimum required length shown with a dotted line, and is bent 180 degrees in the middle. In other words, the touch-panel flexible wiring board 2 has a certain amount of extra length. This is to facilitate the assembly process shown in FIGS.

  Next, as shown in FIG. 14, the liquid crystal display panel connector 15 provided at the other end of the liquid crystal display panel flexible wiring board 12 is connected to a connector 46 provided on the lower surface of the main circuit board 41. . And the flexible wiring board 12 for liquid crystal display panels is somewhat longer than the minimum required length shown by a dotted line, and is bent 180 degrees in the middle. That is, the liquid crystal display panel flexible wiring board 12 also has some extra length. This is to facilitate the steps shown in the assembly shown in FIGS.

  Next, as shown in FIG. 15, the sub circuit board connector 39 provided at the other end of the sub circuit board 31 is connected to a connector 47 provided on the lower surface of the main circuit board 41. The sub circuit board 31 is somewhat longer than the minimum required length indicated by the dotted line, and is bent 180 ° in the middle. That is, the sub circuit board 31 also has some extra length. This is to facilitate the steps shown in the assembly shown in FIGS.

  By the way, as shown in FIG. 12, the main circuit board 41 is tilted and slightly tilted and moved in the direction indicated by the arrow A, and the external connection connector 44 provided at the tip of the main circuit board 41 is moved to the front case. The external connection connector insertion through-hole 25 is inserted into the external connection connector insertion through-hole 25, and the distal end portion of the external connection connector insertion through-hole 25 protrudes outside. Therefore, when the touch panel flexible wiring board 2, the liquid crystal display panel flexible wiring board 12 and the sub circuit board 31 do not have a certain length, the main circuit board 41 as described above is incorporated. I can't.

  That is, when the lengths of the touch panel flexible wiring board 2, the liquid crystal display panel flexible wiring board 12, and the sub circuit board 31 are the minimum required length, the main circuit board 41 as described above is incorporated. It is not possible. Therefore, when the minimum length of the touch panel flexible wiring board 2, the liquid crystal display panel flexible wiring board 12 and the sub circuit board 31 is the minimum required length, the main circuit board will be described with reference to FIG. 41 is disposed on the front case 21, and then the connectors 4, 15, and 39 of the touch panel flexible wiring board 2, the liquid crystal display panel flexible wiring board 12, and the sub circuit board 31 are provided on the upper surface of one end of the main circuit board 41. It will be connected to each connector.

  However, in such an assembly method, each connector 4, 15, 39 is connected to each connector provided on the upper surface of one end of the main circuit board 41. It cannot be used as (a region indicated by parallel oblique lines in FIG. 6A). Therefore, in such a case, a relatively small battery pack is used.

  On the other hand, in the above embodiment, the flexible wiring board 2 for touch panel, the flexible wiring board 12 for liquid crystal display panel, and the sub circuit board 31 have some extra length portions, and the connectors 4, 15, and 39 are connected to the main circuit board. 41 can be connected to each connector provided on the lower surface of one end portion of the main circuit board 41. Therefore, the upper surface of one end portion of the main circuit board 41 can be used as a battery pack mounting region, and the battery pack 51 is relatively large. Can be used.

  The present invention is not limited to a mobile phone, and is also applicable to an electronic device such as a portable terminal device such as a PHS (Personal Handyphone System) and a PDA (Personal Data Assistance, Personal Digital Assistance). be able to.

  Hereinafter, various aspects of the present invention will be collectively described as supplementary notes.

(Appendix 1)
The invention of appendix 1 includes a front case, a liquid crystal display panel unit provided on an upper surface of the front case, a touch panel screen provided on the upper surface of the front case on the upper surface side of the liquid crystal display panel unit, and the front case A rear case provided on the lower surface of the main circuit board, a main circuit board provided between the liquid crystal display panel unit and the rear case, a battery pack provided on the upper surface of the main circuit board, and one end of the liquid crystal A liquid crystal connected to the display panel unit, having an extra length portion and bent by 180 °, and a connector provided at the other end connected to a connector for a liquid crystal display panel provided at the lower surface of one end of the main circuit board Display panel flexible wiring board and one end connected to the touch panel screen, with extra length And a flexible wiring board for a touch panel which is bent 180 ° and connected to a connector for a touch panel provided on the lower surface of one end of the main circuit board. It is a portable electronic device.

(Appendix 2)
The external connection connector is provided at the other end of the main circuit board, and the external connection connector is inserted into an external connection connector insertion through-hole provided in the front case. It is a portable electronic device as described in above.

(Appendix 3)
The invention of Appendix 3 is characterized in that the flexible wiring board for a liquid crystal display panel and the flexible wiring board for a touch panel are inserted through a slit for inserting a flexible wiring board provided in the front case. It is a portable electronic device as described in above.

(Appendix 4)
The invention of appendix 4 is that a sub circuit board is provided on a lower surface of one end of the front case, the sub circuit board has an extra length portion and is bent by 180 °, and a connector provided at a tip of the sub circuit board is provided in the main circuit 4. The portable electronic device according to any one of appendices 1 to 3, wherein the portable electronic device is connected to a sub circuit board connector provided on a lower surface of one end of the board.

(Appendix 5)
The invention of Supplementary Note 5 is characterized in that the electrical component provided on the flexible wiring board for a liquid crystal display panel and the electrical component provided on the flexible wiring board for a touch panel are arranged at positions that do not overlap each other. It is a portable electronic device in any one of 1-4.

DESCRIPTION OF SYMBOLS 1 Touch panel screen 2 Flexible wiring board for touch panels 4 Connector for touch panels 11 Liquid crystal display panel unit 12 Flexible wiring board for liquid crystal display panels 15 Connector for liquid crystal display panels 21 Front case 24 Flexible wiring board insertion slit 25 Penetrating for connector insertion for external connection Hole 31 Sub circuit board 39 Sub circuit board connector 41 Main circuit board 44 Connector for external connection 51 Battery pack 61 Rear case

Claims (5)

  A front case, a liquid crystal display panel unit provided on the upper surface of the front case, a touch panel screen provided on the upper surface of the front case on the upper surface side of the liquid crystal display panel unit, and a lower surface of the front case A rear case, a main circuit board provided between the liquid crystal display panel unit and the rear case, a battery pack provided on an upper surface of the main circuit board, and one end thereof connected to the liquid crystal display panel unit. A flexible wiring board for a liquid crystal display panel having a surplus portion and being bent by 180 °, wherein a connector provided at the other end is connected to a connector for a liquid crystal display panel provided on the lower surface of one end of the main circuit board And one end of which is connected to the touch panel screen, has an extra length and is folded 180 °. A portable electronic device comprising: a flexible wiring board for touch panel connected to a connector for touch panel provided on a lower surface of one end portion of the main circuit board with a bent connector provided on the other end portion machine.   The external connection connector is provided at the other end portion of the main circuit board, and the external connection connector is inserted into an external connection connector insertion through-hole provided in the front case. The portable electronic device according to 1.   3. The portable type according to claim 1, wherein the flexible wiring board for a liquid crystal display panel and the flexible wiring board for a touch panel are inserted into a slit for inserting a flexible wiring board provided in the front case. Electronics.   A sub circuit board is provided on a lower surface of one end portion of the front case, the sub circuit board has an extra length portion and is bent by 180 °, and a connector provided at a tip portion of the sub circuit board is provided on a lower surface of the one end portion of the main circuit board. The portable electronic device according to claim 1, wherein the portable electronic device is connected to the provided sub circuit board connector.   5. The electrical component provided on the flexible wiring board for liquid crystal display panel and the electrical component provided on the flexible wiring board for touch panel are arranged at positions that do not overlap each other. A portable electronic device according to any one of the above.

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