WO2016102089A1 - Compresseur hermétique à conduit de chaleur - Google Patents

Compresseur hermétique à conduit de chaleur Download PDF

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Publication number
WO2016102089A1
WO2016102089A1 PCT/EP2015/072535 EP2015072535W WO2016102089A1 WO 2016102089 A1 WO2016102089 A1 WO 2016102089A1 EP 2015072535 W EP2015072535 W EP 2015072535W WO 2016102089 A1 WO2016102089 A1 WO 2016102089A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
stator
heat
intermediate member
casing
Prior art date
Application number
PCT/EP2015/072535
Other languages
English (en)
Inventor
Husnu Kerpicci
Yasam UZUN
Mehmet Onur DINCER
Kemal Sarioglu
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2016102089A1 publication Critical patent/WO2016102089A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/225—Heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores

Definitions

  • the present invention relates to a hermetic compressor, the performance of which is increased by cooling the electric motor.
  • the electric motor that is used for driving the crankshaft-piston rod, cylinder-piston mechanism and crankshaft-piston mechanism are situated in a leak-proof casing.
  • the loss occurring due to the motor efficiency being 70-80% and the mechanical losses occurring at the bearings cause the components in the compressor to heat up and cause the temperature of the refrigerant to increase before entering the cylinder, thus decreasing volumetric efficiency.
  • the increase in the temperature of the refrigerant during the compression process in the cylinder also causes heat transfer from the cylinder region into the casing. Since the compressor input power increases in cases wherein the cylinder is not cooled efficiently, performance decreases.
  • the entire thermal energy generated due to mechanical losses and the compression process is transferred to the environment via the casing when the steady state is reached.
  • the increase in the temperatures of the electric motor and other components decreases the volumetric efficiency since the density of the refrigerant received into the cylinder is decreased, while increasing the work load required during the compression since the temperature of the cylinder increases.
  • cooling the electric motor plays a significant role in the performance of the compressor.
  • the evaporator end of the heat pipe is placed into a hole bored on the cylinder and the condenser end thereof extends out of the casing.
  • the evaporator end of the heat pipe is immersed in to the lubricant while the condenser end is outside the casing.
  • the aim of the present invention is the realization of a compressor wherein the compressor motor is cooled so as to increase the performance of the compressor and to decrease the energy consumption thereof.
  • heat pipes are used, that have a heat absorbing end and a heat dissipating end, or as they are known in the state of the art, an evaporator region and a condenser region.
  • the heat absorbing end of the heat pipe is mounted onto the stator of the motor while the heat dissipating end thereof extends towards the casing.
  • the heat pipe enables the heat of the stator, thus of the motor, to be discharged out of the casing.
  • the efficiency of the compressor is enabled to be increased by decreasing the temperature of the electric motor reaching high temperatures in the compressor.
  • the refrigerant fluid that is in the liquid phase at the evaporator region, changes into the gas phase by drawing heat from the electric motor and draws the heat required for meeting the evaporation latent heat from the high temperature stator, thus enabling the temperature of the high temperature motor lamination sheets inside the compressor, thus the temperature of the motor, to be decreased. Since the cooling of the electric motor will decrease the heat transfer to the body bearing the movable components in the compressor, this situation also enables the volumetric efficiency and the motor efficiency to increase.
  • the present invention since the temperature of the motor, that is one of the most important heat sources in the compressor, is decreased, the increase in the temperature of the lubricant is limited. Thus, the lubrication feature of the compressor is improved.
  • the heat pipe is mounted onto the stator by means of an intermediate member.
  • the heat pipes are enabled to be fixed onto the stator without making any changes on the laminations.
  • springs are disposed between the stator and the intermediate member whereon the heat pipe is mounted.
  • the heat pipe is enabled to be affected by the vibrations generated due to the operation of the compressor at minimum.
  • the intermediate members while being mounted onto the stator, are fixed to each other by means of connection members.
  • connection members comprise recesses and protrusions that are oppositely provided on the adjacent edges of the intermediate members.
  • connection members comprise the recesses oppositely provided on the adjacent edges of the intermediate member and the springs that connect these recesses to each other.
  • connection member comprises the protrusions oppositely provided on the adjacent edges of the intermediate members and the springs that connect these protrusions to each other.
  • the intermediate members are fixed onto the stator so as to be affected by the vibrations generated due to the operation of the motor at minimum.
  • the stator laminations of the electric motor are enabled to be cooled.
  • the gas temperature inside the compressor is decreased, thus the volumetric efficiency is increased.
  • the COP of the compressor is increased to enable the latter to be operated in a more efficient manner, thereby decreasing the energy consumption of the refrigerator.
  • the compressor lubricant temperature is decreased and the bearings are enabled to be lubricated more efficiently, thus decreasing mechanical losses and minimizing abrasion risks.
  • the heat pipe is enabled to be affected from the compressor vibrations at minimum.
  • Figure 1 – is the schematic view of a compressor.
  • Figure 2 – is the exploded view of a compressor.
  • Figure 3 — is the top view of the casing of a compressor and the body disposed therein.
  • Figure 4 – is the detailed view of the stator, the body, the heat pipe and the intermediate member.
  • Figure 5 — is the detailed view of the segmented intermediate members and the connection members joining the intermediate members.
  • Figure 6 — is the detailed view of the connection members in another embodiment of the present invention.
  • Figure 7 — is the detailed view of the connection members in yet another embodiment of the present invention.
  • the hermetic compressor (1) comprises a body (2) wherein the crankshaft-piston rod and cylinder-piston mechanisms (M) are borne; a crankshaft (16) that rotates in the body (2); a motor (4) that provides the rotation of the crankshaft (16) and that has a ring-shaped core, a doughnut-shaped stator (5) composed of copper wire windings (S) arranged on the core and furthermore a rotor (17) that is passed through the gap at the center of the stator (5) to be mounted to the crankshaft (16) and that rotates inside the stator (5); and a casing (3) wherein the body (2) and the motor (4) are placed.
  • the compressor (1) of the present invention comprises one or more than one heat pipe (6) that has a heat absorbing end (18) mounted onto the stator (5) and a heat dissipating end (19) extending towards the casing (3) ( Figure 1, Figure 2, Figure 3 and Figure 4).
  • the refrigerant fluid that is in the liquid phase at the heat absorbing end (18) (evaporator region) in the heat pipe (6) changes into the gas phase by drawing heat from the stator (5), thus from the motor (4).
  • the heat required for meeting the evaporation latent heat is drawing from the high temperature stator (5).
  • the temperature of the high temperature stator (5) inside the compressor, thus of the motor (4) is decreased. Since the cooling of the motor (4) will decrease the heat transfer to the body (2), the volumetric efficiency is enabled to be increased. Moreover, the decrease in the motor (4) temperature enables the efficiency of the motor (4) to be increased.
  • the heat absorbing end (18) of the heat pump (6) mounted onto the stator (5) is U-shaped and bent like a hook while the heat dissipating end (19) is flat.
  • the stator (5) core is composed of stacked laminations and the heat absorbing end (18) of the heat pipe (6) is mounted to the last lamination at the upper or lower side of the stator (5) core.
  • the compressor (1) comprises one or more than one intermediate member (7) that enables the heat pipe (6) to be mounted onto the stator (5) and that is disposed between the stator (5) and the body (2).
  • the intermediate member (7) can be in form of a single piece ring surround the windings (S) at the surface of the stator (5) facing the body (2) or in form of segments in a number equal to the number of the heat pipes (6), surrounding the windings (S) at the surface of the stator (5) facing the body (2).
  • four intermediate members (7) are used for four heat pipes (6).
  • the intermediate member (7) is produced from plastic material.
  • the intermediate member (7) comprises a housing (8) at its upper edge, wherein the heat absorbing end (18) of the heat pipe (6) is mounted and a pin (9) that is disposed at the lower edge of the intermediate member (7) and that extends towards the upper surface of the stator (5).
  • the compressor (1) comprises a channel (10) that opens vertically on the stator (5).
  • the compressor (1) comprises four heat pipes (6) and four intermediate members (7).
  • the channels (10) with a 90o angle therebetween are arranged on the stator (5) and the pins (9) on the intermediate member (7) are fitted into the said channels (10), thus enabling the intermediate member (7) to be mounted onto the stator (5).
  • the compressor (1) comprises a spring (11) that is placed into each channel (10) on the stator (5).
  • the springs (11) are fitted over the pins (9) on the intermediate member (7), thus enabling the intermediate member (7) to be mounted onto the stator (5).
  • the heat pipe (6) is enabled to be affected from the vibrations generated during the operation of the motor (4) at minimum.
  • the compressor (1) comprises one or more than one hole (15) that is bored on the casing (3) and that enables the heat dissipating end (19), extending towards the casing (3), of the heat pipe (6) to extend out of the casing (3).
  • the heat of the motor (4) is enabled to be discharged to the outside by extending the heat pipe (6) out of the casing (3).
  • the heat dissipating end (19) of the heat pipe (6), the heat absorbing end (18) of which is mounted to the stator (5), extends towards the outside by passing through the hole (15) on the casing (3), thus the heat carried by the heat pipe (6) can be discharged out of the casing (3).
  • the heat pipe (6) and the holes (15) arranged on the casing (3) have rectangular cross-sections.
  • the compressor (1) comprises connection members (12) that are oppositely provided on the adjacent edges of the intermediate members (7) so as to fix the latter to each other ( Figure 5, Figure 6 and Figure 7).
  • connection member (12) comprises recesses (13) that are oppositely provided on the adjacent edges of the intermediate members (7) and protrusions (14) that enter the said recesses (13).
  • the springs (11) are disposed into the recesses (13).
  • the protrusions (14) enter the spring (11) disposed in the recess (13) and the intermediate members (7) are fixed onto the stator (5) so as to be affected by the vibrations generated due to the operation of the motor (4) at minimum ( Figure 5).
  • connection member (12) comprises the recesses (13) that are oppositely provided on the adjacent edges of the intermediate members (7) and the springs (11) that connect the said recesses (13) by being placed into the said recesses (13).
  • the intermediate members (7) are fixed onto the stator (5) so as to be affected by the vibrations generated due to the operation of the motor (4) at minimum ( Figure 6).
  • connection member (12) comprises the protrusions (14) that are oppositely provided on the adjacent edges of the intermediate members (7) and the springs (11) that connect the said protrusions (14) by being placed into the said protrusions (14).
  • the intermediate members (7) are fixed onto the stator (5) so as to be affected by the vibrations generated due to the operation of the motor (4) at minimum ( Figure 7).
  • the intermediate member (7) is resilient.
  • the performance thereof is increased and as a result of this, the energy consumption thereof is enabled to be decreased.

Abstract

La présente invention concerne un compresseur hermétique (1) comprenant un corps (2) portant des composants mobiles ; un vilebrequin (16) qui tourne dans le corps (2) ; un moteur (4) qui assure la rotation du vilebrequin (16) et qui a un noyau en forme de disque, un stator en forme d'anneau (5) composé d'enroulements (S) disposés sur le noyau et en outre un rotor (17) qui passe par l'espace au centre du stator (5) à monter sur le vilebrequin (16) et qui tourne à l'intérieur du stator (5) ; et un boîtier (3) dans lequel le corps (2) et le moteur (4) sont logés.
PCT/EP2015/072535 2014-12-25 2015-09-30 Compresseur hermétique à conduit de chaleur WO2016102089A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2014/15808 2014-12-25
TR201415808 2014-12-25

Publications (1)

Publication Number Publication Date
WO2016102089A1 true WO2016102089A1 (fr) 2016-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/072535 WO2016102089A1 (fr) 2014-12-25 2015-09-30 Compresseur hermétique à conduit de chaleur

Country Status (1)

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WO (1) WO2016102089A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020057826A1 (fr) * 2018-09-17 2020-03-26 Arcelik Anonim Sirketi Compresseur comprenant un silencieux d'aspiration

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801843A (en) * 1972-06-16 1974-04-02 Gen Electric Rotating electrical machine having rotor and stator cooled by means of heat pipes
JPS58214032A (ja) * 1982-06-08 1983-12-13 Mitsubishi Electric Corp フライホイ−ル装置
JPH0233417A (ja) * 1988-07-22 1990-02-02 Sanyo Denshi Kogyo Kk 発熱と騒音を伴う装置の冷却・防音方式
JP3175194B2 (ja) 1991-05-23 2001-06-11 住友電気工業株式会社 樹脂被覆電線
JP2002048066A (ja) 2000-08-04 2002-02-15 Matsushita Refrig Co Ltd 密閉型圧縮機
US20070024132A1 (en) * 2005-07-29 2007-02-01 Salamah Samir A Methods and apparatus for cooling wind turbine generators
WO2007014443A1 (fr) 2005-08-01 2007-02-08 Whirlpool S.A. Compresseur hermetique avec systeme de dissipation de chaleur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801843A (en) * 1972-06-16 1974-04-02 Gen Electric Rotating electrical machine having rotor and stator cooled by means of heat pipes
JPS58214032A (ja) * 1982-06-08 1983-12-13 Mitsubishi Electric Corp フライホイ−ル装置
JPH0233417A (ja) * 1988-07-22 1990-02-02 Sanyo Denshi Kogyo Kk 発熱と騒音を伴う装置の冷却・防音方式
JP3175194B2 (ja) 1991-05-23 2001-06-11 住友電気工業株式会社 樹脂被覆電線
JP2002048066A (ja) 2000-08-04 2002-02-15 Matsushita Refrig Co Ltd 密閉型圧縮機
US20070024132A1 (en) * 2005-07-29 2007-02-01 Salamah Samir A Methods and apparatus for cooling wind turbine generators
WO2007014443A1 (fr) 2005-08-01 2007-02-08 Whirlpool S.A. Compresseur hermetique avec systeme de dissipation de chaleur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020057826A1 (fr) * 2018-09-17 2020-03-26 Arcelik Anonim Sirketi Compresseur comprenant un silencieux d'aspiration

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