CN111043032A - Scroll compressor with motor cooling function - Google Patents
Scroll compressor with motor cooling function Download PDFInfo
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- CN111043032A CN111043032A CN201911337719.3A CN201911337719A CN111043032A CN 111043032 A CN111043032 A CN 111043032A CN 201911337719 A CN201911337719 A CN 201911337719A CN 111043032 A CN111043032 A CN 111043032A
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- refrigerant
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- fixing frame
- cooling function
- scroll compressor
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- 238000001816 cooling Methods 0.000 title claims abstract description 24
- 239000003507 refrigerant Substances 0.000 claims abstract description 179
- 238000007789 sealing Methods 0.000 claims description 58
- 230000003068 static effect Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000007382 vortex spinning Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
- F04C18/0223—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving with symmetrical double wraps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a scroll compressor with motor cooling function, this scroll compressor with motor cooling function includes the casing, and shells inner wall is fixed with the motor mount, and the motor mount is provided with refrigerant channel, and refrigerant entry and refrigerant export have been seted up to the motor mount, and the casing is fixed with the refrigerant entry connector with refrigerant entry intercommunication and the refrigerant exit linkage with refrigerant export intercommunication. According to the invention, the refrigerant channel is arranged on the motor fixing frame, the refrigerant inlet connector and the refrigerant outlet connector are arranged on the shell, and the refrigerant is fed from the refrigerant inlet connector, so that the motor is cooled when the refrigerant passes through the refrigerant channel, and the refrigerant absorbing heat is discharged from the refrigerant outlet connector, thereby solving the problem that the compressor is invalid and overheated to be increased due to the heat dissipation of the motor, and further improving the reliability and the operating range of the low-pressure cavity vortex compressor.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a scroll compressor with a motor cooling function.
Background
The scroll compressor has the advantages of simple structure, small volume, light weight, low noise, high mechanical efficiency, stable operation and the like. For the low-pressure cavity vortex compressor, because the motor is arranged on the air suction side, in the running process of the compressor, the refrigerant on the air suction side can enter the air suction port of the pump body after absorbing the heat radiation of the motor, so the actual superheat degree of the compressor is greatly increased, namely, larger invalid superheat exists, and the reliability and the running range of the compressor are adversely affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the scroll compressor with the motor cooling function, and the scroll compressor with the motor cooling function can solve the problem that the invalid overheating of the compressor is increased due to the heat dissipation of the motor, so that the reliability and the operating range of the low-pressure cavity scroll compressor are improved.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a scroll compressor with motor cooling function, includes the casing, the inner wall of casing is fixed with the motor mount, the motor mount is cyclic annular setting, be provided with the refrigerant passageway on the ring body of motor mount, the intercommunication has been seted up respectively to the lateral wall of motor mount the refrigerant entry and the refrigerant export of refrigerant passageway, the casing is fixed with and runs through the casing, and respectively with the refrigerant entry connector of refrigerant entry intercommunication and with the refrigerant exit linkage head of refrigerant export intercommunication. Through set up the refrigerant passageway on annular motor mount, cooperate the refrigerant passageway to set up refrigerant entry and refrigerant export on the motor mount simultaneously, and set up the refrigerant entry connector with refrigerant entry intercommunication and the refrigerant exit linkage with refrigerant export intercommunication on the casing, through sending into the refrigerant from refrigerant entry connector, the refrigerant can be when the refrigerant passageway on the motor mount, cool off the motor, the refrigerant that has absorbed heat can be followed refrigerant exit linkage and discharged, thereby the problem of the invalid overheated increase of compressor that leads to the fact the motor heat dissipation has been solved, and then the reliability and the operating range of low pressure chamber vortex compressor have been improved.
Furthermore, the refrigerant outlet connector is communicated with the middle compression cavity of the compressor. The refrigerant outlet connector is communicated with the middle compression cavity of the compressor, and the refrigerant discharged from the refrigerant outlet connector is introduced into the middle compression cavity of the compressor, so that the performance of the low-pressure cavity vortex compressor is improved.
Furthermore, the refrigerant channel is an annular groove formed in the upper end surface or the lower end surface of the motor fixing frame, the refrigerant inlet and the refrigerant outlet formed in the outer side wall of the motor fixing frame are respectively communicated with the annular groove, and a sealing plate for sealing the annular groove is fixed on the upper end surface or the lower end surface of the motor fixing frame. The annular groove is formed in the upper end face or the lower end face of the motor fixing frame to serve as a refrigerant channel, and the sealing plate for sealing the annular groove is fixed on the end face where the annular groove is formed, so that the refrigerant flowing into the annular groove is prevented from flowing out, and a complete refrigerant loop cannot be formed with the refrigerant inlet and the refrigerant outlet.
Furthermore, a sealing gasket is arranged between the motor fixing frame and the sealing plate. Be provided with sealed the pad between motor mount and the closing plate, sealed the pad and be used for increasing the leakproofness of closing plate, prevent that the refrigerant that flows into in the annular groove from flowing out to can't form complete refrigerant return circuit with refrigerant entry and refrigerant export.
Furthermore, the refrigerant channel is an annular through hole arranged inside an annular body of the motor fixing frame, and the refrigerant inlet and the refrigerant outlet which are formed in the outer side wall of the motor fixing frame are respectively communicated with the annular through hole. For the arrangement of the cooling medium channel, the annular through hole can be arranged in the annular body of the motor fixing frame, the annular through hole is used as the cooling medium channel, the motor can be cooled, and meanwhile, the sealing plate and the sealing gasket can be omitted.
Furthermore, at least one sealing groove for installing a sealing ring is formed in the outer peripheral surfaces of the refrigerant inlet connector and the refrigerant outlet connector, and an axial through hole is formed in the axial direction of the refrigerant inlet connector and the refrigerant outlet connector. At least one sealing groove for installing a sealing ring is formed in the outer peripheral surfaces of the refrigerant inlet connector and the refrigerant outlet connector, the sealing ring is installed on the sealing groove to increase the sealing performance of the refrigerant inlet connector and the refrigerant outlet connector and the shell, the refrigerant leakage is prevented, and the motor cooling effect is influenced.
Furthermore, a motor is fixed in the annular body of the motor fixing frame, and a crankshaft is fixed on a rotor of the motor. The motor is used for driving the crankshaft to rotate, and the crankshaft is used for driving the compressor to work.
Further, one end of the crankshaft is provided with a lower bearing, a lower support ring is arranged on the lower bearing, the lower bearing is located on the outer side of the lower support ring and is provided with a lower support, the other end of the crankshaft is provided with an eccentric sleeve, a movable scroll disk is arranged on the eccentric sleeve, and a static scroll disk is arranged on the movable scroll disk in a matched mode. One end of the crankshaft is provided with a lower bearing, the lower bearing is used for installing a lower support ring and a lower support frame, the lower support ring and the lower support frame are used for supporting the crankshaft to prevent the crankshaft from deforming, the eccentric sleeve has radial flexibility, the movable scroll disk and the static scroll disk are installed in an opposite mode with a phase angle difference of 180 degrees, the eccentric sleeve can move under the driving of the crankshaft to drive the movable scroll disk, and the movable scroll disk and the static scroll disk are meshed to form a series of crescent closed containing cavities which are mutually isolated and continuously changed in volume.
Further, an upper support is arranged at the bottom of the movable scroll disc, a main balance block is arranged in the upper support on the crankshaft, a support plate is arranged between the upper support and the movable scroll disc, and a cross slip ring is arranged between the support plate and the movable scroll disc. When the compressor normally works, the static vortex disc is tightly pressed on the movable vortex disc by the axial force of gas in a middle pressure cavity formed on the back surface of the static vortex disc, the movable vortex disc is tightly pressed on the supporting plate on the upper bracket due to the action of high-pressure gas in a compression cavity and the action force of the static vortex disc, the upper bracket and the supporting plate arranged at the bottom of the movable vortex disc can play a good supporting role at the moment, the normal operation of the compressor is ensured, a main balance block arranged in the upper bracket on a crankshaft is used for maintaining the balance of the crankshaft in the rotation process, and meanwhile, the movable vortex disc does translational motion around the center of the crankshaft with a fixed radius under the autorotation prevention limit of the cross.
Further, a sealing cover is arranged at the top of the static scroll disc, a partition plate is arranged at the top end of the sealing cover, an exhaust port is formed in the partition plate, and a check valve is arranged at the exhaust port. The top of the static vortex disc is provided with a sealing cover, the sealing cover can axially float to form a sealed exhaust passage with the partition plate in the working process of the compressor, an exhaust port arranged on the partition plate is used for exhausting gas in the exhaust passage, and the check valve is used for placing external gas to flow into the exhaust passage.
The invention has the beneficial effects that: the scroll compressor with the motor cooling function comprises a shell, wherein a motor fixing frame is fixed on the inner wall of the shell, the motor fixing frame is arranged in an annular shape, a refrigerant channel is arranged on the annular body of the motor fixing frame, a refrigerant inlet and a refrigerant outlet which are communicated with the refrigerant channel are respectively formed in the outer side wall of the motor fixing frame, and a refrigerant inlet connector and a refrigerant outlet connector which penetrate through the shell and are respectively communicated with the refrigerant inlet and the refrigerant outlet are fixed on the shell. According to the invention, the refrigerant channel is arranged on the annular motor fixing frame, the refrigerant inlet and the refrigerant outlet are arranged on the motor fixing frame by matching with the refrigerant channel, the refrigerant inlet connector communicated with the refrigerant inlet and the refrigerant outlet connector communicated with the refrigerant outlet are arranged on the shell, and by feeding the refrigerant from the refrigerant inlet connector, the refrigerant can cool the motor when passing through the refrigerant channel on the motor fixing frame, and the refrigerant absorbing heat can be discharged from the refrigerant outlet connector, so that the problem of invalid overheating increase of the compressor caused by heat dissipation of the motor is solved, and the reliability and the operating range of the low-pressure cavity vortex spinning compressor are improved.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic view showing an overall structure of a scroll compressor having a motor cooling function according to the present invention.
Fig. 2 is a schematic view of the structure at a in fig. 1.
Fig. 3 is an exploded view of the motor holder, the gasket, and the sealing plate of the present invention.
Fig. 4 is a schematic structural diagram of the motor fixing frame of the present invention.
Fig. 5 is a schematic structural view of a refrigerant inlet connector according to the present invention.
FIG. 6 is a schematic diagram of the system connections for a scroll compressor having motor cooling of the present invention.
Fig. 7 is a structural cross-sectional view of a motor holder in embodiment 3 of the present invention.
Fig. 8 is a structural vertical sectional view of a motor mount in embodiment 3 of the present invention.
The figure includes:
the compressor comprises a shell 1, a motor fixing frame 2, a refrigerant channel 3, a refrigerant inlet 4, a refrigerant outlet 5, a refrigerant inlet connector 6, a refrigerant outlet connector 7, a sealing plate 8, a boss 9, a screw hole 10, a sealing gasket 11, a sealing groove 12, an axial through hole 13, a motor 14, a crankshaft 15, a lower bearing 16, a lower support ring 17, a lower support frame 18, an eccentric sleeve 19, a movable scroll disk 20, a static scroll disk 21, an upper support frame 22, a main balance block 23, a support plate 24, an oldham ring 25, a sealing cover 26, a separation plate 27, a compressor 01, a condenser 02, a second throttle valve 03, a first throttle valve 04, an evaporator 05 and a one-way valve 06.
Detailed Description
The invention is further described with reference to the following examples.
Example 1
The scroll compressor with the motor cooling function of the embodiment is shown in fig. 1-5, and includes a housing 1, a motor fixing frame 2 is fixed on an inner wall of the housing 1, the motor fixing frame 2 is in an annular arrangement, a refrigerant channel 3 is arranged on an annular body of the motor fixing frame 2, a refrigerant inlet 4 and a refrigerant outlet 5 which are communicated with the refrigerant channel 3 are respectively arranged on an outer side wall of the motor fixing frame 2, and the housing 1 is fixed with a refrigerant inlet connector 6 which penetrates through the housing 1 and is respectively communicated with the refrigerant inlet 4 and a refrigerant outlet connector 7 which is communicated with the refrigerant outlet 5. The refrigerant channel 3 is arranged on the annular motor fixing frame 2, the refrigerant inlet 4 and the refrigerant outlet 5 are formed in the motor fixing frame 2 by matching with the refrigerant channel 3, the refrigerant inlet connector 6 communicated with the refrigerant inlet 4 and the refrigerant outlet connector 7 communicated with the refrigerant outlet 5 are arranged on the shell 1, the refrigerant is fed from the refrigerant inlet connector 6, the motor is cooled when the refrigerant passes through the refrigerant channel 3 on the motor fixing frame 2, the refrigerant absorbing heat is discharged from the refrigerant outlet connector 7, the problem that the compressor is invalid and overheated to be increased due to heat dissipation of the motor is solved, the refrigerant discharged from the refrigerant outlet connector 7 is introduced into a middle compression cavity of the compressor, and the reliability (the reliability under severe working conditions such as high pressure ratio and the like) and the running range of the low-pressure cavity vortex compressor are improved.
And the refrigerant outlet connector 7 is communicated with the middle compression cavity of the compressor. The refrigerant outlet connector 7 is communicated with the middle compression cavity of the compressor, and the refrigerant discharged from the refrigerant outlet connector 7 is introduced into the middle compression cavity of the compressor, so that the performance (power reduction) of the low-pressure cavity vortex compressor is improved.
The refrigerant channel 3 is an annular groove formed in the upper end face and the lower end face of the motor fixing frame, the refrigerant inlet 4 and the refrigerant outlet 5 formed in the outer side wall of the motor fixing frame 2 are respectively communicated with the annular groove, and sealing plates 8 for sealing the annular groove are fixed on the upper end face and the lower end face of the motor fixing frame 2. The annular grooves are formed in the upper end face and the lower end face of the motor fixing frame 2 to serve as the refrigerant channels 3, two independent refrigerant channels 3 can be correspondingly formed in the two end faces, and meanwhile the sealing plates 8 for sealing the annular grooves are fixed on the end faces of the annular grooves to prevent the refrigerant flowing into the annular grooves from flowing out, so that a complete refrigerant loop cannot be formed with the refrigerant inlet 4 and the refrigerant outlet 5. Two groups of refrigerant inlets 4 and refrigerant outlets 5 may be provided, each group corresponding to an independent refrigerant channel 3. For the installation of the sealing plate 8, a plurality of bosses 9 which are integrally formed can be arranged on the outer circumference of the motor fixing frame, screw holes 10 are arranged on the bosses 9, and the corresponding sealing plate 8 is designed according to the shape of the motor fixing frame 2 and is fixed on the bosses 9 through screws.
A sealing gasket 11 is arranged between the motor fixing frame 2 and the sealing plate 8. A sealing gasket 11 is arranged between the motor fixing frame 2 and the sealing plate 8, and the sealing gasket 11 is used for increasing the sealing performance of the sealing plate 8 and preventing the refrigerant flowing into the annular groove from flowing out, so that a complete refrigerant loop cannot be formed with the refrigerant inlet 4 and the refrigerant outlet 5.
At least one sealing groove 12 for installing a sealing ring is formed in the outer peripheral surfaces of the refrigerant inlet connector 6 and the refrigerant outlet connector 7, and an axial through hole 13 is formed in the axial direction of the refrigerant inlet connector 6 and the refrigerant outlet connector 7. At least one sealing groove 12 for installing a sealing ring is formed in the outer peripheral surfaces of the refrigerant inlet connector 6 and the refrigerant outlet connector 7, the sealing ring is installed on the sealing groove 12 to increase the sealing performance of the refrigerant inlet connector 6, the refrigerant outlet connector 7 and the shell 1, and therefore the refrigerant leakage is prevented and the motor cooling effect is influenced.
The motor 14 is fixed in the annular body of the motor fixing frame 2, and a crankshaft 15 is fixed on a rotor of the motor 14. The motor 14 is used for driving the crankshaft 15 to rotate, and the crankshaft 15 is used for driving the compressor to work.
One end of the crankshaft 15 is provided with a lower bearing 16, a lower support ring 17 is arranged on the lower bearing 16, a lower support 18 is arranged on the outer side of the lower support ring 17 of the lower bearing 16, an eccentric sleeve 19 is arranged at the other end of the crankshaft 15, an orbiting scroll 20 is arranged on the eccentric sleeve 19, and a static scroll 21 is arranged on the orbiting scroll 20 in a matching manner. One end of the crankshaft 15 is provided with a lower bearing 15, the lower bearing 15 is used for installing a lower support ring 17 and a lower bracket 18, the lower support ring 17 and the lower bracket 18 are used for supporting the crankshaft 15 and preventing the crankshaft 15 from deforming, an eccentric sleeve 19 has radial flexibility, wherein a movable scroll 20 and a fixed scroll 21 are oppositely arranged with a phase angle difference of 180 degrees, the eccentric sleeve 19 can move under the driving of the crankshaft 15 so as to drive the movable scroll 20, and the movable scroll 20 and the fixed scroll 21 are meshed to form a series of crescent closed cavities which are isolated from each other and continuously change in volume.
An upper support 22 is arranged at the bottom of the movable scroll disk 20, a main balance block 23 is arranged in the upper support 22 on the crankshaft 15, a support plate 24 is arranged between the upper support 22 and the movable scroll disk 20, and an oldham ring 25 is arranged between the support plate 24 and the movable scroll disk 20. When the compressor normally works, the fixed scroll disk 21 is tightly pressed on the movable scroll disk 20 by the axial force of gas in a middle pressure cavity formed on the back surface of the fixed scroll disk 21, the movable scroll disk 20 is tightly pressed on the supporting plate 24 on the upper bracket 22 due to the action of high-pressure gas in a compression cavity and the action force of the fixed scroll disk 21, the upper bracket 22 and the supporting plate 24 arranged at the bottom of the movable scroll disk 20 can play a good supporting role at the moment, so that the normal operation of the compressor is ensured, the main balance block 23 arranged in the upper bracket 22 on the crankshaft 15 is used for maintaining the balance of the crankshaft 15 in the rotation process, and meanwhile, under the anti-rotation limit of the cross slip ring 25, the movable scroll disk 20 makes translational motion around the center of the crankshaft.
The top of the fixed scroll 21 is provided with a sealing cover 26, the top end of the sealing cover 26 is provided with a partition plate 27, the partition plate 27 is provided with an exhaust port, and the exhaust port is provided with a check valve. The top of the fixed scroll 21 is provided with a sealing cover 26, the sealing cover 26 can axially float to form a sealed exhaust passage with a partition plate 27 during the operation of the compressor, an exhaust port is arranged on the partition plate 27 for exhausting gas in the exhaust passage, and a check valve is used for preventing external gas from flowing into the exhaust passage.
When the compressor is in specific operation, as shown in fig. 6, a part of refrigerant coming out of the condenser 02 is throttled by the first throttle valve 04, enters annular grooves formed in two end surfaces of the motor fixing frame 2 through the axial through hole 13 in the refrigerant inlet connector 6, is discharged out of the compressor 01 through the axial through hole 13 in the refrigerant outlet connector 7, and is then injected into a compressor middle pressure cavity through the check valve 06 for air supplement. Therefore, heat emitted by the motor of the compressor is taken away by partial refrigerant led out from the condenser 02, the invalid superheat degree of the refrigerant on the suction side can be effectively reduced, the performance, the reliability and the operation range of the compressor can be improved, meanwhile, the refrigerant behind the heat absorption motor is sprayed into the medium pressure cavity of the compressor after passing through the one-way valve 06, and the performance, the reliability and the operation range of the compressor can be further improved. The other part of the refrigerant coming out of the condenser 02 is throttled by the second throttle valve 03, enters the evaporator 05, exchanges heat, and finally enters the compressor 01.
Example 2
The other structure of this embodiment is the same as that of embodiment 1, except that the refrigerant channel 3 is formed by forming an annular groove on one of the upper end surface or the lower end surface of the motor fixing frame 2, and accordingly, only one independent refrigerant channel 3 can be formed on one end surface.
Example 3
The other structure of this embodiment is the same as that of embodiment 1, and as shown in fig. 7 to 8, the difference is that the refrigerant channel 3 is an annular through hole provided inside an annular body of the motor fixing frame 2, and the refrigerant inlet 4 and the refrigerant outlet 5 provided on the outer side wall of the motor fixing frame 2 are respectively communicated with the annular through hole. For the arrangement of the cooling medium channel 3, an annular through hole can be arranged in the annular body of the motor fixing frame 2, the annular through hole is used as the cooling medium channel 3, the motor can be cooled, and the sealing plate 8 and the sealing gasket 11 can be omitted.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a scroll compressor with motor cooling function, includes the casing, the inner wall of casing is fixed with motor mount, its characterized in that: the motor fixing frame is annularly arranged, a refrigerant channel is arranged on an annular body of the motor fixing frame, the outer side wall of the motor fixing frame is respectively provided with a refrigerant inlet and a refrigerant outlet which are communicated with the refrigerant channel, and the shell is fixedly provided with a refrigerant inlet connector which penetrates through the shell and is respectively communicated with the refrigerant inlet and a refrigerant outlet connector which is communicated with the refrigerant outlet.
2. A scroll compressor having a motor cooling function according to claim 1, wherein: and the refrigerant outlet connector is communicated with the middle compression cavity of the compressor.
3. A scroll compressor having a motor cooling function according to claim 1, wherein: the refrigerant channel is an annular groove formed in the upper end face or the lower end face of the motor fixing frame, the refrigerant inlet and the refrigerant outlet formed in the outer side wall of the motor fixing frame are respectively communicated with the annular groove, and a sealing plate for sealing the annular groove is fixed on the upper end face or the lower end face of the motor fixing frame.
4. A scroll compressor having a motor cooling function according to claim 3, wherein: and a sealing gasket is arranged between the motor fixing frame and the sealing plate.
5. A scroll compressor having a motor cooling function according to claim 1, wherein: the refrigerant channel is an annular through hole arranged inside an annular body of the motor fixing frame, and the refrigerant inlet and the refrigerant outlet which are formed in the outer side wall of the motor fixing frame are respectively communicated with the annular through hole.
6. A scroll compressor having a motor cooling function according to claim 1, wherein: the refrigerant inlet connector and the refrigerant outlet connector are provided with at least one sealing groove for mounting a sealing ring on the outer peripheral surface, and axial through holes are formed in the axial direction of the refrigerant inlet connector and the refrigerant outlet connector.
7. A scroll compressor having a motor cooling function according to claim 1, wherein: the motor is fixed in the annular body of the motor fixing frame, and a crankshaft is fixed on a rotor of the motor.
8. A scroll compressor having a motor cooling function according to claim 7, wherein: the improved crankshaft structure is characterized in that a lower bearing is arranged at one end of the crankshaft, a lower support ring is arranged on the lower bearing, a lower support is arranged on the outer side of the lower support ring, an eccentric sleeve is arranged at the other end of the crankshaft, a movable scroll disk is arranged on the eccentric sleeve, and a static scroll disk is arranged on the movable scroll disk in a matched mode.
9. A scroll compressor having a motor cooling function according to claim 8, wherein: the novel scroll compressor is characterized in that an upper support is arranged at the bottom of the movable scroll, a main balance block is arranged in the upper support on the crankshaft, a supporting plate is arranged between the upper support and the movable scroll, and a cross slip ring is arranged between the supporting plate and the movable scroll.
10. A scroll compressor having a motor cooling function according to claim 8, wherein: the top of the static vortex disc is provided with a sealing cover, the top end of the sealing cover is provided with a partition plate, the partition plate is provided with an exhaust port, and the exhaust port is provided with a check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337719.3A CN111043032A (en) | 2019-12-23 | 2019-12-23 | Scroll compressor with motor cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337719.3A CN111043032A (en) | 2019-12-23 | 2019-12-23 | Scroll compressor with motor cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111043032A true CN111043032A (en) | 2020-04-21 |
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ID=70237438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911337719.3A Pending CN111043032A (en) | 2019-12-23 | 2019-12-23 | Scroll compressor with motor cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111043032A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594189A (en) * | 2020-12-14 | 2021-04-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Heat abstractor, compressor and heat transfer system |
| WO2023280764A1 (en) * | 2021-07-06 | 2023-01-12 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Scroll machine |
-
2019
- 2019-12-23 CN CN201911337719.3A patent/CN111043032A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594189A (en) * | 2020-12-14 | 2021-04-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Heat abstractor, compressor and heat transfer system |
| WO2023280764A1 (en) * | 2021-07-06 | 2023-01-12 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Scroll machine |
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