CN204205645U - A kind of coal mine flame-proof type lithium battery starts power supply - Google Patents
A kind of coal mine flame-proof type lithium battery starts power supply Download PDFInfo
- Publication number
- CN204205645U CN204205645U CN201420630891.4U CN201420630891U CN204205645U CN 204205645 U CN204205645 U CN 204205645U CN 201420630891 U CN201420630891 U CN 201420630891U CN 204205645 U CN204205645 U CN 204205645U
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- Prior art keywords
- lithium battery
- circuit
- interface
- power supply
- battery pack
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 111
- 239000003245 coal Substances 0.000 title claims abstract description 17
- 239000007858 starting material Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of coal mine flame-proof type lithium battery and start power supply, comprise power circuit, electric power management circuit, department's control room circuit, charge-discharge protection circuit, charging circuit and start-up circuit.Electric power management circuit is provided with lithium battery administrative unit, charge-discharge protection circuit is provided with auxiliary relay and D.C. contactor, the voltage of cell, temperature, current detecting and warning can be realized by lithium battery administrative unit; And when after the charging complete of lithium battery group, lithium battery administrative unit can automatically control auxiliary relay and disconnect, and makes direct current contact and disconnects, lithium battery group charging termination; When non-normal use appears in lithium battery group, lithium battery administrative unit disconnects by controlling auxiliary relay, direct current is contacted and disconnects, and the discharge and recharge realizing lithium battery group stops, and lithium battery group is protected.In addition, can when lithium battery group there be electricity completely by the first diode and the second diode, utilize charger to power for lithium battery administrative unit.
Description
Technical Field
The utility model relates to a colliery flame-proof type lithium cell starting power supply.
Background
At present, the starting power supply of a coal mine diesel locomotive is mostly an explosion-proof starting type lead-acid storage battery which has the defects of small capacity, large self-discharge capacity, short service life, serious environmental pollution and the like. The lithium ion storage battery has the remarkable characteristics of high specific power and specific energy, greenness, no pollution, long service life and the like, is an optimal substitute product of the lead-acid storage battery, and is the development direction of a novel secondary storage battery. The national center of safety standards issues 5 documents such as safety technical requirements (trial) for mining lithium ion storage batteries and safety technical requirements (trial) for power supplies of mining explosion-proof (intrinsically safe) lithium ion storage batteries, which indicates that the application of the lithium ion storage batteries in the underground well has entered a substantial stage. Therefore, the lithium battery is applied to the coal mine starting power supply, and has great significance for the coal mine.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a colliery flame-proof type lithium cell starting power supply as colliery diesel locomotive starting power supply, replaces current lead acid battery starting power supply.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a coal mine explosion-proof lithium battery starting power supply comprises a power supply circuit, a power supply management circuit, a driver control room circuit, a charge-discharge protection circuit, a charging circuit and a starting circuit; wherein,
the power circuit comprises a lithium battery pack and a main mechanical switch;
the power supply management circuit is connected in parallel to the power supply circuit and comprises a lithium battery management unit and a first diode;
the driver control room circuit is connected in parallel to the power supply circuit and comprises a first switch and a driver control room interface;
the charging circuit comprises a second switch and a charger interface;
a starter circuit including a third switch and a starter interface;
the charging and discharging protection circuit comprises an intermediate relay and a direct current contactor;
the intermediate relay is connected in parallel to the lithium battery management unit;
the direct current contactor is connected in series with a parallel circuit formed by the charging circuit and the starting circuit and then connected in parallel to a power circuit;
the charger interface is connected in series with a second diode and then connected to the lithium battery management unit in parallel;
and the lithium battery management unit is used for detecting and alarming the voltage, the temperature and the current of the single battery of the lithium battery pack and controlling the charge and discharge protection circuit to realize the charge/discharge protection of the lithium battery pack.
Further, when the lithium battery pack is completely dead, the lithium battery management unit is supplied with power through the charger interface, the first diode and the second diode.
Further, when the lithium battery pack is abnormally used, the lithium battery management unit controls the intermediate relay to be disconnected to disconnect the direct current contactor, so that the charging and discharging of the lithium battery pack are stopped;
the abnormal use condition comprises over-temperature, over-voltage or under-voltage of the lithium battery pack.
Further, after the lithium battery pack is charged, the lithium battery management unit automatically controls the intermediate relay to be disconnected so that the direct current contactor is disconnected, and the lithium battery pack is charged.
Further, the lithium battery management unit comprises an MCU, wherein the MCU is provided with an SPI interface, at least one CAN bus interface, two GPIO interfaces, two AD interfaces and a DC/DC interface; wherein,
a special voltage detection chip of the series battery pack is connected to the SPI interface;
a TFT liquid crystal display unit is connected to the CAN bus interface through a CAN bus;
a temperature sensor is connected to one GPIO interface;
the intermediate relay is connected to the other GPIO interface;
a first single-power-supply current Hall sensor is connected to an AD interface;
the other AD interface is connected with a second single-power-supply current Hall sensor;
the DC/DC interface is connected with a DC/DC power supply;
the first single-power-supply current Hall sensor and the second single-power-supply Hall sensor have different measuring ranges.
Further, the coal mine explosion-proof lithium battery starting power supply also comprises an explosion-proof box, wherein the explosion-proof box comprises a battery cavity, a control cavity and a wiring cavity; wherein,
the lithium battery pack is positioned inside the battery cavity;
the lithium battery management unit, the main mechanical switch, the first switch, the second switch and the third switch are positioned in the control cavity;
the driver control room interface, the charger interface and the starter interface are positioned in the wiring cavity.
The utility model has the advantages of as follows:
the utility model provides a starting power supply, including power supply circuit, power management circuit, department's control room circuit, charge-discharge protection circuit, charging circuit and starting circuit. The lithium battery management unit is arranged on the power supply management circuit, the intermediate relay and the direct current contactor are arranged on the charging and discharging protection circuit, and voltage, temperature and current detection and alarm of the single battery can be realized through the lithium battery management unit; after the lithium battery pack is charged, the lithium battery management unit can automatically control the intermediate relay to be disconnected, so that direct current contact is disconnected, and the lithium battery pack is charged; when the lithium battery pack is abnormally used, the lithium battery management unit controls the intermediate relay to be disconnected, so that direct current contact is disconnected, charging and discharging of the lithium battery pack are stopped, and the lithium battery pack is protected. In addition, the first diode and the second diode can supply power to the lithium battery management unit by using the charger when the lithium battery pack is completely out of power, so that the lithium battery management unit can work normally under any condition. The utility model discloses accord with colliery special requirement, it is multiple functional, have small, discharge current is big, capacious, small, longe-lived and pollute little advantage.
Drawings
FIG. 1 is a circuit block diagram of a coal mine explosion-proof lithium battery starting power supply of the utility model;
FIG. 2 is a block diagram of a lithium battery management unit of FIG. 1;
FIG. 3 is a diagram of the connection of the coal mine explosion-proof lithium battery starting power supply;
the system comprises a lithium battery pack 1, a general mechanical switch 2, a lithium battery management unit 3, a first diode 4, a first switch 5, a driver control room interface 6, an intermediate relay 7, a direct current contactor 8 and a second switch 9;
10-a charger interface, 11-a third switch, 12-a starter interface, 13-a second diode, 14-a special voltage detection chip of a series battery pack, 15-a TFT liquid crystal display unit, 16-a temperature sensor, 17-a first single-power-supply current Hall sensor, 18-a second single-power-supply current Hall sensor and 19-a DC/DC power supply;
20-battery chamber, 21-control chamber, 22-wiring chamber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
referring to fig. 1, a coal mine explosion-proof lithium battery starting power supply comprises a power circuit, a power management circuit, a driver control room circuit, a charging and discharging protection circuit, a charging circuit and a starting circuit. Wherein,
the power supply circuit comprises a lithium battery pack 1 and a general mechanical switch 2.
The power management circuit is connected in parallel to the power circuit and comprises a lithium battery management unit 3 and a first diode 4.
The driver control room circuit is connected in parallel to the power supply circuit and comprises a first switch 5 and a driver control room interface 6, and the driver control room interface 6 can be connected with equipment such as a lighting lamp.
The charging circuit comprises a second switch 9 and a charger interface 10, wherein the charger interface 10 is connected with a charger and is used for charging the lithium battery pack.
The starting circuit comprises a third switch 11 and a starter interface 12, wherein the starter interface 12 is connected with a starter and is used for realizing a starting function. The charging circuit is connected in parallel with the starting circuit.
A charge and discharge protection circuit comprises an intermediate relay 7 and a DC contactor 8, wherein,
the intermediate relay 7 is connected in parallel to the lithium battery management unit 3;
the parallel circuit formed by the charging circuit and the starting circuit is connected in series with the direct current contactor 8 and then connected in parallel to the power circuit.
The charger interface 12 is connected in series with a second diode 13 and then connected in parallel to the lithium battery management unit 3.
And the lithium battery management unit 3 is used for detecting and alarming the voltage, the temperature and the current of the single battery of the lithium battery pack and controlling the charge and discharge protection circuit to realize the charge/discharge protection of the lithium battery pack.
The operation process is as follows:
when the user uses the lithium battery management unit, the general mechanical switch 2 is firstly closed, and at the moment, the lithium battery management unit 3 starts to work. Then the first switch 5 is closed, and the lithium battery pack 1 supplies power to the control room.
Under the condition that the lithium battery pack 1 works normally, the lithium battery management unit 3 controls the intermediate relay 7 to be attracted, so that the direct current contact 8 is conducted, and at the moment, a user can finish the starting function only by manually closing the third switch 11.
After the start is completed, the started power equipment drives the charger to start working, and a user can manually close the second switch 9 to charge the lithium battery pack 1.
After the lithium battery pack 1 is charged, the lithium battery management unit 3 can automatically control the intermediate relay 7 to be disconnected, so that the direct current contact 8 is disconnected, and the charging of the lithium battery pack 1 is stopped.
When the lithium battery pack is abnormally used, the lithium battery management unit 3 controls the intermediate relay 7 to be disconnected, so that the direct current contact 8 is disconnected, the charging and discharging of the lithium battery pack 1 are stopped, and the lithium battery pack 1 is protected;
the abnormal use condition includes over-temperature, over-pressure, or under-pressure, etc.
The diodes D1 and D2 realize the function of supplying power to the lithium battery management unit 3 by using an external power supply such as a charger when the lithium battery pack 1 is completely out of power, and ensure that the lithium battery management unit 3 can work normally under any condition.
As shown in fig. 2, the lithium battery management unit 3 includes an MCU, and the MCU is provided with an SPI interface, at least one CAN bus interface, two GPIO interfaces, two AD interfaces, and a DC/DC interface. Wherein,
a serial battery pack voltage detection special chip 14 is connected to the SPI interface, and voltage detection is carried out through the serial battery pack voltage detection special chip 14;
a TFT liquid crystal display unit 15 is connected to the CAN bus interface through a CAN bus;
a temperature sensor 16 is connected to one GPIO interface, and temperature detection is carried out through the temperature sensor 16 in single bus communication;
an intermediate relay 7 is connected to the other GPIO interface;
a first single-power-supply current hall sensor 17 is connected to an AD interface;
a second single-power-supply current hall sensor 18 is connected to the other AD interface;
a DC/DC power supply 19 is connected to the DC/DC interface;
the first single power supply current HALL sensor 17 and the second single power supply HALL sensor 18 have different ranges, and current detection is performed by the two single power supply current HALL sensors HALL1 and HALL2 having different ranges.
The TFT liquid crystal display unit 15 is connected with the lithium battery management unit 3 through a CAN bus, and the TFT liquid crystal display unit 15 also has an MCU to control a TFT screen and receives data sent by the lithium battery management unit 3 through the CAN bus of the MCU.
The first interface designed mainly displays the voltage of a single battery, the temperature of the single battery and the charging and discharging current through the control of the MCU on the TFT screen, and the second alarm interface mainly displays the alarms of overvoltage, overtemperature, wire breakage of a detection line and the like.
In addition, the coal mine explosion-proof lithium battery starting power supply also comprises an explosion-proof box.
The explosion-proof box comprises a battery cavity 20, a control cavity 21 and a wiring cavity 22. Wherein,
the lithium battery pack 1 and the temperature sensor 16 are positioned inside the battery cavity 20;
the lithium battery management unit 3, the main mechanical switch 2, the first switch 5, the second switch 9 and the third switch 11 are positioned inside the control cavity 21;
the driver control room interface 6, the charger interface 10 and the starter interface 12 are positioned inside the wiring cavity 22.
Of course, the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and it should be noted that any equivalent substitution, obvious modification made by those skilled in the art under the teaching of the present specification fall within the essential scope of the present specification, and the protection of the present invention should be protected.
Claims (6)
1. A coal mine explosion-proof lithium battery starting power supply is characterized by comprising a power supply circuit, a power supply management circuit, a driver control room circuit, a charging and discharging protection circuit, a charging circuit and a starting circuit; wherein,
the power circuit comprises a lithium battery pack and a main mechanical switch;
the power supply management circuit is connected in parallel to the power supply circuit and comprises a lithium battery management unit and a first diode;
the driver control room circuit is connected in parallel to the power supply circuit and comprises a first switch and a driver control room interface;
the charging circuit comprises a second switch and a charger interface;
a starter circuit including a third switch and a starter interface;
the charging and discharging protection circuit comprises an intermediate relay and a direct current contactor;
the intermediate relay is connected in parallel to the lithium battery management unit;
the direct current contactor is connected in series with a parallel circuit formed by the charging circuit and the starting circuit and then connected in parallel to a power circuit;
the charger interface is connected in series with a second diode and then connected to the lithium battery management unit in parallel;
and the lithium battery management unit is used for detecting and alarming the voltage, the temperature and the current of the single battery of the lithium battery pack and controlling the charge and discharge protection circuit to realize the charge/discharge protection of the lithium battery pack.
2. The coal mine explosion-proof lithium battery starting power supply as claimed in claim 1, wherein when the lithium battery pack is completely dead, the lithium battery management unit is powered by the charger interface, the first diode and the second diode.
3. The coal mine explosion-proof lithium battery starting power supply according to claim 1, characterized in that when the lithium battery pack is abnormally used, the lithium battery management unit controls the intermediate relay to be disconnected to disconnect the direct current contactor, so that the charging and discharging of the lithium battery pack are stopped;
the abnormal use condition comprises over-temperature, over-voltage or under-voltage of the lithium battery pack.
4. The coal mine explosion-proof lithium battery starting power supply as claimed in claim 1, wherein after the lithium battery pack is charged, the lithium battery management unit automatically controls the intermediate relay to be disconnected so that the direct current contactor is disconnected, and the lithium battery pack is charged to be stopped.
5. The coal mine explosion-proof lithium battery starting power supply of claim 1, wherein the lithium battery management unit comprises an MCU, and the MCU is provided with an SPI interface, at least one CAN bus interface, two GPIO interfaces, two AD interfaces and a DC/DC interface; wherein,
a special voltage detection chip of the series battery pack is connected to the SPI interface;
a TFT liquid crystal display unit is connected to the CAN bus interface through a CAN bus;
a temperature sensor is connected to one GPIO interface;
the intermediate relay is connected to the other GPIO interface;
a first single-power-supply current Hall sensor is connected to an AD interface;
the other AD interface is connected with a second single-power-supply current Hall sensor;
the DC/DC interface is connected with a DC/DC power supply;
the first single-power-supply current Hall sensor and the second single-power-supply Hall sensor have different measuring ranges.
6. A coal mine explosion-proof lithium battery starting power supply according to any one of claims 1 to 5, characterized by further comprising an explosion-proof box, comprising a battery cavity, a control cavity and a wiring cavity; wherein,
the lithium battery pack is positioned inside the battery cavity;
the lithium battery management unit, the main mechanical switch, the first switch, the second switch and the third switch are positioned in the control cavity;
the driver control room interface, the charger interface and the starter interface are positioned in the wiring cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630891.4U CN204205645U (en) | 2014-10-28 | 2014-10-28 | A kind of coal mine flame-proof type lithium battery starts power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630891.4U CN204205645U (en) | 2014-10-28 | 2014-10-28 | A kind of coal mine flame-proof type lithium battery starts power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204205645U true CN204205645U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420630891.4U Expired - Fee Related CN204205645U (en) | 2014-10-28 | 2014-10-28 | A kind of coal mine flame-proof type lithium battery starts power supply |
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| CN (1) | CN204205645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333061A (en) * | 2014-10-28 | 2015-02-04 | 山东科技大学 | Flameproof lithium battery starting power source for coal mine |
| CN104882923A (en) * | 2015-05-11 | 2015-09-02 | 宋增荣 | Diesel-engine-dedicated start power supply |
-
2014
- 2014-10-28 CN CN201420630891.4U patent/CN204205645U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333061A (en) * | 2014-10-28 | 2015-02-04 | 山东科技大学 | Flameproof lithium battery starting power source for coal mine |
| CN104882923A (en) * | 2015-05-11 | 2015-09-02 | 宋增荣 | Diesel-engine-dedicated start power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20161028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |