CN106762634A - The single screw rod type refrigerating compressor that a kind of motor is independently cooled down - Google Patents
The single screw rod type refrigerating compressor that a kind of motor is independently cooled down Download PDFInfo
- Publication number
- CN106762634A CN106762634A CN201710016058.9A CN201710016058A CN106762634A CN 106762634 A CN106762634 A CN 106762634A CN 201710016058 A CN201710016058 A CN 201710016058A CN 106762634 A CN106762634 A CN 106762634A
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- Prior art keywords
- refrigerant
- stator
- motor
- motor side
- main shaft
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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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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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
- F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating
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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
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
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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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- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
Abstract
The single screw rod type refrigerating compressor that a kind of motor is independently cooled down, including opposing seal motor side and compressed side；Motor stator is fixedly arranged in motor side body, and its outer wall is brought into close contact with inner walls；Correspondence stator outer wall offers one first refrigerant channel in motor side inner walls, and the first refrigerant channel flat spin is surrounded on the outer wall of stator；Rotor is sheathed on electric machine main shaft, and the inside of main shaft offers the second refrigerant channel along its length, and its entrance is located at rear-end of spindle, and its outlet has multiple, and radial direction along main shaft is opened up and is communicated in main shaft side wall；The rear and front end of stator has each extended over Stator End Winding, and the Stator End Winding gap is arranged between the inwall and main shaft of motor side body；Two coolant injections mouthful are additionally provided with, the rear and front end that Stator End Winding is corresponded to respectively is set；Refrigerant collection middle outlet is offered on motor side body.The present invention realizes the independent cooling of motor part, and each part of motor can accomplish inside and outside comprehensive cooling.
Description
Technical field
The present invention relates to single screw rod type refrigerating compressor, and in particular to the single screw rod refrigeration that a kind of motor part independently cools down
Compressor.
Background technology
With the continuous renewal of single screw rod type refrigerating compressor technology, single-screw compressor air-conditioning, refrigeration, freezing with
And the field such as chemical industry is widely used.And different application fields has different to the range of operation of single screw compressor
It is required that.The range of operation of single-screw compressor how is expanded while hydraulic performance decline under reducing nominal condition to greatest extent
To adapt to an importance of the different unit applications as current single screw compressor technical research.
Determine that single screw compressor range of operation one of them important factor is the cooling of motor, can be produced during motor operation
Raw loss, including stator core loss, stator winding loss, rotor core loss, rotor aluminum loss and mechanical loss, these damages
Consumption is all transformed into heat energy, raises the temperature of motor each several part.In motor it is heat-resisting it is worst be winding insulating materials, work as motor
When temperature is no more than the maximum permissible temperature of insulating materials used, lasting a long time for insulating materials is reachable 15~20 years；Conversely,
If temperature exceedes above-mentioned maximum temperature, insulating materials is aging, become fragile, and shortens electrical machinery life, under serious conditions, insulation material
Material will be carbonized, go bad, losing insulating properties, so that burn-down of electric motor.There is data to suggest that：When temperature rise often rises 1 DEG C, the longevity of motor
Life will reduce 6 years.
Two principal elements for influenceing motor temperature rise are that motor is lost and extraneous cooling condition in itself, therefore to make motor
Temperature rise is no more than setting value, it is necessary to the temperature rise of motor is reduced in terms of two：One Shi Yaoshi electrical machinery plants from design and produce technique
Upper optimization motor body, makes the loss of electric machine be reduced to minimum；Two is the cooling effect that improve the external world, limits the temperature rise of motor
Within the scope of certain temperature.Wherein, the way for improving extraneous cooling effect is most commonly that refrigerant is blown into motor,
Take away the heat produced when motor works.
But the prior art has the following disadvantages：Traditional helical-lobe compressor, its motor be located at compressor suction side or
Exhaust side, the motor type of cooling is that air-breathing is cooled down or exhaust cooling, cools down the refrigerant gas of motor to be participated in refrigeration system
The main road refrigerant gas of circulation, therefore have that cooling effect of motor is poor, each position inhomogeneous cooling is even and temperature control is not smart
True problem, and the cooling of rotor, stator and electric machine main shaft often floats on surface, and its inside cannot be cooled down, therefore it is difficult
To meet the cooling needs of motor.
Therefore, how the deficiency that above-mentioned prior art is present, it is the problem to be researched and solved of the invention to become.
The content of the invention
It is an object of the invention to provide the single screw rod type refrigerating compressor that a kind of motor is independently cooled down.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
The single screw rod type refrigerating compressor that a kind of motor is independently cooled down, including a casing, the interior level along its length of the casing
An assembling chamber is offered, the assembling chamber includes a horizontally disposed motor side and is connected with a pressure in the motor side front end
Contracting side, and the motor side and compressed side opposing seal setting；Wherein, the motor side is used to assemble refrigeration compressor
Motor, the motor includes stator and rotor；The compressed side is used to assemble the screw rotor and star-wheel of refrigeration compressor；
The stator is fixedly arranged in motor side body, and shape and the shape of motor side housing cavity of stator match, and described
The outer wall of stator is brought into close contact with the inwall of motor side body；Wherein, it is described fixed also to be corresponded on the inwall of the motor side body
The outer wall of son offers one first refrigerant channel, first refrigerant channel in the horizontal direction spiral surrounding in the outer of the stator
Wall；Refrigerant import is further opened with the motor side body, the refrigerant import is connected with first refrigerant channel, this is first cold
A refrigerant exit is also provided with matchmaker's runner；
The rotor is arranged the middle part for being positioned at electric machine main shaft, and the relatively described stator rotation of rotor is set；The main shaft is along water
Square to being lying in the motor side body, the front end of main shaft is set with the rotating shaft connecting shaft of screw rotor in the compressed side；
The inside of the main shaft offers the second refrigerant channel along its length, and the entrance of second refrigerant channel is after main shaft
End, the outlet of the second refrigerant channel has multiple, and each outlet is opened up along the radial direction of main shaft, is communicated in the side wall of main shaft, and
Each outlet is respectively positioned on the front portion of the installation site of the rotor；The outlet of second refrigerant channel is in motor side body
It is internal；
Wherein, the rear and front end of the stator has each extended over Stator End Winding, and the Stator End Winding gap is arranged at
Between the inwall and the main shaft of the motor side body；Two coolant injections mouthful are additionally provided with the motor side body, it is right respectively
Answer the rear and front end of Stator End Winding to set, and simultaneously towards between the inwall of Stator End Winding and motor side body and
Space injection refrigerant between Stator End Winding and main shaft；
Refrigerant collection middle outlet is offered on the motor side body.
Relevant content in above-mentioned technical proposal is explained as follows：
1. in such scheme, by the setting of first refrigerant channel, the outer surface of stator can be cooled down.
2. in such scheme, " outer wall of the stator is brought into close contact with the inwall of assembling chamber " is designed whereby, can be with structure
It is closed space into the first refrigerant channel, is able to define the flow circuits of refrigerant.
3. in such scheme, after refrigerant enters the first refrigerant channel from refrigerant import, due to the first refrigerant channel spiral shell
Curl up on stator, therefore during refrigerant flows out via the first refrigerant channel from refrigerant exit, refrigerant will be taken away fixed
The heat that son is operationally produced, and then reach the purpose of cooling stator.
4. in such scheme, second refrigerant channel is cooled down to the inside of main shaft, and then in rotor
Side cools down.
5. in such scheme, " outlet of the second refrigerant channel has multiple, and each outlet is opened up along the radial direction of main shaft,
It is communicated in the side wall of main shaft ", constitute when rotor rotates at a high speed, the refrigerant during the second refrigerant channel is respectively exported can be by centrifugal force
Effect throw away each outlet, and then cause that the inside of the second refrigerant channel produces negative pressure, obtain so that the second refrigerant channel
In automatic the second refrigerant channel of suction by refrigerant of entrance, and then the dynamic force-summing device for providing high pressure refrigerant is saved, reduced
Equipment cost.
6. in such scheme, by the setting of two coolant injections mouthful, surface can be carried out to rotor and main shaft and cooled, together
When can to Stator End Winding and stator inner side cool down.With reference to setting for the first refrigerant channel and the second refrigerant channel
Put, allow this case each part of motor in motor side is carried out it is inside and outside it is comprehensive cool, greatly improve cold
But effect.
7. in such scheme, by the setting of the refrigerant collection middle outlet, the first refrigerant channel, the second refrigerant channel and
The outflow refrigerant of coolant injection mouthful can enter in motor side body, and collect outflow via the refrigerant collection middle outlet.
8. in such scheme, the refrigerant exit is opened on the motor side body；The refrigerant import is connected with institute
The front end of the first refrigerant channel is stated, the refrigerant exit is connected with the rear end of first refrigerant channel.
9. in such scheme, first refrigerant channel is provided with two, and two the first refrigerant channels each correspond to a refrigerant
Import, the two refrigerant imports correspondence stator medium position is simultaneously opened on motor side body, two the first refrigerant channels it is cold
Matchmaker's outlet is opened up towards the two ends of the stator, and connects the inside of the motor side body, constitutes the first refrigerant stream described in two
Road is symmetrical arranged on stator.Design whereby, the refrigerant in two first refrigerant channels is by respective refrigerant exit from stator
Both sides flow into the inside of motor side body, and are flowed out by the refrigerant collection middle outlet.Therefore the cooling of stator surface can be made
The upper grade of cooling-down effect.
10. in such scheme, each described outlet of second refrigerant channel is uniformly distributed along the circumference of main shaft.Set whereby
Meter, can improve the effect that centrifugal force flow out to refrigerant so that negative regulation that the second refrigerant channel inside produces and effective, enter
And ensure the reliability of rotor cooling.
Operation principle of the present invention and advantage are as follows：
The single screw rod type refrigerating compressor that a kind of motor of the present invention is independently cooled down, including opposing seal motor side and compressed side；
Motor stator is fixedly arranged in motor side body, and its shape matches with the shape of housing cavity, and its outer wall and housing inwall
It is brought into close contact；The outer wall of correspondence stator offers one first refrigerant channel on the inwall of motor side body, first refrigerant channel
Flat spin is surrounded on the outer wall of stator；Rotor is sheathed on electric machine main shaft, and the inside of main shaft offers along its length
Two refrigerant channels, its entrance is located at rear-end of spindle, and its outlet has multiple, and radial direction along main shaft is opened up and is communicated in main shaft side
Wall；The rear and front end of stator has each extended over Stator End Winding, and the Stator End Winding gap is arranged at motor side body
Between inwall and main shaft；Two coolant injections mouthful are additionally provided with, the rear and front end that Stator End Winding is corresponded to respectively is set；Motor side body
On offer refrigerant collection middle outlet.Compared to existing technologies, the present invention can realize the independent cooling of motor part, and motor
Stator and rotor further realize the independent cooling of difference so that stator, rotor include the cooling of electric machine main shaft more
Uniformly, each part can accomplish inside and outside comprehensive cooling, and the control of not only good cooling results, and chilling temperature is also more accurate.
Brief description of the drawings
Accompanying drawing 1 is the end face structure schematic diagram of the embodiment of the present invention；
Accompanying drawing 2 be Fig. 1 in R-R to cross section structure diagram；
Accompanying drawing 3 be Fig. 1 in P-P to cross section structure diagram；
Accompanying drawing 4 is the cross-sectional view of embodiment of the present invention motor side；
Accompanying drawing 5 is the decomposing schematic representation of embodiment of the present invention Stator and electrical machine side body；
Accompanying drawing 6 is the structural representation of embodiment of the present invention electric machine main shaft；
Accompanying drawing 7 is the cross-sectional view of Fig. 6；
Accompanying drawing 8 is the structural representation that embodiment of the present invention rotor is incorporated into main shaft.
In the figures above：1. casing；2. motor side；3. compressed side；4. stator；5. rotor；6. screw rotor；7. star-wheel；
8. motor side body；9. the first refrigerant channel；10. refrigerant import；11. refrigerant exits；12. main shafts；13. second refrigerant channels；
14. entrances；15. outlets；16. Stator End Windings；17. coolant injections mouthful；18. refrigerant collection middle outlets.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment：Referring to shown in accompanying drawing 1~8, the single screw rod type refrigerating compressor that a kind of motor is independently cooled down, including a casing 1,
Level offers an assembling chamber along its length in the casing 1, the assembling chamber include a horizontally disposed motor side 2 with
And the compressed side 3 in the front end of the motor side 2 is connected with, and the motor side 2 and the opposing seal of the compressed side 3 are set；Wherein,
The motor side 2 is used to assemble the motor of refrigeration compressor, and the motor includes stator 4 and rotor 5；The compressed side 3 is used for
Assemble the screw rotor 6 and star-wheel 7 of refrigeration compressor.
The stator 4 is fixedly arranged in motor side body 8, the shape of stator 4 and the shape phase of the inner chamber of motor side body 8
Match somebody with somebody, and the outer wall of the stator 4 is brought into close contact with the inwall of motor side body 8.Wherein, on the inwall of the motor side body 8
The outer wall for also corresponding to the stator 4 offers one first refrigerant channel 9, first refrigerant channel 9 spiral surrounding in the horizontal direction
In the outer wall of the stator 4, design whereby, may be constructed the first refrigerant channel 9 is closed space, is able to define the stream of refrigerant
Moving-wire road；Refrigerant import 10 is further opened with the motor side body 8, the refrigerant import 10 is connected with first refrigerant channel
9, a refrigerant exit 11 is also provided with first refrigerant channel 9；When refrigerant from refrigerant import 10 enter the first refrigerant channel 9 it
Afterwards, because the spiral winding of the first refrigerant channel 9 is on stator 4, therefore when refrigerant is via the first refrigerant channel 9 from refrigerant exit 11
During outflow, refrigerant will take away the heat that stator 4 is operationally produced, and then reach the purpose of cooling stator 4.
The rotor 5 is arranged the middle part for being positioned at electric machine main shaft 12, and rotor 5 is rotated relative to the stator 4 and set；It is described
Main shaft 12 is lying in the motor side body 8 in the horizontal direction, the front end of main shaft 12 and screw rotor 6 in the compressed side 3
Rotating shaft connecting shaft set；The inside of the main shaft 12 offers the second refrigerant channel 13 along its length, the second refrigerant stream
The entrance 14 in road 13 has multiple located at the rear end of main shaft 12, the outlet 15 of the second refrigerant channel 13, and each outlet 15 is along master
The radial direction of axle 12 is opened up, and is communicated in the side wall of main shaft 12, is constituted when rotor 5 rotates at a high speed, each outlet of the second refrigerant channel 13
Refrigerant in 15 can throw away each outlet 15 by the effect of centrifugal force, and then cause that the inside of the second refrigerant channel 13 produces
Negative pressure, obtains so that the entrance of the second refrigerant channel 13 is automatic to suck the second refrigerant channel 13 by refrigerant, so save for
The dynamic force-summing device of high pressure refrigerant is provided, equipment cost is reduced.Each outlet 15 of the second refrigerant channel 13 is respectively positioned on described turning
The front portion of the installation site of son 5；The outlet 15 of second refrigerant channel 13 is communicated in the inside of motor side body 8；Described
Two refrigerant channels 13 are cooled down to the inside of main shaft 12, and then inner side to rotor 5 cools down.
Wherein, the rear and front end of the stator 4 has been each extended between Stator End Winding 16, and the Stator End Winding 16
Gap is arranged between the inwall of the motor side body 8 and the main shaft 12；The spray of two refrigerants is additionally provided with the motor side body 8
Loophole 17, the Stator End Winding 16 of Stator End Winding 16 and rear end that two coolant injection mouthful 17 corresponds to front end respectively sets
Put, and simultaneously towards between the inwall of Stator End Winding 16 and motor side body 8 and Stator End Winding 16 and main shaft 12
Between space injection refrigerant；By the setting of two coolant injections mouthful 17, surface can be carried out to rotor 5 and main shaft 12 and cooled,
Stator End Winding 16 and the inner side of stator 4 can be cooled down simultaneously.With reference to the first refrigerant channel 9 and the second refrigerant stream
The setting in road 13, allow this case each part of motor in motor side 2 is carried out it is inside and outside it is comprehensive cool, pole
Improve cooling effect greatly.
Refrigerant collection middle outlet 18, the first refrigerant channel 9 and the second refrigerant channel 13 are offered on the motor side body 8
Outflow refrigerant can be directly entered in motor side body 8, and collect outflow via the refrigerant collection middle outlet 18.
Wherein, first refrigerant channel 9 is provided with two, and two the first refrigerant channels 9 each correspond to a refrigerant imports 10,
The correspondence medium position of stator 4 of two refrigerant import 10 is simultaneously opened on motor side body 8, two the first refrigerant channels 9 it is cold
Matchmaker's outlet 11 is opened up towards the two ends of the stator 4, and connects the inside of the motor side body 8, and first is cold described in composition two
Matchmaker's runner 9 is symmetrical arranged on stator 4.Design whereby, the refrigerant in two first refrigerant channels 9 passes through respective refrigerant exit 11
The inside of motor side body 8 is flowed into from the both sides of stator 4, and is flowed out by the refrigerant collection middle outlet 18.Therefore it is fixed to make
The upper grade of the effect that cools on sub 4 surfaces.
Wherein, each described outlet 15 of second refrigerant channel 13 is uniformly distributed along the circumference of main shaft 12.Design whereby,
The effect that centrifugal force flows out to refrigerant can be improved so that negative regulation that the inside of the second refrigerant channel 13 produces and effectively, entered
And ensure the reliability of the cooling of rotor 5.
The single screw rod type refrigerating compressor that a kind of motor of the present invention is independently cooled down, including opposing seal motor side and compression
Side；Motor stator is fixedly arranged in motor side body, and its shape matches with the shape of housing cavity, and its outer wall is interior with housing
Wall is brought into close contact；The outer wall of correspondence stator offers one first refrigerant channel on the inwall of motor side body, the first refrigerant stream
Road flat spin is surrounded on the outer wall of stator；Rotor is sheathed on electric machine main shaft, and the inside of main shaft offers along its length
Second refrigerant channel, its entrance is located at rear-end of spindle, and its outlet has multiple, and radial direction along main shaft is opened up and is communicated in main shaft
Side wall；The rear and front end of stator has each extended over Stator End Winding, and the Stator End Winding gap is arranged at motor side body
Inwall and main shaft between；Two coolant injections mouthful are additionally provided with, the rear and front end that Stator End Winding is corresponded to respectively is set；Motor side shell
Refrigerant collection middle outlet is offered on body.Compared to existing technologies, the present invention can realize the independent cooling of motor part, and electricity
The stator and rotor of machine further realize the independent cooling of difference so that stator, rotor include the cooling of electric machine main shaft more
Plus it is uniform, each part can accomplish inside and outside comprehensive cooling, and the control of not only good cooling results, and chilling temperature is also more accurate
Really.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (4)
1. the single screw rod type refrigerating compressor that a kind of motor is independently cooled down, it is characterised in that：
Including a casing, level offers an assembling chamber along its length in the casing, and the assembling chamber includes horizontal cloth
The motor side put and a compressed side in the motor side front end is connected with, and the motor side and the compressed side opposing seal
Set；Wherein, the motor side is used to assemble the motor of refrigeration compressor, and the motor includes stator and rotor；The compression
Side is used to assemble the screw rotor and star-wheel of refrigeration compressor；
The stator is fixedly arranged in motor side body, and shape and the shape of motor side housing cavity of stator match, and described
The outer wall of stator is brought into close contact with the inwall of motor side body；Wherein, it is described fixed also to be corresponded on the inwall of the motor side body
The outer wall of son offers one first refrigerant channel, first refrigerant channel in the horizontal direction spiral surrounding in the outer of the stator
Wall；Refrigerant import is further opened with the motor side body, the refrigerant import is connected with first refrigerant channel, this is first cold
A refrigerant exit is also provided with matchmaker's runner；
The rotor is arranged the middle part for being positioned at electric machine main shaft, and the relatively described stator rotation of rotor is set；The main shaft is along water
Square to being lying in the motor side body, the front end of main shaft is set with the rotating shaft connecting shaft of screw rotor in the compressed side；
The inside of the main shaft offers the second refrigerant channel along its length, and the entrance of second refrigerant channel is after main shaft
End, the outlet of the second refrigerant channel has multiple, and each outlet is opened up along the radial direction of main shaft, is communicated in the side wall of main shaft, and
Each outlet is respectively positioned on the front portion of the installation site of the rotor；The outlet of second refrigerant channel is in motor side body
It is internal；
Wherein, the rear and front end of the stator has each extended over Stator End Winding, and the Stator End Winding gap is arranged at
Between the inwall and the main shaft of the motor side body；Two coolant injections mouthful are additionally provided with the motor side body, it is right respectively
Answer the rear and front end of Stator End Winding to set, and simultaneously towards between the inwall of Stator End Winding and motor side body and
Space injection refrigerant between Stator End Winding and main shaft；
Refrigerant collection middle outlet is offered on the motor side body.
2. refrigeration compressor according to claim 1, it is characterised in that：The refrigerant exit is opened in the motor side shell
On body；The refrigerant import is connected with the front end of first refrigerant channel, and the refrigerant exit is connected with first refrigerant
The rear end of runner.
3. refrigeration compressor according to claim 1, it is characterised in that：First refrigerant channel is provided with two, two
First refrigerant channel each corresponds to a refrigerant import, and the two refrigerant imports correspondence stator medium position is simultaneously opened in motor side shell
On body, two refrigerant exits of the first refrigerant channel are opened up towards the two ends of the stator, and connect the motor side body
Inside, the first refrigerant channel described in composition two is symmetrical arranged on stator.
4. refrigeration compressor according to claim 1, it is characterised in that：Each described outlet edge of second refrigerant channel
The circumference of main shaft is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710016058.9A CN106762634A (en) | 2017-01-10 | 2017-01-10 | The single screw rod type refrigerating compressor that a kind of motor is independently cooled down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710016058.9A CN106762634A (en) | 2017-01-10 | 2017-01-10 | The single screw rod type refrigerating compressor that a kind of motor is independently cooled down |
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| CN106762634A true CN106762634A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710016058.9A Pending CN106762634A (en) | 2017-01-10 | 2017-01-10 | The single screw rod type refrigerating compressor that a kind of motor is independently cooled down |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435636A (en) * | 2017-10-11 | 2017-12-05 | 珠海格力电器股份有限公司 | Compressor cooling structure, compressor and air-conditioning system |
| CN109442779A (en) * | 2018-12-13 | 2019-03-08 | 珠海格力智能装备有限公司 | Mainshaft mechanism and spindle cooling device with it |
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| CN206377027U (en) * | 2017-01-10 | 2017-08-04 | 麦克维尔空调制冷(苏州)有限公司 | The single screw rod type refrigerating compressor that a kind of motor is independently cooled down |
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| JP2006257994A (en) * | 2005-03-17 | 2006-09-28 | Kobe Steel Ltd | Compressor |
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| CN202210737U (en) * | 2011-09-21 | 2012-05-02 | 珠海格力电器股份有限公司 | Air conditioner and refrigerating machine motor cooling structure thereof |
| CN203430779U (en) * | 2013-08-13 | 2014-02-12 | 福建雪人压缩机科技有限公司 | Semi-closed ammonia variable-frequency high-speed screw refrigerating compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107435636A (en) * | 2017-10-11 | 2017-12-05 | 珠海格力电器股份有限公司 | Compressor cooling structure, compressor and air-conditioning system |
| CN109442779A (en) * | 2018-12-13 | 2019-03-08 | 珠海格力智能装备有限公司 | Mainshaft mechanism and spindle cooling device with it |
| CN109442779B (en) * | 2018-12-13 | 2024-04-02 | 珠海格力智能装备有限公司 | Main shaft mechanism and main shaft cooling system with same |
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Application publication date: 20170531 |