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CN104659967B - Phase-change heat motor - Google Patents

Phase-change heat motor Download PDF

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Publication number
CN104659967B
CN104659967B CN201310594785.5A CN201310594785A CN104659967B CN 104659967 B CN104659967 B CN 104659967B CN 201310594785 A CN201310594785 A CN 201310594785A CN 104659967 B CN104659967 B CN 104659967B
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phase
rear end
vacuum seal
change heat
counterbore
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CN201310594785.5A
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CN104659967A (en
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於贻鹏
陈肃蓓
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/19Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/20Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present invention relates to field of motor manufacturing, it is therefore an objective to provides a kind of phase-change heat motor.A kind of phase-change heat motor, including housing, drive end bearing bracket, rear end cap, stator, rotor, rotating shaft and fan;Described rotating shaft rear end is provided with the radiating fin component being located on rear side of fan;Rotating shaft is located at the vacuum seal closed chamber on rear side of radiating fin component provided with rear end;Vacuum sealing intracavitary is equipped with phase transformation working media.The phase-change heat motor radiating effect is preferably and electric efficiency is higher.

Description

Phase-change heat motor
Technical field
The present invention relates to field of motor manufacturing, especially a kind of phase-change heat motor.
Background technology
Inside can produce amount of heat when motor works, and cause motor bulk temperature to be substantially increased, system components energy consumption Increase, efficiency reduction, severe patient burns motor;So motor radiating is extremely important, Chinese patent notification number CN102594023A Disclosure of the invention one kind from radiating motor, including housing, stator, rotor and machine shaft, wherein, the housing has end cap, The end cap outer sheath is provided with the flabellum from enclosure interior exhausting outward, and the flabellum rotates in company with machine shaft;And, to that should fan Leaf position, in opened up on end cap beneficial to air flow out housing heat emission hole;Thereby, the present invention can be out of housing by adding The flabellum of portion's exhausting outward, actively comes out from motor internal exhausting.The radiating of current motor is also leaned on mainly by conduction, radiation Water jacket, external fan forced heat radiation, have that radiating effect is poor and the relatively low deficiency of electric efficiency, therefore, a kind of radiating of design Effect preferably and the higher phase-change heat motor of electric efficiency, as urgent problem to be solved.
The content of the invention
The invention aims to the radiating for overcoming current motor mainly by conduction, radiation, also have by water jacket, outside wind Forced heat radiation is fanned, there is the deficiency that radiating effect is poor and electric efficiency is relatively low and preferably imitated there is provided a kind of radiating effect with motor The higher phase-change heat motor of rate.
The present invention concrete technical scheme be:
A kind of phase-change heat motor, including housing, drive end bearing bracket, rear end cap, stator, rotor, rotating shaft and fan;Described turns Shaft rear end is provided with the radiating fin component being located on rear side of fan;Rotating shaft is located at the vacuum seal on rear side of radiating fin component provided with rear end Closed chamber;Vacuum sealing intracavitary is equipped with phase transformation working media.Heat is produced when the phase-change heat motor works makes rotor and stator Temperature is raised, and the liquid phase-change working media heating of the vacuum sealing intracavitary of rotating shaft reaches that boiling point flashes to gas, turns through fan Movable property life air-flow radiating fin component is cooled down, make be located at vacuum seal closed chamber rear portion gas be cooled to boiling temperature with Under be frozen into liquid, and the front end draw heat for moving forward to vacuum seal closed chamber along vacuum seal closed chamber side wall flashes to gas, Carry out circulation cooling.The phase-change heat motor radiating effect is preferably and electric efficiency is higher.
Preferably, described rotating shaft includes, rear end is fixedly connected with fan and rear end face is provided with the leading portion, preceding of connecting hole Hold the back segment being fixedly connected with connecting hole;The bottom surface of connecting hole is located at the preceding counterbore on front side of rotor front end face provided with front end;Back segment Front end face be provided with taper type hole;The diameter at the big end in taper type hole is identical with the diameter of preceding counterbore and is connected with preceding counterbore;Frustum The bottom surface of shape hole small end is provided with rear counterbore;Preceding counterbore, taper type hole and rear counterbore constitute vacuum seal closed chamber.The front end of back segment and company Hole is connect to be threadedly coupled and connection is bonded and sealed or be interference fitted with high-temp glue.Gas, which is cooled to below boiling temperature, is frozen into liquid Move forward to the front end draw heat of vacuum seal closed chamber along taper type hole hole wall and preceding counterbore hole wall under the action of the centrifugal force afterwards Gas is flashed to, circulation cooling is carried out.Taper type hole can increase the distance that solidifying liq travels forward under the action of the centrifugal force.
Preferably, the front end of described preceding counterbore mutually stabilizes generator provided with circular tube shaped;Mutually stabilize generator It is made up of anaerobic copper powder high temperature sintering or has the silk screen interval of different pores is stacked to constitute or circumferentially divided by many by multilayer The tubule of cloth is constituted.The solidifying liq that the pore absorption of generator travels forward along preceding counterbore hole wall is mutually stabilized, makes solidification It is preferable that liquid moves forward to radiating effect on front side of rotor front end face.
Preferably, the described length for mutually stabilizing generator for preceding counterbore length a quarter to 1/2nd. Prevent the solidifying liq deficiency that flows back from causing radiating efficiency reduction and solidifying liq backflow is too many causes phase change efficiency reduction can not be Internal heat is efficiently transferred to outside motor.
Preferably, described phase-change heat motor also includes several radiating tubes for being provided with vacuum seal closed pore;Vacuum seal Closed pore is built with phase transformation working media;The gusset of vacuum seal closed pore is provided with and mutually stabilized by what anaerobic copper powder high temperature sintering was constituted Layer;The rear end face of stator is provided with several radiating tube jacks;A radiating tube is inserted in the front end of each radiating tube through rear end cap In jack.Stator temperature rise makes the liquid phase-change working media heating in the vacuum seal closed pore of radiating tube reach that boiling point is flashed to Gas, rotates the air-flow produced through fan and radiating tube rear end is cooled down, and cools down the gas positioned at vacuum seal closed pore rear portion It is frozen into liquid below to boiling temperature, and before moving to vacuum seal closed pore under the pore suction-operated of phase transformation stabilized zone End draw heat flashes to gas, carries out circulation cooling.Radiating tube further improves the radiating effect and effect of phase-change heat motor Rate.
Preferably, described rear end cap is provided with several grooves;The rear end of each radiating tube, which is provided with, is located at a groove In and the bending section that is fixedly connected with rear end cap.Bending section makes radiating tube and rear end cap stable connection and raising cooling effect.
Preferably, described vacuum sealing intracavitary be equipped with phase transformation working media liquid phase when volume be vacuum seal closed chamber The a quarter of volume is to 1/2nd.Phase transformation working media phase transformation is smooth, good heat dissipation effect.
Preferably, described vacuum seal closed pore built with phase transformation working media liquid phase when volume be vacuum seal closed pore The a quarter of volume is to 1/2nd.Phase transformation working media phase transformation is smooth, good heat dissipation effect.
Preferably, described phase transformation working media is made up of the mixing of pure water, hydroxyethyl cellulose and antioxidant;It is pure The mass ratio of water purification, hydroxyethyl cellulose and antioxidant is 100:0.1-0.8:0.3-1.Hydroxyethyl cellulose can improve phase Become the activity of working media, antioxidant can prevent vacuum sealing cavity wall and vacuum sealing hole wall from corroding;Pure water, ethoxy The mass ratio of cellulose and antioxidant is 100:0.1-0.8:0.3-1 takes into account surfactant and denseness.
Preferably, described radiating fin component includes the fixed cover being fixedly connected with back segment and is set in outside fixed cover Dish type fins set.The simple good heat dissipation effect of radiating fin modular construction.
Compared with prior art, the beneficial effects of the invention are as follows:The phase-change heat motor radiating effect is preferably imitated with motor Rate is higher.Taper type hole can increase the distance that solidifying liq travels forward under the action of the centrifugal force.Mutually stabilize the hair of generator The solidifying liq that pore absorption travels forward along preceding counterbore hole wall, makes solidifying liq move forward to radiating on front side of rotor front end face Effect is preferable.It is a quarter of preceding counterbore length to 1/2nd mutually to stabilize the length of generator, prevents solidifying liq from returning Stream deficiency causes radiating efficiency reduction and solidifying liq backflow to cause phase change efficiency reduction internal heat can not be effectively turned too much Move on to outside motor.Radiating tube further improves the radiating effect and efficiency of phase-change heat motor.Bending section makes radiating tube and rear end Lid stable connection and raising cooling effect.Volume during the phase transformation working media liquid phase that vacuum sealing intracavitary is equipped with is vacuum sealing The a quarter of chamber volume to 1/2nd, vacuum seal closed pore built with phase transformation working media liquid phase when volume be vacuum seal The a quarter of closed pore volume is to 1/2nd, and phase transformation working media phase transformation is smooth, good heat dissipation effect.Pure water, ethoxy are fine The mass ratio of dimension element and antioxidant is 100:0.1-0.8:0.3-1, takes into account surfactant and denseness.Radiating fin component knot The simple good heat dissipation effect of structure.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the enlarged drawing of radiating tube in Fig. 1.
In figure:It is housing -1, rear end cap -2, groove 21, stator -3, radiating tube jack -31, rotating shaft -4, connecting hole -41, preceding Section -42, back segment -43, preceding counterbore -44, taper type hole -45, rear counterbore -46, radiating tube -5, vacuum seal closed pore -51, mutually stabilize Layer -52, bending section -53, radiating fin component -6, fixed cover -61, dish type fins set -62, drive end bearing bracket -7, rotor -8, fan - 9th, vacuum seal closed chamber -10, phase transformation working media -11, mutually stabilize generator -12.
Embodiment
It is shown below in conjunction with the accompanying drawings that the present invention is described further.
As shown in accompanying drawing 1, accompanying drawing 2:A kind of phase-change heat motor, including housing 1, drive end bearing bracket 7, rear end cap 2, stator 3, turn Son 8, rotating shaft 4, six radiating tubes 5 and fan 9 with vacuum seal closed pore 51;The described rear end of rotating shaft 4, which has, to be located at after fan 9 The radiating fin component 6 of side;Rotating shaft 4 has the vacuum seal closed chamber 10 that rear end is located on rear side of radiating fin component 6;Vacuum seal closed chamber 10 built with phase transformation working media 11.
In the present embodiment, described rotating shaft 4 includes that rear end is connected with the key of fan 9 and rear end face has the leading portion of connecting hole 41 42nd, the back segment 43 that front end is threadedly coupled with connecting hole 41 and is bonded and sealed with high-temp glue;The bottom surface of connecting hole 41 has front end position Preceding counterbore 44 on front side of the front end face of rotor 8;The front end face of back segment 43 has taper type hole 45;The diameter that taper type hole 45 is held greatly It is identical with the diameter of preceding counterbore 44 and connected with preceding counterbore 44;The bottom surface of the small end of taper type hole 45 has rear counterbore 46;Preceding counterbore 44th, taper type hole 45 and rear counterbore 46 constitute vacuum seal closed chamber 10.
What the front end of described preceding counterbore 44 had a circular tube shaped mutually stabilizes generator 12;Generator 12 is mutually stabilized by nothing Oxygen copper powder high temperature sintering constitutes or has the silk screen interval of different pores is stacked to constitute or circumferential by many by multilayer Tubule is constituted.In the present embodiment, mutually stabilize generator 12 and be made up of anaerobic copper powder high temperature sintering.
The described length for mutually stabilizing generator 12 is 1/3rd of the preceding length of counterbore 44.
Described vacuum seal closed pore 51 is built with phase transformation working media 11;The gusset of vacuum seal closed pore 51 has by oxygen-free copper The phase transformation stabilized zone 52 that powder high temperature sintering is constituted;The rear end face of stator 3 has six radiating tube jacks 31;Six radiating tube jacks 31 are uniformly distributed along the circumference;The front end of each radiating tube 5 is inserted in a radiating tube jack 31 through rear end cap 2.
Described rear end cap 2 has six grooves 21;The rear end of each radiating tube 5 have be located in a groove 21 and with The bending section 53 that rear end cap 2 is bonded.
Described vacuum seal closed chamber 10 built with phase transformation 11 liquid phase of working media when volume hold for vacuum seal closed chamber 10 Long-pending 1/3rd.
Described vacuum seal closed pore 51 built with phase transformation 11 liquid phase of working media when volume hold for vacuum seal closed pore 51 Long-pending 1/3rd.
Described phase transformation working media 11 is made up of the mixing of pure water, hydroxyethyl cellulose and antioxidant;Pure water, hydroxyl The mass ratio of ethyl cellulose and antioxidant is 100:0.4:0.7.
Described radiating fin component 6 includes the fixed cover 61 being connected with the key of back segment 43 and the disk being set in outside fixed cover 61 Shape fins set 62.
Heat is produced when the phase-change heat motor works raises the temperature of rotor 8 and stator 3, the vacuum sealing of rotating shaft 4 The heating of liquid phase-change working media 11 in chamber 10 reaches that boiling point flashes to gas, and the air-flow produced is rotated to radiating through fan 9 Fin component 6 is cooled down, and the gas positioned at the rear portion of vacuum seal closed chamber 10 is cooled to below boiling temperature and is frozen into liquid, and Travelled forward under the action of the centrifugal force along the hole wall of taper type hole 45 with the preceding hole wall of counterbore 44 and mutually stabilized the hair of generator 12 The front end draw heat that pore absorption moves to vacuum seal closed chamber 10 flashes to gas, carries out circulation cooling;The vacuum of radiating tube 5 The heating of liquid phase-change working media 11 in blind hole 51 reaches that boiling point flashes to gas, and the air-flow pair produced is rotated through fan 9 The bending section 53 of the rear end of radiating tube 5 is cooled down, and the gas positioned at the rear portion of vacuum seal closed pore 51 is cooled to below boiling temperature Liquid is frozen into, and moves under the pore suction-operated of phase transformation stabilized zone 52 the front end draw heat of vacuum seal closed pore 51 Gas is flashed to, circulation cooling is carried out.
The beneficial effects of the invention are as follows:The phase-change heat motor radiating effect is preferably and electric efficiency is higher.Taper type hole The distance that solidifying liq travels forward under the action of the centrifugal force can be increased.The pore for mutually stabilizing generator is adsorbed along preceding counterbore The solidifying liq that hole wall travels forward, makes solidifying liq move forward to radiating effect on front side of rotor front end face preferable.Phase transformation is steady The length for determining generator is 1/3rd of preceding counterbore length, prevents solidifying liq backflow deficiency from causing radiating efficiency to reduce and solidifying Solid-liquid backflow is too many to cause phase change efficiency reduction internal heat can not be efficiently transferred to outside motor.Radiating tube is further improved The radiating effect and efficiency of phase-change heat motor.Bending section makes radiating tube and rear end cap stable connection and raising cooling effect.Very Empty closing chamber built with phase transformation working media liquid phase when volume be vacuum seal closed chamber volume 1/3rd, vacuum seal closed pore Built with phase transformation working media liquid phase when volume be vacuum sealing pore volume 1/3rd, phase transformation working media phase transformation is suitable Freely, good heat dissipation effect.The mass ratio of pure water, hydroxyethyl cellulose and antioxidant is 100:0.4:0.7 takes into account surface-active Agent and denseness.The simple good heat dissipation effect of radiating fin modular construction.
The present invention can change into that various ways are apparent to one skilled in the art, and such change is not considered as Depart from the scope of the present invention.All such technical staff to the field obviously change, and are included within this right It is required that within the scope of.

Claims (5)

1. a kind of phase-change heat motor, including housing, drive end bearing bracket, rear end cap, stator, rotor, rotating shaft and fan;It is characterized in that, Described rotating shaft rear end is provided with the radiating fin component being located on rear side of fan;Rotating shaft is located on rear side of radiating fin component provided with rear end Vacuum seal closed chamber;Vacuum sealing intracavitary is equipped with phase transformation working media;Phase-change heat motor also includes several and is provided with vacuum seal The radiating tube of closed pore;Vacuum seal closed pore is built with phase transformation working media;The gusset of vacuum seal closed pore is provided with by anaerobic copper powder high temperature Sinter the phase transformation stabilized zone constituted;The rear end face of stator is provided with several radiating tube jacks;After the front end of each radiating tube is passed through End cap is inserted in a radiating tube jack;Rear end cap is provided with several grooves;The rear end of each radiating tube is provided with recessed positioned at one The bending section being fixedly connected in groove and with rear end cap;Phase transformation working media is mixed by pure water, hydroxyethyl cellulose and antioxidant Close and constitute;The mass ratio of pure water, hydroxyethyl cellulose and antioxidant is 100:0.1-0.8:0.3-1;Rotating shaft includes rear end It is fixedly connected with fan and back segment that rear end face is fixedly connected provided with the leading portion of connecting hole, front end with connecting hole;The bottom of connecting hole Face is located at the preceding counterbore on front side of rotor front end face provided with front end;The front end face of back segment is provided with taper type hole;The big end in taper type hole Diameter is identical with the diameter of preceding counterbore and is connected with preceding counterbore;The bottom surface of taper type hole small end is provided with rear counterbore;Preceding counterbore, frustum Shape hole and rear counterbore constitute vacuum seal closed chamber;The front end of preceding counterbore mutually stabilizes generator provided with circular tube shaped;Mutually stabilize hair Raw device be made up of anaerobic copper powder high temperature sintering or by multilayer have the silk screen interval of different pores it is stacked constitute or by many along circle The tubule of week distribution is constituted.
2. phase-change heat motor according to claim 1, it is characterized in that:Before the described length for mutually stabilizing generator is The a quarter of counterbore length is to 1/2nd.
3. phase-change heat motor according to claim 1, it is characterized in that:What described vacuum sealing intracavitary was equipped with mutually exchanges work Volume when making medium liquid phase for vacuum seal closed chamber volume a quarter to 1/2nd.
4. phase-change heat motor according to claim 1, it is characterized in that:Described vacuum seal closed pore built with mutually exchange work Volume when making medium liquid phase for vacuum sealing pore volume a quarter to 1/2nd.
5. the phase-change heat motor according to claim 1 or 2 or 3 or 4, it is characterized in that:Described radiating fin component bag The dish type fins set for including the fixed cover being fixedly connected with back segment and being set in outside fixed cover.
CN201310594785.5A 2013-11-21 2013-11-21 Phase-change heat motor Active CN104659967B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517533B1 (en) * 2015-07-20 2017-06-15 Avl List Gmbh Electric machine
CN106160350A (en) * 2016-07-10 2016-11-23 襄阳华博士新能源科技有限公司 A kind of motor being provided with fan-shaped super heat-conductive pipe
CN107154702B (en) * 2017-07-12 2023-04-07 湖北二电电气有限公司 High-efficient windage-free motor
CN107910975A (en) * 2018-01-08 2018-04-13 安徽朗轶工业自动化系统有限公司 A kind of end cover structure and its processing method for improving motor interior heat dissipation effect
CN110953909B (en) * 2019-12-12 2020-12-08 中船重工(上海)新能源有限公司 Manufacturing process of annular heat accumulator and annular heat accumulator
CN117134539B (en) * 2023-09-11 2024-03-19 贝德凯利电气(苏州)有限公司 Water-cooling heat dissipation structure of high-voltage direct-current fan

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Publication number Priority date Publication date Assignee Title
EP0152785B1 (en) * 1984-02-15 1988-10-19 Kernforschungszentrum Karlsruhe Gmbh Rotating machine with heat pipe cooling
CN202435199U (en) * 2011-12-31 2012-09-12 大连熵立得传热技术有限公司 Heat pipe module heat-dissipation type oil-bath electric motor
CN203596709U (en) * 2013-11-21 2014-05-14 於贻鹏 Phase transition heat dissipation motor

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JPS57138841A (en) * 1981-02-18 1982-08-27 Hitachi Ltd Rotary electric machine
SE528580C2 (en) * 2005-05-25 2006-12-19 Abb Ab Rotating electrical machine incorporates a motor shaft which contains a heat tube and applies to both low and high voltage machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152785B1 (en) * 1984-02-15 1988-10-19 Kernforschungszentrum Karlsruhe Gmbh Rotating machine with heat pipe cooling
CN202435199U (en) * 2011-12-31 2012-09-12 大连熵立得传热技术有限公司 Heat pipe module heat-dissipation type oil-bath electric motor
CN203596709U (en) * 2013-11-21 2014-05-14 於贻鹏 Phase transition heat dissipation motor

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