CN104157932A - Water-circulation-heating honeycomb-structured lithium iron phosphate battery assembly - Google Patents
Water-circulation-heating honeycomb-structured lithium iron phosphate battery assembly Download PDFInfo
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- CN104157932A CN104157932A CN201410425413.4A CN201410425413A CN104157932A CN 104157932 A CN104157932 A CN 104157932A CN 201410425413 A CN201410425413 A CN 201410425413A CN 104157932 A CN104157932 A CN 104157932A
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- ferric phosphate
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- phosphate lithium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a water-circulation-heating honeycomb-structured lithium iron phosphate battery assembly which is composed of two parts: a lithium iron phosphate battery high voltage system and a temperature controlling system. The lithium iron phosphate battery high voltage system comprises a plurality of battery sets, a power supply controller, a battery box body and a fixing clamping plate. The temperature controlling system comprises a water circulating pipeline, a water tank, a water pump, a heating tube, a temperature sensor and a temperature controlling circuit. The lithium iron phosphate battery assembly is characterized in that the battery sets are formed by a plurality of battery core matrixes which are formed by arrangement of a plurality of parallel-serial connected battery cores. A high-voltage loop is formed through connection at the front and the back of the battery core matrixes through an electrically conductive metal plate. A reserved vacant space is arranged in the battery core matrixes. The water circulating pipeline is distributed throughout the vacant space. The water circulating pipeline is connected to the water tank to form a closed space. In the invention, the temperature sensor measures an environment temperature of the battery sets and powers of the water pump and the heating tube are controlled according to the environment temperature. The lithium iron phosphate battery assembly is simple in structure, is high in utilization rate of internal spaces of the battery sets and is high in structure strength.
Description
Technical field
The present invention relates to ferric phosphate lithium cell group, specifically a kind of water circulation hot type honeycomb structure ferric phosphate lithium cell assembly.
Background technology
At present, ferric phosphate lithium cell is with its superior chemical property and environment friendly and be widely used in the fields such as energy storage, electric tool, motor vehicle; Ferric phosphate lithium cell group is with its high security and long-life characteristics and be widely used in back-up source (UPS), the pulse power, peak load regulation network, startup power supply and hybrid electric vehicle etc., be different from traditional lead acid accumulator, ferric phosphate lithium cell is formed by each little ferric phosphate lithium cell core series-parallel connection, has good high temperature resistant property and explosion-proof performance.
Ferric phosphate lithium cell service behaviour at low temperatures can be affected, and zero degrees celsius charges below, and the negative pole of battery can produce lithium Zhi Jing, and Zhi Jinghui causes the short circuit of battery and battery is damaged; In addition, when under low temperature, battery charges, thermal effect increases, and operating efficiency reduces, and the capacity of guiding discharge can significantly reduce, and along with the increase capacity of cycle-index can accelerate decay, thereby shorten the useful life of ferric phosphate lithium cell group.Application number is in 201020271569.9 patent document, to propose a kind ofly by recirculated water and with the lithium battery cooling device of cool batteries shell, and this design can regulate the temperature of battery, but can not well to the uniformity of temperature, regulate; It is a kind of by the method to the heating film of battery surface wrap resistive heater that application number is that 201210113856.0 patent document proposes, it is carried out to temperature control, but due to battery core One's name is legion, packing technology is comparatively complicated, cost is higher, and the stability of its structure to be subject to the impact of membrane material and heating material larger, to the interference of battery, also cannot avoid, and except heating function, other are not conducive to battery operated effect.Ferric phosphate lithium cell itself has good resistance to elevated temperatures, the cooling device of unnecessary additional designs battery simultaneously.
Summary of the invention
The present invention is mainly for the single small volume of ferric phosphate lithium cell, in battery pack, quantity is more, if adopt close-connected mode to increase bulk density, can make the distance between each battery reduce, large on its heat radiation impact, and ferric phosphate lithium cell is poor at sub-zero charge-discharge performance, charge/discharge capacity only has the defects such as half of design load, thereby a kind of water circulation hot type honeycomb structure ferric phosphate lithium cell assembly is provided.The present invention mainly adopts honeycomb type structure to arrange, intert during this time water channel, circulating water pipeline is connected with water tank and is arranged in the structures such as temperature sensor in water tank, thereby reach in low temperature environment, increase the service life, effectively utilize battery space, rationally control the operating ambient temperature of ferric phosphate lithium cell, structural strength is high, the effect of good stability.
The technological means that the present invention adopts is as follows:
A water circulation hot type honeycomb structure ferric phosphate lithium cell assembly, is comprised of ferric phosphate lithium cell high-pressure system and two parts of temperature control system;
Described ferric phosphate lithium cell high-pressure system comprises the fixing chuck plate by a plurality of battery pack, wire, power-supply controller of electric, Battery case and fixing described Battery case, fixedly the anchor bolt of use etc.;
Described temperature control system comprises circulating water pipeline, water tank, is provided with water pump, heating tube and temperature sensor in described water tank, and described water pump, described heating tube and described temperature sensor are connected with temperature-control circuit; Described temperature-control circuit is connected with described power-supply controller of electric; It is characterized in that:
Described battery pack is comprised of the battery of a plurality of series-parallel connections (series, parallel or series connection add parallel connection) the battery core matrix forming of arranging, before and after described battery core matrix, by conductive metal sheet, be connected to form high tension loop, in described battery core matrix, be provided with reserved vacancy space, described circulating water pipeline distributes and interts in described vacancy space; Described circulating water pipeline is connected with described water tank and forms enclosure space.
Structurally the coupled structure of the formation such as circulating water pipeline, water tank and battery core matrix outside is provided with described fixing chuck plate, and fixing chuck plate is connected with Battery case, and described coupled structure is played to fixation.
In the present invention, by the program of temperature-control circuit being integrated in the middle of described power-supply controller of electric, when battery pack temperature surpasses normal range of operation, automatically open and carry out temperature adjusting.
Further, the arrangement mode of described battery is honeycomb arrangement mode.Concrete form is: battery is with the form shown in Fig. 2, successively arrange, between the battery of every layer, be closely connected, the distance that differs half cell diameter of the battery of last layer and lower one deck, and closely press close to lower one deck, in the process of arranging, there is a layer that is provided with circulating water pipeline in every alternating floor, has the layer of circulating water pipeline, every a battery, a circulating water pipeline is set.Circulating water pipeline is identical with battery diameter, is closely connected with battery.Described circulating water pipeline is evenly arranged in described battery core matrix, and cellular battery and water channel are staggered, and rationally utilizes space in battery pack.
Further, described in each, battery has two described circulating water pipelines around at least.
Further, described water tank is also provided with heat abstractor outward, and heat abstractor, with the temperature control system of refrigerating function, comprises the outer fin of installing of water tank, and the fan of installing on Battery case, adds high-temperature control function in temperature-control circuit.
Further, described temperature sensor adopts the temperature-sensitive elements such as thermocouple to feed back temperature signal.
Further, described heating tube adopts the resistance heater of exterior insulation.
Further, described circulating water pipeline adopts corrosion-resistant tubing, can adopt the materials such as pack alloy, improves structural strength and heat transfer efficiency; Described water channel plays water conservancy diversion, heat conduction and fixes two effects.
Compared with prior art, compare, the present invention has the following advantages:
1, ferric phosphate lithium cell Battery pack core of the present invention is uniformly distributed circulating water pipeline around, when battery pack temperature is during lower than normal working temperature, heater in water tank starts, guarantee that battery pack temperature is not less than its working temperature, effectively guaranteed under the ferric phosphate lithium cell group condition that externally temperature is lower, still have good charge-discharge performance, improved the service behaviour of ferric phosphate lithium cell group under cryogenic conditions, effectively extended the useful life of ferric phosphate lithium cell group under cryogenic conditions.When temperature reaches the maximum temperature of setting, water tank inner heating device quits work and effectively prevents that battery pack is because excess Temperature causes the damage of battery, has improved the fail safe that ferric phosphate lithium cell group is used, and further extends the useful life of lithium iron phosphate storage battery group.
2, the present invention is uniformly distributed circulating water pipeline around at ferric phosphate lithium cell Battery pack core, becomes honeycomb arrangement with battery cell core, can guarantee battery cell core uniform temperature fields around.
3, circulating water pipeline pipeline of the present invention form around around arrangement form can improve the intensity of whole battery pack, guarantee the safety of structure structural safety of battery pack.
The present invention is conducive to the practical and development in the future of product for the foregoing reasons.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the battery core matrix of water circulation hot type honeycomb structure ferric phosphate lithium cell assembly of the present invention and the structural representation of circulating water pipeline.
Fig. 2 is the battery core matrix of water circulation hot type honeycomb structure ferric phosphate lithium cell assembly of the present invention and the schematic diagram of arranging of circulating water pipeline.
Fig. 3 is the temperature control schematic diagram of water circulation hot type honeycomb structure ferric phosphate lithium cell assembly of the present invention.
Fig. 4 is the schematic diagram of the many battery pack of water circulation hot type honeycomb structure ferric phosphate lithium cell assembly of the present invention.
Fig. 5 is that water circulation hot type honeycomb structure ferric phosphate lithium cell assembly of the present invention is with the structural representation of heat abstractor.
Fig. 6 is that water circulation hot type honeycomb structure ferric phosphate lithium cell assembly of the present invention is with the temperature control schematic diagram of heat abstractor.
Fig. 7 is water circulation hot type honeycomb structure ferric phosphate lithium cell assembly of the present invention structural representation with cooling system while consisting of many battery pack.
In figure: 1, battery core matrix 2, circulating water pipeline 3, battery pack 4, heating tube 5, water tank 6, water pump 7, thermocouple 8, power-supply controller of electric 9, fin 10, conductive metal sheet 11, ventilating fan 12, control module 13, air inlet 14, cleaner
Embodiment
A water circulation hot type honeycomb structure ferric phosphate lithium cell assembly, is comprised of ferric phosphate lithium cell high-pressure system and two parts of temperature control system; Described ferric phosphate lithium cell high-pressure system comprises the fixing chuck plate by a plurality of battery pack, wire, power-supply controller of electric, Battery case and fixing described Battery case, fixedly the anchor bolt of use etc.; Described temperature control system comprises circulating water pipeline, water tank, is provided with water pump, heating tube and temperature sensor in described water tank, and described water pump, described heating tube and described temperature sensor are connected with temperature-control circuit; Described temperature-control circuit is connected with described power-supply controller of electric; Described battery pack is comprised of the battery of a plurality of series-parallel connections (series, parallel or series connection add parallel connection) the battery core matrix forming of arranging, before and after described battery core matrix, by conductive metal sheet, be connected to form high tension loop, in described battery core matrix, be provided with reserved vacancy space, described circulating water pipeline distributes and interts in described vacancy space; Described circulating water pipeline is connected with described water tank and forms enclosure space.Described in each, ferric phosphate lithium cell core has two described circulating water pipelines around at least.Described water channel is connected with described water tank, and described water tank is connected with water pump.Described temperature sensor adopts thermocouple.Described heating tube adopts the resistance heater of exterior insulation.It is pack alloy pipeline that described circulating water pipeline adopts corrosion-resistant tubing.
Embodiment 1
As shown in Figure 1 and Figure 2, ferric phosphate lithium cell group 3 is arranged and is formed by a plurality of battery core matrixes 1, and battery is connected by electric conducting materials such as nickel sheet or copper sheets, and outside forms fixing chuck plate by other high-strength insulating material such as engineering plastics.Space and battery joint that the circulating water pipeline 2 of temperature control is stacked through battery, cellular arrangement mode can guarantee that the side of each battery has two circulating water pipelines 2 at least.
As shown in Figure 3, circulating water pipeline 2 is through battery core matrix 1 inside, form loop, be connected with water tank 5, water pump 6, water is pumped from delivery port by water pump 6, after circulation, water is got back to water tank 5 inside from water return outlet, and it can be that the signal of telecommunication flows to control circuit by temperature inversion that circulating water pipeline 2 internal placement have thermocouple 7, and control circuit is controlled pump power according to water temperature.As shown in Figure 5,6, where necessary, can will on water tank 5, arrange fin 9, unnecessary water tank heat is delivered to outside.
Temperature-control circuit can be controlled by easy circuit board, and can be integrated in the middle of the power-supply controller of electric 8 of ferric phosphate lithium cell, on circuit board, arrange the elements such as transformer and 24v storage battery, can to control circuit, power by ferric phosphate lithium cell, when battery electric quantity is not enough, give a warning.Temperature-control circuit manages the charging process of ferric phosphate lithium cell, when ambient temperature is lower, first first to temperature control system power supply, carries out preheating, when battery pack internal temperature reaches suitable working temperature, starts to discharge and recharge normally work.
Embodiment 2
As shown in Figure 4, ferric phosphate lithium cell group is lined up side by side multiple row by a plurality of battery pack 3 and is formed, and Battery case carries out sealing thermal insulation design, in addition, as shown in Figure 7, can also be provided with cleaner 14, air inlet 13, ventilating fan 11 and control module 12 etc.By air filter 14 external compressed airs, by air inlet 13, entered, ventilating fan 11 is got rid of the hot-air in battery case by exhaust outlet, and ventilating fan 11 is closed, prevents that dust from entering.When temperature is higher, ventilating fan 11 and air inlet 13 are opened, and cold air is blown into, and hot-air is discharged; When temperature is lower, each mouthful of sealing, keeps Battery case temperature.Different according to the heating power of different model battery, can be by the number of increase and decrease circulating water pipeline, fin height, water tank size, enters, the size of return flume adjusts, and chooses suitable thermocouple position.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a water circulation hot type honeycomb structure ferric phosphate lithium cell assembly, is comprised of ferric phosphate lithium cell high-pressure system and two parts of temperature control system;
Described ferric phosphate lithium cell high-pressure system comprises the fixing chuck plate by a plurality of battery pack, wire, power-supply controller of electric, Battery case and fixing described Battery case;
Described temperature control system comprises circulating water pipeline, water tank, is provided with water pump, heating tube and temperature sensor in described water tank, and described water pump, described heating tube and described temperature sensor are connected with temperature-control circuit; Described temperature-control circuit is connected with described power-supply controller of electric;
It is characterized in that:
Described battery pack is comprised of the battery of a plurality of series-parallel connections battery core matrix forming of arranging, before and after described battery core matrix, by conductive metal sheet, be connected to form high tension loop, in described battery core matrix, be provided with reserved vacancy space, described circulating water pipeline distributes and interts in described vacancy space; Described circulating water pipeline is connected with described water tank and forms enclosure space.
2. water circulation hot type honeycomb structure ferric phosphate lithium cell assembly according to claim 1, is characterized in that: the arrangement mode of described battery is honeycomb arrangement mode, and described circulating water pipeline is evenly arranged in described battery core matrix.
3. water circulation hot type honeycomb structure ferric phosphate lithium cell assembly according to claim 2, is characterized in that: described in each, battery has two described circulating water pipelines around at least.
4. water circulation hot type honeycomb structure ferric phosphate lithium cell assembly according to claim 1, is characterized in that: described water tank is also provided with heat abstractor outward.
5. water circulation hot type honeycomb structure ferric phosphate lithium cell assembly according to claim 1, is characterized in that: described temperature sensor adopts thermocouple.
6. water circulation hot type honeycomb structure ferric phosphate lithium cell assembly according to claim 1, is characterized in that: described heating tube adopts the resistance heater of exterior insulation.
7. water circulation hot type honeycomb structure ferric phosphate lithium cell assembly according to claim 1, is characterized in that: described circulating water pipeline adopts corrosion-resistant tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425413.4A CN104157932B (en) | 2014-08-26 | 2014-08-26 | Water circulating-heating type honeycomb structure ferric phosphate lithium cell assembly |
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| CN201410425413.4A CN104157932B (en) | 2014-08-26 | 2014-08-26 | Water circulating-heating type honeycomb structure ferric phosphate lithium cell assembly |
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| CN104157932A true CN104157932A (en) | 2014-11-19 |
| CN104157932B CN104157932B (en) | 2016-08-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921006A (en) * | 2017-04-24 | 2017-07-04 | 西安科技大学 | A kind of battery thermostat and system |
| CN107666029A (en) * | 2016-07-29 | 2018-02-06 | 江苏兴云新能源有限公司 | A kind of battery bag radiating, heating system |
| CN111127747A (en) * | 2019-12-11 | 2020-05-08 | 新石器慧通（北京）科技有限公司 | Unmanned wagon with heating function |
| CN111200173A (en) * | 2018-11-20 | 2020-05-26 | 吉林大学 | Novel power battery pack heat dissipation device and heat dissipation method |
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2014
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Patent Citations (8)
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| JPH11118284A (en) * | 1997-10-15 | 1999-04-30 | Rinnai Corp | Heat utilizing system utilizing hydrogen absorbing alloy |
| CN101263629A (en) * | 2005-09-13 | 2008-09-10 | 法雷奥电机设备公司 | Compact electric power supply device for a motor vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666029A (en) * | 2016-07-29 | 2018-02-06 | 江苏兴云新能源有限公司 | A kind of battery bag radiating, heating system |
| CN106921006A (en) * | 2017-04-24 | 2017-07-04 | 西安科技大学 | A kind of battery thermostat and system |
| CN111200173A (en) * | 2018-11-20 | 2020-05-26 | 吉林大学 | Novel power battery pack heat dissipation device and heat dissipation method |
| CN111127747A (en) * | 2019-12-11 | 2020-05-08 | 新石器慧通（北京）科技有限公司 | Unmanned wagon with heating function |
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| CN104157932B (en) | 2016-08-24 |
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