CN109720949A - Elevator power supply system - Google Patents
Elevator power supply system Download PDFInfo
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- CN109720949A CN109720949A CN201711037726.2A CN201711037726A CN109720949A CN 109720949 A CN109720949 A CN 109720949A CN 201711037726 A CN201711037726 A CN 201711037726A CN 109720949 A CN109720949 A CN 109720949A
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- power supply
- elevator
- power
- change
- over switch
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of elevator power supply system, it is to access elevator on AC network, provides three-phase alternating current by power grid for elevator power electric power loop, provide single-phase alternating current for elevator controlling electric power loop.On control electric power loop bus, several Switching Power Supplies are connected with, for providing different voltages/power grade control electricity.After power supply supervision unit detects power failure, switching switch is immediately controlled, the direct current of battery is respectively connected on electrical source of power circuit and control electric power loop.For above-mentioned power-supply system by the multiplexing to AC DC electric, structure is simple, high-efficient, and discharges passenger after capable of smoothly stopping when having a power failure.
Description
Technical field
The present invention relates to elevator supply technology, in particular to a kind of elevator power supply system.
Background technique
With the lasting intensification of urbanization process, more and more buildings start to rise sheer from level ground in city, and city is built
It builds space constantly to extend to vertical direction, this usage amount for also creating elevator climbs up and up.Use of the people to elevator
Also more and more frequently, therefore elevator has become the equipment closely bound up with people's daily life.Then, safety of the people to elevator
Property and reliability are also increasingly paid close attention to.
As a kind of electrical equipment, elevator needs electric energy that could work normally.Suddenly have a power failure, elevator can will be used
People be trapped in the carriage of elevator.It is saved by rescue personnel, generally requires the regular hour.It is stranded during stranded
The normal life and work of personnel will be greatly affected, and no small psychological pressure and panic mood can be also brought to them.
So battery can be configured in the power-supply system of elevator as backup power source.When have a power failure occur when, elevator can be with
Nearest floor is stopped by the power supply of battery, discharges the passenger in carriage.
But for the elevator power supply system of the prior art (such as Fig. 2), be by the DC inverter of battery 30 at it is outer
The consistent three-phase alternating current of network source 10, to elevator supply after power failure.Since there are many transformation of electrical energy links, often
It responds too slow.After power failure, backup power source cannot promptly restore electricity to elevator.In addition, on elevator controlling electric power loop usually
Power conversion is carried out using control transformer 23 and rectifier bridge stack 24, cannot keep in outer network source 10 and the switching of battery 30
Power supply.Therefore, emergency stop inevitably occurs for elevator, and very big impact is caused to passenger.
In addition, the loss of interruption items important parameter when will cause operation of control system power supply, needs to expend excessive
Time and valuable stand-by electric energy go to re-measure, calculate these parameters after just restart elevator.Therefore, although the prior art can be with
Accomplish to discharge passenger after having a power failure, but take long time, comfort level is poor, and no small puzzlement can be still brought to user.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of elevator power supply system, outer network source and standby can be promptly carried out
With the switching of power supply, make elevator uninterrupted power supply after power failure, it is steady to stop release passenger.
In order to solve the above technical problems, elevator power supply system provided by the invention comprising electric network source, further includes: dynamic
Power electric power loop, obtains three-phase alternating current from electric network source；Electric power loop is controlled, blow-up is obtained from electric network source
Galvanic electricity；Battery stores and provides DC power supply；First change-over switch, for being selected between electric network source and battery
Input as electrical source of power circuit all the way；Second change-over switch is made all the way for selecting between electric network source and battery
For the input for controlling electric power loop；Monitoring unit, for monitoring electric network source state, when finding power failure, the first conversion of control is opened
It closes and the second change-over switch acts.
Preferably, the rectifier, main capacitance, inverter and hoisting motor constitute the electrical source of power circuit of elevator, institute
It states control power source bus and Switching Power Supply constitutes the control electric power loop of elevator.
Preferably, the normally-closed contact of first change-over switch is connected between outer network source and the input side of rectifier,
The normally opened contact of first change-over switch is connected on the positive and negative end of battery and two phase line of input side of rectifier.
Preferably, the normally-closed contact of second change-over switch is connected between outer network source and control power source bus, institute
The normally opened contact for stating the second change-over switch is connected on the positive and negative both ends of battery and control power source bus.
Preferably, the quantity of first change-over switch and/or second change-over switch is at least one.
Preferably, first change-over switch and the second change-over switch quantity are respectively one and setting connects same
In tentaculum formula relay.
Preferably, the contactor relay is at least one.
Preferably, the Switching Power Supply is that Width funtion inputs and can be compatible with AC and DC input, the Switching Power Supply
Quantity is at least one.
Preferably, the battery is more piece lead-acid accumulator tandem compound.
Preferably, the monitoring unit be sampling electric network source supply control electric power loop this mutually come judge power grid electricity
The state in source, the monitoring unit pass through the power supply for opening/disconnecting the coil to the first change-over switch and the second change-over switch
Carry out control action.
Elevator power supply system of the invention, electrical source of power circuit and control electric power loop under normal circumstances, by outer net
Power source supplies AC.Once monitoring unit detects that outer network source cannot power, can be cut by the first switching switch and second
Change electrical source of power circuit and control electric power loop that the direct current of battery is directly fed elevator by switch respectively.Because of main capacitance
A part of electric energy is stored with the output lateral capacitance of Switching Power Supply, it can be temporarily in the first switching switch and the second switching switch
The power supply that rear side is maintained in handoff procedure, it is achieved that not interrupted to elevator supply.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, the required attached drawing of the present invention is made below simple
It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people
For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is elevator power supply system structural schematic diagram of the invention.
Fig. 2 is the elevator power supply system structural schematic diagram of the prior art.
The reference numerals are as follows in figure:
10 outer 11 first change-over switches of network source
12 rectifier, 13 main capacitance
14 inverter, 15 hoisting motor
20 control 21 Switching Power Supplies of power source bus
22 second change-over switches 23 control transformer
24 rectifier bridge stack, 30 battery
31 power inverter, 40 monitoring unit
Specific embodiment
Below in conjunction with attached drawing, clear, complete description is carried out to the technical solution in the present invention, it is clear that described
Embodiment is a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Elevator power supply system as shown in Figure 1, including it is the first change-over switch (11), rectifier (12), main capacitance (13), inverse
Become device (14), hoisting motor (15), control power source bus (20), Switching Power Supply (21), the second change-over switch (22), battery
(30) and monitoring unit (40).
The electrical source of power that rectifier (12), main capacitance (13), inverter (14), hoisting motor (15) constitute elevator is returned
Road；Electrical source of power circuit can obtain AC 380V three-phase alternating current from three phase lines of electric network source (10), can also be with power grid
AC 220V single-phase alternating current is obtained in a phase line and the neutral conductor on power supply (10).
Control power source bus (20), Switching Power Supply (21) constitutes the control electric power loop of elevator；Switching Power Supply (21) can be with
It is the input of AC 85~265V Width funtion, because its input side has rectification module, 1.414 times of voltages can also be directly inputted
Direct current.Preferably, the quantity of Switching Power Supply (21) is two, it is TDK power supply.Wherein, one is CUT35-522
(35W exports DC ± 12V and 5V)；The other is CUS100MB-48 (100W exports DC 48V).
Battery (30) stores and provides DC power supply；In the present embodiment, battery (30) is 12 section 12V lead-acid accumulators
Tandem compound.
First change-over switch (11) between electric network source (10) and battery (30) for selecting all the way as power electric
The input of resource loop；Second change-over switch (22) between electric network source (10) and battery (30) for selecting all the way as control
The input of electric power loop processed；First change-over switch (11) and the second change-over switch (22) can be the difference of same switch
Contact is also possible to different switches, the even combination of several switches.In the present embodiment, the first change-over switch (11) and
Contactor relay of two change-over switches (22) using the same Mitsubishi, model SRD-T9.First change-over switch (11) is
By connecing three normally-closed contacts of the contactor relay between outer network source (10) and rectifier (12) input side, two
A normally opened contact, which connects, to be realized in two phase line of the positive and negative both ends of battery (30) and rectifier (12) input side.Second change-over switch
(22) be contactor relay other two normally-closed contact and other two normally opened contact, other two is normally closed by therein
Contact connect outer (10) one phase of network source and control power source bus (20) between, other two normally opened contact connect battery (30) just
On negative both ends and control power source bus (20).Monitoring unit (40) is powered to contactor relay coil, controls its contact
Movement, may be implemented the conversion of power supply mode.Since contactor relay SRD-T9 is after coil energization, normally opened contact is moved
It is 55~75ms as the time, the actuation time of normally-closed contact is 50~70ms, so the switching time of entire switch contact will not
More than 100ms.Within this of short duration time, elevator remain to the energy storage by main capacitance (13) and Switching Power Supply (21) itself into
The phenomenon that row power supply is not in power breakdown.The elevator power supply system of the present embodiment passes through the multiplexing to AC DC electric, knot
Structure is simple, high-efficient, and discharges passenger after capable of smoothly stopping when having a power failure.
Monitoring unit (40) is for monitoring electric network source (10) state.In normal power supply, electrical source of power circuit and control
The alternating current that electric power loop uses outer network source (10) to provide.After power failure, monitoring unit (40) controls the first change-over switch
(11) it is opened with the second change-over switch (22) movement, the normally-closed contact of accessing external network power supply (10), access battery (30)
Normally opened contact closure realizes that power supply is changed rapidly by outer network source (10) to battery (30) direct current supply.Electrical source of power is returned
Road, rectifier are made of diode, the direct current of battery (30) directly can be supplied main capacitance (13), then by inverter
(14) alternating current of hoisting motor (15) needs is converted to；For controlling electric power loop, since Switching Power Supply (21) can be simultaneous
The input mode of AC and DC is cared for, so the conversion of electric energy does not influence its normal output.
The above is only preferred embodiment of the present application, it is not used to limit the application.Come for those skilled in the art
It says, various changes and changes are possible in this application.Within the spirit and principles of this application, made any modification, equivalent
Replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of elevator power supply system, including electric network source (10), which is characterized in that further include:
Electrical source of power circuit obtains three-phase alternating current from electric network source (10)；
Electric power loop is controlled, obtains single-phase alternating current from electric network source (10)；
Battery stores and provides DC power supply；
First change-over switch (11) is returned as electrical source of power all the way for selecting between electric network source (10) and battery (30)
The input on road；
Second change-over switch (22) is returned as control power supply all the way for selecting between electric network source (10) and battery (30)
The input on road；
Monitoring unit (40), for monitoring electric network source (10) state, when find have a power failure when control the first change-over switch (11) and
Second change-over switch (22) movement.
2. elevator power supply system according to claim 1, which is characterized in that the rectifier (12), main capacitance (13), inverse
Become device (14) and hoisting motor (15) constitutes the electrical source of power circuit of elevator, the control power source bus (20) and Switching Power Supply
(21) the control electric power loop of elevator is constituted.
3. elevator power supply system according to claim 2, which is characterized in that the normally closed touching of first change-over switch (11)
Point is connected between outer network source (10) and the input side of rectifier (12), and the normally opened contact of first change-over switch (11) connects
It connects on the positive and negative end of battery (30) and two phase line of input side of rectifier (12).
4. elevator power supply system according to claim 3, which is characterized in that the normally closed touching of second change-over switch (22)
Point is connected between outer network source (10) and control power source bus (20), and the normally opened contact of second change-over switch (22) connects
On battery (30) positive and negative both ends and control power source bus (20).
5. elevator power supply system according to claim 4, which is characterized in that first change-over switch and/or described
The quantity of two change-over switches is at least one.
6. elevator power supply system according to claim 4, which is characterized in that first change-over switch (11) and described
Two change-over switches (22) quantity is respectively one and is arranged in the same contactor relay.
7. elevator power supply system according to claim 6, which is characterized in that the contactor relay is at least one
It is a.
8. elevator power supply system according to claim 2, which is characterized in that the Switching Power Supply (21) is that Width funtion is defeated
Enter and can be compatible with AC and DC input, the quantity of the Switching Power Supply (21) is at least one.
9. elevator device according to claim 2, which is characterized in that the battery (30) is more piece lead-acid accumulator
Tandem compound.
10. elevator power supply system described in one of -9 according to claim 1, which is characterized in that the monitoring unit (40)
It is to sample electric network source (10) supply control electric power loop this mutually judges the states of electric network source (10), the monitoring list
First (40) are dynamic to control by opening/disconnecting the power supply to the coil of the first change-over switch (11) and the second change-over switch (22)
Make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037726.2A CN109720949A (en) | 2017-10-30 | 2017-10-30 | Elevator power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037726.2A CN109720949A (en) | 2017-10-30 | 2017-10-30 | Elevator power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109720949A true CN109720949A (en) | 2019-05-07 |
Family
ID=66291490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711037726.2A Pending CN109720949A (en) | 2017-10-30 | 2017-10-30 | Elevator power supply system |
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| Country | Link |
|---|---|
| CN (1) | CN109720949A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067632A (en) * | 1991-06-12 | 1993-01-06 | 三菱电机株式会社 | The blackout running gear of elevator |
| CN1316126A (en) * | 1998-09-02 | 2001-10-03 | 韦特恩斯蒂恩运动控制有限公司 | Emergency operation device for facility with electric motor |
| CN101340106A (en) * | 2007-07-04 | 2009-01-07 | 东芝电梯株式会社 | Power supply system of elevator |
| CN101687605A (en) * | 2007-05-02 | 2010-03-31 | 通力股份公司 | Power supply appliance of a transport system |
| CN102040133A (en) * | 2010-12-30 | 2011-05-04 | 张长安 | Elevator power supply device |
-
2017
- 2017-10-30 CN CN201711037726.2A patent/CN109720949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067632A (en) * | 1991-06-12 | 1993-01-06 | 三菱电机株式会社 | The blackout running gear of elevator |
| CN1316126A (en) * | 1998-09-02 | 2001-10-03 | 韦特恩斯蒂恩运动控制有限公司 | Emergency operation device for facility with electric motor |
| CN101687605A (en) * | 2007-05-02 | 2010-03-31 | 通力股份公司 | Power supply appliance of a transport system |
| CN101340106A (en) * | 2007-07-04 | 2009-01-07 | 东芝电梯株式会社 | Power supply system of elevator |
| CN102040133A (en) * | 2010-12-30 | 2011-05-04 | 张长安 | Elevator power supply device |
Non-Patent Citations (1)
| Title |
|---|
| 晓帆: "《电工实用电路220例》", 31 March 2012 * |
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