Light uniformizing structure of LED (light-emitting diode) lamp box
By introducing reflective bowls, prismatic light guide plates and heat dissipation mechanisms into LED light boxes, the problems of poor light uniformity and insufficient heat dissipation are solved, and a highly efficient light uniformity and high-brightness LED light box design is achieved, extending the service life.
Patent Information
- Application Number
- CN202423089883.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing LED light boxes have average light uniformity, large brightness loss, and insufficient heat dissipation performance, which affects the service life of the LED lights.
The LED light box uniform light structure is adopted, including the shell, light ring, reflector bowl, uniform light plate and heat dissipation mechanism. The light is reflected by the reflector bowl and uniformed by the prism light guide plate. The heat is dissipated by the cooling fan and air guide holes. The air flow channel is reasonably designed to prevent dust from entering, thereby improving the uniformity of light and the heat dissipation effect.
It effectively improves the uniform light effect of LED lamps, ensures brightness, and at the same time extends the service life of LED lamps, improves heat dissipation capacity and continuous working ability.
Smart Images
Figure CN223448212U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to LED lamp technical field especially relates to a LED lamp box light uniformity structure. BACKGROUND
[0002] As a kind of energy-saving lighting equipment, its core light-emitting component is the light-emitting diode made of PN structure, under electroluminescent effect, it has the advantages of high brightness, small energy consumption etc., therefore, in recent years, it is widely used in various lighting places, and its structure and style are also rapidly enriched.
[0003] Compared with ordinary light source, LED is made of array of light-emitting diode, that is, arranged by point light source, considering lamp cost and heat dissipation performance, the distribution density of light-emitting diode cannot be too large, which will make the illumination of LED array light source difficult to obtain better uniformity.
[0004] At present, the processing of LED light source mostly uses light uniformity plate to uniform light, but the light uniformity effect is general, and there is certain loss for brightness. INVENTION CONTENTS
[0005] The utility model discloses a LED lamp box light uniformity structure, which solves the problem of general light uniformity effect and certain loss of brightness in the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] A kind of LED lamp box light uniformity structure, including shell, the shell is equipped with lamp ring, lamp ring top is equipped with reflector bowl, shell bottom is equipped with light uniformity plate, shell upper portion is equipped with heat dissipation mechanism;
[0008] The lamp ring includes a supporting ring mounted in the shell, the inner side of the supporting ring is provided with a mounting surface in the shape of an inverted circular table and an annular lamp plate is mounted thereon correspondingly, and the inner side of the annular lamp plate is uniformly arranged with LED lamp beads.
[0009] A light guide plate is arranged between the lamp ring and the light uniformity plate.
[0010] Preferably, the light guide plate is a prismatic light guide plate.
[0011] Preferably, the heat dissipation mechanism includes a heat dissipation fan mounted on the top wall of the shell, air guiding holes uniformly arranged on the outer side of the supporting ring, air permeation holes arranged on the top wall of the shell corresponding to the heat dissipation fan, and ventilation gaps arranged between the supporting ring, the reflector bowl and the inner wall of the shell.
[0012] More preferably, a sealing ring is connected between the outer side of the supporting ring and the reflector bowl.
[0013] More preferably, the first partition is connected between the inner top wall of the shell and the upper end of the light-reflecting bowl, and the second partition is connected between the sealing ring and the inner wall of the shell and is connected with the first partition, so as to divide the ventilation gap, and the heat dissipation fan is provided with two air supply directions opposite to each other and is arranged on the two sides of the first partition respectively.
[0014] Preferably, the lower end of the light-reflecting bowl is not a single concave surface, and the cross section is substantially wave-shaped.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] 1、In the technical scheme, the LED lamp beads arranged upwards, the light is reflected by the light-reflecting bowl, and then is sent out through the prismatic light guide plate and the light uniformity plate, so that the focusing and directivity of the light are effectively avoided, the uniformity of the light is improved, the light uniformity effect of the LED lamp is effectively ensured, and the brightness of the LED is effectively ensured through the design of the LED lamp ring.
[0017] 2、In the technical scheme, the heat dissipation mechanism is designed to dissipate heat for the annular lamp plate, the continuous working capacity and service life of the LED lamp are improved, air flow is effectively prevented from entering the light-reflecting bowl and the light guide plate, dust is prevented from entering to cause the LED lamp to appear shadow, dim and the like, and the service life of the LED lamp is further improved.
[0018] The utility model discloses the design is reasonable, the compact structure is effectively improved the light uniformity effect of LED lamp, and guarantees the heat dissipation capacity, makes LED lamp have the ability of high power continuous operation, also greatly improves the service life of LED lamp. ACCURACY OF DRAWINGS
[0019] Fig. 1 It is the appearance structure schematic drawing of the utility model.
[0020] Fig. 2 It is the bottom structure schematic drawing of the utility model.
[0021] Fig. 3 It is the internal structure schematic drawing of the utility model.
[0022] Fig. 4 It is the lamp ring structure schematic drawing of the utility model.
[0023] Fig. 5 It is the first partition structure schematic drawing of the utility model.
[0024] Fig. 6 It is the front structure cross-sectional view of the utility model.
[0025] In the figure: shell 1, lamp ring 2, annular lamp plate 21, LED lamp bead 22, support ring 23, air guide hole 231, reflector bowl 3, light guide plate 4, light homogenizing plate 5, heat dissipation mechanism 6, heat dissipation fan 61, air hole 611, first partition 62, ventilation gap 63, sealing ring 64, second partition 641. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0027] Referring to Figs. 1-6 A kind of LED light box light homogenizing structure, including shell 1, lamp ring 2 is equipped in the shell 1, lamp ring 2 top is equipped with reflector bowl 3, shell 1 bottom is equipped with light homogenizing plate 5, shell 1 upper portion is equipped with heat dissipation mechanism 6;Lamp ring 2 is used for emitting light, reflector bowl 3 reflects the light emitted by lamp ring, the light reflected by lamp ring is exported after light homogenizing by light homogenizing plate 5, and the heat dissipation mechanism 6 is used to dissipate heat for lamp ring 2, to ensure the heat dissipation effect on lamp ring 2.
[0028] The lamp ring 2 includes support ring 23 installed in the shell 1, the inner side of the support ring 23 is provided with a mounting surface in the shape of an inverted circular table and is correspondingly provided with annular lamp plate 21, and the inner side of the annular lamp plate 21 is uniformly provided with LED lamp bead 22;The normal line of the LED lamp bead 22 is directed towards the inner side, so as to avoid the light emitted by the LED lamp bead 22 from being directly downward, thereby affecting the light homogenizing effect of the light homogenizing plate.
[0029] The light guide plate 4 is arranged between the lamp ring 2 and the light homogenizing plate 5, and the light guide plate 4 is selected to be a prismatic light guide plate. The prismatic light guide plate avoids the refraction and reflection of light controlled by the prism structure, improves the uniformity of light, reduces glare, enhances brightness, and further improves the light homogenizing effect of the light homogenizing plate.
[0030] Based on the above technical solutions, the LED lamp bead 22 emits light, the light is reflected by the reflector bowl, and then passes through the light guide plate 4 and the light homogenizing plate 5 in sequence to emit uniform light. Through the design of the light guide plate, the uniformity of light is improved and glare is reduced, and the light homogenizing effect of the light homogenizing plate 5 is improved.
[0031] In the technical solution, as shown in Figs. 1-6 The heat dissipation mechanism 6 includes heat dissipation fan 61 installed on the top wall of the shell 1, air guide hole 231 uniformly arranged on the outer side of the support ring 23, air hole 611 arranged on the top wall of the shell 1 corresponding to the heat dissipation fan 61, and ventilation gap 63 arranged between the support ring 23, the reflector bowl 3 and the inner wall of the shell 1. The heat dissipation fan 61 blows air downward, the airflow enters the inner side of the support ring 23 through the ventilation gap 63 and the air guide hole 231, and the annular lamp plate 21 is cooled, thereby improving the continuous working capacity of the LED lamp.
[0032] In the technical solution, as shown in Figs. 1-6 The sealing ring 64 is connected between the supporting ring 23 and the outer side of the reflector bowl 3. The air flow is prevented from entering between the reflector bowl 3 and the lamp ring 2, the dust is prevented from entering between the reflector bowl 3 and the light guide plate 4, the shadow is prevented from appearing when the light is on, and the illumination effect of the LED lamp is ensured. The service life of the LED lamp is also improved.
[0033] In the technical solution, as shown in Figs. 1-6 The first partition plate 62 is connected between the inner top wall of the shell 1 and the upper end of the reflector bowl, and the second partition plate 641 connected with the first partition plate 62 is connected between the sealing ring 64 and the inner wall of the shell 1. The ventilation gap 63 is divided, and the heat dissipation fan 61 is provided with two air supply directions opposite to each other and arranged on both sides of the first partition plate 62. The upper part of the inner cavity of the shell 1 and the ventilation gap 63 are divided into two parts by the first partition plate 62 and the second partition plate 641. The heat dissipation fan 61 on one side supplies air inward, the air flow enters the inner side of the supporting ring 23 through the ventilation gap 63 and the air guide hole 231 on the side and is discharged through the other side, and the heat dissipation fan 61 on the other side supplies air outward, so as to improve the circulation effect of the air flow.
[0034] In the technical solution, as shown in Figs. 1-6 The lower end of the reflector bowl 3 is not a single concave surface, and the cross section is generally wave-shaped. The concave mirror is avoided to cause the light to focus in one place, and the uniform light effect of the LED lamp is affected. The wave-shaped reflector bowl 3 is matched to disperse and reflect the light, and the uniform light effect of the LED lamp is further improved.
[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A LED light box uniform light structure, characterized in that: The invention comprises a housing (1), wherein a light ring (2) is provided in the housing (1), a reflective bowl (3) is provided above the light ring (2), a light homogenizing plate (5) is provided at the bottom of the housing (1), and a heat dissipation mechanism (6) is provided at the top of the housing (1); The light ring (2) comprises a supporting ring (23) installed in the housing (1); an inverted truncated cone-shaped mounting surface is provided on the inner side of the supporting ring (23) and a ring-shaped light plate (21) is installed correspondingly; LED lamp beads (22) are evenly arranged on the inner side of the ring-shaped light plate (21); A light guide plate (4) is provided between the light ring (2) and the light homogenizing plate (5).
2. The LED light box uniform light structure according to claim 1, characterized in that: The light guide plate (4) is a prismatic light guide plate.
3. The LED light box uniform light structure according to claim 1, characterized in that: The heat dissipation mechanism (6) comprises a heat dissipation fan (61) mounted on the inner top wall of the housing (1), air guide holes (231) uniformly arranged on the outer side of the support ring (23), and air vents (611) corresponding to the heat dissipation fan (61) are provided on the top wall of the housing (1). Ventilation gaps (63) are provided between the support ring (23), the reflective bowl (3) and the inner wall of the housing (1).
4. The LED light box uniform light structure according to claim 3, characterized in that: A sealing ring (64) is connected between the support ring (23) and the outer side of the reflective bowl (3).
5. The LED light box uniform light structure according to claim 4, characterized in that: A first partition (62) is connected between the inner top wall of the housing (1) and the upper end of the reflective bowl, and a second partition (641) connected to the first partition (62) is connected between the sealing ring (64) and the inner wall of the housing (1) to separate the ventilation gap (63). The cooling fan (61) is provided with two fans having opposite air supply directions and arranged on both sides of the first partition (62).
6. The LED light box uniform light structure according to claim 1, characterized in that: The lower end of the reflective bowl (3) is not a single concave surface, and its cross section is roughly wavy.