CN101944642A - Battery device and battery containing device - Google Patents
Battery device and battery containing device Download PDFInfo
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- CN101944642A CN101944642A CN2010102882982A CN201010288298A CN101944642A CN 101944642 A CN101944642 A CN 101944642A CN 2010102882982 A CN2010102882982 A CN 2010102882982A CN 201010288298 A CN201010288298 A CN 201010288298A CN 101944642 A CN101944642 A CN 101944642A
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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
Abstract
The invention provides a battery device comprising a plurality of batteries, the plurality of parallel-connection batteries form parallel-connection battery sets, and the plurality of parallel-connection battery sets are connected with each other in series. In the technical scheme, the plurality of batteries are connected in series after being connected in parallel so that the required voltage and current can be flexibly formed. The invention also provides a battery containing device. By adopting the technical scheme, the invention can realize a battery device with better performance and longer service life and a battery containing device capable of flexibly placing batteries.
Description
Technical field
The present invention relates to battery technology, in particular to a kind of cell apparatus and a kind of battery accommodating apparatus.
Background technology
Be widely used in the battery on the electric bicycle in the market, the overwhelming majority is a lead-acid battery, because the lead-acid battery environmental pollution is big especially, so a kind of novel cell apparatus of demand substitutes lead-acid battery on the market.
Because the material that lithium ion battery does not have contaminated environment, and the lithium ion battery of identical weight is compared with lead-acid battery, therefore many (generally are lead-acid battery 2～3 times) that the Capacity Ratio lead-acid battery of lithium ion battery is high adopt lithium ion battery to replace lead-acid battery to become the trend of Future Development in electric motor car.
Based on present power lithium-ion battery technology and manufacturing technology level, performance difference between the single-unit lithium ion battery is objective reality in whole life cycle, this may cause the whole battery group collapse with regard to having caused in the secondary battery the unbalanced performance that influences the entire lithium ion battery group owing to the capacity of a certain joint or a few joint lithium ion batteries under serious situation.Simultaneously, in the matrix battery pack that is combined into by the single-unit lithium ion battery, the capacity that causes owing to power battery technology and manufacturing technology level and the difference of various performances, make the matrix battery pack in use cause some lithium ion battery to overcharge easily or cross and put, and putting can appear owing to fill or owing in the other lithium ion battery, so just cause the difference between the single lithium ion battery increasing, can not use until whole large matrix battery pack.The life-span of large matrix battery is shortened greatly.
Therefore; the device of a kind of alternative lead-acid battery newly of demand; can adopt the battery pack that forms by the connection in series-parallel lithium ion battery; and can carry out capacity equilibrium to wherein each battery and handle; eliminate the capacity volume variance of the lithium ion battery that causes owing to power battery technology and manufacturing technology level, simultaneously also will be when batteries charging or discharge, wherein single-unit lithium ion battery is carried out overvoltage or under-voltage protection; and overcurrent and overheat protector, to prolong the life-span of cell apparatus.
Summary of the invention
Technical problem to be solved by this invention is; a kind of new protected mode for battery set charge/discharge is provided; can solve following problem one of at least: the device of a kind of new alternative lead-acid battery of demand; can adopt the battery pack that forms by the connection in series-parallel lithium ion battery; and can carry out capacity equilibrium to wherein each battery and handle; eliminate the capacity volume variance of the lithium ion battery that causes owing to power battery technology and manufacturing technology level; simultaneously also will be when batteries charging or discharge; wherein single-unit lithium ion battery is carried out overvoltage or under-voltage protection; and overcurrent and overheat protector, to prolong the life-span of cell apparatus.
In view of this, the invention discloses a kind of cell apparatus, comprising: a plurality of batteries, the battery of a plurality of parallel connections forms the batteries in parallel connection group, series connection mutually between a plurality of described batteries in parallel connection groups.In this technical scheme, a plurality of batteries can be combined into required voltage, electric current neatly by back series connection in parallel earlier.
In technique scheme, preferably, also comprise: the equalizing resistance network, comprise a plurality of resistance, be connected with described a plurality of batteries, have a resistance at least between any two batteries in each described batteries in parallel connection group, with the capacity of the battery in balanced each described batteries in parallel connection group.In this technical scheme, the equalizing resistance network is realized the connection of a plurality of batteries, and can carry out equilibrium to the capacity of each battery by resistance.
In technique scheme, preferably, have conductive contact piece in the described equalizing resistance network, described equalizing resistance network connects each battery in described a plurality of battery by described conductive contact piece.
In technique scheme, preferably, described conductive contact piece is the V-type shell fragment, wherein, an end of described V-type shell fragment has plumb joint, is welded on the described equalizing resistance network, the other end of described V-type shell fragment has circular protrusions, contacts with the electrode of described a plurality of batteries.In this technical scheme, the V-type shell fragment has guaranteed the electrical communication between a plurality of batteries well.
In technique scheme, preferably, described contact is tower power spring, described tower power spring is the lead that is coiled into spiral, and the radius of described both helical ends does not wait, and at the bigger end of radius, the end of described lead is welded on the described equalizing resistance network as plumb joint.In this technical scheme, tower power spring has guaranteed the electrical communication between a plurality of batteries well.
In technique scheme, preferably, have in the described equalizing resistance network with described a plurality of batteries in the corresponding fuse of each battery, described fuse disconnects when the electric current that bears above predetermined value.In this technical scheme, use fuse can prevent that excessive electric current from flowing out or flow into, and avoids battery is caused damage from battery.
In technique scheme, preferably, the rated current of above-mentioned fuse is 6.3A, and blowout current is 12.6A.
In technique scheme, preferably, also comprise: charge-discharge protection circuit, be connected with described a plurality of batteries, described a plurality of batteries are implemented charge and discharge protecting.In this technical scheme, charge-discharge protection circuit detects each battery, and protects with situations such as the overvoltage that prevents battery, under-voltage, overcurrent, excess temperatures and take place.
In technique scheme, preferably, described charge-discharge protection circuit comprises: voltage detecting circuit, be connected to described a plurality of battery, and detect the voltage of each battery in described a plurality of battery, and be input to central control unit; Described central control unit is connected to described voltage detecting circuit, according to described voltage, determines whether to stop using two-way gate-controlled switch that described a plurality of batteries are carried out charge or discharge.In this technical scheme, when the electric voltage exception of battery, in time stop charge or discharge, with the protection cell apparatus to cell apparatus.
In technique scheme; preferably; described charge-discharge protection circuit also comprises: temperature sensing circuit; be connected between described a plurality of battery and the described central control unit; detect the temperature of each battery in described a plurality of battery, and be input to described central control unit, wherein; described central control unit determines whether to make described a plurality of battery to stop discharge according to described temperature.In this technical scheme, when the temperature anomaly of battery, in time make cell apparatus stop discharge, with the protection cell apparatus.
In technique scheme; preferably; described charge-discharge protection circuit also comprises: current detection circuit; be connected between described a plurality of battery and the described central control unit; detect the electric current of described a plurality of battery outputs, and be input to described central control unit, wherein; described central control unit is according to described electric current, and the electric current that described a plurality of batteries are exported limits.In this technical scheme, when the current anomaly that cell apparatus is imported out, the size of timely Control current is with the protection cell apparatus.
In technique scheme; preferably, described charge-discharge protection circuit also comprises: power control circuit is connected to described CPU; by described central control unit out-put supply signal, to start or stop of the detection of described voltage detecting circuit to described a plurality of batteries.In this technical scheme, when cell apparatus did not use, charge-discharge protection circuit did not detect cell apparatus, to save the electric energy of cell apparatus.
In technique scheme, preferably, also comprise: housing, described a plurality of batteries are arranged in described housing, and each battery can be placed in the described housing independently, or is shifted out from described housing.In this technical scheme, battery and housing all can be selected flexibly, with the combination of the demand of arranging in pairs or groups out.
In technique scheme, preferably, described housing comprises: upper cover plate is positioned at the top of described housing; Lower cover is positioned at described lower part of frame; Fixed frame between described upper cover plate and lower cover, is used to hold described a plurality of battery.
In technique scheme, preferably, described equalizing resistance network is arranged in described upper cover plate and described lower cover, and described charge-discharge protection circuit is arranged in described upper cover plate.
In technique scheme, preferably, have a plurality of battery holes of laying that form by the self-contained battery grid in the described fixed frame, be used to hold described a plurality of battery.
In technique scheme, preferably, described self-contained battery grid laterally or vertically are placed in the described fixed frame.In this technical scheme, the different settings of self-contained battery grid can make battery place flexibly.
In technique scheme, preferably, described battery is a lithium ion battery.In this technical scheme, because lithium ion battery does not have the material of contaminated environment, and compare with lead-acid battery at the lithium ion battery of identical weight, high of the Capacity Ratio lead-acid battery of lithium ion battery make that the performance of cell apparatus is better, the life-span is longer more.
The invention also discloses a kind of battery accommodating apparatus, be used to hold a plurality of batteries, comprising: upper cover plate is positioned at the top of described battery accommodating apparatus; Lower cover is positioned at the bottom of described battery accommodating apparatus; Fixed frame between described upper cover plate and described lower cover, holds described a plurality of battery.
In technique scheme, preferably, have a plurality of battery holes of laying that form by the self-contained battery grid in the described fixed frame, hold described a plurality of battery.
In technique scheme, preferably, described self-contained battery grid laterally or vertically are placed in the described fixed frame.In this technical scheme, the different settings of self-contained battery grid can make battery place flexibly.
In technique scheme, preferably, has air vent hole on the described self-contained battery grid.
In technique scheme, preferably, described a plurality of battery holes of laying are arranged by matrix form.
In technique scheme, preferably, lay battery hole by positive delta arrangement for adjacent in twos three.
In technique scheme, preferably, have heater in the described fixed frame, make the interior temperature maintenance of described fixed frame at predetermined temperature.In this technical scheme, heater can make battery work under the best temperature of its performance.
In technique scheme, preferably, has the space of predetermined in the described upper cover plate, to hold the charge-discharge protection circuit that is applied to described a plurality of batteries.
In technique scheme, preferably, all have bolt hole in described upper cover plate, described lower cover, the described fixed frame, and use bolt described upper cover plate, described lower cover, described fixed frame to be connected to each other by described bolt hole.
In technique scheme, preferably, all have in described upper cover plate, the described lower cover laterally and/or the reinforcement of vertically arranging.In this technical scheme, reinforcement makes battery accommodating apparatus more firm.
In technique scheme, preferably, have bolt hole on the described reinforcement, and use bolt to be fixed on described upper cover plate or the lower cover by the equalizing resistance network that described bolt hole will be applied to described a plurality of batteries.
According to technique scheme, can realize a kind of cell apparatus, compare lead-acid battery, performance is better, the life-span is longer, can also realize a kind of battery accommodating apparatus, can independently be provided with to adapt to the battery of its use.
Description of drawings
Fig. 1 is the schematic diagram of cell apparatus according to an embodiment of the invention;
Fig. 2 is the schematic diagram of battery accommodating apparatus according to an embodiment of the invention;
Fig. 3 A is respectively the vertical view that is connected and the end view of a plurality of batteries in the cell apparatus according to an embodiment of the invention with Fig. 3 B;
Fig. 4 is the schematic diagram of the equalizing resistance network in the cell apparatus according to an embodiment of the invention;
Fig. 5 is the schematic diagram of the charge-discharge protection circuit in the cell apparatus according to an embodiment of the invention;
Fig. 6 A and Fig. 6 B are the schematic diagrames of the V-type shell fragment that uses in the cell apparatus according to an embodiment of the invention;
Fig. 7 is the schematic diagram of the tower power spring that uses in the cell apparatus according to an embodiment of the invention;
Fig. 8 A and Fig. 8 B are respectively the front view and the rear view of the upper cover plate of battery accommodating apparatus according to an embodiment of the invention;
Fig. 9 is the schematic diagram of the fixed frame of battery accommodating apparatus according to an embodiment of the invention;
Figure 10 is the schematic diagram of the self-contained battery grid of battery accommodating apparatus according to an embodiment of the invention;
Figure 11 is the schematic diagram of the self-contained battery grid of battery accommodating apparatus according to an embodiment of the invention;
Figure 12 is the schematic diagram of the lower cover of battery accommodating apparatus according to an embodiment of the invention;
Figure 13 is the overall schematic of cell apparatus according to an embodiment of the invention.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with the drawings and specific embodiments.
Set forth a lot of details in the following description so that fully understand the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following public specific embodiment.
Fig. 1 is the schematic diagram according to cell apparatus of the present invention.
As shown in Figure 1, the invention provides a kind of cell apparatus, comprising: a plurality of batteries 102, the battery of a plurality of parallel connections forms the batteries in parallel connection group, series connection mutually between a plurality of described batteries in parallel connection groups.In this technical scheme, a plurality of batteries can be combined into required voltage, electric current neatly by back series connection in parallel earlier.
In technique scheme, also comprise: the equalizing resistance network, comprise a plurality of resistance, be connected with described a plurality of batteries 102, has a resistance at least between any two batteries in each described batteries in parallel connection group, with the capacity of the battery in balanced each described batteries in parallel connection group.In this technical scheme, the equalizing resistance network is realized the connection of a plurality of batteries, and can carry out equilibrium to the capacity of each battery by resistance.
In technique scheme, have conductive contact piece in the described equalizing resistance network, described equalizing resistance network connects each battery in described a plurality of battery 102 by described conductive contact piece.
In technique scheme, described conductive contact piece is the V-type shell fragment, wherein, one end of described V-type shell fragment has plumb joint, be welded on the described equalizing resistance network, the other end of described V-type shell fragment has circular protrusions, contacts with the electrode of described a plurality of batteries 102.In this technical scheme, the V-type shell fragment has guaranteed the electrical communication between a plurality of batteries well.
In technique scheme, described contact is tower power spring, and described tower power spring is the lead that is coiled into spiral, the radius of described both helical ends does not wait, and at the bigger end of radius, the end of described lead is welded on the described equalizing resistance network as plumb joint.In this technical scheme, tower power spring has guaranteed the electrical communication between a plurality of batteries well.
In technique scheme, have in the described equalizing resistance network with described a plurality of batteries 102 in the corresponding fuse of each battery, described fuse disconnects when the electric current that bears above predetermined value.In this technical scheme, use fuse can prevent that excessive electric current from flowing out or flow into, and avoids battery is caused damage from battery.
In technique scheme, the rated current of above-mentioned fuse is 6.3A, and blowout current is 12.6A.
In technique scheme, also comprise: charge-discharge protection circuit, be connected with described a plurality of batteries 102, described a plurality of batteries 102 are implemented charge and discharge protecting.In this technical scheme, charge-discharge protection circuit detects each battery, and protects with situations such as the overvoltage that prevents battery, under-voltage, overcurrent, excess temperatures and take place.
In technique scheme, described charge-discharge protection circuit comprises: voltage detecting circuit, be connected to described a plurality of battery 102, and detect the voltage of each battery in described a plurality of battery 102, and be input to central control unit; Described central control unit is connected to described voltage detecting circuit, according to described voltage, determines whether to stop using two-way gate-controlled switch that described a plurality of batteries 102 are carried out charge or discharge.In this technical scheme, when the electric voltage exception of battery, in time stop charge or discharge, with the protection cell apparatus to cell apparatus.
In technique scheme; described charge-discharge protection circuit also comprises: temperature sensing circuit; be connected between described a plurality of battery 102 and the described central control unit; detect the temperature of each battery in described a plurality of battery 102; and be input to described central control unit; wherein, described central control unit determines whether to make described a plurality of battery 102 to stop discharge according to described temperature.In this technical scheme, when the temperature anomaly of battery, in time make cell apparatus stop discharge, with the protection cell apparatus.
In technique scheme; described charge-discharge protection circuit also comprises: current detection circuit; be connected between described a plurality of battery 102 and the described central control unit; detect the electric current of described a plurality of battery 102 outputs; and be input to described central control unit; wherein, described central control unit is according to described electric current, and the electric current that described a plurality of batteries 102 are exported limits.In this technical scheme, when the current anomaly that cell apparatus is imported out, the size of timely Control current is with the protection cell apparatus.
In technique scheme; described charge-discharge protection circuit also comprises: power control circuit; be connected to described CPU, by described central control unit out-put supply signal, to start or stop of the detection of described voltage detecting circuit to described a plurality of batteries 102.In this technical scheme, when cell apparatus did not use, charge-discharge protection circuit did not detect cell apparatus, to save the electric energy of cell apparatus.
In technique scheme, also comprise: housing, described a plurality of batteries 102 are arranged in described housing, and each battery can be placed in the described housing independently, or is shifted out from described housing.In this technical scheme, battery and housing all can be selected flexibly, with the combination of the demand of arranging in pairs or groups out.
In technique scheme, described housing comprises: upper cover plate is positioned at the top of described housing; Lower cover is positioned at described lower part of frame; Fixed frame between described upper cover plate and lower cover, is used to hold described a plurality of battery 102.
In technique scheme, described equalizing resistance network is arranged in described upper cover plate and described lower cover, and described charge-discharge protection circuit is arranged in described upper cover plate.
In technique scheme, have a plurality of battery holes of laying that form by the self-contained battery grid in the described fixed frame, be used to hold described a plurality of battery 102.
In technique scheme, described self-contained battery grid laterally or vertically are placed in the described fixed frame.In this technical scheme, the different settings of self-contained battery grid can make battery place flexibly.
In technique scheme, described battery is a lithium ion battery.In this technical scheme, because lithium ion battery does not have the material of contaminated environment, and compare with lead-acid battery at the lithium ion battery of identical weight, high of the Capacity Ratio lead-acid battery of lithium ion battery make that the performance of cell apparatus is better, the life-span is longer more.
Fig. 2 is the schematic diagram according to battery accommodating apparatus of the present invention.
As shown in Figure 2, the invention also discloses a kind of battery accommodating apparatus, be used to hold a plurality of batteries, comprising: upper cover plate 202 is positioned at the top of described battery accommodating apparatus; Lower cover 204 is positioned at the bottom of described battery accommodating apparatus; Fixed frame 206 between described upper cover plate 202 and described lower cover 204, holds described a plurality of battery.
In technique scheme, have a plurality of battery holes of laying that form by the self-contained battery grid in the described fixed frame 206, hold described a plurality of battery.
In technique scheme, described self-contained battery grid laterally or vertically are placed in the described fixed frame 206.In this technical scheme, the different settings of self-contained battery grid can make battery place flexibly.
In technique scheme, has air vent hole on the described self-contained battery grid.
In technique scheme, described a plurality of battery holes of laying are arranged by matrix form.
In technique scheme, lay battery hole by positive delta arrangement for adjacent in twos three.
In technique scheme, have heater in the described fixed frame 206, make temperature maintenance in the described fixed frame 206 at predetermined temperature.In this technical scheme, heater can make battery work under the best temperature of its performance.
In technique scheme, has the space of predetermined in the described upper cover plate 202, to hold the charge-discharge protection circuit that is applied to described a plurality of batteries.
In technique scheme, all have bolt hole in described upper cover plate 202, described lower cover 204, the described fixed frame 206, and use bolt described upper cover plate 202, described lower cover 204, described fixed frame 206 to be connected to each other by described bolt hole.
In technique scheme, all have in described upper cover plate 202, the described lower cover 204 laterally and/or the reinforcement of vertically arranging.In this technical scheme, reinforcement makes battery accommodating apparatus more firm.
In technique scheme, have bolt hole on the described reinforcement, and use bolt to be fixed on described upper cover plate 202 or the lower cover 204 by the equalizing resistance network that described bolt hole will be applied to described a plurality of batteries.
Fig. 3 A is respectively the vertical view that is connected and the end view of a plurality of batteries in the cell apparatus according to an embodiment of the invention with 3B.
What use in the cell apparatus in the present embodiment is lithium ion battery.Lithium ion battery adopts matrix connected mode (carrying out 4 strings 10 also as 40 batteries), on arranging, and the electrode direction unanimity of battery-arrangements in parallel, and the series connected battery orientation is S-shaped, shown in Fig. 3 A and Fig. 3 B.Series connected battery quantity many more (among Fig. 3 A transversely arranged battery many more), then the voltage of cell apparatus is big more, number of batteries in parallel many more (battery of vertically arranging among Fig. 3 A is many more), then the capacity of cell apparatus is big more.
Fig. 4 is the schematic diagram of the equalizing resistance network in the cell apparatus according to an embodiment of the invention.
What use in the cell apparatus in the present embodiment is lithium ion battery.Based on present power lithium-ion battery technology and manufacturing technology level, performance difference between the single battery is objective reality in its whole life cycle, this may cause the collapse of entire cell device with regard to having caused in the cell apparatus owing to the unbalanced performance that influences the entire cell device of a certain joint or a few batteries capacity under serious situation.For this reason, we will carry out equilibrium treatment to the capacity of the lithium ion battery in the cell apparatus.As shown in Figure 4, employing equalizing resistance network connects the lithium ion battery of one group of parallel connection, by connect resistance between lithium ion battery, with the difference of balancing battery capacity.
Fig. 5 is the schematic diagram of the charge-discharge protection circuit in the cell apparatus according to an embodiment of the invention.
What use in the cell apparatus in the present embodiment is lithium ion battery.In view of the overcharging of lithium ion battery, cross the ability of putting with overcurrent and excess temperature much smaller than lead-acid battery, therefore recited abovely overcharge, cross and put and any generation of overcurrent and excess temperature, the capital causes the damage of lithium ion battery, even makes the integral body collapse of the battery pack in the entire cell device.At this problem, as shown in Figure 5, a plurality of lithium ion batteries in the cell apparatus have been increased the single-unit lithium ion battery is overcharged, crosses and to put the charge-discharge protection circuit of protecting with overcurrent and excess temperature.Wherein, voltage detecting circuit 502 detects the voltage of single battery, and central control unit 508 confirms whether use two-way gate-controlled switch 510 to stop the charge or discharge of the battery pack in the cell apparatus according to detected voltage; Current detection circuit 504 detects the electric current of the battery pack output in the cell apparatus, and central control unit 508 confirms whether the output current size is limited according to detected electric current; Temperature sensing circuit 506 detects the temperature of cell apparatus, and whether central control unit 508 confirms to make the battery pack in the described cell apparatus to stop discharge according to detected temperature.Power control circuit 512 can be controlled central control unit 508 and send power supply signal, to stop the detection of voltage detecting circuit 502, current detection circuit 504,506 pairs of cell apparatus of temperature sensing circuit, can not use the time to economize the electric energy of battery in the cell apparatus at cell apparatus.Charge-discharge protection circuit in the present embodiment can protect battery to avoid damaging effectively, prolongs the useful life of single-unit lithium ion battery, has also prolonged the useful life of entire cell device simultaneously.
Fig. 6 A and Fig. 6 B are the schematic diagrames of the V-type shell fragment that uses in the cell apparatus according to an embodiment of the invention.
In entire cell Design of device process, most important, also be the most difficult be exactly the design of contact, its quality has determined the quality of electrical communication between the battery.Shown in Fig. 6 A and 6B, an end of V-type shell fragment has plumb joint 602, is welded on the equalizing resistance network, and the other end of V-type shell fragment has circular protrusions 604, contacts with the electrode of a plurality of batteries.
Fig. 7 is the schematic diagram of the tower power spring that uses in the cell apparatus according to an embodiment of the invention.
As shown in Figure 7, be the schematic diagram of the tower power spring that uses in the present embodiment.Tower power spring is the lead 702 that is coiled into spiral, and the radius of both helical ends does not wait, and at the bigger end of radius, the end of lead 702 is welded on the equalizing resistance network as plumb joint.By using tower power spring, guaranteed the electrical communication between a plurality of batteries well.
Fig. 8 A and 8B are respectively the front view and the rear view of the upper cover plate of battery accommodating apparatus according to an embodiment of the invention.
Shown in Fig. 8 A and 8B, the upper cover plate of the battery accommodating apparatus in the present embodiment has positive terminal 802 and negative terminal 804, is respectively applied for the positive pole and the negative pole of drawing the battery pack that is contained in battery accommodating apparatus inside.Have bolt hole 806 on the edge of upper cover plate, be used for by using screw to connect the fixed frame of battery accommodating apparatus.The inside of upper cover plate has reinforcement 808, makes upper cover plate more firm.The space that also has predetermined in the upper cover plate is to hold the charge-discharge protection circuit that is applied to battery pack.
Fig. 9 is the schematic diagram of the fixed frame of battery accommodating apparatus according to an embodiment of the invention.
As shown in Figure 9, has the bolt hole 902 that is used for upper cover plate and lower cover on the fixed frame in the present embodiment.The inside of fixed frame has self-contained battery grid 904, has air vent hole 906 on the self-contained battery grid 904.Self-contained battery grid 904 laterally or vertically are placed in the described fixed frame, form and lay battery hole 908, to hold battery.
Figure 10 is the schematic diagram of the self-contained battery grid of battery accommodating apparatus according to an embodiment of the invention.
As shown in figure 10, in the fixed frame of battery accommodating apparatus, self-contained battery grid 1002 are arranged by shown in the figure, make a plurality of battery holes 1004 of laying that form be arranged as matrix.
Figure 11 is the schematic diagram of the self-contained battery grid of battery accommodating apparatus according to an embodiment of the invention.
As shown in figure 11, in the fixed frame of battery accommodating apparatus, self-contained battery grid 1102 are arranged by shown in the figure, and a plurality of the laying in the battery hole 1104 that makes formation laid the positive triangle of battery hole 1104 formation for adjacent in twos any three.
Figure 12 is the schematic diagram of the lower cover of battery accommodating apparatus according to an embodiment of the invention.
As shown in figure 12, have reinforcement 1202 on the lower cover in the present embodiment, make lower cover more firm.Has cover plate bolt hole 1204 on the lower cover, to connect the fixed frame in the battery accommodating apparatus.Also have circuit bolt hole 1206 on the lower cover, be used for fixing the equalizing resistance network of the battery pack that is applied in the battery accommodating apparatus.
Figure 13 is the overall schematic of cell apparatus according to an embodiment of the invention.
As shown in figure 13, be the overall structure of the cell apparatus in the present embodiment.The housing of cell apparatus is divided into upper cover plate 1302, fixed frame 1310, lower cover 1,314 three parts.Wherein, a plurality of battery accommodatings in the cell apparatus are in fixed frame 1310.Charge-discharge protection circuit 1304 is arranged in upper cover plate 1302, and the battery in the cell apparatus is carried out charge and discharge protecting, to avoid overcharging, to cross to put with situations such as overcurrent and excess temperatures battery is caused damage.Equalizing resistance network 1306 is arranged in upper cover plate 1302 and lower cover 1314, is used for the capacity of the battery of balancing battery device, to avoid the unbalanced performance that influences a plurality of batteries owing to a certain joint or a few batteries.Also have contact 1308 on the equalizing resistance network,, realize series connection and parallel connection between the battery to link to each other with the electrode of battery.
In sum, a kind of cell apparatus and a kind of battery accommodating apparatus can be realized, following advantage can be brought according to technical scheme of the present invention:
1, because the present power battery technology and the restriction of manufacturing technology level, the equal objective reality of capacity volume variance between the single battery, with lead-acid battery 12V commonly used in the present electric motor car, 14AH and ferric phosphate lithium cell 3.2V, 1.4AH be the example explanation, if the absolute error of the manufacturing capacity of two kinds of batteries is 2%, if adopt ferric phosphate lithium cell 3.2V, 1.4AH be combined into 12V, the words of the matrix battery pack of 14AH, be 4 strings 10 matrixes also, because ferric phosphate lithium cell 3.2V, 1.4AH the capacity foozle be at random, therefore by after the combination, its capacity error can be cancelled out each other, ideally can offset is zero, therefore make up the 12V that obtains like this, the 14AH battery pack is than lead-acid battery 12V, little of the capacity error of the battery of 14AH have remedied because the capacity error in the manufacturing that the restriction of power battery technology and manufacturing technology level brings more.
2, the battery unit bag of forming 12V, 14AH with the LiFePO4 ion battery of 4 string 10 3.2V, 1.4AH also, compare with the lead-acid battery of 12V, 14AH, its weight is only near 1/3 of lead-acid battery, therefore make the electric motor car total weight significantly reduce, also be convenient to unload down simultaneously from electric motor car.
3, use the equalizing resistance network to carry out capacity equilibrium to the battery in the cell apparatus, and simultaneously each battery is carried out charge and discharge protecting, avoid overcharging or cross and put.The battery that can adequately protect thus prolongs useful life of battery.
4, because charge-discharge protection circuit is to utilize single-chip microcomputer to realize automatic control, so its electric energy of consuming cells constantly.In order to make battery without under the state; make not consuming cells electric energy of charge-discharge protection circuit; then need to have increased power control function; by artificial control; can control the on/off in the charge-discharge protection circuit in the cell apparatus; under situation without battery, can in time cut off the electricity supply, make its not electric energy of consuming cells.Electric motor car far surpasses the time of using in the no time, therefore by this function, can save the electric energy of battery greatly.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (29)
1. a cell apparatus is characterized in that, comprising:
A plurality of batteries, the battery of a plurality of parallel connections forms the batteries in parallel connection group, series connection mutually between a plurality of described batteries in parallel connection groups.
2. cell apparatus according to claim 1 is characterized in that, also comprises:
The equalizing resistance network comprises a plurality of resistance, is connected with described a plurality of batteries, has a resistance at least between any two batteries in each described batteries in parallel connection group, with the capacity of the battery in balanced each described batteries in parallel connection group.
3. cell apparatus according to claim 2 is characterized in that, has conductive contact piece in the described equalizing resistance network, and described equalizing resistance network connects each battery in described a plurality of battery by described conductive contact piece.
4. cell apparatus according to claim 3, it is characterized in that, described conductive contact piece is the V-type shell fragment, wherein, one end of described V-type shell fragment has plumb joint, be welded on the described equalizing resistance network, the other end of described V-type shell fragment has circular protrusions, contacts with the electrode of described a plurality of batteries.
5. cell apparatus according to claim 3, it is characterized in that, described contact is tower power spring, described tower power spring is the lead that is coiled into spiral, the radius of described both helical ends does not wait, and at the bigger end of radius, the end of described lead is welded on the described equalizing resistance network as plumb joint.
6. cell apparatus according to claim 2 is characterized in that, have in the described equalizing resistance network with described a plurality of batteries in the corresponding fuse of each battery, described fuse disconnects when the electric current that bears above predetermined value.
7. cell apparatus according to claim 6 is characterized in that, the rated current of described fuse is 6.3A, and blowout current is 12.6A.
8. cell apparatus according to claim 2 is characterized in that, also comprises: charge-discharge protection circuit, be connected with described a plurality of batteries, and described a plurality of batteries are implemented charge and discharge protecting.
9. cell apparatus according to claim 8 is characterized in that, described charge-discharge protection circuit comprises:
Voltage detecting circuit is connected to described a plurality of battery, detects the voltage of each battery in described a plurality of battery, and is input to central control unit;
Described central control unit is connected to described voltage detecting circuit, according to described voltage, determines whether to stop using two-way gate-controlled switch that described a plurality of batteries are carried out charge or discharge.
10. cell apparatus according to claim 9 is characterized in that, described charge-discharge protection circuit also comprises:
Temperature sensing circuit is connected between described a plurality of battery and the described central control unit, detects the temperature of each battery in described a plurality of battery, and is input to described central control unit,
Wherein, described central control unit determines whether to make described a plurality of battery to stop charging or discharge according to described temperature.
11. cell apparatus according to claim 9 is characterized in that, described charge-discharge protection circuit also comprises:
Current detection circuit is connected between described a plurality of battery and the described central control unit, and detect the electric current of described a plurality of battery input or output, and be input to described central control unit,
Wherein, described central control unit determines whether to make described a plurality of battery to stop charging or discharge according to described electric current.
12. cell apparatus according to claim 9 is characterized in that, described charge-discharge protection circuit also comprises:
Power control circuit is connected to described CPU, by described central control unit out-put supply signal, to start or stop the detection of described voltage detecting circuit to described a plurality of batteries.
13. cell apparatus according to claim 8 is characterized in that, also comprises:
Housing, described a plurality of batteries are arranged in described housing, and each battery can be placed in the described housing independently, or is shifted out from described housing.
14. cell apparatus according to claim 13 is characterized in that, described housing comprises:
Upper cover plate is positioned at the top of described housing;
Lower cover is positioned at described lower part of frame;
Fixed frame between described upper cover plate and lower cover, is used to hold described a plurality of battery.
15. cell apparatus according to claim 14 is characterized in that, described equalizing resistance network is arranged in described upper cover plate and described lower cover, and described charge-discharge protection circuit is arranged in described upper cover plate.
16. cell apparatus according to claim 14 is characterized in that, has a plurality of battery holes of laying that form by the self-contained battery grid in the described fixed frame, is used to hold described a plurality of battery.
17. cell apparatus according to claim 16 is characterized in that, described self-contained battery grid laterally or vertically are placed in the described fixed frame.
18., it is characterized in that described battery is a lithium ion battery according to each described cell apparatus in the claim 1 to 17.
19. a battery accommodating apparatus is used to hold a plurality of batteries, it is characterized in that, comprising:
Upper cover plate is positioned at the top of described battery accommodating apparatus;
Lower cover is positioned at the bottom of described battery accommodating apparatus;
Fixed frame between described upper cover plate and described lower cover, holds described a plurality of battery.
20. battery accommodating apparatus according to claim 19 is characterized in that, has a plurality of battery holes of laying that form by the self-contained battery grid in the described fixed frame, holds described a plurality of battery.
21. battery accommodating apparatus according to claim 20 is characterized in that, described self-contained battery grid laterally or vertically are placed in the described fixed frame.
22. battery accommodating apparatus according to claim 20 is characterized in that, has air vent hole on the described self-contained battery grid.
23. cell apparatus according to claim 20 is characterized in that, described a plurality of battery holes of laying are arranged by matrix form.
24. cell apparatus according to claim 20 is characterized in that, lays battery hole by positive delta arrangement for adjacent in twos three.
25. battery accommodating apparatus according to claim 19 is characterized in that, has heater in the described fixed frame, makes the interior temperature maintenance of described fixed frame at predetermined temperature.
26., it is characterized in that having the space of predetermined in the described upper cover plate according to the described battery accommodating apparatus of claim 19 to 25, to hold the charge-discharge protection circuit that is applied to described a plurality of batteries.
27. according to each described battery accommodating apparatus in the claim 19 to 25, it is characterized in that, all have bolt hole in described upper cover plate, described lower cover, the described fixed frame, and use bolt described upper cover plate, described lower cover, described fixed frame to be connected to each other by described bolt hole.
28., it is characterized in that all having in described upper cover plate, the described lower cover laterally and/or the reinforcement of vertically arranging according to each described battery accommodating apparatus in the claim 19 to 25.
29. battery accommodating apparatus according to claim 28 is characterized in that, has bolt hole on the described reinforcement, and uses bolt to be fixed on described upper cover plate or the lower cover by the equalizing resistance network that described bolt hole will be applied to described a plurality of batteries.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102882982A CN101944642A (en) | 2010-04-28 | 2010-09-21 | Battery device and battery containing device |
| PCT/CN2010/077347 WO2011134234A1 (en) | 2010-04-28 | 2010-09-27 | Battery device and battery accommodating device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020177366 | 2010-04-28 | ||
| CN201020177366.3 | 2010-04-28 | ||
| CN2010102882982A CN101944642A (en) | 2010-04-28 | 2010-09-21 | Battery device and battery containing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101944642A true CN101944642A (en) | 2011-01-12 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102882982A Pending CN101944642A (en) | 2010-04-28 | 2010-09-21 | Battery device and battery containing device |
| CN2010205375171U Expired - Fee Related CN201845840U (en) | 2010-04-28 | 2010-09-21 | Battery device and battery accomodating device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205375171U Expired - Fee Related CN201845840U (en) | 2010-04-28 | 2010-09-21 | Battery device and battery accomodating device |
Country Status (1)
| Country | Link |
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| CN (2) | CN101944642A (en) |
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| CN102336181A (en) * | 2011-08-09 | 2012-02-01 | 山东理工大学 | Integral power battery system convenient for fast exchange |
| CN102616143A (en) * | 2012-03-30 | 2012-08-01 | 广东博特动力能源有限公司 | Power system for electrombile |
| CN103259047A (en) * | 2013-05-14 | 2013-08-21 | 杨叶红 | Cylindrical cell battery pack device and manufacture method thereof |
| CN103456907A (en) * | 2013-08-19 | 2013-12-18 | 浙江吉利汽车研究院有限公司 | Reinforcing and fixing structure for battery pack |
| CN106207283A (en) * | 2016-07-26 | 2016-12-07 | 同济大学 | A kind of supervising device of vehicle-mounted multiple-connected battery group |
| CN108987636A (en) * | 2018-07-18 | 2018-12-11 | 江苏卓岸电源科技有限公司 | A kind of multiplex roles lithium battery box and its battery lamination production technology |
| CN114039112A (en) * | 2021-11-26 | 2022-02-11 | 蜂巢能源科技(无锡)有限公司 | Battery cell SOC regulation and control device and regulation and control method thereof |
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| CN101944642A (en) * | 2010-04-28 | 2011-01-12 | 浙江绿源电动车有限公司 | Battery device and battery containing device |
| US11145932B2 (en) | 2018-09-24 | 2021-10-12 | Milwaukee Electric Tool Corporation | Battery cell module and battery pack |
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| CN201845840U (en) | 2011-05-25 |
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