CN114498800A - Battery management system comprising anti-reverse parallel switch assembly - Google Patents
Battery management system comprising anti-reverse parallel switch assembly Download PDFInfo
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- CN114498800A CN114498800A CN202011273089.0A CN202011273089A CN114498800A CN 114498800 A CN114498800 A CN 114498800A CN 202011273089 A CN202011273089 A CN 202011273089A CN 114498800 A CN114498800 A CN 114498800A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
- H02J7/0032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a battery management system comprising an anti-reverse parallel switch assembly, which comprises batteries, a surge suppressor, an energy storage matrix, an anti-reverse switch assembly and a matrix battery management and energy scheduling system, wherein a plurality of batteries are connected in series to form a battery string, the connecting end of the battery string and the connecting end of the anti-reverse switch assembly are connected in series to form a battery cluster, the positive pole and the negative pole of the energy storage matrix are respectively and electrically connected with the connecting end of the matrix battery management and energy scheduling system, the matrix battery management and energy scheduling system comprises a charging end, a communication unit, an operation unit, an energy scheduling unit and a central management system, the connecting end of the communication unit is electrically connected with the connecting end of the central management system, the other end of the central management system is connected with the charging end, and the central management system is in communication connection with the anti-reverse switch assembly in the plurality of battery clusters; according to the battery management system of the invention, the reliability of preventing thermal runaway is greatly improved.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to a battery management system comprising an anti-reverse parallel switch assembly.
Background
Lithium batteries are the highest energy density secondary power source to date. There are many advantages, but there are also potential risks, the most significant of which are the safety management and dynamic consistency life issues of the battery. The grouping technology of the existing power lithium battery mostly adopts single-channel BMS management, and is a single-channel centralized management mode. At present, a plurality of parallel modules are formed by connecting an electric core in parallel, all the parallel modules are connected in series to achieve certain target voltage, all sampling information of the modules is transmitted to a centralized BMS unit in a communication mode, and finally, a battery system which is required by system application is formed by safety management through a set of switch assembly and single channel output. In the process of battery management, the BMS collects concentrated data of each path of each parallel module, the collected content comprises voltage, current, temperature and the like, the collected data are uploaded to a centralized BMS management system and a control unit, and the BMS controls a protection switch of a terminal in real time.
Although the traditional battery management mode is seemingly simple in structure and has certain intelligence, the traditional battery management mode has the following problems:
1. because each parallel module has too large electric quantity, balance can not be implemented, and thus serious consistency attenuation problems of the battery in long-term use and repeated charge and discharge processes can be caused.
2. The single channel design mode, under the condition of high-power work, must cause the load pressure of passageway, take electric automobile as an example, because electric automobile's group battery design voltage is common more than 300 volts, put forward higher requirement to all management and control switching device, the improvement of withstand voltage grade represents the decline of cost improvement and reliability, in addition not only have hundreds of welding points on the passageway, and all drive power of car is realized by this passageway entirely, this in-process, the operating current of passageway is common more than 200 ~ 300 amperes, peak current leads to the passageway overheated even thousands, and then cause the battery overheated, cause the thermal runaway.
3. Generally, the reaction time of thermal runaway is within 5 seconds, and the power is high, so that once the thermal runaway occurs, the thermal runaway cannot be controlled or inhibited.
Disclosure of Invention
In order to solve the problems, the invention provides a battery management system comprising an anti-reverse parallel switch assembly, which comprises batteries, a surge suppressor, an energy storage matrix, an anti-reverse switch assembly and a matrix battery management and energy scheduling system, wherein a plurality of batteries are connected in series to form a battery string, the connecting end of the battery string and the connecting end of the anti-reverse switch assembly are connected in series to form a battery cluster, the positive electrode and the negative electrode of the energy storage matrix are respectively and electrically connected with the connecting end of the matrix battery management and energy scheduling system, the matrix battery management and energy scheduling system comprises a charging end, a communication unit, an operation unit, an energy scheduling unit and a central management system, the connecting end of the communication unit is electrically connected with the connecting end of the central management system, the other end of the central management system is connected with the charging end, and the central management system is in communication connection with the anti-reverse switch assembly in the plurality of battery clusters, the anti-reverse switch assembly is in communication connection with the battery strings, and the connecting ends of the surge suppressors are respectively connected with the connecting ends of the plurality of battery clusters in parallel.
According to a specific embodiment of the present invention, the anti-reverse switch assembly includes a first power connection terminal, a first electronic switch, a first signal collection management unit, a main channel switch, a first current limiting unit, a temperature sampling block, a first communication interface, and a first management power input, wherein a connection terminal of the first power connection terminal is connected in series with a connection terminal of the main channel switch, a connection terminal of the first electronic switch is connected in series with a connection terminal of the first current limiting unit, a connection terminal of the first electronic switch and the first current limiting unit is connected in parallel with a connection terminal of the main channel switch, a connection terminal of the first signal collection management unit is electrically connected with the main channel switch and the first electronic switch, respectively, a connection terminal of the first signal collection management unit is electrically connected with a connection terminal of the first communication interface and the first management power input, the number of the first electronic switches is two, and the connecting ends of the two first electronic switches are connected in series.
According to a specific embodiment of the invention, the anti-reverse switch assembly comprises a second power terminal, a second current limiting unit, a second signal acquisition management unit, a double-touch double-bridge switch, a diode, a second electronic switch, a second communication interface and a second management power input, wherein the double-touch double-bridge switch comprises a first contact and a second contact, a connecting end of the first contact is connected in parallel with a connecting end of the second contact, a connecting end of the second power terminal is connected in series with the connecting end of the first contact, a connecting end of the diode is connected in series with the connecting end of the second contact and is connected in parallel with the connecting end of the first contact, a connecting end of the second electronic switch is connected in series with the connecting end of the second current limiting unit and then is connected in parallel with the connecting end of the first contact, and a connecting end of the second signal acquisition management unit is respectively connected with the double-touch double-bridge switch, the first contact, the diode and the second electronic switch, The second communication interface is electrically connected with the connecting end of the second management power supply input.
According to a specific embodiment of the present invention, the double-touch double-bridge switch comprises a first switch, a second switch and a frame:
the first switch comprises a first coil, a first linkage bridge, a first contact and a first position sensing element, and the connecting ends of the first coil, the first linkage bridge, the first contact and the first position sensing element are electrically connected;
the second switch comprises a second coil, a second linkage bridge, a second contact and a second position sensing element, and the connecting ends of the second coil, the second linkage bridge, the second contact and the second position sensing element are electrically connected;
the frame includes first mount pad and second mount pad, first switch and second switch are installed respectively in the inside of first mount pad and second mount pad.
According to an embodiment of the present invention, the first position sensing element includes a first micro switch, and the first coil, the first linkage bridge and the connection end of the first micro switch are electrically connected;
the second position sensing element comprises a second micro switch, and the connecting ends of the second coil, the second linkage bridge and the second micro switch are electrically connected.
According to a specific embodiment of the present invention, the first position sensing element comprises a first position sensor, and the first coil, the first linkage bridge and the connection end of the first position sensor are electrically connected;
the second position sensing element comprises a second position sensor, and the connecting ends of the second coil, the second linkage bridge and the second position sensor are electrically connected.
Compared with the prior art, the invention has the following advantages:
every battery of energy storage matrix self has independent management and protect function and to outer transport signal, carries out the in-process that the single channel is established ties when a plurality of battery clusters, in case certain battery cell in a certain battery cluster is unusual the condition appears, the 1 st level protection is implemented the outage by the battery cluster from the mechanical switch who takes, informs abnormal signal simultaneously, prevents the anti-parallel connection ware, has three kinds of states this moment:
the battery protection circuit has the advantages that firstly, in an overcharging state, the anti-reverse switch is turned off secondarily, but single-channel current-limiting discharge of the battery is not influenced.
And secondly, in an over-discharge state, the anti-reverse switch is switched off for the second time, but the single-channel current-limiting charging of the battery is not influenced.
③ thermal runaway state: in this system, every battery cluster compares an isolation cabin, do the support by inside phase change material, shell material is fire-retardant, dynamic balance function guarantees the uniformity of battery, the safety protection of battery is guaranteed to the switch module of battery cluster, in the in-process that unusual hot type accuse takes place, at first the module is from the outage, keep apart with the passageway, the passageway is through preventing that reverse switch module cuts off the power supply once more and system isolation, the module is inside carries out energy by phase change material and is absorbed, there is fire-retardant shell spare to carry out secondary energy and absorb and keep apart, stop chain reaction, practice proves, this system architecture can guarantee that the battery is whole to be consistent well, thermal runaway's blocking ability is two orders of magnitude than the improvement of traditional lithium battery system.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference characters generally refer to the same or similar parts.
FIG. 1 is a schematic diagram of a battery management system including an anti-reverse switch assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an anti-reverse switch assembly 1 according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of an anti-reverse switch assembly 2 according to an embodiment of the invention;
fig. 4 is a schematic diagram of a double-touch double-bridge switch in the structure of the anti-reverse switch assembly 2 according to an embodiment of the invention.
In the figure: 7. a first power terminal; 8. a first electronic switch; 9. a first signal acquisition management unit; 10. a main channel switch; 11. a first current limiting unit; 12. a temperature sampling block; 13. a first communication interface; 14. a first managed power input; 30. a second power terminal; 31. a second current limiting unit; 32. a second signal acquisition management unit; 33. a second contact; 34. a double-touch double-bridge switch; 101. a first switch; 111. a first coil; 121. a first link bridge; 131. a first contact; 141. a first position sensing element; 102. a second switch; 112. a second coil; 122. a second link bridge; 132. a second contact; 142. a second position sensing element; 160. a frame; 151. a first mounting seat; 152. a second mounting seat; 35. a first contact; 36. a second electronic switch; 37. a second communication interface; 38. a second management power input; 60. a surge suppressor; 61. an energy storage matrix; 62. an anti-reverse switch assembly; 63. a charging terminal; 64. a communication unit; 65. an arithmetic unit; 66. an energy scheduling unit; 67. a matrix battery management and energy scheduling system; 68. and (4) a central management system.
Detailed Description
The present invention is described in detail below with reference to specific embodiments in order to make the concept and idea of the present invention more clearly understood by those skilled in the art. It is to be understood that the embodiments presented herein are only a few of all embodiments that the present invention may have. Those skilled in the art who review this disclosure will readily appreciate that many modifications, variations, or alterations to the described embodiments, either in whole or in part, are possible and within the scope of the invention as claimed.
In this document, the term "embodiment" does not imply that the pertinent description applies to only one particular embodiment, but rather that the description may apply to additional embodiment(s). Those of skill in the art will understand that any of the descriptions given herein for one embodiment can be combined with, substituted for, or combined with the descriptions of one or more other embodiments to produce new embodiments, which are readily apparent to those of skill in the art and are intended to be within the scope of the present invention.
Example 1: referring to fig. 1, a battery management system including an anti-reverse parallel switch assembly according to the present embodiment includes a battery, a surge suppressor 60, an energy storage matrix 61, an anti-reverse switch assembly 62 and a matrix battery management and energy scheduling system 67, a plurality of batteries are connected in series to form a battery string, a connection end of the battery string and a connection end of the anti-reverse switch assembly 62 are connected in series to form a battery cluster, a positive electrode and a negative electrode of the energy storage matrix 61 are electrically connected to a connection end of the matrix battery management and energy scheduling system 67, respectively, the matrix battery management and energy scheduling system 67 includes a charging end 63, a communication unit 64, an arithmetic unit 65, an energy scheduling unit 66 and a central management system 68, a connection end of the communication unit 64 is electrically connected to a connection end of the central management system 68, the other end of the central management system 68 is connected to the charging end 63, the central management system 68 is communicatively connected to the anti-reverse switch assembly 62 in the plurality of battery clusters, the anti-reverse switch assembly 62 is in communication connection with the battery string, and the connection ends of the surge suppressor 60 are respectively connected in parallel with the connection ends of the plurality of battery clusters.
Example 2: referring to fig. 2, according to the battery management system including the anti-reverse parallel switch assembly of the present embodiment, the anti-reverse switch assembly 62 includes a first power terminal 7, a first electronic switch 8, a first signal acquisition management unit 9, a main channel switch 10, a first current limiting unit 11, a temperature sampling block 12, a first communication interface 13 and a first management power input 14, a connection end of the first power terminal 7 is connected in series with a connection end of the main channel switch 10, a connection end of the first electronic switch 8 is connected in series with a connection end of the first current limiting unit 11, a connection end of the first electronic switch 8 and a connection end of the first current limiting unit 11 are connected in parallel with a connection end of the main channel switch 10, a connection end of the first signal acquisition management unit 9 is electrically connected with the main channel switch 10 and the first electronic switch 8, a connection end of the first signal acquisition management unit 9 is electrically connected with a connection end of the first communication interface 13 and the first management power input 14, the number of the first electronic switches 8 is two, and the connecting ends of the two first electronic switches 8 are connected in series.
Example 3: referring to fig. 3, according to the battery management system including the anti-reverse parallel switch assembly of the present embodiment, the anti-reverse switch assembly 62 includes a second power terminal 30, a second current limiting unit 31, a second signal acquisition management unit 32, a double-touch double-bridge switch 34, a diode, a second electronic switch 36, a second communication interface 37 and a second management power input 38, the double-touch double-bridge switch 34 includes a contact one 35 and a contact two 33, a connection end of the contact one 35 is connected in parallel with a connection end of the contact two 33, a connection end of the second power terminal 30 is connected in series with a connection end of the contact one 35, a connection end of the diode is connected in series with a connection end of the contact two 33 and is connected in parallel with a connection end of the contact one 35, a connection end of the second electronic switch 36 is connected in series with a connection end of the second current limiting unit 31 and then is connected in parallel with a connection end of the contact one 35, connection ends of the second signal acquisition management unit 32 are respectively connected in parallel with the double-touch double-bridge switch 34, The terminals of contact one 35, the diode, the second electronic switch 36, the second communication interface 37 and the second management power input 38 are electrically connected.
Example 4: referring to fig. 4, according to the battery management system including the anti-reverse parallel switch assembly of the present embodiment, the two-touch two-bridge switch 34 includes a first switch 101, a second switch 102, and a frame 160:
the first switch 101 includes a first coil 111, a first linkage bridge 121, a first contact 131 and a first position sensing element 141, and connection terminals of the first coil 111, the first linkage bridge 121, the first contact 131 and the first position sensing element 141 are electrically connected;
the second switch 102 includes a second coil 112, a second link bridge 122, a second contact 132 and a second position sensing element 142, and the connection terminals of the second coil 112, the second link bridge 122, the second contact 132 and the second position sensing element 142 are electrically connected;
the frame 160 includes a first mount 151 and a second mount 152, and the first switch 101 and the second switch 102 are respectively mounted inside the first mount 151 and the second mount 152.
According to the present embodiment, the on/off of the switch and the triggering of the position sensing element are simultaneously realized by the link bridge, which is advantageous for increasing the function of the double-touch double-bridge switch 34, and in addition, the two switches are mounted together by the frame 160 to form the double-touch double-bridge switch 34, which is advantageous for increasing the compactness of the entire circuit structure requiring the two switches, and facilitating the wiring and mounting of the entire circuit.
In one embodiment, the coil may be a winding formed by winding mutually insulated wires, and may be classified by the properties of a magnetizer, the coil may be classified into an air core coil, a ferrite coil, an iron core coil, a copper core coil, and the like, the coil may be classified by the properties of operation, the coil may be classified into an antenna coil, an oscillation coil, a choke coil, a trap coil, a deflection coil, and the like, and the coil may be classified by the structure of the wire winding, and the coil may be classified into a single-layer coil, a multi-layer coil, a honeycomb coil, a superimposed coil, and the like, wherein the superimposed coil may be a coil formed by winding two or more wires.
In an embodiment, the contact may refer to a structure capable of respectively implementing connection and disconnection of a circuit through contact and disconnection of two conductive components, and according to different movement modes of the contact, the contact may be divided into a contact composed of a moving contact and a static contact (the moving contact moves to be in contact with the static contact), a contact composed of two moving contacts (the two moving contacts approach each other until being in contact), a contact composed of a moving contact and two static contacts (the moving contact moves between the two static contacts), and the like, and according to different contact structures, the contact may be divided into an a-type contact, a b-type contact, and a c-type contact, wherein the a-type contact may refer to a normally open contact, that is, in a normal state, the two contacts constituting the contact are separated, and the contact is contacted after a switch button is pressed; the b-type contact can be a normally closed contact, namely, in a normal state, two contact terminals forming the contact are contacted, and the contact is disconnected when a switch button is pressed; the c-type contact can be characterized by comprising two fixed contacts and a moving contact, wherein the moving contact moves between the two fixed contacts, and when the moving contact is contacted with one fixed contact, a circuit is disconnected, and when the moving contact is contacted with the other fixed contact, the circuit is connected.
In one embodiment, the linkage bridge may refer to an intermediate transmission member capable of driving or achieving linkage of two or more members, such as an intermediate member capable of achieving linkage of the contact and the position sensing element (i.e., simultaneous actuation of the contact and the position sensing element), and in one embodiment, the linkage bridge may refer to an elongated rod-shaped member having one end connected to the contact and the other end connected to the position sensing element, the translational movement of the rod-shaped member simultaneously causing movement of the contact and triggering of the position sensing element; or a pivotable member, one side of the pivot point is connected with the contact, the other side is connected with the position sensing element, and the pivoting of the pivotable member causes the movement of the contact and the triggering of the position sensing element; it may also refer to a resilient member having a resiliently movable portion that simultaneously connects the contacts and the position sensing element, which when moved, simultaneously causes movement of the contacts and activation of the position sensing element.
In one embodiment, the position sensing element may refer to an element having a position sensing function and capable of performing a corresponding action or response according to sensed position information, in one embodiment, the position sensing element is independent of the contact, that is, the reaction of the contact to the movement of the linkage bridge does not belong to the reaction of the position sensing element, in one embodiment, the position sensing element may be used for sensing the position or the action of the linkage bridge and performing a corresponding reaction or response according to the position change or the movement state of the linkage bridge, in one embodiment, the position sensing element may refer to a micro switch, in which case, a slight movement of the linkage bridge triggers the reaction of the micro switch, resulting in an on or off action of the micro switch; it may also refer to a proximity switch, in which case the movement of the ganged bridge towards or away from the proximity switch causes a reaction of the proximity switch, causing the proximity switch to take the action of making or breaking the circuit; the linkage bridge can also be a position sensor, in this case, the movement of the linkage bridge is sensed by the position sensor, and the position sensor sends different signals to a certain control circuit according to different movements of the linkage bridge; the linkage bridge control system can also be a camera, in this case, the motion of the linkage bridge is shot by the camera, the camera transmits the motion image of the linkage bridge to the control center, and the control center sends different instructions according to different actions of the linkage bridge.
In one embodiment, the coil is powered on to drive the linkage bridge, which may mean that a magnetic field generated after the coil is powered on acts on the linkage bridge to enable the linkage bridge to move; or the magnetic field generated after the coil is electrified passes through the iron core, so that the iron core is magnetized, and magnetic attraction force aiming at the linkage bridge is generated, so that the linkage bridge moves; the magnetic field that produces after the coil circular telegram can also be through the iron core for the iron core is magnetized, produces the magnetic attraction to a driving medium, makes the driving medium take place the motion, and the motion conduction of driving medium to the linkage bridge makes the linkage bridge take place the motion then.
In one embodiment, the linkage bridge drives the contact to realize contact or disconnection, which may mean that the movement of the linkage bridge causes the movement of the relevant part of the contact, and the movement of the contact part causes the contact to generate a contact or disconnection action capable of causing the circuit to be switched on or switched off; the movement of the linkage bridge can also cause a transmission component to move, and the movement of the transmission component causes the moving contact of the contact to move, so that the moving contact is contacted with or separated from the fixed contact; the linkage bridge may be operatively connected to two movable contacts of the contact, and movement of the linkage bridge causes the two movable contacts to move toward or away from each other, thereby causing the contact to be contacted or separated.
In an embodiment, the position sensing element is triggered by the linkage bridge, which may mean that the linkage bridge causes the position sensing element to generate a reaction, and in an embodiment, the position sensing element is triggered by the linkage bridge, which may be implemented by moving the linkage bridge to a position near the position sensing element, and sensing that the linkage bridge enters a sensing range by the position sensing element, so as to generate a corresponding reaction action; or the linkage bridge moves to a part contacting or pushing the position sensing element, the part converts the contact or pushing of the linkage bridge into a corresponding signal and transmits the signal to the position sensing element, and the position sensing element makes a corresponding reaction action; it is also possible that the position sensing element monitors the link bridge in real time, and once any movement of the link bridge occurs, the position sensing element generates a corresponding reaction action.
In an embodiment, the coil is powered on to drive the linkage bridge, so that the linkage bridge drives the contact to be contacted or separated, and the linkage bridge triggers the position sensing element, which may mean that the linkage bridge moves after the coil is powered on, such movement of the linkage bridge causes a part or a moving contact of the contact to move, so that the contact is contacted or separated, and the movement of the linkage bridge also causes the position sensing element to generate a certain reaction action.
In one embodiment, the frame 160 may refer to a structure for supporting and/or protecting the whole dual-contact dual-bridge switch 34, which is a separate part of the dual-contact dual-bridge switch 34, and not a more macroscopic structure, such as a whole circuit, a battery management system or a rack or housing of a battery module, and in one embodiment, the mounting seat may refer to a structure, such as a platform, a recess, a bracket, a housing, etc., capable of allowing an object to be mounted to a certain position and performing corresponding supporting and/or protecting functions.
In one embodiment, the frame 160 includes the first mounting seat 151 and the second mounting seat 152, which may mean that the frame 160 has a portion for mounting two switches in the whole structure, rather than the mounting structures of the two switches being separated from each other and regarded as one frame 160, in one embodiment, the frame 160 includes the first mounting seat 151 and the second mounting seat 152, which may mean that the two mounting seats constitute an integral part of one frame 160 and the two mounting seats are connected together through other portions of the frame 160, and in one embodiment, the frame 160 includes the first mounting seat 151 and the second mounting seat 152, which may be realized by having two recesses for mounting two switches in the rigid whole structure of the frame 160, which are surrounded by the main body portion of the frame 160 structure, and which form the two mounting seats; alternatively, the plurality of rod-shaped support structures of the frame 160 may enclose a space sufficient to accommodate two switches, which are installed in the space and fixedly connected to the support structures of the frame 160 in multiple directions, and the space forms two mounting seats; alternatively, the frame 160 may be a sealed housing, the bottom of the housing has two bases, two switches are respectively mounted on the two bases and surrounded by the sealed housing, and the two bases and the space above the two bases form two mounting seats.
In an embodiment, the switches are installed in the installation base, which may mean that each component of the switches is fixed or connected to a corresponding position preset for the installation base, so that the switches can be stably installed in the installation base and perform a predetermined function, in an embodiment, the first switch 101 and the second switch 102 are respectively installed in the first installation base 151 and the second installation base 152, which may mean that the first switch 101 is installed in the first installation base 151 and the second switch 102 is installed in the second installation base 152.
The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 3 and may include one or more features of one or more of all of the embodiments described above.
According to the embodiment, the first position sensing element 141 includes a first micro switch, the first coil 111, the first linkage bridge 121 and the connection end of the first micro switch are electrically connected, when the first coil 111 drives the first linkage bridge 121 to move to the end position, the first linkage bridge 121 triggers the first micro switch, so that the first micro switch disconnects the circuit of the first coil 111; the second position sensing element 142 includes a second micro switch, the second coil 112, the second linkage bridge 122 and the connection end of the second micro switch are electrically connected, when the second coil 112 drives the second linkage bridge 122 to move to the end position, the second linkage bridge 122 triggers the second micro switch, so that the second micro switch disconnects the circuit of the second coil 112.
The double-touch double bridge switch 34 according to the present embodiment senses the movement of the link bridge through the micro switch, facilitates sensing the position of the link bridge through low cost, and facilitates improving the sensitivity of position detection, and also facilitates saving of electric power supplied to the coil according to the disconnection of the circuit of the coil when the link bridge moves to the end position.
In one embodiment, the micro switch may be a switch having a push pin capable of sensing external micro motion, a relatively small contact pitch and a relatively high sensitivity, which is also called a sensitive switch or a snap switch, and is classified by volume into a general type, a small type and a micro type, and classified by a dividing form, the micro switch may be a single type, a double type or a multiple type, and classified by a protective property, the micro switch may be a waterproof type, a dustproof type or an explosion-proof type, and classified by a dividing capability, the micro switch may be a general type, a direct current type, a micro current type or a large current type, and the micro switch may be a general type, a high temperature resistant type or a super high temperature resistant ceramic type, and classified by a pin form, the micro switch may be a button type, a reed roller type, a lever roller type, a short moving arm type or a long moving arm type.
In one embodiment, the end position may refer to an end position or a dead point position of the range of motion, for example, a piston moving in a cylinder, where an upper dead point and a lower dead point are located at the end position, and the object may have an end position, for example, a highest point to which the end of the swing link can swing; there may be two end positions, such as a rod-like structure that moves back and forth lengthwise, to the farthest and closest points to which one end can move; there may be three end positions, for example three corner positions on a track to which a trolley moving on a triangular track can move; there may be a plurality of end positions, for example a knob capable of rotating three hundred and sixty degrees around a central point, each of which movement positions is possible as an end position.
In one embodiment, the movement of the linkage bridge to the end position may refer to the movement of the linkage bridge to the end position or its vicinity within the movement range, and in one embodiment, the coil drives the linkage bridge to the end position, which may refer to the magnetic field generated by the coil directly or indirectly acting on the linkage bridge to move the linkage bridge to the end position, and in one embodiment, the coil drives the linkage bridge to the end position, which may be implemented by the magnetic field generated by the coil directly acting on the linkage bridge to move the linkage bridge to the end position; or the magnetic field generated by the coil passes through the iron core, so that the iron core is magnetized, magnetic attraction force aiming at the linkage bridge is generated, and the linkage bridge moves to the tail end position; the magnetic field generated by the coil passes through the iron core, so that the iron core is magnetized, magnetic attraction to a transmission piece is generated, the transmission piece moves, the movement of the transmission piece is transmitted to the linkage bridge, and then the linkage bridge moves to the tail end position.
In an embodiment, the microswitch disconnects the circuit of the coil, which may mean that the microswitch is connected to the circuit supplying power to the coil, and the microswitch causes the circuit of the coil to be disconnected when the state switching occurs, and in an embodiment, the microswitch disconnects the circuit of the coil, which may be implemented by directly connecting the microswitch to the circuit of the coil, and changing the operation state of the microswitch from the on state to the off state, thereby causing the circuit of the coil to be disconnected; it is also possible that the microswitch is connected to a further circuit associated with the coil circuit, the element of which further circuit is able to control the coil circuit to be switched off after a transition of the operating state of the microswitch (from on to off or from off to on).
In an embodiment, when the coil drives the linkage bridge to move to the end position, the linkage bridge triggers the micro switch to disconnect the circuit of the coil, which may mean that the linkage bridge is driven by a magnetic field generated by the coil to move toward the end position, and when the linkage bridge reaches the end position, the linkage bridge can move a sensitive element (such as a press pin or a reed) of the micro switch, so as to switch the state of the micro switch, and then disconnect the circuit for supplying power to the coil.
The following describes a specific example of the embodiment of fig. 4, which may include one or more features of one or more of all of the embodiments described above, in accordance with another embodiment of the present invention.
According to the embodiment, the first position sensing element 141 includes a first position sensor, the first coil 111, the first linkage bridge 121 and the connection end of the first position sensor are electrically connected, when the first coil 111 drives the first linkage bridge 121 to move to the end position, the first linkage bridge 121 triggers the first position sensor, so that the first position sensor sends a disconnection signal to disconnect the circuit of the first coil 111; the second position sensing element 142 includes a second position sensor, the connection terminals of the second coil 112, the second linkage bridge 122 and the second position sensor are electrically connected, and when the second coil 112 drives the second linkage bridge 122 to move to the end position, the second linkage bridge 122 triggers the second position sensor, so that the second position sensor sends a disconnection signal to disconnect the circuit of the second coil 112.
The double-touch double-bridge switch 34 according to the present embodiment senses the movement of the link bridge through the position sensor, which is advantageous for improving the accuracy of the determination of the position of the link bridge, and also, is advantageous for saving the electric power supplied to the coil according to the circuit that sends the disconnection signal to disconnect the coil when the link bridge moves to the end position.
In one embodiment, the position sensor may be a sensor capable of sensing a position or a position change of a measured object and converting the position or the position change into a signal capable of being output, and the position sensor may be generally classified into a contact sensor and a proximity sensor, where the contact sensor may be a sensor in which the measured object needs to contact a certain portion of the sensor to enable the sensor to react, and the sensor includes a travel switch, a two-dimensional matrix position sensor, and the like; the proximity sensor may be a sensor that can react with a measured object only when the measured object enters a certain setting range of the sensor, and includes an electromagnetic type, a photoelectric type, a differential transformer type, an eddy current type, a capacitor type, a reed switch, a hall type, and the like.
In an embodiment, the linkage bridge triggers the position sensor, which may mean that the position sensor senses the existence of the linkage bridge at a certain position or the change of the motion state of the linkage bridge, so as to cause the position sensor to react; or, the linkage bridge moves, so that the position sensor senses the position change of the linkage bridge, and then the reaction is made; it is also possible that the link bridge enters the sensing range of the position sensor and continues to move within this range, and the position sensor senses the movement of the link bridge, thereby reacting.
In one embodiment, the open signal may be a signal capable of directly or indirectly opening a specific circuit, in one embodiment, the position sensor sends an open signal, in another embodiment, the position sensor sends a specific signal according to the sensed position or position change, the signal can cause the specific circuit to be opened, in another embodiment, the position sensor sends an open signal to open the circuit of the coil, in yet another embodiment, the position sensor sends a signal, the signal is directly or indirectly transmitted to a device capable of controlling the circuit of the coil to be opened and closed, the device opens the circuit of the coil according to the signal or a received instruction, in another embodiment, the position sensor sends an open signal to open the circuit of the coil, in another embodiment, the position sensor sends a signal, the signal is transmitted to a controller, and the controller sends a circuit opening instruction to a switch connected in the circuit of the coil according to the signal, the switch executes the disconnection action according to the instruction; the position sensor may transmit a current signal, the current signal may be directly received by a switch connected to the coil circuit, and the switch may generate an opening operation upon receiving the current signal.
In an embodiment, when the coil drives the linkage bridge to move to the end position, the linkage bridge triggers the position sensor, so that the position sensor sends a disconnection signal to disconnect the circuit of the coil, which may mean that the linkage bridge is driven by a magnetic field generated by the coil to move towards the end position, and when the end position is reached, the position sensor senses a position change of the linkage bridge or the linkage bridge, so as to send a specific signal, and the signal is directly or indirectly transmitted to a device capable of controlling the on-off of the coil circuit, so that the device is switched in state, and the circuit of the coil is disconnected.
The concepts, principles and concepts of the invention have been described above in detail in connection with specific embodiments (including examples and illustrations). It will be appreciated by persons skilled in the art that embodiments of the present invention are not limited to the specific forms set forth herein, and that many modifications, alterations, and equivalents of the steps, methods, apparatus, and components described in the above embodiments may be made by those skilled in the art after reading this specification, and that such modifications, alterations, and equivalents are to be considered as falling within the scope of the present invention. The scope of the invention is only limited by the claims.
Claims (6)
1. A battery management system comprising an anti-reverse parallel switch assembly comprises a battery, a surge suppressor (60), an energy storage matrix (61), an anti-reverse switch assembly (62) and a matrix battery management and energy scheduling system (67), and is characterized in that: a plurality of batteries are connected in series to form a battery string, the connecting end of the battery string and the connecting end of the anti-reverse switch component (62) are connected in series to form a battery cluster, the anode and the cathode of the energy storage matrix (61) are respectively and electrically connected with the connecting end of the matrix battery management and energy scheduling system (67), the matrix battery management and energy scheduling system (67) comprises a charging terminal (63), a communication unit (64), an arithmetic unit (65), an energy scheduling unit (66) and a central management system (68), the connecting end of the communication unit (64) is electrically connected with the connecting end of the central management system (68), the other end of the central management system (68) is connected with a charging end (63), the central management system (68) is in communication connection with an anti-reverse switch assembly (62) in a plurality of battery clusters, the anti-reverse switch assembly (62) is in communication connection with the battery strings, and the connection ends of the surge suppressors (60) are respectively connected with the connection ends of the plurality of battery clusters in parallel.
2. The battery management system including an anti-parallel switch assembly of claim 1, wherein: the anti-reverse switch assembly (62) comprises a first power terminal (7), a first electronic switch (8), a first signal acquisition management unit (9), a main channel switch (10), a first current limiting unit (11), a temperature sampling block (12), a first communication interface (13) and a first management power input (14), wherein the connecting end of the first power terminal (7) is connected with the connecting end of the main channel switch (10) in series, the connecting end of the first electronic switch (8) is connected with the connecting end of the first current limiting unit (11) in series, the connecting ends of the first electronic switch (8) and the first current limiting unit (11) are connected with the connecting end of the main channel switch (10) in parallel, and the connecting end of the first signal acquisition management unit (9) is respectively electrically connected with the main channel switch (10) and the first electronic switch (8), the connecting end of the first signal acquisition management unit (9) is electrically connected with the connecting ends of the first communication interface (13) and the first management power supply input (14), the number of the first electronic switches (8) is two, and the connecting ends of the two first electronic switches (8) are connected in series.
3. The battery management system including an anti-parallel switch assembly of claim 1, wherein: the anti-reverse switch assembly (62) comprises a second power terminal (30), a second current limiting unit (31), a second signal acquisition management unit (32), a double-touch double-bridge switch (34), a diode, a second electronic switch (36), a second communication interface (37) and a second management power input (38), wherein the double-touch double-bridge switch (34) comprises a first contact (35) and a second contact (33), the connecting end of the first contact (35) is connected with the connecting end of the second contact (33) in parallel, the connecting end of the second power terminal (30) is connected with the connecting end of the first contact (35) in series, the connecting end of the diode is connected with the connecting end of the second contact (33) in series and is connected with the connecting end of the first contact (35) in parallel, the connecting end of the second electronic switch (36) is connected with the connecting end of the second current limiting unit (31) in series and is then connected with the connecting end of the first contact (35) in parallel, and the connecting end of the second signal acquisition management unit (32) is respectively electrically connected with the connecting ends of the double-contact double-bridge switch (34), the first contact (35), the diode, the second electronic switch (36), the second communication interface (37) and the second management power supply input (38).
4. A battery management system including an anti-reverse-parallel switch assembly according to claim 3, wherein: the double-touch double-bridge switch (34) comprises a first switch (101), a second switch (102) and a frame (160):
the first switch (101) comprises a first coil (111), a first linkage bridge (121), a first contact (131) and a first position sensing element (141), and the connection ends of the first coil (111), the first linkage bridge (121), the first contact (131) and the first position sensing element (141) are electrically connected;
the second switch (102) comprises a second coil (112), a second linkage bridge (122), a second contact (132) and a second position sensing element (142), and the connection ends of the second coil (112), the second linkage bridge (122), the second contact (132) and the second position sensing element (142) are electrically connected;
the frame (160) comprises a first mounting seat (151) and a second mounting seat (152), and the first switch (101) and the second switch (102) are respectively mounted inside the first mounting seat (151) and the second mounting seat (152).
5. The battery management system including an anti-parallel switch assembly of claim 4, wherein:
the first position sensing element (141) comprises a first microswitch, and the first coil (111), the first linkage bridge (121) and the connecting end of the first microswitch are electrically connected;
the second position sensing element (142) comprises a second micro switch, and the connecting ends of the second coil (112), the second linkage bridge (122) and the second micro switch are electrically connected.
6. The battery management system including an anti-parallel switch assembly of claim 4, wherein:
the first position sensing element (141) comprises a first position sensor, and the first coil (111), the first linkage bridge (121) and the connecting end of the first position sensor are electrically connected;
the second position sensing element (142) comprises a second position sensor, and the second coil (112), the second linkage bridge (122) and the connecting end of the second position sensor are electrically connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011273089.0A CN114498800A (en) | 2020-11-13 | 2020-11-13 | Battery management system comprising anti-reverse parallel switch assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011273089.0A CN114498800A (en) | 2020-11-13 | 2020-11-13 | Battery management system comprising anti-reverse parallel switch assembly |
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| CN114498800A true CN114498800A (en) | 2022-05-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602664A (en) * | 2017-01-05 | 2017-04-26 | 清华大学深圳研究生院 | Battery pack with dynamically-adjustable connection topology and implementation method thereof |
| KR102064585B1 (en) * | 2019-03-25 | 2020-01-09 | 에이피이엘(주) | Battery condition control apparatus using battery protection circuit |
| CN213782913U (en) * | 2020-11-13 | 2021-07-23 | 智一新能源发展有限公司 | Battery management system comprising anti-reverse parallel switch assembly |
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2020
- 2020-11-13 CN CN202011273089.0A patent/CN114498800A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602664A (en) * | 2017-01-05 | 2017-04-26 | 清华大学深圳研究生院 | Battery pack with dynamically-adjustable connection topology and implementation method thereof |
| KR102064585B1 (en) * | 2019-03-25 | 2020-01-09 | 에이피이엘(주) | Battery condition control apparatus using battery protection circuit |
| CN213782913U (en) * | 2020-11-13 | 2021-07-23 | 智一新能源发展有限公司 | Battery management system comprising anti-reverse parallel switch assembly |
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