CN103560558B - A kind of elevator power failure emergency power supply - Google Patents
A kind of elevator power failure emergency power supply Download PDFInfo
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- CN103560558B CN103560558B CN201310533174.XA CN201310533174A CN103560558B CN 103560558 B CN103560558 B CN 103560558B CN 201310533174 A CN201310533174 A CN 201310533174A CN 103560558 B CN103560558 B CN 103560558B
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- inverter
- power supply
- elevator
- test section
- switch
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Abstract
The invention discloses a kind of elevator power failure emergency power supply, the contactor comprising inverter, storage battery, charger and be connected between inverter and elevator.Charger comprises civil power test section, and it is connected to inverter and is configured to transmit control signal to inverter with or without commercial power supply according to detecting.Inverter also comprises a switch, and inverter is configured to: when civil power test section has detected commercial power supply, and no matter the state of switch is off or closed, and inverter does not all work; When civil power test section detects without commercial power supply, and when the state of switch is off, inverter does not work; When civil power test section detect without commercial power supply and the state of switch for time closed, inverter startup triggering contactors conducting with by contactor to elevator supply.Elevator power failure emergency power supply of the present invention can reduce the unnecessary operating time, improves overall work life-span of emergency power supply, and independent of the control system of elevator, is applicable to the elevator of any model.
Description
Technical field
The present invention relates to electric supply installation, particularly a kind of elevator power failure emergency power supply.
Background technology
Elevator uses civil power as electric power source when normal operation, and at civil power because a variety of causes stops for emergency power supply at once as electric power source, thus car slow running is opened the door to level position, to ensure the safety of occupant.
Fig. 1 is the structural representation of the elevator supply system in patent documentation 200810131979.0.
As shown in Figure 1, the drive system of this elevator comprises rectifier 102, smmothing capacitor 103, DC-to-AC converter 104 and elevator hoist 105.Wherein, alternating voltage is transformed to direct voltage by rectifier 102, the output voltage of smmothing capacitor 103 pairs of rectifiers 102 is smoothing, and DC-to-AC converter 104 is alternating voltage the DC voltage conversion level and smooth through smmothing capacitor 103 and is supplied to the hoist engine 105 of elevator.
Also illustrate the control system of elevator in Fig. 1, comprise power circuit 106 and control power circuit 107-108, wherein the power converter being supplied to control system is become required electric power and is supplied to control power circuit 107-108 by power circuit 106.
In addition, the power supply device 109 in Fig. 1 comprises rectifier 110, DC-to-AC converter 111, charger 112 and storage battery 113.Wherein, when industrial power 101 normal supply alternating electromotive force, the alternating electromotive force that industrial power 101 is supplied by rectifier 110 carries out rectification, sinusoidal wave power converter after rectifier 110 rectification is drive system and the control system that square wave is supplied to elevator by DC-to-AC converter 11, meanwhile, the electric power that charger 112 utilizes industrial power 101 to supply charges to storage battery 113.When causing industrial power 101 to stop supply alternating current due to reasons such as accidents, then switch in power supply device 109 and carry out electric power supply by storage battery 113, that is, the direct current power that storage battery 113 provides is transformed to drive system and the control system that square wave is supplied to elevator by DC-to-AC converter 111.
As can be seen here, in elevator supply system shown in Fig. 1, no matter DC-to-AC converter 111 works all continuously during industrial power 101 normal power supply or in the emergent period of being undertaken powering by storage battery 113, therefore there is shorter problem in the useful life of DC-to-AC converter.
Summary of the invention
The object of one aspect of the present invention is that providing a kind of can reduce the unnecessary operating time, improves the elevator power failure emergency power supply in overall work life-span.
The present invention's object is on the other hand to provide a kind of control system independent of elevator, is applicable to the emergency power supply of the elevator of any model.
For this reason, the invention provides a kind of elevator power failure emergency power supply, comprise inverter, the storage battery be connected with the input of described inverter and be connected to civil power with the charger to described charge in batteries, wherein: described elevator power failure emergency power supply also comprises contactor, it is connected between described inverter and described elevator, and is configured to conducting under the triggering of described inverter; Described charger comprises civil power test section, and it is connected to described inverter and is configured to transmit control signal to described inverter with or without commercial power supply according to detecting;
Described inverter also comprises a switch, and described inverter is configured to: when civil power test section has detected commercial power supply, and no matter the state of described switch is off or closed, and described inverter does not all work; When civil power test section detects without commercial power supply, and when the state of described switch is off, described inverter does not work; When civil power test section detect without commercial power supply and the state of described switch for time closed, described inverter startup and trigger described contactor conducting with by described contactor to described elevator supply.
The elevator power failure emergency power supply of the application of the invention, farthest can improve the useful life of this emergency power supply, and this also improves the coefficient of safety of elevator to a certain extent.Further, elevator power failure emergency power supply of the present invention does not need the control system getting involved elevator self, is only to provide emergency electric power, just can be applicable to the elevator of any model yet.
Accompanying drawing explanation
Fig. 1 is the structural representation of elevator supply system of the prior art;
Fig. 2 is the structural representation of elevator power failure emergency power supply of the present invention.
Embodiment
Below in conjunction with accompanying drawing, elevator power failure emergency power supply of the present invention is described in detail.
Fig. 2 is the structural representation of elevator power failure emergency power supply of the present invention.As shown in Figure 2, elevator power failure emergency power supply of the present invention comprises: charger 1, and it receives commercial power supply, and utilizes civil power to charge to storage battery 2; Storage battery 2, it charges under the control of charger 1 when elevator normally runs with civil power, and stops at once providing direct current to input to inverter 3 at civil power; Inverter 3, it is connected to elevator by contactor 4, and stop for seasonable at civil power, the DC power conversion that storage battery provides by inverter 3 is alternating current and is transported to elevator by contactor 4; Contactor 4, it is only triggered by inverter 3 and connects after inverter 3 starts, and is sent to elevator, at emergency power supply of the present invention not duration of work with the alternating current exported by inverter 3, contactor 4 is in off-state, makes to be supplied between the civil power of elevator and inverter 3 to keep isolation.
Charger 1 also comprises the civil power test section 5 being connected to inverter 3, and inverter 3 also comprises switch 6, and civil power test section 5 and switch 6 acting in conjunction carry out the startup of control inverter 3.
Be specially, whether civil power test section 5 is to having commercial power supply to detect, and according to testing result, inverter 3 is transmitted control signal, control signal can be when commercial power supply being detected to inverter 3 send city's electro-detection useful signal and detect without during commercial power supply to inverter 3 send city's electro-detection invalid signals, also can be when commercial power supply being detected not to inverter 3 send signal and detect without during commercial power supply to inverter 3 send such as enable signal or startup permission signal.But inverter 3 not only starts according to this control signal, also need to be in closure state or off-state according to switch 6.Meanwhile, the startup of control inverter 3 is not also carried out separately according to the state of switch 6.That is, when civil power test section 5 has detected civil power, no matter the state of switch 6 has been off or closed, and inverter 3 does not all work, to keep zero-power state; When civil power test section 5 detects without commercial power supply, and when the state of switch 6 is off, inverter 3 does not also work, same maintenance zero-power state; When civil power test section 5 detects without commercial power supply and the state of switch 6 is closed, inverter 3 just starts, when boosting to voltage (such as the 380v) of setting gradually, triggering contactors 4 conducting is to pass through contactor 4 to described elevator supply, after elevator receives emergency service, slow running is to level position and open the door.During elevator emergency operation, speed is equivalent to about 1/10 of normal running speed, is about 1/10 when normally running according to the known now power demand of horse-power formula P=FV.Rate request during elevator emergency operation is completed by elevator control unit.
In this embodiment, carried out the startup of co-controlling inverter by civil power test section 5 and switch 6, thus during civil power regular supply, inverter 3 is neither in running order is not also in holding state, but be in zero-power state completely, thus greatly extend the working life of inverter 3.Simultaneously, even if occur that abnormal conditions cause civil power to stop supply, if switch 6 is in off-state (switch 6 can be set to disconnect during such as unmanned use at night elevator), inverter 3 is also in complete idle zero-power state, thus reduce the unnecessary operating time, extend the working life of inverter 3 further.
In an embodiment of the present invention; one predetermined t time of delay can be set; such as 10s, 20s etc.; configuration inverter 3 is for receiving civil power test section 6 when the state of civil power stopping for the Simultaneous Switching 6 of the seasonable control signal sent being detected for closing; just start after postponing this scheduled time t; start inverter 3 to avoid (such as closing electric brake etc.) when momentary recovery is supplied after civil power stops supply by mistake, thus protect inverter 3 further, extend the useful life of inverter 3.This time of delay can be arranged according to actual needs, such as, also can be set to 0s, does not need postpone and directly start inverter 3 after namely meeting above-mentioned entry condition.
At elevator power failure emergency power supply duration of work of the present invention, if civil power test section 5 detects that city power recovery is supplied, then inverter 3 quits work immediately, and elevator recovers normal mains-supplied.If or the state of switch 6 becomes disconnection (such as when determining the state of switch 6 to be become disconnection without during occupant in elevator) at emergency power supply duration of work, then inverter 3 also quits work immediately.So can guarantee that inverter 3 is in complete idle zero-power state when not needing to meet an urgent need.
In one embodiment of the invention, at emergency power supply duration of work, if civil power test section 5 does not detect that city power recovery is supplied, and the state of switch 6 does not also become disconnection, but elevator may complete the action of leveling opening, at this moment also inverter 3 can be made to quit work to reduce its unnecessary operating time by arranging other conditions.Such as setting a schedule operating time, can be 1 minute or 2 minutes, has just quit work immediately after the continuous working period of inverter 3 since time startup reaches this schedule operating time.Such as set a scheduled current ratio again, detect after inverter 3 starts and record the current value of inverter 3, when detecting that the ratio between the operating current that inverter 3 is current and its lowest high-current value reached since secondary startup reaches this scheduled current ratio, inverter 3 quits work immediately.Again such as, set a scheduled current difference, detect after inverter 3 starts and record the current value of inverter 3, when detecting that the difference between the operating current that inverter 3 is current and its lowest high-current value reached since secondary startup reaches this scheduled current difference, inverter 3 quits work immediately.Or the predetermined condition that also can set other quits work to make inverter 3, thus can when elevator completes emergency action, even if civil power does not recover supply, when the state of switch 6 does not become disconnection yet, also inverter 3 can be allowed to quit work immediately, to extend the useful life of inverter 3 further.
In another embodiment of the invention, in order to make inverter 3 be in zero-power state completely when quitting work, civil power test section 3 and switch 6 carry out the start and stop of control inverter 3 by the power supply of accessory power supply portion to inverter 3 of control inverter 3.When the accessory power supply portion of control inverter 3 does not power to inverter 3, the stand-by power consumption of inverter is zero.
In addition, in order to simplify circuit structure, switch 6 can be connected between the accessory power supply portion of inverter 3 and storage battery 2, is used for the power supply in the accessory power supply portion controlling storage battery 2 pairs of inverters 3, thus controls the start and stop in accessory power supply portion.Other voltage source can certainly be set for the accessory power supply portion of inverter 3.
In optional embodiment of the present invention, civil power test section 3 also can be connected to the control unit of elevator, to send emergency power supply switching signal without during commercial power supply to the control unit of elevator detecting, thus inform the control unit of elevator, civil power has stopped supply, emergency power supply prepares to elevator supply, makes the control unit of elevator prepare to receive emergency power supply and powers.Send notification signal by the control unit to elevator, response speed during elevator emergency can be improved, complete the leveling opening action of elevator as early as possible, ensure the safety of occupant.
In an embodiment of the invention, civil power test section 5 can use the accessory power supply portion in charger 1 to realize, thus simplifies circuit structure, reduces manufacturing cost.
Because elevator power failure emergency power supply of the present invention is independent of apparatus for controlling elevator, can come and go without any control signal between the two, only have when having a power failure emergent and there is unidirectional power supply, be therefore applicable to the elevator of any model.
For middle low power elevator, single phase industrial frequence inverter or single-phase high frequency inverter can be used as inverter 3, in high-power elevator, three-phase main-frequency inverter can be used as inverter 3.Single phase industrial frequence inverter can select model to be that the chip of HT1156IA is as control chip, single-phase high frequency inverter can select model to be that the chip of HT1215 is as control chip, three-phase main-frequency inverter can select model be the chip of HT3156IA as control chip, said chip be Harmotech Technology (Beijing) Co., Ltd. manufacture.
The present invention is not limited to above-mentioned particular implementation example; do not deviating under the present invention's spirit and real situation thereof; those skilled in the art can make various corresponding change and distortion according to the present invention, but these corresponding changes and distortion all should belong within claims protection range of the present invention.
Claims (9)
1. an elevator power failure emergency power supply, comprises inverter, the storage battery be connected with the input of described inverter and is connected to civil power with the charger to described charge in batteries, it is characterized in that:
Described elevator power failure emergency power supply also comprises contactor, and it is connected between described inverter and described elevator, and is configured to conducting under the triggering of described inverter;
Described charger comprises civil power test section, and it is connected to described inverter and is configured to transmit control signal to described inverter with or without commercial power supply according to detecting;
Described inverter also comprises a switch, described inverter not only starts according to described control signal, but be also in closure state according to described switch or off-state starts, described inverter does not also start according to the state of described switch separately simultaneously, and described inverter is configured to:
When described civil power test section has detected commercial power supply, no matter the state of described switch has been off or closed, and described inverter does not all work;
When described civil power test section detects without commercial power supply, and when the state of described switch is off, described inverter does not work;
When described civil power test section detect without commercial power supply and the state of described switch for time closed, described inverter startup and trigger described contactor conducting with by described contactor to described elevator supply.
2. elevator power failure emergency power supply as claimed in claim 1, it is characterized in that, described inverter be configured to when described civil power test section detect without commercial power supply and the state of described switch for time closed, described inverter start after delay scheduled time and trigger described contactor conducting with by described contactor to described elevator supply.
3. elevator power failure emergency power supply as claimed in claim 1, it is characterized in that, described inverter is configured at its duration of work, when described civil power test section detects that the state of city power recovery supply or described switch becomes disconnection, quits work immediately.
4. elevator power failure emergency power supply as claimed in claim 1, it is characterized in that, described inverter is configured at its duration of work, before described civil power test section detects city power recovery supply and the state of described switch for time closed, quit work immediately in following arbitrary situation:
Detect that the continuous working period of described inverter since time startup reaches the first predetermined value;
Detect that the ratio between the lowest high-current value that the current working current value of described inverter and described inverter have reached since time starting reaches the second predetermined value;
Detect that the difference between the lowest high-current value that the current working current value of described inverter and described inverter have reached since time starting reaches the 3rd predetermined value.
5. the elevator power failure emergency power supply according to any one of Claims 1-4, is characterized in that, described civil power test section and described switch control described inverter start and stop by the start and stop in the accessory power supply portion controlling described inverter.
6. elevator power failure emergency power supply as claimed in claim 5, it is characterized in that, described switch is connected between the accessory power supply portion of described inverter and described storage battery to control the start and stop in described accessory power supply portion.
7. the elevator power failure emergency power supply according to any one of Claims 1-4, it is characterized in that, described civil power test section is also connected to the control unit of described elevator, and is further configured to when detecting without the control unit transmission emergency power supply switching signal to described elevator during commercial power supply.
8. the elevator power failure emergency power supply according to any one of Claims 1-4, is characterized in that, described civil power test section is realized by the accessory power supply portion of described charger.
9. the elevator power failure emergency power supply according to any one of Claims 1-4, is characterized in that, described inverter adopts model to be that the chip of HT1156IA, HT1215 or HT3156IA is as control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533174.XA CN103560558B (en) | 2013-10-31 | 2013-10-31 | A kind of elevator power failure emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533174.XA CN103560558B (en) | 2013-10-31 | 2013-10-31 | A kind of elevator power failure emergency power supply |
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| Publication Number | Publication Date |
|---|---|
| CN103560558A CN103560558A (en) | 2014-02-05 |
| CN103560558B true CN103560558B (en) | 2016-04-13 |
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| CN201310533174.XA Expired - Fee Related CN103560558B (en) | 2013-10-31 | 2013-10-31 | A kind of elevator power failure emergency power supply |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416631A (en) * | 2016-05-23 | 2017-12-01 | 宁波经济技术开发区昊鸿电子有限公司 | A kind of power failure for synchro traction machine elevator is met an urgent need automatic rescue device |
| CN107934706B (en) * | 2017-12-21 | 2023-10-27 | 康姆帕斯电子科技衡水有限公司 | Electromagnetic induction control elevator power failure leveling device and method |
| CN112684331B (en) * | 2020-12-15 | 2022-09-27 | 日立楼宇技术（广州）有限公司 | Method, device and equipment for monitoring service life of contactor and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201553511U (en) * | 2009-05-22 | 2010-08-18 | 富士工业(青岛)电梯制造有限公司 | Elevator capable of utilizing solar energy and recycling electric energy |
| CN102074999A (en) * | 2011-01-10 | 2011-05-25 | 上海微频莱机电科技有限公司 | Emergency power supply system for elevator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11180654A (en) * | 1997-12-22 | 1999-07-06 | Toshiba Fa Syst Eng Corp | Rescue operation controller of elevator |
| JP2005015067A (en) * | 2003-06-23 | 2005-01-20 | Mitsubishi Electric Corp | Emergency operation device of elevator |
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2013
- 2013-10-31 CN CN201310533174.XA patent/CN103560558B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201553511U (en) * | 2009-05-22 | 2010-08-18 | 富士工业(青岛)电梯制造有限公司 | Elevator capable of utilizing solar energy and recycling electric energy |
| CN102074999A (en) * | 2011-01-10 | 2011-05-25 | 上海微频莱机电科技有限公司 | Emergency power supply system for elevator |
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| CN103560558A (en) | 2014-02-05 |
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