CN111682134B - Anti-theft battery, battery module and cabinet - Google Patents

Anti-theft battery, battery module and cabinet Download PDF

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Publication number
CN111682134B
CN111682134B CN202010482872.1A CN202010482872A CN111682134B CN 111682134 B CN111682134 B CN 111682134B CN 202010482872 A CN202010482872 A CN 202010482872A CN 111682134 B CN111682134 B CN 111682134B
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battery
theft
battery module
positive
negative
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CN111682134A (en
Inventor
钟正
周岿
乐斌
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Huawei Digital Power Technologies Co Ltd
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Huawei Digital Power Technologies Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application provides an anti-theft battery, a battery module and a cabinet. The anti-theft battery comprises a battery shell, a pole core and a disconnecting element, wherein the pole core and the disconnecting element are arranged in the battery shell, the pole core is provided with a positive pole lug and a negative pole lug, the battery shell is provided with a positive pole post and a negative pole post, the positive pole post is electrically connected to the positive pole lug, the negative pole post is electrically connected to the negative pole lug to form a conductive loop, the disconnecting element is arranged on the conductive loop, and the disconnecting element is used for receiving a trigger signal to cut off or short circuit the conductive loop; the trigger signal is generated by the pole core and transmitted to the disconnecting element when the anti-theft battery is displaced, or the trigger signal is generated by a BMS board used for controlling the anti-theft battery and transmitted to the disconnecting element when the anti-theft battery is displaced. The technical scheme of this application can realize energy storage battery's effective theftproof.

Description

Anti-theft battery, battery module and cabinet
Technical Field
The application relates to the technical field of communication, in particular to an anti-theft battery, a battery module and a cabinet.
Background
At present, the energy storage battery has the advantages of small size, light weight, long cycle life and the like, and is widely applied to the fields of communication base stations, data centers, energy storage power stations, electric vehicles and the like. With the expansion of the application field of the energy storage battery, outdoor cabinets, base stations in remote areas and the like are applied in a large scale, however, the phenomenon that the energy storage battery is stolen is very serious due to human factors in part of areas, and the equipment applying the energy storage battery cannot operate normally. How to design a structure of an energy storage battery can realize effective theft prevention of the energy storage battery, which is a subject continuously explored in the industry.
Disclosure of Invention
The embodiment of the application provides an anti-theft battery, a battery module, a cabinet and a battery anti-theft method, which can realize effective anti-theft of an energy storage battery.
In a first aspect, an embodiment of the present application provides an anti-theft battery, including a battery case, and a pole core and a disconnecting element, which are disposed in the battery case, where the pole core is provided with a positive pole tab and a negative pole tab, the battery case is provided with a positive pole post and a negative pole post, the positive pole post is electrically connected to the positive pole tab, the negative pole post is electrically connected to the negative pole tab to form a conductive loop, the disconnecting element is disposed on the conductive loop, and the disconnecting element is configured to receive a trigger signal to cut off or short the conductive loop;
the trigger signal is generated by the pole core and transmitted to the disconnecting element when the anti-theft battery is displaced, or the trigger signal is generated by a BMS board used for controlling the anti-theft battery and transmitted to the disconnecting element when the anti-theft battery is displaced.
Through the inside at the theftproof battery sets up the disconnect-element, and make the disconnect-element be connected to in the conductive loop of theftproof battery, can be when the theftproof battery takes place the displacement because of stolen, the inside utmost point core of theftproof battery or the BMS board of control theftproof battery can produce and transmit triggering signal for the disconnect-element, make the disconnect-element when receiving triggering signal, triggered and cut off or short circuit conductive loop, make the theftproof battery can not supply power externally again, even make the thief of stealing the theftproof battery steal away the theftproof battery, because the theftproof battery can not export externally again, also can not normally use the theftproof battery for the load power supply, thereby make the theftproof battery lose the theft value, make the thief can not steal the theftproof battery again, realized the special theftproof protection to the theftproof battery. In addition, only increase the time and the degree of difficulty that the thief steals the theftproof battery compared with traditional mechanical structure theftproof, and can not fundamentally influence the use of stolen back thief to the battery, disconnection component is set up in the inside of theftproof battery to this application technical scheme, on the one hand be difficult to follow the outward appearance and effectively discern in the short time, the disguise of theftproof measure is high, on the other hand because disconnection component is in the inside disconnection or short circuit conducting loop of theftproof battery, thereby make theftproof battery self can no longer be used normally, can still can reduce the possibility that can continue to use after the theftproof battery is stolen to the minimum, the theftproof performance of theftproof battery has been strengthened greatly.
In one possible embodiment, the disconnecting element is electrically connected between the positive post and the positive tab, or the disconnecting element is electrically connected between the negative post and the negative tab.
Therefore, the disconnecting element can be arranged on any one of the positive electrode side and the negative electrode side according to requirements, the selection diversity and flexibility are strong, and the application range is wide. The disconnecting element can be kept in a closed state without being triggered when the disconnecting element does not receive the trigger signal, so that the conductive loop works normally to ensure the current in the conductive loop to circulate. And when receiving a trigger signal, the anti-theft battery can be triggered to be switched to a disconnected state, so that the positive pole and the negative pole are in short circuit, the conductive loop is in short circuit, and the anti-theft battery cannot output current to the outside to supply power for a load.
In a possible embodiment, the disconnecting element is a switch, the anti-theft battery further includes a first adaptor disposed in the casing, two ends of the first adaptor are electrically connected to the positive pole and the positive lug respectively, and the switch is located in the first adaptor to cut off the electrical connection between the positive pole and the positive lug when the switch is disconnected.
Therefore, two ends of the first adapter are electrically connected to the positive pole and the positive pole lug respectively, and the disconnecting element is located on the first adapter and used for cutting off the electrical connection of the positive pole and the positive pole lug when the disconnecting element is disconnected. Through setting up first adaptor, can provide sufficient installation space for the installation of disconnection component, be favorable to the reasonable overall arrangement of the inside device of theftproof battery.
In a possible implementation mode, the positive tab is located the pole piece is close to or deviates from one side of positive post, first adaptor is the flexibility, first adaptor one end with positive tab fixed connection, the other end of first adaptor with negative pole tab fixed connection.
It can be understood that first adaptor can provide sufficient area of contact for anodal ear and anodal post can with the effectual contact of first adaptor, thereby guarantee the stable flow of electric current between anodal ear and the anodal post, and then improve the overall stability and the reliability of the conductive loop of theftproof battery, the long-term safe use of theftproof battery of being convenient for. And because the first adapter can have flexibility, so can be in the limited inner space of anti-theft battery, through buckling and drawing in order to adapt to the internal spatial layout of anti-theft battery.
In a possible embodiment, the disconnecting element is electrically connected between the positive pole and the negative pole, so that when the triggering signal is not received, the disconnecting element can be kept in a disconnecting state without being triggered, and the conductive loop is enabled to work normally to ensure the current flowing in the conductive loop. And when receiving a trigger signal, the anti-theft battery can be triggered to be switched to a closed state, so that the positive pole and the negative pole are in short circuit, the conductive loop is in short circuit, and the anti-theft battery cannot output current to the outside to supply power for a load.
In a possible embodiment, the disconnecting element is a switch, the anti-theft battery further includes a connecting member disposed in the battery case, two ends of the connecting member are electrically connected to the positive pole and the negative pole, respectively, and the switch is located in the connecting member to short-circuit the conductive loop when the switch is closed.
It can be understood that the disconnecting element is arranged on the connecting piece and has two states of disconnection and connection, so that whether the positive pole column and the negative pole column need to be in short-circuit contact or not can be judged, the purpose of realizing a short-circuit conductive loop can be quickly responded when the positive pole column and the negative pole column need to be in short-circuit contact, the control mode is simple, and the installation and the maintenance are convenient and fast.
Specifically, when the disconnecting element is disconnected, the two ends of the connecting piece are not electrically connected with the positive pole and the negative pole, and the positive pole and the negative pole are further kept to normally work due to the fact that the positive pole and the negative pole are not directly electrically connected. And when the disconnecting element is closed, the two ends of the connecting piece are respectively electrically connected to the positive pole column and the negative pole column, so that the positive pole column and the negative pole column are in short circuit contact to enable the conductive loop to be in short circuit.
In a possible embodiment, the anti-theft battery further includes a fuse disposed in the battery case, the fuse is electrically connected between the positive post and the positive tab, or the fuse is electrically connected between the negative post and the negative tab, and the fuse is blown when the switch is closed.
It can be understood that when the disconnecting element is closed, a large short-circuit current is generated between the positive pole and the negative pole due to direct connection, the short-circuit current rapidly passes through the fuse, and the anti-theft battery cannot be normally used by fusing the fuse, so that the problem that the anti-theft battery is on fire due to short circuit and overcurrent protection without the fuse can be avoided, and the anti-theft battery cannot output current outwards, so that the anti-theft performance of the anti-theft battery is further improved.
In a second aspect, an embodiment of the present application provides a battery module, the battery module includes a module housing and a plurality of energy storage batteries connected in series and disposed in the module housing, at least one of the energy storage batteries is the above-mentioned anti-theft battery.
It can be understood that each energy storage battery can form a power supply path to supply power for an external load when the external load is applied, and a plurality of energy storage batteries in each battery module are in series connection, so that when the antitheft function is started on any one energy storage battery and the power supply path to the external load is cut off, the rest energy storage batteries in the whole battery module can stop supplying power to the outside, and the whole antitheft performance of the battery module is realized.
In one possible embodiment, the battery module further comprises a BMS board for controlling the plurality of energy storage batteries, the BMS board being provided in the module case and connected in series with the plurality of energy storage batteries,
the BMS board is provided with a control unit, and the control unit is used for judging whether the battery module meets the preset theft condition or not, and sending the trigger signal to a disconnection element of the anti-theft battery when determining that the battery module meets the preset theft condition. Adopt the control unit in order to judge the state of battery module and whether to send triggering signal according to the state determination of battery module, the real-time status of the definite battery module that can be quick, accurate has improved the theftproof performance of battery module.
In one possible implementation manner, the battery module further includes a gyroscope sensor electrically connected to the control unit, the gyroscope sensor is configured to detect an inclination angle or displacement of the battery module, and send inclination or displacement information of the battery module to the control unit when the battery module is inclined or displaced, and the control unit takes the received inclination or displacement information of the battery module as the preset theft condition.
The gyroscope sensor is used for detecting the inclination angle or the displacement of battery module to incline or displacement information with battery module when battery module takes place to incline or the displacement sends for the control unit, the control unit regards the inclination or the displacement information of received battery module as predetermineeing stolen condition, in order to satisfy when predetermineeing stolen condition and take place to incline or the displacement promptly at the definite battery module, can identify the theftproof battery and be stolen, and then send triggering signal to the disconnect-element of theftproof battery. Through setting up the gyroscope sensor, the motion gesture of definite battery module that can be quick, accurate to when the battery module takes place to incline or the displacement, can send trigger signal to the disconnect element through the control unit, and then make the disconnect element triggered and closed, with the conductive loop of short circuit theftproof battery, make the theftproof battery can not normal use.
In other words, the control unit is configured to: and when receiving the inclination or displacement information of the electronic equipment sent by the gyroscope sensor, sending a trigger signal to a disconnection element of the anti-theft battery.
In a third aspect, embodiments of the present application provide a cabinet that includes a battery compartment and the battery module as described above disposed in the battery compartment.
In a possible embodiment, the cabinet further comprises a set of electromagnetic devices;
the battery compartment comprises four side walls which are sequentially connected, the four side walls are two first side walls which are oppositely arranged along a first direction and two second side walls which are oppositely arranged along a second direction, and the first direction is vertical to the second direction;
the electromagnetic device group comprises two electromagnetic devices, the two electromagnetic devices are oppositely arranged on the two first side walls, or the two electromagnetic devices are oppositely arranged on the two second side walls, and the two electromagnetic devices are matched to form a magnetic field;
the battery module is installed in the battery cabin and is located in the range of the magnetic field.
It is understood that the number of the electromagnetic device groups and the number of the battery modules may be in a one-to-one relationship, a one-to-many relationship, or a many-to-many relationship.
For example, the number of the electromagnetic device groups may be one, the number of the battery modules may be four, and the magnetic field generated by one electromagnetic device group covers the installation area of the four battery modules, so that each battery module is within the range of the magnetic field. Or, the number of the electromagnetic device groups may be four, the number of the battery modules may be four, each electromagnetic device group corresponds to one battery module, and the magnetic field generated by each electromagnetic device group covers the corresponding battery module, so that the corresponding battery module is in the range of the magnetic field generated by the corresponding electromagnetic device group.
In a possible embodiment, each of the electromagnetic devices is an energizing coil, each of the energizing coils includes a first end and a second end disposed opposite to the first end, and two first ends of two oppositely disposed energizing coils have opposite polarities, and two second ends have opposite polarities.
From this, set up two electromagnetic means and make its relative setting, can form the magnetic field that covers battery module in the cooperation for the magnetic induction line in magnetic field can come out and get into another circular telegram spiral pipe from circular telegram spiral pipe, and then forms the closed loop of magnetic induction line.
In one possible embodiment, the pole core of the anti-theft battery is a cylindrical winding core formed by sequentially stacking a positive plate, a diaphragm and a negative plate and integrally winding, and the direction of the magnetic induction line of the magnetic field is perpendicular to the cross section of the cylindrical winding core.
Therefore, the magnetic flux passing through the cross section of the columnar winding core can be changed, so that the pole core correspondingly generates induced electromotive force, and an induced current signal is generated.
The size of the magnetic flux passing through the cross section of the columnar winding core can be vividly described by the number of the magnetic induction lines passing through the cross section of the columnar winding core. When the battery module is taken out of the cabinet by a thief and the pole core of the anti-theft battery performs magnetic induction line cutting motion in a magnetic field, the number of the magnetic induction lines on the cross section of the columnar winding core is changed, namely, the magnetic flux on the cross section of the columnar winding core is changed, and the change of the magnetic flux causes the corresponding induced electromotive force generated in the pole core, so that an induced current signal is generated.
In a possible implementation manner, the positive plate is electrically connected with the positive tab, the negative plate is electrically connected with the negative tab, when the columnar winding core performs a magnetic induction line cutting motion in the magnetic field, the magnetic flux of the cross section of the columnar winding core is changed so that the positive plate and the negative plate are matched to generate the induced current signal, and the induced current signal is transmitted to the disconnecting element through the positive tab or the negative tab, so that the disconnecting element is triggered to be disconnected, a conductive loop of the anti-theft battery is cut off, and the anti-theft battery cannot be normally used.
In a possible embodiment, the cabinet further comprises an equipment compartment disposed adjacent to the battery compartment, a dc busbar is disposed in the equipment compartment, a power output line of a BMS board of the battery module is connected to the dc busbar, and the power output line is further electrically connected to a control unit of the BMS board,
and when the control unit of the BMS board determines that the power output line is disconnected from the direct-current busbar, the trigger signal is sent to the disconnection element.
It can be understood that the direct-current busbar and the control unit are electrically connected through the power output line, so that the direct-current busbar can effectively, reasonably and as required distribute the direct current to the battery module, or the battery module can effectively, reasonably and as required distribute the stored direct current to the direct-current electric equipment through the direct-current busbar. And the direct input and output of direct current can be realized by the arrangement of the direct current busbar, so that the direct current power distribution unit does not need to be additionally provided with a switching power supply component, the cost is saved, and meanwhile, the fault problem caused by the arrangement of wiring and the switching power supply component is reduced.
Because the power output line is electrically connected between the control unit and the direct-current busbar, namely between the battery module and the direct-current busbar, no matter the direct-current busbar supplies power to the battery module or the battery module supplies power to the direct-current busbar, current always flows between the battery module and the direct-current busbar. Therefore, the control unit takes the disconnection of the power output line and the direct-current busbar as a preset stolen condition, and the anti-theft battery can be determined to be stolen when the battery module is determined to meet the preset stolen condition, namely the disconnection of the power output line and the direct-current busbar. The control unit can send a trigger signal to the disconnecting element to trigger the disconnecting element to be closed so as to short-circuit a conductive loop of the anti-theft battery and enable the anti-theft battery not to be normally used.
In other words, the control unit is configured to: and when the power output line is determined to be disconnected with the direct-current busbar, sending a trigger signal to the disconnecting element.
In a possible embodiment, the cabinet further comprises an equipment compartment disposed adjacent to the battery compartment, an upper computer management system is disposed in the equipment compartment, the communication line of the BMS board of the battery module is connected to the upper computer management system, and the communication line is further electrically connected to the control unit of the BMS board,
transmitting the trigger signal to the disconnection element when the control unit of the BMS board determines that the communication line is disconnected from the upper management system.
It can be understood that the control unit can transmit the real-time data of the battery module acquired by the control unit to the upper computer management system through the communication line, so that the upper computer management system can realize the functions of monitoring and dumping the data of the battery module, analyzing the performance of the battery module and the like. The upper computer management system can manage the battery module. By way of example, the communication line may be a CAN bus,
when the control unit is connected to the upper computer management system, effective communication exists between the control unit and the upper computer management system. Therefore, the control unit takes the disconnection of the communication line and the upper computer management system as a preset theft condition, so that the theft-proof battery can be determined to be stolen when the disconnection of the communication line and the upper computer management system is determined. The control unit can send a trigger signal to the disconnecting element to trigger the disconnecting element to be closed so as to short-circuit a conductive loop of the anti-theft battery and prevent the anti-theft battery from being normally used.
In other words, the control unit is configured to: when it is determined that the communication line is disconnected from the upper management system, a trigger signal is transmitted to the disconnection element.
In one possible embodiment, the BMS board of the battery module is provided with a sampling unit, the positive pole and the negative pole of the anti-theft battery are respectively connected with the sampling unit through a sampling line, the sampling unit is electrically connected with the control unit of the BMS board and is used for detecting the voltage between the positive pole and the negative pole of the anti-theft battery,
and when the control unit of the BMS board determines that the signal intensity of the induced current signal generated by the pole core does not meet the preset trigger threshold value of the disconnecting element and determines that the sampling circuit detects that the potential difference exists between the positive pole and the negative pole, the control unit sends the trigger signal to the disconnecting element.
In a specific application scenario, the signal strength of the induced current signal generated by the pole piece cutting the magnetic induction wire does not meet the preset trigger threshold of the disconnecting element, so that the disconnecting element cannot be triggered. And due to the arrangement of the sampling unit, the sampling unit can detect the voltage between the positive pole and the negative pole in real time. Under the normal condition of working of battery module, the potential difference between the positive post that the sampling unit detected and the negative pole post is 0, and when the battery module was stolen, the pole piece cut the magnetic line of force in the magnetic field and produced induced electromotive force, and the existence of induced electromotive force can make the positive post and the negative pole post of theftproof battery have the potential difference between, and the sampling unit can detect the potential difference between the positive post and the negative pole post of theftproof battery. And the control unit sends a trigger signal to the disconnecting element only when the control unit determines that the sampling unit detects that the potential difference exists between the positive pole and the negative pole of the anti-theft battery.
From this, the control unit does not trigger the disconnect-element with induced-current signal, and the sampling unit detects to have the potential difference between the anodal post of theftproof battery and the negative pole as predetermineeing stolen condition to satisfy predetermineeing stolen condition at the definite battery module and do not trigger the disconnect-element at induced-current signal promptly, and the sampling unit detects when having the potential difference between the anodal post of theftproof battery and the negative pole, can deem the theftproof battery and stolen. The control unit can send a trigger signal to the disconnecting element to trigger the disconnecting element to be disconnected so as to cut off the conductive loop of the anti-theft battery and prevent the anti-theft battery from being normally used.
In other words, the control unit is further adapted to: and judging whether the signal intensity of the induced current signal meets a preset trigger threshold value. And when the signal intensity of the induced current signal is determined not to meet the preset trigger threshold value of the disconnecting element and the sampling unit is determined to detect that the potential difference exists between the positive pole and the negative pole of the anti-theft battery, sending a trigger signal to the disconnecting element to disconnect the disconnecting element and cut off the conductive loop. On the contrary, if the signal intensity of the induced current signal meets the preset trigger threshold, the induced current signal directly triggers the disconnecting element, so that the disconnecting element is disconnected to cut off the conductive loop.
In a fourth aspect, an embodiment of the present application provides a battery anti-theft method applied in a cabinet, where the cabinet includes a battery module, the battery module includes an anti-theft battery, the anti-theft battery includes a battery housing and a disconnecting element disposed in the battery housing, the disconnecting element is connected to a conductive loop of the anti-theft battery, and the disconnecting element is configured to receive a trigger signal to cut off or short-circuit the conductive loop of the anti-theft battery, and the method includes:
judging whether the battery module meets a preset stolen condition or not;
and when the battery module is determined to meet the preset theft condition, sending a trigger signal to a disconnecting element of the anti-theft battery so that the disconnecting element receives the trigger signal to short circuit or cut off a conductive loop of the anti-theft battery.
In a possible embodiment, the battery module further comprises a buzzer electrically connected with the anti-theft battery, the battery shell is provided with a positive pole and a negative pole,
after the step of sending a trigger signal to a disconnecting element of the anti-theft battery when the battery module is determined to meet the preset theft condition, so that the disconnecting element receives the trigger signal to short circuit or cut off a conductive loop of the anti-theft battery, the method includes:
detecting a voltage between the positive post and the negative post when it is determined that the disconnect element is triggered by the trigger signal;
and when the fact that the voltage between the positive pole and the negative pole is zero is determined to be detected, triggering the buzzer.
In a possible implementation manner, the determining whether the battery module meets a preset theft condition includes:
detecting the voltage between the positive pole and the negative pole;
and judging whether the battery module meets a preset stolen condition or not according to the potential difference between the positive pole and the negative pole.
The technical scheme of this application sets up the disconnect-element through the inside at the theftproof battery, and make the disconnect-element be connected to the conductive loop of theftproof battery, can be when the theftproof battery takes place the displacement because of stolen, the inside utmost point core of theftproof battery or the BMS board of control theftproof battery can produce and transmit triggering signal for the disconnect-element, make the disconnect-element when receiving triggering signal, triggered and cut off or short circuit conductive loop, make the theftproof battery can not supply power externally again, thereby make the thief of stealing the theftproof battery even steal the theftproof battery away, because the theftproof battery can not export externally again, also can not normally use the theftproof battery for the load power supply, thereby make the theftproof battery lose the theft value, make the thief can not steal the theftproof battery again, realized the special theftproof protection to the theftproof battery. In addition, only increase the time and the degree of difficulty that the thief steals the theftproof battery compared with traditional mechanical structure theftproof, and can not fundamentally influence the use of stolen back thief to the battery, disconnection component is set up in the inside of theftproof battery to this application technical scheme, on the one hand be difficult to follow the outward appearance and effectively discern in the short time, the disguise of theftproof measure is high, on the other hand because disconnection component is in the inside disconnection or short circuit conducting loop of theftproof battery, thereby make theftproof battery self can no longer be used normally, can still can reduce the possibility that can continue to use after the theftproof battery is stolen to the minimum, the theftproof performance of theftproof battery has been strengthened greatly.
Drawings
Fig. 1 is a schematic structural diagram of a cabinet provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of a power distribution configuration of the cabinet shown in FIG. 1;
fig. 3 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an anti-theft battery provided in an embodiment of the present application;
fig. 5 is a schematic view of a structure of the anti-theft battery shown in fig. 4;
fig. 6 is a schematic structural view of a second embodiment of the anti-theft battery shown in fig. 4;
fig. 7 is a structural schematic view of a pole piece of the anti-theft battery shown in fig. 4;
fig. 8 is a schematic structural view illustrating the anti-theft battery shown in fig. 5 applied to a battery module;
fig. 9 is another structural view illustrating the anti-theft battery shown in fig. 5 applied to a battery module;
fig. 10 is a schematic view of another structure of the anti-theft battery shown in fig. 5 applied to a battery module;
FIG. 11 is a schematic diagram of the anti-theft battery of FIG. 5 in a cabinet;
FIG. 12 is a schematic view of another configuration of the anti-theft battery of FIG. 5 in use in a cabinet;
fig. 13 is another structural schematic diagram of the first embodiment of the anti-theft battery shown in fig. 4;
fig. 14 is a schematic view of still another construction of the first embodiment of the anti-theft battery shown in fig. 4;
fig. 15 is a schematic structural diagram of a cabinet provided in an embodiment of the present application;
fig. 16 is a schematic structural diagram of another cabinet provided in an embodiment of the present application;
FIG. 17 is a schematic illustration of an angle of a direction of magnetic induction lines of a magnetic field generated by the electromagnetic apparatus of the enclosure of FIG. 15;
FIG. 18 is a schematic illustration of another angle of the direction of the magnetic induction lines of the magnetic field generated by the electromagnetic apparatus of the enclosure shown in FIG. 16;
fig. 19 is another structural schematic diagram of the second embodiment of the anti-theft battery shown in fig. 4;
fig. 20 is a schematic view of still another construction of the second embodiment of the anti-theft battery shown in fig. 4;
fig. 21 is a schematic structural view of the anti-theft battery shown in fig. 6 applied to a battery module;
fig. 22 is a schematic view of another structure of the anti-theft battery shown in fig. 6 applied to a battery module;
fig. 23 is a schematic flowchart of a battery anti-theft method according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2 together, an embodiment of the present application provides a cabinet 300, where the cabinet 300 can be used as a functional cabinet, can provide a basic functional compartment, and can be flexibly combined according to the differentiation requirements of multiple scenarios, and has few scenario limitations and a wide application range. For example, the cabinet 300 may be, but is not limited to, a power storage cabinet, an outdoor power equipment cabinet, an outdoor communication cabinet, and an outdoor air conditioning cabinet.
It is understood that the cabinet 300 may be used to power and backup electrical consumers, wherein the electrical consumers may be ac electrical consumers and/or dc electrical consumers. Specifically, when ac power is connected to the cabinet 300, a part of the ac power is distributed by the ac power distribution unit 322 in the cabinet 300 to supply power to the ac power devices, and another part of the ac power is converted into dc power by the rectifier 321, and then the dc power devices are distributed by the dc power distribution unit 323 in the cabinet 300 to supply power to the dc power devices, and meanwhile, the battery module 200 in the cabinet 300 can be charged. Thereby after the alternating current outage, battery module 200 in rack 300 still can be directly supplied power to direct current consumer through the electric energy of deposit, perhaps, accessible inverter converts the direct current to the alternating current after and supplies power to alternating current consumer, thereby satisfies rack 300 for the dual performance of consumer power supply and stand-by power, the consumer can maintain normal work all the time, and protect consumer's software, hardware not damaged, provide reliable, stable power supply for consumer.
However, the battery module of the current cabinet has no reliable theft protection measure, so that the battery module of the cabinet is frequently lost, and the battery module can still continue to normally work after being stolen, so that effective theft prevention is difficult to realize, and the maintenance and use cost of the cabinet is increased.
Therefore, in the embodiment of the present application, the use performance that the battery module 200 installed in the cabinet 300 can satisfy the normal work after being stolen is exemplified to explain, so that the anti-theft performance of the battery module 200 can be effectively realized, and the overall safety performance of the battery module 200 is improved.
It should be noted that the illustrated structure of the embodiment of the present application does not specifically limit the cabinet 300. In other embodiments of the present application, cabinet 300 may include more or fewer components than illustrated in the embodiments of the present application, or some components may be combined, or some components may be split, or a different arrangement of components. The illustrated elements of the embodiments of the present application may be implemented in hardware, software, or a combination of software and hardware.
Referring again to fig. 1, the cabinet 300 includes a battery compartment 310 and an equipment compartment 320, the battery compartment 310 and the equipment compartment 320 can be separated into two independent areas by a partition, and the battery compartment 310 and the equipment compartment 320 can accommodate corresponding equipment therein to improve the safety performance of the corresponding equipment placed therein by a clear and well-defined partition. For example, the battery module 200 may be disposed in the battery compartment 310, and the wireless transmission device, the baseband processing device, etc. may be disposed in the equipment compartment 320. In addition, the battery compartment 310 and the equipment compartment 320 may be connected to each other via a cable to achieve the functions of power supply, communication, and the like. For example, the cable may be a bus bar.
In the embodiment of the present application, the battery module 200 is disposed in the battery compartment 310, and the battery module 200 can be used for storing electric energy and supplying energy to the dc power device after the ac power accessed by the cabinet 300 is cut off.
In one possible embodiment, the number of the battery modules 200 is multiple, and a plurality of the battery modules 200 are arranged in a sequence in the battery compartment 310, so that the installation can be conveniently and quickly performed. The battery modules 200 are connected in parallel to ensure that when any one of the battery modules 200 is damaged, stolen, overhauled, etc., the work of the rest of the battery modules 200 is not disturbed, so that the rest of the battery modules 200 can still continue to provide energy to the outside without being affected. From this, set up a plurality of battery module 200, can adapt to the user demand of many scenes, guarantee direct current consumer's stable work, adaptability and manageability are strong.
It should be noted that, the number of the electromagnetic modules may be selected according to actual design requirements such as the space size of the cabinet 300, the energy storage and supply requirements, and the number of the electromagnetic modules may be one, two, three, …, or multiple.
It is understood that the battery module 200 is a device for storing electric energy, and the current connected to and output from the battery module is direct current, while the current connected to the cabinet 300 is alternating current. Therefore, it is necessary to convert the ac power into the dc power to supply the dc power to the battery module 200.
Referring to fig. 1 and 2, in particular, a rectifier 321, an ac power distribution unit 322 and a dc power distribution unit 323 may be disposed in the equipment compartment 320. It is understood that the rectifier 321 is a device capable of converting ac power into dc power, the rectifier 321 is capable of converting a part of ac power received by the ac power distribution unit 322 from an external power grid into dc power, and the converted dc power is distributed by the dc power distribution unit 323 and supplied to the dc power devices and the battery module 200 in the cabinet 300 to supply power to the dc power devices and charge the battery module 200. And another part of the ac power accessed by the cabinet 300 can be distributed by the ac power distribution unit 322 to directly supply power to the ac electric devices.
Referring to fig. 3, each Battery module 200 includes a module housing 210, a plurality of energy storage batteries 220 and a BMS (Battery Management System) board 230, which are connected in series and are disposed in the module housing 210.
It should be noted that the BMS board 230 is disposed in the module housing 210 and is connected in series with the plurality of energy storage batteries 220, only four energy storage batteries 220 (one of which is the anti-theft battery 100 with the anti-theft function) are illustrated in fig. 3, but the number of the energy storage batteries 220 is not limited thereto, and the dotted line portion illustrated in fig. 3 only represents the electrical connection relationship between the BMS board 230 and the rest of the energy storage batteries 220 and the load that are not illustrated in fig. 3 but actually exist, and does not represent that the BMS board 230 is directly connected with the plurality of energy storage batteries 220 connected in series to cause a short circuit, and the load is electrically connected therebetween, so that the possibility of the short circuit does not exist in the entire electrical connection relationship.
It can be understood that the energy storage battery 220 may be a single battery cell in the battery module 200, which can realize the function of storing electric energy, that is, the energy storage battery 220 may be a minimum unit structure in the battery module 200, which can realize the function of storing energy. The BMS board 230 may be used to monitor and protect the plurality of energy storage cells 220, to enable detection of the real-time status of each energy storage cell 220, and to equalize between the individual energy storage cells 220. That is, the BMS board 230 may be used to control the plurality of energy storage batteries 220 to implement a function predetermined by the plurality of energy storage batteries 220. In other words, the BMS board 230 may be used to control each energy storage battery 220. The module housing 210 can prevent mechanical damage to the energy storage battery 220 caused by motion vibration, collision and the like, and can also prevent chemical corrosion to the energy storage battery 220 caused by corrosive gas and liquid outside the module housing 210, thereby achieving a good protection effect.
Therefore, the battery module 200 may be a module type power source formed by packaging a plurality of energy storage batteries 220 having a function of storing electric energy in a series connection manner and additionally installing a BMS board 230 for monitoring and managing. The structure forming the battery module 200 can support, fix and protect the plurality of energy storage batteries 220, and is excellent in mechanical strength, electrical performance, thermal performance and fault handling capability.
It can be understood that each energy storage battery 220 can form a power supply path to supply power to an external load when the external load is connected, and the plurality of energy storage batteries 220 in each battery module 200 are connected in series, so that when any one energy storage battery 220 starts the anti-theft function and cuts off the power supply path to the external load, the rest energy storage batteries 220 in the whole battery module 200 can stop supplying power to the outside, and the overall anti-theft performance of the battery module 200 is realized.
Therefore, at least one energy storage battery 220 is required to be ensured in each battery module 200 as the anti-theft battery 100 with the anti-theft function, so that when the battery module 200 is wholly stolen, the anti-theft function of the anti-theft battery 100 is started, and the whole battery module 200 can be effectively prevented from being stolen.
For example, as shown in fig. 3, only one of the energy storage batteries 220 may be the anti-theft battery 100 with the anti-theft function, or two, three, or all of the energy storage batteries 220 may be the anti-theft batteries 100 with the anti-theft function. As for the number of the anti-theft batteries 100 in each battery module 200, it is only necessary to satisfy the requirement that the entire battery module 200 has the anti-theft performance, and the application does not limit this.
It is understood that, in the following description, one energy storage battery 220 in the battery module 200 is further described as the anti-theft battery 100, and the descriptions can be applied to the remaining energy storage batteries 220 in the battery module 200 without conflict. In addition, since the BMS board 230 may be configured to control each energy storage battery 220, when the energy storage battery 220 is the anti-theft battery 100 with an anti-theft function, the BMS board 230 is also configured to control the anti-theft battery 100.
Referring to fig. 4, 5 and 6 together, the anti-theft battery 100 includes a battery case 10, a pole piece 20 and a disconnecting element 30, the pole piece 20 is disposed in the battery case 10, the pole piece 20 is provided with a positive pole tab 21 and a negative pole tab 22, the battery case 10 is provided with a positive pole post 11 and a negative pole post 12, the positive pole post 11 is electrically connected to the positive pole tab 21, the negative pole post 12 is electrically connected to the negative pole tab 22 to form a conductive loop, the disconnecting element 30 is disposed on the conductive loop, and the disconnecting element 30 is configured to receive a trigger signal to cut off or short the conductive loop; the pole core 20 is generated and transmitted to the disconnection element 30 when the anti-theft battery 100 is displaced, or the BMS board 230 for controlling the anti-theft battery 100 is generated and transmitted to the disconnection element 30 when the anti-theft battery 100 is displaced.
It can be understood that, when the anti-theft battery 100 is stolen by a thief, the anti-theft battery 100 may move or tilt relative to an original position, that is, the anti-theft battery 100 may be displaced when the anti-theft battery 100 is stolen, and thus, when the anti-theft battery 100 is displaced, the pole piece 20 or the BMS board 230 controlling the anti-theft battery 100 generates a trigger signal and transmits the trigger signal to the disconnection element 30, so that the disconnection element 30 receives the trigger signal and is triggered, and then the conductive loop is cut off or short-circuited, so that the anti-theft battery 100 cannot provide energy to the outside, thereby implementing anti-theft protection for the anti-theft battery 100.
Specifically, the battery module 200 is stable in the cabinet 300 and does not move when the battery module 200 normally works, and when the battery module 200 is stolen, the battery module 200 needs to be taken out of the cabinet 300, and the battery module 200 moves to drive the anti-theft battery 100 in the battery module 200 to move together, so that the anti-theft battery 100 moves, and the pole core 30 or the BMS board 230 generates a trigger signal to trigger the disconnection element 30 in the anti-theft battery 100 to perform a corresponding switching operation.
In the embodiment of the present application, the battery case 10 includes a top cover 13 and a casing 14, a housing cavity (not shown) is disposed in the casing 14, an opening communicating with the housing cavity is disposed at an end of the casing 14, and the top cover 13 is connected to an end of the casing 14 having the opening to seal the housing cavity. The pole core 20, the positive pole tab 21, the negative pole tab 22 and the disconnecting element 30 are all accommodated in the accommodating cavity, so that the shell 14 can be protected from the external environment, and the long-term safe use of the anti-theft battery 100 is facilitated.
Referring to fig. 7, the pole piece 20, which may be used to store electrical energy, is composed of a positive pole piece 23, a separator 24, and a negative pole piece 25. In one possible embodiment, the pole core 20 is a cylindrical winding core formed by sequentially stacking and integrally winding the positive plate 23, the separator 24 and the negative plate 25, and the separator 24 can effectively separate the positive plate 23 and the negative plate 25 to avoid contact short circuit caused by interference, so that the positive plate 23 and the negative plate 25 can both keep a normal current flowing state, and the safety performance of the anti-theft battery 100 is improved.
One end of the positive tab 21 is connected to the positive plate 23, the other end of the positive tab 21 extends out of the positive plate 23, one end of the negative tab 22 is connected to the negative plate 25, and the other end of the negative tab 22 extends out of the negative plate 25, so that when the positive tab 23, the diaphragm 24 and the negative plate 25 are wound, the positive tab 23, the diaphragm 24 and the negative plate 25 are wound together, and finally, the shape wound by the columnar winding core is presented.
It should be noted that although the pole core 20 is in a state in which it is not wound in fig. 7 for convenience of illustration, the pole core 20 may actually be a cylindrical winding core formed by stacking the positive electrode sheet 23, the separator 24, and the negative electrode sheet 25 in this order and winding them as a whole, and the wound state is finally assumed, and the state in which the pole core 20 illustrated in fig. 7 is not wound constitutes a specific limitation on the structure of the pole core 20.
Referring to fig. 4, 5, 6 and 7, in particular, one end of the positive tab 21 is located in the core 20 and connected to the positive tab 23, and the other end extends out of the core 20, and one end of the negative tab 22 is located in the core 20 and connected to the negative tab 25, and the other end also extends out of the core 20. The portions of positive tab 21 and negative tab 22 that extend beyond pole piece 20 can be electrically connected to positive post 11 and negative post 12, respectively, to draw current from pole piece 20 or to provide current to pole piece 20. In other words, positive electrode tab 21 and negative electrode tab 22 are contact points when pole piece 20 is charged and discharged.
And positive post 11 and negative post 12 are located at opposite ends of cap 13 on a side facing away from housing 14. One end of the positive pole 11 and one end of the negative pole 12 are electrically connected to the positive pole tab 21 or the negative pole tab 22 of the pole core 20, respectively, and the other end of the positive pole 11 and the other end of the negative pole 12 are electrically connected to one pole of the adjacent energy storage battery 220, so as to form a series-parallel connection relationship between the anti-theft battery 100 and the rest of the energy storage batteries 220 in the battery module 200, and/or can be electrically connected to a load to form a conductive loop.
It is understood that, on the basis of having a plurality of energy storage batteries 220 in the battery module 200, in order to implement the connection relationship of the plurality of energy storage batteries 220 (including the anti-theft battery 100) in series or in parallel, the positive pole 11 and the negative pole 12 of the anti-theft battery 100 may be further connected to one pole of the adjacent energy storage battery 220. For example, the positive post 11 of the anti-theft battery 100 may be connected to the negative post of the adjacent energy storage battery 220, and the negative post 12 of the anti-theft battery 100 may be connected to the positive post of the adjacent energy storage battery 220, so that the anti-theft battery 100 and the adjacent energy storage battery 220 can be connected in series.
The positive pole 11 can be used as a positive terminal of the anti-theft battery 100, is electrically connected with the positive lug 21 inside the battery shell 10, and is electrically connected with an external load outside the battery shell 10; the negative electrode post 12 can be used as a negative electrode terminal of the anti-theft battery 100, and is electrically connected to the negative electrode tab 22 inside the battery case 10, and is electrically connected to an external load outside the battery case 10, so that when the external load is electrically connected between the positive electrode post 11 and the negative electrode post 12, a conductive loop can be formed. The disconnection element 30, as an electronic element, can be triggered when receiving a trigger signal, so as to cut off the conductive loop, or short-circuit the conductive loop, so that the anti-theft battery 100 cannot supply power to the outside, thereby effectively achieving the anti-theft performance of the anti-theft battery 100.
For the anti-theft battery 100, because the polarities of the positive post 11 and the negative post 12 are opposite, if the positive post 11 and the negative post 12 are directly connected, the anti-theft battery 100 is short-circuited, and therefore, the conductive loop is a current loop formed when the positive post 11 and the negative post 12 are externally connected with a load. For example, a load is electrically connected to the positive post 11 and the negative post 12, and the conductive loop may be a power supply loop of the anti-theft battery 100 to the load. Based on this, the disconnecting element 30 may cut off or short-circuit the conductive loop when receiving the trigger signal, so that the anti-theft battery 100 cannot supply power to the load, thereby implementing the anti-theft function of the anti-theft battery 100.
By thus providing the disconnection element 30 inside the anti-theft battery 100 and connecting the disconnection element 30 to the conductive loop of the anti-theft battery 100, when the anti-theft battery 100 is displaced due to theft, the pole core 30 inside the anti-theft battery 100 or the BMS board 230 controlling the anti-theft battery 100 may generate and transmit a trigger signal to the disconnection element 30, when receiving the trigger signal, the disconnecting element 30 is triggered to cut off or short the conductive loop, so that the anti-theft battery 100 can no longer supply power to the outside, so that even if the thief who steals the anti-theft battery 100, since the anti-theft battery 100 can not output to the outside any more and the anti-theft battery 100 can not be used normally to supply power to the load, therefore, the theft-proof battery 100 loses the theft value, so that a thief can not steal the theft-proof battery 100 any more, and the special theft-proof protection of the theft-proof battery 100 is realized. In addition, compared with the conventional mechanical structure, the anti-theft function only increases the time and difficulty for a thief to steal the anti-theft battery 100, and does not fundamentally influence the use of the battery by the thief after the theft. According to the technical scheme, the disconnecting element 30 is additionally arranged in the anti-theft battery 100, so that on one hand, effective identification is difficult to perform in a short time from the appearance, and the concealment of anti-theft measures is high; on the other hand, the disconnection element 30 is used for disconnecting or short-circuiting the conductive loop inside the anti-theft battery 100, so that the anti-theft battery 100 cannot be used normally, the possibility that the anti-theft battery 100 can be used continuously after being stolen can be reduced to the minimum, and the anti-theft performance of the anti-theft battery 100 is greatly enhanced.
In a possible embodiment, the opening element 30 is a switch having two states, closed and open. Specifically, the switch can close the circuit when closed, allowing current to flow, or the switch can open when open, not allowing current to flow. Since the opening element 30 also has a function of cutting off or short-circuiting the conductive loop when receiving the trigger signal, the opening element 30 has a dual function of opening and closing the conductive loop and cutting off or short-circuiting the conductive loop.
Thus, the opening element 30 of the present application can be closed to short-circuit the conductive circuit upon receiving the trigger signal, or can be opened to cut off the conductive circuit upon receiving the trigger signal. In addition, the opening element 30 can be closed to short the conductive loop when receiving the trigger signal and triggered, or can be opened to cut off the conductive loop when receiving the trigger signal and triggered. Therefore, the transmission subject and the transmission condition of the trigger signal are important. Specifically, the trigger signal may be an induced current signal generated inside the pole core 20, or the trigger signal may be an external signal issued by the BMS board 230. Therefore, the disconnection element 30 can cut off or short the conductive loop correspondingly through different transmission bodies, and the anti-theft battery 100 can not be used normally, so that the selection flexibility is strong, and the application range is wide.
In the first embodiment of the present application, the trigger signal is an external signal sent by the BMS board 230, and the opening element 30 can close when receiving the trigger signal to take as an example a short circuit conductive loop for explanation.
Referring to fig. 3, 5 and 8, the BMS board 230 is disposed in the module housing 210 and is connected in series to the plurality of energy storage batteries 220 (including the anti-theft battery 100), so that when it is determined that the battery module 200 is stolen, a trigger signal is transmitted to the disconnecting element 30 of the anti-theft battery 100, and the disconnecting element 30 of the anti-theft battery 100 receives the trigger signal and is triggered to be closed, such that the anti-theft battery 100 cannot be normally used. Due to the series connection, when the anti-theft battery 100 cannot be used normally, the rest of the energy storage batteries 220 in the battery module 200 cannot be used, so that the battery module 200 loses the theft value, and the purpose of enabling the whole battery module 200 to have the anti-theft performance is achieved.
Specifically, the BMS board 230 is provided with a control unit 231, the control unit 231 is electrically connected to the anti-theft battery 100, and the control unit 231 is configured to determine whether the battery module 200 satisfies a preset theft condition, and transmit a trigger signal to the disconnection element 30 of the anti-theft battery 100 when it is determined that the battery module 200 satisfies the preset theft condition. The control unit 231 is adopted to judge the state of the battery module 200 and determine whether to send the trigger signal according to the state of the battery module 200, so that the real-time state of the battery module 200 can be determined quickly and accurately, and the anti-theft performance of the battery module 200 is improved.
Referring to fig. 3 and 9 together, in one possible embodiment, the BMS board 230 is further provided with a buzzer 232, the buzzer 232 is electrically connected to the control unit 231, and the control unit 231 is further configured to trigger the buzzer 232 to alarm when it is determined that the disconnection element 30 is short-circuited in the conductive loop. Therefore, the alarm sound of the buzzer 232 can enable the worker to quickly notice the stolen condition of the battery module 200, so that the worker can timely recover the loss or timely replace the loss.
It should be noted that the signal strength of the trigger signal issued by the BMS board 230 meets the preset trigger threshold of the disconnecting element 30, so that the disconnecting element 30 can be triggered to be closed when receiving the trigger signal, and the conductive loop is short-circuited.
Referring to fig. 10, in one possible embodiment, the battery module 200 further includes a gyro sensor 233, the gyro sensor 233 is disposed on the BMS board 230, and the gyro sensor 233 is electrically connected to the control unit 231.
The gyro sensor 233 is configured to detect an inclination angle or displacement of the battery module 200, and transmit inclination or displacement information of the battery module 200 to the control unit 231 when the battery module 200 is inclined or displaced, and the control unit 231 uses the received inclination or displacement information of the battery module 200 as a preset theft condition, so that when it is determined that the battery module 200 satisfies the preset theft condition, that is, when the inclination or displacement occurs, it is determined that the anti-theft battery 100 is stolen, and then a trigger signal is transmitted to the disconnect element 30 of the anti-theft battery 100.
By arranging the gyro sensor 233, the movement posture of the battery module 200 can be determined quickly and accurately, so that when the battery module 200 is inclined or displaced, a trigger signal can be sent to the disconnecting element 30 through the control unit 231, and then the disconnecting element 30 is triggered to be closed, so that the conductive loop of the anti-theft battery 100 is short-circuited, and the anti-theft battery 100 cannot be normally used.
In other words, the control unit 231 is configured to: when receiving the inclination or displacement information of the electronic device transmitted from the gyro sensor 233, a trigger signal is transmitted to the disconnect element 30 of the antitheft battery 100.
It can be understood that the battery module 200 is kept stable in the cabinet 300 without displacement during normal operation, and when the battery module 200 is stolen, the battery module 200 needs to be taken out of the cabinet 300, and the battery module 200 moves to drive the anti-theft battery 100 in the battery module 200 to move together, so that the anti-theft battery 100 is displaced. Whereas the position of the battery module 200 is changed when it is stolen with respect to the position when it is not stolen, so that the movement posture of the battery module 200 is changed, and the gyro sensor 233 may be used to determine the movement posture of the battery module 200 for the theft prevention of the battery module 200. For example, the movement posture of the battery module 200 may be changed such that the battery module 200 is tilted at a certain angle.
Referring to fig. 1, 2 and 11 together, in another possible embodiment, a dc bus bar 324 is disposed in the equipment compartment 320, the BMS board 230 is provided with a power output line 235 electrically connected to the control unit 231, and the power output line 235 of the BMS board 230 is further electrically connected to the dc bus bar 324, that is, the control unit 231 and the dc bus bar 324 are electrically connected through the power output line 235.
It can be understood that the dc power distribution unit 323 includes a dc bus bar 324, and the dc bus bar 324 is electrically connected to the control unit 231 through a power output line 235, so that the dc bus bar 324 can distribute the dc power to the battery module 200 effectively, reasonably and as needed, or so that the battery module 200 can distribute the stored dc power to the dc power devices effectively, reasonably and as needed through the dc bus bar 324. In addition, the direct input and output of direct current can be realized by the arrangement of the direct current busbar 324, so that the direct current power distribution unit 323 does not need to be additionally provided with a switching power supply component, the cost is saved, and meanwhile, the problem of faults caused by the arrangement of wiring and the switching power supply component is reduced.
Since the power output line 235 is electrically connected between the control unit 231 and the dc bus bar 324, that is, between the battery module 200 and the dc bus bar 324, no matter the dc bus bar 324 supplies power to the battery module 200 or the battery module 200 supplies power to the dc bus bar 324, current always flows between the battery module 200 and the dc bus bar 324. That is, the battery module 200 is kept stable in the cabinet 300 without displacement when the battery module 200 normally operates, and at this time, current always flows between the battery module 200 and the dc bus 324. When the battery module 200 is stolen, the battery module 200 needs to be taken out from the cabinet 300, and the battery module 200 moves to drive the anti-theft battery 100 in the battery module 200 to move together, so that the anti-theft battery 100 is displaced, and at this time, no current flows between the battery module 200 and the dc bus 324. Therefore, the control unit 231 disconnects the power output line 235 from the dc bus 324 as a predetermined theft condition, so that when it is determined that the battery module 200 satisfies the predetermined theft condition, that is, the power output line 235 is disconnected from the dc bus 324, it can be determined that the anti-theft battery 100 is stolen. Then, the control unit 231 may send a trigger signal to the opening element 30, so that the opening element 30 is triggered to close, so as to short-circuit the conductive loop of the anti-theft battery 100, and prevent the anti-theft battery 100 from being used normally.
In other words, the control unit 231 is configured to: when it is determined that power output line 235 is disconnected from dc bus bar 324, a trigger signal is sent to disconnect element 30.
Referring to fig. 1 and 12 together, in yet another possible embodiment, a supervisory computer management system 326 is disposed in the equipment bay 320, the BMS board 230 is provided with a communication line 236 electrically connected to the control unit 231, and the communication line 236 of the BMS board 230 is further electrically connected to the supervisory computer management system 326, i.e., the control unit 231 and the supervisory computer management system 326 are electrically connected through the communication line 236.
It can be understood that the control unit 231 may transmit the real-time data of the battery module 200 acquired by the control unit 231 to the upper computer management system 326 through the communication line 236, so that the upper computer management system 326 may implement functions of monitoring data of the battery module 200, data dumping, performance analysis of the battery module 200, and the like. That is, the upper computer management system 326 can manage the battery module 200. By way of example, the communication line 236 may be a CAN bus,
when the control unit 231 is connected to the upper management system 326, it indicates that there is effective communication between the control unit 231 and the upper management system 326. That is, the battery module 200 is stable and does not shift in the cabinet 300 when the battery module 200 normally operates, and at this time, there is effective communication between the battery module 200 and the upper management system 326. When the battery module 200 is stolen, the battery module 200 needs to be taken out of the cabinet 300, and the battery module 200 moves to drive the anti-theft battery 100 in the battery module 200 to move together, so that the anti-theft battery 100 is displaced, and at this time, the battery module 200 and the upper computer management system 326 do not communicate with each other any more. Thus, the control unit 231 determines that the theft prevention battery 100 is stolen by setting the disconnection of the communication line 236 from the upper computer management system 326 as a preset theft condition, and when the disconnection of the communication line 236 from the upper computer management system 326 is determined. Then, the control unit 231 may send a trigger signal to the opening element 30, so that the opening element 30 is triggered to close, so as to short-circuit the conductive loop of the anti-theft battery 100, and make the anti-theft battery 100 unable to be used normally.
In other words, the control unit 231 is configured to: when it is determined that the communication line 236 is disconnected from the supervisory computer management system 326, a trigger signal is sent to the disconnect element 30.
It should be noted that, in order to prevent the theft prevention function of the theft prevention battery 100 from being turned on due to the inspection, maintenance or installation of the battery module 200 by the worker, the battery module 200 cannot be used any more. When the staff inspects, maintains or installs the battery module 200, the maintenance signal can be sent to the control unit 231 through the upper computer management system 326, and then the battery module 200 is inspected, maintained or installed. Since the control unit 231 receives the maintenance signal, it will not control the opening element 30 to close any more, so that the opening element 30 is still in the open state, and the short circuit of the conductive loop will not be caused, thereby effectively avoiding the problem that the battery module 200 can not be used any more due to inspection, maintenance or installation. Based on this, the control unit 231 can recognize normal repair, maintenance, or installation operations, avoiding causing erroneous operations.
In other words, the control unit 231 is further configured to determine whether a maintenance signal sent by the upper computer management system 326 is received, and send a trigger signal to the disconnecting element 30 if it is determined that the maintenance signal sent by the upper computer management system 326 is not received.
Therefore, the trigger signal sent by the BMS board 230 to the disconnection element 30 can adapt to diversified scene requirements, so that the anti-theft requirements of the anti-theft battery 100 can be met in different scenes, and the anti-theft performance of the anti-theft battery 100 can be further improved.
Referring to fig. 5 again, in the first embodiment of the present application, the disconnecting element 30 is electrically connected between the positive pole 11 and the negative pole 12, so that when the triggering signal is not received, the disconnecting element is not triggered and maintains a disconnected state, so that the conductive loop normally operates to ensure the current flowing in the conductive loop. And when receiving a trigger signal, the anti-theft battery 100 can be triggered to be switched to a closed state, so that the positive pole 11 and the negative pole 12 are in short circuit, and a conductive loop is in short circuit, so that the anti-theft battery 100 cannot output current to the outside to supply power to a load.
Referring to fig. 13, in a possible embodiment, since the positive post 11 and the negative post 12 have a certain distance therebetween, the disconnecting member 30 is disposed in a space inside the battery case 10, and it is also ensured that the disconnecting member 30 can be electrically connected between the positive post 11 and the negative post 12. The anti-theft battery 100 further includes a connector 50 provided in the battery case 10, both ends of the connector 50 are electrically connected to the positive and negative poles 11 and 12, respectively, and the opening member 30 is located at the connector 50 to short-circuit the conductive loop when the opening member 30 is closed.
It should be noted that the form of the connecting member 50 and the disconnecting member 30 in fig. 13 is only illustrated for convenience, and the form of the connecting member 50 and the disconnecting member 30 in fig. 13 does not limit the structure of the connecting member 50 and the disconnecting member 30.
It can be understood that the disconnecting element 30 is arranged on the connecting piece 50, and the disconnecting element 30 has two states of opening and closing, so that whether the positive pole post 11 and the negative pole post 12 need to be in short-circuit contact or not can be judged, and when the positive pole post 11 and the negative pole post 12 need to be in short-circuit contact, the short-circuit conducting circuit can be quickly responded to, and the purposes of short-circuit conducting circuit are achieved, the control mode is simple, and the installation and maintenance are convenient.
Specifically, when the disconnecting element 30 is disconnected, the two ends of the connector 50 are not electrically connected to the positive and negative posts 11 and 12, and thus the positive and negative posts 11 and 12 are not directly electrically connected to each other, so that the normal operation of the conductive circuit is maintained. And when the disconnect element 30 is closed, both ends of the connector 50 are electrically connected to the positive and negative posts 11 and 12, respectively, so that the positive and negative posts 11 and 12 are brought into short-circuit contact to short-circuit the conductive circuit.
Referring to fig. 5 and 14, in a possible embodiment, the anti-theft battery 100 further includes a fuse 40 disposed in the battery case 10, and the fuse 40 is electrically connected between the positive post 11 and the positive tab 21, or the fuse 40 is electrically connected between the negative post 12 and the negative tab 22, so that the fuse 40 can be disposed on either one of the positive side and the negative side according to requirements, and the anti-theft battery has a wide variety of options and flexibility, and can be widely applied. The fuse 40 is intended to blow when the opening element 30 is closed.
It can be understood that when the disconnecting element 30 is closed, a large short-circuit current is generated between the positive pole post 11 and the negative pole post 12 due to direct connection, the short-circuit current rapidly passes through the fuse 40, and the anti-theft battery 100 cannot be normally used by fusing the fuse 40, so that on one hand, the problem that the anti-theft battery 100 is ignited due to short-circuit and overcurrent protection without the fuse 40 can be avoided, and on the other hand, the anti-theft battery 100 cannot output current to the outside any more, thereby further improving the anti-theft performance of the anti-theft battery 100.
In the second embodiment of the present application, different from the first embodiment described above, the trigger signal may be an induced current signal generated inside the pole core 20, and the disconnecting element 30 can be disconnected when receiving the trigger signal to cut off the conductive loop.
It can be understood that the induced current signal is a current signal generated in an Electromagnetic induction (Electromagnetic induction) phenomenon, and therefore, a device capable of providing a stable magnetic field needs to be disposed in the cabinet 300 so as to be capable of generating a current using the magnetic field.
Therefore, referring to fig. 15, the cabinet 300 further includes an electromagnetic device set 330, the electromagnetic device set 330 is installed in the battery compartment 310, and the electromagnetic device set 330 generates a magnetic field covering the battery module 200 after being powered on. Specifically, the ac power distribution unit 322 in the equipment compartment 320 includes an ac busbar (not shown), and the electromagnetic device group 330 can be powered by the ac busbar to generate a magnetic field after being powered on.
The electromagnetic device set 330 includes two electromagnetic devices 331, and the two electromagnetic devices 331 cooperate to form a magnetic field, so that the battery module 200 is located within the range of the magnetic field. Since the magnetic field may generate an acting force on the anti-theft battery 100 in the battery module 200, in order to avoid the electromagnetic shielding phenomenon, in one possible embodiment, the module case 210 and the battery housing 10 are made of plastic materials.
It should be noted that the number of the electromagnetic device groups 330 can be set according to actual requirements, and only the requirement that the magnetic field provided by the electromagnetic device groups 330 can cover the installation area of the battery module 200 is met, so that the battery module 200 is within the range of the magnetic field. In other words, the number of electromagnetic units 330 and the number of battery modules 200 may be in a one-to-one relationship, a one-to-many relationship, or a many-to-many relationship.
For example, as shown in fig. 15, the number of the electromagnetic device groups 330 may be one, the number of the battery modules 200 may be four, and the magnetic field generated by one electromagnetic device group 330 covers the installation areas of the four battery modules 200, so that each battery module 200 is within the range of the magnetic field. Alternatively, the number of the electromagnetic device groups 330 may be four, the number of the battery modules 200 may be four, each electromagnetic device group 330 corresponds to one battery module 200, and the magnetic field generated by each electromagnetic device group 330 covers the corresponding battery module 200, so that the corresponding battery module 200 is within the range of the magnetic field generated by the corresponding electromagnetic device group 330.
In the following description, it is assumed that the magnetic field generated by one electromagnetic device set 330 covers four battery modules 200, and the descriptions can be applied to different numbers of electromagnetic device sets 330 and battery modules 200 in combination without conflict, wherein the size specification of the electromagnetic device set 330 can be selected according to actual situations.
Specifically, the battery compartment 310 includes four sidewalls connected in sequence, the four sidewalls being two first sidewalls 311 disposed opposite to each other in a first direction and two second sidewalls 312 disposed opposite to each other in a second direction, respectively, the first direction and the second direction being perpendicular to each other. As shown in fig. 15, the first direction is denoted by X and the second direction is denoted by Z.
As shown in fig. 15, in one possible embodiment, two electromagnetic devices 331 are oppositely disposed on two first side walls 311, the two electromagnetic devices 331 cooperate to form a magnetic field, and the four battery modules 200 are sequentially arranged along the second direction and are installed in the battery compartment 310 and located within the range of the magnetic field. That is, the four battery modules 200 are all disposed in the middle of the battery compartment 310, and the two electromagnetic devices 331 are respectively disposed on opposite sides of the four battery modules 200, so that the installation regions of the four battery modules 200 can be within the range of the magnetic field formed by the two electromagnetic devices 331.
Therefore, the two electromagnetic devices 331 are oppositely arranged on the two first side walls 311, that is, the two electromagnetic devices 331 are arranged along the first direction, so that the size space in the battery compartment 310 along the first direction can be effectively utilized, the size in the battery compartment 310 along the second direction is liberated, a stable magnetic field is provided, meanwhile, the space in the battery compartment 310 along the second direction is not occupied, and the development trend of the cabinet 300 can be adapted.
As shown in fig. 16, in another possible embodiment, two electromagnetic devices 331 are oppositely disposed on two second sidewalls 312, the two electromagnetic devices 331 cooperate to form a magnetic field, and four battery modules 200 are sequentially arranged along the second direction and mounted in the battery compartment 310 within the range of the magnetic field.
Referring again to fig. 15, in the second embodiment of the present application, each electromagnetic device 331 is a power-on coil, and each power-on coil includes a first end 332 and a second end 333 opposite to the first end 332. Since the energizing solenoids can be analogized to a bar magnet, the first end 332 and the second end 333 of each energizing solenoid are opposite in polarity.
It will be appreciated that in the electromagnetic assembly 330, i.e., the two oppositely disposed energized solenoids, the two first ends 332 have opposite polarities and the two second ends 333 have opposite polarities. The two electromagnetic devices 331 are arranged oppositely, so that magnetic induction lines of the magnetic field can come out of one electrifying spiral pipe and enter the other electrifying spiral pipe while the magnetic field covering the battery module 200 is formed in a matching manner, and a closed loop of the magnetic induction lines is formed.
For example, as shown in fig. 15, if the first end 332 of the current-carrying spiral tube located on the left side of the battery module 200 is the N-pole, the first end 332 of the current-carrying spiral tube located on the right side of the battery module 200 is the S-pole. Since the magnetic induction lines go out from the N pole and enter the S pole, the magnetic induction lines go out from the first end 332 of the left side energization spiral tube and enter the first end 332 of the right side energization spiral tube, so that the battery module 200 positioned between the two energization spiral tubes is covered by the magnetic field.
It should be noted that, if there are a plurality of electromagnetic device groups 330, the polarities of the first ends 332 of the energizing solenoids located on the same side are the same, and the polarities of the second ends 333 of the energizing solenoids located on the same side are also the same.
When the magnetic field generated by the electromagnetic device set 330 stably covers the battery module 200, the battery module 200 can be kept stable in the magnetic field during normal operation, and when the battery module 200 is stolen, the battery module 200 needs to be taken out of the cabinet 300, the battery module 200 moves to drive the anti-theft battery 100 in the battery module 200 to move together, so that the pole core 20 of the anti-theft battery 100 cuts the magnetic induction line to work, and an induction current signal is generated to trigger the disconnecting element 30 in the anti-theft battery 100 to perform a corresponding switching action.
Referring to fig. 7, 17 and 18, specifically, the pole core 20 is a cylindrical winding core formed by stacking the positive electrode sheet 23, the separator 24 and the negative electrode sheet 25 in sequence and winding the whole, the cross section of the cylindrical winding core can clearly show the winding state of the positive electrode sheet 23, the separator 24 and the negative electrode sheet 25, and the cross section of the cylindrical winding core is perpendicular to the direction of the magnetic induction line of the magnetic field. Therefore, the magnetic flux passing through the cross section of the columnar winding core can be changed, so that the pole core 20 correspondingly generates induced electromotive force, and an induced current signal is generated.
Since the direction of the magnetic induction line of the magnetic field is perpendicular to the cross section of the cylindrical winding core, the direction of the magnetic induction line and the positional relationship of the anti-theft battery 100 can be referred to as shown in fig. 17 and 18, but fig. 17 and 18 are only schematic and do not limit the actual positional relationship of the magnetic induction line and the anti-theft battery 100, wherein the direction of the arrow in fig. 17 and 18 is the direction of the magnetic induction line.
Referring to fig. 15, 17 and 18 together, it can be understood that the magnitude of the magnetic flux passing through the cross section of the columnar winding core can be visually described by the number of magnetic induction lines passing through the cross section of the columnar winding core. When the battery module 200 is taken out of the cabinet 300 by a thief and the pole core 20 of the anti-theft battery 100 performs a magnetic induction line cutting motion in a magnetic field, the number of the magnetic induction lines passing through the cross section of the cylindrical winding core changes, that is, the magnetic flux passing through the cross section of the cylindrical winding core changes, and the change of the magnetic flux causes the corresponding induced electromotive force to be generated inside the pole core 20, so that an induced current signal is generated.
It can be understood that when the battery module 200 is in a stolen state, i.e., the cylindrical winding core performs a cutting magnetic induction line motion in a magnetic field, the magnetic flux passing through the cross section of the cylindrical winding core changes to enable the positive plate 23 and the negative plate 25 to cooperate to generate an induction current signal. Since the positive tab 23 is electrically connected to the positive tab 21 and the negative tab 25 is electrically connected to the negative tab 22, the induced current signal generated by the pole core 20 can be conducted to the disconnecting element 30 through the positive tab 21 or the negative tab 22, so that the disconnecting element 30 is triggered to be disconnected to cut off the conductive loop of the anti-theft battery 100, and the anti-theft battery 100 cannot be normally used.
Referring to fig. 6 and 19 together, in the second embodiment of the present application, the disconnecting element 30 may be electrically connected between the positive post 11 and the positive tab 21, or the disconnecting element 30 may be electrically connected between the negative post 12 and the negative tab 22, so that the disconnecting element 30 may be disposed on either the positive side or the negative side as required, and the present application has a wide range of applications and is highly versatile and flexible in selection. The opening element 30 can be kept in a closed state without being triggered when the triggering signal is not received, so that the conductive loop works normally to ensure the current flowing in the conductive loop. And when receiving a trigger signal, the anti-theft battery 100 is triggered to be switched to an off state, so that the electrical connection between the positive post 11 and the positive tab 21 is cut off, or the electrical connection between the negative post 12 and the negative tab 22 is cut off, so that a conductive loop is cut off, and the anti-theft battery 100 cannot output current to the outside to supply power to a load.
Specifically, since one end of positive tab 21 extends out of tab 20 to electrically connect to positive post 11, one end of negative tab 22 extends out of tab 20 to electrically connect to negative post 12, and disconnect element 30 is electrically connected between positive post 11 and positive tab 21 or between negative post 12 and negative tab 22. If positive tab 21 is directly connected to positive post 11 and negative tab 22 is connected to negative post 12, disconnection element 30 may not be mounted because of insufficient mounting space, and theft-proof performance of theft-proof battery 100 may be difficult to achieve.
Therefore, referring to fig. 20, in a possible embodiment, the anti-theft battery 100 further includes a first adaptor 60 and a second adaptor 70 disposed in the housing 14, two ends of the first adaptor 60 are electrically connected to the positive post 11 and the positive tab 21, respectively, and two ends of the second adaptor 70 are electrically connected to the negative post 12 and the negative tab 22, respectively. Disconnect element 30 may be located at first adapter 60 to break the electrical connection of positive post 11 and positive tab 21 when disconnect element 30 is disconnected, or disconnect element 30 may be located at second adapter 70 to break the electrical connection of negative post 12 and negative tab 22 when disconnect element 30 is disconnected. By providing the first adaptor 60 and the second adaptor 70, a sufficient installation space can be provided for installation of the disconnecting element 30, which is beneficial to reasonable layout of devices inside the anti-theft battery 100.
For example, as shown in fig. 20, if the disconnecting element 30 is located at the first adaptor 60, the induced current signal generated by the pole core 20 is transmitted to the disconnecting element 30 through the positive pole tab 21, so that the disconnecting element 30 is triggered to be disconnected, so as to cut off the electrical connection between the positive pole 11 and the positive pole tab 21, thereby cutting off the conductive loop of the anti-theft battery 100, and making the anti-theft battery 100 unable to be used normally.
It should be noted that the configurations of the first adaptor 60, the second adaptor 70 and the switch 30 in fig. 20 are only illustrated for convenience, and the configurations of the first adaptor 60, the second adaptor 70 and the switch 30 in fig. 20 do not limit the configurations of the first adaptor 60, the second adaptor 70 and the switch 30 in fig. 20.
Specifically, positive tab 21 and negative tab 22 are located on the same side of pole piece 20, that is, positive tab 21 and negative tab 22 may be located on either side of pole piece 20 close to positive post 11 and negative post 12 or on the side of pole piece 20 away from positive post 11 and negative post 12. One end of the first connecting piece 60 is fixedly connected with the positive tab 21, and the other end of the first connecting piece 60 is fixedly connected with the negative tab 22; one end of the second adaptor 70 is fixedly connected with the positive tab 21, and the other end of the second adaptor 70 is fixedly connected with the negative tab 22. In one possible embodiment, the first adapter 60 and the second adapter 70 may each be copper bars.
It will be appreciated that first junction piece 60 may provide sufficient contact area to enable positive tab 21 and positive post 11 to make effective contact with first junction piece 60, thereby ensuring a stable flow of current between positive tab 21 and positive post 11. The second adaptor 70 can provide a sufficient contact area, so that the negative electrode tab 22 and the negative electrode post 12 can be effectively contacted with the second adaptor 70, thereby ensuring the stable flow of current between the negative electrode tab 22 and the negative electrode post 12, further improving the overall stability and reliability of the conductive loop of the anti-theft battery 100, and facilitating the long-term safe use of the anti-theft battery 100. And because the first adaptor 60 and the second adaptor 70 can have flexibility, the space layout inside the anti-theft battery 100 can be adapted by bending and stretching in the limited inner space of the anti-theft battery 100.
It should be noted that, in order to prevent the theft prevention function of the theft prevention battery 100 from being turned on due to the fact that the worker checks, maintains or installs the battery module 200, the battery module 200 cannot be used any more. When the worker checks, maintains or installs the battery module 200, the air corresponding to the electromagnetic device 331 in the ac power distribution unit 322 may be disconnected, so that the dc bus bar no longer supplies power to the electromagnetic device 331, and then the battery module 200 is taken out or installed. Since the electromagnetic device 331 is turned off, it will not generate a magnetic field by electrifying, so that the disconnecting element 30 is still in a closed state, and the conductive loop will not be cut off, thereby effectively avoiding the problem that the battery module 200 can not be used any more due to inspection, maintenance or installation.
In the third embodiment of the present application, unlike the second embodiment described above, the trigger signal is an external signal issued by the BMS board 230, and the disconnection element 30 can be disconnected upon receiving the trigger signal to cut off the conductive loop by way of example.
It is understood that, in the third embodiment, the structure of the cabinet 300 and the structure of the anti-theft battery 100 may be the same as those in the second embodiment, and the electromagnetic device group 330 is also provided, and the structure of the anti-theft battery 100 is also the same, so that when the pole core 20 of the anti-theft battery 100 makes a cutting magnetic induction line movement in a magnetic field, an induced current signal is also generated inside the pole core 20. However, unlike the second embodiment, the trigger signal is not an induced current signal generated inside the pole piece 20, but an external signal issued by the BMS board 230.
Referring to fig. 15 and 21, in particular, the BMS board 230 of the battery module 200 is further provided with a sampling unit 234, the sampling unit 234 is electrically connected to the control unit 231, and the sampling unit 234 is further electrically connected to the anti-theft battery 100 and each energy storage battery (not shown) for measuring the voltage, the current, the temperature, and the like of the anti-theft battery 100 and each energy storage battery.
In one possible embodiment, the positive post 11 and the negative post 12 of the anti-theft battery 100 are both connected to the sampling unit 234 through a sampling line 237, so as to electrically connect the sampling unit 234 to the positive post 11 and the negative post 12 of the anti-theft battery 100. Sampling unit 234 is used to detect the voltage between positive post 11 and negative post 12 of anti-theft battery 100.
It will be appreciated that the disconnect element 30 can only be triggered on receipt of the induced current signal if the signal strength of the induced current signal meets a preset trigger threshold for the disconnect element 30. In other words, if the signal strength of the induced current signal does not satisfy the preset trigger threshold of the disconnect element 30, the disconnect element 30 cannot be triggered even if the induced current signal is received.
In a specific application scenario, the signal strength of the induced current signal generated by the pole piece 20 cutting the magnetic induction wire does not satisfy the preset trigger threshold of the disconnecting element 30, so that the disconnecting element 30 cannot be triggered. And due to the arrangement of sampling unit 234, sampling unit 234 can detect the voltage between positive pole post 11 and negative pole post 12 in real time. In the case where the battery module 200 is operating normally, the potential difference between the positive and negative poles 11 and 12 detected by the sampling unit 234 is 0. When the battery module 200 is stolen, the battery module 200 needs to be taken out of the cabinet 300, the battery module 200 moves to drive the anti-theft battery 100 in the battery module 200 to move together, so that the anti-theft battery 100 is displaced, at the moment, the pole core 20 cuts magnetic lines of force in a magnetic field to generate induced electromotive force, the presence of the induced electromotive force can enable a potential difference (the potential difference is not 0) to be formed between the positive pole column 11 and the negative pole column 12 of the anti-theft battery 100, and the sampling unit 234 can detect that the positive pole column 11 and the negative pole column 12 of the anti-theft battery 100 have the potential difference. And only when the control unit 231 determines that the sampling unit 234 detects that there is a potential difference between the positive post 11 and the negative post 12 of the antitheft battery 100, a trigger signal is sent to the disconnecting element 30.
Therefore, the control unit 231 does not trigger the disconnecting element 30 by the induced current signal, and the sampling unit 234 detects that there is a potential difference between the positive post 11 and the negative post 12 of the anti-theft battery 100 as a preset theft condition, so as to determine that the battery module 200 meets the preset theft condition, that is, the induced current signal does not trigger the disconnecting element 30, and when the sampling unit 234 detects that there is a potential difference between the positive post 11 and the negative post 12 of the anti-theft battery 100, it can be determined that the anti-theft battery 100 is stolen. The control unit 231 may then send a trigger signal to the disconnecting element 30, so that the disconnecting element 30 is triggered to be disconnected, so as to cut off the conductive loop of the anti-theft battery 100, and prevent the anti-theft battery 100 from being used normally.
In other words, the control unit 231 is further configured to: and judging whether the signal intensity of the induced current signal meets a preset trigger threshold value or not. When the signal intensity of the induced current signal is determined not to meet the preset trigger threshold value of the disconnecting element 30 and the sampling unit 234 is determined to detect that the potential difference exists between the positive pole 11 and the negative pole 12 of the anti-theft battery 100, a trigger signal is sent to the disconnecting element 30, so that the disconnecting element 30 is disconnected to cut off the conductive loop. On the contrary, if the signal strength of the induced current signal satisfies the preset trigger threshold, the induced current signal directly triggers the disconnecting element 30, so that the disconnecting element 30 is disconnected to cut off the conductive loop.
Referring to fig. 22, in one possible embodiment, since the BMS board 230 is further provided with the buzzer 232 and the buzzer 232 is electrically connected with the control unit 231, the control unit 231 may also be used to trigger the buzzer 232 to alarm when it is determined that the disconnection element 30 cuts off the conductive loop. Therefore, the alarm sound of the buzzer 232 can make the worker quickly notice the stolen condition of the battery module 200, so as to recover the loss in time or replace the battery module in time.
The technical solution of the present application, by providing the disconnecting element 30 inside the anti-theft battery 100 and connecting the disconnecting element 30 to the conductive loop of the anti-theft battery 100, when the anti-theft battery 100 is displaced due to theft, the pole core 30 inside the anti-theft battery 100 or the BMS board 230 controlling the anti-theft battery 100 may generate and transmit a trigger signal to the disconnection element 30, when receiving the trigger signal, the disconnecting element 30 is triggered to cut off or short the conductive loop, so that the anti-theft battery 100 can no longer supply power to the outside, so that even if a thief who steals the anti-theft battery 100, since the anti-theft battery 100 can not output to the outside any more and the anti-theft battery 100 can not be used normally to supply power to the load, therefore, the theft-proof battery 100 loses the theft value, so that a thief can not steal the theft-proof battery 100 any more, and the special theft-proof protection of the theft-proof battery 100 is realized. In addition, compared with the traditional mechanical structure anti-theft method, the anti-theft method only increases the time and difficulty for a thief to steal the anti-theft battery 100, and cannot fundamentally influence the use of the stolen battery by the thief, the technical scheme of the application adds the disconnecting element 30 in the anti-theft battery 100, on one hand, effective identification from the appearance in a short time is difficult, and the concealment of anti-theft measures is high, on the other hand, because the disconnecting element 30 is a conducting loop which is disconnected or short-circuited in the anti-theft battery 100, the anti-theft battery 100 can not be normally used, the possibility that the anti-theft battery 100 can be continuously used after being stolen can be reduced to the minimum, and the anti-theft performance of the anti-theft battery 100 is greatly enhanced.
Referring to fig. 23, an embodiment of the present application further provides a battery anti-theft method applied to the cabinet 300 shown in fig. 1 or fig. 14. Referring to fig. 1, 5, 6 and 15, the cabinet 300 includes a battery module 200, the battery module 200 includes an anti-theft battery 100, the anti-theft battery 100 includes a battery housing 10 and a disconnecting element 30 disposed in the battery housing 10, the disconnecting element 30 is connected to the conductive loop of the anti-theft battery 100, and the disconnecting element 30 is configured to receive a trigger signal to cut off or short-circuit the conductive loop of the anti-theft battery 100.
The battery anti-theft method at least comprises the following steps S100 and S200:
s100: it is determined whether the battery module 200 satisfies a predetermined theft condition.
It is understood that, as shown in fig. 5, 6 and 8, each Battery module 200 includes a module case 210, the anti-theft Battery 100 and a BMS (Battery Management System) board provided in the module case 210.
The anti-theft battery 100 comprises a battery shell 10, and a pole core 20 and a disconnecting element 30 which are arranged in the battery shell 10, wherein the pole core 20 is provided with a positive pole lug 21 and a negative pole lug 22, the battery shell 10 is provided with a positive pole post 11 and a negative pole post 12, the positive pole post 11 is electrically connected to the positive pole lug 21, the negative pole post 12 is electrically connected to the negative pole lug 22 to form a conductive loop, the disconnecting element 30 is connected to the conductive loop, and the disconnecting element 30 is used for receiving a trigger signal to cut off or short the conductive loop.
The BMS board 230 is provided with a control unit 231 and a sampling unit (not shown), the control unit 231 is electrically connected to the anti-theft battery 100, and the control unit 231 is used to determine whether the battery module 200 satisfies a preset theft condition. The control unit 231 is adopted to judge the state of the battery module 200, so that the real-time state of the battery module 200 can be determined quickly and accurately, and the anti-theft performance of the battery module 200 is improved. The sampling unit is electrically connected to the control unit 231, and the sampling unit is also electrically connected to the anti-theft battery 100 to measure voltage, current, temperature, etc. of the anti-theft battery 100.
Referring to fig. 10, in one possible embodiment, the battery module 200 further includes a gyro sensor 233, the gyro sensor 233 is disposed on the BMS board 230, and the gyro sensor 233 is electrically connected to the control unit 231.
The gyro sensor 233 is used to detect the inclination angle or displacement of the battery module 200 and transmit the inclination or displacement information of the battery module 200 to the control unit 231 when the battery module 200 is inclined or displaced, and the control unit 231 takes the received inclination or displacement information of the battery module 200 as a preset theft condition.
Referring to fig. 1, 2 and 11 together, in another possible embodiment, the cabinet 300 is provided with a dc bus bar 324, the BMS board 230 is provided with a power output line 235 electrically connected to the control unit 231, and the power output line 235 of the BMS board 230 is further electrically connected to the dc bus bar 324, that is, the control unit 231 and the dc bus bar 324 are electrically connected through the power output line 235.
It can be understood that the dc bus bar 324 and the control unit 231 are electrically connected through the power output line 235, so that the dc bus bar 324 can distribute the dc power to the battery module 200 effectively, reasonably and as needed, or the battery module 200 can distribute the stored dc power to the dc power devices effectively, reasonably and as needed through the dc bus bar 324. In addition, the direct input and output of the direct current can be realized by the arrangement of the direct current bus bar 324, so that the direct current power distribution unit 323 does not need to be additionally provided with a switching power supply component, the cost is saved, and meanwhile, the problem of faults caused by the arrangement of wiring and the switching power supply component is reduced.
Since the power output line 235 is electrically connected between the control unit 231 and the dc bus bar 324, that is, between the battery module 200 and the dc bus bar 324, no matter the dc bus bar 324 supplies power to the battery module 200 or the battery module 200 supplies power to the dc bus bar 324, current always flows between the battery module 200 and the dc bus bar 324. Accordingly, the control unit 231 disconnects the power output line 235 from the dc bus bar 324 as a preset theft condition.
Referring to fig. 1 and 12 together, in yet another possible embodiment, an upper computer management system 326 is disposed in the cabinet 300, the BMS board 230 is provided with a communication line 236 electrically connected to the control unit 231, and the communication line 236 of the BMS board 230 is further electrically connected to the upper computer management system 326, that is, the control unit 231 and the upper computer management system 326 are electrically connected through the communication line 236.
It can be understood that the control unit 231 may transmit the real-time data of the battery module 200 acquired by the control unit 231 to the upper computer management system 326 through the communication line 236, so that the upper computer management system 326 may implement functions of monitoring and dumping data of the battery module 200, analyzing performance of the battery module 200, and the like. That is, the upper computer management system 326 can manage the battery module 200. By way of example, the communication line 236 may be a CAN bus,
when the control unit 231 is connected to the upper management system 326, it indicates that there is effective communication between the control unit 231 and the upper management system 326. Thereby, the control unit 231 disconnects the communication line 236 from the upper computer management system 326 as a preset theft condition.
Referring to fig. 7, fig. 15 and fig. 18, in yet another possible implementation, the cabinet 300 further includes an electromagnetic device set 330, the electromagnetic device set 330 includes two electromagnetic devices 331, and the two electromagnetic devices 331 cooperate to form a magnetic field, so that the battery module 200 is located within the range of the magnetic field. Each electromagnetic device 331 is a power-on coil, and each power-on coil includes a first end and a second end disposed opposite to the first end. Since the energizing solenoids can be analogized to a bar magnet, the first and second ends of each energizing solenoid are opposite in polarity.
It will be appreciated that in the electromagnetic assembly 330, i.e., the two oppositely disposed energized solenoids, the two first ends have opposite polarities and the two second ends have opposite polarities. The two electromagnetic devices 331 are arranged and arranged oppositely, so that the magnetic induction lines of the magnetic field can come out of one electrifying spiral pipe and enter the other electrifying spiral pipe while the magnetic field covering the battery module 200 is formed in a matching manner, and a closed loop of the magnetic induction lines is formed.
When the magnetic field generated by the electromagnetic device set 330 stably covers the battery module 200, the battery module 200 can be kept stable in the magnetic field during normal operation, and when the battery module 200 is stolen, the battery module 200 needs to be taken out of the cabinet 300, and the battery module 200 moves to drive the anti-theft battery 100 in the battery module 200 to move together, so that the pole core 20 of the anti-theft battery 100 cuts the magnetic induction line to work, and induced electromotive force is generated.
Specifically, the pole core 20 is a columnar winding core formed by stacking the positive electrode sheet 23, the separator 24, and the negative electrode sheet 25 in this order and winding them as a whole, and the cross section of the columnar winding core is perpendicular to the direction of the magnetic induction line of the magnetic field. Accordingly, the pole core 20 can generate induced electromotive force by changing the magnetic flux passing through the cross section of the columnar winding core.
The size of the magnetic flux passing through the cross section of the columnar winding core can be vividly described by the number of the magnetic induction lines passing through the cross section of the columnar winding core. When the battery module 200 is taken out of the cabinet 300 by a thief and the pole core 20 of the anti-theft battery 100 performs a magnetic induction line cutting motion in a magnetic field, the number of the magnetic induction lines passing through the cross section of the columnar winding core changes, that is, the magnetic flux passing through the cross section of the columnar winding core changes, and the change of the magnetic flux causes the corresponding induced electromotive force to be generated inside the pole core 20.
It can be understood that when the battery module 200 is in a stolen state, i.e., the cylindrical winding core performs a cutting magnetic induction line motion in a magnetic field, the magnetic flux passing through the cross section of the cylindrical winding core is changed to cause the positive pole piece 23 and the negative pole piece 25 to cooperate to generate induced electromotive force. Because the positive tab 23 is electrically connected to the positive tab 21, the positive tab 21 is electrically connected to the positive post 11, the negative tab 25 is electrically connected to the negative tab 22, and the negative tab 22 is electrically connected to the negative post 12. Therefore, the induced electromotive force generated by the pole core 20 can be transmitted to the positive pole post 11 and the negative pole post 12 of the anti-theft battery 100, and further, a potential difference is generated between the positive pole post 11 and the negative pole post 12 of the anti-theft battery 100.
Referring to fig. 15 and fig. 21, in detail, the positive post 11 and the negative post 12 of the anti-theft battery 100 are connected to the sampling unit 234 through a sampling line 237, respectively, and the sampling unit 234 is configured to detect a voltage between the positive post 11 and the negative post 12 of the anti-theft battery 100.
It is understood that in the case where the battery module 200 is operating normally, the potential difference between the positive and negative poles 11 and 12 detected by the sampling unit 234 is 0, and when the battery module 200 is stolen, the sampling unit 234 may detect that there is a potential difference (the potential difference is not 0) between the positive and negative poles 11 and 12 of the antitheft battery 100.
Therefore, the voltage between the positive electrode post 11 and the negative electrode post 12 can be detected first, and then, whether the battery module 200 satisfies the preset theft condition or not can be judged according to the potential difference between the positive electrode post 11 and the negative electrode post 12. The control unit 231 may set the sampling unit 234 to detect that there is a potential difference between the positive and negative poles 11 and 12 of the antitheft battery 100 as a preset theft condition.
S200: when it is determined that the battery module 200 satisfies the preset theft condition, a trigger signal is transmitted to the disconnection element 30 of the anti-theft battery 100, so that the disconnection element 30 receives the trigger signal to short-circuit or cut off the conductive loop of the anti-theft battery 100.
Referring to fig. 5 and 10 together, in one possible embodiment, the disconnection element 30 may be electrically connected between the positive and negative poles 11 and 12, and the battery module 200 further includes a gyro sensor 233, the gyro sensor 233 being provided at the BMS board 230, the gyro sensor 233 being electrically connected to the control unit 231.
The gyro sensor 233 is configured to detect an inclination angle or displacement of the battery module 200, and transmit inclination or displacement information of the battery module 200 to the control unit 231 when the battery module 200 is inclined or displaced, and the control unit 231 uses the received inclination or displacement information of the battery module 200 as a preset theft condition, so that when it is determined that the battery module 200 satisfies the preset theft condition, that is, when the inclination or displacement occurs, it is determined that the anti-theft battery 100 is stolen, and then a trigger signal is transmitted to the disconnect element 30 of the anti-theft battery 100. By arranging the gyro sensor 233, the movement posture of the battery module 200 can be determined quickly and accurately, so that when the battery module 200 is inclined or displaced, the control unit 231 can send a trigger signal to the disconnecting element 30, and the disconnecting element 30 is triggered to be closed, so as to short-circuit the conductive loop of the anti-theft battery 100, and prevent the anti-theft battery 100 from being used normally.
Referring to fig. 1, 5 and 11 together, in another possible embodiment, the disconnecting element 30 may be electrically connected between the positive post 11 and the negative post 12, the cabinet 300 is provided with a dc bus bar 324, the BMS board 230 is provided with a power output line 235 electrically connected with the control unit 231, and the power output line 235 of the BMS board 230 is further electrically connected to the dc bus bar 324, that is, the control unit 231 and the dc bus bar 324 are electrically connected through the power output line 235.
It is understood that since power output line 235 is electrically connected between control unit 231 and dc bus bar 324, i.e. between battery module 200 and dc bus bar 324, no matter whether dc bus bar 324 supplies power to battery module 200 or battery module 200 supplies power to dc bus bar 324, current always flows between battery module 200 and dc bus bar 324. Therefore, the control unit 231 disconnects the power output line 235 from the dc bus 324 as a predetermined theft condition, so that when it is determined that the battery module 200 satisfies the predetermined theft condition, that is, the power output line 235 is disconnected from the dc bus 324, it can be determined that the anti-theft battery 100 is stolen. Then, the control unit 231 may send a trigger signal to the opening element 30, so that the opening element 30 is triggered to close, so as to short-circuit the conductive loop of the anti-theft battery 100, and prevent the anti-theft battery 100 from being used normally.
Referring to fig. 1, 5 and 12 together, in yet another possible embodiment, the disconnecting element 30 may be electrically connected between the positive post 11 and the negative post 12, an upper computer management system 326 is disposed in the cabinet 300, the BMS board 230 is provided with a communication line 236 electrically connected with the control unit 231, and the communication line 236 of the BMS board 230 is further electrically connected to the upper computer management system 326, that is, the control unit 231 and the upper computer management system 326 are electrically connected through the communication line 236.
It is understood that when the control unit 231 is connected to the upper computer management system 326, it indicates that there is effective communication between the control unit 231 and the upper computer management system 326. Thus, the control unit 231 determines that the theft prevention battery 100 is stolen by setting the disconnection of the communication line 236 from the upper computer management system 326 as a preset theft condition, and when the disconnection of the communication line 236 from the upper computer management system 326 is determined. Then, the control unit 231 may send a trigger signal to the opening element 30, so that the opening element 30 is triggered to close, so as to short-circuit the conductive loop of the anti-theft battery 100, and prevent the anti-theft battery 100 from being used normally.
Referring to fig. 6, 15 and 21, in another possible embodiment, the disconnecting element 30 may be electrically connected between the positive post 11 and the positive tab 21, or the disconnecting element 30 may be electrically connected between the negative post 12 and the negative tab 22. The BMS board 230 of the battery module 200 is further provided with a sampling unit 234, the positive post 11 and the negative post 12 of the anti-theft battery 100 are both connected with the sampling unit 234 through a sampling line 237, respectively, and the sampling unit 234 is used for detecting the voltage between the positive post 11 and the negative post 12 of the anti-theft battery 100.
Due to the arrangement of the sampling unit 234, the sampling unit 234 can detect the voltage between the positive pole 11 and the negative pole 12 in real time. Under the condition that the battery module 200 normally works, the potential difference between the positive post 11 and the negative post 12 detected by the sampling unit 234 is 0, when the battery module 200 is stolen, the pole core 20 cuts magnetic lines of force in a magnetic field to generate induced electromotive force, the existence of the induced electromotive force can enable the positive post 11 and the negative post 12 of the anti-theft battery 100 to have a potential difference (the potential difference is not 0), and the sampling unit 234 can detect the potential difference between the positive post 11 and the negative post 12 of the anti-theft battery 100. And only when the control unit 231 determines that the sampling unit 234 detects that there is a potential difference between the positive post 11 and the negative post 12 of the antitheft battery 100, a trigger signal is sent to the disconnecting element 30.
Therefore, the control unit 231 takes the potential difference between the positive pole 11 and the negative pole 12 of the anti-theft battery 100 detected by the sampling unit 234 as a preset theft condition, so as to determine that the anti-theft battery 100 is stolen when it is determined that the battery module 200 meets the preset theft condition, i.e., the sampling unit 234 detects the potential difference between the positive pole 11 and the negative pole 12 of the anti-theft battery 100. The control unit 231 may then send a trigger signal to the disconnecting element 30, so that the disconnecting element 30 is triggered to be disconnected, so as to cut off the conductive loop of the anti-theft battery 100, and prevent the anti-theft battery 100 from being used normally.
Based on the above four embodiments, as shown in fig. 9 and 22, the battery module 200 may further include a buzzer 232 electrically connected to the anti-theft battery 100, the buzzer 232 may be disposed on the BMS board 230 and electrically connected to the control unit 231, and the sampling unit 234 detects the voltage between the positive post 11 and the negative post 12 when the disconnection element 30 is determined to be triggered by the trigger signal. Next, when the control unit 231 determines that the sampling unit 234 detects that the voltage between the positive and negative poles 11 and 12 is zero, the buzzer 232 is triggered.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (6)

1. A cabinet is characterized by comprising a battery compartment, an electromagnetic device group and a battery module, wherein the electromagnetic device group and the battery module are arranged in the battery compartment;
the battery compartment comprises four side walls which are sequentially connected, the four side walls are two first side walls which are oppositely arranged along a first direction and two second side walls which are oppositely arranged along a second direction, and the first direction is vertical to the second direction;
the electromagnetic device group comprises two electromagnetic devices, the two electromagnetic devices are oppositely arranged on the two first side walls, or the two electromagnetic devices are oppositely arranged on the two second side walls, and the two electromagnetic devices are matched to form a magnetic field;
the battery module is arranged in the battery cabin and is positioned in the range of the magnetic field, the battery module comprises a plurality of energy storage batteries which are connected in series and a BMS board used for controlling the plurality of energy storage batteries, and at least one energy storage battery is an anti-theft battery;
the anti-theft battery comprises a battery shell, a pole piece and a disconnecting element, wherein the pole piece and the disconnecting element are arranged in the battery shell, the pole piece of the anti-theft battery is a columnar winding core formed by sequentially stacking a positive pole piece, a diaphragm and a negative pole piece and integrally winding the positive pole piece, the diaphragm and the negative pole piece, the direction of a magnetic induction line of a magnetic field is perpendicular to the cross section of the columnar winding core, the pole piece is provided with a positive pole lug and a negative pole lug, the battery shell is provided with the positive pole lug and the negative pole lug, the positive pole lug is electrically connected to the positive pole lug, the negative pole lug is electrically connected to the negative pole lug to form a conductive loop, the disconnecting element is arranged on the conductive loop, and the disconnecting element is used for receiving a trigger signal to cut off or short circuit the conductive loop;
the trigger signal is generated by the pole core and transmitted to the disconnecting element when the anti-theft battery is displaced, or the trigger signal is generated by a BMS board used for controlling the anti-theft battery and transmitted to the disconnecting element when the anti-theft battery is displaced.
2. The cabinet of claim 1, wherein each of said electromagnetic devices is a power-on solenoid, each of said power-on solenoids comprising a first end and a second end disposed opposite said first end, wherein the polarity of the two first ends of the two oppositely disposed power-on solenoids is opposite and the polarity of the two second ends is opposite.
3. The cabinet of claim 1, wherein the trigger signal is an induced current signal, the positive tab is electrically connected to the positive tab, the negative tab is electrically connected to the negative tab, when the cylindrical winding core performs a cutting magnetic induction movement in the magnetic field, magnetic flux passing through a cross section of the cylindrical winding core changes so that the positive tab and the negative tab cooperate to generate the induced current signal, and the induced current signal is conducted to the disconnect element through the positive tab or the negative tab.
4. The cabinet of claim 1, further comprising an equipment bay disposed adjacent to the battery bay, wherein a DC bus bar is disposed in the equipment bay, wherein a power output line of a BMS board of the battery module is connected to the DC bus bar, and wherein the power output line is further electrically connected to a control unit of the BMS board,
and when the control unit of the BMS board determines that the power output line is disconnected with the direct-current busbar, the trigger signal is sent to the disconnection element.
5. The cabinet of claim 1, further comprising an equipment bay disposed adjacent to the battery bay, wherein an upper computer management system is disposed in the equipment bay, wherein the communication lines of the BMS board of the battery module are connected to the upper computer management system and are further electrically connected to the control unit of the BMS board,
transmitting the trigger signal to the disconnection element when the control unit of the BMS board determines that the communication line is disconnected from the upper management system.
6. The cabinet according to claim 3, wherein the BMS board of the battery module is provided with a sampling unit, the positive pole and the negative pole of the anti-theft battery are connected with the sampling unit through a sampling line, respectively, the sampling unit is electrically connected to the control unit of the BMS board, the sampling unit is used for detecting the voltage between the positive pole and the negative pole of the anti-theft battery,
and when the control unit of the BMS board determines that the signal intensity of the induced current signal generated by the pole core does not meet the preset trigger threshold value of the disconnecting element and determines that the sampling unit detects that the positive pole and the negative pole have a potential difference, sending the trigger signal to the disconnecting element.
CN202010482872.1A 2020-05-30 2020-05-30 Anti-theft battery, battery module and cabinet Active CN111682134B (en)

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CN113067044A (en) * 2021-03-24 2021-07-02 湖北亿纬动力有限公司 Anti-theft battery, electric equipment and anti-theft method

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FR2509532A2 (en) * 1981-04-22 1983-01-14 Giacino Pierre Antitheft device against unauthorised use of vehicle battery - uses key operated moving contact in terminal connection of lead acid batteries to prevent theft of energy
JP4366385B2 (en) * 2006-08-31 2009-11-18 株式会社東海理化電機製作所 Charging system
CN201732842U (en) * 2010-06-24 2011-02-02 姜金平 Anti-theft storage cell
CN202976361U (en) * 2012-12-19 2013-06-05 山东省科学院海洋仪器仪表研究所 Battery anti-theft device and battery
CN209561571U (en) * 2019-04-16 2019-10-29 山东圣阳电源股份有限公司 A kind of lithium ion battery anti-theft device and system
CN110943260B (en) * 2019-10-25 2021-09-03 华为技术有限公司 Battery anti-theft method, anti-theft battery and base station

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