CN103560558A - Elevator power failure emergency power supply - Google Patents
Elevator power failure emergency power supply Download PDFInfo
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- CN103560558A CN103560558A CN201310533174.XA CN201310533174A CN103560558A CN 103560558 A CN103560558 A CN 103560558A CN 201310533174 A CN201310533174 A CN 201310533174A CN 103560558 A CN103560558 A CN 103560558A
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- inverter
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- power supply
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Abstract
The invention discloses an elevator power failure emergency power supply which comprises an inverter, a storage battery, a charger and a contactor connected between the inverter and an elevator. The charger comprises an electric supply detection portion, is connected with the inverter and is arranged in the mode that the charger sends a control signal to the inverter according to whether electric supply is available. The inverter further comprises a switch and is arranged in the mode that when the electric supply detection portion detects an electric supply, the inverter does not work whether the switch is turn off or on; when the electric supply detection portion detects no electric supply is available and the switch is off, the inverter does not work; when the electric supply detection portion detects that the electric supply is available and the switch is on, the inverter is started and triggers the contactor to be connected so that power can be supplied to the elevator through the contactor. The elevator power failure emergency power supply can reduce unnecessary work time, prolong service life, is independent to a control system of the elevator and is suitable for elevators of various types.
Description
Technical field
The present invention relates to electric supply installation, particularly a kind of elevator power failure emergency power supply.
Background technology
Elevator is used civil power as electric power source when normal operation, and uses emergency power supply as electric power source at civil power during because of a variety of causes stop supplies, thus by car slow running to level position and open the door, to ensure occupant's safety.
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, rectifier 102 is direct voltage by AC voltage conversion, the output voltage of 103 pairs of rectifiers 102 of smmothing capacitor carries out smoothly, and 104 of DC-to-AC converter are alternating voltage the hoist engine 105 that offers elevator through the level and smooth DC voltage conversion of smmothing capacitor 103.
In Fig. 1, also illustrate the control system of elevator, comprise power circuit 106 and control power circuit 107-108, wherein power circuit 106 becomes required electric power by the power converter that is supplied to control system and offers to control power circuit 107-108.
In addition, the power supply device in Fig. 1 109 comprises rectifier 110, DC-to-AC converter 111, charger 112 and storage battery 113.Wherein, when industrial power 101 normal supply alternating electromotive force, rectifier 110 carries out rectification by the alternating electromotive force of industrial power 101 supplies, DC-to-AC converter 11 is drive system and the control system that square wave offers elevator by the sinusoidal wave power converter after rectifier 110 rectifications, meanwhile, the electric power that charger 112 utilizes industrial power 101 to supply with charges to storage battery 113.When causing industrial power 101 to stop supplying with alternating current due to reasons such as accidents, in power supply device 109, switch to by storage battery 113 and carry out electric power supply, that is the direct current power that, DC-to-AC converter 111 provides storage battery 113 is transformed to drive system and the control system that square wave offers elevator.
As can be seen here, in elevator supply system shown in Fig. 1, though DC-to-AC converter 111 during industrial power 101 normal power supplies or by storage battery 113, powered emergent during all work continuously, therefore there is the shorter problem in useful life of DC-to-AC converter.
Summary of the invention
The object of one aspect of the present invention is to provide 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 that is 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 being 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 and has or not commercial power supply and transmit control signal to described inverter 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, no matter the state of described switch is for disconnecting or closed, and described inverter is not all worked; When civil power test section detects without commercial power supply, and the state of described switch is when disconnecting, and described inverter is not worked; When civil power test section detects without the state of commercial power supply and described switch when closed, described inverter startup also 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, in the useful life that can farthest improve this emergency power supply, this has also improved the coefficient of safety of elevator to a certain extent.And elevator power failure emergency power supply of the present invention does not need to get involved the control system of elevator self, be only to provide emergency electric power, also just can be applicable to the elevator of any model.
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 elaborated.
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 storage battery 2 chargings; Storage battery 2, it charges when elevator normally moves with civil power under the control of charger 1, and to inverter 3, provides direct current input when civil power stop supplies; Inverter 3, it is connected to elevator by contactor 4, and when civil power stop supplies, the direct current that inverter 3 provides storage battery is transformed to alternating current and is transported to elevator by contactor 4; Contactor 4, it is only triggered and is connected by inverter 3 after inverter 3 starts, so that the alternating current of inverter 3 outputs is sent to elevator, at emergency power supply of the present invention duration of work not, contactor 4 is in off-state, makes to be supplied between the civil power of elevator and inverter 3 to keep isolation.
Be specially, whether 5 pairs of civil power test sections have commercial power supply to detect, and according to testing result, inverter 3 is transmitted control signal, control signal can be the city's electro-detection useful signal sending to inverter 3 when commercial power supply being detected and the city's electro-detection invalid signals sending to inverter 3 when detecting without commercial power supply, can be also not to inverter 3 transmitted signals and for example enable signal sending to inverter 3 when detecting without commercial power supply or start and allow signal when commercial power supply being detected.But inverter 3 not only starts according to this control signal, and also needing according to switch 6 is in closure state or off-state.Meanwhile, also according to the state of switch 6, do not carry out separately the startup of control inverter 3.That is to say, when civil power test section 5 has detected civil power, no matter the state of switch 6 is for disconnecting or closed, and inverter 3 is not all worked, to keep zero-power state; When civil power test section 5 detects without commercial power supply, and the state of switch 6 is when disconnecting, and inverter 3 is not also worked, and keeps equally zero-power state; When civil power test section 5 detects without the state of commercial power supply and switch 6 when closed, inverter 3 just starts, for example, while boosting to gradually the voltage (380v) of setting, trigger contactor 4 conductings to pass through contactor 4 to described elevator supply, elevator receives after emergency service, and slow running is to level position and open the door.During elevator emergency operation, speed is equivalent to the about 1/10 of normal running speed, 1/10 while being about normal operation 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, by civil power test section 5 and switch 6, carry out the startup of co-controlling inverter, thereby during civil power regular supply, inverter 3 is neither in running order also not in holding state, but completely in zero-power state, thereby the working life that has greatly extended inverter 3.Simultaneously, even if occur that abnormal conditions cause civil power stop supplies, if switch 6 for example, in off-state (can be set to switch 6 disconnect during unmanned use at night elevator), inverter 3 is also in complete idle zero-power state, thereby reduce the unnecessary operating time, further extended the working life of inverter 3.
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 the state of Simultaneous Switching 6 of receiving the control signal that civil power test section 6 sends when civil power stop supplies being detected is when closed; postpone just to start after this scheduled time t; to avoid after civil power stop supplies momentary recovery supply in the situation that (such as close electric brake etc. by mistake) start inverter 3, thereby further protect inverter 3, extend the useful life of inverter 3.Can arrange according to actual needs this time of delay, for example, also can be set to 0s, and meeting does not need to postpone after above-mentioned entry condition and directly start inverter 3.
At elevator power failure emergency power supply duration of work of the present invention, if civil power test section 5 detects city power recovery supply, inverter 3 quits work immediately, and elevator recovers normal mains-supplied.If for example, or the state of switch 6 becomes disconnection (in determining elevator without occupant time the state of switch 6 can be become to disconnection) at emergency power supply duration of work, inverter 3 also quits work immediately.So can guarantee inverter 3 do not need emergent in complete idle zero-power state.
In one embodiment of the invention, at emergency power supply duration of work, if civil power test section 5 does not detect city power recovery supply, and the state of switch 6 does not become disconnection yet, but elevator may complete the action of leveling opening, at this moment also can make inverter 3 quit work to reduce its unnecessary operating time by other conditions are set.For example setting a schedule operating time, can be 1 minute or 2 minutes, after the continuous working period at inverter 3 since time startup reaches this schedule operating time, has just quit work immediately.For example set again a scheduled current ratio, after starting, inverter 3 detects and records the current value of inverter 3, when ratio between the lowest high-current value that the current operating current of inverter 3 and its reached since time starting being detected and reach this scheduled current ratio, inverter 3 quits work immediately.Again for example, set a scheduled current difference, after starting, inverter 3 detects and records the current value of inverter 3, when difference between the lowest high-current value that the current operating current of inverter 3 and its reached since time starting being detected and reach this scheduled current difference, inverter 3 quits work immediately.Or the predetermined condition that also can set other quits work inverter 3, thereby can be when elevator completes emergency action, even if civil power does not recover supply, the state of switch 6 does not become while disconnecting yet, also can allow inverter 3 quit work immediately, further to extend the useful life of inverter 3.
In another embodiment of the present invention, for make inverter 3 when quitting work completely in zero-power state, civil power test section 3 and switch 6 can carry out the start and stop of control inverter 3 by the accessory power supply portion of control inverter 3 to the power supply of 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 and storage battery 2 of inverter 3, is used for controlling the power supply of the accessory power supply portion of 2 pairs of inverters 3 of storage battery, thereby controls the start and stop of accessory power supply portion.Can certainly other voltage source 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, so that the control unit to elevator when detecting without commercial power supply sends emergency power supply switching signal, thereby inform the control unit of elevator, civil power is stop supplies, emergency power supply is prepared to elevator supply, makes the control unit of elevator prepare to receive emergency power supply power supply.By the control unit to elevator, send notification signal, the response speed in the time of can improving elevator emergency, completes the leveling opening action of elevator as early as possible, ensures occupant's safety.
In an embodiment of the invention, civil power test section 5 can be realized with the accessory power supply portion in charger 1, thereby simplifies circuit structure, reduces manufacturing cost.
Because elevator power failure emergency power supply of the present invention is independent of apparatus for controlling elevator, between the two can be without the contact of any control signal, only having has a power failure there is unidirectional power supply when emergent, therefore applicable to the elevator of any model.
For middle low power elevator, can use single phase industrial frequence inverter or single-phase high frequency inverter as inverter 3, in high-power elevator, can use three-phase main-frequency inverter as inverter 3.It is that the chip of HT1156IA is as control chip that single phase industrial frequence inverter can be selected model, it is that the chip of HT1215 is as control chip that single-phase high frequency inverter can be selected model, three-phase main-frequency inverter can select model be the chip of HT3156IA as control chip, said chip is Harmotech Technology (Beijing) Co., Ltd. and manufactures.
The present invention is not limited to above-mentioned particular implementation example; do not deviating under spirit of the present invention and real situation thereof; skilled personnel can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to claims protection range of the present invention within.
Claims (9)
1. an elevator power failure emergency power supply, comprises inverter, the storage battery being 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 and has or not commercial power supply and transmit control signal to described inverter according to detecting;
Described inverter also comprises a switch, and described inverter is configured to:
When described civil power test section has detected commercial power supply, no matter the state of described switch is for disconnecting or closed, and described inverter is not all worked;
When described civil power test section detects without commercial power supply, and the state of described switch is when disconnecting, and described inverter is not worked;
When described civil power test section detects without the state of commercial power supply and described switch when closed, described inverter startup also 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 is configured to detect without the state of commercial power supply and described switch when closed when described civil power test section, and described inverter starts and triggers described contactor conducting to pass through described contactor to described elevator supply after delay scheduled time.
3. elevator power failure emergency power supply as claimed in claim 1, is characterized in that, described inverter is configured at its duration of work, and the state that city power recovery supply or described switch detected when described civil power test section becomes while disconnecting, and 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 when the state of described switch is closed, in following arbitrary situation, quits work immediately:
The continuous working period of described inverter since time startup detected and reach the first predetermined value;
The ratio detecting between the lowest high-current value that the current working current value of described inverter and described inverter reached since time starting reaches the second predetermined value;
The difference detecting between the lowest high-current value that the current working current value of described inverter and described inverter reached since time starting reaches the 3rd predetermined value.
5. the elevator power failure emergency power supply as described in any one in claim 1 to 4, is characterized in that, described civil power test section and described switch are controlled described inverter start and stop by controlling the start and stop of the accessory power supply portion of described inverter.
6. elevator power failure emergency power supply as claimed in claim 5, 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 of described accessory power supply portion.
7. the elevator power failure emergency power supply as described in any one in claim 1 to 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 commercial power supply to the control unit of described elevator and sends emergency power supply switching signal.
8. the elevator power failure emergency power supply as described in any one in claim 1 to 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 as described in any one in claim 1 to 4, is characterized in that, the chip that described inverter employing model is 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103560558A true CN103560558A (en) | 2014-02-05 |
| CN103560558B CN103560558B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
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| CN (1) | CN103560558B (en) |
Cited By (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 |
| CN107934706A (en) * | 2017-12-21 | 2018-04-20 | 康姆帕斯电子科技衡水有限公司 | A kind of novel electromagnetic induction control elevator power failure leveling device and method |
| CN112684331A (en) * | 2020-12-15 | 2021-04-20 | 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 (4)
| 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 |
| 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 |
-
2013
- 2013-10-31 CN CN201310533174.XA patent/CN103560558B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| 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 |
Cited By (4)
| 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 |
| CN107934706A (en) * | 2017-12-21 | 2018-04-20 | 康姆帕斯电子科技衡水有限公司 | A kind of novel electromagnetic induction control elevator power failure leveling device and method |
| 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 |
| CN112684331A (en) * | 2020-12-15 | 2021-04-20 | 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 |
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| Publication number | Publication date |
|---|---|
| CN103560558B (en) | 2016-04-13 |
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Granted publication date: 20160413 Termination date: 20201031 |