JP6671862B2 - Packing, connector and wire harness - Google Patents

Description

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

  2. Description of the Related Art Conventionally, as a connector for connecting to a counterpart component such as various electronic devices and a counterpart connector, a waterproof connector having a packing for waterproofing between the counterpart component and an outer peripheral surface of a housing that accommodates terminal fittings has been used. ing.

JP-A-2014-2262 JP 2014-154359 A

  By the way, in the connectors described in Patent Documents 1 and 2 described above, there is a possibility that the packing may be displaced with respect to the housing when the connector is attached to the mating component, particularly when the connector is obliquely approached to the mating component. Was. If the packing of the connector is displaced from the housing, the waterproof performance of the packing may be reduced.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a packing, a connector, and a wire harness that can suppress a decrease in waterproof performance of the packing.

In order to achieve the above object, a packing according to the present invention is formed of a synthetic resin that is formed in a polygonal shape in a front view and is attached to the entire outer peripheral surface of a housing attached to a mating component, and is elastically deformable. And a core material embedded in the packing body and made of a synthetic resin harder than the synthetic resin constituting the packing body, wherein the packing body is provided on an outer peripheral surface of the housing. An accommodating portion accommodated in the provided concave groove and provided with a small lip that is in close contact with the bottom of the concave groove , and an outer peripheral surface mounting portion provided integrally with the accommodating portion and provided on an outer peripheral surface of the housing. , integral with the outer peripheral surface mounting part, and provided with a lip portion for waterproofing between the mating parts, the front-rear direction of the width of the outer peripheral surface mounting portion, the longitudinal direction of the housing part Width Is large, the outer peripheral surface mounting part protrudes on both the front and rear in the longitudinal direction than the accommodating portion, the packing body includes two spaced apart said lip portion in said longitudinal direction, The small lip is provided on the entire circumference of the inner peripheral surface of the housing portion at an interval in the front-rear direction so as to protrude from the inner peripheral surface, and a cross section passing through the center axis of the core material In the above, the core material is embedded in the packing body over the housing portion and the outer peripheral surface mounting portion, and the entire core material is formed on the outer periphery of the housing of the two lip portions in the front-rear direction. It is provided between the tops most protruding from the surface and between the two small lips in the front-rear direction .

  In the packing, the core member includes a normal portion having a constant cross-sectional area along the front-rear direction and a small portion having a cross-sectional area along the front-rear direction smaller than the normal portion. be able to.

Further, in the packing, the housing is formed in a square cylindrical shape, and the outer peripheral surface has a plurality of planes and a corner between the planes, and the normal part has a long side. The small portion may be provided on the plane, and the small portion may be provided on the plane on four short sides and the short side .

In order to achieve the above object, a connector according to the present invention is formed in a polygonal shape when viewed from the front, and a housing attached to a counterpart component, and housed in the housing, and electrically connected to the counterpart component. A terminal fitting to be connected, and a packing attached to the outer peripheral surface of the housing to waterproof between the mating component, and the packing is attached to the entire outer peripheral surface of the housing, A packing main body made of an elastically deformable synthetic resin, and a core material embedded in the packing main body and made of a synthetic resin harder than the synthetic resin forming the packing main body; but housed in grooves provided on the outer peripheral surface of the housing, and a housing portion that small lip contact is provided at the bottom of the groove, integral with the housing part And an outer peripheral surface mounting portion provided on the outer peripheral surface of the housing, integral with the outer peripheral surface mounting part, and provided with a lip portion for waterproofing between the mating parts, the outer circumferential mounting surface longitudinal width of the portion is larger than the longitudinal width of the housing portion, the outer circumferential mounting surface portion protrudes on both the front and rear in the longitudinal direction than the accommodating portion, the packing The main body includes the two lip portions at intervals in the front-rear direction, and the small lip extends in the front-rear direction so as to protrude from the inner peripheral surface over the entire inner peripheral surface of the housing portion. two spaced, in a cross section passing through the center axis of the core, the core material is embedded in the gasket body over a said housing part the peripheral surface mounting part, the core The entirety of the material is the c of the two lip portions in the front-rear direction. Together provided between the top of the most prominent from the outer peripheral surface of managing, characterized in that provided between two of said small lip in the longitudinal direction.

In order to achieve the above object, a wire harness according to the present invention is formed in a polygonal shape in a front view, and has a housing attached to a mating component, and a housing accommodated in the housing and electrically connected to the mating component. A connector provided with a terminal fitting connected to the housing, a packing attached to the outer peripheral surface of the housing and waterproofing between the mating component, and an electric wire electrically connected to the terminal fitting, Wherein the packing is attached to the entire outer peripheral surface of the housing and is formed of a synthetic resin which is elastically deformable, and a composite which is embedded in the packing main body and forms the packing main body. comprising a core made of a hard synthetic resin than the resin, wherein the gasket body is accommodated in the concave groove provided on the outer peripheral surface of said housing, said concave A housing portion which small lip is provided in close contact with the bottom of, integral with the housing portion, and the outer peripheral surface mounting portion provided on the outer peripheral surface of the housing, integral with the outer peripheral surface mounting part, and and a lip portion for waterproofing between the mating parts, the front-rear direction of the width of the outer peripheral surface mounting part, the greater than the longitudinal direction of width of the housing portion, the outer peripheral surface mounting part is , Protruding both forward and rearward in the front-rear direction from the housing portion, the packing body includes two lips at intervals in the front-rear direction, and the small lip is provided inside the housing portion. On the entire periphery of the peripheral surface, two are provided at an interval in the front-rear direction so as to protrude from the inner peripheral surface, and in a cross-section passing through the center axis of the core, the core is wherein it is embedded in the packing main body over the outer circumferential surface mounting portion and And wherein the entirety of the core material, wherein with provided between the top of the most prominent from the outer peripheral surface of the housing of two of the lip portion in the longitudinal direction, is provided between two of said small lip in the longitudinal direction I do.

  In the packing according to the present invention, a core member made of a synthetic resin harder than the synthetic resin forming the packing body is embedded in the packing body. Further, the packing is provided integrally with a housing portion in which the packing body is housed in the concave groove of the housing and an outer peripheral surface mounting portion provided on the outer peripheral surface of the housing, and the core material is provided with the housing portion and the outer peripheral surface mounting portion. And is provided over. As a result, when the packing is mounted on the mating component, the core material is unlikely to be elastically deformed even if the packing is displaced, so that the core material presses the housing portion into the concave groove. As a result, since the packing is pressed into the groove, the container is prevented from falling out of the groove, the displacement from the outer peripheral surface of the housing can be suppressed, and when the packing is attached to the mating part. In addition, there is an effect that a reduction in the waterproof performance of the packing can be suppressed.

FIG. 1 is a perspective view illustrating a schematic configuration of the connector according to the embodiment. FIG. 2 is a cross-sectional view illustrating a schematic configuration of the connector according to the embodiment. FIG. 3 is a cross-sectional view illustrating a state where the connector according to the embodiment is attached to a mating component. FIG. 4 is a perspective view illustrating a schematic configuration of the packing of the connector according to the embodiment. FIG. 5 is a sectional view taken along line VV in FIG. FIG. 6 is a perspective view illustrating a schematic configuration of a 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 the line VIII-VIII in FIG. FIG. 9 is a perspective view illustrating a schematic configuration of a packing of the connector according to Modification 2 of the embodiment. FIG. 10 is a sectional view taken along line XX in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by the embodiment. The components 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 the connector according to the embodiment. FIG. 2 is a cross-sectional view illustrating a schematic configuration of the connector according to the embodiment. FIG. 3 is a cross-sectional view illustrating a state where the connector according to the embodiment is attached to a mating component. FIG. 4 is a perspective view illustrating a schematic configuration of the packing of the connector according to the embodiment. FIG. 5 is a sectional view taken along line VV in FIG.

  The connector 1 shown in FIG. 1 according to the present embodiment is mounted on a vehicle such as an automobile, and supplies electric power between inverters and motors and supplies electric signals to various electronic devices. Here, as shown in FIG. 3, the connector 1 is incorporated in an electronic device 150 such as an inverter, and is attached to a mating component 200 containing therein 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 electric power or an electric signal to an electronic device or the like, for example, by being attached to a mating component 200 constituting the wire harness 151.

  In the present embodiment, the mating component 200 includes a terminal fitting 202 attached to a terminal of the electric wire 201, an insulating housing 203 that accommodates the terminal fitting 202, and a conductive shield shell 204 that covers the housing 203. This is a so-called shielded connector that suppresses electrical noise generated by a current flowing through the terminal fitting 202 or the like from leaking to the outside. The connector 1 is attached to the counterpart component 200 and supplies power to an inverter, a motor, and the like. Further, when the connector 1 is attached to a shielded connector as the mating component 200, the connector 1 includes an electric wire 201 or the like that is electrically connected to a terminal fitting 202 at a terminal or the like, and a wire harness 151 wired to a vehicle such as an automobile. Constitute. That is, the wire harness 151 includes at least the connector 1 and the electric wire 201.

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

  The terminal fitting 10 is housed in the housing 20 and is electrically connected to the terminal fitting 202 of the mating component 200 when the connector 1 is attached to the mating 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, a bending process, or the like. When the shield connector as the mating component 200 is attached to the connector 1, the terminal fitting 10 is electrically connected to the electric wire 201 via the terminal fitting 202 of the mating 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 connection part electrically connected to an electronic device 150 such as an inverter and an electric contact part 11 electrically connected to the terminal fitting 202 of the mating component 200. In preparation. In the present embodiment, the electric contact portion 11 is formed in a cylindrical shape that extends linearly along a direction approaching the mating component 200 when the connector 1 is attached to the mating component 200. In the present embodiment, the electric contact portion 11 houses the terminal fitting 202 therein and connects to the terminal fitting 202.

  Note that the direction in which the connector 1 approaches the mating component 200 when attached to the mating component 200, that is, the longitudinal direction of the electrical contact portion 11, is referred to as the front-back direction of the connector 1. The direction approaching is referred to as a front side, the direction moving away from the front is referred to as a rear side, and the direction viewed from the front side in the front-rear direction is referred to as a front view. In addition, a circumferential direction around a central axis P (shown by a dashed line in FIG. 1 and the like) parallel to the front-rear direction of the connector 1 is referred to as a circumferential direction.

  Further, the terminal fitting 10 has the electric contact portion 11 and the electric wire connection 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 mating 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 mating component 200. In the present embodiment, the housing 20 is entirely made of insulating synthetic resin or the like, and is molded using a mold or the like. The housing 20 is formed in a quadrangular cylindrical shape having a polygonal appearance. Thus, the housing 20 is formed in a quadrangular shape that is polygonal in a front view. The housing 20 houses the terminal fittings 10 electrically insulated from each other.

  Note that, in the present invention, a polygonal shape in a front view means that the outer peripheral surface 21 of the housing 20 has a plurality of flat surfaces 21a and corner portions 21b between the flat surfaces 21a, and the flat surface 21a is flat. In addition to those having a slight curvature, those having a sharp corner and those having a curved surface are also included. In the present embodiment, the outer peripheral surface 21 of the housing 20 has four flat planes 21a and four curved corners 21b between the planes 21a.

  Further, in the present embodiment, a plurality of housings 20 are connected by a 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 to each other. Both surfaces of the flange member 22 are orthogonal to the front-back direction. The housing 20 is inserted into the shield shell 204 of the mating component 200 on the front side of the flange member 22, and the housing 203 is inserted on the front side of the flange member 22 and attached to the mating component 200.

  In addition, a concave groove 23 is provided on the outer peripheral surface 21 of the housing 20 over the entire circumference in the circumferential direction. Specifically, the concave groove 23 is provided on the outer peripheral surface 21 of the housing 20 on the front side of the flange member 22. The cross-sectional shape of the concave groove 23 along the front-rear direction passing through the center axis P of the housing 20 is formed in a rectangular shape.

  Further, at the front end of the housing 20, a front flange 24 is provided on the entire circumference in the circumferential direction. Specifically, the front flange 24 is a protrusion that protrudes in the outer peripheral direction from the front end of the housing 20. The 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 outer circumferential surface 21 of the housing 20 in the circumferential direction, and waterproofs the space between the housing 20 and the mating component 200. Specifically, the packing 30 includes a packing main body 31 and a core material 32, as shown in FIGS.

  The packing main body 31 is a structural body constituting the main body of the packing 30 and is attached to the entire 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, for example, various synthetic rubbers such as silicon rubber, acrylic rubber, and fluoro rubber. As the synthetic rubber constituting the packing body 31, a waterproof rubber or an oil-proof rubber 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 the present embodiment, the outer edge of the packing body 31 is formed in a substantially square shape when viewed from the front.

  Specifically, the packing body 31 integrally includes a housing portion 33, an outer peripheral surface mounting portion 34, and a lip portion 35. The housing portion 33 is housed in the concave groove 23. The cross-sectional shape of the cross-section along the front-rear direction passing through the center axis P of the housing portion 33 is formed in a rectangular shape having substantially the same shape as the concave groove 23. In the present embodiment, the long side direction of the cross section of the housing portion 33 is parallel to the front-back direction. Further, in the present embodiment, small lips 33a which are in close contact with the bottom surface of the concave groove 23 are provided at intervals in the front-rear direction on the entire inner peripheral surface of the housing portion 33. The small lip 33a is convex from the inner peripheral surface of the housing portion 33.

  The outer peripheral surface mounting portion 34 is provided integrally with the housing portion 33 and on the outer peripheral surface 21 of the housing 20. The outer peripheral surface mounting portion 34 is provided on the outer peripheral side of the housing portion 33, and the width of the outer peripheral surface mounting portion 34 in the front-rear direction is larger than the width of the housing portion 33 in the front-rear direction. In the present embodiment, the outer peripheral surface mounting portion 34 protrudes to both the front side and the rear side of the housing portion 33. The outer peripheral surface mounting portion 34 is provided between the flange member 22 and the front flange 24 when the housing 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 amount of protrusion of the front flange 24 from the outer peripheral surface 21 of the housing 20.

  The lip portion 35 is integral with the outer peripheral surface mounting portion 34 and waterproofs the space between the lip portion 35 and the shield shell 204 of the mating component 200. The lip portion 35 is convex from the outer peripheral surface mounting portion 34 in the outer peripheral direction. The lip portion 35 is provided on the entire circumference of the outer peripheral surface mounting portion 34. In the present embodiment, two lip portions 35 are provided at an interval 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 whose width in the front-rear direction gradually decreases toward the outer periphery.

  The core material 32 is embedded in the packing body 31 and made of a synthetic resin harder than the synthetic resin forming the packing body 31. In the present embodiment, the core material 32 is buried all around the packing body 31. The core material 32 is made of a synthetic resin such as PBT (polybutylene terephthalate) or PBT-GF, preferably, various engineering plastics. As the synthetic resin constituting the core material 32, a synthetic resin such as an engineering plastic which has elasticity to allow the packing 30 to be attached to the concave groove 23 of the housing 20 and is 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 the present embodiment, a front view of the outer edge of the core material 32 is formed in a substantially square shape.

  As shown in FIG. 5, the cross-sectional shape of the cross-section along the front-rear direction passing through the center axis P of the core material 32 is formed in a round shape (a circular shape in the present embodiment). In the present embodiment, the cross-sectional shape of the core material 32 along the front-rear direction 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.

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

  In the packing 30 having the above-described configuration, the packing body 31 and the core material 32 are integrally formed using a mold or the like. The packing 30 is pulled in the outer peripheral direction so as to widen the space enclosed on the inside, 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 mounting portion 34 is accommodated between the flange member 22 and the front flange 24. It is attached.

  The connector 1 having the above-described configuration is assembled by housing the terminal fitting 10 in the housing 20 and mounting the packing 30 around the entire outer peripheral surface 21 of the housing 20. The connector 1 is inserted into the electronic device 150 on the rear side of the flange member 22 of the housing 20, and the flange member 22 is fixed to the case 150 a of the electronic device 150 by a bolt (not shown) or the like. The connector 1 assembled in this manner is attached to the mating component 200 and mounted on a vehicle such as an automobile. When the connector 1 is attached to the mating component 200, the packing 30, in particular, the lip portion 35 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 component 200. Closely contact both sides to waterproof between them. When the connector 1 is attached to the mating component 200, the connector 1 is fixed to the mating component 200 by a bolt (not shown) or the like.

  When the connector 1 is attached to the mating component 200, the packing 30 may come into contact with the shield shell 204 of the mating component 200, and the packing 30 may shift with respect to the housing 20. Then, the core material 32, which is harder than the packing body 31, is embedded in the packing body 31 in the circumferential direction over the housing portion 33 and the outer peripheral surface mounting portion 34, so that the core material 32 makes the housing portion 33 a groove. 23. Therefore, when the connector 1 is attached to the mating 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 forming the packing main body 31 is embedded in the packing main body 31. 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 over the accommodation portion 33 and the outer peripheral surface mounting portion 34. Thus, when the packing 30 is attached to the counterpart component 200, the core material 32 is unlikely to be elastically deformed even if the packing 30 is displaced, so that the core material 32 presses the housing portion 33 into the concave groove 23. . As a result, since the housing portion 33 is pressed into the concave groove 23, the packing 30 can prevent the housing portion 33 from coming out of the concave groove 23, can suppress the displacement of the housing 20 with respect to the outer peripheral surface 21, and can prevent the housing 30 from being displaced. When attached to the component 200, the effect that the waterproof performance of the packing 30 can be suppressed from being reduced is exerted. Further, the packing 30 has a core material 32 provided over the accommodation portion 33 and the outer peripheral surface mounting portion 34. Thereby, the packing 30 can be easily attached to the outer peripheral surface 21 of the housing 20 because the inner peripheral portion of the housing portion 33 near the core material 32 is easily deformed so as to expand the space enclosed inside.

  In the packing 30, the core material 32 is provided between the tops 35a of the two lip portions 35 in the front-rear direction. As a result, the core member 32 is disposed in the accommodation portion 33 in the front-rear direction. In the present embodiment, the entire core material 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 material 32 presses the housing portion 33 into the concave groove 23 even if the packing 30 is to be displaced, and the displacement of the housing 20 relative to the outer peripheral surface 21 is reduced. Can be suppressed.

  Since the connector 1 described above includes the above-described packing 30, it has an effect that the waterproof performance of the packing 30 can be prevented from being reduced.

  In addition, since the wire harness 151 described above includes the above-described packing 30, it has an effect that the waterproof performance of the packing 30 of the connector 1 can be prevented from being reduced.

[Modification 1]
FIG. 6 is a perspective view illustrating a schematic configuration of a 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 the 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 will be omitted.

  The core material 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 is 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 in which the cross-sectional shape of the core material 32-1 in the front-rear direction is constant, that is, the cross-sectional shape and the cross-sectional area in the front-rear direction 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 material 32-1 is round (circular) and the outer diameters are 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, at least on the flat surface 21 a on the long side in front view.

  The small portion 37 is a portion having a smaller cross-sectional area than the normal portion 36 in a cross section passing through the central axis P and along 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-back direction of the core material 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 cutout 37a cuts out the core material 32-1 by １ ／ of the cross section from the outer peripheral side toward the inner peripheral side. The small-sized portion 37 is a semi-circular (semi-circular) portion having a cross-sectional shape along the front-rear direction of the core material 32-1. When the packing 30 is attached to the outer peripheral surface 21 of the housing 20, the small-sized portion 37 is formed on the four corners 21b of the housing 20 and the flat surface 21a on the short side in front view in the circumferential direction of the core 32-1. Provided at intervals. The small portion 37 facilitates elastic deformation of the core material 32-1 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 first modification described above, similarly to the embodiment, there is an effect that a reduction in the waterproof performance of the packing 30 can be suppressed.

  Further, the packing 30 of the first modification includes a small portion 37 in which the core material 32-1 has a smaller sectional area than the normal portion 36. Thereby, in the packing 30, the core material 32-1 is easily elastically deformed. As a result, when the packing 30 is attached to the entire periphery of the outer peripheral surface 21 of the housing 20, it becomes easy to widen the space that surrounds the inside, and it is easy to pass the housing 20 inside, so that the packing 30 can be easily attached to the housing 20. The effect is as follows.

  In the packing 30 of the first modification, the normal portion 36 is provided at least on the flat surface 21 a on the long side of the housing 20 when viewed from the front. Thereby, the packing 30 is particularly difficult to deform the core material 32-1 on the long side surface 21a of the housing 20 which is easily misaligned when viewed from the front, and the core material 32-1 divides the housing portion 33 into the concave groove 23. Will be pressed. As a result, since the housing portion 33 is pressed into the concave groove 23, the packing 30 can prevent the housing portion 33 from slipping out of the concave groove 23, can suppress the displacement of the housing 20 with respect to the outer peripheral surface 21, and can suppress the displacement. When attached to the component 200, the effect that the waterproof performance of the packing 30 can be suppressed from being reduced is exerted.

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

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

  In the second modification as well, the core material 32-2 is embedded in the packing body 31 in the circumferential direction across the housing portion 33 and the outer peripheral surface mounting portion 34, and the outer surface and the inner circumferential surface of the packing body 31 are provided. It is provided at a position that is not exposed from the surface. In the second modification, the central portion of the core material 32-2 in the front-rear direction is provided between the tops 35a of the two lip portions 35 in the front-rear direction.

  According to the packing 30-2 of Modification 2 described above, it is possible to suppress the reduction in the waterproof performance of the packing 30-2, as in the embodiment.

  In the packing 30-2 of the second modification, the cross-sectional shape of the cross-section along the front-rear direction passing through the center axis P of the core 32-2 is formed in a rectangular shape, and the long side of the cross-section of the core 32-2 is formed. The direction is parallel to the long side direction of the cross section of the housing portion 33. As a result, when the packing 30-2 is attached to the mating component 200, the core material 32-2 is not easily elastically deformed even if the packing material 30-2 is displaced. Are easily pressed into the concave groove 23. As a result, the packing 30-2 presses the housing portion 33 into the concave groove 23, so that the housing portion 33 is prevented from falling out of the concave groove 23, and the displacement of the housing 20 with respect to the outer peripheral surface 21 can be suppressed. When attached to the counterpart component 200, the effect that the waterproof performance of the packing 30-2 can be suppressed from being reduced is exerted.

  The packings 30 and 30-2 according to the present invention are not limited to the above-described embodiments and modified examples, and various modifications can be made within the scope described in the claims. For example, in the packings 30 and 30-2 according to the present invention, the cross-sectional shapes of the core members 32, 32-1 and 32-2, and the notch 37a, that is, the cross-sectional shape of the small portion 37 can be variously changed. In the present invention, the packings 30 and 30-2 are provided on the long side flat surface 21 a in the front view, the normal portion 36 is provided on the short side flat surface 21 a, and only on the four corner portions 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 may not be provided on the entire circumference of the housing 20 by providing notches or the like. Further, the present invention may be applied to a waterproof connector that is not electrically shielded.

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

Claims (5)

A packing body which is formed in a polygonal shape in front view and is attached to the entire outer peripheral surface of the housing attached to the counterpart component, 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,
The packing body,
An accommodating portion accommodated in a concave groove provided on the outer peripheral surface of the housing and provided with a small lip that is in close contact with the bottom of the concave groove ,
An outer peripheral surface mounting portion integral with the housing portion and provided on an outer peripheral surface of the housing;
A lip portion integral with the outer peripheral surface mounting portion and waterproofing between the counterpart component,
The width of the outer peripheral surface mounting portion in the front-rear direction is larger than the width of the housing portion in the front-rear direction,
The outer peripheral surface mounting portion protrudes to both the front side and the rear side in the front-rear direction than the storage portion,
The packing body includes two lip portions spaced apart in the front-rear direction,
The small lip is provided at intervals in the front-rear direction so as to be convex from the inner peripheral surface on the entire periphery of the inner peripheral surface of the housing portion,
In a cross section passing through the center axis of the core material, the core material is embedded in the packing body over the housing portion and the outer peripheral surface mounting portion, and the entire core material is in the front-rear direction. The two lip portions are provided between the top portions most protruding from the outer peripheral surface of the housing, and are provided between the two small lips in the front-rear direction .
Packing. The core material,
A normal section having a constant cross-sectional area along the front-rear direction,
A small portion having a cross-sectional area along the front-back direction smaller than the normal portion.
The packing according to claim 1 . The housing is formed in a square tubular shape, and the outer peripheral surface has a plurality of planes and a corner between the planes, and the normal part is provided on the plane on a long side. , The small portion is provided on the four corners and the plane on the short side,
The packing according to claim 2 . A housing formed in a polygonal shape in a front view, and attached to a mating component;
A terminal fitting housed in the housing and electrically connected to the mating component;
A packing attached to the outer peripheral surface of the housing and waterproofing the space between the housing and the mating component.
The packing is
A packing body attached to the entire outer peripheral surface of the housing and 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,
The packing body,
An accommodating portion accommodated in a concave groove provided on the outer peripheral surface of the housing and provided with a small lip that is in close contact with the bottom of the concave groove ,
An outer peripheral surface mounting portion integral with the housing portion and provided on an outer peripheral surface of the housing;
A lip portion integral with the outer peripheral surface mounting portion and waterproofing between the counterpart component,
The width of the outer peripheral surface mounting portion in the front-rear direction is larger than the width of the housing portion in the front-rear direction,
The outer peripheral surface mounting portion protrudes to both the front side and the rear side in the front-rear direction than the storage portion,
The packing body includes two lip portions spaced apart in the front-rear direction,
The small lip is provided at intervals in the front-rear direction so as to be convex from the inner peripheral surface on the entire periphery of the inner peripheral surface of the housing portion,
In a cross section passing through the center axis of the core material, the core material is embedded in the packing body over the housing portion and the outer peripheral surface mounting portion, and the entire core material is in the front-rear direction. The two lip portions are provided between the top portions most protruding from the outer peripheral surface of the housing, and are provided between the two small lips in the front-rear direction .
connector. A housing which is formed in a polygonal shape in a front view and is attached to a mating component, a terminal fitting housed in the housing and electrically connected to the mating component, and attached to an outer peripheral surface of the housing. A connector provided with a packing for waterproofing between the counterpart parts, and an electric wire electrically connected to the terminal fitting,
The packing is attached to the entire periphery of the outer peripheral surface of the housing, and a packing main body made of an elastically deformable synthetic resin, and a synthetic resin embedded in the packing main body and forming the packing main body. A core made of hard synthetic resin,
The packing body,
An accommodating portion accommodated in a concave groove provided on the outer peripheral surface of the housing and provided with a small lip that is in close contact with the bottom of the concave groove ,
An outer peripheral surface mounting portion integral with the housing portion and provided on an outer peripheral surface of the housing;
A lip portion integral with the outer peripheral surface mounting portion and waterproofing between the counterpart component,
The width of the outer peripheral surface mounting portion in the front-rear direction is larger than the width of the housing portion in the front-rear direction,
The outer peripheral surface mounting portion protrudes to both the front side and the rear side in the front-rear direction than the storage portion,
The packing body includes two lip portions spaced apart in the front-rear direction,
The small lip is provided at intervals in the front-rear direction so as to be convex from the inner peripheral surface on the entire periphery of the inner peripheral surface of the housing portion,
In a cross section passing through the center axis of the core material, the core material is embedded in the packing body over the housing portion and the outer peripheral surface mounting portion, and the entire core material is in the front-rear direction. The two lip portions are provided between the top portions most protruding from the outer peripheral surface of the housing, and are provided between the two small lips in the front-rear direction .
Wire harness.

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