CN2854311Y

CN2854311Y - LED bulb

Info

Publication number: CN2854311Y
Application number: CNU2005201328679U
Authority: CN
Inventors: 李大明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-16
Filing date: 2005-11-16
Publication date: 2007-01-03
Anticipated expiration: 2015-11-16

Abstract

The utility model relates to a LED bulb, which comprises a LED device, a DC boosted circuit board (2) and a bulb holder (8). One end of bulb holder connects with power source. In addition, above-mentioned components can be divided into two parts at least, each of which is detachable and attachable. Moreover, it adopts split-type structure design and above components can be respectively arranged to facilitate upgrading and conform to current demand for energy saving and environmental protection.

Description

A kind of light emitting diode bulb

Technical field

The utility model relates to a kind of bulb, particularly relates to a kind of small-sized light emitting diode bulb that is used for flashlight or gift etc.

Background technology

The flashlight of general family expenses is based on 3V and 4.5V, adopted mainly be low inflation formula osram lamp as light source, the general life-span of these bulbs is no more than 10 hours.Often use the farmer of flashlight, the people who is engaged in the person of working at night or likes outdoor activities for some, often change the bulb, not single not value-for-money does not more conform with environmental friendly principle.Though have some to use the flashlight of light emitting diodes to occur in market in recent years, but because price is expensive, and battery life has only 2-4 hour, neither value-for-money does not conform with environmental protection yet, so not as popular as traditional flashlight.The life-span of light emitting diode is more much longer than tengsten lamp, is being no more than under the specified condition of work, and the life-span can reach 200,000 hours.Because the technology of light emitting diode is at a tremendous pace, the brightness of light emitting diode constantly promotes.Most of flashlight that adopts LED to make light source owing to be built-in, all cannot be changed, if want brighter flashlight in the future, just need buy one new.The light emitting diode bulb that is designed for the flashlight special use is to acquire a certain degree of difficulty.If use large-power light-emitting diodes, increasing apparatus needs heat radiation, and large-power light-emitting diodes itself also needs heat radiation, large-power light-emitting diodes needs special lens and just can make the flashlight purposes still more, but brightness ratio uses the flashlight of a plurality of low-power LEDs to want high, and price is also higher certainly.If use a plurality of light emitting diodes, how to put into flashlight and remove to replace tengsten lamp, this needs some special designs.

Summary of the invention

For overcoming the defective of prior art, the technical problems to be solved in the utility model provides that a kind of volume is little, brightness is high, upgradeable light emitting diode bulb.

For achieving the above object, the technical scheme that the utility model is taked is: a kind of light emitting diode bulb, this bulb comprises LED lighting device, DC voltage booster circuit plate and lamp holder, one end of lamp holder is a power connector end, described LED lighting device, DC voltage booster circuit plate and lamp holder are divided into two parts at least, detachable connection between each part.

The beneficial effect that the relative prior art of the utility model reaches is: the utility model is owing to adopt the split-type structural design, and LED lighting device, DC voltage booster circuit plate and lamp holder can separated from each otherly be provided with, and convenient upgrading meets current saving, environmental protection requirement.

Description of drawings

Fig. 1 is that the utility model is used to the circuit diagram that uses LED quantity few;

Fig. 2 is that the utility model is used to use LED quantity circuit diagram how;

Fig. 3 is the structure cutaway view of the employing LED lamp of the utility model first embodiment;

Fig. 4 is the structure cutaway view of the employing LED lamp of the utility model second embodiment;

Fig. 5 is the structure cutaway view of the employing large-power light-emitting diodes of the utility model the 3rd embodiment;

Fig. 6 is the structure cutaway view of the employing large-power light-emitting diodes of the utility model the 4th embodiment;

Fig. 7 is the structure cutaway view of the employing large-power light-emitting diodes of the utility model the 5th embodiment;

Fig. 8 is the circuit diagram that the utility model adopts the LM2621 stepup transformer;

Fig. 9 is the circuit diagram that the utility model adopts the LM3578A stepup transformer;

Figure 10 is the circuit diagram that the utility model adopts the MC34063A stepup transformer;

Figure 11 is another circuit diagram that the utility model adopts the LM2621 stepup transformer;

The specific embodiment

Describe the specific embodiment of the present utility model in detail below with reference to accompanying drawing.

Fig. 1 is that the utility model is used to the circuit diagram that uses LED quantity few, D1 to DN represents LED among the figure, obtain sampling voltage at resistance R S two ends and adjust output voltage, reach the purpose of constant current voltage stabilizing, owing to be low voltage application, the quantity of general LED be 6 or below, decide on the properties of integrated circuit that boosts that is adopted.

Fig. 2 is that the utility model is used to use LED quantity structure chart how, and the output termination mirror shadow symmetrical expression constant-current circuit of DC booster among the figure, stepup transformer obtain sampling voltage and adjust output voltage at resistance R S two ends, reach the purpose of constant current voltage stabilizing.Assembly 1# is to assembly M# among the figure, except the 1# assembly many RS resistance, other used assembly is identical, assembly 1# is to adopt the triode with high electric current amplification characteristic to assembly M#, so the transistor collector electric current of each assembly can be regarded as identical.Among the figure N the highest be 4, but the most suitable with 3.4 or abovely will decide on the properties of integrated circuit that boosts that is adopted.

First embodiment

Fig. 3 is the structure cutaway view of the employing LED lamp of the utility model first embodiment.This structure mainly is divided into two parts: 1, the LED lamp connects metal and inserts, and 2, socket connects metallic lamp holder.First comprises glue shell 3, LED lamp and promotion circuit board 1 thereof are arranged in the glue shell 3, and the part of LED is stretched out outside the glue shell 3, the below of LED lamp and promotion circuit board 1 thereof is provided with DC voltage booster circuit plate 2, metal is inserted 4 and is electrically connected with DC voltage booster circuit, DC voltage booster circuit is connected with the promotion circuit of LED, and metal is inserted 4 belows of stretching out glue shell 3.In addition,, promote circuit and DC voltage booster circuit and can be arranged on the circuit board, that is, be electrically connected as long as guarantee two circuit if the space of first is enough big; Second portion comprises lamp holder 8, lamp holder 8 is being provided with and slotting 4 sockets that cooperate 5 of metal with slotting 4 ends that are connected of metal, be provided with power connector end 9 at the other end, socket 5 is connected with circuit board 6, circuit board 6 is for fixed socket and some auxiliary lines is set, and makes things convenient for welding lead etc. and is provided with, and also can adopt other fixture of socket, be not limited to circuit board, adopting circuit board 6 is a kind of optimal way.The outer rim that circuit board 6 stretches out lamp holder 8 is surrounded by ferrule 7.During installation, earlier the lamp socket of flashlight is turned on, lamp holder is loaded onto first-class lamp socket.Then reflector is partly turned on, metal is inserted on the socket of lamp holder, first-class again reflector.The utility model is only applicable to the openable flashlight of reflector, and the flashlight of Chu Shouing has eighty per cant can open reflector approximately on the market.

Second embodiment

As shown in Figure 4, be similar to first embodiment, the structure of this embodiment also mainly is divided into two parts: 1, the LED lamp connects metal and inserts, and 2, socket connects metallic lamp holder.First comprises glue shell 3, and LED lamp and promote circuit board 1 and be arranged in the glue shell 3, and the part that LED is used to throw light on stretches out outside the glue shell 3, metal are inserted 4 and be electrically connected with the promotion circuit of LED, and metal is inserted 4 belows of stretching out glue shell 3; Second portion comprises lamp holder 8, lamp holder 8 is being provided with and slotting 4 sockets that cooperate 5 of metal with slotting 4 ends that are connected of metal, be provided with power connector end 9 at the other end, one end of lamp holder 8 also is provided with the DC voltage booster circuit plate 2 of LED lamp, DC voltage booster circuit in socket 5 and the lamp holder and the line electricity on the circuit board 6 are connected, the outer rim that circuit board 6 stretches out lamp holder 8 is surrounded by ferrule 7, circuit board 6 is for fixed socket and some auxiliary lines is set, and convenient the cooperation installs other circuit board and can weld circuit etc. and be provided with.Also can adopt other fixture of socket, be not limited to circuit board, adopting circuit board 6 is a kind of optimal way.

This kind structure is the design than environmental protection, promoting circuit board and DC voltage booster circuit plate is not fitted together, owing to IC design can constantly promote efficient because of the science and technology improvement, the brightness of LED also constantly promotes because of the improvement of technology and manufacturing process, only need change efficient or the brightness that wherein part just can promote flashlight with the person.Event will promote circuit board and DC voltage booster circuit plate branch is arranged.This embodiment adopts the tripod metal to insert and three sockets, when the circuit among employing Fig. 1, also can use the bipod metal to insert and two sockets.

Fig. 5, Fig. 6 and Fig. 7 are the designs that the utility model adopts large-power light-emitting diodes.

The 3rd embodiment

As shown in Figure 5, the structure of this embodiment is a two-piece design, and it comprises: 1, the lamp holder of

lens

10,2, band LED.Second portion is provided with great power LED 11 at the end that lamp holder 8 links to each other with lens 10, be provided with power connector end 9 at its other end, it is outer to stretch into lens 10 that great power LED 11 stretches out lamp holder 8, great power LED 11 belows are radiator 13, as the foregoing description, one end of lamp holder 8 is provided with circuit board 6, and the outer rim that circuit board 6 stretches out lamp holder 8 is surrounded by ferrule 7, lamp holder 8 this end be circuit board 6 below be provided with DC voltage booster circuit plate 2.The DC voltage booster circuit in LED11 and the lamp holder and the line electricity of circuit board 6 are connected.Circuit board 6 is for fixed heat sink 13 and some auxiliary lines is set, and conveniently other circuit board is installed and can be welded circuit etc. and is provided with.Also can adopt other fixture of radiator, be not limited to circuit board, adopting circuit board 6 is a kind of optimal way.

The structure of this embodiment is applicable to the flashlight manufacturer, is used to offer the upgrade version of user as existing gas-filled tungstenfilament lamp flashlight product, but the user must change lens with original flashlight transparent film or eyeglass.If will upgrade in the future, light emitting diode connects cap part need be changed, and lens can continue to use.

The 4th embodiment

As shown in Figure 6, the structure of this embodiment designs for three-member type, and it comprises: 1, lens, 2, high-powered LED lamp connects metal and insert, 3, socket connects metallic lamp holder.Wherein, second portion comprises the great power LED 11 that stretches out outside the glue shell 3, so that great power LED 11 stretches in the lens 10.Simultaneously, glue shell 3 is provided with metal at the opposite side relative with LED and inserts 4, also is provided with radiator 13 in the glue shell 3 and connects printed circuit as fin.Third part comprises lamp holder 8, lamp holder 8 is being provided with and slotting 4 sockets that cooperate 5 of metal with slotting 4 ends that are connected of metal, be provided with power connector end 9 at the other end, one end of lamp holder 8 also is provided with the DC voltage booster circuit plate 2 of LED lamp, DC voltage booster circuit in socket 5 and the lamp holder and the line electricity on the circuit board 6 are connected, the outer rim that circuit board 6 stretches out lamp holder 8 is surrounded by ferrule 7, circuit board 6 is for fixed socket and some auxiliary lines is set, and convenient the cooperation installs other circuit board and can weld circuit etc. and be provided with.Also can adopt other fixture of socket, be not limited to circuit board, adopting circuit board 6 is a kind of optimal way.

The upgrading of this kind three-piece construction is than the structure economics among Fig. 5, only need change second portion light emitting diode part during upgrading, be applicable to the flashlight manufacturer, as the user is provided the upgrade version as existing gas-filled tungstenfilament lamp flashlight product, the user must change lens with original flashlight transparent film or eyeglass.

The 5th embodiment

As shown in Figure 7, the structure of this embodiment is the popular design of two-piece type, first comprises glue shell 3, be provided with lens 10 in the upper part of glue shell 3, great power LED 11 stretches in the lens 10, the below of great power LED 11 is provided with radiator 13 and connects printed circuit as fin, metal is inserted 4 and is connected with radiator 13 and stretches out outside the glue shell 3, second portion comprises lamp holder 8, lamp holder 8 is being provided with and slotting 4 sockets that cooperate 5 of metal with slotting 4 ends that are connected of metal, be provided with power connector end 9 at the other end, one end of lamp holder 8 is provided with the DC voltage booster circuit plate 2 of LED lamp, DC voltage booster circuit in socket 5 and the lamp holder and the line electricity on the circuit board 6 are connected, and the outer rim that circuit board 6 stretches out lamp holder 8 is surrounded by ferrule 7, and circuit board 6 is for fixed socket and some auxiliary lines are set, but installing other circuit board and bonding wire road etc., convenience is provided with.Also can adopt other fixture of socket, be not limited to circuit board, adopting circuit board 6 is a kind of optimal way.

This kind structure can be used for the product of different flashlight producer, and the user does not need to change original flashlight sheet glass or film, can change whole lens during upgrading and connect entire portion, or the glue shell is opened, and changes light emitting diode and connects the radiator part.

Metal in the foregoing description is inserted and the pin number and the figure place of socket will be looked the characteristic of the large-power light-emitting diodes that is adopted and cooperating of the properties of integrated circuit that boosts, and considers to cooperate and followingly upgrade and decide.

Ferrule in the product design of the utility model the foregoing description can be the ferrule that adds, and the top that also can be metallic lamp holder is through punch forming, that is, ferrule itself is the part of lamp holder, and does not need the added metal hoop.

In addition, the glue shell in the foregoing description is not limited to glue material, can be referred to as shell.

Fig. 8, Fig. 9, Figure 11 adopt the LM2621 of National Semiconductor (National Semiconductor) and the circuit diagram of LM3578A stepup transformer.The related data of LM2621 and LM3578A can directly find at the website of National Semiconductor www.national.com.The operating voltage of LM2621 can be low to moderate 1.2V, and LM3578A can be low to moderate 2V.Figure 10 adopts the MC34063A stepup transformer of U.S. peace semiconductor company (ON Semiconductor), because minimum operating voltage is 3V, therefore only can be used for the LED bulb of 4.5V.MC34063A is more cheap integrated circuit package, and related data can directly find at the website http://onsemi.com of peace semiconductor company.

Circuit based on figure eight, use 9 10, white light LEDs about 000mcd is made light source, 2 pieces of C type Energizers (Energizer) alkaline battery is made the energy, with use one be equipped with forever (Eveready) model as the krypton filled lamp of KPR102 (2.4V0.7A) bubble (Krypton Bulb) as light source, 2 pieces of C type Energizers do one relatively.Measuring method is to use the illumination photometer that closes CIE (International Commission on Illumination) photopic (visibility function) standard, under the controling environment who isolates with extraneous light, makes illumination photometry for 1 foot at the distance light source.Use the utility model, the illumination in the zero-time is 1645Lux, and illumination 50% required time that drops is 13 hours, and the illumination of using krypton filled lamp to steep in the zero-time is 1140Lux, and the illumination 50% required time that dropped is 50 minutes.So aspect brightness and power saving, the utility model has very outstanding effect.The utility model and open market actual arrival use 9 LED to make light source, 3 pieces of AAA type Energizer alkaline batteries are done the flashlight comparison of the energy, and the illumination in the zero-time is 1030Lux, and the illumination 50% required time that dropped is 2 hours, under the contrast, the utility model has very outstanding effect.Based on figure 11, use 1W power white light LEDs to make light source, 2 pieces of C type Energizer alkaline batteries are made the energy and are made light source with using one piece of 1W power white light LEDs, and the flashlight of 3 pieces of AAA type strength alkaline batteries is made comparisons.The illumination of the present utility model 50% required time that dropped is 4 hours 7 minutes, and the 75% required time that dropped is 4 hours 20 minutes, and the required time of 50% illumination is 45 minutes and 1W power white light LEDs flashlight drops, and the 75% required time that dropped is 3 hours 15 minutes.The utility model has long bright time and power saving.

Claims

1, a kind of light emitting diode bulb, this bulb comprises LED lighting device, DC voltage booster circuit plate (2) and lamp holder (8), one end of lamp holder (8) is a power connector end, it is characterized in that, described LED lighting device, DC voltage booster circuit plate (2) and lamp holder (8) are divided into two parts at least, detachable connection between each part.

2, light emitting diode bulb according to claim 1 is characterized in that, described LED lighting device comprises low-power LED and promotes circuit (1).

3, light emitting diode bulb according to claim 2 is characterized in that, described first comprises LED lighting device and the DC voltage booster circuit plate (2) that is arranged in the shell (3), and described second portion comprises lamp holder (8); The end that described LED is used to throw light on stretches out outside the shell (3), inserts (4) with the metal that is electrically connected of circuit in the shell (3) and stretches out outside the shell (3), and socket (5) supporting with metal slotting (4) is arranged on lamp holder (8) other end relative with power connector end.

4, light emitting diode bulb according to claim 2 is characterized in that, described first comprises the LED lighting device that is arranged in the shell (3), and described second portion comprises lamp holder (8) and is arranged on the interior DC voltage booster circuit plate (2) of lamp holder; The end that described LED is used to throw light on stretches out outside the shell (3), stretch out outside the shell (3) with the metal that is electrically connected of circuit slotting (4) in the shell (3), insert (4) supporting socket (5) with metal and be arranged on lamp holder (8) other end relative, and be electrically connected with the interior circuit of lamp holder (8) with power connector end.

5, light emitting diode bulb according to claim 1 is characterized in that, described LED lighting device comprises lens (10), great power LED (11) and radiator (13).

6, light emitting diode bulb according to claim 5 is characterized in that, described first comprises lens (10), and described second portion comprises lamp holder (8) and is arranged on the interior DC voltage booster circuit plate (2) of lamp holder; Described radiator (13) is arranged on lamp holder (8) other end relative with power connector end with great power LED (11), and the end that LED (11) is used to throw light on stretches in the lens (10).

7, light emitting diode bulb according to claim 5, it is characterized in that, described first comprises lens (10), described second portion comprises great power LED (11) and the radiator (13) that is arranged in the shell (3), this bulb also comprises third part, and this third part comprises lamp holder (8) and is arranged on the interior DC voltage booster circuit plate (2) of lamp holder; Insert (4) with the metal that is electrically connected of circuit in the shell (3) and stretch out outside the shell (3), insert (4) supporting socket (5) with metal and be arranged on lamp holder (8) other end relative, and be electrically connected with the interior circuit of lamp holder (8) with power connector end.

8, light emitting diode bulb according to claim 5 is characterized in that, described first comprises the LED lighting device that is arranged in the shell (3), and described second portion comprises lamp holder (8) and is arranged on the interior DC voltage booster circuit plate (2) of lamp holder; Insert (4) with the metal that is electrically connected of circuit in the shell (3) and stretch out outside the shell (3), insert (4) supporting socket (5) with metal and be arranged on lamp holder (8) other end relative, and be electrically connected with the interior circuit of lamp holder (8) with power connector end.