CN203135533U - A mining power supply device based on lithium iron phosphate batteries - Google Patents
A mining power supply device based on lithium iron phosphate batteries Download PDFInfo
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- CN203135533U CN203135533U CN 201320172712 CN201320172712U CN203135533U CN 203135533 U CN203135533 U CN 203135533U CN 201320172712 CN201320172712 CN 201320172712 CN 201320172712 U CN201320172712 U CN 201320172712U CN 203135533 U CN203135533 U CN 203135533U
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- lithium cell
- ferric phosphate
- phosphate lithium
- control module
- main control
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Abstract
The utility model discloses a mining power supply device based on lithium iron phosphate batteries. The mining power supply device comprises a lithium iron phosphate battery unit, a data acquiring module, a master control module, a fault alarm module, and a charger. The data acquiring module comprises a voltage sensor, a current sensor, and a temperature sensor. The voltage sensor and the current sensor are connected with the lithium iron phosphate battery unit. The temperature sensor is disposed on a box body of the lithium iron phosphate battery unit. The master control module is connected with the lithium iron phosphate battery unit through the charger and controls the operative states of the fault alarm module and the charger according to the input voltage, the input current, and the box body temperature of the data acquiring module. The mining power supply device is capable of prolonging the service life of a battery set and increasing the energy efficiency of the battery set and has advantages of high efficient battery set management, equalized battery control, safety and reliability, and stable power supply.
Description
Technical field
The utility model relates to field of power supplies, is specifically related to a kind of mining supply unit based on ferric phosphate lithium cell.
Background technology
Along with the application development of industrial technology especially information technology in the colliery, the China's coal-mine situation of production totally takes a favorable turn, but the probability of accident problem is still bigger, and along with the degree of depth of coal mining strengthens, the accident disaster is and increases the weight of trend, and these objective factors all cause great pressure and challenge to emergency management and rescue.Country pays much attention to emergency management and rescue technology and equipment research and development, supports under mining survival capsule, packaged type survival capsule, the coal mine relevant items such as urgent danger prevention system energetically.Mining survival capsule in use needs to have special-purpose dynamic power system that long-time uninterrupted safe power supply reliably is provided, and reliably implements to guarantee rescue work.Ferric phosphate lithium cell because of its except having common lithium electricity the good characteristic of aspects such as capacity, power, fail safe, environment friendly, also have do not burn, inexplosive characteristics, satisfied the anti-explosion safety requirement of coal mine operation, significantly improve the fail safe that the colliery down-hole power is used, so the stand-by power supply of coal mine equipment begins progressively to be inclined to the power supply of employing ferric phosphate lithium cell group.
The single electric core voltage of ferric phosphate lithium cell has only about 3.3V, and its finite capacity when therefore using in the industrial system of high-power colliery, must be formed battery pack by string and mode with a plurality of electric cores and use, to satisfy the requirement of capacity and load.Because there is certain difference in each electric core at manufacturing process, charge-discharge characteristic, what relatively poor electric core can be than other electric core agings is fast, in case overcharge will be overheated for certain electric core, easily causes the danger of combustion explosion.Therefore the ferric phosphate lithium cell group needs batteries management system, finishes functions such as balanced control, managementizationization.At present, China still concentrates in the electric automobile application in the management study of ferric phosphate lithium cell group, and the application study starting soon in coalmine rescue equipment.Because the circumstance complication under the coal mine, conventional battery management system temperature treatment can not satisfy the particularity of colliery environment for use, the accuracy of calculating residual capacity is difficult to satisfy the requirement of the high security of mining dynamic lithium battery, the safety that can't realize battery pack discharges and recharges control, is difficult to be suitable for the dynamic lithium battery group of using in more subsurface environments.
The utility model content
The technical problems to be solved in the utility model provides a kind of efficiency that can prolong battery pack useful life, improve battery pack, battery set management is efficient, battery control is balanced, safe and reliable, the stable mining supply unit based on ferric phosphate lithium cell of powering.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of mining supply unit based on ferric phosphate lithium cell, comprise the ferric phosphate lithium cell unit, data acquisition module, main control module, fault alarm module and charger, described data acquisition module comprises voltage sensor, current sensor and temperature sensor, described voltage sensor, current sensor links to each other with the ferric phosphate lithium cell unit respectively, described temperature sensor is located on the casing of ferric phosphate lithium cell unit, described main control module links to each other with the ferric phosphate lithium cell unit by charger, the output voltage of described voltage sensor senses ferric phosphate lithium cell unit is also exported to main control module, described current sensor detects the output current of ferric phosphate lithium cell unit and exports to main control module, described temperature sensor detects the spin manifold temperature of ferric phosphate lithium cell unit and exports to main control module, and described main control module is according to input voltage, electric current, the operating state of spin manifold temperature control fault alarm module and charger.
As further improvement in the technical proposal:
Described mining supply unit comprises that also described telecommunication port links to each other with main control module for the telecommunication port that communicates with host computer.
Described telecommunication port is the RS485 interface.
Described ferric phosphate lithium cell unit comprises a plurality of battery pack parallel with one another, and described battery pack comprises a plurality of ferric phosphate lithium cell list cores of series connection.
Described battery pack also comprises for the equalizing circuit of controlling the discharge condition of ferric phosphate lithium cell list core according to cut-in voltage, described equalizing circuit is corresponding one by one with ferric phosphate lithium cell list core, and any one equalizing circuit is continuous with corresponding ferric phosphate lithium cell list core.
Described ferric phosphate lithium cell unit comprises overvoltage crowbar and current foldback circuit, and described overvoltage crowbar links to each other with each battery pack respectively with current foldback circuit.
The utlity model has following advantage:
1, ferric phosphate lithium cell of the present utility model unit adopt do not burn, non-explosive ferric phosphate lithium cell is as power supply energy, satisfies the requirement of special occasions fail safes such as down-hole, has safe and reliable advantage.
2, the output voltage of the utility model voltage sensor senses ferric phosphate lithium cell unit is also exported to main control module, current sensor detects the output current of ferric phosphate lithium cell unit and exports to main control module, temperature sensor detects the spin manifold temperature of ferric phosphate lithium cell unit and exports to main control module, main control module is according to input voltage, electric current, the operating state of spin manifold temperature control fault alarm module and charger, adopt batteries management system efficiently, finish balanced control, to prolonging battery pack useful life, improve the efficiency of battery pack, to safety of coal mines, reliably, steady production all has practical significance.
3, the utility model data acquisition module comprises voltage sensor, current sensor and temperature sensor, and electric current and voltage and spin manifold temperature data that main control module adopts DSP to gather electric core as the chip of master controller and special use satisfy high-precision requirement.
4, the utility model further comprises for the telecommunication port that communicates with host computer, can finish monitoring to the health status of battery by host computer, and the prediction of battery failures realizes battery system early warning and warning.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the frame structure schematic diagram of the utility model embodiment.
Fig. 2 is the circuit theory schematic diagram of equalizing circuit among the utility model embodiment.
Fig. 3 is the circuit theory schematic diagram of overvoltage crowbar and current foldback circuit (protective circuit among Fig. 1) among the utility model embodiment.
Marginal data: 1, ferric phosphate lithium cell unit; 11, battery pack; 2, data acquisition module; 3, main control module; 31, telecommunication port; 4, fault alarm module; 5, charger.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection range of the present utility model is made more explicit defining.
As shown in Figure 1, present embodiment comprises ferric phosphate lithium cell unit 1 based on the mining supply unit of ferric phosphate lithium cell, data acquisition module 2, main control module 3, fault alarm module 4 and charger 5, data acquisition module 2 comprises voltage sensor, current sensor and temperature sensor, voltage sensor, current sensor links to each other with ferric phosphate lithium cell unit 1 respectively, temperature sensor is located on the casing of ferric phosphate lithium cell unit 1, main control module 3 links to each other with ferric phosphate lithium cell unit 1 by charger 5, the output voltage of voltage sensor senses ferric phosphate lithium cell unit 1 is also exported to main control module 3, current sensor detects the output current of ferric phosphate lithium cell unit 1 and exports to main control module 3, temperature sensor detects the spin manifold temperature of ferric phosphate lithium cell unit 1 and exports to main control module 3, and main control module 3 is according to input voltage, electric current, the operating state of spin manifold temperature control fault alarm module 4 and charger 5.
In the present embodiment, ferric phosphate lithium cell unit 1 comprises 3 battery pack 11 parallel with one another, and battery pack 11 comprises 12 ferric phosphate lithium cell list cores of series connection, and total capacity reaches about 120V, satisfies the requirement of certain loads.In the present embodiment, battery pack 11 also comprises for the equalizing circuit of controlling the discharge condition of ferric phosphate lithium cell list core according to cut-in voltage, equalizing circuit is corresponding one by one with ferric phosphate lithium cell list core, and any one equalizing circuit is continuous with corresponding ferric phosphate lithium cell list core.Equalizing circuit adopts collecting and distributing control, is furnished with equalizing circuit for each ferric phosphate lithium cell list core, the cut-in voltage of regulation equalizing circuit and unified euqalizing current, when the voltage of ferric phosphate lithium cell list core reaches cut-in voltage, then equalizing circuit connection ferric phosphate lithium cell list core carries out low discharging current, otherwise equalizing circuit is disconnected, and is independently because each ferric phosphate lithium cell list core discharges and recharges, and has guaranteed the equalization stable that battery pack 11 finally discharges and recharges.
As shown in Figure 2, the mode that the equalizing circuit of present embodiment adopts energy to shift realizes that inductance L 1, fast recovery diode D1 and power switch tube S 1 constitute basic equalizing circuit.E1～E12 is 12 battery list cores in the battery pack 11, and equalizing circuit is connected in parallel on battery list core E
yOn, be used for E
yEquilibrium.The two ends electric current is I1 during batteries charging, and equalizing circuit is not worked under the situation of equalizing charge, if E
yBecause mis-behave or other factors cause terminal voltage apparently higher than other battery list core, then S1 presses certain duty ratio copped wave by control unit control.After entering stable state, when S1 opens, electric current I 5 linear growths of flow through L1 and S1, the L1 energy storage increases, and single core E flows through this moment
yOn electric current I 4 no longer equal the two ends electric current I 1 of battery pack, and by a shunting part.Therefore limited the growth of single core charging current.In a chopping cycle, S1 opens a period of time according to duty ratio D and enters off-phases, the electric current of L1 of flowing through change the path by D1 become I3 to Ex to Ex+m m+1 single core charging altogether, be that inductive energy storage is transferred to other single core and does not influence the charging current of Ey, the charging current of Ey is by returning to I1, equate with battery pack two ends electric current, finished equalization function.
In the present embodiment; ferric phosphate lithium cell unit 1 comprises protective circuit (being overvoltage crowbar and current foldback circuit); overvoltage crowbar links to each other with each battery pack respectively with current foldback circuit, has over-charge protective, crosses the effect of putting protection and short-circuit protection, can prevent contingency.
As shown in Figure 3, overvoltage crowbar adopts the CN3060 chip to realize that 6 pin of CN3060 chip are connected with positive electrode with 10 pin, 2 pin and 3 pin ground connection, and 4 pin, 5 pin, 8 pin, 9 pin meet VCC; Current foldback circuit (short-circuit protection circuit) adopts the FS326 chip to realize, 2 pin of FS326 chip are connected with negative electrode, 5 pin are connected with positive electrode, and 6 pin are connected with the drain electrode of positive electrode with power tube M2 respectively, and 1 pin is connected with the grid of power tube M1 and M2 respectively with 3 pin; When the 2 pin voltages that detect the FS326 chip greater than built-in fixed voltage, illustrate that discharge stream is excessive, this moment 1 pin output low level, the switch-off power pipe, stop the discharge, the protection battery.
In the present embodiment, data acquisition module 2 comprises voltage sensor, current sensor and temperature sensor, voltage sensor in the present embodiment, current sensor is realized based on the LTC6802 chip, the LTC6802 chip is battery management chip, has the temperature sensor input, 12 ADC and an accurate voltage reference, can measure 12 monomer electricity cores, can realize 0.12% (at ambient temperature) and 0.22% accuracy of (40 ℃-85 ℃), can bear the voltage of 60V, the situation that adapts to the high common-mode voltage of battery pack fully, thereby electric current and voltage by electric core in LTC6802 chip detection ferric phosphate lithium cell unit 1 casing; Temperature sensor adopts the DS18B20 chip, and for detection of the temperature of casing, the DS18B20 chip is digital temperature sensor, can satisfy under particular application such as mine, to the requirement of battery temperature certainty of measurement.
In the present embodiment, it is the dsp chip realization of TMS320F2812 that main control module 3 adopts model, the TMS320F2812 chip internal is integrated with 1 CAN controller and interface, be used for finishing and the communicating by letter of data acquisition module interblock, the TMS320F2812 chip has extended out the RS485 communication interface simultaneously, purpose is to communicate with external equipment, realizes exchanges data.The mining supply unit of present embodiment comprises that also telecommunication port 31 links to each other with main control module 3 for the telecommunication port 31 that communicates with host computer.In the present embodiment, telecommunication port 31 is the RS485 interface, and specifically the RS485 communication interface that extends out based on the TMS320F2812 chip realizes.Main control module 3 can be realized communicating with host computer (industrial computer) by telecommunication port 31, thereby can realize remote monitoring and control easily, uses convenient.
In the present embodiment, fault alarm module 4 is specially buzzer, can adopt forms such as comprising LED, voice, LCD or above-mentioned form to mix the alarm module of realizing in addition as required.
In the present embodiment, charger 5 comprises shell and inner charging circuit, and charging circuit links to each other with each ferric phosphate lithium cell list core, for each ferric phosphate lithium cell list core charges separately.
Present embodiment in the course of the work, current sensor detects the output current of ferric phosphate lithium cell unit 1 and exports to main control module 3, temperature sensor detects the spin manifold temperature of ferric phosphate lithium cell unit 1 and exports to main control module 3, main control module 3 is according to input voltage, electric current, spin manifold temperature is analyzed and the SOC of processing and battery estimates, if take place unusually then control fault alarm module 4 to give the alarm, begin to charge for each the ferric phosphate lithium cell list core in each battery pack 11 of ferric phosphate lithium cell unit 1 if ferric phosphate lithium cell unit 1 is crossed low then controlled charger 5.
The above only is preferred implementation of the present utility model, and protection range of the present utility model is not limited in above-mentioned execution mode, and every technical scheme that belongs to the utility model principle all belongs to protection range of the present utility model.For a person skilled in the art, some improvements and modifications of under the prerequisite that does not break away from principle of the present utility model, carrying out, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. mining supply unit based on ferric phosphate lithium cell, it is characterized in that: comprise ferric phosphate lithium cell unit (1), data acquisition module (2), main control module (3), fault alarm module (4) and charger (5), described data acquisition module (2) comprises voltage sensor, current sensor and temperature sensor, described voltage sensor, current sensor links to each other with ferric phosphate lithium cell unit (1) respectively, described temperature sensor is located on the casing of ferric phosphate lithium cell unit (1), described main control module (3) links to each other with ferric phosphate lithium cell unit (1) by charger (5), the output voltage of described voltage sensor senses ferric phosphate lithium cell unit (1) is also exported to main control module (3), described current sensor detects the output current of ferric phosphate lithium cell unit (1) and exports to main control module (3), described temperature sensor detects the spin manifold temperature of ferric phosphate lithium cell unit (1) and exports to main control module (3), and described main control module (3) is according to input voltage, electric current, the operating state of spin manifold temperature control fault alarm module (4) and charger (5).
2. the mining supply unit based on ferric phosphate lithium cell according to claim 1, it is characterized in that: described mining supply unit comprises that also described telecommunication port (31) links to each other with main control module (3) for the telecommunication port (31) that communicates with host computer.
3. the mining supply unit based on ferric phosphate lithium cell according to claim 2, it is characterized in that: described telecommunication port (31) is the RS485 interface.
4. according to claim 1 or 2 or 3 described mining supply units based on ferric phosphate lithium cell, it is characterized in that: described ferric phosphate lithium cell unit (1) comprises a plurality of battery pack (11) parallel with one another, and described battery pack (11) comprises a plurality of ferric phosphate lithium cell list cores of series connection.
5. the mining supply unit based on ferric phosphate lithium cell according to claim 4, it is characterized in that: described battery pack (11) also comprises for the equalizing circuit of controlling the discharge condition of ferric phosphate lithium cell list core according to cut-in voltage, described equalizing circuit is corresponding one by one with ferric phosphate lithium cell list core, and any one equalizing circuit is continuous with corresponding ferric phosphate lithium cell list core.
6. the mining supply unit based on ferric phosphate lithium cell according to claim 5; it is characterized in that: described ferric phosphate lithium cell unit (1) comprises overvoltage crowbar and current foldback circuit, and described overvoltage crowbar links to each other with each battery pack (11) respectively with current foldback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172712 CN203135533U (en) | 2013-03-28 | 2013-03-28 | A mining power supply device based on lithium iron phosphate batteries |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172712 CN203135533U (en) | 2013-03-28 | 2013-03-28 | A mining power supply device based on lithium iron phosphate batteries |
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| CN203135533U true CN203135533U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320172712 Expired - Fee Related CN203135533U (en) | 2013-03-28 | 2013-03-28 | A mining power supply device based on lithium iron phosphate batteries |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290690A (en) * | 2017-06-15 | 2017-10-24 | 北京伊电园网络科技有限公司 | A kind of detection method and detection means |
| CN108631444A (en) * | 2018-05-30 | 2018-10-09 | 国网江苏电力设计咨询有限公司 | Transforming plant DC power supply hierarchical monitoring based on ferric phosphate lithium cell manages system |
| CN111540969A (en) * | 2020-05-14 | 2020-08-14 | 义乌易换骑电池有限公司 | Safety management method of lithium iron phosphate battery |
-
2013
- 2013-03-28 CN CN 201320172712 patent/CN203135533U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290690A (en) * | 2017-06-15 | 2017-10-24 | 北京伊电园网络科技有限公司 | A kind of detection method and detection means |
| CN108631444A (en) * | 2018-05-30 | 2018-10-09 | 国网江苏电力设计咨询有限公司 | Transforming plant DC power supply hierarchical monitoring based on ferric phosphate lithium cell manages system |
| CN111540969A (en) * | 2020-05-14 | 2020-08-14 | 义乌易换骑电池有限公司 | Safety management method of lithium iron phosphate battery |
| CN111540969B (en) * | 2020-05-14 | 2023-05-12 | 义乌易换骑电池有限公司 | Safety management method of lithium iron phosphate battery |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140328 |