Aluminum-made cylindrical lamp housing with strong heat dissipation

By incorporating a heat dissipation component and an exhaust fan inside the downlight housing, combined with aluminum materials and an exhaust fan, the problem of poor heat dissipation in downlights is solved, achieving efficient heat dissipation, extending service life, and improving safety.

CN224302036UActive Publication Date: 2026-05-29NINGBO RONSON HIGH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO RONSON HIGH TECH CO LTD
Filing Date
2025-08-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing downlights have poor heat dissipation, and prolonged use can easily lead to damage to the internal circuitry or burnout of the bulbs, posing a fire hazard.

Method used

The downlight housing is equipped with a heat dissipation component and an exhaust fan. The good thermal conductivity of aluminum material is utilized, and heat is dissipated through the exhaust fan. Combined with the design of a detachable protective cover, efficient heat dissipation is achieved.

Benefits of technology

It improves the heat dissipation efficiency of downlights, extends their service life, enhances safety and stability, and reduces the failure rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a strong heat dissipation aluminum-made down lamp shell, which comprises a lamp shell and a protective cover arranged at the side of the lamp shell; a heat dissipation assembly is arranged in the lamp shell; and an air extraction part is arranged at the side of the protective cover; the heat dissipation assembly is adapted to be mounted in the lamp shell; the protective cover is adapted to be connected with the lamp shell to fix the heat dissipation assembly; and the air extraction part is adapted to extract air to dissipate heat for the heat dissipation assembly and the lamp shell. The application has the beneficial effects that the detachable protective cover is arranged at the side of the lamp shell, the air extraction part is arranged in the protective cover, and the heat dissipation assembly is arranged in the lamp shell; when being mounted, the heat dissipation assembly can be placed in the lamp shell to dissipate heat; then, the protective cover is mounted on the lamp shell to fix the heat dissipation assembly and to fully dissipate heat for the lamp shell and the heat dissipation assembly through the air extraction part, so that the heat dissipation effect is improved, the service life of the product is prolonged, and the product is safe, convenient and reliable.
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Description

Technical Field

[0001] This application relates to the field of downlight technology, and in particular to a high-heat-dissipation aluminum downlight housing. Background Technology

[0002] Recessed lights are typically installed in the perimeter ceiling of bedrooms, living rooms, and bathrooms. These concealed light fixtures, embedded within the ceiling, project all light downwards, providing direct illumination. Different reflectors, lenses, blinds, and bulbs can be used to achieve various lighting effects. Recessed lights do not take up space and can enhance the soft ambiance of a room.

[0003] Existing downlights have poor heat dissipation, which can easily damage the internal circuitry or burn out the bulbs after prolonged use, rendering them unusable and potentially causing fires. Therefore, this paper proposes a high-heat-dissipation aluminum downlight housing that offers superior heat dissipation, convenient cooling, and reliable safety. Utility Model Content

[0004] One objective of this application is to provide a high-heat-dissipation aluminum downlight housing that is effective, convenient, safe, and reliable.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a heat-dissipating aluminum downlight housing, comprising a lamp housing and a protective cover disposed on the side of the lamp housing; a heat dissipation component is disposed inside the lamp housing, and an exhaust fan is disposed on the side of the protective cover; the heat dissipation component is adapted to be installed inside the lamp housing, and the protective cover is adapted to be connected to the lamp housing to fix the heat dissipation component, and the exhaust fan is adapted to exhaust air to dissipate heat from the heat dissipation component and the lamp housing.

[0006] Preferably, a lamp body is provided inside the lamp housing, the exhaust section is electrically connected to the lamp body, and the lamp body is attached to the heat dissipation component.

[0007] Preferably, the heat dissipation assembly includes a heat dissipation cylinder and multiple heat dissipation fins; the heat dissipation cylinder is installed on the lamp housing, and the multiple heat dissipation fins are equidistantly arranged on the outer wall of the heat dissipation cylinder and are in contact with the inner wall of the lamp housing.

[0008] Preferably, the bottom of the heat sink is in contact with the lamp body.

[0009] Preferably, the lamp body includes a lamp source bracket, a reflector, and an anti-glare cover; the lamp source bracket is disposed inside the lamp housing, the reflector is installed on the side of the lamp source bracket, and the anti-glare cover is disposed on the side of the reflector.

[0010] Preferably, the exhaust unit is an exhaust fan, which is electrically connected to the lamp body, and the protective cover has ventilation holes on its side.

[0011] Preferably, a filter screen is provided on the side of the protective cover.

[0012] Preferably, the protective cover and the lamp housing are detachably connected by bolts.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: a detachable protective cover is provided on the side of the lamp housing, an exhaust fan is provided inside the protective cover, and a heat dissipation component is provided inside the lamp housing; thus, during installation, the heat dissipation component can be placed inside the lamp housing for heat conduction and dissipation, and then the protective cover is installed on the lamp housing to fix the heat dissipation component while the exhaust fan fully dissipates heat from the lamp housing and the heat dissipation component, which facilitates improved heat dissipation effect, extends product lifespan, and is safe, convenient and reliable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This utility model Figure 1 Schematic diagram of the structure from the middle side view.

[0016] Figure 3 This utility model Figure 1 Schematic diagram of the mid-side cross-section structure.

[0017] Figure 4 This utility model Figure 3 Enlarged cross-sectional structural diagram of the central protective cover.

[0018] Figure 5 This utility model Figure 3 Enlarged cross-sectional structural diagram of the central lamp housing.

[0019] In the diagram: 1. Lamp housing; 11. Heat dissipation assembly; 111. Heat dissipation cylinder; 112. Heat dissipation fins; 12. Lamp body; 121. Lamp source bracket; 122. Reflector; 123. Anti-glare cover; 2. Protective cover; 21. Exhaust unit; 211. Exhaust fan; 22. Ventilation hole. Detailed Implementation

[0020] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and should not be construed as limiting the specific protection scope of this application.

[0022] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0023] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0024] One preferred embodiment of this application, such as Figures 1 to 5 As shown, a high-heat-dissipation aluminum downlight housing includes a lamp housing 1 and a detachable protective cover 2 mounted on the upper part of the lamp housing 1. A heat dissipation component 11 is installed inside the lamp housing 1 to facilitate heat dissipation, thereby improving heat conduction and dissipation efficiency. An exhaust fan 21 is provided on the side of the protective cover 2 to facilitate ventilation of the lamp housing 1 and the heat dissipation component 11, improving heat dissipation effect and enhancing the overall heat dissipation performance of the lamp, ensuring stability and safety during long-term operation. During installation, the protective cover 2 can be detachably opened from the lamp housing 1, and the heat dissipation component 11 can be installed inside the lamp housing 1. Then, the protective cover 2 is installed back onto the lamp housing 1. Through the cooperation of the exhaust fan 21 and the heat dissipation component 11, heat dissipation of the lamp housing 1 and the heat dissipation component 11 is achieved, improving the heat dissipation efficiency of the lamp, thereby extending the lamp's service life and ensuring better stability and safety.

[0025] In this embodiment, as Figure 2 , Figure 3 and Figure 5As shown, it should be understood that a lamp body 12 is provided inside the lamp housing 1 for better illumination. The lamp body 12 is electrically connected to the exhaust fan 21, and the lamp body 12 is in contact with the heat dissipation component 11. When the lamp body 12 is powered on for illumination, the exhaust fan 21 can be operated through the electrical connection. The operation of the exhaust fan 21 can expel the heat generated by the lamp body 12 to the outside of the lamp housing 1, and can also absorb and expel the heat dissipation component 11 from the outside of the lamp housing 1. This allows the heat between the lamp housing 1, the heat dissipation component 11, and the lamp body 12 to be efficiently transferred and dissipated, thereby effectively reducing the temperature of the lamp body 12 and preventing the lamp from aging or degrading due to excessive temperature. This extends the lifespan of the lamp and enhances the product's competitiveness. At the same time, the lamp housing 1 is made of aluminum, which has good thermal conductivity and can quickly transfer the heat from the heat dissipation component 11 to the lamp housing 1. The lamp housing 1, the heat dissipation component 11, and the exhaust fan 21 work together to achieve efficient heat dissipation, which is safe, convenient, and highly practical.

[0026] In this embodiment, as Figures 2 to 5 As shown, it can be understood that the heat dissipation component 11 includes a heat dissipation cylinder 111 and multiple heat dissipation fins 112. The heat dissipation cylinder 111 is installed inside the lamp housing 1, and the multiple heat dissipation fins 112 are equidistantly arranged on the outer wall of the heat dissipation cylinder 111, with the sides of the multiple heat dissipation fins 112 in contact with the inner wall of the lamp housing 1, thereby achieving efficient heat conduction, increasing the heat dissipation area, and improving heat dissipation efficiency. Heat is quickly dissipated to the lamp housing 1 through the heat dissipation fins 112 and then discharged to the outside of the lamp housing 1 by the exhaust fan 21, effectively reducing the operating temperature of the lamp body 12, preventing the lamp from aging or degrading due to excessive temperature, and improving the stability and service life of the lamp.

[0027] It is understandable that, such as Figure 2 and Figure 5 As shown, the heat dissipation fins 112 have a circular cross-section and are arranged in a ring array on the outer wall of the heat dissipation cylinder 111. This enhances the heat dissipation effect and works in conjunction with the exhaust fan 21 to extract heat from the lamp body 12, the heat dissipation fins 112, and the lamp housing 1. This facilitates faster and more rapid heat dissipation, ensuring the lamp body 12 operates stably for a long time, reducing the failure rate, and improving the overall performance and lifespan of the lamp.

[0028] In this embodiment, as Figures 3 to 5As shown, it should be understood that the bottom of the heat sink 111 is in contact with the lamp body 12, allowing the heat emitted by the lamp body 12 to be conducted to the heat dissipation fins 112 through the heat sink 111. The heat is then transferred from the heat dissipation fins 112 to the outer wall of the aluminum lamp housing 1. Simultaneously, the exhaust fan 21 extracts heat from inside the lamp housing 1 for better heat dissipation. Therefore, during installation, the protective cover 2 can be separated from the upper end of the lamp housing 1 first. Then, the heat sink 111 can be installed inside the lamp housing 1. At this point, the bottom of the heat sink 111 can be tightly fitted with the lamp body 12, and one end of each of the multiple heat dissipation fins 112 on the side of the heat sink 111 is precisely in contact with the inner wall of the lamp housing 1, thus improving heat dissipation. After installation, the protective cover 2 can be fixedly installed on the lamp housing 1 to conduct heat. The protective cover 2 can then fix the heat sink 111 to prevent it from separating from the lamp body 12 and affecting the heat dissipation effect. When the lamp body 12 is powered on, the exhaust fan 21 on the protective cover 2 also operates to exhaust the heat inside the lamp housing 1. At the same time, the heat sink 111 evenly conducts the heat to the heat dissipation fins 112, which facilitates better heat dissipation of the lamp body 12, improves the lighting effect and service life of the lamp body 12, and improves the overall heat dissipation efficiency of the lamp. This avoids problems such as high temperature aging and light decay of the lamp, ensuring the stability and reliability of the lamp.

[0029] In this embodiment, as Figure 2 , Figure 3 and Figure 5 As shown, the lamp body 12 includes a lamp source bracket 121, a reflector 122, and an anti-glare cover 123. The lamp source bracket 121 is installed inside the lamp housing 1. The reflector 122 is fixedly connected to the lamp source bracket 121 by bolts. The anti-glare cover 123 is fixedly installed on the reflector 122 by long bolts, which makes the overall structure of the lamp body 12 more stable. At the same time, it ensures the focusing and uniform emission of the light source, reduces the energy loss caused by light scattering, makes the light more concentrated and softer, reduces the glare effect, and improves the lighting comfort. By setting the anti-glare cover 123, it is easy to have a good light-shielding effect and enhance the overall aesthetics of the lamp.

[0030] In this embodiment, as Figures 1 to 5As shown, the exhaust unit 21 is an exhaust fan 211, which is electrically connected to the lamp body 12. The protective cover 2 has ventilation holes 22 on its side, allowing the exhaust fan 211 to expel the extracted heat from the lamp housing 1 through the ventilation holes 22, thus improving heat dissipation. During installation, the lamp body 12 inside the lamp housing 1 is already installed on the outer wall. The protective cover 2 can then be detachably opened, and the heat sink 111 can be placed inside the lamp housing 1, ensuring the bottom of the heat sink 111 is tightly fitted to the lamp body 12. Simultaneously, one end of the multiple heat dissipation fins 112 on the side of the heat sink 111 is fitted to the inner wall of the lamp housing 1, allowing heat to be quickly conducted to the heat dissipation fins 112. The exhaust unit 21 then expels the heat from the lamp housing 1 through the ventilation holes 22, achieving efficient heat dissipation and ensuring stable performance of the lamp during long-term use, thus extending its lifespan. To extend the lifespan of the lamp, when the lamp body 12 is illuminating, the exhaust fan 211 is also powered on and running. This allows the exhaust fan 211 to absorb the heat dissipated from the heat sink 111, while the heat from the heat sink 111 is evenly transferred to the aluminum lamp housing 1 through the heat dissipation fins 112, thus facilitating better heat dissipation and conduction. When the exhaust fan 211 is running, it generates negative pressure through high-speed rotation, which quickly draws out the hot air inside the lamp housing 1 and discharges it to the outside of the lamp housing 1 through the external ventilation hole 22, thereby improving the overall heat dissipation efficiency of the lamp. The good heat dissipation effect and efficiency facilitate better heat dissipation of the lamp during illumination, extending the lifespan of the lamp. During disassembly, the protective cover 2 can be separated from the lamp housing 1, and the heat dissipation component 11 can be taken out from the lamp housing 1, facilitating better maintenance of the heat dissipation component 11 and improving the practicality and convenience of the device.

[0031] In this embodiment, as Figure 1 , Figure 3 and Figure 4 As shown, it should be noted that in order to prevent dust and impurities from entering the lamp housing 1 and affecting the normal operation of the lamp, the ventilation hole 22 on the side of the protective cover 2 is equipped with a dustproof net. The dustproof net is fixed inside the ventilation hole 22 by means of buckles or adhesive, effectively blocking external dust from entering the lamp housing 1, while not affecting air circulation and ensuring heat dissipation efficiency.

[0032] In this embodiment, as Figure 1 , Figure 4 and Figure 5 As shown, it is understandable that the protective cover 2 and the lamp housing 1 are detachably connected by bolts, which allows for quick removal of the protective cover 2 when cleaning or replacing the dust filter is required. This enables the dust filter to be cleaned or replaced, ensuring better heat dissipation, improving the heat dissipation effect, and extending the lifespan of the lamp. At the same time, the filter can prevent dust and impurities from entering the lamp housing 1, avoiding affecting the normal operation of the internal components of the lamp, and further ensuring the overall stability and safety of the lamp.

[0033] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A high-heat-dissipation aluminum downlight housing, characterized in that: The lamp includes a lamp housing and a protective cover disposed on the side of the lamp housing; a heat dissipation component is disposed inside the lamp housing, and an exhaust fan is disposed on the side of the protective cover; the heat dissipation component is adapted to be installed inside the lamp housing, and the protective cover is adapted to be connected to the lamp housing to fix the heat dissipation component, and the exhaust fan is adapted to exhaust air to dissipate heat from the heat dissipation component and the lamp housing.

2. The high-heat-dissipation aluminum downlight housing as described in claim 1, characterized in that: The lamp housing contains a lamp body, the exhaust fan is electrically connected to the lamp body, and the lamp body is attached to the heat dissipation assembly.

3. The high-heat-dissipation aluminum downlight housing as described in claim 2, characterized in that: The heat dissipation assembly includes a heat dissipation cylinder and multiple heat dissipation fins; the heat dissipation cylinder is installed on the lamp housing, and the multiple heat dissipation fins are equidistantly arranged on the outer wall of the heat dissipation cylinder and are in contact with the inner wall of the lamp housing.

4. The high-heat-dissipation aluminum downlight housing as described in claim 3, characterized in that: The bottom of the heat sink is in contact with the lamp body.

5. The high-heat-dissipation aluminum downlight housing as described in claim 4, characterized in that: The lamp body includes a lamp source bracket, a reflector, and an anti-glare cover; the lamp source bracket is disposed inside the lamp housing, the reflector is installed on the side of the lamp source bracket, and the anti-glare cover is disposed on the side of the reflector.

6. The high-heat-dissipation aluminum downlight housing as described in claim 2, characterized in that: The exhaust unit is an exhaust fan, which is electrically connected to the lamp body, and the protective cover has ventilation holes on its side.

7. The high-heat-dissipation aluminum downlight housing as described in claim 6, characterized in that: A filter screen is provided on the side of the protective cover.

8. The high-heat-dissipation aluminum downlight housing as described in claim 1, characterized in that: The protective cover and the lamp housing are detachably connected by bolts.