JP4680029B2 - Portable electronic devices - Google Patents

Description

  The present invention relates to a portable electronic device, and particularly to an opening / closing mechanism of the portable electronic device.

Conventionally, in portable electronic devices such as mobile phones and PDAs (Personal Digital Assistants), a case with a liquid crystal display unit and a case with operation keys are configured to be openable and closable via hinges. A so-called folding type is known (for example, see Patent Document 1).
In recent years, such portable electronic devices have been remarkably multifunctional, and even in folding cellular phones, electronic parts such as camera modules are often mounted to increase added value. In these portable electronic devices, in order to further improve the added value, for example, it is desired to improve the zoom performance of the camera module, to improve the image quality, and to add functions other than the camera.
JP 2004-032271 A

However, in the above-described portable electronic device, when the added value is improved, for example, the number of parts increases or the electronic parts increase in size. is there.
In the above-described folding portable electronic device, a printed wiring board such as a flexible printed wiring board (FPC) is routed between the casings, and the printed wiring board does not hinder this movement when the casing is opened and closed. In addition, in order for the printed wiring board to withstand the opening / closing operation of the housing, it is necessary to secure a sufficient space, and it is difficult to secure a space for housing electronic components near the hinge. There is a problem that there is.

  Accordingly, the present invention provides a portable electronic device capable of increasing added value while suppressing an increase in size of the housing by newly securing a space in the housing.

In order to solve the above problems , the following means were adopted.
The present invention relates to a portable electronic device in which two opposing housings are supported so as to be freely opened and closed via an opening / closing mechanism, wherein the opening / closing mechanism is provided in one housing and is arranged on one side in the opposing direction (front A projecting portion projecting to the case side), a hollow rotating shaft extending from one side surface of the projecting portion, and a bearing portion that is provided on the other housing and pivotally supports the rotating shaft , The projecting portion is formed therein with a space portion communicating with the one housing , and the space portion is inserted through the rotating shaft and a cable extending between the one housing and the other housing is arranged. The first electronic component and a holding member for holding the first electronic component are accommodated therein, and the holding member is on the other side (rear case side) in the facing direction in the one housing. The second electronic component disposed in the space is supported .

Further, the holding member closes the space portion while being accommodated in the space portion .

Further, the holding member may have a flat portion positioned on an inner surface substantially coplanar of the one housing, characterized in that it supports the second electronic component at the flat portion.

Further, the holding member has a restricting portion (for example, a restricting hole 31 in the embodiment) for restricting the cable routing position.

Further , a hinge unit (for example, the hinge unit 34 in the embodiment) is inserted into the other side surface (for example, the side wall 33 in the embodiment) of the protrusion, and the holding portion engages with the hinge unit. An engaging portion (for example, the engaging portion 50 in the embodiment) is provided.

In addition, the first electronic component is a vibration generator (for example, the motor M in the embodiment).

Further, the protruding portion, the the open time of the two casings exposed to the inner surface of the other casing, the two housings closing the through-hole exposed on the outer surface side of the other housing (e.g., implemented through hole 21) is in the form provided with the through hole, that the operation key of the first electronic component housed in the space portion (e.g., operation keys 24 in the embodiment) are disposed adjacent Features.

  According to the present invention, it is possible to increase the added value without increasing the size because the space can be formed in the protruding portion, the electronic component can be arranged here, and the space in the protruding portion can be effectively used. There is.

  In addition, at the time of assembly, for example, the connector of a cable that tends to increase in size due to its multi-function can be smoothly guided to the inside of one housing via the rotating shaft, so that the burden on the assembly operator is reduced. In addition to the reduction, there is an effect that the space can be effectively used to arrange electronic components and reduce the size of the housing.

Next, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a mobile phone will be described as an example of the portable electronic device of the present invention.
In FIG. 1, reference numeral 1 denotes a mobile phone according to this embodiment. The mobile phone 1 includes a first housing (one housing) 3 having a main display 2 and a key operation unit 4. A second housing (the other housing) 5 is supported so as to be openable and closable so as to be folded so as to face each other via a hinge portion (opening / closing mechanism) 6 provided at the base.

  A key operation unit 4 such as a call key and an end key is exposed on the inner surface 7 of the second housing 5, and a microphone 8 is disposed below the key operation unit 4. Furthermore, the base part of this 2nd housing | casing 5 is provided with the notch part 9 formed in the horizontally long concave shape along the width direction of the 2nd housing | casing 5, and it has arrange | positioned at the both sides of this notch part 9 The upper part of the second housing 5 is a bearing part 10 of the hinge part 6. On the other hand, the main housing 2 is disposed on the inner surface 3 a of the first housing 3, and the speaker 11 is disposed above the main display 2. A cushion material 12 is attached to each of the left and right inner surfaces 3a of the speaker 11, and the first housing 3 and the second housing 5 are closed by the cushion material 12 when the first housing 3 is closed. 3 and the tip of the second housing 5 are alleviated from contacting each other.

  As shown in FIG. 2, the first housing 3 includes a front case 13 that forms the inner surface 3a and a rear case 14 that forms the outer surface 3b. The front case 13 includes the main display 2 described above. A sub-display 15 that is slightly smaller than that is disposed. A window 16 for exposing the sub display 15 to the outside of the first housing 3 is formed in the rear case 14, and a lens portion 18 a of the camera module 18 is disposed near the base of the rear case 14. A window 17 is formed to be exposed to the outside of the body 3.

  In addition, a protrusion 19 that protrudes toward the inner surface of the first housing 3 is formed at the base of the front case 13. The projecting portion 19 is formed in a horizontally long and convex shape corresponding to the notch portion 9 (see FIG. 1) described above, and as shown in FIGS. Is formed. Furthermore, a plurality of (for example, three) through holes 21 are formed side by side on the bottom wall 19 a of the protrusion 19, and the first and second spaces 20 provided inside the protrusion 19 are connected to the first through holes 21. The outside of the housing 3 is in communication.

  An operation switch (electronic component) 22 is accommodated in the space 20 of the protrusion 19. A plurality of operation keys 24 (for example, about 3) are arranged on the switch body 23 of the operation switch 22. Projected. As shown in FIG. 10, the operation key 24 faces the outside of the first housing 3 from the through hole 21 by arranging the lower surface of the switch body 23 in contact with the inner surface of the bottom wall 19 a described above. Will be placed. The operation key 24 is urged toward the outside of the first housing 3 by a spring member (not shown) provided on the switch body 23, and is provided on the lower surface of the switch body by pressing the operation key 24. The electrodes are in contact with each other, and this signal is input to the circuit board 25 accommodated in the first housing 3. Here, the operation key 24 is disposed so as to be provided through the through-hole 21 exposed on the inner surface side of the first housing 3 and the second housing 5 when the mobile phone 1 is in the open state. When 1 is in a closed state, it is arranged so as to be adjacent to the through hole 21 exposed on the outer surface side of the second housing 5.

  The projecting portion 19 is provided with a dummy hinge (rotating shaft) 27 extending outward from one side wall (one side surface) 26 disposed on the outer side in the width direction of the first housing 3. The dummy hinge 27 is formed in a hollow shape, and extends between a circuit board 25 provided in the first housing 3 and a circuit board (not shown) provided in the second housing 5. A coaxial cable (cable) 28 for connecting them is inserted. A hard resin multi-pole connector (connector) 29 in which a plurality of electrodes are arranged along the coaxial cable 28 is attached to the end of the coaxial cable 28. The inner diameter r of the dummy hinge 27 described above is The size is set such that the multipolar connector 29 can be inserted. The space portion 20 of the protrusion 19 described above is set such that the length Lt in the insertion direction of the coaxial cable 28 is longer than the length Lc of the multipolar connector 29, and the multipolar connector is connected to the end of the coaxial cable 28. In a state in which 29 is connected, the dummy hinge 27 can be introduced from the outside of the opening and guided to the inside of the first housing 3. As shown in FIGS. 2 and 4, the coaxial cable 28 introduced into the first housing 3 from the dummy hinge 27 is connected to the first housing 3 via a restriction hole (restriction portion) 31 of a partition 46 described later. Then, the multipolar connector 29 described above is coupled to the connector 32 of the circuit board 25 disposed in the first housing 3.

  On the other hand, as shown in FIG. 3, the hinge unit 34 is inserted into the other side wall (the other side surface) 33 of the protrusion 19. The hinge unit 34 is arranged so that the rotation axis is overlapped with the dummy hinge 27 described above, and the dummy hinge 27 and the hinge unit 34 are rotatably supported by the bearing portions 10 and 10 so that the first housing is provided. 3 and the second housing 5 are configured to be openable and closable with respect to each other. A torque is applied by the hinge unit 34 at the end of opening and closing at the time of opening and closing. Here, as shown in FIG. 1, when the first casing 3 and the second casing 5 are in an open state, the lower inner surface 3 a of the first casing 3 and the upper outer surface of the second casing 5. Are arranged so as to face each other.

  2 and 10, a flexible printed wiring board (hereinafter simply referred to as FPC) 35 is disposed on the upper surface of the switch body 23. The FPC 35 includes a wiring portion 36 connected to the circuit board 25 arranged inside the first housing 3, and a vibrator motor having a weight 43 attached to a rotating shaft on the upper surface of the FPC. (Electronic component, vibration generator) A holder 37 for holding M is disposed. The holder 37 is formed by two opposing vertical walls 38 and 38 and a bottom wall 39 mainly along the width direction of the first housing 3, and a holder 40 that holds a motor M for a vibrator, An electric switch base (not shown) for the motor M is provided.

  The former holding portion 40 is formed between the two vertical walls 38, 38, is formed at a slightly narrower interval than the width dimension of the motor M, and includes a concave portion 44 opened upward. As shown in FIG. 5, the motor M is housed in the holder 37 so that the rotation axis of the motor M is along the width direction of the first housing 3. The inner wall sandwiches and holds the side wall of the motor M from both sides. On the other hand, the latter electric switch base is provided on the bottom wall 39 of the holder 37, and the motor M is inserted into the holding portion 40, so that the contact between the contact provided on the motor M and the contact of the FPC 35 is provided. An electrical connection is established. Here, the motor M described above is inserted into the holder so that the weight 43 is disposed at a position away from the dummy hinge 27, and prevents the weight 43 from interfering with the coaxial cable 28. On the other hand, on the upper edge of the holder 37, a partition portion 46 that is disposed between the vertical walls 38 and 38 and covers the opening 45 of the space portion 20 is disposed.

  As shown in FIGS. 6 to 8, the partition portion 46 is formed of a hard resin, and has a partition portion main body (planar portion) 47 formed in a flat shape partially including a hole, and the partition portion main body 47. Two arms 48 and 48 respectively extending from one side edge of each of the first and second arms 48, 48, a mounting seat 49 having a screw hole formed integrally with the tips of the arms 48 and 48, and the partition body 47. It is comprised by the engaging part 50 formed by extending in the substantially perpendicular direction of the partition part main body 47 from the other side edge. Here, the longitudinal lengths of the vertical walls 38 of the holder 37 described above are formed substantially the same as the partition body 47, and the holder 37 is not disposed below the two arms 48, 48. It is like that.

  The two arms 48, 48 extend in the longitudinal direction of the partition body 47, rise in this vertical direction, and then have a substantially crank shape formed by extending in the longitudinal direction of the partition body 47 again. The ends of the arms 48 and 48 are bent inwardly between the arms 48 and 48, and a substantially cylindrical mounting seat 49 having a screw hole 51 is formed integrally therewith. ing. The partition portion main body 47, the two arms 48 and 48, and the mounting seat 49 are surrounded by a substantially rectangular restriction hole 31, through which the coaxial cable 28 is inserted. Here, the restriction hole 31 is formed in a size that allows the multipolar connector 29 to be inserted.

  Further, the engaging groove 50 is formed with an engaging groove 52 along the extending direction described above. The engagement groove 52 is formed with an opening 53 at the end of the engagement portion 50 on the base side, and further, a hook-shaped convex portion so as to slightly enter from both side edges of the engagement groove 52 toward the center of the opening. 54 and 54 are arranged facing each other. On the other hand, a flange portion f (see FIG. 7) is formed at the base portion of the hinge unit 34 (see FIG. 3), and the flange portion f of the hinge unit 34 is pushed into the engaging groove 52 from the outside in the vertical direction. Thus, the convex portions 54 of the engagement groove 52 hold the flange portion f of the hinge unit 34 and the hinge unit 34 is fixed to the partition portion 46. Here, the partition portion main body 47 is formed with a recess 59 that enters from the outside of the long side toward the inside.

  A plurality of engaging portions 56 having holes 55 are formed on the side edges along the longitudinal direction of the partition portion 46, while the upper edge of the vertical wall 38 of the holder 37 described above is formed as shown in FIG. 2. The plurality of claws 57 project upward at positions corresponding to the engaging portions 50, and the holes of the engaging portions 50 are inserted by inserting the claws 57 of the holder 37 into the holes 55 of the engaging portions 50. A claw 57 is locked to the peripheral edge of 55, and the partition portion 46 is fixed to the holder 37. The partition part 46 and the holder 37 constitute a motor holder (holding member) 58.

  In the state where the motor holder 58 is accommodated in the space portion 20, the partition portion main body 47 closes the space portion 20, and the upper surface 47a of the partition portion main body 47 and the inner surface of the front case 13 are separated as shown in FIG. It is set so as to be positioned on substantially the same plane. On the upper edge of the vertical wall 38 of the holder 37 (see FIG. 2), a flat plate-like extending portion 60 extending upward from a position corresponding to the concave portion 59 of the partition portion main body 47 is formed. 60 is formed so as to contact the inner surface of the lower wall 62 of the rear case 14 from the inner surface of the lower wall 61 of the projecting portion 19 through the recess 59 and reach a position slightly inside the upper surface of the camera module 18.

  As shown in FIGS. 9 and 10, the camera module 18 is disposed on the same plane formed by the upper surface 47a of the partition portion main body 47 and the inner surface 13a of the front case 13 adjacent to the upper surface 47a. . The above-described extending portion 60 disposed between the camera module 18 and the lower wall 62 of the rear case 14 is formed so as to gradually increase in thickness from the upper portion toward the lower portion. By fitting the above-described camera module 18 between the protruding portion 60 and the vertical wall 63 of the front case facing the extended portion 60, the extending portion 60 and the vertical wall 63 are disposed in a state where the camera module 18 is disposed above the partition portion 46. It is sandwiched between and fixed. At this time, the wiring portion 36 of the FPC 35 is routed between the lower surface 64 of the camera module 18 and the inner surface 13a of the front case 13, while the lens portion 18a of the camera module 18 is in the window 17 of the rear case 14 described above. It is arranged at the corresponding position.

In the first casing 3 of the mobile phone 1 configured as described above, the procedure for housing the operation switch 22 and the motor M of the vibrator in the space 20 of the protrusion 19 and mounting the camera module 18 thereabove is provided. This will be described with reference to FIGS.
First, as shown in FIG. 3, a dummy hinge 27 is attached to the protruding portion 19 formed on the front case 13 of the first housing 3, and the coaxial cable 28 to which a multipolar connector 29 is attached in advance via the dummy hinge 27. Is inserted. When the entire multipolar connector 29 is disposed in the space 20 of the protrusion 19, the end of the multipolar connector 29 is raised and the multipolar connector 29 is taken out of the space 20 of the protrusion 19. Then, as shown in FIG. 4, the coaxial cable 28 is temporarily fixed so as not to block the opening 45 of the space 20, and the operation switch 22 is inserted into the space 20. At this time, the operation key 24 (see FIG. 10) of the switch body 23 is arranged outside from the through hole 21. Then, as shown in FIG. 5, the FPC 35 is placed on the operation switch 22.

  Next, the motor M is inserted into the holding portion 40 of the holder 37 so that the weight 43 is far from the coaxial cable 28. When the motor M is fixed, the partition portion 46 is fixed on the holder 37, The motor holder 58 is accommodated in the space portion 20 so that the bottom wall 39 of the holder 37 faces downward, that is, as shown in FIG. 10, so that the bottom wall 39 contacts the FPC 35. At this time, the multipolar connector 29 of the coaxial cable 28 that has been temporarily fixed is inserted into the regulation hole 31 formed in the partition portion 46, and the multipolar connector 29 is connected to the connector 32 of the circuit board 25. Further, the mounting seat 49 of the partition portion 46 is fixed to the boss 66 of the front case 13 with a screw (not shown).

  As shown in FIG. 9, the coaxial cable 28 rises from the dummy hinge and is then inserted into the restriction hole 31. Thereafter, the coaxial cable 28 is bent toward the upper portion of the first housing 3, and further, the first housing 3 is further bent. The body 3 is bent in a crank shape toward the outer side in the width direction and is routed toward the connector 32. By arranging in this way, the coaxial cable 28 does not cover the upper surface 47a of the partition portion main body 47, so that the camera module 18 is not hindered.

  Further, the wiring portion 36 provided in the FPC 35 is connected to the circuit board 25 and the engaging groove 52 of the engaging portion 50 of the partition portion 46 is fitted to the base portion of the hinge unit 34 inserted through the side wall 33. Let it fix. Thereafter, the camera module 18 is fitted over the partition portion 46, and the wiring portion 65 of the camera module 18 is connected to the circuit board 25. Next, the front case 13 and the rear case 14 are coupled by engagement means (not shown), and the assembly of the first housing is completed.

  Therefore, according to the above-described embodiment, the projecting portion 19 is formed on the front case 13, and the space portion 20 is formed in the projecting portion 19, for example, the operation switch 22 having the operation key 24 and the vibrator. Since the space portion 20 in the protruding portion 19 can be effectively used by arranging the motor M for use, the added value of the mobile phone 1 without increasing the size of the first housing 3 and the second housing 5 Can be increased.

  Further, when the first housing 3 is assembled, the multipolar connector 29 that has become multipolar due to the multi-function can be smoothly guided to the inside of the first housing 3 via the dummy hinge 27, so that the burden of assembly work is reduced. It is possible to reduce the size of the casing of the mobile phone 1 while effectively reducing the space 20 set longer than the length of the multipolar connector 29.

Furthermore, since the position of the vibrator motor M can be held by the motor holder 58 so as not to move, rattling can be suppressed and reliability can be improved.
Since the inner surface 13a of the front case 13 of the first housing 3 and the upper surface 47a of the partition portion main body 47 can be formed in substantially the same plane, the camera module 18 can be easily formed in the substantially coplanar portion. It is possible to arrange electronic parts such as.

  Moreover, since the wiring position of the coaxial cable 28 of the partition part 46 can be controlled, the bending of the coaxial cable 28 and the like can be suppressed, and as a result, the durability of the coaxial cable 28 can be improved.

Furthermore, since it is possible to restrict the movement of the hinge unit 34 in the axial direction by the engaging portion 50 of the partition portion 46, further improvement in reliability can be achieved.
In addition, since the vibrator motor M can be disposed at a substantially central portion of the first casing 3 and the second casing 5, that is, in the vicinity of the hinge portion 6, vibrations are generated in the first casing 3 and the second casing. 5 can be efficiently transmitted to both.

  Then, the operation key 24 is arranged here by effectively using the space of the protrusion 19 arranged on the inner surface 5a side of the second housing 5 when the first housing 3 and the second housing 5 are in the open state. Therefore, a new function using the operation key 24 can be added, and therefore the added value of the mobile phone 1 can be improved without increasing the size.

In the above-described embodiment, the mounting seat 49 of the partition portion 46 is integrally provided at the ends of the two arms 48, and the restriction hole 31 for restricting the coaxial cable 28 is formed in a hole shape. As a so-called cantilever shape in which a mounting seat 49 is provided at the end of 48, the restriction hole 31 may be configured as a concave restriction part.
In this embodiment, the mobile phone has been described as an example. However, the present invention can also be applied to a mobile electronic device (for example, a PDA) other than the mobile phone. Furthermore, in this embodiment, the projecting portion 19 is provided on the first housing 3 side. However, a projecting portion may be provided on the second housing side and a notch may be provided on the first housing side.

It is a front view at the time of opening of the mobile phone in the embodiment of the present invention. It is a disassembled perspective view of the 1st housing | casing in embodiment of this invention. It is a partial explanatory view of the 1st case in an embodiment of the invention. It is a partial explanatory view of the 1st case in an embodiment of the invention. It is a partial explanatory view of the 1st case in an embodiment of the invention. It is a perspective view of the partition part in embodiment of this invention. It is A arrow directional view of FIG. 6 in embodiment of this invention. It is a B arrow line view of FIG. 7 in embodiment of this invention. It is assembly explanatory drawing of the camera module in embodiment of this invention. FIG. 2 is a simplified cross-sectional view taken along the line CC of FIG. 1 in the embodiment of the present invention.

Explanation of symbols

3 First housing (one housing)
5 Second housing (the other housing)
6 Hinge (opening / closing mechanism)
DESCRIPTION OF SYMBOLS 10 Bearing part 13a Inner surface 19 Protrusion part 20 Space part 21 Through-hole 22 Operation switch (electronic component)
24 operation keys 26 side wall (one side)
27 Dummy hinge (Rotating shaft)
28 Coaxial cable (cable)
29 Multi-pole connector (connector)
31 Restriction hole (Regulation part)
33 Side wall (the other side)
34 Hinge unit M Motor (electronic parts, vibration generator)
47 Partition body (flat part)
50 engaging portion 58 motor holder (holding member)

Claims (7)

In a portable electronic device in which two opposing housings are supported so as to be freely opened and closed via an opening and closing mechanism,
The opening / closing mechanism is provided in one housing and protrudes to one side in the facing direction ;
A hollow rotating shaft extending from one side surface of the protruding portion;
A bearing portion provided on the other casing for rotatably supporting the rotary shaft,
With
The protruding portion is formed with a space portion communicating with the inside of the one casing .
The space portion is inserted through the rotation shaft, and a cable extending between the one housing and the other housing is routed , and the first electronic component and the first electronic component are held therein. A holding member is housed,
The portable electronic device , wherein the holding member supports a second electronic component disposed on the other side in the facing direction in the one casing . The portable electronic device according to claim 1, wherein the holding member closes the space portion while being accommodated in the space portion . The holding member may have a flat portion positioned on an inner surface substantially coplanar of the one housing, according to claim 1 or claim, characterized in that for supporting the second electronic component at the flat portion 2. The portable electronic device according to 2. The portable electronic device according to any one of claims 1 to 3, wherein the holding member includes a restricting portion that restricts a position where the cable is routed. A hinge unit is inserted through the other side surface of the protrusion,
The portable electronic device according to any one of claims 1 to 4, wherein the holding member is provided with an engaging portion that engages with the hinge unit. The portable electronic device according to any one of claims 1 to 5, wherein the first electronic component is a vibration generator. The protrusion is exposed to the inner surface of the other casing to open when the two housings, through holes exposing the outer surface side of the other housing is provided on closing of the two housings,
The through hole is a portable electronic device according to any one of claims 1 to 6 in which the operation keys of the first electronic component housed in the space portion, characterized in that it is arranged adjacent.

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