Dual light source heat dissipation type mirror headlamp structure

Abstract

This utility model relates to a dual-light source heat dissipation vanity light structure, belonging to the field of lighting fixture technology. The vanity light includes a mounting box, a heat sink, and two optical components. The mounting box has a frame structure with an integrated groove on the back. The heat sink is located on the front of the mounting box, with slots on both sides. The two optical components are respectively located on the upper and lower sides of the heat sink. Each optical component includes an aluminum substrate, an LED light source, and a light-transmitting cover. The aluminum substrate is fixedly connected to the heat sink, and the light-transmitting cover is snapped into the slot. A mounting plate with mounting holes is centrally located in the groove on the back of the mounting box, and a driver and switch assembly are integrated at the bottom of the groove. This utility model achieves uniform and soft vanity lighting through a dual-light source side-mounted layout, significantly improves heat dissipation efficiency through the direct connection between the centrally located heat sink and the aluminum substrate, and achieves a compact structure, stable installation, and convenient maintenance through modular electrical integration on the back, making it particularly suitable for high-humidity environments such as bathrooms.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, specifically to a mirror light suitable for bathrooms, dressing rooms, and other places, and more particularly to a mirror light with a dual light source structure and integrated heat dissipation and electrical installation functions. Background Technology

[0002] Vanity lights are lighting fixtures installed in front of or above mirrors, primarily used to provide uniform illumination for the face or specific areas. They are widely used in home bathrooms, hotel restrooms, and dressing rooms. Their lighting effect directly impacts the user's visual experience and functionality, therefore, high requirements are placed on light uniformity, color temperature adjustability, installation stability, and heat dissipation performance.

[0003] Currently, most vanity lights on the market use a single row of LED light sources with a diffuser, concentrating the light source in the center of the fixture. While this provides basic illumination, it suffers from insufficient light uniformity, often resulting in uneven lighting with a bright center and dark sides. Furthermore, with the increase in LED power, heat dissipation has become increasingly prominent. Traditional vanity lights often use rear heat sinks or natural convection cooling, which has limited heat dissipation efficiency. Prolonged use can lead to accelerated LED light decay, affecting the lifespan of the fixture. In terms of electrical layout, components such as drivers and switches are often distributed or externally mounted, not only taking up space but also increasing the complexity of installation and maintenance.

[0004] Existing vanity lights typically fail to systematically integrate optics, heat dissipation, and electrical installation in their structural design, making it difficult to balance lighting effect, heat dissipation performance, and structural compactness. Especially in high-power, multi-color-temperature adjustable vanity lights, achieving uniform illumination, efficient heat dissipation, and a rational layout of electrical components without increasing the lamp body size has become a pressing technical problem to be solved in this field.

[0005] Based on this, the present invention aims to provide a mirror light with a compact structure, uniform light effect, good heat dissipation and easy installation and maintenance, so as to overcome the above-mentioned shortcomings of the prior art. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects of existing vanity lights, such as poor lighting uniformity, limited heat dissipation efficiency, loose electrical layout and insufficient installation stability, and to provide a dual-source heat dissipation vanity light structure that is compact, has uniform light effect, good heat dissipation, convenient installation and high electrical integration.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] A dual-light source heat dissipation front light structure includes a mounting box, a heat sink, and two optical components. The mounting box is a frame structure with a accommodating space, and its back is provided with an inwardly recessed groove. The heat sink is located on the front side of the mounting box. The two optical components are respectively located on opposite sides (e.g., the upper and lower sides) of the heat sink. Each optical component includes an aluminum substrate, an LED light source disposed on the aluminum substrate, and a light-transmitting cover covering the front of the LED light source.

[0009] Furthermore, the heat sink has slot structures on both sides for snapping and fixing the light-transmitting cover.

[0010] Furthermore, the aluminum substrate is fixedly connected to the heat sink via a connector to achieve heat conduction.

[0011] Furthermore, a mounting plate, a driver, and a switch assembly are disposed within the groove. The mounting plate is located in the center of the groove and has mounting holes thereon; the driver is fixed to the bottom of the groove; the switch assembly includes a switch bracket and a control button, the switch bracket is fixed to the bottom of the groove, and the control button extends through the side wall of the groove.

[0012] Furthermore, the heat sink is a long strip of extruded aluminum profile with multiple heat dissipation fins on its body to increase the heat dissipation area.

[0013] Compared with the prior art, the present invention has the following significant advantages:

[0014] 1. Good uniformity of illumination and soft light: The structure of dual optical components symmetrically arranged on both sides of the heat sink realizes dual light source output, effectively expands the illumination area and avoids the problem of central bright spot of single light source, making the lighting in front of the mirror more uniform and shadow-free, especially suitable for fine facial lighting.

[0015] 2. High heat dissipation efficiency and long lifespan: By directly fixing two aluminum substrates to both sides of the heat sink, the heat generated by the LED light source can be directly and efficiently conducted to the central heat sink through the aluminum substrates, and then quickly dissipated through the heat dissipation fins on it. This "sandwich" heat dissipation structure greatly improves thermal management efficiency, effectively delays LED light decay, and ensures a long lifespan for the lamp.

[0016] 3. Compact structure and high integration: All electrical components, such as drivers and switch assemblies, are integrated into a dedicated recess on the back of the mounting box, with a centrally located mounting plate providing main support. This achieves a highly modular and concealed layout for the electrical components. This not only makes the luminaire look simple but also reduces the overall size and installation complexity.

[0017] 4. Stable installation and convenient maintenance: The mounting plate is firmly connected to the sidewalls of the groove via its folded edges, providing a stable and reliable installation base for the entire lamp. The light-transmitting cover is snapped into the heat sink via a slot, making it easy to install and remove, facilitating later cleaning or replacement of the light source. The electrical components are clearly laid out for easy maintenance.

[0018] 5. Excellent protective performance and wide range of applications: Through the combination of the mounting box and the light-transmitting cover, an effective sealed structure (such as IP44 protection rating) can be formed, providing dust and splash protection, meeting the requirements for use in humid environments such as bathrooms. At the same time, it supports multiple color temperature adjustments and a high color rendering index, adapting to different scenarios and atmospheres. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the dual-light source heat dissipation front light of this utility model, mainly showing its front structural layout and the assembly relationship of each major component.

[0020] Figure 2 for Figure 1 The schematic diagram of the back structure of the vanity light shown mainly illustrates the layout and installation method of the electrical components in the groove on the back of the mounting box.

[0021] Figure 3 for Figure 1 The diagram shown illustrates the structure of the front light behind the hidden light-transmitting cover, highlighting the installation relationship between the aluminum substrate and the heat sink, as well as the structure of the heat sink itself.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Mounting box; 11. Groove; 2. Heat sink; 21. Slot structure; 31. Aluminum substrate; 32. Light-transmitting cover; 33. Connector; 4. Mounting plate; 41. Mounting hole; 42. Folded edge; 5. Driver; 6. Switch assembly; 61. Switch bracket; 62. Control button. Detailed Implementation

[0024] The technical solution of this utility model will be described in detail and completely below with reference to the accompanying drawings. This description is intended to enable any person skilled in the art to understand and implement this utility model based on the description herein. The described embodiments are some preferred embodiments of this utility model, but not all. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

[0025] Please see Figures 1 to 3 This invention provides a high-performance, compact dual-light-source heat dissipation vanity light structure. This vanity light is particularly suitable for bathrooms, dressing rooms, and other places where high requirements are placed on light uniformity, moisture resistance, and aesthetics.

[0026] like Figure 1 As shown, the overall appearance of this vanity light is elongated, and its core structure includes a mounting box 1 that serves as both the main support and the outer shell. The mounting box 1 is preferably made of extruded aluminum alloy profile, forming a rectangular frame structure with excellent structural strength and corrosion resistance. The front panel of the mounting box 1 creates a fully or semi-open mounting space to accommodate the optical system and heat dissipation system. The back of the mounting box 1, as shown... Figure 2 As shown, the entire structure is machined inward to form a groove 11 of uniform depth. This groove 11 is used to centrally and orderly arrange all electrical components and installation structures, thereby achieving modular integration, making the back of the lamp flat and beautiful, and facilitating wall mounting.

[0027] The heat sink 2 is the core heat dissipation component of this invention, and it is fixed within the mounting space on the front side of the mounting box 1. The heat sink 2 is preferably manufactured using an aluminum alloy with high thermal conductivity (such as 6063 aluminum) through an integral extrusion molding process to ensure continuous heat conduction. Figure 3 As clearly shown, the body of the heat sink 2 is elongated and plate-shaped, with a flat mounting surface on the side facing the interior of the mounting box 1 (i.e., the back side). In a more optimized embodiment, the other exposed side of the heat sink 2 (i.e., the front side) can be densely equipped with multiple heat dissipation fins arranged parallel to each other along its length. These heat dissipation fins can significantly increase the heat dissipation surface area and efficiently dissipate heat into the environment through natural or induced convection with the air. One or more heat pipes can also be embedded inside the heat sink 2, or a vapor chamber can be placed below the interface where it contacts the aluminum substrate 31 to further accelerate the diffusion of heat from the heat source to the entire heat sink 2 and eliminate localized hot spots.

[0028] The most distinctive design feature of this invention lies in the arrangement of its dual optical components. The two optical components are not arranged side-by-side, but rather mounted on opposite sides of the heat sink 2, specifically the upper and lower sides in this embodiment, forming a "sandwich" structure together with the heat sink 2. Each optical component comprises three key parts: an aluminum substrate 31, an LED light source, and a light-transmitting cover 32. The aluminum substrate 31 is a long strip circuit board with a copper-clad aluminum substrate, possessing excellent insulation and thermal conductivity. The LED light source specifically consists of multiple surface-mount LED beads, soldered to the circuit traces of the aluminum substrate 31 in a specific circuit topology (such as the series-parallel combination in this embodiment). These LED beads preferably use the 2835 package specification, offering high luminous efficacy per chip and facilitating high-density board layout to achieve a uniform line light source effect. The aluminum substrate 31 is tightly secured to the flat back of the heat sink 2 by connectors 33 such as screws, allowing the heat generated by the LED light source to be directly conducted to the heat sink 2 body almost without obstruction, achieving the shortest heat path.

[0029] The light-transmitting cover 32 covers the front of the LED light source. Its main function is to protect the LED light source and to perform secondary light distribution and diffusion on the emitted light to obtain a soft, glare-free lighting effect. The light-transmitting cover 32 is preferably injection molded from optical-grade PC (polycarbonate) or PMMA (acrylic) material, which has high light transmittance and good resistance to ultraviolet aging. Its cross-section can be designed as a specific arc shape (such as parabolic or elliptical) to achieve wider or more concentrated light distribution. The inner surface of the light-transmitting cover 32 can be designed with a microprism array or a frosted texture to further optimize light distribution. To achieve quick and reliable installation without the need for glue or additional fasteners, this invention features continuous slot structures 21 specifically provided on both sides of the length direction of the heat sink 2. The light-transmitting cover 32 has elastically deformable buckles on both sides. During installation, simply align the light-transmitting cover 32 with the position and press lightly to insert the buckles into the slot structure 21 of the heat sink 2 to achieve a firm snap-fit. During disassembly, simply pry it open from one side, making maintenance extremely convenient.

[0030] Please refer to this carefully. Figure 2 This invention showcases its ingenious design in terms of electrical integration and installation stability. A rectangular mounting plate 4 is centrally located within the groove 11 on the back of the mounting box 1. This mounting plate 4 is made of cold-rolled steel sheet with a thickness of at least 1.5mm, stamped and bent, possessing high mechanical strength. The two sides of the mounting plate 4 are bent upwards (towards the opening of the groove 11) to form vertical folded edges 42. These folded edges 42 are securely connected to the sidewalls of the groove 11 by several hexagonal socket head cap screws, thus suspending and firmly fixing the mounting plate 4 in the center of the groove 11. The mounting plate 4 is stamped with multiple elongated universal mounting holes 41, and different hole spacings can be reserved according to different installation standards (such as American and European standards). This allows the lamp to flexibly adapt to various wall mounting brackets or be directly fixed to junction boxes. This design, which concentrates the main stress point on the central rigid mounting plate 4, greatly improves the stability and torsional resistance of the entire lamp after wall installation, preventing loosening due to long-term use or slight vibration.

[0031] The space at the bottom of the recess 11 below the mounting plate 4 is effectively utilized to house electrical components. The driver 5, serving as the power supply and control core for the LED light source, is directly fixed to the flat bottom of the recess 11 with screws through mounting holes on its housing. The driver 5 is preferably a smart driver with wide voltage input (e.g., AC 120-277V), constant current output, and support for 0-10V dimming, DALI, or Bluetooth Mesh dimming and color temperature adjustment. Its fully sealed potting process ensures long-term reliability in humid environments. The switch assembly 6 is located next to the driver 5, comprising a metal stamped switch bracket 61 and a push-button control button 62. The switch bracket 61 is also fixed to the bottom of the recess 11, supporting a tactile switch on top. The control button 62 is mounted on the tactile switch from the inside and extends outward precisely through a pre-drilled circular hole in the side wall of the recess 11. Users can switch the light on / off, change the color temperature, or dim the light by pressing this button. To improve waterproofing, a silicone sealing ring can be installed between the control button 62 and the hole wall.

[0032] The assembly process of this utility model is clear and straightforward: First, fix the heat sink 2 to the front of the mounting box 1; then, screw the two aluminum substrates 31 with the LED light source already welded to them onto the upper and lower sides of the heat sink 2; next, install the driver 5, switch assembly 6, and other electrical components at the bottom of the groove 11 and complete all electrical connections; then, fix the mounting plate 4 to the middle of the groove 11 through its folded edge 42; finally, align the upper and lower light-transmitting covers 32 with the slots 21 and press them in to complete the overall assembly. During installation, simply fix the wall-mounted component to the mounting holes 41 on the mounting plate 4, and then hang or lock the entire lamp.

[0033] In summary, this utility model resolves the contradiction between uniform lighting and efficient heat dissipation through a sandwich structure with a centrally located heat sink and dual side-mounted light sources; and it resolves the contradiction between cluttered electrical layout and stable installation through an integrated back groove design. Details such as the snap-fit ​​design of the light-transmitting cover 32, the optimized structure of the heat sink 2, the central reinforcement structure of the mounting plate, and the rational layout of the drive and switch collectively constitute a complete, efficient, and easy-to-manufacture and install vanity light solution.

[0034] Although the present invention has been described in detail above with reference to preferred embodiments, those skilled in the art should understand that several modifications and improvements can be made without departing from the principles and spirit of the present invention. For example, the number of optical components is not limited to two; depending on the length and power requirements of the lamp, the heat sink 2 can be designed to support the installation of multiple sets of optical components side by side; the light-transmitting cover 32 can also be replaced by different combinations of light-distributing lenses; the mounting plate 4 can be fixed by riveting or snap-fit ​​quick-installation structures in addition to bolts; furthermore, a detachable end cap can be added to the end of the lamp to facilitate wiring and maintenance. These changes and improvements all fall within the protection scope of the present invention as defined by the appended claims.

Claims

1. A dual light source heat dissipating headlamp structure, characterized in that, include: The mounting box (1) has a frame structure with a storage space; A radiator (2) is disposed on the front side of the mounting box (1); Two optical components are respectively disposed on opposite sides of the heat sink (2); each optical component includes an aluminum substrate (31), an LED light source disposed on the aluminum substrate (31), and a light-transmitting cover (32) covering the front of the LED light source; The heat sink (2) has slot structures (21) on both sides for snapping and fixing the light-transmitting cover (32).

2. The mirror lamp structure according to claim 1, wherein The aluminum substrate (31) is fixedly connected to the heat sink (2) via a connector (33), so that the heat generated by the LED light source can be conducted to the heat sink (2).

3. The mirror lamp structure according to claim 1, wherein The radiator (2) is a long strip of extruded aluminum profile, and its body is provided with several heat dissipation fins.

4. The mirror lamp structure according to claim 1, wherein The mounting box (1) has an inwardly recessed groove (11) on its back, which is used to accommodate electrical mounting components.

5. The mirror lamp structure according to claim 4, wherein It also includes a mounting plate (4), which is disposed in the middle of the groove (11), and the mounting plate (4) has mounting holes (41) for fixing the front light to the mounting surface.

6. The mirror lamp structure according to claim 5, wherein The groove (11) is also provided with a driver (5) and a switch assembly (6); the driver (5) is fixed to the bottom of the groove (11); the switch assembly (6) includes a switch bracket (61) and a control button (62), the switch bracket (61) is fixed to the bottom of the groove (11), and the control button (62) extends through the side wall of the groove (11).

7. The mirror lamp structure according to claim 5, wherein The mounting plate (4) is a rectangular plate with folded edges (42) on both sides that bend toward the sidewall of the groove (11). The folded edges (42) are connected to the sidewall of the groove (11) by fasteners.

8. The mirror lamp structure according to claim 1, wherein The LED light source is a 2835 packaged LED chip, and the LED light sources in the two optical components are connected in series and / or in parallel to form a specific circuit topology.

9. The mirror lamp structure according to claim 1, wherein The color rendering index Ra of the vanity light is ≥90, and the color temperature is adjustable within the range of 2200K to 4000K.

10. The mirror lamp structure according to claim 1, wherein The mounting box (1) and the light-transmitting cover (32) together form a sealed structure with a protection level of not less than IP44.

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