CN205248986U - Novel inner loop oil cooling motor - Google Patents

Abstract

The utility model provides a novel inner loop oil cooling motor, includes canned motor main part, coolant oil delivery pump assembly, heat exchanger, cooling fan, coolant oil adjusting device. Its characterized in that: closed inner loop oil cooling motor, be two road binders closed loop cooling circuit of branch respectively to the synchronous cooling of zhou jinhang in motor stator periphery and winding overhang and rotor and the stator, realize the high -efficient cooling to the motor, reach that the size of the electric machine is little, light in weight, energy -efficient purpose.

Description

A kind of Novel internal circulation oil cooling motor

Technical field

The present invention relates to a kind of Novel internal circulation oil cooling motor.

Background technology

At present all adopt single type of cooling for micro-machine cooling, i.e. outer cooling means and internal cooling method, outer cooling be exactly that to adopt wind heat radiation or medium to carry out the shell of motor cooling, then cooling to motor stator and coil by the realization of heat conduction and heat radiation method. In cooling common employing mode that ventilating duct is set in electric machine casing realize cooling to stator and coil. But above-described cooling means all can not meet the requirement of high efficiency cooling, particularly cooling to rotor effectively how, a technical barrier especially, asynchronous machine rotor low-voltage, heavy current warming is high, and synchronous motor stator is also a difficult problem to the radiant heat of rotor. Particularly the development of pure electric automobile is more strict for the requirement of motor at present, efficiently, volume is little, lightweight is current this domain engineering technical staff technical barrier to be solved, thereby how to improve the radiating effect of motor, realizing efficient, little, the lightweight object of volume thereby reach, is a key technology difficult problem.

Summary of the invention

In view of prior art deficiency, the object of the present invention is to provide a kind of Novel internal circulation oil cooling motor.

To achieve these goals, technical scheme of the present invention is: a kind of Novel internal circulation oil cooling motor, comprise enclosed motor main body, cold oil liquid level adjusting device, cold oil delivery pump assembly, heat exchanger, cooling fan, cold oil conveyance conduit, cold oil pipage control valve, the housing of described enclosed motor main body is provided with three sections of circumference chambers, both ends chamber is fan-shaped interlayer chamber, stage casing chamber is hollow chamber, hollow chamber is directly to motor stator outer surface cooling section, in hollow chamber, being provided with several side of body plates and motor stator external diameter fixes, on side of body plate, be provided with cold oil guiding gutter, on the corresponding casing wall of hollow chamber, be provided with oil-in and the oil-out of cold oil, the both ends of side of body plate are provided with respectively circumference dividing plate, the fan-shaped interlayer chamber of hollow chamber and both ends is divided into three sections, on two fan-shaped interlayer chamber internal perisporiums, be provided with and several directly cooling cold oil spray hole carried out in motor stator winding both ends, below the cold oil spray hole of the fan-shaped interlayer chamber in two ends is corresponding, be provided with the oil-out that sprays cold oil.

Further, the stator winding end periphery of described enclosed motor is enclosed with nonmetal reticulate body.

Further, the rear end cap outer of described enclosed motor is fixed with motor cavity chamber cold oil liquid level arrangement for adjusting height.

Advantage of the present invention: it is directly cooling that this technology adopts low viscosity high voltage withstanding cold oil to carry out enclosed motor internal stator periphery and winding overhang, has changed the mode of traditional indirect cooling motor of dependence heat conduction, and good cooling results, realizes high efficiency and heat radiation. The cold oil liquid level arrangement for adjusting height of the remaining liquid level of chamber cold oil in outside motor is provided with motor simultaneously, adjustable cold oil, at the remaining liquid level of motor internal, can be controlled between rotor diameter immersed in liquid level 1～5mm. Like this, when rotor rotates, under the acting in conjunction of the centrifugal force of cold oil surface tension and rotor, realize cooling to stator inner surface, can realize again the effective cooling to motor stator simultaneously. That this invention has directly realized is cooling to the directly sprinkling cooling, winding overhang of stator periphery, rotor portions converts when rotate on surface especially that immersion is cooling, in stator week splash coolingly, and the immersion of part stator is cooling. The multiple type of cooling is common to be produced and the mutual heat exchange of cold oil has realized cooling to electric machine rotor and winding effectively, has reached the object of high efficiency and heat radiation. Not only realized the direct high efficiency and heat radiation to electric machine rotor and winding, the rotor that has particularly solved the cooling upper existence of the current motor difficult technical barrier that dispels the heat, is a kind of technological progress of current motor radiating. Owing to having adopted motor cavity chamber cold oil liquid level arrangement for adjusting height, thereby can control the resistance loss rotor rotating being produced by surface tension, through testing for air-cooled motor, under equal conditions loss also can reduce 30% ~ 70%, due to the minimizing of resistance, the realization of high efficiency and heat radiation, thereby power to weight ratio is largely increased in design of electrical motor, volume also reduces effectively, is a kind of technological progress for the development of current pure electric automobile industry.

Brief description of the drawings

Fig. 1 is but motor configuration principle schematic front view of embodiment of the present invention Novel internal circulation oil cooling.

Fig. 2 is embodiment of the present invention shell structure expanded view.

Fig. 3 is but motor configuration principle schematic A-AB-B echelon sectional view of embodiment of the present invention Novel internal circulation oil cooling

Detailed description of the invention

Below in conjunction with embodiment Fig. 1 and Fig. 2, the present invention is further elaborated.

With reference to figure 1, a kind of Novel internal circulation oil cooling motor, comprise enclosed motor main body 1, cold oil liquid level arrangement for adjusting height 46, cold oil delivery pump assembly 17, heat exchanger 19, cooling fan 18, cold oil carrier pipe 20, cold oil is carried valve 21,22,23, described cold oil liquid level arrangement for adjusting height 46 is fixed on the housing 2 of enclosed motor main body 1, is made up of liquid level adjusting device housing 47, external screw thread oil-in 13, internal thread overflow liquid level adjusting nut 14, oil-out 37 and blow vent 15. Its external screw thread oil-in 13 is connected with the oil-out 11,12 on enclosed type electric engine housing 2. The oil-in of described cold oil delivery pump assembly 17 is connected with the oil-out 10 and the liquor-level regulator oil-out 37 that are arranged on enclosed motor main body 1 housing 2 respectively. The oil-in 39 of described heat exchanger 19 is connected with the oil-out 38 of cold oil delivery pump assembly 17, the oil-out 48 of heat exchanger is connected with the oil-in valve 21,22,23 of enclosed motor main body 1 housing 2 respectively through cold oil carrier pipe 20, regulates and distributes fuel delivery then entered respectively hollow chamber 34 on enclosed motor main body 1 housing 2 and the fan-shaped interlayer chamber 35,36 at both ends by oil-in 8,7,9 through valve 21,22,23. Described cooling fan 18 and heat exchanger 19 combine heat exchanger are carried out to air-cooled work, on the housing 2 of described enclosed motor main body 1, be provided with the fan-shaped interlayer chamber 35,36 at cold oil hollow chamber 34 and both ends, by dividing plate 40,41,42,43, cooling hollow chamber is separated into three sections, hollow chamber 34 combines a hollow chamber space by the external diameter of the internal diameter of casing 2 and stator 3 and dividing plate 40,41, hollow chamber's length and stator 3 are equal in lengthAs Fig. 3Shown in A-A half sectional view in middle A-AB-B elevated view, in hollow chamber, be provided with several circumferentially uniform and be parallel to the side of body plate 45 of axial fixed support along stator 3 external diameters, on the side of body plate 45 of hollow chamber's 34 inner chamber fixed supports, be provided with oil guide groove and illustrate with reference to expanded view 2, guiding gutter is 24,25,26,27,28,29,30,31. The cold oil of the oiler 7 of enclosed motor casing 2 is divided into two tunnels after entering hollow chamber 34, one C of route hollow chamber direction goes out through oil guide groove 28,29,30,31 to oil-out 10, another D of route hollow chamber direction goes out through oil guide groove 27,26,25,24 to oil-out 10, the space of chamber 34 and oil guide groove are combined into the but swapace of oil cooling of a bending like this, directly realize cooling to enclosed motor main body 1 stator 3 external diameters, good cooling results, and can not produce cold oil and import and export short circuit phenomenon, realize high efficiency cooling. The fan-shaped interlayer chamber 36,35 in both ends, for being symmetrical arranged, is provided with several cold oil spray holes 32,33 at 35,36 fan-shaped interlayer chamber inner wall, periphery top corresponding to both ends that its cold oil spray hole is distributed in motor stator winding 5;Fig. 3Shown in B-B half sectional view in middle A-AB-B elevated view, spray, spill the hole local setting of the angle of circumference 130～150o on fan-shaped interlayer chamber 35,36 respectively, separated by sealing floor 44, form two fan-shaped interlayer chambers 35,36. fan-shaped interlayer chamber 35 when cooling, cold oil in 36 is directly respectively by spray hole 32, 33 spray stator winding end 5 tops to stator 3 two ends, then below naturally flowing to end under the effect of gravity, gather, form the remaining liquid level layer 16 of a cold oil, by oil-out 11, 12 go out, realize the directly cooling of stator winding end 5 to stator 3 two ends, the outer of the stator winding end 5 at stator 3 two ends of described enclosed motor is provided with high pressure resistant non-conductive reticulate body 6, this setting not only can realize stator winding end 5 is sprayed, spill the protective effect that oily sprinkling is encroached on stator winding end 5, and can play again absorption and fix the effect that cold oil prolongation heat exchanger time available heat exchanges, so that realize the more fully heat exchange of cold oil to stator winding end 5, reach the object of high efficiency and heat radiation.

Specific implementation method: work at cold oil pump housing assembly 17 when enforcement, cold oil enters heat exchanger 19 through carrier pipe 20, under the effect of cooling fan 18, heat exchanger is dispelled the heat, realize the heat exchange to cold oil, through cooled cold oil through pipeline 20 at valve 21, 22, under 23 effect, realize enclosed motor main body 1 housing 2 oil-ins 8, 7, 9 assignment of traffic fuel feeding, the cooling route oil-in 8 in Fen Er road, 9 input cold oil respectively the fan-shaped interlayer chamber 36 of electric machine casing 2, 35, then through spraying mouth 33, 32 spray cooling to the stator winding end 5 at motor internal stator 3 two ends, under the effect of gravity, be collected at motor cavity bottom, form remaining liquid level layer 16, the height of its remaining liquid level layer 16 is under the effect of cold oil liquid level arrangement for adjusting height 46, can change the height of the remaining liquid level layer 16 of cold oil in enclosed motor chamber, produce the different types of cooling, in the time controlling the remaining liquid level layer 16 of cold oil in the horizontal installation of motor, rotor 4 external diameter lower bottom parts immerse between cooling fluid 1-5mm, at this moment the local cooling fluid that immerses of motor stator 3, rotor rotates and produces the edge oil that splashes of tangential direction around, realized the cooling of and stator 3 interior perimeter surface surperficial to rotor 4 simultaneously, in the time controlling remaining liquid level layer 16 height of cold oil lower than the horizontal installation rotor of motor lower bottom part external diameter, do not produce the cooling effect that splashes, in the time that not being flat sleeping installation, motor all can adjust liquid level according to different situations, to regulate rotor 4 and the mutual rotary resistance of cold oil, then cold oil is from oil-out 12, 11 adjustings through cold oil liquid level arrangement for adjusting height 46 enter cold oil pump housing assembly 17 from the oil-out 37 of cold oil liquid level arrangement for adjusting height 46, realize closed loop cooling, two route enclosed motor main body 1 housing 2 oil-ins 7 enter the C of hollow chamber, D two-way, C route oil-in 7 influent streams, after guiding gutter 28,29,30,31, gone out by oil-out 10, D road, after guiding gutter 27,26,25,24, is gone out by oil-out 10, and two-way cold oil is all gone out by oil-out 10, after enter cold oil delivery pump assembly 17, realize two tunnel closed loops cooling.

Claims (3)

1. a Novel internal circulation oil cooling motor, comprise enclosed motor main body (1), cold oil delivery pump assembly (17), heat exchanger (19), cooling fan (18), it is characterized in that: the housing (2) in described enclosed motor main body is provided with three sections of circumference chambers one (36), circumference chamber two (34), circumference chamber three (35), stage casing is hollow chamber (34), backside segments is fan-shaped interlayer chamber (36), toe lateral section is fan-shaped interlayer chamber (35), hollow chamber (34) is directly to motor stator outer round surface cooling section, in hollow chamber (34), be provided with several side of body plates (45) and stator (3) external diameter fixes, on side of body plate (45), be provided with cold oil guiding gutter one (28), cold oil guiding gutter two (29), cold oil guiding gutter three (30), cold oil guiding gutter four (31), cold oil guiding gutter five (27), cold oil guiding gutter six (26), cold oil guiding gutter seven (25), cold oil guiding gutter eight (24), on the corresponding housing of hollow chamber (34) (2) wall, be provided with cold oil oil-in (7) and oil-out (10), the both ends of side of body plate (45) are provided with circumference dividing plate one (41), circumference dividing plate two (42), by the fan-shaped interlayer chamber one (36) of hollow chamber (34) and both ends, fan-shaped interlayer chamber two (35) is divided into three sections of not connected chambers, at the two fan-shaped interlayer chambers one (36) in end, on the internal perisporium of fan-shaped interlayer chamber two (35), be provided with and severally motor stator (3) winding overhang (5) is carried out to cold oil spray cooling spray hole one (32), spray hole two (33), at two fan-shaped interlayer chambers one (36), the spray hole one (32) of fan-shaped interlayer chamber two (35), the corresponding lower quadrate part of spray hole two (33) is provided with oil-out one (11), oil-out two (12).

2. a kind of Novel internal circulation oil cooling motor according to claim 1, it is characterized in that: on the housing (2) of described enclosed motor main body (1), be provided with motor cavity chamber cold oil liquid level arrangement for adjusting height (46), described cold oil liquid level arrangement for adjusting height (46) by housing (47), gas vent (15), be with externally threaded oil-in (13), internal thread overflow liquid level adjusting nut (14), oil-out (37) to form, the remaining cooling liquid level in rotating internal thread overflow liquid level adjusting nut (14) capable of regulating motor cavity chamber.

3. a kind of Novel internal circulation oil cooling motor according to claim 1, is characterized in that: the periphery at the stator winding both ends (5) of described enclosed motor main body (1) is enclosed with nonmetal reticulate body (6).