CN201555070U

CN201555070U - LED lamp

Info

Publication number: CN201555070U
Application number: CN2009202383101U
Authority: CN
Inventors: 陈炳武
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-02
Filing date: 2009-11-02
Publication date: 2010-08-18
Anticipated expiration: 2019-11-02

Abstract

The utility model relates to an LED lamp and relates to the technical field of the semiconductor illumination. The LED lamp comprises an LED illuminating element, a power supply module and an outer shell, wherein positive and negative pins of a plurality of LEDs are welded on two sides of a double-side copper foil circuit board strip so as to form a basic illuminating unit component of the lamp. A plurality of basic illuminating unit components are connected with a power supply module after being connected through a lead and then are placed in the lamp shell. Compared with the lamps of the prior art, the conducting and radiating properties of the lamp are greatly promoted due to the multiply increased area of the copper foil. The junction temperature of the LED chip can be prevented from being over-high. The service life is shortened because the LED works under high temperature for a long time and the illuminating efficiency is decreased but the utility model solves the problems and has magnificent reality sense and social economical benefit to promote the reliability and the service life of the LED lamp.

Description

A kind of LED light fixture

Technical field

The utility model relates to lighting device, is specifically related to the semiconductor LED lighting technical field.

Background technology

Development along with the semiconductor lighting technology, various LED light fixtures arise at the historic moment, street lamp that the low-power LED of the direct insertion encapsulation of a kind of usefulness two pin is assembled into and Tunnel Lamp or projecting lamp come out, its identical characteristics are hundreds of nearly to be inserted to several thousand LED be welded on the circuit board, the both positive and negative polarity pin of LED is cut short at the solder joint place, the monoblock circuit board is encapsulated between transparent glass and the lamp housing, and its difference only is the profile difference of lamp housing.The disadvantage of the LED light fixture of this kind structure is that radiating treatment is bad, reason is the restriction that is subjected to the light fixture size, can only intensive layout LED, cause the circuit board Copper Foil area of the heat radiation of relying very little, add that the air-flow give-and-take conditions of light fixture are poor, the heat that makes LED produce can not in time derive and dissipate, gathering of heat makes the junction temperature of led chip raise fast, long-term work will cause the chip light decay to quicken under hot conditions, and useful working life shortens.

Summary of the invention

Goal of the invention

The utility model proposes a kind of improved structure design to the LED light fixture of forms such as above-mentioned street lamp, Tunnel Lamp or projecting lamp, and purpose is to improve the heat conduction and heat radiation performance of light fixture, and then improves the working life of light fixture and strengthen its economic results in society.

The technical solution of the utility model is: the both positive and negative polarity pin of the LED light-emitting component of some quantity is pasted the two sides that is welded in a two-sided copper foil circuit board respectively, constitute the basic luminous units assembly of light fixture, not only circuit board need not boring, and need not to cut short the both positive and negative polarity pin, be placed in some such basic luminous units assemblies in the housing of light fixture with different arrangements, can produce the slightly different light fixture of multiple structure again, for example embodiment one, and some parallel entirely arrangements of basic luminous units assembly are placed in the lamp housing; Embodiment two, and some basic luminous units assemblies are placed in the lamp housing by the arc radial arrangement; Embodiment three, some basic luminous units combination of components are installed in constitute a light emitting module in the light-passing plastic box body, and several such modules are entirely arranged and are installed on the one flat plate, insert in the lamp housing again; Embodiment four, and example three described modules are installed by both sides module inclination certain angle, and center module is straight to be installed on the plate of one two Edge Bend and to insert in the lamp housing.In the various embodiments described above, connecting the back by the lead connection in series-parallel between the basic luminous units assembly is electrically connected with power module, constitute the whole circuit for lamp of light fixture, lamp housing then is designed to difformity according to the applicable situation of light fixture, can be the metal shell of making by extrusion process or extrusion process or Sheet Metal Forming Technology, or the plastic casing made of injection moulding.In the foregoing description three, the example four, the power supply design has two kinds again, and a kind of is the shared power module of each light emitting module, and another kind is that each light emitting module respectively has independently power module, can bear more embodiment so again.

Technique effect

Technical solutions of the utility model are LED to be pasted be welded on the two-sided copper foil circuit board, need not boring and cut pin, not only save man-hour and improve work efficiency, the more important thing is that Copper Foil area on the circuit board becomes several times than existing scheme even can accomplish increase more than ten times, this promptly be into several times increase cooling surface area, the both positive and negative polarity pin is not cut short whole subsides and is welded on the Copper Foil, the heat that helps the chip generation is transmitted on the Copper Foil fast, its resultant effect is exactly the heat conduction and heat radiation performance that has improved light fixture than existing scheme greatly, ensure and prolong the working life of LED effectively, improved the reliability of light fixture.

Description of drawings

Fig. 1, Fig. 2 are the front view and the side views of the basic luminous units assembly of the utility model LED light fixture;

Fig. 3 is the schematic cross-sectional view of the utility model LED light fixture embodiment one;

Fig. 4 is the schematic cross-sectional view of the utility model LED light fixture embodiment two;

Fig. 5 is the schematic cross-sectional view of the utility model LED light fixture embodiment three;

Fig. 6 is the schematic cross-sectional view of the utility model LED light fixture embodiment four;

Fig. 7 is the schematic cross-sectional view of the utility model LED light fixture embodiment five.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 1 is the front view of the basic luminous units assembly of the utility model LED light fixture, and Fig. 2 is the right side view of Fig. 1.The both positive and negative polarity pin of LED element 1 pastes the two sides that is welded in two-sided copper foil circuit lath 2 respectively among the figure, the quantity of welding LED element determines arbitrarily that according to the power of light fixture and size and arrangement of components designing requirement the length of circuit lath and width design also adapt with it on every circuit board.

Referring to Fig. 3, it is the lamp post structure schematic diagram of the utility model LED light fixture embodiment one, the aluminium alloy extrusions of lamp housing 4 for adopting extrusion process to make among the figure, power module 5 is installed on the lamp housing 4, reaching tens of LEDs elements 1 is welded on the two-sided copper foil circuit lath 2, constitute the basic luminous units assembly of this street lamp, the two ends of the basic luminous units assembly that some (shown in the figure 25) is so respectively parallel fastening entirely on two location card articles 3, article two, location card article 3 is fixed on the lamp housing 4, each bar basic luminous units assembly connects the back according to circuit design with lead series connection or connection in series-parallel and is connected with the output circuit of power module 5, the light transmission glass plate 6 of packing into, the two ends of lamp housing section bar promptly constitute the street lamp of the utility model LED light fixture with the end cap sealing.

Referring to Fig. 4, the basic structure of this embodiment two and embodiment one are basic identical, and difference is that each bar basic luminous units assembly is to be placed in the lamp outer casing by the arc radial arrangement, so is arranged with and is beneficial to the uniformity of improving road illumination.Other explanations see also the explanation of Fig. 3, repeat no more.

Referring to Fig. 5, it is the lamp post structure schematic diagram of the utility model LED light fixture embodiment three, the aluminium alloy extrusions that lamp housing 4 is still made for extrusion process among the figure, power module 5 is installed on the lamp housing 4, the both positive and negative polarity pin of some LEDs elements 1 pastes respectively on the two sides Copper Foil that is welded in two-sided copper foil circuit lath 2, constitute a basic luminous units assembly, some parallel entirely being placed in the printing opacity box body 7 of such basic luminous units assembly, there is lead to connect between each bar unit block, constitute a light emitting module, several light emitting module stay aligned are installed on the one flat plate 8, there is lead to be electrically connected between the module, according to being connected with the outlet line of a common source module 5 after different circuit design serial or parallel connections or the connection in series-parallel; Also has another kind of power supply design, be exactly that each light emitting module all has lead with independently power module connection separately, She Ji advantage is if certain power module breaks down like this, only be that this light emitting module does not work, can not cause whole lamp not work, design can improve the reliability of whole lamp like this, and it is easy to maintenance, as long as change this bad light emitting module, this kind power supply design is not with illustrating, because be very intelligible scheme.The flat board 8 that light emitting module is installed is fixed in the lamp housing, and the two ends of lamp housing promptly constitute the LED street lamp of present embodiment with the end cap sealing.

Referring to Fig. 6, it is the lamp post structure schematic diagram of the utility model LED light fixture embodiment four, it only changes on the basis of embodiment three slightly, promptly just angle of 8 liang of Edge Bends of flat board is become plate 8b shape, make the light emitting module inclination certain angle that is installed in the plate both sides, the purpose of doing like this is that the light that the light emitting module on plate both sides is sent can shine from the farther place of light pole, improves uniformity of illuminance on the entire road road surface with this.Other explanations see also the explanation of Fig. 5, repeat no more.

Referring to Fig. 7, it is the Tunnel Lamp of the utility model LED light fixture embodiment five or the structural representation of Projecting Lamp, lamp housing 4b can adopt the metal shell that extrusion process or extrusion process or Sheet Metal Forming Technology are made among the figure, the also plastic casing that can make with Shooting Technique, except lamp housing shaped design difference, the lamp inner structure is identical with Fig. 5 or street lamp shown in Figure 6 in fact.Fig. 7 has shown another kind of power supply design schematic diagram, be that each light emitting module all has lead with independently power module 5b connection separately, all light emitting module is fixed on dull and stereotyped 8, is installed among the lamp housing 4b again, promptly constitutes the Tunnel Lamp or the Projecting Lamp LED light fixture of present embodiment.Obviously, this type of light fixture still can design according to Fig. 3 or Fig. 4 or Fig. 5 or structure shown in Figure 6, only changes that the profile of lamp housing gets final product, to adapt to the different occasions of installing and using.

Claims

1. LED light fixture, comprise LED light-emitting component, power module and lamp housing, it is characterized in that: the both positive and negative polarity pin of the LED light-emitting component (1) of some quantity pastes the two sides that is welded in two-sided copper foil circuit lath (2) respectively, constitute the basic luminous units assembly of light fixture, some such basic luminous units assemblies are connected with power module after by lead series connection or connection in series-parallel, and parallel arrangement entirely of each bar basic luminous units assembly or arc radial arrangement are placed in the lamp housing.

2. LED light fixture, comprise the LED light-emitting component, power module and lamp housing, it is characterized in that: the both positive and negative polarity pin of the LED light-emitting component (1) of some quantity pastes the two sides that is welded in two-sided copper foil circuit lath (2) respectively, constitute the basic luminous units assembly of light fixture, some such basic luminous units assembly is installed in the printing opacity box body (7), there is lead to connect between each basic luminous units assembly, it constitutes a light emitting module, several light emitting modules are arranged in and are installed in the lamp housing again on the plate (8), each light emitting module has the same common source module of lead to connect, and perhaps each light emitting module all has lead with independently power module connection separately.

3. a kind of LED light fixture according to claim 1 is characterized in that: fastening is on two location card articles (3) respectively at the two ends of each bar basic luminous units assembly, and the location card article is installed on the lamp housing.

4. a kind of LED light fixture according to claim 2, it is characterized in that: several light emitting modules or entirely be installed on the one flat plate (8), perhaps be installed on the plate (8b) of one two Edge Bend, make the straight installation of centre module and both sides module inclination certain angle install.

5. LED light fixture according to claim 1 and 2 is characterized in that: lamp housing is the metal shell of being made by extrusion process or extrusion process or Sheet Metal Forming Technology, or the plastic casing made of injection moulding.