Lamp having outer shell to radiate heat of light source

摘要

According to one or more arrangements, a lamp may include a device body having heat conductive properties. The device body may include a light source support and a heat radiating surface forming at least a portion of an exterior surface of the lamp device. In some examples, the light source support may be integrally formed with the heat radiating surface. The light source support may further be thermally connected or fixed to a board in various manners (e.g., screw). The board may include a plurality of light-emitting elements mounted thereon. The lamp may further include a cover. In one example, the cover may be constructed of a translucent material.

主权项

1. A lamp device comprising:
a metallic device body having heat conductive properties, the device body including:
a light source support having a flat surface,a heat radiating surface forming at least a portion of an exterior surface of the lamp device, wherein the light source support is integrally formed with the heat radiating surface,an edge projecting farther in a certain direction than the flat surface, the edge having a first side provided on a side of the light source support so as to form an obtuse angle with respect to the flat surface and a second side facing an exterior of the lamp device; anda receiving portion, a part of the receiving portion being at least partially composed of a side surface of the light source support; a board fixed to the flat surface of the light source support through a screw, and being thermally connected to the light source support; a plurality of light-emitting elements provided around the screw and mounted on the board; a cover which is provided to the device body without using an adhesive so as to cover the plurality of light-emitting elements, while facing the flat surface of the light source support, a portion of the cover positioned inside the receiving portion contacting at least a part of the side surface of the light source support and contacting at least a part of the edge; a base portion provided so as to be power-feedable to the light-emitting elements; and a light-reflecting member, at least a portion of the light-reflecting member being positioned in the receiving portion, and provided along the first side of the edge and having a reflecting surface extending in at least the certain direction, the reflecting surface configured to reflect light from the plurality of light-emitting elements in a direction of the cover, wherein the edge has an external surface forming a first heat radiating surface of the heat radiating surface, and wherein a shape of at least a portion of the exterior surface of the device body reduces in diameter toward the base portion and the at least a portion of the exterior surface forms a second heat radiating surface of the heat radiating surface, the second heat radiating surface being different from the first heat radiating surface.