WO2010026935A1 - Structure de joint étanchéité, procédé de formation d'une structure de joint d'étanchéité, corps de câblage et appareil électronique - Google Patents

Structure de joint étanchéité, procédé de formation d'une structure de joint d'étanchéité, corps de câblage et appareil électronique Download PDF

Info

Publication number
WO2010026935A1
WO2010026935A1 PCT/JP2009/065156 JP2009065156W WO2010026935A1 WO 2010026935 A1 WO2010026935 A1 WO 2010026935A1 JP 2009065156 W JP2009065156 W JP 2009065156W WO 2010026935 A1 WO2010026935 A1 WO 2010026935A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiring
spacer member
seal structure
hole
spacer
Prior art date
Application number
PCT/JP2009/065156
Other languages
English (en)
Japanese (ja)
Inventor
隆 春日
英彦 三島
和也 丸山
Original Assignee
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008225729A external-priority patent/JP5067669B2/ja
Priority claimed from JP2009174165A external-priority patent/JP4935864B2/ja
Application filed by 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Priority to US12/920,410 priority Critical patent/US8581118B2/en
Priority to KR1020117007509A priority patent/KR101220647B1/ko
Priority to GB1012426.1A priority patent/GB2475116B/en
Priority to CN200980134549.7A priority patent/CN102144433B/zh
Publication of WO2010026935A1 publication Critical patent/WO2010026935A1/fr

Links

Images

Classifications

    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components

Definitions

  • the present invention relates to a sealing structure for a casing of a portable terminal, a PDA, a personal computer, etc., a method for forming the sealing structure, a wiring body, and an electronic device including the same.
  • Patent Document 1 discloses an FPC integrated gasket formed integrally with the FPC (30) and formed in a grommet shape.
  • the FPC integrated gasket (1) is provided with a pair of gaskets (10) made of a rubber-like elastic body.
  • a protrusion (50) that seals the through hole (3) of the housing (2) is provided at the tip of each gasket (10).
  • the protrusion (50) has a tapered surface (53) inclined from the cross-sectional area surface (52) larger than the diameter of the through hole (3) of the housing (2) toward the tip surface (54).
  • the pair of gaskets (10) can transmit and receive electrical signals between circuits in each casing (2) while waterproofing the two casings (2).
  • the conventional FPC integrated gasket has the following problems.
  • An object of the present invention is to provide a seal structure or the like in an electronic device or the like that can flexibly cope with a design change of a wiring member such as an FPC and can be formed at low cost.
  • the seal structure of the present invention is a seal structure for sealing a through hole of a housing into which a wiring member is inserted.
  • the seal structure includes a spacer member disposed on one side of the through hole, and includes a covering member that fixes and seals the spacer member, the wiring member, and the housing.
  • the gap produced by the step corresponding to the thickness of the wiring member is filled with the covering by the seal structure of the present invention. This reliably prevents the entry of water or the like from the through hole.
  • the covering body can be configured by providing an opening through which the wiring member is inserted in the spacer member and an adhesive layer that closes the opening while embedding a part of the wiring member.
  • the wiring member extends from the through hole into the housing through the opening of the spacer member.
  • the spacer member Since the spacer member is fixed to the region around the through hole of the housing, the inside of the housing can be reliably sealed.
  • the spacer member only needs to have an opening through which the wiring member is inserted, and has a simple structure. Therefore, since the spacer member can be formed separately from the wiring member, the seal structure of the present invention can flexibly cope with a design change of the wiring member. Further, unlike Patent Document 1, it is not necessary to integrally mold with FPC or the like, so that the selection range of materials is expanded. Therefore, a waterproof structure can be realized at low cost by using a spacer member having a simple structure. If the spacer member is a thin ring or flat plate, a waterproof structure can be realized even in a narrow gap.
  • the covering includes a cover member that faces the spacer member with a part of the wiring member interposed therebetween, and an adhesive layer that closes a gap between the spacer member and the cover member while embedding a part of the wiring member.
  • This also provides a structure in which the wiring member and the spacer member are reliably sealed on one surface side of the spacer member. Therefore, a waterproof structure can be constructed at low cost by using a spacer member having a simpler structure without using a lid member.
  • the covering body may be configured to include a fixing member disposed between a region surrounding the opening of the housing and the spacer member. By attaching the fixing member on the surface of the spacer member facing the housing in advance, the spacer member can be easily attached to the housing.
  • a double-sided waterproof tape can be adopted as the fixing member.
  • the adhesive layer can be made of a resin adhesive having repairability (peelability). Since the adhesive layer is made of a repairable resin adhesive, it is possible to reconnect the wiring members. Therefore, a highly practical seal structure can be obtained.
  • thermosetting resin alone does not provide repairability and is not practical.
  • thermoplastic resin alone has a low adhesive strength and is not reliable.
  • the adhesive tape is used, the step due to the thickness of the wiring member is not filled.
  • thermosetting resins such as epoxy resins, phenol resins, acrylic resins, urethane resins, alkyd resins, unsaturated polyester resins, polyvinyl alcohol resins, acrylic resins
  • thermoplastic resins such as phenoxy resins and urethane resins
  • the covering body preferably further includes a tape member that covers a region around the through hole of the housing.
  • the stress applied to the covering can be relaxed by the tape member. Therefore, the reliability of the seal structure is improved.
  • the method for forming the seal structure of the present invention can be performed by the following procedure. First, the wiring member is inserted through the through hole (step (a)). Next, in the region surrounding the through hole in a closed ring shape, the space between the spacer member, the wiring member, and the housing is filled with a fluid of a resin adhesive having a repair property (step (b)). Thereafter, the resin adhesive is solidified (step (c)).
  • step (b) there is a method of pressing the spacer member from above after interposing the resin adhesive on at least a part of the surface where the spacer member contacts the wiring member or the casing.
  • a semi-cured film-like resin adhesive is interposed between the wiring member and the housing and fluidized by a hot press.
  • a resin adhesive that is a fluid is sandwiched between the wiring member and the housing and pressed from above the lid member.
  • the space between the casing, the wiring member, and the spacer member is filled with the fluid of the resin adhesive. Therefore, a highly waterproof seal structure can be formed by a simple process.
  • the covering portion includes a lid member facing the spacer member with a part of the wiring member interposed therebetween, and an adhesive layer that embeds a part of the wiring member and closes a gap between the spacer member and the lid member.
  • the covering portion can be configured to include an adhesive layer that closes an opening of the spacer member while embedding a part of the wiring member.
  • a fixing member constituting an adhesive layer can be provided in advance between the spacer member and the side opposite to the side where the adhesive layer is provided.
  • a double-sided waterproof tape can be adopted as the fixing member. If this structure is employ
  • the electronic device of the present invention has the above-described seal structure, and can form a waterproof structure for the electronic device at a low cost.
  • a typical example is a mobile terminal.
  • the wiring body is connected to the internal circuit of each casing through the through hole of each casing from the hinge portion or the slide portion.
  • the seal structure seals the area around the through hole of each housing. In particular, when the present invention is applied to a slide-type portable terminal having a small space, significant effects can be exhibited.
  • seal structure According to the seal structure, wiring body, and electronic device of the present invention, it is possible to realize a waterproof structure at low cost while flexibly responding to design changes of wiring members. Also, a waterproof structure can be provided in a thin space.
  • FIG. 9A to 9C are a plan view, a cross-sectional view taken along line IVb-IVb, and a cross-sectional view taken along line IVc-IVc, illustrating in detail the structure in the vicinity of the through hole of the input unit housing, respectively.
  • (A), (b) is a top view which shows the formation procedure of a seal
  • FIG. 1 is a figure which shows the 1st modification of Embodiment 1, and a 2nd modification in order, and is sectional drawing which shows the application
  • FIG. 1 is a figure which shows the 1st modification of Embodiment 1, and a 2nd modification in order, and is sectional drawing which shows the application
  • FIG. 1 is a figure which shows the 1st modification of Embodiment 1, and a 2nd modification in order, and is sectional drawing which shows the application
  • FIG. 6 is a cross-sectional view illustrating a configuration of a connection portion through a slide portion of a mobile terminal according to a third embodiment.
  • (A)-(c) is a top view which shows the formation procedure of the wiring body which concerns on Embodiment 3.
  • FIG. FIGS. 9A to 9C are a plan view illustrating a structure in the vicinity of the through hole of the input unit case in detail, a cross-sectional view taken along the line XIb-XIb, and a cross-sectional view taken along the line XIc-XIc, respectively.
  • 7 is a cross-sectional view of a seal structure according to Modification 1 of Embodiment 3.
  • FIG. 10 is a perspective view schematically showing a structure of an openable portable terminal according to a fourth embodiment. It is sectional drawing which shows the structure of the connection part via the hinge part of the portable terminal which concerns on Embodiment 4.
  • FIG. 10 is a perspective view schematically showing a structure of an openable portable terminal according to a fourth embodiment. It is sectional drawing which shows the structure of the connection part via the hinge part of the portable terminal which concerns on Embodiment 4.
  • FIG. 1 is a perspective view schematically showing the structure of a portable terminal (electronic device) to which the present invention is applied.
  • the mobile terminal 1 includes a display unit 3 for displaying various information, an input unit 4, and a slide unit 8.
  • the display unit 3 is provided with a display device 6 using a liquid crystal display panel, a speaker, and the like.
  • the input unit 4 is provided with input keys and a microphone.
  • the slide unit 8 is configured by slidingly fitting an outer frame 8a provided on the display unit 3 side and an inner frame 8b provided on the input unit 4 side.
  • FIG. 2 is a cross-sectional view illustrating a configuration of a connection portion through the slide portion 8 of the mobile terminal 1 according to the first embodiment.
  • FIG. 3 is a plan view of the wiring body 20.
  • the display unit 3 is provided with a display unit casing 31 and a display unit substrate 35 as main members.
  • the display unit substrate 35 includes a circuit or the like for sending a display signal to the display device 6.
  • the display unit casing 31 includes a first casing 31a and a second casing 31b that are connected to each other.
  • a through hole 33 is provided in the first housing 31a.
  • the input unit 4 is provided with an input unit casing 41 and an input unit substrate 45 as main members.
  • the input board 45 includes a circuit for controlling a signal sent from the input key.
  • the input unit housing 41 includes a first housing 41a and a second housing 41b that are connected to each other.
  • a through hole 43 is provided in the first housing 41a.
  • the wiring body 20 for connecting the input substrate 45 and the display unit substrate 35 through the slide unit 8 is provided.
  • the wiring body 20 includes an FPC 21 and harness portions 25a and 25b provided at both ends of the FPC 21.
  • Each harness part 25a, 25b is connected to each board
  • the seal portion 15 is provided in the vicinity of the through hole 33 of the display unit housing 31.
  • the seal portion 15 is provided with a covering body C including a spacer member 11 that covers one of the through holes 33 and an adhesive layer 17 that fixes the spacer member 11 to the housing.
  • the spacer member 11 is a flexible resin sheet.
  • the adhesive layer 17 is composed of a resin adhesive having a repair property as described later. The structure of the seal portion 15 will be described in detail with reference to FIGS. 4 (a) to (c).
  • FIGS. 4A to 4C are a plan view, in detail, showing a structure in the vicinity of the through hole 43 of the input unit housing 41, a cross-sectional view taken along the line IVb-IVb, and a cross-sectional view taken along the line IVc-IVc. .
  • the adhesive layer 17 includes a region between the FPC 21 and the first housing 41 a, a region between the FPC 21 and the spacer member 11, and a region between the spacer member 11 and the first housing 41 a. Is buried. That is, the adhesive layer 17 fixes the spacer member 11, the FPC 21, and the first housing 41a to each other. Moreover, the clearance gap between these is sealed and the coating body C is comprised. Note that the FPC 21 is also fixed to the first housing 41a by the second adhesive layer 17a on the back surface of the first housing 41a.
  • the second adhesive layer 17a is not for waterproofing but for stabilizing the work of forming the seal structure.
  • the resin adhesive constituting the adhesive layer 17 is a resin adhesive having repairability (peelability).
  • a repairable resin adhesive a resin in which a thermosetting resin and a thermoplastic resin are mixed can be used.
  • thermosetting resins such as epoxy resins, phenol resins, acrylic resins, urethane resins, alkyd resins, unsaturated polyester resins, polyvinyl alcohol resins, acrylic resins
  • thermoplastic resins such as phenoxy resins and urethane resins
  • the structure in the vicinity of the through hole 33 of the display unit casing 31 is basically the same as the structure shown in FIGS. 4A to 4C (see the enlarged sectional view of FIG. 2).
  • the portable terminal 1 has a waterproof structure that can be used in water or in a humid environment.
  • the FPC 21 generally has a structure including a base film on which a circuit layer is formed and a coverlay that covers the base film.
  • the material for the base film include polyimide resin, polyester resin, and glass epoxy resin.
  • the material for the coverlay the same material as that for the base film is generally used.
  • epoxy resin, acrylic resin, polyimide resin, polyurethane resin, etc. are used.
  • the wiring member constituting the wiring body 20 is not limited to the FPC 21.
  • FPC 21 In addition to the FPC 21, there are a rigid printed wiring board (PCB), a flat cable, and the like. With these flat wiring members, the spacer member 11 can be attached to realize a waterproof structure.
  • PCB printed wiring board
  • the spacer member 11 can be attached to realize a waterproof structure.
  • the material of the spacer member 11 includes glass epoxy resin, epoxy resin, acrylic resin, polyimide resin, polyurethane resin, and the like.
  • the same material as the base film or coverlay of the FPC 21 can be used.
  • FIG. 6 is a view showing a conventional seal structure for explaining the seal function.
  • 6A to 6C are a plan view of the comparative seal portion 16, a cross-sectional view taken along the line VIb-VIb, and a cross-sectional view taken along the line VIc-VIc in this order.
  • the same members as those in FIGS. 4A to 4C are denoted by the same reference numerals and description thereof is omitted.
  • a seal tape 19a such as a single-sided adhesive tape is provided instead of the spacer member 11.
  • the structure of the other members is the same.
  • the FPC 21 is affixed to the first housing 41a by the double-sided adhesive tape 17z.
  • the sealing tape 19a covers the FPC 21 and the double-sided adhesive tape 17z.
  • the comparison seal part 16 a step is formed between the FPC 21 and the double-sided adhesive tape 17z. For this reason, the double-sided pressure-sensitive adhesive tape 17z and the seal tape 19a have a leak region Rlk that cannot be sealed at the stepped portion. As a result, the comparative seal portion 16 cannot perform a waterproof function.
  • the spacer member 11, the FPC 21, and the first casing 41a are strongly fastened to each other by the shrinkage force of the resin adhesive of the adhesive layer 17.
  • a covered body C is formed.
  • a barrier without a gap is formed around the through-hole 43, and entry of water or the like is reliably prevented.
  • thermosetting resin such as an epoxy resin
  • a barrier without a leakage region can be formed.
  • thermosetting resin it is difficult to peel off, and reconnection (repair) cannot be performed. Therefore, the structure in which only the adhesive layer using the thermosetting resin is formed is not practical.
  • a thermoplastic resin has a low adhesive strength and poor adhesion reliability. The inventors of the present invention have confirmed by experiments that an adhesive layer having repairability and high adhesion reliability can be obtained by using the above-described resin adhesive.
  • FIGS. 5A and 5B are plan views showing the procedure for forming the seal portion 15.
  • a resin body 17x of a resin adhesive is applied so as to surround the periphery of the through hole 43 of the first housing 41a.
  • the FPC 21 and the spacer member 11 are attached from above the resin body 17x of the resin adhesive, and the spacer member 11 is pressed.
  • the resin body 17x includes, for example, the following two types.
  • the resin body 17x is a semi-cured adhesive film. In this case, the resin body 17x is sandwiched between the wiring member and the casing, and is heated and pressed from above the spacer member 11 to be fluidized.
  • the resin body 17x is a fluid. In this case, the resin body 17x may be sandwiched between the wiring member and the housing and pressed from above the spacer member 11. In any case, the gap between the spacer member 11, the FPC 21, and the first housing 41a is filled with the fluid of the resin adhesive.
  • the resin adhesive is solidified to form the adhesive layer 17 that fixes the spacer member 11, the FPC 21, and the first casing 41a to each other.
  • the substrate may be heated to a temperature that does not affect the FPC 21 or the like.
  • the spacer member 11, the FPC 21, and the first casing 41a are strongly fastened to each other by the shrinkage force of the resin adhesive accompanying solidification.
  • the cover C shown in FIGS. 4A to 4C is formed, and a seal structure is formed. That is, a barrier that reliably prevents the entry of water or the like is formed around the through hole 43.
  • FIGS. 7A and 7B are cross-sectional views showing a resin adhesive application method in the first and second modifications of the first embodiment.
  • a resin body 17 x that is a fluid of resin adhesive is applied to a part of the back surface of the FPC 21.
  • a resin body 17 x that is a fluid of resin adhesive is applied to a part of the back surface of the spacer member 11.
  • the resin body 17x of the resin adhesive enters the gap between the spacer member 11, the FPC 21, and the first housing 41a.
  • a resin body 17x made of a semi-cured adhesive film may be used and fluidized by a hot press.
  • the resin adhesive is solidified to obtain the seal structure shown in FIGS. 4 (a) to 4 (c).
  • FIGS. 8A to 8C are sequentially a plan view showing the structure in the vicinity of the through hole 43 of the input unit housing 41 in the second embodiment, a cross-sectional view taken along the line VIIIb-VIIIb, and a line VIIIc-VIIIc, respectively.
  • FIG. In the figure, the same members as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Also in the present embodiment, a seal structure provided on the slide portion 8 of the slide type mobile terminal shown in FIG. 1 will be described.
  • a seal tape 19 for sealing the spacer member 11 to the housing 41a is provided.
  • the structure in the vicinity of the through hole 33 of the display unit housing 31 is basically the same as the structure shown in FIGS.
  • seal tape 19 is provided in addition to the seal structure of the first embodiment, it is possible to more reliably prevent the spacer member 11 from being detached from the housing due to long-term use. it can.
  • FIG. 9 is a cross-sectional view illustrating a configuration of a connection portion through the slide portion 8 of the mobile terminal 1 according to the third embodiment.
  • symbol is attached
  • FIG. 9 is a cross-sectional view illustrating a configuration of a connection portion through the slide portion 8 of the mobile terminal 1 according to the third embodiment.
  • symbol is attached
  • a seal structure 15 for sealing the inside of the housing is provided in the vicinity of the through hole 33 of the first housing 31a of the display unit housing 31.
  • the seal structure 15 includes a spacer member 11 through which the FPC 21 is inserted, and a lid member 14 that covers the spacer member 11.
  • an adhesive layer 17 is provided to fill a gap between the spacer member 11 and the lid member 14 while embedding a part of the FPC 21.
  • the seal structure 15 is provided with a double-sided waterproof tape 13 which is a fixing member for fixing the spacer member 11 to the first housing 31a.
  • the FPC 21, the spacer member 11, and the first housing 31 a are fixed to each other on one surface side of the spacer member 11 by the spacer member 11, the lid member 14, the adhesive layer 17, and the double-sided waterproof tape 13.
  • a covering body C that seals and seals is formed.
  • FIG. 10A to 10C are plan views showing a procedure for forming the wiring body 20 according to the third embodiment.
  • a spacer member 11 having two openings is prepared.
  • the FPC 21 is inserted through the opening of each spacer member 11.
  • the harness portions 25a and 25b are attached to both ends of the FPC 21, respectively.
  • the spacer member 11 may be inserted.
  • the lid member 14 attached with an adhesive sheet such as an epoxy resin is attached on the spacer member 11 and the FPC 21.
  • the adhesive layer 17 is formed.
  • the adhesive layer 17 fills the gap between the spacer member 11 and the lid member 14 while burying a part of the FPC 21.
  • the wiring body 20 is formed.
  • a liquid such as an epoxy resin may be poured into the gap between the lid member 14 and the spacer member 11.
  • the cover member c 1 that seals the FPC 21, the cover member 14, and the spacer member 11 is constituted by the cover member 14 and the adhesive layer 17.
  • the cover C is configured by attaching the double-sided waterproof tape 13 (broken line) to the other surface (back surface) of the spacer member 11 at this stage.
  • FIGS. 11A to 11C are a plan view showing a structure in the vicinity of the through hole 43 of the input unit housing 41 in detail, a cross-sectional view taken along the line XIb-XIb, and a cross-sectional view taken along the line XIc-XIc, respectively.
  • the lid member 14 is handled as a transparent body.
  • the wiring body 20 shown in FIG. 10C that is, the wiring body 20 in which the spacer member 11, the adhesive layer 17, the lid member 14, etc. are attached in advance to the FPC 21, To be inserted.
  • the spacer member 11 is fixed to the area
  • the seal structure 15 for sealing the first housing 41a is formed.
  • the FPC 21 (wiring member) extends into the first housing 41 a through the opening of the spacer member 11 and the through hole 43.
  • the seal structure 15 in the vicinity of the through hole 33 of the display unit casing 31 is basically the same as the structure shown in FIGS. 4A to 4C (see the enlarged cross-sectional view of FIG. 2).
  • the portable terminal 1 of the present embodiment has a waterproof structure that can be used in water or in a humid environment.
  • the wiring member of the wiring body 20 is not limited to the FPC 21.
  • FPC 21 In addition to the FPC 21, there are a rigid printed wiring board (PCB), a flat cable, and the like. With these flat wiring members, the spacer member 11 can be attached to realize a waterproof structure.
  • PCB printed wiring board
  • the spacer member 11 can be attached to realize a waterproof structure.
  • the resin for the adhesive layer 17 an epoxy resin, an acrylic resin, a polyimide resin, a polyurethane resin, or the like can be used.
  • the double-sided waterproof tape 13 can be repaired by peeling the double-sided waterproof tape 13, so the resin of the adhesive layer 17 does not have to be repairable.
  • the same material as that of the spacer member 11 can be used.
  • the double-sided waterproof tape 13 include those obtained by applying butyl rubber, an acrylic pressure-sensitive adhesive, or the like to both surfaces of a base film such as a polyethylene warif base material, a polyester nonwoven fabric, and an aluminum foil.
  • the fixing member of the present invention is not limited to the double-sided waterproof tape, and an adhesive such as an epoxy resin, an acrylic resin, a polyimide resin, or a polyurethane resin may be used. In that case, a repairable resin adhesive similar to that in the first embodiment is used.
  • each member is as follows.
  • the thickness of the lid member 14 is about 12.5 to 125 ⁇ m.
  • the thickness of the spacer member 11 is about 12.5 to 125 ⁇ m.
  • the thickness of the FPC 21 is about 50 to 1000 ⁇ m.
  • the total thickness of the adhesive layer 17 plus the thickness of the FPC 21 is about 60 to 1500 ⁇ m.
  • the thickness of the double-sided waterproof tape 13 is about 50 to 500 ⁇ m.
  • the entire thickness of the seal structure 15 is about 135 to 2250 ⁇ m, and the structure is thin. Therefore, it can be easily provided in a place where the space is limited, such as the slide portion 8 of the sliding portable terminal.
  • the spacer member 11 has a simple structure as long as it has an opening. Therefore, since the spacer member 11 is formed separately from the FPC 21 (wiring member), it is possible to flexibly cope with a design change of the FPC 21 and the like. Further, since it is not necessary to integrally mold with the FPC 21 or the like, the selection range of materials can be expanded. Therefore, the waterproof structure can be realized at low cost by using the spacer member 11 having a simple structure.
  • FIG. 12 is a cross-sectional view of the seal structure 15 according to the first modification of the first embodiment.
  • FIG. 12 shows the seal structure 15 in a cross-section corresponding to FIG.
  • the seal structure 15 of this modification includes a seal tape 19 (tape member) that covers the area around the through hole of the cover C and the casing.
  • sealing tape 19 for example, a so-called single-sided waterproof tape can be used.
  • a butyl rubber, an acrylic pressure-sensitive adhesive, or the like is applied to one side of a base film such as a polyethylene base material, a polyester nonwoven fabric, or an aluminum foil.
  • This modification improves not only the waterproof function but also the reliability of the seal structure 15. That is, when tensile stress or the like is applied to the FPC 21, it is possible to reliably prevent the adhesive layer 17 and the lid member 14 (covering body C) from being peeled off or damaged.
  • FIG. 13A shows a procedure for forming the wiring body 20 according to the second modification of the third embodiment.
  • FIG. 13A two flat spacer members 11 are prepared.
  • the spacer member 11 has a cut 11a as an opening through which the FPC 21 can be inserted.
  • a slit may be formed as an opening through which the FPC 21 can be inserted.
  • the wiring body 20 is formed by inserting the FPC 21 through the cuts 11a of the spacer members 11 as shown in FIG. Thereafter, the harness portions 25a and 25b are attached to both ends of the FPC 21, respectively. As described above, the harness portions 25a and 25b can be attached to the FPC 21 in advance. In this case, as a matter of course, the cut 11a and the like are dimensioned so that the harness portions 25a and 25b can be inserted.
  • a liquid adhesive such as epoxy resin is dropped on the spacer member 11 and the FPC 21.
  • the adhesive layer 17 is formed by curing the epoxy resin or the like while pressing from above with the pressing plate 50. Thereafter, the pressing plate 50 is removed.
  • a material having poor adhesion such as a fluororesin is used.
  • the adhesive layer 17 fills the cuts 11 a of the spacer member 11 while embedding a part of the FPC 21. That is, one surface side of the spacer member 11 is sealed only by the adhesive layer 17. Thereby, the wiring body 20 is formed.
  • the adhesive layer 17 and the spacer member 11 constitute a covering portion c1 that seals the FPC 21.
  • the double-sided waterproof tape 13 may be attached to the other surface (back surface) of the spacer member 11 at this stage.
  • the spacer member 11 is fixed to the first casings 31a and 41a by the fixing member 13 such as a double-sided waterproof tape. Thereby, the seal structure using the wiring body 20 of the modification 2 is obtained (not shown).
  • a waterproof structure can be realized without using a lid member. Since the lid member is unnecessary, a thinner seal structure than that of the third embodiment can be obtained. In addition, you may affix the sealing tape 19 shown in FIG. 11 on the adhesive bond layer 17 of this modification 2. FIG. Thereby, the fall of the reliability by having no cover member can be prevented.
  • FIG. 14A is a plan view of a spacer member according to the third modification of the third embodiment
  • FIG. 14B is a plan view of the spacer member according to the fourth modification of the third embodiment.
  • the opening width of the spacer member 11 needs to be considerably larger than the width of the FPC. Therefore, it is not preferable because the opening needs to be filled with an adhesive. Therefore, in the spacer member 11 according to the third modification of the third embodiment shown in FIG. 14A, a dividing portion 11b that communicates from the opening to the lateral outside is provided at one location. Thereby, even if it is FPC21 which attached harness part 25a, 25b previously, the part of FPC21 can be put into opening directly from the side via the said parting part 11b. When the subsequent adhesive layer 17 is formed, the divided portion 11b can be joined and integrated. Therefore, the spacer member 11 only needs to consider the opening size according to the width of the FPC 21, and a good seal structure can be obtained.
  • the spacer member 11 is composed of a pair of divided spacer pieces 11c and 11c.
  • the pair of spacer pieces 11c and 11c are divided at positions on both sides in the middle of the opening in the direction in which the FPC 21 is inserted.
  • the FPC 21 can be inserted into the opening of the spacer member 11.
  • the pair of spacer pieces 11c and 11c can be combined and integrated when the adhesive layer 17 is formed thereafter.
  • the spacer member 11 needs to have an opening and be connected in an annular shape in a state where the spacer member 11 is assembled as a seal structure 15, but does not necessarily have an integral shape in a state before being incorporated. Therefore, also in the fourth modification, the spacer member 11 formed of the spacer pieces 11c and 11c only needs to take into account the opening size according to the width of the FPC 21, and a good seal structure can be obtained.
  • FIG. 15 is a perspective view schematically showing the structure of the openable portable terminal 1 (electronic device) according to the fourth embodiment.
  • the mobile terminal 1 includes a display unit 3 for displaying various types of information, an input unit 4, and a hinge unit 5.
  • the display unit 3 is provided with a display device 6 using a liquid crystal display panel, a speaker, and the like.
  • the input unit 4 is provided with input keys and a microphone.
  • the hinge part 5 has connected the input part 4 and the display part 3 so that rotation is possible.
  • FIG. 16 is a cross-sectional view illustrating a configuration of a connection portion via the hinge portion 3 of the mobile terminal 1 according to the second embodiment.
  • members having the same functions as those shown in FIG. 2 of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
  • a through hole 33 is provided between the first housing 31 a and the second housing 31 b in the display unit housing 31.
  • a through hole 43 is provided between the first housing 41a and the second housing 41b.
  • the wiring body 20 for connecting the input unit substrate 45 and the display unit substrate 35 through the hinge unit 5 is provided.
  • the wiring body 20 includes an FPC 21 and harness portions 25 a and 25 b provided at both ends of the FPC 21.
  • Each harness part 25a, 25b is connected to each board
  • a seal structure 15 is provided around the through hole 33 of the display unit casing 31 and the through hole 43 of the input unit casing 41.
  • the seal structure 15 includes the spacer member 11, the double-sided waterproof tape 13 (adhering member), the lid member 14, and the adhesive layer 17. That is, the configuration and function of the seal structure 15 are as described in the first and third embodiments.
  • the wiring body 20 and the seal structure 15 of the present invention can be applied not only to a slide type mobile terminal but also to an open / close type mobile terminal.
  • the present invention can exhibit a remarkable effect when applied to an electronic device in which space is limited and waterproofing is difficult with other seal structures, such as a sliding portable terminal.
  • the wiring body and seal structure of the present invention can be used for electronic devices such as portable terminals, PDAs, personal computers, and digital cameras.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Telephone Set Structure (AREA)

Abstract

Cette invention se rapporte à une structure de joint d'étanchéité capable de faire face de manière souple à un changement de conception d'un élément de câblage et de réaliser de façon économique une structure étanche à l'eau, à un procédé de formation de la structure de joint d'étanchéité, à un corps de câblage et à un appareil électronique qui utilise la structure et le corps de câblage. Cette invention se rapporte à une structure de joint d'étanchéité (15) destinée à étancher des trous traversants (33, 43) dans des logements (31, 41), un élément de câblage (20) étant inséré dans les trous traversants. La structure de joint d'étanchéité (15) est dotée de corps de couvercle (C) qui comprennent des entretoises (11), chacune d'elles étant disposée sur un côté de chacun des trous traversants. Les corps de couvercle (C) fixent et étanchent entre entretoises (11), l'élément de câblage (20) et les logements (31, 41) les uns par rapport aux autres.
PCT/JP2009/065156 2008-09-03 2009-08-31 Structure de joint étanchéité, procédé de formation d'une structure de joint d'étanchéité, corps de câblage et appareil électronique WO2010026935A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/920,410 US8581118B2 (en) 2008-09-03 2009-08-31 Seal structure, method of forming seal structure, wire body, and electronic apparatus
KR1020117007509A KR101220647B1 (ko) 2008-09-03 2009-08-31 시일 구조, 시일 구조의 형성 방법, 배선체 및 전자 기기
GB1012426.1A GB2475116B (en) 2008-09-03 2009-08-31 Seal structure, method of forming seal structure, wire body, and electronic apparatus
CN200980134549.7A CN102144433B (zh) 2008-09-03 2009-08-31 密封结构、形成密封结构的方法、导线体和电子设备

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2008-225729 2008-09-03
JP2008225729A JP5067669B2 (ja) 2008-09-03 2008-09-03 シール構造，その形成方法および電子機器
JP2008279187 2008-10-30
JP2008-279187 2008-10-30
JP2009174165A JP4935864B2 (ja) 2008-10-30 2009-07-27 配線体、シール構造及び電子機器
JP2009-174165 2009-07-27

Publications (1)

Publication Number Publication Date
WO2010026935A1 true WO2010026935A1 (fr) 2010-03-11

Family

ID=41797103

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/065156 WO2010026935A1 (fr) 2008-09-03 2009-08-31 Structure de joint étanchéité, procédé de formation d'une structure de joint d'étanchéité, corps de câblage et appareil électronique

Country Status (1)

Country Link
WO (1) WO2010026935A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102918942A (zh) * 2010-07-15 2013-02-06 日本梅克特隆株式会社 密封构造体
JP2014072281A (ja) * 2012-09-28 2014-04-21 Sumitomo Electric Printed Circuit Inc 貫通孔のシール構造、これに用いる配線体、配線体の製造方法及び電子機器
CN107992226A (zh) * 2017-11-28 2018-05-04 长沙市宇顺显示技术有限公司 一种on-cell产品及其绑定区密封方法
CN110198610A (zh) * 2016-07-21 2019-09-03 川湖科技股份有限公司 机箱系统以及滑轨总成

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06145647A (ja) * 1992-11-04 1994-05-27 Nippon Tokushu Toryo Co Ltd 自己付着成形シーリング材
JPH07162166A (ja) * 1993-12-09 1995-06-23 Fanuc Ltd 電動機用ケーブルクランプ
JP2002023890A (ja) * 2000-07-10 2002-01-25 Matsushita Electric Ind Co Ltd 防水ふたを有する情報処理装置
JP2002216265A (ja) * 2001-01-23 2002-08-02 Hochiki Corp 火災報知設備の防水構造
WO2006095382A1 (fr) * 2005-02-18 2006-09-14 Fujitsu Limited Téléphone portable coulissant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06145647A (ja) * 1992-11-04 1994-05-27 Nippon Tokushu Toryo Co Ltd 自己付着成形シーリング材
JPH07162166A (ja) * 1993-12-09 1995-06-23 Fanuc Ltd 電動機用ケーブルクランプ
JP2002023890A (ja) * 2000-07-10 2002-01-25 Matsushita Electric Ind Co Ltd 防水ふたを有する情報処理装置
JP2002216265A (ja) * 2001-01-23 2002-08-02 Hochiki Corp 火災報知設備の防水構造
WO2006095382A1 (fr) * 2005-02-18 2006-09-14 Fujitsu Limited Téléphone portable coulissant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102918942A (zh) * 2010-07-15 2013-02-06 日本梅克特隆株式会社 密封构造体
JP2014072281A (ja) * 2012-09-28 2014-04-21 Sumitomo Electric Printed Circuit Inc 貫通孔のシール構造、これに用いる配線体、配線体の製造方法及び電子機器
CN110198610A (zh) * 2016-07-21 2019-09-03 川湖科技股份有限公司 机箱系统以及滑轨总成
CN107992226A (zh) * 2017-11-28 2018-05-04 长沙市宇顺显示技术有限公司 一种on-cell产品及其绑定区密封方法
CN107992226B (zh) * 2017-11-28 2020-10-30 长沙市宇顺显示技术有限公司 一种on-cell产品及其绑定区密封方法

Similar Documents

Publication Publication Date Title
KR101220647B1 (ko) 시일 구조, 시일 구조의 형성 방법, 배선체 및 전자 기기
JP4900106B2 (ja) シール構造、電子装置、携帯装置及び電子装置の製造方法
JP5003762B2 (ja) 密封構造、電子機器及びガスケットの製造方法
US8912454B2 (en) Seal structure
JP5457226B2 (ja) シール構造、電子装置、携帯装置及びシール方法
JP2006093510A (ja) 携帯型電子装置
WO2010026935A1 (fr) Structure de joint étanchéité, procédé de formation d'une structure de joint d'étanchéité, corps de câblage et appareil électronique
JP4966620B2 (ja) 電子機器
JP4580018B2 (ja) 携帯型電子機器
JP4935864B2 (ja) 配線体、シール構造及び電子機器
JP5423947B2 (ja) 配線体，シール構造および電子機器
JP5067669B2 (ja) シール構造，その形成方法および電子機器
JP5056648B2 (ja) 配線体，接続構造および電子機器
JP5374975B2 (ja) シール構造および電子機器
JP5258031B2 (ja) 接続フレキシブル配線基板、該配線基板の防水実装構造及び防水実装方法、並びに防水型携帯電子端末
JP2010045096A (ja) シール構造および電子機器
JP2010021173A (ja) 配線体，接続構造および電子機器
JP2014036197A (ja) 貫通孔のシール構造及び配線体
JP5598961B2 (ja) 携帯機器
CN206412536U (zh) 一种板对板连接器保护装置、电路板和移动终端
JP2010067491A (ja) 接続構造および電子機器
CN116436998A (zh) 一种电子设备
JP2014072281A (ja) 貫通孔のシール構造、これに用いる配線体、配線体の製造方法及び電子機器

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980134549.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09811461

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 1012426

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20090831

WWE Wipo information: entry into national phase

Ref document number: 1012426.1

Country of ref document: GB

WWE Wipo information: entry into national phase

Ref document number: 12920410

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20117007509

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 09811461

Country of ref document: EP

Kind code of ref document: A1