CN201636576U - Led lamp - Google Patents

Abstract

The utility model discloses an LED lamp, which comprises: a base; a lampshade fixed on the base; and a plurality of LEDs accommodated in the lampshade. Wherein, the plurality of LEDs are welded on a foldable flexible PCB, and the flexible PCB has wiring connected to the plurality of LEDs to provide power for the LEDs; and the flexible PCB is folded into a predetermined shape and fit within the shade. Compared with the prior art, the utility model has the advantages that: since a plurality of LEDs are welded on a foldable flexible PCB, the plurality of LEDs can be connected through wiring on the flexible PCB, so the wiring is simple. Moreover, the flexible PCB board can be folded into a proper shape at will, so the assembly is convenient and the manufacturing cost is low.

Description

led lights

technical field

The utility model relates to an LED lamp.

Background technique

In existing LED lamps, a plurality of LEDs are generally directly welded on a hard board. This structure has the following disadvantages:

1) It is difficult to reasonably arrange the circuit connecting multiple LEDs;

2) Since the hard board cannot be folded, when the number of LEDs is large, the area of the hard board will also become larger, which brings difficulties to assembly.

In view of the above technical problems, it is necessary to design a new technical solution with simple wiring and simple assembly of LEDs.

Utility model content

Therefore, in order to effectively solve the technical problems of difficult wiring and assembly in the prior art, at least one aspect of the present invention is to provide an LED lamp, including: a base, a lampshade and a plurality of LEDs. Wherein, the plurality of LEDs are welded on a foldable flexible PCB, and the flexible PCB has wiring connected to the plurality of LEDs to provide power for the LEDs; and the flexible PCB is folded into a predetermined shape and fit within the shade.

In a preferred embodiment of the present invention, the LED lamp further includes an LED driver, the LED driver is fixed on the base; and the LED on the flexible PCB is connected to an external AC power supply through the LED driver Make an electrical connection.

In another preferred embodiment of the present utility model, the LED lamp further includes a heat sink; wherein the flexible PCB board is pasted on the outer surface of the heat sink with heat-conducting glue.

In another preferred embodiment of the present invention, the heat sink is in the shape of a cylinder or a square tube, and the heat sink is sleeved on the outside of the LED driver and fixed on the base; and the flexible The PCB board is folded into a shape corresponding to the shape of the heat sink.

In another preferred embodiment of the present invention, the flexible PCB board includes a side wall part and a top wall part, the side wall part is wound on the outer circumferential surface of the heat sink, and the top wall part covers the heat sink the top opening of the device.

In another preferred embodiment of the present utility model, the LED driver has a first pin connected to an external AC power supply and a second pin connected to a flexible PCB board.

In another preferred embodiment of the present utility model, the first pin passes through the bottom of the base.

In another preferred embodiment of the present utility model, the LED driver has a first pin connected to an external AC power supply and a second pin connected to a flexible PCB, and the first pin passes through the bottom of the base. The second pin is plugged into the socket hole on the top wall of the flexible PCB.

In another preferred embodiment of the present invention, LEDs are welded on both the side wall and the top wall of the flexible PCB.

Compared with the prior art, the utility model has the advantages that: since a plurality of LEDs are welded on a foldable flexible PCB, the plurality of LEDs can be connected through wiring on the flexible PCB, so the wiring is simple. Moreover, the flexible PCB board can be folded into a proper shape at will, so the assembly is convenient and the manufacturing cost is low.

Description of drawings

Fig. 1 shows an exploded view of an LED lamp according to a specific embodiment of the present invention;

Figure 2 shows an expanded view of the flexible PCB board in Figure 1; and

FIG. 3 shows a schematic perspective view of the assembled LED lamp shown in FIG. 1;

Detailed ways

Exemplary embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, but cannot be construed as limiting the present utility model.

1 to 3 show a specific embodiment of the LED lamp of the present invention. Specifically, Fig. 1 shows an exploded view of an LED lamp according to a specific embodiment of the present invention; Fig. 2 shows an expanded view of the flexible PCB in Fig. 1; and Fig. 3 shows the assembled LED lamp shown in Fig. 1 Stereoscopic diagram.

As shown in FIG. 1 , the LED lamp includes a base 100 , a lampshade 500 fixed on the base 100 , and a light emitting device 400 accommodated in the lampshade 500 .

As shown in FIG. 1 , in the present utility model, a light emitting device 400 includes a flexible PCB 410 and a plurality of LEDs 420 welded on the flexible PCB 410. There are wirings on the flexible PCB board 410 for connecting multiple LEDs 420 and providing power for the LEDs, and the flexible PCB board 410 is folded into a cylindrical shape so as to be accommodated in the lampshade.

However, it should be noted that the flexible PCB board 410 can also be folded into other shapes, such as a square tube shape, a cone shape, and the like. According to the teaching of the utility model, the variations of these shapes should fall within the protection scope of the utility model.

In a preferred embodiment of the present utility model, the LED lamp further includes an LED driver 200 for electrically connecting the LED 420 on the flexible PCB 410 to an external AC power source (not shown) and for connecting multiple LEDs on the flexible PCB 410. Each LED 420 is controlled. The LED driver 200 has first pins 201 , 202 connected to an external AC power source (not shown) and second pins 203 , 204 connected to a flexible PCB 410 . The LED driver 200 is inserted in the socket at the bottom of the base 100 through its first pins 201, 202, and the bottom of the base 100 with the first pins 201, 202 passes through (see FIG. 3 ), so that it can be plugged in. into an external AC power outlet.

However, it should be noted that the LED driver 200 is not necessary, and the LED lamp can also be directly powered by a DC power supply.

In another preferred embodiment of the present utility model, the LED lamp further includes a heat sink 300, the heat sink 300 is sleeved on the LED driver 200, and the base of the heat sink 300 is inserted into the base 100, thereby being fixed on the base 100 on. The heat sink 300 can be made of heat dissipation material, such as aluminum or copper.

In this preferred embodiment, the aforementioned flexible PCB board 410 is pasted on the outer surface of the heat sink 300 with thermally conductive adhesive.

In another preferred embodiment of the present utility model, the radiator 300 is cylindrical, and the flexible PCB 410 is also folded into a cylindrical shape corresponding to the shape of the radiator 300, so that it can be easily pasted on the radiator 300. on the outer surface. However, it should be noted that the heat sink 300 can also be in other shapes, such as a square cylinder or a cone, and accordingly, the flexible PCB 410 can also be folded into a square cylinder or a cone.

Please refer to FIG. 2 , in another preferred embodiment of the present invention, the flexible PCB board 410 includes a side wall portion 412 and a top wall portion 411 . The side wall portion 412 is wound around the outer circumferential surface of the heat sink 300, and the top wall portion 411 covers the top opening of the heat sink 300 (see FIG. 1).

Please refer to FIG. 2 , in another preferred embodiment of the present invention, the top wall portion 411 of the flexible PCB board 410 has two insertion holes 413 , 414 . The second pins 203 , 204 of the LED driver 200 are plugged into the socket holes 413 , 414 of the top wall portion 411 of the flexible PCB 410 , so as to realize the electrical connection between them.

Please refer to Fig. 2, in another preferred embodiment of the present utility model, on the side wall part 412 of flexible PCB board 410, solder many rows of LEDs 420, each row has four LEDs 420, and on the top wall part 411 There are two LEDs 420 soldered in.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that these embodiments can be changed without departing from the principle and spirit of the present invention. The scope is defined by the claims appended hereto and their equivalents.

Claims (9)

1. An LED lamp comprising: base (100), lamp shade (500) and a plurality of LED (420), its characterized in that:

the LEDs (420) are welded on a flexible PCB (410) capable of being folded, and the flexible PCB (410) is provided with a wiring connected with the LEDs (420) for providing power for the LEDs; and is

The flexible PCB board (410) is folded into a predetermined shape and accommodated in the lamp housing (500).

2. The LED lamp of claim 1, wherein:

the LED lamp further comprises an LED driver (200), wherein the LED driver (200) is fixed on the base (100); and is

The LED (420) on the flexible PCB (410) is electrically connected with an external alternating current power supply through the LED driver (200).

3. The LED lamp of claim 2, wherein:

the LED lamp further comprises a heat sink (300); wherein,

the flexible PCB (410) is attached to the outer surface of the heat sink (300) by a heat conductive adhesive.

4. The LED lamp of claim 3, wherein:

the radiator (300) is cylindrical or square cylindrical, and the radiator (300) is sleeved outside the LED driver (200) and fixed on the base (100); and is

The flexible PCB (410) is folded into a shape corresponding to the outer shape of the heat sink (300).

5. The LED lamp of claim 4, wherein:

the flexible PCB (410) includes a sidewall portion (412) and a top wall portion (411), the sidewall portion (412) being wound on an outer surface of the heat sink (300), the top wall portion (411) covering a top opening of the heat sink (300).

6. The LED lamp of claim 2, wherein:

the LED driver (200) has first pins (201, 202) connected to an external AC power source and second pins (203, 204) connected to a flexible PCB board (410).

7. The LED lamp of claim 6, wherein: the first pins (201, 202) pass out of the bottom of the base (100).

8. The LED lamp of claim 5, wherein:

the LED driver (200) has first pins (201, 202) connected to an external AC power source and second pins (203, 204) connected to a flexible PCB board (410),

the first pins (201, 202) penetrate out from the bottom of the base (100),

the second pins (203, 204) are inserted into insertion holes (413, 414) of a top wall portion (411) of the flexible PCB (410).

9. The LED lamp of claim 8, wherein: LEDs (420) are welded on both the side wall portion (412) and the top wall portion (411) of the flexible PCB (410).

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