Improved synchronous reluctance motor

Abstract

An improved synchronous reluctance motor comprises a shell with a cavity, a rotating shaft capable of rotating is arranged in the shell in a penetrating mode, a rotor is fixedly connected to the outside of the rotating shaft in a sleeving mode, a stator is arranged on the outer side of the rotor, the stator is fixed to the shell, and a stator coil is arranged in the circumferential direction in the axis direction of the rotating shaft; the rotor and the stator are both composed of a plurality of silicon steel sheets arranged in the length direction of the rotating shaft, a hole formed in the center of the rotor is non-circular, and the outer side face of the stator is non-circular. The shell is provided with a sealing cover plate on one side of the opening of the cavity, and the sealing cover plate abuts against and fixes the stator. Different from an existing rotor integrated design mode, the rotor is arranged to be of a split structure formed by stacking the silicon steel sheets, so that the rotor can be adaptively changed along with the change of the number of the silicon steel sheets of the stator, only the length specification of the rotating shaft needs to be changed when the rotating shaft is machined through a lathe, and additional die arrangement and the like are not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous reluctance motors, in particular to an improved synchronous reluctance motor. Background Art

[0002] The main components of the motor are the stator and the rotor. Some motors use stacked silicon steel sheets as stators, while the rotor is generally an integral structure. However, this one-piece design lacks adaptability.

[0003] Therefore, when manufacturing motors of different sizes and lengths, the number of stacked silicon steel sheets in the stator needs to be changed to adjust the motor size. However, if the rotor remains in its original, one-piece structure, the magneto-electric efficiency will fluctuate erratically when controlling rotation, necessitating a new rotor size or model to accommodate the change. This necessitates the creation of molds or the purchase of new materials to produce a second or even additional rotor lengths. Utility Model Content

[0004] In order to solve the problem of the shortcomings of the above-mentioned integrated rotor design, the utility model provides an improved synchronous reluctance motor.

[0005] The technical solution of this utility model is as follows:

[0006] An improved synchronous reluctance motor comprises a housing with a cavity, a rotatable shaft passing through the housing, a rotor fixedly attached to the outer surface of the shaft, a stator fixed to the housing and having stator coils circumferentially arranged along the axis of the shaft;

[0007] The rotor and stator are both composed of a plurality of silicon steel sheets arranged along the length direction of the rotating shaft, and the central opening of the rotor is non-circular, and the outer surface of the stator is non-circular;

[0008] The housing is provided with a sealing cover plate on one side of the opening of the cavity, and the sealing cover plate contacts and fixes the stator.

[0009] The rotor is configured as a split structure formed by stacking silicon steel sheets, so it can adapt to changes in the number of stator silicon steel sheets.

[0010] The specific structure of the above-mentioned rotating shaft is that the rotating shaft includes a positioning section, a limiting section, a mounting section and an output section arranged in sequence, and a clamping key is provided at the output section.

[0011] The method for fixing the rotor silicon steel sheets is that the silicon steel sheets constituting the rotor are all provided with openings along the length direction of the rotating shaft, and can be fixed through the openings.

[0012] The method for locking the rotor silicon steel sheets is that the rotor is sleeved on the installation section, with one end abutting against the limiting section, and a C-shaped limiting ring is provided at the other end for cooperation and fixation.

[0013] In order to prevent the rotor from being unable to drive the rotating shaft, the rotor and the mounting section cannot rotate relative to each other.

[0014] The stator silicon steel sheets are fixed by winding the silicon steel sheets around a plurality of circumferentially arranged stator coils. No additional fixing structure is required, and the silicon steel sheets can be connected by winding the stator coils.

[0015] The stator is fixed in such a manner that the stator cannot rotate relative to the housing, and one end of the stator contacts a detachable sealing cover plate and is fixed by the sealing cover plate.

[0016] As a preferred solution, the silicon steel sheets constituting the rotor and stator have the same thickness, which can ensure the adaptability of the stator and rotor when any number of silicon steel sheets is added.

[0017] The beneficial effect of the present invention is that: the present invention is an improved synchronous reluctance motor, which is different from the existing integrated rotor design. The rotor is set to a structure composed of stacked silicon steel sheets, the same as the stator. Therefore, it can synchronously adaptively change with the change in the number of stacked stator silicon steel sheets to extend the length, thereby obtaining rotors of more length specifications to adapt to stators of different thickness specifications without affecting the original function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiment below, the solutions and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not to be considered as limiting the present invention.

[0019] In the attached figure:

[0020] Figure 1 This is a schematic diagram of the structure of the utility model (after removing the sealing cover);

[0021] Figure 2 for Figure 1 Schematic diagram of the structure after removing the limit ring;

[0022] Figure 3 for Figure 2 Schematic diagram of the structure after disassembly of the stator coil;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the shaft structure of the utility model;

[0025] The components represented by the reference numerals in the figure are:

[0026] 1. Housing; 2. Sealing cover; 3. Rotating shaft; 31. Output section; 32. Snap-on key; 33. Mounting section; 34. Limiting section; 35. Positioning section; 4. Rotor; 5. Stator; 6. Stator coil; 7. Limiting ring. DETAILED DESCRIPTION

[0027] like Figure 1-4 An improved synchronous reluctance motor shown in the figure includes a shell 1 with a cavity, and the shell 1 is provided with a terminal box for easy wiring, and fins are provided on the outside of the shell, which is the same as the existing motor structure. In order to facilitate installation, a mounting base is provided under the shell 1. The design feature of this device is that a rotatable shaft 3 is provided through the shell 1, and the above-mentioned shaft 3 is not the same as the shaft of the existing motor, but is specially designed and includes multiple sections.

[0028] like Figure 5 As shown, the specific structure of the above-mentioned rotating shaft 3 is that the rotating shaft 3 includes a positioning section 35, a limiting section 34, an installation section 33 and an output section 31 arranged in sequence, and a snap-in key 32 is provided at the output section 31. The method of providing the snap-in key 32 at the position of the output section 31 for the workpiece is relatively common and will not be repeated here. The method of the positioning section 35 passing through the connecting bearing is also common sense. The difference lies in the limiting section 34 and the installation section 33 of this device.

[0029] Among them, it should be noted that the rotor 4 is fixed on the outer shell of the rotating shaft 3, and the rotor 4 is socketed on the mounting section 33. In order to prevent the rotor 4 from being unable to drive the rotating shaft 3, the rotor 4 and the mounting section 33 cannot rotate relative to each other. That is to say, the connection method between the above-mentioned rotor 4 and the mounting section 33 is not a circular hole passing through, but a non-circular hole.

[0030] Afterwards, a stator 5 is provided outside the rotor 4, and the stator 5 is fixed to the housing 1 and a stator coil 6 is provided circumferentially along the axis of the rotating shaft 3. Since its structure is a conventional setting, it will not be described in detail. It is sufficient to drive the rotor to rotate.

[0031] Finally, and also the focus of this device, the rotor 4 and stator 5 are both composed of multiple silicon steel sheets arranged along the length direction of the rotating shaft 3, and the central opening of the rotor 4 is non-circular, and the outer surface of the stator 5 is non-circular. The stator 5 is designed for stacking silicon steel sheets in the same way as the existing motor design, while the rotor 4 is different. That is, it is necessary to ensure that after the silicon steel sheets are stacked, the rotor 4 can rotate synchronously with the rotating shaft 3, and it is also necessary to avoid the phenomenon of dispersion and detachment of the silicon steel sheets.

[0032] For this reason, Figure 1 、 2As shown, the method for fixing the silicon steel sheets of the rotor 4 is that the silicon steel sheets constituting the rotor 4 are all provided with openings along the length direction of the rotating shaft 3, and can be fixed through the openings. Rivets or bolts can be passed through the openings, and the purpose is to connect multiple silicon steel sheets through them.

[0033] The method for locking the silicon steel sheets of the rotor 4 is that the rotor 4 is sleeved on the installation section 33, and one end contacts the limiting section 34, and the other end is provided with a C-shaped limiting ring 7 for fixation. The setting of the limiting ring 7 can avoid the dispersion phenomenon between multiple silicon steel sheets. With the combination of the limiting ring 7 and the limiting section 34, all silicon steel sheets can be pressed and fixed.

[0034] Finally, if Figure 4 As shown, the housing 1 is provided with a sealing cover plate 2 on one side of the cavity opening, and the sealing cover plate 2 contacts and secures the stator 5. This structure allows the rotor 4 to be configured as a split structure formed by stacking silicon steel sheets, thereby adapting to changes in the number of silicon steel sheets in the stator 5.

[0035] As a preferred embodiment, Figure 1 As shown, the stator 5 silicon steel sheets are fixed by being wound by a plurality of circumferentially arranged stator coils 6. No additional fixing structure is required, and the connection of the silicon steel sheets can be achieved by winding the stator coils 6.

[0036] The stator 5 is fixed in such a way that the stator 5 cannot rotate relative to the housing 1, and one end thereof contacts the detachable sealing cover plate 2 and is fixed by the sealing cover plate 2. After the sealing cover plate 2 is fixed to the housing 1 by a bolt or rivet structure, it can be pressed to ensure that its position is fixed.

[0037] Since the rotor 4 and the stator 5 are compatible, the thickness of the silicon steel sheets constituting the rotor 4 and the stator 5 is the same for ease of use and modification, thereby ensuring the adaptability of the stator 5 and the rotor 4 when any number of silicon steel sheets is added.

Claims

1. An improved synchronous reluctance motor, comprising a housing (1) with a cavity, characterized in that: A rotatable rotating shaft (3) is provided through the housing (1), a rotor (4) is fixedly attached to the outer surface of the rotating shaft (3), a stator (5) is provided on the outer side of the rotor (4), and the stator (5) is fixed to the housing (1) and a stator coil (6) is provided circumferentially along the axial direction of the rotating shaft (3); The rotor (4) and the stator (5) are both composed of a plurality of silicon steel sheets arranged along the length direction of the rotating shaft (3), and the central opening of the rotor (4) is non-circular, and the outer surface of the stator (5) is non-circular; The housing (1) is provided with a sealing cover plate (2) on one side of the opening of the cavity, and the sealing cover plate (2) contacts and fixes the stator (5).

2. The improved synchronous reluctance motor according to claim 1, characterized in that: The rotating shaft (3) comprises a positioning section (35), a limiting section (34), a mounting section (33) and an output section (31) which are arranged in sequence, and a clamping key (32) is provided at the output section (31).

3. The improved synchronous reluctance motor according to claim 2, characterized in that: The silicon steel sheets constituting the rotor (4) are all provided with openings along the length direction of the rotating shaft (3), and can be fixed through the openings.

4. The improved synchronous reluctance motor according to claim 2, characterized in that: The rotor (4) is sleeved on the mounting section (33), with one end contacting the limiting section (34), and the other end is provided with a C-shaped limiting ring (7) for cooperation and fixation.

5. The improved synchronous reluctance motor according to claim 4, characterized in that: The rotor (4) and the mounting section (33) are unable to rotate relative to each other.

6. The improved synchronous reluctance motor according to claim 1, characterized in that: The silicon steel sheets constituting the stator (5) are wound by a plurality of stator coils (6) arranged circumferentially.

7. The improved synchronous reluctance motor according to claim 1, characterized in that: The stator (5) cannot rotate relative to the housing (1), and one end of the stator abuts against a detachable sealing cover plate (2) and is fixed by the sealing cover plate (2).

8. The improved synchronous reluctance motor according to claim 1, characterized in that: The silicon steel sheets constituting the rotor (4) and the stator (5) have the same thickness.

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