CN103904380B - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN103904380B CN103904380B CN201310726333.8A CN201310726333A CN103904380B CN 103904380 B CN103904380 B CN 103904380B CN 201310726333 A CN201310726333 A CN 201310726333A CN 103904380 B CN103904380 B CN 103904380B
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- China
- Prior art keywords
- pan portion
- connection
- lead
- terminal pad
- 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.)
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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
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (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 circuit substrate of the electronic circuits such as voltage detecting circuit of installing is via lead and the company of series connection
The battery pack that the multiple monocells for connecing are connected, more particularly to a kind of electric bicycle, small electric motorcycle etc. of being most suitable for
The battery pack of power supply.
Background technology
The electrical equipment for obtaining electric power to drive from battery pack with small electric motorcycle, electric bicycle etc. it is general
And, just seeking the high output of battery pack.In such battery pack, in order to obtain big output, multiple cells in series are connected
Fetch raising output voltage.Additionally, as monocell using big lithium ion secondary monocell of the capacity of unit volume etc..
In the battery pack using multiple monocells, in order to use each monocell steadily in the long term, additionally, bad in order to reduce
Change, the management of each monocell becomes important.For the battery pack, for example, detected simultaneously using electronic circuits such as voltage detecting circuits
The voltage of monitoring monocell, limits the current value of discharge and recharge, or stopping discharge and recharge protecting if voltage exceedes certain scope
Shield battery.The battery pack is needed the circuit substrate of installation electronic circuit via guide plate (lead plate) or wire (lead
Wire lead (lead)) is connected with each monocell.The battery pack is as shown in figure 1, by each monocell being connected in series with each other
101 electrode terminal is connected via lead 103 with circuit substrate 102.Further, for the electricity to being installed on circuit substrate 102
Electronic circuit 111 supplies power for operation, by the side of the positive electrode and negative side of the power line 115 of electronic circuit 111, with the list being connected in series
The side of the positive electrode of battery 101 is connected with negative side.
More than battery pack multiple monocells 101 are connected in series as battery module 110, and via lead 103 by electricity
Base board 102 is assembled with the electrode terminal of the monocell 101 for constituting the battery module 110 and formed.In assembling procedure, will
The lead 103 and circuit substrate 102 being connected with battery module 110 is connected by soldering.Each lead 103 is needed according to specific
Order is connected with circuit substrate 102, different according to the order of connection, can produce following disadvantage：The voltage higher than regulation is applied in
The fuse 113 arranged in battery pack is fused to the electronic circuit 111 for being installed on circuit substrate 102, or than pressure
High voltage is imported into electronic circuit 111 and produces failure etc..For example, in FIG, if lead 103 not according to A, B,
C's is linked in sequence, in the A of connection ground wire with the F of the power line 115 of side of the positive electrode so as to electronic circuit 111 is changed into work
Make after state, connect the lead 103 of E, then electronic circuit 111 can not be correctly detected the voltage of monocell 101, be judged to single electricity
Pond 101 rises to abnormal voltage, and switch element 114 is switched on, electric current flow through fuse 113,113 and switch element 114 it
Between arrange adding thermal resistance R, produce fuse 113 fusing etc. disadvantage.If additionally, the lead 103 for being also not connected with D just connects E
Lead 103, then the voltage difference of input terminal become very large, be imported into the defeated of electronic circuit 111 more than pressure voltage
Enter side and produce the disadvantage of failure etc..Because electronic circuit is to envision the voltage detecting of a monocell and selected, thus pin
The high-tension patience to be formed is connected in series to multiple monocells, is not given in design and is considered, as a result, due to applying
Plus high voltage more than rated value and there is the destroyed danger of element.
In order to prevent the disadvantage of the above, develop battery module is connected with circuit substrate using specifically-built connector
The battery pack for connecing.(with reference to patent document 1)
Citation
Patent document
Patent document 1：TOHKEMY 2011-243426 publications
The content of the invention
The invention problem to be solved
Using the battery pack of specific connector, simply battery module can be connected with circuit substrate.But, make
With the battery pack of connector, in addition to component costs increase, also there is the loose contact that contact can not be completely eliminated.
Particularly, by the connector cost uprises of special designs, have the shortcomings that component costs are uprised.The shortcoming can pass through will be with list
The lead of battery connection is soldered in particular order circuit substrate to eliminate.In order to realize the method, special circuit base
Plate needs especially the terminal pad (land) of the conductive part of connecting lead wire to be set to into specific shape.Fig. 2 is illustrated the ability to by soldering
The circuit substrate 202 that lead 203 is connected in particular order with the electronic circuit of circuit substrate 202.The circuit substrate
202, in the state of lead 203 to be inserted into the connecting hole 218 of circuit substrate 202, what is and with electronic circuit be not connected leads
The terminal pad 206 in electric portion 205 connects, by the way that lead 203 is soldered to into terminal pad 206 so as to be connected with terminal pad 206.To draw
Line is inserted into the circuit substrate that connecting hole is just connected with electronic circuit, needs the order for specifying lead to insert connecting hole, but will
Battery module is linked to after ad-hoc location with circuit substrate, it is impossible to which all of lead is inserted in particular order into connection
Hole.Additionally, allow to be inserted into connecting hole in particular order, be inserted into connecting hole lead can not reliably with electricity
The terminal pad of electronic circuit is connected.Therefore, the terminal pad of connecting lead wire in particular order, need using by soldering with
The construction that lead is connected.The circuit substrate 202 of Fig. 2 will be not provided with conduction in order to realize the purpose, around connecting hole 218
The terminal pad 206 in portion is arranged at surface.Lead 203 to being inserted into connecting hole 218 carries out soldering, and the terminal pad 206 passes through pricker
Material is connected with lead 203.Therefore, by order lead 203 being soldered to into terminal pad 206, can be according to the suitable of soldering
Sequence is connected lead 203 with terminal pad 206.
But, the circuit substrate 202 of Fig. 2 is because lead 203 to be soldered to the connection on the surface for being attached to insulating substrate 204
Disk 206 is being fixed, so haveing the shortcomings that because the terminal pads 206 such as vibrations, impact are easily peeled off from insulating substrate 204.
The shortcoming by circuit substrate 302 as shown in Figure 3 like that by the terminal pad 306 being connected with electronic circuit be arranged at insulation base
The through hole 308 of material 304 is connected, and lead 303 is inserted into into the through hole 308 carry out soldering be configured to eliminate.But,
The construction, can not be according to specific because being connected with terminal pad 306 in the state of lead 303 to be inserted into connecting hole 318
Order lead 303 is connected with terminal pad 306, as it was previously stated, the blown fuse of battery pack can be produced or electricity is installed on
The disadvantage that the electronic circuit of base board breaks down etc..
The present invention is exactly developed for the purpose of further solving the shortcoming of the above.The present invention free-revving engine be
Offer is a kind of can be attached lead with the terminal pad of circuit substrate according to the order of soldering with preferably order, and energy
The battery pack of the stripping of the terminal pad of enough effectively prevention connecting lead wires.
The means to solve the problem and invention effect
The battery pack of the present invention possesses：The multiple monocells 1 being connected in series with each other；With circuit substrate 2, it is via by guide plate
The lead 3 that 3A or wire are constituted is connected with the electrode terminal of the monocell 1.Circuit substrate 2 is arranged on the surface of insulating substrate 4
There is conductive part 5, electronic circuit 11 is installed in conductive part 5.And, circuit substrate 2 will be connected and Jing with electronic circuit 11
The i.e. multiple terminal pads 6 of conductive part 5 being connected with monocell 1 by lead 3 are arranged at the surface of insulating substrate 4.Multiple terminal pads 6
At least one using by the be connected with electronic circuit 11 the 1st be connected pan portion 6A and by soldering connecting lead wire 3 the 2nd connect
Connect segmentation terminal pad 6X of pan portion 6B composition.Segmentation terminal pad 6X, pan portion 6B is connected with non-company by the 1st connection pan portion 6A with the 2nd
The state of connecing is configured at the surface of insulating substrate 4, also, between the 1st connection pan portion 6A and the 2nd connection pan portion 6B, is provided with logical
The solder 30 of crossing solder tails 3 and the soldering space 7 that is connected with each other.Also, circuit substrate 2 have be connected pan portion 6B phase with the 2nd
Connection and the through hole 8 of lead 3 is inserted, the lead 3 for being inserted into the through hole 8 is connected pan portion 6B and is connected by soldering with the 2nd, and
And, by the solder 30 that lead 3 is soldered to the 2nd connection pan portion 6B, by positioned at the 1st of the both sides in soldering space 7 the connection pan portion
6A is connected pan portion 6B and is connected with the 2nd, by lead 3 via the 1st connection pan portion 6A and the 2nd connection pan portion 6B and circuit substrate 2
Electronic circuit 11 is connected.
Battery pack above has following feature：Can be according to the order of soldering by the terminal pad phase of lead and circuit substrate
Connection, simultaneously effective prevents the stripping of the terminal pad of solder tails.This is because：The circuit substrate of battery pack above possesses
By the be connected with electronic circuit the 1st be connected pan portion and by soldering connecting lead wire the 2nd connection cutting connection that constitutes of pan portion
Disk is connect, is connected pan portion in the 1st be connected with electronic circuit and is arranged and the 2nd connection pan portion of through hole with connecting lead wire between
There is soldering space, so in the state of lead is connected with through hole, lead is not via the 2nd connection pan portion and the 1st connection
Pan portion and be connected with electronic circuit, by be inserted into the 2nd connection pan portion through hole lead be soldered to the 2nd connection pan portion after, the 1st
Connection pan portion is connected pan portion and is connected by solder with the 2nd, so as to lead is connected with electronic circuit.
The battery pack of the present invention can be that battery module 10 is made up of the multiple monocells 1 being connected in series with each other, and only will
The terminal pad 6 of the lead 3 that connection is connected with the outlet side of the maximum potential of the battery module 10 is set to split terminal pad 6X.
Battery pack above, will be arranged in multiple terminal pads of circuit substrate, connects with battery module most using
The terminal pad of the lead that the outlet side of high potential is connected is set to split the simple structure of terminal pad, while can be by multiple leads
According to the terminal pad that preferable order passes through soldering connection to circuit substrate, the electronic circuit being effectively prevented in assembling procedure
The disadvantage of failure, the fusing of fuse etc..
The battery pack of the present invention can be that battery module 10 is made up of the multiple monocells 1 being connected in series with each other, and will even
The terminal pad 6 for connecing the lead 3 being connected with the tie point 16 of multiple monocells 1 is set to split terminal pad 6X.
More than battery pack, by being arranged in multiple terminal pads of circuit substrate, the connection of connection and multiple batteries
Multiple leads can be passed through soldering connection by the terminal pad of the lead that point is connected using segmentation terminal pad according to preferable order
To the terminal pad of circuit substrate, the disadvantage of the failure of the electronic circuit being reliably prevented in assembling procedure, fusing of fuse etc..
The battery pack of the present invention can be that soldering space 7 is set to into slit-shaped, and by the inner width of slit be set to 0.01mm with
Upper, below 0.5mm.
The battery pack, can reliably and stably by lead and electronic circuit by the way that lead is soldered to into the 2nd connection pan portion
It is connected.This is because the 1st connection pan portion can be connected into pan portion with the 2nd by soldering reliably connecting.
The battery pack of the present invention can the 2nd connection pan portion 6B is set to into the ring-type of the setting around through hole 8, the 2nd
The 1st connection pan portion 6A is provided with the outside of connection pan portion 6B, is provided between the 1st connection pan portion 6A and the 2nd connection pan portion 6B
Soldering space 7.
Lead can be soldered to the 2nd connection pan portion by battery pack above, and the 1st connection pan portion is connected into pan portion with the 2nd
Reliably connect.This is because, the solder of the 2nd connection pan portion is soldered to around flowing, it is connected so as to be connected pan portion with the 1st
Connect.
The present invention battery pack can be, by the 2nd connection pan portion 6B via insertion insulating substrate 4 through hole 8 be arranged at
The conductive part 5 at the back side of insulating substrate 4 is connected.
The battery pack has the feature that can further improve vibration resistance intensity.This is because, the 2nd connection pan portion is via logical
Hole is connected with the conductive part on the two sides for being attached to insulating substrate.
The present invention battery pack can be, by the 2nd connection pan portion 6B via multiple sub-through holes 9 be arranged at insulating substrate 4
The conductive part 5 at the back side be connected.
2nd connection pan portion more reliably can be fixed on insulating substrate by the battery pack.
The battery pack of the present invention can be that the electronic circuit 11 for being installed on circuit substrate 2 possesses the electricity for detecting each monocell 1
The voltage detecting circuit 19 of pressure.
The battery pack detects the voltage of monocell, Neng Gou by using the voltage detecting circuit for being installed on circuit substrate
Discharge and recharge is carried out while the voltage of control monocell.
The battery pack of the present invention can be that the electronic circuit 11 for being installed on circuit substrate 2 possesses the electricity for detecting each monocell 1
The voltage detecting circuit 19 of pressure, by side of the positive electrode and negative pole with the power line 15 that power for operation is supplied to the voltage detecting circuit 19
Power line 15 is connected pan portion by the terminal pad 6 that the either or both of side is connected using segmentation terminal pad 6X via the 1st
6A, the 2nd connect pan portion 6B and lead 3 and are connected with monocell 1.
The battery pack is because can control to carry out the moment of power supply from monocell to electronic circuit, it is possible to reliability
Prevent failure, the fusing of fuse of electronic circuit.
Description of the drawings
Fig. 1 is the block diagram of existing battery pack.
Fig. 2 is the top view of of the terminal pad for representing existing circuit substrate.
Fig. 3 is the profile of another of the terminal pad for representing existing circuit substrate.
Fig. 4 is the block diagram of the battery pack involved by one embodiment of the present invention.
Fig. 5 is the constructed profile of the battery pack involved by one embodiment of the present invention.
Fig. 6 is the plane of the segmentation terminal pad of the circuit substrate for representing the battery pack involved by one embodiment of the present invention
Figure.
Fig. 7 is the profile for representing the state being soldered in lead on the circuit substrate shown in Fig. 6, is comparable to Fig. 6's
The figure of VII-VII line sections.
Fig. 8 is the profile for representing the state being soldered in lead on the circuit substrate shown in Fig. 6, is comparable to Fig. 6's
The figure of VIII-VIII line sections.
Specific embodiment
Hereinafter, embodiments of the invention are illustrated based on accompanying drawing.But, embodiment described below is for incite somebody to action this
The example of the battery pack that the technological thought of invention embodies, the battery pack of the present invention is not specifically for following battery pack.Further,
The specification is attached the numbering corresponding with the component shown in embodiment to " right will for claims easy to understand
Seek book " and " means to solve the problem " shown in component.But, by no means by the component shown in claims specifically for enforcement
The component of example.
Hereinafter, as the battery pack involved by embodiments of the present invention, the power supply to being applied to moped is filled
The example put is illustrated.Fig. 4 and the battery pack shown in Fig. 5 by the battery module 10 for being connected multiple monocells 1 and
Circuit substrate 2 and constitute on these shells 20 for being accommodated in inside that monocell 1 is connected.The battery module 10 of the battery pack
5 monocells 1 are connected in series, and are configured as 2 row and be connected in parallel, so as to 10 monocells 1 are connected as into 5 series connection
2 is in parallel.Battery module 10 adjusts output voltage using the number of the monocell 1 being connected in series, using the single electricity being connected in parallel
The number in pond 1 adjusting output current, so as to be set as being most suitable for the voltage of purposes and electric current.Therefore, battery pack of the invention
The not specific number of monocell 1 for being connected in series, being connected in parallel.
Monocell 1 is lithium ion battery.Using lithium ion battery as monocell 1 battery pack, can increase relative to
The output of volume and weight.But, as monocell, it is also possible to replaced using lithium polymer battery, Ni-MH battery etc. lithium from
Sub- battery.Therefore, the present invention can use what is can charged to own not by monocell specifically for lithium ion battery as monocell
Battery.Further, on monocell 1, it is provided with the temperature sensor (not shown) for temperature detection.Temperature sensor according to
Each monocell is arranging, or can also be only used as being located at the monitoring of the monocell for representing position and use and arrange.TEMP
After device is connected with circuit substrate 2, by the electronic circuit 11 for being installed on circuit substrate 2, electricity is controlled according to the temperature of monocell 1
The electric current of the discharge and recharge of pond group.
Battery pack possesses electronic circuit 11, and the electronic circuit 11 is used to prevent each monocell 1 of composition battery module 10
Discharge and recharge under abnormal voltage, the deterioration for reducing battery and guarantee safety.The electronic circuit 11 is installed on circuit substrate 2
And be connected with monocell 1.Electronic circuit 11 possesses electricity to detect the voltage of monocell 1 so as to control the electric current of discharge and recharge
Pressure detection circuit 19.The electronic circuit 11 of circuit substrate 2 is connected to detect the electricity of monocell 1 with the electrode terminal of monocell 1
Pressure.The battery pack of Fig. 4 and Fig. 5 in order to detect the voltage of all of monocell 1, by the electrode terminal of all of monocell 1 and electricity
Base board 2 is connected.The battery pack is prevented from all of monocell l and overvoltage occurs.But, battery pack is not necessarily required to institute
The electrode terminal of some monocells is connected with circuit substrate.For example, by be connected in series 2 or the monocell of more than 3
As battery unit, the voltage of each battery unit can be detected to detect the voltage of the monocell for constituting battery unit.
Additionally, the battery pack of Fig. 4 possesses：The fuse 13 being connected between lead-out terminal 12；It is connected to fuse 13,13
Between adding thermal resistance R；With switch element 14, it switches to connection in exception, so as to make current flow through adding thermal resistance R, melts
Disconnected fuse 13.Fuse 13 is installed on circuit substrate 2 with switch element 14.Switch element 14 is by being installed on circuit substrate 2
Electronic circuit 11 to detect and be switched to on-state and fuse wire 13 after the abnormality of monocell 1.For example, if appointing
The voltage of one monocell 1 of meaning rises to abnormal voltage, then switch element 14 is switched to connect and fuse wire 13.Fig. 4
Switch element 14 be connected to the centre of the fuse 13 for being arranged at battery side and outlet side.The switch element 14 is in on-state
Under, the fuse 13 of the current fusing battery side of monocell 1 can be passed through, by the current fusing outlet side being input into from outlet side
Fuse 13.
Additionally, circuit substrate 2 not only detects the voltage of monocell 1, also detect various battery informations (for example electric current, temperature,
Abnormality) etc. so as to control the electric current of discharge and recharge, additionally it is possible to the device transmission battery information of connection battery pack.It is real
The circuit substrate 2 of existing the above is provided with the detection circuit or sensor of detection battery information, to by detection circuit or sensing
Microcomputer that the signal that device is detected is processed and the telecommunication circuit (not shown) communicated with outside equipment
Deng.And, circuit substrate 2 can also arrange the output switch of MOSFET etc. between lead-out terminal 12, in the abnormal shape of battery
Under state output switch is switched to disconnection to cut off electric current.
Circuit substrate 2 is connected via lead 3 with battery module 10.Lead 3 passes through weldering with the electrode terminal of each monocell 1
Connect and be connected, be connected by soldering with circuit substrate 2.In the battery pack of Fig. 5, extend the lead for being connected in parallel monocell 1
3, it is connected with circuit substrate 2.Lead 3 is the guide plate 3A being made up of metallic plate.Guide plate 3A is very thin and can increase current capacity.
But, lead can also adopt wire.Lead 3 is inserted into the through hole 8 for being arranged at circuit substrate 2, and by soldering and circuit
Substrate 2 is connected.
Circuit substrate 2 arranges the metal formings such as Copper Foil as conductive part 5 on the surface of insulating substrate 4, will realize electronic circuit
The terminal of 11 electronic unit is connected with the conductive part 5 by soldering.Further, circuit substrate 2 by soldering connection in order to be drawn
Line 3, by the terminal pad 6 being made up of conductive part 5 surface of insulating substrate 4 is arranged at.Pass through soldering connection lead in the terminal pad 6
3, and lead 3 is connected with electronic circuit 11 in this condition.Circuit substrate 2 is in order to connect what is be connected with battery module 10
Multiple leads 3 and possess multiple terminal pads 6, by least one of these terminal pads 6 using segmentation terminal pad 6X, the cutting connection
Connect disk 6X by the be connected with electronic circuit 11 the 1st be connected pan portion 6A and by soldering connecting lead wire 3 the 2nd connection pan portion 6B
Constitute.
The top view of segmentation terminal pad 6X is as shown in Figure 6.Segmentation terminal pad 6X is by the 1st connection pan portion 6A and the close 1st
The 2nd connection pan portion 6B for connecting pan portion 6A and configuring is constituted, and the 1st connection pan portion 6A is connected with electronic circuit 11.2nd terminal pad
Portion 6B connecting lead wire 3 by soldering.1st connection pan portion 6A is connected pan portion 6B and is closely matched somebody with somebody with notconnect state with the 2nd
The surface of insulating substrate 4 is placed in, between the 1st connection pan portion 6A and the 2nd connection pan portion 6B, soldering space 7 is provided with, the soldering
Space 7 is connected with each other by carrying out the solder of soldering to lead 3.Soldering space 7 is following sky as depicted in the cross-sectional view of figure 7
Gap：Solder 30 is made from the 2nd connection pan portion 6B to the 1st connection pan portion 6A flowing, so as to connect pan portion 6B and the 1st terminal pad by the 2nd
Portion 6A is connected, wherein, the solder 30 is the pricker that lead 3 is connected into the molten condition that pan portion 6B is connected by soldering with the 2nd
Material.
Soldering space 7 is set to slit-shaped by segmentation terminal pad 6X of Fig. 6.Soldering space 7 is set to into the cutting connection of slit-shaped
Meeting disk 6X can pass through the solder 30 of molten condition, stablize and reliably the 1st connection pan portion 6A is connected into pan portion 6B with the 2nd and is electrically connected
Connect.With regard to the interval in soldering space 7, inner width is set to into such as more than 0.01mm, below 0.5mm for slit, is preferably set
For more than 0.1mm, below 0.4mm.Soldering space 7, if arrange it is narrower if can by the solder 30 of molten condition, it is reliable and
Stably the 1st connection pan portion 6A is connected into the electrical connection of pan portion 6B with the 2nd, if arranging wider on the contrary, in the state of non-soldering
Under reliably the 1st connection pan portion 6A can be connected pan portion 6B and is set to notconnect state with the 2nd.But, if excessively narrow, not
The 1st connection pan portion 6A is connected pan portion 6B and easily contacts with the 2nd in the state of soldering, additionally, can be difficult to by melting if excessively wide
1st connection pan portion 6A is reliably connected the electrical connection of pan portion 6B with the 2nd by the solder 30 for melting state.Therefore, for soldering space 7,
Using shape, the space for being most suitable for purposes after its shape, viscosity of solder 30 of molten condition etc. is considered.
Additionally, circuit substrate 2 is provided with the through hole 8 of insertion lead 3.Through hole 8 is being arranged at the through hole 18 of insulating substrate 4
Inner face be provided with conductive part 5, the conductive part 5 that conductive part 5 is connected into pan portion 6B with the 2nd of the surface for being arranged at insulating substrate 4 the
It is connected.Although through hole 8 is connected pan portion 6B and is connected with the 2nd, the connection of pan portion 6A is not connected with the 1st.
Because l connections pan portion 6A of segmentation terminal pad 6X is connected pan portion 6B with the 2nd and is in across soldering space 7 mutually not
The state of connection, so the lead 3 for being inserted into the non-soldering of the through hole 8 of the 2nd connection pan portion 6B is not connected pan portion 6A electricity with the 1st
Connection.Therefore, in the state of lead 3 to be inserted into through hole 8 and non-soldering, lead 3 is not connected pan portion 6A, i.e. electricity with the 1st
Electronic circuit 11 connects.This is because because connection pan portion 6B of soldering space the 7, the 2nd is not connected the connection of pan portion 6A with the 1st.If logical
Cross soldering lead 3 is connected into pan portion 6B with the 2nd and be connected, then the 2nd connection pan portion 6B is connected pan portion 6A and is connected with the 1st.This is
Because the solder 30 of melting flows to the 1st connection pan portion 6A from the 2nd connection pan portion 6B, thus will be brazed the 1st company that space 7 separates
Connect pan portion 6A and be connected pan portion 6B with the 2nd and be connected.In this condition, lead 3 is connected pan portion via the 2nd connection pan portion 6B with the 1st
6A and be connected with electronic circuit 11.For segmentation terminal pad 6X of the construction, lead 3 is inserted into into the through hole 8 of circuit substrate 2
Can't be connected with electronic circuit 11, but be connected with electronic circuit 11 by soldering.This be configured to by lead 3 be not by
According to the order for being inserted into through hole 8, but the order according to soldering is connected with electronic circuit 11.Therefore, by specifying soldering
Sequentially, lead 3 can be connected in particular order with electronic circuit 11.
The ring-type that the 2nd connection pan portion 6B shown in Fig. 6 is arranged around through hole 8, in the outside of the 2nd connection pan portion 6B
The 1st connection pan portion 6A is provided with, between the 1st connection pan portion 6A and the 2nd connection pan portion 6B soldering space 7 is provided with.Through hole 8 is
Slit-shaped and it is inserted into the shape of guide plate 3A.Although not shown, but insert wire through hole for circle.It is being arranged at slit-shaped
The 1st connection pan portion 6A is provided with the outside of the both ends of the long side direction of the 2nd connection pan portion 6B around through hole 8.It is arranged at
A pair the 1st connection pan portions 6A of both sides are connected with each other by conductive part 5, and are connected with electronic circuit 11 via conductive part 5.It is right
In segmentation terminal pad 6X of Fig. 6, the width at the 2nd both ends for connecting pan portion 6B is reduced, the 1st is arranged on the outside of it and connects pan portion
6A, same wire is configured to by the 2nd connection pan portion 6B with the 1st outer peripheral edge for being connected pan portion 6A.Segmentation terminal pad 6X connects the 2nd
The both sides for connecing pan portion 6B are provided with multiple 1st connection pan portions 6A.Segmentation terminal pad 6X passes through soldering, by multiple 1st terminal pads
Portion 6A is connected pan portion 6B and is connected with the 2nd.Therefore, lead 3 can be connected pan portion 6A and more may be used via the 2nd connection pan portion 6B with the 1st
By and be stably connected with electronic circuit 11.
Further, circuit substrate 2 as depicted in the cross-sectional view of figure 7, pan portion 6B is connected via the logical of insertion insulating substrate 4 by the 2nd
Hole 8 is attached with the conductive part 5 at the back side for being arranged at insulating substrate 4.The construction is by the two ends of through hole 8 and in insulating substrate 4
The conductive part 5 that configured of two sides be connected.That is, the construction of the conductive part 5 for linking two sides by through hole 8 is become.The construction
2nd connection pan portion 6B can will be inserted and be soldered to the lead 3 of through hole 8 and more reliably be fixed on circuit substrate 2.This is because logical
Hole 8 is more firmly fixed at insulating substrate 4.Therefore, the battery pack of the circuit substrate 2 has can further improve vibration resistance
The feature of intensity.
Further, the circuit substrate 2 as shown in the top view of Fig. 6 and the profile of Fig. 8, by the multiple of the 2nd connection pan portion 6B
Point is connected via multiple sub-through holes 9 with the conductive part 5 at the back side for being arranged at insulating substrate 4.Sub-through hole 9 is than inserting lead 3
Through hole 8 is little, and multiple points of the 2nd connection pan portion 6B are connected with conductive part 5.
The battery pack that the circuit of Fig. 4 is constituted, in the electronic circuit 11 of circuit substrate 2 is installed on, is provided with each list of detection
The voltage detecting circuit 19 of the voltage of battery 1, power for operation is supplied from battery module 10 to electronic circuit 11.Therefore, in electronics
The power line 15 of circuit 11, via lead 3 side of the positive electrode and negative side of battery module 10 are connected with.The battery pack that the circuit is constituted
In assembling procedure, lead 3 is connected according to the order of A, B, C, D, E, F in figure with circuit substrate 2, it is thus possible to prevent electricity
The failure of electronic circuit 11, the fusing of fuse 13.Because electronic circuit 11 is changed into after working condition, the voltage of battery is detected, if
Switch element 14 is then switched to connection so as to fuse wire 13 by voltage in abnormality, so by by electronic circuit 11
Side of the positive electrode or negative side be finally connected with circuit substrate 2, the fusing of the fuse 13 being prevented from assembling procedure.This is
Because being changed into the electronic circuit before working condition 11 will not switch to connection by switch element 14.Therefore, for due to lead 3
The order of connection and the battery pack of the fusing of fuse 13, the side of the positive electrode or the lead 3 of negative side for finally connecting electronic circuit 11 can
Prevent the fusing of fuse 13.Accordingly, as the terminal pad 6 that the side of the positive electrode or negative side with electronic circuit 11 is connected, pass through
The terminal pad 6 of the lead 3 of the either or both of A, F only will be connected in Fig. 4, using being divided into the 1st terminal pad as shown in Figure 6
Segmentation terminal pad 6X of the construction that portion 6A is connected pan portion 6B with the 2nd, though by Fig. 4 connect B, C, D, E shown in lead 3 company
Disk 6 is connect using the existing construction shown in Fig. 2, the electrical contact of terminal pad 6 and lead 3 also will not occur, be prevented from fuse
13 fusing, and it is prevented from high-tension applying.Further, since obtaining electronic circuit 11 from the lead 3 of maximum potential side
Power supply, thus by using segmentation terminal pad 6X the lead 3 of maximum potential side is not electrically connected, even if so as to will connection B, C,
The terminal pad 6 of the lead 3 shown in D, E adopts the existing construction shown in the profile of Fig. 3, it is also possible in preventing assembling procedure
The fusing of fuse 13.
For example, it is also possible to only by the terminal pad of the lead 3 in Fig. 4 shown in the F of the maximum potential side of connection battery module 10
6, using segmentation terminal pad 6X for being divided into the construction that the 1st connection pan portion 6A is connected pan portion 6B with the 2nd as shown in Figure 6.Connection electricity
The terminal pad 6 of the terminal pad 6 of the lead 3 shown in the A of the potential minimum side of pond module 10 and the other leads 3 of connection also may be used
Being the construction shown in Fig. 3.
Additionally, in the state of the power line 15 by electronic circuit 11 is connected with battery module 10, by with monocell 1
The lead 3 that tie point 16 is connected is connected according to the order of B, C, D, E in Fig. 4 with electronic circuit 11, and electronic circuit 11 is not yet
The abnormal voltage of monocell 1 can be detected, electronic circuit 11 will not also be occurred and detected the abnormal voltage of battery and by switch element
14 switch to connection so as to the situation of fuse wire 13.Therefore, the terminal pad 6 of B, C, D, E only will be connected in Fig. 4 using segmentation
Segmentation terminal pad 6X of the construction for being connected pan portion 6B with the 2nd for the 1st connection pan portion 6A, by the terminal pad 6 of connection A, F Fig. 3 is adopted
Shown existing construction, it is also possible to prevent the fusing of the fuse 13 in assembling procedure.
Therefore, battery pack of the invention is without the need for certain all of terminal pad that will be attached to lead 3 and circuit substrate 2
6, using segmentation terminal pad 6X for being separated into the construction that the 1st connection pan portion 6A is connected pan portion 6B with the 2nd.Simplest circuit substrate
2 is as follows：The terminal pad 6 that only power line 15 with the side of the positive electrode of electronic circuit 11 is connected, using being divided into the 1st pan portion is connected
Segmentation terminal pad 6X of the construction that 6A is connected pan portion 6B with the 2nd, other terminal pads 6 are using the existing construction shown in Fig. 3.
Industrial applicibility
Battery pack involved in the present invention be suitable as electric bicycle, small electric motorcycle with power supply come sharp
With.
Symbol description
1 monocell
2 circuit substrates
3 leads
3A guide plates
4 insulating substrates
5 conductive parts
6 terminal pads
6X splits terminal pad
6A the 1st connects pan portion
6B the 2nd connects pan 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 leads
110 battery modules
111 electronic circuits
113 fuses
114 switch elements
115 power lines
202 circuit substrates
203 leads
204 insulating substrates
205 conductive parts
206 terminal pads
218 through holes
302 circuit substrates
303 leads
304 insulating substrates
306 terminal pads
308 through holes
318 connecting holes
R adding thermal resistances
Claims (8)
1. a kind of battery pack, possesses：
The multiple monocells (1) being connected in series with each other；With
Circuit substrate (2), it is via the lead (3) being made up of guide plate (3A) or wire and the electrode terminal phase of the monocell (1)
Connection,
The circuit substrate (2), on the surface of insulating substrate (4) conductive part (5) is provided with, and in conductive part (5) electronics is provided with
Circuit (11), and, circuit substrate (2) will be connected with the electronic circuit (11) and via the lead (3) with it is described
The i.e. multiple terminal pads (6) of the conductive part (5) that monocell (1) is connected are arranged at the surface of insulating substrate (4),
By at least one of the plurality of terminal pad (6) be set to split terminal pad (6X), the segmentation terminal pad (6X) by with it is described
Electronic circuit (11) be connected the 1st connection pan portion (6A) and by soldering connecting lead wire (3) the 2nd connection pan portion (6B) structure
Into,
Segmentation terminal pad (6X), pan portion (6B) is connected with notconnect state by the described 1st connection pan portion (6A) with the described 2nd
The surface of insulating substrate (4) is configured at, also, is connected with the 2nd between pan portion (6B) in the 1st connection pan portion (6A), be provided with logical
The solder (30) of crossing solder tails (3) and the soldering space (7) that is connected with each other,
Also, the circuit substrate (2) is connected and inserts leading to for the lead (3) with pan portion (6B) is connected with the described 2nd
Hole (8), the lead (3) for being inserted into the through hole (8) is connected pan portion (6B) and is connected by soldering with the 2nd, also, by by institute
The solder (30) that lead (3) is soldered to the 2nd connection pan portion (6B) is stated, will be positioned at the 1st connection of the both sides of soldering space (7)
Pan portion (6A) is connected pan portion (6B) and is connected with the described 2nd, and the lead (3) is via the 1st connection pan portion (6A) and the 2nd terminal pad
Portion (6B) is connected with the electronic circuit (11) of the circuit substrate (2),
Battery module (10) is made up of the plurality of monocell (1) being connected in series with each other, and only will connection and the battery
The terminal pad (6) of the lead (3) that the outlet side of the maximum potential of module (10) is connected is set to segmentation terminal pad (6X).
2. battery pack according to claim 1, wherein,
Battery module (10) is made up of the plurality of monocell (1) being connected in series with each other, and will connection and the plurality of list
The terminal pad (6) of the lead (3) that the tie point (16) of battery (1) is connected is set to segmentation terminal pad (6X).
3. battery pack according to claim 1 and 2, wherein,
The soldering space (7) is slit-shaped, and the inner width of slit is in more than 0.01mm, below 0.5mm.
4. battery pack according to claim 1 and 2, wherein,
2nd connection pan portion (6B) is the ring-type arranged around the through hole (8), in the outer of the 2nd connection pan portion (6B)
Side is provided with the 1st connection pan portion (6A), is connected with the 2nd between pan portion (6B) in the 1st connection pan portion (6A) and is provided with soldering space
(7)。
5. battery pack according to claim 1 and 2, wherein,
It is described 2nd connection pan portion (6B) via insertion insulating substrate (4) through hole (8) be arranged at the insulating substrate (4)
The conductive part (5) at the back side is connected.
6. battery pack according to claim 1 and 2, wherein,
2nd connection pan portion (6B) via multiple sub-through holes (9) and the back side for being arranged at the insulating substrate (4) conductive part
(5) it is connected.
7. battery pack according to claim 1 and 2, wherein,
The electronic circuit (11) for being installed on the circuit substrate (2) possesses voltage detecting circuit (19), the voltage detecting circuit
(19) voltage of each monocell (1) is detected.
8. battery pack according to claim 1 and 2, wherein,
The electronic circuit (11) for being installed on the circuit substrate (2) possesses the voltage detecting electricity of the voltage for detecting each monocell (1)
Road (19), it is any one with negative side with the side of the positive electrode of the power line (15) to voltage detecting circuit (19) the supply power for operation
The terminal pad (6) that side or both sides are connected is segmentation terminal pad (6X),
The power line (15) via the described 1st connection pan portion (6A), it is described 2nd connection pan portion (6B) and the lead (3) and
Monocell (1) is connected.
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 CN103904380A (en) | 2014-07-02 |
| CN103904380B true 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) |
Families Citing this family (9)
| 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 |
| 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 |
| US10347896B2 (en) * | 2016-06-14 | 2019-07-09 | Ford Global Technologies, Llc | Electrical interconnects for battery cells |
| US10530019B2 (en) | 2016-11-02 | 2020-01-07 | GM Global Technology Operations LLC | Battery module with resistance-welded senseline tabs and method of manufacturing the same |
| 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 |
| KR20220020106A (en) * | 2020-08-11 | 2022-02-18 | 주식회사 엘지에너지솔루션 | Battery apparatus and method of manufacturing the same |
| 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 |
Family Cites Families (7)
| 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 |
| JP2004327645A (en) * | 2003-04-24 | 2004-11-18 | Fuji Electric Device Technology 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 |
| JP4946742B2 (en) * | 2007-09-05 | 2012-06-06 | ソニー株式会社 | Board, circuit board and battery pack |
| 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
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103904380A (en) | 2014-07-02 |
| JP2014127418A (en) | 2014-07-07 |
| JP6022348B2 (en) | 2016-11-09 |
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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. |
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