KR20070006230A - An electrodeless lamp with spirally guide-railed core - Google Patents

An electrodeless lamp with spirally guide-railed core Download PDF

Info

Publication number
KR20070006230A
KR20070006230A KR1020050061372A KR20050061372A KR20070006230A KR 20070006230 A KR20070006230 A KR 20070006230A KR 1020050061372 A KR1020050061372 A KR 1020050061372A KR 20050061372 A KR20050061372 A KR 20050061372A KR 20070006230 A KR20070006230 A KR 20070006230A
Authority
KR
South Korea
Prior art keywords
core
lamp
electrodeless fluorescent
lamp vessel
fluorescent lamp
Prior art date
Application number
KR1020050061372A
Other languages
Korean (ko)
Other versions
KR100711496B1 (en
Inventor
김병현
김회근
이종찬
Original Assignee
금호전기주식회사
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 금호전기주식회사 filed Critical 금호전기주식회사
Priority to KR1020050061372A priority Critical patent/KR100711496B1/en
Publication of KR20070006230A publication Critical patent/KR20070006230A/en
Application granted granted Critical
Publication of KR100711496B1 publication Critical patent/KR100711496B1/en

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type
    • H01F17/0006Printed inductances
    • H01F17/0033Printed inductances with the coil helically wound around a magnetic core
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306Fastening or mounting coils or windings on core, casing or other support
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/044Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by a separate microwave unit
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/048Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using an excitation coil

Abstract

An electrodeless fluorescent lamp having a spirally guide-railed core is provided to simplify an assembling process thereof by forming an electric coil on an outer circumference of the spirally guide-railed core. A discharge tube includes a flare part. The flare part is extended from one end thereof to an inside of a lamp receptacle, and is combined with the lamp receptacle in order to be connected with a cylindrical part. The lamp receptacle includes an ionization filler having a rare gas. The lamp receptacle further includes a cylindrical end and is sealed by using a vacuum compression method. A heat conducting element is formed within a core(21) and is extended to the outside of the lamp receptacle within the discharge tube. A power coupler is fixed to the lamp receptacle. The core is formed of a soft magnetic material. A plurality of spiral guiding grooves(41) are formed at a predetermined interval along an outer circumference of the core.

Description

An electrodeless lamp with spirally guide-railed core

1 is a schematic cross-sectional view of an electrodeless fluorescent lamp equipped with a tube for coil winding;

Figure 2 is a schematic view showing an embodiment of a core structure having a spiral guide groove according to the present invention,

Figure 3 is a schematic view showing another embodiment of the core structure having a spiral guide groove according to the present invention,

4 is a schematic cross-sectional view of an electrodeless fluorescent lamp having a core according to the present invention.

The present invention relates to an electrodeless fluorescent lamp having a tube functioning as an electric coil winding fixture, and more particularly to a discharge tube including a flare portion extending from one end into a lamp vessel and fused to the lamp vessel and connected to a cylindrical portion. Has; A lamp vessel containing an ionizable filler including a rare gas and having a cylindrical end and sealed in a vacuum compression manner; And a heat conduction element mounted in the discharge tube and extending out of the lamp vessel and penetrating the core to the flange, the electric coil around the core, and a core made of a soft magnetic material. Power combiner; An electrodeless fluorescent lamp comprising: at least one spiral guide groove is formed on the outer peripheral surface of the core at a predetermined interval, the winding tube is removed, the electrodeless fluorescent lamp having a core formed with a spiral guide groove It is about.

Electrodeless fluorescent lamps are known from a number of sources, including European Patent No. 0 456 289-A1 and US Patent No. 5 006 752. Schematically, the discharge vessel in the known lamp extends substantially over the entire length of the lamp vessel. The coil is wound on the outer circumferential surface of the tube having an inner through portion (pipe portion), and the cores passing through the inner through portion are placed in an area located at the end of the discharge tube, thereby ensuring good power movement into the ionizable charge. do.

Conventionally known lamps consume a relatively high power of approximately 80 to 90 watts (W), and also generate heat during lamp operation, which prevents the core from reaching temperatures near or above the Curie point. Should be removed. This is because the magnetic permeability decreases at a temperature above the Curie point while the specific magnetic loss increases strongly. In order to eliminate the risk of excessive temperature rise of the core, the known lamp comprises a hollow pipe containing liquid as a heat conducting element. The liquid evaporates in a pipe region located within the core and the vapor condenses in the outer region of the lamp vessel. The heat of condensation is transferred to the surroundings by a flange. On the other hand, since a hollow pipe containing a liquid as a heat conduction element is expensive, it is a solid rod, and a lamp improved to a shape attached laterally to the inner surface of the core by an elastic material is known.

On the other hand, in any form of the thermally conductive element, the support for winding and fixing the coil is constituted by a tube, preferably a heat shrink tube. Specifically, the coil is formed on the outer surface of the tube surrounding the core by using a coil tape, and the coil is formed to be fixed. It has been noticed that it unnecessarily delays and leads to an increase in unnecessary manufacturing costs. That is, the present inventors have completed the present invention as a result of studying to solve the above problems through mechanical deformation of the core capable of fixing the electric coil. In addition, the coil winding is possible through the deformation of the core, it was confirmed that the lamp with the core according to the present invention has an advantageous effect in terms of even distribution of the plasma.

Accordingly, an object of the present invention is to provide an electrodeless fluorescent lamp having an improved plasma distribution ratio, formed by mounting an electric coil winding on a spiral guide groove of an outer circumferential surface of the core.

Another object of the present invention is to provide an electrodeless fluorescent lamp that simplifies the assembly process and brings improvement in working efficiency,

The final object of the present invention is to provide an electrodeless fluorescent lamp which can lower the manufacturing cost.

Hereinafter, an electrodeless fluorescent lamp in the present invention will be described with reference to the configuration of a known lamp.

1 is a schematic configuration diagram of a known lamp equipped with a winding tube. An electrodeless fluorescent lamp has a lamp vessel 1 having a cylindrical end 2 and sealed in a vacuum compression method. The lamp vessel is coated with a fluorescent powder (4) on the inner surface and contains an ionizable filler consisting of mercury and rare gas inside the lamp vessel. A discharge tube 5 comprising a flare portion 6 extending in the lamp vessel and fused to the lamp vessel and connected to the cylindrical portion 7 is fused to the lamp vessel at the container end 2.

The power combiner 20 is detachably fixed to the lamp vessel 1, the core 21 of the soft magnetic material in the discharge tube (5); A tube (30) penetrating around the core (21); An electric coil 22 wound around the outer surface of the tube and a thermally conductive element 23 in the core 21 are provided. The element extends outside the lamp vessel 1 and leads to a flange 24. The coil 22 is in the region of the discharge vessel 5 adjacent the flare portion 6, the element 23 being a solid rod. Or it may be a hollow pipe containing a liquid, the solid rod is laterally coupled to the core by an elastic material 25, for example silicone rubber. Packing with the elastic material provides good heat transfer from the core to the rod. The flange 24 has a surface narrowing towards the rod 23, and the flange 24 is made of copper and is integral with the rod. In addition, the flange 24 has hooks 28 so that the power coupler 20 is detachably fixed to the lamp vessel 1. Compared with the power coupler, the discharge tube 5 has an extended length. The rod has a flange made of copper, aluminum or brass, for example with a surface narrowing conically towards the rod.

However, the inventors pay attention to the fact that the tube 30 does not perform a function other than supporting the electric coil 22, and thus, the core structural deformation capable of performing a mechanical role to support the electric coil 22 may be performed. By the way, it was noted that the lamp assembly process can be simplified and the manufacturing cost can be lowered.

The present invention relates to an electrodeless fluorescent lamp with a tube 30 removed as a fixture supporting an electric coil. To this end, the core 21 in the present invention is characterized in that one or more spiral guide grooves are formed on the outer circumferential surface at predetermined intervals along the outer circumference, and more specifically, the depth of the guide groove is between the core outer diameter and the heat conduction element outer diameter. Characterized in that the range. On the other hand, the width between the guide groove itself up and down is characterized in that the width distance that the electric coil can be fixed substantially. Hereinafter, the core structure according to the present invention will be described in detail, but the same components as in the prior art are denoted by the same reference numerals.

2 and 3 schematically show embodiments of the core structure 21 according to the present invention. A plurality of guide grooves 41 are spirally formed along the outer circumferential path on the outer surface of the core 21, and each of the guide grooves has an outer diameter R2 of the core itself and a pipe outer diameter R1 into which the heat conductive element 23 is inserted and fixed. The thickness is formed within the range of. Each of the guide grooves may be formed in plural in the axial direction of the discharge tube 5, and the upper and lower widths of the guide grooves in the axial direction may substantially have a width capable of fixing the electric coil 22. The spiral guide groove thickness and width do not have to be the same, respectively, and the guide grooves are connected to each other and extend in a spiral shape, but may be spaced apart from each other.

4 illustrates an electrodeless fluorescent lamp equipped with a core 21 according to the present invention. Specifically, the electrodeless fluorescent lamp according to the present invention has a lamp vessel 1 having a cylindrical end 2 and sealed in a vacuum compression method. The lamp vessel includes an ionizable filler consisting of mercury and rare gases, such as a fluorescent powder 4 coated on the inner surface of the lamp vessel, for example a mixture of argon, neon, xenon or rare gases, or mercury. A discharge tube 5 comprising a flare portion extending within the lamp vessel and fused to the lamp vessel and connected to the cylindrical portion is fused to the lamp vessel at the lamp vessel end 2. The power combiner 20 is separably fixed to the lamp vessel 1, and is composed of a soft magnetic material in the discharge tube 5, and a core 21 having a plurality of spiral guide grooves 41 formed along an outer circumferential surface thereof. ; An electric coil 22 fixed in a guide groove formed on the outer circumferential surface of the core and a heat conductive element 23 in the core 21 are provided.

In the electrodeless lamp according to the above configuration, when a high frequency is applied to the electric coil, a magnetic field is generated around the coil, and the magnetic field passes through a discharge tube corresponding to the secondary circuit, and the secondary circuit is based on the principle of Faraday. An electromotive force is generated. Electrons are accelerated in the discharge tube by the generated electromotive force, and the plasma is generated, and the ultraviolet rays emitted from the plasma stimulate the phosphor coated inside the lamp vessel to emit visible light.

Therefore, since the electrodeless fluorescent lamp emits self-induced light, unlike the fluorescent lamp by electron emission from a conventional electrode, the electrodeless fluorescent lamp has a low loss of energy and a loss of energy, and the electric coil itself is formed on the outer peripheral surface of the core to assemble the process. It is possible to simplify, to reduce the manufacturing cost, and of course, it is possible to implement a very useful lamp that exhibits a uniform distribution of the plasma and is not structurally limited in the lamp manufacturing.

To those skilled in the art, the present invention is not limited to the above-described embodiments, and the present invention may be embodied in other forms without departing from the spirit of the invention. All design changes made within the technical scope equivalent to the claims are considered to be included within the scope of the present invention.

Claims (3)

  1. A cylindrically shaped end having an discharge tube 5 comprising a flare portion 6 extending into the lamp vessel 1 at one end and fused to the lamp vessel and connected to the cylindrical portion 7 and comprising a rare gas. (2) a lamp vessel (1) sealed by a vacuum compression method, a heat conduction element (23) in the core (21) extending out of the lamp vessel (1) in the discharge tube (5) and reaching a flange, and the core An electrodeless fluorescent lamp comprising a power coupler 20 fixed to the lamp vessel 1 in a detachable manner, including an electric coil 22 around the core and a core 21 of soft magnetic material, An electrodeless fluorescent lamp, characterized in that a plurality of spiral guide grooves (41) are formed at predetermined intervals along the outer circumference of the core (21).
  2. The electrodeless fluorescent lamp of claim 1, wherein a depth of the guide groove is in a range between a core outer diameter (R2) and a thermally conductive element outer diameter (R1).
  3. The electrodeless fluorescent lamp of claim 1, wherein a width between the upper and lower sides of the guide groove itself is substantially a width distance at which the electric coil can be fixed.
KR1020050061372A 2005-07-07 2005-07-07 An electrodeless lamp with spirally guide-railed core KR100711496B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020050061372A KR100711496B1 (en) 2005-07-07 2005-07-07 An electrodeless lamp with spirally guide-railed core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050061372A KR100711496B1 (en) 2005-07-07 2005-07-07 An electrodeless lamp with spirally guide-railed core

Publications (2)

Publication Number Publication Date
KR20070006230A true KR20070006230A (en) 2007-01-11
KR100711496B1 KR100711496B1 (en) 2007-04-24

Family

ID=37871518

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020050061372A KR100711496B1 (en) 2005-07-07 2005-07-07 An electrodeless lamp with spirally guide-railed core

Country Status (1)

Country Link
KR (1) KR100711496B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7997767B2 (en) * 2007-08-01 2011-08-16 Foxsemicon Integrated Technology, Inc. Anti-icing outdoor lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6555954B1 (en) * 2000-07-14 2003-04-29 Matsushita Electric Industrial Co., Ltd. Compact electrodeless fluorescent lamp with improved cooling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7997767B2 (en) * 2007-08-01 2011-08-16 Foxsemicon Integrated Technology, Inc. Anti-icing outdoor lamp

Also Published As

Publication number Publication date
KR100711496B1 (en) 2007-04-24

Similar Documents

Publication Publication Date Title
US9911589B2 (en) Induction RF fluorescent lamp with processor-based external dimmer load control
US10141179B2 (en) Fast start RF induction lamp with metallic structure
US9305765B2 (en) High frequency induction lighting
US4017764A (en) Electrodeless fluorescent lamp having a radio frequency gas discharge excited by a closed loop magnetic core
KR100356960B1 (en) High-brightness electrodeless low pressure light source and how to operate it
JP2807305B2 (en) Electrodeless low pressure discharge lamp
CA2108434C (en) Capacitively coupled rf fluorescent lamp with rf magnetic enhancement
US6081070A (en) High-frequency electrodeless fluorescent lamp
US4093893A (en) Short arc fluorescent lamp
US6768248B2 (en) Electrodeless lamp
KR900002446B1 (en) Inacrive gas discharge lamp device
US6979958B2 (en) High efficacy metal halide lamp with praseodymium and sodium halides in a configured chamber
US20140320008A1 (en) Processor-based fast start induction rf fluorescent lamp
JP4258380B2 (en) Electrodeless fluorescent lamp and its lighting device
JP4120585B2 (en) Electrodeless low-pressure lamp with many ferrite cores and induction coils
JP3196534B2 (en) Microwave discharge light source device
US4117378A (en) Reflective coating for external core electrodeless fluorescent lamp
DE69827580T2 (en) Electrodeless lamp with thermal bridge between transformer core and amalgam
US6288490B1 (en) Ferrite-free electrodeless fluorescent lamp
EP0528489B1 (en) Electrodeless discharge lamp
TW492046B (en) Electrodeless discharge lamp
US4180763A (en) High intensity discharge lamp geometries
EP0294004B1 (en) Electrodeless low pressure discharge lamp
EP0767485B1 (en) Electrodeless fluorescent lamp
JP5663587B2 (en) Light source

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee