A kind of battery pack busbar and battery pack
Technical field
This application involves new energy resource power battery packet technology field more particularly to a kind of busbar in battery pack and with
And using battery pack made of the busbar.
Background technique
Under energy crisis and the pressure of problem of environmental pollution, safe and environment-friendly, the energy saving master for having become current development of automobile
Topic, electric automobile is because of the free of contamination advantage of its energy-saving and environmental protection, by traffic, the great attention of energy sector.Recent years,
New-energy automobile industry has welcome explosive growth.Power core of the battery as electric vehicle is that entire electric car is very heavy
The part wanted.The battery system of one electric car often by hundreds and thousands of a single batteries by series and parallel forming, battery it
Between connection scheme safety of the reliability concerning vehicle.
With the Normalization of industry, the design of battery pack develops towards standardization direction, battery pack components also court
It is designed to integrated form direction.But it currently, is generally connected using exposed copper, aluminium between battery pack battery core in new-energy automobile
Capable concatenation is discharged into, route collecting part is generally acquired using harness;It is carried out between general route collecting part and connection row
Fission connection leads to erroneous for installation, online manufacturing procedure complexity;And structural instability, under battery pack Vibration Condition, zero
Part is easy to loosen to which there are security performance risks.It is therefore desirable to provide a kind of battery pack busbar to overcome disadvantages described above.
Chinese patent CN206075846U discloses a kind of composite bus bar, which includes high-pressure and overflowing plate, low pressure
Circuit board and the insulation board being set between high-pressure and overflowing plate and low-voltage circuit plate, the high-pressure and overflowing plate is by copper sheet and is set to
Insulating layer on copper sheet is pressed by high temperature and pressure.Specifically, the high-pressure and overflowing plate, low-voltage circuit plate and insulation board pass through height
Warm high pressure presses to form composite bus bar.The patent is applied in battery Main Control Tank, rather than in battery pack;The patent simultaneously
Height laminate section be it is separated, only with insulation board it is separated;And the patent does not disclose high-pressure section and low voltage section
The specific structure divided.
Utility model content
The shortcomings that technical problem to be solved in the utility model is, overcomes the above prior art: a kind of battery pack is provided
Busbar, preparation method and battery pack.
The technical solution of the first aspect of the utility model is as follows:
A kind of battery pack busbar, it includes lower insulating film, epoxy resin board, connection row, hot-setting adhesive, FPC from bottom to up
Component and upper nonconductive Film;Through slot is offered on the epoxy resin board, the connection row is arranged in the through slot;The FPC
Component is bonded on the epoxy resin board by the hot-setting adhesive;The FPC component includes the copper foil of electrical connection, nickel sheet, PTC
Thermistor and connector, one end of the nickel sheet are electrically connected with the copper foil, and the other end is electrically connected with connection row;It is described
PTC thermistor and connector are each provided on the copper foil and with the copper foil and are electrically connected;The FPC component further includes packet
Overlay on the insulating film of copper foil outer surface;Film through-hole, the upper film through-hole and the connector are offered on the upper nonconductive Film
Position is corresponding;The lower insulating film offers lower film through-hole, and the lower film through-hole is set corresponding with connection ranking.
As optimal technical scheme, the connection row is several, is spaced the through slot being entrenched on the epoxy resin board
It is interior.
As optimal technical scheme, the connection row is equipped with connection row's counterbore and through-hole;The connection row counterbore setting
In the lower surface of connection row, the through-hole is located among connection row's counterbore.
As optimal technical scheme, the connection row counterbore is symmetricly set on the both ends of the connection row, the through-hole position
Counterbore middle is arranged in connection.
As optimal technical scheme, the PTC thermistor is 6~12, is evenly distributed on the copper foil.
As optimal technical scheme, the PTC thermistor is 9, is evenly distributed on the copper foil.
As optimal technical scheme, the nickel sheet is welded or riveted on the copper foil, the PTC thermistor and is patched
Part is welded on the copper foil.
The technical solution of the second aspect of the utility model is as follows:
A kind of battery pack, including any of the above-described battery pack busbar.
As optimal technical scheme, which further includes battery modules, the battery modules and the battery pack busbar
It is coupled.
As optimal technical scheme, the lower surface of the connection row in the battery pack busbar is also provided with connection row's counterbore;
The battery modules include battery core, and one end of the battery core is equipped with battery core pole;Counterbore is arranged in the battery core pole and the connection
It is cooperatively connected.
The beneficial effects of the utility model are:
1, the battery pack busbar of the utility model becomes one the high pressure sequential circuit and signal acquisition circuit of battery;
By the way that the row of connection is entrenched in epoxy resin board, several connections row is separated and plays the role of insulation, by welding nickel sheet
It is connected on connection row, realizes and be electrically connected connection row with FPC component;And connection row's laser welding or screw are fixed on battery
In mould group, play the role of acquiring each battery core voltage of battery modules;PTC thermistor is welded on copper foil simultaneously and plays acquisition electricity
The effect of core temperature;And connector connects the collected voltage of external control circuit transmitting, temperature is believed by welding on copper foil
Breath;To not only reduce online manufacturing procedure, is conducive to produce in batches, greatly improves production efficiency;And improve busbar
Usage safety performance.
2, battery high pressure sequential circuit and signal acquisition circuit are integrally formed by the utility model using hot extrusion briquetting technique,
Not only increase insulation performance;And be conducive to produce in batches, improve homogeneity of product.And it is heavy that the row of connection is equipped with connection row
The busbar need to can be only fixed in battery core battery modules by hole by laser welding or screw, and stable structure is easy for installation,
With excellent electric conductivity and higher electrical safety performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of battery pack busbar provided by the embodiment of the present application 1;
Fig. 2 is the configuration schematic diagram of Fig. 1;
Fig. 3 is the assembling structure schematic diagram of FPC component and the row of connection in the embodiment of the present application 1;
Fig. 4 is the assembling structure schematic diagram of battery pack busbar and battery modules provided by the embodiment of the present application 2;
Fig. 5 is the assembling structure schematic diagram of connection row and battery core in embodiment 2.
It is as shown in the figure: 100, standard container busbar;101, upper nonconductive Film;1011, upper film through-hole;1012, first through hole;
1013, the second through-hole;1014, third through-hole;102, FPC component;1021, copper foil;1022, nickel sheet;1023, PTC temperature-sensitive electricity
Resistance;1024, connector;103, hot-setting adhesive;104, connection row;1041, connection row counterbore;1042, arch convex ribs;1043, through-hole;
105, epoxy resin board;1051, through slot;106, lower insulating film;1061, lower film through-hole;200, battery modules;201, battery core;
2011, battery core pole.
Specific embodiment
The utility model is described in further details with specific embodiment below, but the utility model be not only limited to
Lower specific embodiment.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
Embodiment 1
As shown in Figures 1 to 3, a kind of battery pack busbar, it includes lower insulating film 106, epoxy resin board from bottom to up
105, connection row 104, hot-setting adhesive 103, FPC component 102 and upper nonconductive Film 101;
Lower film through-hole 1061, the lower film through-hole 1061 and connection row 104 are offered on the lower insulating film 106
Position is corresponding.For contacting connection row with the battery core in battery modules, welding is integrally able to achieve and leads after Laser Welding
Electro ultrafiltration.
The epoxy resin board 105 is arranged on lower insulating film 106, and offers on epoxy resin board 105 logical
Slot 1051, in the present embodiment, the through slot 1051 are several, and the through slot 1051 is arranged at intervals on epoxy resin board 105.
The connection row 104 is entrenched in the through slot 1051 of the epoxy resin board 105, if connection row 104 is
It dry, is entrenched in above-mentioned through slot 1051 respectively, the connection row 104 is conductive material.In the present embodiment, the connection row
104 be symmetrical laminated structure, and there are an arch convex ribs 1042 at the intermediate position of laminated structure, and connection row 104 is with the arch
Convex ribs 1042 are symmetrical axial symmetry, which plays vibration buffer function.
The hot-setting adhesive 103 is bonded on the epoxy resin board 105, thus the shape of the hot-setting adhesive 103 and
Structure is identical as the epoxy resin board 105.
The FPC component 102 includes copper foil 1021, nickel sheet 1022, PTC thermistor 1023 and the connector of electrical connection
1024;One end of the nickel sheet 1022 is electrically connected with the copper foil 1021, and the other end is electrically connected with connection row 104;It is described
PTC thermistor 1023 is located on copper foil 1021 and is electrically connected with copper foil 1021;The connector 1024 is located on copper foil 1021
And it is electrically connected with copper foil 1021;The FPC component 102 further includes the insulating film for being coated on 1021 outer surface of copper foil.Pass through the nickel
Piece 1022 connects the copper foil and connection row 104, to realize the voltage for the battery pack that acquisition and the row of connection 104 connect.
The temperature of battery pack is acquired by PTC thermistor.Collected electricity is transmitted by connector 1024 and external control circuit
Pressure, temperature information.In the present embodiment, the nickel sheet 1022 welds or rivets on the copper foil 1021, the PTC temperature-sensitive electricity
Resistance 1023 and connector 1024 are welded on the copper foil 1021.The PTC thermistor 1023 is 6~12, is uniformly distributed
It on the copper foil 1021, is uniformly distributed, so that temperature measurement is accurate.More preferably 9.The FPC component 102 is to pass through heat
Solid glue 103 is bonded on the epoxy resin board 105.
Film through-hole 1011, the upper film through-hole 1011 and the connector 1024 are offered on the upper nonconductive Film 101
Position is corresponding;For passing through the connector 1024, to be connect with external control circuit.Further, described exhausted
1012 He of first through hole passed through for the PTC thermistor 1023 and the arch convex ribs 1042 is also provided on velum 101
Second through-hole 1013;It is also provided with third through-hole 1014 corresponding with 1043 position of through-hole on connection row 104 simultaneously, consequently facilitating
Connection row 104 is welded in battery modules.Nickel sheet 1022 and PTC thermistor 1023 on 101 surface silk-screen of upper nonconductive Film
It adopts pressure point and adopts warm spot location information.
Embodiment 2
As shown in figure 5, the present embodiment is to be further optimized on the basis of embodiment 1, the specifically described connection row
104 are equipped with connection row's counterbore 1041 and through-hole 1043, and the lower surface of connection row 104 is arranged in the connection row counterbore 1041,
It and is the both ends for being symmetricly set on the arch convex ribs 1042;The through-hole 1043 is located among connection row's counterbore 1041.By setting
It sets connection row's counterbore 1041 to be coupled convenient for the battery pack busbar with battery modules 200, connect more stable and secured;Pass through
Setting through-hole 1043 is convenient for for connection row 104 being welded in battery modules 200.
Embodiment 3
As shown in Figures 4 and 5, a kind of battery pack, the battery pack include above-mentioned battery pack busbar and female with above-mentioned battery pack
Arrange the battery modules 200 being coupled;Further include BMS, connector, heating system, cooling system etc., wherein BMS, connector,
The structure and connection type of heating system, cooling system etc. are the prior art, are not described in detail in the present invention.
The battery modules 200 include battery core 201, and one end of the battery core 201 is equipped with battery core pole 2011;The battery core
Pole 2011 and the connection row's counterbore 1041 are cooperatively connected, to realize matching for battery pack busbar and battery modules 200
Close installation.
When using battery pack, by 104 connection high-pressure section, that is, battery modules 200 of connection row, and pass through nickel sheet 1022
Connection row 104 is electrically connected with by FPC component 102, to acquire the voltage of battery pack by FPC component;Pass through simultaneously
PTC thermistor 1023 on FPC component 102 can acquire the temperature in battery pack, and pass through patching on FPC component 102
Part 1024 is attached with external software, so as to acquire and feed back the pressure and temperature in battery pack.
The above is only the feature implementation examples of the utility model, are not limited in any way to scope of protection of the utility model.
All technical solutions formed using same exchange or equivalence replacement, are all fallen within the utility model rights protection scope.