Mining flame-proof and intrinsic safety type lithium ion storage battery power supply

Abstract

The utility model discloses a mining flame-proof and intrinsic safety type lithium ion storage battery power supply, which belongs to the technical field of lithium ion storage batteries, and comprises an input transformer T1, the input transformer T1 is connected with a rectifier module U1, the rectifier module U1 is connected with a lithium battery pack, the lithium battery pack is connected with a battery management system module BMS, and the battery management system module BMS is connected with a power supply. The battery management system module BMS is connected with a man-machine interaction interface module U4, the man-machine interaction interface module U4 is connected with an intrinsic safety power supply output module, and the rectifier module U1 is connected with an explosion-proof power supply output module. The battery management system module BMS and the man-machine interaction interface module U4 are arranged, various state parameters of the battery are monitored at any time, then prompt or alarm information is sent out at any time, and the probability of safety accidents such as fire or explosion is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium ion batteries, in particular to a mine explosion-proof and intrinsic safety type lithium ion battery power supply. BACKGROUND

[0002] At present, coal as China's basic energy provides a solid foundation for China's economic development. With the rapid development of the national economy, the demand for coal is increasing day by day, and the technology related to the coal industry is rapidly updated to meet the production mode of high quality, high efficiency and high safety. The mine lithium ion battery is an important direction of the development of auxiliary power in coal mine. However, due to the particularity of the mine environment, the mine lithium ion battery is required to be a cost-saving power supply, and it is required not to appear fire and explosion in extreme conditions.

[0003] In view of the above related technology, the applicant finds that the existing mine lithium ion battery is prone to fire and explosion under extreme conditions such as overcharge, overdischarge, extrusion, collision and heating due to the lack of battery state detection of the mine lithium ion battery. SUMMARY

[0004] The present application provides a mine explosion-proof and intrinsic safety type lithium ion battery power supply, which adopts a battery state monitoring device to monitor various state parameters of the battery at all times, and then sends prompt or alarm information at all times, thereby reducing the probability of fire or explosion accidents.

[0005] The technical scheme for solving the above technical problems is as follows:

[0006] A mine explosion-proof and intrinsic safety type lithium ion battery power supply, comprising an input transformer T1, the input transformer T1 is connected with a rectifier module U1, the rectifier module U1 is connected with a lithium battery pack, the lithium battery pack is connected with a battery management system module BMS, the battery management system module BMS is connected with a man-machine interaction interface module U4, the man-machine interaction interface module U4 is connected with an intrinsic safety power output module, and the rectifier module U1 is connected with an explosion-proof power output module.

[0007] Further, a communication isolation module G1 is connected between the battery management system module BMS and the man-machine interaction interface module U4.

[0008] Further, the battery management system module BMS is connected with a network transparent module U3, and the network transparent module U3 is connected with a radio frequency antenna.

[0009] Further, an antenna isolation module G3 is connected between the network transparent module U3 and the radio frequency antenna.

[0010] Further, the human-computer interaction interface module U4 is connected with the PLC module and the Ethernet module respectively.

[0011] Further, the communication isolation module G2 is connected between the human-computer interaction interface module U4 and the PLC module.

[0012] Further, a plurality of intrinsic safety power output interfaces are arranged on the intrinsic safety power output module.

[0013] Further, the electric energy meter DTS is connected between the input transformer T1 and the rectifier module U1.

[0014] Further, the inverter U2 is connected to the rectifier module U1, and the output transformer T2 is connected between the inverter U2 and the explosion-proof power output module.

[0015] Further, the lithium battery pack is composed of 17 pieces of 3.2V 60Ah mine lithium ion batteries in series, and the energy is 3264wh.

[0016] In summary, compared with the prior art, the beneficial effects of the above technical scheme are:

[0017] (1) The battery management system module BMS and the human-computer interaction interface module U4 are arranged to monitor various state parameters of the battery at all times, and then to send prompt or alarm information at all times, thereby reducing the probability of safety accidents such as fire or explosion;

[0018] (2) The coal mine underground backup power source realizes a leap to explosion-proof, large capacity, high safety, and high reliability, and provides effective power supply guarantee for the intelligentization and networking development of underground power supply monitoring and control;

[0019] (3) It has multiple intrinsic safety power output, replaces one-to-one power supply mode, adopts one-to-many mode to supply power to load equipment, has high intelligence, and can provide reliable backup power for coal mine underground power supply control system, communication system, emergency lighting system, power monitoring and control system, safety monitoring and control system, and refuge chamber;

[0020] (4) The lead radio frequency antenna is arranged, and the antenna isolation module G3 is arranged between the antenna and the internal circuit to realize real-time cloud monitoring function. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The electrical schematic diagram of the embodiment of the application. DETAILED DESCRIPTION

[0022] The principles and characteristics of the application are described below in combination with all the drawings, and the examples are only used to explain the application and not to limit the scope of the application.

[0023] The embodiment of the present application discloses a mine explosion-proof and intrinsic safety type lithium ion battery power supply.

[0024] Referring to Figure 1 The mine explosion-proof and intrinsic safety type lithium ion battery power supply comprises an input transformer T1, two AC input lines are connected in series on one side of the input transformer T1, and on-off switches K1 and K2 are respectively arranged on each AC input line, and are used for controlling the on-off of AC power.

[0025] An electric energy meter DTS is connected in series on the other side of the input transformer T1, and is used for detecting parameters such as voltage, current and power.

[0026] The electric energy meter DTS is further connected in series with a rectifier module U1, the electric energy meter DTS is arranged between the input transformer T1 and the rectifier module U1, an on-off switch K3 is connected between the electric energy meter DTS and the rectifier module U1, and the electric energy meter DTS and the rectifier module U1 are connected through a live wire and a zero line.

[0027] The rectifier module U1 is connected in series with a lithium battery pack, in the embodiment, the lithium battery pack is composed of 17 pieces of 3.2V 60Ah mine lithium ion batteries connected in series, and has an energy of 3264wh. An on-off switch is also arranged between the rectifier module U1 and the lithium battery pack.

[0028] The lithium battery pack is connected in communication with a battery management system module BMS, and the battery management system module BMS is used for managing charging and discharging of the lithium battery pack, battery balancing, overcharge and overdischarge protection, high and low temperature protection and the like.

[0029] The battery management system module BMS is connected in communication with a man-machine interaction interface module U4, the man-machine interaction interface U4 is used for displaying the running state of the whole device, voltage and temperature information of the lithium battery pack, alarm information, and each on-off switch can also be controlled through the man-machine interaction interface U4.

[0030] A communication isolation module G1 is connected in communication between the battery management system module BMS and the man-machine interaction interface module U4. The communication isolation module G1 is used for isolating intrinsic safety and non-intrinsic safety circuits.

[0031] The man-machine interaction interface module U4 is connected in communication with a PLC module and an Ethernet module. The Ethernet module is further provided with an Ethernet port, and is used for remotely checking and controlling the device through a local area network after being connected with a network cable.

[0032] A communication isolation module G2 is connected in communication between the man-machine interaction interface module U4 and the PLC module, and the communication isolation module G2 is used for isolating intrinsic safety and non-intrinsic safety circuits.

[0033] The human-computer interaction interface module U4 is connected with the intrinsic safety power output module in series, and a plurality of intrinsic safety power output interfaces are arranged on the intrinsic safety power output module. The human-computer interaction interface module U4 and the intrinsic safety power output module are further connected with an inverter, and the AC output end of the inverter is connected with three intrinsic safety power output interfaces D1, D2 and D3 in the embodiment, and the three intrinsic safety power output interfaces D1, D2 and D3 are sequentially connected with a zero line and a live wire, and the three intrinsic safety power output interfaces D1, D2 and D3 are also provided with on-off switches between the three intrinsic safety power output interfaces D1, D2 and D3 and the live wire, and different intrinsic safety power can be output through the intrinsic safety power output interfaces D1, D2 and D3, and DC 12 / 18 / 24V intrinsic safety output can be provided to supply power for intrinsic safety loads.

[0034] The battery management system module BMS is connected with a network transparent transmission module U3 in series, the network transparent transmission module U3 is connected with a radio frequency antenna, an antenna isolation module G3 is connected between the network transparent transmission module U3 and the radio frequency antenna, the antenna isolation module G3 is composed of a film capacitor and an antenna seat, in the embodiment, two capacitors are connected in series on the coaxial line of the radio frequency antenna, and the other two capacitors are connected in series with the shield wire in the middle, and the withstand voltage and the capacity of the four capacitors are the same. The antenna isolation module G3 is used for isolating intrinsic safety and non-intrinsic safety circuits, and the cloud monitoring function is realized by arranging the lead-out radio frequency antenna.

[0035] The rectifier module U1 is connected with the inverter U2 through the live wire and the zero line, and one side of the inverter U2 is connected with the lithium battery pack through the on-off switch K4.

[0036] The other side of the inverter U2 is connected with the explosion-proof power output module, an output transformer T2 is connected between the inverter U2 and the explosion-proof power output module, the zero line and the live wire are connected between the output transformer T2 and the inverter U2, and the on-off switch is further arranged. The output transformer T2 and the explosion-proof power output module are connected through the zero line and the live wire, a plurality of explosion-proof power output interfaces are arranged on the explosion-proof power output module, and the output transformer T2 and the explosion-proof power output interface are further provided with the on-off switch, and different explosion-proof power can be output through the explosion-proof power output interface.

[0037] The embodiment provides a new energy level 3264wh mine lithium ion battery power supply product, fills the market gap, has a plurality of intrinsic safety power output, replaces one-to-one power supply mode, adopts one-to-many mode to supply power for load equipment, has high intelligence, and can provide reliable backup power for coal mine underground power supply control system, communication system, emergency lighting system, power monitoring system, safety monitoring system and refuge chamber.

[0038] The implementation principle of the mine explosion-proof and intrinsic safety type lithium ion battery power supply in the embodiment of the application is as follows:

[0039] The coal mine underground alternating current is connected to a primary side of an input transformer T1, and a secondary side output is connected to an electric energy meter DTS, and after transformation, 220V voltage is obtained, connected to an alternating current input end of a rectifier module U1 through an on-off switch K3, and a direct current output end of the rectifier module U1 is connected to positive and negative poles of a lithium battery pack, and is used for charging the battery pack.

[0040] The transformer T1 secondary side is connected to an inverter U2 input voltage end, and is used for supplying power when the U2 works in a bypass mode.

[0041] The lithium battery pack output is used as a direct current input of the inverter U2, when alternating current power is cut off, the lithium battery pack provides working voltage for the inverter U2, and the inverter U2 uninterruptedly outputs to a load.

[0042] A battery management system module BMS is used for managing charging and discharging of the lithium battery pack, battery equalization, overcharge and overdischarge protection, and high and low temperature protection.

[0043] A network transparent transmission module U3 is connected to a communication port of the battery management system module BMS, and a man-machine interactive interface U4 is used for displaying device running state, voltage and temperature information of the lithium battery pack, and alarm information, and each output can be controlled to be turned on or off through the man-machine interactive interface U4.

[0044] The man-machine interactive interface U4 is also provided with an Ethernet port, and is used for remotely checking and controlling the device through a local area network after being connected with a network cable.

[0045] The safe power output interfaces D1, D2 and D3 have multiple safe power output, replace one-to-one power supply mode, adopt one-to-many mode to supply power for load devices, have high intelligent degree, and can provide reliable backup power for a coal mine underground power supply control system, a communication system, an emergency lighting system, a power monitoring system, a safety monitoring system and a refuge chamber.

[0046] The above only describes preferred embodiments of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mining explosion-proof and intrinsically safe lithium-ion battery power supply, characterized in that: The input transformer T1 is connected with the rectifier module U1, the rectifier module U1 is connected with the lithium battery group, the lithium battery group is connected with the battery management system module BMS, the battery management system module BMS is connected with the man-machine interface module U4, the man-machine interface module U4 is connected with the intrinsic safety power output module, and the rectifier module U1 is connected with the explosion-proof power output module.

2. The explosion-proof and intrinsically safe lithium ion battery power supply for mine as claimed in claim 1, wherein: The battery management system module BMS is connected with the man-machine interface module U4 through a communication isolation module G1.

3. The explosion-proof and intrinsically safe lithium ion battery power supply for mine as claimed in claim 1, wherein: The battery management system module BMS is connected with the network transparent module U3, and the network transparent module U3 is connected with the radio frequency antenna.

4. The mine-used explosion-proof and intrinsically safe lithium ion battery power supply according to claim 3, characterized in that: The network transparent module U3 is connected with the radio frequency antenna through an antenna isolation module G3.

5. The explosion-proof and intrinsically safe lithium ion battery power supply for mine as claimed in claim 1, wherein: The man-machine interface module U4 is connected with the PLC module and the Ethernet module respectively.

6. The mine-used explosion-proof and intrinsically safe lithium ion battery power supply according to claim 5, characterized in that: The man-machine interface module U4 is connected with the PLC module through a communication isolation module G2.

7. The explosion-proof and intrinsically safe lithium ion battery power supply for mine as claimed in claim 1, wherein: A plurality of intrinsic safety power output interfaces are arranged on the intrinsic safety power output module.

8. The explosion-proof and intrinsically safe lithium ion battery power supply for mine as claimed in claim 1, wherein: The input transformer T1 is connected with the rectifier module U1 through an electric energy meter DTS.

9. The explosion-proof and intrinsically safe lithium ion battery power supply for mine as claimed in claim 1, wherein: The rectifier module U1 is connected with the inverter U2, and the inverter U2 is connected with the explosion-proof power output module through an output transformer T2.

10. The explosion-proof and intrinsically safe lithium ion battery power supply for mine as claimed in claim 1, wherein: The lithium battery group is composed of 17 3.2V 60Ah mine lithium ion batteries in series, and the energy is 3264wh.

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