CN214873843U

CN214873843U - Internal luminous writing white board capable of automatically adjusting brightness

Info

Publication number: CN214873843U
Application number: CN202121487844.5U
Authority: CN
Inventors: 吴仕斌
Original assignee: Shenzhen Dgo Optoelectronics Products Co ltd
Current assignee: Shenzhen Dgo Optoelectronics Products Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-11-26
Anticipated expiration: 2031-07-01

Abstract

The utility model provides an automatic adjust interior luminous whiteboard of writing of luminance relates to luminous blank field, including the printing opacity panel, go up connecting piece and adjusting part, printing opacity panel bottom and left and right sides all are provided with the side frame, side frame internally connected with circuit board, circuit board one side is connected with LED lamp strip, printing opacity panel bottom both corners are provided with down the connecting piece, printing opacity panel top both corners are provided with the connecting piece, go up the connecting piece top and seted up the cooperation groove, go up two and be connected with a frame between the connecting piece, go up the inside adjusting part that is provided with of connecting piece, be used for with a frame and last connecting piece separation. This kind of self-adjusting luminance's interior luminous writing whiteboard reduces the reflection of light of blank through the cooperation of printing opacity panel, light guide plate and reflecting plate, is favorable to viewer's use, and the interact through pressing briquetting, spring and kicking block simultaneously is ejecting with the topside frame to the separation of topside frame and last connecting piece.

Description

Internal luminous writing white board capable of automatically adjusting brightness

Technical Field

The utility model relates to a luminous blank technical field specifically is an automatic interior luminous whiteboard of writing of adjusting luminance.

Background

The whiteboard is a writing surface, generally made of white metal plate material, and functions like the blackboard, and is a writing tool capable of being repeatedly erased and written, generally used for teaching, conference discussion, or personal and family events, but brightness adjustment is necessary for the whiteboard because the whiteboard is affected by external light when used in the daytime.

The existing luminous whiteboard mostly has the brightness adjusted manually, the fonts on the whiteboard can be clearly and intuitively known by a viewer when the surrounding environment is complex, the brightness of the whiteboard needs to be frequently adjusted when the whiteboard is written and viewed, and the practicability of the whiteboard is reduced.

But the whiteboard of current writing mostly takes place reflection of light phenomenon easily because external light is too big, and long-term use can harm viewer's eyesight, is unfavorable for the use of whiteboard, is difficult to dismantle when cleaning whiteboard inside simultaneously, leads to the inside a large amount of dust impurity of collecting up of frame, influences the practicality of whiteboard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the background art, provide an automatic adjust luminance's interior luminous whiteboard of writing, the cooperation through printing opacity panel, light guide plate and reflecting plate reduces the reflection of light of blank, is favorable to viewer's use, and the interact through pressing briquetting, spring and kicking block is ejecting with the topside frame simultaneously to the separation of topside frame and last connecting piece.

In order to achieve the above purpose, the utility model provides the following technical scheme, an inner luminous writing white board capable of automatically adjusting brightness, which comprises a light transmission panel, an upper connecting piece and an adjusting component;

side frames are arranged at the bottom and the left and right sides of the light-transmitting panel, a circuit board is connected inside the side frames, one side of the circuit board is connected with an LED lamp bar, lower connecting pieces are arranged at two corners of the bottom of the light-transmitting panel, upper connecting pieces are arranged at two corners of the top of the light-transmitting panel, a matching groove is formed in the top of each upper connecting piece, and a top frame is connected between the two upper connecting pieces;

and an adjusting component is arranged inside the upper connecting piece and used for separating the top frame from the upper connecting piece.

Furthermore, the adjusting assembly comprises an adjusting groove, a spring, a pressing block and a jacking block, the adjusting groove is formed in the upper connecting piece, the pressing block is connected in the adjusting groove in a sliding mode, the spring is connected between the adjusting groove and the pressing block, a groove is formed in the top of the adjusting groove, and the jacking block is connected in the groove in a sliding mode.

Furthermore, the adjustment groove is communicated with the groove, and one end of the pressing block and the bottom end of the ejecting block are both provided with inclined planes.

Furthermore, magnetic stripes are arranged on two sides of the bottom of the matching groove, magnetic blocks are connected to two sides of the bottom of the top frame, and the magnetic stripes are magnetically connected with the magnetic blocks.

Further, the back of the light-transmitting panel is provided with a light guide plate, the back of the light guide plate is connected with a reflecting plate, the side frame is of a U-shaped structure, and the light-transmitting panel, the light guide plate and the reflecting plate are all located inside the side frame.

Furthermore, one of them side frame openly is provided with photosensitive module and control switch, the control switch bottom is provided with power socket, the circuit board is electric connection with LED lamp strip, control switch and power socket respectively, photosensitive module signal output part is signal connection with circuit board signal receiving terminal.

The utility model provides an automatic adjust interior luminous whiteboard of writing of luminance has following beneficial effect:

1. the utility model has the advantages of, the light guide plate can pass the printing opacity panel with the illumination guide that LED lamp strip sent, the light that can make the light guide plate guide through the printing opacity panel, and the reflection plate can avoid the illumination of LED lamp strip to spill along the light guide plate back simultaneously, reduces the reflection of light of blank through the cooperation of printing opacity panel, light guide plate and reflection plate.

2. Secondly, can be ejecting with the topside frame through the interact of pressing down the piece, spring and kicking block to the separation of topside frame and last connecting piece can take out printing opacity panel, light guide plate and reflecting plate this moment, thereby can clean the inside spare part of blank.

Drawings

Fig. 1 is a front view of the overall structure of the present invention.

Fig. 2 is a top view of the side frame structure of the present invention.

Fig. 3 is a schematic view of the structure of the upper connecting member of the present invention.

Fig. 4 is a side sectional view of the upper connecting member structure of the present invention.

In FIGS. 1-4: 1. a light transmissive panel; 101. a side frame; 102. a lower connecting piece; 2. an upper connecting piece; 201. a mating groove; 2011. a magnetic strip; 202. an adjustment groove; 2021. a spring; 203. a pressing block; 204. a top block; 3. a top frame; 4. a circuit board; 401. an LED light bar; 5. a light guide plate; 6. a reflective plate; 7. a photosensitive module; 8. a control switch; 9. a power outlet.

Detailed Description

Example (b):

referring to figures 1-4 of the drawings,

as shown in fig. 1, the internal light emitting writing whiteboard capable of automatically adjusting brightness provided in this embodiment includes a light transmitting panel 1, an upper connector 2 and an adjusting assembly;

the bottom and the left and the right sides of the light-transmitting panel 1 are provided with side frames 101, the circuit board 4 is arranged inside the side frames 101, one side of the circuit board 4 is connected with an LED lamp strip 401, two corners of the bottom of the light-transmitting panel 1 are provided with lower connecting pieces 102, upper connecting pieces 2 are arranged at two corners of the top of the light-transmitting panel 1, the top of each upper connecting piece 2 is provided with a matching groove 201, and a top frame 3 is arranged between the two upper connecting pieces 2;

an adjusting component is arranged inside the upper connecting piece 2 and used for separating the top edge frame 3 from the upper connecting piece 2.

The upper connecting piece 2 is made of an aluminum alloy material, the aluminum alloy material has light metal mass, the overall weight of the luminous white board can be reduced, the portability of the luminous white board is improved, meanwhile, the aluminum alloy material has good metal structure strength, enough supporting force and protection effect can be provided for the luminous white board, and the overall structure stability is improved;

the upper connecting piece 2 can be made of carbon steel material, the carbon steel material has good wear resistance, the service life of the upper connecting piece 2 can be effectively prolonged, meanwhile, the carbon steel material is low in content relative to sulfur, phosphorus and other non-metallic inclusions of an aluminum alloy material, the influence on the overall structure of the upper connecting piece 2 is small, the damage probability of the upper connecting piece 2 is reduced, but the upper connecting piece 2 is made of the aluminum alloy material because the side frame 101 and the top frame 3 can be connected, and the cost of the carbon steel material is relatively high.

As shown in fig. 4, further, the adjusting assembly includes an adjusting groove 202, a spring 2021, a pressing block 203 and a top block 204, the adjusting groove 202 is formed inside the upper connecting member 2, the pressing block 203 is slidably connected inside the adjusting groove 202, the spring 2021 is connected between the adjusting groove 202 and the pressing block 203, the groove is formed at the top of the adjusting groove 202, the top block 204 is slidably connected inside the groove, the pressing block 203 is pushed to move towards the inside of the adjusting groove 202, the spring 2021 is pressed along with the movement of the pressing block 203, and the top block 204 can be pushed out by the pressing block 203, so as to push out the top frame 3 located between the two upper connecting members 2.

As shown in fig. 4, further, the adjusting groove 202 is communicated with the groove, an inclined surface is provided at one end of the pressing block 203 close to the spring 2021, and an inclined surface is provided at the bottom of the top block 204, so that when the pressing block 203 is pressed, the top block 204 can receive a transverse thrust from the pressing block 203, the transverse thrust can be converted into an obliquely upward thrust by the contact of the two inclined surfaces, and the top block 204 can slide along the groove.

As shown in fig. 3-4, further, both sides of the bottom of the matching groove 201 are provided with magnetic stripes 2011, both sides of the bottom of the top frame 3 are connected with magnetic blocks, and the magnetic stripes 2011 are magnetically connected with the magnetic blocks, so that the top frame 3 can be always positioned at the top of the upper connecting piece 2 under the action of gravity through magnetic connection, and can be prevented from falling by being limited by the matching groove 201, and meanwhile, the magnetic connection is adopted to enable the top block 204 to eject the top frame 3.

As shown in fig. 2, furthermore, the light guide plate 5 is arranged at the back of the light-transmitting panel 1, the light guide plate 5 can guide the illumination emitted by the LED light strip 401 and fill the whole light guide plate 5, the condition of uneven illumination of the whiteboard is avoided, the reflecting plate 6 is connected at the back of the light guide plate 5, the reflecting plate 6 can avoid the illumination of the LED light strip 401 to leak along the back of the light guide plate 5, the side frame 101 is of a U-shaped structure, the light-transmitting panel 1, the light guide plate 5 and the reflecting plate 6 are both located inside the side frame 101, and the overall structural stability of the whiteboard is improved through tight connection.

As shown in fig. 1, furthermore, one of the side frames 101 is provided with photosensitive module 7 and control switch 8 in the front, control switch 8 bottom is provided with power socket 9, circuit board 4 respectively with LED lamp strip 401, control switch 8 and power socket 9 are electric connection, photosensitive module 7 signal output part is signal connection with circuit board 4 signal receiving terminal, when photosensitive module 7 senses external illumination and changes, photosensitive module 7 signal output part emission signal to circuit board 4 signal receiving terminal, make circuit board 4 adjust the current output to LED lamp strip 401, thereby reach the effect of adjusting LED lamp strip 401 luminance.

When the utility model is used, when the luminous white board is used in the environment with proper illumination, a user can write on the surface of the light transmission panel 1 directly, no reflection phenomenon is generated at the moment, when the luminous white board is used in the environment with strong illumination, the user turns on the control switch 8, the circuit board 4 can supply power to the LED lamp strip 401 and emit illumination at the moment, the illumination can enter the light guide plate 5, the light guide plate 5 can guide the illumination emitted by the LED lamp strip 401 and fill the whole light guide plate 5, the phenomenon of uneven illumination of the white board is avoided, due to the action of the reflecting plate 6, the reflecting plate 6 can prevent the illumination of the LED lamp strip 401 from leaking along the back of the light guide plate 5, the illumination can pass through the light transmission panel 1, the brightness on the light transmission panel 1 is improved, the user can clearly see the characters on the surface of the light transmission panel 1, when the luminous white board is used in the environment with changed illumination, the photosensitive module 7 senses the change of external illumination, a signal output end of the photosensitive module 7 transmits a signal to a signal receiving end of the circuit board 4, so that the circuit board 4 adjusts the current output to the LED lamp strip 401, and the effect of adjusting the brightness of the LED lamp strip 401 is achieved according to the intensity of the external illumination, when the light-emitting white board needs to be disassembled or cleaned, a user presses the pressing blocks 203 of the connecting pieces 2 at two corners, the pressing blocks 203 move towards the inside of the adjusting groove 202, the pressing blocks 203 move to press the spring 2021, the top blocks 204 are in contact with the pressing blocks 203, at the moment, due to the effect of the inclined planes, the contact of the two inclined planes can convert the transverse thrust into the oblique upward thrust, the top blocks 204 can slide upwards along the grooves, the top blocks 204 are ejected by the pressing blocks 203, the magnetic strips 2011 are far away from the magnetic blocks, and the top edge frame 3 between the two upper connecting pieces 2 is ejected upwards, the user can dismantle the blank this moment, and when needs installation top frame 3, make top frame 3 and cooperation groove 201 align, with top frame 3 towards cooperation groove 201 removal, because magnetic stripe 2011 is connected with the magnetism of magnetic path, top frame 3 can be rapidly and accurately cooperate inside cooperation groove 201 to accomplish the connection of top frame 3, this kind of self-adjusting luminance's interior luminous whiteboard of writing has self-adjusting whiteboard luminance and convenient to detach's characteristics.

Claims

1. An internal luminous writing whiteboard capable of automatically adjusting brightness is characterized by comprising a light-transmitting panel, an upper connecting piece and an adjusting assembly;

2. The internal-lighting writing whiteboard capable of automatically adjusting brightness according to claim 1, wherein the adjusting assembly comprises an adjusting groove, a spring, a pressing block and a top block, the adjusting groove is formed inside the upper connecting piece, the pressing block is slidably connected inside the adjusting groove, the spring is connected between the adjusting groove and the pressing block, a groove is formed at the top of the adjusting groove, and the top block is slidably connected inside the groove.

3. The internal luminous writing whiteboard capable of automatically adjusting brightness according to claim 2, wherein the adjusting groove is communicated with the groove, and inclined planes are arranged at one end of the pressing block and the bottom end of the top block.

4. The internal luminous writing whiteboard capable of automatically adjusting brightness as claimed in claim 1, wherein magnetic stripes are arranged on both sides of the bottom of the matching groove, magnetic blocks are connected to both sides of the bottom of the top frame, and the magnetic stripes are magnetically connected with the magnetic blocks.

5. The internal-lighting writing whiteboard of claim 1, wherein a light guide plate is disposed on the back of the light-transmitting panel, a reflective plate is connected to the back of the light guide plate, the side frame has a "U" shape, and the light-transmitting panel, the light guide plate and the reflective plate are disposed inside the side frame.

6. The internal luminous writing whiteboard of claim 1, wherein a photosensitive module and a control switch are arranged on the front surface of one of the side frames, a power socket is arranged at the bottom of the control switch, the circuit board is electrically connected with the LED light bar, the control switch and the power socket respectively, and a signal output end of the photosensitive module is in signal connection with a signal receiving end of the circuit board.