Patent Application
20170370558
This present application claims benefit of the Chinese Application, CN 201610470769.9, filed on Jun. 22, 2016.
The present application relates to a lighting device, and more particularly to an assembling mechanism for LED downlight.
Light emitting diode (LED) is growing in popularity due to decreasing costs and long life compared to incandescent lighting and fluorescent lighting. Recently, a number of LED lighting apparatuses have been designed to replace the halogen apparatus, as well as other traditional incandescent or fluorescence lighting apparatuses. In some places such as exhibition halls, jewelry stores, museums, supermarkets, and some home lighting, such as large villas, will use a lot of LED strip lamps. Moreover, in addition to lighting equipments, such as general traffic lights, billboards, motor-lights, etc., also use light-emitting diodes as light source. As described above, for the light-emitting diodes as a light source, the advantage is power saving, and the greater brightness. Therefore, the use has been gradually common. In particular, with the integration of multiple LED chips into a high-power light source, such as COB (Chip on Board), LED lighting has entered a development stage of much smaller size, more power, and better converging.
However, because of the smaller size, it is difficult to fix or assemble the various components of LED lamps, especially LED downlights, in the default installation location. In these LED downlights, it increases a variety of parts, such as reflective cups, seals, anti-glare and other parts, and a variety of functions, such as a rotation function, light shielding efficiency, and waterproof features, and so on, due to the improvement of lighting effects. As a result, it makes the assembly more and more complex and is more and more difficult to fix or assemble the various parts. Moreover, the various parts of many downlights at the factory are fixed between each other by the detecting thereof. However, after long-distance transport, many transshipment, and distribution, the various parts are loose, or even failure when these lights reach the hands of the end users.
Therefore, it is necessary to provide an assembling mechanism for LED downlight which makes it possible to solve the above problems.
Many aspects of the embodiments can be better understood with references to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout two views.
The present application is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings. It should be noted that references to “an” or “one” embodiment in this application are not necessarily to the same embodiment, and such references mean at least one.
Referring to
The cylindrical body 10 may be a circular cylindrical, or otherwise of a cylindrical shape, such as a square or the like. In the present embodiment, the cylindrical body 10 is a circular cylindrical. The cylindrical body 10 is configured for mounting other components, such as the light source module, the heat-dissipation module, the rotating module, and the cover 30. In order to ensure the strength of the cylindrical body 10, it is usually made of metal material, such as aluminum alloy, or the like. Two platforms 11 are provided on the cylindrical body 10 and are stamped or compression molded. A step 12 may be further provided on the cylindrical body 10 and is configured for arranging the sealing strip 40. A slot 13 is further opened on the inner side of the cylindrical body 10. The specific structure and functions of the platform 11, the step 12 and the slot 13 will be described separately as below.
As shown in
The cover 30 is assembled onto the cylindrical body 10. In the present embodiment, since the cylindrical body 10 has a circular cylindrical, the cover 30 has a shape of circle. If the cylindrical body 10 is not circular, it is also possible to achieve the purpose of rotation as long as the cover 30 has a circular portion. The cover 30 includes a body 34, at least one clamping gap 31, at least one stop bar 32 disposed on an outer side of the clamping gap 31, and at least one barb 33 provided on the body 34. The cover 30 may be injection-molded from a material such as plastic as it has a complicate structure. The body 34 has a circular frame and further provides some anti-glare device.
As shown in
The stop bar 32 extends toward the cylindrical body 10 along an axial direction of cylindrical body 10. Due to the action of the overhead hook 221 provided on the reed 22, the stop bar 32 press the overhead hook 221 so that the catching portion 23 can pass over the overhead hook 221 and is received in the clamping gap 31 during the catching portion 23 is inserted into the clamping gap 31. However, when the catching portion 23 is rotated in the reverse direction by an external force, it is difficult to press the overhead hook again. As a result, the overhead hook 221 can prevent the stop bar 32 from rotating after the assembling is completed, which will results in a loose.
The barb 33 extends toward the cylindrical body 10 along the axial direction of the cylindrical body 10. When the cover 30 is assembled onto the end of the cylindrical body 10, the barb 33 will inserted into the inside of the cylindrical body 10 and is hooked into the slot 13 of the cylindrical body 1 to further prevent the cylindrical cover 30 from moving in the axial direction of the cylindrical body 10. Therefore, the hook of the barb 33 will project the body 34 of the cover 30 and a maximum diameter of the hook of the barb 33 is equal to the diameter of the slot 13.
The sealing strip 40 is disposed on the step 12 of the cylindrical body 10 and may be made of flexible material. When the cover 30 is rotated, the sealing strip 40 will be deformed under the extrusion of the glass window 50 so that it can act as a waterproofing member. In addition, since the sealing strip 40 is deformed under extrusion and has a restoring force, the restoring force is transmitted between the cover 30 and the spring 20, and the barb 33 of the cover 30 and the slot 13 of the cylindrical body 10 so as to further enhance the coupling force between the cover 30 and the cylindrical body 10.
The glass window 50 is clamped between the sealing strip 40 and the cover 30 and is used as an exit window of light and to protect the components received in the cylindrical body 10.
Since the assembling mechanism 100 for LED downlight has the clamping gap 31 of the cover 30 and the spring 20 disposed on the cylindrical body 10, and the catching portion 23 is provided on the spring 20, the spring 20 can prevent the cover 30 loosing along the rotation direction of the cylindrical body 10 after the catching portion 23 is inserted into the clamping gap 31. As a result, the relative position between the various parts can be fixed so as to prevent the LED downlight from loosing, or even failing in the transport, distribution, and other sales.
While the disclosure has been described by way of example and in terms of exemplary embodiment, it is to be understood that the disclosure is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
| Number | Date | Country | Kind |
|---|---|---|---|
| CN201610470769.9 | Jun 2016 | CN | national |
