JP5455227B2 - Mobile communication terminal - Google Patents

Description

  The present invention relates to a mobile communication terminal in which two housings are movably connected.

  In a portable communication terminal, it is assumed that it is used in various places because of its portability. Therefore, a waterproof function against tap water, seawater, muddy water, detergent water, etc. is required.

  On the other hand, in recent years, the mainstream of portable communication terminals has a two-piece housing from the viewpoint of ensuring portability. Since the structure of the connection part between the casings is complicated, it is difficult to completely waterproof the water from the outside. For this reason, in a mobile communication terminal having a two-piece housing, measures against water entering the connecting portion between the housings are a major issue. Therefore, a mobile communication terminal described in Patent Document 1 has been proposed.

JP 2008-250617 A

  Patent Document 1 discloses a portable communication terminal in which a discharge hole for discharging water that has entered a connection portion is formed. However, this portable communication terminal only has a discharge hole, and it is difficult to clean the inside of the connection portion. For this reason, solutes and suspended particles contained in water may remain inside. Thereby, there is a concern that the sliding surface of the connecting portion and the surface of the flexible printed circuit board may be damaged, or the sliding portion of the connecting portion may be squeezed. In addition, there is concern about the propagation of various bacteria.

  The present invention has been made under the above-described circumstances, and an object thereof is to provide a mobile communication terminal capable of cleaning the inside of a connection portion that connects housings.

In order to achieve the above-described object, a mobile communication terminal according to the present invention includes:
A first housing;
A second housing movably connected to the first housing;
A cable wired over the first housing and the second housing;
A cover defining a space in which the cable is accommodated together with at least a part of the first casing and at least a part of the second casing;
Have
The first housing or the cover is formed with an introduction hole that leads to the space from the outside ,
Any one of the first housing, the second housing, and the cover is formed with a discharge hole that leads from the space to the outside.
Wherein the opening direction of the inlet hole and an opening direction of the discharge hole is characterized that you orthogonal.

  ADVANTAGE OF THE INVENTION According to this invention, the inside of the connection part which connects housing | casing can be wash | cleaned.

It is a perspective view which shows the mobile telephone which concerns on Embodiment 1 of this invention. It is a front view of a mobile phone. It is a disassembled perspective view of a mobile phone. (A) is a side view of the flexible printed circuit board in the closed state, and (B) is a side view of the flexible printed circuit board in the opened state. (A) is a ZX cross-sectional view of the mobile phone, and (B) is an XY cross-sectional view of the mobile phone. It is a figure which shows the washing | cleaning method of a mobile telephone. It is a perspective view which shows the flow of water. (A) is a figure which shows the flow of the water in the ZX cross section of a mobile telephone, (B) is a figure which shows the flow of the water in XY cross section, (C) shows the flow of the water in a ZY cross section. FIG. (A) is a side view which shows the modification of the flexible printed circuit board at the time of a closed state, (B) is a side view which shows the modification of the flexible printed circuit board at the time of an open state. (A) is a front view which shows the mobile telephone which concerns on Embodiment 2 of this invention, (B) is ZY sectional drawing of a mobile telephone. It is perspective XZ sectional drawing of a mobile telephone. (A) is a figure which shows the method of wash | cleaning a mobile telephone by the water flow from faucet T, (B) is a figure which shows the method of washing | cleaning a mobile telephone by the pumping of the water from the pump P.

Embodiment 1
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view of a mobile phone 10 (mobile communication terminal) according to the first embodiment. FIG. 2 is a plan view of the mobile phone 10. The mobile phone 10 can be in a closed state (closed state) as shown in FIG. 1 when being carried or the like, and can be in an unfolded state (open state) as shown in FIG. It is a foldable mobile phone. As shown in FIGS. 1 and 2, the mobile phone 10 includes a display-side casing 11, an operation-side casing 12, and a hinge piece 26 that covers a connection portion between the display-side casing 11 and the operation-side casing 12. ,have.

  FIG. 3 is an exploded perspective view of the mobile phone 10. As shown in FIG. 3, the display-side housing 11 is a rectangular parallelepiped plate-like case. Hinge portions 21 a and 21 b protruding in the + Y direction are formed at the + Y side end of the display-side housing 11. The hinge portions 21a and 21b are formed with holes penetrating in the X-axis direction. A hinge piece 25 protruding in the + Y direction is formed between the hinge portion 21a and the hinge portion 21b.

A liquid crystal unit composed of a liquid crystal panel or the like is accommodated inside the display side housing 11. The liquid crystal panel is visible from the −Z side of the display-side housing 11 and displays information such as images, figures, characters, and symbols.

  The hinge piece 25 is shaped so that its lower surface is convex upward. A semi-cylindrical hinge piece 27 is fixed to the lower side of the hinge piece 25. Thereby, a predetermined clearance is ensured between the hinge piece 25 and the hinge piece 27.

  Further, the hinge piece 25 is formed with a square introduction hole 25a penetrating in the Z-axis direction. A filter 30 is attached to the upper surface of the hinge piece 25 with, for example, a double-sided tape 31 so as to cover the introduction hole 25a. The filter 30 is a film that prevents the entry of suspended particles or the like contained in water.

  The operation side housing 12 is a rectangular parallelepiped plate-like case. As shown in FIG. 3, hinge portions 22 a and 22 b projecting in the + Z direction are formed at the + Y side end of the operation side housing 12. The hinge portions 22a and 22b are formed with holes penetrating in the X-axis direction.

  As can be seen from FIG. 2, the operation side housing 12 has a plurality of operation keys arranged on the surface thereof. In addition, for example, a circuit for detecting an input from an operation key, an electronic unit for controlling the liquid crystal unit, and the like are accommodated.

  The electronic unit arranged inside the operation side housing 12 and the liquid crystal unit arranged inside the display side housing 11 are electrically connected by the flexible printed circuit board 40.

  The flexible printed circuit board 40 is configured, for example, by laminating a base film made of an insulator, a conductor foil, and a coverlay. For example, a polyimide film is used for the base film and the coverlay. Moreover, copper is used for conductor foil, for example.

  FIG. 4A is a side view of the flexible printed circuit board 40 as viewed from the + X side. As shown in FIG. 4A, the flexible printed circuit board 40 is wound clockwise and shaped into a substantially cylindrical shape. Connectors 41 and 42 are attached to both ends of the flexible printed board 40. The connector 41 is connected to a connector provided below the hinge piece 25. The connector 42 is connected to a connector provided on the upper surface of the operation side housing 12 between the hinge portion 22a and the hinge portion 22b.

  Returning to FIG. 3, the hinge piece 26 is a cover that covers the flexible printed circuit board 40. The hinge piece 26 is formed with a rectangular discharge hole 26a penetrating in the Y-axis direction. The discharge hole 26a is shaped so that the opening area is smaller than the opening area of the introduction hole 25a. The hinge piece 26 is formed with a pair of curved portions 26b.

  The discharge hole 26 a is covered with a filter 32 that is attached to the + Y side surface of the hinge piece 26 with, for example, a double-sided tape 33. Similar to the filter 30, the filter 32 is a film that prevents entry of suspended particles and the like contained in water.

  The display-side casing 11 and the operation-side casing 12 described above are integrated as follows. First, the connectors 41 and 42 of the flexible printed circuit board 40 are connected to the display side casing 11 and the operation side casing 12, respectively. Next, the hinge shaft 23 is inserted through the holes of the hinge portions 21a and 22a from the + X side, and the hinge shaft 24 is inserted through the holes of the hinge portions 21b and 22b from the -X side. Thereby, the display side housing | casing 11 and the operation side housing | casing 12 are connected so that rotation is possible. Note that claw portions are formed at the tips of the hinge shafts 23 and 24, and each claw portion is hooked on the surface on the −X side of the hinge portion 22a and the surface on the + X side of the hinge portion 22b. .

  Next, the hinge piece 26 is fixed to the operation side housing 12 with the curved portions 26 b of the hinge piece 26 positioned on both sides of the hinge piece 25. Thereby, hinge part 22a, 22b and the flexible printed circuit board 40 are covered by the hinge piece 26. FIG.

  In the cellular phone 10 configured as described above, the opening direction of the discharge hole 26a and the opening direction of the introduction hole 25a are orthogonal to each other.

  As shown in FIG. 4A, in the cellular phone 10, when the cellular phone 10 is in a closed state, the clearance C between the overlapping flexible printed circuit board 40 and the flexible printed circuit board 40 is a predetermined distance. Is held by. As shown in FIG. 4B, when the mobile phone 10 is in the open state, the clearance C of the flexible printed circuit board 40 is smaller than the clearance C of the flexible printed circuit board 40 in the closed state. Become.

  5A and 5B are views showing a ZX section and an XY section of the mobile phone 10, respectively. As shown in FIGS. 5A and 5B, when the display-side casing 11 and the operation-side casing 12 are integrated, the space A is surrounded by hinge pieces 25, 26, 27, and the like. Is formed. In addition, inclined surfaces 34 and 35 that are inclined with respect to the X-axis direction are formed below the hinge piece 25 and inside the hinge piece 26.

  FIG. 6 is a diagram for explaining a method of cleaning the inside of the space A. As shown in FIG. 6, when the user cleans the mobile phone 10, first, the user places the mobile phone 10 in a closed state. Then, the + Y side end of the mobile phone 10 is put into the water of the water tank W. Then, the mobile phone 10 is swung in parallel with the opening direction (Z-axis direction) of the introduction hole 25a.

  When the user swings the mobile phone 10, the water in the water tank W enters through the filter 30 through the introduction hole 25a as shown in FIG. Then, it passes through the space A and is discharged from the discharge hole 26a through the filter 32.

  FIGS. 8A, 8 </ b> B, and 8 </ b> C are diagrams showing the flow of water in the ZX, XY, and ZY sections of the mobile phone 10, respectively. As shown in FIG. 8A, water enters the space A from the introduction hole 25a. Next, the water changes its flow from the -Z direction to the -X direction. Then, as shown in FIG. 8B, the clearance C and the outer periphery of the flexible printed circuit board 40 flow. Then, as shown in FIG. 8C, the flow is changed again from the −X direction to the −Z direction. Then, as shown in FIG. 8C, the water flows in the −Z direction and is discharged from the discharge hole 26a.

  As described above, the mobile phone 10 according to the first embodiment includes the introduction hole 25a and the discharge hole 26a. For this reason, the space A can be cleaned by introducing water into the space A from the introduction hole 25a and discharging it from the discharge hole 26a. Thereby, the solute, suspended particles, etc. remaining in the space A can be discharged. As a result, it is possible to prevent the sliding portion between the display-side housing 11 and the operation-side housing 12 or the surface of the flexible printed circuit board 40 from being damaged or the sliding portion from being squeezed. Moreover, propagation of various bacteria can be prevented.

  In the mobile phone 10, filters 30 and 32 are attached to the introduction hole 25a and the discharge hole 26a. For this reason, it is possible to prevent foreign matters having a predetermined size or more from entering the space A.

  The flexible printed circuit board 40 is formed so that the clearance C is increased when the mobile phone 10 is in the closed state and is decreased when the mobile phone 10 is in the opened state. For this reason, as shown in FIG. 6, when it is cleaned in the closed state, the solute, suspended particles, etc. remaining in the clearance C of the flexible printed circuit board 40 can be discharged well.

  Further, the discharge hole 26a is formed so that the area thereof is smaller than the area of the introduction hole 25a. For this reason, when the mobile phone 10 is washed, water is not only discharged from the discharge hole 26a, but also from a gap between the hinge piece 25 and the hinge piece 26, which becomes a sliding portion during the opening / closing operation of the mobile phone 10. Discharged. Therefore, since the sliding part can be washed, it is possible to prevent the sliding part from being scratched or itched.

  The opening direction of the introduction hole 25a is orthogonal to the opening direction of the discharge hole 26a. For this reason, when the mobile phone 10 is washed by shaking in a direction parallel to the opening direction of the introduction hole 25a, it becomes difficult for water to flow in from the discharge hole 26a, and water in the space A is easily discharged.

  Further, inclined surfaces 34 and 35 are formed on the inner surface of the space A. For this reason, the water which passes through the space A can be smoothly flowed without stagnation.

  FIG. 9A and FIG. 9B show a modification of the flexible printed circuit board 40. In the first embodiment, the surface of the flexible printed circuit board 40 is formed smoothly as shown in FIGS. 5 (A) and 5 (B). Not only this but as shown in Drawing 9 (A) and Drawing 9 (B), a plurality of projections 43 may be formed in the surface of flexible printed circuit board 40. By forming the protrusions 43, as shown in FIG. 9B, the flexible printed circuit board 40 can ensure a predetermined clearance C even when the cellular phone 10 is in a closed state. For this reason, even when the mobile phone 10 is deployed and cleaned, the solute, suspended particles, etc. remaining in the clearance C of the flexible printed circuit board 40 can be discharged well. Further, when the user repeatedly opens and closes the mobile phone 10, the surface of the flexible printed circuit board 40 can be slid and the solute, suspended particles, etc. remaining in the clearance C can be scraped out.

  Moreover, in the said modification, although the protrusion 43 is formed toward the outer peripheral side of the flexible printed circuit board 40, it is not restricted to this, The protrusion 43 is formed toward the inner peripheral side of the flexible printed circuit board 40. May be.

  Further, a cover may be attached to the introduction hole 25a and the discharge hole 26a except during cleaning. This makes it difficult for foreign matter to enter the space A. In this case, the filters 30, 32 and the double-sided tapes 31, 33 can be reduced.

  In Embodiment 1, the shapes of the openings of the introduction hole 25a and the discharge hole 26a are a square and a rectangle, respectively, but are not limited thereto, and may be a circle or a polygon.

  In the first embodiment, the surfaces of the inclined surfaces 34 and 35 are flat surfaces, but the surface is not limited to this and may be curved surfaces.

<< Embodiment 2 >>
Next, Embodiment 2 of the present invention will be described with reference to FIGS. In addition, about the structure same or equivalent to Embodiment 1, while using the same code | symbol, the description is abbreviate | omitted or simplified.

  FIG. 10A is a front view of the mobile phone 110 according to Embodiment 2 of the present invention. As shown in FIG. 10A, in the cellular phone 110, the operation unit is exposed by sliding the display side casing 111 from the closed state where the display side casing 111 and the operation side casing 112 overlap. It is a slide type mobile phone that is opened. The mobile phone 110 includes a display side casing 111 and an operation side casing 112.

  FIG. 10B is a diagram showing a ZY cross section of the mobile phone 110. As shown in FIG. 10B, the display-side casing 111 is formed so that the thickness in the Z-axis direction increases stepwise in the + Y direction. In addition, the operation-side casing 112 is formed so that the thickness in the Z-axis direction is gradually increased in the −Y direction.

  A liquid crystal unit composed of a liquid crystal panel or the like is accommodated in the display side casing 111. A plurality of operation keys are arranged on the surface of the operation side housing 112. And, for example, a circuit for detecting an input from an operation key, an electronic unit for controlling the liquid crystal unit, and the like are accommodated therein.

  The electronic unit arranged inside the operation side casing 12 and the liquid crystal unit arranged inside the display side casing 11 are electrically connected by a flexible printed circuit board 140. The flexible printed circuit board 140 is loosened when the cellular phone 110 is in a closed state, and is loosened when the cellular phone 110 is in an open state.

  A circular introduction hole 112 a that penetrates in the Z-axis direction is formed on the −Z side of the operation side housing 112. The filter 30 is attached to the −Z side of the operation side housing 112 with, for example, a double-sided tape 31 or the like. In addition, the gaps 124 and 125 in which the gaps 124 and 125 are formed between the display-side casing 111 and the operation-side casing 112 are, for example, 0.5 mm.

  FIG. 11 is a perspective XZ sectional view of the mobile phone 110. As shown in FIG. 11, recesses 121 that are recessed in the + Z direction are formed on the + X side and −X side edges of the lower surface of the display-side housing 111. Further, convex portions 122 protruding in the + Z direction are formed on the + X side and −X side edges of the upper surface of the operation side housing 112. A gap 123 is formed between the concave portion 121 and the convex portion 122. The gap 123 is formed with a length smaller than the gaps 124 and 125. The length of the gap 123 is, for example, 0.15 mm.

  As can be seen from FIG. 10B, a space B is formed between the display-side housing 11 and the operation-side housing 12 by fitting the convex portion 122 to the concave portion 121. Inclined surfaces 113 and 114 that are inclined with respect to the Y-axis direction are formed on opposing surfaces of the display-side housing 11 and the operation-side housing 12.

  FIG. 12A is a diagram illustrating a method of cleaning the mobile phone 110 with a water flow from the faucet T. FIG. As shown in FIG. 12A, when the user cleans the mobile phone 110, the user applies the water flow from the tap T to the introduction hole 112a. Then, water enters the space B from the introduction hole 112a. The water flows in the + Y direction and the −Y direction, and is preferentially discharged from the gaps 124 and 125 larger than the gap 123.

  FIG. 12B is a diagram illustrating a method of cleaning the mobile phone 110 by pumping water from the pump P. In this case, the user inserts the auxiliary tools J1 and J2 into the gaps 124 and 125, respectively, and closes the gaps 124 and 125 in advance. The attachment of the pump P is attached to the introduction hole 112a, and water is pumped from the pump P. Then, the water that has entered from the introduction hole 112 a is discharged from the gap 123 because the gaps 124 and 125 are closed.

  As described above, the mobile phone 110 according to the second embodiment includes the introduction hole 112a. For this reason, the space A can be cleaned by introducing water into the space A from the introduction hole 112a. Thereby, the solute, suspended particles, etc. remaining in the space B can be discharged.

  A filter 30 is attached to the introduction hole 112a. For this reason, it is possible to prevent foreign matters having a predetermined size or more from entering the space B.

  In addition, inclined surfaces 113 and 114 that are inclined with respect to the Y-axis direction are formed on the inner surface of the space B. For this reason, the water which passes through the space B can be smoothly flowed without stagnation.

  Further, a cover may be attached to the introduction hole 112a except during cleaning. This makes it difficult for foreign matter to enter the space B. In this case, the filter 30 and the double-sided tape 33 can be reduced.

  In the second embodiment, the shape of the opening of the introduction hole 112a is circular, but is not limited thereto, and may be a polygon.

  In the mobile phone 110 according to the second embodiment, the discharge hole is not formed. However, the present invention is not limited to this, and the discharge hole may be separately formed.

  As mentioned above, although Embodiment 1 and Embodiment 2 were demonstrated, this invention is not limited to said each embodiment.

  For example, in each of the embodiments described above, the mobile phones 10 and 110 are a foldable mobile phone and a slide-type mobile phone, respectively, but are not limited to this, a rotary two-axis hinge type, a rotary type (revolver type), and the like. It may be a mobile phone.

  Further, the mobile phone 10 is cleaned by putting it in the water of the water tank W and swinging, and the mobile phone 110 is cleaned by flowing water from the tap T or pumping water from the pump P. However, the present invention is not limited to this, and the mobile phone 10 may be washed by flowing water from the faucet T or pumping water from the pump P, placing the mobile phone 110 in the water in the water tank W, and washing it. In addition, since it may be possible to wash with alcohol or detergent, the inside to be washed may be formed of a material resistant to detergent.

  Moreover, in the said Embodiment 1, although the filter 32 of the discharge hole 26a is attached via the double-sided tape 33, it is not restricted to this, You may attach the filter 32 so that attachment or detachment is possible. By removing the filter 32 and washing with water flow from the faucet T or pumping water from the pump P, the solute and suspended particles remaining in the space A of the mobile phone 10 can be discharged well.

  Further, in each of the above embodiments, the flexible printed circuit board 40 is used for connection between the liquid crystal unit housed in the display-side housings 11 and 111 and the electronic unit housed in the operation-side housings 12 and 112. 140 are used. However, the present invention is not limited to this, and a coaxial cable may be used.

The present invention is not limited to the mobile phone described in each of the above embodiments, but is also a PDA (Personal Digital).
Assistant), PHS (Personal Handy-phone System), notebook personal computer, wearable personal computer, calculator, electronic dictionary, electronic communication device such as an electronic game machine, and other information processing apparatuses.

  Various embodiments and modifications of the present invention are possible without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention, and do not limit the scope of the present invention.

  The mobile communication terminal of the present invention is suitable for use in a folding mobile phone or a sliding mobile phone.

  DESCRIPTION OF SYMBOLS 10,110 ... Mobile phone, 11, 111 ... Display side case, 12, 112 ... Operation side case, 21a, 21b, 22a, 22b ... Hinge part, 23, 24 ... Hinge shaft, 25, 26, 27 ... Hinge Piece, 25a, 112a ... introduction hole, 26a ... discharge hole, 26b ... groove, 30,32 ... filter, 31,33 ... double-sided tape, 34,35 ... inclined surface, 40,140 ... flexible printed circuit board, 41,42 ... Connector, 43 ... Projection, 113, 114 ... Inclined surface, 121 ... Concavity, 122 ... Convex, 123, 124, 125 ... Gap, A, B ... Space, C ... Clearance, J1, J2 ... Auxiliary tool, P ... Pump , T ... faucet, W ... aquarium

Claims (12)

A first housing;
A second housing movably connected to the first housing;
A cable wired over the first housing and the second housing;
A cover defining a space in which the cable is accommodated together with at least a part of the first casing and at least a part of the second casing;
Have
The first housing or the cover is formed with an introduction hole that leads to the space from the outside ,
Any one of the first housing, the second housing, and the cover is formed with a discharge hole that leads from the space to the outside.
Wherein the opening direction of the opening direction and the discharge hole of the inlet hole, a mobile communication terminal characterized that you orthogonal.   The mobile communication terminal according to claim 1, further comprising a filter that covers the introduction hole. Opening area of the discharge hole, the mobile communication terminal according to claim 1 or 2, characterized in that less than the opening area of the introduction hole. The portable communication terminal according to any one of claims 1 to 3 , further comprising a filter that covers the discharge hole. The second casing is connected to be rotatable about a rotation axis from a first position overlapping the first casing to a second position having a predetermined angle with respect to the first casing. the portable communication terminal according to any one of claims 1 to 4, characterized in that there. The cable according to claim 5, wherein the first and the electronic unit disposed in the housing, a flexible printed circuit board that electrically connects the electronic unit disposed in the second housing Mobile communication terminals. The flexible printed circuit board is shaped into a first state wound around the rotation axis,
When the second housing is in the first position, the first state is entered,
When the second housing is in the second position, the minimum value of the distance between the flexible printed boards is smaller than the minimum value of the distance between the flexible printed boards in the first state. The mobile communication terminal according to claim 6 . The portable communication terminal according to claim 6 or 7 , wherein a protrusion is formed on a surface of the flexible printed board. The cable according to claim 5, characterized in that the coaxial cable for connecting the electronic unit disposed inside of the first housing, and an electronic unit disposed inside of the second housing Mobile communication terminals. The mobile communication according to any one of claims 1 to 9 , wherein an inclined surface that is inclined with respect to a direction orthogonal to an opening direction of the discharge hole is formed on a surface that defines the space. Terminal. The cover is part of the first housing, the second housing relative to the first housing, any one of claims 1 to 4, characterized in that it is slidably connected The mobile communication terminal according to one item. The mobile communication terminal according to claim 11 , wherein an inclined surface that is inclined with respect to a direction orthogonal to an opening direction of the introduction hole is formed on a surface that defines the space.

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