Rotor assembly, motor, compressor and air conditioner

Abstract

The invention provides a rotor assembly, a motor, a compressor and an air conditioner. The rotor assembly comprises a rotor core assembly; the balance block is arranged at the end part of the rotor iron core assembly; the fan cover is installed on the rotor iron core assembly, the fan cover and the balance block are located on the same side of the rotor iron core assembly, the fan cover comprises a fan cover body, and at least one part of the balance block is located in the fan cover body; the at least two hanging lugs are connected to the side, facing the rotor iron core assembly, of the fan cover body, any hanging lug protrudes out of the fan cover body, and the hanging lugs are connected with the rotor iron core assembly. The hanging lugs protruding out of the fan cover body are arranged in the fan cover, so that the fan cover can be connected with a rotor iron core assembly through the hanging lugs, the stability of the fan cover is improved, the fan cover is kept stable when rotating along with a rotor iron core, vibration caused by unstable connection of the fan cover is reduced, noise generated when the rotor assembly rotates at a high speed is reduced, and the service life of the fan cover is prolonged. Noise generated when the motor works is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a rotor assembly, a motor, a compressor and an air conditioner. Background Art

[0002] The air-conditioning compressor in the related technology includes a motor, the motor includes a rotor, a balancing block is provided on the rotor, and a wind shield is usually provided on the outside of the balancing block. Since the wind shield is connected to the rotor, when the rotor rotates at high speed, if the connection between the wind shield and the rotor is unstable, the wind shield will generate a lot of noise. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first object of the present invention is to provide a rotor assembly.

[0005] The second object of the present invention is to provide a motor.

[0006] The third objective of the present invention is to provide a compressor.

[0007] A fourth object of the present invention is to provide an air conditioner.

[0008] To achieve at least one of the above-mentioned purposes, according to a first aspect of the present invention, a rotor assembly is proposed, comprising: a rotor core assembly; a balancing block installed at the end of the rotor core assembly; a wind cover installed at the rotor core assembly, the wind cover and the balancing block are located on the same side of the rotor core assembly, the wind cover comprising: a wind cover body, at least a portion of the balancing block is located inside the wind cover body; at least two hanging ears connected to a side of the wind cover body facing the rotor core assembly, any one hanging ear protruding from the wind cover body, and the hanging ear is connected to the rotor core assembly.

[0009] The present application proposes a rotor assembly, which is used in a motor of a compressor. The rotor assembly includes a rotor core assembly and a balancing block. The motor used for the rotor assembly includes a stator. The rotor assembly can rotate relative to the stator. The compressor used for the motor includes a crankshaft, which is connected to the rotor assembly. Specifically, the crankshaft is connected to the rotor core assembly, and when the rotor assembly rotates, the crankshaft is driven to rotate. Among them, the crankshaft is an eccentric structure, and the crankshaft rotates eccentrically. In order to keep the rotor assembly balanced, the present application provides a balancing block in the rotor assembly so that the rotor assembly can remain stable when rotating. Specifically, the balancing block is installed at the end of the rotor core assembly, and the balancing block is biased to one side of the rotor core assembly. In this way, the eccentricity of the crankshaft can be balanced by the balancing block, so that the rotor assembly can remain balanced during rotation. The balancing block protrudes from the end of the rotor core assembly.

[0010] Furthermore, the rotor core assembly also includes a wind shield, which is used to protect the balancing block and reduce the noise generated by the balancing block when the rotor assembly rotates. It can be understood that there is lubricating oil in the compressor, and the balancing block hits the lubricating oil when the rotor assembly rotates, thereby generating noise. In order to reduce the noise of the balancing block, the present application also provides a wind shield in the rotor assembly. Specifically, the wind shield is installed on the rotor core assembly, and the wind shield and the balancing block are located on the same side of the rotor core assembly. The wind shield can play a certain blocking role on the lubricating oil, so as to reduce the noise generated by the balancing block hitting the lubricating oil when the rotor core assembly rotates.

[0011] Furthermore, the wind shield includes a wind shield body and at least two hanging ears, wherein the wind shield body is used to block the lubricating oil, and the hanging ears are used to connect with the rotor core assembly. Specifically, the hanging ears are connected to the wind shield body and protrude from the edge of the wind shield body toward the rotor core assembly, and at least a part of the balancing block is located in the wind shield body, so that the lubricating oil can be blocked by the wind shield body, thereby reducing the noise generated by the balancing block hitting the lubricating oil. The hanging ears are connected to the rotor core assembly to achieve the connection between the wind shield and the rotor core assembly. Since the hanging ears are a separate connection structure, they can be firmly connected to the rotor core assembly. Compared with the wind shield without the hanging ear structure in the related art, the connection between the wind shield and the rotor core assembly in the present application is more firmly, and even when the rotor core assembly drives the wind shield to rotate at a high speed, the wind shield can remain stable, reducing the vibration of the wind shield due to unstable connection, thereby reducing the noise generated by the rotor assembly when rotating at a high speed.

[0012] By arranging a wind shield in the rotor assembly, the lubricating oil can be blocked by the wind shield, so as to reduce the noise generated by the balancing block impacting the lubricating oil when the rotor core assembly rotates. By arranging a hanging ear protruding from the wind shield body in the wind shield, the wind shield can be connected to the rotor core assembly through the hanging ear, thereby improving the stability of the wind shield, so that the wind shield remains stable when rotating with the rotor core, reducing the vibration of the wind shield due to unstable connection, thereby reducing the noise generated by the rotor assembly when rotating at high speed, and reducing the noise when the motor is working.

[0013] According to the above-mentioned rotor assembly of the present invention, it can also have the following distinguishing technical features:

[0014] In some technical schemes, optionally, any hanging ear includes: a connecting plate, connected to the wind cover body and extending in the direction toward the rotor core assembly; a mounting plate, connected to one end of the connecting plate away from the wind cover body, the mounting plate is in contact with the end face of the rotor core assembly, and the mounting plate can be mounted on the rotor core assembly.

[0015] In this technical solution, the structure of the hanging ear is defined. Any hanging ear includes a connecting plate and a mounting plate, the mounting plate is used to connect to the rotor core assembly, and the connecting plate is used to connect the mounting plate to the wind shield body. Specifically, the connecting plate is connected to the edge of the wind shield body and extends in the direction toward the rotor core assembly, that is, the connecting plate protrudes from the edge of the wind shield body, the mounting plate is connected to one end of the connecting plate away from the wind shield body, and the mounting plate can be installed on the rotor core assembly. In this way, the installation and fixation of the wind shield can be achieved through the cooperation between the mounting plate and the rotor core assembly.

[0016] Furthermore, the mounting plate fits against the end surface of the rotor core assembly, thus increasing the contact area between the hanging ear and the rotor core assembly, further improving the stability of the wind cover.

[0017] In some technical solutions, optionally, the mounting plate extends in a direction toward the axial center of the rotor core assembly.

[0018] In this technical solution, the mounting plate is further defined. The mounting plate extends in the direction toward the axis of the rotor core assembly, that is, the mounting plate extends in the direction of the inner side of the air cover body. In this way, it is possible to avoid the mounting plate protruding from the edge of the rotor core assembly and to avoid interference between the mounting plate and other components in the compressor. In addition, by extending the mounting plate in the direction toward the axis of the rotor core assembly, the contact area between the mounting plate and the end face of the rotor core assembly can be increased, thereby improving the connection reliability between the mounting plate and the rotor core assembly.

[0019] The shape of the mounting plate may be circular, triangular, rectangular or other polygonal.

[0020] In some technical schemes, optionally, any mounting plate has a first mounting hole, the wind cover body has at least two second mounting holes, the second mounting holes are arranged one-to-one corresponding to the first mounting holes, and the rotor assembly also includes: at least two first connecting members, the first connecting members pass through the corresponding second mounting holes and the first mounting holes in sequence to be connected to the rotor core assembly.

[0021] In this technical solution, the structure of the wind hood is further defined. Any mounting plate has a first mounting hole, and at least two second mounting holes are provided on the wind hood body, and the second mounting holes are arranged in a one-to-one correspondence with the first mounting holes, and the rotor assembly includes at least two first connecting members, and the first connecting members are adapted to the first mounting holes and the second mounting holes. Specifically, the number of the first connecting members is the same as the number of the first mounting holes and the second mounting holes, and the first connecting members are arranged in a one-to-one correspondence with the first mounting holes and the second mounting holes. The first connecting member passes through the corresponding second mounting holes and the first mounting holes in sequence, and then is connected to the rotor core assembly, so that the wind hood can be installed on the rotor core assembly to achieve installation and fixation of the wind hood. Among them, the first connecting member can be a rivet.

[0022] In some technical solutions, optionally, the wind shield main body includes: a shield body, a hanging ear connected to the shield body; an end plate connected to an end of the shield body away from the hanging ear, and the second mounting hole is provided on the end plate.

[0023] In this technical solution, the structure of the wind hood body is defined. The wind hood body includes a hood body and an end plate. The hood body is a cylindrical structure, and the lug is connected to the edge of the hood body. The end plate is a plate-like structure, and the end plate is connected to the end of the hood body away from the lug, and the second mounting hole is provided on the end plate. By providing the hood body and the end plate in the wind hood, the wind hood can block the lubricating oil from multiple directions, thereby improving the noise reduction effect of the wind hood.

[0024] In some technical solutions, optionally, the end plate has a symmetry axis, and at least two hanging ears are symmetrically arranged relative to the symmetry axis.

[0025] In this technical solution, the arrangement of the ears is limited. The end plate has a symmetry axis, which is the center line of the end plate, and at least two ears are symmetrically arranged relative to the symmetry axis. When the number of ears is an even number, the multiple ears are respectively arranged on both sides of the symmetry axis. When the number of ears is an odd number, the projection of one ear on the end plate is located on the symmetry axis, and the remaining ears are symmetrically arranged on both sides of the symmetry axis. In this way, the overall force of the wind shield can be balanced, and the stability of the wind shield can be improved.

[0026] In some technical solutions, optionally, the end plate is also provided with at least two third mounting holes, the third mounting holes correspond to the balancing block setting, and the rotor assembly also includes: at least two second connecting members, any second connecting member passes through the corresponding third mounting hole and connects the balancing block to the rotor core assembly.

[0027] In this technical solution, the rotor assembly is further defined. At least two third mounting holes are also provided on the end plate, and the third mounting holes are arranged corresponding to the balancing block. The rotor assembly also includes at least two second connecting members, and the second connecting members are used to install the balancing block. Specifically, at least two second connecting members are arranged in a one-to-one correspondence with at least two third mounting holes, and any second connecting member first passes through the corresponding third mounting hole, and then connects the balancing block to the rotor core assembly. In this way, while the balancing block is installed and fixed, the wind shield can be further installed and fixed through the second connecting member, and the wind shield assembly is further connected to the rotor core assembly through the second connecting member, thereby improving the stability of the wind shield. Among them, the second connecting member can be a rivet.

[0028] In some technical solutions, optionally, at least two third mounting holes are symmetrically arranged relative to the symmetry axis.

[0029] In this technical solution, the arrangement of at least two third mounting holes is limited. Specifically, at least two third mounting holes are symmetrically arranged relative to the symmetry axis of the end plate. When the number of the third mounting holes is an even number, the plurality of third mounting holes are respectively arranged on both sides of the symmetry axis. When the number of the third mounting holes is an odd number, one third mounting hole is located on the symmetry axis, and the remaining third mounting holes are symmetrically arranged on both sides of the symmetry axis. In this way, the overall force of the wind shield can be balanced, thereby improving the stability of the wind shield.

[0030] In some technical solutions, optionally, the third mounting hole and the second mounting hole are respectively close to two ends of the end plate.

[0031] In this technical solution, the relative positions of the third mounting hole and the second mounting hole are defined. Specifically, the third mounting hole and the second mounting hole are respectively close to the two ends of the end plate. Since the first connecting member passes through the second mounting hole to connect the wind cover to the rotor core assembly, and the second connecting member passes through the third mounting hole to connect the wind cover to the rotor core assembly, by making the third mounting hole and the second mounting hole close to the two ends of the end plate, the overall force of the wind cover can be balanced, avoiding the situation of unilateral local force, so as to improve the stability of the wind cover.

[0032] In some technical solutions, optionally, the end plate is provided with weight-reducing holes.

[0033] In this technical solution, the structure of the wind hood is further defined. Specifically, in order to reduce the overall weight of the wind hood, a weight-reducing hole is provided on the end plate. Specifically, the weight-reducing hole is located at the center of the end plate to avoid the deviation of the center of gravity of the end plate. By providing the weight-reducing hole on the end plate, the overall weight of the wind hood can be reduced. When the wind hood rotates at high speed with the rotor core assembly, the noise generated by the vibration of the wind hood can be reduced. And because the crankshaft of the compressor passes through the weight-reducing hole, it can also play a certain blocking role on the weight-reducing hole, thereby preventing the external lubricating oil from impacting the balance block in the wind hood.

[0034] In some technical solutions, optionally, the ear is integrally formed with the wind shield body.

[0035] In this technical solution, the structure of the wind shield is further limited. The ear is integrally formed with the wind shield body, which can improve the processing efficiency of the wind shield on the one hand, and improve the integrity of the wind shield on the other hand, thereby improving the overall strength of the wind shield.

[0036] The second aspect of the present invention further provides an electric motor, comprising the rotor assembly provided by the first aspect of the present invention.

[0037] The motor provided in the second aspect of the present invention comprises the rotor assembly proposed in the first aspect of the present invention, and therefore has all the beneficial effects of the rotor assembly.

[0038] The third aspect of the present invention further provides a compressor, comprising the motor provided by the second aspect of the present invention.

[0039] The compressor provided in the third aspect of the present invention comprises the motor provided in the second aspect of the present invention, and therefore has all the beneficial effects of the motor.

[0040] In some technical solutions, optionally, the compressor further includes: a crankshaft, which passes through a wind shield of the rotor assembly and is connected to a rotor core assembly of the rotor assembly.

[0041] In this technical solution, the structure of the compressor is defined. The compressor also includes a crankshaft, which is connected to the rotor core assembly of the rotor assembly. When the rotor core assembly rotates, the rotor core assembly drives the crankshaft to rotate accordingly. The crankshaft is an eccentric structure, and the balancing block in the rotor assembly can balance the eccentricity of the crankshaft. The crankshaft passes through the wind shield of the rotor assembly and is connected to the rotor core of the rotor assembly. The wind shield is provided with a weight-reducing hole, and the crankshaft passes through the weight-reducing hole. Therefore, the crankshaft can play a certain role in blocking the weight-reducing hole, thereby preventing the external lubricating oil from impacting the balancing block in the wind shield.

[0042] The fourth aspect of the present invention further provides an air conditioner, comprising the compressor provided in the third aspect of the present invention.

[0043] The air conditioner provided in the fourth aspect of the present invention comprises the compressor proposed in the third aspect of the present invention, and thus has all the beneficial effects of the compressor.

[0044] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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:

[0046] Figure 1 One of the structural schematic diagrams of a compressor according to an embodiment of the present invention is shown;

[0047] Figure 2 A second structural schematic diagram of a compressor according to an embodiment of the present invention is shown;

[0048] Figure 3 One of the structural schematic diagrams of the wind shield according to an embodiment of the present invention is shown;

[0049] Figure 4 A second schematic diagram of the structure of an air hood according to an embodiment of the present invention is shown;

[0050] Figure 5 A third schematic diagram of the structure of an air hood according to an embodiment of the present invention is shown;

[0051] Figure 6 Shows Figure 5 Sectional view of section AA;

[0052] Figure 7 A fourth structural schematic diagram of an air hood according to an embodiment of the present invention is shown;

[0053] Figure 8 Shows Figure 7 Partial cross-sectional view of the middle BB section;

[0054] Fig. 9 A fifth structural schematic diagram of an air hood according to an embodiment of the present invention is shown;

[0055] Fig.10 A sixth structural schematic diagram of an air hood according to an embodiment of the present invention is shown;

[0056] Fig.11 FIG7 shows a seventh structural schematic diagram of an air hood according to an embodiment of the present invention.

[0057] in, Figures 1 to 11 The corresponding relationship between the reference numerals and the component names is as follows:

[0058] 100 rotor assembly, 110 rotor core assembly, 120 balancing block, 130 wind cover, 140 wind cover body, 141 cover body, 142 end plate, 143 second mounting hole, 144 third mounting hole, 145 weight reduction hole, 150 hanging ear, 151 connecting plate, 152 mounting plate, 153 first mounting hole, 160 first connecting piece, 170 second connecting piece, 200 compressor, 210 crankshaft. DETAILED DESCRIPTION

[0059] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. 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.

[0060] 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.

[0061] Refer to the following Figures 1 to 11 A rotor assembly 100 , a motor, a compressor 200 , and an air conditioner provided according to some embodiments of the present invention are described.

[0062] In one embodiment according to the present application, Figure 1 , Figure 2, Figure 3 and Figure 4 As shown, in the first aspect of the present invention, a rotor assembly 100 is proposed, comprising: a rotor core assembly 110; a balancing block 120, installed at the end of the rotor core assembly 110; a wind cover 130, installed at the rotor core assembly 110, the wind cover 130 and the balancing block 120 are located on the same side of the rotor core assembly 110, the wind cover 130 comprises: a wind cover body 140, at least a portion of the balancing block 120 is located in the wind cover body 140; at least two hanging ears 150, connected to the side of the wind cover body 140 facing the rotor core assembly 110, any one hanging ear 150 protrudes from the wind cover body 140, and the hanging ear 150 is connected to the rotor core assembly 110.

[0063] The present application proposes a rotor assembly 100, which is used in a motor of a compressor 200. The rotor assembly 100 includes a rotor core assembly 110 and a balancing block 120. The motor used by the rotor assembly 100 includes a stator, and the rotor assembly 100 can rotate relative to the stator. The compressor 200 used by the motor includes a crankshaft 210, which is connected to the rotor assembly 100. Specifically, the crankshaft 210 is connected to the rotor core assembly 110, and when the rotor assembly 100 rotates, the crankshaft 210 is driven to rotate. Among them, the crankshaft 210 is an eccentric structure, and the crankshaft 210 rotates eccentrically. In order to keep the rotor assembly 100 balanced, the present application sets a balancing block 120 in the rotor assembly 100 so that the rotor assembly 100 can remain stable when rotating. Specifically, the balancing block 120 is installed at the end of the rotor core assembly 110, and the balancing block 120 is biased toward one side of the rotor core assembly 110, so that the eccentricity of the crankshaft 210 can be balanced by the balancing block 120, so that the rotor assembly 100 can maintain balance during the rotation process. The balancing block 120 protrudes from the end of the rotor core assembly 110.

[0064] Furthermore, the rotor core assembly 110 further includes a wind shield 130, which is used to protect the balancing block 120 and reduce the noise generated by the balancing block 120 when the rotor assembly 100 rotates. It can be understood that the compressor 200 has lubricating oil, and the balancing block 120 hits the lubricating oil when the rotor assembly 100 rotates, thereby generating noise. In order to reduce the noise of the balancing block 120, the present application further provides a wind shield 130 in the rotor assembly 100. Specifically, the wind shield 130 is installed on the rotor core assembly 110, and the wind shield 130 and the balancing block 120 are located on the same side of the rotor core assembly 110. The wind shield 130 can play a certain blocking role on the lubricating oil, so as to reduce the noise generated by the balancing block 120 hitting the lubricating oil when the rotor core assembly 110 rotates.

[0065] Further, the wind shield 130 includes a wind shield body 140 and at least two hanging ears 150, wherein the wind shield body 140 is used to block the lubricating oil, and the hanging ears 150 are used to connect with the rotor core assembly 110. Specifically, the hanging ears 150 are connected to the wind shield body 140 and protrude from the edge of the wind shield body 140 facing the rotor core assembly 110, and at least a part of the balancing block 120 is located in the wind shield body 140, so that the lubricating oil can be blocked by the wind shield body 140, and the noise generated by the balancing block 120 hitting the lubricating oil is reduced. The hanging ears 150 are connected to the rotor core assembly 110 to realize the connection between the wind shield 130 and the rotor core assembly 110. Since the hanging ear 150 is a separate connection structure and can be firmly connected to the rotor core assembly 110, compared with the wind hood without a hanging ear structure in the related art, the connection between the wind hood 130 and the rotor core assembly 110 in the present application is more firmly established. Even when the rotor core assembly 110 drives the wind hood 130 to rotate at high speed, the wind hood 130 can remain stable, reducing the vibration of the wind hood 130 due to unstable connection, thereby reducing the noise generated by the rotor assembly 100 when rotating at high speed and reducing the noise when the motor is working.

[0066] By providing the wind shield 130 in the rotor assembly 100, the lubricating oil can be blocked by the wind shield 130, so as to reduce the noise generated by the balancing weight 120 impacting the lubricating oil when rotating with the rotor core assembly 110. By providing the wind shield 130 with a hanging ear 150 protruding from the wind shield body 140, the wind shield 130 can be connected to the rotor core assembly 110 through the hanging ear 150, thereby improving the stability of the wind shield 130, so that the wind shield 130 remains stable when rotating with the rotor core, reducing the vibration of the wind shield 130 due to unstable connection, and further reducing the noise generated by the rotor assembly 100 when rotating at high speed.

[0067] In some embodiments, optionally, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, any one of the hanging ears 150 includes: a connecting plate 151, which is connected to the wind cover body 140 and extends in the direction toward the rotor core assembly 110; a mounting plate 152, which is connected to the end of the connecting plate 151 away from the wind cover body 140, and the mounting plate 152 is in contact with the end face of the rotor core assembly 110, and the mounting plate 152 can be installed on the rotor core assembly 110.

[0068] In this embodiment, the structure of the lug 150 is defined. Any lug 150 includes a connecting plate 151 and a mounting plate 152, wherein the mounting plate 152 is used to connect to the rotor core assembly 110, and the connecting plate 151 is used to connect the mounting plate 152 to the wind shield body 140. Specifically, the connecting plate 151 is connected to the edge of the wind shield body 140 and extends in the direction toward the rotor core assembly 110, that is, the connecting plate 151 protrudes from the edge of the wind shield body 140, and the mounting plate 152 is connected to one end of the connecting plate 151 away from the wind shield body 140, and the mounting plate 152 can be installed on the rotor core assembly 110. In this way, the wind shield 130 can be installed and fixed by the cooperation of the mounting plate 152 and the rotor core assembly 110.

[0069] Furthermore, the mounting plate 152 fits against the end surface of the rotor core assembly 110 , thereby increasing the contact area between the hanging ear 150 and the rotor core assembly 110 , further improving the stability of the wind cover 130 .

[0070] In some embodiments, optionally, the mounting plate 152 extends in a direction toward the axial center of the rotor core assembly 110 .

[0071] In this embodiment, the mounting plate 152 is further defined. The mounting plate 152 extends in the direction toward the axis of the rotor core assembly 110, that is, the mounting plate 152 extends in the direction toward the inner side of the wind shield body 140. In this way, it is possible to avoid the mounting plate 152 protruding from the edge of the rotor core assembly 110, and to avoid interference between the mounting plate 152 and other components in the compressor 200. In addition, by extending the mounting plate 152 in the direction toward the axis of the rotor core assembly 110, the contact area between the mounting plate 152 and the end surface of the rotor core assembly 110 can be increased, thereby improving the connection reliability between the mounting plate 152 and the rotor core assembly 110.

[0072] The shape of the mounting plate 152 may be circular, triangular, rectangular or other polygonal shapes.

[0073] In some embodiments, optionally, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, any mounting plate 152 has a first mounting hole 153, the wind cover body 140 has at least two second mounting holes 143, the second mounting holes 143 are arranged one-to-one corresponding to the first mounting holes 153, and the rotor assembly 100 also includes: at least two first connecting members 160, the first connecting member 160 passes through the corresponding second mounting holes 143 and the first mounting holes 153 in sequence to be connected to the rotor core assembly 110.

[0074] In this embodiment, the structure of the wind shield 130 is further defined. Any mounting plate 152 has a first mounting hole 153, and the wind shield body 140 is provided with at least two second mounting holes 143, and the second mounting holes 143 are arranged in a one-to-one correspondence with the first mounting holes 153. The rotor assembly 100 includes at least two first connecting members 160, and the first connecting members 160 are adapted to the first mounting holes 153 and the second mounting holes 143. Specifically, the number of the first connecting members 160 is the same as the number of the first mounting holes 153 and the second mounting holes 143, and the first connecting members 160 are arranged in a one-to-one correspondence with the first mounting holes 153 and the second mounting holes 143. The first connecting member 160 passes through the corresponding second mounting holes 143 and the first mounting holes 153 in sequence, and then is connected to the rotor core assembly 110, so that the wind shield 130 can be installed on the rotor core assembly 110, and the installation and fixation of the wind shield 130 is achieved. Among them, the first connecting member 160 can be a rivet.

[0075] In some embodiments, optionally, Figure 1 , Figure 2 , Figure 3 , Figure 6 , Fig.10 and Fig.11 As shown, the wind shield body 140 includes: a shield body 141 , a hanging ear 150 connected to the shield body 141 ; an end plate 142 connected to one end of the shield body 141 away from the hanging ear 150 , and a second mounting hole 143 is provided on the end plate 142 .

[0076] In this embodiment, the structure of the wind shield body 140 is defined. The wind shield body 140 includes a shield body 141 and an end plate 142. The shield body 141 is a cylindrical structure, and the hanging ear 150 is connected to the edge of the shield body 141. The end plate 142 is a plate-like structure, and the end plate 142 is connected to one end of the shield body 141 away from the hanging ear 150, and the second mounting hole 143 is provided on the end plate 142. By providing the shield body 141 and the end plate 142 in the wind shield 130, the wind shield 130 can block the lubricating oil from multiple directions, thereby improving the noise reduction effect of the wind shield 130.

[0077] In some embodiments, optionally, Figure 7 As shown, the end plate 142 has a symmetry axis, and at least two hanging ears 150 are symmetrically arranged relative to the symmetry axis.

[0078] In this embodiment, the arrangement of the ears 150 is limited. The end plate 142 has a symmetry axis, which is the center line of the end plate 142, and at least two ears 150 are symmetrically arranged relative to the symmetry axis. When the number of the ears 150 is an even number, the multiple ears 150 are respectively arranged on both sides of the symmetry axis. When the number of the ears 150 is an odd number, the projection of one ear 150 on the end plate 142 is located on the symmetry axis, and the remaining ears 150 are symmetrically arranged on both sides of the symmetry axis. In this way, the overall force of the wind shield 130 can be balanced, and the stability of the wind shield 130 can be improved.

[0079] In some embodiments, optionally, Figure 2 , Figure 5 and Figure 7 As shown, the end plate 142 is also provided with at least two third mounting holes 144, and the third mounting holes 144 are arranged corresponding to the balancing block 120. The rotor assembly 100 also includes: at least two second connecting members 170, any second connecting member 170 passes through the corresponding third mounting hole 144 and connects the balancing block 120 to the rotor core assembly 110.

[0080] In this embodiment, the rotor assembly 100 is further defined. At least two third mounting holes 144 are also provided on the end plate 142, and the third mounting holes 144 are arranged corresponding to the balancing block 120. The rotor assembly 100 also includes at least two second connectors 170, and the second connectors 170 are used to install the balancing block 120. Specifically, at least two second connectors 170 are arranged in a one-to-one correspondence with at least two third mounting holes 144, and any second connector 170 first passes through the corresponding third mounting hole 144, and then connects the balancing block 120 to the rotor core assembly 110. In this way, while the balancing block 120 is installed and fixed, the wind shield 130 can be further installed and fixed through the second connector 170, so that the wind shield 130 assembly is further connected to the rotor core assembly 110 through the second connector 170, and the stability of the wind shield 130 is improved. Among them, the second connector 170 can be a rivet.

[0081] In some embodiments, optionally, Figure 5 and Figure 7 As shown, at least two third mounting holes 144 are symmetrically arranged relative to the symmetry axis.

[0082] In this embodiment, the arrangement of at least two third mounting holes 144 is limited. Specifically, at least two third mounting holes 144 are symmetrically arranged relative to the symmetry axis of the end plate 142. When the number of the third mounting holes 144 is an even number, the plurality of third mounting holes 144 are respectively arranged on both sides of the symmetry axis. When the number of the third mounting holes 144 is an odd number, one third mounting hole 144 is located on the symmetry axis, and the remaining third mounting holes 144 are symmetrically arranged on both sides of the symmetry axis. In this way, the overall force of the wind shield 130 can be balanced, thereby improving the stability of the wind shield 130.

[0083] In some embodiments, optionally, Figure 5 and Figure 7 As shown, the third mounting hole 144 and the second mounting hole 143 are respectively close to two ends of the end plate 142 .

[0084] In this embodiment, the relative positions of the third mounting hole 144 and the second mounting hole 143 are defined. Specifically, the third mounting hole 144 and the second mounting hole 143 are respectively close to the two ends of the end plate 142. Since the first connecting member 160 passes through the second mounting hole 143 to connect the wind cover 130 to the rotor core assembly 110, and the second connecting member 170 passes through the third mounting hole 144 to connect the wind cover 130 to the rotor core assembly 110, by making the third mounting hole 144 and the second mounting hole 143 respectively close to the two ends of the end plate 142, the overall force of the wind cover 130 can be balanced, avoiding the situation of unilateral local force, so as to improve the stability of the wind cover 130.

[0085] In some embodiments, optionally, Figure 5 and Figure 7 As shown, the end plate 142 is provided with lightening holes 145 .

[0086] In this embodiment, the structure of the wind shield 130 is further defined. Specifically, in order to reduce the overall weight of the wind shield 130, a weight-reducing hole 145 is provided on the end plate 142. Specifically, the weight-reducing hole 145 is located at the center of the end plate 142 to avoid the center of gravity of the end plate 142 from being skewed. By providing the weight-reducing hole 145 on the end plate 142, the overall weight of the wind shield 130 can be reduced. When the wind shield 130 rotates at a high speed with the rotor core assembly 110, the noise generated by the vibration of the wind shield 130 can be reduced. And because the crankshaft 210 of the compressor 200 passes through the weight-reducing hole 145, it can also play a certain blocking role on the weight-reducing hole 145, thereby preventing the external lubricating oil from impacting the balance block 120 in the wind shield 130.

[0087] In some embodiments, optionally, the ear 150 is integrally formed with the wind shield body 140 .

[0088] In this embodiment, the structure of the wind shield 130 is further limited. The ear 150 is integrally formed with the wind shield body 140, which can improve the processing efficiency of the wind shield 130 on the one hand, and improve the integrity of the wind shield 130 on the other hand, thereby improving the overall strength of the wind shield 130.

[0089] The second aspect of the present invention further provides an electric machine, comprising the rotor assembly 100 provided in the first aspect of the present invention.

[0090] The motor provided in the second aspect of the present invention comprises the rotor assembly 100 provided in the first aspect of the present invention, and thus has all the beneficial effects of the rotor assembly 100 .

[0091] The third aspect of the present invention further proposes a compressor 200, comprising the motor proposed in the second aspect of the present invention.

[0092] The compressor 200 provided in the third aspect of the present invention includes the motor provided in the second aspect of the present invention, and thus has all the beneficial effects of the motor.

[0093] In some embodiments, optionally, Figure 2 As shown, the compressor 200 further includes a crankshaft 210 , which passes through the wind cover 130 of the rotor assembly 100 and is connected to the rotor core assembly 110 of the rotor assembly 100 .

[0094] In this embodiment, the structure of the compressor 200 is defined. The compressor 200 also includes a crankshaft 210, which is connected to the rotor core assembly 110 of the rotor assembly 100. When the rotor core assembly 110 rotates, the rotor core assembly 110 drives the crankshaft 210 to rotate accordingly. The crankshaft 210 is an eccentric structure, and the balancing block 120 in the rotor assembly 100 can balance the eccentricity of the crankshaft 210. The crankshaft 210 passes through the wind shield 130 of the rotor assembly 100 and is connected to the rotor core of the rotor assembly 100. The wind shield 130 is provided with a weight-reducing hole 145, and the crankshaft 210 passes through the weight-reducing hole 145, so that the crankshaft 210 can play a certain blocking role on the weight-reducing hole 145, so as to prevent the external lubricating oil from impacting the balancing block 120 in the wind shield 130.

[0095] The fourth aspect of the present invention further provides an air conditioner, comprising the compressor 200 provided in the third aspect of the present invention.

[0096] The air conditioner provided in the fourth aspect of the present invention comprises the compressor 200 provided in the third aspect of the present invention, and thus has all the beneficial effects of the compressor 200.

[0097] like Figure 2As shown, in a possible embodiment, the motor rotor (i.e., rotor assembly 100) includes a rotor core (i.e., rotor core assembly 110), a balancing block 120, and a wind shield 130. Figure 5 As shown, the wind shield 130 is designed with an ear-hanging structure (i.e., the ear-hanging structure is symmetrically distributed about the cross section AA, and is used to fix the balance block 120 and the rotor core. The ear-hanging structure is suitable for high-speed working conditions, and the ear-hanging structure can increase the riveting force between the wind shield 130 and the rotor core. The end surface of the wind shield 130 (i.e., the end plate 142) is provided with at least two groups of circular holes (i.e., the second mounting hole 143 and the third mounting hole 144) symmetrical about the cross section AA, one group (i.e., the third mounting hole 144) is matched and fixed with the end surface of the balance block 120, and at least one group (i.e., the second mounting hole 143) meets the positioning process requirements of the balance block 120 and the ear-hanging structure. The shape of the ear-hanging structure can be circular, triangular, rectangular or other polygonal. The wind shield 130 with the ear-hanging structure can balance the vibration caused by mass imbalance during the operation of the motor, reduce the overall noise of the motor, and ensure the reliability and working efficiency of the motor.

[0098] In the present invention, the term "plurality" refers to two or more than two, 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.

[0099] 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 present invention. 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.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotor assembly, characterized in that: include: Rotor core assembly; A balancing block is installed at an end of the rotor core assembly; A wind shield is installed on the rotor core assembly, the wind shield and the balancing block are located on the same side of the rotor core assembly, and the wind shield includes: A wind shield body, wherein at least a portion of the balancing weight is located within the wind shield body; At least two hanging ears are connected to a side of the wind cover body facing the rotor core assembly, any one of the hanging ears protrudes from the wind cover body, and the hanging ears are connected to the rotor core assembly.

2. The rotor assembly according to claim 1, characterized in that Any of the mounting ears comprises: A connecting plate connected to the wind cover body and extending in a direction toward the rotor core assembly; The mounting plate is connected to one end of the connecting plate away from the wind cover body. The mounting plate is fitted with the end surface of the rotor core assembly and can be mounted on the rotor core assembly.

3. The rotor assembly according to claim 2, characterized in that: The mounting plate extends in a direction toward the axial center of the rotor core assembly.

4. The rotor assembly according to claim 2, characterized in that: Any of the mounting plates has a first mounting hole, the wind shield body has at least two second mounting holes, the second mounting holes are arranged in one-to-one correspondence with the first mounting holes, and the rotor assembly further includes: At least two first connecting members, wherein the first connecting members sequentially pass through the corresponding second mounting holes and the first mounting holes to be connected to the rotor core assembly.

5. The rotor assembly according to claim 4, characterized in that: The wind shield main body comprises: A cover body, wherein the hanging ears are connected to the cover body; The end plate is connected to an end of the cover body away from the hanging ear, and the second mounting hole is arranged on the end plate.

6. The rotor assembly according to claim 5, characterized in that The end plate has a symmetry axis, and at least two of the hanging ears are symmetrically arranged relative to the symmetry axis.

7. The rotor assembly according to claim 6, characterized in that The end plate is further provided with at least two third mounting holes, and the third mounting holes are arranged corresponding to the balancing block. The rotor assembly further includes: At least two second connecting members, any of which passes through the corresponding third mounting hole and connects the balancing block to the rotor core assembly.

8. The rotor assembly according to claim 7, characterized in that At least two of the third mounting holes are symmetrically arranged relative to the symmetry axis.

9. The rotor assembly according to claim 7, characterized in that: The third mounting hole and the second mounting hole are respectively close to two ends of the end plate.

10. The rotor assembly according to claim 5, characterized in that The end plate is provided with a weight-reducing hole.

11. The rotor assembly according to any one of claims 1 to 10, characterized in that: The hanging ear is integrally formed with the wind shield main body.

12. A motor, characterized in that: include: A rotor assembly as claimed in any one of claims 1 to 11.

13. A compressor, characterized in that: include: The electric machine as claimed in claim 12.

14. The compressor according to claim 13, characterized in that Also includes: A crankshaft passes through the wind cover of the rotor assembly and is connected to the rotor core assembly of the rotor assembly.

15. An air conditioner, characterized in that: include: A compressor as claimed in claim 13 or 14.

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