CN109561635A - A kind of anti-salt dirt cooling system of frequency converter - Google Patents
A kind of anti-salt dirt cooling system of frequency converter Download PDFInfo
- Publication number
- CN109561635A CN109561635A CN201811359913.7A CN201811359913A CN109561635A CN 109561635 A CN109561635 A CN 109561635A CN 201811359913 A CN201811359913 A CN 201811359913A CN 109561635 A CN109561635 A CN 109561635A
- Authority
- CN
- China
- Prior art keywords
- active layer
- frequency converter
- temperature
- salt dirt
- cooling fan
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
Abstract
A kind of anti-salt dirt cooling system of frequency converter, including cooling fan, filtration drying device, the cooling fan cool down to frequency converter for sucking air；The filtration drying device is located at the airintake direction of the cooling fan, for filtering air in salt dirt；The filtration drying device includes first active layer, middle active layer and high active layer, and just active layer, middle active layer and the high active layer are sequentially overlapped.Influence The present invention reduces salt dirt to frequency converter and cooling fan；Avoid the damage to centralized electronic drive unit；Opening or closing for cooling fan can be adjusted according to the temperature of the environment, save electric energy；When the frequency converter operating ambient temperature is excessively high, user can safeguard in time.
Description
Technical field
This patent disclosure relates generally to frequency converter cooling fields, more particularly, to a kind of anti-salt dirt cooling system of frequency converter.
Background technique
Frequency converter is widely applied and field of industrial production, can be obviously improved the utilization efficiency of the energy.
In potassium fertilizer production process, material rotary process and drying process can generate a large amount of salt dirt, these salt dirt meetings
It diffuses in air.When frequency converter is run in this environment, variable-frequency fan is by sucking air come in frequency converter
Heater element cools down, and can suck a large amount of salt dirt inside frequency converter, these salt dirts have again partial size is small, contain wet, corrosivity,
The characteristics such as Electrostatic Absorption, crystallization, electric conductivity, salt dirt sucking frequency converter can corrode the electronic component of inversion unit,
It is crystallized on circuit board, causes short circuit, damage frequency converter.Meanwhile the air of salt dirt, by frequency converter cooling fan, salt dirt is in frequency conversion
Device fan spindle bearing is built up, and will cause variable-frequency fan bearing stall.Using centralized electronic drive unit, frequency conversion in existing frequency conversion tank
Fan input voltage is taken from inside frequency converter, and stalled fan is very big to the impact of frequency converter internal logic, and serious person will cause collection
The plate rectifying part of Chinese style electronic drive unit is damaged.
Summary of the invention
Problems solved by the invention is to solve damage of the salt dirt to frequency converter, solves salt dirt to frequency converter cooling fan
Stall solves damage of the frequency converter cooling fan blocking to centralized electronic drive unit.
The present invention has had a kind of anti-salt dirt cooling system of frequency converter, including cooling fan 1, filtration drying device 2 altogether, described
Cooling fan 1 cools down to frequency converter for sucking air；The filtration drying device 2 is located at the air inlet side of the cooling fan 1
To, for filtering air in salt dirt；The filtration drying device 2 includes first active layer 21, middle active layer 22 and high active layer 23, described
First active layer 21, middle active layer 22 and high active layer 23 are sequentially overlapped；The just active layer 21 is for filtering bulky grain salt dirt and adsorbing salt dirt
In moisture, the middle active layer 22 is used to adsorb electrostatic particle in salt dirt, and the high active layer 23 is for filtering fine grained salt dirt.
A kind of embodiment according to the present invention, the system, wherein the just active layer 21 uses plate-type filtering layer；
The middle active layer 22 uses net bag type filter layer；The high active layer 23 uses non-inductive windings pocket formula separation layer.
A kind of embodiment according to the present invention, the system, wherein it is dry that the just active layer 21 adds particle type
Agent, for adsorbing the moisture in salt dirt；The middle active layer 22 uses the net bag type filter layer of electrostatic cotton filtrate material, for adsorbing
The subtle salt dirt of electrostatic；The high active layer 23 using glass fibre material non-inductive windings pocket formula separation layer, for filter 0.2 micron with
Under salt dirt.
A kind of embodiment according to the present invention, just active layer 21, middle active layer 22 and the high active layer 23 are detachable and replace.
A kind of embodiment according to the present invention, the system further include shell 4, the shell 4 include inlet end and
Connecting pin；The shell 4 is for encapsulating the cooling fan 1 and filtration drying device 2；The inlet end is for admitting air into
The system；The connecting pin is used to match connection with the frequency converter.
A kind of embodiment according to the present invention, the system further include independently-powered control device 5, the independence
Power supply control apparatus 5 includes total power switch 51 and fan power switch 52, and the independent power supply device is used for individually to described
Cooling fan 1 is powered.
A kind of embodiment according to the present invention, the system further include temperature control device 6, and the temperature control device 6 includes
Temp probe 61, temperature controller 62 and relay 63, the temp probe 61 are placed in inside the frequency converter, are become for monitoring
Temperature inside frequency device；The temperature controller 62 is connect with the temp probe 61, for according to the temperature inside frequency converter
Issue temperature control signals；The relay 63 is connect with the temperature controller 62 and fan power switch 52 respectively, is used for
The fan power switch 52 is controlled according to the temperature control signals to start and stop.
According to another aspect of the present invention, the system further includes alarm device 64, the alarm device 64 and institute
State temperature controller 62 connection, for temperature close to the frequency converter damaging temperature when, sound an alarm.
According to another aspect of the present invention, a kind of frequency converter is provided, the frequency converter includes described in any of the above-described
Anti- salt dirt cooling system.
Anti- salt dirt cooling system provided by the invention, has done stepped filtering to ingredient different in salt dirt, has reduced
Influence of the salt dirt to frequency converter and cooling fan；Independently-powered control device 5 avoids 1 bearing stall of cooling fan to concentration
The damage of formula electronic drive unit；Temperature control device 6 makes it possible to the temperature of the working environment according to the frequency converter, adjusts cooling
Fan 1 opens or closes, and saves electric energy；The alarm device 64, so that when the frequency converter operating ambient temperature is excessively high,
User can safeguard in time.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of anti-salt dirt cooling system of frequency converter；
Fig. 2 is the schematic diagram of filtration drying device；
Fig. 3 is the schematic diagram of shell；
Fig. 4 is the schematic diagram of independently-powered control device；
Fig. 5 is the schematic diagram of temperature control device；And
Fig. 6 is the schematic diagram of alarm device.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, and reference label refers to the group in the present invention
Part, technology, realizing under appropriate circumstances so as to advantages and features of the invention can be easier to be understood.Following description is pair
The materialization of the claims in the present invention, and other specific implementations not clearly stated relevant to claim also belong to power
The range that benefit requires.
Fig. 1 shows a kind of schematic diagram of anti-salt dirt cooling system of frequency converter.
As shown in Figure 1, a kind of anti-salt dirt cooling system of frequency converter, including cooling fan 1, filtration drying device 2, it is described cold
But fan 1 cools down to frequency converter for sucking air；The filtration drying device 2 is located at the airintake direction of the cooling fan 1,
Salt dirt in for filtering air；The filtration drying device 2 includes first active layer 21, middle active layer 22 and high active layer 23, described first
Active layer 21, middle active layer 22 and high active layer 23 are sequentially overlapped；The just active layer 21 is for filtering bulky grain salt dirt and adsorbing in salt dirt
Moisture, the middle active layer 22 is used to adsorb electrostatic particle in salt dirt, and the high active layer 23 is for filtering fine grained salt dirt.
Existing frequency converter generally comprises fan, filter cotton, at present at home, frequency converter used in outer every profession and trade be logical
With frequency converter, universal frequency converter is not applied among special salt dirt environment.
Anti- salt dirt cooling system of the present invention can be used as the substitution of existing fan of frequency converter and filter cotton, can also be with
It is used cooperatively with existing fan and filter cotton.Model, the specification of the cooling fan 1, which can according to need, to be adjusted, this hair
It is bright not to limit.
When the cooling fan 1 starts, bulky grain salt dirt and moisture in air are absorbed by the just active layer 21, and electrostatic is thin
Micro- salt dirt is absorbed by the middle active layer 22, and bottom holds dirt and absorbed by the high active layer 23, after the filtration drying device 2
Air, then by the cooling fan 1, into frequency converter inside carry out cooling operations.
The filtration drying device 2 removes salt dirt and moisture in air, avoids the stall work to 1 bearing of cooling fan
With also avoiding the damage to frequency converter internal element.
It, can also be according to different salt dirt ingredients to each in the filtration drying device 2 in different working environments
Layering is adjusted, and suitably increases or decreases the exchange that position is carried out between layering, or each layering.The filtration drying device
Each layering in 2 is dismountable.
Salt dirt is filtered by the way of three-stage filtration in the present invention, it can be in the reduction filtered air of big degree
The content of salt dirt, and air can be dried.
According to embodiment of the present invention, the just active layer 21 is using plate-type filtering layer；The middle active layer 22 is
Using net bag type filter layer；The high active layer 23 is using non-inductive windings pocket formula separation layer.
In the present invention, in salt dirt ingredient and air enter the frequency converter speed, to it is described just active layer
21, middle active layer 22 and high active layer 23 define specific structure.For example, the high active layer 23 uses non-inductive windings pocket formula separation layer,
Partition is avoided to the obstruction of air.
According to embodiment of the present invention, the just active layer 21 is flame retardant synthetic fibers material, and addition particle type is dry
Drying prescription, for adsorbing the moisture in salt dirt；The middle active layer 22 is the net bag type filter layer of electrostatic cotton filtrate material, for adsorbing
The subtle salt dirt of electrostatic；The high active layer 23 is the non-inductive windings pocket formula separation layer of glass fibre material, for filtering 0.2 micron or less
Salt dirt.
The just active layer 21 adds particle type desiccant, when air is by the just active layer 21, to the moisture in air
It is absorbed；On the other hand flowing air the desiccant may be blown off it is described just active layer 21, cause secondary dust, this
Invention uses particle type desiccant, such as spherical silica gel, avoids the generation of secondary dust.
Fig. 2 shows the schematic diagrames of filtration drying device.
As shown in Fig. 2, just active layer 21, middle active layer 22 and the high active layer 23 are detachable and replace.
Each layering in the filtration drying device 2 is in use for some time, it may be desirable to safeguard, the service life being respectively layered
It is different.In the present invention, each layering can be dismantled individually, separately maintaining or replacing convenient for each layering.
Each filtering layering that different indexs can also be customized, forms different hierarchical blocks, thus according to different work
Environment is arranged different hierarchical blocks and is collocated with each other, and is combined into the filtration drying device 2.
Fig. 3 shows the schematic diagram of shell.
As shown in figure 3, the system, further includes shell 4, the shell 4 includes inlet end and connecting pin；The shell
4 for encapsulating the cooling fan 1 and filtration drying device 2；The inlet end is for admitting air into the system；The company
End is connect for matching connection with the frequency converter.
The shell 4 is used to for the cooling fan 1 and filtration drying device 2 to be packaged into an entirety, forms packaging body,
To match different equipment, it is not limited only to the various frequency converters of potash fertilizer production field.
The packaging body can also be combined with each other, the connecting pin of two or more packaging bodies respectively with the frequency converter
Connection, the size of air inflow is needed according to the frequency converter, can be all turned on or the packaging body is opened in part.Meanwhile when
Some packaging body is needed repairing or is replaced, and does not influence the normal operation of the frequency converter.
Fig. 4 shows the schematic diagram of independently-powered control device.
As shown in figure 4, the system, further includes independently-powered control device 5, the independently-powered control device 5 is wrapped
Total power switch 51 and fan power switch 52 are included, the independent power supply device to the cooling fan 1 for individually powering.
Battery main switch refers to the switch of the total line to the inverter supply.Existing inverter supply is by power supply
Master switch is controlled, and the power supply of fan of frequency converter, the centralized electric drive depended on inside frequency converter further
Unit.
The independent power supply device is independently of the centralized electronic drive unit, directly from the total power switch
The single channel route of 51 connections, the fan power switch 52 are control switches cooling fan 1 starting or closed.Even if because
Lead to 1 stall of cooling fan for failure, is also avoided that and causes logic to impact the centralized electronic drive unit, damage
The internal element of the frequency converter.
Fig. 5 shows the schematic diagram of temperature control device.
As shown in figure 5, the system, further includes temperature control device 6, the temperature control device 6 includes temp probe 61, temperature
Controller 62 and relay 63, the temp probe 61 is placed in inside the frequency converter, for monitoring the temperature inside frequency converter；
The temperature controller 62 is connect with the temp probe 61, for issuing temperature control letter according to the temperature inside frequency converter
Number；The relay 63 is connect with the temperature controller 62 and fan power switch 52 respectively, for according to the temperature control
Signal processed controls the fan power switch 52 and starts and stops.
The temp probe 61 detects temperature inside the frequency converter, and temperature signal is transferred to the temperature and is controlled
Device 62, the temperature controller 62 judge whether temperature reaches some critical value for needing to start cooling system, when having reached
Critical value, temperature controller 62 issue signal to the relay 63, and the control of relay 63 is made to start the fan power supply
Switch 52, the cooling fan 1 are started to work.When the temperature controller 62 judges temperature lower than the critical value, temperature control
Device 62 processed issues signal to the relay 63, and the relay 63 controls the fan power switch 52, makes the cooling wind
Fan 1 stops working.
Such as: when frequency converter inner heat conductor element temperature is lower than 35 degree hereinafter, cooling fan 1 stalls, when temperature rise is big
In 35 degree or more, 1 fan of cooling fan can start the purpose for having reached automatic constant-temperature automatically.
Fig. 6 shows the schematic diagram of alarm device.
As shown in fig. 6, the system, further includes alarm device 64, the alarm device 64 and the temperature controller
62 connections sound an alarm when for temperature close to the frequency converter damaging temperature.
Frequency converter operation element work when, suitable operating temperature be it is determining, when temperature be more than some threshold value when, have
The damage that may cause individual component, even results in disorderly closedown.
Suitable temperature threshold is set in the temperature controller 62, the temperature threshold can be lower than the damage of each element
Temperature, when the temperature that temp probe 61 detects is more than the temperature threshold, the temperature controller 62 is to the alarm device
64 send signal, and the alarm device 64 sounds an alarm, and are disposed convenient for user's discovery.
For example, setting temperature threshold is 42 degree, when detecting temperature higher than 42 degree, the temperature controller 62 is to the police
Reporting device 64 issues trigger signal, triggers the alarm device and sounds an alarm.
The alarm device 64 can also be connect with the total power switch 51, when the alarm device 64 is connected to alarm
When signal, controls the total power switch 51 and stop to the inverter supply, avoiding high temperature from causing transducer element can not
Inverse damage.
In addition, the power supply of the temperature control device is also obtained from the total power switch.
According to another aspect of the present invention, a kind of frequency converter is provided, the frequency converter includes described in any of the above-described
Anti- salt dirt cooling system.
Anti- salt dirt cooling system provided by the invention, has done stepped filtering to ingredient different in salt dirt, has reduced
Influence of the salt dirt to frequency converter and cooling fan；Independently-powered control device 5 avoids 1 bearing stall of cooling fan to concentration
The damage of formula electronic drive unit；Temperature control device 6 makes it possible to the temperature of the working environment according to the frequency converter, adjusts cooling
Fan 1 opens or closes, and saves electric energy；The alarm device 64, so that when the frequency converter operating ambient temperature is excessively high,
User can safeguard in time.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and this
Field technical staff can be designed alternative embodiment without departing from the scope of the appended claims.In claim
In, any reference symbol between parentheses should not be configured to limitations on claims.
Claims (9)
1. a kind of anti-salt dirt cooling system of frequency converter, including cooling fan (1), filtration drying device (2),
The cooling fan (1) cools down to frequency converter for sucking air；
The filtration drying device (2) is located at the airintake direction of the cooling fan (1), for filtering air in salt dirt；
The filtration drying device (2) includes first active layer (21), middle active layer (22) and high active layer (23), the just active layer (21),
Middle active layer (22) and high active layer (23) are sequentially overlapped；
The just active layer (21) is for filtering bulky grain salt dirt and adsorbing the moisture in salt dirt, and the middle active layer (22) is for adsorbing
Electrostatic particle in salt dirt, the high active layer (23) is for filtering fine grained salt dirt.
2. system according to claim 1, wherein
The just active layer (21) uses plate-type filtering layer；
The middle active layer (22) uses net bag type filter layer；
The high active layer (23) uses non-inductive windings pocket formula separation layer.
3. system according to claim 2, wherein
The just active layer (21) adds particle type desiccant, for adsorbing the moisture in salt dirt；
The middle active layer (22) uses the net bag type filter layer of electrostatic cotton filtrate material, is used for the subtle salt dirt of adsorption electrostatic；
The high active layer (23) uses the non-inductive windings pocket formula separation layer of glass fibre material, for filtering 0.2 micron of salt below
Dirt.
4. system according to claim 1, just active layer (21), middle active layer (22) and the high active layer (23) are detachably and more
It changes.
5. system according to claim 1 further includes shell (4), the shell (4) includes inlet end and connecting pin；
The shell (4) is for encapsulating the cooling fan (1) and filtration drying device (2)；
The inlet end is used to admit air into the system；
The connecting pin is used to match connection with the frequency converter.
6. system according to claim 1 further includes independently-powered control device (5), the independently-powered control device
It (5) include total power switch (51) and fan power switch (52), the independently-powered control device (5) is used for individually to described
Cooling fan (1) power supply.
7. system according to claim 6 further includes temperature control device (6), the temperature control device (6) includes temp probe
(61), temperature controller (62) and relay (63),
The temp probe (61) is placed in inside the frequency converter, for monitoring the temperature inside frequency converter；
The temperature controller (62) connect with the temp probe (61), for issuing temperature according to the temperature inside frequency converter
Control signal；
The relay (63) connect with the temperature controller (62) and fan power switch (52) respectively, for according to
Temperature control signals control the fan power switch (52) and start and stop.
8. system according to claim 7 further includes alarm device (64), the alarm device (64) and the temperature control
Device (62) processed connection, for temperature close to the frequency converter damaging temperature when, sound an alarm.
9. a kind of frequency converter, the frequency converter includes the described in any item anti-salt dirt cooling systems of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359913.7A CN109561635A (en) | 2018-11-15 | 2018-11-15 | A kind of anti-salt dirt cooling system of frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359913.7A CN109561635A (en) | 2018-11-15 | 2018-11-15 | A kind of anti-salt dirt cooling system of frequency converter |
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| Publication Number | Publication Date |
|---|---|
| CN109561635A true CN109561635A (en) | 2019-04-02 |
Family
ID=65866517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811359913.7A Pending CN109561635A (en) | 2018-11-15 | 2018-11-15 | A kind of anti-salt dirt cooling system of frequency converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN109561635A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004265871A (en) * | 2004-04-08 | 2004-09-24 | Hitachi Hometec Ltd | Cooling structure of induction heating device |
| CN205216489U (en) * | 2015-12-13 | 2016-05-11 | 赵洪涛 | Gas filter for gas analyzer |
| CN106549555A (en) * | 2016-12-15 | 2017-03-29 | 重庆科川电气有限公司 | A kind of automatic heat radiation frequency converter |
-
2018
- 2018-11-15 CN CN201811359913.7A patent/CN109561635A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004265871A (en) * | 2004-04-08 | 2004-09-24 | Hitachi Hometec Ltd | Cooling structure of induction heating device |
| CN205216489U (en) * | 2015-12-13 | 2016-05-11 | 赵洪涛 | Gas filter for gas analyzer |
| CN106549555A (en) * | 2016-12-15 | 2017-03-29 | 重庆科川电气有限公司 | A kind of automatic heat radiation frequency converter |
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Application publication date: 20190402 |
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