Connector

Abstract

To provide a connector capable of suppressing transmission of vibration from an electric wire to a terminal.SOLUTION: A connector according to one embodiment includes a housing, a shell, and a holder. The housing includes a terminal supporting portion for supporting a terminal and a wire accommodating portion through which a wire connected to the terminal is passed. The shell is fit on an outer side of the wire accommodating portion from a side opposite to the terminal supporting portion. The holder is configured to hold the wire and fit inside the wire accommodating portion. The wire accommodating portion includes a press-fit portion to be press-fit between the shell and the holder.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to a connector. [Background technology]

[0002] The connector includes a housing that holds terminals to be connected to electric wires, and a holder that holds the electric wires and is assembled to the housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-140572 [Patent Document 2] Japanese Patent Application Publication No. 2024-047725 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional connector, it is desirable to suppress the transmission of vibration from the wire to the terminal.

[0005] One embodiment provides a connector that can suppress transmission of vibration from an electric wire to a terminal. [Means for solving the problem]

[0006] In one embodiment, the connector includes a housing, a shell, and a holder. The housing has a terminal support portion that supports a terminal and a wire accommodating portion through which an electric wire connected to the terminal passes. The shell fits onto the outside of the wire accommodating portion from the side opposite the terminal support portion. The holder holds the electric wire and fits into the wire accommodating portion. The wire accommodating portion includes a press-fit portion that is press-fitted between the shell and the holder. [Effects of the Invention]

[0007] According to one embodiment, it is possible to suppress transmission of vibration from the electric wire to the terminal. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a connector 1 of an embodiment. [Figure 2] 1 is an exploded perspective view showing a connector 1 according to an embodiment. [Figure 3] 1 is a plan view showing a connector 1 according to an embodiment. [Figure 4] 1 is a cross-sectional view showing a connector 1 according to an embodiment. [Figure 5] FIG. 2 is a perspective view showing a housing 10 according to the embodiment. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 3. [Figure 7] FIG. 2 is a perspective view showing a rear holder 60 according to the embodiment. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3 . [Figure 9] 9 is a cross-sectional view taken along line IX-IX in FIG. 3. [Figure 10] An enlarged view of part X in Figure 9. [Figure 11] An enlarged view of part XI in Figure 4. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the drawings. In the following description, components having the same or similar functions are denoted by the same reference numerals.

[0010] In this application, terms are defined as follows: "Connection" is not limited to mechanical connection and can include electrical connection. In other words, "connection" is not limited to direct connection between two elements to be connected, but can include connection between two elements via another element. "Restrict" is not limited to cases where two members are constantly in contact with each other, thereby restricting movement of one of the two members relative to the other. "Restrict" can also include cases where, for example, two members are not in contact when there is no misalignment, but when one of the two members attempts to misalign with the other, the two members come into contact, thereby restricting movement of one of the two members relative to the other. "Restrict" also means that movement in at least one direction is restricted.

[0011] In the following, a right-handed XYZ coordinate system shown in each drawing will be defined. The X direction, Y direction, and Z direction are defined as follows: The X direction is the mating direction of the connector 1 and the mating connector. The +X direction is the direction from the connector 1 to the mating connector. The Y direction is a direction intersecting the X direction (a direction perpendicular to the X direction in this embodiment) and is the direction in which terminals 40, described later, are arranged. The Z direction is a direction intersecting the X and Y directions (a direction perpendicular to the X direction in this embodiment). The X direction is an example of a "first direction." For convenience of explanation, the +X direction may be referred to as the "front side" and the -X direction as the "rear side" in the following.

[0012] (Embodiment) The connector 1 of the embodiment is a connecting part for electrically connecting an electric wire 41 and a terminal fitting provided on a mating connector (not shown). For example, the connector 1 is a connector 1 used in vehicles such as an EV (Electric Vehicle), HEV (Hybrid Electric Vehicle), or PHEV (Plug-in Hybrid Electric Vehicle). The connector 1 is a high-voltage connector through which a current of, for example, 100 V or more flows. However, the connector 1 may also be a low-voltage connector. In this embodiment, the connector 1 is a connector 1 compatible with three electrodes. However, the connector 1 may be a connector 1 compatible with two or fewer electrodes, or a connector 1 compatible with four or more electrodes.

[0013] Fig. 1 is a perspective view showing a connector 1 of an embodiment, Fig. 2 is an exploded perspective view showing the connector 1 of an embodiment, and Fig. 3 is a plan view showing the connector 1 of an embodiment. 1 to 3, the connector 1 includes a housing 10, terminals 40, a shell 50, and a rear holder 60. The rear holder 60 is an example of a "holder."

[0014] The housing 10 is a component that is coupled to a mating connector. For example, the housing 10 is made of synthetic resin. The housing 10 has insulating properties. The housing 10 includes a front portion 11 that supports the terminals 40, and an electric wire accommodating portion 21 through which the electric wires 41 connected to the terminals 40 pass. The front portion 11 is an example of a "terminal support portion."

[0015] The front portion 11 is a portion of the housing 10 that is coupled to a mating connector. The front portion 11 includes a terminal accommodating portion 13 that accommodates the terminal 40, and a hood portion 12 that covers the terminal accommodating portion 13. Note that the shape of the front portion 11 described below is an example, and the shape of the front portion is not particularly limited.

[0016] FIG. 4 is a cross-sectional view showing the connector 1 of the embodiment, taken along line IV-IV in FIG. As shown in Figures 2 and 4, the hood portion 12 is formed in a cylindrical shape with a bottom, having peripheral and bottom walls, and is open in the +X direction for connection with a mating connector. The hood portion 12 is an elliptical cylindrical shape with a major axis along the Y direction. In this embodiment, the ellipse may be interpreted as an ellipse. An annular seal member can be attached to the outer periphery of the hood portion 12.

[0017] The terminal accommodating portions 13 support the terminals 40 so that they cannot be displaced relative to each other. The same number of terminal accommodating portions 13 as the terminals 40 are provided, and each holds one terminal 40. The terminal accommodating portions 13 are lined up in the Y direction inside the hood portion 12. The terminal accommodating portions 13 are cylindrical and extend in the X direction. The terminal accommodating portions 13 are rectangular cylindrical. The terminal accommodating portions 13 penetrate the bottom wall of the hood portion 12. The terminals 40 are disposed inside the terminal accommodating portions 13. The interior of the terminal accommodating portions 13 is open in the +X direction for connection of the terminals 40 with terminals 40 of a mating connector. The interior of the terminal accommodating portions 13 is also open in the -X direction for drawing the electric wire 41 rearward from the front portion 11. The terminal 40, connected to the electric wire 41, is inserted into the terminal accommodating portion 13 in the +X direction through the electric wire accommodating portion 21. The terminal 40 is locked in the terminal accommodating portion 13 by the spacer 14. The spacers 14 are arranged so as to fill gaps in the Y direction between the terminals 40 and the side walls on both sides in the Y direction of the terminal accommodating portion 13 .

[0018] FIG. 5 is a perspective view showing the housing 10 of the embodiment. 4 and 5, the wire accommodating portion 21 protrudes in the −X direction from the front portion 11. The wire accommodating portion 21 includes a cylindrical portion 22, an outer coupling portion 23, and an inner coupling portion 24.

[0019] The cylindrical portion 22 extends in the X direction. A plurality of (three in this embodiment) cylindrical portions 22 are provided in one-to-one correspondence with the electric wires 41. The plurality of cylindrical portions 22 are lined up in the Y direction. The cylindrical portions 22 are connected to the -X direction end of the terminal accommodating portion 13. The interior of the cylindrical portion 22 is in communication with the interior of the terminal accommodating portion 13. The electric wire 41 passes through the inside of the cylindrical portion 22. The opening in the -X direction of the cylindrical portion 22 is an outlet through which the electric wire 41 is drawn out to the outside of the housing 10. When assembling the terminal 40 to the housing 10, the terminal 40 connected to the electric wire 41 is inserted into the opening in the -X direction of the cylindrical portion 22.

[0020] The outer connecting portion 23 is formed in a plate shape extending along the XY plane. The outer connecting portion 23 connects a pair of adjacent cylindrical portions 22. The outer connecting portion 23 is arranged to cover the space between the pair of adjacent cylindrical portions 22 from the outside in the Z direction. That is, two outer connecting portions 23 are provided for each pair of adjacent cylindrical portions 22, and in this embodiment, four outer connecting portions 23 are provided. The outer connecting portion 23 extends in the -X direction from the bottom wall portion of the hood portion 12. Both side edges of the outer connecting portion 23 in the Y direction extend in the X direction and are connected to the outer peripheral surface of the cylindrical portion 22 along its entire length. The -X direction edge of the outer connecting portion 23 extends in the Y direction and is located at the same position in the X direction as the -X direction end of the cylindrical portion 22.

[0021] The inner connecting portion 24 connects a pair of adjacent cylindrical portions 22. The inner connecting portion 24 is disposed between a pair of outer connecting portions 23 adjacent in the Z direction. Two inner connecting portions 24 are provided for each pair of adjacent cylindrical portions 22, and in this embodiment, four inner connecting portions 24 are provided. The two inner connecting portions 24 are adjacent to each other with a gap in the Z direction between each pair of adjacent cylindrical portions 22. There is a gap in the Z direction between the two inner connecting portions 24 and the outer connecting portions 23. The inner connecting portion 24 extends in the -X direction from the bottom wall portion of the hood portion 12. Both side edges of the inner connecting portion 24 in the Y direction extend in the X direction and are joined to the outer peripheral surface of the cylindrical portion 22 along its entire length. The -X direction edge of the inner connecting portion 24 extends in the Y direction and is located at the same position in the X direction as the -X direction end of the outer connecting portion 23.

[0022] 5, the entire wire accommodating portion 21 is formed in the shape of an elliptical cylinder having a major axis along the Y direction. The wire accommodating portion 21 has an outer peripheral wall portion 25 that forms the outer peripheral surface of the wire accommodating portion 21. The outer peripheral wall portion 25 is formed by the outer coupling portion 23 and a part of the cylindrical portion 22.

[0023] As shown in FIG. 4 , the electric wire 41 has a first end 41a directly connected to the terminal 40 inside the housing 10. At the first end 41a of the electric wire 41, a core wire of the electric wire 41 is fastened to the terminal 40. The core wire of the electric wire 41 is fastened to the terminal 40 by crimping. However, the core wire of the electric wire 41 may be connected to the terminal 40 by a method other than crimping. The electric wire 41 extends from the first end 41a in the −X direction inside the cylindrical portion 22 and is drawn out to the outside of the housing 10. A grommet may be attached to the electric wire 41. The grommet is disposed inside the cylindrical portion 22. The grommet is in close contact with both the outer circumferential surface of the electric wire 41 and the inner circumferential surface of the cylindrical portion 22 over the entire circumference.

[0024] The shell 50 is fixed to the housing 10 and is formed so as to be fixable to a mating connector. The shell 50 is provided so as to cover the electric wire accommodating portion 21. The shell 50 fits onto the outside of the electric wire accommodating portion 21 from the opposite side (-X direction) of the front portion 11. The +X direction is the assembly direction of the shell 50 to the electric wire accommodating portion 21. The shell 50 includes a surrounding portion 51 and a flange portion 52.

[0025] The surrounding portion 51 is disposed around the entire outer periphery of the outer peripheral wall portion 25 of the wire accommodating portion 21. The surrounding portion 51 is formed in the shape of an elliptical cylinder having a major axis along the Y direction corresponding to the shape of the outer peripheral wall portion 25. The inner peripheral surface of the surrounding portion 51 is close to the outer peripheral surface of the outer peripheral wall portion 25. The -X direction edge of the surrounding portion 51 is located at approximately the same position in the X direction as the -X direction edge of the outer peripheral wall portion 25. The -X direction edge of the surrounding portion 51 may be located further in the -X direction than the -X direction edge of the wire accommodating portion 21 in the X direction. The surrounding portion 51 is disposed from the periphery of the wire accommodating portion 21 to the periphery of the front portion 11.

[0026] As shown in Figures 2 and 4, flange portion 52 protrudes outward from the +X-direction edge of surrounding portion 51 in a direction perpendicular to the X-direction. Flange portion 52 extends around the entire periphery of surrounding portion 51. Screw holes through which screws are inserted are formed in flange portion 52. The screws are threaded into the mating connector or a member surrounding the mating connector. In other words, flange portion 52 is fastened to the mating connector or a member surrounding the mating connector.

[0027] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 3 and 6, the shell 50 and the housing 10 have first engagement portions 80 that engage with each other. A plurality of first engagement portions 80 are provided in the Z direction and a plurality of first engagement portions 80 are provided in the Y direction. The first engagement portions 80 include a first locking lance 81 provided in the housing 10 and a first locking recess 82 provided in the shell 50.

[0028] As shown in FIG. 5 , the first locking lance 81 is provided on the outer peripheral wall 25 of the wire accommodating portion 21 of the housing 10. The first locking lance 81 is a portion between a pair of notches extending in the +X direction from the −X direction edge of the outer coupling portion 23, and is formed in the shape of a cantilever with the +X direction end as a base end (fixed end). The first locking lance 81 is formed in the shape of a plate having a thickness in the Z direction. The first locking lance 81 can bend in the Z direction. The first locking lance 81 has a first lance protrusion 83. The first lance protrusion 83 is provided at the tip of the first locking lance 81. The first lance protrusion 83 protrudes outward from the outer peripheral wall 25 toward the surrounding portion 51 when viewed in the X direction. The first lance protrusion 83 protrudes outward in the Z direction from the outer peripheral wall 25. The first lance projections 83 are elastically displaceable inward so as to move away from the surrounding portion 51 when the first locking lance 81 is bent in the Z direction.

[0029] As shown in FIGS. 3 and 6 , the first locking recess 82 is provided in the surrounding portion 51 of the shell 50. The first locking recess 82 opens to the inner circumferential surface of the surrounding portion 51. The first locking recess 82 is formed in a position facing the first lance protrusion 83 on the inner circumferential surface of the surrounding portion 51. In this embodiment, the first locking recess 82 penetrates the surrounding portion 51 in the thickness direction of the surrounding portion 51 and opens to the edge of the surrounding portion 51 in the −X direction. When the housing 10 and the shell 50 are fully fitted together, the first lance protrusion 83 fits into the first locking recess 82. The opening edge of the first locking recess 82 engages with the first lance protrusion 83 from the +X direction, thereby restricting movement of the shell 50 in the −X direction relative to the housing 10.

[0030] FIG. 7 is a perspective view showing the rear holder 60 of the embodiment. 4 and 7, the rear holder 60 holds the flexible electric wire 41. The rear holder 60 is arranged in the housing 10 and the shell 50 so as not to be displaceable relative to each other. The rear holder 60 fits inside the electric wire accommodating portion 21 and is directly fixed to the housing 10. The rear holder 60 includes a closing portion 61 and an insertion portion 62.

[0031] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. As shown in FIGS. 4 and 8 , the blocking portion 61 is formed to cover the entire −X direction end of the wire accommodating portion 21 and the −X direction end of the surrounding portion 51 of the shell 50. The blocking portion 61 is formed in the shape of an oval plate having a major axis along the Y direction when viewed from the X direction, corresponding to the shape of the −X direction opening edge (−X direction edge) of the surrounding portion 51 (see FIG. 7 ). The outer periphery of the blocking portion 61 faces the −X direction opening edge of the surrounding portion 51 over its entire periphery (see FIG. 3 ). The outer periphery of the blocking portion 61 is adjacent to the −X direction opening edge of the surrounding portion 51 with substantially no gap. However, the outer periphery of the blocking portion 61 may be adjacent to the −X direction opening edge of the surrounding portion 51 with a small gap therebetween. Since the blocking portion 61 is adjacent to the opening edge of the surrounding portion 51 in the -X direction with substantially no gap, it is possible to identify from the outside that the rear holder 60 is positioned in the correct position relative to the shell 50 and the housing 10.

[0032] 4 and 7, the insertion portions 62 are inserted into the cylindrical portion 22 of the wire accommodating portion 21 from the opposite side to the front portion 11. The same number of insertion portions 62 as the cylindrical portions 22 are provided, and each insertion portion 62 is inserted into the corresponding cylindrical portion 22 one by one. The insertion portions 62 are formed in a cylindrical shape extending in the X direction in accordance with the internal shape of the cylindrical portion 22.

[0033] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 9, a protrusion 63 is formed on the inner peripheral surface of the insertion portion 62. The electric wire 41 passes through the inside of the insertion portion 62. The protrusion 63 bites into the coating of the electric wire 41, so that the insertion portion 62 holds the electric wire 41 so that it cannot be displaced.

[0034] As shown in FIGS. 6 and 7 , the rear holder 60 includes a restricting portion 64 that restricts displacement of the first lance projection 83. The restricting portion 64 protrudes from the closing portion 61 toward the inside of the outer peripheral wall portion 25 in the +X direction. A restricting portion 64 is provided corresponding to each of the first lance projections 83. The restricting portion 64 is disposed inside the first locking lance 81. The restricting portion 64 is inserted between the first locking lance 81 and the inner coupling portion 24. The restricting portion 64 is in direct contact with the inner coupling portion 24 and is restricted from displacement in the direction away from the first locking lance 81 (inward). The restricting portion 64 is in direct contact with the first locking lance 81 and restricts displacement of the first locking lance 81 in the direction away from the surrounding portion 51 (inward). The tip of the restricting portion 64 is tapered so that its thickness in the Z direction decreases as it approaches the +X direction. The tip of the restricting portion 64 has a sliding surface 65 that extends toward the surrounding portion 51 side (outward in the Z direction) when viewed from the X direction as it moves in the -X direction. During the process of inserting the insertion portion 62 into the cylindrical portion 22, the tip of the first locking lance 81 slides on the sliding surface 65 and is pressed toward the surrounding portion 51 side (outward in the Z direction).

[0035] When the housing 10 and the shell 50 are in a partially fitted state, the tip of the first locking lance 81 is located inside the normal position, and the tip of the restricting portion 64 abuts against the tip of the first locking lance 81 during the process of inserting the insertion portion 62 into the cylindrical portion 22. The tip of the restricting portion 64 abuts against the tip of the first locking lance 81, thereby restricting the insertion of the insertion portion 62 into the cylindrical portion 22. When the housing 10 and the shell 50 are in a partially fitted state, the rear holder 60 is located in a position in the -X direction from the normal position relative to the shell 50 and the housing 10, and thus the insertion of the insertion portion 62 into the cylindrical portion 22 is restricted.

[0036] 5, 7, and 8, the housing 10 and the rear holder 60 have second engagement portions 85 that engage with each other. A plurality of second engagement portions 85 are provided in the Z direction and a plurality of second engagement portions 85 are provided in the Y direction. The second engagement portions 85 have a second locking lance 86 provided in the rear holder 60 and a second locking recess 87 provided in the housing 10.

[0037] As shown in Figures 7 and 8, a second locking lance 86 is provided in each insertion section 62. The second locking lance 86 is provided at the end of each insertion section 62 in the +Z direction and the end in the -Z direction. The second locking lance 86 is a cantilever lever with the end in the +X direction as the base end (fixed end). The second locking lance 86 is connected to the opening edge of a recess formed in the outer peripheral surface of the insertion section 62. The second locking lance 86 is formed in a plate shape having a thickness in the Z direction. The second locking lance 86 can bend in the Z direction. The second locking lance 86 has a second lance protrusion 88. The second lance protrusion 88 protrudes outward from the outer peripheral surface of the insertion section 62 toward the cylindrical section 22 when viewed in the X direction. The second lance protrusion 88 protrudes outward in the Z direction from the outer peripheral surface of the insertion section 62. The second lance projections 88 are elastically displaceable inward so as to move away from the cylindrical portion 22 when the second locking lance 86 is bent in the Z direction.

[0038] As shown in FIGS. 5 and 8 , the second locking recesses 87 are provided in the outer peripheral wall portion 25 of the wire accommodating portion 21 of the housing 10. The second locking recesses 87 open to the inner peripheral surface of each cylindrical portion 22. The second locking recesses 87 are formed in positions facing the second lance protrusions 88 on the inner peripheral surface of the cylindrical portion 22. In this embodiment, the second locking recesses 87 penetrate the cylindrical portion 22 in the radial direction of the cylindrical portion 22. When the housing 10 and the rear holder 60 are fully fitted together, the second lance protrusions 88 fit into the second locking recesses 87. The opening edge of the second locking recesses 87 engages with the second lance protrusions 88 from the −X direction, thereby restricting movement of the rear holder 60 in the −X direction relative to the housing 10.

[0039] As shown in FIG. 5 , the housing 10 includes press-fit arms 30 arranged along the inner circumferential surface of the surrounding portion 51 of the shell 50. The press-fit arms 30 are an example of a "press-fit portion." The press-fit arms 30 are aligned in a direction perpendicular to the X direction. In this embodiment, the press-fit arms 30 are aligned in the Y direction and are provided at both ends of the outer circumferential wall portion 25 in the Y direction. The pair of press-fit arms 30 aligned in the Y direction are an example of a "first press-fit portion" and a "second press-fit portion." The press-fit arms 30 are provided on the cylindrical portion 22. The press-fit arm 30 is located between a pair of notches extending from the -X direction edge of the cylindrical portion 22 in the +X direction, and is a cantilever-like member with a free end on the opposite side (-X direction) of the front portion 11. The press-fit arm 30 extends along the X direction with a constant width. The press-fit arm 30 is formed in a plate shape having a thickness in the Y direction. The press-fit arm 30 can bend in the Y direction. The press-fit arm 30 has a sliding surface 30a facing the inside of the outer peripheral wall portion 25. The sliding surface 30a extends inward when viewed from the X direction (inward in the Y direction) as it moves toward the +X direction so as to face the opening side of the outer peripheral wall portion 25 in the -X direction (see FIG. 11).

[0040] The press-fit arm 30 has a press-fit protrusion 31. The press-fit protrusion 31 bulges outward toward the surrounding portion 51 (outward in the Y direction) when viewed from the X direction. The press-fit protrusion 31 is provided at a distance in the X direction from the base end (fixed end) of the press-fit arm 30. The press-fit protrusion 31 is provided at the tip of the press-fit arm 30. The press-fit protrusion 31 is located at the end of the cylindrical portion 22 in the -X direction. A top surface 32 of the press-fit protrusion 31 is rectangular.

[0041] FIG. 10 is an enlarged view of the X portion of FIG. As shown in FIG. 10 , the top surface 32 of the press-fit protrusion 31 contacts the inner circumferential surface of the surrounding portion 51. The top surface 32 of the press-fit protrusion 31 is formed in a convex curved shape. The top surface 32 of the press-fit protrusion 31 extends parallel to the inner circumferential surface of the surrounding portion 51 at a location facing the press-fit protrusion 31 when viewed from the X direction. In this embodiment, the top surface 32 of the press-fit protrusion 31 is a cylindrical surface extending in the X direction. The top surface 32 of the press-fit protrusion 31 contacts the inner circumferential surface of the surrounding portion 51 at multiple locations when viewed from the X direction. In this embodiment, the top surface 32 of the press-fit protrusion 31 contacts the inner circumferential surface of the surrounding portion 51 over the entire length of the top surface 32 when viewed from the X direction. The press-fit protrusion 31 contacts the inner peripheral surface of the surrounding portion 51 at multiple locations facing in different directions, and thus the press-fit protrusion 31 is pressed against the surrounding portion 51 in multiple directions that are not parallel to each other, as indicated by the arrows in Fig. 10. In this embodiment, the top surface 32 of the press-fit protrusion 31 is not in contact with the inner surface of the surrounding portion 51 when the pressing portion 70, which will be described later, is not in contact with the press-fit arm 30.

[0042] As shown in Figures 7 and 9, the rear holder 60 has a pressing portion 70 that presses the press-fit arm 30 toward the inner peripheral surface of the surrounding portion 51. A plurality of (two in this embodiment) pressing portions 70 are provided in one-to-one correspondence with the press-fit arms 30. The pressing portions 70 are arranged inside the press-fit arms 30 and face the press-fit arms 30. The pressing portions 70 are provided at both ends of the rear holder 60 in the Y direction. The pressing portions 70 are formed integrally with the insertion portions 62 located at both ends in the Y direction among the multiple insertion portions 62. The pressing portions 70 protrude from the outer peripheral surfaces of the insertion portions 62 toward the press-fit arm 30. The pressing portions 70 are connected to the blocking portion 61.

[0043] FIG. 11 is an enlarged view of a portion XI in FIG. As shown in FIG. 11 , the pressing portion 70 is in contact with the press-fit arm 30. The pressing portion 70 has a top surface 71 that contacts the sliding surface 30a of the press-fit arm 30. The top surface 71 of the pressing portion 70 is in contact with a portion of the sliding surface 30a that is located behind the press-fit protrusion 31. The top surface 71 of the pressing portion 70 faces the +X direction and extends outward as viewed from the X direction (outward in the Y direction) as it moves toward the -X direction. During the process of inserting the insertion portion 62 into the cylindrical portion 22, the pressing portion 70 is also inserted into the cylindrical portion 22 from the opposite side of the front portion 11. When the pressing portion 70 is inserted into the cylindrical portion 22, the pressing portion 70 slides against the sliding surface 30a of the press-fit arm 30. The press-fit arm 30 is pressed toward the surrounding portion 51 (outward in the Y direction) by the pressing portion 70. When pressed by the pressing portion 70, the press-fit arm 30 bends outward in the Y direction toward the surrounding portion 51. The top surface 32 of the press-fit protrusion 31 is in pressure contact with the inner circumferential surface of the surrounding portion 51 when the press-fit arm 30 is bent. In this way, the press-fit arm 30 is press-fitted between the surrounding portion 51 and the insertion portion 62 of the rear holder 60.

[0044] As shown in FIGS. 2 and 9 , the rear holder 60 is formed by combining two parts so as to sandwich the electric wires 41 from both sides in the Z direction. In other words, the rear holder 60 is formed so as to be separable into two. The two parts forming the rear holder 60 are formed so as to sandwich all of the electric wires 41 lined up in the Y direction collectively from both sides in the Z direction. The rear holder 60 holds the electric wires 41 by sandwiching the electric wires 41 between the two parts. The top surface 71 of the pressing portion 70 is formed in a single part so as not to be formed across two parts. In this embodiment, the pressing portion 70 itself is formed from a single part. More specifically, one pressing portion 70 is formed in one of the two parts forming the rear holder 60, and the other pressing portion 70 is formed in the other part.

[0045] In this embodiment, the wire accommodating portion 21 of the housing 10 includes a press-fit arm 30 that is press-fit between the shell 50 and the rear holder 60. This configuration can prevent rattles from occurring between the housing 10 and the shell 50 and between the housing 10 and the rear holder 60. Therefore, the wire 41 held by the rear holder 60 is fixed to the shell 50 and the housing 10. This can prevent vibrations of the wire 41 from being suppressed by the rear holder 60 and being transmitted to the terminal 40.

[0046] The press-fit arm 30 is a cantilever-shaped lever provided along the inner surface of the shell 50. The rear holder 60 includes a pressing portion 70 that presses the press-fit arm 30 toward the inner surface of the shell 50. With this configuration, the press-fit arm 30 is more likely to bend toward the inner surface of the shell 50. By fitting the rear holder 60 into the inside of the wire accommodating portion 21, the press-fit arm 30 is pressed by the pressing portion 70, bends toward the inner surface of the shell 50, and is pressed against the inner surface of the shell 50. Therefore, the press-fit arm 30 is press-fitted between the shell 50 and the pressing portion 70 of the rear holder 60. Therefore, an example of a configuration that achieves the above-mentioned effects is obtained.

[0047] The wire accommodating portion 21 is formed in a cylindrical shape extending in the X direction. The pressing portion 70 is inserted into the wire accommodating portion 21 from the opposite side of the front portion 11. The press-fit arm 30 extends along the X direction and has a free end opposite the end on the front portion 11 side. With this configuration, the free end of the press-fit arm 30 is located on the opposite side of the front portion 11, and the free end is positioned closer to the pressing portion 70 than the fixed end. Therefore, compared to a configuration in which the free end of the press-fit arm is located on the front portion 11 side, the press-fit arm 30 can be more easily pressed by the pressing portion 70 and bend. Therefore, the press-fit arm 30 can be reliably pressed against the inner surface of the shell 50, and the press-fit arm 30 can be reliably pressed between the shell 50 and the pressing portion 70 of the rear holder 60.

[0048] The pair of press-fit arms 30 are aligned in the Y direction, which is perpendicular to the X direction, which is the assembly direction of the shell 50 to the wire accommodating portion 21. This configuration can suppress relative displacement of the housing 10, the shell 50, and the rear holder 60 in both the +Y direction and the −Y direction. This more reliably prevents backlash from occurring between the housing 10 and the shell 50 and between the housing 10 and the rear holder 60.

[0049] The press-fit arm 30 is pressed against the shell 50 in multiple directions. With this configuration, the press-fit arm 30 at one location can restrict relative displacement between the housing 10 and the shell 50 in multiple directions. Therefore, the housing 10 and the shell 50 can be reliably fixed in multiple directions.

[0050] In the above embodiment, the press-fit protrusion 31 is provided on the press-fit arm 30. However, the press-fit arm does not necessarily have to be provided with the press-fit protrusion.

[0051] In the above embodiment, the housing 10 is formed so that the electric wires 41 are drawn out in the -X direction. However, the housing may be formed so that the electric wires are drawn out in a direction intersecting the X direction. In other words, the electric wire accommodating portion of the housing does not have to be provided behind (in the -X direction) the terminal support portion that supports the terminal.

[0052] In the above embodiment, the pair of press-fit arms 30 are aligned in the Y direction. However, the above-described effects can be achieved if the press-fit arms are aligned in a direction intersecting the X direction. Also, the housing may have a single press-fit arm, and the rear holder may have a single pressing portion.

[0053] Several embodiments and modifications have been described above. However, the embodiments and modifications are not limited to the above examples. For example, multiple embodiments may be realized in combination with each other. [Explanation of symbols]

[0054] 1...Connector 10. Housing 11...Front section (terminal support section) 21... Wire housing section 30...Press-fit arm (press-fit portion, first press-fit portion, second press-fit portion) 40...Terminal 41...Electric wire 50…shell 60...Rear holder (holder) 70...Pressing part

Claims

1. a housing having a terminal support portion for supporting a terminal and an electric wire accommodating portion through which an electric wire connected to the terminal passes; a shell fitted to the outside of the wire accommodating portion from the opposite side of the terminal support portion; a holder that holds the electric wire and fits inside the electric wire housing portion; Equipped with The wire accommodating portion includes a press-fit portion that is press-fitted between the shell and the holder. connector.

2. the press-fit portion is a cantilever-like portion provided along the inner surface of the shell, the holder includes a pressing portion that presses the press-fit portion toward the inner surface of the shell. The connector according to claim 1 .

3. The wire accommodating portion is formed in a cylindrical shape extending in a first direction, the pressing portion is inserted into the wire accommodating portion from the opposite side of the terminal support portion, The press-fit portion extends in the first direction, and an end portion opposite to an end portion on the terminal support portion side is a free end. The connector according to claim 2 .

4. the press-fit portion has a first press-fit portion and a second press-fit portion, The first press-fit portion and the second press-fit portion are aligned in a direction perpendicular to an assembly direction of the shell to the wire accommodating portion. The connector according to any one of claims 1 to 3.

5. The press-fit portion is in pressure contact with the shell in multiple directions. The connector according to any one of claims 1 to 3.

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