| 摘要 |
An LED bulb-shaped light (10) uses an open heat dissipation mode to eliminate the defect in the heat dissipation structure, and comprises a housing component, an LED circuit component (2), and a lighting circuit component (6). The housing component comprises a lamp body and a lamp holder. The LED circuit component (2) and the lighting circuit component (6) are located in an internal cavity of the housing component. The LED circuit component (2) comprises a substrate (3) and an LED light-emitting element mounted on a front surface of the substrate (3). The lamp body is a heat dissipation body (5) made by pressing and machining a heat dissipation material, has a lower end connected to the lamp holder, and has an upper end provided with a connection portion of the LED circuit component (2). The connection portion of the LED circuit component (2) of the heat dissipation body (5) and the main part of the heat dissipation body (5) are integral structural member. An outer wall surface of the housing component is provided with more than two heat dissipation hole combinations (4, 8, 53). The internal cavity of the housing component is provided with a heat dissipation airflow channel. The more than two heat dissipation hole combinations (4, 8, 53) form an air inlet hole combination and an air outlet hole combination respectively. The air inlet hole combination and the air outlet hole combination are both in communication with the heat dissipation airflow channel. |
