Stator assemblies, motors, compressors, and air conditioners
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- GUANGDONG MEIZHI COMPRESSOR
- Filing Date
- 2024-12-16
- Publication Date
- 2026-06-16
Smart Images
Figure 2026519624000001_ABST
Abstract
Description
Technical Field
[0001] This application claims the priority of the Chinese patent application with the patent application number 202410496043.7 and the title "Stator Assembly, Motor, Compressor and Air Conditioner" filed with the China National Intellectual Property Administration on April 24, 2024, and incorporates the full text thereof herein by reference.
[0002] This application relates to the technical field of air conditioners, and particularly to a stator assembly, a motor, a compressor and an air conditioner.
Background Art
[0003] As a core component of a compressor, the structural design of the motor directly affects the overall performance of the compressor, including vibration and noise of the compressor, oil circulation rate, compressor energy efficiency, reliability of the compressor, etc. However, the design of the rigidity of the stator of the compressor motor and the oil passage area of the stator are mutually restricted. To improve the user experience, the greater the rigidity of the motor, the better; the lower the noise of the motor, the better. To meet the requirements of the reliability of the compressor, the larger the oil passage area of the motor, the better. However, when the oil passage area of the motor stator is improved, the rigidity of the motor stator is reduced, the vibration and noise of the motor are increased, and thus the vibration and noise of the compressor are increased. To reduce the noise of the motor and improve the rigidity of the motor, it is necessary to reduce the area of the flow holes of the stator. However, when the area of the flow holes of the stator is reduced, the oil circulation rate of the compressor is decreased. Therefore, a compressor with low noise and high oil circulation rate has become a research goal in the industry. In the prior art, due to the unreasonable design of the stator structure of the motor, it is difficult to balance the rigidity and the oil passage area. Therefore, usually, problems such as too much noise of the motor and too high oil circulation rate are caused, which seriously affects the performance of the motor and the experience during use.
Summary of the Invention
[0004] This application aims to solve, to some extent, at least one of the technical problems in the related technology.
[0005] Therefore, one objective of this application is to propose a stator assembly.
[0006] Another object of this application is to propose a motor having the above-described stator assembly.
[0007] Another object of this application is to propose a compressor having the above-mentioned motor.
[0008] Another object of this application is to propose an air conditioner having the above-mentioned compressor.
[0009] The stator assembly according to this application comprises a stator core, the stator core having a plurality of teeth formed on it spaced apart in the circumferential direction, a yoke formed between two adjacent teeth, the teeth and the yoke together defining a stator rod for housing windings, a first outer wall formed on the outer circumference of the stator core projecting radially outward, the ends of the first outer wall and the center of the stator forming an angle, a plurality of the first outer walls are configured, the sum of the angles of the angles formed by the plurality of the first outer walls and the center of the stator is X1, and satisfies 180° ≤ X1 ≤ 300°.
[0010] The stator assembly according to this application is provided with a stator core, the stator core is provided with teeth, the teeth are configured as a plurality of teeth spaced apart in the circumferential direction of the stator core, a yoke is formed between two adjacent teeth, and the two adjacent teeth and the yoke between two adjacent teeth together define a single stator rod for housing windings. A plurality of first outer walls are formed on the outer circumference of the stator core, the plurality of first outer walls are spaced apart in the circumferential direction of the stator core and protrude radially outward, and the plurality of first outer walls may be combined with other structures of the stator assembly to improve the stability of the assembly of the stator core when assembled. The ends of the first outer wall and the center of the stator form an angle between them, and the sum of the angles formed by the multiple first outer walls and the center of the stator is X1, and the condition 180° ≤ X1 ≤ 300° is satisfied. This improves the rigidity of the stator assembly, ensures a sufficient surface area for cooling oil to flow through the stator assembly, reduces motor noise, and improves the oil circulation rate of the motor.
[0011] According to one embodiment of the present application, the stator core is provided with Q teeth and n first outer walls, the maximum angle formed by both ends of the first outer wall and the center of the stator is X1m, and X1m ≥ 360° / Q.
[0012] According to one embodiment of this application, Q / n ≥ 1.
[0013] According to one embodiment of this application, the angle of the angle formed by at least two of the first outer walls and the center of the stator is different.
[0014] According to one embodiment of the present application, the outer circumference of the stator core is further provided with a second outer wall that is recessed radially inward, and the second outer wall defines an oil passage for the flow of cooling oil.
[0015] According to one embodiment of this application, in the circumferential direction, at least one tooth portion is provided between two adjacent first outer walls and facing the second outer wall in the radial direction.
[0016] According to one embodiment of the present application, the stator core is formed with a third outer wall and a fourth outer wall, the third outer wall and the fourth outer wall are located on both sides of the second outer wall in the circumferential direction and are recessed radially inward, and the shape of at least one of the third outer wall and the fourth outer wall is different from the shape of the second outer wall.
[0017] According to one embodiment of this application, the second outer wall, the third outer wall, and the fourth outer wall are all formed with straight sections and / or curved sections.
[0018] According to one embodiment of the present application, the first outer wall includes a first sub-outer wall and a second sub-outer wall, the first sub-outer wall is provided radially opposite to at least one tooth portion, and the second sub-outer wall is provided radially opposite to the stator rod, and the angle α1 formed by the first sub-outer wall and the center of the stator is greater than the angle α2 formed by the second sub-outer wall and the center of the stator.
[0019] According to one embodiment of the present application, the first sub-outer wall is configured to be provided in multiples at intervals around the outer circumference of the stator core, the second sub-outer wall is provided between two adjacent first sub-outer walls, and at least one of the third outer wall, fourth outer wall, and second outer wall is provided between the second sub-outer wall and the adjacent first sub-outer wall.
[0020] According to one embodiment of the present application, at least one second sub-exterior wall is provided between two adjacent first sub-exterior walls, and at least one of the second exterior wall, the third exterior wall, and the fourth exterior wall is provided between two adjacent second sub-exterior walls.
[0021] The motor related to this application will be briefly described below.
[0022] The motor according to this application is equipped with the stator assembly described in the above embodiment. Since the motor according to this application is equipped with the stator assembly described in the above embodiment, after assembling the stator assembly and the motor, the stator assembly is arranged with a plurality of first outer walls rationally on the outer circumference of the stator core. As a result, the sum of the angles formed by the plurality of first outer walls and the center of the stator is within the range of 180° to 300°. This improves the rigidity of the stator assembly, ensures an oil passage area for the stator assembly, effectively reduces noise caused by motor operation, and avoids an excessively high oil circulation rate for the motor.
[0023] The compressor related to this application will be briefly described below.
[0024] The compressor according to this application comprises the motor and housing as in the above embodiment, with a housing cavity formed inside the housing for accommodating the motor. Since the compressor according to this application is equipped with the motor as in the above embodiment, after the motor is assembled in the housing cavity of the compressor, the housing prevents direct contact between the motor and the external structure, thereby improving the safety of the motor. Furthermore, by rationally providing a first outer wall on the stator assembly, the rigidity of the stator assembly is improved, a certain oil passage area is secured, noise during compressor operation is reduced, and the oil circulation rate of the compressor is ensured.
[0025] The air conditioner related to this application will be briefly described below.
[0026] The air conditioner according to this application is equipped with the compressor described in the above embodiment, and because the air conditioner according to this application is equipped with the compressor described in the above embodiment, after the compressor and air conditioner are assembled, the oil circulation rate of the compressor itself is low, which improves the service life and efficiency of the compressor, and consequently improves the safety of the air conditioner, and also reduces the noise of the compressor, which improves the user experience of the air conditioner.
[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application.
Brief Description of the Drawings
[0028] [Figure 1] It is a layout schematic diagram of the first outer wall in the stator assembly according to an embodiment of the present application. [Figure 2] It is a structural diagram of the stator assembly according to an embodiment of the present application. [Figure 3] It is a schematic diagram of the stator assembly according to another embodiment of the present application. [Figure 4] It is a structural diagram of the stator lamination constituting the stator assembly of the embodiment shown in FIG. 3. [Figure 5] It is a structural diagram of the stator assembly in the motor according to an embodiment of the present application. [Figure 6] It is a structural diagram of the compressor according to an embodiment of the present application. [Figure 7] It is a change diagram of the stator rigidity and the oil circulation rate of the compressor according to an embodiment of the present application. [Figure 8] It is a relationship diagram between the air conditioner and the compressor according to an embodiment of the present application.
Modes for Carrying Out the Invention
[0029] Hereinafter, embodiments of the present application will be described in detail. The embodiments are shown in the drawings, where the same or similar reference numerals from beginning to end indicate the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary ones intended to explain the present application and are not to be construed as limiting the present application.
[0030] As the core component of a compressor, the motor's structural design directly impacts the overall performance of the compressor, including vibration and noise, oil circulation rate, energy efficiency, and reliability. However, the design of the stator rigidity and oil circulation area of the compressor motor are mutually constrained. To improve the user experience, higher motor rigidity and lower motor noise are preferable. To meet the reliability requirements of the compressor, a larger oil circulation area is preferable. However, increasing the oil circulation area of the motor stator reduces the motor stator rigidity, increasing motor vibration and noise, and consequently increasing compressor vibration and noise. To reduce motor noise and improve motor rigidity, it is necessary to reduce the area of the stator's flow holes, but reducing the area of the stator's flow holes lowers the compressor's oil circulation rate. Therefore, compressors with low noise and high oil circulation rates are a research goal in the industry. In conventional technology, the stator structure of motors is poorly designed, making it difficult to balance rigidity and oil flow area. Consequently, this usually leads to problems such as excessive motor noise and high oil circulation rates, seriously affecting motor performance and user experience.
[0031] The stator assembly according to the embodiment of this application will be described below with reference to Figures 1 to 8.
[0032] The stator assembly 1 according to this application comprises a stator core 11, the stator core 11 having a plurality of teeth 111 spaced apart in the circumferential direction, a yoke portion 112 formed between two adjacent teeth 111, the teeth 111 and the yoke portion 112 together defining a stator rod 113 for housing windings, a first outer wall 101 projecting radially outward is formed on the outer circumference of the stator core 11, the ends of the first outer wall 101 and the center 105 of the stator form an angle, multiple first outer walls 101 are configured, the sum of the angles of the angle formed by the multiple first outer walls 101 and the center 105 of the stator is X1 and satisfies "180°≦X1≦300°".
[0033] According to the stator assembly 1 of this application, a stator core 11 is provided, the stator core 11 is provided with teeth 111, the teeth 111 are configured as a plurality of teeth spaced apart in the circumferential direction of the stator core 11, a yoke portion 112 is formed between two adjacent teeth 111, and the yoke portion 112 between two adjacent teeth 111 together defines a stator rod 113, the stator rod 113 is used to house windings. A plurality of first outer walls 101 are formed on the outer circumference of the stator core 11, the plurality of first outer walls 101 are spaced apart in the circumferential direction of the stator core 11 and protrude radially outward, and the plurality of first outer walls 101 may be combined with other structures of the stator assembly 1 to improve the stability of the assembly of the stator core 11 when assembled. The ends of the first outer wall 101 and the center 105 of the stator form an angle between them, and the sum of the angles of the angle between the multiple first outer walls 101 and the center 105 of the stator is X1, and as shown in Figure 1, X1 = X11 + X12 + X13 + X14 + X15 + X16, and the condition 180° ≤ X1 ≤ 300° can be understood as the sum of the angles of the angle between the multiple first outer walls 101 and the center 105 of the stator being within the range of 180° to 300°. Since the first outer wall 101 protrudes radially outward, the installation of the first outer wall 101 affects the structural strength of the stator assembly 1 and the area over which the cooling oil flows on the outer circumference of the stator core 11.
[0034] As can be understood, the first outer wall 101 is provided on the outer circumferential wall of the stator core 11 and protrudes radially outward, so the first outer wall 101 can improve the rigidity of the stator core 11. The larger the angle between the first outer wall 101 and the center 105 of the stator, the longer the arc length of the first outer wall 101 becomes. When the arc length of the first outer wall 101 becomes longer, the area covered by the first outer wall 101 on the outer surface of the stator core 11 increases. At this time, the oil passage area on the outer circumferential surface of the stator core 11 decreases. Therefore, by adjusting the angle between the first outer wall 101 and the center 105 of the stator, the rigidity and oil passage area of the stator assembly 1 can be adjusted.
[0035] Specifically, regarding the rigidity of the stator assembly 1, if the sum of the angles of the angle formed by the multiple first outer walls 101 and the center 105 of the stator is less than 180°, the rigidity of the stator assembly 1 is low. Conversely, if the sum of the angles of the angle formed by the multiple first outer walls 101 and the center 105 of the stator is greater than 300°, the rigidity of the stator assembly 1 approaches a single fixed value. Regarding the flow area of the coolant fluid in the stator assembly 1, if the sum of the angles of the angle formed by the multiple first outer walls 101 and the center 105 of the stator is less than 180°, the flow area of the coolant fluid on the outer circumference of the stator core 11 is large, and the oil circulation rate of the compressor 30 working in cooperation with the stator assembly 1 can be reduced. If the sum of the angles of the angle formed by the multiple first outer walls 101 and the center 105 of the stator is greater than 300°, the flow area of the coolant fluid on the outer circumference of the stator core 11 is small, and the oil circulation rate of the compressor 30 working in cooperation with the stator assembly 1 is increased. As described above, when the sum of the angles of the angle formed by the multiple first outer walls 101 and the center 105 of the stator is within the range of 180° to 300°, the rigidity of the stator assembly 1 can be improved, and the stator assembly 1 can secure an area for the cooling oil to flow through it, thereby reducing the noise of the motor 20 and improving the oil circulation rate of the motor 20.
[0036] As shown in Figure 7, when the value of X1 is less than 180°, the change in stator stiffness is relatively large. This can be understood as the sum of the arc lengths of the first outer wall 101 having a serious impact on the stiffness of the stator assembly 1 within this range. In this case, the change in the oil circulation rate of the compressor 30 is stable, and if the stiffness is low, the noise generated by the compressor 30 is high. When the value of X1 is greater than 300°, the change in stator stiffness is stable. This can be understood as the sum of the arc lengths of the first outer wall 101 having no significant impact on the stiffness of the stator within this range. In this case, the oil circulation rate of the compressor 30 increases with increasing X1, and if the oil circulation rate is too high, it reduces the service life and efficiency of the compressor 30. Therefore, in order to ensure the stiffness of the stator assembly 1 and the oil circulation rate of the compressor 30, the value of X1 needs to be within the range of 180° to 300°.
[0037] In some embodiments, the value of X1 may be 180°, 200°, 220°, 240°, 260°, 280°, 300°, etc.
[0038] According to one embodiment of the present application, the stator core 11 is provided with Q teeth 111 and n first outer walls 101, the maximum value of the angle formed by both ends of the first outer walls 101 and the center 105 of the stator is X1m, and X1m ≥ 360° / Q. Specifically, n first outer walls 101 are provided on the outer circumference of the stator core 11, and Q teeth 111 are provided on the inner circumference of the stator core 11. Here, the maximum angle X1m among the angles formed by the n first outer walls 101 and the center 105 of the stator can be understood as meaning that there exists a first outer wall 101 with the longest arc length among the n first outer walls 101, the angle of the angle formed by this first outer wall 101 and the center 105 of the stator is X1m, and X1m ≥ 360° / Q. Alternatively, the angle formed by the first outer wall 101 with the longest arc length and the center 105 of the stator can be understood as being greater than or equal to the angle formed by the teeth 111 and the center 105 of the stator. Such an installation configuration can increase the circumferential length of the first outer walls 101 and improve the rigidity of the stator assembly 1.
[0039] According to one embodiment of this application, Q / n ≥ 1. As shown in Figure 2, Q represents the number of teeth 111, and n represents the number of first outer walls 101. In this embodiment, Q / n ≥ 1 can be understood as the number of teeth 111 being equal to or greater than the number of first outer walls 101. For example, there may be 12 teeth 111 and 6 first outer walls 101. This configuration allows for both the rigidity of the stator assembly 1 and the setting of the oil passage area when the first outer walls 101 are arranged, thereby improving the rigidity of the stator assembly 1 and reducing the oil circulation rate.
[0040] According to one embodiment of this application, the angle of the angle formed by at least two first outer walls 101 and the center 105 of the stator is different. In actual manufacturing, at least two first outer walls 101 with different arc lengths may be configured among the multiple first outer walls 101, that is, the angle of the angle formed by at least two first outer walls 101 and the center 105 of the stator may be different. This installation method diversifies the first outer walls 101, making it possible to adapt to motors 20 with different specifications when assembling, and improving the versatility of the stator assembly 1.
[0041] According to one embodiment of this application, a second outer wall 102 is provided on the outer circumference of the stator core 11, which is recessed radially inward, and the second outer wall 102 defines an oil passage for the flow of cooling oil.
[0042] Specifically, the stator assembly 1 is further provided with a second outer wall 102 that is recessed radially inward on the outer circumference of the stator core 11. The second outer wall 102, by being recessed radially inward, can form an oil passage for the flow of cooling oil, thereby realizing the cooling function of the stator assembly 1.
[0043] According to one embodiment of this application, in the circumferential direction, at least one tooth portion 111 is provided between two adjacent first outer walls 101 and is provided facing radially toward the second outer wall 102. As shown in Figure 4, the stator core 11 may be a stack of stator laminations, in which at least one tooth portion 111 is provided between two adjacent first outer walls 101 and the tooth portion 111 faces radially toward the second outer wall 102. By having the tooth portion 111 face the second outer wall 102, the structural strength at the installation position of the second outer wall 102 can be improved, and by having the tooth portion 111 provided between two adjacent first outer walls 101, the connection strength between the first outer wall 101 and the second outer wall 102 can be improved, thereby improving the rigidity of the stator assembly 1.
[0044] According to one embodiment of the present application, the stator core 11 is provided with a third outer wall 103 and a fourth outer wall 104, the third outer wall 103 and the fourth outer wall 104 are located on both sides of the second outer wall 102 in the circumferential direction and are recessed radially inward, and the shape of at least one of the third outer wall 103 and the fourth outer wall 104 is different from the shape of the second outer wall 102. Specifically, the stator core 11 is further provided with a third outer wall 103 and a fourth outer wall 104, the third outer wall 103 and the fourth outer wall 104 are located on both sides of the second outer wall 102 in the circumferential direction and are recessed radially inward of the stator assembly 1, and like the second outer wall 102, the third outer wall 103 and the fourth outer wall 104 can also form oil passages, further improving the cooling effect of the stator assembly 1. Furthermore, the fact that the shape of at least one of the third outer wall 103 and the fourth outer wall 104 differs from the shape of the second outer wall 102 may be understood during processing as the three entities being different from each other, or as the shapes of the third outer wall 103 and the fourth outer wall 104 being the same but different from the shape of the second outer wall 102. The shape setting configuration of the third outer wall 103 and the fourth outer wall 104 and the second outer wall 102 can achieve foolproof manufacturing of the stator assembly 1.
[0045] According to one embodiment of this application, the second outer wall 102, the third outer wall 103, and the fourth outer wall 104 are all formed of straight sections and / or curved sections. Specifically, as shown in Figures 3 to 4, the second outer wall 102 may be composed of both straight sections and curved sections, and the third outer wall 103 and the fourth outer wall 104 may be composed of curved sections. By configuring the second outer wall 102, the third outer wall 103, and the fourth outer wall 104 with both straight sections and curved sections, the oil passages through which the cooling oil flows can be diversified, and the contact area between the cooling oil and the stator assembly 1 can be increased, thereby improving the cooling effect.
[0046] In some embodiments, the center position of the second outer wall 102 may be a groove formed by a straight section, and the design of the groove can cause the second outer wall 102 to come into contact with other structures of the stator assembly 1, thereby preventing the stator core 11 from rotating unintentionally during operation.
[0047] According to one embodiment of the present application, the first outer wall 101 includes a first sub-outer wall 1011 and a second sub-outer wall 1012, wherein the first sub-outer wall 1011 is provided radially opposite to at least one tooth portion 111, and the second sub-outer wall 1012 is provided radially opposite to the status rod 113, and the angle α1 formed by the first sub-outer wall 1011 and the center 105 of the stator is greater than the angle α2 formed by the second sub-outer wall 1012 and the center 105 of the stator.
[0048] Specifically, the first outer wall 101 may include a first sub-outer wall 1011 and a second sub-outer wall 1012. In this embodiment, the first outer wall 101 can be understood as having two types, a first sub-outer wall 1011 and a second sub-outer wall 1012. Here, the first sub-outer wall 1011 faces radially directly toward at least one tooth portion 111, so that the tooth portion 111 supports the position of the first sub-outer wall 1011 and improves the structural strength of the first sub-outer wall 1011. The second sub-outer wall 1012 faces radially directly toward the status rod 113, and the second sub-outer wall 1012 protrudes radially outward, so that the radial dimension of the yoke portion 112 is increased and the structural strength of the yoke portion 112 is improved. At the same time, the angle formed by the first sub-outer wall 1011 and the center 105 of the stator is α1, the angle formed by the second sub-outer wall 1012 and the center 105 of the stator is α2, and α1 > α2 can be understood as the arc length of the first sub-outer wall 1011 being longer than the arc length of the second sub-outer wall 1012. Thus, the stator assembly 1 is provided with a first outer wall 101 having a different arc length on the outer circumference of the stator core 11, further improving the rigidity of the outer circumference of the stator assembly 1.
[0049] According to one embodiment of the present application, the first sub-outer wall 1011 is configured to be provided in multiple locations at intervals around the outer circumference of the stator core 11, the second sub-outer wall 1012 is provided between two adjacent first sub-outer walls 1011, and at least one of the third outer wall 103, fourth outer wall 104, and second outer wall 102 is provided between the second sub-outer wall 1012 and the adjacent first sub-outer wall 1011. Specifically, as shown in Figures 3 to 4, the stator assembly 1 improves the rigidity of the stator assembly 1 by sequentially spacing the first sub-outer walls 1011 and the second sub-outer walls 1012 by installing the second sub-outer wall 1012 between two adjacent first sub-outer walls 1011. At the same time, the third outer wall 103 or the fourth outer wall 104 may be provided between the second sub-outer wall 1012 and its adjacent first sub-outer wall 1011, so that both sides of the third outer wall 103 or the fourth outer wall 104, which are recessed radially inward, are connected to the first outer wall 101, which protrudes radially outward, thereby further improving the rigidity of the stator assembly 1.
[0050] In some other embodiments, the second outer wall 102 may be provided between the second sub-outer wall 1012 and the adjacent first sub-outer wall 1011, or at least one of the third outer wall 103 and the fourth outer wall 104 may be provided together with the second outer wall 102 between the second sub-outer wall 1012 and the adjacent first sub-outer wall 1011, and the specific installation configuration may be determined according to the actual circumstances.
[0051] According to one embodiment of the present application, at least one second sub-exterior wall 1012 is provided between two adjacent first sub-exterior walls 1011, and at least one of the second exterior wall 102, third exterior wall 103, and fourth exterior wall 104 is provided between two adjacent second sub-exterior walls 1012. Preferably, multiple second sub-external walls 1012 may be provided between two adjacent first sub-external walls 1011. For example, as shown in Figures 3 and 4, two second sub-external walls 1012 may be provided between two adjacent first sub-external walls 1011, and a second external wall 102 may be provided between two adjacent second sub-external walls 1012. This allows a portion of the outer circumference of the stator core 11 to be connected in the circumferential direction by two second sub-external walls 1012 between two first sub-external walls 1011, and by one second external wall 102 between two second sub-external walls 1012, with the second external wall 102 and the first external wall 101 being connected to each other, thereby improving the rigidity of the stator core 11.
[0052] In some other embodiments, a third outer wall 103 or a fourth outer wall 104 may be provided between two adjacent second sub-outer walls 1012, or may be provided together with the third outer wall 103 and the fourth outer wall 104.
[0053] The motor 20 related to this application will be briefly described below.
[0054] According to the motor 20 of this application, since the motor 20 of this application is provided with the stator assembly 1 of the above embodiment, after assembling the stator assembly 1 and the motor 20, the stator assembly 1 is arranged in a rational manner on the outer circumference of the stator core 11, so that the sum of the angles formed by the multiple first outer walls 101 and the center 105 of the stator is in the range of 180° to 300°, thereby improving the rigidity of the stator assembly 1, securing the oil passage area of the stator assembly 1, effectively reducing noise caused by the operation of the motor 20, and avoiding an excessively high oil circulation rate of the motor 20.
[0055] The compressor 30 described in this application will be briefly explained below.
[0056] The compressor 30 according to this application includes the motor 20 and housing 301 as in the above embodiment, with a housing cavity for accommodating the motor 20 formed inside the housing 301. Since the compressor 30 according to this application is equipped with the motor 20 as in the above embodiment, after the motor 20 is assembled in the housing cavity of the compressor 30, the housing 301 prevents direct contact between the motor 20 and the external structure, thereby improving the safety of the motor 20. Furthermore, by rationally providing the first outer wall 101 on the stator assembly 1, the rigidity of the stator assembly 1 is improved, a certain oil passage area is secured, noise during operation of the compressor 30 is reduced, and the oil circulation rate of the compressor 30 is ensured.
[0057] The following is a brief description of the air conditioner 40 related to this application.
[0058] The air conditioner 40 according to this application is equipped with the compressor 30 in the above embodiment, and because the air conditioner 40 according to this application is equipped with the compressor 30 in the above embodiment, after the compressor 30 and the air conditioner 40 are assembled, the oil circulation rate of the compressor 30 itself is low, which improves the service life and efficiency of the compressor 30, and consequently improves the safety of the air conditioner 40, and the noise of the compressor 30 is low, which improves the user experience of the air conditioner 40.
[0059] Note that the symbols X11, X12, X13, X14, X15, X16, and X1m shown in Figures 1 and 3 simply indicate the angles of the corresponding included angles.
[0060] Note that Figure 8 merely shows the relationship between the air conditioner 40 and the compressor 30.
[0061] In the description of this application, directions or positional relationships indicated by terms such as "center," "vertical," "horizontal," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are directions or positional relationships shown based on the drawings and are solely for the purpose of facilitating and simplifying the description of this application. They do not indicate or imply that the referred devices or elements have a particular orientation, are composed of a particular orientation, or must be operated in a particular orientation, and therefore should not be understood as limiting this application.
[0062] Furthermore, the terms “first” and “second” are for descriptive purposes only and should not be understood as indicating or implying relative importance, or implicitly specifying the number of technical features. Therefore, features limited by “first” and “second” may explicitly or implicitly include one or more such features. In this description, “multiple” means two or more unless otherwise clearly and specifically defined.
[0063] In this application, unless otherwise specified or limited, terms such as “attachment,” “connection,” “connection,” and “fixing” should be understood in a broad sense, for example, that a connection may be fixed, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or that there may be communication within two elements or an interaction relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in this application based on the specific circumstances.
[0064] In this application, unless otherwise specified or limited, the presence of a first feature "above" or "below" a second feature means that the first and second features may be in direct contact or indirectly in contact via an intermediate medium. Furthermore, the presence of a first feature "above," "above," and "upper side" of a second feature means that the first feature may be directly above or diagonally above the second feature, or simply indicates that the height of the first feature is greater than the height of the second feature. The presence of a first feature "below," "below," and "below side" a second feature means that the first feature may be directly below or diagonally below the second feature, or simply indicates that the height of the first feature is lower than the height of the second feature.
[0065] In this specification, any reference to terms such as “one embodiment,” “several embodiments,” “exemplary examples,” “examples,” “specific examples,” or “several examples” means that the specific features, structures, materials, or characteristics described with reference to such embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. In addition, a person skilled in the art may combine different embodiments or examples and features in different embodiments or examples as described herein, provided that it does not create a conflict.
[0066] Although embodiments of this application have been illustrated and described, as will be understood by those skilled in the art, these embodiments are illustrative and should not be understood as limiting this application, and those skilled in the art may modify, alter, substitute, and transform these embodiments within the scope of this application. [Explanation of symbols]
[0067] 1... Stator assembly, 11... Stator core, 111... Teeth section, 112... Yoke section, 113... Stator rod, 101... First outer wall, 1011... First sub-outer wall, 1012... Second sub-outer wall, 102... Second outer wall, 103... Third outer wall, 104... Fourth outer wall, 105... Stator center, 20... Motor, 30... Compressor, 301... Housing, 40... Air conditioner.
Claims
1. The stator core is provided, and the stator core has a plurality of teeth formed on it that are spaced apart in the circumferential direction, and a yoke is formed between two adjacent teeth, and the teeth and the yoke together define a stator rod for housing the windings. A first outer wall is formed on the outer circumference of the stator core, projecting radially outward, and both ends of the first outer wall and the center of the stator form an angle, and multiple such first outer walls are formed, and the sum of the angles of the angles formed by the multiple first outer walls and the center of the stator is X1, and satisfies 180° ≤ X1 ≤ 300°. The stator core is provided with Q teeth and n first outer walls, the maximum angle formed by both ends of the first outer wall and the center of the stator is X1m, and Q / n ≥ 1 and X1m ≥ 360° / Q. Stator assembly.
2. The angle of the angle formed by at least two of the aforementioned first outer walls and the center of the stator is different. The stator assembly according to claim 1.
3. The outer circumference of the stator core is provided with a second outer wall that is recessed radially inward, and the second outer wall defines an oil passage for the flow of cooling oil. The stator assembly according to claim 2.
4. In the circumferential direction, at least one tooth portion is provided between two adjacent first outer walls and is provided facing the second outer wall in the radial direction. The stator assembly according to claim 3.
5. The stator core has a third outer wall and a fourth outer wall formed thereon, the third outer wall and the fourth outer wall are located on both sides of the second outer wall in the circumferential direction and are recessed radially inward, and the shape of at least one of the third outer wall and the fourth outer wall is different from the shape of the second outer wall. The stator assembly according to claim 3 or 4.
6. The second exterior wall, the third exterior wall, and the fourth exterior wall are all formed with straight sections and / or curved sections. The stator assembly according to claim 5.
7. The first exterior wall is, A first sub-outer wall provided facing radially in front of at least one tooth portion, A second sub-outer wall is provided facing the status rod in the radial direction, The angle α1 formed by the first sub-external wall and the center of the stator is greater than the angle α2 formed by the second sub-external wall and the center of the stator. The stator assembly according to claim 5 or 6.
8. The first sub-external wall is configured to be provided in multiples at intervals around the outer circumference of the stator core, the second sub-external wall is provided between two adjacent first sub-external walls, and at least one of the third, fourth, and second external walls is provided between the second sub-external wall and the adjacent first sub-external wall. The stator assembly according to claim 7.
9. Between two adjacent first sub-exterior walls, at least one second sub-exterior wall is provided, and between two adjacent second sub-exterior walls, at least one of the second exterior wall, the third exterior wall, and the fourth exterior wall is provided. The stator assembly according to claim 7 or 8.
10. A stator assembly comprising the one described in any one of claims 1 to 9, Motor.
11. A housing with an internal containment cavity, The motor according to claim 10, which is housed in the aforementioned housing cavity, Compressor.
12. The compressor is provided according to claim 11. Air conditioner.