CN101737664A - Safe light emitting diode (LED) lighting tube - Google Patents

Safe light emitting diode (LED) lighting tube Download PDF

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Publication number
CN101737664A
CN101737664A CN201010107069A CN201010107069A CN101737664A CN 101737664 A CN101737664 A CN 101737664A CN 201010107069 A CN201010107069 A CN 201010107069A CN 201010107069 A CN201010107069 A CN 201010107069A CN 101737664 A CN101737664 A CN 101737664A
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CN
China
Prior art keywords
led
circuit board
light emitting
emitting diode
lighting tube
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
Application number
CN201010107069A
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Chinese (zh)
Other versions
CN101737664B (en
Inventor
夏中和
沈培生
林青峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lightel Technologies (shenzhen) Inc
Original Assignee
Lightel Technologies (shenzhen) Inc
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.)
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Publication date
Application filed by Lightel Technologies (shenzhen) Inc filed Critical Lightel Technologies (shenzhen) Inc
Priority to CN201010107069.6A priority Critical patent/CN101737664B/en
Publication of CN101737664A publication Critical patent/CN101737664A/en
Application granted granted Critical
Publication of CN101737664B publication Critical patent/CN101737664B/en
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Classifications

    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • H01R33/945—Holders with built-in electrical component
    • H01R33/96—Holders with built-in electrical component with switch operated by engagement or disengagement of coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

The invention discloses a safe light emitting diode (LED) lighting tube, comprising a radiating shell, a lampshade, end covers, a circuit board, an LED bulb, two groups of contact pins and a driving part. The end covers are positioned at two ends of the radiating shell and the lampshade, the circuit board is fixedly connected with the radiating shell, the LED bulb is positioned on the circuit board, the two groups of contact pins are arranged on the two end covers, the driving part is respectively connected with the circuit board, and a protective switch is respectively arranged on a circuit between the driving part and the two groups of contact pins. By adopting the structure, whether a user inserts the contact pins into the high-voltage end of a lampholder or not, the commercial power supply is electrically connected with the driving part only if the two groups of contact pins are all installed in the lampholder and then the protective switch is started, therefore, potential danger existing in the installation process can be thoroughly eliminated.

Description

Safe light emitting diode (LED) lighting tube
Technical field
The present invention relates to LED (light emitting diode; Light Emitting Diode) technical field of lamps more particularly, relates to the safe light emitting diode (LED) lighting tube that a kind of user of preventing gets shocked in installation process.
Background technology
In recent years, the LED light fixture because, energy-conservation, more environmental protection, efficient height, characteristics such as volume is little, the life-span is longer and receive much concern, the LED light fixture is replacing traditional incandescent lamp and fluorescent tube and as the main flow illuminations.Meanwhile, along with the development of clean energy resource efficiency techniques and the enhancing day by day of people's environmental protection concept, increasing family and mechanism all will adopt the LED light fixture to throw light on.Under this trend, guarantee being perfectly safe of LED light fixture, potential safety problem such as prevent to get an electric shock, just seeming is even more important.
Please refer to Fig. 1 and Fig. 2, two circuit boards 150 that LED fluorescent tube 100 of the prior art comprises heat-dissipating casing 110, lampshade (not shown), is positioned at the end cap 120 at described heat-dissipating casing 110 and lampshade two ends, be electrically connected by electrical connector 145, be positioned at the LED lamp pearl 170 on described two circuit boards 150, the driving 160 that is positioned at the contact pin 180 on the described end cap 120 and is connected with two circuit boards 150 respectively.Wherein, drive 160 by being placed in the heat-dissipating casing 110 behind the insulating paper parcel, the defective of this structure is, causes heat radiation not smooth easily.In addition, in the prior art, the connection of above-mentioned each parts is to realize by the mode that glue bonds, under the long term high temperature condition, and glue ease of connection aged deterioration, thereby the security incident of causing.
What is more important when the consumer installs above-mentioned LED fluorescent tube, also exists bigger potential safety hazard.For example, when on the conventional fluorescent lamp socket, the LED fluorescent tube being installed, when if the consumer inserts the high-tension end of lamp socket with the contact pin shown in the figure (being commonly called as live wire), though do not constitute the loop at the driving 160 and the neutral conductor (being commonly called as ground wire), wherein do not have electric current to pass through, but wherein had certain electromotive force, if when the consumer touches the contact pin of the other end at this moment, will get shocked, thereby security incident takes place.
All there is above-mentioned potential safety hazard in all on the market LED fluorescent tubes, and do not take corresponding safety measure to be prevented.Whether the consumer is shocked by electricity, and depends on whether contact pin is inserted into the high-tension end of lamp socket earlier.Therefore, the consumer exist 50% by shock hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of safe light emitting diode (LED) lighting tube, and it can prevent that the user from getting shocked in installation process.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of safe light emitting diode (LED) lighting tube is provided, comprise heat-dissipating casing, lampshade, be positioned at the end cap at described heat-dissipating casing and lampshade two ends, with the fixedly connected circuit board of described heat-dissipating casing, be positioned at LED lamp pearl on the described circuit board, be positioned at two groups of contact pins on described two end caps and the drive part that is connected with circuit board respectively, on the circuit between described drive part and the described two groups of contact pins, be respectively equipped with Protection switch.
Like this, no matter whether the user inserts the high-tension end of lamp socket earlier with contact pin, only after two groups of contact pins all are installed in the lamp socket, restart Protection switch, just can make to form between city's power supply and the drive part to be electrically connected, therefore thoroughly eliminate the potential danger in the user installation process.
Description of drawings
Fig. 1 is that the LED fluorescent tube is removed schematic perspective view behind the lampshade in the prior art;
Fig. 2 is the circuit theory schematic diagram of Fig. 1;
Fig. 3 is the schematic perspective view after a preferred embodiment of the present invention is removed lampshade;
Fig. 4 is a circuit theory schematic diagram embodiment illustrated in fig. 3;
Fig. 5 is the schematic perspective view of the end cap in embodiment illustrated in fig. 3;
Fig. 6 is the middle schematic perspective view that drives shell embodiment illustrated in fig. 3;
Fig. 7 is a schematic side view of removing behind the end cap embodiment illustrated in fig. 3.
The specific embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please refer to Fig. 3 and Fig. 4, be a preferred embodiment of the present invention, this safe light emitting diode (LED) lighting tube comprises heat-dissipating casing 201, lampshade 202 (please refer to Fig. 7), is positioned at the end cap 260 at described heat-dissipating casing 201 and lampshade two ends, with the fixedly connected circuit board 205 of described heat-dissipating casing 201, be positioned at LED lamp pearl 214 on the described circuit board 205, be positioned at two groups of contact pins 250 on described two end caps 260 and the drive part 400 that is connected with circuit board 205 respectively, on the circuit between described drive part 400 and the described two groups of contact pins 250, be respectively equipped with Protection switch 220.Like this, no matter whether the user inserts the high-tension end of lamp socket earlier with contact pin 250, only after two groups of contact pins 250 all are installed in the lamp socket, restart Protection switch 220, just can make to form between city's power supply and the drive part 400 to be electrically connected, therefore thoroughly eliminate the potential danger in the user installation process.
Below above-mentioned each part is further described in detail respectively.
Please in conjunction with reference Fig. 7, the cross section of described shell 201 is semicircular in shape roughly, and can adopt heat conductivility good metal such as aluminium, copper or alloy material to make.One side of its corresponding LED fluorescent tube exiting surface forms in order to install and fix the mounting platform of circuit board 205.The position of mounting platform corresponding circuits plate 205 is provided with some screws for screw lock.Thereby solved in the prior art, adopted the defective of the easy ageing failure that connects between glue realization circuit board and the shell.Extend location division in described mounting platform both sides, in order to realize and being connected of Transparent lamp shade with mounting groove.In order to enlarge area of dissipation, describedly form a plurality of strip projections in a side opposite with LED fluorescent tube exiting surface.In addition, on the length direction of described shell 201, be provided with the through hole that connects described shell 201, be convenient to circulation of air and dispel the heat.
In the present embodiment, described Protection switch 220 can be realized break-make by the mode of mechanical key control or remote control.When adopting mechanical key control, can adopt mechanical key of the prior art.When adopting the sensing mode, can adopt infrared sensor, electromagnetism sensor, photo switches, photo sensors etc.
Please in conjunction with reference Fig. 6, described drive part 400 comprises the driving shell 401 of fixedlying connected by screw with described heat-dissipating casing 201, the driving that is positioned at described driving shell 401 etc.A flange arrangement 411 is extended at the two ends of described driving shell respectively, in order to fixedly connected with described shell 201.In the present embodiment, described driving shell 401 is semi-cylindrical and has the spatial accommodation 412 consistent with cavity direction in the described heat-dissipating casing.In addition, form heat dissipation channel 404 between described driving shell flange arrangement 411 1 sides and the described heat-dissipating casing 201.
Please in conjunction with reference Fig. 5, described end cap 260 comprises end cap shell 261, is positioned at the end cap circuit board (not shown) of described end cap shell 261, the jack that end cap shell 261 is provided with the Protection switch installing hole and plugs for described contact pin 250.In the present embodiment, described contact pin 250 is fixedlyed connected with described end cap circuit board with Protection switch 220.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. safe light emitting diode (LED) lighting tube, comprise heat-dissipating casing, lampshade, be positioned at the end cap at described heat-dissipating casing and lampshade two ends, with the fixedly connected circuit board of described heat-dissipating casing, be positioned at LED lamp pearl on the described circuit board, be positioned at two groups of contact pins on described two end caps and the drive part that is connected with circuit board respectively, it is characterized in that: on the circuit between described drive part and the described two groups of contact pins, be respectively equipped with Protection switch.
2. safe light emitting diode (LED) lighting tube as claimed in claim 1 is characterized in that: described Protection switch is realized break-make by the mode of mechanical key control or sensing.
3. safe light emitting diode (LED) lighting tube as claimed in claim 1 is characterized in that: form mounting platform on the described heat-dissipating casing, and fixedly connected with described circuit board by screw.
4. safe light emitting diode (LED) lighting tube as claimed in claim 1 is characterized in that: described drive part comprises the driving shell of fixedlying connected by screw with described heat-dissipating casing, forms heat dissipation channel between described driving shell and the described heat-dissipating casing.
5. safe light emitting diode (LED) lighting tube as claimed in claim 4 is characterized in that: described driving shell be semi-cylindrical and have with described heat-dissipating casing in the consistent spatial accommodation of cavity direction.
6. safe light emitting diode (LED) lighting tube as claimed in claim 1 is characterized in that: described end cap comprises end cap shell, is positioned at the end cap circuit board of described end cap shell, and described contact pin is fixedlyed connected with described end cap circuit board with Protection switch.
CN201010107069.6A 2010-02-03 2010-02-03 Safe light emitting diode (LED) lighting tube Active CN101737664B (en)

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CN102109118A (en) * 2011-01-26 2011-06-29 常州家加爱光电科技有限公司 Clamping groove type anti-glare uniform-temperature heat radiation type LED fluorescent lamp
WO2012025626A1 (en) * 2010-08-26 2012-03-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Luminaires, especially luminaires to be operated in lamp holders for fluorescent lamps
WO2012004708A3 (en) * 2010-07-05 2012-03-08 Koninklijke Philips Electronics N.V. Led lamp
WO2012058556A3 (en) * 2010-10-29 2012-06-21 Ilumisys, Inc. Mechanisms for reducing risk of shock during installation of light tube
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WO2017012514A1 (en) * 2015-07-20 2017-01-26 Jiaxing Super Lighting Electric Appliance Co., Ltd Led tube lamp
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US9923325B2 (en) 2013-01-24 2018-03-20 Philips Lighting Holding B.V. End cap for a tubular light source
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WO2017012514A1 (en) * 2015-07-20 2017-01-26 Jiaxing Super Lighting Electric Appliance Co., Ltd Led tube lamp
WO2017214890A1 (en) * 2016-06-15 2017-12-21 深圳市聚作照明股份有限公司 Safe led tube
CN109429410A (en) * 2017-09-05 2019-03-05 安高制品有限公司 LED electronic driver with creepage protection function
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