An annular ceiling lamp with multi-directional heat dissipation air duct

Abstract

The utility model relates to lighting lamps and lanterns technical field, specifically disclose a kind of annular ceiling lamp with multi-directional heat dissipation air duct, its structure includes fixed base, lamp strip, mounting seat and micro fan, fixed base inside is formed with the communicating air duct cavity, and the heat dissipation fin is fixed in air duct cavity, lamp strip is fixed in fixed base bottom, micro fan is equipped in mounting seat, the ceiling lamp further includes filter screen, slide bar, connecting seat, first magnet and second magnet, filter screen is equipped in mounting seat end, one end of slide bar is connected filter screen, and the other end is slidably inserted into mounting seat and is connected connecting seat, first magnet and second magnet are respectively equipped on connecting seat and fixed base and mutually magnetically attract.The utility model cooperates fan, air duct and fin to build active heat dissipation system, significantly improves the heat dissipation efficiency of high-power lamps and lanterns, simultaneously realizes the tool-free quick release of filter screen using the sliding fit of slide bar and the magnet adsorption structure, with compact structure, strong heat dissipation performance and the beneficial effect of easy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, and in particular to a ring-shaped ceiling light with multi-directional heat dissipation ducts. Background Technology

[0002] With the popularization of LED lighting technology, high-power ring ceiling lights are widely used in homes and commercial spaces due to their advantages such as uniform light emission and strong decorative effect. However, high-power lamps generate a lot of heat during operation. If the heat cannot be dissipated in time, it will lead to accelerated light decay of the lamp beads, seriously affecting the lifespan and performance stability of the lamp.

[0003] Existing ceiling lights with integrated cooling systems typically employ natural convection or simple fan-cooled structures. In practical applications, the cooling structure is often not tightly integrated with the main frame, resulting in obstructed airflow and hindering efficient heat exchange within the lamp body. Furthermore, to prevent dust from entering the lamp body and affecting fan operation and lighting performance, filters are usually installed at the air inlet.

[0004] Traditional filter fixing structures mostly use screw fastening or separate snap-fit ​​structures. This design has obvious shortcomings. Because ceiling lights are installed at a high height, when dust accumulates on the filter and needs to be cleaned, maintenance personnel must carry tools to work at height, which is cumbersome and poses safety hazards. In addition, frequent disassembly of screws can easily cause structural wear or loss of parts.

[0005] Therefore, this utility model proposes a ring-shaped ceiling light with multi-directional heat dissipation ducts to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of unreasonable heat dissipation structure, low heat exchange efficiency, inconvenient disassembly and assembly of air inlet filter components, high maintenance costs and the need for auxiliary tools in the existing ring ceiling lights with multi-directional heat dissipation channels, this utility model aims to provide a ring ceiling light with multi-directional heat dissipation channels with improved structure that can effectively solve the above problems.

[0007] This utility model provides a ring-shaped ceiling light with multi-directional heat dissipation air ducts, including: a fixed base, a light strip, a mounting base, and a miniature fan; the fixed base serves as the main support frame, and a communicating air duct cavity is formed inside it, and the light strip is fixed to the bottom of the fixed base.

[0008] The ring-shaped ceiling light with multi-directional heat dissipation ducts also includes heat dissipation fins, a filter, a sliding rod, a connecting base, a first magnet, and a second magnet. The heat dissipation fins are constructed of multiple parallel heat-conducting metal sheets, fixedly disposed within the air duct cavity and tightly fitted against the inner wall of the mounting base. The filter is a mesh plate structure that covers the port of the mounting base.

[0009] Furthermore, the fixed base, the mounting base, and the heat dissipation fins form a complete airflow channel through a sealed connection. The filter screen is slidably connected to the mounting base via a sliding rod, which passes through the mounting base and connects to the connecting seat. The first magnet and the second magnet are respectively fixed to the opposite surfaces of the connecting seat and the fixed base, and the filter screen is positioned at the port of the mounting base by magnetic attraction. This combination not only ensures an efficient heat dissipation path but also enables tool-free quick removal of the filter screen.

[0010] Preferably, the interior of the fixed base has a through-hole air duct cavity connected to several heat dissipation fins via heat conduction. The heat dissipation fins extend along the airflow direction to maximize the heat exchange contact area.

[0011] Preferably, the wall of the mounting base is provided with a guide hole, and the slide rod passes through the guide hole, so that the slide rod can drive the filter screen to perform linear reciprocating motion relative to the mounting base.

[0012] Preferably, the connecting seat has a first mounting groove on the side facing the fixed base, and the first magnet is fixedly embedded in the first mounting groove to provide a stable magnetic force source.

[0013] Preferably, the fixed base has a second mounting groove on its end face facing the connecting seat, and the second magnet is fixedly embedded in the second mounting groove, thereby forming a closed magnetic circuit locking structure with the first magnet.

[0014] Preferably, the outer circumferential surface of the slide bar is provided with a plurality of annular anti-slip grooves, which are evenly spaced along the axial direction of the slide bar to increase the damping feel during sliding and facilitate manual gripping.

[0015] Preferably, the fixing base has an overall C-shaped structure, and the cross-section of the fixing base is an inverted U-shaped or rectangular tubular structure, and the light strip is laid along the bottom contour of the fixing base.

[0016] Preferably, the cross-sectional area of ​​the connecting seat is smaller than the cross-sectional area of ​​the internal air duct of the mounting seat, and the connecting seat is suspended at the junction of the mounting seat and the fixed base, thereby forming a gap on the outer periphery of the connecting seat for airflow.

[0017] Preferably, the fixing base and the heat dissipation fins are integrally formed from aluminum alloy thermally conductive material to eliminate contact thermal resistance between components and improve heat conduction efficiency.

[0018] Preferably, the slide rods are designed to be two in number and symmetrically distributed on both sides of the filter screen. Each slide rod has an independent connecting seat at its end to enhance the stability of the filter screen during movement.

[0019] Preferably, the mounting base includes a hollow housing, the edge contour of the filter screen matches the end face contour of the hollow housing, and the micro fan is fixedly connected inside the hollow housing.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by integrating a through-hole air duct cavity and heat dissipation fins inside the fixed base, and cooperating with the micro fans in the mounting seats at both ends to construct an active air circulation system, the problem of existing high-power ring ceiling lights mainly relying on natural convection heat dissipation of the shell, resulting in low heat dissipation efficiency, rapid light decay of lamp beads, and shortened lifespan is solved. The technical effect of significantly increasing the heat dissipation area, quickly removing the working heat of the lamp strip, effectively reducing the internal temperature of the lamp body, and extending the service life of the lamp is achieved.

[0022] 2. In this utility model, the sliding assembly consisting of a filter screen, a slide rod, and a connecting seat, along with the first and second magnets that attract each other between the connecting seat and the fixed base, solves the problem that the air inlet filter screen of existing fan-lit fixtures is usually fixed with screws or clips, and is cumbersome to disassemble and clean after dust accumulation, requiring auxiliary tools. It achieves the technical effect of quickly disassembling and resetting the filter screen by hand, greatly simplifying the daily cleaning and maintenance process, and ensuring that the air duct remains unobstructed for a long time. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a ring-shaped ceiling light with multi-directional heat dissipation ducts proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the mounting base for a ring-shaped ceiling light with multi-directional heat dissipation ducts proposed in this utility model.

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0026] Legend: 1. Fixed base; 2. LED strip; 3. Mounting bracket; 4. First magnet; 5. Heat dissipation fins; 6. Miniature fan; 7. Second magnet; 8. Filter screen; 9. Slide rod; 10. Connecting bracket. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example:

[0029] Please refer to Figures 1 to 3 This utility model provides a ring-shaped ceiling light with multi-directional heat dissipation air ducts, which aims to solve the structural defects of existing high-power ring lights, such as low heat dissipation efficiency due to the simple internal air duct structure, and the difficulty in disassembling and cleaning by hand after dust accumulation due to the fact that the air inlet filter assembly is usually fixed with screws.

[0030] like Figure 1 and Figure 2 As shown, the main structure of the ring-shaped ceiling light with multi-directional heat dissipation duct includes a fixed base 1, a light strip 2, and a mounting base 3. The fixed base 1 serves as the supporting frame and main heat exchange carrier of the entire lamp. It has a C-shaped structure or a ring structure with open ends. The cross-section of the fixed base 1 is designed as an inverted U-shaped or rectangular tubular structure, thus forming a duct cavity that extends and runs through the length of the fixed base 1. This duct cavity provides physical space for airflow. The light strip 2 is fixedly connected to the bottom outer surface of the fixed base 1 along its contour shape by bonding with a thermally conductive adhesive layer or mechanical fastening. The light strip 2 serves as a light source component, and the heat generated during its operation can be directly conducted to the fixed base 1.

[0031] To achieve active and efficient heat dissipation, mounting bases 3 are sealed and fixedly connected to the disconnected ends of the longitudinal direction of the fixed base 1. The mounting base 3 includes a hollow shell structure, and an airflow channel is formed inside that is connected to the air duct cavity inside the fixed base 1. The two mounting bases 3 serve as the air inlet end and the air outlet end, respectively. A miniature fan 6 is embedded and fixed in the cavity inside the mounting base 3 by bolt brackets or slots. The miniature fan 6 is located inside the mounting base 3 and close to the port of the fixed base 1. When the miniature fan 6 is started, the wind pressure generated drives the external air to enter and flow through the interior of the fixed base 1.

[0032] To further improve heat exchange efficiency, several heat dissipation fins 5 are vertically and downwardly fixed to the inner wall of the air duct cavity inside the fixed base 1. The heat dissipation fins 5 extend and are distributed along the airflow direction of the fixed base 1, and the height of the heat dissipation fins 5 is less than the height of the internal cavity of the fixed base 1 to reserve sufficient airflow passage cross section. The heat dissipation fins 5 and the fixed base 1 are connected by thermal conduction. Preferably, they are made of aluminum alloy thermally conductive material integrally extruded and molded, so that the heat absorbed by the fixed base 1 can be quickly transferred to the heat dissipation fins 5. The heat dissipation fins 5 greatly increase the contact area with the airflow flowing through the air duct, thereby quickly carrying the heat away from the interior of the lamp body.

[0033] To address the technical problems of the aforementioned filter screen being difficult to disassemble and clean by hand and the cumbersome maintenance of traditional screw fixing methods, the core of the technical solution in this embodiment is that the ring-shaped ceiling light with multi-directional heat dissipation air duct also includes a filter screen 8, a slide rod 9, and a connecting seat 10. Furthermore, the movable component formed by the combination of the filter screen 8, the slide rod 9, and the connecting seat 10 forms a specific sliding guide and magnetic positioning cooperation relationship with the aforementioned mounting seat 3 and fixed base 1.

[0034] Please refer to the following carefully. Figure 2 and Figure 3 The core structure is described in detail below: The filter screen 8 is attached to the end face of the mounting base 3 away from the fixed base 1. The outer contour size of the filter screen 8 is adapted to the end face contour size of the mounting base 3 to completely cover the air inlet. The filter screen 8 is mainly composed of a frame and a metal mesh set in the frame. Two slide rods 9 are vertically fixedly connected to the side surface of the filter screen 8 facing the mounting base 3. The slide rods 9 are distributed parallel to the central axis of the mounting base 3, and several annular anti-slip grooves are evenly spaced along the axial direction on the outer circumferential surface of the slide rods 9. The annular anti-slip grooves are used to increase the surface roughness of the slide rods 9 and store grease. The length of the slide rods 9 is designed to be greater than the axial length of the mounting base 3 along the airflow direction.

[0035] Meanwhile, a guide hole is provided on the wall of the mounting base 3 for the slide rod 9 to pass through. In the assembled state, the slide rod 9 passes through the guide hole and forms a sliding connection with the mounting base 3. This hole-shaft matching structure provides precise linear guidance for the movement of the slide rod 9 and the filter screen 8, preventing deflection or jamming during the pulling process. The end of the slide rod 9 away from the filter screen 8 extends into the inner cavity of the mounting base 3 and is fixedly connected to the connecting seat 10. The connecting seat 10 is suspended at the junction of the mounting base 3 and the fixed base 1, and the cross-sectional area of ​​the connecting seat 10 is smaller than the cross-sectional area of ​​the internal air duct of the mounting base 3, thereby leaving an annular gap between the outer periphery of the connecting seat 10 and the inner wall of the mounting base 3 for airflow to pass through, ensuring that the airflow circuit of the micro fan 6 is unobstructed.

[0036] For the key magnetic positioning structure, the connecting seat 10 has a first mounting groove on the side of the fixed base 1. The first magnet 4 is fixedly embedded in the first mounting groove by adhesive or interference fit. The fixed base 1 has a second mounting groove at the corresponding position on the end face. The second magnet 7 is fixedly embedded in the second mounting groove. The mounting positions of the first magnet 4 and the second magnet 7 are corresponding to each other and have opposite polarities. The end faces of the two are flush or slightly concave to their respective mounting planes to ensure tight contact during adsorption.

[0037] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0038] In a preferred embodiment, to ensure the flatness and reliability of the magnetic fixation, the connecting seat 10 has a first mounting groove on the side surface facing the fixing base 1. The first magnet 4 is fixedly embedded in the first mounting groove by strong adhesive or interference fit. At the same time, the end face of the fixing base 1 has a corresponding second mounting groove, and the second magnet 7 is fixedly embedded in the second mounting groove. The mounting depth of the first magnet 4 and the second magnet 7 is designed so that their end faces are flush with or slightly concave with their respective mounting planes. This structure allows the connecting seat 10 to fit tightly against the end face of the fixing base 1 when the filter screen 8 is closed, avoiding assembly gaps caused by protruding magnets.

[0039] As another preferred embodiment, in order to improve the operating feel and prevent hand slippage, the outer circumferential surface of the slide rod 9 is provided with several annular anti-slip grooves evenly spaced along the axial direction. The annular anti-slip grooves increase the frictional damping when the fingers contact it, and the length of the slide rod 9 is designed to be greater than the axial length of the mounting base 3 along the airflow direction. When the filter screen 8 is completely attached to the end face of the mounting base 3, the connecting seat 10 can extend into the inner side of the mounting base 3 and contact the fixed base 1. In addition, the number of slide rods 9 is preferably two, and the two slide rods 9 are symmetrically distributed on both sides of the filter screen 8. The end of each slide rod 9 is independently connected to the connecting seat 10 and the first magnet 4. This double rod and double magnet structure ensures that the filter screen 8 is subjected to force balance and prevents loosening or tilting during long-term use.

[0040] To ensure unobstructed internal airflow and maximize heat dissipation efficiency, the heat dissipation fins 5 in the internal airflow cavity of the fixed base 1 are vertically fixed to the inner top wall of the fixed base 1. The height of the heat dissipation fins 5 is designed to be less than the overall height of the internal cavity of the fixed base 1, thereby reserving an airflow channel between the bottom of the heat dissipation fins 5 and the inner bottom wall of the fixed base 1 to avoid airflow obstruction. At the same time, the cross-sectional area of ​​the connecting seat 10 is designed to be significantly smaller than the cross-sectional area of ​​the internal airflow of the mounting base 3, so that when the connecting seat 10 is suspended at the junction of the mounting base 3 and the fixed base 1, an annular flow gap is formed between its outer periphery and the inner wall of the airflow, ensuring that the airflow after heat exchange can be smoothly discharged.

[0041] In terms of material selection and molding process, the fixed base 1 and the heat dissipation fins 5 are preferably made of aluminum alloy thermally conductive material through an integrated extrusion molding process. This integrated structure eliminates contact thermal resistance, so that the heat generated by the light strip 2 can be conducted to the end of the heat dissipation fins 5 with the highest efficiency. The light strip 2 is directly bonded and fixed to the flat bottom surface of the fixed base 1 through a backing adhesive layer with a high thermal conductivity. The mounting base 3 is designed as a hollow shell structure. The micro fan 6 is firmly connected to the inner wall of the hollow shell through a bolt bracket and is located in the area between the slide rod 9 and the fixed base 1, which can continuously provide stable circulation power for the heat dissipation system.

[0042] Working principle: When the ceiling light is in the lighting state, the light strip fixed at the bottom of the mounting base is powered on and emits light, which is accompanied by the generation of heat. The heat is quickly conducted through the thermal conductive adhesive layer to the aluminum alloy mounting base, and then to the heat dissipation fins densely distributed in the air duct cavity inside the mounting base. At this time, the miniature fan embedded in the mounting base starts working simultaneously, creating a directional airflow circulation system inside the light body.

[0043] Under the suction of the miniature fan, the cold outside air first passes through the filter on the end face of the mounting base. The filter blocks dust and impurities in the air. The clean airflow then enters the interior of the mounting base along the space around the slide rod and is pushed into the ventilation duct cavity inside the fixed base. The high-speed airflow undergoes intense heat exchange as it flows through the heat dissipation fins and the inner wall of the fixed base, continuously carrying away the accumulated heat. Finally, the hot air carrying heat is discharged from the mounting base at the other end of the lamp body. This active air-cooling mechanism effectively reduces the operating temperature of the lamp strip and extends the service life of the equipment.

[0044] When the filter screen needs cleaning and maintenance due to dust accumulation on its surface after a period of use, the operator only needs to hold the annular anti-slip groove of the exposed part of the filter screen or slide rod and pull it outward. Once the applied pulling force overcomes the magnetic attraction between the first magnet on the connecting seat and the second magnet on the fixed base, the first magnet will separate from the second magnet. The slide rod will then slide smoothly outward in the guide hole of the mounting base wall, driving the connecting seat out of the junction area between the fixed base and the mounting base, thereby completely separating the filter screen from the end face of the mounting base for washing or dust removal.

[0045] When cleaning is complete and resetting is required, push the slide bar into the guide hole of the mounting base until the filter screen is once again attached to the end face of the mounting base. At this time, the first magnet on the connecting base moves to the position opposite to the second magnet on the fixed base. Under the action of magnetic force, the first magnet and the second magnet automatically attract and lock together, thus firmly keeping the filter screen in a closed state. The entire disassembly and assembly process does not require any auxiliary tools such as screwdrivers, which greatly simplifies the daily maintenance process.

[0046] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes 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 ring-shaped ceiling light with multi-directional heat dissipation ducts, comprising: The fixed base (1), the light strip (2) and the mounting base (3) are fixedly connected to the bottom of the fixed base (1), and the mounting base (3) is connected to both ends of the fixed base (1). The mounting base (3) is equipped with a miniature fan (6). Its features are: The fixed base (1) has an air duct inside, and several heat dissipation fins (5) are fixed inside the air duct. The ring-shaped ceiling light with multi-directional heat dissipation air duct also includes a filter (8), a slide rod (9), a connecting seat (10), a first magnet (4), and a second magnet (7); the filter (8) is located at one end of the mounting base (3) away from the fixed base (1), one end of the slide rod (9) is fixedly connected to the filter (8), and the other end slides into the interior of the mounting base (3) and is fixedly connected to the connecting seat (10); The first magnet (4) is disposed on the connecting seat (10), and the second magnet (7) is disposed on the fixed base (1); the filter screen (8) is kept in the position of closing the port of the mounting seat (3) by the magnetic attraction of the first magnet (4) and the second magnet (7).

2. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, The mounting base (3) has a guide hole on its wall, and the slide rod (9) passes through the guide hole and slides with the mounting base (3); the outer surface of the slide rod (9) has several anti-slip grooves.

3. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, The connecting seat (10) has a first mounting groove on the side facing the fixed base (1), and the first magnet (4) is embedded in the first mounting groove; the end face of the fixed base (1) has a second mounting groove, and the second magnet (7) is embedded in the second mounting groove.

4. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, The heat dissipation fins (5) extend along the length of the fixed base (1) and are thermally connected to the inner wall of the fixed base (1); the airflow direction of the micro fan (6) is consistent with the airflow direction inside the fixed base (1).

5. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, The fixed base (1) has an overall C-shaped structure, and the cross-section of the fixed base (1) is an inverted U-shaped or rectangular tubular structure. The light strip (2) extends along the outline of the fixed base (1).

6. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, The cross-sectional area of ​​the connecting seat (10) is smaller than the cross-sectional area of ​​the internal air duct of the mounting seat (3). The connecting seat (10) is suspended at the junction of the mounting seat (3) and the fixed base (1) to form an airflow channel.

7. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, The fixed base (1) and the heat dissipation fins (5) are integrally formed from aluminum alloy thermally conductive material, and the light strip (2) is bonded and fixed to the bottom surface of the fixed base (1) by thermally conductive adhesive layer.

8. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, There are two slide rods (9), which are symmetrically distributed on both sides of the filter screen (8). Each slide rod (9) is connected to an independent connecting seat (10) and the first magnet (4) at its end.

9. The ring-shaped ceiling light with multi-directional heat dissipation ducts according to claim 1, characterized in that, The mounting base (3) includes a housing, the edge contour of the filter (8) is adapted to the end face contour of the housing, and the micro fan (6) is located in the area between the slide bar (9) and the fixed base (1).

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