CN220172846U - Motor monitoring system - Google Patents
Motor monitoring system Download PDFInfo
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- CN220172846U CN220172846U CN202321684846.2U CN202321684846U CN220172846U CN 220172846 U CN220172846 U CN 220172846U CN 202321684846 U CN202321684846 U CN 202321684846U CN 220172846 U CN220172846 U CN 220172846U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 110
- 238000009413 insulation Methods 0.000 claims abstract description 45
- 238000004891 communication Methods 0.000 claims description 9
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- 238000010586 diagram Methods 0.000 description 10
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
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Abstract
The utility model provides a motor monitoring system, which comprises a power supply, a motor, a switch circuit module and a monitoring control device, wherein the power supply is used for supplying power, the motor and the power supply are arranged at intervals, one end of the switch circuit module is connected with the power supply, the other end of the switch circuit module is connected with the motor, when the switch circuit module is conducted, the power supply is electrically connected with the motor, when the switch circuit module is disconnected, the power supply is disconnected from the motor, and the monitoring control device is electrically connected with the power supply, the motor and the switch circuit module and comprises a connected monitoring module and a control module; the monitoring module is used for monitoring the insulation value, temperature information and zero sequence current of the motor; the control module is electrically connected with the switch circuit module and is used for controlling the switch circuit module to be disconnected according to at least one of the insulation value, the temperature information and the zero sequence current value of the motor. When at least one of the insulation value of the motor, the temperature information of the motor and the zero sequence current value of the motor is abnormal, the motor can not work, so that the motor is protected, and the safety of the motor is improved.
Description
Technical Field
The utility model relates to the field of automatic monitoring, in particular to a motor monitoring system.
Background
In the related art, due to the influence of process factors and environmental factors, the problems of insulation reduction, overhigh temperature, leakage current and the like of motor equipment are easy to occur in operation, and at the moment, if the motor equipment continues to work, potential safety hazards are easy to occur.
Disclosure of Invention
The utility model aims to provide a motor monitoring system to solve the technical problem that potential safety hazards are easily generated in motor equipment in the related art.
In a first aspect, the present utility model provides a motor monitoring system comprising:
the power supply is used for supplying power;
the motor is arranged at intervals with the power supply;
the switch circuit module is connected with the power supply at one end and the motor at the other end, when the switch circuit module is conducted, the power supply is electrically connected with the motor, and when the switch circuit module is disconnected, the power supply is disconnected with the motor; and
The monitoring control device is electrically connected with the power supply, the motor and the switch circuit module and comprises a monitoring module and a control module, wherein the monitoring module is electrically connected with the control module; the monitoring module is used for monitoring the insulation value of the motor, the temperature information of the motor and the zero sequence current of the motor; the control module is electrically connected with the switch circuit module and is used for controlling the switch circuit module to be disconnected according to at least one of the insulation value of the motor, the temperature information of the motor and the zero sequence current value of the motor.
In the motor monitoring system provided by the utility model, the monitoring control device comprises a monitoring module and a control module which are connected, wherein the monitoring module is used for monitoring the insulation value of the motor, the temperature information of the motor and the zero sequence current of the motor, and the control module is used for controlling the switch circuit module to be disconnected according to at least one of the insulation value of the motor, the temperature information of the motor and the zero sequence current value of the motor. When at least one of the insulation value of the motor, the temperature information of the motor and the zero sequence current value of the motor is abnormal, the motor can not work, so that the motor is protected, and the safety of the motor is improved.
The motor monitoring system further comprises a motor control loop module electrically connected with the power supply, the switch circuit module and the monitoring control device, wherein the motor control loop module is used for controlling the switch circuit module to be turned on or off, when the motor control loop module is turned on, the switch circuit module is turned on, and when the motor control loop module is turned off, the switch circuit module is turned off; the control module is used for controlling at least partial connection or disconnection in the motor control loop module.
Wherein, the monitoring control device still includes:
the direct current output module is electrically connected with the control module and comprises an anode and a cathode, wherein the anode is electrically connected with a binding post of the motor, and the cathode is grounded;
the signal modulation amplifying module is electrically connected with the direct current output module and the monitoring module respectively and is used for amplifying the current signal in the direct current output module and inputting the current signal into the monitoring module, and the control module is used for controlling the motor control loop module to be disconnected according to the current signal.
The monitoring control device further comprises an interlocking module, wherein the interlocking module is interlocked with the switch circuit module, and when the switch circuit module is conducted, the interlocking module is disconnected; when the switch circuit module is disconnected, the interlocking module is conducted;
the monitoring module is electrically connected with the interlocking module, and the control module is used for controlling the direct current output module to work or stop working according to the connection or disconnection of the interlocking module.
The monitoring control device further comprises a temperature sensing module, wherein the temperature sensing module is at least partially arranged on the motor and used for monitoring temperature information of the motor, the temperature sensing module is at least partially electrically connected with the control module, and the control module is used for controlling the motor control loop module to be disconnected according to the temperature information of the motor.
The temperature sensing module comprises at least one wireless sensor and a wireless receiving module, wherein the at least one wireless sensor is arranged on the motor and used for monitoring temperature information of the motor, the wireless receiving module is used for receiving the temperature information of the wireless sensor, and the wireless receiving module is electrically connected with the control module.
The switch circuit module comprises a zero sequence transformer, is electrically connected with the control module, and is used for controlling the disconnection of the motor control loop module according to the zero sequence current value in the zero sequence transformer.
The monitoring control device further comprises a display module which is electrically connected with the control module, and the control module controls the display module to display the insulation value of the motor, the temperature of the motor and the zero sequence current value of the motor.
The monitoring control device further comprises an alarm module which is electrically connected with the control module, and the control module is used for controlling the alarm module to alarm according to the insulation value of the motor, the temperature of the motor and the zero sequence current value of the motor.
The monitoring control device further comprises a communication module which is electrically connected with the control module, and the control module controls the communication module to send the insulation value of the motor, the temperature information of the motor and the zero sequence current value of the motor to user equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic electrical structure diagram of a motor monitoring system according to an embodiment of the present utility model;
fig. 2 is a schematic diagram illustrating connection of each module in a motor monitoring system according to an embodiment of the present utility model;
fig. 3 is a second schematic connection diagram of each module in the motor monitoring system according to the embodiment of the present utility model;
fig. 4 is a schematic electrical diagram of a motor monitoring system according to an embodiment of the present utility model;
fig. 5 is a schematic diagram showing connection of each module in a motor monitoring system according to an embodiment of the present utility model.
Description of the reference numerals:
the motor monitoring system comprises a motor monitoring system-100, a power supply-1, a motor-2, a switch circuit module-3, a zero sequence transformer-31, a monitoring control device-4, a monitoring module-41, a control module-42, a direct current output module-43, a signal modulation amplifying module-44, an interlocking module-45, an alarm module-46, a display module-47, a communication module-48, a wiring terminal-491, a sampling filter circuit-492, an A/D conversion circuit-493, a motor control loop module-5, a motor switch-51, a control switch-52 and a wireless receiving module-60.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Reference herein to "an embodiment" or "implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
In the present specification, for convenience, words such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate an azimuth or a positional relationship, are used to describe positional relationships of constituent elements with reference to the drawings, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus are not to be construed as limiting the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction of the described constituent elements. Therefore, the present utility model is not limited to the words described in the specification, and may be appropriately replaced according to circumstances.
In this specification, the terms "mounted," "connected," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intermediate members, or may be in communication with the interior of two elements. The meaning of the above terms in the present disclosure can be understood by one of ordinary skill in the art as appropriate.
In the related art, due to the influence of process factors and environmental factors, the problems of insulation reduction, overhigh temperature, leakage current and the like of motor equipment are easy to occur in operation, and at the moment, if the motor equipment continues to work, potential safety hazards are easy to occur.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic electrical structure diagram of a motor monitoring system according to an embodiment of the present utility model, and fig. 2 is a schematic connection diagram of each module in the motor monitoring system according to the embodiment of the present utility model.
The utility model provides a motor monitoring system 100 to solve the technical problem that potential safety hazards are easily generated in motor 2 equipment in the related art.
The motor monitoring system 100 comprises a power supply 1, a motor 2, a switch circuit module 3 and a monitoring control device 4. The power supply 1 is used for supplying power. The motor 2 is arranged at intervals from the power supply 1.
Alternatively, in the present embodiment, the motor 2 is a three-phase asynchronous motor, and in other embodiments, the motor 2 may be a single-phase asynchronous motor or other types of motors, which is not limited in the present utility model.
One end of the switch circuit module 3 is connected with the power supply 1, and the other end of the switch circuit module 3 is connected with the motor 2. When the switch circuit module 3 is turned on, the power supply 1 is electrically connected to the motor 2, and when the switch circuit module 3 is turned off, the power supply 1 is disconnected from the motor 2.
In other words, the switching circuit module 3 is a main circuit in which the motor 2 is electrically connected to the power supply 1, and the power supply 1 supplies an electric signal to the motor 2 through the switching circuit module 3.
The monitoring control device 4 is electrically connected with the power supply 1, the motor 2 and the switch circuit module 3, the monitoring control device 4 comprises a monitoring module 41 and a control module 42, and the monitoring module 41 is electrically connected with the control module 42. The monitoring module 41 is configured to monitor an insulation value of the motor 2, temperature information of the motor 2, and zero sequence current of the motor 2. The control module 42 is electrically connected to the switch circuit module 3, and the control module 42 is configured to control the switch circuit module 3 to be turned off according to at least one of an insulation value of the motor 2, temperature information of the motor 2, and a zero sequence current value of the motor 2.
The control module 42 is electrically connected to the switching circuit module 3, and the control module 42 is operable to control the switching circuit module 3 to be turned off. The control module 42 is configured to control the switch circuit module 3 to be turned off according to at least one of an insulation value of the motor 2, temperature information of the motor 2, and a zero sequence current value of the motor 2. When the control module 42 controls the switch circuit module 3 to be turned off, the switch circuit module 3 is not turned on and the motor 2 does not operate even if the start switch of the motor 2 is pressed.
In the motor monitoring system 100 provided by the utility model, the monitoring control device 4 comprises the monitoring module 41 and the control module 42 which are connected, wherein the monitoring module 41 is used for monitoring the insulation value of the motor 2, the temperature information of the motor 2 and the zero sequence current of the motor 2, and the control module 42 is used for controlling the switch circuit module 3 to be disconnected according to at least one of the insulation value of the motor 2, the temperature information of the motor 2 and the zero sequence current value of the motor 2. When at least one of the insulation value of the motor 2, the temperature information of the motor 2, and the zero sequence current value of the motor 2 is abnormal, the motor 2 does not work, thereby protecting the motor 2 and improving the safety of the motor 2.
The switch circuit module 3 includes a contactor KM1, and in this embodiment, the on of the switch circuit module 3 represents the on of the contactor KM1, and the off of the switch circuit module 3 represents the off of the contactor KM1, which should not be construed as limiting the present utility model.
Referring to fig. 1, 3 and 4, fig. 3 is a schematic connection diagram of each module in a motor monitoring system according to an embodiment of the present utility model, and fig. 4 is a schematic electrical structure diagram of a motor monitoring system according to an embodiment of the present utility model.
In one embodiment, the motor monitoring system 100 further includes a motor control loop module 5, where the motor control loop module 5 is electrically connected to the power supply 1, the switch circuit module 3, and the monitoring control device 4, and the motor control loop module 5 is configured to control the switch circuit module 3 to be turned on or off, and when the motor control loop module 5 is turned on, the switch circuit module 3 is turned on, and when the motor control loop module 5 is turned off, the switch circuit module 3 is turned off.
The control module 42 is configured to control at least a portion of the motor control loop module 5 to be turned on or off.
Specifically, the motor control circuit module 5 includes a motor switch 51 and a control switch 52 that are connected, where the control module 42 controls the control switch 52 to be turned on when the insulation value, the temperature information, the zero sequence current value, and other indexes of the motor 2 are all normal, and when the motor switch 51 is turned on, the switch circuit module 3 can also be turned on, and the motor 2 can work. If at least one of the insulation value, the temperature information, and the zero sequence current value of the motor 2 is abnormal, the control module 42 controls the control switch 52 to be turned off, and at this time, even if the motor switch 51 is turned on, the motor control circuit module 5 is turned off, the switching circuit module 3 is turned off, and the motor 2 cannot operate.
For example, when the insulation value of the motor 2 is abnormal, the control module 42 controls the control switch 52 to be turned off, and the motor control loop module 5 to be turned off; when the temperature information of the motor 2 is abnormal, the control module 42 controls the control switch 52 to be opened, and the motor control loop module 5 is opened; when the zero sequence current value of the motor 2 is abnormal, the control module 42 controls the control switch 52 to be opened, and the motor control loop module 5 is opened.
Referring to fig. 1, 3, 4 and 5, fig. 5 is a schematic connection diagram of each module in a motor monitoring system according to an embodiment of the utility model. In one embodiment, the monitoring control device 4 further includes a dc output module 43 and a signal modulation and amplification module 44.
The direct current output module 43 is electrically connected with the control module 42, the direct current output module 43 comprises a positive electrode and a negative electrode, the positive electrode is electrically connected with a binding post of the motor 2, and the negative electrode is grounded.
The connection manner of the positive electrode to the terminal post of the motor 2 includes, but is not limited to, direct connection or indirect connection, in other words, the positive electrode may be electrically connected to the terminal post of the motor 2 by connecting the switch circuit module 3, which is not limited to this aspect of the utility model.
The positive electrode may be connected to any one of the power supply 1 phase lines of the motor 2, which is not limited in the present utility model. The negative electrode is connected with the shell of the motor 2, and meanwhile, the shell of the motor 2 needs to be grounded.
The signal modulation and amplification module 44 is electrically connected to the dc output module 43 and the monitoring module 41, respectively, and is configured to amplify and input a current signal in the dc output module 43 into the monitoring module 41, and the control module 42 is configured to control the motor control loop module 5 to be disconnected according to the current signal.
The signal modulation and amplification module 44 senses the current signal in the path, and the control module 42 includes a calculation unit that calculates the insulation value between the terminal of the motor 2 and the ground according to ohm's law.
In one embodiment, the control module 42 controls the control switch 52 to open and the motor control loop module 5 to open when the insulation value is less than an insulation threshold.
Alternatively, in this embodiment, the insulation threshold is 0.5 megaohms (mΩ), and in other embodiments, the insulation threshold may be 0.6 megaohms, or 0.7 megaohms, or 1 megaohms, or 2 megaohms, or other values, which are not limited by the present utility model.
In another embodiment, the control module 42 may record insulation values at different times, calculate the absorption ratio of the motor 2 according to the insulation values at different times, and when the absorption ratio of the motor 2 is greater than a preset ratio, the control module 42 controls the control switch 52 to be turned off, and the motor control loop module 5 to be turned off.
Optionally, the output voltage of the dc output module 43 includes, but is not limited to, 500V.
In one embodiment, the monitoring control device 4 further comprises an interlock module 45. The interlock module 45 is interlocked with the switch circuit module 3, and the interlock module 45 is disconnected when the switch circuit module 3 is turned on. When the switching circuit module 3 is turned off, the interlock module 45 is turned on.
The monitoring module 41 is electrically connected with the interlocking module 45, and the control module 42 is used for controlling the direct current output module 43 to work or stop working according to the connection or disconnection of the interlocking module 45.
Specifically, when the switch circuit module 3 is turned on, the motor 2 is operated, the interlock module 45 is turned off, the monitoring module 41 monitors that the interlock module 45 is turned off and sends a signal to the control module 42, and the control module 42 receives the turn-off signal and controls the dc output module 43 to stop operating. When the switch circuit module 3 is turned off, the motor 2 is not operated, the interlock module 45 is turned on, the monitoring module 41 monitors that the interlock module 45 is turned off and sends a signal to the control module 42, the control module 42 receives the turn-off signal and controls the dc output module 43 to start operating, and at this time, the monitoring module 41 and the control module 42 monitor the insulation value of the motor 2.
In one embodiment, the monitoring and controlling device 4 further includes a temperature sensing module, where the temperature sensing module is at least partially disposed on the motor 2 and is used for monitoring temperature information of the motor 2, and the temperature sensing module is at least partially electrically connected to the control module 42, and the control module 42 is used for controlling the motor control loop module 5 to be disconnected according to the temperature information of the motor 2.
Specifically, the control module 42 is configured to control the control switch 52 to be turned on or off according to the temperature information of the motor 2, and when the control switch 52 is turned off, the motor control loop module 5 is turned off.
For example, in one embodiment, if the temperature of the motor 2 is greater than 50 ℃, the control module 42 controls the control switch 52 to be turned off, and at this time, even if the motor switch 51 is turned on, the motor control loop module 5 is turned off, the switch circuit module 3 is turned off, and the motor 2 cannot operate.
In other embodiments, the control module 42 may control the control switch 52 to be turned off when the temperature of the motor 2 is greater than other degrees, and the motor 2 cannot continue to operate. For example, the temperature of the motor 2 is greater than 45 ℃, or 55 ℃, or 60 ℃, or 70 ℃, or other degrees, and the motor 2 cannot continue to operate, which is not limited by the present utility model.
The temperature sensing module includes at least one wireless sensor and a wireless receiving module 60, wherein the at least one wireless sensor is disposed on the motor 2 and is used for monitoring temperature information of the motor 2, the wireless receiving module 60 is used for receiving the temperature information of the wireless sensor, and the wireless receiving module 60 is electrically connected with the control module 42.
Further, the temperature sensing module may be used to sense the temperature of the parts that are easy to generate heat, such as the binding post and the bus connection of the motor 2. The temperature sensing module may also be used to sense the temperature of the power supply 1, which is not limited in the present utility model.
Optionally, in this embodiment, the temperature measurement range of the wireless sensor is-40 ℃ to 150 ℃. The wireless sensor emits frequencies including, but not limited to 433MHz. The wireless sensor may be mounted by, but not limited to, crimping, magnetic attraction, or other mounting means.
Optionally, the acceptable distance range of the wireless receiving module 60 is 0 m-100 m.
In one embodiment, the switching circuit module 3 includes a zero sequence transformer 31 electrically connected to the control module 42, and the control module 42 is configured to control the motor control loop module 5 to be disconnected according to a zero sequence current value in the zero sequence transformer 31.
Specifically, the control module 42 is configured to control the on or off of the control switch 52 according to the zero sequence current value in the zero sequence transformer 31, and when the control switch 52 is turned off, the motor control loop module 5 is turned off.
For example, in one embodiment, if the zero sequence current value in the zero sequence transformer 31 is greater than 100mA, the control module 42 controls the control switch 52 to be turned off, and even if the motor switch 51 is turned on, the motor control loop module 5 is turned off, the switch circuit module 3 is turned off, and the motor 2 cannot operate.
In other embodiments, when the zero sequence current value in the zero sequence transformer 31 is greater than a numerical value, the control module 42 controls the control switch 52 to be turned off, and the motor 2 cannot continue to operate. For example, when the zero sequence current value in the zero sequence transformer 31 is greater than 50mA, or 60mA, or 70mA, or 150mA, or 200mA, or other values, the motor 2 cannot continue to operate, which is not limited by the present utility model.
In one embodiment, the monitoring and controlling device 4 further includes an alarm module 46 electrically connected to the control module 42, where the control module 42 is configured to control the alarm module 46 to alarm according to the insulation value of the motor 2, the temperature of the motor 2, and the zero sequence current value of the motor 2.
Specifically, the control module 42 controls the alarm module 46 to alarm when an abnormality occurs in at least one of the insulation value of the motor 2, the temperature information of the motor 2, and the zero sequence current value of the motor 2.
Further, in one embodiment, the motor monitoring system 100 further includes a key and setting module, where the key and setting module is electrically connected to the control module 42 and the monitoring module 41, and the key and setting module may be used to set an insulation threshold, a temperature threshold, and a zero sequence current threshold, so as to facilitate the control module 42 to control the alarm module 46 to alarm and control the control switch 52 to be turned off.
Further, the two sets of insulation thresholds, two sets of temperature thresholds and two sets of zero sequence current thresholds can be set by the key and setting module, and are respectively used for alarming by the alarm module 46 and controlling the control switch 52 to be turned off. For example, the first insulation threshold is 0.6 megaohm, the second insulation threshold is 0.5 megaohm, the control module 42 controls the alarm module 46 to alarm when the insulation value is less than 0.6 megaohm and greater than 0.5 megaohm, and the control module 42 controls the control switch 52 to be turned off when the insulation value is less than 0.5 megaohm, and the motor 2 cannot operate.
In one embodiment, the monitoring control device 4 further includes a display module 47 electrically connected to the control module 42, and the control module 42 controls the display module 47 to display the insulation value of the motor 2, the temperature of the motor 2, and the zero sequence current value of the motor 2.
In one embodiment, the monitoring control device 4 further includes a communication module 48 electrically connected to the control module 42, where the control module 42 controls the communication module 48 to send the insulation value of the motor 2, the temperature information of the motor 2, and the zero sequence current value of the motor 2 to a user device, so as to remind the user of performing a corresponding operation on the motor 2.
In one embodiment, the monitoring control device 4 further includes a connection terminal 491, a sampling filter circuit 492, and an a/D conversion circuit 493.
The connection terminal 491 is connected to the sampling filter circuit 492, the sampling filter circuit 492 is connected to the signal modulation and amplification module 44, the signal modulation and amplification module 44 is connected to the a/D conversion circuit 493, the a/D conversion circuit 493 is connected to the monitoring module 41, the monitoring module 41 and the control module 42, and the control module 42 is connected to the communication module 48, the control switch 52, the display module 47, and the key and the setting module.
The interlocking module 45, the direct current output module 43, the zero sequence transformer 31 and the power supply 1 are connected with the connecting terminal 491.
While the foregoing is directed to embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, and such changes and modifications are intended to be included within the scope of the utility model.
Claims (10)
1. A motor monitoring system, comprising:
the power supply is used for supplying power;
the motor is arranged at intervals with the power supply;
the switch circuit module is connected with the power supply at one end and the motor at the other end, when the switch circuit module is conducted, the power supply is electrically connected with the motor, and when the switch circuit module is disconnected, the power supply is disconnected with the motor; and
The monitoring control device is electrically connected with the power supply, the motor and the switch circuit module and comprises a monitoring module and a control module, wherein the monitoring module is electrically connected with the control module; the monitoring module is used for monitoring the insulation value of the motor, the temperature information of the motor and the zero sequence current of the motor; the control module is electrically connected with the switch circuit module and is used for controlling the switch circuit module to be disconnected according to at least one of the insulation value of the motor, the temperature information of the motor and the zero sequence current value of the motor.
2. The motor monitoring system of claim 1, further comprising a motor control loop module electrically connected to the power supply, the switching circuit module, and the monitoring control device, the motor control loop module configured to control the switching circuit module to turn on or off, the switching circuit module to turn on when the motor control loop module is on, and the switching circuit module to turn off when the motor control loop module is off; the control module is used for controlling at least partial connection or disconnection in the motor control loop module.
3. The motor monitoring system of claim 2, wherein the monitoring control means further comprises:
the direct current output module is electrically connected with the control module and comprises an anode and a cathode, wherein the anode is electrically connected with a binding post of the motor, and the cathode is grounded;
the signal modulation amplifying module is electrically connected with the direct current output module and the monitoring module respectively and is used for amplifying the current signal in the direct current output module and inputting the current signal into the monitoring module, and the control module is used for controlling the motor control loop module to be disconnected according to the current signal.
4. The motor monitoring system of claim 3 wherein the monitoring control device further comprises an interlock module that interlocks with the switch circuit module, the interlock module being open when the switch circuit module is on; when the switch circuit module is disconnected, the interlocking module is conducted;
the monitoring module is electrically connected with the interlocking module, and the control module is used for controlling the direct current output module to work or stop working according to the connection or disconnection of the interlocking module.
5. The motor monitoring system of claim 2, wherein the monitoring control device further comprises a temperature sensing module, the temperature sensing module is at least partially disposed on the motor and is used for monitoring temperature information of the motor, the temperature sensing module is at least partially electrically connected with the control module, and the control module is used for controlling the motor control loop module to be disconnected according to the temperature information of the motor.
6. The motor monitoring system of claim 5, wherein the temperature sensing module comprises at least one wireless sensor and a wireless receiving module, the at least one wireless sensor is disposed on the motor for monitoring temperature information of the motor, the wireless receiving module is used for receiving temperature information of the wireless sensor, and the wireless receiving module is electrically connected with the control module.
7. The motor monitoring system of claim 2, wherein the switching circuit module comprises a zero sequence transformer electrically connected to the control module, the control module configured to control the motor control loop module to open based on a zero sequence current value within the zero sequence transformer.
8. The motor monitoring system of claim 1, wherein the monitoring control device further comprises a display module electrically connected to the control module, the control module controlling the display module to display an insulation value of the motor, a temperature of the motor, and a zero sequence current value of the motor.
9. The motor monitoring system of claim 1, wherein the monitoring control device further comprises an alarm module electrically connected to the control module, the control module being configured to control the alarm module to alarm based on an insulation value of the motor, a temperature of the motor, and a zero sequence current value of the motor.
10. The motor monitoring system of claim 1, wherein the monitoring control device further comprises a communication module electrically connected to the control module, the control module controlling the communication module to transmit the insulation value of the motor, the temperature information of the motor, and the zero sequence current value of the motor to a user device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321684846.2U CN220172846U (en) | 2023-06-29 | 2023-06-29 | Motor monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321684846.2U CN220172846U (en) | 2023-06-29 | 2023-06-29 | Motor monitoring system |
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| CN220172846U true CN220172846U (en) | 2023-12-12 |
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| CN202321684846.2U Active CN220172846U (en) | 2023-06-29 | 2023-06-29 | Motor monitoring system |
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| CN (1) | CN220172846U (en) |
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2023
- 2023-06-29 CN CN202321684846.2U patent/CN220172846U/en active Active
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