CN208198145U - The BDU and power battery pack and electric vehicle of power battery pack - Google Patents
The BDU and power battery pack and electric vehicle of power battery pack Download PDFInfo
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- CN208198145U CN208198145U CN201820597205.6U CN201820597205U CN208198145U CN 208198145 U CN208198145 U CN 208198145U CN 201820597205 U CN201820597205 U CN 201820597205U CN 208198145 U CN208198145 U CN 208198145U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model discloses the BDU of power battery pack and power battery pack and electric vehicles; the BDU includes shell and is arranged in the intracorporal protection device of shell and BMS module; BMS module is mounted in shell, for being controlled according to the electricity of battery modules protection device.By the way that BMS module to be integrated in BDU, is installed relative to dispersion, easily facilitate management, integration is higher.
Description
Technical field
The utility model belongs to technical field of vehicle more particularly to a kind of BDU of power battery pack, and including the BDU
Power battery pack and electric vehicle including the power battery pack.
Background technique
Power battery pack is the power source of electric vehicle, in the related art, the BDU (Battery of power battery pack
Disconnect Unit, battery cutout unit) integrated level it is not high, remain to be further improved.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.
For this purpose, first purpose of the utility model is to propose that a kind of BDU of power battery pack, the BDU include vehicle
BMS, it is compact-sized, integrated level improve.
Second purpose of the utility model is to propose a kind of power battery pack including the BDU.
The third purpose of the utility model is to propose a kind of electric vehicle including the power battery pack.
In order to achieve the above object, the BDU for the power battery pack that the utility model first aspect embodiment proposes includes: shell
Body and setting are in the intracorporal protection device of the shell；BMS module, the BMS module are mounted in the shell, for according to electricity
The electricity of Chi Mo group controls the protection device.
According to the BDU of the power battery pack of the utility model embodiment, by the way that BMS module to be integrated in shell, BMS mould
Block directly controls protection device, and compared to BDU and BMS dispersed placement, structure is more compact, integrated raising.
In some embodiments, the BDU further include: at least one high-voltage connector on the housing, institute are set
At least one high-voltage connector is stated for connecting high tension apparatus；At least one low pressure connector on the housing, institute are set
At least one low pressure connector is stated for connecting low-voltage device.High-voltage connector and low pressure connector are integrated in BDU, into one
Step improves integration.
In some embodiments, at least one described high-voltage connector includes the first high-voltage connector, first high pressure
Connector is used to connect the high pressure guiding circuit of battery modules；At least one described low pressure connector includes that the first low pressure patches
Part, the first low pressure connector are used to connect the low voltage communication circuit of the battery modules.
In some embodiments, first high-voltage connector is floating terminals, and the first low pressure connector is to float
Terminal.Using floating terminals, installation is easily facilitated, is conducive to realize Automated assembly.
In some embodiments, at least one described high-voltage connector further includes the first high voltage interface, first high pressure
Interface is used to connect the high pressure guiding circuit of charger unit；At least one described low pressure connector further includes that the second low pressure patches
Part, the second low pressure connector are used to connect the low voltage communication circuit of the charger unit.
In some embodiments, the protection device includes: main positive contactor, and the first end of the positive contactor of master passes through
First high-voltage connector is connected with the positive terminal of the battery modules, and the second end of the positive contactor of master passes through described the
One high voltage interface is connected with one end of the charger unit, and the control terminal of the positive contactor of master is connected with the BMS module,
To form main positive circuit；Main negative contactor, the first end of the negative contactor of master by first high-voltage connector with it is described
The negative pole end of battery modules is connected, and the second end of the negative contactor of master passes through first high voltage interface and the charger list
The other end of member is connected, and the control terminal of the negative contactor of master is connected with the BMS module, to form main negative circuit.
In some embodiments, at least one described high-voltage connector further includes third high-voltage connector, and the third is high
The first end of crimping plug-in unit is connected on the positive circuit of the master, and it is negative that the second end of the third high-voltage connector is connected to the master
On circuit, the output end of the third high-voltage connector is adapted to the first motor of vehicle.
In some embodiments, at least one described high-voltage connector further includes the 4th high-voltage connector, and the described 4th is high
The first end of crimping plug-in unit is connected on the positive circuit of the master, and it is negative that the second end of the 4th high-voltage connector is connected to the master
On circuit, the output end of the 4th high-voltage connector is adapted to the second motor of the vehicle, is suitable for four-wheel driven electric vehicle
?.
In some embodiments, at least one described high-voltage connector further includes the 5th high-voltage connector, and the described 5th is high
The first end of crimping plug-in unit is connected on the positive circuit of the master, and it is negative that the second end of the 5th high-voltage connector is connected to the master
On circuit, the output end of the 5th high-voltage connector is adapted to DCDC conversion module；At least one described low pressure connector
It further include third low pressure connector, one end of the third low pressure connector is suitable for the low voltage communication with the DCDC conversion module
Circuit is connected, and the other end of the third low pressure connector is suitable for being connected with the BMS module.
In some embodiments, at least one described low pressure connector includes the 4th low pressure connector, the 4th low pressure
One end of connector is connected with the BMS module, and the other end of the 4th low pressure connector is adapted to vehicle telecommunication circuit.
In some embodiments, the protection device includes preliminary filling resistance and preliminary filling contactor, the preliminary filling resistance and institute
State preliminary filling contactor series connection after it is in parallel with the positive circuit of the master to form preliminary filling circuit, the preliminary filling circuit is on the pcb board of BDU
Cabling.
In some embodiments, the protection device includes heating relay and heating fuse, the heating relay
Heating circuit, pcb board upward wiring of the heating circuit in the BDU are formed with the heating fuse.
Preliminary filling circuit and heating circuit are in pcb board upward wiring, it is possible to reduce connection wiring harness, convenient for improving integration.
Based on the BDU of above-mentioned aspect embodiment, the power battery pack of the utility model second aspect embodiment, comprising: packet
Body；Battery modules, the battery modules include multiple single batteries；The BDU；The battery modules and the BDU are all provided with
It is placed in the backpack body.
According to the power battery pack of the utility model embodiment, by using the BDU of above-mentioned aspect embodiment, by BMS mould
Block is integrated in BDU, and compared to scattering device, structure is more compact, and integration improves.
In some embodiments, the BMS module of the BDU includes main control unit and multiple sub-control units, the master
Control unit is set in the shell of the BDU, and the multiple sub-control unit is arranged in the battery modules, for monitoring
The electricity of the multiple single battery.
In some embodiments, the power battery pack further include: charger unit, the charger unit are arranged in institute
It states in backpack body；High-voltage alternating connector, the high-voltage alternating connector are arranged on the backpack body, the high-voltage alternating connector
Input terminal be connected with the charger unit, the output end of the high-voltage alternating connector is adapted to the power battery pack
Outer high-voltage alternating device.Integrated bi-directional charger unit in power battery pack improves battery packet function, is conducive to power battery pack
Echelon utilize.
In some embodiments, the power battery pack further include: DCDC conversion module, the DCDC conversion module setting
In the backpack body, for the output voltage of battery modules to be converted to low pressure；Low pressure output connector, the low pressure output connect
Plug-in unit is arranged on the backpack body, and the input terminal of the low pressure output connector is connected with DCDC conversion module, and the low pressure is defeated
The output end of connector is suitable for being connected with the low-voltage electrical appliance part outside power battery pack out.Low tension is provided in power battery pack
Source increases its function.
Based on the power battery pack of above-mentioned aspect embodiment, the electric vehicle of the utility model third aspect embodiment, packet
Include the power battery pack.
BDU and BMS is integrated and is set by using the power battery pack according to the electric vehicle of the utility model embodiment
Meter, structure is more compact, has higher integration, facilitates the management of electrical system.
Detailed description of the invention
Fig. 1 is the block diagram according to the BDU of the power battery pack of the utility model embodiment；
Fig. 2 is the block diagram of the BDU of the power battery pack of one embodiment according to the present utility model；
Fig. 3 is the electrical schematic diagram of the BDU of the power battery pack of one embodiment according to the present utility model；
Fig. 4 is the stereoscopic schematic diagram of the BDU of the power battery pack of one embodiment according to the present utility model；
Fig. 5 is the top view for the BDU of the power battery pack of Fig. 4；
Fig. 6 is the bottom view for the BDU of the power battery pack of Fig. 4；
Fig. 7 is the block diagram according to the power battery pack of the utility model embodiment；
Fig. 8 is the electrical schematic diagram of the power battery pack of one embodiment according to the present utility model；
Fig. 9 is the block diagram according to the electric vehicle of the utility model embodiment.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
The BDU of power battery pack according to the utility model first aspect embodiment is described with reference to the accompanying drawings.
Fig. 1 is according to the functional block diagram of the BDU of the power battery pack of the utility model embodiment, as shown in Figure 1, this is practical
The BDU 100 of the power battery pack of new embodiment includes shell 10, protection device 20 and BMS (BATTERY MANAGEMENT
SYSTEM, battery management system) module 30.
Wherein, protection device 20 may include such as contactor, relay, fuse, can be power battery pack
High-voltage safety provides protection.Device 20 is protected to be arranged in shell 10.
In the embodiments of the present invention, BMS module 30 is integrated in BDU 100, BMS module 30 is mounted on shell
In 10, for being controlled according to the electricity of battery modules protection device 20.Specifically, BMS module 30 can directly control
The state of protection device in BDU 100, for example, control protection device 20 is connected when battery modules electricity is lower than threshold value, so that
Obtaining charging equipment is that battery modules charge, and when the electricity of battery modules reaches threshold value or charge fault occurs, control is protected
It protects device 20 to disconnect, to complete charging or charge protection.
According to the BDU 100 of the power battery pack of the utility model embodiment, by the way that BMS module 30 is integrated in shell 10
Interior, BMS module 30 directly controls protection device 20, and compared to BDU and BMS dispersed placement, structure is more compact, integrates
Change and improves.
In some embodiments of the utility model, as shown in Fig. 2, the power battery pack of the utility model embodiment
BDU100 further includes at least one high-voltage connector 40 and at least one low pressure connector 50.At least one high-voltage connector 40 is set
Set on the housing 10, for connecting high tension apparatus, for example, connection charger unit, DCDC module or battery modules or its
His high voltage supply or electricity consumption device；At least one low pressure connector 50 is arranged on the housing 10, for connecting low-voltage device, such as
Low voltage communication connector.
According to the BDU 100 of the power battery pack of the utility model embodiment, by common BDU and high-voltage connector, low
Plug-in unit is crimped, BMS module 30 is internally integrated, realizes effective interaction of BDU and BMS, BMS can directly control relay in BDU
The state of device, contactor monitors BDU high pressure conditions and realizes connection and the information mutual communication of integrated form BDU and high tension apparatus.
Specifically, it is illustrated in figure 3 the electrical original of the BDU of the power battery pack of one embodiment according to the present utility model
Reason figure, Fig. 4 are the stereoscopic schematic diagrams of the BDU of the power battery pack of one embodiment according to the present utility model, and Fig. 5 is for figure
The top view of the BDU of 4 power battery pack, Fig. 6 are the bottom views for the BDU of the power battery pack of Fig. 4.With reference to the accompanying drawings
BDU 100 of the 3-6 to the utility model embodiment integrated high-voltage connector and low pressure connector further illustrates.
In some embodiments, at least one high-voltage connector 40 includes the first high-voltage connector 41, and the first high pressure patches
Part 41 is used to connect the high pressure guiding circuit of battery modules；At least one low pressure connector 50 includes the first low pressure connector, the
One low pressure connector is used to connect the low voltage communication circuits of battery modules, may be implemented BDU 100 and battery modules connection and
Data interaction.
In embodiment, the first high-voltage connector 41 is floating terminals, and the first low pressure connector is floating terminals.Such as Fig. 6
It is shown, wherein the first high-voltage connector 41 of mark connection battery modules, using the high pressure water conservancy diversion of floating terminals and battery modules
Circuit is connected with low voltage communication circuit, is easily facilitated installation, is conducive to realize Automated assembly.
In some embodiments, as shown in fig. 4 or 5, at least one high-voltage connector 40 further includes the first high voltage interface 42,
First high voltage interface 42 is used to connect the high pressure guiding circuit of charger unit 300；At least one low pressure connector 50 further includes
Second low pressure connector 43, the second low pressure connector 43 are used to connect the low voltage communication circuit of charger unit 300.It may be implemented
The connection of BDU 100 and charger unit 300 control the work of charger unit 300 by BMS, convenient for being battery modules
Charging.
In the embodiments of the present invention, as shown in figure 3, protection device 20 includes main positive contactor 21 and main negative contact
Device 22, wherein the first end of main positive contactor 21 is connected by the first high-voltage connector 41 with the positive terminal of battery modules 200,
The second end of main positive contactor 21 is connected by the first high voltage interface 42 with one end of charger unit 300, main positive contactor 21
Control terminal be connected with BMS module 30, to form main positive circuit.
The first end of main negative contactor 22 is connected by the first high-voltage connector 41 with the negative pole end of battery modules 200, main
The second end of negative contactor 22 is connected by the first high voltage interface 42 with the other end of charger unit 300, main negative contactor 22
Control terminal be connected with BMS module 30, to form main negative circuit.
When the electricity of battery modules 200 is lower than threshold value, the main positive contactor 21 of the control of BMS module 30 and main negative contactor 22
It is respectively closed, charge circuit is connected, and charger unit 300 can charge for battery modules 200, and charging complete then controls
Main positive contactor 21 and main negative contactor 22 disconnect.
In some embodiments of the utility model, as shown in fig. 4 or 5, at least one high-voltage connector 40 further includes
Three high-voltage connectors 44, the first end of third high-voltage connector 44 are connected on main positive circuit, and the of third high-voltage connector 44
Two ends are connected on main negative circuit, and the output end of third high-voltage connector 44 is adapted to the first motor of vehicle.Pass through design
Third high-voltage connector 44 can directly be connect with the Wiring harness terminal outside power battery pack, be suitable for two and driven pure electric vehicle, example
Such as electric vehicle with front motor or rear motor.
As shown in fig. 4 or 5, at least one high-voltage connector 40 further includes the 4th high-voltage connector 45, and the 4th high pressure patches
The first end of part 45 is connected on main positive circuit, and the second end of the 4th high-voltage connector 45 is connected on main negative circuit, and the 4th is high
The output end of crimping plug-in unit 45 is adapted to the second motor of vehicle.It similarly, can be straight by designing the 4th high-voltage connector 45
It connects and is connect with the Wiring harness terminal outside power battery pack, be suitable for 4 wheel driven pure electric vehicle, such as with rear motor or front motor
Electric vehicle.
In some embodiments of the utility model, pass through setting third high-voltage connector 44 and the 4th high-voltage connector
45, i.e. design two-way High voltage output connector, structure is more compact, all pacifies motorized 4 wheel driven pure electric vehicle suitable for front and back
?.
In the embodiments of the present invention, at least one high-voltage connector 40 further includes the 5th high-voltage connector 46, the
The first end of five high-voltage connectors 46 is connected on main positive circuit, and the second end of the 5th high-voltage connector 46 is connected to main negative circuit
On, the output end of the 5th high-voltage connector 46 is adapted to DCDC conversion module；
At least one low pressure connector 50 further includes third low pressure connector 47, and one end of third low pressure connector 47 is suitable for
It is connected with the low voltage communication circuit of DCDC conversion module, the other end of third low pressure connector 47 is suitable for being connected with BMS module 30.
The BDU 100 of the utility model embodiment with the rigid line of DCDC module, charger unit 300 by connecting, by charger unit
300 high pressure is connect with BDU100, and low-voltage signal feeds back to BMS, and DCDC module is powered directly to BDU100 and BMS, inside BDU
Relay, the control line of contactor, voltage monitoring, insulating monitoring are inputed into BMS, realize the power of the utility model embodiment
The Highgrade integration of the BDU100 of battery pack.
In the embodiments of the present invention, at least one low pressure connector 50 further includes the 4th low pressure connector 48, the
One end of four low pressure connectors 48 is connected with BMS module 30, and the other end of the 4th low pressure connector 48 is adapted to vehicle communication
Circuit.
In some embodiments of the utility model, protection device 20 further includes preliminary filling resistance 23 and preliminary filling contactor 24,
Preliminary filling resistance 23 and preliminary filling contactor 24 are in parallel with the positive circuit of master to form preliminary filling circuit, PCB of the preliminary filling circuit in BDU after connecting
(Printed Circuit Board, printed circuit board) upward wiring can be further reduced harness, improve integrated level.
In some embodiments of the utility model, protection device 20 further includes heating relay and heating fuse, is added
Electrothermal relay and heating fuse form heating circuit, and PCB upward wiring of the heating circuit in BDU is mentioned with being further reduced harness
High integration.
As shown in figure 3, the BDU100 of the power battery pack of the utility model embodiment further includes being connected on main negative circuit
Main fuse F1 and charging fuse F2 provide protection when charging abnormal, improve safety when battery modules 200 charge.
It further include current sensor for monitoring charging current, by BMS direct monitoring.
Generally speaking, the BDU100 of the power battery pack of the utility model embodiment, to electric components such as high-voltage connecting
Plug-in unit, low pressure connector, main positive contactor, main negative contactor, preliminary filling contactor, heating relay, heating fuse, electric current pass
Sensor, BMS carry out integrated form integrated design, and integration-in-one BDU, wherein preliminary filling circuit, heating circuit, high pressure sample, are low
Pressure sampling is realized on PCB, reduces harness as far as possible, realizes high integration；High-voltage connector, low pressure connector,
BDU, BMS integrated design facilitate the whole management of electrical system, integration with higher.
The BDU of power battery pack based on the above embodiment is described with reference to the accompanying drawings according to the utility model second party
The power battery pack of face embodiment.
Fig. 7 is according to the block diagram of the power battery pack of the utility model embodiment, as shown in fig. 7, the utility model is implemented
The power battery pack 1000 of example includes BDU 100, battery modules 200 and the backpack body 400 of above example.
Wherein, battery modules 200 include multiple single batteries, and battery modules 200 and BDU 200 are all set in backpack body.
The power battery pack 1000 of the utility model embodiment will by using the BDU 100 of above-mentioned aspect embodiment
BMS module is integrated in BDU 100, and compared to scattering device, structure is more compact, and integration improves.
Fig. 8 is the system principle schematic diagram of the power battery pack of one embodiment according to the present utility model, practical at this
In novel some embodiments, as shown in figure 8, the BMS module of BDU 100 includes main control unit 31 and multiple sub-control units
In 32, such as Fig. 8, BCU module and multiple BMU modules.Specifically, pass through CAN bus real time communication, BMU between BCU and BMU
It is mainly responsible for the acquisition of the system parameters such as each monomer battery voltage, temperature, it is equal between each monomer in power battery pack 1000
Weighing apparatus control etc.；BCU acquires charging and discharging currents, the comprehensive battery data obtained from BMU by current sensor, and dynamic calculates SOC,
Effectively implement battery cell balanced management, reliably carries out battery pack insulating monitoring and power battery security monitoring, send event in real time
Hinder diagnostic message, realizes the reliable and secure management of battery system, meanwhile, fast charge, the trickle charge process of power battery are carried out effective
Control and security monitoring.
In some embodiments of the utility model, power battery pack 1000 further includes that charger unit 300 and high pressure are handed over
Flow connector 301, wherein charger unit 300 is arranged in backpack body 400；High-voltage alternating connector 301 is arranged in backpack body 400
On, the input terminal of high-voltage alternating connector 301 is connected with charger unit 300, and the output end of high-voltage alternating connector 301 is suitable for
Connect the high-voltage alternating device outside power battery pack 1000.Bidirectional charger unit can be controlled by main control unit 31
300 work, power battery pack 1000 are internally integrated bidirectional charger unit 300, improve the function of power battery pack 1000, benefit
It utilizes, tries hard to, after electric vehicle reaches quality guarantee period, power battery pack 1000 can be from vehicle in the echelon of power battery pack 1000
On remove, be used for energy storage project or other similar operating condition.
As shown in figure 8, in some embodiments, power battery pack 1000 further includes that DCDC conversion module 500 and low pressure are defeated
Connector 501 out, DCDC conversion module 500 is arranged in backpack body 400, for being converted to the output voltage of battery modules 200
Low pressure.Low pressure output connector 501 is arranged on backpack body 400, the input terminal and DCDC conversion module of low pressure output connector 501
500 are connected, and the output end of low pressure output connector 501 is suitable for being connected with the low-voltage electrical appliance part outside power battery pack 1000.Tool
Body, the work of DCDC module 500 can be controlled by main control unit 32, and low pressure is set inside power battery pack 1000
Output connector 500 provides low pressure such as 12V power supply, increases its function.
In short, the power battery pack 1000 of the utility model embodiment, by by high-low pressure connector, BDU, BMS
Integrated design, the whole management of more convenient electrical system, integration with higher.
Based on the power battery pack of above-mentioned aspect embodiment, describe referring to attached drawing 9 according to the utility model embodiment
Electric vehicle.
As shown in figure 9, the electric vehicle 10000 of the utility model embodiment includes the power battery of above-mentioned aspect embodiment
Packet 1000, by using the power battery pack 1000, by BDU and BMS Integrated design, structure is more compact, has higher collection
It becomes second nature, facilitates the management of electrical system.
The volume for needing to illustrate is, in the description of this specification, reference term " one embodiment ", " some embodiments ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language is necessarily directed to identical embodiment or example.Moreover, the specific features of description, structure, material
Or feature may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, not conflicting
In the case of, those skilled in the art can by different embodiments or examples described in this specification and different embodiment or
Exemplary feature is combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (17)
1. a kind of BDU of power battery pack, which is characterized in that the power battery pack includes battery modules, and the BDU includes:
Shell and setting are in the intracorporal protection device of the shell；
BMS module, the BMS module are mounted in the shell, for the electricity according to battery modules to the protection device
It is controlled.
2. the BDU of power battery pack as described in claim 1, which is characterized in that the BDU further include:
At least one high-voltage connector on the housing is set, at least one described high-voltage connector is for connecting high-voltage device
Part；
At least one low pressure connector on the housing is set, at least one described low pressure connector is for connecting low-voltage device
Part.
3. the BDU of power battery pack as claimed in claim 2, which is characterized in that
At least one described high-voltage connector includes the first high-voltage connector, and first high-voltage connector is for connecting battery mould
The high pressure guiding circuit of group；
At least one described low pressure connector includes the first low pressure connector, and the first low pressure connector is for connecting the electricity
The low voltage communication circuit of Chi Mo group.
4. the BDU of power battery pack as claimed in claim 3, which is characterized in that first high-voltage connector is floating end
Son, the first low pressure connector are floating terminals.
5. the BDU of power battery pack as claimed in claim 3, which is characterized in that
At least one described high-voltage connector further includes the first high voltage interface, and first high voltage interface is for connecting charger list
The high pressure guiding circuit of member；
At least one described low pressure connector further includes the second low pressure connector, and the second low pressure connector is described for connecting
The low voltage communication circuit of charger unit.
6. the BDU of power battery pack as claimed in claim 5, which is characterized in that the protection device includes:
Main positive contactor, the first end of the positive contactor of master by first high-voltage connector with the battery modules just
It is extreme to be connected, one end phase that the second end of the positive contactor of master passes through first high voltage interface and the charger unit
Even, the control terminal of the positive contactor of master is connected with the BMS module, to form main positive circuit；
Main negative contactor, the first end of the negative contactor of master are born by first high-voltage connector and the battery modules
It is extreme to be connected, the other end phase that the second end of the negative contactor of master passes through first high voltage interface and the charger unit
Even, the control terminal of the negative contactor of master is connected with the BMS module, to form main negative circuit.
7. the BDU of power battery pack as claimed in claim 6, which is characterized in that at least one described high-voltage connector also wraps
Third high-voltage connector is included, the first end of the third high-voltage connector is connected on the positive circuit of the master, the third high pressure
The second end of connector is connected on the negative circuit of the master, and the output end of the third high-voltage connector is adapted to the of vehicle
One motor.
8. the BDU of power battery pack as claimed in claim 7, which is characterized in that at least one described high-voltage connector also wraps
The 4th high-voltage connector is included, the first end of the 4th high-voltage connector is connected on the positive circuit of the master, the 4th high pressure
The second end of connector is connected on the negative circuit of the master, and the output end of the 4th high-voltage connector is adapted to the vehicle
The second motor.
9. the BDU of power battery pack as claimed in claim 7, which is characterized in that
At least one described high-voltage connector further includes the 5th high-voltage connector, the first end connection of the 5th high-voltage connector
In on the positive circuit of the master, the second end of the 5th high-voltage connector is connected on the negative circuit of the master, the 5th high pressure
The output end of connector is adapted to DCDC conversion module；
At least one described low pressure connector further includes third low pressure connector, one end of the third low pressure connector be suitable for
The low voltage communication circuit of the DCDC conversion module is connected, and the other end of the third low pressure connector is suitable for and the BMS mould
Block is connected.
10. the BDU of power battery pack as claimed in claim 2, which is characterized in that at least one described low pressure connector includes
One end of 4th low pressure connector, the 4th low pressure connector is connected with the BMS module, the 4th low pressure connector
The other end is adapted to vehicle telecommunication circuit.
11. the BDU of power battery pack as claimed in claim 6, which is characterized in that the protection device include preliminary filling resistance and
It is in parallel with the positive circuit of the master after preliminary filling contactor, the preliminary filling resistance and preliminary filling contactor series connection to be returned with forming preliminary filling
Road, pcb board upward wiring of the preliminary filling circuit in BDU.
12. the BDU of power battery pack as claimed in claim 6, which is characterized in that the protection device includes heating relay
With heating fuse, the heating relay and the heating fuse form heating circuit, and the heating circuit is in the BDU
Pcb board upward wiring.
13. a kind of power battery pack, which is characterized in that the power battery pack includes:
Backpack body；
Battery modules, the battery modules include multiple single batteries；
Such as the described in any item BDU of claim 1-12；
The battery modules and the BDU are all set in the backpack body.
14. power battery pack as claimed in claim 13, which is characterized in that
The BMS module of the BDU includes main control unit and multiple sub-control units, and the main control unit is set to described
In the shell of BDU, the multiple sub-control unit is arranged in the battery modules, for monitoring the multiple single battery
Electricity.
15. power battery pack as claimed in claim 13, which is characterized in that the power battery pack further include:
Charger unit, the charger unit are arranged in the backpack body；
High-voltage alternating connector, the high-voltage alternating connector are arranged on the backpack body, the high-voltage alternating connector it is defeated
Enter end to be connected with the charger unit, the output end of the high-voltage alternating connector is adapted to outside the power battery pack
High-voltage alternating device.
16. power battery pack as claimed in claim 13, which is characterized in that the power battery pack further include:
DCDC conversion module, the DCDC conversion module are arranged in the backpack body, for turning the output voltage of battery modules
It is changed to low pressure；
Low pressure output connector, the low pressure output connector are arranged on the backpack body, the low pressure output connector it is defeated
Enter end to be connected with DCDC conversion module, the output end of the low pressure output connector is suitable for and the low pressure electricity consumption outside power battery pack
Device is connected.
17. a kind of electric vehicle, which is characterized in that the electric vehicle includes as claim 13-16 is described in any item dynamic
Power battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014815A (en) * | 2019-05-14 | 2019-07-16 | 王文龙 | A kind of modular power assembly integration chassis |
| CN110401245A (en) * | 2019-08-01 | 2019-11-01 | 成都明然智能科技有限公司 | Battery system and its signal processing method, device and battery system power distribution equipment |
| CN113097762A (en) * | 2021-03-31 | 2021-07-09 | 中航光电科技股份有限公司 | Trade electric connector with BDU integrated |
| US20220123403A1 (en) * | 2020-10-20 | 2022-04-21 | Hyundai Motor Company | Battery pack |
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2018
- 2018-04-24 CN CN201820597205.6U patent/CN208198145U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014815A (en) * | 2019-05-14 | 2019-07-16 | 王文龙 | A kind of modular power assembly integration chassis |
| CN110401245A (en) * | 2019-08-01 | 2019-11-01 | 成都明然智能科技有限公司 | Battery system and its signal processing method, device and battery system power distribution equipment |
| US20220123403A1 (en) * | 2020-10-20 | 2022-04-21 | Hyundai Motor Company | Battery pack |
| CN113097762A (en) * | 2021-03-31 | 2021-07-09 | 中航光电科技股份有限公司 | Trade electric connector with BDU integrated |
| CN113097762B (en) * | 2021-03-31 | 2022-06-07 | 中航光电科技股份有限公司 | Trade electric connector with BDU integrated |
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