CN220085600U

CN220085600U - Portable LED display screen

Info

Publication number: CN220085600U
Application number: CN202322915847.XU
Authority: CN
Inventors: 梁家菠; 席光义; 刘志刚; 郭文平; 边鹏; 罗会杰; 许凌远; 许春林
Original assignee: Yuanxu Semiconductor Technology Beijing Co ltd; Yuanxu Semiconductor Technology Tianjin Co ltd; Yuanxu Semiconductor Technology Co ltd
Current assignee: Yuanxu Semiconductor Technology Beijing Co ltd; Yuanxu Semiconductor Technology Tianjin Co ltd; Yuanxu Semiconductor Technology Co ltd
Priority date: 2023-10-30
Filing date: 2023-10-30
Publication date: 2023-11-24
Anticipated expiration: 2033-10-30

Abstract

The utility model belongs to the technical field of LED display screens, and provides a portable LED display screen, which comprises a box body, wherein a box cover is hinged on the box body, a supporting and connecting mechanism is arranged between the box cover and the box body, and a display screen is fixedly arranged on the inner side of the box cover; the multimedia player, the sound equipment, the asynchronous card and the power supply unit are arranged in the box body, the multimedia player is connected with the sound equipment and the asynchronous card, the asynchronous card is connected with the display screen, and the power supply unit supplies power for the multimedia player, the sound equipment, the asynchronous card and the display screen. This portable LED display screen, each electronic equipment integrated mounting is on box and case lid, and the integrated level is high and multiple functional, and from the power supply unit that supplies, need not the wiring, opens promptly, does not receive electric wire netting control, box structure, portable removes, opens the case lid and can use, carries and convenient to use is swift, and the practicality is strong.

Description

Portable LED display screen

Technical Field

The utility model relates to the technical field of LED display screens, in particular to a portable LED display screen.

Background

The LED display screen is a novel imaging electronic device which is made of light emitting diodes arranged in sequence and is used for displaying various information such as characters, images, videos, video signals and the like; because of the characteristics of high brightness, wide visual angle, long service life and the like, the display device is widely applied to information propagation markets such as commercial display, cultural performance, advertising media, stadiums, command centers, studios and the like, and can meet different environmental requirements. Through the display screen with the modern structure, various information can be effectively transmitted to meet the demands of work, study, entertainment and life of people.

At present, most LED display screens on the market are fixedly arranged on a wall body or a frame body, so that the LED display screens are inconvenient to move, heavy and not easy to carry at any time according to needs, cannot realize mobile display, can be moved after being dismounted and then are installed and used, and are complex in dismounting operation, time-consuming and labor-consuming to move and carry; in addition, most of the power supply depends on a national power grid, and a special socket is needed for supplying power, so that the power supply cannot be used in some countries and areas with frequent power failure and in emergency disaster prevention or business visit activities, and brings a plurality of inconveniences to users in use.

Disclosure of Invention

The present inventors have conducted intensive studies to overcome the above-mentioned drawbacks of the prior art, and have completed the present utility model after a great deal of creative effort.

Specifically, the technical problems to be solved by the utility model are as follows: the portable LED display screen is provided to solve the technical problem that the conventional LED display screen is inconvenient to carry.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the portable LED display screen comprises a box body, wherein a box cover is hinged on the box body, a supporting and connecting mechanism is arranged between the box cover and the box body, and a display screen is fixedly arranged on the inner side of the box cover;

the multimedia player is connected with the sound equipment, the asynchronous card is connected with the display screen, and the power supply unit supplies power for the multimedia player, the sound equipment, the asynchronous card and the display screen.

As an improved technical scheme, the top of the box body is provided with a pull rod, the pull rod is movably inserted into the box body, and the bottom of the box body and/or the box cover is provided with universal casters.

As an improved technical scheme, the support connecting mechanism is provided with two sets, and the two sets are respectively arranged at the two ends of the box body and the box cover;

the supporting and connecting mechanism comprises a curved hand support, and two ends of the curved hand support are respectively connected with the box body and the box cover.

As an improved technical scheme, the multimedia player is connected with the asynchronous card by using an HDMI wire, and the asynchronous card is connected with the display screen by using a network cable;

the audio equipment comprises a power amplification board and a loudspeaker, wherein the power amplification board is connected with the multimedia player by utilizing an audio line, and the loudspeaker is connected with the power amplification board.

As an improved technical scheme, the power supply unit comprises a power supply and a battery management system, wherein the power supply is a lithium battery pack, the battery management system comprises a synchronous voltage reduction circuit and an MCU chip, and the power supply supplies power for the multimedia player, the power amplification board, the asynchronous card and the display screen through the synchronous voltage reduction circuit.

As an improved technical scheme, a power switch and a display panel are arranged on one side of the box body, and the power switch and the display panel are connected with the battery management system.

As an improved technical scheme, a charger is further arranged in the box body, a charging interface matched with the charger is arranged on one side of the box body, and the charging interface is connected with the power supply.

As an improved technical scheme, the box body is internally provided with a protective cover plate and antistatic EVA cotton, the protective cover plate and the antistatic EVA cotton are sequentially covered on the box body and are close to the box cover, and the antistatic EVA cotton is located above the protective cover plate.

As an improved technical scheme, a first sound outlet hole which is arranged corresponding to the loudspeaker is formed in the protective cover plate, and a second sound outlet hole which is arranged corresponding to the loudspeaker is formed in the antistatic EVA cotton;

and/or the protective cover plate is provided with a taking and placing port corresponding to the charger;

and/or, offer first breach of dodging on the protective cover board, offer on the antistatic EVA cotton with first second of dodging the breach that sets up that corresponds the breach.

As an improved technical scheme, the case cover and the opening and closing side of the case body are provided with buckles, and when the case cover is in a covering state, the case cover is in locking connection with the case body by using the buckles.

After the technical scheme is adopted, the utility model has the beneficial effects that:

this portable LED display screen, each electronic equipment integrated mounting is on box and case lid, and the integrated level is high and multiple functional, and from the power supply unit that supplies, need not the wiring, opens promptly, does not receive electric wire netting control, box structure, portable removes, opens the case lid and can use, carries and convenient to use is swift, and the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of a portable LED display screen in an open state;

FIG. 2 is a schematic structural view of a portable LED display screen protective cover plate and antistatic EVA cotton in an uninstalled state;

FIG. 3 is a schematic structural diagram of a portable LED display screen in a locked state according to the present utility model;

FIG. 4 is a schematic diagram of a cross-sectional structure of a case of the portable LED display screen of the present utility model;

FIG. 5 is a schematic view of the structure of the protective cover plate of the present utility model;

FIG. 6 is a schematic structural view of the antistatic EVA cotton of the present utility model;

reference numerals: 1-a box body; 2-a case cover; 3-a crank bracket; 4-a display screen; 5-a pull rod; 6-universal casters; 7-hasp; 8-a multimedia player; 9-asynchronous card; 10-a power amplification board; 11-horn; 12-power supply; 13-a battery management system; 14-a power switch; 15-a display panel; 16-a charger; 17-a charging interface; 18-a protective cover plate; 1801-a first sound outlet; 1802-first avoidance gap; 19-antistatic EVA cotton; 1901-a second sound outlet; 1902-a second avoidance gap.

Detailed Description

The utility model will be further illustrated with reference to specific examples. The purpose and purpose of these exemplary embodiments are merely to illustrate the present utility model and are not intended to limit the true scope of the present utility model in any way.

As shown in fig. 1 to 6 together, the embodiment provides a portable LED display screen, which comprises a box body 1, wherein a box cover 2 is hinged on the box body 1, a supporting and connecting mechanism is arranged between the box cover 2 and the box body 1, and a display screen 4 is fixedly arranged on the inner side of the box cover 2; the multimedia player 8, the sound equipment, the asynchronous card 9 and the power supply unit are arranged in the box body 1, the multimedia player 8 is connected with the sound equipment and the asynchronous card 9, the asynchronous card 9 is connected with the display screen 4, and the power supply unit supplies power for the multimedia player 8, the sound equipment, the asynchronous card 9 and the display screen 4.

The case cover 2 is hinged with one side of the case body 1 by a hinge, so that the case cover 2 is conveniently opened and buckled while the case cover 2 is connected with the case body 1.

The support connecting mechanism is provided with two sets and is respectively arranged at two end parts of the box body 1 and the box cover 2; in this embodiment, the support connection mechanism includes a crank bracket 3, and two ends of the crank bracket 3 are respectively connected with the case body 1 and the case cover 2. Through supporting coupling mechanism, ensure that case lid 2 can keep certain inclination with box 1 after opening, be convenient for watch display screen 4.

In order to be carried and moved more conveniently, the top of the box body 1 is provided with a pull rod 5, the pull rod 5 is movably inserted into the box body 1, and the bottoms of the box body 1 and/or the box cover 2 are provided with universal casters 6. Of course, a carrying handle may be provided on the top of the case 1.

In this embodiment, four casters 6 are provided, two of which are fixedly mounted on the bottom of the case 1, and the other two of which are fixedly mounted on the bottom of the case cover 2.

In this embodiment, the case cover 2 and the case 1 are provided with a buckle 7 on the opening and closing side, and when the case cover 2 is in the closed state, the case cover 1 is locked and connected to the case 1 by the buckle 7. The hasp 7 is used for opening/locking the case lid 2, and the case lid 2 is convenient for operate and use when opening, and after the hasp 7 is used to lock with the box 1, portable removes, avoids case lid 2 to open by oneself in removal or vibrations in-process.

The draw bar box type structure provided with the draw bar 5 and the universal casters 6 is characterized in that the box shell can protect all electronic equipment inside, when the travel is carried, the load of a person can be greatly lightened, the carrying and the movement are convenient and labor-saving, and the person can easily and freely carry the draw bar box type structure.

The multimedia player 8 is connected with the asynchronous card 9 by using an HDMI wire, and is used for transmitting the data information of the multimedia player 8 to the asynchronous card 9, and the asynchronous card 9 is connected with the display screen 4 by using a network wire, so as to form a display control system, and is used for transmitting the received data information to the display screen 4, so that various information needing to be displayed can be displayed.

In this embodiment, the display screen 4 is an LED display screen, the display screen 4 has a pitch of P0.9, and the resolution is 640 x 360, so that ultra-high definition display can be realized, and the primary colors of video can be truly restored. Of course, the display screen 4 is not limited to the above-mentioned dot spacing and resolution, so as to display the content that the user needs to display, and satisfy different requirements of the user for display.

In this embodiment, the multimedia player 8 may interact with external mobile phones, PCs or tablet terminals through WIFI, so as to implement information transmission.

The audio equipment comprises a power amplification board 10 and a loudspeaker 11, wherein the power amplification board 10 is connected with the multimedia player 8 by utilizing an audio line, and the loudspeaker 11 is connected with the power amplification board 10 and is used for realizing audio playing.

The power supply unit comprises a power supply 12 and a battery management system 13, wherein the power supply 12 is a lithium battery pack, the lithium battery pack is formed by serially and parallelly connecting a plurality of 18650A-level battery cores, the battery management system 13 comprises a synchronous voltage reduction circuit and an MCU chip, and the power supply 12 supplies power to the multimedia player 8, the power amplification board 10, the asynchronous card 9 and the display screen 4 through the synchronous voltage reduction circuit so as to be separated from a power grid for use. The battery management system 13 is abbreviated as BMS, and can intelligently manage and maintain each battery unit, prevent the battery from overcharge and overdischarge, prolong the service life of the battery, and monitor the state of the battery.

In this embodiment, the ternary lithium battery 13P2P is selected and used, and the total capacity is 6Ah, the rated voltage is 48V, and the total energy is 288Wh, which is composed of 26 sections of 18650 battery cells, and can provide a duration of 10h for the display screen 4, so as to meet the use requirement.

The voltage of the lithium battery pack is converted into 12V, 5V and 3.8V through the synchronous voltage reduction circuit, the 12V voltage is used for supplying power to the power amplification board 10 and the asynchronous card 9, the 5V voltage is used for supplying power to the multimedia player 8, and the 3.8V voltage is used for supplying power to the display screen 4, so that the power supply to each electronic device is realized; the MCU chip has the functions of current detection, temperature detection and the like, and realizes intelligent control of the power supply 12.

One side of the box body 1 is provided with a power switch 14 and a display panel 15, and the power switch 14 and the display panel 15 are connected with the battery management system 13.

In this embodiment, the power switch 14 is a power on/off button, and is composed of a metal button switch self-reset button with a lamp, and is used for detecting a button signal, realizing a power on/off function, and turning on/off after long pressing for 3 s.

In this embodiment, the display panel 15 is an LCD liquid crystal display panel, and is configured to display power, electric quantity, temperature, etc. when the display screen 4 is in a working state, and provide a visual window, so as to facilitate real-time understanding of the working state of the display screen 4.

In this embodiment, a Z-shaped pressing plate is fixedly installed in the case 1, the multimedia player 8 is fixedly installed in the case 1 by using the Z-shaped pressing plate, and the asynchronous card 9, the power amplification plate 10, the loudspeaker 11 and the battery management system 13 are fixedly installed in the case 1 by using screws, so that the maintenance and the replacement of each electronic device are facilitated.

A charger 16 is also arranged in the box body 1, a charging interface 17 matched with the charger 16 is arranged on one side of the box body 1, and the charging interface 17 is connected with the power supply 12; the charger 16 is used for charging the lithium battery pack in the box body 1, when the lithium battery pack needs to be charged, the charger 16 is taken out, one end of the charger 16 is connected with the charging interface 17, and the other end of the charger 16 is connected with 100V-220V alternating current, so that the lithium battery pack can be charged; meanwhile, the charger 16 can supply power to the display screen 4 and the whole equipment while charging. After the charging is completed, the charger 16 is put into the box 1 again.

Still be equipped with protective cover plate 18 and antistatic EVA cotton 19 in the box 1, protective cover plate 18 and antistatic EVA cotton 19 cover in proper order on box 1, and be close to case lid 2 setting, antistatic EVA cotton 19 is located protective cover plate 18's top.

In this embodiment, the protective cover 18 is an acrylic plate with a brown color, and of course, the acrylic plate may be selected. The protective cover plate 18 covers the upper part of each electronic device in the box body 1, so that the protection of each electronic device in the box body 1 is realized, and the protective cover plate 18 is more attractive after being covered.

The anti-static EVA cotton 19 covers the upper side of the protective cover plate 18, after the cover 2 is buckled, the anti-static EVA cotton 19 is in close contact with the display surface of the display screen 4, so that the display screen 4 is protected, and the influence on the display screen 4 due to vibration and other factors in pulling and walking is avoided.

In an embodiment, the protective cover 18 is provided with a first sound outlet 1801 corresponding to the horn 11, and the antistatic EVA cotton 19 is provided with a second sound outlet 1901 corresponding to the horn 11; the sound outlet hole that is equipped with avoids the influence to the sound effect of sound equipment, can bring the experience that the sound field was shock for the user when guaranteeing to use.

In an embodiment, the protective cover 18 has a pick-and-place opening corresponding to the charger 16, so as to facilitate pick-and-place of the charger 16.

In an embodiment, a first avoidance gap 1802 is formed on the protective cover plate 18, and a second avoidance gap 1902 corresponding to the first avoidance gap 1802 is formed on the antistatic EVA cotton 19. The first gap 1802 of dodging and the second gap 1902 of dodging all have offered two, and wherein a pair of first gap 1802 of dodging and the second gap 1902 of dodging that correspond from top to bottom are used for realizing dodging of net twine, and another pair of first gap 1802 of dodging and the second gap 1902 of dodging that correspond from top to bottom are used for realizing dodging of power cord, through dodging the gap, for the wiring of net twine and power cord has provided convenience, and the outward appearance is pleasing to the eye.

In this embodiment, the protective cover plate 18 and the antistatic EVA cotton 19 are further provided with a notch structure at the corresponding position of the curved hand support 3 for avoiding the curved hand support 3.

Based on this portable LED display screen of above-mentioned structure, each electronic equipment integrated mounting is on box 1 and case lid 2, and the integrated level is high and multiple functional, and from the power supply unit that supplies, need not the wiring, and the instant-use is not controlled by the electric wire netting, box structure, portable removes, opens case lid 2 and can use, carries and convenient to use is swift, and the practicality is strong.

It should be understood that these examples are for the purpose of illustrating the utility model only and are not intended to limit the scope of the utility model. Furthermore, it is to be understood that various changes, modifications and/or variations may be made by those skilled in the art after reading the technical content of the present utility model, and that all such equivalents are intended to fall within the scope of the present utility model as defined in the appended claims.

Claims

1. The utility model provides a portable LED display screen which characterized in that: the box comprises a box body, wherein a box cover is hinged on the box body, a supporting and connecting mechanism is arranged between the box cover and the box body, and a display screen is fixedly arranged on the inner side of the box cover;

2. The portable LED display screen of claim 1, wherein: the top of the box body is provided with a pull rod, the pull rod is movably inserted into the box body, and the bottom of the box body and/or the box cover is provided with universal casters.

3. The portable LED display screen of claim 2, wherein: the support connecting mechanisms are provided with two sets and are respectively arranged at two end parts of the box body and the box cover;

4. The portable LED display screen of claim 1, wherein: the multimedia player is connected with the asynchronous card by using an HDMI wire, and the asynchronous card is connected with the display screen by using a network wire;

5. The portable LED display screen of claim 4, wherein: the power supply unit comprises a power supply and a battery management system, wherein the power supply is a lithium battery pack, the battery management system comprises a synchronous voltage reduction circuit and an MCU chip, and the power supply supplies power for the multimedia player, the power amplification board, the asynchronous card and the display screen through the synchronous voltage reduction circuit.

6. The portable LED display screen of claim 5, wherein: and one side of the box body is provided with a power switch and a display panel, and the power switch and the display panel are connected with the battery management system.

7. The portable LED display screen of claim 6, wherein: the battery charger is characterized in that a charger is further arranged in the box body, a charging interface matched with the charger is arranged on one side of the box body, and the charging interface is connected with the power supply.

8. The portable LED display screen of claim 7, wherein: still be equipped with protective cover plate and antistatic EVA cotton in the box, protective cover plate with antistatic EVA cotton in proper order cover in on the box, and be close to the case lid sets up, antistatic EVA cotton is located protective cover plate's top.

9. The portable LED display screen of claim 8, wherein: the protective cover plate is provided with a first sound outlet hole which is arranged corresponding to the loudspeaker, and the antistatic EVA cotton is provided with a second sound outlet hole which is arranged corresponding to the loudspeaker;

10. The portable LED display screen of any of claims 1-9, wherein: the case cover and the opening and closing sides of the case body are provided with buckles, and when the case cover is in a covering state, the case cover is in locking connection with the case body by using the buckles.