CN101499355B - Magnet protection system for power fail of electromagnet - Google Patents
Magnet protection system for power fail of electromagnet Download PDFInfo
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- CN101499355B CN101499355B CN2008102282187A CN200810228218A CN101499355B CN 101499355 B CN101499355 B CN 101499355B CN 2008102282187 A CN2008102282187 A CN 2008102282187A CN 200810228218 A CN200810228218 A CN 200810228218A CN 101499355 B CN101499355 B CN 101499355B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a magnetic protecting system after the electromagnet loses electricity, comprising an operation and display unit, a charging module 3-phase bridge, an electricity storage circuit, a processing unit and an H bridge IGBT unit; when magnetic property is absorbed and protected, the processing unit sends a positive conductive pulse to the H bridge IGBT unit so as to positively load the voltage at the two ends of the battery onto an electromagnetic disc; and when the magnetic property is released and protected, the processing unit sends a negative conductive pulse to the H bridge IGBT unit so as to reversely load the voltage at the two ends of the battery onto the electromagnetic disc. The method for releasing and protecting the magnetic property comprises the following steps: firstly, the magnetic protecting system carries out real time monitoring to the voltage at the two ends of the electromagnetic disc; when the voltage at the two ends of the electromagnetic disc is lower than a set valve, the battery loads reverse voltage to the two ends of the electromagnetic disc; and after the magnetic releasing and protecting time reaches a set value, the voltage loading to the electromagnetic disc should be stopped. The system is characterized by easy operation and convenient maintenance, and the like, and is suitable to be widely promoted in the fields where electromagnets are used for industrial production.
Description
Technical field
The present invention relates to the guarantor's magnetic system after a kind of electromagnet power down, relate in particular to and a kind ofly after the civil power power down, utilize storage battery that electromagnet is inhaled magnetic to protect magnetic or put magnetic and protect magnetic system.
Background technology
It is cabinet type that original industry spot is all made screen with electromagnetic disc control guarantor magnetic part, volume is big, heavy, not attractive in appearance, wiring board and power component all expose outside, very easily be subjected to the influence of site environment, the industry spot environment is extremely abominable, dust pollution is very big, be easy to just have copper, iron filings to fall element surface, long-term accumulated takes place electric or the electronic circuit short circuit easily, causes components and parts to damage, and components and parts all expose outside, without any interference protection measure, misoperation rate height is caused danger easily.Their circuit board all is analog quantity control, be easy to take place temperature and float phenomenon, and intuitive is poor, difficult in maintenance, when breaking down, the on-site maintenance personnel do not know how to set about, the test that can only carry out each point by rule of thumb comes the failure judgement point, and some test need be sent electrical measurement, and this has just increased the inherently safe influence to the attendant, careless slightly will having an accident.It is groundwork, isolated component that original industry spot all adopts contactor with electromagnetic disc control guarantor magnetic part, produces very big electric arcing when contactor switches, and is easy to burn out the contact, and failure rate is very high.
On-the-spot original electromagnetic disc control flow cabinet is put the magnetic part mainly by contactor with put magneto-resistor and form, contactor in use, be very easy to damage, when scene original electromagnetic disc control flow cabinet is put magnetic and is partly broken down, can cause weight that on-the-spot electromagnetic disc is inhaled with putting magnetic it to be put down, and need to wait for a very long time, for being magnetic and the object of lighter weight, even can't put down, so just make production to proceed, must etc. after on-the-spot original electromagnetic disc control flow cabinet puts magnetic and partly fixes, just can work on, thereby cause the delay of produced on-site and reduce and economic loss by incuring loss through delay the output of being brought.Simultaneously, when civil power falls to occur in when putting magnetic, general drivers' cab personnel can not judge immediately, need stir the action bars of button or overhead traveling crane and judge having or not of civil power, drivers' cab personnel that have even need meet with the ground staff and be confirmed to be civil power and fall still that on-the-spot original electromagnetic disc control flow cabinet has fault, 1,2 minute at least this time, more than 10 minute at most, thus cause the output that delay brought of produced on-site to reduce and economic loss.
Summary of the invention
The present invention is directed to the proposition of above problem, realize after the civil power power down that electromagnetic disc is inhaled magnetic protects magnetic or put magnetic and protect magnetic treatment and develop H bridge that a kind of utilization is made of IGBT.The technological means that the present invention adopts is as follows:
Put magnetic after a kind of electromagnet power down and protect the method for magnetic, it is characterized in that comprising the steps:
A, at first protect magnetic system the voltage between the electromagnetic disc two ends is monitored in real time;
B, when the electromagnetic disc both end voltage is lower than set point suddenly, immediately storage battery is come into operation, make it load reverse voltage relative when inhaling the magnetic operate as normal with electromagnetic disc to the electromagnetic disc two ends;
C, protect the magnetic time and stop to electromagnetic disc two ends on-load voltage after arriving set point when putting magnetic.
Guarantor's magnetic device after a kind of electromagnet power down comprises:
Operation, display unit are used for to the operating state of protecting magnetic device input operation information and the whole device of demonstration;
It is characterized in that also comprising:
Detecting unit, the voltage that is used to detect the electromagnetic disc two ends detects;
Processing unit, the operation information of importing according to operation, display unit sends forward conduction trigger impulse or reverse-conducting trigger impulse to H bridge IGBT unit;
H bridge IGBT unit, the voltage that is used for controlling the storage battery of storage circuit is the two ends that are carried in electromagnetic disc forward or backwards;
When guarantor's magnetic device after the civil power power down is inhaled magnetic guarantor magnetic, described processing unit sends the forward conduction pulse to H bridge IGBT unit, the both end voltage that makes the storage battery in the described storage circuit is loaded into the two ends of electromagnetic disc through H bridge IGBT unit forward, makes its weight continue to be adsorbed on the electromagnetic disc; When putting magnetic and protecting magnetic, described processing unit sends the reverse-conducting pulse to H bridge IGBT unit, makes the both end voltage of the storage battery in the described storage circuit oppositely be loaded into the two ends of electromagnetic disc through H bridge IGBT unit, makes its weight break away from electromagnetic disc.
Described storage circuit is made up of filter inductance, electrochemical capacitor and storage battery.
Be connected with the H bridge switch between described H bridge IGBT unit is with electromagnetic disc, the curtage when being used to block the electromagnetic disc operate as normal is to the impact of protecting magnetic device and the generation that prevents leakage current;
Described processing unit also is used to control the conducting of H bridge switch or close.
Input in described electromagnetic disc also is connected with continued flow resistance, is used for sponging before protecting the magnetic input peak voltage at electromagnetic disc two ends; On the loop that described electromagnetic disc forms with continued flow resistance, be provided with the continued flow resistance switch;
Described processing unit also is used to control the conducting of continued flow resistance switch and close.
Described detecting unit also is used to detect the detection of inhaling magnetic signal, putting magnetic signal, battery tension and battery current.
Guarantor's magnetic system after this electromagnet power down cooperates with the electromagnetic disc control device, can constitute the electromagnetic disc control cubicle jointly, be used for electromagnetic disc suction, put magnetic control system and protect magnetic, and charge with storage battery to protecting magnetic.In addition, charging and guarantor's magnetic switching device shifter also can match with other old-fashioned screen cabinets of industry spot, carry out the upgrading of legacy system.It is core that this device adopts high-end microprocessors, and digital quantity is controlled, and the liquid crystal Chinese character shows, protects at original suction magnetic on the basis of magnetic, invents and increase to put magnetic guarantor magnetic; Components and parts intensification, miniaturization, densification replace a big screen cabinet fully with a little device.Replace rapid wear, contactor that failure rate is high with IGBT and controllable silicon, realize contactless control; Make it have compact conformation, attractive in appearance, protect magnetic system miniaturization, integrated, densification, and raising reliability, the volume of the magnetic switching device shifter that charges and protect has only original industry spot to protect 1/8th of magnetic partial volume with electromagnetic disc control, has saved the on-the-spot space of using greatly, and crust of the device adopts and contains ferrous material, do like this and both increased crust of the device intensity, make that device is firm more, shock resistance, increased the antijamming capability of device again, equally also reduced electromagnetic interference to external world.Charging and to protect the magnetic switching device shifter be core with the high-end microprocessors, digital quantity control, deal with data ability and speed strengthen greatly, and antijamming capability is strong, has reduced the wiring board volume, has solved the temperature that analog quantity very easily occurs and has floated problem.Charging and guarantor's magnetic switching device shifter adopt the liquid crystal Chinese character to show, interface simple to operation greatly facilitates the attendant, by simple adjusting Several Parameters just can finishing device field adjustable, when system breaks down,, just can judge abort situation immediately by content presentation on the interface, greatly facilitate the attendant, saved preventive maintenance time and cost greatly, simultaneously because preventive maintenance time is short, the huge loss of having avoided on-the-spot barrier for some reason to stop production and caused greatly.
Description of drawings
Fig. 1 is for protecting the structural representation of the device of magnetic after the electromagnet power down of the present invention;
Fig. 2 is for protecting the structured flowchart of the electric-control system of magnetic after the electromagnet power down of the present invention.
Embodiment
As Fig. 1, Figure 2 shows that the structural representation of the guarantor's magnetic device after the electromagnet power down and the structured flowchart of electric-control system, operation, display unit 204, be used for to the operating state of protecting magnetic device input operation information and the whole device of demonstration, wherein display unit adopts the liquid crystal Chinese character to show, the attendant can conveniently learn the operating state of device, make maintenance become very simple and quick, by reading the displaying contents of liquid crystal on charging and the guarantor's magnetic switching device shifter display floater, can know charging fast and protect the problem place of magnetic switching device shifter and whole electrical system, make the on-site maintenance personnel find the fault point rapidly, thereby shortened preventive maintenance time greatly, reduced maintenance difficulties, reduced maintenance cost, made on-the-spot the barrier for some reason and time of stopping production shortens greatly; Operating unit then is the various functional units that are positioned at drivers' cab.Charging module 3 phase bridges 103 have pressure regulation+rectification function, regulate the function that the charging module 3 phase bridges 103 interior silicon controlled angles of flow realize regulating charging voltage and charging current by processing unit 201.Storage circuit in 102 simultaneous interpretation blanket insurances of storage circuit magnetic circuit is the same, is made up of filter inductance, electrochemical capacitor and storage battery, and filter inductance is used for level and smooth charging current, and electrochemical capacitor is used for absorbing peak voltage.Electromagnetic disc 106 is used for adsorbing magnetic or ironwork.
Detecting unit 202, be used to detect electromagnetic disc 106 two ends voltage, inhale magnetic signal, put magnetic signal, the detection of battery tension and battery current, and the information after will detecting sends to processing unit 201, show by the display unit in operation, the display unit 204 after treatment, make operating personnel understand the operating state of package unit at any time; Processing unit 201 is a kind of microprocessor with computing ability, operation information according to operation, display unit 204 inputs sends forward conduction trigger impulse or reverse-conducting trigger impulse to H bridge IGBT unit 101, the conducting direction of control H bridge switch 104, the conducting of control continued flow resistance switch 107 with close; H bridge IGBT unit 101 is by the H bridge circuit that 4 IGBT form, and the voltage that is used for controlling the storage battery of storage circuit 102 is the two ends that are carried in electromagnetic disc 106 forward or backwards; In addition, H bridge IGBT unit 101 is with being connected with H bridge switch 104 (being made up of 2 bidirectional triode thyristors) between the electromagnetic disc 106, and the curtage when being used to block electromagnetic disc 106 operate as normal is to the impact of protecting magnetic device and the generation that prevents leakage current; The input of electromagnetic disc 106 also is connected with continued flow resistance 105, before protecting the magnetic input coming into operation the time of a few tens of milliseconds is arranged usually, and its effect is the peak voltage that is used for sponging electromagnetic disc 106 two ends before protecting the magnetic input, in order to the protection storage battery; Be provided with continued flow resistance switch 107 on the loop that described electromagnetic disc 106 forms with continued flow resistance 105, resistance switch 107 is realized by controllable silicon, has so just been realized the contactless control of package unit.
Popular, ripe now charging technique is adopted in 102 chargings to storage circuit: constant current constant voltage+floating charge pattern.In the starting stage of charging, by regulating charging voltage, holding current is constant, i.e. constant current; When approaching being full of, along with the reduction gradually of charging current, by regulating, sustaining voltage is constant, i.e. constant voltage; After being full of, adopt the mode of floating charge to replenish the consumption that causes because of the storage battery self discharge.
When magnetic work is inhaled, put to the electromagnetic disc control device, electromagnet power down guarantor magnetic system monitors the voltage between the electromagnetic disc two ends constantly, and when when inhaling magnetic or putting magnetic, the electromagnetic disc both end voltage is lower than set point suddenly, then charge and protect the magnetic switching device shifter and immediately storage battery is come into operation, protect magnetic.
When guarantor's magnetic device after the civil power power down is inhaled magnetic guarantor magnetic, described processing unit 201 sends the forward conduction pulse to H bridge IGBT unit 101, IGBT1 and the IGBT4 conducting of control H bridge IGBT, and open H bridge switch 104, the battery tension forward is added to the two ends of electromagnetic disc 106, make weight continue to be adsorbed on and realize on the electromagnetic disc 106 that inhaling magnetic protects magnetic, thereby electromagnetic disc 106 can or not fallen personnel and the equipment loss that causes because of civil power falls to lose magnetism to guarantee weight that electromagnetic disc is inhaled.When putting magnetic guarantor magnetic, described processing unit 201 sends the reverse-conducting pulse to H bridge IGBT unit 101, IGBT2 and the IGBT3 conducting of control H bridge IGBT, and open the H bridge switch, battery tension oppositely is added to the two ends of electromagnetic disc 106, make weight break away from electromagnetic disc 106 fast and realize putting magnetic and protect magnetic, thereby reduced that on-the-spot original electromagnetic disc 106 control flow cabinets put that magnetic partial fault or civil power fall and the economic loss brought; Stop to electromagnetic disc two ends on-load voltage after magnetic is protected magnetic time arrival set point when putting, put magnetic and protect the magnetic knot bundle.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (5)
1. the guarantor's magnetic device after the electromagnet power down comprises:
Operation, display unit (204) are used for to the operating state of protecting magnetic device input operation information and the whole device of demonstration;
Charging module 3 phase bridges (103) are used for the three-phase electricity of outside input is carried out carrying the direct current of constant current or constant voltage to storage circuit after pressure regulation, the rectification processing; And storage circuit (102) and electromagnetic disc (106);
It is characterized in that also comprising:
Detecting unit (202) is used for the voltage at electromagnetic disc (106) two ends is detected;
Processing unit (201), the operation information of importing according to operation, display unit (204) sends forward conduction trigger impulse or reverse-conducting trigger impulse to H bridge IGBT unit (101);
H bridge IGBT unit (101), the voltage that is used for controlling the storage battery of storage circuit (102) is the two ends that are carried in electromagnetic disc (106) forward or backwards;
When guarantor's magnetic device after the civil power power down is inhaled magnetic guarantor magnetic, described processing unit (201) sends the forward conduction pulse to H bridge IGBT unit (101), the both end voltage that makes the storage battery in the described storage circuit (102) is loaded into the two ends of electromagnetic disc (106) through H bridge IGBT unit (101) forward, makes its weight continue to be adsorbed on the electromagnetic disc (106); When putting magnetic guarantor magnetic, described processing unit (201) sends the reverse-conducting pulse to H bridge IGBT unit (101), make the both end voltage of the storage battery in the described storage circuit (102) oppositely be loaded into the two ends of electromagnetic disc (106) through H bridge IGBT unit (101), make its weight break away from electromagnetic disc (106).
2. the guarantor's magnetic device after a kind of electromagnet power down according to claim 1 is characterized in that described storage circuit (102) is made up of filter inductance, electrochemical capacitor and storage battery.
3. the guarantor's magnetic device after a kind of electromagnet power down according to claim 1 is characterized in that
Be connected with H bridge switch (104) between the same electromagnetic disc in described H bridge IGBT unit (101) (106), the curtage when being used to block electromagnetic disc (106) operate as normal is to the impact of protecting magnetic device and the generation that prevents leakage current;
Described processing unit (201) also is used to control the conducting of H bridge switch (104) or close.
4. the guarantor's magnetic device after a kind of electromagnet power down according to claim 1 is characterized in that
The input of described electromagnetic disc (106) also is connected with continued flow resistance (105), is used for sponging before protecting the magnetic input peak voltage at electromagnetic disc (106) two ends; On the loop that the same continued flow resistance of described electromagnetic disc (106) (105) forms, be provided with continued flow resistance switch (107);
Described processing unit (201) also is used to control the conducting of continued flow resistance switch (107) and close.
5. the guarantor's magnetic device after a kind of electromagnet power down according to claim 1 is characterized in that described detecting unit (202) also is used to inhale magnetic signal, puts magnetic signal, the detection of battery tension and battery current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102282187A CN101499355B (en) | 2008-10-20 | 2008-10-20 | Magnet protection system for power fail of electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102282187A CN101499355B (en) | 2008-10-20 | 2008-10-20 | Magnet protection system for power fail of electromagnet |
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| Publication Number | Publication Date |
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| CN101499355A CN101499355A (en) | 2009-08-05 |
| CN101499355B true CN101499355B (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102282187A Active CN101499355B (en) | 2008-10-20 | 2008-10-20 | Magnet protection system for power fail of electromagnet |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117463506B (en) * | 2023-12-26 | 2024-03-22 | 浙江佳环电子有限公司 | Self-adaptive constant-current constant-voltage control high-voltage power supply |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387305A (en) * | 1981-06-11 | 1983-06-07 | Control Specialties, Inc. | Emergency power system for electromagnets |
| US4771358A (en) * | 1987-11-09 | 1988-09-13 | Walker Magnetics Group, Inc. | Magnetic chuck controller |
| CN1132400A (en) * | 1995-03-28 | 1996-10-02 | 西安鸣士机电开发有限公司 | Magnetizing and demagnetizing controller of sucker of grinder |
| CN2455685Y (en) * | 2000-12-15 | 2001-10-24 | 朱显德 | Safety power saving controller for electromagnetic crane |
| CN101106008A (en) * | 2007-06-15 | 2008-01-16 | 西安鸣士机电开发有限公司 | Modified grinder cupula magnetizing and demagnetization controller |
| CN101106009A (en) * | 2007-06-05 | 2008-01-16 | 薛建仁 | Super capacitance degaussing machine for ship |
-
2008
- 2008-10-20 CN CN2008102282187A patent/CN101499355B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387305A (en) * | 1981-06-11 | 1983-06-07 | Control Specialties, Inc. | Emergency power system for electromagnets |
| US4771358A (en) * | 1987-11-09 | 1988-09-13 | Walker Magnetics Group, Inc. | Magnetic chuck controller |
| CN1132400A (en) * | 1995-03-28 | 1996-10-02 | 西安鸣士机电开发有限公司 | Magnetizing and demagnetizing controller of sucker of grinder |
| CN2455685Y (en) * | 2000-12-15 | 2001-10-24 | 朱显德 | Safety power saving controller for electromagnetic crane |
| CN101106009A (en) * | 2007-06-05 | 2008-01-16 | 薛建仁 | Super capacitance degaussing machine for ship |
| CN101106008A (en) * | 2007-06-15 | 2008-01-16 | 西安鸣士机电开发有限公司 | Modified grinder cupula magnetizing and demagnetization controller |
Non-Patent Citations (1)
| Title |
|---|
| JP昭63-202902A 1988.08.22 |
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| CN101499355A (en) | 2009-08-05 |
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