TWI510742B - Centrifugal fan driven active LED lighting radiator - Google Patents

Description

Centrifugal fan driven active LED lamp radiator

The invention relates to a centrifugal fan driven active LED lamp radiator, in particular to an innovative convection design that enables an LED lamp to have a tighter volume and higher operating power.

According to the LED, about 80% of the energy is transmitted to the environment through waste heat during the illumination process. However, high temperature operating environments will impose restrictions on the use of electronic packaging components, including lifetime, product reliability, and light decay. The conventional LED lighting assembly includes a circuit board and a plurality of LED components electrically connected to the circuit board, and the heat system generated by the LED component can be dispersed by the heat sink by using a heat sink disposed on the LED lighting component. Thereby extending the life of the LED component, improving the reliability of the LED component, and reducing the light decay phenomenon of the LED component. However, in the conventional heat sink, an aluminum extruded or aluminum die-cast heat sink is mostly used, or a plurality of fin modules connected by a heat pipe are disposed on the back surface of the LED light emitting component. The blind spots of these designs pay too much attention to the area of the fins and neglect the importance of air circulation, which causes the problem of poor heat dissipation of the LED lighting components to be delayed.

Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure that is more ideal and practical, and to use the eagerly awaited by consumers, is also the goal and direction of the relevant industry to strive to develop breakthroughs.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the creator will have a practical basis. invention.

That is, the main object of the present invention is to provide a centrifugal fan-driven active LED lamp radiator; the problem to be solved is that the disadvantage of the conventional LED heat dissipation is that the area of the fin is too much ignored. The importance of air circulation leads to the problem of poor heat dissipation of LED lighting components. It is impossible to improve the problem and improve the breakthrough. The technical features of solving the problem mainly include including a heat sink, which includes a base and internal formation. There is a heat dissipating space, and the plurality of air guiding holes are formed in the circumferential side of the heat dissipating block so that the outer space communicates with the heat dissipating space through the plurality of air guiding holes, and the outer peripheral wall surface of the heat dissipating block is further provided with a plurality of annular wall surfaces. The longitudinal fins define a space formed between the longitudinal fins as an air guiding channel; a cooling wind generator includes a centrifugal rotating wheel, and the centrifugal rotating wheel is disposed at a central position on the base of the heat sink And a motor group is arranged in the center of the centrifugal turntable, and a plurality of centrifugal fan blades are arranged on the circumference of the motor group; thereby, the innovative and unique design makes the centrifugal wind of the invention Compared with the traditional passive heat dissipation, the active convection cooling device can improve the overall heat dissipation function by several times and can make the LED lamp have a tighter volume and higher operating power. Further, the present invention achieves the practical progress of improving the quality.

1‧‧‧ Heat sink

10‧‧‧First heat sink

11‧‧‧Team

12‧‧‧Fins

13‧‧‧Air guide

14‧‧‧ Air vents

15‧‧‧Base

16‧‧‧Second heat sink

17‧‧‧Power Department

18‧‧‧Team Department

20‧‧‧Cool wind generator

21‧‧‧ Centrifugal turntable

22‧‧‧ Motor Group

23‧‧‧ Centrifugal fan blades

S‧‧‧heating space

Fig. 1 is a perspective view showing the combination of the present invention.

Fig. 2 is an exploded perspective view of the present invention.

Figure 3 is a perspective partial cross-sectional view of the present invention.

Fig. 4 is a view showing the state of air flow in the state of use of the present invention.

Fig. 5 is a diagram showing the use state of the present invention, which shows the state of the airflow in different directions.

Please refer to FIGS. 1~5, which are preferred embodiments of the centrifugal fan-driven active LED lamp heat sink of the present invention, but the embodiments are for illustrative purposes only, and are not applicable to the patent application. The limitation includes a heat sink (1) including a base (15), a heat dissipation space (S) is formed therein, and a plurality of air guiding holes (14) are formed in the circumferential side of the heat sink (1). So that the outer space communicates with the heat dissipation space (S) through the plurality of air guiding holes (14), and the peripheral wall surface of the outer edge of the heat dissipation seat (1) is further provided with a plurality of longitudinal fins (12). The space formed between the longitudinal fins (12) is defined as an air guiding channel (13); wherein the heat sink (1) is divided into a first heat sink (10) and a second heat sink (16). Wherein the upper end of the first heat sink (10) is provided with a set of joints (11), and the second heat sink (16) is provided with a set of portions (18) corresponding to the position of the joint portion (11), so that The assembly portion (11) of the first heat dissipation seat (10) is assembled to the assembly portion (18) of the second heat dissipation seat (16), and the upper end portion of the second heat dissipation seat (16) is further disposed. There is a power supply (17); a cooling wind production The living device (20) comprises a centrifugal turntable (21) which is located at a central position on the base (15) of the heat sink, and a motor set is arranged in the center of the centrifugal turntable (21) 22), the motor group (22) is surrounded by a plurality of centrifugal blades (23).

With the above structure and composition design, the operation of the present invention will be described as follows: when the plurality of centrifugal blades (23) are rotated clockwise or counterclockwise by the centrifugal dial (21), the guide The air hole (14) and the air flow guiding groove (13) disposed on the lateral side of the first heat sink (10) can generate two embodiments of all or only the air outflow from the heat dissipating space (S), so that the heat sink can be (1) The internal heat source is discharged through forced convection, and the two kinds of reflux A completely oppositely oriented design will likely result in a natural convection between the forced convection of the centrifugal fan and the longitudinal fins (12).

When the centrifugal fan blade (23) rotates forward, the heat dissipation space (S) discharges hot air through the air guiding hole (14), and collides with the natural convection of the air flow guiding groove (13) when the hot air is discharged. The turbulent flow is formed, thereby achieving better heat conduction benefit, and the air flow channel (13) is a natural airflow heat dissipation, and the airflow between the air and the airflow channel (13) causes the airflow to rise and then dissipate. At the same time, the cold air is added to enter the air guiding channel (13) to achieve the temperature balance of the airflow, so that the heat dissipation space (S) forms a natural circulation of heat convection with the outside air; otherwise, when the centrifugal fan blade (23) is reversed When the air is turned, the outside air is sucked into the heat dissipation space (S) through the lower air guiding hole (14), and the hot air inside the heat dissipation space (S) is discharged from the upper air guiding hole (14) by suction. A row of hot and cold air exchanges, which in turn creates a natural convection enhancement mechanism with the outside air.

Thereby, the active type LED lamp radiator driven by the centrifugal fan of the invention is compared with the conventional passive heat dissipation, and the active convection cooling structure can improve the overall heat dissipation function by several times or more, and can make the LED lamp have more compactness. The volume and higher operating power, in turn, enable the present invention to achieve practical improvements in quality.

By summarizing the above description, the design of the above structure of the present invention can effectively overcome the shortcomings faced by the conventional invention, and further has the above-mentioned numerous advantages and practical values. Therefore, the present invention is an innovative invention and is identical in the same No identical or similar product creation or public use has been found in the technical field. Therefore, the present invention has met the requirements for "novelty" and "progressiveness" of the invention patent, and is applied according to law.

1‧‧‧ Heat sink

10‧‧‧First heat sink

11‧‧‧Team

12‧‧‧ Radial cymbals

13‧‧‧Air guide

14‧‧‧ Air vents

16‧‧‧Second heat sink

17‧‧‧Power Department

18‧‧‧Team Department

20‧‧‧Cool wind generator

21‧‧‧ Centrifugal turntable

22‧‧‧ Motor Group

23‧‧‧ Centrifugal fan blades

Claims (2)

The utility model relates to a centrifugal fan-driven active LED lamp radiator, comprising: a heat sink, which comprises a base, a heat dissipation space is formed therein, and a plurality of air guiding holes are arranged through the circumference side of the heat sink seat, so that the outside is used The plurality of air guiding holes communicate with the heat dissipating space, and the peripheral wall surface of the outer edge of the heat dissipating block is further provided with a plurality of longitudinal fins in an annular shape, so that a space formed between the longitudinal fins is defined as an air guiding channel; a cooling wind generator includes a centrifugal turntable disposed at a central position on the base of the heat sink, and a center of the centrifugal turntable is provided with a motor group, and the peripheral side of the motor set is provided with a plurality of centrifugal blades By. The centrifugal fan-driven active LED lamp heat sink of claim 1, wherein the heat sink is provided with a first heat sink and a second heat sink, wherein the first heat sink has a set of joints at the upper end. And the second heat sink is provided with a set of portions corresponding to the position of the assembly portion, so that the assembly portion of the first heat dissipation seat is assembled to the assembly portion of the second heat dissipation seat, and the second heat dissipation is further performed. The upper end of the seat is provided with a power receiving part.