A lighting fixture with heat dissipation function
Patent Information
- Application Number
- CN202522379750.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-11-10
AI Technical Summary
然而，LED光源在工作过程中会产生大量热量，如果无法有效散热，将导致光源温度过高，从而引起光衰、色温漂移、功率衰减以及寿命缩短等问题，严重影响灯具的照明性能和使用可靠性
[0015]本实用新型主要具有以下有益效果：本实用新型通过在安装灯罩上设置散热安装面，并将散热部件、安装支架及散热上盖依次固定连接，形成完整的热传导与散热路径，使光源铝基板产生的热量可快速传递至散热部件并向空气散发，从而显著提升散热效率，避免光源铝基板中的LED光源因温升过高而造成光衰及寿命缩短；散热部件包括环形卡合连接的若干散热片，并配合散热上盖上的散热条槽，使散热片与外界空气形成对流通道，加速空气交换，进一步改善灯具内部热平衡；控制电路板安装在散热上盖内部，通过固定穿柱与散热上盖直接接触，使控制电路板在工作过程中产生的热量同步传导至散热部件，实现光源铝基板与控制电路板的双重散热，提高灯具的电气稳定性与工作可靠性。
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Figure CN224706869U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lighting fixture technology, and specifically relates to a lighting fixture with heat dissipation. Background Technology
[0002] With the rapid development of LED lighting technology, LED light sources have been widely used in the lighting industry due to their advantages such as high efficiency, energy saving, long lifespan, and fast response speed. However, LED light sources generate a lot of heat during operation. If heat cannot be effectively dissipated, the light source temperature will become too high, leading to problems such as light decay, color temperature drift, power attenuation, and shortened lifespan, which seriously affect the lighting performance and reliability of the luminaire.
[0003] Existing LED lighting fixtures typically conduct heat through heat sinks, metal base plates, or air convection. However, these heat dissipation structures often have the following shortcomings: First, the heat dissipation path is incomplete, and the heat generated by the LED light source cannot be quickly and efficiently transferred to the heat dissipation components. Second, the heat dissipation area is insufficient or the air convection channel is limited, causing heat to remain inside the lighting fixture and resulting in excessively high light source temperatures.
[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content
[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a lighting fixture with heat dissipation to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a lighting fixture with heat dissipation, comprising a lampshade, a lampshade chamber inside the lampshade, an aluminum substrate for a light source mounted on the inner surface of the lampshade chamber, a lens panel mounted on the outer side of the aluminum substrate for the light source, a heat dissipation component mounted on the upper end of the lampshade, a heat dissipation cover mounted on the upper end of the heat dissipation component, a control circuit board mounted inside the heat dissipation cover, and the control circuit board being connected to the aluminum substrate for the light source via wires.
[0007] Furthermore, the upper surface of the lampshade is provided with a heat dissipation mounting surface, the heat dissipation component is mounted on the heat dissipation mounting surface, a plurality of first mounting holes are evenly opened on the surface edge of the heat dissipation mounting surface, and a plurality of second mounting holes are evenly opened on the lower surface of the heat dissipation component. The plurality of first mounting holes and the plurality of second mounting holes correspond one to one, and are connected and fixed by fasteners passing through the first mounting holes and the second mounting holes.
[0008] Furthermore, a mounting bracket is installed on the upper end of the heat dissipation component. A plurality of first bracket through holes are evenly opened on the upper surface of the heat dissipation component, and a plurality of second bracket through holes are evenly opened on the surface of the mounting bracket. The plurality of second bracket through holes correspond one-to-one with the plurality of first bracket through holes, and are connected and fixed by fasteners passing through the second bracket through holes and the first bracket through holes, thereby fixing the mounting bracket on the upper end of the heat dissipation component.
[0009] Furthermore, the surface of the mounting bracket is evenly provided with a plurality of bracket through-posts, and the surface of the heat dissipation cover is evenly provided with a plurality of bracket through-holes. The plurality of bracket through-holes are respectively located at the upper ends of the plurality of bracket through-posts, and are connected and fixed to the bracket through-posts by fasteners passing through the bracket through-holes, thereby fixing the heat dissipation cover to the upper end of the heat dissipation component.
[0010] Furthermore, the inner sides of the heat dissipation cover are symmetrically provided with fixing through posts, and the control circuit board is set on the fixing through posts. The control circuit board has symmetrical fixing holes on both sides of its surface. The two fixing through holes correspond one-to-one with the two fixing through posts, and are connected and fixed by fasteners passing through the fixing through holes and fixing through posts, thereby fixing the control circuit board inside the heat dissipation cover.
[0011] Furthermore, the heat dissipation component includes several heat sinks, which are sequentially engaged in a ring-like manner to assemble the heat dissipation component.
[0012] Furthermore, several heat dissipation grooves are symmetrically formed on both sides of the surface of the heat dissipation cover, and these grooves are respectively positioned at the upper end of the heat dissipation component.
[0013] Furthermore, the inner surface of the lampshade chamber is uniformly provided with a plurality of first connecting through holes, the surface of the light source aluminum substrate is uniformly provided with a plurality of second connecting through holes, and the surface of the lens panel is uniformly provided with a plurality of third connecting through holes. The plurality of third connecting through holes, the plurality of second connecting through holes, and the plurality of first connecting through holes correspond one to one, and are connected and fixed by fasteners passing through the third connecting through holes, the second connecting through holes, and the first connecting through holes, thereby fixing the light source aluminum substrate and the lens panel on the inner surface of the lampshade chamber.
[0014] Furthermore, a wire-passing opening is provided in the center of the surface of the lampshade.
[0015] The present invention has the following advantages: By setting a heat dissipation mounting surface on the lamp cover and sequentially fixing and connecting the heat dissipation component, mounting bracket, and heat dissipation cover, a complete heat conduction and heat dissipation path is formed. This allows the heat generated by the aluminum substrate of the light source to be quickly transferred to the heat dissipation component and dissipated into the air, thereby significantly improving heat dissipation efficiency and preventing the LED light source in the aluminum substrate from experiencing light decay and shortened lifespan due to excessive temperature rise. The heat dissipation component includes several heat sinks connected by a ring, which, together with the heat dissipation grooves on the heat dissipation cover, form a convection channel between the heat sinks and the outside air, accelerating air exchange and further improving the internal thermal balance of the lamp. The control circuit board is installed inside the heat dissipation cover and is in direct contact with the heat dissipation cover through a fixed through-post, allowing the heat generated by the control circuit board during operation to be synchronously conducted to the heat dissipation component. This achieves dual heat dissipation for both the aluminum substrate of the light source and the control circuit board, improving the electrical stability and operational reliability of the lamp. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.
[0018] Figure 3 This is an exploded structural diagram of the lampshade, heat dissipation component, heat dissipation cover, control circuit board, and mounting bracket of this utility model.
[0019] Figure 4 This is a schematic diagram of the heat dissipation component structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the heat sink structure of this utility model.
[0021] Reference numerals: 10 for mounting lampshade; 11 for lampshade chamber; 20 for light source aluminum substrate; 30 for lens panel; 40 for heat dissipation component; 50 for heat dissipation cover; 60 for control circuit board; 12 for heat dissipation mounting surface; 121 for first mounting through hole; 41 for second mounting through hole; 70 for mounting bracket; 42 for first bracket through hole; 71 for second bracket through hole; 72 for bracket through post; 51 for bracket through hole; 52 for fixing through post; 61 for fixing through hole; 43 for heat dissipation fin; 53 for heat dissipation groove; 111 for first connecting through hole; 21 for second connecting through hole; 31 for third connecting through hole; 13 for wire passage opening. Detailed Implementation
[0022] like Figures 1 to 5As shown, a heat dissipation lighting fixture includes a lampshade 10 with a lampshade chamber 11 inside. An aluminum substrate 20 for a light source is mounted on the inner surface of the lampshade chamber 11. A lens panel 30 is mounted on the outer side of the aluminum substrate 20 to focus or diffuse light, thereby improving illumination. A heat dissipation component 40 is mounted on the upper end of the lampshade 10, and a heat dissipation cover 50 is mounted on the upper end of the heat dissipation component 40, forming a protective enclosure for the heat dissipation component 40. A control circuit board 60 is installed inside the heat dissipation cover 50, which is connected to the aluminum substrate 20 for providing driving power and control signals to the light source to achieve the lighting function. During use, the heat generated by the LED light source is transferred through the aluminum substrate 20 to the upper end of the lampshade 10 and then to the heat dissipation component 40 for heat conduction and dissipation, thus preventing the light source from overheating and affecting its lifespan and luminous efficiency.
[0023] In practical implementation, the upper surface of the lampshade 10 is provided with a heat dissipation mounting surface 12, and the heat dissipation component 40 is mounted on the heat dissipation mounting surface 12. The surface edge of the heat dissipation mounting surface 12 is uniformly provided with a plurality of first mounting through holes 121, and the lower surface of the heat dissipation component 40 is uniformly provided with a plurality of second mounting through holes 41. The plurality of first mounting through holes 121 and the plurality of second mounting through holes 41 correspond one to one, and are connected and fixed by fasteners passing through the first mounting through holes 121 and the second mounting through holes 41, thereby fixing the heat dissipation component 40 on the lampshade 10. In use, the heat generated by the LED light source is conducted to the heat dissipation mounting surface 12 through the light source aluminum substrate 20, and then the heat dissipation component 40 performs rapid heat conduction and heat dissipation treatment, effectively reducing the working temperature of the light source chip and preventing light decay and life reduction caused by excessive temperature rise.
[0024] In practical implementation, a mounting bracket 70 is installed on the upper end of the heat dissipation component 40. A plurality of first bracket through holes 42 are evenly distributed on the upper surface of the heat dissipation component 40, and a plurality of second bracket through holes 71 are evenly distributed on the surface of the mounting bracket 70. The second bracket through holes 71 correspond one-to-one with the first bracket through holes 42, and are connected and fixed by fasteners passing through the second bracket through holes 71 and the first bracket through holes 42, thereby fixing the mounting bracket 70 to the upper end of the heat dissipation component 40. A plurality of bracket through posts 72 are evenly distributed on the surface of the mounting bracket 70, and a plurality of bracket through posts 72 are evenly distributed on the surface of the heat dissipation cover 50. A plurality of bracket through-holes 51 are correspondingly arranged on the upper ends of a plurality of bracket through-posts 72, and are connected and fixed to the bracket through-holes 51 and bracket through-posts 72 by fasteners passing through the bracket through-holes 51, thereby fixing the heat dissipation cover 50 to the upper end of the heat dissipation component 40. In use, the heat generated by the LED light source is conducted through the light source aluminum substrate 20 to the mounting lamp cover 10, and then transferred to the heat dissipation component 40 through the heat dissipation mounting surface 12. The heat dissipation component 40, the mounting bracket 70, and the heat dissipation cover 50 constitute a heat dissipation conduction and heat dissipation protection structure, so that the internal heat can be quickly conducted through the heat dissipation component 40 and released to the outside air, thereby improving the overall heat dissipation efficiency.
[0025] In practical implementation, the heat dissipation cover 50 has symmetrically arranged fixing posts 52 on both inner sides. The control circuit board 60 is mounted on the fixing posts 52. The control circuit board 60 has symmetrically arranged fixing holes 61 on both sides of its surface. The two fixing holes 61 correspond one-to-one with the two fixing posts 52. Fasteners pass through the fixing holes 61 and are connected and fixed to the fixing posts 52, thereby fixing the control circuit board 60 inside the heat dissipation cover 50. In use, the control circuit board 60 provides driving power and control signals to the light source aluminum substrate 20. At the same time, the control circuit board 60 also generates a certain amount of heat during operation. The heat can be conducted to the heat dissipation cover 50 through the fixing posts 52 and then dissipated outward through the heat dissipation component 40, thereby further improving the overall heat dissipation efficiency and avoiding instability of circuit performance due to excessive temperature rise.
[0026] In practical implementation, the heat dissipation component 40 includes a plurality of heat dissipation fins 43, which are sequentially and interlocked in a ring to form the heat dissipation component 40. This ring-shaped distribution increases the heat dissipation surface area of the heat dissipation component 40, allowing heat to be dissipated more evenly. Furthermore, the heat dissipation cover 50 has a plurality of heat dissipation grooves 53 symmetrically formed on both sides of its surface, with each groove corresponding to a position on the upper end of the heat dissipation component 40. These grooves allow outside air to form an air convection channel with the upper end of the heat dissipation component 40, further improving heat dissipation efficiency, accelerating heat exchange, reducing overall temperature rise, and enhancing the heat dissipation effect and lifespan of the lighting fixture.
[0027] In practical implementation, a plurality of first connecting through holes 111 are uniformly formed on the inner surface of the lampshade chamber 11, a plurality of second connecting through holes 21 are uniformly formed on the surface of the light source aluminum substrate 20, and a plurality of third connecting through holes 31 are uniformly formed on the surface of the lens panel 30. The plurality of third connecting through holes 31, the plurality of second connecting through holes 21, and the plurality of first connecting through holes 111 correspond one-to-one, and are connected and fixed by fasteners passing through the third connecting through holes 31, the second connecting through holes 21, and the first connecting through holes 111, thereby fixing the light source aluminum substrate 20 and the lens panel 30 on the inner surface of the lampshade chamber 11. In use, the light source aluminum substrate 20 is used to carry the LED light source chip and conduct heat transfer, and the lens panel 30 focuses or diffuses the light to improve the illumination effect. At the same time, the fastened connection structure between the light source aluminum substrate 20 and the lampshade chamber 11 facilitates the rapid transfer of heat to the lampshade and heat dissipation components 40, thereby improving the overall heat dissipation efficiency.
[0028] In practical implementation, a wire-passing opening 13 is provided in the middle of the surface of the lampshade 10 for wires to pass through and connect. In use, the wires can be connected to the control circuit board 60 and the external power supply through the wire-passing opening 13, thereby providing working voltage and control signals to the light source aluminum substrate 20, enabling the lighting fixture to achieve normal lighting and control functions.
[0029] In summary, this utility model, by providing a heat dissipation mounting surface 12 on the lamp cover 10 and sequentially fixing and connecting the heat dissipation component 40, mounting bracket 70, and heat dissipation cover 50, forms a complete heat conduction and heat dissipation path. This allows the heat generated by the light source aluminum substrate 20 to be quickly transferred to the heat dissipation component 40 and dissipated into the air, thereby significantly improving heat dissipation efficiency and preventing the LED light source in the light source aluminum substrate 20 from experiencing light decay and shortened lifespan due to excessive temperature rise. The heat dissipation component 40 includes several heat dissipation fins 43 that are connected in a ring and engage with the heat dissipation grooves 53 on the heat dissipation cover 50, allowing the heat dissipation fins 43 to form a convection channel with the outside air, accelerating air exchange and further improving the internal thermal balance of the lamp. The control circuit board 60 is installed inside the heat dissipation cover 50 and is in direct contact with the heat dissipation cover 50 through the fixing through post 52, allowing the heat generated by the control circuit board 60 during operation to be synchronously conducted to the heat dissipation component 40, achieving dual heat dissipation for the light source aluminum substrate 20 and the control circuit board 60, and improving the electrical stability and operational reliability of the lamp.
Claims
1. A lighting fixture with heat dissipation function, characterized in that, It includes a lampshade (10), which has a lampshade chamber (11) inside. A light source aluminum substrate (20) is mounted on the inner surface of the lampshade chamber (11). A lens panel (30) is mounted on the outer side of the light source aluminum substrate (20). A heat dissipation component (40) is mounted on the upper end of the lampshade (10). A heat dissipation cover (50) is mounted on the upper end of the heat dissipation component (40). A control circuit board (60) is mounted inside the heat dissipation cover (50). The control circuit board (60) is connected to the light source aluminum substrate (20) by wires.
2. The lighting fixture with heat dissipation according to claim 1, characterized in that, The upper surface of the lampshade (10) is provided with a heat dissipation mounting surface (12), and the heat dissipation component (40) is mounted on the heat dissipation mounting surface (12). The surface edge of the heat dissipation mounting surface (12) is evenly provided with a plurality of first mounting holes (121), and the lower surface of the heat dissipation component (40) is evenly provided with a plurality of second mounting holes (41). The plurality of first mounting holes (121) and the plurality of second mounting holes (41) correspond one to one, and are connected and fixed by fasteners passing through the first mounting holes (121) and the second mounting holes (41).
3. The lighting fixture with heat dissipation according to claim 2, characterized in that, The heat dissipation component (40) is equipped with a mounting bracket (70) at its upper end. The upper surface of the heat dissipation component (40) is evenly provided with a plurality of first bracket through holes (42). The surface of the mounting bracket (70) is evenly provided with a plurality of second bracket through holes (71). The plurality of second bracket through holes (71) correspond one-to-one with the plurality of first bracket through holes (42). Fasteners are passed through the second bracket through holes (71) and connected and fixed to the first bracket through holes (42), thereby fixing the mounting bracket (70) at the upper end of the heat dissipation component (40).
4. The lighting fixture with heat dissipation according to claim 3, characterized in that, The surface of the mounting bracket (70) is uniformly provided with a plurality of bracket through posts (72), and the surface of the heat dissipation cover (50) is uniformly provided with a plurality of bracket through openings (51). The plurality of bracket through openings (51) are arranged one-to-one with the upper ends of the plurality of bracket through posts (72), and are connected and fixed to the bracket through posts (72) by fasteners passing through the bracket through openings (51), thereby fixing the heat dissipation cover (50) to the upper end of the heat dissipation component (40).
5. The lighting fixture with heat dissipation according to claim 4, characterized in that, The heat dissipation cover (50) has symmetrically arranged fixing posts (52) on its inner sides. The control circuit board (60) is mounted on the fixing posts (52). The control circuit board (60) has symmetrically arranged fixing holes (61) on its surface. The two fixing holes (61) correspond one-to-one with the two fixing posts (52). The control circuit board (60) is fixed by fasteners passing through the fixing holes (61) and the fixing posts (52), thereby fixing the control circuit board (60) inside the heat dissipation cover (50).
6. The lighting fixture with heat dissipation according to claim 5, characterized in that, The heat dissipation component (40) includes a plurality of heat sinks (43), which are sequentially engaged in a ring-shaped manner to form the heat dissipation component (40).
7. The lighting fixture with heat dissipation according to claim 6, characterized in that, The heat dissipation cover (50) has several heat dissipation grooves (53) symmetrically opened on both sides of its surface, and the heat dissipation grooves (53) are respectively arranged at the upper end of the heat dissipation component (40).
8. The lighting fixture with heat dissipation according to claim 7, characterized in that, The inner surface of the lampshade chamber (11) is uniformly provided with a plurality of first connecting through holes (111), the surface of the light source aluminum substrate (20) is uniformly provided with a plurality of second connecting through holes (21), and the surface of the lens panel (30) is uniformly provided with a plurality of third connecting through holes (31). The plurality of third connecting through holes (31), the plurality of second connecting through holes (21), and the plurality of first connecting through holes (111) correspond one to one. Fasteners are used to pass through the third connecting through holes (31), the second connecting through holes (21), and the first connecting through holes (111) to connect and fix them, thereby fixing the light source aluminum substrate (20) and the lens panel (30) on the inner surface of the lampshade chamber (11).
9. The lighting fixture with heat dissipation according to claim 1, characterized in that, The surface of the lampshade (10) has a wire-passing opening (13) in the middle.