CN218162241U - Starting circuit for multiple motors - Google Patents
Starting circuit for multiple motors Download PDFInfo
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- CN218162241U CN218162241U CN202123051171.1U CN202123051171U CN218162241U CN 218162241 U CN218162241 U CN 218162241U CN 202123051171 U CN202123051171 U CN 202123051171U CN 218162241 U CN218162241 U CN 218162241U
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Abstract
The utility model discloses a starting circuit of a plurality of motors, which comprises a bus, wherein a first motor is connected with the bus through a first switch, a second motor is connected with the bus through a second switch, a third motor is connected with the bus through a third switch, and a fourth motor is connected with the bus through a fourth switch; the soft starting device is connected with the bus through a seventh switch; the first motor is connected with the soft start device through an eighth switch, the second motor is connected with the soft start device through a fifth switch, the third motor is connected with the soft start device through a sixth switch, and the fourth motor is connected with the soft start device through a ninth switch.
Description
Technical Field
The utility model belongs to the technical field of the motor starts, a many motor starting circuit is related to.
Background
The motor is a device for converting electric energy into mechanical energy, converts the electric energy into the mechanical energy, is a device for providing power for rotating equipment in industrial and mining enterprises, and particularly has the problems that the motor is difficult to start and the like due to the fact that the required motor power is very large in some large-scale rotating equipment, so that the adoption of a soft starting device is usually considered in the selection of a large-scale motor starting device. In some enterprises and occasions, a plurality of large motors need to be started, and if one motor adopts one set of soft starting device, the investment cost is very high.
The existing starting circuit for multiple motors mainly adopts the scheme that: one soft starter starts one motor or one soft starter starts a plurality of motors. There are the following problems: 1. one motor is started by one soft starting device, the soft starting devices have more equipment, and the investment cost is high; 2. one soft start device starts a plurality of motors, and the parameters of the plurality of motors are required to be consistent or relatively close. If the parameter difference of a plurality of motors is larger, the motors with the similar parameters need to be started by one soft starting device, the more the motor parameter classification is, the more the soft starting device is arranged, and the higher the investment cost is; 3. one soft start device starts one motor or one soft start device starts a plurality of motors, and the soft start device is not standby and has poor safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a many motor starting circuit solves the problem that current motor starting circuit investment cost is high, the security is poor and the flexibility is low.
The utility model adopts the technical scheme that the starting circuit of the multiple motors comprises a bus, a first motor is connected with the bus through a first switch, a second motor is connected with the bus through a second switch, a third motor is connected with the bus through a third switch, and a fourth motor is connected with the bus through a fourth switch; the soft starting device is connected with the bus through a seventh switch; the first motor is connected with the soft start device through an eighth switch, the second motor is connected with the soft start device through a fifth switch, the third motor is connected with the soft start device through a sixth switch, and the fourth motor is connected with the soft start device through a ninth switch.
The soft starting device comprises a first starting unit and a second starting unit, and the first starting unit and the second starting unit are respectively connected with the seventh switch.
The first starting unit is further connected with a starting switch I, and the starting switch I is respectively connected with the eighth switch, the fifth switch and the starting switch III.
The second starting unit is also connected with a starting switch II, and the starting switch II is respectively connected with a sixth switch, a ninth switch and a starting switch III.
The utility model has the advantages that:
the utility model discloses utilize the different combinations of soft starting drive internal start unit to satisfy different motor parameters, reduce equipment investment, reduce cost. Different starting units in the soft starting device are used as a standby for each motor starting device, so that the reliability is improved. The starting units in the soft starting device are combined in various ways, so that the starting flexibility is improved.
Drawings
Fig. 1 is a schematic diagram of a starting circuit for multiple motors according to the present invention.
In the figure, 1, a first motor, 2, a second motor, 3, a third motor, 4, a fourth motor, 5, a first switch, 6, a second switch, 7, a third switch, 8, a fourth switch, 9, a fifth switch, 10, a sixth switch, 11, a seventh switch, 12, an eighth switch, 13, a ninth switch, 14, a soft starting device, 14-1, a first starting unit, 14-2, a second starting unit, 14-3, starting switches I,14-4, starting switches II,14-5, starting switches III and 15 buses.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1: a starting circuit of multiple motors comprises a bus 15, a first motor 1 is connected with the bus 15 through a first switch 5, a second motor 2 is connected with the bus 15 through a second switch 6, a third motor 3 is connected with the bus 15 through a third switch 7, and a fourth motor 4 is connected with the bus 15 through a fourth switch 8; the soft starting device 14 is connected with the bus 15 through the seventh switch 11; the first motor 1 is connected with a soft start device 14 through an eighth switch 12, the second motor 2 is connected with the soft start device 14 through a fifth switch 9, the third motor 3 is connected with the soft start device 14 through a sixth switch 10, and the fourth motor 4 is connected with the soft start device 14 through a ninth switch 13.
The soft start device 14 comprises a first start unit 14-1 and a second start unit 14-2, and the first start unit 14-1 and the second start unit 14-2 are respectively connected with the seventh switch 11.
The first starting unit 14-1 is further connected with a starting switch I14-3, and the starting switch I14-3 is respectively connected with the eighth switch 12, the fifth switch 9 and the starting switch III 14-5.
The second starting unit 14-2 is further connected with a starting switch II14-4, and the starting switch II14-4 is respectively connected with the sixth switch 10, the ninth switch 13 and the starting switch III 14-5.
The first switch 5 is used to put the first motor 1 into normal operation or to turn off the first motor to stop operation. The second switch 6 is used for putting the second motor 2 into normal operation or disconnecting the second motor from stopping operation. The third switch 7 is used for putting the third motor 3 into normal operation or disconnecting the third motor from stopping operation. The third switch 8 is used for putting the fourth motor 4 into normal operation or disconnecting the fourth motor from stopping operation.
The seventh switch 11 is used to turn on and off the soft start device 14, and the soft start device 14 is used to start the first motor 1, the second motor 2, the third motor 3, and the fourth motor 4. The starting switch I14-3 is used for switching on and off of the first starting unit 14-1, the starting switch II14-4 is used for switching on and off of the second starting unit 14-2, and the starting switch III14-5 is used for switching between the first starting unit 14-1 and the second starting unit 14-2.
The starting control process of the motor 1 is as follows: firstly, the switch 11 is switched on, and the switch 9, the switch 10, the switch 13 and the switch 5 are switched off; then, according to the parameters of the motor 1, the switch 14-3, the switch 14-4 and the switch 14-5 are selected to be closed, the starting unit 14-1 or the starting unit 14-2 is selected to be put into operation, or the starting unit 14-1 and the starting unit 14-2 are simultaneously put into operation, and the switch 12 is closed. After the motor 1 is started, the switch 5 is turned on, and the switch 12, the switch 14-3, the switch 14-4, the switch 14-5 and the switch 11 are turned off.
The starting control process of the motor 2 is as follows: firstly, the switch 11 is switched on, and the switch 12, the switch 10, the switch 13 and the switch 6 are switched off; then, according to the parameters of the motor 2, the switch 14-3, the switch 14-4 and the switch 14-5 are selected to be closed, the starting unit 14-1 or the starting unit 14-2 is selected to be put into operation, or the starting unit 14-1 and the starting unit 14-2 are simultaneously put into operation, and the switch 9 is closed. When the motor 2 is started, the switch 6 is turned on, and the switch 9, the switch 14-3, the switch 14-4, the switch 14-5 and the switch 11 are turned off.
The starting control process of the motor 3 is as follows: firstly, the switch 11 is switched on, and the switch 12, the switch 9, the switch 13 and the switch 7 are switched off; then, according to the parameters of the motor 3, the switch 14-4 and the switch 14-5 are selected to be closed, the starting unit 14-1 or the starting unit 14-2 is selected to be switched in, or the starting unit 14-1 and the starting unit 14-2 are switched in simultaneously, and the switch 10 is closed. When the motor 3 is started, the switch 7 is turned on, and the switch 10, the switch 14-3, the switch 14-4, the switch 14-5 and the switch 11 are turned off.
The starting control process of the motor 4 is as follows: firstly, the switch 11 is switched on, and the switch 9, the switch 12, the switch 10 and the switch 8 are switched off; then, according to the parameters of the motor 4, the switch 14-3, the switch 14-4 and the switch 14-5 are selected to be closed, the starting unit 14-1 or the starting unit 14-2 is selected to be put into operation, or the starting unit 14-1 and the starting unit 14-2 are simultaneously put into operation, and the switch 13 is closed. After the motor 4 is started, the switch 8 is turned on, and the switch 13, the switch 14-3, the switch 14-4, the switch 14-5 and the switch 11 are turned off.
Claims (4)
1. A starting circuit of multiple motors is characterized by comprising a bus (15), wherein a first motor (1) is connected with the bus (15) through a first switch (5), a second motor (2) is connected with the bus (15) through a second switch (6), a third motor (3) is connected with the bus (15) through a third switch (7), and a fourth motor (4) is connected with the bus (15) through a fourth switch (8); the soft starting device (14) is connected with the bus (15) through a seventh switch (11); the first motor (1) is connected with the soft starting device (14) through an eighth switch (12), the second motor (2) is connected with the soft starting device (14) through a fifth switch (9), the third motor (3) is connected with the soft starting device (14) through a sixth switch (10), and the fourth motor (4) is connected with the soft starting device (14) through a ninth switch (13).
2. A multiple motor starting circuit according to claim 1, characterized in that said soft starting means (14) comprise a first starting unit (14-1) and a second starting unit (14-2), the first starting unit (14-1) and the second starting unit (14-2) being connected to the seventh switch (11), respectively.
3. A multiple motor starting circuit according to claim 2, characterized in that the first starting unit (14-1) is further connected with a starting switch I (14-3), and the starting switch I (14-3) is connected with the eighth switch (12), the fifth switch (9) and the starting switch III (14-5), respectively.
4. The multiple motor starting circuit according to claim 2, wherein the second starting unit (14-2) is further connected with a starting switch II (14-4), and the starting switch II (14-4) is respectively connected with the sixth switch (10), the ninth switch (13) and the starting switch III (14-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123051171.1U CN218162241U (en) | 2021-12-07 | 2021-12-07 | Starting circuit for multiple motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123051171.1U CN218162241U (en) | 2021-12-07 | 2021-12-07 | Starting circuit for multiple motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218162241U true CN218162241U (en) | 2022-12-27 |
Family
ID=84548912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123051171.1U Active CN218162241U (en) | 2021-12-07 | 2021-12-07 | Starting circuit for multiple motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218162241U (en) |
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2021
- 2021-12-07 CN CN202123051171.1U patent/CN218162241U/en active Active
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