CN203225290U - Battery pack - Google Patents
Battery pack Download PDFInfo
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- CN203225290U CN203225290U CN2012206225170U CN201220622517U CN203225290U CN 203225290 U CN203225290 U CN 203225290U CN 2012206225170 U CN2012206225170 U CN 2012206225170U CN 201220622517 U CN201220622517 U CN 201220622517U CN 203225290 U CN203225290 U CN 203225290U
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
To inexpensively protect battery cells parallely connected to each other. A battery pack comprises: plural battery cells 1; a battery holder 2 for housing the plural battery cells 1; and plural lead plates 5 mounted to the battery holder for parallely connecting the plural battery cells 1. The battery holder is divided into a first battery holder 2A and a second battery holder 2B, and connects the lead plates 5 of the same electric potential to each other via a protective resistors 56 among the lead plates 5 mounted to the first battery holder 2A and the lead plates 5 mounted to the second battery holder 2B. Thereby, even in such a situation that an internal short-circuit occurs to the battery cells 1 parallely connected to each other via the lead plates 5 and a current is concentrated, a current value can be restrained via the protective resistance 56, so as to protect the battery cells 1.
Description
Technical field
The utility model relates to a kind of battery pack of taking in a plurality of secondary cells that can charge, and for example relates to the power pack of a kind of power supply that can be used in electronic motor scooter, moped etc.
Background technology
The series connection of a plurality of secondary cells and/or the battery pack that is formed by connecting in parallel are used to the power source of electronic motor scooter, moped, perhaps the supply unit of electric automobile etc.Battery pack is by secondary cell being accommodated in resinous battery bracket, and then battery bracket is accommodated in the shell of insulating properties forms.
Such battery pack can improve output voltage by increasing the monocell quantity that is connected in series, and can improve battery capacity by increasing monocell quantity in parallel.Particularly in view of the requirement of in recent years height outputization, battery pack tends to increase the usage quantity of monocell.
On the other hand, in order to monitor unusual for the monocell that constitutes battery pack, the voltage of monocell is measured.In such structure, by measuring the current potential of the lead plate that monocell is joined to one another, detect single battery voltage from middle current potential usually.
At this, a plurality of monocells to be connected and be connected in parallel in the structure of lead plate, it is complicated that the electrical wiring operation during the assembled battery group also becomes.Also consider because a plurality of monocells directly are electrically connected misoperation when assembling and make the situation of monocell short circuit.When particularly any monocell in the monocell after being connected in parallel was short-circuited, electric current concentrated on the lower monocell of resistance, can flow into the lower monocell of resistance from the electric current of other monocells.And when monocell was connected in parallel with each other, quantity in parallel was more many, and the combined resistance of internal resistance is also just more low.Therefore, exist big electric current to flow into a monocell and the possibility of generating heat.Though this is also considered uses bus etc. to connect up safely, because the wiring operation increases, cause existing cost such shortcoming that also rises.
Patent documentation 1: TOHKEMY 2007-71632 communique
Patent documentation 2: TOHKEMY 2004-31014 communique
Patent documentation 3: TOHKEMY 2010-211926 communique
Patent documentation 4: TOHKEMY 2010-267405 communique
Patent documentation 5: Japanese kokai publication hei 4-126378 communique
The utility model content
The utility model is made in view of such problem points in the past.Main purpose of the present utility model is to provide a kind of battery pack, and this battery pack has realized protecting at an easy rate the structure of the monocell that is connected in parallel.
In order to achieve the above object, the battery pack of the 1st technical scheme of the present utility model comprises: a plurality of monocells; Battery bracket, it is used for taking in above-mentioned a plurality of monocell; With a plurality of lead plates; it is installed on above-mentioned battery bracket; be used for above-mentioned a plurality of monocells are coupled together in parallel; above-mentioned battery bracket is divided into first battery bracket and second battery bracket, the lead plate of the same potential in the lead plate that is installed on above-mentioned first battery bracket and the lead plate that is installed on above-mentioned second battery bracket can be connected via protective resistance each other.Thus, even produce the situation that electric current is concentrated at the monocell generation internal short-circuit that has been connected in parallel via lead plate etc., also can suppress current value by protective resistance, therefore, can seek to protect monocell.And the output line that is not arranged at battery pack owing to protective resistance is arranged at the voltage detecting line, therefore, also can not produce loss when common high voltage is exported.
And the battery pack of the 2nd technical scheme also comprises: link substrate, it is used for above-mentioned first battery bracket and second battery bracket are electrically connected, and above-mentioned protective resistance can be installed on the above-mentioned binding substrate.Thus, in the structure of battery bracket being cut apart and being coupled together with the battery bracket after linking substrate and will cutting apart, by protective resistance being set linking substrate, can seek to protect the monocell that has been connected in parallel.
And, in the battery pack of the 3rd technical scheme, can every a batteries in parallel connection piece an above-mentioned protective resistance be set with respect to the adjacent batteries in parallel connection piece in the monocell that has been connected in parallel.Thus, can at each monocell protective resistance be set, when reducing protective resistance quantity, seek to protect Battery pack.
And the battery pack of the 4th technical scheme can also comprise: circuit board, and it is equipped with protective circuit, and this protective circuit is used for monitoring the voltage of the above-mentioned monocell that is incorporated in above-mentioned first battery bracket and second battery bracket.Thus, can utilize a circuit board to monitor the voltage of the monocell of two battery brackets together, thereby can cut down part number, the number of substrates of circuit, contribute in equipment miniaturization, cost cutting.
And the internal resistance that the battery pack of the 5th technical scheme can make above-mentioned protective resistance and above-mentioned monocell about equally.Thus; can utilize the protective resistance that is connected in series with monocell faciation in parallel to compensate by the monocell part that the combined resistance of the internal resistance that causes reduces that is connected in parallel; therefore; can obtain such advantage: can suppress to become almost with to the same the degree of heat of common monocell energising, thereby can utilize common heat dissipation design reply heating situation.
Description of drawings
Fig. 1 is the exploded perspective view of the battery pack of embodiment 1.
Fig. 2 is the stereogram of the cell assembly of presentation graphs 1.
Fig. 3 is the exploded perspective view of the cell assembly of Fig. 2.
Fig. 4 is the exploded perspective view of the cell assembly of Fig. 3 that oblique below is seen from the back side.
The stereogram of Fig. 5 state that to be expression be connected to each other battery bracket (keeper) with the binding substrate.
Fig. 6 is the circuit diagram that is provided with the battery pack of protective resistance at idiostatic batteries in parallel connection piece each other.
Fig. 7 is that expression makes the schematic sectional view that links the state that substrate is connected with first battery bracket and second battery bracket respectively.
Fig. 8 is the schematic sectional view that the binding substrate that is illustrated in Fig. 7 has linked the state of first battery bracket and second battery bracket.
Fig. 9 is the circuit diagram of the battery pack of expression variation.
Figure 10 is illustrated in the amplification view of cutting apart housing among Fig. 5 and linking the bonding part of substrate.
Description of reference numerals
100, battery pack; 1, monocell; 1A, end electrode; 2, battery bracket; 2A, first battery bracket; 2B, second battery bracket; 2a, first assistant support; 2b, second assistant support; 4, shell; 5, lead plate; 5A, the 1st lead plate; 5B, the 2nd lead plate; 5a, brace; 5b, prolongation sheet; 6, circuit board; 6a, slit; 32, outstanding blocking portion (raised line); 34, battery outer space; 55, link substrate; 56, protective resistance; 60, flange nut; 62, embeded slot.
Embodiment
Below with reference to the accompanying drawings execution mode of the present utility model is described.But execution mode illustration shown below is used for battery pack that technological thought of the present utility model is specialized, the utility model not with battery pack specific be following content.In addition, be to be the member of execution mode with the member shown in claims is specific anything but.Particularly short of appointment such as the size of the described member of formation of execution mode, material, shape, its relative configuration ground record just is not that the utility model scope only is defined in wherein aim, only is simple case illustrated.In addition, the exaggeration to some extent in order to clearly state sometimes such as the size of each member shown in the drawings, position relation.And in the following description, same title, Reference numeral are represented the member of same or same nature, suitably detailed.And, be used for to constitute each parts of the present utility model and also can make and constitute a plurality of parts ground with same member and be also used as the mode of a plurality of parts with a member, on the contrary, also can share and realize the function of a member with a plurality of members.And also there is the content of the embodiment that can be used in other, execution mode etc. in illustrated content in the embodiment of a part, execution mode.
Fig. 1 represents the exploded perspective view of the battery pack 100 of embodiment 1 of the present utility model.Battery pack 100 shown in this figure is installed on battery-operated motor cycle, and it is used for supplying with the power supply that drives usefulness.Therefore, be provided with out connector for supply power (electric power) at battery-operated motor cycle.Out connector contains the lead-out terminal as high voltage transmission line, and this lead-out terminal will be built in the secondary cell series connection of battery pack 100 and/or couple together in parallel.And, between battery pack 100 and battery-operated motor cycle, also be provided with independently of each other for the signal terminal that exchanges control signal with lead-out terminal.And, also can comprise the charging terminal that built-in monocell 1 is charged for from the outside at out connector.Charging terminal also can be also used as lead-out terminal.Out connector puts together these lead-out terminals and/or charging terminal, signal terminal.But, these terminals need not be concentrated on an out connector, also each terminal can be arranged at other connector.
This battery pack 100 is arranged at the assigned address of battery-operated motor cycle, and out connector and the socket that is arranged at battery-operated motor cycle are coupled together.In addition, at this, to the example of battery pack as the supply unit of battery-operated motor cycle described, still, the utility model is not defined in battery pack the electric motorcycle vehicle power supply device, certainly can be with battery pack as other supply units.
In battery pack 100, will make roughly box-shaped for the global shape of the shell 4 that constitutes profile.Battery bracket is divided into the first battery bracket 2A and the second battery bracket 2B.Each battery bracket is incorporated in the inner space that shell two is divided into upper shell and lower house and forms.And, at the seal of elastically deformables such as the composition surface of upper shell and lower house insertion liner, can seek the waterproof effect at this joint interface.
Cell assembly
Except connector part of being arranged at the first battery bracket 2A etc., the profile of these first battery bracket 2A and the second battery bracket 2B is made about equally rectangle.At this, Fig. 2 represents the stereogram of the cell assembly that is made of the second battery bracket 2B, and the exploded perspective view of Fig. 3 and Fig. 4 is represented the exploded perspective view of this cell assembly.As shown in these figures, cell assembly comprises: a plurality of monocells 1 that can charge, be used for these monocells 1 are arranged in multiple lines and multiple rows ground mode and with the plastic second battery bracket 2B of its maintenance, be welded in and utilize the second battery bracket 2B to be held in the end electrode 1A of each monocell 1 of assigned address and the circuit board 6 that is used for connecting a plurality of lead plates 5 of adjacent monocell 1 and is arranged at the face of the second battery bracket 2B.
Shown in the exploded perspective view of Fig. 3 and Fig. 4, the first battery bracket 2A and the second battery bracket 2B are arranged in monocell 17 row, are configured to 14 row along transverse direction along longitudinal direction respectively.That is, the mode that 98 monocells 1 are listed as with 7 row 14 is arranged in rectangularly and disposes.But, battery pack of the present utility model not with the number of monocell, to arrange specific be this state.And, will constitute cell assembly with being connected in parallel with a plurality of monocell series connection that the mode of multiple lines and multiple rows is arranged.In Fig. 3 and cell assembly shown in Figure 4,7 monocells that are disposed at same column are coupled together in parallel, and, per 7 monocells that are arranged in row adjacent one another are are coupled together with being one another in series, thereby the monocell of 14 row are coupled together with being one another in series.That is, the cell assembly of accompanying drawing is to form by 7 parallel connections 14 of 98 monocells are connected in series.In this structure, by a plurality of monocells are coupled together in parallel, can increase the output current of battery pack, and, be connected in series by the monocell that will connect with being connected in parallel to each other, can improve the output voltage of battery pack.But the number of the monocell that battery pack of the present utility model will not connect with being connected in parallel to each other specific with the number of the monocell that is connected with being one another in series is above number.
The second battery bracket 2B is split into two in the centre of the length direction (being above-below direction in Fig. 3, Fig. 4) of columnar monocell 1 becomes the first assistant support 2a and the second assistant support 2b.The shape that the first assistant support 2a and the second assistant support 2b are configured as the both ends open that makes battery outer space 34 and can supply columnar monocell 1 to insert.The second battery bracket 2B is shaped by insulating components such as plastics.Be that the second battery bracket 2B that is provided with the shape in battery outer space 34 arranges by monocell 1 is divided ground with plastics forming, can when locating a plurality of monocells 1 exactly, arrange these a plurality of monocells 1.
The first assistant support 2a and the second assistant support 2b are bonded each other with the state that two ends with monocell 1 are inserted in both sides' battery outer space 34, are used for monocell 1 is accommodated in each battery outer space 34.By dog screw that the first assistant support 2a and the second assistant support 2b is connected to each other.The first assistant support 2a of accompanying drawing offers the screwed hole (not shown) that inserts for dog screw, and the second assistant support 2b will be arranged at the opposite face of screwed hole for the binding hub that this dog screw screws in.
And the second battery bracket 2B will be arranged at the outside end face of this second battery bracket 2B for the outstanding blocking portion 32 that the end electrode 1A that stops the monocell 1 that is inserted in battery outer space 34 gives prominence to towards the outside from the outboard end of this second battery bracket 2B in integrally formed mode.Though the end electrode 1A of the monocell 1 that is inserted in battery outer space 34 is showed out from the outboard end of this second battery bracket 2B, but, in order not make end electrode 1A outstanding from the openend in battery outer space 34, with from the opening ora terminalis in battery outer space 34 to the inside the mode outstanding and peristome of clad battery accommodation space 34 partly, should outstanding blocking portion 32 with the state setting of projection.
The second battery bracket 2B of Fig. 2 is configured to battery outer space 34 rectangular, and the mode that is overlapped in the peristome in battery outer space 34 with the part in a plurality of battery outers space 34 parts connected to each other will be given prominence to blocking portion 32 and is set to linearity.This second battery bracket 2B is connected to through the end electrode 1A of the monocell 1 in battery outer space 34 by outstanding blocking portion 32, thereby stops the end electrode 1A of monocell 1 outstanding from the outside end face of the second battery bracket 2B.And outstanding blocking portion 32 also is directed to the guiding piece of assigned address with lead plate 5 and plays a role as being used for.
The second battery bracket 2B makes the outer openings portion of end electrode 1A from battery outer space 34 of monocell 1 be exposed to the outside under the state that links the first assistant support 2a and the second assistant support 2b.Lead plate 5 is welded in by methods such as spot welding, laser welding and is exposed to outside end electrode 1A.The second battery bracket 2B of Fig. 3, Fig. 4 also will give prominence to blocking portion 32 as the guiding piece of the assigned address on two surfaces of the both ends open that a plurality of lead plates 5 is disposed at battery outer space 34 in mode separated from one another.Lead plate 5 is highlighted blocking portion 32 guiding, and is connected to the end electrode 1A of monocell 1.Thereby outstanding blocking portion 32 is arranged at the position of configuration lead plate 5, and this lead plate 5 is used for being connected with end electrode 1A.
As shown in Figure 3, Figure 4, lead plate 5 is by the guiding of the outstanding blocking portion 32 of the second battery bracket 2B, and it is connected in the end electrode 1A of monocell 1 by spot welding, laser welding, and this lead plate 5 is used for will 1 series connection of adjacent monocell and couple together in parallel.Lead plate 5 is used for the monocell 1 of same row is coupled together in parallel, and the monocell 1 of adjacent columns is connected in series.Lead plate 5 comprises: the 1st lead plate 5A of 1 col width, and its mode with the two ends that are positioned at the monocell 1 that is connected to multiple row disposes, and is used for 7 monocells 1 of 1 row are coupled together in parallel; The 2nd lead plate 5B of 2 col widths, it is in order to couple together 7 monocells 1 of each row in parallel, and, 7 monocells 1 of adjacent row are connected in series, and the end electrode 1A of 14 monocells 1 is coupled together.
The cell assembly of Fig. 3, Fig. 4 is arranged with for 27 the 2nd lead plate 5B that battery 1 couples together that itemize in parallel to each other at the lateral surface of the second assistant support 2b (being lower face side in Fig. 3).7 the 2nd lead plate 5B are respectively applied to 7 row monocells 1 are coupled together in parallel, and adjacent 2 batteries 1 of itemizing are connected in series.And, there are 6 to be used for 2 the 2nd lead plate 5B that battery 1 couples together that itemize in the intermediate configurations of the lateral surface of the first assistant support 2a (in Fig. 3, being upper surface side), dispose 2 at the two ends that become outlet side of the lateral surface of the first assistant support 2a and be used for 1 the 1st lead plate 5A that battery 1 couples together that itemizes.6 the 2nd lead plate 5B of centre that are disposed at the lateral surface of the first assistant support 2a are respectively applied to 7 row monocells 1 are coupled together in parallel, and adjacent 2 batteries 1 of itemizing are connected in series.2 the 1st lead plate 5A at two ends that are disposed at the lateral surface of the first assistant support 2a are used for 7 row monocells 1 are coupled together in parallel.Above cell assembly couples together 7 row monocells 1 in parallel, and, with 14 battery 1 engrails that are connected in series of itemizing, the 1st lead plate 5A of two ends that is connected in the lateral surface of the first assistant support 2a is connected in lead-out terminal (not shown) as output.
And, be provided with the brace 5a that is connected for circuit board 6 at an end of lead plate 5.As shown in Figure 3, Figure 4, this lead plate 5 further bends the leading section of brace 5a, and this leading section directly is electrically connected on circuit board 6.The slit 6a that circuit board 6 openings have the leading section for brace 5a to insert is inserted in this slit 6a with the leading section of brace 5a, and, by solder brace 5a is connected in circuit board 6.Circuit board 6 is by voltage, the electric current of brace 5a input from lead plate 5, thus the intermediate potential of detection cell assembly.
And, also can be used for the heating monocell heater so that its mode that is contacted with the surface of monocell arrange.In this case, circuit board comprises for the control circuit of opening/closing (ON/OFF) to the energising of heater.Control circuit is for detection of the energising to heater of temperature and opening/closing.Control circuit comprises the temperature sensor for detection of battery temperature or extraneous gas temperature.This temperature sensor for example is thermistor.Thermistor is used for becoming the variation of resistance value to detect temperature transition on every side, and resistance value is input to control circuit.This battery pack will arrange in the mode close to monocell for detection of the temperature sensor of the temperature of monocell.
In addition, except circuit board being arranged at the structure of each battery bracket, also can be that circuit board only is arranged at wherein arbitrary battery bracket, omit circuit board at another battery bracket, share a circuit board and monitor two battery brackets.
The first battery bracket 2A and the second battery bracket 2B utilize output cable to be connected with output line.Then, the output of whole battery group is connected in the lead-out terminal of the out connector that is arranged on the first battery bracket 2A.Like this, the battery bracket 2 that a plurality of battery units are connected and coupled together in parallel in parallel, thus the capacity of battery pack is doubled.
On the other hand, between the first battery bracket 2A and the second battery bracket 2B, be connected with state-detection line for the state that monitors monocell 1.Thus, as mentioned above, utilize the protective circuit that is installed on the circuit board 6 that is arranged on one of them battery bracket 2, can monitor the state of the monocell 1 of two battery brackets 2.Therefore, battery pack comprises the binding substrate 55 that couples together for the first battery bracket 2A and the second battery bracket 2B.The stereogram of Fig. 5 is represented with linking substrate 55 has been connected the first battery bracket 2A with the second battery bracket 2B state.This binding substrate 55 is electrically connected to each other the battery bracket that electricity is connected in parallel.Specifically, shown in the circuit diagram of Fig. 6, between the first battery bracket 2A and the second battery bracket 2B, inciting somebody to action each other by binding substrate 55, idiostatic batteries in parallel connection piece is electrically connected to each other.At this, be provided with from each lead plate 5 of the first battery bracket 2A and the second battery bracket 2B and prolong sheet 5b, be electrically connected to each other by linking the prolongation sheet 5b of substrate 55 with corresponding lead plate 5.By in this wise lead plate being directly connected in the binding substrate, can save the time of connecting up with independent lead-in wire etc., and, also get rid of the broken string equivalent risk, realize the wiring of cheap and reliability aspect excellence.And, monitor the monocell of two battery brackets by utilizing a binding substrate, also can obtain such advantage: can save the time that each battery bracket is all arranged circuit board, make circuit board universalization, cutting down cost and space.
Fig. 6～Fig. 8 represents to adopt such binding substrate 55 to connect the state of battery bracket 2.In these accompanying drawings, Fig. 7 is that expression makes the schematic sectional view that links the state that substrate 55 is connected with the first battery bracket 2A and the second battery bracket 2B respectively, and Fig. 8 is the schematic sectional view that the binding substrate 55 that is illustrated in Fig. 7 has connected the state of the first battery bracket 2A and the second battery bracket 2B.As shown in these figures, the first battery bracket 2A and the second battery bracket 2B are electrically connected via linking substrate 55.And the protective circuit that is installed on circuit board 6 monitors the single battery voltage of each lead plate 5.Thus, can utilize a protective circuit to monitor at interior single battery voltage comprising the monocell 1 that is incorporated in the first battery bracket 2A.As a result, can in the first battery bracket 2A, omit protective circuit.On the other hand, as mentioned above, owing to be provided with out connector as described above at the first battery bracket 2A, therefore, can replace protective circuit ground to install at the first battery bracket 2A and be used for the required member of configuration out connector.Like this, can cut apart in the support at two required circuit etc. is disperseed respectively and configuration efficiently, thereby can seek to cut down space and cost.
In above-mentioned example, as shown in Figure 6, utilize binding substrate 55 that battery bracket 2 is joined to one another.And, be inserted with protective resistance 56 each other at battery bracket 2.Protective resistance 56 is connected in series in idiostatic batteries in parallel connection piece each other each other between battery bracket 2.Thus, can avoid causing excessive electric current to flow into the situation of monocell by short circuit etc.Specifically, in the structure that forms that a plurality of monocells are connected in parallel, when wherein any monocell was short-circuited, electric current concentrated on this lower monocell of resistance, can flow into the lower monocell of this resistance from the electric current of other monocells.And when monocell was connected in parallel each other, the combined resistance of the more many internal resistances of quantity in parallel was just also more low.Therefore, exist big electric current to flow into a monocell and the possibility of generating heat.Therefore, at the batteries in parallel connection piece that is connected in parallel protective resistance 56 is set each other.
The resistance value of protective resistance 56 preferably can be set at and the internal resistance of the monocell value with degree, for example is set at 20mm Ω～30mm Ω.As long as set in this wise, the same countermeasure reply of the caloric value of supposition is as the caloric value that produces with the resistance value of degree with common monocell in the time of just can utilizing with common discharging and recharging.That is, by a plurality of monocells are together in parallel, internal resistance combined resistance each other reduces, and therefore, causes caloric value to increase thereby flow through bigger electric current easily.Therefore; by the monocell group that the monocell group who is connected in parallel in series arranged protective resistance 56, namely be connected in parallel in formation, divided battery bracket protective resistance 56 is set each other, though can guarantee the combined resistance value minimum also be more than the internal resistance of a monocell.As a result, can equally implement hot countermeasure with the hot countermeasure that flow into the monocell adstante febre because of higher charging and discharging currents with getting the gist, thereby can avoid studying the situation of appending special heat-dissipating structure.
In the example of Fig. 7, Fig. 8 of above explanation, the first battery bracket 2A that obtains battery bracket being cut apart the back and the second battery bracket 2B dispose the structure that forms overlappingly and are illustrated, but, be not limited to this example, for example as shown in Figure 9, the first battery bracket 2A and the second battery bracket 2B are disposed dividually.Adopt such configuration, at battery bracket the space is set each other, improve thermal diffusivity thereby the heating of each battery bracket can be discharged into this space, and, thereby the situation that can avoid the heating of one of them battery bracket to transfer heat to other battery brackets easily improves fail safe.
The binding that links between substrate 55 and the first battery bracket 2A and the second battery bracket 2B can fixedly be carried out by screw thread.At this moment, as Fig. 4 and shown in Figure 10, the composition surface that forms battery bracket 2A being divided into the first assistant support 2a and the second assistant support 2b arranges embeded slot 62, and, flange nut 60 embedded clampingly and be fixed in this embeded slot 62.Flange nut 60 can utilize flange to avoid it to come off from embeded slot 62.By like this, inserted num structure that does not adopt high price etc. just can realize utilizing the fixture construction of the nut that the composition surface of the first assistant support 2a and the second assistant support 2b forms at an easy rate.And when screw threads for fastening, the prolongation sheet 5b that the lead plate 5 from battery bracket 2 is prolonged is crimped on together with linking substrate 55.Thus, can be connected mechanically to battery bracket 2 and also realize electrical connection linking substrate 55.
Utilizability on the industry
The driving that battery pack of the present utility model preferably can be used as battery-operated motor cycle, electric wheelchair, electro-tricycle, moped, Electric hand cart etc. is with battery pack etc.
Claims (9)
1. battery pack, it comprises:
A plurality of monocells (1);
Battery bracket (2), it is used for taking in above-mentioned a plurality of monocell (1); With
A plurality of lead plates (5), it is installed on above-mentioned battery bracket, is used for above-mentioned a plurality of monocells (1) are coupled together in parallel,
It is characterized in that,
Above-mentioned battery bracket is divided into first battery bracket (2A) and second battery bracket (2B);
The lead plate (5) of the same potential in the lead plate (5) that is installed on above-mentioned first battery bracket (2A) and the lead plate (5) that is installed on above-mentioned second battery bracket (2B) is connected via protective resistance (56) each other.
2. battery pack according to claim 1 is characterized in that, also comprises:
Link substrate (55), it is used for above-mentioned first battery bracket (2A) and above-mentioned second battery bracket (2B) are electrically connected;
Above-mentioned protective resistance (56) is installed on the above-mentioned binding substrate (55).
3. battery pack according to claim 1 and 2 is characterized in that,
Adjacent batteries in parallel connection piece with respect in the monocell (1) that has been connected in parallel arranges an above-mentioned protective resistance (56) every a batteries in parallel connection piece.
4. battery pack according to claim 1 and 2 is characterized in that, also comprises:
Circuit board (6), it is equipped with protective circuit, and this protective circuit is used for monitoring the voltage of the above-mentioned monocell (1) that is incorporated in above-mentioned first battery bracket (2A) and second battery bracket (2B).
5. battery pack according to claim 3 is characterized in that, also comprises:
Circuit board (6), it is equipped with protective circuit, and this protective circuit is used for monitoring the voltage of the above-mentioned monocell (1) that is incorporated in above-mentioned first battery bracket (2A) and second battery bracket (2B).
6. battery pack according to claim 1 and 2 is characterized in that,
Above-mentioned protective resistance (56) equates with the internal resistance of above-mentioned monocell (1).
7. battery pack according to claim 3 is characterized in that,
Above-mentioned protective resistance (56) equates with the internal resistance of above-mentioned monocell (1).
8. battery pack according to claim 4 is characterized in that,
Above-mentioned protective resistance (56) equates with the internal resistance of above-mentioned monocell (1).
9. battery pack according to claim 5 is characterized in that,
Above-mentioned protective resistance (56) equates with the internal resistance of above-mentioned monocell (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011253379A JP2013109934A (en) | 2011-11-21 | 2011-11-21 | Battery pack |
| JP2011-253379 | 2011-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225290U true CN203225290U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206225170U Expired - Fee Related CN203225290U (en) | 2011-11-21 | 2012-11-21 | Battery pack |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013109934A (en) |
| CN (1) | CN203225290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106415882A (en) * | 2014-05-08 | 2017-02-15 | 高科技股份公司 | Battery pack and method for assembling a battery pack |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2535152B1 (en) * | 2013-10-03 | 2015-11-24 | Caf Power & Automation, S.L.U. | POWER ACCUMULATION BASKET |
| KR102317500B1 (en) * | 2015-04-29 | 2021-10-26 | 삼성에스디아이 주식회사 | Battery pack |
| WO2021038717A1 (en) * | 2019-08-27 | 2021-03-04 | 有限会社山岡 | Input/output structure of assembled battery pack and manufacturing method therefor |
-
2011
- 2011-11-21 JP JP2011253379A patent/JP2013109934A/en active Pending
-
2012
- 2012-11-21 CN CN2012206225170U patent/CN203225290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106415882A (en) * | 2014-05-08 | 2017-02-15 | 高科技股份公司 | Battery pack and method for assembling a battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013109934A (en) | 2013-06-06 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20141121 |
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| EXPY | Termination of patent right or utility model |