CN201118207Y - Split type low-voltage motor protector - Google Patents
Split type low-voltage motor protector Download PDFInfo
- Publication number
- CN201118207Y CN201118207Y CNU2007201739745U CN200720173974U CN201118207Y CN 201118207 Y CN201118207 Y CN 201118207Y CN U2007201739745 U CNU2007201739745 U CN U2007201739745U CN 200720173974 U CN200720173974 U CN 200720173974U CN 201118207 Y CN201118207 Y CN 201118207Y
- Authority
- CN
- China
- Prior art keywords
- control unit
- module
- display unit
- microprocessor
- described control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to the motor field and provides a protection device of a separate low-voltage motor, which comprises a display unit and a control unit; wherein, both the display unit and the control unit comprise a microcomputer, and data transmission is carried out between the microcomputer of the display unit and the microcomputer of the control unit. With the separate structure, the device is convenient for installation, operation and maintenance; furthermore, with double microcomputers, the detection is faster and more reliable.
Description
Technical field
The utility model relates to electric motors, particularly relates to a kind of split type motor Protective Device.
Background technology
Now; along with society and development of technology; the application of motor more and more widely, and motor is because operational environment is relatively poor relatively, motor operates in abnormality following time; may cause the damage of motor; and be not only the damage motor, also can cause the pause of production, even the expansion of accident; and motor is worth higher, and therefore protection and the control to motor just seems more and more important.
In the motor protection technical field, more and more microprocessor Motor Protective Device supervising devices that use.But existing motor Protective Device all is integrated design, that is to say to show and control integratedly, realizes that in the space of an integral body motor Protective Device all is mounted on the switch cabinet panel of normal size usually.In integrated design, the display part is made up of Liquid Crystal Module or charactron and peripheral circuit thereof, control section by power supply, processor, sample circuit, open into circuit, digital output circuit etc. and partly form.Connect by connector between display part and the control section.
There are two problems in this integrated design: the first, and the space of switch cubicle front panel is limited, is to need increasing controlled quentity controlled variable and collection capacity to low-tension motor protection trend, and the volume of motor Protective Device must increase thereupon.Adopt integrated design, the volume of device will be subjected to the constraint in front panel space.Second, increasing of controlled quentity controlled variable and collection capacity, also can increase the processing pressure of processor, use a processor in the device of integrated design, not only bearing heavy data processing task, also to be sent to the display part to information such as the data of real-time collection and unit state, malfunctions and show, so just must influence the processing speed of processor.
The utility model content
The purpose of this utility model provides a kind of motor protecting device, and a kind of split type motor protecting device particularly is provided.
For achieving the above object; the technical solution of the utility model provides a kind of split type motor Protective Device; comprise display unit and control unit; described display unit and control unit include microprocessor, carry out transfer of data between described display unit microprocessor and the described control unit microprocessor.
Wherein, described display unit comprises Liquid Crystal Module and operation panel; Described display unit microprocessor is connected with described Liquid Crystal Module, operation panel, controls described Liquid Crystal Module and carries out display message, and the operation information of operation panel is transferred to described control unit microprocessor.
Wherein, described display unit also comprises display unit reset circuit module, display unit communication module and display unit memory circuitry module; Described display unit reset circuit module is connected with described display unit microprocessor, is used for described display unit microprocessor is resetted; Described display unit communication module is connected with described display unit microprocessor, is used for the transmission of data message; Described display unit memory circuitry module is connected with described display unit microprocessor, is used for the storage to described display unit microprocessor processes data.
Wherein, described control unit also comprises power module, switching input module, control unit reset circuit module, sample circuit module, clock circuit module, relay output module, analog quantity input module, analog output module, failure wave-recording module, PTC (PositiveTemperature Coefficience, positive temperature coefficient) input circuit module, control unit memory circuitry module and control unit communication module; Described power module is used for powering to each electricity consumption module and display unit in the described control unit; Described switching input module is connected with described control unit microprocessor, is used to import the state parameter that detects motor; Described control unit reset circuit module is connected with described control unit microprocessor, is used for described control unit microprocessor is resetted; Described sample circuit module is connected with described control unit microprocessor, is used for voltage, current analog signal are gathered; Described clock circuit module is connected with described control unit microprocessor, is used for the record of temporal information; Described analog quantity input module, be connected with described control unit microprocessor, be used for little electric current is inputed to described control unit microprocessor, described relay output module, be connected with described control unit maintenance processor, be used for described control unit microprocessor control signal output, and described low-tension motor is protected; Described PTC input circuit module is connected with described control unit microprocessor, is used for the motor temperature of described detection motor is detected; Described analog output module is connected with described control unit microprocessor, is used for described little electric current is exported to distribution control system DCS, and described DCS shows the size of current motor operating current; Described failure wave-recording module is connected with described control unit microprocessor, is used to write down the variation of the electric parameter of motor before and after breaking down; Described control unit memory circuitry module is connected with described control unit microprocessor, is used for the storage to described control unit microprocessor processes data; Described control unit communication module is connected with the display unit communication module with described control unit microprocessor, is used for the transmission of data message.
Wherein, described power module is exported 6 groups of voltages.
Wherein, also be provided with expansion interface on the described communication module, be used for and being connected of expansion equipment, carry out the communication of data message.
Wherein, described little size of current be 4mA to 20mA, and linear adjustable, be associated with the analog quantity input signal that is provided with.
Wherein, described control unit communication module also provides the communication interface that is connected with other external devices, is used for being connected with electric power monitoring system, realizes that definite value is revised in distant place switching, a distant place, distant place alarm signal resets.
Wherein, described display unit is connected with described control unit by the RS485 interface.
Above-mentioned utility model technical scheme only is an optimal technical scheme of the present utility model; has following advantage: adopt split-type design; can enlarge the functional module of motor Protective Device; the no longer restriction of office on the space; and make motor Protective Device have more perfect defencive function; and adopt the scheme of dual micro processor, make the motor Protective Device speed of service faster, more stable.
Description of drawings
Fig. 1 is the connection diagram of a kind of split type motor Protective Device of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Below in conjunction with Fig. 1 split type motor Protective Device is described in detail.
Fig. 1 is a kind of split type motor Protective Device connection diagram of the utility model embodiment.As shown in Figure 1, split type motor Protective Device, comprise display unit and control unit, wherein, display unit comprises display unit microprocessor, display unit reset circuit module, display unit memory circuitry module, display unit communication module, Liquid Crystal Module and operation panel; Display unit reset circuit module, display unit memory circuitry module, display unit communication module, Liquid Crystal Module and operation panel all are connected with the display unit microprocessor.Display unit reset circuit module is used for the display unit microprocessor is resetted; The display unit communication module is used for the transmission of data message; Display unit memory circuitry module is used for the storage to the display unit microprocessor processes data, and display unit microprocessor control Liquid Crystal Module carries out display message, and the operation information of operation panel is transferred to the control unit microprocessor.
Control unit comprises power module, switching input module, control unit reset circuit module, sample circuit module, clock circuit module, relay output module, analog quantity input module, analog output module, failure wave-recording module, PTC input circuit module, control unit memory circuitry module and control unit communication module.Power module provides required different voltages for other each functional modules, exports 6 groups of voltages altogether.Switching input module is connected with the control unit microprocessor, is used to import the state parameter that detects motor, and switching input module is isolated back Input Control Element microprocessor with external switch amount signal through photoelectricity; Control unit reset circuit module is connected with the control unit microprocessor, is used for the control unit microprocessor is resetted; The sample circuit module is connected with the control unit microprocessor, is used for voltage, current analog signal are gathered, and the sample circuit module is gathered three-phase voltage, three-phase current and one road leakage current signal; The clock circuit module is connected with the control unit microprocessor, is used for the internal clocking vibration, and the clock circuit module comprises a M41T56 clock integrated chip; Relay output module is connected with the control unit microprocessor with the analog quantity input module, analog quantity output is provided with the employing pulse width modulation mode, the analog quantity input module inputs to the control unit microprocessor with 4mA to little electric current of 20mA, and the control unit microprocessor is protected motor according to little electric current of input; Analog output module is connected with the control unit microprocessor, is used for 4mA is exported to DCS (Distributed Control System, distribution control system) to little electric current of 20mA, and DCS can show the size of current motor operating current intuitively; The failure wave-recording module, be connected with the control unit microprocessor, be used to write down the variation of the electric parameter of motor before and after breaking down, when the failure wave-recording function can break down in system, automatically, the situation of change of the various electric parameters of process before and after the record trouble exactly, by to these electric quantitative analyses, compare, the analyzing and processing accident, judge and whether to protect correct operation, all play an important role improving the safe operation of power system level; PTC input circuit module is connected the motor temperature that is used for detecting motor and detects with the control unit microprocessor; Control unit memory circuitry module is connected with the control unit microprocessor, is used for the storage to the control unit microprocessor processes data, and control unit memory circuitry module is set to the 24LC16B of 5V power supply, I
2C interface, the write-protected memory of 16Kbit data; The control unit communication module is connected with the display unit communication module with the control unit microprocessor, display unit and control unit are coupled together, be used for the transmission of data message between the two, the control unit communication module also provides 2 road RS485 communication expansion interface and CAN or Profibus interface, be used for and being connected of external equipment, be connected with electric power monitoring system, realize that definite value is revised in distant place switching, a distant place, distant place alarm signal resets.The display unit microprocessor is connected with the control unit communication module by the RS485 communication interface, thus with the control unit microprocessor communication, storage in the data storage area, is controlled the required data of Liquid Crystal Module demonstration again.And can input to control unit to the data of the operation of guidance panel and modification by communication interface, parameter is made amendment.
The split type motor Protective Device of present embodiment is not only the product of original integrated design from mechanical structure separately, reaches the split-type design purpose.But after the split design, display unit and control unit all have independent CPU to handle, and two unit can carry out communication.This split type motor Protective Device defencive function is more complete, can be to long protection of starting time, open phase protection, rotation-clogging protection, zero sequence overcurrent protection, unbalance protection of three-phase current, thermal overload protection, process concatenation, t
EThe protection of guardtime, leakage current, underloading protection, PTC protection, analog quantity output protection, rolling electricity restarting and time-delay are immediately restarted.And automaticity is higher, and the independent hardware designs of display unit has been simplified hardware circuit, has strengthened the antijamming capability of device, and the microprocessor independent process makes display interface more humane, and more convenient operation is convenient for users to use.This device also has the high characteristics of accuracy, control unit has been removed the data processing pressure that display unit brings, and can work more reliably, and liberate the microprocessor of control unit, can increase such as very large functions of data processing amount such as record ripples, the sampling precision of analog quantity is also higher.This device reliability height simultaneously, accessory power supply allows 2.5 seconds break periods; Perfect photoelectric isolation technology is all adopted in analog quantity input, switching value input and protection output, thereby has further improved the fail safe and the reliability of device.
As can be seen from the above embodiments, the utility model embodiment is by employing split structural design, and the employing dual micro processor, has not only solved the contradiction of motor Protective Device volume and installing space, but also is convenient to installation, operation and maintenance.Can directly realize the input of protecting and withdraw from by computer, directly read the recorded broadcast data, convenient and reliable to the protection of low-tension motor.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1, a kind of split type motor Protective Device; comprise display unit and control unit; it is characterized in that described display unit and control unit include microprocessor, carry out transfer of data between described display unit microprocessor and the described control unit microprocessor.
2, split type motor Protective Device as claimed in claim 1 is characterized in that, described display unit comprises Liquid Crystal Module and operation panel; Described display unit microprocessor is connected with described Liquid Crystal Module, operation panel, controls described Liquid Crystal Module display message, and the operation information of operation panel is transferred to described control unit microprocessor.
3, split type motor Protective Device as claimed in claim 2 is characterized in that, described display unit also comprises display unit reset circuit module, display unit communication module and display unit memory circuitry module;
Described display unit reset circuit module is connected with described display unit microprocessor, is used for described display unit microprocessor is resetted;
Described display unit communication module is connected with described display unit microprocessor, is used for the transmission of data message;
Described display unit memory circuitry module is connected with described display unit microprocessor, is used for the storage to described display unit microprocessor processes data.
4, split type motor Protective Device as claimed in claim 1, it is characterized in that described control unit also comprises power module, switching input module, control unit reset circuit module, sample circuit module, clock circuit module, relay output module, analog quantity input module, analog output module, failure wave-recording module, PTC input circuit module, control unit memory circuitry module and control unit communication module;
Described power module is used for powering to each electricity consumption module and display unit in the described control unit;
Described switching input module is connected with described control unit microprocessor, is used to import the state parameter that detects motor;
Described control unit reset circuit module is connected with described control unit microprocessor, is used for described control unit microprocessor is resetted;
Described sample circuit module is connected with described control unit microprocessor, is used for voltage, current analog signal are gathered;
Described clock circuit module is connected with described control unit microprocessor, is used for the record of temporal information;
Described relay output module is connected with described control unit microprocessor, is used for described control unit microprocessor control signal output, and described low-tension motor is protected;
Described analog quantity input module is connected with described control unit microprocessor, is used for little electric current is inputed to described control unit microprocessor;
Described analog output module is connected with described control unit microprocessor, is used for described little electric current is exported to distribution control system DCS, and described DCS shows the size of current motor operating current;
Described PTC input circuit module is connected with described control unit microprocessor, is used for the motor temperature of described detection motor is detected;
Described failure wave-recording module is connected with described control unit microprocessor, is used to write down the variation of the electric parameter of motor before and after breaking down;
Described control unit memory circuitry module is connected with described control unit microprocessor, is used for the storage to described control unit microprocessor processes data;
Described control unit communication module is connected with the display unit communication module with described control unit microprocessor, is used for the transmission of data message.
5, split type motor Protective Device as claimed in claim 4 is characterized in that, described power module is exported 6 groups of voltages.
6, split type motor Protective Device as claimed in claim 4 is characterized in that, also is provided with expansion interface on the described communication module, is used for and being connected of expansion equipment, and carries out the communication of data message.
7, split type motor Protective Device as claimed in claim 4 is characterized in that, described little size of current be 4mA to 20mA, and linear adjustable, be associated with the analog quantity input signal that is provided with.
8, split type motor Protective Device as claimed in claim 4; it is characterized in that; described control unit communication module also provides the communication interface that is connected with other external devices; be used for being connected, realize that definite value is revised in distant place switching, a distant place, distant place alarm signal resets with electric power monitoring system.
9, split type motor Protective Device as claimed in claim 1 is characterized in that, described display unit is connected with described control unit by the RS485 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201739745U CN201118207Y (en) | 2007-11-02 | 2007-11-02 | Split type low-voltage motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201739745U CN201118207Y (en) | 2007-11-02 | 2007-11-02 | Split type low-voltage motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118207Y true CN201118207Y (en) | 2008-09-17 |
Family
ID=39992796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201739745U Expired - Fee Related CN201118207Y (en) | 2007-11-02 | 2007-11-02 | Split type low-voltage motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118207Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452665A (en) * | 2008-12-29 | 2009-06-10 | 浙江中凯科技股份有限公司 | Display and control device for low-voltage apparatus |
| CN103022974A (en) * | 2012-11-23 | 2013-04-03 | 安徽鑫龙电器股份有限公司 | Protection device for split type motor |
| CN104184391A (en) * | 2014-09-13 | 2014-12-03 | 安徽鑫龙电器股份有限公司 | Split type motor controller |
| CN107065720A (en) * | 2017-04-20 | 2017-08-18 | 哈尔滨理工大学 | Intelligent electric machine failure wave-recording early warning system |
| CN113270849A (en) * | 2021-05-18 | 2021-08-17 | 鲁西工业装备有限公司 | Low-voltage protection calibration device and calibration method |
-
2007
- 2007-11-02 CN CNU2007201739745U patent/CN201118207Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452665A (en) * | 2008-12-29 | 2009-06-10 | 浙江中凯科技股份有限公司 | Display and control device for low-voltage apparatus |
| CN103022974A (en) * | 2012-11-23 | 2013-04-03 | 安徽鑫龙电器股份有限公司 | Protection device for split type motor |
| CN104184391A (en) * | 2014-09-13 | 2014-12-03 | 安徽鑫龙电器股份有限公司 | Split type motor controller |
| CN107065720A (en) * | 2017-04-20 | 2017-08-18 | 哈尔滨理工大学 | Intelligent electric machine failure wave-recording early warning system |
| CN113270849A (en) * | 2021-05-18 | 2021-08-17 | 鲁西工业装备有限公司 | Low-voltage protection calibration device and calibration method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201118207Y (en) | Split type low-voltage motor protector | |
| US9885739B2 (en) | Intelligent electronic device capable of operating as a USB master device and a USB slave device | |
| CN104198935B (en) | A kind of dynamic pressure parameter of electric machine monitoring system and the method for monitoring | |
| CN103427123A (en) | Method for using battery capacity to maximum degree and hand-held terminal | |
| CN202110032U (en) | Vacuum degree online monitoring device and vacuum degree online monitoring system | |
| CN110908321A (en) | Data acquisition device for steam turbine set sensor | |
| CN203377352U (en) | Power management circuit and hand-held terminal | |
| CN110554228A (en) | method and system for recording uncovering detection of stop running state of electric meter | |
| CN103424148A (en) | Vehicle and on-line monitoring system of electric fan for vehicle | |
| CN203135305U (en) | Intelligent precise power distribution cabinet | |
| CN101604278B (en) | Method for testing power supply of USB connection port | |
| CN107196409B (en) | Intelligent controller of circuit breaker | |
| CN211481002U (en) | Monitoring terminal for low-voltage metering box | |
| CN103019280A (en) | Temperature monitoring device for multi-contact temperature measurement | |
| CN208752958U (en) | The under-voltage protecting circuit and embedded system of storage chip | |
| CN203025277U (en) | Domestic power energy quality monitoring device | |
| CN202017614U (en) | Integrated protector for spiral submersible pump | |
| CN201674219U (en) | Intelligent arc-light protection device | |
| CN112653169A (en) | Online remote monitoring device for main pump of converter station valve cooling system | |
| CN101788832A (en) | Integral and intelligent temperature and humidity monitoring controller | |
| CN204271637U (en) | Intelligent arc suppression controller, the arc suppression coil device of compatible capacitor tuning type and magnetic biasing type | |
| CN204333928U (en) | A kind of motor with multinomial automatic protection functions | |
| CN218455758U (en) | Electric energy quality analyzer and system thereof | |
| CN215870736U (en) | Protection device and earphone box | |
| CN202888810U (en) | Capacitor protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20131102 |