CN201541145U - UPS (Uninterrupted Power Supply) capable of working under multiple modes - Google Patents
UPS (Uninterrupted Power Supply) capable of working under multiple modes Download PDFInfo
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- CN201541145U CN201541145U CN2009201744117U CN200920174411U CN201541145U CN 201541145 U CN201541145 U CN 201541145U CN 2009201744117 U CN2009201744117 U CN 2009201744117U CN 200920174411 U CN200920174411 U CN 200920174411U CN 201541145 U CN201541145 U CN 201541145U
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Abstract
The utility model provides a UPS (Uninterrupted Power Supply) capable of working under multiple modes, comprising a commercial electricity input, an accumulator, a rectifier, an inverter, a bypass static switch, an inverter static switch, an MCU singlechip control circuit, an external input circuit, and an external output circuit, wherein one path of the commercial electricity input circuit is sequentially connected with the rectifier, the inverter, the inverter static switch and an alternating current output; the other path of the commercial electricity input circuit is sequentially connected with the bypass static switch and the alternating current output; the accumulator is connected with a connecting point of the output terminal of the rectifier and the input terminal of the inverter; the MCU singlechip control circuit outputs a bypass static switch control signal to the bypass static switch, outputs the inverter static switch control signal to the inverter static switch, outputs the inverter control signal to the inverter, outputs the working state data signal to the external output circuit, inputs the commercial electricity input sampling circuit, and inputs the signal input by the external input circuit. The UPS overcomes the defect that the existing UPS is provided with a single dual-changing online working mode and provides a power supply with various working modes.
Description
Technical field:
The utility model relates to a kind of power supply, especially relates to a kind of multi-mode working UPS.
Background technology:
The high power UPS power supply has only single two conversion pattern that works online in the routine, overall efficiency generally has only about 85%, usually adapting to load is computer and some precision equipments, must amplify 7-10 times of surplus ability operate as normal to the inductive load within the motor, there are not functions such as variable frequency starting, indifferent to adaptive load, self power consumption height is not energy-conservation.
The utility model content:
The purpose of this utility model is exactly to overcome existing ups power to have only the work online deficiency of pattern of single pair of conversion, proposes a kind of UPS power supply with multiple mode of operation.
For achieving the above object, a kind of multi-mode working UPS of the utility model, comprise the civil power input, storage battery, rectifier, inverter, bypass static switch, the inversion static switch, the MCU single chip machine controlling circuit, outside input circuit, outside output circuit, civil power imports one the tunnel successively through rectifier, inverter, the inversion static switch is to exchanging output, export to exchanging through bypass static switch on another road, storage battery is connected the tie point of rectifier output end and inverter input, MCU single chip machine controlling circuit output bypass static switch controls signal to bypass static switch, output inversion static switch controls signal to the inversion static switch, the output inverter control signal is to inverter, output services status data signal is imported civil power input sample signal to outside output circuit, import the signal of outside input circuit input.
Above-mentioned MCU single chip machine controlling circuit can also be exported rectification and control signal to rectifier, input storage battery sampled signal, input inversion sampled signal, input AC output sampled signal.
In one embodiment, above-mentioned MCU single chip machine controlling circuit comprises main frame MCU single chip machine controlling circuit and shows the MCU single chip machine controlling circuit, main frame MCU single chip machine controlling circuit transmits data through serial line interface with showing the MCU single chip machine controlling circuit, the bypass static switch control signal of above-mentioned MCU single chip machine controlling circuit output, inversion static switch control signal, inverter control signal is the output of main frame MCU single chip machine controlling circuit, the civil power input sample signal of above-mentioned MCU single chip machine controlling circuit input is the input of main frame MCU single chip machine controlling circuit, the operating state data signal of above-mentioned MCU single chip machine controlling circuit output is for showing the output of MCU single chip machine controlling circuit, and the outside input circuit input signal of above-mentioned MCU single chip machine controlling circuit input is for showing the input of MCU single chip machine controlling circuit.Main frame MCU single chip machine controlling circuit can also be exported rectification and control signal to rectifier, input storage battery sampled signal, input inversion sampled signal, input AC output sampled signal.
The said external output circuit can be display circuit or warning circuit, the said external input circuit can be key circuit, MCU single chip machine controlling circuit output services status data signal to display circuit shows or warning circuit is reported to the police, the signalization of input key circuit input.
Said external output circuit and outside input circuit can be serial line interface, and the MCU single chip machine controlling circuit connects background monitoring through serial line interface.
The utility model has been owing to used the MCU single chip machine controlling circuit, and is provided with bypass static switch and inversion static switch, and the user can be according to oneself loading condition, and the signal of importing by outside input circuit is provided with mode of operation of the present utility model.As computer and precision equipment load, be set to online pair of conversion mode of operation (UPS); Normal load equipment is set to economic operation model (ECO); Motor load equipment is set to the slow contingency mode (EPS) that starts of frequency conversion.
Characteristics of the present utility model are that the adaptive load ability is strong, of many uses, energy-conservation, circuit performance stable, cost is low, mode of operation is provided with conversion convenience, simple to operate.
Description of drawings:
Fig. 1 is the circuit block diagram of the utility model embodiment;
Fig. 2 is the main circuit schematic diagram of the main frame MCU single chip machine controlling circuit control of Fig. 1;
Embodiment:
Below in conjunction with accompanying drawing in detail CONSTRUCTED SPECIFICATION of the present utility model is described in detail:
As shown in Figure 1, be the circuit block diagram of the utility model embodiment, comprise civil power input, storage battery, rectifier, inverter, bypass static switch, inversion static switch, MCU single chip machine controlling circuit, outside input circuit and outside output circuit.The MCU single chip machine controlling circuit comprises main frame MCU single chip machine controlling circuit and shows the MCU single chip machine controlling circuit, main frame MCU single chip machine controlling circuit transmits data through serial line interface with showing the MCU single chip machine controlling circuit, outside output circuit is display circuit and warning circuit, outside input circuit is a key circuit, outside output circuit and outside input circuit also can be the RS232 serial line interface, connect background monitoring.
Civil power is imported one the tunnel and is exported to exchanging through rectifier, inverter, inversion static switch successively, and to exchanging output, storage battery is connected the tie point of rectifier output end and inverter input through bypass static switch on another road.Main frame MCU single chip machine controlling circuit output bypass static switch controls signal to bypass static switch, and bypass static switch is turn-offed or opened in control; Output inversion static switch controls signal to the inversion static switch, and the inversion static switch is turn-offed or opens in control; The output inverter control signal is to inverter, and control inverter is closed or inversion work or the slow startup of frequency conversion inversion work; The output rectification controls signal to rectifier, control rectifier block or rectification work; Input civil power input sample signal judges that the civil power input is normal; Input storage battery sampled signal, the judgement storage battery is normally denied; Input inversion sampled signal, the judgement inverter is normally denied; Input AC output sampled signal is judged to exchange output normally not.Show that MCU single chip machine controlling circuit output services status data signal to display circuit shows and warning circuit is reported to the police, the signalization of input key circuit input.Show that the MCU single chip machine controlling circuit connects background monitoring through the RS232 serial line interface, send the operating state data signal, receive the parameter data signal that is provided with of background monitoring to background monitoring.
Main frame MCU single chip machine controlling circuit, by to civil power input, exchange the collection of output, storage battery etc., and by serial communication with show that the MCU single chip machine controlling circuit carries out communication, carry out work by the pattern of user's setting.
Show the MCU single chip machine controlling circuit, it is the window of extension set dialogue, the operational data of main frame MCU single chip machine controlling circuit is carried out calculation process, the LED light of controlling display circuit then shows the operating state of main frame, and the buzzer warning by warning circuit, simultaneously with all data and state LCD liquid crystal display displays by display circuit; The service data of main frame is passed through RS232 serial line interface and background monitoring communication; Key circuit is that the user inquires about displaying contents or the parameter setting.
Rectifier converts the alternating current of civil power to direct current, for charge in batteries and inverter working power.Adopt controllable silicon bridge-type rectifier, adjust output voltage by the control silicon controlled angle of flow.Charge the battery when battery low pressure, rectifier is operated in constant current mode, is operated in pressure constant state after battery is full of.
Inverter then is that the direct current with the direct current of rectifier output or storage battery converts alternating current output to.
Bypass static switch and inversion static switch are the electronic switches of bypass and the conversion of inversion duplicate supply.
Accessory power supply then is the working power of supply circuit.
Storage battery then is the reserve energy.Import for civil power in city's electrical anomaly epoch, the reserve power supply is provided.
As shown in Figure 2, be the main circuit schematic diagram of main frame MCU single chip machine controlling circuit control, wherein, SW1 is a cell switch, and SW2 is a rectifier switch, and SW3 is a by-pass switch, and SW4 is the output switch.
When civil power just often, at first by being connected to rectifier after rectifier switch SW2, filter capacitor C1, the filter inductance L1 filter, rectifier adopts controllable silicon bridge-type rectifier Q1, controllable silicon bridge-type rectifier Q1 is transformed into direct current with the civil power input rectifying, through fuse F1, bus capacitance C2 filtering charges a battery, and supplies with inverter simultaneously.It is constant in float charge voltage supply inverter after battery is full of.The rectification of main frame MCU single-chip microcomputer output controls signal to the controllable silicon grid of controllable silicon bridge-type rectifier Q1A, Q1B, Q1C, Q1D, by adjusting the angle of flow of controllable silicon Q1A, Q1B, Q1C, Q1D, adjusts commutating voltage.
Charge in batteries then is that the direct voltage after the rectification charges the battery by diode D1, charging current by HR1 suddenly the ear current sensor measure, when battery low pressure, enter constant current charging mode, then transfer constant voltage mode after battery is full of to.
Battery inversion work: storage battery is at first by cell switch SW1, battery soft start current-limiting resistance RS1 gives bus capacitance C2 charging, after capacitor C 2 is full of, the control signal of sending main frame MCU single-chip microcomputer triggers controllable silicon Q5 conducting, short circuit battery soft start current-limiting resistance RS1, battery current is supplied with inverter by controllable silicon Q5.
Inverter adopts IGBT inverter bridge Q6 (4 unit H bridge Q6A, Q6B, Q6C, Q6D).When main frame MCU Single-chip Controlling inverter is worked, output inverter control signal SPWM drives ripple, be divided into the grid of 4 tunnel drive signals by external circuit to IGBT inverter bridge Q6, by the copped wave of IGBT inverter bridge Q6 switch, contravariant transformer T1 coupling, and pass through the leakage inductance of transformer and export inversion filter capacitor C3, leach pure sinusoidal ac.
Bypass static switch Q4 adopts controllable silicon Q4A, the Q4B of reverse parallel connection, and inversion static switch Q5 adopts controllable silicon Q5A, the Q5B of reverse parallel connection, and bypass static switch Q4 and inversion static switch Q5 are dual-power transfer switchs, switches bypass and inversion two-way alternating current.When inversion is exported, main frame MCU single-chip microcomputer sends the triggering signal of inversion static switch Q 5, also promptly export the grid that inversion static switch control signal acts on reverse parallel connection controllable silicon Q5A, Q5B, trigger reverse parallel connection controllable silicon Q5A, Q5B conducting, inversion output, send the bypass locking signal simultaneously, close bypass static switch Q4, also be the grid that main frame MCU single-chip microcomputer output bypass static switch control signal acts on reverse parallel connection controllable silicon Q4A, Q4B, trigger reverse parallel connection controllable silicon Q4A, Q4B and end.When control bypass output, then control bypass static switch Q4 conducting, close inversion static switch Q5.
Output instrument transformer CT1 is the output current sampling, is used for power output is measured and protected.
The MCU chip of main frame MCU single chip machine controlling circuit and demonstration MCU single chip machine controlling circuit all adopts the MC9S08AW16 of FREESCAL company.This single-chip microcomputer has 10 A/D converters, the dual serial communication port, and 2 timers have seizure, comparison and PWM function.The SMD encapsulation of LQFP-G44/LQFP-G64, peripheral circuit is simple.
1. employing serial communication, main frame MCU single-chip microcomputer and the data communication of demonstration MCU chip microcontroller.
2. utilize A/D converter that input and output voltage, electric current, cell voltage, charging current, temperature are carried out sampled measurements.
3. utilize the PWM function of MCU single-chip microcomputer, produce SPWM sinusoidal pulse width modulation signal, control IGBT inverter bridge starts.Other mouth line is realized the various controls to circuit.
The remaining circuit schematic diagram of present embodiment as button, demonstration, warning circuit etc., is the knowledge that those skilled in the art understand thoroughly, and seldom describes herein.
The course of work of the present utility model is as follows:
The user shows by button setting and display and inquires about or be provided with mode of operation that the parameter data signal that is provided with that also can receive background monitoring is provided with mode of operation.
The user is set to online pair of pattern conversion (UPS): civil power is imported just often, carry out rectification by rectifier, be divided into two-way output after the rectification, one the tunnel delivers to inverter, convert stable alternating voltage to by inverter, another road charges a battery, and battery is full of the back rectifier and is in floating charge state, promptly has only charging voltage and does not have charging current.Main frame MCU Single-chip Controlling is turn-offed bypass static switch, opens the inversion static switch, and the alternating voltage that inverter converts to is exported through the inversion static switch.During the city electrical anomaly, battery tension is exported by the inversion static switch after inverter is reverse into stable alternating voltage.When inverter cuts out or during fault, main frame MCU Single-chip Controlling is opened bypass static switch.Just often directly by rectification, inversion output, zero millisecond switches this mode of operation at civil power, and output voltage voltage stabilizing dynamic response is good, and wave distortion is little.Be applicable to the power supply quality height, to requiring short especially load switching time.
The user is set to economic operation model (ECO): civil power is imported just often, carries out rectification by rectifier, is divided into two-way output after the rectification, one the tunnel delivers to inverter, convert stable alternating voltage to by inverter, another road charges a battery, and battery is full of the back rectifier and is in floating charge state.This moment, main frame MCU single-chip microcomputer can send the grid of inverter control signal SPWM driving ripple to the IGBT inverter bridge, the inverter operate as normal, main frame MCU single-chip microcomputer sends bypass static switch and opens signal simultaneously, inversion static switch cut-off signals, the output load is by bypass static switch power supply output, and inverter is in inversion stand-by operation state and bringing onto load not.During the city electrical anomaly, under the control of main frame MCU single-chip microcomputer, turn-off bypass static switch fast, open the inversion static switch, switch to inverter output.Just often directly by bypass static switch output, without rectification and inversion Two Stages, the efficient of complete machine is up to 97%, than the electric weight of the energy-conservation 5%-10% of online pair of pattern conversion (UPS) at civil power for this mode of operation.
The user is set to the slow contingency mode (EPS) that starts of frequency conversion: civil power is imported just often, carries out rectification by rectifier, is divided into two-way output after the rectification, and one the tunnel delivers to inverter, and another road charges a battery, and battery is full of the back rectifier and is in floating charge state.Main frame MCU Single-chip Controlling is opened bypass static switch, turn-off the inversion static switch, the output load is by bypass static switch power supply output, this moment, main frame MCU single-chip microcomputer can not exported inverter control signal SPWM driving ripple, the grid of IGBT inverter bridge does not have driving voltage, inverter does not carry out inversion work, is in halted state fully.When city's electrical anomaly, main frame MCU single-chip microcomputer output frequency SPWM from narrow to wide drives ripple, and frequency is slowly increased to 50Hz by 10Hz, and the inverter output voltage of inverter also increases from low to high, main frame MCU Single-chip Controlling is opened the inversion static switch simultaneously, closes bypass static switch; Load is changeed by inverter inversion output power supply.This mode of operation is just often directly exported by bypass at civil power, without rectification and inversion Two Stages, and the efficient height of complete machine, energy-saving run, but the switching time of inversion output and bypass output is long, and incompatible to the equipment of requirement is arranged switching time; Starting mode is the slow startup of frequency conversion, is applicable to less demanding dynamic property load switching time or the big electric machinery load of startup impulse current, realizes the reserve emergency service.The efficient of complete machine is up to 98%, than the electric weight of the energy-conservation 5%-10% of online pair of pattern conversion (UPS).
As seen, the user can be provided with the mode of operation of power supply according to the load equipment situation of oneself, computer and precision equipment are selected online pair of conversion mode of operation (UPS), normal load choice of equipment economic operation model (ECO), the slow contingency mode (EPS) that starts of motor load choice of equipment frequency conversion, and the adaptive load ability is strong, of many uses.ECO economic operation model overall efficiency can reach 97%, 1.8 milliseconds of change-over times, the slow startup of EPS frequency conversion contingency mode can be by 1: 1 times of line-start motor, overall efficiency can reach 98%, select different pattern work according to different loads, can save energy 5%-10%, this circuit performance is stable, cost is low, and is simple to operate.
Claims (10)
1. multi-mode working UPS, comprise the civil power input, storage battery, rectifier, inverter, it is characterized in that: also comprise bypass static switch, the inversion static switch, the MCU single chip machine controlling circuit, outside input circuit, outside output circuit, civil power imports one the tunnel successively through rectifier, inverter, the inversion static switch is to exchanging output, export to exchanging through bypass static switch on another road, storage battery is connected the tie point of rectifier output end and inverter input, MCU single chip machine controlling circuit output bypass static switch controls signal to bypass static switch, output inversion static switch controls signal to the inversion static switch, the output inverter control signal is to inverter, output services status data signal is imported civil power input sample signal to outside output circuit, import the signal of outside input circuit input.
2. power supply according to claim 1 is characterized in that: the MCU single chip machine controlling circuit is also exported rectification and is controlled signal to rectifier, input storage battery sampled signal, input inversion sampled signal, input AC output sampled signal.
3. power supply according to claim 1, it is characterized in that: described MCU single chip machine controlling circuit comprises main frame MCU single chip machine controlling circuit and shows the MCU single chip machine controlling circuit, main frame MCU single chip machine controlling circuit transmits data through serial line interface with showing the MCU single chip machine controlling circuit, the bypass static switch control signal of described MCU single chip machine controlling circuit output, inversion static switch control signal, inverter control signal is the output of main frame MCU single chip machine controlling circuit, the civil power input sample signal of described MCU single chip machine controlling circuit input is the input of main frame MCU single chip machine controlling circuit, the operating state data signal of described MCU single chip machine controlling circuit output is for showing the output of MCU single chip machine controlling circuit, and the outside input circuit input signal of described MCU single chip machine controlling circuit input is for showing the input of MCU single chip machine controlling circuit.
4. power supply according to claim 3 is characterized in that: described main frame MCU single chip machine controlling circuit is also exported rectification and is controlled signal to rectifier, input storage battery sampled signal, input inversion sampled signal, input AC output sampled signal.
5. according to each described power supply of claim 1 to 4, it is characterized in that: described outside output circuit is display circuit or warning circuit, described outside input circuit is a key circuit, MCU single chip machine controlling circuit output services status data signal to display circuit shows or warning circuit is reported to the police, the signalization of input key circuit input.
6. according to each described power supply of claim 1 to 4, it is characterized in that: described outside output circuit and outside input circuit are serial line interface, and the MCU single chip machine controlling circuit connects background monitoring through serial line interface.
7. according to claim 3 or 4 described power supplys, it is characterized in that: the MCU chip of described main frame MCU single chip machine controlling circuit and demonstration MCU single chip machine controlling circuit all adopts MC9S08AW16.
8. power supply according to claim 7 is characterized in that: described inverter adopts the IGBT inverter bridge, and main frame MCU single chip machine controlling circuit output inverter control signal SPWM drives the grid of ripple to the IGBT inverter bridge.
9. according to claim 2 or 4 described power supplys, it is characterized in that: described rectifier adopts controllable silicon bridge-type rectifier, and the rectification of described output controls signal to the controllable silicon grid of controllable silicon bridge-type rectifier.
10. according to each described power supply of claim 1 to 4, it is characterized in that: described bypass static switch and inversion static switch all adopt the controllable silicon of reverse parallel connection, the static switch control signal of described output acts on reverse parallel connection silicon controlled grid, triggers reverse parallel connection controllable silicon conducting or ends.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009201744117U CN201541145U (en) | 2009-11-04 | 2009-11-04 | UPS (Uninterrupted Power Supply) capable of working under multiple modes |
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| CN2009201744117U CN201541145U (en) | 2009-11-04 | 2009-11-04 | UPS (Uninterrupted Power Supply) capable of working under multiple modes |
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| CN102195325A (en) * | 2011-05-27 | 2011-09-21 | 浪潮电子信息产业股份有限公司 | Power supply method of energy-saving container |
| CN102545657A (en) * | 2010-12-21 | 2012-07-04 | 广东易事特电源股份有限公司 | Input rectification circuit for auxiliary power supply |
| CN102738814A (en) * | 2011-04-01 | 2012-10-17 | 蔡朝进 | Electric power adjusting apparatus |
| CN102769336A (en) * | 2012-08-08 | 2012-11-07 | 江苏银佳企业集团有限公司 | Single-phase inverter for emergency power supply |
| CN101699702B (en) * | 2009-11-04 | 2012-12-05 | 佛山市柏克电力设备有限公司 | Multi-mode working UPS |
| CN104184198A (en) * | 2014-09-16 | 2014-12-03 | 哈尔滨恒誉名翔科技有限公司 | Super capacitor charger based on STM 32F407IG |
| WO2014206114A1 (en) * | 2013-06-28 | 2014-12-31 | 华为技术有限公司 | Uninterrupted power supply method and uninterrupted power supply |
| CN105226809A (en) * | 2015-09-02 | 2016-01-06 | 湖南理工学院 | A kind of ups system ECO operational mode alarm and display logic |
| CN107404242A (en) * | 2017-09-15 | 2017-11-28 | 苏州加士革电子科技有限公司 | A kind of multi-mode Schottky diode rectification circuit for mobile phone wireless charging |
| CN108879938A (en) * | 2018-07-11 | 2018-11-23 | 佛山市众盈电子有限公司 | A kind of CPU integrated control system of high-frequency high-power UPS |
| CN117110936A (en) * | 2023-10-25 | 2023-11-24 | 深圳市强晟电子科技有限公司 | UPS running state prediction maintenance system based on time sequence analysis |
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| CN101699702B (en) * | 2009-11-04 | 2012-12-05 | 佛山市柏克电力设备有限公司 | Multi-mode working UPS |
| CN102545657B (en) * | 2010-12-21 | 2014-07-09 | 广东易事特电源股份有限公司 | Input rectification circuit for auxiliary power supply |
| CN102545657A (en) * | 2010-12-21 | 2012-07-04 | 广东易事特电源股份有限公司 | Input rectification circuit for auxiliary power supply |
| CN102738814A (en) * | 2011-04-01 | 2012-10-17 | 蔡朝进 | Electric power adjusting apparatus |
| CN102195325A (en) * | 2011-05-27 | 2011-09-21 | 浪潮电子信息产业股份有限公司 | Power supply method of energy-saving container |
| CN102769336B (en) * | 2012-08-08 | 2015-04-01 | 江苏银佳企业集团有限公司 | Single-phase inverter for emergency power supply |
| CN102769336A (en) * | 2012-08-08 | 2012-11-07 | 江苏银佳企业集团有限公司 | Single-phase inverter for emergency power supply |
| WO2014206114A1 (en) * | 2013-06-28 | 2014-12-31 | 华为技术有限公司 | Uninterrupted power supply method and uninterrupted power supply |
| US9729007B2 (en) | 2013-06-28 | 2017-08-08 | Huawei Technologies Co., Ltd. | Uninterruptible power supplying method and uninterruptible power supply |
| CN104184198A (en) * | 2014-09-16 | 2014-12-03 | 哈尔滨恒誉名翔科技有限公司 | Super capacitor charger based on STM 32F407IG |
| CN104184198B (en) * | 2014-09-16 | 2024-01-02 | 哈尔滨工程北米科技有限公司 | Super capacitor charger based on STM32F407IG |
| CN105226809A (en) * | 2015-09-02 | 2016-01-06 | 湖南理工学院 | A kind of ups system ECO operational mode alarm and display logic |
| CN107404242A (en) * | 2017-09-15 | 2017-11-28 | 苏州加士革电子科技有限公司 | A kind of multi-mode Schottky diode rectification circuit for mobile phone wireless charging |
| CN107404242B (en) * | 2017-09-15 | 2019-08-13 | 苏州加士革电子科技有限公司 | A kind of multi-mode Schottky diode rectification circuit for mobile phone wireless charging |
| CN108879938A (en) * | 2018-07-11 | 2018-11-23 | 佛山市众盈电子有限公司 | A kind of CPU integrated control system of high-frequency high-power UPS |
| CN117110936A (en) * | 2023-10-25 | 2023-11-24 | 深圳市强晟电子科技有限公司 | UPS running state prediction maintenance system based on time sequence analysis |
| CN117110936B (en) * | 2023-10-25 | 2023-12-26 | 深圳市强晟电子科技有限公司 | UPS running state prediction maintenance system based on time sequence analysis |
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Owner name: FOSHAN BAIKEXIN NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FOSHAN BAYKEE ELECTRIC POWER EQUIPMENTS CO., LTD. Effective date: 20150902 |
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Effective date of registration: 20150902 Address after: 528051, No. 115, No. four, No. seven, Zhangcha Road, Chancheng District, Guangdong, Foshan Province, China, two to the third floor Patentee after: Foshan Burke New Energy Technology Co.,Ltd. Address before: 528051, No. 1, building 119, No. 2, No. 1, Zhangcha, Guangdong, Foshan Patentee before: Foshan Baykee Electric Power Equipments Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100804 |