JP5421449B1 - Mobile terminal device - Google Patents

Abstract

Even if a power receiving unit moves in the thickness direction of a power receiving terminal with respect to a casing following a battery pack that moves with respect to a circuit board due to an impact such as dropping, the circuit board and the connector part may be damaged or damaged. An object of the present invention is to provide a portable terminal device that does not come off from the network.
A mobile terminal device includes a power receiving unit having a plurality of terminal plates, a power supply unit provided on a battery pack and connected to the power receiving unit, and a circuit board. And a connector portion 23 connected to the power receiving portion 16 via the flexible circuit board 21. The flexible circuit board 21 has a bending / extending part 51 that can be bent and stretched in the direction in which the terminal board 44 is arranged.
[Selection] Figure 7

Description

  The present invention relates to a mobile terminal device in which a battery pack is accommodated adjacent to a circuit board in a housing, and a power feeding unit of the battery pack is connected to a power receiving unit in the housing.

  As illustrated in FIG. 13, in the mobile terminal device 500, for example, a connector unit 502 is provided on a circuit board 501 in a housing, and a power feeding unit 506 of a battery pack 505 is connected to a power receiving unit 504 connected to the connector unit 502. ing. Among the power receiving units 504, one having a plurality of power receiving terminals 507 formed in a band shape is known.

  In the power receiving unit 504, the power receiving terminals 507 are arranged at predetermined intervals in the thickness direction of each other (Patent Document 1).

JP 2008-97961 A (paragraph 0031, FIG. 2, FIG. 4)

  Incidentally, in recent years, improvement of the drop resistance performance and impact resistance performance of the mobile terminal device 500 is being demanded. However, if an impact larger than that conventionally assumed is applied to the housing, the movement of the power receiving unit is transmitted to the connector unit, and damage such as peeling from the circuit board may occur in the circuit board and the connector unit. .

  Furthermore, when the mobile terminal device 500 is used in an outside business, the battery pack battery may not be held during the business, and in this case, the battery pack needs to be replaced. In addition, the portable terminal device 500 used for outside work is required to be waterproof and dustproof as compared with the case where it is used indoors, and a device for improving the waterproof and dustproof properties is required.

  The present invention has been made in order to solve the above-described problems. The object of the present invention is to follow a battery pack that moves relative to a circuit board by an impact such as dropping, and the power receiving unit receives power from the housing. A portable terminal device capable of preventing damage to the circuit board and the connector even when moved in the thickness direction of the terminal, and satisfying both battery pack exchangeability, waterproofness, and dustproofness. Is to provide.

  The portable terminal device of the present invention includes a housing, a circuit board housed in the housing, a battery pack housed in the housing adjacent to the circuit board, and a power receiving unit held in the housing A plurality of terminal plates each having one end held on one surface of the power receiving unit, a power supply unit provided on the battery pack and connected to the power receiving unit, and provided on the circuit board, and flexible. A connector portion connected to the power receiving portion via a circuit board, and each of the plurality of terminal plates has one of the two widest parallel surfaces, one of the widest two surfaces of the adjacent terminal plates. The flexible circuit board has a bending / extending part that can be bent and extended along the direction in which the plurality of terminal plates are arranged. .

  The power supply unit of the battery pack was connected to the power receiving unit, and the connector unit was connected to the power receiving unit via a flexible circuit board. Furthermore, the flexible circuit board has a bending / extending part, and the bending / extending part can be bent and extended along the arrangement direction of the power receiving part and the connector part. Therefore, when the power receiving unit moves in the thickness direction of the power receiving terminal with respect to the housing following the battery pack that moves relative to the circuit board due to an impact such as dropping, the bending part of the flexible circuit board can bend and stretch. it can. The movement of the power receiving unit can be absorbed by the bending / extending unit. Accordingly, it is possible to prevent the connector portion from being damaged or detached from the board without transmitting the movement of the power receiving portion to the connector portion, and it is possible to prevent the supply of power from being interrupted. In particular, when the portable terminal device of the present invention handles important data such as settlement, collection and delivery, warehouse management work in diplomatic activities, the supply of power may be interrupted during such information processing or temporary storage of data. It leads to fatal data loss and destruction. According to the configuration of the present invention, such fatal data loss or destruction can be prevented.

  In the mobile terminal device of the present invention, a U-shaped portion is provided between the power receiving unit and the bent / extended portion of the flexible circuit board, and the U-shaped part is viewed from a direction orthogonal to the wiring surface of the flexible circuit board. It has a U-shape and protrudes to the opposite side of the power receiving portion with respect to the connector portion and the bent portion in a direction parallel to the wiring surface of the flexible circuit board and the widest two surfaces of the terminal board. ing.

  Thereby, the ability to absorb the impact transmitted through a battery pack by the fall of a portable terminal device, etc. can be improved further.

  In the portable terminal device according to the present invention, the housing further includes a housing part for the battery pack, the battery pack is detachable from the housing part, and liquid or dust is contained in the housing part. In the state in which a battery pack having a first waterproofing member that prevents intrusion and being detachable from the housing portion is housed in the housing portion, a plurality of terminal plates included in the power receiving unit are provided on the battery pack. It arrange | positions inside the said accommodating part rather than the 1st waterproofing member.

  As a result, the power receiving unit and the power supply unit of the battery pack are not exposed to liquid or dust from the outside, so that the battery pack can be replaced and can be waterproof and dustproof.

  The portable terminal device of the present invention includes a recess provided in the casing, a lid portion that closes the recess, and a hole provided in a bottom surface of the recess, and the hole includes the casing. The liquid is not allowed to pass from the inside to the inside, and is covered with a water stop member that allows gas to pass between the inside and the outside of the housing, and the recess is a housing portion of the battery pack in the housing. Provided outside.

  A hole was provided in the recess, and the hole was covered with a water-stop member capable of passing gas. Therefore, when external pressure is applied to the housing and the housing is deformed to reduce the internal space of the housing, excess air in the internal space is discharged from the hole. When the external pressure on the casing is released, the casing returns to the initial shape and the internal space is restored to the original state. When the internal space is restored to a negative pressure, outside air is sucked into the internal space from the hole, and the internal pressure of the internal space is restored to the original state. On the other hand, the water stop member that covers the hole has a function of preventing liquid from passing from the outside to the inside of the housing. As a result, when the casing is splashed with water, rain water, or the like, it is possible to prevent the splashed water or the like from entering the inside of the casing by the water stop member, and the waterproofness of the casing can be maintained. As a result, liquid and dust are prevented from entering from the pack opening (battery pack housing part) that accommodates the battery pack under the influence of negative pressure applied to the housing, and the data by unauthorized means Tamper resistance that prevents reading can be ensured.

  The portable terminal device of the present invention is provided on the bottom surface of the recess, and includes a communication hole that allows access to the circuit board from the outside of the housing, and surrounds the communication hole, and the bottom surface of the recess and the lid A frame-shaped second waterproof member disposed between and in close contact with the rear surface of the portion, and the hole is provided outside the second waterproof member at the bottom surface of the recess.

  This prevents not only the battery pack housing part but also liquid and dust from entering from the communication hole. Further, it is possible to ensure waterproofness, dustproofness, and tamper resistance, and to attach or enable a desired module while not being affected by negative pressure.

  According to the portable terminal device of the present invention, the connector part is connected to the power receiving part via the flexible circuit board, and the bending part of the flexible circuit board can be bent and stretched along the arrangement direction of the power receiving part and the connector part. Thereby, it is possible to prevent the connector portion from being damaged by bending and stretching the bending portion to absorb the movement of the power receiving portion and not transmitting the movement of the power receiving portion to the connector portion.

The perspective view which shows the state which looked at the portable terminal device of 1st Embodiment which concerns on this invention from the surface side The perspective view which shows the state which looked at the portable terminal device of FIG. 1 from the back surface side The disassembled perspective view which shows the state which divided | segmented the housing | casing with which the portable terminal device of FIG. 2 was equipped. The disassembled perspective view which shows the state which removed the cover from the portable terminal device of FIG. The top view which shows the state which removed the cover part from the portable terminal device of 1st Embodiment. Sectional drawing which shows the state which fractured | ruptured the portable terminal device of FIG. Part I enlarged view of FIG. II view showing a state where the power receiving unit and the flexible circuit board of FIG. 7 are viewed from the direction of arrow II The perspective view which shows the state before attaching a desired module to the portable terminal device of 1st Embodiment. The perspective view which shows the state which attached the desired module to the portable terminal device of 1st Embodiment. The perspective view which shows the flexible circuit board of 2nd Embodiment which concerns on this invention. A perspective view showing a flexible circuit board of a 3rd embodiment concerning the present invention. The perspective view which shows the portable terminal device of FIG.

  Hereinafter, a mobile terminal device according to an embodiment of the present invention will be described with reference to the drawings. In each figure, the X-axis is the left-right direction of the casing 11, the E1-E2 direction, the A-direction, the Y-axis is the longitudinal direction of the casing 11, the up-down direction, the B-direction, and the positive direction of the Z-axis is the casing 11. The negative direction of the front surface 11 </ b> A and the Z axis indicates the back surface 11 </ b> B of the housing 11.

(First embodiment)
As shown in FIGS. 1 and 2, the mobile terminal device 10 is accommodated in the casing 11 formed in a substantially rectangular shape, the display unit 12 provided on the surface 11 </ b> A of the casing 11, and the casing 11. Circuit board 13 (see FIG. 3) and a battery pack 14 accommodated in the housing 11.

  Further, as shown in FIGS. 3 and 4, the mobile terminal device 10 includes a power receiving unit 16 held by the housing 11, a power feeding unit 18 provided in the battery pack 14, and one end 21 </ b> A in the power feeding unit 18. The connected flexible circuit board 21 and the connector part 23 connected to the other end part 21B of the flexible circuit board 21 are provided.

  In addition, as shown in FIGS. 5 and 6, the mobile terminal device 10 includes a recess 25 provided on the back surface 11 </ b> B of the housing 11, a communication hole 26 provided on the bottom surface 25 </ b> A of the recess 25, and the recess 25. A lid 27 (see FIG. 3) to be closed and a waterproof member 28 (second waterproof member) surrounding the communication hole 26 are provided. Furthermore, the mobile terminal device 10 includes a hole 31 provided on the bottom surface 25 </ b> A and a water stop member 32 that covers the hole 31.

  Returning to FIGS. 1 and 2, the housing 11 includes a case 35 having an opening 37 (see FIG. 6) that accommodates the display unit 12, and a back surface (housing) that overlaps the case 35 and is opposite to the display unit 12. And a cover 36 that forms a back surface 11B.

The case 35 has an opening 37 formed on the surface 11A (that is, the surface of the housing 11). The display unit 12 is provided in the opening 37. The cover 36 is formed with a pack opening 38 formed on the back surface 11 </ b> B opposite to the display unit 12 in the housing 11 and a recess 25 (see FIG. 6) formed adjacent to the pack opening 38. Has been. The surface 14A of the battery pack 14 is exposed in the pack opening 38, and the lid 27 is attached to the recess 25.
As shown in FIG. 3, the lid portion 27 is attached with a plurality of fastening screws 57 so that the user cannot easily remove it. By preventing the lid portion 27 from being easily removed, the mobile terminal device 10 is provided with tamper resistance that prevents reading of data by unauthorized means.

  The circuit board 13 is formed in a substantially rectangular shape, and is provided in the upper half portion 35 </ b> A of the case 35. The battery pack 14 is formed in a substantially rectangular shape in plan view with the upper side 14B, the lower side 14C, and the pair of side sides 14D, 14E, and is accommodated in the lower half portion 35B of the case 35 through the pack opening 38 of the cover 36. This is provided adjacent to the circuit board 13. The storage part of the cell main body of the battery pack 14 is surrounded by an upper side 14B, a lower side 14C, and a pair of side sides 14D and 14E, and is sandwiched between the front surface 14A and the back surface 14F on the opposite side. is there.

  The area of the front surface 14 </ b> A of the battery pack 14 when viewed from the back surface 11 </ b> B side when attached to the pack opening 38 of the housing 11 is larger than that of the storage portion of the cell body of the battery pack 14. On the back side of the flange portion 15 outside the portion surrounded by the upper side 14B, the lower side 14C, and the pair of side sides 14D, 14E on the surface 14A of the battery pack 14, a frame-shaped waterproof member 17 (first Waterproof member) is provided.

  The frame-shaped waterproof member 17 is for preventing liquid and dust from entering the inside of the pack opening 38 formed on the back surface 11 </ b> B of the housing 11. The frame-shaped waterproof member 17 is provided on the back side of the flange portion 15 of the battery pack 14 and surrounding the upper side 14B, the lower side 14C, and the pair of side sides 14D, 14E. The frame-shaped waterproof member 17 is in contact with the side wall of the pack opening 38 and receives a compressive force when the battery pack 14 is attached to the pack opening 38 of the housing 11. In particular, the width of the frame-shaped waterproof member 17 increases along the lower side 14 </ b> C of the battery pack 14 between the portions fixed by the two lock mechanisms 19 at the bottom of the cover 36 of the housing 11. (See FIG. 6).

  This wide portion is exactly the same as the power supply unit 18 on the upper side 14B of the battery pack 14 with the storage part of the cell body of the battery pack 14 surrounded by the upper side 14B, the lower side 14C and the pair of side sides 14D, 14E interposed therebetween. On the other side. Since the previous compressive force is particularly large in the wide portion, the repulsive force provides a stronger connection between the power feeding unit 18 of the battery pack 14 and the power receiving unit 16 on the housing 11 side of the mobile terminal device 10. It will be something. And it can prevent that the electric power feeding part 18 and the power receiving part 16 are exposed to a liquid and dust.

  The power receiving unit 16 includes a power receiving case 43 held approximately at the center in the inside 41 of the housing 11 and a plurality of power receiving terminals 44 (terminal plates) provided on a surface 43 </ b> A facing the power feeding unit 18 of the power receiving case 43. I have. One end of each of the plurality of power receiving terminals 44 is held on one surface of the power receiving case 43 of the power receiving unit 16. As shown in FIGS. 6 and 7, the power reception unit 16 is disposed in a storage unit 59 provided on a metal frame 50 located substantially in the center in the thickness direction (Z-axis direction) inside the housing 11. Further, buffer members 45 (rectangular portions at both ends of the power receiving unit 16 in FIG. 8) are attached to both ends of the power receiving unit 16 orthogonal to the arrow A direction (arrow X direction). When the power receiving unit 16 is disposed in the storage unit 59, the buffer member 45 is compressed.

  As shown in FIGS. 7 and 8, the plurality of power receiving terminals 44 are formed in a plate shape or a belt shape, and have a predetermined interval along the thickness direction (arrow A direction (arrow X direction)) of each power receiving terminal 44. They are arranged in a comb-teeth shape with a space S. Further, the plurality of power receiving terminals 44 are parallel to the surface direction of the circuit board 13, that is, parallel to the component mounting surface, and the arrangement direction of the circuit board 13 and the battery pack 14 (the longitudinal direction of the housing 11, see FIGS. 2 to 6). That is, they are arranged along a direction orthogonal to the arrow B direction (arrow Y direction). In other words, in each of the plurality of power receiving terminals 44, one of the two widest parallel surfaces is parallel to one of the two widest surfaces of the adjacent power receiving terminals and is orthogonal to the widest two surfaces. It is arranged along the direction, that is, the direction (arrow A direction, arrow X direction) in which the plurality of power receiving terminals 44 are arranged.

  Returning to FIG. 4, the power supply unit 18 is provided on the upper side 14 </ b> B of the battery pack 14 facing the power reception unit 16. Similar to the power reception unit 16, the power supply unit 18 includes a plurality of power supply terminals 46 formed in a band shape. The plurality of power supply terminals 46 are arranged so as to be connectable to the power receiving terminals 44.

  Therefore, the power supply unit 18 is connected to the power receiving unit 16 in a state where the battery pack 14 is accommodated in the pack opening 38 in the lower half portion 35 </ b> B of the case 35 through the pack opening 38 of the cover 36. The battery pack 14 is fixed to the pack opening 38 by a connecting portion between the power feeding unit 18 and the power receiving unit 16 and two locking mechanisms 19 (see FIG. 3) at the lowermost part of the cover 36 of the housing 11. . In this accommodated state, the power receiving unit 16 and the power feeding unit 18 are seen from the pack opening side, and the frame-shaped waterproof member 17 provided on the back side of the flange portion 15 of the surface 14A of the battery pack 14 described above. It is located inside the pack opening 38, that is, inside the housing 11 than the (first waterproof member). Therefore, since the power receiving unit 16 and the power feeding unit 18 are not exposed to liquid or dust from the outside, the battery pack 14 can be exchanged and can be waterproof and dustproof.

  In particular, this point is important when the mobile terminal device 10 of the first embodiment is operated for a long time outside the office or sales office, such as settlement, collection and delivery in a diplomatic activity, and warehouse management work. . This is because it is difficult to drive the mobile terminal device 10 for a long time with only one battery pack 14. That is, the battery pack 14 must be exchangeable outside. Moreover, in such a scene, the mobile terminal device 10 is operated externally, so that it is easy to receive rainwater or dust that is wound up by wind. Therefore, in a state where the battery pack 14 is accommodated in the pack opening 38 of the casing 11, liquid such as rain water or dust does not enter the inside of the pack opening 38 having the power feeding unit 18 and the power receiving unit 16. It is necessary to do so. The above-described configuration according to the present embodiment satisfies all the battery pack 14 exchangeability, waterproofness, and dustproofness.

  As shown in FIGS. 7 and 8, the flexible circuit board 21 has one end 21 </ b> A connected to the power receiving unit 16 and the other end 21 </ b> B connected to the connector 23. The flexible circuit board 21 includes a first board portion 47 that is folded in a U-shape from the power receiving section 16 in the longitudinal direction of the casing 11, and a connector section that extends from the end 47 </ b> A of the first board section 47 in the lateral direction of the casing 11. And a second substrate portion 48 extending to 23.

  The second substrate part 48 has a bending / extending part 51 that can bend and extend along the arrangement direction (arrow A direction (arrow X direction)) of the power receiving part 16 and the connector part 23. The bending portion 51 is formed in a bellows shape by having a plurality of portions 52 in which the predetermined position of the second substrate portion 48 protrudes along the thickness direction (arrow C direction (arrow Z direction)) of the flexible circuit board 21. . That is, the flexible circuit board 21 has a bending / extending portion that can bend and stretch along the direction (arrow A direction, arrow X direction) in which the plurality of power receiving terminals 44 of the power receiving portion 16 are arranged.

  In the first embodiment, an example in which a plurality of protruding portions 52 are provided as the bending / extending portions 51 will be described. However, the present invention is not limited thereto, and it is also possible to provide one protruding portion 52 as the bending / extending portions 51.

  By having the bending portion 51 on the second substrate portion 48, the bending portion 51 can be bent and stretched along the arrangement direction of the power receiving portion 16 and the connector portion 23 (arrow A direction (arrow X direction)). Further, by forming the bent portion 51 along the thickness direction of the flexible circuit board 21 (the arrow C direction (the arrow Z direction shown in FIG. 8)), the bent portion 51 is folded or the circuit board 13 is The occupied space in the interior 41 of the housing 11 can be reduced as compared with the form protruding in parallel with the component mounting surface.

  The connector unit 23 is provided on the circuit board 13 and is connected to the power receiving unit 16 via the flexible circuit board 21. The connector portion 23 is parallel to the component mounting surface of the circuit board 13 with respect to the power receiving portion 16 and parallel to the arrangement direction of the power receiving terminals 44 (arrow A direction (arrow X direction)). Are arranged.

  Here, as shown in FIG. 4, a case will be described in which the mobile terminal device 10 is dropped while the power feeding unit 18 of the battery pack 14 is connected to the power receiving unit 16. The battery pack 14 moves relative to the circuit board 13 due to an impact such as dropping of the mobile terminal device 10, and the power receiving unit 16 follows the battery pack 14 in the thickness direction of the power receiving terminal 44 (arrow A). (Direction of arrow X)).

  Therefore, as shown in FIGS. 7 and 8, the flexible circuit board 21 that connects the power receiving unit 16 and the connector unit 23 is provided with a bending portion 51, and the bending portion 51 is arranged along the arrangement direction of the power receiving unit 16 and the connector portion 23. It was possible to bend and stretch.

  Therefore, when the power receiving unit 16 moves in the plate thickness direction (arrow A direction (arrow X direction)) of the power receiving terminal 44 following the battery pack 14 due to an impact such as dropping, the bending portion of the flexible circuit board 21 is bent and stretched. be able to. The bending / extending part 51 can bend and stretch to absorb the movement of the power receiving part 16 in the direction of arrow A (arrow X direction) and prevent the movement of the power receiving part 16 from being transmitted to the connector part 23. Thereby, it can prevent that the connector part 23 remove | deviates from the circuit board 13 by impact, such as a fall of the portable terminal device 10. FIG.

  In addition, the power receiving unit 16 is not directly connected to the circuit board 13 but directly connected via the flexible circuit board 21 and the connector unit 23. For this reason, the circuit board 13 itself can be prevented from being damaged by an impact such as a drop transmitted to the power receiving unit 16.

  Furthermore, as described above, the buffer members 45 (rectangular portions at both ends of the power receiving unit 16 in FIG. 8) are attached to both ends of the power receiving unit 16 orthogonal to the arrow A direction (arrow X direction). . When the power receiving unit 16 is disposed in the storage unit 59, the buffer member 45 is compressed. Thereby, the vibration in the plate thickness direction (arrow A direction (arrow X direction)) of the power receiving terminal 44 of the power receiving unit 16 that is transmitted to the battery pack 14 due to an impact such as dropping of the mobile terminal device 10 is reduced. Also by this, the movement of the power receiving unit 16 can be prevented from being transmitted to the connector unit 23, and the connector unit 23 can be prevented from being detached from the board.

  In addition, each of the plate-like power receiving terminals 44 of the power receiving unit 16 is formed in a band shape, and is spaced apart from each other by a predetermined distance S along the thickness direction (arrow A direction (arrow X direction)) of each power receiving terminal 44. They are arranged in a comb shape. Furthermore, each plate-shaped power receiving terminal 44 is parallel to the component mounting surface of the circuit board 13 and orthogonal to the arrangement direction of the circuit board 13 and the battery pack 14 (arrow B direction (arrow Y direction)). Are arranged along. Each of the plate-like power receiving terminals 44 is parallel to the component mounting surface of the circuit board 13 and the thickness of the circuit board 13 and the battery pack 14 in the arrangement direction (arrow B direction (arrow Y direction)). The area is wider than the direction (arrow A direction (arrow X direction)). Each plate-like power receiving terminal 44 is also in the thickness direction of the circuit board 13, that is, in the thickness direction of the flexible circuit board 21 (arrow C direction (arrow Z direction shown in FIG. 8)). The area is wider than the direction of arrow A (arrow X direction).

  Therefore, even if the battery pack 14 moves in the direction of arrow B (arrow Y direction) or the thickness direction of the circuit board 13 (arrow C direction (arrow Z direction in FIG. 8)) due to an impact such as dropping of the mobile terminal device 10. It doesn't matter. The contact area between the power receiving unit 16 having a plurality of plate-shaped power receiving terminals 44 and the power supply unit 18 of the battery pack in these directions is the thickness direction (arrow A direction (arrow X direction) of each power receiving terminal 44. )) Wider than. Even if the relative position between the power receiving unit 16 and the power supply unit 18 of the battery pack 14 in these directions is slightly changed due to an impact such as dropping of the mobile terminal device 10, the plate-shaped power receiving terminals 44 included in the power receiving unit 16, Contact with the power supply unit 18 of the battery pack 14 is maintained.

  Furthermore, the flexible circuit board 21 includes a first substrate portion 47 that is folded back in a U shape from the power receiving portion 16 along the longitudinal direction of the housing 11. When the battery pack 14 moves in the direction of arrow B (arrow Y direction) or the thickness direction of the circuit board 13 (arrow C direction (arrow Z direction in FIG. 8)), the power receiving unit 16 and the connector unit 23 The relative position of can also change. The movement of the battery pack 14 in the plate thickness direction (arrow A direction (arrow X direction)) of each power receiving terminal 44 can be absorbed by the bending portion 51 provided on the second substrate portion 48 described above. is there. However, other than that, the direction of the battery pack 14 in the arrow B direction (arrow Y direction) or the thickness direction of the circuit board 13 (arrow C direction (arrow Z direction in FIG. 8)), particularly in the arrow B direction (arrow Y direction). About a motion, it may be difficult to absorb only by this bending part 51.

  With respect to the movement of the battery pack 14 in the direction of the arrow B (arrow Y direction) or the thickness direction of the circuit board 13 (arrow C direction (arrow Z direction in FIG. 8)), the flexible circuit board 21, particularly the power receiving unit. A U-shaped portion or a folded portion in the longitudinal direction of the housing 11 provided on the side close to 16, that is, the first substrate portion 47 is effective. Here, the longitudinal direction of the housing 11 is a direction parallel to the component mounting surface of the circuit board 13 and the arrangement direction of the circuit board 13 and the battery pack 14 (arrow B direction (arrow Y direction)). This direction is orthogonal to the plate thickness direction (arrow A direction (arrow X direction)) of each plate-like power receiving terminal 44 of the power receiving unit 16 and is parallel to the component mounting surface of the circuit board 13. It can also be said. Furthermore, the above-described direction can be said to be a direction in which each plate-like power receiving terminal 44 of the power receiving unit 16 extends and parallel to the component mounting surface of the circuit board 13. The U-shaped portion has a U-shape when viewed from a direction (arrow Z direction) orthogonal to the wiring surface of the flexible circuit board 21, and the wiring surface of the flexible circuit board 21 and each power receiving terminal 44 (terminal plate). In a direction parallel to the widest two surfaces (arrow B direction, arrow Y direction), the connector portion 23 and the bent portion 51 protrude to the opposite side of the power receiving portion 16. Thereby, the ability to absorb the impact transmitted through the battery pack 14 by the fall of the portable terminal device 10 etc. can further be improved.

  About the plate | board thickness direction (arrow A direction (arrow X direction)) of each remaining receiving terminal 44, as mentioned above, the indirect connection form to the circuit board 13 via the flexible circuit board 21 and the connector part 23 is mentioned. By taking, the influence of impact such as dropping is reduced. With the above configuration, supply of power can be prevented from being interrupted. In particular, when the mobile terminal device 10 of the first embodiment handles important data such as settlement, collection and delivery in a diplomatic activity, warehouse management work, etc., power is supplied during information processing or temporary storage of data. The loss of data leads to fatal data loss and destruction. According to the configuration of the first embodiment, such fatal data loss or destruction can be prevented.

  Further, as described above, the flange 15 on the surface 14A of the battery pack 14 has a frame-shaped waterproof member 17 for ensuring both the replaceability of the battery pack 14 and the waterproof and dustproof properties. Is provided. The frame-shaped waterproofing member 17 also has a function of reducing the impact applied to the battery pack 14 due to dropping of the mobile terminal device 10 or the like. That is, the power supply unit 18 of the battery pack 14 inside the pack opening 38 and the power reception unit 16 on the main body side of the mobile terminal device 10 connected thereto are applied to the battery pack 14 rather than the flange 15 on the surface 14A of the battery pack 14. Impact is also reduced. Thereby, the portable terminal device 10 of the first embodiment can improve the impact resistance while satisfying all of the exchangeability of the battery pack 14, the waterproof property, and the dustproof property.

  Next, the waterproof function of the mobile terminal device 10 will be described with reference to FIGS. 5, 6, 9 and 10. As shown in FIGS. 5 and 6, a recess 25 is provided adjacent to the pack opening 38 (see FIG. 3) on the back surface 11 </ b> B of the cover 36 (back surface of the housing 11). The recess 25 is formed in a substantially rectangular shape, and the bottom surface 25 </ b> A is formed inside the housing 11 with respect to the cover 36 along the peripheral wall 25 </ b> B.

  A communication hole 26 is provided in the bottom surface 25A. By providing the communication hole 26 on the bottom surface 25 </ b> A, the inside 41 and the outside 42 of the housing 11 are communicated. The communication hole 26 is a gadget mounting portion for mounting a desired module (gadget) 60 (see FIG. 9). The module 60 is electrically connected to the circuit board 13 inside the housing 11 and other circuit boards (not shown). That is, the communication hole 26 enables access to the circuit board 13 and other circuit boards from the outside of the housing 11.

  A groove portion 55 is formed in a frame shape so as to surround the communication hole 26 on the bottom surface 25A. By accommodating the frame-shaped waterproof member 28 (second waterproof member) in the groove portion 55, the communication hole 26 is surrounded by the waterproof member 28. When the concave portion 25 is closed with the lid portion 27 (see FIG. 3), the frame-shaped waterproof member 28 is disposed between the bottom surface 25A of the concave portion 25 and the back surface of the lid portion 27 and is in close contact with both. As a result, the recess 25 is closed by the lid portion 27, and the communication hole 26 is closed by the lid portion 27 and the waterproof member 28.

  A hole 31 is provided outside the waterproof member 28 on the bottom surface 25 </ b> A of the recess 25. The hole 31 is formed in a circular shape and is covered with a water stop member 32. The hole 31 is outside the waterproof member 28 (second waterproof member) accommodated in the groove 55 surrounding the communication hole 26 on the bottom surface 25A of the recess 25, and the recess 25 is covered with the lid 27 (FIG. 3). When the closed portion is closed, the inner side of the outer periphery of the concave portion 25 covered with the lid portion 27 is present.

  The water stop member 32 has a function of preventing liquid from passing from the outside 42 of the housing 11 to the inside 41 and allowing gas to pass between the inside 41 and the outside 42 of the housing 11. As this water stop member 32, Gore-Tex (trade name) is used as an example. Gore-Tex is manufactured by combining a film obtained by stretching polytetrafluoroethylene and a polyurethane polymer.

  Thus, by covering the hole 31 with the water stop member 32 that can pass gas, when the external pressure is applied to the housing 11 and the housing 11 is deformed to reduce the space inside the housing 11, Excess air in the space 41 is discharged from the hole 31. When the external pressure on the housing 11 is released, the housing 11 returns to the initial shape, and the space inside the interior 41 is restored to the original state. When the space in the interior 41 is restored to a negative pressure, the outside air is sucked into the space in the interior 41 from the hole portion 31, and the internal pressure in the space in the interior 41 is restored to the original state. This is because the hole 31 is outside the waterproof member 28 (second waterproof member) accommodated in the groove 55 surrounding the communication hole 26 on the bottom surface 25 </ b> A of the recess 25.

  On the other hand, since the hole 31 and the bottom surface 25 </ b> A of the recess 25 are outside the waterproof member 28 (second waterproof member) accommodated in the groove 55 surrounding the communication hole 26, there is no liquid around the hole 31. Intrusion is possible. However, the water stop member 32 that covers the hole 31 has a function of preventing liquid from passing from the outside to the inside of the housing 11. As a result, the water stop member 32 can prevent the splashed water or the like from entering the inside 41 of the casing 11 when the casing 11 is splashed or rained, and the waterproofness of the casing 11 is maintained. it can. Further, the water-stop member 32 covering the hole 31 is intruded of liquid or dust from the pack opening 38 (battery pack 14 housing portion) that houses the battery pack 14 due to the negative pressure applied to the housing 11. It also plays a role in preventing.

  Here, the hole 31 is only covered with a water stop member 32 made of a thin resin, such as Gore-Tex (trade name). Since this portion is easily broken, there is a possibility that unauthorized access to the circuit board 13 housed in the housing 11 may be permitted. However, as described above, the hole portion 31 is outside the waterproof member 28 (second waterproof member) accommodated in the groove portion 55 surrounding the communication hole 26 on the bottom surface 25A of the recess 25, and When the concave portion 25 is closed by the lid portion 27 (see FIG. 3), it is inside the outer periphery of the concave portion 25 covered by the lid portion 27. As shown in FIG. 3, the lid portion 27 is attached with a plurality of fastening screws 57 so that the user cannot easily remove it. By preventing the lid portion 27 from being easily removed, the portable terminal device 10 also has tamper resistance that prevents data from being read by unauthorized means while having waterproofness and dustproofness.

  As shown in FIGS. 9 and 10, the lid 27 (see FIG. 3) is removed by the manufacturer according to the user's application, and the desired module (gadget, additional function circuit) 60 is connected to the communication hole 26. It is attached as an option corresponding to. Examples of the desired module 60 include a card reader that reads the magnetism of a magnetic card. Even when these modules 60 are attached, they are attached with a plurality of fastening screws 57 so that the user cannot easily remove them. Therefore, the portable terminal device 10 has tamper resistance while having waterproofness and dustproofness.

  Thus, according to the portable terminal device 10, it is possible to attach a desired module 60, and further, it is possible to ensure both waterproof / negative pressure prevention and tamper resistance of the casing 11. That is, intrusion of liquid and dust from the communication hole 26 as well as the pack opening 38 (battery pack housing part) for housing the battery pack 14 is prevented. Further, it is possible to ensure waterproofness, dustproofness, and tamper resistance, and to attach or enable a desired module while not being affected by negative pressure.

  In the first embodiment, the example in which the waterproof member 28 (second waterproof member) is provided in the groove portion 55 of the bottom surface 25 </ b> A has been described. However, the present invention is not limited thereto, and the waterproof member 28 is provided on the back surface of the lid portion 27. Is also possible.

  Further, in the first embodiment, the example in which the desired module 60 is attached as an option corresponding to the communication hole 26 provided in the bottom surface 25A of the recess 25 has been described. -Both negative pressure prevention and tamper resistance can be achieved. That is when the module 60 is not installed as an option. Even in this case, liquid and dust are prevented from entering from the pack opening 38 (battery pack accommodating portion) that accommodates the battery pack 14 due to the negative pressure applied to the housing 11, and the tamper resistance is prevented. It is necessary to ensure sex.

  In this case, it is not necessary to provide the communication hole 26 for attaching the module 60 on the bottom surface 25 </ b> A of the recess 25. Therefore, it is not necessary to provide a frame-shaped waterproof member 28 (second waterproof member) that surrounds the communication hole 26 and is disposed between the bottom surface 25A of the recess 25 and the back surface of the lid portion 27 and closely contacts these. . The housing 11 includes a recess 25 provided in the housing 11, a lid portion 27 that closes the recess 25, and a hole portion 31 provided in a bottom surface 25 </ b> A of the recess 25. The hole 31 is covered with a water stop member 32 that cannot allow liquid to pass from the outside to the inside of the housing 11 and allows gas to pass between the inside and the outside of the housing 11. And the recessed part 25 should just be provided in the outer side of the pack opening part 38 (accommodation part of the battery pack 14) of the battery pack 14 in the housing | casing 11. FIG. If the recess 25 is inside the pack opening 38 of the battery pack 14, the battery pack 14 can be easily removed by the user, so that the water stop member 32 is easily broken. If it does so, reading of data by an irregular means cannot be prevented. Therefore, the recess 25 is provided outside the pack opening 38 (the battery pack 14 accommodating portion) of the battery pack 14 in the housing 11. If it does so, the penetration | invasion of the liquid and dust from the pack opening part 38 which accommodates the battery pack 14 by the influence of the negative pressure added to the housing | casing 11 can be prevented. In addition, since the lid 27 is attached with a plurality of fastening screws 57 so that the user cannot easily remove it, the portable terminal device 10 also has tamper resistance that prevents data from being read by unauthorized means. It is done.

  Next, 2nd Embodiment and 3rd Embodiment are described based on FIG. 11, FIG. In addition, in 2nd Embodiment and 3rd Embodiment, the same code | symbol is attached | subjected about the same similar member as the flexible circuit board 21 of 1st Embodiment, and description is abbreviate | omitted.

(Second Embodiment)
As shown in FIG. 11, the flexible circuit board 70 of the second embodiment is obtained by replacing the bending / extending part 51 of the first embodiment with a bending / extending part 71, and other configurations are the same as those of the flexible circuit board 21 of the first embodiment. It is the same.

  The bending portion 71 has a portion 72 where a predetermined position of the flexible circuit board 70 is folded back along the thickness direction (arrow C direction (arrow Z direction)). By providing the flexible circuit board 70 with the bending / extending part 71, the bending / extending part 71 can be bent and extended along the arrangement direction (arrow A direction (arrow X direction)) of the power receiving unit 16 and the connector part 23.

(Third embodiment)
As shown in FIG. 12, the flexible circuit board 80 of 3rd Embodiment replaces the bending part 51 of 1st Embodiment with the bending part 81, and the other structure is the flexible circuit board 21 of 1st Embodiment. It is the same.

  The bending portion 81 is formed in a bellows shape by having a plurality of portions 82 where the predetermined position of the flexible circuit board 80 protrudes in parallel with the component mounting surface of the circuit board 13.

  By providing the flexible circuit board 80 with the bending / extending part 81, the bending / extending part 81 can be bent and extended along the arrangement direction of the power receiving unit 16 and the connector part 23 (arrow A direction (arrow X direction)). Moreover, the occupation space in the thickness direction of the inside 41 of the housing | casing 11 (refer FIG. 1) can be made small by setting it as the form which the bending extension part 81 protrudes along the surface direction of the circuit board 13. FIG.

  Note that the mobile terminal device according to the present invention is not limited to the above-described embodiment, and can be appropriately changed and improved. For example, the portable terminal device, the casing, the display unit, the circuit board, the battery pack, the power receiving unit, the power feeding unit, the flexible circuit board, the connector unit, the recess, the communication hole, and the waterproofing used in the first to third embodiments. The shapes and configurations of the member, the hole, the water stop member, the power receiving terminal, the bending portion, and the like are not limited to those illustrated, and can be appropriately changed.

  The present invention is suitable for application to a mobile terminal device in which a circuit board is provided in a housing, a battery pack is accommodated adjacent to the circuit board, and a power feeding unit of the battery pack is connected to a power receiving unit in the housing. .

DESCRIPTION OF SYMBOLS 10 Portable terminal device 11 Housing | casing 11A Surface of housing | casing 12 Display part 13 Circuit board 14 Battery pack 16 Power receiving part 18 Power feeding part 21, 70, 80 Flexible circuit board 23 Connector part 25 Concave part 25A Concave bottom 26 Communication hole 27 Cover part 28 waterproof member 31 hole 32 water stop member 44 power receiving terminals 51, 71, 81 bending portion 41 inside of housing 42 outside of housing S predetermined interval

Claims (5)

A housing,
A circuit board housed in the housing;
A battery pack housed in the housing adjacent to the circuit board;
A power receiving unit held in the housing;
A plurality of terminal plates each having one end held on one surface of the power receiving unit;
A power feeding unit provided in the battery pack and connected to the power receiving unit;
A connector part provided on the circuit board and connected to the power receiving part via a flexible circuit board;
Each of the plurality of terminal boards has one of the two widest parallel surfaces parallel to one of the widest two surfaces of the adjacent terminal board and perpendicular to the widest two surfaces. Arranged along the
The said flexible circuit board is a portable terminal device which has a bending / extending part which can bend and stretch along the direction where these terminal boards are arrange | positioned. The mobile terminal device according to claim 1,
A U-shaped portion is provided between the power receiving unit and the bent portion of the flexible circuit board,
The U-shaped portion has a U-shape when viewed from a direction orthogonal to the wiring surface of the flexible circuit board, and in a direction parallel to the wiring surface of the flexible circuit board and the widest two surfaces of the terminal board, The portable terminal device which protrudes in the opposite side to the said power receiving part with respect to a connector part and the said bending extension part. In the portable terminal device according to claim 1 or 2,
The housing further includes a housing part for the battery pack,
The battery pack has a first waterproof member that is detachable from the housing part and prevents liquid and dust from entering the housing part,
In a state where a battery pack that can be attached to and detached from the housing portion is housed in the housing portion, the plurality of terminal plates included in the power receiving portion are located inside the housing portion rather than the first waterproof member of the battery pack. Mobile terminal device arranged in The mobile terminal device according to any one of claims 1 to 3,
A recess provided in the housing;
A lid for closing the recess;
A hole provided on the bottom surface of the recess,
The hole is covered with a water stop member that cannot pass liquid from the outside to the inside of the housing and allows gas to pass between the inside and the outside of the housing, and the recess is The portable terminal device provided in the outer side of the accommodating part of the battery pack in the housing. The mobile terminal device according to claim 4,
A communication hole that is provided on the bottom surface of the recess and allows access to the circuit board from the outside of the housing;
A frame-shaped second waterproofing member that surrounds the communication hole and is disposed between the bottom surface of the recess and the back surface of the lid, and is in close contact with them,
The hole is a mobile terminal device provided outside the second waterproof member on the bottom surface of the recess.

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