Vertical heat dissipation shell structure of anti-dazzle LED down lamp

Abstract

The invention discloses a vertical heat dissipation shell structure of an anti-dazzle LED down lamp, relates to the technical field of heat dissipation of LED down lamps, and is used for solving the problem that the load and the service life of a subsequent LED down lamp are reduced due to the fact that corresponding control over temperature rise of a shell of the LED down lamp is not carried out by adopting corresponding monitoring means. According to the LED down lamp, materials and structures are improved on the basis of an original light guide plate and an original reflection cup, the glare problem caused by the LED down lamp is reduced, meanwhile, according to installation of the containing shell, the conduction detection mechanism drives the fan to rotate in the down lamp operation process, heat loss on the heat dissipation outer fins is accelerated through generated airflow, and the heat dissipation efficiency is improved. Meanwhile, according to the temperature change in the down lamp obtained by the temperature sensor, the rotating direction and the rotating speed of the fan are controlled, external air is driven to directly act in the housing, heat loss of the down lamp is further accelerated, and normal operation of the down lamp is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of LED downlight heat dissipation, and particularly to a vertical heat dissipation housing structure for an anti-glare LED downlight. Background Technique

[0002] The LED light source used in the anti-glare high-color-rendering LED downlight is a light-emitting diode, which is a semiconductor device that can convert electrical energy into light energy. Using a solid-state semiconductor chip as the light-emitting material, when a forward voltage is applied across both ends, the carriers in the semiconductor recombine to cause photon emission and generate light. LEDs made of different materials will emit light of different wavelengths to form different colors, and are widely used in various fields such as various indications, displays, decorations, backlights, general lighting, and urban night scenes;

[0003] Similar to the heat dissipation of a computer chip, a fan is installed on the original heat dissipation guide frame. While using the heat dissipation guide frame for heat conduction, the heat dissipation on the heat dissipation guide frame is accelerated through the fan. As mentioned in the patent with the publication number CN220958391U, a heat conduction fan is installed on the LED downlight, and the heat sink, heat conduction holes, and fan work together to accelerate the heat dissipation of the LED downlight housing; however, improving the air duct of the LED downlight housing only increases the heat dissipation amount on the housing. Specifically, for the heat change generated during the use time of the downlight, no corresponding actions are taken, resulting in insufficient heat dissipation, lack of monitoring of the surface temperature of the downlight housing, and the corresponding high-heat treatment process;

[0004] Therefore, we propose a vertical heat dissipation housing structure for an anti-glare LED downlight. Summary of the Invention

[0005] The purpose of the present invention is to provide a vertical heat dissipation housing structure for an anti-glare LED downlight to solve the problem in the above background technique that the corresponding control of the temperature rise of the LED downlight housing is not carried out by using corresponding monitoring means, resulting in subsequent LED downlight load and reduced service life;

[0006] To achieve the above purpose, the present invention provides the following technical solution: A vertical heat dissipation housing structure for an anti-glare LED downlight, including a cover shell, a heat dissipation outer fin is fixed to the top of the cover shell by bolts, a placement shell is fixed to the top of the heat dissipation outer fin by bolts, and a sleeve is fixedly connected inside the cover shell;

[0007] A conduction detection mechanism is installed and fixed on the placement shell. The conduction detection mechanism includes a rotating shaft, a deflecting rod, a movable sleeve, and a dust-proof plate. The end of the motor installed inside the placement shell is fixedly connected to the rotating shaft. The outer wall of the rotating shaft located inside the sleeve is symmetrically and movably connected to the deflecting rod, and a steel ball is fixedly connected to the end of the deflecting rod;

[0008] A dust shield is slidably connected inside the outer heat dissipation fins and at the top of the cover. The top of the dust shield is movably connected with a movable sleeve, and the movable sleeve is slidably connected with the outer wall of the rotating shaft. The outer wall of the movable sleeve is symmetrically and rotatably connected with connecting rods, and one end of each connecting rod is movably connected with one end of a deflecting rod.

[0009] Furthermore, a reflector cup is fixedly connected inside the cover. A lamp board is fixed on the top of the cover and on the reflector cup through bolts. A spring is installed on the top of the lamp board, and the other side of the spring abuts against the dust shield.

[0010] Furthermore, a temperature sensor is installed inside the placement shell, and a fan is installed on the placement shell and sleeved on the side of the motor.

[0011] Furthermore, sliding grooves are evenly formed on the outer wall of the sleeve. One side of the dust shield respectively penetrates through the sleeve and is slidably connected with the sleeve. Heat dissipation inner fins are evenly fixedly connected to the top outside the sleeve of the dust shield.

[0012] Furthermore, buckles are symmetrically installed on both sides of the top of the cover, and a light guide plate is fixedly connected to the bottom of the cover.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] In the present invention, the installation of the light guide plate and the reflector cup on the cover enables the direct light of the downlight within 30 degrees of the oblique angle when viewed directly by the human eye to refract downward on the light-emitting interface, changing the direction of the strong light directly emitted by the lamp and no longer directly shining into the human eye, thereby reducing harmful glare. At the same time, the conduction detection mechanism on the placement shell monitors the operating temperature of the downlight. Through the control of the motor speed and rotation direction, the deflecting rod on the rotating shaft is driven to move. At the same time, the rotation of the fan accelerates the dissipation of the surface temperature of the outer heat dissipation fins. In the high-temperature state, through the adjustment of the air duct, the air flow directly acts on the lamp board through the dust shield and is discharged on the outer heat dissipation fins, completing the circulation to accelerate the dissipation of the internal heat of the downlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the anti-glare LED downlight of the present invention;

[0016] Figure 2 is a schematic top view structure diagram of the anti-glare LED downlight of the present invention;

[0017] Figure 3 is a schematic bottom view structure diagram of the anti-glare LED downlight of the present invention;

[0018] Figure 4 is a schematic installation structure diagram of multiple groups of heat dissipation inner fins on the dust shield at the top of the cover of the present invention;

[0019] Figure 5Schematic diagram of the contact structure between the top spring of the lamp board and the heat dissipation board of the present invention;

[0020] Figure 6 Schematic cross-sectional structure diagram of the vertical heat dissipation housing structure of the anti-glare LED downlight of the present invention;

[0021] Figure 7 Schematic front view of the vertical heat dissipation housing section of the anti-glare LED downlight of the present invention.

[0022] In the figure: 1, cover shell; 2, buckle; 3, light guide plate; 4, reflector cup; 5, external heat dissipation fins; 6, placement shell; 7, conduction detection mechanism; 701, rotating shaft; 702, offset rod; 703, steel ball; 704, movable sleeve; 705, connecting rod; 706, dust-proof plate; 8, fan; 9, lamp board; 10, spring; 11, internal heat dissipation fins; 12, sleeve. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-7 , the present invention provides a technical solution:

[0025] Embodiment 1: Glare refers to the visual condition in which, due to an inappropriate brightness distribution in the field of view, or an extreme brightness contrast in space or time, visual discomfort and a reduction in the visibility of objects are caused, a feeling of light that the human eye cannot adapt to is generated within the field of view, which may cause disgust, discomfort or even loss of visual acuity, and an excessive brightness appears in a certain local area in the field of view or there is a large brightness change before and after;

[0026] To improve glare, it is necessary to comprehensively process from several aspects such as softening the light-emitting surface, reducing and controlling the shielding angle, and micro-prismatic optical design. As Figure 3 and Figure 5 shown, a reflector cup 4 is added to the bottom of the entire cover shell 1. The reflector cup 4 adopts an innovative concave hexagonal micro-prismatic light guide structure, so that the direct light within 30 degrees of the oblique upward view of the human eye is refracted downward at the light-emitting interface, thereby achieving the effect of reducing harmful glare and increasing the effective illuminance in the main viewing direction;

[0027] In principle, the depth of the concave hexagon is one-third of the direct light path, and the diameter of its circumscribed circle is approximately equal to twice the thickness of the plate to the microcrystalline surface. Each prismatic unit has a reflection part, a light incident part, and a light output part, which interact with each other. Eventually, the formed prismatic plate achieves the goal that after the Lambertian light source with a half-intensity angle of 120° enters the light control prismatic plate, the half-intensity angle is reduced to less than 90°, effectively reducing glare. The reflector cup 4 is made of materials such as PMMA, PC, and PS, and is added with multi-level nano-diffusion powder to make the measured haze reach more than 97%. The manufacturing of the prismatic surface adopts the laser etching microcrystalline surface die-casting process, which can ensure the consistency and weather resistance of the product;

[0028] Another way to solve glare is to add a material and structure similar to a diffusing lens on the light projection path. The basic principle is to change the light path so that the strong direct light emitted by the lamp changes direction and no longer shines directly into the eyes. The light shape of the light guide plate 3 is the most standard, and there can be an obvious bright-dark cutting line. Through the function of condensing light, the problem of light scattering is solved, and the direct luminance of the light output surface of the lamp is solved. A glass or plastic component used in the lamp can change the direction of light or control the light distribution situation, and the light shape is specially designed so that the light emitted by the light guide plate 3 will not shine into the eyes of the observer below. Its basic principle is to add high-quality electronic-grade nano-diffusion powder to the PS material for single-sided or double-sided chemical melting, thereby changing the direction of light, making the strong glare of the LEDs distributed in a dot matrix and in a single direction on the base become soft and scattered eye-protecting light, and combining improvements in structure and materials to achieve the anti-glare function of the LED downlight;

[0029] To facilitate the installation of the anti-glare LED downlight, buckles 2 are installed on both sides of the cover 1. At the same time, to facilitate the efficient heat dissipation of the downlight, a conduction detection mechanism 7 is fixedly connected to the heat dissipation outer fins 5 on the top of the cover 1. The conduction detection mechanism 7 can drive the fan 8 in the placement shell 6 to rotate, and use the fan 8 to accelerate the air flow on the side of the heat dissipation outer fins 5 to achieve the rapid cooling of the LED downlight housing.

[0030] Example 2: One of the important factors to improve the working stability of the LED downlight is its own heat dissipation. Considering the installation of the downlight and its own shape design, usually the heat dissipation outer fins 5 are installed behind the cover 1 to expand the heat dissipation area during the operation of the entire downlight;

[0031] To improve the air circulation rate on the back side of the cover 1, the placement shell 6 is installed on the top of the original heat dissipation outer fins 5, as Figure 1 shown. A conduction detection mechanism 7 is installed in the placement shell 6, that is, a transmission motor and a temperature detection sensor are installed on the placement shell 6. On the one hand, the motor drives the fan 8 on the placement shell 6 to rotate, and on the other hand, the temperature detection sensor detects the temperature on the back of the cover 1;

[0032] As Figure 6 andFigure 7 As shown, a lamp board 9 is installed at the top of the reflective cup 4 on the side of the housing 1. When the LED lamp beads installed on the lamp board 9 work, high temperature will be generated. At this time, the temperature sensor can detect the temperature change inside the inner side of the heat dissipation outer fins 5. When the collected temperature value reaches the set threshold, the fan 8 on the placement shell 6 is automatically controlled to rotate, generating an upward airflow at the top of the housing 1, accelerating the heat dissipation from the heat dissipation outer fins 5 and the heat dissipation inner fins 11, and reducing the working temperature of the LED downlight;

[0033] The upward airflow generated by the forward rotation of the fan 8 is the first heat dissipation mode of the downlight. Along with the motor driving the fan 8 to rotate, the rotating shaft 701 will also be driven to rotate. As Figure 7 shown, the rotating shaft 701 is also symmetrically installed with offset rods 702, and steel balls 703 are fixed at the ends of the offset rods 702;

[0034] And a dust shield 706 is slidably connected to the outside of the sleeve 12. The dust shield 706 is also evenly provided with heat dissipation inner fins 11, and the heat dissipation inner fins 11 are arranged corresponding to the heat dissipation outer fins 5. At the same time, a spring 10 is installed on the top of the lamp board 9, and the spring 10 abuts against the bottom of the dust shield 706. The dust shield 706 penetrates through the sleeve 12 and is slidably connected to the sleeve 12. An activity sleeve 704 is movably connected to the dust shield 706 inside the sleeve 12, and the activity sleeve 704 is slidably connected to the rotating shaft 701;

[0035] That is, when the rotating shaft 701 rotates, it drives the activity sleeve 704 to rotate. The centrifugal force generated by the rotation of the rotating shaft 701 acts on the steel ball 703 at the end of the offset rod 702, causing the offset rod 702 to expand when the rotating shaft 701 rotates. The other end of the offset rod 702 is movably connected to a connecting rod 705, and the connecting rod 705 is installed on the activity sleeve 704. When the offset rod 702 rotates, it uses the connecting rod 705 to press down the entire activity sleeve 704, causing the dust shield 706 connected to the activity sleeve 704 to start moving;

[0036] At this time, part of the heat generated by the lamp board 9 is directly discharged through the dust shield 706. However, since the dust shield 706 is in an intermittent open state at this time, if the rotation speed of the rotating shaft 701 is low, the dust shield 706 will not move at this time, and the heat is still discharged through the heat dissipation inner fins 11 and the heat dissipation outer fins 5;

[0037] When the lamp cylinder works continuously, the overall temperature of the housing 1 will rise at this time. When the temperature change obtained by the temperature sensor reaches another threshold set by the controller, the motor drives the rotating shaft 701 to rotate in the reverse direction at this time, changing the wind direction at the top of the overall housing 1. At the same time, the rotation speed of the entire rotating shaft 701 increases. At this time, the deflecting rod 702 rotates and squeezes the connecting rod 705 on the movable sleeve 704, resulting in a gap being formed between the heat dissipation inner fins 11 and the heat dissipation outer fins 5 on the dust baffle 706. The air flowing downward enters directly onto the lamp board 9 along the gap and is directly discharged through the heat dissipation outer fins 5;

[0038] Since it acts directly on the lamp board 9, the temperature dissipation on the surface of the lamp board 9 is accelerated. However, since the dust baffle 706 inside the downlight is exposed to work for a long time, it causes the fan 8 to drive the air containing impurities to move on the inner wall of the downlight, resulting in an increased probability of the surface of the lamp board 9 being contaminated by impurities. Therefore, the continuous opening time of the downlight is set, and it will automatically close after a certain period of time to avoid the problem of reducing the service life of the downlight due to long-term work;

[0039] Monitor the working state and temperature of the downlight, and control the rotation speed and rotation direction of the fan 8 on the placement housing 6 according to the downlight state, so as to drive the air flow inside the housing 1 at different angles and improve the overall heat dissipation efficiency of the entire LED downlight.

[0040] The above content is only an example and illustration of the structure of the present invention. Those skilled in the art of this technology make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should fall within the protection scope of the present invention.

[0041] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the invention to only the specific implementation manners. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art of this technology can understand and utilize the present invention well. The present invention is only limited by the claim book and its full scope and equivalents.

Claims

1. A vertical heat dissipation housing structure for an anti-glare LED downlight, including a cover housing (1), characterized in that, The top of the housing (1) is fixed with a heat dissipation outer fin (5) by bolts, the top of the heat dissipation outer fin (5) is fixed with a placement shell (6) by bolts, and a sleeve (12) is fixedly connected inside the housing (1); A conduction detection mechanism (7) is installed and fixed on the placement shell (6). The conduction detection mechanism (7) includes a rotating shaft (701), a deflecting rod (702), a movable sleeve (704) and a dust baffle (706). The end of the motor installed in the placement shell (6) is fixedly connected with the rotating shaft (701). The outer wall of the rotating shaft (701) located inside the sleeve (12) is symmetrically and movably connected with the deflecting rod (702), and the end of the deflecting rod (702) is fixedly connected with a steel ball (703); A dust baffle (706) is slidably connected inside the heat dissipation outer fin (5) and on the top of the housing (1). The top of the dust baffle (706) is movably connected with a movable sleeve (704), and the movable sleeve (704) is slidably connected with the outer wall of the rotating shaft (701). The outer wall of the movable sleeve (704) is symmetrically and rotatably connected with a connecting rod (705), and one end of the connecting rod (705) is movably connected with one end of the deflecting rod (702) respectively.

2. The vertical heat dissipation housing structure of an anti-glare LED downlight according to claim 1, characterized in that, A reflector cup (4) is fixedly connected inside the housing (1). A lamp board (9) is fixed on the top of the housing (1) and on the reflector cup (4) by bolts. A spring (10) is installed on the top of the lamp board (9), and the other side of the spring (10) abuts against the dust baffle (706).

3. The vertical heat dissipation housing structure of an anti-glare LED downlight according to claim 2, characterized in that, A temperature sensor is installed in the placement shell (6), and a fan (8) is sleeved and installed on the placement shell (6) on the side of the motor.

4. The vertical heat dissipation housing structure of an anti-glare LED downlight according to claim 3, characterized in that Sliding grooves are evenly formed on the outer side wall of the sleeve (12). One side of the dust baffle (706) respectively penetrates through the sleeve (12) and is slidably connected with the sleeve (12). Heat dissipation inner fins (11) are evenly fixedly connected to the top of the dust baffle (706) located outside the sleeve (12).

5. The vertical heat dissipation housing structure of an anti-glare LED downlight according to claim 4, characterized in that, Clasps (2) are symmetrically installed on both sides of the top of the housing (1), and a light guide plate (3) is fixedly connected to the bottom of the housing (1).

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