CN113541345A - Stator assembly, compressor, air conditioning equipment and filling method of heat conductor - Google Patents
Stator assembly, compressor, air conditioning equipment and filling method of heat conductor Download PDFInfo
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- CN113541345A CN113541345A CN202010286971.2A CN202010286971A CN113541345A CN 113541345 A CN113541345 A CN 113541345A CN 202010286971 A CN202010286971 A CN 202010286971A CN 113541345 A CN113541345 A CN 113541345A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004378 air conditioning Methods 0.000 title claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 76
- 238000009413 insulation Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 17
- 239000002470 thermal conductor Substances 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- KNDQHSIWLOJIGP-UMRXKNAASA-N (3ar,4s,7r,7as)-rel-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione Chemical compound O=C1OC(=O)[C@@H]2[C@H]1[C@]1([H])C=C[C@@]2([H])C1 KNDQHSIWLOJIGP-UMRXKNAASA-N 0.000 claims description 4
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920003986 novolac Polymers 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- -1 polydimethylsiloxane Polymers 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
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- 238000004321 preservation Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 4
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Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/06—Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a stator assembly, a compressor containing the stator assembly and air conditioning equipment, wherein the stator assembly comprises a stator core, a stator winding and an insulation structure, a through hole is formed in the center of the stator core, and a plurality of stator slots are formed in the inner wall of the stator core; the stator winding is wound on the stator core through the stator slot and is positioned in the stator slot; the insulation structure is positioned between the stator iron core and the stator winding and/or between the stator windings with different phases; the stator comprises a stator core and a stator slot, and is characterized by further comprising a heat conductor, wherein the heat conductor is selectively filled and arranged in a gap formed by the stator slot internal insulation structure, the stator winding and the stator core. The heat conductor cools the stator winding, and heat generated by the stator winding when the motor structure normally operates is timely derived, so that the heat dissipation efficiency of the stator winding is improved, the motor structure is ensured to operate safely, efficiently and stably, and the service life of the motor is prolonged. The filling method of the heat conductor provided by the invention has the advantages of simple process, wide raw material source and capability of effectively saving the cost.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a stator assembly, a compressor, air conditioning equipment and a filling method of a heat conductor.
Background
As is well known, a compressor is an important component of an electric appliance such as an air conditioner and a refrigerator using a refrigeration cycle system. The moving piston of the compressor is driven by the motor structure to convert mechanical energy into pressure energy, so that the compression of a refrigerant in a cylinder of the compressor is realized. The motor structure converts electric energy into rotary mechanical energy through rotation of the corresponding parts under the action of the current magnetic field, and provides power for operation of the compressor. Specifically, the compressor mainly includes the shell, set up the motor structure that is located the upper portion and is located the compression structure of lower part of shell cavity and the bent axle of connecting motor structure and compression structure, wherein, the motor structure mainly comprises stator module and the motor rotor that is located stator module center and rotatable fixed in the shell, and the bent axle can rotate with motor rotor together to can transmit the revolving force that motor structure produced to compression structure.
In the normal operation process of the motor structure of the compressor, a part of energy loss is expressed in the form of heat, so that the temperature of components is increased, and a heating source is formed. Regarding the stator assembly, the heat generating sources mainly comprise the stator winding and the stator core, and the inventor researches and discovers that due to the resistance, heat loss is generated when current flows through the stator winding, and the stator winding is often the highest temperature rising component. In the prior art, a heating source of one motor structure is directly exposed in refrigerant and refrigerating machine oil; another is exposure to refrigerants and refrigerator oils after treatment with a low coefficient of thermal conductivity lacquer. However, the heat conductivity coefficients of the refrigerant and the refrigerating machine oil for the compressor are low, and heat generated by a heating source is difficult to take away through the refrigerant and the refrigerating machine oil in time and is difficult to conduct to a region with low temperature in time, so that the two modes are not favorable for heat dissipation of the motor, the insulating paint of the stator is aged due to overhigh temperature rise, the insulating property of the insulating material is reduced, even turn-to-turn short circuit of a stator winding is caused, and the efficiency and the reliability of the motor are influenced.
Therefore, how to reduce the temperature rise of the stator winding of the compressor motor is becoming one of the technical problems to be solved by those skilled in the art.
It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a stator assembly, a compressor, air conditioning equipment and a heat conductor filling method, which relate to the technical field of compressors.
In order to achieve the purpose, the invention is realized by the following technical scheme: a stator assembly comprises a stator core, a stator winding and an insulation structure, wherein a through hole is formed in the center of the stator core, and a plurality of stator slots are formed in the inner wall of the stator core; the stator winding is wound on the stator core through the stator slot and is positioned in the stator slot; the insulation structure is positioned between the stator iron core and the stator winding and/or between the stator windings with different phases;
the stator core is arranged in the stator slot, and the insulation structure is arranged in the stator slot and is provided with a plurality of stator windings.
Optionally, the heat conductor comprises a first heat conductor, and the first heat conductor wraps the enameled wires of the stator winding and is located in a gap between the enameled wires of the stator and/or a gap between the stator winding and the insulating structure.
Optionally, the heat conductor further includes a second heat conductor, and the second heat conductor is filled in a gap between the insulating structure and the stator core and is in close contact with the stator core and/or the insulating structure.
Optionally, the thermal conductivity of the heat conductor is greater than or equal to 0.3W/m.K.
To achieve another object of the present invention, there is also provided a compressor including a stator assembly as set forth in any one of the above.
In order to achieve still another object of the present invention, the present invention also provides an air conditioning apparatus including the above-described compressor.
The invention also provides a filling method of the heat conductor, which is used for selectively filling the heat conductor in the stator slot of the stator assembly and comprises the following steps:
s100: the stator component is horizontally and statically placed along the axial direction of the stator component
Or
Placing the stator assembly along the axial direction of the stator assembly, forming an angle alpha with the horizontal plane, and rotating the stator assembly around the axis of the stator assembly at a rotating speed n, wherein alpha is more than 25 degrees and less than 35 degrees, and n is more than 15rpm and less than 35 rpm;
s200: filling a heat conductor into the stator slot and a gap formed by the stator winding and/or the insulating structure under the condition of a fluid state of the heat conductor, wherein the heat conductor is obtained by mixing a resin material and a curing agent;
s300: and under the heat conductor curing condition, curing the heat conductor to enable the heat conductor to wrap the enameled wire of the stator winding and fill a gap between the stator winding and the insulating structure and/or a gap between the insulating structure and the stator iron core, wherein the heat conductor curing condition comprises a preset temperature and a preset time.
Optionally, the resin material is comprised of ingredients comprising an epoxy novolac resin and an epoxy resin, and the curing agent is comprised of ingredients comprising tetrahydrophthalic anhydride and nadic anhydride;
in the step S200, the thermal conductor fluid state condition is that the thermal insulation is not more than 3 hours at the temperature of 20-60 ℃;
in the step S300, the heat conductor is cured under the condition that the heat conductor is kept at 110-150 ℃ for at least 80 minutes.
Optionally, the resin material and the curing agent are both comprised of polydimethylsiloxane-containing ingredients;
in step S200, the thermal conductor is in a fluid state and is kept at the temperature of 20-25 ℃ for no more than 1 hour;
in the step S300, the curing condition of the heat conductor is that the heat preservation time is at least a first time at the temperature of 25-40 ℃ or at least a second time at the temperature of 80-150 ℃.
Optionally, after step S300, cleaning the heat conductor attached to the outer diameter side and the inner diameter side of the stator core and the two ends of the stator core is further included.
Compared with the prior art, the stator assembly provided by the invention has the following beneficial effects:
the heat conductor of the stator component provided by the invention is selectively filled in the gap formed by the insulation structure, the stator winding and the stator core in the stator slot to form a high-efficiency heat conduction channel between the stator winding and the stator core, and the stator winding of the main heating component is cooled by the heat conductor, so that heat generated by the stator winding when the motor structure normally operates is timely led out, the heat dissipation efficiency of the stator winding is improved, the temperature rise of the motor structure is effectively reduced, the safe, high-efficiency and stable operation of the motor structure is ensured, and the service life of the motor is prolonged. Moreover, the invention has simple structure, does not need to change the existing structure of the stator component and has low cost.
Furthermore, the first heat conductor is located in a gap between the stator enameled wires and/or a gap between the stator winding and the insulating structure, and the second heat conductor is filled in the gap between the insulating structure and the stator core and is in close contact with the stator core and/or the insulating structure, so that the stator winding is fixed, when the motor structure is impacted or vibrated, relative motion between the stator winding and the stator core cannot be generated, and the stability of the motor structure is improved; the winding of the stator is completely sealed in the heat conductor, so that the stator winding is prevented from being contacted by conductive substances or gases such as refrigeration oil, refrigerant and the like, and the insulating and waterproof effects are achieved.
The compressor provided by the invention comprises the stator component, and the air conditioning equipment provided by the invention comprises the compressor with the stator component, so that the motor stator has the beneficial effects, and the compressor and the air conditioning equipment also have similar beneficial effects.
Furthermore, compared with the prior art, the filling method of the heat conductor provided by the invention has the following beneficial effects:
the filling method adopts a drip irrigation filling process in a heat conductor fluid state, so that the heat conductor can cover the stator winding and a gap between the stator winding and the stator core, and the process is simple and easy to operate; moreover, the heat conductor is composed of a resin material and a curing agent, so that the heat conductor is good in insulating property and heat conducting property, wide in raw material source and capable of effectively saving cost.
Still further, after the heat conductor is solidified, the heat conductor attached to the outer diameter side and the inner diameter side of the stator core and the two ends of the stator core are cleaned, so that the heat conductor filling method provided by the invention does not cause obvious surface defects to a stator assembly and does not cause any adverse effect on the assembly of the stator assembly.
Drawings
FIG. 1 is a schematic top view of a stator assembly of the prior art;
FIG. 2A is a schematic radial cross-section of FIG. 1;
FIG. 2B is a partial enlarged structural view of a position of one of the stator slots of FIG. 2;
fig. 3 is a schematic structural diagram of a stator assembly according to a first embodiment of the present invention;
FIG. 4 is a partial enlarged structural view of the stator slot of FIG. 3;
fig. 5 is a schematic flow chart illustrating a method for filling a thermal conductor according to a second embodiment of the present invention;
wherein the reference numerals are as follows:
100-stator winding, 110-enameled wire, 200-stator core, 300-insulation structure, 410, 420, 430-gap, 500-heat conductor, 510-first heat conductor, 520-second heat conductor.
Detailed Description
The core idea of the invention is to provide a stator component, a compressor, air conditioning equipment and a filling method of a heat conductor, wherein the core idea is to adopt a high heat conduction material with the heat conduction coefficient more than or equal to 0.3W/m.K, and the material is used after being prepared and mixed by one component or a plurality of components, is in a fluid state and can be solidified under certain conditions. The heat-generating material is filled in the air gap between the heat-generating source and the adjacent component in a fluid state, and is solidified into a heat conductor after the filling is finished. The filled heat conductor can improve the heat conduction capability, thereby reducing the temperature rise of the stator winding of the motor.
To make the objects, advantages and features of the present invention more apparent, a stator assembly, a compressor, an air conditioner and a method for filling a heat conductor according to the present invention will be described in further detail with reference to the accompanying drawings. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. It should be understood that the drawings are not necessarily to scale, showing the particular construction of the invention, and that illustrative features in the drawings, which are used to illustrate certain principles of the invention, may also be somewhat simplified. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and use environment. In the embodiments described below, the same reference numerals are used in common between different drawings to denote the same portions or portions having the same functions, and a repetitive description thereof will be omitted. In this specification, like reference numerals and letters are used to designate like items, and therefore, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.
These terms, as used herein, are interchangeable where appropriate. Similarly, if the method described herein comprises a series of steps, the order in which these steps are presented herein is not necessarily the only order in which these steps may be performed, and some of the described steps may be omitted and/or some other steps not described herein may be added to the method.
< example one >
Referring to fig. 1, 2A, 2B, 3 and 4, the present embodiment provides a stator assembly including a stator core 200, a stator winding 100 and an insulation structure 300, wherein the stator core 200 has a through hole at the center thereof, and a plurality of stator slots (not shown) are formed in the inner wall of the stator core 200; the stator winding 100 is wound on the stator core 200 through the stator slot and is located in the stator slot; the insulation structure 300 is located between the stator core 200 and the stator winding 100 and between the stator windings 100 of different phases; the stator structure further comprises a heat conductor 500, wherein the heat conductor 500 is selectively filled in the gap formed by the insulation structure 300, the stator winding 100 and the stator core 200 in the stator slot, and preferably, the heat conductor 500 is in close contact with the stator winding 100 and/or the stator core 200. The heat conductor 500 does stator winding 100 with efficient heat conduction passageway has been erect between stator core 200, through heat conductor 500 cools off main heating element stator winding 100, in time derives the heat that stator winding 100 produced when motor structure normally operates, has improved stator winding 100's radiating efficiency, has effectively reduced motor structure's temperature rise, guarantees motor structure safety, high efficiency, steady operation to the working life of motor has been promoted. Moreover, the invention has simple structure, does not need to change the existing structure of the stator component and has low cost.
Preferably, the thermal conductor 500 comprises a first thermal conductor 510, the first thermal conductor 510 wrapping the enameled wires 110 of the stator winding 100 in the gap 430 between the enameled wires 110 and/or in the gap 420 between the stator winding 100 and the insulating structure 300.
Preferably, the heat conductor further includes a second heat conductor 520, and the second heat conductor 520 is filled in the gap 410 between the insulating structure 300 and the stator core 200 and is in close contact with the stator core 200 and/or the insulating structure 300.
Because the first heat conductor 510 is located in the gap 430 of the enameled wire 110 and/or the gap 420 between the stator winding 100 and the insulating structure 300, and the second heat conductor 520 is disposed in the gap 410 between the insulating structure 300 and the stator core 200 and is in close contact with the stator core 200 and/or the insulating structure 300, the stator winding 100 is fixed, when the motor structure is impacted or vibrated, the stator winding 100 and the stator core do not move relatively, and the stability of the motor structure is improved.
Preferably, the heat conductor is arranged between the stator winding and the stator core through a filling process, and the heat conductor is composed of at least two components, namely a component A and a component B, wherein the component A is a resin material, and the component B is a curing agent, in one embodiment, the two components are in a stable fluid state during storage, are mixed according to a mass ratio of 1:1, are dripped into a gap between the stator winding and the stator core through the filling process in the fluid state, and are cured under a certain temperature condition, and an enameled wire wrapping the stator winding, the gap between the stator winding and the insulating structure and/or the gap between the insulating structure and the stator core are wrapped in the enameled wire wrapping the stator winding.
Preferably, in one embodiment, the resin material comprises an epoxy novolac resin and an epoxy resin component, and the curing agent comprises tetrahydrophthalic anhydride and nadic anhydride.
Preferably, in yet another embodiment, the resin material and the curing agent both comprise polydimethylsiloxane.
Obviously, the present invention is not limited to specific materials of the heat conductor, and the heat conducting material includes, but is not limited to, high heat conducting fillable materials with high heat conductivity coefficient and excellent heat dissipation performance, such as heat conducting silicone sheets, heat conducting silicone grease, heat conducting silicone adhesive tape, heat conducting graphite sheets, etc.
Preferably, the heat conductivity coefficient of the heat conductor is more than or equal to 0.3W/m.K.
In yet another exemplary embodiment of the present invention, a compressor is provided that includes a stator assembly as described in the above embodiments.
In still another exemplary embodiment of the present invention, there is provided an air conditioning apparatus including the compressor according to the above embodiment.
The stator assembly provided by the invention can effectively reduce the temperature rise of the stator winding of the motor of the compressor. In one exemplary permanent magnet synchronous motor, the data before and after using the stator assembly provided by the invention are as follows: when the output power is 8KW, the highest temperature of the stator winding is reduced to 150 ℃ from 180 ℃; when the output power is 2.5KW, the highest temperature of the stator winding is reduced to 65 ℃ from 79 ℃, and the temperature reduction amplitude is nearly 20%, so that the stator assembly provided by the invention has a remarkable effect of reducing the temperature rise of the stator winding of the motor.
The compressor provided by the invention comprises the stator component, and the air conditioning equipment provided by the invention comprises the compressor with the stator component, so that the motor stator has the beneficial effects, and the compressor and the air conditioning equipment also have similar beneficial effects.
< example two >
The embodiment provides a method for filling a heat conductor, which is used for selectively filling the heat conductor in a stator slot of a stator assembly, as shown in fig. 5, and comprises the following steps:
s100: the stator component is horizontally placed statically along the axial direction of the stator component or is placed at an angle alpha to the horizontal plane along the axial direction of the stator component, and rotates around the axis of the stator component at a rotating speed n, wherein alpha is more than 25 degrees and less than 35 degrees, and n is more than 15rpm and less than 35 rpm.
S200: and selectively filling the heat conductor into the stator slot, the gap formed by the stator winding and/or the insulating structure under the condition that the heat conductor is in a fluid state, wherein the heat conductor is obtained by mixing a resin material and a curing agent.
S300: and under the heat conductor curing condition, curing the heat conductor to enable the heat conductor to wrap the enameled wire of the stator winding and fill a gap between the stator winding and the insulating structure and/or a gap between the insulating structure and the stator iron core, wherein the heat conductor curing condition comprises a preset temperature and a preset time.
Preferably, in step S200, the drip irrigation device may be used to perform a drip irrigation operation on the thermal conductor in a fluid state to achieve selective filling. The heat conductor is obtained by mixing a resin material and a curing agent according to the mass ratio of 1:1, wherein the resin material comprises epoxy novolac resin and epoxy resin, and the curing agent comprises tetrahydrophthalic anhydride and nadic anhydride; in the step S200, the fluid state condition of the heat conductor is that the heat conductor is kept for no more than 3 hours at the temperature of 20-60 ℃; in the step S300, the heat conductor is cured under the condition that the heat conductor is kept at 110-150 ℃ for at least 80 minutes.
Preferably, the resin material and the curing agent are both composed of a polydimethylsiloxane-containing component; in step S200, the thermal conductor is in a fluid state and is kept at the temperature of 20-25 ℃ for no more than 1 hour; in the step S300, the curing condition of the heat conductor is that the heat preservation time is at least a first time at the temperature of 25-40 ℃ or at least a second time at the temperature of 80-150 ℃. It is understood that the curing conditions of the thermal conductor are temperature dependent, and the higher the temperature, the shorter the curing time, for example, the thermal conductor can be cured in about 24 hours (i.e., the first time period) when the room temperature reaches 25 ℃ under natural conditions without using an oven; in the case of an oven, the second period is about 2 hours to cure when held at 80 ℃. The second time period is about 30 minutes to cure at 150 ℃.
Therefore, the stator assembly is statically placed or inclined at a certain angle along the axial direction of the stator assembly and rotates along the axial direction of the stator assembly, so that the heat conductor in the fluid state can naturally flow to realize uniform filling; the filling method adopts a drip irrigation filling process in a heat conductor fluid state, so that the heat conductor can cover the stator winding and the gap between the stator winding and the stator core, and the process is simple and easy to operate. Moreover, the heat conductor is composed of a resin material and a curing agent, so that the heat conductor is good in insulating property and heat conducting property, wide in raw material source and capable of effectively saving cost.
Preferably, after step S300, cleaning the outer diameter side and the inner diameter side of the stator core and the heat conductors attached to the two ends of the stator core is further included. Therefore, the invention provides a heat conductor filling method which does not bring obvious surface defects to a stator assembly and does not bring any adverse effect to the assembly of the stator assembly.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In summary, the above embodiments have been described in detail on different configurations of the stator assembly, the compressor, the air conditioning equipment and the method for filling the heat conductor, and it is to be understood that the above description is only for the description of the preferred embodiment of the present invention and does not limit the scope of the present invention in any way.
Claims (10)
1. A stator assembly comprises a stator core, a stator winding and an insulation structure, wherein a through hole is formed in the center of the stator core, and a plurality of stator slots are formed in the inner wall of the stator core; the stator winding is wound on the stator core through the stator slot and is positioned in the stator slot; the insulation structure is positioned between the stator core and the stator winding and/or the stator windings with different phases;
the stator is characterized by further comprising a heat conductor, wherein the heat conductor is selectively filled in gaps formed by the insulation structures, the stator windings and the stator iron core in the stator slots.
2. The stator assembly of claim 1, wherein the thermal conductor comprises a first thermal conductor wrapped around the enameled wires of the stator windings in a gap between the enameled wires of the stator and/or in a gap between the stator windings and the insulation structure.
3. The stator assembly of claim 1, wherein the thermal conductor further comprises a second thermal conductor filled in a gap disposed between the insulation structure and the stator core and in intimate contact with the stator core and/or the insulation structure.
4. The stator assembly of claim 1, wherein the thermal conductivity of the thermal conductor is greater than or equal to 0.3W/m.k.
5. A compressor, comprising a stator assembly as claimed in claims 1-4.
6. An air conditioning apparatus, characterized by comprising a compressor according to claim 5.
7. A method for filling a heat conductor in a stator slot of a stator assembly, comprising the steps of:
s100: the stator component is horizontally and statically placed along the axial direction of the stator component
Or
Placing the stator assembly along the axial direction of the stator assembly, forming an angle alpha with the horizontal plane, and rotating the stator assembly around the axis of the stator assembly at a rotating speed n, wherein alpha is more than 25 degrees and less than 35 degrees, and n is more than 15rpm and less than 35 rpm;
s200: selectively filling a heat conductor into the stator slot, a gap formed by a stator winding and/or the insulating structure under the condition of a fluid state of the heat conductor, wherein the heat conductor is obtained by mixing a resin material and a curing agent;
s300: and under the heat conductor curing condition, curing the heat conductor to enable the heat conductor to wrap the enameled wire of the stator winding and fill a gap between the stator winding and the insulating structure and/or a gap between the insulating structure and the stator iron core, wherein the heat conductor curing condition comprises a preset temperature and a preset time.
8. A method for filling a heat conductor according to claim 7, wherein the resin material is composed of a component containing an epoxy novolac resin and an epoxy resin, and the curing agent is composed of a component containing tetrahydrophthalic anhydride and nadic anhydride;
in the step S200, the thermal conductor fluid state condition is that the thermal insulation is not more than 3 hours at the temperature of 20-60 ℃;
in the step S300, the heat conductor is cured under the condition that the heat conductor is kept at 110-150 ℃ for at least 80 minutes.
9. A method for filling a heat conductor according to claim 7, wherein said resin material and said curing agent are each composed of a polydimethylsiloxane-containing component;
in the step S200, the thermal conductor fluid state condition is that the thermal insulation is not more than 1 hour under the condition of 20-25 ℃;
in the step S300, the curing condition of the heat conductor is that the heat preservation time is at least a first time at the temperature of 25-40 ℃ or at least a second time at the temperature of 80-150 ℃.
10. The method as claimed in claim 7, further comprising cleaning the stator core outside diameter side, the stator core inside diameter side and the heat conductor attached to the two ends of the stator core after step S300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286971.2A CN113541345A (en) | 2020-04-13 | 2020-04-13 | Stator assembly, compressor, air conditioning equipment and filling method of heat conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286971.2A CN113541345A (en) | 2020-04-13 | 2020-04-13 | Stator assembly, compressor, air conditioning equipment and filling method of heat conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113541345A true CN113541345A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010286971.2A Pending CN113541345A (en) | 2020-04-13 | 2020-04-13 | Stator assembly, compressor, air conditioning equipment and filling method of heat conductor |
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| CN (1) | CN113541345A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958673A (en) * | 2016-06-03 | 2016-09-21 | 天津市松正电动汽车技术股份有限公司 | Double-winding motor stator structure and manufacturing process thereof |
| CN109880297A (en) * | 2019-03-06 | 2019-06-14 | 吉林大学 | A kind of heat conductive insulating epoxy resin composite material and preparation method thereof |
| CN210041457U (en) * | 2019-08-02 | 2020-02-07 | 南昌海立电器有限公司 | Stator assembly and compressor |
| CN212183200U (en) * | 2020-04-13 | 2020-12-18 | 南昌海立电器有限公司 | Stator module, compressor and air conditioning equipment |
-
2020
- 2020-04-13 CN CN202010286971.2A patent/CN113541345A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958673A (en) * | 2016-06-03 | 2016-09-21 | 天津市松正电动汽车技术股份有限公司 | Double-winding motor stator structure and manufacturing process thereof |
| CN109880297A (en) * | 2019-03-06 | 2019-06-14 | 吉林大学 | A kind of heat conductive insulating epoxy resin composite material and preparation method thereof |
| CN210041457U (en) * | 2019-08-02 | 2020-02-07 | 南昌海立电器有限公司 | Stator assembly and compressor |
| CN212183200U (en) * | 2020-04-13 | 2020-12-18 | 南昌海立电器有限公司 | Stator module, compressor and air conditioning equipment |
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