COB light-emitting spotlight cylinder lamp structure

Abstract

The utility model discloses a COB light-emitting spotlight cylinder lamp structure, including COB (Chip On Board, board chip package) lamp board, diffusion plate, heat dissipation seat and gland, the gland is connected with heat dissipation seat, the gland is pressed on COB lamp board and makes the COB lamp board with heat dissipation seat and abuts, the diffusion plate is installed on the gland, and is opposite to the arrangement with COB lamp board, the gland is equipped with the light hole, the light that COB lamp board sent can be shot from the light hole through diffusion plate. The utility model discloses using COB lamp board, and its light illumination uniformity is good, and the heat dissipation effect is good, and still set up diffusion plate, spread the light that COB lamp board sent to improve the light area, avoid light excessive concentration, can effectively reduce the generation of glare, simultaneously, COB lamp board and heat dissipation seat direct contact, and the heat that COB lamp board radiates can be effectively discharged through heat dissipation seat, further reduce the probability of the utility model work instability.

Description

Technical Field

[0001] This utility model relates to the field of downlight design, and in particular to a COB light-emitting spotlight structure. Background Technology

[0002] Downlights are a common type of lighting fixture, usually installed in the ceiling or wall, casting light downwards or at an angle to create localized lighting. Downlights are widely used in modern homes, shopping malls, offices, and other places.

[0003] Downlights typically require a certain degree of focusing, but most common downlights now use SMD (Surface Mount Devices) panels, which have poor light uniformity and cause the light to be too concentrated after focusing, easily resulting in glare. In addition, SMD panels have poor heat dissipation and are prone to affecting their reliability due to excessive temperature. Utility Model Content

[0004] The purpose of this invention is to provide a COB light-emitting spotlight structure that can solve one or more of the above-mentioned problems.

[0005] According to one aspect of this utility model, a COB (ChipOn Board) light-emitting spotlight structure is provided, comprising a COB (ChipOn Board) light board, a diffuser plate, a heat sink, and a pressure cap.

[0006] The pressure cap is connected to the heat sink, and the pressure cap presses against the COB lamp plate, causing the COB lamp plate to abut against the heat sink.

[0007] The diffuser plate is mounted on the cover and positioned opposite the COB lamp plate.

[0008] The cover is provided with a light-emitting hole, and the light energy emitted by the COB lamp board is emitted from the light-emitting hole through the diffuser plate.

[0009] The beneficial effects of this utility model are as follows: This utility model uses a COB lamp board for light emission, and the light-emitting holes on the cover can achieve a certain degree of light focusing. Compared with SMD lamp boards, COB lamp boards have better light uniformity and better heat dissipation. In addition, a diffuser plate is set to diffuse the light emitted by the COB lamp board, thereby increasing the illumination area, avoiding excessive light concentration, and effectively reducing glare. At the same time, the COB lamp board is in direct contact with the heat sink, so the heat dissipated by the COB lamp board can be effectively discharged through the heat sink, further reducing the probability of instability caused by excessive temperature and improving the reliability of this utility model.

[0010] In some embodiments, the heat sink is provided with a receiving groove, the pressure cap is provided with a boss, the boss extends into the receiving groove, and the COB lamp board is located in the receiving groove. The receiving groove facilitates the placement of the COB lamp board, and the design of the receiving groove and the boss increases the contact area between the heat sink and the pressure cap, thereby improving the connection reliability between the heat sink and the pressure cap.

[0011] In some embodiments, the heat sink has a protrusion with a groove inside, the groove communicating with a receiving slot. The groove facilitates the placement of electronic components on the COB lamp board.

[0012] In some embodiments, the protrusion has a through hole that communicates with the groove. The through hole facilitates the passage of wires, making it easy to connect the COB lamp board to the wires, thereby facilitating the electrical connection of the COB lamp board to an external circuit via the wires.

[0013] In some embodiments, the present invention further includes a spring clip. The boss has a first notch, and the heat sink has a second notch. The second notch and the first notch are connected. A support strip is provided on the second notch, and the spring clip is mounted on the support strip. By leaving the first and second notches, space can be provided for the spring clip to rotate, thereby facilitating the adjustment of the spring clip's installation position.

[0014] In some embodiments, the sidewall of the light-emitting aperture is inclined, and the sidewall is inclined outward in a direction away from the center of the light-emitting aperture. This can effectively increase the illumination area of ​​the light emitted from the light-emitting aperture.

[0015] In some embodiments, the present invention also includes screws, wherein the heat sink has a first screw hole, the pressure cap has a second screw hole, and the screws are disposed in the first and second screw holes. This facilitates the effective connection between the pressure cap and the heat sink. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the COB light-emitting spotlight structure according to one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the COB light-emitting spotlight structure according to one embodiment of the present invention.

[0018] Figure 3 This is an exploded view of the COB light-emitting spotlight structure according to one embodiment of the present invention.

[0019] Figure 4 This is a cross-sectional view of a COB light-emitting spotlight structure according to one embodiment of the present invention.

[0020] In the diagram: 1. COB lamp board, 2. Diffuser plate, 3. Heat sink, 4. Cover, 5. Screw, 6. Spring clip, 31. Receiving cavity, 32. First screw hole, 33. Protrusion, 331. Groove, 332. Through hole, 34. Second notch, 341. Support strip, 41. Boss, 42. Second screw hole, 43. Light emission hole, 411. First notch. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] refer to Figures 1-4 The present invention relates to a COB light-emitting spotlight structure, comprising a COB light plate 1, a diffuser plate 2, a heat sink 3, and a pressure cover 4.

[0023] The heat sink 3 is preferably a metal base. The heat sink 3 has a receiving cavity 31 in the middle, the COB lamp plate 1 is embedded in the receiving cavity 31, and a first screw hole 32 is provided at the bottom of the heat sink 3. There can be multiple first screw holes 32. In this embodiment, four first screw holes 32 are preferred.

[0024] The pressure cap 4 is provided with a boss 41, and the boss 41 is provided with a second screw hole 42. There can be multiple second screw holes 42, and their number is equivalent to that of the first screw holes 32. That is, in this embodiment, the second screw holes 42 are preferably four. The boss 41 extends into the receiving cavity 31, and the multiple second screw holes 42 and the multiple first screw holes 32 correspond to each other one by one.

[0025] This COB luminous spotlight structure also includes screws 5. There can be multiple screws 5. In this embodiment, four screws 5 are preferred. The four screws 5 are respectively disposed on four sets of corresponding first screw holes 42 and second screw holes 32, and are connected to the corresponding screw holes by thread engagement, so that the pressure cover 4 and the heat sink 3 are fixedly connected.

[0026] After connection, the pressure cap 4 presses down on the COB lamp plate 1, causing the COB lamp plate 1 to abut against the heat sink 3.

[0027] The diffuser plate 2 is fixedly installed on the cover 4 by adhesive bonding. After the cover 4 is connected to the heat sink 3, the diffuser plate 2 can be located in the accommodating cavity 31, and the diffuser plate 2 can be set opposite to the COB lamp plate 1.

[0028] The heat sink 3 has a protrusion 33 on the back and a groove 331 inside the protrusion 33. The groove 331 is connected to the receiving groove 31. The groove 331 can be used to receive electronic components on the COB lamp board 1. The protrusion 33 also has a through hole 332 in the middle. The through hole 332 is connected to the groove 331. The through hole 332 can facilitate the passage of wires.

[0029] The pressure cover 4 is provided with a light emission hole 43. After the pressure cover 4 and the heat sink 3 are connected, both parts of the COB lamp plate 1 and the diffuser plate 2 can be exposed through the light emission hole 43, so that the light energy emitted by the COB lamp plate 1 can be emitted through the diffuser plate 2 and out of the light emission hole 43. The sidewall of the light emission hole 43 is inclined, and the sidewall is inclined outward in a direction away from the center of the light emission hole 43.

[0030] This COB spotlight structure also includes spring clips 6. In this embodiment, two spring clips 6 are preferably arranged symmetrically on the heat sink 3. Each spring clip 6 is specifically configured such that the boss 41 has a first notch 411, and the heat sink 3 has a second notch 34. The second notch 34 is connected to the first notch 411, and a support strip 341 is provided on the second notch 34. The spring clip 6 may include a torsion spring and a clamping block. The clamping block is connected to the torsion spring, the torsion spring is fitted onto the support strip 341, and the torsion spring has an extension end, which can be fixed to the pressure cover 4 by snap-fit.

[0031] During installation, this COB spotlight structure can be clamped to an external connecting block or screw structure by spring clip 6, thus effectively fixing the structure. The COB lamp board 1 can be connected to wires, which can pass through the through hole 332 and connect to the external circuit, so that the COB lamp board 1 can be electrically connected to the external circuit.

[0032] During operation, the COB lamp panel 1 emits light, which is then emitted through the light-emitting hole 43 after passing through the diffuser plate 2, providing illumination. The light-emitting hole 43 on the cover 4 can achieve a certain degree of light focusing. Due to the use of the COB lamp panel 1, this downlight structure offers better light uniformity and heat dissipation compared to SMD lamp panels. The diffuser plate 2 further diffuses the light emitted by the COB lamp panel 1, increasing the illumination area and preventing excessive light concentration, effectively reducing glare. Simultaneously, the direct contact between the COB lamp panel 1 and the heat sink 3 ensures that the heat dissipated from the COB lamp panel 1 is effectively dissipated through the heat sink 3, further reducing the probability of instability caused by overheating and improving the reliability of the downlight structure. Furthermore, the use of the COB lamp panel 1 in this downlight offers better light uniformity than SMD lamp panels and requires fewer external components, effectively reducing the size requirements of the downlight and achieving an ultra-thin configuration.

[0033] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A COB light-emitting spotlight structure, characterized in that, Includes COB lamp board, diffuser plate, heat sink, and pressure cap. The pressure cap is connected to the heat sink, and the pressure cap presses against the COB lamp plate, causing the COB lamp plate to abut against the heat sink. The diffuser plate is mounted on the cover and positioned opposite the COB lamp plate. The cover is provided with a light-emitting hole, and the light energy emitted by the COB lamp board is emitted from the light-emitting hole through the diffuser plate.

2. The COB light spotlight tube lamp structure according to claim 1, characterized in that, The heat sink is provided with a receiving groove, the pressure cover is provided with a boss, the boss extends into the receiving groove, and the COB lamp board is located in the receiving groove.

3. The COB light spotlight structure according to claim 2, wherein, The heat sink has a protrusion, and the protrusion has a groove, which is connected to the receiving groove.

4. The COB light spotlight cylinder lamp structure according to claim 3, characterized in that, The protrusion has a through hole, which is connected to the groove.

5. The COB light spotlight structure according to claim 2, wherein, The device includes a spring clip, the boss has a first notch, the heat sink has a second notch, the second notch and the first notch are connected, the second notch has a support bar, and the spring clip is mounted on the support bar.

6. The COB light spotlight structure according to claim 1, wherein, The sidewall of the light-emitting aperture is inclined, and the sidewall is inclined outward in a direction away from the center of the light-emitting aperture.

7. The COB light spotlight structure according to claim 1, wherein, Includes screws, the heat sink has a first screw hole, the pressure cap has a second screw hole, and the screws are disposed on the first screw hole and the second screw hole.

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