WO2011114098A1 - Uv lamp - Google Patents

Uv lamp Download PDF

Info

Publication number
WO2011114098A1
WO2011114098A1 PCT/GB2011/000362 GB2011000362W WO2011114098A1 WO 2011114098 A1 WO2011114098 A1 WO 2011114098A1 GB 2011000362 W GB2011000362 W GB 2011000362W WO 2011114098 A1 WO2011114098 A1 WO 2011114098A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
housing
connecting means
plug
protrusion
Prior art date
Application number
PCT/GB2011/000362
Other languages
French (fr)
Inventor
James Hicks
Malcolm Rae
Original Assignee
Gew(Ec) Limited
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 Gew(Ec) Limited filed Critical Gew(Ec) Limited
Publication of WO2011114098A1 publication Critical patent/WO2011114098A1/en

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
    • H01R33/20—Two-pole devices having concentrically or coaxially arranged contacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0406—Drying webs by radiation
    • B41F23/0409—Ultraviolet dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/045—Drying sheets, e.g. between two printing stations by radiation
    • B41F23/0453—Drying sheets, e.g. between two printing stations by radiation by ultraviolet dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/52—Means forming part of the tube or lamps for the purpose of providing electrical connection to it directly applied to or forming part of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • 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
    • H01R33/02—Single-pole devices, e.g. holder for supporting one end of a tubular incandescent or neon lamp

Definitions

  • the or each female receiving means is made of a PTFE, Crastin, or another insulating material.
  • the or each hollow protrusion is made of a PTFE, Crastin, or another insulating material.
  • the lamp head 24 comprises a housing or socket 26, which is a female mating portion configured to receive the plug 14 at the end of the lamp 10.
  • the housing 26 comprises an insulating body made of PTFE or Crastin. As shown in Figure 3(a), the housing 26 comprises a central, cylindrical opening 28 having substantially the same dimensions as the cylindrical section 16 of the plug 14. A hemispherical recess 27 along one side of the housing allows the incoming wire to be hidden during use. This keeps the wire away from moving parts and out of direct radiation emitted from the lamp 10.
  • the lamp 10 is removably connected to the lamp housing 28 by inserting the plug 14 at the lamp end into the recess of the housing 26 in such a way that the end 22 of the electrical connector 20 engages with a contact connected to the power supply cable 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Ink Jet (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A lamp housing (26) for an ink curing apparatus, the housing (24) comprising at least one female connecting means (26) configured to receive at least one protrusion (16) extending from the end of a lamp (14) to removably connect the lamp end (14) to a power supply (28).

Description

UV LAMP
The present invention relates to a UV lamp. More specifically, the invention relates to a UV lamp for use with ink curing apparatus used commonly in the printing industry.
Lamps used in ink curing apparatus generally comprise a glass tube with an electrode extending into each end of the lamp tube. It is common for the terminal assembly at each end of the tube to be pinch sealed and received within a ceramic block into which the free end of each electrode also extends. A wire extends out of the ceramic block for connection to the electricity supply to power the lamp. Existing lamp terminal arrangements are connected using a threaded screw clamped with a nut. To connect the lamp, for example when it is necessary to install a new lamp, tooling is required to connect the wire extending from the lamp to the power supply. UV lamps for use in ink curing machines are run at high intensities and consequently have a limited life span. Lamps have to be frequently cleaned and changed. The use of additional tooling increases the time, expense and complexity of maintaining the ink curing apparatus. Furthermore, the wires extending from the lamp can themselves become hot due to the high operating temperature of the lamp, which can make changing of the lamp a safety risk to the maintenance engineer.
The present invention seeks to alleviate the aforementioned disadvantages with known UV lamps by providing an improved lamp with simplified and safer construction and offering considerable cost benefits in maintenance of the UV curing apparatus.
In one aspect of the present invention there is provided a lamp housing for an ink curing apparatus, the housing comprising at least one housing connecting means configured to mate with at least one lamp connecting means extending from the end of a lamp to removably connect the lamp end to a power supply.
Preferably, the at least one housing connecting means comprises a female connecting means and the at least one lamp connecting means comprises at least one protrusion.
Alternatively, the at least one housing connecting means comprises at least one protrusion and the at least one lamp connecting means comprises a female connecting means.
The male/female mating arrangement of the separable plug terminal between the lamp and the lamp housing allows the lamp to be replaced without the need to use additional tooling. Maintenance is cheaper, quicker and more convenient, whilst still safeguarding the person changing the lamp from accidental contact with the electrical connections to the power supply.
In a second aspect, the present invention provides a UV lamp for an ink curing apparatus, the lamp comprising at least one protrusion adapted to mate with a corresponding female receiving means in a lamp housing to removably connect the lamp end to a power supply.
Preferably, the female receiving means comprises a cylindrical recess.
Preferably, the at least one protrusion comprises a hollow cylinder.
Preferably, the or each female receiving means is made of a PTFE, Crastin, or another insulating material. Preferably, the or each hollow protrusion is made of a PTFE, Crastin, or another insulating material.
One embodiment of the present invention will now be described by way of example with reference to the accompanying drawings, in which :
Figure 1 is a transverse cross-sectional view of one end of a two- ended lamp constructed in accordance with the present invention, showing the terminal arrangement with the lamp connected to the lamp housing;
Figures 2 (a) - (f) are views of the plug of the lamp terminal constructed in accordance with the present invention, wherein Figure 2(a) is a perspective view, Figure 2(b) is a view from a first end of the plug, Figure 2(c) is plan view from a first side of the plug; Figure 2(d) is a plan view from a second side of the plug; Figure 2(e) is a plan view from below; and Figure 2(f) is a front plan view; and
Figures 3 (a) - (g) are views of the housing of the lamp terminal constructed in accordance with the present invention, wherein Figure 3(a) is a perspective view from a first side, Figure 3(b) is a plan view from a first side; Figure 3 (c) is a plan view from above; Figure 3(d) is a plan from of a first end of the housing, Figure 3(e) is a plan view from below; Figure 3(f) is a perspective view from a second side and Figure 3g is a plan view from a second side.
Referring first to Figure 1, a lamp 10 for use with, for example, ink curing apparatus, comprises a rod-shaped, hollow, tubular main body 12 made, for example, of glass. The main body 12 has located therein chemical compounds to provide ultra violet (UV) heat when an electrical source is applied to the lamp 10. Each end of the lamp 10 (only one end is shown in Figure 1), is formed with a plug connector/terminal 14. The plug 14 is made of a polytetrafluoroethylene (PTFE) or a Crastin resin material. Referring to Figure 2, the plug 14 comprises a hollow, cylindrical section 16 and a collar section 18. The plug 14 is welded internally to a connection foil 20 extending from and in electrical connection with an electrode 22 projecting into the lamp 10. The plug 14 comprises a pinch seal 15, which is made by heating the lamp body 12 and then compressing the seal 15 into a flat shape. The collar 18 and the cylindrical section 16 of the plug are insulated from the connection wire/foil 20.
A sheathed wire 28 is brazed onto a hairpin 29. The wire is stripped back to allow a terminal to be crimped on. This requires sufficient force to be applied to prevent the crimp coming off. In an alternative embodiment, the crimp is fitted using ultrasonic welding. This replaces the need to physically deform the crimp around the wire.
The lamp head 24 comprises a housing or socket 26, which is a female mating portion configured to receive the plug 14 at the end of the lamp 10. The housing 26 comprises an insulating body made of PTFE or Crastin. As shown in Figure 3(a), the housing 26 comprises a central, cylindrical opening 28 having substantially the same dimensions as the cylindrical section 16 of the plug 14. A hemispherical recess 27 along one side of the housing allows the incoming wire to be hidden during use. This keeps the wire away from moving parts and out of direct radiation emitted from the lamp 10. The lamp 10 is removably connected to the lamp housing 28 by inserting the plug 14 at the lamp end into the recess of the housing 26 in such a way that the end 22 of the electrical connector 20 engages with a contact connected to the power supply cable 29.
The housing 26 is insulated from the power supply cable 29. The plug 14 includes a female sprung pin and the housing 26 comprises a male fixed pin. When the plug 14 and housing 26 are connected, the connection foil 20 of the plug is forced against the spring contact to firmly electrically connect the lamp 10 to the power supply cable 28. In use, the plug 14 is removably connected to the housing 26 and the collar 18 of the plug 14 abuts the end of the housing 26. The plug 14 has a "push-fit" connection with the housing 26. An internal clip holds the plug 14 and housing 26 together internally.
It is envisaged that alternative arrangements to force electrical connection between the lamp and the housing can be used.
It is also envisaged that the shape and configuration of the plug and housing can vary. For example, the plug may comprise a rectangular cuboidal protrusion, which mates with a corresponding rectangular cuboidal hollow in the housing.
When the lamp 10 is spent, the lamp 10 is removed by simply disengaging the plug 14 from the connector housing 26 of the lamp head 24 and removing the lamp 10 from the apparatus.
The electrical connection takes place entirely within the housing 26 for heat absorption. The simple mating arrangement between the plug 14 and the housing 26 provides a compact arrangement, whereby the lamp 10 and lamp head 24 can be connected and disconnected without the use of additional tooling. Both the plug 14 and the housing 26 are electrically and thermally insulated to allow a user to connect the lamp 10 by hand.
It will be appreciated that the foregoing is merely exemplary of the lamp and end cap/housing of the present invention. The skilled reader will understand that modifications can readily be made thereto without departing from the true scope of the present invention as defined by the claims.

Claims

Claims
1. A lamp housing for an ink curing apparatus, the housing comprising at least one housing connecting means configured to mate with at least one lamp connecting means extending from the end of a lamp to removably connect the lamp end to a power supply.
2. A lamp housing according to claim 1 wherein the at least one housing connecting means comprises a female connecting means and the at least one lamp connecting means comprises at least one protrusion.
3. A lamp housing according to claim 1 wherein the at least one housing connecting means comprises at least one protrusion and the at least one lamp connecting means comprises a female connecting means.
4. A UV lamp for an ink curing apparatus, the lamp comprising at least one protrusion adapted to mate with a corresponding female receiving means in a lamp housing to removably connect the lamp end to a power supply.
5. A UV lamp according to claim 4 wherein the female receiving means comprises a cylindrical recess.
6. A UV lamp according to claim 4 wherein the at least one protrusion comprises a hollow cylinder.
7. A UV lamp according to claim 4 or claim 5 wherein the or each female receiving means is made of a PTFE, Crastin, or another insulating material.
8. A UV lamp according to claim 4 or claim 6 wherein the or each hollow protrusion is made of a PTFE, Crastin, or another insulating material .
9. A lamp housing substantially as hereinbefore described or referred to in Figure 1.
PCT/GB2011/000362 2010-03-15 2011-03-15 Uv lamp WO2011114098A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1004255.4 2010-03-15
GB1004255A GB2478717A (en) 2010-03-15 2010-03-15 Lamp housing for ink curing apparatus

Publications (1)

Publication Number Publication Date
WO2011114098A1 true WO2011114098A1 (en) 2011-09-22

Family

ID=42261573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/000362 WO2011114098A1 (en) 2010-03-15 2011-03-15 Uv lamp

Country Status (2)

Country Link
GB (1) GB2478717A (en)
WO (1) WO2011114098A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014006376A1 (en) * 2012-07-02 2014-01-09 Gew (Ec) Limited Ink curing apparatus with lamp housing and movable locking member

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201411699D0 (en) 2014-07-01 2014-08-13 Gew Ec Ltd Ink curing apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1505501A (en) * 1975-10-03 1978-03-30 Thorpe F Ltd Lampholder unit
GB1600629A (en) * 1978-05-26 1981-10-21 Park Royal Porcelain Co Ltd Lampholders
DE19955979A1 (en) * 1999-11-20 2001-05-23 Ist Metz Gmbh Connector for rod-shaped mercury discharge lamp has contact pins enclosed in insulated covering, and mounting fitting with contacts in insulating body
US7097508B1 (en) * 2005-09-12 2006-08-29 Sun-Lite Sockets Industry Inc. Compact fluorescent lampholder
WO2009063195A1 (en) * 2007-11-13 2009-05-22 Gew (Ec) Limited Uv lamp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211605A (en) * 1938-09-08 1940-08-13 Gen Electric Mounting means for light sources
US6905230B2 (en) * 2003-08-18 2005-06-14 Nordson Corporation UV lamp retainer system
WO2005088677A2 (en) * 2004-03-04 2005-09-22 Koninklijke Philips Electronics N.V. Fluorescent lamp and method for manufacturing the same
DE102004047376A1 (en) * 2004-09-29 2006-04-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dielectric barrier discharge lamp with pluggable electrodes
DE102005031160B4 (en) * 2005-07-04 2013-11-28 Koenig & Bauer Aktiengesellschaft Drying device for a printing press
CN201277510Y (en) * 2008-10-30 2009-07-22 安徽力宇电脑设备制造有限责任公司 UV lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1505501A (en) * 1975-10-03 1978-03-30 Thorpe F Ltd Lampholder unit
GB1600629A (en) * 1978-05-26 1981-10-21 Park Royal Porcelain Co Ltd Lampholders
DE19955979A1 (en) * 1999-11-20 2001-05-23 Ist Metz Gmbh Connector for rod-shaped mercury discharge lamp has contact pins enclosed in insulated covering, and mounting fitting with contacts in insulating body
US7097508B1 (en) * 2005-09-12 2006-08-29 Sun-Lite Sockets Industry Inc. Compact fluorescent lampholder
WO2009063195A1 (en) * 2007-11-13 2009-05-22 Gew (Ec) Limited Uv lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014006376A1 (en) * 2012-07-02 2014-01-09 Gew (Ec) Limited Ink curing apparatus with lamp housing and movable locking member
US9050831B2 (en) 2012-07-02 2015-06-09 Aberystwyth University Ink curing apparatus with lamp housing and movable locking member

Also Published As

Publication number Publication date
GB201004255D0 (en) 2010-04-28
GB2478717A (en) 2011-09-21

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