Compressor and air conditioner having the same

Abstract

The application provides a compressor and an air conditioner with the same. The compressor comprises a stator core, a plurality of stator teeth are arranged on the inner circle of the stator core, a stator slot is formed between adjacent stator teeth, a plurality of stator core grooves are arranged on the outer circumferential surface of the stator core, a stator winding is arranged in each stator slot, the stator winding is formed by a plurality of coils, a reinforcing member is arranged between adjacent two coils, in the stator slot and at least one of the stator core grooves, and an insulating part is arranged on each stator tooth. By arranging the reinforcing member in the stator core groove, the rigidity of the stator core can be effectively increased, the vibration noise of the motor is reduced, the voltage insulation of the motor stator can be improved, and the overall noise of the compressor is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioner equipment, in particular to a compressor and an air conditioner with the same. BACKGROUND

[0002] The noise problem of an air conditioner is one of the most direct performance experiences, the compressor noise of an outdoor unit of the air conditioner and the shell vibration noise caused by the vibration thereof are main sources of outdoor noise, and the electromagnetic vibration and noise problem of a motor of the compressor has become a main concern in the refrigeration and air conditioning industry. In addition to directly affecting the performance experience of the air conditioner, the vibration and noise of the compressor will also affect the overall performance of the air conditioner, such as service life and operation reliability.

[0003] The existing compressor commonly uses the following noise reduction means: increasing the thickness of the shell, but increasing the thickness of the shell will affect the outer diameter of the stator of the motor or increase the volume of the air conditioning system. Optimizing the magnetic circuit of the motor reduces the electromagnetic force of the motor, but affects the efficiency of the motor. There is also an optimization of the electromagnetic force of the motor through pole-slot matching, but the noise reduction effect is not very significant, and generally has a negative impact on the performance of the motor, thereby affecting the energy efficiency of the compressor.

[0004] As a core component of the compressor, the efficiency and noise problem of the motor directly affect the overall performance of the compressor, and the efficiency and noise problem of the motor are mutually restrictive. In order to meet the energy saving requirement, the higher the efficiency of the motor is, the better, and in order to improve the user experience, the lower the noise of the motor is, the better. However, increasing the efficiency of the motor requires a larger slot area, which will make the stator tooth width of the motor narrower and the stator yoke thickness thinner, thereby reducing the stiffness of the stator, causing the motor to vibrate and produce noise, and the compressor to vibrate and produce noise. If the stiffness of the motor is increased in order to reduce the noise of the motor, the stator tooth yoke width needs to be increased, but the efficiency of the motor is reduced. Therefore, a high-efficiency and low-noise motor has become a research target in the industry.

[0005] In the prior art, the stator tooth yoke is set to be constant, and only the winding of the winding is changed to improve the insulation characteristics. Such a setting cannot improve the efficiency and noise of the compressor. In the prior art, the motor housing is injected with insulating material, and a special motor housing protection method is adopted to improve the insulation characteristics. Such a setting cannot improve the efficiency and noise of the compressor. SUMMARY

[0006] The main purpose of the present application is to provide a compressor and an air conditioner with the same, so as to solve the problems of large vibration and noise of the compressor and low energy efficiency of the compressor in the prior art.

[0007] In order to achieve the above object, according to one aspect of the present application, there is provided a compressor, comprising: a stator core, a plurality of stator teeth are arranged on an inner circle of the stator core, a stator slot is formed between adjacent stator teeth, a plurality of stator core grooves are arranged on an outer circumferential surface of the stator core, a stator winding is arranged in each stator slot, the stator winding is formed by a plurality of coils, a reinforcing member is arranged between adjacent two coils, in at least one of the stator slot and the stator core groove, and an insulation part is arranged on each stator tooth.

[0008] Further, the stator winding is arranged in each stator slot, a total cross-sectional area of the reinforcing member is A, a total cross-sectional area of the stator slot is B, a cross-sectional area of a stator yoke of the stator core is C, a total cross-sectional area of the stator core groove is D, a total cross-sectional area of the insulation part is E, and a total cross-sectional area of a conductor in the stator winding is F, wherein 0.01×(C+D)≤A≤10×(B-E-F).

[0009] Further, the compressor comprises a shell and a pump body assembly, the pump body assembly and the stator core are arranged in the shell, the shell has an upper cover and a lower cover, an upper end of the stator winding is an upper end facing the upper cover, a lower end of the stator winding is a lower end facing the lower cover, a height between the upper end of the stator winding and the lower end of the stator winding is K, a length of the reinforcing member in an axial direction of the stator core is H, and a distance between the lower end of the stator winding and an upper flange of the pump body assembly is I, wherein 0<H<K+I.

[0010] Further, an inner edge of the reinforcing member forms a circle, and an inner diameter of the circle is greater than an outer diameter of a rotor arranged in the stator core.

[0011] Further, the reinforcing member is made of at least one of an alkyd resin, a polyurethane, an epoxy resin, a phenolic resin, a polyimide resin, a polyacrylate, a silicone resin or an aromatic heterocyclic polymer.

[0012] Further, the stator winding is a distributed winding or a concentrated winding.

[0013] Further, the reinforcing member is arranged in abutment with the stator yoke of the stator core and the stator winding.

[0014] Further, the reinforcing member is arranged in abutment with the stator yoke of the stator core and the stator winding through the insulation part.

[0015] Further, the insulation part comprises a slot insulation paper and an insulation framework, and a total cross-sectional area of the insulation part comprises a total cross-sectional area of the slot insulation paper and a total cross-sectional area of the insulation framework.

[0016] According to another aspect of the present application, there is provided an air conditioner, comprising the compressor.

[0017] The technical scheme of the present application can effectively increase the rigidity of the stator core, reduce the vibration noise of the motor, improve the voltage insulation of the motor stator, and effectively reduce the overall noise of the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein in conjunction with the description of the application. The drawings are as follows:

[0019] Figure 1 A structure schematic view of a first embodiment of a stator core according to the present application is shown;

[0020] Figure 2 A structure schematic view of a second embodiment of a stator core according to the present application is shown;

[0021] Figure 3 A structure schematic view of a third embodiment of a stator core according to the present application is shown;

[0022] Figure 4 A structure schematic view of a fourth embodiment of a stator core according to the present application is shown;

[0023] Figure 5 A structure schematic view of a fifth embodiment of a stator core according to the present application is shown;

[0024] Figure 6 A structure schematic view of a first embodiment of a compressor according to the present application is shown;

[0025] Figure 7 A structure schematic view of a second embodiment of a compressor according to the present application is shown;

[0026] Figure 8 A structure schematic view of a sixth embodiment of a stator core according to the present application is shown;

[0027] Figure 9 A structure schematic view of a seventh embodiment of a stator core according to the present application is shown;

[0028] Figure 10 A structure schematic view of an eighth embodiment of a stator core according to the present application is shown;

[0029] Figure 11 A structure schematic view of a ninth embodiment of a stator core according to the present application is shown;

[0030] Figure 12 A comparison chart of the motor of the present application and an existing motor efficiency is shown;

[0031] Figure 13 A comparison chart of the motor of the present application and the existing compressor efficiency is shown;

[0032] Figure 14 A comparison chart of the compressor of the present application and the existing compressor frequency spectrum 1KHz noise is shown;

[0033] Figure 15 A structural schematic diagram of an embodiment of the compressor according to the present application is shown.

[0034] Among the above drawings, the following reference signs are included:

[0035] 10, stator core; 11, stator tooth; 12, stator slot; 13, stator core recess; 14, stator yoke;

[0036] 20, reinforcing member;

[0037] 30, insulation part; 31, slot insulation paper; 32, insulation skeleton;

[0038] 40, stator winding;

[0039] 50, housing; 51, upper cover; 52, lower cover;

[0040] 60, pump body assembly. DETAILED DESCRIPTION

[0041] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0043] It is to be understood that the terms "first", "second", and the like, used in the description and the claims of the present application are used to differentiate between similar objects, and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that such terms, when used in the context of the present application, can be interchanged, as appropriate, to describe the embodiments of the present application described herein, for example, can be practiced in other than the illustrated order, if not so illustrated and described, without departing from the scope of the present application. Furthermore, the terms "comprising" and "including" and any of their derivatives, are intended to be construed as encompassing not only the listed items, but also others that are similar, equivalent, or substantially similar in function, operation, and effect to the listed items, to the items that are expressly recited in the claims, or to the items that can reasonably be inferred from the description and the drawings.

[0044] For the purposes of the description hereinafter, spatial relative terms, such as "above", "below", "top", "bottom", and the like, are used to describe the relative position of one element to another element as illustrated in the figures. It is to be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "below" other elements would then be oriented "below" or "above" the other elements. Accordingly, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0045] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept of the exemplary embodiments to those skilled in the art, and in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same reference numerals are used in different drawings to designate the same elements, and thus the description will not be repeated.

[0046] In conjunction with Figures 1 to 15 As shown, according to a specific embodiment of the present application, a compressor is provided.

[0047] In particular, as Figures 1 to 7As shown, the compressor comprises a stator core 10. A plurality of stator teeth 11 are arranged on the inner circle of the stator core 10. The stator slots 12 are formed between adjacent stator teeth 11. A plurality of stator core grooves 13 are arranged on the outer circumferential surface of the stator core 10. The stator winding 40 is arranged in each stator slot 12. The stator winding 40 is formed by a plurality of coils. The reinforcing member 20 is arranged between adjacent two coils, in at least one of the stator slot 12 and the stator core groove 13. The insulation part 30 is arranged on each stator tooth 11.

[0048] In the embodiment, by arranging the reinforcing member in the stator core groove, the rigidity of the stator core can be effectively increased, the vibration noise of the motor can be reduced, the pressure insulation of the motor stator can be improved, and the overall noise of the compressor can be effectively reduced.

[0049] In the embodiment, the reinforcing member 20 is arranged in the stator core groove 13. The total cross-sectional area of the reinforcing member 20 is A. The total cross-sectional area of the stator slot 12 is B. The cross-sectional area of the stator yoke 14 of the stator core 10 is C. The total cross-sectional area of the stator core groove 13 is D. The total cross-sectional area of the insulation part 30 is E. The total cross-sectional area of the conductor in the stator winding 40 is F. 0.01×(C+D)≤A≤10×(B-E-F). Since the slot fill rate of the compressor motor is less than 100%, there is always a gap between the windings in the stator slot or the turns of the coil, or there is a gap between the outer circle of the stator core and the shell. The reinforcing member is arranged in the gap. The reinforcing member is directly attached to the stator winding or the coil or the stator core and the compressor shell. The area occupied by all reinforcing members in the radial cross-section of the stator is A. The total cross-sectional area of all stator slots is B. The area occupied by the stator yoke in the radial cross-section of the stator is C. The area occupied by the stator core groove in the radial cross-section of the stator is D. The total slot insulation area is E. The area of the conductor in all stator slots is F. This arrangement makes the motor have the effects of high efficiency and low noise, reduces the thickness of the stator yoke, increases the slot area, reduces the motor loss, improves the motor efficiency, improves the energy efficiency of the compressor, maintains high efficiency while adding the reinforcing member attached to the yoke, improves the rigidity of the stator, reduces the vibration noise of the motor, reduces the overall noise of the compressor, and improves the pressure insulation of the motor stator. Preferably, 0.01×(C+D)≤A≤2×(B-E-F). This arrangement makes the yoke width smaller, can accommodate more stator windings, can improve the motor efficiency, and at the same time uses the reinforcing member to improve the rigidity of the motor, reduce the vibration noise of the motor, reduce the vibration noise of the compressor, and improve the pressure insulation of the motor stator. When A<0.01×(C+D), the amount of reinforcing member is small, which has a small effect on improving the rigidity of the motor and reducing the vibration noise of the motor. When A>10×(B-E-F), the reinforcing member occupies a large area, and the reduction of the number of turns of the stator winding will reduce the motor efficiency, and at the same time, the yoke is too narrow, the tooth width is small, and the output torque of the motor is reduced.

[0050] The compressor comprises a shell 50 and a pump body assembly 60, the pump body assembly 60 and the stator core 10 are arranged in the shell 50, the shell 50 has an upper cover 51 and a lower cover 52, one end of the stator winding 40 facing the upper cover 51 is an upper end, one end of the stator winding 40 facing the lower cover 52 is a lower end, the height between the upper end of the stator winding 40 and the lower end of the stator winding 40 is K, the length of the reinforcing member 20 in the axial direction of the stator core 10 is H, and the distance between the lower end of the stator winding 40 and the upper flange of the pump body assembly 60 is I, wherein 0 < H < K + I. The inner edge of the reinforcing member 20 forms a circular shape, and the inner diameter of the circular shape is greater than the outer diameter of the rotor arranged in the stator core 10. The reinforcing member 20 is made of at least one of alkyd resin, polyurethane, epoxy resin, phenolic resin, polyimide resin, polyacrylate, silicone resin or aromatic heterocyclic polymer. The stator core structure adopts the structure, after the compressor is operated, the reinforcing member is stable in physical and chemical properties, and the reinforcing member and the refrigerant in the compressor do not have physical and chemical reactions, the reinforcing member is not softened, not sticky, not brittle, not deformed, not decomposed, the heat transfer coefficient and the viscosity are not changed, and the compressor lubricating oil is not changed in acid-base value, has no precipitate and no flocculent.

[0051] In the embodiment, when the stator is a concentrated winding, the reinforcing member wraps the end of the stator winding, the reinforcing member fills the gap between the insulating framework and the end of the stator winding, improves the fastening of the stator winding, and the reinforcing member at the end further improves the rigidity of the motor, reduces the vibration noise of the motor, reduces the noise caused by the mechanical vibration of the compressor, improves the reliability of the compressor, the axial height of the reinforcing member does not exceed the end face of the insulating framework, and if the axial height exceeds the end face of the insulating framework, the use amount of the reinforcing member is too large, the material cost is increased, the overall cost is increased, and the performance-price ratio of the compressor is reduced. If the stator is a distributed winding, the reinforcing member wraps the ends of the stator winding, and the axial height of the reinforcing member does not exceed the height from the upper end of the winding to the end face of the upper flange. If the axial height exceeds the height from the upper end of the winding to the end face of the upper flange, the use amount of the reinforcing member is too large, the material cost is increased, the overall cost is increased, and even the height difference between the stator and the rotor is caused during installation, which further reduces the performance of the compressor and increases the noise of the compressor.

[0052] Preferably, the stator winding 40 is a distributed winding or a concentrated winding. The reinforcing member 20 is arranged in close contact with the stator yoke 14 and the stator winding 40 of the stator core 10. The reinforcing member 20 is arranged in close contact with the stator yoke 14 and the stator winding 40 of the stator core 10 through the insulating part 30. In the present application, the cross section of the stator core groove 13 can be an arc-shaped groove, wherein the cross section of the arc-shaped groove is greater than one-half of a circle, or, as shown in Figure 10 and Figure 11As shown, the stator core groove 13 is formed between the straight edge provided at the outer periphery of the stator core and the outer circular profile line of the stator core, i.e., the accommodation space formed between the straight edge and the inner wall of the shell 50 of the compressor.

[0053] Further, the insulation part 30 includes the slot insulation paper 31 and the insulation skeleton 32, and the total area of the cross section of the insulation part 30 includes the total area of the cross section of the slot insulation paper 31 and the total area of the cross section of the insulation skeleton 32. Such arrangement can effectively improve the compressor efficiency.

[0054] The compressor in the above embodiment can also be used in the technical field of compressor equipment, i.e., according to another aspect of the present application, an air conditioner is provided, which includes the compressor, and the compressor is the compressor in the above embodiment. Specifically, as the core component of the compressor, the efficiency and noise problem of the motor directly affect the overall performance of the compressor, and the efficiency and noise problem of the motor are mutually restrictive. In order to meet the energy saving requirement, the higher the motor efficiency is, the better, in order to improve the user experience, the lower the motor noise is, the better, but increasing the motor efficiency requires a larger slot area, which will make the stator tooth width of the motor narrower and the stator yoke thickness thinner, reduce the stator stiffness, cause the motor to vibrate and make noise, and the compressor to vibrate and make noise. If the motor stiffness is increased in order to reduce the motor noise, the stator tooth yoke width needs to be increased, but the motor efficiency is reduced, so the high-efficiency and low-noise motor has become the research target of the industry. The present application provides a compressor, which includes a motor, a pump body assembly, a shell assembly, and a distributor. The motor stator includes a stator core, a stator winding, and a reinforcing member. The reinforcing member is arranged in the stator core slot and the groove on the outer surface of the stator core, and the flow-through hole on the stator core. The reinforcing member is attached to or wrapped around the stator yoke, the stator winding, the stator coil, the stator core groove, and the shell, or the reinforcing member is attached to or wrapped around the stator yoke through the insulation member, or the stator winding and the stator coil. The reinforcing member can be completely wrapped around the stator slot and the winding at both ends, or only wrapped around part of the winding in the stator slot and at both ends, so as to improve the motor stiffness and reduce the compressor noise.

[0055] The reinforcing member is a component of rigid material, an injection molded part, a gel-like component, etc. with certain mass. The reinforcing member material is a single material or a mixed material that is not magnetically conductive, resistant to refrigerant corrosion, resistant to high temperature, has good insulation, and is chemically stable, such as one or more of alkyd resin, polyurethane, epoxy resin, phenolic resin, polyimide resin, polyacrylate, silicone resin, or aromatic heterocyclic polymer, etc. to further improve the reliability of the motor and compressor. The reinforcing member is in the stator slot, and if it is magnetically conductive, it will affect the magnetic circuit. The reinforcing component is resistant to refrigerant, and there is refrigerant flowing in the compressor. If it is not resistant to refrigerant, it will be corroded to produce impurities, reducing the reliability of the compressor. The reinforcing component is resistant to high temperature and has good insulation. The compressor runs at high speed, and the motor temperature rises. At the same time, the tooth winding is energized, which further improves the insulation of the motor stator. The inner edge of the reinforcing member is greater than the maximum rotor outer diameter. The reinforcing component is fixed on the stator at all times. When the motor is running, the rotor rotates at high speed. To prevent the problem of scanning the bore that affects the reliability of the motor and compressor, the inner edge of the reinforcing member should not exceed the inner diameter of the stator. Among them, as shown in Figures 12 to 14 The "new motor" and "new compressor" in the figure refer to a new structure of motor and compressor provided in the present application.

[0056] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. referred to in the specification means that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least one embodiment described in the general description of the application. The same expression appears in several places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the implementation of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present application.

[0057] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0058] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A compressor characterized by, The compressor comprises a stator core (10), a plurality of stator teeth (11) are arranged on the inner circle of the stator core (10), a stator slot (12) is formed between adjacent stator teeth (11), a plurality of stator core grooves (13) are arranged on the outer circumferential surface of the stator core (10), a stator winding (40) is arranged in each stator slot (12), the stator winding (40) is formed by a plurality of coils, a reinforcing member (20) is arranged between adjacent two coils, in at least one of the stator slot (12) and the stator core groove (13), and an insulation part (30) is arranged on each stator tooth (11). A stator winding (40) is arranged in each stator slot (12), the total cross-sectional area of the reinforcing member (20) is A, the total cross-sectional area of the stator slot (12) is B, the cross-sectional area of the stator yoke (14) of the stator core (10) is C, the total cross-sectional area of the stator core groove (13) is D, the total cross-sectional area of the insulation part (30) is E, and the total cross-sectional area of the conductor in the stator winding (40) is F, wherein 0.01×(C+D)≤A≤10×(B-E-F). The stator winding (40) is a distributed winding or a concentrated winding; the insulation part (30) comprises a slot insulation paper (31) and an insulation skeleton (32), and the total cross-sectional area of the insulation part (30) comprises the total cross-sectional area of the slot insulation paper (31) and the total cross-sectional area of the insulation skeleton (32). When the stator winding (40) is a concentrated winding, the reinforcing member (20) wraps the end of the stator winding (40), and the reinforcing member (20) fills the gap between the insulation skeleton (32) and the end of the stator winding (40). The inner edge of the reinforcing member (20) forms a circle. The compressor comprises a shell (50) and a pump body assembly (60), the pump body assembly (60) and the stator core (10) are arranged in the shell (50), the shell (50) has an upper cover (51) and a lower cover (52), one end of the stator winding (40) towards the upper cover (51) is an upper end, one end of the stator winding (40) towards the lower cover (52) is a lower end, the height between the upper end of the stator winding (40) and the lower end of the stator winding (40) is K, the length of the reinforcing member (20) in the axial direction of the stator core (10) is H, and the distance between the lower end of the stator winding (40) and the upper flange of the pump body assembly (60) is I, wherein 0<H<K+I.

2. The compressor of claim 1, wherein, The diameter of the circle is greater than the outer diameter of a rotor arranged in the stator core (10).

3. The compressor of claim 1, wherein, The reinforcing member (20) is made of at least one of alkyd resin, polyurethane, epoxy resin, phenolic resin, polyimide resin, polyacrylate, silicone resin or aromatic heterocyclic polymer.

4. The compressor of claim 1, wherein, The reinforcing member (20) is arranged in close contact with the stator yoke (14) of the stator core (10) and the stator winding (40).

5. The compressor of claim 1, wherein, ​ 6. The compressor of claim 1, wherein, The reinforcement (20) is fitted to the stator yoke (14) and the stator winding (40) of the stator core (10) via the insulating portion (30).

7. An air conditioner comprising a compressor, characterized by The compressor is the compressor according to any one of claims 1 to 6.

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