CN208571968U - A kind of general frequency control equipment - Google Patents
A kind of general frequency control equipment Download PDFInfo
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- CN208571968U CN208571968U CN201821259717.8U CN201821259717U CN208571968U CN 208571968 U CN208571968 U CN 208571968U CN 201821259717 U CN201821259717 U CN 201821259717U CN 208571968 U CN208571968 U CN 208571968U
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Abstract
The utility model relates to frequency converter protection technique fields, and in particular to general frequency control equipment.By the way of multiple frequency converters arrangement, power supply only is provided for variable-frequency motor by a frequency converter in section at the same time.Including variable-frequency motor, at least two frequency converters, frequency converter selection device, line concentration isolating device and microcontroller；On the one-to-one power output end for being connected to frequency converter selection device of the power input of each frequency converter；On the one-to-one power input for being connected to line concentration isolating device of the power output end of each frequency converter；The power output end of line concentration isolating device is connected on the power input of variable-frequency motor；Temperature testing organization is respectively equipped on each frequency converter；Each temperature testing organization, the control terminal of each frequency converter, the control terminal of variable-frequency motor, the control terminal of the control terminal of frequency converter selection device and line concentration isolating device are connect with microcontroller respectively.
Description
Technical field
The utility model relates to frequency converter protection technique fields, and in particular to a kind of general frequency control equipment.
Background technique
Frequency converter is that the equipment of power supply is provided for variable-frequency motor, during frequency converter provides power supply for variable-frequency motor,
Since each electronic component in frequency converter can generate heat, integrally generate heat so as to cause the frequency converter to work long hours, in turn
So that the heat on each electronic component in frequency converter the more accumulates the more more, the electronic component eventually led in frequency converter is burnt
Bad situation occurs, and influences the service life of frequency converter.
Utility model content
The utility model is to solve to provide after existing frequency converter works long hours because of its deficiency being easily burned of generating heat
A method of it is arranged using multiple frequency converters, in section at the same time, is only provided by a frequency converter for variable-frequency motor
Power supply, and automatically selecting another frequency converter after the temperature on this frequency converter for providing power supply is greater than set temperature is frequency conversion
Motor power supply, flexibility is good, a kind of general frequency control equipment of high reliablity.
The above technical problem is solved through the following technical scheme:
A kind of general frequency control equipment, including variable-frequency motor, at least two frequency converters, frequency converter selection device, line concentration
Isolating device and microcontroller；The power output end equal with frequency converter number is equipped on frequency converter selection device；In line concentration
Isolating device is equipped with the power input equal with frequency converter number；The power input of each frequency converter is one-to-one to be connected to
On the power output end of frequency converter selection device；The power output end of each frequency converter is one-to-one to be connected to line concentration isolating device
On power input；The power output end of line concentration isolating device is connected on the power input of variable-frequency motor；In each frequency conversion
Temperature testing organization is respectively equipped on device；The control of each temperature testing organization, the control terminal of each frequency converter, variable-frequency motor
The control terminal at end, the control terminal of frequency converter selection device and line concentration isolating device is connect with microcontroller respectively.
Suitable for a kind of operating method of general frequency control equipment, only by a frequency converter in section at the same time
Power supply is provided for variable-frequency motor；During variable-frequency motor work, the temperature of temperature testing organization real-time detection frequency converter；When one
After temperature on frequency converter is higher than set temperature, do not have temperature is minimum in the frequency converter of work one currently by micro-controller instructions
Frequency converter is variable-frequency motor power supply, and powers on the moment to variable-frequency motor offer power supply in this minimum frequency converter of Current Temperatures
While disconnect and current provide that of power supply to variable-frequency motor and be between the frequency converter and variable-frequency motor of the condition of high temperature
Circuit connection；And so on, to guarantee that the temperature on frequency converter will not rise so high and the case where burning out frequency converter occurs.
This programme is by the way of multiple frequency converters arrangement, is only to become by a frequency converter in section at the same time
Frequency motor provides power supply, and automatically selects another change after the temperature on this frequency converter for providing power supply is greater than set temperature
Frequency device is variable-frequency motor power supply, and flexibility is good, high reliablity.
Preferably, frequency converter selection device includes the preposition relay equal with frequency converter number, each preposition relay
The control terminal of device is connect with microcontroller respectively；One end of each preposition relay is one-to-one to be connected to frequency converter selection device
On power output end, the other end of each preposition relay is connected on the power input of frequency converter selection device.
Preposition relay is used to select specific frequency converter for variable-frequency motor power supply, flexibility is good.
Preferably, line concentration isolating device includes the postposition relay equal with frequency converter number, each postposition relay
Control terminal connect respectively with microcontroller；The one-to-one power supply for being connected to line concentration isolating device in one end of each postposition relay
On input terminal, the other end of each postposition relay is connected on the power input of variable-frequency motor.
Use the cooperation of preposition relay and postposition relay to select specific frequency converter for variable-frequency motor power supply, flexibly
Property is good.
The utility model can reach following effect:
The utility model structure is simple, by the way of multiple frequency converters arrangement, in section at the same time, only by one
A frequency converter provides power supply for variable-frequency motor, and automatic after the temperature on this frequency converter for providing power supply is greater than set temperature
Select another frequency converter for variable-frequency motor power supply, flexibility is good, high safety and reliability.
Detailed description of the invention
Fig. 1 is a kind of attachment structure schematic diagram of the utility model embodiment.
Fig. 2 is a kind of attachment structure schematic diagram at the utility model embodiment collection wind bottle.
Fig. 3 is a kind of circuit theory connection structure schematic block diagram of the utility model embodiment.
Fig. 4 is a kind of attachment structure schematic diagram at the utility model embodiment temperature testing organization.
Specific embodiment
The utility model is further described with embodiment with reference to the accompanying drawing.
Embodiment, a kind of general frequency control equipment, referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, including variable-frequency motor 31, extremely
Few two frequency converters, frequency converter selection device 9, line concentration isolating device 23 and microcontroller 1；It is equipped on frequency converter selection device
Power output end 14, power output end 15 and the power output end 16 equal with frequency converter number；It is set in line concentration isolating device
There are the power input 24 equal with frequency converter number, power input 25 and power input 26；The power supply of each frequency converter
On the one-to-one power output end for being connected to frequency converter selection device of input terminal；The one-to-one company of the power output end of each frequency converter
It connects on the power input of line concentration isolating device；The power output end 30 of line concentration isolating device is connected to the power supply of variable-frequency motor
On input terminal；Temperature testing organization 20, temperature testing organization 21 and temperature testing organization 22 are respectively equipped on each frequency converter；
Each temperature testing organization, the control terminal of each frequency converter, the control terminal of variable-frequency motor, the control terminal of frequency converter selection device and
The control terminal of line concentration isolating device is connect with microcontroller respectively.The power input 10 of frequency converter selection device is connected to power frequency
On power supply 8.
There are three the frequency converters of the present embodiment, is frequency converter 17, frequency converter 18 and frequency converter 19 respectively.The present embodiment uses
Using the microcontroller of STM32 model, concrete model is the microcontroller of this model of STM32F103RBT6.
Frequency converter selection device include the preposition relay 11 equal with frequency converter number, preposition relay 12 and it is preposition after
The control terminal of electric appliance 13, each preposition relay is connect with microcontroller respectively；The one-to-one company in one end of each preposition relay
It connects on the power output end of frequency converter selection device, the other end of each preposition relay is connected to frequency converter selection device
On power input 10.
Line concentration isolating device includes the postposition relay 27 equal with frequency converter number, postposition relay 28 and postposition relay
The control terminal of device 29, each postposition relay is connect with microcontroller respectively；The one-to-one connection in one end of each postposition relay
On the power input of line concentration isolating device, the other end of each postposition relay is connected to the power input of variable-frequency motor
On.
One preposition relay and postposition relay form a relay with response group pair, thus obtain with it is preposition
The equal relay of relay number is the same as response group pair；The same relay will be located at the internal preposition relay of response group
It is connected on microcontroller after piece conducting wire conducting connection of control terminal and the control terminal of postposition relay, and each preposition
The control terminal of relay is connected on the distinct interface of microcontroller.
The interface of microcontroller 1 includes interface 2, interface 3, interface 4, interface 5, interface 6 and interface 7 in the present embodiment Fig. 1.
The control terminal of preposition relay 11 and the control terminal of postposition relay 27 are connected to together on the interface 3 of microcontroller 1.It is preposition after
The control terminal of electric appliance 12 and the control terminal of postposition relay 28 are connected to together on the interface 5 of microcontroller 1.Preposition relay 13
Control terminal and the control terminal of postposition relay 29 be connected on the interface 4 of microcontroller 1 together.
Voltage zero-cross detection device, voltage zero-cross detection device and micro-control are equipped on the power output end of each frequency converter
Device connection processed.
Voltage zero-cross detection device 32, the power output end of frequency converter 18 are provided that on the power output end of frequency converter 17
On be provided that voltage zero-cross detection device 33, voltage zero-cross detection device is provided that on the power output end of frequency converter 19
34。
General frequency control equipment further includes bracket 57；Temperature testing organization includes the internal vertical block for being equipped with vertical sliding chamber
56, it slides up and down and sliding intracavitary upright slide block 46 vertically, squeezing setting in upright slide block upper surface and erect for vertical block is set
Directly slide extruding spring 45, temperature-sensitive telescopic block and the distance measuring sensor between intracavitary top surface；On the lower surface of vertical block be equipped with
The lumen pore that the vertical sliding chamber of vertical block is connected, is equipped with shelves item 49 in lumen pore, and the upper surface of shelves item is arranged in distance measuring sensor
On；Frequency converter is fixed on bracket, and the lower surface of temperature-sensitive telescopic block is fixedly connected on frequency converter；The upper surface of upright slide block is solid
Surely it is connected on bracket, and upright slide block is located at the surface of temperature-sensitive telescopic block.
There are three temperature testing organization in the present embodiment is total to, the structure of three temperature testing organizations all is all identical.
Temperature testing organization 20 corresponds to frequency converter 17, upright slide block 46, temperature-sensitive telescopic block 51 and distance measuring sensor 50.
Temperature testing organization 21 corresponds to frequency converter 18, upright slide block 47, temperature-sensitive telescopic block 53 and distance measuring sensor 52.
Temperature testing organization 22 corresponds to frequency converter 19, upright slide block 48, temperature-sensitive telescopic block 55 and distance measuring sensor 54.
Temperature testing organization 20 is connected on the interface 2 of microcontroller 1.Temperature testing organization 21 is connected to microcontroller 1
Interface 7 on.Temperature testing organization 22 is connected on the interface 6 of microcontroller 1.
General frequency control equipment further includes 42 sum aggregate wind bottle 35 of hair dryer；Distinguish on the cooling fin of each frequency converter
It is thermally conductive to be connected with heat-exchange tube；The air outlet 43 of hair dryer is connected on the bottleneck 44 of collection wind bottle, is equipped on collection wind bottle
The bottle exhaust vent equal with heat-exchange tube radical, one-to-one be connected of the air intake of every heat-exchange tube go out in the bottle for collecting wind bottle
In air holes；The control terminal of hair dryer is connect with microcontroller.
Corresponding frequency converter 17 is heat-exchange tube 36.Corresponding frequency converter 18 is heat-exchange tube 37.Frequency converter 19 is corresponding
It is heat-exchange tube 38.
The solenoid valve connecting with microcontroller is respectively equipped on every heat-exchange tube.Corresponding heat-exchange tube 36 is electromagnetism
Valve 39.Corresponding heat-exchange tube 37 is solenoid valve 40.Corresponding heat-exchange tube 38 is solenoid valve 41.
Preposition relay is used to select specific frequency converter for variable-frequency motor power supply, flexibility is good.
Use the cooperation of preposition relay and postposition relay to select specific frequency converter for variable-frequency motor power supply, flexibly
Property is good.
One preposition relay and a postposition relay cooperate to select frequency converter for variable-frequency motor power supply in pairs, so that
Other frequency converter does not have electrification when one frequency converter work, and safety is good, high reliablity, and flexibility is good.
Preposition relay and postposition relay can be allowed to be in when being opened or closed using voltage zero-cross detection device
Low-voltage state greatly prolongs preposition relay and postposition so that preposition relay and postposition relay are not easy to be burned
The service life of relay.
Each distance measuring sensor uploads distance measuring signal to microcontroller in real time.Temperature-sensitive telescopic block is heated to be extended upwards.
After the temperature on some frequency converter is greater than set temperature, the temperature-sensitive telescopic block being arranged on the frequency converter is heated to stretch upwards
It is long.When corresponding distance measuring sensor detects that the temperature-sensitive telescopic block drives corresponding upright slide block to be moved upwards up to setting height
Afterwards, which uploads distance measuring signal to microcontroller immediately, and microcontroller allows corresponding frequency converter to stop working immediately,
Frequency converter work corresponding to microcontroller and the lesser distance measuring sensor of distance for allowing current distance measuring sensor to detect simultaneously.
This ensures that the temperature when work of each frequency converter does not exceed set temperature, so that frequency converter is not easy to be burnt
It is bad, high safety and reliability.
Corresponding frequency converter blowing is thought by the cooperation of hair dryer sum aggregate wind bottle, allows the frequency converter of heat to cool down, high reliablity.
Hair dryer can be flexibly controlled by solenoid valve to dry to that frequency converter, improve quenching effect, structure letter
Single high reliablity.
Suitable for the operating method of general frequency control equipment, in section at the same time only by a frequency converter be become
Frequency motor provides power supply；During variable-frequency motor work, the temperature of temperature testing organization real-time detection frequency converter；When a frequency conversion
After temperature on device is higher than set temperature, do not have the frequency conversion that temperature is minimum in the frequency converter of work currently by micro-controller instructions
Device is variable-frequency motor power supply, and powers on the same of moment to variable-frequency motor offer power supply in this minimum frequency converter of Current Temperatures
When disconnect and current provide that of power supply to variable-frequency motor and be in the electricity between the frequency converter and variable-frequency motor of the condition of high temperature
Road line；And so on, to guarantee that the temperature on frequency converter will not rise so high and the case where burning out frequency converter occurs.
The present embodiment is by the way of multiple frequency converters arrangement, in section at the same time, is only by a frequency converter
Variable-frequency motor provides power supply, and automatically selects another after the temperature on this frequency converter for providing power supply is greater than set temperature
Frequency converter is variable-frequency motor power supply, and flexibility is good, high reliablity.
The embodiments of the present invention have been described above with reference to the accompanying drawings, and however, the implementation is not limited to the above embodiments, this
Field those of ordinary skill can be with various changes and modifications may be made within the scope of the appended claims.
Claims (1)
1. a kind of general frequency control equipment, including variable-frequency motor, which is characterized in that further include at least two frequency converters, frequency conversion
Device selection device, line concentration isolating device and microcontroller；The electricity equal with frequency converter number is equipped on frequency converter selection device
Source output terminal；The power input equal with frequency converter number is equipped in line concentration isolating device；The power supply of each frequency converter is defeated
Enter to hold on the one-to-one power output end for being connected to frequency converter selection device；The one-to-one connection of the power output end of each frequency converter
On the power input of line concentration isolating device；The power output end of line concentration isolating device is connected to the power input of variable-frequency motor
On end；Temperature testing organization is respectively equipped on each frequency converter；Each temperature testing organization, each frequency converter control terminal,
The control terminal of the control terminal of variable-frequency motor, the control terminal of frequency converter selection device and line concentration isolating device connects with microcontroller respectively
It connects；
Frequency converter selection device includes the preposition relay equal with frequency converter number, the control terminal difference of each preposition relay
It is connect with microcontroller；On the one-to-one power output end for being connected to frequency converter selection device in one end of each preposition relay,
The other end of each preposition relay is connected on the power input of frequency converter selection device；
Line concentration isolating device includes the postposition relay equal with frequency converter number, the control terminal of each postposition relay respectively with
Microcontroller connection；On the one-to-one power input for being connected to line concentration isolating device in one end of each postposition relay, each
The other end of postposition relay is connected on the power input of variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821259717.8U CN208571968U (en) | 2018-08-06 | 2018-08-06 | A kind of general frequency control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821259717.8U CN208571968U (en) | 2018-08-06 | 2018-08-06 | A kind of general frequency control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208571968U true CN208571968U (en) | 2019-03-01 |
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ID=65449669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821259717.8U Active CN208571968U (en) | 2018-08-06 | 2018-08-06 | A kind of general frequency control equipment |
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| Country | Link |
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| CN (1) | CN208571968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088576A (en) * | 2018-08-06 | 2018-12-25 | 浙江冠南能源科技有限公司 | General frequency control equipment and its operating method |
-
2018
- 2018-08-06 CN CN201821259717.8U patent/CN208571968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088576A (en) * | 2018-08-06 | 2018-12-25 | 浙江冠南能源科技有限公司 | General frequency control equipment and its operating method |
| CN109088576B (en) * | 2018-08-06 | 2024-01-30 | 浙江冠南能源科技有限公司 | Universal variable frequency speed regulating equipment and operation method thereof |
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