CN220914939U - Integrated AC motor protection controller - Google Patents
Integrated AC motor protection controller Download PDFInfo
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- CN220914939U CN220914939U CN202322632952.2U CN202322632952U CN220914939U CN 220914939 U CN220914939 U CN 220914939U CN 202322632952 U CN202322632952 U CN 202322632952U CN 220914939 U CN220914939 U CN 220914939U
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- 230000000007 visual effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- 241000252230 Ctenopharyngodon idella Species 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of motor control, in particular to an integrated alternating current motor protection controller, which comprises: the current detection module is used for being connected to the output end of the power grid and/or the frequency converter so as to realize current detection; the relay unit is connected with at least one motor, wherein the input end of the relay unit is electrically connected with the output end of the current detection module; according to the utility model, the relay unit arranged can be used for connecting a plurality of alternating current motors to control, when the corresponding current detection module detects the current grass carp threshold value of the current motor, the current detection module can be stopped by the control power supply to avoid further damage of the motors, so that the technical scheme of current detection and control of the motors is realized, and secondly, the controller in the scheme can be connected with the cloud server, so that a user can conveniently and remotely check the state of the shutdown motor and carry out primary overhaul, and the overhaul efficiency and convenience of the user on the motors are greatly improved.
Description
Technical Field
The utility model relates to the technical field of motor control, in particular to an integrated alternating current motor protection controller.
Background
The alternating current motor has the advantages of simple structure, easy maintenance, low requirement on environment and high cost, so that the alternating current motor is widely applied to industrial equipment, but along with continuous progress of China technology, the requirement on the intelligent degree of the industrial equipment is higher and higher. At the same time, the demands on ac motor controllers are also increasing.
There are currently mainly 2 control modes for ac motor control: 1. directly accessing to a 220VAC or 380VAC power grid, and controlling the start and stop of an alternating current motor through a switch; 2. the frequency converter is connected with a power grid to supply power, and then the alternating current motor is controlled in a frequency conversion mode.
In practice, however, it is often necessary to limit the operating current of an ac motor. When the working current of the motor exceeds a certain current value, the motor is required to stop running so as to protect the electricity safety of the motor, and the current frequency converter can realize overcurrent protection of the motor, but cannot realize cooperative control of a plurality of motors, and meanwhile, the remote observation of the overcurrent motor by a user is inconvenient, so that inconvenience in maintenance is caused.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides an integrated alternating current motor protection controller.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
An integrated ac motor protection controller is designed, comprising:
The current detection module is used for being connected to the output end of the power grid and/or the frequency converter so as to realize current detection;
The relay unit is connected with at least one motor, wherein the input end of the relay unit is electrically connected with the output end of the current detection module;
the control unit is electrically connected with the current detection module and the relay unit and is used for controlling the relay unit to close a relative circuit when the current detection module detects that the current of the motor exceeds a threshold current;
The current adjusting module is electrically connected with the control unit and is used for adjusting the magnitude of the threshold current.
Further, the relay unit comprises a circuit board and a plurality of relay modules arranged on the circuit board, wherein each relay module is used for being connected with a motor, and the circuit board is in serial communication with the control unit.
Further, the serial communication is one of RS-232, RS-485 or RS-422.
Further, the control unit is connected with the cloud server through the wireless module, a visual unit and a temperature detection module are further installed on the motor, and the visual unit and the temperature detection module are electrically connected with the control unit.
Further, the relay module comprises a main relay and an auxiliary relay, and the main relay and the auxiliary relay are respectively and electrically connected with the motor through wires.
Further, the system also comprises an alarm module;
The alarm module is electrically connected with the control unit and is used for sending alarm information outwards when the motor current exceeds a threshold current.
Further, the current detection module is a current sensor, and the alarm module is an audible and visual alarm.
The integrated alternating current motor protection controller provided by the utility model has the beneficial effects that: according to the utility model, the relay unit arranged can be used for connecting a plurality of alternating current motors to control, when the corresponding current detection module detects the current grass carp threshold value of the current motor, the current detection module can be stopped by the control power supply to avoid further damage of the motors, so that the technical scheme of current detection and control of the motors is realized, and secondly, the controller in the scheme can be connected with the cloud server, so that a user can conveniently and remotely check the state of the shutdown motor and carry out primary overhaul, and the overhaul efficiency and convenience of the user on the motors are greatly improved.
Drawings
FIG. 1 is a schematic block diagram of the present utility model;
FIG. 2 is a schematic block diagram of a relay unit of the present utility model;
fig. 3 is a functional block diagram of a relay module of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-3, an integrated ac motor protection controller is disclosed that includes a current detection module for connection to an output of a power grid and/or a frequency converter to enable current detection;
The relay unit is connected with at least one motor, wherein the input end of the relay unit is electrically connected with the output end of the current detection module;
Of course, in other embodiments, those skilled in the art will recognize that the number of motors may be selected according to the actual requirements to implement one or more control schemes.
The control unit is an MCU controller, is electrically connected with the current detection module and the relay unit, and is used for controlling the relay unit to close a relative circuit when the current detection module detects that the motor current exceeds a threshold current;
The current adjusting module is electrically connected with the control unit and is used for adjusting the magnitude of the threshold current, and specifically, in this embodiment, the current adjusting module is a current adjusting circuit, such as a varistor adjusting circuit, and the means is in the prior art and is not described in detail herein.
In some embodiments, the relay unit of the present utility model includes a circuit board and a plurality of relay modules mounted on the circuit board, where each relay module is used to connect to a motor, and the circuit board communicates with the serial port of the control unit, and when multiple motors need to be connected, the multiple motors can be connected to the relay modules one by one, so that the control unit can control the relay modules to realize on-off of the motor circuit.
Specifically, when connecting the circuit, connect electric wire netting with current detection module or connect on the output of converter, adjust current regulation module to demand numerical value, control unit continuously receives current value of current detection module, when the current of motor surpasses the numerical value that current regulation module adjusted, then control unit control relay module closes the relay module that corresponds the motor and connect, so realize the protection to the overcurrent motor, avoid taking place further in order bad, promoted the monitoring convenience to a plurality of motors.
Based on the above embodiments, the serial communication of the present utility model includes, but is not limited to, one of RS-232, RS-485 or RS-422.
Further, in the embodiment of the utility model, the control unit is connected with the cloud server through the wireless module, the motor is also provided with the visual unit and the temperature detection module, the visual unit and the temperature detection module are electrically connected with the control unit, in the embodiment, the control unit is connected with the cloud server, a user can read and send data of the control unit after connecting with the cloud server through terminal equipment such as a mobile phone, so that when the motor is stopped in an overcurrent way, the user can read the state of the current motor through the terminal equipment to observe the state of the current motor, if the current motor is in a bad state or is blocked state, and the like, in addition, after the current is increased, the motor also heats, therefore, the motor temperature can be detected by adopting a mode of detecting by adopting the temperature detection module, so as to judge whether the motor burns out, and the temperature detection module adopts the temperature sensor.
In other words, the relay module in the present utility model includes a main relay and an auxiliary relay, which are electrically connected to the motor through wires, respectively, and in the present utility model, one motor is connected to each other by adopting two relay methods, so that the purpose of the present utility model is to remotely detect whether the motor is damaged or damaged due to overcurrent protection, for example, when the main relay is connected, when the main relay is disconnected, a user can control the control unit through the equipment terminal to turn on the auxiliary relay to remotely start the motor, and if the motor still has an overcurrent problem, the motor is judged to be damaged.
In order to intuitively remind a user of alarm information, the utility model also comprises an alarm module; the alarm module is electrically connected with the control unit and is used for sending alarm information outwards when the motor current exceeds a threshold current.
In some embodiments the current detection module is a current sensor and the alarm module is an audible and visual alarm.
In summary, the relay unit arranged in the utility model can be used for connecting a plurality of alternating current motors to control, when the corresponding current detection module detects the current grass carp threshold value of the current motor, the current detection module can be stopped by controlling the power supply to avoid further damage of the motors, so that the technical scheme of current detection and control of the motors is realized, and secondly, the controller in the scheme can be connected with the cloud server, so that a user can conveniently and remotely check the state of the shutdown motor and carry out primary overhaul, and the overhaul efficiency and convenience of the user on the motors are greatly improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. An integrated ac motor protection controller, comprising:
The current detection module is used for being connected to the output end of the power grid and/or the frequency converter so as to realize current detection;
The relay unit is connected with at least one motor, wherein the input end of the relay unit is electrically connected with the output end of the current detection module;
the control unit is electrically connected with the current detection module and the relay unit and is used for controlling the relay unit to close a relative circuit when the current detection module detects that the current of the motor exceeds a threshold current;
The current adjusting module is electrically connected with the control unit and is used for adjusting the magnitude of the threshold current.
2. An integrated ac motor protection controller as recited in claim 1, wherein: the relay unit comprises a circuit board and a plurality of relay modules arranged on the circuit board, wherein each relay module is used for being connected with a motor, and the circuit board is in serial communication with the control unit.
3. An integrated ac motor protection controller as recited in claim 2, wherein: the serial port communication is one of RS-232, RS-485 or RS-422.
4. An integrated ac motor protection controller as recited in claim 2, wherein: the control unit is connected with the cloud server through the wireless module, a visual unit and a temperature detection module are further installed on the motor, and the visual unit and the temperature detection module are electrically connected with the control unit.
5. An integrated ac motor protection controller as recited in claim 4, wherein: the relay module comprises a main relay and an auxiliary relay, and the main relay and the auxiliary relay are respectively and electrically connected with the motor through wires.
6. An integrated ac motor protection controller as recited in claim 1, wherein: the system also comprises an alarm module;
The alarm module is electrically connected with the control unit and is used for sending alarm information outwards when the motor current exceeds a threshold current.
7. An integrated ac motor protection controller as recited in claim 6, wherein: the current detection module is a current sensor, and the alarm module is an audible and visual alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322632952.2U CN220914939U (en) | 2023-09-27 | 2023-09-27 | Integrated AC motor protection controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322632952.2U CN220914939U (en) | 2023-09-27 | 2023-09-27 | Integrated AC motor protection controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220914939U true CN220914939U (en) | 2024-05-07 |
Family
ID=90913820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322632952.2U Active CN220914939U (en) | 2023-09-27 | 2023-09-27 | Integrated AC motor protection controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220914939U (en) |
-
2023
- 2023-09-27 CN CN202322632952.2U patent/CN220914939U/en active Active
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