WO2024075489A1 - コネクタ - Google Patents

コネクタ Download PDF

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Publication number
WO2024075489A1
WO2024075489A1 PCT/JP2023/033538 JP2023033538W WO2024075489A1 WO 2024075489 A1 WO2024075489 A1 WO 2024075489A1 JP 2023033538 W JP2023033538 W JP 2023033538W WO 2024075489 A1 WO2024075489 A1 WO 2024075489A1
Authority
WO
WIPO (PCT)
Prior art keywords
retainer
cavity
terminal
temporary
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/033538
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
哲矢 宮村
元 松井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to CN202380066720.5A priority Critical patent/CN119895670A/zh
Priority to US19/113,424 priority patent/US20260088553A1/en
Publication of WO2024075489A1 publication Critical patent/WO2024075489A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4361—Insertion of locking piece perpendicular to direction of contact insertion
    • H01R13/4362—Insertion of locking piece perpendicular to direction of contact insertion comprising a temporary and a final locking position
    • 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
    • H01R13/42—Securing in a demountable manner
    • 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
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4361—Insertion of locking piece perpendicular to direction of contact insertion

Definitions

  • This disclosure relates to connectors.
  • Patent Document 1 discloses a connector that includes a housing body portion in which a cavity is formed into which a terminal fitting can be inserted and removed, and a retainer.
  • the retainer is formed with a locking protrusion that secondarily locks the terminal fitting.
  • the retainer is movable relative to the housing body portion between a provisional locking position and a full locking position. In the provisional locking position, the female terminal fitting is allowed to be inserted and removed, and in the full locking position, the locking protrusion secondarily locks the female terminal fitting.
  • the purpose of this disclosure is to further miniaturize the connector.
  • the connector disclosed herein is a connector that holds terminals, and includes a housing in which a cavity capable of accommodating the terminals is formed, and a retainer that can be attached to the housing in a temporary attachment position and a final attachment position, the retainer including a locking protrusion that can engage with the terminal accommodated in the cavity, and when the retainer is in the temporary attachment position, the locking protrusion is retracted from the cavity, and when the retainer is rotated from the temporary attachment position toward the final attachment position, the locking protrusion protrudes into the cavity and engages with the terminal in the cavity.
  • This disclosure allows the connector to be made even smaller.
  • FIG. 1 is a perspective view showing a connector according to a first embodiment.
  • FIG. 2 is an exploded perspective view showing the connector.
  • FIG. 3 is an exploded perspective view showing the connector.
  • FIG. 4 is a partial cross-sectional view taken along line IV-IV in FIG.
  • FIG. 5 is a side view showing the connector in a temporarily attached state.
  • FIG. 6 is a cross-sectional view showing the connector in a provisionally attached state.
  • FIG. 7 is a cross-sectional view taken along line VII-VII in FIG.
  • FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG.
  • FIG. 9 is a side view of the connector showing the state in which the retainer is retracted.
  • FIG. 10 is a cross-sectional view showing the connector with the retainer retracted.
  • a connector for holding terminals comprising: a housing in which a cavity capable of accommodating the terminals is formed; and a retainer that can be attached to the housing in a temporary attachment position and a final attachment position, the retainer including a locking protrusion that can engage with the terminal accommodated in the cavity, and when the retainer is in the temporary attachment position, the locking protrusion is retracted from the cavity, and when the retainer is rotated from the temporary attachment position to the final attachment position, the locking protrusion protrudes into the cavity and engages with the terminal in the cavity.
  • the retainer rotates from the temporary mounting position toward the actual mounting position, allowing the locking protrusion to lock onto the terminal in the cavity and hold the terminal.
  • the rear side of the insertion direction of the terminal into the cavity is the front side, and the opposite direction is the rear side, and the retainer may be supported in the temporary attachment position so as to be movable along an inclined direction that moves away from the cavity as it moves toward the rear side along the extension direction of the cavity.
  • the retainer is supported in the temporary attachment position so that it can move in an inclined direction. Therefore, when the terminal comes into contact with the locking protrusion during insertion into the cavity, the locking protrusion can move in a direction away from the cavity.
  • a connector according to (1) or (2) in which the rear side of the insertion direction of the terminal into the cavity is the front side and the opposite direction is the rear side, the housing has an attachment opening into which the retainer is attached, the retainer includes a retainer body attached to the attachment opening, a pair of locking wall portions extending from both sides of the retainer body along both sides of the housing, and a pair of anti-pullout protrusions protruding from the inner surfaces of the pair of locking wall portions, and the housing has a pair of temporary locking protrusions and a pair of actual locking protrusions protruding from the outer surfaces on both sides.
  • the retainer includes a pair of protrusions for temporary locking, the pair of protrusions for temporary locking are located closer to the mounting opening than the pair of protrusions for full locking, an inclined temporary support groove is formed between the protrusions for temporary locking and the protrusions for full locking, the inclined temporary support groove extending in an inclined direction away from the cavity toward the rear side along the extension direction of the cavity, and supporting the retainer in a position along the inclined direction, and the surface of the protrusion for full locking opposite the mounting opening may be a surface for full locking that engages with the protrusions for full locking to keep the retainer in the full mounting position.
  • the retainer is held in the temporary attachment position by placing a pair of anti-slip projections in the inclined temporary support groove.
  • the terminal is easily inserted into the cavity.
  • the retainer is pushed and rotated, the pair of anti-slip projections pass over a pair of full-locking projections and engage with the full-locking surface. This keeps the retainer in the full-locking position and prevents the terminal from falling out.
  • the rear groove forming surface of the main locking protrusion which forms one of the groove sides of the inclined temporary support groove, may be located forward of the main locking protrusion, and the temporary locking protrusion may be located forward of the rear edge of the rear groove forming surface in the extension direction of the cavity.
  • the space required for arranging the provisional locking protrusions and the full locking protrusions in the vertical direction can be reduced, contributing to the miniaturization of the connector.
  • the portion of the main locking protrusion rearward of the rear groove forming surface is formed on a retainer widening surface that protrudes from the outer side surface of the housing with increasing distance from the mounting opening, and the rear groove forming surface and the front groove forming surface of the temporary locking protrusion that forms the other groove side surface of the inclined temporary support groove may be oriented closer to perpendicular to the side surface of the housing than the retainer widening surface.
  • the anti-slip protrusion when the retainer is in the temporary mounting position, the anti-slip protrusion is held in an inclined position between the near-vertical rear groove forming surface and the near-vertical front groove forming surface. This makes it easy for the retainer to be held in an inclined position.
  • the anti-slip protrusion comes into contact with the retainer widening surface and pushes the pair of locking walls apart. This allows the anti-slip protrusion to pass over the main locking protrusion and be easily locked to the main locking protrusion.
  • the portion of the locking protrusion that enters the cavity when the retainer is in the temporary attachment position may be formed as an evacuation guide surface that moves away from the cavity toward the rear.
  • the locking protrusion when it comes into contact with the retraction guide surface of the locking protrusion when it is being inserted into the cavity, the locking protrusion is guided in a direction that retracts from within the cavity. This allows the terminal to be inserted smoothly into the cavity.
  • the retraction guide surface is a surface that faces the terminal in the direction in which the terminal is pushed into the cavity when the retainer is in the full installation position, and a retaining surface that prevents the terminal from being pulled out when the retainer is in the full installation position may be connected to the front side of the retraction guide surface.
  • the retainer is configured to rotate, so when the retainer is in the temporary attachment position, the anti-pullout surface is likely to enter the cavity.
  • the locking protrusion is guided in a direction retracting from within the cavity, and the anti-pullout surface is also likely to be guided in a direction retracting from the cavity. This allows the terminal to be inserted smoothly into the cavity.
  • the housing may include a retainer removal prevention receiving surface located behind the retainer located in the temporary mounting position and contacting the retainer from behind.
  • the retainer may be inclined with respect to the extension direction of the cavity when in the permanent installation position, and may have an inclined anti-removal surface facing rearward so as to face the retainer anti-removal receiving surface when in the temporary installation position, and the inclined anti-removal surface may come into contact with the retainer anti-removal receiving surface to prevent the retainer from falling out.
  • FIG. 1 is a perspective view showing a connector 20.
  • Figs. 2 and 3 are exploded perspective views showing the connector 20.
  • Fig. 4 is a partial cross-sectional view taken along line IV-IV in Fig. 1.
  • the electric wire 18 is indicated by a two-dot chain line.
  • Fig. 5 is a side view showing the connector 20 in a temporary attachment state.
  • Fig. 6 is a cross-sectional view showing the connector 20 in a temporary attachment state.
  • Fig. 6 is a cross-sectional view of the same location as line IV-IV.
  • Fig. 7 is a cross-sectional view taken along line VII-VII in Fig. 5, and Fig.
  • the temporary attachment position state is a state in which the retainer 80 is located at the temporary attachment position
  • the actual attachment state is a state in which the retainer 80 is located at the actual attachment position.
  • the connector 20 holds the terminals 10.
  • the terminal 10 is formed by pressing a metal plate.
  • the terminal 10 includes a coating crimping portion 11, a core crimping portion 12, and a terminal connection portion 13.
  • the coating crimping portion 11 is a portion that is crimped to the coating portion of the end of the electric wire 18.
  • the core crimping portion 12 is a portion that is crimped to the core portion exposed at the end of the electric wire 18.
  • the terminal connection portion 13 is a portion that is connected to the mating terminal, and is formed, for example, in a cylindrical shape.
  • the coating crimping portion 11, the core crimping portion 12, and the terminal connection portion 13 are aligned in this order in a straight line.
  • the coating crimping portion 11 and the terminal connection portion 13 are thicker than the core crimping portion 12. For this reason, when the terminal 10 is observed from the side, a recess 14 that is recessed in a part of the extension direction of the terminal 10 is formed on the core crimping portion 12 between the coating
  • the connector 20 holds multiple terminals 10. More specifically, multiple (e.g., two) terminals 10 are held in multiple stages (e.g., two stages). In each stage, multiple terminals 10 are lined up in a row in parallel. Note that the multiple terminals 10 may be terminals of the same size and material, or terminals of different sizes or materials. Note that the number of terminals 10 held by the connector 20 is arbitrary.
  • the connector 20 includes a housing 30 and a retainer 80.
  • the retainer 80 holds the multiple terminals 10 in at least one stage so that they do not come off the housing 30.
  • the connector 20 further includes a cover 60.
  • the cover 60 is attached to the housing 30 on the opposite side to the retainer 80.
  • the cover 60 holds the multiple terminals 10 in the other stages so that they do not come off the housing 30.
  • the terminal connection portion 13 side in the extension direction of the terminal 10 may be referred to as the front side, and the coating crimping portion 11 side as the rear side.
  • the cover 60 side may be referred to as the lower side, and the retainer 80 side as the upper side.
  • left and right directions may be referred to assuming a state in which one is standing on the cover 60 and facing the front.
  • the housing 30 is formed from resin or the like, and includes terminal accommodating portions 32, 42.
  • the housing 30 includes a lower terminal accommodating portion 32 and an upper terminal accommodating portion 42.
  • the lower terminal accommodating portion 32 has a cavity 34 that accommodates the terminal 10.
  • the lower terminal accommodating portion 32 has a plurality (two in this case) of cavities 34 arranged in parallel.
  • the upper terminal accommodating portion 42 has a cavity 44 that accommodates the terminal 10.
  • the upper terminal accommodating portion 42 has a plurality (two in this case) of cavities 44 arranged in parallel.
  • the retainer 80 combines with the upper terminal accommodating portion 42 to hold the terminal 10 in the upper cavity 44.
  • the terminal 10 is inserted into the cavity 44 before the retainer 80 is fully attached.
  • the retainer 80 is fully attached to the upper terminal accommodating portion 42. This prevents the terminal 10 from falling out of the upper cavity 44.
  • the back side of the insertion direction of the terminal 10 into the cavity 44 is the front side, and the opposite direction is the rear side.
  • the cover 60 combines with the lower terminal accommodating portion 32 to hold the terminal 10 in the lower cavity 34. In other words, before the cover 60 is attached to the lower terminal accommodating portion 32, the terminal 10 is set in the lower cavity 34. In this state, the cover 60 is attached to the lower terminal accommodating portion 32. This prevents the terminal 10 from falling out of the lower cavity 34.
  • this connector has the above-mentioned cover 60, or that it has terminals 10 held by the cover 60.
  • the retainer 80 is configured to be mountable to the housing 30 at a temporary mounting position and a permanent mounting position.
  • the permanent mounting is a mounting state in which the retainer 80 engages the terminal 10 so as to prevent the terminal 10 from coming off when the connector 20 is in use.
  • the temporary mounting is a state in which the retainer 80 is combined with the housing 30 and is in a form that can be handled as a single unit before the permanent mounting state is reached, and the terminal 10 can be inserted into the cavity 44.
  • the housing 30 and the retainer 80 can be stored and transported as one part, and can be provided to an operator who inserts the terminal 10.
  • the housing 30 has a partition plate portion 31 that separates the upper stage cavity 44 from the lower side.
  • the partition plate portion 31 is located between the lower terminal accommodating portion and the lower terminal accommodating portion, and separates the lower cavity 34 from the upper cavity 44.
  • the partition plate portion 31 can also be understood as a bottom plate located at the bottom of the upper stage cavity 44.
  • the housing 30 includes a pair of outer walls 43, 43 located on both sides of the housing 30.
  • the pair of outer walls 43, 43 extend upward from both sides of the partition plate portion 31.
  • the pair of outer walls 43, 43 are plate-shaped portions that are perpendicular to the partition plate portion 31 and extend along the extension direction of the cavity 44.
  • the pair of outer walls 43, 43 are also aligned with the protruding direction of the locking wall portion 84 described later.
  • the pair of outer walls 43, 43 are exposed to the left or right outside of the housing 30.
  • the housing 30 also includes an intermediate wall 42M between the pair of outer walls 43, 43, which separates the multiple cavities 44.
  • the pair of outer walls 43, 43 and the intermediate wall 42M are arranged in parallel with a gap in between in the width direction of the housing 30.
  • the front edge of the housing 30 is provided with a front plate portion 31F that extends in a direction perpendicular to the front-rear direction.
  • the front plate portion 31F is located at the front end of the cavity 44.
  • the terminal 10 arranged in the cavity 44 is restricted from moving forward by contacting the front plate portion 31F.
  • the front plate portion 31F is formed with a connection hole 31Fa into which a mating terminal (e.g., a male terminal having a long, thin plate portion or a pin-shaped portion) can be inserted.
  • the mating terminal can be connected to the terminal 10 in the cavity 44 through the connection hole 31Fa.
  • the upper terminal accommodating portion 42 is configured to include the upper portion of the partition plate portion 31, the pair of outer walls 43, 43, the intermediate wall 42M, the ceiling plate portion 43c, and the front plate portion 31F, and multiple cavities 44 are formed in the gaps between the pair of outer walls 43, 43 and the intermediate wall 42M.
  • the cavities 44 have a rear opening, and the terminals 10 are inserted into the cavities through the rear openings.
  • the housing 30 has an attachment opening 45 into which the retainer 80 is attached.
  • a partially open mounting opening 45 is formed in the middle of the extension direction of the cavity 44 in the ceiling plate portion 43c of the housing 30.
  • the housing 30 includes a pair of temporary locking projections 46 and a pair of full locking projections 48 that protrude from both outer sides of the housing 30.
  • the pair of temporary locking projections 46 are located closer to the mounting opening 45 than the pair of full locking projections 48. Therefore, the retainer 80 that is mounted on the housing 30 from the mounting opening 45 side can be temporarily locked to the pair of temporary locking projections 46, and then fully locked to the pair of full locking projections 48.
  • the portion of the pair of outer walls 43, 43 that corresponds to the mounting opening 45 is recessed more than the other portions.
  • the bottom surface of the recessed portion of the outer walls 43, 43 is part of the outer surface of the outer wall 43, and the provisional locking protrusion 46 and the full locking protrusion 48 are formed on this bottom surface.
  • the locking protrusion 48 is formed in a long convex shape along the front-to-rear direction. It is preferable that the length of the locking protrusion 48 is as large as possible within the recessed portion of the outer walls 43, 43, and is, for example, at least half the front-to-rear length of the mounting opening 45.
  • the temporary locking protrusion 46 is formed in a convex shape that is spaced apart above the full locking protrusion 48.
  • the front-to-back length of the temporary locking protrusion 46 may be smaller than the front-to-back length of the full locking protrusion 48.
  • the temporary locking protrusion 46 is located above the front end of the full locking protrusion 48.
  • the front-to-back length of the temporary locking protrusion 46 is less than half the front-to-back length of the full locking protrusion 48.
  • the retainer 80 can be attached to the housing 30 in a temporary attachment position and a permanent attachment position.
  • the retainer 80 includes a locking protrusion 83 that can be locked onto the terminal 10 housed in the cavity 44.
  • the locking protrusion 83 When the retainer 80 is attached in the temporary attachment position, the locking protrusion 83 is retracted from the cavity 34.
  • the locking protrusion 83 being retracted from the cavity 44 means that the position of the locking protrusion 83 in the temporary attachment state is located farther from the center of the cavity 44 than the position of the locking protrusion 83 in the actual attachment state. Therefore, when the retainer 80 is attached in the temporary attachment position, a part of the locking protrusion 83 may enter the cavity 44. In other words, it is sufficient that the locking protrusion 83 in the temporary attachment state is less likely to hinder the insertion of the terminal 10 into the cavity 44 than the locking protrusion 83 in the actual attachment state.
  • the retainer 80 can be rotated from the temporary mounting position to the actual mounting position.
  • the retainer 80 rotates within a predetermined range around an axis perpendicular to the extension direction of the cavity 44 (around an axis in the left-right direction in this case).
  • the locking protrusion 83 protrudes into the cavity 44 through the mounting opening 45 and can be locked to the terminal 10 in the cavity 44.
  • the retainer 80 comprises a retainer body 82, a pair of locking walls 84, and a pair of anti-pullout protrusions 85.
  • the retainer body 82 is formed in a plate shape, here a rectangular plate shape, large enough to collectively cover the mounting openings 45 corresponding to the multiple cavities 44.
  • the retainer body 82 is attached to the mounting openings 45 so as to cover the upper openings of the multiple cavities 44.
  • a locking protrusion 83 is formed on the retainer body 82.
  • multiple locking protrusions 83 are formed in parallel to correspond to multiple cavities 44.
  • the locking protrusions 83 are formed in the middle of the extension direction of the cavity 44, more specifically, in the area where the core wire crimping portion 12 is located in the extension direction of the cavity 44. Then, when the retainer body 82 is attached to the attachment opening 45, the locking protrusion 83 can protrude into the cavity 44. In this state, the locking protrusion 83 can fit into the recess 14 between the insulation crimping portion 11 and the terminal connection portion 13 of the terminal 10 in the cavity 44. This positions the terminal 10 in its extension direction, and prevents it from slipping out backwards.
  • the pair of locking walls 84 extend from both sides of the retainer body 82 to both sides of the housing 30, here along the outer surfaces of the pair of outer walls 43, 43.
  • a pair of anti-slip protrusions 85 are formed on the inner surface of the pair of locking walls 84 at a position near the tip.
  • the anti-slip protrusions 85 are elongated protrusions protruding from the inner surface of the locking wall 84. In this mounted state, the anti-slip protrusions 85 are aligned along the extension direction of the cavity 44.
  • the tip edge of the locking wall 84 is aligned along the extension direction of the cavity 44 in this mounted state, and the anti-slip protrusions 85 are aligned along the tip edge of the locking wall 84.
  • the anti-slip protrusions 85 are formed in a shape including a guide surface 85f whose protruding dimension gradually decreases toward the tip side of the locking wall 84 (see Figures 3 and 8).
  • the pair of locking walls 84 can be locked to the pair of temporary locking protrusions 46 or the pair of full locking protrusions 48.
  • the retainer 80 is supported so as to be movable along an inclined direction that is inclined with respect to the extension direction of the cavity 44.
  • the inclined direction is a direction that moves away from the cavity 44 as it moves toward the rear along the extension direction of the cavity 44. Since the retainer 80 is supported so as to be movable along the inclined direction, if the terminal 10 interferes with the locking protrusion 83 when the terminal 10 is inserted into the cavity 44, the retainer 80 can be moved rearward to eliminate the interference between the terminal 10 and the locking protrusion 83.
  • an inclined temporary support groove 90 extending along the inclined direction is formed between the temporary locking protrusion 46 and the full locking protrusion 48.
  • the groove width of the inclined temporary support groove 90 is approximately the same as or greater than the width of the anti-pullout protrusion 85, to the extent that the anti-pullout protrusion 85 can be supported along the inclined direction.
  • One groove side of the inclined temporary support groove 90 is the front groove forming surface 46f1, and the other groove side is the rear groove forming surface 48f1.
  • the front groove forming surface 46f1 is the lower side of the temporary locking protrusion 46 that is farther from the mounting opening 45.
  • the rear groove forming surface 48f1 is the upper side of the main locking protrusion 48 that is closer to the mounting opening 45.
  • the rear groove forming surface 48f1 is located toward the front of the main locking protrusion 48.
  • the rear groove forming surface 48f1 is formed to extend from the front edge of the main locking protrusion 48 rearward over an area of 1/2 to 3/4.
  • the rear groove forming surface 48f1 extends forward and gradually slopes downward with respect to the portion of the main locking protrusion 48 that continues rearward from the rear groove forming surface 48f1.
  • the portion of the main locking protrusion 48 rearward of the rear groove forming surface 48f1 is formed as a retainer widening surface 48f2.
  • the retainer widening surface 48f2 is formed as a slope whose protruding length from the outer surface of the housing 30 increases the further it gets from the mounting opening 45 (see FIG. 8).
  • the downward surface of the main locking protrusion 48 opposite the mounting opening 45 is formed as a main locking surface 48f3 that engages with the anti-slip protrusion 85 to keep the retainer 80 in the main mounting position (see FIGS. 7 and 8).
  • the retainer spreading surface 48f2 and the main locking surface 48f3 are formed in a shape that extends along the extension direction of the cavity 44. Therefore, when the main locking protrusion 48 is viewed from the side, the portion where the retainer spreading surface 48f2 is formed is a continuous portion of the same width, and the upper portion of the front portion where the rear groove forming surface 48f1 is formed has a shape that slopes diagonally downward toward the front.
  • the anti-slip protrusion 85 comes into contact with the retainer widening surface 48f2. Then, by pushing the retainer 80, the anti-slip protrusion 85 rides up onto the retainer widening surface 48f2, and the locking wall portion 84 elastically deforms and spreads outward. When the anti-slip protrusion 85 rides below the main locking protrusion 48, the locking wall portion 84 elastically returns to its original shape, and the anti-slip protrusion 85 can be fully locked from below to the main locking surface 48f3 of the main locking protrusion 48.
  • the temporary locking protrusion 46 is located forward of the rear edge of the rear groove forming surface 48f1 in the extension direction of the cavity 44. In other words, when the full locking protrusion 48 is viewed from the side, the temporary locking protrusion 46 is located above the portion that extends diagonally downward toward the front. In other words, the space of the full locking protrusion 48 that slopes diagonally downward can be effectively used to provide space for the anti-pullout protrusion 85 for temporary locking.
  • the front edge of the temporary locking protrusion 46 may be located behind or in front of the front edge of the full locking protrusion 48. In this embodiment, the front edge of the temporary locking protrusion 46 is located in front of the front edge of the full locking protrusion 48.
  • the provisional locking protrusion 46 may extend rearward beyond the rear edge of the rear groove forming surface 48f1 in the extension direction of the cavity 44. In this case, from the viewpoint of strength, it is preferable to extend the provisional locking protrusion 46 rearward while increasing its vertical dimension. From the viewpoint of achieving further miniaturization, it is preferable that the provisional locking protrusion 46 be located forward of the rear edge of the rear groove forming surface 48f1.
  • the rear groove forming surface 48f1 and the front groove forming surface 46f1 are preferably closer to being perpendicular to the outer surface of the outer wall 43, which is the side surface of the housing 30, than the retainer spreading surface 48f2.
  • the rear groove forming surface 48f1 and the front groove forming surface 46f1 are perpendicular to the outer surface of the outer wall 43 (see FIG. 7), but may be inclined relative to the outer surface.
  • the anti-pullout protrusion 85 is likely to be maintained in a state in which it is supported along the inclined temporary support groove 90.
  • the rear portion of the retainer 85 can easily overcome the retainer widening surface 48f2 while the front end of the retainer 85 is prevented from falling out by the front groove forming surface 46f1, and the retainer 80 can easily rotate around the front end of the retainer 85.
  • the front end of the main locking protrusion 48 can be prevented from becoming too thin.
  • the locking wall portion 84 of the retainer 80 abuts against the front wall of the recess formed in the outer wall 43, restricting the forward movement of the retainer 80.
  • a part of the locking protrusion 83 may protrude into the cavity 44 through the attachment opening 45 (see FIG. 6).
  • the inserted terminal 10 may come into contact with the locking protrusion 83 and cause the retainer 80 to move backward.
  • the portion of the locking protrusion 83 that enters the cavity 44 when the retainer 80 is in the temporary mounting position may have a retreat guide surface 83f1 that moves away from the cavity 44 as it moves rearward.
  • the forward portion of the tip surface of the locking protrusion 83 is the retreat guide surface 83f1.
  • the retreat guide surface 83f1 is a surface that faces the terminal 10 from the direction (above) in which the terminal 10 is pushed into the cavity 44 when the retainer 80 is in the actual mounting position.
  • the retreat guide surface 83f1 is formed on a surface that is along the extension direction of the pull-out prevention protrusion 85. In the actual mounting state, the retreat guide surface 83f1 is along the extension direction of the cavity 44. In the temporary mounting state, the retreat guide surface 83f1 is along the inclined direction that is the extension direction of the pull-out prevention protrusion 85, and the tip of the retreat guide surface 83f1 enters the cavity 44 while facing rearward.
  • the tip of the terminal 10 comes into contact with the retreat guide surface 83f1.
  • the tip of the terminal 10 then pushes the retreat guide surface 83f1 outward from the cavity 44.
  • the locking protrusion 83 has a retaining surface 83f2 that is continuous with the retraction guide surface 83f1.
  • the retaining surface 83f2 is connected to the front side of the retraction guide surface 83f1 and is a surface that prevents the terminal 10 from being pulled out when the retainer 80 is in the main mounting position. It is preferable that the retaining surface 83f2 is a surface that is perpendicular to the extension direction of the cavity 44, but this is not essential.
  • the retainer 80 is configured to rotate around the front end, so that in the temporary attachment state, the anti-pullout surface 83f2 is likely to be positioned so as to enter the cavity 44.
  • the retreat guide surface 83f1 that faces the anti-pullout surface 83f2 can smoothly guide the locking protrusion 83 in the direction of retreating from the cavity 44 when the terminal 10 is inserted.
  • the housing 30 is located behind the retainer 80 in the temporary mounting position and includes a retainer pull-out prevention receiving surface 43f that can contact the retainer 80 from behind.
  • the retainer pull-out prevention receiving surface 43f is the rear surface of the recess in the outer wall 43, and faces the front.
  • the retainer pull-out prevention receiving surface 43f is a surface perpendicular to the extension direction of the cavity 44.
  • the retainer pull-out prevention receiving surface 43f can contact the rear of the locking wall portion 84 of the retainer 80 to prevent the retainer 80 from slipping out rearward.
  • the retainer 80 has an inclined anti-slip surface 84f that is inclined with respect to the extension direction of the cavity 44 when in the permanent installation position, and faces rearward to face the retainer anti-slip receiving surface 43f when in the temporary installation position.
  • the inclined anti-slip surface 84f is formed as an inclined surface that slopes downward toward the front in the permanent installation state. It is preferable that the inclined anti-slip surface 84f be as parallel as possible to the retainer anti-slip receiving surface 43f in the temporary installation state, but this is not essential.
  • the inclined anti-slip surface 84f comes into contact with the retainer anti-slip receiving surface 43f, restricting rearward movement.
  • the retainer 80 is guided by the inclined temporary support groove 90, and in an allowable inclined position, the inclined anti-slip surface 84f can come into surface contact with the retainer anti-slip receiving surface 43f. This allows the retainer 80 to maintain a stable inclined position even when it has moved backward. Therefore, after the terminal 10 is inserted, the retainer 80 can stably move back forward.
  • the retainer 80 is prepared with a temporary attachment to the housing 30 (see Figures 5 to 8).
  • the retainer 80's anti-slip protrusion 85 is fitted into the inclined temporary support groove 90 and is supported in an inclined position relative to the housing 30.
  • the anti-slip protrusion 85 passes forward over the permanent locking protrusion 48.
  • the anti-slip protrusion 85 can move within the inclined temporary support groove 90 along the inclination direction of the inclined temporary support groove 90. Therefore, the retainer 80 can move backward in an inclined position until the inclined anti-slip surface 84f contacts the retainer anti-slip receiving surface 43f.
  • the front end of the locking protrusion 83 protrudes into the cavity 44 (see Figure 6), and the front end of the evacuation guide surface 83f1 faces diagonally backward within the cavity 44.
  • the terminal 10 is inserted into the cavity 44 from the rear opening of the cavity 44. Then, the tip of the terminal 10 comes into contact with the retreat guide surface 83f1 of the locking protrusion 83. When the terminal 10 moves further inward, the tip of the terminal 10 pushes the retreat guide surface 83f1 outward and rearward of the cavity 44 (see Figures 9 and 10). This causes the retainer 80 to move in a direction away from the cavity 44 along the inclination direction of the inclined temporary support groove 90. Then, the terminal 10 can move further inward within the cavity 44. When the terminal 10 is inserted into the cavity 44 until it hits the inner surface of the front plate portion 31F, the recess 14 of the terminal 10 is positioned inside the mounting opening 45.
  • the retainer 80 may return to its original position by its own weight, or may be returned to its original position manually by an operator.
  • the front end of the locking protrusion 83 enters the cavity 44. This allows the retaining surface 83f2 of the locking protrusion 83 to hook onto the rear end of the terminal connection portion 13, preventing the terminal 10 from falling out when the retainer 80 rotates to the main mounting position.
  • the retainer 80 is pushed toward the mounting opening 45. It is preferable that the rear end of the retainer 80 is pushed into the mounting opening 45.
  • the guide surface 85f of the anti-slip protrusion 85 is pressed against the retainer widening surface 48f2 of the main locking protrusion 48, causing the locking wall portion 84 to widen outward along the slope of the retainer widening surface 48f2.
  • the front end of the anti-slip protrusion 85 is engaged with the front groove forming surface 46f1, so it is difficult to move upward. Therefore, the retainer 80 can rotate around the front end of the anti-slip protrusion 85.
  • the front groove forming surface 46f1 is closer to being perpendicular to the outer surface of the outer wall 43 than the retainer widening surface 48f2. Therefore, the rear end of the anti-slip protrusion 85 can easily climb over the main locking protrusion 48 when it comes into contact with the retainer widening surface 48f2, but the rear end of the anti-slip protrusion 85 has difficulty climbing over the front groove forming surface 46f1. This allows the retainer 80 to rotate more reliably around the front end of the anti-slip protrusion 85.
  • the anti-slip projection 85 When the anti-slip projection 85 passes over the main locking projection 48, the anti-slip projection 85 engages with the main locking surface 48f3 of the main locking projection 48. This causes the retainer 80 to be fully attached to the housing 30 with the retainer 80 positioned in the main attachment position.
  • the configuration for movably supporting the retainer 80 can be made smaller than a configuration in which the retainer moves in a direction perpendicular to the longitudinal direction of the terminal to position the terminal.
  • a space is secured on the side surface of the housing in which the retaining protrusion can move in parallel.
  • the retainer 80 is supported so that it can move in the inclined direction at the temporary attachment position. Therefore, when the terminal 10 comes into contact with the locking protrusion 83 during insertion, the locking protrusion 83 can move away from the cavity 44, allowing the terminal 10 to be inserted smoothly.
  • the pair of anti-slip protrusions 85 are positioned in the inclined temporary support groove 90, so that the retainer 80 is held in the temporary mounting position. In this state, the terminal 10 can be easily inserted into the cavity 44.
  • the pair of anti-slip protrusions 85 pass over the pair of full-locking protrusions 48 and engage with the full-locking surface 48f3. This allows the retainer 80 to be held in the full-locking position, easily realizing a configuration that prevents the terminal 10 from being pulled out.
  • the rear groove forming surface 48f1 is located toward the front of the full-locking protrusion 48, and the temporary-locking protrusion 46 is located forward of the rear edge of the rear groove forming surface 48f1. This allows the arrangement space between the temporary-locking protrusion 46 and the full-locking protrusion 48 in the vertical direction to be reduced, which contributes to the miniaturization of the connector 20.
  • the anti-slip protrusion 85 fits between the near-vertical rear groove forming surface 48f1 and the front groove forming surface 46f1. This makes it easier for the retainer 80 to be held in an inclined position more reliably.
  • the anti-slip protrusion 85 comes into contact with the retainer widening surface 48f2, pushing the pair of locking walls 84 apart. This allows the anti-slip protrusion 85 to pass over the main locking protrusion 48 and be easily locked to the main locking protrusion 48.
  • an evacuation guide surface 83f1 is formed on the locking protrusion 83. Therefore, when the terminal 10 contacts the evacuation guide surface 83f1 of the locking protrusion 83 when the terminal 10 is inserted into the cavity 44, the locking protrusion 83 is guided in a direction to retract from within the cavity 44. This allows the terminal 10 to be smoothly inserted into the cavity 44.
  • the anti-pullout surface 83f2 is connected to the front side of the evacuation guide surface 83f1. Because the retainer 80 is configured to rotate, the anti-pullout surface 83f2 is likely to enter the cavity 44 when the retainer 80 is in the temporary attachment position. In such a case, when the terminal 10 comes into contact with the evacuation guide surface 83f1 of the locking protrusion 83 when inserting the terminal 10 into the cavity 44, the locking protrusion 83 is guided in a direction to retract from within the cavity 44, and the anti-pullout surface 83f2 is also likely to be guided in a direction to retract from the cavity 44. This allows the terminal 10 to be smoothly inserted into the cavity 44.
  • the anti-slip surface 83f2 also helps prevent the terminal 10 from slipping out backwards while the retainer 80 is being rotated.
  • the housing 30 includes an inclined anti-slip surface 84f, which prevents the retainer 80 from slipping out rearward from the temporary attachment position.
  • the retainer 80 also has an inclined anti-slip surface 84f.
  • the inclined anti-slip surface 84f comes into contact with the retainer anti-slip receiving surface 43f, so that the retainer 80 in the prevented-slip state is stably maintained in an inclined position. This makes it easier for the anti-slip protrusion 85 to remain aligned with the inclined temporary support groove 90. This allows the retainer 80 to move smoothly back to its original position later.
  • the configuration for rotatably supporting the retainer 80 is not limited to the above example.
  • a convex portion may be formed on one of a pair of locking walls of the retainer and a pair of outer surfaces of the housing, and a concave portion into which the convex portion fits may be formed on the other of the pair of locking walls of the retainer and the pair of outer surfaces of the housing, and the convex portion may be rotatably fitted into the concave portion, thereby allowing the retainer to rotate relative to the housing.

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  • Connector Housings Or Holding Contact Members (AREA)
PCT/JP2023/033538 2022-10-03 2023-09-14 コネクタ Ceased WO2024075489A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380066720.5A CN119895670A (zh) 2022-10-03 2023-09-14 连接器
US19/113,424 US20260088553A1 (en) 2022-10-03 2023-09-14 Connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-159288 2022-10-03
JP2022159288A JP2024053191A (ja) 2022-10-03 2022-10-03 コネクタ

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WO2024075489A1 true WO2024075489A1 (ja) 2024-04-11

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US (1) US20260088553A1 (https=)
JP (1) JP2024053191A (https=)
CN (1) CN119895670A (https=)
WO (1) WO2024075489A1 (https=)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001185276A (ja) * 1999-12-27 2001-07-06 Yazaki Corp リヤホルダ付きコネクタ及びその製造方法
JP2005005100A (ja) * 2003-06-11 2005-01-06 Sumitomo Wiring Syst Ltd コネクタ
JP2007305473A (ja) * 2006-05-12 2007-11-22 Sumitomo Wiring Syst Ltd コネクタ
JP2010102946A (ja) * 2008-10-23 2010-05-06 Yazaki Corp コネクタ
JP2018200781A (ja) * 2017-05-26 2018-12-20 矢崎総業株式会社 コネクタ
CN211017512U (zh) * 2019-12-20 2020-07-14 涌讯电子科技(上海)有限公司 一种电连接器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001185276A (ja) * 1999-12-27 2001-07-06 Yazaki Corp リヤホルダ付きコネクタ及びその製造方法
JP2005005100A (ja) * 2003-06-11 2005-01-06 Sumitomo Wiring Syst Ltd コネクタ
JP2007305473A (ja) * 2006-05-12 2007-11-22 Sumitomo Wiring Syst Ltd コネクタ
JP2010102946A (ja) * 2008-10-23 2010-05-06 Yazaki Corp コネクタ
JP2018200781A (ja) * 2017-05-26 2018-12-20 矢崎総業株式会社 コネクタ
CN211017512U (zh) * 2019-12-20 2020-07-14 涌讯电子科技(上海)有限公司 一种电连接器

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CN119895670A (zh) 2025-04-25
US20260088553A1 (en) 2026-03-26
JP2024053191A (ja) 2024-04-15

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