1. Field of the Invention:
This invention relates night lamp technology and more particularly, to a safety aroma diffusing night lamp assembly, which ensures a high level of safety.
2. Description of the Related Art:
There are night lamps with an added aroma diffusing function. These night lamps combine a night lamp unit and an aroma diffuser unit. U.S. Pat. No. 8,147,097B1 discloses a similar design. However, the user needs to prepare a particular container for holding an aromatic wax or essential oil, and then to carefully pick up the aromatic wax or essential oil from the container and to put the aromatic wax or essential oil in an accommodation chamber at a top side of a ceramic container above the lampshade for heating by the radiating heat energy of the lamp bulb. During application, the lamp bulb may be contaminated by the aromatic wax or essential oil. Further, when the aromatic wax or essential oil is used up, the user needs to clean the accommodation chamber, avoiding mixing of different aromatic substances or smells. Further, if the accommodation chamber is made of a fragile material, such as ceramic or glass, the accommodation chamber may be broken easily during cleaning.
Further, U.S. Pat. No. 6,921,180B2 discloses a connector of a C-type bulb assembly, which includes two half symmetric pieces, wherein the first piece having its two side projections provided with related rods and the second piece having its two side projections provided with related apertures. The two half pieces can be assembled together to become the connector while the bulb holder is connected therein, and the holder with the connector is capable of being assembled or disassembled with the shell easily and quickly. Because this design can easily be assembled or disassembled and because the lamp bulb is exposed to the outside when electrically conducted, a child may damage the lamp bulb when playing the connector of a C-type bulb assembly for fun, causing an electric shock accident.
The present invention has been accomplished under the circumstances in view. It is therefore the main object of the present invention to provide a safety aroma-diffusing night lamp assembly, which prevents a careless user or child from directly touching the lamp bulb, and enables a user to replace the lamp bulb safely.
To achieve this and other objects of the present invention, a safety aroma-diffusing night lamp assembly comprises body electrically connectable to a power supply outlet for power input and comprising a coupling socket located at a top side thereof, a lamp bulb inserted into the coupling socket and electrically connected to the body, a lampshade connected to the coupling socket to surround the lamp bulb and comprising a top opening located at a top side thereof and a bottom coupling hole located at a bottom wall thereof and coupled to the coupling socket, and an aroma capsule, which comprises a disposable heat-transfer container mounted in the top opening of the lampshade and defining a top opening and adapted for receiving radiating heat energy from the lamp bulb, a solid aromatic substance contained in the disposable heat-transfer container and heatable by the radiating heat energy to release an aromatic smell, a breathing film sealed to the top opening of the disposable heat-transfer container, and a sealing film bonded to the disposable heat-transfer container over the breathing film to seal the solid aromatic substance in the disposable heat-transfer container.
Further, the lampshade comprises at least one slot cut through the bottom wall thereof and radially extended from the bottom coupling hole. Further, the coupling socket comprises at least one retaining rod radially extended from an outer perimeter thereof at a top side and insertable through the at least one insertion slot of the lampshade and stoppable at a top side of the bottom wall of the lampshade upon a rotary motion of the lampshade relative to the coupling socket and a locating flange coupling socket extending around the outer perimeter of the coupling socket at a bottom side and stoppable at a bottom side of the bottom wall of the lampshade. The body further comprises a screw holder protruded from the periphery thereof, and a screw mounted at the screw holder and rotatable into one insertion slot of the lampshade to lock the lampshade to the coupling socket.
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Further, the solid aromatic substance 75 can be an aromatic wax or perfume block.
Further, commercial aroma diffusers are commonly capable of diffusing an aromatic smell when heated to the temperature of 35˜75° C. The lamp bulb 62 can heat the aroma capsule 7 to the temperature of 35˜75° C., causing the aroma capsule 7 to diffuse a good smell into the outside open air. Under this temperature range, the disposable heat-transfer container 71 will not melt or deform and can efficiently transfer heat energy produced by the lamp bulb 62 to the solid aromatic substance 75. The disposable heat-transfer container 71 can be a thin metal film container, a hard plastic container, or a fiber bowl made of a plant fiber such as corn fiber, glass fiber or carbon fiber.
Preferably, the disposable heat-transfer container 71 is made of aluminum film, having the characteristics of lightweight, thin wall thickness and good heat conductivity. Thus, the disposable heat-transfer container 71 can transfer heat energy produced by the lamp bulb 62 to the solid aromatic substance 75 rapidly, causing the solid aromatic substance 75 to diffuse a good smell. Further, the disposable heat-transfer container 71 is tough and not easily breakable, eliminating the fragile drawback of ceramic or glass containers that are commonly used in conventional aroma diffusers for holding an essential oil. Further, the sealing film 72 seals the solid aromatic substance 75 in the disposable heat-transfer container 71, maintaining the quality of the solid aromatic substance 75. Further, the solid aromatic substance 75 is sealed in the disposable heat-transfer container 71. When using the solid aromatic substance 75, the user simply needs to remove the sealing film 72 from the disposable heat-transfer container 71 without contacting the solid aromatic substance 75. Further, after the solid aromatic substance 75 is used up, the user can remove the disposable heat-transfer container 71 from the top opening 641 of the lampshade 64, and then put a new aroma capsule 7 in the top opening 641 of the lampshade 64 to replace the used aroma capsule without the necessity of cleaning the used aroma capsule. Further, because the disposable heat-transfer container 71 is made of aluminum foil, it is not breakable. Thus, the user needs not to worry about breaking down the disposable heat-transfer container 71. Further, the user needs not to prepare an extra container for holding the solid aromatic substance 75.
Further, the breathing film 70 is selected from the material group of nonwoven fabric, fiber cloth, woven fabric, porous plastic membrane and porous silicon rubber, and adapted to guide diffusing aromatic smell upwardly through open spaces therein toward the outside open air. An user can remove the sealing film 72 from the disposable heat-transfer container 71 conveniently, and then put the disposable heat-transfer container 71 in the top opening 641 of the lampshade 64 and then heated by the lamp bulb 62, causing the solid aromatic substance 75 to release a pleasant smell. If the safety aroma-diffusing night lamp assembly falls to the floor accidentally, the breathing film 70 still can keep the molten aromatic substance in the disposable heat-transfer container 71, preventing the molten aromatic substance from flowing into the coupling socket 61, the body 60 and the lampshade 64 to contaminate the lamp bulb 62 or to wet the internal circuit of the body 60, ensuring a high level of safety.
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Further, the two insertion slots 642 of the lampshade 64 can be made having different lengths so that the screw 16 can be inserted into the insertion slot 642 that is relatively longer.
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Further, the screw holder 65 is kept abutted against the periphery of the locating flange 611 of the coupling socket 61 for the mounting of the screw 16 that can be inserted into one insertion slot 642 of the lampshade 64 to lock the lampshade 64 and the coupling socket 61 together.
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Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims. The invention is not to be limited except as by the appended claims.
Two pending new application Ser. Nos. 13/543,490 and 13/549,493 filed on Jul. 15, 2012 are hereby incorporated by reference.