CN102980054B - Light-emitting diode (LED) lamp bulb - Google Patents

Light-emitting diode (LED) lamp bulb Download PDF

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Publication number
CN102980054B
CN102980054B CN201110265288.1A CN201110265288A CN102980054B CN 102980054 B CN102980054 B CN 102980054B CN 201110265288 A CN201110265288 A CN 201110265288A CN 102980054 B CN102980054 B CN 102980054B
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CN
China
Prior art keywords
light source
flexible pcb
led light
pcb plate
led
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Expired - Fee Related
Application number
CN201110265288.1A
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Chinese (zh)
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CN102980054A (en
Inventor
王元成
王丽娜
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.)
Ningbo Aimei Kesi Lighting Electrical Appliances Co., Ltd.
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王丽娜
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Priority to CN201110265288.1A priority Critical patent/CN102980054B/en
Publication of CN102980054A publication Critical patent/CN102980054A/en
Application granted granted Critical
Publication of CN102980054B publication Critical patent/CN102980054B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to the field of illuminating lighting fixtures, and provides a light-emitting diode (LED) lamp bulb. The LED lamp bulb comprises a lamp cap, a lamp shell, a constant current power supply, at least two guide lines, a lampshade and an LED light source. The LED light source between the two guide lines is located in an inner cavity of the lampshade; the LED light source comprises a chip, fluorescent powder and a flexible printed circuit board (PCB); the flexible PCB is made of circuits printed on a polyimide or polyester film substrate and is in transparent or semitransparent shape, light transmittance of the flexible PCB is at least 40 %, and temperature resistance range of the flexible PCB is between minus 45 DEG C and 300 DEG C; and the thickness of the LED light source is within 1.5 millimeters. The LED lamp bulb has the advantages of being ingenious in structure, high in light using efficiency, and low in production cost.

Description

A kind of LED bulb
Technical field
The present invention relates to field of illuminating lamps, relate in particular to the bulb of a kind of LED as light source.
Background technology
Energy shortage is the hot issue of the world today, and in illuminating industry, LED bulb is because multiple advantages such as its efficient, energy-saving and environmental protection, long-lives, is that to replace energy consumption high, the first-selection of short conventional incandescent (tengsten lamp) of life-span.Incandescent lamp (tengsten lamp) comprising: filament, filament bracing frame, Transparent lamp shade, blanketing gas and lamp holder form, and filament bracing frame filament supports, is filled with inert gas in transparent bulb case, and require sealing, and by filament, heating produces light, and its efficiency is low, complex process, its benefit is that 360 degree are luminous.Being similar in the market incandescent lamp approaches the luminous LED bulb of 360 degree and also has, its structure comprises lamp holder, lamp housing and LED light source, the support of the shape such as cylindrical or square is set on lamp housing, multiple LED light sources are around being arranged on the lateral wall of support, except LED light source is all installed is realized 360 of LED lamp and spend luminous near other five of lamp body one side, support is generally to adopt the materials such as aluminium base, and the deficiency of its existence is that the utilization rate of light is low, and structure is single and production cost is high.
Summary of the invention
The problem that utilization rate is low, production cost is high that the object of the invention is the light in order to overcome existing LED bulb existence, provides a kind of novel structure, and the utilization rate of light is high, the LED bulb that production cost is low.
In order to realize foregoing invention object, the present invention has adopted following technical scheme:
A kind of LED bulb, comprise lamp holder, lamp housing, constant-current supply, lampshade and LED light source, lamp housing is arranged on lamp holder, lampshade is arranged on lamp housing, also comprise the wire for supporting LED light source, wire connects lamp holder by constant-current supply, and described wire is at least 2, in the inner chamber of the LED light source between 2 wires in lampshade; Described LED light source comprises chip, fluorescent material and flexible PCB plate, and fluorescent material is coated on chip, and chip is fixed on flexible PCB plate, and 2 wires are welded on respectively on flexible PCB plate; Described flexible PCB plate is that printed circuit is made on polyimides or mylar substrate, and flexible PCB plate is transparent or semitransparent shape, and its light transmittance is at least 40%, and temperature resistant range is between-45 DEG C-300 DEG C; Described LED light source thickness is within 1.5mm.
As preferably, described 2 wires are fixed on the circuit of flexible PCB plate and at weld covering bonding agent by tin welding, wire also works to support LED light source except being communicated with power supply, and therefore above-mentioned fixed form can be firmly fixing by LED light source, increases the service life.
As preferably, the bending of described flexible PCB plate is curved and can not knuckle, and bending is curved is convenient to make various shapes, improves luminous efficiency, after knuckle flexible PCB and on chip and connect the just easy fracture damage of gold thread of chip and PCB, can not use.
As preferably, described chip is bonded on flexible PCB plate by the one in insulating cement, elargol or tin cream, and chip electrode connects the circuit on flexible PCB plate by gold thread, and the service time that is connected firmly is long.Described insulating cement is epoxy resin or silica gel.
As preferably, the top and bottom of described chip or surrounding scribble respectively fluorescent material, and fluorescent material regulates the color of the light that chip sends, and all luminous i.e. 360 degree are luminous to realize chip.
As preferably, described flexible PCB plate is in-line, polylith chip is set on it, be that LED light source is in-line, be convenient to 2 supports that wire is firm, the cooperation of LED light source and wire simultaneously can be made the face shaping that is similar to incandescent lamp, and moulding is more attractive in appearance, on every block of flexible PCB plate, polylith chip is set and contributes to improve luminous efficiency.
As preferably, described LED light source is multiple, and the power that each LED light source is is no more than 1W, owing to having adopted flexible PCB plate, does not therefore re-use the thermal components such as aluminium base support, and therefore operating power can not be too high, otherwise heat radiation existing problems.
As preferably, described LED light source is the center in lampshade inner chamber.
As preferably, described LED bulb also comprises the support that supports LED light source, and support is fixed on lamp housing, more when LED light source quantity, supports in addition LED light source stability better when especially there is multiple LED light source common wire by support.
By a kind of LED bulb of technique scheme design, have the following advantages: 1.LED light source adopts the flexible PCB plate of transparent or semitransparent shape, light transmittance is at least 40%, chip 360 is spent the luminous flexible PCB plate that all can pass, light transmission and can not being blocked arbitrarily, the utilization rate of light is more than doubled; 2. wire support LED light source makes it in the inner chamber in lampshade, obviously be different from current some LED light sources and be arranged on the not structure in the inner chamber in lampshade of lamp housing bottom surface, improved luminous efficiency, and the structure of wire support LED light source is similar to the face shaping of incandescent lamp, moulding is more attractive in appearance; 3. because the utilization rate of light is high, use low power chip just to have very high brightness, also just can not produce large heat, do not need to use traditional radiator structure such as aluminium base or support, production cost reduces greatly; 4. flexible PCB plate is that printed circuit is made on polyimides or mylar substrate, and production cost is low, and heatproof is effective, especially after long-time use, also can not affect luminous efficiency by turning black and changing color; 5. the temperature resistant range of flexible PCB plate is between-45 DEG C-300 DEG C, the operating temperature interval of chip on cooperated with LED light source, and the flexible PCB plate that does not reach above-mentioned heatproof effect is not suitable for using; 6.LED light source thickness, within 1.5mm, is convenient to LED light source bending or is linked to be various shapes by wire, and diameter is too slightly difficult to realize and the large weight of diameter is just heavily unfavorable for wire support.In sum, the advantage of this LED bulb is novel structure, and the utilization rate of light is high, and production cost is low.
Brief description of the drawings
Fig. 1: the structural representation of the embodiment of the present invention 1.
Fig. 2: the structural representation of the embodiment of the present invention 2.
Fig. 3: the structural representation of LED light source of the present invention.
The local structure for amplifying schematic diagram in side of Fig. 4: Fig. 3.
Detailed description of the invention
Be described further below in conjunction with accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4 the present invention.
Embodiment 1
A kind of LED bulb as shown in Figure 1, Figure 3 and Figure 4, comprise lamp holder 8,9, at least 2 wires 2 of lamp housing, constant-current supply, lampshade 11 and multiple LED light source 10, lamp housing 9 is arranged on lamp holder 8, lampshade 11 is arranged on lamp housing 9, wire 2 connects lamp holder 8 by constant-current supply, and wire 2 works to support LED light source 10 for the connection of LED light source 10 and lamp holder 8 simultaneously.In the inner chamber of LED light source 10 between 2 wires 2 in lampshade 11, the position of LED light source 10 the bests is the centers in lampshade 11 inner chambers, and luminous efficiency is high.
LED light source is made up of chip 4, insulating cement 3, fluorescent material 7, gold thread 6, wire 2, bonding agent 5 and flexible PCB plate 1.Fluorescent material 7 is coated on chip 4, and specifically the top and bottom of chip 4 or its surrounding are coated with respectively fluorescent material 4, and fluorescent material 4 regulates the color of the light that chip 4 sends, and all luminous i.e. 360 degree are luminous to realize chip 4.Chip 4 is fixed on flexible PCB plate 1 and by the bonding encapsulation of insulating cement 3, and insulating cement 3 is epoxide-resin glues.The electrode of chip 4 connects the circuit on flexible PCB plate 1 by gold thread 6.Flexible PCB plate 1 is transparent or semitransparent shape, light transmittance is at least 40%, flexible PCB plate 1 is that printed circuit is made on polyimides or mylar substrate, production cost is low, and heatproof is effective, especially after long-time use, flexible PCB plate 1 also can not affect luminous efficiency by turning black and changing color.The temperature resistant range of flexible PCB plate 1, between-45 DEG C-300 DEG C, coordinates the operating temperature interval of chip 4, and the flexible PCB plate 1 that does not reach above-mentioned heatproof effect is not suitable for using.The power that each LED light source is is no more than 1W, owing to having adopted flexible PCB plate 1, does not therefore re-use the thermal components such as aluminium base support, and therefore operating power can not be too high, otherwise heat radiation existing problems.On every block of flexible PCB plate 1, rule arranges polylith chip 4, and luminous efficiency is higher.2 wires 2 are fixed on the circuit of flexible PCB plate and at weld covering bonding agent 5 by tin welding.LED light source 10 thickness, within 1.5mm, are convenient to LED light source 10 bendings or are linked to be various shapes by wire 2, and diameter is too slightly difficult to realize bending and the large weight of diameter is just heavily unfavorable for wire support.
It is that LED light source 10 is in-line that flexible PCB plate 1 is in-line, is convenient to 2 supports that wire 2 is firm, and polylith chip 4 is set on flexible PCB plate 1, contributes to improve luminous efficiency.Two adjacent LEDs light source 10 connects and composes V-arrangement by wire 2, identical with the face shaping of traditional incandescent lamp.The operating voltage of chip 4 is between 1.5V-240V, the most universal easy to use.
Embodiment 2
A kind of LED bulb as shown in Figure 2, Figure 3 and Figure 4, except flexible PCB plate 1 shape and LED light source 10 spread geometries, the quantity of LED light source 10 can be single or multiple, other structure is identical with embodiment 1.
1 bending of flexible PCB plate is curved, be that LED light source 10 bendings are curved, be convenient to make various shapes, improve luminous efficiency, structure LED light source 10 usage quantities of lining up V-arrangement with respect to embodiment 1 two adjacent LEDs light source 10 can reduce, can not use by knuckle but flexible PCB plate 1 is can bending curved, after knuckle on flexible PCB 1 chip 4 just easily perk cause gold thread 6 fractures also easily fracture of flexible PCB plate 1 simultaneously.
Above-mentioned 2 embodiment are only the preferred embodiments of this patent, for example LED bulb can also comprise the support 12 that supports LED light source 10, support 12 is fixed on lamp housing 9, more when LED light source 10 quantity, when especially there is multiple LED light source 10 common wire 2, support in addition LED light source 10 stability by support 12 better; Chip 4 can be that a row can be also many rows of longitudinal arrangement; Chip 4 also can be bonded on flexible PCB plate 1 by the one in elargol or tin, and insulating cement 3 also can adopt silica gel; The transparent material of flexible PCB plate 1 can be organic or inorganic material.

Claims (10)

1. a LED bulb, comprise lamp holder, lamp housing, constant-current supply, lampshade and LED light source, lamp housing is arranged on lamp holder, lampshade is arranged on lamp housing, described LED light source comprises chip, fluorescent material and flexible PCB plate, characterized by further comprising the wire for supporting LED light source, and wire connects lamp holder by constant-current supply, described wire is at least 2, in the inner chamber of the LED light source between 2 wires in lampshade; Fluorescent material is coated on chip, and chip is fixed on flexible PCB plate, and 2 wires are welded on respectively on flexible PCB plate; Described flexible PCB plate is that printed circuit is made on polyimides or mylar substrate, and flexible PCB plate is transparent or semitransparent shape, and its light transmittance is at least 40%, and temperature resistant range is between-45 DEG C-300 DEG C; Described LED light source thickness is within 1.5mm.
2. a kind of LED bulb according to claim 1, it is characterized in that described 2 wires by tin welding on the circuit of flexible PCB plate and weld cover bonding agent fix.
3. a kind of LED bulb according to claim 1, is characterized in that the bending of described flexible PCB plate is curved and can not knuckle.
4. a kind of LED bulb according to claim 1, is characterized in that described chip is bonded on flexible PCB plate by the one in insulating cement, elargol or tin cream, and chip electrode connects the circuit on flexible PCB plate by gold thread.
5. a kind of LED bulb according to claim 4, is characterized in that described insulating cement is epoxy resin or silica gel.
6. according to a kind of LED bulb described in claim 1 or 2 or 3, it is characterized in that the top and bottom of described chip or surrounding scribble respectively fluorescent material.
7. according to a kind of LED bulb described in claim 1 or 2 or 3, it is characterized in that described flexible PCB plate is in-line, arranges polylith chip on it.
8. a kind of LED bulb according to claim 7, is characterized in that described LED light source is multiple, and the power that each LED light source is is no more than 1W.
9. a kind of LED bulb according to claim 1, is characterized in that described LED light source is the center in lampshade inner chamber.
10. a kind of LED bulb according to claim 1, characterized by further comprising the support that supports LED light source, and support is fixed on lamp housing.
CN201110265288.1A 2011-09-07 2011-09-07 Light-emitting diode (LED) lamp bulb Expired - Fee Related CN102980054B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110265288.1A CN102980054B (en) 2011-09-07 2011-09-07 Light-emitting diode (LED) lamp bulb

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Application Number Priority Date Filing Date Title
CN201110265288.1A CN102980054B (en) 2011-09-07 2011-09-07 Light-emitting diode (LED) lamp bulb

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CN102980054B true CN102980054B (en) 2014-10-22

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EP3290773A1 (en) * 2016-09-05 2018-03-07 Double Good Co. Led light bulb and fabrication method thereof

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CN111219611A (en) * 2013-07-18 2020-06-02 杭州恒星高虹光电科技股份有限公司 Full-angle luminous bulb
CN103822114B (en) * 2013-09-30 2016-05-18 亚浦耳照明股份有限公司 A kind of LED bulb lamp and preparation method thereof
CN103542308A (en) * 2013-11-08 2014-01-29 江苏华英光宝科技股份有限公司 All-angle bendable LED (Light Emitting Diode) filament strip and antique LED bulb comprising same
CN104279529B (en) * 2014-09-24 2017-12-15 惠州市英吉尔光电科技有限公司 A kind of LED compact power supplies
CN104989982A (en) * 2015-07-15 2015-10-21 东莞佰鸿电子有限公司 Full-period-luminosity LED bulb
CN106482003A (en) * 2015-09-01 2017-03-08 Bgt材料有限公司 The method of the LED bulb of manufacture tool Graphene filament
CN106958749A (en) * 2016-01-08 2017-07-18 Bgt材料有限公司 The construction of light emitting diode filament bulb
DE102017112642A1 (en) * 2017-06-08 2018-12-13 Osram Opto Semiconductors Gmbh LED FILAMENT

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EP3290773A1 (en) * 2016-09-05 2018-03-07 Double Good Co. Led light bulb and fabrication method thereof

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Owner name: WANG LINA

Free format text: FORMER OWNER: WANG YUANCHENG

Effective date: 20140922

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Effective date of registration: 20140922

Address after: 322200, No. 88, Bi Bi Avenue, Pujiang Economic Development Zone, Jinhua, Zhejiang

Applicant after: Wang Lina

Address before: 322200, No. 88, Bi Bi Avenue, Pujiang Economic Development Zone, Jinhua, Zhejiang

Applicant before: Wang Yuancheng

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TR01 Transfer of patent right

Effective date of registration: 20180330

Address after: 315000 room No. 134, east section of the North Ring Road, Ring North Road, Jiangbei District, Ningbo, Zhejiang Province, A-111

Patentee after: Ningbo Aimei Kesi Lighting Electrical Appliances Co., Ltd.

Address before: 322200, No. 88, Bi Bi Avenue, Pujiang Economic Development Zone, Jinhua, Zhejiang

Patentee before: Wang Lina

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20200907