PC mask

Abstract

According to the PC mask provided by the utility model, the structure of the mounting strip is improved, the height of the mounting strip is shortened to be not more than 5mm, and meanwhile, the ribs are additionally arranged on the inner side of the mounting strip, so that the ductility of the whole structure can be effectively improved, the stress concentration area of the mounting strip during bending is obviously reduced, and the service life of the mounting strip is prolonged. The PC mask can more smoothly adapt to shape changes in the curling process, and therefore the risk of creases and cracks is greatly reduced. Due to the design of the short mounting strips, when the PC mask is subjected to external force, the internal structure of the PC mask can disperse stress more easily, and local excessive deformation and damage are reduced; when the PC mask is bent, the ribs can effectively absorb and disperse bending stress, and the PC mask is prevented from cracking due to excessive deformation. Meanwhile, the main plate body and the mounting strip are integrally made of PC materials, high light emitting uniformity and color purity can be kept, and the requirement of the lamp for the lighting effect is met.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a PC mask. Background Art

[0002] In linear (strip) type lamps, PC mask is a key component, and its structure can refer to CN210069803U or reference Figure 1 The main body (100) is usually designed in the form of a long sheet. The main body (100) is equipped with two rubber feet (110). These two rubber feet (110) enable the PC cover to achieve a stable snap connection with the lamp box part of the lamp. Depending on the material of the rubber feet (110), the PC cover is divided into two types: soft rubber feet and hard rubber feet.

[0003] The characteristic of the PC mask with soft rubber feet is that its main body is made of PC material (Polycarbonate), while the rubber feet are made of soft silicone. This design gives the mask good bending and packaging convenience, and is particularly suitable for lamps that are long or need to be spliced ​​in sections. Through bending and packaging, the PC mask with soft rubber feet is not only easy to transport, but also ensures that the mask can achieve seamless coverage regardless of the length of the lamp. However, the PC mask with soft rubber feet also has obvious defects. That is, when the lamp is illuminated, visible shadows are easily generated on both sides of the mask (affected by the silicone rubber feet), resulting in uneven light output. In addition, the PC mask with soft rubber feet may also affect color purity, causing large deviations in the color temperature and color tolerance of the lamp.

[0004] In contrast, the hard rubber foot PC mask shows superior uniformity and color purity when the lamp is lit. It is made entirely of PC material (the "hard" rubber foot is relative to the silicone soft rubber foot, which still has a certain degree of ductility), but the hard rubber foot PC mask is slightly lacking in ductility. Figure 2 As shown, when bent at excessive angles, the rubber feet can crease or even crack, making them difficult to bend and package freely like PC covers with soft rubber feet. Due to transportation constraints, PC covers with hard rubber feet typically need to be cut to length before packaging. For longer strip luminaires, PC covers with hard rubber feet can only be joined in sections, and improperly treated seams can lead to light leakage.

[0005] To sum up, PC masks with soft rubber feet and PC masks with hard rubber feet each have their own advantages and disadvantages. How to improve the light uniformity and color purity of the mask while ensuring transportation convenience has become an urgent problem to be solved. Utility Model Content

[0006] In view of this, the present invention proposes a PC mask, aiming to solve the problems that the existing PC masks are either inconvenient to pack and transport or have poor light output effects.

[0007] The technical solution of the present utility model is achieved as follows:

[0008] A PC mask includes a main board body, wherein the main board body is provided with two oppositely arranged mounting strips, the outer sides of the mounting strips are provided with snap portions, the inner sides of the mounting strips are provided with ribs, and a gap is formed between the ribs and the main board body; the height of the mounting strips is equal to or less than 5 mm.

[0009] As a further optional solution, the buckle portion is a slot structure.

[0010] As a further optional solution, the cross section of the mounting bar comprises, from near to far, a rising section, a first inclined section, and a second inclined section based on the main body;

[0011] The first end of the first inclined section is connected to the rising section, the second end of the first inclined section is connected to the first end of the second inclined section, the first inclined section is inclined from its first end to its second end in a direction away from the rib, and the second inclined section is inclined from its first end to its second end in a direction close to the rib; the snap portion is formed between the first inclined section and the main board body.

[0012] As a further optional solution, the ratio of the height of the mounting bar to its thickness is 5:1 to 5:2.

[0013] As a further optional solution, the thickness of the rib is the same as the thickness of the mounting bar.

[0014] As a further optional solution, the gap between the ribs and the main board body forms a clamping space.

[0015] As a further optional solution, the width of the rib is at least 3 mm.

[0016] Compared with the prior art, the PC mask of this application has at least the following beneficial effects:

[0017] This PC mask improves the structure of the mounting bar (equivalent to the rubber foot), shortening the height of the mounting bar to no more than 5mm. At the same time, ribs are added to the inner side of the mounting bar, which can effectively improve the ductility of the overall structure and significantly reduce the stress concentration area of ​​the mounting bar when bending. This allows the PC mask to adapt to shape changes more smoothly during the curling process, thereby greatly reducing the risk of creases and cracking. The shorter mounting bar design makes it easier for the internal structure of the PC mask to disperse stress when subjected to external forces, reducing local excessive deformation and damage. When the PC mask bends, the ribs can effectively absorb and disperse the bending stress, preventing the PC mask from cracking due to excessive deformation. At the same time, the main body and the mounting bar are made of PC material as a whole, which can maintain a high degree of light uniformity and color purity, meeting the lighting requirements of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A cross-sectional schematic diagram of a PC mask in the prior art;

[0020] Figure 2 for Figure 1 Schematic diagram of the PC mask when it is curled;

[0021] Figure 3 This is a cross-sectional schematic diagram of a PC mask according to an embodiment of the present utility model;

[0022] Figure 4 for Figure 3 An enlarged cross-sectional schematic diagram of the mounting strip described in ;

[0023] Figure 5 for Figure 3 Schematic diagram of the structure of the PC mask when curled;

[0024] Figure 6 For an application Figure 3 A cross-sectional diagram of a lamp with a PC mask;

[0025] Figure 7 for Figure 6 Exploded diagram of the lamp;

[0026] Figure 8 Schematic diagram of the installation structure of the installation bar.

[0027] Figure 3-8 Center: 1. PC cover; 11. Main board; 12. Mounting bar; 12a. Rising section; 12b. First inclined section; 12c. Second inclined section; 121. Buckle; 122. Rib; 123. Clamping space; 2. Prism plate; 3. Diffuser plate;

[0028] 200, lamp box; 210, lamp cavity; 220, card strip;

[0029] 300, light source module;

[0030] 400, driving power supply;

[0031] 500, cover plate;

[0032] 600. End cover. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] refer to Figure 3-5An embodiment of the present invention shows a PC mask 1, comprising a main board body 11, on which two mounting strips 12 are disposed opposite each other, a buckle portion 121 being disposed on the outer side of the mounting strip 12, and a rib 122 being disposed on the inner side of the mounting strip 12, with a gap being provided between the rib 122 and the main board body 11; the height of the mounting strip 12 is equal to or less than 5 mm.

[0037] Specifically, the PC mask 1 improves the structure of the mounting bar 12 (equivalent to the rubber foot), shortening the height of the mounting bar 12 to no more than 5mm. Ribs 122 are added to the inner side of the mounting bar 12, effectively improving the ductility of the overall structure and significantly reducing the stress concentration area of ​​the mounting bar 12 when it bends. This allows the PC mask 1 to more smoothly adapt to shape changes during curling, thereby greatly reducing the risk of creases and cracks. The shorter mounting bar 12 design makes it easier for the internal structure of the PC mask 1 to disperse stress when subjected to external forces, reducing localized excessive deformation and damage. When the PC mask 1 bends, the ribs 122 can effectively absorb and disperse bending stress, preventing the PC mask 1 from cracking due to excessive deformation. Furthermore, the main body 11 and the mounting bar 12 are entirely made of PC material, which can maintain a high degree of light uniformity and color purity, meeting the lighting requirements of the lamp.

[0038] In this embodiment, to further ensure that the mounting strip 12 does not crack when curled, the ratio of the height of the mounting strip 12 to its thickness is 5:1 to 5:2. The thickness of the rib 122 is the same as that of the mounting strip 12.

[0039] In some embodiments, the buckle portion 121 is a slot structure.

[0040] Specifically, if Figure 4 As shown, the cross-section of the mounting strip 12 includes, from near to far, based on the main board body 11: an ascending section 12a, a first inclined section 12b and a second inclined section 12c; the first end of the first inclined section 12b is connected to the ascending section 12a, the second end of the first inclined section 12b is connected to the first end of the second inclined section 12c, the first inclined section 12b is inclined from its first end to its second end in a direction away from the rib 122, and the second inclined section 12c is inclined from its first end to its second end in a direction close to the rib 122; the snap-fit ​​portion 121 is formed between the first inclined section 12b and the main board body 11.

[0041] The gap between the ribs 122 and the main body 11 forms a clamping space 123 .

[0042] In order to explain the working principle of the specific structure of the PC mask 1, a lamp is provided. Figure 6-8 As shown, the lamp includes the PC mask 1, a lamp box 200, a light source module 300, a driving power supply 400, a cover plate 500, and an end cap 600. A lamp cavity 210 having a light outlet (not shown) is provided within the lamp box 200. The light source module 300 is disposed within the lamp cavity 210. A clip 220 is provided on the inner wall of the lamp cavity 210. The clip 220 forms a snap connection with the clip portion 121 of the PC mask 1, allowing the PC mask 1 to cover the light outlet of the lamp cavity 210. The lamp box 200 is made of aluminum to improve the heat dissipation efficiency of the light source module 300. The driving power supply 400 is provided on the lamp box 200 and is covered and protected by the cover plate 500. End caps 600 are provided at both ends of the lamp box 200 to seal the end caps 600 and prevent dust from easily entering the interior of the lamp box 200.

[0043] A prismatic plate 2 and a diffuser plate 3 are stacked on the PC cover 1, with their edges clamped in the clamping space 123. When light passes through the diffuser plate 3 and the prismatic plate 2, they diffuse the light and control the beam angle, thereby reducing glare.

[0044] Specifically, in the prior art, the prism plate 2 and the diffuser plate 3 are often fixed in a more complicated manner, such as by screws or by pressing the lamp frame onto the lamp holder. These fixing methods not only require a lot of time and effort for installation and disassembly, but are also prone to damage to the prism plate 2 and the diffuser plate 3 during operation, thereby affecting their service life and lighting effect.

[0045] In this embodiment, the edges of the prism plate 2 and the diffuser plate 3 are clamped in the clamping space 123 of the PC mask 1, realizing the function of quick installation and disassembly without tools, greatly shortening the time required for installation and disassembly, and improving work efficiency; this design also facilitates the upgrading of lighting products, and the prism plate 2 and the diffuser plate 3 of different specifications or designs can be easily replaced as needed to meet personalized lighting needs; the PC mask 1 itself has a certain ductility, and the clamping space 123 provides a stable and gentle support for the prism plate 2 and the diffuser plate 3, avoiding physical damage such as scratches and deformation that may be caused by traditional fixing methods (such as screw fixing or pressing), thereby ensuring the integrity and performance of the optical components and ensuring good lighting effects and anti-glare performance.

[0046] Specifically, if Figure 6As shown, the prism plate 2 and the diffuser plate 3 are first installed on the PC mask 1, and then the PC mask 1 is installed on the lamp box 200. During the installation of the PC mask 1, the second inclined section 12c on the mounting bar 12 will be squeezed by the clamping bar 220, so that the mounting bar 12 is tilted in the direction of the rib 122. When the clamping bar 220 passes over the second inclined section 12c, the mounting bar 12 is reset, and the clamping bar 220 is clamped between the first inclined section 12b and the main body 11, that is, clamped in the buckle portion 121, thereby completing the installation of the PC mask 1.

[0047] To sum up, the ribs 122 on the PC mask 1 not only help to increase the ductility of the overall structure and reduce the possibility of the mounting strip 12 cracking when curled, but also can provide a fixing effect for the prism plate 2 and the diffuser plate 3, which is conducive to the rapid installation and disassembly of the prism plate 2 and the diffuser plate 3.

[0048] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PC mask, characterized in that: It includes a main board body, on which are provided two oppositely arranged mounting strips, the outer side of each mounting strip is provided with a snap portion, the inner side of each mounting strip is provided with a rib, and there is a gap between the rib and the main board body; the height of each mounting strip is equal to or less than 5 mm.

2. The PC mask according to claim 1, characterized in that: The buckle portion is a slot structure.

3. The PC mask according to claim 2, characterized in that: The cross section of the mounting bar comprises, from near to far, a rising section, a first inclined section, and a second inclined section based on the main body; The first end of the first inclined section is connected to the rising section, the second end of the first inclined section is connected to the first end of the second inclined section, the first inclined section is inclined from its first end to its second end in a direction away from the rib, and the second inclined section is inclined from its first end to its second end in a direction close to the rib; the snap portion is formed between the first inclined section and the main board body.

4. The PC mask according to claim 1, characterized in that: The ratio of the height of the mounting bar to its thickness is 5:1 to 5:

2.

5. The PC mask according to claim 4, characterized in that: The thickness of the rib is the same as that of the mounting bar.

6. The PC mask according to claim 1, characterized in that: The gap between the ribs and the main body forms a clamping space.

7. The PC mask according to claim 6, characterized in that: The width of the rib is at least 3 mm.

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