RU2088016C1 - Device for charging car storage battery from alternating current supply line - Google Patents

Device for charging car storage battery from alternating current supply line Download PDF

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Publication number
RU2088016C1
RU2088016C1 RU94021747A RU94021747A RU2088016C1 RU 2088016 C1 RU2088016 C1 RU 2088016C1 RU 94021747 A RU94021747 A RU 94021747A RU 94021747 A RU94021747 A RU 94021747A RU 2088016 C1 RU2088016 C1 RU 2088016C1
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Russia
Prior art keywords
connected
battery
network
diode
contacts
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RU94021747A
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Russian (ru)
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RU94021747A (en
Inventor
О.И. Новиков
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Уральское отделение Всероссийского научно-исследовательского института железнодорожного транспорта
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Priority to RU94021747A priority Critical patent/RU2088016C1/en
Publication of RU94021747A publication Critical patent/RU94021747A/en
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Abstract

FIELD: electric engineering. SUBSTANCE: device has two diodes and reactor, and switch which has two groups of n+1 contacts. Reactor winding has n taps. EFFECT: optimal charging current. 1 dwg

Description

 The invention relates to the field of rechargeable batteries.

 Technical solutions have been adopted as analogues, which allow charging rechargeable batteries from an alternating voltage source (network). The device [1] consists of a diode shunted by a resistor and a resistor through which the rechargeable battery is connected to a single-phase AC voltage network. The disadvantages of this device is that the battery charge is accompanied by energy losses in the resistors of the device.

 Devices [2, 3] are made on the basis of diodes shunted by capacitors. Replacing resistors with capacitors reduces energy loss. When charging large-capacity batteries, a large number of capacitors are required, which have a large mass and occupy a large volume.

 As the closest prototype adopted device [4] which is designed to charge batteries from a single-phase AC voltage network and is made in the form of a charging circuit from a reactor with two windings and a diode. One winding of the reactor is connected in series with the diode and forms a charging circuit through which the rechargeable battery is connected to the network. The second winding is shunted through the diode by a resistor. The disadvantages of this device: energy loss in the resistor, the lack of matching current network and battery.

 The invention consists in the following. Traction and starter batteries for various vehicles provide their movement (electric forklifts, electric carts) and start-up of internal combustion engines (diesel locomotives, diesel trains, road vehicles, isothermal cars) and have a voltage of 6, 12, 24, 48, 75, 110 B. During the operation of such batteries, it becomes necessary to charge them from an alternating voltage network, the value of which is 220, 380 V and exceeds the battery voltage. Traction batteries are charged from the alternating voltage network after the vehicle has ended and the battery capacity has decreased. Starter batteries are charged from the network during periodically performed test and training cycles. To obtain the required value of the charging current of batteries whose voltage is less than the mains voltage, use chargers made on the basis of rectifiers and transformers or current-limiting circuits (capacitors, resistors, reactors) with diodes.

 The device of the invention is based on a charging circuit, which consists of a first diode and a winding reactor, which has taps, contains a second diode and a switch. During the action of one half-wave of alternating voltage, the reactor stores energy and transfers it to the battery during the action of the second half-wave. The switch and the winding with taps allow you to set the desired ratio between the mains and battery currents. This provides high-capacity batteries with high current and low current consumption from the mains. It becomes possible to charge high-capacity batteries from low-power AC networks by performing the specified coordination of consumed and charging current. Reducing current consumption reduces energy loss in the network elements. As a result of this, optimization of the battery charge process is achieved, which determines the technical result of the invention.

 The drawing shows a circuit diagram of a charge device. This device has terminals 1 for connecting to a single-phase AC voltage network, a charging circuit from the first diode 2 and reactor 3, a switch 4, a second diode 5 and charges the battery 6. The reactor winding has the first 3.1, second 3.2 conclusions and n taps 3.3. The switch 4 is made with the first group of contacts 4.1 and the second group of contacts 4.2. The common pinout of contacts 4.1 (4.2) is connected to the network (to battery 6). Each contact group consists of n + 1 contacts. The switch 4 is made with the possibility of connecting to the network and the battery 6 a different number of turns of the winding of the reactor 3. With closed left contacts 4.1 and 4.2, the winding is connected to the battery 6 with all turns and their part to the network. When the right contacts 4.1 and 4.2 are closed, the winding is connected to the network by all turns and their part to the battery 6.

 The device operates in this order. Under the action of a half-wave of alternating voltage, the polarity of which coincides with the conducting direction of the diode 2, a current flows through the winding of the reactor 3 and energy is stored in its inductance. The diode 5 prevents the flow of current in the circuit of the battery 6. When the alternating voltage changes the polarity and becomes more than the voltage of the battery 6, the current in the circuit of the diode 2 also stops under the influence of the emf. self-induction of the winding, a current appears in circuit 5-6, the battery is charged and the energy stored in the inductance of the winding enters it. The battery continues to charge until its voltage exceeds the instantaneous value of the mains voltage. After that, the current in circuit 5-6 stops and a current appears in the circuit of diode 2. Next, the mains voltage changes polarity and the device repeats in the described sequence.

 The magnitude of the currents consumed from the network and used for charging depends on the position of the switch and, accordingly, on the number of turns in the winding of the reactor 3, which are connected to the network and to the battery. If more (less) turns are connected to the network (battery), then the network current is less (more) than the current of battery 6. This allows you to charge batteries whose charging current exceeds the permissible current of the network, and use a unified reactor to charge batteries of various capacities.

Claims (1)

  1.  A device for charging a vehicle’s battery from an alternating voltage network, comprising a charging circuit, which is made up of a series-connected reactor, a first diode connected to a network, and a second diode, characterized in that it is further provided with a switch with two groups of contacts made with common conclusions, and the reactor winding is made with n taps, and the general output of the contacts of the first group is connected to the network, and the individual conclusions of the contacts of this group are connected to the first output and by the leads of the reactor winding, the common terminal of the contacts of the second group is connected through the second diode to the pole of the battery, which is connected by the second pole to the first terminal of the reactor, and the individual terminals of the contacts of the second group are connected to the second terminal and to the leads of the reactor winding, while the conducting direction of the second diode does not coincide with the polarity of the battery voltage, and each group has n + 1 contact.
RU94021747A 1994-06-08 1994-06-08 Device for charging car storage battery from alternating current supply line RU2088016C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94021747A RU2088016C1 (en) 1994-06-08 1994-06-08 Device for charging car storage battery from alternating current supply line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94021747A RU2088016C1 (en) 1994-06-08 1994-06-08 Device for charging car storage battery from alternating current supply line

Publications (2)

Publication Number Publication Date
RU94021747A RU94021747A (en) 1996-06-10
RU2088016C1 true RU2088016C1 (en) 1997-08-20

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RU94021747A RU2088016C1 (en) 1994-06-08 1994-06-08 Device for charging car storage battery from alternating current supply line

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2682241C2 (en) * 2014-09-30 2019-03-18 ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи Method for charging starter battery of vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Здрок А.Г. Выпрямительные устройства стабилизации напряжения и заряда аккумуляторов. - 1988, с. 85, 86. 2. Авторское свидетельство СССР N 387482, кл. H 02 J 7/02, 1971. 3. Авторское свидетельство СССР N 577608, кл. H 02 J 7/02, 1975. 4. Авторское свидетельство СССР N 376841, кл. N 02 J 7/12, 1971. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2682241C2 (en) * 2014-09-30 2019-03-18 ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи Method for charging starter battery of vehicle

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Publication number Publication date
RU94021747A (en) 1996-06-10

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