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EP0634818A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Charge coupling for electric vehicle

Assignee: Sumitomo Wiring Systems Ltd
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Filing: 1994-07-12
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Granted: —
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Expires: 2014-07-12
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Abstract

Abstract In the case that impelling of a supply connector 2 is stopped before the supply connector 2 is completely fitted to a vehicle inlet 1, the supply connector 2 is returned to a half fitting position by a biasing force exerted in a compression coil spring 20. In this position, plunger balls engage with recesses 72 to temporarily maintain the supply connector 2 at the position in the vehicle inlet. Thus, an operator finds that the supply connector is under an incomplete state. Since the supply connector 2 is temporarily held in the vehicle inlet 1, the connector 2 is prevented from falling down from the inlet 1. A connector housing 3 is provided on its upper face with a flap lid 8 to close an opening of the connector housing 3. A torsion spring 11 is mounted on a support axle 10 of the flap lid 8 to normally bias the flap lid 8 in an open direction. The connector housing 3 is provided on a lower portion with locking means 100 which holds the flap lid 8 at a closed position. The flap lid 8 is opened when the locking means 100 are released and the flap lid 8 is closed when the locking means 100 are actuated. A connector housing 19 is provided on an area around a central lower earth terminal 213 with a reversed U-shaped groove 231. The groove 231 prevents a water film from spreading on a fitting face 215a of the supply connector 2, even if rainwater adheres to the face 215a, thereby preventing short circuiting between terminals. A cylindrical cap 320 is attached to a connecting mouth 304 of a cavity 302. A positioning hole 323 in the cap 320 encloses a front end of a terminal 310 with a little clearance. Even if an external force is applied to the terminal 310, it is held coaxially in the cavity 302 without shifting the end of the terminal 310 in the cavity 302. A mating terminal can be smoothly coupled to a fitting portion 311 on the front end of the terminal 310.

Inventors

  • 👤 Hikaru C/O Sumitomo Wiring Systems Ltd. Itou
  • 👤 Sho C/O Sumitomo Wiring Systems Ltd. Miyazaki
  • 👤 Tsutomu C/O Sumitomo Wiring Systems Ltd. Tanaka
  • 👤 Masashi C/O Sumitomo Wiring Systems Ltd. Saito
  • 👤 Shinichi C/O Sumitomo Wiring Systems Ltd Yamada
  • 👤 Shigekazu C/O Sumitomo Wiring Syst. Ltd. Wakata
  • 👤 Eiji Sumitomo Wiring Systems Ltd. Saijo

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 12:40
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/70; H02J7/751; B; B60; B60L; B60L53/00; B60L53/10; B60L53/14; B60L53/16; B60L53/60; B60L53/65; H01; H01R; H01R13/00; H01R13/44; H01R13/447; H01R13/46; H01R13/52; H01R13/5213; H01R13/5227; H01R13/64; H01R13/641; H01R13/66; H01R13/70; B60K; B60K1/00; B60K1/04; B60L2270/00; B60L2270/30; B60L2270/32; B60L2270/34; H01R13/62; H01R13/627; H01R13/6276; H01R2107/00; H01R2201/00; H01R2201/26; H01R24/00; H01R24/20; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072; Y02T90/00; Y02T90/10; Y02T90/12; Y02T90/14; Y02T90/16; Y02T90/167; Y04; Y04S; Y04S30/00; Y04S30/10; Y04S30/14

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 63 words
A charge coupling for an electric vehicle wherein conduction is enabled from a power source on the ground to a battery on the electric vehicle when a supply connector connected to said power source is completely fitted to a vehicle inlet installed in the electric vehicle, comprising: means for temporarily locking said supply connector to said vehicle inlet at a half fitting position.
Claim 2
Dependent Claim 55 words
A charge coupling according to Claim 1, further comprising: means for biasing said supply connector toward a returned position when said supply connector is inserted into said vehicle inlet, said locking means being adapted to temporarily maintaining said supply connector at said half fitting position when said supply connector is returned by said biasing means.
Claim 3
Dependent Claim 163 words
A charge coupling according to Claim 2, wherein said locking means are provided on a lower and inner part of a housing of said vehicle inlet with a ridge extending axially, wherein said ridge is fitted in an engaging groove in said supply connector to guide said supply connector upon inserting said connector into said vehicle inlet, wherein said ridge is provided on its opposite longitudinal sides with guide slots which engage with plunger balls received in said supply connector, wherein said guide slots are provided with recesses on their middle portions which are disposed at said incomplete fitting position on which said supply connector is temporarily locked to said vehicle inlet, and wherein said biasing means include a double cylindrical housing having an inner housing and an outer housing and a compression coil spring disposed in a clearance between said inner and outer housing so that an end of said coil spring elastically contact with an opening edge of said vehicle inlet.
Claim 4
Dependent Claim 54 words
A charge coupling according to Claim 2, further comprising a flap lid mechanism including a flap lid swingably mounted on an opening end of said vehicle inlet, an elastic member for biasing said flap lid toward an opened position, and means for latching said flap lid at a closed position on said opening end.
Claim 5
Dependent Claim 31 words
A charge coupling according to Claim 2, wherein said supply connector is provided on its fitting face and an area between terminals with means for diverting water on said fitting face.
Claim 6
Dependent Claim 29 words
A charge coupling according to Claim 5, wherein said diverting means is a recess or a ridge formed on said fitting face to section said area between said terminals.
Claim 7
Dependent Claim 103 words
A charge coupling according to Claim 2, wherein a plurality of terminals having a circular cross section are inserted into a plurality of cavities having a circular cross section and provided in said inner housing of said supply connector, respectively, wherein said terminal is provided on its outer periphery with a plurality of lances so that said lances elastically contact with an inner periphery of said cavity to hold said terminal in said cavity coaxially, and wherein a positioning member is fitted in a connecting port of said cavity to be coupled to said vehicle inlet to enclose an end of said terminal.
Claim 8
Dependent Claim 17 words
A charge coupling according to Claim 7, wherein each positioning member is separately fitted in each cavity.
Claim 9
Dependent Claim 16 words
A charge coupling according to Claim 7, wherein a plurality of positioning members are formed integrally.
Claim 10
Dependent Claim 236 words
A charge coupling according to Claim 1, wherein said supply connector is connected to a charger through a charge cable and is provided coaxially in a connector housing with supply terminals, wherein said vehicle inlet is installed on a vehicle body of an electric vehicle and is provided coaxially in an inlet housing with terminals adapted to be coupled to said supply terminals, wherein said locking means are provided circumferentially on a distal end of either said vehicle inlet or said supply connector, wherein said locking means include a spiral groove which extends from a half fitting position of said supply connector relative to said vehicle inlet to a complete fitting position of said supply connector relative to said vehicle inlet and an engageable boss which projects from a distal end of the other one of said vehicle inlet and supply connector and is adapted to detachably engage with said spiral groove, wherein said supply connector is provided on its outer periphery with a handle which assists said supply connector in rotating so that said engageable boss moves in said spiral groove from a beginning end to a terminating end and vice versa, and wherein holding means are provided on either said vehicle inlet or said supply connector and serve to maintain said supply connector at said complete fitting position in said vehicle inlet when said engageable boss reaches the terminating end of said spiral groove.
Claim 11
Dependent Claim 20 words
A charge coupling according to Claim 1, wherein an end of said supply connector is covered with a protective member.
Claim 12
Dependent Claim 48 words
A charge coupling according to Claim 11, wherein said supply connector is provided on its outer periphery of the end with an engageable portion and said protective member is made of a rubber material and formed into a crown like shape to be mounted on said engageable portion.
Claim 13
Dependent Claim 46 words
A charge coupling according to Claim 1, wherein an electric vehicle is provided on its body with an accommodating chamber which is open outwardly to expose said vehicle inlet, and wherein said accommodating chamber is provided on its interior with a draining mechanism including inclined walls.
Claim 14
Dependent Claim 20 words
A charge coupling according to Claim 13, wherein the interior of said accommodating chamber is covered with a water-repelling layer.
Claim 15
Dependent Claim 21 words
A charge coupling according to Claim 14, wherein said accommodating chamber is provided on its interior with a water collection groove.
Claim 16
Dependent Claim 29 words
A charge coupling according to any one of Claims 13 through 15, wherein said accommodating chamber is provided with a draining port in the vicinity of an opening edge.
Claim 17
Dependent Claim 35 words
A charge coupling according to any one of Claims 13 through 16, wherein a cover attached to an opening of said accommodating chamber is provided with a heater which heats the interior of the chamber.

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