CN110994555A - Intelligent electronic type thermal relay - Google Patents
Intelligent electronic type thermal relay Download PDFInfo
- Publication number
- CN110994555A CN110994555A CN201911328878.7A CN201911328878A CN110994555A CN 110994555 A CN110994555 A CN 110994555A CN 201911328878 A CN201911328878 A CN 201911328878A CN 110994555 A CN110994555 A CN 110994555A
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- China
- Prior art keywords
- motor
- data processor
- intelligent electronic
- control signal
- thermal relay
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention relates to a motor working protection device, in particular to an intelligent electronic type thermal relay, which comprises a data processor, wherein the data processor is connected with a current acquisition module for acquiring the working current of a motor, the data processor is connected with a voltage acquisition module for acquiring the working voltage of the motor, the data processor is connected with a control signal output module for outputting a control signal, and the control signal output module sends the control signal to a loop controller connected in a motor loop; the technical scheme provided by the invention can effectively overcome the defect that the detection parameter is single in the prior art; intelligent protection cannot be distinguished according to different abnormal states of the motor; the motor operation parameters cannot be reported and output, and the motor operation cannot be intelligently managed and monitored; the defects of a plurality of motor devices cannot be monitored by one data port.
Description
Technical Field
The invention relates to a motor work protection device, in particular to an intelligent electronic type thermal relay.
Background
The motor is a commonly used driving device, and the temperature has an important influence on the service life of the motor. In the using process, the normal temperature of the motor is kept at about 90 ℃. However, in the working process of the motor, the temperature of the motor is increased under various conditions, such as higher power supply voltage, larger exciting current, increased current caused by asymmetric three-phase voltage, damaged or reduced heat dissipation device of the motor, lack of lubricating oil in a motor bearing, increased temperature of a stator coil of the motor, turn-to-turn short circuit caused by coil insulation failure, interphase short circuit or ground short circuit, and the like.
The abnormality of voltage and current is the most common factor, and is the most effective and direct parameter for detecting the running state of the motor. In the prior art, the means for monitoring the operation of the three-phase alternating current motor is lagged behind, the response time is long, and the abnormal operation state of the motor cannot be found in time and corresponding measures are taken to cause the damage of the motor. In addition, the detection parameters in the prior art are single, the monitoring dynamic range is small, the product specifications are various, the use and production management are not facilitated, and the product cost is correspondingly increased.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides an intelligent electronic type thermal relay which can effectively overcome the defect that the detection parameters in the prior art are single; intelligent protection cannot be distinguished according to different abnormal states of the motor; the motor operation parameters cannot be reported and output, and the motor operation cannot be intelligently managed and monitored; the defects of a plurality of motor devices cannot be monitored by one data port.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides an intelligence electronic type thermorelay, includes data processor, data processor links to each other with the current acquisition module that is used for gathering motor operating current, data processor links to each other with the voltage acquisition module that is used for gathering motor operating voltage, data processor links to each other with the control signal output module that is used for exporting control signal, control signal output module sends control signal to the loop control ware that connects in motor loop.
Preferably, when the data acquired by the current acquisition module and the voltage acquisition module are abnormal data, the data processor sends a loop disconnection control signal to the loop controller through the control signal output module.
Preferably, the data processor is further connected with an electrical parameter acquisition unit for acquiring all electrical parameters when the motor works.
Preferably, the data processor is connected to an external data interface for supporting multi-stage cascade and performing data transmission.
Preferably, the external data interface supports cascade connection with a plurality of intelligent electronic thermal relays, monitors a plurality of motors, and outputs all electrical parameters of the plurality of intelligent electronic thermal relays.
Preferably, the data processor is connected with a display for displaying the working state of the intelligent electronic thermal relay and the working parameters of the target motor.
Preferably, the data processor is connected with a key input module for providing local interactive signal acquisition and performing local man-machine communication.
(III) advantageous effects
Compared with the prior art, the intelligent electronic type thermal relay provided by the invention has the following beneficial effects:
1. the current acquisition module acquires the working current of the motor, the voltage acquisition module acquires the working voltage of the motor, and the data processor sends a loop disconnection control signal to the loop controller through the control signal output module when the data acquired by the current acquisition module and the voltage acquisition module are abnormal data, so that the motor stops working, and intelligent protection is realized when the motor is in an abnormal state;
2. the external data interface supports cascade connection with the intelligent electronic thermal relays, monitors the motors and outputs all electric parameters of the intelligent electronic thermal relays, so that effective support is provided for realizing intelligent management and monitoring of local operation of the motors and network cloud;
3. the display displays the working state of the intelligent electronic thermal relay and the working parameters of the target motor, so that the working current and the working voltage of the motor are collected, and meanwhile, the information interaction with the outside is facilitated;
4. through the evaluation of the running state of the motor, the fault hidden danger of the motor is found in time, early warning is carried out in advance, the motor is protected, and the safe and reliable running of the system is ensured;
5. through the curve analysis of all the electric parameters in the starting process and the daily work of the motor, the abnormal working state of the motor is found in time, the motor protection is rapidly executed, and the damage and the fault of the motor are prevented from further expansion.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides an intelligence electronic type thermorelay, as shown in figure 1, includes data processor, and data processor links to each other with the current acquisition module that is used for gathering motor operating current, and data processor links to each other with the voltage acquisition module that is used for gathering motor operating voltage, and data processor links to each other with the control signal output module that is used for exporting control signal, and control signal output module sends control signal to the loop control ware that connects in the motor circuit.
When the data acquired by the current acquisition module and the voltage acquisition module are abnormal data, the data processor sends a loop disconnection control signal to the loop controller through the control signal output module.
The data processor is also connected with an electrical parameter acquisition unit for acquiring all electrical parameters of the motor during working.
The data processor is connected with an external data interface which is used for supporting multi-stage cascade connection and carrying out data transmission.
The external data interface supports cascade connection with a plurality of intelligent electronic thermal relays, monitors a plurality of motors and outputs all electrical parameters of the intelligent electronic thermal relays.
And the data processor is connected with a display for displaying the working state of the intelligent electronic thermal relay and the working parameters of the target motor.
The data processor is connected with a key input module which is used for providing local interactive signal acquisition and carrying out local man-machine communication.
The current acquisition module acquires the working current of the motor, the voltage acquisition module acquires the working voltage of the motor, and when the data acquired by the current acquisition module and the voltage acquisition module are abnormal data, the data processor sends a circuit breaking control signal to the circuit controller through the control signal output module, so that the motor stops working, and intelligent protection when the motor is in an abnormal state is realized.
The external data interface supports cascade connection with a plurality of intelligent electronic thermal relays, monitors a plurality of motors, outputs all electric parameters of the intelligent electronic thermal relays, and provides effective support for realizing intelligent management and monitoring of local operation and network cloud of the motors.
The display displays the working state of the intelligent electronic thermal relay and the working parameters of the target motor, and the information interaction with the outside is facilitated while the working current and the working voltage of the motor are collected.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (7)
1. An intelligence electronic type thermal relay which characterized in that: the motor working current acquisition device comprises a data processor, the data processor is connected with a current acquisition module used for acquiring motor working current, the data processor is connected with a voltage acquisition module used for acquiring motor working voltage, the data processor is connected with a control signal output module used for outputting a control signal, and the control signal output module sends the control signal to a loop controller connected in a motor loop.
2. The intelligent electronic thermal relay of claim 1, wherein: when the data acquired by the current acquisition module and the voltage acquisition module are abnormal data, the data processor sends a loop disconnection control signal to the loop controller through the control signal output module.
3. The intelligent electronic thermal relay of claim 1, wherein: the data processor is also connected with an electrical parameter acquisition unit for acquiring all electrical parameters of the motor during working.
4. The intelligent electronic thermal relay of claim 1, wherein: the data processor is connected with an external data interface which is used for supporting multi-stage cascade connection and carrying out data transmission.
5. The intelligent electronic thermal relay of claim 4, wherein: the external data interface supports cascade connection with a plurality of intelligent electronic thermal relays, monitors a plurality of motors and outputs all electrical parameters of the intelligent electronic thermal relays.
6. The intelligent electronic thermal relay of claim 1, wherein: and the data processor is connected with a display for displaying the working state of the intelligent electronic thermal relay and the working parameters of the target motor.
7. The intelligent electronic thermal relay of claim 1, wherein: and the data processor is connected with a key input module for providing local interactive signal acquisition and performing local man-machine communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328878.7A CN110994555A (en) | 2019-12-20 | 2019-12-20 | Intelligent electronic type thermal relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328878.7A CN110994555A (en) | 2019-12-20 | 2019-12-20 | Intelligent electronic type thermal relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994555A true CN110994555A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911328878.7A Pending CN110994555A (en) | 2019-12-20 | 2019-12-20 | Intelligent electronic type thermal relay |
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| CN (1) | CN110994555A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206640296U (en) * | 2016-12-30 | 2017-11-14 | 西安科技大学 | A kind of HV motor protection device |
| CN207082832U (en) * | 2017-07-18 | 2018-03-09 | 北京电联港电器设备有限责任公司 | Intelligent low-pressure comprehensive safety protection device |
-
2019
- 2019-12-20 CN CN201911328878.7A patent/CN110994555A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206640296U (en) * | 2016-12-30 | 2017-11-14 | 西安科技大学 | A kind of HV motor protection device |
| CN207082832U (en) * | 2017-07-18 | 2018-03-09 | 北京电联港电器设备有限责任公司 | Intelligent low-pressure comprehensive safety protection device |
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Application publication date: 20200410 |