WO2014103591A1 - 防水コネクタ - Google Patents
防水コネクタ Download PDFInfo
- Publication number
- WO2014103591A1 WO2014103591A1 PCT/JP2013/081739 JP2013081739W WO2014103591A1 WO 2014103591 A1 WO2014103591 A1 WO 2014103591A1 JP 2013081739 W JP2013081739 W JP 2013081739W WO 2014103591 A1 WO2014103591 A1 WO 2014103591A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waterproof
- housing
- housing holding
- shell
- holding portion
- 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
- 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
-
- 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
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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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
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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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
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
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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
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
- H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
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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
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/521—Sealing between contact members and housing, e.g. sealing insert
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
- H01R43/24—Assembling by moulding on contact members
Definitions
- the present invention relates to a waterproof connector, and more particularly to a waterproof connector in which conductive members such as shells and contacts are formed integrally with a housing made of an insulating resin.
- a ground terminal 4 exposed from the housing 3 is formed at the rear end portion of the shell 1.
- the shell 1 By connecting the ground terminal 4 to a ground pattern or the like of a board on which the connector is mounted, the shell 1 becomes a ground potential. As a result, the contact 2 is shielded.
- the shell 1 is integrally molded in the housing 3, the surface of the shell 1 is in close contact with the insulating resin forming the housing 3, and is grounded from the outside of the connector through the boundary between the housing 3 and the shell 1. Water is prevented from entering the terminal 4 side, that is, the board side on which the connector is mounted.
- the metal material forming the shell 1 and the resin material forming the housing 3 have different coefficients of thermal expansion.
- soldering work when mounting the connector on the circuit board of the electronic device, for example, When the connector is exposed to a high temperature environment by reflow mounting, the expansion amount of the shell 1 and the expansion amount of the housing 3 are different, and the insulating resin that is in close contact with the surface of the shell 1 may be peeled off from the surface of the shell 1. is there. Once peeling occurs, a gap is formed between the surface of the shell 1 and the housing 3, and even if the temperature drops to room temperature, there is a risk that water may enter the ground terminal 4 side through this gap. .
- the present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a waterproof connector capable of improving the waterproof property between a housing and a conductive member such as a shell and a contact.
- a waterproof connector according to the present invention is a waterproof connector that is mounted on a board and fitted with a mating connector, and includes a housing made of an insulating resin and at least one conductive member integrally formed with the housing.
- the conductive member is exposed from the housing and connected to the mating connector, connected to the mating connector, the board mounting portion exposed from the housing and attached to the board, and between the mating connector connecting part and the board mounting portion.
- a housing holding portion embedded in the housing, and a waterproof shape portion is formed on the surface of the housing holding portion for blocking water intrusion along the interface between the housing holding portion and the housing. It is what.
- the waterproof shape portion can be formed of at least one waterproof groove formed so as to separate the surface of the housing holding portion into the mating connector connecting portion side and the board mounting portion side.
- the shell waterproof groove is preferably formed so as to be closed around the housing holding portion.
- the waterproof groove preferably has a groove depth of 0.01 mm or more.
- the waterproof groove preferably has a cross-sectional shape of any one of a triangular shape, an arc shape, a quadrangular shape, and an inverted triangular shape.
- the waterproof groove is preferably formed on all surfaces of the housing holding portion that contacts the housing.
- the waterproof shape part can also have a plurality of waterproof grooves formed on one surface of the housing holding part.
- the waterproof groove has a triangular cross-sectional shape, and can be formed such that the center line from the opening to the bottom of the waterproof groove in the cross-sectional shape extends obliquely in the depth direction with respect to the surface of the housing holding portion.
- the waterproof groove preferably has a round groove bottom.
- the waterproof grooves are respectively formed on all surfaces of the housing holding portion that contacts the housing.
- the center lines of the plurality of waterproof grooves formed on the plurality of surfaces of the housing holding part may be inclined in the same direction with respect to the surfaces of the corresponding housing holding parts, or the housing holding parts
- the plurality of waterproof grooves formed on the plurality of surfaces may include waterproof grooves whose centerlines are inclined in different directions with respect to the surfaces of the corresponding housing holding portions.
- the waterproof shape part can also have a plurality of waterproof grooves formed on one surface of the housing holding part.
- the center lines of the plurality of waterproof grooves formed on one surface of the housing holding part may be inclined in the same direction with respect to the surface of the housing holding part.
- the plurality of waterproof grooves formed on one surface may include waterproof grooves whose centerlines are inclined in different directions with respect to the surface.
- the opening of the waterproof groove may be configured to extend on the surface of the housing holding part in a direction perpendicular to the central axis of the housing holding part or obliquely with respect to the central axis of the housing holding part.
- the waterproof shape part can also be formed from at least one waterproof protrusion formed so as to separate the surface of the housing holding part into the mating connector connecting part side and the board mounting part side.
- the waterproof protrusion is preferably formed so as to be closed around the housing holding portion.
- the waterproof protrusion preferably has a height difference of 0.01 mm or more. It is preferable that the waterproof protrusion has a cross-sectional shape of any one of a triangular shape, an arc shape, a quadrangular shape, and an inverted triangular shape. It is preferable that the waterproof protrusions are respectively formed on all surfaces of the housing holding portion that contacts the housing.
- the waterproof shape part can also have a plurality of waterproof protrusions formed on one surface of the housing holding part.
- the conductive member is made of a shell, the mating connector connecting portion is made of a fitting portion that fits with the mating connector, and the housing holding portion includes a shell constriction portion formed narrower than the fitting portion, and is waterproof.
- the portion can be configured to be formed on the surface of the shell constriction.
- the conductive member is made of a shell, the mating connector connecting part is a fitting part that fits into the mating connector, the housing holding part has a hollow shape, and the waterproof shape part is a housing holding part. It can also comprise so that it may each be formed in the outer peripheral surface and inner peripheral surface.
- the conductive member can be configured to be a contact, and the mating connector connecting portion can be configured to be a contact portion that contacts the contact of the mating connector.
- the housing holding part may include a contact narrowing part formed narrower than the contact part and the board connecting part, and the waterproof shape part may be formed on the surface of the contact narrowing part.
- the conductive member may include a shell and one or more contacts, and the waterproof shape portion may be formed on the shell and the one or more contacts, respectively.
- the waterproof shape portion for blocking water intrusion along the interface between the housing holding portion and the housing is formed on the surface of the housing holding portion of the conductive member embedded in the housing, It becomes possible to improve the waterproofness between the housing and the conductive member.
- Embodiment 1 shows a waterproof connector according to Embodiment 1 of the present invention, in which (A) is a perspective view obliquely upward and viewed from the front, (B) is a perspective view obliquely upward and from the rear, and (C) is diagonally downward and forward.
- the perspective view seen from (D) is the perspective view seen from diagonally downward and back.
- the shell used for the waterproof connector of Embodiment 1 is shown, (A) is the perspective view seen from diagonally upward and the front, (B) is the perspective view seen diagonally upward and from the back, (C) is diagonally downward and The perspective view seen from the front, (D) is the perspective view seen from diagonally downward and the back.
- FIG. 3 is a development view of a shell used in the waterproof connector according to Embodiment 1.
- FIG. 3 is a perspective view showing a contact used in the waterproof connector according to Embodiment 1.
- FIG. 3 is a perspective view showing a housing holding portion of a contact used in the waterproof connector of Embodiment 1.
- FIG. 1 is an exploded perspective view of a waterproof connector according to Embodiment 1.
- FIG. 1 It is a perspective view which shows the state which cut
- substrate is shown, (A) is the perspective view seen from diagonally upward and the front, (B) is the perspective view seen diagonally downward and the back.
- FIG. 6 is a plan view showing a shell used in the waterproof connector according to Embodiment 2.
- FIG. 6 is an exploded perspective view of a waterproof connector according to Embodiment 3.
- FIG. 6 is a perspective view showing a shell used in a waterproof connector according to Embodiment 3.
- FIG. It is a perspective view which shows the state which cut
- FIG. 10 is a partial cross-sectional view showing various waterproof protrusions used in a waterproof connector according to a modification of the fourth embodiment.
- FIG. 10 is a partial plan view showing a waterproof shape portion of a contact used in a waterproof connector according to a fifth embodiment. It is sectional drawing of the shell waterproofing shape part used for the waterproof connector which concerns on Embodiment 6.
- FIG. 10 is a partial enlarged cross-sectional view showing a waterproof groove used in a waterproof connector according to Embodiment 6.
- FIG. 10 is a partial enlarged cross-sectional view showing a waterproof groove used in a waterproof connector according to Modification 1 of Embodiment 6. It is a fragmentary sectional view which shows the waterproof shape part used for the waterproof connector which concerns on the modification 2 of Embodiment 6.
- FIG. It is a fragmentary sectional view which shows the waterproof shape part used for the waterproof connector which concerns on the modification 3 of Embodiment 6.
- FIG. It is a fragmentary sectional view which shows the waterproof shape part used for the waterproof connector which concerns on the modification 4 of Embodiment 6.
- It is a fragmentary top view which shows the waterproof shape part used for the waterproof connector which concerns on other embodiment.
- It is side surface sectional drawing which shows the structure of the conventional waterproof connector.
- Embodiments of the present invention will be described below with reference to the accompanying drawings.
- Embodiment 1 1A to 1D show the structure of a waterproof connector according to Embodiment 1 of the present invention.
- the waterproof connector includes a housing 10 having a substantially rectangular parallelepiped outer shape, a plurality of contacts 20 fixed to the housing 10, and a shell 30 fixed to the housing 10 and shielding the plurality of contacts 20.
- the housing 10 is made of an insulating resin, and the contacts 20 and the shell 30 are made of a conductive metal material.
- the shell 30 has a hollow fitting portion 31 that opens to the front surface 10 a side of the housing 10, and a space S for fitting with the mating connector is formed inside the fitting portion 31.
- a contact portion 21 disposed at the front end of each contact 20 is disposed in the space S of the fitting portion 31 of the shell 30.
- the board connecting portions 22 arranged at the rear ends of the respective contacts 20 are exposed to the outside of the housing 10 from the rear surface 10 b of the housing 10.
- the shell 30 has a pair of board mounting portions 32, and these board mounting portions 32 are exposed from the lower surface 10 c of the housing 10 to the outside of the housing 10.
- the fitting portion 31 of the shell 30 has a central axis C1 and is elongated in a direction perpendicular to the central axis C1. It has a cylindrical shape with a flat cross-sectional shape.
- the direction extending parallel to the central axis C1 from the front to the rear of the fitting portion 31 is the X direction
- the surface from which the upper surface 31a of the flat fitting portion 31 extends is the XY surface
- the upper surface of the fitting portion 31 A direction perpendicular to 31a and directed downward is referred to as a Z direction.
- the shell 30 has a housing holding portion 33 that connects between the fitting portion 31 and the pair of substrate mounting portions 32.
- the housing holding portion 33 is flat from the center of the upper rear end of the fitting portion 31 to the rear protruding portion 33a protruding in the X direction along the central axis C1 of the fitting portion 31, and from the rear end of the rear protruding portion 33a.
- a pair of arm portions 33b extending in both directions parallel to the upper surface 31a of the fitting portion 31 and perpendicular to the central axis C1, that is, in the Y direction and the ⁇ Y direction, respectively, and downward from the tips of both arm portions 33b, that is, in the Z direction.
- a pair of leg portions 33c extending to the center is included.
- substrate attaching part 32 is connected to the lower end of a pair of leg part 33c, respectively.
- the pair of board mounting portions 32 are formed to extend from the rear to the front of the fitting portion 31, that is, on the XY plane and in the ⁇ X direction.
- the rear projecting portion 33a, the pair of arm portions 33b, and the pair of leg portions 33c of the housing holding portion 33 all form a shell narrowed portion that is thinner than the fitting portion 31, and a housing having such a shell narrowed portion.
- the holding portion 33 is embedded in the housing 10 when the shell 30 is molded into the housing 10.
- a plurality of shell grooves 34 parallel to each other are formed as waterproof grooves on the outer peripheral surfaces of the pair of arm portions 33b.
- Each shell groove 34 is formed so as to surround and surround the periphery of the arm portion 33 b, and the surface of the housing holding portion 33 causes the fitting portion 31 side portion and the board attachment portion 32 to be closed by each shell groove 34. Separated into side parts.
- These shell grooves 34 form a shell waterproof shape portion for blocking water intrusion along the interface between the housing holding portion 33 and the housing 10 when the shell 30 is molded into the housing 10. is there.
- the shell 30 having such a configuration can be manufactured by cutting a conductive metal plate 35 into a shape as shown in FIG. 5 and then bending it with a press or the like.
- the band-shaped portion 35a is formed into a flat cylindrical shape to form the fitting portion 31, the rear protruding portion 33a protrudes from the central outer edge of the band-shaped portion 35a, and a pair of arm portions 33b are connected to the tips of the rear protruding portion 33a.
- the pair of leg portions 33c are connected to the tips of the pair of arm portions 33b, and the substrate attachment portion 32 is formed by the flat plate portions 35b connected to the tips of the pair of legs 33c.
- arms 33 b each having a shell groove 34 in the middle of a path from the band-shaped portion 35 a forming the fitting portion 31 to the pair of flat plate portions 35 b forming the substrate mounting portion 32. Is present.
- FIG. 6 shows the configuration of the contact 20.
- the contact 20 is formed of a rod-shaped member or a flat plate member, and a housing holding portion 23 is formed between the contact portion 21 and the board connecting portion 22.
- the housing holding portion 23 is a portion that is embedded in the housing 10 and fixed to the housing 10 when being molded into the housing 10 together with the shell 30.
- a plurality of contact grooves 24 parallel to each other are formed on the outer peripheral surface of the housing holding portion 23 as waterproof grooves.
- Each contact groove 24 is formed so as to surround and close the periphery of the housing holding portion 23, and by this contact groove 24, the surface of the contact 20 is a portion on the contact portion 21 side and a portion on the substrate connection portion 22 side. And are separated.
- These contact grooves 24 form a contact waterproof shape portion for blocking water intrusion along the interface between the housing holding portion 23 and the housing 10 when the contact 20 is molded into the housing 10. is there.
- FIG. 8 shows an exploded view of the waterproof connector.
- the inner surface of the fitting portion 31 of the shell 30 is exposed to the front end side of the housing 10, the housing holding portion 33 in which the shell groove 34 is formed is embedded in the housing 10, and the board mounting portion 32 is exposed from the lower surface 10 c of the housing 10.
- the contact portions 21 of the plurality of contacts 20 are exposed in the fitting portion 31 of the shell 30, the housing holding portion 23 is embedded in the housing 10, and the board connection portion 22 is exposed from the rear surface 10 b of the housing 10.
- the housing 10 is molded integrally with the shell 30 and the plurality of contacts 20.
- the plurality of contacts 20 and the shell 30 are set in a mold (not shown) so that the contact portion 21 of the contact 20 is located in the fitting portion 31 of the shell 30, and the mold is closed and melted in the mold.
- the housing 10 and the plurality of contacts 20 and the shell 30 are integrally formed by cooling, and a waterproof connector as shown in FIGS. 1A to 1D is manufactured. can do.
- FIG. 9 shows a state in which the waterproof connector according to the first embodiment is cut along the XY plane at the height of the pair of arms 33b of the shell 30.
- FIG. A housing holding portion 33 of the shell 30 is embedded in the housing 10, and a pair of arm portions 33 b is connected from the fitting portion 31 via the rearward protruding portion 33 a. Further, the inner surface of the fitting portion 31 is exposed without being covered by the housing 10. Since a plurality of shell grooves 34 are formed in the arm portion 33b so as to surround and surround the periphery of the arm portion 33b, as shown in FIG. 10, there are shells on both side edges of the cut surface of the arm portion 33b. The cross-sectional shape of the groove 34 appears.
- FIG. 11 shows a state where the waterproof connector is cut along the XZ plane at the position of the contact 20.
- the contact portion 21 of the contact 20 is exposed in the fitting portion 31 of the shell 30, the board connecting portion 22 is exposed to protrude rearward from the rear surface 10 b of the housing 10, and the housing holding portion 23 is embedded in the housing 10. .
- a cut surface of the arm portion 33 b of the shell 30 is shown above the housing holding portion 23 of the contact 20. Since a plurality of contact grooves 24 are formed in the housing holding portion 23 of the contact 20 so as to surround and close the periphery of the housing holding portion 23, as shown in FIG. The cross-sectional shape of the contact groove 24 appears on both side edges.
- the insulating resin constituting the housing 10 is in close contact with the surface of the housing holding portion 33 of the shell 30 and the housing holding portion 23 of the contact 20 embedded in the housing 10. .
- the housing holding portion 33 of the shell 30 embedded in the housing 10 has a plurality of arms 33b so as to surround and close the periphery of the arm portion 33b existing on the way from the fitting portion 31 to the board mounting portion 32.
- Shell grooves 34 are formed.
- the arm portion 33b in which the plurality of shell grooves 34 are formed constitutes a shell constriction portion that is thinner than the fitting portion 31, the amount of water that enters is limited by the narrowing of the water intrusion path.
- the shell groove 34 can effectively exhibit a waterproof function.
- a plurality of contact grooves 24 are formed in the housing holding portion 23 of the contact 20 embedded in the housing 10 so as to surround and close the periphery of the housing holding portion 23.
- the insulating resin of the housing 10 that is in close contact with the surface of the housing holding portion 23 of the contact 20 is peeled off from the housing holding portion 23 due to a so-called meantime fitting or the like, and the inside of the fitting portion 31 of the shell 30 Even if water enters from the exposed contact portion 21 along the interface between the housing holding portion 23 and the housing 10, the intruded water is blocked by the plurality of contact grooves 24 and exposed from the rear surface 10 b of the housing 10. It is possible to prevent the board connection part 22 from being reached. In this way, it is possible to improve the waterproofness between the housing 10 and the shell 30 and the contacts 20 and prevent water from entering the inside of the apparatus, that is, the substrate side on which the waterproof connector is mounted.
- the waterproof connector according to the first embodiment is mounted and used on a substrate 41 mounted in a housing 40 of an electronic device such as a mobile phone.
- An opening 42 corresponding to the fitting portion 31 of the shell 30 is formed in the housing 40, and a gap between the inner surface of the housing 40 and the front surface 10 a of the housing 10 at the periphery of the opening 42 is sealed with a gasket 43.
- the With such a configuration moisture outside the housing 40 causes the plurality of shell grooves 34 of the housing holding portion 33 of the shell 30 embedded in the housing 10 and the plurality of contact grooves 24 of the housing holding portion 23 of the contact 20.
- the shell 30 is prevented from entering the housing 40 from the fitting portion 31 and the gasket 43 is prevented from entering the housing 40 from between the housing 40 and the housing 10 to be waterproof. It becomes possible to fulfill the function.
- the board mounting portion 32 of the shell 30 exposed from the lower surface 10c of the housing 10 is used. While aligning with the ground pattern 44 on the substrate 41, the substrate connecting portions 22 of the plurality of contacts 20 exposed from the rear surface 10 b of the housing 10 are aligned with the wiring pattern 45 on the substrate 41. Next, by soldering the substrate attachment portion 32 of the shell 30 to the ground pattern 44 on the substrate 41 and soldering the substrate connection portions 22 of the plurality of contacts 20 to the wiring pattern 45 on the substrate 41, FIG. As shown, the waterproof connector is fixed on the substrate 41. Thereafter, as shown in FIGS.
- the substrate 41 is fixed in the housing 40, and the inner surface of the fitting portion 31 of the shell 30 is exposed through the opening 42 of the substrate 41, and the housing.
- the gasket 43 may be pushed between the inner surface of the body 40 and the front surface 10a of the housing 10.
- the shell groove 34 formed in the arm portion 33b and the contact groove 24 formed in the housing holding portion 23 of the contact 20 desirably have a height difference, that is, a depth of 0.01 mm or more.
- a height difference that is, a depth of 0.01 mm or more.
- the shell 30 has a pair of substrate mounting portions 32 exposed from the lower surface 10 c of the housing 10.
- the shell 30 may have only one substrate mounting portion 32 or three or more substrate mounting portions 32.
- one arm portion 33b is formed in the middle of the path from the fitting portion 31 to the substrate mounting portion 32, and the shell groove 34 is formed on the surface of the arm portion 33b.
- the shell 30 may be arranged so that any shell groove 34 exists in the middle of the path from the fitting portion 31 to each of the substrate mounting portions 32.
- the number of the arm portions 33b in which the shell grooves 34 are formed may be the same as the number of the board mounting portions 32 or may be smaller than the number of the board mounting portions 32.
- the fitting portion 31 of the shell 30 has a flat cylindrical shape that covers the entire circumference of the contact portions 21 of the plurality of contacts 20, but is not limited thereto, and the contacts of the plurality of contacts 20 are not limited thereto. Even if only a part of the portion 21 is covered, a shielding effect can be achieved depending on the usage of the waterproof connector. Furthermore, when the shell is used as a member for attaching the waterproof connector to the substrate 41 via the substrate attachment portion 32 without having to obtain a shielding effect, the shell covers the contact portions 21 of the plurality of contacts 20. It does not have to be.
- the plurality of shell grooves 34 are formed in the arm portion 33 b of the housing holding portion 33, but are not limited to the arm portion 33 b and are embedded in the housing 10. Therefore, it may be formed in the narrowed portion of the housing holding portion 33 arranged in the middle of the path from the fitting portion 31 to the board mounting portion 32.
- a plurality of shell grooves 54 can be formed on the surface of the rear protruding portion 53a protruding rearward from the rear end of the fitting portion 51.
- the shell 50 has the same configuration as that of the shell 30 used in the first embodiment except that a plurality of shell grooves 54 are formed in the rearward protruding portion 53a. That is, the housing holding part 53 is disposed between the fitting part 51 and the pair of board mounting parts 52, and the housing holding part 53 is connected to the rearward projecting part 53a and the rear end of the rearward projecting part 53a.
- tip of each leg part 53c is connected including the part 53b and a pair of leg part 53c connected to the front-end
- a plurality of shell grooves 54 are formed on the outer peripheral surface of the rear protrusion 53a.
- a plurality of shell grooves 54 may be formed on the surfaces of the pair of leg portions 53c instead of the rear projecting portion 53a. Even if it does in this way, the same waterproofing effect will be acquired.
- Embodiment 3 In the shells 30 and 50 used in the first and second embodiments, the plurality of shell grooves 34 and 54 are formed in the leg portion 33c and the rearward protruding portion 53a, which are narrow portions, respectively. It is not necessary to form in a part.
- FIG. 18 shows an exploded view of the waterproof connector according to the third embodiment. This waterproof connector uses a shell 60 that does not have a narrowed portion instead of the shell 30 in the waterproof connector of the first embodiment.
- the shell 60 has a hollow flat cylindrical fitting portion 61 and a hollow flat cylindrical housing holding portion 63 connected to the rear end side of the fitting portion 61.
- a pair of board mounting portions 62 are formed to protrude from the rear end of the housing holding portion 63. That is, one cylindrical body is divided into a front end portion and a rear end portion, and the front end portion is used as a fitting portion 61 and the rear end portion is used as a housing holding portion 63.
- the fitting portion 61 covers the periphery of the contact portion 21 disposed at the front ends of the plurality of contacts 20, and the inner surface portion is exposed from the housing 10.
- the housing holding portion 63 has the inner surface portion and the outer surface portion all within the housing 10. Embedded in.
- a plurality of shell grooves 64 parallel to each other are formed on the outer peripheral surface of the housing holding portion 63, and a plurality of shell grooves 65 parallel to each other are also formed on the inner peripheral surface of the housing holding portion 63.
- Each shell groove 64 is formed so as to surround and close the outer periphery of the housing holding portion 63
- each shell groove 65 is formed so as to surround and close the inner periphery of the housing holding portion 63.
- the shell grooves 64 and 65 allow the housing holding portion 63 and Water intrusion along the interface with the housing 10 can be blocked.
- FIG. 20 shows a state where the waterproof connector according to the third embodiment is cut along the XZ plane at the position of the board mounting portion 62 of the shell 60.
- the inner surface of the fitting portion 61 of the shell 60 is exposed without being covered by the housing 10, the housing holding portion 63 is embedded in the housing 10, and the board mounting portion 62 connected to the rear end of the housing holding portion 63 is the housing 10. It protrudes from the rear surface 10b and is exposed. Since the shell grooves 64 and 65 are formed on the outer peripheral surface and the inner peripheral surface of the housing holding portion 63, respectively, the shell grooves 64 and 65 are formed on both side edges of the cut surface of the housing holding portion 63 as shown in FIG. 65 cross-sectional shapes appear.
- FIG. 1 the state which cut
- the contact portion 21 of the contact 20 is exposed in the fitting portion 61 of the shell 60, the board connecting portion 22 is exposed to protrude rearward from the rear surface 10 b of the housing 10, and the housing holding portion 23 is embedded in the housing 10.
- a plurality of contact grooves 24 are formed in the housing holding portion 23 of the contact 20 so as to surround and close the periphery of the housing holding portion 23, as shown in FIG.
- the cross-sectional shape of the contact groove 24 appears on both side edges.
- Embodiment 4 The cross-sectional shapes of the shell grooves 34, 54, 64 and 65 used in the first to third embodiments are not particularly limited. For example, a triangular shape as shown in FIG. 24 (A), an arc shape as shown in FIG. 24 (B), a square shape as shown in FIG. 24 (C), and as shown in FIG. 24 (D). An excellent waterproof function can be exhibited even in a reverse triangular shape or a reverse tapered shape.
- the contact groove 24 formed in the housing holding portion 23 of the contact 20 can also be formed to have various cross-sectional shapes as shown in FIGS.
- a shell protrusion protruding from the surface of the housing holding portion can be used instead of the shell groove. If the surface of the housing holding part is separated into the fitting part side and the board mounting part side by the shell protrusion, water intrusion along the interface between the housing holding part and the housing is blocked in the same manner as the shell groove. It becomes possible.
- the shell protrusion include a triangular shape as shown in FIG. 25A, an arc shape as shown in FIG. 25B, a quadrangular shape as shown in FIG. 25C, and FIG. ) Having a cross section of an inverted triangle shape or an inverse tapered shape as shown in FIG.
- the waterproof contact portion formed on the surface of the housing holding portion of the contact has various cross-sectional shapes as shown in FIGS. 25A to 25D instead of the contact groove, and holds the housing. Even if the contact protrusion protruding from the surface of the part is used, the intrusion of water along the interface between the housing holding part and the housing can be blocked.
- the intrusion of water along the interface with the housing can be suppressed, but the formation of multiple shell protrusions provides a higher waterproof function. can do.
- the intrusion of water along the interface with the housing can be suppressed, but it is better to form a plurality of contact protrusions. Waterproof effect is obtained.
- the shell protrusion and the contact protrusion have a height difference or height of, for example, 0.01 mm or more.
- the grooves shown in FIGS. 24A to 24D and the protrusions shown in FIGS. 25A to 25D are, for example, mechanical processing such as laser processing, press processing, grinding processing, etching, or the like. It can be formed by using the chemical treatment.
- the shell grooves 34, 54, 64, and 65 are formed so as to surround the housing holding portions 33, 53, and 63. It is not always necessary to enclose the entire circumference of the housing holding portion, and a waterproof effect can be obtained even if it is formed only in a part along the circumference of the housing holding portion. However, it is possible to exhibit a more excellent waterproof function if it is formed so as to surround and close the housing holding portion.
- FIG. 26 shows a main part of the contact 70 used in the waterproof connector according to the fifth embodiment. Similar to the contact 20 shown in FIG. 6, the contact 70 has a housing holding portion 73 formed between the contact portion 71 and the board connecting portion 72, and the housing holding portion 73 is provided in the housing 10. Embedded. However, the housing holding portion 73 is formed with a contact narrowing portion 75 formed narrower than the contact portion 71 and the substrate connection portion 72, and a plurality of contact grooves 74 parallel to each other are formed on the outer peripheral surface of the contact narrowing portion 75. Has been.
- the contact groove 74 can effectively improve waterproofness.
- a contact protrusion having a shape as shown in FIGS. 25A to 25D may be formed on the contact constriction 75.
- waterproofing between the housing 10 and the contact 20 or 70 is performed by forming a contact groove 24 or 74 or a contact protrusion in the housing holding portion 23 or 73 embedded in the housing 10.
- a waterproof effect can be obtained by attaching a waterproof rubber to the contact and sealing between the housing and the contact, or sealing between the housing and the contact using a potting agent.
- the contact groove or contact protrusion is formed in the housing holding portion of the contact and integrally molded, the waterproof rubber attaching step and the potting agent application step are not required, and the cost can be reduced. It is avoided that it adheres to places other than a coating position and causes the quality of a product to fall.
- Embodiment 6 As shown in FIG. 27, the shell grooves 34, 54, 64, 65 and the contact grooves 24, 74 in the first to third embodiments and the fifth embodiment described above are not perpendicular to the surface J of the housing holding portion H.
- the waterproof groove G dug down in an oblique direction can be used.
- the center line of the waterproof groove G is defined by a straight line connecting the middle point M of both ends A and B of the opening of the waterproof groove G on the surface J of the housing holding part H and the bottom P of the waterproof groove G. If C is defined, the waterproof groove G is formed such that the center line C from the opening to the bottom in the cross-sectional shape extends obliquely in the depth direction with respect to the surface J of the housing holding part H.
- the groove depth D of the waterproof groove G the housing
- the groove depth D desirably has a value of 0.01 mm or more, for example.
- the thickness T2 of the portion where the waterproof groove G is formed is reduced than the thickness T1 of the portion where the waterproof groove G is not formed.
- the plate thickness T2 is increased.
- the degree of reduction can be small. That is, the waterproof groove G having the same groove depth can be formed while suppressing a reduction in the cross-sectional area of the housing holding portion H of the conductive member as viewed from the direction in which the current I flows. For this reason, it is possible to suppress an increase in temperature during operation by suppressing an increase in electrical resistance due to a decrease in cross-sectional area while securing a groove depth necessary for waterproofing.
- the waterproof groove G is dug down so that the center line C extending from the opening to the bottom in the cross-sectional shape extends obliquely in the depth direction, the groove depth necessary for waterproofing is secured.
- the reduction of the cross-sectional area viewed from the direction in which the current flows is suppressed, and the decrease in the rigidity of the shell and the contact due to the formation of the waterproof groove G can be suppressed.
- the connector can be assembled with good workability.
- Such a waterproof groove G can be formed by using, for example, machining such as laser processing, pressing, and grinding, or chemical treatment such as etching.
- the waterproof groove G shown in FIG. 28 has a sharply sharp groove bottom portion P.
- the waterproof groove G may have a groove bottom portion R rounded from a rounded curved surface.
- the waterproof groove G dug down in an oblique direction with respect to the surface J of the housing holding part H does not necessarily need to surround the entire circumference of the housing holding part H, and is only formed at a part along the circumference of the housing holding part H. But you can get the waterproof effect. However, it is possible to exhibit a more excellent waterproof function when the waterproof groove G is formed so as to surround and close the housing holding portion H.
- the waterproof grooves G are respectively formed on all surfaces of the housing holding portion H that contacts the housing. If comprised in this way, even if a water
- the waterproof groove G may be formed at the same position on either side of the housing holding portion H. However, as shown in FIG. The positions of the housing holding portions H can be shifted by the position shift amount d to be formed at different positions. In FIG. 27, the center line C of the waterproof groove G is inclined in the same direction on any surface of the housing holding portion H.
- FIG. it can also be formed so as to incline in different directions depending on the surface of the housing holding part H.
- the formation position of the waterproof groove G according to the surface of the housing holding part H or by changing the inclination direction of the center line C of the waterproof groove G according to the surface of the housing holding part H,
- the decrease in the cross-sectional areas of the shell and the contact as viewed from the direction in which the current flows is further suppressed, and the increase in the electrical resistance and the decrease in the rigidity of the shell and the contact due to the formation of the waterproof groove G can be further suppressed.
- the center lines C of the plurality of waterproof grooves G formed on one surface of the housing holding portion H are in the same direction. Although inclined, the present invention is not limited to this, and as shown in FIG. 32, the center line C includes a plurality of waterproof grooves G that are inclined in different directions on one surface of the housing holding portion H. Also good. In this way, by forming a plurality of waterproof grooves G dug down in different inclination directions on one surface of the housing holding portion H, the housing and the housing holding portion H are caused by so-called meantime fitting or the like. Even if stress is applied from any direction during this period, peeling between the insulating resin of the housing and the housing holding portion H becomes difficult to occur, and the waterproofness can be further improved.
- the opening of the waterproof groove is located on the surface of the housing holding part with respect to the central axis of the housing holding part.
- the present invention is not limited to this, and as shown in FIG. 33, the opening of the waterproof groove G is formed on the surface of the housing holding portion H with the housing holding portion H. You may form so that it may extend diagonally with respect to the central axis HC.
- the shell and the contact are formed integrally with the housing, and the waterproof grooves are formed in the housing holding portions of both the shell and the contact.
- the waterproof groove may be formed only in the housing holding portion of either the shell or the contact.
- a more excellent waterproof function can be exhibited by forming waterproof grooves on both the shell and the contact.
- a waterproof groove can be formed in the housing holding portion of one or more contacts of the connector having no shell.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
また、電子機器においては、防水機能に対する要求が高く、これに伴い、防水性を備えた防水コネクタの開発が進められている。
このような、電磁波に対するシールドと防水性を兼ね備えたコネクタが、例えば、特許文献1に開示されている。このコネクタは、図34に示されるように、筒形状の金属製のシェル1の内側に導電接続のためのコンタクト2を配置し、これらシェル1およびコンタクト2をインサート成形等により絶縁性樹脂からなるハウジング3内に一体にモールド成形した構造を有している。
また、シェル1がハウジング3内に一体にモールド成形されているため、シェル1の表面がハウジング3を形成する絶縁性樹脂と密着し、コネクタの外部からハウジング3とシェル1との境界部を通して接地端子4側、すなわちコネクタが搭載される基板側に水が浸入することが防止される。
また、コネクタに相手側コネクタを嵌合する際に、嵌合軸に対して斜め方向から無理矢理嵌合するような、いわゆる意地悪嵌合が行われて、ハウジング3とシェル1との間に大きな応力が作用することがある。この場合にも、ハウジング3の絶縁性樹脂がシェル1の表面から剥離して、コネクタの防水性が損なわれるおそれがある。
さらに、同様にして、ハウジング3の絶縁性樹脂がコンタクト2の表面から剥離することによっても、防水性が損なわれる事態となる。
この場合、好ましくは、シェル防水溝は、ハウジング保持部の周囲を囲って閉じるように形成される。
また、防水溝は、0.01mm以上の溝深さを有することが好ましい。
防水溝は、三角形状、円弧形状、四角形状および逆三角形状のいずれかの断面形状を有することが好ましい。
防水溝は、ハウジングに接触するハウジング保持部のすべての面にそれぞれ形成されていることが好ましい。
防水形状部は、ハウジング保持部の1つの面上に形成された複数の防水溝を有することもできる。
この場合、防水溝は、丸みのある溝底部を有することが好ましい。
また、防水溝は、ハウジングに接触するハウジング保持部のすべての面にそれぞれ形成されていることが好ましい。ここで、ハウジング保持部の複数の面に形成された複数の防水溝の中心線は、それぞれ対応するハウジング保持部の面に対して互いに同一方向に傾斜していてもよく、あるいは、ハウジング保持部の複数の面に形成された複数の防水溝は、対応するハウジング保持部の面に対して中心線が互いに異なる方向に傾斜する防水溝を含んでいてもよい。
防水形状部は、ハウジング保持部の1つの面上に形成された複数の防水溝を有することもできる。この場合、ハウジング保持部の1つの面上に形成された複数の防水溝の中心線は、それぞれハウジング保持部の面に対して互いに同一方向に傾斜していてもよく、あるいは、ハウジング保持部の1つの面上に形成された複数の防水溝は、前記の面に対して中心線が互いに異なる方向に傾斜する防水溝を含んでいてもよい。
防水溝の開口部は、ハウジング保持部の表面上において、ハウジング保持部の中心軸に対し垂直な方向、あるいは、ハウジング保持部の中心軸に対し斜めに延びるように構成することもできる。
この場合、好ましくは、防水突起は、ハウジング保持部の周囲を囲って閉じるように形成される。
また、防水突起は、0.01mm以上の高低差を有することが好ましい。
防水突起は、三角形状、円弧形状、四角形状および逆三角形状のいずれかの断面形状を有することが好ましい。
防水突起は、ハウジングに接触するハウジング保持部のすべての面にそれぞれ形成されていることが好ましい。
防水形状部は、ハウジング保持部の1つの面上に形成された複数の防水突起を有することもできる。
あるいは、導電部材は、シェルからなり、相手側コネクタ接続部は、相手側コネクタと嵌合する嵌合部からなり、ハウジング保持部は、中空の形状を有し、防水形状部は、ハウジング保持部の外周面および内周面にそれぞれ形成されるように構成することもできる。
また、導電部材は、コンタクトからなり、相手側コネクタ接続部は、相手側コネクタのコンタクトに接触する接点部からなるように構成することができる。
さらに、ハウジング保持部は、接点部および基板接続部よりも細く形成されたコンタクト狭窄部を含み、防水形状部は、コンタクト狭窄部の表面に形成されていてもよい。
また、導電部材として、シェルおよび1つ以上のコンタクトを含み、防水形状部が、シェルおよび1つ以上のコンタクトにそれぞれ形成されるように構成することもできる。
実施の形態1
図1(A)~(D)に、この発明の実施の形態1に係る防水コネクタの構成を示す。防水コネクタは、ほぼ直方体形状の外形を有するハウジング10と、ハウジング10に固定された複数のコンタクト20と、ハウジング10に固定され且つ複数のコンタクト20をシールドするためのシェル30を有している。ハウジング10は、絶縁性樹脂から形成され、コンタクト20およびシェル30は、導電性を有する金属材料から形成されている。
また、シェル30は、一対の基板取付部32を有し、これらの基板取付部32が、ハウジング10の下面10cからハウジング10の外部に露出している。
ハウジング保持部33の後方突出部33a、一対の腕部33bおよび一対の脚部33cは、いずれも嵌合部31よりも細いシェル狭窄部を形成しており、このようなシェル狭窄部を有するハウジング保持部33は、シェル30がハウジング10にモールド成形される際に、ハウジング10内に埋め込まれる。
図5の展開図から明らかなように、嵌合部31を形成する帯状部分35aから基板取付部32を形成する一対の平板部分35bに至る経路の途中に、それぞれシェル溝34を有する腕部33bが存在している。
このとき、コンタクト20の接点部21がシェル30の嵌合部31内に位置するように複数のコンタクト20とシェル30を図示しない金型内にセットし、金型を閉じて金型内に溶融した絶縁性樹脂材料を注入した後、冷却することで、ハウジング10と複数のコンタクト20およびシェル30とを一体成形して、図1(A)~(D)に示したような防水コネクタを製造することができる。
特に、複数のシェル溝34が形成されている腕部33bは、嵌合部31よりも細いシェル狭窄部を構成するため、水の浸入路が狭められて浸入する水の量が制限されており、シェル溝34により効果的に防水機能を発揮することができる。
このようにして、ハウジング10とシェル30およびコンタクト20との間の防水性を向上させて装置内部、すなわち防水コネクタが搭載される基板側に水が浸入することを防止することが可能となる。
このような構成により、筐体40の外部における水分は、ハウジング10内に埋め込まれているシェル30のハウジング保持部33の複数のシェル溝34とコンタクト20のハウジング保持部23の複数のコンタクト溝24によって、シェル30の嵌合部31からの筐体40内への浸入が阻止されると共に、ガスケット43によって筐体40とハウジング10との間からの筐体40内への浸入が阻止され、防水機能を果たすことが可能となる。
また、シェル30の腕部33bに複数のシェル溝34を形成する代わりに、1つのシェル溝34を形成しても、ハウジング10との界面に沿った水の浸入を抑制することはできるが、複数のシェル溝34を形成した方が、より高い防水機能を発揮することができる。同様に、コンタクト20のハウジング保持部23に複数のコンタクト溝24を形成する代わりに、1つのコンタクト溝24を形成しても、ハウジング10との界面に沿った水の浸入を抑制することはできるが、複数のコンタクト溝24を形成した方が、より優れた防水効果が得られる。
なお、シェル30の嵌合部31は、複数のコンタクト20の接点部21の全周を覆うような扁平な筒形状を有していたが、これに限るものではなく、複数のコンタクト20の接点部21の一部のみを覆うものであっても、防水コネクタの使用状況によっては、シールド効果を奏することができる。さらに、シールド効果を得る必要がなく、基板取付部32を介して防水コネクタを基板41に取り付けるためのものとしてシェルを使用する場合には、シェルは、複数のコンタクト20の接点部21を覆っていなくてもよい。
上記の実施の形態1で用いられたシェル30では、複数のシェル溝34が、ハウジング保持部33の腕部33bに形成されていたが、腕部33bに限るものではなく、ハウジング10内に埋め込まれて嵌合部31から基板取付部32に至る経路の途中に配置されるハウジング保持部33の狭窄部に形成されていればよい。
同様にして、後方突出部53aの代わりに、一対の脚部53cの表面にそれぞれ複数のシェル溝54を形成してもよい。このようにしても、同様の防水効果が得られることとなる。
上記の実施の形態1および2で用いられたシェル30および50では、複数のシェル溝34および54が、狭窄部である脚部33cおよび後方突出部53aにそれぞれ形成されていたが、必ずしも、狭窄部に形成しなくてもよい。
図18に、実施の形態3に係る防水コネクタの分解図を示す。この防水コネクタは、実施の形態1の防水コネクタにおいて、シェル30の代わりに、狭窄部を有しないシェル60を用いたものである。
嵌合部61は、複数のコンタクト20の前端に配置された接点部21の周囲を覆いながら、内面部分がハウジング10から露出し、ハウジング保持部63は、内面部分および外面部分がすべてハウジング10内に埋め込まれる。
シェル60の表面に沿って嵌合部61から双方の基板取付部62に至るには、シェル溝64あるいはシェル溝65を越える必要があり、これらのシェル溝64および65により、ハウジング保持部63とハウジング10との界面に沿った水の浸入を遮断することが可能となる。
このように、中空のハウジング保持部63を有するシェル60を用いても、ハウジング10とシェル60およびコンタクト20との間に優れた防水効果が得られる。
上記の実施の形態1~3で用いられたシェル溝34、54、64および65の断面形状は特に限定されるものではない。例えば、図24(A)に示されるような三角形状、図24(B)に示されるような円弧形状、図24(C)に示されるような四角形状、図24(D)に示されるような逆三角形状または逆テーパ形状としても優れた防水機能を発揮させることができる。
同様に、コンタクト20のハウジング保持部23に形成されるコンタクト溝24も、図24(A)~(D)に示されるような各種の断面形状を有するように形成することができる。
シェル突起としては、例えば、図25(A)に示されるような三角形状、図25(B)に示されるような円弧形状、図25(C)に示されるような四角形状、図25(D)に示されるような逆三角形状または逆テーパ形状の断面を有するものを使用することができる。
ハウジングとの界面に沿った水の浸入を遮断するために、シェル突起およびコンタクト突起は、例えば0.01mm以上の高低差すなわち高さを有することが望ましい。
なお、図24(A)~(D)に示した溝および図25(A)~(D)に示した突起は、例えば、レーザ加工、プレス加工、研削加工等の機械加工、または、エッチング等の化学処理を用いることによって形成することができる。
図26に、実施の形態5に係る防水コネクタに用いられたコンタクト70の要部を示す。コンタクト70は、図6に示したコンタクト20と同様に、接点部71と基板接続部72との間に形成されたハウジング保持部73を有しており、このハウジング保持部73がハウジング10内に埋め込まれる。ただし、ハウジング保持部73には、接点部71および基板接続部72よりも細く形成されたコンタクト狭窄部75が形成され、コンタクト狭窄部75の外周面に、互いに平行な複数のコンタクト溝74が形成されている。
このように、コンタクト溝74を、接点部71および基板接続部72よりも細いコンタクト狭窄部75の表面に形成することで、コンタクト70の表面に沿った水の浸入路が狭められて浸入する水の量が制限されるため、コンタクト溝74により効果的に防水性を向上させることができる。
なお、コンタクト溝74の代わりに、図25(A)~(D)に示したような形状のコンタクト突起をコンタクト狭窄部75に形成してもよい。
ただし、コンタクトのハウジング保持部にコンタクト溝あるいはコンタクト突起を形成して一体成形を行えば、防水ゴムの取り付け工程、ポッティング剤の塗布工程が不要となり、コスト削減を図ることができると共に、ポッティング剤が塗布位置以外の箇所に付着して製品の品質低下を招くことが回避される。
上記の実施の形態1~3および5におけるシェル溝34、54、64、65およびコンタクト溝24、74として、図27に示されるように、ハウジング保持部Hの表面Jに対して垂直方向ではなく、斜め方向に掘り下げられた防水溝Gを用いることができる。図28に示されるように、ハウジング保持部Hの表面Jにおける防水溝Gの開口の両端部AおよびBの中点Mと、防水溝Gの底部Pとを結ぶ直線により防水溝Gの中心線Cを定義するものとすると、断面形状における開口部から底部に至る中心線Cがハウジング保持部Hの表面Jに対して深さ方向に斜めに延びるように、防水溝Gが形成されている。ここで、防水溝Gの開口の両端部AおよびBの中点Mと防水溝Gの底部Pからなる線分MPの長さを、防水溝Gの溝深さDと呼ぶことにすると、ハウジング保持部Hとハウジング保持部Hを覆うハウジングとの界面に沿った水の浸入を遮断するために、溝深さDは、例えば0.01mm以上の値を有することが望ましい。
このような防水溝Gは、例えば、レーザ加工、プレス加工、研削加工等の機械加工、または、エッチング等の化学処理を用いることによって形成することができる。
ハウジング保持部Hの表面Jに対して斜め方向に掘り下げられた防水溝Gは、必ずしもハウジング保持部Hの全周を囲う必要はなく、ハウジング保持部Hの周に沿った一部分に形成されるだけでも防水の効果を得ることができる。ただし、ハウジング保持部Hの周囲を囲って閉じるように防水溝Gを形成した方が、より優れた防水機能を発揮することが可能となる。
この場合、図27に示したように、防水溝Gが、ハウジング保持部Hのいずれの面においても互いに同じ位置に形成されていてもよいが、図30に示されるように、防水溝Gを、ハウジング保持部Hの面によって位置ずれ量dだけ位置をずらして、互いに異なる位置に形成することもできる。また、図27では、防水溝Gの中心線Cが、ハウジング保持部Hのいずれの面においても互いに同一方向に傾斜していたが、図31に示されるように、防水溝Gの中心線Cが、ハウジング保持部Hの面によって異なる方向に傾斜するように形成することもできる。
このように、ハウジング保持部Hの面に応じて防水溝Gの形成位置をずらす、あるいは、ハウジング保持部Hの面に応じて防水溝Gの中心線Cの傾斜の向きを異ならせることにより、電流が流れる方向から見たシェルおよびコンタクトの断面積の減少がさらに抑制され、防水溝Gの形成によるシェルおよびコンタクトの電気抵抗の増大および剛性の低下をさらに抑えることが可能となる。
このように、ハウジング保持部Hの1つの面上に、互いに異なる傾斜方向に掘り下げられた複数の防水溝Gを形成することにより、いわゆる意地悪嵌合等に起因して、ハウジングとハウジング保持部Hの間にいずれの方向から応力が加わっても、ハウジングの絶縁性樹脂とハウジング保持部Hとの間に剥離が発生しにくくなり、防水性をさらに向上させることができる。
また、シェルを有しないコネクタの1つ以上のコンタクトのハウジング保持部に防水溝を形成することもできる。
Claims (28)
- 基板上に搭載されて相手側コネクタと嵌め合わされる防水コネクタであって、
絶縁性樹脂からなるハウジングと、
前記ハウジングに一体に成形された少なくとも1つの導電部材とを備え、
前記導電部材は、
前記ハウジングから露出して前記相手側コネクタと接続される相手側コネクタ接続部と、
前記ハウジングから露出して前記基板に取り付けられる基板取付部と、
前記相手側コネクタ接続部と前記基板取付部との間を接続し且つ前記ハウジング内に埋め込まれるハウジング保持部とを有し、
前記ハウジング保持部の表面に、前記ハウジング保持部と前記ハウジングとの界面に沿った水の浸入を遮断するための防水形状部が形成されていることを特徴とする防水コネクタ。 - 前記防水形状部は、前記ハウジング保持部の表面を前記相手側コネクタ接続部の側と前記基板取付部の側とに分離するように形成された少なくとも1つの防水溝からなる請求項1に記載の防水コネクタ。
- 前記防水溝は、前記ハウジング保持部の周囲を囲って閉じるように形成されている請求項2に記載の防水コネクタ。
- 前記防水溝は、0.01mm以上の溝深さを有する請求項2または3に記載の防水コネクタ。
- 前記防水溝は、三角形状、円弧形状、四角形状および逆三角形状のいずれかの断面形状を有する請求項2~4のいずれか一項に記載の防水コネクタ。
- 前記防水溝は、前記ハウジングに接触する前記ハウジング保持部のすべての面にそれぞれ形成されている請求項5に記載の防水コネクタ。
- 前記防水形状部は、前記ハウジング保持部の1つの面上に形成された複数の前記防水溝を有する請求項5または6に記載の防水コネクタ。
- 前記防水溝は、三角形状の断面形状を有し、断面形状における前記防水溝の開口部から底部に至る中心線が前記ハウジング保持部の表面に対して深さ方向に斜めに延びている請求項2~4のいずれか一項に記載の防水コネクタ。
- 前記防水溝は、丸みのある溝底部を有する請求項8に記載の防水コネクタ。
- 前記防水溝は、前記ハウジングに接触する前記ハウジング保持部のすべての面にそれぞれ形成されている請求項8または9に記載の防水コネクタ。
- 前記ハウジング保持部の複数の面に形成された複数の前記防水溝の前記中心線は、それぞれ対応する前記ハウジング保持部の面に対して互いに同一方向に傾斜している請求項10に記載の防水コネクタ。
- 前記ハウジング保持部の複数の面に形成された複数の前記防水溝は、対応する前記ハウジング保持部の面に対して前記中心線が互いに異なる方向に傾斜する前記防水溝を含んでいる請求項10に記載の防水コネクタ。
- 前記防水形状部は、前記ハウジング保持部の1つの面上に形成された複数の前記防水溝を有する請求項8~12のいずれか一項に記載の防水コネクタ。
- 前記ハウジング保持部の1つの面上に形成された前記複数の防水溝の前記中心線は、それぞれ前記ハウジング保持部の面に対して互いに同一方向に傾斜している請求項13に記載の防水コネクタ。
- 前記ハウジング保持部の1つの面上に形成された前記複数の防水溝は、前記面に対して前記中心線が互いに異なる方向に傾斜する前記防水溝を含んでいる請求項13に記載の防水コネクタ。
- 前記防水溝の開口部は、前記ハウジング保持部の表面上において、前記ハウジング保持部の中心軸に対し垂直な方向に延びている請求項5~15のいずれか一項に記載の防水コネクタ。
- 前記防水溝の開口部は、前記ハウジング保持部の表面上において、前記ハウジング保持部の中心軸に対し斜めに延びている請求項5~15のいずれか一項に記載の防水コネクタ。
- 前記防水形状部は、前記ハウジング保持部の表面を前記相手側コネクタ接続部の側と前記基板取付部の側とに分離するように形成された少なくとも1つの防水突起からなる請求項1に記載の防水コネクタ。
- 前記防水突起は、前記ハウジング保持部の周囲を囲って閉じるように形成されている請求項18に記載の防水コネクタ。
- 前記防水突起は、0.01mm以上の高低差を有する請求項18または19に記載の防水コネクタ。
- 前記防水突起は、三角形状、円弧形状、四角形状および逆三角形状のいずれかの断面形状を有する請求項18~20のいずれか一項に記載の防水コネクタ。
- 前記防水突起は、前記ハウジングに接触する前記ハウジング保持部のすべての面にそれぞれ形成されている請求項21に記載の防水コネクタ。
- 前記防水形状部は、前記ハウジング保持部の1つの面上に形成された複数の前記防水突起を有する請求項21または22に記載の防水コネクタ。
- 前記導電部材は、シェルからなり、
前記相手側コネクタ接続部は、相手側コネクタと嵌合する嵌合部からなり、
前記ハウジング保持部は、前記嵌合部よりも細く形成されたシェル狭窄部を含み、
前記防水形状部は、前記シェル狭窄部の表面に形成されている請求項1~23のいずれか一項に記載の防水コネクタ。 - 前記導電部材は、シェルからなり、
前記相手側コネクタ接続部は、相手側コネクタと嵌合する嵌合部からなり、
前記ハウジング保持部は、中空の形状を有し、
前記防水形状部は、前記ハウジング保持部の外周面および内周面にそれぞれ形成されている請求項1~23のいずれか一項に記載の防水コネクタ。 - 前記導電部材は、コンタクトからなり、
前記相手側コネクタ接続部は、前記相手側コネクタのコンタクトに接触する接点部からなる請求項1~23のいずれか一項に記載の防水コネクタ。 - 前記ハウジング保持部は、前記接点部および前記基板接続部よりも細く形成されたコンタクト狭窄部を含み、
前記防水形状部は、前記コンタクト狭窄部の表面に形成されている請求項26に記載の防水コネクタ。 - 前記導電部材として、シェルおよび1つ以上のコンタクトを含み、
前記防水形状部は、前記シェルおよび前記1つ以上のコンタクトにそれぞれ形成されている請求項1~23のいずれか一項に記載の防水コネクタ。
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- 2013-11-26 WO PCT/JP2013/081739 patent/WO2014103591A1/ja active Application Filing
- 2013-11-26 CN CN201380063112.5A patent/CN104838545B/zh active Active
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CN106716735A (zh) * | 2014-10-17 | 2017-05-24 | 日本航空电子工业株式会社 | 防水连接器 |
TWI607607B (zh) * | 2014-10-17 | 2017-12-01 | 日本航空電子工業股份有限公司 | 防水連接器 |
CN106688148A (zh) * | 2014-11-14 | 2017-05-17 | 日本航空电子工业株式会社 | 防水连接器 |
EP3220488A4 (en) * | 2014-11-14 | 2017-11-22 | Japan Aviation Electronics Industry, Ltd. | Waterproof connector |
CN106688148B (zh) * | 2014-11-14 | 2019-03-15 | 日本航空电子工业株式会社 | 防水连接器 |
EP3252886A4 (en) * | 2015-01-29 | 2018-01-03 | Japan Aviation Electronics Industry, Ltd. | Connector production method and connector |
US10116107B2 (en) | 2015-01-29 | 2018-10-30 | Japan Aviation Electronics Industry, Limited | Connector production method and connector |
CN106785649A (zh) * | 2016-12-23 | 2017-05-31 | 池州信安电子科技有限公司 | 防水手机充电插座 |
Also Published As
Publication number | Publication date |
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TW201724666A (zh) | 2017-07-01 |
US20150333435A1 (en) | 2015-11-19 |
CN104838545A (zh) | 2015-08-12 |
US9608359B2 (en) | 2017-03-28 |
FI126627B (en) | 2017-03-15 |
KR20150082454A (ko) | 2015-07-15 |
KR101673194B1 (ko) | 2016-11-07 |
CN104838545B (zh) | 2017-03-08 |
TWI590537B (zh) | 2017-07-01 |
TWI605645B (zh) | 2017-11-11 |
TW201436384A (zh) | 2014-09-16 |
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