CN207393479U - Compressor motor cooling structure, compressor and refrigerating system - Google Patents
Compressor motor cooling structure, compressor and refrigerating system Download PDFInfo
- Publication number
- CN207393479U CN207393479U CN201721501491.3U CN201721501491U CN207393479U CN 207393479 U CN207393479 U CN 207393479U CN 201721501491 U CN201721501491 U CN 201721501491U CN 207393479 U CN207393479 U CN 207393479U
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- Prior art keywords
- motor
- compressor
- guide frame
- runner
- cooling structure
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- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 239000003507 refrigerant Substances 0.000 claims abstract description 51
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 11
- 239000002826 coolant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005347 demagnetization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to a compressor motor cooling structure, compressor and refrigerating system, wherein, compressor motor cooling structure includes casing, motor and guide structure, the motor is located in the casing, the motor is equipped with the runner, guide structure is used for leading to the refrigerant the runner. The utility model discloses a set up guide structure and lead to the runner with the refrigerant, can make the refrigerant pass through inside the motor more effectively, combine to set up in the runner of motor, can increase the area of contact of refrigerant and motor, improve the cooling effect to the motor.
Description
Technical field
The utility model is related to a kind of refrigeration technology field more particularly to compressor electric motor cooling structure, compressor and systems
Cooling system.
Background technology
Screw compressor can be divided into open-type, semi-enclosed two by the difference of compressor and motor bind mode
Kind.Open-type helical-lobe compressor is that compressor is connected by shaft coupling with motor, needs to install axle envelope on compressor rotor shaft, with
Anti- refrigerant and oil leak；Motor is open type air-cooling motor.Semi-enclosed helical-lobe compressor is electric machine built-in to compressor
In, motor and compressor one, compressor housing can effectively prevent the leakage of refrigerant and lubricating oil, and adopted by flanged joint
Motor is cooled down with refrigerant, ensures the reliable cooling of motor；Motor is semiclosed motor.
It is simple in structure since semi-hermetic screw compressor has good seal performance, the characteristics of transmission parts are few, the model of application
It encloses increasingly wider.Due in electric machine built-in to compressor, being cooled down by compressor air suction refrigerant, in order to ensure that motor can have
Effect cooling, is disposed with motor cooling passageway, low temperature suction refrigerant flows in motor cooling passageway, with motor outside motor
Heat exchange is carried out, the caloric value of motor is taken away.
Concrete structure is：Motor is mounted in the housing of compressor, has a plurality of muscle to be supported motor stator in housing,
The outer wall of motor and the inner wall of housing form motor stator coolant flow channel, and motor stator inner surface and rotor outer surface are formed
Rotor coolant flow channel, since rotor coolant flow channel is also the design air gap of motor, the design air gap of motor is generally very
Small, only 1~2mm, based on this reason, rotor is unfavorable for refrigerant and enters rotor cooling stream in rotation process
Road, the cooling effect of rotor are poor.
Utility model content
The purpose of this utility model is to propose a kind of compressor electric motor cooling structure, compressor and refrigeration system, wherein, pressure
Contracting machine motor cooling can solve the problems, such as that refrigerant is not easily accessible coolant flow channel.
To achieve the above object, the utility model provides a kind of compressor electric motor cooling structure, including housing, motor
And guide frame, the motor are arranged in the housing, the motor is equipped with runner, and the guide frame is used to guide into refrigerant
The runner.
One preferably or in alternative embodiment, the runner includes first flow, and the guide frame includes first and is oriented to
Structure, the first flow are arranged on the rotor of the motor, and first guide frame can guide refrigerant into described first-class
Road.
One preferably or in alternative embodiment, first guide frame is arranged on the rotor.
One preferably or in alternative embodiment, the runner includes second flow channel, and the second flow channel is arranged on the motor
Stator.
One preferably or in alternative embodiment, the guide frame is obliquely installed, and the first end of the guide frame is separate
The central axes of the motor, the second end of the guide frame is close to the central axes of the motor, and the first of the guide frame
Opposite second end is held to be tilted to the rotation direction of the rotor of the motor.
One preferably or in alternative embodiment, the angle of inclination of the guide frame is 10 °~30 °.
One preferably or in alternative embodiment, the first end of the guide frame and the entrance outer rim of the runner are tangent,
The second end of the guide frame extends to the central axes direction of the motor.
One preferably or in alternative embodiment, including a plurality of, each runner is correspondingly arranged described in one leads the runner
To structure.
One preferably or in alternative embodiment, the central axes of the runner are with the axis parallel of the motor or with pre-
If angle.
One preferably or in alternative embodiment, for the runner including a plurality of, each runner surrounds the axis of the motor
Line is set.
One preferably or in alternative embodiment, the runner includes the through hole or groove arranged on the motor.
To achieve the above object, the utility model provides a kind of compressor, is cooled down including above-mentioned compressor electric motor
Structure.
One preferably or in alternative embodiment, the compressor is semi-hermetic screw compressor.
To achieve the above object, the utility model provides a kind of compressor refrigeration system, including above-mentioned compressor.
Based on above-mentioned technical proposal, the utility model at least has the advantages that：
The utility model can make refrigerant more effectively by motor by the way that guide frame is set to guide refrigerant into runner
Portion with reference to the runner for being arranged at motor, can increase the contact area of refrigerant and motor, improve the cooling effect to motor.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms the part of the application,
The schematic description and description of the utility model is not formed for explaining the utility model to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the schematic diagram for the compressor electric motor cooling structure that the utility model embodiment provides；
Fig. 2 is the structure diagram for the motor stator that the utility model embodiment provides；
Fig. 3 is the structure diagram for the rotor that the utility model embodiment provides；
Fig. 4 is the schematic diagram that the guide vane structure that the utility model embodiment provides is arranged on rotor；
Fig. 5 is the schematic front view of Fig. 4.
Attached figure label：
1- housings；
2- motors；21- rotors；22- stators；
3- runners；31- first flows；32- second flow channels；
4- guide frames；
5- passages；51- first passages；52- second channels.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, the technical solution in embodiment is carried out clear, complete
Ground describes.Obviously, described embodiment is only the part of the embodiment of the utility model, instead of all the embodiments.
Embodiment based on the utility model, the institute that those of ordinary skill in the art are obtained without creative efforts
There is other embodiment, shall fall within the protection scope of the present invention.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of description the utility model and simplifies description rather than instruction or imply signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this practicality
The limitation of novel protected scope.
As shown in Figure 1, it is the illustrative examples of compressor electric motor cooling structure provided by the utility model, in the signal
Property embodiment in, compressor electric motor cooling structure include housing 1, motor 2 and guide frame 4 (as shown in Figure 4, Figure 5), motor 2
In housing 1, motor 2 is equipped with runner 3, and guide frame 4 is used to guide refrigerant into runner 3.
Above-mentioned housing 1 can be the housing of compressor.
The utility model embodiment can be such that refrigerant more effectively leads to by the way that guide frame 4 is set to guide refrigerant into runner 3
It crosses inside motor, is incorporated in the runner 3 of the setting of motor 2, the contact area of refrigerant and motor 2 can be increased, improved to motor 2
Cooling effect.
Runner 3 in the utility model embodiment can include first flow 31, and guide frame 4 can include first and be oriented to
Structure, first flow 31 are arranged on the rotor 21 (as shown in Figure 3) of motor 2, and the first guide frame can guide refrigerant into first-class
Road 31 (as shown in Figure 4).Optionally, first flow 31 runs through along the refrigerant suction side of compressor to refrigerant discharge extreme direction and is arranged on
The inside of rotor 21, first flow 31 run through the both ends of rotor 21, and refrigerant can enter first in the refrigerant suction side of compressor
Runner 31 flows to the refrigerant outlet side of compressor by first flow 31.
By inside the rotor 21 of motor 2 set allow refrigerant by first flow 31, can increase rotor 21 with
The contact area of refrigerant solves the technical issues of 2 inhomogeneous cooling of motor is even, improves the reliability of motor 2；And by setting the
One guide frame guides refrigerant into first flow 31, can solve in 21 rotation process of rotor, refrigerant is not easily accessible first flow
31 the technical issues of, improves the flow that refrigerant enters first flow 31, and then improves the cooling effect of rotor 21.
Also, frequency motor electric efficiency under low-power is poor, caloric value is big due to determining, and variable-frequency motor rotor is in high-temperature condition
Easy demagnetization down, the utility model embodiment can be solved effectively the problem of determining frequency motor cooling effect is bad at low load,
And the technical barrier of variable-frequency motor rotor easy demagnetization at high temperature can be solved.
As shown in Figure 4, Figure 5, in above-described embodiment, the first guide frame can be arranged on the rotor 21 of motor 2.Optionally,
First guide frame is arranged on the end face of rotor 21, i.e., positioned at the refrigerant suction side of compressor.Since rotor 21 is in rotation process,
It is unfavorable for refrigerant and enters first flow 31, the utility model embodiment is by setting the first guide frame that can be convenient for drawing refrigerant
Enter first flow 31, improve the cooling effect of rotor 21.
Optionally, the first guide frame can also be arranged on the stator 22 of motor.
Runner 3 in the utility model embodiment can also include second flow channel 32, and second flow channel 32 can be arranged on motor 2
Stator 22 (as shown in Figure 2).Optionally, second flow channel 32 runs through along the refrigerant suction side of compressor to refrigerant discharge extreme direction
Arranged on the inside of stator 22, second flow channel 32 runs through the both ends of stator 22, and refrigerant can enter in the refrigerant suction side of compressor
Second flow channel 32 flows to the refrigerant outlet side of compressor by second flow channel 32.
By inside the stator 22 of motor 2 set allow refrigerant by second flow channel 32, can increase stator 22 with
The contact area of refrigerant solves the technical issues of 2 inhomogeneous cooling of motor is even, improves the reliability of motor 2.
In above-described embodiment, guide frame 4 can also include the second guide frame, and the second guide frame can draw refrigerant
To second flow channel 32.
One preferably or in alternative embodiment, the second guide frame can be arranged on the rotor 21 of motor 2.
Another preferably or in alternative embodiment, the second guide frame can be arranged on the stator 22 of motor 2.
The utility model embodiment inside the rotor 21 of 22 inside of stator of motor 2 and motor 2 by increasing for cold
But runner 3 can increase the stator 22 of motor 2 and contact of the rotor 21 of the contact area of refrigerant and motor 2 with refrigerant
Area, especially runner can add heat exchange area, make the stator 22 of motor 2 integrally through the both ends of stator 22 and rotor 21
It is more preferable with the cooling effect of rotor 21.
In above-mentioned each embodiment, as shown in Figure 4, Figure 5, guide frame 4 can be obliquely installed, and the first of guide frame 4
Central axes of the end away from motor 2, close to the central axes of motor 2, the first end of guide frame 4 is opposite for the second end of guide frame 4
Second end is tilted to the rotation direction of the rotor 21 of motor 2.
Optionally, the angle of inclination of guide frame 4 can be 10 °~30 °.
In the utility model embodiment, the inclined direction of guide frame 4 is consistent with the rotation direction of the rotor 21 of motor 2,
The purpose for the arrangement is that more effectively refrigerant can be directed in the first flow 31 set in rotor 21.
Said structure is particularly suitable for inverter screw compressor, and when 2 rotating speed of motor is high, the caloric value of motor 2 will increase
Greatly, the rotating speed of guide frame 4 will increase, and being led through the gas flow come will increase；When 2 rotating speed of motor is low, motor 2
Caloric value will reduce, and the rotating speed of guide frame 4 will reduce, and being led through the gas flow come will reduce；Therefore, it is possible to root
It automatically adjusts according to 2 rotating speed of motor, is finally reached the reliable cooling of motor 2.
According to the rotation direction of motor 2, the first end of guide frame 4 and the entrance outer rim of runner 3 are tangent, guide frame 4
Central axes direction from second end to motor 2 extend.The first end of guide frame 4 is close to the entrance of runner 3, i.e. guide frame 4
Front retaining surface root close to the entrance of runner 3, refrigerant can be faster directed to the inlet of runner 3.
The compressor electric motor cooling structure that the utility model embodiment provides, runner 3 can include a plurality of, each runner 3
A guide frame 4 can be correspondingly arranged.
In runner 3 includes a plurality of embodiment, the central axes that each runner 3 can surround motor 2 are set.Optionally, respectively
Runner 3 can surround motor 2 central axes be uniformly arranged, the radian between the entrance of adjacent two runners 3 10 °~30 ° it
Between, it is therefore an objective to ensure there is enough coolings runner 3 inside the rotor 21 and stator 22 of motor 2.
The compressor electric motor cooling structure that the utility model embodiment provides, the central axes of runner 3 and the central axes of motor 2
Can be parallel, alternatively, the central axes of runner 3 and the central axes of motor 2 can also have default angle.
Runner 3 in above-mentioned each embodiment can be the through hole arranged on motor 2, and the diameter of through hole existsBetween, the cold medium flux for being sized to influence and flowing through through hole of through hole directly affects the cold of motor 2
But effect.
The through hole that 22 inside of stator of motor 2 is set is located among dynamo sheet, the 21 inside setting of rotor of motor 2
Through hole is located among rotor silicon steel sheet, can effectively be exchanged heat with via refrigerant with the internal heat for ensureing motor 2.
Runner 3 in above-mentioned each embodiment or the groove arranged on motor 2.
In order to improve the cooling effect of motor 2, the utility model embodiment also between the stator 22 of motor 2 and housing 1,
And between the stator 22 of motor 2 and the rotor 21 of motor 2 formed allow refrigerant by passage 5.
Specifically, as shown in Figure 1, between the stator 22 of motor 2 and housing 1 set allow refrigerant by first passage
51；Between the stator 22 of motor 2 and the rotor 21 of motor 2 formed allow refrigerant by second channel 52.
The utility model embodiment additionally provides a kind of compressor, including the compressor electric motor in any of the above-described embodiment
Cooling structure.
Compressor in above-described embodiment can be semi-hermetic screw compressor.
The utility model embodiment additionally provides a kind of refrigeration system, including above-mentioned compressor.
In the description of the utility model, it is to be understood that limit zero using the words such as " first ", " second "
Part, it is only for convenient for being distinguished to above-mentioned parts, such as without Stated otherwise, above-mentioned word there is no particular meaning,
Therefore it is not intended that limitation to scope of protection of the utility model.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
Among scope.
Claims (14)
1. a kind of compressor electric motor cooling structure, it is characterised in that：It is described including housing (1), motor (2) and guide frame (4)
Motor (2) is arranged in the housing (1), and the motor (2) is equipped with runner (3), and the guide frame (4) is used to guide into refrigerant
The runner (3).
2. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The runner (3) includes first flow
(31), the guide frame (4) includes the first guide frame, and the first flow (31) is arranged on the rotor of the motor (2)
(21), refrigerant can be guided into the first flow (31) by first guide frame.
3. compressor electric motor cooling structure as claimed in claim 2, it is characterised in that：First guide frame is arranged on described
Rotor (21).
4. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The runner (3) includes second flow channel
(32), the second flow channel (32) is arranged on the stator (22) of the motor (2).
5. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The guide frame (4) is obliquely installed,
Central axes of the first end away from the motor (2) of the guide frame (4), the second end of the guide frame (4) is close to institute
State the central axes of motor (2), the first end opposite second end of the guide frame (4) is to the rotor (21) of the motor (2)
Rotation direction tilts.
6. compressor electric motor cooling structure as claimed in claim 5, it is characterised in that：The inclination angle of the guide frame (4)
It spends for 10 °~30 °.
7. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The first end of the guide frame (4)
Tangent with the entrance outer rim of the runner (3), the second end of the guide frame (4) is to the central axes direction of the motor (2)
Extension.
8. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The runner (3) is each including a plurality of
The runner (3) is correspondingly arranged a guide frame (4).
9. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The central axes of the runner (3) and institute
State the axis parallel of motor (2) or with default angle.
10. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The runner (3) is including a plurality of, respectively
The runner (3) is set around the central axes of the motor (2).
11. compressor electric motor cooling structure as described in claim 1, it is characterised in that：The runner (3) includes being arranged on described
The through hole or groove of motor (2).
12. a kind of compressor, it is characterised in that：It cools down and ties including such as claim 1~11 any one of them compressor electric motor
Structure.
13. compressor as claimed in claim 12, it is characterised in that：The compressor is semi-hermetic screw compressor.
14. a kind of refrigeration system, it is characterised in that：Including compressor as described in claim 12 or 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501491.3U CN207393479U (en) | 2017-11-13 | 2017-11-13 | Compressor motor cooling structure, compressor and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501491.3U CN207393479U (en) | 2017-11-13 | 2017-11-13 | Compressor motor cooling structure, compressor and refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393479U true CN207393479U (en) | 2018-05-22 |
Family
ID=62326117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721501491.3U Active CN207393479U (en) | 2017-11-13 | 2017-11-13 | Compressor motor cooling structure, compressor and refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676266A (en) * | 2017-11-13 | 2018-02-09 | 珠海格力电器股份有限公司 | Compressor motor cooling structure, compressor and refrigerating system |
-
2017
- 2017-11-13 CN CN201721501491.3U patent/CN207393479U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676266A (en) * | 2017-11-13 | 2018-02-09 | 珠海格力电器股份有限公司 | Compressor motor cooling structure, compressor and refrigerating system |
| WO2019090940A1 (en) * | 2017-11-13 | 2019-05-16 | 格力电器（武汉）有限公司 | Compressor electric motor cooling structure, compressor and refrigeration system |
| CN107676266B (en) * | 2017-11-13 | 2019-07-19 | 珠海格力电器股份有限公司 | Compressor motor cooling structure, compressor and refrigerating system |
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