A display and live broadcast large screen without external power supply

Abstract

The present invention mainly solves the problem that the display and the large screen for live broadcast cannot be used without power supply. Traditional display and large screen for live broadcast must be equipped with 220V power supply before they can be used. Its main technical features include: a built-in rechargeable independent power supply system, even if there is no 220V power supply, the display can still be used normally. The system adopts high-performance battery cells and has stable charging and discharging performance. It has a built-in temperature and voltage control loop, which can intelligently adjust the charging current to ensure safety and stability. It has a built-in 14-bit ADC and current sampling circuit, which can accurately measure voltage and current, and accurately obtain battery power information through a built-in power calculation method, and accurately display the current power. The built-in circuit can not only power the display, but also has the function of charging portable electronic devices. The present invention has broad application prospects in the fields of outdoor live broadcast and so on, which will help promote the live broadcast industry to develop towards intelligence and energy saving, reduce energy consumption and reduce the cost of use.

Description

1. Technical Field

[0001] The present invention relates to the technical field of displays and large-screen live broadcast equipment, and in particular to outdoor live broadcast and outdoor scene use. 2. Background Technology

[0002] Traditional monitors and live broadcast screens must be powered by a 220V power supply. If used in outdoor scenes, you must purchase a 220V mobile power supply. The mobile power supply is not only large in size and weight, but also increases the cost of use. Ordinary mobile power supplies are at least around one thousand yuan, with small capacity and poor safety. Branded mobile power supplies can easily cost three to five thousand yuan, and are inconvenient to carry when traveling. III. Summary of the invention

[0003] 1. Purpose of the invention: The present invention aims to provide a solution for display and live broadcast screen to be used outdoors without external power supply, which can be used anytime and anywhere, and can charge portable electronic devices, thus reducing the cost of use, being more convenient and more environmentally friendly;

[0004] 2. Technical solution:

[0005] The system is mainly composed of display screen, mainboard chip, battery pack, power controller and intelligent boost circuit;

[0006] The monitor has two power supply schemes: external power supply and internal power supply. The two do not interfere with each other. When using the external power supply, you can turn it on normally. When using the internal power supply, press the internal power switch to turn it on.

[0007] When using the built-in power supply, the display module will instantly display the remaining power. When the display is zero, it means the power is exhausted. The TYPE-C port supports charging and discharging, supports 22.5W fast charging, and the USB port can charge the mobile phone, supporting multiple protocols for fast charging;

[0008] 3. Beneficial effects: Compared with traditional displays and live broadcast screens, the present invention can flexibly select power supply solutions according to actual needs, effectively save usage costs, and bring more convenience to multi-scene use. At the same time, the extended charging function of the external power supply provides more convenient daily use for portable electronic products. IV. Description of the drawings

[0009] Figure 1 The circuit structure block diagram of the present invention is

[0010] Figure 2 The overall structure diagram of the back of the present invention is

[0011] Figure 3 The front overall structure diagram of the present invention is

[0012] Figure 4 This is a schematic diagram of the horizontal back structure of the desktop of the present invention

[0013] Figure 5 This is a schematic diagram of the horizontal front structure of the desktop of the present invention

[0014] In the figure: 1 display frame; 2 built-in power switch; 3 display control switch; 4 type-c charging port; 5 USB charging port; 6 power display; 7 upper heat dissipation hole; 8 lower heat dissipation hole; 9 bracket fixing piece; 10 floor stand V. Specific implementation methods

[0015] When you go outdoors to start live streaming, install the fully charged monitor or live streaming screen, connect the lines of each device, press the built-in power switch on the back cover of the monitor or live streaming screen, and light up the screen debugging screen. The specific usage time depends on the capacity of the built-in battery. If the mobile phone needs to be charged during use, you can also connect it to the charging port on the back to charge the mobile phone. Pay attention to the remaining power during use.

Claims

1. A display and live broadcast screen that does not require an external power supply, characterized in that: include: The display body has two power supply schemes. The display body can be powered by a power adapter connected to a 220V power supply, or by a built-in power supply system. When the external power supply is disconnected, the built-in power supply system can be used for independent power supply. There is an independent switch key for the built-in power supply on the back of the shell, and an indicator light. Press the switch to turn on the display. The built-in power supply supports charging and discharging. Power controller: Set inside the back cover of the display and live broadcast screen, the controller can detect the internal power supply in real time, with an external LED digital display that can accurately display the remaining power, and an external TYPE-C charging and discharging port and USB port, both of which can charge other electronic devices; Battery pack: located inside the back cover of the display and live broadcast screen, it provides power for the display and portable electronic devices. The battery pack has a capacity of 25000mAh-40000mAh, which can provide continuous power for the display for about 4-6 hours. It also has a fast charging function, which is safe and efficient. Boost circuit: Located inside the back cover of the display and live broadcast screen, it adopts the latest intelligent boost chip core technology, integrating multiple protection functions such as over-current, over-voltage, short-circuit protection and temperature monitoring, which can ensure safe and reliable charging, low energy consumption, less heat, and extend the service life of the equipment; Wireless screen projection system: integrated on the motherboard inside the display and live broadcast screen, it adopts advanced wireless transmission technology, 2.4G / 5G dual-frequency transmission, effectively reduces signal interference, stably transmits audio and video signals, with smooth pictures and clear sounds, and supports multiple operating systems and devices.

2. According to claim 1, the display and live broadcast screen that do not require an external power supply, wherein the power controller includes a built-in temperature and voltage control loop, which can intelligently adjust the charging current to ensure safety and stability, and has a built-in 14-bit ADC and current sampling circuit, which can accurately measure voltage and current, and accurately obtain battery power information through a built-in power calculation method, and accurately display the current power. The built-in circuit can not only power the display, but also has the function of charging portable electronic devices.

3. According to claim 1, the display and live broadcast screen that does not require an external power supply also includes a built-in power control switch installed to achieve that the two power supply systems can be independently controlled without interfering with each other. When using an external power supply, the switch does not need to be turned on. When using the built-in power supply, just press the switch, and it has an indicator light.

4. A method for manufacturing a display and a large live screen that does not require an external power supply, characterized in that: The following steps are involved: Step 1: Connect the display mainboard and control circuit respectively to test whether the display screen is normal; Step 2: Fix the assembled battery pack inside the housing, install the power controller, boost circuit, and control switch; Step 3: Use welding technology to connect the power controller, boost circuit and control switch circuit to complete the voltage test of each component; Step 4: After installation is complete, test the machine and turn it on. Test the external power supply and internal power supply to see if they are normal. Step 5: After testing, seal the back cover and complete production assembly.

5. According to the manufacturing method described in claim 4, after completing the production and assembly, the internal battery cells are fully charged, the projection system is tested to see whether it is connected normally, the charging time and the usage time are tested, and it is considered qualified if the requirements are met.

6. A method for using a display and a live broadcast screen without an external power supply, characterized in that: It can be connected to the power adapter for indoor use. If used outdoors, the internal battery pack must be fully charged to 100% in advance. When using it, press the power switch on the back cover. The indicator light turns green when the button is pressed, indicating that the built-in power supply starts working. Press it again to turn off the light to cut off the power. When using the built-in power supply, pay attention to the remaining power. If the power display is zero, it means that the power is exhausted and needs to be fully charged again.

7. According to the method of use described in claim 6, when charging the internal battery, a fast charging head and a fast charging cable are required to achieve fast charging. During charging, pay attention to whether the green lightning mark is on. If it is on, it means fast charging is in progress.

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