CN206805318U - Temperature control system in frequency conversion tank - Google Patents
Temperature control system in frequency conversion tank Download PDFInfo
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- CN206805318U CN206805318U CN201720481146.1U CN201720481146U CN206805318U CN 206805318 U CN206805318 U CN 206805318U CN 201720481146 U CN201720481146 U CN 201720481146U CN 206805318 U CN206805318 U CN 206805318U
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- frequency conversion
- conversion tank
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000011664 signaling Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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Abstract
The utility model discloses temperature control system in a kind of frequency conversion tank, it includes rack (1), and it is arranged at rack (1) internal control unit (2), detection unit (3), execution unit (4) and communication unit (5), the detection unit (3), execution unit (4) and communication unit (5) are all connected to control unit (2), it is characterised in that：Detection unit (3) the acquisition system status information, and the information of collection is sent to control unit；Described control unit (2) reception system status information, and execution unit (4) action is controlled according to system status information；The execution unit (4) includes stepper motor, radiator fan, heater.The utility model realizes low-temperature heat and the automatic switchover of high temperature heat sinking function according to environment temperature, frequency converter is set to be operated within the scope of reasonable temperature, extend the service life of frequency converter and reduce the fault rate of frequency converter, further increase the adaptive capacity to environment of equipment.
Description
Technical field
Technical field of temperature control is the utility model is related to, particularly relates to temperature control system in a kind of frequency conversion tank.
Background technology
The ambient operating temperatures of usual frequency converter are generally -10 DEG C~+40 DEG C.It is too high or too low for temperature all can be to frequency converter
Normal operation produce certain influence.
Equipment long-time hot operation, the fault rate of frequency converter will be greatly increased, and frequency converter is lost based on main circuit,
98% is accounted for, control circuit accounts for 2%.Electronics, electrical equipment especially large scale integrated circuit inside frequency converter, its heating are asked
Topic is always insoluble technical barrier in field.The rise of electronic equipment temperature causes its internal microelectronic element such as PN
Section temperature drift it is serious and form voltage, current parameters change, and then cause misprogramming and failure or even fail.In frequency conversion tank electrically
System, secondary coil and relay system etc. occur superheating phenomenon, easily cause one-time contact because of high temperature local melting, make contact
Face out-of-flatness and strike sparks, cause short circuit accident.Abnormal heating problem once occurs necessarily to have a strong impact on production or even brought huge
Economic loss.In order to ensure frequency converter normal operation, integrated heat dissipation fan generally is added in its inner fin part, with
Solves frequency converter heat dissipation problem.
And equipment cold operation is directed to, two kinds of low temperature limit temperature of general provision are respectively in the technical parameter of frequency converter
Storage temperature and running temperature.The low temperature limit of running temperature is typically at -10 ° -0 °.Frequency converter passes through installed in power component
Temperature detecting unit is alarmed by running temperature and troubleshooting.In north of china in winter outdoor temperature than relatively low, running temperature is low
Happen occasionally in the situation of low temperature limit, particularly when frequency converter firm startup optimization, usually occur because temperature is too low,
And the situation generation for causing frequency converter normally to start, and even if achievement is started can also shadow be produced to the service life of frequency converter
Ring.
In summary, in design and use frequency converter, it is necessary to take into full account its specific works environment, it is ensured that its work temperature
Degree is in normal range (NR).Therefore, need badly and develop in a kind of frequency conversion tank of stable performance temperature control system to meet frequency converter
Normal use demand.
The content of the invention
In view of insufficient existing for prior art, the purpose of this utility model is to provide for one kind can be real according to environment temperature
Existing low-temperature heat and high temperature heat sinking function automatically switch, and ensure the temperature control system that frequency converter is operated within the scope of reasonable temperature
System.
To achieve these goals, technical solution of the present invention is as follows：
Temperature control system in a kind of frequency conversion tank, it includes rack, and is arranged at the control unit of interior of equipment cabinet, detection
Unit, execution unit and communication unit, the detection unit, execution unit and communication unit are all connected to control unit, and it is special
Sign is：
The detection unit acquisition system status information, and the information of collection is sent to control unit, the system shape
State information comprises at least in-cabinet temperature information, heatsink temperature information, frequency converter work state information, frequency conversion tank mode of operation letter
Breath and radiating blinds action status information；
Described control unit reception system status information, and execution unit action is controlled according to system status information；
The execution unit includes stepper motor, radiator fan, heater and stepper motor, radiator fan, heater
Each self-corresponding control circuit, each control circuit are all connected to the output interface of described control unit.
Further, the detection unit includes temperature collection circuit, frequency converter working condition and frequency conversion tank mode of operation
Detect circuit, radiating blinds state detection circuit.
Further, described control unit includes A/D modular converters, scale conversion module and the single-chip microcomputer being sequentially connected
Module, the system status information that the detection unit is sent is after A/D modular converters and scale conversion resume module, as input
Data analyze and process for one-chip computer module.
Further, the system also includes power supply unit, it include all the way 12VDC power supplys, all the way 5VDC power supplys and
Benchmark direct current 5V power supplys all the way, to meet system each unit power demand.
Further, the communication unit uses RS485 communicating circuits.
Further, described control unit is additionally provided with parameter setting interface, and it is connected with button display module, to set
Low temperature threshold and high temperature threshold value parameter.
Compared with prior art, beneficial effects of the present invention：
1st, the utility model can realize system in low-temperature heat function between high temperature heat sinking function according to in-cabinet temperature
Free switching, heating and radiating are automatically controlled, in-cabinet temperature is maintained in the claimed range of frequency converter operation, extend frequency conversion
The service life of device and the fault rate for reducing frequency converter, and then reduce cost of equipment maintenance and improve equipment operating efficiency；
2nd, the utility model significantly improves the adaptive capacity to environment of equipment, and ensureing can in unconventional environment down coversion cabinet
Normal operation works.
3rd, the utility model opens the blinds of closure ventilating opening using stepping electrical equipment control, has good dust-proof, rain-proof
Effect, the degree of protection of cabinet is improved, extend the service life of system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the utility model functional block diagram；
Fig. 2 is the utility model A/D modular converter circuit connection diagrams；
Fig. 3 is that the utility model digital quantity detects circuit connection diagram；
Fig. 4 is the utility model one-chip computer module chip connection figures；
Fig. 5 is the utility model stepper motor driving circuit connection figure；
Fig. 6 is the utility model fan drive circuit connection figure；
Fig. 7 is the utility model power supply unit circuit connection diagram.
In figure：1st, cabinet, 2, control unit, 3, detection unit, 4, execution unit, 5, communication unit.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme is clearly and completely described, it is clear that described embodiment is that a part of the invention is real
Apply example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
The ambient operating temperatures of usual frequency converter typically require -10 DEG C~+40 DEG C.Too high or too low environment temperature, all
Certain influence can be produced to the normal operation of frequency converter.Vast northern area climate characteristic is notable, and summer temp is high, frequency conversion tank
Interior electrical system heating easily causes in-cabinet temperature too high；And winter temperature is extremely low, being easily caused frequency converter can not normally start.
Based on above-mentioned design background, the utility model devises temperature control system in a kind of frequency conversion tank, with reference to attached
Figure and specific embodiment further illustrate technical scheme：
As shown in figure 1, temperature control system in a kind of frequency conversion tank, it includes rack (1), and is arranged in rack (1)
Control unit (2), detection unit (3), execution unit (4) and the communication unit (5) in portion, the detection unit (3), execution unit
(4) and communication unit (5) is all connected to control unit (2).
Wherein, detection unit (3) acquisition system status information, and the information of collection is sent to control unit (2), it is wrapped
Include temperature collection circuit, frequency converter working condition and frequency conversion tank mode of operation detection circuit, radiating blinds state detection circuit.And
Foregoing circuit module correspondingly gathers in-cabinet temperature information, heatsink temperature information, frequency converter work state information, frequency conversion tank work
Pattern information and radiating blinds action status information.
Control unit (2) reception system status information, and execution unit (4) action is controlled according to system status information.Control
Unit (2) processed includes A/D modular converters, scale conversion module and the one-chip computer module being sequentially connected, the detection unit (3)
The system status information of transmission supplies one-chip computer module after A/D modular converters and scale conversion resume module, as input data
Analyzing and processing.Meanwhile control unit (2) has been additionally provided with parameter setting interface, it is connected with button display module, low to set
Warm threshold value and high temperature threshold value parameter.
Fig. 2 show A/D modular converter circuit connection diagrams, and as seen from the figure, A/D modular converters include two-way conversion electricity
Road, wherein being connected all the way with collection in-cabinet temperature Acquisition Circuit, the in-cabinet temperature Acquisition Circuit uses output quantity as 4-20MA's
Temperature transmitter, analog output is converted into by corresponding digital quantity by A/D change-over circuits；Another way and frequency converter analog quantity
Output interface is connected, and by the temperature of frequency converter fin, corresponding digital quantity is converted into by scale conversion.
Fig. 3 show radiating blinds state detection circuit and frequency converter working condition and frequency conversion tank mode of operation detection circuit
Connection diagram.As seen from the figure, the blinds state detection circuit that radiates can open the radiating blinds at left and right sides of casing and closure
Position signalling, directly collected as digital quantity in one-chip computer module, and when single-chip microcomputer issue open command when, radiate blinds
State detection circuit gathers position signalling, when detecting the position signalling that radiating blinds is opened, stops the operating of stepper motor；
When single-chip microcomputer issues close command, radiating blinds state detection circuit collection position signalling, when detecting radiating blinds closure
Position signalling when, stop the operating of stepper motor.Frequency converter working condition and frequency conversion tank mode of operation detection circuit can be by casees
The operation of the power electronic equipments such as the frequency converter installed in vivo and stopped status signal, and device interior fan operation and shutdown
Status signal, collect in single-chip microcomputer, to judge whether start and stop in-cabinet temperature automatic control system.
It is illustrated in figure 4 one-chip computer module chip connection signal mode, it is preferred to use ATMEGA single-chip microcomputers are as whole system
The working centre of system, embedded program is worked out, reaches the functional requirement of system.
Execution unit (4) is each including stepper motor, radiator fan, heater and stepper motor, radiator fan, heater
Self-corresponding control circuit, each control circuit are all connected to the output interface of described control unit (2).
Fig. 5 show stepper motor driving circuit connected mode, and one-chip computer module drives step by controlling drive circuit
Stepper motor, further control unlatching and the closure of casing radiating blinds.
Fan drive circuit connected mode is illustrated in figure 6, one-chip computer module is according to environment in frequency converter fin and cabinet
Temperature, and high/low temperature threshold temperature set in advance, automatically control the cooling fan and electric heater unit of cabinet, make cabinet
Interior environment temperature meets the requirement of equipment operation.When in-cabinet temperature is too high needs to start blower fan, pass through stepper motor first
The ventilation and heat mouth blinds of casing is opened, restarts blower fan, when temperature reaches zone of reasonableness and stops blower fan, first stops wind
Machine, then the ventilation and heat mouth blinds by stepper motor closing casing.When in-cabinet temperature is less than low temperature threshold, single-chip microcomputer control
Electric heater unit in cabinet, the environment temperature in cabinet is set to meet the requirement of equipment operation.
It is illustrated in figure 7 power supply unit circuit connecting mode.Power supply unit includes 12VDC power supplys, all the way 5VDC electricity all the way
Source and all the way benchmark direct current 5V power supplys, to meet system each unit power demand.
In addition, system also includes communication unit (5), it uses RS485 communicating circuits, and reserved communication interface is to realize
System extension.
The utility model when in use, by the temperature collection circuit of detection unit, gathers environment temperature and frequency conversion in cabinet
Device heatsink temperature, said temperature information is changed into the temperature value into actual with scale conversion by A/D, as control process
Key data is sent to single-chip microcomputer.- 10 ° and+40 ° of the Limit temperature value that system is run previously according to frequency converter, sets frequency converter
The low temperature threshold and high temperature threshold value of cabinet interior environment temperature.When environment temperature is less than low temperature threshold, single-chip microcomputer by control after
Electrical equipment starts heater, until when temperature is heated above the return difference value of threshold temperature, stops heater.When environment temperature height
When high temperature threshold value, whether circuit judges equipment is detected in power frequency fortune by frequency converter working condition and frequency conversion tank mode of operation
Row state or converting operation state.When frequency converter is in converting operation state, single-chip microcomputer passes through stepper motor driving circuit
Two stepper motors are made to rotate forward operation, until detection both sides blinds opening point closure.Blinds open after, single-chip microcomputer by control after
Electrical equipment starts the cooling fan of cabinet both sides.Cabinet internal temperature declines therewith, when in-cabinet temperature is brought down below high temperature threshold value
During the return difference value of temperature, stop the operation of blower fan, then inverted and run by stepping electrode, close cabinet both sides blinds, until inspection
Survey both sides blinds closing point closure.
The system reserves parameter setting interface and RS485 communication interfaces.In system debug, using button display module with
Interface connects, and sets low temperature threshold and high temperature threshold value parameter.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. temperature control system in a kind of frequency conversion tank, it includes rack (1), and is arranged at the internal control unit of rack (1)
(2), detection unit (3), execution unit (4) and communication unit (5), the detection unit (3), execution unit (4) and communication unit
First (5) are all connected to control unit (2), it is characterised in that：
Detection unit (3) the acquisition system status information, and the information of collection is sent to control unit, the system mode
Information comprises at least in-cabinet temperature information, heatsink temperature information, frequency converter work state information, frequency conversion tank operating mode information
And radiating blinds action status information；
Described control unit (2) reception system status information, and execution unit (4) action is controlled according to system status information；
The execution unit (4) is each including stepper motor, radiator fan, heater and stepper motor, radiator fan, heater
Self-corresponding control circuit, each control circuit are all connected to the output interface of described control unit (2).
2. temperature control system in frequency conversion tank according to claim 1, it is characterised in that：The detection unit (3) includes
Temperature collection circuit, frequency converter working condition and frequency conversion tank mode of operation detection circuit, radiating blinds state detection circuit.
3. temperature control system in frequency conversion tank according to claim 1, it is characterised in that：Described control unit (2) includes
A/D modular converters, scale conversion module and the one-chip computer module being sequentially connected, the system shape that the detection unit (3) sends
State information analyzes and processes after A/D modular converters and scale conversion resume module, as input data for one-chip computer module.
4. temperature control system in frequency conversion tank according to claim 1, it is characterised in that：It is single that the system also includes power supply
Member, it includes 12VDC power supplys, all the way 5VDC power supplys and benchmark direct current 5V power supplys all the way all the way, to meet that system each unit is used
Electric demand.
5. temperature control system in frequency conversion tank according to claim 1, it is characterised in that：The communication unit (5) uses
RS485 communicating circuits.
6. temperature control system in frequency conversion tank according to claim 3, it is characterised in that：Described control unit (2) is also set
There is parameter setting interface, it is connected with button display module, to set low temperature threshold and high temperature threshold value parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720481146.1U CN206805318U (en) | 2017-05-03 | 2017-05-03 | Temperature control system in frequency conversion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720481146.1U CN206805318U (en) | 2017-05-03 | 2017-05-03 | Temperature control system in frequency conversion tank |
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| Publication Number | Publication Date |
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| CN206805318U true CN206805318U (en) | 2017-12-26 |
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|---|---|---|---|
| CN201720481146.1U Active CN206805318U (en) | 2017-05-03 | 2017-05-03 | Temperature control system in frequency conversion tank |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489047A (en) * | 2018-03-28 | 2018-09-04 | 芜湖美智空调设备有限公司 | Intelligent power module component, air conditioner and its control method |
| CN109067301A (en) * | 2018-08-15 | 2018-12-21 | 浙江佳乐科仪股份有限公司 | A kind of 1E grades of frequency conversion cabinet control system |
| CN110248523A (en) * | 2019-06-12 | 2019-09-17 | 江苏瑞奇海力科技有限公司 | A kind of elevator control cabinet temprature control method and device |
| CN110543196A (en) * | 2019-08-13 | 2019-12-06 | 华为技术有限公司 | Control method and control device for heat dissipation element |
| CN111056471A (en) * | 2020-03-03 | 2020-04-24 | 宝鸡巨菱钻采设备有限责任公司 | Lifting device for oil drilling machine based on alternating-current variable-frequency electric winch |
| CN112214057A (en) * | 2020-10-30 | 2021-01-12 | 中山斯瑞德环保科技有限公司 | Temperature and humidity control system and method for frequency converter |
| CN112804777A (en) * | 2019-11-13 | 2021-05-14 | 株洲中车时代电气股份有限公司 | Heating control device and method for external screen cabinet of rail transit vehicle |
| CN113163681A (en) * | 2021-03-31 | 2021-07-23 | 山东宇飞传动技术有限公司 | Converter heat abstractor suitable for extremely cold environment |
| CN117650396A (en) * | 2024-01-30 | 2024-03-05 | 深圳市蓝思航技术有限公司 | Fault protection device for frequency converter |
-
2017
- 2017-05-03 CN CN201720481146.1U patent/CN206805318U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489047A (en) * | 2018-03-28 | 2018-09-04 | 芜湖美智空调设备有限公司 | Intelligent power module component, air conditioner and its control method |
| CN109067301A (en) * | 2018-08-15 | 2018-12-21 | 浙江佳乐科仪股份有限公司 | A kind of 1E grades of frequency conversion cabinet control system |
| CN110248523A (en) * | 2019-06-12 | 2019-09-17 | 江苏瑞奇海力科技有限公司 | A kind of elevator control cabinet temprature control method and device |
| CN110543196A (en) * | 2019-08-13 | 2019-12-06 | 华为技术有限公司 | Control method and control device for heat dissipation element |
| CN112804777A (en) * | 2019-11-13 | 2021-05-14 | 株洲中车时代电气股份有限公司 | Heating control device and method for external screen cabinet of rail transit vehicle |
| CN111056471A (en) * | 2020-03-03 | 2020-04-24 | 宝鸡巨菱钻采设备有限责任公司 | Lifting device for oil drilling machine based on alternating-current variable-frequency electric winch |
| CN111056471B (en) * | 2020-03-03 | 2024-08-16 | 宝鸡巨菱钻采设备有限责任公司 | Lifting device for petroleum drilling machine based on alternating-current variable-frequency electric winch |
| CN112214057A (en) * | 2020-10-30 | 2021-01-12 | 中山斯瑞德环保科技有限公司 | Temperature and humidity control system and method for frequency converter |
| CN113163681A (en) * | 2021-03-31 | 2021-07-23 | 山东宇飞传动技术有限公司 | Converter heat abstractor suitable for extremely cold environment |
| CN117650396A (en) * | 2024-01-30 | 2024-03-05 | 深圳市蓝思航技术有限公司 | Fault protection device for frequency converter |
| CN117650396B (en) * | 2024-01-30 | 2024-05-14 | 深圳市蓝思航技术有限公司 | Fault protection device for frequency converter |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 124299 Dawa Town, Dawa County, Panjin City, Liaoning Province (Panjin Food Industry Circular Economy Demonstration Park) Patentee after: Boyang Intelligent Technology Engineering (Panjin) Co.,Ltd. Address before: 124000 Dawa Town, Dawa County, Panjin City, Liaoning Province (Panjin Food Industry Circular Economy Demonstration Park) Patentee before: PANJIN LIAOHE OIL FIELD BOYANG INDUSTRIAL CONTROL TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address |