CN101826826A - Intelligent motor control cabinet - Google Patents
Intelligent motor control cabinet Download PDFInfo
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- CN101826826A CN101826826A CN200910037644A CN200910037644A CN101826826A CN 101826826 A CN101826826 A CN 101826826A CN 200910037644 A CN200910037644 A CN 200910037644A CN 200910037644 A CN200910037644 A CN 200910037644A CN 101826826 A CN101826826 A CN 101826826A
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Abstract
The invention provides an intelligent motor control cabinet, which realizes the functions of a cage-type motor such as soft starting, soft stopping, full-voltage running, automatic control, automatic protection and the like, can optimize the starting way and the control protection of the motor, and comprises a cabinet body, a display part, a man-machine dialog part and a control part, wherein both the display part and the man-machine dialog part are electrically connected with the control part; the control part comprises a single chip microcomputer control host and control device, a data display module, a power source and a man-machine dialog module; the single chip microcomputer control host and control device comprises a single chip microcomputer control host, a motor data collection input module and a motor data output module; and the motor data output module comprises an electronic-type combination switch, and the electronic-type combination switch comprises one or more groups of thyristors and AC contactors, which are connected with each other in parallel.
Description
Technical field
The invention belongs to Electric Traction, Motor Control field, be specifically related to a kind of intelligent motor control cabinet.
Background technology
In the modern industry production application, various motor are the power resources that drive industrial equipment.Particularly cage type asynchronous motor is wherein most widely used power consumption equipment.The load of low voltage electric network has nearly 80% to be the asynchronous motor and the synchronous motor of all kinds power.Because the variation of the problem that exists in this body structure of motor, service condition, using method or improper, motor will produce fault, and serious fault will cause burning of motor.Therefore, the start mode of motor and safe and reliable safeguard measure are very important to realizing motor long-term safety, stable operation.
The decompression starting equipment of traditional type (as star-triangle reduced-voltage starter, autotransformer reduced-voltage starter etc.), and modern " electronic type soft starter "+" control appliance " and the motor control system that is combined into etc.All exist following a lot of deficiency:
■ traditional type starter, its start mode are notch cuttype, so the electric current during motor starting, are step-like mutation currents, still electrical network are had certain shock effect.And the funds costliness, bulky, consume non-ferrous metal in a large number.Control mode is an electromechanical type, and starting effect does not reach the requirement of modern electric power system.
Contemporary " electronic type soft starter "+" control appliance " of ■ and the motor control system that is combined into.Because " soft starter of electronic type " model, specification, of a great variety are chosen very difficulty of configuration, change very inconvenience.Complex structure, wiring is cumbersome, and price is expensive more.
Therefore, how correctly use or, guarantee the smooth and easy operation that enterprise produces, thereby bring into play the life period of equipment cost to greatest extent by optimizing motor starting system and control protection.Here it is of the present invention pursuing one's goal.
Summary of the invention
The object of the present invention is to provide a kind of intelligent motor control cabinet, realized cage electromotor soft start, softly stop, full voltage operation, control and function such as protection automatically automatically, can optimize motor starting system and control is protected.
The present invention is achieved through the following technical solutions:
Intelligent motor control cabinet includes: cabinet, display unit, human-computer dialogue parts and control assembly, and described display unit and human-computer dialogue parts all are electrically connected with control assembly; Wherein, described control assembly includes: controlled by single chip microprocessor main frame and control device, data disaply moudle, power supply and human-computer dialogue module; Described controlled by single chip microprocessor main frame and control device include: controlled by single chip microprocessor main frame, motor data are gathered input module and motor data output module; Described human-computer dialogue parts and human-computer dialogue module are electrically connected, and to described controlled by single chip microprocessor main frame input data; Described power supply links to each other with described controlled by single chip microprocessor main frame and carries power supply; Described display unit and data disaply moudle are electrically connected, and described controlled by single chip microprocessor main frame is to described data disaply moudle output motor service data; Described motor data acquisition module is gathered the input port by motor data and is carried the motor service data to described controlled by single chip microprocessor main frame; Described controlled by single chip microprocessor main frame passes through the motor data delivery outlet to motor data output module output motor real time control command; Described motor data output module includes: a kind of electronic type combination switch, described electronic type combination switch includes: thyristor and A.C. contactor that a group or more is in parallel and connects.
To sum up, the invention has the beneficial effects as follows:
Intelligent motor control cabinet of the present invention, essence are a kind of " full intelligent electronic AC contact-less switch low pressure (for example: 0.4KV) motor control cabinet ".It is a multimachine system; adopt single chip microcomputer as main control system; and adopt high-power thyristor and high power AC contactor to compose in parallel " large power, electrically minor combination switch " simultaneously; make the master switch of motor control cabinet, with the soft start that realizes cage electromotor, softly stop, full voltage operation, control and function such as protection automatically automatically.
Intelligent motor control cabinet of the present invention has substituted traditional, " the star one triangle reduced-voltage starter " that the starting control cubicle adopted and " autotransformer reduced-voltage starter " of electromechanical etc.Also substituted simultaneously contemporary: the motor control system that " electronic type soft starter "+" motor controller of traditional type " formed.
Intelligent motor control cabinet of the present invention has been abandoned the starting means of the traditional electromechanical of cage electromotor, has merged contemporary " electronic type soft starter and control appliance ", and both are combined together.Thereby, making product with compact structure, motor and Dian Yuan Even line are simpler, and control operation is convenient, and performance is more perfect, and is more safe and reliable.
The motor control cabinet that adopts above-mentioned " large power, electrically minor combination switch " to be formed has following four characteristics:
The first, compact conformation, controlled function is complete, and existing soft start function (starting on hill) also has soft start to stop, but more across-the-line starting also has perfect defencive function (as overload, short circuit, phase shortage, low pressure, superpressure etc.).
The second, intelligent degree height comprises that display part, measure portion, control section, protection part realize by Control System of Microcomputer.
The 3rd, it is a stepless adjusting system, the use power of motor, and the user can carry out freely setting with any one interior power parameter value at the rated power of the full intelligent motor control cabinet of choosing.The utilance that this has just saved the use cost of product widely and has improved product significantly, the many kinds and the specification of having dwindled product more help the large-scale production of modernization, industrialization.
The 4th, easy and simple to handle, safe and reliable, there is not impulse current during starting, there is not superpotential pollution in the pass stopping time yet, does not more have the melting welding and the arcing of contact.
Description of drawings
Fig. 1 is an intelligent motor control cabinet Control System of Microcomputer frame structure schematic diagram of the present invention;
Fig. 2 is an intelligent motor control cabinet control system general diagram of the present invention;
Fig. 3 is an intelligent motor control cabinet overall structure schematic diagram of the present invention;
Fig. 4 is an intelligent motor control cabinet sectional structure schematic diagram of the present invention;
Fig. 5 is an intelligent motor control cabinet display panel structure schematic diagram of the present invention;
Fig. 6 is an intelligent motor control cabinet diaphragm structure schematic diagram of the present invention;
Fig. 7 is a circuit control principle of an intelligent motor control cabinet motor of the present invention schematic diagram.
Description of reference numerals:
1, cabinet, 2, the amp-second curve chart window of motor, 3, the liquid crystal display glass window, 4, the person-machine dialogue key groups: power key 41, power add key 42, and power subtracts key 43, stop key 44, across-the-line starting key 45, soft start key 46.5; display lamp, 6; catch, 7; the liquid crystal display printed board; 71; liquid crystal display screen, 72; the fault alarm indicator light, 73; printed wiring figure; 8; dividing plate; 81; motor data is gathered input module printed wiring board, 82; controlled by single chip microprocessor main frame printed wiring board, 83; control power protection printed wiring board; 90; the electronic type combination switch; 91; low-voltage circuit breaker, 92; Current Transformer Assembly, 921; measure current transformer; 922; the protective current instrument transformer; 93; copper bus-bar, 94; thyristor, 95; A.C. contactor; 96; motor; 97; low-tension fuse, 981; pressure-sensitive lightning arrester, 99; the voltage signal instrument transformer.
Embodiment
The present invention discloses a kind of intelligent motor control cabinet, shown in Fig. 1,3, includes: cabinet 1, display unit, human-computer dialogue parts and control assembly, and described display unit and human-computer dialogue parts all are electrically connected with control assembly; Wherein, described control assembly includes: controlled by single chip microprocessor main frame and control device, data disaply moudle, power supply and human-computer dialogue module; Described controlled by single chip microprocessor main frame and control device include: controlled by single chip microprocessor main frame, motor data are gathered input module, motor data output module and control device of electric motor; Described human-computer dialogue parts and human-computer dialogue module are electrically connected, and to described controlled by single chip microprocessor main frame input data; Described control power supply links to each other with described controlled by single chip microprocessor main frame and carries power supply; Described display unit and data disaply moudle are electrically connected, and described controlled by single chip microprocessor main frame is to described data disaply moudle output motor service data; Described motor data acquisition module is gathered the input port by motor data and is carried the motor service data to described controlled by single chip microprocessor main frame; Described controlled by single chip microprocessor main frame passes through the motor data delivery outlet to motor data output module output motor real time control command; Described control device of electric motor includes: electronic type combination switch 90, described electronic type combination switch 90 includes thyristor 94 and A.C. contactor 95 that being in parallel of a group or more connects.
Shown in Fig. 1,2,4,7, described controlled by single chip microprocessor main frame and thyristor 94 and A.C. contactor 95 are electrically connected respectively, and described controlled by single chip microprocessor main frame is respectively to thyristor 94 and A.C. contactor 95 output motor real time control command; Described motor data is gathered input module and is included: voltage signal instrument transformer 99, measurement current transformer 921 and protective current instrument transformer 922; Described voltage signal instrument transformer 99, measurement current transformer 921 and protective current instrument transformer 922 are electrically connected with described controlled by single chip microprocessor main frame respectively, and carry the motor service data to the controlled by single chip microprocessor main frame.
Exchange 380V three-phase incoming power, by copper bus-bar 93, there is the three-phase branch road to connect each phase circuit of power line respectively, each branch road has included: low-voltage circuit breaker 91, Current Transformer Assembly 92, electronic type combination switch 90, and described low-voltage circuit breaker 91, Current Transformer Assembly 92, electronic type combination switch 90 adopt the mode of series connection to connect; Described electronic type combination switch 90 directly exports user load motor 96 to; Be that delta connection or star-star connection all are suitable for during motor 96 operations; Described Current Transformer Assembly 92 includes: measurement current transformer 921 that is connected in parallel and protective current instrument transformer 922.
The output of described low-voltage circuit breaker 91 is connected respectively with described voltage signal instrument transformer 99 and a low-tension fuse 97; The output of described low-tension fuse 97 is connected with a pressure-sensitive lightning arrester 981; The other end of described voltage signal instrument transformer 99 connects described controlled by single chip microprocessor main frame.
For guaranteeing the accuracy of microcomputer to current sample, specially installed the current transformer of protection usefulness in the major loop additional, the motor running current is carried out online detection.Therefore, system is quite accurate and reliable to overcurrent protection, the short-circuit protection of motor.
Shown in Fig. 1,3, described control assembly is a multi-machine control system, described controlled by single chip microprocessor main frame adopts controlled by single chip microprocessor, and motor data is gathered input module, motor data output module, data disaply moudle and all adopted own independent single chip microcomputer to finish separately controlled function; Wherein Kong Zhi core component is the controlled by single chip microprocessor main frame, and described controlled by single chip microprocessor main frame is equipped with the system control module and the system applies module of special designs, and it takes on the functions such as coordination, management, control and communication of each functional block of The whole control system.The full course of work of The whole control parts is such:
Gather input module by motor data earlier, after data acquisition, calculation process, deliver to the controlled by single chip microprocessor main frame, through the controlled by single chip microprocessor main frame data of sending here are carried out computing, storage, contrast, judgment processing, deliver to data disaply moudle again, described data disaply moudle is to show the various operational factors of motor simultaneously with digital form.
At this moment; the controlled by single chip microprocessor main frame also is transported to control data the motor data output module simultaneously; after described motor data output module carries out data processing; data are outputed to the electronic type combination switch, directly control motor soft start, softly stop, full voltage operation and motor carried out various safety protection control etc.
As shown in Figure 3, the front of described cabinet 1 is provided with display floater, on the described display floater display unit is installed, and described display unit includes: one or more liquid crystal indicator.
Described display unit includes: be positioned at amp-second curve chart window 2 of the motor on display floater top, be positioned at the liquid crystal display glass window 3 of amp-second curve chart window of described motor 2 belows; Described liquid crystal display glass window 3 belows are provided with a plurality of display lamps 5 and human-computer dialogue parts.
The human-computer dialogue parts include: be arranged on the person-machine dialogue key groups 4 of described display floater lower position, described person-machine dialogue key groups 4 includes: power key 41, power add key 42, power subtracts key 43, stop key 44, across-the-line starting key 45, soft start key 46.
The below of described person-machine dialogue key groups 4 also is provided with catch 6.
By person-machine dialogue key groups 4, data are directly sent into the controlled by single chip microprocessor main frame, to realize " the stepless setting " of motor power (output) and to carry out soft start, across-the-line starting, controlled function such as stop.Any one set point of motor power (output) all belongs to the control of motor " amp-second curve " and protects category." stepless setting " this function has been arranged, thereby overcome the type selecting of traditional type control appliance: the control appliance of choosing, the strict out-moded convention that is complementary one to one with power consumption equipment.Simplified the specification of control appliance widely, improved the utilance of control appliance and saved resource.
As shown in Figure 4, liquid crystal display glass window 3 back sides of described intelligent motor control cabinet are provided with the data disaply moudle printed board, i.e. liquid crystal display printed board 7; The back side of display floater is provided with dividing plate 8.
Low-voltage circuit breaker 91, Current Transformer Assembly 92, electronic type combination switch 90 and copper bus-bar 93 all are set in place in the inner chamber of cabinet 1 latter half of.
As shown in Figure 5, described liquid crystal display printed board 7 includes: one or more liquid crystal display screen 71, be positioned at a plurality of fault alarm indicator lights 72 and printed wiring Figure 73 of described liquid crystal display screen 71 tops.
As shown in Figure 6, described dividing plate 8 includes three printed wiring boards: superposed motor data is gathered input module seal wiring board 81, is positioned at the controlled by single chip microprocessor main frame printed wiring board 82 at middle part and is positioned at the printed wiring board 83 that the bottom is used as the control power protection.
" large power, electrically minor combination switch " among the present invention:
Adopt high-power thyristor and high power AC contactor to be in parallel, be combined into " large power, electrically minor combination switch ".Its operation principle is as described below:
Thyristor is a semi-conductor electronic device, by the gate pole control signal, takes zero cross fired, powers to motor with complete sine wave, thereby has replaced the contact switch of traditional type.Adopt thyristor here so long as in order to improve the electricity quality of using of motor, suppress motor, make the mains supply system safer, more reliable in impulse current and the overvoltage opening, stop in the process to be produced.As everyone knows, the harmonic pollution of electrical network, major part is to cause from opening, stopping of user power utilization equipment.
After adopting thyristor control (also having only thyristor could realize this function at present), " voltage is taked zero cross fired (then passing zero trigger) " and " electric current is taked zero-crossing switching, " have fundamentally been stopped motor and have been produced big electric current to the pollution to electrical network of the impact of electrical network and overvoltage in the process that opens, stops.Because it is open-minded that power consumption equipment is controlled at no-voltage, this moment, electric current also was zero beginning, did not have the impact of big electric current.If voltage is not passing zero trigger, all the other any moment conductings all the non-sinusoidal waveform electric current can occur, nothing more than be size and.About the pollution of overvoltage to electrical network, mainly come from inductive load, in case electric current interrupts suddenly, the inductance of energy storage device will produce great back-emf.Thereby, electrical network is produced very big overvoltage impact (can up to 3 one 5 times) to rated voltage.Press the formula that back-emf produces:
E=-Mdi/dt, wherein:
E-back-emf (V) ,-M are constant (opposite with voltage direction),
The sudden change amount of di/dt-electric current.
This shows that when thyristor adopted current over-zero to turn-off, be again big inductive load (motor is an inductive load) this moment at long last, the back-emf of its generation also is zero, because di/dt=0.There is not superpotential problem.
Here it is adopts one of reason of thyristor conduct " combination switch ".Because thyristor is a semi-conductor electronic device, its electric current is the electron stream of device inside, does not belong to the electric current that is in contact with one another between two metal contact, thereby thyristor belongs to " noncontacting switch ".
" large power, electrically minor combination switch " among the present invention:
Because A.C. contactor is the electric current of two metal contact contacts, easily produce melting welding and spark even arcing between two contacts, the easier phase fault that causes when arcing is serious causes accident of power supply.And its advantage is: it is very low to contact impedance between two metal contact, and therefore, it is low to consume energy during work, and is difficult for heating.Just because of this, the present invention adopt A.C. contactor as " electronic type combination switch " former therefore two.
The present invention is thyristor and A.C. contactor parallel connection, be combined into " electronic type combination switch " after, so just can give full play to the two advantage, overcome the two defective.
The service behaviour of " electronic type combination switch " is such:
Because the electric current that thyristor device stream passes through is an internal electron stream, there are not contact problems, more do not have arcing and spark and occur, and switching speed is fast, but frequent operation.Because it is a controllable devices, does not have problems such as rush of current and overvoltage interference in the process of open and close fully.But thyristor also exists weak point: certain device pressure drop is then arranged when the thyristor conducting, thereby when work thyristor easily generate heat, have certain energy consumption.
" electronic type combination switch " after the combination then got its both advantage, overcomes shortcoming separately.When conducting, pilot thyristor is logical, connects behind the A.C. contactor.During disconnection, A.C. contactor is disconnected earlier, and is disconnected behind the thyristor.During connecting at ordinary times, both equal conductings by name, but in fact are because the impedance of the impedance of A.C. contactor Jie Tong Time during much smaller than the thyristor conducting.So Zai Ping Time normally moves both's conduction period, most load currents carry by contactor.Therefore, thyristor is in the process of work, and energy consumption is also just quite few, not needs to add special heat abstractor.By above-mentioned combination, when conducting, both can pass through big electric current, and have the low-power consumption advantage of traditional type.When turn-offing, neither there be of the impact of big electric current simultaneously, also do not have of the pollution of high back-pressure, more contact melted and arcing can not occur, then have (contactless) advantage of contemporary electronic type electrical network to electrical network.Here it is contemporary and traditional " the large power, electrically minor combination switch " that combines of our so-called a new generation.
To sum up, a kind of intelligent motor control cabinet of disclosure of the Invention, its feature is as follows:
One, complete intelligent:
The display part of product, measure portion, control section, protection part realize by microcomputer control system.Control Technique of Microcomputer has substituted the electromechanical type instrument and meter of traditional type.Thereby, realized the full intellectuality of low-tension motor control cubicle.
Two, the realization oncontacting is revealed:
Among the present invention, the soft start of motor, softly stop, full voltage operation, control and function such as protection automatically automatically.Realize by " electronic type combination switch " operation." electronic type combination switch " is made up of high-power thyristor and high power AC contactor institute in parallel.It has substituted traditional " star-triangle decompression starting mode, autotransformer decompression starting mode ", has also substituted the contemporary motor control system that " E-communication soft starter "+" motor controller " formed.Owing to adopt thyristor, directly control the soft start of motor, soft stopping and function such as error protection.Therefore, adopt contactless control to replace traditional type that the control mode of the A.C. contactor and the low-voltage circuit breaker of contact is arranged.
Three, have level and smooth, stable start-up function:
Because soft start (being starting on hill) is realized at the triggering and conducting angle of adopting microcomputer to change thyristor, thereby makes electrical motors arrive level and smooth, stable start-up function.
Four, have perfect defencive function:
Because what adopt is Control System of Microcomputer, thereby, quite perfect to the defencive function of motor.Control system has overload protection, short-circuit protection, open-phase protection, low-voltage variation, overpressure protection etc.
Five, it is " stepless setting " system:
By " the person-machine dialogue key groups " that is provided with; motor power (output) can be realized " stepless setting; " be that the user can set according to selected motor actual power; any one set point; (what for example the user bought is that rated power is the full intelligent motor control cabinet of 100KW, and promptly the user can set by any one power parameter value between 10KW to 100KW all to belong to the control of motor " amp-second curve " and protection category.The power setting scope is quite wide, uses also very convenient).
Above-mentioned listed specific implementation is nonrestrictive, to one skilled in the art, is not departing from the scope of the invention, and various improvement and the variation carried out all belong to protection scope of the present invention.
Claims (10)
1. intelligent motor control cabinet includes: cabinet (1), display unit, human-computer dialogue parts and control assembly; Described display unit and human-computer dialogue parts all are electrically connected with control assembly, it is characterized in that: described control assembly includes: controlled by single chip microprocessor main frame and control device, data disaply moudle, power supply and human-computer dialogue module; Described controlled by single chip microprocessor main frame and control device include: controlled by single chip microprocessor main frame, motor data are gathered input module, motor data output module and control device of electric motor; Described human-computer dialogue parts and human-computer dialogue module are electrically connected, and to described controlled by single chip microprocessor main frame input data; Described power supply links to each other with described controlled by single chip microprocessor main frame and carries power supply; Described display unit and data disaply moudle are electrically connected, and described controlled by single chip microprocessor main frame is to described data disaply moudle output motor service data; Described motor data acquisition module is gathered the input port by motor data, carries the motor service data to described controlled by single chip microprocessor main frame; Described controlled by single chip microprocessor main frame is by the motor data delivery outlet, to motor data output module output motor real time control command; Described control device of electric motor includes: electronic type combination switch (90), described electronic type combination switch (90) include a group or more the thyristor (94) and the A.C. contactor (95) that are in parallel and connect.
2. intelligent motor control cabinet according to claim 1, it is characterized in that: described controlled by single chip microprocessor main frame and thyristor (94) and A.C. contactor (95) are electrically connected respectively, and described controlled by single chip microprocessor main frame is respectively to thyristor (94) and A.C. contactor (95) output motor real time control command; Described motor data is gathered input module and is included: voltage signal instrument transformer (99), measurement current transformer (921) and protective current instrument transformer (922); Described voltage signal instrument transformer (99), measurement current transformer (921) and protective current instrument transformer (922) are electrically connected with described controlled by single chip microprocessor main frame respectively, and carry the motor service data to the controlled by single chip microprocessor main frame.
3. intelligent motor control cabinet according to claim 2, it is characterized in that: exchange 380V three-phase incoming power, by copper bus-bar (93), there is the three-phase branch road to connect each phase circuit of power line respectively, each branch road has included: low-voltage circuit breaker (91), Current Transformer Assembly (92), electronic type combination switch (90), and described low-voltage circuit breaker (91), Current Transformer Assembly (92), electronic type combination switch (90) adopt the mode of series connection to connect; Described three-phase branch road by electronic type combination switch (90), directly exports user load motor (96) to respectively; Adopt delta connection or star-star connection during described motor (96) operation; Described Current Transformer Assembly (92) includes: the current transformer (922) that is connected in parallel and makes measuring current transformer (921) and make protection usefulness.
4. intelligent motor control cabinet according to claim 3 is characterized in that: the output of described low-voltage circuit breaker (91) is connected respectively with a described voltage signal instrument transformer (99) and a low-tension fuse (97); The output of described low-tension fuse (97) is connected with a pressure-sensitive lightning arrester (981); The other end of described voltage signal instrument transformer (99) connects described controlled by single chip microprocessor main frame.
5. according to any one described intelligent motor control cabinet in the claim 1 to 4, it is characterized in that: the front of described cabinet (1) is provided with display floater, on the described display floater display unit is installed, described display unit includes: one or more liquid crystal indicator; Described display unit includes: be positioned at amp-second curve chart window (2) of the motor on display floater top, be positioned at the liquid crystal display glass window (3) of amp-second curve chart window (2) of described motor below; Described liquid crystal display glass window (3) below is provided with a plurality of display lamps (5) and human-computer dialogue parts.
6. intelligent motor control cabinet according to claim 5, it is characterized in that: described human-computer dialogue parts include: be arranged on the person-machine dialogue key groups (4) in described display floater centre position, described person-machine dialogue key groups (4) includes: power key (41), power add key (42), power subtracts key (43), stop key (44), across-the-line starting key (45) and soft start key (46).
7. intelligent motor control cabinet according to claim 6 is characterized in that: liquid crystal display glass window (3) back side of described intelligent motor control cabinet is provided with the data disaply moudle printed board, i.e. liquid crystal display printed board (7); The back side of described display floater is provided with dividing plate (8).
8. intelligent motor control cabinet according to claim 7 is characterized in that: described low-voltage circuit breaker (91), Current Transformer Assembly (92), electronic type combination switch (90) and copper bus-bar (93) all are set in place in the inner chamber of cabinet (1) latter half of.
9. intelligent motor control cabinet according to claim 7 is characterized in that: described liquid crystal display printed board (7) includes: one or more liquid crystal display screen (71), be positioned at a plurality of fault alarm indicator lights (72) and the print pattern (73) of described liquid crystal display screen (71) top.
10. intelligent motor control cabinet according to claim 7 is characterized in that: described dividing plate (8) includes three printed wiring boards: what superposed motor data was gathered input module printed wiring board (81), is positioned at the controlled by single chip microprocessor main frame printed wiring board (82) at middle part and is positioned at the bottom is the printed wiring board (83) that the control power supply is made protection usefulness.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910037644A CN101826826A (en) | 2009-03-06 | 2009-03-06 | Intelligent motor control cabinet |
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| CN200910037644A CN101826826A (en) | 2009-03-06 | 2009-03-06 | Intelligent motor control cabinet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378769A (en) * | 2012-04-18 | 2013-10-30 | 王运 | Power saving controller for motor |
| CN108432075A (en) * | 2016-01-28 | 2018-08-21 | 伊顿智能动力有限公司 | Including protecting the motor starting machine with monitoring function |
| CN108994626A (en) * | 2017-06-06 | 2018-12-14 | 上海滨捷机电有限公司 | Numerically-controlled machine tool electric control cabinet |
| CN109388076A (en) * | 2017-08-02 | 2019-02-26 | 珠海市伏安达电子科技有限公司 | Intelligent contactless flame-proof switch |
-
2009
- 2009-03-06 CN CN200910037644A patent/CN101826826A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378769A (en) * | 2012-04-18 | 2013-10-30 | 王运 | Power saving controller for motor |
| CN103378769B (en) * | 2012-04-18 | 2017-04-12 | 王运 | Power saving controller for motor |
| CN108432075A (en) * | 2016-01-28 | 2018-08-21 | 伊顿智能动力有限公司 | Including protecting the motor starting machine with monitoring function |
| CN108432075B (en) * | 2016-01-28 | 2020-08-14 | 伊顿智能动力有限公司 | Motor starter comprising protection and monitoring functions |
| US10778000B2 (en) | 2016-01-28 | 2020-09-15 | Eaton Intellectual Power Limited | Electronic motor starter |
| CN108994626A (en) * | 2017-06-06 | 2018-12-14 | 上海滨捷机电有限公司 | Numerically-controlled machine tool electric control cabinet |
| CN109388076A (en) * | 2017-08-02 | 2019-02-26 | 珠海市伏安达电子科技有限公司 | Intelligent contactless flame-proof switch |
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Application publication date: 20100908 |