CN101262755A - A cooling method for electric appliance unit of dynamic device - Google Patents
A cooling method for electric appliance unit of dynamic device Download PDFInfo
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- CN101262755A CN101262755A CNA2008100236220A CN200810023622A CN101262755A CN 101262755 A CN101262755 A CN 101262755A CN A2008100236220 A CNA2008100236220 A CN A2008100236220A CN 200810023622 A CN200810023622 A CN 200810023622A CN 101262755 A CN101262755 A CN 101262755A
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Abstract
The invention relates to a method for cooling an electrical appliance unit of a power device, which is characterized in that a liquid pump, a liquid cooling cavity for the electrical appliance unit and a radiator are connected in sequence through a liquid flowing pipe to form a liquid cooling loop; a primary filter screen, an air cooling cavity for the electrical appliance unit and an air cleaner are connected with an engine in sequence to form an air cooling path. The engine drives a liquid pump, so that cooling liquid flows in a circulative way in the liquid cooling loop; meanwhile, a fan blows at the radiator to bring away the heat in the cooling liquid, thereby realizing liquid cooling for the electrical appliance unit; when the engine inhales air, the pumping function of a piston inhales the cold air outside into the air cooling path from the primary filter screen, and when flowing through the air cooling cavity for the electrical appliance unit, the cold air absorbs heat from the surfaces of the electrical appliance unit and the liquid cooling cavity and enters a cylinder of the engine to participate in the burning process. By integrating the air cooling and the liquid cooling, the method of the invention can enhance the cooling effect for an electrical appliance unit that gives out heat, improve the working environment of the electrical appliance unit and improve working efficiency.
Description
Technical field
The present invention relates to a kind of cooling means of electric appliance unit of dynamic device, specifically a kind of dynamic hydraulic combined cooling means of the electric appliance unit by engine-driven power set.
Background technology:
By engine-driven power set, especially use frequency converter to carry out the power set of controlling electric energy, its electric appliance unit can produce more heat at work, therefore must effectively cool off it.
Two kinds of types of cooling of the general employing of prior art, a kind of is the recirculated water cooling, comprise water pump, circulation water channel, electric appliance unit waterway, radiator etc., water pump pressurizes to cooling water, make it to take away heat by the conductive sole plate in the electric appliance unit waterway, the radiator of flowing through then descends coolant water temperature, reenters water pump again, so repeatedly, belong to closed cycle; Another kind is air cooling, comprises cooling fan, air-guiding aisle, electric appliance unit fin etc., and fan is introduced air-guiding aisle with the cold air in the external world, blows over the fin of electric appliance unit to take away heat, belongs to the open type cooling.
Above-mentioned technology is selected one by two usually, uses in different occasions.In the prior art, above-mentioned electric appliance unit generally all has a circuit board, various electric elements are installed or welded to one side of circuit board, opposite side and the conductive sole plate with the circuit board insulation are made one, the side that conductive sole plate deviates from electric elements is provided with cooling water cavity or fin, the heat that produces during electric elements work passes to cooling water cavity or fin by conductive sole plate, and be cooled water or cooling air are taken away.As if but in fact, the surface of electric elements also is the approach that heat is dispersed, and about this point, has been ignored by the people.
Summary of the invention
The objective of the invention is to overcome the weak point of above-mentioned technology, a kind of cooling means of electric appliance unit of dynamic device is provided, utilizes the dynamic hydraulic combined cooling system, can further strengthen cooling effect the heating electric appliance unit, improve its operational environment, increase work efficiency.
Main solution of the present invention is achieved in that
A kind of cooling system of electric appliance unit of dynamic device, comprise electric appliance unit, electric appliance unit liquid cooling chamber, liquid pump, radiator, electric appliance unit air cooling chamber, elementary filter screen, engine, engine blower, engine air filter etc., electric appliance unit and electric appliance unit liquid cooling chamber are surrounded by electric appliance unit air cooling chamber.Liquid pump, electric appliance unit liquid cooling chamber, radiator circulated in turn by fluid pipe connect and compose the liquid cooling loop of electric appliance unit; Elementary filter screen, electric appliance unit air cooling chamber, engine air filter, engine are connected and composed in turn the air cooling path of electric appliance unit; Liquid cooling loop and air cooling path constitute the dynamic hydraulic combined cooling system of electric appliance unit of dynamic device jointly.
The cooling system of above-mentioned this electric appliance unit of dynamic device, the cooling means of employing air cooling and liquid cooling parallel running, its job step is respectively:
1, liquid cooling:
A, use the motor driven liquid pump, liquid circulation is constantly flowed, the cooling fluid in the electric appliance unit liquid cooling chamber of flowing through absorbs the heat that electric appliance unit distributed;
B, the cooling fluid that temperature behind the absorption heat of electric appliance unit liquid cooling chamber outflow is risen import radiator;
C, utilize engine blower to brush radiator to take away heat in the cooling fluid and make it cooling;
Cooling fluid after d, temperature descend comes back to liquid pump and participates in circulation next time.
2, air cooling:
A, the pump-absorb action of piston when utilizing engine running suck electric appliance unit air cooling chamber with cold air from elementary filter screen;
The cold air that b, process are filtered is blown over the outer surface belt in electric appliance unit and electric appliance unit liquid cooling chamber and is walked heat;
The air in c, outflow air cooling chamber enters engine air filter and filters once more;
D, enter cylinder from the air of air filter and participate in burning;
E, burnt gas are discharged cylinder.
Two kinds of refrigerating modes of above-mentioned liquid cooling and air cooling are along with the running of engine takes place simultaneously.
The working media of described liquid cooling can be a water, also can be oil.
Described power set can be the variable-frequency power generation units, also can be motor vehicle driven by mixed powers.
Compared with the prior art the present invention has the following advantages:
The getter action of piston when making full use of engine operation, under the prerequisite that does not increase fan in addition, the electric appliance unit of dynamic device that stands liquid cooling is implemented air cooling again, can further improve the operational environment of electric appliance unit, reduce working temperature, improve work efficiency, simultaneously can also avoid having remarkable energy saving effect because of installing the secondary power loss that fan brings additional; Elementary filter screen can guarantee the cleaning on electric appliance unit surface, avoids because dirt adheres to the apparatus failure of initiation and goes mouldy.
Description of drawings
Fig. 1 is an operation principle schematic diagram of the present invention.
Fig. 2 is the schematic perspective view that electric appliance unit and liquid cooling chamber thereof are contained in electric appliance unit air cooling of the present invention chamber.
Fig. 3 is the longitudinal profile schematic diagram of Fig. 2.
Fig. 4 removes the K in later electric appliance unit liquid cooling chamber to view with electric appliance unit air cooling chamber among Fig. 3.
Fig. 5 is the A-A cutaway view among Fig. 4.
Fig. 6 is the B-B cutaway view among Fig. 4.
Fig. 1～shown in Figure 6: comprise electric appliance unit 1, liquid pump 2, electric appliance unit liquid cooling chamber 3, radiator 4, elementary filter screen 5, electric appliance unit air cooling chamber 6, air filter 7, engine 8, fan 9, bolt 10, nut 11, cooling water inlet 301, coolant outlet 302, liquid cooling chamber end face 303, bottom surface, liquid cooling chamber 304, dividing plate 305, hangers 306, liquid cooling passage 307, casing 601, chamber door 602, door lock 603, cooling air outlet 604, sealing ring 605, bearing 606.
Embodiment
As shown in Figure 1, in a kind of cooling system of electric appliance unit of dynamic device, electric appliance unit 1 is on two cooling routes simultaneously, is subjected to the cooling of uniting of gas, two kinds of patterns of liquid.
On the liquid cooling circulation route, circulate in turn by fluid pipe between liquid pump 2, electric appliance unit liquid cooling chamber 3, radiator 4 threes and connect and compose liquid cooling loop, engine blower 9 and radiator 4 positioned opposite.
During system works, 2 pairs of cooling fluid pressurizations of liquid pump, make it in the loop, constantly to circulate, when cooling fluid process electric appliance unit liquid cooling chamber 3, and between the electric appliance unit 1 heat exchange takes place, cooling fluid has been accepted the heat that electric appliance unit 1 is distributed, temperature raises, flow through radiator 4 subsequently, temperature rise takes place in the heat-dissipating fin of radiator 4 thereupon, at this moment, engine-driven fan 9 is ceaselessly to radiator 4 blowings, the lower cold wind of temperature with the higher heat sink fins generation heat exchange of temperature after, carry heat and be discharged in the atmosphere, so, coolant temperature in the radiator 4 descends, the cooling fluid that has been cooled enters liquid pump 2 once more, thereby begins next cool cycles, the continuous firing of so going round and beginning again.
On the air cooling circulation route, elementary filter screen 5, electric appliance unit air cooling chamber 6, air filter 7, engine connect and compose the air cooling path in turn by gas channel between 8 all unit.
During system works, the descending pump-absorb action of engine piston sucks electric appliance unit air cooling chambeies 6 with the cold air in the external world from elementary filter screen 5, blow over electric appliance unit 1 and 3 surfaces, electric appliance unit liquid cooling chamber here, (wind that engine blower 9 blows to radiator 4 is carrying the heat that distribute on engine 8 surfaces because the temperature of cool ambient air is lower than the surface temperature in electric appliance unit liquid cooling chamber 3, temperature is higher than extraneous cold air, determined the surface temperature in electric appliance unit liquid cooling chamber 3 must be higher than the cold air that directly sucks thus) from the external world, so when it passes through electric appliance unit air cooling chamber 6, can further implement cooling to the outer surface in electric appliance unit 1 and electric appliance unit liquid cooling chamber 3, after cold air flows out electric appliance unit air cooling chamber 6, cylinder participation combustion reaction by the air filter 7 of engine enters engine 8 becomes burnt gas subsequently and discharges.
Above-mentioned liquid cooling circulation circuit and air cooling peripheral passage have constituted the dynamic hydraulic combined cooling system of electric appliance unit of dynamic device together; Two kinds of refrigerating modes of liquid cooling and air cooling are along with the engine entry into service takes place simultaneously.
Fig. 2～Fig. 6 is a specific embodiment of the present invention.
In the perspective view of Fig. 2, electric appliance unit 1 and electric appliance unit liquid cooling chamber 3 are surrounded by electric appliance unit air cooling chamber 6, electric appliance unit air cooling chamber 6 has a casing 601, casing 601 has a chamber door 602 that has hinge and door lock 603 in the side over against electric appliance unit 1, the top of casing 601 is provided with a cooling air outlet 604, be integrated in the bottom (see figure 3) of casing 601 as the elementary filter screen 5 of air cooling medium air inlet, cooling water inlet 301 that communicates with electric appliance unit liquid cooling chamber 3 and coolant outlet 302 pass the hole that casing 601 sidewalls leave respectively and reach outside the casing 601, passing the position also is provided with sealing ring 605 and plays the hermetic seal effect, chamber door 602 peripheries are provided with sealing strip (not drawing among the figure) with casing 601 junctions, and are air tight in the time of guaranteeing chamber door 602 by door lock 603 lockings.Like this, cooling air can only suck from elementary filter screen 5, discharge from cooling air outlet 604, guaranteed that cooling air flows through electric appliance unit 1 and electric appliance unit liquid cooling chamber 3 according to suitable direction surface implements effectively cooling to their, the cleaning of 6 inside, electric appliance unit air cooling chamber has also been guaranteed in the setting of elementary filter screen 5 simultaneously.
By Fig. 3, Fig. 4 as seen, one is become in electric appliance unit 1 and electric appliance unit liquid cooling chamber 3, four jiaos of places of bottom surface, liquid cooling chamber 304 are provided with hangers 306 respectively, have bolt hole on it, casing 601 and chamber door 602 are welded with bearing 606 on the relative plane, the quantity of bearing 606 and position are corresponding with aforementioned all hangers 306, four groups of bolts 10, nut 11 and spring washer are fixing to should give one by one with described hangers 306 and bearing 606, the height of bearing 606 makes and leaves suitable gap between bottom surface 304, liquid cooling chamber and the casing 601, also leaves suitable gap between chamber door 602 and the electric appliance unit 1.Fig. 3 has shown the working condition of air cooling circulation, and cold air sucks upwards from the elementary filter screen 5 that is located at 6 bottoms, electric appliance unit air cooling chamber and flows, and heat is taken away on the surface in inswept electric appliance unit 1 and electric appliance unit liquid cooling chamber 3, and 604 flow out through gas outlet, air cooling chamber.Fig. 4 has shown the working condition of liquid cooling circulation time, and cooling fluid enters the liquid cooling passage 307 in liquid cooling chamber from the cooling fluid of 3 bottoms, electric appliance unit liquid cooling chamber inlet 301, through turnover back repeatedly flowing out from cooling liquid outlet 302.Because of the mode with close applying between liquid cooling chamber end face 303 and the electric appliance unit 1 contacts, the heat that electric appliance unit 1 produces is easy to import into liquid cooling chamber end face 303, so this contact side temperature is higher, the another side that deviates from aforementioned contact side because of liquid cooling chamber end face 303 directly contacts with cooling fluid again, so temperature is lower, like this, exists very big temperature gradient in liquid cooling chamber end face 303, the heat that electric appliance unit 1 produces is passed continuously to cooling fluid, thereby does not make himself temperature too high.Be separated into the tortuous liquid cooling passage of arranging 307 by dividing plate 305 in the electric appliance unit liquid cooling chamber 3, this tortuous arrangement can dwindle cross section of fluid channel, accelerate flow velocity, can make cooling fluid in the process of conversion flow direction, produce strong turbulent flow again, promote heat exchange, this all helps improving the transmission effect of heat.And tortuous fluid course arrangement also direct coolant make cooling more abundant with roughly the same flow velocity each corner by electric appliance unit liquid cooling chamber 3.
The A-A section that Fig. 5 shows has all been implemented to dissect to all each bar dividing plates 305 in electric appliance unit liquid cooling chamber 3, has also shown the bolt hole on the hangers 306 simultaneously.Dividing plate 305 intersects vertically with liquid cooling chamber end face 303, has formed the structure that is similar to the pectination fin, and heat flows into dividing plate 305 from liquid cooling chamber end face 303 strengthens the area of cooling fluid contact thermal source, has promoted heat exchange.Dividing plate 305 has also been strengthened the rigidity of liquid cooling chamber end face 303 greatly, helps improving its non-deformability, has guaranteed the close applying of liquid cooling chamber end face 303 with electric appliance unit 1 contact surface, thereby realizes that contact-making surface has less thermal resistance.It is important, compare with the structure at 3 other positions, electric appliance unit liquid cooling chamber, liquid cooling chamber end face 303 has bigger thickness, this makes the thermal capacity of this part and type of thermal communication area bigger, the internal heat conducting power is stronger, thereby make its everywhere temperature difference reduced, have bigger thermal deformation resistant ability.
In Fig. 6, the B-B section can be seen the end face of the part dividing plate 305 that is not cutd open by the return portion of liquid cooling runner 307.
Claims (3)
1, a kind of cooling means of electric appliance unit of dynamic device is characterized in that adopting following job step:
1), liquid cooling:
A, use the motor driven liquid pump, liquid circulation is constantly flowed, the cooling fluid in the electric appliance unit liquid cooling chamber of flowing through absorbs the heat that electric appliance unit distributed;
B, the cooling fluid that temperature behind the absorption heat of electric appliance unit liquid cooling chamber outflow is risen import radiator;
C, utilize engine blower to brush radiator to take away heat in the cooling fluid and make it cooling;
Cooling fluid after d, temperature descend comes back to liquid pump and participates in circulation next time;
2), air cooling:
A, the pump-absorb action of piston when utilizing engine running suck electric appliance unit air cooling chamber with cold air by elementary filter screen;
The cold air that b, process are filtered is blown over the outer surface belt in electric appliance unit and electric appliance unit liquid cooling chamber and is walked heat;
The air in c, outflow air cooling chamber enters engine air filter and filters once more;
D, enter cylinder from the air of air filter and participate in burning;
E, burnt gas are discharged cylinder;
The common dynamic hydraulic combined cooling that constitutes electric appliance unit of dynamic device of f, above-mentioned liquid cooling and air cooling parallel running.
2, the cooling means of a kind of electric appliance unit of dynamic device according to claim 1 is characterized in that described power set can be variable-frequency power generation unit or motor vehicle driven by mixed power.
3, the cooling means of a kind of electric appliance unit of dynamic device according to claim 1, the working media that it is characterized in that described liquid cooling can be water or oil.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100236220A CN101262755B (en) | 2008-04-10 | 2008-04-10 | A cooling method for electric appliance unit of dynamic device |
| PCT/CN2009/000183 WO2009124448A1 (en) | 2008-04-10 | 2009-02-23 | A cooling system of a power installation electrical appliance unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100236220A CN101262755B (en) | 2008-04-10 | 2008-04-10 | A cooling method for electric appliance unit of dynamic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101262755A true CN101262755A (en) | 2008-09-10 |
| CN101262755B CN101262755B (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100236220A Expired - Fee Related CN101262755B (en) | 2008-04-10 | 2008-04-10 | A cooling method for electric appliance unit of dynamic device |
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| CN (1) | CN101262755B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124448A1 (en) * | 2008-04-10 | 2009-10-15 | 无锡开普动力有限公司 | A cooling system of a power installation electrical appliance unit |
| WO2013123774A1 (en) * | 2012-02-23 | 2013-08-29 | 中联重科股份有限公司 | Hybrid hydraulic excavator and cooling system thereof |
| CN107517596A (en) * | 2015-03-25 | 2017-12-26 | 三菱电机株式会社 | Power inverter |
| CN115250609A (en) * | 2022-09-22 | 2022-10-28 | 江苏泽润新材料有限公司 | 2-channel component-level rapid turn-off system receiving device |
| CN117794202A (en) * | 2024-02-26 | 2024-03-29 | 东莞市隆慧电子科技有限公司 | Cabinet combined radiator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505322Y (en) * | 2001-11-16 | 2002-08-14 | 清华大学 | Air cooling device of nickel-hydrogen battery for mixed power vehicle |
| CN100999188A (en) * | 2006-12-28 | 2007-07-18 | 奇瑞汽车有限公司 | Cooling system of mixed power vehicle |
-
2008
- 2008-04-10 CN CN2008100236220A patent/CN101262755B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124448A1 (en) * | 2008-04-10 | 2009-10-15 | 无锡开普动力有限公司 | A cooling system of a power installation electrical appliance unit |
| WO2013123774A1 (en) * | 2012-02-23 | 2013-08-29 | 中联重科股份有限公司 | Hybrid hydraulic excavator and cooling system thereof |
| CN107517596A (en) * | 2015-03-25 | 2017-12-26 | 三菱电机株式会社 | Power inverter |
| CN107517596B (en) * | 2015-03-25 | 2019-11-26 | 三菱电机株式会社 | Power inverter |
| CN115250609A (en) * | 2022-09-22 | 2022-10-28 | 江苏泽润新材料有限公司 | 2-channel component-level rapid turn-off system receiving device |
| CN117794202A (en) * | 2024-02-26 | 2024-03-29 | 东莞市隆慧电子科技有限公司 | Cabinet combined radiator |
| CN117794202B (en) * | 2024-02-26 | 2024-05-14 | 东莞市隆慧电子科技有限公司 | Cabinet combined radiator |
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| Publication number | Publication date |
|---|---|
| CN101262755B (en) | 2010-11-03 |
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Granted publication date: 20101103 Termination date: 20170410 |