JP2010016121A - Arrangement structure of wiring body, mobile phone, and wiring component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an arrangement structure of a wiring body which can impart waterproofness while wiring in the housing without using a die, and to provide a mobile phone using it, and a wiring component. <P>SOLUTION: The arrangement structure of a wiring body includes a heat shrinkage tube 5, and convex wiring body insertion openings 11d and 11h provided in the housing 11. An FPC 3 is located to pass through the heat shrinkage tube 5 and the wiring body insertion opening 11h, one end side of the heat shrinkage tube is contracted and stuck to the convex part of the wiring body insertion opening, and the other end side of the heat shrinkage tube is stuck to other member or the wiring body so that waterproofness is maintained. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an arrangement structure of a wiring body, a mobile phone, and a wiring component, and more specifically, a flexible printed circuit board (FPC) is provided so as not to impair the waterproof property of a casing of the mobile phone or the like. The present invention relates to an arrangement structure of a wiring body, a mobile phone using the wiring body, and a wiring component.

A cellular phone, a notebook computer, or the like uses a structure in which a wiring body such as an FPC is bridged between two casings connected by a hinge. In recent years, there has been a trend to demand waterproofness for these electronic devices. In particular, as mobile phones are used more frequently in pools, bathrooms, etc., it is necessary for both cases to be waterproof. The For this purpose, an FPC-integrated gasket has been proposed in which a seal portion is formed on an FPC or the like while thermocompression bonding is performed by injection molding, and is fitted in an insertion port of each housing in a watertight manner (Patent Document 1). There has also been a proposal that an integral packing is provided in an insertion port portion for an FPC that electrically connects between cases and a portion between upper / lower cases constituting the case (Patent Document 2). . In the case of this structure, two halved packing storage portions are provided in the insertion port portion, and the halved packings stored in each of the two keep the watertightness by sandwiching the inserted FPC from above and below. With the above structure, waterproofness of a mobile phone or the like can be obtained.
Utility Model Registration No. 3127071 JP 2005-32752 A

  However, in order to maintain the water tightness, the seal part or the packing part described above requires precision processing using a mold. Cellular phones often change models every season, and molds change frequently. For this reason, the number of products manufactured by one mold is not large enough, and the ratio of the mold cost to the manufacturing cost tends to increase. For this reason, development of the arrangement | positioning structure of a wiring body which can acquire sufficient waterproofness is required, without using a metal mold | die. In addition, not only between two housings, but generally, when a signal is transmitted to an electronic component in one housing from the outside of the housing by a wiring body such as an FPC, it is naturally required to be waterproof. Even in the case of wiring in such a single casing, it is required to provide a wiring body arrangement structure without using a mold. SUMMARY OF THE INVENTION An object of the present invention is to provide an arrangement structure of a wiring body, a mobile phone using the same, and a wiring component that can be waterproofed while wiring into the casing without using a mold. To do.

  The arrangement structure of the wiring body of the present invention is provided to insert the wiring body into the housing while maintaining waterproofness. The wiring body arrangement structure includes a wiring body, a housing, a heat shrinkable tube, and a convex wiring body insertion port provided in the housing. The wiring body is positioned so as to pass through the heat-shrinkable tube and the wiring body insertion port, and one end side of the heat-shrinkable tube shrinks and adheres to the convex portion of the wiring body insertion port, and the other end side of the heat-shrinkable tube is The member is characterized by being contracted and adhered so as to maintain waterproofness.

  According to said structure, waterproofness is ensured by covering a housing insertion port (one end side) and any member (other end side) with a heat contraction tube, without using a metal mold | die. Can do. The convex wiring body insertion port can be realized by a simple modification of the housing manufacturing by the housing manufacturing side. In addition, the heat shrinkable tube can be selected appropriately from many sizes and diameters according to the size of the convex wiring body insertion slot and the size of any member. it can. Many specifications in terms of materials such as the temperature for heat shrinkage and heat resistance are commercially available. For this reason, a certain waterproof property can be acquired, without using the packing etc. which need a precision process especially. In addition to being excellent in economics in terms of the component cost itself, it is also economical in terms of assembly man-hours assembled in electronic parts such as mobile phones. The close contact means that it is driven by the contraction force and pressed against the mating member, and an adhesive or other material may be interposed between the mating member. As for the convex wiring body insertion port, a structure in which the wiring body insertion port provided in the housing has a convex part is common. That is, a structure in which a cylindrical portion (convex portion) or the like protrudes in common with a through hole (insertion opening) in the housing wall is common.

  The other end side of the heat shrinkable tube can be contracted and adhered to the wiring body. In this case, the wiring body insertion opening and the wiring body of one housing are brought into close contact with each other so as to cover the heat-shrinkable tube, and the waterproofness can be ensured by limiting to that portion. At that time, waterproofness can be obtained by simple parts and simple work.

  A housing different from the above housing, the other housing has a convex wiring body insertion port, the wiring body passes through the wiring body insertion port, the other end of the heat shrinkable tube A structure can be adopted in which the side contracts and adheres to the convex portion of the wiring body insertion port of another housing. Thereby, the electronic components located in the two housings can be electrically connected by the wiring body while ensuring waterproofness.

  The heat-shrinkable tube portion between one end side and the other end side of the heat-shrinkable tube can be brought into a non-contact state with respect to the wiring body. As a result, the restraint on the wiring body can be reduced, and the wiring work can be facilitated by making use of the elasticity and flexibility of the wiring body. Further, it is possible to make it difficult to cause a failure with respect to the movement of a hinge or the like connecting the two housings.

  The portion of the mating member to which the end portion of the heat shrinkable tube is in close contact with the end portion of the heat shrinkable tube can be bonded with an adhesive. As a result, the adhesion or waterproofness between the heat-shrinkable tube and the housing or wiring body can be improved more reliably. In addition, it is possible to prevent detachment between the heat-shrinkable tube and the counterpart in an unexpected situation. Here, the mating member to which the end of the heat shrinkable tube is in close contact refers to the convex portion of the insertion port of the housing and / or the wiring body.

  You may provide an uneven | corrugated | grooved part in the surface of the other member to which the edge part of said heat contraction tube contact | adheres, and / or the said contact surface of the heat contraction tube. Thereby, with a simple structure, waterproofness can be improved and the heat-shrinkable tube can be made difficult to detach from the convex portion. Moreover, when using an adhesive agent, an uneven | corrugated | grooved part functions as a retention part or a retention part of an adhesive agent, and it becomes easy to arrange | position an adhesive agent. In many cases, the concavo-convex portion is arranged so as to go around the outer periphery of the convex portion.

  A cellular phone according to the present invention includes any one of the above-described wiring structure. This makes it possible to obtain a mobile phone with excellent waterproofness using easily available and inexpensive parts.

  The wiring component of the present invention includes a wiring body and a heat shrinkable tube. In this wiring component, the wiring body passes through the heat shrinkable tube. In the heat shrinkable tube, the inner diameter of the portion on one end side is larger than the inner diameter of the other portion, and the portion on the other end shrinks to the wiring body. It is characterized by being in close contact with.

  By using the above-described wiring component, on the assembly side, it is possible to obtain waterproofness by heating only one end side of the heat-shrinkable tube to be contracted and brought into close contact with the convex portion of the wiring body insertion port. . At the same time, one end side of the wiring body can be attached to the housing by the heat shrinking / adhering treatment, thereby facilitating the assembly work. When the wiring body passes through the heat-shrinkable tube in the wiring component, there is still room for heat shrinkage, so there is a comparatively large margin, so it passes through, but there is no substantial difference from “passing”.

  Another wiring component of the present invention includes a wiring body and a heat shrinkable tube, and the wiring body has a length that passes through the heat shrinkable tube. And in a heat contraction tube, the internal diameter of the part of both ends is larger than the internal diameter of the part between this both ends, It is characterized by the above-mentioned.

  According to said structure, the wiring body has passed through the inside of the heat-shrinkable tube between two erected housings. The wiring body can take advantage of its elasticity and flexibility at the time of assembling work and at the time of opening and closing the housing after assembling only by being loosely restrained by the heat shrinkable tube. On the assembly side, heat contraction work is performed on the convex part of the wiring body insertion port of the two housings, and the wiring body is movable as described above, so that electrical connection work using a connector is easy. Can be

  According to the present invention, it is possible to provide an arrangement structure of a wiring body, a cellular phone using the same, and a wiring component that can be waterproofed while wiring into the housing without using a mold. it can.

(Embodiment 1)
FIG. 1 is a diagram showing a wiring body arrangement structure 10 according to Embodiment 1 of the present invention. In FIG. 1, the housing 11 is provided with a wiring body insertion port 11 h, and the convex portion 11 d of the wiring body insertion port is in close contact with the heat shrinkable tube 5. The FPC 3 that is a wiring body passes through the wiring body insertion port 11 d of the housing 11. The heat-shrinkable tube 5 includes a portion 5a corresponding to the convex portion 11d of the insertion port (hereinafter referred to as the insertion port portion 5a) and a portion 5b corresponding to the FPC wiring portion 3b (hereinafter referred to as the wiring portion 5b). Thus, the FPC 3 can be inserted into the housing 11 while maintaining waterproofness. Further, the FPC 3 is positioned to some extent by the heat-shrinkable tube 5 and helps to improve workability when the entire apparatus (for example, a mobile phone) is assembled. An electrode portion 3a is provided at the tip of the FPC 3, and is electrically connected to an electrode such as a connector. The electrode portion at the other end of the FPC 3 is not visible because it is located in the housing 11, but is connected to a connector or the like such as a display unit substrate inside the housing 11.

  FIG. 2 is a diagram showing a wiring component 20 used in the FPC arrangement structure of FIG. 1, that is, a component 20 including the FPC 3. In FIG. 2, an electrode portion 3a is provided at one end of the FPC 3, and a wiring 3c is bound to the other end, and a printed circuit board 3d is connected to the tip of the wiring 3c. In order to show many examples of wiring bodies, the type of wiring bodies on one end side and the other end side is changed to FPC on one side and wiring (coaxial line) on the other side. However, it is common that both ends are made of the same type of wiring body. In FIG. 2, the wiring part 3b of FPC3 shows the flat form example of thickness about a paper piece. On the other hand, a round cross section is exhibited at the end where the wires are bound. However, it goes without saying that the printed circuit board 3d forms the electrode portion 3a, and the wiring 3c is the wiring portion 3b. Therefore, in the following description, the printed circuit board 3d is referred to as an electrode portion 3a, and the wiring 3c is referred to as a wiring portion 3b. In FIG. 2, the wiring portion 5b of the heat-shrinkable tube 5 is in close contact with the wiring portion 3b of the FPC 3, but before the insertion port portion 5a is thermally contracted with the convex portion 11d of the insertion port 11h. Holds a larger diameter so as to include the outer diameter of the convex portion 11d. However, the wiring portion 5b may also have a diameter larger than the width of the wiring portion 3b of the FPC before the FPC 3 is attached to the housing 11, and is closely attached to the wiring portion 3b by thermal contraction at the time of attachment. You may do it. A method for forming the arrangement structure by attaching the FPC 3 to the housing 11 will be described in detail later.

  FIG. 3 is a cross-sectional view of the vicinity of the wiring body insertion port 11h in the FPC arrangement structure 10 shown in FIG. In the heat shrinkable tube 5, the insertion port portion 5 a is in close contact with the convex portion 11 d located in the insertion port 11 h of the housing 11, and the wiring portion 5 b is in close contact with the wiring portion 3 b of the FPC 3. This close contact is realized by heat shrinkage of the heat shrinkable tube 5. Since the heat shrinkable tube 5 has a circular cross section and the wiring portion 3b of the FPC 3 is a thin flat plate, the heat shrink of the heat shrinkable tube 5 causes deformation such as the FPC 3 being bent along the width direction. There is a fear. For this reason, it is necessary to appropriately select the inner diameter and tube thickness (tube thickness) of the heat-shrinkable tube in accordance with the size of the FPC 3, particularly the width size. The heat-shrinkable tube 5 is made of polyethylene, ethylene copolymer, vinyl chloride, silicone rubber or the like as a main material and subjected to crosslinking such as electron beam irradiation crosslinking, chemical crosslinking, and water crosslinking in order to impart heat shrinkability. After that, anything may be used as long as it is heated and expanded in the radial direction and then cooled. In particular, a polyolefin resin composition crosslinked by electron beam irradiation is preferably used as the main material.

  As shown in FIG. 4, the concavo-convex portion 11 t may circulate around the outer peripheral surface of the convex portion 11 d of the insertion port 11 h of the housing 11. The waterproofness or watertightness between the top part (there are a plurality in FIG. 4) of the concavo-convex part 11t and the insertion port part 5a of the heat shrinkable tube 5 can be enhanced. The concavo-convex portion 11t may be formed by one rounded convex portion or top portion. As shown in FIG. 4, an uneven portion 11 t may be provided on the outer peripheral surface of the convex portion 11 d of the housing 11, but the convex portion 11 d of the housing is provided by providing fine unevenness on the inner surface of the heat shrinkable tube 5. You may raise the frictional force with the outer peripheral surface.

  The heat-shrinkable tube 5 may be constituted by applying an adhesive to the inner surface, or may be formed in multiple layers using the adhesive as an inner layer agent. Moreover, you may apply | coat to the side of the housing | casing 11 of the other party of contact | adherence instead of arrange | positioning to the heat contraction tube 5. FIG. Any adhesive may be used as long as it can maintain water tightness. However, when the adhesive is disposed on the inner surface of the heat shrinkable tube 5, a water-repellent hot melt adhesive is used because it is adhered when heat shrinking. Good. FIG. 5A is a diagram illustrating an example in which the adhesive 7 is disposed and bonded to a portion where the housing 11 and the heat shrinkable tube 5 are in close contact with each other. Here, an uneven portion 5t can be provided on the inner surface of the thermal bonding tube 5 so that the adhesive 7 can easily stay or stay. FIG. 5B shows a case where the adhesive 7 is disposed and bonded between the outer peripheral surface of the convex portion 11 d of the housing 11 and the wiring portion 3 b of the FPC and the inner surface of the heat shrinkable tube 5. FIG. In this case, it is preferable to provide an uneven portion 5 t on the inner surface of the heat shrinkable tube 5 to improve the retention of the adhesive 7. By improving the retention of the water-repellent adhesive 7, the waterproof property of the FPC arrangement structure can be further improved.

Next, a procedure for disposing the FPC 3 as a wiring body in the housing 11 will be described. In this case, two types of wiring components 20 can be used.
(H1): FIG. 6 is a diagram showing the wiring component 20 in which the wiring portion 5b of the heat shrinkable tube 5 is in close contact with the wiring portion 3b of the FPC 3. The insertion port portion 5a at the end of the heat shrinkable tube 5 of the wiring component 20 remains in an expanded state. As shown in FIG. 6, the expanded diameter end portion 5 a is pressed against the outer surface of the housing 11 so as to include the convex portion 11 d of the wiring body insertion port 11 h of the housing 11. In this state, the convex portion 11d of the housing and the insertion opening portion 5a of the heat-shrinkable tube 5 are not in close contact with each other so that there is a little space. Thereafter, the insertion opening portion 5a of the heat shrinkable tube 5 is heated to a temperature specific to the constituent material of the heat shrinkable tube to cause shrinkage, and the insertion opening portion 5a is brought into close contact with the convex portion 11d of the housing. .

(H2): FIGS. 7A to 7C are diagrams showing a procedure for forming a wiring body arrangement structure using wiring components in which the FPC 3 and the heat shrinkable tube 5 are separated. . As shown in FIG. 7A, the FPC 3 is passed through the wiring insertion port 11 h of the housing 11. Next, as shown in FIG. 7B, one end face of the heat shrinkable tube 5 is pressed against the outer wall of the housing 11 so as to include the convex portion 11d. Next, as shown in FIG. 7C, the entire heat shrinkable tube 5 is heat-shrinked, and the heat-shrinkable tube 5 is brought into close contact with the convex portion 11d and the FPC wiring portion 3b of the housing. Thereby, an arrangement structure of the FPC 3 excellent in prevention can be obtained.

(Heat-shrinkable tube): The heat-shrinkable tube 5 is a tube made of a synthetic resin produced by extrusion molding or the like, and after being subjected to a crosslinking treatment by electron beam irradiation to impart heat-shrinkability, is expanded in the radial direction under heating. Then, it is manufactured by quenching in the expanded state. As described above, the cross-linking treatment can use chemical cross-linking, water cross-linking or the like in addition to electron beam irradiation. Since the synthetic resin is required to have water resistance, insulation, etc., a polyolefin-based resin is preferably used. Examples of the polyolefin resin include low density polyethylene (LDPE), linear low density polyethylene (L-LDPE), and very low density polyethylene (VLDPE). In addition, in order to impart flexibility to the above polyolefin-based resin, a monomer other than the α-olefin can be introduced. Copolymers such as ethylene-propylene-diene copolymer (EPDM), ethylene-methyl acrylate copolymer (EMA), ethylene-ethyl acrylate copolymer (EEA), and ethylene-vinyl acetate copolymer (EVA) are also available. It can be preferably used.
The dimensions of the heat shrinkable tube will be described. In the case of a nominal inner diameter of 5 mm before heat shrinkage, that is, in a state where the diameter is expanded, normally, the inner diameter is slightly more than 5 mm, for example, in the range of 5.60 ± 0.30. And after shrinking, it shrinks to an inner diameter of 2.90 mm level, for example. As for the wall thickness, when the nominal thickness is 0.20 mm before shrinkage, the thickness becomes 0.4 mm ± 010 mm after shrinkage.
As the heat-shrinkable tube, a commercially available product such as Sumitube (registered trademark) of Sumitomo Electric Fine Polymer Co., Ltd. can be used.
(Adhesive): The casing is made of a lightweight metal such as magnesium alloy, aluminum alloy, or titanium alloy, or a resin-coated material, especially a fluororesin-coated material. Further, an insulating resin is coated on the FPC or the like. Any adhesive can be used as long as it adheres to the casing and the insulating resin.

  FIG. 8 is a perspective view showing a cellular phone or cellular phone 50 including the wiring body arrangement structure 10 shown in FIG. FIG. 9 is a cross-sectional view of the mobile phone 50. In FIG. 8, the mobile phone 50 includes an input unit 54 and a display unit 53 connected to the input unit 54 with a hinge 42 interposed therebetween. The input unit 54 and the display unit 53 can be opened and closed by rotating about the hinge 42 as an axis. The display unit 53 is provided with a display screen 56 using an LCD (Liquid Crystal Display). A speaker 58 is provided above the display screen 56 of the display unit 53 (in a direction away from the hinge 42). The input unit 54 has a plurality of input keys (hereinafter simply referred to as “keys”) 57 for inputting symbols such as telephone numbers and alphabets. In addition, a microphone 59 is disposed at the end opposite to the hinge 55 when viewed from the input unit 54.

  The mobile phone 50 is provided with a first housing 41 located on the input unit 54 and a second housing 43 located on the display unit 53, and a hinge unit 42 is provided therebetween. As shown in FIG. 9, the input key substrate 31 of the mobile phone is accommodated in the first casing 41, and the display unit substrate 32 is accommodated in the second casing 43. Information input on the input key substrate 31 is delivered to the display unit substrate 32 via the FPC 3. The wiring portion 3b of the FPC 3 is preferably arranged in the first and second casings 41 and 43 by making it long and turning around the hinge shaft 42a. In the space in which the input key board 31 of the first housing 41 is housed, the portion other than the FPC insertion port 11h is substantially sealed. In addition, in the space in which the display unit substrate 32 of the second housing 43 is accommodated, portions other than the FPC insertion port 11h are substantially sealed. In FIG. 9, the FPC 3 passes through the FPC insertion port 11h of the first housing 41, and the heat shrinkable tube 5 is formed between the insertion port portion 5a and the wiring portion 5b. It is in close contact with the surface and the FPC wiring portion 3b. An end of the FPC 3 in the first housing 41 is connected to the connector 21 via the electrode portion 3a. Moreover, the end in the 2nd housing | casing 43 of FPC3 is connected to the connector 22 through the electrode part 3a.

  Any waterproof structure may be used in the FPC insertion port 11h of the second housing 43. In FIG. 9, a packing 17 is disposed on a pedestal 16 bonded to the FPC wiring portion 3 b with an adhesive 7, and a waterproof structure is formed between the packing 17 and the housing wall. As a result, the two casings 41 and 43 that are substantially sealed except for the insertion port 11 h are provided with a waterproof wiring body arrangement structure at the insertion port 11 h and are connected by the wiring 3. As a result, the mobile phone 50 can be used in a bath or a pool.

  In the mobile phone 50 shown in FIG. 9, the packing 17 is used for the insertion port 11 h of the second housing 43. However, as shown in FIG. 10, even if the wiring body insertion port 11h of the second housing 43 is provided with a waterproof structure similar to the heat shrinkable tube 5 provided in the insertion port 11h of the first housing 41. Good. As a result, it is possible to arrange the wiring body while ensuring waterproofness without increasing the number of parts. In particular, in the case of the waterproof structure shown in FIG. 10, since only the heat shrinkable tube 5 is used, it is not necessary to use a mold. For this reason, it is possible to provide a cheap waterproof structure that can quickly respond to a mobile phone that frequently repeats model upgrades. As described above, the arrangement structure of the wiring body in this embodiment is important for a mobile phone, but is not limited to a mobile phone and can be used for other electrical products.

(Embodiment 2)
FIG. 11 is a diagram showing the mobile phone 50 according to Embodiment 2 of the present invention. The structure in which the first and second casings 41 and 43 and the hinge 42 are arranged between them is the same as that of the cellular phone 50 (FIGS. 7 and 8) in the first embodiment. The present embodiment is characterized in that the heat-shrinkable tube 5 is continuously arranged from the insertion port 11h of the first housing 41 to the insertion port 11h of the second housing 43. The insertion port portions 5a located at both ends of the heat shrinkable tube 5 are in close contact with the outer peripheral surface of the convex portion 11d of the insertion port 11h of the first and second housings 41 and 43. It is preferable that the wiring portion 5b of the heat shrinkable tube 5 is not in close contact with the wiring portion 3b of the FPC 3 and has a small gap in a non-contact state. As a result, the wiring bodies 3 and 5 can be flexibly deformed without increasing the rigidity or the like. The wiring portion 3b of the FPC and the wiring portion 5b of the heat-shrinkable tube become thicker, and it is not a good idea to make the hinge shaft 42a go around, but as shown in FIG. It is good to arrange between the casings 41 and 43. However, the wiring portion 5b of the heat-shrinkable tube 5 may be brought into close contact with the wiring portion 3b of the FPC, and an appropriate one may be used depending on the situation.

  FIG. 12 is a diagram showing the wiring component 20 used in FIG. The wiring portion 5b of the heat-shrinkable tube 5 is not in close contact with the FPC wiring portion 3b, has a gap, and is loosely restrained. The insertion port portion 5a of the heat-shrinkable tube 5 has a diameter including the convex portions 41d and 43d of the housing insertion port. The FPC 3 shown in FIG. 12 has a plate shape in which the wiring portion 3b has a thickness of about a piece of paper, but may be a wiring body in which wirings are bundled to have a round cross section. FIG. 13 is a diagram showing a wiring component 20 using a circular cross-section wiring body 3 in which a large number of wirings are bundled. The wiring part 5b of the heat-shrinkable tube 5 is not in close contact with the wiring part 3b of the wiring body 3 and has a gap, as in FIG. Such a structure having a gap between the wiring body and the heat shrinkable tube is advantageous in that when the wiring body 3 has a round cross section, there is no useless space. The electrode portion 3a of the wiring body 3 is preferably formed by connecting a printed circuit board.

  Although the embodiments and examples of the present invention have been described above, the embodiments and examples of the present invention disclosed above are merely examples, and the scope of the present invention is the implementation of these inventions. It is not limited to the form. The scope of the present invention is indicated by the description of the scope of claims, and further includes meanings equivalent to the description of the scope of claims and all modifications within the scope.

  INDUSTRIAL APPLICABILITY The present invention can provide a waterproof wiring body arrangement structure promptly and inexpensively without using a mold in the field of cellular phones or the like that frequently upgrade models.

It is a figure which shows the arrangement structure of the wiring body (FPC) in Embodiment 1 of this invention. It is a figure which shows the wiring components containing the wiring body of FIG. It is sectional drawing of the insertion port vicinity of the FPC arrangement | positioning structure shown in FIG. It is sectional drawing at the time of making an unevenness | circulation around the outer peripheral surface of the convex part of the insertion port of a housing | casing. (A) is a figure which shows the state which adhere | attached the housing | casing and the heat-shrinkable tube with the adhesive agent, (b) is a figure which shows the state which adhere | attached the housing | casing, FPC, and the heat-shrinkable tube with the adhesive agent. It is. It is a figure explaining one of the assembly methods of the FPC arrangement | positioning structure of FIG. 2A and 2B are diagrams for explaining another example of the assembly method of the FPC arrangement structure of FIG. 1, in which FIG. 1A shows a state in which an FPC is inserted into an FPC insertion port of a housing, and FIG. A state in which the tube is pressed against the housing in the vicinity of the insertion port so as to include the convex portion is shown, and (c) shows a state in which the tube is heated and the insertion port portion is thermally contracted to be in close contact with the convex portion. It is a perspective view which shows the mobile telephone containing the FPC arrangement | positioning structure shown in FIG. It is sectional drawing which shows the mobile telephone which contains the FPC arrangement | positioning structure shown in FIG. 1 in the one housing | casing side. It is sectional drawing which shows the mobile phone which contains the FPC arrangement | positioning structure shown in FIG. 1 about both housings. It is sectional drawing which shows a mobile telephone provided with the arrangement | positioning structure of the wiring body (FPC) in Embodiment 2 of this invention. It is a figure which shows the wiring components containing the wiring body of the arrangement structure of the wiring body of FIG. FIG. 11 is a diagram showing a wiring component including a modified wiring body in the wiring body arrangement structure of FIG. 10.

Explanation of symbols

  3 Wiring body (FPC), 3a Electrode part (printed circuit board), 3b Wiring part (wiring), 3c wiring, 3d printed circuit board, 5 heat shrinkable tube, 5a Heat shrinkable tube insertion part, 5b Heat shrinkable tube Wiring part, 7 Adhesive, 10 Wiring body arrangement structure, 11 Housing, 11d Convex part, 11h Wiring body insertion port, 11t Convex part of convex part, 16 Packing base, 17 Packing, 20 Wiring parts, 21 , 22 Connector, 31 Input key board, 32 Display part board, 41 First housing, 41d Convex part, 41h Wiring body insertion port, 42 Hinge, 42a Hinge shaft, 43 Second housing, 43d Convex part 43h Wiring body insertion port, 50 mobile phone (machine), 53 display unit, 54 input unit, 56 display screen, 57 keys, 58 speaker, 59 microphone.

Claims (9)

An arrangement structure of the wiring body provided for inserting the wiring body into the housing while maintaining waterproofness,
A wiring body, a housing, a heat shrinkable tube,
A convex wiring body insertion port provided in the housing;
The wiring body passes through the heat shrinkable tube and the wiring body insertion port,
One end side of the heat-shrinkable tube shrinks and adheres to the convex portion of the wiring body insertion port,
An arrangement structure of a wiring body, wherein the other end side of the heat-shrinkable tube is contracted and adhered to any member so as to maintain waterproofness.   2. The wiring body arrangement structure according to claim 1, wherein the other end side of the heat shrinkable tube is contracted and adhered to the wiring body.   The housing includes another housing different from the housing, the other housing has a convex wiring body insertion port, the wiring body passes through the wiring body insertion port, and the other end of the heat shrinkable tube. 2. The wiring body arrangement structure according to claim 1, wherein the side is contracted and adhered to a convex portion of the wiring body insertion port of the other casing.   The arrangement structure of the wiring body according to claim 3, wherein the heat shrinkable tube portion between the one end side and the other end side of the heat shrinkable tube is in a non-contact state with respect to the wiring body. .   The part of the other member to which the edge part of the said heat contraction tube closely_contact | adheres and the edge part of the said heat contraction tube are adhere | attached with the adhesive agent, The any one of Claims 1-4 characterized by the above-mentioned. Wiring body arrangement structure.   The uneven | corrugated | grooved part is provided in the surface of the other party to which the edge part of the said heat contraction tube contact | adheres, and / or the said contact surface of the heat contraction tube, It is any one of the Claims 1-5 characterized by the above-mentioned. The arrangement structure of the wiring body according to item 1.   A mobile phone comprising the wiring body arrangement structure according to any one of claims 1 to 6. A wiring component comprising a wiring body and a heat shrinkable tube,
The wiring body passes through the heat shrinkable tube,
In the heat shrinkable tube, the inner diameter of a portion on one end side is larger than the inner diameter of the other portion, and the other end portion contracts and is in close contact with the wiring body. A wiring component comprising a wiring body and a heat shrinkable tube,
The wiring body has a length that passes through the heat-shrinkable tube,
In the heat shrinkable tube, an inner diameter of a portion at both ends is larger than an inner diameter of a portion between the both ends.

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