Direct type microcrystal panel lamp

Abstract

The utility model discloses a direct type microcrystal panel lamp, which belongs to the technical field of lighting lamps and comprises a fixed frame and a lamp strip, the lamp strip is fixed on the inner side face of the fixed frame, and a microcrystal light emitting plate, a diffusion plate, a light guide plate and reflective paper are arranged in the middle of the fixed frame from bottom to top. The backlight module further comprises a pressing strip and a backlight lens, an open groove is formed in the pressing strip, the pressing strip is fixed to the back face of the fixed frame and located on the outer side of the reflective paper, one side of the backlight lens penetrates through the open groove and extends to the outside, and the other side of the backlight lens extends to the top side of the lamp strip. The backlight lens can guide part of light of the lamp beads to the back for light emitting, and meanwhile, the uniformity of front light emitting is not affected, so that the front light emitting surface is uniform and attractive, the overall light environment of a classroom is improved, and too large brightness difference is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting lamp technical field especially relates to a direct type microcrystalline panel lamp. BACKGROUND

[0002] The lack of back light in classroom lamps can lead to the following problems: Insufficient classroom space brightness: Back light design can compensate for the brightness of the classroom ceiling, making the overall classroom brighter. If there is a lack of back light, relying only on the front light of the lamp, it may result in lower brightness in the top area of the classroom, affecting the brightness and visual effect of the entire classroom. Uneven light distribution: The combination of back light and front light helps to achieve more uniform light distribution. The lack of back light may cause the light in the classroom to be concentrated mainly in the desktop area, while the top and surrounding areas are dark, resulting in uneven light distribution and affecting the visual comfort and learning efficiency of students. Visual fatigue and vision impairment: When the light distribution in the classroom is uneven or the brightness is insufficient, students may need to adjust their eye angle for a long time in order to see the blackboard or books, which can cause eye muscle over-regulation and easily cause visual fatigue. Long-term learning in such an environment may increase the risk of myopia in students.

[0003] The existing microcrystalline panel lamp generally adopts a light emitting form, and then guides light through a light guide plate. In order to ensure uniform light emission, there cannot be any gaps in the back for light emission, ensuring that light is emitted from the front. Due to the existing light emission form, the panel lamp does not have back light emission, affecting the overall brightness of the classroom. SUMMARY

[0004] In view of the above problems, the utility model aims to solve the problems described above. One object of the utility model is to provide a direct type microcrystalline panel lamp to solve the above problems.

[0005] The scheme adopted by the embodiment is: a direct type microcrystalline panel lamp, comprising a fixed frame and a light bar, the light bar is fixed to the inner side of the fixed frame, a microcrystalline light emitting plate, a diffusion plate, a light guide plate and a reflective paper are arranged in the fixed frame from bottom to top; further comprising a pressing strip and a back light lens, the pressing strip is provided with a slot, the pressing strip is fixed to the back of the fixed frame and located outside the reflective paper, one side of the back light lens extends to the outside through the slot, and the other side of the back light lens extends to the top side of the light bar.

[0006] The specific structure of the back light lens is that the lower end of the back light lens is provided with a light guide part, the light guide part is arranged along the length direction of the light bar, the light bar is provided with a plurality of lamp beads along the length direction, the width of the light guide part is greater than the thickness of the lamp bead, the light guide plate is located on the light emitting side of the lamp bead, and the light guide part is provided with an avoidance gap between the light guide plate and the lamp bead.

[0007] Further, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0008] Preferably, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0009] Further, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0010] Preferably, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0011] Preferably, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0012] Preferably, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0013] Preferably, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0014] Preferably, the light guide part is located on the upper side of the lamp bead, and the light guide part partially extends to the middle position of the thickness of the lamp bead, and the other part of the light guide part extends to the avoiding gap, and the part extending to the avoiding gap is directly connected with the light guide of the lamp bead.

[0015] The direct type microcrystalline panel lamp has the following technical effects:

[0016] 1. The direct type microcrystalline panel lamp comprises a fixed frame and a lamp strip, the lamp strip is fixed to the inner side surface of the fixed frame, and the middle part of the fixed frame is provided with a microcrystalline light-emitting plate, a diffusion plate, a light guide plate and a reflective paper from bottom to top; the lamp strip is provided with a slot, the lamp strip is fixed to the back surface of the fixed frame and located outside the reflective paper, one side of the backlight lens extends to the outside through the slot, and the other side of the backlight lens extends to the top side of the lamp strip. The backlight lens can guide part of the light of the lamp bead to the back light-emitting part, and meanwhile, the uniformity of the front light-emitting part is not affected, so that the front light-emitting surface is uniform and beautiful, the overall light environment of the classroom is improved, and the difference between bright and dark is avoided.

[0017] Other features and advantages of the present invention will become clear when reading the following description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the direct-lit microcrystalline panel lamp provided in a specific embodiment of this utility model;

[0020] Figure 2 This is a cross-sectional schematic diagram of the backlight lens mounting position provided in a specific embodiment of this utility model;

[0021] In the picture:

[0022] 1. Fixed frame; 2. Microcrystalline light-emitting plate; 3. Diffuser plate; 4. Light guide plate; 5. Reflective paper; 6. Backlight lens; 7. Pressure strip; 8. Fixing frame; 61. Light guide section; 62. Light enhancement section; 63. Hemispherical surface; 621. Guide slope; 622. Step notch; 71. Slot; 81. Lamp bead. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some, not all, of the embodiments of this utility model. 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. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0024] The direct-lit microcrystalline panel light will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 , Figure 2As shown, this utility model provides a direct-lit microcrystalline panel light, including a fixed frame 1 and a light strip. The light strip is securely installed on the inner side of the fixed frame 1 by screws or clips, ensuring stable positioning and easy replacement. From bottom to top, the fixed frame 1 is arranged a microcrystalline light-emitting plate 2, a diffuser plate 3, a light guide plate 4, and a reflective paper 5. The design principle of this layered structure is that the microcrystalline light-emitting plate 2 provides uniform and high-brightness light output, the diffuser plate 3 further homogenizes the light and reduces light spots, the light guide plate 4 guides the light to propagate in a specific direction, enhancing light utilization, and the reflective paper 5 reflects leaked light, improving overall light efficiency. In addition, it includes a pressure strip 7 and a backlight lens 6. The pressure strip 7 has a slot 71, designed to facilitate the insertion and fixation of the backlight lens 6 while maintaining the aesthetics of the structure. The pressure strip 7 is fixed to the back of the fixed frame 1 by screws, adhesives, or clips, and is located outside the reflective paper 5 to provide additional support and protection for the reflective paper 5. One side of the backlight lens 6 extends through the slot 71 to the outside for direct light output; the other side of the backlight lens 6 extends to the top side of the lamp strip. Its working principle is to use the optical characteristics of the lens to converge and guide the light emitted by the lamp bead 81, thereby improving the utilization rate and uniformity of the light.

[0026] The backlight lens 6 has the following specific structure: a light guide 61 is provided at its lower end. The design principle of the light guide 61 is based on total internal reflection and refraction, effectively guiding light. The light guide 61 is positioned along the length of the light strip, ensuring uniform light distribution along its entire length. Several LED beads 81 are arranged along the length of the light strip, emitting light as a light source. The width of the light guide 61 is greater than the thickness of the LED beads 81 to ensure complete coverage and prevent light leakage. The light guide plate 4 is located on the light-emitting side of the LED beads 81 and further guides the light. A clearance gap is provided between the light guide plate 4 and the LED beads 81 to prevent direct contact that could lead to light loss or damage to the LED beads 81. The width of the light guide 61 is smaller than the width of the clearance gap to ensure that the light guide 61 can be flexibly inserted into the clearance gap while maintaining light conduction with the LED beads 81.

[0027] Furthermore, the light guide portion 61 is located above the lamp bead 81, extending partly to the middle of the thickness of the lamp bead 81 and another part extending into the clearance gap. The portion extending into the clearance gap is directly connected to the light from the lamp bead 81. Its working principle is to guide the light emitted by the lamp bead 81 to the light guide plate 4 to the maximum extent through the special shape and position design of the light guide portion 61, thereby improving the utilization rate of light.

[0028] A preferred technical solution is that a light-enhancing section 62 is provided on the side of the backlight lens 6 near the light guide plate 4. Its design principle is to increase the number of refractions and reflections of light, thereby improving the brightness and uniformity of the light. A stepped notch 622 is formed between the lower side of the light-enhancing section 62 and the light guide section 61 to further guide the light and ensure that the light can smoothly enter the light guide plate 4. The sum of the width of the stepped notch 622 and the width of the light guide section 61 is greater than the width of the clearance gap, ensuring that the light-enhancing section 62 can completely cover the clearance gap and prevent light leakage. The lower side of the light-enhancing section 62 is higher than the top surface of the light guide plate 4 to ensure that the light-enhancing section 62 can function effectively.

[0029] Furthermore, the upper side of the light-enhancing section 62 is provided with a guide slope 621 inclined towards the fixed frame 1. Its design principle is to guide light in a specific direction through the slope angle and shape, thereby improving the uniformity and brightness of the light. The guide slope 621 extends below the reflective paper 5, cooperating with it to further improve light utilization. The edge of the reflective paper 5 covers the guide slope 621 to ensure that the reflective paper 5 can be stably fixed on the guide slope 621, while preventing light leakage from the edge.

[0030] Preferably, the width of the upper part of the backlight lens 6 is greater than the width of the light guide 61 to increase the stability and support of the backlight lens 6. The included angle of the guide slope 621 is 60-70 degrees, which is the optimal angle range obtained through multiple experiments and optimizations, ensuring the best refraction and reflection effect of light on the guide slope 621.

[0031] Preferably, the backlight lens 6 has a hemispherical surface 63 at its top. The design principle utilizes the optical properties of the hemispherical surface to converge and diverge light, resulting in a more uniform and softer light output. The hemispherical surface 63 passes through the pressure strip 7 and is located on the outside to facilitate light output and diffusion.

[0032] Preferably, the length of the backlight lens 6 is shorter than the length of the pressure strip 7 to ensure that the backlight lens 6 can be completely fixed inside the pressure strip 7, while avoiding the pressure strip 7 being too long and resulting in an unsightly structure. The slot 71 is located in the middle of the pressure strip 7 and is set along the length direction of the pressure strip 7 to facilitate the insertion and fixation of the backlight lens 6.

[0033] The preferred technical solution is that the pressure strips 7 are located on both sides along the length of the panel light, with four pressure strips 7 on each side to provide sufficient support and fixing force. Three fixing brackets 8 are horizontally arranged on the fixed frame 1 to further fix and support the pressure strips 7 and the backlight lens 6. The pressure strips 7 are located between the fixing brackets 8 to ensure the stability and robustness of the structure.

[0034] A preferred technical solution is that the width of the pressure strip 7 is greater than the width of the backlight lens 6, to ensure that the pressure strip 7 can completely cover the backlight lens 6, providing sufficient protection and support. At the same time, this design also improves the aesthetics and practicality of the overall structure.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes that element.

[0036] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. The utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A direct-lit microcrystalline panel light, comprising a fixed frame and a light strip, wherein the light strip is fixed to the inner side of the fixed frame, and a microcrystalline light-emitting plate, a diffuser plate, a light guide plate, and reflective paper are disposed from bottom to top in the middle of the fixed frame; characterized in that: It also includes a pressure strip and a backlight lens. The pressure strip has a slot and is fixed to the back of the fixed frame, located outside the reflective paper. One side of the backlight lens extends through the slot to the outside, and the other side of the backlight lens extends to the top side of the light strip.

2. The direct-lit microcrystalline panel lamp as described in claim 1, characterized in that: A light guide is provided at the lower end of the backlight lens. The light guide is arranged along the length of the lamp strip. A plurality of lamp beads are arranged along the length of the lamp strip. The width of the light guide is greater than the thickness of the lamp beads. The light guide plate is located on the light-emitting side of the lamp beads. A clearance gap is provided between the light guide plate and the lamp beads. The width of the light guide is smaller than the width of the clearance gap.

3. The direct-lit microcrystalline panel lamp as described in claim 2, characterized in that: The light guide is located on the upper side of the lamp bead. Part of the light guide extends to the middle of the lamp bead's thickness, and another part of the light guide extends into the clearance gap. The part extending into the clearance gap is directly connected to the light of the lamp bead below.

4. The direct-lit microcrystalline panel lamp as described in claim 2, characterized in that: A light-enhancing section is provided on the side of the backlight lens near the guide plate. A stepped notch is formed between the lower side of the light-enhancing section and the light guide section. The sum of the width of the stepped notch and the width of the light guide section is greater than the width of the clearance gap. The height of the lower side of the light-enhancing section is higher than the top surface of the light guide plate.

5. The direct-lit microcrystalline panel lamp as described in claim 4, characterized in that: The upper side of the light-enhancing part is provided with a guide slope that is inclined towards the fixed frame. The guide slope extends to the bottom of the reflective paper, and the edge of the reflective paper covers the guide slope.

6. The direct-lit microcrystalline panel lamp as described in claim 5, characterized in that: The width of the upper part of the backlight lens is greater than the width of the light guide, and the included angle of the guide slope is 60-70 degrees.

7. The direct-lit microcrystalline panel lamp as described in claim 6, characterized in that: The backlight lens has a hemispherical surface at the top, which passes through the pressure strip and is located on the outside.

8. The direct-lit microcrystalline panel lamp as described in claim 1, characterized in that: The length of the backlight lens is less than the length of the pressure strip, the slot is located in the middle of the pressure strip, and the slot is set along the length direction of the pressure strip.

9. The direct-lit microcrystalline panel lamp as described in claim 1, characterized in that: The pressure strips are located on both sides of the panel light along its length, with four pressure strips on each side. Three fixing frames are horizontally arranged on the fixed frame, and the pressure strips are located between the fixing frames.

10. The direct-lit microcrystalline panel lamp as described in claim 1, characterized in that: The width of the pressure strip is greater than the width of the backlight lens.

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