Multipath output intrinsically safe power supply capable of adjusting various voltages in underground coal mine

Abstract

Aiming at the problem that a fusion base station has various voltage adaptation requirements, the utility model provides the multi-path output intrinsic safety power supply capable of variously adjusting the underground coal mine voltage, a plurality of intrinsic safety voltage output modules are arranged, and each intrinsic safety voltage output module has an output voltage adjusting function, so that the intrinsic safety voltage can be adjusted according to the required voltage; and the adaptive voltage is adjusted and output, so that the requirements of the fusion base station on various voltages are met, and the high adaptability of the underground power supply of the coal mine is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine power supply, in particular to a multi-channel output intrinsically safe power supply with voltage adjustable in various ways in coal mines. Background Art

[0002] With the rapid development of smart mining technology, facing the simultaneous operation requirements of multiple communication devices (such as 5G, 4G, WiFi, switches, etc.) in the complex underground network environment, the use of fusion base stations has indeed become an inevitable trend in the industry. In coal mines, fusion base stations require intrinsically safe power supply. Due to differences in functions and working characteristics, these communication devices require different power supply voltages, such as DC12V, DC18V, and DC24V.

[0003] In order to ensure the stable operation of the fusion base station in the mine, it is very important to develop a multi-output intrinsically safe power supply that can adapt to various voltage requirements. Utility Model Content

[0004] Based on this, in order to solve the above technical problems, a multi-output intrinsically safe power supply with multiple adjustable voltages is provided in coal mines.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A multi-output intrinsically safe power supply with voltage adjustable in various ways in a coal mine, characterized by comprising:

[0007] Intrinsically safe flameproof housing;

[0008] Wide voltage switching power supply module, used to convert the input AC85-AC850V voltage into a stable DC voltage;

[0009] A mainboard, the mainboard being powered by the DC voltage output by the wide voltage switching power supply module;

[0010] A plurality of intrinsically safe voltage output modules, wherein the plurality of intrinsically safe voltage output modules are arranged on the main board, each intrinsically safe voltage output module is used to convert the input DC voltage into an intrinsically safe voltage for output, and the intrinsically safe voltage output module is provided with an adjustment switch for adjusting different levels of intrinsically safe voltage;

[0011] The wide voltage switching power supply module, the main board and a plurality of intrinsically safe voltage output modules are all arranged in the intrinsically safe flameproof housing.

[0012] The utility model provides a plurality of intrinsically safe voltage output modules with multi-channel output. Each intrinsically safe voltage output module has an output voltage adjustment function and can adjust the output adaptive voltage according to the required voltage, thereby meeting the requirements of the fusion base station for multiple voltages and improving the high adaptability of the power supply underground in coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 AA section view;

[0016] Figure 3 It is the internal electrical schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] like Figure 1 and Figure 3 As shown, an embodiment of the present specification provides a multi-output intrinsically safe power supply with multiple adjustable voltages in a coal mine, including an intrinsically safe flameproof housing 110, a wide voltage switching power supply module 120, a BMS battery energy storage management module 130, a battery pack 140, a main board 150, eight intrinsically safe voltage output modules 160, a core board 170 and a display screen 180.

[0018] The intrinsically safe flameproof housing 110 is used to protect the internal electrical components and prevent the propagation of external explosion waves and the explosion caused by the internal electrical components. The internal part has an equipment cavity 111 and a battery cavity 112. Figure 2 .

[0019] like Figure 1 As shown, the front side of the intrinsically safe flameproof housing 110 has a window for exposing the display screen 180 , and both sides have cable interfaces.

[0020] The wide voltage switching power supply module 120 , the main board 150 , multiple intrinsically safe voltage output modules 160 , the core board 170 and the display screen 180 are arranged in the equipment cavity 111 , and the BMS battery energy storage management module 130 and the battery pack 140 are arranged in the battery cavity 112 .

[0021] Among them, the wide voltage switching power supply module 120 is used to convert the input AC85-AC850V voltage into a stable DC28V direct current voltage to adapt to different voltage input environments. The DC28V direct current voltage is divided into two paths, one path is input into the main board 150, and the other path is input into the BMS battery energy storage management module 130 to charge the battery pack 140.

[0022] The BMS battery energy storage management module 130 is connected to the battery pack 140 and the main board 150, and is responsible for the charging, discharging management and protection of the battery pack 140. When the external AC power is cut off, the electric energy stored in the battery pack 140 can serve as a backup power source, maintain a stable power output, and realize an uninterrupted power supply function.

[0023] The main board 150 is responsible for communication and data exchange with various components. It has a remote communication port 151 and eight output terminals 152. The remote communication port 151 (such as an Ethernet port and a 485 communication port) is used for remote communication with the well equipment. The eight output terminals 152 correspond one-to-one to eight intrinsically safe voltage output modules 160 for outputting intrinsically safe voltage.

[0024] Eight intrinsically safe voltage output modules 160 are arranged on the main board 150 by means of pins. Each intrinsically safe voltage output module 160 is used to convert the input DC28V direct current voltage into an intrinsically safe voltage for output. The intrinsically safe voltage output module 160 has an adjustment switch for adjusting different levels of intrinsically safe voltage.

[0025] It should be pointed out that the number of the intrinsically safe voltage output modules 160 is not limited to eight, and the number can be freely configured according to user needs, thereby improving the applicability of the product.

[0026] In this embodiment, the intrinsically safe voltage output module 160 is a commercially available module, so its specific structure is not described here. Its adjustment switch is a dip switch. By adjusting and setting the dip switch, the module can output three levels of intrinsically safe voltage: DC12V, DC18V and DC24V.

[0027] The core board 170 is disposed on the main board 150 and is used to collect and analyze the battery pack data and the intrinsically safe voltage output module data from the main board.

[0028] The display screen 180 is arranged on the main board 150, and its position corresponds to the window on the front side of the intrinsically safe flameproof casing 110. It is used to display the data parsed by the core board 170, so that the user can understand the status of the battery pack and the intrinsically safe voltage output module. For example, the current output voltage, current, remaining backup time, etc. can be displayed in real time, thereby improving the reliability of the power supply and troubleshooting can be carried out through the faults displayed by the LCD.

[0029] The data parsed by the core board 170 is displayed on the display screen 180 and can be uploaded to the well equipment through the remote communication port 151 of the main board 150 for monitoring the status of the battery pack and the intrinsically safe voltage output module on the well.

[0030] From the above, it can be seen that the multi-output intrinsically safe power supply provided in the embodiment of the present application is equipped with multiple intrinsically safe voltage output modules, each of which has an output voltage adjustment function and can adjust the output adaptation voltage according to the required voltage, thereby meeting the requirements of the integrated base station for multiple voltages and improving the high adaptability of the underground power supply in coal mines.

[0031] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A multi-output intrinsically safe power supply with adjustable voltage in coal mines, characterized in that: include: Intrinsically safe flameproof housing; Wide voltage switching power supply module, used to convert the input AC85-AC850V voltage into a stable DC voltage; A mainboard, the mainboard being powered by the DC voltage output by the wide voltage switching power supply module; A plurality of intrinsically safe voltage output modules, wherein the plurality of intrinsically safe voltage output modules are arranged on the main board, each intrinsically safe voltage output module is used to convert the input DC voltage into an intrinsically safe voltage for output, and the intrinsically safe voltage output module is provided with an adjustment switch for adjusting different levels of intrinsically safe voltage; The wide voltage switching power supply module, the main board and a plurality of intrinsically safe voltage output modules are all arranged in the intrinsically safe flameproof housing.

2. The multi-output intrinsically safe power supply with adjustable voltage in coal mines according to claim 1, characterized in that: It also includes a BMS battery energy storage management module and a battery pack. The BMS battery energy storage management module is connected to the battery pack and the mainboard. The wide voltage switching power supply module outputs two DC voltages, one DC voltage is input to the mainboard, and the other DC voltage is input to the BMS battery energy storage management module.

3. The multi-output intrinsically safe power supply with adjustable voltage in coal mines according to claim 2, characterized in that: It also includes a core board, which is arranged on the main board and is used to collect and analyze battery pack data and intrinsically safe voltage output module data from the main board.

4. The multi-output intrinsically safe power supply with adjustable voltage in coal mines according to claim 3, characterized in that: It also includes a display screen, which is arranged on the main board and is used to display the data parsed by the core board.

5. The multi-output intrinsically safe power supply with adjustable voltage in coal mines according to claim 1, characterized in that: The main board has a remote communication port and a plurality of output terminals. The remote communication port is used for remote communication with the well equipment. The plurality of output terminals correspond one-to-one to the plurality of intrinsically safe voltage output modules and are used for outputting intrinsically safe voltage.

6. The multi-output intrinsically safe power supply with adjustable voltage in coal mines according to claim 1, characterized in that: The DC voltage is DC28V, and the intrinsically safe voltage has three levels: DC12V, DC18V and DC24V.

7. The multi-output intrinsically safe power supply with adjustable voltage in coal mines according to claim 1, characterized in that: The regulating switch is a dip switch.

Images