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INVENTION
Patent of the Russian Federation RU2248656
BATTERY OF ELECTRIC ENERGY DOCUMENTS
The name of the inventor: Gruzdev AI (RU); Kuzovkov A.V.
The name of the patent owner: Gruzdev Alexander Ivanovich
Address for correspondence: 143000, Moscow Region, Odintsovo, ul. Sadovaya, 8, building 2, ap. 56, to AI Gruzdev
Date of commencement of the patent: 2002.12.06
When manufacturing secondary current sources, in particular, batteries based on lithium-ion batteries. A battery of electric energy storage devices connected via switches to a single electrical circuit has an input for connecting the charging device and feeding the control signals to the switch control device and one or more outputs for connecting the load to which, when the respective control signal is applied, Electric energy storage devices, when connected to the battery input they are connected in parallel, and when connected to the battery outputs they are connected in a serial or series-parallel circuit. When connected to a charger, an electronic element (for example, a resistor) or an electronic unit that limits or regulates its charge current is connected in series with each single energy store. The technical result is a reduction in the unbalance of drive voltages during the cycling of the battery.
DESCRIPTION OF THE INVENTION
The invention relates to the field of electrical engineering and can be used in the creation of secondary current sources.
The closest to the present invention is a current source comprising a plurality of identical single batteries connected in series and / or parallel to respective switches. These switches are activated by the central control unit in accordance with the requirements of the load [Pat. USA № 5461264, publ. 1995].
A disadvantage of the known current source when using rechargeable electric energy storage devices (single cells or modules of chemical accumulators or electrochemical capacitors) is the unbalance of the voltages of electric storage devices when cycling the current source.
The object of the invention is to provide a battery of electric energy storage devices that allows to reduce or almost completely eliminate the unbalance of the voltages of electric storage devices when the battery is cycled.
This technical result is achieved by:
A battery of electrical energy storage devices comprising a plurality of single electrical energy storage units or modules of several single electrical energy storage devices connected via switches to a single electrical circuit, and a switch control device that allows the single battery or modules to be recomputed in a battery electrical circuit in a serial, parallel or Series-parallel circuit, has an input for connecting the charger and supplying control signals to the switch control device and one or more outputs for connecting the load to which, when the respective control signal is applied alternately, single electrical energy stores or modules are connected by switches, They are connected to the input of the battery in a parallel circuit, and when connected to the battery outputs they are connected in a serial or series-parallel circuit.
In the battery of electric energy storage devices, when connected to the battery input, an electronic element or electronic unit is connected in series with each single energy store or module, limiting or regulating the value of the maximum charging current of single energy storage units or modules.
In a battery of electric energy storage devices, a resistor is used as an electronic element that limits the charging current of a single energy store or module.
In the battery of electric energy storage devices, resistors with a positive coefficient of resistance (posistors) are used to limit the charging current.
The battery of electric energy storage devices contains a battery status monitoring unit that uses resistors as charge current sensors of single energy storage units or modules.
In the battery of electric energy storage devices, electromechanical relays with contact groups for switching are used as switches.
In a battery of electric energy storage devices, each single energy store or module is re-connected by an electromechanical relay having two contact groups.
In a battery of electric energy storage devices, the number of single electrical energy storage devices or modules in a battery is numerically equal to the square of the number of battery exits, and the terminals of the same polarity of all battery outputs are combined.
The battery of electric energy storage devices has a built-in programmable microcontroller, which performs battery re-commutation by feeding control signals to the switch control device in accordance with the program programmed into it.
In a battery of electric energy storage devices, the microcontroller measures voltage on single electrical energy storage devices or modules.
Example of specific implementation
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The battery of 4 lithium-ion batteries is made according to the electrical scheme shown on the drawing. The battery has an input connector with contacts U in , U ypp , U (-) and an output connector with contacts U out, U (-) , in which the contacts U (-) are connected among themselves. The accumulators G1 ... G4 commute the electromagnetic relay Kx with two contact groups for switching Kx.1 and Kx.2, where x = 1 ... 4. All control windings of relays K1 ... K4 are connected in series and connected to the input connector. The battery uses a relay with normally closed contacts. In the drawing, the battery diagram is shown in the key position with the control signal U ypp applied - all the accumulators G1 ... G4 are connected in parallel to the input connector (U in, U (-) ). In the charging circuit of each battery, the resistors R1 ... R4, limiting the maximum charging current through the battery, are included. When the control signal is disconnected, the accumulators G1 ... G4 are connected in a serial circuit to the output connector (U out, U (-) ). |
CLAIM
1. A battery of electric energy storages comprising a plurality of single electrical energy storage devices connected via switches to a single electrical circuit, and a switch control device that allows the single circuit accumulators to be switched in a serial, parallel or series parallel circuit to the battery circuit, Characterized in that the battery has an input for connecting the charger and supplying control signals to the switch control device and one or more outputs for connecting the load to which, when a respective control signal is applied, a single electrical energy storage device is connected to the input of the battery, On a parallel circuit, and when connected to the battery outputs they are connected in a serial or series-parallel circuit.
2. The battery of electric energy storage devices according to claim 1, characterized in that, when connected to the battery input, an electronic element or electronic unit is connected in series with each single energy store or module, limiting or regulating the value of the maximum charging current of single energy storage units or modules.
3. The battery of electric power storage devices according to claim 2, characterized in that an electronic element is a resistor.
4. The battery of electric power storage devices according to claim 3, characterized in that it comprises a battery status monitoring unit that uses resistors as charging current sensors of single energy storage units or modules.
5. The battery of electric power storage devices according to claim 3, characterized in that resistors with a positive coefficient of resistance (posistors) are used.
6. A battery of electric power storage devices according to any one of claims 1 to 5, characterized in that electromechanical relays with contact groups for switching are used as switches.
7. The battery of electric power storage devices according to claim 6, characterized in that each single energy store or module is re-connected by one electromechanical relay having 2 contact groups.
8. The battery of electric power storage devices according to any one of claims 1 to 7, characterized in that the number of single electrical energy storage units or modules in the battery is numerically equal to the square of the number of battery exits and the terminals of the same polarity of all battery outputs are combined.
9. The battery of electric power storage devices according to any one of claims 1 to 8, characterized in that it has a built-in programmable microcontroller that re-switches the battery by applying control signals to the switch control device in accordance with the program programmed therein.
10. The battery of electric power storage devices according to claim 9, characterized in that the microcontroller measures the voltage on single electrical energy storage devices or modules.
print version
Published on February 18, 2007
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