Rotor structure, compressor, electrical equipment and vehicle

Abstract

The utility model provides a rotor structure, compressor, electrical equipment and vehicle wherein the rotor structure comprises: a rotor main body, the rotor main body comprises a shaft hole and a plurality of through-flow holes, the shaft hole penetrates through the rotor main body along the axial direction of the rotor main body, the through-flow holes penetrate through the rotor main body along the axial direction of the rotor main body, and the plurality of through-flow holes are arranged around the shaft hole; wherein the through-flow hole comprises a fan ring hole, a first hole and a second hole which are communicated, the inner arc of the fan ring hole faces the shaft hole, the first hole and the second hole are formed in the two sides of the fan ring hole respectively in the circumferential direction of the rotor body, the side, away from the fan ring hole, of the first hole is of a bent structure, and the side, away from the fan ring hole, of the second hole is of a bent structure.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a rotor structure, a compressor, an electrical device and a vehicle. Background Art

[0002] In the related art, in order to improve performance and reliability, it is necessary to design a suitable rotor for the compressor, and the flow holes on the rotor have a direct impact on the pressure pulsation of the compressor. Pressure pulsation refers to the pressure fluctuation phenomenon generated when the fluid flows. Utility Model Content

[0003] The utility model aims at at least solving or improving the technical problem of large pressure pulsation of the compressor in the prior art.

[0004] To this end, a first aspect of the utility model proposes a rotor structure.

[0005] A second aspect of the utility model provides a compressor.

[0006] A third aspect of the utility model provides an electrical device.

[0007] A fourth aspect of the present invention provides a vehicle.

[0008] In view of this, according to the first aspect of the utility model, the utility model proposes a rotor structure, including: a rotor body, the rotor body including an axial hole and a plurality of flow holes, the axial hole penetrates the rotor body along the axial direction of the rotor body, the flow holes penetrate the rotor body along the axial direction of the rotor body, and the plurality of flow holes are arranged around the axial hole; wherein, the flow holes include a connected fan ring hole, a first hole and a second hole, the inner arc of the fan ring hole faces the axial hole, and along the circumference of the rotor body, the first hole and the second hole are respectively arranged on both sides of the fan ring hole, the side of the first hole away from the fan ring hole is a curved structure, and the side of the second hole away from the fan ring hole is a curved structure.

[0009] The rotor structure proposed in the utility model includes a rotor body, which includes an axial hole and a plurality of flow holes. The axial hole penetrates the rotor body along the axial direction of the rotor body, wherein the axial hole can be connected to a piston, thereby driving the compression component of the compressor to operate, and the flow holes penetrate the rotor body along the axial direction of the rotor body. When the compressor is working, part of the refrigerant can enter the upper chamber of the compressor through the flow holes, thereby reducing the pressure pulsation of the compressor.

[0010] Among them, a plurality of flow holes are arranged around the shaft hole, so that the rotor structure is more balanced and the stability of the compressor is improved.

[0011] Furthermore, a through hole has three parts, namely a fan ring hole, and a first hole and a second hole arranged on both sides of the fan ring hole. The fan ring hole, the first hole and the second hole all penetrate the rotor body along the axial direction of the rotor body. The inner arc of the fan ring hole faces the axial hole. Along the circumference of the rotor body, the first hole and the second hole are respectively arranged on both sides of the fan ring hole. The side of the first hole away from the fan ring hole is a curved structure, and the side of the second hole away from the fan ring hole is a curved structure, which is beneficial to increase the area of ​​the through hole while ensuring the structural strength of the rotor.

[0012] Optionally, since the inner hole of the fan ring hole faces the axial hole, the curvature of the flow hole conforms to the curvature of the rotor body, which is beneficial to increase the area of ​​the flow hole, and the adjacent flow holes are the first hole and the second hole opposite to each other, and the side of the first hole away from the fan ring hole is a curved structure, and the side of the second hole away from the fan ring hole is a curved structure, so there is more material between adjacent flow holes, thereby ensuring the strength of the rotor body.

[0013] The rotor structure proposed in the utility model reduces the pressure pulsation of the compressor by arranging a plurality of flow holes, and the cooling effect of the rotor structure can be improved by the passage of the refrigerant through the flow holes.

[0014] In addition, the rotor structure in the above technical solution provided by the utility model may also have the following additional technical features:

[0015] In some embodiments, optionally, the ratio of the total area of ​​the end surface of the rotor body to the area of ​​the through hole is greater than or equal to 48 and less than or equal to 54.

[0016] In this embodiment, the ratio of the total area of ​​the end face of the rotor body to the area of ​​the flow hole is greater than or equal to 48 and less than or equal to 54, thereby ensuring the strength of the rotor body while increasing the area of ​​the flow hole, thereby ensuring the effect of reducing the pressure pulsation of the compressor.

[0017] In some embodiments, optionally, the minimum distance between adjacent through-holes is greater than or equal to 0.5 mm and less than or equal to 2.5 mm.

[0018] In this embodiment, the minimum distance between adjacent through-holes is greater than or equal to 0.5 mm and less than or equal to 2.5 mm, thereby ensuring the strength of the rotor body while increasing the number of through-holes to ensure the effect of reducing compressor pressure pulsation.

[0019] In some embodiments, optionally, a ratio of a diameter of an outer arc of the fan ring hole to a diameter of an inner arc of the fan ring hole is in a range greater than or equal to 1.5 and less than or equal to 1.7.

[0020] In this embodiment, the ratio of the diameter of the outer arc of the fan ring hole to the diameter of the inner arc of the fan ring hole is greater than or equal to 1.5 and less than or equal to 1.7, thereby ensuring the radial width of the flow hole along the rotor body, ensuring that the flow hole has a certain area, and ensuring that there is a certain distance between the flow hole and the shaft hole, thereby improving the strength of the rotor body.

[0021] In some embodiments, optionally, the ratio of the diameter of the rotor body to the diameter of the outer arc of the sector ring hole is greater than or equal to 0.5 and less than or equal to 0.61.

[0022] In this embodiment, the ratio of the diameter of the rotor body to the diameter of the outer arc of the fan ring hole is greater than or equal to 0.5 and less than or equal to 0.61, ensuring that the flow hole has a certain area and that there is a certain distance between the flow hole and the outer periphery of the rotor body to make room for other structures.

[0023] In some embodiments, optionally, the rotor body includes a plurality of fastening holes and a plurality of magnetic member slots, the fastening holes extend axially along the rotor body, the magnetic member slots extend axially along the rotor body, the plurality of fastening holes are arranged around the plurality of flow holes, and the plurality of magnetic member slots are arranged around the plurality of flow holes.

[0024] In this embodiment, the rotor body includes a plurality of fastening holes and a plurality of magnetic member slots, the fastening holes are used to fasten the rotor body, the magnetic member slots are used to insert the magnetic members, the plurality of fastening holes extend axially along the rotor body, the magnetic member slots extend axially along the rotor body, and the plurality of fastening holes are arranged around the plurality of flow holes, the plurality of magnetic member slots are arranged around the plurality of flow holes, thereby reducing the influence of the fastening holes and the magnetic member slots on the flow holes, and facilitating increasing the area of ​​the flow holes.

[0025] In some embodiments, the rotor body is optionally formed by stacking a plurality of rotor sheets.

[0026] In this embodiment, the rotor body is formed by stacking a plurality of rotor sheets, thereby reducing the production cost of the rotor structure.

[0027] According to a second aspect of the utility model, the utility model provides a compressor, comprising: a rotor structure as provided in the embodiment of the first aspect.

[0028] The compressor proposed in the present invention includes the rotor structure proposed in the first aspect embodiment, and therefore has all the beneficial effects of the rotor structure proposed in the first aspect embodiment, which will not be described one by one here.

[0029] According to a third aspect of the utility model, the utility model provides an electrical device, comprising: a rotor structure as provided in the embodiment of the first aspect; or a compressor as provided in the embodiment of the second aspect.

[0030] The electrical equipment proposed in the utility model includes the rotor structure proposed in the first embodiment or the compressor proposed in the second embodiment, and therefore has all the beneficial effects of the rotor structure proposed in the first embodiment or the compressor proposed in the second embodiment, which will not be stated one by one here.

[0031] According to a fourth aspect of the utility model, the utility model provides a vehicle, comprising: a rotor structure as provided in the embodiment of the first aspect; or a compressor as provided in the embodiment of the second aspect.

[0032] The vehicle proposed in the utility model includes the rotor structure proposed in the first embodiment or the compressor proposed in the second embodiment, and therefore has all the beneficial effects of the rotor structure proposed in the first embodiment or the compressor proposed in the second embodiment, which will not be stated one by one here.

[0033] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 A schematic structural diagram of a rotor structure provided by an embodiment of the utility model is shown;

[0036] Figure 2 A schematic structural diagram of a rotor structure provided by an embodiment of the utility model is shown;

[0037] Figure 3 A schematic structural diagram of a rotor structure provided by an embodiment of the utility model is shown;

[0038] Figure 4 A schematic structural diagram of a rotor structure provided by an embodiment of the utility model is shown;

[0039] Figure 5 A schematic structural diagram of a rotor structure provided by an embodiment of the utility model is shown;

[0040] Figure 6 A cross-sectional view of a compressor provided by one embodiment of the utility model is shown;

[0041] Figure 7 A graph showing the vibration frequencies of a compressor provided by an embodiment of the present invention and a compressor in related art.

[0042] in, Figures 1 to 6The corresponding relationship between the reference numerals and the component names is as follows:

[0043] 100 rotor structure, 110 rotor body, 112 shaft hole, 114 flow hole, 116 fan ring hole, 118 first hole, 120 second hole, 122 fastening hole, 124 magnetic member slot, 200 compressor, 210 housing, 220 first cover body, 230 second cover body, 240 stator structure, 250 muffler, 260 first bearing, 270 second bearing, 280 cylinder, 290 piston, 300 reservoir. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0046] Refer to the following Figures 1 to 7 The rotor structure 100, the compressor 200, the electrical equipment and the vehicle provided according to some embodiments of the present invention are described.

[0047] like Figures 1 to 4 As shown, according to the first aspect of the utility model, the utility model provides a rotor structure 100, the rotor structure 100 includes a rotor body 110, and the rotor body 110 is provided with an axial hole 112 and a flow hole 114, the axial hole 112 and the flow hole 114 pass through the entire rotor body 110 along the axial direction of the rotor body 110, the axial hole 112 is used to install the piston 290, and then when the rotor structure 100 rotates, it can drive the piston 290 to rotate, thereby cooperating with the cylinder 280 to achieve compression of the refrigerant, and the rotor body 110 has a plurality of flow holes 114, and the plurality of flow holes 114 are arranged around the axial hole 112, and the axial hole 112 is roughly arranged at the center position of the axial hole 112, therefore, the plurality of flow holes 114 are arranged around the axial hole 112.

[0048] Among them, the flow hole 114 includes a fan ring hole 116, a first hole 118 and a second hole 120. The fan ring hole 116, the first hole 118 and the second hole 120 are arranged along the circumference of the rotor body 110. The fan ring hole 116, the first hole 118 and the second hole 120 are connected. The inner arc of the fan ring hole 116 faces the shaft hole 112. Along the circumference of the rotor body 110, the first hole 118 and the second hole 120 are respectively arranged on both sides of the fan ring hole 116. The side of the first hole 118 away from the fan ring hole 116 is a curved structure, and the side of the second hole 120 away from the fan ring hole 116 is a curved structure.

[0049] The rotor structure 100 provided by the utility model includes a rotor body 110, and the rotor body 110 includes an axial hole 112 and a plurality of flow holes 114. The axial hole 112 penetrates the rotor body 110 along the axial direction of the rotor body 110, wherein the axial hole 112 can be connected to the piston 290, thereby driving the compression component of the compressor 200 to operate, and the flow holes 114 penetrate the rotor body 110 along the axial direction of the rotor body 110, and thus when the compressor 200 is working, part of the refrigerant can enter the upper cavity of the compressor 200 through the flow holes 114, thereby reducing the pressure pulsation of the compressor 200.

[0050] Among them, a plurality of flow holes 114 are arranged around the shaft hole 112 , so as to make the rotor structure 100 more balanced, improve the stability of the compressor 200 , and facilitate the heat dissipation of the rotor structure 100 .

[0051] Furthermore, a through hole 114 has three parts, namely a fan ring hole 116, and a first hole 118 and a second hole 120 arranged on both sides of the fan ring hole 116. The fan ring hole 116, the first hole 118 and the second hole 120 all penetrate the rotor body 110 along the axial direction of the rotor body 110. The inner arc of the fan ring hole 116 faces the axial hole 112. Along the circumference of the rotor body 110, the first hole 118 and the second hole 120 are respectively arranged on both sides of the fan ring hole 116. The side of the first hole 118 away from the fan ring hole 116 is a curved structure, and the side of the second hole 120 away from the fan ring hole 116 is a curved structure, which is beneficial to increase the area of ​​the through hole 114 while ensuring the strength of the rotor structure 100.

[0052] Optionally, since the inner hole of the fan ring hole 116 faces the shaft hole 112, the curvature of the flow hole 114 conforms to the curvature of the rotor body 110, which is beneficial to increase the area of ​​the flow hole 114, and the adjacent flow holes 114 are opposite to the first hole 118 and the second hole 120, and the side of the first hole 118 away from the fan ring hole 116 is a curved structure, and the side of the second hole 120 away from the fan ring hole 116 is a curved structure, so there is more material between adjacent flow holes 114, thereby ensuring the strength of the rotor body 110.

[0053] The rotor structure 100 provided by the present invention reduces the pressure pulsation of the compressor 200 by providing a plurality of flow holes 114 , and the cooling effect of the rotor structure 100 can be improved by the flow holes 114 passing through the refrigerant.

[0054] Optionally, the cross section of the first hole 118 may be semicircular, the cross section of the second hole 120 may be semicircular, and the cross section of the sector ring hole 116 may be sector ring-shaped.

[0055] The number of the through holes 114 may be 2, 3, 4, 5, 6, 7, 8 or 9, etc.

[0056] Optionally, a plurality of through holes 114 are evenly arranged around the shaft hole 112 .

[0057] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the ratio of the total area S1 of the end surface of the rotor body 110 to the area S2 of the through hole 114 is greater than or equal to 48 and less than or equal to 54.

[0058] In this embodiment, the ratio of the total area S1 of the end surface of the rotor body 110 to the area S2 of the through hole 114 is greater than or equal to 48 and less than or equal to 54, thereby ensuring the strength of the rotor body 110 and increasing the area of ​​the through hole 114, thereby ensuring the effect of reducing the pressure pulsation of the compressor 200. That is, S1÷S2=A, and the value range of A is 48 to 54. Optionally, A can be equal to 48, 49, 50, 51, 52, 53 or 54, etc.

[0059] Alternatively, if Figure 2 As shown, the area of ​​the grid lines in the figure is the total area S1 of the end surface of the rotor body 110, that is, the end surface of the rotor body 110 is regarded as a circle, S1=π×R3×R3, wherein S1 is the total area of ​​the end surface of the rotor body 110, and R3 is the diameter of the rotor body 110.

[0060] like Figure 3 As shown, the area of ​​the grid lines in the figure is the area S2 of the through-flow hole 114.

[0061] like Figure 4 As shown, in some embodiments, optionally, the minimum distance L between adjacent through-holes 114 is greater than or equal to 0.5 mm and less than or equal to 0.2.5 mm.

[0062] In this embodiment, the minimum distance L between adjacent flow holes 114 is greater than or equal to 0.5 mm and less than or equal to 2.5 mm, thereby ensuring the strength of the rotor body 110 while increasing the number of flow holes 114 to ensure the effect of reducing pressure pulsation of the compressor 200.

[0063] Optionally, the minimum distance L between the through holes 114 may be equal to 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, or 2.5 mm.

[0064] like Figure 4 As shown, in some embodiments, optionally, the ratio of the diameter R2 of the outer arc of the fan ring hole 116 to the diameter R1 of the inner arc of the fan ring hole 116 ranges from greater than or equal to 1.5 to less than or equal to 1.7.

[0065] In this embodiment, the ratio of the diameter R2 of the outer arc of the fan ring hole 116 to the diameter R1 of the inner arc of the fan ring hole 116 is greater than or equal to 1.5 and less than or equal to 1.7, thereby ensuring that the through hole 114 has a radial width along the rotor body 110, ensuring that the through hole 114 has a certain area, and ensuring that there is a certain distance between the through hole 114 and the shaft hole 112, thereby improving the strength of the rotor body 110. That is, R2÷R1=B, and the value range of B is 1.5 to 1.7. Optionally, B can be equal to 1.5, 1.6 or 1.7, etc.

[0066] like Figure 4 As shown, in some embodiments, optionally, the ratio of the diameter R3 of the rotor body 110 to the diameter R2 of the outer arc of the fan ring hole 116 ranges from greater than or equal to 0.5 to less than or equal to 0.61.

[0067] In this embodiment, the ratio of the diameter R3 of the rotor body 110 to the diameter R2 of the outer arc of the fan ring hole 116 is greater than or equal to 0.5 and less than or equal to 0.61, ensuring that the through hole 114 has a certain area, and that there is a certain distance between the through hole 114 and the outer periphery of the rotor body 110 to make room for other structures. That is, R3÷R2=C, and the value range of C is 0.5 to 0.61. Optionally, C can be equal to 0.5, 0.55, 0.6 or 0.61, etc.

[0068] In some embodiments, optionally, the central angle of the fan ring hole 116 has a value range greater than or equal to 23 degrees and less than or equal to 26 degrees.

[0069] In this embodiment, the central angle of the fan ring hole 116 has a value range of greater than or equal to 23 degrees and less than or equal to 26 degrees, thereby ensuring that the through hole 114 is along the circumferential length of the rotor body 110. Since the more through holes 114 there are, the more parts there are between adjacent through holes 114, which leads to a smaller total area of ​​the through holes 114. The fewer through holes 114 there are, the fewer parts there are between adjacent through holes 114, which leads to a lower strength of the rotor body 110. The central angle of the fan ring hole 116 has a value range of greater than or equal to 23 degrees and less than or equal to 26 degrees, which can ensure that the size of the through hole 114 is reasonable, taking into account the strength of the rotor body 110 and the total area of ​​the through hole 114. Optionally, it can be equal to 23 degrees, 24 degrees, 25 degrees or 26 degrees, etc.

[0070] like Figures 1 to 4 As shown, in some embodiments, optionally, the rotor body 110 includes a plurality of fastening holes 122 and a plurality of magnetic member slots 124, the fastening holes 122 extend axially along the rotor body 110, the magnetic member slots 124 extend axially along the rotor body 110, the plurality of fastening holes 122 are arranged around the plurality of flow holes 114, and the plurality of magnetic member slots 124 are arranged around the plurality of flow holes 114.

[0071] In this embodiment, the rotor body 110 includes a plurality of fastening holes 122 and a plurality of magnetic member slots 124. The fastening holes 122 are used to fasten the rotor body 110, and the magnetic member slots 124 are used to insert magnetic members. The plurality of fastening holes 122 extend axially along the rotor body 110, and the magnetic member slots 124 extend axially along the rotor body 110. In addition, the plurality of fastening holes 122 are arranged around the plurality of flow holes 114, and the plurality of magnetic member slots 124 are arranged around the plurality of flow holes 114, thereby reducing the influence of the fastening holes 122 and the magnetic member slots 124 on the flow holes 114, which is beneficial to increasing the area of ​​the flow holes 114.

[0072] Optionally, the magnetic member slots 124 may be V-shaped slots or W-shaped slots, and the fastening holes 122 are located between adjacent magnetic member slots 124 .

[0073] The number of the magnetic slots 124 may be 2, 4, 6, 8, 10, 12, 14, 16 or 18, etc. The number of the fastening holes 122 may be 2, 3, 4, 5 or 6, etc.

[0074] Optionally, a plurality of magnetic member slots 124 are evenly arranged around the shaft hole 112. A plurality of fastening holes 122 slots are evenly arranged around the shaft hole 112.

[0075] like Figure 5 As shown, in some embodiments, optionally, the rotor body 110 is formed by stacking a plurality of rotor sheets.

[0076] In this embodiment, the rotor body 110 is formed by stacking a plurality of rotor sheets, thereby reducing the production cost of the rotor structure 100 .

[0077] like Figure 6 As shown, according to the second aspect of the utility model, the utility model provides a compressor 200, comprising: a rotor structure 100 provided in the embodiment of the first aspect.

[0078] The compressor 200 provided by the utility model includes the rotor structure 100 provided in the first aspect embodiment, and therefore has all the beneficial effects of the rotor structure 100 provided in the first aspect embodiment, which will not be described one by one here.

[0079] The compressor 200 includes a liquid reservoir 300 , a housing 210 , a piston 290 , a first bearing 260 , a cylinder 280 , a second bearing 270 , a muffler 250 , a stator structure 240 , a rotor structure 100 , a first cover 220 and a second cover 230 . Specifically, the first cover body 220 and the second cover body 230 are respectively arranged at both ends of the shell 210 to form a cavity, the first bearing 260, the cylinder 280, the second bearing 270, the muffler 250, the stator structure 240 and the rotor structure 100 are arranged in the cavity, the stator structure 240 and the cylinder 280 are arranged on the shell 210, the rotor structure 100 is arranged on the inner side of the stator structure 240, the first bearing 260 and the second bearing 270 are arranged on both sides of the cylinder 280, the muffler 250 is arranged on the first bearing 260, the piston 290 is penetrated by the muffler 250, the first bearing 260, the second bearing 270 and the cylinder 280, and the piston 290 and the cylinder 280 are arranged in coordination, the piston 290 and the rotor structure 100 are connected, when the rotor structure 100 rotates, the piston 290 is driven to rotate, so that the piston 290 and the cylinder 280 cooperate to realize the compression of the refrigerant. Furthermore, the cylinder 280 is also connected to the liquid reservoir 300 .

[0080] Among them, the rotor structure 100 includes a rotor body 110, which is formed by stacking rotor punchings. A part of the refrigerant in the shell 210 enters the upper cavity of the compressor 200 through the flow hole 114 on the rotor body 110, that is, the side of the rotor structure 100 away from the cylinder 280. The utility model effectively increases the heat dissipation area of ​​the rotor structure 100 by limiting the area and size of the flow hole 114, which is beneficial to reducing the overall temperature of the rotor structure 100 and improving the operating efficiency and reliability of the compressor 200.

[0081] In addition, the flow hole 114 indirectly increases the volume of the entire compressor 200 cavity, which can effectively reduce the pressure pulsation of the compressor 200, reduce the fluctuation of the refrigerant during the operation of the compressor 200, and reduce the resistance of the refrigerant during the operation of the refrigerant, thereby increasing the cooling capacity and reducing the input shaft power, and can better meet the energy efficiency and pressure pulsation requirements of the compressor 200.

[0082] like Figure 6 As shown, the compressor 200 provided by the utility model includes a liquid reservoir 300, a housing 210, a piston 290, a first bearing 260, a cylinder 280, a second bearing 270, a muffler 250, a stator structure 240, a rotor structure 100, a housing 210, a first cover 220 and a second cover 230. The liquid reservoir 300 is used to separate the lubricating oil and prevent the compressor 200 from having a liquid hammer phenomenon.

[0083] The compression part of the compressor 200 is composed of a cylinder 280 , a first bearing 260 , a second bearing 270 , a piston 290 and a muffler 250 .

[0084] The electric part is composed of a stator structure 240 and a rotor structure 100. The motor part drives the compression part to operate so as to realize the refrigerant compression suction, compression, exhaust and silencing process of the compressor 200. The housing 210, the first cover 220 and the second cover 230 enclose the compression part and the electric part.

[0085] The rotor structure 100 is formed by stacking rotor punchings. Six through holes 114 can be set on the rotor punchings. It is a disc structure. Of course, the number of through holes 114 can also be other numbers, such as 4, 8, and 9.

[0086] The rotor punching is provided with a plurality of through holes 114, a plurality of magnetic member slots 124 and an axial hole 112 that penetrate the rotor punching along the axial direction. The rotor punching also has a plurality of fastening holes 122, and the plurality of fastening holes 122 are arranged around the axial hole 112 respectively.

[0087] For the flow hole 114, it can be understood that the refrigerant is discharged from the muffler 250 of the compressor 200, and a part of it enters the upper cavity of the compressor 200 through the flow hole 114. Reasonable setting of the area of ​​the flow hole 114 effectively increases the heat dissipation area of ​​the rotor structure 100, which is beneficial to reducing the overall temperature of the rotor structure 100 and improving the operating efficiency and reliability of the compressor 200.

[0088] In addition, the increase in the area of ​​the flow hole 114 indirectly increases the volume of the entire compressor 200 cavity, which can effectively reduce pressure pulsation, reduce refrigerant fluctuations during the operation of the compressor 200, and reduce resistance during the operation of the refrigerant, thereby increasing the cooling capacity and reducing the input shaft power.

[0089] like Figures 2 to 4 As shown, the flow hole 114 includes a fan ring hole 116, the inner arc diameter of the fan ring hole 116 is R1, the outer arc diameter of the fan ring hole 116 is R2, the area of ​​the flow hole 114 is S2, the diameter of the entire rotor body 110 is R3, and the total area of ​​the end face of the rotor body 110 is S1.

[0090] Optionally, the minimum distance between two adjacent through holes 114 is L, 0.2 mm≤L≤0.8 mm, so as to ensure the strength of the rotor body 110 and allow the through holes 114 to have a sufficient area.

[0091] Optionally, the diameter R2 of the outer arc of the fan ring hole 116 is greater than or equal to 1.5 and less than or equal to 1.7 than the diameter R1 of the inner arc of the fan ring hole 116, thereby increasing the size of the flow hole 114 in the radial direction of the rotor body 110 to ensure that the flow hole 114 has sufficient area.

[0092] Optionally, the diameter R3 of the rotor body 110 is greater than or equal to 0.5 and less than or equal to 0.61 compared to the diameter R2 of the outer arc of the sector ring hole 116 , thereby ensuring that the through hole 114 occupies a space of appropriate size on the entire rotor body 110 .

[0093] Optionally, the central angle D of the sector ring hole 116 is greater than or equal to 23 degrees and less than or equal to 26 degrees, so as to ensure the strength of the rotor body 110 and allow the through hole 114 to have a sufficient area.

[0094] Optionally, the total area S1 of the end surface of the rotor body 110 is greater than or equal to 48 and less than or equal to 54 compared to the area S2 of the flow hole 114, thereby ensuring that the area of ​​the flow hole 114 has an appropriate area on the entire rotor body 110 to increase the heat dissipation area of ​​the rotor structure 100 and reduce the pressure pulsation of the compressor 200.

[0095] like Figure 7 As shown, compared with the compressor in the related art without flow holes, the compressor 200 provided by the utility model has a pressure pulsation that is significantly better than that of the compressor in the related art at a frequency of 0 to 4000 Hz.

[0096] According to a third aspect of the utility model, the utility model provides an electrical device, including: a rotor structure 100 provided in the embodiment of the first aspect; or a compressor 200 provided in the embodiment of the second aspect.

[0097] The electrical equipment provided by the utility model includes the rotor structure 100 provided in the first embodiment or the compressor 200 provided in the second embodiment, and therefore has all the beneficial effects of the rotor structure 100 provided in the first embodiment or the compressor 200 provided in the second embodiment, which are not listed one by one here.

[0098] The electrical equipment may be a refrigerator or an air conditioner.

[0099] According to a fourth aspect of the utility model, the utility model provides a vehicle, comprising: a rotor structure 100 as provided in the embodiment of the first aspect; or a compressor 200 as provided in the embodiment of the second aspect.

[0100] The vehicle provided by the utility model includes the rotor structure 100 provided in the first embodiment or the compressor 200 provided in the second embodiment, and therefore has all the beneficial effects of the rotor structure 100 provided in the first embodiment or the compressor 200 provided in the second embodiment, which are not listed one by one here.

[0101] The vehicle may be a tram.

[0102] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0103] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or units referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0104] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0105] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rotor structure, characterized in that: include: A rotor body, the rotor body comprising an axial hole and a plurality of through-holes, the axial hole axially penetrates the rotor body, the through-hole axially penetrates the rotor body, and the plurality of through-holes are arranged around the axial hole; Among them, the flow hole includes a connected fan ring hole, a first hole and a second hole, the inner arc of the fan ring hole faces the axial hole, and along the circumference of the rotor body, the first hole and the second hole are respectively arranged on both sides of the fan ring hole, the side of the first hole away from the fan ring hole is a curved structure, and the side of the second hole away from the fan ring hole is a curved structure.

2. The rotor structure according to claim 1, characterized in that: The ratio of the total area of ​​the end surface of the rotor body to the area of ​​the through hole is greater than or equal to 48 and less than or equal to 54.

3. The rotor structure according to claim 1, characterized in that: The minimum distance between adjacent through-holes is greater than or equal to 0.5 mm and less than or equal to 2.5 mm.

4. The rotor structure according to claim 1, characterized in that: The ratio of the diameter of the outer arc of the fan ring hole to the diameter of the inner arc of the fan ring hole is in a range greater than or equal to 1.5 and less than or equal to 1.

7.

5. The rotor structure according to claim 1, characterized in that: The ratio of the diameter of the rotor body to the diameter of the outer arc of the fan ring hole has a value range greater than or equal to 0.5 and less than or equal to 0.

61.

6. The rotor structure according to any one of claims 1 to 5, characterized in that: The rotor body includes a plurality of fastening holes and a plurality of magnetic member slots, wherein the fastening holes extend axially along the rotor body, the magnetic member slots extend axially along the rotor body, the plurality of fastening holes are arranged around the plurality of flow holes, and the plurality of magnetic member slots are arranged around the plurality of flow holes.

7. The rotor structure according to any one of claims 1 to 5, characterized in that: The rotor body is formed by stacking a plurality of rotor sheets.

8. A compressor, characterized in that: include: A rotor structure as claimed in any one of claims 1 to 7.

9. An electrical device, characterized in that: include: The rotor structure according to any one of claims 1 to 7; or The compressor as claimed in claim 8.

10. A vehicle, characterized in that: include: The rotor structure according to any one of claims 1 to 7; or The compressor as claimed in claim 8.

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