A kind of portable power accumulator box
Technical field
The invention belongs to new forms of energy and battery manufacture technical field, be specifically related to a kind of portable power accumulator box.
Background technology
China's industry high speed fast development in recent years, the century-old industrial age that just can complete need be used by developed capitalist countries, China only just enjoys Liao“ world's factory with short many decades " good reputation, achievement is gratifying, but thing followed energy problem and environmental problem highlight day by day, the worry of having to induce one.Energy aspect, the fossil energy exhaustion that the whole world is limited, along with industrial expansion, energy problem becomes the most important thing that various countries' superstructure must be considered day by day, various countries scientist, enterprise tax one's ingenuity and seek the energy of recyclable regenerative for this reason, to meet industrial Ti, China of high speed development day by day, spare no high price especially to encourage all trades and professions to seek the alternative energy source of the biochemical energy, to tackle the interdependency that reduces external crude oil; Environment aspect, fossil energy, when this large machine of promotion industrial system moves forward, produces a large amount of CO
2and the waste gas such as sulfur-bearing, pollute day by day seriously, progressively cause showing great attention to of the people of various countries, China becomes the large CO of the first in the world gradually
2the country of discharge.
Promoting the use of the new forms of energy vehicles, promote the use of the strategic choice of accumulation power supply ,Shi China energy-saving and emission-reduction, is also an extremely urgent great achievement of work is in the contemporary generation profit is in the future thousands of years.But battery develops into today as the Major Systems element of dynamic power system and accumulation power supply system, still exist sealing, the heat production of power and energy-storage battery uneven, be difficult for heat radiation etc. technical bottleneck, directly have influence on the serviceability of electric motor car and power consumption equipment.Thereby the research and development of new battery case can normally be used under the operating mode of adverse circumstances for battery pack, and to have very long useful life be essential.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of portable power accumulator box addressing the above problem.
The present invention for the technical scheme that realizes the problems referred to above and adopt is:
A kind of portable power accumulator box, it comprises a casing, in described casing, be provided with a battery pack, by a plurality of cells, the mode by series connection connects to form described battery pack, described cell, it comprises a single battery case, and the battery core being arranged in single battery case, described battery core, it comprises three aluminium bags, four radiating aluminium sheets, three battery pole ears, bond plies and are shunk glue intestines, and described aluminium bag is connected with battery pole ear; Described aluminium bag is as sandwich, and radiating aluminium sheet is as pod membrane, and both compartments arrange, and re-use bond plies, neat and stacking-type bonding, and finally use is shunk glue intestines and is fixed.
The bottom of described casing is provided with a heat exchanger.
Between described battery pole ear, by mode in parallel, connect.
Described single battery case, its integral type member for being prepared by PC+ABC material, its both sides are provided with a plurality of button bits, a plurality of button hole corresponding with button bit.
It also comprises a plurality of copper braces, and described copper brace is connected with battery pole ear, between described cell, by copper brace, is realized and being electrically connected.
It also comprises a plurality of copper current-conducting pieces, and described copper current-conducting piece is connected with battery pole ear, described single battery case, and its top is arranged with the through hole passing for copper current-conducting piece, and the screw hole penetrating for screw.
Described single battery case, its bottom is provided with a position, hole passing for radiating aluminium sheet, and described radiating aluminium sheet is connected with heat exchanger.
Described single battery case, the top of its side is also provided with a connecting hole passing for copper brace.
Described single battery case, its inside is provided with a fixing blend stop for battery core.
The present invention adopts the radiating aluminium sheet of conductive coefficient higher density suitable (thickness range is at 0.1~0.5mm) that aluminium bag two sides is close to and is wrapped, radiating aluminium sheet heat radiation energy effectively reduces battery in the temperature discharging and recharging during the course, thereby make the life-span of battery pack longer, service efficiency is higher.
Single battery case of the present invention, its integral type member for being prepared by PC+ABC material, it is better that described PC (Merlon)+ABC material (acrylonitrile-butadiene-styrene copolymer) has combination property, impact strength is higher, chemical stability, a series of advantage such as electrical property is good, high temperature resistant, compare traditional aluminium pot design, make portable battery pack lighter.
Also have, single battery case of the present invention, it uses button bit to connect, because cell is combined to form battery pack by the mode of series connection, need to cell is reverse, so being designed to negative and positive, staggers button bit, by such design, make the tighter of cell button, battery pack fixed effect is better.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of battery core of the present invention;
Fig. 2 is the main TV structure schematic diagram of single battery case of the present invention;
Fig. 3 is the side-looking structural representation of single battery case of the present invention;
Fig. 4 is the plan structure schematic diagram of single battery case of the present invention;
Fig. 5 is the plan structure schematic diagram of cell of the present invention;
Fig. 6 is the main TV structure schematic diagram of battery pack of the present invention;
Fig. 7 is fundamental diagram of the present invention;
Fig. 8 is the battery pack 15A when charging variations in temperature chart without radiating aluminium sheet;
Variations in temperature chart when Fig. 9 is battery pack 15A charging of the present invention;
Figure 10 is for being variations in temperature chart without the battery power discharge of radiating aluminium sheet;
Figure 11 is that battery power discharge of the present invention is variations in temperature chart;
Wherein:
1. battery pole ear 2. aluminium bag 3. radiating aluminium sheets
4. blend stop 5. single battery case 6. button bits
7. button hole 8. connecting hole 9. positions, hole
10. through hole 11. screw hole 12. battery pack
13. heat exchangers
Embodiment
Referring to Fig. 1~Figure 11, portable power accumulator box provided by the invention, it comprises a casing, in described casing, be provided with a battery pack 12, by a plurality of cells, the mode by series connection connects to form described battery pack 12, described cell, it comprises a single battery case, and the battery core being arranged in single battery case, described battery core, it comprises three aluminium bags, and four radiating aluminium sheets, three battery pole ears, bond plies and are shunk glue intestines, and described aluminium bag is connected with battery pole ear; Described aluminium bag is as sandwich, and radiating aluminium sheet is as pod membrane, and both compartments arrange, and re-use bond plies, neat and stacking-type bonding, and finally use is shunk glue intestines and is fixed.
The bottom of described casing is provided with a heat exchanger 13.
Between described battery pole ear, by mode in parallel, connect.
Described single battery case, its integral type member for being prepared by PC+ABC material, its both sides are provided with a plurality of button bits, a plurality of button hole corresponding with button bit.
It also comprises a plurality of copper braces, and described copper brace is connected with battery pole ear, between described cell, by copper brace, is realized and being electrically connected.
It also comprises a plurality of copper current-conducting pieces, and described copper current-conducting piece is connected with battery pole ear, described single battery case, and its top is arranged with the through hole passing for copper current-conducting piece, and the screw hole penetrating for screw.
Described single battery case, its bottom is provided with a position, hole passing for radiating aluminium sheet, and described radiating aluminium sheet is connected with heat exchanger 13.
Described single battery case, the top of its side is also provided with a connecting hole passing for copper brace.Described single battery case, its inside is provided with a fixing blend stop for battery core.
The heat that power and energy-storage battery produce in charge and discharge process is mainly from electric reaction heat, and the Joule heat that electrode initiatively polarizes heat and produces due to the internal resistance of cell has provided the quantitative computing formula of above-mentioned 3 kinds of heats below.
During battery charging, absorb heat, during electric discharge, exothermic reaction heat is:
Q
r=1.036×10
-2Q
1I (1)
Wherein, Q
1for chemical reaction heat, unit K J/mol; I is charging and discharging currents;
Can be by polarization resistance R
pthe polarization heat representing is:
Q
p=I
2R
P (2)
By battery nurse internal resistance difficult to understand R
ethe heat lug heat producing is:
Q
e=I
2R
e (3)
Total internal resistance R of battery
t=R
p+ R
ethe total amount of heat producing in discharge process is:
Q
t=Q
r+Q
p+Q
e=1.036×10
-2Q
1I+I
2R
t (4)
In order to verify the written or printed documents beneficial effect of the invention, we have carried out the temperature test discharging and recharging of battery pack 12:
Test condition:
Two battery pack: the battery pack of a radiating aluminium sheet, a battery pack that there is no radiating aluminium sheet;
Measuring current: be charged as 15A, discharge for 110A;
Referring to Fig. 7, without battery pack 15A when charging of radiating aluminium sheet, the temperature data form of its battery cell is as shown in table 1 below:
Table 1
Referring to Fig. 8, during battery pack 15A charging of the present invention, the temperature data form of its battery cell is as follows
Shown in table 2:
Table 2
By data, drawn, 15A charging current is the normal charging current of using of battery pack, can find out that the temperature of whole Battery pack is not high, and the temperature while therefore charging is little on the impact of whole Battery pack.There is the temperature rise ratio of radiating aluminium sheet without few 5.2 degree of temperature rise of radiating aluminium sheet.
Referring to Fig. 9, during without the battery power discharge of radiating aluminium sheet, the temperature data form of its battery cell is as shown in table 3 below:
Table 3
Referring to Figure 10, during battery power discharge of the present invention, the temperature data form of its battery cell is as shown in table 4 below:
Table 4
The present invention adopts the radiating aluminium sheet of conductive coefficient higher density suitable (thickness range is at 0.1~0.5mm) that aluminium bag two sides is close to and is wrapped, radiating aluminium sheet heat radiation energy effectively reduces battery in the temperature discharging and recharging during the course, thereby make the life-span of battery pack longer, service efficiency is higher.
Single battery case of the present invention, its integral type member for being prepared by PC+ABC material, it is better that described PC (Merlon)+ABC material (acrylonitrile-butadiene-styrene copolymer) has combination property, impact strength is higher, chemical stability, a series of advantage such as electrical property is good, high temperature resistant, compare traditional aluminium pot design, make portable battery pack lighter.
Also have, single battery case of the present invention, it uses button bit to connect, because cell is combined to form battery pack by the mode of series connection, need to cell is reverse, so being designed to negative and positive, staggers button bit, by such design, make the tighter of cell button, battery pack fixed effect is better.
The present invention is not limited to above-mentioned execution mode, and all employings structure similar to the present invention realizes all modes of the object of the invention, all within protection scope of the present invention.