LED down lamp convenient to dissipate heat
By introducing heat sinks and heat conductors into LED downlights and utilizing heat dissipation channels to form convection, the problem of insufficient heat dissipation performance of LED downlights is solved, achieving a highly efficient heat dissipation effect and expanding the product's application range.
Patent Information
- Application Number
- CN202423267129.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing LED downlights have poor heat dissipation performance, which limits the improvement of product power and thus restricts their application range.
An LED downlight structure including a shell, a cylindrical heat sink, a heat-conducting component, and a heat dissipation channel was designed. Convection is formed through the first and second heat dissipation ports and the heat dissipation channel to improve heat dissipation efficiency.
It effectively improves the heat dissipation performance of LED downlights, increases the heat dissipation area, and improves heat dissipation efficiency, making it suitable for high-power applications.
Smart Images
Figure CN223499507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED downlight technology, and in particular to an LED downlight that facilitates heat dissipation. Background Technology
[0002] Recessed lights are recessed lighting fixtures that project light downwards into the ceiling. Their biggest advantage is maintaining the overall unity and perfection of the architectural decoration, ensuring the ceiling's aesthetic harmony isn't disrupted. These concealed fixtures project all light downwards, a direct light distribution method. Different reflectors, lenses, and bulbs can be used to achieve various lighting effects. Recessed lights don't take up much space and can enhance the soft atmosphere of a room. To create a warm feeling, try installing multiple recessed lights to reduce the feeling of confinement. They are commonly used in hotels, homes, and cafes.
[0003] Existing LED downlights generally have low power, which limits their application range. The main reason for limiting bulb wattage in the industry is that the heat dissipation performance is not ideal. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide an LED downlight that facilitates heat dissipation.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:
[0006] An LED downlight designed for easy heat dissipation includes a housing, a mounting fastener disposed on the housing, a cylindrical heat sink fixed inside the housing, a light source assembly disposed in the inner cavity of the heat sink, and a heat-conducting component connecting the heat sink and the light source assembly. The top of the housing is provided with a first heat dissipation vent, and a heat dissipation channel communicating with the first heat dissipation vent is provided between the heat sink and the housing and / or on the heat sink. The lower end of the heat dissipation channel has a second heat dissipation vent.
[0007] In a preferred embodiment of the present invention, the heat dissipation channel includes a plurality of vertical holes disposed on the outer side wall of the radiator and a circumferential groove disposed on the upper part of the outer peripheral wall of the radiator, and all the vertical holes are connected to the circumferential groove.
[0008] In a preferred embodiment of the present invention, the outer shell includes a cylindrical body fixed to the outer side wall of the radiator and a top cover connected to the upper end of the radiator, wherein the first heat dissipation port is a gap reserved between the cylindrical body and the top cover.
[0009] In a preferred embodiment of this utility model, the vertical hole is a through hole, and at least two elastic buckles are provided at intervals on the lower surface of the top cover. Each elastic buckle is inserted into the corresponding vertical hole and fastened in the circumferential groove.
[0010] In a preferred embodiment of this utility model, a light-transmitting plate and a pressure ring located below the light-transmitting plate are provided at the lower port of the inner cavity of the radiator. The pressure ring is detachably connected to the radiator and the upper end of the pressure ring abuts against the light-transmitting plate.
[0011] In a preferred embodiment of this utility model, at least two protrusions are spaced apart on the inner side of the radiator, and at least two slots are provided on the outer side wall of the pressure ring. Each protrusion corresponds to one slot. The slot includes an axial slot and a circumferential slot into which the protrusion can be inserted. The lower end of the axial slot is connected to the circumferential slot.
[0012] In a preferred embodiment of this utility model, the heat-conducting component is a metal block fixed in the inner cavity of the heat sink, and the light source assembly includes a lamp plate that is attached to the lower surface of the metal block and LED beads disposed on the lamp plate.
[0013] The beneficial effects of this utility model are: the heat generated by the light source component can be directly conducted to the heat sink, and convection can be formed through the first heat dissipation port, the heat dissipation channel and the second heat dissipation port. The heat on the heat sink is carried away by the convective air, resulting in better heat dissipation efficiency. Attached Figure Description
[0014] Figure 1 This is a perspective view of the present invention;
[0015] Figure 2 This is a cross-sectional view of the present invention;
[0016] Figure 3 This is an exploded view of the present invention;
[0017] Figure 4 This is an exploded view of the pressure ring and the heat sink. Detailed Implementation
[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly. Furthermore, descriptions involving "preferred," "second-preferred," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "preferred" or "second-preferred" may explicitly or implicitly include at least one of those features.
[0020] Reference Figures 1 to 4 This utility model proposes an LED downlight that facilitates heat dissipation, including a housing 1, a mounting fastener 2 disposed on the housing 1, a cylindrical heat sink 3 fixed inside the housing 1, a light source assembly disposed in the inner cavity of the heat sink 3, and a heat-conducting component connecting the heat sink 3 and the light source assembly. The top of the housing 1 is provided with a first heat dissipation port 101, and a heat dissipation channel communicating with the first heat dissipation port 101 is provided between the heat sink 3 and the housing 1 and / or on the heat sink 3. The lower end of the heat dissipation channel has a second heat dissipation port.
[0021] The specific structure and installation structure of the mounting fastener 2 are existing technologies, which will not be described in detail in this article.
[0022] With this design, the heat generated by the light source component can be directly conducted to the heat sink 3. Through the first heat dissipation port 101, the heat dissipation channel, and the second heat dissipation port, convection can be formed, and the heat on the heat sink 3 can be carried away by the convective air, resulting in better heat dissipation efficiency.
[0023] In a preferred embodiment of this utility model, the heat dissipation channel includes a plurality of vertical holes 31 disposed on the outer side wall of the radiator 3, and a circumferential groove 32 disposed on the upper part of the outer peripheral wall of the radiator 3. The number of vertical holes 31 can be 10, 20, 30, etc., and all vertical holes 31 communicate with the circumferential groove 32. The outer shell 1 includes a cylindrical body 11 fixed to the outer side wall of the radiator 3, and a top cover 12 connected to the upper end of the radiator 3. The lower end of the cylindrical body 11 has a horizontal flange, and the first heat dissipation port 101 is a gap reserved between the cylindrical body 11 and the top cover 12. This gap is annular, preferably circular. This design can significantly increase the surface area of the radiator 3 and further improve the heat dissipation performance.
[0024] Reference Figure 2 and Figure 3 The cylinder 11 is screwed or welded to the radiator 3. The vertical hole 31 is a through hole. The lower surface of the top cover 12 is provided with at least two elastic clips 121 at intervals, such as two, three, or four. Each elastic clip 121 is inserted into the corresponding vertical hole 31 and engaged in the circumferential groove 32. In this design, the circumferential groove 32 and the vertical hole can be used for both heat dissipation and installation of the elastic clips 121 on the top cover 12, achieving two goals at once and simplifying the structure.
[0025] In some embodiments of this utility model, the heat dissipation channel can also adopt other structural forms. For example, a heat dissipation gap can be directly set between the radiator 3 and the cylinder 11, and the heat dissipation gap serves as a heat dissipation channel.
[0026] Reference Figure 2 and Figure 3The heat-conducting component is a metal block 6 fixed in the inner cavity of the heat sink 3. The metal block 6 is welded or screwed to the heat sink 3. The light source assembly includes a lamp plate 71 that is attached to the lower surface of the metal block 6 and LED beads 72 disposed on the lamp plate 71.
[0027] Reference Figure 2 and Figure 4 A light-transmitting plate 4 and a pressure ring 5 located below the light-transmitting plate 4 are provided at the lower port of the inner cavity of the heat sink 3. The pressure ring 5 is detachably connected to the heat sink 3 and the upper end of the pressure ring 5 abuts against the light-transmitting plate 4.
[0028] Preferably, at least two protrusions 35 are spaced apart on the inner side of the radiator 3, and at least two slots are provided on the outer side wall of the pressure ring 5. Each protrusion 35 corresponds to one slot. The slot includes an axial slot 501 and a circumferential slot 502 into which the protrusion 35 can be inserted. The lower end of the axial slot 501 communicates with the circumferential slot 502. This design facilitates the installation and removal of the pressure ring 5. The installation method of the pressure ring 5 is as follows: First, align the upper end of the axial slot 501 with the corresponding protrusion 35. Then, insert the pressure ring 5 upwards into the inner cavity of the radiator 3, so that the protrusion 35 is inserted into the corresponding axial slot 501. After the pressure ring 5 is pushed upwards into place, rotate the pressure ring 5 so that the protrusion 35 rotates into the circumferential slot 502. The installation of the pressure ring 5 is thus completed, which is convenient and quick. The method of removing the pressure ring 5 is exactly the reverse of the above installation process, and the whole process is also very convenient and quick.
[0029] When the light source assembly needs to be inspected or replaced, the pressure ring 5 can be removed, the light-transmitting plate 4 can be taken off, and then the light source assembly can be inspected or replaced.
[0030] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. An LED downlight with convenient heat dissipation, characterized in that, The device includes a housing (1), a mounting fastener (2) disposed on the housing (1), a cylindrical radiator (3) fixed inside the housing (1), a light source assembly disposed in the inner cavity of the radiator (3), and a heat-conducting component connecting the radiator (3) and the light source assembly. The top of the housing (1) is provided with a first heat dissipation port (101), and a heat dissipation channel communicating with the first heat dissipation port (101) is provided between the radiator (3) and the housing (1) and / or on the radiator (3). The lower end of the heat dissipation channel has a second heat dissipation port.
2. The LED downlight with convenient heat dissipation according to claim 1, characterized in that, The heat dissipation channel includes a plurality of vertical holes (31) disposed on the outer side wall of the radiator (3) and a circumferential groove (32) disposed on the upper part of the outer peripheral wall of the radiator (3), and all the vertical holes (31) are connected to the circumferential groove (32).
3. The LED downlight with convenient heat dissipation according to claim 2, characterized in that, The outer casing (1) includes a cylindrical body (11) fixed to the outer side wall of the radiator (3) and a top cover (12) connected to the upper end of the radiator (3). The first heat dissipation port (101) is a gap reserved between the cylindrical body (11) and the top cover (12).
4. The LED downlight with convenient heat dissipation according to claim 3, characterized in that, The vertical hole (31) is a through hole, and at least two elastic buckles (121) are provided at intervals on the lower surface of the top cover (12). Each elastic buckle (121) is inserted into the corresponding vertical hole (31) and fastened in the circumferential groove (32).
5. The LED downlight with convenient heat dissipation according to claim 1, characterized in that, A light-transmitting plate (4) and a pressure ring (5) located below the light-transmitting plate (4) are provided at the lower port of the inner cavity of the radiator (3). The pressure ring (5) is detachably connected to the radiator (3) and the upper end of the pressure ring (5) abuts against the light-transmitting plate (4).
6. The LED downlight with convenient heat dissipation according to claim 5, characterized in that, At least two protrusions (35) are spaced apart on the inner side of the radiator (3), and at least two slots are provided on the outer side wall of the pressure ring (5). Each protrusion (35) corresponds to one slot. The slot includes an axial slot (501) and a circumferential slot (502) into which the protrusion (35) can be inserted. The lower end of the axial slot (501) is connected to the circumferential slot (502).
7. The LED downlight with convenient heat dissipation according to claim 1, characterized in that, The heat-conducting component is a metal block (6) fixed in the inner cavity of the heat sink (3), and the light source assembly includes a lamp plate (71) that is attached to the lower surface of the metal block (6) and LED beads (72) disposed on the lamp plate (71).