CN217741535U - Synchronous reluctance structure of built-in ferrite of no demagnetization - Google Patents
Synchronous reluctance structure of built-in ferrite of no demagnetization Download PDFInfo
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- CN217741535U CN217741535U CN202221801592.3U CN202221801592U CN217741535U CN 217741535 U CN217741535 U CN 217741535U CN 202221801592 U CN202221801592 U CN 202221801592U CN 217741535 U CN217741535 U CN 217741535U
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Abstract
The utility model belongs to the technical field of synchronous reluctance motor accessory is used, specifically disclose a synchronous reluctance structure of built-in ferrite of no demagnetization, lead to groove, U-shaped draw-in groove, two sets of fixing through holes, a plurality of U-shaped air gap and lead to groove and U-shaped ferrite etc. including stator, rotor, stator slot, rotor shaft installation. The utility model discloses a synchronous reluctance structure of built-in ferrite of no demagnetization's beneficial effect lies in: 1. compared with the traditional asynchronous motor, the synchronous reluctance motor has the advantages of synchronous rotating speed without slip, no rotor loss, high efficiency and wider high-efficiency interval; 2. the rotor is internally grooved, the surface is smooth, the continuous rotating magnetic field is controlled, the noise and the vibration are less, the universal driving hardware architecture is adopted, and the cost is lower; 3. the synchronous reluctance motor has small starting current, cannot cause impact on a power grid, generates huge torque output and ensures the requirements of site working conditions; 4. the synchronous reluctance motor can not generate demagnetization phenomenon due to high temperature, and the built-in ferrite material generates a high-efficiency magnetic field.
Description
Technical Field
The utility model belongs to the technical field of synchronous reluctance motor accessory is used, concretely relates to synchronous reluctance structure of built-in ferrite of no demagnetization, the synchronous reluctance motor product of using its equipment is widely used in trades such as iron and steel, electric power, chemical industry, metallurgy, mine, papermaking, coal, building materials, machinery.
Background
The motor occupies a great position in the global automation market, occupies 75 percent of industrial electricity, is mainly based on the traditional three-phase asynchronous motor in the market, has simple structure, reliable operation and low price, and can save various materials. Some reluctance and permanent magnet motors with high technical content also appear, three-phase asynchronous motors are more in manufacturers and high in yield, and the market price competition situation is mutually preempted.
The current three-phase asynchronous motor has the following disadvantages: 1. the starting torque is not large, and the requirement of starting with load is difficult to meet, most methods for solving the problem in the present society are to improve the starting torque by improving the power capacity (capacity increase) of the motor, so that a serious 'big horse-drawn vehicle' is caused, the investment of purchasing equipment is increased, a large amount of electricity is wasted due to low-load operation in long-term application, and the method is not economical; (2) The large torque is not large, and when the large torque is used for driving a load which is frequently overloaded for a short time, such as a crusher used in a mine, and the like, the large torque is often stopped to burn out a motor, so that the large torque can only be operated under a light load condition, the yield is reduced, and electric energy is wasted.
Therefore, based on the above problems, the present invention provides a synchronous reluctance structure without demagnetizing built-in ferrite.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a synchronous reluctance structure of built-in ferrite of no demagnetization, solve the technical problem who exists among the background art, install the self performance that the synchronous reluctance motor of this product greatly improved traditional motor promptly, noise, vibrations, attributes such as insulation level, high performance vector control, synchronous speed does not have the slip, can the speed governing, low rotational speed keeps big torsion, satisfy on-the-spot operating mode demand, the problem that traditional motor starting current caused the impact to the electric wire netting greatly has also been solved simultaneously, low rotational speed also can keep the motor efficient operation interval.
The technical scheme is as follows: the utility model provides a pair of synchronous reluctance structure of built-in ferrite of no demagnetization, including stator, rotor, stator inner wall evenly is provided with the stator groove, be provided with rotor shaft installation logical groove in the rotor, rotor inner wall is provided with the U-shaped draw-in groove that matches and use with rotor shaft installation logical groove, in the rotor, and the outer symmetry that is located rotor shaft installation logical groove is provided with two sets of fixing hole, in the rotor, and be located the outer logical groove of a plurality of U-shaped air gap that is provided with of fixing hole, a plurality of U-shaped air gap leads to the inslot and is provided with the U-shaped ferrite respectively.
According to the technical scheme, a plurality of stator clamping grooves and semicircular clamping grooves formed in any stator clamping groove are formed in the outer wall of the stator.
According to the technical scheme, the U-shaped air gap through grooves are provided with two groups and are positioned between the extension lines of the adjacent fixing through holes.
According to the technical scheme, any group of U-shaped air gap through grooves are in a diffusion corrugated shape, and the size from the inner layer to the edge is gradually enlarged.
According to the technical scheme, the two groups of U-shaped air gap through grooves form a square on the end faces of the two ends of the rotor, wherein the fixing through holes are located at four corners of the square.
Compared with the prior art, the utility model discloses a synchronous reluctance structure of built-in ferrite of no demagnetization's beneficial effect lies in: 1. compared with the traditional asynchronous motor, the synchronous reluctance motor has the advantages of synchronous rotating speed without slip, no rotor loss, high efficiency and wider high-efficiency interval; 2. the rotor is internally grooved, the surface is smooth, the continuous rotating magnetic field is controlled, the noise and the vibration are less, the universal driving hardware architecture is adopted, and the cost is lower; 3. the synchronous reluctance motor has small starting current, cannot cause impact on a power grid, generates huge torque output and ensures the requirements of site working conditions; 4. the synchronous reluctance motor can not generate demagnetization phenomenon due to high temperature, and the built-in ferrite material generates a high-efficiency magnetic field.
Drawings
Fig. 1 is a schematic structural view of a synchronous reluctance structure without demagnetizing built-in ferrite according to the present invention;
wherein the numbers in the figures are as follows: 100-stator, 101-stator slot, 102-stator slot, 103-semicircular slot, 200-rotor, 201-rotor shaft mounting through slot, 202-U-shaped slot, 203-fixing through hole, 204-U-shaped air gap through slot and 300-U-shaped ferrite.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Example one
A synchronous reluctance structure of a degaussing-free built-in ferrite, as shown in fig. 1, comprises a stator 100, a rotor 200,
the inner wall of the stator 100 is uniformly provided with stator slots 101,
a rotor shaft mounting through groove 201 is arranged in the rotor 200,
the inner wall of the rotor 200 is provided with a U-shaped clamping groove 202 which is matched with the through groove 201 for installing the rotor shaft,
two groups of fixing through holes 203 are symmetrically arranged in the rotor 200 and on the outer layer of the rotor shaft mounting through groove 201,
in the rotor 200, a plurality of U-shaped air gap through grooves 204 are formed in the outer layer of the fixing through hole 203, and U-shaped ferrites 300 are respectively arranged in the U-shaped air gap through grooves 204.
Example two
A synchronous reluctance structure of a degaussing-free built-in ferrite as shown in fig. 1 comprises a stator 100, a rotor 200,
the inner wall of the stator 100 is uniformly provided with stator slots 101,
a rotor shaft mounting through groove 201 is arranged in the rotor 200,
the inner wall of the rotor 200 is provided with a U-shaped clamping groove 202 which is matched with the through groove 201 for mounting the rotor shaft,
two groups of fixing through holes 203 are symmetrically arranged in the rotor 200 and at the outer layer of the rotor shaft mounting through groove 201,
in the rotor 200, a plurality of U-shaped air gap through grooves 204 are formed in the outer layer of the fixing through hole 203, U-shaped ferrites 300 are respectively arranged in the U-shaped air gap through grooves 204, a plurality of stator clamping grooves 102 and semicircular clamping grooves 103 arranged in any stator clamping groove 102 are formed in the outer wall of the stator 100.
Preferably, in the synchronous reluctance structure of the degaussing-free built-in ferrite according to the first or second structural embodiment, two groups of U-shaped air gap through slots 204 are arranged and located between the extension lines of the adjacent fixing through holes 203.
In the synchronous reluctance structure without demagnetizing embedded ferrite according to the first or second structural embodiment, preferably, any one group of U-shaped air gap through grooves 204 is in a diffusion corrugated shape, and the size gradually increases from the inner layer to the edge.
Preferably, in the synchronous reluctance structure of the demagnetizing-free built-in ferrite according to the first or second structural embodiment, the two sets of U-shaped air gap through slots 204 form a square at the end faces of the two ends of the rotor 200, wherein the fixing through holes 203 are located at four corners of the square.
The working principle or the structural principle of the synchronous reluctance structure without demagnetizing built-in ferrite in the first structural embodiment or the second structural embodiment is as follows:
the synchronous reluctance motor with a synchronous reluctance structure provided with built-in demagnetizing-free ferrites is a synchronous motor which drives a rotating shaft of the motor to rotate by utilizing torque (reluctance torque) generated by the difference of the reluctance of a D shaft and a Q shaft of a rotor based on the principle of shortest reluctance path. In the synchronous reluctance motor, a magnetic field is generated by a stator winding in sinusoidal distribution, a part of vortex magnetic field is generated, the motor does useless work, and energy loss is caused, so that the magnetizing material ferrite is added into a U-shaped air gap through groove 204 of a rotor to strengthen the magnetic field of the motor, a shaft head of the motor outputs high-efficiency torsion, and meanwhile, the material is high in price performance, low in cost, obvious in magnetizing effect and free from demagnetization at high temperature.
In addition, the ferrite in the U-shaped air gap through groove 204 can be replaced by a rotor permanent magnet material, so that the high-efficiency performance of the motor can be ensured, but the permanent magnet material is high in cost, high-temperature demagnetization is realized, and the service life is short.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. A synchronous reluctance structure of built-in ferrite of no demagnetization includes stator (100), rotor (200), characterized by: stator (100) inner wall evenly is provided with stator groove (101), it leads to groove (201) to be provided with rotor shaft installation in rotor (200), rotor (200) inner wall is provided with and leads to groove (201) U-shaped draw-in groove (202) that cooperate and use with rotor shaft installation, in rotor (200), and the outer symmetry that is located rotor shaft installation and leads to groove (201) is provided with two sets of fixing hole (203), in rotor (200), and be located fixing hole (203) skin and be provided with a plurality of U-shaped air gap and lead to groove (204), be provided with U-shaped ferrite (300) in the logical groove (204) of a plurality of U-shaped air gap respectively.
2. The synchronous reluctance structure of degaussing-free built-in ferrite according to claim 1, wherein: the stator structure is characterized in that a plurality of stator clamping grooves (102) and semicircular clamping grooves (103) arranged in any stator clamping groove (102) are formed in the outer wall of the stator (100).
3. The synchronous reluctance structure of a non-demagnetizing built-in ferrite according to claim 1, wherein: two groups of U-shaped air gap through grooves (204) are arranged and are positioned between extension lines of the adjacent fixing through holes (203).
4. The synchronous reluctance structure of degaussing-free built-in ferrite according to claim 3, wherein: any group of U-shaped air gap through grooves (204) are in a diffusion corrugated shape, and the size from the inner layer to the edge is gradually enlarged.
5. The synchronous reluctance structure of a non-demagnetizing built-in ferrite according to claim 3, wherein: the two groups of U-shaped air gap through grooves (204) form a square on the end faces of the two ends of the rotor (200), wherein the fixing through holes (203) are positioned at four corners of the square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801592.3U CN217741535U (en) | 2022-07-13 | 2022-07-13 | Synchronous reluctance structure of built-in ferrite of no demagnetization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801592.3U CN217741535U (en) | 2022-07-13 | 2022-07-13 | Synchronous reluctance structure of built-in ferrite of no demagnetization |
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| Publication Number | Publication Date |
|---|---|
| CN217741535U true CN217741535U (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221801592.3U Active CN217741535U (en) | 2022-07-13 | 2022-07-13 | Synchronous reluctance structure of built-in ferrite of no demagnetization |
Country Status (1)
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| CN (1) | CN217741535U (en) |
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2022
- 2022-07-13 CN CN202221801592.3U patent/CN217741535U/en active Active
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