JP2016213053A - Packing, connector, and wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing, a connector, and a wiring harness which can suppress the deterioration in waterproof performance of the packing.SOLUTION: A wiring harness comprises a connector. The connector comprises: a terminal fitting; a polygonal housing for housing the terminal fitting; and a packing 30 which is fitted onto an outer peripheral surface of the housing so as to waterproof between the connector and a mating component. The packing 30 comprises a packing body 31 and a core material 32. The packing body 31 comprises: a housed part 33 which is housed in a recessed groove provided on the outer peripheral surface of the housing; an outer peripheral surface mounting part 34 which is integral with the housed part 33 and is arranged on the outer peripheral surface of the housing; and a lip part 35 which is integral with the outer peripheral surface mounting part 34 and waterproofs between the connector and the mating component. The core material 32 is embedded in the packing body 31 over the housed part 33 and the outer peripheral surface mounting part 34.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a packing, a connector, and a wire harness.

  Conventionally, a waterproof connector provided with a gasket for waterproofing between a mating part and an outer peripheral surface of a housing that accommodates terminal fittings is used as a connector for connecting to mating parts such as various electronic devices and mating connectors. ing.

JP 2014-22062 A JP 2014-154359 A

  By the way, when the connectors described in Patent Document 1 and Patent Document 2 described above are attached to the mating part, the packing may be displaced with respect to the housing, particularly when the connector is approached obliquely. It was. When the packing is displaced with respect to the housing, the connector may have a reduced waterproof performance.

  This invention is made | formed in view of said situation, Comprising: It aims at providing the packing which can suppress the fall of the waterproof performance of a packing, a connector, and a wire harness.

  In order to achieve the above object, the packing according to the present invention is formed of a synthetic resin that is formed in a polygonal shape when viewed from the front and is attached to the entire circumference of the outer peripheral surface of the housing that is attached to the counterpart component, and is elastically deformable. And a core material made of a synthetic resin harder than a synthetic resin embedded in the packing body and constituting the packing body, and the packing body is formed on the outer peripheral surface of the housing. A receiving portion that is received in the recessed groove provided; an outer peripheral surface placement portion that is integral with the accommodation portion and provided on an outer peripheral surface of the housing; and that is integral with the outer peripheral surface placement portion and the counterpart A lip portion that waterproofs between the side parts, and the core material is embedded in the packing body across the housing portion and the outer peripheral surface mounting portion.

  Further, in the packing, the packing body includes two lip portions spaced apart in the front-rear direction, and in the front-rear direction, at least a part of the core material is an outer periphery of the housing of the two lip portions. It can be provided between the tops most protruding from the surface.

  Moreover, in the said packing, the said core material shall be provided with the normal part with a constant cross-sectional area along the said front-back direction, and the small part whose cross-sectional area along the said front-back direction is smaller than the said normal part. be able to.

  Moreover, in the said packing, the said normal part shall be provided on the plane of the said outer peripheral surface of the said housing.

  In order to achieve the above object, a connector according to the present invention is formed in a polygonal shape in a front view and is attached to a counterpart component, and is accommodated in the housing and electrically connected to the counterpart component. A terminal fitting to be connected, and a gasket that is attached to the outer peripheral surface of the housing and waterproofs between the counterpart component, and the packing is attached to the entire outer periphery of the housing, A packing body made of an elastically deformable synthetic resin; and a core material embedded in the packing body and made of a synthetic resin harder than the synthetic resin constituting the packing body. Are housed in a recessed groove provided on the outer peripheral surface of the housing, and an outer portion provided integrally with the housing portion and provided on the outer peripheral surface of the housing. A surface mounting portion, and a lip portion that is integral with the outer peripheral surface mounting portion and waterproofs between the counterpart component, and the core member includes the housing portion and the outer peripheral surface mounting portion. And embedded in the packing body.

  In order to achieve the above object, a wire harness according to the present invention has a polygonal shape when viewed from the front and is attached to a counterpart component, and is housed in the housing and electrically connected to the counterpart component. A connector provided with a terminal fitting connected to the outer peripheral surface of the housing and waterproofing between the counterpart component, and an electric wire electrically connected to the terminal fitting, The packing is attached to the entire circumference of the outer peripheral surface of the housing, and a packing body made of an elastically deformable synthetic resin, and a composite that is embedded in the packing body and constitutes the packing body And a core member made of a synthetic resin harder than the resin, wherein the packing body is accommodated in a concave groove provided on the outer peripheral surface of the housing An outer peripheral surface mounting portion that is integral with the housing portion and provided on the outer peripheral surface of the housing; and a lip portion that is integral with the outer peripheral surface mounting portion and waterproofs between the counterpart component; The core material is embedded in the packing body across the housing portion and the outer peripheral surface mounting portion.

  The packing which concerns on this invention embeds the core material comprised with the synthetic resin harder than the synthetic resin which comprises a packing main body in the packing main body. In addition, the packing is integrally provided with a housing portion in which the packing body is housed in the recessed groove of the housing and an outer peripheral surface mounting portion provided on the outer peripheral surface of the housing, and the core material includes the housing portion and the outer peripheral surface mounting portion. Are provided. As a result, when the packing is attached to the counterpart component, the core material is not easily elastically deformed even if the packing is misaligned, and the core material presses the housing portion into the groove. As a result, since the accommodating portion is pressed into the concave groove, the packing is prevented from coming out of the concave groove, and can be prevented from being displaced from the outer peripheral surface of the housing. In addition, there is an effect that the waterproof performance of the packing can be prevented from being lowered.

FIG. 1 is a perspective view illustrating a schematic configuration of a connector according to the embodiment. FIG. 2 is a cross-sectional view illustrating a schematic configuration of the connector according to the embodiment. Drawing 3 is a sectional view showing the state where the connector concerning an embodiment was attached to the other party part. FIG. 4 is a perspective view illustrating a schematic configuration of the connector packing according to the embodiment. FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a perspective view illustrating a schematic configuration of the core material of the packing of the connector according to the first modification of the embodiment. FIG. 7 is a sectional view taken along line VII-VII in FIG. FIG. 8 is a sectional view taken along line VIII-VIII in FIG. FIG. 9 is a perspective view illustrating a schematic configuration of the connector packing according to the second modification of the embodiment. 10 is a cross-sectional view taken along line XX in FIG.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

[Embodiment]
FIG. 1 is a perspective view illustrating a schematic configuration of a connector according to the embodiment. FIG. 2 is a cross-sectional view illustrating a schematic configuration of the connector according to the embodiment. Drawing 3 is a sectional view showing the state where the connector concerning an embodiment was attached to the other party part. FIG. 4 is a perspective view illustrating a schematic configuration of the connector packing according to the embodiment. FIG. 5 is a cross-sectional view taken along line VV in FIG.

  A connector 1 shown in FIG. 1 according to the present embodiment is mounted on a vehicle such as an automobile, and supplies power between an inverter and a motor or supplies electric signals to various electronic devices. Here, as shown in FIG. 3, the connector 1 is attached to a counterpart component 200 that is incorporated in an electronic device 150 such as an inverter and accommodates a terminal fitting 202 attached to a terminal such as an electric wire 201. It is incorporated in the wire harness 151. The connector 1 supplies power or an electric signal to an electronic device or the like, for example, by being attached to a counterpart component 200 constituting the wire harness 151.

  In the present embodiment, the counterpart component 200 includes a terminal fitting 202 attached to the end of the electric wire 201, an insulating housing 203 that houses the terminal fitting 202, and a conductive shield shell 204 that covers the housing 203. Thus, it is a so-called shield connector that suppresses leakage of electrical noise caused by current flowing through the terminal fitting 202 and the like to the outside. The connector 1 is attached to the counterpart component 200 and supplies power to an inverter, a motor or the like. Further, when the connector 1 is attached to a shield connector as the counterpart component 200, the connector 201 includes an electric wire 201 in which a terminal or the like is electrically connected to the terminal fitting 202, and a wire harness 151 routed in a vehicle such as an automobile. Configure. That is, the wire harness 151 includes at least the connector 1 and the electric wire 201.

  Specifically, the connector 1 includes a terminal fitting 10, a housing 20, and a packing 30 as shown in FIGS. 1, 2, and 3.

  The terminal fitting 10 is accommodated in the housing 20 and is electrically connected to the terminal fitting 202 of the counterpart component 200 when the connector 1 is attached to the counterpart component 200. The terminal fitting 10 is formed into a desired shape by punching a conductive metal plate material into a predetermined shape and then performing a tapping process or a bending process. When a shield connector as the counterpart component 200 is attached to the connector 1, the terminal fixture 10 is electrically connected to the electric wire 201 via the terminal fixture 202 of the counterpart component 200. That is, the electric wire 201 is electrically connected to the terminal fitting 10.

  Specifically, the terminal fitting 10 integrally includes an electric wire connecting portion that is electrically connected to an electronic device 150 such as an inverter and an electric contact portion 11 that is electrically connected to the terminal fitting 202 of the counterpart component 200. In preparation. In the present embodiment, the electrical contact portion 11 is formed in a cylindrical shape extending linearly along a direction in which the connector 1 is brought close to the counterpart component 200 when the connector 1 is attached to the counterpart component 200. In this embodiment, the electrical contact portion 11 accommodates the terminal fitting 202 inside and connects to the terminal fitting 202.

  In addition, when the connector 1 is attached to the counterpart component 200, the direction in which the connector 1 is brought close to the counterpart component 200, that is, the longitudinal direction of the electrical contact portion 11 is referred to as the front-rear direction of the connector 1. The direction approaching the front is denoted as the front side, the direction away from the rear is denoted as the rear side, and the direction viewed from the front side in the front-rear direction is denoted as the front view. Further, a circumferential direction centered on a central axis P (indicated by a one-dot chain line in FIG. 1 and the like) parallel to the front-rear direction of the connector 1 is referred to as a circumferential direction.

  The terminal fitting 10 has the electrical contact portion 11 and the wire connecting portion provided on the same straight line, and is parallel to the longitudinal direction of the electric wire 201 to which the terminal is attached to the terminal fitting 202 of the counterpart component 200. In the present embodiment, three terminal fittings 10 are provided.

  The housing 20 is a structure that constitutes the main body of the connector 1 and is attached to the counterpart component 200. In this embodiment, the housing 20 is entirely made of an insulating synthetic resin or the like, and is molded using a mold or the like. The housing 20 is formed in a rectangular tube shape having an outer appearance that is a polygonal shape. Thus, the housing 20 is formed in a quadrangular shape that is polygonal when viewed from the front. The housing 20 electrically insulates the terminal fittings 10 from each other and accommodates them inside.

  In the present invention, the polygonal shape in front view means that the outer peripheral surface 21 of the housing 20 has a plurality of planes 21a and corners 21b between the planes 21a, and the plane 21a is flat. In addition to those that are slightly curved, those that are curved in addition to those that have sharp corners. In this embodiment, the outer peripheral surface 21 of the housing 20 has four flat planes 21a and four curved corners 21b between the planes 21a.

  Moreover, in this embodiment, the some housing 20 is connected by the flange member 22, as shown in FIG. Specifically, the flange member 22 is a flat plate that connects the outer peripheral surfaces 21 of the two housings 20. Both surfaces of the flange member 22 are orthogonal to the front-rear direction. The housing 20 is attached to the counterpart component 200 with the front side of the flange member 22 inserted into the shield shell 204 of the counterpart component 200 and the housing 203 inserted in front of the flange member 22.

  Further, the outer circumferential surface 21 of the housing 20 is provided with a concave groove 23 on the entire circumference in the circumferential direction. Specifically, the concave groove 23 is provided in front of the flange member 22 of the outer peripheral surface 21 of the housing 20. The cross-sectional shape of the cross section along the front-back direction passing through the central axis P of the housing 20 of the concave groove 23 is formed in a rectangular shape.

  Further, a front flange 24 is provided on the entire front end of the housing 20 in the circumferential direction. Specifically, the front flange 24 is a protrusion protruding in the outer circumferential direction from the front end of the housing 20. A surface of the front flange 24 facing the flange member 22 is orthogonal to the front-rear direction.

  The packing 30 is attached to the entire circumference in the circumferential direction of the outer peripheral surface 21 of the housing 20, and waterproofs between the housing 20 and the counterpart component 200. Specifically, the packing 30 includes a packing main body 31 and a core member 32 as shown in FIGS. 4 and 5.

  The packing body 31 is a structural body that constitutes the body of the packing 30, is attached to the entire circumference of the outer peripheral surface 21 of the housing 20, and is made of an elastically deformable synthetic resin such as rubber. The packing body 31 is made of various synthetic rubbers such as silicon rubber, acrylic rubber, and fluorine rubber, for example. As the synthetic rubber constituting the packing main body 31, a waterproof rubber or an oilproof one is appropriately selected depending on the use of the connector 1 or the like. The packing body 30 is formed in an annular shape along the outer peripheral surface 21 of the housing 20. In this embodiment, the front view of the outer edge of the packing body 31 is formed in a substantially square shape.

  Specifically, the packing main body 31 is integrally provided with an accommodating portion 33, an outer peripheral surface placing portion 34, and a lip portion 35. The accommodating part 33 is accommodated in the concave groove 23. The cross-sectional shape of the cross section along the front-rear direction passing through the central axis P of the accommodating portion 33 is formed in a rectangular shape that is substantially the same shape as the concave groove 23. In the present embodiment, the long side direction of the cross section of the accommodating portion 33 is parallel to the front-rear direction. Moreover, in this embodiment, the small lip 33a closely_contact | adhered with the bottom face of the ditch | groove 23 is provided in the front-back direction at intervals in the perimeter of the inner peripheral surface of the accommodating part 33. FIG. The small lip 33 a is convex from the inner peripheral surface of the housing portion 33.

  The outer peripheral surface mounting portion 34 is integrated with the housing portion 33 and provided on the outer peripheral surface 21 of the housing 20. The outer circumferential surface placing portion 34 is provided on the outer circumferential side of the housing portion 33, and the width in the front-rear direction of the outer circumferential surface placing portion 34 is larger than the width in the front and rear direction of the housing portion 33. In the present embodiment, the outer peripheral surface mounting portion 34 protrudes on both the front side and the rear side of the housing portion 33. The outer peripheral surface placing portion 34 is provided between the flange member 22 and the front flange 24 when the accommodating portion 33 is accommodated in the concave groove 23 and the packing 30 is attached to the outer peripheral surface 21 of the housing 20. In the present embodiment, the thickness of the outer peripheral surface mounting portion 34 is smaller than the protruding amount of the front flange 24 from the outer peripheral surface 21 of the housing 20.

  The lip part 35 is integral with the outer peripheral surface mounting part 34 and waterproofs the shield shell 204 of the counterpart component 200. The lip portion 35 is convex from the outer peripheral surface placing portion 34 in the outer peripheral direction. The lip portion 35 is provided on the entire circumference of the outer peripheral surface placing portion 34. In the present embodiment, two lip portions 35 are provided at intervals in the front-rear direction. That is, the packing body 31 includes two lip portions 35 spaced apart in the front-rear direction. The lip portion 35 is formed in a mountain shape in which the width in the front-rear direction gradually decreases toward the outer periphery.

  The core member 32 is made of a synthetic resin that is embedded in the packing body 31 and harder than the synthetic resin that constitutes the packing body 31. In the present embodiment, the core member 32 is embedded in the entire circumference of the packing body 31. The core material 32 is made of synthetic resin such as PBT (polybutylene terephthalate) or PBT-GF, preferably various engineering plastics. As a synthetic resin constituting the core member 32, a synthetic resin such as an engineering plastic having elasticity that allows the packing 30 to be attached to the concave groove 23 of the housing 20 and being somewhat harder than the packing body 31 is appropriately selected. The core material 3PBT2 is formed in an annular shape having substantially the same shape as the packing body 31. In this embodiment, the front view of the outer edge of the core member 32 is formed in a substantially square shape.

  The cross-sectional shape of the cross section along the front-rear direction passing through the central axis P of the core member 32 is formed in a round shape (in this embodiment, a circle) as shown in FIG. In the present embodiment, the cross-sectional shape along the front-rear direction of the core member 32 is the same in any cross-section at any position. That is, in the present embodiment, the core material 32 has the same cross-sectional shape and cross-sectional area along the front-rear direction over the entire circumference.

  Further, the core material 32 is embedded in the packing body 31 across the accommodating portion 33 and the outer peripheral surface mounting portion 34 in the circumferential direction, and is not exposed from the outer surface and inner peripheral surface of the packing main body 31, that is, It is provided at a position covered with the packing body 31. Further, at least a part of the core member 32 is provided between the top portions 35a that protrude most from the outer peripheral surface 21 of the housing 20 of the two lip portions 35 in the front-rear direction. In the present embodiment, the entire core member 32 is provided between the top portions 35 a of the two lip portions 35 in the front-rear direction.

  In the packing 30 having the above-described configuration, the packing main body 31 and the core material 32 are integrally molded using a mold or the like. The packing 30 is pulled in the outer circumferential direction so that the space surrounded on the inside is widened, and the front side of the flange member 22 of the housing 20 is passed inside. In the packing 30, the accommodating portion 33 is accommodated in the concave groove 23, and the outer peripheral surface placing portion 34 is accommodated between the flange member 22 and the front flange 24, so that the entire periphery of the outer peripheral surface 21 of the housing 20 is provided. It is attached.

  The connector 1 configured as described above is assembled by housing the terminal fitting 10 in the housing 20 and attaching the packing 30 to the entire circumference of the outer peripheral surface 21 of the housing 20. The connector 1 is inserted into the electronic device 150 at the rear side of the flange member 22 of the housing 20, and the flange member 22 is fixed to the case 150a of the electronic device 150 with a bolt or the like (not shown). The connector 1 assembled in this manner is attached to the counterpart component 200 and mounted on a vehicle such as an automobile. When the connector 1 is attached to the mating part 200, the lip portion 35 of the packing 30 is pressed from the inner surface of the shield shell 204 to the inner peripheral side, and the packing 30 is connected to the housing 20 and the shield shell 204 of the mating part 200. It is in close contact with both sides and waterproofs between them. When the connector 1 is attached to the counterpart component 200, the connector 1 is fixed to the counterpart component 200 with a bolt or the like (not shown).

  When the connector 1 is attached to the mating part 200, the packing 30 may come into contact with the shield shell 204 of the mating part 200, and the packing 30 may be displaced from the housing 20. Then, since the core material 32 that is harder than the packing body 31 is embedded in the packing body 31 across the accommodating portion 33 and the outer peripheral surface mounting portion 34 in the circumferential direction, the core material 32 dents the accommodating portion 33. It will stay within 23. Therefore, when the connector 1 is attached to the counterpart component 200, the packing 30 is prevented from being displaced with respect to the housing 20.

  According to the packing 30 described above, the core material 32 made of a synthetic resin harder than the synthetic resin constituting the packing body 31 is embedded in the packing body 31. Further, the packing 30 integrally includes a housing portion 33 in which the packing body 31 is housed in the concave groove 23 of the housing 20 and an outer peripheral surface mounting portion 34 provided on the outer peripheral surface 21 of the housing 20. Is provided across the accommodating portion 33 and the outer peripheral surface placing portion 34. As a result, when the packing 30 is attached to the counterpart component 200, the core material 32 is unlikely to be elastically deformed even when trying to shift its position, so the core material 32 presses the accommodating portion 33 into the groove 23. . As a result, since the accommodating portion 33 is pressed into the concave groove 23, the packing 30 can be prevented from coming out of the concave groove 23, and can be prevented from being displaced with respect to the outer peripheral surface 21 of the housing 20. When attached to the component 200, there is an effect that the waterproof performance of the packing 30 can be suppressed from being lowered. Further, the packing 30 is provided with a core member 32 across the accommodating portion 33 and the outer peripheral surface placing portion 34. Thereby, the packing 30 can be easily attached to the outer peripheral surface 21 of the housing 20 because the inner peripheral side portion of the housing portion 33 near the core member 32 is easily deformed so that a space surrounding the inner side expands.

  In the packing 30, the core member 32 is provided between the top portions 35 a of the two lip portions 35 in the front-rear direction. Thereby, the core material 32 is arrange | positioned in the accommodating part 33 in the front-back direction. In the present embodiment, the entire core member 32 is disposed in the housing portion 33 in the front-rear direction. As a result, when the packing 30 is attached to the counterpart component 200, the core member 32 presses the housing portion 33 into the concave groove 23 even if it is going to be displaced, and the displacement relative to the outer peripheral surface 21 of the housing 20 is prevented. Can be suppressed.

  Since the connector 1 demonstrated above is provided with the above-mentioned packing 30, there exists an effect that it can suppress that the waterproof performance of the packing 30 falls.

  Moreover, since the wire harness 151 demonstrated above is provided with the above-mentioned packing 30, there exists an effect that it can suppress that the waterproof performance of the packing 30 of the connector 1 falls.

[Modification 1]
FIG. 6 is a perspective view illustrating a schematic configuration of the core material of the packing of the connector according to the first modification of the embodiment. FIG. 7 is a sectional view taken along line VII-VII in FIG. FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 6 to 8, the same parts as those in the embodiment are denoted by the same reference numerals and description thereof is omitted.

  The core member 32-1 of the packing 30 of the connector 1 according to the first modification of the embodiment includes a normal portion 36 and a small portion 37, as shown in FIG. The normal portion 36 refers to a portion having a constant cross-sectional area along the front-rear direction. Specifically, as shown in FIG. 7, the normal portion 36 is a portion where the cross-sectional shape along the front-rear direction of the core member 32-1 is constant, that is, the cross-sectional shape along the front-rear direction and the cross-sectional area are equal. . In the first modification, the normal portion 36 is a portion in which the cross-sectional shape of the cross section along the front-rear direction of the core member 32-1 is round (circular) and the outer diameter is equal. When the packing 30 is attached to the outer peripheral surface 21 of the housing 20, the normal portion 36 is provided at least on the flat surface 21 a of the housing 20, specifically, on the flat surface 21 a on the long side in front view.

  The small portion 37 refers to a portion having a cross-sectional area that is smaller than that of the normal portion 36 and that passes through the central axis P and extends in the front-rear direction. Specifically, as shown in FIG. 8, the small portion 37 is a portion in which the cross-sectional shape along the front-rear direction of the core member 32-1 is smaller than the normal portion 36. In the first modification, the small portion 37 is formed by a notch 37a in which a part of the core material 32-1 is notched. The notch 37a is obtained by notching the core member 32-1 by a half of the cross section from the outer peripheral side toward the inner peripheral side. The small portion 37 is a portion in which the cross-sectional shape of the cross section along the front-rear direction of the core member 32-1 is a semicircular (semicircular) shape. When the packing 30 is attached to the outer peripheral surface 21 of the housing 20, the small portion 37 is disposed in the circumferential direction of the core member 32-1 on the four corners 21 b of the housing 20 and the flat surface 21 a on the short side when viewed from the front. Provided at intervals. The small portion 37 makes the core member 32-1 easily elastically deformed so as to expand and contract the notch 37a. Further, a normal portion 36 is provided between the small portions 37.

  According to the packing 30 of the modification 1 demonstrated above, there exists an effect that it can suppress that the waterproof performance of the packing 30 falls similarly to embodiment.

  In addition, the packing 30 of the first modification includes a small portion 37 in which the core member 32-1 has a smaller cross-sectional area than the normal portion 36. Thereby, the packing 30 is easy to elastically deform the core material 32-1. As a result, when the packing 30 is attached to the entire circumference of the outer peripheral surface 21 of the housing 20, the space surrounded on the inside can be easily expanded, the housing 20 can be easily passed on the inside, and can be easily attached to the housing 20. , Has the effect.

  Further, in the packing 30 according to the first modification, the normal portion 36 is provided on at least the flat surface 21a on the long side of the housing 20 as viewed from the front. Thereby, in the packing 30, the core member 32-1 on the flat side 21 a on the long side in the front view of the housing 20, which is easily misaligned, is not easily deformed, and the core member 32-1 has the concave portion 23 in the housing portion 33. Will be pressed against. As a result, since the accommodating portion 33 is pressed into the concave groove 23, the packing 30 can be prevented from coming out of the concave groove 23, and can be prevented from being displaced with respect to the outer peripheral surface 21 of the housing 20. When attached to the component 200, there is an effect that the waterproof performance of the packing 30 can be suppressed from being lowered.

[Modification 2]
FIG. 9 is a perspective view illustrating a schematic configuration of the connector packing according to the second modification of the embodiment. 10 is a cross-sectional view taken along line IX-IX in FIG. 9 and 10, the same parts as those in the embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 9 and 10, the core material 32-2 of the packing 30-2 of the connector 1 according to the modification 2 of the embodiment has a cross-sectional shape of a cross section along the front-rear direction passing through the central axis P. It is formed in a rectangle. In Modification 2, the long side direction of the cross section of the core material 32-2 is parallel to the front-rear direction. That is, the long side direction of the cross section of the core material 32-2 is parallel to the long side direction of the cross section of the housing portion 33.

  Also in the modified example 2, the core member 32-2 is embedded in the packing body 31 across the accommodating portion 33 and the outer peripheral surface mounting portion 34 in the circumferential direction, and the outer surface and inner periphery of the packing main body 31 are embedded. It is provided at a position where it is not exposed from the surface. Moreover, in the modification 2, the center part of the front-back direction of the core material 32-2 is provided between the top parts 35a of the two lip parts 35 in the front-back direction.

  According to the packing 30-2 of the modification 2 demonstrated above, there exists an effect that it can suppress that the waterproof performance of the packing 30-2 falls similarly to embodiment.

  Further, in the packing 30-2 of Modification 2, the cross-sectional shape of the cross section along the front-rear direction passing through the central axis P of the core material 32-2 is formed in a rectangular shape, and the long side of the cross section of the core material 32-2 is formed. The direction is parallel to the long side direction of the cross section of the accommodating portion 33. Thereby, when the packing 30-2 is attached to the counterpart component 200, the core material 32-2 is not easily elastically deformed even if it is going to be displaced, so that the core material 32-2 is particularly in the front-rear direction of the housing portion 33. It becomes easy to press both ends of the inside of the groove 23. As a result, in the packing 30-2, the accommodating portion 33 is pressed into the concave groove 23, so that the accommodating portion 33 is prevented from coming out of the concave groove 23, and the positional deviation with respect to the outer peripheral surface 21 of the housing 20 can be suppressed. When attached to the counterpart component 200, there is an effect that the waterproof performance of the packing 30-2 can be suppressed from being lowered.

  The packings 30 and 30-2 according to the present invention are not limited to the above-described embodiments and modifications, and various modifications can be made within the scope described in the claims. For example, the packings 30 and 30-2 according to the present invention can variously change the cross-sectional shape of the core members 32, 32-1, and 32-2, and the cross-sectional shape of the notch 37a, that is, the small portion 37. In the present invention, the packings 30, 30-2 are added on the long side plane 21 a in front view, the normal portion 36 is provided on the short side plane 21 a, and only on the four corners 21 b of the housing 20. A small portion 37 may be provided. In the present invention, the core members 32, 32-1, and 32-2 do not have to be provided on the entire circumference of the housing 20 by providing a notch or the like. Furthermore, the present invention may be applied to a waterproof connector that is not electrically shielded.

DESCRIPTION OF SYMBOLS 1 Connector 10 Terminal metal fitting 20 Housing 21 Outer peripheral surface 21a Plane 30, 30-2 Packing 31 Packing main body 32, 32-1, 32-2 Core material 33 Housing part 34 Outer peripheral surface mounting part 35 Lip part 35a Top part 36 Normal part 37 Small part 151 Wire harness 200 Mating part 201 Electric wire

Claims (6)

A packing body made of a synthetic resin that is elastically deformable and is attached to the entire circumference of the outer peripheral surface of the housing that is formed in a polygonal shape in front view and attached to the counterpart component;
A core material embedded in the packing body and made of a synthetic resin harder than the synthetic resin constituting the packing body, and
The packing body is
An accommodating portion accommodated in a concave groove provided on an outer peripheral surface of the housing;
An outer peripheral surface mounting portion that is integral with the housing portion and provided on the outer peripheral surface of the housing;
A lip portion that is integral with the outer peripheral surface mounting portion and waterproofs between the counterpart component;
The core material is embedded in the packing body across the housing portion and the outer peripheral surface mounting portion,
Packing. The packing body is provided with two lip portions spaced apart in the front-rear direction,
In the front-rear direction, at least a part of the core material is provided between the top portions of the two lip portions that protrude most from the outer peripheral surface of the housing.
The packing according to claim 1. The core material is
A normal portion having a constant cross-sectional area along the front-rear direction;
The packing according to claim 1, further comprising: a small-sized portion having a cross-sectional area along the front-rear direction smaller than the normal portion. The normal portion is provided on a plane of the outer peripheral surface of the housing;
The packing according to claim 3. A housing in which the front view is formed in a polygonal shape and is attached to the counterpart component;
A terminal fitting housed in the housing and electrically connected to the counterpart component;
A packing attached to the outer peripheral surface of the housing and waterproofing between the mating parts; and
The packing is
A packing body that is attached to the entire circumference of the outer peripheral surface of the housing and is made of an elastically deformable synthetic resin;
A core material embedded in the packing body and made of a synthetic resin harder than the synthetic resin constituting the packing body, and
The packing body is
An accommodating portion accommodated in a concave groove provided on an outer peripheral surface of the housing;
An outer peripheral surface mounting portion that is integral with the housing portion and provided on the outer peripheral surface of the housing;
A lip portion that is integral with the outer peripheral surface mounting portion and waterproofs between the counterpart component;
The core material is embedded in the packing body across the housing portion and the outer peripheral surface mounting portion,
connector. A housing formed in a polygonal shape when viewed from the front and attached to the counterpart component, a terminal fitting housed in the housing and electrically connected to the counterpart component, and attached to the outer peripheral surface of the housing A gasket for waterproofing between the mating parts, and a connector,
An electric wire electrically connected to the terminal fitting,
The packing is attached to the entire circumference of the outer peripheral surface of the housing, and has a packing body made of an elastically deformable synthetic resin, and a synthetic resin embedded in the packing body and constituting the packing body. A core material composed of a hard synthetic resin,
The packing body is
An accommodating portion accommodated in a concave groove provided on an outer peripheral surface of the housing;
An outer peripheral surface mounting portion that is integral with the housing portion and provided on the outer peripheral surface of the housing;
A lip portion that is integral with the outer peripheral surface mounting portion and waterproofs between the counterpart component;
The core material is embedded in the packing body across the housing portion and the outer peripheral surface mounting portion,
Wire harness.

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