EP0968550A1 - Lamp socket - Google Patents
Lamp socketInfo
- Publication number
- EP0968550A1 EP0968550A1 EP98910129A EP98910129A EP0968550A1 EP 0968550 A1 EP0968550 A1 EP 0968550A1 EP 98910129 A EP98910129 A EP 98910129A EP 98910129 A EP98910129 A EP 98910129A EP 0968550 A1 EP0968550 A1 EP 0968550A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- lamp socket
- electrical
- main body
- wire
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
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
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/46—Two-pole devices for bayonet type base
-
- 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
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
Definitions
- the present invention relates to a lamp socket in which a lamp used in automobiles is connected.
- lamps used in automobiles have been connected to lamp sockets.
- lamp sockets are disclosed in Japanese Utility Model Application No. 62- 64985 and Japanese Utility Model Application No. 62-64986.
- Such lamp sockets are electrically connected to lamp electrodes at rear ends of the lamps.
- HID lamps have been used as head lamps in automobiles.
- Discharge lamps are lamps in which mercury, a metal halide compound or a rare gas, such as xenon, is sealed inside the lamp.
- light is emitted by causing this substance to discharge by means of a pair of electrodes, thus realizing a high-brightness illumination with the color of sunlight.
- An important point in light systems using HID lamps is that a high voltage of approximately 20,000 V is required at the time that the discharge is initiated. Accordingly, a shielded cable is used as the cable connected to the lamp socket in order to prevent the generation of electromagnetic interference in other electrical circuits.
- a feature of the present invention is to provide a lamp socket in which a discharge lamp can be easily connected, and which has a high degree of safety.
- the present invention is directed to a lamp socket which receives a lamp, wherein the lamp socket includes a pair of housings which are installed so that the housings clamp electrical terminals which are connected to a plurality of wires of a shielded cable, each of the pair of housings has a main body section supporting the terminals, and an extension section used for the lead-out of wires which protrudes from the main body section, and a shielding conductor of the shielded cable is fastened to outside surfaces of the extension sections.
- the lamp socket can be engaged by relative pivoting after being installed so that the lamp socket is superimposed on a discharge lamp which has been fastened to a housing or reflective mirror beforehand.
- terminal-accommodating grooves which accommodate the electrical terminals, are formed in one of the pair of housings, and terminal-supporting ribs including engaging parts, which have dimensions that are substantially complementary to the terminal-accommodating grooves, and which substantially engage the terminals, are formed in the other housing. It is desirable that the terminal-accommodating grooves and terminal-supporting ribs be constructed so that the terminal-accommodating grooves and terminal-supporting ribs can be engaged along the direction of length of the terminals.
- wire-accommodating grooves which accommodate the respective wires, are formed in one of the pair of housings
- wire-engaging ribs which have dimensions that are substantially complementary to the wire-accommodating grooves, are formed in the other of the pair of housings. It is desirable that the wire- accommodating grooves and wire-engaging ribs be constructed so that the wire-accommodating grooves and wire-engaging ribs can be engaged along the direction of length of the wires.
- the fastening means used to fasten the shielding conductor is constructed so that a metal clip clamps the shielding conductor to the outside surfaces of the extension sections.
- a lamp socket comprising a housing having electrical terminals disposed therein, and electrical wires of an electrical cable electrically connected to respective electrical terminals, wherein the housing includes a first housing and a second housing each of which has a main body section supporting the electrical terminals and an extension section along which the electrical wires extend, and latch members on the first housing and the second housing latching the first housing and the second housing together.
- Figure 1 is a perspective exploded view of a lamp socket of the present invention and a discharge lamp.
- Figure 2 is an exploded perspective view of the lamp socket shown in Figure 1.
- Figure 3 is a perspective view which shows a plurality of electrical terminals to which electrical wires are connected accommodated in the first housing used in the lamp socket shown in Figure 1.
- Figure 4 is a perspective view which illustrates the inside structure of the second housing used in the lamp socket shown in Figure 1.
- the lamp socket 10 of the present invention has first and second housings 20 and 50, and a metal clip 90.
- the first housing 20 has a lamp- receiving section 21 on one side. Section 21 receives a rear portion 6 of discharge lamp 5 and establishes an electrical connection between the discharge lamp 5 and the lamp socket 10.
- a projection 7 is located on a side surface of the rear portion 6 of the lamp 5.
- the lamp 5 is fastened to a housing or reflective mirror (not shown) .
- the projection 7 of the discharge lamp 5 is accommodated inside a slot 22 formed in the lamp-receiving section 21; as a result, the lamp socket 10 and discharge lamp 5 are engaged, (not shown) fastened and electrically connected together.
- Another projection 7 is located opposite projection 7 and it engages a slot 22 (not shown) opposite slot 22.
- Ribs 59 which have an anti-slip action thereby facilitating rotation of lamp socket 10, are disposed on an outside surface of the second housing 50. Ribs 59 are also disposed in symmetrical positions as viewed from behind the page, although these are not shown.
- the first and second housings 20, 50 respectively have main body sections 27, 57 which support the terminals (described later) , and extension sections 28, 58 which extend in the direction in which the wires extend from lamp socket 10.
- the extension sections 28, 58 respectively have substantially flat outside surfaces 23, 53 which form a continuous surface when the first and second housings 20, 50 are combined as a socket.
- terminal-accommodating grooves 23a, 23b, 24, 25, which separately accommodate respective electrical terminals 31a, 31b, 32, 33, and wire- accommodating grooves 26a, 26b, 26c, which accommodate four wires 41a, 41b, 42 and 43, that are electrically connected to the respective terminals 31a, 31b, 32, 33 by crimping, are formed in the opposite side of the first housing 20 from the engagement section 21.
- Central wire 43 is a relatively large diameter wire to which high voltage is supplied.
- Wire-accommodating groove 26a is formed so that it accommodates two relatively small diameter wires 41a, 41b.
- terminal-accommodating grooves 23a, 23b communicate with the wire-accommodating groove 26a
- terminal-accommodating grooves 24, 25 respectively communicate with the wire-accommodating grooves 26b, 26c.
- the wire-accommodating grooves 26a-26c extend as continuations into extension section 28 from the main body section 27.
- a substantially U-shaped groove 26d is formed around the periphery of the terminal-accommodating groove 25 and wire-accommodating groove 26c which accommodate the central terminal 33 and wire 43. The groove 26d also continues into the extension section 28 from the main body section 27.
- a substantially U-shaped wall 54 which protrudes from a bottom wall, and a plurality of projections 55a-55d and 56a-56c which also protrude from the bottom wall are located to the inside and outside of the wall 54, and they are located on the inside of the main body section 57 of the second housing 50.
- the substantially U-shaped wall 54 has a shape which is complementary to that of the substantially U-shaped groove 26d.
- Ribs 51a-51c are located on an inside surface of the extension section 58 of the second housing 50 in positions corresponding to the wire-accommodating grooves 26a-26c, and ribs 52a, 52b are located in positions corresponding to the groove 26d.
- the rib 51c is formed with a relatively large dimension.
- a recess 65 is formed in the rib 51c in a position corresponding to the location of wire 43.
- both housings are fastened or latched together by engagement of the projections 61 of the first housing 20 within the rectangular slots 62, which pass through the second housing 50 and are in alignment with projections 61.
- the wall 54 of the main body section 57 of the second housing 50 and the ribs 52a, 52b of the extension section 58 engage with the groove 26d of the first housing 20 so that these parts interengage.
- the wire 43 and terminal 33 are used to supply a high voltage.
- the surface distance from the wire 43 and terminal 33 to the other wires and terminals is lengthened, so that the occurrence of electrical discharges is prevented.
- terminals 31a, 31b, 32 are disposed so that plate sections 35a, 35b and 36, formed by bending, and crimping sections 37a, 37b and 38 of terminals 31a, 31b, 32 face to the rear.
- the terminal 33 is disposed so that a crimping section 39 faces to the rear.
- the terminals 31a, 31b, 32, 33 respectively terminate wires 41, 41b, 42, 43 in the crimping sections 37a, 37b, 38, 39 in the direction of length of the connected wires 41a, 41b, 42, 43.
- the projections 55a-55d substantially engage the respective crimping sections 37a, 37b, 38, 39 of the terminals 31a, 31b, 32, 33.
- the projections 56a-56c substantially engage the respective plate sections 35a, 35b, 36 of the terminals 31a, 31b, 32.
- the terminals 31a, 31b, 32, 33 are supported so that the terminals are clamped between the first and second housings 20, 50. Furthermore, when the first and second housings 20, 50 are assembled, the ribs 51a-51c of the extension section 58 of the second housing 50 are engaged and accommodated in the wire-accommodating grooves 26a-26c of the extension section 28 of the first housing 20. As a result, the accommodated wires 41a, 41b, 42, 43 are supported inside the wire-accommodating grooves 26a-26c, and strain relief action is effected on the wires.
- the four wires 41a, 41b, 42, 43 described above extend from a single shielded cable and are disposed inside a shielding conductor or braided wire 8.
- Shielding conductor 8 is subjected to a termination operation after the first and second housings 20, 50 have been fastened together.
- the shielding conductor 8 is indicated by broken lines in Figure 1.
- the shielding conductor 8 is installed on the continuous outside surfaces 23, 53 of the extension sections 28, 58 of the first and second housings 20, 50 and is fastened in place by being clamped thereon by the metal clip 90.
- Metal clip 90 is deformed and firmly fastens the shielding conductor 8 in place along extension sections 28, 58 ( Figure 1) .
- this shielding conductor 8 is fastened in place on the outside of housings 20, 50 in a position sufficiently separated from the terminal 33 and wire 43 to which a high voltage is applied, there is no danger of discharge. It was noted above that the engagement and fastening of the lamp socket 10 and discharge lamp 5 are accomplished by rotating the lamp socket 10 relative to the discharge lamp 5, and that this operation is accomplished by gripping ribs 59 on the second housing 50 and rotating lamp socket 10.
- the rotational force applied to the second housing 50 during this rotational operation can be effectively transmitted to the first housing 20.
- the external shape of the housing of the lamp socket 10 is a shape in which relatively small extension sections 28, 58 protrude from the main body sections 27, 57 as integral parts thereof.
- a lamp socket of the present invention has been described above; however, it is merely an example, and does not limit the present invention.
- Various modifications and alterations may be made by a person skilled in the art.
- the fastening of the shielding conductor 8 could also be accomplished by means of a tape instead of the metal clip 90 described above.
- the tape may be either conductive or non- conductive.
- the lamp socket of the present invention includes first and second housings which are latched together so that the housings clamp electrical terminals therein which are connected to a plurality of electrical wires of a shielded cable. Furthermore, each of the first and second housings has a main body section which supports the terminals and an extension section for the wires which extend from the main body section, and a shielding conductor of the shielded cable is fastened to the outside surfaces of the extension sections . Accordingly, a lamp socket which allows easy connection to a discharge lamp, and which has a high degree of safety, is obtained.
- the shielding conductor is securely connected in place on the outsides of the housings in a position sufficiently separated from a terminal and wire to which a high voltage is applied, there is no danger of electrical discharge. Moreover, even if fingers of the operator should catch on the extension sections during the engagement and connection of the lamp socket to a discharge lamp, no loosening of the connection of the shielding conductor to the socket occurs . Accordingly, a high degree of safety is obtained when using the lamp socket of the present invention.
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connecting Device With Holders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8330397 | 1997-03-17 | ||
JP8330397A JPH10261472A (en) | 1997-03-17 | 1997-03-17 | Lamp socket |
PCT/US1998/004093 WO1998042049A1 (en) | 1997-03-17 | 1998-03-03 | Lamp socket |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0968550A1 true EP0968550A1 (en) | 2000-01-05 |
EP0968550B1 EP0968550B1 (en) | 2002-05-15 |
Family
ID=13798652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98910129A Expired - Lifetime EP0968550B1 (en) | 1997-03-17 | 1998-03-03 | Lamp socket |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0968550B1 (en) |
JP (1) | JPH10261472A (en) |
AU (1) | AU6444598A (en) |
DE (1) | DE69805402T2 (en) |
WO (1) | WO1998042049A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2793611B1 (en) * | 1999-05-10 | 2001-06-22 | Axo Scintex Cie Equip Automobi | ELECTRICAL SOCKET |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982813A (en) * | 1975-11-19 | 1976-09-28 | General Motors Corporation | Weather sealed lamp socket assembly |
US4101187A (en) * | 1977-06-30 | 1978-07-18 | Collier Ben C | Socket for wedge base bulbs |
GB2248149B (en) * | 1990-08-31 | 1994-07-13 | Koito Mfg Co Ltd | Discharge lamp connector assembly |
DE4139905A1 (en) * | 1991-12-04 | 1993-06-09 | Robert Bosch Gmbh, 7000 Stuttgart, De | Plug connector for gas discharge lamp connected in spotlight holder - has plastics material plug housing releasably attached to spotlight holder contg. HV cable leads separated from each other by plastics material |
JP3142052B2 (en) * | 1996-08-02 | 2001-03-07 | ヒロセ電機株式会社 | Lamp socket |
-
1997
- 1997-03-17 JP JP8330397A patent/JPH10261472A/en active Pending
-
1998
- 1998-03-03 AU AU64445/98A patent/AU6444598A/en not_active Abandoned
- 1998-03-03 EP EP98910129A patent/EP0968550B1/en not_active Expired - Lifetime
- 1998-03-03 WO PCT/US1998/004093 patent/WO1998042049A1/en active IP Right Grant
- 1998-03-03 DE DE69805402T patent/DE69805402T2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9842049A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE69805402D1 (en) | 2002-06-20 |
DE69805402T2 (en) | 2003-01-09 |
WO1998042049A1 (en) | 1998-09-24 |
AU6444598A (en) | 1998-10-12 |
EP0968550B1 (en) | 2002-05-15 |
JPH10261472A (en) | 1998-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6224428B1 (en) | Electrical connector and method of assembling and connecting the same with circuit devices | |
CN1112744C (en) | Electrical multi-pole plug-and-socket-type connector with associated socket part | |
US5720546A (en) | Integrated ballast and lamp connector | |
CA2158706C (en) | Improved battery holder for a printed circuit board | |
EP0605200B1 (en) | Press-contact connector assembly | |
GB2197548A (en) | I.D.C terminal block with cable clamps | |
US7070443B2 (en) | Structure for connecting a combination lamp | |
US6626698B2 (en) | Holder for a flat circuit member | |
US6162084A (en) | Lamp socket | |
GB2268842A (en) | Contact blank and shielded electrical connectors | |
US6129565A (en) | Cable connector having a grounding device | |
CA2556532A1 (en) | Lamp socket with stabilizing features | |
EP0968550B1 (en) | Lamp socket | |
JP2005216851A (en) | Connecting element for electric connection of main headlamp to lamp holder | |
JPH1069932A (en) | Contact spring | |
JPH09171848A (en) | Electric connector | |
JPH0638338A (en) | Press contact structure between bus bar and wire | |
TW202205748A (en) | Anti-loss transmission device set for effectively preventing attenuation during signal transmission | |
KR102673378B1 (en) | Connector assembly | |
JP3456688B2 (en) | Discharge lamp socket and method of assembling and connecting the same to a circuit device | |
WO1990016098A1 (en) | Connection terminals for rigid-wire loop cartridge light bulbs | |
JP2982102B2 (en) | Waterproof connector | |
JPS6016039Y2 (en) | Multi-pole terminal for grounding | |
WO1997041624A1 (en) | Electrical socket for two plugs | |
JP2806458B2 (en) | Power supply circuit for vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19991004 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20010516 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 69805402 Country of ref document: DE Date of ref document: 20020620 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030218 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20070319 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080327 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080430 Year of fee payment: 11 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20081125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080331 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090303 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090303 |