WO2012161099A1 - シール部材及び複合シール部材 - Google Patents

シール部材及び複合シール部材 Download PDF

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Publication number
WO2012161099A1
WO2012161099A1 PCT/JP2012/062706 JP2012062706W WO2012161099A1 WO 2012161099 A1 WO2012161099 A1 WO 2012161099A1 JP 2012062706 W JP2012062706 W JP 2012062706W WO 2012161099 A1 WO2012161099 A1 WO 2012161099A1
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WO
WIPO (PCT)
Prior art keywords
seal member
silicone gel
gel molded
seal
molded body
Prior art date
Application number
PCT/JP2012/062706
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English (en)
French (fr)
Japanese (ja)
Inventor
香織 小田桐
祐介 服部
Original Assignee
ポリマテック 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
Application filed by ポリマテック 株式会社 filed Critical ポリマテック 株式会社
Priority to CN201280024581.1A priority Critical patent/CN103635725B/zh
Priority to JP2013516333A priority patent/JP6101911B2/ja
Publication of WO2012161099A1 publication Critical patent/WO2012161099A1/ja

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
    • 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
    • H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment

Definitions

  • the present invention relates to a sealing member and a composite sealing member for sealing between components such as a casing, a case, and a substrate of an electronic device.
  • a portable electronic device such as mobile phones, portable audio players, digital cameras, and digital video cameras has been increasing. Many functions are added to these portable electronic devices, and the use environment of the portable electronic devices is also expanding. For example, a portable electronic device may be used in a place where it gets wet with water in daily life or leisure. In response to these needs, a waterproof function is added to portable electronic devices in order to prevent water droplets and dust from entering the devices.
  • an annular seal member made of rubber or thermoplastic elastomer is provided between parts such as a case and a lid that form the housing in order to prevent water droplets and dust from entering the housing.
  • the configuration is described.
  • Patent Document 3 discloses a connector that is connected to another electronic device via a cable.
  • the connector is provided with a connector cover to protect it from dust.
  • a seal member is provided inside the connector cover.
  • the first casing and the second casing that are divided into two via the hinge portion are connected by a flexible printed circuit board. Further, a waterproof function is added around the hinge portion by sandwiching the flexible printed circuit board with the packing.
  • An object of the present invention is to provide a sealing member that can suppress a load on components such as a casing to which the sealing member is attached while having a more excellent waterproof function.
  • a seal member that is compressed by the first member and the second member to seal between the first member and the second member.
  • the seal member has a compression set of 5% or less measured at 70 ° C. for 22 hours at a compression rate of 50 to 80% in accordance with JIS K6262 (ISO815), and JIS K2220 (ISO2137).
  • the silicone gel molded body has a penetration of 60 to 130 measured according to the above.
  • the compression set (JIS K6262 (ISO815)) measured under a condition of standing at 70 ° C. for 22 hours at a compression rate of 50% to 80% is composed of a silicone gel molded body having a compression rate of 5% or less.
  • the seal member In a state where the seal member is compressed by the first member and the second member, the seal member generates a strong elastic force in a direction opposite to the compression direction and tries to return to the original shape.
  • the penetration of the silicone gel molded body (JIS K2220 (ISO 2137)) is in the range of 60 to 130, it is extremely flexible compared to the rubber-like elastic body and is necessary for the first member and the second member. No more pressure is applied. Therefore, even if the sealing member is incorporated between the first member and the second member, the first member and the second member are not deformed or damaged.
  • the adhesiveness outstanding with respect to the 1st member and the 2nd member can also be exhibited.
  • first member and the “second member” mean, for example, a casing, a case component, a lid component, a cover component, a circuit board, an electronic component such as an IC chip, a connector, and a battery in a portable electronic device.
  • first member and the second member may be the same member (relation between the housing and the housing), or different members (relation between the cover component and the battery, the relationship between the cover component and the connector, the case, It may be a relationship between a component and an electronic component).
  • the silicone gel molded body preferably has self-adhesiveness.
  • the seal member made of the silicone gel molded body can be easily attached to the first member and the second member.
  • self-adhesive means the property which can be affixed on a 1st member or a 2nd member irrespective of the presence or absence of the pressurization with respect to a sealing member.
  • the sealing member is preferably made of an annular silicone gel molded body.
  • the silicone gel molded body is annular, it can be used in the same manner as an O-ring or packing. Therefore, high sealing performance can be obtained in a wide range of applications.
  • the sealing member is composed of at least two or more types of silicone gel molded bodies having different penetrations, and is formed by laminating at least two or more types of silicone gel molded bodies.
  • the penetration degree and thickness of each of the plurality of laminated silicone gel molded bodies has waterproof performance. Can be different. Therefore, the handleability of the seal member can be adjusted.
  • a thin silicone gel molded body with a penetration of 60 is laminated on a silicone gel molded body with a penetration of 130, a high flexibility of the silicone gel molded body with a penetration of 130 is imparted to the seal member. Can do. Thereby, the ease of handling by the silicone gel molded object of the relatively hard penetration 60 can be improved, maintaining the followability to the 1st member and the 2nd member of a sealing member.
  • a composite seal member configured by integrating the above-described seal member and at least one of the first member and the second member.
  • the composite seal member is formed by integrating the seal member of the present invention and at least one of the first member and the second member, the process of attaching the seal member to the first member or the second member can be omitted, and workability is improved. Will improve.
  • first and second members integrated with the seal member may be made of metal or resin.
  • the metal first and second members are inserted into a mold for molding the seal member, and the first and second members are integrated with the seal member by insert molding. can do. That is, since the first and second members are not deformed or discolored by the pressure or heat at the time of molding the seal member, a high-quality composite seal member can be manufactured. Further, since the first and second members are metal, the rigidity of the seal member can be increased even if the first and second members are thin. Therefore, the composite seal member is easier to handle than the seal member alone.
  • the first and second members are resin
  • the first and second members can be integrated by bonding or fusing to the silicone gel molded body constituting the sealing member.
  • the rigidity of the seal member can be increased while suppressing the manufacturing cost. Therefore, the composite seal member is easier to handle than the seal member alone.
  • a composite sealing member in which the sealing member is integrally formed on the surface of a resin film.
  • the sealing member is integrally formed on the surface of the resin film, it becomes easier to handle than the case of the sealing member alone. Therefore, it becomes easy to attach the composite seal member to the first member, the second member, or the like.
  • FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. Sectional drawing of the mobile telephone with which the battery cover was attached. Sectional drawing of the battery cover which concerns on the modification of 1st Embodiment. Sectional drawing of the mobile telephone with which the battery cover of FIG. 4 was attached.
  • the top view which looked at the connector cover which concerns on the modification of 2nd Embodiment from the inner side.
  • FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. Sectional drawing of the mobile telephone with which the battery cover was attached. Sectional drawing of the battery cover which concerns on the modification of 1st Embodiment. Sectional drawing of the mobile telephone with which the battery cover of FIG. 4 was attached.
  • FIG. 9 is a cross-sectional view taken along line 9-9 in FIG.
  • the disassembled perspective view which shows the case article to which the sealing member which concerns on 3rd Embodiment of this invention is applied.
  • the fragmentary sectional view which expands and shows a seal structure.
  • Sectional drawing of the seal structure which concerns on the modification of 3rd Embodiment.
  • the top view which shows the sealing component to which the sealing member which concerns on 4th Embodiment of this invention is applied.
  • FIG. 15 is a cross-sectional view taken along line 15-15 in FIG.
  • the mobile phone 110 includes a housing 13 as a second member and a battery lid 12 as a first member attached to and detached from the housing 13.
  • a seal member 11 is provided on the back surface 12 a of the battery lid 12 in order to prevent water from entering the battery 111, electrical connection parts (not shown), and the like in the housing 13.
  • a wall portion 12 b protrudes from the back surface 12 a of the battery lid 12.
  • the wall portion 12 b is formed in an annular shape along the outer edge of the battery lid 12.
  • the seal member 11 is provided so as to surround the outer periphery of the wall portion 12b.
  • An attachment portion 12 c is formed on the outer edge of the battery lid 12.
  • a claw portion (not shown) is formed on the back surface 12 a of the battery lid 12.
  • the battery lid 12 is fitted into the housing 13 by the attachment portion 12c and the claw portion.
  • the seal member 11 is compressed by the battery lid 12 and the housing 13. This structure prevents water from entering the battery 111 in the mobile phone 110.
  • a composite seal member in which the seal member 11 and the battery lid 12 are integrated may be used.
  • the composite seal member is formed by either molding the seal member 11 or the battery lid 12 and then inserting the molded product into a mold for molding the other of the seal member 11 or the battery lid 12 to perform insert molding. It is manufactured by doing. In this case, the process of attaching the seal member 11 to the battery lid 12 is omitted in the assembly work of the mobile phone 110.
  • the annular seal member 11 is provided on the outer periphery of the wall portion 12b protruding from the back surface 12a of the battery lid 12.
  • the annular seal member 14 is replaced with the battery lid. You may affix directly on the back surface 15a of 15.
  • An annular seal member 14 is affixed to the back surface 15 a of the battery lid 15. When the battery lid 15 is attached to the housing 16, the sealing member 14 is compressed by the battery lid 15 and the housing 16, and water intrusion into the battery 111 in the mobile phone 110 is prevented.
  • the composite sealing member is formed by either molding the sealing member 14 or the battery lid 15 and then inserting the molded product into a mold for molding the other of the sealing member 14 or the battery lid 15 to insert molding. It is manufactured by doing. In this case, in the assembling work of the mobile phone 110, the step of attaching the seal member 14 to the battery lid 15 is omitted.
  • Second Embodiment a second embodiment in which the sealing member 21 of the present invention is applied to a connector cover 22 of an electronic device (for example, a mobile phone) 210 will be described with reference to FIGS. 6 and 7. As shown in FIGS.
  • the mobile phone 210 is provided with a connector cover 22 as a “first member” that protects the connector 211.
  • the seal member 21 is provided inside the connector cover 22.
  • the connector 211 is a part that is connected to another electronic device via a cable or connected to a charger.
  • the mobile phone 210 includes a housing 23 as a “second member”. In the housing 23, a circuit board 212, a connector 211, and the like are accommodated.
  • the housing 23 is provided with an opening 23 a for exposing the connector 211.
  • the connector cover 22 includes a cover part 213 that covers the connector 211 and a connection part 214 that extends from the end of the cover part 213.
  • a fixing portion 215 that is fixed inside the housing 23 is provided at the end of the connection portion 214.
  • the connector cover 22 is formed of a thermoplastic elastomer. Since the connector cover 22 has flexibility, it can be easily bent.
  • the cover portion 213 is attached to the housing 23 through the fixing portion 215 so that the opening portion 23a can be opened and closed.
  • An annular protrusion 216 that protrudes toward the connector 211 is provided on the inner surface of the cover part 213.
  • the annular protrusion 216 is fitted along the inner wall of the opening 23a.
  • the connector cover 22 is provided with an annular seal member 21 so as to surround the outer periphery of the annular protrusion 216.
  • the sealing member 21 When the opening 23 a is closed by the connector cover 22, the sealing member 21 is compressed by the annular protrusion 216 and the inner wall of the opening 23 a, thereby preventing water from entering the connector 211 and the circuit board 212.
  • the annular seal member 21 is provided on the connector cover 22.
  • a sheet-like seal member 31 may be attached to the inner surface of the connector cover 32.
  • the connector cover 32 is provided with an annular protrusion 316 as in the second embodiment.
  • the seal member 31 is formed so as to cover the annular protrusion 316.
  • the seal member 41 is compressed by a lower case 42 as a “first member” and an upper case 43 as a “second member” constituting the case article. Seal between 43.
  • the composite seal member 45 is formed in a rectangular ring shape that coincides with the outer peripheral edges of the cases 42 and 43.
  • the seal member 41 has an annular raised portion 41a and a flat portion 41b.
  • the cross-sectional shape of the annular raised portion 41a is an ellipse.
  • the flat portion 41b is a portion formed thinner than the annular ridge 41a on the inner edge side of the annular ridge 41a.
  • the resin film 44 is integrally formed with the seal member 41.
  • the inner peripheral edge portion of the resin film 44 extends inward from the flat portion 41b.
  • the outer peripheral edge portion of the resin film 44 is embedded in the annular raised portion 41a.
  • the cross-sectional shape of the annular raised portion 41a may be a circle, a rounded rectangle, a rounded triangle, or the like.
  • the thickness of the resin film 44 is thinner than the thickness of the seal member 41.
  • a material of the resin film 44 for example, PE, PP, PET, PBT, PC, PEN, PI, PMMA and the like are used.
  • the thickness of the resin film 44 is, for example, 50 ⁇ m to 300 ⁇ m.
  • the resin film 44 may be inserted into a mold for molding the seal member 41, and the seal member 41 may be integrally formed with the resin film 44 by insert molding.
  • a resin film having excellent heat resistance such as PI, PEN, PET, PBT.
  • the resin film 44 is formed in a rectangular shape.
  • the corner portions of the resin film 44 are formed wider than the width of other portions.
  • One insertion hole 44 a is formed at each corner of the resin film 44.
  • the insertion hole 44a is formed to correspond to the attachment hole 42c of the lower case 42.
  • An attachment shaft (not shown) of the upper case 43 passes through the insertion hole 44 a of the resin film 44 and enters the attachment hole 42 c of the lower case 42. In this state, the upper and lower cases 43 and 42 are coupled to each other by fitting or screwing.
  • the lower case 42 has a groove 42a into which the annular ridge 41a is fitted.
  • the composite seal member 45 is attached to the lower case 42 by fitting the annular ridge 41a into the groove 42a.
  • the annular protruding portion 41a protrudes above the upper surface 42b of the lower case 42 in a state where the annular protruding portion 41a is mounted in the groove portion 42a.
  • the seal member 41 By joining the upper case 43 to the lower case 42 to which the composite seal member 45 is mounted, the seal member 41 is compressed by the lower case 42 and the upper case 43, and the space between the cases 42 and 43 is sealed. Intrusion of water into the case article is prevented.
  • the composite sealing member 45 is formed by integrating the sealing member 41 with the resin film 44.
  • the annular sealing member 46 is a lower case as a “first member”. 47 may be attached directly.
  • the seal member 46 is integrally formed with the lower case 47.
  • the seal member 46 is compressed by a lower case 47 constituting the case article and an upper case 48 as a second member to seal between the cases 47 and 48.
  • the seal member 46 is formed in a rectangular ring shape that coincides with the outer peripheral edges of the cases 47 and 48.
  • the cross-sectional shape of the annular raised portion 46a may be a circle, a rounded rectangle, a rounded triangle, or the like other than an ellipse.
  • the annular raised portion 46a protrudes above the upper surface 47b of the lower case 47 in a state where the annular raised portion 46a is mounted in the groove portion 47a.
  • the sealing component 61 is attached to the electronic device 610 so as to cover the wiring 612 exposed from the opening 611.
  • the sealing component 61 is made of a metal plate or the like.
  • a plate-like seal member 62 is fixed to the lower surface of the sealing component 61.
  • the sealing component 61 and the housing 63 are respectively formed with holes into which screws 64 for fixing the sealing component 61 and the housing 63 are inserted.
  • the sealing component 61 (first member) on which the seal member 62 is mounted to the housing 63 (second member) using a screw 64 or the like, the opening 611 and the wiring 612 of the housing 63 are connected. Sealing by the seal member 62 prevents water from entering the housing.
  • the seal member 41 is integrated with the resin film 44 to form the composite seal member 45, but the seal members 11, 14, 21, 31, and 62 in other embodiments are also integrated with the resin film.
  • a composite seal member may be formed.
  • first member and the second member may be integrated with the seal member.
  • first and second members integrated with the seal member may be formed of metal or resin.
  • first and second members may be integrated using a primer or an adhesive.
  • the first and second members are metal
  • the first and second members made of metal are inserted into a mold for molding the seal member, and the first and second members are integrated with the seal member by insert molding. be able to. That is, the first and second members are not deformed or discolored depending on the pressure or heat at the time of molding the seal member, so that a high-quality composite seal member can be manufactured.
  • the first and second members are metal, the rigidity of the seal member can be increased even if the first and second members are thin. Therefore, the composite seal member is easier to handle than the seal member alone.
  • the first and second members are resin
  • the first and second members can be integrated by bonding or fusing to the silicone gel molded body constituting the seal member.
  • the rigidity of the sealing member can be increased while suppressing the manufacturing cost. Therefore, the composite seal member is easier to handle than the seal member alone.
  • the seal member instead of the composite seal member 45 integrated with the resin film 44, the seal member may be a composite seal member integrated with a metal plate or a resin plate. Also with this configuration, the handleability of the seal member can be improved. Further, a metal plate or a resin plate integrated with the seal member may be a part of the first member or the second member, or may be joined to the first and second members. By doing so, even if it is difficult to attach the seal member because the shapes of the first and second members are complicated, it is possible to cope with it.
  • the sealing member of the present invention is compressed by the first member and the second member, and seals between the first member and the second member.
  • the seal member is made of a silicone gel molded body.
  • the silicone gel molded body has a characteristic that the compression set measured according to JIS K6262 (ISO815), which is a Japanese industrial standard, is 5% or less.
  • the compression set is a compression set measured at a compression rate in the range of 50% to 80% and left at 70 ° C. for 22 hours.
  • the numerical range of 50% to 80% compression rate is not meaningful. That is, it means that the compression set has a characteristic that the compression set is 5% or less even in the range of 50 to 80% where the compression amount is large.
  • the penetration of the silicone gel molded body is in the range of 60 to 130.
  • the penetration is a value measured under a 25 ° C. condition by a consistency test using a 1 ⁇ 4 cone according to JIS K2220 (ISO 2137) as defined in JIS K6249. It shows that a silicone gel molded object is so soft that a penetration is large.
  • As an index of softness (hardness) there is hardness defined by JIS K6253 (ISO7619) in addition to the above.
  • the hardness of the silicone gel molded body shows a value of almost 0 as an index according to type E defined by JIS K6253 (ISO7619).
  • the silicone gel molded body has a compression set of 5% or less, and the penetration is in the range of 60 to 130. Not. That is, it is meaningful to have both of the above characteristics instead of either one.
  • the compression set of the silicone gel molded body which is the seal member of the present invention is 5% or less, the seal member is compressed by the first member and the second member, and is in the direction opposite to the compression direction. It produces a strong elastic force and tries to return to its original shape. Further, since the penetration of the silicone gel molded product is in the range of 60 to 130, the sealing member is very soft and easily adheres to the first member and the second member. Does not cause deformation or damage. Further, since the compression set is 5% or less, the dimensional stability is excellent, and problems such as molding defects are hardly caused.
  • the penetration is less than 60, there is a possibility that the compression load for obtaining the compression rate (about 30%) necessary for forming the sealed structure may increase, and the first member or the second member may be deformed or damaged. May occur.
  • the penetration exceeds 130, it becomes difficult to handle the seal member, and it becomes difficult to use it at the opening and closing part.
  • the silicone gel molded body has a tensile fracture strength specified by JIS K6251 (ISO37) of 0.05 MPa to 0.15 MPa, and a tensile fracture elongation specified by JIS K6251 (ISO37) of 230 to 400%. It is in. Since it has such physical properties, the silicone gel molded body has shape retention and can be molded into a three-dimensional shape. For example, in a case where two sheets of the same sealing member are prepared and an electronic component such as an IC chip, a connector, or a flexible circuit board is sandwiched between them, the sealing member is not simply formed flat. And can be three-dimensionally formed in accordance with the shape of the electronic component.
  • the silicone gel molded body can have self-adhesiveness.
  • the seal member made of the silicone gel molded body can be easily attached to the first and second members.
  • the seal member can have self-adhesiveness unless a non-adhesive treatment is performed. If non-adhesive treatment is performed, a seal member having no self-adhesiveness can be obtained. Examples of the non-adhesion treatment include coating with a thin film, coating with a coating film, and coating with powder.
  • the silicone gel molded body is made of, for example, a two-component addition reaction curing type organopolysiloxane.
  • a two-component addition reaction curing type organopolysiloxane an organopolysiloxane having a vinyl group is used as the A material, and an organopolysiloxane having a Si—H group is used as the B material.
  • the silicone gel molded body is formed by filling an organopolysiloxane mixed with two liquids into a mold and then heating and curing. Furthermore, you may press with a press machine and shape
  • the shape and size of the sealing member made of the silicone gel molded body are set in accordance with the electronic device to which the sealing member is attached and the shape and size of the first member and the second member, respectively.
  • the waterproof performance of the seal member satisfies IPX8 in the protection class (IP code) defined in JIS C0920 (international standard IEC / EN60529), which is one of the standards regarding the waterproofness of electronic devices.
  • IPX8 which is a stricter condition than IPX7, even if the electronic device is submerged for a long time, water intrusion into the electronic device can be avoided.
  • the seal member of the present invention may be constituted by laminating at least two kinds of silicone gel molded bodies having different penetrations. For example, if a thin silicone gel molded body with a penetration of 60 is laminated on a silicone gel molded body with a penetration of 130, a high flexibility of the silicone gel molded body with a penetration of 130 is imparted to the seal member. Can do. Thereby, the ease of handling by the silicone gel molded body having a relatively hard penetration of 60 can be imparted to the seal member while maintaining the followability of the seal member to the first and second members. That is, by having different penetration and thickness for each of the laminated silicone gel molded bodies while having waterproof performance, the handleability of the sealing member alone can be improved.
  • An organopolysiloxane having a vinyl group (hereinafter referred to as “A material”) is used as the A material, and an organopolysiloxane having an Si—H group (hereinafter referred to as “B material”) is used as the B material.
  • a material an organopolysiloxane having a vinyl group
  • B material an organopolysiloxane having an Si—H group
  • a two-component addition reaction curable organopolysiloxane composition (hereinafter referred to as a “silicone composition”) prepared by blending parts B and B in parts by weight of Table 1. Then, using a vacuum defoamer, the two-component addition reaction type silicone composition was stirred and mixed so as not to generate bubbles.
  • silicone compositions manufactured by Asahi Kasei Wacker Silicone Co., Ltd., Toray Dow Corning Co., Ltd., and Momentive Co., Ltd. can be used.
  • Materials A and B were procured from the above manufacturers, and materials were selected and blended so as to obtain the desired penetration and compression set.
  • trade names 613A (A material) and 613B (B material) manufactured by Asahi Kasei Wacker Silicone Co., Ltd. can be used.
  • Samples 1 to 7 in Table 1 the same A material and B material were used, and only the blending ratio of A material and B material was changed.
  • sample 8 unlike materials A and B of samples 1 to 7, the material was selected so that the compression set exceeded 10%.
  • the prepared silicone composition was filled in a mold having a predetermined shape and cured under conditions of 110 ° C. for 10 minutes to produce a silicone gel molded body.
  • a silicone gel molded body having a shape conforming to the measurement standard was molded in advance, and the following items were measured.
  • compression set In accordance with JIS K6262 (ISO815), compression set was measured under the condition of being left at 70 ° C. for 22 hours for compression ratios of 50%, 60%, 70% and 80%, respectively. The results are shown in the “compression set” column of Table 1. The numbers in parentheses in the “compression set” column indicate the compression rate conditions.
  • the sealing member 51 was manufactured by forming into an annular disk shape. For each sample, an annular disk-shaped sealing member 51 having a thickness of 1.0 mm, an outer diameter of 39 mm, and an inner diameter of 21 mm (in other words, a width of 9 mm) was manufactured.
  • the sealing member 51 is disposed on the lower resin plate 52 as the “first member”, and the cobalt chloride paper P is disposed on the inner peripheral side of the sealing member 51.
  • Cobalt chloride paper P changes color when it contacts water.
  • An upper resin plate 53 as a “second member” is superposed on the lower resin plate 52, and bolts 54 are inserted into holes 52 a of the lower resin plate 52 and holes 53 a of the upper resin plate 53 via steel washers 55. Insert the nut 56 and screw the nut 56 onto the tip of the bolt 54.
  • the compression rate was set to 10%, 20%, and 30% by changing the thickness of the washer 55.
  • an acrylic plate is used as the resin plate.
  • the seal member of Sample 7 had a low penetration of 48, so the compression load at a compression rate of 30% was higher than other samples. Therefore, the load on the first and second members is increased, and the thinner the first and second members are as the device is made thinner, the higher the possibility of deformation and breakage.
  • the compression set was 17 to 20%, which was higher than that of Samples 2 to 6. For this reason, water immersion was confirmed in each waterproof test with a compression rate of 10% and 20%.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
  • Telephone Set Structure (AREA)
  • Gasket Seals (AREA)
  • Sealing Material Composition (AREA)
PCT/JP2012/062706 2011-05-24 2012-05-17 シール部材及び複合シール部材 WO2012161099A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280024581.1A CN103635725B (zh) 2011-05-24 2012-05-17 密封构件和复合密封构件
JP2013516333A JP6101911B2 (ja) 2011-05-24 2012-05-17 シール部材及び複合シール部材

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011116166 2011-05-24
JP2011-116166 2011-05-24

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WO2012161099A1 true WO2012161099A1 (ja) 2012-11-29

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JP (1) JP6101911B2 (zh)
CN (1) CN103635725B (zh)
WO (1) WO2012161099A1 (zh)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015080205A (ja) * 2013-10-17 2015-04-23 エルジー エレクトロニクス インコーポレイティド 移動端末機
JP2016531526A (ja) * 2013-09-10 2016-10-06 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ モバイル端末の防水プラグ
JP2017000340A (ja) * 2015-06-09 2017-01-05 イイダ産業株式会社 飾り付け具
JP2018120926A (ja) * 2017-01-24 2018-08-02 富士通株式会社 防水された装置
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JP2016531526A (ja) * 2013-09-10 2016-10-06 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ モバイル端末の防水プラグ
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JP2018120926A (ja) * 2017-01-24 2018-08-02 富士通株式会社 防水された装置
JP2018159020A (ja) * 2017-03-23 2018-10-11 株式会社オートネットワーク技術研究所 シール部材および防水コネクタ
WO2018173944A1 (ja) * 2017-03-23 2018-09-27 株式会社オートネットワーク技術研究所 シール部材および防水コネクタ
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JP2020202229A (ja) * 2019-06-07 2020-12-17 日東電工株式会社 通気部品
JP7378967B2 (ja) 2019-06-07 2023-11-14 日東電工株式会社 通気部品
JP7525843B2 (ja) 2020-04-24 2024-07-31 株式会社デンソー 自動車用防水ケース
WO2023218939A1 (ja) * 2022-05-10 2023-11-16 株式会社オートネットワーク技術研究所 端子台

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