WO2011114614A1 - 防水構造、防水方法及びこれらを用いた電子機器 - Google Patents
防水構造、防水方法及びこれらを用いた電子機器 Download PDFInfo
- Publication number
- WO2011114614A1 WO2011114614A1 PCT/JP2011/000558 JP2011000558W WO2011114614A1 WO 2011114614 A1 WO2011114614 A1 WO 2011114614A1 JP 2011000558 W JP2011000558 W JP 2011000558W WO 2011114614 A1 WO2011114614 A1 WO 2011114614A1
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- WIPO (PCT)
- Prior art keywords
- housing
- groove
- seal member
- waterproof structure
- main trunk
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
- F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
- F16J15/025—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with at least one flexible lip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
Definitions
- the present invention relates to a waterproof structure, a waterproof method, and an electronic device using these.
- a general waterproof structure is a seal by a rubber seal member.
- the seal member is integrally formed on one of the two members constituting the housing and the type in which the seal member is sandwiched between the two members constituting the housing, and the other member There is a type to sandwich.
- the sandwiching direction includes a direction perpendicular to the main surface of the housing (Z direction), a main surface direction of the housing (XY direction), and a combination thereof.
- FIG. 13A to 13E are external views of a commercially available folding mobile phone having a waterproof function.
- FIG. 13A is an external view showing the front surface in an open state (open state).
- the first casing 1 and the second casing 2 are connected by a hinge portion 3 so as to be foldable.
- a main display unit 4 is provided in the first housing 1.
- Various operation keys 5 are provided on the second housing 2.
- FIG. 13B is an external view showing the front surface in a folded state (closed state).
- the sub display unit 6 is provided on the surface of the first housing 1 opposite to the surface on which the main display unit 4 is provided.
- FIG. 13C is an external view showing a side surface in the closed state.
- the second housing 2 includes a front cover 7 and a rear cover 8.
- FIG. 13D is an external view showing the back surface in the closed state. As shown in FIG. 13D, a camera 9 and a removable battery cover 10 are provided on the surface of the second housing 2 opposite to the surface on which the operation keys 5 are provided.
- FIG. 13E is an external view showing the battery cover 10 in a removed state. As shown in FIG. 13E, the battery cover 10 is provided with a guide claw 10a.
- FIGS. 14A and 14B are XIV-XIV sectional views of FIG. 13D.
- FIG. 14A shows a state where the battery cover 10 is attached (fitted state)
- FIG. 14B shows a state where the battery cover 10 is removed (non-fitted state).
- the battery cover 10 includes an intermediate plate 10b made of a resin molded product, a seal member 10c made of silicon rubber, and an exterior cover 10d made of a resin molded product.
- the seal member 10c is an O-ring having a circular cross section and is integrally formed with the intermediate plate 10b.
- For the integral molding compression molding, transfer molding, injection (LIM) molding or the like is used.
- LIM transfer molding, injection
- a primer that generates an adhesive force is applied between the seal member 10c and the intermediate plate 10b before the integral molding.
- the intermediate plate 10b is joined to the exterior cover 10d with a double-sided tape or the like.
- This waterproof structure is a type in which a rubber seal member 10c is formed integrally with the battery cover 10 constituting the second housing 2 and sandwiched with the front cover 7 in the main surface direction of the second housing 2. is there. Thereby, the sealing member 10c is crushed and airtightness is ensured. Therefore, it is necessary to increase the thickness in the width direction (lateral direction in FIG. 14A) so that the front cover 7 and the intermediate plate 10b are not deformed by the repulsive force of the seal member 10c.
- the intermediate plate 10b is provided with a fitting concave portion
- the front cover 7 is provided with a fitting convex portion.
- Patent Document 1 discloses that a first case having a rubber-like packing with a lip around the inner periphery of the case and a second case having a U-groove for inserting the packing.
- casing comprised from these is disclosed.
- Patent Document 1 has a problem in that the contact area between the U-groove and the lip packing is small and the waterproof property is inferior.
- An object of the present invention is to provide a waterproof structure that is suitable for downsizing and thinning electronic devices and has excellent waterproof properties.
- the waterproof structure according to the present invention is: A first housing component; A second casing constituent member that is fitted with the first casing constituent member and constitutes the casing; An annular groove formed in the first housing component; An annular seal member provided in the second casing component member and inserted into the groove,
- the cross section of the seal member is A base part; A main trunk formed substantially vertically from the base portion; A valve portion that is formed in a triangular shape protruding from one side surface of the leading end side of the main trunk portion, In the non-fitted state, the tip angle ⁇ of the valve portion is an acute angle, and the angle ⁇ formed by the valve portion and the main trunk portion is 90 ° or less, In the fitted state, the main portion and the valve portion are accommodated in a sealed space constituted by the base portion and the groove portion.
- the waterproofing method is: Forming an annular groove in the first housing component; A step of providing an annular seal member inserted into the groove on a second housing component fitted to the first housing component; Inserting the seal member into the groove and fitting the first and second housings,
- the cross section of the seal member is A base part; A main trunk formed substantially vertically from the base portion; A valve portion that is formed in a triangular shape protruding from one side surface of the leading end side of the main trunk portion, In the non-fitted state, the tip angle ⁇ of the valve portion is an acute angle, and the angle ⁇ formed by the valve portion and the main trunk portion is 90 ° or less, In the fitted state, the main portion and the valve portion are accommodated in a sealed space constituted by the base portion and the groove portion.
- FIG. 1 It is a perspective view which shows the external appearance of the folding portable telephone which concerns on 1st Embodiment. It is a disassembled perspective view which shows the structure of the folding portable telephone which concerns on 1st Embodiment. It is a front view in the open state of the folding portable telephone which concerns on 1st Embodiment. It is a front view in the closed state of the folding cellular phone according to the first embodiment. It is a side view in the closed state of the folding cellular phone according to the first embodiment. It is a rear view in the closed state of the folding portable telephone which concerns on 1st Embodiment. It is a front view of the battery cover of the folding mobile phone according to the first embodiment.
- FIG. 3D is a cross-sectional view (fitted state) taken along line III-III in FIG. 2D.
- FIG. 3D is a cross-sectional view taken along the line III-III in FIG. 2D (non-fitted state).
- FIG. 10B is a cross-sectional view taken along the line Xb-Xb of FIG. 10A.
- FIG. 14 is a sectional view (fitted state) taken along the line XIV-XIV in FIG. 13D.
- FIG. 14 is a cross-sectional view (non-fitted state) of XIV-XIV in FIG. 13D.
- FIG. 1A is a perspective view showing an appearance of the folded mobile phone according to the first embodiment in an open state.
- FIG. 1B is an exploded perspective view in the open state showing the configuration of the folding mobile phone according to the first embodiment.
- the folding mobile phone according to the first embodiment includes a first casing 101, a second casing 102, and a hinge portion 103.
- the main surface of the housing is the XY plane, and the direction perpendicular to the main surface of the housing is the Z direction.
- a first housing 101 covers a transparent front panel 101a that covers the front surface of a display device (not shown), a front cover 101b that houses the display device, and a back surface of the display device.
- a rear cover 101c is provided.
- the front cover 101b and the rear cover 101c are joined by a double-sided tape.
- the second casing 102 includes a key sheet 114 that covers the operation keys 105 (see FIG. 2A), a battery 111, a front cover 107 that houses a main board (not shown), and a battery 111.
- the front cover 107 is provided with a detachable I / O cover 113 for protecting the I / O connector.
- the rear cover 108 is screwed to the front cover 107.
- the key sheet 114 and the front cover 107 are joined by a double-sided tape.
- the battery cover 110 and the I / O cover 113 are fitted into the front cover 107, respectively.
- the mobile phone includes a display device (not shown) housed in the first housing 101, a main board (not shown) housed in the second housing 102, Is provided with a flexible substrate 112 for electrically connecting the two.
- the flexible substrate 112 includes an opening (not shown) provided in the front cover 101b of the first casing 101 and an opening 76 (see FIG. 6) provided in the front cover 107 of the second casing 102. Reference) is arranged. The two openings are fitted by elastic members formed on the flexible substrate 112.
- FIG. 2A is a front view of the folding mobile phone according to the first embodiment in an open state.
- the first casing 101 and the second casing 102 are connected to each other by a hinge portion 103 so as to be foldable.
- a main display unit 104 is provided in the first housing 1.
- Various operation keys 105 are provided on the second housing 2.
- FIG. 2B is a front view of the folded mobile phone according to the first embodiment in a closed state.
- a sub display unit 106 is provided on the surface of the first housing 101 opposite to the surface on which the main display unit 104 is provided.
- FIG. 2C is a side view of the folded mobile phone according to the first embodiment in a closed state.
- the second housing 102 includes a front cover 107, a rear cover 108, and a battery cover 110.
- FIG. 2D is a rear view of the folded mobile phone according to the first embodiment in a closed state.
- a camera 109 and a detachable battery cover 110 are provided on the surface of the second housing 102 opposite to the surface on which the operation keys 105 are provided.
- FIG. 2E is a front view of the battery cover of the folding mobile phone according to the first embodiment. As shown in FIG. 2E, the battery cover 110 is provided with guide claws 110a.
- 3A is a cross-sectional view (fitted state) taken along the line III-III in FIG. 2D.
- 3B is a cross-sectional view (non-fitted state) taken along the line III-III in FIG. 2D.
- the battery cover 110 includes a sealing member 110c made of an elastic body and an exterior cover 110b made of a resin molded product.
- the seal member 110c has a hook shape in cross section, and is formed in a ring shape (annular shape) along the periphery of the exterior cover 110b. Further, the seal member 110c is integrally formed with the exterior cover 110b.
- this elastic body consists of the elastomer which mixed resin and rubber
- the front cover 107 of the second housing 102 is formed with a groove 71 into which the seal member 110c having a hook-shaped cross section is fitted in the fitted state shown in FIG. 3A.
- the overall shape of the seal member 110c and the groove 71 into which the seal member 110c is fitted will be described later with reference to FIGS. 6, 7A, and 7B.
- FIG. 4A is a cross-sectional view of the seal member 110c according to the first embodiment.
- FIG. 4B is a cross-sectional view of the groove 71 of the front cover 107 according to the first embodiment.
- the seal member 110c includes a hook base (base portion) BH, a main trunk portion TH, and a hook valve (valve portion) VH.
- the main trunk TH is formed substantially perpendicular to the hook base BH and has a certain width (thickness) W2.
- the main trunk TH is divided into a hook rib RH on the hook base BH side and a hook head HH on the tip side for convenience.
- the hook head HH connects the hook valve VH and the hook rib RH.
- the hook valve VH is formed to protrude in a substantially triangular shape from one side surface of the front end side of the main trunk TH.
- the cross section of the hook valve VH is formed so as to protrude in a substantially triangular shape with one side surface of the hook head HH as a base. That is, the hook valve VH is thin at the tip and is thick at the base (boundary surface between the hook valve VH and the main portion TH). Further, as shown in FIGS. 3A and 3B, the hook valve VH is preferably formed so as to protrude toward the outside of the housing. However, it may be formed to protrude toward the inside of the housing.
- the angle (hook angle) ⁇ formed by the hook valve VH and the main trunk TH is preferably 90 ° or less.
- the tip angle of the hook valve VH (the angle formed by the other two sides of the triangle with one side of the hook head HH as the base, which is called the hook valve angle) ⁇ is preferably an acute angle.
- the tip of the hook valve VH may have a rounded shape.
- the hook valve angle is also an angle formed by an extension line of the other two sides of the triangle with one side surface of the hook head HH as a base, and is preferably an acute angle.
- the substantially triangular shape includes a shape having a rounded tip.
- the height from the boundary surface between the main portion TH and the tip of the hook valve VH) W1, the width W2 of the main portion TH, the width W1 + the width W2 the width W3, the hook valve angle ⁇ , and the hook angle ⁇ .
- the cross-sectional dimension of the front cover 107 is defined by the width W4 and the height H4 of the groove 71. In the present embodiment, as shown in FIG.
- the entire thickness of the front cover 107 in the main surface direction (XY direction) of the front cover 107 is 1.6 mm.
- the inner side of the groove portion 71 (inside the casing) is 0.40 mm.
- the seal member 110c can be repeatedly elastically deformed without being plastically deformed.
- FIG. 5A to 5E are sectional views showing a fitting mechanism between the battery cover 110 and the front cover 107 according to the first embodiment.
- FIG. 5A shows a state where the battery cover 110 and the front cover 107 are not yet fitted (non-fitted state).
- FIG. 5B shows a state in which the seal member 110c of the battery cover 110 is inserted into the groove 71 of the front cover 107, and the outer surface of the hook valve VH and the outer surface of the groove 71 begin to contact.
- the hook valve VH comes into contact with the outer surface of the groove portion 71
- the hook valve VH starts to bend and deform in a direction in which the hook angle ⁇ decreases.
- a rotational moment is generated in the hook head HH. Therefore, the hook head HH starts to be rotationally deformed in a direction in which the side surface of the hook head HH is separated from the inner surface of the groove 71.
- the inner side surface means the side surface inside the housing
- the outer surface means the side surface outside the housing (the same applies hereinafter).
- FIG. 5C and 5D show a state where the seal member 110c is further inserted into the groove 71.
- FIG. The inner surface of the hook rib RH and the inner surface of the groove 71 are always in close contact.
- the rotation of the hook head is stopped.
- the outer surface of the hook rib RH is compressed and deformed, the outer surface of the hook rib RH bends so as to wave. That is, a portion where the width of the hook rib RH is larger than that in the non-fitted state occurs.
- a gap is provided between the outer surface of the hook rib RH and the outer surface of the groove portion 71, the seal member 110 c can be smoothly fitted into the groove portion 71.
- FIG. 5E shows a state in which the seal member 110 c is completely inserted into the groove 71.
- the main portion TH and the hook valve VH are housed in the sealed space formed by the hook base BH and the groove portion 71. Therefore, the upper surface of the hook base BH of the seal member 110c and the upper surface of the front cover 107 constituting the groove 71 are in close contact. Further, the inner surface of the groove 71 and the inner surface of the trunk TH are in close contact with each other with a large contact area. Further, the outer surface of the groove 71 and the outer surface of the hook valve VH are in close contact with each other with a large contact area. As described above, since there are many portions where the seal member 110c and the front cover 107 are in close contact with each other and the contact area is increased, sealing performance, that is, waterproofness can be reliably ensured.
- the size of the waterproof structure itself can be reduced, so that a portable device using the waterproof structure can be reduced in size and thickness. The reason will be described below.
- the hook valve VH bends in the main surface direction (XY direction) of the second housing 102 to ensure sealing performance. Therefore, it is necessary to prevent the front cover 107 from being deformed by the bending repulsive force of the seal member 110c.
- this bending repulsive force is sufficiently smaller than the compression repulsive force of the silicon rubber sealing member 10c having a circular cross section shown in FIGS. 14A and 14B. Therefore, the thickness of the front cover 107 in the width direction (XY direction) can be reduced. Further, since the main trunk portion TH of the seal member 110c can be elastically deformed, the width W2 of the main trunk portion TH can also be reduced.
- the seal member 110c is easy to insert into the groove 71 because the hook angle ⁇ is 90 ° or less and the hook valve angle ⁇ is an acute angle.
- the hook valve VH is caught on the outer surface of the groove portion 71, and friction is increased, so that it is difficult to remove. That is, the fitting force is large. Therefore, the mechanical lock as shown in FIGS. 14A and 14B becomes unnecessary, and the size of the waterproof structure can be reduced. From the above, it is possible to reduce only the waterproof structure without sacrificing the space for the built-in object, that is, the function of the built-in object. Therefore, the portable device can be reduced in size and thickness.
- FIG. 6 is an overall perspective view of the front cover 107 according to the first embodiment.
- the front cover 107 is fitted with a groove 71 for fitting the battery cover 110, a battery housing space 72 for housing the battery 111, a main board housing space 73 for housing a main board (not shown), and a rear cover 108.
- An opening 77 and a groove 78 for fitting the I / O cover 113 and two pairs of screw holes 79a and 79b are provided.
- FIG. 7A is an overall perspective view of the battery cover 110 according to the first embodiment.
- FIG. 7B is an exploded perspective view of the battery cover 110 according to the first embodiment.
- the battery cover 110 includes an elastomer seal member 110c and a resin-molded exterior cover 110b.
- the seal member 110c is integrally formed in an annular shape along the periphery of the exterior cover 110b.
- FIG. 7C is a VIIc-VIIc sectional view of FIG. 7A.
- a seal member 110c having a hook shape in cross section is integrally formed on the periphery of the exterior cover 110b.
- FIG. 8A is an overall perspective view of the rear cover 108 according to the first exemplary embodiment.
- FIG. 8B is an exploded perspective view of the rear cover 108 according to the first exemplary embodiment.
- the rear cover 108 includes an elastomer seal member 108c and a resin-molded exterior cover 108b.
- the seal member 108c is integrally formed in a ring shape along the periphery of the exterior cover 108b, like the seal member 110c.
- the seal member 108c of the rear cover 108 is fitted into the groove 74 of the front cover 107 shown in FIG.
- the fitting mechanism is the same as that of the seal member 110c shown in FIG.
- FIGS. 3A and 3B can also be reduced in size when the waterproof structure shown in FIGS. 3A and 3B is applied to the rear cover 108 shown in FIGS. 8A and 8B. Therefore, a portable device using this can be reduced in size and thickness. In addition, the reliability of the waterproof function is improved. The reasons will be described below.
- the waterproof structure according to the comparative example will be described.
- the waterproof structure in the fitting of the front cover 7 and the rear cover 8 shown in FIG. 13C has a seal member (not shown) such as a rubber or elastomer O-ring in the vertical direction of the main surface of the housing (not shown). (Z direction).
- a seal member such as a rubber or elastomer O-ring in the vertical direction of the main surface of the housing (not shown). (Z direction).
- the seal member is crushed in the direction perpendicular to the main surface of the casing (Z direction) to ensure sealing. Therefore, it is necessary to increase the fitting force so that there is no gap in the height direction (Z direction) over the entire front cover 7 and rear cover 8 due to the compression repulsive force of the seal member. Therefore, in the non-waterproof type, there are a total of four screws, one at each of the four corners, whereas in the waterproof type, it is necessary to make a total of six screws, including two in the middle part in the longitudinal direction. That is, the screwing area has become large.
- the seal member is constantly crushed at a compression rate of about 30%, for example. Therefore, the amount of compression set of the seal member due to secular change is large, and the sealing performance is likely to deteriorate. That is, the reliability of the sealing performance is low.
- the waterproof structure according to the present embodiment is not a type in which the seal member 108c is sandwiched in the vertical direction (Z direction) of the main surface of the housing. Therefore, compared to the non-waterproof type, it is not necessary to increase the thickness of the front cover 107 and the rear cover 108 in the width direction (XY direction) and the height direction (Z direction).
- the seal member 108c is also easy to insert into the groove 74 because the hook angle ⁇ is 90 ° or less and the hook valve angle ⁇ is an acute angle.
- the hook valve VH is caught on the outer surface of the groove 74, and the friction is increased, so that it is difficult to remove. That is, since the fitting force is large, a mechanical lock is not required, and the size of the waterproof structure can be reduced. Also, the number of screws can be equal to or less than that of the non-waterproof type.
- the portable device can be reduced in size and thickness.
- the seal member 108c utilizes the deformation of the hook valve VH, the amount of compression is small, and the compression set deterioration due to secular change is small. Further, the seal member 108c having an appropriate shape and hardness is easy to be inserted into the groove 74 and does not undergo plastic deformation due to buckling. Further, the seal member 108c having an appropriate shape and hardness can improve the adhesion between the hook valve VH and the main trunk portion TH and the groove portion 74. When water pressure is generated due to submergence, the adhesion between the hook valve VH and the trunk TH and the groove 74 further increases. Further, the seal member 108c can absorb a shift in the main surface direction (XY direction) and a shift in the main surface vertical direction (Z direction) due to an external force. From the above, the reliability of the sealing performance is high.
- FIG. 9 is a perspective view of the I / O cover 113 according to the first embodiment.
- the I / O cover 113 includes an elastomer seal member 113c and a resin-molded exterior cover 113b.
- the seal member 113c is integrally formed in a ring shape along the periphery of the exterior cover 113b, like the seal member 110c.
- the seal member 113 c of the I / O cover 113 is fitted into the groove portion 78 of the front cover 107.
- the fitting mechanism is the same as that of the seal member 110c shown in FIG.
- FIG. 10A is an overall perspective view of battery cover 110 according to the second exemplary embodiment.
- 10B is a cross-sectional view taken along the line Xb-Xb of FIG. 10A.
- four stoppers 110d are provided to increase the fitting force.
- a stopper 110d is provided near the center of each side of the seal member 110c having a substantially rectangular shape.
- FIG. 10A is an overall perspective view of battery cover 110 according to the second exemplary embodiment.
- 10B is a cross-sectional view taken along the line Xb-Xb of FIG. 10A.
- four stoppers 110d are provided to increase the fitting force.
- a stopper 110d is provided near the center of each side of the seal member 110c having a substantially rectangular shape.
- each stopper 110d is provided in contact with the inner surface of the hook valve VH of the seal member 110c, the outer surface of the main trunk TH, and the upper surface of the outer side of the hook base. Since other configurations are the same as those of the first embodiment, description thereof is omitted.
- FIG. 11 is a cross-sectional view of a seal member 110c according to the third embodiment.
- the hook base BH, the main trunk TH, and the hook valve VH are integrally formed from the same material.
- the hook base BH and the hook rib RH are made of the same material, and the hook head HH and the hook valve VH are made of the same material. Since other configurations are the same as those of the first embodiment, description thereof is omitted.
- FIG. 12A is a schematic exploded perspective view showing the configuration of the second casing 2 according to the first embodiment.
- FIG. 12B is a schematic exploded perspective view showing the configuration of the second housing 2 according to another embodiment.
- the rear cover 108 is formed over the entire housing 102.
- a battery cover 110 is disposed below the rear cover 108.
- FIG. 12C is a schematic exploded perspective view showing the configuration of the second housing 2 according to another embodiment.
- the rear cover 108 is not provided. That is, the battery cover 110 is disposed below the front cover 107. Even if it is a structure like FIG. 12B and 12C, the waterproof structure which concerns on the said embodiment is applicable.
- the waterproof structure according to the embodiment of the present invention includes the front panel 101a and the front cover of the first casing 101 in addition to the rear cover 108, the battery cover 110, and the I / O cover 113 of the second casing 102.
- 101b, the rear cover 101c, the front cover 107 of the second housing 102, the key sheet 114, and the elastic body formed on the flexible substrate 112 are also applicable.
- the seal member 110c may have one or more stoppers that increase the fitting force.
- the stopper shape may be any shape such as a triangle, a square, a circle, an ellipse, and a polygon, and is not particularly limited.
- the hook rib RH may be made of a hard material such as resin or metal
- the hook valve VH and the hook head HH may be made of an elastic material, and only the hook valve VH and the hook head HH may be bent.
- the waterproof structure according to this embodiment is applicable not only to mobile phones but also to portable electronic devices such as portable game machines, portable computers, portable music players, desktop computers, various remote controllers, and other electronic devices.
- a first housing component A second casing constituent member that is fitted with the first casing constituent member and constitutes the casing; An annular groove formed in the first housing component; An annular seal member provided in the second casing component member and inserted into the groove,
- the cross section of the seal member is A base part; A main trunk formed substantially vertically from the base portion; A valve portion that is formed in a triangular shape protruding from one side surface of the leading end side of the main trunk portion, In the non-fitted state, the tip angle ⁇ of the valve portion is an acute angle, and the angle ⁇ formed by the valve portion and the main trunk portion is 90 ° or less, A waterproof structure in which the main trunk portion and the valve portion are housed in a sealed space composed of the base portion and the groove portion in a fitted state.
- the electronic device which is a mobile phone.
- Appendix 16 Forming an annular groove in the first housing component; A step of providing an annular seal member inserted into the groove on a second housing component fitted to the first housing component; Inserting the seal member into the groove and fitting the first and second housings,
- the cross section of the seal member is A base part; A main trunk formed substantially vertically from the base portion; A valve portion that is formed in a triangular shape protruding from one side surface of the leading end side of the main trunk portion, A waterproofing method in which the main trunk portion and the valve portion are housed in a sealed space composed of the base portion and the groove portion in a fitted state.
Abstract
Description
図13Cは、閉状態での側面を示す外観図である。図13Cに示すように、第2の筐体2はフロントカバー7とリアカバー8とを備えている。
図13Eは、取り外された状態のバッテリカバー10を示す外観図である。図13Eに示すように、バッテリカバー10にはガイド爪10aが設けられている。
第1の筐体構成部材と、
前記第1の筐体構成部材と嵌合され、筐体を構成する第2の筐体構成部材と、
前記第1の筐体構成部材に形成された環状の溝部と、
前記第2の筐体構成部材に設けられ、前記溝部に挿入される環状のシール部材と、を備え、
前記シール部材の断面は、
ベース部と、
前記ベース部から略垂直に形成された主幹部と、
前記主幹部の先端側の一側面から三角形状に突出して形成された弁部と、を備え、
非嵌合状態において、前記弁部の先端角αが鋭角であり、かつ、前記弁部と前記主幹部とのなす角θが90°以下であり、
嵌合状態において、前記ベース部と前記溝部とから構成される密閉空間内に、前記主幹部及び前記弁部が収納されるものである。
第1の筐体構成部材に環状の溝部を形成する工程と、
前記第1の筐体構成部材と嵌合される第2の筐体構成部材に、前記溝部に挿入される環状のシール部材を設ける工程と、
前記溝部に前記シール部材を挿入して前記第1及び第2の筐体を嵌合する工程と、を備え、
前記シール部材の断面は、
ベース部と、
前記ベース部から略垂直に形成された主幹部と、
前記主幹部の先端側の一側面から三角形状に突出して形成された弁部と、を備え、
非嵌合状態において、前記弁部の先端角αが鋭角であり、かつ、前記弁部と前記主幹部とのなす角θが90°以下であり、
嵌合状態において、前記ベース部と前記溝部とから構成される密閉空間内に、前記主幹部及び前記弁部が収納されるものである。
本発明の実施の形態について図面を参照して詳細に説明する。図1Aは、第1の実施の形態に係る折り畳み携帯電話機の開状態での外観を示す斜視図である。図1Bは、第1の実施の形態に係る折り畳み携帯電話機の構成を示す開状態での分解斜視図である。
図2Cは、第1の実施の形態に係る折り畳み携帯電話機を閉状態での側面図である。図2Cに示すように、第2の筐体102はフロントカバー107、リアカバー108、バッテリカバー110を備えている。
図2Eは、第1の実施の形態に係る折り畳み携帯電話機のバッテリカバーの前面図である。図2Eに示すように、バッテリカバー110にはガイド爪110aが設けられている。
なお、シール部材110c及びこれが嵌め込まれる溝部71の全体形状については、図6、図7A、7Bを用いて後述する。
フック弁VHは、主幹部THの先端側の一側面から断面略三角形状に突出して形成されている。より詳細には、フック弁VHの断面はフックヘッドHHの一側面を底辺として略三角形状に突出して形成されている。
つまり、フック弁VHは、先端において細く、根元(フック弁VHと主幹部THとの境界面)において太く形成されている。また、フック弁VHは図3A、3Bに示すように、筐体外部に向かって突出するように形成されていることが好ましい。しかし、反対に筐体内部に向かって突出するように形成されていてもよい。
フック弁VHと主幹部THとのなす角(フック角)θは、90°以下であることが好ましい。また、フック弁VHの先端角(上記フックヘッドHHの一側面を底辺とした三角形の他の2辺がなす角であって、フック弁角と呼ぶ。)αは、鋭角であることが好ましい。ここで、フック弁VHの先端は丸みを帯びた形状であってもよい。そのような場合のフック弁角も、上記フックヘッドHHの一側面を底辺とした三角形の他の2辺の延長線がなす角であり、やはり鋭角であることが好ましい。上記略三角形状とはこのように先端が丸みを帯びた形状をも包含する。
以上のことから、内蔵物の収容スペース即ち内蔵物の機能を犠牲にすることなく、防水構造のみを小さくすることができる。従って、携帯機器を小型薄型化できる。
次に本発明の第2の実施の形態について図10A、10Bを参照して説明する。
図10Aは、第2の実施の形態に係るバッテリカバー110の全体斜視図である。図10Bは、図10AのXb-Xb断面図である。図10Aに示すように、第2の実施の形態に係るバッテリカバー110では、嵌合力を上げるため4つのストッパー110dが設けられている。具体的には、略矩形状を有するシール部材110cの各辺の中央付近に、ストッパー110dが設けられている。図10Bに示すように、各ストッパー110dは、シール部材110cのフック弁VHの内側面、主幹部THの外側面、及び、フックベースの外側の上面に接するように設けられている。その他の構成は、第1の実施の形態と同様であるため、説明を省略する。
次に本発明の第2の実施の形態について図11を参照して説明する。図11は、第3の実施の形態に係るシール部材110cの断面図である。実施の形態1に係るシール部材110cでは、フックベースBH、主幹部TH、フック弁VHが同一材料から一体に形成されていた。これに対し、図11に示すように、フックベースBHと、フックリブRHとが同一材料から構成され、フックヘッドHHと、フック弁VHとがこれと異なる同一材料から構成されている。その他の構成は、第1の実施の形態と同様であるため、説明を省略する。
次に本発明のその他の実施の形態について図12A~12Cを参照して説明する。図12Aは、第1の実施の形態に係る第2の筐体2の構成を示す模式的分解斜視図である。図12Bは、その他の実施の形態に係る第2の筐体2の構成を示す模式的分解斜視図である。図12Bでは、リアカバー108が、筐体102全体に亘り、形成されている。そして、バッテリカバー110が、リアカバー108の下に配置されている。また、図12Cは、その他の実施の形態に係る第2の筐体2の構成を示す模式的分解斜視図である。図12Cでは、リアカバー108が設けられていない。即ち、バッテリカバー110が、フロントカバー107の下に配置されている。図12B、12Cのような構成であっても、上記実施の形態に係る防水構造を適用することができる。
第1の筐体構成部材と、
前記第1の筐体構成部材と嵌合され、筐体を構成する第2の筐体構成部材と、
前記第1の筐体構成部材に形成された環状の溝部と、
前記第2の筐体構成部材に設けられ、前記溝部に挿入される環状のシール部材と、を備え、
前記シール部材の断面は、
ベース部と、
前記ベース部から略垂直に形成された主幹部と、
前記主幹部の先端側の一側面から三角形状に突出して形成された弁部と、を備え、
非嵌合状態において、前記弁部の先端角αが鋭角であり、かつ、前記弁部と前記主幹部とのなす角θが90°以下であり、
嵌合状態において、前記ベース部と前記溝部とから構成される密閉空間内に、前記主幹部及び前記弁部が収納される防水構造。
(付記2)
嵌合状態において、
前記溝部の前記筐体の内部側の側面と、前記主幹部の前記筐体の内部側の側面とが密着し、
前記溝部の前記筐体の外部側の側面と、前記弁部の前記筐体の外部側の側面とが密着していることを特徴とする付記1に記載の防水構造。
(付記3)
非嵌合状態において、前記弁部の先端角αが鋭角であり、かつ、前記弁部と前記主幹部とのなす角θが90°以下であることを特徴とする請求項1又は2に記載の防水構造。
(付記4)
前記弁部は、前記筐体の外部側に突出して形成されていることを特徴とする付記1~3のいずれか一項に記載の防水構造。
(付記5)
少なくとも前記弁部と前記主幹部の先端部とが同一種類の弾性体から一体に形成されている特徴とする付記1~3のいずれか一項に記載の防水構造。
(付記6)
前記シール部材の全体が同一種類の弾性体から一体に形成されている特徴とする付記5に記載の防水構造。
(付記7)
前記弾性体がエストラマーであることを特徴とする付記5又は6に記載の防水構造。
(付記8)
前記弾性体のデュロA硬度が20~95であることを特徴とする付記5~7のいずれか一項に記載の防水構造。
(付記9)
前記角αが30°~45°であることを特徴とする付記1~8のいずれか一項に記載の防水構造。
(付記10)
前記角θが75°~90°であることを特徴とする付記1~9のいずれか一項に記載の防水構造。
(付記11)
前記シール部材は、2色成形により前記第2の筐体構成部材と一体に形成されていることを特徴とする付記1~10のいずれか一項に記載の防水構造。
(付記12)
前記シール部材は、
少なくとも1つ、前記ベース部と前記主幹部と前記弁部とに接して設けられたストッパーを更に備えることを特徴とする付記1~11のいずれか一項に記載の防水構造。
(付記13)
付記1~12のいずれか一項に記載の防水構造を備える電子機器。
(付記14)
携帯電子機器であることを特徴とする付記13に記載の電子機器。
(付記15)
携帯電話機であることを特徴とする付記14に記載の電子機器。
(付記16)
第1の筐体構成部材に環状の溝部を形成する工程と、
前記第1の筐体構成部材と嵌合される第2の筐体構成部材に、前記溝部に挿入される環状のシール部材を設ける工程と、
前記溝部に前記シール部材を挿入して前記第1及び第2の筐体を嵌合する工程と、を備え、
前記シール部材の断面は、
ベース部と、
前記ベース部から略垂直に形成された主幹部と、
前記主幹部の先端側の一側面から三角形状に突出して形成された弁部と、を備え、
嵌合状態において、前記ベース部と前記溝部とから構成される密閉空間内に、前記主幹部及び前記弁部が収納される防水方法。
2 第2の筐体
3 ヒンジ部
4 メイン表示部
5 操作キー
6 サブ表示部
7 フロントカバー
8 リアカバー
9 カメラ
10 バッテリカバー
10a ガイド爪
10b 中間プレート
10c シール部材
10d 外装カバー
71 溝部
72 バッテリ収納スペース
73 メイン基板収納スペース
74 溝部
75 中央リブ
76 開口部
77 開口部
78 溝部
79a、79b ネジ穴
101 第1の筐体
101a フロントパネル
101b フロントカバー
101c リアカバー
102 第2の筐体
103 ヒンジ部
104 メイン表示部
105 操作キー
106 サブ表示部
107 フロントカバー
108 リアカバー
108b 外装カバー
108c シール部材
109 カメラ
110 バッテリカバー
110a ガイド爪
110b 外装カバー
110c シール部材
110d ストッパー
111 バッテリ
112 フレキシブル基板
113 I/Oカバー
113b 外装カバー
113c シール部材
114 キーシート
BH フックベース
HH フックヘッド
RH フックリブ
VH フック弁
Claims (10)
- 第1の筐体構成部材と、
前記第1の筐体構成部材と嵌合され、筐体を構成する第2の筐体構成部材と、
前記第1の筐体構成部材に形成された環状の溝部と、
前記第2の筐体構成部材に設けられ、前記溝部に挿入される環状のシール部材と、を備え、
前記シール部材の断面は、
ベース部と、
前記ベース部から略垂直に形成された主幹部と、
前記主幹部の先端側の一側面から略三角形状に突出して形成された弁部と、を備え、
嵌合状態において、前記ベース部と前記溝部とから構成される密閉空間内に、前記主幹部及び前記弁部が収納される防水構造。 - 嵌合状態において、
前記溝部の前記筐体内部側の側面と、前記主幹部の前記筐体内部側の側面とが密着し、
前記溝部の前記筐体外部側の側面と、前記弁部の前記筐体外部側の側面とが密着していることを特徴とする請求項1に記載の防水構造。 - 非嵌合状態において、前記弁部の先端角αが鋭角であり、かつ、前記弁部と前記主幹部とのなす角θが90°以下であることを特徴とする請求項1又は2に記載の防水構造。
- 前記弁部は、前記筐体の外部側に突出して形成されていることを特徴とする請求項1~3のいずれか一項に記載の防水構造。
- 少なくとも前記弁部と前記主幹部の先端部とが同一種類の弾性体から一体に形成されている特徴とする請求項1~4のいずれか一項に記載の防水構造。
- 前記シール部材の全体が同一種類の弾性体から一体に形成されている特徴とする請求項5に記載の防水構造。
- 前記弾性体がエストラマーであることを特徴とする請求項5又は6に記載の防水構造。
- 前記弾性体のデュロA硬度が20~95であることを特徴とする請求項5~7のいずれか一項に記載の防水構造。
- 請求項1~8のいずれか一項に記載の防水構造を備える電子機器。
- 第1の筐体構成部材に環状の溝部を形成する工程と、
前記第1の筐体構成部材と嵌合される第2の筐体構成部材に、前記溝部に挿入される環状のシール部材を設ける工程と、
前記溝部に前記シール部材を挿入して前記第1及び第2の筐体を嵌合する工程と、を備え、
前記シール部材の断面は、
ベース部と、
前記ベース部から略垂直に形成された主幹部と、
前記主幹部の先端側の一側面から三角形状に突出して形成された弁部と、を備え、
嵌合状態において、前記ベース部と前記溝部とから構成される密閉空間内に、前記主幹部及び前記弁部が収納される防水方法。
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2011
- 2011-02-02 EP EP11755807A patent/EP2549153A1/en not_active Withdrawn
- 2011-02-02 US US13/578,036 patent/US20120322516A1/en not_active Abandoned
- 2011-02-02 CN CN201180014363.5A patent/CN102822575B/zh not_active Expired - Fee Related
- 2011-02-02 WO PCT/JP2011/000558 patent/WO2011114614A1/ja active Application Filing
- 2011-02-02 JP JP2012505466A patent/JP5805072B2/ja not_active Expired - Fee Related
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013084992A1 (ja) * | 2011-12-08 | 2013-06-13 | Necカシオモバイルコミュニケーションズ株式会社 | 防水構造、防水方法、及び、これらを用いた電子機器 |
EP2642728A1 (en) * | 2012-03-21 | 2013-09-25 | Samsung Electronics Co., Ltd | Apparatus for waterproofing battery cover in a portable terminal |
KR20130106981A (ko) * | 2012-03-21 | 2013-10-01 | 삼성전자주식회사 | 휴대 단말기의 배터리 커버 방수 장치 |
US9786876B2 (en) | 2012-03-21 | 2017-10-10 | Samsung Electronics Co., Ltd. | Apparatus for waterproofing battery cover in a portable terminal |
KR101892030B1 (ko) * | 2012-03-21 | 2018-08-29 | 삼성전자주식회사 | 휴대 단말기의 배터리 커버 방수 장치 |
WO2018151063A1 (ja) * | 2017-02-17 | 2018-08-23 | 日信工業株式会社 | 車両用ブレーキ液圧制御装置 |
JPWO2018151063A1 (ja) * | 2017-02-17 | 2019-11-07 | 日信工業株式会社 | 車両用ブレーキ液圧制御装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2011114614A1 (ja) | 2013-06-27 |
CN102822575A (zh) | 2012-12-12 |
JP5805072B2 (ja) | 2015-11-04 |
EP2549153A1 (en) | 2013-01-23 |
US20120322516A1 (en) | 2012-12-20 |
CN102822575B (zh) | 2015-08-19 |
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