SU1307518A1 - D.c.electric drive - Google Patents

Abstract

The invention relates to electrical engineering and can be used in devices with autonomous power sources. The increase in reliability is achieved due to the fact that a fifth controllable key has been entered into the device. 11, two controllable keys of individual switching 12 and 13 and an additional diode 14. The device provides a large number of operating modes of electric motors and batteries, which can be used in various emergency situations. 1 il. W 6 I (L Jxi 00 o sl ae eo 74) J

Description

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The invention relates to electrical engineering and may find application in devices with autonomous power sources,

The aim of the invention is to increase the reliability of the drive and expand the scope by increasing the number of operating modes.

The drawing shows a diagram of the device

The DC electric drive contains two electric motors 1 and 2, in which the beginnings and ends of the core coils are interconnected through the first 3 and second 4 controlled keys, two batteries 5 and 6, connected in series with each other through the third controlled key 7,

W; 1 pin output of the first battery 5 is connected to the beginning of the main winding of the first electric motor 1 and through the first diode 8 to the positive output of the second battery 6, the negative output of which is connected to the end of the main winding of the second electric motor 2 and through sequentially connected fourth controlled the key 9 and the second diode 10 are with the negative terminal of the first battery 5.

A fifth control key 11, two controllable keys of individual switching 12 and 13 of electric motors 1 and 2, and an additional diode 14 are inserted into the device,

A fifth control key 11 is connected between the first diode 8 and the positive terminal of the first battery 5, the additional diode 14 is connected in the conductive direction between the end of the main winding of the first electric motor 1 and the beginning of the second core 2, and the control keys of individual activation 12 and 13 electric motors 1 and 2 are connected between the anode and the cathode of the additional diode 14 and respectively the common points of the fourth controlled key 9 with the second diode 10 and the fifth controlled key 11 with the first diode 8:

The device works as follows.

Suppose that, under load, the voltage at the battery outputs of the batteries is the same and equal to U, and the voltage of the motor power supplies is also odd and equal to Ug, and the equality is fulfilled, Then

five

0

five

0 5 0

five

it can be assumed that with a voltage on the motor bark equal to 2U, the rotational speed of the core is equal to n, with a voltage Ug 0.5 p, and with a voltage 0.5 Ug 0.23 p.

When the control switches of the individual activation 12 or 13 are closed, the first electric motor 1 is connected to the first battery 5, and the second 2 via the second battery 6, the rotational speed of the electric motors in these cases is equal to 0.5%

When the first 3 and fourth 9 controlled keys are closed, the second electric motor 2 is connected to the first battery 5, and when the second 4 and 5 11 controlled keys are closed, the first electric motor 1 is connected to the second battery 6. The rotation speed of the electric motors in these cases x is also 0.5 p,

When the fourth (second 11) controlled keys of the first 5 (second 6) keys are closed, the battery is connected to series-connected electric motors 1 and 2, which in this case rotate at a speed of 0.25p.

When the controlled keys 3,12 and 9 are simultaneously closed, the first battery 5 is connected to motors 1 and 2 connected in parallel, and when the controlled keys 4, 13 and 11 are simultaneously closed, the second 6, the rotational speed of the motors in these cases is equal to 0.5p,

When the controlled keys 7 and 4 are closed, the series-connected batteries 5 and 6 are connected to the first electric motor I, and when the controlled keys 7 and 3 are closed, to the second 2. The rotation speed of the electric motors in these cases is equal to n.

When one control key 7 is closed, the series-connected batteries 5 and 6 are connected to the series-connected motors 1 and 2. The rotational speed of the latter in this case is 0.5 p.

When the controllable keys 3, 4 and 7 are closed, the successively connected batteries 5 and 6 are connected to parallel-connected

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motor 1 and 2, the speed of which in this case is equal to p.

With simultaneous closure of the controlled keys 4, 11 and 12, the parallel-connected batteries 5 and 6 are connected to the first electric motor 1, and with the simultaneous short circuit of the controlled keys 3, 9 and 13 to the second 2. The rotation speed of the electric motors in these cases equal to 0.5 p.

With the simultaneous closure of the controllable switches 9 and 11, the serially connected electric motors 1 and 2 are connected to the parallel connected battery batteries 5 and 6, and with the simultaneous tightening of the controllable keys 3, 4, 9 and 11, the parallel connected electric motors 1 and 2 to parallel-connected rechargeable batteries m 5 and 6. In the first case, the speed of rotation of electric motors 1 and 2 is 0.25p, and the second is 0.5p.

Finally, when the controlled keys 3, 12, and 7 (4, 13, and 7) are simultaneously locked, the first 1 (second 2) motor is connected to the first 5 (second 6) battery, and the second 2 (first 1) to serially connected battery battery m 5 and 6. In this case, the rotation speed of the first 1 (second 2) electric motor is 0.5 n, and the second 2 (first 1) - n.

Thus, the device provides a large number of operating modes of electric motors and batteries, which can be used in various emergency situations.

Editor A. Gulko

Compiled by V. Pospelov Tehred V. Kadar

Order 1638/52 Circulation 661

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

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Claims (1)

Invention Formula A DC motor that contains two electric motors, the beginnings and ends of the core windings of which are interconnected via the first and second controlled keys, two batteries, connected in series with each other via the third controlled key, while the positive terminal of the first one is connected to the beginning of the main winding of the first electric motor and through the first diode - with the positive terminal of the second battery, the negative terminal of which is connected to the end of the secondary winding of the second electric motor and afterwards the fourth controlled key and the second diode are connected with the negative terminal of the first battery, characterized in that, in order to increase reliability and expand the scope by increasing the number of operating modes, a fifth controlled key and two controlled keys are introduced into it individual switching of the electric motors and an additional diode, the fifth control key is connected between the first diode and the positive terminal of the first battery, the additional diode is connected in the conducting direction forward end of the anchor coil of the first motor and the start of the second anchor Wrap, and the individual keys of the motor connected between the anode and the cathode of the diode and the additional common points, respectively, the fourth controllable switch with a second diode and the fifth controllable switch to the first diode. Proofreader L. Patay Subscription