CN202769357U - A kind of LED lamp - Google Patents

Abstract

The utility model discloses a LED lamp, this LED lamp includes: a lamp holder as a carrier for the entire lamp; the heat dissipation seat is fixed on the lamp holder, and a cavity is formed in the heat dissipation seat; the light-emitting device is fixedly arranged in the cavity of the heat dissipation seat; the light-emitting device is fixedly arranged in the cavity in the heat dissipation seat and is sleeved on the light-emitting device, so that the light-emitting device is packaged in the cavity in the heat dissipation seat; the electrode contact pin fixedly arranged on the lamp holder is electrically connected with the light-emitting device. The utility model discloses well illuminator's circuit board is direct and the radiating seat contact, forms the air convection through the clearance in the radiating seat and dispels the heat, directly dispels the heat to illuminator promptly, and does not need the medium supplementary to improve the radiating effect of radiating seat greatly, be favorable to prolonging LED's life, can improve the utility model discloses a life.

Description

A kind of LED lamp

Technical field:

The utility model relates to the technical field of lighting products, in particular to an LED lamp with compact structure and excellent heat dissipation effect.

Background technique:

As we all know, traditional incandescent lamps have high energy consumption and very low energy utilization rate, less than one-tenth of the energy is converted into light energy, and the rest is wasted in the form of heat energy, so people have been trying to find a way Replace incandescent lamps with new light sources. Therefore, energy-saving lamps have emerged as the times require. Because they are relatively cheap and easy to manufacture, they have been widely used and tend to gradually replace incandescent lamps. Energy-saving lamps use the principle of electronic luminescence excitation to emit light. Compared with incandescent lamps, energy-saving lamps have the advantage of saving electricity, but one disadvantage of energy-saving lamps is that energy-saving lamps contain mercury, and mercury plays an intermediary role in energy-saving lamps. Without mercury, CFLs would not glow. As a result, energy-saving lamps will be polluted with mercury during the production process and after they are discarded. In addition, energy-saving lamps are still made of glass, which is easy to break, difficult to transport, and difficult to install. Secondly, its power consumption is still relatively large. Finally, energy-saving lamps are easily damaged and have a short service life.

At present, the development direction of energy-saving lighting appliances is LED lamps. Compared with the above-mentioned lighting fixtures, LED lights have the following advantages:

1. Energy saving. The energy consumption of white light LED is only 1/10 of that of incandescent lamp and 1/4 of that of energy-saving lamp.

2. Long service life. The life of LED lamps can reach more than 100,000 hours, which is much higher than that of incandescent lamps and energy-saving lamps.

3. It can be started frequently. If traditional energy-saving lamps and incandescent lamps are frequently turned on or off, the filament will be black and easily broken, but LED lights will not.

4. Solid-state packaging, which belongs to the type of cold light source, so it is very convenient to transport and install, and can be installed in any miniature and closed equipment without fear of vibration.

5. Environmental protection, LED has no harmful substances of mercury. The assembly parts of the LED lamp can be easily disassembled and recycled.

Based on the above advantages, LED lamps will gradually replace other lighting fixtures. However, during the working process of LEDs in existing LED lamps, 70% to 80% of the input power is converted into heat that cannot be released by radiation, and the size of the LED chip is small. If the heat dissipation is not good, the temperature of the LED chip will increase. , causing uneven distribution of thermal stress, which in turn leads to a decrease in the luminous efficiency of the chip and a decrease in the laser efficiency of the phosphor. In order to ensure the service life of the LED and improve the luminous efficiency of the LED, it is generally necessary to perform a good heat dissipation treatment on the LED.

In the prior art, traditional LED lamps are equipped with radiators for dissipating heat from LED chips, and the heat generated by the radiators on the LED chips is conducted to the radiators through circuit boards, substrates, thermal adhesives, etc. in the form of heat conduction. In order to dissipate the heat, since the heat sink cannot directly dissipate heat to the LED chip, a certain medium is needed to assist, thereby reducing the heat dissipation effect of the heat sink.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an LED lamp with compact structure and excellent heat dissipation effect.

In order to solve the above technical problems, the utility model adopts the following technical solutions: an LED lamp, the LED lamp includes: a lamp holder, the lamp holder is used as the bearing part of the entire lamp; a heat sink, the heat sink is fixed on the On the lamp holder described above, a cavity is formed in the heat sink; a light emitting device is fixedly installed in the cavity in the heat sink; a lampshade is fixedly mounted in the cavity in the heat sink, and The cover is put on the light-emitting device, so that the light-emitting device is packaged in the cavity of the heat dissipation seat; the electrode pins fixedly installed on the lamp holder are electrically connected with the light-emitting device.

Further, in the above technical solution, the heat sink includes: a plurality of fins connected and fixed to each other and a top sheet for fixing on the top of the fins, the sides of the fins enclose the cavity, the A gap is formed between the cooling fins to pass through the cavity and is used to dissipate heat from the light-emitting device, and the through holes provided on the top sheet correspond to the gap one by one and communicate with each other.

Further, in the above technical solution, the light-emitting device includes: a circuit board fixed in the cavity of the heat sink and an LED mounted on the circuit board, wherein the circuit board is mounted on the lamp holder The electrode pins are electrically connected.

Further, in the above technical solution, the lampshade includes: a collar and a transparent cover embedded and fixed on the upper end of the collar, wherein the upper end of the transparent cover is provided with a plurality of evenly arranged honeycomb-shaped grooves, A mounting groove is arranged on the lower end surface of the transparent cover.

After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

1. In the utility model, the light-emitting device is installed in the cavity of the heat sink, and the heat sink is provided with a plurality of gaps passing through the cavity, wherein the circuit board of the light-emitting device is directly in contact with the heat sink, and passes through the gaps in the heat sink. The air convection heat dissipation is formed, that is, the light-emitting device is directly dissipated without the aid of a medium, thereby greatly improving the heat dissipation effect of the heat dissipation seat, which is beneficial to prolonging the service life of the LED, which can improve the service life of the utility model.

2. The upper end surface of the transparent cover in the utility model is provided with a plurality of uniformly arranged honeycomb-shaped grooves, so that the light emitted by the light-emitting device can be projected better, and the luminous effect of the utility model is effectively improved.

Description of drawings:

Fig. 1 is the front view of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is a schematic diagram of the assembly of the heat sink and the light emitting device in the utility model;

Fig. 4 is the sectional view of lampshade in the utility model;

Explanation of reference signs:

1 Lamp holder 11 Electrode pin 2 Heat sink 20 Cavities

3 Lighting device 31 Circuit board 32LED 4 Lampshade

21 heat sink 211 gap 22 top sheet 221 through hole

41 collar 42 transparent cover 421 groove 422 installation groove

Detailed ways:

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

As shown in Figures 1-4, an LED lamp includes: a lamp holder 1, which serves as a carrier for the entire lamp; a heat sink 2, which is fixed to the lamp holder 1, a cavity 20 is formed in the heat sink 2; a light-emitting device 3, which is fixedly installed in the cavity 20 of the heat sink 2; a lampshade 4, the light-emitting device 4 is fixedly installed in the heat sink 2 In the cavity 20 of the light-emitting device 3, the light-emitting device 3 is packaged in the cavity 20 of the heat sink 2; the electrode pin 11 fixedly installed on the lamp holder 1 is connected with the light-emitting device 3 electrical connection.

The heat sink 2 includes: a plurality of fins 21 connected and fixed to each other and a top sheet 22 fixed on the top of the fins 21. The sides of the fins 21 enclose the cavity 20. The fins 21 There is a gap 211 passing through the cavity 20 and used for dissipating heat from the light emitting device 3 . The through holes 221 provided on the top sheet 22 correspond to the gaps 211 one by one and communicate with each other.

The light-emitting device 3 includes: a circuit board 31 fixed in the cavity 20 of the heat sink 2 and an LED 32 mounted on the circuit board 31, wherein the circuit board 31 is connected to the lamp socket 1 mounted on the circuit board 31. The electrode pins 11 are electrically connected. The circuit board 31 falls into the cavity 20 of the heat sink 2 and is fixed by screws, and the LED 32 is exposed in the cavity 20 of the heat sink 2. In this way, the circuit board 31 can be directly in contact with the heat sink 2, and air convection heat dissipation can be formed through the gap 211 in the heat sink 2, that is, the light-emitting device 3 can be directly dissipated without the aid of a medium, thereby greatly improving the heat dissipation effect of the heat sink , is beneficial to prolong the service life of LED, can improve the service life of the utility model.

The lampshade 4 includes: a collar 41 and a transparent cover 42 embedded and fixed on the upper end of the collar 41, wherein the upper end of the transparent cover 42 is provided with a plurality of evenly arranged honeycomb-shaped grooves 421, the transparent cover 42 A mounting slot 422 is provided on the lower end surface. The lampshade 4 is embedded and fixed in the cavity 20 of the heat sink 2, wherein the collar 41 is covered on the circuit board 31 of the light emitting device 3, and the mounting groove 422 provided on the lower surface of the transparent cover 42 is covered on the LED 32. In addition, , the groove 421 on the upper end surface of the transparent cover 42 can make the light emitted by the light emitting device 3 be better projected out, effectively improving the light emitting effect of the present invention.

Of course, the above descriptions are only specific embodiments of the utility model, and are not intended to limit the implementation scope of the utility model. Should be included in the utility model patent scope.

Claims (4)

1. LED light fixture, it is characterized in that: this LED light fixture comprises:

One lamp socket (1), this lamp socket (1) is as the bearing part of whole lamp;

One radiating seat (2), this radiating seat (2) are fixed on the described lamp socket (1), form a cavity volume (20) in this radiating seat (2);

One light-emitting device (3), this light-emitting device (3) are fixedly installed in the middle cavity volume (20) of radiating seat (2);

One lampshade (4), this light-emitting device (4) are fixedly installed in the cavity volume (20) in the radiating seat (2), and cover is placed on the light-emitting device (3), make light-emitting device (3) be packaged in the radiating seat (2) in the cavity volume (20);

The upper hard-wired electrode contact pin (11) of described lamp socket (1) is electrically connected with described light-emitting device (3).

2. a kind of LED light fixture according to claim 1, it is characterized in that: described radiating seat (2) comprising: the fin that multi-disc is interconnected and fixed (21) and for fixing to the top flat (22) on fin (21) top, the side of fin (21) surrounds described cavity volume (20), be formed with between this fin (21) connect this cavity volume (20) and be used for gap (211) that described light-emitting device (3) is dispelled the heat, the upper through hole (221) that arranges of described top flat (22) is corresponding one by one with this gap (211), and is interconnected.

3. a kind of LED light fixture according to claim 1, it is characterized in that: described light-emitting device (3) comprising: be fixed in the circuit board (31) in the cavity volume (20) in the described radiating seat (2) and be installed on LED(32 on the circuit board (31)), wherein, this circuit board (31) is electrically connected with the upper electrode contact pin (11) of installing of described lamp socket (1).

4. a kind of LED light fixture according to claim 1, it is characterized in that: described lampshade (4) comprising: the collar (41) and inlaying is fixed in the translucent cover (42) of the collar (41) upper end, wherein, this translucent cover (42) upper surface be provided with a plurality of evenly arrange be cellular groove (421), translucent cover (42) lower surface is provided with a mounting groove (422).

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