CN201636579U - Heat radiation lamp - Google Patents

Abstract

A heat dissipating luminaire comprising: a lamp base, a light-emitting unit and a plurality of heat sinks. The light-emitting unit is arranged on the lamp holder, the radiating fins are connected with the light-emitting unit, and at least one through hole is formed on each radiating fin, so that air flow can directly flow on two opposite sides of each radiating fin, heat energy generated by the light-emitting unit during working is taken away, and the optimal radiating effect is achieved.

Description

Radiator lamps

technical field

The utility model relates to a lamp, in particular to a heat dissipation lamp with cooling fins.

Background technique

Due to the increasing awareness of environmental protection, the light-emitting components in many light-emitting devices (such as lamps, traffic lights, etc.) commonly used in daily life are gradually replaced by light-emitting diodes (LEDs) which are small in size and low in power consumption.

For street lamps, at least one light emitting diode is usually installed to increase its illuminance. And in order to increase the service life of the LED, the street lamp will also connect a plurality of heat dissipation fins on the non-illuminating side of the LED, as disclosed in Taiwan Patent No. M358258, which is used to reduce the heat generated by the LED during the lighting operation. waste heat export. However, as the number of LEDs in the light-emitting device and the luminous intensity of the LEDs increase day by day, the heat dissipation method disclosed in the above-mentioned patent will not be able to dissipate heat more effectively.

Contents of the invention

The purpose of the utility model is to provide a heat dissipation lamp which can improve heat dissipation efficiency.

The utility model includes a heat dissipation lamp, a lamp holder, a light emitting unit and a plurality of heat dissipation fins. The light-emitting unit is arranged on the lamp holder, and the heat sink is connected with the light-emitting unit, and at least one perforation is formed on each heat sink, so that the airflow can directly flow on opposite sides of each heat sink, so as to dissipate the light generated by the light-emitting unit during operation. The heat energy is taken away to achieve the best heat dissipation effect.

In addition, the vertical projections of the through holes on the respective heat sinks at least partially overlap each other. Preferably, the centers of the through holes on all the heat sinks are located on the same straight line.

The beneficial effect of the utility model is that the heat dissipation lamp can have a better heat dissipation effect through the special design of the heat sink.

Description of drawings

Fig. 1 is the perspective view of the preferred embodiment of the utility model heat dissipation lamp;

Fig. 2 is a side view of the heat dissipation lamp of the present embodiment;

Fig. 3 is a perspective view of the light emitting unit and the radiator of the present embodiment;

Fig. 4 is a top view of the heat dissipation lamp of this embodiment.

In the figure: 100. Heat dissipation lamp, 110. Opening, 1. Lamp holder, 11. Base body, 12. Screw joint, 2. Light emitting unit, 22. Circuit board, 23. Light emitting component, 3. Radiator, 31 .connecting part, 32. heat sink, 321. body part, 322. perforation, 4. lampshade.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Referring to Fig. 1 and Fig. 2, it is a preferred embodiment of the heat dissipation lamp 100 of the present utility model. The heat energy generated when the light emitting unit 2 emits light is quickly dissipated to achieve the best heat dissipation effect.

The lamp holder 1 has a base portion 11 and a screw connection portion 12 . In this embodiment, the overall shape of the seat part 11 is bowl-shaped and an opening 110 is formed on one side thereof; the screw connection part 12 is located on the side of the seat part 11 opposite to the opening 110, and is suitable for screwing on the wall The power socket (not shown) on the upper part is used to receive the power required by the light-emitting unit 2 when it is working.

The light-emitting unit 2 has a circuit board (PCB) 22 electrically connected to the lamp holder 1, and a plurality of light-emitting components 23 arranged on the circuit board 22, wherein the light-emitting components 23 of this embodiment are light-emitting diodes (LEDs), but not This is the limit. In addition, the heat dissipation lamp 100 also includes a lampshade 4 covering the light-emitting unit 2. The lampshade 4 is connected to the lamp holder 1 and is made of a light-transmitting material, so that the light source generated by the light-emitting component 23 can pass through the The lampshade 4 diverges to the outside.

Referring to FIG. 3 , the heat sink 3 is connected to the light emitting unit 2 and has a connecting portion 31 and a plurality of cooling fins 32 perpendicular to the connecting portion 31 . In this embodiment, the connecting portion 31 and the heat sinks 32 are made of the same heat-conducting material, and the connecting portion 31 and the heat sinks 32 are integrally formed. Of course, they can also be made separately and then connected. example is limited. Furthermore, the other side of the connecting portion 31 opposite to the heat sink 32 can be fixed on the circuit board 22 by means of screw lock or engagement, so that the heat sink 32 can dissipate the heat generated by the circuit board 22 and the light emitting assembly 23 during operation. The heat is exported to the outside. The cooling fins 32 respectively have a body portion 321 and at least one through hole 322 .

Each heat sink 32 is arranged side by side on the lamp holder 1, so that the airflow can flow along the length direction parallel to the length direction of the body part 321 of each heat sink 32, that is, the gap between two adjacent heat sinks 32. The heat energy generated when the light emitting unit 2 works is taken away.

In addition, refer to the top view of the heat dissipation lamp 100 in FIG. 4 . In this embodiment, six through-holes 322 are formed on each heat sink 32 , and the number is not limited. The airflow flowing in the longitudinal direction can directly pass through opposite sides of the body portion 321 of each heat sink 32 to further increase the heat dissipation effect of the heat sink 3 .

Preferably, the vertical projections of the through holes 322 on the heat sinks 32 at least partially overlap each other, so that the airflow can pass through the two opposite sides of the body portion 321 of the heat sinks 32 more smoothly, so as to achieve the best heat dissipation effect. And the best mode is that the centers of the through holes 322 on all the heat sinks 32 are located on the same straight line.

In order to simplify the manufacturing process of the heat sink 3 and reduce the production cost, the heat sink 3 of this embodiment is formed after the heat sink 32 and the connecting portion 31 are integrally formed, and then the body portion 321 perpendicular to each heat sink 32 is drilled Drill holes for all the cooling fins 32 along the length direction, that is, the size of the through holes 322 on all the cooling fins 32 will be the same and their centers will also be located on the same straight line. Of course, each cooling fin 32 can also utilize drilling tools of different apertures to drill through holes 322 of different apertures, and it is also possible to form the through holes 322 on the cooling fin 32 while the cooling fin 32 is being made, so that no additional follow-up is required. drilling operations.

What is particularly mentioned is that the perforations 322 formed on the heat sinks 32 are mainly provided for the airflow to directly pass through the two opposite sides of the heat sinks 32 to take away the heat energy. Therefore, the heat sinks 32 are used No heat conduction components, such as heat pipes, will be inserted into the through holes 322, so as to achieve the best heat dissipation effect of the radiator 3.

In summary, the heat dissipation lamp 100 of the present utility model forms at least one perforation 322 on its heat sink 32, so that the airflow flowing along the length direction perpendicular (or nearly perpendicular) to the body portion 321 of each heat sink 32 can pass through. Each through hole 322 takes away the heat energy generated by the circuit board 22 and the light-emitting component 23 during operation, so as to achieve the best heat dissipation effect of the heat sink 3 .

Claims (4)

1. One kind the heat radiation light fixture; It is characterized in that:

   This heat radiation light fixture comprises:

   One lamp socket;

   One luminescence unit is arranged on the described lamp socket; And

   Most fin, these fin are connected with described luminescence unit, are formed with at least one perforation on each fin, and air-flow can be directly passes through at two opposition sides of each fin.
2. 2. heat radiation light fixture according to claim 1 is characterized in that: the upright projection of the perforation on the described fin is overlapped to small part.
3. 3. heat radiation light fixture according to claim 2 is characterized in that: the perforation on the described fin be centered close to same straight line.
4. 4. according to the described heat radiation light fixture of arbitrary claim in the claim 1 to 3, it is characterized in that: this heat radiation light fixture also comprises one and is connected the lampshade that described lamp socket and cover overlay on described luminescence unit.

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