Invention content
The invention reside in provide the printing board PCB pallet and battery that a kind of manufacturing cost is low, reliability consistency is highModule.
According to an aspect of the present invention, a kind of printing board PCB pallet provided, the printing board PCB palletIncluding pcb board, the pcb board is equipped at least one voltage acquisition channel, at least one temperature acquisition channel, signal acquisition companyConnect device；At least one bus bar unit, each bus bar unit include multiple electrical connection busbars, and each bus bar unit also wrapsIt includes at least one output busbar and is connected to the signal acquisition connector via corresponding voltage acquisition channel, at least partly convergeIt further includes temperature detector to flow a unit, and the temperature detector is connected to the signal via corresponding temperature acquisition channel and adoptsCollect connector；And insulating film, for the pcb board and at least one bus bar unit to be bonded together into oneFormula structure.
Preferably, the insulating film includes two layers of insulating film, and the pcb board is bonded in the multiple bus bar unitBetween two layers of insulating film.
Preferably, the insulating film is made of PET material.
Preferably, at least one voltage acquisition channel is equipped with fuse.
Preferably, the bus bar unit is electrically connected with voltage acquisition channel by nickel sheet.
Preferably, each electrical connection busbar is equipped with hole.
Preferably, at least one outside the insulating film in the multiple hole, the fuse, the temperature detectorDew.
Preferably, at least two of printing board PCB tray edge portion is located in the multiple bus bar unitBusbar is as power busbar.
Preferably, nickel plating on the power busbar.
According to another aspect of the present invention, a kind of battery modules, including module upper cover are provided, battery core module and above-mentionedPrinting board PCB pallet, between the module upper cover and the battery core module.
The printing board PCB pallet of the present invention includes pcb board and bus bar unit, and acquisition harness is integrated on pcb board, is convergedIt includes multiple busbars to flow on a unit, improves production efficiency, reduces production cost, ensure that product reliability.And pcb boardIt is adhesively fixed by PET film with the connector of bus bar unit, keeps product formation integrated, each element size is effectively controlledSystem, improves homogeneity of product.Voltage acquisition circuit is equipped with fuse when short circuit or exception occurs in voltage acquisition circuit, meltsDisconnected device meeting fuse protection bulk loop, improves the safety of product.Confluence strip connector and the bus bar unit of pcb board pass throughNickel sheet carries out laser welding, improves overall construction intensity.Nickel plating had both avoided aluminium and copper that electrochemistry occurs anti-on output busbarIt answers, effectively reduces purchase cost.
Specific implementation mode
The present invention is more fully described hereinafter with reference to embodiment attached drawing.In various figures, identical element uses phaseWith or similar reference numeral indicate.
It should be appreciated that when describing the structure of component, it is known as positioned at another floor, another area when by a floor, a regionWhen domain " above " or " top ", can refer to above another layer, another region, or its with another layer, it is anotherAlso include other layers or region between a region.Also, if by part turnover, this layer, a region will be located at it is anotherLayer, another region " following " or " lower section ".
Fig. 1 shows the schematic diagram that the battery modules stereochemical structure of the embodiment of the present invention is decomposed.
As shown in Figure 1, battery modules 500 include printing board PCB pallet 100, battery core module 200 and module upper cover300.Battery core module 200 includes by the fixed multiple battery cores of module casing, multiple battery cores such as array arrangement, printed circuit boardPCB pallets 100 are located at the top of battery core module 200, and module upper cover 300 is located at the top of printing board PCB pallet 100.
Fig. 2 shows the perspective views of the printing board PCB pallet of the embodiment of the present invention.
As shown in Fig. 2, printing board PCB pallet 100 includes pcb board 10, multiple bus bar units 20 and PET film30。
The busbar of at least one bus bar unit 20 is in varying numbers, includes multiple busbars on bus bar unit 20.OftenInclude multiple electrical connection busbars 25 on a bus bar unit, each busbar is equipped with hole 21, the electrode for connecting battery coreConnection in series-parallel between terminal and then realization battery core.Section of bus unit 20 is equipped with temperature detector 23.Each bus bar unitOn further include at least one output busbar 24.At least two busbars positioned at printing board PCB pallet frontside edge portion are madeInclude two holes for power busbar 40, on power busbar 40, it is external for powering for connecting, it is plated on power busbar 40Nickel prevents that electrochemical reaction occurs with the copper bar of external connection, while reducing in cost.For example there are 5 confluences in the present embodimentUnit.
Pcb board 10 includes a plurality of voltage acquisition channel 11 being mutually parallel and temperature acquisition channel 13 and signal acquisitionConnector 14.
Signal acquisition connector 14 connects voltage acquisition channel 11 and 13 signal acquisition connector 14 of temperature acquisition channel is anotherOne end connects result of the external device (ED) (not shown) for output temperature acquisition and voltage acquisition.
Voltage acquisition channel 11 is electrically connected an output busbar 24 of bus bar unit 20, for acquiring battery modulesThe voltage of battery core in 500 monitors the state of battery modules battery core in real time.An output is included at least in each bus bar unit 20Busbar connects voltage acquisition channel 11, and each busbar 24 that exports is electrically connected voltage acquisition channel 11, to ensure voltageThe integrality of acquisition.It is additionally provided with fuse 12 on voltage acquisition channel 11, when short circuit or exception occurs in voltage acquisition circuit, meltsThe disconnected meeting of device 12 fuse protection bulk loop, improves the safety of battery modules and electric vehicle.
The electrical connection of temperature acquisition channel 13 temperature detector 23, the temperature for acquiring different parts in battery modules 500,The state of monitoring battery modules battery core in real time.Bus bar unit equipped with temperature detector 23 is located remotely from each other, to ensure that temperature is adoptedThe integrality of collection.For example including two temperature detectors 23 in the present embodiment.
The connector that pcb board 10 is formed at least one bus bar unit 20 is bonded together into one by insulating film 30Body formula structure.Pcb board 10 and multiple bus bar units 20 are bonded between two layers of insulating film 30 by two layers of insulating film 30.Insulating filmIt is made of PET material.Bus bar unit 20 and pcb board 10 are bonded by printing board PCB pallet using frock clamp and PET filmIt is fixed, keep product formation integrated, while the positioning and design of bus bar unit 20 reduce the quantity of busbar, each partsSize is effectively controlled, and improves homogeneity of product.Wherein, hole 21, fuse 12 and the warming of busbar 25 are electrically connectedDetector 23 is exposed from insulating film 30.
The surface in the hole 21 on fuse 12, temperature detector 23 and bus bar unit does not paste PET film 30.
Fig. 3 shows to omit the partial enlarged view of insulating film in Fig. 1 at the A of region.Region A shows output busbar in Fig. 124 with the joint detail in voltage acquisition channel 11.
As shown in figure 3, signal acquisition connector 14, which connects voltage acquisition channel 11, passes through nickel sheet 22 and output busbar 24Laser welding improves the overall construction intensity of printing board PCB pallet.And voltage acquisition harness is integrated in pcb board 10On, it improves production efficiency, reduce production cost, ensure that product reliability.
Fig. 4 shows to omit the partial enlarged view of insulating film in Fig. 1 at the B of region.Region B shows that temperature acquisition is logical in Fig. 1The joint detail in road 13 and temperature detector 23.
It is for example connected respectively by conducting wire as shown in figure 4, signal acquisition connector 14 connects two temperature acquisition channels 13The ends T21 and the ends T22 of temperature detector 23 on bus bar unit 20.And temperature acquisition harness is integrated in pcb board 10On, it improves production efficiency, reduce production cost, ensure that product reliability.
The present invention proposes a kind of printing board PCB pallet and includes the battery modules of printing board PCB pallet, oneChanging printing board PCB tray design has the components such as pcb board, bus bar unit, fuse, warming acquisition, PET film, pcb boardIt is integrated with acquisition harness, fuse, bus bar unit integrates multiple busbars and temperature detector, and busbar realizes battery core stringElectric energy is transmitted in parallel connection, and fuse protects bulk loop, temperature detector to monitor the temperature on busbar in real time, and insulating film is fixedBus bar unit and pcb board, and insulating protection is carried out to surface.
It should be noted that only more clearly description is of the invention for the embodiment of the present invention, of the invention is practiced without limitation to this.
It should be noted that herein, relational terms such as first and second and the like are used merely to a realityBody or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operationIn any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended toNon-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including thoseElement, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipmentIntrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded thatThere is also other identical elements in process, method, article or equipment including the element.
As described above according to the embodiment of the present invention, there is no all details of detailed descriptionthe for these embodiments, also notLimit the specific embodiment that the invention is only described.Obviously, as described above, can make many modifications and variations.This explanationThese embodiments are chosen and specifically described to book, is in order to preferably explain the principle of the present invention and practical application, belonging to makingTechnical field technical staff can utilize modification of the invention and on the basis of the present invention to use well.The present invention is only by rightThe limitation of claim and its full scope and equivalent.