CN202602308U - Explosion-proof power supply apparatus - Google Patents
Explosion-proof power supply apparatus Download PDFInfo
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- CN202602308U CN202602308U CN 201120514576 CN201120514576U CN202602308U CN 202602308 U CN202602308 U CN 202602308U CN 201120514576 CN201120514576 CN 201120514576 CN 201120514576 U CN201120514576 U CN 201120514576U CN 202602308 U CN202602308 U CN 202602308U
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Abstract
The utility model relates to an explosion-proof power supply apparatus which is used in class I and class II explosion-proof environments, and composed of an explosion-proof battery management system, an explosion-proof lithium battery pack, an explosion-proof cable for connection and an explosion-proof cabinet assembly. The external of the explosion-proof battery management system is two metal explosion-proof cabinets. Each of the metal explosion-proof cabinets comprises a main chamber with a flame-proof structure and a wiring chamber. The main chamber and the wiring chamber are separated by a separator. The main chamber is placed with electric appliance parts: a plurality of groups of data acquisition modules, a master control module, a display module, an insulation detection module, a fuse, a current sensor, a charge contactor, and a discharge contactor. The separator of the wiring chamber is provided with a plurality of wiring terminals. The explosion-proof lithium battery pack is also provided with a main chamber and a wiring chamber which are separated by a separator. The lithium battery pack is placed in the main chamber and is installed and fixed by a clamp for series connection. The separator of the wiring chamber is also provided with a plurality of wiring terminals. The explosion-proof battery management system and the explosion-proof lithium battery pack are connected by the explosion-proof cable, and the explosion-proof battery management system implements safety management control of the current, voltage, and temperature of the explosion-proof lithium battery pack. The explosion-proof power supply apparatus which is used in class I and class II explosion-proof environments has an explosion-proof safety protection function, if the explosion-proof lithium battery pack has faults of under-voltage, over-voltage, high temperature and over-current, the charge contactor/discharge contactor is notified to break a charge/discharge loop, and the protection is implemented for the whole lithium battery pack.
Description
Technical field
The utility model relates to a kind of explosion-proof electrical source device, specially refers to that to be used under I class and the II class blast protection environment be the explosion-proof electrical source device of the energy with the lithium battery group.
Background technology
At present, lithium iron phosphate dynamic battery seven big advantages: one, extra long life, the cycle life of long-life lead-acid battery are about 300 times, and lithium iron phosphate dynamic battery cycle life reaches more than 2000 times.The combination property price is than 4 times for lead-acid battery.Two, safe in utilization, LiFePO4 has solved the security hidden trouble of cobalt acid lithium and LiMn2O4 fully, even in worst traffic accident, also can not produce blast.Three, electric current 2C fast charging and discharging greatly, under special charger, the 1.5C charging can make battery be full of in 40 minutes, and starting current can reach 2C, and lead-acid battery does not have this performance now.Four, high temperature resistant, LiFePO4 electric heating peak value can reach 350 ℃-500 ℃.Five, big capacity.Six, memory-less effect.Seven, environmental protection.
Because ferric phosphate lithium cell has above-mentioned advantage, use it for the safety that needs the good whole ferric phosphate lithium cell group of management under I class and the II class blast protection environment.The present invention is placed on battery pack, battery management system in the different flame proof environment; Even the electric component of battery pack and battery management system the inside produces spark or discharge because of spontaneous combustion, short circuit, the high temperature that possibly exist, can not contact accidents caused with combustible (for example methane gas etc.) yet.
Summary of the invention
The present invention has taked following technical scheme:
A kind of explosion-proof electrical source device is used for I class and II class explosion-proof environment, comprising: anti-explosion battery management system and explosion-proof lithium battery group, and connect with anti-explosion cable and explosion-proof group spare formation.
Two explosion-proof cabinets of metal that said anti-explosion battery management system outside has dividing plate to separate in the middle of being with explosion separation structure master chamber and wire connection cavity, dividing plate is provided with a plurality of binding posts; Be provided with multi-group data acquisition module, main control module, display module, insulation monitoring module, fuse, current sensor, charging contactor, discharge contactor in the primary inner lumen, they are connected respectively through many signal line with binding post one end separately; Wire connection cavity wall arranged outside has a plurality of cable external devices; The through hole that is complementary with the cable external device is arranged on the wire connection cavity wall; Between cable external device and the anti-explosion cable hermetically-sealed construction is set.
Said explosion-proof lithium battery group outside is that middle two of having dividing plate to separate have the main chamber of explosion separation structure and the explosion-proof cabinet of metal of wire connection cavity, and dividing plate is provided with a plurality of binding posts; Be provided with a plurality of chargeable lithium cell monomer module groups in the primary inner lumen, each single lithium battery is connected in series through the clamps roped party; Each single lithium battery creepage distance is at least more than or equal to 6 millimeters, and wire connection cavity wall arranged outside has a plurality of cable external devices; The through hole that is complementary with the cable external device is arranged on the wire connection cavity wall; The cable external device is used to connect anti-explosion battery management system, explosion-proof charging device, various explosion-proof load device.
Be provided with many anti-explosion cables one to one between said anti-explosion battery management system wire connection cavity cable external device and the explosion-proof lithium battery group cable external device; One end of anti-explosion cable is connected an end of binding post through the cable external device of wire connection cavity and the through hole on the wire connection cavity wall; The other end of anti-explosion cable is connected an end of binding post through the cable external device of the explosion-proof cabinet outer wall of lithium battery group and the through hole of sidewall; Between cable external device and the anti-explosion cable hermetically-sealed construction is set.
According to further improvement of the present invention:
Said charging contactor, fuse, the lithium battery group formation charge circuit of connecting successively;
Said lithium battery group, fuse, the discharge contactor formation discharge loop of connecting successively;
Said data acquisition module is gathered voltage, the temperature data of single lithium battery through wire harness, and the inconsistent cell that charges is implemented balanced management; Data acquisition module sends the data that collect to main control module through the data shared connection with the mode of serial communication;
Said current sensor is connected the negative pole of lithium battery group, detects the electric current of lithium battery group, and sends testing result to main control module;
Said main control module reads the information from current sensor, multi-group data acquisition module; And these information are presented on the display module, if these information do not meet the requirement that is provided with in advance, will make reports to the police handles; Main control module can detect total current, total voltage, the temperature parameter of lithium battery group; If that the lithium battery group occurs is under-voltage, overvoltage, high temperature and over current fault, then notify charging contactor/discharge contactor to break off the charge/discharge loop, whole lithium battery group is implemented to protect; Said insulation monitoring module can be leaked electricity and gets an electric shock detection electric power system.
According to further improvement of the present invention:
Said explosion-proof electrical source device possesses the anti-explosion safety defencive function; Can monitor in real time voltage, operating current, working temperature, state of insulation, the malfunction of each cell; Excessive, overtension of electric current present or low excessively, temperature are crossed high abnormal conditions in the may command use, cut off circuit and implement protection; Can alarm appear carrying out unusually to cell; Being connected successively by charging contactor, fuse, lithium battery group forms charge circuit, when detecting overtension, can cut off circuit and implement protection; Connect successively by fuse, discharge contactor and to form discharge loop and when user mode is unusual, can cut off circuit and implement to protect.
According to further improvement of the present invention: said main control module, display module, the shared 24V direct voltage of multi-group data acquisition module.
According to further improvement of the present invention: said main control module is communicated by letter with entire car controller through the CAN communication bus.
Beneficial effect of the present invention: one. whole power-supply system places in the flameproof enclosure; Even single lithium battery or lithium battery perhaps constitute other electric components of power-supply management system because of short circuit or electrical equipment spontaneous combustion generation electric spark; Can effectively not contact yet and produce gas explosion, thereby avoid the generation of major accidents such as life safety with the fuel gas (for example methane gas) below the mine.Two. power-supply management system can be gathered the temperature, voltage, electric current of single lithium battery and lithium battery group in real time and it is effectively managed, and makes single lithium battery/lithium battery be in best safe work state.
Description of drawings
Fig. 1 is a structural representation of the present invention, wherein: 1, anti-explosion battery management system; 2, explosion-proof lithium battery group; 3, dividing plate;
Fig. 2 is a systematic schematic diagram of the present invention.
Embodiment
With reference to figure 1, Fig. 1 has comprised that the anti-explosion battery management system is with explosion-proof lithium battery group and be connected with anti-explosion cable and explosion-proof group spare.
The anti-explosion battery management system comprises main chamber and wire connection cavity, is provided with dividing plate between main chamber and the wire connection cavity, and dividing plate is provided with a plurality of binding posts.
Be furnished with multi-group data acquisition module, main control module, display module, insulation monitoring module, fuse, current sensor, charging contactor, discharge contactor in the main chamber, they are connected respectively through many signal line with binding post one end separately.Wire connection cavity is outside equipped with a plurality of cable access devices, and one of them links to each other with explosion-proof car load control device; And, have on the wire connection cavity wall and a plurality of cable access devices through hole one to one.
Explosion-proof lithium battery group also comprises main chamber and wire connection cavity, also is provided with dividing plate between main chamber and the wire connection cavity.The lithium battery group places in the main chamber, and it has a plurality of single lithium battery to be in series, and the creepage distance of each single lithium battery is greater than or equal to 6 millimeters.Whole lithium battery group by clamps in main chamber.Like this, collide, thereby guaranteed the safety of lithium battery group even under the situation of explosion-proof lithium battery group and other object strikes, also can guarantee the get along well sidewall in main chamber of lithium battery group.Dividing plate is provided with a plurality of binding posts.Wire connection cavity is provided with a plurality of cable access devices; Cable access device in a part of cable access device wherein and the wire connection cavity of anti-explosion battery management system is corresponding one by one, and another part cable access device then is circumscribed with explosion-proof charging device and explosion-proof load device.
What connect anti-explosion battery management system and explosion-proof lithium battery group is many anti-explosion cables.One end of anti-explosion cable passes the hole on the wire connection cavity wall of cable access device and anti-explosion battery management system of anti-explosion battery management system, is connected on the binding post of anti-explosion battery management system; The other end passes the hole on the wire connection cavity wall of cable access device and explosion-proof lithium battery group of explosion-proof lithium battery group, is connected on the binding post of explosion-proof lithium battery group.Be provided with hermetically-sealed construction between the two ends of anti-explosion cable and the cable access device, its effect is to stop the gas of outside to get into wire connection cavity, makes total safer.These anti-explosion cables can pass to control signal such as the multi-group data acquisition module in the anti-explosion battery management system master chamber, main control module, insulation monitoring module, current sensor, charging contactor, discharge contactor and data acquisition signal explosion-proof lithium battery group and it is implemented signal transmission and Based Intelligent Control.
Referring to Fig. 2, Fig. 2 is a systematic schematic diagram of the present invention.
The operation principle of whole anti-explosion battery management system is following:
When explosion-proof lithium battery group charging or external discharge; The anti-explosion battery management system can detect monomer voltage, total current, the temperature parameter of explosion-proof lithium battery group in real time; Can these information be presented on the display module in case of necessity, the user can know these information through display module.Charging contactor and discharge contactor can be implemented protection to the overvoltage of lithium battery group, overcurrent, under-voltage, undercurrent, excess temperature.
Whole anti-explosion battery management system is following to the control and the management process of explosion-proof lithium battery group:
Form two cover loops of the present invention altogether by anti-explosion battery management system, explosion-proof lithium battery group, anti-explosion cable and accessory: charge circuit and discharge loop.Charge circuit is composed in series by charging contactor, fuse, lithium battery group; Discharge loop is composed in series by lithium battery group, fuse, discharge contactor successively.In the present embodiment, the lithium battery group is in series by the single lithium battery of 100 same specifications.Have 13 data detection modules and respectively the single lithium battery of 100 same specifications is carried out voltage and temperature detection, each data detection module can detect 8 single lithium battery voltages and temperature, and can carry out balanced management to the inconsistent cell that charges.13 data detection modules send the information of the lithium battery group that collects to main control module through serial communication.Simultaneously, be provided with current sensor in the place of the negative pole of lithium battery group, current sensor can detect the series current of lithium battery group, and current information is passed to main control module.Main control module is presented at voltage, temperature, current data on the display module, and does comparison with the data that are provided with in advance, if having unusually, then takes following measure to implement security control:
1, charging process: if main control module is found the overvoltage of lithium battery group, overcurrent, under-voltage, undercurrent, crossed temperature abnormality, then control charging contactor and break off charge circuit, the lithium battery group is implemented safeguard protection;
2, discharge process: if main control module is found the overvoltage of lithium battery group, overcurrent, under-voltage, undercurrent, crossed temperature abnormality, then control discharge contactor breaks off discharge loop, and the lithium battery group is implemented safeguard protection.
The present invention also has following method to the safeguard protection of lithium battery group:
1, in the explosion-proof electrical source management system, is provided with insulation monitoring module, can implements electric leakage and electric shock detection whole charge circuit and discharge loop;
2, in charge circuit and discharge loop, be in series with fuse, can implement the short circuit current protection.
In addition, for guaranteeing main control module, display module, multi-group data acquisition module operate as normal, their shared 24V direct currents; For other control module on the various information of whole lithium battery group and the car is shared, main control module also is circumscribed with explosion-proof car load control device and carries out the CAN communication.
The positive pole of explosion-proof lithium battery group is circumscribed with explosion-proof charging device, and the negative pole of explosion-proof lithium battery group is connected with explosion-proof load device, and main control module and explosion-proof charging device can carry out the CAN communication, and main control module and explosion-proof load device also can carry out the CAN communication.Need to prove that 100 cells and 13 data detection modules cited among the present invention are one of them embodiment.According to actual needs, can do suitable increase or minimizing to the quantity of cell and the quantity of Data Detection piece.
In sum: the present invention is achieved through machinery and electrical equipment mode to the protection of lithium battery group:
Mechanical system:
1, the anti-explosion cable through designing independently anti-explosion battery management system and explosion-proof lithium battery group and being connected them, the electric spark that can prevent electric component to occur because of spontaneous combustion, short circuit, discharge contacts with fuel gas blasts;
2,, prevent that other objects of lithium battery group from bumping against through design lithium battery group stationary fixture.
The electic protection mode:
1, adopts intelligent control method that battery pack current, voltage, temperature are implemented to detect,, then break off charge circuit or discharge loop, the lithium battery group is implemented protection if find that these data do not meet setting numerical value;
2, adopt fuse that charge circuit or discharge loop are implemented short-circuit protection;
3, adopt insulation monitoring module that the charge circuit or the loop that cuts off the power supply are implemented to leak electricity or get an electric shock and detect.
Claims (5)
1. an explosion-proof electrical source device is used for I class and II class explosion-proof environment, comprising: anti-explosion battery management system and explosion-proof lithium battery group, and connect with anti-explosion cable and explosion-proof group spare formation;
Two explosion-proof cabinets of metal that said anti-explosion battery management system outside has dividing plate to separate in the middle of being with explosion separation structure master chamber and wire connection cavity, dividing plate is provided with a plurality of binding posts; Be provided with multi-group data acquisition module, main control module, display module, insulation monitoring module, fuse, current sensor, charging contactor, discharge contactor in the primary inner lumen, they are connected respectively through many signal line with binding post one end separately; Wire connection cavity wall arranged outside has a plurality of cable external devices; The through hole that is complementary with the cable external device is arranged on the wire connection cavity wall; Between cable external device and the anti-explosion cable hermetically-sealed construction is set;
Said explosion-proof lithium battery group outside is that middle two of having dividing plate to separate have the main chamber of explosion separation structure and the explosion-proof cabinet of metal of wire connection cavity, and dividing plate is provided with a plurality of binding posts; Be provided with a plurality of chargeable lithium cell monomer module groups in the primary inner lumen, each single lithium battery is connected in series through the clamps roped party; Each single lithium battery creepage distance is at least more than or equal to 6 millimeters, and wire connection cavity wall arranged outside has a plurality of cable external devices; The through hole that is complementary with the cable external device is arranged on the wire connection cavity wall; The cable external device is used to connect anti-explosion battery management system, explosion-proof charging device, various explosion-proof load device;
Be provided with many anti-explosion cables one to one between said anti-explosion battery management system wire connection cavity cable external device and the explosion-proof lithium battery group cable external device; One end of anti-explosion cable is connected an end of binding post through the cable external device of wire connection cavity and the through hole on the wire connection cavity wall; The other end of anti-explosion cable is connected an end of binding post through the cable external device of the explosion-proof cabinet outer wall of lithium battery group and the through hole of sidewall; Between cable external device and the anti-explosion cable hermetically-sealed construction is set.
2. according to a kind of explosion-proof electrical source device described in the claim 1, be used for I class and II class explosion-proof environment, it is characterized in that:
Said charging contactor, fuse, the lithium battery group formation charge circuit of connecting successively;
Said lithium battery group, fuse, the discharge contactor formation discharge loop of connecting successively;
Said data acquisition module is gathered voltage, the temperature data of single lithium battery through wire harness, and the inconsistent cell that charges is implemented balanced management; Data acquisition module sends the data that collect to main control module through the data shared connection with the mode of serial communication;
Said current sensor is connected the negative pole of lithium battery group, detects the electric current of lithium battery group, and sends testing result to main control module;
Said main control module reads the information from current sensor, multi-group data acquisition module; And these information are presented on the display module, if these information do not meet the requirement that is provided with in advance, will make reports to the police handles; Main control module can detect total current, total voltage, the temperature parameter of lithium battery group; If that the lithium battery group occurs is under-voltage, overvoltage, high temperature and over current fault, then notify charging contactor/discharge contactor to break off the charge/discharge loop, whole lithium battery group is implemented to protect;
Said insulation monitoring module can be leaked electricity and gets an electric shock detection electric power system.
3. according to a kind of explosion-proof electrical source device described in the claim 1; Be used for I class and II class explosion-proof environment; It is characterized in that: said explosion-proof electrical source device possesses the anti-explosion safety defencive function; Can monitor in real time voltage, operating current, working temperature, state of insulation, the malfunction of each cell, excessive, overtension of electric current present or low excessively, temperature are crossed high abnormal conditions in the may command use, cut off circuit and implement protection; Can alarm appear carrying out unusually to cell; Being connected successively by charging contactor, fuse, lithium battery group forms charge circuit, when detecting overtension, can cut off circuit and implement protection; Connect successively by fuse, discharge contactor and to form discharge loop and when user mode is unusual, can cut off circuit and implement to protect.
4. according to a kind of explosion-proof electrical source device described in the claim 1, be used for I class and II class explosion-proof environment, it is characterized in that: said main control module, display module, the shared 24V direct voltage of multi-group data acquisition module.
5. according to a kind of explosion-proof electrical source device described in the claim 1, be used for I class and II class explosion-proof environment, it is characterized in that: said main control module is communicated by letter with entire car controller through the CAN communication bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120514576 CN202602308U (en) | 2011-12-12 | 2011-12-12 | Explosion-proof power supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120514576 CN202602308U (en) | 2011-12-12 | 2011-12-12 | Explosion-proof power supply apparatus |
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| CN202602308U true CN202602308U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120514576 Expired - Lifetime CN202602308U (en) | 2011-12-12 | 2011-12-12 | Explosion-proof power supply apparatus |
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| CN (1) | CN202602308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522791A (en) * | 2011-12-12 | 2012-06-27 | 深圳市德塔电动汽车科技有限公司 | Explosion-proof power supply apparatus |
-
2011
- 2011-12-12 CN CN 201120514576 patent/CN202602308U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522791A (en) * | 2011-12-12 | 2012-06-27 | 深圳市德塔电动汽车科技有限公司 | Explosion-proof power supply apparatus |
| CN102522791B (en) * | 2011-12-12 | 2014-10-08 | 深圳市德塔电动汽车科技有限公司 | Explosion-proof power supply apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Guangdong province Shenzhen City Pingshan Kengzi streets rongshou Ludeta high-tech factory 1 layer Patentee after: Shenzhen Deta Electric Automobile Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Futian District HUAFA Road No. 30 Electronic Design Institute 4 Room No. 508 Patentee before: Shenzhen Deta Electric Automobile Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |