Rotary transformer stator mounting structure, rotary transformer and motor

Abstract

The utility model provides a rotary transformer stator installation structure, a rotary transformer and a motor, and belongs to the technical field of motors, the rotary transformer stator installation structure comprises an end cover, a first abutting surface is arranged in the end cover, the first abutting surface is annularly arranged, and a first installation position is formed at the first abutting surface. A detachable flange is arranged in the first installation position, a second abutting face is arranged on the outer wall of the flange, the second abutting face is matched with the first abutting face, and a second installation position used for containing the rotary transformer stator is arranged in the flange. One end of the locking structure penetrates through the flange and is rotationally connected with the end cover; when the locking structure rotates, the flange is driven to move in the axial direction of the first abutting face, so that the first abutting face extrudes the second abutting face, and the size of the second mounting position is changed. According to the rotary transformer stator mounting structure, the rotary transformer stator is accommodated through the second mounting position of the flange, so that rotary transformer zeroing of the rotary transformer stator becomes simple and convenient, and reduction of the defective product rate of a motor is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a resolver stator installation structure, a resolver and a motor. Background Art

[0002] In the fields of new energy vehicles and industrial automation, synchronous motors play a crucial role. In addition to important structural components such as stators, rotors, and permanent magnets, synchronous motors also require sensor components that can identify the position and speed of their rotors. Currently, most sensors for vehicle-mounted synchronous motors are resolvers, abbreviated as resolvers. A resolver consists of a resolver rotor and a resolver stator. The resolver rotor is used to be fixed on the rotor shaft of the motor rotor, and the resolver stator is used to be fixed on the end cover of the motor. When the motor rotor rotates, an angular change occurs between the resolver rotor and the resolver stator, and the controller can identify the position and angular velocity relationship between the motor rotor and the motor stator, thereby realizing the synchronous control of the motor. However, during the mass production of synchronous motors, when the resolver rotor and the resolver stator of each motor are assembled onto the motor, their relative positions are not fixed. Therefore, it is necessary to zero the position of the resolver stator so that the resolver electrical angles of the motors leaving the factory in batches are all in the same position.

[0003] In the existing integral resolver stator, the flange for adjusting the angular position of the resolver stator and the resolver stator body are integral. The flange for adjusting the angle is generally to open a U-shaped hole on the silicon steel sheet of the resolver stator or to press-fit the resolver stator onto the flange, and the two cannot rotate relative to each other. See Figure 1 Therefore, when the resolver angle of the motor needs to be adjusted, the angle can only be adjusted through the U-shaped hole on the flange. However, the angle adjustment amount of the U-shaped hole is small, and there will also be an angle adjustment dead zone. Moreover, there is a certain probability of angular deviation when the motor stator is assembled into the motor housing. Therefore, the phenomenon that the resolver angle cannot be zeroed will occur during motor production. This will lead to the need for rework of the end cover or directly determining the motor as a defective product in the later stage, which not only affects the production progress but also increases the overall cost.

[0004] Therefore, it is necessary to improve the existing motor heat dissipation method to overcome the defects of the prior art. Summary of the Utility Model

[0005] To overcome the problems existing in the related art, one of the purposes of the present utility model is to provide a resolver stator installation structure. This installation structure uses the second installation position of the flange to accommodate the resolver stator, making the zero adjustment of the resolver stator simple and convenient, and helping to reduce the defective rate of the motor.

[0006] A resolver stator installation structure includes:

[0007] End cover, a first abutting surface is provided in the end cover, the first abutting surface is annularly arranged, and a first mounting position is formed at the first abutting surface; a detachable flange is provided in the first mounting position, and a second abutting surface is provided on the outer wall of the flange, the second abutting surface is adapted to the first abutting surface, and a second mounting position for accommodating a resolver stator is provided in the flange;

[0008] Locking structure, one end of the locking structure penetrates through the flange and is rotatably connected to the end cover; when the locking structure rotates, it drives the flange to axially move along the first abutting surface, and can make the first abutting surface squeeze the second abutting surface to change the size of the second mounting position.

[0009] In actual application, when the size of the second mounting position is larger than the outer diameter of the resolver stator, the resolver stator can rotate in the second mounting position, so that the electrical angle adjustment of the resolver stator can be conveniently and quickly realized. After the resolver stator is adjusted to the target position, the flange is completely locked on the end cover through the locking structure. In this process, the first abutting surface will squeeze the flange, making the size of the second mounting position gradually smaller until the wall surface of the second mounting position is in close contact with the outer wall of the resolver stator. At this time, the resolver stator is completely locked by the flange and cannot rotate anymore, thus ensuring that the angle of the resolver stator will not deviate at all and guaranteeing the accuracy of the measurement.

[0010] In a preferred technical solution of the present utility model, the first abutting surface is arranged at an angle α with the axis of the end cover, wherein, 2° < α < 4°.

[0011] The first abutting surface is designed as a conical surface with a certain angle, the second abutting surface is adapted to the first abutting surface, and the angles of the two abutting surfaces are the same, which can ensure the perfect adaptation of the end cover and the flange, so that the flange can be squeezed by the first abutting surface during the moving process to change the size of the second mounting position.

[0012] In a preferred technical solution of the present utility model, a notch is provided on the flange, the notch penetrates through the flange along the axis of the flange, and the width of the notch is 0.5 cm - 1 cm.

[0013] Due to the existence of the notch, when the second abutting surface of the flange is squeezed by the first abutting surface, the second mounting position gradually becomes smaller and tighter, so that the resolver stator in the second mounting position can be locked.

[0014] In a preferred technical solution of the present utility model, the flange includes a connecting ring and a flange, the flange is arranged on one side of the connecting ring, the flange protrudes outward on the outer wall of the connecting ring, and the second mounting position is arranged in the connecting ring and the flange;

[0015] The outer wall of the connecting ring forms the second abutting surface. A plurality of mounting holes are provided on the flange, and screw holes corresponding to the mounting holes are provided on the end cover. One end of the locking structure passes through the mounting hole and is threadedly connected to the screw hole.

[0016] The design of the mounting holes and screw holes makes the connection between the flange and the end cover more convenient and fast. The operator only needs to pass one end of the locking structure through the mounting hole and thread it with the screw hole to complete the installation process, which helps to improve work efficiency. The reasonable design of the flange structure in this application makes the subsequent maintenance and replacement of the resolver stator easier. The operator can easily disassemble the flange to inspect and repair the resolver stator.

[0017] In a preferred technical solution of the present utility model, a positioning edge is provided on the flange. The positioning edge is provided on the side of the connecting ring away from the flange, and the positioning edge protrudes inward from the inner wall of the connecting ring.

[0018] The positioning edge is used for axially positioning the resolver stator, providing a clear axial positioning point for the resolver stator, ensuring the accuracy and consistency of the installation, and reducing the risk of vibration and displacement during operation.

[0019] In a preferred technical solution of the present utility model, the maximum diameter of the first abutting surface is d1, and the maximum outer diameter of the second abutting surface is d2;

[0020] Wherein, d1 = d2 + x, x is 0.1 mm - 0.105 mm, and the units of d1, d2 and x are all mm.

[0021] In a preferred technical solution of the present utility model, the locking structure is used to lock the flange on the end cover;

[0022] During the process of locking the flange by the locking structure, it includes a pre-locking state and a fully locked state;

[0023] Wherein, in the pre-locking state, there is a gap t1 between the flange and the avoidance of the first mounting position, and t1 = 0.3h, where h is the height of the resolver stator, and the units of t1 and h are both mm.

[0024] This application can achieve precise control of the installation position of the resolver stator by accurately setting the relationship between d1 and d2, and the gap t1 in the pre-locking state. This precise dimensional design helps to ensure the accuracy during installation and also ensures the stability of the resolver stator during operation.

[0025] The second object of the present utility model is to provide a resolver, which includes a resolver rotor, a resolver stator and a flange. The flange is arranged in the resolver stator mounting structure as described above, and the flange is detachably connected to the end cover; the resolver stator is arranged in the flange, and the resolver rotor is arranged in the resolver stator.

[0026] The third object of the present utility model is to provide a motor, which includes a motor main body, and the resolver as described above is arranged on the motor main body.

[0027] The beneficial effects of the present utility model are as follows:

[0028] A resolver stator mounting structure provided by the present utility model includes an end cover. A first abutting surface is arranged in the end cover. The first abutting surface is annularly arranged, and a first mounting position is formed at the first abutting surface; a detachable flange is arranged in the first mounting position. A second abutting surface is arranged on the outer wall of the flange, and the second abutting surface is adapted to the first abutting surface. A second mounting position for accommodating the resolver stator is arranged in the flange. It further includes a locking structure. One end of the locking structure penetrates through the flange and is rotatably connected to the end cover. The locking structure locks the flange and the end cover to each other. During the locking process, when the locking structure rotates, it drives the flange to move axially along the first abutting surface. During the movement of the flange, it is squeezed by the second abutting surface of the end cover, so that the size of the second mounting position changes. In actual application, the resolver stator is installed in the second mounting position. At this time, the size of the second mounting position is larger than the outer wall of the resolver stator, and there is a gap between the resolver stator and the wall surface of the second mounting position. At this time, the flange and the end cover are in a pre-locked state. In this state, the resolver stator can rotate in the flange for angle adjustment, and the adjustment amount of the angle is not limited, and full-angle adjustment can be realized. When the resolver stator is adjusted to the target position, the flange is completely locked on the end cover through the locking structure. At this time, the first abutting surface squeezes the flange to make the size of the second mounting position smaller, and the wall surface of the second mounting position is in contact with the outer wall of the resolver stator. The resolver stator is completely locked by the flange and cannot rotate, avoiding the deviation of the angle of the resolver stator and ensuring the accuracy of measurement. In summary, this resolver stator mounting structure makes the resolver zero adjustment of the resolver stator simple and convenient, and helps to reduce the defective rate of the motor.

[0029] The present application also provides a resolver and a motor, and the resolver is installed through the above-mentioned resolver stator mounting structure, so that the electrical angle of the resolver stator can be accurately and conveniently adjusted, and the convenience in use can be improved. Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of an existing integrated resolver stator provided by the present utility model;

[0031] Figure 2It is a schematic structural diagram of the resolver stator mounting structure provided in the embodiment of the present utility model;

[0032] Figure 3 It is a schematic structural diagram of the resolver stator mounting structure when the flange is not locked in the embodiment of the present utility model;

[0033] Figure 4 It is a schematic structural diagram of the end cover provided in the embodiment of the present utility model;

[0034] Figure 5 It is a schematic structural diagram of the flange provided in the embodiment of the present utility model;

[0035] Figure 6 It is a perspective view of the flange provided in the embodiment of the present utility model;

[0036] Figure 7 It is a schematic structural diagram of the split resolver stator of the present application provided in the embodiment of the present utility model;

[0037] Figure 8 It is a schematic structural diagram of the resolver stator mounting structure when the flange is pre-locked in the embodiment of the present utility model.

[0038] Reference numerals:

[0039] 1. Resolver stator; 2. Flange; 21. U-shaped hole; 22. Flange; 23. Mounting hole; 24. Second abutting surface; 25. Positioning edge; 26. Connecting ring; 27. Fracture; 3. End cover; 31. First abutting surface; 32. First mounting position; 4. Locking structure. Detailed implementation manners

[0040] The preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.

[0041] In the existing integrated resolver stator, the flange for adjusting the angular position of the resolver stator is integrated with the resolver stator body. Generally, the flange for adjusting the angle is to open a U-shaped hole on the silicon steel sheet of the resolver stator or to press-fit the resolver stator onto the flange, and the two cannot rotate relative to each other. Therefore, when the resolver angle of the motor needs to be adjusted, the angle can only be adjusted through the U-shaped hole on the flange. However, the angle adjustment amount of the U-shaped hole is small, and there will be an angle adjustment dead zone. Moreover, there is a certain probability of angle deviation when the motor stator is assembled into the motor housing. Therefore, it will cause the phenomenon that the resolver angle cannot be zeroed during motor production. This will lead to the need to send the end cover back to the factory for processing or directly determine the motor as a defective product in the later stage, which not only affects the production progress but also increases the overall cost.

[0042] Based on this, the present application provides a resolver stator mounting structure.

[0043] Embodiment 1

[0044] As Figures 1 - 8 shown, a resolver stator mounting structure provided in this embodiment includes an end cover 3. A first abutting surface 31 is provided in the end cover 3. The first abutting surface 31 is annularly arranged, and a first mounting position 32 is formed at the first abutting surface 31. A detachable flange 2 is arranged in the first mounting position 32. A second abutting surface 24 is provided on the outer wall of the flange 2. The second abutting surface 24 is adapted to the first abutting surface 31. A second mounting position for accommodating the resolver stator 1 is provided in the flange 2. It further includes a locking structure 4. One end of the locking structure 4 penetrates through the flange 2 and is rotatably connected to the end cover 3. The locking structure 4 locks the flange 2 and the end cover 3 to each other. During the locking process, when the locking structure 4 rotates, it drives the flange 2 to move axially along the first abutting surface 31. During this movement process, the flange 2 will be squeezed by the first abutting surface 31 of the end cover 3, so that the size of the second mounting position changes accordingly.

[0045] Specifically, the locking structure 4 of the present application can be a bolt. The bolt passes through the flange 2 and is threadedly connected to the end cover 3. When the bolt rotates, the flange 2 can be made to approach or move away from the end cover 3.

[0046] The first mounting position 32 of the present application is adapted to the outer wall of the flange 2 to better accommodate the flange 2; the second mounting position is designed according to the structure of the resolver stator 1 to accommodate the resolver stator 1.

[0047] In practical applications, the resolver stator 1 is installed in the second installation position. At this time, the size of the second installation position is larger than the outer wall of the resolver stator 1, and there is a gap between the resolver stator 1 and the wall surface of the second installation position. At this time, the flange 2 and the end cover 3 are in a pre-locked state. In this state, the resolver stator 1 can rotate in the flange 2 for angle adjustment, and the angle adjustment amount is not limited, enabling full-angle adjustment. When the resolver stator 1 is adjusted to the target position, the flange 2 is completely locked to the end cover 3 through the locking structure 4. At this time, the first abutting surface 31 presses the flange 2 to reduce the size of the second installation position, and the wall surface of the second installation position abuts against the outer wall of the resolver stator 1. The resolver stator 1 is completely locked by the flange 2 and cannot rotate, preventing the angle of the resolver stator 1 from deviating and ensuring the accuracy of measurement.

[0048] For the resolver stator installation structure of the present application, the flange 2 in the traditional integrated resolver stator 1 is cancelled, and the resolver stator 1 and the flange 2 are in a split form. The resolver stator 1 is detachably arranged in the second installation position of the flange 2. Angle adjustment is performed by the mutual rotation of the split resolver stator 1 and the flange 2, and the angle adjustment amount is not limited, enabling full-angle adjustment.

[0049] In summary, this resolver stator installation structure simplifies and facilitates the resolver zero adjustment of the resolver stator 1, helping to reduce the defective rate of the motor.

[0050] Embodiment 2

[0051] Based on Embodiment 1, this embodiment specifically describes the structures of the end cover 3 and the flange 2.

[0052] As Figures 1 - 8 shown, in this embodiment, the first abutting surface 31 is arranged at an angle α with the axis of the end cover 3, where 2° < α < 4°.

[0053] Both the first abutting surface 31 and the second abutting surface 24 of the present application are conical surfaces. When the flange 2 is in the unlocked state, the larger the gap between the second abutting surface 24 and the first abutting surface 31, the larger the angle of α needs to be correspondingly.

[0054] The first abutting surface 31 is designed as a conical surface with a certain angle, and the second abutting surface 24 is adapted to the first abutting surface 31. The angles of the two abutting surfaces are the same, which can ensure the perfect fit between the end cover 3 and the flange 2. Thus, during the movement of the flange 2, it can be pressed by the first abutting surface 31 to change the size of the second installation position. The angle range of α in the present application is controlled between 2° and 4°. This design not only ensures the smooth cooperation between the flange 2 and the end cover 3 in the unlocked state but also allows for a closer fit during the locking process. The second abutting surface 24 matches the first abutting surface 31 and also adopts a conical design to ensure that the adaptation between the two can effectively press the flange 2.

[0055] More specifically, a break 27 is provided on the flange 2. The break 27 penetrates the flange 2 along the axis of the flange 2, and the width of the break 27 is 0.5 cm - 1 cm.

[0056] Due to the existence of the break 27, when the second abutting surface 24 of the flange 2 is squeezed by the first abutting surface 31, the second mounting position gradually becomes smaller and tighter, so as to lock the resolver stator 1 in the second mounting position.

[0057] Specifically, the flange 2 is designed in a ring shape, and the design of the break 27 makes the head and tail of the flange 2 not connected. Therefore, when the flange 2 is squeezed, the break 27 will gradually contract. The design with the width of the break 27 being 0.5 cm - 1 cm provides a margin for deformation of the second mounting position, enabling the second mounting position to meet the fixed locking of resolver stators 1 of different sizes.

[0058] In this embodiment, by adjusting the α angle and the design of the break 27, this embodiment provides a flexible adjustment mechanism for the second mounting position to adapt to different gap amounts and locking requirements. This flexibility greatly simplifies the installation process and improves work efficiency.

[0059] Embodiment 3

[0060] This embodiment is an improvement based on Embodiment 2.

[0061] As Figures 1 - 8 shown, in this embodiment, the flange 2 includes a connecting ring 26 and a flange 22. The flange 22 is provided on one side of the connecting ring 26, and the flange 22 protrudes outward on the outer wall of the connecting ring 26. The second mounting position is provided in the connecting ring 26 and the flange 22;

[0062] The outer wall of the connecting ring 26 forms the second abutting surface 24. A plurality of mounting holes 23 are provided on the flange 22, and screw holes corresponding to the mounting holes 23 are provided on the end cover 3. One end of the locking structure 4 penetrates the mounting hole 23 and is threadedly connected to the screw hole.

[0063] Specifically, 4 - 8 mounting holes 23 can be provided, and the plurality of mounting holes 23 are evenly distributed on the flange 22 along the circumferential direction of the flange 22. This layout ensures uniform force on the flange 2 on the end cover 3 and improves the stability and reliability of the installation.

[0064] The design of the mounting holes 23 and the screw holes makes the connection between the flange 2 and the end cover 3 more convenient and rapid. The operator only needs to pass one end of the locking structure 4 through the mounting hole 23 and thread it with the screw hole, then the installation process can be completed, which helps to improve work efficiency. The reasonable design of the flange 2 structure in this application makes the subsequent maintenance and replacement of the resolver stator 1 easier. The operator can easily disassemble the flange 2 to inspect and repair the resolver stator 1.

[0065] More specifically, a positioning edge 25 is provided on the flange 2. The positioning edge 25 is arranged on the side of the connecting ring 26 away from the flange 22, and the positioning edge 25 protrudes inward from the inner wall of the connecting ring 26.

[0066] The positioning edge 25 is used for axially positioning the resolver stator 1, providing a clear axial positioning point for the resolver stator 1, ensuring the accuracy and consistency of the installation, and reducing the risk of vibration and displacement during operation.

[0067] Embodiment 4

[0068] This embodiment is a modification based on Embodiment 2. Specifically:

[0069] As Figures 1 - 8 shown, in this embodiment, the maximum diameter of the first abutting surface 31 is d1, and the maximum outer diameter of the second abutting surface 24 is d2;

[0070] wherein, d1 = d2 + x, x is 0.1 mm - 0.105 mm, and the units of d1, d2, and x are all mm.

[0071] Both the first abutting surface 31 and the second abutting surface 24 are conical surfaces. It can be understood that the conical surface here is designed in a frustum shape at the junction of the first abutting surface 31 and the second abutting surface 24.

[0072] In this application, x is the fitting tolerance between the first abutting surface 31 and the second abutting surface 24, and the value of this can be set according to the size of the end cover 3 and the size of the flange 2. The relationship design between d1 and d2 in this application ensures the tight fit between the first abutting surface 31 and the second abutting surface 24, while allowing a certain tolerance range to adapt to the minor variations in the manufacturing and assembly processes.

[0073] In this embodiment, the locking structure 4 is used to lock the flange 2 onto the end cover 3;

[0074] During the process of locking the flange 2, the locking structure 4 includes a pre-locking state and a fully locked state;

[0075] Among them, in the pre-locking state, there is a gap t1 between the flange 2 and the avoidance of the first mounting position 32, where t1 = 0.3h, h is the height of the resolver stator 1, and the units of t1 and h are both mm.

[0076] By precisely setting the relationship between d1 and d2 and the gap t1 in the pre-locking state, this application can achieve precise control of the installation position of the resolver stator 1. This precise dimensional design helps to ensure the accuracy during installation and also guarantees the stability of the resolver stator 1 during operation.

[0077] The fit between the flange 2 and the end cover 3 has a pre-locking state and a locking state. In actual applications, when the flange 2 is pre-locked, t1 should be less than 0.4h (h is the height of the resolver rotor). If t1 is greater than 0.4, it will cause inaccuracies when adjusting the angle of the resolver stator 1. Therefore, t1 = 0.3h can be taken.

[0078] Embodiment 5

[0079] This embodiment is an improvement based on Embodiment 1. Specifically:

[0080] As Figures 1 - 8 shown, in this embodiment, the first abutting surface 31 is arranged at an angle α with the axis of the end cover 3, where 2° < α < 4°.

[0081] Different from Embodiment 2, in this embodiment, the flange 2 can be made of a material with elastic deformation, and there is no need to set a port on the flange 2. When the flange 2 moves, it is squeezed by the first abutting surface 31, causing the flange 2 to deform and fixing the resolver stator 1 in the second mounting position.

[0082] Embodiment 6

[0083] As Figures 1 - 8 shown, this embodiment provides a resolver, which includes a resolver rotor, a resolver stator 1, and a flange 2. The flange 2 is arranged in the resolver stator mounting structure as described above, and the flange 2 is detachably connected to the end cover 3; the resolver stator 1 is arranged in the flange 2, and the resolver rotor is arranged in the resolver stator 1.

[0084] Specifically, the resolver rotor is one of the core components of the resolver. It is responsible for rotating in the magnetic field to induce voltage. The resolver rotor can be made of silicon steel sheets. The resolver rotor is installed inside the resolver stator 1, maintaining a certain gap with the resolver stator 1 to ensure that there is no friction or collision with the resolver stator 1 during rotation. The resolver stator 1 is another core component of the resolver. It works in cooperation with the resolver rotor to jointly achieve voltage transformation. The resolver stator 1 usually has multiple windings for generating and inducing magnetic fields. In this embodiment, the resolver stator 1 is installed in the second mounting position of the flange 2, and stable fixation and support are achieved through the cooperation of the flange 2 and the end cover 3. The flange 2 is a key component connecting the resolver stator 1 and the end cover 3, providing the mounting structure and support for the resolver stator 1. The cover is an external structural component of the resolver, used to enclose and protect the internal resolver rotor and resolver stator 1.

[0085] The following provides the adjustment process for the angle of the resolver stator of the resolver:

[0086] First, ensure that the resolver is powered on and in a safe state. Then use an angle measuring instrument to check the current angle position of the resolver stator 1. Record the initial position for subsequent comparison and adjustment.

[0087] During the manufacturing process, the angle of the resolver stator 1 usually does not match the expected or design requirements, resulting in poor output performance of the resolver and requiring adjustment.

[0088] At this time, loosen the locking structure 4 between the flange 2 and the end cover 3, such as bolts. Ensure that the flange 2 can move so that the flange 2 returns to the pre-locked state for angle adjustment of the resolver stator 1.

[0089] Then use a special adjustment tool or equipment to slowly adjust the angle of the resolver stator 1. At the same time, use an angle measuring instrument to monitor the angle change during the adjustment process. Fine-tune the angle of the resolver stator 1 as needed until the expected position is reached.

[0090] After completing the angle adjustment, re-tighten the connection between the flange 2 and the end cover 3 to ensure that the connection between the two is firm and reliable to prevent the resolver stator 1 from moving during operation.

[0091] After the adjustment is completed, necessary tests are carried out. Observe the output performance and waveform of the resolver to ensure that the adjusted angle of the resolver stator 1 can meet the requirements.

[0092] The resolver is installed through the above-mentioned resolver stator mounting structure, enabling the electrical angle of the resolver stator 1 to be accurately and conveniently adjusted, which can improve the convenience during use.

[0093] Embodiment 7

[0094] This embodiment provides a motor, including a motor body, and a resolver as described above is provided on the motor body.

[0095] In actual applications, the resolver rotor of the resolver is connected to the rotor shaft of the motor, so that the resolver rotor can rotate together with the rotor of the motor. At the same time, the resolver stator 1 is fixed on the motor body and maintains a certain gap from the resolver rotor to ensure that there is no friction or collision during the rotation process.

[0096] With this design, the motor can monitor the position and speed of the rotor in real time, so as to achieve more precise control and adjustment. In addition, due to the high-precision voltage conversion function of the resolver, the motor can maintain stable output voltage and current under different loads and working conditions, improving the operation efficiency and stability of the motor.

[0097] In addition, it should be noted that using words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional declaration, the above words have no special meaning, so it cannot be understood as a limitation on the protection scope of this application.

[0098] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rotating stator installation structure, characterized in that: include: An end cover (3), wherein a first abutting surface (31) is arranged in the end cover (3), the first abutting surface (31) is arranged in an annular shape, and a first mounting position (32) is formed at the first abutting surface (31); a detachable flange (2) is arranged in the first mounting position (32), the outer wall of the flange (2) is provided with a second abutting surface (24), the second abutting surface (24) is adapted to the first abutting surface (31), and a second mounting position for accommodating a rotary stator (1) is arranged in the flange (2); A locking structure (4), one end of which passes through the flange (2) and is rotatably connected to the end cover (3); when the locking structure (4) rotates, it drives the flange (2) to move axially along the first abutment surface (31), so that the first abutment surface (31) can squeeze the second abutment surface (24) to change the size of the second installation position.

2. The resolver stator mounting structure according to claim 1, characterized in that: The first abutting surface (31) is arranged at an angle α with the axis of the end cover (3), wherein 2°<α<4°.

3. The resolver stator mounting structure according to claim 2, characterized in that: The flange (2) is provided with a fracture (27), the fracture (27) passes through the flange (2) along the axis of the flange (2), and the width of the fracture (27) is 0.5 cm-1 cm.

4. The resolver stator mounting structure according to claim 2, characterized in that: The flange (2) comprises a connecting ring (26) and a flange (22), wherein the flange (22) is arranged on one side of the connecting ring (26), the flange (22) protrudes outward from the outer wall of the connecting ring (26), and the second mounting position is arranged between the connecting ring (26) and the flange (22); The outer wall of the connecting ring (26) forms the second abutting surface (24), the flange (22) is provided with a plurality of mounting holes (23), the end cover (3) is provided with screw holes corresponding to the mounting holes (23), and one end of the locking structure (4) passes through the mounting hole (23) and is threadedly connected to the screw hole.

5. The resolver stator mounting structure according to claim 4, characterized in that: The flange (2) is provided with a positioning edge (25), the positioning edge (25) is arranged on a side of the connecting ring (26) away from the flange (22), and the positioning edge (25) protrudes inward from the inner wall of the connecting ring (26).

6. The resolver stator mounting structure according to any one of claims 1 to 5, characterized in that: The maximum diameter of the first abutting surface (31) is d1, and the maximum outer diameter of the second abutting surface (24) is d2; Among them, d1=d2+x, x is 0.1mm-0.105mm, and the units of d1, d2 and x are all mm.

7. The resolver stator mounting structure according to claim 6, characterized in that: The locking structure (4) is used to lock the flange (2) on the end cover (3); The locking structure (4) includes a pre-locking state and a fully locked state during the process of locking the flange (2); Wherein, in the pre-locking state, a gap t1 is avoided between the flange (2) and the first mounting position (32), t1=0.3h, h is the height of the resolver stator (1), and the units of t1 and h are both mm.

8. A rotary transformer, characterized in that: It comprises a resolver rotor, a resolver stator (1) and a flange (2), wherein the flange (2) is arranged in the resolver stator installation structure according to any one of claims 1 to 7, and the flange (2) is detachably connected to the end cover (3); the resolver stator (1) is arranged in the flange (2), and the resolver rotor is arranged in the resolver stator (1).

9. A motor, comprising a motor body, characterized in that: The motor body is provided with the rotary transformer as claimed in claim 8.

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