CN202503406U - Permanent-magnet synchronous motor of two-stage heat exchanger cooling - Google Patents
Permanent-magnet synchronous motor of two-stage heat exchanger cooling Download PDFInfo
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- CN202503406U CN202503406U CN201220114651XU CN201220114651U CN202503406U CN 202503406 U CN202503406 U CN 202503406U CN 201220114651X U CN201220114651X U CN 201220114651XU CN 201220114651 U CN201220114651 U CN 201220114651U CN 202503406 U CN202503406 U CN 202503406U
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Abstract
The utility model relates to a permanent-magnet synchronous motor of two-stage heat exchanger cooling. The permanent-magnet synchronous motor comprises a rotor component, an air-out end cover component, a base component, an air-in end cover component and a water-proof cover. An air inlet is arranged on the air-in end cover component and is connected with a compressed air source; and compressed air is used as a cooling medium. The compressed air flows through the air-in end cover component, the rotor component and the air-out end cover component; a spiral heat exchange tube as a first-stage heat exchanger conducts heat generated by permanent magnetic steels and a rotor magnet yoke to a spindle; spiral grooves of the spindle and a mandrel form a second-stage heat exchanger; and the compressed air carries the heat to the outside of the motor and is jetted to a venture by nozzle holes of the air-out end cover component; a primary inducing air flow and a secondary inducing air flow are generated in an air passage formed by an air passage cover plate and radiating fins; cooling is carried out on the base component; and heat generated by stator copper loss generated by a stator winding and stator iron loss generated by a stator iron core are also carried to the outside of the motor.
Description
Technical field
The present invention is a kind of permanent magnet synchronous motor of two-stage heat exchanger cooling, and it relates to a kind of motor that is applied in the plant equipment, particularly relates to a kind of permanent magnet synchronous motor of two-stage heat exchanger cooling.
Background technology
In permanent magnet synchronous motor,, often ignore the eddy current loss in the rotor because rotor and stator field rotate synchronously.In fact, the Harmonic Magnetic kinetic potential that harmonic current produced in the stator tooth effect of grooves, the magnetomotive non-sine distribution of winding and the winding also can cause eddy current loss in rotor permanent magnet and rotor yoke.Although compare with iron loss with the stator copper loss, rotor eddy current loss is very little,, the rotor radiating condition is bad, and eddy current loss possibly cause very high temperature rise, thereby causes the permanent magnet demagnetization.Compare with the ferrite permanent-magnet materials that small power motor is adopted, the Nd-Fe-Bo permanent magnet material that high power motor adopted has bigger conductivity and lower Curie temperature, and permanent magnet synchronous motor is scrapped because of the permanent magnet demagnetization.
In the high-power permanent magnet synchronous motor, generally adopt the surface-mount type rotor, the permanent magnet of tile shape sticks on rotor surface.Wherein common real core permanent-magnet synchronous motor rotor, because the rotor yoke sectional area is big, the eddy current loss that is produced is big, less the employing.Common ring-type hollow permanent magnetism synchronous electric motor rotor, the rotor yoke sectional area is less, and the eddy current loss that is produced is also less, but the heat that rotor permanent magnet and rotor yoke are produced is difficult to conduct through rotating shaft.Degree of protection is higher, particularly requires explosion-proof motor, and its rotor and stator winding all are enclosed in the airtight space, and the rotor radiating condition is more abominable.
Summary of the invention
It is bad to the objective of the invention is to overcome common surface-mount type permanent-magnet synchronous motor rotor radiating condition, the defective of scrapping because of the permanent magnet demagnetization easily, the permanent magnet synchronous motor that provides a kind of two-stage heat exchanger to cool off.Embodiment of the present invention are following:
The total characteristic of the present invention is that the permanent magnet synchronous motor of two-stage heat exchanger cooling is made up of rotor part, outlet side cover, support component, inlet end cover and tarpaulin.Outlet side cover and inlet end cover are installed in the two ends of support component respectively; Rotor part is installed on the axis of outlet side cover, support component and inlet end cover; Tarpaulin is installed in an end of rotor part, and the other end is processed with the output shaft keyway for the output axle head; The wire casing of going out is arranged on the support component, on the inlet end cover air inlet is arranged.
Air inlet connects compressed gas source, and the employing Compressed Gas is a coolant.Compressed Gas passes from inlet end cover, rotor part and outlet side cover.Be transmitted to the heat that permanent magnet magnet steel and rotor yoke are produced in the rotating shaft as the spiral heat exchange tube of first-class heat exchanger; The helical groove of rotating shaft and mandrel are formed secondary heat exchanger; Bring to heat outside the motor by Compressed Gas; Compressed Gas is injected in the Venturi tube through the nozzle bore of outlet side cover, in the air flue that air flue cover plate and fin are formed, produces induced draft and chain induction air-flow; Support component is cooled off, also bring to the heat of the stator iron loss of the stator copper loss of stator winding generation and stator core generation outside the motor.Package strip and case chip are used to seal the hole of leaving over after the machining.
Rotor part is welded together by rotating shaft, rotor end plates and rotor yoke, pastes several permanent magnet magnet steel successively at the rotor yoke outer surface, forms the rotor field.In the annular space that rotating shaft, rotor end plates and rotor yoke are formed, spiral heat exchange tube and rotary piston sealing ring are installed.
Filling work medium for heat pipe in the spiral heat exchange tube, rotary piston sealing ring makes this annular space airtight, even spiral heat exchange tube is revealed working media, also can not flow in the stator winding, thereby avoid destroying winding insulation.
Several heat exchanger tube location notchs one of outer surface distribution in the middle of the rotating shaft; The two ends of rotating shaft outer surface are equipped with bearing, and mandrel is installed in the center cavity of rotating shaft, uses cylindrical pin with internal thread; Through the pin-and-hole one of rotating shaft one end, be connected fixing with the pin-and-hole two of mandrel one end respectively.Respectively there is a rotating shaft sealing circle groove at two ends in the center cavity of rotating shaft; Be used for the mounting core Simmer ring; Respectively there is an escape inboard of each rotating shaft sealing circle groove; Having helical groove to link to each other between two escapes, a through hole is respectively arranged on each escape, is respectively rotor venthole and rotor air admission hole.
Compressed Gas flow through rotor air admission hole, escape, helical groove, escape, rotor venthole constitute the secondary heat exchanger passage.
Rotor yoke is a cylindrical shape, inner surface several heat exchanger tube location notchs two that distribute, rotor end plates is an annular, mandrel be one cylindrical, mandrel one end has the installing hole of two internal threads.The permanent magnet magnet steel is a tile shape.
Spiral heat exchange tube is made up of helical bundle and three-way pipe.Helical bundle is twined by metal tube to be processed, and every circle is wound in rectangle, twines some circles, and every circle is evenly distributed along rotor axis, forms annular, and it is end to end to restrain port.Straight-through two ports of three-way pipe are connected with the tube bank port, and welded seal, and the 3rd port is liquid injection port, and behind the filling work medium for heat pipe, flatten with pressing tongs at the place at press seal in the spiral heat exchange tube, and at the liquid injection port welded seal.
The cross section of rotary piston sealing ring is L-shaped; Surfaces externally and internally respectively has a groove; O-ring seals one and O-ring seals two are installed respectively; Internal thread hole on the rotary piston sealing ring is equipped with holding screw and nut, is fixed on rotary piston sealing ring in the rotating shaft, and the inner chamber of the sealing ring sleeve pipe on the rotary piston sealing ring is used to hold the liquid injection port of spiral heat exchange tube.
The inlet end cover is made up of annular cover plate, air inlet end cap, end cap seal circle, lip-type packing, pressure ring, circlip for hole and case chip, is installed in an end of support component through screw, seals with the end cap seal circle.Middle inner surface at the air inlet end cap has an annular cavity; From outer surface to the annular cavity of air inlet end cap several through holes that evenly distribute; Intercommunicating pore and outer intercommunicating pore in through hole is separated into by cannelure; The outside one end of each outer intercommunicating pore has a circular groove, and case chip is installed and is welded with in the outside of groove.A pipe joint is arranged on the annular cover plate, and this pipe joint is an air inlet, and annular cover plate is welded on the cannelure of air inlet end cap.
Compressed Gas through cannelure, enters into annular cavity by interior intercommunicating pore from air inlet.Enter into the secondary heat exchanger passage through the rotor air admission hole more afterwards.
Respectively there is one group of groove both sides at the annular cavity of air inlet end cap, are used to install lip-type packing, pressure ring and circlip for hole.Cover a boss inner chamber at inlet end, be used to install the bearing outer ring on the rotor part.
The outlet side cover is made up of the end cap of giving vent to anger, end cap seal circle, lip-type packing, pressure ring, circlip for hole and package strip, is installed in the other end of support component through screw, seals with the end cap seal circle.Middle inner surface at the end cap of giving vent to anger has an annular cavity; From outer surface to the annular cavity of the end cap of giving vent to anger several air distribution holes that evenly distribute; The outside one end of each air distribution hole has a strip groove; Package strip is installed and is welded with in the outside of groove, and groove and package strip are formed distribution cavity, and each distribution cavity has several nozzle bores.
Compressed Gas, is dispensed in each distribution cavity by air distribution hole through annular cavity from the rotor venthole, is injected into the Venturi tube from each nozzle bore again.
Respectively there is one group of groove both sides at the annular cavity of the end cap of giving vent to anger, are used to install lip-type packing, pressure ring and circlip for hole.Cover a boss inner chamber in the outlet side, be used to install the bearing outer ring on the rotor part.
Support component is made up of support, core clamping-plate, stator core, stator winding, piston ring, the gentle road of Venturi tube cover plate, through the support screwed hole on the support, is installed together with screw and inlet end cover and outlet side cover.The support inner surface has a support keyway, and the positioning key bar is installed.Stator core is formed by stacking several stator stampings; Respectively there is a slice core clamping-plate at the stator core two ends; Pressing plate keyway, iron core keyway and support keyway are accurately located with the positioning key bar; Piston ring through with the interference fit of support inner surface, be fixed on core clamping-plate and stator core in the support inner chamber.Stator winding is installed in the winding slot of core, and the winding joint of stator winding passes from the wire casing that goes out on the support, is installed in the terminal box.The support outer surface is uniform-distribution with several cooling fins.Trunnion and anemostat are arranged on the Venturi tube, and Venturi tube and air flue bridge welding are connected together, and are welded between two fin, form air flue.
Two holes are arranged on the tarpaulin of truncated cone, and the screw in the hole is installed in the installing hole of mandrel.
Compressed Gas passes from inlet end cover, rotor part and outlet side cover; Be injected in the Venturi tube by nozzle bore; This part gas has carried the heat that permanent magnet magnet steel and rotor yoke are produced; Be referred to as the air-flow of jetting, the temperature of winding-up air-flow is higher than ambient temperature, can not continue to cool off support.The winding-up air-flow passes trunnion and anemostat on the Venturi tube at a high speed, makes the gas pressure at trunnion place be lower than trunnion front end gas pressure on every side, and an induced draft that produces several times passes Venturi tube.Winding-up air-flow and an induced draft are injected into by trunnion on the Venturi tube and anemostat; In the air flue of forming by air flue cover plate and fin; Make the gas pressure in the air flue be lower than air flue front end gas pressure on every side equally; Produce the chain induction air-flow of several times, the chain induction air-flow is got in the air flue by the gap between Venturi tube and the both sides fin.The temperature of induced draft and chain induction air-flow equals ambient temperature, can cool off support.Combined gas streams is passed air flue, has carried the heat that rotor eddy current loss and stator copper loss and iron loss produced and has entered in the atmosphere.
The every circle of helical bundle is wound in rectangle, away from rotor axis be the helix tube evaporation section, near rotor axis be the helix tube condensation segment, what connect helix tube evaporation section and helix tube condensation segment is the helix tube linkage section.
The work medium for heat pipe of filling has liquid working media and gaseous working medium in the spiral heat exchange tube, is vaporizated into gaseous working medium after liquid working media is heated, and is condensed into liquid working media after the gaseous working medium cooling.When the permanent magnet synchronous motor of two-stage heat exchanger cooling moved, rotor part was according to the rotation of rotor direction of rotation, and under action of centrifugal force, liquid working media collects in the evaporation section liquid pool side of helix tube evaporation section, forms the work liquid pool.
Spiral heat exchange tube is assemblied in the rotor part; The helix tube evaporation section then is installed in the heat exchanger tube location notch two of rotor yoke, and the heat that permanent magnet magnet steel and rotor yoke are produced is transmitted to the helix tube evaporation section, the heating work liquid pool; After being heated, liquid working media is vaporizated into gaseous working medium; Gaseous working medium enters into two adjacent helix tube condensation segments along the helix tube linkage section of both sides, and the helix tube condensation segment then is installed in the heat exchanger tube location notch one of rotating shaft; Compressed Gas cooling spiral pipework condensation section in the helical groove of rotating shaft; Be condensed into liquid working media after the gaseous working medium cooling, be back in the work liquid pool of helix tube evaporation section, accomplish a thermal cycle along conflux side and helix tube linkage section of condensation segment.
Description of drawings
Figure of description is the sketch map of common permanent-magnet synchronous motor rotor and the structure chart of the permanent magnet synchronous motor that the two-stage heat exchanger cools off.Wherein Fig. 1 is the sketch map of common real core permanent-magnet synchronous motor rotor.Fig. 2 is the sketch map of common ring-type hollow permanent magnetism synchronous electric motor rotor.Fig. 3 is the axonometric drawing of the permanent magnet synchronous motor of two-stage heat exchanger cooling.Fig. 4 is the isometric cutaway view of the permanent magnet synchronous motor of two-stage heat exchanger cooling.Fig. 5 is the isometric cutaway view of rotor part.Fig. 6 is the isometric cutaway view of rotor welding.Fig. 7 is the isometric cutaway view of rotating shaft.Fig. 8 is the isometric cutaway view of rotor yoke.Fig. 9 is the axonometric drawing of rotor end plates.Figure 10 is the axonometric drawing of mandrel.Figure 11 is the axonometric drawing of permanent magnet magnet steel.Figure 12 is the axonometric drawing of spiral heat exchange tube.Figure 13 is the axonometric drawing of helical bundle.Figure 14 is the axonometric drawing of three-way pipe.Figure 15 is the isometric cutaway view of rotary piston sealing ring.Figure 16 is the isometric cutaway view of outlet side cover.Figure 17 is the isometric cutaway view of end cap of giving vent to anger.Figure 18 is the isometric cutaway view of inlet end cover.Figure 19 is the isometric cutaway view of air inlet end cap.Figure 20 is the axonometric drawing of package strip.Figure 21 is the axonometric drawing of case chip.Figure 22 is the isometric cutaway view of annular cover plate.Figure 23 is the isometric cutaway view of lip-type packing.Figure 24 is the axonometric drawing of pressure ring.Figure 25 is the axonometric drawing of circlip for hole.Figure 26 is the isometric cutaway view of support component.Figure 27 is the axonometric drawing of support.Figure 28 is the axonometric drawing of stator core.Figure 29 is the axonometric drawing of core clamping-plate.Figure 30 is the isometric cutaway view of piston ring.Figure 31 is the axonometric drawing of stator winding.Figure 32 is the isometric cutaway view of Venturi tube.Figure 33 is the axonometric drawing of Venturi tube and the welding of air flue cover plate.Figure 34 is the isometric cutaway view of tarpaulin.Figure 35 be Venturi tube induce the air inducing principle schematic.Figure 36 is a spiral heat exchange tube heat exchanger principle schematic.Figure 37 is a spiral heat exchange tube heat exchanger working media circulating path sketch map.
The figure acceptance of the bid is marked with rotor part 1; Outlet side cover 2; Support component 3; Inlet end cover 4; Tarpaulin 5; Output shaft keyway 6; Package strip 7; Nozzle bore 8; Venturi tube 9; Air flue cover plate 10; Go out wire casing 11; Fin 12; Case chip 13; Air inlet 14; Rotating shaft 15; Stem seal circle 16; Mandrel 17; Bearing 18; Rotor end plates 19; Rotor yoke 20; Permanent magnet magnet steel 21; Rotary piston sealing ring 22; Rotor venthole 23; Spiral heat exchange tube 24; Rotor air admission hole 25; Cylindrical pin with internal thread 26; Rotating shaft sealing circle groove 27; Escape 28; Helical groove 29; Heat exchanger tube location notch 1; Heat exchanger tube location notch 2 31; Pin-and-hole 1; Pin-and-hole 2 33; Installing hole 34; Helical bundle 35; Three-way pipe 36; Tube bank port 37; Press seal place 38; Liquid injection port 39; O-ring seals 1; O-ring seals 2 41; Sealing ring sleeve pipe 42; The end cap 43 of giving vent to anger; End cap seal circle 44; Lip-type packing 45; Pressure ring 46; Circlip for hole 47; Annular cavity 48; Air distribution hole 49; Distribution cavity 50; Boss inner chamber 51; Outer intercommunicating pore 52; Cannelure 53; Interior intercommunicating pore 54; Annular cover plate 55; Air inlet end cap 56; Core clamping-plate 57; Stator core 58; Stator winding 59; Piston ring 60; Support 61; Support screwed hole 62; Support keyway 63; Winding joint 64; Winding slot of core 65; Iron core keyway 66; Pressing plate keyway 67; Trunnion 68; Anemostat 69; An induced draft 70; Chain induction air-flow 71; Combined gas streams 72; Winding-up air-flow 73; Liquid working media 74; Gaseous working medium 75; Helix tube evaporation section 76; Work liquid pool 77; Helix tube linkage section 78; Rotor axis 79; Helix tube condensation segment 80; Rotor direction of rotation 81; Evaporation section liquid pool side 82 and the condensation segment side 83 of confluxing.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further narration.
With reference to Fig. 3 and Fig. 4, the permanent magnet synchronous motor of two-stage heat exchanger cooling is made up of rotor part 1, outlet side cover 2, support component 3, inlet end cover 4 and tarpaulin 5.Outlet side cover 2 and inlet end cover 4 are installed in the two ends of support component 3 respectively; Rotor part 1 is installed on the axis of outlet side cover 2, support component 3 and inlet end cover 4; Tarpaulin 5 is installed in an end of rotor part 1, and the other end is processed with output shaft keyway 6 for the output axle head; The wire casing of going out 11 is arranged on the support component 3, air inlet 14 is arranged on the inlet end cover 4.
With reference to Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 and Figure 11, rotor part 1 is welded together by rotating shaft 15, rotor end plates 19 and rotor yoke 20, pastes several permanent magnet magnet steel 21 successively at rotor yoke 20 outer surfaces, forms the rotor field.In the annular space that rotating shaft 15, rotor end plates 19 and rotor yoke 20 are formed, spiral heat exchange tube 24 and rotary piston sealing ring 22 are installed.
Filling work medium for heat pipe in the spiral heat exchange tube 24, rotary piston sealing ring 22 makes this annular space airtight, even spiral heat exchange tube 24 is revealed working media, also can not flow in the stator winding 59, thereby avoid destroying winding insulation.
Several heat exchanger tube location notchs 1 of outer surface distribution in the middle of the rotating shaft 15; The two ends of rotating shaft 15 outer surfaces are equipped with bearing 18; Mandrel 17 is installed in the center cavity of rotating shaft 15; With cylindrical pin with internal thread 26, through the pin-and-hole 1 of rotating shaft 15 1 ends, be connected fixing with the pin-and-hole 2 33 of mandrel 17 1 ends respectively.Respectively there is a rotating shaft sealing circle groove 27 at two ends in the center cavity of rotating shaft 15; Be used for mounting core Simmer ring 16; Respectively there is an escape 28 inboard of each rotating shaft sealing circle groove 27; Having helical groove 29 to link to each other between two escapes 28, a through hole is respectively arranged on each escape 28, is respectively rotor venthole 23 and rotor air admission hole 25.
Compressed Gas flow through rotor air admission hole 25, escape 28, helical groove 29, escape 28, rotor venthole 23 constitute the secondary heat exchanger passage.
With reference to Figure 12, Figure 13 and Figure 14, spiral heat exchange tube 24 is made up of helical bundle 35 and three-way pipe 36.Helical bundle 35 is twined by metal tube to be processed, and every circle is wound in rectangle, twines some circles, and every circle is evenly distributed along rotor axis 79, forms annularly, and it is end to end to restrain port 37.Straight-through two ports of three-way pipe 36 are connected with tube bank port 37, and welded seal, and the 3rd port is liquid injection port 39, and behind the filling work medium for heat pipe, 38 usefulness pressing tongs flatten at the press seal place in the spiral heat exchange tube 24, and at liquid injection port 39 welded seals.
With reference to Figure 15; The cross section of rotary piston sealing ring 22 is L-shaped; Surfaces externally and internally respectively has a groove, and O-ring seals 1 and O-ring seals 2 41 are installed respectively, and the internal thread hole on the rotary piston sealing ring 22 is equipped with holding screw and nut; Be fixed on rotary piston sealing ring 22 in the rotating shaft 15, the inner chamber of the sealing ring sleeve pipe 42 on the rotary piston sealing ring 22 is used to hold the liquid injection port 39 of spiral heat exchange tube 24.
With reference to Figure 18 and Figure 19; Inlet end cover 4 is made up of annular cover plate 55, air inlet end cap 56, end cap seal circle 44, lip-type packing 45, pressure ring 46, circlip for hole 47 and case chip 13; Be installed in an end of support component 3 through screw, with 44 sealings of end cap seal circle.Middle inner surface at air inlet end cap 56 has an annular cavity 48; Outer surface to annular cavity 48 even several through holes that distribute from air inlet end cap 56; Intercommunicating pore 54 and outer intercommunicating pore 52 in through hole is separated into by cannelure 53; The outside one end of each outer intercommunicating pore 52 has a circular groove, and case chip 13 is installed and is welded with in the outside of groove.A pipe joint is arranged on the annular cover plate 55, and this pipe joint is an air inlet 14, and annular cover plate 55 is welded on the cannelure 53 of air inlet end cap 56.
Compressed Gas through cannelure 53, enters into annular cavity 48 by interior intercommunicating pore 54 from air inlet 14.Enter into the secondary heat exchanger passage through rotor air admission hole 25 more afterwards.
Respectively there is one group of groove both sides at the annular cavity 48 of air inlet end cap 56, are used to install lip-type packing 45, pressure ring 46 and circlip for hole 47.A boss inner chamber 51 is arranged on air inlet end cap 56, be used to install bearing 18 outer rings on the rotor part 1.
With reference to Figure 16 and Figure 17, outlet side cover 2 is made up of the end cap 43 of giving vent to anger, end cap seal circle 44, lip-type packing 45, pressure ring 46, circlip for hole 47 and package strip 7, is installed in the other end of support component 3 through screw, with 44 sealings of end cap seal circle.Middle inner surface at the end cap 43 of giving vent to anger has an annular cavity 48; Outer surface to annular cavity 48 even several air distribution holes 49 that distribute from the end cap 43 of giving vent to anger; The outside one end of each air distribution hole 49 has a strip groove; Package strip 7 is installed and is welded with in the outside of groove, and groove and package strip 7 are formed distribution cavity 50, and each distribution cavity 50 has several nozzle bores 8.
Compressed Gas, is dispensed in each distribution cavity 50 by air distribution hole 49 through annular cavity 48 from rotor venthole 23, is injected into the Venturi tube 9 from each nozzle bore 8 again.
Respectively there is one group of groove both sides at the annular cavity 48 of the end cap 43 of giving vent to anger, are used to install lip-type packing 45, pressure ring 46 and circlip for hole 47.A boss inner chamber 51 is arranged on the end cap 43 of giving vent to anger, be used to install bearing 18 outer rings on the rotor part 1.
With reference to Figure 20, Figure 21, Figure 22, Figure 23, Figure 24 and Figure 25, package strip 7 is strips, and case chip 13 is circular, and annular cover plate 55, lip-type packing 45, pressure ring 46 and circlip for hole 47 all are annulars.
With reference to Figure 26, Figure 27, Figure 28, Figure 29, Figure 30, Figure 31, Figure 32 and Figure 33; Support component 3 is made up of support 61, core clamping-plate 57, stator core 58, stator winding 59, piston ring 60, Venturi tube 9 gentle road cover plates 10; Through the support screwed hole 62 on the support 61, be installed together with outlet side cover 2 with screw and inlet end cover 4.Support 61 inner surfaces have a support keyway 63, and the positioning key bar is installed.Stator core 58 is formed by stacking several stator stampings; Respectively there is a slice core clamping-plate 57 at stator core 58 two ends; Pressing plate keyway 67, iron core keyway 66 are accurately located with support keyway 63 usefulness positioning key bars; Piston ring 60 through with the interference fit of support 61 inner surfaces, be fixed on core clamping-plate 57 and stator core 58 in support 61 inner chambers.Stator winding 59 is installed in the winding slot of core 65, and the winding joint 64 of stator winding 59 passes from the wire casing 11 that goes out on the support 61, is installed in the terminal box.Support 61 outer surfaces are uniform-distribution with several cooling fins 12.Trunnion 68 and anemostat 69 are arranged on the Venturi tube 9, and Venturi tube 9 welds together with air flue cover plate 10, and is welded between two fin 12, forms air flue.
With reference to Figure 34, two holes are arranged on the tarpaulin 5 of truncated cone, the screw in the hole is installed in the installing hole 34 of mandrel 17.
With reference to Figure 35; Compressed Gas passes from inlet end cover 4, rotor part 1 and outlet side cover 2; Be injected in the Venturi tube 9 by nozzle bore 8, this part gas has carried the heat that permanent magnet magnet steel 21 and rotor yoke 20 are produced, and be referred to as to jet air-flow 73; The temperature of winding-up air-flow 73 is higher than ambient temperature, can not continue to cool off support 61.Winding-up air-flow 73 passes the trunnion 68 and anemostat 69 on the Venturi tube 9 at a high speed, makes the gas pressure at trunnion 68 places be lower than trunnion 68 front ends gas pressure on every side, and an induced draft 70 that produces several times passes Venturi tube 9.Winding-up air-flow 73 and an induced draft 70 are injected into by trunnion on the Venturi tube 9 68 and anemostat 69; In the air flue of forming by air flue cover plate 10 and fin 12; Make the gas pressure in the air flue be lower than air flue front end gas pressure on every side equally; Produce the chain induction air-flow 71 of several times, chain induction air-flow 71 is got in the air flue by the gap between Venturi tube 9 and the both sides fin 12.The temperature of induced draft 70 and chain induction air-flow 71 equals ambient temperature, can cool off support 61.Combined gas streams 72 is passed air flue, has carried the heat that rotor eddy current loss and stator copper loss and iron loss produced and has entered in the atmosphere.
With reference to Figure 36 and Figure 37; Helical bundle 35 every circles are wound in rectangle; Away from rotor axis 79 be helix tube evaporation section 76, near rotor axis 79 be helix tube condensation segment 80, what connect helix tube evaporation section 76 and helix tube condensation segment 80 is helix tube linkage section 78.
The work medium for heat pipe of filling has liquid working media 74 and gaseous working medium 75 in the spiral heat exchange tube 24, is vaporizated into gaseous working medium 75 after liquid working media 74 is heated, and is condensed into liquid working media 74 after gaseous working medium 75 coolings.When the permanent magnet synchronous motor of two-stage heat exchanger cooling moved, rotor part 1 was according to 81 rotations of rotor direction of rotation, and under action of centrifugal force, liquid working media 74 collects in the evaporation section liquid pool side 82 of helix tube evaporation section 76, forms work liquid pool 77.
Spiral heat exchange tube 24 is assemblied in the rotor part 1; 76 of helix tube evaporation sections are installed in the heat exchanger tube location notch 2 31 of rotor yoke 20, and permanent magnet magnet steel 21 is transmitted to helix tube evaporation section 76, heating work liquid pool 77 with the heat that rotor yoke 20 is produced; After being heated, liquid working media 74 is vaporizated into gaseous working medium 75; Gaseous working medium 75 enters into two adjacent helix tube condensation segments 80 along the helix tube linkage section 78 of both sides, and 80 of helix tube condensation segments are installed in the heat exchanger tube location notch 1 of rotating shaft 15; Compressed Gas cooling spiral pipework condensation section 80 in the helical groove 29 of rotating shaft 15; Be condensed into liquid working media 74 after gaseous working medium 75 cooling, be back in the work liquid pool 77 of helix tube evaporation section 76 with helix tube linkage section 78, accomplish a thermal cycle along the condensation segment side 83 of confluxing.
Claims (1)
1. the permanent magnet synchronous motor of a two-stage heat exchanger cooling is characterized in that being made up of rotor part (1), outlet side cover (2), support component (3), inlet end cover (4) and tarpaulin (5); Outlet side cover (2) and inlet end cover (4) are installed in the two ends of support component (3) respectively; Rotor part (1) is installed on the axis of outlet side cover (2), support component (3) and inlet end cover (4); Tarpaulin (5) is installed in an end of rotor part (1), and the other end is processed with output shaft keyway (6) for the output axle head; The wire casing of going out (11) is arranged on the support component (3), air inlet (14) is arranged on the inlet end cover (4);
Rotor part (1) is welded together by rotating shaft (15), rotor end plates (19) and rotor yoke (20), pastes several permanent magnet magnet steel (21) successively at rotor yoke (20) outer surface, forms the rotor field; In the annular space that rotating shaft (15), rotor end plates (19) and rotor yoke (20) are formed, spiral heat exchange tube (24) and rotary piston sealing ring (22) are installed;
Several heat exchanger tube location notchs one (30) of outer surface distribution in the middle of the rotating shaft (15); The two ends of rotating shaft (15) outer surface are equipped with bearing (18); Mandrel (17) is installed in the center cavity of rotating shaft (15); With cylindrical pin with internal thread (26), through the pin-and-hole one (32) of rotating shaft (15) one ends, be connected fixing with the pin-and-hole two (33) of mandrel (17) one ends respectively; Respectively there is a rotating shaft sealing circle groove (27) at two ends in the center cavity of rotating shaft (15); Be used for mounting core Simmer ring (16); Respectively there is an escape (28) inboard of each rotating shaft sealing circle groove (27); Having helical groove (29) to link to each other between two escapes (28), a through hole is respectively arranged on each escape (28), is respectively rotor venthole (23) and rotor air admission hole (25);
Rotor yoke (20) is a cylindrical shape, inner surface several heat exchanger tube location notchs two (31) that distribute, rotor end plates (19) is an annular, mandrel (17) be one cylindrical, mandrel (17) one ends have the installing hole (34) of two internal threads; Permanent magnet magnet steel (21) is a tile shape;
Spiral heat exchange tube (24) is made up of helical bundle (35) and three-way pipe (36); Helical bundle (35) is twined by metal tube to be processed, and every circle is wound in rectangle, twines some circles, and every circle is evenly distributed along rotor axis (79), forms annular, and it is end to end to restrain port (37); Straight-through two ports of three-way pipe (36) are connected with tube bank port (37); And welded seal, the 3rd port is liquid injection port (39), behind the work medium for heat pipe of annotating in the spiral heat exchange tube (24); Flatten with pressing tongs in press seal place (38), and at liquid injection port (39) welded seal;
The cross section of rotary piston sealing ring (22) is L-shaped; Surfaces externally and internally respectively has a groove; O-ring seals one (40) and O-ring seals two (41) are installed respectively; Internal thread hole on the rotary piston sealing ring (22) is equipped with holding screw and nut, is fixed on rotary piston sealing ring (22) in the rotating shaft (15), and the inner chamber of the sealing ring sleeve pipe (42) on the rotary piston sealing ring (22) is used to hold the liquid injection port (39) of spiral heat exchange tube (24);
Inlet end cover (4) is made up of annular cover plate (55), air inlet end cap (56), end cap seal circle (44), lip-type packing (45), pressure ring (46), circlip for hole (47) and case chip (13); Be installed in an end of support component (3) through screw, seal with end cap seal circle (44); Middle inner surface at air inlet end cap (56) has an annular cavity (48); From outer surface to the annular cavity (48) of air inlet end cap (56) several through holes that evenly distribute; Through hole is separated into interior intercommunicating pore (54) and outer intercommunicating pore (52) by cannelure (53); The outside one end of each outer intercommunicating pore (52) has a circular groove, and case chip (13) is installed and is welded with in the outside of groove; A pipe joint is arranged on the annular cover plate (55), and this pipe joint is air inlet (14), and annular cover plate (55) is welded on the cannelure (53) of air inlet end cap (56); Respectively there is one group of groove both sides at the annular cavity (48) of air inlet end cap (56), are used to install lip-type packing (45), pressure ring (46) and circlip for hole (47); A boss inner chamber (51) is arranged on air inlet end cap (56), be used to install bearing (18) outer ring on the rotor part (1);
Outlet side cover (2) is made up of the end cap of giving vent to anger (43), end cap seal circle (44), lip-type packing (45), pressure ring (46), circlip for hole (47) and package strip (7); Be installed in the other end of support component (3) through screw, seal with end cap seal circle (44); Middle inner surface at the end cap of giving vent to anger (43) has an annular cavity (48); From outer surface to the annular cavity (48) of the end cap of giving vent to anger (43) several air distribution holes (49) that evenly distribute; The outside one end of each air distribution hole (49) has a strip groove; Package strip (7) is installed and is welded with in the outside of groove, and groove and package strip (7) are formed distribution cavity (50), and each distribution cavity (50) has several nozzle bores (8); Respectively there is one group of groove both sides at the annular cavity (48) of the end cap of giving vent to anger (43), are used to install lip-type packing (45), pressure ring (46) and circlip for hole (47); A boss inner chamber (51) is arranged on the end cap of giving vent to anger (43), be used to install bearing (18) outer ring on the rotor part (1);
Support component (3) is made up of support (61), core clamping-plate (57), stator core (58), stator winding (59), piston ring (60), Venturi tube (9) gentle road cover plate (10); Piston ring (60) through with the interference fit of support (61) inner surface, be fixed on core clamping-plate (57) and stator core (58) in support (61) inner chamber; Stator winding (59) is installed in the winding slot of core (65); Support (61) outer surface is uniform-distribution with several cooling fins (12); Venturi tube (9) welds together with air flue cover plate (10), and is welded between two fin (12), forms air flue;
Two holes are arranged on the tarpaulin of truncated cone (5), and the screw in the hole is installed in the installing hole (34) of mandrel (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220114651XU CN202503406U (en) | 2012-03-16 | 2012-03-16 | Permanent-magnet synchronous motor of two-stage heat exchanger cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220114651XU CN202503406U (en) | 2012-03-16 | 2012-03-16 | Permanent-magnet synchronous motor of two-stage heat exchanger cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202503406U true CN202503406U (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220114651XU Expired - Lifetime CN202503406U (en) | 2012-03-16 | 2012-03-16 | Permanent-magnet synchronous motor of two-stage heat exchanger cooling |
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| Country | Link |
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| CN (1) | CN202503406U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611248A (en) * | 2012-03-16 | 2012-07-25 | 赵晓东 | Permanent magnet synchronous motor cooled by two stages of heat exchangers |
| CN105071619A (en) * | 2015-09-11 | 2015-11-18 | 天津理工大学 | Permanent magnet brushless motor having stator winding provided with heat-radiating device |
| CN107489624A (en) * | 2017-08-01 | 2017-12-19 | 中国科学院理化技术研究所 | Thermal compressor and heat exchange system thereof |
-
2012
- 2012-03-16 CN CN201220114651XU patent/CN202503406U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611248A (en) * | 2012-03-16 | 2012-07-25 | 赵晓东 | Permanent magnet synchronous motor cooled by two stages of heat exchangers |
| CN105071619A (en) * | 2015-09-11 | 2015-11-18 | 天津理工大学 | Permanent magnet brushless motor having stator winding provided with heat-radiating device |
| CN107489624A (en) * | 2017-08-01 | 2017-12-19 | 中国科学院理化技术研究所 | Thermal compressor and heat exchange system thereof |
| CN107489624B (en) * | 2017-08-01 | 2023-10-20 | 中国科学院理化技术研究所 | Thermal compressor and heat exchange system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121024 Effective date of abandoning: 20131204 |
|
| RGAV | Abandon patent right to avoid regrant |