WO2022210766A1 - コネクタ - Google Patents
コネクタ Download PDFInfo
- Publication number
- WO2022210766A1 WO2022210766A1 PCT/JP2022/015649 JP2022015649W WO2022210766A1 WO 2022210766 A1 WO2022210766 A1 WO 2022210766A1 JP 2022015649 W JP2022015649 W JP 2022015649W WO 2022210766 A1 WO2022210766 A1 WO 2022210766A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- connector
- terminal
- bent
- reinforcing
- Prior art date
Links
- 229920005989 resin Polymers 0.000 claims abstract description 276
- 239000011347 resin Substances 0.000 claims abstract description 276
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 112
- 238000005452 bending Methods 0.000 abstract description 9
- 230000002093 peripheral effect Effects 0.000 description 32
- 238000000465 moulding Methods 0.000 description 19
- 238000007789 sealing Methods 0.000 description 17
- 230000002787 reinforcement Effects 0.000 description 14
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polybutylene terephthalate Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Images
Classifications
-
- 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
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
-
- 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
- This disclosure relates to connectors.
- Patent Document 1 discloses a connector in which a resin portion is molded using a terminal fitting as an insert portion. In the resin portion, the terminal fitting is bent in an L shape.
- an object of the present disclosure is to further improve the accuracy of the positions and orientations of the terminals of the connector.
- a connector of the present disclosure includes a terminal including a bent portion, a first resin portion that holds a portion of the terminal with the bent portion exposed to the outside, and a mold using the first resin portion as an insert portion. a molded second resin portion; and a reinforcement portion disposed within an inner corner portion of the bent portion with the outer corner portion of the bent portion exposed, wherein the bent portion and the reinforcing portion are separated from each other. It is a connector covered with the said 2nd resin part.
- FIG. 1 is a perspective view showing a relay connector according to Embodiment 1.
- FIG. FIG. 2 is a perspective view showing a relay connector.
- FIG. 3 is an exploded perspective view of the relay connector.
- FIG. 4 is a sectional view taken along line IV-IV of FIG.
- FIG. 5 is an explanatory diagram showing a state in which the terminals and the first resin portion are arranged in the mold.
- FIG. 6 is an explanatory view showing the process of mold-molding the second resin portion.
- FIG. 7 is a perspective view showing a reinforcing portion, terminals, and a first resin portion according to Embodiment 2.
- FIG. FIG. 8 is a partial cross-sectional view of the relay connector.
- FIG. 9 is a perspective view showing a reinforcing portion, terminals, and a first resin portion according to a first modified example.
- FIG. 10 is a partial cross-sectional view of a relay connector according to a first modified example.
- FIG. 11 is a perspective view showing a reinforcing portion, terminals, and a first resin portion according to a second modified example.
- FIG. 12 is a partial cross-sectional view of a relay connector according to a second modification.
- the connectors of the present disclosure are as follows.
- a terminal including a bent portion, a first resin portion that holds a portion of the terminal with the bent portion exposed to the outside, and a mold that uses the first resin portion as an insert portion. a second resin portion; and a reinforcing portion disposed within an inner corner of the bent portion with the outer corner of the bent portion exposed, wherein the bent portion and the reinforcing portion overlap the second resin portion. It is a connector covered with a resin part.
- the second resin portion when the second resin portion is molded using the first resin portion as an insert portion, deformation of the bent portion is suppressed by arranging the reinforcing portion in the inner corner portion of the bent portion. Further, the inner corner of the bent portion can be covered with the reinforcing portion, and the outer corner of the bent portion can be covered with the second resin portion. Therefore, the bent portion is less likely to be deformed due to resin shrinkage or the like of the second resin portion. This can further improve the accuracy of the positions and orientations of the terminals of the connector.
- the terminal extends in a direction different from that of the first extension portion extending from the bent portion toward the first resin portion and the first extension portion extending from the bent portion. and a second extending portion, the reinforcing portion decreasing the dimension of the reinforcing portion in the longitudinal direction of the second extending portion as the distance from the bent portion increases in the longitudinal direction of the first extending portion. It may be formed in a shape having This makes it possible to reduce the size of the reinforcing portion while suppressing deformation of the bent portion by bringing the reinforcing portion into contact with the first extending portion and the second extending portion.
- the reinforcing portion may be a portion integrally molded with the first resin portion. Thereby, the reinforcing portion can be easily molded together with the first resin portion.
- the reinforcing portion may be separate from the first resin portion. This facilitates processing, deformation, etc. of the bent portion after molding the first resin portion.
- the reinforcing portion may be set to have a size to be press-fitted into a portion surrounded by an inner corner portion of the bent portion and the first resin portion. This makes it difficult for the reinforcing portion to become misaligned or detached from the inner corner of the bent portion.
- a plurality of the terminals may be provided, and the reinforcing portion may include a convex portion fitted between the plurality of terminals.
- the reinforcements are stably arranged in the inner corners of the bent portions.
- the protrusions also help keep the spacing between the terminals constant.
- the first resin portion is formed with a recess into which a portion of the reinforcing portion is fitted, and a portion of the reinforcing portion
- the reinforcing portion may be located in an inner corner of the bent portion while fitting into the recess. In this way, a portion of the reinforcing portion is fitted into the concave portion of the first resin portion, so that the reinforcing portion is stably arranged in the inner corner portion of the bent portion.
- FIG. 1 and 2 are perspective views showing the relay connector 20.
- FIG. FIG. 3 is an exploded perspective view of the relay connector 20.
- FIG. FIG. 4 is a sectional view taken along line IV-IV of FIG. The IV-IV line cross section in FIG. 1 is a plane along one terminal 30 .
- the housing 19 of the equipment to which the relay connector 20 is attached and the connectors 16 and 18 connected to the relay connector 20 are indicated by two-dot chain lines.
- the relay connector 20 has a first connector portion 22 connected to the connector 16 and a second connector portion 24 connected to the connector 18, and relays the connectors 16 and 18 (see FIG. 4).
- the relay connector 20 includes terminals 30 , a first resin portion 40 and a second resin portion 60 .
- the terminal 30 includes a first connector terminal portion 32, a second connector terminal portion 34, and an intermediate portion 36 (see FIG. 3).
- the first connector terminal portion 32 is a connector terminal for the first connector portion 22 .
- the second connector terminal portion 34 is a connector terminal for the second connector portion 24 .
- the intermediate portion 36 is a portion that connects the first connector terminal portion 32 and the second connector terminal portion 34 .
- the first resin portion 40 is a portion that holds the terminal 30 and includes a first resin body portion 41 and an exposed portion 50 .
- the first resin body portion 41 is a portion that is arranged inside the second resin portion 60 while partially covering the intermediate portion 36 .
- the exposed portion 50 is a portion exposed from the second resin portion 60 .
- the exposed portion 50 is provided with a bottomed cylindrical first connector housing portion 52 that surrounds the outer periphery of the first connector terminal portion 32 .
- the second resin portion 60 includes a second resin body portion 61 and a second connector housing portion 72 .
- the second resin body portion 61 covers the first resin body portion 41 and other portions of the intermediate portion 36 .
- the second connector housing portion 72 is a bottomed cylindrical portion that surrounds the outer periphery of the second connector terminal portion 34 .
- the first resin portion 40 and the second resin portion 60 may be made of the same resin.
- the resin may be, for example, PBT (polybutylene terephthalate), PP (polypropylene), polyamide, or the like.
- the first connector terminal portion 32 and the first connector housing portion 52 constitute the first connector portion 22 .
- the first connector terminal portion 32 is inserted and connected to the connector terminal 16a in the connector 16 (see FIG. 4).
- the second connector portion 24 is formed by the second connector terminal portion 34 and the second connector housing portion 72 .
- the second connector terminal portion 34 is connected to the connector terminal 18 a in the connector 18 .
- the first resin main body portion 41 and the second resin main body portion 61 connect the first connector portion 22 and the second connector portion 24 to each other and hold the first connector portion 22 and the second connector portion 24 in a constant posture. and covers the intermediate portion 36 of the terminal 30 to hold the terminal 30 in a fixed posture.
- the relay connector 20 has two terminals 30 .
- the number of terminals included in the relay connector 20 is arbitrary, and may be one or plural.
- the terminals may be arranged in a row, or may be arranged vertically and horizontally.
- the terminal 30 is made of metal such as copper or copper alloy.
- the terminal 30 is formed, for example, by pressing a metal plate.
- the terminal 30 is formed in an elongated shape and includes a first connector terminal portion 32, a second connector terminal portion 34, and an intermediate portion 36.
- the first connector terminal portion 32 is an elongated plate-like or pin-like portion formed at one end of the terminal 30 .
- the second connector terminal portion 34 is an elongated plate-like or pin-like portion formed at the other end of the terminal 30 .
- the intermediate portion 36 is provided between the first connector terminal portion 32 and the second connector terminal portion 34, and is a portion that electrically and mechanically connects the first connector terminal portion 32 and the second connector terminal portion 34. be.
- the terminal 30 is formed into a shape that bends at two points. More specifically, a portion 36 a of the intermediate portion 36 near the first connector terminal portion 32 is bent to one side in the thickness direction of the intermediate portion 36 .
- the bent portion 36a is bent at a substantially right angle.
- a portion 36b of the intermediate portion 36 near the second connector terminal portion 34 is bent toward the other side of the intermediate portion 36 in the thickness direction.
- the bent portion 36b is bent at a substantially right angle. That is, the bent portions 36a and 36b on both sides of the terminal 30 are bent in opposite directions, and the first connector terminal portion 32 and the second connector terminal portion 34 face in opposite directions.
- the connecting direction of the connector 16 to the first connector portion 22 including the first connector terminal portion 32 and the connecting direction of the connector 18 to the second connector portion 24 including the second connector terminal portion 34 are opposite to each other. can be set as
- the shape of the terminal is not limited to the above example.
- the terminal may be formed in a shape in which the intermediate portion is bent only at one point, that is, the terminal may be formed in an L shape.
- the shape of the terminal may be linear.
- the first connector terminal portion 32 and the second connector terminal portion 34 are thinner than the longitudinal middle portion of the terminal 30 .
- the region extending from the position closer to the center than the bent portion 36a toward the tip side of the first connector terminal portion 32 is formed thinner than the intermediate region of the terminal 30.
- a region extending from a position closer to the second connector terminal portion 34 than the bent portion 36 b toward the tip side of the second connector terminal portion 34 is formed thinner than the intermediate region of the terminal 30 .
- the bent portion 36b exposed from the first resin portion 40 is thicker than the bent portion 36a inside the first resin portion 40, the bent portion 36b is deformed when the second resin portion 60 is molded.
- the setting of the thickness of the terminal 30 is arbitrary.
- the first connector terminal portion 32 and the second connector terminal portion 34 are formed narrower than the intermediate region of the terminal 30.
- they are formed to have the same width throughout the longitudinal direction of the terminal 30. good too.
- the tip portions of the first connector terminal portion 32 and the second connector terminal portion 34 are formed so as to gradually taper toward the tip side so that they can be easily inserted into the mating connector terminals.
- a through hole 36 h is formed in the intermediate portion 36 .
- a plurality of (here, two) through-holes 36h are formed at intervals along the longitudinal direction of the intermediate portion 36 .
- the terminal 30 is positioned with respect to the second resin portion 60 more reliably by filling the resin forming the second resin portion 60 into the main through hole 36h.
- the through hole 36h may be omitted.
- a groove 36g is formed along the width direction of the terminal 30 in a portion of the intermediate portion 36 near the second connector terminal portion 34 .
- grooves 36g are formed along the width direction of the terminal 30 on both sides of the corresponding portion of the intermediate portion 36 .
- a plurality of grooves 36g are formed in each of both surfaces of the intermediate portion 36 , and the plurality of grooves 36g are arranged alternately along the longitudinal direction of the terminal 30 .
- the groove 36g collects air bubbles that may be generated when the resin is filled, which will be described later, in the groove 36g, thereby suppressing the formation of a gap along the longitudinal direction of the terminal 30. As shown in FIG. It should be noted that it is not essential to form the groove 36g.
- the plurality of terminals 30 are held in a fixed posture by the first resin portion 40 and the second resin portion 60 while being adjacent to each other with a space therebetween.
- the first resin portion 40 is molded using the terminal 30 as an insert component.
- the second resin portion 60 is molded using the first resin portion 40 holding the terminal 30 as an insert component. It may be understood that the first resin portion 40 is the primary resin molded portion and the second resin portion 60 is the secondary resin molded portion.
- the combination of the first resin portion 40 and the second resin portion 60 can realize the function of holding the terminal 30 in a fixed posture and the function of maintaining the connection state with the connectors 16 and 18.
- the terminals 30 are exposed in the mold space during molding of the respective molds.
- the length of the portion can be shortened, and deformation and displacement of the terminal 30 are less likely to occur.
- the first resin portion 40 includes the first resin body portion 41 and the exposed portion 50 as described above.
- the first resin main body portion 41 includes a base portion 42 and a projecting portion 44 .
- the base portion 42 is formed in a flat shape, here a disc shape.
- a protruding portion 44 protrudes from one surface side of the base portion 42 .
- the protruding portion 44 protrudes from a position deviated from the center of the base portion 42, here, from the outer peripheral portion.
- the protruding portion 44 protrudes in a direction intersecting one surface of the base portion 42, here, in a direction perpendicular thereto.
- a base frame portion 43 protrudes from the other side of the base portion 42 .
- the base frame portion 43 is formed in a U-shaped frame shape that is open on one side and closed on the other three sides.
- An intermediate frame portion 58 which will be described later, is connected to the base frame portion 43 .
- a portion of the intermediate portion 36 of the terminal 30 is arranged inside the protrusion 44 along the extending direction of the protrusion 44 .
- a portion of the intermediate portion 36 near the second connector terminal portion 34 extends outward from the projecting portion 44 .
- the bent portion 36b is located outside the protrusion 44.
- the second connector terminal portion 34 bends at the bent portion 36b and extends along a direction intersecting (here, perpendicular to) the projecting portion 44 .
- a portion of the intermediate portion 36 near the first connector terminal portion 32 passes through the base portion 42 from the protruding portion 44 and passes through the bottom portion 43 a of the base frame portion 43 toward the exposed portion 50 .
- the intermediate portion 36 is bent on the side opposite to the second connector terminal portion 34 at the bent portion 36 a in the exposed portion 50 , and the first connector terminal portion 32 is bent on the side opposite to the second connector terminal portion 34 .
- the exposed portion 50 includes an intermediate frame portion 58 and a first connector housing portion 52 .
- the intermediate frame portion 58 is formed in a U-shaped frame shape that is closed in the other three directions.
- the intermediate frame portion 58 continues to the base frame portion 43 .
- the other surface of the base portion 42, the surface of the first connector housing portion 52 facing the base portion 42 side, and the two opposing inward surfaces and the inward bottom surface formed by the base frame portion 43 and the intermediate frame portion 58 are formed.
- the first connector housing portion 52 is formed in a cylindrical shape with a bottom surrounding the outer periphery of the first connector terminal portion 32 .
- the first connector housing portion 52 is formed in the shape of a bottomed rectangular tube that is open on one side.
- the first connector housing portion 52 may be formed in other bottomed tubular shapes, such as an elliptical tubular shape and a cylindrical shape.
- the first connector housing portion 52 includes four peripheral wall portions 53, 54, 55, 56 and a bottom portion 57, as shown in FIGS.
- the intermediate frame portion 58 is formed so as to extend from the two opposing peripheral wall portions 53 and 54 and the bottom portion 57 to the peripheral wall portion 55 side.
- the base frame portion 43 continues on the extension of the intermediate frame portion 58 .
- one side portion of the first connector housing portion 52 is connected to the base frame portion 43 of the first resin main body portion 41 via the intermediate frame portion 58 .
- a locking hole 53h is formed in the peripheral wall portion 53 on one side of the first connector housing portion 52 so that a projection for locking of the mating connector 18 is locked.
- the axial direction of the first connector housing portion 52 and the extending direction of the intermediate portion 36 in the first resin main body portion 41 intersect (orthogonal here). Therefore, the first resin main body portion 41 is continuous with the exposed portion 50 in a direction intersecting (here, perpendicular to) the axial direction of the first connector housing portion 52 .
- the orientation of the first connector housing portion 52 may be set according to the orientation of the first connector terminal portion 32 with respect to the intermediate portion 36 .
- the intermediate portion 36 of the terminal 30 reaches the bottom portion 57 of the first connector housing portion 52 through the bottom portion of the intermediate frame portion 58 .
- the intermediate portion 36 bends within the bottom portion 37 at a bend portion 36a.
- the first connector terminal portion 32 exits from the bottom portion 37 and extends axially within the first connector housing portion 52 .
- the partial configuration of the first resin portion 40 will be described more specifically.
- the projecting portion 44 includes a detail 45 and a thick portion 46.
- the detail 45 is a portion of the protruding portion 44 on the base portion 42 side.
- the detail 45 has a dimension in the direction in which the two terminals 30 are arranged (which is also the tangential direction at the portion where the terminals 30 are provided on the outer peripheral edge of the base portion 42). It is formed in a rectangular parallelepiped shape longer than the dimension in the direction (radial direction of the base portion 42) perpendicular to the base portion 42. As shown in FIG. A portion of detail 45 protrudes outwardly from the outer perimeter of base portion 42, but this is not required.
- the thick portion 46 is provided closer to the second connector portion 24 than the detail 45 is.
- the thick portion 46 is formed thicker than the detail 45 .
- the thick portion 46 is formed such that a portion around the intermediate portion 36 protrudes from the detail 45 more than the other portions.
- the thick portion 46 protrudes from the bent portion 36b toward the second connector terminal portion 34 around the intermediate portion 36 to a greater extent than other portions.
- the thick portion 46 includes a cuboid portion.
- the rectangular parallelepiped portion protrudes from the detail 45 in the direction in which the tip of the second connector terminal portion 34 faces, and is flush with the detail 45 in the other three directions.
- a portion of the rectangular parallelepiped portion that protrudes toward the detail 45 is connected to the detail 45 via a slope.
- a portion of the thick portion 46 opposite to the detail 45 is formed on a plane perpendicular to the extending direction of the detail 45, and the intermediate portion 36 of the terminal 30 extends from this portion.
- Window portions 45h1 and 45h2 for exposing the intermediate portion 36 to the outside of the first resin portion 40 are formed in the details 45 .
- the window portion 45h1 is formed in a portion of the detail 45 closer to the thick portion 46.
- a part of the two intermediate portions 36 is commonly exposed in the window portion 45h1.
- Two window portions 45 h 2 are formed corresponding to the two intermediate portions 36 .
- a portion of the intermediate portion 36 is exposed at each window portion 45h2.
- One through hole 36h is formed in a portion of the intermediate portion 36 exposed to the window portion 45h1.
- the window portions 45h1 and 45h2 and the through hole 36h are filled with the second resin portion 60 .
- a window portion 43h is formed in the bottom portion 43a of the base frame portion 43 opposite to the opening.
- Two window portions 43 h are formed corresponding to the two intermediate portions 36 .
- a portion of the intermediate portion 36 is exposed at each window portion 43h.
- One through hole 36h is formed in a portion of the intermediate portion 36 exposed to the window portion 43h.
- the second resin portion 60 is filled in the window portion 43h and the through hole 36h.
- window portions 45h1, 45h2, and 43h are not essential.
- a positioning concave portion 51 is formed in a portion of the exposed portion 50 opposite to the opening of the first connector housing portion 52 .
- the positioning recess 51 is a recess that opens on the side opposite to the opening of the first connector housing portion 52 .
- the positioning recess 51 is, for example, a recess defined by a bottom surface 51a facing away from the opening of the first connector housing portion 52 and four side surfaces 51f.
- the four side surfaces 51f may include portions perpendicular to the bottom surface 51a.
- the side surfaces 51f may be arranged at positions corresponding to the sides of a rectangle (including a square). It should be noted that the opening edge of the positioning recess 51 is formed on an outwardly inclined inclined surface, but this is not essential.
- the positioning surface on the mold side can be brought into contact with the bottom surface 51a and the four side surfaces 51f of the positioning recess 51. Thereby, the exposed portion 50 is positioned with respect to the mold in a total of five directions in which the bottom surface 51a and the four side surfaces 51f face.
- the positioning recess 51 is formed from the outward portion of the bottom portion 57 of the first connector housing portion 52 to the outward portion of the bottom portion of the intermediate frame portion 58 .
- the positioning recess may be formed only in the bottom portion 57 of the first connector housing portion 52 or may be formed only in the outward portion of the bottom portion of the intermediate frame portion 58 .
- a positioning groove 59 extending from the opening of the first connector housing portion 52 toward the bottom portion 57 is formed in the outward portion of the exposed portion 50 .
- the positioning groove 59 is, for example, a groove defined by a bottom surface 59a facing outward and side surfaces 59b, 59b on both sides of the bottom surface 59a (see FIG. 2).
- the portion near the base frame portion 43 is formed thick so as to protrude outward.
- a peripheral wall portion 53 on one side of the first connector housing portion 52 is formed at a position closer to the outside than one side portion of the intermediate frame portion 58 .
- a positioning groove 59 is formed between the portion of the exposed portion 50 formed with the above thickness and the peripheral wall portion 53 on one side of the first connector housing portion 52 .
- the positioning groove 59 may be formed in another portion of the exposed portion 50 , for example, the outer periphery of the first connector housing portion 52 .
- the positioning surface on the mold side can be brought into contact with the bottom surface 59a and both side surfaces 59b of the positioning groove 59.
- the first resin portion 40 is positioned with respect to the mold in three directions in which the bottom surface 59a and the two side surfaces 59b face.
- the portion near the base frame portion 43 is also formed thick so as to protrude outward.
- the second resin portion 60 includes the second resin body portion 61 and the second connector housing portion 72 as described above.
- the second resin body portion 61 includes a base portion 62 and a projecting portion 64, as shown in FIGS.
- the base portion 62 is formed in a flat shape, here a disc shape.
- the base portion 62 covers the outer periphery and both surfaces of the base portion 42 of the first resin body portion 41 .
- a protruding portion 64 protrudes from one surface side of the base portion 62 .
- the protruding portion 64 protrudes from a position offset from the center of the base portion 62 .
- the projecting portion 64 covers the projecting portion 44 of the first resin body portion 41 .
- the protrusion 64 also covers the tip of the protrusion 44 .
- the second resin body portion 61 more specifically, the protrusion 64 extends from the extension of the protrusion 44 to extend the portion of the intermediate portion 36 of the terminal 30 between the protrusion 44 and the bent portion 36b. cover. That is, the second resin main body portion 61 covers at least a portion of the intermediate portion 36 closer to the first connector terminal portion 32 than the bent portion 36b. A portion of the second resin portion 60 that covers the thick portion 46 protrudes from the base portion 62 in the direction in which the second connector terminal portion 34 extends.
- the base portion 62 is provided with the following configuration for attaching the relay connector 20 to the housing 19 . That is, a peripheral groove 62g is formed in a portion of the outer peripheral portion of the base portion 62 near the first connector housing portion 52 . An annular seal member 80 is fitted in the circumferential groove 62g. The annular seal member 80 is, for example, a rubber ring. With the relay connector 20 attached to the housing 19 of the device to be attached (for example, a transmission), the portion of the base portion 62 on the side of the first connector housing portion 52 is fitted into the mounting hole 19h of the housing 19 (see FIG. 4).
- the annular seal member 80 is interposed in a compressed state between the second resin main body portion 61 and the inner peripheral surface of the mounting hole 19h, and the liquid passing between the mounting hole 19h and the relay connector 20 passes through. to regulate.
- the annular seal member 80 may be omitted depending on the application of the relay connector 20 .
- a screwing portion 68 protrudes from a portion of the outer peripheral portion of the second resin main body portion 61 .
- the screwing portion 68 is formed in a flat shape in the direction connecting the first connector housing portion 52 and the second connector housing portion 72 .
- a screw insertion hole 68 h is formed in the screwing portion 68 .
- a metal annular member 68a also called a metal collar
- the relay connector 20 is screwed and fixed to the housing by screwing the screw through the main screw insertion hole 68h into the screw hole on the housing 19 side. It should be noted that the relay connector 20 does not have to be fixed by screwing, and may be fixed by another fitting structure or the like.
- the second connector housing portion 72 is formed in a bottomed tubular shape surrounding the outer periphery of the second connector terminal portion 34 .
- the second connector housing portion 72 is formed in a bottomed square tube shape with one side open and each corner portion rounded.
- the second connector housing portion 72 may be formed in other bottomed tubular shapes, such as an elliptical tubular shape and a cylindrical shape.
- the second connector housing portion 72 includes a peripheral wall portion 73 and a bottom portion 77 .
- the peripheral wall portion 73 has a tubular shape, here, a square tubular shape with rounded corners.
- a portion of the bottom portion 77 of the second connector housing portion 72 and a portion of the peripheral wall portion 73 on the projecting portion 64 side near the bottom portion 77 are connected to the projecting portion 64 of the second resin main body portion 61 . That is, the second connector housing portion 72 is supported by the projecting portion 64 in a cantilevered manner. In this state, the axial direction of the second connector housing portion 72 and the extending direction of the intermediate portion 36 in the second resin main body portion 61 intersect (orthogonal here).
- the orientation of the second connector housing portion 72 may be set according to the orientation of the second connector terminal portion 34 with respect to the intermediate portion 36 .
- a sealing concave portion 77h is formed in a portion of the second connector housing portion 72, which is an inward portion of the bottom portion 77 and from which the second connector terminal portion 34 extends (see FIG. 4).
- a portion of the intermediate portion 36 in which the groove 36g is formed is provided within the seal recess 77h.
- a terminal sealing member 82 is provided in the sealing recess 77h.
- the terminal sealing member 82 is formed by filling and arranging a potting material such as polyurethane in the sealing recess 77h and solidifying it.
- the terminal seal member 82 may be made of thermoplastic resin or the like that softens with heat.
- a locking convex portion 75a and a pair of guide convex portions 75b are formed on a part of the outer peripheral portion of the second connector housing portion 72, here, a portion of the peripheral wall portion 73 on the side opposite to the first connector housing portion 52. be done.
- the locking convex portion 75 a is formed in a shape that gradually lowers toward the opening side of the second connector housing portion 72 .
- the pair of guide projections 75b has a convex shape extending along the axial direction of the second connector housing portion 72 and is provided on both sides of the locking projection 75a with a gap therebetween.
- the lock pieces 18P provided on the connector 18 are fitted into the pair of guide protrusions 75b along the outer surface of the peripheral wall portion 73, and the engagement is achieved.
- the locking projection 75a is locked in the locking hole 18Ph formed in the locking piece 18P.
- the housing 19 is, for example, a housing of equipment having movable mechanisms such as motors and gears.
- the first connector portion 22 is exposed inside the housing 19 and the second connector portion 24 is exposed outside the housing 19 .
- the connector 16 at the wiring end drawn out from the low-current signal device (for example, sensor) in the housing is connected to the first connector portion 22 .
- the connector 18 at the end of the wire harness outside the device is connected to the second connector portion 24 .
- the relay connector 20 relay-connects the wire harness outside the device and the wiring inside the device.
- the relay connector 20 is a relay connector for signal relay.
- the terminal 30 for signal relay is often thinner than the terminal for power supply, and in such a case, it is more required to suppress the deformation of the terminal.
- An annular seal member 80 and a terminal seal member 82 for suppressing the infiltration of liquid in the relay connector 20 are provided on the second resin portion 60 . Since the second resin portion 60 is molded using the first resin portion 40 as an insert portion, the surface of the second resin portion 60 can be expected to be smoother than the surface of the first resin portion 40 . Since the second resin portion 60 is provided with the annular seal member 80 and the terminal seal member 82 , liquid is effectively prevented from entering between the second resin portion 60 and the annular seal member 80 and the terminal seal member 82 . obtain.
- the second connector housing portion 72 that is part of the second resin portion 60 is exposed outside the housing 19 . Therefore, the second connector housing portion 72 outside the housing 19 is more susceptible to water than the first connector housing portion 52 inside the housing 19 .
- the surface shape can be made smooth.
- An annular seal member 84 may be provided between the connector 18 and the second connector housing portion 72 (see FIG. 4). An annular seal member 84 may be attached to the connector 18 . The annular seal member 84 is also pressed against the inner peripheral surface of the second connector housing portion 72 that is part of the second resin portion 60 . Since the inner peripheral surface is also expected to be finished as a smooth surface as described above, the annular seal member 84 also improves the water stopping performance.
- FIG. 5 shows an example in which the first resin portion 40 molded with the terminal 30 as an insert portion is placed in molds 100 and 110 for molding the second resin portion 60 .
- a first mold 100 and a second mold 110 are shown as an example.
- the first mold 100 has a mold surface 102 for forming an observable surface of the second resin portion 60 from the side where the first connector housing portion 52 opens.
- the second mold 110 has a mold surface 112 for forming an observable surface of the second resin portion 60 from the side where the second connector housing portion 72 opens.
- a mold space for forming the second resin portion 60 is formed by combining the first mold 100 and the second mold 110 . If there are surfaces that are not suitable for forming by the first mold 100 and the second mold 110, other molds such as slide molds are combined as appropriate.
- a positioning annular groove 104 for positioning the first connector housing portion 52 is formed in the first mold 100 .
- the annular positioning groove 104 is formed in an annular shape into which the peripheral wall portions 53, 54, 55, and 56 can be fitted. More specifically, the inner surface of the positioning annular groove 104 is formed in a shape corresponding to the shape of the inner peripheral surface of the first connector housing portion 52 (same surface shape or similar shape (slightly) smaller).
- the outer surface of the positioning annular groove 104 is formed in a shape corresponding to the shape of the outer peripheral surface of the first connector housing portion 52 (same surface shape or similar shape (slightly) larger).
- the outward surfaces of the peripheral wall portions 53 , 54 , 55 , 56 of the first connector housing portion 52 come into contact with the outer surface of the annular positioning groove 104 .
- the inner surfaces of the peripheral wall portions 53 , 54 , 55 , 56 of the first connector housing portion 52 contact the inner surface of the annular positioning groove 104 .
- the first connector housing portion 52 is positioned in two axial directions perpendicular to the axis and perpendicular to each other.
- the inner portion 105 of the positioning annular groove 104 of the first mold 100 contacts the inward surface of the bottom portion 77 .
- the first connector housing portion 52 is also positioned in the direction toward its opening side.
- a first terminal positioning hole 106 into which the first connector terminal portion 32 is inserted is formed in the inner portion 105 .
- the terminals 30 are positioned by inserting the first connector terminal portions 32 into the first terminal positioning holes 106 .
- the first mold 100 is formed with grooves 107 into which both side portions of the intermediate frame portion 58 can be fitted. By fitting both sides of the intermediate frame portion 58 into the grooves 107, the inner surfaces of both sides and the bottom of the intermediate frame portion 58 are also positioned.
- a positioning surface 108 f that can come into surface contact with the positioning groove 59 is formed on the outer side surface of the positioning annular groove 104 and the outer side surface of the groove 107 in the first mold 100 . Since the positioning groove 59 is a groove extending from the opening of the first connector housing portion 52 toward the bottom portion 77, when the exposed portion 50 is fitted into the annular positioning groove 104 and the groove 107, the positioning surface 108f is also easily inserted into the positioning groove 59. can be placed in
- the second mold 110 is formed with a bottom positioning surface 113 for positioning the outward surface of the bottom 77 of the first connector housing 52 and the bottom of the intermediate frame 58 .
- the bottom positioning surface 113 includes a surface formed by a positioning protrusion 113P that can be positioned within the positioning recess 51 described above.
- the positioning protrusion 113 ⁇ /b>P has a convex shape that can be arranged in the positioning recess 51 , and its surface is formed so as to come into surface contact with the bottom surface 51 a and the side surface 51 f of the positioning recess 51 .
- the bottom portion positioning surface 113 is in surface contact with the exposed portion 50 from the side opposite to the first mold 100, so that the bottom portion 77 of the first connector housing portion 52 and the bottom portion of the intermediate frame portion 58 are aligned with the bottom surface 51a. , in the direction in which each of the side surfaces 51f faces.
- a second terminal positioning hole 114 into which the second connector terminal portion 34 can be inserted is formed inside the portion of the second mold 110 that forms the second connector housing portion 72 .
- the terminals 30 are positioned by inserting the second connector terminal portions 34 into the second terminal positioning holes 114 .
- the first resin body portion 41 With the exposed portion 50 of the first resin portion 40 supported by the first mold 100 and the second mold 110, the first resin body portion 41 is arranged at a position away from the mold surfaces 102 and 112. .
- the intermediate portion 36 of the terminal 30 extends from the protruding portion 44 through the mold space and bends at the bent portion 36 b toward the second terminal positioning hole 114 .
- molten resin is injected into the mold space.
- the injection port 120 is formed so as to face a portion forming the base portion 62, for example.
- the melted resin passes between the first resin portion 40 and the intermediate portion 36 and the mold surfaces 102 and 112 and flows into the space forming the second resin portion 60 .
- the second resin portion 60 is molded by cooling and solidifying the molten resin.
- the relay connector 20 configured in this manner, when the second resin portion 60 is molded, the terminals 30 are partially held by the first resin body portion 41 in the mold spaces within the molds 100 and 110. can. Therefore, in the molds 100 and 110, the length of the portion where the terminal 30 is supported so as to be stretched can be shortened, and deformation of the terminal 30 due to resin pressure or the like is suppressed. Moreover, when molding the second resin portion 60 , the first connector housing portion 52 can be used to position the first resin portion 40 .
- the first connector housing portion 52 Since the first connector housing portion 52 has a bottomed cylindrical shape surrounding the first connector terminal portion 32, it can be connected in multiple directions using the peripheral wall portions 53, 54, 55, 56 and the bottom portion 57 of the bottomed cylindrical portion.
- the first resin portion 40 can be positioned. Therefore, the first resin portion 40 holding the terminal 30 can be positioned more reliably. As a result, deformation of the terminals 30 in the relay connector 20 is suppressed, and the aligned state of the plurality of terminals 30 is maintained as designed.
- the first resin main body portion 41 is continuous with the exposed portion 50 in a direction crossing the axial direction of the first connector housing portion 52 . Therefore, the outward surface of the bottom portion 57 of the first connector housing portion 52 is exposed to the outside. As a result, the first resin portion 40 can be positioned in three mutually orthogonal axial directions using the inner and outer surfaces of the bottom portion 57 of the first connector housing portion 52, and the first resin portion 40 can be positioned more reliably. .
- the positioning recess 51 is formed in the portion of the exposed portion 50 opposite to the opening of the first connector housing portion 52, the positioning recess 51 is also used to secure the first resin portion 40. can be positioned at
- a positioning groove 59 extending from the opening of the first connector housing portion 52 to the bottom portion 57 is formed in the outward portion of the exposed portion 50 . Therefore, the inner surface of the positioning groove 59 can be used to more reliably position the first resin portion 40 .
- the projecting portion 44 of the first resin main body portion 41 includes a detail 45 and a thick portion 46 .
- the intermediate portion 36 extends from the thick portion 46 of the projecting portion 44 and is directly covered with the second resin portion 60 . Therefore, the portion of the second resin portion 60 near the second connector terminal portion 34 does not need to cover the first resin body portion 41 .
- the portion of the relay connector 20 closer to the second connector housing portion 72 can be made smaller.
- the portion of the second resin body portion 61 on the side opposite to the direction in which the second connector housing portion 72 protrudes can be made smaller.
- the second resin portion 60 when the second resin portion 60 is mold-molded, the force that tends to deform the terminal 30 due to resin pressure tends to act on the thick portion 46 that is the tip portion of the projecting portion 44 . However, this force is received by thick portion 46 . Therefore, deformation of the terminal 30 is more effectively suppressed.
- the thick portion 46 is a part around the detail 45 and is thicker than the other parts. Therefore, it is easy to adjust the shape of the relay connector 20 according to the external environment of the relay connector 20 .
- the external environment is an environment outside the relay connector 20, for example, an environment that affects the structure of the relay connector 20, such as the positional relationship between the relay connector 20 and devices arranged around the relay connector 20. .
- the thick portion 46 protrudes in the direction toward the second connector terminal portion 34 around the intermediate portion 36 more than other portions. For this reason, the portion of the second resin main body portion 61 facing the second connector housing portion 72 is set to protrude further outward than the base portion 62 so that the thickness of the resin covering the thick portion 46 can be obtained. There is On the other hand, on the side of the second resin body portion 61 from the intermediate portion 36 toward the center of the base portion 62 , the thick portion 46 does not protrude with respect to the details 45 , so the portion covering the thick portion 46 is the base portion 62 . It is not necessary to protrude largely toward the center of the .
- the second resin portion 60 is less likely to be exposed to such an environment. Therefore, it is expected that the surface of the second resin portion 60 is smoother than the surface of the first resin portion 40 . Therefore, by providing the second resin portion 60 with sealing members such as the annular sealing members 80 and 84 and the terminal sealing member 82, it is expected that the sealing performance of the sealing members will be improved.
- FIG. 7 is a perspective view showing the terminals 30, the first resin portion 240 and the reinforcing portion 290.
- FIG. 8 is a partial cross-sectional view of the relay connector 220.
- FIG. 8 is a cross-sectional view in the same plane as FIG. 4.
- the relay connector 220 includes terminals 30 , a first resin portion 240 , a second resin portion 60 and a reinforcing portion 290 .
- the terminal 30 and the second resin portion 60 are the same as those described in the first embodiment.
- the first resin portion 240 has the same configuration as the first resin portion 40 described in the first embodiment, except that it is integrally formed with the reinforcing portion 290 . It can be understood that the relay connector 220 is obtained by adding the reinforcement portion 290 to the relay connector 20 of the first embodiment.
- the terminal 30 includes a bent portion 36b.
- a portion facing the first resin portion 240 from the bent portion 36b is the first extending portion 36b1.
- a second extending portion 36b2 extends from the bent portion 36b in a direction different from that of the first extending portion 36b1, that is, toward the second connector terminal portion 34. As shown in FIG.
- the first resin portion 240 holds a portion of the terminal 30 with the bent portion 36b exposed from the first resin portion 240 to the outside. More specifically, a portion of the first extending portion 36b1 away from the bent portion 36b is covered with the projecting portion 44 of the first resin portion 240. As shown in FIG. The first extending portion 36b1 is arranged along the longitudinal direction of the projecting portion 44 and protrudes from the distal end surface 44f of the projecting portion 44 . The bent portion 36b is located away from the distal end surface 44f of the projecting portion 44. As shown in FIG. Therefore, both the outer corner portion and the inner corner portion of the bent portion 36b are exposed to the outside from the first resin portion 240. As shown in FIG.
- the bent portion 36b is a right-angled bent portion. Therefore, the second extending portion 36b2 is perpendicular to the first extending portion 36b1 and is parallel to the distal end surface 44f.
- the direction in which the second extending portion 36 b 2 extends is the outer peripheral side of the base portion 42 , more specifically, the direction opposite to the central axis of the base portion 42 .
- the protrusions 44 and 64 may be omitted, and the second connector housing portion 72 may be directly connected to the base portion 62 .
- the second resin portion 60 is molded using the first resin portion 240 as an insert.
- This second resin portion 60 includes a projecting portion 64 and a second connector housing portion 72 .
- the projecting portion 64 covers the projecting portion 44, the first extending portion 36b1 projecting from the projecting portion 44, and the bent portion 36b.
- the second extension 36 b 2 extends from the protrusion 64 through the bottom of the second connector housing portion 72 and into the second connector housing portion 72 .
- the second connector housing portion 72 surrounds the second connector terminal portion 34 on the distal end side of the second extension portion 36b2.
- the reinforcing portion 290 is made of an insulating material such as resin. Reinforcements 290 are located in the inner corners of bent portion 36b with the outer corners of bent portion 36b exposed.
- the reinforcing portion 290 is formed in a shape having contact surfaces 291 and 292 corresponding to the shape of the inner corners of the bent portion 36b.
- the reinforcing portion 290 includes a contact surface 291 that can come into surface contact with the surface of the first extension portion 36b1 on which the second extension portion 36b2 extends, and A contact surface 292 capable of surface contact is provided on the surface on which the first extension portion 36b1 extends.
- contact surface 291 extends in a direction perpendicular to contact surface 292 .
- the corners of the contact surfaces 291, 292 may be rounded.
- the reinforcing portion 290 has an inclined surface 293 as a surface that decreases the dimension of the reinforcing portion 290 in the longitudinal direction of the second extending portion 36b2 as the distance from the bent portion 36b increases in the longitudinal direction of the first extending portion 36b1. formed into a shape. More specifically, a portion 290a of the reinforcing portion 290 extending from the second extending portion 36b2 to the front end surface 44f of the projecting portion 44 is formed in a shape such that the projecting length with respect to the first extending portion 36b1 gradually decreases.
- the portion 290a has a trapezoidal shape with a smaller dimension at the distal end surface 44f when viewed from the direction perpendicular to both the first extension 36b1 and the second extension 36b2.
- An inclined surface 293 on the opposite side of the second extending portion 36b2 in the portion 290a is inclined so as to approach the first extending portion 36b1 as the distance from the second extending portion 36b2 increases.
- a portion 290b of the reinforcing portion 290 on the side of the tip surface 44f extends from the portion of the portion 290a on the side of the tip surface 44f toward the tip surface 44f with the same size.
- the reinforcing portion 290 is set to a size that is not exposed in the sealing recess 77h.
- the reinforcement part 290 is a part integrally molded with the first resin part 240 . More specifically, the reinforcing portion 290 is a portion integrally formed with the first resin portion 240 using the same resin material as the first resin portion 240 . Since the reinforcing portion 290 is connected to the first resin portion 240 via the portion 290b, it is easy to maintain a constant posture with respect to the first resin portion 240. As shown in FIG.
- a plurality of (here, two) terminals 30 are held by the first resin portion 240 at intervals.
- Two reinforcing parts 290 are separately provided corresponding to the two terminals 30 .
- the accuracy of the positions and orientations of the two terminals 30 can be enhanced. That is, when molding the first resin portion 240 using the two terminals 30 as insert portions, a positioning portion in the mold can be arranged between the two terminals 30 . As a result, the two terminals 30 can be more reliably positioned near the first resin portion 240 when the first resin portion 240 is molded.
- the second resin portion 60 is molded using the terminal 30, the first resin portion 240, and the reinforcement portion 290 as insert portions while the reinforcement portion 290 is arranged in the inner corner portion of the bent portion 36b. be.
- the second resin portion 60 covers the bent portion 36 b and the reinforcing portion 290 .
- the projecting portion 44 of the second resin portion 60 covers the outer corner portion of the bent portion 36b.
- a portion of the second resin portion 60 from the projecting portion 44 to the second connector housing portion 72 covers the reinforcing portion 290 .
- the reinforcing portion 290 is arranged in the inner corner portion of the bent portion 36b. be.
- the resin pressure acts on the second extending portion 36b2 to reduce the angle of the bent portion 36b. there's a possibility that. Since this force is received by the reinforcing portion 290, deformation of the bent portion 36b due to resin pressure is suppressed. Thereby, the accuracy of the position and orientation of the terminal 30 of the relay connector 220 can be further improved.
- the inner corner of the bent portion 36b is covered with the reinforcing portion 290, and the outer corner of the bent portion 36b is covered with the second resin portion 60.
- resin shrinkage may occur in the molded resin.
- Resin sink marks tend to increase as the volume increases. Since the second resin portion 60 partially covers the bent portion 36b, resin sink marks can be reduced compared to the case where the second resin portion 60 covers the entire bent portion 36b. Therefore, it is difficult for the bent portion 36b to deform due to resin shrinkage caused by resin shrinkage of the second resin portion 60, and from this point, deformation of the bent portion 36b is suppressed.
- the reinforcing portion 290 is arranged inside the inner corner of the bent portion 36b, and the outer corner of the bent portion 36b is exposed from the reinforcing portion 290 as well. Therefore, when the bent portion 36b and the reinforcing portion 290 are covered with the second resin portion 60, the thickness of the portion covering the outer corner portion of the bent portion 36b can be reduced. This prevents the portion of the relay connector 220 corresponding to the outer corner of the bent portion 36b from increasing in size. In the second embodiment, the central portion of the base portion 62 and the portion opposite to the second connector housing portion 72 are prevented from increasing in size.
- the reinforcement portion 290 is formed in a shape having a surface 293 that reduces the dimension of the reinforcement portion 290 in the longitudinal direction of the second extension portion 36b2 as the length of the reinforcement portion 290 in the longitudinal direction of the first extension portion 36b1 increases away from the bent portion 36b. ing. For this reason, contact surfaces 291 and 292 that contact the first extending portion 36b1 and the second extending portion 36b2 are formed on the reinforcing portion 290 as long as possible to suppress deformation of the bent portion 36b. It is possible to reduce the size of the reinforcing portion 290 and the size of the second resin portion 60 covering the reinforcing portion 290 at the portion on the near side.
- the reinforcing portion 290 is a portion integrally molded with the first resin portion 240, the reinforcing portion 290 can be easily molded together with the first resin portion 240. Note that even if the reinforcing portion 290 is molded together with the first resin portion 240, the volume of the portion surrounding the bent portion 36b is small because the reinforcing portion 290 is positioned at the inner corner, and the resin of the reinforcing portion 290 is small. The influence of deformation of the bent portion 36b due to sink marks is sufficiently suppressed.
- a reinforcing portion 390 corresponding to the reinforcing portion 290 is separate from the first resin portion 240.
- the main reinforcing section 390 is configured by integrating a plurality of reinforcing sections 290 in Embodiment 2 so as to fill the spaces between them. For this reason, the reinforcing portion 390 is formed in a shape in which portions of the same shape are continuous along the direction in which the plurality of terminals 30 are arranged. In this manner, bending deformation of the bent portions 36b of the plurality of terminals 30 can be suppressed by one reinforcing portion 390, and the mounting operation of the reinforcing portion 390 can be simplified.
- the tip surface of the projecting portion 44 of the first resin portion 240 is formed flat, and the surface 391 of the reinforcing portion 390 that contacts the tip surface 44f of the projecting portion 44 of the first resin portion 240 is also formed flat.
- the reinforcing portion 390 is arranged in the inner corner portion of the bent portion 36b with the surface 391 of the reinforcing portion 390 in surface contact with the tip surface 44f of the projecting portion 44 .
- the reinforcement portion 390 formed separately from the first resin portion 240 is mounted inside the inner corner portion of the bent portion 36b. be able to.
- the reinforcing portion 390 does not exist between the plurality of bent portions 36b. can do.
- the first resin part 240 holding the terminal 30 and the reinforcement part 390 are set in a mold for molding the second resin part 60. Then, the second resin portion 60 can be molded.
- the reinforcing portion 390 can suppress deformation of the bent portion 36b due to resin pressure and resin sink marks when the second resin portion 60 is molded.
- the reinforcement part 390 can be formed by mold molding or the like separately from the terminal 30 . Therefore, deformation of the bent portion 36b of the terminal 30 due to resin pressure and resin sinkage during molding of the reinforcing portion 390 is suppressed. Further, after the first resin portion 240 is molded, the bent portion 36b can be easily processed, deformed, and the like. For example, after molding the first resin portion 240 using the unprocessed member for molding the terminal 30 as an insert portion, the unprocessed member can be bent to form the bent portion 36b. Further, for example, if the bent portion 36b deviates from the designed bending angle, it is possible to correct the bent portion 36b before or during mounting of the reinforcing portion.
- the reinforcing portion 390 can be in surface contact with the first extending portion 36b1 and the second extending portion 36b2. Therefore, the arrangement state of the reinforcing portion 390 is stabilized.
- the reinforcing portion 390 is less likely to tilt, and deformation of the bent portion 36b can be effectively suppressed.
- the reinforcing portion 390 may be set to a size that is press-fitted into the portion surrounded by the inner corner portion of the bent portion 36b and the first resin portion 240.
- the dimension of the reinforcing portion 390 in the longitudinal direction of the first extending portion 36b1 is larger than the distance between the inner corner side surface of the second extending portion 36b2 and the tip surface 44f of the projecting portion 44 (reinforcing portion 390 can be press-fitted).
- the reinforcing portion 390 when the reinforcing portion 390 is attached between the inner corner portion of the bent portion 36b and the first resin portion 240, the reinforcing portion 390 is less likely to shift or come off, and bending deformation of the bent portion 36b is prevented. Effectively suppressed.
- the reinforcing portion 490 is separate from the first resin portion 240, similar to the reinforcing portion 390 of the first modified example.
- the reinforcing portion 490 has a configuration in which a convex portion 491 that fits between the plurality of terminals 30 is formed on the reinforcing portion 390 .
- the reinforcing portion 490 has a configuration in which a fitting portion 492 that fits into the concave portion 244g of the first resin portion 240 is formed in the reinforcing portion 390 .
- a convex portion 491 extending along the bent portions 36b is formed in a portion of the reinforcing portion 490 that is arranged between the plurality of bent portions 36b.
- a portion of the protrusion 491 can fit between the plurality of first extensions 36b1.
- Another portion of the protrusion 491 can fit between the plurality of second extensions 36b2.
- One of the portion that fits between the plurality of first extension portions 36b1 and the portion that fits between the plurality of second extension portions 36b2 of the convex portion 491 may be omitted.
- a portion of the reinforcing portion 490 facing the first resin portion 240 extends longer than the reinforcing portion 390 and serves as a fitting portion 492 .
- a concave portion 244g is formed in a portion of the distal end surface 44f of the protruding portion 44 that faces the fitting portion 492 .
- the fitting portion 492 may be sized to be press-fitted into the recess 244g.
- the lowermost surface of the fitting portion 492 is preferably in surface contact with the inner surface of the recess 244g.
- the convex portion 491 of the reinforcing portion 490 can fit between the terminals 30 .
- the protrusions 491 can keep the intervals between the plurality of terminals 30 integral, thereby further improving the accuracy of the positions and orientations of the terminals 30 .
- the reinforcing portion 490 is more stably arranged in the inner corner portion of the bent portion 36b, and the displacement and falling off of the reinforcing portion 490 are more assured. suppressed by
- a terminal including a first connector terminal portion, a second connector terminal portion, and an intermediate portion, a first resin portion for holding the terminal, and the first resin portion are molded as an insert portion.
- a second resin portion including a first resin main body portion disposed within the second resin portion; and an exposed portion exposed from the second resin portion;
- the resin main body part covers a part of the intermediate part, the exposed part includes a bottomed cylindrical first connector housing part that surrounds the outer circumference of the first connector terminal part, and the second resin part: a second resin main body covering the first resin main body and another part of the intermediate section; and a bottomed cylindrical second connector housing surrounding the outer periphery of the second connector terminal, It is a relay connector.
- the terminals are held by the first resin body portion in the mold. This suppresses deformation of the terminal. Further, when molding the second resin portion, the first connector housing portion surrounding the outer circumference of the first connector terminal portion can be used to position the first resin portion, so that the first resin portion holding the terminals can be positioned. positioned more reliably.
- a second aspect is the relay connector according to the first aspect, wherein the first resin main body portion is connected to the exposed portion in a direction crossing the axial direction of the first connector housing portion. is a relay connector.
- the first connector housing can be positioned using the inner and outer surfaces of the bottom portion of the first connector housing, and the first resin portion can be positioned more reliably.
- a third aspect is the relay connector according to the second aspect, wherein a positioning recess is formed in an outward portion of the exposed portion opposite to the opening of the first connector housing portion. connector.
- the first connector housing portion can be positioned using the positioning recess, the first resin portion can be positioned more reliably.
- a fourth aspect is the relay connector according to any one of the first to third aspects, wherein the outward portion of the exposed portion has a positioning groove extending from the opening of the first connector housing portion toward the bottom side. It is a relay connector formed. In this case, since the exposed portion is positioned using the inner surface of the positioning groove, the first resin portion is positioned more reliably.
- a fifth aspect is the relay connector according to any one of the first to fourth aspects, wherein the second resin body portion covers a portion of the intermediate portion extending from the first resin body portion. and wherein the first resin main body portion includes a detail and a thick portion located closer to the second connector terminal portion than the detail and thicker than the detail.
- the portion of the second resin body portion near the second connector terminal portion does not need to cover the first resin body portion. Therefore, the portion of the relay connector closer to the second connector housing portion can be made smaller. In addition, when the second resin portion is mold-molded, the force that tends to deform the terminal is received by the thick portion. Thereby, deformation of the terminal can be suppressed.
- a sixth aspect is the relay connector according to the fifth aspect, wherein the thick portion protrudes from the small portion at a portion around the intermediate portion to a greater extent than at other portions. .
- the thick portion protrudes from the small portion at a portion around the intermediate portion to a greater extent than at other portions. .
- the shape of the relay connector can be adjusted according to the positional relationship between the connector and other devices in the external environment of the relay connector.
- a seventh aspect is the relay connector according to the sixth aspect, wherein the intermediate portion includes a bent portion that bends outside the first resin portion and inside the second resin portion, and the second resin body portion At least a portion of the intermediate portion closer to the first connector terminal portion than the bent portion is covered, and the thick portion extends around the intermediate portion in a direction from the bent portion toward the second connector terminal portion. It is a relay connector that protrudes larger than other parts at the As a result, when the terminal is bent in the middle, it is possible to reduce the size of the outer portion of the bent portion.
- An eighth aspect is the relay connector according to any one of the first to seventh aspects, wherein the second resin portion is provided with a sealing member.
- the second resin portion is formed using the first resin portion as an insert portion, the surface of the second resin portion can be formed more smoothly. Thereby, it is possible to improve the sealing performance of the sealing member.
- a ninth aspect includes a terminal in which a connector terminal portion and an intermediate portion are connected via a bent portion, and a first resin portion that holds a portion of the terminal with the bent portion exposed to the outside. and a second resin portion that is molded using the first resin portion as an insert portion, wherein the second resin portion covers a portion of the first resin portion that holds the intermediate portion. and a connector housing portion surrounding the connector terminal portion, the intermediate portion being provided at a position offset from the center of the base portion, and the connector housing extending toward the outer peripheral side of the base portion. , is the connector.
- the intermediate portion is provided at a position offset from the center of the base portion, and the connector housing extends toward the outer peripheral side of the base portion.
- the reinforcing portion is arranged in the inner corner of the bent portion with the outer corner of the bent portion exposed. Therefore, the second resin portion covers the reinforcing portion on the side where the connector terminal extends from the intermediate portion, but can directly cover the outer corner portion of the bent portion on the opposite side. As a result, the portion on the outside corner side of the bent portion can be made smaller.
- the first to eighth aspects and the ninth aspect can be combined with each configuration (1) to (7) listed as embodiments of the present disclosure.
- the configuration of (1) the reinforcing portion may be applied.
- the ninth aspect it further includes a reinforcing portion arranged inside the inner corner of the bent portion in a state where the outer corner of the bent portion is exposed, like the reinforcing portion of (1). may be configured.
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Abstract
Description
最初に本開示の実施態様を列記して説明する。
本開示のコネクタの具体例を、以下に図面を参照しつつ説明する。なお、本開示はこれらの例示に限定されるものではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。
以下、実施形態1に係る中継コネクタについて説明する。実施形態2では、本実施形態1を前提とした説明がなされる。図1及び図2は中継コネクタ20を示す斜視図である。図3は中継コネクタ20の分解斜視図である。図4は図1のIV-IV線断面図である。図1のIV-IV線断面は一つの端子30に沿う面である。図4において、中継コネクタ20が装着される機器の筐体19及び中継コネクタ20に接続されるコネクタ16、18が2点鎖線で示される。
中継コネクタ20は、コネクタ16に接続される第1コネクタ部22と、コネクタ18に接続される第2コネクタ部24とを備え、コネクタ16、18(図4参照)を中継接続するものである。
本実施形態では、中継コネクタ20は、2本の端子30を備える。なお、中継コネクタ20が備える端子の数は任意であり、1本でもよいし、複数本でもよい。中継コネクタが3本以上の端子を備える場合、複数の端子は、一列に並ぶように配置されてもよいし、縦横に並ぶように配置されてもよい。
第1樹脂部40は、上記したように、第1樹脂本体部41と、露出部50とを含む。
第2樹脂部60は、上記したように、第2樹脂本体部61と、第2コネクタハウジング部72とを含む。
中継コネクタ20が筐体19に取付けられた状態で、上記したようにベース部62が取付孔19hに嵌め込まれると共に、ネジ止部68が筐体19にネジ止固定される(図4参照)。
中継コネクタ20の第2樹脂部60を金型成形する製造例について説明する。
このように構成された中継コネクタ20によると、第2樹脂部60を金型成形する際、金型100、110内の金型空間において、第1樹脂本体部41によって端子30の一部を保持できる。このため、金型100、110内において、端子30が掛渡されるように支持される部分の長さを短くすることができ、樹脂圧等による端子30の変形が抑制される。また、第2樹脂部60を金型成形する際、第1コネクタハウジング部52を利用して第1樹脂部40を位置決めできる。第1コネクタハウジング部52は、第1コネクタ端子部32を囲む有底筒形状であるため、当該有底筒状部分の周壁部53、54、55、56、底部57を利用して多方向で第1樹脂部40を位置決めできる。このため、端子30を保持する第1樹脂部40をより確実に位置決めできる。これにより、中継コネクタ20における端子30の変形が抑制されると共に複数の端子30の整列状態が設計通りに良好に保たれる。
実施形態2に係るコネクタについて説明する。実施形態2では、実施形態1に係る中継コネクタを前提とした説明がなされる。本実施形態2の説明において、実施形態1で説明したものと同様構成要素については同一符号を付してその説明を省略する。図7は端子30、第1樹脂部240及び補強部290を示す斜視図である。図8は中継コネクタ220の部分断面図である。図8は図4と同じ面における断面図である。
本開示は、下記の各態様をも開示する。
16a、18a コネクタ端子
18P ロック片
18Ph 係止孔
19 筐体
19h 取付孔
20、220 中継コネクタ
22 第1コネクタ部
24 第2コネクタ部
30 端子
32 第1コネクタ端子部
34 第2コネクタ端子部
36 中間部
36a、36b 曲げ部分
36b1 第1延出部
36b2 第2延出部
36g 溝
36h 貫通孔
40、240 第1樹脂部
41 第1樹脂本体部
42 ベース部
43 ベース枠部
43a 底部
43h 窓部
44 突出部
45 細部
45h1、45h2 窓部
46 太部
50 露出部
51 位置決め凹部
51a 底面
51f 側面
52 第1コネクタハウジング部
53、54、55、56 周壁部
53h 係止孔
57 底部
58 中間枠部
59 位置決め溝
59a 底面
59b 側面
60 第2樹脂部
61 第2樹脂本体部
62 ベース部
62g 周溝
64 突出部
68 ネジ止部
68a 金属環状部材
68h ネジ挿通孔
72 第2コネクタハウジング部
73 周壁部
75a 係止凸部
75b ガイド凸部
77 底部
77h シール用凹部
80、84 環状シール部材
82 端子シール部材
100 第1金型
102、112 金型面
104 位置決め環状溝
105 内側部分
106 第1端子位置決め孔
107 溝
108f 位置決め面
110 第2金型
113 底部位置決め面
113P 位置決め凸部
114 第2端子位置決め孔
120 注入口
244g 凹部
290、390、490 補強部
291 接触面
292 接触面
293 傾斜面
391 面
491 凸部
492 嵌込部
Claims (7)
- 曲げ部分を含む端子と、
前記曲げ部分を外側に露出させた状態で、前記端子の一部を保持する第1樹脂部と、
前記第1樹脂部をインサート部として金型成形された第2樹脂部と、
前記曲げ部分の外側角部を露出させた状態で、前記曲げ部分の内側角部内に配置された補強部と、
を備え、
前記曲げ部分と前記補強部とが前記第2樹脂部により覆われている、コネクタ。 - 請求項1に記載のコネクタであって、
前記端子は、前記曲げ部分から前記第1樹脂部に向う第1延出部と、前記曲げ部分から前記第1延出部とは異なる方向に向う第2延出部とを含み、
前記補強部は、前記第1延出部の長手方向において前記曲げ部分から遠ざかるにつれて、前記第2延出部の長手方向における前記補強部の寸法を小さくする面を有する形状に形成されている、コネクタ。 - 請求項1又は請求項2に記載のコネクタであって、
前記補強部は、前記第1樹脂部と一体成形された部分である、コネクタ。 - 請求項1又は請求項2に記載のコネクタであって、
前記補強部は、前記第1樹脂部とは別体とされている、コネクタ。 - 請求項4に記載のコネクタであって、
前記補強部は、前記曲げ部分の内側角部と前記第1樹脂部とで囲まれる部分に圧入される大きさに設定されている、コネクタ。 - 請求項4又は請求項5に記載のコネクタであって、
前記端子を複数備え、
前記補強部は、前記複数の端子の間に嵌る凸部を含む、コネクタ。 - 請求項4から請求項6のいずれか1項に記載のコネクタであって、
前記第1樹脂部に、前記補強部の一部が嵌る凹部が形成されており、
前記補強部の一部が前記凹部に嵌った状態で、前記補強部が前記曲げ部分の内側角部内に配置される、コネクタ。
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Citations (6)
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US5619012A (en) * | 1993-12-10 | 1997-04-08 | Philips Electronics North America Corporation | Hinged circuit assembly with multi-conductor framework |
JP2000252038A (ja) * | 1999-03-02 | 2000-09-14 | Yazaki Corp | 成形コネクタの製造方法及び成形コネクタ用の一次成形体 |
JP2004207238A (ja) * | 2002-12-20 | 2004-07-22 | Siemens Ag | コンタクト構成部材 |
JP2008018633A (ja) * | 2006-07-13 | 2008-01-31 | Sumitomo Wiring Syst Ltd | インサート成形品の製造方法およびインサート成形用の成形型 |
JP2015106436A (ja) * | 2013-11-28 | 2015-06-08 | アイシン精機株式会社 | 電気接続器 |
WO2018230158A1 (ja) * | 2017-06-14 | 2018-12-20 | 第一精工株式会社 | 電気コネクタおよびその製造方法 |
-
2021
- 2021-03-30 JP JP2021057826A patent/JP2022154676A/ja active Pending
-
2022
- 2022-03-29 US US18/284,197 patent/US20240162645A1/en active Pending
- 2022-03-29 WO PCT/JP2022/015649 patent/WO2022210766A1/ja active Application Filing
- 2022-03-29 CN CN202280022150.5A patent/CN117063352A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5619012A (en) * | 1993-12-10 | 1997-04-08 | Philips Electronics North America Corporation | Hinged circuit assembly with multi-conductor framework |
JP2000252038A (ja) * | 1999-03-02 | 2000-09-14 | Yazaki Corp | 成形コネクタの製造方法及び成形コネクタ用の一次成形体 |
JP2004207238A (ja) * | 2002-12-20 | 2004-07-22 | Siemens Ag | コンタクト構成部材 |
JP2008018633A (ja) * | 2006-07-13 | 2008-01-31 | Sumitomo Wiring Syst Ltd | インサート成形品の製造方法およびインサート成形用の成形型 |
JP2015106436A (ja) * | 2013-11-28 | 2015-06-08 | アイシン精機株式会社 | 電気接続器 |
WO2018230158A1 (ja) * | 2017-06-14 | 2018-12-20 | 第一精工株式会社 | 電気コネクタおよびその製造方法 |
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