Utility model content
The purpose of the embodiment of the present application is to provide a kind of elevator internal contracting brake power supply, to prevent voltage or the excessive damage of electric current from embracing
Lock power supply or load improve the safety and reliability of elevator internal contracting brake power supply.
The embodiment of the present application provides what a kind of elevator internal contracting brake power supply was realized in:
A kind of elevator internal contracting brake power supply, the power supply include:
Rectification filtering module is electrically connected with power input, and half-wave is obtained for carrying out full-wave rectification to input voltage
Voltage;
Voltage transformation module is electrically connected with the rectification filtering module, for the half-wave voltage passed through transformation to be divided into
Excitation voltage and maintenance voltage, the excitation voltage and the maintenance voltage are used as output voltage;
Output module is electrically connected with the voltage transformation module, for exporting excitation voltage to brake, the output
Module further includes delay output module, for after the excitation voltage that the output module exports preset time, output to maintain electricity
It is depressed into the brake;
Comparator unit is electrically connected with the output module, for comparing the output voltage with reference voltage
Compared with, and output voltage comparison result, it is additionally operable to output current being compared with reference current, and output current comparison result;
Photoelectric isolation module is electrically connected with the output end of the comparator unit, for comparing knot according to the voltage
Fruit or/and electric current comparison result control being turned on or off of being electrically connected between the output module and the brake.
In preferred embodiment, when the voltage comparison result that the photoelectric isolation module receives is that the output voltage is more than
When the reference voltage, the electric connection controlled between the output module and the brake disconnects.
In preferred embodiment, when the electric current comparison result that the photoelectric isolation module receives is that the output current is more than
When the reference current, the electric connection controlled between the output module and the brake disconnects.
In preferred embodiment, when the voltage comparison result that the photoelectric isolation module receives is that the output voltage is less than
Or it is equal to the reference voltage, and when the electric current comparison result is that output current is less than or equal to reference current, described in control
Electric connection between output module and the brake is held on.
In preferred embodiment, the comparator unit includes:Voltage comparison module, current comparing module, are respectively used to pair
The output voltage and the output current are compared;
The output end of the voltage comparison module and the output end of the current comparing module are connected to logical AND gate
Two input terminals, the output end of the output end of the logical AND gate as the comparator unit,
The output end of the comparator unit and the photoelectric isolation module are electrically connected, the photoelectric isolation module according to
The electric signal of the output end output of the comparator unit, controls and is electrically connected between the output module and the brake
It disconnects or is connected.
In preferred embodiment, the voltage comparison module includes voltage comparator, the reference voltage of the voltage comparator
End is electrically connected with the output module, is used for input and output voltage, the reference voltage end of the voltage comparator is for inputting
Reference voltage.
In preferred embodiment, the current comparing module includes current comparator, the reference current of the current comparator
End is electrically connected with the output module, is used for input and output electric current, the reference current end of the current comparator is for inputting
Reference current.
In preferred embodiment, it is less than or equal to when the output voltage is less than or equal to reference voltage and the output current
When reference current, the voltage comparator exports high level, and the current comparator exports high level, after logical AND gate,
The output end of the comparator unit exports high level, and the photoelectric isolation module controls institute when receiving the high level
The electric connection stated between output module and the brake is connected.
In preferred embodiment, when the output voltage is more than reference voltage, the voltage comparator exports low level, warp
After crossing logical AND gate, the output end of the comparator unit exports low level, the photoelectric isolation module receive it is described low
When level, the electric connection controlled between the output module and the brake disconnects.
In preferred embodiment, when the output current is more than reference current, the current comparator exports low level, warp
After crossing logical AND gate, the output end of the comparator unit exports low level, the photoelectric isolation module receive it is described low
When level, the electric connection controlled between the output module and the brake disconnects.
Using a kind of elevator internal contracting brake power supply provided by the embodiments of the present application, the inside electricity to elevator internal contracting brake power supply can be passed through
Road is improved, and can effectively monitor the fault signatures such as overcurrent or overvoltage, and disconnects the loads such as band-type brake power supply and brake
It being electrically connected, the loads such as effective protection band-type brake power supply and brake effectively improve the safety and reliability of elevator internal contracting brake power supply,
And then effectively improve the safety and reliability of elevator.
Specific implementation mode
The embodiment of the present application provides a kind of modular structure schematic diagram of elevator internal contracting brake power supply.
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without creative efforts should all belong to the application protection
Range.
Fig. 1 is a kind of a kind of herein described modular structure schematic diagram of embodiment of elevator internal contracting brake power supply.Although the application
Provide such as following embodiments or apparatus structure shown in the drawings, but based on it is conventional or without performing creative labour in the dress
It may include more or less modular unit in setting.It is not present in logicality in necessary causal structure, these
The modular structure of device is not limited to the embodiment of the present application or modular structure shown in the drawings.
Specifically, as described in Figure 1, a kind of a kind of embodiment of elevator internal contracting brake power supply provided by the present application may include:
Rectification filtering module 101 is electrically connected with power input, and half is obtained for carrying out full-wave rectification to input voltage
Wave voltage;
Voltage transformation module 102 is electrically connected with the rectification filtering module 101, for becoming the half-wave voltage passed through
It changes and is divided into excitation voltage and maintenance voltage, the excitation voltage and the maintenance voltage are used as output voltage;
Output module 103 is electrically connected with the voltage transformation module 102, for exporting excitation voltage to brake, institute
It further includes delay output module 1031, the excitation voltage for exporting preset time in the output module 103 to state output module
Afterwards, maintenance voltage is exported to the brake;
Comparator unit 104 is electrically connected with the output module 103, is used for the output voltage and reference voltage
It is compared, and output voltage comparison result, is additionally operable to output current being compared with reference current, and output current compares
As a result;
Photoelectric isolation module 105 is electrically connected with the output end of the comparator unit 104, for according to the voltage
Comparison result or/and electric current comparison result, control the conducting being electrically connected between the output module 103 and the brake or
It disconnects.
In this example, when the voltage comparison result that the photoelectric isolation module 105 receives is more than institute for the output voltage
When stating reference voltage, the electric connection controlled between the output module 103 and the brake disconnects.
In this example, when the electric current comparison result that the photoelectric isolation module 105 receives is more than institute for the output current
When stating reference current, the electric connection controlled between the output module 103 and the brake disconnects.
In this example, when the voltage comparison result that the photoelectric isolation module 105 receives be the output voltage be less than or
Equal to the reference voltage, and when the electric current comparison result is that output current is less than or equal to reference current, control is described defeated
The electric connection gone out between module 103 and the brake is held on.
Comparison result in above-described embodiment is mainly obtained by comparing the logical operation of device unit.Fig. 2 is the application one
The electrical block diagram of comparator unit described in a embodiment, specifically, as shown in Fig. 2, the comparator unit 104
May include:
Voltage comparison module 1041, current comparing module 1042 are respectively used to the output voltage and output electricity
Stream is compared;
The output end 1 of the voltage comparison module 1041 and the output end 14 of the current comparing module 1042 are separately connected
In two input terminals 10 and 11 of logical AND gate, the output of the output end 13 of the logical AND gate as the comparator unit
End,
The output end of the comparator unit 104 is electrically connected with the photoelectric isolation module 105, the Phototube Coupling mould
The electric signal that block 105 is exported according to the output end of the comparator unit 104, controls the output module 103 and the braking
The disconnection or conducting being electrically connected between device.
As shown in Fig. 2, in this example, the voltage comparison module 1041 includes voltage comparator, the voltage comparator
Reference voltage end 6 is electrically connected with the output module 103, is used for input and output voltage, the reference electricity of the voltage comparator
Press 7 ends for input reference voltage.
As shown in Fig. 2, the reference voltage end 6 is by being connected to the B+ of the output module 103 after multiple divider resistances
End.
Corresponding, as shown in Fig. 2, in this example, the current comparing module 1042 includes current comparator, the electric current ratio
Reference current end 8 compared with device is electrically connected with the output module 103, is used for input and output electric current, the current comparator
Reference current end 9 is for inputting reference current.
As shown in Fig. 2, the reference current end 8 is by being connected to the B- of the output module 103 after multiple divider resistances
End.
In this example, LM339D models comparator may be used as voltage comparator or current comparator.
In this example, as shown in Fig. 2, the voltage signal at the output end 3 and A of the logical AND gate passes through second logical AND
Export C signal behind the door, the output end of the output end 16 of the C signal as comparator unit 104.In the application other embodiment
In, output end that can also directly by the output end of logical AND gate 13 as comparator unit 104, as long as voltage ratio may be implemented
Compared with the logic of the "AND" of the output end 14 of the output end 1 and current comparing module 1042 of module 1041.
The working method of the band-type brake power supply to being provided with comparator unit described in above-described embodiment combines specific event below
Barrier situation illustrates:
In this example, when the output voltage is less than or equal to reference voltage and the output current is less than or equal to reference to electricity
When stream, the voltage comparator 1041 exports high level, and the current comparator 1042 exports high level, by logical AND gate
Afterwards, the output end of the comparator unit 104 exports high level, and the photoelectric isolation module 105 is receiving the high level
When, the electric connection controlled between the output module 103 and the brake is connected.
When the output voltage is more than reference voltage, the voltage comparator 1041 exports low level, by logical AND
Behind the door, the output end of the comparator unit 104 exports low level, and the photoelectric isolation module 105 is receiving the low electricity
Usually, the electric connection controlled between the output module 103 and the brake disconnects.
When the output current is more than reference current, the current comparator 1042 exports low level, by logical AND
Behind the door, the output end of the comparator unit 104 exports low level, and the photoelectric isolation module 105 is receiving the low electricity
Usually, the electric connection controlled between the output module 103 and the brake disconnects.
It, can be real by comparing device unit using a kind of embodiment for elevator internal contracting brake power supply that the various embodiments described above provide
When monitoring output voltage and output current whether overload, once output voltage or output current are overloaded, so that it may to pass through
Phototube coupling unit cuts off the electric connection between the output module and the brake in time, can timely and effectively avoid
Band-type brake power supply or brake are burned.In troubleshooting or there is no when failure, the photoelectric isolation module control is described defeated
The electric connection gone out between module and brake is connected, and makes the band-type brake power supply and the brake normal operation.It can be effective
The safety and reliability of elevator internal contracting brake system is improved, and then can effectively improve safety and the validity of elevator.
Device that above-described embodiment illustrates or module etc. can specifically realize by computer chip or entity, or by having
There is the product of certain function to realize.For convenience of description, it is divided into various modules when description apparatus above with function to retouch respectively
It states.Certainly, the function of each module is realized can in the same or multiple software and or hardware when implementing the application,
The module for realizing same function can be realized by the combination of multiple submodule etc..Device embodiment described above is only
Schematically, for example, the division of the module, only a kind of division of logic function, can there is other draw in actual implementation
The mode of dividing, such as multiple module or components can be combined or can be integrated into another system, or some features can be ignored,
Or it does not execute.
Each embodiment in this specification is described by the way of progressive, same or analogous portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's
Spirit.