Down lamp

Abstract

The utility model provides a down lamp. The down lamp comprises a face ring, a light-emitting part, a light guide column, a reflection cup, glass and a radiator. Wherein a cavity is formed in the radiator, and a boss is arranged at the bottom of the cavity of the radiator; the light-emitting part is fixed on a boss at the bottom of the cavity; the light guide column covers the light emitting part; the light guide column is sleeved with the reflection cup. The glass is arranged at the top of the cavity of the radiator; and the surface ring is fixed on the radiator and tightly presses the glass. According to the down lamp, the boss is arranged at the bottom of the cavity of the radiator, and the light-emitting part is mounted on the boss, so that the situation that a screw column is arranged on the back face of the radiator to fix the light-emitting part, and fasteners such as the screw column cannot be seen from the back face of the radiator is avoided, and the overall attractiveness of the down lamp is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of lighting, in particular to a downlight. Background Art

[0002] With the continuous development of lighting technology, downlights, as a common lighting equipment, have been widely used in lighting in homes, businesses and public spaces. Downlights are popular among consumers for their compact structure, uniform light, energy saving and environmental protection. However, in the design and manufacturing process of traditional downlights, the screw posts on the back of the radiator (or housing) used to fix the light-emitting part are usually exposed. The protruding screw posts on the back of the radiator appear particularly abrupt, reducing the aesthetics of the downlight. Utility Model Content

[0003] The utility model aims to provide a downlight to solve the technical problem that the screw posts for fixing the light-emitting part of the heat sink of the traditional downlight are usually exposed to the outside, thereby reducing the aesthetics of the downlight.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a downlight, the downlight comprising:

[0005] A radiator, wherein a chamber is provided in the radiator, and a boss is provided at the bottom of the chamber of the radiator;

[0006] A light emitting part, the light emitting part is fixed on a boss at the bottom of the chamber;

[0007] A light guide column, wherein the light guide column cover is disposed on the light emitting portion;

[0008] A reflective cup, wherein the reflective cup is sleeved on the outside of the light guide column;

[0009] Glass, the glass is arranged on the top of the chamber of the radiator;

[0010] A face ring is fixed on the radiator and presses the glass.

[0011] In one embodiment, the light emitting portion includes a COB and a bracket, and the bracket fixes the COB to a boss at the bottom of the chamber through a screw.

[0012] In one embodiment, the boss is provided with a square screw hole for connecting the bracket.

[0013] In one embodiment, a power cord fixing portion is provided inside the cavity of the heat sink, and the power cord fixing portion includes a wire pressing plate and a fixing seat, the fixing seat is located at the bottom of the cavity, and the wire pressing plate is connected to the fixing seat through a screw.

[0014] In one embodiment, the panel and the radiator are fixed by threaded connection, and a plurality of protrusions are arranged on the top surface of the threaded connection hole of the radiator.

[0015] In one embodiment, the downlight further includes a rubber ring, and the rubber ring is arranged between the face ring and the glass.

[0016] In one embodiment, the downlight further comprises a spring clip, and the spring clip is arranged on the outer surface of the heat sink.

[0017] One or more of the above technical solutions in the embodiments of the present utility model have at least the following technical effects or advantages:

[0018] The downlight provided by the embodiment of the utility model is provided with a boss at the bottom of the chamber of the heat sink and the light-emitting part is mounted on the boss, thereby eliminating the need to provide screws on the back of the heat sink to fix the light-emitting part, so that no fasteners such as screws can be seen on the back of the heat sink, which significantly improves the overall aesthetics of the downlight. This not only meets the consumer's demand for aesthetics, but also improves the competitiveness of the downlight in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 An exploded view of a downlight provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the structure of the front side of the radiator provided by the embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the structure of the side surface of the radiator provided by the embodiment of the utility model;

[0023] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0024] Figure 5 A schematic diagram of the structure of the back of a downlight provided by an embodiment of the utility model;

[0025] Figure 6 A schematic structural diagram of the side of a downlight provided in an embodiment of the utility model.

[0026] The respective reference numerals are as follows:

[0027] 1. Radiator; 2. Light-emitting part; 3. Light guide column; 4. Reflector cup; 5. Glass; 6. Face ring; 8. Rubber ring; 9. Spring clip; 10. Power supply; 11. Boss; 12. Square screw hole; 13. Power cord hole; 14. Flange; 15. Threaded connection hole; 16. Bump; 21. COB; 22. Bracket; 71. Wire pressing plate; 72. Fixing seat; 101. Power cord. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1 to Figure 2The embodiment of the present application provides a downlight, including a face ring 6, a light-emitting part 2, a light-guiding column 3, a reflective cup 4, a glass 5, and a heat sink 1. The heat sink 1 is provided with a chamber, and a boss 11 is provided at the bottom of the chamber of the heat sink 1; the light-emitting part 2 is fixed on the boss 11 at the bottom of the chamber; the light-guiding column 3 is covered on the light-emitting part 2; the reflective cup 4 is sleeved on the outside of the light-guiding column 3; the glass 5 is provided at the top of the chamber of the heat sink 1; the face ring 6 is fixed on the heat sink 1 and presses the glass 5.

[0033] The downlight provided in this embodiment provides a boss 11 at the bottom of the chamber of the heat sink 1 and mounts the light-emitting part 2 on the boss 11, thereby eliminating the need to provide screws on the back of the heat sink 1 to fix the light-emitting part 2, so that no screws or other fasteners can be seen on the back of the heat sink 1, which significantly improves the overall aesthetics of the downlight. This not only meets consumers' demand for aesthetics, but also improves the competitiveness of the downlight in the market.

[0034] In one embodiment, the light emitting part 2 includes a COB 21 (chip on board package) and a bracket 22, and the bracket 22 fixes the COB 21 to the boss 11 at the bottom of the chamber through a screw. Optionally, a square screw hole 12 for connecting the bracket 22 is provided on the boss 11, and the screw can be a self-tapping screw, thereby eliminating the thread structure in the square screw hole 12, simplifying the structure of the heat sink 1, eliminating the process of tapping the square screw hole 12, and thus reducing the production and processing cost.

[0035] In one embodiment, a power cord fixing part is provided inside the chamber of the radiator 1, and the power cord fixing part includes a wire pressing plate 71 and a fixing seat 72. The fixing seat 72 is located at the bottom of the chamber, and the wire pressing plate 71 is connected to the fixing seat 72 by a screw. The function of the power cord is to electrically connect the power supply 10 with the light-emitting part 2. For this purpose, a power cord hole is provided on the radiator 1. The power cord passes through the power cord hole and enters the chamber of the radiator 1 to connect the light-emitting part 2. In order to fix the power cord, a power cord fixing part is provided inside the chamber of the radiator 1, and the power cord is fixed to the fixing seat 72 by using the wire pressing plate 71. By hiding the power cord fixing part inside the radiator 1, the appearance of the downlight is made more beautiful.

[0036] Optionally, an arc-shaped groove may be opened in the middle of the wire pressing plate 71 and the fixing seat 72, and the arc-shaped groove may be used to press the power cord, thereby better fixing the power cord.

[0037] like Figure 4As shown, in one embodiment, the panel and the radiator 1 are fixed by threaded connection, and the top surface of the threaded hole 15 of the radiator 1 is provided with a plurality of protrusions 16. Since the bottom surface of the screw is a plane, if the top surface of the threaded hole 15 is designed to be a plane, then the contact surface between the screw and the top surface of the threaded hole 15 is a plane, thereby making the friction area between the screw and the top surface of the threaded hole 15 larger, and the surface of the radiator 1 is sprayed with a coating, thereby easily causing the coating near the threaded hole 15 to be damaged and even fall off. For this reason, in this embodiment, a plurality of protrusions 16 (specifically, four protrusions 16 arranged around the threaded hole 15) are designed on the top surface of the threaded hole 15, so that the screw only contacts the protrusions 16 (the head of the screw is pressed and fitted onto the protrusions 16), and does not directly contact the top surface of the threaded hole 15, thereby preventing the coating on the top surface of the threaded hole 15 from being damaged when the screw is repeatedly disassembled while the screw can be locked.

[0038] In one embodiment, the downlight further includes a rubber ring 8, which is disposed between the face ring 6 and the glass 5. By disposing the rubber ring 8 between the face ring 6 and the glass 5, the gap between the face ring 6 and the glass 5 is closed by the rubber ring 8, so as to prevent external dust and other impurities from entering the interior of the downlight through the gap between the face ring 6 and the glass 5.

[0039] Optionally, a flange 14 can be set on the end face where the radiator 1 cooperates with the face ring 6, and a slot can be set at the corresponding matching position of the face ring 6. When the radiator 1 and the face ring 6 are assembled, the flange 14 on the radiator 1 is inserted into the slot of the face ring 6, and then the two are locked using a threaded part, thereby making the connection between the two more secure.

[0040] In one embodiment, the downlight further comprises a spring clip 9, which is arranged on the outer surface of the heat sink 1. By arranging the spring clip 9 on the outer surface of the heat sink 1, the downlight can be easily installed by the spring clip 9.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A downlight, characterized in that: The downlight comprises: A radiator, wherein a chamber is provided in the radiator, and a boss is provided at the bottom of the chamber of the radiator; A light emitting part, the light emitting part is fixed on a boss at the bottom of the chamber; A light guide column, wherein the light guide column cover is disposed on the light emitting portion; A reflective cup, wherein the reflective cup is sleeved on the outside of the light guide column; Glass, the glass is arranged on the top of the chamber of the radiator; A face ring is fixed on the radiator and presses the glass.

2. A downlight according to claim 1, characterized in that: The light emitting part includes a COB and a bracket, and the bracket fixes the COB on a boss at the bottom of the chamber through a screw.

3. A downlight according to claim 2, characterized in that: The boss is provided with a square screw hole for connecting the bracket.

4. The downlight according to claim 1, characterized in that: A power line fixing part is arranged inside the cavity of the radiator. The power line fixing part comprises a wire pressing plate and a fixing seat. The fixing seat is located at the bottom of the cavity. The wire pressing plate is connected to the fixing seat through a screw.

5. The downlight according to claim 1, characterized in that: The face ring is fixed to the radiator by means of threaded connection, and a plurality of protrusions are arranged on the top surface of the threaded connection hole of the radiator.

6. The downlight according to claim 1, characterized in that: The downlight further comprises a rubber ring, and the rubber ring is arranged between the face ring and the glass.

7. The downlight according to claim 1, characterized in that: The downlight further comprises a spring clip, and the spring clip is arranged on the outer surface of the heat sink.

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