Rotor, motor, compressor and air conditioner

Abstract

The utility model provides a rotor, a motor, a compressor and an air conditioner. The rotor comprises a rotor iron core; a plurality of magnets attached to the rotor core in the circumferential direction of the rotor core; and the first end cover is installed at the first end of the rotor iron core, the first end cover is provided with a plurality of first observation ports, the plurality of first observation ports are arranged at the edge of the first end cover at intervals along the circumferential direction of the first end cover, and at least one part of any magnet is exposed out of the first observation ports. The first observation openings are formed in the edge of the first end cover, so that the first observation openings cannot be shielded by other parts in the rotor, an operator can check all magnets through the multiple first observation openings, the problem that the magnets are neglected to be installed or the magnets are not installed at the correct positions is avoided, and the installation efficiency is improved. And the difficulty of checking the rotor by an operator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household electrical appliances, and particularly relates to a rotor, a motor, a compressor and an air conditioner. BACKGROUND

[0002] In the motor rotor of the air conditioner compressor in the prior art, when the end cover is installed at the end of the rotor core, the end cover will shield part of the magnets installed on the rotor core, thereby causing the operator to be unable to observe all the magnets, which easily leads to the phenomenon of magnet missing installation. SUMMARY

[0003] The utility model is at least one of the prior art or related technical problems.

[0004] Therefore, the first purpose of the utility model is to provide a rotor.

[0005] The second purpose of the utility model is to provide a motor.

[0006] The third purpose of the utility model is to provide a compressor.

[0007] The fourth purpose of the utility model is to provide an air conditioner.

[0008] In order to achieve at least one of the above purposes, according to the first aspect of the utility model, a rotor is provided, comprising: a rotor core; a plurality of magnets installed on the rotor core along the circumference of the rotor core; a first end cover installed on the first end of the rotor core, the first end cover having a plurality of first observation openings, the plurality of first observation openings being arranged on the edge of the first end cover along the circumference of the first end cover, and at least part of any magnet being exposed to the first observation opening.

[0009] The rotor provided in the present application comprises a rotor core, a plurality of magnets and a first end cover, wherein the rotor core has a plurality of mounting holes, the plurality of magnets are respectively installed in the corresponding mounting holes, and the plurality of magnets are installed in the mounting holes on the rotor core along the circumference of the rotor core. Along the axial direction of the rotor core, the two ends of the rotor core are respectively the first end of the rotor core and the second end of the rotor core, and the plurality of magnets are exposed to the first end of the rotor core. The first end cover is installed on the first end of the rotor core, and in order to facilitate the operator to observe the magnets, a plurality of first observation openings are arranged on the first end cover.

[0010] Understandably, the operator needs to check the installation of the magnets when assembling the rotor to avoid the phenomenon of missing magnets. When the first end cover is installed at the first end of the rotor core, the first end cover will block the end face of the first end of the rotor core. In order to enable the operator to check the installation of the magnets when the first end cover is installed on the rotor core, the application sets a plurality of first observation ports on the first end cover. Specifically, a plurality of first observation ports are arranged at the edge of the first end cover along the circumference of the first end cover, and a part of any magnet is exposed to the first observation port. Since the first observation port is arranged at the edge of the first end cover, the first observation port will not be blocked by other components in the rotor, so that the operator can check all the magnets through the plurality of first observation ports to avoid the problem of missing magnets or magnets not installed in the correct position, thereby reducing the difficulty of the operator to check the rotor.

[0011] According to the rotor of the utility model above, the following distinguished technical features can also be had:

[0012] In some technical solutions, optionally, the first end cover further has a plurality of second observation ports, the plurality of second observation ports are sequentially arranged along the circumference of the first end cover, the distance between the center of the second observation port and the center of the first end cover is less than the distance between the center of the first observation port and the center of the first end cover, and at least part of the plurality of magnets is exposed to the second observation port.

[0013] In this technical solution, the structure of the first end cover is further limited. The first end cover further has a plurality of second observation ports for observing the magnets. Specifically, the end of the magnet away from the center of the rotor core is the first end of the magnet, and the first end of any magnet is exposed to the first observation port. The end of the magnet close to the center of the rotor core is the second end of the magnet, and the operator can observe the second end of at least part of the plurality of magnets through the second observation port. The plurality of second observation ports are sequentially arranged along the circumference of the first end cover, and the distance between the center of the second observation port and the center of the first end cover is less than the distance between the center of the first observation port and the center of the first end cover. In this way, the second end of the magnet close to the center of the rotor core is exposed to the second observation port, and the operator can more comprehensively observe the magnet, not only to determine whether the phenomenon of missing magnets occurs, but also to determine whether the magnet is installed in the correct position.

[0014] In some technical solutions, optionally, along the circumference of the first end cover, any second observation port is located between two adjacent first observation ports.

[0015] In the technical solution, the relative positions between the first observation openings and the second observation openings are limited. Any second observation opening is located between two adjacent first observation openings along the circumference of the first end cover. The line between the center of any second observation opening and the center of the rotor core is a first line, the lines between the centers of the two first observation openings adjacent to the second observation opening and the center of the rotor core are second lines, and the first line is located between the two second lines. The magnets are installed obliquely on the rotor core, that is, the extension direction of the magnets has an angle with the radial direction of the rotor core. By arranging the second observation openings between the two adjacent first observation openings along the circumference of the first end cover, the positions of the second observation openings can be made to correspond to the positions of the second ends of the magnets, so that the operator can observe the second ends of the magnets through the second observation openings, and the operator can observe different positions of the same magnet to determine whether the installation position of the magnet is correct.

[0016] In some technical solutions, the rotor further comprises: a first balance block, installed on the side of the first end cover away from the rotor core.

[0017] In the technical solution, the structure of the rotor is further limited. The rotor further comprises a first balance block, which is used to keep the rotor balanced during rotation. Specifically, the rotor is used in a motor, and the motor comprises a crankshaft connected to the rotor and driving the rotor to rotate. Since the crankshaft is an eccentric structure, the rotor will appear eccentric when the crankshaft rotates, which will cause the rotor to be unstable. In order to improve the stability of the rotor, a first balance block is installed on the first end cover, specifically, the first balance block is installed on the side of the first end cover away from the rotor core, and the first balance block is close to the side of the first end cover. In this way, the center of gravity of the rotor can be adjusted, so that the center of gravity of the rotor is close to the axis of the rotor, and the rotor is kept balanced during rotation, improving the stability of the rotor.

[0018] In some technical solutions, the first balance block avoids the first observation openings and blocks part of the second observation openings.

[0019] In the technical solution, the positional relationship between the first balance block and the first observation openings is limited. The first balance block is away from the edge of the first cover body, and the first balance block avoids any first observation opening, so that the first balance block does not block the first observation openings, and the user can observe all the magnets through the first observation openings. And the first balance block blocks part of the second observation openings, so that the first balance block can be arranged at an appropriate position to improve the balancing effect of the first balance block.

[0020] In some embodiments, the first end cover comprises: a cover plate; a flange connected to the edge of the cover plate, the flange extending in the direction towards the rotor core, the first observation port is arranged at the edge joint of the cover plate and the flange, and the second observation port is arranged on the cover plate and away from the edge of the cover plate.

[0021] In the technical solution, the structure of the first end cover is limited. The first end cover comprises a cover plate and a flange, the flange is connected to the edge of the cover plate and extends in the direction towards the rotor core, and the flange is a cylindrical structure, when the first end cover is installed on the end of the rotor core, the flange covers the circumferential side of the rotor core. In this way, on the one hand, the stability of the installation of the first end cover can be improved, and on the other hand, the protection effect of the first end cover on the rotor core can be improved.

[0022] Further, the first observation port is arranged at the edge joint of the cover plate and the flange, so that the first balance block can avoid shielding the first observation port, so as to facilitate observing all the magnets through the first observation port. The second observation port is arranged on the cover plate and away from the edge of the cover plate, so as to facilitate observing the end of the magnet close to the center of the rotor core through the second observation port, so that the operator can more comprehensively observe the magnet.

[0023] In some embodiments, the plurality of first observation ports are uniformly distributed along the circumference of the first end cover, and the plurality of second observation ports are uniformly distributed along the circumference of the first end cover.

[0024] In the technical solution, the arrangement of the plurality of first observation ports and the plurality of second observation ports is limited. Specifically, the plurality of first observation ports are uniformly distributed along the circumference of the first end cover, and the plurality of second observation ports are uniformly distributed along the circumference of the first end cover. In this way, the plurality of first observation ports and the plurality of second observation ports can be adapted to the arrangement of the plurality of magnets, so as to facilitate observing each magnet through the first observation port and the second observation port.

[0025] In some embodiments, the rotor further comprises: a plurality of first connecting members, the first connecting members being used for connecting the first end cover to the rotor core.

[0026] In the technical solution, the structure of the rotor is further limited. The rotor further comprises a plurality of first connecting members, the first connecting members being used for connecting the first end cover to the rotor core. Specifically, any first connecting member penetrates the cover plate of the first end cover and is connected to the rotor core, thereby realizing the connection of the first end cover and the rotor core. The first connecting member can be a rivet.

[0027] In a possible technical solution, the plurality of first connecting members are symmetrically arranged relative to the axis of the cover plate, so that the stress of each part of the first end cover is balanced, thereby ensuring that the first end cover is firmly connected to the rotor core.

[0028] In some embodiments, the rotor further comprises a second end cover installed at the second end of the rotor core, and the second end cover covers any magnet.

[0029] In some embodiments, the rotor further comprises a second end cover installed at the second end of the rotor core, and the second end cover covers any magnet.

[0030] In some embodiments, the rotor further comprises a second end cover installed at the second end of the rotor core, and the second end cover covers any magnet.

[0031] In some embodiments, the rotor further comprises a second end cover installed at the second end of the rotor core, and the second end cover covers any magnet.

[0032] In some embodiments, the rotor further comprises a second end cover installed at the second end of the rotor core, and the second end cover covers any magnet.

[0033] In some embodiments, the rotor further comprises a second end cover installed at the second end of the rotor core, and the second end cover covers any magnet.

[0034] In some embodiments, the rotor further comprises a second end cover installed at the second end of the rotor core, and the second end cover covers any magnet.

[0035] In some embodiments, the rotor is used in an electric machine, the electric machine comprises a crankshaft configured to drive the rotor to rotate, the first end cover is provided with a first shaft hole, the second end cover is provided with a second shaft hole, and the first shaft hole and the second shaft hole are configured to install the crankshaft.

[0036] In the technical solution, the structure of the first end cover and the second end cover is further limited. The first end cover and the second end cover both have a structure for mounting the crankshaft. Specifically, the rotor proposed in the application is used in a motor, and the motor includes a crankshaft that can be connected to the rotor and drive the rotor to rotate. In order to enable the crankshaft to be connected to the rotor, the first end cover is provided with a first shaft hole, and the second end cover is provided with a second shaft hole. The crankshaft passes through the first shaft hole and the second shaft hole in sequence to be inserted into the rotor, so that the crankshaft is connected to the rotor core of the rotor.

[0037] By providing the first shaft hole on the first end cover and the second shaft hole on the second end cover, the crankshaft can be mounted and positioned through the first shaft hole and the second shaft hole, so that the crankshaft can pass through the rotor to realize the connection of the crankshaft and the rotor.

[0038] The second aspect of the utility model further proposes a motor, comprising: the rotor proposed in the first aspect of the utility model; a stator has a rotor cavity, and the rotor is located in the rotor cavity; a crankshaft is connected to the rotor, and the crankshaft can drive the rotor to rotate relative to the stator.

[0039] The application proposes a motor, and the motor includes a rotor, a stator and a crankshaft. The stator has a rotor cavity, the rotor is rotatably installed in the rotor cavity, the crankshaft is connected to the rotor, and the crankshaft can drive the rotor to rotate relative to the stator, so that the motor can work and run.

[0040] The motor provided in the second aspect of the utility model has all the beneficial effects of the rotor because it includes the rotor proposed in the first aspect of the utility model.

[0041] The third aspect of the utility model further proposes a compressor, which includes the motor proposed in the second aspect of the utility model.

[0042] The compressor provided in the third aspect of the utility model has all the beneficial effects of the motor because it includes the motor proposed in the second aspect of the utility model.

[0043] The fourth aspect of the utility model further proposes an air conditioner, which includes the compressor proposed in the third aspect of the utility model.

[0044] The air conditioner provided in the fourth aspect of the utility model has all the beneficial effects of the compressor because it includes the compressor proposed in the third aspect of the utility model.

[0045] The additional aspects and advantages of the utility model will become apparent in the following description part or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0046] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, of which:

[0047] Figure 1 A structure diagram of a rotor of one embodiment of the present application is shown.

[0048] Figure 2 A structure diagram of a rotor in direction A is shown. Figure 1

[0049] Figure 3 A structure diagram of a rotor in direction B is shown. Figure 1

[0050] Figure 4 A structure diagram of a first end cover of one embodiment of the present application is shown.

[0051] Figure 5 A structure diagram of a first end cover of one embodiment of the present application is shown.

[0052] Corresponding relationship between reference signs and component names in the drawings is as follows: Figures 1 to 5

[0053] 100 rotor, 110 rotor core, 120 magnet, 130 first end cover, 131 first observation port, 132 second observation port, 133 cover plate, 134 flange, 135 first shaft hole, 140 first balance block, 150 first connecting piece, 160 second end cover, 161 second shaft hole, 170 second balance block, 180 second connecting piece. DETAILED DESCRIPTION

[0054] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described in detail below with reference to the 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.

[0055] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0056] The following description refers to the accompanying drawings that show embodiments of the present application. Figures 1 to 5 The rotor 100, motor, compressor and air conditioner provided according to some embodiments of the present application are described below.

[0057] In one embodiment according to the present application, as Figure 1 , Figure 2 ,​​​Figure 4 and Figure 5 As shown in the drawings, the utility model discloses a first aspect, proposes a rotor 100, including: rotor core 110, a plurality of magnets 120 are installed to rotor core 110 along the circumference of rotor core 110, first end cover 130 is installed to the first end of rotor core 110, first end cover 130 has a plurality of first observation port 131, a plurality of first observation port 131 are spaced apart to the edge of first end cover 130 along the circumference of first end cover 130, and at least a part of any magnet 120 is exposed to first observation port 131.

[0058] The rotor 100 provided in the application includes the rotor core 110, the plurality of magnets 120 and the first end cover 130, wherein the rotor core 110 has a plurality of mounting holes, the plurality of magnets 120 are respectively installed in the corresponding mounting holes, and the plurality of magnets 120 are installed in the mounting holes on the rotor core 110 along the circumference of the rotor core 110. Along the axial direction of the rotor core 110, the two ends of the rotor core 110 are respectively the first end of the rotor core 110 and the second end of the rotor core 110, and the plurality of magnets 120 are exposed to the first end of the rotor core 110. The first end cover 130 is installed at the first end of the rotor core 110. In order to facilitate the operator to observe the magnet 120, a plurality of first observation ports 131 are arranged on the first end cover 130.

[0059] Understandably, when the operator assembles the rotor 100, the operator needs to check the installation of the magnet 120 to avoid the phenomenon that the magnet 120 is missing. When the first end cover 130 is installed at the first end of the rotor core 110, the first end cover 130 will block the end face of the first end of the rotor core 110. In order to enable the operator to check the installation of the magnet 120 when the first end cover 130 is installed on the rotor core 110, a plurality of first observation ports 131 are arranged on the first end cover 130. Specifically, a plurality of first observation ports 131 are spaced apart to the edge of the first end cover 130 along the circumference of the first end cover 130, and a part of any magnet 120 is exposed to the first observation port 131. Since the first observation port 131 is arranged at the edge of the first end cover 130, the first observation port 131 will not be blocked by other components in the rotor 100, so that the operator can check all the magnets 120 through the plurality of first observation ports 131 to avoid the problem that the magnet 120 is missing or the magnet 120 is not installed at the correct position, and the difficulty of the operator to check the rotor 100 is reduced.

[0060] In some embodiments, optionally, as Figure 2 , Figure 4 and Figure 5As shown, the first end cover 130 further has a plurality of second observation openings 132 arranged along the circumference of the first end cover 130, the distance between the center of the second observation opening 132 and the center of the first end cover 130 is less than the distance between the center of the first observation opening 131 and the center of the first end cover 130, and at least part of the plurality of magnets 120 are exposed to the second observation opening 132.

[0061] In this embodiment, the structure of the first end cover 130 is further defined. The first end cover 130 further has a plurality of second observation openings 132 for observing the magnets 120. Specifically, the end of the magnet 120 away from the center of the rotor core 110 is the first end of the magnet 120, and the first end of any magnet 120 is exposed to the first observation opening 131. The end of the magnet 120 close to the center of the rotor core 110 is the second end of the magnet 120, and the operator can observe the second end of at least part of the plurality of magnets 120 through the second observation opening 132. The plurality of second observation openings 132 are arranged along the circumference of the first end cover 130, and the distance between the center of the second observation opening 132 and the center of the first end cover 130 is less than the distance between the center of the first observation opening 131 and the center of the first end cover 130. In this way, the second end of the magnet 120 close to the center of the rotor core 110 is exposed to the second observation opening 132, so that the operator can more comprehensively observe the magnet 120, not only to determine whether the magnet 120 is missing, but also to determine whether the magnet 120 is installed at the correct position.

[0062] In some embodiments, as shown in Figure 2 and Figure 5 along the circumference of the first end cover 130, any second observation opening 132 is located between two adjacent first observation openings 131.

[0063] In this embodiment, the relative positions between the first observation port 131 and the second observation port 132 are defined. Along the circumference of the first end cover 130, any second observation port 132 is located between two adjacent first observation ports 131. The line between the center of any second observation port 132 and the center of the rotor core 110 is the first line, the lines between the centers of the two first observation ports 131 adjacent to the second observation port 132 and the center of the rotor core 110 are the second lines, and the first line is located between the two second lines. The magnet 120 is installed on the rotor core 110 at an angle, i.e., the extension direction of the magnet 120 and the radial direction of the rotor core 110 form an angle. By arranging the second observation port 132 between the two adjacent first observation ports 131 along the circumference of the first end cover 130, the position of the second observation port 132 can be made to correspond to the position of the second end of the magnet 120, so that the operator can observe the second end of the magnet 120 through the second observation port 132, and the operator can observe different positions of the same magnet 120 to determine whether the installation position of the magnet 120 is correct.

[0064] In some embodiments, as shown in Figure 1 and Figure 2 , the rotor 100 further comprises a first balance block 140 installed on the side of the first end cover 130 away from the rotor core 110.

[0065] In this embodiment, the structure of the rotor 100 is further defined. The rotor 100 further comprises a first balance block 140 for keeping the rotor 100 balanced during rotation. Specifically, the rotor 100 is used in a motor, and the motor comprises a crankshaft connected to the rotor 100 and driving the rotor 100 to rotate. Since the crankshaft is an eccentric structure, the rotor 100 will exhibit eccentricity when the crankshaft rotates, which will cause the rotor 100 to be unstable. In order to improve the stability of the rotor 100, the first balance block 140 is installed on the first end cover 130, specifically, the first balance block 140 is installed on the side of the first end cover 130 away from the rotor core 110, and the first balance block 140 is close to the side of the first end cover 130. In this way, the center of gravity of the rotor 100 can be adjusted so that the center of gravity of the rotor 100 is close to the axis of the rotor 100, and the rotor 100 is kept balanced during rotation, improving the stability of the rotor 100.

[0066] In some embodiments, as shown in Figure 2 , the first balance block 140 avoids the first observation port 131 and blocks part of the second observation port 132.

[0067] In this embodiment, the positional relationship between the first balance block 140 and the first observation port 131 is defined. The first balance block 140 is away from the edge of the first cover body, and the first balance block 140 avoids any first observation port 131, so that the first balance block 140 can avoid shielding the first observation port 131, and the user can observe all the magnets 120 through the first observation port 131. And the first balance block 140 shields part of the second observation port 132, so that the first balance block 140 can be arranged in place to improve the balance effect of the first balance block 140.

[0068] In some embodiments, optionally, as shown in Figure 4 and Figure 5 The first end cover 130 includes a cover plate 133, and a flange 134 connected to the edge of the cover plate 133, the flange 134 extends in the direction towards the rotor core 110, the first observation port 131 is arranged at the edge of the cover plate 133 and the flange 134, and the second observation port 132 is arranged on the cover plate 133 and away from the edge of the cover plate 133.

[0069] In this embodiment, the structure of the first end cover 130 is defined. The first end cover 130 includes a cover plate 133 and a flange 134 connected to the edge of the cover plate 133 and extending in the direction towards the rotor core 110, and the flange 134 is a cylindrical structure, and when the first end cover 130 is installed at the end of the rotor core 110, the flange 134 covers the circumferential side of the rotor core 110. In this way, on the one hand, the stability of the installation of the first end cover 130 can be improved, and on the other hand, the protection effect of the first end cover 130 on the rotor core 110 can be improved.

[0070] Further, the first observation port 131 is arranged at the edge of the cover plate 133 and the flange 134, so that the first balance block 140 can avoid shielding the first observation port 131, so as to observe all the magnets 120 through the first observation port 131. The second observation port 132 is arranged on the cover plate 133 and away from the edge of the cover plate 133, so as to observe the end of the magnet 120 close to the center of the rotor core 110 through the second observation port 132, so that the operator can more comprehensively observe the magnet 120.

[0071] In some embodiments, optionally, a plurality of first observation ports 131 are uniformly distributed along the circumference of the first end cover 130, and a plurality of second observation ports 132 are uniformly distributed along the circumference of the first end cover 130.

[0072] In this embodiment, the arrangement of the plurality of first observation openings 131 and the plurality of second observation openings 132 is limited. Specifically, the plurality of first observation openings 131 are evenly distributed along the circumference of the first end cover 130, and the plurality of second observation openings 132 are evenly distributed along the circumference of the first end cover 130. In this way, the plurality of first observation openings 131 and the plurality of second observation openings 132 can be adapted to the arrangement of the plurality of magnets 120, so as to facilitate observation of each magnet 120 through the first observation openings 131 and the second observation openings 132.

[0073] In some embodiments, as shown in Figure 2 The rotor 100 further comprises a plurality of first connecting members 150, which are used to connect the first end cover 130 to the rotor core 110.

[0074] In this embodiment, the structure of the rotor 100 is further limited. The rotor 100 further comprises a plurality of first connecting members 150, which are used to connect the first end cover 130 to the rotor core 110. Specifically, any first connecting member 150 penetrates the cover plate 133 of the first end cover 130 and is connected to the rotor core 110, thereby achieving the connection of the first end cover 130 to the rotor core 110. The first connecting member 150 can be a rivet.

[0075] In a possible embodiment, the plurality of first connecting members 150 are symmetrically arranged relative to the axis of the cover plate 133, so that the force on each part of the first end cover 130 is balanced, thereby ensuring that the first end cover 130 is firmly connected to the rotor core 110.

[0076] In some embodiments, as shown in Figure 1 and Figure 3 The rotor 100 further comprises a second end cover 160, which is installed at the second end of the rotor core 110 and shields any magnet 120.

[0077] In this embodiment, the structure of the rotor 100 is further defined. The rotor 100 further comprises a second end cover 160, which is installed at the second end of the rotor core 110, so that the second end of the rotor core 110 can be protected by the second end cover 160, further improving the reliability of the rotor 100. Further, the second end cover 160 blocks any magnet 120, that is, the second end cover 160 is a closed cover, and no opening structure is provided on the second end cover 160. Understandably, the operator can observe each magnet 120 through the first observation port 131 provided on the first cover, so it is not necessary to observe the magnet 120 through the side of the second end cover 160. Moreover, by blocking the magnet 120 with the second end cover 160, the protection effect of the second end cover 160 can be improved, so that the second end cover 160 can protect the rotor core 110 and the magnet 120.

[0078] In some embodiments, optionally, as shown in Figure 1 and Figure 3 , the rotor 100 further comprises a second balance block 170, which is installed at the side of the second end cover 160 away from the rotor core 110.

[0079] In this embodiment, the structure of the rotor 100 is further defined. The rotor 100 further comprises a second balance block 170, which is used to keep the rotor 100 balanced during rotation. Specifically, the second balance block 170 is installed at the side of the second end cover 160 away from the rotor core 110, and the second balance block 170 is close to the side of the first end cover 130. In this way, the center of gravity of the rotor 100 can be adjusted by the second balance block 170, the eccentric state of the crankshaft is balanced by the second balance block 170, the center of gravity of the rotor 100 is close to the axis of the rotor 100, and the rotor 100 is kept balanced during rotation, improving the stability of the rotor 100.

[0080] In some embodiments, optionally, as shown in Figure 3 , the rotor 100 further comprises a plurality of second connecting pieces 180, which are used to connect the second end cover 160 to the rotor core 110.

[0081] In this embodiment, the structure of the rotor 100 is further defined. The rotor 100 further comprises a plurality of second connecting pieces 180, which are used to connect the second end cover 160 to the rotor core 110. Specifically, any second connecting piece 180 passes through the second end cover 160 and is connected to the rotor core 110, thereby realizing the connection of the second end cover 160 and the rotor core 110. Wherein, the second connecting piece 180 can be a rivet.

[0082] In one possible embodiment, the plurality of second connecting members 180 are symmetrically arranged relative to the axis of the second end cover 160, so as to balance the force applied to each part of the second end cover 160, thereby ensuring that the second end cover 160 is firmly connected to the rotor core 110.

[0083] In some embodiments, as shown in Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the rotor 100 is used in an electric machine, the electric machine includes a crankshaft, the crankshaft is used to drive the rotor 100 to rotate, the first end cover 130 is provided with a first shaft hole 135, and the second end cover 160 is provided with a second shaft hole 161, the first shaft hole 135 and the second shaft hole 161 are used to mount the crankshaft.

[0084] In this embodiment, the structure of the first end cover 130 and the second end cover 160 is further limited. Both the first end cover 130 and the second end cover 160 have a structure for mounting the crankshaft. Specifically, the rotor 100 proposed in the present application is used in an electric machine, the electric machine includes a crankshaft, the crankshaft can be connected to the rotor 100 and drive the rotor 100 to rotate. In order to enable the crankshaft to be connected to the rotor 100, the present application is provided with a first shaft hole 135 on the first end cover 130, and a second shaft hole 161 on the second end cover 160, the crankshaft passes through the first shaft hole 135 and the second shaft hole 161 in sequence to be inserted into the rotor 100, so as to connect the crankshaft with the rotor core 110 of the rotor 100.

[0085] By providing the first shaft hole 135 on the first end cover 130 and the second shaft hole 161 on the second end cover 160, the crankshaft can be mounted and positioned through the first shaft hole 135 and the second shaft hole 161, so that the crankshaft can pass through the rotor 100, realizing the connection between the crankshaft and the rotor 100.

[0086] The second aspect of the present application also proposes an electric machine, which includes: the rotor 100 proposed in the first aspect of the present application; a stator, having a rotor cavity, the rotor 100 being located in the rotor cavity; a crankshaft, connected to the rotor 100, the crankshaft being capable of driving the rotor 100 to rotate relative to the stator.

[0087] The present application proposes an electric machine, which includes a rotor 100, a stator and a crankshaft. The stator has a rotor cavity, the rotor 100 is rotatably mounted in the rotor cavity, the crankshaft is connected to the rotor 100, and the crankshaft can drive the rotor 100 to rotate relative to the stator, so that the electric machine can work and run.

[0088] The electric machine provided in the second aspect of the present application has all the beneficial effects of the rotor 100, because it includes the rotor 100 proposed in the first aspect of the present application.

[0089] The third aspect of the utility model further provides a compressor, including the motor of the second aspect of the utility model.

[0090] The compressor provided by the third aspect of the utility model has all the beneficial effects of the motor.

[0091] The fourth aspect of the utility model further provides an air conditioner, including the compressor of the third aspect of the utility model.

[0092] The air conditioner provided by the fourth aspect of the utility model has all the beneficial effects of the compressor.

[0093] In the utility model, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connecting" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0094] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present application, the illustrative description 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.

[0095] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rotor characterized by, Comprising: a rotor core; a plurality of magnets mounted to the rotor core along a circumferential direction of the rotor core; a first end cover mounted to a first end of the rotor core, the first end cover having a plurality of first viewing ports arranged along a circumferential direction of the first end cover at edges of the first end cover, at least a portion of any of the magnets being exposed to the first viewing ports.

2. The rotor of claim 1, wherein: the first end cover further has a plurality of second viewing ports arranged along the circumferential direction of the first end cover in sequence, a distance between a center of the second viewing ports and a center of the first end cover being less than a distance between a center of the first viewing ports and the center of the first end cover, at least a portion of the plurality of magnets being exposed to the second viewing ports.

3. The rotor of claim 2, wherein: along the circumferential direction of the first end cover, any of the second viewing ports is located between two adjacent first viewing ports.

4. The rotor of claim 2, wherein Further comprising: a first balance block mounted to a side of the first end cover away from the rotor core.

5. The rotor of claim 4, wherein: the first balance block avoids the first viewing ports and blocks a portion of the second viewing ports.

6. The rotor of claim 2, wherein the first end cover comprises: a cover plate; a flange connected to edges of the cover plate, the flange extending in a direction towards the rotor core, the first viewing ports being arranged at edges of the cover plate where the cover plate is connected to the flange, the second viewing ports being arranged at the cover plate away from edges of the cover plate.

7. The rotor of claim 2, wherein: the plurality of first viewing ports are uniformly distributed along the circumferential direction of the first end cover, the plurality of second viewing ports are uniformly distributed along the circumferential direction of the first end cover.

8. The rotor of any one of claims 1 to 7, wherein, Further comprising: a plurality of first connectors for connecting the first end cover to the rotor core.

9. The rotor of any one of claims 1 to 7, wherein, Further comprising: a second end cover mounted to a second end of the rotor core, the second end cover blocking any of the magnets.

10. The rotor of claim 9, wherein Further comprising: a second balance block mounted to a side of the second end cover away from the rotor core.

11. The rotor of claim 9, wherein Further comprising: a plurality of second connectors for connecting the second end cover to the rotor core.

12. The rotor of claim 9, wherein: the rotor is used in an electric machine, the electric machine comprising a crankshaft for driving the rotor to rotate, the first end cover is provided with a first shaft hole, the second end cover is provided with a second shaft hole, the first shaft hole and the second shaft hole are used for mounting the crankshaft.

13. An electric machine characterized by Comprising: the rotor of any of claims 1 to 12; a stator having a rotor cavity, the rotor being located in the rotor cavity; a crankshaft connected to the rotor, the crankshaft being capable of driving the rotor to rotate relative to the stator.

14. A compressor characterized by, Comprising: the electric machine of claim 13.

15. An air conditioner characterized by comprising: Comprising: the compressor of claim 14.

Images