CN210156044U

CN210156044U - Servo dot matrix screen controlled by single magnet

Info

Publication number: CN210156044U
Application number: CN201921329241.5U
Authority: CN
Inventors: 吴宽
Original assignee: Manu (shanghai) Art Design Co Ltd
Current assignee: Manu (shanghai) Art Design Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-03-17
Anticipated expiration: 2029-08-16

Abstract

The utility model provides a servo dot matrix screen of single magnet control relates to dot matrix screen field, including the single node module of a plurality of array settings, the single node module includes the bottom plate, sets up in the module shell of bottom plate top, sets up in inside PCB control panel, module inner shell, upset piece, electro-magnet, the axle magnet of taking LED lamp pearl of module shell, the PCB control panel is fixed to be set up on the bottom plate, the module inner shell is fixed to be set up on the PCB control panel, the electro-magnet is fixed to be set up in one side of module inner shell, the activity of upset piece sets up on the module inner shell, the axle magnet is fixed to be set up in one side that corresponds the electro-magnet on the upset piece, the upper surface and the lower surface of upset. The utility model discloses a dot matrix screen has realized the formation of image of upset black and white double-colored upset piece to the upset formation of image is that the magnetic force through PCB control panel control electro-magnet pushes away the formation of image of upset piece developments.

Description

Servo dot matrix screen controlled by single magnet

Technical Field

The utility model relates to a dot matrix screen field especially relates to a servo dot matrix screen of single magnet control.

Background

The dot matrix screen is composed of LED lamp beads (light emitting diodes), and characters, pictures, animations, videos and the like are displayed by controlling the on and off of the LED lamp beads, so that the dot matrix screen is a modular display device.

Most of the conventional dot matrix screens are flat and rectangular structures, as shown in fig. 1. For an indoor dot matrix screen, a commonly adopted control method is a scanning mode; the scanning mode is divided into a static scanning mode and a dynamic scanning mode, the static scanning mode is divided into static real image scanning and static virtual scanning, and the dynamic scanning mode is divided into dynamic real image scanning and dynamic virtual scanning. The control principle of the scanning mode is as shown in fig. 2, the row driver and the column driver are controlled by the single chip microcomputer to respectively drive the dot matrix screen, the LED lamp beads of the dot matrix screen generally adopt a common cathode or a common anode, and when a positive strobe signal is arranged on a row, the LED lamp beads with the four bits of data on the column being 0 are conducted and lightened. Therefore, the dot matrix screen can be lighted up row by row for imaging by scanning the display code of the graphics or the characters as column signals and corresponding row signals one by one, and the hardware circuit of the dot matrix screen is as shown in fig. 3.

Therefore, the existing dot matrix screen has the following defects:

1. the dot matrix screen display form is comparatively single, can only realize the formation of image through controlling LED lamp pearl bright and go out, the colour changes.

2. The lattice screen can only be used for static photochromic imaging and can not be used for dynamic imaging.

3. The dot matrix screen can only receive signals passively in one direction and play according to set imaging.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a servo dot matrix screen of single magnet control realizes the formation of image of upset black and white double-colored upset piece to the upset formation of image is that the magnetic force through PCB control panel control electro-magnet pushes away the formation of image of upset piece developments.

For realizing above-mentioned purpose and other relevant mesh, the utility model provides a servo dot matrix screen of single magnet control, the single node module that sets up including a plurality of arrays, the single node module includes the bottom plate, sets up in the module shell of bottom plate top, sets up in the inside PCB control panel, module inner shell, upset piece, electro-magnet, the axle magnet of taking LED lamp pearl of module shell, the PCB control panel is fixed to be set up on the bottom plate, the module inner shell is fixed to be set up on the PCB control panel, the electro-magnet is fixed to be set up in one side of module inner shell, the activity of upset piece sets up on the module inner shell, the axle magnet is fixed to be set up in one side that corresponds the electro-magnet on the upset piece, the upper surface and the.

The magnitude and the direction of current flowing through the electromagnet are controlled by the PCB control board, so that the magnitude and the polarity of the magnetic force of the electromagnet are controlled; according to the principle that like poles repel and opposite poles attract magnetic force, the shaft magnet is pushed to realize overturning action, so that the overturning sheet is driven to overturn; because the upper surface and the lower surface of upset piece set up to different colours, when the single node module that a plurality of arrays were arranged realized different upset states through the PCB control panel respectively, the dot matrix screen will present the dot matrix pixel formation of different upset states, different colours.

Furthermore, the two sides of the module inner shell are respectively provided with a bearing mounting seat, a bearing is fixedly arranged in the bearing mounting seats, the two sides of the turnover piece are respectively provided with a rotating shaft, and the turnover piece is movably arranged on the module inner shell through the matching of the rotating shaft and the bearing.

Furthermore, the electromagnet is fixedly arranged on the PCB control board through screws, and the electromagnet is electrically connected with the PCB control board.

Further, a light-transmitting cover is arranged inside the module inner shell.

Furthermore, a thin gasket is arranged between the shaft magnet and the bearing, and a thick gasket is arranged on the inner side of the bearing on the other side. The shaft magnet and the bearing can be isolated by arranging the gasket, so that the interaction force is reduced.

Furthermore, a waterproof cable connector is arranged on the bottom plate and electrically connected with the PCB control panel.

As above, the utility model discloses a servo dot matrix screen of single magnet control has following beneficial effect:

1. the utility model discloses can provide the dot matrix screen of one kind or multiple formation of image mode, can realize the upset formation of image, show the more lively image that changes.

2. The utility model discloses an image of dot matrix screen show makes impression more than ordinary dot matrix screen, consequently has better bandwagon effect and advertising effect.

Drawings

Fig. 1 shows a schematic plane structure of a dot matrix screen disclosed in the prior art.

Fig. 2 shows a schematic diagram of the control of the scanning mode of a dot matrix screen disclosed in the prior art.

Fig. 3 shows a circuit diagram of a dot matrix screen hardware disclosed in the prior art.

Fig. 4 is a schematic view of a dot matrix screen structure disclosed in an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a single-node module without a module housing according to an embodiment of the present invention.

Fig. 6 shows an exploded view of a single node module disclosed in an embodiment of the present invention.

Fig. 7 is a schematic view of an electromagnet according to an embodiment of the present invention.

Fig. 8 is a circuit diagram of a PCB control board disclosed in an embodiment of the present invention.

Fig. 9 is a schematic diagram illustrating the operation of the electromagnet disclosed in the embodiment of the present invention.

The labels in the figure are: 1-single node module, 2-bottom board, 3-PCB control board, 4-electromagnet, 5-module inner shell, 6-flip piece, 7-axis magnet, 8-module outer shell, 201-waterproof cable joint, 301-screw, 302-LED lamp bead, 401-plastic bracket, 402-U-shaped silicon steel body, 403-coil, 404-copper core bolt, 501-bearing mounting seat, 502-light-transmitting cover, 503-bearing, 601-rotating shaft, 602-thin gasket, 603-thick gasket.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 4 to 9, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the disclosure of the specification, so as to be known and read by those skilled in the art, and are not used for limiting the practical limitations of the present invention, so they do not have the essential meaning in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

As shown in fig. 4-6, the utility model provides a servo dot matrix screen of single magnet control, single node module 1 including a plurality of array settings, single node module 1 includes bottom plate 2, sets up in the module shell 8 of bottom plate 2 top, sets up in the inside PCB control panel 3 of taking LED lamp pearl 302 of module shell, module inner shell 5, upset piece 6, electro-magnet 4, axle magnet 7, PCB control panel 3 is fixed to be set up on bottom plate 2, module inner shell 5 is fixed to be set up on PCB control panel 3, electro-magnet 4 is fixed to be set up in one side of module inner shell 5, the activity of upset piece 6 sets up on module inner shell 5, axle magnet 7 is fixed to be set up in one side that corresponds electro-magnet 4 on upset piece 6, the upper surface and the lower surface of upset piece 6 set up to different colours.

The magnitude and the direction of the current flowing through the electromagnet 4 are controlled by the PCB control board 3, so that the magnitude and the polarity of the magnetic force of the electromagnet 4 are controlled; according to the principle that like poles repel and opposite poles attract, the shaft magnet 7 is pushed to realize overturning action, so that the overturning sheet 6 is driven to overturn; because the upper surface and the lower surface of the turning sheet 6 are set to be different colors, when the single-node modules 1 arranged in a plurality of arrays realize different turning states through the PCB control panel 3, the dot matrix screen can present dot matrix pixel imaging of different turning states and different colors.

In order to realize that the turning sheet 6 can be turned over on the module inner shell 5, two sides of the module inner shell 5 are respectively provided with a bearing mounting seat 501, a bearing 503 is fixedly arranged in the bearing mounting seat 501, two sides of the turning sheet 6 are respectively provided with a rotating shaft 601, and the turning sheet 6 is movably arranged on the module inner shell 5 through the matching use of the rotating shaft 601 and the bearing 503.

The electromagnet 4 is fixedly arranged on the PCB control board 3 through a screw 301, and the electromagnet 4 is electrically connected with the PCB control board 3.

In order to enable the light of the LED lamp bead 302 to pass through the module inner housing 5, a light-transmitting cover 502 is disposed inside the module inner housing 5.

In order to separate the shaft magnet 7 from the bearing 503 and reduce the mutual force, a thin spacer 602 is provided between the shaft magnet 7 and the bearing 503, and a thick spacer 603 is provided inside the bearing 503 on the other side.

The bottom plate 2 is provided with a waterproof cable connector 201, and the waterproof cable connector 201 is electrically connected with the PCB control board 3. Namely, the power supply is connected through the waterproof cable connector 201 to supply power for the PCB control board 3.

Specifically, as shown in fig. 7, the electromagnet 4 includes a plastic support 401, a U-shaped silicon steel body 402 embedded in the plastic support 401, two copper core bolts 404 embedded in the plastic support 401, and a coil 403 wound around the bottom of the U-shaped silicon steel body 402, wherein the ends of the coil 403 are respectively fixedly connected to the two copper core bolts 404. The current size and the current direction of two ends of a thread output to 404 are controlled through the PCB control board 3, the accurate control of the magnetic force size and the magnetic force polarity of the electromagnet 4 is realized, and then the shaft magnet 7 is pushed to realize the overturning action.

Specifically, as shown in fig. 8, a single chip microcomputer control module and a power amplifier module are arranged on the PCB control board 3, the single chip microcomputer control module includes a single chip microcomputer IU1 and a peripheral circuit thereof, the power amplifier module includes a power amplifier chip IU2 and a peripheral circuit thereof, the single chip microcomputer IU1 burns a control program to the single chip microcomputer IU1 through a program burning interface IJ1, and the single chip microcomputer IU1 outputs 2 PWM pulse signals with polarities to the 2 nd pin and the 3 rd pin of the power amplifier chip IU2 from the 32 th pin and the 30 th pin, respectively; the power amplifier IU2 amplifies the PWM pulse signal, and outputs positive and negative voltages to the two ends of the coil 403 of the electromagnet 4 through the interface U1, so that the currents flow through the coil 403 of the electromagnet 4, respectively, and the shaft magnet 7 is pushed to turn over according to the principle that like poles repel each other and opposite poles attract each other.

The 26 th pin, the 25 th pin, the 27 th pin, the 28 th pin and the 29 th pin of the single chip IU1 are further connected with the interface IJ2 respectively, and are connected with the interface IJ3 through the interface IJ2 and the interface IJ3, and the output control of the multiple single chip IU1 of the dot matrix screen is realized through the CPLD, that is, the unified control of different turning states of the multiple single node modules 1 is realized, and the dot matrix screen can present dot matrix pixel imaging in different turning states and different colors.

The polarity and the magnitude of 2 PWM pulse signals are controlled through a single chip IU1, the magnitude and the direction of current output to a coil 403 of an electromagnet 4 can be controlled, the model of the single chip IU1 is STC8A8K64S4A12, and the model of the power amplification chip IU2 is MXAIP 6150.

As shown in fig. 9, the working principle of the present invention is as follows:

the D-shaped hole of the shaft magnet 7 is sleeved on the rotating shaft 601 of the

turnover piece

6, 2 PWM pulse signals are output through a single chip IU1 of the PCB control board 3, and the polarity of the electromagnet 4 is changed. When the electromagnet 4 changes polarity, the magnetic force of the U-shaped silicon steel body 402 on the electromagnet 4 will push the shaft magnet 7 to turn 180 degrees due to the principle that like poles repel and opposite poles attract, so the coaxial turning piece 6 will also be driven to turn 180 degrees.

Because the upper surface and the lower surface of the turnover sheet 6 are set to be different colors (white and black respectively), when the single-node modules 1 arranged in a plurality of arrays realize different turnover states through the PCB control board 3, the dot matrix screen can present dot matrix pixel imaging of different turnover states and different colors.

To sum up, the utility model discloses can realize the 6 formation of image of upset black and white double-colored upset pieces to the upset formation of image is that the magnetic force through 3 control electro-magnets 4 of PCB control panel pushes away the 6 dynamic imaging of upset pieces. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a servo dot matrix screen of single magnet control, includes single node module (1) that a plurality of arrays set up, its characterized in that: single node module (1) includes bottom plate (2), sets up in module shell (8) of bottom plate (2) top, sets up in PCB control panel (3), module inner shell (5), upset piece (6), electro-magnet (4), axle magnet (7) of inside LED lamp pearl (302) of taking of module shell (8), PCB control panel (3) is fixed to be set up on bottom plate (2), module inner shell (5) are fixed to be set up on PCB control panel (3), electro-magnet (4) are fixed to be set up in one side of module inner shell (5), upset piece (6) activity sets up on module inner shell (5), axle magnet (7) are fixed to be set up in one side that corresponds electro-magnet (4) on upset piece (6), the upper surface and the lower surface of upset piece (6) set up to different colours.

2. The single magnet controlled servo dot matrix screen of claim 1, wherein: the module is characterized in that bearing installation seats (501) are respectively arranged on two sides of the module inner shell (5), bearings (503) are fixedly arranged in the bearing installation seats (501), rotating shafts (601) are respectively arranged on two sides of the turnover sheet (6), and the turnover sheet (6) is movably arranged on the module inner shell (5) through the cooperation of the rotating shafts (601) and the bearings (503).

3. The single magnet controlled servo dot matrix screen of claim 1, wherein: the electromagnet (4) is fixedly arranged on the PCB control board (3) through a screw (301), and the electromagnet (4) is electrically connected with the PCB control board (3).

4. The single magnet controlled servo dot matrix screen of claim 1, wherein: a light-transmitting cover (502) is arranged inside the module inner shell (5).

5. The single magnet controlled servo dot matrix screen of claim 1, wherein: a thin gasket (602) is arranged between the shaft magnet (7) and the bearing (503), and a thick gasket (603) is arranged on the inner side of the bearing (503) on the other side.

6. The single magnet controlled servo dot matrix screen of claim 1, wherein: the PCB is characterized in that a waterproof cable connector (201) is arranged on the bottom plate (2), and the waterproof cable connector (201) is electrically connected with the PCB control panel (3).