JP5099642B2 - Waterproof structure and terminal device - Google Patents

Description

  The present invention relates to a waterproof structure of a cable lead-out portion that penetrates from the inside of a housing to the outside, and a terminal device that includes the waterproof structure.

In a foldable terminal device having a waterproof structure, a hole is provided in a waterproof packing between a water-immersable hinge and a housing, and a cable is passed through the hole (see, for example, Patent Document 1). Such a method for manufacturing a packing having a hole through which a cable passes is formed by integrally molding the cable and the packing, or manufacturing a packing having a hole, and then passing the cable through the hole.
JP 2004-47968 A

By the way, the foldable mobile terminal has the advantage that it can be miniaturized by folding it when not in use, but it has a hinge part, so there is a problem that it becomes large in size and complicated in structure to cope with waterproofing. is there.
As a countermeasure, as in Patent Document 1, a waterproof packing between the water-immersable hinge portion and the housing is provided with a hole, and the cable is passed through the hole so that the waterproof is achieved by the packing.

  However, as a method of manufacturing a packing having a hole through which a cable passes, for example, when a method in which the cable and the packing are integrally formed is used, it is difficult to align the cables at equal intervals. When the method of passing the cable through the hole is taken later, the hole is made narrower than the diameter of the cable for waterproofing, so that there is a problem that the process of passing the hole through the cable is difficult.

  An object of the present invention is to reduce the size of a waterproof structure while improving the efficiency of the work of setting a cable in a packing.

  In order to solve the above problems, the invention according to claim 1 is a waterproof structure of a cable lead-out portion that penetrates from the inside of the housing to the outside, and is formed through the housing, and includes a plurality of cables. An insertion hole for insertion, a fixing portion that fixes the plurality of cables at equal intervals, and a packing that is molded so as to cover the fixing portion and is press-fitted into the insertion hole. .

  Invention of Claim 2 is the waterproof structure of Claim 1, Comprising: The said fixing | fixed part becomes the arrangement | positioning by which the position which fixes the said cable is replaced alternately one by one.

  A third aspect of the present invention is the waterproof structure according to the first aspect, wherein the fixing portion is composed of two metal fittings that form a pair to be fitted to each other.

  The invention according to claim 4 is the waterproof structure according to claim 1, wherein the insertion hole has a narrow inside of the housing.

  The invention according to claim 5 is a terminal device in which the first housing and the second housing are connected to each other via a hinge portion so as to be foldable, between the first housing and the hinge portion. The cable lead-out portion and the cable lead-out portion between the second housing and the hinge portion are provided with the waterproof structure according to any one of claims 1 to 4.

  Invention of Claim 6 is a terminal device of Claim 5, Comprising: Said 1st housing | casing and said 2nd housing | casing consist of two cases which make the pair united, respectively, An annular packing disposed for waterproofing between the peripheral portions of two cases forming a pair and the packing according to claim 1 are integrated.

  According to the present invention, it is possible to improve the efficiency of the work of setting the cable in the packing and to reduce the size of the waterproof structure.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
FIG. 1 shows a state in which a foldable mobile phone is opened as a configuration of an embodiment of a terminal device to which the present invention is applied, and FIG. 2 shows cable wiring inside the housing, etc. 1 is a first housing, 2 is a second housing, 3 is a hinge, 4 is a cable, and 5 is a packing.

  As shown in the figure, the first housing 1 and the second housing 2 are foldably coupled (openable and closable) via a hinge portion 3, and a key input unit (not shown) is provided on the first housing 1. In addition, a display unit (not shown) is provided in the second housing 2. The first housing 1 is combined with a lower case 11 and an upper case 12 which are paired together by waterproofing via an annular packing (not shown), and the second case 2 is also paired with a lower case 21 and an upper case. 22 is waterproofed and combined through an annular packing (not shown). In FIG. 2, 13 is a packing groove provided in the lower case 11 of the first casing 1, and 23 is a packing groove provided in the lower case 21 of the second casing 2.

  In the illustrated example, the hinge portion 3 includes a biaxial hinge unit 30. That is, the biaxial hinge unit 30 is arranged such that the first housing 1 and the second housing 2 are foldably coupled, and the hinge shaft 31 and the axis are orthogonal to each other. A rotation support shaft 32 that rotatably couples the second housing 2 to the body 1 is provided. The hinge shaft 31 is fixed to the lower case 11 of the first housing 1 by a bracket 33 on the outside of the packing groove 13, and the rotation support shaft 32 is integrated with the bracket 33, and the second bracket 34 is used for the second. A packing groove 23 is fixed to the lower case 21 of the casing 2 of the casing 2.

  The cable 4 is disposed through the inside of the biaxial hinge unit 30 between the inside of the first housing 1 and the inside of the second housing 2. That is, as shown in the figure, ten cables 4 pass through the horizontally long insertion hole 14 formed through the lower case 11 of the first casing 1 and the lower case 21 of the second casing 2. Are inserted through the hollow portion of the rotary support shaft 32 of the biaxial hinge unit 30 and the one end portion of the bracket 33. Note that a connector 41 is provided at one end of the lower casing 11 of the first casing 1 of the cable 4, and a connector 42 is provided at the other end of the lower casing 21 of the second casing 2 of the cable 4. Is provided.

  Ten cables 4 are drawn out through the packing 5 in the insertion hole 14 of the lower case 11 of the first casing 1 and the insertion hole 24 of the lower case 21 of the second casing 2. .

  FIG. 3 is an enlarged view of the first housing 1 shown in FIG. 1 with the cable 4 being pulled out and enlarged. FIG. 4 is a further enlarged view of the cable 4 and 6 is a fixed portion. An insert fitting 7 is an annular packing. That is, in the packing 5, an insert fitting 6 that is a fixing portion of the ten cables 4 is insert-molded. An annular packing 7 is set in the packing groove 13.

  As shown in FIGS. 3 and 4, the insertion hole 14 has a narrow vertical distance inside the first housing 1.

  As shown in FIG. 5, the packing 5 has two seal lips 51 formed on the outer periphery.

  As shown in FIG. 6, the insert metal fitting 6 is integrally provided with a cable holding portion 61 for holding ten cables 4 by caulking one by one at equal intervals on a horizontally elongated plate-like portion. The cable holding portions 61 are alternately replaced in the front-rear direction.

  Thus, the packing 5 is shape | molded by setting the insert metal fitting 6 which hold | maintained and arranged the 10 cables 4 in the cable holding part 61 to the molding die which is not shown in figure, and injecting and filling rubber | gum.

  The packing 5 of the above ten cables 4 is press-fitted from the outside into the insertion hole 14 of the lower case 11 of the first housing 1.

  Similarly, the insertion hole 24 of the lower case 21 of the second casing 2 has a narrower vertical distance inside the second casing 2, and similarly, ten insertion cables 24 are inserted into the insertion hole 24. Four packings 5 are press-fitted.

  As described above, according to the mobile phone of the embodiment, the insertion holes 14 and 24 through which the ten cables 4 penetrating the first casing 1 and the second casing 2 are inserted and the ten cables 4 are equally spaced. The cable 4 is set in the packing one by one by adopting a waterproof structure comprising the insert metal fitting 6 to be fixed to the insert and the packing 5 in which the insert metal fitting 6 is insert-molded and press-fitted into the insertion holes 14 and 24. Therefore, the efficiency of the work of setting the cable in the packing is improved, and the waterproof structure can be reduced in size.

  Then, the cable holding portions 61 of the insert metal fitting 6 are used to alternately replace the positions where the cables 4 are fixed one by one, so that the distance between the cables 4 can be reduced, and therefore the size can be further reduced.

  Further, since the vertical intervals inside the housings 1 and 2 are narrow in the insertion holes 14 and 24, when the packing 5 is press-fitted from the outside of the housings 1 and 2, the packings are inserted in the insertion holes 14 and 24, respectively. 5 can be easily stopped.

  In addition, a waterproof structure in which the cable 4 is pulled out through the packing 5 between the first casing 1 and the hinge part 3 and between the second casing 2 and the hinge part 3 is provided. It is possible to manufacture a mobile phone with little structural difference from the mobile phone.

(Embodiment 2)
FIG. 7 shows Embodiment 2 as an internal structure of the packing 5 part of FIG. 5, 8 is an insert fitting as a fixing part, and FIG. 8 is an exploded view of the insert fitting 8.

  That is, in the second embodiment, the insert metal fitting 8 forms a cable holding groove 81 for inserting and holding ten cables 4 one by one at equal intervals in front and rear pieces of a horizontally elongated plate-like portion as shown in the figure. Then, a locking piece 82 that is curved and deformed at the left and right ends of the horizontally elongated plate-like portion is integrally provided. A pair of upper and lower insert fittings 8 are prepared.

  As shown in FIG. 8, ten cables 4 are respectively held and arranged in the cable holding grooves 81 of the lower insert fitting 8, and then the cables 4 are respectively inserted into the cable holding grooves 81 of the other insert fitting 8 from the upper side. At the same time, the engaging pieces 82 at both ends are fitted to each other by utilizing the spring property of the curved deformation, and the insert fittings 8 that make a pair are fitted while pressing the cable 4 between the upper and lower cable holding grooves 81. .

  The above-mentioned pair of upper and lower insert fittings 8 is set in a molding die (not shown), and rubber is injected and filled to mold the packing 5.

  The packings 5 of the above ten cables 4 are press-fitted from the outside into the insertion holes 14 and 24 of the lower cases 11 and 21 of the first casing 1 and the second casing 2, respectively.

  As described above, according to the waterproof structure of the second embodiment, the ten cables 4 are held by the cable holding grooves 81 of the two insert fittings 8 that are fitted from above and below. As compared with the case of the insert fitting 6 that requires caulking, assembly is facilitated.

  And since the packing 5 with uniform rubber thickness is formed around the fixed part which consists of the two insert metal fittings 8 fitted from the upper and lower sides, the compression rate when the packing 5 is press-fitted into the insertion holes 14 and 24 is reduced. It is easy to stabilize and a stable waterproof structure is obtained.

(Embodiment 3)
FIG. 9 shows Embodiment 3 as the inside of the housing 2 and the packing 5 and connector 42 of the cable 4, 9 is an annular packing, and FIG. 10 is an enlarged view of the packing 5 and connector 42 of the cable 4. It is shown.

  That is, in the third embodiment, as shown in the figure, an annular packing 9 set in a packing groove 23 of the lower case 21 of the second housing 2 is integrally molded with the packing 5 of ten cables 4. is there.

  Since the annular packing 9 is formed separately above and below the packing 5 of the cable 4 as shown in the figure, the insertion hole 24 into which the packing 5 of the cable 4 is press-fitted is formed in the lower case 21 and the upper case 22. A mating surface is formed including a packing groove 23.

  As described above, according to the mobile phone of the third embodiment, the annular packing 9 disposed on the peripheral edge for waterproofing between the lower case 21 and the upper case 22, and the packing 5 in the drawer portion of the ten cables 4, As a result of the integration, the confidentiality is high, and the assembly and space efficiency are excellent.

  Here, the annular packing 7 set in the packing groove 13 of the lower case 11 of the first housing 1 may be integrally formed with the packing 5 of the ten cables 4.

(Modification)
In the above embodiment, the cellular phone is used. However, the present invention is not limited to this, and is used for all cameras, PDAs, notebook computers, wearable computers, calculators, electronic dictionaries, and other terminal devices. Can do.
Moreover, although it was set as the biaxial hinge in embodiment, the uniaxial hinge only of folding may be sufficient.
Further, the packing may be obtained by insert molding in a state where the cable is inserted through the hollow shaft or the like of the hinge part.
Further, the number of cables, the shape of the packing and the fixing portion, and the like are arbitrary, and it is needless to say that specific detailed structures and the like can be appropriately changed.

BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view which showed the structure of one Embodiment of the terminal device to which this invention was applied, and showed the state which opened the foldable mobile telephone. It is the figure which showed cable wiring inside the housing | casing of FIG. It is the enlarged view fractured | ruptured by the cable drawer part of the 1st housing | casing of FIG. It is the figure which expanded and showed the cable drawer part of FIG. It is an enlarged view of the packing part and connector part of the cable of FIG. It is the figure which expanded and showed the internal structure of the packing part of FIG. FIG. 6 is a perspective view showing an internal structure of the packing part of FIG. It is the figure which decomposed | disassembled and showed the metal fitting of FIG. FIG. 9 is an exploded perspective view showing the third embodiment, showing the inside of the housing, the packing portion of the cable, and the connector portion. It is an enlarged view of the packing part and connector part of the cable of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st housing | casing 11 Lower case 12 Upper case 13 Packing groove 14 Insertion hole 2 Second housing 21 Lower case 22 Upper case 23 Packing groove 24 Insertion hole 3 Hinge part 30 Biaxial hinge unit 31 Hinge shaft 32 Rotation support Shafts 33 and 34 Bracket 4 Cable 41 and 42 Connector 5 Packing 51 Seal lip 6 Insert metal fitting 61 Cable holding part 7 Annular packing 8 Insert metal fitting 81 Cable holding groove 82 Locking piece 9 Annular packing

Claims (6)

The waterproof structure of the cable lead-out part that penetrates from the inside of the housing to the outside,
An insertion hole formed through the housing and for inserting a plurality of cables;
A fixing portion for fixing the plurality of cables at equal intervals;
A waterproof structure comprising: a packing molded to cover the fixing portion and press-fitted into the insertion hole.   The waterproof structure according to claim 1, wherein the fixing portion is arranged so that positions for fixing the cables are alternately switched one by one.   The waterproof structure according to claim 1, wherein the fixing portion includes two metal fittings that form a pair to be fitted to each other.   The waterproof structure according to claim 1, wherein the insertion hole has a narrow inside of the housing. A terminal device in which the first housing and the second housing are foldably connected via a hinge part,
5. The cable lead-out portion between the first housing and the hinge portion, and the cable lead-out portion between the second housing and the hinge portion, according to claim 1. A terminal device comprising a waterproof structure. The first casing and the second casing are each composed of two cases forming a pair to be combined,
The terminal device according to claim 5, wherein an annular packing disposed for waterproofing between peripheral portions of the two cases forming the pair and the packing according to claim 1 are integrated.

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