WO2021005998A1 - Connector - Google Patents

Connector Download PDF

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Publication number
WO2021005998A1
WO2021005998A1 PCT/JP2020/024002 JP2020024002W WO2021005998A1 WO 2021005998 A1 WO2021005998 A1 WO 2021005998A1 JP 2020024002 W JP2020024002 W JP 2020024002W WO 2021005998 A1 WO2021005998 A1 WO 2021005998A1
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WO
WIPO (PCT)
Prior art keywords
rubber ring
peripheral surface
connector
outer peripheral
mounting hole
Prior art date
Application number
PCT/JP2020/024002
Other languages
French (fr)
Japanese (ja)
Inventor
基泰 安藤
Original Assignee
住友電装株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友電装株式会社 filed Critical 住友電装株式会社
Publication of WO2021005998A1 publication Critical patent/WO2021005998A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases

Definitions

  • This disclosure relates to connectors.
  • a connector attached to a case of an electric device mounted on a vehicle is known (see, for example, Patent Document 1).
  • This type of connector has an insertion portion that can be inserted into a mounting hole provided in the case.
  • a rubber ring is attached to the outer peripheral surface of the insertion portion to waterproof (seal) the space between the inner peripheral surface of the mounting hole and the insertion portion by adhering to the inner peripheral surface of the mounting hole and the outer peripheral surface of the insertion portion. ing.
  • the rubber ring mounted on the outer peripheral surface of the insertion portion enters the mounting hole, so that the rubber ring and the inner peripheral surface of the mounting hole are connected. Friction occurs between them, increasing the insertion resistance of the connector to the mounting holes.
  • the friction coefficient varies depending on the material of the case, the surface condition of the mounting hole, and the like. If this friction coefficient becomes high, it may not be possible to attach the connector to the case.
  • An object of the present disclosure is to provide a connector capable of reducing insertion resistance to a mounting hole.
  • the connectors of the present disclosure are provided on a connector housing that is inserted into a mounting hole of a mating case along an insertion direction and an outer peripheral surface of the connector housing, and the outer peripheral surface of the connector housing and the inner peripheral surface of the mounting hole. It has a first rubber ring for waterproofing between the two, and a second rubber ring provided on the outer peripheral surface of the connector housing.
  • the second rubber ring is made of oil-containing rubber containing oil and is composed of the first rubber.
  • the 2 rubber rings are provided on the front side of the first rubber ring in the insertion direction, and the second rubber ring is set to have a smaller crushing allowance than the first rubber ring.
  • FIG. 1 is a schematic configuration diagram showing a conductive path of one embodiment.
  • FIG. 2 is a schematic perspective view showing a connector of one embodiment.
  • FIG. 3A is a schematic cross-sectional view showing a connector of one embodiment, and
  • FIG. 3B is a partially enlarged view of FIG. 3A.
  • FIG. 4 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment.
  • FIG. 5 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment.
  • FIG. 6 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment.
  • FIG. 7 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment.
  • the connector of the present disclosure is provided on a connector housing that is inserted into a mounting hole of a mating case along an insertion direction and an outer peripheral surface of the connector housing, and is provided on the outer peripheral surface of the connector housing and the mounting hole. It has a first rubber ring for waterproofing between the inner peripheral surface and a second rubber ring provided on the outer peripheral surface of the connector housing, and the second rubber ring is made of oil-containing rubber containing oil.
  • the second rubber ring is provided on the front side in the insertion direction of the first rubber ring, and the second rubber ring is set to have a smaller crushing allowance than the first rubber ring.
  • the second rubber ring is provided on the front side in the insertion direction with respect to the first rubber ring, when the connector housing of the connector is inserted into the mounting hole of the mating case, it is formed on the inner peripheral surface of the mounting hole.
  • the outer peripheral surface of the second rubber ring comes into contact with the first rubber ring before the first rubber ring.
  • the second rubber ring is made of oil-containing rubber containing oil and the oil exudes from the surface of the second rubber ring, the oil is applied to the inner peripheral surface of the mounting hole.
  • the inner peripheral surface of the mounting hole and the outer peripheral surface of the first rubber ring come into contact with each other with the oil acting as a lubricant applied to the inner peripheral surface of the mounting hole.
  • the friction coefficient between the inner peripheral surface of the mounting hole and the outer peripheral surface of the first rubber ring can be reduced by the oil applied to the inner peripheral surface of the mounting hole. Therefore, for example, even if the friction coefficient increases due to the material of the mating case or the surface condition of the inner peripheral surface of the mounting hole, the friction coefficient can be reduced by the oil applied to the inner peripheral surface of the mounting hole. it can. As a result, it is possible to suppress an increase in the insertion resistance of the connector into the mounting hole, so that the connector can be suitably inserted into the mounting hole. As a result, the connector can be suitably attached to the mating case.
  • the crushing allowance of the second rubber ring is set to be smaller than the crushing allowance of the first rubber ring. As a result, it is possible to prevent the friction coefficient between the outer peripheral surface of the second rubber ring and the inner peripheral surface of the mounting hole from becoming high. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector with respect to the mounting hole due to the provision of the second rubber ring.
  • the first rubber ring is made of oil-containing rubber containing oil, and it is preferable that the oil content of the second rubber ring is set higher than the oil content of the first rubber ring.
  • the oil content of the rubber ring in the present specification is the ratio of the oil contained in the unit volume of the rubber ring.
  • the durometer A hardness of the second rubber ring is set lower than the durometer A hardness of the first rubber ring.
  • the first rubber ring has an outer peripheral lip portion formed so as to protrude outward in the radial direction of the first rubber ring from the outer peripheral surface of the first rubber ring, and the second rubber ring has a lip portion. It is preferable that the O-ring has a circular cross section.
  • the coefficient of friction between the outer peripheral surface of the second rubber ring and the inner peripheral surface of the mounting hole can be reduced as compared with the case where the second rubber ring has a lip portion. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector with respect to the mounting hole due to the provision of the second rubber ring.
  • the connector housing has a first accommodating groove formed so as to be recessed inward in the radial direction from the outer peripheral surface of the connector housing, and radially inward from the outer peripheral surface of the connector housing. It has a second accommodating groove formed so as to be recessed, and the first accommodating groove and the second accommodating groove are provided apart from each other in the insertion direction, and the second accommodating groove is the second accommodating groove. It is provided on the front side in the insertion direction with respect to the first housing groove, the first rubber ring is housed in the first housing groove, and the second rubber ring is housed in the second housing groove. ing.
  • the first rubber ring is accommodated in the first accommodating groove, and the second rubber ring is accommodated in the second accommodating groove.
  • the displacement of the first rubber ring and the second rubber ring in the insertion direction can be suppressed.
  • the conductive path 10 shown in FIG. 1 electrically connects two or three or more electric devices (equipment).
  • the conductive path 10 has a wire harness 20 and a pair of device-side connectors 30 connected to both ends of the wire harness 20.
  • the conductive path 10 electrically connects an inverter 11 installed at the front of a vehicle such as a hybrid vehicle or an electric vehicle with a high-pressure battery 12 installed at the rear of the vehicle with respect to the inverter 11.
  • the conductive path 10 is arranged so as to pass under the floor of the vehicle, for example.
  • the inverter 11 is connected to a wheel drive motor (not shown) that is a power source for traveling the vehicle.
  • the inverter 11 generates AC power from the DC power of the high-pressure battery 12 and supplies the AC power to the motor.
  • the high voltage battery 12 is, for example, a battery capable of supplying a voltage of several hundred volts.
  • the wire harness 20 includes a plurality of (two in this embodiment) electric wires 21, a pair of electric wire side connectors 22 attached to both ends of the electric wires 21, and a protective tube 23 that collectively surrounds the plurality of electric wires 21. have.
  • One wire-side connector 22 is connected to the device-side connector 30 attached to the inverter 11, and the other wire-side connector 22 is connected to the device-side connector 30 attached to the high-voltage battery 12.
  • the protective tube 23 for example, a corrugated tube made of metal or resin, a resin or the like, a flexible corrugated tube, a rubber waterproof cover, or a combination thereof can be used.
  • the protective tube 23 protects, for example, the electric wire 21 housed therein from flying objects and liquids.
  • Each connector 30 is fixed to a conductive case 15 of an electric device such as an inverter 11 and a high-voltage battery 12.
  • Each electric wire side connector 22 is fitted to each connector 30, and each electric wire side connector 22 is electrically connected.
  • a metal material such as iron-based or aluminum-based can be used.
  • the case 15 has a box-shaped case body 16 and a tubular mounting portion 17 that is integrally provided with the case body 16 and protrudes to the outside of the case body 16. ..
  • the mounting portion 17 is formed in a tubular shape by having a mounting hole 17X penetrating the mounting portion 17.
  • the mounting hole 17X is formed so as to communicate the internal space S1 of the case body 16 and the external space of the case body 16.
  • the mounting hole 17X is formed, for example, into a flat shape having a longitudinal direction and a lateral direction when viewed from the penetrating direction.
  • the "flat shape” includes, for example, a rectangle, an oval shape, an ellipse shape, and the like.
  • the "rectangle” in the present specification has a long side and a short side, excluding a square. Further, the “rectangle” in the present specification includes a shape in which the ridge portion is chamfered and a shape in which the ridge portion is rounded.
  • the “oval” in the present specification is a shape consisting of two parallel lines of substantially equal length and two semicircles.
  • the mounting hole 17X of the present embodiment is formed in an oval shape when viewed from the penetrating direction. Further, the mounting portion 17 of the present embodiment is formed in a substantially long cylindrical shape.
  • the connector 30 can be mounted on the case 15 in any direction according to the posture of the mounting portion 17, but in the present embodiment, the structure of the connector 30 will be described with the through direction of the mounting hole 17X as the front-rear direction.
  • the X-axis in the XYZ axes represents the front-back direction of the connector 30, the Y-axis represents the left-right direction (width direction) of the connector 30 orthogonal to the X-axis, and the Z-axis is orthogonal to the XY plane. It represents the vertical direction (height direction) of the connector 30.
  • the direction extending along the X axis is referred to as the front-back direction X
  • the direction extending along the Y axis is referred to as the left-right direction Y
  • the direction extending along the Z axis is referred to as the vertical direction Z.
  • the X arrow direction in FIG. 2 is forward
  • the Y arrow direction is left
  • the Z arrow direction is upward.
  • the case 15 has a fixing portion 18 for fixing the connector 30 to the case 15.
  • the fixing portion 18 is formed so as to project to the outside of the case body 16, for example.
  • the fixing portion 18 is formed integrally with the mounting portion 17, for example.
  • the fixing portion 18 is provided, for example, side by side with the mounting portion 17 in the left-right direction Y.
  • the fixing portion 18 of the present embodiment is provided on the left side of the mounting portion 17.
  • a bolt fixing hole 18X is formed in the fixing portion 18.
  • the bolt fixing hole 18X is formed so as to extend in the front-rear direction X, for example.
  • the connector 30 includes, for example, a connector housing 40 and a plurality of (two in this embodiment) terminal fittings 50 mounted on the connector housing 40.
  • the connector 30 includes, for example, a rubber ring 60 mounted on the outer peripheral surface of the connector housing 40, a rubber ring 70 mounted on the outer peripheral surface of the connector housing 40, and a rubber ring 80 mounted on the outer peripheral surface of the connector housing 40.
  • the connector housing 40 has, for example, a substantially tubular shape extending in the front-rear direction X.
  • the connector housing 40 is formed in a flat shape that is longer in the left-right direction Y than in the up-down direction Z, for example.
  • the connector housing 40 has a hood portion 41 arranged on the outside of the case 15 and an insertion portion 42 inserted into the mounting hole 17X of the case 15.
  • the connector housing 40 is, for example, a single component in which the hood portion 41 and the insertion portion 42 are connected in the front-rear direction X and integrally formed.
  • an insulating material such as a synthetic resin can be used.
  • the hood portion 41 is formed in a flat shape that is longer in the left-right direction Y than in the up-down direction Z, for example.
  • the outer peripheral shape of the hood portion 41 is, for example, an oval shape and a tubular shape extending in the front-rear direction.
  • the hood portion 41 of the present embodiment is formed in a long cylindrical shape.
  • a fixing portion 43 protruding outward in the radial direction of the hood portion 41 is formed on the outer peripheral surface of the front end of the hood portion 41.
  • the fixing portion 43 is formed in a substantially plate shape, for example.
  • the fixing portion 43 is formed with a bolt insertion hole 43X that penetrates the fixing portion 43 in the plate thickness direction (here, the front-rear direction X).
  • a metal collar 44 through which a fixing bolt (not shown) can be inserted is assembled in the bolt insertion hole 43X.
  • the connector housing 40 is fixed to the case 15 by screwing a fixing bolt (not shown) into the bolt insertion hole 43X of the fixing portion 43 and the bolt fixing hole 18X provided in the fixing portion 18 of the case 15. Therefore, the hood portion 41 including the fixing portion 43 is arranged on the outside of the case 15.
  • a storage groove 41X for accommodating the rubber ring 60 is formed on the outer peripheral surface of the hood portion 41 behind the fixing portion 43.
  • the accommodating groove 41X is formed, for example, over the entire circumference of the outer peripheral surface of the hood portion 41 in the circumferential direction.
  • a rubber ring 60 is fitted in the accommodating groove 41X.
  • the rubber ring 60 adheres to the inner peripheral surface of the metal shield shell of the electric wire side connector 22 over the entire circumference in the circumferential direction. Then, the outer peripheral surface of the hood portion 41 and the inner peripheral surface of the electric wire side connector 22 are waterproofed.
  • the insertion portion 42 is formed so as to project forward from the front end of the hood portion 41, for example.
  • the insertion portion 42 has a tubular portion 45 having a tubular shape, and a terminal holding portion 46 formed so as to project forward from the tubular portion 45.
  • the insertion portion 42 is inserted (fitted) into the mounting hole 17X of the case 15 along the insertion direction D1.
  • the insertion direction D1 of the present embodiment is a direction parallel to the front-rear direction X, and is a direction from the rear to the front of the front-rear direction X.
  • the tubular portion 45 is provided on the inner side (left side in the drawing) of the insertion portion 42 in the insertion direction D1.
  • the tubular portion 45 is formed in a tubular shape having, for example, an outer peripheral surface having a shape corresponding to the inner peripheral surface of the mounting hole 17X.
  • the tubular portion 45 has, for example, an oval shape on its outer circumference and a tubular shape extending in the front-rear direction.
  • the tubular portion 45 of the present embodiment is formed in a long cylindrical shape.
  • the terminal holding portion 46 is provided on the front side (right side in the drawing) of the insertion portion 42 in the insertion direction D1.
  • the terminal holding portion 46 is provided, for example, on the back wall of the tubular portion 45.
  • the terminal holding portion 46 is formed so as to project forward from the back wall of the tubular portion 45, for example.
  • a part or all of the terminal holding portion 46 protrudes forward from the mounting hole 17X and is provided so as to protrude into the internal space S1 of the case 15.
  • the terminal holding portion 46 has, for example, a plurality of (here, two) holding holes 47 arranged in the left-right direction Y.
  • Each holding hole 47 is formed so as to penetrate the terminal holding portion 46 in the front-rear direction X, for example.
  • each terminal fitting 50 is held in each holding hole 47.
  • the terminal fitting 50 is integrated with the terminal holding portion 46.
  • each terminal fitting 50 is integrally attached to the terminal holding portion 46 by insert molding or the like.
  • Each terminal fitting 50 has, for example, a terminal body 51 having a substantially conical shape, and a male terminal 52 extending from the terminal body 51 toward the opening of the hood 41.
  • Each terminal fitting 50 is, for example, a single component in which a terminal body 51 and a male terminal 52 are connected in the front-rear direction X and integrally formed.
  • a metal material such as copper, copper alloy, aluminum, aluminum alloy, or stainless steel can be used.
  • Each terminal fitting 50 may be subjected to surface treatment such as silver plating, tin plating, or aluminum plating, depending on the type of the constituent metal and the usage environment.
  • the male terminal portion 52 is formed in a columnar shape, for example.
  • the male terminal portion 52 is formed so as to project rearward from the back wall of the tubular portion 45 toward the hood portion 41.
  • Each male terminal portion 52 is formed so as to extend to the vicinity of the rear end of the tubular portion 45, for example.
  • the male terminal portion 52 is electrically connected to the electric wire 21 via, for example, a female terminal (not shown) provided on the electric wire side connector 22 shown in FIG.
  • a partition wall 48 is formed between the plurality of male terminal portions 52.
  • the partition wall 48 is provided between, for example, two male terminal portions 52 arranged in the left-right direction Y, and is formed so as to extend rearward from the back wall of the tubular portion 45 along the front-rear direction X.
  • the partition wall 48 is formed so as to extend to the internal space of the hood portion 41, for example.
  • a storage groove 42X in which the rubber ring 70 is housed is formed on the outer peripheral surface 42A of the insertion portion 42.
  • the outer peripheral surface 42A of the insertion portion 42 comes into contact with the inner peripheral surface of the mounting hole 17X, for example, when the insertion portion 42 is inserted into the mounting hole 17X.
  • the accommodating groove 42X is formed so as to be recessed inward in the radial direction of the insertion portion 42 from the outer peripheral surface 42A of the insertion portion 42.
  • the accommodating groove 42X is formed on, for example, the outer peripheral surface 42A of the tubular portion 45.
  • the accommodating groove 42X is formed, for example, over the entire circumference of the outer peripheral surface 42A of the tubular portion 45 in the circumferential direction.
  • a rubber ring 70 is fitted in the accommodating groove 42X.
  • the rubber ring 70 is in close contact with the inner peripheral surface of the mounting hole 17X over the entire circumference in the circumferential direction, and is in close contact with the outer peripheral surface 42A of the connector housing 40 and the inner peripheral surface of the case 15. Waterproof between. That is, the rubber ring 70 has a waterproof function of waterproofing between the outer peripheral surface 42A of the insertion portion 42 and the inner peripheral surface of the mounting hole 17X.
  • the rubber ring 70 is configured to be elastically deformable.
  • the rubber ring 70 is formed, for example, in a continuous closed ring over the entire circumference of the insertion portion 42 in the circumferential direction.
  • the rubber ring 70 is, for example, an O-ring.
  • the inner peripheral shape of the rubber ring 70 is formed, for example, along the outer peripheral surface 42A of the insertion portion 42.
  • the outer peripheral shape of the rubber ring 70 is formed, for example, along the inner peripheral surface of the mounting hole 17X.
  • the rubber ring 70 of the present embodiment is formed in an elliptical shape in which the inner peripheral shape and the outer peripheral shape thereof form an oval shape.
  • an inner peripheral lip portion 71 that is in close contact with the bottom surface of the accommodating groove 42X is formed.
  • a plurality of (three in the present embodiment) inner peripheral lip portions 71 are provided side by side along the insertion direction D1.
  • Each inner peripheral lip portion 71 is formed so as to protrude inward in the radial direction of the rubber ring 70 from the inner peripheral surface of the rubber ring 70, for example.
  • An outer peripheral lip portion 72 that is in close contact with the inner peripheral surface of the mounting hole 17X is formed on the outer peripheral surface of the rubber ring 70.
  • each outer peripheral lip portion 72 is formed so as to project from the outer peripheral surface of the rubber ring 70 toward the radial outer side of the rubber ring 70, for example.
  • the outer diameter of the rubber ring 70 is formed to be larger than the outer diameter of the insertion portion 42, and is formed to be larger than the inner diameter of the mounting hole 17X.
  • the outer peripheral surface of the rubber ring 70 is formed so as to project radially outward from the outer peripheral surface 42A of the insertion portion 42. That is, the tip end portion of the outer peripheral lip portion 72 is formed at a position protruding radially outward from the outer peripheral surface 42A of the insertion portion 42.
  • the material of the rubber ring 70 for example, nitrile rubber, silicone rubber, urethane rubber, acrylic rubber, butyl rubber, ethylene propylene rubber and the like can be used.
  • the material of the rubber ring 70 for example, oil-containing rubber containing oil can be used.
  • the rubber ring 70 of the present embodiment is made of oil-impregnated rubber.
  • a storage groove 42Y in which the rubber ring 80 is housed is formed on the outer peripheral surface 42A of the insertion portion 42.
  • the accommodating groove 42Y is provided on the front side in the insertion direction D1 with respect to the accommodating groove 42X.
  • the accommodating groove 42Y is provided, for example, at a position distant from the accommodating groove 42X in the insertion direction D1.
  • the accommodating groove 42Y is formed on, for example, the outer peripheral surface 42A of the terminal holding portion 46.
  • the accommodating groove 42Y is formed so as to be recessed inward in the radial direction of the insertion portion 42 from the outer peripheral surface 42A of the insertion portion 42.
  • the depth of the accommodating groove 42Y is set to, for example, the same depth as the depth of the accommodating groove 42X.
  • the accommodating groove 42Y is formed, for example, over the entire circumference of the outer peripheral surface 42A of the terminal holding portion 46 in the circumferential direction.
  • a rubber ring 80 is fitted in the accommodating groove 42Y. When the insertion portion 42 is inserted into the mounting hole 17X, the rubber ring 80 comes into contact with the inner peripheral surface of the mounting hole 17X over the entire circumference in the circumferential direction.
  • the rubber ring 80 may or may not have a waterproof function for waterproofing between the outer peripheral surface 42A of the insertion portion 42 and the inner peripheral surface of the mounting hole 17X.
  • the rubber ring 80 is configured to be elastically deformable.
  • the rubber ring 80 is formed, for example, in a continuous closed ring over the entire circumference of the insertion portion 42 in the circumferential direction.
  • the rubber ring 80 is, for example, an O-ring.
  • the inner peripheral shape of the rubber ring 80 is formed, for example, along the outer peripheral surface 42A of the insertion portion 42.
  • the outer peripheral shape of the rubber ring 80 is formed, for example, along the inner peripheral surface of the mounting hole 17X.
  • the rubber ring 80 of the present embodiment is formed in an elliptical shape in which the inner peripheral shape and the outer peripheral shape thereof form an oval shape.
  • the rubber ring 80 has, for example, a circular cross section.
  • the rubber ring 80 is an O-ring having a circular cross section.
  • the rubber ring 80 is formed to have a substantially perfect circular cross section, for example, in a natural state where no external force is applied.
  • the rubber ring 80 does not have a lip portion such as the inner peripheral lip portion 71 or the outer peripheral lip portion 72, for example.
  • the outer diameter of the rubber ring 80 is formed to be larger than the outer diameter of the insertion portion 42, and is formed to be larger than the inner diameter of the mounting hole 17X.
  • the outer peripheral surface of the rubber ring 80 is formed so as to project radially outward from the outer peripheral surface 42A of the insertion portion 42.
  • the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70.
  • the amount of protrusion of the rubber ring 80 from the outer peripheral surface 42A of the insertion portion 42 is set to be smaller than the amount of protrusion of the rubber ring 70 from the outer peripheral surface 42A of the insertion portion 42. That is, the tip of the outer peripheral lip portion 72 of the rubber ring 70 is formed so as to project radially outward from the outer peripheral surface of the rubber ring 80.
  • the rubber ring 80 is made of oil-containing rubber containing oil.
  • the rubber material for example, nitrile rubber, silicone rubber, urethane rubber, acrylic rubber, butyl rubber, ethylene propylene rubber and the like can be used.
  • the oil content of the rubber ring 80 is set to be higher than, for example, the oil content of the rubber ring 70.
  • the oil content of the rubber rings 70 and 80 in the present specification is the ratio of the oil contained in the unit volume of the rubber rings 70 and 80.
  • the unit of the oil content may be volume volume (v / v)% or mass volume (w / v)%.
  • the oil content of the rubber ring 80 is usually set to be 0.1% or more, preferably 1% or more, and more preferably 5% or more more than the oil content of the rubber ring 70.
  • the oil content of the rubber rings 70 and 80 is not limited, but can be set in the range of 10 to 50%. In one example, the oil content of the rubber ring 70 is, for example, 25%, and the oil content of the rubber ring 80 is, for example, 30%. In this example, the oil content of the rubber ring 80 is 5% higher than that of the rubber ring 70.
  • oil seeps out from the surfaces of the rubber rings 70 and 80, and an oil film (not shown) is formed on the surfaces of the rubber rings 70 and 80.
  • the durometer A hardness of the rubber ring 80 is set to be lower than, for example, the durometer A hardness of the rubber ring 70.
  • the durometer A hardness of the rubber ring 70 can be, for example, about 40 to 50.
  • the durometer A hardness of the rubber ring 80 can be, for example, about 10 to 20.
  • the durometer A hardness is the hardness measured by a type A durometer conforming to JIS K6253-3.
  • the insertion portion 42 of the connector 30 is inserted into the mounting hole 17X of the mounting portion 17 along the insertion direction D1.
  • the connector 30 is inserted into the mounting hole 17X of the mounting portion 17 from the front end portion of the insertion portion 42, that is, the end portion side on which the terminal fitting 50 and the terminal holding portion 46 are formed.
  • the insertion portion 42 enters the mounting hole 17X along the insertion direction D1 while the outer peripheral surface 42A of the terminal holding portion 46 slides on the inner peripheral surface of the mounting hole 17X.
  • the rubber ring 80 accommodated in the accommodating groove 42Y enters the mounting hole 17X.
  • the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70. Therefore, when the rubber ring 80 enters the mounting hole 17X, it is possible to suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X. Further, since an oil film is formed on the surface of the rubber ring 80 made of oil-impregnated rubber, when the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X come into contact with each other, the inner peripheral surface of the mounting hole 17X is formed.
  • Oil (lubricant) is applied. Then, the inner peripheral surface of the mounting hole 17X is in contact with the outer peripheral surface 42A of the insertion portion 42 and the outer peripheral surface of the rubber ring 70 located on the back side of the insertion direction D1 with respect to the rubber ring 80 while the oil is applied. become.
  • the oil applied to the inner peripheral surface of the mounting hole 17X reduces the coefficient of friction between the outer peripheral surface of the rubber ring 70 and the inner peripheral surface of the mounting hole 17X. Therefore, even if the friction coefficient is high due to the material of the case 15 or the surface condition of the inner peripheral surface of the mounting hole 17X, the friction coefficient is reduced by the oil applied to the inner peripheral surface of the mounting hole 17X. be able to. As a result, an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X can be suppressed, so that the insertion portion 42 can be suitably inserted into the mounting hole 17X.
  • the insertion portion 42 is inserted into the mounting hole 17X along the insertion direction D1 until the front surface of the fixing portion 43 of the connector 30 abuts on the fixing portion 18 of the case 15.
  • the fixing bolt (not shown) is screwed into the bolt insertion hole 43X of the fixing portion 43 and the bolt fixing hole 18X (see FIG. 2) of the fixing portion 18.
  • the connector 30 can be fixed to the case 15.
  • the connector 30 has an insertion portion 42 of the connector housing 40 that is inserted into the mounting hole 17X of the case 15 along the insertion direction D1.
  • the connector 30 is provided on the outer peripheral surface of the insertion portion 42, and has a rubber ring 70 for waterproofing between the outer peripheral surface 42A of the connector housing 40 and the inner peripheral surface of the mounting hole 17X, and a rubber ring 70 in front of the rubber ring 70 in the insertion direction D1. It has a rubber ring 80 provided on the side.
  • the rubber ring 80 is made of oil-containing rubber containing oil.
  • the rubber ring 80 is set to have a smaller crushing allowance than the rubber ring 70.
  • the rubber ring 80 is provided on the front side in the insertion direction D1 with respect to the rubber ring 70 having a waterproof function. Therefore, when the insertion portion 42 of the connector housing 40 is inserted into the mounting hole 17X of the case 15, the outer peripheral surface of the rubber ring 80 comes into contact with the inner peripheral surface of the mounting hole 17X before the rubber ring 70. At this time, since the rubber ring 80 is made of oil-containing rubber containing oil and the oil exudes from the surface of the rubber ring 80, the oil is applied to the inner peripheral surface of the mounting hole 17X.
  • the inner peripheral surface of the mounting hole 17X and the outer peripheral surface of the rubber ring 70 come into contact with each other in a state where the inner peripheral surface of the mounting hole 17X is coated with oil as a lubricant. Therefore, the friction coefficient between the inner peripheral surface of the mounting hole 17X and the outer peripheral surface of the rubber ring 70 can be reduced by the oil applied to the inner peripheral surface of the mounting hole 17X. Therefore, for example, even if the friction coefficient is high due to the material of the case 15 or the surface condition of the inner peripheral surface of the mounting hole 17X, the friction coefficient is reduced by the oil applied to the inner peripheral surface of the mounting hole 17X. be able to.
  • the rubber ring 80 when the rubber ring 80 enters the mounting hole 17X, friction occurs between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X. , The insertion resistance of the connector 30 with respect to the mounting hole 17X increases.
  • the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70. As a result, it is possible to prevent the friction coefficient between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X from becoming high. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X due to the provision of the rubber ring 80.
  • the oil content of the rubber ring 80 was set higher than the oil content of the rubber ring 70. According to this configuration, a larger amount of oil serving as a lubricant can be applied to the inner peripheral surface of the mounting hole 17X from the outer peripheral surface of the rubber ring 80. As a result, the friction coefficient between the inner peripheral surface of the mounting hole 17X and the outer peripheral surface of the rubber ring 70 can be further reduced, and an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X can be further suppressed.
  • the durometer A hardness of the rubber ring 80 is set lower than the durometer A hardness of the rubber ring 70. According to this configuration, since the durometer A hardness of the rubber ring 80 is low, it is possible to suppress an increase in the friction coefficient between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X due to the provision of the rubber ring 80.
  • the rubber ring 70 has an outer peripheral lip portion 72 formed so as to protrude outward in the radial direction of the rubber ring 70 from the outer peripheral surface of the rubber ring 70.
  • the rubber ring 80 is an O-ring having a circular cross section without a lip portion.
  • the coefficient of friction between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X can be reduced as compared with the case where the rubber ring 80 has a lip portion. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X due to the provision of the rubber ring 80.
  • the number of rubber rings 80 is set to 1, but the number of rubber rings 80 is not particularly limited.
  • a plurality of rubber rings 80 may be attached to the connector housing 40.
  • the rubber ring 80 of the above embodiment may be provided with an outer peripheral lip portion or an inner peripheral lip portion. Even in this case, the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70.
  • the durometer A hardness of the rubber ring 80 in the above embodiment may be set to be the same as the durometer A hardness of the rubber ring 70 or higher than the durometer A hardness of the rubber ring 70.
  • the oil content of the rubber ring 80 in the above embodiment may be set to be the same as the oil content of the rubber ring 70 or lower than the oil content of the rubber ring.
  • the accommodating groove 42Y of the above embodiment may be formed on the outer peripheral surface 42A of the tubular portion 45.
  • the rubber ring 70 and the rubber ring 80 in the above embodiment may be collectively accommodated in one accommodating groove. Even in this case, the rubber ring 80 of the rubber rings 70 and 80 is provided on the front side in the insertion direction D1.
  • a ring member made of an elastic body other than rubber may be adopted. Even in this case, it is preferable that a film made of a lubricant such as oil is formed on the surface of the ring member.
  • the connector 30 is embodied as a connector on the device side, but the present invention is not limited to this.
  • the connector may be embodied in the electric wire side connector 22.
  • the rubber ring 80 is provided on the electric wire side connector 22.
  • the other case is embodied in the case 15 of an electric device such as an inverter 11 or a high-voltage battery 12, but the present invention is not limited to this.
  • it may be embodied in a shield shell included in the electric wire side connector 22.
  • the rubber ring 80 is provided on the hood portion 41.
  • the terminal fitting 50 has a male terminal portion 52, but the present invention is not limited to this.
  • the terminal fitting 50 may have a female terminal portion.
  • the electric wire side connector 22 has a male terminal portion.
  • the number of terminal fittings 50 mounted on the connector housing 40 of the above embodiment is not particularly limited.
  • the number of terminal fittings 50 may be one or three or more.
  • the arrangement relationship between the inverter 11 and the high-voltage battery 12 in the vehicle is not limited to the above embodiment, and may be appropriately changed according to the vehicle configuration.
  • the inverter 11 and the high-voltage battery 12 are adopted as the electric devices connected by the conductive path 10, but the present invention is not limited to this.
  • it may be used for an electric wire connecting the inverter 11 and the motor for driving the wheels. That is, it is applicable as long as it electrically connects the electric devices mounted on the vehicle.
  • One or more mounting examples of the present disclosure are directed from the outside of an electrical device (15) to a connector (30) configured to be retrofitted to a through hole (17X) of the electrical device (15).
  • the connector (30) is With multiple metal terminals (50),
  • An insulating connector housing (40) including a terminal holding portion (46) that fixedly supports the plurality of metal terminals (50) can be provided.
  • the connector housing (40) is With the connector (30) fully attached to the through hole (17X) (FIG. 7), the hood (41) protruding outward from the electrical device (15), and With the connector (30) fully attached to the through hole (17X) (FIG. 7), a cylinder (45) surrounded by the through hole (17X).
  • Lip seal ring (70) configured in To reduce the frictional resistance between the connector (30) and the through hole (17X) by being sandwiched between the inner peripheral surface of the through hole (17X) and the outer peripheral surface of the cylinder (45) in a compressed state.
  • a lubrication ring (80) configured so that the lubricating component exudes from it can be provided.
  • the lubricating ring (80) may be an oily ring configured so that lubricating oil exudes from the ring (80).
  • the lip seal ring (70) is said.
  • the connector (30) is configured such that the lubricating ring (80) contacts the inner peripheral surface of the through hole (17X) prior to contacting the inner peripheral surface of the through hole (17X). Can be done (Fig. 4).

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present disclosure provides a connector enabling reduced resistance during insertion into a mounting hole. The connector 30 has: a connector housing 40 to be inserted into a mounting hole 17X of a case 15 along an insertion direction D1; a rubber ring 70 disposed on the outer peripheral surface of the connector housing 40 and for waterproofing the area between the outer peripheral surface 42A of the connector housing 40 and the inner peripheral surface of the mounting hole 17X; and a rubber ring 80 disposed on the outer peripheral surface of the connector housing 40. The rubber ring 70 is made of oil-containing rubber which contains oil. The rubber ring 80 is disposed further to the front side in the insertion direction D1 in comparison to the rubber ring 70. The squeeze margin set for the rubber ring 80 is smaller than that for the rubber ring 70.

Description

コネクタconnector
　本開示は、コネクタに関するものである。 This disclosure relates to connectors.
　従来、車両に搭載される電気機器のケースに装着されるコネクタが知られている（例えば、特許文献１参照）。この種のコネクタとしては、ケースに設けられた装着孔に挿入可能な挿入部を有している。挿入部の外周面には、装着孔の内周面と挿入部の外周面とに密着することで、装着孔の内周面と挿入部との間を防水（シール）するゴムリングが装着されている。 Conventionally, a connector attached to a case of an electric device mounted on a vehicle is known (see, for example, Patent Document 1). This type of connector has an insertion portion that can be inserted into a mounting hole provided in the case. A rubber ring is attached to the outer peripheral surface of the insertion portion to waterproof (seal) the space between the inner peripheral surface of the mounting hole and the insertion portion by adhering to the inner peripheral surface of the mounting hole and the outer peripheral surface of the insertion portion. ing.
特開２０１４－８６１５０号公報Japanese Unexamined Patent Publication No. 2014-86150
　ところで、上記コネクタでは、装着孔に対して挿入部が挿入する過程において、挿入部の外周面に装着されたゴムリングが装着孔に進入することで、ゴムリングと装着孔の内周面との間に摩擦が生じ、装着孔に対するコネクタの挿入抵抗が増加する。このとき、例えばケースの材質や装着孔の表面状態等によって摩擦係数が変動する。この摩擦係数が高くなると、ケースに対してコネクタを取り付けることができなくなるおそれがある。 By the way, in the above connector, in the process of inserting the insertion portion into the mounting hole, the rubber ring mounted on the outer peripheral surface of the insertion portion enters the mounting hole, so that the rubber ring and the inner peripheral surface of the mounting hole are connected. Friction occurs between them, increasing the insertion resistance of the connector to the mounting holes. At this time, for example, the friction coefficient varies depending on the material of the case, the surface condition of the mounting hole, and the like. If this friction coefficient becomes high, it may not be possible to attach the connector to the case.
　本開示の目的は、装着孔に対する挿入抵抗を低減できるコネクタを提供することにある。 An object of the present disclosure is to provide a connector capable of reducing insertion resistance to a mounting hole.
　本開示のコネクタは、相手ケースの装着孔に対して挿入方向に沿って挿入されるコネクタハウジングと、前記コネクタハウジングの外周面に設けられ、前記コネクタハウジングの外周面と前記装着孔の内周面との間を防水する第１ゴムリングと、前記コネクタハウジングの外周面に設けられた第２ゴムリングと、を有し、前記第２ゴムリングは、油を含有した含油ゴムからなり、前記第２ゴムリングは、前記第１ゴムリングよりも前記挿入方向の手前側に設けられており、前記第２ゴムリングは、前記第１ゴムリングよりも潰し代が小さく設定されている。 The connectors of the present disclosure are provided on a connector housing that is inserted into a mounting hole of a mating case along an insertion direction and an outer peripheral surface of the connector housing, and the outer peripheral surface of the connector housing and the inner peripheral surface of the mounting hole. It has a first rubber ring for waterproofing between the two, and a second rubber ring provided on the outer peripheral surface of the connector housing. The second rubber ring is made of oil-containing rubber containing oil and is composed of the first rubber. The 2 rubber rings are provided on the front side of the first rubber ring in the insertion direction, and the second rubber ring is set to have a smaller crushing allowance than the first rubber ring.
　本開示のコネクタによれば、装着孔に対する挿入抵抗を低減できるという効果を奏する。 According to the connector of the present disclosure, there is an effect that the insertion resistance to the mounting hole can be reduced.
図１は、一実施形態の導電路を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing a conductive path of one embodiment. 図２は、一実施形態のコネクタを示す概略斜視図である。FIG. 2 is a schematic perspective view showing a connector of one embodiment. 図３（ａ）は、一実施形態のコネクタを示す概略断面図であり、図３（ｂ）は図３（ａ）の部分拡大図である。FIG. 3A is a schematic cross-sectional view showing a connector of one embodiment, and FIG. 3B is a partially enlarged view of FIG. 3A. 図４は、一実施形態のコネクタの挿入動作を示す概略断面図である。FIG. 4 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment. 図５は、一実施形態のコネクタの挿入動作を示す概略断面図である。FIG. 5 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment. 図６は、一実施形態のコネクタの挿入動作を示す概略断面図である。FIG. 6 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment. 図７は、一実施形態のコネクタの挿入動作を示す概略断面図である。FIG. 7 is a schematic cross-sectional view showing the insertion operation of the connector of one embodiment.
　［本開示の実施形態の説明］
　最初に本開示の実施形態を列挙して説明する。 [Explanation of Embodiments of the present disclosure]
First, the embodiments of the present disclosure will be listed and described.
　［１］本開示のコネクタは、相手ケースの装着孔に対して挿入方向に沿って挿入されるコネクタハウジングと、前記コネクタハウジングの外周面に設けられ、前記コネクタハウジングの外周面と前記装着孔の内周面との間を防水する第１ゴムリングと、前記コネクタハウジングの外周面に設けられた第２ゴムリングと、を有し、前記第２ゴムリングは、油を含有した含油ゴムからなり、前記第２ゴムリングは、前記第１ゴムリングよりも前記挿入方向の手前側に設けられており、前記第２ゴムリングは、前記第１ゴムリングよりも潰し代が小さく設定されている。 [1] The connector of the present disclosure is provided on a connector housing that is inserted into a mounting hole of a mating case along an insertion direction and an outer peripheral surface of the connector housing, and is provided on the outer peripheral surface of the connector housing and the mounting hole. It has a first rubber ring for waterproofing between the inner peripheral surface and a second rubber ring provided on the outer peripheral surface of the connector housing, and the second rubber ring is made of oil-containing rubber containing oil. The second rubber ring is provided on the front side in the insertion direction of the first rubber ring, and the second rubber ring is set to have a smaller crushing allowance than the first rubber ring.
　この構成によれば、第１ゴムリングよりも挿入方向の手前側に第２ゴムリングが設けられるため、相手ケースの装着孔にコネクタのコネクタハウジングを挿入する際に、装着孔の内周面に第１ゴムリングよりも先に第２ゴムリングの外周面が接触する。このとき、第２ゴムリングが油を含有した含油ゴムからなり、第２ゴムリングの表面には油が染み出ているため、その油が装着孔の内周面に塗布される。これにより、装着孔の内周面に潤滑剤となる油が塗布された状態で、装着孔の内周面と第１ゴムリングの外周面とが接触されることになる。このため、装着孔の内周面に塗布された油によって、装着孔の内周面と第１ゴムリングの外周面との間の摩擦係数を低減することができる。したがって、例えば相手ケースの材質や装着孔の内周面の表面状態等によって摩擦係数が高くなる場合であっても、装着孔の内周面に塗布された油によってその摩擦係数を低減することができる。この結果、装着孔に対するコネクタの挿入抵抗の増加を抑制できるため、装着孔に対してコネクタを好適に挿入することができる。ひいては、相手ケースに対してコネクタを好適に取り付けることができる。 According to this configuration, since the second rubber ring is provided on the front side in the insertion direction with respect to the first rubber ring, when the connector housing of the connector is inserted into the mounting hole of the mating case, it is formed on the inner peripheral surface of the mounting hole. The outer peripheral surface of the second rubber ring comes into contact with the first rubber ring before the first rubber ring. At this time, since the second rubber ring is made of oil-containing rubber containing oil and the oil exudes from the surface of the second rubber ring, the oil is applied to the inner peripheral surface of the mounting hole. As a result, the inner peripheral surface of the mounting hole and the outer peripheral surface of the first rubber ring come into contact with each other with the oil acting as a lubricant applied to the inner peripheral surface of the mounting hole. Therefore, the friction coefficient between the inner peripheral surface of the mounting hole and the outer peripheral surface of the first rubber ring can be reduced by the oil applied to the inner peripheral surface of the mounting hole. Therefore, for example, even if the friction coefficient increases due to the material of the mating case or the surface condition of the inner peripheral surface of the mounting hole, the friction coefficient can be reduced by the oil applied to the inner peripheral surface of the mounting hole. it can. As a result, it is possible to suppress an increase in the insertion resistance of the connector into the mounting hole, so that the connector can be suitably inserted into the mounting hole. As a result, the connector can be suitably attached to the mating case.
　ここで、第２ゴムリングを設けたことにより、第２ゴムリングが装着孔内に進入する際に、第２ゴムリングの外周面と装着孔の内周面との間に摩擦が生じ、装着孔に対するコネクタの挿入抵抗が増加する。但し、上記構成では、第２ゴムリングの潰し代を、第１ゴムリングの潰し代よりも小さく設定している。これにより、第２ゴムリングの外周面と装着孔の内周面との間の摩擦係数が高くなることを抑制できる。このため、第２ゴムリングを設けたことに起因して、装着孔に対するコネクタの挿入抵抗が増加することを好適に抑制できる。 Here, by providing the second rubber ring, when the second rubber ring enters the mounting hole, friction is generated between the outer peripheral surface of the second rubber ring and the inner peripheral surface of the mounting hole, and the mounting is performed. Increases the insertion resistance of the connector to the hole. However, in the above configuration, the crushing allowance of the second rubber ring is set to be smaller than the crushing allowance of the first rubber ring. As a result, it is possible to prevent the friction coefficient between the outer peripheral surface of the second rubber ring and the inner peripheral surface of the mounting hole from becoming high. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector with respect to the mounting hole due to the provision of the second rubber ring.
　［２］前記第１ゴムリングは、油を含有した含油ゴムからなり、前記第２ゴムリングの含油率は、前記第１ゴムリングの含油率よりも高く設定されていることが好ましい。 [2] The first rubber ring is made of oil-containing rubber containing oil, and it is preferable that the oil content of the second rubber ring is set higher than the oil content of the first rubber ring.
　この構成によれば、装着孔の内周面に対して、第２ゴムリングの外周面から潤滑剤となる油をより多く塗布させることができる。これにより、装着孔の内周面と第１ゴムリングの外周面との摩擦係数をより低減することができ、装着孔に対するコネクタの挿入抵抗の増加をより抑制できる。 According to this configuration, more oil as a lubricant can be applied to the inner peripheral surface of the mounting hole from the outer peripheral surface of the second rubber ring. As a result, the friction coefficient between the inner peripheral surface of the mounting hole and the outer peripheral surface of the first rubber ring can be further reduced, and an increase in the insertion resistance of the connector with respect to the mounting hole can be further suppressed.
　ここで、本明細書におけるゴムリングの含油率は、ゴムリングの単位体積当たりに含まれる油の割合のことである。 Here, the oil content of the rubber ring in the present specification is the ratio of the oil contained in the unit volume of the rubber ring.
　［３］前記第２ゴムリングのデュロメータＡ硬度は、前記第１ゴムリングのデュロメータＡ硬度よりも低く設定されていることが好ましい。 [3] It is preferable that the durometer A hardness of the second rubber ring is set lower than the durometer A hardness of the first rubber ring.
　この構成によれば、第２ゴムリングのデュロメータＡ硬度が低くなるため、第２ゴムリングの外周面と装着孔の内周面との摩擦係数が高くなることを抑制できる。このため、第２ゴムリングを設けたことに起因して、装着孔に対するコネクタの挿入抵抗が増加することを好適に抑制できる。 According to this configuration, since the durometer A hardness of the second rubber ring is lowered, it is possible to suppress an increase in the coefficient of friction between the outer peripheral surface of the second rubber ring and the inner peripheral surface of the mounting hole. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector with respect to the mounting hole due to the provision of the second rubber ring.
　［４］前記第１ゴムリングは、前記第１ゴムリングの外周面から前記第１ゴムリングの径方向外側に突出して形成された外周リップ部を有し、前記第２ゴムリングは、リップ部を有さない断面円形のＯリングであることが好ましい。 [4] The first rubber ring has an outer peripheral lip portion formed so as to protrude outward in the radial direction of the first rubber ring from the outer peripheral surface of the first rubber ring, and the second rubber ring has a lip portion. It is preferable that the O-ring has a circular cross section.
　この構成によれば、第２ゴムリングがリップ部を有する場合に比べて、第２ゴムリングの外周面と装着孔の内周面との摩擦係数を低減できる。このため、第２ゴムリングを設けたことに起因して、装着孔に対するコネクタの挿入抵抗が増加することを好適に抑制できる。 According to this configuration, the coefficient of friction between the outer peripheral surface of the second rubber ring and the inner peripheral surface of the mounting hole can be reduced as compared with the case where the second rubber ring has a lip portion. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector with respect to the mounting hole due to the provision of the second rubber ring.
　［５］前記コネクタハウジングは、前記コネクタハウジングの外周面から前記コネクタハウジングの径方向内側に凹むように形成された第１収容溝と、前記コネクタハウジングの外周面から前記コネクタハウジングの径方向内側に凹むように形成された第２収容溝と、を有し、前記第１収容溝と前記第２収容溝とは前記挿入方向において互いに離れて設けられており、前記第２収容溝は、前記第１収容溝よりも前記挿入方向の手前側に設けられており、前記第１ゴムリングは、前記第１収容溝に収容されており、前記第２ゴムリングは、前記第２収容溝に収容されている。 [5] The connector housing has a first accommodating groove formed so as to be recessed inward in the radial direction from the outer peripheral surface of the connector housing, and radially inward from the outer peripheral surface of the connector housing. It has a second accommodating groove formed so as to be recessed, and the first accommodating groove and the second accommodating groove are provided apart from each other in the insertion direction, and the second accommodating groove is the second accommodating groove. It is provided on the front side in the insertion direction with respect to the first housing groove, the first rubber ring is housed in the first housing groove, and the second rubber ring is housed in the second housing groove. ing.
　この構成によれば、第１収容溝に第１ゴムリングが収容され、第２収容溝に第２ゴムリングが収容される。これにより、例えば第１ゴムリング及び第２ゴムリングの挿入方向への位置ずれを抑制することができる。 According to this configuration, the first rubber ring is accommodated in the first accommodating groove, and the second rubber ring is accommodated in the second accommodating groove. Thereby, for example, the displacement of the first rubber ring and the second rubber ring in the insertion direction can be suppressed.
　［本開示の実施形態の詳細］
　本開示のコネクタの具体例を、以下に図面を参照しつつ説明する。各図面では、説明の便宜上、構成の一部を誇張又は簡略化して示す場合がある。また、各部分の寸法比率については各図面で異なる場合がある。本明細書における「平行」や「直交」は、厳密に平行や直交の場合のみでなく、本実施形態における作用効果を奏する範囲内で概ね平行や直交の場合も含まれる。なお、本発明はこれらの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。 [Details of Embodiments of the present disclosure]
Specific examples of the connectors of the present disclosure will be described below with reference to the drawings. In each drawing, a part of the structure may be exaggerated or simplified for convenience of explanation. In addition, the dimensional ratio of each part may differ in each drawing. The term "parallel" or "orthogonal" in the present specification includes not only the case of strictly parallel or orthogonal, but also the case of substantially parallel or orthogonal within the range in which the action and effect in the present embodiment are exhibited. It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
　（導電路１０の全体構成）
　図１に示す導電路１０は、２個又は３個以上の電気機器（機器）を電気的に接続する。導電路１０は、ワイヤハーネス２０と、ワイヤハーネス２０の両端部と接続される一対の機器側のコネクタ３０とを有している。導電路１０は、例えば、ハイブリッド車や電気自動車等の車両の前部に設置されたインバータ１１と、インバータ１１よりも車両の後方に設置された高圧バッテリ１２とを電気的に接続する。導電路１０は、例えば、車両の床下を通るように配索されている。インバータ１１は、車両走行の動力源となる車輪駆動用のモータ（図示略）と接続される。インバータ１１は、高圧バッテリ１２の直流電力から交流電力を生成し、その交流電力をモータに供給する。高圧バッテリ１２は、例えば、数百ボルトの電圧を供給可能なバッテリである。 (Overall configuration of conductive path 10)
The conductive path 10 shown in FIG. 1 electrically connects two or three or more electric devices (equipment). The conductive path 10 has a wire harness 20 and a pair of device-side connectors 30 connected to both ends of the wire harness 20. The conductive path 10 electrically connects an inverter 11 installed at the front of a vehicle such as a hybrid vehicle or an electric vehicle with a high-pressure battery 12 installed at the rear of the vehicle with respect to the inverter 11. The conductive path 10 is arranged so as to pass under the floor of the vehicle, for example. The inverter 11 is connected to a wheel drive motor (not shown) that is a power source for traveling the vehicle. The inverter 11 generates AC power from the DC power of the high-pressure battery 12 and supplies the AC power to the motor. The high voltage battery 12 is, for example, a battery capable of supplying a voltage of several hundred volts.
　（ワイヤハーネス２０の構成）
　ワイヤハーネス２０は、複数（本実施形態では２本）の電線２１と、電線２１の両端部に取り付けられた一対の電線側コネクタ２２と、複数の電線２１を一括して包囲する保護管２３とを有している。一方の電線側コネクタ２２はインバータ１１に取り付けられた機器側のコネクタ３０に接続され、他方の電線側コネクタ２２は高圧バッテリ１２に取り付けられた機器側のコネクタ３０に接続されている。保護管２３としては、例えば、金属製や樹脂製のパイプ、樹脂等からなり可撓性を有するコルゲートチューブやゴム製の防水カバー又はこれらを組み合わせて用いることができる。保護管２３は、例えば、内部に収容する電線２１を飛翔物や液体から保護する。 (Structure of wire harness 20)
The wire harness 20 includes a plurality of (two in this embodiment) electric wires 21, a pair of electric wire side connectors 22 attached to both ends of the electric wires 21, and a protective tube 23 that collectively surrounds the plurality of electric wires 21. have. One wire-side connector 22 is connected to the device-side connector 30 attached to the inverter 11, and the other wire-side connector 22 is connected to the device-side connector 30 attached to the high-voltage battery 12. As the protective tube 23, for example, a corrugated tube made of metal or resin, a resin or the like, a flexible corrugated tube, a rubber waterproof cover, or a combination thereof can be used. The protective tube 23 protects, for example, the electric wire 21 housed therein from flying objects and liquids.
　各コネクタ３０は、インバータ１１及び高圧バッテリ１２等の電気機器が有する導電性のケース１５に固定される。各コネクタ３０には、各電線側コネクタ２２が嵌合され、各電線側コネクタ２２が電気的に接続される。ケース１５の材料としては、例えば、鉄系やアルミニウム系などの金属材料を用いることができる。 Each connector 30 is fixed to a conductive case 15 of an electric device such as an inverter 11 and a high-voltage battery 12. Each electric wire side connector 22 is fitted to each connector 30, and each electric wire side connector 22 is electrically connected. As the material of the case 15, for example, a metal material such as iron-based or aluminum-based can be used.
　（ケース１５の構成）
　図２に示すように、ケース１５は、箱状をなすケース本体１６と、ケース本体１６に一体に設けられ、ケース本体１６の外部に突出した筒状をなす装着部１７とを有している。装着部１７は、装着部１７を貫通する装着孔１７Ｘを有することにより筒状に形成されている。装着孔１７Ｘは、ケース本体１６の内部空間Ｓ１とケース本体１６の外部空間とを連通するように形成されている。装着孔１７Ｘは、例えば、貫通方向から見た形状が長手方向と短手方向とを有する扁平形状に形成されている。本明細書において、「扁平形状」には、例えば、長方形、長円形や楕円形などが含まれる。なお、本明細書における「長方形」は、長辺と短辺を有するものであり、正方形を除いたものである。また、本明細書における「長方形」には、稜部を面取りした形状や、稜部を丸めた形状も含まれる。本明細書における「長円形」は、２つの略等しい長さの平行線と２つの半円形からなる形状である。本実施形態の装着孔１７Ｘは、貫通方向から見た形状が長円形状に形成されている。また、本実施形態の装着部１７は、略長円筒状に形成されている。 (Structure of case 15)
As shown in FIG. 2, the case 15 has a box-shaped case body 16 and a tubular mounting portion 17 that is integrally provided with the case body 16 and protrudes to the outside of the case body 16. .. The mounting portion 17 is formed in a tubular shape by having a mounting hole 17X penetrating the mounting portion 17. The mounting hole 17X is formed so as to communicate the internal space S1 of the case body 16 and the external space of the case body 16. The mounting hole 17X is formed, for example, into a flat shape having a longitudinal direction and a lateral direction when viewed from the penetrating direction. In the present specification, the "flat shape" includes, for example, a rectangle, an oval shape, an ellipse shape, and the like. The "rectangle" in the present specification has a long side and a short side, excluding a square. Further, the "rectangle" in the present specification includes a shape in which the ridge portion is chamfered and a shape in which the ridge portion is rounded. The "oval" in the present specification is a shape consisting of two parallel lines of substantially equal length and two semicircles. The mounting hole 17X of the present embodiment is formed in an oval shape when viewed from the penetrating direction. Further, the mounting portion 17 of the present embodiment is formed in a substantially long cylindrical shape.
　コネクタ３０は、装着部１７の姿勢に応じて任意の向きでケース１５に対して装着可能であるが、本実施形態では、装着孔１７Ｘの貫通方向を前後方向としてコネクタ３０の構造について説明する。なお、各図面中のＸＹＺ軸におけるＸ軸はコネクタ３０の前後方向を表し、Ｙ軸はＸ軸と直交するコネクタ３０の左右方向（幅方向）を表し、Ｚ軸はＸＹ平面に対して直交するコネクタ３０の上下方向（高さ方向）を表している。以下の説明では、便宜上、Ｘ軸に沿って延びる方向を前後方向Ｘと称し、Ｙ軸に沿って延びる方向を左右方向Ｙと称し、Ｚ軸に沿って延びる方向を上下方向Ｚと称する。また、以下の説明では、図２におけるＸ矢印方向を前方、Ｙ矢印方向を左方、Ｚ矢印方向を上方とする。 The connector 30 can be mounted on the case 15 in any direction according to the posture of the mounting portion 17, but in the present embodiment, the structure of the connector 30 will be described with the through direction of the mounting hole 17X as the front-rear direction. In each drawing, the X-axis in the XYZ axes represents the front-back direction of the connector 30, the Y-axis represents the left-right direction (width direction) of the connector 30 orthogonal to the X-axis, and the Z-axis is orthogonal to the XY plane. It represents the vertical direction (height direction) of the connector 30. In the following description, for convenience, the direction extending along the X axis is referred to as the front-back direction X, the direction extending along the Y axis is referred to as the left-right direction Y, and the direction extending along the Z axis is referred to as the vertical direction Z. Further, in the following description, the X arrow direction in FIG. 2 is forward, the Y arrow direction is left, and the Z arrow direction is upward.
　ケース１５は、コネクタ３０をケース１５に固定するための固定部１８を有している。固定部１８は、例えば、ケース本体１６の外部に突出するように形成されている。固定部１８は、例えば、装着部１７と一体に形成されている。固定部１８は、例えば、装着部１７と左右方向Ｙに並んで設けられている。本実施形態の固定部１８は、装着部１７の左方に設けられている。固定部１８には、ボルト固定孔１８Ｘが形成されている。ボルト固定孔１８Ｘは、例えば、前後方向Ｘに延びるように形成されている。 The case 15 has a fixing portion 18 for fixing the connector 30 to the case 15. The fixing portion 18 is formed so as to project to the outside of the case body 16, for example. The fixing portion 18 is formed integrally with the mounting portion 17, for example. The fixing portion 18 is provided, for example, side by side with the mounting portion 17 in the left-right direction Y. The fixing portion 18 of the present embodiment is provided on the left side of the mounting portion 17. A bolt fixing hole 18X is formed in the fixing portion 18. The bolt fixing hole 18X is formed so as to extend in the front-rear direction X, for example.
　（コネクタ３０の構成）
　図２及び図３（ａ）（ｂ）に示すように、コネクタ３０は、例えば、コネクタハウジング４０と、コネクタハウジング４０に装着された複数（本実施形態では、２個）の端子金具５０とを有している。コネクタ３０は、例えば、コネクタハウジング４０の外周面に装着されたゴムリング６０と、コネクタハウジング４０の外周面に装着されたゴムリング７０と、コネクタハウジング４０の外周面に装着されたゴムリング８０とを有している。 (Configuration of connector 30)
As shown in FIGS. 2 and 3A and 3B, the connector 30 includes, for example, a connector housing 40 and a plurality of (two in this embodiment) terminal fittings 50 mounted on the connector housing 40. Have. The connector 30 includes, for example, a rubber ring 60 mounted on the outer peripheral surface of the connector housing 40, a rubber ring 70 mounted on the outer peripheral surface of the connector housing 40, and a rubber ring 80 mounted on the outer peripheral surface of the connector housing 40. have.
　（コネクタハウジング４０の構成）
　図２に示すように、コネクタハウジング４０は、例えば、前後方向Ｘに延びる略筒状をなしている。コネクタハウジング４０は、例えば、上下方向Ｚよりも左右方向Ｙに長い扁平形状に形成されている。コネクタハウジング４０は、ケース１５の外側に配置されるフード部４１と、ケース１５の装着孔１７Ｘに挿入される挿入部４２とを有している。コネクタハウジング４０は、例えば、フード部４１と挿入部４２とが前後方向Ｘに連なって一体に形成された単一部品である。コネクタハウジング４０の材料としては、例えば、合成樹脂などの絶縁材料を用いることができる。 (Structure of connector housing 40)
As shown in FIG. 2, the connector housing 40 has, for example, a substantially tubular shape extending in the front-rear direction X. The connector housing 40 is formed in a flat shape that is longer in the left-right direction Y than in the up-down direction Z, for example. The connector housing 40 has a hood portion 41 arranged on the outside of the case 15 and an insertion portion 42 inserted into the mounting hole 17X of the case 15. The connector housing 40 is, for example, a single component in which the hood portion 41 and the insertion portion 42 are connected in the front-rear direction X and integrally formed. As the material of the connector housing 40, for example, an insulating material such as a synthetic resin can be used.
　（フード部４１の構成）
　フード部４１は、例えば、上下方向Ｚよりも左右方向Ｙに長い扁平形状に形成されている。フード部４１は、例えば、その外周形状が長円形状をなし、前後方向に延びた筒状をなしている。本実施形態のフード部４１は、長円筒状に形成されている。フード部４１の前端の外周面には、フード部４１の径方向外側に張り出した固定部４３が形成されている。固定部４３は、例えば、概略板状に形成されている。固定部４３には、固定部４３の板厚方向（ここでは、前後方向Ｘ）に貫通するボルト挿通孔４３Ｘが形成されている。 (Structure of hood section 41)
The hood portion 41 is formed in a flat shape that is longer in the left-right direction Y than in the up-down direction Z, for example. The outer peripheral shape of the hood portion 41 is, for example, an oval shape and a tubular shape extending in the front-rear direction. The hood portion 41 of the present embodiment is formed in a long cylindrical shape. A fixing portion 43 protruding outward in the radial direction of the hood portion 41 is formed on the outer peripheral surface of the front end of the hood portion 41. The fixing portion 43 is formed in a substantially plate shape, for example. The fixing portion 43 is formed with a bolt insertion hole 43X that penetrates the fixing portion 43 in the plate thickness direction (here, the front-rear direction X).
　ボルト挿通孔４３Ｘ内には、図示しない固定ボルトが挿通可能な金属製のカラー４４が組み付けられている。コネクタハウジング４０は、固定部４３のボルト挿通孔４３Ｘとケース１５の固定部１８に設けられたボルト固定孔１８Ｘとに固定ボルト（図示略）をねじ込むことにより、ケース１５に固定される。このため、固定部４３を含むフード部４１は、ケース１５の外側に配置される。 A metal collar 44 through which a fixing bolt (not shown) can be inserted is assembled in the bolt insertion hole 43X. The connector housing 40 is fixed to the case 15 by screwing a fixing bolt (not shown) into the bolt insertion hole 43X of the fixing portion 43 and the bolt fixing hole 18X provided in the fixing portion 18 of the case 15. Therefore, the hood portion 41 including the fixing portion 43 is arranged on the outside of the case 15.
　図３（ａ）に示すように、フード部４１の固定部４３よりも後方の外周面には、例えば、ゴムリング６０が収容される収容溝４１Ｘが形成されている。収容溝４１Ｘは、例えば、フード部４１の外周面の周方向全周にわたって形成されている。収容溝４１Ｘには、ゴムリング６０が嵌合されている。ゴムリング６０は、例えば、コネクタ３０と電線側コネクタ２２（図１参照）とを嵌合させた際に、電線側コネクタ２２の有する金属製のシールドシェルの内周面に周方向全周にわたって密着し、フード部４１の外周面と電線側コネクタ２２の内周面との間を防水する。 As shown in FIG. 3A, for example, a storage groove 41X for accommodating the rubber ring 60 is formed on the outer peripheral surface of the hood portion 41 behind the fixing portion 43. The accommodating groove 41X is formed, for example, over the entire circumference of the outer peripheral surface of the hood portion 41 in the circumferential direction. A rubber ring 60 is fitted in the accommodating groove 41X. For example, when the connector 30 and the electric wire side connector 22 (see FIG. 1) are fitted, the rubber ring 60 adheres to the inner peripheral surface of the metal shield shell of the electric wire side connector 22 over the entire circumference in the circumferential direction. Then, the outer peripheral surface of the hood portion 41 and the inner peripheral surface of the electric wire side connector 22 are waterproofed.
　（挿入部４２の構成）
　図２に示すように、挿入部４２は、例えば、フード部４１の前端から前方に突出して形成されている。挿入部４２は、筒状をなす筒部４５と、筒部４５よりも前方に突出して形成された端子保持部４６とを有している。挿入部４２は、ケース１５の装着孔１７Ｘに対して、挿入方向Ｄ１に沿って挿入（嵌合）される。本実施形態の挿入方向Ｄ１は、前後方向Ｘと平行をなす方向であって、前後方向Ｘの後方から前方に向かう方向である。 (Structure of Insertion 42)
As shown in FIG. 2, the insertion portion 42 is formed so as to project forward from the front end of the hood portion 41, for example. The insertion portion 42 has a tubular portion 45 having a tubular shape, and a terminal holding portion 46 formed so as to project forward from the tubular portion 45. The insertion portion 42 is inserted (fitted) into the mounting hole 17X of the case 15 along the insertion direction D1. The insertion direction D1 of the present embodiment is a direction parallel to the front-rear direction X, and is a direction from the rear to the front of the front-rear direction X.
　（筒部４５の構成）
　筒部４５は、挿入部４２のうち挿入方向Ｄ１の奥側（図中左側）に設けられている。筒部４５は、例えば、装着孔１７Ｘの内周面に対応した形状の外周面を有する筒状に形成されている。筒部４５は、例えば、その外周形状が長円形状をなし、前後方向に延びた筒状をなしている。本実施形態の筒部４５は、長円筒状に形成されている。 (Structure of cylinder 45)
The tubular portion 45 is provided on the inner side (left side in the drawing) of the insertion portion 42 in the insertion direction D1. The tubular portion 45 is formed in a tubular shape having, for example, an outer peripheral surface having a shape corresponding to the inner peripheral surface of the mounting hole 17X. The tubular portion 45 has, for example, an oval shape on its outer circumference and a tubular shape extending in the front-rear direction. The tubular portion 45 of the present embodiment is formed in a long cylindrical shape.
　（端子保持部４６の構成）
　端子保持部４６は、挿入部４２のうち挿入方向Ｄ１の手前側（図中右側）に設けられている。端子保持部４６は、例えば、筒部４５の奥壁に設けられている。端子保持部４６は、例えば、筒部４５の奥壁から前方に突出するように形成されている。端子保持部４６は、その一部又は全部が装着孔１７Ｘよりも前方に突出してケース１５の内部空間Ｓ１内に突出して設けられている。 (Structure of terminal holding portion 46)
The terminal holding portion 46 is provided on the front side (right side in the drawing) of the insertion portion 42 in the insertion direction D1. The terminal holding portion 46 is provided, for example, on the back wall of the tubular portion 45. The terminal holding portion 46 is formed so as to project forward from the back wall of the tubular portion 45, for example. A part or all of the terminal holding portion 46 protrudes forward from the mounting hole 17X and is provided so as to protrude into the internal space S1 of the case 15.
　図３に示すように、端子保持部４６は、例えば、左右方向Ｙに並ぶ複数（ここでは、２個）の保持孔４７を有している。各保持孔４７は、例えば、端子保持部４６を前後方向Ｘに貫通するように形成されている。各保持孔４７には、例えば、各端子金具５０が保持されている。コネクタ３０では、例えば、端子金具５０が端子保持部４６に一体化されている。例えば、各端子金具５０は、インサート成形などにより、端子保持部４６に対して一体的に装着されている。 As shown in FIG. 3, the terminal holding portion 46 has, for example, a plurality of (here, two) holding holes 47 arranged in the left-right direction Y. Each holding hole 47 is formed so as to penetrate the terminal holding portion 46 in the front-rear direction X, for example. For example, each terminal fitting 50 is held in each holding hole 47. In the connector 30, for example, the terminal fitting 50 is integrated with the terminal holding portion 46. For example, each terminal fitting 50 is integrally attached to the terminal holding portion 46 by insert molding or the like.
　（端子金具５０の構成）
　各端子金具５０は、例えば、略円錐状をなす端子本体部５１と、端子本体部５１からフード部４１の開口部に向かって延びる雄型端子部５２とを有している。各端子金具５０は、例えば、端子本体部５１と雄型端子部５２とが前後方向Ｘに連なって一体に形成された単一部品である。各端子金具５０の材料としては、例えば、銅、銅合金、アルミニウム、アルミニウム合金、ステンレス鋼などの金属材料を用いることができる。各端子金具５０は、その構成金属の種類や使用環境に応じて、銀メッキ、錫メッキやアルミニウムメッキ等の表面処理を施してもよい。 (Structure of terminal fitting 50)
Each terminal fitting 50 has, for example, a terminal body 51 having a substantially conical shape, and a male terminal 52 extending from the terminal body 51 toward the opening of the hood 41. Each terminal fitting 50 is, for example, a single component in which a terminal body 51 and a male terminal 52 are connected in the front-rear direction X and integrally formed. As the material of each terminal fitting 50, for example, a metal material such as copper, copper alloy, aluminum, aluminum alloy, or stainless steel can be used. Each terminal fitting 50 may be subjected to surface treatment such as silver plating, tin plating, or aluminum plating, depending on the type of the constituent metal and the usage environment.
　雄型端子部５２は、例えば、円柱状に形成されている。雄型端子部５２は、筒部４５の奥壁からフード部４１に向かって後方に突出して形成されている。各雄型端子部５２は、例えば、筒部４５の後端付近まで延びるように形成されている。雄型端子部５２は、例えば、図１に示した電線側コネクタ２２に設けられる雌型端子（図示略）を介して電線２１と電気的に接続される。 The male terminal portion 52 is formed in a columnar shape, for example. The male terminal portion 52 is formed so as to project rearward from the back wall of the tubular portion 45 toward the hood portion 41. Each male terminal portion 52 is formed so as to extend to the vicinity of the rear end of the tubular portion 45, for example. The male terminal portion 52 is electrically connected to the electric wire 21 via, for example, a female terminal (not shown) provided on the electric wire side connector 22 shown in FIG.
　複数の雄型端子部５２の間には、例えば、仕切壁４８が形成されている。仕切壁４８は、例えば、左右方向Ｙに並ぶ２個の雄型端子部５２の間に設けられ、筒部４５の奥壁から前後方向Ｘに沿って後方に延びるように形成されている。仕切壁４８は、例えば、フード部４１の内部空間まで延びるように形成されている。 For example, a partition wall 48 is formed between the plurality of male terminal portions 52. The partition wall 48 is provided between, for example, two male terminal portions 52 arranged in the left-right direction Y, and is formed so as to extend rearward from the back wall of the tubular portion 45 along the front-rear direction X. The partition wall 48 is formed so as to extend to the internal space of the hood portion 41, for example.
　（収容溝４２Ｘの構成）
　挿入部４２の外周面４２Ａには、例えば、ゴムリング７０が収容される収容溝４２Ｘが形成されている。ここで、挿入部４２の外周面４２Ａは、例えば、挿入部４２が装着孔１７Ｘに挿入された場合に、装着孔１７Ｘの内周面と接触する。収容溝４２Ｘは、挿入部４２の外周面４２Ａから挿入部４２の径方向内側に凹むように形成されている。収容溝４２Ｘは、例えば、筒部４５の外周面４２Ａに形成されている。収容溝４２Ｘは、例えば、筒部４５の外周面４２Ａの周方向全周にわたって形成されている。収容溝４２Ｘには、ゴムリング７０が嵌合されている。ゴムリング７０は、挿入部４２を装着孔１７Ｘに挿入させた際に、装着孔１７Ｘの内周面に周方向全周にわたって密着し、コネクタハウジング４０の外周面４２Ａとケース１５の内周面との間を防水する。すなわち、ゴムリング７０は、挿入部４２の外周面４２Ａと装着孔１７Ｘの内周面との間を防水する防水機能を有している。 (Structure of accommodation groove 42X)
For example, a storage groove 42X in which the rubber ring 70 is housed is formed on the outer peripheral surface 42A of the insertion portion 42. Here, the outer peripheral surface 42A of the insertion portion 42 comes into contact with the inner peripheral surface of the mounting hole 17X, for example, when the insertion portion 42 is inserted into the mounting hole 17X. The accommodating groove 42X is formed so as to be recessed inward in the radial direction of the insertion portion 42 from the outer peripheral surface 42A of the insertion portion 42. The accommodating groove 42X is formed on, for example, the outer peripheral surface 42A of the tubular portion 45. The accommodating groove 42X is formed, for example, over the entire circumference of the outer peripheral surface 42A of the tubular portion 45 in the circumferential direction. A rubber ring 70 is fitted in the accommodating groove 42X. When the insertion portion 42 is inserted into the mounting hole 17X, the rubber ring 70 is in close contact with the inner peripheral surface of the mounting hole 17X over the entire circumference in the circumferential direction, and is in close contact with the outer peripheral surface 42A of the connector housing 40 and the inner peripheral surface of the case 15. Waterproof between. That is, the rubber ring 70 has a waterproof function of waterproofing between the outer peripheral surface 42A of the insertion portion 42 and the inner peripheral surface of the mounting hole 17X.
　（ゴムリング７０の構成）
　ゴムリング７０は、弾性変形可能に構成されている。ゴムリング７０は、例えば、挿入部４２の周方向全周にわたって連続した閉環状に形成されている。ゴムリング７０は、例えば、Ｏリングである。ゴムリング７０の内周形状は、例えば、挿入部４２の外周面４２Ａに沿った形状に形成される。ゴムリング７０の外周形状は、例えば、装着孔１７Ｘの内周面に沿った形状に形成される。本実施形態のゴムリング７０は、その内周形状及び外周形状が長円形状をなす長円筒状に形成されている。 (Structure of rubber ring 70)
The rubber ring 70 is configured to be elastically deformable. The rubber ring 70 is formed, for example, in a continuous closed ring over the entire circumference of the insertion portion 42 in the circumferential direction. The rubber ring 70 is, for example, an O-ring. The inner peripheral shape of the rubber ring 70 is formed, for example, along the outer peripheral surface 42A of the insertion portion 42. The outer peripheral shape of the rubber ring 70 is formed, for example, along the inner peripheral surface of the mounting hole 17X. The rubber ring 70 of the present embodiment is formed in an elliptical shape in which the inner peripheral shape and the outer peripheral shape thereof form an oval shape.
　ゴムリング７０の内周面には、例えば、収容溝４２Ｘの底面に密着する内周リップ部７１が形成されている。ゴムリング７０の内周面には、複数（本実施形態では、３つ）の内周リップ部７１が挿入方向Ｄ１に沿って並んで設けられている。各内周リップ部７１は、例えば、ゴムリング７０の内周面からゴムリング７０の径方向内側に向かって突出するように形成されている。ゴムリング７０の外周面には、装着孔１７Ｘの内周面に密着する外周リップ部７２が形成されている。ゴムリング７０の外周面には、複数（本実施形態では、２つ）の外周リップ部７２が挿入方向Ｄ１に沿って並んで設けられている。各外周リップ部７２は、例えば、ゴムリング７０の外周面からゴムリング７０の径方向外側に向かって突出するように形成されている。 On the inner peripheral surface of the rubber ring 70, for example, an inner peripheral lip portion 71 that is in close contact with the bottom surface of the accommodating groove 42X is formed. On the inner peripheral surface of the rubber ring 70, a plurality of (three in the present embodiment) inner peripheral lip portions 71 are provided side by side along the insertion direction D1. Each inner peripheral lip portion 71 is formed so as to protrude inward in the radial direction of the rubber ring 70 from the inner peripheral surface of the rubber ring 70, for example. An outer peripheral lip portion 72 that is in close contact with the inner peripheral surface of the mounting hole 17X is formed on the outer peripheral surface of the rubber ring 70. On the outer peripheral surface of the rubber ring 70, a plurality of (two in the present embodiment) outer peripheral lip portions 72 are provided side by side along the insertion direction D1. Each outer peripheral lip portion 72 is formed so as to project from the outer peripheral surface of the rubber ring 70 toward the radial outer side of the rubber ring 70, for example.
　ゴムリング７０の外径は、挿入部４２の外径よりも大径に形成されており、装着孔１７Ｘの内径よりも大径に形成されている。例えば、ゴムリング７０の外周面は、挿入部４２の外周面４２Ａよりも径方向外側に突出して形成されている。すなわち、外周リップ部７２の先端部は、挿入部４２の外周面４２Ａよりも径方向外側に突出した位置に形成されている。 The outer diameter of the rubber ring 70 is formed to be larger than the outer diameter of the insertion portion 42, and is formed to be larger than the inner diameter of the mounting hole 17X. For example, the outer peripheral surface of the rubber ring 70 is formed so as to project radially outward from the outer peripheral surface 42A of the insertion portion 42. That is, the tip end portion of the outer peripheral lip portion 72 is formed at a position protruding radially outward from the outer peripheral surface 42A of the insertion portion 42.
　ゴムリング７０の材料としては、例えば、ニトリルゴム、シリコーンゴム、ウレタンゴム、アクリルゴム、ブチルゴム、エチレンプロピレンゴムなどを用いることができる。ゴムリング７０の材料としては、例えば、油を含有した含油ゴムを用いることができる。本実施形態のゴムリング７０は、含油ゴムによって構成されている。 As the material of the rubber ring 70, for example, nitrile rubber, silicone rubber, urethane rubber, acrylic rubber, butyl rubber, ethylene propylene rubber and the like can be used. As the material of the rubber ring 70, for example, oil-containing rubber containing oil can be used. The rubber ring 70 of the present embodiment is made of oil-impregnated rubber.
　（収容溝４２Ｙの構成）
　挿入部４２の外周面４２Ａには、ゴムリング８０が収容される収容溝４２Ｙが形成されている。収容溝４２Ｙは、収容溝４２Ｘよりも挿入方向Ｄ１の手前側に設けられている。収容溝４２Ｙは、例えば、挿入方向Ｄ１において収容溝４２Ｘと離れた位置に設けられている。収容溝４２Ｙは、例えば、端子保持部４６の外周面４２Ａに形成されている。収容溝４２Ｙは、挿入部４２の外周面４２Ａから挿入部４２の径方向内側に凹むように形成されている。収容溝４２Ｙの深さは、例えば、収容溝４２Ｘの深さと同じ深さに設定されている。収容溝４２Ｙは、例えば、端子保持部４６の外周面４２Ａの周方向全周にわたって形成されている。収容溝４２Ｙには、ゴムリング８０が嵌合されている。ゴムリング８０は、挿入部４２を装着孔１７Ｘに挿入させた際に、装着孔１７Ｘの内周面に周方向全周にわたって接触する。ゴムリング８０は、挿入部４２の外周面４２Ａと装着孔１７Ｘの内周面との間を防水する防水機能を有していてもよいし、防水機能を有していなくてもよい。 (Structure of accommodation groove 42Y)
A storage groove 42Y in which the rubber ring 80 is housed is formed on the outer peripheral surface 42A of the insertion portion 42. The accommodating groove 42Y is provided on the front side in the insertion direction D1 with respect to the accommodating groove 42X. The accommodating groove 42Y is provided, for example, at a position distant from the accommodating groove 42X in the insertion direction D1. The accommodating groove 42Y is formed on, for example, the outer peripheral surface 42A of the terminal holding portion 46. The accommodating groove 42Y is formed so as to be recessed inward in the radial direction of the insertion portion 42 from the outer peripheral surface 42A of the insertion portion 42. The depth of the accommodating groove 42Y is set to, for example, the same depth as the depth of the accommodating groove 42X. The accommodating groove 42Y is formed, for example, over the entire circumference of the outer peripheral surface 42A of the terminal holding portion 46 in the circumferential direction. A rubber ring 80 is fitted in the accommodating groove 42Y. When the insertion portion 42 is inserted into the mounting hole 17X, the rubber ring 80 comes into contact with the inner peripheral surface of the mounting hole 17X over the entire circumference in the circumferential direction. The rubber ring 80 may or may not have a waterproof function for waterproofing between the outer peripheral surface 42A of the insertion portion 42 and the inner peripheral surface of the mounting hole 17X.
　（ゴムリング８０の構成）
　ゴムリング８０は、弾性変形可能に構成されている。ゴムリング８０は、例えば、挿入部４２の周方向全周にわたって連続した閉環状に形成されている。ゴムリング８０は、例えば、Ｏリングである。ゴムリング８０の内周形状は、例えば、挿入部４２の外周面４２Ａに沿った形状に形成される。ゴムリング８０の外周形状は、例えば、装着孔１７Ｘの内周面に沿った形状に形成される。本実施形態のゴムリング８０は、その内周形状及び外周形状が長円形状をなす長円筒状に形成されている。ゴムリング８０は、例えば、円形の断面を有している。例えば、ゴムリング８０は、断面円形のＯリングである。ゴムリング８０は、例えば、外力が加えられていない自然状態において、断面略真円形に形成されている。ゴムリング８０は、例えば、内周リップ部７１や外周リップ部７２のようなリップ部を有していない。 (Structure of rubber ring 80)
The rubber ring 80 is configured to be elastically deformable. The rubber ring 80 is formed, for example, in a continuous closed ring over the entire circumference of the insertion portion 42 in the circumferential direction. The rubber ring 80 is, for example, an O-ring. The inner peripheral shape of the rubber ring 80 is formed, for example, along the outer peripheral surface 42A of the insertion portion 42. The outer peripheral shape of the rubber ring 80 is formed, for example, along the inner peripheral surface of the mounting hole 17X. The rubber ring 80 of the present embodiment is formed in an elliptical shape in which the inner peripheral shape and the outer peripheral shape thereof form an oval shape. The rubber ring 80 has, for example, a circular cross section. For example, the rubber ring 80 is an O-ring having a circular cross section. The rubber ring 80 is formed to have a substantially perfect circular cross section, for example, in a natural state where no external force is applied. The rubber ring 80 does not have a lip portion such as the inner peripheral lip portion 71 or the outer peripheral lip portion 72, for example.
　ゴムリング８０の外径は、挿入部４２の外径よりも大径に形成されており、装着孔１７Ｘの内径よりも大径に形成されている。例えば、ゴムリング８０の外周面は、挿入部４２の外周面４２Ａよりも径方向外側に突出して形成されている。 The outer diameter of the rubber ring 80 is formed to be larger than the outer diameter of the insertion portion 42, and is formed to be larger than the inner diameter of the mounting hole 17X. For example, the outer peripheral surface of the rubber ring 80 is formed so as to project radially outward from the outer peripheral surface 42A of the insertion portion 42.
　ここで、ゴムリング８０の潰し代は、ゴムリング７０の潰し代よりも小さくなるように設定されている。例えば、挿入部４２の外周面４２Ａからのゴムリング８０の突出量は、挿入部４２の外周面４２Ａからのゴムリング７０の突出量よりも小さく設定されている。すなわち、ゴムリング７０の外周リップ部７２の先端部は、ゴムリング８０の外周面よりも径方向外側に突出して形成されている。 Here, the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70. For example, the amount of protrusion of the rubber ring 80 from the outer peripheral surface 42A of the insertion portion 42 is set to be smaller than the amount of protrusion of the rubber ring 70 from the outer peripheral surface 42A of the insertion portion 42. That is, the tip of the outer peripheral lip portion 72 of the rubber ring 70 is formed so as to project radially outward from the outer peripheral surface of the rubber ring 80.
　ゴムリング８０は、油を含有した含油ゴムによって構成されている。ゴム材料としては、例えば、ニトリルゴム、シリコーンゴム、ウレタンゴム、アクリルゴム、ブチルゴム、エチレンプロピレンゴムなどを用いることができる。ゴムリング８０の含油率は、例えば、ゴムリング７０の含油率よりも多くなるように設定されている。ここで、本明細書におけるゴムリング７０，８０の含油率は、ゴムリング７０，８０の単位体積当たりに含まれる油の割合のことである。含油率の単位は、体積体積（v/v）％であってよく、質量体積（w/v）％であってもよい。例えば、ゴムリング８０の含油率はゴムリング７０の含油率よりも、通常０．１％以上多く、好ましくは１％以上多く、より好ましくは５％以上多く設定される。ゴムリング７０、８０の含油率は、限定ではないが、１０～５０％の範囲に設定することができる。一例では、ゴムリング７０の含油率は例えば２５％であり、ゴムリング８０の含油率は例えば３０％であり、この例では、ゴムリング８０の含油率はゴムリング７０よりも５％多い。なお、含油ゴムによって構成されるゴムリング７０，８０では、それらゴムリング７０，８０の表面に油が染み出してゴムリング７０，８０の表面に油膜（図示略）が形成されている。 The rubber ring 80 is made of oil-containing rubber containing oil. As the rubber material, for example, nitrile rubber, silicone rubber, urethane rubber, acrylic rubber, butyl rubber, ethylene propylene rubber and the like can be used. The oil content of the rubber ring 80 is set to be higher than, for example, the oil content of the rubber ring 70. Here, the oil content of the rubber rings 70 and 80 in the present specification is the ratio of the oil contained in the unit volume of the rubber rings 70 and 80. The unit of the oil content may be volume volume (v / v)% or mass volume (w / v)%. For example, the oil content of the rubber ring 80 is usually set to be 0.1% or more, preferably 1% or more, and more preferably 5% or more more than the oil content of the rubber ring 70. The oil content of the rubber rings 70 and 80 is not limited, but can be set in the range of 10 to 50%. In one example, the oil content of the rubber ring 70 is, for example, 25%, and the oil content of the rubber ring 80 is, for example, 30%. In this example, the oil content of the rubber ring 80 is 5% higher than that of the rubber ring 70. In the rubber rings 70 and 80 made of oil-impregnated rubber, oil seeps out from the surfaces of the rubber rings 70 and 80, and an oil film (not shown) is formed on the surfaces of the rubber rings 70 and 80.
　ゴムリング８０のデュロメータＡ硬度は、例えば、ゴムリング７０のデュロメータＡ硬度よりも低くなるように設定されている。ゴムリング７０のデュロメータＡ硬度は、例えば、４０～５０程度とすることができる。ゴムリング８０のデュロメータＡ硬度は、例えば、１０～２０程度とすることができる。ここで、デュロメータＡ硬度は、ＪＩＳ　Ｋ６２５３－３に準拠したタイプＡデュロメータで測定される硬さのことである。 The durometer A hardness of the rubber ring 80 is set to be lower than, for example, the durometer A hardness of the rubber ring 70. The durometer A hardness of the rubber ring 70 can be, for example, about 40 to 50. The durometer A hardness of the rubber ring 80 can be, for example, about 10 to 20. Here, the durometer A hardness is the hardness measured by a type A durometer conforming to JIS K6253-3.
　（コネクタ３０の挿入動作）
　次に、コネクタ３０の挿入部４２をケース１５の装着部１７の装着孔１７Ｘに挿入（嵌合）する際の動作について説明する。 (Insert operation of connector 30)
Next, the operation when the insertion portion 42 of the connector 30 is inserted (fitted) into the mounting hole 17X of the mounting portion 17 of the case 15 will be described.
　まず、図４に示す工程では、コネクタ３０の挿入部４２が、挿入方向Ｄ１に沿って装着部１７の装着孔１７Ｘに挿入される。このとき、コネクタ３０の挿入部４２の前端部、つまり端子金具５０及び端子保持部４６の形成された端部側から、装着部１７の装着孔１７Ｘ内に挿入される。その後、端子保持部４６の外周面４２Ａが装着孔１７Ｘの内周面に摺動しながら、挿入部４２が挿入方向Ｄ１に沿って装着孔１７Ｘ内に進入する。続いて、図４に示すように、収容溝４２Ｙに収容されたゴムリング８０が装着孔１７Ｘ内に進入する。すると、ゴムリング８０の外周面と装着孔１７Ｘの内周面との間に摩擦が生じ、装着孔１７Ｘに対するコネクタ３０の挿入抵抗が増加する。但し、ゴムリング８０の潰し代がゴムリング７０の潰し代よりも小さく設定されている。このため、ゴムリング８０が装着孔１７Ｘ内に進入したときに、装着孔１７Ｘに対するコネクタ３０の挿入抵抗が増加することを抑制できる。また、含油ゴムからなるゴムリング８０の表面には油膜が形成されているため、ゴムリング８０の外周面と装着孔１７Ｘの内周面とが接触したときに、装着孔１７Ｘの内周面に油（潤滑剤）が塗布される。そして、装着孔１７Ｘの内周面は油が塗布された状態のまま、ゴムリング８０よりも挿入方向Ｄ１奥側に位置する挿入部４２の外周面４２Ａ及びゴムリング７０の外周面と接触することになる。 First, in the process shown in FIG. 4, the insertion portion 42 of the connector 30 is inserted into the mounting hole 17X of the mounting portion 17 along the insertion direction D1. At this time, the connector 30 is inserted into the mounting hole 17X of the mounting portion 17 from the front end portion of the insertion portion 42, that is, the end portion side on which the terminal fitting 50 and the terminal holding portion 46 are formed. After that, the insertion portion 42 enters the mounting hole 17X along the insertion direction D1 while the outer peripheral surface 42A of the terminal holding portion 46 slides on the inner peripheral surface of the mounting hole 17X. Subsequently, as shown in FIG. 4, the rubber ring 80 accommodated in the accommodating groove 42Y enters the mounting hole 17X. Then, friction occurs between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X, and the insertion resistance of the connector 30 with respect to the mounting hole 17X increases. However, the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70. Therefore, when the rubber ring 80 enters the mounting hole 17X, it is possible to suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X. Further, since an oil film is formed on the surface of the rubber ring 80 made of oil-impregnated rubber, when the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X come into contact with each other, the inner peripheral surface of the mounting hole 17X is formed. Oil (lubricant) is applied. Then, the inner peripheral surface of the mounting hole 17X is in contact with the outer peripheral surface 42A of the insertion portion 42 and the outer peripheral surface of the rubber ring 70 located on the back side of the insertion direction D1 with respect to the rubber ring 80 while the oil is applied. become.
　次いで、図５及び図６に示す工程では、挿入部４２が挿入方向Ｄ１に沿って更に装着孔１７Ｘ内に挿入されると、収容溝４２Ｘに収容されたゴムリング７０が装着孔１７Ｘ内に進入する。すると、ゴムリング７０の外周面と装着孔１７Ｘの内周面との間に摩擦が生じ、装着孔１７Ｘに対するコネクタ３０の挿入抵抗が増加する。但し、装着孔１７Ｘの内周面には、ゴムリング７０よりも挿入方向Ｄ１手前側に設けられたゴムリング８０によって油（潤滑剤）が塗布されている。この装着孔１７Ｘの内周面に塗布された油によって、ゴムリング７０の外周面と装着孔１７Ｘの内周面との間の摩擦係数が低減される。このため、ケース１５の材質や装着孔１７Ｘの内周面の表面状態等によって摩擦係数が高くなる場合であっても、装着孔１７Ｘの内周面に塗布された油によってその摩擦係数を低減することができる。これにより、装着孔１７Ｘに対するコネクタ３０の挿入抵抗の増加を抑制できるため、装着孔１７Ｘに対して挿入部４２を好適に挿入することができる。 Next, in the steps shown in FIGS. 5 and 6, when the insertion portion 42 is further inserted into the mounting hole 17X along the insertion direction D1, the rubber ring 70 housed in the housing groove 42X enters the mounting hole 17X. To do. Then, friction occurs between the outer peripheral surface of the rubber ring 70 and the inner peripheral surface of the mounting hole 17X, and the insertion resistance of the connector 30 with respect to the mounting hole 17X increases. However, oil (lubricant) is applied to the inner peripheral surface of the mounting hole 17X by a rubber ring 80 provided on the front side of the insertion direction D1 with respect to the rubber ring 70. The oil applied to the inner peripheral surface of the mounting hole 17X reduces the coefficient of friction between the outer peripheral surface of the rubber ring 70 and the inner peripheral surface of the mounting hole 17X. Therefore, even if the friction coefficient is high due to the material of the case 15 or the surface condition of the inner peripheral surface of the mounting hole 17X, the friction coefficient is reduced by the oil applied to the inner peripheral surface of the mounting hole 17X. be able to. As a result, an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X can be suppressed, so that the insertion portion 42 can be suitably inserted into the mounting hole 17X.
　その後、図７に示すように、コネクタ３０の固定部４３の前面がケース１５の固定部１８に当接するまで、挿入部４２が挿入方向Ｄ１に沿って装着孔１７Ｘ内に挿入される。固定部４３の前面が固定部１８に当接した後に、固定部４３のボルト挿通孔４３Ｘと固定部１８のボルト固定孔１８Ｘ（図２参照）とに固定ボルト（図示略）をねじ込むことにより、コネクタ３０をケース１５に固定することができる。 After that, as shown in FIG. 7, the insertion portion 42 is inserted into the mounting hole 17X along the insertion direction D1 until the front surface of the fixing portion 43 of the connector 30 abuts on the fixing portion 18 of the case 15. After the front surface of the fixing portion 43 comes into contact with the fixing portion 18, the fixing bolt (not shown) is screwed into the bolt insertion hole 43X of the fixing portion 43 and the bolt fixing hole 18X (see FIG. 2) of the fixing portion 18. The connector 30 can be fixed to the case 15.
　次に、本実施形態の作用効果を説明する。 Next, the action and effect of this embodiment will be described.
　（１）コネクタ３０は、ケース１５の装着孔１７Ｘに対して挿入方向Ｄ１に沿って挿入されるコネクタハウジング４０の挿入部４２を有する。コネクタ３０は、挿入部４２の外周面に設けられ、コネクタハウジング４０の外周面４２Ａと装着孔１７Ｘの内周面との間を防水するゴムリング７０と、ゴムリング７０よりも挿入方向Ｄ１の手前側に設けられたゴムリング８０とを有する。ゴムリング８０は、油を含有した含油ゴムからなる。ゴムリング８０は、ゴムリング７０よりも潰し代が小さく設定されている。 (1) The connector 30 has an insertion portion 42 of the connector housing 40 that is inserted into the mounting hole 17X of the case 15 along the insertion direction D1. The connector 30 is provided on the outer peripheral surface of the insertion portion 42, and has a rubber ring 70 for waterproofing between the outer peripheral surface 42A of the connector housing 40 and the inner peripheral surface of the mounting hole 17X, and a rubber ring 70 in front of the rubber ring 70 in the insertion direction D1. It has a rubber ring 80 provided on the side. The rubber ring 80 is made of oil-containing rubber containing oil. The rubber ring 80 is set to have a smaller crushing allowance than the rubber ring 70.
　この構成によれば、防水機能を有するゴムリング７０よりも挿入方向Ｄ１の手前側にゴムリング８０が設けられる。このため、ケース１５の装着孔１７Ｘにコネクタハウジング４０の挿入部４２を挿入する際に、装着孔１７Ｘの内周面にゴムリング７０よりも先にゴムリング８０の外周面が接触する。このとき、ゴムリング８０が油を含有した含油ゴムからなり、ゴムリング８０の表面には油が染み出ているため、その油が装着孔１７Ｘの内周面に塗布される。これにより、装着孔１７Ｘの内周面に潤滑剤となる油が塗布された状態で、装着孔１７Ｘの内周面とゴムリング７０の外周面とが接触されることになる。このため、装着孔１７Ｘの内周面に塗布された油によって、装着孔１７Ｘの内周面とゴムリング７０の外周面との間の摩擦係数を低減することができる。したがって、例えばケース１５の材質や装着孔１７Ｘの内周面の表面状態等によって摩擦係数が高くなる場合であっても、装着孔１７Ｘの内周面に塗布された油によってその摩擦係数を低減することができる。この結果、装着孔１７Ｘに対するコネクタ３０の挿入抵抗の増加を抑制できるため、装着孔１７Ｘに対してコネクタ３０を好適に挿入することができる。ひいては、ケース１５に対してコネクタ３０を好適に取り付けることができる。 According to this configuration, the rubber ring 80 is provided on the front side in the insertion direction D1 with respect to the rubber ring 70 having a waterproof function. Therefore, when the insertion portion 42 of the connector housing 40 is inserted into the mounting hole 17X of the case 15, the outer peripheral surface of the rubber ring 80 comes into contact with the inner peripheral surface of the mounting hole 17X before the rubber ring 70. At this time, since the rubber ring 80 is made of oil-containing rubber containing oil and the oil exudes from the surface of the rubber ring 80, the oil is applied to the inner peripheral surface of the mounting hole 17X. As a result, the inner peripheral surface of the mounting hole 17X and the outer peripheral surface of the rubber ring 70 come into contact with each other in a state where the inner peripheral surface of the mounting hole 17X is coated with oil as a lubricant. Therefore, the friction coefficient between the inner peripheral surface of the mounting hole 17X and the outer peripheral surface of the rubber ring 70 can be reduced by the oil applied to the inner peripheral surface of the mounting hole 17X. Therefore, for example, even if the friction coefficient is high due to the material of the case 15 or the surface condition of the inner peripheral surface of the mounting hole 17X, the friction coefficient is reduced by the oil applied to the inner peripheral surface of the mounting hole 17X. be able to. As a result, an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X can be suppressed, so that the connector 30 can be suitably inserted into the mounting hole 17X. As a result, the connector 30 can be suitably attached to the case 15.
　（２）ここで、ゴムリング８０を設けたことにより、ゴムリング８０が装着孔１７Ｘ内に進入する際に、ゴムリング８０の外周面と装着孔１７Ｘの内周面との間に摩擦が生じ、装着孔１７Ｘに対するコネクタ３０の挿入抵抗が増加する。但し、本実施形態のコネクタ３０では、ゴムリング８０の潰し代を、ゴムリング７０の潰し代よりも小さく設定している。これにより、ゴムリング８０の外周面と装着孔１７Ｘの内周面との間の摩擦係数が高くなることを抑制できる。このため、ゴムリング８０を設けたことに起因して、装着孔１７Ｘに対するコネクタ３０の挿入抵抗が増加することを好適に抑制できる。 (2) Here, by providing the rubber ring 80, when the rubber ring 80 enters the mounting hole 17X, friction occurs between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X. , The insertion resistance of the connector 30 with respect to the mounting hole 17X increases. However, in the connector 30 of the present embodiment, the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70. As a result, it is possible to prevent the friction coefficient between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X from becoming high. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X due to the provision of the rubber ring 80.
　（３）ゴムリング８０の含油率を、ゴムリング７０の含油率よりも高く設定した。この構成によれば、装着孔１７Ｘの内周面に対して、ゴムリング８０の外周面から潤滑剤となる油をより多く塗布させることができる。これにより、装着孔１７Ｘの内周面とゴムリング７０の外周面との摩擦係数をより低減することができ、装着孔１７Ｘに対するコネクタ３０の挿入抵抗の増加をより抑制できる。 (3) The oil content of the rubber ring 80 was set higher than the oil content of the rubber ring 70. According to this configuration, a larger amount of oil serving as a lubricant can be applied to the inner peripheral surface of the mounting hole 17X from the outer peripheral surface of the rubber ring 80. As a result, the friction coefficient between the inner peripheral surface of the mounting hole 17X and the outer peripheral surface of the rubber ring 70 can be further reduced, and an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X can be further suppressed.
　（４）ゴムリング８０のデュロメータＡ硬度は、ゴムリング７０のデュロメータＡ硬度よりも低く設定されている。この構成によれば、ゴムリング８０のデュロメータＡ硬度が低くなるため、ゴムリング８０の外周面と装着孔１７Ｘの内周面との摩擦係数が高くなることを抑制できる。このため、ゴムリング８０を設けたことに起因して、装着孔１７Ｘに対するコネクタ３０の挿入抵抗が増加することを好適に抑制できる。 (4) The durometer A hardness of the rubber ring 80 is set lower than the durometer A hardness of the rubber ring 70. According to this configuration, since the durometer A hardness of the rubber ring 80 is low, it is possible to suppress an increase in the friction coefficient between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X due to the provision of the rubber ring 80.
　（５）ゴムリング７０は、ゴムリング７０の外周面からゴムリング７０の径方向外側に突出して形成された外周リップ部７２を有する。ゴムリング８０は、リップ部を有さない断面円形のＯリングである。 (5) The rubber ring 70 has an outer peripheral lip portion 72 formed so as to protrude outward in the radial direction of the rubber ring 70 from the outer peripheral surface of the rubber ring 70. The rubber ring 80 is an O-ring having a circular cross section without a lip portion.
　この構成によれば、ゴムリング８０がリップ部を有する場合に比べて、ゴムリング８０の外周面と装着孔１７Ｘの内周面との摩擦係数を低減できる。このため、ゴムリング８０を設けたことに起因して、装着孔１７Ｘに対するコネクタ３０の挿入抵抗が増加することを好適に抑制できる。 According to this configuration, the coefficient of friction between the outer peripheral surface of the rubber ring 80 and the inner peripheral surface of the mounting hole 17X can be reduced as compared with the case where the rubber ring 80 has a lip portion. Therefore, it is possible to preferably suppress an increase in the insertion resistance of the connector 30 with respect to the mounting hole 17X due to the provision of the rubber ring 80.
　（他の実施形態）
　上記実施形態は、以下のように変更して実施することができる。上記実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。 (Other embodiments)
The above embodiment can be modified and implemented as follows. The above embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
　・上記実施形態では、ゴムリング８０の個数を１個としたが、ゴムリング８０の個数は特に限定されない。例えば、コネクタハウジング４０に対して複数のゴムリング８０を装着するようにしてもよい。 -In the above embodiment, the number of rubber rings 80 is set to 1, but the number of rubber rings 80 is not particularly limited. For example, a plurality of rubber rings 80 may be attached to the connector housing 40.
　・上記実施形態のゴムリング８０に外周リップ部や内周リップ部を設けるようにしてもよい。この場合であっても、ゴムリング８０の潰し代は、ゴムリング７０の潰し代よりも小さくなるように設定される。 -The rubber ring 80 of the above embodiment may be provided with an outer peripheral lip portion or an inner peripheral lip portion. Even in this case, the crushing allowance of the rubber ring 80 is set to be smaller than the crushing allowance of the rubber ring 70.
　・上記実施形態におけるゴムリング８０のデュロメータＡ硬度を、ゴムリング７０のデュロメータＡ硬度と同じ硬度、もしくはゴムリング７０のデュロメータＡ硬度よりも高くなるように設定してもよい。 -The durometer A hardness of the rubber ring 80 in the above embodiment may be set to be the same as the durometer A hardness of the rubber ring 70 or higher than the durometer A hardness of the rubber ring 70.
　・上記実施形態におけるゴムリング８０の含油率を、ゴムリング７０の含油率と同じ含油率、もしくはゴムリングの含油率よりも低くなるように設定してもよい。 -The oil content of the rubber ring 80 in the above embodiment may be set to be the same as the oil content of the rubber ring 70 or lower than the oil content of the rubber ring.
　・上記実施形態の収容溝４２Ｙを、筒部４５の外周面４２Ａに形成するようにしてもよい。 -The accommodating groove 42Y of the above embodiment may be formed on the outer peripheral surface 42A of the tubular portion 45.
　・上記実施形態におけるゴムリング７０とゴムリング８０とを、１つの収容溝にまとめて収容するようにしてもよい。この場合であっても、ゴムリング７０，８０のうちゴムリング８０が挿入方向Ｄ１の手前側に設けられる。 -The rubber ring 70 and the rubber ring 80 in the above embodiment may be collectively accommodated in one accommodating groove. Even in this case, the rubber ring 80 of the rubber rings 70 and 80 is provided on the front side in the insertion direction D1.
　・上記実施形態におけるゴムリング８０に代えて、ゴム以外の弾性体からなるリング部材を採用するようにしてもよい。この場合であっても、リング部材の表面には油等の潤滑剤からなる膜が形成されていることが好ましい。 -Instead of the rubber ring 80 in the above embodiment, a ring member made of an elastic body other than rubber may be adopted. Even in this case, it is preferable that a film made of a lubricant such as oil is formed on the surface of the ring member.
　・上記実施形態では、コネクタとして機器側のコネクタ３０に具体化したが、これに限定されない。例えば、コネクタとして電線側コネクタ２２に具体化してもよい。この場合には、電線側コネクタ２２にゴムリング８０が設けられる。 -In the above embodiment, the connector 30 is embodied as a connector on the device side, but the present invention is not limited to this. For example, the connector may be embodied in the electric wire side connector 22. In this case, the rubber ring 80 is provided on the electric wire side connector 22.
　・上記実施形態では、相手ケースとしてインバータ１１や高圧バッテリ１２等の電気機器が有するケース１５に具体化したが、これに限定されない。例えば、相手ケースとして、電線側コネクタ２２の有するシールドシェルに具体化してもよい。この場合には、例えば、フード部４１にゴムリング８０が設けられる。 -In the above embodiment, the other case is embodied in the case 15 of an electric device such as an inverter 11 or a high-voltage battery 12, but the present invention is not limited to this. For example, as a mating case, it may be embodied in a shield shell included in the electric wire side connector 22. In this case, for example, the rubber ring 80 is provided on the hood portion 41.
　・上記実施形態では、端子金具５０が雄型端子部５２を有するようにしたが、これに限定されない。例えば、端子金具５０が雌型端子部を有するようにしてもよい。この場合には、例えば、電線側コネクタ２２が雄型端子部を有することになる。 -In the above embodiment, the terminal fitting 50 has a male terminal portion 52, but the present invention is not limited to this. For example, the terminal fitting 50 may have a female terminal portion. In this case, for example, the electric wire side connector 22 has a male terminal portion.
　・上記実施形態のコネクタハウジング４０に装着される端子金具５０の個数は、特に限定されない。端子金具５０の個数は、１個であってもよく、３個以上であってもよい。 -The number of terminal fittings 50 mounted on the connector housing 40 of the above embodiment is not particularly limited. The number of terminal fittings 50 may be one or three or more.
　・車両におけるインバータ１１と高圧バッテリ１２の配置関係は、上記実施形態に限定されるものではなく、車両構成に応じて適宜変更してもよい。 -The arrangement relationship between the inverter 11 and the high-voltage battery 12 in the vehicle is not limited to the above embodiment, and may be appropriately changed according to the vehicle configuration.
　・上記実施形態では、導電路１０によって接続される電気機器としてインバータ１１及び高圧バッテリ１２を採用したが、これに限定されない。例えば、インバータ１１と車輪駆動用のモータとを接続する電線に採用してもよい。すなわち、車両に搭載される電気機器間を電気的に接続するものであれば適用可能である。 -In the above embodiment, the inverter 11 and the high-voltage battery 12 are adopted as the electric devices connected by the conductive path 10, but the present invention is not limited to this. For example, it may be used for an electric wire connecting the inverter 11 and the motor for driving the wheels. That is, it is applicable as long as it electrically connects the electric devices mounted on the vehicle.
　本開示は、以下の実装例を包含する。限定のためでなく、理解の補助として例示的な実施形態のいくつかの構成要素の参照符号を付した。以下の実装例において記述した事項のうちの一部を省略してもよく、実装例において記述した事項のうちのいくつかを選択または抽出して組合せてもよい。 This disclosure includes the following implementation examples. Reference symbols have been added to some of the components of the exemplary embodiments, not for limitation, but as an aid to understanding. Some of the items described in the following implementation examples may be omitted, or some of the items described in the implementation examples may be selected or extracted and combined.
　［付記１］本開示の一または複数の実装例は、電気機器（１５）の外側から前記電気機器（１５）の貫通孔（１７Ｘ）に後付けするように構成されたコネクタ（３０）に向けられており、前記コネクタ（３０）は、
　複数の金属端子（５０）と、
　前記複数の金属端子（５０）を固定的に支持する端子保持部（４６）を含む絶縁性のコネクタハウジング（４０）と
を備えることができ、
　前記コネクタハウジング（４０）は、
　　前記コネクタ（３０）が前記貫通孔（１７Ｘ）に完全に装着された状態で（図７）前記電気機器（１５）の外側に突出するフード（４１）と、
　　前記コネクタ（３０）が前記貫通孔（１７Ｘ）に完全に装着された状態で（図７）前記貫通孔（１７Ｘ）に囲まれる筒（４５）と、
　前記貫通孔（１７Ｘ）の内周面と前記筒（４５）の外周面との間で圧縮状態で挟まれ、前記コネクタ（３０）と前記貫通孔（１７Ｘ）とを液密的にシールするように構成されたリップシールリング（７０）と、
　前記貫通孔（１７Ｘ）の内周面と前記筒（４５）の外周面との間で圧縮状態で挟まれ、前記コネクタ（３０）と前記貫通孔（１７Ｘ）との摩擦抵抗を低減するための潤滑成分がそこから染み出すように構成された潤滑用リング（８０）と
を備えることができる。 [Appendix 1] One or more mounting examples of the present disclosure are directed from the outside of an electrical device (15) to a connector (30) configured to be retrofitted to a through hole (17X) of the electrical device (15). The connector (30) is
With multiple metal terminals (50),
An insulating connector housing (40) including a terminal holding portion (46) that fixedly supports the plurality of metal terminals (50) can be provided.
The connector housing (40) is
With the connector (30) fully attached to the through hole (17X) (FIG. 7), the hood (41) protruding outward from the electrical device (15), and
With the connector (30) fully attached to the through hole (17X) (FIG. 7), a cylinder (45) surrounded by the through hole (17X).
It is sandwiched between the inner peripheral surface of the through hole (17X) and the outer peripheral surface of the cylinder (45) in a compressed state so as to liquidally seal the connector (30) and the through hole (17X). Lip seal ring (70) configured in
To reduce the frictional resistance between the connector (30) and the through hole (17X) by being sandwiched between the inner peripheral surface of the through hole (17X) and the outer peripheral surface of the cylinder (45) in a compressed state. A lubrication ring (80) configured so that the lubricating component exudes from it can be provided.
　［付記２］本開示のいくつかの実装例では、前記潤滑用リング（８０）は、そこから潤滑油が染み出すように構成されたオイリーリングであってよい。 [Appendix 2] In some implementation examples of the present disclosure, the lubricating ring (80) may be an oily ring configured so that lubricating oil exudes from the ring (80).
　［付記３］本開示のいくつかの実装例では、前記コネクタ（３０）を前記電気機器（１５）の外側から前記貫通孔（１７Ｘ）に後付けするときに、前記リップシールリング（７０）が前記貫通孔（１７Ｘ）の前記内周面と接触するのに先立って、前記潤滑用リング（８０）が前記貫通孔（１７Ｘ）の前記内周面と接触するように、前記コネクタ（３０）は構成され得る（図４）。 [Appendix 3] In some implementation examples of the present disclosure, when the connector (30) is retrofitted to the through hole (17X) from the outside of the electric device (15), the lip seal ring (70) is said. The connector (30) is configured such that the lubricating ring (80) contacts the inner peripheral surface of the through hole (17X) prior to contacting the inner peripheral surface of the through hole (17X). Can be done (Fig. 4).
　［付記４］本開示のいくつかの実装例では、前記コネクタ（３０）が前記電気機器（１５）の前記貫通孔（１７Ｘ）に後付けされる前の前記コネクタ（３０）の自然状態において、前記コネクタハウジング（４０）上での前記潤滑用リング（８０）の最大外径は、前記コネクタハウジング（４０）上での前記リップシールリング（７０）の最大外径よりも小さい（図３（ｂ））。 [Appendix 4] In some implementation examples of the present disclosure, in the natural state of the connector (30) before the connector (30) is retrofitted to the through hole (17X) of the electrical device (15). The maximum outer diameter of the lubricating ring (80) on the connector housing (40) is smaller than the maximum outer diameter of the lip seal ring (70) on the connector housing (40) (FIG. 3 (b)). ).
　・今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した意味ではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。 ・ It should be considered that the embodiment disclosed this time is an example in all respects and is not restrictive. The scope of the present invention is indicated by the scope of claims, not the above-mentioned meaning, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
　１０　導電路
　１１　インバータ
　１２　高圧バッテリ
　１５　ケース
　１６　ケース本体
　１７　装着部
　１７Ｘ　装着孔
　１８　固定部
　１８Ｘ　ボルト固定孔
　２０　ワイヤハーネス
　２１　電線
　２２　電線側コネクタ
　２３　保護管
　３０　コネクタ
　４０　コネクタハウジング
　４１　フード部
　４１Ｘ　収容溝
　４２　挿入部
　４２Ａ　外周面
　４２Ｘ　収容溝（第１収容溝）
　４２Ｙ　収容溝（第２収容溝）
　４３　固定部
　４３Ｘ　ボルト挿通孔
　４４　カラー
　４５　筒部
　４６　端子保持部
　４７　保持孔
　４８　仕切壁
　５０　端子金具
　５１　端子本体部
　５２　雄型端子部
　６０　ゴムリング
　７０　ゴムリング（第１ゴムリング）
　７１　内周リップ部
　７２　外周リップ部
　８０　ゴムリング（第２ゴムリング）
　Ｄ１　挿入方向
　Ｓ１　内部空間 10 Conductive path 11 Inverter 12 High-pressure battery 15 Case 16 Case body 17 Mounting part 17X Mounting hole 18 Fixing part 18X Bolt fixing hole 20 Wire harness 21 Wire 22 Wire side connector 23 Protective tube 30 Connector 40 Connector housing 41 Hood part 41X Storage groove 42 Insertion part 42A Outer peripheral surface 42X Accommodating groove (first accommodating groove)
42Y accommodation groove (second accommodation groove)
43 Fixing part 43X Bolt insertion hole 44 Color 45 Cylinder part 46 Terminal holding part 47 Holding hole 48 Partition wall 50 Terminal metal fittings 51 Terminal body part 52 Male terminal part 60 Rubber ring 70 Rubber ring (1st rubber ring)
71 Inner circumference lip part 72 Outer circumference lip part 80 Rubber ring (second rubber ring)
D1 insertion direction S1 internal space

Claims (5)

  1. 　相手ケースの装着孔に対して挿入方向に沿って挿入されるコネクタハウジングと、
    　前記コネクタハウジングの外周面に設けられ、前記コネクタハウジングの外周面と前記装着孔の内周面との間を防水する第１ゴムリングと、
    　前記コネクタハウジングの外周面に設けられた第２ゴムリングと、を有し、
    　前記第２ゴムリングは、油を含有した含油ゴムからなり、
    　前記第２ゴムリングは、前記第１ゴムリングよりも前記挿入方向の手前側に設けられており、
    　前記第２ゴムリングは、前記第１ゴムリングよりも潰し代が小さく設定されているコネクタ。     A connector housing that is inserted along the insertion direction into the mounting hole of the mating case,
    A first rubber ring provided on the outer peripheral surface of the connector housing and waterproofing between the outer peripheral surface of the connector housing and the inner peripheral surface of the mounting hole.
    It has a second rubber ring provided on the outer peripheral surface of the connector housing.
    The second rubber ring is made of oil-containing rubber containing oil.
    The second rubber ring is provided on the front side in the insertion direction with respect to the first rubber ring.
    The second rubber ring is a connector having a smaller crushing allowance than the first rubber ring.
  2. 　前記第１ゴムリングは、油を含有した含油ゴムからなり、
    　前記第２ゴムリングの含油率は、前記第１ゴムリングの含油率よりも高く設定されている請求項１に記載のコネクタ。     The first rubber ring is made of oil-containing rubber containing oil.
    The connector according to claim 1, wherein the oil content of the second rubber ring is set higher than the oil content of the first rubber ring.
  3. 　前記第２ゴムリングのデュロメータＡ硬度は、前記第１ゴムリングのデュロメータＡ硬度よりも低く設定されている請求項１又は請求項２に記載のコネクタ。 The connector according to claim 1 or 2, wherein the durometer A hardness of the second rubber ring is set lower than the durometer A hardness of the first rubber ring.
  4. 　前記第１ゴムリングは、前記第１ゴムリングの外周面から前記第１ゴムリングの径方向外側に突出して形成された外周リップ部を有し、
    　前記第２ゴムリングは、リップ部を有さない断面円形のＯリングである請求項１から請求項３のいずれか１項に記載のコネクタ。     The first rubber ring has an outer peripheral lip portion formed so as to project radially outward from the outer peripheral surface of the first rubber ring.
    The connector according to any one of claims 1 to 3, wherein the second rubber ring is an O-ring having a circular cross section and does not have a lip portion.
  5. 　前記コネクタハウジングは、
    　前記コネクタハウジングの外周面から前記コネクタハウジングの径方向内側に凹むように形成された第１収容溝と、
    　前記コネクタハウジングの外周面から前記コネクタハウジングの径方向内側に凹むように形成された第２収容溝と、を有し、
    　前記第１収容溝と前記第２収容溝とは前記挿入方向において互いに離れて設けられており、
    　前記第２収容溝は、前記第１収容溝よりも前記挿入方向の手前側に設けられており、
    　前記第１ゴムリングは、前記第１収容溝に収容されており、
    　前記第２ゴムリングは、前記第２収容溝に収容されている請求項１から請求項４のいずれか１項に記載のコネクタ。     The connector housing is
    A first accommodating groove formed so as to be recessed inward in the radial direction from the outer peripheral surface of the connector housing, and
    It has a second accommodating groove formed so as to be recessed inward in the radial direction from the outer peripheral surface of the connector housing.
    The first accommodating groove and the second accommodating groove are provided apart from each other in the insertion direction.
    The second accommodating groove is provided on the front side in the insertion direction with respect to the first accommodating groove.
    The first rubber ring is housed in the first housing groove.
    The connector according to any one of claims 1 to 4, wherein the second rubber ring is accommodated in the second accommodating groove.
PCT/JP2020/024002 2019-07-09 2020-06-18 Connector WO2021005998A1 (en)

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JP2022180803A (en) 2021-05-25 2022-12-07 ホシデン株式会社 Multiple co-axial connector
JP7384880B2 (en) * 2021-10-19 2023-11-21 矢崎総業株式会社 connector

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JP2003139248A (en) * 2001-11-01 2003-05-14 Nissin Kogyo Co Ltd Slave cylinder for clutch
JP2015133275A (en) * 2014-01-15 2015-07-23 株式会社オートネットワーク技術研究所 waterproof connector
JP2017067273A (en) * 2015-10-02 2017-04-06 三菱重工オートモーティブサーマルシステムズ株式会社 Seal structure of closed vessel and vehicle refrigerant compressor having the same
CN206163804U (en) * 2016-09-21 2017-05-10 阿特斯阳光电力集团有限公司 Connector set closes and plug thereof
CN109038126A (en) * 2018-07-04 2018-12-18 沈阳航天新光集团有限公司 A kind of high current watertight docking apparatus
JP2019060457A (en) * 2017-09-28 2019-04-18 積水化学工業株式会社 Cleaning port joint
US20200099164A1 (en) * 2018-09-24 2020-03-26 Te Connectivity Corporation Electrical connector and connector assembly having a seal gland

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003139248A (en) * 2001-11-01 2003-05-14 Nissin Kogyo Co Ltd Slave cylinder for clutch
JP2015133275A (en) * 2014-01-15 2015-07-23 株式会社オートネットワーク技術研究所 waterproof connector
JP2017067273A (en) * 2015-10-02 2017-04-06 三菱重工オートモーティブサーマルシステムズ株式会社 Seal structure of closed vessel and vehicle refrigerant compressor having the same
CN206163804U (en) * 2016-09-21 2017-05-10 阿特斯阳光电力集团有限公司 Connector set closes and plug thereof
JP2019060457A (en) * 2017-09-28 2019-04-18 積水化学工業株式会社 Cleaning port joint
CN109038126A (en) * 2018-07-04 2018-12-18 沈阳航天新光集团有限公司 A kind of high current watertight docking apparatus
US20200099164A1 (en) * 2018-09-24 2020-03-26 Te Connectivity Corporation Electrical connector and connector assembly having a seal gland

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