WO2014203486A1 - 防水コネクタ及び電子機器 - Google Patents
防水コネクタ及び電子機器 Download PDFInfo
- Publication number
- WO2014203486A1 WO2014203486A1 PCT/JP2014/003006 JP2014003006W WO2014203486A1 WO 2014203486 A1 WO2014203486 A1 WO 2014203486A1 JP 2014003006 W JP2014003006 W JP 2014003006W WO 2014203486 A1 WO2014203486 A1 WO 2014203486A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shell
- waterproof connector
- sealing material
- support portion
- connector
- Prior art date
Links
- 239000003566 sealing material Substances 0.000 claims description 68
- 230000000149 penetrating effect Effects 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract description 24
- 229920005989 resin Polymers 0.000 abstract description 24
- 239000000463 material Substances 0.000 abstract description 21
- 238000013461 design Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 238000005452 bending Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 7
- 238000004512 die casting Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000005871 repellent Substances 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002940 repellent Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
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
- 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
- H01R13/46—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
-
- 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
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
-
- 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
-
- 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
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
-
- 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
-
- 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
- H01R13/6275—Latching arms not integral with the housing
-
- 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
- H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices
Definitions
- the present invention relates to a connector used for electrical connection of various electronic devices such as a multi-function mobile phone, a multi-function portable information terminal, and a portable music player, and more particularly to a waterproof connector and an electronic device having a waterproof function.
- Patent Document 1 there is a waterproof connector disclosed in Patent Document 1 as a waterproof connector for an electronic device having a waterproof function.
- a contact terminal is insert-molded in a resin housing, and the rear end of the shell is externally fitted to the front end of the resin housing and attached to the connection groove formed on the outer periphery of the resin housing.
- the seal material is inserted.
- a groove is provided on the outer periphery of the sealing material, and the protrusion of the bottom case and the protrusion of the top case in which the waterproof connector is housed are closely inserted into the groove to form a watertight structure.
- water that has entered the outside of the shell of the waterproof connector is waterproofed by a sealing material and a watertight structure.
- the waterproof connector has a longer length because the rear end portion of the shell is externally fitted to the front end portion of the resin housing and the sealing material is provided on the resin housing at a position behind the shell. Occupied area increases. Therefore, there is a problem that the internal layout of the multi-function mobile phone or the like is restricted, and it is difficult to reduce the size of the mobile phone or the like.
- the shell of the waterproof connector is formed by pressing a metal plate to form a plate-shaped member having a predetermined shape in the same manner as a shell of a normal connector. It is formed by joining, and has a joint seam over the entire length in the plug insertion direction. The shell having this seam is prone to breakage from the seam when the plug inserted into the connector is strongly squeezed or when a squeezing force is applied many times, resulting in inferior strength and durability. is there.
- the present invention has been proposed in view of the above problems, and it is possible to reduce the occupied area of the connector while ensuring waterproofness, increase the usable portion inside the electronic device, and more free layout of the electronic device.
- An object of the present invention is to provide a waterproof connector and an electronic device capable of realizing the design and reducing the size of the electronic device.
- Another object of the present invention is to provide a waterproof connector and an electronic device capable of dramatically increasing the strength and durability of the shell.
- the waterproof connector of the present invention includes a seamless substantially cylindrical shell, a resin-made support portion housed in a wall shape in the shell, contact terminals supported by the support portion, and an outer periphery of the shell. It is characterized by comprising a sealing material provided around. According to this configuration, the support portion that supports the contact terminal is built in the seamless shell, and the sealing material is provided around the outer periphery of the shell, so that the length of the connector can be shortened while ensuring waterproofness. it can. Furthermore, since it is not necessary to provide a resin housing on the outside of the shell to prevent water from entering from the seam, the thickness of the connector can be reduced by the thickness of the resin housing.
- the waterproof connector according to the present invention is characterized in that a stepped portion that contacts the sealing material is formed in a circumferential shape on the shell. According to this configuration, the seal material can be easily positioned and attached at a predetermined position on the outer periphery of the shell by the contact between the seal material and the stepped portion, and the mounting state of the seal material at the predetermined position can be stabilized. Can do.
- the waterproof connector according to the present invention is characterized in that a non-penetrating recess capable of engaging a hook of a plug with the shell is formed to bulge outward. According to this configuration, the hook of the plug inserted into the waterproof connector can be locked, and the insertion state of the plug into the waterproof connector can be stabilized with the required mounting strength. Moreover, the strength and durability of the shell can be further enhanced by making the non-penetrating recesses that do not have through holes in the hookable portions of the plugs.
- the waterproof connector according to the present invention is characterized in that at least a region in front of the front surface of the support portion of the shell is formed as a non-penetrating surface.
- the strength and durability of the shell can be further improved by forming at least the region in front of the front surface of the support portion of the shell as a non-penetrating surface without a penetrating portion.
- the non-penetrating surface eliminates the flow of water using the through-hole as a flow path when the through-hole is formed, prevents water from entering a portion that is difficult to dry, and plug insertion direction.
- the degree of freedom of the mounting position of the sealing material before and after the can be greatly improved.
- the waterproof connector according to the present invention is characterized in that a locking hole capable of locking a hook of a plug is formed in the shell, and the sealing material is provided around the outer periphery of the shell on the rear side of the locking hole.
- the structure for forming the locking hole in the shell is only required to form the locking hole at the location irrespective of other locations, so the degree of freedom of the shape is high and it is easy to adapt to customization.
- the sealing material is provided around the outer periphery of the shell on the rear side of the locking hole, so that water does not enter from the locking hole, and the sealing material is waterproofed without providing a resin housing outside the shell. Sex can be secured.
- the waterproof connector according to the present invention is characterized in that a concave receiving portion on the back side formed by the shell and the support portion is filled with a sealing material. According to this configuration, water can be reliably prevented from entering the circuit board side of the electronic device from the inside of the shell regardless of the interior state of the support portion in the shell.
- the waterproof connector according to the present invention is characterized in that the support portion is fitted in the shell in a watertight manner, and a contact portion that contacts the back surface of the support portion is provided at a rear portion of the shell. According to this configuration, the water-tight structure of the shell and the support portion can reliably prevent water from entering the circuit board side of the electronic device from the inside of the shell. Further, by bringing the contact portion into contact with the back surface of the support portion, it is possible to stabilize the fitting state of the support portion and to prevent it from coming off.
- the electronic device of the present invention is characterized in that the waterproof connector of the present invention is housed in a case, and the sealing material is pressed directly or indirectly on the case to form a watertight structure. According to this configuration, water can be reliably prevented from entering the circuit board side of the electronic device from between the waterproof connector and the case, and an electronic device having the effect of the waterproof connector of the present invention can be obtained.
- the present invention it is possible to reduce the occupied area of the connector while ensuring waterproofness, increase the usable portion inside the electronic device, realize a more flexible layout design of the electronic device, and reduce the size of the electronic device Can be achieved.
- the strength and durability of the shell can be dramatically increased.
- FIG. 6 is an enlarged sectional view taken along line AA in FIG. 5.
- FIG. 6 is an enlarged sectional view taken along line BB in FIG. 5.
- (A)-(d) is a conceptual explanatory drawing of the process of forming a shell by drawing and pressing a metal flat plate.
- FIG. 12 is an enlarged sectional view taken along line CC of FIG. 11.
- FIG. 12 is an enlarged sectional view taken along line DD of FIG. 11.
- A)-(e) is a conceptual explanatory drawing of the process of forming a shell by carrying out drawing press and cutting and bending to a metal flat plate. The conceptual explanatory view of the process of forming the shell in the modification of a 2nd embodiment by die-casting.
- the waterproof connector 1 according to the first embodiment of the present invention is used for portable electronic devices such as a multifunctional mobile phone, a multifunctional portable information terminal, and a portable music player, and is compliant with the micro-USB standard. This is a waterproof connector 1.
- the waterproof connector 1 includes a seamless substantially cylindrical shell 2, a resin-made support portion 3 that is housed in a wall shape in the shell 2, and a support portion. 3 is provided with a contact terminal 4 supported by 3 and a sealing material 5 provided around the outer periphery of the shell 2, and is mounted and mounted inside a case of the electronic device.
- the shell 2 is formed by, for example, drawing and pressing a metal flat plate, and is formed in a substantially rectangular tube shape without a seam.
- the shell 2 has a step portion in the plug insertion direction.
- a step portion 24 extending from the front portion 21 on the plug insertion side to the intermediate portion 22 having a thickness larger than the front portion 21 bulges outward on the upper surface of the shell 2.
- a stepped portion 25 that extends from the intermediate portion 22 to the rear portion 23 having a thickness and width larger than that of the intermediate portion 22 bulges outward on the peripheral surface of the shell 2 and is formed in a circumferential shape.
- a seal material 5 described later is brought into contact with the circumferential step 25 in a circumferential manner.
- Two non-penetrating recesses 26 are formed on the upper surface of the shell 2 so as to bulge outward and protrude forward from the stepped portion 24.
- the non-penetrating recess 26 is formed in a concave shape so that a claw-like hook of the plug can be locked when a plug such as a micro-USB plug is inserted into the shell 2.
- the non-penetrating recess 26 is formed by, for example, processing so as to bulge outward during a drawing press process when a metal flat plate is formed by drawing press processing.
- the sealing material 5 is formed of a soft resin such as an elastomer in a ring shape having a substantially square frame shape, and includes a main body 51 having a substantially square shape in cross section and a protrusion 52 having a substantially chevron shape in cross section protruding outward from the main body 51. .
- the sealing material 5 can be formed of an appropriate material having a waterproof function and can be sealed, and is formed of, for example, an O-ring or a water-repellent material in addition to those formed of a soft resin such as an elastomer. It is also possible.
- the sealing material 5 is fitted on the outer periphery of the intermediate portion 22 so that one side surface of the main body 51 is in contact with the outer surface of the step portion 25, and is fixedly fitted on the intermediate portion 22.
- the sealing material 5 is fitted on the outer periphery of the intermediate portion 22 having a planar peripheral surface.
- a circumferential fitting groove is formed in the intermediate portion 22, and the sealing material 5 is formed in the fitting groove. It is also possible to adopt a configuration in which the sealing material 5 is provided around by fitting the sealing material 5 by fitting a protruding line formed so as to protrude inward.
- the attachment position of the sealing material 5a in the front-rear direction of the shell 2a is any position in the front-rear direction. Is possible.
- reference numeral 111 denotes a plug insertion opening, which is provided on the side wall of the bottom case 11 in the illustrated example.
- the watertight structure may be formed so that the protrusion 52 fits into the groove portion of the bottom case 11 and the groove portion of the top case 12, and the watertight structure is formed by directly pressing the sealing material 5 against the case.
- the sealing material 5 is indirectly pressed against the case, such as abutting the sealing material 5 on the bottom case 11 or the top case 12 or both so as to be pressed against the seal receiving material such as rubber. It can also be formed.
- the rear portion 23 of the shell 2 protrudes rearward from the back surface of the main body 31 of the support portion 3, and a bond is applied to the concave receiving portion 61 on the back side formed by the protruding portion of the rear portion 23 and the back surface of the main body 31.
- the sealing material 62 is filled and solidified by pouring or the like. By forming the sealing material 62 in the receiving portion 62, for example, water can be more reliably prevented from entering the circuit board of the electronic device disposed on the back side of the support portion 3. In addition, in the interior of the support 3 in the shell 2, when the support 3 is fitted in the shell 2 in a watertight manner, the sealing material 62 may not be filled.
- the waterproof connector 1 according to the first embodiment can be manufactured by an appropriate method that can be manufactured. For example, a metal flat plate is drawn and pressed to form a stepped portion 24 that is seamless and substantially rectangular. It is preferable to form the shell 2 having the non-penetrating recess 26 that has 25 and bulges outward.
- the metal flat plate 201 is subjected to drawing press step by step to form the original shape of the front part 21, the intermediate part 22, and the rear part 23.
- the workpiece 202 and workpiece 203 are sequentially processed into shapes, and the shell 2 is punched out and penetrated through the opening for inserting the plug. Is obtained.
- the support portion 3 in which the contact terminal 4 is insert-molded is embedded in the shell 2 so as to be fitted into the rear portion 23, and the sealing material 5 is disposed on the outer periphery of the intermediate portion 22 so that the side portion is in contact with the stepped portion 25.
- the waterproof connector 1 is obtained by fitting.
- the sealing material 62 is filled and solidified in the concave receiving portion 61 on the back side formed by the protruding portion of the rear portion 23 and the back surface of the main body 31, and waterproofing treatment for water entering the shell 2 is performed.
- the support portion 3 that supports the contact terminal 4 is the waterproof connector 1 that is housed in the seamless shell 2.
- the length of the connector can be shortened while ensuring waterproofness.
- the thickness of the connector can be reduced by the thickness of the housing. Accordingly, it is possible to reduce the area occupied by the connector and increase the usable portion inside the electronic device, so that more flexible layout design of the electronic device can be realized and the electronic device can be downsized.
- the resin material is not required, and the manufacturing cost can be reduced.
- the contact between the sealing material 5 and the stepped portion 25 allows the sealing material 5 to be easily positioned and attached at a predetermined position on the outer periphery of the shell 2 and stabilizes the mounting state of the sealing material 5 at the predetermined position. be able to.
- the non-penetrating recess 26 of the shell 2 makes it possible to lock the hook of the plug inserted into the waterproof connector 1, and stabilize the insertion state of the plug into the waterproof connector 1 with the required mounting strength. Can do. Moreover, the strength and durability of the shell 2 can be further enhanced by providing the non-penetrating recess 26 that does not penetrate the hookable portion of the plug.
- the shell 2 by making the shell 2 a non-penetrating surface having no penetrating portion, the strength and durability of the shell 2 can be further enhanced. Moreover, by making it a non-penetrating surface, it is possible to prevent the flow of water from passing through the through hole when the through hole is formed, and to prevent water from entering a portion that is difficult to dry.
- the seal material 5 can be attached to any position before and after the plug insertion direction, and the degree of freedom of the attachment position of the seal material 5 can be greatly improved.
- the seamless substantially cylindrical shell 2 is formed by drawing and pressing a metal flat plate, the seamless shell 2 having high strength and high durability can be easily manufactured at low cost. Furthermore, when the non-penetrating recess 26 is formed to bulge outward in the drawing press processing, the seamless substantially cylindrical shape of the shell 2 and the non-penetrating recess 26 can be formed in the same process of the drawing press. Thus, it can be efficiently manufactured with high productivity. Further, by forming the shell 2 that does not form a through hole, it is possible to eliminate the need for drilling.
- the waterproof connector 1a according to the second embodiment of the present invention is also used for portable electronic devices such as a multi-function mobile phone, a multi-function portable information terminal, and a portable music player, and is waterproof according to the micro-USB standard. Connector 1a.
- the waterproof connector 1a of the second embodiment also includes a seamless substantially cylindrical shell 2a, a resin-made support portion 3a installed in a wall shape in the shell 2a, and a support portion.
- a contact terminal 4a supported by 3a and a sealing material 5a provided around the outer periphery of the shell 2a are provided, and are mounted and mounted inside a case of an electronic device.
- the shell 2a is formed, for example, by drawing and pressing a metal flat plate and forming a locking hole by cutting or bending, or by die-casting, and is formed in a substantially rectangular tube shape without a seam.
- the shell 2a has a stepped portion in the plug insertion direction.
- the stepped portion extends from the front portion 21a that is longer in the front-rear direction than the front portion 21 of the first embodiment to the intermediate portion 22a that is thicker than the front portion 21a.
- the 24a is formed to bulge outward on the upper surface of the shell 2a, and a step portion 25a extending from the intermediate portion 22a to the rear portion 23a having a thickness and width larger than that of the intermediate portion 22a bulges outward on the peripheral surface of the shell 2a. It is formed in a shape.
- the rear part 23a is formed shorter than the rear part 23 of the first embodiment.
- the sealing material 5a is circumferentially contacted with the circumferential step portion 25a.
- two elongated locking holes 27a are formed with the front-rear direction as the longitudinal direction, and at the front end of each locking hole 27a, there are cut and bent portions 271a that are inclined upward toward the rear.
- the cut and bent portion 271a is formed so as to cut and raise the shell 2a in the vicinity of the front end of the locking hole 27a.
- the support portion 3a is formed of an insulating hard resin and is provided in a wall shape so as to close the back side of the shell 2a, as in the first embodiment.
- the front surface 311a of the substantially rectangular parallelepiped main body 31a of the support portion 3a is disposed in the front portion 21a, and the stepped surface 312a on the upper surface of the main body 31a is in contact with the inner surface of the stepped portion 24a.
- the support portion 3a is fitted and internally fitted to the shell 2a so as to be watertight.
- a contact portion provided at the rear portion of the shell 2a is in contact with the back surface 313a of the support portion 3a provided at a predetermined position of the shell 2a.
- the upper surface of the rear portion 23a of the shell 2a is cut out to the inside.
- the bent portion 231a formed by bending is in contact with the left and right bent portions 231a in the illustrated example.
- the rear portion 23a is not provided with a contact portion such as a bent portion 231a, or the support portion 3a is fitted to the shell 2a in a watertight structure or not in a watertight structure as in the first embodiment. It is also possible to have a configuration in which a concave receiving portion formed by the rear portion 23a of the shell 2a and the back surface 313a of the support portion 3a is filled with the sealing material.
- the contact portion 4a is insert-molded and partially embedded in the support portion 3a, and the contact terminal 4a is attached to the support portion 3a so as to have a watertight structure by insert molding.
- the contact terminal 4a is arranged along one side of the protruding portion 32a protruding forward of the support portion 3a, is introduced into the shell 2a, and is exposed in the shell 2a so as to be in contact with the plug-side contact.
- the main body 31a is pulled out from behind and connected to a circuit board of an electronic device (not shown). Note that appropriate terminals of the plurality of contact terminals 4a can be used as power supply terminals and ground terminals.
- the sealing material 5a is formed of a soft resin such as an elastomer into a ring shape having a substantially square frame shape, and has a substantially square-shaped main body 51a and a substantially mountain-shaped cross-sectional view protruding outward from the main body 51a.
- the protrusion 52a is provided.
- the sealing material 5 can be formed of an appropriate material that has a waterproof function and can be sealed, and is formed of an O-ring or a water repellent in addition to a soft resin such as an elastomer. It is possible.
- the sealing material 5a is fitted on the outer periphery of the intermediate portion 22a so that one side surface of the main body 51a is in contact with the outer surface of the stepped portion 25a, and is fixedly placed on the intermediate portion 22a.
- a circumferential fitting groove is formed in the intermediate portion 22a as in the first embodiment.
- the sealing material 5a can be provided around the fitting groove by fitting the sealing material 5a, for example, by fitting a protrusion formed so as to protrude inside the sealing material 5a.
- the attachment position of the sealing material 5a in the front-rear direction of the shell 2a can be an arbitrary position as long as it is a position behind the locking hole 27a.
- the tip of the protrusion 52a is in contact with the bottom case 11 and the top case 12 having a plug insertion opening 111 that constitutes a case of the electronic device similar to the first embodiment, for example, and a watertight structure is formed. (See FIGS. 12 to 14).
- the watertight structure may be formed so that the protrusion 52a fits into the groove portion of the bottom case 11a and the groove portion of the top case 12a.
- the sealing material 5a is in the case such that the sealing material 5a contacts the sealing material such as rubber provided in the bottom case 11a or the top case 12a or both so that the sealing material 5a is pressed. It is also possible to be formed by being indirectly pressed.
- the waterproof connector 1a of the second embodiment can be manufactured by an appropriate method that can be manufactured.
- the metal plate 211 is subjected to a drawing press step by step, and the original shape of the front portion 21a.
- a workpiece 214 of a substantially cylindrical shell 2a that is seamless throughout is obtained.
- the cut portion 271a and the locking hole are formed by cutting to both sides at a position corresponding to the vicinity of the front end of the locking hole 27a and bending the portion between the cuts.
- 27a is formed in the vicinity of the front end of the locking hole 27a and punched at a position corresponding to the rear side of the vicinity of the front end of the locking hole 27a to form the rear area of the locking hole 27a.
- a locking hole 27a having a portion 271a is formed.
- the support portion 3a in which the contact terminal 4a is insert-molded is fitted into the intermediate portion 22a to form a watertight structure, and is embedded in the shell 2a. Further, a predetermined portion of the rear portion 23a is cut and bent. The bent portion 231a is formed, the bent portion 231a is brought into contact with the back surface 313a of the support portion 3a, and the sealing material 5a is fitted into the outer periphery of the intermediate portion 22a so that the side portion comes into contact with the stepped portion 25a.
- the connector 1a is obtained.
- FIG. 16 is a diagram for explaining die-casting of a modified shell 2m having a substantially cylindrical shape that is seamless and having cut and bent portions 271m and locking holes 27m.
- the shell 2m has the same basic structure as the shell 2a, and includes a front portion 21m, an intermediate portion 22m, a rear portion 23m, a step portion 25m, and a locking hole 271m formed on the upper surface of the front portion 21m.
- the step portion 24a is not formed, and the upper surface of the intermediate portion 22m is formed with a height corresponding to the substantially upper end of the cut and bent portion 271m.
- the core mold 301 from the rear side, the cavity mold 302 from the front side, and the slide core molds 303 and 304 from the peripheral side surface are slid and arranged for die casting, and a shell 2m having a predetermined shape is formed.
- the molds 301 to 304 are moved backward to take out the shell 2m.
- the upper surface of the intermediate portion 22m is formed at a position corresponding substantially to the upper end of the cut and bent portion 271m, the operation of placing the mold 301 and the mold 302 in advance during molding or retreat after molding. It is possible to prevent the shell 2m from interfering with the operation of being pulled out.
- the support portion 3a in which the contact terminal 4a is insert-molded is fitted into the intermediate portion 22m so as to form a watertight structure, and is further provided in the shell 2m.
- a bent portion is formed by cutting and bending the portion, and the bent portion is brought into contact with the back surface 313a of the support portion 3a, and the sealing material 5a is placed on the outer periphery of the intermediate portion 22m so that the side portion comes into contact with the stepped portion 25m.
- the waterproof connector 1a is obtained.
- the support portion 3a that supports the contact terminal 4a is the waterproof connector 1a that is housed in the seamless shells 2a and 2m, thereby ensuring waterproofness.
- the length of the connector can be shortened.
- the thickness of the connector can be reduced by the thickness of the housing. Accordingly, it is possible to reduce the area occupied by the connector and increase the usable portion inside the electronic device, so that more flexible layout design of the electronic device can be realized and the electronic device can be downsized.
- the sealing material 5a can be easily positioned and attached to a predetermined position on the outer periphery of the shells 2a and 2m by the contact between the sealing material 5a and the stepped portion 25a, and the attachment state of the sealing material 5a to the predetermined position can be adjusted. It can be stabilized.
- the structure in which the locking holes 27a and 27m having the cut and bent portions 271a and 271m are formed in the shells 2a and 2m is provided with the lock holes 27a and 27m having the cut and bent portions 271a and 271m at the corresponding places. Since it only needs to be formed, it has a high degree of freedom in shape and is easily adapted to customization, so it can flexibly respond to various shape requirements for the shells 2a and 2m while improving the strength and durability of the shells 2a and 2m. be able to. Furthermore, it is possible to reduce the size while improving the strength and durability of the shells 2a and 2m, such as by reducing the height in the thickness direction.
- the sealing material 5a is provided around the outer periphery of the shells 2a and 2m behind the locking holes 27a and 27m, so that water does not enter from the locking holes 27a and 27m, and the outside of the shells 2a and 2m. It is possible to ensure waterproofness by the sealing material 5a without providing a resin housing.
- the water-tight structure of the shells 2a and 2m and the support portion 3a fitted and fitted therein can surely prevent water from entering the circuit board side of the electronic device from the inside of the shells 2a and 2m. it can.
- the bent portion 231a and the like into contact with the back surface 313a of the support portion 3a, the fitting state of the support portion 3a can be stabilized and prevention of coming off can be achieved.
- the seamless shell 2a having high strength and high durability can be easily manufactured at low cost.
- the shape of the locking hole 27a and the cut and bent portion 271a formed by cutting and bending can be flexibly changed and the degree of freedom of the shape is large, so that customization can be more easily handled.
- the seamless shell 2m of the waterproof connector 1a when the shell 2m of the waterproof connector 1a is formed by die casting, the seamless shell 2m having high strength and high durability can be easily manufactured at low cost, and the seamless substantially cylindrical shape of the shell 2m can be produced.
- the shape and the locking hole 27a can be formed in the same process of die casting, and can be efficiently manufactured with high productivity.
- the shell in the present invention is not limited to the shells 2, 2a, and 2m of the above-described embodiment, and may be appropriate as long as it is a seamless substantially cylindrical shape.
- two non-penetrating recesses 26 are integrated.
- a shell that forms one elongated non-penetrating recess, a shell that does not have stepped portions 24, 24a or stepped portions 25, 25a, or both, and a fitting for fitting the sealing materials 5, 5a in the circumferential direction as described above It is possible to form a joint groove or a shell formed with a plurality of circumferential fitting strips protruding outward, or a shell without the non-penetrating recess 26 or the locking hole 27a.
- the locking holes provided in the shell in the present invention are appropriate as long as they are locking holes capable of locking the hooks of the plugs, and the locking holes 27a and 27m having the cut and bent portions 271a and 271m of the above embodiment. It is not limited to.
- the configuration of the abutting portion provided at the rear portion of the shell in the present invention is also appropriate as long as it can abut on the back surface of the supporting portion. It is not limited to the bending part 231a etc. of the said embodiment, such as providing as a contact part contact
- the shell 2 or the like that does not form a through hole is formed by a drawing press, it has a stepped peripheral surface without providing a part that protrudes outward from the peripheral surface or a part that is partially recessed inside.
- a shell is preferable because it can be formed only by a drawing press or without any processing steps other than the drawing press.
- the position where the sealing material in the present invention is provided around the outer periphery is not limited to the configuration provided around the outer periphery of the intermediate portions 22 and 22a of the above embodiment, and is appropriate.
- the present invention includes a seal material provided around the outer periphery of the shell at an arbitrary position where the waterproofness from the seal material to the back side can be secured.
- the sealing material 5 is provided on the outer periphery of an arbitrary position in the front-rear direction of the shell 2 while ensuring the waterproof property.
- the waterproof material is provided. It is possible to provide the sealing material 5 on the outer periphery at an arbitrary position on the rear side of the locking holes 27a, 27m of the shells 2a, 2m while securing the properties.
- the structure of the support portion in the present invention is appropriate as long as it can be housed in a wall shape in the shell, and preferably it can be fitted in the shell such as the shell 2, 2a, 2m, etc. It may be possible to improve the mounting strength and water tightness between the shell and the support portion.
- the process of forming shell 2, 2a, 2m, etc. can be performed in the appropriate process which can form a shell other than the said embodiment, for example, metal powder
- the shell of the present invention may be formed by injection molding (MIM) or a 3D printer.
- the present invention can be used as a waterproof connector used for electrical connection of various electronic devices such as a multi-function mobile phone, a multi-function mobile information terminal, and a portable music player.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
この構成によれば、コンタクト端子を支持する支持部をシームレスのシェルに内装し、そのシェルの外周にシール材を周設することにより、防水性を確保しつつコネクタの長さを短くすることができる。更に、シェルの外側に継ぎ目からの浸水防止のために樹脂製ハウジングを設ける必要もないことから、その樹脂製ハウジングの肉厚分だけコネクタの厚さを薄くすることもできる。従って、コネクタの占有面積を小さくし、電子機器内部の使用可能部分を増やすことが可能であり、電子機器のより自由なレイアウト設計の実現、電子機器の小型化を図ることができる。また、シェルの外側や後方に樹脂製ハウジングを設ける必要がないことから、その分の材料が不要となり、製造コストを低減することができる。また、コネクタに挿入されたプラグが強くこじられた場合や、こじられる力が何度も付加された場合に破断しやすい継ぎ目を有しないシームレスのシェルにより、シェルの強度、耐久性を飛躍的に高めることができる。
この構成によれば、シール材と段差部の当接により、シェルの外周の所定位置にシール材を容易に位置決めして取り付けることができると共に、シール材の所定位置への取付状態を安定させることができる。
この構成によれば、防水コネクタに挿入されるプラグのフックを係止することが可能となり、プラグの防水コネクタへの挿入状態を必要とされる取付強度で安定させることができる。また、プラグのフックの係止可能な部分を貫通孔しない非貫通凹部とすることにより、シェルの強度、耐久性をより一層高めることができる。
この構成によれば、少なくともシェルの支持部の前面より前側の領域を貫通部分のない非貫通面とすることにより、シェルの強度、耐久性をより一層高めることができる。また、非貫通面とすることにより、貫通孔を形成した場合の貫通孔を流路とする水の流れが生ずることを無くし、乾燥しにくい箇所に水が入り込むことを防止できると共に、プラグ挿入方向の前後におけるシール材の取付位置の自由度を大幅に向上することができる。
この構成によれば、シェルに係止孔を形成する構造は他の箇所と関わりなく当該箇所に係止孔を形成するだけで済むため、形状の自由度が高く、カスタム化に対応し易いため、シェルの強度、耐久性を向上しつつシェルに対する多様な形状の要求に柔軟に対応することができる。更に、厚さ方向の高さを低くするなど、シェルの強度、耐久性を向上しつつ小型化することも可能である。また、シール材を係止孔より後側でシェルの外周に周設することにより、係止孔から水が浸入することを無くし、シェルの外側に樹脂製ハウジングを設けることなく、シール材による防水性を確保することができる。
この構成によれば、シェル内への支持部の内装状態に拘わらず、シェルの内側から電子機器の回路基板側に水が浸入することを確実に防止することができる。
この構成によれば、シェルと支持部の水密構造により、シェルの内側から電子機器の回路基板側に水が浸入することを確実に防止することができる。また、支持部の背面に当接部を当接することにより、支持部の嵌合状態を安定させ、抜け止め防止も図ることができる。
この構成によれば、防水コネクタとケースの間から電子機器の回路基板側に水が浸入することを確実に防止できると共に、本発明の防水コネクタの効果を有する電子機器を得ることができる。
本発明による第1実施形態の防水コネクタ1は、例えば多機能携帯電話機、多機能携帯情報端末、携帯用音楽プレーヤーなど携帯型の電子機器等に用いられるものであり、micro―USB規格準拠等の防水コネクタ1である。
本発明による第2実施形態の防水コネクタ1aも、多機能携帯電話機、多機能携帯情報端末、携帯用音楽プレーヤーなど携帯型の電子機器等に用いられるものであり、micro―USB規格準拠等の防水コネクタ1aである。
本明細書開示の発明は、各発明、各実施形態の構成の他に、適用可能な範囲で、これらの部分的な構成を本明細書開示の他の構成に変更して特定したもの、或いはこれらの構成に本明細書開示の他の構成を付加して特定したもの、或いはこれらの部分的な構成を部分的な作用効果が得られる限度で削除して特定した上位概念化したものを含むものである。そして、下記変形例も包含する。
Claims (8)
- シームレスの略筒状のシェルと、
前記シェル内に壁状に内装される樹脂製の支持部と、
前記支持部で支持されているコンタクト端子と、
前記シェルの外周に周設されるシール材と、
を備えることを特徴とする防水コネクタ。 - 前記シェルに前記シール材に当接する段差部が周状に形成されていることを特徴とする請求項1記載の防水コネクタ。
- 前記シェルにプラグのフックを係止可能な非貫通凹部が外側に膨出して形成されていることを特徴とする請求項1又は2記載の防水コネクタ。
- 少なくとも前記シェルの前記支持部の前面より前側の領域が非貫通面で形成されていることを特徴とする請求項1~3の何れかに記載の防水コネクタ。
- 前記シェルにプラグのフックを係止可能な係止孔が形成され、
前記シール材が前記係止孔より後側で前記シェルの外周に周設されている
ことを特徴とする請求項1又は2記載の防水コネクタ。 - 前記シェルと前記支持部とで形成される背面側の凹状の受け部に封止材が充填されていることを特徴とする請求項1~5の何れかに記載の防水コネクタ。
- 前記支持部が前記シェル内に水密に嵌め合わされていると共に、
前記シェルの後部に前記支持部の背面に当接する当接部が設けられていることを特徴とする請求項1~5の何れかに記載の防水コネクタ。 - 請求項1~7の何れかに記載の防水コネクタがケースに内装され、
前記シール材が前記ケースに直接的若しくは間接的に押圧されて水密構造が形成されていることを特徴とする電子機器。
Priority Applications (4)
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US14/900,057 US9991625B2 (en) | 2013-06-20 | 2014-06-05 | Waterproof connector and electronic equipment |
KR1020157037207A KR102143885B1 (ko) | 2013-06-20 | 2014-06-05 | 방수 커넥터 및 전자기기 |
CN201480035124.1A CN105308800A (zh) | 2013-06-20 | 2014-06-05 | 防水连接器以及电子设备 |
EP14813270.7A EP3012921B1 (en) | 2013-06-20 | 2014-06-05 | Waterproof connector and electronic equipment |
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JP2013129294A JP6257182B2 (ja) | 2013-06-20 | 2013-06-20 | 防水コネクタ及び電子機器、防水コネクタの製造方法 |
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EP (1) | EP3012921B1 (ja) |
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Also Published As
Publication number | Publication date |
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EP3012921A1 (en) | 2016-04-27 |
KR102143885B1 (ko) | 2020-08-12 |
KR20160022314A (ko) | 2016-02-29 |
EP3012921A4 (en) | 2017-02-01 |
US20160149337A1 (en) | 2016-05-26 |
JP2015005383A (ja) | 2015-01-08 |
JP6257182B2 (ja) | 2018-01-10 |
EP3012921B1 (en) | 2024-06-05 |
CN105308800A (zh) | 2016-02-03 |
US9991625B2 (en) | 2018-06-05 |
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