CN209365944U - Battery balanced device and electric vehicle with multiple motor-driven batteries - Google Patents

Battery balanced device and electric vehicle with multiple motor-driven batteries Download PDF

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Publication number
CN209365944U
CN209365944U CN201821554586.6U CN201821554586U CN209365944U CN 209365944 U CN209365944 U CN 209365944U CN 201821554586 U CN201821554586 U CN 201821554586U CN 209365944 U CN209365944 U CN 209365944U
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China
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battery
balanced
motor
component
driven
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CN201821554586.6U
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余晓华
胡林玉
王海洋
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Chongqing Guangyiyuan Battery Co Ltd
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Chongqing Guangyiyuan Battery Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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Abstract

This application provides a kind of battery balanced device and electric vehicle with multiple motor-driven batteries, battery balanced device is included at least: monitor, for obtaining the information about power of multiple batteries respectively;First balanced component and the second balanced component are respectively used to carry out electric quantity balancing to multiple batteries;Controller, it is connect respectively with monitor, the first balanced component and the second balanced component, controller is used to obtain the first battery to be balanced and the second battery to be balanced that information about power is less than default information about power according to the information about power of battery, and control the first balanced component and information about power equilibrium is carried out to the first battery to be balanced, it is balanced that the second balanced component of control carries out information about power to the second battery to be balanced.By the above-mentioned means, can be realized the information about power equilibrium to multiple batteries, it is balanced to carry out information about power to the serious battery pack of cracking, and it is avoided that waste electric energy, keep the electricity of primary battery group.

Description

Battery balanced device and electric vehicle with multiple motor-driven batteries
Technical field
This application involves technical field of battery balancing, more particularly to a kind of battery balanced dress with multiple motor-driven batteries It sets and electric vehicle.
Background technique
Electric vehicle and hybrid vehicle require battery pack as energy-storage system.Battery pack is usually by multiple batteries string Connection connection composition.Due to many factors in battery manufacturing process and use process, in fact it could happen that between series-connected cell The inconsistent situation of residual electric quantity.The unbalanced active volume that can reduce entire battery pack between battery.
For present inventor during long-term R & D, current battery pack balancing can only be to the minority electricity in battery pack Pond carries out electric quantity balancing, more serious in battery pack cracking, when multiple batteries need to carry out electric quantity balancing, cannot reach apparent electricity Portfolio effect is measured, and current battery pack balancing needs to carry out on electricity high battery electric discharge or battery and electricity that electricity is high It measures low battery and carries out equilibrium, waste electric energy, the electricity of primary battery group cannot be restored.
Utility model content
The application is mainly solving the technical problems that provide a kind of battery balanced device and electricity with multiple motor-driven batteries Motor-car carries out information about power equilibrium to multiple batteries to realize, and avoids waste electric energy, keeps the electricity of primary battery group.
In order to solve the above technical problems, this application provides a kind of battery balanced device with multiple motor-driven batteries, it should Battery balanced device is used for electric vehicle, which includes battery pack and battery balanced device, which includes being connected in series Multiple batteries, battery balanced device includes at least: monitor, for obtaining the information about power of multiple batteries respectively;First Weigh component and the second balanced component, is respectively used to carry out electric quantity balancing to multiple batteries;Controller, respectively with monitor, first Balanced component and the connection of the second balanced component, controller, which is used to obtain information about power according to the information about power of battery, is less than default electricity The first battery to be balanced and the second battery to be balanced of information are measured, and controls the first balanced component and the first battery to be balanced is carried out Information about power is balanced, and it is balanced that the second balanced component of control carries out information about power to the second battery to be balanced.
Wherein, the first balanced component includes: the first motor-driven battery and first switch component, and the first motor-driven battery and first open Component is closed to couple with controller, one end of first switch component connect with the first motor-driven battery, first switch component it is another End is connect with battery;Second balanced component include the second motor-driven battery and second switch component, one end of second switch component with Second motor-driven battery connection, the other end of second switch component are connect with battery;Controller controls first switch component for first Motor-driven battery and the connection of the first battery to be balanced, so that the first motor-driven battery carries out electric quantity balancing, control to the first battery to be balanced Device control second switch component processed connects the second motor-driven battery and the second battery to be balanced, so that the second motor-driven battery is to second Battery to be balanced carries out electric quantity balancing.
Wherein, the first balanced component is provided with the first grafting port, and the second balanced component is provided with the second grafting port, the One grafting port is connect so that the first balanced component and the second balanced component lamination to be arranged with the second grafting port.
Wherein, first switch component includes multiple first contacts, the second contact, contact disk and movable pointer, the second touching Point is arranged in the intermediate region of contact disk, and the first contact arrangement is distributed in the outside of intermediate region, one end of movable pointer with Second contact connection, when controller control switch component connects motor-driven battery with battery to be balanced, movable pointer it is another End rotates to the first contact connecting with battery to be balanced, so that the second contact is connect with the first contact.
Wherein, multiple first contacts of first switch component are correspondingly arranged with multiple first contacts of second switch component.
Wherein, the first balanced component further comprises shell and fixed plate, wherein the bottom of shell is arranged in contact disk Portion, fixed plate are fixed on shell by rotation axis, and movable pointer is arranged in fixed plate, and the other end setting of movable pointer exists Fixed plate is on the surface of contact disk.
Wherein, the first balanced component further comprises motor, spring and connector, wherein motor respectively with controller and Connector connection, spring are arranged between contact disk and fixed plate;Controller control motor work, motor driven connector with Fixed plate connection, and connector drives fixed plate to rotate under the drive of the motor so that the other end of movable pointer rotate to First contact of battery to be balanced connection;First balanced component further comprises pawl casing, and shell is arranged in pawl casing It on side wall, and is correspondingly arranged with fixed plate, pawl casing is used to be kept fixed plate along a direction selection, and to fixed plate It is positioned.
Wherein, the first balanced component include: the first motor-driven battery, shell, battery compartment, motor, connector, contact disk, Fixed plate and pawl, wherein battery compartment is connect by connecting rod with connector for accommodating the first motor-driven battery, motor, is connected Part is provided with inclined-plane haptic element far from the side of the motor, and fixed plate is provided with through-hole, and through-hole is fixed for accommodating inclined-plane haptic element Plate is provided with elastic slice far from the side of connector, and the bottom of shell is provided with a limit shaft, and fixed plate is arranged in the limit shaft On, and moved along limit shaft.
Wherein, first switch component includes by the first contact arranged in a straight line, guide rail, the second contact and connector, connection One end of part is set on guide rail, and the other end of connector is selectively connect with the first contact, and multiple first contacts and guide rail are flat One end of row setting, the second contact and connector connects, and the first contact is connect with battery, and the second contact connects with the first motor-driven battery It connects;When controller control first switch component connects the first motor-driven battery and the first battery to be balanced, connector is along leading Rail is mobile, so that the other end of connector and the first contact connecting with the first battery to be balanced connection.
In order to solve the above technical problems, present invention also provides a kind of electric vehicle, which includes battery pack and above-mentioned Battery balanced device.
Compared with prior art, the beneficial effect of the application is: the embodiment of the present application has the battery of multiple motor-driven batteries Balancer and electric vehicle, the battery balanced device are used for electric vehicle, which includes battery pack and battery balanced device, are somebody's turn to do Battery pack includes the multiple batteries being connected in series, and battery balanced device includes at least: monitor, for obtaining multiple batteries respectively Information about power;First balanced component and the second balanced component are respectively used to carry out electric quantity balancing to multiple batteries;Controller, It is connect respectively with monitor, the first equalizing circuit and the second equalizing circuit, the controller is used for the information about power according to battery The first battery to be balanced and the second battery to be balanced that information about power is less than default information about power are obtained, and controls the first balanced group Part carries out electric quantity balancing to the first battery to be balanced, and the second balanced component of control carries out electric quantity balancing to the second battery to be balanced. By the above-mentioned means, the embodiment of the present application can be by least two balanced components at least two carry out information about power to be equalized Equilibrium, to carry out information about power equilibrium to the serious battery pack of cracking, meanwhile, the embodiment of the present application can monitor the electricity of battery Information, and equilibrium is carried out to the information about power of battery when the information about power of battery is less than preset information about power, therefore can Waste electric energy is avoided, the electricity of primary battery group is kept.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.Wherein:
Fig. 1 is the structure for the battery balanced device first embodiment that the application has multiple motor-driven batteries
Schematic diagram;
Fig. 2 is the flow diagram of one embodiment of the application battery equalization method;
Fig. 3 is the partial structure diagram of Fig. 1 embodiment battery balanced device;
Fig. 4 is the structural schematic diagram of battery pack in Fig. 1;
Fig. 5 is that the application has the first balanced component in the battery balanced device of multiple motor-driven batteries
The structural schematic diagram of second embodiment;
Fig. 6 is the structural schematic diagram of first switch component in Fig. 5 embodiment;
Fig. 7 is the flow diagram of another embodiment of the application battery equalization method;
Fig. 8 A is that the application has the first balanced component in the battery balanced device of multiple motor-driven batteries
The structural schematic diagram of 3rd embodiment;
Fig. 8 B is the concrete structure schematic diagram of contact disk in Fig. 8 A embodiment;
Fig. 8 C is the concrete structure schematic diagram of fixed plate in Fig. 8 A embodiment;
Fig. 8 D is the concrete structure schematic diagram of connector in Fig. 8 A embodiment;
Fig. 8 E is the left view of Fig. 8 C embodiment connector;
Fig. 8 F is the front view of Fig. 8 C embodiment connector;
Fig. 8 G is the connection schematic diagram of motor-driven battery and battery pack in Fig. 8 A embodiment;
Fig. 9 is the structural schematic diagram of the application the first balanced component fourth embodiment;
Figure 10 is the structural schematic diagram of the 5th embodiment of the first balanced component of the application;
Figure 11 is the structural schematic diagram of one embodiment of the application electric vehicle.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.It is based on Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall in the protection scope of this application.
Fig. 1 and Fig. 2 is please referred to, Fig. 1 is the knot for one embodiment of battery balanced device that the application has multiple motor-driven batteries Structure schematic diagram;Fig. 2 is the flow diagram of one embodiment of the application battery equalization method.The battery balanced device of the present embodiment 101 are used for electric vehicle, which includes battery pack 102 and the battery balanced device 103 with multiple motor-driven batteries, battery pack 102 include the multiple batteries 104 being connected in series, and the present embodiment battery balanced device 103 includes at least: monitor 105, first is equal Weigh component 106, the second balanced component 107 and controller 108, wherein monitor 105 for obtaining multiple batteries 104 respectively Information about power;First balanced component 106 and the second balanced component 107 are respectively used to carry out electric quantity balancing to multiple batteries 104;Control Device 108 processed is connect with monitor 105, the first balanced component 106 and the second balanced component 107 respectively, and controller 108 is used for basis The information about power of battery 104 obtains the first battery to be balanced and the second electricity to be equalized that information about power is less than default information about power Pond, and control the first balanced component 106 and electric quantity balancing is carried out to the first battery to be balanced, the second balanced component 107 of control is to the Two battery to be balanceds carry out electric quantity balancing.
Wherein, 104 information about power of battery can specifically include remaining capacity, cell voltage, battery the output electricity of battery 104 At least one of pressure or cell output current.
Battery equalization method shown in Fig. 2 can be used for battery balanced device 103 shown in FIG. 1, the method packet of the present embodiment Include following steps:
Step S201: controller 108 obtains the information about power of multiple batteries 104 by monitor 105.
Wherein, after battery pack 102 completes charge or discharge process, each battery 104 of 105 real-time monitoring of monitor Information about power.Specifically, controller 108 is after the information for receiving the completion charge or discharge of battery pack 102, control monitor 105 monitor the information about power of each batteries 104, and the information about power of each battery 104 is obtained from monitor 105.
Step S202: information about power is compared by controller 108 with default information about power, is obtained information about power and is less than in advance If the first battery to be balanced and the second battery to be balanced of information about power.
Wherein, controller 108 is previously provided with information about power, and controller 108 obtains each battery 104 from monitor 105 Information about power, and the information about power of each battery 104 is compared with information about power, such as controller 108 is by each electricity The remaining capacity and information about power in pond 104 are compared.
If controller 108 determines information about power less than information about power, information about power is less than electricity by controller 108 The battery 104 of information is labeled as the first battery to be balanced and/or the second battery to be balanced, to obtain the first battery to be balanced and the Two battery to be balanceds, and enter step S203.If controller 108 determines information about power more than or equal to information about power, Controller 108 determines each battery 104 without carrying out equilibrium treatment, terminates.
Step S203: controller 108 controls the first balanced component 105 and carries out electric quantity balancing, control to the first battery to be balanced It makes the second balanced component 106 and electric quantity balancing is carried out to the second battery to be balanced.
It certainly, in other embodiments can also be by more than two balanced components respectively to more than two to be equalized It is balanced that battery carries out information about power.
It is different from the prior art, there is the present embodiment the battery balanced device of multiple motor-driven batteries can pass through at least two Balanced component carries out electric quantity balancing at least two battery to be balanceds, and it is equal can to carry out information about power to the serious battery pack of cracking Weighing apparatus, meanwhile, the present embodiment can monitor the information about power of battery, and when the information about power of battery is less than preset information about power Equilibrium is carried out to the information about power of battery, therefore can be avoided waste electric energy, keeps the electricity of primary battery group.
Optionally, as shown in Figures 3 and 4, Fig. 3 is the partial structure diagram of Fig. 1 embodiment battery balanced device;Fig. 4 It is the structural schematic diagram of battery pack in Fig. 1.First balanced component (figure is not marked) of the present embodiment includes: the first motor-driven battery 301 And first switch component 302, the first motor-driven battery 301 and first switch component 302 are coupled with controller 108, first switch One end of component 302 is connect with the first motor-driven battery 301, and the other end of first switch component 302 is connect with battery 104, that is, is opened The other end property of can choose for closing component 302 is connect at least one battery in multiple batteries 104.
Controller 108 controls first switch component 301 and connects the first motor-driven battery 302 and the first battery to be balanced 303, So that the first motor-driven battery 302 carries out electric quantity balancing to the first battery to be balanced 303, controller 108 controls second switch component Second motor-driven battery and the second battery to be balanced are connected, so that the second motor-driven battery is equal to the second battery to be balanced progress electricity Weighing apparatus.
Specifically, first balanced component 106 of the present embodiment can using following methods to the first battery to be balanced 303 into Row electric quantity balancing: when controller 108 gets the first battery to be balanced 303 by the above method, controller 108 is referred to by control Control first switch component 302 is enabled to be connected, i.e. one end of first switch component 302 is connected with the other end, and then motor-driven by first Battery 301 and the connection of the first battery to be balanced 303.For example, one end of first switch component 302 includes the first connecting pin and second Connecting pin, the other end of first switch component 302 include third connecting pin and the 4th connecting pin, and the first connecting pin and second connect End is connect with the both ends of the first motor-driven battery 301 respectively, third connecting pin and the 4th connecting pin respectively with the first battery to be balanced 303 both ends connection;When one end of first switch component 302 is connected with the other end, i.e. the first connecting pin and third connecting pin Connection, second connection end are connected with the 4th connecting pin.
When the first motor-driven battery 301 and the first battery to be balanced 303 connect, the first motor-driven battery 301 and first is to equal Weighing apparatus battery 303 carries out equilibrium, since the electricity of the first motor-driven battery 301 is greater than the electricity of the first battery to be balanced 303, The information about power of the first battery to be balanced 303 after weighing apparatus can be greater than or equal to the first information about power.
Further, when controller 108 determines information about power more than or equal to the first information about power, then controller 108 control first switch components 302 disconnect the first motor-driven battery 301 and the first battery to be balanced 303, i.e., to be equalized first After battery 303 completes equilibrium by the first motor-driven battery 301, controller 108 controls one end of first switch component 302 and another End disconnects, so that the first motor-driven battery 301 and the first battery to be balanced 303 disconnect.
Monitor 105 is connect with controller 108, and monitor 105 is for monitoring each battery 104, to obtain each battery 104 information about power.Wherein, monitor 105 can be connect with the positive and negative anodes of each battery 104 respectively.The controller 108 can be with For power-supply management system (BMS, Battery Management System) or microcontroller.
Optionally, the present embodiment in the first balanced component 106 is provided with the first grafting port 109, the second balanced component 107 are provided with the second grafting port 110, and the first grafting port 109 is connect with by the first balanced component with the second grafting port 110 106 and 107 lamination of the second balanced component be arranged.
By this setup, the size of battery balanced device 103 can be reduced, improves its integrated level.
Optionally, as shown in Figures 5 and 6, Fig. 5 is that the application has first in the battery balanced device of multiple motor-driven batteries The structural schematic diagram of the second embodiment of balanced component;Fig. 6 is the structural schematic diagram of first switch component in Fig. 5 embodiment.This The first switch component 601 of embodiment include at least first terminal 602 and Second terminal 603, multiple first terminals 602 respectively with The both ends of multiple batteries 104 connect, and Second terminal 603 is connect with the both ends of the first motor-driven battery 501, controller (not shown) root Corresponding first touching 602 of the first battery to be balanced (not shown) is obtained according to location information, and by the first terminal 602 and second end Son 603 connects, so that the first motor-driven battery 501 is connected with the first battery to be balanced.
Wherein, first balanced component 106 of the present embodiment can using method shown in Fig. 7 to the first battery to be balanced into Row electric quantity balancing, the method for the present embodiment the following steps are included:
S701: controller obtains the location information of the first battery to be balanced.
Since battery pack includes the battery of multiple series connections, the first battery to be balanced time control is got in controller Device processed obtains the location information of the first battery to be balanced.Such as each battery is correspondingly arranged on number, controller can be according to volume Number the location information of the first battery to be balanced is obtained, it is motor-driven by first to enable the controller to accurately to control first switch component Battery and the connection of the first battery to be balanced.
S702: controller obtains the first terminal connecting with the first battery to be balanced according to location information, and control first is opened The Second terminal for closing component is connect with first terminal, and Second terminal is further connect with the first motor-driven battery.
Wherein, first switch component 601 includes at least first terminal 602 and Second terminal 603, multiple first terminals 602 It is connect respectively with the both ends of multiple batteries, Second terminal 603 is connect with the both ends of the first motor-driven battery 501.Controller is according to position The corresponding first terminal 602 of the first battery to be balanced of acquisition of information is set, and the first terminal 602 and Second terminal 603 are connected, So that the first motor-driven battery 501 is connected with the first battery to be balanced.
The present embodiment controller obtains corresponding first terminal 602 according to the location information of the first battery to be balanced, can It realizes positioning, improves accuracy.
Specifically, the present embodiment first switch component 601 includes at least multiple first terminals 602, Second terminal 603, touching Point disk 604 and movable pointer 605, wherein first terminal 602 and Second terminal 603 are arranged on contact disk 604.Wherein, The intermediate region of contact disk 604 is arranged in Second terminal 603, i.e., is equipped with Second terminal in the centre bit of contact disk 604 603, the quantity of Second terminal 603 can be set to two, and two Second terminals 603 are connect with the both ends of balancing battery respectively. The outside of the intermediate region of multiple 602 arranged distribution contact disks 503 of first terminal, i.e., multiple first terminals 602 are along contact The edge arrangement of disk 604 is set.One end of movable pointer 605 is connect with Second terminal 603, and the other end of movable pointer 605 can It is connect with selectivity with first terminal 602.
If controller determines information about power more than or equal to information about power, controller controls the another of movable pointer 605 End is hanging, so that first terminal 602 and Second terminal 603 disconnect.Wherein, controller control movable pointer 605 is arranged first Position, the other end of movable pointer 605 is hanging at this time.When Second terminal 603 and first terminal 602 connect, controller control The setting of movable pointer 605 is in the second position, and wherein first position is located above the second position.
Optionally, the first balanced component of the present embodiment further comprises shell 502, motor 503, spring 504, connector 505, fixed plate 506 and pawl casing 507.Wherein, movable pointer 605 is arranged in fixed plate 506, and fixed plate 506 passes through Rotation axis is fixed on shell 502, and Second terminal 603 is arranged on the rotating shaft, one end of movable pointer 605 and Second terminal Fixed plate 506 is arranged on the surface of contact disk 604 in 603 connections, the other end of movable pointer 605.Contact disk 604 It is fixed at the bottom of shell 502, spring 504 is arranged between contact disk 604 and fixed plate 506.Pawl casing 507 is set It sets on the side wall of shell 502, is correspondingly arranged with fixed plate 506, pawl casing 507 is for being kept fixed plate 506 along one Direction selection, and fixed plate 506 is positioned.
The top of contact disk 604 is arranged in motor 503, and the first motor-driven battery 501 is arranged in shell 502, and the One motor-driven battery 501 is located at the top of motor 503, for powering for motor 503.Controller and monitor may further and electricity Machine 503 is set together, and motor 503 is connect with controller, and controller is for controlling the work of motor 503.In other implementations Example, controller and monitor can also be arranged in outside shell 502, and details are not described herein.The rotating bar and connector of motor 503 505 connections, when motor 503 works, band follower link 505 is rotated.
Information about power is determined more than or equal to the first information about power, i.e., when battery is without carrying out balanced, electricity in controller Machine 503 stops working, and connector 505 and fixed plate 506 separate at this time, and fixed plate 506 is round with contact under the action of spring 504 Disk 604 is separated by a certain distance, the setting of movable pointer 605 in the second position, positioned at fixed plate 506 movable pointer 605 it is another End is hanging, so that first terminal 602 and Second terminal 603 disconnect.
Information about power is determined less than the first information about power in controller, and controller controls motor 503 and works, connector 505 connect in the effect of motor 503 with fixed plate 506, and fixed plate 506 is driven to rotate, and according to location information by movable pointer 605 other end turns to the top of the first terminal of the first battery to be balanced.Controller further pushes connector 505 and consolidates Fixed board 506, movable pointer 605 are arranged in first position, so as to be located at the other end and the of the movable pointer 605 of fixed plate 506 One terminal abuts, and then realizes that the first motor-driven battery 501 is connected with the first battery to be balanced.
The present embodiment structure is simple and small in size, can realize movable pointer 605 while guaranteeing battery balanced performance Without terminal corresponding with the first battery to be balanced on connecting terminal disk 604 is pulled, avoid movable pointer 605 when selecting terminal Repeatedly friction, and then improve the service life of movable pointer 605.
Further, the first balanced component of the present embodiment further comprises socket 508, for the first balanced component with it is other Balanced component carries out grafting.
Wherein, the quantity of the first terminal of the present embodiment, Second terminal and movable pointer 605 is arranged in a one-to-one correspondence.For example, Two first terminals are connect with the both ends of the first battery to be balanced respectively, corresponding two Second terminals respectively with the first motor-driven electricity The both ends in pond 501 connect, and there are two movable pointers 605 for the setting of fixed plate 506.
The movable pointer 605 of the present embodiment is that quantity is 1, does not limit the quantity of movable pointer in other embodiments, can To be greater than or equal to 2.
Wherein, the second balanced component of the application includes the second motor-driven battery and second switch component, second switch component One end connect with the second motor-driven battery, the other end of second switch component is connect with battery.
The application it is further proposed that 3rd embodiment the first balanced component, as shown in figures 8 a-8d, Fig. 8 A be the application tool There is the structural schematic diagram of the first balanced component 3rd embodiment in the battery balanced device of multiple motor-driven batteries;Fig. 8 B is Fig. 8 A real Apply the concrete structure schematic diagram of contact disk in example;Fig. 8 C is the concrete structure schematic diagram of fixed plate in Fig. 8 A embodiment;Fig. 8 D It is concrete structure schematic diagram Fig. 8 E of connector in Fig. 8 A embodiment is the left view of Fig. 8 C embodiment connector;Fig. 8 F is Fig. 8 C The front view of embodiment connector;Fig. 8 G is the connection schematic diagram of motor-driven battery and battery pack in Fig. 8 A embodiment.The present embodiment The first balanced component 801 include: the first motor-driven battery, shell 812, battery compartment 802, motor 813, connector 808, fixed plate 806, contact disk 804 and pawl 814.
Battery compartment 802 is connect by connecting rod 815 with connector 808 for accommodating the first motor-driven battery 817, motor 813, Connector 808 is provided with inclined-plane haptic element 809 far from the side of motor 813.The bottom of shell 812 is provided with a limit shaft, and (figure is not Mark, be arranged with spring 811 on limit shaft), fixed plate 806 is arranged on limit shaft, and can move along limit shaft;It is fixed Plate 806 can be used for accommodating inclined-plane haptic element 809 by being provided with through-hole 807, through-hole 807;Fixed plate 806 is far from connector 808 Side be provided with elastic slice 810.
Contact disk 804 is provided with multiple contacts 805 and multiple contact pins 816, and each contact pin 816 can be by being welded on touching On point disk 804, and each contact 805 is connected with corresponding contact pin 816, and elastic slice 810 is used to connect with corresponding contact 805 It connects;Pawl 814 is arranged on the side wall of shell 812, is correspondingly arranged with fixed plate 806, pawl 814 be used for fixed plate 806 into Row positioning.
Wherein, the inclined-plane haptic element 809 of the present embodiment includes the first inclined-plane haptic element 8091 and the second inclined-plane haptic element 8092, and the One inclined-plane haptic element 8091 and the second inclined-plane haptic element 8092 be it is trapezoidal, this structure can reduce inclined-plane haptic element 809 pass in and out through-hole Friction when 807.
When battery balanced device 801 carries out equilibrium to battery to be balanced 818 by motor-driven battery 817, motor 813 passes through Connecting rod drive connection part 808 is rotated, and then inclined-plane haptic element 809 rotates, and inclined-plane haptic element 809 is connected in fixed plate 806, And certain pressure is applied to fixed plate 806, so that fixed plate 806 pushes and reduces its clearance gap between contact disk 804 From so that elastic slice 810 is contacted with the contact 805 of contact disk 804.Wherein, elastic slice 810 includes the first elastic slice 8101 and the second bullet Piece 8102, the cathode of motor-driven battery 817 are contacted with the first elastic slice 8101, and the cathode of motor-driven battery 817 connects with the first elastic slice 8101 Touching is connect, with second with the cathode of battery to be balanced 818 by corresponding contact pin 816 with the first elastic slice 8101 contact contact 805 Elastic slice 8102 contacts contact 805 and is connect by the positive of corresponding contact pin 816 and battery to be balanced 818, and then by motor-driven battery 817 are connected in parallel with battery to be balanced 818, realize battery balanced.
When battery to be balanced 818 completes equilibrium, 813 drive connection part 808 of motor drives inclined-plane haptic element 809 to rotate, tiltedly Face haptic element 809 slides into through-hole 807, and spring 811 jacks up fixed plate 806, at this point, depositing between fixed plate 806 and contact disk 804 In certain interval, the contact 805 of elastic slice 810 and contact disk 804 is disconnected, the normal charge and discharge of battery at this time.
The present embodiment battery pack is provided with socket 803, draws contact pin 816 for connecting and connect with battery to be balanced.
The lifting and rotational positioning of fixed plate 806 may be implemented by inclined-plane haptic element 809 for the present embodiment.
Further, the present embodiment further comprises socket 819, for the first balanced component 801 and other balanced components Carry out grafting.
Further, the present embodiment can detect the on-position of motor-driven battery 817 by photoelectric sensor etc., specifically Ground can be obtained by detecting the voltage difference between the cathode of motor-driven battery 817 and the cathode of first battery of battery pack The on-position of motor-driven battery 817;At the same time it can also be obtained by the gear position of the detection pawl 814 such as photoelectric sensor The position corresponding with elastic slice 810 of contact disk 804.
Wherein, the specific structure and equalization methods of the second balanced component of the application are identical as the first balanced component, Gu not It repeats.
The application further provides for the battery balanced device of fourth embodiment, as shown in figure 9, the present embodiment is in above-mentioned implementation It is described on the basis of example, the present embodiment has the first balanced component 902 of the battery balanced device 901 of multiple motor-driven batteries And the setting of 903 lamination of the second balanced component, and the first terminal 905 of first switch component 904 and second switch component 906 is more A first terminal 907 is correspondingly arranged.
It specifically, can be by the internal wiring in the second balanced component 903 by the first terminal of first switch component 904 905 are correspondingly connected with multiple first terminals 907 of second switch component 906.
When controller 908 has determined multiple battery to be balanceds, can control 902 pairs of a part of the first balanced component to Balancing battery carries out electric quantity balancing, and the second balanced component 903 of control carries out electric quantity balancing to another part battery to be balanced.
Specifically, controller 908 first switch component 904 and second switch component 906 can be carried out Time-sharing control or Person controls simultaneously.It, can be with for example, when controller carries out Time-sharing control to first switch component 904 and second switch component 906 Control first switch component 904 fixed plate rotation so that the Second terminal of first switch component 904 be located at region A and area The first terminal of domain B connects, so that the first motor-driven battery is balanced to battery progress corresponding with region A and region B in battery pack, Can control second switch component 906 fixed plate rotation so that the Second terminal of second switch component 906 be located at region C And the first terminal connection of region D, so that the first motor-driven battery carries out battery corresponding with region D and region D in battery pack It is balanced.
In this way, electric quantity balancing can be carried out to multiple batteries when the cracking of battery pack is serious.
In one embodiment, the electricity of the motor-driven battery in different balanced components can be different, and monitor can detecte often The specific electricity of a battery to be balanced, controller can select to match with the electricity according to the specific electricity of each battery to be balanced Motor-driven battery carry out electric quantity balancing.In this way, it not only can achieve preferable portfolio effect, and entire electricity can be improved The equalization efficiency of pond group.
About balanced component to the specific balancing procedure of battery to be balanced, it is described in above-described embodiment, here It does not repeat.
In one embodiment, the switch block in multiple balanced components can share a contact disk.
Application further provides for the battery balanced device of the 5th embodiment, as shown in Figure 10, the first switch of the present embodiment Component 1001, which includes at least, presses first terminal 1002 arranged in a straight line, guide rail 1003, Second terminal 1004 and connector 1005.
Wherein, one end of connector 1005 is set on guide rail 1003, and connector 1005 can led by motor driven It is moved on rail 1003.The other end of connector 1005 is selectively connect with first terminal 1002, multiple first ends arranged in a straight line Son 1002 is arranged in parallel with guide rail 1003, and Second terminal 1004 is further connect with one end of connector 1005.
The first switch component 1001 of the present embodiment may include two connectors, 1005, two first terminals 1002 and two A Second terminal 1004, two Second terminals 1004 are correspondingly connected with two connectors 1005 respectively, and two Second terminals 1004 are connected to the both ends of motor-driven battery;Two first terminals 1002 are connected to the both ends of the first battery to be balanced.
Controller controls connector 1005 according to location information and moves along guide rail 1003, so that connector 1005 is another One end is connect with first terminal 1002.Wherein, controller is according to location information driving motor, so that connector 1005 is along leading Rail 1003 is mobile, and the top of first terminal 1002, the further driving motor rotation of controller are located to the other end of connector 1005 Turn, so that the other end of connector 1005 is connect with first terminal 1002, connector 1005 is located at first position, and then the first machine Dynamic battery is connect by connector 1005 with the first battery to be balanced 303.
If controller determines information about power more than or equal to the first information about power, controller controls the other end of connector Vacantly, so that first terminal 1002 and Second terminal 1004 disconnect.Wherein, controller control motor control connector 1005 revolves Turn, the other end of connector 1005 is hanging, and connector 1005 is arranged in the second position.The other end of connector 1005 and at this time One terminal 902 disconnects.
Compared with the balancer of second embodiment, the balancer structure of the present embodiment is simpler, it is easy to accomplish, Save the cost.
In another embodiment, balancer can further include third balanced component, and third balanced component includes One end of the motor-driven battery of third, the first motor-driven battery is connect with first switch component, the other end and third of the first motor-driven battery It is equal that motor-driven battery connection, the first motor-driven battery and the motor-driven battery of third carry out electricity to the first battery to be balanced in a series arrangement Weighing apparatus.
The application is it is further proposed that a kind of electric vehicle, as shown in figure 11, electric vehicle include battery pack 1101 and balancer 1102, the wherein top preset interface of battery pack 1101, so that the top of battery pack 1101 is arranged in balancer 1002, this is Weighing apparatus device 1102 is the revealed balancer of above-described embodiment, and details are not described herein.
Be different from the prior art, the embodiment of the present application have multiple motor-driven batteries battery balanced device and equalization methods, Electric vehicle, the battery balanced device are used for electric vehicle, which includes battery pack and battery balanced device, which includes The multiple batteries being connected in series, battery balanced device include at least: monitor, and the electricity for obtaining multiple batteries respectively is believed Breath;First balanced component and the second balanced component are respectively used to carry out electric quantity balancing to multiple batteries;Controller, respectively with prison Device, the first equalizing circuit and the connection of the second equalizing circuit are surveyed, the controller is used to obtain electricity according to the information about power of battery Information is less than the first battery to be balanced and the second battery to be balanced of default information about power, and controls the first balanced component to first Battery to be balanced carries out electric quantity balancing, and the second balanced component of control carries out electric quantity balancing to the second battery to be balanced.By above-mentioned Mode, the embodiment of the present application can be balanced at least two progress information about power to be equalized by least two balanced components, with Information about power equilibrium is carried out to the serious battery pack of cracking, meanwhile, the embodiment of the present application can monitor the information about power of battery, and Equilibrium is carried out to the information about power of battery when the information about power of battery is less than preset information about power, therefore can be avoided waste Electric energy keeps the electricity of primary battery group.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other Technical field similarly includes in the scope of patent protection of the application.

Claims (10)

1. a kind of battery balanced device with multiple motor-driven batteries, which is characterized in that be used for electric vehicle, the electric vehicle includes Battery pack and the battery balanced device, the battery pack include the multiple batteries being connected in series, and the battery balanced device is extremely Include: less
Monitor, for obtaining the information about power of the multiple battery respectively;
First balanced component and the second balanced component are respectively used to carry out electric quantity balancing to multiple batteries;
Controller is connect with the monitor, first balanced component and second balanced component, the controller respectively For obtaining the first battery to be balanced and second that information about power is less than default information about power according to the information about power of the battery Battery to be balanced, and control first balanced component and information about power equilibrium is carried out to first battery to be balanced, control institute It states the second balanced component and information about power equilibrium is carried out to second battery to be balanced.
2. the battery balanced device according to claim 1 with multiple motor-driven batteries, which is characterized in that described first Weighing apparatus component includes: the first motor-driven battery and first switch component, the first motor-driven battery and the first switch component with The controller coupling, one end of the first switch component are connect with the described first motor-driven battery, the first switch component The other end connect with the battery;Second balanced component includes the second motor-driven battery and second switch component, and described the One end of two switch blocks is connect with the described second motor-driven battery, and the other end and the battery of the second switch component connect It connects;
The controller controls the first switch component and connects the described first motor-driven battery with first battery to be balanced, So that the first motor-driven battery carries out electric quantity balancing to first battery to be balanced, the controller control described second is opened It closes component to connect the described second motor-driven battery with second battery to be balanced, so that the second motor-driven battery is to described the Two battery to be balanceds carry out electric quantity balancing.
3. the battery balanced device according to claim 2 with multiple motor-driven batteries, which is characterized in that described first Weighing apparatus component is provided with the first grafting port, and second balanced component is provided with the second grafting port, first grafting port It is connect with second grafting port first balanced component and the second balanced component lamination to be arranged.
4. the battery balanced device according to claim 3 with multiple motor-driven batteries, which is characterized in that described first opens Closing component includes multiple first contacts, the second contact, contact disk and movable pointer, and second contact is arranged in the contact The intermediate region of disk, first contact arrangement are distributed in the outside of the intermediate region, one end of the movable pointer with The second contact connection, controls the switch block in the controller and connects the motor-driven battery and the battery to be balanced When connecing, the other end of the movable pointer rotates to the first contact connecting with the battery to be balanced, so that second touching Point is connect with first contact.
5. the battery balanced device according to claim 4 with multiple motor-driven batteries, which is characterized in that described first opens Multiple first contacts of multiple first contacts and the second switch component of closing component are correspondingly arranged.
6. the battery balanced device according to claim 4 with multiple motor-driven batteries, which is characterized in that described first The component that weighs further comprises shell and fixed plate, wherein the bottom of the shell, the fixed plate is arranged in the contact disk Fixed on the housing by rotation axis, the movable pointer is arranged in the fixed plate, the movable pointer it is another The fixed plate is arranged on the surface of the contact disk in end.
7. the battery balanced device according to claim 6 with multiple motor-driven batteries, which is characterized in that described first The component that weighs further comprises motor, spring and connector, wherein the motor connects with the controller and the connector respectively It connects, the spring is arranged between the contact disk and the fixed plate;The controller controls the motor work, described Connector described in motor driven is connect with the fixed plate, and the connector drives the fixation under the driving of the motor Plate rotation, so that the other end of the movable pointer rotates to the first contact connecting with first battery to be balanced;
First balanced component further comprises pawl casing, and the pawl casing is arranged on the side wall of the shell, and It is correspondingly arranged with the fixed plate, the pawl casing is used to keep the fixed plate along a direction selection, and to institute Fixed plate is stated to be positioned.
8. the battery balanced device according to claim 1 with multiple motor-driven batteries, which is characterized in that described first The component that weighs includes: the first motor-driven battery, shell, battery compartment, motor, connector, contact disk, fixed plate and pawl, wherein institute It states battery compartment and is connect by connecting rod with the connector for accommodating the described first motor-driven battery, the motor, the connection Part is provided with inclined-plane haptic element far from the side of the motor, and the fixed plate is provided with through-hole, and the through-hole is described for accommodating Inclined-plane haptic element, the fixed plate are provided with elastic slice far from the side of the connector, and the bottom of the shell is provided with a limit Axis, the fixed plate setting are moved on the limit shaft, and along the limit shaft.
9. the battery balanced device according to claim 2 with multiple motor-driven batteries, which is characterized in that described first opens Closing component includes that one end of the connector, which is set in, leads by the first contact arranged in a straight line, guide rail, the second contact and connector On rail, the other end of the connector is selectively connect with first contact, and multiple first contacts and the guide rail are flat Row setting, second contact are connect with one end of the connector, and first contact is connect with the battery, and described second Contact is connect with the motor-driven battery;
The first switch component is controlled in the controller to connect the described first motor-driven battery and first battery to be balanced When connecing, the connector is moved along the guide rail so that the other end of the connector and with first battery to be balanced The first contact connection of connection.
10. a kind of electric vehicle, which is characterized in that the electric vehicle includes battery pack and described in any one of claim 1-9 Battery balanced device with multiple motor-driven batteries.
CN201821554586.6U 2018-09-21 2018-09-21 Battery balanced device and electric vehicle with multiple motor-driven batteries Active CN209365944U (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821554586.6U CN209365944U (en) 2018-09-21 2018-09-21 Battery balanced device and electric vehicle with multiple motor-driven batteries

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110696625A (en) * 2019-11-18 2020-01-17 珠海格力电器股份有限公司 Control method of battery management system and active balancing topology device
CN110936853A (en) * 2018-09-21 2020-03-31 重庆广亿源电池有限公司 Battery balancing device with multiple motor-driven batteries, balancing method and electric vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110936853A (en) * 2018-09-21 2020-03-31 重庆广亿源电池有限公司 Battery balancing device with multiple motor-driven batteries, balancing method and electric vehicle
CN110936853B (en) * 2018-09-21 2024-01-23 重庆广亿源电池有限公司 Battery balancing device with multiple motor batteries, balancing method and electric vehicle
CN110696625A (en) * 2019-11-18 2020-01-17 珠海格力电器股份有限公司 Control method of battery management system and active balancing topology device

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