Lamp
By using a heat-dissipating aluminum plate connected to the housing in the lamp and utilizing thermally conductive silicone to transfer heat, the heat dissipation area is expanded, which solves the problem of heat accumulation in the lamp, improves heat dissipation efficiency and service life, reduces weight and cost, and enhances luminous flux.
Patent Information
- Application Number
- CN202423189839.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The heat generated by the light source of the lamp is not effectively dissipated, resulting in a reduced lifespan, and the heavy weight of the metal chassis limits the design of the lamp.
The heat dissipation aluminum plate is connected to the housing, and the heat from the light source is transferred through a flexible circuit board to expand the heat dissipation area. Thermally conductive silicone is used to accelerate heat transfer, and the aluminum material is combined to reduce weight and insulation requirements.
It improves the heat dissipation efficiency of the lamps, extends the lifespan of the light source, reduces the weight and manufacturing cost of the lamps, and allows the use of higher power light sources, thus solving the problem of insufficient luminous flux.
Smart Images
Figure CN223622857U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lighting technology, and more particularly to a luminaire. Background Technology
[0002] Light sources generate heat when they emit light, and if this heat is not properly dissipated, the lifespan of the light fixture will be reduced. Related technologies use metal chassis for auxiliary heat dissipation; however, metal chassis are heavy and impose significant limitations on the design of the light fixture. Utility Model Content
[0003] To address the aforementioned technical problems, this application provides a lamp fixture that improves the heat dissipation capacity of the lamp fixture.
[0004] This application provides a lamp, comprising: a housing, a heat-dissipating aluminum plate, a flexible circuit board, and a light source. The housing includes a mounting portion and a fixing portion. The mounting portion is annular, with one end connected to the fixing portion along the height of the lamp, and the other end extending away from the fixing portion, forming a mounting cavity with the fixing portion. The heat-dissipating aluminum plate is disposed within the mounting cavity, and includes a first heat-dissipating portion and a second heat-dissipating portion. The first heat-dissipating portion is connected to the mounting portion, and one end of the second heat-dissipating portion is connected to the first heat-dissipating portion, while the other end extends away from the mounting portion and abuts against the fixing portion. The flexible circuit board is disposed on the side of the heat-dissipating aluminum plate away from the housing. The light source is disposed on the side of the flexible circuit board away from the housing.
[0005] According to the embodiments of this application, the lamp fixture connects a first heat dissipation part of a heat-dissipating aluminum plate to a mounting part, a second heat dissipation part of the heat-dissipating aluminum plate to a fixing part, and connects a flexible circuit board connected to the light source to the first heat dissipation part. The heat generated by the light source during operation can be transferred to the first heat dissipation part, which in turn can transfer heat to the mounting part and the second heat dissipation part. The second heat dissipation part can then transfer heat to the fixing part, thereby increasing the heat dissipation area and capacity of the lamp fixture, which helps to improve its lifespan. Since the heat dissipation aluminum plate is made of aluminum, it is lightweight, which helps to reduce the weight of the lamp fixture. Simultaneously, the smaller area of the heat dissipation aluminum plate reduces the insulation requirements of the lamp fixture, thus helping to lower its manufacturing cost. Furthermore, because the heat dissipation capacity of the lamp fixture is improved, a more powerful light source can be used, thereby solving the problem of insufficient luminous flux.
[0006] In one possible implementation, the luminaire further includes a first thermally conductive silicone sealant, through which the housing and the heat dissipation aluminum plate are connected.
[0007] In one possible implementation, the lamp further includes a second thermally conductive silicone, through which the flexible circuit board is connected to the heat dissipation aluminum plate.
[0008] In one possible implementation, the width of the first heat dissipation portion is greater than or equal to 12 mm in the height direction of the mounting portion.
[0009] In one possible implementation, the width of the second heat sink is greater than or equal to 12 mm.
[0010] In one possible implementation, the first heat dissipation part and the second heat dissipation part are integrally formed.
[0011] In one possible implementation, the second heat dissipation part has a plurality of heat dissipation protrusions on the side facing the mounting cavity, and the plurality of heat dissipation protrusions are spaced apart in the extending direction of the second heat dissipation part.
[0012] In one possible implementation, the orthographic projection of the heat dissipation protrusion onto the plane containing the first heat dissipation portion lies outside the outline of the light source.
[0013] In one possible implementation, the heat dissipation protrusion extends toward the flexible circuit board and is connected to the flexible circuit board.
[0014] In one possible implementation, the housing is an injection-molded part. Attached Figure Description
[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.
[0017] Figure 1 Schematic diagram of a lamp provided for some embodiments of this application;
[0018] Figure 2 This is a schematic diagram of a lamp provided for other embodiments of this application.
[0019] Figure label:
[0020] 100. Lighting fixtures;
[0021] 1. Housing; 11. Mounting part; 12. Fixing part; 13. Mounting cavity;
[0022] 2. Heat dissipation aluminum plate; 21. First heat dissipation section; 22. Second heat dissipation section;
[0023] 3. Flexible circuit board;
[0024] 4. Light source;
[0025] 5. First thermally conductive silicone;
[0026] 6. Heat dissipation protrusion. Detailed Implementation
[0027] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection. Furthermore, the directional terms mentioned in the embodiments of this application, such as "inner" and "outer," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0030] In the description of embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0031] Light sources generate heat when they emit light, and if this heat is not properly dissipated, the lifespan of the light fixture will be reduced. Related technologies use metal chassis for auxiliary heat dissipation; however, metal chassis are heavy and impose significant limitations on the design of the light fixture.
[0032] To address the aforementioned technical problems, this application provides a lighting fixture.
[0033] Please see Figure 1 , Figure 1 This is a schematic diagram of a lamp provided in some embodiments of this application. The lamp 100 includes a housing 1, a heat dissipation aluminum plate 2, a flexible circuit board 3, and a light source 4.
[0034] The housing 1 may include a mounting portion 11 and a fixing portion 12. The mounting portion 11 is annular, and in the height direction of the luminaire 100, one end of the mounting portion 11 is connected to the fixing portion 12, and the other end extends away from the fixing portion 12, forming a mounting cavity 13 with the fixing portion 12. Specifically, in the height direction of the luminaire 100, the mounting portion 11 may extend from one side of the fixing portion 12 away from the fixing portion 12. The sidewall and bottom wall of the mounting cavity 13 are the fixing portion 12. The mounting portion 11 may be annular.
[0035] The heat dissipation aluminum plate 2 can be disposed within the mounting cavity 13. The heat dissipation aluminum plate 2 can be connected to the housing 1 by means of bonding, snap-fitting, fastener connection, etc., and this application does not limit the specific method used.
[0036] The heat dissipation aluminum plate 2 may include a first heat dissipation part 21 and a second heat dissipation part 22. The first heat dissipation part 21 is connected to the mounting part 11, and one end of the second heat dissipation part 22 is connected to the first heat dissipation part 21, while the other end extends away from the mounting part 11 and fits against the fixing part 12. Specifically, the first heat dissipation part 21 is connected to the mounting part 11, and the second heat dissipation part 22 is connected to the fixing part 12. When the fixing part 12 is formed as a circle, the second heat dissipation part 22 can extend from the edge of the first heat dissipation part 21 away from the mounting part 11 in the radial direction of the fixing part 12, so the heat dissipation aluminum plate 2 can be formed as an "L" shape.
[0037] The flexible printed circuit board 3 (FPC) is disposed on the side of the heat dissipation aluminum plate 2 away from the housing 1, and the light source 4 is disposed on the side of the flexible printed circuit board 3 away from the housing 1, thus making the lamp 100 a side-emitting lamp. The light source 4 can be an LED lamp, which can be attached to the flexible printed circuit board 3.
[0038] Therefore, the original temperature of the lamp 100 can be directly reduced from 100℃ to 83℃ by the heat dissipation aluminum plate 2, which can reduce the temperature by 17℃ and improve the heat dissipation efficiency by 17%, thereby extending the service life of the light source 4 and avoiding the risk of damage to the light source 4.
[0039] According to the embodiments of this application, the lamp 100 connects the first heat dissipation part 21 of the heat dissipation aluminum plate 2 to the mounting part 11, the second heat dissipation part 22 of the heat dissipation aluminum plate 2 to the fixing part 12, and connects the flexible circuit board 3 connected to the light source 4 to the first heat dissipation part 21. The heat generated by the light source 4 during operation can be transferred to the first heat dissipation part 21, which in turn can transfer the heat to the mounting part 11 and the second heat dissipation part 22. The second heat dissipation part 22 can then transfer the heat to the fixing part 12. This expands the heat dissipation area and capacity of the lamp 100, thereby improving its service life. Since the heat dissipation aluminum plate 2 is made of aluminum, it is lightweight, which helps reduce the weight of the lamp 100. Simultaneously, the smaller area of the heat dissipation aluminum plate 2 reduces the insulation requirements of the lamp 100, thus lowering its manufacturing cost. Furthermore, because the heat dissipation capacity of the lamp 100 is improved, a more powerful light source 4 can be used, thereby solving the problem of insufficient luminous flux in the lamp 100.
[0040] Please continue reading. Figure 1 In some embodiments, the lamp 100 may further include a first thermally conductive silicone 5. The housing 1 and the heat dissipation aluminum plate 2 can be connected by the first thermally conductive silicone 5. Specifically, the first heat dissipation part 21 can be connected to the mounting part 11 by the first thermally conductive silicone 5, and the second heat dissipation part 22 can be connected to the mounting part 11 by the first thermally conductive silicone 5. The first thermally conductive silicone 5 can cover the surface of the heat dissipation aluminum plate 2 facing the housing 1.
[0041] Therefore, by setting the first thermally conductive silicone 5, the heat from the heat dissipation aluminum plate 2 can be quickly transferred to the housing 1, thereby improving the heat dissipation performance of the lamp 100. At the same time, the first thermally conductive silicone 5 also has good insulation properties, which can ensure the safety and reliability of the lamp 100 during operation.
[0042] Please continue reading. Figure 1 In some embodiments, the lamp 100 may further include a second thermally conductive silicone rubber (not shown). The flexible circuit board 3 can be connected to the heat dissipation aluminum plate 2 via the second thermally conductive silicone rubber. The second thermally conductive silicone rubber can cover the surface of the flexible circuit board 3 facing the heat dissipation aluminum plate 2. Therefore, by providing the second thermally conductive silicone rubber, the heat of the flexible circuit board 3 can be quickly transferred to the heat dissipation aluminum plate 2, thereby further improving the heat dissipation performance of the lamp 100. At the same time, the second thermally conductive silicone rubber also has good insulation properties, ensuring the safety and reliability of the lamp 100 during operation.
[0043] Please continue reading. Figure 1 In some embodiments, the width of the first heat dissipation part 21 in the height direction of the mounting part 11 is greater than or equal to 12 mm. Here, "width" refers to the distance between the two opposite edges of the first heat dissipation part 21. By limiting the width of the first heat dissipation part 21, its heat dissipation effect can be ensured, thereby contributing to ensuring the heat dissipation effect of the lamp 100.
[0044] For example, the width of the first heat dissipation part 21 can be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, etc.
[0045] Please continue reading. Figure 1 In some embodiments, the width of the second heat dissipation part 22 is greater than or equal to 12 mm. By limiting the width of the second heat dissipation part 22, the heat dissipation effect of the second heat dissipation part 22 can be guaranteed, thereby helping to ensure the heat dissipation effect of the lamp 100.
[0046] For example, the width of the second heat dissipation part 22 can be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, etc.
[0047] Please continue reading. Figure 1 In some embodiments, the first heat dissipation part 21 and the second heat dissipation part 22 are integrally formed. This facilitates the assembly of the heat dissipation aluminum plate 2, thereby improving the assembly efficiency of the lamp 100. It also ensures the reliability of the connection between the first heat dissipation part 21 and the second heat dissipation part 22, allowing the first heat dissipation part 21 to better transfer heat to the second heat dissipation part 22.
[0048] Please see Figure 2 , Figure 2 This is a schematic diagram of a lamp provided in other embodiments of this application. In some embodiments, a plurality of heat dissipation protrusions 6 are provided on the side of the second heat dissipation portion 22 facing the mounting cavity 13, and the plurality of heat dissipation protrusions 6 are spaced apart in the extending direction of the second heat dissipation portion 22. Herein, "a plurality of" means that the number of heat dissipation protrusions 6 is two or more. Thus, by providing a plurality of heat dissipation protrusions 6, the heat dissipation area of the lamp 100 can be increased, thereby further improving the heat dissipation performance of the lamp 100.
[0049] They are connected; the heat dissipation protrusion 6 and the second heat dissipation part 22 can be a single unit. This arrangement helps improve the assembly efficiency of the lamp 100.
[0050] Please continue reading. Figure 2 In some embodiments, the orthographic projection of the heat dissipation protrusion 6 onto the plane of the first heat dissipation part 21 is located outside the outline of the light source 4, so there is no overlap between the orthographic projection of the heat dissipation protrusion 6 onto the plane of the first heat dissipation part 21 and the outline of the light source 4. This arrangement can prevent the heat dissipation protrusion 6 from affecting the light emitted by the light source 4, thereby helping to ensure the luminous effect of the lamp 100.
[0051] Please continue reading. Figure 2 In some embodiments, the heat dissipation protrusion 6 can extend towards the flexible circuit board 3 and connect to the flexible circuit board 3. Thus, the heat dissipation protrusion 6 can simultaneously dissipate heat from the flexible circuit board 3 and the second heat dissipation part 22, thereby further improving the heat dissipation performance of the lamp 100.
[0052] For example, the housing 1 may be provided with ventilation openings. By providing ventilation openings, the heat dissipation performance of the lamp 100 can be further improved.
[0053] Please continue reading. Figure 1 and Figure 2 In some embodiments, the housing 1 can be an injection-molded part. This arrangement facilitates the manufacture of the housing 1 and reduces manufacturing costs compared to the metal lamp 100.
[0054] It should be noted that the housing 1 can also be a metal part, and this application does not limit it in this regard.
[0055] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A lamp, characterized in that, The lighting fixture includes: The housing includes a mounting portion and a fixing portion. The mounting portion is formed in annular shape. In the height direction of the lamp, one end of the mounting portion is connected to the fixing portion, and the other end extends away from the fixing portion and forms a mounting cavity with the fixing portion. A heat dissipation aluminum plate is disposed in the mounting cavity. The heat dissipation aluminum plate includes a first heat dissipation part and a second heat dissipation part. The first heat dissipation part is connected to the mounting part. One end of the second heat dissipation part is connected to the first heat dissipation part, and the other end extends away from the mounting part and is attached to the fixing part. A flexible circuit board, wherein the flexible circuit board is disposed on the side of the heat dissipation aluminum plate away from the housing; A light source is disposed on the side of the flexible circuit board away from the housing.
2. The lamp according to claim 1, characterized in that, The lamp also includes a first thermally conductive silicone, and the housing and the heat dissipation aluminum plate are connected by the first thermally conductive silicone.
3. The lamp according to claim 1, characterized in that, The lamp also includes a second thermally conductive silicone, and the flexible circuit board is connected to the heat dissipation aluminum plate through the second thermally conductive silicone.
4. The lamp according to claim 1, characterized in that, In the height direction of the mounting portion, the width of the first heat dissipation portion is greater than or equal to 12mm.
5. The lamp according to claim 2, characterized in that, The width of the second heat dissipation part is greater than or equal to 12mm.
6. The lamp according to claim 1, characterized in that, The first heat dissipation part and the second heat dissipation part are integrally formed.
7. The lamp according to claim 1, characterized in that, The second heat dissipation part has a plurality of heat dissipation protrusions on the side facing the mounting cavity, and the plurality of heat dissipation protrusions are spaced apart in the extending direction of the second heat dissipation part.
8. The lamp according to claim 7, characterized in that, The orthographic projection of the heat dissipation protrusion onto the plane where the first heat dissipation part is located is outside the outline of the light source.
9. The lamp according to claim 8, characterized in that, The heat dissipation protrusion extends toward the flexible circuit board and is connected to the flexible circuit board.
10. The lamp according to any one of claims 1-9, characterized in that, The housing is an injection molded part.