Compressor and temperature regulating device

Abstract

The application discloses a compressor and a temperature regulating device, relates to the technical field of refrigeration, and aims at solving the problem of large iron loss of a motor of a compressor in the prior art, which affects the working efficiency of the compressor. The compressor comprises a container with an inner circumferential surface and a motor arranged in the container, and the motor comprises a stator with an iron core. The iron core comprises a ring-shaped yoke part and nine protruding parts, and the inner circumferential surface surrounds the axis of the yoke part once. The nine protruding parts are connected to the outer circumferential wall surface of the yoke part and are uniformly distributed along the circumferential direction of the yoke part. The inner circumferential surface comprises eight side surfaces connected in sequence. One of the first contact areas of the first protruding part is in abutment with the first side surface, and the other first contact area is in abutment with the second side surface. In the other eight protruding parts, the side surface of any protruding part away from the yoke part has a second contact area, and one second contact area is in abutment with one side surface of the inner circumferential surface. The compressor is used for compressing medium.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and more particularly to a compressor and a temperature control device. Background Technology

[0002] A compressor is a fluid machine that raises a low-pressure medium to a high-pressure medium, and is commonly used in equipment such as air conditioners and refrigerators.

[0003] A compressor typically includes a housing and a motor housed within the housing. The motor includes a stator, and the stator's iron core is usually press-fitted to the inner wall of the housing using a thermoforming process, thereby connecting the motor stator to the housing. In related technologies, the entire outer peripheral wall of the stator's iron core is in contact with the inner wall of the housing to ensure a secure connection between the stator and the housing.

[0004] However, after the outer casing is connected to the stator, the entire outer peripheral wall of the stator's iron core is in contact with the inner wall of the outer casing. This causes the outer casing to exert compressive stress on the iron core on the entire outer peripheral wall of the iron core, resulting in a large compressive stress on the stator. Consequently, the permeability of the iron core decreases, the iron loss of the motor increases, and the working efficiency of the compressor is affected. Summary of the Invention

[0005] The embodiments of the present invention provide a compressor and a temperature regulating device, which solves the problem that the motor of the compressor has large iron loss, which affects the working efficiency of the compressor in the prior art.

[0006] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0007] According to a first aspect of this application, a compressor is provided. The compressor includes a container with an inner circumferential surface and a motor disposed within the container. The motor includes a stator with an iron core. The iron core includes an annular magnetic yoke and nine protrusions. The inner circumferential surface surrounds the axis of the magnetic yoke. The nine protrusions are connected to the outer circumferential wall of the magnetic yoke and are evenly distributed along the circumference of the magnetic yoke. The inner circumferential surface includes eight side surfaces connected end to end. Two of the side surfaces of the inner circumferential surface are a first side surface and a second side surface, respectively. One of the nine protrusions is a first protrusion. The side surface of the first protrusion away from the magnetic yoke has two first contact areas spaced apart along the circumferential direction of the magnetic yoke. One of the first contact areas abuts against the first side surface, and the other first contact area abuts against the second side surface. Among the other eight protrusions, any one of the protrusions has a second contact area on the side surface away from the magnetic yoke, and one of the second contact areas abuts against a side surface of the inner circumferential surface.

[0008] The compressor provided in this application has eight side surfaces connected end-to-end on the inner circumferential surface of the container, while the iron core has nine protrusions evenly distributed along the circumference of the yoke. Therefore, the number of side surfaces on the inner circumferential surface of the container is not equal to the number of protrusions in the iron core. Furthermore, the first protrusion has two positions (i.e., two first contact areas) that abut against the inner circumferential surface of the container, while the remaining positions, such as the position between the two first contact areas, do not abut against the inner circumferential surface of the container. In other words, the first protrusion only partially abuts against the inner circumferential surface of the container. Of the other eight protrusions, each protrusion also only partially (i.e., a second contact area) abuts against one side surface of the inner circumferential surface, while the portion outside the second contact area does not abut against the inner circumferential surface of the container.

[0009] In this way, the compressive stress exerted on the iron core by the inner circumference of the container will not be evenly distributed on the circumference of the iron core. It also reduces the number of areas on the iron core subjected to compressive stress from the inner circumference of the container, and reduces the contact area between the iron core and the inner circumference of the container. As a result, after the iron core is installed into the container through the heat-shrinking process, the area on the iron core subjected to compressive stress from the inner circumference of the container is reduced, thereby increasing the permeability of the iron core, reducing the iron loss of the motor, and thus improving the working efficiency of the motor.

[0010] In some embodiments, the first side and the second side are adjacent, and the included angle formed by the first side and the second side is the first angle; the orthographic projection of the surface of the convex part away from the magnetic yoke part on the first plane is the first edge line, and the midpoint of the first edge line of the first convex part is located on the angle bisector of the first angle. In this way, the contact area between the iron core and the inner circumferential surface of the container can be further reduced, thereby improving the working efficiency of the motor.

[0011] In some embodiments, the first edge is an arc, and the orthographic projection of the yoke onto the first plane is a first ring, with the center of the first edge coinciding with the center of the first ring. This results in a smaller contact area when the surface of the protrusion furthest from the yoke abuts against the inner circumferential surface of the container. Consequently, the area over which the iron core experiences compressive stress from the inner circumferential surface of the container is reduced, thereby improving the motor's operating efficiency.

[0012] In some embodiments, the iron core further includes nine teeth connected to the inner peripheral wall of the yoke, and the nine teeth are evenly distributed along the circumference of the yoke. Any two adjacent teeth and the inner peripheral wall of the yoke define a tooth groove, and the nine protrusions correspond one-to-one with the nine tooth grooves. In this way, the position corresponding to any tooth groove on the iron core can be reinforced by a protrusion, thereby improving the structural strength of the iron core and thus improving the structural strength of the motor, making the motor operation more stable.

[0013] In some embodiments, the portion of the inner circumferential wall of the yoke located between two adjacent teeth is the first inner circumferential wall, and the orthographic projection of the first inner circumferential wall onto the first plane is the second sideline; the length of the first sideline is less than or equal to the length of the second sideline. This allows for both reinforcement of the core's structural strength through the protrusions and a relatively large circumferential spacing between adjacent protrusions in the yoke, thereby ensuring the circumferential dimensions of the first medium flow channel in the yoke, enabling smoother flow of the refrigerant within the first medium flow channel.

[0014] In some embodiments, the portion of the outer peripheral wall of the yoke located between two adjacent protrusions is the first outer peripheral wall, and the orthographic projection of the first outer peripheral wall onto the first plane is the third edge line; the third edge line includes a first line segment, a second line segment, and a third line segment connected in sequence, the second line segment being an arc segment, and the concave side of the second line segment facing the inner peripheral surface. Through the above arrangement, the transition of magnetic flux distribution from the portion of the teeth to the portion of the yoke is smoother, resulting in a more uniform distribution of magnetic flux in the iron core and improving the permeability of the iron core.

[0015] In some embodiments, the first line segment is also an arc segment, with its concave side facing the yoke and tangent to the second line segment; and / or, the third line segment is also an arc segment, with its concave side facing the yoke and tangent to the second line segment. Through these configurations, the transition of magnetic flux distribution from the toothed portion to the yoke portion can be made smoother, thereby further improving the permeability of the core.

[0016] In some embodiments, a second medium flow channel is provided on the protrusion, and the second medium flow channel extends through the protrusion along the axial direction of the magnetic yoke. This increases the flow path of the refrigerant, allowing the refrigerant to flow more smoothly to the refrigerant outlet.

[0017] In some embodiments, the container wall thickness is greater than or equal to 4.5 mm and less than or equal to 5.5 mm; and / or, the maximum radial dimension of the iron core is greater than or equal to 159 mm and less than or equal to 175 mm.

[0018] According to a second aspect of this application, a temperature regulating device is provided, the temperature regulating device including the compressor described above.

[0019] It should be noted that the technical effects of the second implementation method can be found in the technical effects of the corresponding implementation method in the first aspect, and will not be repeated here. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the compressor structure in an embodiment of this application;

[0021] Figure 2This is a cross-sectional view of the compressor in an embodiment of this application;

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point M;

[0023] Figure 4 This is a schematic diagram of the iron core structure in the embodiments of this application;

[0024] Figure 5 This is a schematic diagram illustrating the connection relationship between the compressor container and the iron core in related technologies;

[0025] Figure 6 This is a schematic diagram of the container structure in an embodiment of this application;

[0026] Figure 7 This is one of the schematic diagrams showing the connection relationship between the compressor container and the iron core in the embodiments of this application;

[0027] Figure 8 This is the second schematic diagram showing the connection relationship between the compressor container and the iron core in an embodiment of this application;

[0028] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point P1;

[0029] Figure 10 for Figure 8 Enlarged schematic diagram of the structure at point P2;

[0030] Figure 11 for Figure 8 Enlarged schematic diagram of the structure at point P3;

[0031] Figure 12 for Figure 8 Enlarged schematic diagram of the structure at P4 in the middle;

[0032] Figure 13 for Figure 8 Enlarged schematic diagram of the structure at point P5;

[0033] Figure 14 for Figure 8 Enlarged schematic diagram of the structure at P6 in the middle;

[0034] Figure 15 for Figure 8 Enlarged schematic diagram of the structure at P7 in the middle;

[0035] Figure 16 for Figure 8 Enlarged schematic diagram of the structure at P8 in the middle;

[0036] Figure 17 for Figure 8 Enlarged schematic diagram of the structure at P9;

[0037] Figure 18 This is a partial structural diagram of the compressor in an embodiment of this application;

[0038] Figure 19 This is one of the top views of the iron core in the embodiments of this application;

[0039] Figure 20 for Figure 19 Enlarged schematic diagram of the structure at point N;

[0040] Figure 21 This is the second top view of the iron core in the embodiments of this application.

[0041] Figure label:

[0042] 1-Container; 11-Enclosure; 12-Top plate; 13-Bottom plate; 14-Refrigerant outlet; 15-Inner circumferential surface; 151-First side surface; 152-Second side surface; β-First corner;

[0043] 2-Compression mechanism; 21-Cylinder; 22-Eccentric rotor;

[0044] 3-Motor; 31-Stator; 32-Rotor; 33-Iron core; 331-Yoke; 331A-First inner peripheral wall; 331B-Second edge; 331C-First outer peripheral wall; 331D-Third edge; 331E-First line segment; 331F-Second line segment; 331G-Third line segment;

[0045] 332 - Protrusion; 3321 - First protrusion; 3322 - Second protrusion; 3323 - Third protrusion; 3324 - Fourth protrusion; 3325 - Fifth protrusion; 3326 - Sixth protrusion; 3327 - Seventh protrusion; 3328 - Eighth protrusion; 3329 - Ninth protrusion; 332A - First surface; 332B - First edge line; 332C - Second medium flow channel; 333 - Tooth; 34 - Tooth groove;

[0046] 4-First medium flow channel. Detailed Implementation

[0047] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0048] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, when describing pipelines or channels, the terms "connection" and "linkage" used in this application have the meaning of enabling conduction. The specific meaning needs to be understood in conjunction with the context.

[0051] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0052] This application provides a temperature regulating device. This temperature regulating device can be an air conditioner, refrigerator, air source water heater, etc.

[0053] Temperature control equipment includes a compressor. The compressor is mainly used to compress the refrigerant in the temperature control equipment to change the state of the refrigerant, thereby regulating the temperature through the circulation of the refrigerant.

[0054] For example, the temperature regulating device is an air conditioner. The temperature regulating device also includes an outdoor heat exchanger, an indoor heat exchanger, and a throttling valve. The compressor, indoor heat exchanger, throttling valve, and outdoor heat exchanger are connected in sequence via refrigerant pipes.

[0055] In cooling mode, the refrigerant is compressed by the compressor to form a high-temperature, high-pressure gaseous refrigerant. After flowing out of the compressor, the high-temperature, high-pressure gaseous refrigerant enters the outdoor heat exchanger, where it exchanges heat and condenses into a high-temperature, high-pressure liquid refrigerant, which then flows out of the outdoor heat exchanger.

[0056] The refrigerant flowing from the outdoor heat exchanger enters the expansion valve, where it is throttled and depressurized to form a low-temperature, low-pressure liquid refrigerant. This liquid refrigerant then flows out of the expansion valve and enters the indoor heat exchanger, where it undergoes heat exchange to form a low-temperature, low-pressure gaseous refrigerant. During this transition from liquid to gas, the refrigerant absorbs heat, thus lowering the temperature of the air outside the indoor heat exchanger. This cooled air then enters the room, further reducing the indoor temperature.

[0057] In heating mode, the refrigerant is compressed by the compressor to form a high-temperature, high-pressure gaseous refrigerant. This gaseous refrigerant flows out of the compressor and into the indoor heat exchanger, where it condenses into a high-temperature, high-pressure liquid refrigerant after heat exchange. It then flows out of the indoor heat exchanger. During this process, the refrigerant releases heat as it changes from gas to liquid, thus raising the temperature of the outside air. This warmer air then enters the room, further increasing the indoor temperature.

[0058] The refrigerant flowing out of the indoor heat exchanger enters the expansion valve, and after being throttled and depressurized by the expansion valve, it forms a low-temperature, low-pressure liquid refrigerant. The low-temperature, low-pressure liquid refrigerant then flows out of the expansion valve and enters the outdoor heat exchanger, where it undergoes heat exchange and forms a low-temperature, low-pressure gaseous refrigerant.

[0059] After the low-temperature, low-pressure gaseous refrigerant flows out of the outdoor heat exchanger, it flows back into the compressor and is compressed again.

[0060] The compressor can be either a single-rotor compressor or a twin-rotor compressor. The specific structure of the compressor is described below.

[0061] like Figure 1 As shown in the overall external structure diagram, the compressor includes a container 1. Container 1 includes a surrounding plate 11, a top plate 12, and a bottom plate 13. The top plate 12 and the bottom plate 13 are spaced apart, and the thickness direction of the top plate 12 is consistent with the thickness direction of the bottom plate 13. The surrounding plate 11 surrounds the arrangement direction of the top plate 12 and the bottom plate 13 and is connected to both the top plate 12 and the bottom plate 13, thereby forming a sealed cavity with the surrounding plate 11, the top plate 12, and the bottom plate 13.

[0062] In some embodiments, such as Figure 2 As shown, the compressor also includes a compression mechanism 2. The compression mechanism 2 is located inside the sealed cavity and at the lower end of the container 1. The compression mechanism 2 includes a cylinder 21 and an eccentric rotor 22, which is disposed inside the cylinder 21 and is capable of eccentric rotation within the cylinder 21.

[0063] The container 1 also has a refrigerant inlet. For example, the refrigerant inlet is located on the enclosure 11. The refrigerant inlet is connected to the cylinder 21. The refrigerant can enter the cylinder 21 through the refrigerant inlet, and then be compressed by the eccentric rotation of the eccentric rotor 22 within the cylinder 21.

[0064] A refrigerant outlet 14 is also formed inside the container 1. The refrigerant outlet 14 can be located on the top plate 12. The compressed refrigerant can enter the sealed cavity of the container 1 and flow out of the compressor through the refrigerant outlet 14.

[0065] In some embodiments, such as Figure 2 As shown, the compressor also includes a motor 3, which is located inside the container 1. Specifically, the motor 3 is located inside the sealed cavity and above the compression mechanism 2. The motor 3 is used to drive the eccentric rotor 22 to rotate.

[0066] Specifically, the motor 3 includes a stator 31 and a rotor 32. The stator 31 is fixedly connected to the container 1, and the rotor 32 is rotatably connected inside the stator 31. The shaft of the rotor 32 is connected to the eccentric rotor 22 of the compression mechanism 2. When the coil of the stator 31 is energized, the stator 31 can drive the rotor 32 to rotate through electromagnetic induction, thereby driving the eccentric rotor 22 to rotate.

[0067] The stator 31 of the motor 3 is fixedly connected to the container 1, thereby fixing the stator 31. Specifically, the stator 31 of the motor 3 has an iron core 33, the container 1 has an inner circumferential surface 15, and the outer circumferential wall of the iron core 33 abuts against the inner circumferential wall of the container 1, thereby fixing the stator 31 of the motor 3 to the container 1. The inner circumferential surface 15 of the container 1 can be the inner circumferential wall of the surrounding plate 11.

[0068] Based on this, in order to avoid the motor 3 affecting the flow of refrigerant, thereby preventing the refrigerant from flowing to the refrigerant outlet 14, such as... Figure 3 As shown, a first medium flow channel 4 is formed between the iron core 33 of the motor 3 and the inner circumferential surface 15 of the container 1. The first medium flow channel 4 connects the cylinder 21 and the refrigerant outlet 14. The refrigerant compressed in the cylinder 21 can flow through the first medium flow channel 4 to the refrigerant outlet 14, and thus flow out of the compressor from the refrigerant outlet 14.

[0069] In some embodiments, such as Figure 4 As shown, the iron core 33 includes a ring-shaped magnetic yoke 331 and nine protrusions 332. The nine protrusions 332 are connected to the outer peripheral wall of the magnetic yoke 331 and are evenly distributed along the circumference of the magnetic yoke 331. The inner peripheral surface 15 surrounds the axis of the magnetic yoke 331.

[0070] All nine protrusions 332 abut against the inner circumferential surface 15 of the container 1 to connect the stator 31 to the container 1, thereby connecting the motor 3 to the container 1. Furthermore, any two adjacent protrusions 332, together with the inner circumferential surface 15 of the container 1 and the outer circumferential wall of the yoke 331, form a first medium flow channel 4.

[0071] Therefore, the nine protrusions 332, together with the inner circumferential surface 15 of the container 1 and the outer circumferential wall of the magnetic yoke 331, form nine first medium flow channels 4, which are evenly distributed along the circumference of the magnetic yoke 331.

[0072] The contact between the iron core 33 of the stator 31 and the inner circumferential surface 15 of the container 1 is usually achieved through a heat-fitting process. That is, when the container 1 and the iron core 33 of the stator 31 are processed separately, the radial dimension of the inner circumferential surface 15 of the container 1 should be smaller than the radial dimension of the outer circumferential surface of the iron core 33. Then, the container 1 is heated to expand, thereby increasing the radial dimension of the inner circumferential surface 15 of the container 1, so that the radial dimension of the inner circumferential surface 15 of the container 1 is greater than the radial dimension of the outer circumferential surface of the iron core 33. Then, the heated and expanded container 1 is fitted over the iron core 33 of the stator 31. Finally, the container 1 is gradually cooled and contracted, thereby causing the inner circumferential surface 15 of the container 1 to contact the outer circumferential wall of the iron core 33 of the stator 31.

[0073] In related technologies, such as Figure 5 As shown, the orthographic projection of the inner circumferential surface 15 of container 1 onto the first plane is a regular nonagon. The first plane is perpendicular to the axis of the magnetic yoke 331. One side of the regular nonagon corresponds to a protrusion 332 of the iron core 33, and the surface of the protrusion 332 away from the magnetic yoke 331 abuts against a portion of the inner circumferential surface 15 corresponding to one side of the regular nonagon.

[0074] In this way, the entire surface of each protrusion 332 of the iron core 33 away from the magnetic yoke 331 will be subjected to compressive stress from the inner circumferential surface 15 of the container 1, resulting in a large area of ​​compression on the iron core 33, which in turn leads to a low magnetic permeability of the iron core 33, increased iron loss of the motor 3, and affects the working efficiency of the motor 3.

[0075] Furthermore, in related technologies, such as Figure 5 As shown, the iron core 33 also includes nine teeth 333. These nine teeth 333 are connected to the inner circumferential wall of the yoke 331 and are evenly distributed along the circumference of the yoke 331. The nine protrusions 332 are also evenly distributed along the circumference of the yoke 331, thus the compressive stress exerted by the inner circumferential surface 15 of the container 1 on the iron core 33 is also evenly distributed along the circumference of the yoke 331, resulting in a tighter connection between the container 1 and the stator 31. However, if a six-pole rotor 32 is used and a three-phase star connection is made on the six poles, the motor 3 will be of eighteen orders. This makes resonance very easy to occur during motor 3 operation.

[0076] Based on this, such as Figure 6As shown, the compressor provided in this application has an inner circumferential surface 15 of container 1 comprising eight side surfaces connected end to end, forming an octahedral structure. That is, the orthographic projection of the inner circumferential surface 15 of container 1 onto the first plane is an octagon.

[0077] In some examples, the octagon is a regular octagon, meaning that all eight sides of the inner circumference 15 are the same. In this case, the clamps between any two adjacent sides of the octagon (such as...) Figure 6 The angle α in the equation is equal to 135°.

[0078] It should be noted that when the octagon is a regular octagon, since there may be errors in the processing of container 1, the orthographic projection of the inner circumferential surface 15 of container 1 on the first plane can be an approximate regular octagon. For example, the error range of the included angle between two adjacent sides is ±2° (that is, the included angle between two adjacent sides is greater than or equal to 133° and less than or equal to 137°) and can be considered as the regular octagon of this application.

[0079] In addition, the octagon may not be a regular octagon, that is, at least two of the eight lateral faces of the inner circumference 15 are different.

[0080] like Figure 7 As shown, the iron core 33 still has nine protrusions 332, and these nine protrusions 332 are evenly arranged along the circumference of the magnetic yoke 331. To facilitate the description of the relationship between the protrusions 332 and the inner circumferential surface 15 after the iron core 33 is connected to the container 1, two of the sides of the inner circumferential surface 15 can be referred to as the first side surface 151 and the second side surface 152, respectively, and one of the nine protrusions 332 of the iron core 33 can be referred to as the first protrusion 3321.

[0081] The surface of the first protrusion 3321 away from the yoke 331 has two first contact areas spaced circumferentially along the yoke 331 (e.g., Figure 7 Regions A1 and A2 in the diagram), one of the first contact regions (e.g. Figure 7 The A1 area in the middle) abuts against the first side 151, and another first contact area (such as Figure 7 The A2 region in the middle) abuts against the second side surface 152. Of the other eight protrusions 332, each protrusion 332 has a second contact area on its surface away from the magnetic yoke 331 (e.g., region A2 in the middle). Figure 7 Region B1 in the diagram shows the second contact area of ​​one of the protrusions, which abuts against a side of the inner circumferential surface 15.

[0082] In some examples, the area of ​​the second contact region is smaller than the area of ​​the surface of the corresponding protrusion 332 on the side away from the yoke 331.

[0083] In some examples, the first side surface 151 and the second side surface 152 of the inner circumferential surface 15 can be two non-adjacent sides of the inner circumferential surface 15. For example, there may be an additional side surface between the first side surface 151 and the second side surface 152. In this case, the side surface located between the first side surface 151 and the second side surface 152 does not contact the iron core 33. Of the other eight protrusions 332, one protrusion 332 may correspond to one side surface of the inner circumferential surface 15, or two protrusions 332 may correspond to one side surface of the inner circumferential surface 15.

[0084] In other examples, the first side surface 151 and the second side surface 152 of the inner circumferential surface 15 can be two adjacent side surfaces of the inner circumferential surface 15. In this case, the first protrusion 3321 is located at one of the corners of the octagon (i.e., the included angle formed by the first side surface 151 and the second side surface 152). Furthermore, of the other eight protrusions 332, the portion of the surface of each protrusion 332 away from the yoke 331 abuts against one side surface of the inner circumferential surface 15. Specifically, of the other eight protrusions 332, one protrusion 332 can correspond to one side surface of the inner circumferential surface 15, or two protrusions 332 can correspond to one side surface of the inner circumferential surface 15.

[0085] Here, we will take the first side surface 151 and the second side surface 152 of the inner circumferential surface 15 as two adjacent sides of the inner circumferential surface 15 for illustration.

[0086] It should be noted that in this application, the contact between the iron core 33 of the stator 31 and the inner circumferential surface 15 of the container 1 can also be achieved through a heat-shrinking process. Figure 7 After the container 1 is heated and expanded, the iron core 33 is installed inside the container 1. At this time, the distance between the protrusion 332 and the inner circumferential surface 15 of the container 1 is relatively large. Figure 8 After the container 1 has cooled and shrunk, the iron core 33 is in the assembled state with the container 1. At this time, part of the protrusion 332 abuts against the inner circumferential surface 15 of the container 1 to realize the connection between the iron core 33 and the container 1. The other part of the protrusion 332 has a gap with the inner circumferential surface 15 of the container 1.

[0087] For ease of description, the surface of the protrusion 332 away from the magnetic yoke 331 will be named the first surface 332A.

[0088] With the above configuration, since the orthographic projection of the inner circumferential surface 15 onto the first plane is octagonal, and the iron core 33 has nine protrusions 332, which are evenly distributed along the circumference of the yoke 331, the number of side surfaces of the inner circumferential surface 15 of the container 1 is not equal to the number of protrusions 332 of the iron core 33. Furthermore, the first protrusion 3321 has two positions (i.e., two first contact areas) that abut against the inner circumferential surface 15 of the container 1, while the remaining positions, such as the position between the two first contact areas, do not abut against the inner circumferential surface 15 of the container 1. In other words, the first protrusion 3321 only partially abuts against the inner circumferential surface 15 of the container 1. Similarly, of the other eight protrusions 332, each protrusion 332 only partially (i.e., the second contact area) abuts against one side surface of the inner circumferential surface 15, while the portion outside the second contact area does not abut against the inner circumferential surface 15 of the container 1.

[0089] In this way, the compressive stress exerted by the inner circumferential surface 15 of the container 1 on the iron core 33 will not be evenly distributed on the circumference of the iron core 33. When the motor 3 uses a rotor 32 with six poles and a three-phase star connection is made on the six poles, the motor 3 will not resonate, thereby improving the stability of the motor 3 operation.

[0090] Furthermore, the uneven distribution of compressive stress on the iron core 33 caused by the inner circumferential surface 15 of the container 1 reduces the area of ​​the iron core 33 subjected to compressive stress from the inner circumferential surface 15 of the container 1, thus decreasing the contact area between the iron core 33 and the inner circumferential surface 15 of the container 1. Consequently, after the iron core 33 is installed into the container 1 via a heat-shrinking process, the area of ​​the iron core 33 subjected to compressive stress from the inner circumferential surface 15 of the container 1 is reduced, thereby increasing the magnetic permeability of the iron core 33, reducing the iron loss of the motor 3, and ultimately improving the working efficiency of the motor 3. Specifically, the other eight protrusions 332 among the nine protrusions 332 can be named sequentially as the second protrusion 3322, the third protrusion 3323, the fourth protrusion 3324, the fifth protrusion 3325, the sixth protrusion 3326, the seventh protrusion 3327, the eighth protrusion 3328, and the ninth protrusion 3329.

[0091] like Figure 9 As shown, along the circumferential direction of the yoke 331, only the two ends of the first surface 332A of the first protrusion 3321 abut against the inner circumferential surface 15 of the container 1, as... Figure 9 The A1 position (i.e., one first contact area) and the A2 position (i.e., another first contact area) are shown in the diagram; however, the middle portion of the first surface 332A of the first protrusion 3321 does not contact the inner circumferential surface 15 of the container 1, as shown in the diagram. Figure 9 Therefore, the A3 position of the first protrusion 3321 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0092] like Figure 10As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the second protrusion 3322 near one end of the first protrusion 3321 abuts against the inner circumferential surface 15 of the container 1, such as... Figure 10 The location of B1 (i.e., the second contact area of ​​the second protrusion 3322); while the portion of the first surface 332A of the second protrusion 3322 away from the first protrusion 3321 does not contact the inner circumferential surface 15 of the container 1, such as Figure 10 Therefore, the B2 position of the second protrusion 3322 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0093] like Figure 11 As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the third protrusion 3323 near the end of the second protrusion 3322 abuts against the inner circumferential surface 15 of the container 1, as... Figure 11 The position of C1 (i.e., the second contact area of ​​the third protrusion 3323); while the portion of the first surface 332A of the third protrusion 3323 away from the second protrusion 3322 does not contact the inner circumferential surface 15 of the container 1, such as Figure 11 Therefore, the C2 position of the third protrusion 3323 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0094] like Figure 12 As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the fourth protrusion 3324, near the end of the third protrusion 3323, abuts against the inner circumferential surface 15 of the container 1. Figure 12 The position of D1 (i.e., the second contact area of ​​the fourth protrusion 3324); while the portion of the first surface 332A of the fourth protrusion 3324 away from the third protrusion 3323 does not contact the inner circumferential surface 15 of the container 1, such as Figure 12 Therefore, the D2 position of the fourth protrusion 3324 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0095] like Figure 13 As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the fifth protrusion 3325, near the end of the fourth protrusion 3324, abuts against the inner circumferential surface 15 of the container 1. Figure 13 The position of E1 (i.e., the second contact area of ​​the fifth protrusion 3325); while the portion of the first surface 332A of the fifth protrusion 3325 away from the fourth protrusion 3324 does not contact the inner circumferential surface 15 of the container 1, such as Figure 13 Therefore, the E2 position of the fifth protrusion 3325 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0096] like Figure 14As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the sixth protrusion 3326, near the end of the fifth protrusion 3325, abuts against the inner circumferential surface 15 of the container 1. Figure 14 The position of F1 (i.e., the second contact area of ​​the sixth protrusion 3326); while the portion of the first surface 332A of the sixth protrusion 3326 away from the fifth protrusion 3325 does not contact the inner circumferential surface 15 of the container 1, such as Figure 14 Therefore, the F2 position of the sixth protrusion 3326 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0097] like Figure 15 As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the seventh protrusion 3327, located away from the sixth protrusion 3326, abuts against the inner circumferential surface 15 of the container 1. Figure 15 The location of G1 (i.e., the second contact area of ​​the seventh protrusion 3327); while the portion of the first surface 332A of the seventh protrusion 3327 near the end of the sixth protrusion 3326 does not contact the inner circumferential surface 15 of the container 1, such as Figure 15 Therefore, the G2 position of the seventh protrusion 3327 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0098] like Figure 16 As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the eighth protrusion 3328, located away from the seventh protrusion 3327, abuts against the inner circumferential surface 15 of the container 1. Figure 16 The location of H1 (i.e., the second contact area of ​​the eighth protrusion 3328); while the portion of the first surface 332A of the eighth protrusion 3328 near the end of the seventh protrusion 3327 does not contact the inner circumferential surface 15 of the container 1, such as Figure 16 Therefore, the H2 position of the eighth protrusion 3328 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0099] like Figure 17 As shown, along the circumferential direction of the yoke 331, only a portion of the first surface 332A of the ninth protrusion 3329, located away from the eighth protrusion 3328, abuts against the inner circumferential surface 15 of the container 1. Figure 17 The position of K1 (i.e., the second contact area of ​​the ninth protrusion 3329); while the portion of the first surface 332A of the ninth protrusion 3329 near one end of the eighth protrusion 3328 does not contact the inner circumferential surface 15 of the container 1, such as Figure 17 Therefore, the K2 position of the ninth protrusion 3329 will not be subjected to compressive stress on the inner circumferential surface 15 of the container 1.

[0100] In summary, the first surfaces 332A of the nine protrusions 332 of the iron core 33 only partially abut against the inner circumferential surface 15 of the container 1, and the abutment positions of the first surfaces 332A of each protrusion 332 against the inner circumferential surface 15 of the container 1 are also different. Therefore, the area of ​​compressive stress on the inner circumferential surface 15 of the container 1 is relatively small, and the compressive stress on the iron core 33 is also uneven along the circumferential direction of the yoke 331.

[0101] In some embodiments, such as Figure 18 As shown, the angle formed by the first side 151 and the second side 152 is the first angle β, that is, one of the eight angles of the octagon is the first angle β, and the first protrusion 3321 is located at the position of the first angle β of the octagon.

[0102] The orthographic projection of the side surface of the protrusion 332 away from the magnetic yoke 331 onto the first plane is the first edge line 332B, and the midpoint of the first edge line 332B of the first protrusion 3321 (e.g. Figure 18 Point Q in the equation lies on the angle bisector of the first angle β (e.g., ...). Figure 18 On the dashed line R in the middle.

[0103] In other words, along the circumference of the magnetic yoke 331, one end of the first protrusion 3321 abuts against the first side surface 151, and the other end of the first protrusion 3321 abuts against the second side surface 152. Furthermore, the area of ​​the first protrusion 3321 abutting against the first side surface 151 is the same as the area of ​​the first protrusion 3321 abutting against the second side surface 152.

[0104] In this way, since the number of side surfaces in the inner circumferential surface 15 of container 1 is not equal to the number of protrusions 332 of iron core 33, the contact area between the first surface 332A of the other protrusions 332 (excluding the first protrusion 3321) and the inner circumferential surface 15 of container 1 is relatively small, thereby further reducing the contact area between iron core 33 and inner circumferential surface 15 of container 1, so as to improve the working efficiency of motor 3.

[0105] It should be noted that when the iron core 33 and the container 1 are connected by a heat-shrinking process, there may be errors. Therefore, if the midpoint of the first edge line 332B of the first protrusion 3321 is close to the angle bisector of the first angle β, it can be considered that the midpoint of the first edge line 332B of the first protrusion 3321 is located on the angle bisector of the first angle β. For example, if the angle between the line connecting the midpoint of the first edge line 332B of the first protrusion 3321 and the vertex of the first angle β and the angle bisector of the first angle β is greater than or equal to 0° and less than or equal to 2°, it can be considered that the midpoint of the first edge line 332B of the first protrusion 3321 is located on the angle bisector of the first angle β.

[0106] Furthermore, the midpoint of the first edge 332B of the first protrusion 3321 may not be on the angle bisector of the first angle β. This application does not impose specific limitations on this.

[0107] In some embodiments, the first edge line 332B is an arc. For example, the first edge line 332B of each protrusion 332 is an arc. The projection of the first magnetic yoke 331 onto the first plane is a first ring, and the center of the first edge line 332B coincides with the center of the first ring.

[0108] In other words, the surface of the protrusion 332 away from the yoke 331 is an arc surface. As a result, when the surface of the protrusion 332 away from the yoke 331 comes into contact with the inner circumferential surface 15 of the container 1, the contact area will be smaller, thereby reducing the area on which the iron core 33 is subjected to compressive stress by the inner circumferential surface 15 of the container 1, and thus improving the working efficiency of the motor 3.

[0109] It should be noted that after the iron core 33 and container 1 are assembled using a heat-shrink process, the inner circumferential surface 15 of container 1 and the surface of the protrusion 332 away from the magnetic yoke 331 will undergo certain deformation. Therefore, the statement that the first edge line 332B is an arc and that the center of the first edge line 332B coincides with the center of the first ring means that when the iron core 33 and container 1 are not assembled, the first edge line 332B of the protrusion 332 is an arc and the center of the first edge line 332B coincides with the center of the first ring. The term "octagonal" refers to the fact that when the iron core 33 and container 1 are not assembled, the orthographic projection of the inner circumferential surface 15 of container 1 onto the first plane is an octagon.

[0110] Furthermore, the first edge 332B can also be a straight line. This application does not impose specific limitations on this.

[0111] In some embodiments, such as Figure 19 As shown, the iron core 33 also includes nine teeth 333. The nine teeth 333 are connected to the inner peripheral wall of the magnetic yoke 331, and the nine teeth 333 are evenly distributed along the circumference of the magnetic yoke 331. The teeth 333 are used to wind the coil of the stator 31.

[0112] Any two adjacent teeth 333 and the inner peripheral wall of the magnetic yoke 331 define a tooth groove 34, thereby allowing nine teeth 333 and the inner peripheral wall of the magnetic yoke 331 to define nine tooth grooves 34. The nine protrusions 332 correspond one-to-one with the nine tooth grooves 34.

[0113] In this way, the position corresponding to any tooth groove 34 on the iron core 33 can be reinforced by a protrusion 332, thereby improving the structural strength of the iron core 33 and thus improving the structural strength of the motor 3, so as to make the operation of the motor 3 more stable.

[0114] In some embodiments, such as Figure 19 As shown, the portion of the inner peripheral wall of the yoke 331 located between two adjacent teeth 333 is the first inner peripheral wall 331A. That is, the nine teeth 333 divide the inner peripheral wall of the yoke 331 into nine first inner peripheral wall surfaces 331A, and one first inner peripheral wall surface 331A connects between two adjacent teeth 333.

[0115] The orthographic projection of the first inner peripheral wall 331A onto the first plane is the second sideline 331B; the length of the first sideline 332B (as shown in the figure) Figure 19 The length L1 in the middle is less than or equal to the length of the second side line 331B (e.g., Figure 19 (Length L2 in the middle).

[0116] In other words, along the circumference of the yoke 331, the size of the protrusion 332 is smaller than or equal to the size of the groove 34 near the bottom wall of the yoke 331. This allows the protrusion 332 to enhance the structural strength of the core 33, and also allows for a larger circumferential spacing between adjacent protrusions 332 on the yoke 331. This ensures a larger circumferential dimension of the first medium flow channel 4 within the yoke 331, allowing for smoother flow of the refrigerant within the first medium flow channel 4.

[0117] In some embodiments, such as Figure 19 As shown, the portion of the outer peripheral wall of the yoke 331 located between two adjacent protrusions 332 is the first outer peripheral wall 331C. That is, the nine protrusions 332 divide the outer peripheral wall of the yoke 331 into nine first outer peripheral wall surfaces 331C, and one first outer peripheral wall surface 331C connects between two adjacent protrusions 332.

[0118] The orthographic projection of the first outer peripheral wall 331C onto the first plane is the third edge line 331D. For example... Figure 20 As shown, the third edge line 331D includes a first line segment 331E, a second line segment 331F, and a third line segment 331G connected in sequence. The second line segment 331F is an arc segment, and the concave side of the second line segment 331F faces the inner peripheral surface 15. For example, the second line segment 331F is an arc segment.

[0119] In some examples, the second line segment 331F is directly opposite its corresponding tooth 333.

[0120] Compared to the third side line 331D being a straight line, by setting the second line segment 331F as an arc segment, the radial dimension of the first medium flow channel 4 in the magnetic yoke 331 can be increased, thereby further improving the smoothness of the refrigerant flow in the first medium flow channel 4.

[0121] Furthermore, after the stator coil 31 is wound around the tooth 333, the magnetic flux generated by the coil after energization will be distributed radially along the yoke 331 on the tooth 333, and circumferentially along the yoke 331, as shown below. Figure 20 The distribution direction indicated by the middle arrow.

[0122] At this time, by setting the second line segment 331F as an arc segment, and with the concave side of the arc segment facing the inner circumferential surface 15, the magnetic flux distribution in the part of the tooth 333 (the part distributed radially along the yoke 331) can transition more smoothly to the part distributed on the yoke 331 (the part distributed circumferentially along the yoke 331), so that the magnetic flux is more evenly distributed in the iron core 33, thereby improving the permeability of the iron core 33.

[0123] In some examples, the first line segment 331E can be a straight line segment.

[0124] In other examples, such as Figure 20 As shown, the first line segment 331E can also be an arc segment. In this case, the concave side of the first line segment 331E can face the magnetic yoke 331, and the first line segment 331E is tangent to the second line segment 331F.

[0125] In this way, the connection between the first segment 331E and the second segment 331F is smooth, which can further make the magnetic flux distribution in the part of the tooth 333 (the part distributed radially along the yoke 331) transition more smoothly to the part distributed on the yoke 331 (the part distributed circumferentially along the yoke 331), thereby further improving the permeability of the iron core 33.

[0126] In some examples, the third line segment 331G can be a straight line segment.

[0127] In other examples, such as Figure 20 As shown, the third line segment 331G can also be an arc segment. In this case, the concave side of the third line segment 331G can face the magnetic yoke 331, and the third line segment 331G is tangent to the second line segment 331F.

[0128] In this way, the connection between the third segment 331G and the second segment 331F is smooth, which can further make the magnetic flux distribution in the part of the tooth 333 (the part distributed radially along the yoke 331) transition more smoothly to the part distributed on the yoke 331 (the part distributed circumferentially along the yoke 331), thereby further improving the permeability of the iron core 33.

[0129] In some embodiments, to facilitate the smooth flow of the compressed refrigerant from cylinder 21 to the refrigerant outlet 14 of container 1, such as... Figure 21As shown, a second medium flow channel 332C is provided on the protrusion 332. The second medium flow channel 332C passes through the protrusion 332 along the axial direction of the magnetic yoke 331.

[0130] It should be noted that a second medium flow channel 332C may be formed on some of the protrusions 332. For example, the second medium flow channel 332C may be formed on the first protrusion 3321, the second protrusion 3322, and the third protrusion 3323, while the second medium flow channel 332C may not be formed on the fourth protrusion 3324, the fifth protrusion 3325, the sixth protrusion 3326, the seventh protrusion 3327, the eighth protrusion 3328, and the ninth protrusion 3329.

[0131] Alternatively, a second medium flow channel 332C may be formed on each of the protrusions 332. That is, a second medium flow channel 332C may be formed on the first protrusion 3321, the second protrusion 3322, the third protrusion 3323, the fourth protrusion 3324, the fifth protrusion 3325, the sixth protrusion 3326, the seventh protrusion 3327, the eighth protrusion 3328 and the ninth protrusion 3329.

[0132] By opening a second medium flow channel 332C on the protrusion 332, the refrigerant flowing out of the cylinder 21 can flow from the first medium flow channel 4 to the refrigerant outlet 14, and also from the second medium flow channel 332C to the refrigerant outlet 14, thereby increasing the channels through which the refrigerant can flow, so that the refrigerant can flow more smoothly to the refrigerant outlet 14.

[0133] In some embodiments, the wall thickness of container 1 is greater than or equal to 4.5 mm and less than or equal to 5.5 mm. For example, the wall thickness of container 1 can be 4.5 mm, 4.8 mm, 5 mm, 5.2 mm, 5.5 mm, etc.

[0134] By setting the wall thickness of container 1 within the above-mentioned range, the structural strength of container 1 can be guaranteed, thereby improving the support strength of container 1 for motor 3.

[0135] In some embodiments, the maximum radial dimension of the core 33 is greater than or equal to 159 mm and less than or equal to 175 mm. For example, the maximum radial dimension of the core 33 can be 159 mm, 160 mm, 161 mm, 162 mm, 163 mm, 164 mm, 165 mm, etc.

[0136] It should be noted that the maximum radial dimension of the iron core 33 refers to the diameter of the first side line 332B when the first side line 332B is an arc.

[0137] By setting the maximum radial dimension of the iron core 33 to the above-mentioned dimension, the iron core 33 can be made more stable after being connected to the container 1, and the installation of components such as the coil of the stator 31 and the rotor 32 can be facilitated.

[0138] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple instances. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0139] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

[0140] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A compressor, characterized in that, The compressor includes a container with an inner circumferential surface and a motor disposed within the container. The motor includes a stator having an iron core. The iron core includes: The magnetic yoke is in the form of a ring, and the inner circumferential surface surrounds the axis of the magnetic yoke. Nine protrusions are connected to the outer peripheral wall of the magnetic yoke and are evenly distributed along the circumference of the magnetic yoke. The inner circumferential surface includes eight side surfaces connected end to end; two of the side surfaces of the inner circumferential surface are the first side surface and the second side surface, respectively. One of the nine protrusions is a first protrusion. The surface of the first protrusion away from the magnetic yoke has two first contact areas spaced circumferentially along the magnetic yoke. One of the first contact areas abuts against the first side surface, and the other first contact area abuts against the second side surface. Of the other eight protrusions, each of the protrusions has a second contact area on the side surface away from the yoke, and one of the second contact areas abuts against one of the eight side surfaces of the inner peripheral surface.

2. The compressor according to claim 1, characterized in that, The first side and the second side are adjacent, and the angle formed by the first side and the second side is the first angle. The orthographic projection of the side surface of the protrusion away from the magnetic yoke onto the first plane is the first side line, and the midpoint of the first side line of the first protrusion is located on the angle bisector of the first angle.

3. The compressor according to claim 2, characterized in that, The first edge line is an arc, and the orthographic projection of the magnetic yoke on the first plane is a first ring, with the center of the first edge line coinciding with the center of the first ring.

4. The compressor according to claim 2 or 3, characterized in that, The iron core also includes: Nine teeth are connected to the inner peripheral wall of the magnetic yoke, and the nine teeth are evenly distributed along the circumference of the magnetic yoke. Any two adjacent teeth and the inner peripheral wall of the yoke define a tooth groove, and the nine protrusions correspond one-to-one with the nine tooth grooves.

5. The compressor according to claim 4, characterized in that, The portion of the inner peripheral wall of the magnetic yoke between two adjacent teeth is the first inner peripheral wall, and the orthographic projection of the first inner peripheral wall onto the first plane is the second edge line. The length of the first sideline is less than or equal to the length of the second sideline.

6. The compressor according to any one of claims 2-3, characterized in that, The portion of the outer peripheral wall of the magnetic yoke between two adjacent protrusions is the first outer peripheral wall, and the orthographic projection of the first outer peripheral wall onto the first plane is the third side line. The third edge line includes a first line segment, a second line segment, and a third line segment connected in sequence. The second line segment is an arc segment, and the concave side of the second line segment faces the inner circumferential surface.

7. The compressor according to claim 6, characterized in that, The first line segment is also an arc segment, the concave side of the first line segment faces the magnetic yoke, and the first line segment is tangent to the second line segment; And / or, the third line segment is also an arc segment, the concave side of the third line segment faces the magnetic yoke, and the third line segment is tangent to the second line segment.

8. The compressor according to any one of claims 1-3, characterized in that, A second medium flow channel is provided on the protrusion, and the second medium flow channel passes through the protrusion along the axial direction of the magnetic yoke.

9. The compressor according to any one of claims 1-3, characterized in that, The container has a wall thickness greater than or equal to 4.5 mm and less than or equal to 5.5 mm; And / or, the maximum radial dimension of the iron core is greater than or equal to 159 mm and less than or equal to 175 mm.

10. A temperature regulating device, characterized in that, Includes the compressor as described in any one of claims 1-9.

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