CN217329578U

CN217329578U - Classroom lamp with uniform light emission

Info

Publication number: CN217329578U
Application number: CN202220339195.2U
Authority: CN
Inventors: 汪涛; 蒲纪忠; 甘彩英; 赵艺佼
Original assignee: CH Lighting Technology Co Ltd
Current assignee: CH Lighting Technology Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-08-30
Anticipated expiration: 2032-02-18

Abstract

The application discloses a classroom lamp capable of emitting light uniformly, which comprises a lamp body and a hanging assembly, wherein the lamp body is provided with a front surface and a back surface which are opposite, two groups of sliding rails extending along the same direction are arranged on the back surface, and the two sliding rails of the same group are positioned on two sides of the back surface; the hanging assembly comprises an arched support and a hanging rod, sliding parts matched with the same group of sliding rails are arranged at two ends of the support, and the bottom of the hanging rod is connected with the center of the support; compared with the prior art, the scheme has the advantages that the stress points of the support and the lamp body are located on two sides of the back surface, so that the deformation of the back of the lamp body can be reduced, and the light emitting of the classroom lamp is prevented from being influenced.

Description

Classroom lamp with uniform light emission

Technical Field

The application relates to the field of lamps, in particular to a classroom lamp capable of emitting light uniformly.

Background

Most of the existing classroom lamp products are opaque on the back, and a small part of the existing classroom lamp products have a back light transmission function, and in the small part of the classroom lamp products with the back light transmission function, a common material is a light-transmitting plastic material, and the rigidity of the material is poor. In the prior art, for example, chinese patent publication No. CN211450649U discloses a classroom lamp, which includes a lamp body, a guide rail and a suspension rod, wherein the guide rail is installed at the middle position of the lamp body, and the suspension rod is adjustably fixed on the guide rail.

However, when the lamp body is installed, the back of the lamp body is deformed under stress, and the light emitting of the classroom lamp is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present application provides a classroom lamp with uniform light emission, including:

the lamp body is provided with a front surface and a back surface which are opposite, the back surface is provided with two groups of slide rails which extend along the same direction, and the two slide rails of the same group are positioned on two sides of the back surface;

the suspension assembly comprises an arched support and a suspension rod, sliding parts matched with the same group of sliding rails are arranged at two ends of the support, and the bottom of the suspension rod is connected with the center of the support.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative may be combined individually for the above general solution or between several alternatives without technical or logical contradictions.

Optionally, the lamp body includes:

the LED lamp comprises at least one lamp strip and a light source, wherein the lamp strip comprises a substrate, LED lamp beads fixed on the substrate and lenses covered on the LED lamp beads;

the back plate is of a light-transmitting shell-shaped structure, and the central area of the back plate is arched and is configured to be used for installing and fixing the light bar;

the diffusion plate has a light transmission function and is arranged opposite to the back plate;

the frame is formed by surrounding a plurality of frame strips, and the frame strips are provided with a first mounting surface and a second mounting surface which respectively support the edges of the back plate and the diffusion plate.

Optionally, the lamp body includes a brightness enhancement film and a prismatic crystal plate stacked below the diffusion plate.

Alternatively, the lamp body includes a grating plate stacked below the diffusion plate.

Optionally, the slide rail is fixed to the first mounting surface by screws.

Optionally, the sliding rail is a C-shaped section bar with a sliding groove for the sliding part to slide.

Optionally, the bracket is formed by bending a plate, and a through hole for the suspension rod to pass through is formed in the center of the bracket.

Optionally, the suspension rod is provided with a threaded section, and the threaded section is provided with a nut for limiting the movement of the suspension rod relative to the support.

Optionally, a mounting gap is formed between the central position of the bracket and the back plate.

In this application classroom lamp, the stress point of support and lamp body is located the both sides at the back to can reduce the deformation at lamp body back, avoid the light-emitting of classroom lamp to receive the influence.

Drawings

FIG. 1 is a schematic diagram of a classroom lamp according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of the hanger assembly of FIG. 1;

FIG. 3 is a partial cross-sectional view of the classroom lamp of FIG. 1;

FIG. 4 is a partial view of the classroom lamp of FIG. 3;

FIG. 5 is a schematic structural view of the slide rail shown in FIG. 1;

FIG. 6 is a schematic view of the structure of the light bar shown in FIG. 3;

FIG. 7 is an exploded view of the lamp body of FIG. 1;

fig. 8 is an exploded view of another embodiment of the lamp body of fig. 1.

The reference numerals in the figures are illustrated as follows:

100. a classroom light;

10. a lamp body; 11. a slide rail; 111. a chute; 12. a light bar; 121. a substrate; 122. LED lamp beads; 13. a frame; 131. a frame strip; 132. a horizontal portion; 133. a vertical portion; 134. a first mounting surface; 135. a second mounting surface; 14. a back plate; 141. an edge region; 142. a central region; 144. a rib is protruded; 15. a diffuser plate; 16. a brightness enhancement film; 17. a prismatic crystal plate; 18. a grid plate; 19. a drive power supply;

20. a hanging component; 21. a support; 22. a boom; 221. a pin hole; 23. a nut; 24. and (7) mounting a seat.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 8, the present application provides a classroom lamp 100 with uniform light emission, which includes a lamp body 10 and at least two sets of hanging components 20, the lamp body 10 has opposite front and back surfaces, two sets of sliding rails 11 extending in the same direction are mounted on the back surface, two sliding rails 11 of the same set are located on two sides of the back surface, each hanging component 20 includes an arched support 21 and a hanging rod 22, sliding parts (not shown) matched with the sliding rails 11 of the same set are disposed at two ends of the support 21, and the bottom of the hanging rod 22 is connected to the center of the support 21.

The lamp body 10 has a length direction (e.g., X direction in fig. 1) and a width direction (e.g., Y direction in fig. 1) perpendicular to the length direction, the sets of sliding rails 11 are sequentially arranged along the length direction of the lamp body 10, and the sliding rails 11 extend along the length direction of the lamp body 10. The position of the bracket 21 relative to the lamp body 10 can be adjusted along the slide rail 11, so that the installation distance between the hanging components 20 can be adjusted.

In the configuration of the lamp body 10, referring to one embodiment, the lamp body 10 includes a bezel 13, a back plate 14, a diffusion plate 15, a driving power supply 19, and at least one light bar 12, the back plate 14 is mounted on the back surface of the bezel 13, the diffusion plate 15 has a light-transmitting function and is mounted on the front surface of the bezel 13 to be opposite to the back plate 14, the light bar 12 is disposed between the back plate 14 and the diffusion plate 15 and is mounted on the lower surface of the back plate 14, and the driving power supply 19 is mounted on the back plate 14 and is electrically connected to the light bar 12 through a power line.

In the arrangement of light bars 12, referring to one embodiment, the number of light bars 12 is at least three, for example, the number of light bars 12 is four in the figure. Each light bar 12 is of a strip-shaped structure and is arranged in parallel, each single light bar 12 comprises a substrate 121 and a plurality of LED beads 122 mounted on the substrate 121, each LED bead 122 is sequentially arranged along the length direction of the light bar 12, and the LED beads 122 are distributed in a matrix manner on the inner side of the back plate 14, so that light sources are uniformly distributed. Light bar 12 also includes a lens overlying LED bead 122. The light emitted by the LED lamp beads 122 sequentially passes through the lens and the diffusion plate 15, and after the light is diffused, the plurality of LED point light sources form a uniform surface light source.

The lens on the light bar 12 is mainly used for diffusing light, so that the light emitting angle of the LED lamp bead 122 is increased, the possibility of occurrence of dark spots is reduced, and the overall height of the lamp body 10 (the height of the back plate 14) can be reduced. The lens is fixed on the LED lamp bead 122 through epoxy glue or UV glue.

The substrate 121 may be a metal substrate 121, preferably an aluminum substrate 121. In some embodiments, the substrate 121 is coated with white solder resist ink to improve light reflection efficiency. Base plate 121 can be secured to the lower surface of back plate 14 by screws, preferably adhesively secured to the lower surface of back plate 14 by light bar 12.

In the specific configuration of the frame 13, referring to one embodiment, the frame 13 is formed by splicing a plurality of (usually four) frame bars 131; the frame strips 131 are made of metal (e.g., aluminum alloy), and the ends of the adjacent frame strips 131 are welded, corner-locked or end-capped. Of course, the frame strip 131 may also be made of polymer material by injection molding. The cross section of the frame strip 131 is an L-shaped structure, and includes a horizontal portion 132 and a vertical portion 133, the edge of the diffusion plate 15 and the edge of the back panel 14 are overlapped on the horizontal portion 132, and the vertical portion 133 is higher than the edge of the back panel 14 for shielding the edge of the back panel 14, so as to play a role in decoration and protection.

The inside thickness of the corner of the frame strip 131 is increased to form a thickened portion, so that a step structure is formed in the horizontal portion 132 to form a first mounting surface 134 and a second mounting surface 135 with the horizontal portion 132, the edge of the diffuser plate 15 is overlapped on the lower first mounting surface 134, and the edge of the back plate 14 is overlapped on the upper second mounting surface 135 and is fixed by fastening screws. To save material, in some embodiments, the thickening is a hollow structure.

In one embodiment, back panel 14 is a light-transmissive shell-like structure, and central region 142 is arched and configured to receive light bar 12. The back plate 14 has light energy transmitting to make the lamp have the function of upward light, and the back plate 14 is formed by plastic injection molding, plastic suction molding or blow molding.

The back plate 14 further includes a rim area 141 disposed at the periphery of the central area 142, the central area 142 forms a recess spaced a certain distance from the diffuser plate 15, the diffuser plate 15 is disposed opposite to the back plate 14 to close the recess, and the rim area 141 is overlapped on the second mounting surface 135 of the bezel 131. The edge region 141 of the backplate 14 is made into a rib 144 extending along the side length direction of the backplate 14, the rib 144 can increase the supporting strength of the whole backplate 14, especially the structural strength of the edge region 141 is increased, the rib 144 abuts against the edge of the diffuser plate 15 to make the edge abut against the first mounting surface 134, because the backplate 14 has certain elasticity, when the rib 144 abuts against the diffuser plate 15, the rib 144 can be elastically deformed, so that the rib 144 applies pressure to the diffuser plate 15, the rib 144 and the first mounting surface 134 cooperate with the edge of the clamping diffuser plate 15 to avoid the edge of the diffuser plate 15 from being bent, and thus the central part of the diffuser plate 15 is prevented from collapsing downwards.

In the present embodiment, as shown in fig. 7, the lamp body 10 includes the bright enhancement film 16 and the prism plate 17 stacked below the diffusion plate 15, so that the glare value can be effectively reduced, and the height of the classroom lamp 100 can be reduced, thereby saving the material cost of the product. Wherein, the prismatic crystal plate 17 is made of plastic, the diameter of prismatic crystal particles in the prismatic crystal plate 17 is 1.5mm-2.5mm (such as 2mm), and the plate thickness is 1mm-2mm (such as 1.5 mm); the brightness enhancement film 16 is made of plastic, and can increase the light gathering property, reduce the light-emitting angle and effectively reduce the glare value.

In other embodiments, as shown in FIG. 8, lamp body 10 includes a grating plate 18 stacked below diffuser plate 15, which is effective in reducing glare values. Wherein, grid plate 18 is the plastics material, integrative injection moulding, and the outside can select to electroplate, can make UGR less than 16.

The slide rail 11 is arranged, and referring to one embodiment, the slide rail 11 is fixed on the first mounting surface 134 by screws; the slide rail 11 is a C-shaped member with a slide groove 111 for sliding the sliding member, and the slide groove 111 extends along the length direction of the lamp body 10. Wherein, the slide rail 11 adopts an aluminum extrusion process, and the surface adopts an oxidation process.

The bracket 21 is arranged, in reference to one embodiment, the bracket 21 is formed by bending a plate, and a through hole for the suspension rod 22 to pass through is formed in the center; the suspension rod 22 is provided with a threaded section, and the threaded section is provided with a nut 23 for limiting the movement of the suspension rod relative to the bracket 21; the bracket 21 is connected to the slider by screws. Wherein, the nut 23 can be fixedly arranged with the bracket 21; the end of the suspension rod 22 passing through the nut 23 is provided with a bolt, the suspension rod 22 is provided with a pin hole 221 for passing through the bolt, and the bolt is arranged to prevent the suspension rod 22 from being pulled away from the nut 23. The end of the boom 22 may extend between the bracket 21 and the back plate 14, and a mounting gap is provided between the center of the bracket 21 and the back plate 14 in order to avoid the end of the boom 22.

In order to fix the classroom lamp 100 to the ceiling, referring to one embodiment, the hanger assembly 20 further includes a mounting seat 24, wherein the mounting seat 24 is sleeved on the top outer side of the suspension rod 22 and is mounted on the suspension rod 22 through a fixing pin. For example, the mounting seat 24 is in a zigzag structure, the opening of the zigzag structure faces the ceiling, and a through hole for the suspension rod 22 to pass through is formed in the middle of the second mounting frame; the ends of the inverted V-shaped structure are mounted to the ceiling by expansion screws, and the hanger rods 22 are secured by bolts after passing through the through holes.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. Classroom lamp with uniform light emission, characterized in that it comprises:

the lamp body is provided with a front surface and a back surface which are opposite, two groups of sliding rails extending along the same direction are arranged on the back surface, and the two sliding rails of the same group are positioned on two sides of the back surface;

2. The classroom lamp of claim 1 wherein the lamp body includes:

3. The classroom lamp of claim 2 wherein the lamp body includes a brightness enhancement film and a prismatic crystal plate stacked below a diffuser plate.

4. The classroom lamp of claim 2 wherein the lamp body includes a grill plate stacked below a diffuser plate.

5. The classroom lamp as set forth in claim 2, wherein the slide rail is secured to the first mounting surface by screws.

6. The classroom lamp as set forth in claim 1, wherein the slide rail is a C-shaped section with a slot for the sliding member to slide.

7. The classroom lamp as set forth in claim 1, wherein the support is formed by bending a plate material, and the center portion has a through hole for the hanger bar to pass through.

8. The even emitting classroom lamp of claim 7 wherein the hanger bar is provided with a threaded section having a nut disposed thereon that limits movement of the hanger bar relative to the support.

9. The classroom lamp as set forth in claim 2, wherein the center of the support is spaced from the back plate by a mounting gap.