CN102624138A - Novel box-type motor cooling method - Google Patents
Novel box-type motor cooling method Download PDFInfo
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- CN102624138A CN102624138A CN2012100967010A CN201210096701A CN102624138A CN 102624138 A CN102624138 A CN 102624138A CN 2012100967010 A CN2012100967010 A CN 2012100967010A CN 201210096701 A CN201210096701 A CN 201210096701A CN 102624138 A CN102624138 A CN 102624138A
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- heat pipe
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Abstract
The invention discloses a novel box-type motor cooling method. Heat pipes are arranged in a motor; the motor is divided into two relatively isolated spaces by a heat pipe fixing support plate; the upper space of the motor is provided with a water cooling system; and the lower space of the motor is provided with an air cooling system. In the invention, the heat pipes are simple to assemble and stably operate and have high air tightness and the corrosion of the leakage of a heat pipe working medium to the motor is reduced. The heat pipes are vertically arranged, so that the occupied area is reduced, the vertical space is sufficiently utilized, equipment has compact structure and the defects of large volume and high cost of conventional cooling equipment are overcome. On the aspect of the safety, a stable temperature environment exists inside the motor due to the heat pipes, each heat pipe is independent, the damage of one heat pipe cannot influence the work of other heat pipes, the safety environment for working of the motor is maintained, the service life of the motor is prolonged, the maintenance times and cost of the motor are reduced and the economy is saved.
Description
Technical field
Patent of the present invention belongs to box motor cooling technology field, relates in particular to a kind of novel box type motor cooling means.
Background technology
Because the element of motor internal is not a superconductor, therefore in running, can produce loss, these losses comprise square stator and rotor copper loss that changes with electric current; The stator and rotor iron loss that causes by magnetic hysteresis and eddy current; By the friction of bearing and the caused mechanical loss of friction of wound motor center brush and collector ring; By the high order harmonic component copper loss that induced current produced in rotor in the stator magnetic flux, and the copper loss that when unstable state moves, causes of motor etc.If what the heat that these losses produced was untimely conducts; Will have influence on the normal operation of motor, motor overheating may damage the insulating material of motor; Also may cause the damage of other elements; Shorten the useful life of motor, motor is burnt in even more serious meeting, causes economic loss.The existing type of cooling of motor is generally natural cooling, and is air-cooled, shell water-cooled etc.The patent system of CN200910223835.2 is comparatively complicated, and equipment is more, and cost is higher.The patent of CN201020137549.2 has adopted the heat pipe and the contacted type of cooling of electric machine casing, has reason such as dust covering to cause thermal conduction resistance to increase when heat pipe and housing loose contact or housing, and then causes the radiating effect of heat pipe to reduce.The CN86209409 patent is used for y series motor, adopts air-cooled form, and running can produce noise; The operation of blower fan simultaneously also can increase the consumption of electricity; Can adsorb dust on the blower fan, dust is adsorbed on the heat pipe, influence radiating effect; When ambient temperature is too high, also can influence the heat pipe effect of motor.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of caloric value that makes motor to be transmitted in the surrounding environment fast and go, improved a kind of novel box type motor cooling means of the operational efficiency of motor.
The present invention is a kind of novel box type motor cooling means; In motor, through the heat pipe fixed supported slab heat pipe vertically is installed in above the electric machine casing stator, through the heat pipe fixed supported slab motor is divided into two spaces that isolate relatively, upper space is a water cooling system; Lower space is an air cooling system; Wherein the heat transfer process of water cooling system is: cooling water source enters into reservoir bed through water pipe by cooling water intake, and the water of reservoir bed forms liquid film through nozzle and flows down along heat pipe wall, makes cooling water and the abundant heat exchange of heat pipe top condensation end; Working media condensing reflux in the heat pipe is to the lower end evaporation ends; Under the effect of cooling water, the heat of heat pipe lower end evaporation ends is taken away, the cooling water that has absorbed heat is pooled to cooling water outlet, and discharges through water pipe; The heat transfer process of air cooling system is: through the internal fan of rotor two ends installation; Hot-air is laterally skimmed over the lower end evaporation ends of heat pipe; Make the abundant heat exchange of hot-air and evaporation ends, the working media in the heat pipe evaporates because of the heat that absorbs hot-air, thereby hot-air is cooled off; After the temperature that Hot air quilt is cooled to require; Forced convertion effect through internal fan makes the air after the cooling from the gap of rotor and stator, flow through, and rotor and stator are cooled off, and guarantees it and in the safe temperature scope, works.
Heat pipe is vertical placement, has reduced floor space, has made full use of vertical direction spatial, makes compact equipment, has overcome the shortcoming that conventional cooling device is bulky, involve great expense.Aspect fail safe; Because heat pipe makes the inside of motor that a comparatively stable temperature environment arranged, each heat pipe is separate, and the damage of one of them heat pipe does not influence the work of other heat pipes; Kept the security context of machine operation; Prolong the useful life of motor, reduced the maintenance frequency and the expense of motor, practiced thrift economy.
The assembling of heat pipe is simple, stable among the present invention, and the air-tightness of heat pipe has reduced the corrosion of the leakage of heat-pipe working medium to motor than higher.
In order to improve the heat exchange efficiency of heat pipe, the higher fin of conductive coefficient is installed on selected heat pipe outer wall, let cooling water water formed liquid film simultaneously and flow down along heat pipe through nozzle.
Description of drawings
Accompanying drawing is the schematic flow sheet of a kind of novel box type motor cooling means of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done to describe in detail.
Shown in accompanying drawing, the type of cooling that the present invention adopts air-cooled and water-cooled to combine vertically is installed in heat pipe 1 above electric machine casing 8 internal stators 6 through heat pipe fixed supported slab 10 in motor; Through heat pipe fixed supported slab 10 motor is divided into two spaces that isolate relatively; Upper space is a water cooling system, and lower space is an air cooling system, and wherein the heat transfer process of water cooling system is: cooling water source enters into reservoir bed 3 through water pipe by cooling water intake 2; The water of reservoir bed 3 forms liquid film through nozzle 11 and flows down along heat pipe 1 wall; Make cooling water and the abundant heat exchange of heat pipe top condensation end, the working media condensing reflux in the heat pipe is taken away the heat of heat pipe lower end evaporation ends under the effect of cooling water to the lower end evaporation ends; The cooling water that has absorbed heat is pooled to cooling water outlet 9, and discharges through water pipe; The heat transfer process of air cooling system is: through the internal fan 4 of rotor two ends installation; Hot-air is laterally skimmed over the lower end evaporation ends of heat pipe; Make the abundant heat exchange of hot-air and evaporation ends, the working media in the heat pipe evaporates because of the heat that absorbs hot-air, thereby hot-air is cooled off; After the temperature that Hot air quilt is cooled to require; Forced convertion effect through internal fan makes the air after the cooling from the gap of rotor 5 and stator 6, flow through, and rotor and stator are cooled off, and guarantees it and in the safe temperature scope, works.The fixed support of heat pipe adopts anticorrosion, high, the higher material of intensity of heat conductivility.Preferably on the heat pipe fixed supported slab, be provided with the drainage trough with gradient, the cooling water that has absorbed heat in the water cooling system is pooled to cooling water outlet through drainage trough.Guarantee the smooth discharge of cooling water,
In the device of realizing this method, the place that the heat pipe fixed supported slab contacts with heat pipe is provided with the tight contact of rubber blanket of waterproof, also wants tight contact in the place that fixed support contacts with electric machine casing, guarantees the tightness of water cooling system.Internal fan 4 can be installed on the support 7.
Preferably on the heat pipe wall of described heat pipe, fin being housed is beneficial to motor radiating.
One, model and the Installation and Debugging of at first confirming heat pipe according to the power and the bulk of motor.For example in bulk: W * H * L=1020 * 603 * 1595mm, heat exchange of heat pipe place use vertically, and spatial altitude is 603mm, and promptly the height of contour of heat exchange of heat pipe should be selected the long heat pipe of 500mm for use less than 600mm, and then height of contour is that 580mm is suitable.The best Energy Efficiency Ratio water speed of heat exchange of heat pipe is about 2.5m/s, and under the constant situation of other conditions, water speed is low more, and efficient is high relatively more, so it is comparatively suitable between the fast 2.0m/s-2.5m/s to fetch water, according to power of motor, can draw heat pipe width 800mm.The model that is heat exchange of heat pipe is KLS 5*800.Under suitable water speed, select 6 heat extraction heats exchange of heat pipe, heat recovery efficiency is 60%, selects 8 heat extraction heats exchange of heat pipe, heat recovery efficiency is 65%.So select 8 rows'.
Two, normal operation is implemented.Ambient temperature is about 40 ℃, and the motor operation guarantees that blower fan moves under only wind speed.The iron core heating causes the air in the motor to be increased to 85 ℃, if untimely cooling can cause temperature higher, influences the operate as normal of motor.
The heat pipe 1 that in motor, will have a fin through heat pipe fixed supported slab 10 vertically is installed in above electric machine casing 8 internal stators 6; Through heat pipe fixed supported slab 10 motor is divided into two spaces that isolate relatively; Upper space is a water cooling system, and lower space is an air cooling system, and wherein the heat transfer process of water cooling system is: cooling water source enters into reservoir bed 3 through water pipe by cooling water intake 2; The water of reservoir bed 3 forms liquid film through nozzle 11 and flows down along heat pipe 1 wall; Make cooling water and the abundant heat exchange of heat pipe top condensation end, the working media condensing reflux in the heat pipe is taken away the heat of heat pipe lower end evaporation ends under the effect of cooling water to the lower end evaporation ends; The cooling water that has absorbed heat is pooled to cooling water outlet 9 through drainage trough, and discharges through water pipe; The heat transfer process of air cooling system is: through the internal fan semi-finals system convection current that install at the rotor two ends, interior wind path fan operate as normal air quantity is 1m
3/ s; Internal fan laterally skims over the lower end evaporation ends of heat pipe with hot-air, makes the abundant heat exchange of hot-air and evaporation ends, thereby the wind path leaving air temp is 48 ℃ in making; Working media in the heat pipe evaporates because of the heat that absorbs hot-air; Thereby hot-air is cooled off, after the temperature that Hot air quilt is cooled to require, from the gap of rotor 5 and stator 6, flow through through the air after the feasible cooling of the forced convertion effect of internal fan; Rotor and stator are cooled off, guaranteed that interior wind path work temperature rise control is in 20-25 ℃ of scope.
Claims (3)
1. novel box type motor cooling means; It is characterized in that: in motor, through the heat pipe fixed supported slab heat pipe vertically is installed in above the electric machine casing internal stator, through the heat pipe fixed supported slab motor is divided into two spaces that isolate relatively, upper space is a water cooling system; Lower space is an air cooling system; Wherein the heat transfer process of water cooling system is: cooling water source enters into reservoir bed through water pipe by cooling water intake, and the water of reservoir bed forms liquid film through nozzle and flows down along heat pipe wall, makes cooling water and the abundant heat exchange of heat pipe top condensation end; Working media condensing reflux in the heat pipe is to the lower end evaporation ends; Under the effect of cooling water, the heat of heat pipe lower end evaporation ends is taken away, the cooling water that has absorbed heat is pooled to cooling water outlet, and discharges through water pipe; The heat transfer process of air cooling system is: through the internal fan of rotor two ends installation; Hot-air is laterally skimmed over the lower end evaporation ends of heat pipe; Make the abundant heat exchange of hot-air and evaporation ends, the working media in the heat pipe evaporates because of the heat that absorbs hot-air, thereby hot-air is cooled off; After the temperature that Hot air quilt is cooled to require; Forced convertion effect through internal fan makes the air after the cooling from the gap of rotor and stator, flow through, and rotor and stator are cooled off, and guarantees it and in the safe temperature scope, works.
2. novel box type motor cooling means according to claim 1 is characterized in that: on the heat pipe wall of described heat pipe, fin is housed.
3. novel box type motor cooling means according to claim 1 and 2 is characterized in that: on the heat pipe fixed supported slab, be provided with the drainage trough with gradient, the described cooling water that has absorbed heat is pooled to cooling water outlet through drainage trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100967010A CN102624138A (en) | 2012-04-01 | 2012-04-01 | Novel box-type motor cooling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100967010A CN102624138A (en) | 2012-04-01 | 2012-04-01 | Novel box-type motor cooling method |
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| CN102624138A true CN102624138A (en) | 2012-08-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798035A (en) * | 2021-04-09 | 2021-05-14 | 禾美(浙江)汽车股份有限公司 | Condensate water resistance performance test system and method for new energy automobile driving motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209409U (en) * | 1986-11-10 | 1987-12-16 | 湘潭大学 | Y series motor hot tube cooling system |
| CN1989679A (en) * | 2004-07-20 | 2007-06-27 | 波峰实验室责任有限公司 | Dynamoelectric machine with embedded heat exchanger |
| CN200980023Y (en) * | 2006-08-01 | 2007-11-21 | 唐大勇 | An electric generator with high efficiency and energy saving |
| CN201682374U (en) * | 2010-03-19 | 2010-12-22 | 深圳大学 | Motor cooling device for cooling with heat pipe |
| CN101997363A (en) * | 2009-08-20 | 2011-03-30 | 杭州银轮科技有限公司 | Cooler of heat pipe type wind generating set |
| CN102142736A (en) * | 2011-02-23 | 2011-08-03 | 中科盛创（青岛）电气有限公司 | Half-direct-drive wind driven generator with dual-end cover water jacket cooling structure |
-
2012
- 2012-04-01 CN CN2012100967010A patent/CN102624138A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209409U (en) * | 1986-11-10 | 1987-12-16 | 湘潭大学 | Y series motor hot tube cooling system |
| CN1989679A (en) * | 2004-07-20 | 2007-06-27 | 波峰实验室责任有限公司 | Dynamoelectric machine with embedded heat exchanger |
| CN200980023Y (en) * | 2006-08-01 | 2007-11-21 | 唐大勇 | An electric generator with high efficiency and energy saving |
| CN101997363A (en) * | 2009-08-20 | 2011-03-30 | 杭州银轮科技有限公司 | Cooler of heat pipe type wind generating set |
| CN201682374U (en) * | 2010-03-19 | 2010-12-22 | 深圳大学 | Motor cooling device for cooling with heat pipe |
| CN102142736A (en) * | 2011-02-23 | 2011-08-03 | 中科盛创（青岛）电气有限公司 | Half-direct-drive wind driven generator with dual-end cover water jacket cooling structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798035A (en) * | 2021-04-09 | 2021-05-14 | 禾美(浙江)汽车股份有限公司 | Condensate water resistance performance test system and method for new energy automobile driving motor |
| CN112798035B (en) * | 2021-04-09 | 2021-07-23 | 禾美(浙江)汽车股份有限公司 | Condensate water resistance performance test system and method for new energy automobile driving motor |
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Application publication date: 20120801 |