CN214727719U

CN214727719U - Energy-saving LED handwriting fluorescent plate with power supply

Info

Publication number: CN214727719U
Application number: CN202121185359.2U
Authority: CN
Inventors: 彭威
Original assignee: Zhejiang Feimai Photoelectric Technology Co ltd
Current assignee: Zhejiang Feimai Photoelectric Technology Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-16
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses an energy-saving LED handwriting fluorescent board with its own power supply, which comprises a handwriting board, a light source and a support frame. The support frame is hingedly connected with the handwriting board. The power supply is electrically connected. The light strip group includes LED lights No. 1 and LED lights No. 2. There is an adjustment knob on the power supply. The adjustment knob is provided with a moving contact, a first static contact and a second static contact. The No. 1 LED lights are all electrically connected with the first static contact, and a number of No. 1 LED lights and No. 2 LED lights are electrically connected with the second static contact. The utility model has a reasonable structure, and selects the dynamic The contact is connected to the first static contact, and the light strip group will emit dim light; adjust the moving contact to connect it with the second static contact, and the light strip group will emit brighter light, which is convenient for displaying the pictures on the writing board. information.

Description

Energy-saving LED handwriting fluorescent plate with power supply

Technical Field

The utility model relates to a fluorescent screen field, in particular to from energy-saving LED handwriting fluorescent screen of taking power.

Background

The fluorescent screen is the bill-board that is used for showing its surface information, writes on the fluorescent screen with the highlighter of various different colours, plugs in the power, shines through the high bright paster light source of LED of fluorescent screen side and sends different colours through the word that the highlighter wrote on ya keli panel, toughened glass panel or toughened glass, and the effect of different flash of light modes, very attractive eye light.

General fluorescent screen all need through the plug connection on civilian alternating current, in some occasions, still need come for the fluorescent screen circular telegram through the wiring board, and the electric wire is directly placed subaerial, not only in a jumble, still can accompany the potential safety hazard. However, if the fluorescent plate is powered by a battery or the like, the problem of power consumption of the battery needs to be considered, and the fluorescent plate needs to emit light for a long time. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a from energy-saving LED handwriting fluorescent screen of taking power has and can provide different luminous luminance under the environment of different luminance, reduces the energy consumption of lamp zone group to increase the advantage of the luminous time of lamp zone group.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an energy-saving LED handwriting fluorescent board with a power supply comprises a handwriting board, a light source and a support frame, wherein the support frame is arranged on the back surface of the handwriting board and is hinged with the handwriting board, the light source comprises a power supply and a plurality of lamp strip groups, the lamp strip groups are all electrically connected with the power supply, a mounting groove is formed in the handwriting board, the lamp strip groups are arranged in the mounting groove, a fixing frame is arranged on the back surface of the handwriting board, the power supply is arranged in the fixing frame and is detachably connected with the fixing frame, each lamp strip group comprises a first LED lamp and a second LED lamp, an adjusting knob is arranged on the power supply, a moving contact, a first fixed contact and a second fixed contact are arranged in the adjusting knob, the first LED lamps are all electrically connected with the first fixed contact, the first LED lamps and the second LED lamps are all electrically connected with the second fixed contact, and the adjusting knob is used for changing the position of the moving contact, so as to be connected with the first fixed contact or the second fixed contact.

Preferably, the power supply outside is equipped with the protective housing, the mount includes a plurality of threaded fixing rods, be equipped with a plurality of jacks on the protective housing, it is a plurality of threaded fixing rods insert respectively in the jack, the last nut that is equipped with of threaded fixing rod, nut threaded connection is on threaded fixing rod, just one side of nut supports one side at the protective housing.

Preferably, one side of the protective shell is provided with a support pad, and the support pad is supported against the back surface of the handwriting board.

Preferably, the back of the handwriting board is provided with a power-on groove, one side of the support pad is embedded into the power-on groove, two power-on interfaces are arranged in the power-on groove, the two power-on interfaces are both connected with a circuit where the lamp strip group is located, the protective shell is provided with two power-on guide pillars, and the two power-on guide pillars are respectively in plug-in fit with the two power-on interfaces.

Preferably, the electric groove is provided with a sealing plate, the upper end of the sealing plate is hinged with the back of the handwriting board, and one side, far away from the hinged position, of the sealing plate is connected with the handwriting board in a buckling mode.

Preferably, the protective case is fixed to a lower end of the back surface of the tablet.

Preferably, the support frame includes horizontal pole, firm pole and two spinal branch poles, the back of handwriting pad has set firmly the sleeve pipe, the horizontal pole is located the sleeve pipe, and with sleeve pipe normal running fit, be equipped with fastening device on the sleeve pipe, two branch poles are located the both ends of horizontal pole respectively, and are connected with the horizontal pole hinge, two one side that branch is relative is equipped with a plurality of firm grooves, the both ends of firm pole are pegged graft with firm groove respectively and are cooperated.

Preferably, the fastening mechanism comprises a fastening bolt and a fastening piece, the fastening bolt is rotatably connected with the upper end of the fastening piece, a threaded hole is formed in the sleeve, the fastening bolt is in threaded connection with the threaded hole, the lower end of the fastening piece is arc-shaped, and the fastening piece is matched with the cross rod.

Preferably, the first LED lamps are connected in parallel, the second LED lamps are connected in parallel, and the first LED lamps and the second LED lamps are connected in series.

The utility model has the advantages that: the power supply and the protective shell can be detached from the back of the handwriting board together, so that the power supply can be charged conveniently, when the handwriting board needs to be used, the protective shell is installed on the fixing frame, the two electrifying guide posts are respectively inserted into the two electrifying interfaces, so that the power supply can supply energy to the lamp strip group, the adjusting knob is rotated, when the external environment brightness is high, the movable contact is suspended, and the lamp strip group is not electrified; when the external environment is dark, the movable contact is connected with the second fixed contact, and all the first LED lamp and the second LED lamp are electrified, so that the brightness of the handwriting board is higher than that of the external environment, and the handwriting board can display information on the handwriting board; when external environment is darker, make movable contact and first static contact be connected, all LED lamps are luminous, and all No. two LED lamps are luminous, make the handwriting pad send dim and soft light relatively, prevent dazzling in the dark surrounds, and can reduce the energy consumption of power, the energy supply time of extension power.

Drawings

FIG. 1 is a front view of an embodiment;

FIG. 2 is a sectional view of the embodiment;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a back structure display diagram of the embodiment;

fig. 5 is a circuit diagram of a circuit in which the lamp strip is located in the embodiment.

Reference numerals: 1. a handwriting board; 2. a support frame; 3. a light band group; 4. a sleeve; 5. a first LED lamp; 6. a second LED lamp; 7. adjusting a knob; 8. a moving contact; 9. a first fixed contact; 10. a second fixed contact; 11. a protective shell; 12. a threaded fixing rod; 13. a nut; 14. Abutting the pad; 15. a fastening tab; 16. fastening a bolt; 17. energizing the guide post; 18. a sealing plate; 19. A cross bar; 20. a stabilizing rod; 21. a strut; 22. a power source.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1, fig. 2 and fig. 4, an energy-saving LED handwriting fluorescent board with a power supply comprises a handwriting board 1, a light source and a support frame 2. The back of the handwriting board 1 is fixedly provided with a sleeve 4, the support frame 2 comprises a cross rod 19, a stabilizing rod 20 and two support rods 21, the cross rod 19 is positioned in the sleeve 4 and can move in the sleeve 4, the length of the cross rod 19 is greater than that of the sleeve 4, and the two support rods 21 are respectively positioned at two ends of the cross rod 19 and are hinged with the cross rod 19. When the cross bar 19 rotates, the support bars 21 are driven to rotate, and the angle between the two support bars 21 and the writing board 1 is adjusted. After the angle is adjusted, the cross rod 19 is fixed by the fastening mechanism arranged on the sleeve 4, so that the support rod 21 can support the handwriting board 1.

As shown in fig. 2 and 4, the fastening mechanism includes a fastening bolt 16 and a fastening plate 15, the fastening bolt 16 is rotatably connected to an upper end of the fastening plate 15, a threaded hole is formed in the sleeve 4, and the fastening bolt 16 is in threaded connection with the threaded hole. The fastening bolt 16 is rotated to drive the fastening piece 15 to move, so that the fastening piece 15 can be abutted against the upper end face of the cross rod 19, and the lower end of the cross rod 19 is abutted against the inner wall of the sleeve 4, thereby fixing the cross rod 19. The lower extreme of fastening tab 15 is the arc, and is the same with the radian in horizontal pole 19 cross-section, can increase the area of contact between fastening tab 15 and the horizontal pole 19 to what make fastening tab 15 can be better supports horizontal pole 19 tightly.

As shown in fig. 4, in order to make the two support bars 21 better support the writing board 1, the two support bars 21 are hinged to the cross bar 19, and the two support bars 21 can be opened from a parallel state to a splayed state from the beginning, so as to increase the stability of the support bars 21 for supporting the writing board 1. One side that two spinal branch 21 are relative is equipped with a plurality of firm grooves, and the both ends of stabilizing rod 20 can insert two firm inslot respectively, fixes the range of opening of two spinal branch 21, and the firm groove position that stabilizing rod 20 inserted is higher, and the range of opening of two spinal branch 21 is just bigger, is favorable to the support of support frame 2 to handwriting pad 1 more.

As shown in fig. 2 and 3, the light source includes a power source 22 and a plurality of lamp strip sets 3, and the plurality of lamp strip sets 3 are fixed in the mounting groove in the tablet 1. The back of handwriting pad 1 is equipped with the mount, the mount includes a plurality of threaded fixing pole 12, the power 22 outside is equipped with protective housing 11, be equipped with a plurality of jacks on the protective housing 11, pass a plurality of jacks respectively with a plurality of threaded fixing pole 12, later fix protective housing 11 on the mount through nut 13, protective housing 11 is located the lower extreme at the 1 back of handwriting pad, protective housing 11 and power 22's weight can move down 1 holistic focus of handwriting pad, thereby make placing of handwriting pad 1 more stable.

As shown in fig. 3, a power-on groove is formed in the back of the handwriting board 1, two power-on interfaces are arranged in the power-on groove, two power-on guide pillars 17 are arranged on the protective shell 11, one ends of the two power-on guide pillars 17 are communicated with the power supply 22, when the protective shell 11 is fixed on the fixing frame, the two power-on guide pillars 17 are inserted into the two power-on interfaces, the power-on interfaces are connected with a circuit where the lamp strip group 3 is located, and the power supply 22 can supply power to the lamp strip group 3.

As shown in fig. 3 and 4, a supporting pad 14 is disposed on one side of the protection shell 11, and after the protection shell 11 is mounted on the fixing frame, the supporting pad 14 is embedded into the energization groove to prevent external water from entering the energization groove. When the protective shell 11 is not fixed on the fixed frame, the sealing plate 18 hinged on the electrifying groove is rotated, so that the surface of the electrifying groove is sealed by the sealing plate 18, water is prevented from entering, and a circuit where the lamp strip is located is protected.

As shown in fig. 1 and 5, each strip group 3 includes a first LED lamp 5 and a second LED lamp 6, all the first LED lamps 5 are connected in parallel, all the second LED lamps 6 are connected in parallel, and the first LED lamps 5 and the second LED lamps 6 are connected in series.

As shown in fig. 3 and 5, the adjusting knob 7 is disposed on the power source 22, the moving contact 8, the first stationary contact 9, and the second stationary contact 10 are disposed in the adjusting knob 7, the first stationary contact 9 is located between the first LED lamp 5 and the second LED lamp 6, and when the moving contact 8 contacts the first stationary contact 9, the first stationary contact 9 short-circuits the second LED lamp 6. When the movable contact 8 is connected with the second fixed contact 10, the first LED lamp 5 and the second LED lamp 6 are both connected into a circuit.

The working principle is as follows: before using at every turn, fix power 22 and protective housing 11 on the mount earlier, during two circular telegram guide pillars 17 inserted two circular telegram interfaces respectively, make power 22 can be for the energy supply of lamp area group 3.

On the sufficient daytime of illumination, when external visibility is fine, can rotate adjust knob 7, make movable contact 8 and two static contacts all contactless, the circuit at 3 places in the lamp area group is in the state of opening circuit this moment, and lamp area group 3 can not give out light, and the information on the handwriting pad 1 only shows through external illumination. Because the visibility is high, if with the circular telegram of lamp area group 3, its effect is not obvious, consequently with its outage, can save the electric energy, and do not influence the information display on the handwriting pad 1.

When illumination is insufficient or visibility is low due to environmental reasons, the adjusting knob 7 is rotated to connect the movable contact 8 with the second fixed contact 10, all the LED lamps in the lamp strip group 3 emit light, the handwriting board 1 emits maximum brightness, and sharp contrast is formed between the handwriting board 1 and the external dark environment, so that information on the surface of the handwriting board 1 can be well displayed.

If the outside is in a dark environment, such as an area which is only irradiated by a street lamp after late night, the adjusting knob 7 is rotated to connect the movable contact 8 with the first fixed contact 9, at the moment, all the first LED lamps 5 emit light, and the second LED lamps 6 do not emit light, so that the handwriting board 1 emits relatively soft light, the strong contrast with the outside environment is reduced, other people cannot be dazzled when watching the handwriting board, and the information on the handwriting board 1 can be observed conveniently. And only half of the LED lamps need to be supplied with energy, so that the energy consumption is reduced, and the light emitting time of the lamp strip group 3 is prolonged.

The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. an energy-saving LED handwriting fluorescent plate with its own power supply, comprising a handwriting board (1), a light source and a support frame (2), wherein the support frame (2) is located on the back of the handwriting board (1), and is hingedly connected with the tablet (1), the light source comprises a power supply (22) and several light strip groups (3), and several of the light strip groups (3) are electrically connected with the power supply (22), and the tablet (1) There is an installation groove in it, the light strip group (3) is located in the installation groove, the back of the writing board (1) is provided with a fixing frame, and the power supply (22) is located in the fixing frame, and is connected with the fixing frame. The frame is detachably connected, each of the light strip groups (3) includes a No. 1 LED light (5) and a No. 2 LED light (6), the power supply (22) is provided with an adjustment knob (7), the The adjusting knob (7) is provided with a moving contact (8), a first static contact (9) and a second static contact (10), and several of the No. 1 LED lights (5) are connected to the first static contact (9) Electrical connection. Several of the No. 1 LED lights and No. 2 LED lights (6) are electrically connected to the second static contact (10), and the adjustment knob (7) is used to change the moving contact The position of the head (8) so that it is connected with the first stationary contact (9) or the second stationary contact (10).

2 . The energy-saving LED handwriting fluorescent board with its own power supply according to claim 1 , wherein a protective shell ( 11 ) is provided outside the power supply ( 22 ), and the fixing frame comprises a plurality of threaded fixing rods. 3 . (12), the protective shell (11) is provided with a plurality of sockets, a plurality of the threaded fixing rods (12) are respectively inserted into the sockets, and the threaded fixing rods (12) are provided with nuts (13) The nut (13) is screwed on the threaded fixing rod (12), and one side of the nut (13) is abutted against one side of the protective shell (11).

3 . The energy-saving LED handwriting fluorescent board with its own power supply according to claim 2 , wherein a pad ( 14 ) is provided on one side of the protective shell ( 11 ), and the pad ( 14 ). 4 . ) against the back of the tablet (1).

4. The energy-saving LED handwriting fluorescent board with its own power supply according to claim 3, characterized in that, the back of the handwriting board (1) is provided with a power-on slot, and one side of the pad (14) is It is embedded in the energizing slot, and the energizing slot is provided with two energizing interfaces, and the two energizing interfaces are both connected with the circuit where the light strip group (3) is located, and the protective shell (11) is provided with two energizing conductors A column (17), the two conducting columns (17) are respectively inserted and matched with the two conducting ports.

5. The energy-saving LED handwriting fluorescent board with its own power supply according to claim 4, characterized in that, a sealing plate (18) is provided on the energization groove, and the upper end of the sealing plate (18) is connected to the handwriting The back of the board (1) is hingedly connected, and the side of the sealing board (18) away from the hinge is connected with the handwriting board (1) by snap connection.

6 . The energy-saving LED handwriting fluorescent board with its own power supply according to claim 5 , wherein the protective shell ( 11 ) is fixed on the lower end of the back of the handwriting board ( 1 ). 7 .

7. The energy-saving LED handwriting fluorescent board with its own power supply according to claim 1, wherein the support frame (2) comprises a cross bar (19), a stabilizing bar (20) and two struts (21), a sleeve (4) is fixed on the back of the handwriting board (1), the cross bar (19) is located in the sleeve (4), and rotates with the sleeve (4), the sleeve (4) A fastening mechanism is provided on the pipe (4), the two support rods (21) are respectively located at both ends of the cross rod (19), and are hingedly connected with the cross rod (19), and the two support rods (21) A plurality of stabilizing grooves are provided on the opposite side, and two ends of the stabilizing rod (20) are respectively inserted and matched with the stabilizing grooves.

8. The energy-saving LED handwriting fluorescent board with its own power supply according to claim 7, wherein the fastening mechanism comprises a fastening bolt (16) and a fastening sheet (15), and the fastening mechanism comprises a fastening bolt (16) and a fastening sheet (15). The bolt (16) is rotatably connected with the upper end of the fastening piece (15), the sleeve (4) is provided with a threaded hole, the fastening bolt (16) is threadedly connected with the threaded hole, and the fastening piece (15) The lower end of ) is arc-shaped, and the fastening piece (15) is matched with the cross bar (19).

9. The energy-saving LED handwriting fluorescent board with its own power supply according to claim 8, wherein a plurality of the No. 1 LED lamps (5) are connected in parallel with each other, and a plurality of the No. 2 LED lamps (6) are connected in parallel with each other. ) are connected in parallel with each other, and a plurality of the No. 1 LED lamps (5) and a plurality of No. 2 LED lamps (6) are connected in series with each other.