CN103904380A - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN103904380A CN103904380A CN201310726333.8A CN201310726333A CN103904380A CN 103904380 A CN103904380 A CN 103904380A CN 201310726333 A CN201310726333 A CN 201310726333A CN 103904380 A CN103904380 A CN 103904380A
- Authority
- CN
- China
- Prior art keywords
- terminal pad
- pad portion
- wire
- lead
- battery pack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The present invention is provided with the object of having guide wires connected ideally with the connection plate of an electric circuit substrate in a welding order. Therefore, the battery pack of the invention is provided with plural battery electrode terminals that are connected in series and are connected to an electric circuit substrate throguh guide wires. The electric circuit substrate is provided with plural connection plates on an insulation substrate and are connected with the electric circuit. At least one of the connection plates is provided with a first connection plate portion connected with the electric circuit and a severing connection plate structred by a second connection plate portion. The severing connection plate makes the first connection plate portion and the second connection plate portion disposed on the surface of the insulation substrate in an un-connected manner and there is a fiber-welding gap. The electric circuit substrate is provided with a throughhold connecting with the second connection plate portion; when the through hole is inserted to the second connection plate portion throguh a guide wire in a welding manner, the fiber welding materials enable the first connection plate portion and the second connection plate portion to be mutually connected.
Description
Technical field
The present invention relates to a kind of battery pack that the circuit substrate that the electronic circuits such as voltage detecting circuit are installed is connected with the multiple monocells that are connected in series via lead-in wire, particularly a kind of battery pack of the power supply that is suitable for electric bicycle, small electric motorcycle etc. most.
Background technology
Follow small electric motorcycle, electric bicycle etc. to obtain the universal of electric equipment that electric power drives from battery pack, just seeking the high output of battery pack.In such battery pack, in order to obtain large output, multiple monocells are connected in series to improve output voltage.In addition utilize, the lithium ion secondary monocell capacious etc. of unit volume as monocell.
In the battery pack of the multiple monocells of use, in order to use steadily in the long term each monocell, in addition, deteriorated in order to reduce, the management of each monocell becomes important.For this battery pack, for example utilize the electronic circuits such as voltage detecting circuit to detect and monitor the voltage of monocell, limit if voltage exceedes certain scope the current value discharging and recharging, or stop discharging and recharging to protect battery.This battery pack need to be connected via the lead-in wire (lead) of guide plate (lead plate) or wire (lead wire) circuit substrate that electronic circuit is installed with each monocell.This battery pack as shown in Figure 1, is connected via lead-in wire 103 electrode terminal of the each monocell 101 being mutually connected in series with circuit substrate 102.And then, for the electronic circuit 111 to being installed on circuit substrate 102 is supplied with power for operation, by the side of the positive electrode of the power line of electronic circuit 111 115 and negative side, be connected with negative side with the side of the positive electrode of the monocell 101 being connected in series.
Above battery pack is connected in series multiple monocells 101 as battery module 110, and via lead-in wire 103, circuit substrate 102 is assembled and formed with the electrode terminal of the monocell 101 of this battery module 110 of formation.In assembling procedure, the lead-in wire 103 being connected with battery module 110 and circuit substrate 102 are connected by soldering.Each lead-in wire 103 need to be connected with circuit substrate 102 according to specific order, according to order of connection difference, can produce following disadvantage: the voltage higher than regulation is applied to and is installed on the electronic circuit 111 of circuit substrate 102 and the fuse arranging 113 is fused in battery pack, or be imported into electronic circuit 111 and produce fault etc. than withstand voltage high voltage.For example, in Fig. 1, if not being linked in sequence according to A, B, C of lead-in wire 103, thereby become after operating state at the F electronic circuit 111 that connects the A of earth connection and the power line of side of the positive electrode 115, be connected the lead-in wire 103 of E, electronic circuit 111 can not correctly detect the voltage of monocell 101, be judged to be monocell 101 and rise to abnormal voltage, switch element 114 is switched on, electric current flows through between fuse 113,113 and switch element 114 the heating resistor R arranging, and produces the disadvantage that fuse 113 fuses etc.In addition, if also do not connect the lead-in wire 103 that the lead-in wire 103 of D just connects E, the voltage difference of input terminal becomes very large, exceedes that withstand voltage voltage is imported into the input side of electronic circuit 111 and the disadvantage that produces fault etc.Because electronic circuit is the imagination voltage detecting of a monocell and selected, thereby for the formed high-tension patience of being connected in series of multiple monocells, in the time of design, do not consider, its result, because the high voltage applying more than rated value exists the destroyed danger of element.
In order to prevent above disadvantage, develop the battery pack that uses specifically-built connector that battery module is connected with circuit substrate.(with reference to patent documentation 1)
Formerly technical literature
Patent documentation
Patent documentation 1:JP JP 2011-243426 communique
Summary of the invention
The problem that invention will solve
Use the battery pack of specific connector, can simply battery module be connected with circuit substrate.But, use the battery pack of connector, except component costs increases, also have the shortcoming that can not eliminate the loose contact of contact completely.Particularly, uprised the shortcoming that exists component costs to uprise by the connector cost of special designs.This shortcoming can be eliminated by the lead-in wire being connected with monocell is soldered to circuit substrate according to specific order.In order to realize the method, special circuit substrate needs especially the terminal pad of the conductive part of connecting lead wire (land) to be made as to specific shape.Fig. 2 illustrates can be by soldering by lead-in wire 203 circuit substrates 202 that are connected with the electronic circuit of circuit substrate 202 according to specific order.This circuit substrate 202, lead-in wire 203 is being inserted under the state of connecting hole 218 of circuit substrate 202, do not connect with the terminal pad 206 of the conductive part 205 being connected with electronic circuit, thereby be connected with terminal pad 206 by lead-in wire 203 being soldered to terminal pad 206.Lead-in wire is inserted into the circuit substrate that connecting hole is just connected with electronic circuit, needs to specify lead-in wire to insert the order of connecting hole, but battery module and circuit substrate are linked to after ad-hoc location, all lead-in wires cannot be inserted into connecting hole according to specific order.In addition, allow to be inserted into connecting hole according to specific order, the lead-in wire that is inserted into connecting hole can not be connected with the terminal pad of electronic circuit reliably.Therefore,, according to the terminal pad of the lead-in wire that is specifically linked in sequence, need to adopt the structure being connected with lead-in wire by soldering.The circuit substrate 202 of Fig. 2, in order to realize this object, is arranged at surface by the terminal pad 206 that conductive part is not set around connecting hole 218.The lead-in wire 203 that is inserted into connecting hole 218 is carried out to soldering, and this terminal pad 206 is connected with lead-in wire 203 by solder.Therefore,, by order lead-in wire 203 being soldered to terminal pad 206, can lead-in wire 203 be connected with terminal pad 206 according to the order of soldering.
But the circuit substrate of Fig. 2 202 is because lead-in wire 203 is soldered to the surperficial terminal pad 206 that is attached to insulating substrate 204 to be fixed, so exist due to the easy shortcoming of peeling off from insulating substrate 204 of the terminal pads such as vibrations, impact 206.This shortcoming is connected the terminal pad being connected with electronic circuit 306 like that by circuit substrate 302 as shown in Figure 3 with the through hole 308 that is arranged at insulating substrate 304, and lead-in wire 303 is inserted into the structure that this through hole 308 carries out soldering can eliminates.But, this structure because be connected with terminal pad 306 under the state that lead-in wire 303 is inserted into connecting hole 318, so can not will go between and 303 be connected with terminal pad 306 according to specific order, the disadvantage that the electronic circuit that as previously mentioned, can produce the blown fuse of battery pack or be installed on circuit substrate breaks down etc.
The present invention develops as object further to solve above shortcoming just.Free-revving engine of the present invention is to provide a kind of can lead-in wire connection with the terminal pad of circuit substrate with desirable order according to the order of soldering, and can effectively stop the battery pack of peeling off of the terminal pad of connecting lead wire.
Solve means and the invention effect of problem
Battery pack of the present invention possesses: the multiple monocells 1 that are mutually connected in series; With circuit substrate 2, it is connected with the electrode terminal of this monocell 1 via the lead-in wire 3 being made up of guide plate 3A or wire.Circuit substrate 2 is provided with conductive part 5 on the surface of insulating substrate 4, at conductive part 5, electronic circuit 11 is installed.And circuit substrate 2 will be connected with electronic circuit 11 and be the surface that multiple terminal pads 6 are arranged at insulating substrate 4 via lead-in wire 3 conductive parts 5 that are connected with monocell 1.What at least one of multiple terminal pads 6 adopted that the 2nd 6B of terminal pad portion of connecting lead wire 3 forms by the 1st 6A of terminal pad portion being connected with electronic circuit 11 with by soldering cuts apart terminal pad 6X.Cut apart terminal pad 6X, the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion are disposed to the surface of insulating substrate 4 with notconnect state, and, between the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion, be provided with by soldering go between 3 solder 30 and interconnective soldering space 7.And, circuit substrate 2 has the through hole 8 that is connected with the 2nd 6B of terminal pad portion and inserts lead-in wire 3, the lead-in wire 3 that is inserted into this through hole 8 is connected with the 2nd 6B of terminal pad portion by soldering, and, by lead-in wire 3 being soldered to the solder 30 of the 2nd 6B of terminal pad portion, the 1st 6A of terminal pad portion of the both sides that are positioned at soldering space 7 is connected with the 2nd 6B of terminal pad portion, lead-in wire 3 is connected with the electronic circuit 11 of circuit substrate 2 with the 2nd 6B of terminal pad portion via the 1st 6A of terminal pad portion.
Above battery pack has following feature: can lead-in wire be connected with the terminal pad of circuit substrate according to the order of soldering, effectively stop peeling off of terminal pad that soldering goes between simultaneously.This be because: the circuit substrate of above battery pack possesses the terminal pad of cutting apart that the 2nd terminal pad portion of connecting lead wire forms by the 1st terminal pad portion being connected with electronic circuit with by soldering, between the 1st terminal pad portion being connected with electronic circuit and the 2nd terminal pad portion of the through hole with connecting lead wire, be provided with soldering space, so under the state that lead-in wire is connected with through hole, lead-in wire is not connected with electronic circuit with the 1st terminal pad portion via the 2nd terminal pad portion, the lead-in wire of the through hole that is inserted into the 2nd terminal pad portion is soldered to after the 2nd terminal pad portion, the 1st terminal pad portion is connected by solder with the 2nd terminal pad portion, thereby lead-in wire is connected with electronic circuit.
Battery pack of the present invention can be, forms battery module 10 by the multiple monocells 1 that are mutually connected in series, and only the terminal pad 6 that connects the lead-in wire 3 being connected with the outlet side of the maximum potential of this battery module 10 is made as and cuts apart terminal pad 6X.
Above battery pack, the terminal pad of the lead-in wire that adopt being only arranged in multiple terminal pads of circuit substrate, connection is connected with the outlet side of the maximum potential of battery module is made as the simple structure of cutting apart terminal pad, multiple lead-in wires can be arrived to the terminal pad of circuit substrate according to desirable order by brazing, effectively prevent the disadvantage of fault, the fusing of fuse etc. of the electronic circuit in assembling procedure simultaneously.
Battery pack of the present invention can be to form battery module 10 by the multiple monocells 1 that are mutually connected in series, and the terminal pad 6 that connects the lead-in wire 3 being connected with the tie point 16 of multiple monocells 1 is made as and cuts apart terminal pad 6X.
Above battery pack, by by being arranged in multiple terminal pads of circuit substrate, the terminal pad of lead-in wire that connection is connected with the tie point of multiple batteries adopts and cuts apart terminal pad, multiple lead-in wires can be arrived to the terminal pad of circuit substrate according to desirable order by brazing, prevent reliably the disadvantage of fault, the fusing of fuse etc. of the electronic circuit in assembling procedure.
Battery pack of the present invention can be, soldering space 7 is made as to slit-shaped, and by the inner width of slit be made as 0.01mm above, below 0.5mm.
This battery pack, by lead-in wire being soldered to the 2nd terminal pad portion, can reliably and stably be connected lead-in wire with electronic circuit.This is because can the 1st terminal pad portion be connected reliably with the 2nd terminal pad portion by soldering.
Battery pack of the present invention can be, the 2nd 6B of terminal pad portion is made as to the ring-type arranging around through hole 8, has the 1st 6A of terminal pad portion in the arranged outside of the 2nd 6B of terminal pad portion, between the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion, is provided with soldering space 7.
Above battery pack can be soldered to lead-in wire the 2nd terminal pad portion, and the 1st terminal pad portion is connected reliably with the 2nd terminal pad portion.This is because the solder that is soldered to the 2nd terminal pad portion flows towards periphery, thereby is connected with the 1st terminal pad portion.
Battery pack of the present invention can be that the 2nd 6B of terminal pad portion is connected with the conductive part 5 at the back side that is arranged at insulating substrate 4 via the through hole 8 that connects insulating substrate 4.
This battery pack has the feature that can further improve vibration resistance intensity.This is because the 2nd terminal pad portion is connected with the conductive part on the two sides that is attached to insulating substrate via through hole.
Battery pack of the present invention can be that the 2nd 6B of terminal pad portion is connected with the conductive part 5 at the back side that is arranged at insulating substrate 4 via multiple sub-through holes 9.
This battery pack can be fixed on insulating substrate by the 2nd terminal pad portion more reliably.
Battery pack of the present invention can be that the electronic circuit 11 that is installed on circuit substrate 2 possesses the voltage detecting circuit 19 of the voltage that detects each monocell 1.
The voltage detecting circuit that this battery pack is installed on circuit substrate by utilization detects the voltage of monocell, can in the voltage of controlling monocell, discharge and recharge.
Battery pack of the present invention can be, the electronic circuit 11 that is installed on circuit substrate 2 possesses the voltage detecting circuit 19 of the voltage that detects each monocell 1, the terminal pad being connected with the side of the positive electrode of the power line 15 and any one party of negative side or both sides from power for operation to this voltage detecting circuit 19 that supply with 6 is adopted and cuts apart terminal pad 6X, power line 15 is connected with monocell 1 with lead-in wire 3 via the 1st 6A of terminal pad portion, the 2nd 6B of terminal pad portion.
This battery pack is because can control the moment of carrying out electric power supply from monocell to electronic circuit, so can prevent reliably the fault of electronic circuit, the fusing of fuse.
Brief description of the drawings
Fig. 1 is the block diagram of existing battery pack.
Fig. 2 is the vertical view that represents an example of the terminal pad of existing circuit substrate.
Fig. 3 is another the routine profile that represents the terminal pad of existing circuit substrate.
Fig. 4 is the block diagram of the related battery pack of one embodiment of the present invention.
Fig. 5 is the constructed profile of the related battery pack of one embodiment of the present invention.
Fig. 6 is the plane graph of cutting apart terminal pad that represents the circuit substrate of the related battery pack of one embodiment of the present invention.
Fig. 7 is the profile that represents lead-in wire to be soldered to the state on the circuit substrate shown in Fig. 6, is the figure that is equivalent to the VII-VII line section of Fig. 6.
Fig. 8 is the profile that represents lead-in wire to be soldered to the state on the circuit substrate shown in Fig. 6, is the figure that is equivalent to the VIII-VIII line section of Fig. 6.
Embodiment
Below, based on accompanying drawing, embodiments of the invention are described.But embodiment shown below is for by the example of battery pack specific technological thought of the present invention, battery pack of the present invention is not specifically for following battery pack.And then this specification, in order easily to understand claims, arrives the member shown in " claims " and " solving the means of problem " by the numbering remarks corresponding with the member shown in embodiment.But, the member specifically for embodiment by the member shown in claims by no means.
Below, as the related battery pack of embodiments of the present invention, the example that is applied to the supply unit that moped uses is described.Fig. 4 with the battery pack shown in Fig. 5 by the battery module 10 that multiple monocells 1 have been carried out being connected, the circuit substrate 2 being connected with monocell 1 with these are accommodated in to inner shell 20 form.The battery module 10 of this battery pack is connected in series 5 monocells 1, and is configured as 2 row and is connected in parallel, thereby 10 monocells 1 are connected to 5 series connection 2 parallel connections.Battery module 10 utilizes the number of the monocell 1 being connected in series to adjust output voltage, utilizes the number of the monocell 1 being connected in parallel to adjust output current, thereby is set as being suitable for most voltage and the electric current of purposes.Therefore, the number of the not specific monocell that is connected in series, is connected in parallel 1 of battery pack of the present invention.
Battery pack possesses electronic circuit 11, and this electronic circuit 11 is for preventing discharging and recharging, reducing the deteriorated of battery and guaranteeing safety under the abnormal voltage of the each monocell 1 that forms battery module 10.This electronic circuit 11 is installed on circuit substrate 2 and is connected with monocell 1.Thereby electronic circuit 11 is controlled the electric current discharging and recharging and is possessed voltage detecting circuit 19 in order to detect the voltage of monocell 1.The electronic circuit 11 of circuit substrate 2 is connected with the electrode terminal of monocell 1, detects the voltage of monocell 1.The battery pack of Fig. 4 and Fig. 5, in order to detect the voltage of all monocells 1, is connected the electrode terminal of all monocells 1 with circuit substrate 2.This battery pack can prevent that overvoltage from appearring in all monocell l.But, battery pack may not be connected the electrode terminal of all monocells with circuit substrate.For example, using more than 2 or 3 monocells that are connected in series as battery unit, can detect the voltage of each battery unit, detect the voltage of the monocell that forms battery unit.
In addition, the battery pack of Fig. 4 possesses: and the fuse 13 being connected between lead-out terminal 12; Be connected to the heating resistor R between fuse 13,13; With switch element 14, it switches to connection when abnormal, thereby makes electric current flow through heating resistor R, fuse wire 13.Fuse 13 is installed on circuit substrate 2 with switch element 14.Switch element 14 is switched to on-state and fuse wire 13 after the abnormality that monocell 1 detected by the electronic circuit 11 that is installed on circuit substrate 2.For example, if the voltage of any one monocell 1 rises to abnormal voltage, switch element 14 is switched to and connects and fuse wire 13.The switch element 14 of Fig. 4 is connected to the centre of the fuse 13 that is arranged at battery side and outlet side.This switch element 14, can be by the fuse 13 of the current fusing battery side of monocell 1, by the fuse 13 of the current fusing outlet side from outlet side input under on-state.
In addition, circuit substrate 2 not only detects the voltage of monocell 1, also detect various battery informations (such as electric current, temperature, abnormality) thus etc. control the electric current that discharges and recharges, in addition, can also be to the device transmission battery information that connects battery pack.The circuit substrate 2 of realizing foregoing is provided with the telecommunication circuit (not shown) that detects the testing circuit of battery information or transducer, the microcomputer that the signal being detected by testing circuit or transducer is processed and communicate with outside equipment etc.And circuit substrate 2 also can arrange the output switch of MOSFET etc. between lead-out terminal 12, output switch is switched to disconnect under the abnormality of battery and cut off electric current.
Cut apart the vertical view of terminal pad 6X as shown in Figure 6.This is cut apart terminal pad 6X by the 1st 6A of terminal pad portion and approaches the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion that configures forms, and the 1st 6A of terminal pad portion is connected with electronic circuit 11.The 2nd 6B of terminal pad portion is connecting lead wire 3 by soldering.The 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion with notconnect state close to each other be disposed at the surface of insulating substrate 4, between the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion, be provided with soldering space 7, this soldering space 7 is by interconnecting 3 solders that carry out soldering that go between.Soldering space 7 is as shown in the profile of Fig. 7, space for following: solder 30 is flowed from the 2nd 6B of terminal pad portion to the 1st 6A of terminal pad portion, thereby the 2nd 6B of terminal pad portion is connected with the 1st 6A of terminal pad portion, wherein, this solder 30 is by the solder of lead-in wire 3 molten conditions that are connected by soldering with the 2nd 6B of terminal pad portion.
Soldering space 7 is made as slit-shaped by the terminal pad 6X of cutting apart of Fig. 6.Soldering space 7 is made as to cutting apart terminal pad 6X and can passing through the solder 30 of molten condition of slit-shaped, stable and reliably the 1st 6A of terminal pad portion is electrically connected with the 2nd 6B of terminal pad portion.About the interval in soldering space 7, for example for slit, inner width is made as 0.01mm above, below 0.5mm, be preferably made as 0.1mm above, below 0.4mm.Soldering space 7, if the narrower solder 30 of molten condition that can pass through is set to obtain, reliably and stably the 1st 6A of terminal pad portion is electrically connected with the 2nd 6B of terminal pad portion, if arrange widelyr on the contrary, under the state of not soldering, can reliably the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion be made as to notconnect state.But if too narrow, under the state of not soldering, the 1st 6A of terminal pad portion easily contacts with the 2nd 6B of terminal pad portion, in addition, can be difficult to if too wide reliably the 1st 6A of terminal pad portion is electrically connected with the 2nd 6B of terminal pad portion by the solder 30 of molten condition.Therefore,, for soldering space 7, after the viscosity etc. of solder 30 of considering its shape, molten condition, employing is suitable for shape, the space of purposes most.
In addition, circuit substrate 2 is provided with the through hole 8 that inserts lead-in wire 3.Through hole 8 is provided with conductive part 5 at the inner face of the through hole 18 that is arranged at insulating substrate 4, and conductive part 5 is connected with the conductive part 5 of the 2nd surperficial 6B of terminal pad portion that is arranged at insulating substrate 4.Although through hole 8 is connected with the 2nd 6B of terminal pad portion, be not connected with the 1st 6A of terminal pad portion.
Because cut apart the l terminal pad 6A of portion of terminal pad 6X and the 2nd 6B of terminal pad portion in across the mutual unconnected state in soldering space 7, be not electrically connected with the 1st 6A of terminal pad portion so be inserted into the lead-in wire 3 of the not soldering of the through hole 8 of the 2nd 6B of terminal pad portion.Therefore, lead-in wire 3 is being inserted under the state of through hole 8 and not soldering, lead-in wire 3 is not with the 1st 6A of terminal pad portion, electronic circuit 11 is connected.This is because because soldering space 7, the 2 6B of terminal pad portion are not connected with the 1st 6A of terminal pad portion.If lead-in wire 3 is connected with the 2nd 6B of terminal pad portion by soldering, the 2nd 6B of terminal pad portion is connected with the 1st 6A of terminal pad portion.This is because the solder 30 of melting flows to the 1st 6A of terminal pad portion from the 2nd 6B of terminal pad portion, thereby the 1st 6A of terminal pad portion being separated by soldering space 7 is connected with the 2nd 6B of terminal pad portion.Under this state, lead-in wire 3 is connected with electronic circuit 11 with the 1st 6A of terminal pad portion via the 2nd 6B of terminal pad portion.For this structure cut apart terminal pad 6X, lead-in wire 3 through holes 8 that are inserted into circuit substrate 2 can't be connected with electronic circuit 11, but be connected with electronic circuit 11 by soldering.This structure can not be according to the order that is inserted into through hole 8 by lead-in wire 3, but is connected with electronic circuit 11 according to the order of soldering.Therefore,, by specifying the order of soldering, lead-in wire 3 can be connected with electronic circuit 11 according to specific order.
The 2nd 6B of terminal pad portion shown in Fig. 6 is the ring-type arranging around through hole 8, has the 1st 6A of terminal pad portion in the arranged outside of the 2nd 6B of terminal pad portion, between the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion, is provided with soldering space 7.Through hole 8 is slit-shaped and the shape that can insert guide plate 3A.Though not shown, insert the through hole of wire for circular.The arranged outside at both ends at the long side direction that is arranged at the 2nd 6B of terminal pad portion around the through hole 8 of slit-shaped has the 1st 6A of terminal pad portion.A pair of the 1st 6A of terminal pad portion that is arranged at both sides interconnects by conductive part 5, and is connected with electronic circuit 11 via conductive part 5.For Fig. 6 cut apart terminal pad 6X, dwindle the width at the both ends of the 2nd 6B of terminal pad portion, at its arranged outside the 1st 6A of terminal pad portion, the outer peripheral edges of the 2nd 6B of terminal pad portion and the 1st 6A of terminal pad portion are configured to same wire.This is cut apart terminal pad 6X and is provided with multiple the 1st 6A of terminal pad portion in the both sides of the 2nd 6B of terminal pad portion.This cuts apart terminal pad 6X by soldering, and multiple the 1st 6A of terminal pad portion are connected with the 2nd 6B of terminal pad portion.Therefore, lead-in wire 3 can more reliably and stably be connected with electronic circuit 11 with the 1st 6A of terminal pad portion via the 2nd 6B of terminal pad portion.
And then circuit substrate 2, as shown in the profile of Fig. 7, is connected via the through hole 8 that connects insulating substrate 4 the 2nd 6B of terminal pad portion with the conductive part 5 at the back side that is arranged at insulating substrate 4.This structure is connected the two ends of through hole 8 with the conductive part 5 configuring on the two sides of insulating substrate 4., become the structure that links the conductive part 5 on two sides by through hole 8.The 2nd 6B of terminal pad portion of this structure can be fixed on circuit substrate 2 more reliably by the lead-in wire 3 that inserts and be soldered to through hole 8.This is because through hole 8 is firmly fixed at insulating substrate 4 more.Therefore, the battery pack of this circuit substrate 2 has the feature that can further improve vibration resistance intensity.
And then the circuit substrate 2 as shown in the profile of the vertical view of Fig. 6 and Fig. 8, is connected via multiple sub-through holes 9 the multiple of the 2nd 6B of terminal pad portion with the conductive part 5 at the back side that is arranged at insulating substrate 4.Sub-through hole 9 is less than the through hole 8 that inserts lead-in wire 3, and multiple points of the 2nd 6B of terminal pad portion are connected with conductive part 5.
The battery pack that the circuit of Fig. 4 forms, in the electronic circuit 11 that is installed on circuit substrate 2, is provided with the voltage detecting circuit 19 of the voltage that detects each monocell 1, supplies with power for operation from battery module 10 to electronic circuit 11.Therefore,, at the power line 15 of electronic circuit 11, be connected with side of the positive electrode and the negative side of battery module 10 via lead-in wire 3.The battery pack that this circuit forms, in assembling procedure, is connected according to the order of A, B, C, D, E, F in figure lead-in wire 3, thereby can prevents the fault of electronic circuit 11, the fusing of fuse 13 with circuit substrate 2.Because electronic circuit 11 becomes after operating state, detect the voltage of battery, if thereby voltage switches to switch element 14 and connects fuse wire 13 in abnormality, so by the side of the positive electrode of electronic circuit 11 or negative side are finally connected with circuit substrate 2, can prevent the fusing of the fuse 13 in assembling procedure.This is because the electronic circuit 11 becoming before operating state can not switch to connection by switch element 14.Therefore,, for the battery pack that fuse 13 fuses due to lead-in wire 3 the order of connection, the last side of the positive electrode of connecting electronic circuit 11 or the lead-in wire of negative side 3 can prevent the fusing of fuse 13.Therefore, as the terminal pad 6 being connected with side of the positive electrode or the negative side of electronic circuit 11, by only will connecting the terminal pad 6 of any one party of A, F or both sides' lead-in wire 3 in Fig. 4, adopt be divided into as shown in Figure 6 the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion structure cut apart terminal pad 6X, even the terminal pad 6 that connects the lead-in wire 3 shown in B, C, D, E in Fig. 4 is adopted to the existing structure shown in Fig. 2, can there is not electrically contacting of terminal pad 6 and lead-in wire 3 yet, the fusing of fuse 13 can be prevented, and high-tension applying can be prevented.In addition, due to the power supply of the lead-in wire 3 electron gain circuit 11 from maximum potential side, therefore cutting apart terminal pad 6X by utilization is not electrically connected the lead-in wire 3 of maximum potential side, even thereby the terminal pad 6 that connects the lead-in wire 3 shown in B, C, D, E is adopted to the existing structure shown in the profile of Fig. 3, also can prevent the fusing of the fuse 13 in assembling procedure.
For example, also can be only by Fig. 4, connect the terminal pad 6 of the lead-in wire 3 shown in the F of maximum potential side of battery module 10, adopt be divided into as shown in Figure 6 the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion structure cut apart terminal pad 6X.The terminal pad 6 that connects the terminal pad 6 of the lead-in wire 3 shown in the A of potential minimum side of battery module 10 and connect other lead-in wire 3 can be also the structure shown in Fig. 3.
In addition, under the state that the power line of electronic circuit 11 15 is connected with battery module 10, the lead-in wire 3 being connected with the tie point 16 of monocell 1 is connected with electronic circuit 11 according to the order of B, C, D, E in Fig. 4, electronic circuit 11 also can not detect the abnormal voltage of monocell 1, the abnormal voltage of battery detected and switch element 14 is switched to the situation of connecting fuse wire 13 thereby also can there is not electronic circuit 11.Therefore, only the terminal pad 6 that connects B, C, D, E in Fig. 4 is adopted be divided into the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion structure cut apart terminal pad 6X, the terminal pad 6 that connects A, F is adopted to the existing structure shown in Fig. 3, also can prevent the fusing of the fuse 13 in assembling procedure.
Therefore, battery pack of the present invention without necessarily by the 3 all terminal pads 6 that are connected with circuit substrate 2 that go between, employing be separated into the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion structure cut apart terminal pad 6X.The simplest circuit substrate 2 is as follows: only by the terminal pad 6 being connected with the power line 15 of the side of the positive electrode of electronic circuit 11, employing be divided into the 1st 6A of terminal pad portion and the 2nd 6B of terminal pad portion structure cut apart terminal pad 6X, other terminal pads 6 adopt the existing structure shown in Fig. 3.
Industrial applicibility
The power supply that battery pack involved in the present invention can be suitable for using as electric bicycle, small electric motorcycle utilizes.
Symbol description
1 monocell
2 circuit substrates
3 lead-in wires
3A guide plate
4 insulating substrates
5 conductive parts
6 terminal pads
6X is cut apart terminal pad
6A the 1st terminal pad portion
6B the 2nd terminal pad portion
7 soldering spaces
8 through holes
9 sub-through holes
10 battery modules
11 electronic circuits
12 lead-out terminals
13 fuses
14 switch elements
15 power lines
16 tie points
18 through holes
19 voltage detecting circuits
20 shells
30 solders
101 monocells
102 circuit substrates
103 lead-in wires
110 battery modules
111 electronic circuits
113 fuses
114 switch elements
115 power lines
202 circuit substrates
203 lead-in wires
204 insulating substrates
205 conductive parts
206 terminal pads
218 through holes
302 circuit substrates
303 lead-in wires
304 insulating substrates
306 terminal pads
308 through holes
318 connecting holes
R heating resistor
Claims (9)
1. a battery pack, possesses:
The multiple monocells (1) that are mutually connected in series; With
Circuit substrate, it is connected with the electrode terminal of this monocell (1) via the lead-in wire (3) being made up of guide plate (3A) or wire,
Described circuit substrate (2), be provided with conductive part (5) on the surface of insulating substrate (4), at conductive part (5), electronic circuit (11) is installed, and, circuit substrate (2) is the surface that multiple terminal pads (6) are arranged at insulating substrate (4) by the conductive part (5) being connected with described electronic circuit (11) and be connected with described monocell (1) via described lead-in wire (3)
At least one of described multiple terminal pads (6) is made as and cuts apart terminal pad (6X), this cut apart terminal pad (6X) by the 1st terminal pad portion (6A) being connected with described electronic circuit (11) and by soldering connecting lead wire (3) the 2nd terminal pad portion (6B) form
The described terminal pad (6X) of cutting apart, described the 1st terminal pad portion (6A) and described the 2nd terminal pad portion (6B) are disposed to the surface of insulating substrate (4) with notconnect state, and, between the 1st terminal pad portion (6A) and the 2nd terminal pad portion (6B), be provided with by soldering the go between solder (30) of (3) and interconnective soldering space (7)
And, described circuit substrate (2) has with described the 2nd terminal pad portion (6B) and is connected and inserts the through hole (8) of described lead-in wire (3), the lead-in wire (3) that is inserted into this through hole (8) is connected with the 2nd terminal pad portion (6B) by soldering, and, by described lead-in wire (3) being soldered to the solder (30) of the 2nd terminal pad portion (6B), described the 1st terminal pad portion (6A) of the both sides that are positioned at soldering space (7) is connected with described the 2nd terminal pad portion (6B), described lead-in wire (3) is connected with the electronic circuit (11) of described circuit substrate (2) with the 2nd terminal pad portion (6B) via the 1st terminal pad portion (6A).
2. battery pack according to claim 1, wherein,
Form battery modules (10) by described multiple monocells (1) of being mutually connected in series, and cut apart terminal pad (6X) described in only the terminal pad (6) that connects the lead-in wire (3) being connected with the outlet side of the maximum potential of described battery module (10) being made as.
3. battery pack according to claim 1, wherein,
Form battery module (10) by the described multiple monocells (1) that are mutually connected in series, and cut apart terminal pad (6X) described in the terminal pad (6) that connects the lead-in wire (3) being connected with the tie point (16) of described multiple monocells (1) is made as.
4. according to the battery pack described in any one in claim 1～3, wherein,
Described soldering space (7) is slit-shaped, and the inner width of slit is more than 0.01mm, below 0.5mm.
5. according to the battery pack described in any one in claim 1～4, wherein,
Described the 2nd terminal pad portion (6B) is the ring-type arranging around described through hole (8), there is the 1st terminal pad portion (6A) in the arranged outside of the 2nd terminal pad portion (6B), between the 1st terminal pad portion (6A) and the 2nd terminal pad portion (6B), be provided with soldering space (7).
6. according to the battery pack described in any one in claim 1～5, wherein,
Described the 2nd terminal pad portion (6B) is connected with the conductive part (5) at the back side that is arranged at described insulating substrate (4) via the through hole (8) that connects insulating substrate (4).
7. according to the battery pack described in any one in claim 1～6, wherein,
Described the 2nd terminal pad portion (6B) is connected with the conductive part (5) at the back side that is arranged at described insulating substrate (4) via multiple sub-through holes (9).
8. according to the battery pack described in any one in claim 1～7, wherein,
The electronic circuit (11) that is installed on described circuit substrate (2) possesses voltage detecting circuit (19), and this voltage detecting circuit (19) detects the voltage of each monocell (1).
9. according to the battery pack described in any one in claim 1～8, wherein,
The electronic circuit (11) that is installed on described circuit substrate (2) possesses the voltage detecting circuit (19) of the voltage that detects each monocell (1), with supply with the side of the positive electrode of power line (15) of power for operation and terminal pad (6) that any one party or the both sides of negative side are connected to this voltage detecting circuit (19) and cut apart terminal pad (6X) described in being
Described power line (15) is connected with monocell (1) with described lead-in wire (3) via described the 1st terminal pad portion (6A), described the 2nd terminal pad portion (6B).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012285106A JP6022348B2 (en) | 2012-12-27 | 2012-12-27 | Battery pack |
| JP2012-285106 | 2012-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103904380A true CN103904380A (en) | 2014-07-02 |
| CN103904380B CN103904380B (en) | 2017-05-10 |
Family
ID=50995599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310726333.8A Active CN103904380B (en) | 2012-12-27 | 2013-12-25 | Battery pack |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6022348B2 (en) |
| CN (1) | CN103904380B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789540A (en) * | 2014-12-25 | 2016-07-20 | 宁德时代新能源科技股份有限公司 | Connection sheet for battery pack |
| CN107507951A (en) * | 2016-06-14 | 2017-12-22 | 福特全球技术公司 | Electrical interconnections for battery unit |
| CN108023052A (en) * | 2016-11-02 | 2018-05-11 | 通用汽车环球科技运作有限责任公司 | Battery module and its manufacture method with resistance welding sense wire contact pin |
| CN115516692A (en) * | 2020-08-11 | 2022-12-23 | 株式会社Lg新能源 | Battery device and method for manufacturing same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101913786B1 (en) * | 2015-07-21 | 2018-10-31 | 주식회사 엘지화학 | Battery Module for Direct Connection Structure Between Terminal Plate and Battery Management System |
| DE102016120834A1 (en) * | 2016-11-02 | 2018-05-03 | E-Seven Systems Technology Management Ltd | Board for connecting battery cells |
| KR102357835B1 (en) | 2017-01-26 | 2022-02-04 | 삼성에스디아이 주식회사 | Battery pack |
| KR102321513B1 (en) * | 2018-08-21 | 2021-11-02 | 주식회사 엘지에너지솔루션 | Battery Module Having Bus-Bar Plate |
| CN115297605A (en) * | 2022-09-05 | 2022-11-04 | 厦门新能达科技有限公司 | Circuit board, battery management system and battery pack |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004327645A (en) * | 2003-04-24 | 2004-11-18 | Fuji Electric Device Technology Co Ltd | Printed board |
| JP2009064919A (en) * | 2007-09-05 | 2009-03-26 | Sony Corp | Substrate, circuit board and battery pack |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07235757A (en) * | 1994-02-23 | 1995-09-05 | Matsushita Electric Ind Co Ltd | Printed wiring board |
| JPH11214833A (en) * | 1998-01-22 | 1999-08-06 | Sansha Electric Mfg Co Ltd | Printed wiring board |
| JP2005311049A (en) * | 2004-04-21 | 2005-11-04 | Kokusan Denki Co Ltd | Printed wiring board and printed wiring board mounted with electronic parts |
| JP2007280872A (en) * | 2006-04-11 | 2007-10-25 | Sony Corp | Cell battery pack and electrical connector |
| KR101254903B1 (en) * | 2011-06-07 | 2013-04-18 | 삼성에스디아이 주식회사 | Battery pack with fuse part |
-
2012
- 2012-12-27 JP JP2012285106A patent/JP6022348B2/en active Active
-
2013
- 2013-12-25 CN CN201310726333.8A patent/CN103904380B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004327645A (en) * | 2003-04-24 | 2004-11-18 | Fuji Electric Device Technology Co Ltd | Printed board |
| JP2009064919A (en) * | 2007-09-05 | 2009-03-26 | Sony Corp | Substrate, circuit board and battery pack |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789540A (en) * | 2014-12-25 | 2016-07-20 | 宁德时代新能源科技股份有限公司 | Connection sheet for battery pack |
| CN107507951A (en) * | 2016-06-14 | 2017-12-22 | 福特全球技术公司 | Electrical interconnections for battery unit |
| CN107507951B (en) * | 2016-06-14 | 2022-06-14 | 福特全球技术公司 | Electrical interconnect for battery cell |
| CN108023052A (en) * | 2016-11-02 | 2018-05-11 | 通用汽车环球科技运作有限责任公司 | Battery module and its manufacture method with resistance welding sense wire contact pin |
| DE102017125469B4 (en) | 2016-11-02 | 2024-07-18 | GM Global Technology Operations LLC | BATTERY MODULE WITH RESISTANCE WELDED SENSING TABS |
| CN115516692A (en) * | 2020-08-11 | 2022-12-23 | 株式会社Lg新能源 | Battery device and method for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6022348B2 (en) | 2016-11-09 |
| JP2014127418A (en) | 2014-07-07 |
| CN103904380B (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103904380A (en) | Battery pack | |
| US10003107B2 (en) | Power source device | |
| US10050315B2 (en) | Battery module with fusible conductors | |
| JP6200954B2 (en) | Energy storage device | |
| US8795865B2 (en) | Battery pack | |
| US10319494B2 (en) | Multi-functional busbar with interstitial passages | |
| JP7339252B2 (en) | FLEXIBLE FLAT CABLE WITH PROTECTIVE ELEMENT MOUNTING, BATTERY MODULE AND METHOD FOR MANUFACTURING FLEXIBLE FLAT CABLE WITH PROTECTIVE ELEMENT MOUNTING | |
| CN110226246B (en) | Bus bar assembly for battery system | |
| KR20160131265A (en) | Battery pack | |
| CN110710017A (en) | Battery | |
| US10199632B2 (en) | Interconnect for battery pack protection | |
| EP2763205A1 (en) | Cap cover and battery pack including the same | |
| EP3065195B1 (en) | Secondary battery | |
| KR102459621B1 (en) | Battery pack | |
| EP2833432A2 (en) | Battery pack | |
| KR102239935B1 (en) | Short-circuiting element | |
| KR102860575B1 (en) | Battery module and battery pack including the same | |
| EP3188286A1 (en) | Battery assembly with resistive compensation traces between battery terminals | |
| TWI653796B (en) | Short-circuit element and short circuit | |
| JP7072910B2 (en) | Battery module that can improve safety | |
| KR101001447B1 (en) | Battery cell voltage sensing pad, protective circuit module and battery pack of a secondary battery comprising the same, and secondary battery pack assembly method | |
| KR102007777B1 (en) | Battery pack system with Integration Mount Fuse apparatus for circuit breaking over-current in Sensing Assembly Structure | |
| KR20130042813A (en) | Battery pack system with fuse apparatus for circuit breaking over-current in sensing assembly structure | |
| KR20070108758A (en) | Battery pack manufacturing device | |
| CN103620821A (en) | Connector for producing an electrically conductive connection between at least three terminals of battery cells |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230907 Address after: Osaka, Japan Patentee after: Panasonic New Energy Co.,Ltd. Address before: Japan's Osaka Moriguchi city Beijing Sakamoto 2 D eyes 5 times 5 Patentee before: Sanyo Electric Co.,Ltd. |
|
| TR01 | Transfer of patent right |