Rotary assembly and compressor, refrigeration device

Abstract

The application discloses a rotating assembly, a compressor and a refrigeration device, and relates to the technical field of rotating assemblies.The rotating assembly comprises a crankshaft, the crankshaft comprising a main shaft and an eccentric shaft connected to each other; and a rotor connected to the main shaft, the rotor comprising a first rotor part, the first rotor part comprising a plurality of first electromagnetic steel plates stacked together; the first electromagnetic steel plates are provided with a first counterweight hole and a second counterweight hole, and the connecting line of the center of the first counterweight hole and the center of the second counterweight hole passes through the rotation center of the rotor, so that the center of gravity of the first electromagnetic steel plates is not coincident with the rotation center and the unbalance amount generated when the crankshaft rotates is offset.The rotating assembly according to the embodiment of the application has the advantages of reducing the complexity of production and manufacturing, reducing the production cost and the like.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a rotating assembly, a compressor, and a refrigeration device. Background Technology

[0002] The compressor in the related technology compensates for the imbalance generated when the crankshaft rotates by adding a balance block on the rotor, but this method requires more raw materials and is more expensive. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a rotating assembly that has advantages such as reducing the complexity of production and manufacturing, and reducing production costs.

[0004] The present invention also proposes a compressor and a refrigeration device.

[0005] According to a first aspect of the present invention, a rotating assembly includes: a crankshaft, the crankshaft including a main shaft and an eccentric shaft connected together; a rotor, the rotor being connected to the main shaft, the rotor including a first rotor portion, the first rotor portion including a plurality of stacked first electromagnetic steel plates; the first electromagnetic steel plates having a first counterweight hole and a second counterweight hole, the line connecting the center of the first counterweight hole and the center of the second counterweight hole passing through the rotation center of the rotor, so that the center of gravity of the first electromagnetic steel plate does not coincide with the rotation center and cancels out the imbalance generated when the crankshaft rotates.

[0006] The rotating assembly according to embodiments of the present invention has advantages such as reducing the complexity of production and manufacturing, and reducing production costs.

[0007] In addition, the rotating assembly according to the above embodiments of the present invention may also have the following additional technical features:

[0008] According to some embodiments of the present invention, the first counterweight hole and the second counterweight hole are respectively formed as arc-shaped holes, and the center of the inner contour line of the arc-shaped hole coincides with the center of the outer contour line of the arc-shaped hole.

[0009] In some embodiments, the distance between the inner contour line and the outer contour line of the first counterweight hole is L1, and the distance between the inner contour line and the outer contour line of the second counterweight hole is L2, wherein L1 and L2 may be equal or unequal.

[0010] According to some embodiments of the present invention, the first counterweight hole and the second counterweight hole are respectively formed into arc-shaped holes, and the center of the inner contour line of the first counterweight hole and the center of the inner contour line of the second counterweight hole are on an imaginary circle with the rotation center as the center.

[0011] According to some embodiments of the present invention, the center of the first counterweight hole and the center of the second counterweight hole are at different distances from the rotation center.

[0012] According to some embodiments of the present invention, the first counterweight hole and the second counterweight hole are formed as through holes or blind holes.

[0013] According to some embodiments of the present invention, the first rotor portion comprises one; or, the first rotor portion comprises multiple first rotor portions arranged axially along the crankshaft.

[0014] According to some embodiments of the present invention, the rotor further includes: a second rotor portion, the second rotor portion and the first rotor portion being arranged along the axial direction of the crankshaft, the second rotor portion including a plurality of stacked second electromagnetic steel plates.

[0015] In some embodiments, the center of gravity of the second electromagnetic steel plate coincides with the center of rotation.

[0016] In some examples, the first rotor portion includes two, and the two first rotor portions are respectively disposed at both axial ends of the second rotor portion; wherein, in the two first rotor portions, the first counterweight hole of one first rotor portion is disposed opposite to the second counterweight hole of the other first rotor portion.

[0017] According to some embodiments of the present invention, the eccentric shaft comprises one; or, the eccentric shaft comprises two, and the axes of the two eccentric shafts are located on opposite sides of the axis of the main shaft.

[0018] According to a second aspect of the present invention, a compressor is provided, the compressor comprising: a housing; a rotating assembly, the rotating assembly being the rotating assembly described in the first aspect of the present invention; and a compression mechanism disposed within the housing, the compression mechanism comprising a cylinder assembly, a main bearing and a secondary bearing, wherein a crankshaft is rotatably supported on the main bearing and the secondary bearing.

[0019] According to a third aspect of the present invention, a refrigeration apparatus is provided, the refrigeration apparatus comprising a compressor as described in a second aspect of the present invention.

[0020] The compressor and refrigeration equipment according to embodiments of the present invention, by utilizing the rotating component described in the first aspect of the present invention, have advantages such as reducing the complexity of production and manufacturing, and reducing production costs.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of a rotating assembly according to an embodiment of the present invention. The assembly includes a rotor assembly having two first rotor sections and a second rotor section, a crankshaft having two eccentric shafts, and the second rotor section having a through hole.

[0024] Figure 2 This is a schematic diagram of the structure of a rotating assembly according to an embodiment of the present invention, wherein the rotor assembly has two first rotor sections and one second rotor section, and the crankshaft has two eccentric shafts.

[0025] Figure 3 This is a schematic diagram of the structure of a rotating assembly according to an embodiment of the present invention, wherein the rotor assembly has two first rotor portions and the crankshaft has two eccentric shafts.

[0026] Figure 4 This is a schematic diagram of the structure of a rotating assembly according to an embodiment of the present invention, wherein the rotor assembly has a first rotor portion and a second rotor portion, and the crankshaft has an eccentric shaft.

[0027] Figure 5 This is a schematic diagram of the structure of a rotating assembly according to an embodiment of the present invention, wherein the rotor assembly has a first rotor portion and the crankshaft has an eccentric shaft.

[0028] Figure 6 This is a schematic diagram of the structure of the first electromagnetic steel plate according to an embodiment of the present invention in one embodiment.

[0029] Figure 7 This is a schematic diagram of the structure of the first electromagnetic steel plate according to an embodiment of the present invention in another embodiment.

[0030] Figure 8 This is a schematic diagram of the compressor according to an embodiment of the present invention.

[0031] Figure label:

[0032] Rotating component 1, inner contour line S1, outer contour line S2, imaginary circle M,

[0033] Crankshaft 10, main shaft 110, eccentric shaft 120, first eccentric shaft 121, second eccentric shaft 122

[0034] Rotor 20, first rotor section 200, first electromagnetic steel plate 210, first counterweight hole 211, second counterweight hole 212, second rotor section 300, first through hole 311, second through hole 312.

[0035] Compressor 40, housing 410, first cover 411, second cover 412, main housing 413, compression mechanism 420, cylinder assembly 421, main bearing 422, auxiliary bearing 423, stator assembly 424. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The rotating assembly 1 according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0038] like Figures 1-7 As shown, the rotating assembly 1 according to an embodiment of the present invention includes a crankshaft 10 and a rotor 20.

[0039] The crankshaft 10 includes a main shaft 110 and an eccentric shaft 120 connected together. The rotor 20 includes a first rotor section 200, which includes multiple stacked first electromagnetic steel plates 210. During operation, the generated rotating magnetic field can drive the first electromagnetic steel plates 210 to rotate, thereby causing the first rotor section 200 to rotate and the rotor 20 to rotate. The rotor 20 is connected to the main shaft 110. When the rotor 20 rotates, it can drive the crankshaft 10 to rotate via the main shaft 110, thereby causing the eccentric shaft 120 to rotate eccentrically.

[0040] The first electromagnetic steel plate 210 has a first counterweight hole 211 and a second counterweight hole 212. The line connecting the center of the first counterweight hole 211 and the center of the second counterweight hole 212 passes through the rotation center of the rotor 20. Specifically, the line connecting the center of the first counterweight hole 211 and the rotation center is defined as the first line, and the line connecting the center of the second counterweight hole 212 and the rotation center is defined as the second line. The angle between the first line and the second line is a straight angle, so that the center of gravity of the first electromagnetic steel plate 210 does not coincide with the rotation center and cancels the imbalance generated when the crankshaft 10 rotates. Thus, when the rotor 20 and the crankshaft 10 rotate, the vibration and noise generated by the rotor assembly 1 can be reduced.

[0041] Specifically, since the crankshaft 10 includes an eccentric shaft 120, when the crankshaft 10 drives the eccentric shaft 120 to rotate, the crankshaft 10 will generate an imbalance. This imbalance is mainly due to the center of gravity of the eccentric shaft 120 shifting from its rotation center. Therefore, by setting a first counterweight hole 211 and a second counterweight hole 212 on the first electromagnetic steel plate 210, the center of gravity of the first electromagnetic steel plate 210 shifts from the rotation center, thereby balancing the imbalance generated on the crankshaft 10, and thus enabling the rotor assembly 1 to rotate stably.

[0042] Compared to adding a balance block on the rotor 20 to counteract the imbalance generated when the crankshaft 10 rotates, it is simpler to counteract the imbalance generated when the crankshaft 10 rotates by setting a first counterweight hole 211 and a second counterweight hole 212 on the first electromagnetic steel plate 210. Moreover, there is no need to install the balance block on the rotor 20 separately. This not only reduces the use of raw materials, but also reduces the complexity of installation, which makes it easier to reduce the complexity of rotor assembly 1 production and trial production, and thus reduces production costs.

[0043] Therefore, the rotating component 1 according to the embodiments of the present invention has advantages such as reducing the complexity of production and manufacturing, and reducing production costs.

[0044] The rotating assembly 1 according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0045] like Figures 1-7 As shown, the rotating assembly 1 according to an embodiment of the present invention includes a crankshaft 10 and a rotor 20.

[0046] In some embodiments of the present invention, such as Figure 6 As shown, the first counterweight hole 211 and the second counterweight hole 212 are respectively formed as arc-shaped holes. The center of the inner contour line S1 of the arc-shaped hole coincides with the center of the outer contour line S2 of the arc-shaped hole, so that the first counterweight hole 211 and the second counterweight hole 212 form relatively regular arc-shaped holes. This facilitates the formation of the first counterweight hole 211 and the second counterweight hole 212 on the first electromagnetic steel plate 210, and reduces the complexity of processing the first electromagnetic steel plate 210.

[0047] It should be noted that the inner contour line S1 of the arc-shaped hole refers to the contour line of the side of the arc-shaped hole closer to the center of rotation, and the outer contour line S2 of the arc-shaped hole refers to the contour line of the side of the arc-shaped hole farther from the center of rotation.

[0048] In some optional embodiments of the present invention, the distance between the inner contour line S1 and the outer contour line S2 of the first counterweight hole 211 is L1, and the distance between the inner contour line S1 and the outer contour line S2 of the second counterweight hole 212 is L2. L1 and L2 may be equal or unequal.

[0049] In some embodiments, the distance L1 between the inner contour line S1 and the outer contour line S2 of the first counterweight hole 211 is equal to the distance L2 between the inner contour line S1 and the outer contour line S2 of the second counterweight hole 212. The length of the inner contour line S1 of the first counterweight hole 211 is not equal to the length of the inner contour line S1 of the second counterweight hole 212, and the length of the outer contour line S2 of the first counterweight hole 211 is not equal to the length of the outer contour line S2 of the second counterweight hole 212.

[0050] In other words, the curvature of the arc-shaped hole formed by the first counterweight hole 211 is different from that of the arc-shaped hole formed by the second counterweight hole 212, causing the center of gravity of the first electromagnetic steel plate 210 to shift from the rotation center. Thus, the first counterweight hole 211 and the second counterweight hole 212 are used to shift the center of gravity of the first electromagnetic steel plate 210 from the rotation center, thereby counteracting the imbalance generated when the crankshaft 10 rotates.

[0051] Of course, the dimensions of the first counterweight hole 211 and the second counterweight hole 212 in the radial direction of the first electromagnetic steel plate 210 can also be restricted to be unequal, so that the center of gravity of the first electromagnetic steel plate 210 is offset from the center of rotation.

[0052] In some other embodiments, the distance L1 between the inner contour line S1 and the outer contour line S2 of the first counterweight hole 211 is not equal to the distance L2 between the inner contour line S1 and the outer contour line S2 of the second counterweight hole 212. In this case, the length of the inner contour line S1 of the first counterweight hole 211 is equal to or unequal to the length of the inner contour line S1 of the second counterweight hole 212, and the length of the outer contour line S2 of the first counterweight hole 211 is equal to or unequal to the length of the outer contour line S2 of the second counterweight hole 212.

[0053] In other words, when the distance L1 between the inner contour line S1 and the outer contour line S2 of the first counterweight hole 211 is not equal to the distance L2 between the inner contour line S1 and the outer contour line S2 of the second counterweight hole 212, the curvature of the arc-shaped hole formed by the first counterweight hole 211 and the curvature of the arc-shaped hole formed by the second counterweight hole 212 are the same or different. Both can cause the center of gravity of the first electromagnetic steel plate 210 to shift from the rotation center. Thus, the center of gravity of the first electromagnetic steel plate 210 can be shifted from the rotation center of the first electromagnetic steel plate 210 by using the first counterweight hole 211 and the second counterweight hole 212, thereby causing the first rotor part 200 to counteract the imbalance generated when the crankshaft 10 rotates.

[0054] Specifically, when machining the first counterweight hole 211 and the second counterweight hole 212 on the first electromagnetic steel plate 210, the size and position of the first counterweight hole 211 and the second counterweight hole 212 can be determined according to the unbalance generated by the crankshaft 10, so as to counteract the unbalance generated by the crankshaft 10 through the first electromagnetic steel plate 210.

[0055] In some embodiments of the present invention, such as Figure 6 As shown, the first counterweight hole 211 and the second counterweight hole 212 respectively form arc-shaped holes. The center of the inner contour line S1 of the first counterweight hole 211 and the center of the inner contour line S1 of the second counterweight hole 212 are on an imaginary circle M with the rotation center as the center.

[0056] like Figure 6As shown, in this embodiment, both the first counterweight hole 211 and the second counterweight hole 212 have an outer contour line S2 and an inner contour line S1. The line connecting the adjacent endpoints of the outer contour line S2 and the inner contour line S1 of the first counterweight hole 211 is a straight line. The line connecting the adjacent endpoints of the outer contour line S2 and the inner contour line S1 of the second counterweight hole 212 is also a straight line.

[0057] like Figure 7 As shown, in this embodiment, the line connecting the adjacent endpoints of the outer contour line S2 and the inner contour line S1 of the first counterweight hole 211 is an arc. The line connecting the adjacent endpoints of the outer contour line S2 and the inner contour line S1 of the second counterweight hole 212 is also an arc.

[0058] In some embodiments of the present invention, the distance between the center of the first counterweight hole 211 and the rotation center is different from the distance between the center of the second counterweight hole 212 and the rotation center, so as to use the first counterweight hole 211 and the second counterweight hole 212 to shift the center of gravity of the first electromagnetic steel plate 210 off the rotation center, thereby offsetting the imbalance generated when the crankshaft 10 rotates, so that the rotating assembly 1 can rotate smoothly.

[0059] In some embodiments of the present invention, the first counterweight hole 211 and the second counterweight hole 212 are formed as through holes or blind holes. By controlling the first counterweight hole 211 to be formed as a through hole or a blind hole, the overall weight of the first electromagnetic steel plate 210 can be controlled, thereby controlling the position of the center of gravity of the first electromagnetic steel plate 210, so that the first electromagnetic steel plate 210 can counteract the unbalance generated when the crankshaft 10 rotates, and the rotor assembly 1 can rotate stably.

[0060] like Figure 1 As shown, in this embodiment, the first counterweight hole 211 and the second counterweight hole 212 are formed as through holes, in which case the first electromagnetic steel plate 210 has a lighter mass. In other embodiments, the first counterweight hole 211 and the second counterweight hole 212 are formed as blind holes, in which case the electromagnetic steel plate has a heavier mass. Of course, one of the first counterweight hole 211 and the second counterweight hole 212 can also be formed as a through hole and the other as a blind hole, so that the center of gravity of the first electromagnetic steel plate 210 is offset from the center of rotation, thereby counteracting the imbalance generated when the crankshaft 10 rotates.

[0061] In some embodiments of the present invention, the rotor 20 includes a first rotor section 200, which is composed of a plurality of stacked first electromagnetic steel plates 210. When working, the generated rotating magnetic field can drive the plurality of first electromagnetic steel plates 210 to rotate synchronously, thereby driving the first rotor section 200 to rotate, and finally driving the crankshaft 10 to rotate.

[0062] In other embodiments of the present invention, the rotor 20 includes a plurality of first rotor portions 200, which are arranged along the axial direction of the crankshaft 10 so as to place the plurality of first rotor portions 200 in a suitable position so that the crankshaft 10 can be smoothly driven to rotate when the rotor 20 rotates.

[0063] Each first rotor section 200 includes multiple stacked first electromagnetic steel plates 210. During operation, the generated rotating magnetic field can drive the multiple first electromagnetic steel plates 210 to rotate synchronously, thereby driving the multiple first rotor sections 200 to rotate synchronously, and driving the crankshaft 10 to rotate.

[0064] In some embodiments of the present invention, the rotor 20 further includes a second rotor portion 300, which is arranged along the axial direction of the crankshaft 10 with the first rotor portion 200, so that the first rotor portion 200 and the second rotor portion 300 are positioned in a suitable position so that the crankshaft 10 can be smoothly driven to rotate when the first rotor portion 200 and the second rotor portion 300 rotate.

[0065] The second rotor section 300 includes multiple stacked second electromagnetic steel plates. During operation, the generated rotating magnetic field can drive the second electromagnetic steel plates to rotate, thereby driving the second rotor section 300 to rotate, so that the second rotor section 300 can drive the crankshaft 10 to rotate.

[0066] Specifically, during operation, the generated rotating magnetic field can drive the first electromagnetic steel plate 210 and the second electromagnetic steel plate to rotate synchronously, thereby driving the first rotor section 200 and the second rotor section 300 to rotate synchronously, so as to drive the crankshaft 10 to rotate smoothly.

[0067] In some optional embodiments of the present invention, the center of gravity of the second electromagnetic steel plate coincides with the center of rotation. That is, the second electromagnetic steel plate will rotate evenly when rotating, without affecting the imbalance of the crankshaft 10. By providing the second rotor section 300, it is easy to increase the overall mass and rigidity of the rotor 20, so that the rotor 20 can smoothly drive the crankshaft 10 to rotate.

[0068] In some specific embodiments of the present invention, such as Figure 2 As shown, the rotor 20 includes two first rotor sections 200, which are respectively disposed at both ends of the second rotor section 300. In the two first rotor sections 200, the first counterweight hole 211 of one first rotor section 200 is disposed opposite to the second counterweight hole 212 of the other first rotor section 200. This is to reduce the imbalance generated when the rotor assembly 1 rotates while the two first rotor sections 200 are disposed, thereby avoiding large vibrations or noise generated when the rotor assembly 1 rotates.

[0069] like Figure 1 As shown, in this embodiment, two first rotor sections 200 are respectively disposed at the upper and lower ends of the second rotor section 300. The second magnet plate has two symmetrical through holes, namely a first through hole 311 and a second through hole 312. The first through hole 311 corresponds to and is connected to the first counterweight hole 211 of the upper first rotor section 200 and the second counterweight hole 212 of the lower first rotor section 200. The second through hole 312 corresponds to and is connected to the second counterweight hole 212 of the upper first rotor section 200 and the first counterweight hole 211 of the lower first rotor section 200.

[0070] In some embodiments of the present invention, the crankshaft 10 includes an eccentric shaft 120. When the rotor 20 rotates, the rotor 20 can drive the crankshaft 10 to rotate, thereby driving the eccentric shaft 120 to rotate eccentrically.

[0071] like Figure 4 As shown, in this embodiment, the crankshaft 10 includes an eccentric shaft 120, and the rotor 20 includes a first rotor portion 200 and a second rotor portion 300, with the first rotor portion 200 disposed above the second rotor portion 300. Figure 5 As shown, in this embodiment, the crankshaft 10 includes an eccentric shaft 120, and the rotor 20 includes a first rotor section 200.

[0072] In other embodiments of the present invention, the crankshaft 10 includes two eccentric shafts 120, namely a first eccentric shaft 121 and a second eccentric shaft 122. The axes of the first eccentric shaft 121 and the second eccentric shaft 122 are located on opposite sides of the axis of the main shaft 110. By setting the first eccentric shaft 121 and the second eccentric shaft 122 on both sides of the main shaft 110, it is easier to reduce the imbalance generated by the main shaft 110 when it rotates, and avoid the main shaft 110 from experiencing large vibrations and noise due to the large imbalance when the rotor 20 drives the main shaft 110 to rotate.

[0073] like Figure 1 , Figure 2 As shown, in this embodiment, the crankshaft 10 includes two eccentric shafts 120, and the rotor 20 includes two first rotor sections 200 and one second rotor section 300, with the two first rotor sections 200 disposed at the upper and lower ends of the second rotor section 300. Figure 3 As shown, in this embodiment, the crankshaft 10 includes two eccentric shafts 120, and the rotor 20 includes two first rotor sections 200.

[0074] The following is based on the appendix Figure 1 A specific embodiment of the rotating assembly 1 of the present invention is described.

[0075] The crankshaft 10 includes a connected main shaft 110 and two eccentric shafts 120. The two eccentric shafts 120 are located below the main shaft 110. The two eccentric shafts 120 are a first eccentric shaft 121 and a second eccentric shaft 122, respectively. The first eccentric shaft 121 is located above the second eccentric shaft 122. It should be understood that the above directional limitation is only for the convenience of describing the drawings and does not limit the actual setting position and direction of the rotating component 1.

[0076] The rotor 20 is mounted on the main shaft 110. The rotor 20 includes two first rotor sections 200 and one second rotor section 300. The two first rotor sections 200 are located at the upper and lower ends of the second rotor section 300.

[0077] The center of gravity of the upper first rotor section 200 is located on one side of the rotation center, the center of gravity of the lower first rotor section 200 is located on the other side of the rotation center, the center of gravity of the second eccentric shaft 122 is located on one side of the rotation center, and the center of gravity of the first eccentric shaft 121 is located on the other side of the rotation center.

[0078] When the rotor assembly 1 rotates, the resultant force and torque between the two first rotor sections 200 and the first eccentric shaft 121 and the second eccentric shaft 122 are zero. The rotational inertia formed by the rotor 20 cancels out the rotational inertia formed by the crankshaft 10, so as to balance the unbalance generated by the crankshaft 10 when it rotates, and enable the rotor assembly 1 to rotate stably.

[0079] It should be noted that the moment of inertia and torque of the two first rotor sections 200 in the rotor 20 cannot be zero at the same time. The moment of inertia of the two first rotor sections 200 in the rotor 20 is related to the mass and the distance between the center of gravity and the center of rotation. This allows the center of gravity of the rotor 20 to shift away from the center of rotation in order to balance the unbalance generated by the crankshaft 10 during rotation.

[0080] The torque of the two first rotor sections 200 in the rotor 20 is related to the force and lever arm of the rotor 20, so that the rotor 20 will generate a certain torque when rotating. The torque can change the original rotation state of the rotor 20, thereby balancing the unbalance generated by the crankshaft 10 when rotating.

[0081] The following is based on the appendix Figure 8 A compressor 40 according to an embodiment of the present invention is described.

[0082] like Figure 8 As shown, the compressor 40 according to an embodiment of the present invention includes a housing 410, a rotating assembly 1 according to the above embodiment of the present invention, and a compression mechanism 420.

[0083] The compression mechanism 420 is located inside the housing 410 to protect the compression mechanism 420, provide a relatively stable working environment for the compression mechanism 420, and prevent objects in the external environment from scratching the compression mechanism 420 inside the housing 410.

[0084] The compressor 40 according to an embodiment of the present invention has advantages such as reducing the complexity of production and manufacturing, and reducing production costs by utilizing the rotating component 1 of the above embodiments of the present invention.

[0085] like Figure 8 As shown, in some embodiments, the housing 410 includes a first cover 411, a main housing 413, and a second cover 412. The two ends of the main housing 410 have a first opening and a second opening, respectively. The rotating component 1 can be placed inside the housing 410 from the first opening, and the compression mechanism 420 can be placed inside the housing 410 from the second opening.

[0086] The first cover 411 is located at the first opening, and the second cover 412 is located at the second opening, so as to close the first opening and the second opening, thereby sealing the main housing 413, providing a relatively closed working environment for the rotating assembly 1 and the compression mechanism 420, so that the rotating assembly 1 and the compression mechanism 420 can work smoothly.

[0087] The compression mechanism 420 includes a cylinder assembly 421, a main bearing 422 and a secondary bearing 423. The crankshaft 10 is rotatably supported on the main bearing 422 and the secondary bearing 423 so that the crankshaft 10 can rotate smoothly when the rotor 20 rotates.

[0088] In some examples, the main bearing 422 is located above the first eccentric shaft 121 and the auxiliary bearing 423 is located below the second eccentric shaft 122, so that the first eccentric shaft 121 and the second eccentric shaft 122 are positioned between the main bearing 422 and the auxiliary bearing 423, so as to ensure that the first eccentric shaft 121 and the second eccentric shaft 122 can rotate stably when the crankshaft 10 rotates.

[0089] In some embodiments, the cylinder assembly 421 has a compression chamber, and the crankshaft 10 includes an eccentric shaft 120 disposed in the compression chamber. When the rotor 20 rotates, the rotor 20 can drive the crankshaft 10 to rotate, thereby driving the eccentric shaft 120 to rotate in the compression chamber, so as to use the eccentric shaft 120 to compress the air in the compression chamber to obtain high temperature and high pressure gas.

[0090] In other embodiments, the cylinder assembly 421 has two compression chambers, namely a first compression chamber and a second compression chamber, which are arranged along the axial direction of the crankshaft 10. The crankshaft 10 includes two eccentric shafts 120, namely a first eccentric shaft 121 and a second eccentric shaft 122, which are spaced apart along the axial direction of the crankshaft 10. The axes of the first eccentric shaft 121 and the second eccentric shaft 122 are located on opposite sides of the axis of the main shaft 110.

[0091] The first eccentric shaft 121 is disposed in the first compression chamber, and the second eccentric shaft 122 is disposed in the second compression chamber. When the rotor 20 drives the crankshaft 10 to rotate, it can drive the first eccentric shaft 121 and the second eccentric shaft 122 to rotate eccentrically. The first eccentric shaft 121 is used to compress the air in the first compression chamber, and the second eccentric shaft 122 is used to compress the air in the second compression chamber to obtain high temperature and high pressure gas.

[0092] In some embodiments of the present invention, such as Figure 8 As shown, the compressor 40 also includes a stator assembly 424, which is sleeved on the outside of the rotor 20. When the compressor 40 is working, the stator assembly 424 can be energized to generate a rotating magnetic field near the rotor 20, thereby causing the rotor 20 to rotate. When the rotor 20 rotates, the rotor 20 can drive the crankshaft 10 to rotate, thereby driving the eccentric shaft 120 to rotate, so that the eccentric shaft 120 can compress the air in the corresponding compression chamber to generate high temperature and high pressure gas.

[0093] The following describes a refrigeration device according to an embodiment of the present invention.

[0094] The refrigeration equipment according to an embodiment of the present invention includes a compressor 40 according to the above embodiment of the present invention.

[0095] The refrigeration equipment according to the embodiments of the present invention, by utilizing the compressor 40 of the above embodiments of the present invention, has advantages such as reducing the complexity of production and manufacturing, and reducing production costs.

[0096] The compressor 40, other components of the refrigeration equipment, and operation according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0097] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, features 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. In the description of this invention, "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them.

[0098] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0099] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0101] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rotating assembly, characterized in that, include: A crankshaft, the crankshaft comprising a main shaft and an eccentric shaft connected together; The rotor is connected to the main shaft, and the rotor includes a first rotor section, which includes a plurality of stacked first electromagnetic steel plates. The first electromagnetic steel plate has a first counterweight hole and a second counterweight hole. The line connecting the center of the first counterweight hole and the center of the second counterweight hole passes through the rotation center of the rotor, so that the center of gravity of the first electromagnetic steel plate does not coincide with the rotation center and cancels out the imbalance generated when the crankshaft rotates. The first counterweight hole and the second counterweight hole are respectively formed into arc-shaped holes, and the center of the inner contour line of the first counterweight hole and the center of the inner contour line of the second counterweight hole are on an imaginary circle with the rotation center as the center. The rotor further includes a second rotor section, which is arranged along the axial direction of the crankshaft with the first rotor section. The second rotor section includes a plurality of stacked second electromagnetic steel plates. The center of gravity of the second electromagnetic steel plates coincides with the rotation center. The centers of the first and second counterweight holes are at different distances from the center of rotation. The first rotor section includes one; or, the first rotor section includes multiple first rotor sections arranged along the axial direction of the crankshaft. When there are two first rotor sections, the two first rotor sections are respectively disposed at both ends of the axial direction of the second rotor section; wherein, in the two first rotor sections, the first counterweight hole of one first rotor section is disposed opposite to the second counterweight hole of the other first rotor section.

2. The rotating assembly according to claim 1, characterized in that, The first counterweight hole and the second counterweight hole are respectively formed as arc-shaped holes, and the center of the inner contour line of the arc-shaped hole coincides with the center of the outer contour line of the arc-shaped hole.

3. The rotating assembly according to claim 2, characterized in that, The distance between the inner contour line and the outer contour line of the first counterweight hole is L1, and the distance between the inner contour line and the outer contour line of the second counterweight hole is L2. L1 and L2 may be equal or unequal.

4. The rotating assembly according to claim 1, characterized in that, The first counterweight hole and the second counterweight hole are formed as through holes or blind holes.

5. The rotating assembly according to claim 1, characterized in that, The eccentric shaft may be one; or the eccentric shaft may be two, with the axes of the two eccentric shafts located on opposite sides of the axis of the main shaft.

6. A compressor, characterized in that, include: case; A rotating assembly, wherein the rotating assembly is the rotating assembly according to any one of claims 1-5; A compression mechanism is disposed within the housing. The compression mechanism includes a cylinder assembly, a main bearing, and a secondary bearing. The crankshaft is rotatably supported on the main bearing and the secondary bearing.

7. A refrigeration device, characterized in that, Includes the compressor described in claim 6.

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