Lamp

Abstract

The invention relates to a lamp which comprises a shell, a circuit board, a radiation module and a luminous element. The shell has a first end and a second end and is provided with an air inlet part and an air outlet part, the circuit board comprises a substrate and a plurality of electronic elements, each electronic element is arranged at least one surface of the substrate, an electronic element with the highest axial height faces the second end of the shell, and the combination position of the substrate can be closely attached to the first end of the shell so as to prevent the substrate from excessively shielding the air inlet part of the shell, ensure that an external airflow introduced by the radiation module can smoothly pass through the air inlet part and flow in the shell, enable the radiation module to provide the luminous element with better radiation effect and effectively prolong the service life of the lamp.

Description

technical field [0001] The present invention relates to a lamp, in particular to a lamp which ensures smooth circulation of external airflow inside the lamp. Background technique [0002] Please refer to FIG. 1 , the conventional lamp 9 includes a housing 91 , a light emitting element 92 , a heat dissipation module 93 and a circuit board 94 . The outer peripheral wall of the casing 91 is provided with an air inlet portion 911 and an air outlet portion 912; the light emitting element 92, the heat dissipation module 93 and the circuit board 94 are assembled inside the casing 91, wherein the light emitting element 92 is combined with the heat dissipation module 93 , the circuit board 94 is electrically connected to the light emitting element 92 . In this way, when the light-emitting element 92 generates heat during actual use, the cooling module 93 can be used to introduce external airflow through the air inlet 911, and the cooling module 93 can be used to allow the external a...

AI Technical Summary

Problems solved by technology

[0005] Although the improved structure of the circuit board of the LED lamp can rely on the design of the vent hole to ensure that the outside air can circulate smoothly inside the LED lamp; however, the circuit board must additionally form the vent hole, making the circuit board The production steps are too cumbersome; in addition, the air vent must be located on the circuit board where there are no electronic components and circuits, so when it is desired to form the air vent on the circuit board, the manufacturing steps for the air vent are also equivalent. Difficulty, therefore, caused a lot of inconvenience in the production of the circuit board

Furthermore, even if the vent holes are formed on the circuit board, the circuit board will still obstruct the airflow path inside the LED lamp to a certain extent, resulting in poor heat dissipation effect of the LED lamp

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