CN107683068A - Radiator and there is its frequency converter - Google Patents
Radiator and there is its frequency converter Download PDFInfo
- Publication number
- CN107683068A CN107683068A CN201710861413.2A CN201710861413A CN107683068A CN 107683068 A CN107683068 A CN 107683068A CN 201710861413 A CN201710861413 A CN 201710861413A CN 107683068 A CN107683068 A CN 107683068A
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- CN
- China
- Prior art keywords
- radiator
- cooling
- gas
- dehumidifying
- temperature
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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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
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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
- H05K7/2089—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
- H05K7/20936—Liquid coolant with phase change
-
- 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
The invention provides a kind of radiator and there is its frequency converter.Radiator casing is included according to the radiator of the present invention, radiator casing has inner chamber, the air inlet connected with inner chamber and gas outlet, and radiator also includes the dehumidifying component for being arranged on interior intracavitary, and dehumidifying component includes the first cooling and dehumidifying portion.The radiator, which can dehumidify, prevents condensed water.
Description
Technical field
The present invention relates to air adjustment auxiliary equipment field, in particular to a kind of radiator and has its frequency conversion
Device.
Background technology
With the development of air conditioner industry, and world energy sources is in short supply, now the requirement more and more higher to air-conditioning efficiency, from
This energy-saving and frequency-variable technology starts the overall application on air-conditioning.But for big-power transducer, how high efficiency and heat radiation is
The problem of challenging.
At present in frequency conversion industry, radiating generally use fan cooling, refrigerant radiating or the fan of frequency converter add refrigerant fan heat
Three kinds of forms, for the big-power transducer that air conditioner industry uses, the mode of refrigerant radiating is added usually using fan, it is this
Radiating mode can efficiently radiate, and ensure the normal reliable work of frequency converter.But traditional fan adds refrigerant radiating mode
In the presence of it is one very big the drawbacks of：The presence of condensation water forms grave danger to the normal work of frequency converter.The presence of condensation water can
The short circuit between electric elements can be caused, influences work safety and service life.
The content of the invention
The present invention is intended to provide a kind of can avoid the radiator of condensation water influence security and have its frequency converter.
The invention provides a kind of radiator, and it includes radiator casing, and radiator casing has inner chamber, connected with inner chamber
Air inlet and gas outlet, radiator also include being arranged on the dehumidifying component of interior intracavitary, dehumidifying component includes the first cooling and dehumidifying
Portion.
Alternatively, dehumidifying component also includes the first heating part and the second cooling and dehumidifying portion, and the first cooling and dehumidifying portion, first add
Hot portion and the second cooling and dehumidifying portion are set gradually along gas flow direction.
Alternatively, radiator also includes water fender, and water fender is arranged on interior intracavitary.
Alternatively, it is located at the downstream of dehumidifying component along gas flow direction, water fender.
Alternatively, water fender is multiple, and is arranged at intervals successively along gas flow direction.
Alternatively, radiator also includes air-supply assembly, and air-supply assembly includes pressure fan and installing plate, installing plate fixed setting
In the interior intracavitary of radiator casing, blower setting is on a mounting board.
Alternatively, pressure fan and the cross section of installing plate radiator cover housing.
Alternatively, the first cooling and dehumidifying portion includes being passed through low temperature refrigerant and gas is cooled to the first evaporation below dew point
Device；And/or first heating part include being passed through high temperature refrigerant and by the first more than gas heating to dew point condenser；And/or
Second cooling and dehumidifying portion includes being passed through low temperature refrigerant and gas is cooled to the second evaporator below dew point.
Alternatively, radiator also includes the Temperature Humidity Sensor of detection gas temperature and humidity.
Alternatively, Temperature Humidity Sensor is arranged at the air inlet of radiator casing.
Alternatively, Temperature Humidity Sensor is arranged at the gas outlet of radiator casing.
Alternatively, radiator also includes control unit, and control unit is connected with Temperature Humidity Sensor, and according to the temperature of gas and
Humidity determines the dew point of gas, the refrigerant entered according to dew point control in the first evaporator, the first condenser and the second evaporator
Temperature.
Alternatively, radiator also includes drip tray, and drip tray is arranged on the bottom of radiator casing.
Alternatively, air inlet is located at the bottom of radiator casing, and gas outlet is arranged on the top of radiator casing.
According to another aspect of the present invention, there is provided a kind of frequency converter, it includes frequency converter shell and is arranged on frequency converter shell
Internal radiator, radiator are above-mentioned radiator.
According to the radiator of the present invention and there is its frequency converter, by setting the first cooling and dehumidifying in radiator casing body
Portion, coordinated by radiator casing and the first cooling and dehumidifying portion, air-flow cooled down, makes vapor condensation therein,
Form drop to separate with air-flow, realize the dehumidifying to air-flow.Because air-flow dehumidifies in radiator casing body, it can make what is be condensed out
Drop is stayed in radiator casing body, and cooling air-flow forms harm caused by condensation water during avoiding use.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the stereochemical structure exploded perspective view according to the radiator of the present invention；
Fig. 2 is the dimensional structure diagram according to the radiator of the present invention；
Fig. 3 is the exploded perspective view according to the removal radiator casing of the radiator of the present invention.
Description of reference numerals：
1st, radiator casing；2nd, air inlet；3rd, gas outlet；4th, the first cooling and dehumidifying portion；5th, the first heating part；6th, second is cold
But dehumidification portion；7th, water fender；8th, pressure fan；9th, installing plate；10th, Temperature Humidity Sensor；11st, drip tray.
Embodiment
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As Figure 1-3, according to an embodiment of the invention, radiator includes radiator casing 1, and radiator casing 1 has
Inner chamber, the air inlet 2 connected with inner chamber and gas outlet 3, radiator also include being arranged on interior intracavitary dehumidifying component, dehumidifying component bag
Include the first cooling and dehumidifying portion 4.
By setting the first cooling and dehumidifying portion 4 in radiator casing body, pass through radiator casing and the first cooling and dehumidifying portion 4
Coordinate, air-flow is cooled down, make vapor condensation therein, form drop and separated with air-flow, realize and air-flow is removed
It is wet.Because air-flow dehumidifies in radiator casing body, the drop that can make to be condensed out is stayed in radiator casing body, is avoided and was used
Cooling air-flow forms harm caused by condensation water in journey
Dehumidifying component also includes the first heating part 5 and the second cooling and dehumidifying portion 6, the first cooling and dehumidifying portion 4, the first heating part
5 and second cooling and dehumidifying portion 6 set gradually along gas flow direction.By setting the first cooling and dehumidifying in radiator casing 1
Cooling and dehumidifying portion 6 of portion 4 and second, by being cooled down to air-flow, make vapor condensation therein, form drop and air-flow
Separation, realizes the dehumidifying to air-flow, due to having carried out dual-cooled dehumidifying, accordingly ensure that flowed out from the gas outlet 3 of radiator
Gas humidity is low will not to re-form condensation, and cooling air-flow forms harm caused by condensation water during avoiding use, while double
Gas temperature cool down again after is relatively low, and cooling effect during for cooling down is more preferable.First heating part 5 can be returned to gas
Temperature, so as to the second cooling and dehumidifying portion 6 coordinate, allow gas to enough be cooled down again, and reduce the load cooled down again, removed so as to reduce
Wet power consumption.
The radiator can fundamentally solve the problems, such as frequency converter condensation water, add refrigerant radiating knot using brand-new fan
Structure, can be good at the heat dissipation problem for the big-power transducer that solution uses, while can also avoid condensation water problems.
As Figure 1-3, radiator casing 1 is the cylinder that cross section is rectangle, certainly, in other embodiments, radiating
Device housing 1 can be that cross section is the cylinder of circular, polygon or irregular shape, casing etc., as long as can be other structures
Installing space is provided, forms stable support.The position that the shapes and sizes of radiator casing 1 can be arranged as required to
Space size determines.Correspondingly, the shape of the structure in radiator casing 1 can be with the shape phase of the inner chamber of radiator casing 1
Seemingly, naturally it is also possible to different.
Alternatively, in the present embodiment, air inlet 2 is located at the bottom of radiator casing 1, and gas outlet 3 is arranged on radiator
The top of housing 1.Air-flow is flowed from down to up in this way, force gas fully with the first cooling and dehumidifying portion 4, first
The cooling and dehumidifying portion 6 of heating part 5 and second fully contacts, so that gas dehumidification and cooling effect are all fine.
In order to lift air quantity, so as to improve cooling effect, air inlet is provided with each side wall of radiator casing 1
2 and gas outlet 3.Certainly, the difference of air quantity as needed, the set location and quantity of air inlet 2 and gas outlet 3 can be other
Position and quantity.
Specifically, air inlet 2 and gas outlet 3 can be the circular holes that four sides uniformly opens up up and down in radiator casing 1, with
For air inlet/outlet.In the present embodiment, radiator also includes air-supply assembly, and air-supply assembly is arranged in radiator casing 1, is used for
There is provided and force gas as the power flowed in radiator casing 1.Wherein, air-supply assembly includes pressure fan 8 and installing plate 9, installation
Plate 9 is fixedly installed on the interior intracavitary of radiator casing 1, and mounting hole is provided with installing plate 9, and pressure fan 8 is set corresponding to mounting hole
Put on installing plate 9.Alternatively, pressure fan 8 and the cross section of the radiator cover housing 1 of installing plate 9.The one side of installing plate 9 is used
In installing and fixing pressure fan 8, on the other hand it can also seal the seam between the internal face of pressure fan 8 and radiator casing 1
Gap, ensure that all gas are required for sending out by pressure fan 8.Pressure fan 8 can be fan, and it is used for drive gas flow and moved.
Alternatively, air-supply assembly is arranged on the top of radiator casing 1, is set close to gas outlet 3, passes through this top
Exhaust structure, gas can be made to be easier to enter in radiator casing 1, and the flow velocity for the cooling air-flow sent out is faster, contributes to
Strengthen the circulation of air-flow, lift cooling effect.
First cooling and dehumidifying portion 4, the second cooling and dehumidifying portion 6 and the first heating part 5 are arranged at the lower section of air-supply assembly.Can
Selection of land, along gas flow direction (being in the present embodiment direction from down to up), be disposed with the first cooling and dehumidifying portion 4,
First heating part 5 and the second cooling and dehumidifying portion 6.
Wherein, the first cooling and dehumidifying portion 4 includes being passed through low temperature refrigerant and gas being cooled into dew point (i.e. condensation point) below
The first evaporator.First cooling and dehumidifying portion 4 realizes the cooling to air-flow using refrigerant evaporation heat absorption, and the temperature of air-flow is cooled down
When below to condensation point, the vapor in air-flow will be condensed into drop, and fall under gravity, realize gas and drop
Separation, so as to reduce the humidity of air-flow.
Alternatively, the first heating part 5 includes being passed through high temperature refrigerant and by the first more than gas heating to dew point condenser.
First heating part 5 realizes the heating to air-flow by the condensation heat release of refrigerant, the temperature of air-flow is risen to more than condensation point, so
Cooling load can be reduced in follow-up cooling.
Alternatively, the second cooling and dehumidifying portion 6 includes being passed through low temperature refrigerant and gas is cooled to the second steaming below dew point
Send out device.Second evaporator is cooled down again using the evaporation endothermic of refrigerant to air-flow, its temperature is again decreased to condensation point
Hereinafter, air-flow is dehumidified again, and reduces gas flow temperature, may be used as follow-up cooling and use, both realized cooling, again
Avoid condensation water.
As shown in Fig. 2 the first cooling and dehumidifying portion 4, the first heating part 5 and the second cooling and dehumidifying portion 6 are passed through using copper pipe
The structure of fin, for refrigerant and air heat-exchange.Refrigerant is from the first cooling and dehumidifying portion 4, the first heating part 5 and the second cooling and dehumidifying
The refrigerant import in portion 6 flows into, and is flowed out from its refrigerant exit, is removed in the first cooling and dehumidifying portion 4, the first heating part 5 and the second cooling
Exchanged heat in wet end 6 with air-flow, realize the cooling or heating to air-flow.Certainly, in other embodiments, the first cooling and dehumidifying portion 4,
First heating part 5 and the second cooling and dehumidifying portion 6 can be other can arbitrarily realize cooling and heating structure, such as electricity cooling and
Electric heating device.
Alternatively, radiator also includes water fender 7, and water fender 7 is arranged on interior intracavitary.Water fender 7 can prevent drop stream
Go out radiator casing, so as to prevent drop from endangering frequency converter safety.Alternatively, it is located at second along gas flow direction, water fender 7
The downstream in cooling and dehumidifying portion 6, i.e., in the present embodiment, water fender 7 are located at the top in the second cooling and dehumidifying portion 6.Water fender 7 is used for
Prevent water droplet from being flowed out with air-flow, its can gas by when stop a part of water droplet, so as to avoid air-flow velocity from comparatively fast causing
Dehumidifying it is incomplete, the problem of air-flow carries some drop, further prevent the air-flow of cooling from entering cooled structure
Exist when middle drop or humidity it is excessive influence cooled structure safe operation the problem of.
Alternatively, water fender 7 is multiple, and is arranged at intervals successively along gas flow direction.So can further it improve
Dash effect on moisture extraction.
Alternatively, radiator also includes the Temperature Humidity Sensor 10 of detection gas temperature and humidity, Temperature Humidity Sensor 10
It is arranged at air inlet 2 and/or gas outlet 3.Temperature Humidity Sensor 10 be used for detect enter and/or discharge air-flow temperature and
Humidity.Temperature Humidity Sensor 10 in gas outlet 3 can be after detection process air-flow temperature and humidity, so as to be confirmed whether
It disclosure satisfy that the cooling requirement of frequency converter.
Radiator also includes control unit, and control unit is connected with Temperature Humidity Sensor 10, and according to the temperature and humidity of gas
The dew point of gas is determined, the refrigerant temperature entered according to dew point control in the first evaporator, the first condenser and the second evaporator.
Alternatively, radiator also includes drip tray 11, and drip tray 11 is arranged on the bottom of radiator casing 1.Drip tray 11
For accepting condensed water, the side of drip tray 11 is provided with condensation-water drain, condensed water is drawn.Drip tray 11 can conduct
The base of radiator casing 1 and directly omit the base of radiator casing 1, the bottom of radiator casing 1 can also be fixedly installed on
On seat.Certainly in other embodiments, radiator can be not provided with drip tray 11, and allow condensed water to directly fall in radiator casing
1 bottom is expelled directly out again.
According to another aspect of the present invention, there is provided a kind of frequency converter, it includes frequency converter shell and is arranged on frequency converter shell
Internal radiator, radiator are above-mentioned radiator.
The course of work of the radiator is as follows：
Radiator needs the condensation-water drain in drip tray 11 to connect drainpipe before starting working.First evaporator needs to connect
Logical low temperature refrigerant, for the gas that cools for the first time.Condenser connects high temperature refrigerant, for carrying out temperature-compensating to gas.Second
Evaporator connects low temperature refrigerant, second of cooling for gas.
After radiator is started working, pressure fan 8 is flowed to up-draught, air by the air inlet 2 of the downside of radiator casing 1
Enter, flow up, the gas outlet outflow radiator of the upside through radiator casing 1.When air flows through the first evaporator, pass through tune
Throttle into refrigerant temperature, the gas temperature for ensureing to flow through is reduced to below dew-point temperature, and the moisture in air starts condensation, is coagulated
Dew flows into bottom drip tray 11 and discharges radiator.
Gas after dehumidifying for the first time continues up flowing and passes through condenser, by adjusting the refrigerant temperature flowed into, ensures
The gas temperature flowed through is gone back up to more than dew-point temperature rapidly.
Obtain temperature-compensating gas continue up flowing pass through the second evaporator, by regulation inflow refrigerant temperature,
The gas temperature for ensureing to flow through is again decreased to below dew-point temperature, and the moisture in air starts again at condensation, and condensation water flows into
Bottom drip tray 11 discharges radiator.
Hereafter the cryogenic gas continues up flowing, flows out radiator after water fender 7, flows into the frequency conversion tank of frequency converter
It is interior to cool for frequency converter.Because gas passes through the dual dehumidifying of dual cooling, air humidity substantially reduces, and it is multiple in frequency conversion tank
Circulating dehumidification effect is more obvious.It so fundamentally ensure that while cooling to frequency converter, avoid in frequency conversion tank and coagulate
The appearance of dew.
When radiator works, controller calculates current gas in real time by gathering the data of Temperature Humidity Sensor 10
Dew-point temperature, then send instruction regulation into the first evaporator, the second evaporator and condenser refrigerant temperature, so as to protect
The reliable dehumidifying of card.
Radiator is placed on inside frequency conversion tank, connects line related and pipeline.Small independent as one of radiator
Cabinet, it is suitably local to be placed on a space of frequency conversion tank, its condensed water that can be gone out in cooling gas, and will be cold
Condensed water collection discharge, effectively prevent in frequency conversion tank exist condensed water threaten device lifetime and it is safe the problem of.
Had the following technical effect that according to the radiator of the present invention and with its frequency converter：
The structure that fan adds refrigerant to radiate can be good at the heat dissipation problem for solving big-power transducer, while can also keep away
Exempt from condensation water problems.
Radiator uses independent enclosed construction, and compact-sized, structure type can be easy for installation with flexible and changeable.
Heat spreader structures have the dual dehumidification function of dual-cooled, air humidity in reduction frequency conversion tank that can be quickly, keep away
Exempt from the appearance of condensation water in cabinet.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (15)
1. a kind of radiator, it is characterised in that including radiator casing (1), the radiator casing (1) has inner chamber and institute
Air inlet (2) and gas outlet (3) of inner chamber connection are stated, the radiator also includes the dehumidifying component for being arranged on the interior intracavitary,
The dehumidifying component includes the first cooling and dehumidifying portion (4).
2. radiator according to claim 1, it is characterised in that the dehumidifying component also include the first heating part (5) and
Second cooling and dehumidifying portion (6), the first cooling and dehumidifying portion (4), first heating part (5) and the second cooling and dehumidifying portion
(6) set gradually along gas flow direction.
3. radiator according to claim 1 or 2, it is characterised in that the radiator also includes water fender (7), described
Water fender (7) is arranged on the interior intracavitary.
4. radiator according to claim 3, it is characterised in that along gas flow direction, the water fender (7) is located at institute
State the downstream of dehumidifying component.
5. radiator according to claim 3, it is characterised in that the water fender (7) is multiple, and along the gas stream
Dynamic direction is arranged at intervals successively.
6. radiator according to claim 1, it is characterised in that the radiator also includes air-supply assembly, the air-supply
Component includes pressure fan (8) and installing plate (9), and the installing plate (9) is fixedly installed on the inner chamber of the radiator casing (1)
Interior, the pressure fan (8) is arranged on the installing plate (9).
7. radiator according to claim 6, it is characterised in that the pressure fan (8) and the installing plate (9) covering institute
State the cross section of radiator casing (1).
8. radiator according to claim 2, it is characterised in that
The first cooling and dehumidifying portion (4) includes being passed through low temperature refrigerant and gas is cooled to the first evaporator below dew point；
And/or
First heating part (5) includes being passed through high temperature refrigerant and by the first more than gas heating to dew point condenser；With/
Or,
The second cooling and dehumidifying portion (6) includes being passed through low temperature refrigerant and gas is cooled to the second evaporator below dew point.
9. radiator according to claim 8, it is characterised in that the radiator also includes detection gas temperature and humidity
Temperature Humidity Sensor (10).
10. radiator according to claim 9, it is characterised in that the Temperature Humidity Sensor (10) is arranged on described dissipate
Air inlet (2) place of hot device housing.
11. radiator according to claim 9, it is characterised in that the Temperature Humidity Sensor (10) is arranged on described dissipate
Gas outlet (3) place of hot device housing.
12. radiator according to claim 9, it is characterised in that the radiator also includes control unit, the control unit
It is connected with the Temperature Humidity Sensor (10), and the dew point of the gas is determined according to the temperature and humidity of the gas, according to
The refrigerant temperature that the dew point control enters in first evaporator, the first condenser and second evaporator.
13. radiator according to claim 1, it is characterised in that the radiator also includes drip tray (11), described to connect
Water pond (11) is arranged on the bottom of the radiator casing (1).
14. radiator according to claim 1, it is characterised in that the air inlet (2) is located at the radiator casing
(1) bottom, the gas outlet (3) are arranged on the top of the radiator casing (1).
A kind of 15. frequency converter, it is characterised in that including frequency converter shell and the radiator that is arranged in the frequency converter shell,
The radiator is the radiator any one of claim 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861413.2A CN107683068A (en) | 2017-09-21 | 2017-09-21 | Radiator and there is its frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861413.2A CN107683068A (en) | 2017-09-21 | 2017-09-21 | Radiator and there is its frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107683068A true CN107683068A (en) | 2018-02-09 |
Family
ID=61136986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710861413.2A Pending CN107683068A (en) | 2017-09-21 | 2017-09-21 | Radiator and there is its frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107683068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582925A (en) * | 2020-12-11 | 2021-03-30 | 广东电网有限责任公司 | Cooling and dehumidifying device |
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| CN207652863U (en) * | 2017-09-21 | 2018-07-24 | 珠海格力电器股份有限公司 | Radiator and frequency converter with it |
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| JPH01156727U (en) * | 1988-04-20 | 1989-10-27 | ||
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| CN207652863U (en) * | 2017-09-21 | 2018-07-24 | 珠海格力电器股份有限公司 | Radiator and frequency converter with it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582925A (en) * | 2020-12-11 | 2021-03-30 | 广东电网有限责任公司 | Cooling and dehumidifying device |
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