A coreless three-phase variable frequency energy-saving motor

Abstract

The present invention discloses a coreless three-phase variable frequency energy-saving motor, including a bearing frame, an upper baffle and a lower baffle, and a permanent magnet rotor. The upper baffle includes a connecting portion and a plurality of protrusions, and a coil assembly is arranged on the plurality of protrusions. The protrusions pass through the coil assembly. A fastening device connecting the upper baffle and the lower baffle is arranged between the two. When the protrusion is provided with the coil assembly, the fastening device abuts against the coil assembly. By adopting the above structure, the coreless three-phase variable frequency energy-saving motor has the main function of energy saving and is easy to manufacture. It is composed of three or more coils, and is composed of non-magnetic stainless steel plates and stainless steel screw rods. The rotor is a permanent magnet and a stainless steel shaft. The coil can be plugged in, which is convenient and flexible, and the number of coils such as 3, 6, 9, and 12 can be produced. The frequency converter can be connected to adjust the speed, and it is suitable for various speed regulating machines, such as electric fans, blowers, hair dryers, and adjustable speed electric grinding motors.

Description

Technical Field

[0001] The invention relates to an iron-coreless three-phase variable frequency energy-saving motor, and in particular to an iron-coreless three-phase variable frequency energy-saving motor with compact structure, convenient manufacturing and easy installation and removal of coils. Background Art

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil (i.e., stator winding) to generate a rotating magnetic field and act on a magnetic rotor to form a three-phase rotating magnetic field. The electric motor is mainly composed of a stator and a rotor. The direction of the force movement of the energized conductor in the magnetic field is related to the direction of the current and the direction of the magnetic flux lines (magnetic field direction). The working principle of the electric motor is that the magnetic field acts on the force of the current to make the motor rotate. At present, traditional electric motors for teaching are relatively complex in structure, use a lot of silicon steel sheets, have large magnetic circuit losses, are heavy, and are costly. They are not easy to produce. How to overcome the above-mentioned problems is a problem that the present invention needs to solve. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an iron-coreless three-phase variable frequency energy-saving motor, which has the characteristics of compact structure, convenient manufacturing and easy installation and removal of coils.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a coreless three-phase variable frequency energy-saving motor, the innovation of which is that the coreless three-phase variable frequency energy-saving motor includes a bearing frame vertically arranged with a central axis, an upper baffle and a lower baffle for the bearing frame to pass through and symmetrically arranged up and down, and a permanent magnet rotor located between the upper baffle and the lower baffle and arranged around the bearing frame, the upper baffle and the lower baffle have the same structure, and the upper baffle includes a connecting portion located at the core, and a plurality of protrusions arranged around the connecting portion, and a number of coil assemblies less than or equal to the number of the protrusions are arranged on the plurality of protrusions, the protrusions on the upper baffle and the lower baffle pass through the coil assembly, and the coil assembly is located outside the permanent magnet rotor, a starting ring is arranged on the bearing frame, and a fastening device connecting the upper baffle and the lower baffle is arranged between the two, and the fastening device abuts against the coil assembly when the coil assembly is arranged on the protrusion.

[0005] Preferably, the coil assembly comprises a comb-teeth vertical plate, a positioning vertical plate, and a coil located between the comb-teeth vertical plate and the positioning vertical plate, and the protrusion passes through the comb-teeth vertical plate and the positioning vertical plate.

[0006] Preferably, the comb-teeth-shaped vertical plate is provided with a plurality of continuously distributed groove-like structures, the wires connected to the coil are embedded in the groove-like structures, and the groove-like structures are located on one side of the upper baffle.

[0007] Preferably, the fastening device is a fastening non-magnetic stainless steel bolt.

[0008] The advantages of the present invention are: by adopting the above structure, the coreless three-phase variable frequency energy-saving motor mainly has the function of energy saving, is easy to manufacture, is composed of three coils or multiple coils, is composed of non-magnetic stainless steel plates and stainless steel screw rods, the rotor is a permanent magnet and a stainless steel shaft, the coils can be plugged in, it is convenient and flexible, and 3, 6, 9, 12 and other coil numbers can be produced. The speed can be adjusted by connecting a frequency converter, and it is suitable for use in various speed regulating machines, such as electric fans, blowers, hair dryers, adjustable speed electric grinding motors, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] Figure 1 It is a stereoscopic diagram of an iron-coreless three-phase variable-frequency energy-saving motor of the present invention.

[0011] Figure 2 The present invention is a front view of a coreless three-phase variable frequency energy-saving motor.

[0012] Figure 3 The present invention is an exploded view of a coreless three-phase variable frequency energy-saving motor.

[0013] In the figure: 1-bearing frame, 2-upper baffle, 21-connecting part, 22-protruding part, 3-lower baffle, 4-permanent magnet rotor, 5-fastening device, 61-vertical plate with comb teeth, 62-positioning vertical plate, 63-coil. DETAILED DESCRIPTION

[0014] The coreless three-phase variable frequency energy-saving motor of the present invention comprises a bearing frame 1 with a vertically arranged central axis, an upper baffle 2 and a lower baffle 3 for the bearing frame to pass through and symmetrically arranged up and down, and a permanent magnet rotor 4 located between the upper baffle and the lower baffle and arranged around the bearing frame. The upper baffle and the lower baffle have the same structure, and the upper baffle comprises a connecting portion 21 located at the core, and a plurality of protrusions 22 arranged around the connecting portion, and a number of coil assemblies less than or equal to the number of protrusions are arranged on the plurality of protrusions. The protrusions on the upper baffle and the lower baffle pass through the coil assembly, and the coil assembly is located on the outside of the permanent magnet rotor. A starting ring is arranged on the bearing frame, and a fastening device 5 connecting the upper baffle and the lower baffle is arranged between the two. When the coil assembly is arranged on the protrusion on the upper baffle, the fastening device presses against the coil assembly. By adopting the above structure, the coreless three-phase variable frequency energy-saving motor has the main function of energy saving and is easy to manufacture. It is composed of three coils or multiple coils, and is composed of non-magnetic stainless steel plates and stainless steel screw rods. The rotor is a permanent magnet and a stainless steel shaft. The coils can be plugged in, which is convenient and flexible. Moreover, 3, 6, 9, 12 and other coil numbers can be produced. The speed can be adjusted by connecting a frequency converter, and it is suitable for various speed regulating machines, such as electric fans, blowers, hair dryers, adjustable speed electric grinding motors, etc.

[0015] The coil assembly comprises a comb-teeth vertical plate 61, a positioning vertical plate 62, and a coil 63 located between the comb-teeth vertical plate and the positioning vertical plate, and the protrusion passes through the comb-teeth vertical plate and the positioning vertical plate.

[0016] The comb-shaped vertical plate is provided with a plurality of continuously distributed groove structures, and the wires connected to the coil are embedded in the groove structures, and the groove structures are located on one side of the upper baffle; the fastening device is a fastening non-magnetic stainless steel bolt.

[0017] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than a limiting technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims

1. A coreless three-phase variable frequency energy-saving motor, characterized in that: The coreless three-phase variable frequency energy-saving motor includes a bearing frame with a vertically arranged central axis, an upper baffle and a lower baffle for the bearing frame to pass through and symmetrically arranged up and down, and a permanent magnet rotor located between the upper baffle and the lower baffle and arranged around the bearing frame. The upper baffle and the lower baffle have the same structure, and the upper baffle includes a connecting portion located at the core, and a plurality of protrusions arranged around the connecting portion, and a number of coil assemblies less than or equal to the number of the protrusions are arranged on the plurality of protrusions, the protrusions on the upper baffle and the lower baffle pass through the coil assembly, and the coil assembly is located on the outside of the permanent magnet rotor, a starting ring is arranged on the bearing frame, and a fastening device connecting the upper baffle and the lower baffle is arranged between the two, and the fastening device presses against the coil assembly when the coil assembly is arranged on the protrusion.

2. The coreless three-phase variable frequency energy-saving motor according to claim 1, characterized in that: The coil assembly includes a vertical plate with comb teeth, a positioning vertical plate, and a coil located between the vertical plate with comb teeth and the positioning vertical plate, and the protrusion passes through the vertical plate with comb teeth and the positioning vertical plate.

3. The coreless three-phase variable frequency energy-saving motor according to claim 2, characterized in that: The comb-teeth-shaped vertical plate is provided with a plurality of continuously distributed groove structures, the wires connected to the coil are embedded in the groove structures, and the groove structures are located on one side of the upper baffle.

4. The coreless three-phase variable frequency energy-saving motor according to claim 1, characterized in that: The fastening device is a fastening non-magnetic stainless steel bolt.

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