CN211551364U - LED eyeshield blackboard lamp - Google Patents

Abstract

The utility model relates to a LED eye-protection blackboard lamp, which comprises a lamp shell and a hanger rod, and further comprises a circuit board, an LED, a lens and a diffusion plate; the LED is connected to the circuit board; a bulge part, an inclined part and a connecting part which are connected in sequence are arranged on one side of the lamp shell from top to bottom; the bulge part bulges outwards, and the inclined part inclines outwards along the upward direction; two opposite first limiting grooves are arranged on the inclined part, and two ends of the circuit board are matched with the first limiting grooves; two opposite second limiting grooves are formed in the two ends of the inclined part, the two ends of the lens are matched with the second limiting grooves, and the lens covers the circuit board; the protruding part and the connecting part are respectively provided with a third limiting groove which is opposite to each other, and two ends of the diffusion plate are matched with the third limiting grooves. The utility model discloses a LED eyeshield blackboard lamp illuminance degree of consistency is excellent, can reach the effect of eyeshield, and easily installs.

Description

An LED eye protection blackboard light

technical field

The utility model relates to the technical field of lamps, in particular to an LED eye protection blackboard lamp.

Background technique

At present, the classrooms of most schools in China use simple fluorescent lamps. These lamps have problems such as substandard illumination, direct glare, stroboscopic effect, light shaking or cold light color, which can easily cause students' vision loss. Especially for the blackboard lamps used in classrooms, the uneven illumination on the blackboard will affect the vision of students and teachers. In addition, the existing classroom lamps generally have the problem of inconvenient installation.

Utility model content

In view of the deficiencies of the prior art, the purpose of the present invention is to provide an LED eye protection blackboard lamp, which has excellent illumination uniformity, can achieve the effect of eye protection, and is easy to install.

In order to achieve the purpose of the present utility model, the present utility model provides an LED eye protection blackboard lamp, comprising a lamp housing and a hanger rod, and the LED eye protection blackboard lamp further comprises a circuit board, an LED, a lens and a diffuser plate; the LED connected to the circuit board; one side of the lamp housing is provided with a convex part, an inclined part and a connecting part connected in sequence from top to bottom; the convex part protrudes outward, and the inclined part is along the upward direction The direction is inclined outward; the inclined part is provided with two opposite first limit grooves, and the two ends of the circuit board are matched with the first limit groove; the two ends of the inclined part are provided with two opposite The second limiting groove, the two ends of the lens are matched with the second limiting groove, the lens covers the circuit board; the protruding part and the connecting part are respectively provided with opposite third limiting grooves , both ends of the diffuser plate are matched with the third limiting groove.

In a further technical solution, the bottom surface of the circuit board is adjacent to the inclined portion, and the diffusion plate is parallel to the inclined portion.

A further technical solution is that, two ends of the lens are provided with clamping blocks, and the clamping blocks are matched with the second limiting grooves. The main body of the lens protrudes outward relative to the clamping block.

A further technical solution is that the LED eye protection blackboard light further includes a power supply, a cavity is formed in the lamp housing, and the power supply is located in the cavity.

A further technical solution is that the LED eye protection blackboard light further includes an end cap, and the end cap covers both sides of the casing, the circuit board, the lens and the diffuser plate.

A further technical solution is that a mounting hole is provided on the inner side of the lamp housing, a through hole is provided on the end cover, and the through hole and the mounting hole are connected by a fastener.

A further technical solution is that a mounting groove is further provided on the top of the lamp housing, a first clamping block is connected to the bottom of the suspension rod, and the first clamping block is clamped on the mounting groove.

A further technical solution is that the bottom end of the boom is connected with a connecting piece, the end of the connecting piece is provided with two first clamping blocks, and the installation groove is clamped between the two first clamping blocks.

A further technical solution is that the LED eye protection blackboard light further includes a mounting bracket and a decorative cover; the top end of the boom is connected with a second clamping block, and the second clamping block clamps the decorative cover and the installation bracket, so the The decorative cover covers the mounting bracket.

A further technical solution is that the installation groove extends along the length direction of the housing; the first clamping block and the second clamping block are nuts; the connecting piece includes a connecting shaft and a swivel seat, and the connecting The shaft is connected to the bottom end of the boom, the swivel base is connected to the first clamping block, and the connecting shaft is ball-connected to the swivel base.

Compared with the prior art, the utility model can achieve the following beneficial effects:

The LED eye protection blackboard lamp of the utility model adopts the LED light source and has the advantages of high light efficiency, energy saving and environmental protection, long service life, low maintenance cost and the like. The utility model also improves the illuminance uniformity of the light and prevents glare through the lens and the diffuser plate, improves the eye comfort, and effectively avoids the damage to the eyesight of students or teachers caused by the blackboard light. The lamp housing of the blackboard lamp of the utility model is provided with a plurality of limiting grooves, which are respectively used to fix the circuit board, the lens and the diffuser plate, so it can be seen that the classroom lamp of the utility model is easy to install.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of an embodiment of the LED eye protection blackboard lamp of the present invention at a first angle.

FIG. 2 is a schematic three-dimensional structure diagram of an embodiment of the LED eye protection blackboard lamp of the present invention at a second angle.

FIG. 3 is a schematic exploded view of the structure of an embodiment of the LED eye protection blackboard lamp of the present invention.

4 is a schematic structural diagram of the cooperation of a boom, a connecting piece, a first clamping block, a second clamping block, a decorative cover and a mounting bracket in an embodiment of the LED eye protection blackboard lamp of the present invention.

5 is a schematic structural diagram of a lamp housing in an embodiment of the LED eye protection blackboard lamp of the present invention.

6 is a schematic structural diagram of the cooperation of a lamp housing, a suspension rod, a power supply, a circuit board, a lens and a diffuser plate in an embodiment of the LED eye protection blackboard lamp of the present invention.

The present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Detailed ways

As shown in FIGS. 1 to 6 , this embodiment provides an LED eye protection blackboard light, including a lamp housing 10 , a hanger 20 , a circuit board 30 , an LED 40 , a lens 50 , a diffuser plate 60 , a power supply 70 , and an end cover 80 , a decorative cover 90 and a mounting bracket 100 . Wherein, the LED 40 can be an LED lamp bead, preferably an LED lamp bead with a color temperature between 3300K and 5500K and a color rendering index greater than 90. The LED 40 is welded on the circuit board 30, the circuit board 30 can be in the shape of a strip, and the LED 40 The number of LEDs 40 is multiple, and multiple LEDs 40 are evenly arranged on the circuit board 30 .

One side of the lamp housing 10 is provided with a raised portion 11 , an inclined portion 12 and a connecting portion 13 connected in sequence from top to bottom.

The inclined portion 12 is provided with two opposite first limiting grooves 14, and both ends of the circuit board 30 are matched with the first limiting grooves 14, so that the circuit board 30 is positioned on the inclined portion 12. Specifically, in this embodiment, the circuit The bottom surface of the board 30 is adjacent to the inclined portion 12 , the surface of the circuit board 30 connected with the LED 40 faces the outside, and the light can illuminate the blackboard after the blackboard lamp is installed.

The two ends of the inclined portion 12 are further provided with two opposite second limiting grooves 15 . Both ends of the lens 50 are matched with the second limiting grooves 15 , and the lens 50 covers the circuit board 30 . Specifically, two ends of the lens 50 are provided with clamping blocks 51 , and the clamping blocks 51 are matched with the second limiting grooves 15 . The main body of the lens 50 may protrude outward relative to the clamping block 51 , so that the lens 50 can be covered on the circuit board 30 . The surface of the lens 50 facing the circuit board 30 may be in a zigzag shape, so that the light rays passing through the lens 50 can be dispersed more uniformly.

The protruding portion 11 and the connecting portion 13 are respectively provided with opposite third limiting grooves 16 . The diffuser plate 60 is a plate with light diffusing function. In this embodiment, the diffuser plate 60 is parallel to the inclined portion 12 to better diffuse the light emitted by the LED 40 and passing through the lens 50 .

A cavity 17 is formed in the lamp housing 10 , and the power source 70 is located in the cavity 17 , thereby avoiding the external placement of the power source 70 , better protecting the power source 70 and improving the appearance of the lamp. The power supply 70 is electrically connected to the LEDs 40, and the power supply 70 may also be connected to an external power supply circuit, for example, it may be routed in a through hole in the boom 20 to connect the external circuit.

The inner side of the lamp housing 10 is provided with a mounting hole 18 , and the end cover 80 is provided with a through hole 81 , and the through hole 81 and the mounting hole 18 are connected by fasteners such as screws. The end caps 80 cover both sides of the casing 10 , the circuit board 30 , the lens 50 and the diffuser plate 60 , and play a role of sealing and protection to prevent the circuit board 30 , the lens 50 and the diffuser plate 60 from sliding out from the side.

The top of the lamp housing 10 is further provided with a mounting slot 19 , and the mounting slot 19 extends along the length direction of the housing 10 . A first clamping block 21 is connected to the bottom of the hanger rod 20 , and the first clamping block 21 is clamped on the installation groove 19 . Specifically, the bottom end of the hanger rod 20 may be connected with a connecting piece 22 , and the end of the connecting piece 22 is provided with two first clamping blocks 21 , and the installation groove 19 is clamped between the two first clamping blocks 21 . The first clamping block 21 can be a nut, and the nut is threadedly connected to the end of the connecting piece 22 , and the tightness between the first clamping block 21 and the installation groove 19 can be adjusted by rotating the nut. The first clamping block 21 can be clamped into the installation groove 19 from one side of the casing 10 . The connecting piece 22 includes a connecting shaft 23 and a swivel base 24. The connecting shaft 23 is connected to the bottom end of the boom 20. The swivel base 24 is connected to the first clamping block 21. The connecting shaft 23 can be ball-connected with the swivel base 24 and can be rotated in one direction. Therefore, the direction of the lamp is adjusted, and then the connecting shaft 23 and the swivel base 24 are locked by a fixing member such as a screw to fix the direction of the lamp, or the connecting shaft 23 and the swivel base 24 can rotate relative to each other so that the boom 20 can be installed when the lamp is installed. Swing for easy installation.

The top end of the boom 20 is connected with a second clamping block 25 , the second clamping block 25 clamps the decorative cover 90 and the installation bracket 100 , and the decorative cover 90 covers the installation bracket 100 . Specifically, the second clamping block is a nut, and the nut is threadedly connected to the top end of the hanger rod 20 . The top of the hanging rod 20 may be provided with steps so as to be pressed against the lower ends of the decorative cover 90 and the mounting bracket 100 , and the second clamping block 25 may be clamped on the upper ends of the decorative cover 90 and the mounting bracket 100 . The decorative cover 90 can have certain plasticity or elasticity, can be deformed to a certain extent under the action of an external force to facilitate the installation of the mounting bracket 100 , and can automatically or recover its shape under the action of an external force. In other embodiments, the number of the second locking blocks 25 may also be two, and the second locking blocks 25 located at the lower end may be provided at the lower end of the decorative cover 90 so that the upper and lower positions of the decorative cover 90 can be adjusted so as to facilitate the installation of the mounting bracket 100 The decorative cover 90 is covered on the mounting bracket 100 after being mounted on the object. In this embodiment, the mounting bracket 100 includes an engaging piece 101, a connecting piece 102 and a mounting piece 103. The mounting piece 103 is provided with a hole, which is used to mount the mounting bracket 100 to the installation object through threaded fasteners such as screws For example, on the ceiling, the connecting piece 102 connects the mounting piece 103 and the engaging piece 101, the connecting piece 102 is bent relative to the engaging piece 101, the connecting piece 102 is provided with a snap-in hole 104 and a communication hole 105, and the engaging piece 101 is provided with There is a bayonet 106 , the bayonet 104 communicates with the bayonet 106 through the communicating hole 105 , the second catch 25 can pass through the bayonet 104 , and the second catch 25 can be stuck on the communicating hole 105 and the bayonet 106 . When the hanger rod 20 needs to be assembled with the mounting bracket 100, the second block 25 at the end of the hanger rod 20 is passed through the clamping hole 104 and moved to the bayonet 106 through the communication hole 105. After the lamp is installed, the hanger rod The 20 remains engaged with the bayonet 106 under the action of gravity, and cannot be disengaged from the locking hole 104 .

When installing the blackboard light of this embodiment, the circuit board 30 with the LEDs 40 welded on the lamp housing 10 can be firstly installed, the lens 50 is installed, the diffuser plate 60 is installed, the power supply 70 is connected, and then the two ports of the lamp housing 10 are respectively used for terminals The cover 80 is fixed, then the hanging rod 20 is connected, the mounting bracket 100 is fixed on the ceiling, and the decorative cover 90 covers the mounting bracket 100 . It can be seen that the blackboard lamp of the utility model is easy to install.

Finally, it should be emphasized that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a LED eyeshield blackboard lamp, includes lamp body and jib, its characterized in that:

the LED eye-protecting blackboard lamp also comprises a circuit board, an LED, a lens and a diffusion plate; the LED is connected to the circuit board;

a convex part, an inclined part and a connecting part which are connected in sequence are arranged on one side of the lamp shell from top to bottom; the convex part protrudes outwards, and the inclined part inclines outwards along the upward direction;

two opposite first limiting grooves are formed in the inclined part, and two ends of the circuit board are matched with the first limiting grooves; two opposite second limiting grooves are formed in two ends of the inclined part, two ends of the lens are matched with the second limiting grooves, and the lens covers the circuit board;

the protruding portion and the connecting portion are respectively provided with a third limiting groove, and two ends of the diffusion plate are matched with the third limiting grooves.

2. The LED eye-protecting blackboard lamp according to claim 1, characterized in that:

the circuit board bottom surface is adjacent to the inclined portion, and the diffusion plate is parallel to the inclined portion.

3. The LED eye-protecting blackboard lamp according to claim 1, characterized in that:

clamping blocks are arranged at two ends of the lens and matched with the second limiting grooves;

the main body of the lens protrudes outwards relative to the clamping block.

4. An LED eye-protecting blackboard lamp according to any one of claims 1 to 3, characterized in that:

the LED eye-protecting blackboard lamp further comprises a power supply, a cavity is formed in the lamp housing, and the power supply is located in the cavity.

5. An LED eye-protecting blackboard lamp according to any one of claims 1 to 3, characterized in that:

the LED eye-protecting blackboard lamp further comprises an end cover, and the end cover covers the two sides of the lamp housing, the circuit board, the lens and the diffusion plate.

6. The LED eye-protecting blackboard lamp according to claim 5, characterized in that:

the lamp is characterized in that a mounting hole is formed in the inner side of the lamp shell, a through hole is formed in the end cover, and the through hole is connected with the mounting hole through a fastening piece.

7. An LED eye-protecting blackboard lamp according to any one of claims 1 to 3, characterized in that:

the lamp body top still is equipped with the mounting groove, the jib bottom is connected with first fixture block, first fixture block card is in on the mounting groove.

8. The LED eye-protecting blackboard lamp according to claim 7, characterized in that:

the bottom end of the hanging rod is connected with a connecting piece, the tail end of the connecting piece is provided with two first clamping blocks, and the mounting groove is clamped between the two first clamping blocks.

9. The LED eye-protecting blackboard lamp according to claim 8, characterized in that:

the LED eye-protecting blackboard lamp also comprises a mounting bracket and a decorative cover;

the top end of the hanger rod is connected with a second clamping block, the second clamping block clamps the decorative cover and the mounting bracket, and the decorative cover covers the mounting bracket.

10. The LED eye-protecting blackboard lamp according to claim 9, characterized in that:

the mounting groove extends along the length direction of the lamp shell; the first fixture block and the second fixture block are nuts; the connecting piece includes connecting axle and swivel mount, the connecting axle is connected the jib bottom, the swivel mount is connected first fixture block, the connecting axle with swivel mount ball connects.

Images