CN103715912A - Intelligent temperature control device of mold pressing platform variable-frequency power source - Google Patents
Intelligent temperature control device of mold pressing platform variable-frequency power source Download PDFInfo
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- CN103715912A CN103715912A CN201310592900.5A CN201310592900A CN103715912A CN 103715912 A CN103715912 A CN 103715912A CN 201310592900 A CN201310592900 A CN 201310592900A CN 103715912 A CN103715912 A CN 103715912A
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Abstract
An intelligent temperature control device of a mold pressing platform variable-frequency power source belongs to the technical field of manufacturing of motors. The temperature control device comprises a power supply device and a temperature measurement circuit. The power supply device comprises a three-phase five-line power source input end, a three-phase circuit breaker, a rectifying device, an inverting device, an isolated transformer, and a protection drive circuit, wherein the rectifying device is an AC/DC converter; the inverting device is a DC/AC converter; the isolated transformer has a voltage-reducing current-rising function; the output terminal of the isolated transformer is connected with a measurement display circuit; the protection drive circuit is connected with the control terminal of the rectifying device and the drive terminal of the inverting device; and the protection drive circuit, the measurement display circuit, and the temperature measurement circuit are connected with comprehensive display control equipment. The intelligent temperature control device of the mold pressing platform variable-frequency power source not only can solve the problem in the prior art that single-phase power sources are unbalanced, but also can increase the power source efficiency and the power factor while simultaneously realizing the automatic voltage regulation and solving the problem that the control precision is low under hand-operated voltage regulation conditions.
Description
Technical field
Mold pressing platform variable frequency power supply intelligent temperature control device belongs to a motor manufacturing technology field, is specifically related to a kind of for controlling the attemperating unit of motor lines rod heat-shaping.
Background technology
In the data that can find and the product that can buy, mold pressing platform supply unit all adopts saturable reactor pressure regulation, and this voltage regulating mode exists power-efficient and the low shortcoming of power factor.In addition, owing to using single phase alternating current power supply power supply, cause power plant seriously uneven, often occur because wherein a phase current is excessive, cause the problem of electric power system tripping operation, impact is normally produced.In addition, all Regulation Control are by rule of thumb manual operation of operating personnel, and due to the difference existing in subjective judgement, so control precision is low.
In sum, existing mold pressing platform supply unit has following three shortcomings:
The first, power-efficient and power factor are low;
The second, unbalanced power supply;
Three, control precision is low.
Summary of the invention
In order to address the above problem, the present invention has designed a kind of mold pressing platform variable frequency power supply intelligent temperature control device, this attemperating unit not only can solve the unbalanced problem of prior art single phase poaer supply, and can improve power-efficient and power factor, can realize automatic Regulation, the low problem of control precision under manual voltage regulation condition in solution prior art simultaneously.
The object of the present invention is achieved like this:
A mold pressing platform variable frequency power supply intelligent temperature control device, comprises for giving electric supply installation that line rod heats and for monitoring the temperature measuring circuit of line rod temperature; Described electric supply installation comprises three-phase five-wire mode power input, three-phase breaker, rectifying device, inverter, isolating transformer and protection drive circuit;
Described three-phase five-wire mode power input comprises AC power A, AC power B, AC power C, zero line N and ground wire PE;
The input of described three-phase breaker connects AC power A, AC power B and the AC power C of three-phase five-wire mode power input;
Described rectifying device is AC/DC converter, and input is connected with the output of three-phase breaker;
Described inverter is DC/AC converter, and input is connected with the output of rectifying device;
Described isolating transformer has step-down up-flow function, and the output of isolating transformer is single phase poaer supply output, is connected with measurement display circuit;
Described protection drive circuit connects the control end of rectifying device, connects the drive end of inverter;
Described protection drive circuit, measurement display circuit are connected synthetic display control appliance with temperature measuring circuit.
Above-mentioned a kind of mold pressing platform variable frequency power supply intelligent temperature control device, described three-phase breaker adopts positive safe NM1-630.
Above-mentioned a kind of mold pressing platform variable frequency power supply intelligent temperature control device, described inverter is the H inverter bridge that 4 insulated gate bipolar transistor IGBTs form, all insulated gate bipolar transistor IGBTs all adopt the FZ900R12KE4 of Infineon.
Above-mentioned a kind of mold pressing platform variable frequency power supply intelligent temperature control device, described isolating transformer model is HYDG.
Above-mentioned a kind of mold pressing platform variable frequency power supply intelligent temperature control device, described protection drive circuit adopts A316J inversion module drive circuit.
Above-mentioned a kind of mold pressing platform variable frequency power supply intelligent temperature control device, the PT100 that the temperature sensor in described temperature measuring circuit adopts Beijing match hundred million to insult.
Above-mentioned a kind of mold pressing platform variable frequency power supply intelligent temperature control device, described synthetic display control appliance is industrial panel computer.
Described synthetic display control appliance selects to grind magnificent TPC-1570H panel computer.
Beneficial effect:
1, power pack of the present invention comprises the design of three-phase five-wire mode power input, three-phase breaker, rectifying device, inverter, isolating transformer and single phase poaer supply output, realize the output of three-phase input single-phase, solved the unbalanced problem of prior art single phase poaer supply;
2, power pack of the present invention is designed with rectifying device and inverter, realizes variable frequency power supply pressure regulation, has improved power-efficient and power factor;
3, the present invention is designed with the temperature measuring circuit for monitoring workpiece temperature; for controlling protection rectifying device and for driving the protection drive circuit of inverter; can be according to the temperature of workpiece; by protection drive circuit, automatically adjust the parameter of rectifying device and inverter; realize automatic Regulation, the low problem of control precision under manual voltage regulation condition in solution prior art.
Accompanying drawing explanation
Fig. 1 is mold pressing platform variable frequency power supply intelligent temperature control device Circuits System schematic diagram of the present invention.
Fig. 2 is the circuit connection diagram of three-phase breaker and rectifying device.
Fig. 3 is the circuit diagram of inverter.
Fig. 4 is the connection diagram in circuit of isolating transformer.
Fig. 5 is the circuit connection diagram of protection drive circuit.
In figure: 1 three-phase five-wire mode power input, 2 three-phase breakers, 3 rectifying devices, 4 inverters, 5 isolating transformers, 6 protection drive circuits, 7 are measured display circuit, 8 temperature measuring circuits, 9 synthetic display control appliances, 10 line rods.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
The mold pressing platform variable frequency power supply intelligent temperature control device of the present embodiment, Circuits System schematic diagram as shown in Figure 1.This mold pressing platform variable frequency power supply intelligent temperature control device comprises for giving electric supply installation that line rod 10 heats and for monitoring the temperature measuring circuit 8 of line rod 10 temperature; Described electric supply installation comprises three-phase five-wire mode power input 1, three-phase breaker 2, rectifying device 3, inverter 4, isolating transformer 5 and protection drive circuit 6;
Described three-phase five-wire mode power input 1 comprises AC power A, AC power B, AC power C, zero line N and ground wire PE;
The input of described three-phase breaker 2 connects AC power A, AC power B and the AC power C of three-phase five-wire mode power input 1;
Described rectifying device 3 is AC/DC converter, and input is connected with the output of three-phase breaker 2;
Described inverter 4 is DC/AC converter, and input is connected with the output of rectifying device 3;
Described isolating transformer 5 has step-down up-flow function, and the output of isolating transformer 5 is single phase poaer supply output, is connected with and measures display circuit 8;
Described protection drive circuit 6 connects the control end of rectifying device 3, connects the drive end of inverter 4;
Described protection drive circuit 6, measurement display circuit 7 are connected synthetic display control appliance 9 with temperature measuring circuit 8.
Above-mentioned mold pressing platform variable frequency power supply intelligent temperature control device, described three-phase breaker 2 adopts positive safe NM1-630.
Above-mentioned mold pressing platform variable frequency power supply intelligent temperature control device, the rectification that the described large current hollow air cock of rectifying device 3 use, rectification module are realized input ac power, described large current hollow air cock adopts the positive safe NM1 in Zhejiang.
The circuit connection diagram of three-phase breaker 2 and rectifying device 3 as shown in Figure 2.
Above-mentioned mold pressing platform variable frequency power supply intelligent temperature control device, described inverter 4 is the H inverter bridge that 4 insulated gate bipolar transistor IGBTs form, all insulated gate bipolar transistor IGBTs all adopt the FZ900R12KE4 of Infineon.The circuit diagram of inverter 4 as shown in Figure 3.
Above-mentioned mold pressing platform variable frequency power supply intelligent temperature control device, described isolating transformer 5 models are HYDG.The connection diagram in circuit of isolating transformer 5 as shown in Figure 4.
Above-mentioned mold pressing platform variable frequency power supply intelligent temperature control device, described protection drive circuit 6 adopts A316J inversion module drive circuit.The circuit connection diagram of protection drive circuit 6 as shown in Figure 5.
The VIN+ on the A316J left side in Fig. 5; FAULT is connected with synthetic display control appliance respectively with RESET, R7, R8; R9; D5, D6 and C12 play input protection effect, and main interlocked of Q3 used; when two-way pwm signal is all high level; Q3 conducting, drags down incoming level, and making output is also low level.Interlock and Interlock2 are interlocking signal.R1 and C2 have played the amplification of fault-signal and filtering, after having interference signal, can allow synthetic display control appliance correctly receive information.At output, R5 and C7 are related to speed and the switching loss that IGBT opens, and C3 mainly plays charging time-lag action, if there is no C3, can send mistakenly short trouble signal, make to export direct shutoff.When chip is normally worked, if collector voltage moment rising recovers normal afterwards at once, if there is no C3, also can send wrong fault-signal, IGBT mistake is turn-offed.At collector electrode testing circuit, with two diode D1, D2, contact, can improve overall oppositely withstand voltage, thereby can improve drive voltage level, the effect of R4 and C5 is to retain A316J to occur the soft turn-off characteristic having after over-current signal, and the electric discharge that its principle is C5 by internal transistor realizes soft shutoff.A316J chip output voltage VO UT recommends output through two quick triode Q1, Q2, and drive current is increased, can fast driving IGBT.
Above-mentioned mold pressing platform variable frequency power supply intelligent temperature control device, the PT100 that the temperature sensor in described temperature measuring circuit 8 adopts Beijing match hundred million to insult.
Above-mentioned mold pressing platform variable frequency power supply intelligent temperature control device, described synthetic display control appliance 9 is industrial panel computer, in the present embodiment, adopts and grinds magnificent TPC-1570H panel computer.
The concrete function of mold pressing platform variable frequency power supply intelligent temperature control device of the present invention is: the main circuit employing of variable frequency power supply " hand over---directly---hand over " voltage-type frequency changer circuit, mainly by rectification, filtering, inversion, formed.Rectifying part adopts three-phase bridge commutating module, realizes the conversion of AC/DC; Filtering link adopts filter capacitor to carry out stable DC voltage; The H inverter bridge that Converting Unit adopts 4 single tube IGBT to form, realizes the conversion of DC/AC.The control circuit of variable frequency power supply adopts advanced SPWM inversion transformation technique, two Closed loop Control, adopts the technology such as digital frequency division, instantaneous values feedback, sinusoidal pulse width modulation, is used for regulating frequency and the amplitude of power-supply system output signal, realizes variable voltage variable frequency.Reliable for guaranteeing system safety, be provided with over-and under-voltage and detect protective circuit, optical couple isolation drive circuit, accessory power supply change-over circuit etc.With isolating transformer, export to increase complete machine stability; there is the features such as workload-adaptability is strong, output waveform quality better; and special in different environment, there is overvoltage, overcurrent, overload, mistake high temperature, short circuit automatic separating protection alarm device, to guarantee power supply reliability service.And adopted intelligent control system, can automatically realize intensification, insulation, stopping function according to design temperature.Make whole operation realize whole automations.
Claims (8)
1. a mold pressing platform variable frequency power supply intelligent temperature control device, is characterized in that, comprises for giving electric supply installation that line rod (10) heats and for monitoring the temperature measuring circuit (8) of line rod (10) temperature; Described electric supply installation comprises three-phase five-wire mode power input (1), three-phase breaker (2), rectifying device (3), inverter (4), isolating transformer (5) and protection drive circuit (6);
Described three-phase five-wire mode power input (1) comprises AC power A, AC power B, AC power C, zero line N and ground wire PE;
The input of described three-phase breaker (2) connects AC power A, AC power B and the AC power C of three-phase five-wire mode power input (1);
Described rectifying device (3) is AC/DC converter, and input is connected with the output of three-phase breaker (2);
Described inverter (4) is DC/AC converter, and input is connected with the output of rectifying device (3);
Described isolating transformer (5) has step-down up-flow function, and the output of isolating transformer (5) is single phase poaer supply output, is connected with and measures display circuit (8);
Described protection drive circuit (6) connects the control end of rectifying device (3), connects the drive end of inverter (4);
Described protection drive circuit (6), measurement display circuit (7) are connected synthetic display control appliance (9) with temperature measuring circuit (8).
2. a kind of mold pressing platform variable frequency power supply intelligent temperature control device according to claim 1, is characterized in that, described three-phase breaker (2) adopts positive safe NM1-630.
3. a kind of mold pressing platform variable frequency power supply intelligent temperature control device according to claim 1, it is characterized in that, described inverter (4) is the H inverter bridge that 4 insulated gate bipolar transistor IGBTs form, and all insulated gate bipolar transistor IGBTs all adopt the FZ900R12KE4 of Infineon.
4. a kind of mold pressing platform variable frequency power supply intelligent temperature control device according to claim 1, is characterized in that, described isolating transformer (5) model is HYDG.
5. a kind of mold pressing platform variable frequency power supply intelligent temperature control device according to claim 1, is characterized in that, described protection drive circuit (6) adopts A316J inversion module drive circuit.
6. a kind of mold pressing platform variable frequency power supply intelligent temperature control device according to claim 1, is characterized in that, the PT100 that the temperature sensor in described temperature measuring circuit (8) adopts Beijing match hundred million to insult.
7. a kind of mold pressing platform variable frequency power supply intelligent temperature control device according to claim 1, is characterized in that, described synthetic display control appliance (9) is industrial panel computer.
8. a kind of mold pressing platform variable frequency power supply intelligent temperature control device according to claim 7, is characterized in that, described synthetic display control appliance (9) selects to grind magnificent TPC-1570H panel computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310592900.5A CN103715912A (en) | 2013-11-22 | 2013-11-22 | Intelligent temperature control device of mold pressing platform variable-frequency power source |
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| CN201310592900.5A CN103715912A (en) | 2013-11-22 | 2013-11-22 | Intelligent temperature control device of mold pressing platform variable-frequency power source |
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| CN103715912A true CN103715912A (en) | 2014-04-09 |
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| CN101499729A (en) * | 2008-11-03 | 2009-08-05 | 郑州金海威科技实业有限公司 | Three phase frequency changing power device for diamond product hot pressing sintering |
| US7787270B2 (en) * | 2007-06-06 | 2010-08-31 | General Electric Company | DC-DC and DC-AC power conversion system |
| CN202168231U (en) * | 2011-06-24 | 2012-03-14 | 平顶山市鸿发物资贸易有限公司 | Electromagnetic induction heater used for plastic processing device |
| CN202713670U (en) * | 2012-07-12 | 2013-01-30 | 成都科盛石油科技有限公司 | Petroleum induction heating system based on IGBT |
| CN203537240U (en) * | 2013-11-22 | 2014-04-09 | 哈尔滨宏宇整流开关厂 | Intelligent temperature control device of variable-frequency power supply of moulding pressing bench |
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2013
- 2013-11-22 CN CN201310592900.5A patent/CN103715912A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2828797Y (en) * | 2005-05-31 | 2006-10-18 | 宝山钢铁股份有限公司 | Induction heating type metal material cold-het fatigue testing device |
| US7787270B2 (en) * | 2007-06-06 | 2010-08-31 | General Electric Company | DC-DC and DC-AC power conversion system |
| CN101499729A (en) * | 2008-11-03 | 2009-08-05 | 郑州金海威科技实业有限公司 | Three phase frequency changing power device for diamond product hot pressing sintering |
| CN202168231U (en) * | 2011-06-24 | 2012-03-14 | 平顶山市鸿发物资贸易有限公司 | Electromagnetic induction heater used for plastic processing device |
| CN202713670U (en) * | 2012-07-12 | 2013-01-30 | 成都科盛石油科技有限公司 | Petroleum induction heating system based on IGBT |
| CN203537240U (en) * | 2013-11-22 | 2014-04-09 | 哈尔滨宏宇整流开关厂 | Intelligent temperature control device of variable-frequency power supply of moulding pressing bench |
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Application publication date: 20140409 |