Lamp moisture absorption device and lamp

Abstract

This invention relates to a moisture-absorbing device for a lamp, comprising: a moisture-absorbing body including a closed cover, a circumferential wall, and a receiving space; the cover defining a central axis, the circumferential wall extending around the central axis and forming the receiving space; the receiving space having an opening; the cover closing the receiving space on a side away from the opening to prevent communication between the opening and the receiving space and the outside; a moisture-absorbing unit in the form of powder and filling the receiving space; and a first breathable membrane detachably closing the opening of the receiving space. This invention also relates to a lamp comprising the aforementioned moisture-absorbing device.

Claims

1. A lamp moisture-absorbing device, comprising: A moisture-absorbing body includes a closed cover, a circumferential wall, and a receiving space. The cover defines a central axis, and the circumferential wall extends around the central axis and forms the receiving space. The receiving space has an opening, and the cover closes the receiving space on the side away from the opening to prevent the opening and the receiving space from communicating with the outside. A moisture-absorbing unit is in the form of powder and fills the receiving space. A first breathable membrane is detachably used to close the opening of the receiving space. At least one airtight ring is included. The outer periphery of the circumferential wall is provided with a plurality of annular grooves, which are spaced apart along one of the extending directions of the central axis. The at least one airtight ring is disposed in at least one of the annular grooves.

2. The lamp moisture absorption device as claimed in claim 1, wherein the pore size of each of the plurality of pores of the first breathable membrane is larger than that of a gas molecule and smaller than that of a liquid molecule, and the particle size of each of the powder particles is larger than that of the pore size of each of the pores.

3. The luminaire moisture-absorbing device as claimed in claim 1, wherein one of the axial dimensions of the circumferential wall is larger than one of the outer diameter dimensions of the cover.

4. The lamp moisture-absorbing device as claimed in claim 1, wherein a lever portion is further protruding from the outer side of the cover portion, the lever portion extending radially along the cover portion and passing through the central axis.

5. A lamp fixture comprising the lamp fixture moisture-absorbing device according to any one of claims 1 to 4, further comprising: A lamp body includes a lampshade and a lamp housing. The lampshade covers the lamp housing and forms a cavity with the lamp housing. The lamp housing has a vent and a mounting part. The vent connects the cavity and the outside. A moisture-absorbing device of the lamp is detachably provided on the mounting part. The opening and the accommodating space connect to the cavity. A second breathable membrane is provided to detachably close the vent.

6. The lamp as claimed in claim 5, wherein the lamp body further includes a circuit board disposed within the lamp housing, the circuit board having a through hole, one end of the lamp's moisture-absorbing device passing through the through hole, and the opening being located between the circuit board and the lamp housing.

7. The lamp as claimed in claim 5, wherein the lamp moisture-absorbing device further includes a plurality of airtight rings disposed in at least two of the ring grooves, the mounting portion includes a seat protruding into the cavity, the seat having a receiving groove and a through hole communicating with the receiving groove and the cavity, the lamp moisture-absorbing device being disposed in the receiving groove, the opening communicating with the through hole, and the plurality of airtight rings radially pressing against and circumferentially abutting against a wall portion of the receiving groove to prevent moisture in the cavity from flowing from between the lamp moisture-absorbing device and the seat to the outside.

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