Rotor mechanism and generator

Abstract

The utility model discloses a rotor mechanism and a generator. The rotor mechanism comprises a rotor core, a rotating shaft and a connecting assembly. And a winding coil is wound in the rotor core. The rotating shaft is sleeved in the rotor core. The connecting assembly comprises a wire part, a rotor pressing ring and a fixing part. The rotor pressing ring sleeves the rotating shaft and abuts against the side, close to the rotating shaft, of the winding coil. The wire part is connected between the rotating shaft and the rotor pressing ring through the fixing part and is connected with the winding coil. The problems that the fixing mode of the wire part affects the air inlet area of the rotor, the fixing stability is poor, and the wire part is prone to falling off and even being thrown out are solved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine units, and in particular, to a rotor mechanism and a generator. Background Art

[0002] The rotor lead mainly undertakes the function of connecting the internal winding of the generator rotor with the slip ring at the shaft end. Traditional rotor leads are usually cable wires or self-made copper bars with insulated outer packages. A doubly-fed wind turbine needs to connect the three-phase windings of the rotor to the frequency converter through the slip rings and brushes on the rotor and then connect to the power grid. Wire components such as the neutral ring, inter-pole wires, and rotor leads are key components to achieve this function.

[0003] In the prior art, the rotor lead is fixed through a support ring on the shaft and then connected to the winding coil of the rotor. The inter-pole wires and the neutral ring are placed on the shaft. The upper flange of the support ring affects the air intake area of the rotor, which will reduce the overall heat dissipation effect of the rotor. Moreover, the fixing structure is relatively complex and the fixing strength is insufficient. The heat generated during the high-speed rotation of the rotor will cause the insulation components to fail, and in severe cases, it will even cause problems such as the shedding and throwing out of each wire component, posing a great safety hazard. It can be seen that the fixing method of the existing wire components not only affects the air intake area of the rotor, but also has poor fixing stability, is easy to fall off or even be thrown out. Utility Model Content

[0004] The main purpose of the present application is to provide a rotor mechanism and a generator to solve the problems mentioned in the background art that the fixing method of the wire components not only affects the air intake area of the rotor, but also has poor fixing stability, is easy to fall off or even be thrown out.

[0005] According to one aspect of the present application, a rotor mechanism is provided, including:

[0006] A rotor core, in which a winding coil is wound;

[0007] A rotating shaft, which is sleeved inside the rotor core;

[0008] A connection assembly, the connection assembly includes a wire component, a rotor retaining ring, and a fixing component. The rotor retaining ring is sleeved on the rotating shaft and abuts against one side of the winding coil close to the rotating shaft. The wire component is connected between the rotating shaft and the rotor retaining ring through the fixing component and is connected to the winding coil.

[0009] Further, the wire component includes a rotor lead. An outlet cable is provided on the rotating shaft. The fixing component includes:

[0010] A wire fixing frame, along the radial direction of the rotating shaft, one end of the wire fixing frame is fixedly connected to the outer side wall of the rotating shaft, and the other end is fixedly connected to the rotor retaining ring;

[0011] A locking structure is provided on one side of the wire fixing frame close to the rotating shaft. One end of the rotor lead wire is connected to the winding coil, and the other end of the rotor lead wire and the lead-out cable are connected and locked to the wire fixing frame through the locking structure.

[0012] Further, the lead-out cable includes at least two, and at least two lead-out cables are respectively located on opposite sides of the rotor lead wire along the circumferential direction of the rotating shaft. The locking structure includes:

[0013] A wire fixing block, which includes at least two. At least two wire fixing blocks have a first position for connecting and clamping the rotor lead wire and at least two lead-out cables to the wire fixing frame, and a second position for separating the rotor lead wire and at least two lead-out cables, and the wire fixing block is connected to the wire fixing frame;

[0014] A first fastener for locking the wire fixing block in the first position or unlocking it to the second position.

[0015] Further, the first fastener includes at least two, and the wire fixing block includes:

[0016] A first connecting section, which abuts against the lead-out cable and squeezes and locks the lead-out cable to the rotor lead wire through at least one first fastener;

[0017] A second connecting section, which is located on the side of the first connecting section away from the rotor lead wire. The second connecting section is fixedly connected to the wire fixing frame through at least one first fastener.

[0018] Further, the wire fixing frame includes:

[0019] A main body part, one end of which is fixedly connected to one side of the rotor retaining ring close to the winding coil. Along the radial direction of the rotating shaft, the other end of the main body part extends to the rotating shaft and is fixedly connected to the rotating shaft. The rotor lead wire is located on the main body part;

[0020] An extension section, which is located at one end of the main body part close to the rotating shaft and protrudes from opposite sides of the main body part along the circumferential direction of the rotating shaft. The wire fixing block can move relative to the extension section in a direction close to or away from the rotor lead wire to a predetermined position, and the first fastener fixes the wire fixing block at the predetermined position.

[0021] Further, a first connection hole is provided on the extension section, a strip-shaped hole is provided on the wire fixing block, the length of the strip-shaped hole extends along the direction of approaching and departing from the rotor lead wire, and the first fastener sequentially passes through the strip-shaped hole and the first connection hole to fixedly connect the wire fixing block with the extension section.

[0022] Further, a predetermined gap exists between the rotor lead wire and the wire fixing frame, and the fixing component further includes:

[0023] An expansion body, which is filled in the predetermined gap;

[0024] A first binding band, which is wound and fixed around the outer periphery of the wire fixing frame, the expansion body, and the rotor lead wire.

[0025] Further, a convex rib is provided on the outer peripheral surface of the rotating shaft, the rotor retaining ring is sleeved on the outer periphery of the convex rib departing from the rotating shaft, along the axial direction of the rotating shaft, the rotor retaining ring at least partially extends outside the convex rib and has an installation gap with the rotating shaft, the wire fixing frame is fixedly connected to the end portion of the rotor retaining ring located outside the convex rib, the wire component further includes an inter-pole wire, and the fixing component further includes:

[0026] A crimping member, which crimps the inter-pole wire to the inner peripheral surface of the rotor retaining ring located outside the convex rib;

[0027] A second binding band, which winds and fixes the inter-pole wire and the rotor retaining ring.

[0028] Further, the wire component further includes a neutral ring, the neutral ring includes an annular main body portion and a second lead-out section, the crimping member also crimps the annular main body portion to the inner peripheral surface of the rotor retaining ring located outside the convex rib, and the annular main body portion is located on the side of the inter-pole wire close to the convex rib, the second lead-out section is located on the annular main body portion and extends out of the rotor retaining ring to be connected with the winding coil, and the fixing component further includes:

[0029] A third binding band, which winds and fixes the annular main body portion, the inter-pole wire, and the rotor retaining ring together.

[0030] On the other hand, the present application further provides a generator, which includes the rotor mechanism according to any one of the above technical solutions.

[0031] In the present application, the wire component is fixed between the rotor retaining ring and the rotating shaft through the fixing component of the connecting component. This can not only maximize the air intake area of the rotor mechanism, improve the heat dissipation effect of the rotor mechanism, but also strengthen the fixing strength of the wire component, and effectively reduce the risk of the lead wire falling off or being thrown out due to the centrifugal force generated by high-speed rotation, which is beneficial to improving the safety of the rotor mechanism. In addition, the rotor retaining ring has reliable stability, and the rotor retaining ring can provide a stable supporting effect for the fixing component, further ensuring the stability of the wire component. Therefore, the present application can improve the stability and insulation performance of the wire component while improving the heat dissipation effect of the rotor mechanism, reduce the failures caused by the falling off, throwing out or insulation failure of the wire component (such as at least one of the rotor lead wire, inter-pole wire, neutral ring, etc.), thereby reducing the failure rate of the rotor mechanism and improving the operating safety of the rotor mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0033] Figure 1 is a schematic structural diagram (I) of the rotor mechanism disclosed in the present application;

[0034] Figure 2 is Figure 1 an enlarged view of the P position in

[0035] Figure 3 is a schematic structural diagram (II) of the rotor mechanism disclosed in the present application;

[0036] Figure 4 is a schematic structural diagram of the rotating shaft disclosed in the present application;

[0037] Figure 5 is a schematic structural diagram of the wire fixing frame disclosed in the present application;

[0038] Figure 6 is a schematic structural diagram of the wire fixing block disclosed in the present application;

[0039] Figure 7 is an exploded schematic diagram of the rotor retaining ring disclosed in the present application;

[0040] Figure 8 is a schematic structural diagram of the connecting component disclosed in the present application.

[0041] Among them, the above-mentioned drawings include the following reference numerals:

[0042] 10. Rotor core; 11. Winding coil; 111. Connecting sleeve; 20. Rotating shaft; 21. Lead-out cable; 22. Shaft hole; 23. Rib; 30. Connecting component; 31. Rotor lead-out wire; 32. Rotor retaining ring; 321. First end ring; 322. Ring; 323. Second end ring; 3231. Third connecting hole; 324. Rib block; 3241. Fifth connecting hole; 33. Fixing component; 331. Wire fixing frame; 3311. Main body part; 3312. Extension section; 3313. First connecting hole; 3314. Fourth connecting hole; 332. Wire fixing block; 3321. First connecting section; 3322. Second connecting section; 3323. Second connecting hole; 3324. Slot; 333. First fastener; 334. Crimping part; 34. Inter-pole wire; 341. Arc section; 342. First lead-out section; 35. Neutral ring; 351. Ring-shaped main body part; 352. Second lead-out section. Detailed implementation manners

[0043] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0044] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0045] Unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, the numerical expressions and values do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

[0046] As Figures 1 to 8As shown in the figure, the present application provides a rotor mechanism, including a rotor core 10, a rotating shaft 20, and a connection assembly 30. A winding coil 11 is wound inside the rotor core 10. The rotating shaft 20 is sleeved inside the rotor core 10. The connection assembly 30 includes a wire component, a rotor retaining ring 32, and a fixing component 33. The rotor retaining ring 32 is sleeved on the rotating shaft 20 and abuts against one side of the winding coil 11 close to the rotating shaft 20. The wire component is connected between the rotating shaft 20 and the rotor retaining ring 32 through the fixing component 33, and one end of the rotor lead wire 31 is connected to the winding coil 11 and is connected to the winding coil 11. The wire component is an electronic component for the generator to connect the three-phase winding coil 11 to the power grid through a slip ring and a brush and a frequency converter. The wire component includes a rotor lead wire, an interpolar wire, a neutral ring, etc.

[0047] In this embodiment, by providing the fixing component 33, the wire component is fixed between the rotor retaining ring 32 and the rotating shaft 20. This can not only maximize the air intake area of the rotor mechanism and improve the heat dissipation effect of the rotor mechanism, but also strengthen the fixing strength of the wire component and effectively reduce the risk of the lead wire falling off or being thrown out due to the centrifugal force generated by high-speed rotation, which is beneficial to improving the safety of the rotor mechanism. In addition, the rotor retaining ring 32 has reliable stability, and the rotor retaining ring 32 can provide a stable supporting effect for the fixing component 33, further ensuring the stability of the wire component. Therefore, the present application can improve the heat dissipation effect of the rotor mechanism while improving the stability and insulation performance of the wire component, reduce failures caused by the wire component (such as at least one of the rotor lead wire, the interpolar wire, the neutral ring, etc.) falling off, being thrown out, or insulation failure, thereby reducing the failure rate of the rotor mechanism and improving the operation safety of the rotor mechanism.

[0048] As Figures 1 to 3As shown in the figure, further, the wire component includes a rotor lead wire 31. An outgoing cable 21 is arranged on the rotating shaft 20. The fixing component 33 includes a wire fixing frame 331 and a locking structure. Along the radial direction of the rotating shaft 20, one end of the wire fixing frame 331 is fixedly connected to the outer side wall of the rotating shaft 20, and the other end is fixedly connected to the rotor retaining ring 32. Both the rotating shaft 20 and the rotor retaining ring 32 have good stability. In this embodiment, both ends of the wire fixing frame 331 are respectively connected to the rotating shaft 20 and the rotor retaining ring 32, so that both ends of the wire fixing frame 331 along the radial direction of the rotating shaft 20 have good stability. Even when the rotor mechanism is in a high-speed rotation and vibration environment, the wire fixing frame 331 can still have good stability, which is beneficial to ensuring the stability of the rotor lead wire 31. The locking structure is arranged on one side of the wire fixing frame 331 close to the rotating shaft 20. One end of the rotor lead wire 31 is connected to the winding coil 11, and the other end of the rotor lead wire 31 and the outgoing cable 21 are connected and locked to the wire fixing frame 331 through the locking structure, realizing the firmness of the rotor lead wire 31 in the radial direction of the rotating shaft 20. The locking structure enables the rotor lead wire 31 and the outgoing cable 21 to be tightly and reliably connected and locked on the wire fixing frame 331, which can improve the stability of the connection between the rotor lead wire 31 and the outgoing cable 21 and ensure the reliability of the electrical connection between the rotor lead wire 31 and the outgoing cable 21. At the same time, such a setting can also reduce the electrical faults or safety hazards caused by the loosening of the connection between the rotor lead wire 31 and the outgoing cable 21, and further prevent the situation of the rotor lead wire 31 falling off or being thrown out. Meanwhile, the effective fixing of the rotor lead wire 31 can also reduce the wear of the insulating layer of the rotor lead wire 31 caused by vibration or friction, extend the service life of the rotor lead wire 31, further ensure the insulation performance of the rotor lead wire 31, and reduce the risk of faults caused by insulation failure.

[0049] Among them, three shaft holes 22 are provided on the rotating shaft 20. The three shaft holes 22 are arranged at intervals along the circumferential direction of the rotating shaft 20, and an outgoing cable 21 is arranged in each shaft hole 22. Correspondingly, there are also three groups of wire fixing frames 331 and rotor lead wires 31. The three groups of wire fixing frames 331 are fixed on the rotor retaining ring 32 along the circumferential direction of the rotating shaft 20. The three groups of rotor lead wires 31 are arranged at intervals along the circumferential direction of the rotating shaft 20 on the wire fixing frame 331, and the three groups of rotor lead wires 31 are arranged in one-to-one correspondence with the three shaft holes 22. One end of each rotor lead wire 31 is connected to the outgoing cable 21 in the corresponding shaft hole 22, and the other end is connected to the winding coil 11.

[0050] Further, the lead cables 21 connected to each rotor lead wire 31 include at least two, and the at least two lead cables 21 are respectively located on opposite sides of the rotor lead wire 31 along the circumferential direction of the rotating shaft 20. The locking structure includes a wire fixing block 332 and a first fastener 333. The wire fixing block 332 includes at least two pieces, and the at least two wire fixing blocks 332 have a first position for connecting and clamping the rotor lead wire 31 and the at least two lead cables 21 to the wire fixing frame 331, and a second position for separating the rotor lead wire 31 and the at least two lead cables 21. The wire fixing block 332 is connected to the wire fixing frame 331. The first fastener 333 locks the wire fixing block 332 in the first position or unlocks it to the second position. Specifically, the at least two wire fixing blocks 332 are respectively located on the side of the at least two lead cables 21 along the circumferential direction of the rotating shaft 20 away from the rotor lead wire 31. By adjusting the first fastener 333, the wire fixing block 332 can be moved towards the rotor lead wire 31 to connect and clamp the rotor lead wire 31 and the at least two lead cables 21. Alternatively, by adjusting the first fastener 333, the wire fixing block 332 can be moved away from the rotor lead wire 31 to separate the rotor lead wire 31 and the at least two lead cables 21. Under the action of the first fastener 333, the wire fixing block 332 can squeeze the lead cable 21 towards the rotor lead wire 31, ensuring the reliability and stability of the connection between the rotor lead wire 31 and the lead cable 21, and effectively preventing situations such as the rotor lead wire 31 falling off or being thrown out.

[0051] As Figure 6 shown, further, the first fastener 333 includes at least two, and the wire fixing block 332 includes a first connecting section 3321 and a second connecting section 3322. The first connecting section 3321 abuts against the lead cable 21, and the lead cable 21 is squeezed and locked onto the rotor lead wire 31 by at least one first fastener 333. The first connecting section 3321 can increase the contact area with the lead cable 21, making it more convenient to squeeze and lock the lead cable 21 onto the rotor lead wire 31. The first fastener 333 ensures the close contact between the lead cable 21 and the rotor lead wire 31, and further enhances the stability of the connection between the lead cable 21 and the rotor lead wire 31 through the locking force of the first fastener 333. Even in a high-speed rotation and vibration environment, the first fastener 333 can effectively ensure the reliability of the connection between the lead cable 21 and the rotor lead wire 31. The second connecting section 3322 is located on the side of the first connecting section 3321 away from the rotor lead wire 31. The second connecting section 3322 is fixedly connected to the wire fixing frame 331 by at least one first fastener 333. The second connecting section 3322 is fixedly connected to the wire fixing frame 331 by the first fastener 333 and cooperates with the first connecting section 3321, so as to radially fix the rotor lead wire 31 on the rotating shaft 20, and effectively prevent situations such as the rotor lead wire 31 falling off or being thrown out.

[0052] Wherein, a metal flat piece is arranged at the end of the lead-out cable 21. The metal flat piece can be attached to the side of the first connection section 3321 close to the lead-out cable 21 to ensure the stability of the connection between the first connection section 3321 and the lead-out cable 21. Such an arrangement can prevent the dislocation between the first connection section 3321 and the lead-out cable 21 caused by high-speed rotation, vibration, etc., and further ensure the reliability and stability of the connection between the lead-out cable 21 and the rotor lead wire 31. A second connection hole 3323 is arranged on the first connection section 3321. After the first fastener 333 passes through the second connection hole 3323, it abuts against the metal flat piece, and the lead-out cable 21 is squeezed and locked onto the rotor lead wire 31. In this embodiment, the first fastener 333 is a screw, and the lead-out cable 21 is squeezed and locked onto the rotor lead wire 31 by tightening the screw. The first fastener 333 can also adopt other fixing structures, and this embodiment does not make a unique limitation.

[0053] In this embodiment, the first connection section 3321 and the second connection section 3322 are arranged perpendicular to each other, and both the first connection section 3321 and the second connection section 3322 are plate-like structures. Such an arrangement can increase the support points of the wire fixing block 332, thereby enhancing the stability of the wire fixing block 332 and helping to ensure the stability of the rotor lead wire 31. In addition, such an arrangement also helps to disperse stress and reduce the stress concentration phenomenon of the wire fixing block 332, and can effectively prevent the fatigue failure and fracture of the wire fixing block 332 caused by long-term stress. The first connection section 3321 and the second connection section 3322 can be made of insulating materials. For example, the first connection section 3321 and the second connection section 3322 can be made of epoxy phenolic glass cloth laminated board.

[0054] As Figure 5 shown, further, the wire fixing frame 331 includes a main body portion 3311 and an extension section 3312. One end of the main body portion 3311 is fixedly connected to the side of the rotor retaining ring 32 close to the winding coil 11. Along the radial direction of the rotating shaft 20, the other end of the main body portion 3311 extends to the rotating shaft 20 and is fixedly connected to the rotating shaft 20, and the rotor lead wire 31 is located on the main body portion 3311. Along the radial direction of the rotating shaft 20, the wire fixing frame 331 can be stably supported on the rotating shaft 20 and the rotor retaining ring 32, and can ensure the stability of the wire fixing frame 331. At the same time, such an arrangement can also reduce the length of the wire fixing frame 331, reduce the occupied space of the wire fixing frame 331, and further increase the ventilation area inside the rotor core 10, which is beneficial to ensuring the ventilation effect of the rotor mechanism and providing a certain guarantee for the cooling of the rotor mechanism.

[0055] Specifically, a bent section is provided on the main body portion 3311. The bent section is provided on opposite sides of the main body portion 3311 along the radial direction of the rotating shaft 20. The bent section close to the shaft hole 22 is in contact with and fixedly connected to the outer side wall of the rotating shaft 20, and the bent section close to the rotor retaining ring 32 is fixedly connected to the rotor retaining ring 32.

[0056] The extension section 3312 is located at one end of the main body portion 3311 close to the rotating shaft 20 and protrudes from opposite sides of the main body portion 3311 along the circumferential direction of the rotating shaft 20. The wire fixing block 332 can move relative to the extension section 3312 to a predetermined position along the direction close to or away from the rotor lead wire 31, and the first fastener 333 fixes the wire fixing block 332 at the predetermined position. The extension section 3312 provides support and fixation for the wire fixing block 332, can provide a support surface for the wire fixing block 332, and ensures the stability of the wire fixing block 332. At the same time, the wire fixing block 332 can move to the predetermined position along a specific direction on the extension section 3312, enabling the wire fixing block 332 to accurately and flexibly move to the predetermined position for squeezing the lead cable 21 against the rotor lead wire 31, which is beneficial to enhancing the stability of the wire fixing block 332. Meanwhile, the predetermined position can be adjusted according to the actual size of the lead cable 21, making the fixed connection between the lead cable 21 and the rotor lead wire 31 more precise and reliable.

[0057] Further, a first connection hole 3313 is provided on the extension section 3312, and a strip-shaped hole 3324 is provided on the wire fixing block 332. The length of the strip-shaped hole 3324 extends along the direction close to and away from the rotor lead wire 31. The first fastener 333 sequentially passes through the strip-shaped hole 3324 and the first connection hole 3313 to fixedly connect the wire fixing block 332 to the extension section 3312. The wire fixing block 332 can move along the length direction of the strip-shaped hole 3324, enabling the wire fixing block 332 to move according to the actual installation situation to squeeze the lead cable 21 and the rotor lead wire 31, so as to achieve the best connection and fixation effect between the lead cable 21 and the rotor lead wire 31.

[0058] Specifically, the first fastener 333 adopts a screw and bolt structure. The screw and bolt structure is convenient for tightening adjustment and fixing the position of the wire fixing block 332. This embodiment is not limited to this only.

[0059] Further, there is a predetermined gap between the rotor lead wire 31 and the wire fixing frame 331. The fixing member 33 further includes an expansion body and a first binding tape. The expansion body is filled in the predetermined gap. Before installing the rotor lead wire 31, sufficient installation space needs to be reserved on the wire fixing frame 331 so that rotor lead wires 31 of different specifications can be fixedly connected to the wire fixing block 332. Therefore, after the rotor lead wire 31 is installed, there will be a predetermined gap between the rotor lead wire 31 and the wire fixing frame 331 along the radial direction of the rotating shaft 20. The expansion body can fill the predetermined gap between the rotor lead wire 31 and the wire fixing frame 331 and provide a certain supporting effect on the rotor lead wire 31. The expansion body can reduce the sway of the rotor lead wire 31 and further ensure the stability of the rotor lead wire 31. The expansion body can also effectively prevent impurities such as dust and moisture from entering the predetermined gap, protect the insulating layer of the rotor lead wire 31, and improve the operating safety of the rotor mechanism.

[0060] Among them, the expansion body can be made of polyester felt material. The polyester felt material has high tensile strength and elongation rate, can withstand large mechanical stresses and deformations, and ensure the stability and reliability of the rotor lead wire 31. At the same time, the polyester felt material also has excellent puncture resistance and insulation performance, can effectively prevent damage to the rotor lead wire 31 by external sharp objects, and is beneficial to protecting the integrity and safety of the rotor lead wire 31. It can be understood that the expansion body can also be made of other materials, and this embodiment is not limited to a single one.

[0061] Combined with the above embodiments, along the radial direction of the rotating shaft 20, the present application can stably fix the rotor lead wire 31 between the rotating shaft 20 and the rotor retaining ring 32.

[0062] Further, the first binding tape is wound and fixed around the outer peripheries of the wire fixing frame 331, the expansion body, and the rotor lead wire 31. The first binding tape is wound and fixed around the outer peripheries of the wire fixing frame 331, the expansion body, and the rotor lead wire 31, fixing the wire fixing frame 331, the expansion body, and the rotor lead wire 31 together and forming a stable fixing structure. Along the axial direction of the rotating shaft 20, the first binding tape can stably fix the rotor lead wire 31 on the wire fixing frame 331, realize the axial fixing of the rotor lead wire 31, and further ensure the stability of the rotor lead wire 31.

[0063] Furthermore, a rib 23 is provided on the outer peripheral surface of the rotating shaft 20, and the rotor retaining ring 32 is sleeved on the outer periphery of the rib 23 away from the rotating shaft 20. The rib 23 provides stable support and positioning points for the rotor retaining ring 32, ensuring the stability of the rotor retaining ring 32. The rotor retaining ring 32 and the rib 23 can be in keyway fit to restrict the circumferential rotation of the rotor retaining ring 32 relative to the rotating shaft 20. Along the axial direction of the rotating shaft 20, the rotor retaining ring 32 at least partially extends outside the rib 23 and has an installation gap with the rotating shaft 20. The wire fixing frame 331 is fixedly connected to the end of the rotor retaining ring 32 outside the rib 23. The wire component further includes an inter-pole wire 34. The installation gap can provide installation space for the inter-pole wire 34, so that the inter-pole wire 34 and its installation structure do not block the ventilation path inside the rotor mechanism, ensuring that the rotor mechanism has sufficient ventilation volume and providing a certain guarantee for the cooling of the rotor mechanism.

[0064] The fixing component 33 further includes a crimping part 334 and a second binding band. The crimping part 334 crimps the inter-pole wire 34 to the inner peripheral surface of the rotor retaining ring 32 outside the rib 23. The second binding band winds around and fixes the inter-pole wire 34 and the rotor retaining ring 32. After the crimping part 334 presses the inter-pole wire 34, it is fixedly connected to the inner peripheral surface of the rotor retaining ring 32 outside the rib 23, pressing and fixing the inter-pole wire 34 on the inner peripheral surface of the rotor retaining ring 32 to prevent the inter-pole wire 34 from being thrown out or falling off due to the high-speed rotation of the rotor mechanism. At the same time, the second binding band winds around and fixes the inter-pole wire 34 and the rotor retaining ring 32, fixing the inter-pole wire 34 and the rotor retaining ring 32 together and further strengthening the stability of the inter-pole wire 34.

[0065] As Figures 7 to 8 shown, wherein, the rotor retaining ring 32 includes a first end ring 321, a circular ring 322, a second end ring 323 and a plurality of rib blocks 324. The circular ring 322 is connected between the first end ring 321 and the second end ring 323 and abuts against the winding coil 11. The first end ring 321 is sleeved on the rotating shaft 20, and a plurality of rib blocks 324 are arranged at intervals around the axis of the rotating shaft 20 between the first end ring 321 and the second end ring 323. The plurality of rib blocks 324 are in mating connection with the rib 23 on the rotating shaft 20 and restrict the circumferential rotation of the rotor retaining ring 32 relative to the rotating shaft 20. After the crimping part 334 presses the inter-pole coil, it is locked and connected to the rib 23, locking the inter-pole wire 34 to the side of the rib 23 close to the rotating shaft 20. A third connection hole 3231 is provided on the second end ring 323, and a fourth connection hole 3314 is provided on the side of the wire fixing frame 331 close to the winding coil 11. A screw passes through the third connection hole 3231 and the fourth connection hole 3314 to fixedly lock the wire fixing frame 331 to the second end ring 323. The second binding band can pass through other third connection holes 3231 misaligned with the wire fixing frame 331 to tie and fix the inter-pole wire 34 to the second end ring 323.

[0066] Among them, the inter-pole conductors 34 include three groups, and each group of inter-pole conductors 34 includes an arc segment 341 and a first lead-out segment 342. The first lead-out segment 342 is located at the end of the arc segment 341. The arc segment 341 is arranged on the inner peripheral surface of the second end ring 323 and fixedly connected to at least one rib 23. One end of the first lead-out segment 342 far from the arc segment 341 is connected to the winding coil 11. After the crimping member 334 presses the arc segment 341, it is locked and connected to the rib 23. The crimping member 334 can be set as a plate-like structure, and the plate-like structure can increase the contact area with the arc segment 341, thereby ensuring the stability of the inter-pole conductor 34.

[0067] Furthermore, the wire component further includes a neutral ring 35. The neutral ring 35 includes an annular main body portion 351 and a second lead-out segment 352. The crimping member 334 also presses the annular main body portion 351 against the inner peripheral surface of the rotor retaining ring 32 outside the rib 23, and the annular main body portion 351 is located on the side of the inter-pole conductor 34 close to the rib 23. The crimping member 334 can also fixedly connect the annular main body after pressing it to the inner peripheral surface of the rotor retaining ring 32 outside the rib 23, thereby ensuring that the inter-pole conductor 34 and the neutral ring 35 are stably fixed on the rotor retaining ring 32. Along the circumferential direction of the rotating shaft 20, the crimping member 334 limits and fixes the neutral ring 35, ensuring the stability of the neutral ring 35. The second lead-out segment 352 is located on the annular main body portion 351 and extends out of the rotor retaining ring 32 to be connected to the winding coil 11. The fixing member 33 further includes a third binding tape. The third binding tape passes through the fifth connection hole 3241 on the rib block 324 and winds and fixes the annular main body portion 351, the inter-pole conductor 34, and the rotor retaining ring 32. The second lead-out segment 352 is fixedly connected to the first end ring 321, and the second lead-out segment 352 and the first end ring 321 are wound and fixed by the third binding tape. The third binding tape can stably fix the inter-pole conductor 34 and the neutral ring 35 inside the rotor retaining ring 32, reducing the occurrence of situations such as the inter-pole conductor 34 and the neutral ring 35 being thrown out or falling off. Along the radial direction of the rotating shaft 20, the third binding tape limits and fixes the neutral ring 35, ensuring the stability of the neutral ring 35.

[0068] Specifically, the first binding tape, the second binding tape, and the third binding tape can all adopt non-woven binding tapes. The non-woven binding tape has a high tensile strength and can withstand large mechanical stresses. The non-woven binding tape is not easily broken or deformed during the binding process. The non-woven binding tape can ensure the stable reliability of the rotor lead wire 31, the inter-pole conductor 34, and the neutral ring 35. At the same time, the non-woven binding tape also has good electrical insulation performance, can effectively isolate electrical components, reduce the risk of electrical faults, and improve the electrical safety and reliability of the rotor mechanism. The specific structure of the first binding tape, the second binding tape, and the third binding tape in this embodiment is not uniquely limited.

[0069] Among them, a connecting sleeve 111 is provided at the connection between the rotor lead wire 31 and the winding coil 11. After the connecting sleeve 111 is riveted to one end of the rotor lead wire 31 close to the winding coil 11, it is welded to the winding coil 11. The connecting sleeve 111 can fix the rotor lead wire 31 and the winding coil 11 together to ensure the reliability and stability of the connection between the rotor lead wire 31 and the winding coil 11. The connection between the first lead segment 342 and the winding coil 11 and the connection between the second lead segment 352 and the winding coil 11 can also be fixedly connected through the connecting sleeve 111.

[0070] In summary, for the rotor mechanism provided in this application, the axial and radial fixation of the rotor lead wire 31 by the fixing component 33 can ensure the stability of the rotor lead wire 31 while maximizing the air inlet area of the rotor mechanism. At the same time, the assembly operation of the fixing component 33 and the rotating shaft is simplified, which is beneficial to saving manufacturing costs. In addition, since the rotor retaining ring 32 cooperates with the rib 23 on the rotating shaft 20, and at the same time fixes the interpolar wire 34 and the neutral ring 35 in cooperation with the rotor retaining ring 32, while ensuring the reliability of the rotor lead wire 31, the interpolar wire 34 and the neutral ring 35, the air inlet area is effectively increased, and at the same time, operations such as machining and assembly on the rotating shaft 20 are avoided, reducing the processing cost. At the same time, the assembly of the interpolar wire 34, the neutral ring 35 and the rotor lead wire 31 is completed through one rotor retaining ring 32, further compressing the assembly space, ensuring the air inlet area, ensuring the air inlet volume, and providing a certain guarantee for the cooling of the rotor mechanism.

[0071] On the other hand, this application also provides a generator, which includes the rotor mechanism of any of the above technical solutions. Therefore, this generator includes all the technical effects of the above rotor mechanism. Since the technical effects of the rotor mechanism have been described in detail above, they will not be repeated here.

[0072] For the sake of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the attached drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned as "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0073] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of this application.

[0074] The above are only the preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A rotor mechanism, characterized in that: include: A rotor core (10), wherein a winding coil (11) is wound inside the rotor core (10); A rotating shaft (20), wherein the rotating shaft (20) is sleeved in the rotor core (10); A connecting assembly (30), the connecting assembly (30) comprising a wire component, a rotor pressing ring (32) and a fixing component (33), the rotor pressing ring (32) being sleeved on the rotating shaft (20) and abutting against a side of the winding coil (11) close to the rotating shaft (20), the wire component being connected between the rotating shaft (20) and the rotor pressing ring (32) through the fixing component (33) and connected to the winding coil (11).

2. The rotor mechanism according to claim 1, characterized in that: The conductor component comprises a rotor lead wire (31), a lead cable (21) is arranged on the rotating shaft (20), and the fixing component (33) comprises: A wire fixing frame (331), along the radial direction of the rotating shaft (20), one end of the wire fixing frame (331) is fixedly connected to the outer wall of the rotating shaft (20), and the other end is fixedly connected to the rotor pressing ring (32); A locking structure, wherein the locking structure is arranged on a side of the wire fixing frame (331) close to the rotating shaft (20), one end of the rotor lead wire (31) is connected to the winding coil (11), and the other end of the rotor lead wire (31) and the lead cable (21) are connected through the locking structure and locked to the wire fixing frame (331).

3. The rotor mechanism according to claim 2, characterized in that: The lead-out cables (21) include at least two, and the at least two lead-out cables (21) are respectively located on opposite sides of the rotor lead-out wire (31) along the circumference of the rotating shaft (20), and the locking structure includes: A wire fixing block (332), the wire fixing block (332) comprising at least two blocks, the at least two wire fixing blocks (332) having a first position for connecting the rotor lead wire (31) and at least two lead cables (21) and clamping them on the wire fixing frame (331), and a second position for separating the rotor lead wire (31) and at least two lead cables (21), and the wire fixing block (332) is connected to the wire fixing frame (331); A first fastener (333), wherein the first fastener (333) locks the wire fixing block (332) at the first position or unlocks it to the second position.

4. The rotor mechanism according to claim 3, characterized in that: The first fasteners (333) include at least two, and the wire fixing block (332) includes: a first connecting section (3321), the first connecting section (3321) being in contact with the lead-out cable (21), and squeezing and locking the lead-out cable (21) onto the rotor lead wire (31) through at least one of the first fasteners (333); A second connecting section (3322), the second connecting section (3322) is located on a side of the first connecting section (3321) away from the rotor lead wire (31), and the second connecting section (3322) is fixedly connected to the wire fixing frame (331) via at least one of the first fasteners (333).

5. The rotor mechanism according to any one of claims 3 or 4, characterized in that: The wire fixing frame (331) comprises: A main body (3311), one end of the main body (3311) being fixedly connected to a side of the rotor pressing ring (32) close to the winding coil (11), and the other end of the main body (3311) extending to the rotating shaft (20) along the radial direction of the rotating shaft (20) and being fixedly connected to the rotating shaft (20), and the rotor lead wire (31) being located on the main body (3311); An extension section (3312), wherein the extension section (3312) is located at one end of the main body (3311) close to the rotating shaft (20) and protrudes from two opposite sides of the main body (3311) along the circumference of the rotating shaft (20), and the wire fixing block (332) can be moved to a predetermined position relative to the extension section (3312) in a direction close to or away from the rotor lead wire (31), and the first fastener (333) fixes the wire fixing block (332) at the predetermined position.

6. The rotor mechanism according to claim 5, characterized in that: The extension section (3312) is provided with a first connecting hole (3313), and the wire fixing block (332) is provided with a strip hole (3324), the length of the strip hole (3324) extends in a direction approaching and away from the rotor lead wire (31), and the first fastener (333) is sequentially passed through the strip hole (3324) and the first connecting hole (3313) to fix the wire fixing block (332) and the extension section (3312).

7. The rotor mechanism according to any one of claims 2 to 4, characterized in that: A predetermined gap is provided between the rotor lead wire (31) and the wire fixing frame (331), and the fixing component (33) further comprises: An expansion body, wherein the expansion body is filled in the predetermined gap; A first binding band is wound and fixed to the outer circumference of the wire fixing frame (331), the expansion body and the rotor lead wire (31).

8. The rotor mechanism according to any one of claims 2 to 4, characterized in that: The outer circumferential surface of the rotating shaft (20) is provided with a convex rib (23); the rotor pressing ring (32) is sleeved on the outer circumference of the convex rib (23) away from the rotating shaft (20); along the axial direction of the rotating shaft (20), the rotor pressing ring (32) at least partially extends outside the convex rib (23) and has an installation gap with the rotating shaft (20); the wire fixing frame (331) is fixedly connected to the end of the rotor pressing ring (32) located outside the convex rib (23); the wire component also includes an inter-electrode wire (34); and the fixing component (33) also includes: A crimping piece (334), wherein the crimping piece (334) crimps the inter-electrode conductor (34) onto the inner circumferential surface of the rotor pressing ring (32) outside the convex rib (23); A second binding band is used to wrap around and fix the inter-pole conductor (34) and the rotor pressing ring (32).

9. The rotor mechanism according to claim 8, characterized in that: The conductor component further comprises a neutral ring (35), the neutral ring (35) comprising an annular main body (351) and a second lead-out section (352), the crimping piece (334) further crimps the annular main body (351) to the inner circumference of the rotor pressing ring (32) outside the convex rib (23), and the annular main body (351) is located on a side of the inter-polar conductor (34) close to the convex rib (23), the second lead-out section (352) is located on the annular main body (351) and extends out of the rotor pressing ring (32) to be connected to the winding coil (11), and the fixing component (33) further comprises: A third binding band is used to wrap and fix the annular main body (351), the inter-electrode conductor (34) and the rotor pressing ring (32) together.

10. A generator, characterized in that: Comprising the rotor mechanism according to any one of claims 1 to 9.

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