JP3741948B2 - Folding housing structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foldable casing structure, and more particularly, to a foldable casing structure in which measures against flooding are provided for the inside of the casing.
[0002]
[Prior art]
With the recent trend toward miniaturization, mobile phones can be folded into an upper housing equipped with a liquid crystal panel that displays various information including telephone numbers and a lower housing equipped with dial buttons. In many cases, a simple housing structure is provided. An apparatus substrate for performing various operation controls in the mobile phone is provided inside the casing. In addition, such a folded housing structure is often used for electronic devices such as notebook personal computers other than mobile phones.
[0003]
In such a folded housing structure, the upper housing and the lower housing are provided with hinge portions, the hinge portions provided in each housing are in contact with each other, and the hole formed in each hinge portion is pivoted. In general, the upper housing and the lower housing can be folded around an axis.
[0004]
[Problems to be solved by the invention]
However, in the folded housing structure as described above, depending on the structure, the inside of the housing may be submerged from a slight gap or the like formed on the joint surface of the hinge portion. And a water droplet may adhere to the apparatus board | substrate with which the inside of a housing | casing is equipped, and an apparatus board | substrate may be destroyed electrically. Therefore, there is a concern that the function of the apparatus is destroyed.
[0005]
Then, an object of this invention is to provide the folding housing | casing structure provided with the infiltration prevention structure.
[0006]
[Means for Solving the Problems]
In the folding structure according to the present invention, the first hinge part (2a, 2b) and the second hinge (5a, 5b) part are the central part of the second hinge part (5b) and the first hinge part (2b). Are formed at the center of the hinge unit (19), the second hinge part (5a), and the first hinge part (2a) that are in contact with the first cylindrical space through the hole formed in The first casing (1, 7) and the second casing (4, 11) by rotating around the hinge unit (19) that passes through the hole and touches the second cylindrical space. Is a folding housing structure capable of folding the first upper hinge member (3) and the first lower hinge member (8) in the first cylindrical space formed by joining. Formed by joining the upper hinge member (6) of the second and the second lower hinge member (12) The first standing wall (10) is provided on the side surface opposite to the second cylindrical space, and the first cylindrical wall in the second cylindrical space on the side surface opposite to the first cylindrical space. Two standing walls (14) are provided.
[0007]
A fitting standing wall (9) is provided along the joint between the first upper hinge member (3) and the first lower hinge member (8), and the second upper hinge member (6) and the second A fitting standing wall (13) is provided along the joint of the lower hinge member (12). By providing the fitting standing wall (9) and the fitting standing wall (13), a gap formed by the coupling between the first upper hinge member (3) and the first lower hinge member (8), It is possible to prevent water from entering from a gap formed by the connection between the second upper hinge member (6) and the second lower hinge member (12).
[0008]
A first waterproofing member (17) for preventing water from entering the first housing (1, 7) is provided in the first lower hinge member (8) in the first housing (1, 7). A second waterproofing member (18) provided in the vicinity of the skirt and preventing water from entering the second casing (4, 11) is provided in the second casing (4, 11). It is provided in the vicinity of the bottom of the lower hinge member (12). The first waterproofing member (17) and the second waterproofing member (18) are, for example, a water absorbing sheet or a waterproof packing. By providing the first waterproofing member (17) and the second waterproofing member (18), it is possible to prevent water from entering the housing.
[0009]
On the hinge member side of the waterproof member in at least one of the first casing (1, 7) and the second casing (4, 11), ribs (16) whose both ends and bottom face are in contact with the casing. ) Is provided. By providing the rib (16), even if water enters through the wall surface of the casing, the water flow path is bent into a rectangular shape by the rib (16), thereby preventing water from entering the casing. be able to.
[0010]
The printed wiring board (20, 21) is accommodated in each of the first casing (1, 7) and the second casing (4, 11), and each printed wiring board (20, 21) is disposed in the cylindrical space. A flexible substrate (22) to be connected to is accommodated. The portion of the flexible substrate (22) that extends from the first casing (1, 7) is guided to the first cylindrical space and extends to the second cylindrical space, and the second cylindrical space. The portion extended from the second lead is led into the second casing (4, 11). As shown above, the first casing (1, 7) and the second casing (4, 11) are provided with waterproofing members (17) and (18), respectively. Even if water adheres to the flexible substrate (22), the waterproof member (17) or (18) can prevent water droplets from flowing out from the flexible substrate (22) to the printed wiring boards (20) and (21). .
[0011]
When the first housing and the second housing are combined, the two hinge portions (2a, 2b) in the upper front case (1) are respectively connected to the hinge portions (5a, 5b) in the lower front case (4). located between) the two hinge portions at the upper portion front case (1) (2a, 2b) one of which is formed integrally with the first upper hinge members (3) of the second lower hinge members ( A third standing wall (15) is provided at the base of the first cylindrical space side of 12) so as to face the second standing wall (14). By providing the standing wall (15), it is possible to prevent water from entering through the gap between the first lower hinge member (8) and the second lower hinge member (12).
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a folding housing structure according to the present invention. FIG. 2 is a partially enlarged view of a folding housing structure according to the present invention. FIG. 1 shows an example in which a folding housing structure according to the present invention is used in a mobile phone.
[0013]
In the upper front case 1 (first housing), a transparent portion corresponding to the liquid crystal panel, a sound hole corresponding to the speaker for outputting the received voice, and the like are formed. Inner hinge portions (first hinge portions) 2 a and 2 b and a half hinge portion (first upper hinge member) 3 are formed at one end of the upper front case 1. The half hinge part 3 is integrated with the inner hinge part 2b. The lower front case (second housing) 4 is formed with a hole corresponding to a dial operation portion or the like, a sound hole corresponding to a microphone for calling, and the like. Outer hinge portions (second hinge portions) 5 a and 5 b and half hinge portions (second upper hinge members) 6 are formed at one end of the lower front case 4. A cylindrical hole is formed at the center of the outer hinge portions 5a and 5b and the inner hinge portions 2a and 2b. The hinge unit 19 is used to couple the upper front case 1 and the lower front case 4 together.
[0014]
The printed wiring board 20 and the printed wiring board 21 are connected through the flexible board 22. A circuit for driving a liquid crystal panel for displaying a telephone number or the like is mounted on the printed wiring board 20. The printed wiring board 21 is mounted with a circuit for receiving an instruction from the dial operation unit. The flexible substrate 22 is provided with a waterproof measure, and is bent into a cylindrical shape to connect the printed wiring board 20 and the printed wiring board 21.
[0015]
A half hinge portion (first lower hinge member) 8 is formed at one end of the upper rear case (first housing) 7. A fitting standing wall 9 used for fitting with the half hinge part 3 in the upper front case 1 is formed at the tip of the half hinge part 8. A peripheral standing wall (first standing wall) 10 for preventing water immersion is formed on the side surface of the half hinge portion 8 that contacts the inner hinge portion 2b.
[0016]
A half hinge portion (second lower hinge member) 12 is formed at one end of the lower rear case (second housing) 11. A fitting standing wall 13 that is used for fitting with the half hinge portion 6 in the lower front case 4 is formed at the tip portion of the half hinge portion 12. A circumferential standing wall (second standing wall) 14 is formed on the side surface of the half hinge portion 12 that contacts the inner hinge portion 2a, and a standing wall (third standing wall) 15 is formed on the other side surface. Is formed. One end of the circumferential standing wall 14 has a circumferential shape.
[0017]
Of the ends of the circumferential standing wall 14 and the standing wall 15, a rib 16 used for preventing water intrusion comes into contact with one end belonging to a position farthest from the fitting standing wall 13. The width of the rib 16 is the same as the inner width of the lower rear case 11, and the height of the rib 16 is the same as the height of the flexible substrate 22 from the lower rear case 11. The rib 16 has both side surfaces in contact with the inner wall of the lower rear case 11 and its bottom surface in contact with the bottom surface of the lower rear case 11.
[0018]
The water absorbent sheet (first waterproof member) 17 is installed inside the upper rear case 7, and the water absorbent sheet (second waterproof member) 18 is installed inside the lower rear case 11. The water absorbing sheets 17 and 18 are made of felt fibers, for example.
[0019]
Next, a method for assembling the folding housing structure shown in FIG. 1 will be described. FIG. 3 is a cross-sectional view showing a cross section when the joint portion of the housing is cut at the position AA ′. FIG. 4 is a cross-sectional view showing a cross section when the joint portion of the housing is cut at the position BB ′. FIG. 5 is a cross-sectional view showing a cross section when the joint portion is folded at the position CC ′ when the housing is folded.
[0020]
The side surface of the inner hinge portion 2a is in contact with the side surfaces of the outer hinge portion 5a and the half hinge portion 6, the side surface of the half hinge portion 3 is in contact with the side surface of the half hinge portion 6, and the side surface of the inner hinge portion 2b is the outer hinge portion 5b. The upper front case 1 and the lower front case 4 are aligned with each other so as to come into contact with the side surface. Then, the hinge unit 19 serving as a shaft is passed through a hole formed at the center of the outer hinge portion 5a and the inner hinge portion 2a. Similarly, the holes are formed through the holes formed in the central portions of the outer hinge portion 5b and the inner hinge portion 2b. As a result, the upper front case 1 and the lower front case 4 are coupled.
[0021]
The printed wiring board 20 is attached inside the upper front case 1. Similarly, the printed wiring board 21 is attached to the inside of the lower front case 4. At this time, the printed wiring boards 20 and 21 are attached so that the flexible board 22 bent into a cylindrical shape is enclosed in a semicircular space formed by joining the half hinge part 3 and the half hinge part 6.
[0022]
The water absorbing sheet 17 is stuck inside the upper rear case 7. For example, it sticks on the place located in the vicinity of the skirt part of the half hinge part 8. FIG. Similarly, the water absorbing sheet 18 is stuck inside the lower rear case 11. For example, it sticks on the position which touches the rib 16.
[0023]
The upper front case 1 and the upper rear case 7 are fitted together by fitting the fitting standing wall 9 and the inside of the half hinge part 3 together. Similarly, the lower front case 4 and the lower rear case 11 are fitted by fitting the fitting standing wall 13 and the inside of the half hinge part 6 together. As a result, the upper front case 1 and the upper rear case 7 are integrated, and the lower front case 4 and the lower rear case 11 are integrated. The integrated upper housing (upper front case 1 and upper rear case 7) and lower housing (lower front case 4 and lower rear case 11) can be folded around the hinge unit 19 as an axis.
[0024]
As described above, according to the present embodiment, the peripheral standing wall 10, the circumferential standing wall 14, and the standing wall 15 are provided, so that the gap between the half hinge portion 12 and the inner hinge portion 2a, the half hinge portion 12 and It is possible to prevent water from entering the housing from the gap between the half hinge part 8 and the gap between the half hinge part 8 and the inner hinge part 2b.
[0025]
Further, by providing the lower rear case 11 with the ribs 16, the gap between the inner hinge part 2 a and the lower front case 4 and the gap between the part where the half hinge part 3 and the half hinge part 8 are joined and the lower front case 4 are eliminated. Even if water flows in along the wall surface of the housing, the inflow path is bent into a rectangular shape by the circumferential standing wall 14, the standing wall 15 and the rib 16, so that water can be prevented from entering the housing. .
[0026]
Further, the water absorbing sheet 17 is installed in the vicinity of the hem of the half hinge portion 8 in the upper rear case 7 and the water absorbing sheet 18 is installed in the vicinity of the rib 16 in the lower rear case 11 so that the half hinge portion 3 and the half hinge are disposed. Even if the flexible substrate 22 gets wet due to water immersion from the gap of the portion 6 or the like, each water-absorbing sheet absorbs water droplets flowing out from the flexible substrate 22, thereby preventing water from entering the housing. That is, it is possible to prevent the printed wiring boards 20 and 21 from being electrically destroyed by water immersion.
[0027]
In the above-described embodiment, the case where the water absorbing sheets 17 and 18 are used as a countermeasure against water infiltration has been described as an example. Instead of the water absorbing sheets 17 and 18, a molded product such as silicon rubber or EPDM (ethylene) is used. You may use the waterproof packing which is.
[0028]
In the above-described embodiment, an example in which the folding housing structure according to the present invention is applied to a mobile phone has been described. However, it may be applied to an electronic device such as a notebook personal computer.
[0029]
【The invention's effect】
According to the present invention, the first hinge part (2a, 2b) and the second hinge (5a, 5b) part are at the center of the second hinge part (5b) and the first hinge part (2b). The hinge unit (19), the second hinge part (5a), and the first hinge part (2a) are formed at the center of the first hinge part (2a) through the formed hole part and in contact with the first cylindrical space. The first casing (1, 7) and the second casing (4, 11) are rotated by rotating around the hinge unit (19) that passes through the hole and contacts the second cylindrical space. In the folding housing structure that can be folded, the second in the first cylindrical space formed by the coupling of the first upper hinge member (3) and the first lower hinge member (8). A second formed by coupling the upper hinge member (6) and the second lower hinge member (12). A first standing wall (10) is provided on a side surface opposite to the cylindrical space, and a second side wall is provided on the side surface opposite to the first cylindrical space in the second cylindrical space. Since the standing wall (14) is provided, the gap between the first hinge part ( 2b ) and the first lower hinge member (8), the first hinge part ( 2a ) and the second lower hinge member (12) It is possible to prevent water from entering the space from the gap.
[0030]
The first waterproof member (17) is provided in the vicinity of the bottom of the first lower hinge member (8) in the first housing (1, 7), and the second waterproof member (18) is provided in the first casing (1, 7). Since it is installed in the vicinity of the bottom of the second lower hinge member (12) in the second casing (4, 11), the first casing (1, 7) and the second casing (4, 11) It is possible to prevent water from entering the inside of the.
[0031]
Further, the rib (16) whose both ends and bottom face are in contact with the housing is provided with a waterproof member in at least one of the first housing (1, 7) and the second housing (4, 11). By installing on the hinge member side, even if water enters through the wall surface of the casing, the water flow path is bent into a rectangular shape by the rib (16), so that it is possible to prevent water from entering the casing. .
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a folding housing structure according to the present invention.
FIG. 2 is a partially enlarged view of a folding housing structure according to the present invention.
FIG. 3 is a cross-sectional view showing a cross section when a joint portion of a housing is cut at a position AA ′.
FIG. 4 is a cross-sectional view showing a cross section when a joint portion of a housing is cut at a position BB ′.
FIG. 5 is a cross-sectional view showing a cross section when the joint portion is folded at the position CC ′ when the housing is folded.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper front case 2a, 2b Inner hinge part 3 Half hinge part 4 Lower front case 5a, 5b Outer hinge part 6 Half hinge part 7 Upper rear case 8 Half hinge part 9 Fitting standing wall 10 Perimeter standing wall 11 Lower rear case 12 Half hinge part 13 Fitting standing wall 14 Circumferential standing wall 15 Standing wall 16 Ribs 17, 18 Water absorbing sheet 19 Hinge unit 20, 21 Printed wiring board 22 Flexible board

Claims (7)

A first casing formed by the upper front case (1) and the upper rear case (7), and a second casing formed by the lower front case (4) and the lower rear case (11). Prepared,
A first hinge part including two hinge parts (2a, 2b) is provided in the upper front case (1), and a second hinge part including two hinge parts (5a, 5b) in the lower front case (4). Is provided,
A first upper hinge member (3) whose cross section forms a part of the circumference is provided in the upper front case (1), and is joined to the first upper hinge member to form a cylindrical first space therein. A first lower hinge member (8) whose cross section forms part of the circumference is provided in the upper rear case (7), and a second upper hinge member (section whose cross section forms part of the circumference ) 6) is provided in the lower front case (4) and is joined to the second upper hinge member to form a cylindrical second space therein, and a second section whose section forms a part of the circumference. The lower hinge member (12) is provided in the lower rear case (11) , the first cylindrical space communicates with the second cylindrical space to form a cylindrical space;
The first upper hinge member (3) and the first lower hinge member (8) and the second upper hinge member (6) and the second lower hinge member (12) are divided into the first hinge portion (2a, 2b) and the inside of the second hinge part (5a, 5b),
Hole portion in which the first hinge portion (2a, 2b) and the second hinge (5a, 5b) portion are formed at the center of the second hinge portion (5b) and the first hinge portion (2b) Through the hole formed in the central part of the hinge unit (19), the second hinge part (5a) and the first hinge part (2a) which are in contact with the first cylindrical space. The first casing (1, 7) and the second casing (4, 11) can be folded by rotating around the hinge unit (19) in contact with the second cylindrical space. In the folding housing structure,
A first standing wall (10) is provided on the side surface of the first cylindrical space opposite to the second cylindrical space, and the first standing wall in the second cylindrical space is provided. A folding housing structure characterized in that a second standing wall (14) is provided on a side surface opposite to the cylindrical space. A fitting standing wall (9) is provided along the joint between the first upper hinge member (3) and the first lower hinge member (8), and the second upper hinge member (6) and the second The folding housing structure according to claim 1, wherein a fitting standing wall (13) is provided along a joint portion of the lower hinge member (12). A first waterproofing member (17) for preventing water from entering the first housing (1, 7) is provided in the first lower hinge member (8) in the first housing (1, 7). A second waterproofing member (18) provided in the vicinity of the skirt and preventing water from entering the second casing (4, 11) is provided in the second casing (4, 11). The folding housing structure according to claim 1 or 2, wherein the folding housing structure is provided in the vicinity of a bottom portion of the lower hinge member (12). On the hinge member side of the waterproof member in at least one of the first casing (1, 7) and the second casing (4, 11), ribs (16) whose both ends and bottom face are in contact with the casing. The folding housing structure according to claim 3. A printed wiring board (20, 21) is accommodated in each of the first casing (1, 7) and the second casing (4, 11), and each printed wiring board (20, 21) is in a cylindrical space. folding chassis structure according to any one of claims 1 to 4, the flexible substrate (22) is accommodated which is connected to. A portion extending from the first casing (1, 7) in the flexible substrate (22) is guided to the first cylindrical space and extends to the second cylindrical space,
The folding housing structure according to claim 5, wherein a portion extending from the second cylindrical space is guided into the second housing (4, 11). When the first housing and the second housing are combined, the two hinge portions (2a, 2b) in the upper front case (1) are respectively connected to the hinge portions (5a, 5b) in the lower front case (4). ) Between
The first hinge portion of the upper portion front case (1) (2a, 2b) one of which is formed integrally with the first upper hinge members (3) of,
The third standing wall (15) is provided at the base of the second lower hinge member (12) on the first cylindrical space side so as to face the second standing wall (14). folding chassis structure according to any one of claims 1 to 6.

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