CN208457631U

CN208457631U - A kind of LED light bar and LED daylight lamp

Info

Publication number: CN208457631U
Application number: CN201820927520.0U
Authority: CN
Inventors: 高春瑞; 郑剑飞; 郑文财
Original assignee: Xiamen Dacol Photoelectronics Technology Co Ltd
Current assignee: Xiamen Dacol Photoelectronics Technology Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-02-01
Anticipated expiration: 2028-06-15

Abstract

The utility model relates to a kind of LED light bar and LED daylight lamps, wherein LED light bar is made of metal including one, the heat-radiating substrate of strip and several LED lamp beads being fixedly mounted on heat-radiating substrate, "convex" shaped groove on the heat-radiating substrate, it is extended on two in groove wing plates from two upper side of groove and is all fixedly installed with circuit board, multiple contact electrodes toward groove floor are provided on the circuit board, the LED lamp bead includes package substrate, LED chip and packaging plastic, the LED lamp bead is embedded in the groove of heat-radiating substrate, and the contact electrode for being individually secured to the circuit board on two wing plates is connected with the positive and negative electrode on package substrate respectively, to solve the problems, such as that existing LED light bar heat dissipation performance is poor.

Description

A kind of LED light bar and LED daylight lamp

Technical field

The utility model relates to lighting area, it is specifically related to a kind of LED light bar and LED daylight lamp.

Background technique

With the development of electronic semi-conductor's technology, more and more occasions that illuminate replace traditional lighting using LED lamp Lamps and lanterns will use lamp bar as its luminescent device, such as LED daylight lamp, panel light lamps and lanterns in some lamps and lanterns.

Existing LED light bar be all by LED lamp bead soldering on a printed circuit board, it is thermally conductive due to printed circuit board itself Performance is simultaneously bad, therefore after LED light bar is mounted on lamps and lanterns, and the heat that LED lamp bead generates can be accumulated on a printed circuit board, Need to guarantee by the power of other heat dissipation designs or reduction lamps and lanterns the normal work of LED light bar, to guarantee lamps and lanterns Service life.

Utility model content

The utility model is intended to provide a kind of LED light bar and LED daylight lamp, to solve existing LED light bar heat dissipation performance The problem of difference.

Concrete scheme is as follows:

A kind of LED light bar is made of metal including one, the heat-radiating substrate of strip and is fixedly mounted on heat-radiating substrate Several LED lamp beads, there is the "convex" shaped groove extended along its length, from groove two on the heat-radiating substrate top surface Upper side extends on two in groove wing plates and is all fixedly installed with circuit board, is provided on the circuit board multiple toward recessed The contact electrode of groove bottom, the LED lamp bead include package substrate, LED chip and packaging plastic, and the package substrate is by insulation material Material is made and has an encapsulating face, and on the encapsulating face, the packaging plastic is coated on encapsulating face and will the LED chip die bond LED chip covers, and also has the positive and negative electrode being electrically connected with LED chip on the encapsulating face, and the LED lamp bead is embedded in heat dissipation base In the groove of plate, and the contact electrode for the circuit board being individually secured on two wing plates respectively with the positive negative electricity on package substrate Pole connects.

Further, the contact electrode is Elastic Contact electrode.

Further, the contact electrode is wavy metal clips, which is fixed on circuit board, The other end extends toward groove floor.

Further, the contact electrode includes contact and metal spring made of metal, the metal elastic Spring one end is fixed on circuit board, and the other end extends toward groove floor, and the contact is fixed on the free end of metal spring.

Further, the contact is tubular contact, and the free end of the metal spring is fixed to the interior of the tubular contact On bottom wall.

Further, the package substrate is ceramic packaging substrate.

The utility model additionally provides a kind of LED daylight lamp, including lamp tube body, is mounted on the lamp tube body both ends and uses In the LED light bar for connecting the plug of power supply and being mounted in lamp tube body, wherein the LED light bar is any one above-mentioned LED light bar.

LED light bar provided by the utility model has the advantage that provided by the utility model compared with prior art The substrate of LED lamp bead in LED light bar is directly contacted with heat-radiating substrate made of metal, and the bad printing of heating conduction is omitted Circuit board can greatly improve the heat-sinking capability of the LED light bar.

Detailed description of the invention

Fig. 1 shows the schematic diagram of LED light bar.

Fig. 2 shows the cross-sectional views of LED lamp bead.

Fig. 3 shows the cross-sectional view of LED light bar.

Specific embodiment

To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.

Now in conjunction with the drawings and specific embodiments, the present invention will be further described.

As shown in Figure 1-Figure 3, the utility model provides a kind of LED light bar, the LED light bar include one be made of metal, The heat-radiating substrate 10 of strip and several LED lamp beads 20 being fixedly mounted on heat-radiating substrate, wherein in order to guarantee to radiate Thermal diffusivity, processing cost and the material cost of substrate, the heat-radiating substrate that the utility model uses is preferably aluminium, but is not limited In this, it is also possible to other materials, such as copper, aluminium alloy etc..Have on 10 top surface of heat-radiating substrate and extends along its length "convex" shaped groove 100, extended on two in groove wing plates 102 from 100 liang of upper sides of groove and be all fixedly installed with electricity Road plate 30 is provided with multiple contact electrodes 300 toward 100 bottom surface of groove on the circuit board 30；The LED lamp bead 20 includes Package substrate 200, LED chip 202 and packaging plastic 204, the package substrate 200 are made of insulating material and have an encapsulation Face, wherein package substrate 200 is preferentially made of the good ceramic material of heating conduction, and formed on ceramics route (such as with Electrocondution slurry is sintered), on the encapsulating face, the packaging plastic 204 is coated on encapsulating face 202 die bond of LED chip And cover LED chip 202, wherein die bond and the processing step of point packaging plastic 204 are the prior art, are not repeated to go to live in the household of one's in-laws on getting married herein It states.Also there is the positive and negative electrode 206a and 206b being electrically connected with LED chip, the LED lamp bead 20, which is embedded, to be dissipated on the encapsulating face In the groove 100 of hot substrate, and the contact electrode 300 for the circuit board 30 being individually secured on two wing plates 102 respectively with envelope The positive and negative electrode 206a and 206b filled on substrate is connected, so that the LED lamp bead 20 being embedded in groove 100 passes through electricity Road plate forms the circuit that series, parallel or series and parallel combine, the width of further groove 100 and the width of package substrate 200 It is roughly the same or bigger, package substrate 200 is smoothly pushed into groove 100, and 100 can also be to encapsulation Substrate 200 plays the role of positioning.

It is and existing as shown in figure 3, the package substrate 200 due to LED lamp bead 20 is directly contacted with heat-radiating substrate 10 LED light bar compares, and printed circuit board, i.e., the restriction of the low printed circuit board of no thermal conductivity, so that LED lamp bead 20 is omitted The heat generated when work can preferably be conducted to heat-radiating substrate, can effectively and rapidly be conducted heat.

In the present embodiment, above-mentioned contact electrode 300 is preferably Elastic Contact electrode, in order to the peace of LED lamp bead 20 It is filled with and LED lamp bead 20 can also be pressed in groove by Elastic Contact electrode, play fixed effect.

Wherein, one of scheme of Elastic Contact electrode is using wavy metal clips as elastic connecting electric shock Pole, the metal clips one end are fixed on circuit board, and the other end extends toward groove floor, when LED lamp bead 20 is pushed into groove Afterwards, the positive and negative electrode 206a and 206b on the free end and package substrate of metal clips are connected, and realize electrical connection, and gold Belonging to elastic slice can also be pressed in LED lamp bead 20 in groove 100, play fixed effect.

Another scheme of Elastic Contact electrode be using metal spring and contact made of metal as Elastic Contact electrode, described metal spring one end are fixed on circuit board 30, and the other end extends toward 100 bottom surface of groove, the touching Head is fixed on the free end of metal spring, and the positive and negative electrode 206a and 206b on package substrate 200 are connect with contact, so It is electrically connected afterwards by spring with the printed circuit realization on circuit board.As the preferred embodiment of the program, the contact is preferred For tubular contact, the free end of the metal spring is fixed in the inner bottom wall of the tubular contact.

The utility model additionally provides a kind of LED daylight lamp, including lamp tube body, is mounted on the lamp tube body both ends and uses In the LED light bar for connecting the plug of power supply and being mounted in lamp tube body, wherein the LED light bar is recited above LED light bar.

Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details On the utility model can be made a variety of changes, be the protection scope of the utility model.

Claims

1. a kind of LED light bar, it is characterised in that: be made of metal, the heat-radiating substrate of strip and be fixedly mounted on including one Several LED lamp beads on heat-radiating substrate have on the heat-radiating substrate top surface "convex" shaped extended along its length recessed Slot extends on two in groove wing plates from two upper side of groove and is all fixedly installed with circuit board, is provided on the circuit board Multiple contact electrodes toward groove floor, the LED lamp bead include package substrate, LED chip and packaging plastic, the encapsulation Substrate is made of insulating material and has an encapsulating face, and on the encapsulating face, the packaging plastic is coated on the LED chip die bond It is covered on encapsulating face and by LED chip, also there is the positive and negative electrode being electrically connected with LED chip, the LED lamp bead on the encapsulating face The contact electrode for the circuit board for being embedded in the groove of heat-radiating substrate, and being individually secured on two wing plates respectively with encapsulation base Positive and negative electrode on plate connects.

2. LED light bar according to claim 1, it is characterised in that: the contact electrode is Elastic Contact electrode.

3. LED light bar according to claim 2, it is characterised in that: the contact electrode is wavy metal clips, should Metal clips one end is fixed on circuit board, and the other end extends toward groove floor.

4. LED light bar according to claim 2, it is characterised in that: the contact electrode includes made of metal Contact and metal spring, described metal spring one end are fixed on circuit board, and the other end extends toward groove floor, the contact It is fixed on the free end of metal spring.

5. LED light bar according to claim 4, it is characterised in that: the contact is tubular contact, the metal spring Free end is fixed in the inner bottom wall of the tubular contact.

6. LED light bar according to claim 1, it is characterised in that: the package substrate is ceramic packaging substrate.

7. a kind of LED daylight lamp, including lamp tube body, be mounted on the lamp tube body both ends for connect power supply plug and The LED light bar being mounted in lamp tube body, it is characterised in that: the LED light bar is any LED light of claim 1-6 Item.