CN212183200U - Stator module, compressor and air conditioning equipment - Google Patents

Abstract

The utility model provides a stator assembly and a compressor and air conditioning equipment containing the same, wherein the stator assembly comprises a stator core, a stator winding and an insulation structure, a through hole is arranged at the center of the stator core, and a plurality of stator slots are arranged on 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.

Description

Stator module, compressor and air conditioning equipment

Technical Field

The utility model relates to a compressor technical field especially relates to a stator module, compressor and air conditioning equipment.

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 its stator module, its source of generating heat mainly has stator winding and stator core, and utility model people found through research that because of resistance, can produce the heat loss when the electric current flows through stator winding, stator winding often is the highest part of temperature rise. 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 to be 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 constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome exist among the prior art not enough, provide the utility model relates to a compressor technical field especially relates to a stator module, compressor and air conditioning equipment.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: 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 heat conductor is arranged between the stator winding and the stator core through a filling process, and the heat conductor is made of a resin material and a curing agent according to a mass ratio of 1: 1.

Optionally, the resin material comprises an epoxy novolac resin and an epoxy resin component, and the curing agent comprises tetrahydrophthalic anhydride and nadic anhydride.

Optionally, the resin material and the curing agent both comprise polydimethylsiloxane.

Optionally, the thermal conductivity of the heat conductor is greater than or equal to 0.3W/m.K.

In order to realize the utility model discloses another purpose, the utility model discloses still provide a compressor, including an aforesaid arbitrary stator module.

In order to realize the utility model discloses a further purpose, the utility model also provides an air conditioning equipment, air conditioning equipment includes foretell compressor.

Compared with the prior art, the utility model provides a pair of stator module has following beneficial effect:

the utility model provides a stator module's heat conductor selectivity is filled and is set up in the stator slot insulation construction stator winding with in the space that stator core formed, do stator winding with efficient heat conduction passageway has been set up between the stator core, through the heat conductor cools off the main part stator winding that generates heat, and the heat that stator winding produced when in time deriving motor structure normal operating has improved stator winding'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 utility model discloses simple structure need not to change stator module's current structure, 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 utility model provides a compressor includes stator module, the utility model provides an air conditioning equipment is including having stator module's compressor, consequently, because motor stator has foretell beneficial effect, compressor and air conditioning equipment also have similar beneficial effect, compare with prior art, not only the radiating efficiency is high, moves more stably, safety, high-efficient moreover.

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 the stator slot of FIG. 1;

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;

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 utility model is to provide a stator module, compressor and air conditioning equipment, its core idea is to adopt a coefficient of thermal conductivity to be greater than or equal to 0.3W/m.K's high heat conduction material, and this material is used by a component or by the mixed back of multiple component allotment, for fluid state and can solidify under certain condition. 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 clearer, the stator module, the compressor and the air conditioner provided by the present invention will be described in further detail with reference to the accompanying drawings. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of 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 the illustrative features in the drawings, which are used to illustrate certain principles of the invention, are also 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 environment of use. 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.

< 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 utility model discloses simple structure need not to change stator module's current structure, 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 utility model discloses do not restrict the concrete material of heat conductor, the heat conduction material includes but not limited to high heat conduction fillable materials that coefficient of heat conductivity such as heat conduction silica gel piece, heat conduction silicone grease, heat conduction silicon rubberized fabric, heat conduction sticky tape, heat conduction graphite flake are high, heat dispersion is excellent.

Preferably, the heat conductivity coefficient of the heat conductor is more than or equal to 0.3W/m.K.

In another exemplary embodiment of the present invention, a compressor is provided, which includes a stator assembly as described in the previous embodiments.

In another exemplary embodiment of the present invention, an air conditioner is provided, which includes the compressor of the above embodiments.

The utility model provides a pair of stator module can effectively reduce compressor motor stator winding's temperature rise. At an exemplary permanent magnet synchronous machine of one of them, use the utility model provides a data around the stator module as follows: when the output power is 8KW, the highest temperature of the stator winding is reduced to 150 ℃ from 180 ℃; when output is 2.5KW, stator winding is the highest temperature by 79 ℃ reduce to 65 ℃, the cooling range is nearly 20%, from this it can be seen, the utility model provides a stator module reduces the effect of motor stator winding temperature rise and is showing.

The utility model provides a compressor includes stator module, the utility model provides an air conditioning equipment is including having stator module's compressor, consequently, because motor stator has foretell beneficial effect, compressor and air conditioning equipment also have similar beneficial effect, compare with prior art, not only the radiating efficiency is high, moves more stably, safety, high-efficient moreover.

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 and the air conditioning equipment, and certainly, the above description is only for the description of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, the present invention includes but is not limited to the configurations listed in the above embodiments, and those skilled in the art can take the above embodiments to put it in a contrary way, and any changes and modifications made by those skilled in the art according to the above disclosure all belong to the protection scope of the claims.

Claims (5)

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 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.

3. The stator assembly of claim 1, wherein the thermal conductivity of the thermal conductor is greater than or equal to 0.3W/m.k.

4. A compressor, comprising a stator assembly according to any one of claims 1-3.

5. An air conditioning apparatus, characterized by comprising the compressor of claim 4.

Images