WO2009090998A1 - フレキシブル基板用防水コネクタ - Google Patents
フレキシブル基板用防水コネクタ Download PDFInfo
- Publication number
- WO2009090998A1 WO2009090998A1 PCT/JP2009/050468 JP2009050468W WO2009090998A1 WO 2009090998 A1 WO2009090998 A1 WO 2009090998A1 JP 2009050468 W JP2009050468 W JP 2009050468W WO 2009090998 A1 WO2009090998 A1 WO 2009090998A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flexible substrate
- retainer
- housing
- hot melt
- waterproof connector
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
- H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
- H01R12/68—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals comprising deformable portions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6271—Latching means integral with the housing
- H01R13/6272—Latching means integral with the housing comprising a single latching arm
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/901—Connector hood or shell
- Y10S439/904—Multipart shell
- Y10S439/906—Longitudinally divided
Definitions
- the present invention relates to a connector used for electrical connection of a flexible substrate, and relates to a waterproof connector for a flexible substrate in which a connection portion is waterproofed.
- This application is based on Japanese Patent Application No. 2008-005663 filed in Japan on January 15, 2008, and Japanese Patent Application No. 2008-307445 filed in Japan on December 02, 2008. And these are incorporated herein by reference.
- the conductive pattern 112 of the terminal part of the flexible board 110 and the joint end part of the connection terminal 120 are joined by, for example, resistance welding (series welding or the like) to form a connection part. ing.
- This connection portion is sealed by the first resin mold portion 125.
- connection part is accommodated in the connection part accommodation hole 131 formed in the base end side of the connector fitting direction of the housing 130.
- the base end portion of the housing 130 is sealed by the second resin mold portion 126.
- the connection portion of the flexible substrate 110 on which the connection terminals 120 are formed is sealed with a first resin mold portion 125 made of, for example, a polyamide-based hot melt resin, and the connection portion of the housing 130 is sealed.
- the base end portion of the housing 130 is sealed by the second resin mold portion 126 made of the same hot melt resin.
- the waterproof connector 100 for a flexible substrate subjected to waterproof processing can be manufactured by a collective operation in the same equipment (for example, a hot melt filling device or the like). Therefore, an increase in processing costs can be prevented, and an increase in manufacturing cost of the waterproof connector for flexible substrates can be suppressed. Further, for example, it is not necessary to newly attach a wire seal or the like to the terminal portion of the flexible substrate to perform waterproofing. Therefore, material costs can also be reduced (see Patent Document 1). JP 2002-170627 A
- connection terminal 120 connected to the flexible substrate 110 when used due to the spring property of the connection terminal 120, if the connection portion is hardened by hot melt, the spring I lose my sex. As a result, there is a drawback that connection stability cannot be obtained. Further, the hot melt part (second resin mold part 126) is exposed to the outside of the housing 130. Therefore, an external force applied when the connector 100 is handled is first applied to the hot melt portion (second resin mold portion 126). As a result, the hot melt part is chipped or damaged, and the adhesiveness with the housing 130 is weakened, and there is a possibility that the fixing force and the waterproof property are lowered.
- an object of the present invention is to provide a waterproof connector for a flexible board in which the spring property of the connection terminal is ensured and the connector is waterproofed.
- the waterproof connector for a flexible board of the present invention includes: a flexible board having a conductor pattern formed on an insulating film; a connection terminal joined to the conductor pattern at a terminal portion of the flexible board; A housing housed inside; a retainer comprising a pair of upper and lower members, the retainer of which the front end portion holds the connection portion between the conductor pattern and the connection terminal, and surrounds the flexible substrate at the rear end portion; A hot melt that is disposed on a non-joined portion of the flexible substrate and an outer periphery of the retainer and that adheres and fixes the flexible substrate and the retainer; and a locking means disposed on the outer periphery of the retainer; and the housing A locking means disposed on the retainer, wherein the locking means and the locked means are locked to each other, and the retainer And said housing is secured.
- connection terminal is a female terminal
- the housing is a female housing
- fixing by hot melt can be performed in a state in which the spring property is secured at the joint portion between the terminal portion and the connection terminal of the flexible substrate. Moreover, since the force applied from the outside to the hot melt portion can be reduced, the fixing and waterproof performance can be maintained.
- FIG. 1 is an exploded perspective view showing a waterproof connector for flexible boards according to the first embodiment of the present invention.
- FIG. 2 is a perspective view of a state in which the flexible substrate and the female terminal are accommodated in the female housing in the same embodiment.
- FIG. 3 is a perspective view of a state in which the female housing shown in FIG. 2 is fitted to the male housing.
- FIG. 4 is a perspective view of the flexible substrate and the female terminal before the upper retainer is attached in the same embodiment.
- FIG. 5 is a perspective view of the same embodiment with the upper retainer attached.
- FIG. 6 is a perspective view of a half section of FIG.
- FIG. 7 is a cross-sectional view of a state in which the female housing is fitted to the male housing in the same embodiment.
- FIG. 8 is an enlarged perspective view of a female terminal and a retainer in the same embodiment.
- FIG. 9 is a perspective view seen from below in FIG.
- FIG. 10 is an enlarged perspective view of the female terminal connecting portion in the same embodiment.
- 11 is a cross-sectional view taken along line AA in FIG.
- FIG. 12 is an exploded perspective view showing a waterproof connector for flexible boards according to the second embodiment of the present invention.
- FIG. 13 is an exploded perspective view of the retainer of the same embodiment.
- FIG. 14 is a cross-sectional perspective view of the vicinity of the retainer of the same embodiment.
- FIG. 15 is a cross-sectional view schematically showing a conventional waterproof connector for flexible boards.
- FIG. 1 is an exploded perspective view schematically showing the waterproof connector 11 for a flexible substrate according to the first embodiment of the present invention.
- the waterproof connector 11 for a flexible substrate according to the present embodiment includes a flexible substrate 1 having a conductor pattern (not shown) formed on an insulating film; and is electrically joined to the conductor pattern at a terminal portion of the flexible substrate 1.
- the female housing 3 is fitted into the male housing 4.
- the connection terminal 2 is electrically connected to the male terminal 8 formed in the male housing 4.
- a connection portion ⁇ between the conductor pattern of the flexible substrate 1 and the joining terminal 2 is held by the tip portion of a retainer composed of a pair of upper and lower first members 5 and second members 6.
- the rear end portion of the retainer surrounds the flexible substrate 1. More specifically, the retainer is formed with a space in which the connection portion ⁇ where the flexible substrate 1 and the connection terminal 2 are joined is arranged in a state where the first member 5 and the second member 6 are overlapped. Yes.
- This space includes a first recess 54 formed in the first member 5 and a second recess 64 formed in the second member 6.
- the first member 5 and the second member 6 are formed with step portions 53 and 63, respectively. Immediately after this space (steps 53 and 63), the flexible substrate 1 is directly sandwiched.
- FIG. 4 is a perspective view showing the hot melt 7 filled in the outer periphery and inner periphery (internal space) of the retainer (the first member 5 and the second member 6).
- the insertion port (after the retainer) of the flexible substrate 1 is filled with hot melt 7a filled in the non-contact portions 55 and 65 and solidified on the inner periphery of the retainer (first member 5 and second member 6). Infiltration from the end portion side) to the connecting terminal 2 portion is prevented.
- the hot melt 7 covers at least a part of the outer periphery of the retainer and is arranged so as to fix the first member 5 and the second member 6.
- the flexible substrate 1 and the retainer are brought into close contact with each other and fixed.
- the first member 5 and the second member 6 are integrated and function as one retainer.
- the first member 5 and the second member 6 may be configured by connecting one side of the longitudinal direction with a hinge and connecting the first member 5 and the second member 6 as in the second embodiment described later. Good.
- the male housing 4 is provided with a male terminal 8 that fits into the connection terminal (female terminal) 2 and is electrically connected to the connection terminal.
- a housing seal 9 is disposed on the distal end side of the female housing 3 so as to seal a fitting portion between both the housings 3 and 4. Examples of the housing seal 9 include O-ring, sealing resin, and oil.
- a sealing member 10 is disposed on the outer periphery of the hot melt 7.
- the sealing member 10 is intended to seal the flexible substrate 1 between the female housing 3 and the outer periphery of the hot melt 7.
- the sealing member 10 include rubber packing, O-ring, sealing resin, and oil.
- a groove is formed on the surface of the sealing member 10 that contacts the female housing 3. Thereby, the adhesiveness of the sealing member 10 and the female housing 3 is improved.
- a ring-shaped convex portion is formed on the surface of the sealing member 10 that contacts the hot melt 7. Thereby, the shift
- FIG. 2 is a perspective view of the flexible substrate 1 accommodated in the female housing 3.
- Locking means (claw portions 5A and 6A) are formed on the outer circumferences of the retainers (first member 5 and second member 6), respectively.
- the housing (female housing) 3 is formed with locked means (locking holes 5B, 6B). The retainer (the first member 5 and the second member 6) and the housing 3 are fixed by locking these locking means (the claw portions 5A and 6A) and the locked means (the locking holes 5B and 6B). Has been.
- FIG. 3 is a perspective view showing a state in which the female housing 3 is fitted to the male housing 4.
- a spring piece 30 is formed on the outer periphery of the female housing 3.
- an engaging portion 40 is formed in the male housing 4. The spring piece 30 is locked to the engaging portion 40, and the female housing 3 and the male housing 4 are fixed.
- FIG. 7 is a cross-sectional view passing through the holes 50 and 60 in a state where the female housing 3 is fitted to the male housing 4. Respective claw portions 5A of the retainers (first member 5 and second member 6) are engaged with the locking holes 5B and 6B (see FIG. 1) of the female housing 3. Further, the spring piece 30 formed on the female housing 3 is engaged with the engaging portion 40 of the male housing 4. The flexible substrate 1 is bonded to the retainer (the first member 5 and the second member 6) via the hot melt 7, and the claw portions 5A and 6A are engaged with the locking holes 5B and 6B of the female housing 3, so that the hot melt 7 Is not arranged outside the female housing 3. Therefore, in FIG.
- connection portion ⁇ when a force (load on handling the connector) that pulls the flexible substrate 1 in the right-hand direction is applied, no load is directly applied to the connection portion ⁇ .
- a hot melt 7 is disposed on the flexible substrate 1 so as to surround the periphery thereof. Thereby, the adhesive area of the flexible substrate 1 and the hot melt 7 is increased, and the adhesive force is enhanced.
- the spring property of the connection portion ⁇ of the female terminal 2 with the flexible substrate 1 is ensured because this portion is not hardened by the hot melt 7.
- the water immersion path of the flexible board waterproof connector 11 of the present embodiment includes an interface between the flexible board 1 and the hot melt 7 (first water immersion path), and an interface between the sealing member 10 and the hot melt 7 (second water immersion path). , And the interface (third water immersion path) between the housing seal 9 and the female housing 3.
- the first water immersion path is blocked because the hot melt 7 is in close contact with the flexible substrate 1.
- the second flooding path is blocked by the compression of the sealing member 10.
- the third water immersion path is blocked by the compression of the housing seal 9.
- FIGS. 8 and 9 are partially enlarged perspective views showing the relationship between the female terminal 2 and the tip portion of the retainer (first member 5 and second member 6).
- the connection portion ⁇ between the female terminal 2 and the flexible substrate 1 is not hardened by the hot melt 7 as in the prior art. Therefore, a terminal support protrusion 50 ⁇ / b> A is formed on the first member 5 as a support when the female terminal 2 is inserted into the female housing 3. Both side bent end surfaces 2 ⁇ / b> A of the female terminal 2 are pushed by the tip wall between the pair of terminal support protrusions 50 ⁇ / b> A of the first member 5.
- the terminal support protrusion 50A prevents the female terminal 2 from tilting left and right.
- connection structure between the flexible substrate 1 and the female terminal 2 examples include those shown in FIGS. 10 and 11.
- the barrel 20 formed on the lower plate 2 ⁇ / b> B among the upper and lower plates on the distal end side of the female terminal 2 is inserted into the hole 1 ⁇ / b> A formed in the flexible substrate 1.
- the female terminal 2 is attached to the flexible substrate 1 by pulling the upper plate 2C toward the lower plate 2B side so that the barrel 20 is bent inward to hold the upper plate 2C.
- FIG. 11 is a cross-sectional view taken along the line AA in FIG.
- a protrusion 21 that is elongated in the width direction is disposed in the middle of the upper plate 2C. Further, at positions adjacent to the protrusions 21 of the upper plate 2C, protrusions 22 and 23 that are elongated in the longitudinal direction are arranged. The flexible substrate 1 is pressed against the lower plate 2B by these protrusions 21-23. On the other hand, the lower plate 2B is also provided with projections 24 to 26 corresponding to these projections 21 to 23. Similar to the upper plate 2C, an elongated protrusion 24 is formed in the middle of the lower plate 2B in the longitudinal direction of the lower plate 2B.
- protrusions 25 and 26 that are elongated in the width direction of the lower plate 2B are disposed.
- the protrusion height of the protrusion 24 located in the middle is higher than that of the other protrusions 25 and 26. Therefore, the protrusion 21 of the upper plate 2C presses the flexible substrate 1 with a spring force. Therefore, the flexible substrate 1 is deformed into a waveform by the protrusions 21 and 24, and the flexible substrate 1 is securely held.
- FIG. 12 is an exploded perspective view schematically showing the flexible board waterproof connector 12 according to the second embodiment of the present invention.
- the flexible board waterproof connector 12 of this embodiment is different from the flexible board waterproof connector 11 of the first embodiment in that a plurality of small protrusions 51, 61 are formed on the mutually opposing surfaces 5a, 6a of the rear end portion of the retainer. Is the point where is arranged.
- the retainer is formed by connecting one side of the first member 5 and the second member 6 in the longitudinal direction with the hinge 56 and connecting the first member 5 and the second member 6. Yes.
- FIG. 13 is a perspective view showing an open state of the retainer (first member 5 and second member 6) before the hinge 56 is bent.
- six small protrusions 51 and 61 are arranged on each of the mutually opposing surfaces 5a and 6a of the rear end portion of the retainer (first member 5 and second member 6).
- a row of a total of four small protrusions each provided with two holes 50 and 60 for filling the hot melt 7 and two of the four small protrusions provided side by side with the inner two.
- a retainer (first member 5 and second member 6) has a row of small protrusions.
- the small protrusions 51 disposed on the first member 5 and the small protrusions 61 disposed on the second member 6 are disposed to face each other.
- the small protrusions 51 and 61 sandwich the flexible substrate 1 from both sides.
- the flexible substrate 1 is distorted. May occur.
- the flexible substrate is clamped from both surfaces by providing the small protrusions 51 and 61.
- the flexible substrate 1 can be held horizontally.
- an abrupt temperature change or the like occurs, there is a possibility that the bonding interface between the hot melt 7 and the retainer is shifted due to the difference in the linear expansion coefficient between the hot melt 7 and the retainer.
- by disposing a plurality of small protrusions 51 and 61 it is possible to suppress the deviation of the adhesion interface. As a result, the adhesiveness between the hot melt 7 and the retainers 5 and 6 can be maintained. From the above, the waterproof effect for the flexible substrate of the present embodiment can be further improved in the waterproof effect as compared with the first embodiment.
- the first member 5 and the second member 6 are connected by a hinge 56 on one side surface in the longitudinal direction.
- Two engaging protrusions 52 are arranged on the first member 5.
- the second member 6 is provided with two engagement holes 62 that engage with the engagement protrusions 52.
- Two engaging projections 52 formed on the second member 6 are formed by two engaging projections 52 formed on the first member 5 when the first member 5 and the second member 6 are overlapped by bending the hinge 56 62 is inserted.
- both surfaces of the flexible substrate 1 between the engagement protrusions 52 are in close contact with the first member 5 and the second member 6, respectively, and the flexible substrate 1 is disposed between the two engagement protrusions 52.
- the space is sealed when there is no space (holes 50 and 60 and contacted portions 55 and 65) on both sides of the flexible substrate. Space) is formed. This space and the non-contact portions 55 and 65 are filled with the hot melt 7.
- the flexible substrate 1 is fixed by the retainers 5 and 6 via the hot melt 7 and passes through the small protrusions 51 and 61 in a state where the sealing member 10 is mounted on the outer periphery of the cooled and solidified hot melt 7. It is a perspective view of a half section. As described above, the flexible substrate 1 is horizontally held between the small protrusions 51 and 61.
- the waterproof connector for a flexible substrate of the present invention can be fixed by hot melt in a state in which the spring property is secured at the joint portion between the terminal portion of the flexible substrate and the connection terminal. Moreover, since the force applied from the outside to the hot melt portion can be reduced, the fixing and waterproof performance can be maintained.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
このフレキシブル基板用防水コネクタ100は、接続端子120が形成されたフレキシブル基板110を、例えばポリアミド系のホットメルト樹脂からなる第1の樹脂モールド部125により接続部を封止し、ハウジング130の接続部収容孔131に収容した後、同様のホットメルト樹脂からなる第2の樹脂モールド部126によりハウジング130の基端部を密封することで得られる。そのため、同一設備(例えば、ホットメルト充填装置等)での一括作業により、防水加工を施したフレキシブル基板用防水コネクタ100を製造できる。ゆえに、加工費の増加を防止し、フレキシブル基板用防水コネクタの製造コストの上昇を抑えられる。また、例えば新たにワイヤーシール等をフレキシブル基板の端末部に取付けて防水処理を施す必要がない。そのため、材料費も削減できる(特許文献1参照)。
(1)本発明のフレキシブル基板用防水コネクタは、絶縁フィルム上に導体パターンが形成されたフレキシブル基板と;前記フレキシブル基板の端末部にて前記導体パターンと接合された接続端子と;前記接続端子を内部に収容するハウジングと;上下一対の部材よりなり、その先端部分が前記導体パターンと前記接続端子との接続部を挾持し、かつその後端部分でフレキシブル基板を包囲するリテーナと;前記リテーナ内周のフレキシブル基板との非接合部分と、前記リテーナの外周とに配され、前記フレキシブル基板とリテーナとを密着・固定するホットメルトと;さらに前記リテーナの外周に配された係止手段と;前記ハウジングに配された被係止手段と;を備え、前記係止手段と前記被係止手段とが互いに係止されて、前記リテーナと前記ハウジングとが固定されている。
(2)前記リテーナの前記後端部分の互いに対向する面に、複数の小突起が配されているのが好ましい。
(3)前記接続部はバネ性を有し、前記リテーナの前記先端部分は、前記接続部のバネ性を阻害しないように、前記接続部を挾持しているのが好ましい。
(4)前記ホットメルトは、前記リテーナの前記後端部分の内部からはみでず、この後端部分で包囲された前記フレキシブル基板の周囲を取り囲むように配置されているのが好ましい。
(5)前記リテーナの外周に配された前記ホットメルトの外周に、更にシール部材を備えるのが好ましい。
(6)前記接続端子はメス端子であり、前記ハウジングはメスハウジングであり、このメスハウジングが嵌合されるオスハウジングを更に備えるのが好ましい。
2 接続端子(メス端子)
3 ハウジング(メスハウジング)
4 オスハウジング
5 第一部材
6 第二部材
7 ホットメルト
10 シーリング部材
11、12 フレキシブル基板用防水コネクタ
図1は、本発明の第1実施形態に関るフレキシブル基板用防水コネクタ11を、模式的に示した分解斜視図である。本実施形態のフレキシブル基板用防水コネクタ11は、絶縁フィルム上に導体パターン(図示せず)が形成されたフレキシブル基板1と;このフレキシブル基板1の端末部にて導体パターンと電気的に接合された接続端子(メス端子)2と;この接続端子(メス端子)2を内部に収容するハウジング(メスハウジング)3と;を備えている。また、このメスハウジング3は、オスハウジング4に嵌入される。この際、接続端子2は、オスハウジング4に形成されたオス端子8と電気的に接続される。
第一部材5に形成された孔50と、第二部材6に形成された孔60とから、リテーナの内部に液状のホットメルトを注入した際に、このスペース内にホットメルト7が浸入しないよう、第一部材5及び第二部材6には段差部53,63がそれぞれ形成されている。このスペースの直後(段差部53,63)にて、フレキシブル基板1は直接挾まれている。
図4は、リテーナ(第一部材5及び第二部材6)の外周と内周(内部空間)とに充填されたホットメルト7を示す斜視図である。図4に示すように、非接触部分55,65に充填され、リテーナ(第一部材5及び第二部材6)の内周で固化したホットメルト7aにより、フレキシブル基板1の挿入口(リテーナの後端部分側)から接続端子2部分への浸水が防止される。
第一部材5及び第二部材6は、後述する第二実施形態のように、その長手方向の一側面側をヒンジで連結し、第一部材5と第二部材6とをつなげたものとしてもよい。
メスハウジング3の先端側にはハウジングシール9が配されて、両ハウジング3、4の嵌合部分のシールを図っている。このハウジングシール9としては、例えば、オーリング、封止樹脂、オイル等が挙げられる。
シーリング部材10のメスハウジング3と接触する面には、溝が形成されている。これにより、シーリング部材10とメスハウジング3との密着性の向上を図っている。一方、シーリング部材10のホットメルト7と接触する面には、リング状の凸部が形成されている。これにより、シーリング部材10とホットメルト7とのずれを抑制し、密着性の向上を図っている。ゆえに、シーリング部材10とメスハウジング3との界面、及びシーリング部材10とホットメルト7との界面からの浸水を抑制できる。
フレキシブル基板1はリテーナ(第一部材5及び第二部材6)とホットメルト7を介して接着され、爪部5A、6Aはメスハウジング3の係止孔5B、6Bに係合され、ホットメルト7はメスハウジング3の外部には配置されていない。そのため、図7において、フレキシブル基板1を右手方向に引っ張る力(コネクタ取扱い上の負荷)が作用したとき、接続部αに直接的に負荷はかからないようになっている。
また、フレキシブル基板1に対して、その周囲を取り囲むようにホットメルト7が配されている。これにより、フレキシブル基板1とホットメルト7との接着面積を大きくし、接着力を高めている。
メス端子2の、フレキシブル基板1との接続部αのバネ性は、この部分をホットメルト7で固めていないために確保されている。
上板2Cの中間には、幅方向に細長い突起部21が配されている。また、上板2Cの突起部21に隣り合う位置には、長手方向に細長く形成された突起部22、23が配されている。これらの突起部21~23でフレキシブル基板1を下板2Bに押し付けている。
一方、下板2Bにも、これら突起部21~23に対応した突起部24~26が配されている。上板2Cと同様に、下板2Bの中間には、この下板2Bの長手方向に細長い突起部24が形成されている。また、下板2Bの突起部24の隣り合う位置には、下板2Bの幅方向に細長く形成された突起部25,26が配されている。突起部24~26のうち、中間に位置する突起部24の突出高さが、他の突起部25、26よりも高くなっている。そのため、上板2Cの突起部21がフレキシブル基板1をバネ力により押さえつけることになる。ゆえに、突起部21、24によりフレキシブル基板1は波形に変形され、フレキシブル基板1は確実に挾持される。
図12は、本発明の第2実施形態に係るフレキシブル基板用防水コネクタ12を模式的に示した分解斜視図である。本実施形態のフレキシブル基板用防水コネクタ12が、第1実施形態のフレキシブル基板用防水コネクタ11と異なる点は、リテーナの後端部分の互いに対向する面5a,6aに、複数の小突起51,61が配されている点である。また、本実施形態では、リテーナは、第一部材5及び第二部材6の長手方向の一側面側をヒンジ56で連結し、第一部材5と第二部材6とをつなげたものを用いている。
ホットメルト7を孔50,60から充填する際、あるいは第一部材5側の面と第二部材6側の面とでホットメルトの冷却・固化のスピード等が異なると、フレキシブル基板1に歪みが生じる虞がある。本実施形態では、小突起51,61を設けることで、フレキシブル基板が両面から挟持されている。そのため、ホットメルトを充填する際や、第一部材5側の面と第二部材6側の面とでホットメルト7の冷却・固化のスピードが異なったとしても、この小突起51,61により、フレキシブル基板1を水平に挟持できる。
また、急激な温度変化等が起きた場合、ホットメルト7とリテーナとの線膨張係数の違いにより、ホットメルト7とリテーナとの接着界面がずれる虞がある。本実施形態では、小突起51,61を複数で配置することにより、この接着界面のずれを抑制できる。その結果、ホットメルト7とリテーナ5,6との密着性を保持できる。
以上より、本実施形態のフレキシブル基板用防水コネクタでは、第1実施形態よりも更に、防水効果を高められる。
この際、係合突起52間のフレキシブル基板1の両面は、それぞれ第一部材5と第二部材6に密着し、フレキシブル基板1は、2つの係合突起52の間に配置されている。第一部材5と第二部材6の小突起51、61が存在するスペースでは、フレキシブル基板の両面側に密閉された空間(孔50、60と被接触部分55,65がないとしたときに密閉される空間)が形成される。この空間と、非接触部分55,65とにホットメルト7が充填される。
Claims (6)
- 絶縁フィルム上に導体パターンが形成されたフレキシブル基板と;
前記フレキシブル基板の端末部にて前記導体パターンと接合された接続端子と;
前記接続端子を内部に収容するハウジングと;
上下一対の部材よりなり、その先端部分が前記導体パターンと前記接続端子との接続部を挾持し、かつその後端部分で前記フレキシブル基板を包囲するリテーナと;
前記リテーナ内周の前記フレキシブル基板との非接合部分と、前記リテーナの外周とに配され、前記フレキシブル基板と前記リテーナとを密着・固定するホットメルトと;
前記リテーナの外周に配された係止手段と;
前記ハウジングに配された被係止手段と;
を備え、
前記係止手段と前記被係止手段とが互いに係止されて、前記リテーナと前記ハウジングとが固定されている
ことを特徴とするフレキシブル基板用防水コネクタ。 - 前記リテーナの前記後端部分の互いに対向する面に、複数の小突起が配されている
ことを特徴とする請求項1に記載のフレキシブル基板用防水コネクタ。 - 前記接続部はバネ性を有し、
前記リテーナの前記先端部分は、前記接続部のバネ性を阻害しないように、前記接続部を挾持している
ことを特徴とする請求項1に記載のフレキシブル基板用防水コネクタ。 - 前記ホットメルトは、前記リテーナの前記後端部分の内部からはみでず、この後端部分で包囲された前記フレキシブル基板の周囲を取り囲むように配置されている
ことを特徴とする請求項1に記載のフレキシブル基板用防水コネクタ。 - 前記リテーナの外周に配された前記ホットメルトの外周に、更にシール部材を備える
ことを特徴とする請求項1に記載のフレキシブル基板用防水コネクタ。 - 前記接続端子はメス端子であり、
前記ハウジングはメスハウジングであり、
このメスハウジングが嵌合されるオスハウジングを更に備える
ことを特徴とする請求項1に記載のフレキシブル基板用防水コネクタ。
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JP2009534786A JP4796187B2 (ja) | 2008-01-15 | 2009-01-15 | フレキシブル基板用防水コネクタ |
EP09701767A EP2234217A4 (en) | 2008-01-15 | 2009-01-15 | WATERTIGHT CONNECTOR FOR FLEXIBLE SUBSTRATE |
CN2009801020300A CN101919124B (zh) | 2008-01-15 | 2009-01-15 | 柔性基板用防水连接器 |
CA2712152A CA2712152C (en) | 2008-01-15 | 2009-01-15 | Waterproof connector for flexible substrate |
BRPI0907233-0A BRPI0907233A2 (pt) | 2008-01-15 | 2009-01-15 | conector a prova de água para substrato flexível |
US12/835,890 US7883359B2 (en) | 2008-01-15 | 2010-07-14 | Waterproof connector for flexible substrate |
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JP2008005663 | 2008-01-15 | ||
JP2008-005663 | 2008-01-15 | ||
JP2008307445 | 2008-12-02 | ||
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US12/835,890 Continuation US7883359B2 (en) | 2008-01-15 | 2010-07-14 | Waterproof connector for flexible substrate |
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WO2009090998A1 true WO2009090998A1 (ja) | 2009-07-23 |
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US (1) | US7883359B2 (ja) |
EP (1) | EP2234217A4 (ja) |
JP (2) | JP4796187B2 (ja) |
KR (1) | KR101098463B1 (ja) |
CN (1) | CN101919124B (ja) |
BR (1) | BRPI0907233A2 (ja) |
CA (1) | CA2712152C (ja) |
WO (1) | WO2009090998A1 (ja) |
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JP2011210741A (ja) | 2011-10-20 |
JPWO2009090998A1 (ja) | 2011-05-26 |
CN101919124B (zh) | 2013-03-27 |
CA2712152A1 (en) | 2009-07-23 |
JP5347000B2 (ja) | 2013-11-20 |
CN101919124A (zh) | 2010-12-15 |
JP4796187B2 (ja) | 2011-10-19 |
KR20100105668A (ko) | 2010-09-29 |
US7883359B2 (en) | 2011-02-08 |
US20100279541A1 (en) | 2010-11-04 |
KR101098463B1 (ko) | 2011-12-27 |
EP2234217A1 (en) | 2010-09-29 |
BRPI0907233A2 (pt) | 2020-09-15 |
EP2234217A4 (en) | 2011-06-29 |
CA2712152C (en) | 2012-10-23 |
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